Fixed-length fly cutter cutting machine

Abstract

The utility model discloses a fixed-length fly-cutter cutting machine, and relates to the technical field of cutting equipment. An inlet end sleeve, a cutting device and an outlet end sleeve are sequentially installed on the bottom frame in the advancing direction of the corrugated pipe, and the inlet end sleeve, the outlet end sleeve and the corrugated pipe are coaxially arranged. A length metering through hole is formed in the sleeve wall of the inlet end sleeve, a length metering device is installed above the inlet end sleeve and comprises a length metering wheel and an encoder matched with the length metering wheel, and the length metering wheel extends into the inlet end sleeve through the length metering through hole to abut against the corrugated pipe; the cutting device comprises a cutting fly cutter in driving connection with a cutting power piece, the cutting power piece is controlled by the encoder, the cutting power piece drives the cutting fly cutter to rotate to form a circular cutting face, and the cutting face is perpendicular to the axis of the inlet end sleeve. According to the plastic corrugated pipe cutting device, fixed-length stable cutting can be conducted on a plastic corrugated pipe, fixed-length continuous cutting of different lengths at different speeds is achieved, the consistency of the cutting length is ensured, and the cutting error is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting equipment, in particular to a fixed-length flying knife cutting machine. Background Art

[0002] In today's technological landscape, pipe cutting equipment typically relies on either discontinuous or compensatory cutting processes. However, both methods have their limitations. Due to its operating principle, discontinuous cutting makes it difficult to ensure consistent cut lengths and is prone to dimensional deviations. While compensatory cutting aims to improve accuracy through adjustments, it requires frequent recalibration to meet varying production speeds, increasing operational complexity and inevitably introducing errors in cut lengths.

[0003] Existing pipe cutting machines, particularly those designed specifically for plastic corrugated pipe, often have basic designs and lack advanced functional modules. For example, the lack of an integrated length-counting system forces users to rely on manual measurement to determine the length of each pipe segment and then perform calculations. This process is not only time-consuming and labor-intensive, but also prone to errors due to human error. More critically, these traditional cutting machines lack the flexibility to adjust to the changing production pace and quickly and continuously complete precise cutting of varying length specifications based on varying production speeds. This undoubtedly limits the overall efficiency of the production line and the consistency of product quality. Therefore, improving existing technologies and enhancing cutting accuracy and automation levels are crucial to enhancing the competitiveness of the pipe processing industry. Utility Model Content

[0004] In view of this, the technical problem to be solved by the utility model is: to provide a fixed-length flying knife cutting machine that can stably cut plastic corrugated pipes at a fixed length, realize fixed-length continuous cutting of different lengths at different speeds, ensure the consistency of cutting length, and reduce cutting errors.

[0005] In order to solve the above technical problems, the technical solution of the utility model is:

[0006] A fixed-length flying knife cutting machine comprises a base frame; an inlet sleeve, a cutting device, and an outlet sleeve are sequentially mounted on the base frame along the travel direction of the corrugated pipe, the inner diameter of the outlet sleeve being no smaller than the inner diameter of the inlet sleeve, and the inlet sleeve, the outlet sleeve, and the corrugated pipe are all coaxially arranged;

[0007] A length measuring through hole is provided on the wall of the entry sleeve, and a length measuring device is installed above the entry sleeve. The length measuring device includes a length measuring wheel and an encoder adapted therewith. The length measuring wheel extends into the interior of the entry sleeve through the length measuring through hole and abuts against the bellows.

[0008] The cutting device includes a cutting knife drivingly connected to a cutting power member, wherein the cutting power member is installed on the outside of the outlet sleeve and is controlled by the encoder. The cutting power member drives the cutting knife to rotate to form a circular cutting surface, and the cutting surface is perpendicular to the axis of the inlet sleeve.

[0009] Preferably, the cutting device includes a support mechanism, the support mechanism includes two stacked support sleeves sequentially arranged along the travel direction of the corrugated tube, and the stacked support sleeves are coaxially arranged with the entry sleeve;

[0010] One of the stacked support sleeves is arranged close to the entry sleeve, and the other stacked support sleeve is arranged close to the exit sleeve. There is a distance between the two stacked support sleeves to form a cutting gap for the cutting knife to rotate through.

