A synchronous eccentric adjustment scoring cutter disc

Abstract

In the field of modern fully automatic welded pipe production lines, the forming of continuous pipe materials sometimes needs to be done by welding. In this case, it is necessary to cut and remove the excess weld meat generated by welding. However, the existing weld meat cutting equipment is usually a disc with a cutting blade at the lower end, which cuts off the excess weld meat of the steel pipe by synchronous movement with the steel pipe. However, the adjustment device for adjusting the cutting depth of the weld meat is arranged above the disc. The adjustment device is usually a worm gear transmission device, so the structure is relatively complex and the appearance is tall, which is not suitable for the current trend of simple and compact production lines. Therefore, in order to simplify the structure and reduce production costs, the present technical solution discloses a synchronous eccentric adjustment notching knife disc, which is used for cutting continuous materials at a fixed distance and depth. The spatial position of the rotating knife disc is adjusted by providing a rotating knife disc with a notching knife assembly and a center shaft with an eccentric setting, thereby realizing the notching knife assembly to adjust the cutting depth of the continuous material.

Description

Technical Field

[0001] The invention relates to the technical field of welding and forming slender materials, and in particular to a synchronous eccentric adjustment notching cutter disc for processing welding seams. Background Art

[0002] In the field of modern fully automatic welded pipe production lines, the forming of continuous pipe materials sometimes needs to be formed by welding. Then the weld seam will inevitably affect the shape and size of the pipe material. In order to correct the shape and size of the welded pipe, it is necessary to remove the excess weld meat. Therefore, in order to facilitate the removal of excess weld meat, the weld meat needs to be cut. However, the existing weld meat cutting equipment is usually a disc with a cutting blade at the lower end, which can cut off the excess weld meat of the steel pipe by synchronous movement with the steel pipe. However, the adjustment device for adjusting the cutting depth of the weld meat is arranged above the disc. The adjustment device is usually a worm gear transmission device, so the structure is relatively complex and the appearance is tall, which is not suitable for the current trend of simple and compact production lines. Therefore, in order to simplify the structure and reduce production costs, a simple, compact and functional synchronous eccentric adjustment notching cutter disc has been developed as a new way. Summary of the invention

[0003] An embodiment of the present invention provides a synchronous eccentrically adjusted notching cutter disc, which is used for cutting continuous materials at a fixed distance and depth. The spatial position of the rotating cutter disc is adjusted by providing a rotating cutter disc with a notching knife assembly and a center shaft with an eccentric setting. By rotating the center shaft, the rotation center of the rotating cutter disc can produce a distance change relative to the spatial position of the continuous material to be cut, thereby achieving the notching knife assembly to adjust the cutting depth of the continuous material.

[0004] On the one hand, a synchronous eccentrically adjusted notching cutter disc is used for cutting a continuous material w at a fixed distance and depth, comprising a rotary cutter disc 1 and a center shaft 2. The rotary cutter disc 1 can be installed on the center shaft 2 and can rotate freely relative to the center shaft 2. The rotary cutter disc 1 is also provided with a notching knife assembly 1a, which is characterized in that the position on the center shaft 2 where the rotary cutter disc 1 is installed is eccentrically arranged. By rotating the center shaft 2, the rotation center of the rotary cutter disc 1 can produce a distance change relative to the spatial position of the continuous material w to be cut, thereby realizing the adjustment of the cutting depth of the continuous material w by the notching knife assembly 1a.

[0005] According to one aspect of an embodiment of the present invention, a half disc 3 is further provided, and a support portion 3a is further provided on the half disc 3. The half disc 3 is arranged on the outer side of the rotary knife disc 1, and the half disc 3 is also installed on the central axis 2 and can rotate freely relative to the central axis 2. The support portion 3a is in contact with the continuous material w, and the support portion 3a can be used to maintain the distance between the scoring knife assembly 1a and the continuous material w.

