A post-pressing punching device for producing a pipe-anchoring rod

Abstract

A kind of post-pressing punching equipment for pipe anchor rod production, it is related to mining support technical field, including tracking cutting machine, tracking cutting machine includes a frame body, the sliding frame is slidably connected on the frame body, driving mechanism is equipped on the frame body, cutting die is installed on the sliding frame, when cutting anchor rod, the driving mechanism can drive sliding frame to drive the cutting die and anchor rod synchronous movement, after cutting is completed, the cutting die is separated from anchor rod, and the driving mechanism drives the cutting die to retreat.

Description

Technical Field

[0001] This utility model relates to the field of mining support technology, specifically a post-pressing punching device for the production of slotted pipe anchor bolts. Background Technology

[0002] In underground engineering projects such as coal mines and coal mines, tunnel support is a fundamental aspect of ensuring operational safety and production continuity. The processing quality of slotted pipe anchors directly determines their load-bearing performance and support life. The roundness of the pipe affects the uniformity of contact with the rock mass, while straightness relates to installation accuracy. The precision of punching and cutting plays a crucial role in the reliability of subsequent grouting operations and tray installation. Insufficient roundness leads to uneven distribution of support force, straightness deviations can cause installation difficulties, and improper punching positions can cause misalignment of grouting holes, resulting in insufficient grouting and weakening the anchoring effect.

[0003] Currently, the manufacturing of welded pipe anchors in China mainly relies on pre-forming punching technology, where holes are pre-punched before the strip enters the pipe-making machine. However, during the subsequent multi-roll forming process, the strip inevitably undergoes elongation and bending deformation, causing the pre-punched holes to shift, elongate, or deform into elliptical shapes after forming. This hole position deviation results in inaccurate positioning of the grouting holes or installation holes on the anchor, severely affecting the compatibility of the tray installation and the grouting effect, and even leading to product scrap. Utility Model Content

[0004] The purpose of this invention is to solve the problems mentioned in the background art, and to propose a post-pressing punching device for the production of welded pipe anchor rods.

[0005] The technical solution adopted by this utility model to solve its technical problem is: A post-pressing punching device for producing welded pipe anchor bolts includes a heavy-duty pipe forming machine and a tracking cutter. The tracking cutter is located behind the heavy-duty pipe forming machine. The tracking cutter includes a frame with two transverse slide rails. Transverse sliders are mounted on the transverse slide rails, and sliding frames are mounted on multiple transverse sliders. A driving mechanism is provided between two transverse slide rails. A cutting die is mounted on the sliding frame. When the cutting die cuts the anchor bolt, the driving mechanism drives the sliding frame to move the cutting die synchronously with the anchor bolt. After cutting is completed, the cutting die separates from the anchor bolt, and the driving mechanism drives the cutting die to retract.

[0006] Furthermore, the drive mechanism is one of an electric slide, an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0007] Furthermore, the sliding frame includes a lower plate, on which two parallel vertical plates are formed. The vertical plates are provided with longitudinal slide rails, and longitudinal sliders are provided on the longitudinal slide rails. Support plates are installed on multiple longitudinal sliders, and cutting molds are installed on the support plates. A hinge seat is provided between the two vertical plates, and a cylinder is installed on the hinge seat. The telescopic rod of the cylinder is connected to a support at the bottom of the support plate.

[0008] Furthermore, a positioning mechanism is provided on the side wall of the vertical plate. The positioning mechanism includes a connecting rod, a longitudinal rod, and a photoelectric sensor. The longitudinal rod is connected to the side wall of the vertical plate by the connecting rod. Multiple photoelectric sensors are provided on the longitudinal rod. A movable plate that cooperates with the sensors is provided on the support plate.

[0009] Furthermore, the cutting mold includes a base plate, a top plate, and a lifting plate. Multiple guide rods are provided between the base plate and the top plate. The lifting plate is slidably fitted on the guide rods. A hydraulic cylinder is provided on the top plate. The telescopic rod of the hydraulic cylinder is connected to the top of the lifting plate. A cutting blade is provided at the bottom of the lifting plate. A guide block is formed on the base plate. A cutting channel for accommodating the passage of the seam pipe anchor rod is formed in the middle of the guide block.

[0010] Furthermore, a transmission rubber wheel is provided on one side of the cutting channel, and a rotary encoder is installed on the shaft of the rubber wheel. The side wall of the transmission rubber wheel presses against the seam anchor rod.

[0011] Furthermore, the cutting blade is T-shaped.

[0012] Furthermore, the guide block and the base plate are provided with through-cutting grooves to accommodate the insertion of the cutting blade.

[0013] Furthermore, a sleeve is slidably fitted onto the guide rod, and the sleeve is welded to the side wall of the lifting plate.

