Rotary cutting die and rotary cutting device

Abstract

The utility model relates to a rotary cutting die and a rotary cutting device, and relates to the technical field of machining. The rotary cutting die comprises a first die body, a second die body and a waste cutting knife, the first die body is used for supporting the inner surface of the to-be-machined part, the second die body is used for being arranged on the outer surface of the to-be-machined part in a sleeving mode, and the first die body and the second die body rotate relatively for feeding so that cutting can be conducted in the circumferential direction of the to-be-machined part, and waste can be separated out; and the waste cutting knife is connected with one of the first mold and the second mold, and the waste cutting knife is constructed to synchronously move along with the one connected with the waste cutting knife so as to cut off the waste. The waste cutting knife and the die where the waste cutting knife is located move synchronously, so that the separated waste can be cut off along with the die while the waste is formed, after the waste is cut off, the waste can fall off automatically under the action of gravity, manual stripping operation is omitted, and the machining efficiency of the rotary cutting device is improved.

Description

Technical Field

[0001] The present application belongs to the field of mechanical processing technology, and in particular relates to a rotary cutting mold and a rotary cutting device. Background Art

[0002] Some cylindrical parts to be processed, such as the inner tank head of a water heater, are usually formed by stamping or spinning. After stamping or spinning, there is still waste material on the end edge that needs to be removed.

[0003] In the prior art, the workpiece is peeled by a peeling device to remove the waste. The peeling die of the peeling device includes a male die for supporting the inner side of the workpiece, and a female die matching the male die and sleeved on the outer side of the workpiece. The male die and the female die rotate and feed relative to each other to cut off the waste in a ring shape.

[0004] However, the annular waste will be hooped on the punch after being cut off, and needs to be manually peeled off and removed, which makes the rotary cutting process inefficient. Utility Model Content

[0005] The present application provides a rotary cutting mold and a rotary cutting device to solve the problem of low processing efficiency of the existing rotary cutting device.

[0006] On the one hand, the present application provides a rotary cutting die, comprising a first die, a second die and a waste cutting knife, wherein the first die is used to support the inner surface of a workpiece to be processed, and the second die is used to be sleeved on the outer surface of the workpiece to be processed, and the first die and the second die are relatively rotated and fed to cut along the circumference of the workpiece to be processed and separate the waste;

[0007] The scrap cutting knife is connected to one of the first die and the second die, and the scrap cutting knife is configured to move synchronously with the one connected to itself to cut off the scrap.

[0008] In a possible implementation, the rotary cutting die provided in the present application has at least two waste cutting knives, and the waste cutting knives are spaced apart along the cutting track of the workpiece to be processed so as to cut the waste into at least two sections.

[0009] In one possible implementation, the rotary cutting die provided in the present application, the waste cutting knife includes a cutter head and a cutter seat connected to each other, the cutter seat is connected to the side of the second die facing the first die, the cutter head has a blade, and the blade extends out of the cutter seat for cutting off the waste.

[0010] In a possible implementation, the rotary cutting mold provided in the present application has a cutter head provided with at least two blades, each blade being arranged on at least two sides of the cutter head respectively and relatively, and one of the blades faces the outer side wall of the first mold.

[0011] In a possible implementation, the rotary cutting die provided in the present application further includes a fastener, and the second die is provided with a mounting groove adapted to the tool holder, and the tool holder is detachably connected to the mounting groove via the fastener.

[0012] In a possible implementation, the rotary cutting die provided in the present application has a cutter head rotatably connected to a cutter seat.

[0013] In a possible implementation, the rotary cutting die provided in the present application has one end of the blade abutting against the end surface of the second die, and the blade is connected to the cutting trajectory of the workpiece to be processed.

[0014] In a possible implementation, the rotary cutting die provided in the present application has two intersecting cutting surfaces on the side of the cutter head, the cutting surfaces are respectively arranged to be inclined relative to the cutting trajectory of the workpiece to be processed, and the intersection line of the two cutting surfaces forms a cutting edge.

