Lifting roller way before cold shearing

Abstract

The invention relates to the technical field of steel bar machining and shearing equipment, and discloses a lifting roller bed before cold shearing, which comprises a bottom frame, a comb plate assembly and a plurality of groups of lifting roller bed assemblies, the comb plate assembly is installed on the upper end face of the bottom frame and comprises a plurality of comb tooth parts, and a first gap used for lifting of the lifting roller way assembly is formed between every two adjacent comb tooth parts. The lifting roller way assemblies are arranged on the bottom frame at intervals and correspond to the first gaps in a one-to-one mode, and each lifting rail assembly comprises a roller way, a bearing seat, a driving mechanism and a lifting mechanism. The two ends of the roller way 3 are arranged on the bottom frame in a liftable mode through bearing seats, the roller way protrudes out of the first gap so as to make contact with steel on the comb plate assembly, the driving mechanism is used for driving the roller way to rotate around the axis of the roller way, and the lifting mechanism is used for driving the bearing seats to ascend and descend so as to adjust the height of the roller way. The high-low position of the single-set roller way can be independently adjusted, the height of the roller way can be adjusted in time according to different steel incoming conditions, and it is guaranteed that steel smoothly runs on the roller way.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar processing and shearing equipment, in particular to a lifting roller table before cold shearing. Background Art

[0002] As a key part connecting the upstream production links and cold shearing equipment, the cold shearing front roller can ensure the smooth transition of steel from heating, rolling and other processes to the cold shearing process, avoiding production interruptions due to poor transportation. It cooperates closely with the equipment in the previous and next processes to realize the rapid transfer of steel in different production stages.

[0003] The existing cold shearing conveyor roller, in view of the irregular shape of steel, such as bending, twisting and other states, and the uneven length of the tail, leads to unsmooth steel transportation and causes the steel to be stuck on the roller and not move forward. Therefore, designing a cold shearing conveyor roller that can adapt to different steel incoming conditions and tail lengths is a problem faced by technical personnel in this field. Summary of the invention

[0004] The purpose of the present invention is to provide a lifting roller before cold shearing to solve the problems in the above-mentioned background technology that the irregular shape of the steel and the uneven length of the tail end lead to the unsmooth transportation of the steel and the retention and failure to move forward on the roller.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A lifting roller table before cold shearing, comprising:

[0007] A base frame, the base frame extending along a first direction, the base frame being close to a loading platform of the shearing machine;

[0008] A comb plate assembly, the comb plate assembly extends along a first direction, the comb plate assembly is installed on the upper end surface of the base frame, the comb plate assembly includes a plurality of comb tooth portions, a first gap for lifting and lowering the lifting roller assembly is provided between each two adjacent comb tooth portions, the comb tooth portion has a plurality of comb teeth arranged at intervals along a second direction and extending along the first direction, the steel is placed in the interval between two adjacent comb teeth, the comb plate assembly is flush with the feeding platform of the cold shearing machine, so that the steel is transported to the cold shearing machine through the comb plate assembly, and the first direction is perpendicular to the second direction; by providing the comb teeth, the sheared steel can be accurately positioned to ensure the accuracy of the shearing position, so that it can maintain a stable position during the shearing process;

[0009] Multiple groups of lifting roller assemblies are arranged at intervals on the chassis and correspond to the first gaps one by one. Each group of lifting track assemblies includes a roller, a bearing seat, a driving mechanism and a lifting mechanism. The axis of the roller extends along the second direction. The two ends of the roller are lifted and lowered on the chassis through the bearing seat. The roller protrudes from the first gap to contact the steel on the comb plate assembly. The driving mechanism is arranged on the bearing seat. The output end of the driving mechanism is connected to the roller to drive the roller to rotate around its own axis. The lifting mechanism is installed on the chassis. The output end of the lifting mechanism is connected to the bearing seat to drive the bearing seat to lift and lower. Based on the existing rollers, a lifting roller assembly that can independently adjust the lifting and lowering of a single group of rollers is designed. The bearing seat is driven to lift and lower through the lifting mechanism, thereby adjusting the height of the roller protruding from the first gap, so that the roller is fully in contact with the steel on the comb plate assembly, ensuring that the steel smoothly enters the shear hole for shearing.

[0010] Furthermore, it also includes a shock absorbing component, which cooperates with the bearing seat or only cooperates with the bearing seat close to the cold shearing machine to weaken the shearing impact on the bearings at both ends of the roller.