[0014] As can be seen from the above, the post-pressing punching equipment for the production of sewn tube anchor bolts provided in this application solves the problems of hole deformation caused by pre-forming punching and low efficiency caused by independent processing after forming by moving the sewn tube pressing and punching to the back of the tube making process and using a servo post-pressing punching tracking cutter to achieve synchronous movement and cutting. It has the advantages of effectively improving the roundness and straightness of the sewn tube, reducing product defects, reducing costs, saving manpower and improving work efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 A three-dimensional structural diagram for tracking the cutting machine; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; Figure 4 A three-dimensional structural diagram of the cutting mold.

[0016] In the diagram: 101. Strip steel storage rack; 102. Double-station hydraulic unloading rack; 103. Automatic strip steel welding machine; 104. Vertical strip steel cage; 105. Heavy-duty pipe forming machine; 106. Tracking cutting machine; 107. Post-forming station unloading conveyor; 108. Multi-set post-welding station conveyor; 1. Frame; 11. Transverse slide rail; 12. Sliding frame; 121. Lower plate; 122. Vertical plate; 32. Support plate; 123. Hinge seat; 31. Cylinder; 2. Drive mechanism; 41. Connecting rod; 42. Longitudinal rod; 43. Photoelectric sensor; 44. Moving plate; 6. Cutting mold; 61. Top plate; 62. Hydraulic cylinder; 63. Lifting plate; 64. Sleeve; 65. Guide rod; 66. Guide block; 661. Channel; 67. Base plate; 671. Through-cutting groove; 68. Cutting knife Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Traditional existing processing techniques for slotted pipe anchor bolts, whether involving punching holes before forming or separate processing after forming, have significant limitations. Punching holes before forming can easily lead to displacement, elongation, or elliptical deformation of the holes due to subsequent rolling deformation, affecting the accuracy of grouting and tray installation.

[0019] In response, this application proposes a post-pressing punching device for the production of welded pipe anchor bolts, including a strip steel storage rack 101, a dual-station hydraulic feeding rack 102, an automatic strip steel welding machine 103, a vertical strip steel cage 104, a heavy-duty pipe forming machine 105, a tracking cutter 106, a post-forming station unloading conveyor 107, and multiple sets of post-welding station conveyors 108, with each component arranged sequentially from left to right according to the above order.

[0020] The strip steel storage rack measures 1.2 meters by 3 meters and can store 15-20 coils of strip steel raw materials for easy access during production. The dual-station hydraulic unloading rack is an externally purchased device, with a maximum unloading diameter of 1.6 meters, a core diameter of 0.4-0.5 meters, a coil thickness of 50-200 mm, and a maximum strip steel thickness of 3.5 mm. The automatic strip steel butt welding machine is also externally purchased, with a maximum welding thickness of 3.5 mm and a maximum welding width of 200 mm. The vertical strip steel cage is self-made, with a length of 8.5 meters, a height of 3.8 meters, and an internal width of 120 mm. The heavy-duty pipe forming machine is externally purchased, a 76-unit machine, with a maximum processing diameter of 50 mm and a maximum strip steel thickness of 3.5 mm. The post-forming station unloading conveyor is self-made, with a transmission length of 5 meters and a transmission speed of 40 m / min. The anchor bolt end-reducing machine is also self-made, with a reduction diameter of 38±2 mm and a reduction speed of 30 bolts / min. The post-welding station conveyor is self-made, with a conveying length of 20 meters and a conveying speed of 40 m / min. The tracking cutting machine includes a frame 1 with two transverse slide rails 11. Transverse sliders are installed on the transverse slide rails, and sliding frames 12 are installed on multiple transverse sliders. A drive mechanism 2 is provided between the two transverse slide rails. A cutting die 6 is installed on the sliding frame. When the cutting die cuts the anchor rod, the drive mechanism can drive the sliding frame to move the cutting die synchronously with the anchor rod. After the cutting is completed, the cutting die separates from the anchor rod, and the drive mechanism drives the cutting die to retract.

[0021] The above design effectively improves the roundness and straightness of the sewn tube by moving the forming and punching process to the back of the tube manufacturing process, reducing product defects, lowering costs, saving manpower, and improving work efficiency. At the same time, it is simple to operate, easy to use, and suitable for processing sewn tubes of various specifications.

[0022] For ease of understanding, the following explains some key terms in this embodiment: The tracking cutter 106 is configured after the heavy-duty tube forming machine 105. It is used to perform pressing, punching and cutting operations on the formed seam anchor rods and has the ability to track movement to ensure processing accuracy.

[0023] The frame 1, which serves as the main support structure for the tracking cutter 106, is used to support and fix other functional components.

