Annular cutting mechanism and blanking device suitable for nuclear power pipe products

Abstract

The utility model provides a kind of annular cutting mechanism and blanking device suitable for nuclear power pipe product, annular cutting mechanism includes tool bit subassembly, feed drive assembly and ring cutting rotary drive device, tool bit subassembly includes slider block seat, propelling sleeve, two cutters and two tool bit seats, slider block seat is provided with containing passage, two tool bit seats are respectively arranged on the opposite sides of containing passage, two cutters are respectively arranged on corresponding tool bit seat, and the center axis line of two cutters passes through containing passage, propelling sleeve is sleeved in the outside of slider block seat, ring cutting rotary drive device drives tool bit subassembly to rotate around the axis of containing passage, feed drive assembly drives propelling sleeve to move along containing passage axial direction, to force two tool bit seats to move close to containing passage simultaneously, to force two cutters to move close to each other simultaneously;Blanking device includes above-mentioned annular cutting mechanism.The utility model can avoid pipe product cutting part deformation, ensure its roundness and improve its production quality.

Description

Technical Field

[0001] This utility model relates to the technical field of processing equipment for nuclear power pipe products, specifically to a ring cutting mechanism and feeding device suitable for nuclear power pipe products. Background Technology

[0002] Nuclear power plants require a variety of tubular products. Some tubular products are generally stored in rolls and cut to a fixed length when needed, requiring the use of a ring-shaped cutting mechanism.

[0003] Existing ring cutting mechanisms use a single cutter for ring cutting. Due to the force applied on one side, the inner hole of pipe products is prone to deformation, becoming elliptical. Elliptical pipe products will adversely affect the speed and flow rate of fluid inside. Utility Model Content

[0004] The primary objective of this invention is to provide a ring-shaped cutting mechanism suitable for nuclear power plant pipe products that can prevent deformation of pipe products and ensure their roundness.

[0005] The second objective of this invention is to provide a feeding device that includes the aforementioned annular cutting mechanism suitable for nuclear power plant pipe products.

[0006] To achieve the aforementioned first objective, this utility model provides a ring-shaped cutting mechanism suitable for nuclear power pipe products, comprising a cutter head assembly, a cutting drive assembly, and a ring-cutting rotary drive device. The cutter head assembly includes a slider seat, a cutter, a cutter head seat, and a pusher sleeve. The slider seat is provided with an axially extending receiving channel. The cutter is disposed on the cutter head seat and on one side of the receiving channel. The pusher sleeve is sleeved on the outside of the slider seat. The ring-cutting rotary drive device drives the cutter head assembly to rotate around the axis of the receiving channel. The cutting drive assembly drives the pusher sleeve to move axially along the receiving channel, thereby forcing the cutter head seat and the cutter to move radially closer to the receiving channel. The number of cutters and cutter head seats is set to two. The two cutter head seats are respectively disposed on opposite sides of the receiving channel. The two cutters are respectively disposed on corresponding cutter head seats, and the line connecting the central axes of the two cutters passes through the receiving channel. The pusher sleeve forces the two cutters to move closer to each other simultaneously.

[0007] As can be seen from the above scheme, by setting two cutters close to each other at the same time, the forces exerted by the two cutters on the tubular product can cancel each other out. Then, with the cooperation of the annular rotary drive device driving the entire cutter head assembly to rotate, the two cutters can cut the outer peripheral wall of the tubular product with uniform force, avoiding deformation of the cut part of the tubular product, resulting in better roundness of the inner hole of the tubular product, which is conducive to improving the quality of the tubular product.

[0008] A further approach is to make the distances from the central axes of the two cutters to the receiving channel equal.

[0009] As can be seen from the above scheme, the above settings help ensure that the two cutters cut simultaneously.

[0010] A further option is that the slider seat has two grooves opposite each other, and two cutter heads are respectively set in the corresponding grooves. One end of the cutter head is provided with an abutment, which protrudes from the peripheral wall of the slider seat.

[0011] A stop is provided between the two slides, and an elastic element is elastically abutting between the cutter head seat and the stop. Alternatively, the two slides are interconnected, and an elastic element is elastically abutting between the two cutter head seats.

