Fixed-length pipe cutting device with limiting function

Abstract

The application provides a fixed-length pipeline cutting equipment with limiting function, relates to the technical field of pipeline cutting control, and comprises a blanking limiting structure, a feeding structure, a cutting equipment main body and a linkage control structure. The blanking limiting structure comprises two L-shaped vertical plates, a V-shaped positioning plate, a stop block and a discharging plate. A feeding groove is formed in the interior of each L-shaped vertical plate. A jacking plate is slidably connected to the bottom of the discharging plate. A same main control strip passes through the interior of each L-shaped vertical plate. Two jacking strips that are parallel to each other are hingedly connected between the main control strip and the jacking plate. The technical key points are as follows: when the linkage control structure controls the cutting equipment main body to move from the back to the front to complete the segmented cutting work of the pipeline to be processed, the main control strip is pulled, the L-shaped vertical plate is lifted to the top through the two jacking strips, and the jacking plate is lifted, which is beneficial to the linkage release of the next pipeline to be processed after the cutting work of one pipeline to be processed is completed, and the processing work is orderly performed.

Description

Technical Field

[0001] This invention relates to the field of pipe cutting control technology, specifically a fixed-length pipe cutting device with a limiting function. Background Technology

[0002] Pipelines are constructed from pipes, pipe fittings, valves, and other connecting components, and are used to transport gases, liquids, or fluids containing solid particles. During operation, fluids are pressurized by blowers, compressors, pumps, and boilers, flowing from high-pressure areas to low-pressure areas. Alternatively, the fluid's own pressure or gravity can be used for transport. Pipelines are primarily used for water supply, drainage, heating, gas supply, long-distance transportation of oil and natural gas, agricultural irrigation, hydraulic engineering, and various industrial installations.

[0003] Pipelines can be categorized into metal pipes and non-metal pipes based on their raw materials. Cold drawing, as a processing method for metal pipes, can produce general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, machined pipes, thick-walled pipes, small-diameter cold-drawn pipes with internal molds, and other steel pipes, including carbon thin-walled steel pipes, alloy thin-walled steel pipes, stainless thin-walled steel pipes, and special-shaped steel pipes. After the steel pipe forming process is completed, it is usually cut into small sections of different lengths to meet actual usage requirements.

[0004] The patent document CN219703672U describes a pipe batch segment cutting device that utilizes a clamping mechanism and a feeding mechanism to clamp multiple pipes at once. The pipes are limited on the feeding support by a feeding cylinder and a feeding chuck. Then, the controller sets parameters to control the feeding motor to drive the feeding screw to move forward and feed the pipes to a fixed length. Finally, the clamping mechanism operates, and the sawing machine cuts the pipes by lowering the lifting cylinder. This device allows for batch and segment cutting, has a reasonable overall design, semi-automatic operation, precise dimensions, high efficiency, and a certain degree of versatility.

[0005] However, in the process of implementing the above technical solution, the following technical problems were found:

[0006] This pipe batch segmentation cutting device can perform batch segmentation work by clamping multiple pipes at once and controlling the pipes to move to one side for cutting. However, in actual application, the feeding, gripping, transfer and cutting of pipes all require coordination between various power components. Due to the large number of pipes processed at one time, it is easy for a single power component to be damaged or its accuracy to decrease, resulting in a large number of defective pipes in the batch segmentation. Summary of the Invention

[0007] To overcome the shortcomings of existing batch pipe segmentation cutting devices in practical applications, where pipe feeding, gripping, transfer, and cutting all require coordination between various power components, and are limited by the large number of products processed at one time, leading to the easy failure of a single power component or a decrease in accuracy, and resulting in a large number of defective pipe segments in batches, this application provides a fixed-length pipe cutting device with a limiting function. This device uses the reciprocating motion of the movable end of a hydraulic push rod, and with the help of a main control arm and lever arm, controls the I-beam base to drive the main body of the cutting device to complete the multi-segment cutting of the pipe to be processed. The extension arm... Repeatedly stepping over the outer teeth of the ratchet, then placing one end between the tooth roots of two adjacent teeth of the adjacent drive gear, allows the pawl to control the ratchet's rotation. After the drive gear completes a full rotation, the driven gear, with the help of its two lifting bars, lifts the lifting plate upwards. Using the inclined surface at the top of the lifting plate, the unloading plate pushes the first pipe to be processed, which is blocked by the stop block, upwards. The next pipe to be processed is then removed and ready to be cut into sections. This allows for the coordinated release of the next pipe to be processed after the cutting of one pipe, ensuring orderly processing and avoiding errors.

[0008] The technical solution adopted by the embodiments of this application to solve its technical problem is:

[0009] A fixed-length pipe cutting device with a limiting function includes a material feeding limiting structure, a feeding structure, a cutting device body, and a linkage control structure.

