Multi-layer welded steel mesh production equipment for ballastless track

Abstract

This invention discloses a production equipment for multi-layer welded steel mesh for ballastless track, belonging to the technical field of track construction auxiliary equipment. It includes a support assembly, a transverse steel bar feeding assembly, a longitudinal steel bar feeding assembly, and a welding assembly. The invention features a support assembly with a transverse and longitudinal steel bar feeding assembly positioned above it. These assemblies can supply steel bars in two directions, enabling the splicing of steel mesh sheets. The welding assembly welds and fixes the spliced ​​joints of the steel mesh sheets, thus achieving continuous production of the steel mesh sheets.

Description

Technical Field

[0001] This invention relates to the field of ballastless track construction technology, and in particular to production equipment for multi-layer welded steel mesh for ballastless tracks. Background Technology

[0002] Ballastless track refers to a track structure that uses a monolithic foundation of concrete, asphalt mixture, or similar materials instead of loose gravel ballast. Also known as ballastless track, it represents the world's most advanced track technology. Compared to ballasted track, ballastless track avoids ballast splashing, offers better smoothness, stability, service life, durability, and requires less maintenance.

[0003] Welded steel mesh generally refers to ribbed steel mesh. It is also known as welded steel mesh, welded steel wire mesh, welded steel wire mesh, welded steel wire mesh sheet, etc. It consists of longitudinal and transverse steel bars arranged at specific intervals and perpendicular to each other, with all intersections welded together.

[0004] Because ballastless tracks are integrally cast using materials such as concrete and asphalt mixtures, steel mesh is used during casting to enhance the structural strength of the track. However, the traditional method of producing this welded steel mesh involves manual welding, which is inefficient and hinders rapid, mass production. While mechanical resistance welding of the steel mesh involves straightening the transverse and longitudinal bars, the lack of straightening detection components means that some incompletely straightened bars may be bent during welding, leading to incomplete welds. These incomplete welds can then detach during subsequent use, affecting the overall welding quality of the steel mesh.

[0005] Therefore, it is necessary to invent a production process and equipment for multi-layer welded steel wire mesh for ballastless tracks to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a production process and equipment for multi-layer welded wire mesh for ballastless tracks, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a multi-layer steel welded mesh production equipment for ballastless tracks, comprising a support assembly, a transverse steel bar feeding assembly, a longitudinal steel bar feeding assembly, and a welding assembly;

[0008] The transverse rebar feeding assembly includes two symmetrically distributed mounting seats. Multiple equally spaced movable seats are movably connected to the top of the inner wall of each mounting seat via bearings. An adjusting rod is movably connected to the middle of the inner side of each movable seat via bearings. Two symmetrically distributed positioning rods are fixedly connected to the middle of the inner side of each movable seat. Multiple movable sleeves are sleeved on the outer side of each adjusting rod. Two symmetrically distributed positioning grooves are formed through the middle of each movable sleeve. The positioning rods are connected to the positioning grooves. A through groove is formed through the middle of each movable sleeve. An adjusting block is fixedly connected to the middle of the inner wall of the through groove. Two sets of symmetrically distributed adjusting grooves are provided on the outer side of each adjusting rod. A feeding roller is fixedly connected to the middle of the outer side of each movable sleeve.

[0009] The longitudinal rebar feeding assembly includes two symmetrically distributed feeding seats. Two symmetrically distributed supports are fixedly connected to the bottom of the outer side wall of the feeding seat. A support column is fixedly connected to the middle of the bottom end of the support. A guide cover is provided on the inner side of the feeding seat. A connecting sleeve is fixedly connected to both ends of the outer side wall of the guide cover. A discharge chute is opened through the middle of the bottom end of the guide cover. A magnetizing component is provided on the side wall of the guide cover. A set of magnetic sensors is provided on the side wall of the discharge chute near the transverse rebar feeding assembly. The number of magnetic sensors is the same as the number of feeding rollers and corresponds one-to-one.

[0010] Preferably, the support assembly includes a support frame, with support blocks fixedly connected to the four corners of the lower surface of the support frame, a base fixedly connected to the bottom of the support blocks, and two symmetrically distributed support plates fixedly connected to one end of the upper surface of the support frame. The support plates are configured with an inclined structure, and support rollers are provided on the side of the two support plates that are close to each other.

[0011] Preferably, the inner bottom end of the mounting base is fixedly connected to two symmetrically distributed fixed columns, and the adjusting rod is connected through the movable sleeve; the outer side of the adjusting rod is provided with two sets of symmetrically distributed adjusting grooves, the adjusting block is configured as a spherical structure, and the adjusting groove is configured as an arc-shaped structure.

[0012] Preferably, the outer side of the feeding roller has an arc-shaped groove in the middle, one end of the adjusting rod has a plurality of limiting grooves arranged in a ring array on its outer side, a positioning ring is fixedly connected to the outer side of the movable seat, one end of the adjusting rod is inserted into the positioning ring, an insert is fixedly connected to the top of the outer wall of the positioning ring, a limiting block is inserted into the inside of the insert, the bottom end of the limiting block is inserted into the limiting groove, the top end of the limiting block is movably connected to the top inner wall of the insert through a spring, a limiting protrusion is fixedly connected to the top of the outer wall of the limiting block, a strip groove is opened through the middle of the outer side of the insert, and the limiting protrusion is connected through the strip groove.

[0013] Preferably, a handwheel is fixedly connected to one end of the adjusting rod, a transmission sprocket is fixedly connected to the middle of the outer side of the movable seat, a drive motor is fixedly connected to the middle of the bottom end of the inner side wall of the mounting seat, a drive sprocket is fixedly connected to the output shaft of the drive motor, and the drive sprocket and the transmission sprocket are connected by a transmission chain.