[0011] Preferably, the stacked support sleeve comprises two support half-sleeves arranged vertically opposite to each other, and the two support half-sleeves are buckled together to form a complete stacked support sleeve;

[0012] The supporting half-cylinder located at the bottom is fixedly installed on the base frame, and the supporting half-cylinder located at the top is rotatably installed on the base frame through a rotating seat.

[0013] Preferably, a vertically arranged wall panel is mounted on the base frame, the rotating seat is rotatably mounted on the wall panel and is in the same plane as the wall panel, and the wall panel is parallel to the cutting surface;

[0014] An electronic lock is installed between the rotating seat and the wall panels, and the cutting power component is installed on one of the wall panels.

[0015] Preferably, the rotating seat is a fan-shaped structure, and the electronic lock includes a travel switch and a limit block adapted thereto, the travel switch is mounted on the wall panel, and the limit block is mounted on the rotating seat and arranged close to its arc-shaped edge; when the two supporting half-cylinders are buckled together to form a complete stacked supporting sleeve, the limit block abuts against the travel switch.

[0016] Preferably, a locking handle adapted to the wall panel is installed on the rotating seat.

[0017] Preferably, a shield is installed on the base frame, and the shield is arranged on the outside of the cutting device, one end of the inlet sleeve extends into the inside of the shield, and one end of the outlet sleeve extends out of the shield and is located outside the shield.

[0018] Preferably, the length measuring device includes a length measuring mounting seat installed on the protective cover, the length measuring mounting seat is hinged to one end of the rocker arm, the other end of the rocker arm is rotatably connected to the length measuring wheel, and the length measuring wheel is synchronously connected to the encoder installed on the rocker arm.

[0019] Preferably, a control box is installed on the shield, the encoder is connected to the control box, and the control box is electrically connected to the cutting power component.

[0020] Preferably, the inlet sleeve and the outlet sleeve have the same structure, both comprising a cylinder and a trumpet opening connected to the cylinder, and the trumpet opening faces a side close to the bellows along the traveling direction of the bellows.

[0021] After adopting the above technical solution, the beneficial effects of the utility model are:

[0022] Since the present application includes a base frame, an entry sleeve, a cutting device and an exit sleeve are sequentially installed on the base frame along the direction of travel of the corrugated tube. The inner diameter of the exit sleeve is not smaller than the inner diameter of the entry sleeve, and the entry sleeve, the exit sleeve and the corrugated tube are all coaxially arranged; the corrugated tube enters the interior of the present application from the entry sleeve, and after being cut by the cutting device, the cut corrugated tube is discharged from the exit sleeve. In the present application, the entry sleeve and the exit sleeve are coaxially arranged, which ensures the accuracy of the corrugated tube when being cut.

[0023] A length measuring through hole is provided on the wall of the entry sleeve, and a length measuring device is installed above the entry sleeve. The length measuring device includes a length measuring wheel and an encoder matched therewith. The length measuring wheel extends into the interior of the entry sleeve through the length measuring through hole and abuts against the bellows. In the process of the bellows moving through the entry sleeve, the bellows drives the length measuring wheel to rotate, driving the encoder to send a pulse signal, and the travel length of the bellows is calculated by the rotation period of the length measuring wheel. Because the length measuring wheel and the bellows are abutted, when the travel speed of the bellows changes, the rotation speed of the length measuring wheel will also change accordingly. Therefore, the length measuring action of the bellows can be realized at different speeds, which expands the scope of application, ensures the consistency of cutting length, and reduces cutting errors.

