A CM double-wall corrugated pipe automatic cutting equipment

Abstract

A CM double-wall corrugated pipe automatic cutting device relates to the technical field of double-wall corrugated pipe processing, comprising a frame, a fixing device installed on the frame, a small-diameter pipe cutting device and a large-diameter pipe cutting device; the fixing device comprises a fixing clamping plate slidably installed on the frame; the small-diameter pipe cutting device comprises a cutting knife 1 slidably installed on the frame; the large-diameter pipe cutting device comprises a supporting frame fixedly installed on the frame, a gear ring rotatably installed on the supporting frame, a mounting frame fixedly installed on the gear ring, a movable knife frame slidably and elastically installed on the mounting frame, a cutting knife 2 slidably installed on the movable knife frame and provided with an adjustment hole, an adjustment block slidably and elastically installed on the movable knife frame and intermittently entering the adjustment hole, a limiting plate 1 intermittently limiting the movable knife frame, a limiting plate 2 intermittently driving the adjusting block to move, an adjustment mechanism for driving the cutting knife 2 to move, and a driving mechanism for driving the limiting plate 1 and the limiting plate 2 to move.

Description

Technical Field

[0001] The invention relates to the technical field of double-wall corrugated pipe processing, and in particular to a CM double-wall corrugated pipe automatic cutting device. Background Art

[0002] With the continuous advancement of urbanization and the vigorous development of various infrastructure construction, CM double-wall corrugated pipe, as a pipe with excellent tolerance, elasticity and flexibility, has been widely used in drainage, sewage, communication cable protection and other fields. At present, in the production process of CM double-wall corrugated pipe, the cutting process is to cut the formed double-wall corrugated pipe into the required size.

[0003] There are devices in the prior art that can cut double-wall corrugated pipes. For example, the utility model patent with publication number CN214684543U discloses a double-wall corrugated pipe cutting machine, including a circular cutting mechanism and a bearing mechanism. The bearing mechanism is arranged on both sides of the circular cutting mechanism. The circular cutting mechanism includes a frame, an annular guide rail fixedly arranged in the frame, and a traveling mechanism arranged on the annular guide rail. The traveling mechanism includes a sliding seat slidably arranged on the annular guide rail, a guide hole is opened on the sliding seat, a guide column is arranged in the guide hole, a mounting seat is arranged at the bottom end of the guide column, a cutting device is arranged on the mounting seat, a traveling wheel is arranged at the bottom of the mounting, a compression spring is sleeved on the guide column, and the two ends of the compression spring act on the sliding seat and the mounting seat respectively; the traveling mechanism moves along the annular guide rail to drive the cutting device on the mounting seat to perform annular cutting on the double-wall corrugated pipe.

[0004] Although the above utility model can be applied to cutting double-walled corrugated pipes of various specifications, it is still necessary to manually adjust the position of the mounting seat to leave space for the double-walled corrugated pipe when placing the double-armed corrugated pipe, which not only increases the labor intensity of the workers but also reduces the production efficiency. At the same time, the above utility model cannot automatically adjust the contact position between the cutting device and the double-walled corrugated pipe according to the different specifications of the double-walled corrugated pipe, which makes the cutting device inflexible and has a small scope of application.

[0005] Therefore, it is necessary to invent an automatic cutting equipment for CM double-wall corrugated pipes with high automation and wide application range to reduce the labor intensity of workers and improve the versatility of the equipment. Summary of the invention

[0006] In view of the above problems, the present invention proposes an automatic cutting device for CM double-wall corrugated pipes, and the technical solution used is:

[0007] A CM double-wall corrugated pipe automatic cutting device comprises a frame, a fixing device mounted on the frame, a small-diameter pipe cutting device and a large-diameter pipe cutting device; the fixing device comprises a fixing clamp plate slidably mounted on the frame; the small-diameter pipe cutting device comprises a cutting knife slidably mounted on the frame;

[0008] The large-diameter pipe cutting device includes a support frame fixedly mounted on the frame, a gear ring rotatably mounted on the support frame, a mounting frame fixedly mounted on the gear ring, a movable knife frame slidably and elastically mounted on the mounting frame, a cutting knife 2 slidably mounted on the movable knife frame and provided with an adjustment hole, an adjustment block slidably and elastically mounted on the movable knife frame and intermittently entering the adjustment hole, a limit plate 1 intermittently limiting the movable knife frame, a limit plate 2 intermittently driving the adjustment block to move, an adjustment mechanism for driving the cutting knife 2 to move, and a driving mechanism for driving the limit plates 1 and 2 to move.

