Tension-compression molding equipment and tension-compression molding method for thin-wall light-steel multi-cavity plate

Abstract

The invention provides tension-compression molding equipment for a thin-wall light-steel multi-cavity plate, and relates to the technical field of multi-cavity plate machining. The tension-compression molding equipment for the thin-wall light-steel multi-cavity plate comprises a feeding unit, a buckling unit and a rolling unit, the feeding unit and the buckling unit are oppositely arranged, and the rolling unit is located between the feeding unit and the buckling unit; the feeding unit is used for sequentially pushing U-shaped steel with buckles to the buckling unit, the buckling unit is used for buckling, positioning and pressing the two adjacent U-shaped steel, and the rolling unit is used for tensioning the two buckled U-shaped steel and then rolling and fixing the two buckled U-shaped steel. According to the tension-compression molding equipment for the thin-wall light-steel multi-cavity plate, feeding, buckling compression and rolling operation of U-shaped steel are completed through the three operation units which are sequentially arranged and tightly connected, the tension-compression process of the multi-cavity plate is simplified, the production efficiency of the multi-cavity plate is improved, and the requirements for industrial and large-scale production of the multi-cavity plate are met. On the basis, the invention further provides a tension-compression forming method of the thin-wall light-steel multi-cavity plate.

Description

Technical Field

[0001] The invention relates to the technical field of multi-cavity plate processing, and in particular to a drawing and pressing forming device and a drawing and pressing forming method for a thin-wall light steel multi-cavity plate. Background Art

[0002] With the advancement of industrial technology and the replacement of new materials, thin-walled light steel multi-cavity panels have gradually replaced reinforced concrete and metal sheets and have been widely used in many fields such as construction materials, machinery manufacturing, elevator shafts, and ship transportation.

[0003] However, the production technology of thin-walled light steel multi-cavity panels has not been improved. The existing multi-cavity panel production process mostly uses welding, screwing and other technologies to connect and fix thin steel plates of various sizes. Not only are the process steps cumbersome, the production efficiency is low, the standardization of finished products is low, and there are various matching problems, which makes it difficult to meet the growing needs of industrialization and large-scale production. Summary of the invention

[0004] The object of the present invention is to provide a drawing and pressing forming device and a drawing and pressing forming method for a thin-walled light steel multi-cavity plate to solve the above technical problems.

[0005] The present invention is achieved in that: A drawing and pressing forming device for a thin-walled light steel multi-cavity plate comprises a feeding unit, a buckling unit and a rolling unit; the feeding unit and the buckling unit are arranged opposite to each other, and the rolling unit is located between the feeding unit and the buckling unit; the feeding unit is used to push U-shaped steels with buckles to the buckling unit in sequence, the buckling unit is used to buckle and position and press two adjacent U-shaped steels, and the rolling unit is used to tighten the two buckled U-shaped steels and then roll them to fix them.

[0006] Furthermore, the feeding unit includes a straight push module, a flip module and a horizontal push module; the straight push module is used to move the U-shaped steel from the outside, the flip module is used to rotate the U-shaped steel so that its bottom faces the snap-fit ​​unit, and the horizontal push module is used to push the U-shaped steel to the snap-fit ​​unit. Its technical effect is that the feeding action is divided into three steps: workpiece introduction, posture adjustment and precise pushing, which can accurately position and adjust the posture before pushing the workpiece to the snap-fit ​​unit, and can introduce workpieces one by one, seamlessly connecting with the upstream feeding equipment.

[0007] Furthermore, the direct push module includes multiple groups of rollers arranged side by side and clamping the wing plates of the U-shaped steel, and the rollers can move the U-shaped steel by rotating. The technical effect is that the rollers arranged side by side and clamping the U-shaped steel can use their friction to smoothly move the U-shaped steel, thereby achieving the purpose of introducing the workpiece and accurately positioning it.

