Cutting devices and tube production equipment

Abstract

The present invention discloses a cutting device and a pipe production equipment. The cutting device includes a frame; a cutter assembly, the cutter assembly is arranged on the frame; a rotating drive member, the rotating drive member is arranged on the frame; and a fixing assembly, the fixing assembly is connected to the rotating drive member, the fixing assembly is used to clamp and fix the pipe, the fixing assembly is driven to rotate by the rotating drive member, so that the pipe fixed to the fixing assembly rotates relative to the cutter assembly and is cut by the cutter assembly. The technical solution of the present invention can improve the quality of the cut of the cut pipe and improve the quality of the pipe after cutting and forming.

Description

Technical Field

[0001] The invention relates to the technical field of pipe fitting processing equipment, and in particular to a cutting device and pipe fitting production equipment using the cutting device. Background Art

[0002] In the related art, the cutting device for cutting pipe fittings (for example, heat shrink tubing) usually adopts lifting circular knife rotary cutting and lifting shear cutting. However, in the process of cutting pipe fittings by lifting circular knife rotary cutting, the cutting knife needs to be lifted and lowered at the same time during the rotation process, which easily affects the stability of the cutting process and causes burrs on the cut of the pipe fitting. In the process of cutting pipe fittings by lifting shear cutting, since opposite shear forces need to be applied to the cut of the pipe fitting, the cut is easily squeezed and deformed, resulting in deformation of the pipe mouth and indentation after cutting. Therefore, the quality of the cut of the pipe fittings cut by this type of cutting device is poor, resulting in reduced quality of the pipe fittings after cutting and forming. Summary of the invention

[0003] The main purpose of the present invention is to provide a cutting device for cutting pipe fittings, aiming to improve the quality of the cut of the cut pipe fittings and improve the quality of the pipe fittings after cutting and forming.

[0004] To achieve the above object, the cutting device proposed by the present invention comprises:

[0005] frame;

[0006] A cutter assembly, wherein the cutter assembly is arranged on the frame;

[0007] a rotary drive member, the rotary drive member being disposed on the frame; and

[0008] A fixing assembly is connected to the rotating drive member, and is used to limit and fix the pipe. The fixing assembly is driven to rotate by the rotating drive member, so that the pipe fixed to the fixing assembly rotates relative to the cutter assembly and is cut by the cutter assembly.

[0009] In one embodiment of the present invention, the fixing assembly comprises:

[0010] a clamping body connected to the rotary drive member; and

[0011] At least two clamping claws are provided at intervals on the clamping body, and at least two clamping claws can be close to each other to clamp and fix the pipe.

[0012] In one embodiment of the present invention, the fixing assembly further comprises a push ring, which is movably sleeved on the outer sides of at least two of the clamping jaws. The push ring moves relative to the at least two clamping jaws to drive the at least two clamping jaws to deform and move closer to each other.

[0013] In one embodiment of the present invention, the push ring comprises:

[0014] an inner snap ring, the inner snap ring being movably sleeved on the outer sides of at least two of the clamping claws; and

[0015] An outer snap ring, which is sleeved on the outer side of the inner snap ring, and the inner snap ring can rotate relative to the outer snap ring;

[0016] The fixing assembly also includes a push ring driving member, which is arranged on the frame and is also connected to the outer retaining ring. The push ring driving member drives the outer retaining ring to move so that the inner retaining ring moves relative to at least two of the clamping claws.

[0017] In one embodiment of the present invention, the fixing assembly further comprises a mounting plate, and the mounting plate is arranged on the frame;

[0018] The clamping body is rotatably arranged on the mounting plate, and the push ring driving member is installed on the mounting plate.

[0019] In one embodiment of the present invention, the mounting plate is provided with one of the guide column and the guide sleeve, the outer retaining ring is provided with the other of the guide column and the guide sleeve, the guide column is extended along the moving direction of the outer retaining ring, and the guide sleeve is sleeved on the outer side of the guide column.

[0020] In one embodiment of the present invention, the cutting device further comprises a first transmission assembly, wherein the first transmission assembly is connected to the clamping body and the rotary drive member, and the rotary drive member drives the clamping body to rotate through the first transmission assembly.

