A pipe slitting machine

Abstract

The present invention relates to the technical field of slitting machines, and proposes a pipe slitting machine, including a frame, an upper knife roller and a lower knife roller, the upper knife roller and the lower knife roller are both rotatably arranged on the frame, a cutting interval is formed between the upper knife roller and the lower knife roller for the steel strip to be cut into steel strips, the upper knife roller and the lower knife roller both include a knife shaft, the annular knife plate is slidably arranged on the knife shaft, an annular partition is slidably arranged on the knife shaft, a plurality of annular partitions are arranged between two adjacent annular knife plates, the moving pusher is radially slidably arranged on the knife shaft, and after moving, pushes two adjacent annular partitions away from each other, so that the cutting interval and the partition interval are increased. Through the above technical scheme, the technical problem of low replacement efficiency when the pipe slitting machine processes steel pipes of different diameters and replaces the cutter in the related technology is solved.

Description

Technical Field

[0001] The invention relates to the technical field of slitting machines, and in particular to a pipe making slitting machine. Background Art

[0002] The pipe slitting machine is a kind of equipment specially used in the steel processing industry. It is mainly used to cut a wide steel coil into multiple narrow steel strips according to the set size, so as to be processed into steel pipes or other metal products of various specifications. This machine plays an important role in many industries such as metal processing, construction, automobiles, and home appliances, because it can efficiently and accurately convert raw materials into sizes suitable for subsequent processing, thereby improving production efficiency and reducing costs. The pipe slitting machine is widely used in steel processing, construction, automobile manufacturing, home appliance production and other fields, and is one of the indispensable processing equipment in modern manufacturing. It can quickly adjust the cutting width according to production needs to meet the processing requirements of products of different specifications, greatly improving production efficiency and product quality. The pipe slitting machine is used to process steel pipes of different diameters, and is used to cut steel strips into steel strips and then roll them into pipes. For processing of different pipe diameters, it is usually necessary to adjust the interval of the cutter. In the prior art, the interval of the cutter requires the operator to spend a lot of time to disassemble, replace and adjust the cutter, and the replacement efficiency is low. Summary of the invention

[0003] The invention provides a pipe slitting machine, which solves the technical problem of low replacement efficiency when replacing cutters when processing steel pipes with different diameters in the pipe slitting machine in the related art.

[0004] The technical solution of the present invention is as follows:

[0005] A pipe slitting machine comprises a frame, an upper knife roller and a lower knife roller, wherein the upper knife roller and the lower knife roller are both rotatably arranged on the frame, and a cutting interval is formed between the upper knife roller and the lower knife roller for a steel strip to pass through and be cut into steel strips, and the upper knife roller and the lower knife roller each comprise

[0006] a knife shaft, the knife shaft being rotatably arranged on the frame,

[0007] The annular blade plate is slidably arranged on the blade shaft, and the annular blade plate of the upper blade roller and the annular blade plate of the lower blade roller are used for longitudinally shearing the steel strip, and the distance between two adjacent annular blade plates is a cutting distance.

[0008] An annular baffle, the annular baffle is slidably arranged on the knife shaft, a plurality of the annular baffles are arranged between two adjacent annular knife plates, and there is a partition distance between two adjacent annular baffles,

[0009] A movable pusher is radially slidably arranged on the knife shaft, and after moving, pushes two adjacent annular partitions away from each other, so that the cutting distance and the partitioning distance are increased.

[0010] As a further technical solution, the upper knife roller and the lower knife roller both include

[0011] A screw rod, the screw rod is rotatably arranged on the knife shaft, and the screw rod is parallel to the knife shaft,

[0012] A push piece, the push piece is movably arranged on the knife shaft and is threadedly connected to the screw rod, the push piece has a first inclined surface, the movable push piece has a second inclined surface, the first inclined surface abuts against the second inclined surface,

[0013] A first elastic member, wherein one end of the first elastic member acts on the moving push member, and the other end of the first elastic member acts on the knife shaft to provide a force for the moving push member to move away from the annular partition.

[0014] As a further technical solution, the two sides of the movable push member respectively have a first conical outer wall and a second conical outer wall, and the two adjacent annular partitions respectively have a first conical inner wall and a second conical inner wall, the first conical outer wall is slidably abutted against the first conical inner wall, and the second conical outer wall is slidably abutted against the second conical inner wall.

