Full-automatic cold roll forming production equipment and production method

Abstract

The invention relates to the technical field of cold roll section steel production, and discloses full-automatic cold roll forming production equipment and method.The production equipment comprises forming roller assemblies, a plurality of forming roller assemblies are used for machining a round pipe into a square pipe, and a hollow round wheel is fixedly installed on one forming roller assembly. Therefore, no matter the roller meets a bulge or a recess on the square tube, the roller actively pushes the movable plate to be far away from the square tube when the roller is far away from the square tube through the special-shaped rack plate, or the special-shaped rack plate drives the strip-shaped rack plate to be far away from the square tube through the gear when the special-shaped rack plate moves towards the square tube, so that the movable plate is pushed to be far away from the square tube through the strip-shaped rack plate; the movable plate is limited to only move towards one direction, so that a unified threshold value is set through the monitoring assembly to judge whether the displacement of the movable plate is qualified or not, when the displacement exceeds the threshold value, it can be considered that the square pipe protrudes or sinks at the position, and therefore the judgment logic is simplified.

Description

Technical Field

[0001] The invention relates to the technical field of cold-bent steel production, and in particular to fully automatic cold-bending production equipment and a production method. Background Art

[0002] The fully automatic cold-bending production equipment is a highly efficient and precise metal processing equipment. It processes metal sheets or strips into profiles of various cross-sectional shapes through a continuous cold-bending process. For example, in the construction field, it processes round steel pipes into square steel pipes by rolling. This not only improves the material utilization and processing efficiency, but also enhances the structural stability of the product and meets specific application requirements.

[0003] In the cold roll forming process, the offset of the forming roller assembly during the production process will cause bulges or depressions on the outer wall of the square tube, thus affecting its shape accuracy and dimensional stability. Therefore, the existing fully automatic cold roll forming production equipment is usually equipped with a straightening machine to perform subsequent straightening treatment on the square tube. However, to ensure the straightening effect and optimize the parameters of the automatic cold roll forming production equipment, the key is to accurately detect whether the shape of the square tube after forming meets the standard and to identify the main cause of the problem.

[0004] At present, the main method for automatic cold-bending forming production equipment to detect square tubes after forming is to install rollers at the bottom of the bracket. These rollers are in contact with the four sides of the square tube. When the rollers encounter a protrusion, the movable plate will rise; on the contrary, when encountering a depression, the movable plate will fall. By measuring the rising and falling distances of the movable plate, the flatness of each side of the square tube can be judged. However, the judgment logic of this method sets a baseline and sets a threshold line above and below the baseline, that is, "baseline + double threshold". During the detection process, it is necessary not only to identify whether the movable plate rises or falls, but also to judge the flatness of the square tube in combination with the specific displacement amplitude, which increases the complexity of the judgment logic, especially in rapid and continuous detection. Based on this, the present invention purposely provides a fully automatic cold-bending forming production equipment and production method that uses a unified threshold to reflect the displacement of the movable plate, thereby simplifying the judgment logic of whether the produced molded square tube is qualified.

[0005] The purpose of the present invention is to provide a fully automatic cold-bending forming production equipment and a production method to solve the technical problems in the prior art in view of the deficiencies in the prior art.

[0006] The purpose of the present invention can be achieved by the following technical solutions: A fully automatic cold roll forming production equipment, comprising: A forming roller assembly, a straightening machine is arranged on one side of the multiple forming roller assemblies, and the multiple forming roller assemblies are used to process round tubes into square tubes. A hollow round wheel is fixedly installed on the forming roller assembly corresponding to the straightening machine. The square tube passes through the hollow round wheel and enters the straightening machine. Four bearing plates driven by the driving assembly to move are slidably arranged on the hollow round wheel, and each bearing plate corresponds to one side of the square tube. A plurality of detection components arranged linearly at equal intervals are arranged on the bearing plate. The detection component includes a bracket, a moving plate, a special-shaped rack plate, a strip-shaped rack plate, a gear and a monitoring component. The bracket is fixedly installed on the bearing plate, and a fixed plate is fixedly installed on it. The special-shaped rack plate and the strip-shaped rack plate are both slidably installed. The gear is rotatably installed in the bracket, and the two always move in opposite directions. The gear is rotatably installed in the bracket, and is located between the special-shaped rack plate and the bar-shaped rack plate, and is meshed with the special-shaped rack plate and the bar-shaped rack plate. The special-shaped rack plate is connected to the fixed plate through a second spring, and a roller is rotatably installed at its bottom, and the roller contacts a side of the square tube facing the bearing plate. The moving plate is slidably installed on the bracket, and is connected to the bearing plate through a first spring. The elastic force of the first spring is less than the elastic force of the second spring. The monitoring component is fixedly installed on the bearing plate, and is used to monitor the displacement of the moving plate, and is connected to the controller. When the displacement of the moving plate exceeds the threshold of the monitoring component, the surface of the corresponding roller on the square tube is determined to be unqualified. When the roller abuts against the flat part of the square tube, the first spring pushes the movable plate to abut against the fixed plate, and the tops of the special-shaped rack plate and the strip-shaped rack plate are close to the bottom of the movable plate; when the roller moves to the protrusion of the square tube, the special-shaped rack plate rises and pushes the movable plate away from the square tube; when the roller moves to the concave part of the square tube, the special-shaped rack plate descends and drives the strip-shaped rack plate to rise through the gear and pushes the movable plate away from the square tube.

