Shelf cross-axis integrated forming system and forming method

Abstract

The present application belongs to the technical field of bicycle accessories, and relates to a shelf mounting accessory, in particular to a shelf cross shaft integrated forming system. The system comprises a wire unwinding device, a straightening device, a punching device and a cutting device which are sequentially installed from upstream to downstream. The feeding side of the device at the downstream and the discharging side of the previous device are connected. The wire unwinding device comprises a wire unwinding roller outside which is wound with a steel wire. The straightening device comprises multiple groups of extrusion guide wheels. The extrusion guide wheels in the same group are used for extruding the steel wire. The punching device is installed at the discharging side of the straightening device. The punching device comprises two cutter heads which can press the steel wire flat and punch a hole in the radial direction under the pressing state. The cutting device is used for forming and cutting the steel wire after the hole is punched.

Description

Technical Field

[0001] This invention relates to the field of bicycle accessory technology, specifically to rack installation accessories, and in particular to an integrated rack crossbar molding system. Background Technology

[0002] With the acceleration of urbanization and the strengthening of people's environmental awareness, bicycles have returned to people's attention. The rack is a common accessory for bicycles, which generally adopts a "well" structure formed by the interlocking of the longitudinal and transverse axes.

[0003] During manufacturing, the horizontal and vertical shafts are made separately and then welded together as a whole. The horizontal shaft is shaped like a "[", meaning it has a concave center and protruding sides. Through holes for fixing to the connecting rod are made at the protruding sides.

[0004] Currently, the processing of horizontal shafts generally involves multiple steps, including straightening the steel wire, cutting the straightened wire, punching holes in each section of wire in a stamping machine, and finally extruding the perforated wire into shape. These steps are independent of each other, and the design is not well-coordinated, resulting in wasted time and labor for transportation. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rationally structured, integrated molding system that completes the entire process from wire straightening to material discharge.

[0006] The technical solution adopted in this invention is:

[0007] The integrated forming system for the horizontal axis of a shelving unit is characterized by comprising a wire feeding device, a straightening device, a punching device, and a cutting device installed sequentially from upstream to downstream of the process. The feeding side of the downstream device is connected to the discharge side of the preceding device. The wire feeding device includes a wire feeding roller with steel wire wound around its exterior. The straightening device includes multiple sets of extrusion guide rollers, which are used to extrude steel wire. A punching device is installed on the discharge side of the straightening device. The punching device includes two cutting heads, which, when pressed down, can flatten the steel wire radially and punch holes. The cutting device is used to form and cut the perforated steel wire.

[0008] Furthermore, a wire guide device is installed between the wire feeding device and the straightening device. The wire guide device includes a horizontal plate and a vertical plate, which are connected end to end and fixed together. The horizontal plate and the vertical plate are perpendicular to each other. Multiple wire guide wheels are installed in the horizontal plate and the vertical plate respectively. The multiple wire guide wheels in the horizontal plate and the vertical plate are staggered. Each wire guide wheel has a groove on its outer circumference. The horizontal positions of the grooves of each wire guide wheel are corresponding, which can guide the same steel wire to pass through sequentially.

[0009] Furthermore, the straightening device includes a back plate installed vertically. Multiple sets of extrusion guide rollers are installed on the front end face of the back plate. Each set includes two extrusion guide rollers. The outer circumferential surface of each extrusion guide roller is grooved. The outer circumferences of the two extrusion guide rollers in the same set are arranged opposite each other. The steel wire is extruded through the grooves between the two guide rollers. A fixed plate is installed at the axial position of the upper extrusion guide roller in each set. The fixed plate is threaded to the end of a lead screw in the radial direction. A handwheel is installed through the back plate at the upper end of the lead screw.

[0010] Furthermore, the stamping device includes a base, on which a hydraulic cylinder is suspended. A lifting plate is installed at the end of the piston rod of the hydraulic cylinder. A locking block is installed in the middle of the base and on the bottom surface of the lifting plate. The two locking blocks have grooves formed in their opposite end faces along the direction of wire conduction. When the two locking blocks are in contact with each other, they can clamp and limit the wire. A stamping seat is installed at a symmetrical position on both sides of the locking block at the upper end of the base. The cutting head is installed in the bottom surface of the lifting plate above the stamping seat. The stamping seat is located at the orthographic projection position of the cutting head in the vertical direction on the same side.