[0006] According to one aspect of an embodiment of the present invention, the half disc 3 is further provided with a first half disc 3b and a second half disc 3c, and the first half disc 3b and the second half disc 3c are both arranged on both sides of the rotary cutter disc 1 and wrap the rotary cutter disc 1 in the middle, and the support portion 3a is further provided with a first half disc support 3a1 and a second half disc support 3a2, the first half disc support 3a1 is arranged on the first half disc 3b, and the second half disc support 3a2 is arranged on the second half disc 3c, and a gap is further provided between the first half disc support 3a1 and the second half disc support 3a2, and the notching knife assembly 1a cuts the continuous material w through the gap.

[0007] According to one aspect of an embodiment of the present invention, a pin shaft 1b is further provided on the rotary cutter disc 1, and a sliding groove h is further provided at positions of the first half disc 3b and the second half disc 3c corresponding to the pin shaft 1b, and the pin shaft 1b can slide in the sliding groove h. Through the interaction between the pin shaft 1b and the sliding groove h, the rotary cutter disc 1 can rotate synchronously with the half disc 3 and can produce an offset of the rotation center relative to the half disc 3.

[0008] According to one aspect of an embodiment of the present invention, the scoring knife assembly 1a also includes a fixing screw 1a1, a pressure block 1a2 and a scoring knife 1a3. The fixing screw 1a1 can press the pressure block 1a2 onto the scoring knife 1a3 to fix the scoring knife 1a3 on the rotary knife disc 1. A disassembly hole 3b1 is also provided on the side of the first half disc 3b. The fixing screw 1a1 is provided in the disassembly hole 3b1. Torque can be conveniently applied to the fixing screw 1a1 through the disassembly hole 3b1, thereby realizing quick disassembly and replacement of the scoring knife 1a3.

[0009] According to one aspect of an embodiment of the present invention, the notching knife 1a3 is arranged in the gap between the first half-disc support 3a1 and the second half-disc support 3a2. By rotating the central axis 2, the rotary knife disc 1 can produce an offset of the rotation center relative to the half-disc 3, so that the notching knife 1a3 can extend or retract in the gap to adjust the cutting depth of the continuous material w by the notching knife 1a3.

[0010] According to one aspect of an embodiment of the present invention, the first half-disc support 3a1 and the second half-disc support 3a2 are both inclined and mirror-symmetrical to each other. The first half-disc support 3a1 and the second half-disc support 3a2 are combined into a V-shape and can be suitable for tubular continuous materials w of different diameters.

[0011] According to one aspect of an embodiment of the present invention, a plurality of pin shafts 1b can be provided on the rotary cutter disc 1, and a plurality of corresponding sliding grooves h can also be provided on the first half disc 3b and the second half disc 3c, and the sliding directions of the sliding grooves h all point to the rotation center of the first half disc 3b and the second half disc 3c. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Features, advantages, and technical effects of exemplary embodiments of the present invention will be described below with reference to the accompanying drawings.

[0013] Description of the serial numbers: rotary cutter disc 1, cutter disc frame 1j, pin shaft 1b, notching knife assembly 1a, fixing screw 1a1, pressure block 1a2, notching knife 1a3, center axis 2, half disc 3, support part 3a, first half disc support 3a1, second half disc support 3a2, first half disc 3b, disassembly hole 3b1, second half disc 3c, sliding groove h, continuous material w, frame j.

[0014] Figure 1 It is a basic structural diagram of the first working state of an embodiment of the present invention.

[0015] Figure 2 It is a partial schematic diagram of the first working state of an embodiment of the present invention.

[0016] Figure 3 It is a basic structural diagram of the second working state of an embodiment of the present invention.

[0017] Figure 4 It is a partial schematic diagram of the second working state of an embodiment of the present invention.

[0018] Figure 5 It is a schematic side view of the structure of the first half disk 3b implemented in the present invention.

[0019] Figure 6 It is a schematic side view of the structure of the second half disk 3c implemented in the present invention.

[0020] Figure 7 It is a schematic diagram of the side structure of the rotary cutter disc 1 according to an embodiment of the present invention.

[0021] Figure 8 It is a schematic structural diagram of a second implementation scheme of an embodiment of the present invention.

