Galvanized profile rolling forming device

Abstract

The utility model provides a galvanized profile rolling forming device which comprises a rack, and a guide limiting mechanism, a first rolling mechanism and a second rolling mechanism are sequentially arranged on the rack. The first rolling mechanism is used for bending a profile plate to form a bottom and two vertical parts perpendicular to the two sides of the bottom respectively, the first rolling mechanism comprises a plurality of rolling wheel sets, and each rolling wheel set comprises an upper rolling wheel and a lower rolling wheel; the inverted second rolling wheel set comprises a first upper rolling wheel and a first lower rolling wheel, the first upper rolling wheel is provided with a first groove, the first lower rolling wheel is provided with a first protruding part matched with the first groove, the inverted first rolling wheel set comprises a second upper rolling wheel and a second lower rolling wheel, the second upper rolling wheel is provided with a second protruding part, and the second lower rolling wheel is provided with a second protruding part matched with the second protruding part. The second lower roller is provided with a second groove matched with the second protruding part. The second rolling mechanism is used for bending the two vertical parts towards the outer sides correspondingly. According to the utility model, the rolling forming processing precision and the yield of the galvanized profile can be improved.

Description

Technical Field

[0001] The utility model relates to a roll forming device, in particular to a galvanized profile roll forming device. Background Art

[0002] At present, the processing and bending process of galvanized profiles is generally to directly pass the metal sheet through the rollers of the roller press with a fixed angle to continuously roll and bend it. However, due to the characteristics of galvanized materials, this method is prone to rebound at the bending point of the profile during the traditional roll forming process, and may also cause stress concentration, resulting in cracks or fractures in the material, unstable structure, making it difficult to meet the design requirements for the forming angle, and affecting the accuracy and consistency of the product. Utility Model Content

[0003] The utility model provides a galvanized profile roll forming device, which can effectively solve the above problems.

[0004] The utility model is achieved in this way:

[0005] A galvanized profile roll forming device, comprising:

[0006] A frame, on which a guide limit mechanism, a first rolling mechanism, and a second rolling mechanism are sequentially arranged;

[0007] The first rolling mechanism is used to bend the profile sheet to form a bottom and two vertical parts respectively perpendicular to the two sides of the bottom, and the first rolling mechanism includes a plurality of rolling wheel groups arranged in a straight line, and each of the rolling wheel groups includes an upper rolling wheel and a lower rolling wheel;

[0008] A reverse two-roller pressing wheel group and a reverse one-roller pressing wheel group are arranged at the end of the first rolling mechanism, the reverse two-roller pressing wheel group includes a first upper roller and a first lower roller, the first upper roller is provided with a first groove, the first lower roller is provided with a first protrusion matched with the first groove, and the reverse one-roller pressing wheel group includes a second upper roller and a second lower roller, the second upper roller is provided with a second protrusion, and the second lower roller is provided with a second groove matched with the second protrusion;

[0009] The second rolling mechanism is used for bending the two vertical parts outwards respectively.

[0010] As a further improvement, the first rolling mechanism includes fifteen rolling wheel groups, wherein a left-side forming cavity and a right-side forming cavity are formed between the upper roller and the lower roller in the first to eighth rolling wheel groups, and the left-side forming cavity and the right-side forming cavity form an angle α with the horizontal plane, and the ninth to thirteenth rolling wheel groups and the reverse two-roller rolling wheel group and the reverse one-roller rolling wheel group in the first rolling mechanism also include a left roller and a right roller arranged on both sides of the profile sheet, and the side surfaces of the left roller and the right roller form an angle β with the side surface of the upper roller.

[0011] As a further improvement, the angle α and the angle β in the first rolling mechanism gradually increase from front to back, and α is smaller than β. The angle β in the reverse two-roller pressing wheel group is 90°.

[0012] As a further improvement, the guide and limiting mechanism includes four guide wheels, which are arranged in groups of two on both sides of the profile sheet and can be adjusted left and right.

[0013] As a further improvement, the second rolling mechanism includes six side pressing roller groups arranged in a straight line, each of the side pressing roller groups includes a top roller, a bottom roller, a left bending roller and a right bending roller, the left bending roller and the right bending roller are respectively provided with a left protrusion and a right protrusion, the left protrusion and the right protrusion cooperate with the side surface of the top roller to bend the vertical portion.