[0009] Furthermore, the fixed clamping plate is driven to move by a pushing cylinder fixedly mounted on the frame.

[0010] Furthermore, the cutting blade 1 is driven to move by a pushing cylinder 2 fixedly mounted on the frame.

[0011] Furthermore, a limit pin is fixedly installed on the movable tool holder; a limit slide is provided on the limit plate corresponding to the limit pin; the limit slide includes an inclined portion and a vertical portion, and the bottom end of the inclined portion is connected to the top end of the vertical portion.

[0012] Furthermore, a limiting slope block capable of intermittently pushing the adjustment block outward is fixedly mounted on the second limiting plate.

[0013] Furthermore, the driving mechanism includes a bidirectional screw horizontally installed on the frame, two sliding frames driven by the bidirectional screw and slidably installed on the frame, a lifting screw vertically installed on the frame, and a lifting shaft slidably installed on the frame and driven to move by the lifting screw; the sliding frame is slidably installed on the lifting shaft; and the limit plate 1 and the limit plate 2 are vertically slidably installed on the two sliding frames respectively.

[0014] Furthermore, the large-diameter pipe cutting device also includes a rotating motor fixedly mounted on the support frame, and a transition gear coaxially fixedly mounted on the output end of the rotating motor and meshing with the ring gear.

[0015] Furthermore, it also includes a propulsion device; the propulsion device includes a rotating shaft slidably and rotatably mounted on the frame, and a dial wheel coaxially and fixedly mounted on the rotating shaft.

[0016] Furthermore, the propulsion device also includes a moving cylinder fixedly mounted on the frame, and a connecting plate fixedly mounted on the telescopic end of the moving cylinder; the rotating shaft is rotatably mounted on the connecting plate.

[0017] Furthermore, the propulsion device also includes a propulsion motor fixedly mounted on the frame, and the rotating shaft is driven to rotate by the propulsion motor.

[0018] Since the present invention adopts the above technical solution, the present invention has the following advantages:

[0019] 1. The present invention realizes the automatic cutting of small-diameter and large-diameter double-wall corrugated pipes through the coordinated design of a fixing device, a small-diameter cutting device and a large-diameter cutting device. A straight-up and straight-down cutting method is adopted for small-diameter double-wall corrugated pipes, and a circumferential cutting method is adopted for large-diameter double-wall corrugated pipes. The present invention has a wide range of applications and a high degree of automation. No manual participation is required in the working process, which reduces the labor intensity of workers and improves production efficiency.

[0020] 2. The large diameter pipe cutting device of the present invention can adjust the position of the cutting knife 2 on the movable knife holder according to the different wall thicknesses of the large diameter double wall corrugated pipes, thereby adapting to the cutting work of large diameter double wall corrugated pipes with different wall thicknesses, thereby improving the versatility of the equipment.

[0021] 3. The propulsion device of the present invention is provided with a thumbwheel that can engage with the corrugations of the double-walled corrugated pipe, so that the double-walled corrugated pipe can be accurately moved according to the corrugation spacing each time, thereby accurately controlling the cutting point of the double-walled corrugated pipe to be the depression between the two corrugations rather than the corrugations themselves, thereby ensuring the stable quality of the double-walled corrugated pipe after cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1-Figure 5 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 6 It is a schematic diagram of the assembly structure of the frame, the fixing device and the small-diameter pipe cutting device of the present invention.

[0024] Figure 7 It is a schematic diagram of the assembly structure of the fixing device and the small-diameter pipe cutting device of the present invention.

