Bending device for metal handrail machining

Abstract

The invention discloses a bending device for metal handrail processing, which comprises a mounting box and a bending mechanism, and the bending mechanism is mounted in the material incoming direction of the mounting box; the bending mechanism comprises a rotating disc, a mounting cylinder, a contraction assembly, a first one-way transmission assembly and a power assembly. The power assembly is used for driving the mounting cylinder and the rotating disc to rotate synchronously, a bending rod and a center rod are mounted on the rotating disc, and a gap used for clamping and driving materials to rotate and bend is reserved between the bending rod and the center rod; the contraction assembly is used for spirally rotating to drive the supporting rod to contract towards the interior of the mounting rod, so that the bent materials fall off downwards from the supporting rod to complete automatic discharging; the first one-way transmission assembly is used for intermittently driving the center rod to rotate so as to complete repeated discharging. According to the automatic bending and discharging device, the bending mechanism is used for conducting automatic bending and automatic discharging operation on supplied materials, multiple times of repeated and automatic bending and discharging operation on one or more materials is completed, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of bending, in particular to a bending device for processing metal railings. Background Art

[0002] As a common architectural and design element, metal railings are not only practical but also have high aesthetic value. As a device used for metal pipe processing, bending devices can bend metal pipes into the required shape and angle. The working principle of the bending device is to bend the metal pipe by applying force. When the applied force exceeds the bending strength of the metal material, the material will undergo plastic deformation to form a bent shape.

[0003] In the prior art, metal railings often need to be manually unloaded after bending, which results in low work efficiency. In order to solve this technical problem, a bending device for metal railing processing is now proposed. Summary of the invention

[0004] The present invention provides a bending device for metal railing processing that effectively improves the degree of automation and work efficiency, and can solve at least one of the above-mentioned technical problems.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A bending device for metal railing processing, comprising an installation box and a bending mechanism, wherein the bending mechanism is installed in the material incoming direction of the installation box;

[0006] The bending mechanism includes a rotating disk, a mounting cylinder, a contraction assembly, a first one-way transmission assembly and a power assembly;

[0007] The rotating disk is vertically attached to the outer wall of the installation box, the installation cylinder is coaxially fixedly connected to the rotating disk and extends into the interior of the installation box, the power assembly is arranged inside the installation box, and is used to drive the installation cylinder and the rotating disk to rotate synchronously, a bending rod and a center rod are installed on the rotating disk, and a gap is left between the bending rod and the center rod for clamping and driving the material to rotate and bend, the center rod passes through the rotating disk in the center and extends into the installation cylinder, the center rod includes a support rod and a mounting rod coaxially elastically connected, the support rod extends outward from the rotating disk and entangles with the material;

[0008] The retracting assembly is connected between the support rod and the installation box, and is used for spirally rotating to drive the support rod to retract toward the inside of the installation rod, so that the bent material falls off from the support rod to complete automatic unloading;

[0009] The first one-way transmission assembly is connected between the mounting rod and the mounting cylinder, and is used for intermittently driving the central rod to rotate to complete repeated unloading.

[0010] Furthermore, the tail end of the support rod penetrates into the interior of the mounting rod and is connected to the mounting rod via a third elastic member. The head end of the support rod is assembled by a cone and a cylinder in sequence, and the large end diameter of the cone is equal to the diameter of the cylinder.

[0011] Furthermore, the retraction assembly includes a guide cylinder and a transmission column, the guide cylinder is fixed inside the mounting box and is sleeved on the outside of the support rod, and spiral sections are symmetrically distributed on both sides of the inner wall of the guide cylinder. The transmission column has two transmission columns, which are symmetrically fixed on both sides of the support rod. The transmission column is rotatably matched with the spiral section, and the support rod has a movement stroke that can be elastically retracted into the mounting rod or reset and popped out by rotating along the spiral section.

[0012] Further, the first one-way transmission component includes a one-way transmission member, a resistance rod and a mating protrusion. The one-way transmission member is installed on the inner wall of the mounting tube, and includes an outer ring and an inner ring distributed in concentric rings. The outer ring is attached to the inner wall of the mounting tube, the resistance rod is installed on the inner wall of the inner ring, the mating protrusion is fixed on the outside of the mounting rod, and the resistance rod has a motion stroke of rotating to resist the mating protrusion and drive the center rod to rotate synchronously.