[0022] Fig. 9 It is a schematic structural diagram of the third implementation scheme of the embodiment of the present invention.

[0023] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0024] The following detailed description of the embodiments of the present invention is further described in detail in conjunction with the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to exemplarily illustrate the principles of the present invention, but cannot be used to limit the scope of the present invention, that is, the present invention is not limited to the preferred embodiments described, and the scope of the present invention is defined by the claims.

[0025] In the description of the embodiments of the present invention, it should be noted that, unless otherwise specified, “vertical” and “parallel” do not just have absolute meanings in a mathematical sense, but can be understood as “approximately vertical” and “approximately parallel”.

[0026] Figure 1 It is a basic structural diagram of the first working state of an embodiment of the present invention.

[0027] Figure 8 It is a schematic structural diagram of a second implementation scheme of an embodiment of the present invention.

[0028] Fig. 9 It is a schematic structural diagram of the third implementation scheme of the embodiment of the present invention.

[0029] according to Figure 1 , Figure 8 and Fig. 9 As shown, an embodiment of the present invention provides a synchronous eccentric adjustment notching cutter disc, which is used for cutting continuous materials at a fixed distance and depth. The spatial position of the rotating cutter disc is adjusted by providing a rotating cutter disc with a notching knife assembly and a center shaft with an eccentric setting. By rotating the center shaft, the rotation center of the rotating cutter disc can produce a distance change relative to the spatial position of the continuous material to be cut, thereby achieving the notching knife assembly to adjust the cutting depth of the continuous material. Its specific structure may include a rotary cutter disc 1, a half disc 3, a central axis 2 and a frame j, wherein the rotary cutter disc 1 is a disc-shaped disc with a mounting circular hole in the center and a notching knife assembly 1a is provided thereon, and the notching knife assembly 1a can be used to cut the continuous material w, and the rotary cutter disc 1 can be installed on the central axis 2 through the mounting circular hole provided in the center thereof and can rotate freely relative to the central axis 2, and the central axis 2 is a long cylindrical stepped axis and is divided into at least two sections, and the position where the rotary cutter disc 1 is installed is eccentrically arranged relative to other positions, that is, the center of the shaft diameter at the position where the rotary cutter disc 1 is installed has a certain offset relative to the center of the shaft diameter at other positions of the central axis 2. The half disc 3 is a disc-shaped disc with a mounting circular hole in the center, and a support portion 3a is also provided on its outer circumferential surface. The half disc 3 is arranged outside the rotary cutter disc 1, and the half disc 3 is also mounted on the central shaft 2 and can freely rotate relative to the central shaft 2. The support portion 3a is in contact with the continuous material w, and the support portion 3a can be used to maintain the distance between the notching knife assembly 1a and the continuous material w. The frame j can be a fork-shaped or plate-shaped, which is used to install and fix the spatial position of the central shaft 2, but the installation fit between the central shaft 2 and the frame j is a fit between an axis and a hole, so applying torque to the central shaft 2 can realize the rotation of the central shaft 2 relative to the frame j, and by rotating the central shaft 2, the rotation center of the rotary cutter disc 1 can produce a distance change relative to the spatial position of the continuous material w to be cut, thereby realizing the adjustment of the cutting depth of the continuous material w by the notching knife assembly 1a.

[0030] Figure 1 It is a basic structural diagram of the first working state of an embodiment of the present invention.

[0031] Figure 5 It is a schematic side view of the structure of the first half disk 3b implemented in the present invention.

[0032] Figure 6 It is a schematic side view of the structure of the second half disk 3c implemented in the present invention.

