Cutting and edge-pressing system and hot-rolled strip production line

Abstract

This invention belongs to the field of metallurgical equipment technology, and particularly relates to a cutting, trimming, and pressing system and a hot-rolled strip production line. The cutting, trimming, and pressing system includes a roller conveyor and, sequentially arranged along the conveyor direction, a primary cutting unit, a trimming and edge-trimming unit, and an edge-pressing unit. The primary cutting unit includes two primary cutting mechanisms, each including a first drive shaft and a first cutter head mounted on the first drive shaft. The trimming and edge-trimming unit includes two trimming and edge-trimming mechanisms, each including a second drive shaft and a second cutter head and trimming shear blade mounted on the second drive shaft. The edge-pressing unit includes two edge-pressing mechanisms, each including a third drive shaft and a third cutter head mounted on the third drive shaft. This invention utilizes common structural equipment to form the primary cutting unit, the trimming and edge-trimming unit, and the edge-pressing unit, completing cutting, trimming, and edge-pressing; reducing process equipment, simplifying the process flow, and lowering production costs.

Description

Technical Field

[0001] This invention belongs to the field of metallurgical equipment technology, and in particular relates to a cutting and edge-pressing system and a hot-rolled strip production line. Background Technology

[0002] Currently, the strip slitting, trimming, and edge crushing processes in the metallurgical machinery industry are generally carried out at room temperature, using either a combination of double-sided shears and edge crushing shears, a separate slitting shear, or a combination of disc shears and edge crushing shears. This approach suffers from problems such as numerous pieces of equipment, complex processes, lengthy production lines, high production costs, and large floor space requirements. Furthermore, existing technologies lack literature reports on using a single, common-structure device to simultaneously perform slitting, trimming, edge crushing, and edge pressing operations on strips at both high and room temperatures, along with rapid adjustment of the edge crushing shear blades or cut formation. Therefore, it is essential to explore a slitting, edge crushing, and edge pressing system that can meet the needs of rapid slitting, edge crushing, and edge pressing of high-temperature strips, as well as rapid adjustment of the edge crushing shear blades, for the production of various open or closed large steel sections. Summary of the Invention

[0003] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a cutting and edge-pressing system and a hot-rolled strip production line, which solves the technical problem that in the prior art, strip cutting, edge-crushing and edge-pressing cannot be quickly adjusted simultaneously by a single common structure equipment unit under high temperature or normal temperature conditions.

[0004] To achieve the above and other related objectives, the technical solution of the present invention is as follows:

[0005] A trimming and pressing system includes: a roller conveyor and a primary trimming unit, a trimming and pressing unit, and an edge pressing unit arranged sequentially along the conveying direction of the roller conveyor, wherein...

[0006] The initial slitting unit is used to roll grooves into the strip at the part to be slitting, and includes two initial slitting mechanisms arranged vertically and vertically. Each initial slitting mechanism includes a first drive shaft and a first cutter head disposed on the first drive shaft.

[0007] The slitting and edge-breaking machine unit is used to cut the strip from the groove and break the edges of the slitting strip. It includes two slitting and edge-breaking mechanisms arranged vertically and vertically. Each slitting and edge-breaking mechanism includes a second drive shaft and a second cutter head and edge-breaking shear blade disposed on the second drive shaft.

[0008] The edge pressing unit is used to press the edge shape of the strip after it has been cut. It includes two edge pressing mechanisms arranged vertically and vertically. Each edge pressing mechanism includes a third drive shaft and a third cutter head disposed on the third drive shaft.

[0009] Optionally, the first drive shaft is axially spaced and parallel to two or more first cutters, and the initial cutting unit includes two first auxiliary roller sleeves sleeved on the first drive shaft and at least one first main roller sleeve located between the two first auxiliary roller sleeves. The first cutters are located between adjacent first main roller sleeves, or between the first main roller sleeve and the first auxiliary roller sleeve.

[0010] Optionally, the second drive shaft has two or more second cutters spaced apart and parallel to each other along the axial direction. The edge trimming unit includes two second auxiliary roller sleeves sleeved on the second drive shaft and at least one second main roller sleeve located between the two second auxiliary roller sleeves. The second cutters are located between adjacent second main roller sleeves, or between the second main roller sleeve and the second auxiliary roller sleeve. The edge trimming blades are in two groups, located on the outside of the second cutters near the end of the second drive shaft. Each group of edge trimming blades is evenly distributed in multiples along the circumference of the second drive shaft.

[0011] Optionally, the edge trimming unit further includes a shear blade adjustment device for adjusting the position of the edge trimming shear blade. The shear blade adjustment device includes a positioning plate, a guide plate, and an adjusting rod. The guide plate is located between the edge trimming shear blade and the second auxiliary roller sleeve. The positioning plate is sleeved on the second drive shaft and presses against the second auxiliary roller sleeve. The adjusting rod passes through the positioning plate and is connected to the edge trimming shear blade. Adjusting the adjusting rod causes the edge trimming shear blade to move along the guide plate.

[0012] Optionally, the shear blade adjustment device further includes a locking element, which is sleeved on the adjusting rod and locked to the positioning plate.

