A general-purpose flying knife cutting machine
By adding a speed reducer and a temperature-sensing blade heating assembly to the flying knife cutting machine, the problems of insufficient cutting torque and uneven cutting surface in the existing technology have been solved, enabling cutting of greater thickness and more efficient material adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO EXTRU MASCH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-03
AI Technical Summary
Existing fly knife cutting machines use motors to drive the blades, which prevents the increase of cutting torque and cutting thickness, resulting in uneven cutting surfaces and difficulty in cutting various materials, thus affecting work efficiency.
A speed reducer and a temperature-sensing blade heating assembly are added to the flying knife cutting machine. The speed reducer increases the cutting torque, and the temperature-sensing blade heating assembly controls the blade temperature to meet the cutting needs of different materials and thicknesses.
It improves the flatness of the cut surface, increases the cuttable thickness, enhances cutting efficiency and adaptability, and avoids damage to the equipment caused by excessive temperature.
Smart Images

Figure CN224446123U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cutting plastic pipes and profiles, specifically a universal flying knife cutting machine. Background Technology
[0002] With rapid economic development, the application of new plastic pipes in construction and other fields has been increasing year by year, and the number of companies producing plastic pipes has also increased. After processing, plastic pipes need to be cut according to requirements, hence the need for cutting machines. Current cutting machines, such as the flying knife cutting machine disclosed in patent application number 201721692054.4, have the following problems: 1. The blade drive is directly driven by a motor, which makes it impossible to increase the cutting torque of the flying knife, and ultimately cannot increase the thickness that can be cut, thus failing to improve the problem of uneven cut surfaces and rough cross-sections of pipes and profiles; 2. During the initial cutting process, the blade is at room temperature, so it cannot easily cut various materials, ultimately affecting the cutting efficiency. Therefore, improvements are needed. Utility Model Content
[0003] The purpose of this utility model is to provide a universal flying knife cutting machine to solve the problems mentioned in the background art, where existing cutting machines directly use motor drive for blade driving, which results in the inability to increase the cutting torque of the flying knife, ultimately preventing the increase of the cuttable thickness and failing to improve the uneven cut surface and rough cross-section of pipes and profiles; at the same time, during the initial cutting process, the blade is at room temperature, which makes it difficult to cut various materials, ultimately affecting the cutting efficiency.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a universal flying knife cutting machine, comprising a cutting chamber and a rotating blade for cutting pipes or profiles on a clamp. A clamping assembly for clamping the pipes or profiles is provided behind the cutting chamber. A main motor is provided on the left side of the cutting chamber, and the output end of the main motor is connected to the input end of a reducer. The output end of the reducer is inserted into the cutting chamber and connected to a flying knife holder. The blade is fixed on the side of the flying knife holder. A temperature-measuring blade heating assembly is provided on the right side of the cutting chamber, aligned with the initial stop position of the blade. The temperature-measuring blade heating assembly is used to heat the surface of the blade. A controller electrically connected to the temperature-measuring blade heating assembly and used to control the operation of the temperature-measuring blade heating assembly is also provided on the left side of the cutting chamber. The controller is electrically connected to the main motor and the reducer.
[0005] Preferably, to simplify the structure, the temperature measuring blade heating assembly includes a heat insulation sleeve, a heat-conducting plate base, a heating plate, and a temperature sensor. The heat-conducting plate base contains a heating plate electrically connected to the controller. One side of the heat-conducting plate base is connected to the right side of the cutting chamber through the heat insulation sleeve. The heat insulation sleeve contains a temperature sensor fixed on the heat-conducting plate base, and the temperature sensor is electrically connected to the controller.
[0006] Preferably, to facilitate the replacement or maintenance of the blade later, a maintenance cover is fixed to the right side of the cutting chamber by one or more locking screws, and the blade can be exposed when the maintenance cover is opened.