[0013] Furthermore, a pawl is installed on the inner wall of the outer ring, and a plurality of external meshing ratchet teeth are evenly distributed on the outer wall of the inner ring. The pawl has an operating stroke of rotating to abut against the external meshing ratchet teeth and drive the inner ring to rotate unidirectionally.

[0014] Furthermore, it also includes a length-fixing mechanism, which is installed on the installation box and is used to adjust the bending length of the material, and the bending mechanism and the length-fixing mechanism are distributed on the installation box in sequence according to the incoming direction of the material;

[0015] The length-fixing mechanism includes an operating station, an installation shaft and a limit baffle. The operating station is used to press against the material to determine the length to be bent. The installation shaft is rotatably installed in a mounting groove opened in the installation box. A prism structure is coaxially fixed to the outside of the installation shaft. There are multiple limit baffles, which are slidably installed on each edge surface of the prism structure. The installation shaft has a movement range of rotating and allowing a certain limit baffle to be in the operating station.

[0016] Furthermore, each edge surface of the prism structure is provided with a slide groove, and the slide groove is distributed along the length direction of the installation axis. The limit baffle is slidably matched with the slide groove, and a positioning piece is installed on the limit baffle. The positioning piece can be adjusted in tightness to contact the prism structure to position and lock the limit baffle.

[0017] Furthermore, it also includes a second one-way transmission assembly, which is connected between the length-fixing mechanism and the mounting cylinder and is used to drive the length-fixing mechanism to rotate after each bending of the material;

[0018] The second one-way transmission assembly includes a first mounting ring and a one-way bevel gear. The first mounting ring is fixedly sleeved on the outside of the mounting tube, and a conical tooth segment is provided on the first mounting ring. The one-way bevel gear is coaxially fixed on one end of the mounting shaft extending toward the bending mechanism, and the one-way bevel gear is meshed and matched with the conical tooth segment. The first mounting ring has a motion stroke that rotates and drives the limit baffle on the mounting shaft to rotate to the working station.

[0019] Furthermore, it also includes a locking assembly, which is connected between the installation shaft and the installation cylinder and is used to lock the working station on the installation shaft;

[0020] The locking assembly includes an L-limiting rod, a locking groove and a second mounting ring. The locking grooves are provided in plurality and are evenly spaced along the circumference of the mounting axis extending to one end of the bending mechanism. The second mounting ring is fixedly sleeved on the outside of the mounting tube, and an arc-shaped member is fixed on the bottom. The L-limiting rod is slidably installed in the mounting box, and includes a vertical section and a horizontal section. The vertical section can be plugged and matched with the locking groove. A contact rod is fixed on the horizontal section. The second mounting ring has a movement stroke that rotates and drives the arc-shaped member to drive the contact rod to move synchronously so that the vertical section can be inserted into or out of the locking groove.

[0021] Furthermore, the contact rod is hinged to the L limit rod via a mounting pin, the outer sleeve of the mounting pin is provided with a torsion spring, and the L limit rod is provided with a limit pin for limiting the rotation direction of one side of the contact rod, the top of the contact rod is hemispherical and slidingly matched with the arc-shaped member, and the contact rod has a movement stroke driven by the arc-shaped member to perform unidirectional deflection or elastic reset.

[0022] The beneficial effects of the present invention are embodied in:

[0023] 1. In the present invention, a bending mechanism is used to automatically bend and unload incoming materials. Specifically, a bending rod and a center rod are arranged at intervals on a rotating disk to clamp the material and perform rotational bending. The spiral rotation of the contraction component drives the support rod on the center rod to contract toward the inside of the coaxially elastically connected mounting rod, so that the bent material falls downward from the support rod to achieve automatic unloading. At the same time, the center rod is intermittently driven to rotate by the first unidirectional transmission component to achieve repeated unloading. In this way, multiple, repeated, and automatic bending and unloading operations can be completed, greatly improving work efficiency.

[0024] 2. In the present invention, a fixed-length mechanism is used to automatically adjust the bending length of the incoming material. Under the cooperation of the second one-way transmission component and the locking component, the number of bending times of the material can be coordinated to achieve multiple and different fixed-length requirements for the same material, thereby ensuring the quality of bending and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings described herein are used to provide further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0027] Figure 2 It is a perspective view of the internal structure of the installation box of an embodiment of the present invention from a top view.

[0028] Figure 3 In the embodiment of the present invention Figure 2 A magnified schematic diagram of part A.

[0029] Figure 4 It is a schematic diagram of the guide tube structure of an embodiment of the present invention.

[0030] Figure 5 It is a schematic diagram of the installation tube structure of an embodiment of the present invention.