[0015] In one possible implementation, the rotary cutting mold provided in the present application is provided with a groove adapted to the outer wall of the first mold on the second mold, and a rotary cutter is provided on at least one of the groove and the outer wall, and the rotary cutter is used to cut the workpiece to be processed along the circumference of the workpiece to be processed.

[0016] On the other hand, the present application provides a rotary cutting device, comprising a device body and any one of the above-mentioned rotary cutting molds, wherein the rotary cutting mold is connected to the device body.

[0017] The present application provides a rotary cutting mold and a rotary cutting device, wherein a waste cutting knife is provided on one of the first mold and the second mold of the rotary cutting mold, so that the first mold and the second mold can be relatively rotated and fed, and the circumference of the workpiece to be processed is cut to separate the waste. The waste cutting knife moves synchronously with the mold where it is located, so that the separated waste can be cut off with the mold while the waste is formed, avoiding the formation of closed annular waste. After the waste is cut off, it will not be able to be tightly clamped on the first mold, and it is easy to fall by itself under the action of gravity, thereby eliminating the manual peeling operation, saving the corresponding operation time, and thereby speeding up the production rhythm of the workpiece to be processed, and realizing the improvement of the processing efficiency of the rotary cutting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0019] The preferred technical implementation scheme of the present application is described below with reference to the accompanying drawings. The accompanying drawings are:

[0020] Figure 1 A schematic diagram of the structure of the rotary cutting mold provided in the embodiment of the present application;

[0021] Figure 2 for Figure 1Schematic diagram of the structure of the middle cutting waste knife;

[0022] Figure 3 for Figure 1 The use status of rotary cutting mold Figure 1 ;

[0023] Figure 4 for Figure 1 The use status of rotary cutting mold Figure 2 ;

[0024] Figure 5 for Figure 1 Schematic diagram of the cut-in of the center-cut scrap knife.

[0025] Description of reference numerals:

[0026] 100-first mold; 110-outer side wall;

[0027] 200 - second mold; 210 - mounting groove; 220 - groove;

[0028] 300-waste cutting knife; 310-knife head; 311-blade; 312-cutting surface; 320-knife seat;

[0029] 400-Parts to be processed; 410-Waste.

[0030] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] The terms "first", "second", "third", "fourth", etc. (if any) in the specification and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein, for example.

[0033] In the embodiments of the present application, the words "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0034] As described in the background art, some cylindrical parts to be processed, such as the inner tank cover of a water heater, are usually formed by stamping or spinning. After stamping or spinning, there are still waste materials at the end edges that need to be removed.

[0035] In the prior art, the workpiece is peeled by a peeling device. The peeling device includes a device body and a peeling die. The device body includes a frame for supporting the peeling die, a driving system for driving the peeling die to feed, and a collection trough arranged under the frame for receiving waste. The peeling die includes a convex die for supporting the inner side of the workpiece to be processed, and a concave die matching the convex die and sleeved on the outer side of the workpiece to be processed. The convex die and the concave die are rotated and fed relative to each other to cut off the waste in a ring shape.

[0036] However, the ring-shaped waste will be hooped on the punch after being cut, and the operator needs to use special tools or manually peel it off, which slows down the production pace and reduces the efficiency of the rotary cutting process.

[0037] In order to solve the above problems, the present application provides a rotary cutting mold and a rotary cutting device. The rotary cutting mold is provided with a waste cutting knife, which can cut off the waste while the rotary cutting mold separates the waste by circumferential cutting of the workpiece, so that the waste falls by itself due to gravity, avoiding manual peeling, and improving the processing efficiency of the rotary cutting device.

[0038] The following is a detailed introduction to the structure and various possible implementation forms of the peeling mold and peeling device provided by the present application in combination with specific implementation methods.