[0012] As can be seen from the above scheme, under normal conditions, due to the action of the elastic element, the cutter moves away from the tubular product. When circumferential cutting is required, the cutter head moves radially inward, the elastic element is compressed, and the cutter approaches and cuts the tubular product. After the cutting is completed, under the elastic force of the elastic element, the cutter head and the cutter automatically move away from the tubular product.

[0013] A further option is to provide an annular groove on the propulsion sleeve;

[0014] The feed drive assembly includes a first drive power assembly, a movable seat, and a guide rail assembly. The movable seat is slidably mounted on one side of the cutter head assembly via the guide rail assembly. A pusher is provided on the movable seat and is inserted into an annular groove. The first drive power assembly drives the movable seat and the pusher to move back and forth. The pusher is in rolling or sliding connection with the annular groove.

[0015] As can be seen from the above scheme, with the above settings, the first driving power component drives the moving seat to perform translational movement, thereby driving the pusher to translate, and the pusher drives the propulsion sleeve to translate; with the above settings, while ensuring that the pusher can push the propulsion sleeve to translate, the friction between the propulsion sleeve and the pusher is reduced when the propulsion sleeve rotates around its axis.

[0016] A further design involves providing pushers on both sides of the movable base, with the two pushers positioned on either side of the annular groove.

[0017] As can be seen from the above scheme, by pushing the propulsion sleeve to translate simultaneously from both sides, the force on both sides of the propulsion sleeve is ensured to be uniform, which helps to ensure that the two cutters enter the blades at the same time and with equal depth of cut.

[0018] A further embodiment is that the first drive power assembly includes a first motor, a first transmission assembly, a lead screw, and a lead screw nut seat. The lead screw extends along the moving direction of the movable seat. The first motor drives the lead screw to rotate through the first transmission assembly. The lead screw nut seat is connected to the lead screw and the movable seat respectively.

[0019] As can be seen from the above scheme, by setting a lead screw drive, it is beneficial to ensure the accuracy of the moving distance of the moving seat, and thus ensure the accuracy of the cutting depth of the cutter.

[0020] A further option is to provide a threaded portion and a guide on the propulsion sleeve, with the guide extending along the axial direction of the propulsion sleeve;

[0021] The feed drive assembly includes a second drive power assembly, a drive wheel, and a limit seat. The drive wheel is threadedly connected to the threaded part. The limit seat has a limit groove and a guide groove. The drive wheel is partially inserted into the limit groove. The guide groove slides with the guide member. The second drive power assembly drives the drive wheel to rotate around its own axis, thereby forcing the feed sleeve to translate.

[0022] As can be seen from the above scheme, with the above settings, the second drive power component drives the power wheel to rotate. Since the limit seat restricts the movement of the power wheel on its axis, the propulsion sleeve can be forced to translate when the power wheel rotates.

[0023] A further option is to provide a fully enclosed component and a first transition connector on the propulsion sleeve. The fully enclosed component is located at one end of the propulsion sleeve and is integrally formed with the propulsion sleeve. The first transition connector is connected between the guide component and the fully enclosed component.

[0024] A further embodiment is that the propulsion sleeve is also provided with a first semi-enclosing part and a second semi-enclosing part. The first semi-enclosing part and the second semi-enclosing part are arranged opposite each other and form a mounting position. One end of the propulsion sleeve is set in the mounting position. The first semi-enclosing part, the second semi-enclosing part and the propulsion sleeve are separately arranged. The second semi-enclosing part is also connected to the guide.

[0025] To achieve the second objective mentioned above, this utility model provides a feeding device, including the aforementioned annular cutting mechanism suitable for nuclear power pipe products. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the first embodiment of the annular cutting mechanism of this utility model applicable to nuclear power pipe products.

[0027] Figure 2 This is a first-view cross-sectional view of the first embodiment of the annular cutting mechanism of this utility model applicable to pipe products for nuclear power.

[0028] Figure 3 This is a cross-sectional view from the second perspective of the first embodiment of the annular cutting mechanism of this utility model applicable to nuclear power pipe products.

[0029] Figure 4 This is a structural diagram of the feed drive assembly in the first embodiment of the annular cutting mechanism for nuclear power pipe products of this utility model.

[0030] Figure 5 This is an exploded view of the cutter head assembly in the first embodiment of the annular cutting mechanism for nuclear power pipe products of this utility model.

