Lifting roller way before cold shearing

Abstract

The utility model 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 roller way assembly comprises a roller way, a bearing seat, a driving mechanism and a lifting mechanism. The two ends of the roller way 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. According to the utility model, the high and low positions of a single group of roller ways can be independently adjusted, the height of the roller ways can be timely adjusted according to different steel incoming conditions, and smooth operation of steel on the roller ways is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel bar processing shearing equipment technical field, concretely is a kind of cold shears before lifting roller way. BACKGROUND

[0002] Cold shears before roller way as the key part of connecting upstream production link and cold shearing equipment, can ensure that steel is smoothly transitioned from heating, rolling and other processes to cold shearing process, avoid production interruption caused by poor delivery, it is closely matched with the equipment of previous and subsequent processes, realizes the fast transfer of steel in different production stages.

[0003] The existing cold shears before conveying roller way, in view of the irregular shape of steel, such as bending, distortion and the like, combined with the uneven length of tail fixed size, lead to the incoherent delivery of steel, cause steel to stay on roller way and not advance and other problems, therefore, design a kind of cold shears before conveying roller way capable of adapting to different steel incoming situation, the length of tail fixed size is the problem faced by the person skilled in the art. UTILITARIAN CONTENT

[0004] The utility model aims at providing a kind of cold shears before lifting roller way, to solve the above-mentioned background technique in the irregular shape of steel, combined with the uneven length of tail fixed size, lead to the incoherent delivery of steel, stay on roller way and not advance and other problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A kind of cold shears before lifting roller way, comprising:

[0007] Chassis, the chassis extends along first direction, the chassis is close to the feeding platform of shearing machine;

[0008] Comb tooth plate assembly, the comb tooth plate assembly extends along first direction, the comb tooth plate assembly is installed on the upper end surface of chassis, the comb tooth plate assembly includes multiple comb tooth parts, first gap for lifting roller way assembly lifting is between every two adjacent described comb tooth parts, the comb tooth part has multiple comb teeth, steel is placed in the interval of adjacent two described comb teeth, the comb tooth plate assembly is flush with the feeding platform of cold shearing machine, so that steel is conveyed to cold shearing machine by comb tooth plate assembly, the first direction is perpendicular to second direction;By setting comb tooth, the steel to be cut can be accurately positioned, ensure the accuracy of shearing position, make it keep stable position in shearing process;

[0009] A plurality of lifting roller assembly groups are arranged at intervals on the chassis and correspond to the first gaps one by one, each of the lifting roller assembly groups comprises 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 arranged on the chassis in a lifting manner 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 with the roller to drive the roller to rotate around its axis, and the lifting mechanism is installed on the chassis, and the output end of the lifting mechanism is connected with the bearing seat to drive the bearing seat to lift. The lifting roller assembly group independently adjusts the lifting of a single roller on the basis of the existing roller, drives the bearing seat to lift through the lifting mechanism, adjusts the height of the roller protruding from the first gap, and makes the roller fully contact the steel on the comb plate assembly, so that the steel smoothly enters the shearing hole for shearing.

[0010] Further, a damping assembly is further included, 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 the two ends of the roller.

[0011] Further, the damping assembly comprises a damping support plate, a damping spring and a fixing rod; the damping support plate is located below the bearing seat and arranged on the chassis in a lifting manner at the two sides of the damping support plate, the damping support plate is connected with the bearing seat through the fixing rod, the damping spring is sleeved on the fixing rod, the first end of the damping spring is connected with the bearing seat, the second end of the damping spring is connected with the damping support plate, and the output end of the lifting mechanism is connected with the damping support plate. When the roller is subjected to shearing impact or vibration, the damping spring can absorb and store energy, play a buffering role, reduce the impact force on the bearings of the roller, and protect the key parts of the equipment from damage; the damping support plate is used for preventing excessive displacement of the spring during compression or stretching, so as to ensure that the spring works within the designed stroke range, and the limiting effect of the damping support plate can avoid failure of the spring due to excessive deformation.

[0012] Further, a limiting device is further included, which is arranged on the chassis and located at the two sides of the bearing seat, and used for limiting loosening or deviation of the bearing seat during operation. When the equipment is running, the bearing seat may be loosened or deviated due to factors such as vibration and impact, and the limiting device can effectively prevent this situation.

[0013] Further, a support seat is further included, which is fixed to the bottom of the end of the comb plate assembly close to the cold shearing machine and detachably installed on the installation base of the cold shearing machine to transmit the acting force borne by the comb plate assembly to the installation base.

