Multi-channel pinch roll device

Abstract

The utility model relates to a multi-channel pinch roll device which comprises a pinch roll body, the pinch roll body comprises a lower roll structure, the lower roll structure comprises a lower roll body, a central shaft of the lower roll body is horizontal and is perpendicular to the conveying direction of rolled pieces, the lower roll body is connected with a rotation driving structure, and the lower roll body is further connected with a lower roll adjusting structure. A plurality of upper roller structures capable of moving and adjusting in the direction of the center axis of a lower roller body are arranged above the lower roller structure at intervals, each upper roller structure comprises an upper roller body, and each upper roller body is independently connected with an upper roller adjusting structure capable of driving the upper roller body to ascend and descend. An inlet conduit and an outlet conduit are respectively arranged on two sides of the lower roller body. The upper roller structure can be used for conveying rolled pieces, assisting a rolling mill in gripping and assisting in shearing in slitting bar production, solves the problem that the rolled pieces in various slitting rolling channels are different in diameter and cannot be clamped at the same time, can also be used for conveying and clamping round bars, meets clamping of different specifications by adjusting the upper roller structure, reduces replacement times of the roller rings, and improves production efficiency. And the non-production time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical steel rolling, in particular to a multi-channel pinch roller device used in a bar production line. Background Art

[0002] Rebar is widely used in the construction of civil engineering projects such as houses, bridges, and roads. At present, most of the conventional hot-rolled rebar production lines use the split rolling production process. The use of split rolling technology can shorten the rolling rhythm, increase the output of small-sized rebars, significantly improve production efficiency, and reduce energy consumption and costs. At present, the split rolling technology has developed to five-split rolling, and has been widely used in the production of small-sized rebars as a mature technology. In recent years, in order to meet the new national standard rebar production and reduce costs, advanced production processes and controlled rolling and cooling technologies have been proposed, and corresponding equipment needs to be equipped to meet the production process.

[0003] Traditional multi-cut bar production lines usually use 18 rolling mills, and the last stand rolls out finished products. After the rolls are cut, they are cooled through a water cooling device, and then multiple side-by-side cut rolls are gathered to the double-length shear for shearing. Taking the rolling of five-cut rebar as an example, after the rolls are rolled by the finishing mill, five rolls are placed side by side in a water cooling device with a cutting spacing of 135mm for cooling. After cooling, they are gathered through the gathering guide groove, and then conveyed by the pinch rollers and assisted by double-length shearing. The double-length shear is divided into double-length sections. After double-length, the five rolls enter the step-type cooling bed for cooling.

[0004] In order to meet the requirements of the new national standard for hot-rolled steel bars and reduce production costs, advanced production processes and controlled rolling and cooling technologies have been gradually adopted. The rolled pieces are cut from the pre-finishing mill, and the temperature of the cut rolled pieces is lowered before two passes of rolling are performed to achieve temperature control and rolling of the entire rolling line, which improves the internal organization and performance of the product. Taking five-cutting as an example, after the rolled pieces pass through the pre-finishing mill, five parallel rolled pieces with an equal spacing of 135mm are cut. After the five rolled pieces enter the pre-water cooling device in a straight line in a straight line for cooling, they are still transported forward in a straight line at a five-cut spacing for rolling, and pass through the conveying duct, pinch rollers, and flying shears in turn, and enter the finishing mill. After two passes of finishing rolling, the rolled pieces are still cooled in the water-through cooling device at a five-cut spacing, and then the five parallel cut rolled pieces are gathered through the gathering guide groove, and after being sheared by multiple-length shears and multiple-length sections, they enter the cooling bed conveyor roller.

[0005] The pinch rollers in the traditional process are located before the multiple-length shears. Figure 4. The pinch roller is mainly composed of a pinch roller base 81, an existing motor 82, an existing gear box 83 and an existing pinch roller body 84. The upper and lower rollers of this type of pinch roller are cantilever rollers, and the roller ring width is limited, which cannot meet the requirements of the passing and clamping of the five-cutting interval 135mm rolled pieces. The straight passing width of the five-cutting interval 135mm rolled pieces is at least 675mm. In addition, the diameter of each rolled piece in the cut pieces will not be exactly the same. This pinch roller is clamped by the existing lower roller 841 and the existing upper roller 842, and it cannot guarantee that each rolled piece can be clamped. If clamping is forced, it will cause deformation of the rolled piece, reduce the quality of the product, and reduce the yield rate.