[0021] In one embodiment of the present invention, the number of the fixing components is two, the two fixing components are arranged opposite to each other, and the two fixing components are used to limit and fix the two ends of the pipe fitting respectively;

[0022] The rotating driving member is connected to the two fixed components and drives the two fixed components to rotate;

[0023] The cutter assembly is located between the two fixing assemblies.

[0024] In one embodiment of the present invention, the cutter assembly comprises:

[0025] a cutter drive member, the cutter drive member being disposed on the frame; and

[0026] The cutter is connected to the cutter driving member and is driven by the cutter driving member to approach or move away from the fixing assembly.

[0027] The present invention also provides a pipe production device, comprising a pipe forming machine and a cutting device, wherein the pipe forming machine is used to form pipes; the cutting device is used to cut the pipes formed by the pipe forming machine, and the cutting device comprises:

[0028] frame;

[0029] A cutter assembly, wherein the cutter assembly is arranged on the frame;

[0030] a rotary drive member, the rotary drive member being disposed on the frame; and

[0031] A fixing assembly is connected to the rotating drive member, and is used to limit and fix the pipe fitting. The fixing assembly can also be driven to rotate by the rotating drive member, so that the pipe fitting limited and fixed to the fixing assembly rotates relative to the cutter assembly and is cut by the cutter assembly.

[0032] When cutting a pipe, the cutting device of the technical solution of the present invention clamps and fixes the pipe by a fixing assembly. Then, the fixing assembly is driven to rotate by a rotating driving member, so that the pipe fixed to the fixing assembly rotates relative to the cutter assembly and is cut by the cutter assembly, thereby completing the cutting process of the pipe.

[0033] Furthermore, since the cutting knife assembly of the cutting device in the present solution is fixed in position, the cutting knife assembly and the pipe fitting can be cut by rotating the fixed assembly. Therefore, the cutting knife assembly does not need to move during the cutting process, the cutting knife assembly is small in size, saves space, and the fixed assembly only needs to rotate to ensure a relatively stable movement process. Compared with the lifting circular knife rotary cutting of the cutting device in the prior art, in the process of cutting the pipe fitting, the cutting knife needs to be lifted and lowered at the same time during the rotation process, which easily affects the stability of the cutting process and causes burrs on the cut of the pipe fitting. The cutting knife assembly of the cutting device in the present solution can be relatively stable during the process of cutting the pipe fitting, which reduces the possibility of burrs on the cut of the pipe fitting. In addition, compared with the cutting device in the prior art that adopts lifting shearing and cutting, the cutting device in the present solution does not need to apply opposite shearing forces to the cut of the pipe fitting, so that the cut is prevented from being squeezed and deformed by the shear force, which causes the pipe mouth of the pipe fitting to be deformed and produce indentations after the cutting is completed. Therefore, the cutting device in this solution can improve the quality of the cut of the cut pipe, thereby improving the quality of the pipe after cutting and forming. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0035] Figure 1 It is a schematic diagram of the assembly structure of a cutting device according to an embodiment of the present invention;

[0036] Figure 2 for Figure 1 A schematic diagram of the structure of the clamping body and the clamping claws of the fixing assembly of the middle cutting device;

[0037] Figure 3 for Figure 2 A schematic cross-sectional view of the clamping body and the clamping claws;

[0038] Figure 4 for Figure 1 A schematic diagram of the structure of the push ring of the middle cutting device;

[0039] Figure 5 for Figure 4 A cross-sectional schematic diagram of the middle push ring;

[0040] Figure 6 for Figure 1 Schematic diagram of the structure of the rotating drive component of the cutting device.

[0041] Description of Figure Numbers:

[0042] Label name Label name 10 frame 45 Push ring drive 20 Cutter assembly 46 Mounting Plate 21 Cutter drive 461 Guide column 23 Cutter 47 Rotating sleeve 25 Knife holder 48 Second bearing 30 Rotating drive 50 Pipe fittings 31 Transmission roller 60 First transmission assembly 40 Fixed components 61 First driving wheel 41 Clamping body 63 First driven wheel 43 Clamping claw 65 First conveyor belt 44 Push ring 70 Second transmission assembly 441 Internal snap ring 71 Second driving wheel 443 External retaining ring 73 Second driven wheel 4431 Guide sleeve 75 Second conveyor belt 445 First bearing

[0043] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0046] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0048] Please refer to Figure 1 The present invention provides a cutting device for cutting a tube 50. In one embodiment, the tube 50 can be a heat shrinkable tube.