[0013] Optionally, the third drive shaft has two or more third cutters spaced apart and parallel to each other along the axial direction, and the pressing unit includes two third auxiliary roller sleeves sleeved on the third drive shaft and at least one third main roller sleeve located between the two third auxiliary roller sleeves. The third cutters are located between adjacent third main roller sleeves, or between the third main roller sleeve and the third auxiliary roller sleeve.

[0014] Optionally, the first drive shaft, the second drive shaft, and the third drive shaft share the same structure; the first cutter head, the second cutter head, and the third cutter head also share the same structure.

[0015] Optionally, the initial cutting unit, the edge cutting and trimming unit, and the edge pressing unit all include a frame assembly and a hydraulic assembly; the frame assembly includes a left frame, a right frame, an upper crossbeam, and a lower crossbeam, with both ends of the upper crossbeam connected to the upper parts of the left and right frames, and both ends of the lower crossbeam connected to the lower parts of the left and right frames.

[0016] Optionally, the initial cutting unit, the edge trimming unit, and the edge pressing unit all include a single roller sleeve support device or a double roller sleeve support device. The single roller sleeve support device is adapted to an arrangement where the number of cutters is even, and the double roller sleeve support device is adapted to an arrangement where the number of cutters is odd.

[0017] Optionally, the initial cutting unit, the edge trimming unit, and the edge pressing unit are arranged separately from each other or connected to each other.

[0018] Optionally, the number of each of the initial cutting unit, the edge trimming unit, and the edge pressing unit is at least one set.

[0019] The present invention also provides a hot-rolled strip production line, including the cutting and pressing system described above, wherein an annealing unit is provided upstream of the cutting and pressing system, and a finished product collection unit or a hot bending forming unit is provided downstream of the cutting and pressing system.

[0020] As described above, the edge-cutting and edge-pressing system and hot-rolled strip production line of the present invention have the following beneficial effects:

[0021] 1. Using common structural equipment, different drive shafts, cutter heads, and edge-shredding blades are assembled to form a primary cutting unit, a cutting and edge-shredding unit, and an edge-pressing unit, respectively, to complete the cutting, edge-shredding, and edge-pressing functions;

[0022] 2. Compared with existing conventional equipment that is equipped with a combination of double-sided shear and edge shear, an independent splitting shear, or a combination of disc shear and edge shear, this invention reduces process equipment, simplifies the process flow, shortens the process production line, reduces production costs, requires fewer engineering auxiliaries, and occupies a smaller area.

[0023] 3. This invention can utilize hot-rolled high-strength, high-temperature waste heat strips (or coils) to produce various open or closed large-section steel. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the edge-cutting and edge-pressing system in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the edge-cutting and trimming unit in an embodiment of the present invention;

[0026] Figure 3 This is an assembly diagram of the initial cutting unit in an embodiment of the present invention;

[0027] Figure 4 This is an assembly diagram of the edge pressing unit in an embodiment of the present invention;

[0028] Figure 5 This is an assembly diagram of the edge-splitting unit in an embodiment of the present invention;

[0029] Figure 6 This is a schematic diagram of the edge trimming adjustment device in an embodiment of the present invention;

[0030] Figure 7 for Figure 6 Side view;

[0031] Figure 8 for Figure 6 A magnified view of a section of the shear blade;

[0032] Figure 9 This is a diagram showing the arrangement of the three cutting heads in an embodiment of the present invention;

[0033] Figure 10 This is a diagram showing the arrangement of the four cutting heads in an embodiment of the present invention;

[0034] Figure 11-1 This is a schematic diagram of the uncut strip in an embodiment of the present invention;

[0035] Figure 11-2 This is a schematic diagram of the initial cutting pattern of the strip in an embodiment of the present invention;

[0036] Figure 11-3 This is a schematic diagram of the strip cutting edge plate type in an embodiment of the present invention;

[0037] Figure 12 This is a schematic diagram of the upper and lower first cutter heads of the initial cutting unit in an embodiment of the present invention;

[0038] Figure 13 This is a schematic diagram of the upper and lower second cutter heads of the edge-shredding unit in an embodiment of the present invention;

[0039] Figure 14-1 This is a schematic diagram of the strip profile in the middle of the pressing unit in an embodiment of the present invention. Figure 1 ;

[0040] Figure 14-2 This is a schematic diagram of the strip profile in the middle of the pressing unit in an embodiment of the present invention. Figure 2 ;

[0041] Figure 14-3 This is a schematic diagram of the strip profile in the middle of the pressing unit in an embodiment of the present invention. Figure 3 ;

[0042] Figure 14-4 This is a schematic diagram of the strip profile in the middle of the pressing unit in an embodiment of the present invention. Figure 4 ;

[0043] Figure 14-5 This is a schematic diagram of the strip profile in the middle of the pressing unit in an embodiment of the present invention. Figure 5 ;

[0044] Figure 15-1This is a schematic diagram of the strip profile on the left and right sides of the pressing unit in an embodiment of the present invention. Figure 1 ;

[0045] Figure 15-2 This is a schematic diagram of the strip profile on the left and right sides of the pressing unit in an embodiment of the present invention. Figure 2 ;

[0046] Figure 15-3 This is a schematic diagram of the strip profile on the left and right sides of the pressing unit in an embodiment of the present invention. Figure 3 ;

[0047] Figure 16 This is a schematic diagram of the double roller sleeve support device in an embodiment of the present invention;

[0048] Figure 17 This is a schematic diagram of a single roller sleeve support device in an embodiment of the present invention;

[0049] Figure 18 This is a schematic diagram of the overall structure of the edge-cutting and edge-pressing system in another embodiment of the present invention.