[0015] As a further technical solution, the upper knife roller and the lower knife roller both include

[0016] A second elastic member, one end of which acts on the knife shaft, and the other end of which acts on the annular knife plate at the end, providing a force for the plurality of annular knife plates to approach each other.

[0017] As a further technical solution, a locking assembly is also included, and the locking assembly is arranged on the frame, including

[0018] A card member, which is arranged on the knife shaft and has a plurality of card slots, and the arrangement direction of the plurality of card slots is parallel to the axial direction of the knife shaft,

[0019] A rotating member is slidably and rotatably arranged on the knife shaft, and has a plurality of clamping parts, the arrangement direction of the plurality of clamping parts is parallel to the axial direction of the knife shaft, the sliding direction of the rotating member is parallel to the axial direction of the knife shaft, and after the rotating member rotates, the clamping part is clamped into the clamping slot or cancels the clamping slot.

[0020] A plug is arranged at one end of the rotating member close to the annular blade, and is used to support the annular blade at the end.

[0021] As a further technical solution, the plug thread is arranged on the rotating member, and the plug has a nut portion.

[0022] As a further technical solution, the clamping portion and the clamping slot are both arc-shaped, and the clamping slot is a through slot, so that the clamping portion can enter the clamping slot from both sides.

[0023] As a further technical solution, it also includes

[0024] The first bevel gear is provided on the screw rod of the upper knife roller and the screw rod of the lower knife roller.

[0025] A second bevel gear is meshed with the first bevel gear on the upper knife roller and the first bevel gear on the lower knife roller.

[0026] As a further technical solution, the second bevel gear is rotatably and slidably arranged on the frame and has a screwing part.

[0027] As a further technical solution, the annular blade plate of the upper blade roller and the annular blade plate of the lower blade roller are staggered.

[0028] The working principle and beneficial effects of the present invention are:

[0029] In the present invention, the upper knife roller and the lower knife roller are composed of a knife shaft, an annular knife plate, an annular partition and a movable pusher. The knife shaft is fixed to the frame through a bearing seat, allowing the knife roller to rotate around the shaft. The annular knife plate is installed on the knife shaft and has a sharp edge for cutting the steel strip. A cutting interval is formed between the annular knife plates of the upper knife roller and the lower knife roller, and continuous cutting of the steel strip is achieved through relative rotation. The annular partition is located between adjacent annular knife plates to ensure that the cutting interval remains unchanged and that the width of the steel strip after cutting is consistent. The movable pusher is designed to slide radially along the knife shaft and move by driving. When the movable pusher is actuated, it can push the interval between two adjacent annular partitions, thereby changing the cutting interval and the partition interval, and achieving efficient and precise cutting of steel strips of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0032] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0033] Figure 3 for Figure 2 Middle A is a schematic diagram of a partially enlarged structure;

[0034] Figure 4 This is another perspective three-dimensional structural schematic diagram of the present invention;

[0035] Figure 5 for Figure 4 Middle B is a schematic diagram of a partially enlarged structure;

[0036] In the figure: frame 1, upper knife roller 2, knife shaft 201, annular knife plate 202, cutting interval 203, annular partition 204, partition interval 205, movable pusher 206, screw 207, pusher 208, first inclined surface 209, second inclined surface 210, first elastic member 211, first conical outer wall 212, second conical outer wall 213, first conical inner wall 214, second conical inner wall 215, second elastic member 216, lower knife roller 3, cutting interval 4, locking assembly 5, clamping member 501, clamping groove 502, rotating member 503, clamping part 504, head 505, nut part 506, first bevel gear 6, second bevel gear 7, screwing part 701. DETAILED DESCRIPTION

[0037] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0038] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0039] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0041] Reference Figure 1~Figure 5 , which is the first embodiment of the present invention, a pipe slitting machine is proposed, including a frame 1, an upper knife roller 2 and a lower knife roller 3, the upper knife roller 2 and the lower knife roller 3 are both rotatably arranged on the frame 1, a cutting interval 4 is formed between the upper knife roller 2 and the lower knife roller 3 for the steel strip to pass through and be cut into steel strips, the upper knife roller 2 and the lower knife roller 3 both include a knife shaft 201, the knife shaft 201 is rotatably arranged on the frame 1, an annular knife plate 202 is slidably arranged on the knife shaft 201, the annular knife plate 202 of the upper knife roller 2 and the annular knife plate of the lower knife roller 3 202 is used for longitudinal shearing of steel strips, a cutting distance 203 is between two adjacent annular blades 202, an annular partition 204 is slidably arranged on the blade shaft 201, a plurality of annular partitions 204 are arranged between two adjacent annular blades 202, a partition distance 205 is provided between two adjacent annular partitions 204, a moving pusher 206 is radially slidably arranged on the blade shaft 201, and after movement, pushes two adjacent annular partitions 204 away from each other, so that the cutting distance 203 and the partition distance 205 are increased.