[0031] Figure 6 This is a structural diagram of the second embodiment of the annular cutting mechanism of this utility model applicable to nuclear power pipe products.

[0032] Figure 7 This is a cross-sectional view of the second embodiment of the annular cutting mechanism of this utility model applicable to nuclear power pipe products.

[0033] Figure 8 This is a structural diagram of the propulsion sleeve in the second embodiment of the annular cutting mechanism applicable to nuclear power pipe products of this utility model.

[0034] Figure 9 This is a structural diagram of the third embodiment of the annular cutting mechanism of this utility model applicable to nuclear power pipe products.

[0035] Figure 10 This is a structural diagram of the propulsion sleeve in the third embodiment of the annular cutting mechanism applicable to nuclear power pipe products of this utility model.

[0036] The present invention will be further described below with reference to the accompanying drawings and embodiments. Detailed Implementation

[0037] First embodiment of a ring-shaped cutting mechanism applicable to nuclear power pipe products:

[0038] See Figures 1 to 5 The annular cutting mechanism 10a provided in this embodiment, applicable to nuclear power pipe products, includes a mounting frame 1, a cutter head assembly 2, a cutting drive assembly 3a, and an annular cutting rotary drive device.

[0039] Mounting bracket 1 includes a base plate 11 and a vertical plate 12 mounted on the base plate 11.

[0040] The cutter head assembly 2 is vertically mounted on the upright plate 12 and positioned above the base plate 11. The cutter head assembly 2 includes a slider seat 21, a timing wheel sleeve 22, a feed sleeve 23a, two cutters 24, and two cutter head seats 25. The slider seat 21 is located on the first end of the timing wheel sleeve 22, and has an axially extending receiving channel in its middle for accommodating tubular products 20. The slider seat 21 has two opposing grooves 211, each with an outward-facing opening. The two cutter head seats 25 are respectively positioned within their corresponding grooves 211, and each cutter head seat 25 has an abutment portion at one end. This abutment portion protrudes from the opening of the groove 211 and from the peripheral wall of the slider seat 21, for contacting the feed sleeve 23a. The abutment portion has a first inclined surface.

[0041] In this embodiment, a stop 212 is provided between the two slides 211, and an elastic element 213 is elastically abutted between the cutter head seat 25 and the stop 212. The elastic element 213 is preferably a spring.

[0042] In other embodiments, the two grooves are interconnected, and an elastic element is elastically abutting between the two cutter head seats.

[0043] Two cutters 24 are respectively mounted on corresponding cutter head seats 25, and the line connecting the central axes of the two cutters 24 passes through the receiving channel. Furthermore, the distances from the central axes of the two cutters 24 to the receiving channel are equal. Under normal conditions, the cutter head seat 25 partially protrudes from the groove opening of the slide groove 211, at which time the cutter 24 is away from the pipe product 20 in the receiving channel.

[0044] The circumferential cutting rotary drive device includes a rotary drive motor (not shown in the figure) and a cutter head transmission assembly. The rotary drive motor drives the entire cutter head assembly 2 to rotate around the axis of the receiving channel through the cutter head transmission assembly. The cutter head transmission assembly can be a belt drive assembly or a chain drive assembly. In this embodiment, the former is preferred. The cutter head transmission assembly includes a cutter head driving wheel (not shown in the figure), a cutter head driven wheel 4, and a transmission belt (not shown in the figure). The cutter head driving wheel is mounted on the drive shaft of the rotary drive motor, the cutter head driven wheel 4 is sleeved on the second end of the synchronous pulley sleeve 22, and the transmission belt is wound between the cutter head driving wheel and the cutter head driven wheel 4.

[0045] The feed sleeve 23a is sleeved on the outside of the timing pulley sleeve 22 and the slider seat 21. The feed drive assembly 3a drives the feed sleeve 23a to move back and forth along the axial direction of the receiving channel. A second inclined surface matching the first inclined surface is provided on the inner side of the feed sleeve 23a.

[0046] When the push sleeve 23a moves toward the end where the slider seat 21 is located, the push sleeve 23a simultaneously pushes the two cutter head seats 25 to move radially inward, so that the two cutters 24 simultaneously move closer to the center of the receiving channel, realizing the cutting operation. When the circumferential cutting is completed, the push sleeve 23a moves in the opposite direction, and under the action of the elastic element 213, the two cutter head seats 25 move radially outward, so that the two cutters 24 move away from the receiving channel, realizing the cutting operation.