[0014] Preferably, mounting brackets are fixedly connected to both ends of the upper surface of the mounting base. The mounting brackets are configured with a "∩" shape. Positioning grooves are opened through the middle of both sides of the mounting brackets. Positioning sliders are provided inside the positioning grooves. Extension grooves are provided in the middle of both sides of the positioning sliders. Extension brackets are fixedly connected to the middle of the inner side of the positioning sliders. Extension brackets are configured with a "∩" shape. Multiple compression springs with equal spacing are fixedly connected to the upper surface of the extension brackets. The top of the compression springs is fixedly connected to the inner wall of the top of the mounting bracket. A compression roller is provided at the bottom of the inner wall of the extension bracket.

[0015] Preferably, an auxiliary roller is provided at the middle of the outer side of the support column, and multiple connecting columns are fixedly connected to the side of the two feeding seats that are close to each other. The connecting columns are connected through the connecting sleeve. A transmission rod is movably connected to the middle of the inner side wall of the feeding seat through a bearing. Multiple feeding discs distributed at equal intervals are fixedly connected to the outer side wall of the transmission rod. Multiple feeding grooves distributed in a ring array are opened on the outer side of the feeding discs.

[0016] Preferably, a feeding groove is provided through the center of the top of the feeding hood, a feeding pipe is fixedly connected to the opening of the feeding groove, and a feeding hood is fixedly connected to the top of the feeding pipe. The feeding hood is configured as a trumpet-shaped structure.

[0017] Preferably, a motor base is fixedly connected to the middle of the outer side of the feeding seat, a feeding motor is fixedly connected to the middle of the inner side wall of the motor base, a drive wheel is fixedly connected to the output shaft of the feeding motor, a drive wheel is fixedly connected to one end of the transmission rod, the drive wheel and the drive wheel are connected by a transmission belt, a threaded sleeve is embedded in the middle of the top of the outer side wall of the feeding seat, a threaded rod is inserted into the inside of the threaded sleeve, a baffle is movably connected to one end of the threaded rod through a bearing, a circular groove is formed through the middle of the baffle, and the transmission rod is connected through the circular groove.

[0018] Preferably, the welding assembly includes a welding frame, with two symmetrically distributed slides fixedly connected to the bottom end of the welding frame. The slides are sleeved with a support frame. A locking bolt is inserted into a screw hole in the middle of the outer wall of each slide, with one end of the locking bolt abutting against the middle of the outer wall of the support frame. A fixing rod is fixedly connected to the top of the inner wall of the welding frame. Multiple equally spaced slides are sleeved on the outer side of the fixing rod. A positioning bolt is inserted into a screw hole in the middle of the outer wall of each slide, with one end of the positioning bolt abutting against the outer wall of the fixing rod. An upper fixed frame is fixedly connected to the bottom of the outer side wall of the welding frame. An upper square sleeve is slidably sleeved on the outer side of the upper fixed frame. An upper cylinder is provided between the upper square sleeve and the upper fixed frame. An upper welding part is fixedly connected to the middle of the bottom end of the upper square sleeve. A positioning seat is fixedly connected to the bottom of the inner side wall of the welding frame. Positioning rollers are provided at both ends of the inner side wall of the positioning seat. A lower fixed frame is provided corresponding to the front side of the upper fixed frame. A lower square sleeve is slidably sleeved on the outer side of the lower fixed frame. A lower cylinder is provided between the lower square sleeve and the lower fixed frame. A lower welding part is fixedly connected to the middle of the bottom end of the lower square sleeve.

[0019] The technical effects and advantages of this invention are as follows:

[0020] 1. This invention provides a support assembly with a transverse rebar feeding assembly and a longitudinal rebar feeding assembly above it. The transverse and longitudinal rebar feeding assemblies can respectively feed rebar in two directions, thereby enabling the splicing of rebar mesh. By providing a welding assembly, the welding assembly can weld and fix the spliced ​​joints of the rebar mesh, thereby enabling continuous production of rebar mesh.

[0021] 2. The present invention provides a transverse rebar feeding assembly, which includes multiple feeding rollers. These rollers work together to simultaneously feed multiple transverse rebars. The spacing between the multiple feeding rollers can be adjusted, thereby allowing for adjustment of the spacing between the multiple transverse rebars. This enables the adjustment of the transverse spacing of the rebar mesh according to the construction requirements and standards of ballastless track.

[0022] 3. This invention provides a longitudinal rebar feeding assembly, which includes multiple feeding discs. These discs work together to simultaneously feed multiple longitudinal rebars. Each feeding disc is driven by a feeding motor. By adjusting the rotation speed of the output shaft of the feeding motor, the rotation speed of the feeding discs can be adjusted, thereby allowing for adjustment of the spacing between multiple longitudinal rebars. This enables the longitudinal spacing of the rebar mesh to be adjusted according to the construction requirements and standards of ballastless track.

[0023] 4. This invention achieves the splicing of steel mesh by feeding transverse and longitudinal steel bars separately, and uses upper and lower welding parts to weld and reinforce the splicing points of the steel mesh, thereby enabling continuous and rapid production of steel mesh to meet the needs of ballastless track laying.

[0024] 5. This invention, through the magnetization treatment of longitudinal reinforcing bars, not only enables the longitudinal reinforcing bars to magnetically attract the transverse reinforcing bars, allowing both to be smoothly transferred to the welding position and thus improving welding accuracy, but also utilizes the magnetized longitudinal reinforcing bars to further magnetize the transverse reinforcing bars. By measuring the magnetic field strength of the transverse reinforcing bars, it determines whether the intersection points of the longitudinal and transverse reinforcing bars are connected. When a connection is not found (i.e., the transverse and / or longitudinal reinforcing bars are bent), the welding sequence at the intersection points is adjusted, and other normally connected transverse and longitudinal reinforcing bars are welded and tightened step by step. Finally, the bent transverse and / or longitudinal reinforcing bars are welded, preventing the bending of the transverse and / or longitudinal reinforcing bars from affecting other welding points, thereby improving welding accuracy and the welding quality of the reinforcing mesh. Attached Figure Description

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0026] Figure 2 This is a schematic diagram of the support component structure of the present invention.

[0027] Figure 3 This is a schematic diagram of the transverse steel bar feeding assembly of the present invention.

[0028] Figure 4 This is a schematic diagram of the mounting base structure of the present invention.

