Purlin forming machine adjustment device and method

Abstract

The present invention relates to the technical field of purlin production, and in particular to a purlin forming machine adjustment device and method. The device comprises a frame, an upper pressure roller, a lower pressure roller, a folding roller, and an adjustable mounting frame. The frame is provided with an inclination adjustment hole, and a locking limit rod is provided at a corresponding position of the adjustable mounting frame. The locking limit rod is inserted into the inclination adjustment hole, so that the adjustable mounting frame is restricted from adjusting and moving along the inclination direction of the inclination adjustment hole, so that while adjusting the gap between the upper pressure roller and the lower pressure roller, the upper pressure roller simultaneously moves inward laterally. The upper pressure roller is arranged on the adjustable mounting frame, so that by adjusting the position of the adjustable mounting frame and the frame, the spacing between the upper pressure roller and the lower pressure roller can be adjusted to adapt to steel materials of different thickness specifications.

Description

Technical Field

[0001] The invention relates to the technical field of purlin production, and in particular to an adjustment device and method for a purlin forming machine. Background Art

[0002] Purlins are a widely used structural member in steel structure buildings. Purlins are generally gradually bent and formed by multi-pass roller pressing equipment. For example, a Chinese patent with application publication number CN 104028593A discloses a new type of purlin forming device, including a machine base, characterized in that: two transmission boxes are arranged opposite to each other on the machine base and the distance between the two transmission boxes is adjustable on the machine base, the side wall of the transmission box is provided with a plurality of positioning holes, and the roller forming mechanism is detachably mounted on the transmission box through the positioning holes, and the roller forming mechanism includes an upper roller assembly and a lower roller assembly, and the lower roller assembly is connected to a driving mechanism and the driving mechanism is arranged in the transmission box. During the purlin production process, purlins of different thickness specifications are processed, so the processed steel plates have multiple thickness specifications. This equipment is only suitable for the production of steel plates of one thickness and cannot be adjusted. Summary of the invention

[0003] In order to overcome the deficiencies in the prior art, the present invention provides a purlin forming machine adjustment device and method with high precision and convenient adjustment.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the present invention is as follows: a purlin forming machine adjustment device comprises a frame, an upper pressing roller, a lower pressing roller, and a folding roller, the upper pressing roller and the lower pressing roller are arranged up and down, and a gap is formed between the upper pressing roller and the lower pressing roller for the steel plate to pass through, the folding roller is tilted and arranged at the outer sides of the upper pressing roller and the lower pressing roller, and the outer wall surface of one end of the folding roller corresponds to the gap between the upper pressing roller and the lower pressing roller, and is characterized in that: it also includes an adjustable mounting frame, the adjustable mounting frame can be adjustably mounted on the frame, the upper pressing roller can be rotatably arranged on the adjustable mounting frame, at least two parallel inclined adjustment holes are provided on the frame, the inclined adjustment holes are inclined upward toward the inside, and a locking limit rod is provided at a corresponding position of the adjustable mounting frame, the locking limit rod is penetrated in the inclined adjustment hole, so that the adjustable mounting frame is restricted from adjusting and moving along the inclined direction of the inclined adjustment hole, so that when the gap between the upper pressing roller and the lower pressing roller is adjusted, the upper pressing roller simultaneously moves inward laterally.

[0005] Furthermore, the angle between the working surface of the folding roller and the horizontal plane is α, the angle between the tilt adjustment hole and the horizontal plane is β, and the angle relationship between α and β is α+2β=180°.

[0006] Furthermore, the adjustable mounting frame includes a frame body, a spring shaft, and a spring. The upper pressure roller is rotatably mounted on the frame body. The frame body is provided with a through hole. The spring shaft passes through the through hole and is connected to the frame. The spring sleeve is arranged outside the spring shaft and its two ends act on the frame body and the frame respectively.

[0007] Furthermore, the frame includes a limit plate, an adjustment plate, a transverse extension plate, a vertical extension plate, and a reverse roller shaft which are connected in sequence. The through hole is opened on the limit plate, one end of the spring is against the limit plate, and the other end is against the frame. The spring is a compression spring. The locking limit rod is arranged on the adjustment plate. One end of the transverse extension plate is connected to the adjustment plate, and the other end extends inward and is arranged on the end of the transverse extension plate extending downward. The reverse roller shaft is arranged on the vertical extension plate and extends outward. The upper pressure roller is arranged on the reverse roller shaft, so that a bending and clearance space of the steel plate is formed between the folding roller and the upper pressure roller.

