Iron bar rolling device with limiting function

Abstract

The utility model discloses an iron bar rolling device with a limiting function, which comprises a transferring mechanism, a rolling mechanism, a limiting mechanism and a rolling mechanism, the flattening mechanism is arranged beside the flattening station of the transfer platform and comprises a rolling wheel set, a limiting block set, a rolling support and a lifting driving assembly, the rolling wheel set and the limiting block set are arranged on the rolling support, the rolling wheel set is located above the flattening station, the limiting block set is located below the flattening station, and the lifting driving assembly is arranged on the rolling support. The lifting driving assembly is connected with and drives the rolling support to ascend and descend, and then the rolling wheel set and the limiting block set are driven to ascend and descend synchronously. When the rolling wheel set ascends, the limiting block set extends upwards from the flattening station to define a limiting area, and when the rolling wheel set descends, the limiting block set retracts downwards from the flattening station. According to the iron bar rolling device, the flattening precision of the iron bar assembly can be improved.

Description

Technical Field

[0001] The utility model relates to capacitor manufacturing equipment, in particular to an iron bar rolling device with a limiting function. Background Art

[0002] When electrolytic capacitors are manufactured, it is usually necessary to weld the pins of the elements to the iron bars before manufacturing. After these manufacturing steps are completed, the pins of the elements welded to the iron bars need to be cut and sent to the next process. However, after the previous processing, the pins of the elements may be deformed, and there is a misalignment between the elements, that is, the elements on the iron bar are not on the same plane, which causes the robot to be unable to grasp the misaligned elements during cutting, causing the misaligned elements to fall to the ground after cutting. Therefore, before cutting, it is necessary to flatten the pins of each element by rolling so that the elements on the iron bar are on the same plane.

[0003] For example, the Chinese patent with patent number CN2022229632067 discloses an iron bar transferring and cutting device for an electrolytic capacitor, which comprises a transferring platform and a clamping mechanism, a transferring groove is provided on the upper surface of the transferring platform, the clamping mechanism is arranged on one side of the transferring platform, the clamping mechanism comprises a fixed frame, a movable frame and a driving device, the driving device is used to drive the movable frame to move vertically, a vertically arranged slider is fixed on one side of the fixed frame, a guide rail corresponding to the slider is fixed on the movable frame, at least one guide rod arranged horizontally is sleeved on the movable frame, a clamping portion is arranged at one end of each guide rod, an adjusting plate is fixed on the other end of the guide rod, an adjusting wheel is arranged on the adjusting plate, a vertically arranged inclined block is fixed on the other side of the fixed frame, the adjusting wheel abuts against the inclined block, and the clamping portion can be arranged above the movable groove. During operation, the driving device drives the mobile frame to rise vertically along the guide rail, and the mobile frame drives the guide rod, the clamping part, the adjusting plate and the adjusting wheel to rise. The adjusting wheel drives the adjusting plate and the guide rod to move laterally under the action of the inclined block, thereby making the clamping part at one end of the guide rod move laterally. Since the height of the previous process equipment before the foot cutting process is relatively high, the iron bar is generally taken and placed by the robot arm moving downward from the top of the clamping mechanism, and the clamping mechanism can realize that the clamping part rises while retreating laterally when the robot arm moves downward, so that the clamping part can avoid before the robot arm puts the iron bar. After the robot arm puts the iron bar, the clamping part is reset to clamp the iron bar.

[0004] However, when the robot arm places the iron bar on the transfer platform, due to precision errors and a certain degree of collision between the iron bar and the transfer platform when it falls, the iron bar will be offset from the clamping mechanism, resulting in the clamping part of the clamping mechanism being unable to be pressed onto the pin of the iron bar when it is lowered. Utility Model Content

[0005] In order to solve the above-mentioned deficiencies of the prior art, the utility model provides an iron bar rolling device with a limiting function, which can improve the flattening accuracy of the iron bar assembly.

[0006] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0007] An iron bar rolling device with a limiting function, comprising:

[0008] The transfer mechanism comprises a transfer platform, wherein the transfer platform is provided with a flattening station;

[0009] The flattening mechanism is arranged next to the flattening station of the transfer platform, and includes a rolling wheel group, a limit block group, a rolling bracket and a lifting drive assembly. The rolling wheel group and the limit block group are arranged on the rolling bracket, the rolling wheel group is located above the flattening station, and the limit block group is located below the flattening station. The lifting drive assembly is connected to drive the rolling bracket to rise and fall, thereby driving the rolling wheel group and the limit block group to rise and fall synchronously; when the rolling wheel group is raised, the limit block group also extends upward from the flattening station to enclose a limit area, and when the rolling wheel group is lowered, the limit block group also retracts downward from the flattening station.