[0042] In this embodiment, the frame 1 serves as the basic supporting structure of the entire machine, carrying the upper knife roller 2 and the lower knife roller 3 and other auxiliary components. The upper knife roller 2 and the lower knife roller 3 are composed of a knife shaft 201, an annular knife plate 202, an annular partition 204 and a movable pusher 206. The knife shaft 201 is fixed to the frame 1 through a bearing seat, allowing the knife roller to rotate around the axis. The annular knife plate 202 is mounted on the knife shaft 201 and has a sharp edge for cutting the steel strip. A cutting interval 4 is formed between the annular knife plates 202 of the upper knife roller 2 and the lower knife roller 3, and continuous cutting of the steel strip is achieved through relative rotation. The annular partition 204 is located between adjacent annular knife plates 202 to ensure that the cutting interval 203 remains unchanged and to ensure that the width of the steel strip after cutting is consistent. The movable pusher 206 is designed to slide radially along the knife shaft 201 and move by driving. When the movable pusher 206 moves, it can push the distance between two adjacent annular partitions 204, thereby changing the cutting distance 203 and the partition distance 205, and realizing efficient and precise cutting of steel bars of different widths.

[0043] Working principle: When it is necessary to adjust the width of the steel strip for longitudinal cutting into steel strips, the operator needs to drive the moving pusher 206 to move radially along the knife shaft 201, and push the two adjacent annular partitions 204 to increase the spacing, thereby increasing the distance between the adjacent annular blade plates 202. Therefore, it becomes easier to adjust the spacing of the cutter, and it can adapt to the processing of pipes of different diameters without complicated disassembly and assembly, thereby improving the adjustment efficiency. The increase in the cutting spacing 203 and the partition spacing 205 enables the pipe longitudinal shearing machine to adapt to the needs of wider or narrower steel strip cutting. During cutting, the upper knife roller 2 and the lower knife roller 3 rotate synchronously, and the steel strip passes through the cutting interval 4 and is cut into steel strips of predetermined width by the annular blade plate 202. The annular partition 204 ensures the positioning accuracy during the cutting process and avoids interference between adjacent steel strips.

[0044] In this embodiment, the parallelism and concentricity of the knife shaft 201 must be ensured during installation and maintenance to avoid eccentricity and vibration of the knife roller caused by improper installation. During this period, the lubrication of the knife shaft 201 must be checked regularly, the annular knife plate 202 and the annular partition 204 must be kept clean, and worn knives must be replaced in time to ensure cutting quality and the service life of the equipment.

[0045] Furthermore, the upper knife roller 2 and the lower knife roller 3 also include a screw rod 207, which is rotatably set on the knife shaft 201 and is parallel to the knife shaft 201. The push piece 208 is movably set on the knife shaft 201 and is threadedly connected to the screw rod 207. The push piece 208 has a first inclined surface 209, and the movable push piece 206 has a second inclined surface 210. The first inclined surface 209 abuts against the second inclined surface 210. One end of the first elastic member 211 acts on the movable push piece 206, and the other end acts on the knife shaft 201, providing a force for the movable push piece 206 to move away from the annular partition 204.