[0008] Furthermore, a compression bolt is provided on the transverse extension plate, and the compression bolt is threadedly connected to the transverse extension plate and can be adjusted up and down relative to the transverse extension plate. The frame includes a side support plate, and an adjustment shaft hole is opened on the side support plate. An adjustment shaft is provided in the adjustment shaft hole, and an eccentric wheel is provided in the adjustment shaft sleeve. The eccentric wheel is located above the compression bolt and squeezes the compression bolt. The eccentric wheel squeezes the compression bolt and moves up and down by rotating the adjustment shaft, thereby adjusting the position of the adjustable mounting frame.

[0009] Furthermore, a group of pressing roller mechanisms is formed with a frame, an upper pressing roller and a lower pressing roller. The pressing roller mechanisms are provided with several groups and the pressing roller mechanisms acting on the same side of the steel plate are arranged along the conveying direction of the steel plate. The adjustment shaft holes of the side support plates of each pressing roller mechanism are coaxially arranged. The adjustment shaft passes through the adjustment shaft holes of each pressing roller mechanism to synchronously drive each eccentric wheel to be squeezed toward the corresponding pressure bolt, thereby synchronously adjusting the position of the adjustable mounting frame of each pressing roller mechanism.

[0010] Furthermore, support frames are arranged at the front end and the rear end of the adjustment shaft, the adjustment shaft is rotatably arranged on the support frame, and a locking mechanism is arranged on the support frame, and the locking mechanism is used to lock the rotation angle of the adjustment shaft.

[0011] Furthermore, the eccentric wheel is a circular wheel, an eccentrically arranged hexagonal through hole is arranged inside the circular wheel, and the circular wheel is fixed on the adjustment shaft through the hexagonal through hole.

[0012] A purlin forming machine adjustment method,

[0013] The steel plate is driven to be transported backward from the gap between the upper and lower rollers, and one side of the steel plate extends outward through the gap. Due to the setting of the folding roller, the side of the steel plate extending outward is guided to be folded upward. During the production process, purlins of different thickness specifications are processed, so the processed steel plates have a variety of thickness specifications.

[0014] The gap between the upper pressing roller and the lower pressing roller needs to correspond to the thickness of the steel plate. The upper pressing roller is arranged on an adjustable mounting frame, so the adjustable mounting frame needs to be adjusted. Due to the setting of the tilt adjustment hole and the locking limit rod, the adjustable mounting frame is restricted to move along the tilt direction of the tilt adjustment hole. Therefore, by adjusting the adjustable mounting frame to adjust the adjustment gap between the upper pressing roller and the lower pressing roller, the upper pressing roller simultaneously moves inward laterally. The angle between the folding roller and the horizontal plane is α, the angle between the tilt adjustment hole and the horizontal plane is β, and the angle relationship between α and β is α+2β=180°;

[0015] Therefore, when adjusting the upper pressing roller, the vertical distance from the outer lower end point of the upper pressing roller to the outer wall of the folding roller is equal to the gap height between the upper pressing roller and the lower pressing roller, that is, matching the thickness of the steel plate, ensuring the dimensional accuracy of the product during the equipment adjustment process according to the thickness of the steel plate.

[0016] From the above description of the present invention, it can be seen that compared with the prior art, the present invention provides a purlin forming machine adjustment device and method, wherein the upper pressure roller is arranged on an adjustable mounting frame, so the spacing between the upper pressure roller and the lower pressure roller can be adjusted by adjusting the position of the adjustable mounting frame and the frame to adapt to steel materials of different thickness specifications; due to the limiting effect of the inclined adjustment hole, the upper pressure roller is adjusted in the vertical direction while also being adjusted in the horizontal direction, so when the upper pressure roller is adjusted, the vertical distance from the outer lower end point of the upper pressure roller to the outer wall of the folding roller is equal to the gap height between the upper pressure roller and the lower pressure roller, that is, matching the thickness of the steel plate, ensuring the dimensional accuracy of the product during the equipment adjustment process according to the thickness of the steel plate; the adjustment shaft can synchronously drive the adjustment of each adjustable mounting frame, and the entire row of pressure roller mechanisms can be adjusted at one time, the adjustment is convenient and fast, and the adjustment method of the eccentric wheel combined with the adjustable pressure screw is adopted, and each adjustable mounting frame can be fine-tuned independently with high accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a schematic diagram of the production state of C-shaped purlins provided with an adjustable folding roller by the purlin integrated machine.

[0018] Figure 2 The present invention is a schematic diagram of the production state of Z-shaped purlins provided with an adjustable folding roller by the purlin integrated machine.