[0049] In one embodiment of the present invention, the cutting device includes a frame 10, a cutter assembly 20, a rotating drive member 30 and a fixing assembly 40; wherein the cutter assembly 20 is arranged on the frame 10; the rotating drive member 30 is arranged on the frame 10; the fixing assembly 40 is connected to the rotating drive member 30, and the fixing assembly 40 is used to limit and fix the pipe 50. The fixing assembly 40 can also be driven to rotate by the rotating drive member 30, so that the pipe 50 limited and fixed to the fixing assembly 40 rotates relative to the cutter assembly 20 and is cut by the cutter assembly 20.

[0050] In one embodiment of the present invention, the frame 10 can be mainly used to install and carry the cutter assembly 20, the rotary drive member 30 and other parts of the cutting device, so that the various parts of the cutting device can form a whole and are easy to carry and manage. Among them, the material of the frame 10 can be plastic material, such as: ABS (acrylonitrile-butadiene-styrene), POM (polyoxymethylene), PS (polystyrene), PMMA (polymethyl methacrylate), PC (polycarbonate), PET (polyethylene terephthalate), etc.; in this way, the weight of the frame 10 can be reduced and it is further convenient to carry. Of course, in order to increase the supporting strength of the frame 10, the frame 10 can also be made of metal, such as: aluminum material, aluminum alloy material, copper material, copper alloy material, iron material, stainless steel material, etc. The projection of the shape of the frame 10 on the horizontal plane can be roughly square, rectangular or circular, so that the shape of the frame 10 is relatively regular and easy to form and manufacture. Of course, the frame 10 can also be other shapes, which can realize the installation and bearing of the cutter assembly 20, the rotating drive member 30 and other parts of the cutting device. The cutter assembly 20 can be mainly used to cut the pipe 50 fixed to the fixed assembly 40, so as to cut the long strip of pipe 50 into short strips of preset length. The rotating drive member 30 can be mainly used to provide power to drive the fixed assembly 40 to rotate. Among them, the rotating drive member 30 can be a motor. The fixed assembly 40 can be mainly used to limit and fix the pipe 50, so that the pipe 50 fixed to the fixed assembly 40 can be rotated relative to the cutter assembly 20 through the rotation of the fixed assembly 40 to achieve cutting.

[0051] When the cutting device of the technical solution of the present invention cuts the pipe 50, the pipe 50 is fixed by the fixing assembly 40. Then, the fixing assembly 40 is driven to rotate by the rotating driving member 30, so that the pipe 50 fixed to the fixing assembly 40 rotates relative to the cutter assembly 20 and is cut by the cutter assembly 20, thereby completing the cutting process of the pipe 50.

[0052] Furthermore, since the cutter assembly 20 of the cutting device in this solution is fixed in position, the cutter assembly 20 and the pipe 50 can be cut by rotating the fixing assembly 40. Therefore, the cutter assembly 20 does not need to move during the cutting process, and the cutter assembly 20 is small in size and saves space, and the fixing assembly 40 only needs to rotate to ensure a relatively stable movement process. Compared with the lifting circular knife rotary cutting of the cutting device in the prior art, in the process of cutting the pipe 50, the cutter 23 needs to be lifted and lowered at the same time during the rotation process, which easily affects the stability of the cutting process and causes burrs on the cut of the pipe 50. The cutter assembly 20 of the cutting device in this solution can be relatively stable during the process of cutting the pipe 50, thereby reducing the possibility of burrs on the cut of the pipe 50. In addition, compared with the cutting device using lifting shearing and cutting in the prior art, the cutting device in this solution does not need to apply opposite shearing forces to the cut of the pipe 50, so that the cut can be prevented from being squeezed and deformed by the shearing force, resulting in deformation and indentation of the pipe mouth of the pipe 50 after cutting. Therefore, the cutting device in this solution can improve the quality of the cut of the pipe 50, thereby improving the quality of the pipe 50 after cutting and forming.