[0046] In this embodiment, in order to better adjust the spacing between the annular partitions 204, a screw rod 207, a push piece 208, a first inclined surface 209, a second inclined surface 210 and a first elastic member 211 are designed. Specifically, the screw rod 207 is installed on the knife shaft 201 and is parallel to the knife shaft. The rotation of the screw rod 207 can be converted into a linear motion of the push piece 208. The push piece 208 is threadedly connected to the screw rod 207. When the screw rod 207 rotates, the push piece 208 moves radially along the parallel knife shaft 201. The push piece 208 has a first inclined surface 209, which contacts the second inclined surface 210 on the moving push piece 206. When the push piece 208 moves, the contact between the first inclined surface 209 and the second inclined surface 210 generates a lateral force, which pushes the moving push piece 206 to move radially, thereby changing the cutting spacing 203 and the partition spacing 205 between the annular partitions 204. The first elastic member 211 can be selected as a spring, one end of which acts on the movable push member 206 and the other end is fixed on the knife shaft 201, providing a constant force to keep the movable push member 206 away from the annular partition 204 when there is no external force, thereby playing a resetting and pre-tightening role.

[0047] Working principle: When the operator rotates the screw 207, the push piece 208 threadedly connected thereto moves radially along the knife shaft 201. The first inclined surface 209 of the push piece 208 contacts the second inclined surface 210 of the mobile push piece 206, converting the linear motion of the push piece 208 into the radial motion of the mobile push piece 206, thereby adjusting the distance between the annular partitions 204. The first elastic member 211 ensures that when no adjustment is made, the mobile push piece 206 will not move accidentally due to external force, thereby maintaining the stability of the cutting spacing 203 and the partition spacing 205. The screw and push piece allow the operator to accurately adjust the cutting width through a simple rotation action, thereby improving production flexibility and efficiency. This embodiment achieves accurate and rapid adjustment of the cutting width of the pipe longitudinal shearing machine by introducing a screw and push piece drive system, thereby improving the automation level and production adaptability of the equipment.

[0048] Furthermore, the two sides of the movable push member 206 respectively have a first conical outer wall 212 and a second conical outer wall 213, and the two adjacent annular partitions 204 respectively have a first conical inner wall 214 and a second conical inner wall 215, the first conical outer wall 212 is in sliding contact with the first conical inner wall 214, and the second conical outer wall 213 is in sliding contact with the second conical inner wall 215.

[0049] In this embodiment, the guiding and contacting mode between the moving pusher 206 and the annular partition 204 is further refined, and the stability and precision in the adjustment process are improved by the conical structure. The two sides of the moving pusher 206 are respectively the first conical outer wall 212 and the second conical outer wall 213, that is, they are designed as conical structures, and their taper ensures that they can smoothly contact the annular partition 204 during radial movement. The inner and outer sides of the annular partition 204 are correspondingly designed as the first conical inner wall 214 and the second conical inner wall 215, that is, the conical structure matching the conical outer wall of the moving pusher 206, forming a sliding guide surface.

[0050] Working principle: When the moving pusher 206 moves radially along the blade shaft 201, its first tapered outer wall 212 and second tapered outer wall 213 are in sliding contact with the first tapered inner wall 214 and second tapered inner wall 215 of the adjacent annular partition 204. The tapered structure ensures the guiding and stability of the moving pusher 206 during radial movement, avoiding the reduction of cutting accuracy caused by lateral displacement. The tapered guide system allows the operator to accurately adjust the position of the moving pusher 206 by driving the screw 207 and the pusher 208, thereby changing the cutting spacing 203 and the partition spacing 205 between adjacent annular partitions 204, and realizing the cutting of steel bars of different widths.

[0051] In this embodiment, the conical guide system reduces the shaking of the moving pusher 206 during movement and improves the accuracy of cutting width adjustment by tightly fitting the conical outer wall and the inner wall. The guiding effect of the conical structure ensures the stability of the moving pusher 206 during the adjustment process and reduces cutting errors caused by improper operation or equipment vibration. Compared with flat contact, the conical contact surface can disperse stress, reduce wear, and extend the service life of the equipment. By introducing the conical guide system, the pipe longitudinal shearing machine not only improves the accuracy and stability of cutting width adjustment, but also optimizes the maintenance and service life of the equipment. It is an important technical improvement to improve production efficiency and product quality.

[0052] Furthermore, the upper knife roller 2 and the lower knife roller 3 also include a second elastic member 216. One end of the second elastic member 216 acts on the knife shaft 201, and the other end acts on the annular knife plate 202 at the end to provide a force for the annular knife plates 202 to move closer to each other.

[0053] In this embodiment, in order to ensure stability and accuracy during the cutting process, a second elastic member 216 is designed, and the second elastic member 216 can be a spring with a larger progress coefficient to ensure stability and prevent the annular blade plates 202 of the upper blade roller 2 and the lower blade roller 3 from shaking when cutting the steel strip.