[0019] Figure 3 The present invention is a schematic diagram of the production state of the purlin integrated machine equipped with a tapered roller C-shaped purlin.

[0020] Figure 4 The present invention is a schematic diagram of the production state of the purlin integrated machine equipped with a tapered roller Z-shaped purlin.

[0021] Figure 5 The present invention is a schematic diagram of the purlin integrated machine provided with right-angle rollers and C-shaped purlin production status.

[0022] Figure 6 It is a partial schematic side view of the present invention.

[0023] Figure 7 It is a schematic diagram of the adjustable mounting frame and the corresponding mechanism angle of the present invention.

[0024] The symbols in the figure correspond to the following: 1. Frame, 11. First arc limit hole, 12. Second arc limit hole, 13. Tilt adjustment hole, 14. Side support plate, 141. Adjustment shaft hole, 2. Upper pressure roller, 2a. Straight wheel upper pressure roller, 2b. Inclined wheel upper pressure roller, 3. Lower pressure roller, 3a. Straight wheel lower pressure roller, 3b. Inclined wheel lower pressure roller, 4. Folding roller, 41. Upper folding roller, 42. Adjustable folding roller, 421. Rotating shaft, 422. First locking limit rod, 43. Conical roller, 44. Right angle roller, 441. Roller body, 442. Rotating Rotating frame, 421. second locking limit rod, 5. adjustable mounting frame, 51. third locking limit rod, 52. frame body, 521. limit plate, 522. adjustment plate, 523. through hole, 524. horizontal extension plate, 525. vertical extension plate, 526. reverse roller shaft, 53. spring shaft, 54. spring, 55. compression bolt, 56. adjustment shaft, 57. eccentric wheel, 571. hexagonal through hole, 6. driving shaft, 61. transmission mechanism, 7. support frame, 71. locking mechanism, A. upward folding row, B. adjustable folding row. DETAILED DESCRIPTION

[0025] The present invention is further described below through specific implementation modes.

[0026] Reference Figures 1 to 7 As shown, a CZ type purlin integrated machine has a plurality of pressing roller mechanisms, which include a frame 1, an upper pressing roller 2, a lower pressing roller 3, a folding roller 4, an adjustable mounting frame 5, and a driving shaft 6.

[0027] The pressing roller mechanism is arranged into an upward folding row A and an adjustable folding row B arranged on the left and right.

[0028] The upper pressing roller 2 and the lower pressing roller 3 are arranged up and down, and the outer end surface of the upper pressing roller 2 matches the outer end surface of the lower pressing roller 3, so that a gap parallel to the horizontal plane is formed between the upper pressing roller 2 and the lower pressing roller 3, and the gap accommodates the steel plate to pass through.

[0029] The folding roller 4 comprises an upper folding roller 41 , an adjustable folding roller 42 , a tapered roller 43 , and a right-angle roller 44 .

[0030] An upper folding roller 41 is provided on the outer side of the pressing roller mechanism of the upper folding row A. The outer wall surface of one end of the upper folding roller 41 corresponds to the gap between the upper pressing roller 2 and the lower pressing roller 3 and is inclined upward from the end to form an upward folded side of the steel plate. The inclination angle of the upper folding roller 41 of each pressing roller mechanism from the front to the back of the upper folding row A gradually increases.

[0031] An adjustable folding roller 42 is provided on the outside of the roller mechanism for performing the first bending of the side of the steel plate. The outer wall surface of one end of the adjustable folding roller 42 corresponds to the gap between the upper pressing roller 2 and the lower pressing roller 3. The other end is provided with a rotating shaft 421 penetrating from the outer wall. The adjustable folding roller 42 is rotatably provided on the frame 1 through the rotating shaft 421. The frame 1 is provided with a first arc limiting hole 11. A first locking limiting rod 422 is provided at a corresponding position of the middle section of the adjustable folding roller 42. The first arc limiting hole 11 is provided to the frame 1. The center of the corresponding arc coincides with the rotating shaft 421, and the first locking limit rod 422 is arranged in the first arc limit hole 11. The two ends of the first arc limit hole 11 correspond to the upper folding state and the lower folding state, so that the first locking limit rod 422 can be positioned at the two ends of the first arc limit hole 11 to position the upper folding state or the lower folding state of the adjustable folding roller 42, so that the adjustable folding roller 42 can change between the upper folding state of forming an upward folding side edge of the purlin or the lower folding state of forming a downward folding side edge of the steel plate.