[0050] Explanation of reference numerals in the attached figures

[0051] 100 - Initial cutting unit; 110 - First drive shaft; 111 - First cutter head; 112 - First main roller sleeve; 113 - First auxiliary roller sleeve;

[0052] 200 - Edge trimming and shredding unit; 210 - Second drive shaft; 211 - Second cutter head; 212 - Second main roller sleeve; 213 - Second auxiliary roller sleeve; 214 - Edge trimming shear blade; 220 - Frame assembly; 230 - Drive assembly; 240 - Shear blade adjustment device; 241 - Positioning plate; 242 - Guide plate; 243 - Adjusting rod; 244 - First locking element; 245 - Second locking element; 246 - Pad plate;

[0053] 300 - Edge pressing unit; 310 - Third drive shaft; 311 - Third cutter head; 312 - Third main roller sleeve; 313 - Third auxiliary roller sleeve;

[0054] 400-roller conveyor;

[0055] 500-plate and strip;

[0056] 610 - Double roller sleeve support device; 620 - Single roller sleeve support device. Detailed Implementation

[0057] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0058] It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of the present invention. Therefore, the illustrations only show components relevant to the present invention and are not drawn according to the actual number, shape, and size of components in implementation. In actual implementation, the shape, quantity, and proportion of each component can be arbitrarily changed, and the component layout may be more complex. It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation conditions of the present invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of the present invention, should still fall within the scope of the technical content disclosed in the present invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are only for clarity of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention.

[0059] To provide a detailed description of the present invention, the edge-cutting and pressing system of the present invention will be described in detail below:

[0060] Please combine Figures 1 to 5 As shown, the present invention provides a cutting and pressing system for edge trimming, comprising: a roller conveyor 400 and a primary cutting unit 100, an edge trimming unit 200, and an edge pressing unit 300 arranged sequentially along the conveying direction of the roller conveyor 400, wherein, see reference Figure 3 The initial slitting unit 100 is used to roll grooves into the strip 500 at the slitting section. It includes two initial slitting mechanisms arranged vertically opposite each other. Each initial slitting mechanism includes a first drive shaft 110 and a first cutter head 111 disposed on the first drive shaft 110. (See reference...) Figure 5 The edge-cutting and trimming unit 200 is used to cut the strip 500 from the groove and trim the edges of the cut strip. It includes two edge-cutting and trimming mechanisms arranged vertically opposite each other. Each edge-cutting and trimming mechanism includes a second drive shaft 210, and a second cutter head 211 and a trimming blade 214 mounted on the second drive shaft 210. (See reference...) Figure 4The edge pressing unit 300 is used to press the edge shape of the strip 500 after it has been cut. It includes two edge pressing mechanisms arranged vertically and vertically. Each edge pressing mechanism includes a third drive shaft 310 and a third cutter head 311 disposed on the third drive shaft 310.

[0061] The system comprises three main components: a primary slitting unit 100 for initially slitting (incompletely slitting) the high-temperature hot strip 500 (or roll); a slitting and edge-trimming unit 200 for slitting and edge-trimming the high-temperature strip 500 (or roll); and an edge-pressing unit 300 for pressing the high-temperature strip 500 (or roll) to the required shape. The high-temperature strip 500 (or roll) is placed on the roller conveyor 400 and moves under its transport, sequentially passing through the primary slitting unit 100, the slitting and edge-trimming unit 200, and the edge-pressing unit 300 to complete the initial slitting, edge-trimming, and edge-pressing processes. The roller conveyor 400 also includes a motor, a reducer, and a coupling to drive the conveyor for transport operations.

[0062] The slitting, edge trimming, and edge pressing system consists of several structurally identical pieces of equipment mounted on the drive roller conveyor 400. Different shaped cutters, edge trimming blades, and roller sleeves are mounted on the drive shaft to form a primary slitting unit 100 (1-3 units), a slitting and edge trimming unit 200, and an edge pressing unit 300 (1-3 units), respectively, to complete the slitting, edge trimming, and edge pressing functions. Utilizing these common pieces of equipment to form the slitting, edge trimming, and edge pressing system enables the slitting, edge trimming, and edge pressing of the strip 500, reducing the need for spare parts. It is particularly suitable for rolling high-strength strip 500 (or coils) with a thickness of 5-60mm and a width of 800-5500mm (not limited to these), or for producing slitting strip 500 finished products from non-ferrous metals (aluminum plates, copper plates, etc.), or for direct connection to thermoforming equipment.

