Reinforcing bar cutting apparatus with automatic length setting

Abstract

The application provides a length-automatically-set reinforcing bar feeding and cutting device, which comprises a reinforcing bar feeding mechanism, a cutting mechanism, a long groove and a plurality of length-setting mechanisms. The reinforcing bar feeding mechanism is used for feeding reinforcing bars. The cutting mechanism is used for cutting the reinforcing bars fed by the reinforcing bar feeding mechanism to obtain reinforcing bar segments. The long groove is used for allowing the reinforcing bars fed by the reinforcing bar feeding mechanism and the reinforcing bar segments driven by the reinforcing bars to pass through. The length-setting mechanisms are arranged correspondingly to the long groove. The reinforcing bar feeding mechanism, the cutting mechanism and the long groove are arranged in sequence along the feeding direction of the reinforcing bars. The long groove has a channel for allowing the reinforcing bars and the reinforcing bar segments to pass through. Each length-setting mechanism can move into or move away from the channel. When each length-setting mechanism moves into the channel, it blocks the reinforcing bars fed by the reinforcing bar feeding mechanism from continuing to pass through. When each length-setting mechanism moves away from the channel, it allows the reinforcing bars fed by the reinforcing bar feeding mechanism to continue to pass through. The cutting mechanism cuts the reinforcing bars fed by the reinforcing bar feeding mechanism into reinforcing bar segments with different lengths under the cooperation of the length-setting mechanisms moving into the channel, so that time is saved and efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of steel cage manufacturing, and in particular to a steel bar feeding and cutting device with automatic fixed length. Background Technology

[0002] As is well known, a steel cage is made by welding together multiple straight steel bars arranged in a circle around the circumference and multiple circular steel bars that surround the straight steel bars. Therefore, in the manufacturing process of a steel cage, it is necessary to straighten the steel coil, transport the straightened steel bars, and cut the straightened steel bars during transport to obtain steel bar segments.

[0003] For rebar cages, different specifications and dimensions require different sizes and lengths of rebar segments. To cut the delivered rebar into segments of varying lengths, existing rebar feeding and cutting devices rely on programmed settings. This involves precisely controlling the duration of each rebar feeding motor's operation based on the required segment length, so that the rebar is cut by the cutting device after being delivered to the correct position, resulting in the desired segment length. Therefore, every change in rebar segment length necessitates operator modification and adjustment of the program, leading to long processing times and low efficiency.

[0004] Therefore, there is an urgent need for a time-saving and efficiency-enhancing automatic length-controlled bar cutting device to overcome the above-mentioned defects. Summary of the Invention

[0005] The purpose of this invention is to provide a time-saving and efficiency-improving automatic length-fixed rebar cutting device.

[0006] To achieve the above objectives, the automatic fixed-length rebar cutting device of the present invention includes a rebar feeding mechanism for feeding rebar, a cutting mechanism for cutting the rebar fed by the feeding mechanism to obtain rebar segments, a long groove through which the rebar fed by the feeding mechanism and the rebar segments driven forward by the rebar pass, and a plurality of fixed-length mechanisms arranged at predetermined distances from each other along the feeding direction of the rebar and corresponding to the long groove. The feeding mechanism, the cutting mechanism, and the long groove are arranged sequentially along the feeding direction of the rebar. The long groove has a channel for the rebar and rebar segments to pass forward. Each fixed-length mechanism can extend into or move out of the channel. When each fixed-length mechanism extends into the channel, it blocks the rebar fed by the feeding mechanism from continuing to move forward. When each fixed-length mechanism moves out of the channel, it allows the rebar fed by the feeding mechanism to continue to move forward. The cutting mechanism cuts rebar segments of different lengths from the rebar fed by the feeding mechanism with the cooperation of different fixed-length mechanisms extending into the channel.

[0007] Preferably, the elongated groove is also equipped with a plurality of lower rolling bodies arranged in a row at intervals along the conveying direction of the ribs. The lower rolling bodies protrude upward into the channel and support the ribs delivered by the rib feeding mechanism and the rib segments driven forward by the ribs from below.

[0008] Preferably, the elongated groove is further equipped with a plurality of upper rolling bodies arranged in a row at intervals along the conveying direction of the ribs. The upper rolling bodies protrude downward into the channel and also roll in cooperation with the ribs fed by the rib feeding mechanism and the rib segments driven forward by the ribs from above. The upper rolling bodies and the lower rolling bodies are also arranged vertically aligned, or the upper rolling bodies and the lower rolling bodies are arranged in a staggered manner along the conveying direction of the ribs.