[0025] Figure 8 It is a schematic structural diagram of the fixing device of the present invention.

[0026] Figure 9-10 It is a schematic structural diagram of the large diameter pipe cutting device of the present invention.

[0027] Figure 11-Figure 12 The figure is a schematic diagram of the assembly structure of the mounting frame, the movable knife frame, the second cutting knife and the adjusting block in the large diameter pipe cutting device of the present invention.

[0028] Fig.13 It is a schematic diagram of the exploded structure of the movable knife holder, the second cutting knife and the adjusting block in the large diameter pipe cutting device of the present invention.

[0029] Figure 14-17 It is a partial structural schematic diagram of the large diameter pipe cutting device of the present invention.

[0030] Figure 18-Figure 19It is a schematic diagram of the structure of the driving mechanism in the large diameter pipe cutting device of the present invention.

[0031] Fig. 20 It is a schematic diagram of the assembly structure of the propulsion device and the frame of the present invention.

[0032] Fig.21 It is a schematic structural diagram of the propulsion device of the present invention.

[0033] Fig. 22 It is a schematic diagram of the connection between the control terminal and the electrical components of the present invention.

[0034] Figure Number:

[0035] 1- rack;

[0036] 2-fixing device; 201-pushing cylinder 1; 202-fixing splint;

[0037] 3- small diameter pipe cutting device; 301- push cylinder 2; 302- cutting knife 1;

[0038] 4-propulsion device; 401-propulsion motor; 402-driving gear; 403-rotating shaft; 404-driven gear; 405-push wheel 1; 406-push wheel 2; 407-adjusting cylinder; 408-connecting plate;

[0039] 5-large diameter pipe cutting device; 501-support frame (5011-annular slide rail); 502-gear ring; 503-rotating motor; 504-transition gear; 505-mounting frame; 506-movable tool holder (5061-limiting pin); 507-cutting knife 2 (5071-adjusting hole); 508-adjusting block (5081-limiting plate); 509-limiting plate 1 (5091-limiting slide groove); 510-limiting plate 2 (5101-limiting slope block; 5102-sliding block); 511-adjusting mechanism (5111-adjusting cylinder; 5112-fixed cylinder); 512-driving mechanism (5121-bidirectional screw; 5122-sliding frame; 5123-lifting screw; 5124-lifting shaft);

[0040] 6-Control terminal. DETAILED DESCRIPTION

[0041] The technical solution of the present invention is further specifically described below by way of embodiments and in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0042] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "in", "out", "front", "back", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. Example

[0043] This embodiment discloses a CM double-wall corrugated pipe automatic cutting device, such as Figure 1-Figure 5 and Fig. 22 As shown, it includes a frame 1, a fixing device 2, a small-diameter pipe cutting device 3, a propulsion device 4, a large-diameter pipe cutting device 5 and a control end 6; the fixing device 2, the small-diameter pipe cutting device 3, the propulsion device 4 and the large-diameter pipe cutting device 5 are all installed on the frame 1.

[0044] like Figure 5-Figure 8 As shown, the fixing device 2 includes a push cylinder 201 and a fixed clamping plate 202; the fixed clamping plate 202 is provided with two groups arranged along the axial direction of the double-wall corrugated pipe, and each group includes two upper and lower fixed clamping plates 202; the fixed clamping plate 202 has an arc-shaped cross-section and is vertically slidably mounted on the frame 1 through a connecting rod; each fixed clamping plate 202 corresponds to a push cylinder 201, and the push cylinder 201 is vertically fixedly mounted on the frame 1, and the telescopic end is fixedly connected to the corresponding fixed clamping plate 202;

[0045] The small-diameter pipe cutting device 3 includes a push cylinder 2 301 and a cutting knife 1 302; the cutting knife 1 302 is arranged between two sets of fixed clamping plates 202, and is vertically slidably mounted on the frame 1 through a connecting rod; the push cylinder 2 301 is vertically fixedly mounted on the frame 1, and the telescopic end is fixedly connected to the cutting knife 1 302; the fixed clamping plate 202 located below the cutting knife 1 302 is lengthened, and a cutting avoidance groove is provided on the fixed clamping plate 202 corresponding to the cutting knife 1 302;