[0014] The beneficial effects of the utility model are:

[0015] Through the special design of the reverse two-roller pressing wheel group and the reverse one-roller pressing wheel group, the precise control of the springback of the galvanized profile is achieved to ensure that the bending angle meets the design requirements; the angle β of the reverse one-roller pressing wheel group is adjusted according to the thickness and metal composition of the material to adapt to the springback characteristics of different materials, and the gradual angle change of multiple roller pressing wheel groups in the first rolling mechanism realizes the smooth bending of the profile sheet and reduces stress concentration and material damage; the four guide wheels of the guide limit mechanism can be precisely adjusted to ensure the correct centering of the material and improve the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of the utility model.

[0018] Figure 2 It is a schematic diagram of the structure of the inverted two-roller pressing wheel group provided in an embodiment of the utility model.

[0019] Figure 3 It is a schematic diagram of the structure of the reverse roller pressing wheel group provided in an embodiment of the utility model.

[0020] Figure 4 It is a schematic diagram of the structure of the first to eighth roller pressing wheel groups provided in an embodiment of the utility model.

[0021] Figure 5It is a schematic diagram of the structure of the ninth to thirteenth roller pressing wheel groups provided in an embodiment of the utility model.

[0022] Figure 6 It is a schematic diagram of the structure of the second rolling mechanism provided in an embodiment of the utility model.

[0023] Reference numerals:

[0024] 1. Frame; 2. Guide and limit mechanism;

[0025] 3. First rolling mechanism; 31. Inverted two-roller pressing wheel group; 311. First upper roller; 3111. First groove; 312. First lower roller; 3121. First protrusion; 32. Inverted one-roller pressing wheel group; 321. Second upper roller; 3211. Second protrusion; 322. Second lower roller; 3221. Second groove; 33. Roll pressing wheel group; 331. Upper roller pressing wheel; 332. Lower roller pressing wheel; 333. Left roller; 334. Right roller;

[0026] 4. Second rolling mechanism; 41. Side pressure roller group; 411. Top roller; 412. Bottom roller; 413. Left bending roller; 414. Right bending roller. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0028] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] Reference Figure 1-6 As shown, a galvanized profile roll forming device comprises: a frame 1, on which a guide limit mechanism 2, a first roll pressing mechanism 3, and a second roll pressing mechanism 4 are sequentially arranged, and the profile sheet material passes through them sequentially when feeding.

[0030] The first rolling mechanism 3 includes fifteen rolling wheel groups 33 arranged in a straight line, and the profile sheet is bent by gradually changing the rolling angle to form a horizontal bottom and two vertical parts perpendicular to the two sides of the bottom, and each rolling wheel group 33 includes an upper rolling wheel 331 and a lower rolling wheel 332; the first rolling mechanism 3 includes fifteen rolling wheel groups 33, wherein a left-side forming cavity and a right-side forming cavity are formed between the upper rollers and the lower rollers in the first to eighth rolling wheel groups 33, and the left-side forming cavity and the right-side forming cavity form an angle α with the horizontal plane, wherein 6°≤α≤64°, and the ninth to thirteenth rolling wheel groups 33 in the first rolling mechanism 3, as well as the reverse second rolling wheel group 31 and the reverse first rolling wheel group 32 also include a left roller 333 and a right roller 333 arranged on both sides of the profile sheet. 4. The side surfaces of the left roller 333 and the right roller 334 form an angle β with the side surface of the upper roller, wherein 65°≤β≤95°, and the angle α and the angle β gradually increase from front to back in the first rolling mechanism 3, and the values ​​of the angle α and the angle β each time increasing can be the same value or can be an arithmetic difference, which can be selected according to actual conditions and is not limited here. In the reverse two-roller pressing wheel group 31, the angle β is 90°, and the angle β of the reverse one-roller pressing wheel group 32 is greater than 90°, because the material of the galvanized profile is prone to rebound after bending, and therefore a certain rebound bending margin is provided so that the angle after rebound can meet the requirements. It should be noted that the angle β of the reverse one-roller pressing wheel group 32 needs to be set according to different materials, and the thickness of the material and the metal composition will affect the rebound amount.

[0031] The reverse two-roller pressing wheel group 31 and the reverse one-roller pressing wheel group 32 are arranged at the end of the first rolling mechanism 3, and the reverse two-roller pressing wheel group 31 includes a first upper roller 311 and a first lower roller 312. The first upper roller 311 is provided with a first groove 3111, and the first lower roller 312 is provided with a first protrusion 3121 adapted to the first groove 3111. The reverse one-roller pressing wheel group 32 includes a second upper roller 321 and a second lower roller 322. The second upper roller 321 is provided with a second protrusion 3211, and the second lower roller 322 is provided with a second groove 3221 adapted to the second protrusion 3211. After multiple rolling and bending, if the stress distribution at the connection part between the bottom and the vertical part is uneven during bending, wrinkles are likely to occur. In the reverse two-roller pressing wheel group 31, the first groove 3111 and the first lower groove 3121 are provided at the connection part between the bottom and the vertical part. The first protrusion 3121 cooperates with each other to form an upwardly arched bottom of the profile sheet material by rolling, so that the internal angle at the connection between the bottom and the vertical portion is less than 90°, that is, over-bending, and then the second protrusion 3211 and the second groove 3221 on the reverse roller group 32 are used to form a downwardly concave rolling on the bottom of the profile sheet material, and the bottom of the profile sheet material that has been arched upward is rolled in the opposite direction. By bending in the opposite direction, these stresses can be partially released and the stress concentration inside the material can be reduced. Bending in opposite directions twice can help the material achieve a more precise bending angle, especially when a very precise 90° angle is required. By bending in one direction first and then in the opposite direction, the springback of the material can be reduced, so that the bending angle is closer to the theoretical value.