[0007] As a further solution of the present invention: the detection component also includes a first pressure sensor and a second pressure sensor, both of which are connected to the controller, the first pressure sensor is fixedly mounted on the special-shaped rack plate, when the special-shaped rack plate pushes the movable plate to move, the first pressure sensor abuts the movable plate and responds, the second pressure sensor is fixedly mounted on the bar-shaped rack plate, when the bar-shaped rack plate pushes the movable plate to move, the second pressure sensor abuts the movable plate and responds, when the monitoring component monitors that the displacement of the movable plate exceeds a threshold value, when the first pressure sensor responds, it is determined that the surface convexity of the corresponding roller on the square tube is unqualified; when the second pressure sensor responds, it is determined that the surface concaveness of the corresponding roller on the square tube is unqualified.

[0008] As a further solution of the present invention: a limit block is fixedly installed at the bottom end of the bracket, and the limit block is abutted and cooperated with both ends of the special-shaped rack plate, and it limits the maximum displacement of the special-shaped rack plate, so that the maximum displacement of the special-shaped rack plate is not greater than the maximum distance between the monitoring component and the movable plate.

[0009] As a further solution of the present invention: two symmetrically arranged guide frames are fixedly mounted on each bearing plate, and the two guide frames are slidably plugged into the hollow round wheel.

[0010] As a further solution of the present invention: when the special-shaped rack plate moves to the farthest distance from the square tube, a gap exists between the strip-shaped rack plate and the surface of the square tube.

[0011] As a further solution of the present invention: the driving assembly includes a reciprocating cylinder and a synchronization assembly, the reciprocating cylinder is fixedly mounted on the hollow circular wheel, and its movable end is fixedly connected to a supporting plate, when the reciprocating cylinder contracts, it drives the supporting plate to move in a direction away from the axis of the hollow circular wheel, and the supporting plate drives other supporting plates to expand synchronously through the synchronization assembly.

[0012] As a further solution of the present invention: the synchronization component includes a circular ring, an inclined groove, a pulley and a straight groove, the circular ring is rotatably installed in the hollow circular wheel, four straight grooves are opened on the hollow circular wheel, each straight groove has a corresponding inclined groove, the inclined grooves are opened on the circular ring, and they are inclinedly arranged, and a pulley is slidably installed in each straight groove, one end of the pulley is fixedly connected to the bearing plate, and the other end thereof is slidably connected to the inclined groove.

[0013] A fully automatic cold roll forming production method, the method is applied to the fully automatic cold roll forming production equipment as described above, the method comprises the following steps: Step S1: Processing a round tube into a square tube through a plurality of forming roller assemblies, and driving four bearing plates to expand outwards through a driving assembly, so that the square tube passes between the four bearing plates; Step S2: Then the driving assembly drives the four bearing plates to contract, so that the roller abuts against the outer wall of the square tube, so that the special-shaped rack plate moves and compresses the second spring, and the second spring drives the bar-shaped rack plate to move in the opposite direction through the gear, until the special-shaped rack plate and the bar-shaped rack plate are both away from the moving plate, and the first spring pushes the moving plate to abut against the fixed plate. At this time, the detection assembly is in the initial state; Step S3: Then, the multiple forming roller assemblies continue to process the round tube and convey the square tube, and the roller rolls on the square tube; Step S4: When the roller moves to the raised part of the square tube, the special-shaped rack plate moves to push the movable plate away from the square tube. When the roller moves to the sunken part of the square tube, the special-shaped rack plate moves through the gear to drive the bar-shaped rack plate to push the movable plate away from the square tube. When the displacement of the movable plate exceeds the threshold of the monitoring component, it is determined that the surface of the square tube corresponding to the roller is unqualified. Step S5: According to the monitoring result of the monitoring component, the technician adjusts the components on the forming roller assembly and the components on the straightening machine.