[0011] Furthermore, the cutting device includes a base, above which a hydraulic cylinder is suspended. A stamping plate is installed at the end of the piston rod of the hydraulic cylinder. An upper stamping block is installed at the bottom of the stamping plate, and lower stamping blocks are symmetrically installed on both sides of the stamping plate. When the stamping plate is pressed down, the upper stamping block and the lower stamping blocks on both sides come into close contact to form a shearing force to cut the steel wire.

[0012] Furthermore, the bottom sides of the upper stamping block are recessed inward, forming a gap between the recessed position and the lower stamping block on the same side.

[0013] Furthermore, the inwardly recessed positions on both sides of the bottom of the upper stamping block are made into a trapezoidal structure that is wider at the bottom and narrower at the top, that is, the width length of the bottom surface is greater than the width length of the recessed position above the bottom surface.

[0014] The molding method using the aforementioned one-piece molding system includes the following steps:

[0015] Step 1: The feed roller rotates circumferentially to feed the wire outwards;

[0016] Step 2: The steel wire is guided from the output side of the wire feeding roller into the wire guide device, and the axial position of the steel wire is adjusted under the action of the wire guide wheel to correspond with the straightening position of the wire inlet of the straightening device;

[0017] Step 3: The steel wire passes through multiple sets of extrusion guide rollers in sequence until the bent steel wire is in an axially straightened state;

[0018] Step 4: The end of the steel wire enters the stamping device and passes through the position between the clamping blocks. At this time, under the action of the hydraulic cylinder, the lifting plate presses down to clamp the clamping blocks and the rear of the steel wire. At the same time, the cutter head and the stamping seat cooperate to complete the punching and flattening.

[0019] Step 5: The portion between the flattened positions of the steel wire is conveyed to the two lower punching blocks of the cutting device. At this time, under the action of the hydraulic cylinder, the upper punching plate moves down and presses down between the two flattened positions to form a shape similar to "[". The shearing force formed by the upper and lower punching plates cuts off the end of the finished product connected to the steel wire.

[0020] The advantages and positive effects of this invention are:

[0021] In this invention, the manufacturing process of the rear axle of a bicycle rack is optimized, and various corresponding devices are designed based on the optimized process. These devices work together to form a complete processing system. This system uses a wire feeding device, a straightening device, a stamping device, and a cutting device to form a complete processing flow.

[0022] In this invention, the wire guide device installed between the straightening device and the wire feeding device can pre-adjust the curved wire led out by the wire feeding device before straightening, so that the axial position of the wire end corresponds to the position entering the straightening device, effectively avoiding shaking and misalignment during the wire feeding process and preventing the wire end from falling off the straightening device.

[0023] In this invention, the straightening device uses multiple sets of extrusion guide rollers in cooperation. The steel wire can be extruded radially through the groove between two extrusion guide rollers, thereby completing the straightening.

[0024] In this invention, the stamping device includes a base and a hydraulic cylinder, which controls the lifting plate to reciprocate towards the base. Clamping blocks installed within the base and lifting plate are used to clamp and limit the steel wire. The stamping seat and cutting head are aligned, and the stamping seat is used to flatten the steel wire positions on both sides of the clamping blocks downwards, ultimately creating a through hole in the center of the flattened position using the cutting head.

[0025] In this invention, the flattened and perforated steel wire is not cut off but remains integrally connected and moves downstream in the process. Finally, it is shaped, cut, and discharged under the action of the cutting device. The bottom sides of the upper punch block are concave inwards, and after contacting the steel wire, the middle part presses the wire down, while the two ends of the wire swing upwards within the grooves to form the wire. The connection point between the steel wire in the forming part and the steel wire in the conveying part is located between the upper and lower punch blocks. The shearing force generated by the staggered movement of the upper and lower punch blocks cuts the wire, which then slides down under its own weight for discharge.