[0011] Furthermore, the shock-absorbing assembly includes a shock-absorbing support plate, a shock-absorbing spring and a fixed rod; the shock-absorbing support plate is located below the bearing seat and the two sides of the shock-absorbing support plate can be lifted and lowered on the bottom frame, the shock-absorbing support plate is connected to the bearing seat through a fixed rod, the shock-absorbing spring is sleeved on the fixed rod, and the first end of the shock-absorbing spring is connected to the bearing seat, the second end of the shock-absorbing spring is connected to the shock-absorbing support plate, and the output end of the lifting mechanism is connected to the shock-absorbing support plate. When the roller is subjected to shear shock or vibration, the shock-absorbing spring can absorb and store energy, play a buffering role, reduce the impact force on the roller bearing, and protect the key components of the equipment from damage; the shock-absorbing support plate is used to prevent the spring from excessive displacement during compression or extension, thereby ensuring that the spring works within the designed travel range, and the spring can be prevented from failing due to excessive deformation through the limiting effect of the shock-absorbing support plate.

[0012] Furthermore, it also includes a limit device, which is arranged on the base frame and located on both sides of the bearing seat, and is used to limit the bearing seat from loosening or deflecting during operation. When the equipment is running, due to factors such as vibration and impact, the bearing seat may become loose or deflected, and the limit device can effectively prevent this from happening.

[0013] Furthermore, it also includes a support base, which is fixed to the bottom of the comb plate assembly near one end of the cold shear machine, and the support base can be detachably installed on the installation base of the cold shear machine to transmit the force borne by the comb plate assembly to the installation base.

[0014] Furthermore, the support seat includes a supporting portion and a connecting portion which are connected to each other, the supporting portion is supported on the bottom of the comb plate assembly near one end of the cold shearing machine, and the connecting portion is detachably connected to the installation base of the cold shearing machine.

[0015] Furthermore, the lifting mechanism includes a linkage rod, a handle and two screw lifts, the two screw lifts are arranged relatively along the second direction and installed on the base frame, the axis of the linkage rod extends along the second direction, and the two ends of the linkage rod are respectively connected to the worm gear mechanisms of the two screw lifts, the screw of each screw lift extends in the vertical direction and is connected to the corresponding bearing seat through a screw nut to drive the bearing seat to rise and fall, and the handle is connected to the worm gear mechanism of one of the screw lifts to drive the two screw lifts to rise and fall synchronously by rotating the handle. The linkage rod is provided to ensure that the two screw lifts can achieve synchronous lifting and lowering actions, avoid the situation where the roller is tilted or unstable due to asynchronism, and prevent the screw lift from shaking or offsetting during operation, thereby improving the stability of the lifting process. By turning the handle, the screw lift can achieve the actions of rising, falling, stopping, etc., making the operation more precise and convenient.

[0016] Furthermore, the chassis includes a base and a plurality of roller fixing frame groups; the base extends along a first direction, a plurality of roller fixing frame groups are arranged on the base at intervals along the first direction, the bearing seat is slidably arranged between two adjacent roller fixing frame groups, the lifting mechanism is arranged in the interval between two adjacent roller fixing frame groups, and the comb plate assembly is installed on the upper end surface of the roller fixing frame group. The roller fixing frame group can be arranged to connect various roller components, and multiple rollers can be connected together to form a continuous conveying system. It is also convenient to install the comb plate assembly, making the entire roller lifting system more compact and integrated.

[0017] Furthermore, two adjacent roller table fixing frame groups are relatively installed with slide rails distributed in the vertical direction, and slide grooves are provided on both sides of the bearing seat, and the bearing seat is slidably connected with the slide rails through the slide grooves on both sides thereof. Under the drive of the screw lifter, the bearing seat slides in the vertical direction to realize the lifting and lowering of the roller table.

[0018] Furthermore, the roller fixing frame group includes two roller fixing frames, and the two roller fixing frames are distributed along the second direction and are arranged opposite to the base.

[0019] Furthermore, the comb tooth portion also includes a comb tooth plate, which is installed on the upper end surface of the roller fixing frame, and there is a first gap between two adjacent comb tooth plates. The comb teeth are located on the upper end surface of the comb tooth plate, and the comb tooth plate is flush with the feeding platform of the shearing machine.

[0020] Furthermore, the comb plate assembly includes a comb plate; the comb plate is installed on the upper end surface of the roller fixing frame, a plurality of comb tooth portions are arranged on the comb plate, and the comb plate is flush with the loading platform of the cold shearing machine.