[0009] Preferably, the channel extends upward through the top surface of the elongated groove to form an upper opening, the upper rolling element protrudes downward from the upper opening into the channel, and the elongated groove also has a number of clearance spaces the same as the number of lower rolling elements that extend downward through the bottom surface of the elongated groove. The clearance spaces are vertically connected to the channel, and the lower rolling elements protrude upward from the clearance spaces into the channel.

[0010] Preferably, the automatic length-fixed feeding and cutting device of the present invention further includes a lower fastener, an upper fastener, and a mounting shaft. The elongated groove body also has a side wall that protrudes downward from the bottom surface of the elongated groove body and extends along the conveying direction of the rib. The lower fastener passes through the center of the lower rolling body and is fixedly connected to the side wall body. The mounting shaft crosses the channel from above the elongated groove body. The mounting shaft also passes through the center of the upper rolling body and is placed on the top surface of the elongated groove body. The upper fastener passes through the mounting shaft and the elongated groove body and locks the mounting shaft and the elongated groove body together.

[0011] Preferably, the length-fixing mechanism includes a blocking positioning head, a length-fixing driver that drives the blocking positioning head to extend into or move away from the channel, and a length-fixing frame that can be fixed to the long groove or the outside. The length-fixing driver is fixed to the length-fixing frame, and the output end of the length-fixing driver is assembled and connected to the blocking positioning head.

[0012] Preferably, the fixed-length frame includes a first base fixed to the elongated groove, a second base away from the first base, and an intermediate guide post supported between the first and second bases. The intermediate guide post is fixedly connected to the first and second bases respectively. The fixed-length driver is fixed to the second base. The output end of the fixed-length driver passes through the second base in a direction closer to the first base. The output end of the fixed-length driver is fixed with a guide sleeve arranged in a flat position. The guide sleeve is fixed with a guide plate located between the guide sleeve and the first base. The guide plate is also slidably fitted onto the intermediate guide post. The guide sleeve is also fitted with mounting guide posts with both ends extending out of the guide sleeve. The blocking positioning head is a square block and is inserted into one end of the mounting guide post. The other end of the mounting guide post is fitted with a plug-in component, which is also inserted into the guide plate.

[0013] Preferably, the feeding mechanism includes a feeding frame, at least two feeding rollers aligned along the feeding direction of the rib, a rolling driver for driving the feeding rollers to roll, a follower wheel located directly above the feeding rollers, and a lifting driver for driving the follower wheel downward toward or upward away from the feeding rollers. The feeding rollers, the rolling driver, and the lifting driver are each mounted on the feeding frame, and the follower wheel is mounted on the lifting end of the lifting driver.

[0014] Preferably, the cutting mechanism includes a cutting frame, a clamping driver, a moving pressure block, a fixed pressure block, a moving cutter, a fixed cutter, and a cutter driver. The cutting frame is fixed to the reinforcing bar feeding frame. The clamping driver and the fixed pressure block are each fixed to the cutting frame. The output end of the clamping driver is arranged horizontally. The moving pressure block is assembled and connected to the output end of the clamping driver. The clamping driver drives the moving pressure block to clamp or loosen relative to the fixed pressure block. The contours of the moving pressure block and the fixed pressure block facing each other are "L"-shaped. The fixed cutter is fixed to the cutting frame and located directly in front of the fixed pressure block along the conveying direction of the reinforcing bar. The moving cutter is located above the fixed cutter and is assembled and connected to the output end of the cutter driver. The cutter driver is fixed to the cutting frame.

[0015] Preferably, the cutting mechanism further includes a disc fixed to the cutting frame, the disc having a guide hole for guiding the ribs conveyed by the rib feeding mechanism, the fixed cutter being a circular annular cutter coaxially fixed to the positioning disc, the movable cutter being a square cutter, the adjacent and / or opposite sides of the square cutter having notches matching the ribs, and the output end of the cutter driver being arranged downwards.