[0032] A conical roller 43 is provided on the pressure roller mechanism behind the adjustable folding roller 42, and the tip of the conical roller 43 faces the gap 4 between the corresponding upper pressure roller 2 and the lower pressure roller. The taper of the conical roller 43 corresponding to each pressure roller mechanism of the adjustable folding row B gradually increases from the front to the back in the conveying direction.

[0033] Several groups of pressing roller mechanisms at the end of the adjustable folding row B and the upper folding row A are provided with right-angle rollers 44, and a second arc limit hole 12 is opened on the frame 1. The right-angle roller 44 includes a roller body 441 and a rotating frame 442. The roller body 441 is rotatably installed on the rotating frame 442. A second locking limit rod 421 is provided on the rotating frame 442. Two second locking limit rods 421 are provided on a rotating frame 442. Two second arc limit holes 12 are provided on the corresponding frame 1. The corresponding arc center of the second arc limit hole 12 coincides with the apex of the steel plate angle. The second locking limit rod 421 is arranged in the second arc limit hole 12, so that the right-angle roller 44 is restricted from adjusting and moving along the arc direction of the second arc limit hole 12, that is, rotating around the apex of the steel plate angle.

[0034] The upper pressing roller 2 includes a straight-wheel upper pressing roller 2a and an inclined-wheel upper pressing roller 2b. The pressing roller mechanism of the adjustable folding row B corresponding to the adjustable folding roller 42 and the tapered roller 43 is set as the straight-wheel upper pressing roller 2a, and the pressing roller mechanism outside the upper folding row A corresponding to the upper folding roller 41 is set as the straight-wheel upper pressing roller 2a; the upper pressing roller 2 with a pressing roller mechanism corresponding to the right-angle roller 44 is set as the inclined-wheel upper pressing roller 2b, and the inclined-wheel upper pressing roller 2b is tilted upward toward the inside, so that a bending and clearance space for the steel plate is formed on the outside of the inclined-wheel upper pressing roller 2b.

[0035] The lower pressing roller 3 includes a straight-wheel lower pressing roller 3a and an inclined-wheel lower pressing roller 3b. The pressing roller mechanism of the upper folding row A is set as the straight-wheel lower pressing roller 3a, the pressing roller mechanism of the adjustable folding row B corresponding to the adjustable folding roller 42 and the tapered roller 43 is set as the straight-wheel lower pressing roller 3a, and the pressing roller mechanism of the adjustable folding row B corresponding to the right-angle roller 44 is set as the inclined-wheel lower pressing roller 3b. The inclined-wheel lower pressing roller 3b is tilted downward toward the inside, so that a bending and clearance space for the steel plate is formed on the outside of the inclined-wheel lower pressing roller 3b.

[0036] The plurality of pressing roller mechanisms in front of the upper folding row A and the adjustable folding row B are composed of a straight wheel upper pressing roller 2a and a straight wheel lower pressing roller 3a. The straight wheel design has better pressing force and pulling force, ensuring that the steel plate is driven and transported backward.

[0037] A plurality of driving shafts 6 are provided, and the driving shafts 6 are connected to the power device. Each driving shaft 6 is connected and rotated synchronously through a transmission mechanism 61. The driving shaft 6 is provided on the frame 1 of the pressing roller mechanism of the upper folding row A. The driving shaft 6 passes through and drives the straight wheel lower pressing roller 3a of the pressing roller mechanism of the upper folding row A. In the pressing roller mechanism of the adjustable folding row B which is also the straight wheel lower pressing roller 3a, the driving shaft 6 extends to the adjustable folding row B on the corresponding side and is connected to the straight wheel lower pressing roller 3a, thereby driving the two straight wheel lower pressing rollers 3a to rotate synchronously. This design enables the outer side of the straight wheel lower pressing roller 3a of the adjustable folding row B to have a bending and clearance space for the steel plate, thereby adapting to the production of Z-type purlins.

[0038] The adjustable mounting frame 5 can be adjustably mounted on the frame 1, and the upper pressure roller 2 can be rotatably mounted on the adjustable mounting frame 5. At least two parallel tilt adjustment holes 13 are provided on the frame 1, and the tilt adjustment holes 13 are tilted upward toward the inside. A third locking limit rod 51 is provided at the corresponding position of the adjustable mounting frame 5, and the third locking limit rod 51 is passed through the tilt adjustment hole 13, so that the adjustable mounting frame 5 is restricted from adjusting and moving along the tilt direction of the tilt adjustment hole 13, so that when the gap between the upper pressure roller 2 and the lower pressure roller 3 is adjusted, the upper pressure roller 2 can also move inward laterally at the same time. The angle between the working surface of the folding roller 4 and the horizontal plane is α, the angle between the tilt adjustment hole 13 and the horizontal plane is β, and the angular relationship between α and β is α+2β=180°. Therefore, when aligning the upper pressing roller 2, the vertical distance from the outer lower end point of the upper pressing roller 2 to the outer wall of the folding roller 4 is equal to the gap height between the upper pressing roller 2 and the lower pressing roller 3, that is, matching the thickness of the steel plate, ensuring the dimensional accuracy of the product during the equipment adjustment process according to the thickness of the steel plate.