[0047] Combination Figure 1 , Figure 4 and Figure 5 An annular groove 231 is provided on the outer side of the push sleeve 23a.

[0048] The feed drive assembly 3a includes a first drive power assembly 31, a moving base 32, and two guide rail assemblies 33.

[0049] The movable base 32 is slidably mounted on the base plate 11 via two guide rail assemblies 33 and is positioned below the cutter head assembly 2. Pushing members 321 are provided on both sides of the movable base 32, and the pushing members 321 can be inserted into the annular groove 231. The two pushing members 321 are respectively located on both sides of the annular groove 231, facilitating simultaneous translation of the push sleeve 23a from both sides.

[0050] The pusher 321 is either rolled or slidably connected to the annular groove 231, with the former being preferred in this embodiment. In this embodiment, the rolling connection refers to achieving relative movement between components through rolling friction instead of sliding friction. The pusher 321 includes a mounting shaft and a rolling element sleeved on one end of the mounting shaft. The outer diameter of the rolling element is equal to or slightly smaller than the groove width of the annular groove 231. When the moving seat 32 translates, the rolling element immediately pushes the pusher seat to move.

[0051] The rolling element is fixedly connected to the mounting shaft. When the push sleeve 23a rotates, there is sliding friction between the rolling element and the push sleeve 23a. Alternatively, the rolling element can rotate around the mounting shaft, and when the push sleeve 23a rotates, there is rolling friction between the rolling element and the push sleeve 23a. In this case, the rolling element is a roller or a bearing.

[0052] The first drive power assembly 31 can drive the movable seat 32 and the pusher 321 to move back and forth. The first drive power assembly 31 can be a cylinder drive assembly, a hydraulic cylinder drive assembly, or a motor drive assembly. In order to accurately control the moving distance of the movable seat 32, this embodiment preferably uses a motor drive assembly. Specifically:

[0053] The first drive power assembly 31 includes a first motor 311, a first transmission assembly 312, a lead screw 313, a lead screw nut seat 314, and a fixed seat 315. The fixed seat 315 is mounted on the base plate 11 and positioned below the cutter head assembly 2. The lead screw 313 extends along the axis of the feed sleeve 23a and passes through both sides of the fixed seat 315. The first motor 311 drives the lead screw 313 to rotate via the first transmission assembly 312, which can be a belt drive assembly or a chain drive assembly. The lead screw nut seat 314 is positioned between the fixed seat 315 and the vertical plate 12, and is connected to both the lead screw 313 and the movable seat 32. When the first motor 311 drives the lead screw 313 to rotate in both directions, the lead screw nut seat 314 can drive the movable seat 32 to move back and forth linearly.

[0054] exist Figure 2In the process, the cutter head assembly 2 also includes a cutter head spindle 26, a bushing 27, and a rotating sleeve 28. The cutter head spindle 26 is inserted into the synchronous pulley sleeve 22, and the bushing 27 is inserted into the cutter head spindle 26. A first through hole is formed in the bushing 27. The rotating sleeve 28 is located at the center of the slider seat 21. A second through hole is formed in the rotating sleeve 28. The first through hole and the second through hole are coaxially arranged and communicate with each other. The receiving channel includes the first through hole and the second through hole.

[0055] Second embodiment of a ring-shaped cutting mechanism applicable to nuclear power pipe products:

[0056] See Figures 6 to 8 Based on the first embodiment of the annular cutting mechanism applicable to nuclear power pipe products, the annular cutting mechanism 10b applicable to nuclear power pipe products in this embodiment mainly improves the propulsion sleeve 23b and the infeed drive assembly 3b.

[0057] In this embodiment, the propulsion sleeve 23b is provided with a threaded portion 232 and a guide member 233. The threaded portion 232 is provided on the outer peripheral wall of the propulsion sleeve 23b, and the guide member 233 is provided above the propulsion sleeve 23b and extends along the axial direction of the propulsion sleeve 23b. The guide member 233 is fixedly connected to the propulsion sleeve 23b.