[0033] according to Figure 5 and Figure 6 As shown, according to one aspect of an embodiment of the present invention, the half disc 3 is further provided with a first half disc 3b and a second half disc 3c, the first half disc 3b and the second half disc 3c are both disc-shaped with a mounting circular hole in the center and are both mounted on the central axis 2 and arranged on both sides of the rotary cutter disc 1 and wrap the rotary cutter disc 1 in the middle, the support portion 3a is further provided with a first half disc support 3a1 and a second half disc support 3a2, the first half disc support 3a1 is arranged on the outer circumference of the first half disc 3b, the second half disc support 3a2 is arranged on the outer circumference of the second half disc 3c, and a gap is further provided between the first half disc support 3a1 and the second half disc support 3a2, and the notching knife assembly 1a cuts the continuous material w through the gap. The first half disc support 3a1 and the second half disc support 3a2 are both bevel-shaped and mirror-symmetrical to each other. In this embodiment, in order to better process the tube-shaped continuous material w, the first half disc support 3a1 and the second half disc support 3a2 are combined into a V-shape, which can be suitable for tube-shaped continuous materials w of different diameters.

[0034] Figure 7 It is a schematic diagram of the side structure of the rotary cutter disc 1 according to an embodiment of the present invention.

[0035] according to Figure 7 As shown, according to one aspect of an embodiment of the present invention, the rotary cutter disc 1 is further provided with a pin 1b, and the pin 1b is in the shape of an elongated cylinder, which is fixed at the outer edge of the rotary cutter disc 1. According to the technical means conventionally used by those skilled in the art, the pin 1b can also be directly replaced with other technical solutions, such as replacing the elongated cylinder with a flat rod with two sections or a square shape which is integrally formed with the rotary cutter disc 1.

[0036] According to one aspect of an embodiment of the present invention, correspondingly, a sliding groove h is further provided at the position of the first half disk 3b and the second half disk 3c corresponding to the pin shaft 1b. The sliding groove h is an inwardly recessed long strip groove arranged on the side surface of the first half disk 3b and the second half disk 3c relative to the rotary cutter disc 1, and the width of the long strip groove is just enough to accommodate the two ends of the pin shaft 1b to slide therein. After the first half disk 3b, the second half disk 3c and the rotary cutter disc 1 are installed together, the two ends of the pin shaft 1b are inserted into the corresponding sliding grooves h on the first half disk 3b and the second half disk 3c. At this time, the central axis 2 is rotated. Due to the two ends of the pin shaft 1b It has been inserted into the corresponding sliding grooves h on the first half disc 3b and the second half disc 3c, so as the central shaft 2 rotates, the first half disc 3b, the second half disc 3c and the rotary cutter disc 1 will not rotate relative to each other. However, since the central shaft 2 is a stepped shaft and the center of the shaft diameter at the position where the rotary cutter disc 1 is installed has a certain offset relative to the center of the shaft diameter at other positions of the central shaft 2, as the central shaft 2 rotates, the rotary cutter disc 1 will slide relative to the first half disc 3b and the second half disc 3c. At this time, the pin 1b will slide in the sliding groove h to keep the rotary cutter disc 1 from rotating relative to the first half disc 3b and the second half disc 3c. Therefore, through the interaction between the pin 1b and the sliding groove h, the rotary cutter disc 1 can rotate synchronously with the half disc 3 and can produce an offset of the rotation center relative to the half disc 3. In addition, multiple pin shafts 1b can be set on the rotary cutter disc 1, and multiple sliding grooves h can be set on the corresponding first half disc 3b and the second half disc 3c, and the sliding directions of the sliding grooves h all point to the rotation center of the first half disc 3b and the second half disc 3c.

[0037] Figure 5 It is a schematic side view of the structure of the first half disk 3b implemented in the present invention.

[0038] Figure 7 It is a schematic diagram of the side structure of the rotary cutter disc 1 according to an embodiment of the present invention.