[0026] In this invention, the newly designed processing flow has been optimized compared to the traditional process. The cutting process is moved to the end, and the stamping and punching are combined, so that the steel wire can be completed in one piece from the wire feeding stage to the product output. Not only is the processing flow more reasonable, but the connection is also tighter. There is no need to transport during the processing, which greatly saves labor and effectively improves processing efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention;

[0028] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0029] Figure 3 for Figure 2 Enlarged view of a section in the middle C;

[0030] Figure 4 for Figure 1 Enlarged view of part B in the middle;

[0031] Figure 5 This is a schematic diagram of the straightening device. Detailed Implementation

[0032] The present invention will be further described below with reference to the embodiments. The embodiments described below are illustrative and not limiting, and should not be used to limit the scope of protection of the present invention.

[0033] The innovative feature of this integrated shelving horizontal axis forming system lies in its sequentially installed components: a wire feeding device 5, a straightening device 3, a stamping device 2, and a cutting device 1. This sequence represents the upstream to downstream of the process, with the feeding side of the downstream device connected to the discharge side of the preceding device. The wire feeding device includes a wire feeding roller with steel wire wound around its exterior. The straightening device includes multiple sets of extrusion guide rollers, which are used to extrude the steel wire. A stamping device is installed on the discharge side of the straightening device, comprising two cutting heads that, when pressed down, flatten and punch holes in the steel wire radially. The cutting device is used to shape and cut the perforated steel wire.

[0034] In this embodiment, the wire feeding roller can be powered by a motor for active output, or a traction device can be installed on the wire exit side for passive output.

[0035] In this embodiment, the straightening device includes a back plate 32, which is installed vertically. Multiple sets of extrusion guide rollers are installed in the front end face of the back plate. Each set includes two extrusion guide rollers. The outer circumferential surface of each extrusion guide roller is provided with a groove. The outer circumferences of the two extrusion guide rollers in the same set are arranged opposite each other. The steel wire is transmitted through the grooves between the two guide rollers for extrusion. A fixed plate is installed at the axial position of the upper extrusion guide roller 34 in each set. The fixed plate is threaded to the end of a lead screw in the radial direction. A handwheel 31 is installed through the back plate at the upper end of the lead screw. The lower extrusion guide roller is a fixed guide roller 33.

[0036] In this embodiment, a wire guide device 4 is installed between the straightening device and the wire feeding device. The wire guide device includes a horizontal plate 43 and a vertical plate 41, which are integrally fixed and perpendicular to each other. Multiple wire guide wheels 42 are installed in the horizontal and vertical plates, and the multiple wire guide wheels in the horizontal and vertical plates are staggered. Each wire guide wheel has a groove on its outer circumference, and a common steel wire can be guided through the groove of each wire guide wheel sequentially.

[0037] In this embodiment, the stamping device includes a base, on which a hydraulic cylinder is suspended. A lifting plate 21 is installed at the end of the piston rod of the hydraulic cylinder. A locking block 22 is installed in the middle of the base and the bottom surface of the lifting plate, respectively. The two locking blocks have grooves formed in their opposite end faces along the direction of wire conduction. When the two locking blocks are in contact with each other, they can clamp and limit the wire. A stamping seat 24 is installed at a symmetrical position on both sides of the locking block at the upper end of the base. The cutting head 23 is installed in the bottom surface of the lifting plate above the stamping seat. The stamping seat is located at the orthographic projection position of the cutting head in the vertical direction on the same side.

[0038] In this embodiment, the cutting device includes a base, on which a hydraulic cylinder is suspended. A stamping plate 11 is installed at the end of the piston rod of the hydraulic cylinder. An upper stamping block 12 is installed at the bottom of the stamping plate, and lower stamping blocks 13 are symmetrically installed on both sides of the stamping plate. When the stamping plate is pressed down, the upper stamping block and the lower stamping blocks on both sides are in close contact to form a shearing force to cut the steel wire.