[0029] Figure 5 This is a schematic diagram of the extension frame structure of the present invention.

[0030] Figure 6 This is a schematic diagram of the movable seat structure of the present invention.

[0031] Figure 7 This is a schematic diagram of the feeding roller structure of the present invention.

[0032] Figure 8 This is a top-section schematic diagram of the feeding roller structure of the present invention.

[0033] Figure 9 This is a schematic diagram of the adjusting rod structure of the present invention.

[0034] Figure 10 This is a cross-sectional schematic diagram of the cannula structure of the present invention.

[0035] Figure 11 This is a schematic diagram of the positioning ring structure of the present invention.

[0036] Figure 12 This is a schematic diagram of the longitudinal steel bar feeding assembly of the present invention.

[0037] Figure 13 This is a schematic diagram of the internal structure of the longitudinal steel bar feeding assembly of the present invention.

[0038] Figure 14 This is a schematic diagram of the baffle structure of the present invention.

[0039] Figure 15 This is a schematic diagram of the feeder structure of the present invention.

[0040] Figure 16 This is a schematic diagram of the material guide cover structure of the present invention.

[0041] Figure 17 This is a side view of the material guide cover structure of the present invention.

[0042] Figure 18 This is a schematic diagram of the feeding tray structure of the present invention.

[0043] Figure 19 This is a schematic diagram of the welding assembly structure of the present invention.

[0044] Figure 20 This is a schematic diagram of the welding frame structure of the present invention.

[0045] Figure 21 This is a schematic diagram of the sliding sleeve structure of the present invention.

[0046] In the diagram: 1. Support assembly; 2. Horizontal rebar feeding assembly; 3. Longitudinal rebar feeding assembly; 4. Welding assembly; 101. Support frame; 102. Support block; 103. Base; 104. Support plate; 105. Support roller; 201. Mounting seat; 202. Fixed column; 203. Movable seat; 204. Adjusting rod; 205. Positioning rod; 206. Movable sleeve; 207. Positioning groove; 208. Through groove; 209. Adjusting block; 210. Adjusting groove; 211. Feeding element. 212. Roller; 213. Limiting groove; 214. Positioning ring; 215. Insert tube; 216. Limiting insert block; 217. Limiting protrusion; 218. Strip groove; 219. Handwheel; 220. Drive sprocket; 221. Drive sprocket; 222. Drive chain; 223. Mounting bracket; 224. Positioning slide; 225. Positioning slider; 226. Extension groove; 227. Extension bracket; 228. Pressure spring; 229. Pressure roller; 301. Feeding seat; 302. 303. Support column; 304. Auxiliary roller; 305. Connecting column; 306. Transmission rod; 307. Feeding tray; 308. Feeding groove; 309. Guide cover; 310. Connecting sleeve; 311. Discharge chute; 312. Feed chute; 313. Feeding pipe; 314. Feeding cover; 315. Motor base; 316. Feeding motor; 317. Drive wheel; 318. Transmission wheel; 319. Transmission belt; 320. Threaded sleeve; 321. Threaded rod; 322. 323. Baffle; 324. Circular groove; 325. Magnetized component; 326. Magnetic sensor; 401. Welding frame; 402. Slide block; 403. Locking bolt; 404. Fixing rod; 405. Sliding sleeve; 406. Positioning bolt; 407. Upper fixing frame; 408. Upper square sleeve; 409. Upper cylinder; 410. Upper welding part; 411. Lower fixing frame; 412. Lower square sleeve; 413. Positioning seat; 414. Positioning roller; 415. Lower cylinder; 416. Lower welding part. Detailed Implementation

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0048] First embodiment

[0049] The present invention provides Figures 1 to 21The multi-layer welded wire mesh production equipment for ballastless track shown includes a support assembly 1, a transverse steel bar feeding assembly 2, a longitudinal steel bar feeding assembly 3, and a welding assembly 4. The transverse steel bar feeding assembly 2 is provided at one upper end of the support assembly 1, the longitudinal steel bar feeding assembly 3 is provided at the middle upper part of the support assembly 1, and the welding assembly 4 is provided at the other upper end of the support assembly 1.

[0050] The support assembly 1 includes a support frame 101. Support blocks 102 are fixedly connected to the four corners of the lower surface of the support frame 101. A base 103 is fixedly connected to the bottom end of the support block 102. Two symmetrically distributed support plates 104 are fixedly connected to one end of the upper surface of the support frame 101. The support plates 104 are set with an inclined structure. A support roller 105 is provided on the side of the two support plates 104 that are close to each other. The support roller 105 is used to convey the welded steel mesh.

[0051] The transverse steel bar feeding assembly 2 includes two symmetrically distributed mounting seats 201. The bottom of the outer side wall of the two mounting seats 201 is fixedly connected to one end of the inner side wall of the support frame 101, and the bottom of the inner side of the mounting seat 201 is fixedly connected to two symmetrically distributed fixing columns 202.

[0052] Specifically, the top of the inner wall of the mounting base 201 is movably connected by bearings to multiple equally spaced movable seats 203. An adjusting rod 204 is movably connected to the middle of the inner side of each movable seat 203 via bearings. Two symmetrically distributed positioning rods 205 are fixedly connected to the middle of the inner side of each movable seat 203. Multiple movable sleeves 206 are sleeved on the outer side of the adjusting rod 204. Two symmetrically distributed positioning grooves 207 are formed through the middle of each movable sleeve 206, and the positioning rods 205 are connected to the positioning grooves 207. A through groove 208 is formed through the middle of each movable sleeve 206, and the adjusting rod 204 is connected to the movable sleeve 206. An adjusting block 209 is fixedly connected to the middle of the inner wall of the through groove 208. More specifically, the adjusting block 209 is a ball... The structure features an adjusting rod 204 with two symmetrically distributed adjusting grooves 210 on its outer side. These grooves are arc-shaped and wrap around the outer wall of the adjusting rod 204. When the adjusting rod 204 is rotated via the handwheel 218, the adjusting block 209 slides within the adjusting groove 210. The movable sleeve 206 remains stationary under the action of the positioning rod 205. The inner wall of the adjusting groove 210 presses against the adjusting block 209, causing the adjusting block 209 to drive the movable sleeve 206 to slide horizontally. Because there are two sets of adjusting grooves 210 arranged symmetrically and in opposite directions, the distance between adjacent movable sleeves 206 can be adjusted while ensuring that the movable sleeves 206 on the two adjusting grooves 210 can move closer or further apart. By adjusting the spacing of the movable sleeves 206, the spacing of multiple transverse reinforcing bars transmitted on the movable sleeves 206 can be adjusted, thereby enabling the welding of reinforcing meshes with different transverse spacings.