[0031] Figure 6 1 is a top view of a one-way transmission member according to an embodiment of the present invention.

[0032] Figure 7 It is a schematic diagram of the structure of the fixed length mechanism of an embodiment of the present invention.

[0033] Figure 8 It is a schematic cross-sectional diagram of the distribution of the slide grooves on the prismatic structure of an embodiment of the present invention.

[0034] Fig. 9 It is a schematic diagram of the assembly of the contact rod and the L limit rod according to an embodiment of the present invention.

[0035] The markings of the components in the accompanying drawings are:

[0036] 10. Installation box; 101. Support legs; 102. Installation slot;

[0037] 20. Bending mechanism; 201. Rotating plate; 202. Bending rod; 203. Center rod; 2031. Support rod; 2032. Mounting rod; 2033. Transmission column; 2034. Third elastic member; 2035. Matching protrusion; 204. Stopper; 205. Mounting cylinder; 206. First mounting ring; 207. Second mounting ring; 208. First gear; 209. Second gear; 210. Driving motor; 211. One-way bevel gear; 212. L stopper; 213. One-way transmission member; 2131. Outer ring; 2132. Inner ring; 2133. External meshing ratchet teeth; 2134. Ratchet; 214. Contact rod; 215. First elastic member; 216. Rejection rod; 217. Guide cylinder; 218. Helical segment; 219. Arc member; 220. Second elastic member;

[0038] 30. Fixed-length mechanism; 301. Mounting shaft; 302. Slide groove; 303. Limit baffle; 304. Positioning piece; 305. Lock groove. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0040] It should be noted that if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, "multiple" refers to more than two. In addition, in addition to metal railings, the "material" in this application also refers to metal pipes such as steel pipes that have deformable capabilities.

[0041] See also Figure 1-Figure 3 , an embodiment of the present invention provides a bending device for metal railing processing, comprising an installation box 10 and a bending mechanism 20, wherein the bending mechanism 20 is installed in the material incoming direction of the installation box 10;

[0042] The bending mechanism 20 includes a rotating disk 201, a mounting cylinder 205, a contraction assembly, a first one-way transmission assembly and a power assembly;

[0043] The rotating disk 201 is vertically attached to the outer wall of the installation box 10, the installation cylinder 205 is coaxially fixedly connected to the rotating disk 201 and extends into the interior of the installation box 10, the power assembly is arranged inside the installation box 10, and is used to drive the installation cylinder 205 and the rotating disk 201 to rotate synchronously, and a bending rod 202 and a center rod 203 are installed on the rotating disk 201, and a gap is left between the bending rod 202 and the center rod 203 for clamping and driving the material to rotate and bend, the center rod 203 passes through the rotating disk 201 in the center and extends into the installation cylinder 205, and the center rod 203 includes a coaxial elastically connected support rod 2031 and a mounting rod 2032, and the support rod 2031 extends outward from the rotating disk 201 and entangles with the material;

[0044] The retracting assembly is connected between the support rod 2031 and the installation box 10, and is used for spirally rotating to drive the support rod 2031 to retract toward the inside of the installation rod 2032, so that the bent material falls downward from the support rod 2031 to complete automatic unloading;

[0045] The first one-way transmission assembly is connected between the mounting rod 2032 and the mounting cylinder 205, and is used to intermittently drive the central rod 203 to rotate to complete repeated unloading.

[0046] In the present invention, the bending mechanism 20 is used to perform automatic bending and automatic unloading operations on incoming materials. Specifically, the bending rod 202 and the center rod 203 are arranged at intervals on the rotating disk 201 to clamp the material and perform rotational bending. The spiral rotation of the contraction component drives the support rod 2031 on the center rod 203 to contract toward the inside of the coaxially elastically connected mounting rod 2032, so that the bent material falls downward from the support rod 2031 to achieve automatic unloading. At the same time, the center rod 203 is intermittently driven to rotate by the first unidirectional transmission component to achieve repeated unloading. In this way, multiple, repeated, and automatic bending and unloading operations of one or more materials can be completed, thereby greatly improving work efficiency.

[0047] See also Figure 2-Figure 3 In this embodiment, the tail end of the support rod 2031 penetrates into the interior of the mounting rod 2032 and is connected to the mounting rod 2032 via the third elastic member 2034. The head end of the support rod 2031 is assembled by a cone and a cylinder in sequence, and the large end diameter of the cone is equal to the diameter of the cylinder.