[0054] One end of the second elastic member 216 is fixed on the knife shaft 201, and the other end is connected to the annular blade plate 202 at the end. In this way, the second elastic member 216 applies a force to all the annular blade plates 202 to approach each other so as to maintain close contact between the annular blade plates 202. The force provided by the second elastic member 216 ensures that the annular blade plates 202 remain close to each other when not affected by external forces, and even during the rotation and cutting process of the knife roller, the stable contact between the annular blade plates 202 can be maintained to avoid the separation of the blade plates due to vibration or impact, thereby ensuring the cutting quality. When the moving pusher 206 acts on the annular partition plate 204 to adjust the cutting spacing 203 and the partition spacing 205, the second elastic member 216 allows the annular blade plates 202 to move appropriately under the pre-tightening state, ensuring that the blade plates remain stable during the adjustment process without affecting the cutting accuracy. The second elastic member 216 ensures the stable contact of the annular blade plates 202 during the cutting process, reduces the gap between them, and improves the flatness and dimensional accuracy of the cutting edge.

[0055] In this embodiment, the presence of preload reduces the risk of unstable cutting caused by vibration or blade wear during high-speed operation and cutting, and extends the service life of the equipment. The dynamic adjustment characteristics of the second elastic member 216 simplify the process of adjusting the cutting width. The operator only needs to adjust the position of the annular partition 204 by moving the push member 206 to achieve the change of cutting width without the need for additional calibration of the gap between the annular blades 202. According to the use of the equipment and the degree of blade wear, the preload of the second elastic member 216 is adjusted in time to ensure that the contact force between the annular blades 202 is moderate and to avoid damage to the annular blades 202 due to excessive pressure. By introducing the preload system of the second elastic member 216, the pipe longitudinal shearing machine not only improves the stability and cutting quality of the cutting process, but also simplifies the maintenance and adjustment process of the equipment. It is a key technical improvement to improve production efficiency and equipment reliability.

[0056] Further, if Figure 5 As shown, it also includes a locking assembly 5, which is arranged on the frame 1 and includes a clamping member 501, which is arranged on the knife shaft 201 and has a plurality of clamping grooves 502, and the arrangement direction of the plurality of clamping grooves 502 is parallel to the axial direction of the knife shaft 201. A rotating member 503 is slidably and rotatably arranged on the knife shaft 201, and has a plurality of clamping parts 504, and the arrangement direction of the plurality of clamping parts 504 is parallel to the axial direction of the knife shaft 201. The sliding direction of the rotating member 503 is parallel to the axial direction of the knife shaft 201. After the rotating member 503 rotates, the clamping part 504 is clamped into the clamping groove 502 or cancels the clamping into the clamping groove 502. A top head 505 is arranged at one end of the rotating member 503 close to the annular knife plate 202, and the top head 505 is used to support the annular knife plate 202 at the end.

[0057] In this embodiment, a locking assembly 5 for locking the position of the annular blade plate 202 on the blade shaft 201 in a pipe slitting machine is described to ensure stability and safety after adjustment. Specifically, the clamping member 501 is fixed on the blade shaft 201, and has a plurality of clamping grooves 502 arranged parallel to the axial direction of the blade shaft 201, which are used to cooperate with the clamping portion 504 on the rotating member 503 to achieve position locking. The rotating member 503 is slidably and rotatably arranged on the blade shaft 201, and has a plurality of clamping portions 504 also arranged parallel to the axial direction of the blade shaft 201. The sliding direction of the rotating member 503 is parallel to the axial direction of the blade shaft 201, and its rotation can align or stagger the clamping portion 504 with the clamping groove 502 to achieve locking or unlocking. The head 505 is arranged at one end of the rotating member 503 close to the annular blade plate 202, and is used to support the annular blade plate 202 at the end in a locked state to ensure the stable position of the annular blade plate 202 during the cutting process.

[0058] Working principle: When the position of the annular blade 202 needs to be adjusted, the operator first rotates the rotating member 503 to make the clamping portion 504 staggered with the clamping slot 502 and release the locking state. After the adjustment is completed, the rotating member 503 is rotated again to align the clamping portion 504 with the clamping slot 502 and lock it in, so as to fix the position. The head 505 supports the annular blade 202 at the end in the locked state to ensure the stability of the blade during the cutting process, prevent the position from being offset due to vibration or external force, and ensure the cutting accuracy.