[0014] Beneficial effects of the present invention: 1. In the present invention, by adding gears and bar-shaped rack plates, no matter the roller encounters a bulge or depression on the square tube, it can either actively push the movable plate away from the square tube through the special-shaped rack plate when it moves away from the square tube, or when the special-shaped rack plate moves toward the square tube, it can drive the bar-shaped rack plate away from the square tube through the gear, thereby pushing the movable plate away from the square tube through the bar-shaped rack plate, which limits the movable plate to move in only one direction, but the size of the displacement will be different. In this way, a unified threshold is set by the monitoring component to judge whether the displacement of the movable plate is qualified. When the displacement exceeds the threshold, it can be considered that there is a bulge or depression problem in the square tube at this position, thereby simplifying the judgment logic; 2. In the present invention, when the monitoring component monitors that the displacement of the moving plate exceeds the threshold value, it means that there is a problem of convexity or concaveness in the position corresponding to the roller of the square tube, and when the first pressure sensor responds, it means that the special-shaped rack plate pushes the moving plate to move, and at this time, it can be determined that the convexity of the surface corresponding to the roller on the square tube is unqualified; and when the second pressure sensor responds, it means that the bar-shaped rack plate pushes the moving plate to move, and then it is determined that the concaveness of the surface corresponding to the roller on the square tube is unqualified, thus avoiding the need to calculate the distance between the moving plate and the reference line in the traditional detection process, and judging the specific situation of the square tube surface according to the positive and negative values ​​of the distance, resulting in cumbersome judgment logic. 3. In the present invention, the limit block is provided to limit the maximum displacement of the special-shaped rack plate, and the maximum displacement of the special-shaped rack plate is not greater than the maximum distance between the monitoring component and the movable plate, thereby avoiding the situation in which the special-shaped rack plate drives the movable plate to move toward the monitoring component, causing the movable plate to collide with the monitoring component. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below in conjunction with the accompanying drawings.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the load-bearing plate in the present invention; Figure 3 It is a schematic diagram of the structure of the detection component in the present invention; Figure 4 It is a schematic diagram of the structure of the bracket in the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the bracket in the present invention; Figure 6 This is a schematic diagram of the top structure of the special-shaped rack plate and the strip-shaped rack plate in the present invention. Figure 7 It is a schematic diagram of the structure in which the special-shaped rack plate in the present invention pushes the moving plate to rise; Figure 8 It is a schematic diagram of the structure in which the bar-shaped rack plate pushes the moving plate to rise in the present invention; Fig. 9 It is a schematic diagram of the structure of the ring in the present invention; Fig.10 It is a structural schematic diagram of the straight slot in the present invention; Fig.11 It is a schematic diagram of the synchronous movement of four bearing plates in the present invention.

[0017] In the figure: 1. forming roller assembly; 2. round tube; 3. square tube; 4. hollow round wheel; 5. reciprocating cylinder; 6. load-bearing plate; 601. guide frame; 7. detection assembly; 8. bracket; 9. moving plate; 10. first spring; 11. special-shaped rack plate; 1101. first pressure sensor; 12. roller; 13. bar-shaped rack plate; 1301. second pressure sensor; 14. gear; 15. fixed plate; 16. second spring; 17. limit block; 18. monitoring assembly; 19. circular ring; 20. inclined groove; 21. pulley; 22. straight groove. DETAILED DESCRIPTION

[0018] The following will be combined with the 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 described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the 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.