[0021] Furthermore, the driving mechanism includes a motor, the motor is mounted on a bearing seat, and an output shaft of the motor is connected to one end of the roller table.

[0022] The present invention has the following advantages over the prior art:

[0023] 1. The lifting roller before cold shearing of the present invention comprises a base frame, a comb plate assembly mounted on the base frame and a lifting track assembly; the comb plate assembly comprises a plurality of comb tooth sections, a first gap is provided between two adjacent comb tooth sections, a plurality of comb teeth are provided on the comb tooth section and are spaced apart along the second direction and extend along the first direction, and the steel is placed in the gap between two adjacent comb teeth. By arranging the comb teeth, the steel can be accurately positioned so that the steel can maintain a stable position during the conveying and shearing process, thereby ensuring the accuracy of the shearing position. The lifting roller assembly comprises a roller, a bearing seat, a driving mechanism and a lifting mechanism; wherein the axis of the roller extends along the second direction, is mounted on the base frame through the bearing seat and protrudes from the first gap, the driving mechanism is used to drive the roller to rotate around its own axis, and the lifting mechanism is connected to the bearing seat, and the height of the roller protruding from the first gap can be adjusted through the lifting mechanism so that it fully contacts the steel. The lifting rollers before cold shearing of the present invention can independently adjust the height of a single group of rollers. According to different incoming steel conditions (irregular shapes, such as bending, twisting, etc.), the height of the rollers can be adjusted in time to make the rollers fully contact with the steel, ensuring that the steel, driven by the rollers, smoothly enters the shearing hole of the cold shearing machine along the comb tooth interval for shearing.

[0024] 2. The lifting roller before cold shearing of the present invention is also provided with a shock absorbing assembly, which cooperates with the bearing seat or only cooperates with the bearing seat close to the cold shearing machine. The shock absorbing assembly specifically includes a shock absorbing support plate, a shock absorbing spring and a fixed rod; the shock absorbing support plate is located below the bearing seat, and the two ends of the fixed rod are respectively connected to the shock absorbing support plate and the bearing seat, the shock absorbing spring is sleeved on the outer periphery of the fixed rod, and the two ends of the shock absorbing spring are respectively abutted against the shock absorbing support plate and the bearing seat. When the roller is subjected to shear shock or vibration, the shock absorbing spring can absorb and store energy, play a buffering role, reduce the impact force on the roller bearing, and protect the key components of the equipment from damage; the shock absorbing support plate is used to prevent the spring from excessive displacement during compression or extension, thereby ensuring that the spring works within the designed stroke range, and the limiting effect of the shock absorbing support plate can prevent the spring from failing due to excessive deformation.

[0025] 3. The lifting roller before cold shearing of the present invention is also provided with a limiting device, which is installed on the base frame and abuts against both sides of the bearing seat to ensure the accuracy of the installation position of the bearing seat. When the equipment is running, the bearing seat may become loose or offset due to factors such as vibration and impact, and the limiting device can effectively prevent this from happening. The lifting roller before cold shearing of the present invention is also provided with a support seat, which is fixed to the bottom of the comb plate assembly near one end of the cold shearing machine and can be detachably installed on the installation base of the cold shearing machine. The support seat is used to bear the weight of the equipment or components and various forces generated during operation, and transmit these forces evenly to the installation base to reduce the impact of vibration on the surrounding environment and other equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an axonometric view of the lifting roller table before cold shearing in an embodiment of the present invention;

[0027] Figure 2 It is a front view of the lifting roller table before cold shearing in an embodiment of the present invention;

[0028] Figure 3 It is a top view of the lifting roller table before cold shearing in an embodiment of the present invention;

[0029] Figure 4 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0030] Figure 5 It is a structural schematic diagram of the lifting mechanism in the lifting roller table before cold shearing in an embodiment of the present invention;

[0031] In the figure: 1. chassis; 101. base; 102. roller fixing frame; 103. slide rail; 2. comb tooth portion; 201. comb teeth; 202. comb tooth plate; 3. roller; 4. bearing seat; 5. driving mechanism; 6. lifting mechanism; 601. linkage rod; 602. handle; 603. screw lifter; 604. screw; 7. shock absorbing assembly; 701. shock absorbing support plate; 702. shock absorbing spring; 703. fixing rod; 8. limiting device; 9. support seat; 901. support portion; 902. connecting portion. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that, in the description of the present invention, the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0034] In addition, it should be understood that for the convenience of description, the sizes of various components shown in the drawings are not drawn according to the actual proportional relationship.

