Cutting machine

Abstract

The embodiment of the utility model provides a guillotine shear, and belongs to the technical field of linear cutting. The guillotine shear comprises a rack, a driving wheel assembly, a first driven wheel assembly and a tension wheel assembly, the driving wheel assembly comprises a driving wheel, and the driving wheel is rotatably installed on the rack; the first driven wheel assembly comprises a first driven wheel, and the first driven wheel is rotatably mounted on the rack; the tension wheel assembly comprises a tension wheel, and the tension wheel is rotatably installed on the machine frame through a tensioning driving assembly. The guillotine shear further comprises a tension stretching assembly, the tension stretching assembly is detachably connected with the first driven wheel and the tension wheel, and the tension stretching assembly is used for adjusting the distance between the tension wheel and the first driven wheel. The cut-off machine can facilitate winding of the cutting line, and the line hanging difficulty of the cutting line is reduced.

Description

Technical Field

[0001] This application relates to the technical field of wire cutting, and more specifically, to a cutting machine. Background Art

[0002] A cutting machine uses a cutting wire to cut a long silicon rod into short silicon rods as required. Currently, the cutting machine includes a machine head frame, a driving wheel assembly, a first driven wheel assembly, and a tension wheel assembly. The cutting wire is wound around the driving wheel assembly, the first driven wheel assembly, and the tension wheel assembly, and rotates at a high speed under the drive of the driving wheel assembly to achieve the cutting function.

[0003] Before the cutting starts, it is necessary to wind the cutting wire on the cutting machine. When winding the cutting wire, it is necessary to overcome the counterweight of the tension wheel assembly and move the tension wheel towards the first driven wheel to make the perimeter between multiple cutting wheel groups of the cutting machine smaller than the perimeter of the annular cutting wire, so as to sleeved the cutting wire in the wire grooves of multiple cutting wheel groups. In the prior art, generally, manual force is applied to the tension wheel to move the tension wheel towards the first driven wheel after overcoming the counterweight of the tension wheel assembly. Since the weight of the counterweight is relatively heavy, it is laborious for the operator and increases the labor intensity. Summary of the Utility Model

[0004] An embodiment of this application provides a cutting machine, which can facilitate the winding of the cutting wire and reduce the difficulty of hanging the cutting wire.

[0005] An embodiment of this application provides a cutting machine, which includes a frame, a driving wheel assembly, a first driven wheel assembly, and a tension wheel assembly. The driving wheel assembly includes a driving wheel rotatably installed on the frame; the first driven wheel assembly includes a first driven wheel rotatably installed on the frame; the tension wheel assembly includes a tension wheel rotatably installed on the frame through a tension driving assembly; wherein, the cutting machine further includes a tension stretching assembly detachably connected between the first driven wheel and the tension wheel, and the tension stretching assembly is used to adjust the distance between the tension wheel and the first driven wheel.

[0006] In this solution, an active wheel assembly, a first driven wheel assembly, and a tension wheel assembly are provided on the frame. The cutting wire is threaded through the active wheel of the active wheel assembly, the tension wheel of the tension wheel assembly, and the first driven wheel of the first driven wheel assembly to form a closed loop. Driven by the active wheel in the active wheel assembly, the cutting wire is driven to rotate at high speed, and the cutting wire contacts the workpiece to be cut to achieve wire cutting of the workpiece to be cut. Before cutting starts, an annular cutting wire needs to be wound around the active wheel, the first driven wheel, and the tension wheel of the cutting machine, that is, the wire is hung. When hanging the cutting wire, it is necessary to overcome the counterweight of the tension driving assembly in the tension wheel assembly and move the tension wheel towards the first driven wheel so that the perimeter enclosed by the active wheel, the tension wheel, and the first driven wheel is smaller than the perimeter of the cutting wire, so as to wind the cutting wire in the wire grooves of the active wheel, the tension wheel, and the first driven wheel. Through the setting of the tension stretching assembly, the tension stretching assembly can adjust the distance between the tension wheel and the first driven wheel, enabling the tension wheel to approach the first driven wheel, thereby reducing the perimeter enclosed by the active wheel, the tension wheel, and the first driven wheel, facilitating the winding of the cutting wire around the active wheel, the tension wheel, and the first driven wheel. After the cutting wire is hung, act on the tension stretching assembly to gradually move the tension wheel away from the first driven wheel until the tension of the cutting wire reaches the preset tension range, then separate the tension stretching assembly from the tension wheel and the first driven wheel, and remove the tension stretching assembly to start the cutting work. Through the setting of the tension stretching assembly, compared with the conventional operation of manually overcoming the counterweight of the tension wheel by the operator, the operator does not need to manually act on the tension wheel and overcome the counterweight of the tension wheel. Only by acting on the tension stretching assembly can the tension wheel be made to approach the first driven wheel, reducing the difficulty of wire hanging for the operator.