[0039] Figures 1 to 5 The schematic diagram of each component of the rotary cutting mold is shown. The specific structure of the remaining components of the rotary cutting mold is not limited to Figures 1 to 5 of examples.

[0040] On the one hand, the present application provides a rotary cutting die, comprising a first die 100, a second die 200 and a waste cutting knife 300, wherein the first die 100 is used to support the inner surface of a workpiece 400 to be processed, and the second die 200 is used to be sleeved on the outer surface of the workpiece 400 to be processed, and the first die 100 and the second die 200 are relatively rotated and fed to cut along the circumference of the workpiece 400 to be processed and separate the waste 410;

[0041] The scrap cutting knife 300 is connected to one of the first die 100 and the second die 200 , and the scrap cutting knife 300 is configured to move synchronously with the one connected thereto to cut off the scrap 410 .

[0042] It can be understood that the first mold 100 and the second mold 200 are matched and distributed up and down. The first mold 100 is usually set as a convex mold, and the convex part of the convex mold extends into the inner side of the workpiece 400 to be processed, and abuts against the inner side wall of the workpiece 400 to be processed (such as the inner tank head of the water heater), so that the relative position of the workpiece 400 to be processed and the first mold 100 is stable, and the second mold 200 is set as a concave mold matching the convex mold, and the concave mold is used to be set on the outer side wall 110 of the workpiece 400 to be processed.

[0043] Figure 1 The arc with arrows shown in the figure is a partial cutting trajectory of the workpiece 400 to be processed. The arrows exemplarily indicate the direction of the cutting trajectory. In other embodiments, the reverse cutting along the arrow arc can also be performed. The concave mold and the convex mold are configured to rotate and feed relative to each other along the circumferential cutting trajectory of the workpiece 400 to be processed, so as to separate the waste material 410 from the workpiece 400 to be processed. Specifically, the relative rotation feeding can be that one of the convex mold and the concave mold translates and cuts along the circumferential cutting trajectory of the workpiece 400 relative to the other, and the other moves up and down along the axial direction of the workpiece 400 to cut off the waste material 410. The operator can remove the waste material 410 along the axial direction of the first mold 100 so that the rotary cutting operation can be carried out smoothly again; or one of the convex mold and the concave mold rotates and cuts relative to the other along the circumferential cutting trajectory of the workpiece 400 to be processed, and the other moves up and down along the axial direction of the workpiece 400 to be processed. This application does not limit this.

[0044] The scrap cutter 300 is connected to one of the first mold 100 and the second mold 200, and is located at the side facing the scrap 410. When the first mold 100 and the second mold 200 cut the workpiece 400, the scrap cutter 300 will move synchronously with the one in which it is located, and when the scrap cutter 300 moves to contact the scrap 410, the scrap 410 will be further cut off.

[0045] It should be noted that, since the waste cutting knife 300 moves synchronously with the one of the molds in which it is located, the waste 410 is cut off before the two molds are peeled and separated into a complete annular waste 410. After the waste 410 is cut off, due to the fracture in its structure, it is impossible to form a closed annular structure after peeling, and it is difficult to be tightly clamped on the first mold 100, so that the waste 410 is easy to fall off from the first mold 100 by gravity, avoiding the operator to remove the waste 410.

[0046] Therefore, the waste cutting knife 300 is provided on one of the first mold 100 and the second mold 200 of the rotary cutting mold provided by the present application. The waste cutting knife 300 can cut off the separated waste 410 along with the mold while forming the waste 410, so as to avoid forming a closed annular waste 410. After being cut off, the waste 410 will not be tightly clamped on the first mold 100, and it is easy to fall by itself under the action of gravity, thereby eliminating the manual peeling operation, saving the corresponding operation time, and thereby speeding up the production rhythm of the workpiece 400 to be processed, and realizing the improvement of the processing efficiency of the rotary cutting device.