[0008] Furthermore, the snap-fit ​​unit includes a base and a suction cup; the base is used to fix the bottom plate on which the U-shaped steel is placed, and the base can pull the U-shaped steel to move away from the feeding unit; the suction cup is relatively arranged, and can adjust the distance between the two wing plates by adsorbing the wing plates of the U-shaped steel. Its technical effect is that the relatively arranged suction cup adsorbs the two wing plates to increase the distance between them, that is, expands the opening of the U-shaped steel, so that the U-shaped steel and the next U-shaped steel from the feeding unit can be aligned, and then pushes the two wing plates to reduce the distance between them, that is, resets the opening of the U-shaped steel to achieve the compression of the two U-shaped steels, and when the feeding unit returns to the initial position, the U-shaped steel that arrives later is slightly tightened so that the two U-shaped steels are initially snapped together.

[0009] Furthermore, the rolling unit includes a pulling roller and a squeezing roller; the pulling roller pulls the U-shaped steel to make the two adjacent U-shaped steels buckle, and the squeezing roller rolls and fixes the two adjacent U-shaped steels. The technical effect is that the pulling roller can make the two adjacent U-shaped steels buckle more tightly by pulling after buckling, and the squeezing roller rolls and presses the two buckled U-shaped steels at their buckling position into a tighter fixed connection.

[0010] Furthermore, the rolling unit further includes a riveting roller; the riveting roller is used to rivet and fix the two adjacent U-shaped steels at the mutually clamped position. Its technical effect is that: following the previous rolling process, the riveting roller can perform rivet pressing and fixing on the basis of buckling and rolling, further improving the connection strength of the two adjacent U-shaped steels.

[0011] Furthermore, point-shaped, strip-shaped and / or wavy-shaped rivets are arranged on the circumferential surface of the riveting roller. The technical effects are as follows: point-shaped rivets are easy to arrange and have a small riveting load, and the riveting strength can be improved by arranging multiple rivet points; strip-shaped rivets can keep the platform operating smoothly during the rolling process, and the larger contact surface of the anchor point ensures a more stable riveting effect; in addition to the advantages of a stable riveting process and a larger contact surface, wavy-shaped rivets can also use the wave crest and trough structure of the wavy rivets to increase the effective load of the final product in all directions in the use occasion.

[0012] A method for drawing and pressing a thin-walled light steel multi-cavity plate comprises the following steps: step 1, a feeding unit pushes U-shaped steels with buckles to a buckling unit in sequence; step 2, the buckling unit buckles two adjacent U-shaped steels; step 3, a rolling unit tightens the two buckled U-shaped steels and then rolls them to fix them.

[0013] Further, in step 1, the direct push module moves the U-shaped steel from the outside, the flip module rotates the U-shaped steel so that its bottom faces the buckle unit, and the horizontal push module pushes the U-shaped steel to the buckle unit; in step 2, first, the suction cup absorbs the two wing plates of the first U-shaped steel on the buckle unit to adjust the distance between the two wing plates, and the horizontal push module pushes the second U-shaped steel on the feeding unit to between the two wing plates of the first U-shaped steel, and secondly, the suction cup absorbs the two wing plates of the first U-shaped steel on the buckle unit and reduces the distance between the two wing plates, so that the two wing plates of the first U-shaped steel clamp the bottom plate buckle of the second U-shaped steel; finally, the horizontal push module returns to the initial position; in step 3, the pulling roller pulls the U-shaped steel so that the two adjacent U-shaped steels are buckled, and the squeezing roller rolls the two adjacent U-shaped steels to fix them. Its technical effect is: through specific steps, the operation of the U-shaped steel in the three procedures of feeding, buckling and rolling fixing is refined, which ensures the effectiveness, reliability and high efficiency of making multi-cavity plates using U-shaped steel.

