Centrifugal cutting mechanism

Abstract

The invention discloses a centrifugal cutting mechanism which comprises a machine base, a feeding channel for conveying pipe fittings is arranged on the machine base, a cutting assembly capable of rotating around the feeding channel and a driving device used for driving the cutting assembly to rotate are arranged on the machine base, and the cutting assembly comprises a rotating base. A sliding part capable of sliding relative to the rotating seat is arranged on the rotating seat, a cutting knife is arranged on the sliding part, a balance weight part is connected to the sliding part, and the balance weight part and the cutting knife are located on the two sides of the feeding channel respectively; and when the rotating seat rotates, the counter weight part can pull the sliding part to move, so that the cutting knife moves towards the center of the feeding channel, and the material cutting mechanism aims at overcoming the defects in the prior art and is used for pipe material beveling and capable of accurately and reliably achieving pipe material beveling.

Description

Technical Field

[0001] The invention specifically relates to a centrifugal cutting mechanism. Background Art

[0002] In the field of metal processing and manufacturing, a pipe bender is an important device for bending straight pipes into specific shapes. However, in the traditional pipe bending process, when the pipe is bent, due to the physical properties of the material, the inner bend is compressed and the outer bend is stretched. This uneven deformation often causes the pipe to tilt after bending, affecting the appearance quality and assembly accuracy of the product. Therefore, the inventor has developed a set of pipe bending processes and pipe bending equipment. This solution requires that the bevel cut be made in advance when the pipe blank is blanked. The bevel angle is calculated according to the thickness of the pipe. However, since the diameter of the pipe is generally thin, it is difficult for traditional pipe cutting equipment to make a pipe bevel process with high accuracy in one go.

[0003] The present invention is just produced based on the above-mentioned shortcomings. Summary of the invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and to provide a cutting mechanism for beveling pipes and capable of accurately and reliably achieving beveling of pipe fittings.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides a centrifugal cutting mechanism, comprising a machine base, a feeding channel for conveying pipes on the machine base, a cutting component capable of rotating around the feeding channel, and a driving device for driving the cutting component to rotate on the machine base, the cutting component comprising a rotating seat, a sliding member capable of sliding relative to the rotating seat, a cutting knife on the sliding member, a counterweight connected to the sliding member, the counterweight and the cutting knife respectively located on both sides of the feeding channel, so that when the rotating seat rotates, the counterweight can pull the sliding member to move and thereby move the cutting knife toward the center of the feeding channel.

[0007] In the centrifugal cutting mechanism as described above, the rotation axis of the cutting component forms an angle with the feeding channel.

[0008] As described above, the centrifugal cutting mechanism, the rotating seat includes a driving cylinder seat, a raised mounting boss is provided in the middle of the driving cylinder seat, a sliding groove with open ends is provided on the mounting boss, the driving cylinder seat is connected to a mounting sleeve, the mounting sleeve is provided with a ring which is sleeved on the mounting boss and closes the two ends of the sliding groove, the ring is provided with a matching recess corresponding to the sliding groove, and the matching recess and the sliding groove form a cavity for the sliding part to slide.

[0009] As described above, the centrifugal cutting mechanism has a first feeding hole for the pipe to pass through on the rotating seat, a second feeding hole for the pipe to pass through is provided in the middle of the sliding member, the sliding member is connected to the cutting knife on one side of the second feeding hole, and the sliding member is connected to the counterweight on the other side of the second feeding hole.

[0010] As described above, the centrifugal cutting mechanism, the rotating seat includes a driving cylinder seat and a mounting sleeve seat connected to the driving cylinder seat, the mounting sleeve seat is cylindrical, the mounting sleeve seat is provided with a semi-cylindrical mounting notch, the counterweight is semi-cylindrical matching the shape of the mounting sleeve seat, and the counterweight is arranged on the mounting notch.

[0011] As described above, the centrifugal cutting mechanism has an adjustment seat on the machine base, which is rotatably connected to the machine base so that the adjustment seat can swing relative to the machine base, and a locking structure for locking the adjustment seat is provided between the adjustment seat and the machine base, and the cutting assembly and the driving device are both connected to the adjustment seat.