[0035] It should be noted that like reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not need to be further discussed and described in detail in the description of the subsequent drawings.

[0036] Embodiment 1:

[0037] like Figure 1-Figure 3 The cold shear front lifting roller shown in the figure comprises: a base frame 1, a comb plate assembly and a plurality of lifting roller assembly groups; wherein the base frame 1 extends along a first direction (the first direction can be referred to in the attached Figure 3 The bottom frame 1 is close to the feeding platform of the shearing machine; the comb plate assembly extends along the first direction, the comb plate assembly is installed on the upper end surface of the bottom frame 1, the comb plate assembly includes a plurality of comb tooth parts 2, and a first gap for lifting and lowering the roller table assembly is provided between each two adjacent comb tooth parts 2, the comb tooth part has a plurality of comb teeth 201 arranged at intervals along the second direction and extending along the first direction, and the steel is placed in the interval between two adjacent comb teeth 201, the comb plate assembly is flush with the feeding platform of the cold shearing machine, so that the steel is transported to the cold shearing machine through the comb plate assembly, and the first direction is perpendicular to the second direction; by arranging the comb teeth, the sheared steel can be accurately positioned to ensure the accuracy of the shearing position so that it can maintain a stable position during the shearing process.

[0038] The lifting roller assemblies are arranged at intervals on the base frame and correspond one to one with the first gaps. Each group of the lifting track assemblies includes a roller 3, a bearing seat 4, a driving mechanism 5 and a lifting mechanism 6. The axis of the roller 3 extends along the second direction, and the two ends of the roller 3 are lifted and lowered on the base frame through the bearing seat 4. The roller 3 protrudes from the first gap to contact the steel on the comb plate assembly. The driving mechanism 5 is arranged on the bearing seat 4, and the output end of the driving mechanism 5 is connected to the roller 3 to drive the roller 3 to rotate around its own axis. The lifting mechanism 6 is installed on the base frame 1, and the output end of the lifting mechanism 6 is connected to the bearing seat 4 to drive the bearing seat 4 to rise and fall, thereby adjusting the height of the roller 3.

[0039] Due to the irregular shape of steel, such as bending, twisting and other states, and the uneven length of the tail, the steel is not smoothly transported, causing the steel to be stuck on the roller and not move forward, which will reduce the working efficiency of the cold shearing equipment, affecting the output of the entire production line and the product quality of the steel. The present invention designs a lifting roller assembly that can independently adjust the lifting of a single group of rollers on the basis of the existing rollers. The lifting mechanism drives the bearing seat to lift and lower, thereby adjusting the height of the roller protruding from the first gap, so that the roller is fully in contact with the steel on the comb plate assembly, ensuring that the steel smoothly enters the shear hole for shearing.

[0040] like Figure 1 and Figure 2 As shown, the chassis 1 in this embodiment includes a base 101 and a plurality of roller fixing frame groups; the base 101 extends along a first direction, and the plurality of roller fixing frame groups are arranged on the base 101 at intervals along the first direction, the bearing seat 4 is slidably arranged between two adjacent roller fixing frame groups, the lifting mechanism 6 is arranged in the interval between two adjacent roller fixing frame groups, and the comb plate assembly is installed on the upper end surface of the roller fixing frame group. By setting up the roller fixing frame group, it can play the role of connecting various roller components, connecting multiple rollers together to form a continuous conveying system. It is also convenient to install the comb plate assembly, making the entire roller lifting system more compact and integrated.

[0041] Specifically, the roller fixing frame group includes two roller fixing frames 102, which are fixed to the base 1 and arranged opposite to each other along the second direction. Through this arrangement, the roller fixing frames in each roller fixing frame group are respectively located at both ends of the roller, which is convenient for installing the corresponding bearing group, lifting mechanism, etc.