[0014] Further, the support seat comprises a support part and a connecting part, the support part is supported on the bottom of the comb plate assembly near the end of the cold shearing machine, and the connecting part is detachably connected with the mounting base of the cold shearing machine.

[0015] Further, the lifting mechanism comprises a linkage rod, a handle and two screw rod elevators, the two screw rod elevators are oppositely arranged along the second direction and are mounted on the chassis, the axis of the linkage rod extends along the second direction, and the two ends of the linkage rod are respectively connected with the worm and gear mechanisms of the two screw rod elevators, the screw rod of each screw rod elevator extends along the vertical direction and is connected with the corresponding bearing seat through a screw nut to drive the bearing seat to lift, and the handle is connected with the worm and gear mechanism of one of the screw rod elevators to drive the two screw rod elevators to synchronously lift by rotating the handle. The linkage rod is arranged to ensure that the two screw rod elevators can synchronously lift, avoid the situation that the roller way is inclined or unstable due to asynchronization, and prevent the screw rod elevators from shaking or deviating during operation, thereby improving the stability of the lifting process. By rotating the handle, the screw rod elevators can be lifted, lowered and stopped, so that the operation is more accurate and convenient.

[0016] Further, the chassis comprises a base and a plurality of roller fixing frame groups, the base extends along the first direction, the plurality of roller fixing frame groups are arranged at intervals along the first direction on the base, the bearing seat is slidably arranged between two adjacent roller fixing frame groups, the lifting mechanism is arranged in the interval between the two adjacent roller fixing frame groups, and the comb plate assembly is mounted on the upper end surface of the roller fixing frame group. The roller fixing frame group is arranged to connect various roller components, connect multiple rollers together, and form a continuous conveying system. Moreover, the comb plate assembly is convenient to install, so that the entire roller lifting system is more compact and integrated.

[0017] Further, two adjacent roller fixing frame groups are oppositely mounted with sliding rails distributed along the vertical direction, sliding grooves are formed on the two sides of the bearing seat, and the bearing seat is slidably connected with the sliding rails through the sliding grooves on the two sides. The bearing seat slides along the vertical direction under the drive of the screw rod elevator to lift the roller way.

[0018] Further, the roller fixing frame group comprises two roller fixing frames, the two roller fixing frames are distributed along the second direction and are oppositely arranged on the base.

[0019] Further, the comb tooth part further comprises comb plates, the comb plates are mounted on the upper end surface of the roller fixing frame, there is a first gap between two adjacent comb plates, the comb teeth are located on the upper end surface of the comb plate, and the comb plate is flush with the feeding platform of the shearing machine.

[0020] Further, the comb plate assembly comprises a comb plate; the comb plate is installed on the upper end surface of the roller bed fixing frame, a plurality of comb tooth sections are arranged on the comb plate, and the comb plate is flush with the feeding platform of the cold shearing machine.

[0021] Further, the driving mechanism comprises a motor, the motor is installed on the bearing seat, and the output shaft of the motor is connected with one end of the roller bed.

[0022] Compared with the prior art, the utility model has the following advantages:

[0023] 1. The cold shearing front lifting roller bed comprises a chassis, a comb plate assembly and a lifting roller bed assembly which are installed on the chassis; the comb plate assembly comprises a plurality of comb tooth sections, a first gap is arranged between two adjacent comb tooth sections, a plurality of comb teeth which are arranged in a second direction and extend in a first direction are arranged on the comb tooth section, the steel material is placed in the interval between two adjacent comb teeth, the comb teeth can accurately position the steel material, the steel material can maintain a stable position during conveying and shearing, and the accuracy of the shearing position is ensured.

[0024] 2. The cold shearing front lifting roller bed further comprises a damping assembly which is matched with the bearing seat or only matched with the bearing seat close to the cold shearing machine, and the damping assembly specifically comprises a damping support plate, a damping spring and a fixing rod; the damping support plate is located below the bearing seat, the two ends of the fixing rod are connected with the damping support plate and the bearing seat respectively, the damping spring is sleeved on the outer periphery of the fixing rod, and the two ends of the damping spring are respectively in abutment with the damping support plate and the bearing seat. When the roller bed is subjected to shearing impact or vibration, the damping spring can absorb and store energy, plays a buffering role, reduces the impact force borne by the bearing of the roller bed, and protects the key components of the equipment from damage; the damping support plate is used for preventing the spring from excessive displacement during compression or stretching, so as to ensure that the spring works within the designed stroke range, and the spring can be prevented from being invalid due to excessive deformation through the limiting effect of the damping support plate.