[0019] See also Figure 1-Figure 11 As shown, the present invention is a fully automatic cold-bending forming production equipment, comprising: A forming roller assembly 1, a straightening machine is arranged on one side of the plurality of forming roller assemblies 1, and the plurality of forming roller assemblies 1 are used to process the round tube 2 into the square tube 3, a hollow round wheel 4 is fixedly installed on the forming roller assembly 1 corresponding to the straightening machine, the square tube 3 passes through the hollow round wheel 4 and enters the straightening machine, four bearing plates 6 driven to move by the driving assembly are slidably arranged on the hollow round wheel 4, and each bearing plate 6 corresponds to one side of the square tube 3, a plurality of detection components 7 arranged linearly at equal intervals are arranged on the bearing plate 6, the detection component 7 includes a bracket 8, a moving plate 9, a special-shaped rack plate 11, a strip-shaped rack plate 13, a gear 14 and a monitoring component 18, the bracket 8 is fixedly installed on the bearing plate 6, and a fixed plate 15 is fixedly installed thereon, and the special-shaped rack plate 11 and the strip-shaped rack plate 13 are both slidably installed in the bracket 8 , and the two always move in opposite directions, the gear 14 is rotatably installed in the bracket 8, which is located between the special-shaped rack plate 11 and the bar-shaped rack plate 13, and it is meshed with the special-shaped rack plate 11 and the bar-shaped rack plate 13, the special-shaped rack plate 11 is connected to the fixed plate 15 through the second spring 16, and a roller 12 is rotatably installed at its bottom, and the roller 12 contacts the side of the square tube 3 facing the bearing plate 6, the moving plate 9 is slidably installed on the bracket 8, and it is connected to the bearing plate 6 through the first spring 10, the elastic force of the first spring 10 is less than the elastic force of the second spring 16, the monitoring component 18 is fixedly installed on the bearing plate 6, which is used to monitor the displacement of the moving plate 9, and it is connected to the controller, when the displacement of the moving plate 9 exceeds the threshold of the monitoring component 18, it is determined that the surface of the square tube 3 corresponding to the roller 12 is unqualified; When the roller 12 abuts against the flat part of the square tube 3, the first spring 10 pushes the movable plate 9 to abut against the fixed plate 15, and the tops of the special-shaped rack plate 11 and the bar-shaped rack plate 13 are close to the bottom of the movable plate 9; when the roller 12 moves to the protrusion of the square tube 3, the special-shaped rack plate 11 rises and pushes the movable plate 9 away from the square tube 3; when the roller 12 moves to the concave part of the square tube 3, the special-shaped rack plate 11 descends and drives the bar-shaped rack plate 13 to rise through the gear 14, pushing the movable plate 9 away from the square tube 3.

[0020] In one case of this embodiment, it should be noted that the forming roller assembly 1, the monitoring assembly 18, the straightening machine and the controller described in the present invention are all prior arts, and the present invention does not improve them. Therefore, it is not necessary to disclose their specific mechanical structures and circuit structures, and it does not affect the integrity of the present invention. Working principle of the present invention: The processing of multiple forming roller assemblies 1 will gradually transform the round tube 2 into a square tube 3, and after the square tube 3 comes out from the outlet end of the last forming roller assembly 1, the following description is based on Figure 1The top surface of the square tube 3 is described from a basic perspective. The roller 12 will abut against the square tube 3. The special-shaped rack plate 11 rises and compresses the second spring 16, and it drives the bar-shaped rack plate 13 to move in the opposite direction through the gear 14, until the top ends of the special-shaped rack plate 11 and the bar-shaped rack plate 13 are close to the bottom of the moving plate 9. At this time, the first spring 10 pushes the moving plate 9 to abut against the fixed plate 15. At this time, the state of the entire detection assembly 7 is as follows: Figure 3 , Figure 5 and Figure 6 As shown, the roller 12 is rolling on the flat surface of the square tube 3, and the position of the moving plate 9 remains unchanged in this state; When the square tube 3 continues to be produced, the roller 12 will roll on the surface of the square tube 3. Figure 7 As shown in the example, when the roller 12 moves to the protrusion of the square tube 3, the special-shaped rack plate 11 rises and pushes the moving plate 9 away from the square tube 3. Figure 8 As shown in the figure, for example, when the roller 12 moves to the concave part of the square tube 3, since the elastic force of the second spring 16 is greater than the elastic force of the first spring 10, the second spring 16 will push the special-shaped rack plate 11 down, and the special-shaped rack plate 11 drives the bar-shaped rack plate 13 to rise through the gear 14, and the moving plate 9 is away from the square tube 3. When the displacement of the moving plate 9 exceeds the threshold of the monitoring component 18, it is determined that the surface of the square tube 3 corresponding to the roller 12 is unqualified, so that the controller immediately marks it. In this way, no matter whether the roller 12 encounters a convexity or a concave part on the square tube 3, the moving plate 9 will only move in the direction away from the square tube 3, but the size of the displacement will be different. In this way, only a unified threshold can be set to determine whether the displacement of the moving plate 9 is qualified, thereby simplifying the judgment logic; In addition, each supporting plate 6 is provided with a plurality of detection components 7, which can more precisely reflect which area on the square tube 3 has a problem, thereby enabling the technicians to directly adjust the module of the forming roller assembly 1 that causes the problem and adjust the straightening machine.