[0053] Please refer to Figure 1 , Figure 2 as well as Figure 3 In one embodiment of the present invention, the fixing assembly 40 includes a clamping body 41 and at least two clamping claws 43, the clamping body 41 is connected to the rotating driving member 30; at least two clamping claws 43 are spaced apart from the clamping body 41, and at least two clamping claws 43 can approach each other to clamp and fix the pipe 50.

[0054] It can be understood that the fixing assembly 40 can achieve the position fixing of the pipe 50 by at least two clamping claws 43 connected to the clamping body 41 approaching each other, and can achieve the unlocking of the pipe 50 by at least two clamping claws 43 moving away from each other after the cutting of the pipe 50 is completed. In this way, the pipe 50 can be quickly locked or unlocked by a relatively simple mechanical mechanism, thereby improving the convenience of disassembly and assembly of the pipe 50. Among them, the clamping body 41 can be in a ring shape, and at least two clamping claws 43 surround the outer side of the ring opening of the clamping body 41. At this time, the pipe 50 can be inserted between the at least two clamping claws 43 from the side of the clamping body 41 away from the clamping claws 43 through the ring opening of the clamping body 41, thereby further improving the convenience of placing the pipe 50. Of course, in other embodiments, the clamping body 41 may also be a plate-like structure without a ring opening, in which case the pipe 50 can be installed by inserting the end of at least two clamping claws 43 away from the clamping body 41 into the space between at least two clamping claws 43. The number of clamping claws 43 may be two, and the two clamping claws 43 are arranged opposite to each other; of course, the number of clamping claws 43 may be three or more, and the three or more clamping claws 43 are evenly spaced around the center of the clamping body 41 to increase the clamping area of ​​the outer peripheral surface of the pipe 50 and improve the stability of clamping and fixing the pipe 50. When the pipe 50 is cylindrical, at least the inner surface of the clamping claw 43 is an arc surface, so as to fit the outer wall surface of the pipe 50 and ensure the stability of clamping and fixing the pipe 50. Of course, when the pipe 50 is a square cylinder, at least the inner surface of the clamping claw 43 is a plane, so as to fit the outer wall surface of the pipe 50. The present application does not limit the specific shape and number of the clamping claws 43, as long as they can stably clamp and fix the pipe 50. In addition, it should be noted that the present application is not limited to this. In other embodiments, the fixing assembly 40 may also include an exhaust fan and a suction plate, wherein the suction plate has an air cavity connected to the exhaust fan, and the surface of the suction plate used to abut against the pipe 50 is also provided with a suction hole connected to the air cavity, so that when the suction plate abuts against the pipe 50, the exhaust fan is started to remove the air between the suction plate and the pipe 50 through the suction hole and form a negative pressure, thereby achieving vacuum adsorption and fixation of the pipe 50.

[0055] In one embodiment of the present invention, the fixing assembly 40 further includes a push ring 44, which is movably sleeved on the outer sides of at least two clamping claws 43. The push ring 44 moves relative to the at least two clamping claws 43 to drive the at least two clamping claws 43 to deform and move closer to each other.