[0046] Specifically, the pushing cylinder 201 drives the fixed clamp 202 to rise and fall, and the fixed clamps 202 in the same group move away from or close to each other to clamp the double-wall corrugated pipe; the pushing cylinder 2 301 drives the cutting knife 302 to rise and fall to directly cut the small-diameter double-wall corrugated pipe clamped by the fixed clamp 202; the cutting knife 302 will drop as a whole into the cutting avoidance groove during cutting, thereby cutting off the small-diameter double-wall corrugated pipe.

[0047] like Figure 9-Figure 19As shown, the large-diameter pipe cutting device 5 includes a support frame 501, a gear ring 502, a rotating motor 503, a transition gear 504, a mounting frame 505, a movable knife frame 506, a cutting knife 507, an adjusting block 508, a limit plate 1 509, a limit plate 2 510, an adjusting mechanism 511 and a driving mechanism 512; the support frame 501 is in a circular shape as a whole, and its left and right ends are fixedly mounted on the frame 1 through connecting plates, and an annular slide rail 5011 is provided at the center; the gear ring 502 is coaxially rotatably mounted on the support frame 501, and the double-wall corrugated pipe passes through the annular slide rail 5011 and the inside of the gear ring 502; the rotating motor 503 is fixedly mounted on the support frame 501, and its output end is coaxially fixedly connected with the transition gear 504, and the transition gear 504 is meshed with the gear ring 502;

[0048] The mounting frame 505 is fixedly mounted on the gear ring 502 and is slidably connected to the annular slide rail 5011; the movable knife holder 506 is radially slidably mounted on the mounting frame 505 along the gear ring 502, and is elastically connected to the mounting frame 505 through a tension spring; the second cutting knife 507 is radially slidably mounted on the movable knife holder 506 along the gear ring 502; a limiting pin 5061 is fixedly mounted on one side surface of the movable knife holder 506, and an adjusting block 508 is slidably mounted on the other side surface; the adjusting block 508 is elastically connected to the movable knife holder 506 through a compression spring, and two limiting plates 5081 are fixedly mounted on the outermost end of the adjusting block 508; a plurality of adjusting holes 5071 are arranged in a straight line on the second cutting knife 507; the inner end of the adjusting block 508 can intermittently enter the adjusting hole 5071;

[0049] The driving mechanism 512 includes a bidirectional lead screw 5121, a sliding frame 5122, a lifting lead screw 5123 and a lifting shaft 5124; the bidirectional lead screw 5121 is horizontally mounted on the frame 1, and the sliding frames 5122 are threadedly mounted on the front and rear halves of the bidirectional lead screw 5121, and the two sliding frames 5122 are horizontally slidably mounted on the frame 1, and the bidirectional lead screw 5121 can drive the two sliding frames 5122 to move toward each other; the lifting lead screw 5123 is vertically mounted on the frame 1; the lifting shaft 5124 is horizontally arranged, and the middle part thereof is vertically slidably mounted on the frame 1 and is threadedly connected to the lifting lead screw 5123; the two sliding frames 5122 are horizontally slidably mounted on the front and rear halves of the lifting shaft 5124 respectively; the limit plate 1 509 and the limit plate 2 510 are vertically slidably mounted on the two sliding frames 5122 respectively;

[0050] The limiting plate 509 is provided with a limiting groove 5091 corresponding to the limiting pin 5061; the limiting groove 5091 includes an inclined portion and a vertical portion, and the bottom end of the inclined portion is connected to the top end of the vertical portion; when the limiting pin 5061 moves downward along the inclined portion, the limiting pin 5061 drives the movable tool holder 506 to move outward and gradually away from the double-walled corrugated tube inside the gear ring 502;