[0007] In some embodiments, the tension stretching assembly includes a driving member, a first connecting member, and a second connecting member. The driving member is a telescopic device. The first connecting member is used to connect to the first driven wheel, and the second connecting member is used to connect to the tension wheel. The driving member is disposed between the first connecting member and the second connecting member and is used to drive the first connecting member and the second connecting member to approach or separate from each other.

[0008] In the above technical solution, by using a telescopic device as the driving member, the telescopic device is respectively connected to the first connecting member and the second connecting member. Under the telescopic action of the telescopic device, the first connecting member and the second connecting member can be driven to approach or separate from each other to achieve the adjustment of the distance between the tension wheel and the first driven wheel.

[0009] In some embodiments, the driving member includes an adjusting cylinder and two lead screws. The two lead screws are respectively disposed at the axial two ends of the adjusting cylinder. The thread directions of the two lead screws are opposite and are in threaded cooperation with the adjusting cylinder. The opposite ends of the two lead screws are respectively used to connect to the first connecting member and the second connecting member. The adjusting cylinder is used to drive the tension wheel to approach or move away from the first driven wheel when rotating along its own axis.

[0010] In the above technical solution, by using the adjusting cylinder and two lead screws as the driving members, since the thread directions of the two lead screws are opposite, the opposite ends of the two lead screws are respectively in threaded cooperation with the adjusting cylinder, and the opposite ends of the two lead screws are respectively connected to the first driven wheel and the tension wheel through the first connecting member and the second connecting member. In this way, the operator only needs to rotate the adjusting cylinder forward, so that the overall length of the tension stretching assembly gradually decreases. Since the position of the first driven wheel is fixed, the tension wheel can be made to approach the first driven wheel. When the perimeter enclosed by the driving wheel, the first driven wheel and the tension wheel is equal to or less than the perimeter of the cutting wire, the operator can more easily wind the cutting wire around the driving wheel, the first driven wheel and the tension wheel, making the winding more labor-saving and the operation more convenient and fast.

[0011] After the cutting wire is wound, the operator only needs to rotate the adjusting cylinder in the reverse direction, so that the overall length of the tension stretching assembly gradually increases, and the tension wheel gradually moves away from the first driven wheel until the cutting wire does not fall off the first driven wheel, the driving wheel or the tension wheel, or the tension of the cutting wire reaches the preset tension range. During this process, since the adjusting cylinder rotates, the tension wheel gradually moves away from the first driven wheel linearly. Compared with the prior art where the operator manually hangs the wire and then directly releases the tension wheel, which may cause an impact on the cutting wire, the impact loss of the cutting wire is reduced, and the cutting wire is protected. Finally, the tension stretching assembly can be removed.

[0012] In some embodiments, the adjusting cylinder is axially penetrated with an internal thread, and the outer wall of the lead screw has an external thread that is threadedly connected to the internal thread.

[0013] In the above technical solution, since the adjusting cylinder is axially penetrated with an internal thread and the lead screw has an external thread, and since the operator will hold the outer wall of the adjusting cylinder during the adjustment process, compared with the case where the adjusting cylinder has an external thread and the lead screw has an internal thread, the entire axial length of the internal thread inside the adjusting cylinder can be fully utilized, and there will be no interference between the operator rotating the adjusting cylinder and the lead screw.