[0010] The feeding structure is located at the bottom of one end of the unloading limiting structure;

[0011] The main body of the cutting equipment is located on one side of the feeding structure;

[0012] The linkage control structure is located between the material feeding limit structure and the main body of the cutting equipment;

[0013] A cutting table is assembled and connected to the bottom of one end of the material feeding limiting structure, and an I-beam base is assembled and connected to the bottom of the main body of the cutting equipment. Support rollers are assembled and connected to the four corners of the bottom of the I-beam base.

[0014] The feeding structure includes a motor, one end of which is assembled with a base frame, one end of which is pin-connected with a connecting sleeve, a rubber wheel is sleeved on the outside of the connecting sleeve, a feeding bracket for mounting the top of the cutting table is provided between the base frame and the main body of the cutting equipment, and symmetrical front and rear limiting rollers are assembled and connected to the inner walls on both sides of the feeding bracket.

[0015] The material feeding limiting structure includes two L-shaped vertical plates that are symmetrically arranged on the left and right. Each of the two L-shaped vertical plates has a material feeding groove inside. A V-shaped positioning plate is assembled and connected between the bottom of the two L-shaped vertical plates at the material feeding groove. A stop block is assembled and connected to the surface of the L-shaped vertical plate at the middle of the material feeding groove. A discharge plate is movably connected between the two L-shaped vertical plates. A lifting plate is slidably connected to the bottom of the discharge plate. The same main control bar passes through the inside of the two L-shaped vertical plates. Two lifting bars that keep parallel are hinged between the main control bar and the lifting plate.

[0016] In this process, multiple pipes to be processed roll down from the inside of the feed chute along the inclined inner wall to the bottom and are blocked by the stop. When the lifting plate is controlled to move upward, and the unloading plate is pushed by the top inclined surface to push the pipes to be processed to the top of the stop in an inclined state, the pipes to be processed enter the inner side of the V-shaped positioning plate. One end is supported by a rubber wheel, and the other end is controlled by an electric push rod set at the end of the unloading limit structure away from the feeding structure, and enters between two symmetrical limit rollers.

[0017] When the linkage control structure controls the main body of the cutting equipment to move from the back to the front to complete the segmented cutting of the pipe to be processed, it pulls the main control bar, so that the L-shaped vertical plate is lifted to the top through the two lifting bars.

[0018] In one possible implementation, each of the two L-shaped vertical plates has an extension inclined plate assembled to its opposite side surface, and a guide ladder is assembled to the top of each of the two extension inclined plates; the top surface of the extension inclined plate is flush with the inclined inner wall of the bottom of the material conveying chute, and one end of the plate is higher than the top surface of the L-shaped vertical plate; the guide ladder is inclined toward one end of the extension inclined plate, guiding the pipe to be processed to roll down from the top of the guide ladder to the top of the extension inclined plate and enter the inner side of the material conveying chute.

[0019] In one possible implementation, unloading guide rods are integrally formed at the bottom of both ends of the unloading plate, unloading slides are welded to the surfaces of the two L-shaped vertical plates, and lifting guide rods are integrally formed at the bottom of both ends of the lifting plate; the two unloading guide rods are slidably connected to the interior of the two unloading slides, the two lifting guide rods are slidably connected to the interior of the two L-shaped vertical plates, and the main control bar is movably connected to the interior of the two lifting guide rods.

[0020] In one possible implementation, a threaded rod is threadedly connected to the middle of the main control bar, and the top of both ends of the lifting plate are machined with beveled surfaces; one end of the threaded rod passes through the interior of the main control bar and is supported at the bottom of the lifting plate, and the lifting plate is movably connected between two unloading slides through the beveled surfaces.

[0021] In one possible implementation, the top of the cutting table on the side away from the material feeding limit structure is assembled with a first track bar and a second track bar that are parallel to each other, and an L-shaped buckle plate that is symmetrically arranged between the first track bar and the second track bar; two support rollers on both sides of the I-beam base are respectively rolled and connected to the top of the first track bar and the second track bar, and the bottom of the I-beam base is slidably connected between the two L-shaped buckles.

[0022] In one possible implementation, the linkage control structure includes a hydraulic push rod, one end of which is assembled to a main control arm. A lever arm is located at the end of the main control arm near the main body of the cutting equipment. An extension arm is located at the end of the main control arm near the material feeding limit structure. A ratchet assembly is located at one end of the extension arm. A third link is located at the bottom of the extension arm away from the ratchet assembly. A drive gear is located at the bottom of the ratchet assembly. A driven gear is meshed with one side of the drive gear. The internal pin-connected shaft is connected to a pin shaft, and the middle of the pin shaft is connected to a prying element. The end of the main control bar away from the material feeding limit structure is internally connected to a drive rod. The end of the hydraulic push rod away from the main control arm is assembled to the top of the feeding bracket. The bottom of the pin shaft is fitted with a second bearing seat through an interference fit. The second bearing seat is machined to the surface of the cutting table. The hydraulic push rod controls the rotation of the driven gear through the main control arm, the extension arm and the ratchet assembly. It applies pressure to the drive rod with the pin shaft, so that the main control bar moves between the two L-shaped vertical plates.