[0039] The adjustable mounting frame 5 includes a frame body 52, a spring shaft 53, and a spring 54. The frame body 52 includes a limit plate 521 and an adjustment plate 522. A through hole 523 is provided on the limit plate 521. The spring shaft 53 passes through the through hole 523 and is connected to the frame 1. The spring 54 is sleeved outside the spring shaft 53 and its two ends act on the frame 1 and the limit plate 521 respectively. The end of the spring shaft 53 is larger than the through hole 523 so that the limit plate 521 is limited between the end of the spring shaft 53 and the frame 1. The spring 54 is a compression spring. The third locking limit rod 51 is provided on the adjustment plate 522.

[0040] The frame body 52 also includes a transverse extension plate 524 and a vertical extension plate 525. The limit plate 521, the adjustment plate 522, the transverse extension plate 524 and the vertical extension plate 525 are connected in sequence. One end of the transverse extension plate 524 is connected to the adjustment plate 522, and the other end extends inward and the vertical extension plate 525 extends downward and is arranged at this end of the transverse extension plate 524. The upper pressure roller 2 is rotatably installed on the vertical extension plate 525. When the upper pressure roller 2 is a straight wheel upper pressure roller 2a, the frame body 52 also includes a reverse roller shaft 526, which is arranged on the vertical extension plate 525 and extends outward. There is an installation space for the straight wheel upper pressure roller 2a below the transverse extension plate 524, and the straight wheel upper pressure roller 2a is arranged on the reverse roller shaft 526, so that a bending and giving space for the steel plate is formed between the folding roller 4 and the straight wheel upper pressure roller 2a.

[0041] A compression bolt 55 is provided on the transverse extension plate 524, and the compression bolt 55 is threadedly connected to the transverse extension plate 524 and can be adjusted up and down relative to the transverse extension plate 524. The frame 1 includes a side support plate 14, and an adjustment shaft hole 141 is opened on the side support plate 14. An adjustment shaft 56 is arranged in the adjustment shaft hole 141, and an eccentric wheel 57 is sleeved on the adjustment shaft 56. The eccentric wheel 57 is located above the compression bolt 55 and squeezes the compression bolt 55. The eccentric wheel 57 squeezes the compression bolt 55 and moves up and down by rotating the adjustment shaft 56, thereby adjusting the position of the adjustable mounting frame 5. Support frames 7 are set at the front and rear ends of the adjustment shaft 56. The adjustment shaft 56 is rotatably arranged on the support frame 7. A locking mechanism 71 is provided on the support frame 7. The locking mechanism 71 is used to lock the rotation angle of the adjustment shaft 56. The eccentric wheel 57 is a circular wheel, and an eccentrically arranged hexagonal through hole 571 is arranged in the circular wheel. The circular wheel is fixed on the adjustment shaft 56 through the hexagonal through hole 571.

[0042] The adjustment shaft holes 141 of the side support plates 14 on the frame 1 of each pressing roller mechanism of the upper folding row A are coaxially arranged, and the adjustment shafts 56 pass through each adjustment shaft hole 141 to synchronously drive each eccentric wheel 57 to squeeze toward the corresponding compression bolt 55, thereby synchronously adjusting the position of the adjustable mounting frame 5 of each pressing roller mechanism of the upper folding row A, and thereby synchronously adjusting the gap between each upper pressing roller 2 and the lower pressing roller 3.

[0043] The adjustment shaft holes 141 of the side support plates 14 on the frame 1 of each pressing roller mechanism of the adjustable folding row B are coaxially arranged, and the adjustment shafts 56 pass through each adjustment shaft hole 141 to synchronously drive each eccentric wheel 57 to be squeezed toward the corresponding compression bolt 55, thereby synchronously adjusting the position of the adjustable mounting frame 5 of each pressing roller mechanism of the adjustable folding row B, and thereby synchronously adjusting the gap between each upper pressing roller 2 and the lower pressing roller 3.