[0053] A feeding roller 211 is fixedly connected to the middle of the outer side of the movable sleeve 206. An arc-shaped groove is opened in the middle of the outer side of the feeding roller 211. A plurality of limiting grooves 212 arranged in a ring array are opened on the outer side of one end of the adjusting rod 204. A positioning ring 213 is fixedly connected to the middle of the outer side of the movable seat 203. One end of the adjusting rod 204 is inserted into the positioning ring 213. An insertion tube 214 is fixedly connected to the top of the outer wall of the positioning ring 213. A limiting block 215 is inserted into the inside of the insertion tube 214. The bottom end of the limiting block 215 is inserted into the limiting groove 212. The top end of the limiting block 215 is movably connected to the inner wall of the top end of the insertion tube 214 by a spring. A limiting protrusion 216 is fixedly connected to the top of the outer wall of the limiting block 215. Moreover, a strip groove 217 is opened through the middle of the outer side of the insertion tube 214. The limiting protrusion 216 is connected through the strip groove 217. The interplay of components such as the limiting block 215, spring, and limiting groove 212 allows the adjusting rod 204 and the movable seat 203 to connect as one unit when the limiting block 215 is inserted into the limiting groove 212. The movable seat 203, during rotation, drives the adjusting rod 204 to rotate synchronously, which in turn drives the feeding roller 211 above it to rotate synchronously, thus transmitting the transverse reinforcing bars. When the limiting block 215 exits the limiting groove 212, the adjusting rod 204 separates from the movable seat. By rotating the adjusting rod 204 individually, the spacing of the multiple feeding rollers 211 on the adjusting rod 204 can be adjusted, thereby adjusting the spacing of the multiple transverse reinforcing bars on the multiple feeding rollers 211. This allows for the welding of reinforcing mesh products with different spacings of transverse reinforcing bars, meeting various application requirements.

[0054] A handwheel 218 is fixedly connected to one end of the adjusting rod 204. A transmission sprocket 219 is fixedly connected to the middle of the outer side of the movable seat 203. A drive motor 220 is fixedly connected to the middle of the bottom of the inner side wall of the mounting seat 201. A drive sprocket 221 is fixedly connected to the output shaft of the drive motor 220. The drive sprocket 221 and the transmission sprocket 219 are connected by a transmission chain 222. The drive motor 220 drives the drive sprocket 221 to rotate. The drive sprocket 221 drives the transmission sprocket 219 to rotate through the transmission chain 222. The transmission sprocket 219 drives the movable seat 203 to rotate. The movable seat 203 drives the positioning rod 205 to rotate. The positioning rod 205 drives the movable sleeve 206 to rotate. The movable sleeve 206 drives the feeding roller 211 to rotate. The feeding roller 211 can drive the transverse steel bar to move horizontally, thereby realizing the feeding of the transverse steel bar.

[0055] Meanwhile, mounting brackets 223 are fixedly connected to both ends of the upper surface of the mounting base 201. The mounting brackets 223 are configured with a "∩" shaped structure. Positioning grooves 224 are provided through the middle of both sides of the mounting brackets 223. Positioning sliders 225 are provided inside the positioning grooves 224. Extension grooves 226 are provided in the middle of both sides of the positioning sliders 225. Extension brackets 227 are fixedly connected to the middle of the inner side of the positioning sliders 225. The extension brackets 227 are configured with a "∩" shaped structure. Multiple compression springs 228 are fixedly connected to the upper surface at equal intervals. The top of the compression springs 228 is fixedly connected to the inner wall of the top of the mounting frame 223. A compression roller 229 is provided at the bottom of the inner side wall of the extension frame 227. The compression springs 228 act on the extension frame 227, causing the extension frame 227 to drive the compression roller 229 to move downward. The compression roller 229 can press the transverse steel bar above the feeding roller 211, thereby ensuring that the feeding roller 211 can feed the transverse steel bar.

[0056] The longitudinal rebar feeding assembly 3 includes two symmetrically distributed feeding seats 301. Two symmetrically distributed supports 302 are fixedly connected to the bottom of the outer side wall of each feeding seat 301. A support column 303 is fixedly connected to the middle of the bottom end of each support 302. Both ends of the support column 303 are fixedly connected to the inner side wall of the support frame 101. An auxiliary roller 304 is provided at the middle of the outer side of the support column 303. Multiple connecting columns 305 are fixedly connected to the side of the two feeding seats 301 that are close to each other. A transmission rod 306 is movably connected to the middle of the inner side wall of each feeding seat 301 via a bearing. Multiple equally spaced feeding discs 307 are fixedly connected to the outer side wall of the transmission rod 306. Multiple feeding grooves 308 arranged in a circular array are provided on the outer side of each feeding disc 307. The feeding grooves 308 are used to convey longitudinal rebar.