[0058] The feed drive assembly 3b in this embodiment includes a second drive power assembly 34, a power wheel 35, and a limiting seat 36. One end of the limiting seat 36 is fixed to the vertical plate 12, and the other end of the limiting seat 36 has a limiting groove 361 and a guide groove 362. The limiting groove 361 is disposed on the bottom wall of the limiting seat 36 and opens downward, and the extending direction of the limiting groove 361 is perpendicular to the axial direction of the feed sleeve 23b. The guide groove 362 is disposed on the top wall of the limiting seat 36 and extends along the axial direction of the feed sleeve 23b.

[0059] The drive wheel 35 is threaded onto the threaded portion 232, and is partially inserted into the limiting groove 361, which restricts the axial movement of the drive wheel 35 along the propulsion sleeve 23b. The guide groove 362 slides with the guide member 233, providing guidance. The second drive power assembly 34 includes a second motor and a second transmission assembly. The second transmission assembly is either a belt drive assembly or a chain drive assembly; in this embodiment, a belt drive assembly is preferred. The second motor drives the drive wheel 35 to rotate around its own axis via the second transmission assembly, which, with the cooperation of the limiting groove 361, forces the propulsion sleeve 23b to translate.

[0060] The propulsion sleeve 23b is also provided with a hollow enclosing member 234 and a first transition connector 235. The enclosing member 234 is located at one end of the propulsion sleeve 23b and is integrally formed with the propulsion sleeve 23b. The first transition connector 235 connects the guide member 233 and the enclosing member 234 to achieve a fixed connection between the guide member 233 and the propulsion sleeve 23b.

[0061] Third embodiment of a ring-shaped cutting mechanism applicable to nuclear power pipe products:

[0062] See Figures 9 to 10 Based on the second embodiment of the annular cutting mechanism applicable to nuclear power pipe products described above, the annular cutting mechanism 10c applicable to nuclear power pipe products in this embodiment mainly improves the propulsion sleeve 23c.

[0063] In this embodiment, the propulsion sleeve 23c is further provided with a first semi-enclosing member 236 and a second semi-enclosing member 237. The first semi-enclosing member 236 and the second semi-enclosing member 237 are arranged opposite each other and form a hollow mounting position. One end of the propulsion sleeve 23c is disposed in the mounting position. The first semi-enclosing member 236, the second semi-enclosing member 237 and the propulsion sleeve 23c are separately provided. The first semi-enclosing member 236 is arc-shaped and the second semi-enclosing member 237 is inverted "Y"-shaped. The upper part of the second semi-enclosing member 237 is also connected to the guide member 233 to achieve a fixed connection between the guide member 233 and the propulsion sleeve 23c.

[0064] Example of feeding device:

[0065] The feeding device provided in this embodiment includes a feeding mechanism, a straightening mechanism, a feeding mechanism, a ring-shaped cutting mechanism suitable for nuclear power pipe products, and a feeding mechanism arranged sequentially. The ring-shaped cutting mechanism suitable for nuclear power pipe products in this embodiment is any of the ring-shaped cutting mechanisms suitable for nuclear power pipe products described in the above embodiments. The feeding mechanism is used to feed the rolled nuclear power pipe products, the straightening mechanism is used to straighten the rolled material, the feeding mechanism provides the forward movement power for the nuclear power pipe products, and the ring-shaped cutting mechanism is used to cut the nuclear power pipe products to obtain nuclear power pipe products of a preset length.

[0066] In one embodiment, a breaking mechanism can also be provided between the annular cutting mechanism and the feeding mechanism. In this case, the annular cutting mechanism only needs to cut a slit on the peripheral wall of the nuclear power pipe product, and then the left and right sides of the annular slit are separated under the action of the breaking mechanism to obtain a nuclear power pipe product of a preset length.

[0067] In summary, by setting two cutters 24 close to each other simultaneously, the forces exerted by the two cutters on the tubular product 20 can cancel each other out. Then, with the cooperation of the annular rotary drive device driving the entire cutter head assembly 2 to rotate, the two cutters 24 can cut the outer peripheral wall of the tubular product 20 with uniform force, avoiding deformation of the cut part of the tubular product 20, resulting in better roundness of the inner hole of the tubular product 20, which is beneficial to improving the quality of the tubular product 20.