[0051] The limiting plate 5081 corresponding to the adjusting block 508 on the limiting plate 510 is fixedly installed with two limiting slope blocks 5101, and the limiting slope block 5101 is located directly below the corresponding limiting plate 5081, and when the limiting slope block 5101 moves upward, it can push the corresponding limiting plate 5081 outward to make the adjusting block 508 disengage from the adjusting hole 5071 where it is located; a sliding block 5102 is horizontally slidably installed on the limiting plate 510; the adjusting mechanism 511 includes an adjusting cylinder 5111 and a fixed cylinder 5112, the adjusting cylinder 5111 is fixedly installed on the limiting plate 510, and its telescopic end is fixedly connected to the sliding block 5102; the fixed cylinder 5112 is fixedly installed on the sliding block 5102, and its telescopic end intermittently extends into the adjusting hole 5071 of the cutting knife 507; the telescopic ends of the adjusting cylinder 5111 and the fixed cylinder 5112 are perpendicular to each other;

[0052] Specifically, the rotating motor 503 drives the transition gear 504 to rotate, the transition gear 504 drives the gear ring 502 to rotate, the mounting frame 505 rotates with the gear ring 502, and drives the movable knife frame 506 and the second cutting knife 507 to rotate around the double-wall corrugated pipe; the bidirectional lead screw 5121 drives the two sliding frames 5122 to move toward each other, and the limit plate 1 507 and the limit plate 2 510 move toward each other accordingly; the lifting lead screw 5123 drives the lifting shaft 5124 to rise and fall, and the limit plate 1 507 and the limit plate 2 510 rise and fall synchronously accordingly;

[0053] The adjusting cylinder 5111 drives the sliding block 5102 to move, and the fixed cylinder 5112 moves with the sliding block 5102, so that the telescopic end of the fixed cylinder 5112 is aligned with different adjusting holes 5071; after the telescopic end of the fixed cylinder 5112 extends into the adjusting hole 5071, the adjusting cylinder 5111 can drive the cutting knife 2 507 to move in the movable knife holder 506.

[0054] like Figure 20-21 As shown, the propulsion device 4 includes a propulsion motor 401, a driving gear 402, a rotating shaft 403, a driven gear 404, a thumbwheel 1 405, a thumbwheel 2 406, a moving cylinder 407 and a connecting plate 408; two rotating shafts 403 are provided, both of which are vertically slidable and rotatably mounted on the frame 1; thumbwheel 1 405, thumbwheel 2 406 and a driven gear 404 are coaxially fixedly mounted on each rotating shaft 403 in sequence from top to bottom; the two driven gears 404 are meshed with each other; the driving gear 402 is rotatably mounted on the frame 1, and the driving gear 402 is meshed with one of the driven gears 404; the propulsion motor 401 is fixedly mounted on the frame 1, and the output end is coaxially fixedly connected with the driving gear 402; the moving cylinder 407 is vertically fixedly mounted on the frame 1, and the telescopic end is vertically upward; the connecting plate 408 is horizontally fixedly mounted on the telescopic end of the moving cylinder 407, and the bottom ends of the two rotating shafts 403 are both rotatably connected with the connecting plate 408;

[0055] The specifications of the thumbwheel 1 405 and the thumbwheel 2 406 are different, and they are respectively suitable for large-diameter double-wall corrugated pipes and small-diameter double-wall corrugated pipes. Taking the thumbwheel 1 405 as an example, the thumbwheel 1 405 can mesh with the corrugations of the large-diameter double-wall corrugated pipe. When the thumbwheel 1 405 rotates, the gears can move the corrugations on the large-diameter double-wall corrugated pipe, so that the large-diameter double-wall corrugated pipe moves. Each time the thumbwheel is moved, the double-wall corrugated pipe moves forward by a distance of the corrugation width. Multiple movements can accurately ensure that the cutting position is the depression between the corrugations.

[0056] Specifically, the moving cylinder 407 can drive the connecting plate 408 to rise and fall, and the two rotating shafts 403 rise and fall accordingly, so that the dial wheel 1 405 or the dial wheel 2 406 moves to the left and right sides of the double-walled corrugated tube; the propulsion motor 401 drives the driving gear 402 to rotate, and the driving gear 402 drives the driven gear 404 meshing with it to rotate, and the two driven gears 404 rotate synchronously to drive the two rotating shafts 403 to rotate synchronously, so that the dial wheel 1 405 or the dial wheel 2 406 drives the double-walled corrugated tube.