[0057] Specifically, a guide cover 309 is provided on the inner side of the feeding seat 301. A connecting sleeve 310 is fixedly connected to both ends of the outer side wall of the guide cover 309. A connecting column 305 is connected through the connecting sleeve 310. A discharge groove 311 is opened through the middle of the bottom end of the guide cover 309. A feed groove 312 is opened through the middle of the top end of the guide cover 309. A feed pipe 313 is fixedly connected to the opening of the feed groove 312. A feed cover 314 is fixedly connected to the top end of the feed pipe 313. The feed cover 314 is configured as a trumpet-shaped structure. A motor base 315 is fixedly connected to the middle of the outer side of the feeding seat 301. A feeding motor 316 is fixedly connected to the middle of the inner side wall of the motor base 315. A drive wheel 317 is fixedly connected to the output shaft of the feeding motor 316. A drive wheel 318 is fixedly connected to one end of the transmission rod 306. The drive wheel 317 and the drive wheel 318 are connected by a transmission belt 319. The drive wheel 317 drives the drive wheel 318 to rotate through the transmission belt 319. The drive wheel 318 drives the transmission rod 306 to rotate. The transmission rod 306 drives the feeding disc 307 to rotate. By setting the gap between the feeding disc 307 and the guide cover 309, it can be ensured that only one longitudinal steel bar can be conveyed at a time along the axial direction of the transmission rod 306 in the corresponding groove 308 of the same row, so as to ensure normal welding of the steel mesh.

[0058] Multiple longitudinal steel bars are placed inside the feed hood 314. Under the action of gravity, the longitudinal steel bars slide into the feed pipe 313. When the feed groove 308 on the feed plate 307 rotates to the bottom of the feed pipe 313, a single longitudinal steel bar can fall into the feed groove 308. The feed plate 307 drives the longitudinal steel bar to move through the feed groove 308 until the longitudinal steel bar moves to the discharge chute 311. At this time, the longitudinal steel bar falls above the transverse steel bar through the discharge chute 311. At this time, the transverse steel bar and the longitudinal steel bar are spliced ​​into a mesh structure, which prepares for the subsequent welding of the longitudinal steel bar and the transverse steel bar.

[0059] A threaded sleeve 320 is embedded in the center of the top of the outer wall of the feeding seat 301. A threaded rod 321 is inserted into the inside of the threaded sleeve 320. One end of the threaded rod 321 is movably connected to a baffle 322 via a bearing. By adjusting the position of the baffle 322 through the threaded rod 321, the baffle 322 can push the connecting sleeve 310 on the guide cover 309 to move along the connecting column 305, thereby adjusting the position of the guide cover 309 above the transmission rod 306. Ultimately, this adjusts the drop point of the longitudinal steel bars, ensuring that the longitudinal steel bars fall on the transverse steel bars, and then welds steel mesh of different specifications to meet the needs of different scenarios. A circular groove 323 is formed through the center of the baffle 322, and the transmission rod 306 is connected through the circular groove 323 to ensure that the baffle 322 does not affect the normal rotation of the transmission rod 306.

[0060] The welding assembly 4 includes a welding frame 401, which is configured as a "∩" shaped structure. Two symmetrically distributed slide blocks 402 are fixedly connected to the bottom end of the welding frame 401. The slide blocks 402 are sleeved and connected to the support frame 101. A locking bolt 403 is inserted into a screw hole in the middle of the outer wall of the slide block 402. One end of the locking bolt 403 is in contact with the middle of the outer wall of the support frame 101, thereby adjusting the position of the welding frame 401 in the support frame 101 to meet the welding requirements of different specifications of steel mesh.

[0061] Specifically, a fixing rod 404 is fixedly connected to the top of the inner wall of the welding frame 401. Multiple sliding sleeves 405 distributed at equal intervals are movably connected to the outer side of the fixing rod 404. A positioning bolt 406 is inserted into a screw hole in the middle of the outer wall of the sliding sleeve 405. One end of the positioning bolt 406 is in contact with the outer wall of the fixing rod 404. By adjusting the tightness of the positioning bolt 406, the position of the sliding sleeve 405 on the fixing rod 404 can be adjusted, thereby realizing the adjustment of the position of the steel mesh welding point, which is used for welding steel mesh of different specifications and models.

[0062] An upper fixed frame 407 is fixedly connected to the bottom of the outer side wall of the sliding sleeve 405. An upper square sleeve 408 is slidably sleeved on the outer side of the upper fixed frame 407. An upper cylinder 409 is provided between the upper square sleeve 408 and the upper fixed frame 407. An upper welding part 410 is fixedly connected to the middle of the bottom end of the upper square sleeve 408. By controlling the extension or retraction of the support rod of the upper cylinder 409, the upper square sleeve 408 can be driven to move up or down, thereby causing the upper square sleeve 408 to drive the upper welding part 410 to move up and down, so as to weld the transverse and longitudinal steel bars below it.

[0063] A positioning seat 413 is fixedly connected to the bottom of the inner wall of the welding frame 401. Positioning rollers 414 are provided at both ends of the inner wall of the positioning seat 413 for supporting and transporting the transverse and longitudinal steel bars that need to be welded.

[0064] A lower fixed frame 411 is provided corresponding to the upper fixed frame 407. A lower square sleeve 412 is slidably sleeved on the outer side of the lower fixed frame 411. A lower cylinder 415 is provided between the lower square sleeve 412 and the lower fixed frame 411. A lower welding part 416 is fixedly connected to the middle of the bottom end of the lower square sleeve 412. By controlling the extension or retraction of the support rod of the lower cylinder 415, the lower square sleeve 412 can be driven to move upward or downward, thereby causing the lower square sleeve 412 to drive the lower welding part 416 to move up and down, so as to weld the transverse and longitudinal steel bars above it. The lower fixed frame 407 is limited and slidably set in the lower sliding groove, thereby ensuring that the lower welding part 416 moves synchronously with the upper welding part 410 and remains corresponding, so as to ensure normal welding and weld steel mesh of different specifications.

[0065] When welding steel mesh using this device, transverse steel bars are supplied through the transverse steel bar feeding assembly 2, and the spacing between two adjacent transverse steel bars is adjusted through the transverse steel bar feeding assembly 2 to ensure that it meets the standard of ballastless track steel mesh. The spacing between two adjacent longitudinal steel bars can be adjusted through the longitudinal steel bar feeding assembly 3 (achieved by adjusting the speed of the feeding motor 316) to ensure that it meets the standard of ballastless track steel mesh, so that the transverse steel bars and longitudinal steel bars are spliced ​​together to form a mesh structure.