[0010] Furthermore, the rolling wheel group includes a rolling main shaft, a rolling swing arm, a first rolling secondary shaft, a second rolling secondary shaft, a first rolling wheel and a second rolling wheel, the first rolling wheel and the second rolling wheel are parallel to the moving direction of the moving platform, and are arranged in sequence along the moving direction of the moving platform; the middle of the rolling swing arm is rotatably connected to the rolling bracket through the rolling main shaft, one end of the rolling swing arm is rotatably connected to the first rolling wheel through the first rolling secondary shaft, and the other end of the rolling swing arm is rotatably connected to the second rolling wheel through the second rolling secondary shaft.

[0011] Furthermore, the rolling wheel group also includes a swing limit block, which is fixedly arranged on the rolling bracket, and the swing limit block extends two swing limit parts toward the rolling swing arm respectively, and the two swing limit parts are respectively located above the two ends of the rolling swing arm.

[0012] Furthermore, the limit block group includes a plurality of rolling limit blocks, and the plurality of rolling limit blocks are distributed on the flattening station to enclose and form the limit area when extended.

[0013] Furthermore, the multiple rolling limit blocks are divided into two groups, each group includes at least two rolling limit blocks, the two groups of rolling limit blocks are respectively located at the two ends of the flattening station along the transfer direction, and the rolling limit blocks in the same group are respectively located on both sides of the flattening station along the lateral direction perpendicular to the transfer direction.

[0014] Furthermore, the upper ends of the plurality of rolling limit blocks are formed with an inclined surface facing the flattening station, so that the entrance of the limit area enclosed by the plurality of rolling limit blocks gradually shrinks from top to bottom.

[0015] Furthermore, the lifting drive assembly includes a fixed bracket, a lifting guide rail, a lifting cylinder and a lifting limit block, the lifting guide rail, the lifting cylinder and the lifting limit block are arranged on the fixed bracket, the lifting limit block is located below the lifting guide rail, and the rolling bracket is arranged on the lifting guide rail; the lifting cylinder is connected to drive the rolling bracket to lift and lower on the lifting guide rail; the rolling bracket is against the lifting limit block when it descends to the lowest position.

[0016] Furthermore, the transfer mechanism also includes a driving motor, a driving wheel, a synchronous transmission belt and multiple transfer wheels located below the transfer platform, the driving motor is connected to drive the driving wheel to rotate, and the synchronous transmission belt is connected and transmitted between the driving wheel and each of the transfer wheels; the transfer platform has a transfer groove, and multiple material groove openings are opened on the bottom of the transfer groove, and one material groove opening corresponds to one transfer wheel; each transfer wheel extends into the transfer groove from the corresponding material groove opening.

[0017] Furthermore, the iron bar rolling device also includes a transfer auxiliary mechanism, which is arranged next to the transfer platform and includes a plurality of transfer pressure wheel groups, and the plurality of transfer pressure wheel groups are sequentially arranged above the transfer platform along the transfer direction.

[0018] Furthermore, the transfer platform is also provided with a heating station, a foot cutting station, a discharging station and a waste discharging station in sequence in front of the flattening station along the transfer direction, and the iron bar rolling device also includes a heating mechanism, a foot cutting mechanism, a discharging mechanism and a waste channel correspondingly arranged next to the heating station, the foot cutting station, the discharging station and the waste discharging station on the transfer platform.

[0019] The utility model has the following beneficial effects: the iron bar rolling device of the utility model is additionally provided with a limit block group in the flattening mechanism, which is located below the flattening station of the transfer platform and is synchronously lifted and lowered with the rolling wheel group. The limit block assembly is used to enclose a limit area for placing the iron bar assembly on the flattening station, thereby avoiding positional displacement of the iron bar assembly when it is placed on the flattening station of the transfer platform by the feeding robot, and can improve the flattening accuracy of the rolling wheel group on the connecting iron bars on the iron bar assembly and the pins of each of the capacitor elements. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of the iron bar assembly provided by the utility model.