[0016] Compared with existing technologies, by using multiple fixed-length mechanisms spaced apart by a preset distance along the conveying direction of the reinforcing bars and each corresponding to a long groove, each fixed-length mechanism can extend into or move out of the channel. When extending into the channel, each fixed-length mechanism blocks the reinforcing bars conveyed by the feeding mechanism from continuing forward, and when moving out of the channel, each fixed-length mechanism allows the reinforcing bars conveyed by the feeding mechanism to continue forward. Therefore, with the cooperation of different fixed-length mechanisms extending into the channel, the cutting mechanism cuts the reinforcing bars conveyed by the feeding mechanism into segments of different lengths, thereby saving time and improving work efficiency. In addition, since the reinforcing bars conveyed by the feeding mechanism are fixed in length by the blocking of the fixed-length mechanisms, rather than by the feeding mechanism itself controlling the length of the reinforcing bars, the difficulty of fixing the length of the reinforcing bars is reduced. Attached Figure Description

[0017] Figure 1 This is a plan view of the automatic fixed-length feed and cutting device of the present invention.

[0018] Figure 2 This is a perspective view of the feeding mechanism and the cutting mechanism assembled together in the automatic fixed-length feeding and cutting device of the present invention.

[0019] Figure 3 yes Figure 2 A floor plan viewed in the opposite direction of the arrow.

[0020] Figure 4 yes Figure 2 A plan view showing some of the ribs, viewed in the direction indicated by the arrow.

[0021] Figure 5 This is a perspective view of the cutting mechanism in the automatic fixed-length feed and cutting device of the present invention.

[0022] Figure 6 yes Figure 5 A floor plan viewed in the direction indicated by the arrow.

[0023] Figure 7 yes Figure 5 A 3D view of the right side of the concealed cutting frame.

[0024] Figure 8 yes Figure 7 A floor plan viewed in the direction indicated by the arrow.

[0025] Figure 9 It is a plan view showing the relationship between the pressure drive, the moving pressure block, and the stationary pressure block.

[0026] Figure 10 It is a three-dimensional diagram showing the relationship between the disc, the moving cutter, the fixed cutter, and the intermediate cutter holder.

[0027] Figure 11 yes Figure 10 A three-dimensional exploded view.

[0028] Figure 12 It is a three-dimensional view showing the long groove, upper rolling element, lower rolling element and foot support.

[0029] Figure 13 yes Figure 12 Enlarged view of section B.

[0030] Figure 14 yes Figure 12 A three-dimensional view from another angle.

[0031] Figure 15 yes Figure 14 Enlarged view of section C.

[0032] Figure 16 It is a 3D diagram showing the fixed-length mechanism. Detailed Implementation

[0033] To illustrate the technical content and structural features of the present invention in detail, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0034] Please see Figure 1 , Figure 4 and Figure 13 The present invention includes an automatic fixed-length feeding and cutting device 100 for feeding reinforcing bars 200, a feeding mechanism 10 for cutting the reinforcing bars 200 fed by the feeding mechanism 10 to obtain reinforcing bar segments, a long groove 30 through which the reinforcing bars 200 fed by the feeding mechanism 10 and the reinforcing bar segments driven forward by the reinforcing bars 200 pass together, and seven fixed-length mechanisms 40 arranged at a preset distance from each other along the feeding direction of the reinforcing bars 200 (see the direction indicated by arrow A) and each corresponding to the long groove 30. The feeding mechanism 10, the cutting mechanism 20, and the long trough 30 are arranged sequentially along the conveying direction of the reinforcing bar 200. The long trough 30 has a channel 31 through which the reinforcing bar 200 and its segments pass forward, ensuring the reliability of the reinforcing bar 200 and its segments moving forward together. Each fixed-length mechanism 40 can extend into or move away from the channel 31. When each fixed-length mechanism 40 extends into the channel 31, it blocks the reinforcing bar 200 conveyed by the feeding mechanism 10 from continuing to move forward. When each fixed-length mechanism 40 moves away from the channel 31, it allows the reinforcing bar 200 conveyed by the feeding mechanism 10 to continue to move forward. Therefore, the cutting mechanism 20 cuts reinforcing bar segments of different lengths from the reinforcing bar 200 conveyed by the feeding mechanism 10 with the cooperation of different fixed-length mechanisms 40 extending into the channel 31. For example, in Figure 1In the process, when the required length of the stiffening segment is the distance between the leftmost fixed-length mechanism 40 and the cutting mechanism 20, the leftmost fixed-length mechanism 40 extends into the channel 31, while the remaining fixed-length mechanisms 40 remain removed from the channel 31. Similarly, when the required length of the stiffening segment is the distance between the rightmost fixed-length mechanism 40 and the cutting mechanism 20, the rightmost fixed-length mechanism 40 extends into the channel 31, while the remaining fixed-length mechanisms 40 remain removed from the channel 31. This process is repeated to obtain stiffening segments of different lengths. It should be noted that although... Figure 1 The diagram shows seven fixed-length mechanisms (40 units). However, depending on actual needs, the number could vary to two, three, four, five, six, or eight. Therefore, it is not specified... Figure 1 The above is a limited description. More specifically, as follows:

[0035] like Figures 2 to 4 As shown, the rebar feeding mechanism 10 includes a rebar feeding frame 11, two rebar feeding rollers 12 aligned along the conveying direction of the rebar 200, a rolling drive 13 that drives the rebar feeding rollers 12 to roll, a follower wheel 14 located directly above the rebar feeding rollers 12, and a lifting drive 15 that drives the follower wheel 14 downward toward or upward away from the rebar feeding rollers 12. The rebar feeding rollers 12, the rolling drive 13, and the lifting drive 15 are each assembled in the rebar feeding frame 11, which provides a place for assembling the rebar feeding rollers 12, the rolling drive 13, and the lifting drive 15. Preferably, the rebar feeding frame 11 is a frame structure to facilitate hiding components such as the rolling drive 13 within the rebar feeding frame 11. See the attached diagram for details. Figure 3 As shown, this makes the overall design of the rib feeding mechanism 10 simpler; the follower wheel 14 is mounted on the lifting end of the lifting drive 15; therefore, with the cooperation of the rolling drive 13, the rib feeding roller 12, the follower wheel 14 and the lifting drive 15, the conveying of the rib 200 is more reliable. That is, during the conveying of the rib 200, the lifting drive 15 drives the follower wheel 14 and the rib feeding roller 12 to clamp the rib 200 together and support the rib 200 from multiple points, and the rolling drive 13 drives the rib feeding roller 12 to convey the clamped rib 200 forward by rolling friction, thereby improving the reliability of the rib 200 conveying. Specifically, in Figure 3 In the middle, the rolling driver 13 is a servo motor. The servo motor drives the two feeding rollers 12 to rotate synchronously and in the same direction through the cooperation of chain drive and gear drive. Of course, depending on actual needs, the servo motor can also drive the two feeding rollers 12 to rotate synchronously and in the same direction through the cooperation of belt drive and gear drive. Therefore, it is not considered as... Figure 3 The above is for illustrative purposes only; furthermore, the lifting drive 15 is a pneumatic cylinder, but it can also be a hydraulic cylinder or an electric actuator depending on actual needs. It should be noted that, although... Figure 2 and Figure 4 The image shows two feed rollers (12), but the actual number may vary, with three or four depending on the specific needs. Therefore, it is not considered a fixed number. Figure 2 and Figure 4 As shown, the following is a limitation. To improve the reliability of the cooperation between the follower wheel 14 and the feed roller 12, and to effectively prevent the rib 200 from sagging during transport to the cutting mechanism 20, the number of follower wheels 14 is the same as the number of feed rollers 12, and the follower wheels 14 are located directly above the feed rollers 12. Figure 2 and Figure 14 As shown.