[0023] In one possible implementation, a second connecting rod is integrally formed at the bottom of the lever arm near the main control arm, and a first connecting rod is integrally formed at the bottom of the lever arm near the main body of the cutting equipment. A strip groove is formed at the top of the I-beam base. A support shaft is provided between the first and second connecting rods, and a support sleeve is sleeved on the outside of the support shaft. The bottom of the support sleeve is fixed to the top surface of the cutting table, and the support shaft is fixed to the area of ​​the lever arm near the second connecting rod. The second connecting rod is slidably connected to the inside of the main control arm near the main body of the cutting equipment, and the first connecting rod is slidably connected to the inside of the strip groove.

[0024] In one possible implementation, the ratchet assembly includes a ratchet with inner liner rings sleeved to its top and bottom. Each of the two inner liner rings has a cover sleeved to its outer side. A back plate is mounted to the side of the two covers. A pawl is rotatably connected between the two covers via a central bolt. A spring is provided between the outer side of the pawl and the back plate. One end of the extension arm is mounted and fixed between one end of the two covers. A third link is slidably connected to the interior of the main control arm near the unloading limit structure. The pawl is supported by a spring and abuts against two adjacent teeth of the ratchet.

[0025] In one possible implementation, the pin is also pinned to the interior of the drive gear and the ratchet, and the bottom of the pin is sleeved with a first bearing seat, the bottom of which is fixed to the top surface of the cutting table.

[0026] In one possible implementation, the number of teeth on the ratchet corresponds to the number of cutting blades required for the pipe to be processed. When the hydraulic push rod reciprocates at its movable end, and the main control arm and lever arm control the I-beam plate seat to drive the main body of the cutting equipment to complete the multi-segment cutting of the pipe to be processed, the main control arm drives the extension arm to make the two buckles rotate outside the inner liner ring, and the pawl controls the ratchet to rotate a full circle.

[0027] The beneficial effects of this application are as follows:

[0028] Firstly, in this solution, by using the reciprocating motion of the hydraulic push rod's movable end, and with the help of the main control arm and lever arm to control the I-beam plate seat to drive the main body of the cutting equipment to complete the multi-segment cutting of the pipe to be processed, the extension arm repeatedly crosses the teeth on the outside of the ratchet, and then one end of it abuts between the tooth roots of two adjacent teeth of the adjacent drive gear, so that the cover can control the ratchet to rotate through the pawl. After the drive gear rotates a full circle, the driven gear uses its two lifting bars to lift the lifting plate to the top. With the help of the inclined surface at the top of the lifting plate, the unloading plate pushes the first pipe to be processed, which is blocked by the stop block, to the top, and removes the next pipe to be processed to be cut into segments. This is beneficial for releasing the next pipe to be processed after the cutting of one pipe is completed, so that the processing work is carried out in an orderly manner and errors are avoided.

[0029] Secondly, in this solution, by fixing the support shaft to the area near the second link of the lever arm, the hydraulic push rod controls the extension arm through the main control arm to drive the cover to rotate slightly, while the main control arm controls the I-beam seat to perform large-distance displacement work through the lever arm and the support shaft. This helps to reduce the use of power components and meet the actual application requirements. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of a fixed-length pipe cutting device with limiting function according to the present invention;

[0031] Figure 2 This is a schematic diagram of the material feeding limiting structure of a fixed-length pipe cutting device with limiting function according to the present invention;

[0032] Figure 3 This invention relates to a fixed-length pipe cutting device with a limiting function. Figure 2 Enlarged diagram of section B;

[0033] Figure 4This is a cross-sectional view of the unloading plate and V-shaped positioning plate of a fixed-length pipe cutting device with limiting function according to the present invention;

[0034] Figure 5 This invention relates to a fixed-length pipe cutting device with a limiting function. Figure 1 Enlarged diagram of section A in the middle;

[0035] Figure 6 This is a schematic diagram of the position structure of the linkage control structure and the feeding structure of the fixed-length pipe cutting equipment with limiting function according to the present invention.

[0036] Figure 7 This is a schematic diagram of the linkage control structure of a fixed-length pipe cutting device with limiting function according to the present invention.

[0037] Figure 8 This is one of the exploded schematic diagrams of the linkage control structure of a fixed-length pipe cutting device with limiting function according to the present invention;

[0038] Figure 9 This is the second exploded schematic diagram of the linkage control structure of a fixed-length pipe cutting device with limiting function according to the present invention;

[0039] Figure 10 This is one of the schematic diagrams showing the working state of the linkage control structure of a fixed-length pipe cutting device with limiting function according to the present invention;

[0040] Figure 11 This is the second schematic diagram of the linkage control structure of a fixed-length pipe cutting device with limiting function according to the present invention in its working state.