[0063] In some implementations, see Figures 3 to 5 The first cutter heads 111 located on the two first drive shafts 110 are arranged vertically in a corresponding manner; the second cutter heads 211 located on the two second drive shafts 210 are arranged vertically in a corresponding manner; and the third cutter heads 311 located on the two third drive shafts 310 are arranged vertically in a corresponding manner. Specifically, as shown... Figure 3 As shown, in the initial cutting and slitting unit 100, two first drive shafts 110 are arranged vertically in a corresponding manner, and each first drive shaft 110 is equipped with a first cutter head 111, with the two first cutter heads 111 arranged vertically in a corresponding manner; as shown... Figure 5 As shown, in the edge-shredding unit 200, two second drive shafts 210 are arranged vertically in a corresponding manner, and each second drive shaft 210 is equipped with a second cutter head 211, with the two second cutter heads 211 arranged vertically in a corresponding manner; as shown Figure 4As shown, in the edge-pressing unit 300, the two third drive shafts 310 are arranged vertically in a corresponding manner, and each third drive shaft 310 is equipped with a third cutter head 311, with the two third cutter heads 311 arranged vertically in a corresponding manner. (See reference...) Figure 5 The diagram shows the assembly of the edge trimming unit 200. The left side of the diagram represents the operation side, and the right side represents the transmission side. The diagram illustrates the assembly of the two second transmission shafts 210 and the installation of the second cutter head 211 on each second transmission shaft 210. The overall structure of the primary trimming unit 100 and the edge pressing unit 300 is similar to that of the edge trimming unit 200. However, the primary trimming unit 100 and the edge pressing unit 300 do not include the edge trimming shear blade 214 and the shear blade adjustment device 240.

[0064] It should be noted that, for reference Figure 5 and Figure 6 The edge-trimming blades 214 are in two sets, located on the outer side of the second cutter head 211 near the end of the second drive shaft 210. Multiple edge-trimming blades 214 are evenly distributed in each set along the circumference of the second drive shaft 210. Specifically, edge-trimming blades 214 are provided on the outer side of each of the two second cutter heads 211 at both ends of the second drive shaft 210. Each set of edge-trimming blades 214 has two or more blades arranged along the circumference of the second drive shaft 210, and the edge-trimming blades 214 are close to their adjacent second cutter heads 211. (See reference...) Figure 7 As shown, in this embodiment, each set of edge-shearing blades 214 on the second drive shaft 210 is set to four, and they are evenly distributed along its circumference. In other embodiments, other numbers can be set according to actual working conditions. Using the above structure, by coaxially setting the edge-shearing blades 214 and the second cutter head 211, the following shearing schemes can be achieved: First, the strip 500 can be longitudinally cut off on both sides simultaneously; second, the strip 500 can be longitudinally split and cut into multiple strips; third, the edges of the strip 500 after cutting or splitting can be simultaneously broken. When the strip 500 (or coil) at room temperature or high temperature enters the edge-shearing and cutting unit 200, the second cutter head 211 first performs splitting and shearing, and then the edge-shearing blades 214 break the edges. That is, the second cutter head 211 located in the middle of the second drive shaft 210 performs splitting work, the second cutter heads 211 on both sides cut the edges simultaneously, and then the edge-shearing blades 214 break the edges after cutting.

[0065] In the above embodiments, see Figure 6 , Figure 7 and Figure 8As shown, the edge-shredding unit 200 further includes a shear blade adjustment device 240 for adjusting the position of the edge-shredding shear blade 214. The shear blade adjustment device 240 includes a positioning plate 241, a guide plate 242, and an adjusting rod 243. The guide plate 242 is located between the edge-shredding shear blade 214 and the second auxiliary roller sleeve 213. The positioning plate 241 is sleeved on the second drive shaft 210 and presses against the second auxiliary roller sleeve 213. The adjusting rod 243 passes through the positioning plate 241 and is connected to the edge-shredding shear blade 214. Adjusting the adjusting rod 243 causes the edge-shredding shear blade 214 to move along the guide plate 242. The shear blade adjustment device 240 can adjust the axial and radial positions of the edge-shredding shear blade 214 on the second drive shaft 210. The guide plate 242 and the edge-trimming shear blade 214 have an inclined surface fit structure. The guide plate 242 has a first inclined surface, and the edge-trimming shear blade 214 has a second inclined surface. The first and second inclined surfaces fit together. When the adjusting rod 243 is adjusted, the axial and radial positions of the edge-trimming shear blade 214 on the second drive shaft 210 can be adjusted under the action of the guide plate 242.

[0066] The shear blade adjustment device also includes a locking component, which is sleeved on the adjusting rod 243 and locked onto the positioning plate 241. Specifically, in this embodiment, it includes a first locking component 244 and a second locking component 245. The positioning plate 241 has a concave groove. The first locking component 244 is sleeved on the adjusting rod 243 and located in the concave groove. The second locking component 245 is sleeved on the end of the adjusting rod 243 and locked onto the positioning plate 241. The positioning plate 241 is located on the side of the edge-breaking shear blade 214 away from the second cutter head 211. An auxiliary pad 246 is provided between the edge-breaking shear blade 214 and the positioning plate 241. By providing the first locking component 244, the adjusting rod 243 can be adjusted. By providing the second locking component 245, the adjusted position of the second drive shaft 210 can be positioned and locked to prevent loosening.