[0068] Finally, it should be emphasized that the above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A ring-shaped cutting mechanism applicable to nuclear power pipe products, comprising a cutter head assembly, a cutting drive assembly, and a ring-cutting rotary drive device, wherein the cutter head assembly includes a slider seat, a cutter, a cutter head holder, and a pusher sleeve, the slider seat has an axially extending receiving channel in its center, the cutter is disposed on the cutter head holder and on one side of the receiving channel, the pusher sleeve is sleeved on the outside of the slider seat, the ring-cutting rotary drive device drives the cutter head assembly to rotate around the axis of the receiving channel, and the cutting drive assembly drives the pusher sleeve to move axially along the receiving channel, thereby forcing the cutter head holder and the cutter to move radially closer to the receiving channel, characterized in that: The number of cutters and cutter head seats is set to two. The two cutter head seats are respectively set on opposite sides of the receiving channel. The two cutters are respectively set on the corresponding cutter head seats, and the line connecting the central axes of the two cutters passes through the receiving channel. The push sleeve forces the two cutters to move closer to each other at the same time.

2. The annular cutting mechanism for nuclear power plant pipe products according to claim 1, characterized in that: The distances from the central axes of the two cutters to the receiving channel are equal.

3. The annular cutting mechanism for nuclear power plant pipe products according to claim 1, characterized in that: The slider seat has two grooves opposite each other, and the two cutter heads are respectively disposed in the corresponding grooves. One end of each cutter head is provided with an abutment, which protrudes from the peripheral wall of the slider seat. A stop is provided between the two slides, and an elastic element is elastically abutting between the cutter head seat and the stop. Alternatively, the two slides are interconnected, and an elastic element is elastically abutting between the two cutter head seats.

4. The annular cutting mechanism for nuclear power plant pipe products according to claim 1, characterized in that: The propulsion sleeve is provided with an annular groove; The feed drive assembly includes a first drive power assembly, a movable seat, and a guide rail assembly. The movable seat is slidably disposed on one side of the cutter head assembly via the guide rail assembly. A pusher is disposed on the movable seat and inserted into the annular groove. The first drive power assembly drives the movable seat and the pusher to move back and forth. The pusher is in a rolling or sliding connection with the annular groove.

5. The annular cutting mechanism for nuclear power plant pipe products according to claim 4, characterized in that: The movable seat is provided with the pushing member on both sides, and the two pushing members are respectively provided on both sides of the annular groove.

6. The annular cutting mechanism for nuclear power plant pipe products according to claim 4, characterized in that: The first driving power assembly includes a first motor, a first transmission assembly, a lead screw, and a lead screw nut seat. The lead screw extends along the moving direction of the movable seat. The first motor drives the lead screw to rotate through the first transmission assembly. The lead screw nut seat is connected to both the lead screw and the movable seat.

7. The annular cutting mechanism for nuclear power plant pipe products according to claim 1, characterized in that: The propulsion sleeve is provided with a threaded portion and a guide member, the guide member extending along the axial direction of the propulsion sleeve; The feed drive assembly includes a second drive power assembly, a drive wheel, and a limiting seat. The drive wheel is threadedly connected to the threaded portion. The limiting seat has a limiting groove and a guide groove. The drive wheel is partially inserted into the limiting groove. The guide groove is slidably engaged with the guide member. The second drive power assembly drives the drive wheel to rotate around its own axis, thereby forcing the feed sleeve to translate.

8. The annular cutting mechanism for nuclear power plant pipe products according to claim 7, characterized in that: The propulsion sleeve is also provided with a full enclosure and a first transition connector. The full enclosure is disposed at one end of the propulsion sleeve and is integrally formed with the propulsion sleeve. The first transition connector is connected between the guide and the full enclosure.

9. The annular cutting mechanism for nuclear power plant pipe products according to claim 7, characterized in that: The propulsion sleeve is also provided with a first semi-enclosing member and a second semi-enclosing member. The first semi-enclosing member and the second semi-enclosing member are arranged opposite each other and form a mounting position. One end of the propulsion sleeve is disposed in the mounting position. The first semi-enclosing member, the second semi-enclosing member and the propulsion sleeve are separately disposed. The second semi-enclosing member is also connected to the guide member.

10. A feeding device, characterized in that: Includes the annular cutting mechanism applicable to nuclear power pipe products as described in any one of claims 1 to 9 above.

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