[0007] Preferably, to facilitate the disassembly and clamping of the cut pipe later, the clamping assembly includes two lower U-shaped positioning clamps located behind the cutting chamber and an upper positioning clamp group that cooperates with the two lower U-shaped positioning clamps. The two lower U-shaped positioning clamps are distributed left and right inside the cutting chamber, and there is a gap between the two lower U-shaped positioning clamps as the cutting area of the blade. A notch is provided at the rear of the cutting chamber, and the upper positioning clamp group is hinged to the outside of the notch. The upper positioning clamp group includes a clamping cover. The lower part of the clamping cover is hinged to the outside of the rear of the cutting chamber. A locking assembly that locks with the cutting chamber is provided on the upper part of the clamping cover. Two upper "n"-shaped positioning clamps are provided inside the clamping cover, each cooperating with the lower U-shaped positioning clamps. The corresponding lower U-shaped positioning clamp and the upper "n"-shaped positioning clamp are used to clamp the pipe or profile.
[0008] Preferably, the locking assembly includes a locking base, a wrench, a locking hook, and a locking ring. The locking hook is fixed outside the cutting chamber, the locking base is fixed on the clamping cover, one end of the wrench is hinged to the locking base via a hinge shaft one, and the wrench is also hinged to one end of the locking ring via a hinge shaft two. The other end of the locking ring is detachably fastened to the locking hook.
[0009] As a preferred option, for ease of operation, the end of the wrench away from the locking base is provided with a non-slip operating handle.
[0010] To clamp the pipe, a silicone anti-slip layer one is provided on the inner side of the lower U-shaped positioning clamp, and a silicone anti-slip layer two is provided on the inner side of the upper "n"-shaped positioning clamp.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This structure, by adding a reducer between the main motor and the fly knife holder on the basis of the existing fly knife cutting machine, can further improve the problems of uneven cut surface and rough cross-section when cutting pipes and profiles. Moreover, adding a reducer can also enhance the cutting torque of the fly knife and increase the thickness that can be cut.
[0013] 2. In addition, this structure adds a temperature-sensing blade heating component near the blade in the cutting chamber to control the temperature of the heated blade, thereby adapting to the cutting of different plastic products and different thicknesses of plastic products, and also avoiding excessive temperature from affecting the service life of the equipment. Attached Figure Description
[0014] Figure 1 This is a top view of a general-purpose flying knife cutting machine in Embodiment 1;
[0015] Figure 2 for Figure 1 A cross-sectional schematic diagram of AA in the middle;
[0016] Figure 3 for Figure 2 A cross-sectional view of BB;
[0017] Figure 4 This is a schematic diagram of the right side of a general-purpose flying knife cutting machine in Example 1;
[0018] Figure 5 This is a schematic diagram of the heating assembly for the temperature measuring blade.
[0019] Figure 6 for Figure 5 A cross-sectional view of CC.
[0020] Figure 7 This is a cross-sectional schematic diagram of the cutting chamber in Example 2.
[0021] In the diagram: 1. Cutting chamber; 2. Blade; 3. Clamp assembly; 4. Main motor; 5. Reducer; 6. Flying knife holder; 7. Temperature measuring blade heating assembly; 7. Heat insulation sleeve; 701. Heat-conducting plate base; 702. Heating plate; 703. Temperature sensor; 704. Controller; 8. Locking screw; 9. Maintenance cover; 10. Lower U-shaped positioning clamp; 11. Upper positioning clamp assembly; 12. Notch; 13. Clamping cover; 121. Locking assembly; 123. Upper "n"-shaped positioning clamp; 124. Locking base; 1231. Wrench; 1232. Locking hook; 1233. Locking ring; 1234. Anti-slip operating handle; 1235. Silicone anti-slip layer one; 111. Silicone anti-slip layer two; 1241. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0024] Example 1
[0025] Please see Figures 1-6 As shown, this embodiment discloses a universal flying knife cutting machine, including a cutting chamber 1 and a rotating blade 2 for cutting pipes or profiles on a clamp. A clamping assembly 3 for clamping the pipes or profiles is provided behind the cutting chamber 1. A main motor 4 is provided on the left side of the cutting chamber 1. The output end of the main motor 4 is connected to the input end of a reducer 5. The output end of the reducer 5 is inserted into the cutting chamber 1 and connected to a flying knife holder 6. The blade 2 is fixed on the side of the flying knife holder 6. A temperature-measuring blade heating assembly 7 is provided on the right side of the cutting chamber 1, aligned with the initial stop position of the blade 2. The temperature-measuring blade heating assembly 7 is used to heat the surface of the blade 2. A controller 8 is also provided on the left side of the cutting chamber 1, electrically connected to the temperature-measuring blade heating assembly 7 and used to control the operation of the temperature-measuring blade heating assembly 7. The controller 8 is electrically connected to the main motor 4 and the reducer 5.