[0024] The transverse slide rail and the transverse slider are mounted on the frame 1. The transverse slider and the transverse slide rail slide together to form a guide system that can realize transverse reciprocating motion.

[0025] The sliding frame 12, which is mounted on the transverse slider, serves as the carrier of the cutting mold 6 and moves along the transverse slide rail under the action of the drive mechanism 2.

[0026] The drive mechanism 2, which is located between two transverse slide rails, provides power to drive the sliding frame 12 and the cutting mold 6 mounted on it to move laterally.

[0027] The cutting die 6, which is mounted on the sliding frame 12, is a tool for directly cutting the seam anchor rod.

[0028] Synchronous movement means that when the cutting die 6 is cutting the seam pipe anchor rod, its moving speed and direction are consistent with the conveying speed and direction of the seam pipe anchor rod to ensure the accuracy of the cutting position.

[0029] "Retreat" refers to the cutting die 6 quickly returning to its initial position under the action of the drive mechanism 2 after completing the cutting operation of the seam pipe anchor rod, in preparation for the next cutting operation.

[0030] In some of the embodiments described above in this application, a drive mechanism is proposed to drive the sliding frame to move the cutting mold and the anchor rod synchronously. However, in its implementation, the choice of the type of drive mechanism may affect the response speed, positioning accuracy and reliability of the equipment, resulting in failure of synchronous movement or inaccurate return.

[0031] The drive mechanism is one of an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

[0032] Specifically, when the drive mechanism 2 is an electric cylinder, the electric cylinder, as an actuator that converts the rotary motion of an electric motor into linear motion, typically achieves the extension and retraction of the piston rod by driving a lead screw or rack and pinion mechanism through a motor. Electric cylinders offer advantages such as high positioning accuracy, precise speed and position control, easy integration with digital control systems (such as PLCs), smooth operation, and clean, pollution-free operation. In scenarios requiring high-precision synchronous tracking and accurate return control, electric cylinders provide excellent performance.

[0033] When the drive mechanism 2 is selected as a cylinder, a cylinder is an actuator that uses compressed air as a power source to convert air pressure energy into mechanical energy, driving a piston rod to perform linear reciprocating motion. Cylinders have a relatively simple structure, fast response speed, low cost, and are easy to maintain. Furthermore, they offer explosion-proof advantages in certain special environments (such as flammable and explosive locations). They are suitable for synchronous movement and rapid return applications where high speed requirements are needed but positioning accuracy requirements are relatively relaxed.

[0034] When a hydraulic cylinder is selected as the drive mechanism 2, it is an actuator that converts hydraulic energy into mechanical energy to drive a piston rod in linear reciprocating motion. Hydraulic cylinders can output enormous thrust or pull forces and are characterized by high rigidity, smooth operation, and strong impact resistance, making them particularly suitable for applications requiring high loads and high power output. During the synchronous movement and retraction of the cutting die 6 and the anchor rod, if overcoming significant resistance or achieving strong driving force is required, a hydraulic cylinder is an ideal choice.

[0035] Specifically, in this embodiment, the driving mechanism is an electric slide table.

[0036] An electric slide table is a mechanical device that converts the rotary motion of an electric motor into linear motion through a precision transmission mechanism (such as a ball screw or synchronous belt). It typically consists of core components such as a motor, coupling, transmission mechanism, linear guide rail, and slider. As the drive mechanism 2 in the tracking cutter 106, the electric slide table can precisely control the linear displacement of the sliding frame 12, thereby achieving synchronous movement and rapid retraction of the cutting die 6 and the anchor rod.

[0037] In some embodiments described above in this application, a sliding frame is proposed to drive the cutting mold and the anchor rod to move synchronously. However, in actual production, the seam anchor rod will undergo a certain deformation during the bending process, which will cause the position of the seam anchor rod to shift. Therefore, it is necessary to adjust the cutting position of the seam anchor rod longitudinally.

[0038] In this regard, this application further proposes that the sliding frame includes a lower plate 121, on which two parallel vertical plates 122 are formed. The vertical plates are provided with longitudinal slide rails, and longitudinal sliders are mounted on the longitudinal slide rails. Support plates 32 are mounted on multiple longitudinal sliders, and a cutting mold is mounted on the support plates. A hinge seat 123 is provided between the two vertical plates, and a cylinder 31 is mounted on the hinge seat. The telescopic rod of the cylinder is connected to a support at the bottom of the support plate. Through the telescopic adjustment of the cylinder, the seam anchor rod can be kept within the cutting channel of the cutting mold.