[0067] Specifically, the quick adjustment method for the edge-trimming shear blade 214 is as follows: Rotate the first locking member 244, push and pull the edge-trimming shear blade 214 (with adjusting rod 243), and through the action of the guide plate 242 (which contacts the inclined surface of the edge-trimming shear blade 214), the edge-trimming shear blade 214 is moved radially away from the second auxiliary roller sleeve 213 and axially away from the second cutter head 211 on the second drive shaft 210; or, the edge-trimming shear blade 214 is moved radially closer to the second auxiliary roller sleeve 213 and axially closer to the second cutter head 211 on the second drive shaft 210, thereby achieving the adjustment of the edge-trimming shear blade 214. This method allows for quick adjustment of the edge-trimming shear blade 214, facilitating rapid assembly.

[0068] In some embodiments, the first drive shaft 110 has two or more first cutter heads 111 spaced apart and parallel to each other along the axial direction, the second drive shaft 210 has two or more second cutter heads 211 spaced apart and parallel to each other along the axial direction, and the third drive shaft 310 has two or more third cutter heads 311 spaced apart and parallel to each other along the axial direction. Specifically, it can be configured as a double-cutting cutter head form, a triple-cutting cutter head form, a quadruple-cutting cutter head form, and a five-cutting cutter head form, etc. For example, such as... Figure 9 As shown, it is a layout diagram of a three-section cutting head; as Figure 10 The diagram shows a layout with four cutting heads. For the cutting and trimming unit 200, three second cutting heads 211 are arranged along the axial direction of each second drive shaft 210, with the second cutting heads 211 on the two second drive shafts 210 arranged vertically; or, four second cutting heads 211 are arranged along the axial direction of each second drive shaft 210, with the second cutting heads 211 on the two second drive shafts 210 arranged vertically. The left and right positions of the upper and lower second cutting heads 211 can be interchanged; that is, a pair of upper second cutting heads 211 can be on the left or right side of the lower second cutting head 211. The second cutting head 211 located in the middle of the second drive shaft 210 has the same or different diameter or thickness as the second cutting heads 211 located on both sides, to meet different process requirements. In the diagram, 'a' represents the center distance between the upper and lower drive shafts (e.g., the upper and lower second drive shafts 210), 'a1' represents the center distance between the axis of the upper drive shaft and the center line of the thickness of the strip 500, and 'a2' represents the center distance between the axis of the lower drive shaft and the center line of the thickness of the strip 500. 'b1' represents the width of the strip 500, 'b2' represents the edge width, 'b3' represents the total width of the roller sleeves on the drive shaft, and 'b4', 'b5', and 'b6' represent the individual widths of the roller sleeves for different arrangement methods.

[0069] Similarly, for the initial cutting unit 100 and the edge pressing unit 300, the number of first cutter heads 111 and the number of third cutter heads 311 can be configured as double-cutting cutter heads, triple-cutting cutter heads, quadruple-cutting cutter heads, and five-cutting cutter heads, etc., according to actual needs. The installation position, diameter, or thickness of the first cutter head 111 and the third cutter head 311 can be adaptively adjusted according to working conditions.

[0070] See Figure 3In the above embodiment, the initial slitting unit 100 includes two first auxiliary roller sleeves 113 sleeved on the first drive shaft 110 and at least one first main roller sleeve 112 located between the two first auxiliary roller sleeves 113. The first cutter head 111 is located between adjacent first main roller sleeves 112, or between the first main roller sleeve 112 and the first auxiliary roller sleeve 113. Specifically, the first main roller sleeve 112 and the first auxiliary roller sleeve 113 limit the axial position of the first cutter head 111 on the first drive shaft 110. The outer diameter of the first cutter head 111 is D11, the outer diameter of the first main roller sleeve 112 is D12, and the outer diameter of the first auxiliary roller sleeve 113 is D13, where D11>D12>D13.

[0071] See Figure 5 The edge-shredding unit 200 includes two second auxiliary roller sleeves 213 sleeved on the second drive shaft 210 and at least one second main roller sleeve 212 located between the two second auxiliary roller sleeves 213. The second cutter head 211 is located between adjacent second main roller sleeves 212, or between the second main roller sleeve 212 and the second auxiliary roller sleeve 213. The edge-shredding blades 214 are in two sets, located on the outer side of the second cutter head 211 near the end of the second drive shaft 210, with multiple blades evenly distributed in each set along the circumference of the second drive shaft 210. Specifically, the axial position of the second cutter head 211 on the second drive shaft 210 is limited by the second main roller sleeve 212 and the second auxiliary roller sleeve 213. The outer diameter of the second cutter head 211 is D21, the outer diameter of the second main roller sleeve 212 is D22, and the outer diameter of the second auxiliary roller sleeve 213 is D23, where D21>D22>D23.

[0072] See Figure 4 The pressing unit 300 includes two third auxiliary roller sleeves 313 sleeved on the third drive shaft 310 and at least one third main roller sleeve 312 located between the two third auxiliary roller sleeves 313. The third cutter head 311 is located between adjacent third main roller sleeves 312, or between the third main roller sleeve 312 and the third auxiliary roller sleeve 313. The axial position of the third cutter head 311 on the third drive shaft 310 is limited by the third main roller sleeve 312 and the third auxiliary roller sleeve 313. The outer diameter of the third cutter head 311 is D31, the outer diameter of the third main roller sleeve 312 is D32, and the outer diameter of the third auxiliary roller sleeve 313 is D33, where D31>D32>D33.