[0014] A method for drawing and pressing a thin-walled light steel multi-cavity plate comprises the following steps: step 1, a feeding unit sequentially pushes U-shaped steels with buckles to a buckling unit; step 2, the buckling unit buckles two adjacent U-shaped steels; step 3, a rolling unit tightens the two buckled U-shaped steels and then rolls them to fix them; step 4, the rolling unit rolls and rivets the two U-shaped steels fixed by the rolls.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The drawing and pressing forming equipment and method of thin-walled light steel multi-cavity plates utilize three closely connected units to complete the feeding, buckling and rolling operations of U-shaped steel, simplifying the drawing and pressing process of multi-cavity plates, improving the production efficiency of multi-cavity plates, and meeting the needs of industrialized and large-scale production of multi-cavity plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present invention and 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 creative work.

[0017] Figure 1 A schematic diagram of the structure of a feeding unit in the drawing and pressing forming equipment for thin-walled light steel multi-cavity plates provided by the present invention; Figure 2 A schematic diagram of the structure of the feeding unit in the drawing and pressing forming equipment of the thin-walled light steel multi-cavity plate provided by the present invention (after the turning module is rotated); Figure 3 A schematic diagram of the structure of a buckling unit in the drawing and pressing forming equipment of a thin-walled light steel multi-cavity plate provided by the present invention; Figure 4 A schematic diagram of the structure of a rolling unit in the drawing and pressing forming equipment for thin-walled light steel multi-cavity plates provided by the present invention; Figure 5 A schematic diagram of the structure of the drawing and pressing forming equipment for the thin-walled light steel multi-cavity plate provided by the present invention; Figure 6 A schematic diagram of the drawing and pressing process of the drawing and pressing forming equipment for the thin-walled light steel multi-cavity plate provided by the present invention; Figure 7 The cross-sectional view is of a multi-cavity plate produced by using the drawing and pressing forming equipment for thin-walled light steel multi-cavity plates provided by the present invention.

[0018] Icons: 100-feeding unit; 110-straight push module; 120-flip module; 130-horizontal push module; 200-fastening unit; 210-base; 220-suction cup; 300-rolling unit; 310-pulling roller; 320-squeezing roller; 400-U-steel; 500-support wheel. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments. Based on some embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0020] Figure 1 A schematic structural diagram of a feeding unit 100 in the drawing and pressing forming equipment for thin-walled light steel multi-cavity plates provided by the present invention; Figure 2 A structural schematic diagram of a feeding unit 100 in the drawing and pressing forming equipment for thin-walled light steel multi-cavity plates provided by the present invention (after the turning module 120 rotates); Figure 3 It is a structural schematic diagram of the buckling unit 200 in the drawing and pressing forming equipment of the thin-wall light steel multi-cavity plate provided by the present invention; Figure 4 A schematic structural diagram of a rolling unit 300 in the drawing and pressing forming equipment for a thin-walled light steel multi-cavity plate provided by the present invention; Figure 5 The schematic diagram of the structure of the drawing and pressing forming equipment of the thin-wall light steel multi-cavity plate provided by the present invention. Figure 1~Figure 5As shown, the present embodiment provides a drawing and pressing forming device for thin-walled light steel multi-cavity plates, comprising a feeding unit 100, a snap-fitting unit 200 and a rolling unit 300; the feeding unit 100 and the snap-fitting unit 200 are arranged opposite to each other, and the rolling unit 300 is located between the feeding unit 100 and the snap-fitting unit 200; the feeding unit 100 is used to push U-shaped steels 400 with snaps to the snap-fitting unit 200 in sequence, the snap-fitting unit 200 is used to snap-fit ​​and position and press two adjacent U-shaped steels 400, and the rolling unit 300 is used to tighten the two snap-fitted U-shaped steels 400 and then roll and fix them.