[0036] like Figures 2 to 8 As shown, the cutting mechanism 20 includes a cutting frame 21, a clamping driver 22, a moving pressure block 23, a fixed pressure block 24, a moving cutter 25, a fixed cutter 26, and a cutter driver 24. The cutting frame 21 is fixed to the feeder frame 11. Preferably, the cutting frame 21 is fixed to the feeder frame 11 from above, so that the feeder frame 11 can support the cutting frame 21. The clamping driver 22 and the fixed pressure block 24 are each fixed to the cutting frame 21. 21 provides support for the clamping actuator 22 and the fixed pressure block 24. The output end 221 of the clamping actuator 22 is arranged flat. The moving pressure block 23 is assembled and connected to the output end 221 of the clamping actuator 22. The clamping actuator 22 drives the moving pressure block 23 to perform clamping or loosening clamping relative to the fixed pressure block 24 to meet the need for clamping or loosening the rib 200. The contours 231 (221) of the moving pressure block 23 and the fixed pressure block 22 facing each other are "L" shaped, as shown in the figure. Figure 9 As shown, the contour 231 (221) forms an "L" shape, surrounding the rib 200 from all sides during the clamping process to prevent the rib 200 from moving around during clamping; the fixed cutter 26 is fixed to the cutting frame 21 and located directly in front of the fixed pressure block 24 along the conveying direction of the rib 200, and the moving cutter 25 is located above the fixed cutter 26 and is assembled and connected to the output end 271 of the cutter driver 27, which is fixed to the cutting frame 21; therefore, when the cutting mechanism 20 cuts the rib 200 conveyed by the rib feeding mechanism 10, the clamping driver 22 first drives the moving pressure block 23 and the fixed pressure block 24 to clamp the rib 200 together, and then the cutter driver 27 drives the moving cutter 25 and the fixed cutter 26 together to cut the rib 200, improving the reliability of the rib 200 cutting. Specifically, in Figures 5 to 8 ,as well as Figure 10 and Figure 11In the cutting mechanism 20, a disc 28 is fixed to the cutting frame 21. The disc 28 has a guide hole 281 for guiding the ribs 200 conveyed by the rib feeding mechanism 10 through, so that the ribs 200 are reliably guided to the fixed cutter 26 by means of the guide hole 281. The fixed cutter 26 is a ring cutter coaxially fixed with the positioning disc 28. The moving cutter 25 is a square cutter. The adjacent and opposite sides of the square cutter have notches 251 for matching ribs 200, so that all sides of the moving cutter 25 can be used by means of the notches 251 and the square cutter, thereby extending its service life. The output end 271 of the cutter driver 27 is arranged downward to simplify the assembly relationship between the cutter driver 27 and the moving cutter 25. More specifically, in Figure 10 and Figure 11 In this configuration, the moving cutter 25 is connected to the output terminal 271 of the cutter driver 27 via the intermediate tool holder 29, thus indirectly assembling the moving cutter 25 with the output terminal 271 of the cutter driver 27. At this time, the moving cutter 25 is embedded in the intermediate tool holder 29, as shown in the diagram. Figure 10 As shown, but not limited to. For example, the cutter driver 27 is a hydraulic cylinder to increase power, while the clamping driver 22 is a pneumatic cylinder, but not limited to this example. It should be noted that, depending on actual needs, the notch 251 can be formed by adjacent or opposite sides of the square cutter, therefore not... Figure 10 and Figure 11 The above is the limit.

[0037] like Figures 12 to 15 As shown, the long trough 30 is also equipped with multiple lower rolling bodies 50 arranged in rows spaced apart along the conveying direction of the ribs 200 and multiple upper rolling bodies 60 arranged in rows spaced apart along the conveying direction of the ribs 200; the lower rolling bodies 50 protrude upward into the channel 31, and the lower rolling bodies 50 also support the ribs 200 and the rib segments driven forward by the ribs from below; the upper rolling bodies 60 protrude downward into the channel 31, and the upper rolling bodies 60 also roll in cooperation with the ribs 200 and the rib segments driven forward by the ribs from above. The upper rolling bodies 60 and the lower rolling bodies 50 are staggered along the conveying direction of the ribs 200; in order to reduce the forward resistance between the ribs 200 and the long trough 30 by the cooperation of the multiple upper rolling bodies 60 and the multiple lower rolling bodies 50, thereby making the ribs 200 move forward more smoothly. Specifically, in Figure 13 In the middle, the channel 31 also extends upward through the top surface 32 of the elongated groove 30 to form an upper opening 321. The upper rolling element 60 protrudes downward from the upper opening 321 into the channel 31, thereby reducing the processing difficulty of the elongated groove 30 as it needs to accommodate multiple upper rolling elements 60 protruding downward into the channel 31. Simultaneously, Figure 15In the long groove 30, there are also a number of clearance spaces 331, the same as the number of lower rolling bodies 50, that extend downward through the bottom surface 33 of the long groove 30. The clearance spaces 331 are vertically connected to the channel 31. The lower rolling bodies 50 protrude upward from the clearance spaces 331 into the channel 31. Multiple clearance spaces 331 are used to meet the requirement that each lower rolling body 50 protrudes upward from the clearance space 331 into the channel 31, and to avoid the channel 31 being designed to extend downward through the bottom surface 33 of the long groove 30, resulting in a structure where the positions of the lower rolling bodies 50 are unsupported. More specifically, in conjunction with... Figure 13 and Figure 15 The automatic fixed-length feed and cutting device 100 of the present invention also includes a lower fastener 71, an upper fastener 72, and a mounting shaft 73; the elongated groove 30 also has a side wall 34 that protrudes downward from the bottom surface 33 of the elongated groove 30 and extends along the conveying direction of the rib 200, and the lower fastener 71 passes through the center of the lower rolling body 50 and is fixedly connected to the side wall 34 (see state). Figure 15 This design simplifies the assembly between the lower rolling element 50 and the side wall 34. Preferably, the lower fastener 71 is a screw, and the lower rolling element 50 is a bearing, but this is not a limitation. The mounting shaft 73 extends across the channel 31 from above the elongated groove 30. The mounting shaft 73 also passes through the center of the upper rolling element 60 and rests on the top surface 32 of the elongated groove 30. The upper fastener 72 passes through the mounting shaft 73 and the elongated groove 30, locking the mounting shaft 73 and the elongated groove 30 together. See the diagram for details. Figure 13 As shown, to simplify the assembly of the upper rolling element 60 and the elongated groove 30, it is preferable that the upper fastener 72 is a screw and the upper rolling element 60 is a bearing, but this is not a limitation. It should be noted that the elongated groove 30 is fixed to the outside by means of multiple support brackets 74. The support brackets 74 keep the elongated groove 30 at a matching height with the feeding mechanism 10 and the cutting mechanism 20, respectively. Of course, when there is no height difference between the elongated groove 30 and the feeding mechanism 10 and the cutting mechanism 20, the support brackets 74 are not needed. This is a flexible setting according to actual needs, so it will not be described in detail here.