[0006] Therefore, the inventor, relying on many years of experience and practice in related industries, proposes a multi-channel pinch roller device to overcome the defects of the prior art. Utility Model Content

[0007] The purpose of the utility model is to provide a multi-channel pinch roller device, which can be used for conveying rolled pieces, assisting the rolling mill to bite and assisting shearing in the production of split rods, solving the problem that the rolled pieces in each channel of the split rolling process have different diameters and cannot be clamped at the same time. It can also be used for conveying and clamping round bars. By adjusting the upper roller structure to meet the clamping of different specifications, the number of times the roller rings are replaced is reduced, and the non-production time is shortened.

[0008] The purpose of the utility model is achieved in this way. A multi-channel pinch roller device comprises a pinch roller body, the pinch roller body comprises a lower roller structure, the lower roller structure comprises a lower roller body capable of rotating to support and convey a rolled piece, the central axis of the lower roller body is horizontal and arranged perpendicularly to the conveying direction of the rolled piece, the lower roller body is connected with a rotating driving structure capable of driving it to rotate around the central axis, the lower roller body is also connected with a lower roller adjustment structure capable of driving it to rise and fall; a plurality of upper roller structures capable of moving and adjusting along the central axis direction of the lower roller body are arranged at intervals above the lower roller structure, each of the upper roller structures comprises an upper roller body capable of moving downward to cooperate with the lower roller body to clamp the rolled piece, each of the upper roller bodies is separately connected with an upper roller adjustment structure capable of driving it to rise and fall; an inlet duct and an outlet duct are respectively arranged on both sides of the lower roller body along the conveying direction of the rolled piece.

[0009] In a preferred embodiment of the present invention, the clamping roller body also includes an upper frame and a lower frame, the lower frame is fixedly supported on the base, and the upper frame is connected to the lower frame so as to be movable along the central axis direction of the lower roller body; each upper roller adjustment structure is connected to the upper frame, and the lower roller adjustment structure is connected to the lower frame.

[0010] In a preferred embodiment of the utility model, each of the upper roller adjustment structures includes an upper roller driving cylinder arranged above the upper roller body and an upper roller swing frame arranged on one side of the upper roller body, the first end of the upper roller swing frame is hinged to the upper frame, the second end of the upper roller swing frame is hinged to the upper roller body, and the third end of the upper roller swing frame is connected to the bottom end of the upper roller driving cylinder; the top end of the upper roller driving cylinder is connected to the upper frame; the upper roller driving cylinder telescopes and drives the upper roller swing frame to swing to drive the upper roller body to rise and fall.

[0011] In a preferred embodiment of the utility model, the upper frame includes an upper column and a top beam, the upper column is detachably connected to an upper swing frame connecting seat, and the first end of the upper roller swing frame is hinged to the upper swing frame connecting seat; the top beam is detachably connected to an upper roller cylinder connecting seat, and the top end of the upper roller drive cylinder is hinged to the upper roller cylinder connecting seat.

[0012] In a preferred embodiment of the present invention, the number of the lower roller adjustment structures is two, which are respectively connected to the axial ends of the lower roller body.

[0013] In a preferred embodiment of the utility model, the lower roller adjustment structure includes a lower roller adjustment drive structure and a lower roller swing frame arranged below the lower roller body; the first end of the lower roller swing frame is hinged to the lower frame, the second end of the lower roller swing frame is hinged to the lower roller adjustment drive structure, and the lower roller body is hinged between the first end and the second end of the lower roller swing frame.

[0014] In a preferred embodiment of the present invention, the lower roller adjustment drive structure includes an adjusting screw structure, and the adjusting screw structure includes a first screw, a second screw and an adjusting nut, the first end of the first screw is hinged to the lower frame, the second end of the first screw is rotatably sleeved on the first end of the adjusting nut from bottom to top, the second end of the adjusting nut is telescopically sleeved on the first end of the second screw, and the second end of the second screw is hinged to the second end of the lower roller swing frame; the rotation of the adjusting nut drives the second screw to extend and retract to drive the lower roller swing frame to swing.