[0073] The first drive shaft 110, the second drive shaft 210, and the third drive shaft 310 share the same structure; the first cutter head 111, the second cutter head 211, and the third cutter head 311 also share the same structure. The first auxiliary roller sleeve 113, the second auxiliary roller sleeve 213, and the third auxiliary roller sleeve 313 share the same structure, and the first auxiliary roller sleeve 113, the second auxiliary roller sleeve 213, and the third auxiliary roller sleeve 313 are flat roller sleeves or concave sleeves.

[0074] In some embodiments, the first cutter head 111 of the initial slitting unit 100 is triangular, trapezoidal, arc-shaped, convex, concave, or a combination of curves; the axial and radial positions of the upper and lower corresponding first cutter heads 111 are arranged symmetrically or asymmetrically; the upper and lower corresponding first cutter heads 111 have a gap. Specifically, as shown... Figures 11-1 to 11-3 The diagram shown illustrates the variations in the 500mm slit profile (or hole type) of the strip. Figures 11-1 to 11-3 As shown in the figure, h represents the thickness of the strip (500mm). Figure 11-1 The uncut strip 500 is shown in its flat state; Figure 11-2 The initial cut shows the plate shape; the strip 500 is cut into grooves and convex shapes after the initial cut. Figure 11-3 The diagram shows the board shape after edge trimming, with strip 500 cut open and its edges broken. Strip 500 changes from a flat state to an initially trimmed state (uncut and convex), and then, after edge trimming, becomes a fully trimmed state (cut open and its edges broken). For example... Figure 12 The diagram shows the variation of the upper and lower first cutter heads 111 (or hole type) of the initial slitting unit 100. Since the initial slitting unit 100 is used to perform preliminary slitting on the strip 500 (or coil), and the strip 500 (or coil) will not be cut, the corresponding upper and lower first cutter heads 111 are configured to have a gap.

[0075] In some embodiments, the second cutter head 211 of the edge-shredding unit 200 is triangular, trapezoidal, arc-shaped, or a combination of curves, and the shape of the edge-shredding blade 214 matches that of the second cutter head 211; the axial and radial positions of the upper and lower corresponding second cutters 211 are arranged symmetrically or asymmetrically; the upper and lower corresponding second cutters 211 are in contact with each other or have a gap. Specifically, as shown... Figure 13 The diagram shows the variation of the upper and lower second cutters 211 (or hole type) of the slitting and edge-shredding unit 200. The slitting and edge-shredding unit 200 is used to slit and shred the strip 500 (or coil), and the strip 500 (or coil) is slitted while the edge is being shredded.

[0076] In some embodiments, the third cutter head 311 of the pressing unit 300 is triangular, trapezoidal, arc-shaped, convex, concave, or a combination of curves; the axial and radial positions of the upper and lower corresponding third cutter heads 311 are arranged symmetrically or asymmetrically; the upper and lower corresponding third cutter heads 311 are in contact with each other or have a gap. Specifically, for example... Figures 14-1 to 14-5 as well as Figures 15-1 to 15-3 The diagram shows the variations of the upper and lower third cutters 311 (or die type) of the edge pressing unit 300. The edge pressing unit 300 is used to press the edges of the strip 500 (or coil). Figures 14-1 to 14-5 The image shows the die pattern of the cutting opening in the middle of the pressing unit 300. Figure 14-1 This shows that the two sides of the cut are flattened. Figure 14-2 It shows that the cutting opening has V-shaped holes on both sides and has gaps; Figure 14-3 It shows that the cut is X-shaped, and a protrusion is pressed out on one side of the cut; Figure 14-4 It shows that the two sides of the cutting opening are trapezoidal, and one side of the cutting opening is pressed out with a protrusion, and there is a gap in the cutting opening; Figure 14-5 It shows that one side of the cutting edge is flattened while the other side is pressed out, and there is a gap at the cutting edge. Figures 15-1 to 15-3 The diagram shows the die-cutting openings on the left and right sides of the pressing unit 300, and the shape (or die) of the left and right side cutting openings matches or has a gap with the shape (or die) of the middle cutting opening. Figure 15-1 The shape of the left and right side cutting openings and Figure 14-2 The shape of the middle cutting opening matches. Figure 15-2 The shape of the left and right side cutting openings and Figure 14-4 The shape of the middle cutting opening matches. Figure 15-3 The shape of the left and right side cutting openings and Figure 14-5 The shape of the middle cutting opening matches.

[0077] In the above embodiments, the initial slitting unit 100, the edge trimming unit 200, and the edge pressing unit 300 all include a frame assembly 220 and a hydraulic assembly. That is, the initial slitting unit 100, the edge trimming unit 200, and the edge pressing unit 300 are all equipped with similar frame assemblies 220 and hydraulic assemblies, wherein the frame assembly 220 is used to install and support the various components of the unit; the hydraulic assembly can be a hydraulic cylinder, which serves to provide a power source.