[0066] Specifically, when the transverse rebar feeding assembly 2 feeds in transverse rebar, the drive motor 220 drives the drive sprocket 221 to rotate. The drive sprocket 221 drives the transmission sprocket 219 to rotate through the transmission chain 222. The transmission sprocket 219 drives the movable seat 203 to rotate. The movable seat 203 drives the positioning rod 205 to rotate. The positioning rod 205 drives the movable sleeve 206 to rotate. The movable sleeve 206 drives the feeding roller 211 to rotate. The feeding roller 211 can drive the transverse rebar to move horizontally, thereby realizing the feeding of transverse rebar.

[0067] When the longitudinal steel bar feeding assembly 3 feeds in the longitudinal steel bars, the feeding motor 316 drives the drive wheel 317 to rotate. The drive wheel 317 drives the transmission wheel 318 to rotate through the transmission belt 319. The transmission wheel 318 drives the transmission rod 306 to rotate. The transmission rod 306 drives the feeding disc 307 to rotate. At this time, multiple longitudinal steel bars are placed into the feeding hood 314. Under the action of gravity, the longitudinal steel bars slide into the feeding pipe 313. When the feeding groove 308 on the feeding disc 307 rotates to the bottom of the feeding pipe 313, the longitudinal steel bars can fall into the feeding groove 308. The feeding disc 307 drives the longitudinal steel bars to move through the feeding groove 308 until the longitudinal steel bars move to the discharge chute 311. At this time, the longitudinal steel bars fall above the transverse steel bars through the discharge chute 311. At this time, the transverse steel bars and the longitudinal steel bars are spliced ​​together to form a mesh structure.

[0068] The steel mesh welding process involves welding the joints of the transverse and longitudinal steel bars using welding assembly 4 to achieve a welded connection between them. During welding, the transverse steel bar feeding assembly 2 moves the transverse steel bars, which in turn moves the longitudinal steel bars until the joint between them is positioned between the upper welding part 410 and the lower welding part 416. Then, the upper cylinder 409 and the lower cylinder 415 are controlled to move the corresponding upper welding part 410 and lower welding part 416 closer together, allowing the longitudinal and transverse steel bars to undergo resistance welding, ultimately resulting in the desired steel mesh.

[0069] Second embodiment

[0070] During the welding process of steel mesh, the transverse steel bars are generally rolled into coils, which are then stretched, straightened, and fed onto the feeding rollers 211 of the transverse steel bar feeding assembly 2. Multiple feeding rollers 211 typically feed multiple transverse steel bars simultaneously. The longitudinal steel bars are generally pre-cut to a specified length according to the specifications of the steel mesh, straightened, and then placed into the feed hood 314 of the longitudinal steel bar feeding assembly 3. The longitudinal steel bars in the feed chute 314 eventually fall onto the moving transverse steel bars and are then fed together to the upper welding section 410 and the lower welding section 416, where they are welded using resistance welding. However, in actual production, the transverse and longitudinal steel bars, even after initial straightening, often retain some bending, preventing them from contacting each other. During normal welding, these non-contacting transverse and longitudinal steel bars cannot be properly welded, resulting in incomplete welds. This reduces the welding quality of the steel mesh and affects its subsequent normal use. Furthermore, in the above embodiments, after the longitudinal reinforcing bar falls onto the transverse reinforcing bar, the transverse reinforcing bar pulls the longitudinal reinforcing bar forward to the welding position. Due to external vibrations, the position of the longitudinal reinforcing bar on the transverse reinforcing bar may change, making it impossible to weld the two together properly, ultimately affecting the normal use of the reinforcing mesh. Therefore, based on the above embodiments, this device has been further improved to solve the above-mentioned technical problems.

[0071] like Figure 16 As shown, a magnetizing component 324 is provided on the side wall of the material guide cover 309. When the feeding groove 308 drives the longitudinal steel bar to pass the position corresponding to the magnetizing component 324, the magnetizing component 324 can magnetize the longitudinal steel bar, making the longitudinal steel bar magnetic (the feeding groove 308 is made of non-ferromagnetic material to prevent it from being magnetized by the magnetizing component 324 and affecting the normal transmission of the longitudinal steel bar).

[0072] like Figure 17As shown, a set of magnetic sensors 325 are provided on the side wall of the discharge chute 311 near the transverse steel bar feeding assembly 2. The number of magnetic sensors 325 is the same as the number of feeding rollers 211 and they correspond one-to-one. Each magnetic sensor 325 can measure the magnetic field strength of the corresponding transverse steel bar passing through this location. Specifically, the magnetic sensor 325 can be a Hall sensor. After the longitudinal steel bar conveyed by the feeding groove 308 is magnetized, it falls from the discharge chute 311 onto the transverse steel bar below. Since the falling longitudinal steel bar is magnetized, it will magnetically adhere to the transverse steel bar, and the two will be connected as one. During the process of the transverse steel bar driving the longitudinal steel bar forward to the welding position, it can overcome the change in the position of the longitudinal steel bar above the transverse steel bar caused by external vibration, and avoid the problem of misalignment of the longitudinal steel bar and transverse steel bar during subsequent welding, thereby improving the welding quality of the steel mesh. On the other hand, after the magnetized longitudinal steel bar falls onto the transverse steel bar, it can magnetize each transverse steel bar connected to the longitudinal steel bar. At this time, the magnetic sensor 325 can measure the magnetic field strength of the magnetized transverse steel bar. Under normal circumstances, after the longitudinal reinforcement bars and each transverse reinforcement bar are magnetically attracted, the magnetic field strength of the corresponding transverse reinforcement bar measured by each magnetic sensor 325 is basically the same. Each magnetic sensor 325 transmits the measured magnetic field strength to the controller. The controller compares the measured magnetic force values. When one or more magnetic force values ​​are less than the normal value, it indicates that the corresponding transverse reinforcement bar measured by the magnetic sensor 325 has not been magnetically attracted to the magnetized longitudinal reinforcement bar. This indicates that there is a bend in the transverse and / or longitudinal reinforcement bars at this point, preventing them from being magnetically attracted together. The controller records the intersection point of the transverse and longitudinal reinforcement bars at this location. When the transverse and longitudinal reinforcing bars that failed to magnetically adhere together are conveyed to the welding position, the controller first controls the upper welding part 410 and lower welding part 416 corresponding to the transverse and longitudinal reinforcing bars that are farthest from the intersection point and normally magnetically adhered together (which can be determined by the measurement results of the corresponding magnetic force sensor 325) to perform welding, so as to initially complete the preliminary connection and fixation of the longitudinal and transverse reinforcing bars. Then, following the order of gradually approaching the intersection point that is not connected together, the transverse and longitudinal reinforcing bars that are normally magnetically adhered together are welded in sequence. Finally, the transverse and / or longitudinal reinforcing bars that are bent are welded. Using the above welding sequence, welding the transverse and longitudinal reinforcing bars that are normally magnetically adhered together first can play a role in connecting and fixing the transverse and longitudinal reinforcing bars. Finally, welding the transverse and longitudinal reinforcing bars that are bent and not magnetically adhered together will not affect other welding points. Conversely, if all transverse and longitudinal reinforcing bars are welded simultaneously, the bending of the transverse and / or longitudinal reinforcing bars will inevitably cause movement of the transverse and / or longitudinal reinforcing bars due to the compression of the upper weld portion 410 and the lower weld portion 416 during welding, which will affect the accuracy of welding and cause the problem of incomplete welding.