[0047] In some embodiments, Figure 1 , Figure 3 and Figure 4 As shown, at least two waste cutting knives 300 are provided, and each waste cutting knives 300 is distributed at intervals along the cutting track of the workpiece 400 to be processed, so as to cut the waste 410 into at least two sections.

[0048] It can be understood that by providing at least two spaced-apart waste cutting knives 300, when the first mold 100 and the second mold 200 are rotary cutting, each waste cutting knife 300 can cut the waste 410 in sequence as the rotary cutting proceeds to form at least two arc-shaped waste 410. The waste 410 therefore lacks an effective fulcrum between the first mold 100 and falls down by itself when cut by the waste cutting knife 300, making the removal of the waste 410 faster and more efficient.

[0049] Exemplarily, in this embodiment, four waste cutting knives 300 are evenly spaced along the cutting track of the workpiece 400 to be processed, so as to cut the waste 410 into four sections in turn, so as to facilitate the waste 410 to fall quickly and avoid the waste 410 from getting stuck with the first mold 100 or the blanking hole below. In other embodiments, the number of waste cutting knives 300 can be reduced, and two or three waste cutting knives 300 can be set to form waste 410 with a larger arc, which is lower in cost, but may get stuck with the blanking hole, and the operator needs to assist in peeling when necessary; or the number of waste cutting knives 300 can be increased, and five or more waste cutting knives 300 can be set to obtain waste 410 with more sections and smaller sizes at a higher production cost, further improve the removal efficiency of waste 410, and speed up the production rhythm. This application does not limit this.

[0050] In some embodiments, reference is made to Figure 2 and Figure 3 As shown, the waste cutting knife 300 includes a cutter head 310 and a cutter seat 320 connected to each other. The cutter seat 320 is connected to the side of the second mold 200 facing the first mold 100 . The cutter head 310 has a blade 311 . The blade 311 extends out of the cutter seat 320 for cutting off the waste 410 .

[0051] It can be understood that the knife seat 320 is connected to the side of the second mold 200 facing the first mold 100, that is, the waste cutting knife 300 is arranged on the second mold 200 and moves synchronously with the second mold 200. The cutter head 310 is connected to the knife seat 320 and is located on the side of the second mold 200 close to the waste 410, and the blade 311 of the cutter head 310 extends out of the knife seat 320 to prevent the knife seat 320 from interfering with the blade 311 in cutting the waste 410.

[0052] It should be noted that the waste cutting knife 300 is disposed on a side surface of the second mold 200 facing the first mold 100 and is disposed close to the waste 410 so as to cut off the waste 410 from the outside to the inside in the radial direction of the first mold 100 .

[0053] In other embodiments, the waste cutting knife 300 can also be set on the first mold 100, so that the waste 410 is located between the waste cutting knife 300 and the second mold 200. The waste cutting knife 300 moves along with the first mold 100 close to the second mold 200, and cuts off the waste 410 along the axial direction of the first mold 100. The present application does not limit the specific setting position of the waste cutting knife 300, as long as it can smoothly cut off the waste 410 and does not hinder the waste 410 from falling.

[0054] Further, such as Figure 1 and Figure 2 As shown, the cutter head 310 is provided with at least two cutting edges 311 , and each cutting edge 311 is respectively disposed on at least two sides of the cutter head 310 , and one of the cutting edges 311 faces the outer side wall 110 of the first mold 100 .

[0055] It can be understood that a plurality of blades 311 are provided on a waste cutting knife 300, and the blades 311 do not interfere with each other, so that one of the blades 311 serves as a working blade 311, facing the outer wall 110 of the first mold 100, and cutting off the waste 410 along the radial direction of the first mold 100, and the other blades 311 serve as spare blades 311. After the working blade 311 is damaged, the installation direction of the waste cutting knife 300 can be adjusted so that any other spare blade 311 can serve as a working blade 311 to continue cutting the waste 410.