[0021] It should be noted that the feeding unit 100 can continuously introduce the U-shaped steel 400 from the previous process, and adjust the posture of the U-shaped steel 400 one by one and accurately position and push it to the buckle unit 200. The buckle unit 200 can continuously receive the U-shaped steel 400 and dock with another U-shaped steel 400 from the feeding unit 100 in a specific direction and posture to achieve the buckle connection of the two U-shaped steels 400. The buckle unit 200 can tighten and clamp the two U-shaped steels 400 after the buckle connection. The entire design scheme uses three units that are arranged in sequence and closely connected to complete the feeding, buckling and rolling operations of the U-shaped steel 400, which simplifies the drawing and pressing process of the multi-cavity plate, improves the production efficiency of the multi-cavity plate, and meets the needs of industrialized and large-scale production of the multi-cavity plate.

[0022] Based on the above embodiments, Figure 1 , Figure 2 , Figure 5 As shown, further, the feeding unit 100 includes a straight push module 110, a flip module 120 and a horizontal push module 130; the straight push module 110 is used to move the U-shaped steel 400 from the outside, the flip module 120 is used to rotate the U-shaped steel 400 so that its bottom faces the buckle unit 200, and the horizontal push module 130 is used to push the U-shaped steel 400 to the buckle unit 200. In this embodiment, the feeding action is divided into three steps: workpiece introduction, posture adjustment and precise pushing, which can accurately position and adjust the posture before pushing the workpiece to the buckle unit 200, and can introduce the workpieces one by one, seamlessly connected with the upstream feeding equipment.

[0023] It should be noted that the straight push module 110, the flip module 120 and the horizontal push module 130 can be arranged in a superimposed manner, that is, the flip module 120 is arranged on the horizontal push module 130, and the straight push module 110 is arranged on the flip module 120. This design scheme can ensure the precise positioning of the U-shaped steel 400 in positioning and adjusting the posture, and avoid multiple position docking. Optionally, the straight push module 110, the flip module 120 and the horizontal push module 130 can also be arranged independently, that is, the straight push module 110 introduces the U-shaped steel 400 to the flip module 120, the flip module 120 flips the U-shaped steel 400 and places it on the horizontal push module 130, and the horizontal push module 130 independently pushes the U-shaped steel 400 to the buckle unit 200. Although this design scheme increases the docking and positioning process of multiple modules, it can reduce the structural complexity of the equipment and reduce the power consumption of the equipment.

[0024] Based on any of the above embodiments, Figure 1 , Figure 2 , Figure 5 As shown, further, the direct push module 110 includes multiple groups of rollers arranged side by side and clamping the wing plates of the U-shaped steel 400, and the rollers can move the U-shaped steel 400 by rotating. In this embodiment, the rollers arranged side by side and clamping the U-shaped steel 400 can use their friction to smoothly move the U-shaped steel 400, so as to achieve the purpose of introducing the workpiece and accurately positioning. Specifically, two groups of rollers arranged side by side can be set, and the two groups of rollers respectively clamp the wing plates of the U-shaped steel 400, and the U-shaped steel 400 is smoothly transported by the rotation of the rollers.

[0025] It should be emphasized that a support wheel 500 is provided on the top of the direct-push module 110. On the one hand, it is conducive to supporting the U-shaped steel 400 and reducing the friction of the U-shaped steel 400 during movement. On the other hand, it plays a positioning role, determining the angle and position of the U-shaped steel 400 on the direct-push module 110, so as to achieve precise positioning and locking with the previous U-shaped steel 400.

[0026] Based on any of the above embodiments, Figure 3 , Figure 5As shown, further, the buckling unit 200 includes a base 210 and a suction cup 220; the base 210 is used to fix the bottom plate on which the U-shaped steel 400 is placed, and the base 210 can pull the U-shaped steel 400 to move away from the feeding unit 100; the suction cup 220 is arranged relatively, and can increase the distance between the two wing plates by adsorbing the wing plates of the U-shaped steel 400. In this embodiment, the relatively arranged suction cups 220 adsorb the two wing plates of the U-shaped steel 400 to increase the distance between the two, that is, expand the opening of the U-shaped steel 400, so as to facilitate the alignment of the U-shaped steel 400 with the next U-shaped steel 400 from the feeding unit 100, and then push the two wing plates to reduce the distance between the two, that is, reset the opening of the U-shaped steel 400 to achieve the compression of the two U-shaped steels 400, and when the feeding unit 100 returns to the initial position, the U-shaped steel 400 that arrives later is slightly tightened so that the two U-shaped steels 400 are initially buckled.