[0057] In this embodiment, the pushing cylinder 1 201, the pushing cylinder 2 301, the moving cylinder 407, the adjusting cylinder 5111 and the fixed cylinder 5112 all adopt servo electric cylinders; the propulsion motor 401 and the rotating motor 503 all adopt servo motors; the bidirectional screw 5121 and the lifting screw 5123 all adopt servo screws.

[0058] like Fig. 22 As shown, the control end 6 includes a main controller, an interactive switch, an information transmission module, a storage module and a power module, and the main controller is electrically connected to the interactive switch, the information transmission module, the storage module, the power module, the push cylinder 1 201, the push cylinder 2 301, the propulsion motor 401, the movable cylinder 407, the rotating motor 503, the adjustment cylinder 5111, the fixed cylinder 5112, the bidirectional screw 5121, and the lifting screw 5123; the main controller is used to control the operation of the entire automated cutting equipment; the interactive switch is used to control the opening and closing of each electrical component; the information transmission module is used for information transmission between the main controller and each electrical component; the power module is used to provide a stable power supply for the control end 6; and the storage module is used to store the operation information data of the entire automated cutting equipment.

[0059] The working principle of this embodiment is as follows:

[0060] After the moving cylinder 407 is started, it drives the connecting plate 408 to move up and down, and selects the dial wheel 1 405 or the dial wheel 2 406 according to the diameter of the double-walled corrugated pipe; the pushing cylinder 1 201 located below is started to drive the corresponding fixed clamping plate 202 to move, and the position of the fixed clamping plate 202 located below is adjusted according to the diameter of the double-walled corrugated pipe; the double-walled corrugated pipe is placed on the fixed clamping plate 202 located below by an external traction device, and the propulsion motor 401 is started to drive the gear 402 to rotate, and the two rotating shafts 403 rotates synchronously driven by the driven gear 404, and the dial wheel 1 405 or the dial wheel 2 406 pushes the double-walled corrugated tube forward; when the cutting point on the double-walled corrugated tube (the depression between the two corrugations) moves to the corresponding cutting knife position (the small diameter corresponds to the cutting knife 1 302, and the large diameter corresponds to the cutting knife 2 507), the push cylinder 1 201 located above will start, so that the corresponding fixed clamp 202 clamps the double-walled corrugated tube, and the double-walled corrugated tube will no longer move, ready for cutting.

[0061] 1. Cutting of small diameter double-wall corrugated pipes:

[0062] After the cutting point of the small-diameter double-wall corrugated pipe moves to the position directly below the cutting knife 302, the pushing cylinder 201 is started to drive the cutting knife 302 to move downward, and the cutting knife 302 is lowered into the cutting avoidance groove, and the small-diameter double-wall corrugated pipe is cut off; then the pushing cylinder 1 201 located above drives the corresponding fixed clamping plate 202 to move upward, and the propulsion motor 401 is started again, continuing to push the small-diameter double-wall corrugated pipe forward, so that the next cutting point moves to the position directly below the cutting knife 302, and cutting is performed again.

[0063] 2. Cutting of large diameter double-wall corrugated pipes:

[0064] In the initial state, if Fig.14 As shown, the limiting pin 5061 is located in the starting section of the vertical portion of the limiting slide slot 5091, the tension spring is stretched, and the movable tool holder 506 is limited to an outer position. At this time, the limiting slope block 5101 is located directly below the limiting plate 5081, and the adjustment block 508 is located in a certain adjustment hole 5071, and the cutting knife 507 is relatively fixed to the movable tool holder 506;