[0041] Figure label:

[0042] 1. Pipes to be processed;

[0043] 2. Material unloading limit structure; 201. L-shaped vertical plate; 202. Extending inclined plate; 203. Lifting bar; 204. Threaded rod; 205. Lifting plate; 206. Unloading plate; 207. V-shaped positioning plate; 208. Guide ladder; 209. Stop block; 210. Main control bar; 211. Lifting guide rod; 212. Unloading slide; 213. Unloading guide rod; 214. Drive rod;

[0044] 3. Linkage control structure; 301. Hydraulic push rod; 302. Drive gear; 303. Driven gear; 304. Lever arm; 305. Support bushing; 306. Main control arm; 307. Extension arm; 308. Cover; 309. Inner liner ring; 310. Ratchet; 311. Spring; 312. Pin; 313. First bearing seat; 314. Third link; 315. First link; 316. Back plate; 317. Pawl; 318. Second bearing seat; 319. Actuating element; 320. Support shaft; 321. Second link;

[0045] 4. Feeding structure; 401. Motor; 402. Base; 403. Rubber wheel; 404. Connecting sleeve; 405. Limiting roller; 406. Feeding bracket;

[0046] 5. Main body of the cutting equipment; 6. Cutting table; 7. Material feeding chute; 8. Beveled surface; 9. First track bar; 10. Support roller; 11. L-shaped buckle plate; 12. I-beam plate base; 13. Second track bar; 14. Strip groove. Detailed Implementation

[0047] The technical solution in this application embodiment is to solve the problems mentioned in the background art, and the overall idea is as follows:

[0048] Example 1:

[0049] This embodiment describes the specific structure of a fixed-length pipe cutting device with a limiting function, as detailed in the following reference. Figures 1-5 As shown, it includes a material feeding limit structure 2, a feeding structure 4 set at the bottom of one end of the material feeding limit structure 2, a cutting equipment body 5 set on one side of the feeding structure 4, and a linkage control structure 3 set between the material feeding limit structure 2 and the cutting equipment body 5. A cutting table 6 is assembled and connected to the bottom of one end of the material feeding limit structure 2, and an I-beam plate base 12 is assembled and connected to the bottom of the cutting equipment body 5. Support rollers 10 are assembled and connected to the four corners of the bottom of the I-beam plate base 12.

[0050] like Figure 2 and Figure 4 As shown, the unloading limiting structure 2 includes two L-shaped vertical plates 201 that are symmetrically arranged on the left and right. The interior of each L-shaped vertical plate 201 is provided with a material feeding groove 7. A V-shaped positioning plate 207 is assembled and connected between the bottom of the two L-shaped vertical plates 201 and the middle of the material feeding groove 7. A stop block 209 is assembled and connected to the surface of the L-shaped vertical plate 201 at the middle of the material feeding groove 7. A discharge plate 206 is movably connected between the two L-shaped vertical plates 201. A lifting plate 205 is slidably connected to the bottom of the discharge plate 206. The same main control bar 210 passes through the interior of the two L-shaped vertical plates 201. Two lifting bars 203 that keep parallel are hinged between the main control bar 210 and the lifting plate 205.

[0051] In order to facilitate the entry of multiple pipes 1 to be processed into the interior of the feed trough 7, such as Figure 2 and Figure 4 As shown, two L-shaped vertical plates 201 are each fitted with an extension inclined plate 202 on their opposite side surfaces. The top of each extension inclined plate 202 is fitted with a guide ladder 208. By keeping the top surface of the extension inclined plate 202 flush with the bottom inclined inner wall of the feed trough 7, and with one end of the plate higher than the top surface of the L-shaped vertical plate 201, the guide ladder 208 tilts towards one end of the extension inclined plate 202, which can guide the pipe 1 to be processed to roll down from the top of the guide ladder 208 to the top of the extension inclined plate 202. Thus, guided by the inclined extension inclined plate 202, multiple pipes 1 to be processed enter the inner side of the feed trough 7 and are blocked by the stop block 209.

[0052] As multiple pipes 1 to be processed roll down the inclined inner wall of the feed trough 7 and are blocked by the stop block 209, the lifting plate 205 is controlled to move upward. With the help of the top inclined surface, the unloading plate 206 pushes the pipes 1 to be processed to move towards the top of the stop block 209 in an inclined state. The pipes 1 to be processed enter the inner side of the V-shaped positioning plate 207. One end is supported by the rubber wheel 403, and the other end is controlled by the electric push rod set at the end of the unloading limit structure 2 away from the feeding structure 4, and enters between two symmetrical limit rollers 405.

[0053] Secondly, to allow the main control bar 210 to move towards one side of the cutting table 6, the two lifting bars 203 can be used to lift the lifting plate 205 upwards, and the lifting plate 205, with the help of its inclined surface, can cause the unloading plate 206 to push the first pipe 1 to be processed, which is blocked by the stop block 209, upwards. Figure 3 and Figure 4 As shown, unloading guide rods 213 are integrally formed at the bottom of both ends of the unloading plate 206, unloading slides 212 are welded to the surface of both L-shaped vertical plates 201, and lifting guide rods 211 are integrally formed at the bottom of both ends of the lifting plate 205. By sliding the two lifting guide rods 211 into the interior of the two L-shaped vertical plates 201 respectively, and the main control bar 210 is movably connected into the interior of the two lifting guide rods 211, a fixed track can be provided for the lifting plate 205 to move up and down.