[0038] like Figure 1 and Figure 16 As shown, the length-fixing mechanism 40 includes a blocking positioning head 41, a length-fixing driver 42 that drives the blocking positioning head 41 to extend into or move away from the channel 31, and a length-fixing frame 43 fixed to the long slot body 30. Of course, the length-fixing frame 43 can also be fixed to the outside, so it is not considered as such. Figure 1 As shown, the fixed-length actuator 42 is fixed to the fixed-length frame 41, and the fixed-length frame 41 provides support for the fixed-length actuator 42. The output end 421 of the fixed-length actuator 42 is assembled and connected to the blocking positioning head 41; in order to simplify the structure of the fixed-length mechanism 40 by means of the cooperation of the blocking positioning head 41 and the fixed-length actuator 42. Specifically, in Figure 16In the middle, the fixed-length frame 43 includes a first base 431 fixed to the long slot body 30, a second base 432 away from the first base 431, and an intermediate guide post 433 supported between the first base 431 and the second base 432; the intermediate guide post 433 is fixedly connected to the first base 431 and the second base 432 respectively, so that the three are fixed together; the fixed-length driver 42 is fixed to the second base 432, and the output end 421 of the fixed-length driver 42 passes through the second base 432 in a direction closer to the first base 431; the output end 421 of the fixed-length driver 42 is fixed with a guide sleeve 44 arranged in a flat position; the guide sleeve 44 is fixed with a guide plate 45 located between the guide sleeve 44 and the first base 431; the guide plate 45 is also slidably fitted onto the intermediate guide post 433; and a guide sleeve 44 is also fitted inside the guide sleeve 44, with each end extending out of the guide sleeve 44. Mounting guide post 46; the blocking positioning head 41 is a square block inserted into one end of the mounting guide post 46, and the other end of the mounting guide post 46 is fitted with a plug-in component 47, which is also inserted into the guide plate 45; therefore, by using a square block as the blocking positioning head 41, all four sides of the blocking positioning head 41 have a blocking positioning function, thus extending the service life of the blocking positioning head 41; by using the mounting guide post 46, guide sleeve 44, and plug-in component 47, the blocking positioning head 41 is easy to install and remove through the plug-in engagement of the mounting guide post 46 and guide sleeve 44, while the plug-in component 47 serves to prevent the mounting guide post 46 from rotating relative to the guide sleeve 44; by using the guide plate 45, the smoothness and efficiency of the fixed-length actuator 42 driving the guide plate 45, guide sleeve 44, mounting guide post 46, plug-in component 47, and blocking positioning head 41 to perform lifting and lowering movements are improved. For example, the fixed-length actuator 42 is a cylinder, but it can also be a hydraulic cylinder or an electric push rod depending on the actual needs, but is not limited to this.