[0027] It should be noted that the base 210 pulls the U-shaped steel 400 to move away from the feeding unit 100 in order to achieve the buckling and rolling of multiple U-shaped steels 400 one by one, and finally buckle and roll a specific number of U-shaped steels 400 to form a multi-cavity plate.

[0028] Figure 6 A schematic diagram of the drawing and pressing process of the drawing and pressing forming equipment for the thin-walled light steel multi-cavity plate provided by the present invention, Figure 7 The cross-sectional view of a multi-cavity plate produced by the drawing and pressing forming equipment of the thin-walled light steel multi-cavity plate provided by the present invention is shown in FIG. Figure 4~Figure 7 As shown, further, the rolling unit 300 includes a pulling roller 310 and a squeezing roller 320; the pulling roller 310 pulls the U-shaped steel 400 to make the two adjacent U-shaped steels 400 buckle together, and the squeezing roller 320 rolls and fixes the two adjacent U-shaped steels 400. In this embodiment, the pulling roller 310 can make the two adjacent U-shaped steels 400 achieve a tighter buckling connection by pulling after buckling, and the squeezing roller 320 rolls and presses the two buckled U-shaped steels 400 at their buckling positions into a tighter fixed connection.

[0029] It should be emphasized that the integral base of the rolling unit 300 should be arranged between the feeding unit 100 and the fastening unit 200, and the pulling roller 310 and the squeezing roller 320 can move back and forth on the base along the length direction of the U-shaped steel 400. The pulling roller 310 tightens the adjacent U-shaped steel 400 during the movement, and the squeezing roller 320 rolls and fixes the tightened U-shaped steel 400.

[0030] Specifically, during one movement of the pulling roller 310, the pulling roller 310 first completes the tensioning of two adjacent and interlocking U-shaped steels 400, and the squeezing roller 320 rolls and fixes the two tightened U-shaped steels 400 during one movement. Therefore, the pulling roller 310 and the squeezing roller 320 can be integrally arranged on a mobile platform, and the pulling roller 310 completes the tensioning process when the mobile platform moves one process, and the squeezing roller 320 completes the rolling and fixing process during the return movement of the mobile platform. And during the return movement, the tensioning process may be repeated or not. Alternatively, the pulling roller 310 and the squeezing roller 320 may also be separately arranged and independently moved.

[0031] Based on any of the above embodiments, Figure 4 , Figure 5 As shown, the rolling unit 300 further includes a riveting roller (not marked); the riveting roller is used to rivet and fix the two adjacent U-shaped steels 400 at the mutually clamped position. In this embodiment, following the previous rolling process, the riveting roller can perform rivet pressing and fixing on the basis of buckling and rolling, further improving the connection strength of the two adjacent U-shaped steels 400.

[0032] It should be noted that the installation position of the riveting roller is the same as that of the squeezing roller 320 , and some of the squeezing rollers 320 may be replaced by riveting rollers, or all of the squeezing rollers 320 may be set as riveting rollers.

[0033] On the basis of any of the above embodiments, further, point-shaped, strip-shaped and / or wavy-shaped rivets are arranged on the circumferential surface of the riveting roller. In this embodiment, the point-shaped rivets are simple to set and have a small riveting load, and the riveting strength can be improved by setting multiple rivet points; the strip-shaped rivets can keep the platform operating smoothly during the rolling process, and the larger contact surface of the anchor point ensures a more stable riveting effect; the wavy-shaped rivets not only have the advantages of a smooth riveting process and a larger contact surface, but also can use the wave crest and trough structure of the wavy rivets to increase the effective load of the final product in all directions in the use occasion.