[0056] It can be understood that the push ring 44 drives at least two clamping claws 43 to move closer to each other through deformation to achieve clamping and fixing of the pipe 50, so that the at least two clamping claws 43 can be distributed relatively close to each other on the connecting body, which is beneficial to reducing the space occupied by them and reducing the overall volume of the fixing assembly 40. At the same time, such a setting can also simplify the connection structure between the clamping claws 43 and the clamping body 41, that is, the clamping claws 43 can be fixed to the clamping body 41 without setting a relative sliding connection and other driving structures, which is beneficial to reducing the manufacturing cost of the fixing assembly 40. Among them, the push ring 44 drives the at least two clamping claws 43 to deform in the direction facing each other when moving relative to the at least two clamping claws 43, and the outer surfaces of the at least two clamping claws 43 can be formed with inclined surfaces, while the inner diameter of the push ring 44 remains unchanged. In this way, when the push ring 44 moves in a direction close to the inclined surface relative to the at least two clamping claws 43, the clamping claws 43 are deformed inward by cooperating with the inclined surface to clamp and fix the pipe 50; thereafter, when the push ring 44 moves in a direction away from the inclined surface relative to the at least two clamping claws 43, the clamping claws 43 and the inclined surface are separated so that the clamping claws 43 are reset outward to unlock the pipe 50. Of course, in other embodiments, the fixing assembly 40 may not be provided with a push ring 44, in which case the at least two clamping claws 43 may be arranged relatively close to each other, that is, the pipe 50 is clamped and fixed when it is elastically inserted into the at least two clamping claws 43, and is unlocked when it is elastically pulled out of the at least two clamping claws 43. Furthermore, in order to improve the stability of the connection between the at least two clamping claws 43 and the clamping body 41, the at least two clamping claws 43 and the clamping body 41 can be an integral structure to improve the connection strength between the two at the connection point; at the same time, the at least two clamping claws 43 and the clamping body 41 can be manufactured by integral molding, simplifying the processing technology of the two and improving production efficiency. Of course, in other embodiments, the at least two clamping claws 43 can also be detachably connected to the clamping body 41, specifically, they can be connected by screws or fixed by clamping.

[0057] Please refer to Figure 1 , Figure 4 as well as Figure 5 In one embodiment of the present invention, the push ring 44 includes an inner snap ring 441 and an outer snap ring 443. The inner snap ring 441 can be movably mounted on the outer side of at least two clamping claws 43; the outer snap ring 443 is mounted on the outer side of the inner snap ring 441, and the inner snap ring 441 can rotate relative to the outer snap ring 443; the fixing assembly 40 also includes a push ring driving member 45, the push ring driving member 45 is arranged on the frame 10, and the push ring driving member 45 is also connected to the outer snap ring 443. The push ring driving member 45 drives the outer snap ring 443 to move so that the inner snap ring 441 moves relative to the at least two clamping claws 43.

[0058] It can be understood that the inner snap ring 441 is movably sleeved on the clamping claw 43, including two movement modes of the inner snap ring 411, which can rotate relatively and translate relatively. At this time, the push ring 44 is composed of an inner snap ring 441 and an outer snap ring 443, so that the clamping claw 43 can be deformed by the movement of the inner snap ring 441 relative to the clamping claw 43 to achieve the clamping and fixing of the pipe 50, and the outer snap ring 443 can be connected to the push ring driver 45, and because the inner snap ring 441 and the outer snap ring 443 can rotate relatively, it is avoided that the inner snap ring 441 affects the outer snap ring 443 and the push ring driver 45 when rotating with the clamping claw 43. The push ring driver 45 drives the outer snap ring 443 to move, so that there is no need for manual operation by workers, and the automation of the cutting device is improved. Among them, the push ring driver 45 can be a cylinder or a linear motor, which can ensure that the outer snap ring 443 can be driven to do linear motion. The number of the push ring driving member 45 can be one, or two. Furthermore, in order to improve the smoothness of the inner snap ring 441 and the outer snap ring 443 during movement, a first bearing 445 can be sleeved between the inner snap ring 441 and the outer snap ring 443.

[0059] Please refer to Figure 1 and Figure 2 In one embodiment of the present invention, the fixing assembly 40 further includes a mounting plate 46 , which is disposed on the frame 10 ; the clamping body 41 is rotatably disposed on the mounting plate 46 , and the push ring driving member 45 is mounted on the mounting plate 46 .