[0032] The guide and limiting mechanism 2 includes four guide wheels, which are arranged in groups of two on both sides of the profile sheet and can be adjusted left and right. The guide wheels can help the material to be accurately centered before entering the roller press, ensuring that the material enters the roller press along the correct path, thereby improving the processing accuracy.

[0033] The second rolling mechanism 4 includes six side pressing roller groups 41 arranged in a straight line, each of which includes a top roller 411, a bottom roller 412, a left bending roller 413 and a right bending roller 414. The left bending roller 413 and the right bending roller 414 are respectively provided with a left protrusion and a right protrusion. The left protrusion and the right protrusion cooperate with the side surface of the top roller 411 to bend the vertical portion. The left protrusion and the right protrusion each include a vertical surface and a horizontal surface. The angle between the vertical surface and the horizontal surface gradually decreases, so that the vertical portion is bent outward into an L shape.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A galvanized profile roll forming device, characterized in that: include: A frame (1), on which a guide limit mechanism (2), a first rolling mechanism (3), and a second rolling mechanism (4) are sequentially arranged; The first rolling mechanism (3) is used to bend the profile sheet to form a bottom and two vertical parts respectively perpendicular to the two sides of the bottom, the first rolling mechanism (3) comprises a plurality of rolling wheel groups (33) arranged in a straight line, and each of the rolling wheel groups (33) comprises an upper rolling wheel (331) and a lower rolling wheel (332); A reverse two-roller pressing wheel group (31) and a reverse one-roller pressing wheel group (32) are arranged at the end of the first rolling mechanism (3), the reverse two-roller pressing wheel group (31) comprising a first upper roller (311) and a first lower roller (312), the first upper roller (311) being provided with a first groove (3111), the first lower roller (312) being provided with a first protrusion (3121) matching the first groove (3111), the reverse one-roller pressing wheel group (32) comprising a second upper roller (321) and a second lower roller (322), the second upper roller (321) being provided with a second protrusion (3211), the second lower roller (322) being provided with a second groove (3221) matching the second protrusion (3211); The second rolling mechanism (4) is used to bend the two vertical parts outwards respectively.

2. A galvanized profile roll forming device according to claim 1, characterized in that: The first rolling mechanism (3) includes fifteen rolling wheel groups (33), wherein a left-side molding cavity and a right-side molding cavity are formed between the upper roller and the lower roller in the first to eighth rolling wheel groups (33), and the left-side molding cavity and the right-side molding cavity form an angle α with the horizontal plane, and the ninth to thirteenth rolling wheel groups (33) and the reverse two-roller rolling wheel group (31) and the reverse one-roller rolling wheel group (32) in the first rolling mechanism (3) also include a left roller (333) and a right roller (334) arranged on both sides of the profile sheet, and the side surfaces of the left roller (333) and the right roller (334) form an angle β with the side surface of the upper roller.

3. A galvanized profile roll forming device according to claim 1, characterized in that: From front to back, the included angle α and the included angle β in the first rolling mechanism (3) gradually increase, and α is smaller than β. In the reverse two-roller pressing wheel group (31), the included angle β is 90°.

4. A galvanized profile roll forming device according to claim 1, characterized in that: The guide and limiting mechanism (2) comprises four guide wheels, which are arranged in groups of two on both sides of the profile sheet and can be adjusted left and right.

5. A galvanized profile roll forming device according to claim 1, characterized in that: The second rolling mechanism (4) comprises six side pressing roller groups (41) arranged in a straight line, each of the side pressing roller groups (41) comprising a top roller (411), a bottom roller (412), a left bending roller (413) and a right bending roller (414), the left bending roller (413) and the right bending roller (414) being provided with a left protruding portion and a right protruding portion respectively, the left protruding portion and the right protruding portion cooperating with the side surface of the top roller (411) to bend the vertical portion.

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