[0024] The cutting device includes a cutting knife connected to a cutting power member, which is installed on the outside of the outlet sleeve. The cutting power member is controlled by an encoder. The cutting power member drives the cutting knife to rotate to form a circular cutting surface, and the cutting surface is perpendicular to the axis of the inlet sleeve. When the travel length of the corrugated tube meets the set conditions, the cutting power member starts, driving the cutting knife to rotate one circle. During the rotation of the knife, the knife cuts the corrugated tube to complete the cutting action. When the corrugated tube needs to be cut, the cutting surface is perpendicular to the axis of the inlet sleeve, that is, the cutting surface is perpendicular to the axis of the corrugated tube, which can ensure that the cutting of the corrugated tube is perpendicular to its axis, prevent the occurrence of side cutting, and ensure that the cut surface of the corrugated tube is a plane perpendicular to its axis, thereby reducing the generation of waste segments, reducing production costs, and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 This is a structural diagram of a fixed-length flying knife cutting machine according to an embodiment of the present utility model;

[0027] Figure 2 yes Figure 1 Left view of;

[0028] Figure 3 This is a schematic structural diagram of the input sleeve, cutting device, and length measuring device in an embodiment of the present utility model;

[0029] Figure 4 yes Figure 3 Left view of;

[0030] Figure 5 This is a schematic structural diagram of a stacked support sleeve in an embodiment of the present invention;

[0031] Figure 6 yes Figure 5 AA section view;

[0032] In the picture:

[0033] 1. Chassis; 11. Protective cover;

[0034] 2. Entry sleeve; 21. Length-measuring through hole; 22. Cylinder body; 23. Horn opening;

[0035] 3. Cutting device; 31. Cutting power unit; 32. Cutting knife; 33. Cutting surface; 34. Support mechanism; 341. Stacked support sleeve; 342. Support half-sleeve; 35. Rotating seat; 36. Wall panel; 37. Electronic lock; 371. Travel switch; 372. Limit block; 38. Locking handle;

[0036] 4. Outlet sleeve;

[0037] 5. Length measuring device; 51. Length measuring wheel; 52. Length measuring mounting seat; 53. Pendulum rod;

[0038] 6. Control box. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] like Figures 1 to 6 As shown in the figures, the present invention includes a base frame 1; an entry sleeve 2, a cutting device 3 and an exit sleeve 4 are sequentially mounted on the base frame 1 along the travel direction of the corrugated tube. The inner diameter of the exit sleeve 4 is not less than the inner diameter of the entry sleeve 2. The entry sleeve 2, the exit sleeve 4 and the corrugated tube are all coaxially arranged. In the present application, the driving force of the corrugated tube comes from an external forming machine. After the forming machine forms the corrugated tube, it pushes the corrugated tube to continue to move forward and enter the entry sleeve 2. The corrugated tube enters the interior of the present application from the entry sleeve 2. After being cut by the cutting device 3, the cut corrugated tube is discharged from the exit sleeve 4. In the present application, the entry sleeve 2 and the exit sleeve 4 are coaxially arranged to ensure the accuracy of the corrugated tube when it is cut.

[0041] A length measuring hole 21 is provided on the wall of the entry sleeve 2, and a length measuring device 5 is installed above the entry sleeve 2. The length measuring device 5 includes a length measuring wheel 51 and an encoder adapted thereto (blocked in the figure). The length measuring wheel 51 extends into the interior of the entry sleeve 2 through the length measuring hole 21 and abuts against the bellows; in the process of the bellows moving through the entry sleeve 2, the bellows will drive the length measuring wheel 51 to rotate, thereby causing the connected encoder to generate a pulse signal. The travel length of the bellows can be calculated according to the rotation period of the length measuring wheel 51. Since the length measuring wheel 51 is in direct contact with the bellows, when the travel speed of the bellows changes, the rotation speed of the length measuring wheel 51 will also be adjusted accordingly, thereby realizing accurate measurement of the length of the bellows under different speed conditions, which not only broadens the application range of the length measuring device 5, but also ensures the consistency of the cutting length and reduces errors in the cutting process.

[0042] The cutting device 3 includes a cutting knife 32 driven by a cutting power member 31. The cutting power member 31 is installed on the outside of the outlet sleeve 4. The cutting power member 31 is controlled by an encoder. The cutting power member 31 drives the cutting knife 32 to rotate to form a circular cutting surface 33. The cutting surface 33 is perpendicular to the axis of the inlet sleeve 2.