[0060] It can be understood that the clamping body 41 is rotatably arranged on the mounting plate 46, and the mounting plate 46 has a good bearing effect on the clamping body 41, thereby improving the stability of the installation of the clamping body 41. The push ring driving member 45 is installed on the mounting plate 46, so that the installation between the push ring driving member 45 and the clamping body 41 can be more compact, thereby further reducing the overall volume of the cutting device to reduce the space occupied. Further, in order to reduce the resistance encountered by the clamping body 41 during the rotation process, the fixing assembly 40 can also include a rotating sleeve 47, which is sleeved on the outer side of the clamping body 41, and there is a gap between the inner side wall of the rotating sleeve 47 and the outer side wall of the clamping body 41, and the rotating sleeve 47 can also be rotatably connected to the mounting plate 46 and connected to the rotating driving member 30, and the end of the clamping body 41 away from the clamping claw 43 extends outward to form a flange to connect with the rotating sleeve 47. In order to improve the smoothness of rotation between the rotating sleeve 47 and the mounting plate 46 , a second bearing 48 may be sleeved between the rotating sleeve 47 and the mounting plate 46 .

[0061] Please refer to Figure 1 , Figure 2 as well as Figure 4In one embodiment of the present invention, the mounting plate 46 is provided with one of the guide column 461 and the guide sleeve 4431, and the outer retaining ring 443 is provided with the other of the guide column 461 and the guide sleeve 4431. The guide column 461 is extended along the moving direction of the outer retaining ring 443, and the guide sleeve 4431 is sleeved on the outer side of the guide column 461.

[0062] It can be understood that the cooperation between the guide column 461 and the guide sleeve 4431 can guide the movement stroke of the outer retaining ring 443, so that the outer retaining ring 443 can only move along the extension direction of the guide column 461 when being driven by the push ring driving member 45, thereby ensuring the stability of the outer retaining ring 443 during the movement, so that the inner retaining ring 441 can accurately drive the clamping claw 43 to deform and stably clamp and fix the pipe 50. Among them, the mounting plate 46 can be provided with a guide column 461, and the outer retaining ring 443 is provided with a guide sleeve 4431; of course, the mounting plate 46 can also be provided with a guide sleeve 4431, and the outer retaining ring 443 is provided with a guide column 461. In addition, both the guide column 461 and the guide sleeve 4431 can be detachably fixed by screws or buckles, so that they can be removed for repair and replacement when they are damaged. The guide sleeve 4431 can be a linear bearing or a common guide sleeve, which is not limited in this application, and can achieve the guidance of the movement process of the outer retaining ring 443.

[0063] Please refer to Figure 1 In one embodiment of the present invention, the cutting device further comprises a first transmission assembly 60 , the first transmission assembly 60 is connected to the clamping body 41 and the rotating driving member 30 , and the rotating driving member 30 drives the clamping body 41 to rotate through the first transmission assembly 60 .

[0064] It can be understood that the rotating drive member 30 indirectly drives the clamping body 41 to rotate through the first transmission assembly 60, so that the rotating drive member 30 can be installed at any position of the frame 10, reducing the requirements for the installation position of the rotating drive member 30, thereby improving the convenience of installing the rotating drive member 30. Moreover, the rotation speed of the clamping body 41 can also be adjusted through the first transmission assembly 60, so that it has a more appropriate rotation speed and further improves the cutting quality of the pipe 50. At the same time, such an arrangement also allows the rotating drive member 30 and the clamping body 41 to be staggered, so that the pipe 50 can be inserted between the clamping claws 43 from one end of the clamping body 41. The first transmission assembly 60 may include a first driving wheel 61, a first driven wheel 63 and a first conveyor belt 65; the first driving wheel 61 may be sleeved on the outside of the rotating driving member 30; the first driven wheel 63 may be sleeved on the outside of the end of the clamping body 41 away from the clamping claw 43; of course, when the fixed assembly 40 includes a rotating sleeve 47, the first driven wheel 63 may be sleeved on the outside of the rotating sleeve 47; the first conveyor belt 65 is sleeved on the outside of the first driving wheel 61 and the first driven wheel 63. In addition, it should be noted that the present application is not limited to this. In other embodiments, the first transmission assembly 60 may also include a first driving sprocket, a first driven sprocket and a first chain. In this case, the first driving sprocket is sleeved on the outside of the rotating driving member 30, the first driven sprocket is sleeved on the outside of the rotating sleeve 47 of the fixed assembly 40, and the first chain is sleeved on the outside of the first driving sprocket and the first driven sprocket.