[0014] In some embodiments, the outer peripheral surface of the adjusting cylinder is provided with an anti-slip portion.

[0015] In the above technical solution, by providing an anti-slip portion on the outer peripheral surface of the adjusting cylinder, the anti-slip portion can perform an anti-slip function, so that when the operator rotates the adjusting cylinder, it is not easy to slip.

[0016] In some embodiments, the first connecting member includes a first connecting cylinder, and a first protrusion is formed at the axial end of the first driven wheel and is received in the first connecting cylinder; the second connecting member includes a second connecting cylinder, and a second protrusion is formed at the axial end of the tension wheel and is received in the second connecting cylinder.

[0017] In the above technical solution, the axial end portions of the first driven wheel and the tension wheel respectively protrude to form a first protrusion and a second protrusion. By adopting the first connecting member and the second connecting member in the form of connecting cylinders, the first connecting cylinder can be inserted and matched with the first protrusion of the first driven wheel, and the second connecting cylinder can be inserted and matched with the second protrusion of the tension wheel, so that the connection between the first connecting member and the first driven wheel, and the connection between the second connecting member and the tension wheel can be quickly realized, which is convenient for the quick installation and disassembly of the tension stretching assembly and the first driven wheel or the tension wheel, and the installation efficiency is high.

[0018] In some embodiments, the cutting machine further includes a second driven wheel assembly, and the second driven wheel assembly includes a second driven wheel, which is rotatably installed on the frame; along the direction of gravity, the second driven wheel assembly is located on the upper side of the driving wheel assembly, and the first driven wheel assembly is located on the lower side of the tension wheel assembly.

[0019] In the above technical solution, through the arrangement of the second driven wheel assembly, the cutting wire is wound around the driving wheel, the second driven wheel, the tension wheel and the first driven wheel to form a closed loop. Compared with relying only on the first driven wheel assembly, the second driven wheel assembly and the first driven wheel assembly cooperate, and there are more supporting points for the cutting wire, reducing the probability of the cutting wire breaking.

[0020] In some embodiments, the frame has a front side and a back side that are relatively distributed, and the driving wheel, the first driven wheel and the tension wheel are all installed on the front side of the frame; the tensioning drive assembly includes a rotating shaft, a swing arm and a connecting rod. The rotating shaft is rotatably installed on the frame, and the rotating shaft penetrates through the front side and the back side of the frame; the swing arm is arranged on the front side of the frame, one end of the swing arm is connected to the tension wheel, and the other end is connected to the rotating shaft; the connecting rod is arranged on the back side of the frame, one end of the connecting rod is connected to the rotating shaft, and the other end is connected to the counterweight part.

[0021] In the above technical solution, by connecting the two ends of the rotating shaft to one ends of the swing arm and the connecting rod respectively, the other end of the swing arm is connected to the tension wheel, and the other end of the connecting rod is connected to the counterweight part. Since the first driven wheel of the first driven wheel assembly is located on the lower side of the tension wheel, under the action of the gravity of the counterweight part, the tension wheel can have a tendency to displace away from the first driven wheel assembly, thereby giving an initial torque to the tension wheel to balance with the preset tension of the cutting wire.

[0022] In some embodiments, the driving wheel assembly includes a driving wheel and a driving motor, and the driving motor is installed on the back side of the frame, and the driving motor is used to drive the driving wheel to rotate.

[0023] In the above technical solution, by installing the driving motor on the back side of the frame, the driving motor can drive the driving wheel to rotate, so that the cutting wire wound around the driving wheel, the first driven wheel and the tension wheel rotates at a high speed, realizing the cutting operation on the workpiece to be cut.

[0024] In some embodiments, a notch is provided on the frame for accommodating the workpiece to be cut, and the opening of the notch faces downward along the direction of gravity.