[0073] Thus, by magnetizing the longitudinal reinforcing bars, not only can the longitudinal reinforcing bars magnetically attract the transverse reinforcing bars, allowing both to be smoothly transferred to the welding position, thereby improving welding accuracy and ensuring welding quality, but the magnetized longitudinal reinforcing bars can also be used to further magnetize the transverse reinforcing bars. By measuring the magnetic field strength of the transverse reinforcing bars, it can be determined whether the intersections of the longitudinal and transverse reinforcing bars are connected. When all the intersections of the longitudinal and transverse reinforcing bars are connected, normal welding can be performed. However, when there are gaps in connection (i.e., the transverse and / or longitudinal reinforcing bars are bent), the above welding sequence for the intersections is used to gradually weld and tighten the other normally connected transverse and longitudinal reinforcing bars. Finally, the bent transverse and / or longitudinal reinforcing bars are welded to prevent the bending of the transverse and / or longitudinal reinforcing bars from affecting other welding points, further improving welding accuracy and the welding quality of the reinforcing mesh, demonstrating significant technical benefits.

[0074] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. Equipment for producing multi-layer welded steel mesh for ballastless tracks, characterized in that, It includes a support assembly (1), a transverse steel bar supply assembly (2), a longitudinal steel bar supply assembly (3), and a welding assembly (4). The transverse rebar feeding assembly (2) includes two symmetrically distributed mounting seats (201). Multiple equally spaced movable seats (203) are movably connected to the top of the inner wall of each mounting seat (201) via bearings. An adjusting rod (204) is movably connected to the middle of the inner side of each movable seat (203) via bearings. Two symmetrically distributed positioning rods (205) are fixedly connected to the middle of the inner side of each movable seat (203). Multiple movable sleeves (206) are sleeved on the outer side of each adjusting rod (204). The movable sleeve (206) has two symmetrically distributed positioning grooves (207) through the middle. The positioning rod (205) is connected through the positioning grooves (207). The movable sleeve (206) has a through groove (208) through the middle. An adjusting block (209) is fixedly connected to the middle of the inner side wall of the through groove (208). The adjusting rod (204) has two sets of symmetrically distributed adjusting grooves (210) on the outer side. A feeding roller (211) is fixedly connected to the middle of the outer side of the movable sleeve (206). The outer side of the feeding roller (211) has an arc-shaped groove in the middle. One end of the adjusting rod (204) has multiple limiting grooves (212) arranged in a circular array on its outer side. A positioning ring (213) is fixedly connected to the middle of the outer side of the movable seat (203). One end of the adjusting rod (204) is inserted into the positioning ring (213). A tube (214) is fixedly connected to the top of the outer wall of the positioning ring (213). The inside of the tube (214) is inserted into... A limiting plug (215) is connected to the bottom end of the limiting plug (215) and the limiting groove (212). The top end of the limiting plug (215) is movably connected to the inner wall of the top end of the insertion tube (214) by a spring. A limiting protrusion (216) is fixedly connected to the top end of the outer wall of the limiting plug (215). A strip groove (217) is opened through the middle of the outer side of the insertion tube (214). The limiting protrusion (216) and the strip groove (217) are connected through the groove. The longitudinal steel bar feeding assembly (3) includes two symmetrically distributed feeding seats (301). A transmission rod (306) is movably connected to the middle of the inner side wall of the feeding seat (301) via a bearing. A plurality of equally spaced feeding discs (307) are fixedly connected to the outer side wall of the transmission rod (306). A plurality of feeding grooves (308) arranged in a ring array are opened on the outer side of the feeding discs (307). Two symmetrically distributed supports (302) are fixedly connected to the bottom of the outer side wall of the feeding seat (301). A support column (303) is fixedly connected to the middle of the bottom end of the support (302). The inner side of the feeding seat (301) is provided with There is a guide cover (309), and connecting sleeves (310) are fixedly connected to both ends of the outer side wall of the guide cover (309). A discharge groove (311) is opened through the middle of the bottom end of the guide cover (309). A magnetizing component (324) is provided on the side wall of the guide cover (309). When the feeding groove (308) drives the longitudinal steel bar to pass the position corresponding to the magnetizing component (324), the magnetizing component (324) magnetizes the longitudinal steel bar, making the longitudinal steel bar magnetic. After the longitudinal steel bar conveyed by the feeding groove (308) is magnetized, it falls from the discharge groove (311) onto the transverse steel bar below, so that each transverse steel bar connected to the longitudinal steel bar is magnetized. The discharge trough (311) is provided with a set of magnetic sensors (325) on the side wall of the transverse steel bar feeding assembly (2). The number of magnetic sensors (325) is the same as the number of feeding rollers (211) and they correspond one-to-one. Each magnetic sensor (325) measures the magnetic field strength of the corresponding transverse steel bar that passes through this location. By measuring the magnetic field strength of the transverse steel bar, it is determined whether the intersection of the longitudinal steel bar and the transverse steel bar is connected.