[0039] Specifically, the lower plate 121 serves as the basic structure of the sliding frame, providing a stable mounting platform to support and fix the various components above it. The lower plate 121 can be made of high-strength steel plate or aluminum alloy plate to ensure sufficient rigidity and stability, or it can be made of honeycomb composite material to reduce overall weight. Two parallel vertical plates 122 are formed on the lower plate 121. These vertical plates 122 provide precise mounting references and support for the longitudinal slide rails, ensuring the accuracy and stability of longitudinal movement. These vertical plates 122 can be integrally formed with the lower plate 121, for example, through precision casting or milling, or they can be independently machined and then fixed to the lower plate 121 by bolts or welding. The vertical plates 122 are equipped with longitudinal slide rails, which are key components for realizing the longitudinal adjustment of the cutting mold, providing precise linear motion guidance for the longitudinal slider. The longitudinal slide rail can employ linear guide pairs, such as ball linear guides or roller linear guides, to provide high-precision and low-friction motion. It can also employ dovetail guides or V-shaped guides to adapt to different load-bearing and precision requirements. The longitudinal slide rail is equipped with longitudinal sliders, which cooperate with the longitudinal slide rail to achieve smooth sliding of the support plate 32. The longitudinal sliders can be slider units that cooperate with ball linear guides or sliding blocks that cooperate with dovetail guides. Support plates 32 are mounted on multiple longitudinal sliders. These support plates 32 directly support the cutting die and move along the longitudinal slide rail with the longitudinal sliders, thereby achieving longitudinal position adjustment of the cutting die. The support plate 32 is typically a sturdy metal plate, such as a steel or aluminum plate, connected to the longitudinal sliders by bolts or other fasteners. The cutting die, which is the tool for directly cutting the seamed pipe anchor rod, is mounted on the support plate 32. The cutting die can be installed on the support plate 32 using bolt fixing, quick-clamping mechanisms, or slotted engagement methods for easy replacement and maintenance. A hinge seat 123 is provided between the two vertical plates 122. This hinge seat 123 provides a stable pivot connection point for the cylinder 31, ensuring that the cylinder 31 can effectively drive the support plate 32 for longitudinal adjustment. The hinge seat 123 can be a U-shaped bracket connected to the cylinder 31 via a pin, or a ball joint connector to allow for a certain degree of freedom. The cylinder 31 is mounted on the hinge seat 123. The cylinder 31 acts as an actuator, driving the support plate 32 to move along the longitudinal slide rail through its telescopic movement, thereby realizing the longitudinal position adjustment of the cutting mold. The cylinder 31 can be a single-acting cylinder or a double-acting cylinder, selected according to the required push-pull force, speed, and control precision. It can also be a hydraulic cylinder or an electric push rod. The telescopic rod of the cylinder 31 is connected to a support at the bottom of the support plate. This support is the connection point between the cylinder 31 and the support plate 32, used to transmit the push-pull force of the cylinder 31 to the support plate 32. The support can be a lug welded to the bottom of the support plate 32, or a connecting block fixed by bolts.

[0040] Through the above technical solution, this application provides an effective longitudinal adjustment mechanism to address the problem of cutting position deviation caused by deformation of the sewn pipe anchor rod during actual production. Specifically, when the sewn pipe anchor rod bends or deforms during pipe manufacturing, its actual position in the cutting die may deviate from the preset cutting channel. At this time, by adjusting the extension and retraction of the cylinder 31, the support plate 32, on which the cutting die is mounted, can be driven to make precise displacement along the longitudinal slide rail. This dynamic longitudinal adjustment capability allows the cutting die to track the actual position of the sewn pipe anchor rod in real time, ensuring that the sewn pipe anchor rod is always in the cutting channel of the cutting die, thereby guaranteeing the accuracy of the cutting position. In view of this, this solution significantly improves the cutting accuracy and product quality of the sewn pipe anchor rod, effectively avoids the increase in scrap rate caused by deformation, reduces production costs, and improves overall production efficiency.

[0041] In some of the embodiments described above in this application, a drive mechanism is proposed to drive the sliding frame to move the cutting die and the anchor rod synchronously and retract. However, in its implementation, since the electric cylinder needs to extend and retract multiple times, zero-point drift will occur after long-term use, resulting in inaccurate return position, which affects the cutting accuracy and equipment stability.

[0042] In this regard, this application further proposes that a positioning mechanism is provided on the side wall of the vertical plate. The positioning mechanism includes a connecting rod 41, a longitudinal rod 42 and a photoelectric sensor 43. The longitudinal rod 42 is connected to the side wall of the vertical plate through the connecting rod 41. Multiple photoelectric sensors 43 are provided on the longitudinal rod. In cooperation with this, a movable plate 44 that cooperates with the sensors is provided on the support plate.