[0065] In one embodiment of the present invention, there are two fixing assemblies 40, which are arranged opposite to each other and are used to limit and fix the two ends of the pipe 50 respectively; the rotating driving member 30 is connected to the two fixing assemblies 40 and drives the two fixing assemblies 40 to rotate; the cutter assembly 20 is located between the two fixing assemblies 40.

[0066] It can be understood that the number of the fixing components 40 is two and they are arranged oppositely, so that the two fixing components 40 can clamp the two ends of the fixed pipe 50, thereby further improving the stability of the pipe 50 limit fixation, so as to further ensure that the clamped pipe 50 rotates stably relative to the cutter component 20 and further improve the quality of the cut of the cut pipe 50. The two fixing components 40 are driven to rotate by the rotating drive member 30, so as to facilitate the guarantee that the rotation speed of the two relative fixing components 40 is the same, so that the pipe 50 fixed to the two fixing components 40 can have a stable rotation speed and ensure normal cutting. At the same time, the setting of one rotating drive member 30 can also reduce the number of driving members used, thereby further reducing the manufacturing cost of the cutting device. Of course, in other embodiments, the rotating drive member 30 can also be provided with two, so that one fixed component 40 can be driven to rotate by one rotating drive member 30, and when one of the two rotating drive members 30 is damaged, the other one can still work. The present application does not impose any specific limitation on the number of rotating drive members 30, and it is sufficient to ensure that the rotation speeds of the two fixed components 40 remain synchronized. In addition, the rotating drive member 30 may be connected to a transmission roller 31, and the transmission roller 31 may be rotatably connected to the frame 10. The first transmission component 60 may be set to two corresponding to the number of fixed components 40, and the first driving wheels 61 in the two first transmission components 60 are both sleeved on the outside of the transmission roller 31, the first driven wheel 63 in a first transmission component 60 is sleeved on the outside of a rotating shaft sleeve 47 of a fixed component 40, and the first conveyor belt 65 in a first transmission component 60 is sleeved on the outside of a first driving wheel 61 and a first driven wheel 63. Of course, please refer to Figure 1 and Figure 6 The cutting device may further include a second transmission assembly 70, which is connected to the rotary drive member 30 and the transmission roller 31, so that the rotary drive member 30 drives the transmission roller 31 to rotate through the second transmission assembly 70, and further drives the first driving wheel 61 in the two first transmission assemblies 60 to rotate; at this time, the rotary drive member 30 can also be installed on the inner side of the frame 10 so that it is more compactly distributed on the frame 10. The second transmission assembly 70 may include a second driving wheel 71, a second driven wheel 73 and a second conveyor belt 75; the second driving wheel 71 is sleeved on the outer side of the rotary drive member 30, the second driven wheel 73 is sleeved on the outer side of the transmission roller 31, and the second conveyor belt 75 is sleeved on the outer side of the second driving wheel 71 and the second driven wheel 73. Of course, in other embodiments, the second transmission assembly 70 may also include a second driving sprocket, a second driven sprocket and a second chain, wherein the second driving sprocket is sleeved on the outside of the rotating drive member 30, the second driven sprocket is sleeved on the outside of the transmission roller 31, and the second chain is sleeved on the outside of the second driving sprocket and the second driven sprocket.

[0067] Please refer to Figure 1 In one embodiment of the present invention, the cutter assembly 20 includes a cutter driving member 21 and a cutter 23. The cutter driving member 21 is disposed on the frame 10; the cutter 23 is connected to the cutter driving member 21 and is driven by the cutter driving member 21 to approach or move away from the fixed assembly 40.

[0068] It can be understood that the cutter assembly 20 includes a cutter drive 21 and a cutter 23, so that when the pipe 50 is installed and fixed to the fixing assembly 40, the cutter drive 21 can drive the cutter 23 away from the fixing assembly 40, so as to reduce the interference of the cutter 23 on the installation of the pipe 50. Afterwards, when the pipe 50 is installed and fixed for cutting, the cutter drive 21 drives the cutter 23 to approach the pipe 50 and penetrate into the pipe 50. Among them, the cutter drive 21 can be a cylinder or a linear motor. Further, in order to facilitate the connection between the cutter drive 21 and the cutter 23, the cutter assembly 20 can also include a knife seat 25, which is connected to the cutter drive 21, and the cutter 23 is installed on the knife seat 25. At this time, due to the relatively large volume of the knife seat 25, a larger installation position is provided, so that it can be conveniently connected to the cutter drive 21. Wherein, the cutter holder 25 and the cutter drive member 21 can be fixed by clamping or screw connection, so that both can be removed when damaged and are convenient for maintenance. Similarly, the cutter 23 and the cutter holder 25 can also be fixed by clamping or screw connection.