[0034] A method for forming a thin-walled light steel multi-cavity plate by drawing and pressing, such as Figure 5 , Figure 6 As shown, the following steps are included: Step 1, the feeding unit 100 pushes the U-shaped steel 400 with the buckle to the buckling unit 200 in sequence; Step 2, the buckling unit 200 buckles two adjacent U-shaped steels 400; Step 3, the rolling unit 300 tightens the two buckled U-shaped steels 400 and then rolls them to fix them.

[0035] Based on the above-mentioned drawing and pressing forming method, Figure 1 , Figure 2As shown, further, in step 1, the direct push module 110 moves the U-shaped steel 400 from the outside, the flip module 120 rotates the U-shaped steel 400 so that its bottom faces the buckle unit 200, and the horizontal push module 130 pushes the U-shaped steel 400 to the buckle unit 200; in step 2, first, the suction cup 220 absorbs the two wing plates of the first U-shaped steel 400 on the buckle unit 200 to adjust the distance between the two wing plates, and the horizontal push module 130 pushes the second U-shaped steel 400 on the feeding unit 100 to the first The first U-shaped steel 400 is sandwiched between two wing plates of the U-shaped steel 400; secondly, the suction cup 220 absorbs the two wing plates of the first U-shaped steel 400 on the buckling unit 200 and reduces the distance between the two wing plates, so that the two wing plates of the first U-shaped steel 400 clamp the bottom plate buckle of the second U-shaped steel 400; finally, the horizontal push module 130 returns to the initial position; in step 3, the pulling roller 310 pulls the U-shaped steel 400 to buckle the two adjacent U-shaped steels 400, and the squeezing roller 320 rolls and fixes the two adjacent U-shaped steels 400. In this embodiment, the operation of the U-shaped steel 400 in the three procedures of feeding, buckling and rolling is refined through specific steps, which ensures the effectiveness, reliability and high efficiency of using the U-shaped steel 400 to make the multi-cavity plate.

[0036] A method for forming a thin-walled light steel multi-cavity plate by drawing and pressing, such as Figure 5 , Figure 6 As shown, the following steps are included: In step 1, the feeding unit 100 pushes the U-shaped steel 400 with the buckle to the buckling unit 200 in sequence; in step 2, the buckling unit 200 buckles two adjacent U-shaped steels 400; in step 3, the rolling unit 300 tightens the two buckled U-shaped steels 400 and rolls them to fix them; in step 4, the rolling unit 300 rolls and rivets the two U-shaped steels 400 that are rolled and fixed. 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 have various modifications and variations. Any changes, modifications, substitutions and variations made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

[0037] In the description of the present invention, it is necessary to understand that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the present invention, unless otherwise clearly stipulated and limited, for example, it can be a fixed connection, a detachable connection, or an integrated one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A drawing and pressing device for thin-walled light steel multi-cavity panels, characterized in that: Comprising a feeding unit (100), a buckling unit (200) and a rolling unit (300); the feeding unit (100) and the buckling unit (200) are arranged opposite to each other, and the rolling unit (300) is located between the feeding unit (100) and the buckling unit (200); The feeding unit (100) is used to push the U-shaped steels (400) with buckles to the buckling unit (200) in sequence, the buckling unit (200) is used to buckle and position two adjacent U-shaped steels (400), and the rolling unit (300) is used to tighten the two buckled U-shaped steels (400) and then roll and fix them.

2. The drawing and pressing forming equipment of thin-walled light steel multi-cavity plate according to claim 1 is characterized in that: The feeding unit (100) comprises a straight-pushing module (110), a flipping module (120) and a horizontal-pushing module (130); The straight-push module (110) is used to move the U-shaped steel (400) in from the outside, the flip module (120) is used to rotate the U-shaped steel (400) so that its bottom faces the buckle unit (200), and the horizontal-push module (130) is used to push the U-shaped steel (400) into the buckle unit (200).