[0059] In this embodiment, the locking assembly 5 ensures the stability of the position of the annular blade 202 after adjustment, and prevents safety accidents caused by blade displacement during equipment operation. And through the cooperation of the clamp 501 and the rotating member 503, the operator can easily and quickly complete the adjustment and locking of the blade position without complicated tools or additional personnel assistance. The positioning function of the head 505 ensures the stability of the annular blade 202 during the cutting process, reduces the cutting error caused by blade displacement, and improves the cutting quality. By introducing the locking assembly 5, the pipe longitudinal shearing machine not only improves the safety of operation and the accuracy of cutting, but also simplifies the process of equipment adjustment, which is a key technical improvement to improve production efficiency and equipment stability.

[0060] Furthermore, the plug 505 is threadedly disposed on the rotating member 503 , and the plug 505 has a nut portion 506 .

[0061] In this embodiment, the design of the plug 505 is further refined, and it is set to a thread-adjustable form to achieve fine-tuning and tightening of the position of the annular blade plate 202. The plug 505 is connected to the rotating member 503 through a thread. This design allows the plug 505 to move axially on the rotating member 503 to fine-tune the distance between it and the annular blade plate 202. The end of the plug 505 is designed as a nut portion 506, which is usually provided with an external hexagonal, internal hexagonal or other type of wrench slots to facilitate tightening or loosening operations using tools such as wrenches. When it is necessary to fine-tune the position of the annular blade plate 202, the operator can use a tool such as a wrench to rotate the nut portion 506 of the plug 505 to move the plug 505 axially along the thread of the rotating member 503, thereby slightly changing the contact pressure between it and the annular blade plate 202, thereby achieving precise adjustment of the position of the blade plate. After the adjustment is completed, by tightening the nut portion 506 of the top head 505, it can be ensured that the top head 505 firmly supports the annular blade plate 202, so as to keep the blade plate stable during the cutting process and avoid positional deviation caused by vibration or external force.

[0062] In this embodiment, the threaded top head 505 allows the operator to make micron-level adjustments, which improves the accuracy of the position adjustment of the annular blade 202, thereby ensuring the cutting quality. By tightening the top head 505, the operator can ensure the stability of the annular blade 202 during the cutting process, prevent safety hazards caused by blade displacement, and improve the safety of equipment operation. The threaded top head 505 can be easily disassembled when replacement or maintenance is required, which simplifies the maintenance process and is also convenient for quick adjustment as needed in daily use.

[0063] Furthermore, the clamping portion 504 and the clamping slot 502 are both arc-shaped, and the clamping slot 502 is a through slot, so that the clamping portion 504 can enter the clamping slot 502 from both sides.

[0064] In this embodiment, the shape of the clamping portion 504 and the clamping slot 502 in the locking assembly 5 are both arc-shaped, and the clamping slot 502 is designed as a through slot to facilitate the entry and exit of the clamping portion 504 from both sides. The clamping portion 504 and the clamping slot 502 are both designed as arc-shaped profiles. This design can provide a larger contact area, increase the stability and reliability of the locking, and the arc-shaped edge helps to reduce friction and wear during the insertion and withdrawal process. The clamping slot 502 is designed as a through slot, which is not closed, but open from both sides. The purpose of this design is to allow the clamping portion 504 to easily enter or exit the clamping slot 502 from any side, which greatly simplifies the operation process of the locking assembly 5.

[0065] Working principle: When the clamping part 504 on the rotating member 503 is aligned with the clamping slot 502 on the clamping member 501, the clamping part 504 can slide into the clamping slot 502 along the arc track. Since the clamping slot 502 is a through slot, it can be entered from either side to achieve locking. When unlocking is required, the rotating member 503 is simply rotated to dislocate the clamping part 504 from the clamping slot 502, and the clamping part 504 can be easily withdrawn from the clamping slot 502. The unlocking process is simple and quick.

[0066] In this embodiment, the through-slot design makes the insertion and withdrawal of the clamping portion 504 more flexible, without the need for strict alignment, which simplifies the locking and unlocking operation process and improves the operating efficiency. The arc design reduces the friction between the clamping portion 504 and the clamping slot 502, reduces wear, and prolongs the service life of the locking assembly 5. The stable locking of the clamping portion 504 and the clamping slot 502 ensures that the position of the annular blade 202 is fixed during the operation of the equipment, avoiding safety problems caused by the displacement of the blade.