[0048] In this embodiment, a sliding key is provided on the outer wall of the support rod 2031, and a sliding groove is provided on the inner wall of the mounting rod 2032. The sliding key is slidably matched with the sliding groove to ensure that the support rod 2031 can be smoothly extended and retracted inside the mounting rod 2032 along the sliding groove.

[0049] The third elastic member 2034 may be a coil spring, and the specific model and type are not particularly limited in this application;

[0050] The frustum can be a conical frustum or a faceted frustum, which is fixed on the top of the cylinder. During the unloading operation, the material can slide smoothly along the cylinder to the frustum due to gravity, and finally slide down smoothly.

[0051] See also Figure 2-Figure 4 In this embodiment, the retraction assembly includes a guide cylinder 217 and a transmission column 2033. The guide cylinder 217 is fixed inside the installation box 10 and is sleeved on the outside of the support rod 2031. The inner wall of the guide cylinder 217 is symmetrically distributed with spiral sections 218. The transmission column 2033 has two, which are symmetrically fixed on both sides of the support rod 2031. The transmission column 2033 is rotatably matched with the spiral section 218. The support rod 2031 has a movement stroke that can be rotated along the spiral section 218 to elastically retract into the installation rod 2032 or reset and pop out.

[0052] In this embodiment, a through hole is centrally provided in the mounting cylinder 205, and the guide cylinder 217 is installed on the mounting box 10 through a support rod, and the support rod can pass through the through hole and be arranged in the mounting cylinder 205; when the support rod 2031 rotates, the transmission column 2033 abuts against the spiral section 218, and under the spiral driving action of the spiral section 218, the support rod 2031 contracts toward the inside of the mounting rod 2032, thereby providing sliding power for the material that has completed the bending operation, so that it can smoothly slide off the support rod 2031 to achieve automatic unloading.

[0053] See also Figure 1-Figure 3 In this embodiment, the first one-way transmission component includes a one-way transmission member 213, a resistance rod 216 and a matching protrusion 2035. The one-way transmission member 213 is installed on the inner wall of the mounting tube 205, and includes an outer ring 2131 and an inner ring 2132 distributed in concentric rings. The outer ring 2131 is attached to the inner wall of the mounting tube 205, and the resistance rod 216 is installed on the inner wall of the inner ring 2132. The matching protrusion 2035 is fixed on the outside of the mounting rod 2032. The resistance rod 216 has a motion stroke of rotating to resist the matching protrusion 2035 and drive the center rod 203 to rotate synchronously.

[0054] In this embodiment, the installation cylinder 205 rotates at a certain angle under the drive of the power assembly. When the installation cylinder 205 completes a bending and restoring rotation process, it drives the one-way transmission member 213 to drive the resistance rod 216 to rotate in one direction. When the bending operation of a material is completed, the installation cylinder 205 is in the process of restoring rotation, and the resistance rod 216 abuts against the matching protrusion 2035, thereby driving the installation rod 2032 and the support rod 2031 to rotate. When the installation rod 2032 rotates to the maximum position, it stops rotating, but the resistance rod 216 will continue to reset with the installation cylinder 205, so that the resistance rod 216 will deflect and slide over the matching protrusion 2035. At the same time, the installation rod 2032 returns to its initial state under the action of elasticity, completing automatic unloading. Repeating the above steps can achieve repeated unloading operations each time.

[0055] See also Figure 3 and Figure 6 In this embodiment, a pawl 2134 is installed on the inner wall of the outer ring 2131, and a plurality of external meshing ratchet teeth 2133 are evenly distributed on the outer wall of the inner ring 2132. The pawl 2134 has an operating stroke of rotating against the external meshing ratchet teeth 2133 and driving the inner ring 2132 to rotate unidirectionally.

[0056] In this embodiment, a rotating shaft is provided on the abutting rod 216, the rotating shaft is hinged to the inner wall of the inner ring 2132, and a torsion spring is sleeved on the outer portion of the rotating shaft;

[0057] Since when the bending angle is 90°, the rotation angle of the bending rod 202 is greater than 90°, when the mounting tube 205 starts to rotate, the pawl 2134 is in the middle position of the two external meshing ratchet teeth 2133, and when it is close to one of the external meshing ratchet teeth 2133, it abuts against the external meshing ratchet tooth 2133, thereby driving the inner ring 2132 to rotate, and when the mounting tube resumes rotation, it returns to its initial position and is between the two external meshing ratchet teeth 2133. In this way, the rotation angle of the support rod 2031 is the same as the rotation angle of the bending rod 202, which is also greater than 90°, while the rotation angle of the inner ring 2132 is equal to 90°.