2. The multi-layer steel welded mesh production equipment for ballastless track according to claim 1, characterized in that: The support assembly (1) includes a support frame (101), and support blocks (102) are fixedly connected to the four corners of the lower surface of the support frame (101). A base (103) is fixedly connected to the bottom end of the support block (102). Two symmetrically distributed support plates (104) are fixedly connected to one end of the upper surface of the support frame (101). The support plates (104) are set as an inclined structure, and a support roller (105) is provided on the side of the two support plates (104) that are close to each other.

3. The multi-layer steel welded mesh production equipment for ballastless track according to claim 1, characterized in that: The inner bottom of the mounting base (201) is fixedly connected to two symmetrically distributed fixed columns (202), and the adjusting rod (204) is connected through the movable sleeve (206); the outer side of the adjusting rod (204) is provided with two sets of symmetrically distributed adjusting grooves (210), the adjusting block (209) is set as a spherical structure, and the adjusting groove (210) is set as an arc structure.

4. The multi-layer steel welded mesh production equipment for ballastless track according to claim 1, characterized in that: One end of the adjusting rod (204) is fixedly connected to a handwheel (218), the middle of the outer side of the movable seat (203) is fixedly connected to a transmission sprocket (219), the middle of the bottom of the inner side wall of the mounting seat (201) is fixedly connected to a drive motor (220), the output shaft of the drive motor (220) is fixedly connected to a drive sprocket (221), and the drive sprocket (221) and the transmission sprocket (219) are connected by a transmission chain (222).

5. The multi-layer steel welded mesh production equipment for ballastless track according to claim 1, characterized in that: Mounting brackets (223) are fixedly connected to both ends of the upper surface of the mounting base (201). The mounting brackets (223) are configured with a "∩" shaped structure. Positioning grooves (224) are opened through the middle of both sides of the mounting brackets (223). Positioning sliders (225) are provided inside the positioning grooves (224). Extension grooves (226) are provided on the middle of both sides of the positioning sliders (225). Extension brackets (227) are fixedly connected to the middle of the inner side of the positioning sliders (225). Extension brackets (227) are configured with a "∩" shaped structure. Multiple compression springs (228) are fixedly connected to the upper surface of the extension brackets (227) at equal intervals. The top of the compression springs (228) is fixedly connected to the inner wall of the top of the mounting brackets (223). A compression roller (229) is provided at the bottom of the inner side wall of the extension brackets (227).

6. The multi-layer steel welded mesh production equipment for ballastless track according to claim 1, characterized in that: An auxiliary roller (304) is provided on the outer middle of the support column (303), and multiple connecting columns (305) are fixedly connected to the side of the two feeding seats (301) that are close to each other. The connecting columns (305) are connected to the connecting sleeve (310) through the connection.

7. The multi-layer steel welded wire mesh production equipment for ballastless track according to claim 6, characterized in that: The top center of the guide cover (309) is provided with a feed groove (312), and a feed pipe (313) is fixedly connected to the opening of the feed groove (312). The top of the feed pipe (313) is fixedly connected with a feed cover (314), and the feed cover (314) is configured as a trumpet-shaped structure.

8. The multi-layer steel welded wire mesh production equipment for ballastless track according to claim 7, characterized in that: A motor base (315) is fixedly connected to the middle of the outer side of the feeding seat (301). A feeding motor (316) is fixedly connected to the middle of the inner side wall of the motor base (315). A drive wheel (317) is fixedly connected to the output shaft of the feeding motor (316). A drive wheel (318) is fixedly connected to one end of the transmission rod (306). The drive wheel (317) and the drive wheel (318) are connected by a transmission belt (319). A threaded sleeve (320) is inlaid in the middle of the top of the outer side wall of the feeding seat (301). A threaded rod (321) is inserted into the inside of the threaded sleeve (320). A baffle (322) is movably connected to one end of the threaded rod (321) through a bearing. A circular groove (323) is opened through the middle of the baffle (322). The transmission rod (306) is connected through the circular groove (323).

9. The multi-layer steel welded mesh production equipment for ballastless track according to claim 1, characterized in that: The welding assembly (4) includes a welding frame (401). Two symmetrically distributed slide blocks (402) are fixedly connected to the bottom end of the welding frame (401). The slide blocks (402) are sleeved with the support frame (101). A locking bolt (403) is inserted into a screw hole in the middle of the outer wall of the slide block (402). One end of the locking bolt (403) is in contact with the middle of the outer wall of the support frame (101). A fixing rod (404) is fixedly connected to the top of the inner wall of the welding frame (401). Multiple equally spaced slide sleeves (405) are sleeved on the outer side of the fixing rod (404). A positioning bolt (406) is inserted into a screw hole in the middle of the outer wall of the slide sleeve (405). One end of the positioning bolt (406) is in contact with the outer wall of the fixing rod (404). The bottom end of the outer wall of the slide sleeve (405) is fixed. The upper fixed frame (407) is connected to the upper fixed frame (407), and an upper square sleeve (408) is slidably sleeved on the outer side of the upper fixed frame (407). An upper cylinder (409) is provided between the upper square sleeve (408) and the upper fixed frame (407). An upper welding part (410) is fixedly connected to the middle of the bottom end of the upper square sleeve (408). A lower fixed frame (411) is provided on the front side of the upper fixed frame (407). A lower square sleeve (412) is slidably sleeved on the outer side of the lower fixed frame (411). A lower cylinder (415) is provided between the lower square sleeve (412) and the lower fixed frame (411). A lower welding part (416) is fixedly connected to the middle of the bottom end of the lower square sleeve (412). A positioning seat (413) is fixedly connected to the bottom end of the inner side wall of the welding frame (401). Positioning rollers (414) are provided at both ends of the inner side wall of the positioning seat (413).

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