[0026] Preferably, to simplify the structure, the temperature-measuring blade heating assembly 7 includes a heat insulation sleeve 701, a heat-conducting plate base 702, a heating plate 703, and a temperature sensor 704. The heat-conducting plate base 702 houses the heating plate 703, which is electrically connected to the controller 8. One side of the heat-conducting plate base 702 is connected to the right side of the cutting chamber 1 through the heat insulation sleeve 701. The heat insulation sleeve 701 houses the temperature sensor 704, which is fixed to the heat-conducting plate base 702 and is electrically connected to the controller 8.
[0027] Preferably, in order to facilitate the replacement or maintenance of the blade later, a maintenance cover plate 10 is fixed on the right side of the cutting chamber 1 by one or more locking screws 9, and the blade 2 can be exposed when the maintenance cover plate 10 is opened.
[0028] Preferably, to facilitate the disassembly and clamping of the cut pipe laterally, the clamping assembly 3 includes two lower U-shaped positioning clamps 11 located behind the cutting chamber 1 and an upper positioning clamp group 12 that cooperates with the two lower U-shaped positioning clamps 11. The two lower U-shaped positioning clamps 11 are distributed left and right in the cutting chamber 1, and there is a gap between the two lower U-shaped positioning clamps 11 as the cutting area of the blade 2. A notch 13 is provided at the rear of the cutting chamber 1, and the upper positioning clamp group 12 is hinged to the notch 13. In addition, the upper positioning clamping assembly 12 includes a clamping cover 121. The lower part of the clamping cover 121 is hinged to the outer side of the cutting chamber 1 behind by a hinge 122. A locking assembly 123 that locks with the cutting chamber 1 is provided on the upper part of the clamping cover 121. Two upper "n"-shaped positioning clamps 124 are provided inside the clamping cover 121, which respectively cooperate with the lower U-shaped positioning clamp 11. The corresponding lower U-shaped positioning clamp 11 and upper "n"-shaped positioning clamp 124 are used to clamp the pipe or profile after cooperating.
[0029] Preferably, the locking assembly 123 includes a locking base 1231, a wrench 1232, a locking hook 1233, and a locking ring 1234. The locking hook 1233 is fixed outside the cutting chamber 1, the locking base 1231 is fixed on the clamping cover 121, one end of the wrench 1232 is hinged to the locking base 1231 via a hinge shaft one, and the wrench 1232 is also hinged to one end of the locking ring 1234 via a hinge shaft two. The other end of the locking ring 1234 is detachably fastened to the locking hook 1233.
[0030] As a preferred option, for ease of operation, the end of the wrench 1232 away from the locking base 1231 is provided with a non-slip operating handle 1235.
[0031] This structure, by adding a reducer 5 between the main motor 4 and the fly knife holder 6 to the existing fly knife cutting machine, can further improve problems such as uneven cut surfaces and rough cross-sections when cutting pipes and profiles. Furthermore, adding the reducer 5 can enhance the fly knife cutting torque and increase the cuttable thickness. Additionally, this structure adds a temperature-sensing blade heating assembly 7 near the blade 2 inside the cutting chamber 1, allowing the controller 8 to pre-set the heating temperature according to the final product cutting requirements. Figure 5 , Figure 6 As shown, the heating wire 7031 leading out from the side of the heating plate 703 is controlled by the controller 8 to transmit heat to the heating plate 703, and the heat conduction plate base 702 conducts heat to heat the blade 2 in the initial state to a suitable temperature. When the temperature of the heat conduction plate base 702 reaches the preset temperature, the controller 8 controls the heating plate 703 to stop heating, thereby controlling the temperature of the heated blade 2 to adapt to cutting different plastic products and different plastic product thicknesses, and also avoiding excessive temperature from affecting the service life of the equipment.
[0032] It should also be noted that the specific models of the controller 8 and the temperature sensor 704 are conventional technologies in this field, and therefore will not be described in detail.