[0058] See also Figure 1-Figure 2 In this embodiment, the bending mechanism 20 further includes a limiting member 204, which is fixed on the outer wall of the installation box 10 and close to the incoming direction of the material, and is used to clamp and limit the material.

[0059] See also Figure 2 and Figure 5In this embodiment, the power assembly includes a first gear 208, a second gear 209 and a driving motor 210. The first gear 208 is fixedly sleeved on the installation tube 205. The driving motor 210 is arranged in the installation box 10. The second gear 209 is fixedly sleeved on the output shaft of the driving motor 210. The first gear 208 and the second gear 209 are meshed with each other. The driving motor 210 works and drives the second gear 209 to rotate, thereby driving the first gear 208 and the installation tube 205 to rotate synchronously.

[0060] See also Figure 1 and Figure 7 In this embodiment, it also includes a length-fixing mechanism 30, which is installed on the installation box 10 and is used to adjust the bending length of the material. The bending mechanism 20 and the length-fixing mechanism 30 are distributed on the installation box 10 in sequence according to the incoming direction of the material;

[0061] The length-fixing mechanism 30 includes an operating station, an installation shaft 301 and a limit baffle 303. The operating station is used to press against the material to determine the length to be bent. The installation shaft 301 is rotatably installed in the installation slot 102 opened in the installation box 10. A prismatic structure is coaxially fixed to the outside of the installation shaft 301. There are multiple limit baffles 303, which are slidably installed on each edge surface of the prismatic structure. The installation shaft 301 has a movement range of rotating and allowing a certain limit baffle 303 to be in the operating station.

[0062] In this embodiment, each time the mounting shaft 301 rotates, the position of the prism structure changes, so that the material can come into contact with the limit baffle 303 at the working station, thereby achieving multiple and different bending lengths of the same material.

[0063] See also Figure 7-Figure 8 In the present embodiment, each edge surface of the prism structure is provided with a slide groove 302, and the slide groove 302 is distributed along the length direction of the installation axis 301. The limit baffle 303 is slidably matched with the slide groove 302, and a positioning member 304 is installed on the limit baffle 303. The positioning member 304 can be adjusted in tightness to contact the prism structure to position and lock the limit baffle 303.

[0064] In this embodiment, the positioning member 304 is a locking bolt or other locking device, which is not particularly limited here;

[0065] Each edge of the prism structure may be provided with a scale along the length direction so as to visually observe the fixed length;

[0066] The number of the limit baffles 303 is consistent with the number of the external meshing ratchet teeth 2133, for example, four.

[0067] See also Figure 2 , Figure 3 , Figure 5 and Figure 7 In this embodiment, it further includes a second one-way transmission component, which is connected between the length-fixing mechanism 30 and the mounting cylinder 205 and is used to drive the length-fixing mechanism 30 to rotate after each bending of the material;

[0068] The second one-way transmission component includes a first mounting ring 206 and a one-way bevel gear 211. The first mounting ring 206 is fixedly sleeved on the outside of the mounting tube 205, and a conical tooth segment is arranged on the first mounting ring 206. The one-way bevel gear 211 is coaxially fixed to one end of the mounting shaft 301 extending toward the bending mechanism 20, and the one-way bevel gear 211 is meshed and matched with the conical tooth segment. The first mounting ring 206 has a motion stroke that rotates and drives the limit baffle 303 on the mounting shaft 301 to rotate to the working station.

[0069] In this embodiment, when the conical tooth segment and the one-way bevel gear 211 are meshed each time, the angle at which the one-way bevel gear 211 is driven to rotate is equal to the quotient of 360° and the number of the limit baffles 303. Specifically, when the mounting cylinder 205 is bent and rotated, the conical tooth segment is meshed with the one-way bevel gear 211. At this time, the one-way bevel gear 211 does not drive the mounting shaft 301 to rotate. When the mounting cylinder 205 resumes rotation, the conical tooth segment continues to mesh with the one-way bevel gear 211. At this time, the one-way bevel gear 211 drives the mounting shaft 301 to rotate, so that the next limit baffle 303 is transferred to the working station to press against the material.