[0067] Furthermore, it also includes a first bevel gear 6, and the first bevel gear 6 is provided on the screw rod 207 of the upper knife roller 2 and the screw rod 207 of the lower knife roller 3, and the second bevel gear 7 is meshed with the first bevel gear 6 on the upper knife roller 2 and the first bevel gear 6 on the lower knife roller 3.

[0068] In this embodiment, in order to ensure the synchronous adjustment of the screw rods 207 of the upper knife roller 2 and the lower knife roller 3, two first bevel gears 6 are designed, which are respectively installed on the screw rods 207 of the upper knife roller 2 and the lower knife roller 3, and are used to transmit the rotational motion to the second bevel gear 7. The second bevel gear 7 is meshed with the first bevel gears 6 on the upper knife roller 2 and the lower knife roller 3. When one of the screw rods 207 rotates, the linkage of the first bevel gear 6 and the second bevel gear 7 ensures that the other screw rod 207 rotates synchronously, thereby realizing the synchronous adjustment of the upper knife roller 2 and the lower knife roller 3.

[0069] In this embodiment, when the operator rotates the screw rod 207 of the upper knife roller 2 or the lower knife roller 3, the first bevel gear 6 on the screw rod 207 rotates accordingly, driving the second bevel gear 7 meshing therewith to rotate. Since the second bevel gear 7 is meshed with the first bevel gear 6 on the other screw rod 207 at the same time, the other screw rod 207 will also rotate accordingly, realizing the synchronous adjustment of the two screw rods 207. Through gear transmission, the synchronization and accuracy of the upper knife roller 2 and the lower knife roller 3 during the adjustment process can be ensured, avoiding the deviation that may occur during separate adjustment, and ensuring the cutting quality. Through the gear linkage system, the operator only needs to adjust one screw rod 207 to achieve the simultaneous adjustment of the upper knife roller 2 and the lower knife roller 3, which greatly improves the adjustment efficiency. The synchronous adjustment mechanism ensures the synchronization of the upper and lower knife rollers during the adjustment process, avoids the cutting error caused by inconsistent adjustment, and improves the cutting accuracy. The gear linkage system simplifies the adjustment process, reduces the operation process, and improves the ease of use of the equipment.

[0070] Furthermore, the second bevel gear 7 is rotatably and slidably disposed on the frame 1 and has a screwing portion 701 .

[0071] In this embodiment, considering that the existence of the second bevel gear 7 will affect the rotation of the knife shaft 201 of the upper knife roller 2 and the lower knife roller 3, it is designed that the second bevel gear 7 can also be slidably arranged on the frame 1. After the adjustment of the screw rod 207 is completed by the second bevel gear 7 and the first bevel gear 6, the second bevel gear 7 is operated to slide and disengage from the first bevel gear 6 to ensure that the rotation of the knife shaft 201 will not be interfered and affected by the second bevel gear 7. A part of the second bevel gear 7 is designed as a screwing part 701, which is usually provided with an external hexagonal, internal hexagonal or other type of wrench slot, so as to control the axial movement using a tool such as a wrench.

[0072] Furthermore, the annular blade plate 202 of the upper blade roller 2 and the annular blade plate 202 of the lower blade roller 3 are arranged in a staggered manner.

[0073] In this embodiment, the annular knife plate 202 of the upper knife roller 2 is offset from the annular knife plate 202 of the lower knife roller 3, so that the annular knife plate 202 of the upper knife roller 2 is aligned with the other side of the annular knife plate 202 of the lower knife roller 3, thereby cooperating with each other to cut the steel strip longitudinally into steel strips.