[0054] Meanwhile, by slidably connecting the two unloading guide rods 213 to the inside of the two unloading slides 212, the cooperation between the unloading slides 212 and the unloading guide rods 213 can provide a fixed track for the unloading plate 206 to move along its inclined direction.

[0055] Furthermore, in order to allow the lifting platform 205 to be erected to a fixed height, such as Figure 2As shown, the main control bar 210 is threadedly connected to the middle of the threaded rod 204, and the top of both ends of the lifting plate 205 are machined with beveled surfaces 8. By passing one end of the threaded rod 204 through the interior of the main control bar 210 and supporting it at the bottom of the lifting plate 205, the lifting plate 205 can be erected to a fixed height to support the unloading plate 206 at the bottom of the first pipe to be processed 1 blocked by the stop block 209.

[0056] Meanwhile, by movably connecting the lifting plate 205 between the two unloading slides 212 via the inclined surface 8, interference between the lifting plate 205 and the top edge of the unloading slide 212 can be avoided during the up-and-down movement of the unloading plate 205.

[0057] like Figures 6 to 11 The linkage control structure 3 includes a hydraulic push rod 301. One end of the hydraulic push rod 301 is assembled with a main control arm 306. The end of the main control arm 306 near the main body 5 of the cutting equipment is provided with a lever arm 304. The end of the main control arm 306 near the unloading limit structure 2 is provided with an extension arm 307. One end of the extension arm 307 is provided with a ratchet assembly. The bottom of the end of the extension arm 307 away from the ratchet assembly is provided with a third connecting rod 314. The bottom of the ratchet assembly is provided with a drive gear 302. One side of the drive gear 302 is meshed with a driven gear 303. The driven gear 303 is internally pinned to a pin shaft 312. The middle of the pin shaft 312 is pinned to a prying element 319. The end of the main control bar 210 away from the unloading limit structure 2 is internally pinned to a drive rod 214.

[0058] The ratchet assembly includes a ratchet 310, with inner liner rings 309 sleeved on both the top and bottom of the ratchet 310. Each of the two inner liner rings 309 is fitted with a cover 308. A back plate 316 is assembled and connected to the side between the two covers 308. A pawl 317 is rotatably connected between the two covers 308 by means of a axial bolt. A spring 311 is provided between the outer side of the pawl 317 and the back plate 316.

[0059] In this process, by assembling the end of the hydraulic push rod 301 away from the main control arm 306 to the top of the feeding bracket 406, and by interfering with the bottom of the pin 312 through the bearing, a second bearing seat 318 is attached to the surface of the cutting table 6. When the hydraulic push rod 301 controls the driven gear 303 to rotate through the main control arm 306, the extension arm 307 and the ratchet assembly, the drive rod 214 can be pressed by means of the pin 312, so that the main control bar 210 moves between the two L-shaped vertical plates 201, so as to achieve the effect of the main control bar 210 moving to pull the two lifting bars 203 to lift the lifting plate 205 to the top, thereby pushing the unloading plate 206 at the top of the lifting plate 205 to the top to push a pipe 1 to be processed.

[0060] Secondly, by fixing one end of the extension arm 307 between one end of the two buckles 308, and slidingly connecting the third link 314 inside the end of the main control arm 306 near the unloading limit structure 2, when the pawl 317 is supported by the spring 311 and abuts between two adjacent teeth of the ratchet 310, it can prevent the ratchet 310 from rotating in the opposite direction. At the same time, by cooperating with the pawl 317 and the ratchet 310, the drive gear 302 is driven to rotate. This is mainly based on the repeated extension and reset of the movable end inside the hydraulic push rod 301 to complete the work of the drive gear 302 driving the driven gear 303.

[0061] Furthermore, to ensure that the pawl 317 can overcome the supporting resistance of the spring 311 and pass over the teeth on the ratchet 310, such as... Figure 8 As shown, the pin 312 is also pinned to the inside of the drive gear 302 and the ratchet 310. The bottom of the pin 312 is sleeved with the first bearing 313. By fixing the bottom of the first bearing 313 to the top surface of the cutting table 6, the pawl 317 can smoothly pass over the teeth on the outside of the ratchet 310 with the help of the frictional resistance between the first bearing 313 and the pin 312. Then, without affecting the fact that one end of the pawl 317 abuts against the tooth root of two adjacent teeth of the adjacent drive gear 302, the cover 308 can control the ratchet 310 to rotate through the pawl 317.