[0021] Figure 2 This is a schematic structural diagram of the iron bar rolling device provided by the utility model.

[0022] Figure 3 The utility model provides a schematic structural diagram of the conveying mechanism and the flattening structure of the iron bar rolling device.

[0023] Figure 4 for Figure 3 A partial enlarged view of point A in the iron bar rolling device shown.

[0024] Figure 5 It is a side schematic diagram of the transfer mechanism in the iron bar rolling device provided by the utility model. DETAILED DESCRIPTION

[0025] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0026] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix", "set" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0029] An iron bar rolling device with a limiting function is used to perform the processes of flattening, heating, cutting, discharging and waste discharging on the iron bar assembly in sequence. Figure 1 As shown, the iron bar assembly 100 includes a connecting iron bar 110 and a plurality of capacitor elements 120, wherein the capacitor elements 120 include a core package 121 and pins, and each of the capacitor elements 120 is fixed on one side of the connecting iron bar 110 by welding the pins; the pins include at least an anode pin 122 and a cathode pin 123, and at least one pin of each of the capacitor elements 120 is fixed on the connecting iron bar 110 by welding.

[0030] like Figure 2 As shown, the iron bar rolling device comprises:

[0031] The transfer mechanism 200 is used to transport the iron bar assembly 100 forward, and includes a transfer platform 210, wherein the transfer platform 210 is provided with a flattening station, a heating station, a foot cutting station, a material discharging station, and a waste discharging station in sequence along the transfer direction;

[0032] A flattening mechanism 300, used for flattening the connecting iron bar 110 and the pins of each capacitor element 120, is disposed next to the flattening station of the transfer platform 210;

[0033] A heating mechanism 400, used for heating the core package 121 of each capacitor element 120, is disposed next to the heating station of the transfer platform 210;

[0034] The pin cutting mechanism 500 is used to cut off the pins of each capacitor element 120 welded on the connecting iron bar 110, and is arranged next to the pin cutting station of the transfer platform 210;

[0035] The unloading mechanism 600 is used to take out each capacitor element 120 after the pins are cut off, and is arranged beside the unloading station of the transfer platform 210;

[0036] The waste channel 700 is used to collect the connecting iron bars 110 after the pins are cut off, and is arranged next to the waste discharge station of the transfer platform 210.

[0037] During operation, the feeding robot places the iron bar assembly 100 on the flattening station of the transfer platform 210, and the flattening mechanism 300 flattens the connecting iron bars 110 and the pins of each capacitor element 120 on the iron bar assembly 100, and then the transfer mechanism 200 sends the flattened iron bar assembly 100 to the heating station, the pin cutting station, the discharging station and the waste discharging station in sequence, and the heating mechanism 400, the pin cutting mechanism 500, the discharging mechanism 600 and the waste channel 700 heat the core package 121 of each capacitor element 120 on the iron bar assembly 100 in sequence, cut off the pins of each capacitor element 120 on the iron bar assembly 100 welded to the connecting iron bar 110, remove each capacitor element 120 after the pins are cut off, and collect the connecting iron bars 110 after the pins are cut off.

[0038] In this embodiment, the discharging mechanism 600 is a discharging robot, which grabs the pins on the capacitor element 120 during discharging to send the capacitor element 120 to the equipment of the next process.

[0039] like Figure 3 and 4 As shown, the flattening mechanism 300 includes a rolling wheel group 310, a limit block group 320, a rolling bracket 330 and a lifting drive assembly 340. The rolling wheel group 310 and the limit block group 320 are arranged on the rolling bracket 330. The rolling wheel group 310 is located above the flattening station, and the limit block group 320 is located below the flattening station. The lifting drive assembly 340 is connected to drive the rolling bracket 330 to rise and fall, thereby driving the rolling wheel group 310 and the limit block group 320 to rise and fall synchronously; when the rolling wheel group 310 is raised, the limit block group 320 also extends upward from the flattening station to enclose a limit area, and when the rolling wheel group 310 is lowered, the limit block group 320 also retracts downward from the flattening station.