[0042] The comb tooth portion 2 also includes a comb tooth plate 202, which is mounted on the upper end surface of the roller fixing frame, and there is a first gap between two adjacent comb tooth plates 202, and the comb teeth 201 are located on the upper end surface of the comb tooth plate 202, and the comb tooth plate 202 is flush with the feeding platform of the shearing machine. The comb tooth plate assembly is divided into multiple sections of the comb tooth portion 2, and the comb tooth portion 2 includes a comb tooth plate 202 and comb teeth 201 arranged on the comb tooth plate 202, and there is a first gap between each section of the comb tooth portion 2. The roller protrudes from the first gap to contact the steel on the comb tooth plate, thereby transporting the steel to the cold shearing machine. Multiple output plates are provided for easy maintenance and replacement. Figure 2 As shown, each roller fixing frame 102 includes a crossbeam and a vertical rod. The crossbeam is located at the top of the vertical rod and is fixed to the base 101 through the vertical rod, and the comb plate 202 is fixed to the crossbeam. In this embodiment, the size of the first gap is limited, and its length is slightly larger than the length of the roller 3, and its width is greater than the radius of the roller and less than or equal to the diameter of the roller. Through this limitation, the height of the roller 3 protruding from the first gap can be controlled to avoid the roller height being too high, which affects the stable and continuous transportation of steel.

[0043] In this embodiment, in order to ensure the stability of the lifting of the bearing seat 4, slide rails 103 distributed in the vertical direction are installed on two adjacent roller table fixing frames 102, and slide grooves are opened on both sides of the bearing seat 4. The bearing seat 4 is slidably connected to the slide rails 103 through the slide grooves on both sides. The bearing seat slides in the vertical direction under the drive of the screw lift 603 to realize the lifting of the roller table.

[0044] In this embodiment, the lifting mechanism 6 includes a linkage rod 601, a handle 602 and two screw lifts 603. The two screw lifts 603 are arranged relatively along the second direction and installed on the base or fixed on the adjacent roller fixed frame 102. The axis of the linkage rod 601 extends along the second direction, and the two ends of the linkage rod 601 are respectively connected to the worm gear mechanism of the two screw lifts 603. The screw 604 of each screw lift 603 extends in the vertical direction and is connected to the corresponding bearing seat 4 through a screw nut, thereby driving the bearing seat 4 to rise and fall. The handle 602 is connected to the worm gear mechanism of one of the screw lifts 603, so as to drive the two screw lifts 603 to rise and fall synchronously by rotating the handle 602. The linkage rod 601 is provided to ensure that the two screw lifts 603 can achieve synchronous lifting action, avoid the situation that the roller is tilted or unstable due to asynchronism, and prevent the screw lift 603 from shaking or offsetting during operation, thereby improving the stability of the lifting process. By turning the handle 602, the screw lift can be raised, lowered, stopped and other actions can be achieved, making the operation more precise and convenient.

[0045] In this embodiment, the driving mechanism 5 includes a motor, which is installed on the bearing seat 4. The output shaft of the motor is connected to one end of the roller. Through this arrangement, the motor can rise and fall synchronously with the bearing seat 4 and the roller 3.

[0046] like Figure 2 and Figure 4 As shown, the present embodiment also includes a shock absorbing assembly 7, and the shock absorbing assembly 7 is matched with all the bearing seats 4 on the base frame one by one or only matched with a group of bearing seats 4 close to the cold shearing machine. By setting the shock absorbing assembly, the shear impact on the bearings at both ends of the roller can be weakened, thereby preventing the roller bearings from being damaged by shear vibration force.

[0047] Specifically, the shock absorbing assembly 7 includes a shock absorbing support plate 701, a shock absorbing spring 702 and a fixing rod 703; the shock absorbing support plate 701 is located below the bearing seat 4 and slide grooves are also provided on both sides of the shock absorbing support plate 701 for sliding connection with the slide rail 103 on the roller fixing frame 102, the shock absorbing support plate 701 is connected to the bearing seat 4 through the fixing rod 703, the shock absorbing spring 702 is sleeved on the fixing rod 703, and the first end of the shock absorbing spring 702 is connected to the bearing seat 4, the second end of the shock absorbing spring 702 is connected to the shock absorbing support plate 701, and the output end of the lifting mechanism 6 is connected to the shock absorbing support plate 701. When the roller 3 is subjected to shear shock or vibration, the shock-absorbing spring 702 can absorb and store energy, play a buffering role, reduce the impact force on the bearings of the roller 3, and protect the key components of the equipment from damage; the shock-absorbing support plate 701 is used to prevent the shock-absorbing spring 702 from excessive displacement during compression or extension, thereby ensuring that the shock-absorbing spring 702 works within the designed stroke range. Through the limiting effect of the shock-absorbing support plate 701, the shock-absorbing spring 702 can be prevented from failing due to excessive deformation.