[0043] Specifically, the positioning mechanism is a device used to accurately determine or calibrate the position of mechanical parts. Its core function is to solve the zero-point drift problem of the electric cylinder and ensure accurate return of the cutting mold. Besides the photoelectric sensor combined with a moving plate method used in this application, the positioning mechanism can also use mechanical limit blocks combined with micro switches, magnetic induction sensors combined with magnetic markers, or ultrasonic sensors combined with reflective surfaces to achieve accurate position detection and positioning. The connecting rod 41 serves as a mechanical connector, used to fix or support the longitudinal rod 42 on the side wall of the vertical plate. The connecting rod 41 can be designed as a rigid rod of fixed length, connected by bolts or welding; or it can be designed as an adjustable length connecting rod to facilitate fine-tuning of the position of the longitudinal rod 42 during installation or debugging. The longitudinal rod 42 provides a stable mounting base for multiple photoelectric sensors 43, allowing them to be arranged along a specific direction. The longitudinal rod 42 can be a fixed rod, on which the photoelectric sensors 43 are fixed at preset intervals. The multiple photoelectric sensors 43 are used to detect the position of the moving plate 44 and convert the position information into an electrical signal through photoelectric conversion. The photoelectric sensor 43 can be a through-beam sensor with a separate transmitter and receiver, triggering a signal when the moving plate 44 blocks the light path; or it can be a reflective sensor with an integrated transmitter and receiver, triggering a signal when the moving plate 44 reflects light. Setting multiple sensors allows for multi-point detection, improving positioning accuracy and reliability, or for detecting different preset positions. The moving plate 44 serves as the detection target of the photoelectric sensor 43, and its position changes are captured by the sensor. The moving plate 44 can be a simple metal or plastic plate, with edge or surface characteristics matching the working principle of the photoelectric sensor 43; or specific markings or holes can be set on the moving plate 44 to cooperate with the photoelectric sensor 43 for precise position identification.

[0044] When the electric cylinder drives the sliding frame to move, the moving plate 44 moves accordingly. When the photoelectric sensor 43 detects that the moving plate 44 has reached the preset "zero point" position, it outputs a signal. This signal is received by the PLC control unit and used to calibrate or stop the movement of the electric cylinder, thereby ensuring that the cutting die returns to its accurate position. During the entire cutting cycle, when the cutting blade accurately cuts according to the PLC command, the cutting die moves synchronously with the seam anchor rod after the cutting blade falls. After the cutting is completed, the cutting blade rises, the cutting die separates from the seam anchor rod, and the cutting die quickly returns to its position under the action of the cylinder. The return position is determined by the photoelectric sensor. The PLC control unit precisely controls the extension and retraction of the electric cylinder and the return action of the cylinder according to the production command and the real-time position feedback from the photoelectric sensor 43. When the photoelectric sensor 43 detects that the moving plate 44 is at the "zero point" position, the PLC confirms that the cutting die has returned to its accurate position and prepares to execute the next cutting cycle.

[0045] In some of the solutions described above in this application, a cutting mold is proposed to move synchronously with the anchor rod when cutting it. However, in its implementation, there may be problems such as inaccurate control and low degree of automation, resulting in inaccurate cutting position or low efficiency.