[0040] The iron bar rolling device of the utility model is additionally provided with a limit block group 320 located below the flattening station of the transfer platform 210 in the flattening mechanism 300, and the limit block group 320 is synchronously raised and lowered with the rolling wheel group 310. The limit block group 320 is used to enclose a limit area for placing the iron bar assembly 100 on the flattening station, thereby avoiding positional displacement of the iron bar assembly 100 when it is placed on the flattening station of the transfer platform 210 by the feeding robot, and can improve the flattening accuracy of the rolling wheel group 310 on the connecting iron bars 110 on the iron bar assembly 100 and the pins of each of the capacitor elements 120.

[0041] During operation, the lifting drive assembly 340 drives the rolling wheel assembly 310 and the limit block assembly 320 to rise synchronously, the rolling wheel assembly 310 rises and moves away from the flattening station, and at the same time, the limit block assembly 320 extends upward from the flattening station and encloses a limit area on the flattening station to place the iron bar assembly 100, and then the feeding robot places the iron bar assembly 100 in the limit area formed by the limit block assembly 320 at the flattening station, and then the lifting drive assembly 340 drives the rolling wheel assembly 310 and the limit block assembly 320 to rise synchronously. The block group 320 is lowered synchronously, and the rolling wheel group 310 is lowered and pressed on the connecting iron bar 110 of the iron bar assembly 100 and the pins of each capacitor element 120. At the same time, the limit block group 320 is also retracted downward from the flattening station, and then the transfer mechanism 200 transports the iron bar assembly 100 forward. The rolling wheel group 310 rolls over the connecting iron bar 110 and the pins of each capacitor element 120 under the action of friction, and finally flattens the connecting iron bar 110 and the pins of each capacitor element 120.

[0042] The rolling wheel group 310 includes a rolling main shaft 311, a rolling swing arm 312, a first rolling secondary shaft 313, a second rolling secondary shaft 314, a first rolling wheel 315 and a second rolling wheel 316, wherein the first rolling wheel 315 and the second rolling wheel 316 are parallel to the moving direction of the transfer platform 210, and are arranged in sequence along the moving direction of the transfer platform 210; the middle of the rolling swing arm 312 is rotatably connected to the rolling bracket 330 through the rolling main shaft 311, one end of the rolling swing arm 312 is rotatably connected to the first rolling wheel 315 through the first rolling secondary shaft 313, and the other end of the rolling swing arm 312 is rotatably connected to the second rolling wheel 316 through the second rolling secondary shaft 314.

[0043] The first rolling wheel 315 and the second rolling wheel 316 are respectively arranged at the two ends of the rolling swing arm 312. During the rolling process, the first rolling wheel 315 and the second rolling wheel 316 can be slightly lifted up by the pins of each capacitor element 120 when rolling over the pins, so as to better adapt to the unevenness of the iron bar assembly 100 caused by the pins; moreover, when the first rolling wheel 315 is lifted up, the second rolling wheel 316 will press down, and when the second rolling wheel 316 is lifted up, the first rolling wheel 315 will press down, so as to avoid the first rolling wheel 315 and the second rolling wheel 316 being lifted up at the same time and losing the force on the iron bar assembly 100.

[0044] In this embodiment, the first rolling wheel 315 and the second rolling wheel 316 can be, but are not limited to, rubber rollers or silicone rollers.

[0045] Preferably, the rolling wheel group 310 also includes a swing limit block 317, which is fixedly arranged on the rolling bracket 330, and the swing limit block 317 extends two swing limit parts toward the rolling swing arm 312, and the two swing limit parts are respectively located above the two ends of the rolling swing arm 312.

[0046] The two swing limit parts of the swing limit block 317 are mainly used to limit the swing amplitude of the two ends of the rolling swing arm 312 to avoid the swing amplitude of the two ends of the rolling swing arm 312 being too large.

[0047] like Figure 4 As shown, the limit block group 320 includes a plurality of rolling limit blocks 321 , and the plurality of rolling limit blocks 321 are distributed on the flattening station to enclose and form a limit area for placing the iron bar assembly 100 when extended.

[0048] When the limit block group 320 extends upward from the flattening station and the feeding robot places the iron bar assembly 100 on the flattening station, the inner walls of the multiple rolling limit blocks 321 abut against the iron bar assembly 100, thereby preventing the iron bar assembly 100 from positionally shifting on the flattening station.