[0048] The bearing seat 4 in this embodiment includes an upper fixing plate and a lower fixing plate, which are fastened by pins, and the bearing of the roller 3 is arranged between the upper fixing plate and the lower fixing plate, wherein the lower fixing plate is connected to the shock-absorbing support plate 701 through a fixing rod. The bearing seat 4 can provide stable support for the bearing of the roller 3, ensure that the bearing maintains the correct position during operation, does not deviate or shake, prevents the bearing from axial or radial movement during the operation of the roller, and ensures the smooth operation of the roller.

[0049] The present embodiment also includes a limit device 8, which is arranged on the roller fixing frame 102 and located on both sides of the bearing seat 4, and is used to limit the loosening or displacement of the bearing seat 4 during operation. Specifically, the limit device 8 can be a positioning bolt, which is tightened on the roller fixing frame 102 and presses the shaft side seat. When the equipment is running, the bearing seat 4 may be loosened or deflected due to factors such as vibration and impact, and the positioning bolt can effectively prevent this from happening.

[0050] Due to the lack of support and positioning between the comb plate and the lower shearing opening, the comb plate is deformed when shearing the tail material, and the vibration generated during shearing will cause damage to the roller bearing. Due to the unsmooth transportation of steel, the working efficiency of the cold shearing equipment will be reduced, affecting the output of the entire production line and the product quality of steel. This embodiment also includes a support seat 9, which is fixed to the bottom of the comb plate assembly near one end of the cold shearing machine, and the support seat 9 is detachably installed on the installation base of the cold shearing machine. The detachable and replaceable support seat 9 is installed to bear the weight of the equipment or components and various forces generated during operation, and these forces are evenly transmitted to the installation base, thereby reducing the impact of vibration on the surrounding environment and other equipment, solving the shearing quality problem caused by the deformation of the comb plate, and ensuring smooth operation of the steel on the roller.

[0051] Specifically, the support seat 9 includes a supporting portion 901 and a connecting portion 902 connected to each other, wherein the supporting portion 901 is supported at the bottom of the comb plate assembly near one end of the cold shearing machine, and the connecting portion 902 is detachably connected to the installation base of the cold shearing machine. The support seat 9 has a simple overall structure and is easy to install, and can effectively solve the deformation problem of the comb plate near the cold shearing machine.

[0052] Specific work:

[0053] The steel processed in the upstream process is transported to the comb plate, and each piece of steel is placed independently in the interval between the comb teeth. Under the guidance of the comb teeth, it is driven forward by the roller to ensure that each piece of steel is accurately transported. When the steel is irregular or the tail length is uneven, turn the handle to allow the lifting mechanism to quickly adjust the required height of the roller to meet the transportation needs of steel of different sizes, ensure that the steel enters the shear hole smoothly for shearing, and improve the working efficiency of the cold shearing equipment, the output of the entire production line, and the product quality of steel. This lifting roller before cold shearing fully solves the existing roller conveying problems before cold shearing. It is designed to have a lifting mechanism that can independently adjust the height of a single set of rollers, and install a shock-absorbing spring at the roller bearing seat to prevent the roller bearing from being damaged by shear vibration force. A detachable and replaceable support seat 9 is installed at the front end of the comb plate and the base of the shear mouth to solve the shear quality problem caused by the deformation of the comb plate and ensure the smooth operation of the steel on the roller.

[0054] Embodiment 2:

[0055] This embodiment is the same as Embodiment 1 except for the following technical solutions:

[0056] The comb plate assembly in this embodiment is different from that in the first embodiment. Specifically, the comb plate assembly includes a comb plate, which is mounted on the upper end surface of the roller table fixing frame. The comb plate is provided with multiple sections of comb teeth. A first gap is provided on the comb plate between adjacent comb teeth. The comb plate is flush with the feeding platform of the cold shearing machine. By adjusting the comb plate assembly to a whole comb plate, installation is facilitated and assembly time is saved.