[0025] 3. The cold shearing front lifting roller further comprises a limiting device, the limiting device is installed on the base frame and abuts against both sides of the bearing seat, and is used for ensuring the accuracy of the bearing seat in the installation position. When the equipment is running, the bearing seat may be loose or deviated due to vibration, impact and other factors, and the limiting device can effectively prevent this situation. The cold shearing front lifting roller further comprises a supporting seat, the supporting seat is fixed to the bottom of the one end of the comb plate assembly close to the cold shearing machine, and is detachably installed on the installation base of the cold shearing machine, the supporting seat is used for bearing the weight of the equipment or the component and various forces generated during work, and uniformly transmits the forces to the installation base, thereby reducing the influence of vibration on the surrounding environment and other equipment. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Figure 3 is a side view of the cold shearing front lifting roller in the embodiment of the utility model;

[0027] Figure 2 Figure 4 is a front view of the cold shearing front lifting roller in the embodiment of the utility model;

[0028] Figure 3 Figure 5 is a top view of the cold shearing front lifting roller in the embodiment of the utility model;

[0029] Figure 4 Figure 6 is a structure schematic view of the lifting mechanism in the cold shearing front lifting roller in the embodiment of the utility model; Figure 2 Figure 7 is an enlarged schematic view of A in figure 6;

[0030] Figure 5 Figure 8 is a structure schematic view of the lifting mechanism in the cold shearing front lifting roller in the embodiment of the utility model;

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

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0033] It should be noted that in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be further discussed and described in the description of the subsequent figures.

[0036] Example 1:

[0037] like Figures 1-3 The cold shear front lifting roller conveyor shown includes: a base frame 1, a comb plate assembly, and multiple sets of lifting roller conveyor assemblies; wherein the base frame 1 extends along a first direction (the first direction can be referred to in the attached diagram). Figure 3 (in the X direction), the base frame 1 is close to the loading platform of the shearing machine; the comb plate assembly extends along the first direction, the comb plate assembly is installed on the upper end face of the base frame 1, the comb plate assembly includes multiple comb sections 2, each adjacent two comb sections 2 have a first gap for lifting the lifting roller assembly, the comb section has multiple comb teeth 201 spaced apart along the second direction and extending along the first direction, the steel is placed in the interval between two adjacent comb teeth 201, the comb plate assembly is flush with the loading platform of the cold shearing machine so that the steel is conveyed to the cold shearing machine through the comb plate assembly, the first direction is perpendicular to the second direction; by setting the comb teeth, the steel being sheared can be accurately positioned to ensure the accuracy of the shearing position and keep it in a stable position during the shearing process.

[0038] The lifting roller conveyor assemblies are spaced apart on the base frame and correspond one-to-one with the first gap. Each set of lifting roller conveyor assemblies includes a roller conveyor 3, a bearing seat 4, a drive mechanism 5, and a lifting mechanism 6. The axis of the roller conveyor 3 extends along the second direction. Both ends of the roller conveyor 3 are flexibly mounted on the base frame through the bearing seats 4. The roller conveyor 3 protrudes from the first gap to contact the steel on the comb plate assembly. The drive mechanism 5 is mounted on the bearing seat 4, and the output end of the drive mechanism 5 is connected to the roller conveyor 3 to drive the roller conveyor 3 to rotate around its own axis. The lifting mechanism 6 is mounted 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 conveyor 3.

[0039] Due to the irregular shape of the steel material, such as bending, twisting and the like, and the uneven length of the tail size, the steel material is not smoothly transported, and the steel material is stranded on the roller bed and does not advance, which reduces the working efficiency of the cold shearing equipment and affects the production of the entire production line and the product quality of the steel material. The lifting roller assembly capable of independently adjusting the lifting of a single roller bed is designed on the basis of the existing roller bed, the bearing seat is lifted by the lifting mechanism, thereby adjusting the height of the roller bed protruding from the first gap, so that the roller bed is in full contact with the steel material on the comb plate assembly, and the steel material is smoothly fed into the shearing hole for shearing.