[0039] The working principle of the automatic fixed-length feed and cutting device of the present invention will be explained with reference to the accompanying drawings: Figure 1 In the process, when the required length of the reinforcing bar segment is the distance between the cutting mechanism 20 and the leftmost fixed-length mechanism 40, the leftmost fixed-length mechanism 40 extends into the channel 31, while the remaining fixed-length mechanisms 40 remain in a state of being moved away from the channel 31. When the reinforcing bar 200 delivered by the reinforcing bar feeding mechanism 10 blocks the leftmost fixed-length mechanism 40 to a fixed length, the cutting mechanism 20 can cut the reinforcing bar 200. When it is necessary to cut another reinforcing bar segment from the reinforcing bar 200, the leftmost fixed-length mechanism 40... First, the reinforcing bar 40 moves away from the channel 31, and the reinforcing bar feeding mechanism 10 continues to transport the reinforcing bar 200 forward. The forward-transmitted reinforcing bar 200 carries the reinforcing bar segment forward until the reinforcing bar segment passes the leftmost fixed-length mechanism 40. After the reinforcing bar segment is carried by the reinforcing bar 200 past the leftmost fixed-length mechanism 40, the reinforcing bar feeding mechanism 10 needs to transport the reinforcing bar 200 back to prevent the reinforcing bar 200 from moving too far forward and causing the leftmost fixed-length mechanism 40 to no longer be able to block the reinforcing bar 200 to a fixed length. The remaining fixed-length mechanisms 40 are used in the same way as the leftmost fixed-length mechanism 40, so they will not be described in detail here.

[0040] Compared with the prior art, by using multiple length-fixing mechanisms 40 arranged at preset distances along the conveying direction of the reinforcing bar 200 and corresponding to the long groove 30, each length-fixing mechanism 40 can extend into or move away from the channel 31. When each length-fixing mechanism 40 extends into the channel 31, it blocks the reinforcing bar 200 conveyed by the reinforcing bar feeding mechanism 10 from continuing to move forward. When each length-fixing mechanism 40 moves away from the channel 31, it allows the reinforcing bar 200 conveyed by the reinforcing bar feeding mechanism 10 to continue to move forward. Therefore, with the cooperation of different length-fixing mechanisms 40 extending into the channel 31, the cutting mechanism 20 cuts the reinforcing bar 200 conveyed by the reinforcing bar feeding mechanism 10 into segments of different lengths, thereby achieving the purpose of saving time and improving work efficiency. In addition, since the length of the reinforcing bar 200 conveyed by the reinforcing bar feeding mechanism 10 is fixed by the blocking of the length-fixing mechanism 40, rather than by the reinforcing bar feeding mechanism 10 itself controlling the length of the reinforcing bar 200, the difficulty of fixing the length of the reinforcing bar 200 is reduced.

[0041] It is worth noting that, in order to improve the degree of automation, the automatic length-fixed feeding and cutting device 100 of the present invention can be electrically connected to a controller, which can be a programmable controller or a control circuit. Of course, the automatic length-fixed feeding and cutting device 100 of the present invention can also be operated by an operator.

[0042] The above-disclosed examples are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are within the scope of the present invention.

Claims

1. A rebar feeding and cutting device with automatic fixed length function, characterized in that, The system includes a feeding mechanism for conveying reinforcing bars, a cutting mechanism for cutting the reinforcing bars fed by the feeding mechanism to obtain reinforcing bar segments, a long groove through which the reinforcing bars fed by the feeding mechanism and the reinforcing bar segments driven by the reinforcing bars pass forward, and multiple fixed-length mechanisms spaced apart from each other at a predetermined distance along the conveying direction of the reinforcing bars and each corresponding to the long groove. The feeding mechanism, cutting mechanism, and long groove are arranged sequentially along the conveying direction of the reinforcing bars. The long groove has a channel through which the reinforcing bars and reinforcing bar segments pass forward. Each fixed-length mechanism can extend into or move out of the channel. When each fixed-length mechanism extends into the channel, it blocks the reinforcing bars fed by the feeding mechanism from continuing to move forward. When each fixed-length mechanism moves out of the channel, it allows the reinforcing bars fed by the feeding mechanism to continue to move forward. The cutting mechanism cuts reinforcing bar segments of different lengths from the reinforcing bars fed by the feeding mechanism with the cooperation of different fixed-length mechanisms extending into the channel. The feeding mechanism includes a feeding frame, at least two feeding rollers aligned along the feeding direction of the ribs, a rolling driver that drives the feeding rollers to roll, a follower wheel located directly above the feeding rollers, and a lifting driver that drives the follower wheel to move downward toward or upward away from the feeding rollers. The feeding rollers, the rolling driver, and the lifting driver are each assembled in the feeding frame, and the follower wheel is assembled in the lifting end of the lifting driver. The length-fixing mechanism includes a blocking positioning head, a length-fixing driver that drives the blocking positioning head to extend into or move away from the channel, and a length-fixing frame that can be fixed to the long groove or the outside. The length-fixing driver is fixed to the length-fixing frame, and the output end of the length-fixing driver is assembled and connected to the blocking positioning head.