[0039] In this embodiment, the bottom sides of the upper punch block are recessed inward, and a gap is formed between the recessed position 14 and the lower punch block on the same side.

[0040] In this embodiment, the inwardly recessed positions on both sides of the bottom of the upper stamping block are made into a trapezoidal structure that is wider at the bottom and narrower at the top, that is, the width length of the bottom surface 15 is greater than the width length of the recessed position above the bottom surface.

[0041] The process of using this invention is as follows:

[0042] The use of this invention includes the following steps:

[0043] Step 1: The feed roller rotates circumferentially to feed the wire outwards;

[0044] Step 2: The steel wire is guided from the output side of the wire feeding roller into the wire guide device, and the axial position of the steel wire is adjusted under the action of the wire guide wheel to correspond with the straightening position of the wire inlet of the straightening device;

[0045] Step 3: The steel wire passes through multiple sets of extrusion guide rollers in sequence until the bent steel wire is in an axially straightened state;

[0046] Step 4: The end of the steel wire enters the stamping device and passes through the position between the clamping blocks. At this time, under the action of the hydraulic cylinder, the lifting plate presses down to clamp the clamping blocks and the rear of the steel wire. At the same time, the cutter head and the stamping seat cooperate to complete the punching and flattening.

[0047] Step 5: The portion between the flattened positions of the steel wire is conveyed to the two lower punching blocks of the cutting device. At this time, under the action of the hydraulic cylinder, the upper punching plate moves down and presses down between the two flattened positions to form a "[" shape. The shearing force formed by the upper and lower punching plates cuts off the end of the finished product connected to the steel wire.

[0048] In this invention, the manufacturing process of the rear axle of a bicycle rack is optimized, and various corresponding devices are designed based on the optimized process. These devices work together to form a complete processing system. This system uses a wire feeding device, a straightening device, a stamping device, and a cutting device to form a complete processing flow.

[0049] In this invention, the wire guide device installed between the straightening device and the wire feeding device can pre-adjust the curved wire led out by the wire feeding device before straightening, so that the axial position of the wire end corresponds to the position entering the straightening device, effectively avoiding shaking and misalignment during the wire feeding process and preventing the wire end from falling off the straightening device.

[0050] In this invention, the straightening device uses multiple sets of extrusion guide rollers in cooperation. The steel wire can be extruded radially through the groove between two extrusion guide rollers, thereby completing the straightening.

[0051] In this invention, the stamping device includes a base and a hydraulic cylinder, which controls the lifting plate to reciprocate towards the base. Clamping blocks installed within the base and lifting plate are used to clamp and limit the steel wire. The stamping seat and cutting head are aligned, and the stamping seat is used to flatten the steel wire positions on both sides of the clamping blocks downwards, ultimately creating a through hole in the center of the flattened position using the cutting head.

[0052] In this invention, the flattened and perforated steel wire is not cut off but remains integrally connected and moves downstream in the process. Finally, it is shaped, cut, and discharged under the action of the cutting device. The bottom sides of the upper punch block are concave inwards, and after contacting the steel wire, the middle part presses the wire down, while the two ends of the wire swing upwards within the grooves to form the wire. The connection point between the steel wire in the forming part and the steel wire in the conveying part is located between the upper and lower punch blocks. The shearing force generated by the staggered movement of the upper and lower punch blocks cuts the wire, which then slides down under its own weight for discharge.

[0053] In this invention, the newly designed processing flow has been optimized compared to the traditional process. The cutting process is moved to the end, and the stamping and punching are combined, so that the steel wire can be completed in one piece from the wire feeding stage to the product output. Not only is the processing flow more reasonable, but the connection is also tighter. There is no need to transport during the processing, which greatly saves labor and effectively improves processing efficiency.