3. The drawing and pressing forming equipment of thin-walled light steel multi-cavity plate according to claim 2 is characterized in that: The direct push module (110) comprises a plurality of groups of rollers arranged side by side and clamping the wing plates of the U-shaped steel (400), and the rollers are capable of moving the U-shaped steel (400) by rotating.

4. The drawing and pressing forming equipment of thin-walled light steel multi-cavity plate according to claim 1 is characterized in that: The buckling unit (200) comprises a base (210) and a suction cup (220); the base (210) is used to fix a bottom plate on which the U-shaped steel (400) is placed, and the base (210) can pull the U-shaped steel (400) to move in a direction away from the feeding unit (100); the suction cup (220) is arranged relatively to each other and can adjust the distance between the two wing plates by adsorbing the wing plates of the U-shaped steel (400).

5. The drawing and pressing forming equipment of thin-walled light steel multi-cavity plate according to claim 1 is characterized in that: The rolling unit (300) comprises a pulling roller (310) and a squeezing roller (320); the pulling roller (310) pulls the U-shaped steels (400) to allow two adjacent U-shaped steels (400) to be buckled, and the squeezing roller (320) rolls and fixes the two adjacent U-shaped steels (400).

6. The drawing and pressing forming equipment of thin-walled light steel multi-cavity plate according to claim 5 is characterized in that: The rolling unit (300) further comprises a riveting roller; the riveting roller is used to rivet and fix two adjacent U-shaped steels (400) at the mutually clamped position.

7. The drawing and pressing forming equipment of thin-walled light steel multi-cavity plate according to claim 6 is characterized in that: The circumferential surface of the riveting roller is provided with point-shaped, strip-shaped and / or wavy-shaped rivets.

8. A method for drawing and pressing a thin-walled light steel multi-cavity plate, characterized in that: The following steps are involved: Step 1, the feeding unit (100) pushes the U-shaped steel (400) with buckles to the buckling unit (200) in sequence; Step 2, the fastening unit (200) fastens two adjacent U-shaped steels (400); Step 3: The rolling unit (300) tightens the two U-shaped steels (400) that are fastened together and then rolls and fixes them.

9. The method for drawing and pressing a thin-walled light steel multi-cavity plate according to claim 8, characterized in that: In step 1, the straight-pushing module (110) moves the U-shaped steel (400) in from the outside, the flipping module (120) rotates the U-shaped steel (400) so that its bottom faces the locking unit (200), and the horizontal-pushing module (130) pushes the U-shaped steel (400) into the locking unit (200); In step 2, first, the suction cup (220) absorbs the two wing plates of the first U-shaped steel (400) on the buckling unit (200) to increase the distance between the two wing plates, and the horizontal pushing module (130) pushes the second U-shaped steel (400) on the feeding unit (100) between the two wing plates of the first U-shaped steel (400); secondly, the suction cup (220) absorbs the two wing plates of the first U-shaped steel (400) on the buckling unit (200) and reduces the distance between the two wing plates, so that the two wing plates of the first U-shaped steel (400) clamp the bottom plate buckle of the second U-shaped steel (400); finally, the horizontal pushing module (130) returns to the initial position; In step 3, the pulling roller (310) pulls the U-shaped steel (400) so that two adjacent U-shaped steels (400) are buckled together, and the squeezing roller (320) rolls and fixes the two adjacent U-shaped steels (400).

10. A method for drawing and pressing a thin-walled light steel multi-cavity plate, characterized in that: The following steps are involved: Step 1, the feeding unit (100) pushes the U-shaped steel (400) with buckles to the buckling unit (200) in sequence; Step 2, the fastening unit (200) fastens two adjacent U-shaped steels (400); Step 3, the rolling unit (300) tightens the two U-shaped steels (400) that are fastened together and then rolls and fixes them; Step 4: The rolling unit (300) rolls and rivets the two U-shaped steels (400) that are fixed by rolling.

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