2. The automatic fixed-length feed and cutting device according to claim 1, characterized in that, The long groove is also equipped with a plurality of lower rolling bodies arranged in a row at intervals along the conveying direction of the ribs. The lower rolling bodies protrude upward into the channel and support the ribs and rib segments that are driven forward by the ribs from below by the rib feeding mechanism.

3. The automatic fixed-length feed and cutting device according to claim 2, characterized in that, The long groove is also equipped with a plurality of upper rolling bodies arranged in a row at intervals along the conveying direction of the ribs. The upper rolling bodies protrude downward into the channel. The upper rolling bodies also roll and cooperate with the ribs and rib segments driven forward by the ribs from above. The upper rolling bodies and the lower rolling bodies are also arranged vertically aligned, or the upper rolling bodies and the lower rolling bodies are arranged in a staggered manner along the conveying direction of the ribs.

4. The automatic fixed-length feed and cutting device according to claim 3, characterized in that, The channel extends upward through the top surface of the elongated groove to form an upper opening. The upper rolling element protrudes downward from the upper opening into the channel. The elongated groove also has the same number of clearance spaces as the lower rolling elements, which extend downward through the bottom surface of the elongated groove. The clearance spaces are vertically connected to the channel, and the lower rolling elements protrude upward from the clearance spaces into the channel.

5. The automatic fixed-length feed and cutting device according to claim 4, characterized in that, It also includes a lower fastener, an upper fastener, and a mounting shaft. The elongated groove body also has a side wall that protrudes downward from the bottom surface of the elongated groove body and extends along the conveying direction of the rib. The lower fastener passes through the center of the lower rolling body and is fixedly connected to the side wall body. The mounting shaft crosses the channel from above the elongated groove body. The mounting shaft also passes through the center of the upper rolling body and is placed on the top surface of the elongated groove body. The upper fastener passes through the mounting shaft and the elongated groove body and locks the mounting shaft and the elongated groove body together.

6. The automatic fixed-length feed and cutting device according to claim 1, characterized in that, The fixed-length frame includes a first base fixed to the long groove, a second base away from the first base, and an intermediate guide post supported between the first and second bases. The intermediate guide post is fixedly connected to the first and second bases respectively. The fixed-length driver is fixed to the second base. The output end of the fixed-length driver passes through the second base in a direction closer to the first base. The output end of the fixed-length driver is fixed with a guide sleeve arranged in a flat position. The guide sleeve is fixed with a guide plate located between the guide sleeve and the first base. The guide plate is also slidably fitted onto the intermediate guide post. The guide sleeve is also fitted with mounting guide posts with both ends extending out of the guide sleeve. The blocking positioning head is a square block and is inserted into one end of the mounting guide post. The other end of the mounting guide post is fitted with a plug-in component, which is also inserted into the guide plate.

7. The automatic fixed-length feed and cutting device according to claim 1, characterized in that, The cutting mechanism includes a cutting frame, a clamping driver, a moving pressure block, a fixed pressure block, a moving cutter, a fixed cutter, and a cutter driver. The cutting frame is fixed to the reinforcing bar feeding frame. The clamping driver and the fixed pressure block are each fixed to the cutting frame. The output end of the clamping driver is arranged horizontally. The moving pressure block is assembled and connected to the output end of the clamping driver. The clamping driver drives the moving pressure block to clamp or loosen relative to the fixed pressure block. The contours of the moving pressure block and the fixed pressure block facing each other are "L"-shaped. The fixed cutter is fixed to the cutting frame and located directly in front of the fixed pressure block along the conveying direction of the reinforcing bar. The moving cutter is located above the fixed cutter and is assembled and connected to the output end of the cutter driver. The cutter driver is fixed to the cutting frame.

8. The automatic fixed-length feed and cutting device according to claim 7, characterized in that, The cutting mechanism further includes a disc fixed to the cutting frame, the disc having a guide hole for guiding the ribs conveyed by the rib feeding mechanism to pass through, the fixed cutter being a circular cutter coaxially fixed to the disc, the movable cutter being a square cutter, the adjacent and / or opposite sides of the square cutter having notches matching the ribs, and the output end of the cutter driver being arranged downwards.

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