[0070] See also Figure 2 , Figure 3 , Figure 5 and Figure 7 In this embodiment, a locking assembly is further included, wherein the locking assembly is connected between the installation shaft 301 and the installation cylinder 205 and is used to lock the working station on the installation shaft 301;

[0071] The locking assembly includes an L-limiting rod 212, a locking groove 305 and a second mounting ring 207. The locking groove 305 has a plurality of portions, which are evenly spaced along the circumference of the mounting axis 301 and extend to one end of the bending mechanism 20. The second mounting ring 207 is fixedly sleeved on the outside of the mounting tube 205, and an arc-shaped member 219 is fixed on the bottom. The L-limiting rod 212 is slidably installed in the mounting box 10, and includes a vertical section and a horizontal section. The vertical section can be plugged and matched with the locking groove 305. A contact rod 214 is fixed on the horizontal section. The second mounting ring 207 has a movement range that can rotate and drive the arc-shaped member 219 to drive the contact rod 214 to move synchronously so that the vertical section can be inserted into or out of the locking groove 305.

[0072] In this embodiment, a second elastic member 220 is sleeved on the outside of the vertical section of the L-limiting rod 212, one end of the second elastic member 220 is connected to the L-limiting rod 212, and the other end is connected to the installation box 10;

[0073] When the installation cylinder 205 resumes rotation, the arc-shaped member 219 passes through the contact rod 214, and the contact rod 214 drives the L limit rod 212 to move, so that the L limit rod 212 is removed from the lock groove 305, thereby releasing the lock on the installation shaft 301, and the one-way bevel gear 211 can drive the installation shaft 301 to rotate synchronously. When the material is fed, the installation shaft 301 is in a locked state and will not rotate, thereby ensuring the stability of the fixed length.

[0074] See also Figure 3 , Figure 5 and Fig. 9 In this embodiment, the contact rod 214 is hinged to the L limit rod 212 via a mounting pin, the outer sleeve of the mounting pin is provided with a torsion spring, and the L limit rod 212 is provided with a limit pin for limiting the rotation direction of one side of the contact rod 214. The top of the contact rod 214 is hemispherical and slidingly matched with the arc member 219. The contact rod 214 has a movement stroke driven by the arc member 219 to perform unidirectional deflection or elastic reset.

[0075] In this embodiment, when the mounting tube 205 is bent and rotated, the arc-shaped member 219 passes through the contact rod 214 from left to right. At this time, the contact rod 214 is deflected, and the arc-shaped member 219 cannot drive the L limit rod 212 to move out of the locking groove 305. After completing one bending, the arc-shaped member 219 leaves the contact rod 214, and the contact rod 214 automatically returns to its initial state under the action of elasticity; when the mounting tube 205 resumes rotation, the arc-shaped member 219 passes through the contact rod 214 again. At this time, the contact rod 214 does not rotate, so that the position of the L limit rod 212 changes under the drive of the arc-shaped member 219, so that the L limit rod 212 moves out of the locking groove 305, thereby releasing the lock of the mounting shaft 301.

[0076] See also Figure 1 In this embodiment, the bottom of the installation box 10 is equipped with supporting legs 101 for collecting the bent materials after unloading. It is used to collect the bent materials to avoid accidental risks such as casualties to personnel during unloading.

[0077] The working principle of this device is:

[0078] When in use, the material is first placed in the limiting member 204, and then passes through the bending rod 202 and the center rod 203, with the end portion contacting the fixed length mechanism 30, and the driving motor 210 is energized to drive the rotating disk 201 to rotate, and the rotating disk 201 drives the bending rod 202 to perform the first bending. When bending, the material is located on the cylinder of the support rod 2023. After the first bending of the material is completed, when the mounting cylinder 205 is bent and rotated, the conical tooth segment meshes with the one-way bevel gear 211 The one-way bevel gear 211 is engaged, at this time, the one-way bevel gear 211 does not drive the installation shaft 301 to rotate. When the installation cylinder 205 resumes rotation, the conical tooth segment continues to mesh with the one-way bevel gear 211. At this time, the one-way bevel gear 211 drives the installation shaft 301 to rotate, so that the next limit baffle 303 is transferred to the working station to block the moving track of the material, so that the fixed length mechanism 30 is in the second position. Under the action of the power component, the rotating disk 201 and the bending rod 202 are driven to return to the initial position. The fixed length mechanism 30 is in the second position, and the material is continuously driven toward the fixed length mechanism 30 until it contacts the fixed length mechanism 30 in the second position. The fixed length mechanism 30 limits the material for the second time, and the above operation is repeated so that the fixed length mechanism 30 can meet the bending needs and realize automatic fixed length bending. After the last bending is completed, the installation cylinder 205 drives the one-way transmission member 213 to drive the contact rod 216 to rotate in one direction during the process of restoring rotation after completing one bending. When a piece of material is bent, the installation cylinder 205 is in the During the recovery rotation process, the resistance rod 216 resists against the mating protrusion 2035, thereby driving the installation rod 2032 and the support rod 2031 to rotate. When the installation rod 2032 rotates to the maximum position, the installation rod 2032 stops rotating, but the resistance rod 216 continues to reset with the installation tube 205. In this way, the resistance rod 216 will deflect and slide over the mating protrusion 2035. At the same time, the installation rod 2032 returns to its initial state under the action of elasticity, completing automatic unloading.