[0021] like Figure 3-Figure 8 As shown, as a preferred embodiment of the present invention, the detection component 7 also includes a first pressure sensor 1101 and a second pressure sensor 1301. The first pressure sensor 1101 and the second pressure sensor 1301 are both connected to the controller. The first pressure sensor 1101 is fixedly mounted on the special-shaped rack plate 11. When the special-shaped rack plate 11 pushes the movable plate 9 to move, the first pressure sensor 1101 abuts against the movable plate 9 and it responds. The second pressure sensor 1301 is fixedly mounted on the bar-shaped rack plate 13. When the bar-shaped rack plate 13 pushes the movable plate 9 to move, the second pressure sensor 1301 abuts against the movable plate 9 and it responds.

[0022] In one case of this embodiment, it should be noted that the first pressure sensor 1101 and the second pressure sensor 1301 described in the present invention are both prior arts, and the present invention does not improve them. Therefore, it is not necessary to disclose their specific mechanical structures and circuit structures, and it does not affect the integrity of the present invention. In actual application of this embodiment, when the monitoring component 18 monitors that the displacement of the movable plate 9 exceeds the threshold value, it means that there is a bulge or depression problem at the position of the square tube 3 corresponding to the roller 12, and when the first pressure sensor 1101 responds, it means that the special-shaped rack plate 11 pushes the movable plate 9 to move. At this time, it can be determined that the bulge of the surface corresponding to the roller 12 on the square tube 3 is unqualified; and when the second pressure sensor 1301 responds, it means that the bar-shaped rack plate 13 pushes the movable plate 9 to move, then the depression of the surface corresponding to the roller 12 on the square tube 3 is determined to be unqualified. This avoids the need to calculate the distance between the movable plate 9 and the baseline in the traditional detection process, and judge the specific surface condition of the square tube 3 based on the positive and negative values ​​of the distance, resulting in cumbersome judgment logic.

[0023] like Figure 3-Figure 8 As shown, as a preferred embodiment of the present invention, a limit block 17 is fixedly installed at the bottom end of the bracket 8, and the limit block 17 is abutted against the two ends of the special-shaped rack plate 11, and it limits the maximum displacement of the special-shaped rack plate 11, so that the maximum displacement of the special-shaped rack plate 11 is not greater than the maximum distance between the monitoring component 18 and the movable plate 9.

[0024] In actual application, the limit block 17 is set to limit the maximum displacement of the special-shaped rack plate 11, and the maximum displacement of the special-shaped rack plate 11 is not greater than the maximum distance between the monitoring component 18 and the movable plate 9, thereby avoiding the situation in which the special-shaped rack plate 11 drives the movable plate 9 to move toward the monitoring component 18, causing the movable plate 9 to collide with the monitoring component 18.

[0025] like Figure 2 As shown, as a preferred embodiment of the present invention, two symmetrically arranged guide frames 601 are fixedly mounted on each supporting plate 6 , and the two guide frames 601 are slidably inserted into the hollow round wheel 4 .

[0026] In actual application, since the supporting plate 6 is in a suspended state, the two guide frames 601 are provided to guide the direction of movement of the supporting plate 6, ensuring that the supporting plate 6 moves perpendicular to the surface of one side of the square tube 3, thereby avoiding deviation in the monitoring angle.

[0027] like Figure 3-Figure 8 As shown, as a preferred embodiment of the present invention, when the special-shaped rack plate 11 moves to the farthest distance from the square tube 3, there is a gap between the strip-shaped rack plate 13 and the surface of the square tube 3.

[0028] In actual application of this embodiment, when the special-shaped rack plate 11 moves to the closest distance to the monitoring component 18, it means that the special-shaped rack plate 11 drives the bar-shaped rack plate 13 to move in the opposite direction through the gear 14 to the farthest distance. At this time, there is a gap between the bar-shaped rack plate 13 and the surface of the square tube 3, which avoids the situation where the bar-shaped rack plate 13 abuts against the surface of the square tube 3, ensuring that the bar-shaped rack plate 13 does not hinder the movement of the square tube 3.