[0062] Simultaneously, by aligning the number of teeth on the ratchet 310 with the number of cutting blades required for the pipe 1 to be processed, the hydraulic push rod 301 reciprocates at its movable end. With the help of the main control arm 306 and lever arm 304, the I-beam base 12 drives the main body of the cutting equipment 5 to complete the multi-segment cutting of the pipe 1. Meanwhile, the main control arm 306 drives the extension arm 307 to rotate the two covers 308 outside the inner liner ring 309. The pawl 317 controls the ratchet 310 to rotate a full revolution, thereby causing the driven gear 303 to drive the actuating element 319 to apply pressure to the drive rod 214 via the pin 312 connected to it, completing the main control bar 210... In a single pull operation, when the main control bar 210 moves to one side of the cutting table 6, the lifting plate 205 is lifted to the top by the two lifting bars 203. The lifting plate 205, with the help of its top slope, causes the unloading plate 206 to push the first pipe to be processed 1, which is blocked by the stop block 209, to move to the top. The next pipe to be processed 1 can be removed and waited to be cut into segments (that is, when the linkage control structure 3 controls the main body 5 of the cutting equipment to move from the back to the front to complete the segmented cutting of the pipe to be processed 1, it pulls the main control bar 210, so that the L-shaped vertical plate 201 lifts the lifting plate 205 to the top through the two lifting bars 203).

[0063] The above design uses the reciprocating motion of the movable end of the hydraulic push rod 301. With the help of the main control arm 306 and lever arm 304, the I-beam base 12 drives the main body 5 of the cutting equipment to complete the multi-segment cutting of the pipe 1 to be processed. The main control arm 306 drives the extension arm 307 to rotate the two covers 308 outside the inner liner ring 309. The pawl 317 between the two covers 308 compresses the spring 311, repeatedly crossing the teeth on the outer side of the ratchet 310 (e.g., ...). Figure 10 Then, one end of it is placed between the tooth roots of two adjacent teeth of the adjacent drive gear 302, so that the cover 308 can control the ratchet 310 to rotate via the pawl 317 (e.g., Figure 11 This allows the driven gear 303 to drive the actuating element 319 to apply pressure to the drive rod 214 after the driving gear 302 rotates a full revolution, via the pin 312 connected to it, thus completing a single pull of the main control bar 210.

[0064] When the main control bar 210 is pulled to one side of the cutting table 6, the lifting plate 205 is lifted to the top by the two lifting bars 203 (the lifting guide rod 211 slides inside the L-shaped vertical plate 201 to provide a moving track for the lifting plate 205), and the lifting plate 205, with the help of the inclined surface at the top, pushes the unloading plate 206 (the unloading guide rod 213 and the unloading slide 212 cooperate to provide a moving track for the unloading plate 206) to move the first pipe to be processed 1 blocked by the stop block 209 to the top, so that the next pipe to be processed 1 can be removed and waited to be cut into sections.

[0065] Example 2:

[0066] Based on Example 1, this example describes the specific structure of the feeding structure 4, such as... Figure 1 , Figures 5 to 7 The feeding structure 4 includes a motor 401. One end of the motor 401 is assembled and connected to a base 402. One end of the shaft of the base 402 is pin-connected to a connecting sleeve 404. A rubber wheel 403 is sleeved on the outside of the connecting sleeve 404. A feeding bracket 406 is provided between the base 402 and the main body 5 of the cutting equipment, which is mounted on the top of the cutting table 6. Both sides of the inner wall of the feeding bracket 406 are assembled and connected with symmetrical front and rear limiting rollers 405.

[0067] When the pipe to be processed 1 is released from the obstruction of the stop block 209 from the inside of the feed chute 7, the pipe to be processed 1 enters the inside of the V-shaped positioning plate 207. One end is supported by the rubber wheel 403, and the other end is controlled by the electric push rod set at the end of the unloading limit structure 2 away from the feeding structure 4. It enters between two symmetrical limit rollers 405. Then, with the help of the motor 401 driving the rubber wheel 403, the pipe to be processed 1 can be controlled to move forward continuously, and the cutting work is completed by the main body of the cutting equipment 5.

[0068] Example 3:

[0069] Based on Embodiments 1 and 2, this embodiment describes the relevant structures of the cutting equipment body 5 and the cutting table 6, such as... Figures 6 to 11 As shown, the top of the cutting table 6 on the side away from the material feeding limit structure 2 is assembled with a first track bar 9 and a second track bar 13 that are parallel to each other. A left-right symmetrical L-shaped buckle plate 11 is provided between the first track bar 9 and the second track bar 13.

[0070] In this way, by having the two support rollers 10 on both sides of the I-beam base 12 roll and connect to the top of the first track 9 and the second track 13 respectively, and the bottom of the I-beam base 12 slide and connect between the two L-shaped buckles 11, it can be ensured that the main body 5 of the cutting equipment moves from the back to the front and resets smoothly, thus ensuring safety.

[0071] like Figure 7 As shown, a second connecting rod 321 is integrally formed at the bottom of the lever arm 304 near the main control arm 306, and a first connecting rod 315 is integrally formed at the bottom of the lever arm 304 near the main body 5 of the cutting equipment. A strip groove 14 is opened at the top of the I-beam plate seat 12. A support shaft 320 is provided between the first connecting rod 315 and the second connecting rod 321, and a support shaft sleeve 305 is sleeved on the outside of the support shaft 320.