[0057] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lifting roller table before cold shearing, characterized in that: include: a base frame extending along a first direction; A comb plate assembly, the comb plate assembly extends along a first direction, the comb plate assembly is mounted on the upper end surface of the base frame, the comb plate assembly includes a plurality of comb tooth portions, a first gap for lifting and lowering the lifting roller assembly is provided between each two adjacent comb tooth portions, the comb tooth portion has a plurality of comb teeth spaced along a second direction and extending along the first direction, the steel is placed in the gap between two adjacent comb teeth, the comb plate assembly is flush with the feeding platform of the cold shearing machine, so that the steel is transported to the cold shearing machine through the comb plate assembly, and the first direction is perpendicular to the second direction; A plurality of lifting roller assemblies are provided, the plurality of lifting roller assemblies are arranged at intervals on the base frame and correspond one to one with the first gaps. Each lifting track assembly comprises a roller, a bearing seat, a driving mechanism and a lifting mechanism. The axis of the roller extends along the second direction. Both ends of the roller are lifted and lowered on the base frame through the bearing seat. The roller protrudes from the first gap to contact the steel on the comb plate assembly. The driving mechanism is provided on the bearing seat. The output end of the driving mechanism is connected to the roller to drive the roller to rotate around its own axis. The lifting mechanism is installed on the base frame. The output end of the lifting mechanism is connected to the bearing seat to drive the bearing seat to lift and lower.

2. The lifting roller table before cold shearing according to claim 1 is characterized in that: It also includes a shock absorbing component, which is matched with the bearing seat or only matched with the bearing seat close to the cold shearing machine to weaken the shearing impact on the bearings at both ends of the roller.

3. The lifting roller table before cold shearing according to claim 2 is characterized in that: The shock absorbing assembly includes a shock absorbing support plate, a shock absorbing spring and a fixing rod; the shock absorbing support plate is located below the bearing seat and both sides of the shock absorbing support plate are liftably arranged on the base frame, the shock absorbing support plate and the bearing seat are connected by a fixing rod, the shock absorbing spring is sleeved on the fixing rod, and the first end of the shock absorbing spring is connected to the bearing seat, the second end of the shock absorbing spring is connected to the shock absorbing support plate, and the output end of the lifting mechanism is connected to the shock absorbing support plate.

4. The lifting roller table before cold shearing according to claim 1 is characterized in that: It also includes a limiting device, which is arranged on the base frame and located on both sides of the bearing seat, and is used to limit the loosening or deviation of the bearing seat during operation.

5. The lifting roller table before cold shearing according to claim 1 is characterized in that: It also includes a support base, which is fixed to the bottom of the comb plate assembly near one end of the cold shearing machine, and the support base can be detachably installed on the installation base of the cold shearing machine to transmit the force borne by the comb plate assembly to the installation base.

6. The lifting roller table before cold shearing according to claim 5 is characterized in that: The support seat comprises a supporting portion and a connecting portion which are connected to each other. The supporting portion is supported on the bottom of the comb plate assembly close to one end of the cold shearing machine, and the connecting portion is detachably connected to the installation base of the cold shearing machine.

7. The lifting roller table before cold shearing according to claim 1 is characterized in that: The lifting mechanism includes a linkage rod, a handle and two screw lifts. The two screw lifts are arranged opposite to each other along the second direction and installed on the base frame. The axis of the linkage rod extends along the second direction, and the two ends of the linkage rod are respectively connected to the worm gear mechanisms of the two screw lifts. The screw of each screw lift extends in the vertical direction and is connected to the corresponding bearing seat through a screw nut to drive the bearing seat to rise and fall. The handle is connected to the worm gear mechanism of one of the screw lifts to drive the two screw lifts to rise and fall synchronously by rotating the handle.

8. The lifting roller table before cold shearing according to claim 1 is characterized in that: The base frame includes a base and a plurality of roller fixing frame groups; the base extends along a first direction, and the plurality of roller fixing frame groups are arranged on the base at intervals along the first direction, the bearing seat is slidably arranged between two adjacent roller fixing frame groups, the lifting mechanism is arranged in the interval between two adjacent roller fixing frame groups, and the comb plate assembly is installed on the upper end surface of the roller fixing frame group.

9. The lifting roller table before cold shearing according to claim 8 is characterized in that: The comb tooth portion also includes a comb tooth plate, which is installed on the upper end surface of the roller fixing frame, and there is a first gap between two adjacent comb tooth plates. The comb teeth are located on the upper end surface of the comb tooth plate, and the comb tooth plate is flush with the feeding platform of the shearing machine.

10. The lifting roller table before cold shearing according to claim 8 is characterized in that: The comb plate assembly includes a comb plate; the comb plate is installed on the upper end surface of the roller fixing frame, a plurality of comb tooth portions are arranged on the comb plate, and the comb plate is flush with the feeding platform of the cold shearing machine.

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