[0015] In a preferred embodiment of the present utility model, the lower frame includes a lower column and a bottom beam, the lower column is detachably connected to a lower swing frame connecting seat, and the first end of the lower roller swing frame is hinged to the lower swing frame connecting seat; the bottom beam is connected to a screw connecting seat, and the first end of the first screw is hinged to the screw connecting seat.

[0016] In a preferred embodiment of the present utility model, the rotation driving structure includes a motor, a gear box and a rotation center shaft, the rotation center shaft is penetrated through the lower roller body, one end of the rotation center shaft is connected to the gear box through a retractable universal coupling, and the gear box is connected to the motor; the motor drives the gear box to drive the rotation center shaft and the lower roller body to rotate and transport the rolled piece.

[0017] In a preferred embodiment of the present invention, the inlet conduit and the outlet conduit are adjustably connected to the lower frame via quick-change brackets.

[0018] As described above, the multi-channel pinch roller device of the utility model has the following beneficial effects:

[0019] The utility model is mainly used for a new multi-slice rolling process with controlled rolling and controlled cooling, and can also be used for a single-channel pinch roller for replacing multiple roller rings; multiple upper roller structures are independently controlled, which is more conducive to the transportation of multi-slice rolled pieces, auxiliary rolling mill bite and auxiliary shearing; the spacing between each upper roller body and the lower roller body can be adjusted independently to meet the clamping of rolled pieces of different specifications, ensuring that each split rolled piece can be effectively clamped and conveyed, thereby improving product quality; multiple channels meet the needs of rolled pieces of various specifications, avoiding multiple replacements of roller rings back and forth, reducing non-production time, and improving operating efficiency; each upper roller structure can be adjusted laterally to ensure that the rolled piece center, pinch center and conveying center are on the same line, thereby ensuring the quality of the rolled piece; reducing steel piling accidents that occur during the transportation of rolled pieces, and is more conducive to the stability of the rolling mill bite and shearing of multi-slice rolled pieces, thereby ensuring smooth production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following drawings are only intended to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0021] Figure 1 : It is a top view of the multi-channel pinch roller device of the utility model.

[0022] Figure 2 :for Figure 1 Medium AA view.

[0023] Figure 3 :for Figure 1 Center B view.

[0024] Figure 4 : Schematic diagram of pinch rollers in traditional process.

[0025] In the figure:

[0026] 1. Base; 2. Motor; 3. Gearbox;

[0027] 4. Pinch roller body;

[0028] 41. lower roller structure; 411. lower roller body; 412. lower roller adjustment drive structure; 4121. first screw rod; 4122. second screw rod; 4123. adjustment nut; 413. lower roller swing frame;

[0029] 42. Upper roller structure; 421. Upper roller body; 422. Upper roller driving cylinder; 423. Upper roller swing frame;

[0030] 43. Quick-change bracket;

[0031] 44, lower frame; 441, lower column; 442, bottom beam; 443, lower swing frame connecting seat; 444, screw connecting seat;

[0032] 45, upper frame; 451, upper column; 452, top beam; 453, upper swing frame connecting seat; 454, upper roller cylinder connecting seat;

[0033] 5. Inlet duct;

[0034] 6. Outlet duct;

[0035] 7. Rolled products;

[0036] 81. pinch roller base; 82. existing motor; 83. existing gear box; 84. existing pinch roller body; 841. existing lower roller; 842. existing upper roller. DETAILED DESCRIPTION

[0037] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation methods of the utility model are now described with reference to the accompanying drawings.