[0065] After the cutting point of the large-diameter double-wall corrugated pipe moves to be flush with the second cutting knife 507, the lifting screw 5023 is started, the lifting shaft 5124 descends and drives the two sliding racks 5122 to descend, so that the limit plate 1 509 and the limit plate 2 510 descend, and the limit pin shaft 5061 disengages from the vertical part of the limit slide groove 5091 and moves inward along the inclined part under the reset action of the tension spring, and the movable knife rack 506 moves inward accordingly, and the second cutting knife 507 moves inward and pierces the large-diameter double-wall corrugated pipe; then the bidirectional screw 5121 drives the two The sliding frames 5122 move away from each other, the limiting plate 1 509 and the limiting plate 2 510 move away from each other, and the limiting pin 5061 is separated from the limiting slide groove 5091; then the rotating motor 503 is started, the gear ring 502 drives the mounting frame 505 to rotate around the large-diameter double-wall corrugated pipe, and the cutting knife 2 507 rotates accordingly and performs circumferential cutting on the large-diameter double-wall corrugated pipe (in the process of the cutting knife 2 507 rotating, the restoring effect of the tension spring will make the cutting head of the cutting knife 2 507 always close to the large-diameter double-wall corrugated pipe to ensure a good cutting effect);

[0066] After the cutting is completed, the mounting frame 505 returns to its original position, the rotating motor 503 is turned off, the bidirectional lead screw 5121 drives the two sliding frames 5122 to approach each other, the limit pin 5061 enters the inclined part of the limit slide groove 5091, the lifting lead screw 5123 drives the lifting shaft 5124 to rise, the limit plate 1 509 and the limit plate 2 510 rise, the limit pin 5061 slides downward along the inclined part and gradually enters the starting section of the vertical part, the tension spring is stretched, the movable knife holder 506 is limited in the outer position, and the cutting knife 2 507 disengages from the large diameter double-wall corrugated pipe; then the pushing cylinder 1 201 located above drives the corresponding fixed splint 202 to move upward, the propulsion motor 401 is started again, and the large diameter double-wall corrugated pipe continues to be moved forward, so that the next cutting point is moved to be flush with the cutting knife 2 507, and cutting is performed again.

[0067] 3. Adjustment of cutting knife 2 507:

[0068] The wall thickness of large-diameter double-wall corrugated pipes with different ring stiffness levels is also different. By adjusting the position of the second cutting knife 507 on the movable knife holder 506, the force of the second cutting knife 507 piercing the large-diameter double-wall corrugated pipe can be changed to adapt to large-diameter double-wall corrugated pipes with different wall thicknesses.

[0069] In the present embodiment, the cutting knife 2 507 is adjusted in the initial state. First, the lifting screw 5123 is started, and the lifting shaft 5124 drives the limit plate 1 509 and the limit plate 2 510 to move upward. During this process, the limit pin shaft 5061 moves downward in the vertical portion of the limit slide groove 5091, and the limit slope block 5101 moves upward and pushes the limit plate 5081 outward, thereby driving the adjustment block 508 to move outward and disengage from the original adjustment hole 5071, the compression spring is stretched, and at the same time, the telescopic end of the fixed cylinder 5112 is flush with the adjustment hole 5071; then the adjustment cylinder 5111 drives the sliding block 5102 to move, so that the telescopic end of the fixed cylinder 5112 is aligned with the outermost adjustment hole 5071. The adjusting cylinder 5111 drives the sliding block 5102 to move again, thereby driving the second cutting knife 507 to move in the movable tool holder 506, so that the appropriate adjusting hole 5071 is aligned with the adjusting block 508; then the telescopic end of the fixed cylinder 5112 retracts, and the lifting screw 5123 drives the lifting shaft 5124 to descend, so that the limiting ramp block 5101 is separated from the sliding block 5102, and the compression spring drives the adjusting block 508 to extend into the aligned adjusting hole 5071, and the second cutting knife 507 is fixed relative to the movable tool holder 506 again, and the limiting pin shaft 5061 returns to the starting section of the vertical part of the limiting slide groove 5091;

[0070] It should be noted that only the telescopic end of the fixing cylinder 5112 can enter the outermost adjustment hole 5071 on the cutting knife 507, and the adjustment block 508 cannot enter. That is, the outermost adjustment hole 5071 is only used for the fixing cylinder 5112 to drive the cutting knife 507 to move, and is not used for the fixing function of the adjustment block 508.