[0043] When the travel length of the corrugated tube reaches the preset standard, the cutting device 3 will start. At this time, the cutting power part 31 drives the cutting knife 32 to rotate one circle. During this rotation process, the cutting knife 32 will accurately cut the corrugated tube, thereby completing the entire cutting process. In order to ensure the cutting quality, whenever the corrugated tube needs to be cut, the cutting position always remains perpendicular to the axis of the inlet sleeve 2, which means that the cutting operation is performed strictly perpendicular to the axial direction of the corrugated tube, effectively avoiding the occurrence of bevel cutting. This not only ensures that the cross-section of the corrugated tube after cutting is completely perpendicular to its axial direction, but also helps to reduce unnecessary material waste, reduce manufacturing costs and improve the overall quality of the product.

[0044] In the present application, the cutting device 3 includes a support mechanism 34, which includes two stacked support sleeves 341 arranged in sequence along the traveling direction of the corrugated tube, and the stacked support sleeves 341 are coaxially arranged with the entry sleeve 2; one stacked support sleeve 341 is arranged close to the entry sleeve 2, and the other stacked support sleeve 341 is arranged close to the exit sleeve 4, and there is a spacing between the two stacked support sleeves 341 to form a cutting gap for the cutting knife 32 to rotate through.

[0045] After the corrugated tube comes out from the inside of the inlet sleeve 2, it first passes through the inside of two stacked support sleeves 341 when entering the outlet sleeve 4. During this process, if the travel length of the corrugated tube reaches the preset standard, it will be cut from the cutting gap by the cutting knife 32.

[0046] The stacked support sleeve 341 includes two support half-cylinders 342 arranged vertically opposite to each other, and the two support half-cylinders 342 are interlocked to form a complete stacked support sleeve 341; the support half-cylinder 342 located at the bottom is fixedly installed on the base frame 1, and the support half-cylinder 342 located at the top is rotatably installed on the base frame 1 through the rotating seat 35.

[0047] Preferably, a vertically arranged wall panel 36 is installed on the base frame 1, and the rotating seat 35 is rotatably installed on the wall panel 36 and is in the same plane with it, and the wall panel 36 is parallel to the cutting surface 33; an electronic lock 37 is installed between the rotating seat 35 and the wall panel 36, and the cutting power part 31 is installed on one of the wall panels 36.

[0048] Among them, the rotating seat 35 is a fan-shaped structure, and the electronic lock 37 includes a limit switch 371 and a limit block 372 adapted thereto. The limit switch 371 is installed on the wall panel 36, and the limit block 372 is installed on the rotating seat 35 and is arranged close to its arc-shaped edge; when the two supporting half-cylinders 342 are buckled together to form a complete stacked support sleeve 341, the limit block 372 abuts against the limit switch 371. When the two abut against each other, it means that the stacked support sleeve 341 is completely formed, indicating that cutting can be performed.

[0049] A locking handle 38 that is compatible with the wall panel 36 is installed on the rotating seat 35, which can fix the rotating seat 35 and the wall panel 36 to improve stability; at the same time, the upper support half cylinder 342 can be fixed through the rotating seat 35, so that the stacked support sleeve 341 is completely formed.

[0050] In the present application, a protective cover 11 is installed on the base frame 1, and the protective cover 11 is arranged on the outside of the cutting device 3. One end of the input sleeve 2 extends into the interior of the protective cover 11, and one end of the output sleeve 4 extends out of the protective cover 11 and is located on the outside thereof. The protective cover 11 protects the internal cutting device 3, which can not only prevent it from dust, but also protect the surrounding staff.

[0051] The length measuring device 5 includes a length measuring mounting base 52 mounted on the shield 11. The length measuring mounting base 52 is hingedly connected to one end of a rocker 53. The other end of the rocker 53 is rotatably connected to a length measuring wheel 51. The length measuring wheel 51 is synchronously connected to an encoder mounted on the rocker 53. Under the action of its gravity, the length measuring wheel 51 can fall into the length measuring through-hole 21. When the inner diameter of the inlet sleeve 2 increases to accommodate bellows with different inner diameters, the length measuring wheel 51 cooperates with the rocker 53, and can be driven by the rocker 53 to rotate upward around the hinged connection between the length measuring mounting base 52 and the rocker 53, and then continue to fall into the interior of the length measuring through-hole 21, thereby meeting the requirements for measuring the length of bellows with different inner diameters.

[0052] A control box 6 is installed on the shield 11 , the encoder is connected to the control box 6 , and the control box 6 is electrically connected to the cutting power component 31 .