[0012] As described above, the centrifugal cutting mechanism, the locking structure includes an arc hole arranged on the machine base and concentric with the rotation axis of the adjustment base, and a connecting hole arranged on the adjustment base and corresponding to the arc hole, so that the mounting bolt can pass through the arc hole and connect with the connecting hole.

[0013] In the centrifugal cutting mechanism as described above, the driving device comprises a driving motor, the output shaft of the driving motor is connected to a pulley, a belt is wound around the pulley, and the belt is wound around the driving cylinder seat.

[0014] In the centrifugal cutting mechanism as described above, a plurality of cutting assemblies are provided, and the belt is sequentially wound around the driving cylinder seat of each cutting assembly.

[0015] In the centrifugal cutting mechanism as described above, the sliding member is provided with a connecting shaft, the connecting shaft is sleeved with a bearing, and the cutting blade sleeve is arranged on the bearing.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] The cutting mechanism of the present invention has a channel for conveying pipe fittings, and has a cutting component that can rotate around the feeding channel, and the rotation axis of the cutting component rotates at an angle with the center line of the feeding channel. The cutting component includes a rotating seat, and the rotating seat is provided with a sliding member that can slide relative to it, and the sliding member is provided with a cutting knife. The sliding member is connected with a counterweight, and the counterweight and the cutting knife are respectively located on both sides of the feeding channel. During operation, when the rotating seat rotates, the counterweight moves in a direction away from the rotation axis due to centrifugal force, thereby driving the sliding member to move. During the movement, the counterweight moves away from the center of the feeding channel and the cutting knife approaches the center of the feeding channel, so that the cutting knife is pressed against the pipe fitting, and at the same time, the cutting knife rotates in a circle along the circumference of the cylindrical surface of the pipe fitting, thereby cutting an inclined incision. Since the rotation direction of the cutting knife forms an angle with the axial direction of the pipe fitting, the moving path of the cutting knife is elliptical, so the way in which the counterweight pulls the cutting knife to press against the pipe fitting can make the cutting knife automatically adapt to cut the pipe fitting along the path of the incision, thereby accurately and stably cutting the inclined pipe fitting incision. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the cutting mechanism of the present invention;

[0019] Figure 2 It is a partial exploded schematic diagram of the cutting mechanism of the present invention. Figure 1 ;

[0020] Figure 3 It is a partial exploded schematic diagram of the cutting mechanism of the present invention. Figure 2 ;

[0021] Figure 4 It is a schematic diagram of the principle of the cutting assembly of the present invention;

[0022] Figure 5 It is a structural schematic diagram of the cutting assembly of the present invention;

[0023] Figure 6 is a schematic cross-sectional view of a cutting assembly of the present invention;

[0024] Figure 7 Schematic diagram of the decomposition of the cutting assembly of the present invention Figure 1 ;

[0025] Figure 8 Schematic diagram of the decomposition of the cutting assembly of the present invention Figure 2 . DETAILED DESCRIPTION

[0026] The invention will be further described below in conjunction with the accompanying drawings:

[0027] The directions described in the specification of the present invention, such as "up", "down", "left", "right", "front", "back", etc., are based on the directions of the drawings and are intended to facilitate the description of the relationship between the various components. They do not indicate the unique or absolute positional relationship between the various components. They are only one of the implementation methods of the invention and are not a limitation on its implementation method.