[0074] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A pipe slitting machine, characterized in that: The invention comprises a frame (1), an upper knife roller (2) and a lower knife roller (3), wherein the upper knife roller (2) and the lower knife roller (3) are both rotatably arranged on the frame (1), and a cutting interval (4) is formed between the upper knife roller (2) and the lower knife roller (3) for a steel strip to pass through and be cut into steel strips, and the upper knife roller (2) and the lower knife roller (3) both comprise a knife shaft (201), the knife shaft (201) being rotatably disposed on the frame (1), an annular knife plate (202), the annular knife plate (202) being slidably disposed on the knife shaft (201), the annular knife plate (202) of the upper knife roller (2) and the annular knife plate (202) of the lower knife roller (3) being used for longitudinally shearing the steel strip, and a cutting interval (203) being provided between two adjacent annular knife plates (202), an annular baffle (204), the annular baffle (204) being slidably disposed on the knife shaft (201), a plurality of the annular baffles (204) being disposed between two adjacent annular knife plates (202), and a partition spacing (205) being provided between two adjacent annular baffles (204), A moving pusher (206), the moving pusher (206) being radially slidably disposed on the knife shaft (201), and pushing two adjacent annular partitions (204) away from each other after movement, thereby increasing the cutting distance (203) and the partition distance (205); A locking assembly (5), the locking assembly (5) being arranged on the frame (1), comprising A clamping member (501), the clamping member (501) being arranged on the knife shaft (201) and having a plurality of clamping slots (502), wherein the arrangement direction of the plurality of clamping slots (502) is parallel to the axial direction of the knife shaft (201), A rotating member (503), the rotating member (503) is slidably and rotatably arranged on the knife shaft (201), and has a plurality of clamping portions (504), the arrangement direction of the plurality of clamping portions (504) is parallel to the axial direction of the knife shaft (201), the sliding direction of the rotating member (503) is parallel to the axial direction of the knife shaft (201), and after the rotating member (503) rotates, the clamping portion (504) is clamped into the clamping slot (502) or is no longer clamped into the clamping slot (502), A push head (505), the push head (505) being arranged at one end of the rotating member (503) close to the annular blade (202), the push head (505) being used to support the annular blade (202) at the end; The top head (505) is threadedly arranged on the rotating member (503), the top head (505) has a nut portion (506), the clamping portion (504) and the clamping slot (502) are both arc-shaped, and the clamping slot (502) is a through slot for the clamping portion (504) to enter the clamping slot (502) from both sides.

2. A pipe slitting machine according to claim 1, characterized in that: The upper knife roller (2) and the lower knife roller (3) both further include a screw rod (207), the screw rod (207) being rotatably disposed on the knife shaft (201), the screw rod (207) being parallel to the knife shaft (201), A push member (208), the push member (208) is movably disposed on the knife shaft (201) and is threadedly connected to the screw rod (207), the push member (208) has a first inclined surface (209), the movable push member (206) has a second inclined surface (210), the first inclined surface (209) abuts against the second inclined surface (210), A first elastic member (211), wherein one end of the first elastic member (211) acts on the movable pushing member (206), and the other end of the first elastic member (211) acts on the knife shaft (201), providing a force for moving the movable pushing member (206) away from the annular partition (204).

3. The pipe slitting machine according to claim 2, characterized in that: The two sides of the movable pusher (206) are respectively provided with a first conical outer wall (212) and a second conical outer wall (213); the two adjacent annular partitions (204) are respectively provided with a first conical inner wall (214) and a second conical inner wall (215); the first conical outer wall (212) is in sliding contact with the first conical inner wall (214); and the second conical outer wall (213) is in sliding contact with the second conical inner wall (215).

4. A pipe slitting machine according to claim 2, characterized in that: The upper knife roller (2) and the lower knife roller (3) both further include A second elastic member (216), wherein one end of the second elastic member (216) acts on the knife shaft (201), and the other end acts on the annular knife plate (202) at the end, providing a force for bringing the plurality of annular knife plates (202) closer to each other.

5. The pipe slitting machine according to claim 1, characterized in that: Also includes a first bevel gear (6), the first bevel gear (6) being arranged on the screw rod (207) of the upper knife roller (2) and the screw rod (207) of the lower knife roller (3), A second bevel gear (7), the second bevel gear (7) being meshed with both the first bevel gear (6) on the upper knife roller (2) and the first bevel gear (6) on the lower knife roller (3).

6. A pipe slitting machine according to claim 5, characterized in that: The second bevel gear (7) is rotatably and slidably arranged on the frame (1), and has a screwing portion (701).

7. The pipe slitting machine according to claim 5, characterized in that: The annular knife plate (202) of the upper knife roller (2) and the annular knife plate (202) of the lower knife roller (3) are arranged in a staggered manner.

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