[0040] As shown in Figure 1 and Figure 2 The base frame 1 in the embodiment includes a base 101 and a plurality of roller bed fixing frame groups; the base 101 extends along a first direction, and the plurality of roller bed fixing frame groups are arranged at intervals along the first direction on the base 101, the bearing seat 4 is slidably arranged between two adjacent roller bed fixing frame groups, the lifting mechanism 6 is arranged in the interval between the two adjacent roller bed fixing frame groups, and the comb plate assembly is installed on the upper end face of the roller bed fixing frame group. By arranging the roller bed fixing frame group, the functions of connecting various roller bed components can be achieved, and a plurality of roller beds are connected together to form a continuous conveying system. Moreover, the comb plate assembly is convenient to install, so that the entire roller bed lifting system is more compact and integrated.

[0041] Specifically, the roller bed fixing frame group includes two roller bed fixing frames 102, and the two roller bed fixing frames 102 are fixed to the base 1 and oppositely arranged along a second direction. By this arrangement, the roller bed fixing frames in each roller bed fixing frame group are respectively located at the two ends of the roller bed, which facilitates the installation of corresponding bearing groups, lifting mechanisms and the like.

[0042] The comb tooth part 2 further includes a comb plate 202, the comb plate 202 is installed on the upper end face of the roller bed fixing frame, and there is a first gap between two adjacent comb plates 202, the comb tooth 201 is located on the upper end face of the comb plate 202, and the comb plate 202 is flush with the feeding platform of the shearing machine. The comb plate assembly is divided into multiple comb tooth parts 2, the comb tooth part 2 includes the comb plate 202 and the comb tooth 201 arranged on the comb plate 202, and there is a first gap between each comb tooth part 2, the roller bed protrudes from the first gap to contact the steel material on the comb plate, thereby conveying the steel material to the cold shearing machine, and multiple output plates are arranged for convenient maintenance and replacement. Figure 2As shown, each roller bed fixing frame 102 comprises a crossbeam and a vertical rod, the crossbeam is located at the top of the vertical rod and is fixed on the base 101 through the vertical rod, and the comb plate 202 is fixed on the crossbeam. In this embodiment, the size of the first gap is defined, which is slightly larger than the length of the roller bed 3, and the width is > the radius of the roller bed and ≤ the diameter of the roller bed. Through this definition, the height of the roller bed 3 protruding from the first gap can be controlled, and the height of the roller bed is prevented from being too high to affect the stable and continuous conveying of the steel.

[0043] In order to ensure the stability of the bearing seat 4, a slide rail 103 is arranged on the adjacent two roller bed fixing frames 102 in the vertical direction, and a sliding groove is formed on both sides of the bearing seat 4, and the bearing seat 4 is connected with the slide rail 103 through the sliding groove on both sides. Under the drive of the screw rod elevator 603, the bearing seat slides in the vertical direction, and the lifting of the roller bed is realized.

[0044] In this embodiment, the lifting mechanism 6 comprises a linkage rod 601, a handle 602 and two screw rod elevators 603, the two screw rod elevators 603 are arranged opposite to each other in the second direction and are installed on the base or fixed on the adjacent roller bed fixing frames 102, the axis of the linkage rod 601 extends in the second direction, and the two ends of the linkage rod 601 are connected with the worm and gear mechanisms of the two screw rod elevators 603 respectively, the screw rod 604 of each screw rod elevator 603 extends in the vertical direction and is connected with the corresponding bearing seat 4 through the screw rod nut, so as to drive the bearing seat 4 to lift, and the handle 602 is connected with the worm and gear mechanism of one of the screw rod elevators 603, so as to drive the two screw rod elevators 603 to lift synchronously by rotating the handle 602. The linkage rod 601 is arranged to ensure that the two screw rod elevators 603 can realize synchronous lifting action, so as to avoid the inclination or instability of the roller bed caused by asynchronization, and also can prevent the screw rod elevators 603 from shaking or deviating during operation, and improve the stability of the lifting process. By rotating the handle 602, the screw rod elevators can realize the actions of lifting, descending and stopping, so that the operation is more accurate and convenient.

[0045] In this embodiment, the driving mechanism 5 comprises a motor, the motor is installed on the bearing seat 4, and the output shaft of the motor is connected with one end of the roller bed, so that the motor can lift synchronously with the bearing seat 4 and the roller bed 3.

[0046] As shown in Figure 2 and Figure 4 In this embodiment, a damping assembly 7 is further arranged, which is matched with all the bearing seats 4 on the base or only with a group of bearing seats 4 close to the cold shearing machine. By arranging the damping assembly, the shear impact on the bearings at both ends of the roller bed can be weakened, so as to avoid the damage of the bearings caused by shear vibration force.