[0044] A method for producing CZ type purlins:

[0045] C-type purlin production: The steel plate is placed between the roller mechanisms of the upper folding row A and the adjustable folding row B set on the left and right, and both ends of the steel plate pass through the gap between the upper roller 2 and the lower roller 3. The driving shaft 6 provides power, and the upper roller 2 and the lower roller 3 press the steel plate and drive the steel plate to be transported backward through rotation;

[0046] In the upper folding row A, since the upper folding roller 41 is inclined outwardly and upwardly relative to the gap, one side of the steel plate is folded upward under the guidance of the upper folding roller 41 to form an upper folded side edge, and the inclination angle of the upper folding roller 41 of each pressing roller mechanism from front to back of the upper folding row A gradually increases, so as the steel plate is conveyed, the side edge is gradually folded upward; a plurality of groups of pressing roller mechanisms at the end of the upper folding row A are provided with right-angle rollers 44, and the angle of the right-angle roller 44 is adjustable. For steel plates of different thicknesses and different materials, the resilience is different, so the angle of the right-angle roller 44 is adaptively adjusted, so that the side edge of the steel plate finally forms a right-angle folded edge, that is, an upward folded side edge is formed to form a purlin;

[0047] Among them, at the adjustable folding row B, the outer side of the pressure roller mechanism of the adjustable folding row B for performing the first bending on the side of the steel plate is arranged with an adjustable folding roller 42, and the adjustable folding roller 42 rotates around the rotating shaft 421 to an upward folding state tilted outward and upward relative to the gap between the upper pressure roller 2 and the lower pressure roller 3, so that the adjustable folding roller 42 on the other side of the steel plate in the upward folding state guides the upward folding to form an upward folded side; the pressure roller mechanism on the rear side is arranged with a conical roller 43, and the conicity of the conical rollers 43 corresponding to the pressure roller mechanisms of the adjustable folding row B gradually increases from the front to the rear in the conveying direction, and the adjustable folding roller 42 folds the steel plate in the upward folding state. The side edge is folded upward. Since the adjustable folding roller 42 has folded the side edge of the steel plate upward, when the steel plate continues to be conveyed to the pressure roller mechanism on the rear side, the folded side edge of the steel plate will automatically correspond to the upper part of the conical roller 43 to be further folded upward; the pressure roller mechanisms of the several groups of the last positions of the adjustable folding row B are set as right-angle rollers 44. The angle of the right-angle roller 44 is adjustable. For steel plates of different thicknesses and different materials, the resilience is different. Therefore, the angle of the right-angle roller 44 is adaptively adjusted, so that the side edge of the steel plate finally forms a right-angle folded edge, that is, the upturned side edge on the other side of the purlin is formed, and then a C-shaped purlin is formed;

[0048] Production of Z-shaped purlins: The steel plate is placed between the roller mechanisms of the upper folding row A and the adjustable folding row B arranged on the left and right, and both ends of the steel plate pass through the gap between the upper folding roller 2 and the lower folding roller 3. The driving shaft 6 provides power, and the upper folding roller 2 and the lower folding roller 3 press the steel plate and drive the steel plate to be transported backward by rotating;

[0049] In the upper folding row A, since the upper folding roller 41 is inclined outwardly and upwardly relative to the gap, one side of the steel plate is folded upward under the guidance of the upper folding roller 41 to form an upper folded side edge, and the inclination angle of the upper folding roller 41 of each pressing roller mechanism from front to back of the upper folding row A gradually increases, so as the steel plate is conveyed, the side edge is gradually folded upward; a plurality of groups of pressing roller mechanisms at the end of the upper folding row A are provided with right-angle rollers 44, and the angle of the right-angle roller 44 is adjustable. For steel plates of different thicknesses and different materials, the resilience is different, so the angle of the right-angle roller 44 is adaptively adjusted, so that the side edge of the steel plate finally forms a right-angle folded edge, that is, an upward folded side edge is formed to form a purlin;

[0050] Among them, at the adjustable folding row B, the outer side of the pressure roller mechanism of the adjustable folding row B for performing the first bending on the side of the steel plate is arranged with an adjustable folding roller 42, and the adjustable folding roller 42 rotates around the rotating shaft 421 to a downward folding state tilted outward and downward relative to the gap between the upper pressure roller 2 and the lower pressure roller 3, so that the adjustable folding roller 42 on the other side of the steel plate in the downward folding state guides the downward folding to form a downward folded side edge; the pressure roller mechanism on the rear side is arranged with a tapered roller 43, and the taper of the tapered roller 43 corresponding to each pressure roller mechanism of the adjustable folding row B gradually increases from the front to the rear in the conveying direction, and the adjustable folding roller 42 folds the steel plate in the upper folding state. The side edge of the plate is folded down. Since the adjustable folding roller 42 has folded down the side edge of the steel plate, when the steel plate continues to be conveyed to the pressure roller mechanism at the rear side, the side edge of the steel plate that is folded down will automatically correspond to the lower part of the conical roller 43 to be further folded down; the pressure roller mechanisms of several groups at the end of the adjustable folding row B are set as right-angle rollers 44. The angle of the right-angle roller 44 is adjustable. For steel plates of different thicknesses and different materials, the resilience is different. Therefore, the angle of the right-angle roller 44 is adaptively adjusted, so that the side edge of the steel plate finally forms a right-angle folded edge, that is, the downward folded side edge on the other side of the purlin is formed, and then a Z-shaped purlin is formed;