[0072] By fixing the bottom of the support bushing 305 to the top surface of the cutting table 6 and fixing the support shaft 320 to the area near the second connecting rod 321 of the lever arm 304, the second connecting rod 321 can be slidably connected to the inside of the main control arm 306 near the cutting equipment body 5, and the first connecting rod 315 can be slidably connected to the inside of the strip groove 14. The lever principle controls the I-beam base 12 to drive the cutting equipment body 5 to slide on the top of the first track 9 and the second track 13. During the process of the hydraulic push rod 301 controlling the extension arm 307 to drive the cover 308 to rotate slightly through the main control arm 306, the main control arm 306 can control the I-beam base 12 to move a large distance through the lever arm 304 and the support shaft 320, which is beneficial to meet the actual use requirements.

[0073] The above design fixes the support shaft 320 to the area of ​​the lever arm 304 near the second connecting rod 321. During the process of the hydraulic push rod 301 controlling the extension arm 307 to drive the cover 308 to rotate slightly through the main control arm 306, the main control arm 306 controls the I-beam plate seat 12 to perform large-distance displacement work through the lever arm 304 and the support shaft 320. This helps to reduce the use of power components, match the number of material feeding and cutting, and meet the actual application requirements.

[0074] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A fixed-length pipe cutting device with a limiting function, characterized in that, include: Material feeding limit structure (2); The feeding structure (4) is located at the bottom of one end of the unloading limiting structure (2); The main body of the cutting equipment (5) is located on one side of the feeding structure (4); The linkage control structure (3) is located between the unloading limit structure (2) and the main body of the cutting equipment (5); The bottom of one end of the material feeding limiting structure (2) is assembled with a cutting table (6), the bottom of the main body (5) of the cutting equipment is assembled with an I-beam base (12), and the four corners of the bottom of the I-beam base (12) are all assembled with supporting rollers (10). The feeding structure (4) includes a motor (401), one end of which is assembled with a base (402), one end of which is pin-connected with a connecting sleeve (404), and a rubber wheel (403) is sleeved on the outside of the connecting sleeve (404). A feeding bracket (406) for mounting the top of the cutting table (6) is provided between the base (402) and the main body (5) of the cutting equipment. Symmetrical limiting rollers (405) are assembled on both sides of the inner wall of the feeding bracket (406). The material feeding limiting structure (2) includes two L-shaped upright plates (201) that are symmetrical on the left and right. The interior of each of the two L-shaped upright plates (201) is provided with a material feeding groove (7). A V-shaped positioning plate (207) is assembled between the bottom of the two L-shaped upright plates (201) located in the material feeding groove (7). A stop block (209) is assembled at the middle of the material feeding groove (7) on the surface of the L-shaped upright plate (201). A discharge plate (206) is movably connected between the two L-shaped upright plates (201). A lifting plate (205) is slidably connected to the bottom of the discharge plate (206). The same main control bar (210) passes through the interior of the two L-shaped upright plates (201). Two lifting bars (203) that keep parallel are hinged between the main control bar (210) and the lifting plate (205). The linkage control structure (3) includes a hydraulic push rod (301), one end of which is assembled with a main control arm (306). A lever arm (304) is provided at the end of the main control arm (306) near the main body (5) of the cutting equipment, and an extension arm (307) is provided at the end of the main control arm (306) near the unloading limit structure (2). A ratchet assembly is provided at one end of the extension arm (307), and the end of the extension arm (307) away from the ratchet assembly is... A third link (314) is provided at the bottom of the ratchet assembly. A drive gear (302) is provided at the bottom of the ratchet assembly. A driven gear (303) is meshed with one side of the drive gear (302). A pin shaft (312) is pin-connected inside the driven gear (303). A toggle element (319) is pin-connected in the middle of the pin shaft (312). A drive rod (214) is pin-connected inside the end of the main control bar (210) away from the unloading limit structure (2). The lever arm (304) has a second connecting rod (321) integrally formed at the bottom near the main control arm (306), and the lever arm (304) has a first connecting rod (315) integrally formed at the bottom near the cutting equipment body (5). The top of the I-beam base (12) has a strip groove (14). A support shaft (320) is provided between the first connecting rod (315) and the second connecting rod (321). A support bushing (305) is sleeved on the outside of the support shaft (320). The bottom of the support bushing (305) is fixed to the top surface of the cutting table (6). The support shaft (320) is fixed to the area of ​​the lever arm (304) near the second connecting rod (321). The second connecting rod (321) is slidably connected to the inside of the main control arm (306) near the cutting equipment body (5). The first connecting rod (315) is slidably connected to the inside of the strip groove (14). The ratchet assembly includes a ratchet (310), with inner liner rings (309) sleeved on the top and bottom of the ratchet (310). A cover (308) is sleeved on the outside of each of the two inner liner rings (309). A back plate (316) is assembled and connected to the side of the two cover (308). A pawl (317) is rotatably connected between the two cover (308) by means of a central bolt. A spring (311) is provided between the outer side of the pawl (317) and the back plate (316). One end of the extension arm (307) is assembled and fixed between one end of the two cover (308). The third link (314) is slidably connected to the inside of the main control arm (306) near the unloading limit structure (2). The pawl (317) is supported by the spring (311) and abuts against two adjacent teeth of the ratchet (310). Among them, multiple pipes (1) to be processed roll down from the inside of the feed chute (7) along the inclined inner wall to the bottom and are blocked by the stop block (209). When the lifting plate (205) is controlled to move to the top, and the unloading plate (206) is pushed by the top inclined surface to push the pipes (1) to be processed to the top of the stop block (209) in an inclined state, the pipes (1) to be processed enter the inner side of the V-shaped positioning plate (207), one end is supported by the rubber wheel (403), and the other end is controlled by the electric push rod set at the end of the unloading limit structure (2) away from the feeding structure (4), and enters between two symmetrical limit rollers (405); When the linkage control structure (3) controls the main body (5) of the cutting equipment to move from the back to the front to complete the segmented cutting of the pipe (1) to be processed, it pulls the main control bar (210) so that the L-shaped vertical plate (201) is lifted to the top by two lifting bars (203) to lift the lifting plate (205).