[0047] Specifically, the damping assembly 7 comprises a damping support plate 701, a damping spring 702 and a fixed rod 703; the damping support plate 701 is located below the bearing seat 4, and both sides of the damping support plate 701 are also provided with sliding grooves for sliding connection with the sliding rails 103 on the roller bed fixing frame 102; the damping support plate 701 is connected with the bearing seat 4 through the fixed rod 703; the damping spring 702 is sleeved on the fixed rod 703, and the first end of the damping spring 702 is connected with the bearing seat 4, and the second end of the damping spring 702 is connected with the damping support plate 701; the output end of the lifting mechanism 6 is connected with the damping support plate 701. When the roller bed 3 is subjected to shearing impact or vibration, the damping spring 702 can absorb and store energy, play a buffering role, reduce the impact force borne by the bearings of the roller bed 3, and protect the key components of the equipment from damage; the damping support plate 701 is used to prevent the damping spring 702 from excessive displacement during compression or stretching, so as to ensure that the damping spring 702 works within the designed stroke range, and through the limiting effect of the damping support plate 701, the damping spring 702 can be prevented from being invalid due to excessive deformation.

[0048] The bearing seat 4 in the embodiment comprises an upper fixed plate and a lower fixed plate, the upper and lower fixed plates are fastened through a pin, and the bearings of the roller bed 3 are arranged between the upper and lower fixed plates, wherein the lower fixed plate is connected with the damping support plate 701 through the fixed rod. The bearing seat 4 can provide stable support for the bearings of the roller bed 3, ensure that the bearings maintain correct positions during operation, do not deviate or shake, prevent the bearings from moving axially or radially during roller bed operation, and ensure smooth operation of the roller bed.

[0049] The embodiment also comprises a limiting device 8, which is arranged on the roller bed fixing frame 102 and located on both sides of the bearing seat 4, and is used to limit loosening or deviation of the bearing seat 4 during operation. Specifically, the limiting device 8 can be a positioning bolt, which is tightened on the roller bed fixing frame 102 and simultaneously presses the shaft side seat. During equipment operation, due to factors such as vibration and impact, the bearing seat 4 may be loosened or deviated, and the positioning bolt can effectively prevent this situation.

[0050] In the embodiment, the support seat 9 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 used to bear the weight of the equipment or component and various forces generated during work, and uniformly transmit these forces to the installation base, reduce the influence of vibration on the surrounding environment and other equipment, solve the shearing quality problem caused by the deformation of the comb plate, and ensure the smooth running of the steel on the roller way.

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

[0052] Specifically, when working:

[0053] The steel processed by the upstream process is transported to the comb plate, and each steel is independently placed in the interval of the comb. Under the guidance of the comb, the roller drives the steel to move forward to ensure the accurate transportation position of each steel. When the steel is irregular or the tail size is uneven, the handle is rotated to quickly adjust the required height of the roller by the lifting mechanism to adapt to the transportation requirements of steel of different sizes, ensure the smooth entry of the steel into the shearing hole for shearing, improve the working efficiency of the cold shearing equipment, the yield of the entire production line, and the product quality of the steel. The cold shearing front lifting roller fully solves the existing cold shearing front roller conveying problem, designs a lifting mechanism that can independently adjust the height of a single roller, and installs a damping spring at the roller bearing seat to avoid damage to the bearing caused by shearing vibration force. The front end of the comb plate and the shearing hole base are provided with a detachable and replaceable support seat 9 to solve the shearing quality problem caused by the deformation of the comb plate and ensure the smooth running of the steel on the roller way.

[0054] Embodiment 2:

[0055] The embodiment is the same as embodiment 1 except the following technical solutions:

[0056] The comb plate assembly in the embodiment is different from that in embodiment 1, and specifically, the comb plate assembly includes one comb plate, the comb plate is installed on the upper end surface of the roller fixed frame, a plurality of combs are arranged on the comb plate, a first gap is formed on the comb plate between adjacent combs, and the comb plate is flush with the feeding platform of the cold shearing machine. By adjusting the comb plate assembly to be one whole comb plate, the installation is facilitated and the assembly time is saved.

[0057] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the present application, which should be limited only by the appended claims and their equivalents.