[0051] A purlin forming machine adjustment method:

[0052] The steel plate is driven to be transported backward from the gap between the upper pressing roller 2 and the lower pressing roller 3, and one side of the steel plate extends outward through the gap. Due to the setting of the folding roller 4, the side of the steel plate extending outward is guided to be folded upward. During the production process, purlins of different thickness specifications are processed, so the processed steel plates have a variety of thickness specifications.

[0053] The gap between the upper pressing roller 2 and the lower pressing roller 3 needs to correspond to the thickness of the steel plate. The upper pressing roller 2 is arranged on the adjustable mounting frame 5, so the adjustable mounting frame 5 needs to be adjusted. Due to the setting of the tilt adjustment hole 13 and the third locking limit rod 51, the adjustable mounting frame 5 is restricted to move along the tilt direction of the tilt adjustment hole 13. Therefore, by adjusting the adjustable mounting frame 5 to adjust the adjustment gap between the upper pressing roller 2 and the lower pressing roller 3, the upper pressing roller 2 simultaneously moves inward laterally. The angle between the folding roller 4 and the horizontal plane is α, and the angle between the tilt adjustment hole 13 and the horizontal plane is β. The angle relationship between α and β is α+2β=180°.

[0054] Therefore, when adjusting the upper pressing roller 2, the vertical distance from the outer lower end point of the upper pressing roller 2 to the outer wall of the folding roller 4 is equal to the gap height between the upper pressing roller 2 and the lower pressing roller 3, that is, matching the thickness of the steel plate, thereby ensuring the dimensional accuracy of the product during the equipment adjustment process according to the thickness of the steel plate.

[0055] The adjustment shaft holes 141 of the side support plates 14 on the frames 1 of the respective roller mechanisms of the upper folding row A and the adjustable folding row B are coaxially arranged, and the adjustment shafts 56 pass through the adjustment shaft holes 141 to synchronously drive the eccentric wheels 57 to squeeze toward the corresponding compression bolts 55, thereby synchronously adjusting the positions of the adjustable mounting frames 5 of the roller mechanisms of the upper folding row A or the adjustable folding row B, thereby synchronously adjusting the gap between the upper pressure roller 2 and the lower pressure roller 3. Since the eccentric wheels 57 are adjusted by squeezing the compression bolts 55, and the compression bolts 55 can each adjust the upper and lower positions of the lateral extension plates 524 of the adjustable mounting frames 5 through threads, the positions of the adjustable mounting frames 5 of the roller mechanisms can be independently and adaptively fine-tuned, thereby correcting the errors generated during production and assembly.

[0056] The above is only a specific implementation of the present invention, but the design concept of the present invention is not limited to this. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. A purlin forming machine adjustment device, comprising a frame, an upper pressing roller, a lower pressing roller, and a folding roller, wherein the upper pressing roller and the lower pressing roller are arranged up and down, and a gap is formed between the upper pressing roller and the lower pressing roller for the steel plate to pass through, and the folding roller is arranged obliquely on the outer sides of the upper pressing roller and the lower pressing roller, and the outer wall surface of one end of the folding roller corresponds to the gap between the upper pressing roller and the lower pressing roller, characterized in that: The machine also includes an adjustable mounting frame, which can be adjustably mounted on the frame, the upper pressure roller can be rotatably mounted on the adjustable mounting frame, at least two parallel tilt adjustment holes are provided on the frame, the tilt adjustment holes are tilted upward toward the inside, the angle between the working surface of the folding roller and the horizontal plane is α, the angle between the tilt adjustment hole and the horizontal plane is β, and the angle relationship between α and β is α+2β=180°, and a locking limit rod is provided at the corresponding position of the adjustable mounting frame, and the locking limit rod is penetrated through the tilt adjustment hole The adjustable mounting frame is restricted to be adjusted and moved along the inclined direction of the inclined adjustment hole, so that when the gap between the upper pressure roller and the lower pressure roller is adjusted, the upper pressure roller simultaneously moves inward laterally. The adjustable mounting frame comprises a frame body, a spring shaft, and a spring. The upper pressure roller is rotatably mounted on the frame body. The frame body is provided with a through hole. The spring shaft passes through the through hole and is connected to the frame. The spring is sleeved outside the spring shaft and its two ends act on the frame body and the frame respectively. The lower pressure roller is rotatably arranged on the frame, and the lower pressure roller is connected to a power device.