[0029] like Figure 3-Figure 11 As shown, as a preferred embodiment of the present invention, the driving assembly includes a reciprocating cylinder 5 and a synchronization assembly. The reciprocating cylinder 5 is fixedly mounted on the hollow circular wheel 4, and its movable end is fixedly connected to a supporting plate 6. When the reciprocating cylinder 5 contracts, it drives the supporting plate 6 to move in a direction away from the axis of the hollow circular wheel 4, and the supporting plate 6 drives other supporting plates 6 to expand synchronously through the synchronization assembly.

[0030] In one case of this embodiment, it should be noted that the reciprocating cylinder 5 described in the present invention is the prior art, and the present invention does not improve them. Therefore, there is no need to disclose their specific mechanical structure and circuit structure, which does not affect the integrity of the present invention.

[0031] In actual application of this embodiment, when the roller 12 is not in contact with the surface of the square tube 3, due to the elastic force of the second spring 16, the roller 12 will be away from the movable plate 9. At this time, the reciprocating cylinder 5 will be contracted to drive the bearing plate 6 to move in the direction away from the axis of the hollow round wheel 4, and the four bearing plates 6 will be expanded synchronously through the synchronization component, so that the square tube 3 can pass through the middle of the four bearing plates 6. Then, the reciprocating cylinder 5 will be extended to control the synchronous contraction of the four bearing plates 6, and the roller 12 will be in contact with the surface of the square tube 3. At this time, the reciprocating cylinder 5 continues to Stretch until the detection component 7 is in the initial state, so that not only can the roller 12 be reasonably controlled to abut against the square tube 3, but also when it is necessary to replace the forming roller assembly 1 to change the size of the produced square tube 3, the four supporting plates 6 can be synchronously expanded and contracted to adapt to square tubes 3 of different sizes. It should be noted that when the four supporting plates 6 expand to adapt to square tubes of larger sizes, it is necessary to properly splice extension plates and detection components 7 with the same equal spacing to both sides of the supporting plates 6, so that there are enough rollers 12 contact on all four sides of the square tube 3.

[0032] like Figure 6-Figure 9As shown, as a preferred embodiment of the present invention, the synchronization component includes a ring 19, an inclined groove 20, a pulley 21 and a straight groove 22, the ring 19 is rotatably installed in the hollow round wheel 4, four straight grooves 22 are opened on the hollow round wheel 4, each straight groove 22 has a corresponding inclined groove 20, the inclined grooves 20 are opened on the ring 19, and are arranged obliquely, and a pulley 21 is slidably installed in each straight groove 22, one end of the pulley 21 is fixedly connected to the bearing plate 6, and the other end thereof is slidably connected to the inclined groove 20.

[0033] In practical application, if Figure 7 As shown in the figure, the reciprocating cylinder 5 contracts, which drives the carrier plate 6 to move upward, and the pulley 21 on the carrier plate 6 slides in the straight groove 22, and the carrier plate 6 also slides in the inclined groove 20, thereby driving the ring 19 to rotate counterclockwise, and the rotation of the ring 19 causes the pulleys 21 in other inclined grooves 20 to change their positions, and the change in the position of other pulleys 21 in the inclined grooves 20 will also drive the corresponding carrier plate 6 to make corresponding movements, such as Figures 7 to 9 As shown in the example, such synchronous control avoids the need to adjust the support plates 6 one by one so that each roller 12 abuts against the square tube 3, which causes a waste of time and improves the convenience of device adjustment.