[0028] In this embodiment, a centrifugal cutting mechanism is provided. Figures 1 to 6 As shown, the machine base 1 includes a feeding channel 10 for conveying the pipe A, wherein the feeding channel 10 refers to a channel for conveying the pipe A along the axial direction, which can be realized by providing a through hole or a sleeve for the pipe A to pass through on the machine base 1. In this embodiment, as shown in FIG. Figures 1 to 6 As shown, the base 1 is provided with a sleeve 12, so that the pipe A can be transported through the sleeve 12, and the path for transporting the pipe A is the feeding channel 10, that is, the inner cavity of the sleeve 12, the feeding through hole 40 on the adjustment base 4, the first feeding hole 210, and the second feeding hole 220 all constitute the feeding channel 10 for transporting the pipe A. The base 1 is provided with a cutting assembly 2 that can rotate around the feeding channel 10, and a driving device 3 for driving the cutting assembly 2 to rotate, and the rotation axis of the cutting assembly 2 forms an angle with the feeding channel 10, as shown in FIG. Figure 6As shown, the rotation axis P1 of the cutting component 2 forms an angle α with the center line P2 of the feeding channel 10, wherein the angle α is generally in the range of 5° to 15°, and a larger or smaller angle can be set in special cases. In order to realize this structure, the feeding channel 10 is set horizontally, and the rotation axis P1 of the cutting component 2 is set obliquely. The cutting assembly 2 includes a rotating seat 21, on which is provided a sliding member 22 that can slide relative to the rotating seat 21, on which is provided a cutting knife 23, and on which is connected a counterweight 24, wherein the counterweight 24 and the cutting knife 23 are respectively located on both sides of the feeding channel 10, so that when the rotating seat 21 rotates, the counterweight 24 can pull the sliding member 22 to move, thereby causing the cutting knife 23 to move toward the center of the feeding channel 10. During operation, the rotating seat 21 rotates under the drive of the driving device 3, and when the rotating seat 21 rotates, the counterweight 24 moves in a direction away from the rotation axis P1 due to the centrifugal force, thereby driving the sliding member 22 to move. During the movement of the sliding member 22, the counterweight 24 moves away from the center P2 of the feeding channel 10 and the cutting knife 23 approaches the center P2 of the feeding channel 10, so that the cutting knife 23 is pressed toward the pipe A, and at the same time, the cutting knife 23 rotates in a circle along the circumferential direction of the cylindrical surface of the pipe A, and the rotation trajectory is inclined relative to the center P2 of the feeding channel 10, thereby cutting an inclined incision. Through the above structure, since the direction of rotation of the cutting knife 23 forms an angle with the axial direction of the pipe A, in order to cut a precise inclined cut, the moving path of the cutting knife 23 is elliptical, so it is necessary to pull the cutting knife 23 toward the pipe A through the counterweight 24, and then the cutting knife 23 can automatically adapt to the path of the cut during the rotation of the rotating seat 21. This is something that cannot be accomplished by the traditional pipe cutting equipment that only moves the position of the cutting knife 23. Of course, the above structure can also be applied to the case where the rotation axis of the cutting component 2 is aligned with the feeding channel 10. In this case, it is not necessary to bevel the pipe A, but only to cut a circular cut perpendicular to the axial direction of the pipe A on the pipe A, that is, the angle between the rotation axis P1 of the cutting component 2 and the center line P2 of the feeding channel 10 is 0°, and this structure is also applicable to this case.

[0029] In this embodiment, the counterweight 24 and the sliding member 22 are of separate structures, and the counterweight 24 and the sliding member 22 may also be made into an integrated structure.

[0030] Detailed structure such as Figures 4 to 8As shown, the rotating seat 21 includes a driving cylinder seat 211 and a mounting sleeve seat 212, that is, the rotating seat 21 is a split type, and of course it can also be made into an integrated type. In this embodiment, a raised mounting boss 2111 is provided in the middle of the driving cylinder seat 211, and a sliding groove 2112 with open two ends is provided on the mounting boss 2111. The driving cylinder seat 211 is connected to a mounting sleeve 212, and the mounting sleeve 212 is provided with a ring 2121 which is sleeved on the mounting boss 2111 and closes the two ends of the sliding groove 2112. The ring 2121 is provided with a matching recess 2122 corresponding to the sliding groove 2112. The matching recess 2122 and the sliding groove 2112 constitute a cavity for the sliding member 22 to slide. By assembling, the driving cylinder seat 211 and the mounting sleeve 212 are connected and combined to form a closed cavity for the sliding member 22 to slide in the cavity. This structure only requires the sliding member 22 to be assembled into the sliding groove 2112 first, and then the mounting sleeve 212 is sleeved and connected to the mounting boss 2111. In a mechanism with a smaller structural size, the stability and firmness of the structure can be guaranteed.