[0079] In summary, in the present invention, the bending mechanism is used to automatically bend and unload the incoming materials. The bending rod and the center rod are arranged at intervals on the rotating disk to clamp the materials and perform rotational bending. Then, the spiral rotation of the contraction component drives the support rod on the center rod to contract inside the coaxially elastically connected mounting rod, so that the bent materials fall downward from the support rod to achieve automatic unloading. At the same time, the first unidirectional transmission component is used to intermittently drive the center rod to rotate to achieve repeated unloading. Multiple, repeated, and automatic bending and unloading operations of one or more materials can be completed, greatly improving work efficiency.

[0080] At the same time, the fixed-length mechanism is used to automatically adjust the bending length of the incoming material. Under the cooperation of the second one-way transmission component and the locking component, it can match the number of bending times of the material to achieve multiple and different fixed-length requirements for the same material, thereby ensuring the quality of bending and improving work efficiency.

[0081] It should be understood that the examples and implementation modes described herein are for illustrative purposes only and are not intended to limit the present invention. Those skilled in the art may make various modifications or changes based on the examples and implementation modes. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A bending device for metal railing processing, characterized in that: It comprises an installation box (10) and a bending mechanism (20), wherein the bending mechanism (20) is installed in the material incoming direction of the installation box (10); The bending mechanism (20) comprises a rotating disk (201), a mounting cylinder (205), a contraction assembly, a first one-way transmission assembly and a power assembly; The rotating disk (201) is vertically attached to the outer wall of the installation box (10); the installation cylinder (205) is coaxially fixedly connected to the rotating disk (201) and extends into the interior of the installation box (10); the power assembly is arranged inside the installation box (10) and is used to drive the installation cylinder (205) and the rotating disk (201) to rotate synchronously; a bending rod (202) and a center rod (203) are installed on the rotating disk (201); a gap is left between the bending rod (202) and the center rod (203) for clamping and driving the material to rotate and bend; the center rod (203) passes through the rotating disk (201) in the center and extends into the installation cylinder (205); the center rod (203) includes a support rod (2031) and a mounting rod (2032) coaxially elastically connected; the support rod (2031) extends outward from the rotating disk (201) and entangles with the material; The retracting assembly is connected between the support rod (2031) and the installation box (10), and is used for spirally rotating to drive the support rod (2031) to retract toward the inside of the installation rod (2032), so that the bent material falls downward from the support rod (2031) to complete automatic unloading; The first one-way transmission assembly is connected between the mounting rod (2032) and the mounting cylinder (205), and is used to intermittently drive the central rod (203) to rotate to complete repeated unloading.

2. The bending device for metal railing processing according to claim 1, characterized in that: The rear end of the support rod (2031) penetrates into the interior of the mounting rod (2032) and is connected to the mounting rod (2032) via a third elastic member (2034); the front end of the support rod (2031) is composed of a cone and a cylinder assembled in sequence, and the large end diameter of the cone is equal to the diameter of the cylinder.

3. The bending device for metal railing processing according to claim 1, characterized in that: The retracting assembly comprises a guide cylinder (217) and a transmission column (2033); the guide cylinder (217) is fixed inside the installation box (10) and is sleeved on the outside of the support rod (2031); spiral sections (218) are symmetrically distributed on both sides of the inner wall of the guide cylinder (217); the transmission column (2033) has two spiral sections (218) symmetrically fixed on both sides of the support rod (2031); the transmission column (2033) and the spiral sections (218) are rotatably matched; the support rod (2031) has a movement stroke that can be rotated along the spiral sections (218) to elastically retract into the installation rod (2032) or reset and pop out.