Claims

1. A shelving horizontal axis integrated molding system, characterized in that: The device includes a wire feeding device, a straightening device, a punching device, and a cutting device installed sequentially, from upstream to downstream of the process. The feeding side of the downstream device is connected to the discharge side of the preceding device. The wire feeding device includes a wire feeding roller with steel wire wound around its exterior. The straightening device includes multiple sets of extrusion guide rollers, which are used to extrude steel wire. A punching device is installed on the discharge side of the straightening device. The punching device includes two cutters that, when pressed down, can flatten the steel wire radially and punch holes. The cutting device is used to shape and cut the perforated steel wire. A wire guide device is installed between the wire feeding device and the straightening device. The wire guide device includes a horizontal plate and a vertical plate, which are connected end to end and fixed together. The horizontal plate and the vertical plate are perpendicular to each other. Multiple wire guide wheels are installed in the horizontal plate and the vertical plate respectively. The multiple wire guide wheels in the horizontal plate and the vertical plate are staggered. Each wire guide wheel has a groove on its outer circumference. The horizontal positions of the grooves of each wire guide wheel are corresponding, which can guide the same steel wire to pass through sequentially. The straightening device includes a back plate installed vertically. Multiple sets of extrusion guide rollers are installed in the front end face of the back plate. Each set includes two extrusion guide rollers. The outer circumferential surface of each extrusion guide roller is provided with a groove. The outer circumferences of the two extrusion guide rollers in the same set are arranged opposite each other. The steel wire is extruded through the grooves between the two extrusion guide rollers. A fixed plate is installed at the axial position of the upper extrusion guide roller in each set. The fixed plate is threaded to the end of a lead screw in the radial direction. A handwheel is installed through the back plate at the upper end of the lead screw. The stamping device includes a base, on which a hydraulic cylinder is suspended. A lifting plate is installed at the end of the piston rod of the hydraulic cylinder. A locking block is installed in the middle of the base and on the bottom surface of the lifting plate. The two locking blocks have grooves made in their opposite end faces along the direction of wire conduction. When the two locking blocks are in contact with each other, they can clamp and limit the wire. A stamping seat is installed at a symmetrical position on both sides of the locking block at the upper end of the base. The cutting head is installed in the bottom surface of the lifting plate above the stamping seat. The stamping seat is located at the orthographic projection position of the cutting head in the vertical direction on the same side. The cutting device includes a base, on which a hydraulic cylinder is suspended. A stamping plate is installed at the end of the piston rod of the hydraulic cylinder. An upper stamping block is installed at the bottom of the stamping plate, and lower stamping blocks are symmetrically installed on both sides of the stamping plate. When the stamping plate is pressed down, the upper stamping block and the lower stamping blocks on both sides come into close contact to form a shearing force to cut the steel wire. The bottom sides of the upper punch block are recessed inward, and a gap is formed between the recessed position and the lower punch block on the same side. After the upper punch block comes into contact with the steel wire, the middle part of the upper punch block presses down the steel wire, and the two ends of the steel wire swing upward in the recess to form the shape. The bottom sides of the upper stamping block are recessed inward to form a trapezoidal structure that is wider at the bottom and narrower at the top, meaning that the width of the bottom surface is greater than the width of the recessed area above the bottom surface.

2. The molding method using the integrated molding system according to claim 1, characterized in that: Includes the following steps: Step 1: The feed roller rotates circumferentially to feed the wire outwards; Step 2: The steel wire is guided from the output side of the wire feeding roller into the wire guide device, and the axial position of the steel wire is adjusted under the action of the wire guide wheel to correspond with the wire inlet position of the straightening device. Step 3: The steel wire passes through multiple sets of extrusion guide rollers in sequence until the bent steel wire is in an axially straightened state; Step 4: The end of the steel wire enters the stamping device and passes through the position between the clamping blocks. At this time, the lifting plate is pressed down under the action of the hydraulic cylinder. The clamping blocks set in the base and the lifting plate are used to clamp and limit the steel wire. At the same time, the cutter head and the stamping seat cooperate to complete the punching and flattening. Step 5: The portion between the flattened positions of the steel wire is conveyed to the two lower punching blocks of the cutting device. At this time, the punching plate moves down under the action of the hydraulic cylinder, driving the upper punching block to press down between the two flattened positions to form a shape similar to "[". The shearing force formed by the upper and lower punching blocks cuts off the end of the finished product connected to the steel wire.

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