[0046] In response, this application further proposes a cutting mold 6, which includes a base plate 67, a top plate 61, and a lifting plate 63. The base plate 67 serves as the lower support structure of the cutting mold, providing a stable foundation for the entire cutting mechanism and supporting the cutting blade 68 and the guide block 66. The top plate 61 serves as the upper support structure of the cutting mold, used to mount the hydraulic cylinder 62 and the guide rods 65. The lifting plate 63, located between the base plate 67 and the top plate 61, is a key component for achieving the vertical movement of the cutting blade 68. Multiple guide rods 65 are provided between the base plate 67 and the top plate 61. The function of these guide rods 65 is to ensure that the lifting plate 63 performs smooth and precise linear movement in the vertical direction, effectively preventing lateral swaying or skew during the cutting process, thereby ensuring cutting accuracy. The guide rods 65 can be cylindrical rods made of high-strength steel, sliding in conjunction with linear bearings on the lifting plate 63; or they can be square guide rails, guided in conjunction with sliding bushings. A lifting plate 63 is slidably fitted onto the guide rod 65, allowing the lifting plate 63 to move up and down along the guide rod 65. Specifically, the lifting plate 63 may have a through hole matching the guide rod 65, and a self-lubricating bearing or linear bearing may be embedded in the hole to reduce frictional resistance and ensure smooth lifting movement and positioning accuracy. A hydraulic cylinder 62 is provided on the top plate 61, which is the actuator that provides vertical movement power to the lifting plate 63. It drives the piston rod to extend and retract through the pressure of hydraulic oil, thereby driving the lifting plate 63 to move up and down. The hydraulic cylinder 62 may be a double-acting hydraulic cylinder, achieving bidirectional movement through hydraulic pressure and providing more precise control. The extension rod of the hydraulic cylinder 62 is connected to the top of the lifting plate 63. This connection method ensures that the thrust or pull generated by the hydraulic cylinder 62 can be efficiently and accurately transmitted to the lifting plate 63, driving it to perform lifting movements. The connection method may be a threaded connection, a pin connection, or a flange connection to ensure the strength and reliability of the connection. The bottom of the lifting plate 63 is equipped with a cutting blade 68, which is a tool for directly cutting the seamed pipe anchor rod. It is typically made of high-strength, wear-resistant alloy steel or hard alloy material and is securely installed on the bottom of the lifting plate 63 by bolts, slots, or other fixing methods to complete the cutting action when the lifting plate 63 descends. A guide block 66 is formed on the base plate 67. The main function of the guide block 66 is to guide the seamed pipe anchor rod accurately into the cutting area and provide necessary support to ensure stability during the cutting process. The guide block 66 can be a structure integrally formed on the base plate 67, or it can be a separately machined component fixed to the base plate 67 by bolts or other means. Its material can be wear-resistant steel or polyurethane with a certain degree of elasticity. A cutting channel 661 is formed in the middle of the guide block 66 to accommodate the seamed pipe anchor rod. The cutting channel 661 is designed to precisely position the seamed pipe anchor rod, ensuring that it remains in the correct position throughout the cutting process, thereby guaranteeing the accuracy of the cutting position.The shape and size of the channel should match the outer diameter of the seam anchor bolt to be processed. For example, it can be a circular, elliptical, or V-shaped groove to accommodate anchor bolts of different specifications.

[0047] A hydraulic station is located on one side of the tracking cutter 106. This hydraulic station is an independent unit that provides hydraulic power to the hydraulic cylinder 62, typically including core components such as a hydraulic pump, oil tank, filter, pressure gauge, and various control valve groups. The hydraulic station can be a standalone device connected to the hydraulic cylinder 62 via hydraulic pipelines; or it can be a compact hydraulic system integrated within the tracking cutter 106. The hydraulic station's control solenoid valve relay is connected to the PLC control unit. The solenoid valve relay acts as the interface between electrical control and hydraulic actuation, receiving electrical signals from the PLC control unit and converting them into commands to control the solenoid valves in the hydraulic station, thereby precisely controlling the flow and pressure of the hydraulic oil, and ultimately controlling the extension and retraction of the hydraulic cylinder 62. The PLC control unit (Programmable Logic Controller) is the central control brain of the entire cutting process, responsible for receiving signals from various sensors, executing preset control programs, and issuing control commands to the solenoid valve relays to achieve automated operation. Ultimately, the cutting process of the sewn tube production process is computer-controlled. Computer control is achieved through host computer software or a human-machine interface (HMI) for programming, parameter setting, and real-time monitoring of the PLC control unit. Operators can input process parameters such as cutting length and cutting frequency on the computer interface. The PLC control unit precisely controls the action of the hydraulic cylinder 62 based on these parameters and feedback signals from sensors such as the rotary encoder, thereby achieving a high degree of automation, intelligence and precision in the cutting process of the welded pipe anchor rod.

[0048] Through the above technical solution, the coordinated operation of the base plate 67, top plate 61, lifting plate 63, and guide rod 65 of the cutting mold 6 constructs a structurally stable and precisely moving cutting mechanism, ensuring the smooth and reliable vertical lifting movement of the cutting blade 68 and effectively avoiding swaying and deflection during the cutting process. The guide block 66 and the cutting channel 661 formed inside it can accurately position and guide the seam anchor rod, thereby ensuring the accuracy of the cutting position. The hydraulic cylinder 62, as a powerful actuator, provides sufficient cutting power for the cutting blade 68, and through its connection with the hydraulic station, solenoid valve relay, and PLC control unit on the tracking cutting machine 106 side, a high degree of automation and precise control of the cutting process is achieved. The introduction of computer control makes the setting of cutting parameters more flexible and convenient, and real-time monitoring of the production process possible, significantly improving the cutting accuracy and production efficiency, reducing reliance on manual intervention, and thus reducing operating difficulty and production costs. In particular, when the cutting die 6 is combined with the tracking cutting mechanism of the tracking cutter 106, high-precision synchronous cutting can be achieved even when the seam anchor rod is moving, further improving the automation level of the entire production line and the quality of the final product.

[0049] In some of the solutions mentioned above in this application, the cutting mold and the anchor rod are moved synchronously for precise cutting. However, in the process of implementation, due to the lack of a real-time and accurate length measurement mechanism, the cutting position may have accumulated errors or offsets, resulting in inconsistent rod lengths, which affects product quality and subsequent installation effect.