[0034] See also Figure 1-Figure 9 As shown, the present invention is a fully automatic cold roll forming production method, which is applied to a fully automatic cold roll forming production equipment as described in the above embodiment, and the method comprises the following steps: Step S1: Processing a round tube 2 into a square tube 3 through a plurality of forming roller assemblies 1, and driving four bearing plates 6 to expand outwards through a driving assembly, so that the square tube 3 passes between the four bearing plates 6; Step S2: Then the driving assembly drives the four bearing plates 6 to contract, so that the roller 12 abuts against the outer wall of the square tube 3, so that the special-shaped rack plate 11 moves and compresses the second spring 16, and the second spring 16 drives the bar-shaped rack plate 13 to move in the opposite direction through the gear 14, until the special-shaped rack plate 11 and the bar-shaped rack plate 13 are both away from the moving plate 9, and the first spring 10 pushes the moving plate 9 to abut against the fixed plate 15, and the detection assembly 7 is in the initial state at this time; Step S3: Then, the multiple forming roller assemblies 1 continue to process the round tube 2 and convey the square tube 3, and the roller 12 rolls on the square tube 3; Step S4: When the roller 12 moves to the raised part of the square tube 3, the special-shaped rack plate 11 moves to push the movable plate 9 away from the square tube 3. When the roller 12 moves to the recessed part of the square tube 3, the special-shaped rack plate 11 moves through the gear 14 to drive the bar-shaped rack plate 13 to push the movable plate 9 away from the square tube 3. When the displacement of the movable plate 9 exceeds the threshold of the monitoring component 18, it is determined that the surface of the square tube 3 corresponding to the roller 12 is unqualified. Step S5: According to the monitoring result of the monitoring component 18, the technician adjusts the components on the forming roller assembly 1 and the components on the straightening machine.

[0035] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A fully automatic cold roll forming production equipment, characterized in that: include: A forming roller assembly (1), wherein a straightening machine is arranged on one side of the plurality of forming roller assemblies (1), and the plurality of forming roller assemblies (1) are used to process a round tube (2) into a square tube (3). A hollow round wheel (4) is fixedly mounted on the forming roller assembly (1) corresponding to the straightening machine, and the square tube (3) passes through the hollow round wheel (4) and enters the straightening machine. Four bearing plates (6) driven to move by a driving assembly are slidably mounted on the hollow round wheel (4), and each bearing plate (6) corresponds to one side of the square tube (3). A plurality of detection assemblies (7) arranged linearly at equal intervals are arranged on the bearing plate (6), and the detection assembly (7) comprises a bracket (8), a moving plate (9), a special-shaped rack plate (11), a bar-shaped rack plate (13), a gear (14), and a monitoring assembly (18). The bracket (8) is fixedly mounted on the bearing plate (6), and a fixed plate (15) is fixedly mounted on the bearing plate (6). The special-shaped rack plate (11) and the bar-shaped rack plate (13) are both slidably mounted on the bracket (8). ), and the two always move in opposite directions. The gear (14) is rotatably mounted in the bracket (8). It is located between the special-shaped rack plate (11) and the bar-shaped rack plate (13), and it is meshed with the special-shaped rack plate (11) and the bar-shaped rack plate (13). The special-shaped rack plate (11) is connected to the fixed plate (15) through a second spring (16), and a roller (12) is rotatably mounted at the bottom thereof. The roller (12) contacts a side of the square tube (3) facing the bearing plate (6). The movable plate (9) is slidably mounted on the bracket (8) and is connected to the bearing plate (6) via a first spring (10). The elastic force of the first spring (10) is smaller than the elastic force of the second spring (16). The monitoring component (18) is fixedly mounted on the bearing plate (6) and is used to monitor the displacement of the movable plate (9). The monitoring component (18) is connected to the controller. When the displacement of the movable plate (9) exceeds the threshold of the monitoring component (18), the surface of the corresponding roller (12) on the square tube (3) is determined to be unqualified. When the roller (12) abuts against the flat part of the square tube (3), the first spring (10) pushes the movable plate (9) to abut against the fixed plate (15), and the tops of the special-shaped rack plate (11) and the bar-shaped rack plate (13) are close to the bottom of the movable plate (9); when the roller (12) moves to the raised part of the square tube (3), the special-shaped rack plate (11) rises and pushes the movable plate (9) away from the square tube (3); when the roller (12) moves to the recessed part of the square tube (3), the special-shaped rack plate (11) descends and drives the bar-shaped rack plate (13) to rise through the gear (14) and push the movable plate (9) away from the square tube (3).