[0049] In this embodiment, the position distribution of the plurality of rolling limit blocks 321 is mainly adapted to the shape of the connecting iron bar 110, so as to limit the position of the connecting iron bar 110 and thus limit the iron bar assembly 100. The plurality of rolling limit blocks 321 are divided into two groups, each group includes at least two rolling limit blocks 321, and the two groups of rolling limit blocks 321 are respectively located at the two ends of the flattening station along the transfer direction to correspond to the two ends of the connecting iron bar 110, and the rolling limit blocks 321 in the same group are respectively located on both sides of the flattening station along the lateral direction perpendicular to the transfer direction to correspond to the two sides of the connecting iron bar 110.

[0050] Preferably, the distance between the rolling limit blocks 321 located on both sides of the lateral direction in the same group is equal to the width of the connecting iron bar 110.

[0051] The upper ends of the plurality of rolling limit blocks 321 are formed with an inclined surface facing the flattening station, so that the entrance of the limit area enclosed by the plurality of rolling limit blocks 321 gradually shrinks from top to bottom.

[0052] When the feeding robot places the iron bar assembly 100 into the limiting area of ​​the limiting block group 320, even if the iron bar assembly 100 has a slight positional offset, the entrance of the limiting area which gradually shrinks from top to bottom and is formed by the multiple rolling limiting blocks 321 can also guide the offset iron bar assembly 100 to be straightened through the inclined surface when the iron bar assembly 100 is placed.

[0053] The lifting drive assembly 340 includes a fixed bracket 341, a lifting guide rail 342, a lifting cylinder 343 and a lifting limit block 344. The lifting guide rail 342, the lifting cylinder 343 and the lifting limit block 344 are arranged on the fixed bracket 341, and the lifting limit block 344 is located below the lifting guide rail 342. The rolling bracket 330 is arranged on the lifting guide rail 342; the lifting cylinder 343 is connected to drive the rolling bracket 330 to lift and lower on the lifting guide rail 342; the rolling bracket 330 is against the lifting limit block 344 when it descends to the lowest position.

[0054] like Figure 3 and 5 As shown, the transfer mechanism 200 also includes a drive motor 220, a driving wheel 230, a synchronous transmission belt 240 and a plurality of transfer wheels 250 located below the transfer platform 210, the drive motor 220 is connected to drive the driving wheel 230 to rotate, and the synchronous transmission belt 240 is connected to transmit between the driving wheel 230 and each of the transfer wheels 250; the transfer platform 210 has a transfer groove, and a plurality of material grooves 211 openings are opened on the bottom of the transfer groove, and one of the material grooves 211 openings corresponds to one of the transfer wheels 250; each of the transfer wheels 250 extends into the transfer groove from the corresponding material groove 211 opening.

[0055] In this embodiment, the width of the transfer groove is equal to the width of the connecting iron bar 110. When the iron bar assembly 100 is placed on the transfer platform 210, the connecting iron bar 110 is embedded in the transfer groove and contacts with each of the transfer wheels 250 extending into the transfer groove, and is then driven forward by each of the transfer wheels 250.

[0056] The plurality of moving wheels are distributed on the flattening station, the heating station, the foot cutting station, the material discharging station and the waste discharging station of the transfer platform 210 .

[0057] The iron bar rolling device also includes a transfer auxiliary mechanism 800, which is arranged beside the transfer platform 210 and includes a plurality of transfer pressure wheel groups 810. The plurality of transfer pressure wheel groups 810 are sequentially arranged above the transfer platform 210 along the transfer direction.

[0058] The function of the transfer and pressing wheel group 810 is to press the iron bar assembly 100 toward each of the transfer wheels 250, so that each of the transfer wheels 250 has sufficient friction force on the iron bar assembly 100, and cooperates with the transfer mechanism 200 to transport the iron bar assembly 100 (mainly to transport the connecting iron sheet 110 after the pins are cut off). Therefore, the transfer and pressing wheel group 810 only needs to roll and press on the connecting iron bar 110 of the iron bar assembly 100, and does not need to roll and press on the pins of each of the capacitor elements 120. It is mainly distributed in the gaps between the flattening station, the heating station, the pin cutting station, the discharging station and the scrap discharging station.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the embodiments of the utility model rather than to limit them. Although the embodiments of the utility model are described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the embodiments of the utility model can still be modified or replaced by equivalents, and these modifications or equivalent replacements cannot cause the modified technical solutions to deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. An iron bar rolling device with a limiting function, characterized in that: include: The transfer mechanism comprises a transfer platform, wherein the transfer platform is provided with a flattening station; The flattening mechanism is arranged next to the flattening station of the transfer platform, and includes a rolling wheel group, a limit block group, a rolling bracket and a lifting drive assembly. The rolling wheel group and the limit block group are arranged on the rolling bracket, the rolling wheel group is located above the flattening station, and the limit block group is located below the flattening station. The lifting drive assembly is connected to drive the rolling bracket to rise and fall, thereby driving the rolling wheel group and the limit block group to rise and fall synchronously; when the rolling wheel group is raised, the limit block group also extends upward from the flattening station to enclose a limit area, and when the rolling wheel group is lowered, the limit block group also retracts downward from the flattening station.