[0050] To address this, this application further proposes a length control scheme, in which a transmission rubber wheel is provided on one side of the cutting channel 661. This transmission rubber wheel contacts the surface of the seam-sealed pipe anchor and rotates as the anchor moves, thereby converting the linear displacement of the anchor into rotational motion. To ensure reliable contact and precise transmission between the transmission rubber wheel and the anchor, the transmission rubber wheel can be made of a wear-resistant material with a high coefficient of friction, such as polyurethane or special rubber, and can be designed to apply appropriate pressure via a spring or cylinder, ensuring its sidewalls are tightly pressed against the anchor to eliminate slippage and guarantee transmission accuracy. A rotary encoder is installed on the shaft of the transmission rubber wheel. This rotary encoder converts the rotational angular displacement or angular velocity of the wheel shaft into corresponding electrical pulse signals via a photoelectric conversion mechanism and outputs them in digital form. For example, an incremental rotary encoder can be used, which converts rotational motion into a series of pulse signals through a grating disk and a photodetector; or an absolute rotary encoder can be used, which directly outputs a digital code corresponding to the angular position. These digitally output electrical pulse signals are transmitted to the PLC control unit. The PLC control unit, as the core of the entire equipment, receives and processes pulse signals from the rotary encoder and calculates the actual movement distance of the pipe anchor rod through its internal program. For example, the PLC can accumulate the number of pulses in real time based on the number of pulses per encoder revolution and the circumference of the transmission rubber wheel, thereby accurately calculating the travel length of the pipe anchor rod. Based on this, the PLC control unit can control the length of the rod; that is, when the pipe anchor rod moves to the preset cutting length, the PLC control unit will issue a cutting command, triggering the cutting mold 6 to perform the cutting operation. In practical applications, the highest production speed of existing pipe manufacturing lines can reach 30m / min, or 500mm / s. Therefore, the diameter of the transmission rubber wheel on the rotary encoder can be set to 100mm, with a circumference of approximately 314.2mm. Calculated based on the maximum production speed, the rotary encoder angular displacement can reach 573°, and the encoder frequency is 1024Hz. According to the theoretical accuracy of the encoder, the system can control the product length accuracy to 0.5mm. After actual production verification, the length tolerance can be effectively controlled within ±2mm.

[0051] Through the above technical solution, when the tracking cutter 106 cuts the seamd pipe anchor rod, the transmission rubber wheel is in close contact with the seamd pipe anchor rod, accurately converting the linear movement of the anchor rod into the rotational motion of the rubber wheel. A rotary encoder converts this rotational motion into digital electrical pulse signals in real time and with high precision through photoelectric conversion, and transmits them to the PLC control unit. The PLC control unit accurately calculates the actual travel length of the seamd pipe anchor rod based on these digital signals, thus enabling real-time and accurate monitoring of the anchor rod's current position and travel distance. When the seamd pipe anchor rod reaches the preset cutting length, the PLC control unit immediately issues a cutting command, ensuring that the cutting blade 68 falls at the precise position to complete the cutting operation. This length control mechanism, combined with the synchronous tracking movement function of the cutting mold 6, effectively solves the problem of accumulated errors and offsets in the cutting position caused by the lack of real-time accurate measurement, ensuring the length consistency of each seamd pipe anchor rod and significantly improving product quality. Simultaneously, this solution achieves automated and high-precision control of the seamd pipe anchor rod length, reducing manual intervention, improving production efficiency and product qualification rate, and lowering production costs.

[0052] In some of the solutions described above in this application, a cutting blade is proposed for cutting seam anchor bolts. However, in the process of implementation, the shape of the cutting blade may result in irregular cutting edges or easy damage to the blade, affecting cutting accuracy and equipment stability.

[0053] In this regard, this application further proposes that the cutting blade 68 is T-shaped. The T-shaped cutting blade 68 means that its cross-sectional shape is T-shaped. This T-shaped structure can be implemented in various ways. For example, one implementation is that the blade body of the cutting blade 68 has a T-shaped cross-section, where the horizontal part of the T-shape is the upper part or support part of the blade body, and the vertical part of the T-shape extends to form the cutting edge. Another implementation is that the cutting edge of the cutting blade 68 is designed to be T-shaped, that is, the bottom of the cutting edge is narrower, while the part connecting to the blade body above it gradually widens to form a T-shaped structure. Regardless of the specific form adopted, the T-shaped structure aims to enhance the overall rigidity and strength of the cutting blade 68, enabling it to withstand greater impact and pressure during cutting without easily deforming or being damaged.