[0039] according to Figure 7As shown, according to one aspect of the embodiment of the present invention, the rotary cutter disc 1 is provided with a notching knife assembly 1a and a cutter disc frame 1j, the notching knife assembly 1a is evenly distributed on the circumference of the edge of the cutter disc frame 1j of the rotary cutter disc 1, the notching knife assembly 1a also includes a fixing screw 1a1, a pressing block 1a2 and a notching knife 1a3, the pressing block 1a2 is used to squeeze the notching knife 1a3, and the notching knife 1a3 is used to cut the welding weld of the continuous material w. The fixing screw 1a1 can pass through the pressing block 1a2 and be fastened on the cutter disc frame 1j and press the pressing block 1a2 on the notching knife 1a3 to fix the notching knife 1a3 on the cutter disc frame 1j of the rotary cutter disc 1. A disassembly hole 3b1 is also provided on the side of the first half disc 3b, the fixing screw 1a1 is arranged in the disassembly hole 3b1, and a torque can be easily applied to the fixing screw 1a1 through the disassembly hole 3b1, thereby realizing the rapid disassembly and replacement of the notching knife 1a3. The notching knife 1a3 is arranged in the gap between the first half disc support 3a1 and the second half disc support 3a2. By rotating the central axis 2, the rotary cutter disc 1 can produce an offset of the rotation center relative to the half disc 3, so that the notching knife 1a3 can extend or retract in the gap to adjust the cutting depth of the continuous material w by the notching knife 1a3.

[0040] Figure 2 It is a partial schematic diagram of the first working state of an embodiment of the present invention.

[0041] Figure 4 It is a partial schematic diagram of the second working state of an embodiment of the present invention.

[0042] according to Figure 2 and Figure 4As shown, according to one aspect of an embodiment of the present invention, the specific working process of this implementation scheme is that when the technical scheme needs to process a small-diameter tubular continuous material w, the small-diameter tubular continuous material w is placed under the first half-disc support 3a1 and the second half-disc support 3a2 so that the first half-disc support 3a1 and the second half-disc support 3a2 are fully in contact with the tubular continuous material w respectively, and then the central axis 2 is rotated to gradually adjust the spatial relative position of the rotary cutter disc 1 and the half-disc 3 so that the notching knife 1a3 gradually extends from the gap between the first half-disc support 3a1 and the second half-disc support 3a2 until it extends to a determined position. When the present technical solution needs to process a large-diameter tubular continuous material w, the large-diameter tubular continuous material w is also placed below the first half-disc support 3a1 and the second half-disc support 3a2 so that the first half-disc support 3a1 and the second half-disc support 3a2 are respectively in full contact with the tubular continuous material w, and then the central axis 2 is continuously rotated, and the spatial relative position of the rotary cutter disc 1 and the half-disc 3 is gradually adjusted so that the notching knife 1a3 gradually extends from the gap between the first half-disc support 3a1 and the second half-disc support 3a2 until it reaches a certain position. When the continuous material w starts to continuously pass through the working position of the present embodiment, the first half-disc support 3a1 and the second half-disc support 3a2 can generate friction with the continuous material w so that the half-disc 3 generates a circumferential rotation speed synchronized with the continuous material w, so that the half-disc 3 can drive the rotary cutter disc 1 to rotate synchronously so that the notching knife 1a3 continuously cuts the welding weld on the continuous material w at a fixed distance.

[0043] Figure 8 It is a schematic structural diagram of a second implementation scheme of an embodiment of the present invention.

[0044] according to Figure 8 As shown, according to one aspect of the second embodiment of the present invention, the technical solution can also be that the half plate 3 only has the first half plate 3b, and the remaining structural solutions and operation methods are basically the same as the previous embodiment. This embodiment is suitable for use in situations where the space on the other side is small or it is inconvenient to set up a mechanism.

[0045] Fig. 9 It is a schematic structural diagram of the third implementation scheme of the embodiment of the present invention.

[0046] according to Fig. 9 As shown, according to one aspect of the third embodiment of the present invention, the technical solution can also be that the shape of the first half-disc support 3a1 is a horizontal straight line or the first half-disc support 3a1 and the second half-disc support 3a2 are combined into a straight line, and the remaining structural solutions and operating methods are basically the same as the previous embodiment. This embodiment is suitable for the case where the continuous material w is in the shape of a flat plate.

[0047] It should be understood that the description of the specific embodiments of the present invention is exemplary and should not be interpreted as an improper limitation on the scope of protection of the present invention. The scope of protection of the present invention is defined by its claims and covers all embodiments and obvious equivalent variations falling within its scope.