[0078] For example, see Figure 5The frame assembly 220 includes a left frame, a right frame, an upper crossbeam, and a lower crossbeam. The two ends of the upper crossbeam are connected to the upper parts of the left and right frames, and the two ends of the lower crossbeam are connected to the lower parts of the left and right frames. Roller sleeve support devices for the upper and lower drive shafts can be mounted in the middle of the upper and lower crossbeams to support the roller sleeves of the two drive shafts respectively. The roller sleeve support device includes a support cylinder, a support roller, and a support roller sleeve. The support roller sleeve is fitted onto the support roller, and the support roller contacts the roller sleeve on the drive shaft through the support roller sleeve, driving the support roller to rotate under the action of the roller sleeve.

[0079] In the above embodiments, the initial cutting unit 100, the edge trimming unit 200, and the edge pressing unit 300 all include a single roller sleeve support device 620 or a double roller sleeve support device 610. The single roller sleeve support device 620 is adapted to an arrangement where the number of cutters is even, and the double roller sleeve support device 610 is adapted to an arrangement where the number of cutters is odd. Figure 16 As shown, this is a schematic diagram of the double roller sleeve support device 610, which is related to... Figure 9 The diagram illustrates a matching number of cutter heads and roller sleeves, with an odd number of cutter heads and an even number of roller sleeves; for example... Figure 17 As shown, this is a schematic diagram of a single roller sleeve support device 620, which is related to... Figure 10 The diagram shows a matching number of cutter heads and roller sleeves, with an even number of cutter heads and an odd number of roller sleeves.

[0080] It is understood that the initial cutting unit 100, the edge trimming unit 200, and the edge pressing unit 300 are either separated from each other or connected to each other. For example... Figure 1 As shown, this is an assembly diagram of a trimming and pressing system in one embodiment, where the initial trimming unit 100, the trimming and pressing unit 200, and the pressing unit 300 are separately arranged. Or as... Figure 18 As shown, this is an assembly diagram of the edge-cutting and pressing system in another embodiment. The initial cutting unit 100, the edge-cutting and pressing unit 200, and the pressing unit 300 are interconnected, forming a compact layout. Adjacent frame assemblies 220 can be connected via horizontal and vertical rigid connectors. This design saves more space. In the figure, b7 represents the center distance between the initial cutting unit 100 and the edge-cutting and pressing unit 200, and b8 represents the center distance between the pressing unit 300 and the edge-cutting and pressing unit 200.

[0081] Furthermore, the number of each of the initial cutting unit 100, the edge trimming unit 200, and the edge pressing unit 300 is at least one set. Specifically, one set of the edge trimming unit 200 is sufficient. The initial cutting unit 100 and the edge pressing unit 300 can be equipped with one, two, three, four, or five sets, respectively, depending on the working conditions. The initial cutting unit 100 can continuously press multiple times, or be equipped with 1 to 3 sets of frames (the initial cutting is not complete, and each cut is deeper than the last); one set of the edge trimming unit 200 is sufficient (it cuts the edges and trims them); the edge pressing unit 300 can continuously press multiple times, or be equipped with 1 to 3 sets of frames (to shape the material as needed).

[0082] For example, for the initial slitting unit 100, the assembly combination of its slitting roller sleeves can be: single slitting roller sleeve, double slitting roller sleeve, triple slitting roller sleeve, quadruple slitting roller sleeve, five slitting roller sleeve, etc. For the edge trimming unit 200, the assembly combination of its edge trimming roller sleeves can be: single-sided edge trimming roller sleeve, left and right double-sided edge trimming roller sleeves, one or two slitting cutters in the middle + left and right double-sided edge trimming roller sleeves, one or two slitting cutters in the middle + a slitting cutter fixed on the shaft in the middle + left and right double-sided edge trimming roller sleeves, etc. For the edge pressing unit 300, the assembly combination of its edge pressing roller sleeves can be: single edge pressing roller sleeve, double edge pressing roller sleeve, triple edge pressing roller sleeve, quadruple edge pressing roller sleeve, five edge pressing roller sleeve, etc.

[0083] It should be noted that the upper and lower drive shafts (or cutters, roller sleeves) of the primary cutting unit 100, the cutting and edge-shredding unit 200, and the edge-pressing unit 300 in the edge-shredding and edge-pressing system are all replaced from their respective operating sides. Specifically, the replacement can be carried out through a replacement device (e.g., a push-pull cylinder) arranged outside the operating side, by pushing, pulling, lateralizing, and then pushing and pulling the old and new drive shafts into and out of the frame assembly 220.

[0084] In addition, the common structural parts of the initial cutting unit 100, the cutting and trimming unit 200 and the pressing unit 300 also include: a transmission device (including a motor, a reducer and a universal coupling), an upper transmission shaft assembly balancing device (or a hydraulic cylinder), a transmission shaft assembly and frame axial positioning device, etc. (not shown in the figure).

[0085] This invention also provides a hot-rolled strip production line, including the edge-cutting and edge-pressing system described above. An upstream sizing unit is provided for the edge-cutting and edge-pressing system, and a downstream finished product collection unit or a hot bending forming unit is provided. More specifically, the sizing unit may include, for example, a strip end cutter (or a coil uncoiler), a straightener, etc., to cut and straighten the strip 500. The finished product collection unit may also include a cross-cutting machine, a cooling device, etc.; connecting it to the hot bending forming unit facilitates the production of various open or closed large steel sections.