[0033] Example 2
[0034] Please see Figure 7 As shown in this embodiment, a universal flying knife cutting machine is disclosed. In order to clamp the pipe, the inner side of the lower U-shaped positioning clamp 11 is provided with a silicone anti-slip layer 111, and the inner side of the upper "n"-shaped positioning clamp 124 is provided with a silicone anti-slip layer 1241. In this embodiment, by adding the silicone anti-slip layer 111 and the silicone anti-slip layer 1241, when the lower U-shaped positioning clamp 11 and the upper "n"-shaped positioning clamp 124 work together to clamp the pipe, the pipe can be further clamped, and damage to the surface of the pipe can be avoided.
[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A universal flying knife cutting machine, comprising a cutting chamber (1) and a rotating blade (2) for cutting pipes or profiles on a clamp, wherein a clamping assembly (3) for clamping the pipes or profiles is provided behind the cutting chamber (1), and a main motor (4) is provided on the left side of the cutting chamber (1), characterized in that: The output end of the main motor (4) is connected to the input end of a reducer (5). The output end of the reducer (5) is inserted into the cutting chamber (1) and connected to a flying knife holder (6). The blade (2) is fixed on the side of the flying knife holder (6). A temperature measuring blade heating assembly (7) aligned with the initial stop position of the blade (2) is provided on the right side of the cutting chamber (1). The temperature measuring blade heating assembly (7) is used to heat the surface of the blade (2). A controller (8) electrically connected to the temperature measuring blade heating assembly (7) and used to control the operation of the temperature measuring blade heating assembly (7) is also provided on the left side of the cutting chamber (1). The controller (8) is electrically connected to the main motor (4) and the reducer (5).
2. A universal flying knife cutter according to claim 1, wherein: The temperature measuring blade heating assembly (7) includes a heat insulation sleeve (701), a heat-conducting plate base (702), a heating plate (703), and a temperature sensor (704). The heat-conducting plate base (702) is provided with a heating plate (703) that is electrically connected to the controller (8). One side of the heat-conducting plate base (702) is connected to the right side of the cutting chamber (1) through the heat insulation sleeve (701). The heat insulation sleeve (701) is provided with a temperature sensor (704) fixed on the heat-conducting plate. The temperature sensor (704) is electrically connected to the controller (8).
3. A universal flying knife cutter according to claim 1 or 2, characterized in that: The right side of the cutting chamber (1) is fixed with a maintenance cover (10) by one or more locking screws (9), and the blade (2) can be exposed when the maintenance cover (10) is opened.
4. A universal flying knife cutter according to claim 1 or 2, characterized in that: The clamping assembly (3) includes two lower U-shaped positioning clamps (11) placed behind the cutting chamber (1) and an upper positioning clamp group (12) that cooperates with the two lower U-shaped positioning clamps (11). The two lower U-shaped positioning clamps (11) are distributed left and right in the cutting chamber (1), and there is a gap between the two lower U-shaped positioning clamps (11) as the cutting area of the blade (2). A notch (13) is provided behind the cutting chamber (1), and the upper positioning clamp group (12) is hinged to the outside of the notch (13). The upper positioning clamp group (12) covers... The clamping cover (121) is hinged to the outside of the cutting chamber (1) via a hinge (122) at its lower part. A locking assembly (123) for locking the cutting chamber (1) is provided on the upper part of the clamping cover (121). Two upper "n"-shaped positioning clips (124) are provided inside the clamping cover (121) and respectively cooperate with the lower U-shaped positioning clip (11). The corresponding lower U-shaped positioning clip (11) is used to clamp the pipe or profile after cooperating with the upper "n"-shaped positioning clip (124).
5. A universal flying knife cutter as claimed in claim 4, wherein: The locking assembly (123) includes a locking base (1231), a wrench (1232), a locking hook (1233), and a locking ring (1234). The locking hook (1233) is fixed outside the cutting chamber (1). The locking base (1231) is fixed on the clamping cover (121). One end of the wrench (1232) is hinged to the locking base (1231) via a hinge shaft one. The wrench (1232) is also hinged to one end of the locking ring (1234) via a hinge shaft two. The other end of the locking ring (1234) is detachably fastened to the locking hook (1233).
6. A universal flying knife cutter according to claim 5, wherein: The end of the wrench (1232) away from the locking base (1231) is provided with a non-slip operating handle (1235).
7. A universal flying knife cutter as claimed in claim 4, wherein: The lower U-shaped positioning clip (11) has a silicone anti-slip layer one (111) on its inner side, and the upper "n"-shaped positioning clip (124) has a silicone anti-slip layer two (1241) on its inner side.