Claims

1. A CM double-wall corrugated pipe automatic cutting equipment, characterized in that: The invention comprises a frame (1), a fixing device (2), a small-diameter pipe cutting device (3), and a large-diameter pipe cutting device (5) mounted on the frame (1); the fixing device (2) comprises a fixing clamp (202) slidably mounted on the frame (1); the small-diameter pipe cutting device (3) comprises a cutting knife (302) slidably mounted on the frame (1); The large-diameter pipe cutting device (5) comprises a support frame (501) fixedly mounted on the frame (1), a gear ring (502) rotatably mounted on the support frame (501), a mounting frame (505) fixedly mounted on the gear ring (502), a movable knife frame (506) slidably and elastically mounted on the mounting frame (505), a second cutting knife (507) slidably mounted on the movable knife frame (506) and provided with an adjustment hole (5071), an adjustment block (508) slidably and elastically mounted on the movable knife frame (506) and intermittently entering the adjustment hole (5071), a first limiting plate (509) intermittently limiting the movable knife frame (506), a second limiting plate (510) intermittently driving the adjustment block (508) to move, an adjustment mechanism (511) for driving the second cutting knife (507) to move, and a driving mechanism (512) for driving the first limiting plate (509) and the second limiting plate (510) to move; A limit pin (5061) is fixedly mounted on the movable tool holder (506); the limit plate 1 (509) is provided with a limit slide groove (5091) corresponding to the limit pin (5061); the limit slide groove (5091) comprises an inclined portion and a vertical portion, and the bottom end of the inclined portion is connected to the top end of the vertical portion; A limiting slope block (5101) capable of intermittently pushing the adjustment block (508) outwards is fixedly mounted on the second limiting plate (510); The driving mechanism (512) comprises a bidirectional lead screw (5121) mounted horizontally on a frame (1), two sliding frames (5122) driven to move by the bidirectional lead screw (5121) and slidably mounted on the frame (1), a lifting lead screw (5123) mounted vertically on the frame (1), and a lifting shaft (5124) slidably mounted on the frame (1) and driven to move by the lifting lead screw (5123); the sliding frame (5122) is slidably mounted on the lifting shaft (5124); and a first limit plate (509) and a second limit plate (510) are respectively vertically slidably mounted on the two sliding frames (5122).

2. According to claim 1, a CM double-wall corrugated pipe automatic cutting equipment is characterized in that: The fixed clamping plate (202) is driven to move by a push cylinder 1 (201) fixedly mounted on the frame (1).

3. According to claim 1, the CM double-wall corrugated pipe automatic cutting equipment is characterized in that: The cutting blade 1 (302) is driven to move by a push cylinder 2 (301) fixedly mounted on the frame (1).

4. According to claim 1, the CM double-wall corrugated pipe automatic cutting equipment is characterized in that: The large-diameter pipe cutting device (5) further comprises a rotating motor (503) fixedly mounted on the support frame (501), and a transition gear (504) coaxially fixedly mounted on the output end of the rotating motor (503) and meshing with the ring gear (502).

5. The CM double-wall corrugated pipe automatic cutting equipment according to claim 1 is characterized in that: It also includes a propulsion device (4); the propulsion device (4) includes a rotating shaft (403) slidably and rotatably mounted on the frame (1), and a thumbwheel coaxially fixedly mounted on the rotating shaft (403) and capable of meshing with the corrugations of the double-wall corrugated pipe.

6. The CM double-wall corrugated pipe automatic cutting equipment according to claim 5 is characterized in that: The propulsion device (4) further comprises a movable cylinder (407) fixedly mounted on the frame (1), and a connecting plate (408) fixedly mounted on the telescopic end of the movable cylinder (407); the rotating shaft (403) is rotatably mounted on the connecting plate (408).

7. The CM double-wall corrugated pipe automatic cutting equipment according to claim 5 is characterized in that: The propulsion device (4) further comprises a propulsion motor (401) fixedly mounted on the frame (1), and the rotating shaft (403) is driven to rotate by the propulsion motor (401).

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