[0086] In summary, the cutting, trimming, and pressing system and hot-rolled strip production line provided by this invention utilize common structural equipment and, by assembling different cutter heads and trimming shears, respectively form a primary cutting unit, a cutting and trimming unit, and a pressing unit to complete the cutting, trimming, and pressing functions. Compared with existing conventional equipment that is equipped with a combination of double-sided shears and trimming shears, independent slitting shears, and a combination of disc shears and trimming shears, this invention reduces process equipment, simplifies the process flow, shortens the production line, reduces production costs, requires fewer engineering auxiliaries, and occupies less space. This invention can utilize hot-rolled high-strength, high-temperature waste heat strip (or coil) to produce various open or closed large-section steel.

[0087] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A system for cutting and pressing edge fragments, characterized in that, include: The roller conveyor and the initial cutting unit, edge trimming unit, and edge pressing unit arranged sequentially along the conveyor direction, wherein, The initial slitting unit is used to roll grooves into the strip at the part to be slitting, and includes two initial slitting mechanisms arranged vertically and vertically. Each initial slitting mechanism includes a first drive shaft and a first cutter head disposed on the first drive shaft. The slitting and edge-breaking machine unit is used to cut the strip from the groove and break the edges of the slitting strip. It includes two slitting and edge-breaking mechanisms arranged vertically and vertically. Each slitting and edge-breaking mechanism includes a second drive shaft and a second cutter head and edge-breaking shear blade disposed on the second drive shaft. The edge pressing unit is used to press the edge shape of the strip after it has been cut. It includes two edge pressing mechanisms arranged vertically and vertically. Each edge pressing mechanism includes a third drive shaft and a third cutter head disposed on the third drive shaft. The first drive shaft has two or more first cutters spaced apart and parallel to each other along the axial direction. The initial cutting unit includes two first auxiliary roller sleeves sleeved on the first drive shaft and at least one first main roller sleeve located between the two first auxiliary roller sleeves. The first cutters are located between adjacent first main roller sleeves or between the first main roller sleeve and the first auxiliary roller sleeve. The second drive shaft has two or more second cutters spaced apart and parallel to each other along the axial direction. The edge trimming unit includes two second auxiliary roller sleeves sleeved on the second drive shaft and at least one second main roller sleeve located between the two second auxiliary roller sleeves. The second cutters are located between adjacent second main roller sleeves, or between the second main roller sleeve and the second auxiliary roller sleeve. The edge trimming blades are in two groups, located on the outside of the second cutters near the end of the second drive shaft. Each group of edge trimming blades is evenly distributed in multiples along the circumference of the second drive shaft. The edge trimming unit also includes a shear blade adjustment device for adjusting the position of the edge trimming shear blade. The shear blade adjustment device includes a positioning plate, a guide plate, and an adjusting rod. The guide plate is located between the edge trimming shear blade and the second auxiliary roller sleeve. The positioning plate is sleeved on the second drive shaft and presses against the second auxiliary roller sleeve. The adjusting rod passes through the positioning plate and is connected to the edge trimming shear blade. Adjusting the adjusting rod causes the edge trimming shear blade to move along the guide plate. The shear blade adjustment device also includes a locking element, which is sleeved on the adjusting rod and locked to the positioning plate.

2. The edge-cutting and edge-pressing system according to claim 1, characterized in that: The third drive shaft is axially spaced and parallel to two or more third cutters. The pressing unit includes two third auxiliary roller sleeves sleeved on the third drive shaft and at least one third main roller sleeve located between the two third auxiliary roller sleeves. The third cutter is located between adjacent third main roller sleeves or between the third main roller sleeve and the third auxiliary roller sleeve.

3. The edge-cutting and edge-pressing system according to claim 1, characterized in that: The first drive shaft, the second drive shaft, and the third drive shaft share the same structure; the first cutter head, the second cutter head, and the third cutter head also share the same structure.

4. The edge-cutting and edge-pressing system according to claim 1, characterized in that: The initial cutting unit, the edge cutting and trimming unit, and the edge pressing unit all include a frame assembly and a hydraulic assembly; the frame assembly includes a left frame, a right frame, an upper crossbeam, and a lower crossbeam, with both ends of the upper crossbeam connected to the upper parts of the left and right frames, and both ends of the lower crossbeam connected to the lower parts of the left and right frames.

5. The edge-cutting and edge-pressing system according to claim 1, characterized in that: The initial cutting unit, the edge trimming unit, and the edge pressing unit all include a single roller sleeve support device or a double roller sleeve support device. The single roller sleeve support device is adapted to an arrangement where the number of cutters is even, and the double roller sleeve support device is adapted to an arrangement where the number of cutters is odd.

6. The edge-cutting and edge-pressing system according to claim 1, characterized in that: The initial cutting unit, the edge trimming unit, and the edge pressing unit are either separated from each other or connected to each other.

7. The edge-cutting and edge-pressing system according to claim 1, characterized in that: The number of each of the initial cutting unit, the edge trimming unit, and the edge pressing unit is at least one.

8. A hot-rolled strip production line, characterized in that: The system includes the edge trimming and pressing system as described in any one of claims 1-7, wherein an upstream sizing unit is provided for the edge trimming and pressing system, and a finished product collection unit or a hot bending forming unit is provided downstream of the edge trimming and pressing system.

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