[0038] The specific implementation of the utility model described herein is only used to explain the purpose of the utility model, and cannot be understood as a limitation of the utility model in any way. Under the guidance of the utility model, technicians can conceive of any possible deformation based on the utility model, which should be regarded as belonging to the scope of the utility model. It should be noted that when an element is referred to as "arranged on" another element, it can be directly on the other element or there can also be a central element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a central element at the same time. The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two elements, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes and do not represent the only implementation method.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0040] like Figures 1 to 3 As shown, the utility model provides a multi-channel pinch roller device, including a pinch roller body 4, the pinch roller body 4 includes a lower roller structure 41, the lower roller structure 41 includes a lower roller body 411 that can rotate to support and convey the rolled piece, the central axis of the lower roller body 411 is horizontal and arranged perpendicular to the conveying direction of the rolled piece, the lower roller body 411 is connected to a rotation driving structure that can drive it to rotate around the central axis, and the lower roller body 411 is also connected to a lower roller adjustment structure that can drive it to rise and fall; a plurality of upper roller structures 42 that can move (transversely shift) and adjust along the central axis direction of the lower roller body are arranged at intervals above the lower roller structure 41. In a specific embodiment of the utility model, the multi-channel pinch roller device is a five-channel pinch roller, that is, the number of the upper roller structures 42 is 5;

[0041] Each upper roller structure 42 includes an upper roller body 421 that can move downward to cooperate with the lower roller body 411 to clamp the rolled piece (in some embodiments, a ring body is provided on the upper roller body 421 to form a roller ring. For high-quality steel single-channel pinching, the upper roller can also be called a roller ring). Each upper roller body 421 is separately connected to an upper roller adjustment structure that can drive it to rise and fall; the lower roller body 411 is provided with an inlet duct 5 and an outlet duct 6 on both sides along the conveying direction of the rolled piece. The transported rolled piece passes through the inlet duct 5, the pinch roller body 4 and the outlet duct 6 in sequence.

[0042] When the rolled piece has not entered the multi-channel pinch roller device of the utility model, the upper roller body 421 is in a high position, the lower roller body 411 is in a steel passing position, and the rolled piece is smoothly conveyed through; when the multi-channel pinch roller device receives a clamping action instruction, the upper roller body 421 is driven by the respective upper roller adjustment structure to be lowered from a high position to a low position, thereby clamping the rolled piece, and the clamping force can be adjusted; when clamping is not required, the upper roller adjustment structure retracts to drive the upper roller body 421 back to a high position, and the high and low positions of the upper roller body 421 can be detected by a proximity switch (existing technology) Feedback signal. The drive of each upper roller body 421 is driven separately by the upper roller adjustment structure, which solves the problem that the cut rolled piece cannot be clamped due to the size of the diameter.

[0043] Each upper roller structure 42 can be moved (transversely shifted) and adjusted along the central axis direction of the lower roller body to ensure that the center of the rolled product, the clamping center and the conveying center are in the same line, thereby ensuring the quality of the rolled product.

[0044] Roller rings of different specifications are set in multiple channels. By quickly changing the upper roller position, it is avoided to change the roller rings back and forth multiple times when producing round steels of different specifications.

[0045] The multi-channel pinch roller device of the utility model is mainly used for the new multi-slice rolling process of controlled rolling and controlled cooling, and can also be used for single-channel pinch rollers for replacing multi-roller rings; multiple upper roller structures are independently controlled, which is more conducive to the transportation of multi-slice rolled pieces, auxiliary rolling mill bite and auxiliary shearing; the spacing between each upper roller body and the lower roller body can be adjusted independently to meet the clamping of rolled pieces of different specifications, ensuring that each split rolled piece can be effectively clamped and conveyed, thereby improving product quality; multiple channels meet the needs of rolled pieces of various specifications, avoiding multiple replacement of roller rings back and forth, reducing non-production time, and improving operation rate; each upper roller structure can be adjusted laterally to ensure that the rolled piece center, pinching center and conveying center are on the same line, thereby ensuring the quality of the rolled piece; reducing steel piling accidents occurring during the transportation of rolled pieces, and being more conducive to the stability of the rolling mill bite and shearing of multi-slice rolled pieces, thereby ensuring smooth production.

[0046] Further, if Figure 2 , Figure 3 As shown, the clamping roller body 4 also includes an upper frame 45 and a lower frame 44. The lower frame 44 is fixedly supported on the base 1, and the upper frame 45 is connected to the lower frame 44 so as to be movable along the central axis direction of the lower roller body 411; each upper roller adjustment structure is connected to the upper frame 45, and the lower roller adjustment structure is connected to the lower frame 44.