[0053] The inlet sleeve 2 and the outlet sleeve 4 have the same structure, both including a cylinder 22 and a trumpet opening 23 connected to the cylinder 22 . The trumpet opening 23 faces the side close to the bellows along the traveling direction of the bellows.

[0054] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fixed-length flying knife cutting machine, comprising a chassis; characterized in that: An inlet sleeve, a cutting device and an outlet sleeve are sequentially mounted on the base frame along the travel direction of the corrugated pipe. The inner diameter of the outlet sleeve is not less than that of the inlet sleeve. The inlet sleeve, the outlet sleeve and the corrugated pipe are coaxially arranged. A length measuring through hole is provided on the wall of the entry sleeve, and a length measuring device is installed above the entry sleeve. The length measuring device includes a length measuring wheel and an encoder adapted therewith. The length measuring wheel extends into the interior of the entry sleeve through the length measuring through hole and abuts against the bellows. The cutting device includes a cutting knife drivingly connected to a cutting power member, wherein the cutting power member is installed on the outside of the outlet sleeve and is controlled by the encoder. The cutting power member drives the cutting knife to rotate to form a circular cutting surface, and the cutting surface is perpendicular to the axis of the inlet sleeve.

2. The fixed-length flying knife cutting machine according to claim 1, characterized in that: The cutting device includes a support mechanism, which includes two stacked support sleeves arranged in sequence along the travel direction of the corrugated tube, and the stacked support sleeves are coaxially arranged with the entry sleeve; One of the stacked support sleeves is arranged close to the entry sleeve, and the other stacked support sleeve is arranged close to the exit sleeve. There is a distance between the two stacked support sleeves to form a cutting gap for the cutting knife to rotate through.

3. The fixed-length flying knife cutting machine according to claim 2, characterized in that: The stacked support sleeve comprises two supporting half-sleeves arranged vertically opposite to each other, and the two supporting half-sleeves are buckled together to form a complete stacked support sleeve; The supporting half-cylinder located at the bottom is fixedly installed on the base frame, and the supporting half-cylinder located at the top is rotatably installed on the base frame through a rotating seat.

4. The fixed-length flying knife cutting machine according to claim 3, characterized in that: A vertically arranged wall panel is mounted on the base frame, the rotating seat is rotatably mounted on the wall panel and is in the same plane as the wall panel, and the wall panel is parallel to the cutting surface; An electronic lock is installed between the rotating seat and the wall panels, and the cutting power component is installed on one of the wall panels.

5. The fixed-length flying knife cutting machine according to claim 4, characterized in that: The rotating seat is a fan-shaped structure, and the electronic lock includes a travel switch and a limit block adapted thereto. The travel switch is mounted on the wall panel, and the limit block is mounted on the rotating seat and arranged close to its arc-shaped edge. When the two supporting half-cylinders are buckled together to form a complete stacked supporting sleeve, the limit block abuts against the travel switch.

6. The fixed-length flying knife cutting machine according to claim 4, characterized in that: A locking handle adapted to the wall panel is installed on the rotating seat.

7. The fixed-length flying knife cutting machine according to claim 1, characterized in that: A shield is installed on the base frame and is arranged on the outside of the cutting device. One end of the inlet sleeve extends into the inside of the shield, and one end of the outlet sleeve extends out of the shield and is located outside the shield.

8. The fixed-length flying knife cutting machine according to claim 7, characterized in that: The length measuring device includes a length measuring mounting seat installed on the shield, the length measuring mounting seat is hinged to one end of the rocker arm, the other end of the rocker arm is rotationally connected to the length measuring wheel, and the length measuring wheel is synchronously connected to the encoder installed on the rocker arm.

9. The fixed-length flying knife cutting machine according to claim 7, characterized in that: A control box is installed on the shield, the encoder is connected to the control box, and the control box is electrically connected to the cutting power component.

10. The fixed-length flying knife cutting machine according to claim 1, characterized in that: The inlet sleeve and the outlet sleeve have the same structure, both comprising a cylinder and a trumpet opening communicated with the cylinder, wherein the trumpet opening faces a side close to the bellows along the traveling direction of the bellows.

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