2. A purlin forming machine adjustment device according to claim 1, characterized in that: The frame includes a limit plate, an adjustment plate, a transverse extension plate, a vertical extension plate, and a reverse roller shaft connected in sequence. The through hole is opened on the limit plate, one end of the spring is against the limit plate, and the other end is against the frame. The spring is a compression spring. The locking limit rod is arranged on the adjustment plate. One end of the transverse extension plate is connected to the adjustment plate, and the other end extends inward and the vertical extension plate extends downward. The reverse roller shaft is arranged on the vertical extension plate and extends outward. The upper pressure roller is arranged on the reverse roller shaft, so that a bending and clearance space of the steel plate is formed between the folding roller and the upper pressure roller.

3. A purlin forming machine adjustment device according to claim 2, characterized in that: The lateral extension plate is provided with a compression bolt, and the compression bolt is threadedly connected to the lateral extension plate and can be adjusted up and down relative to the lateral extension plate. The frame includes a side support plate, and the side support plate is provided with an adjustment shaft hole. An adjustment shaft is provided in the adjustment shaft hole, and an eccentric wheel is provided in the adjustment shaft sleeve. The eccentric wheel is located above the compression bolt and squeezes the compression bolt. The eccentric wheel squeezes the compression bolt and moves up and down by rotating the adjustment shaft, thereby adjusting the position of the adjustable mounting frame.

4. A purlin forming machine adjustment device according to claim 3, characterized in that: A group of pressing roller mechanisms is composed of a frame, an upper pressing roller and a lower pressing roller. The pressing roller mechanisms are provided with several groups and the pressing roller mechanisms acting on the same side of the steel plate are arranged along the conveying direction of the steel plate. The adjustment shaft holes of the side support plates of each pressing roller mechanism are coaxially arranged. The adjustment shaft passes through the adjustment shaft holes of each pressing roller mechanism to synchronously drive each eccentric wheel to be squeezed toward the corresponding pressure bolt, thereby synchronously adjusting the position of the adjustable mounting frame of each pressing roller mechanism.

5. A purlin forming machine adjustment device according to claim 4, characterized in that: Support frames are arranged at the front end and the rear end of the adjustment shaft, the adjustment shaft is rotatably arranged on the support frame, and a locking mechanism is arranged on the support frame, and the locking mechanism is used to lock the rotation angle of the adjustment shaft.

6. The purlin forming machine adjustment device according to claim 3, characterized in that: The eccentric wheel is a circular wheel, an eccentrically arranged hexagonal through hole is arranged inside the circular wheel, and the circular wheel is fixed on the adjustment shaft through the hexagonal through hole.

7. A method for adjusting a purlin forming machine, characterized in that: The steel plate is driven to be transported backward from the gap between the upper and lower rollers, and one side of the steel plate extends outward through the gap. Due to the setting of the folding roller, the side of the steel plate extending outward is guided to be folded upward. During the production process, purlins of different thickness specifications are processed, so the processed steel plates have a variety of thickness specifications. The gap between the upper pressing roller and the lower pressing roller needs to correspond to the thickness of the steel plate. The upper pressing roller is arranged on an adjustable mounting frame, so the adjustable mounting frame needs to be adjusted. Due to the setting of the tilt adjustment hole and the locking limit rod, the adjustable mounting frame is restricted to move along the tilt direction of the tilt adjustment hole. Therefore, by adjusting the adjustable mounting frame to adjust the adjustment gap between the upper pressing roller and the lower pressing roller, the upper pressing roller simultaneously moves inward laterally. The angle between the folding roller and the horizontal plane is α, the angle between the tilt adjustment hole and the horizontal plane is β, and the angle relationship between α and β is α+2β=180°; Therefore, when adjusting the upper pressing roller, the vertical distance from the outer lower end point of the upper pressing roller to the outer wall of the folding roller is equal to the gap height between the upper pressing roller and the lower pressing roller, that is, matching the thickness of the steel plate, ensuring the dimensional accuracy of the product during the equipment adjustment process according to the thickness of the steel plate.

Images