[0047] The upper frame 45 can be translated as a whole by half of the cutting interval according to the position requirements of the cut rolled piece, ensuring that the centers of all upper rollers can always be aligned with the center of each rolled piece.

[0048] The upper frame 45 can move along the central axis direction of the lower roller body 411, so as to realize the rapid lateral movement of the upper roller structure 42, thereby ensuring that the center of the rolled product, the clamping center and the conveying center are in the same line, thereby ensuring the quality of the rolled product.

[0049] The upper frame 45 can be manually moved horizontally to ensure that the upper roller body 421 is aligned with the rolled piece. According to the needs, the upper frame can also be hydraulically or electrically moved horizontally, hydraulically locked or spring-locked to achieve the alignment of the upper roller body 421 with the rolled piece.

[0050] Further, if Figure 2 , Figure 3As shown, each upper roller adjustment structure includes an upper roller driving cylinder 422 (cylinder) arranged above the upper roller body 421 and an upper roller swing frame 423 (the upper roller body 421 is a free roller, and all free rollers are installed on the upper roller swing frame 423) arranged on one side of the upper roller body 421, the first end of the upper roller swing frame 423 is hinged to the upper frame 45, the second end of the upper roller swing frame 423 is hinged to the upper roller body 421, and the third end of the upper roller swing frame 423 is connected to the bottom end of the upper roller driving cylinder 422; the top end of the upper roller driving cylinder 422 is connected to the upper frame 45; the upper roller driving cylinder 422 telescopes and drives the upper roller swing frame 423 to swing to drive the upper roller body 421 to rise and fall.

[0051] Further, if Figure 2 , Figure 3 As shown, the upper frame 45 includes an upper column 451 and a top beam 452. The upper column 451 is detachably connected to an upper swing frame connecting seat 453, and the first end of the upper roller swing frame 423 is hinged to the upper swing frame connecting seat 453; the top beam 452 is detachably connected to an upper roller cylinder connecting seat 454, and the top end of the upper roller driving cylinder 422 is hinged to the upper roller cylinder connecting seat 454.

[0052] The roller bearings at each hinge point are lubricated centrally.

[0053] Furthermore, there are two lower roller adjustment structures, which are respectively connected to the two axial ends of the lower roller body 411 .

[0054] The pinch roller body 4 is supported by a frame structure and has good frame rigidity; the lower roller body 411 adopts double support in consideration of the cutting spacing, thereby increasing the body rigidity and transmission strength of the lower roller body 411 and improving its service life.

[0055] Further, if Figure 2 , Figure 3 As shown, the lower roller adjustment structure includes a lower roller adjustment drive structure 412 and a lower roller swing frame 413 arranged below the lower roller body 411; the first end of the lower roller swing frame 413 is hinged to the lower frame 44, the second end of the lower roller swing frame 413 is hinged to the lower roller adjustment drive structure 412, and the lower roller body 411 is hinged between the first end and the second end of the lower roller swing frame 413.

[0056] Further, if Figure 3As shown, the lower roller adjustment drive structure 412 includes an adjusting screw structure, which includes a first screw 4121, a second screw 4122 and an adjusting nut 4123. The first end of the first screw 4121 is hinged to the lower frame 44, the second end of the first screw 4121 is rotatably sleeved on the first end of the adjusting nut 4123 from bottom to top, the second end of the adjusting nut 4123 is telescopically sleeved on the first end of the second screw 4122, and the second end of the second screw 4122 is hinged to the second end of the lower roller swing frame 413; the rotation of the adjusting nut 4123 drives the second screw 4122 to telescope and retract to drive the lower roller swing frame 413 to swing.

[0057] According to the specifications of the rolled product, the roll surface of the lower roll body 411 can be adjusted to a reasonable height from the rolling center line by adjusting the screw structure.

[0058] Further, if Figure 3 As shown, the lower frame 44 includes a lower column 441 and a bottom beam 442. The lower column 441 is detachably connected to a lower swing frame connecting seat 443, and the first end of the lower roller swing frame 413 is hinged to the lower swing frame connecting seat 443; the bottom beam 442 is connected to a screw connecting seat 444, and the first end of the first screw 4121 is hinged to the screw connecting seat 444.