2. The fixed-length pipe cutting device with limiting function as described in claim 1, characterized in that: Both L-shaped vertical plates (201) are assembled with extended inclined plates (202) on opposite side surfaces, and both extended inclined plates (202) are assembled with guide ladders (208) on top. The top surface of the extension inclined plate (202) is flush with the bottom inclined inner wall of the feed trough (7), and one end of it is higher than the top surface of the L-shaped vertical plate (201). The guide ladder (208) is inclined toward one end of the extension inclined plate (202) to guide the pipe (1) to be processed to roll down from the top of the guide ladder (208) to the top of the extension inclined plate (202) and enter the inner side of the feed trough (7).

3. The fixed-length pipe cutting device with limiting function as described in claim 1, characterized in that: The bottom of both ends of the unloading plate (206) is integrally formed with unloading guide rods (213), the surfaces of the two L-shaped upright plates (201) are welded with unloading slides (212), and the bottom of both ends of the lifting plate (205) is integrally formed with lifting guide rods (211). Among them, the two unloading guide rods (213) are slidably connected to the inside of the two unloading slides (212), the two lifting guide rods (211) are slidably connected to the inside of the two L-shaped uprights (201), and the main control bar (210) is movably connected to the inside of the two lifting guide rods (211).

4. A fixed-length pipe cutting device with limiting function as described in claim 1, characterized in that: The main control bar (210) is threadedly connected to a threaded rod (204) in the middle, and the top of both ends of the lifting plate (205) are machined with beveled surfaces (8); One end of the threaded rod (204) passes through the interior of the main control bar (210) and is supported at the bottom of the lifting plate (205). The lifting plate (205) is movably connected between the two unloading slides (212) through the oblique surface (8).

5. A fixed-length pipe cutting device with limiting function as described in claim 1, characterized in that: The top of the cutting table (6) away from the material feeding limit structure (2) is assembled with a first track bar (9) and a second track bar (13) that are parallel to each other. A left-right symmetrical L-shaped buckle plate (11) is provided between the first track bar (9) and the second track bar (13). Among them, the two supporting rollers (10) on both sides of the I-beam base (12) are respectively rolled and connected to the top of the first track (9) and the second track (13), and the bottom of the I-beam base (12) is slidably connected between the two L-shaped buckles (11).

6. A fixed-length pipe cutting device with limiting function as described in claim 1, characterized in that: The end of the hydraulic push rod (301) away from the main control arm (306) is assembled to the top of the feeding bracket (406). The bottom of the pin (312) is fitted with a second bearing seat (318) through an interference fit. The second bearing seat (318) is machined to the surface of the cutting table (6). The hydraulic push rod (301) controls the driven gear (303) to rotate through the main control arm (306), the extension arm (307) and the ratchet assembly. The pin (312) applies pressure to the drive rod (214) to make the main control bar (210) move between the two L-shaped uprights (201).

7. A fixed-length pipe cutting device with limiting function as described in claim 1, characterized in that: The pin (312) is also pinned to the inside of the drive gear (302) and the ratchet (310). The bottom of the pin (312) is sleeved with a first bearing seat (313), and the bottom of the first bearing seat (313) is fixed to the top surface of the cutting table (6).

8. A fixed-length pipe cutting device with limiting function as described in claim 1, characterized in that: The number of teeth of the ratchet (310) corresponds to the number of cutting blades required for the pipe (1) to be processed. When the hydraulic push rod (301) moves back and forth, the main control arm (306) and the lever arm (304) control the I-plate seat (12) to drive the main body of the cutting equipment (5) to complete the multi-segment cutting of the pipe (1) to be processed. When the main control arm (306) drives the extension arm (307) to make the two buckles (308) rotate outside the inner liner ring (309), the ratchet (317) controls the ratchet (310) to rotate a full circle.

Images