[0031] like Figures 4 to 8 As shown, the rotating seat 21 is provided with a first feeding hole 210 for the pipe A to pass through, and the middle part of the sliding member 22 is provided with a second feeding hole 220 for the pipe A to pass through, and the sliding member 22 is connected to the cutting knife 23 on one side of the second feeding hole 220, and the sliding member 22 is connected to the counterweight 24 on the other side of the second feeding hole 220, wherein the connection between the counterweight 24 and the sliding member 22 is through a connecting key 27, and the counterweight 24 is connected to the connecting key 27 by a card slot, and can also be connected to the sliding member 22 by welding, bonding, etc.

[0032] like Figures 4 to 8 As shown, the rotating seat 21 includes a driving cylinder seat 211 and a mounting sleeve 212 connected to the driving cylinder seat 211, the mounting sleeve 212 is cylindrical, and the mounting sleeve 212 is provided with a semi-cylindrical mounting notch 2123, the counterweight 24 is a semi-cylindrical shape matching the shape of the mounting sleeve 212, and the counterweight 24 is arranged on the mounting notch 2123, so that the counterweight 24 and the local structure of the mounting sleeve 212 are combined to form a cylinder, so that the dynamic balance of the entire cutting assembly 2 is more stable when rotating, and the working stability of the entire mechanism is better.

[0033] In practical applications, in order to adapt to pipe fittings A of different diameters, the inclination of the cut is different due to the uneven degree of compression at the inner bend and stretching at the outer bend of different diameters during pipe bending. In addition, if the wall thickness of pipe fittings A of the same diameter is different, the inclination of the cut will also be different during pipe bending. For this reason, Figure 1 and Figure 2As shown, the machine base 1 is provided with an adjustment seat 4, and the adjustment seat 4 is rotatably connected to the machine base 1 so that the adjustment seat 4 can swing relative to the machine base 1. A locking structure 5 for locking the adjustment seat 4 is provided between the adjustment seat 4 and the machine base 1, so that the adjustment seat 4 can adjust the swing angle, and then the cutting assembly 2 and the driving device 3 are both connected to the adjustment seat 4, so that the inclination angle between the rotation axis P1 of the cutting assembly 2 and the center line P2 of the feeding channel 10 can be adjusted, so as to adapt to pipes with different diameters and different wall thicknesses. Among them, the locking structure 5 includes an arc hole 11 arranged on the machine base 1 and concentric with the rotation axis of the adjustment seat 4, and a connecting hole 41 arranged on the adjustment seat 4 and corresponding to the arc hole 11, so that the mounting bolt can pass through the arc hole 11 and connect with the connecting hole 41, wherein the mounting bolt is a standard part and is not shown in the drawings.

[0034] As an implementation mode of the driving device 3, the driving device 3 includes a driving motor 31, the driving motor 31 is installed and connected to the adjustment seat 4, and the driving cylinder seat 211 of the cutting component 2 is rotatably connected to the adjustment seat 4, the output shaft of the driving motor 31 is connected to a pulley 32, the pulley 32 is wound with a belt 33, the belt 33 is wound on the driving cylinder seat 211, and then all the driving cylinder seats 211 are driven to rotate synchronously by the same driving motor 31, and the cutting component 2 is provided with multiple belts 33, and the belts 33 are sequentially wound on the driving cylinder seats 211 of each cutting component 2, wherein the winding method is as follows: Figure 2 As shown, the belt is S-shaped and passes through each drive cylinder seat 211 in turn, or passes through two drive cylinder seats 211 in turn to achieve synchronous rotation of each drive cylinder seat 211, making the structure more compact while ensuring the consistency of the work of each cutting component 2, ensuring the quality and yield of the product. In order to accurately control the speed and angle of rotation of the cutting component 2, as a preferred embodiment, the drive motor 31 can use a servo motor that can accurately control the speed and rotation angle, the pulley 32 can use a synchronous pulley with teeth, and the belt can use a synchronous belt with teeth on the inside.

[0035] As a preferred method, in order to enable the cutting knife 23 to smoothly cut the pipe A, Figure 5 and Figure 6 As shown, the sliding member 22 is provided with a connecting shaft 25, and the connecting shaft 25 is sleeved with a bearing 26. The cutting knife 23 is sleeved on the bearing 26, so that the cutting knife 23 can be smoothly rotated and connected to the connecting shaft 25. Of course, the cutting knife 23 can also be directly fixedly connected to the connecting shaft 25.