2. The iron bar rolling device according to claim 1, characterized in that: The rolling wheel group includes a rolling main shaft, a rolling swing arm, a first rolling secondary shaft, a second rolling secondary shaft, a first rolling wheel and a second rolling wheel. The first rolling wheel and the second rolling wheel are parallel to the moving direction of the moving platform and are arranged in sequence along the moving direction of the moving platform. The middle of the rolling swing arm is rotatably connected to the rolling bracket through the rolling main shaft, one end of the rolling swing arm is rotatably connected to the first rolling wheel through the first rolling secondary shaft, and the other end of the rolling swing arm is rotatably connected to the second rolling wheel through the second rolling secondary shaft.

3. The iron bar rolling device according to claim 2, characterized in that: The rolling wheel group also includes a swing limit block, which is fixedly arranged on the rolling bracket. The swing limit block extends two swing limit parts toward the rolling swing arm, and the two swing limit parts are respectively located above the two ends of the rolling swing arm.

4. The iron bar rolling device according to claim 1, characterized in that: The limit block group includes a plurality of rolling limit blocks, and the plurality of rolling limit blocks are distributed on the flattening station to enclose and form the limit area when extended.

5. The iron bar rolling device according to claim 4, characterized in that: The multiple rolling limit blocks are divided into two groups, each group includes at least two rolling limit blocks, the two groups of rolling limit blocks are respectively located at the two ends of the flattening station along the transfer direction, and the rolling limit blocks in the same group are respectively located on both sides of the flattening station along the lateral direction perpendicular to the transfer direction.

6. The iron bar rolling device according to claim 4 or 5, characterized in that: The upper ends of the plurality of rolling limit blocks are formed with an inclined surface facing the flattening station, so that the entrance of the limit area enclosed by the plurality of rolling limit blocks gradually shrinks from top to bottom.

7. The iron bar rolling device according to claim 1, characterized in that: The lifting drive assembly includes a fixed bracket, a lifting guide rail, a lifting cylinder and a lifting limit block, the lifting guide rail, the lifting cylinder and the lifting limit block are arranged on the fixed bracket, the lifting limit block is located below the lifting guide rail, and the rolling bracket is arranged on the lifting guide rail; the lifting cylinder is connected to drive the rolling bracket to lift and lower on the lifting guide rail; the rolling bracket is against the lifting limit block when it descends to the lowest position.

8. The iron bar rolling device according to claim 1, characterized in that: The transfer mechanism also includes a driving motor, a driving wheel, a synchronous transmission belt and multiple transfer wheels located below the transfer platform, the driving motor is connected to drive the driving wheel to rotate, and the synchronous transmission belt is connected and transmitted between the driving wheel and each of the transfer wheels; the transfer platform has a transfer groove, and multiple material groove openings are opened on the bottom of the transfer groove, and one material groove opening corresponds to one transfer wheel; each transfer wheel extends into the transfer groove from the corresponding material groove opening.

9. The iron bar rolling device according to claim 1, characterized in that: The iron bar rolling device also includes a transfer auxiliary mechanism, which is arranged beside the transfer platform and includes a plurality of transfer pressure wheel groups, and the plurality of transfer pressure wheel groups are sequentially arranged above the transfer platform along the transfer direction.

10. The iron bar rolling device according to claim 1, characterized in that: The transfer platform is also equipped with a heating station, a foot cutting station, a discharging station and a waste discharging station in sequence in front of the flattening station along the transfer direction, and the iron bar rolling device also includes a heating mechanism, a foot cutting mechanism, a discharging mechanism and a waste channel correspondingly arranged next to the heating station, the foot cutting station, the discharging station and the waste discharging station on the transfer platform.

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