Claims

1. A synchronous eccentrically adjustable notching cutter disc, used for cutting continuous materials (w) at a fixed distance and depth, comprising a rotary cutter disc (1) and a central shaft (2), wherein the rotary cutter disc (1) can be mounted on the central shaft (2) and can freely rotate relative to the central shaft (2), and the rotary cutter disc (1) is also provided with a notching knife assembly (1a), characterized in that The central shaft (2) is eccentrically arranged at the position where the rotary cutter disc (1) is installed. By rotating the central shaft (2), the rotation center of the rotary cutter disc (1) can change in distance relative to the spatial position of the continuous material (w) to be cut, thereby achieving adjustment of the cutting depth of the continuous material (w) by the notching knife assembly (1a). A half disc (3) is also provided. The half disc (3) is also provided with a support portion (3a). The half disc (3) is arranged on the outside of the rotary cutter disc (1), and the half disc (3) is also installed on the central shaft (2) and can freely rotate relative to the central shaft (2). The support portion (3a) is in contact with the continuous material (w). The support portion (3a) can be used to maintain the distance between the notching knife assembly (1a) and the continuous material (w). The half disc (3) is also provided with a first half disc (3b) and a second half disc (3c). The first half disc (3b) and the second half disc (3c) are both arranged on the rotary cutter disc (1). The support portion (3a) is provided with a first half-disc support (3a1) and a second half-disc support (3a2); the first half-disc support (3a1) is arranged on the first half-disc (3b); the second half-disc support (3a2) is arranged on the second half-disc (3c); a gap is provided between the first half-disc support (3a1) and the second half-disc support (3a2); the notching knife assembly (1a) cuts the continuous material (w) through the gap; a pin shaft (1b) is provided on the rotary cutter disc (1); a sliding groove (h) is provided at a position corresponding to the pin shaft (1b) of the first half-disc (3b) and the second half-disc (3c); the pin shaft (1b) can slide in the sliding groove (h); through the interaction between the pin shaft (1b) and the sliding groove (h), the rotary cutter disc (1) can rotate synchronously with the half-disc (3) and can generate a rotation center offset relative to the half-disc (3).

2. A synchronous eccentric adjustment notching cutter disc according to claim 1, characterized in that The notching knife assembly (1a) further comprises a fixing screw (1a1), a pressing block (1a2) and a notching knife (1a3); the fixing screw (1a1) can press the pressing block (1a2) onto the notching knife (1a3) so as to fix the notching knife (1a3) onto the rotary knife disc (1); a disassembly hole (3b1) is also provided on the side of the first half disc (3b); the fixing screw (1a1) is disposed in the disassembly hole (3b1); a torque can be conveniently applied to the fixing screw (1a1) through the disassembly hole (3b1), so as to achieve rapid disassembly and replacement of the notching knife (1a3).

3. A synchronous eccentric adjustment notching cutter disc according to claim 2, characterized in that The notching knife (1a3) is arranged in the gap between the first half disc support (3a1) and the second half disc support (3a2). By rotating the central axis (2), the rotary knife disc (1) can generate an offset of the rotation center relative to the half disc (3), so that the notching knife (1a3) can extend or retract in the gap to adjust the cutting depth of the continuous material (w) by the notching knife (1a3).

4. A synchronous eccentric adjustment notching cutter disc according to claim 3, characterized in that The first half-disc support (3a1) and the second half-disc support (3a2) are both inclined and mirror-symmetrical to each other. The first half-disc support (3a1) and the second half-disc support (3a2) are combined into a V-shape and can be suitable for tubular continuous materials (w) of different diameters.

5. A synchronous eccentric adjustment notching cutter disc according to claim 4, characterized in that A plurality of pins (1b) may be provided on the rotary cutter disc (1), and a plurality of corresponding sliding grooves (h) may also be provided on the first half disc (3b) and the second half disc (3c), and the sliding directions of the sliding grooves (h) all point to the rotation centers of the first half disc (3b) and the second half disc (3c).

Images