[0056] Therefore, the reuse rate of the waste cutting knife 300 can be improved, the service life of the waste cutting knife 300 can be extended, and the replacement cost can be reduced.

[0057] Exemplarily, two blades 311 may be provided, and the two blades 311 face in opposite directions, or three or four blades 311 may be provided, and the angles between the blades 311 remain consistent.

[0058] It should be noted that Figure 2The cutter head 310 shown in the figure is provided with two blades 311 and can be installed from two directions, so the cutter seat 320 is set to a rectangle with rounded corners. When three blades 311 are provided on the cutter head 310, the cutter seat 320 can be set to a triangle or hexagon with three installation directions. Similarly, when four blades 311 are provided on the cutter head 310, the cutter seat 320 can be set to a square or octagon with four installation directions. The present application does not impose any restrictions on this.

[0059] In some embodiments, fasteners are also included, and the second mold 200 is provided with a mounting groove 210 adapted to the knife seat 320, and the knife seat 320 is detachably connected to the mounting groove 210 via the fasteners.

[0060] The blade holder 320 is detachably connected to the second mold 200 by fasteners, which facilitates the disassembly and assembly of the waste cutting blade 300, making the use of the rotary cutting mold more convenient and quick. The installation direction of the waste cutting blade 300 can also be changed by disassembling and assembling the waste cutting blade 300, so that different blades 311 can be used as working blades 311.

[0061] In other embodiments, if the waste cutting knife 300 is connected to the first mold 100 , a corresponding installation groove 210 may also be provided on the first mold 100 .

[0062] In a specific implementation, the fastener may be a screw or a bolt, and a threaded hole connected to the mounting groove 210 is provided on the first mold 100 or the second mold 200. The fastener is screwed into the threaded hole and the rear end thereof is pressed against the side of the tool holder 320 to fix the tool holder 320 in the mounting groove 210, or corresponding threaded holes may be provided on the tool holder 320 and the mounting groove 210 so that the fastener passes through the threaded holes of the two to fix the tool holder 320 in the mounting groove 210. The present application does not impose any restrictions on this.

[0063] Furthermore, regardless of whether the waste cutting knife 300 is installed on the first mold 100 or the second mold 200, its installation direction is always kept perpendicular to the cutting direction, that is, the force direction of the waste cutting knife 300 during cutting will not generate a component force along the installation direction of the waste cutting knife 300, and will not affect the stability of the installation of the waste cutting knife 300. Therefore, in other instances, a magnetic adsorption part can also be provided between the knife seat 320 and the installation groove 210 as a fastener, and the disassembly and assembly of the waste cutting knife 300 can be achieved through the magnetic adsorption part, which is more convenient and quick.

[0064] Specifically, the cutter head 310 is rotatably connected to the cutter seat 320 .

[0065] It is easy to understand that the cutter head 310 is rotatably connected to the cutter seat 320, and the center of the cutter head 310 rotates relative to the cutter seat 320 along the axial direction of the first mold 100. After the working blade 311 is damaged, the other spare blades 311 can be rotated to the position of the working blade 311 by directly rotating the cutter head 310, without having to disassemble the waste cutter 300 and reverse the direction, which is simple and quick to operate.

[0066] It should be noted that while the cutter head 310 and the cutter seat 320 are rotatably connected, a limiting structure is also required to be provided between the cutter head 310 and the cutter seat 320, so that after the cutter head 310 is rotated into place, the cutter head 310 and the cutter seat 320 are relatively fixed to prevent the cutter head 310 from deflecting when cutting the waste material 410. Specifically, the existing rotating structure and limiting structure can be adopted, and this application does not limit this.

[0067] In addition, if Figures 2 to 4 As shown, one end of the blade 311 abuts against the end surface of the second mold 200 , and the blade 311 is connected to the cutting track of the workpiece 400 to be processed.