[0059] Further, if Figure 1 , Figure 2 As shown, the rotation driving structure includes a motor 2, a gear box 3 and a rotation center shaft. The rotation center shaft is arranged in the lower roller body 411. One end of the rotation center shaft is connected to the gear box 3 through a retractable universal coupling. The gear box 3 is connected to the motor 2. The motor 2 drives the gear box 3 to drive the rotation center shaft and the lower roller body 411 to rotate and transport the rolled piece. The motor 2 and the gear box 3 are fixedly installed on a fixed support.

[0060] The motor 2 is connected to the input shaft of the gear box through a coupling, and the output shaft of the gear box is connected to the lower roller body 411 through a retractable universal coupling.

[0061] Further, if Figure 3 As shown, the inlet duct 5 and the outlet duct 6 are adjustably connected to the lower frame 44 via quick-change brackets 43 respectively.

[0062] The inlet duct 5 and the outlet duct 6 are installed on the lower frame 44 through a quick-change bracket. The quick-change bracket can be quickly replaced as a whole according to the position of the cut rolled piece to ensure that the center of the rolled piece is aligned with the center of the duct to meet different cutting process requirements.

[0063] The use process of the utility model is as follows:

[0064] Before production, according to the size of the rolled piece, the roller surface height of the lower roller body 411 is adjusted through the lower roller adjustment drive structure 412 to make the rolled piece pass at an appropriate height; according to the cutting spacing, the positioning of the upper frame 45 is adjusted to make the center of each upper roller body 421 face the center of the rolled piece; according to the cutting spacing, the corresponding quick-change brackets of the inlet duct and the outlet duct are installed to ensure that the center of each inlet duct 5 and outlet duct 6 faces the center of the rolled piece and the center of the upper roller.

[0065] Before the rolled piece enters the pinch roller body 4, the upper roller drive cylinder 422 retracts, and each upper roller body 421 is in a high position, and the position detection is fed back by the proximity switch. Before the rolled piece enters the pinch roller body 4, the motor 2 and the gear box 3 drive the lower roller body 411 to operate continuously, and the rolled piece is transported through smoothly.

[0066] When the multi-channel pinch roller device receives the clamping action instruction, the corresponding upper roller drive cylinder 422 is controlled to move according to the cutting position, and the upper roller drive cylinder 422 extends to make the upper roller body 421 in a low position to clamp the rolled piece for transportation. When it is detected that there is no need to clamp the rolled piece for transportation, the upper roller drive cylinder 422 retracts to make the upper roller body 421 in a high position, and the lower roller body 411 continues to operate to transport the rolled piece.

[0067] As described above, the multi-channel pinch roller device of the utility model has the following beneficial effects:

[0068] The utility model is mainly used for a new multi-slice rolling process with controlled rolling and controlled cooling, and can also be used for a single-channel pinch roller for replacing multiple roller rings; multiple upper roller structures are independently controlled, which is more conducive to the transportation of multi-slice rolled pieces, auxiliary rolling mill bite and auxiliary shearing; the spacing between each upper roller body and the lower roller body can be adjusted independently to meet the clamping of rolled pieces of different specifications, ensuring that each split rolled piece can be effectively clamped and conveyed, thereby improving product quality; multiple channels meet the needs of rolled pieces of various specifications, avoiding multiple replacements of roller rings back and forth, reducing non-production time, and improving operating efficiency; each upper roller structure can be adjusted laterally to ensure that the rolled piece center, pinch center and conveying center are on the same line, thereby ensuring the quality of the rolled piece; reducing steel piling accidents that occur during the transportation of rolled pieces, and is more conducive to the stability of the rolling mill bite and shearing of multi-slice rolled pieces, thereby ensuring smooth production.

[0069] The above description is only an illustrative embodiment of the present invention and is not intended to limit the scope of the present invention. Any equivalent changes and modifications made by any person skilled in the art without departing from the concept and principle of the present invention shall fall within the scope of protection of the present invention.