[0036] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A centrifugal cutting mechanism, characterized in that: The invention comprises a machine base (1), wherein the machine base (1) is provided with a feeding channel (10) for conveying pipes, the machine base (1) is provided with a cutting assembly (2) capable of rotating around the feeding channel (10), and a driving device (3) for driving the cutting assembly (2) to rotate, the cutting assembly (2) comprises a rotating seat (21), the rotating seat (21) is provided with a sliding member (22) capable of sliding relative thereto, the sliding member (22) is provided with a cutting knife (23), the sliding member (22) is connected with a counterweight (24), the counterweight (24) and the cutting knife (23) are respectively located on both sides of the feeding channel (10), so that when the rotating seat (21) rotates, the counterweight (24) can pull the sliding member (22) to move, thereby causing the cutting knife (23) to move toward the center of the feeding channel (10).

2. The centrifugal cutting mechanism according to claim 1, characterized in that: The rotation axis of the cutting component (2) forms an angle with the feeding channel (10).

3. The centrifugal cutting mechanism according to claim 1, characterized in that: The rotating seat (21) includes a driving cylinder seat (211), a raised mounting boss (2111) is provided in the middle of the driving cylinder seat (211), a sliding groove (2112) with two open ends is provided on the mounting boss (2111), a mounting sleeve (212) is connected to the driving cylinder seat (211), a sleeve (2121) is provided on the mounting sleeve (212) which is sleeved on the mounting boss (2111) and closes the two ends of the sliding groove (2112), a matching recess (2122) is provided on the sleeve (2121) corresponding to the sliding groove (2112), and the matching recess (2122) and the sliding groove (2112) form a cavity for the sliding member (22) to slide.

4. The centrifugal cutting mechanism according to claim 1, characterized in that: The rotating seat (21) is provided with a first feeding hole (210) for the pipe to pass through, and the middle of the sliding member (22) is provided with a second feeding hole (220) for the pipe to pass through. The sliding member (22) is connected to the cutting knife (23) on one side of the second feeding hole (220), and the sliding member (22) is connected to the counterweight (24) on the other side of the second feeding hole (220).

5. The centrifugal cutting mechanism according to claim 1, characterized in that: The rotating seat (21) comprises a driving cylinder seat (211) and a mounting sleeve seat (212) connected to the driving cylinder seat (211); the mounting sleeve seat (212) is cylindrical, and the mounting sleeve seat (212) is provided with a semi-cylindrical mounting notch (2123); the counterweight (24) is semi-cylindrical in shape matching the mounting sleeve seat (212), and the counterweight (24) is arranged on the mounting notch (2123).

6. The centrifugal cutting mechanism according to claim 1, characterized in that: The machine base (1) is provided with an adjustment seat (4), the adjustment seat (4) is rotatably connected to the machine base (1) so that the adjustment seat (4) can swing relative to the machine base (1), a locking structure (5) for locking the adjustment seat (4) is provided between the adjustment seat (4) and the machine base (1), and the cutting assembly (2) and the driving device (3) are both connected to the adjustment seat (4).

7. The centrifugal cutting mechanism according to claim 5, characterized in that: The locking structure (5) comprises an arc-shaped hole (11) arranged on the machine base (1) and concentric with the rotation axis of the adjustment base (4), and a connecting hole (41) arranged on the adjustment base (4) and corresponding to the arc-shaped hole (11), so that the mounting bolt can pass through the arc-shaped hole (11) and connect with the connecting hole (41).

8. The centrifugal cutting mechanism according to claim 2, characterized in that: The driving device (3) comprises a driving motor (31), the output shaft of the driving motor (31) is connected to a pulley (32), a belt (33) is wound around the pulley (32), and the belt (33) is wound on the driving cylinder seat (211).

9. The centrifugal cutting mechanism according to claim 7, characterized in that: The cutting components (2) are provided in plurality, and the belt (33) is sequentially wound around the driving cylinder seat (211) of each cutting component (2).

10. The centrifugal cutting mechanism according to claim 1, characterized in that: The sliding member (22) is provided with a connecting shaft (25), the connecting shaft (25) is sleeved with a bearing (26), and the cutting knife (23) is sleeved on the bearing (26).

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