[0068] It can be understood that when the waste 410 is separated from the workpiece 400 to be processed, one side of the waste 410 is basically in contact with the end face of the second mold 200, so after the waste 410 knife is installed, one end of the blade 311 is against the end face of the second mold 200, and the length of the blade 311 is further made greater than the thickness of the waste 410, so that it can be ensured that the blade 311 can completely cut off the waste 410 along the axial direction of the first mold 100, even if there is a gap between the waste 410 and the end face of the second mold 200, it can also be completely cut off.

[0069] Furthermore, by making the blade 311 connect with the cutting trajectory of the workpiece 400 to be processed, when the second mold 200 is fed relative to the first mold 100, it can be ensured that the cutter head 310 is also fed into place, ensuring the cutting depth of the blade 311, and being able to stably cut off the waste 410 from the radial direction of the first mold 100, thereby ensuring the accuracy and efficiency of the waste cutting knife 300 in cutting the waste 410.

[0070] And, refer to Figures 1 to 5 As shown, the side of the cutter head 310 has two intersecting cutting surfaces 312 , the cutting surfaces 312 are respectively arranged to be inclined relative to the cutting trajectory of the workpiece 400 , and the intersection line of the two cutting surfaces 312 forms a cutting edge 311 .

[0071] It can be understood that an inclined cutting surface 312 is set on the side of the cutter head 310, and the intersection line of the two cutting surfaces 312 forms a blade 311. The specific number of cutting surfaces 312 depends on the number of blades 311 set, and the blade 311 structure is integrally machined on the cutter head 310, and there is no need to add a separate component to the cutter head 310 as the blade 311. The overall structure of the cutter head 310 and the waste cutting knife 300 can be simple and compact, thereby reducing the production and processing cost of the waste cutting knife 300.

[0072] Figure 5 Arrow arc and Figure 1 The arrow arcs in the figure are consistent, indicating part of the oblique cutting trajectory. The two perpendicular dotted lines are the tangent of the blade 311 at the cutting point and the perpendicular line of the tangent respectively. The two solid lines are two intersecting cutting surfaces 312. The two cutting surfaces 312 are inclined relative to the cutting trajectory of the workpiece 400. Specifically, they can be symmetrically inclined along the perpendicular line of the tangent at the cutting point on the cutting trajectory to form a V-shaped structure. And by adjusting the intersection angle of the two cutting surfaces 312, the inclination direction of the blade 311 can be adjusted. Specifically, the blade 311 can be parallel to the axis of the first mold 100, or the blade 311 can be inclined relative to the axial direction of the first mold 100. This application does not limit this.

[0073] In addition, the second mold 200 is provided with a groove 220 adapted to the outer wall 110 of the first mold 100 , and at least one of the groove 220 and the outer wall 110 is provided with a rotary cutter for cutting the workpiece 400 along its circumference.

[0074] It can be understood that, by providing a groove 220 on the second mold 200 that is compatible with the outer wall 110 of the first mold 100, the second mold 200 can be sleeved on the workpiece 400 to be processed, and by providing a rotary cutter on at least one of the groove 220 and the outer wall 110 of the first mold 100, circumferential cutting of the workpiece 400 to be processed can be achieved through relative rotation feeding of the first mold 100 and the second mold 200.

[0075] Typically, spiral annular rotary cutters are provided on the groove 220 and the outer wall 110. The two rotary cutters rotate relative to each other and engage in sequence along the cutting path of the workpiece 400 to cut the waste material 410 in an annular shape. The present application does not limit the specific configuration of the rotary cutter.

[0076] On the other hand, the present application provides a rotary cutting device, comprising a device body and any one of the above-mentioned rotary cutting molds, wherein the rotary cutting mold is connected to the device body.

[0077] The structure and principle of the rotary cutting mold have been explained in the above embodiments and will not be repeated here.

[0078] In specific implementation, the peeling device can be a peeling machine used solely for peeling cylindrical workpieces, or it can be a processing system with a peeling process, and this application does not impose any restrictions on this.