Claims

1. A multi-channel pinch roller device, characterized in that: It includes a pinch roller body, which includes a lower roller structure. The lower roller structure includes a lower roller body that can rotate to support and convey the rolled piece. The central axis of the lower roller body is horizontal and perpendicular to the conveying direction of the rolled piece. The lower roller body is connected to a rotating drive structure that can drive it to rotate around the central axis, and the lower roller body is also connected to a lower roller adjustment structure that can drive it to rise and fall. A plurality of upper roller structures that can move and adjust along the central axis direction of the lower roller body are arranged at intervals above the lower roller structure. Each of the upper roller structures includes an upper roller body that can move downward to cooperate with the lower roller body to clamp the rolled piece, and each of the upper roller bodies is separately connected to an upper roller adjustment structure that can drive it to rise and fall. An inlet duct and an outlet duct are respectively arranged on both sides of the lower roller body along the conveying direction of the rolled piece.

2. The multi-channel pinch roller device according to claim 1, characterized in that: The pinch roller body also includes an upper frame and a lower frame, the lower frame is fixedly supported on a base, and the upper frame is connected to the lower frame so as to be movable along the central axis direction of the lower roller body; each upper roller adjustment structure is connected to the upper frame, and the lower roller adjustment structure is connected to the lower frame.

3. The multi-channel pinch roller device according to claim 2, characterized in that: Each of the upper roller adjustment structures includes an upper roller driving cylinder arranged above the upper roller body and an upper roller swing frame arranged on one side of the upper roller body, the first end of the upper roller swing frame is hinged to the upper frame, the second end of the upper roller swing frame is hinged to the upper roller body, and the third end of the upper roller swing frame is connected to the bottom end of the upper roller driving cylinder; the top end of the upper roller driving cylinder is connected to the upper frame; the upper roller driving cylinder telescopes and drives the upper roller swing frame to swing to drive the upper roller body to rise and fall.

4. The multi-channel pinch roller device according to claim 3, characterized in that: The upper frame includes an upper column and a top beam, the upper column is detachably connected to an upper swing frame connecting seat, and the first end of the upper roller swing frame is hinged to the upper swing frame connecting seat; the top beam is detachably connected to an upper roller cylinder connecting seat, and the top end of the upper roller drive cylinder is hinged to the upper roller cylinder connecting seat.

5. The multi-channel pinch roller device according to claim 2, characterized in that: The number of the lower roller adjustment structures is two, which are respectively connected to the axial ends of the lower roller body.

6. The multi-channel pinch roller device according to claim 5, characterized in that: The lower roller adjustment structure includes a lower roller adjustment drive structure and a lower roller swing frame arranged below the lower roller body; the first end of the lower roller swing frame is hinged to the lower frame, the second end of the lower roller swing frame is hinged to the lower roller adjustment drive structure, and the lower roller body is hinged between the first end and the second end of the lower roller swing frame.

7. The multi-channel pinch roller device according to claim 6, characterized in that: The lower roller adjustment drive structure includes an adjusting screw structure, and the adjusting screw structure includes a first screw, a second screw and an adjusting nut. The first end of the first screw is hinged to the lower frame, and the second end of the first screw is rotatably sleeved on the first end of the adjusting nut from bottom to top. The second end of the adjusting nut is telescopically sleeved on the first end of the second screw, and the second end of the second screw is hinged to the second end of the lower roller swing frame; the rotation of the adjusting nut drives the second screw to extend and retract to drive the lower roller swing frame to swing.

8. The multi-channel pinch roller device according to claim 7, characterized in that: The lower frame includes a lower column and a bottom beam, the lower column is detachably connected to a lower swing frame connecting seat, and the first end of the lower roller swing frame is hinged to the lower swing frame connecting seat; the bottom beam is connected to a screw connecting seat, and the first end of the first screw is hinged to the screw connecting seat.

9. The multi-channel pinch roller device according to claim 2, characterized in that: The rotation driving structure includes a motor, a gear box and a rotation center shaft. The rotation center shaft is inserted into the lower roller body. One end of the rotation center shaft is connected to the gear box through a retractable universal coupling. The gear box is connected to the motor. The motor drives the gear box to drive the rotation center shaft and the lower roller body to rotate and transport the rolled piece.

10. The multi-channel pinch roller device according to claim 2, characterized in that: The inlet conduit and the outlet conduit are respectively adjustably connected to the lower frame through quick-change brackets.

Images