Claims

1. A cold shear pre-lift roller bed, characterized in that, The utility model relates to a cold shearing machine feeding device, comprising: a base frame extending along a first direction; a comb plate assembly extending along the first direction, mounted on the upper end surface of the base frame, comprising a plurality of comb sections, each two adjacent comb sections having a first gap for lifting a roller bed assembly, each comb section having a plurality of combs spaced along a second direction and extending along the first direction, a steel material being placed in the space between adjacent combs, the comb plate assembly being flush with the feeding platform of the cold shearing machine so that the steel material is conveyed to the cold shearing machine through the comb plate assembly, the first direction being perpendicular to the second direction; a plurality of groups of roller bed assemblies, each group of roller bed assemblies being spaced apart on the base frame and corresponding to a first gap, each group of roller bed assemblies comprising a roller bed, a bearing seat, a driving mechanism and a lifting mechanism, the axis of the roller bed extending along the second direction, the two ends of the roller bed being liftable on the base frame through the bearing seat, the roller bed protruding from the first gap to contact the steel material on the comb plate assembly, the driving mechanism being arranged on the bearing seat, the output end of the driving mechanism being connected with the roller bed to drive the roller bed to rotate around its axis, the lifting mechanism being mounted on the base frame, the output end of the lifting mechanism being connected with the bearing seat to drive the bearing seat to lift.

2. The cold shear pre-lift roller table of claim 1, wherein: Further comprising a damping assembly cooperating with the bearing seat or only cooperating with the bearing seat near the cold shearing machine to weaken the shear impact on the bearings at the two ends of the roller bed.

3. The cold shear pre-lift roller table of claim 2, wherein: The damping assembly comprises a damping support plate, a damping spring and a fixing rod, the damping support plate being located below the bearing seat and liftable on the base frame at both sides of the damping support plate, the damping support plate being connected with the bearing seat through the fixing rod, the damping spring being sleeved on the fixing rod, the first end of the damping spring being connected with the bearing seat, the second end of the damping spring being connected with the damping support plate, the output end of the lifting mechanism being connected with the damping support plate.

4. The cold shear pre-lift roller table of claim 1, wherein: Further comprising a limiting device arranged on the base frame and located at both sides of the bearing seat to limit the loosening or deviation of the bearing seat during operation.

5. The cold shear pre-lift roller table of claim 1, wherein: Further comprising a support seat fixed to the bottom of the end of the comb plate assembly near the cold shearing machine and detachably mounted on the mounting base of the cold shearing machine to transmit the acting force borne by the comb plate assembly to the mounting base.

6. The cold shear pre-ascending roller table according to claim 5, characterized in that: The support seat comprises a support part and a connecting part connected with each other, the support part being supported on the bottom of the end of the comb plate assembly near the cold shearing machine, the connecting part being detachably connected with the mounting base of the cold shearing machine.

7. The cold shear pre-lift roller table of claim 1, wherein: The lifting mechanism comprises a linkage rod, a handle and two screw rod elevators, the two screw rod elevators being oppositely arranged along the second direction and mounted on the base frame, the axis of the linkage rod extending along the second direction, the two ends of the linkage rod being respectively connected with the worm and gear mechanisms of the two screw rod elevators, the screw rod of each screw rod elevator extending along the vertical direction and being connected with the corresponding bearing seat through a screw nut to drive the bearing seat to lift, the handle being connected with the worm and gear mechanism of one of the screw rod elevators to drive the two screw rod elevators to synchronously lift by rotating the handle.

8. The cold shear pre-lift roller table of claim 1, wherein: The base frame comprises a base and a plurality of roller bed fixing frame groups; the base extends along a first direction, and the plurality of roller bed fixing frame groups are arranged at intervals along the first direction on the base; the bearing seat is slidably arranged between two adjacent roller bed fixing frame groups; the lifting mechanism is arranged in the interval between the two adjacent roller bed fixing frame groups; and the comb plate assembly is mounted on the upper end face of the roller bed fixing frame group.

9. The cold shear pre-ascending roller table according to claim 8, characterized in that: The comb tooth part further comprises a comb plate, the comb plate is mounted on the upper end face of the roller bed fixing frame, and there is a first gap between two adjacent comb plates; the comb tooth is located on the upper end face of the comb plate; and the comb plate is flush with the feeding platform of the shearing machine.

10. The cold shear pre- lift roller table of claim 8, wherein: The comb plate assembly comprises a comb plate; the comb plate is mounted on the upper end face of the roller bed fixing frame; a plurality of comb tooth parts 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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