[0069] The present invention also proposes a pipe fitting production equipment, which includes a pipe fitting forming machine and a cutting device. The specific structure of the cutting device refers to the above embodiment. Since the pipe fitting production equipment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0070] The pipe forming machine is used to form the pipe 50. In one embodiment, the pipe forming machine can be used to manufacture heat shrink tubing; the cutting device is used to cut the pipe 50 formed by the pipe forming machine.

[0071] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A cutting device for cutting a pipe, characterized in that: The cutting device comprises: frame; A cutter assembly, wherein the cutter assembly is arranged on the frame; a rotary drive member, the rotary drive member being disposed on the frame; and A fixing assembly, the fixing assembly is connected to the rotary drive member, the fixing assembly is used to limit and fix the pipe, the fixing assembly is driven to rotate by the rotary drive member, so that the pipe fixed to the fixing assembly is rotated relative to the cutter assembly and cut by the cutter assembly; The fixing assembly comprises at least two clamping claws, and the at least two clamping claws can be close to each other to clamp and fix the pipe; The fixing assembly further comprises a push ring, which is movably sleeved on the outer sides of at least two of the clamping claws, and the push ring moves relative to the at least two clamping claws to drive the at least two clamping claws to deform and approach each other; The push ring comprises: an inner snap ring, the inner snap ring being movably sleeved on the outer sides of at least two of the clamping claws; and An outer snap ring, which is sleeved on the outer side of the inner snap ring, and the inner snap ring can rotate relative to the outer snap ring; The fixing assembly further comprises a push ring driving member, the push ring driving member is arranged on the frame, the push ring driving member is also connected to the outer clamping ring, and the push ring driving member drives the outer clamping ring to move so that the inner clamping ring moves relative to at least two of the clamping claws; A first bearing is sleeved between the inner snap ring and the outer snap ring.

2. The cutting device according to claim 1, characterized in that: The fixing assembly further comprises a clamping body, the clamping body is connected to the rotary driving member, and at least two clamping claws are spaced apart from each other on the clamping body.

3. The cutting device according to claim 2, characterized in that: The fixing assembly further comprises a mounting plate, and the mounting plate is arranged on the frame; The clamping body is rotatably arranged on the mounting plate, and the push ring driving member is installed on the mounting plate.

4. The cutting device according to claim 3, characterized in that: The mounting plate is provided with one of the guide column and the guide sleeve, the outer retaining ring is provided with the other of the guide column and the guide sleeve, the guide column is extended along the moving direction of the outer retaining ring, and the guide sleeve is sleeved on the outer side of the guide column.

5. The cutting device according to claim 3, characterized in that: The cutting device further comprises a first transmission assembly, wherein the first transmission assembly is connected to the clamping body and the rotating driving member, and the rotating driving member drives the clamping body to rotate through the first transmission assembly.

6. The cutting device according to any one of claims 1 to 5, characterized in that: There are two fixing components, which are arranged opposite to each other and are used to limit and fix the two ends of the pipe fitting respectively; The rotating driving member is connected to the two fixed components and drives the two fixed components to rotate; The cutter assembly is located between the two fixing assemblies.

7. The cutting device according to any one of claims 1 to 5, characterized in that: The cutter assembly comprises: a cutter drive member, the cutter drive member being disposed on the frame; and The cutter is connected to the cutter driving member and is driven by the cutter driving member to approach or move away from the fixing assembly.

8. A pipe fitting production equipment, characterized in that: include: A pipe forming machine, the pipe forming machine is used to form pipes; and A cutting device, wherein the cutting device is used to cut the pipes formed by the pipe forming machine, and the cutting device is the cutting device as described in any one of claims 1 to 7.

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