2. The fully automatic cold roll forming production equipment according to claim 1, characterized in that: The detection assembly (7) further comprises a first pressure sensor (1101) and a second pressure sensor (1301), both of which are connected to the controller. The first pressure sensor (1101) is fixedly mounted on the special-shaped rack plate (11). When the special-shaped rack plate (11) pushes the movable plate (9) to move, the first pressure sensor (1101) abuts against the movable plate (9) and responds. The second pressure sensor (1301) is fixedly mounted on the movable plate (9). The second pressure sensor (1301) is mounted on the bar-shaped rack plate (13). When the bar-shaped rack plate (13) pushes the movable plate (9) to move, the second pressure sensor (1301) abuts against the movable plate (9) and responds. When the monitoring component (18) monitors that the displacement of the movable plate (9) exceeds a threshold value, when the first pressure sensor (1101) responds, it is determined that the surface of the square tube (3) corresponding to the roller (12) is convex and unqualified; when the second pressure sensor (1301) responds, it is determined that the surface of the square tube (3) corresponding to the roller (12) is concave and unqualified.

3. The fully automatic cold roll forming production equipment according to claim 1, characterized in that: A limit block (17) is fixedly mounted on the bottom end of the bracket (8), and the limit block (17) is in abutment with both ends of the special-shaped rack plate (11) and limits the maximum displacement of the special-shaped rack plate (11), so that the maximum displacement of the special-shaped rack plate (11) is not greater than the maximum distance between the monitoring component (18) and the moving plate (9).

4. The fully automatic cold roll forming production equipment according to claim 1, characterized in that: Two symmetrically arranged guide frames (601) are fixedly mounted on each bearing plate (6), and the two guide frames (601) are slidably plugged into the hollow round wheel (4).

5. The fully automatic cold roll forming production equipment according to claim 1, characterized in that: When the special-shaped rack plate (11) moves to the farthest distance from the square tube (3), a gap exists between the strip-shaped rack plate (13) and the surface of the square tube (3).

6. The fully automatic cold roll forming production equipment according to claim 4, characterized in that: The driving assembly comprises a reciprocating cylinder (5) and a synchronous assembly. The reciprocating cylinder (5) is fixedly mounted on the hollow round wheel (4), and its movable end is fixedly connected to a bearing plate (6). When the reciprocating cylinder (5) contracts, it drives the bearing plate (6) to move in a direction away from the axis of the hollow round wheel (4). The bearing plate (6) drives other bearing plates (6) to expand synchronously through the synchronous assembly.

7. The fully automatic cold roll forming production equipment according to claim 6, characterized in that: The synchronous assembly comprises a circular ring (19), an inclined groove (20), a pulley (21) and a straight groove (22); the circular ring (19) is rotatably mounted in the hollow circular wheel (4); four straight grooves (22) are provided on the hollow circular wheel (4); each straight groove (22) has a corresponding inclined groove (20); the inclined grooves (20) are provided on the circular ring (19) and are arranged in an inclined manner; a pulley (21) is slidably mounted in each straight groove (22); one end of the pulley (21) is fixedly connected to the bearing plate (6); and the other end of the pulley (21) is slidably connected to the inclined groove (20).

8. A fully automatic cold roll forming production method, characterized in that: The method is applied to a fully automatic cold roll forming production equipment as described in any one of claims 1 to 7, and the method comprises the following steps: Step S1: processing the round tube (2) into a square tube (3) through a plurality of forming roller assemblies (1), and driving the four bearing plates (6) to expand outwards through the driving assembly, so that the square tube (3) passes between the four bearing plates (6); Step S2: The driving component then drives the four bearing plates (6) to retract, causing the roller (12) to abut against the outer wall of the square tube (3), causing the special-shaped rack plate (11) to move and compress the second spring (16), which drives the bar-shaped rack plate (13) to move in the opposite direction through the gear (14), until the special-shaped rack plate (11) and the bar-shaped rack plate (13) are both away from the movable plate (9), and the first spring (10) pushes the movable plate (9) to abut against the fixed plate (15), at which time the detection component (7) is in the initial state; Step S3: the plurality of forming roller assemblies (1) continue to process the round tube (2) and convey the square tube (3), and at this time the roller (12) rolls on the square tube (3); Step S4: when the roller (12) moves to the raised part of the square tube (3), the special-shaped rack plate (11) moves to push the movable plate (9) away from the square tube (3); when the roller (12) moves to the recessed part of the square tube (3), the special-shaped rack plate (11) moves through the gear (14) to drive the bar-shaped rack plate (13) to push the movable plate (9) away from the square tube (3); when the displacement of the movable plate (9) exceeds the threshold value of the monitoring component (18), it is determined that the surface of the square tube (3) corresponding to the roller (12) is unqualified; Step S5: Based on the monitoring result of the monitoring component (18), the technician adjusts the components on the forming roller component (1) and the components on the straightening machine.

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