[0054] In some of the solutions described above in this application, a guide block is proposed to accommodate the seam anchor rod as it passes through the cutting channel and guides the cutting process. However, during its implementation, the cutting blade may not be able to enter smoothly or be accurately aligned when inserted due to the lack of a precise guide path, resulting in a deviation in the cutting position, tool jamming, or increased wear, which affects the cutting accuracy and mold life.

[0055] In this regard, this application further proposes that the guide block 66 and the base plate 67 are provided with a through-cutting groove 671 to accommodate the insertion of the cutting blade 68.

[0056] Through the above technical solution, a through-slot 671 is provided on the guide block 66 and the base plate 67, providing a precise and continuous guide path for the cutting blade 68. When the cutting blade 68 descends for the cutting operation, it is strictly constrained by the through-slot 671, ensuring that the cutting blade 68 is always accurately inserted along the predetermined trajectory, thereby avoiding deviation, jamming, or abnormal friction with the mold components caused by the lack of guidance. This precise guiding mechanism significantly improves the smoothness of the insertion of the cutting blade 68, ensures the accuracy of the cutting position, effectively reduces possible tool jamming and wear during the cutting process, and thus improves the cutting accuracy and the service life of the cutting mold 6. Especially when the cutting blade 68 is T-shaped, its specific geometry requires even higher insertion accuracy. The through-slot 671 can better match the T-shaped cutting blade 68, ensuring its precise alignment and efficient operation in the cutting channel 661.

[0057] Furthermore, a sleeve 64 is slidably fitted on the guide rod, and the sleeve is welded to the side wall of the lifting plate.

[0058] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A post-pressing punching device for producing welded pipe anchor bolts, comprising a heavy-duty pipe forming machine and a tracking cutter, characterized in that, The tracking cutter is located behind the heavy-duty pipe forming machine. The tracking cutter includes a frame with two transverse slide rails. Transverse sliders are installed on the transverse slide rails, and sliding frames are installed on multiple transverse sliders. A drive mechanism is provided between the two transverse slide rails. A cutting die is installed on the sliding frame. When the cutting die cuts the anchor rod, the drive mechanism can drive the sliding frame to move the cutting die synchronously with the anchor rod. After the cutting is completed, the cutting die separates from the anchor rod, and the drive mechanism drives the cutting die to retract.

2. The post-pressing punching equipment for producing welded pipe anchors according to claim 1, characterized in that, The drive mechanism is one of an electric slide, an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder.

3. The post-pressing punching equipment for producing welded pipe anchors according to claim 1 or 2, characterized in that, The sliding frame includes a lower plate with two parallel vertical plates. The vertical plates are provided with longitudinal slide rails and longitudinal sliders. Support plates are installed on multiple longitudinal sliders. A cutting mold is installed on the support plates. A hinge seat is provided between the two vertical plates. A cylinder is installed on the hinge seat. The telescopic rod of the cylinder is connected to a support at the bottom of the support plate.

4. The post-pressing punching equipment for producing welded pipe anchors according to claim 3, characterized in that, A positioning mechanism is provided on the side wall of the vertical plate. The positioning mechanism includes a connecting rod, a longitudinal rod, and a photoelectric sensor. The longitudinal rod is connected to the side wall of the vertical plate by the connecting rod. Multiple photoelectric sensors are provided on the longitudinal rod. A movable plate that cooperates with the sensors is provided on the support plate.

5. The post-pressing punching equipment for producing welded pipe anchors according to claim 1, characterized in that, The cutting mold includes a base plate, a top plate, and a lifting plate. Multiple guide rods are provided between the base plate and the top plate. The lifting plate is slidably fitted on the guide rods. A hydraulic cylinder is provided on the top plate. The telescopic rod of the hydraulic cylinder is connected to the top of the lifting plate. A cutting blade is provided at the bottom of the lifting plate. A guide block is formed on the base plate. A cutting channel for accommodating the passage of the seam pipe anchor rod is formed in the middle of the guide block.

6. The post-pressing punching equipment for producing welded pipe anchors according to claim 5, characterized in that, A transmission rubber wheel is provided on one side of the cutting channel, and a rotary encoder is installed on the shaft of the rubber wheel. The side wall of the transmission rubber wheel presses against the seam pipe anchor rod.

7. The post-pressing punching equipment for producing welded pipe anchors according to claim 5, characterized in that, The cutting blade is T-shaped.

8. The post-pressing punching equipment for producing welded pipe anchors according to claim 5, characterized in that, The guide block and the base plate are provided with through-blade grooves to accommodate the insertion of the cutting blade.

9. The post-pressing punching equipment for producing welded pipe anchors according to claim 5, characterized in that, A sleeve is slidably fitted onto the guide rod, and the sleeve is welded to the side wall of the lifting plate.

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