[0079] Whether it is a peeling machine or a processing system, it should have a frame for supporting and installing the first mold 100 and the second mold 200, and a collecting trough for receiving the fallen waste 410 is provided under the frame, and at least one of the first mold 100 and the second mold 200 is also connected to a driving member for driving the first mold 100 and the second mold 200 to feed relative to each other.

[0080] In summary, the rotary cutting mold and rotary cutting device provided by the present application are provided with a waste cutting knife 300 on one of the first mold 100 and the second mold 200 of the rotary cutting mold, so that the first mold 100 and the second mold 200 can be relatively rotated and fed, and the circumference of the workpiece 400 to be processed is cut to separate the waste 410. The waste cutting knife 300 moves synchronously with the one mold in which it is located, so that the separated waste 410 can be cut off with the mold while the waste 410 is formed, so as to avoid the formation of a closed annular waste 410. After being cut off, the waste 410 will not be able to be tightly clamped on the first mold 100, and it is easy to fall by itself under the action of gravity, thereby eliminating the manual stripping operation, saving the corresponding operation time, and thereby speeding up the production rhythm of the workpiece 400 to be processed, and realizing the improvement of the processing efficiency of the rotary cutting device.

[0081] So far, the technical solution of the present application has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments, and the above embodiments are only used to illustrate the technical solution of the present application rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A rotary cutting die, characterized in that: The invention comprises a first die, a second die and a waste cutting knife, wherein the first die is used to support the inner surface of the workpiece to be processed, the second die is used to be sleeved on the outer surface of the workpiece to be processed, and the first die and the second die are relatively rotated and fed to cut along the circumference of the workpiece to be processed and separate the waste; The waste cutting knife is connected to one of the first die and the second die, and the waste cutting knife is configured to move synchronously with the one connected to itself to cut off the waste.

2. The rotary cutting die according to claim 1, characterized in that: At least two waste cutting knives are provided, and the waste cutting knives are distributed at intervals along the cutting track of the workpiece to be processed so as to cut the waste into at least two sections.

3. The rotary cutting die according to claim 2, characterized in that: The waste cutting knife comprises a cutter head and a cutter seat connected to each other, wherein the cutter seat is connected to a side of the second die facing the first die, and the cutter head has a blade extending out of the cutter seat for cutting off the waste.

4. The rotary cutting die according to claim 3, characterized in that: The cutter head is provided with at least two cutting edges, each of which is respectively arranged on at least two sides of the cutter head opposite to each other, and one of the cutting edges faces the outer side wall of the first mold.

5. The rotary cutting die according to claim 4, characterized in that: It also includes a fastener, and the second mold is provided with a mounting groove adapted to the knife seat, and the knife seat is detachably connected to the mounting groove through the fastener.

6. The rotary cutting die according to any one of claims 3 to 5, characterized in that: The cutter head is rotatably connected to the cutter seat.

7. The rotary cutting die according to any one of claims 3 to 5, characterized in that: One end of the blade abuts against the end surface of the second mold, and the blade is connected to the cutting track of the workpiece to be processed.

8. The rotary cutting die according to any one of claims 3 to 5, characterized in that: The side of the cutter head has two intersecting cutting surfaces, and the cutting surfaces are respectively arranged to be inclined relative to the cutting track of the workpiece to be processed, and the intersection line of the two cutting surfaces forms the cutting edge.

9. The rotary cutting die according to any one of claims 1 to 5, characterized in that: The second mold is provided with a groove matched with the outer side wall of the first mold, and at least one of the groove and the outer side wall is provided with a rotary cutter, and the rotary cutter is used to cut the workpiece to be processed along the circumference of the workpiece to be processed.

10. A rotary cutting device, characterized in that: It comprises a device body and the peeling die according to any one of claims 1 to 9, wherein the peeling die is connected to the device body.

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