4. The bending device for metal railing processing according to claim 1, characterized in that: The first one-way transmission component comprises a one-way transmission member (213), a resistance rod (216) and a matching protrusion (2035); the one-way transmission member (213) is mounted on the inner wall of the mounting tube (205), and comprises an outer ring (2131) and an inner ring (2132) which are arranged in a concentric ring shape; the outer ring (2131) is fitted to the inner wall of the mounting tube (205); the resistance rod (216) is mounted on the inner wall of the inner ring (2132); the matching protrusion (2035) is fixed to the outside of the mounting rod (2032); the resistance rod (216) has a motion stroke for rotating to resist the matching protrusion (2035) and drive the center rod (203) to rotate synchronously.

5. The bending device for metal railing processing according to claim 4, characterized in that: A pawl (2134) is installed on the inner wall of the outer ring (2131), and a plurality of external meshing ratchet teeth (2133) are evenly spaced on the outer wall of the inner ring (2132). The pawl (2134) has an operating stroke of rotating against the external meshing ratchet teeth (2133) and driving the inner ring (2132) to rotate in one direction.

6. The bending device for metal railing processing according to claim 1, characterized in that: It also includes a length fixing mechanism (30), which is installed on the installation box (10) and is used to adjust the bending length of the material, and the bending mechanism (20) and the length fixing mechanism (30) are distributed on the installation box (10) in sequence according to the incoming direction of the material; The length-fixing mechanism (30) comprises an operating station, an installation shaft (301) and a limit baffle (303); the operating station is used to press against the material to determine the length to be bent; the installation shaft (301) is rotatably installed in an installation slot (102) provided in the installation box (10); a prism structure is coaxially fixed to the outside of the installation shaft (301); a plurality of limit baffles (303) are slidably installed on each edge surface of the prism structure; the installation shaft (301) has a movement range of rotating and allowing a certain limit baffle (303) to be in the operating station.

7. The bending device for metal railing processing according to claim 6, characterized in that: A slide groove (302) is provided on each edge surface of the prism structure, and the slide groove (302) is distributed along the length direction of the installation axis (301). The limit baffle (303) is slidably matched with the slide groove (302), and a positioning piece (304) is installed on the limit baffle (303), and the positioning piece (304) can be adjusted in tightness to contact the prism structure to position and lock the limit baffle (303).

8. The bending device for metal railing processing according to claim 6, characterized in that: It also includes a second one-way transmission component, which is connected between the length-fixing mechanism (30) and the mounting cylinder (205) and is used to drive the length-fixing mechanism (30) to rotate after each bending of the material; The second one-way transmission component comprises a first mounting ring (206) and a one-way bevel gear (211); the first mounting ring (206) is fixedly sleeved on the outside of the mounting tube (205), and a conical tooth segment is arranged on the first mounting ring (206); the one-way bevel gear (211) is coaxially fixed to one end of the mounting shaft (301) extending toward the bending mechanism (20), and the one-way bevel gear (211) is meshed and matched with the conical tooth segment; the first mounting ring (206) has a motion stroke that rotates and drives the limit baffle (303) on the mounting shaft (301) to rotate to the working station.

9. The bending device for metal railing processing according to claim 6, characterized in that: It also includes a locking assembly, which is connected between the installation shaft (301) and the installation cylinder (205) and is used to lock the working station on the installation shaft (301); The locking assembly comprises an L-limiting rod (212), a locking groove (305) and a second mounting ring (207). The locking groove (305) has a plurality of grooves which are evenly spaced along the circumference of the mounting shaft (301) and extend to one end of the bending mechanism (20). The second mounting ring (207) is fixedly sleeved on the outside of the mounting tube (205) and has an arc-shaped member (219) fixed on the bottom. The L-limiting rod (212) is slidably mounted in the mounting box (10) and comprises a vertical section and a horizontal section. The vertical section can be plugged and matched with the locking groove (305). A contact rod (214) is fixed on the horizontal section. The second mounting ring (207) has a movement stroke that can rotate and drive the arc-shaped member (219) to drive the contact rod (214) to move synchronously so that the vertical section can be inserted into or out of the locking groove (305).

10. The bending device for metal railing processing according to claim 9, characterized in that: The contact rod (214) is hinged to the L limit rod (212) via a mounting pin, the outer sleeve of the mounting pin is provided with a torsion spring, the L limit rod (212) is provided with a limit pin for limiting the rotation direction of one side of the contact rod (214), the top of the contact rod (214) is hemispherical and slidingly matched with the arc-shaped member (219), and the contact rod (214) has a movement stroke driven by the arc-shaped member (219) to perform unidirectional deflection or elastic reset.

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