[0025] In the above technical solution, by opening a notch on the frame, the notch can give way to the workpiece to be cut, so that the workpiece to be cut is placed at the notch, and the cutting line is used to perform the cutting operation on the workpiece to be cut.

[0026] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 A schematic diagram of the structure of a cutting machine provided in some embodiments of the present application;

[0029] Figure 2 for Figure 1 Schematic diagram of the structure of the middle cutter after the cutting wire is wound around it;

[0030] Figure 3 A schematic diagram of the structure of a tension stretching assembly provided in some embodiments of the present application;

[0031] Figure 4 for Figure 3 Sectional view of AA in the middle;

[0032] Figure 5 A side view of a cutting machine provided for some embodiments of the present application;

[0033] Figure 6 A rear view of a cutting machine provided for some embodiments of the present application.

[0034] Icon: 10 - Frame; 11 - Front; 12 - Rear; 13 - Notch; 20 - Driving wheel assembly; 21 - Driving wheel; 22 - Driving motor; 30 - First driven wheel assembly; 31 - Second driven wheel assembly; 311 - Second driven wheel; 33 - First driven wheel; 40 - Tension wheel assembly; 41 - Tension wheel; 42 - Tension driving assembly; 421 - Rotating shaft; 422 - Swing arm; 423 - Connecting rod; 424 - Counterweight part; 50 - Cutting line; 60 - Tension stretching assembly; 61 - Adjusting cylinder; 62 - Lead screw; 621 - First lead screw; 622 - Second lead screw; 63 - First connecting piece; 631 - First connecting cylinder; 64 - Second connecting piece; 641 - Second connecting cylinder; 100 - Cutting machine. Detailed implementation mode

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. Usually, the components of the embodiments of this application described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application that is required to be protected, but merely represents the selected embodiments of this application. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of this application.

[0037] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0038] In the description of the embodiments of this application, it should be noted that the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of this application. In addition, the terms "first", "second", "third", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0039] In the description of the present application, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged" and "connected" should be understood in a broad sense. For example, they can be fixedly connected, detachably connected, or integrally connected; they can be directly connected or indirectly connected through an intermediate medium, and can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0040] An embodiment of the present application provides a cutting machine. Please refer to Figure 1 , Figure 2 and Figure 3 . The cutting machine 100 includes a frame 10, a driving wheel assembly 20, a first driven wheel assembly 30, and a tension wheel assembly 40. The driving wheel assembly 20 includes a driving wheel 21, and the driving wheel 21 is rotatably mounted on the frame 10; the first driven wheel assembly 30 includes a first driven wheel 33, and the first driven wheel 33 is rotatably mounted on the frame 10; the tension wheel assembly 40 includes a tension wheel 41, and the tension wheel 41 is rotatably mounted on the frame 10 through a tension driving assembly 42; wherein, the cutting machine 100 further includes a tension stretching assembly 60, and the tension stretching assembly 60 is detachably connected between the first driven wheel 33 and the tension wheel 41, and the tension stretching assembly 60 is used to adjust the distance between the tension wheel 41 and the first driven wheel 33.

[0041] In this solution, an active wheel assembly 20, a first driven wheel assembly 30, and a tension wheel assembly 40 are provided on the frame 10. The cutting wire 50 is threaded through the active wheel 21 of the active wheel assembly 20, the tension wheel 41 of the tension wheel assembly 40, and the first driven wheel 33 of the first driven wheel assembly 30 to form a closed loop. Driven by the active wheel 21 in the active wheel assembly 20, the cutting wire 50 is driven to rotate at a high speed. The cutting wire 50 contacts the workpiece to be cut to achieve wire cutting of the workpiece to be cut. Before cutting starts, an annular cutting wire 50 needs to be wound around the active wheel 21, the first driven wheel 33, and the tension wheel 41 of the cutting machine 100, that is, hanging the wire. When hanging the cutting wire 50, it is necessary to overcome the counterweight of the tension driving assembly 42 in the tension wheel assembly 40, move the tension wheel 41 towards the first driven wheel 33, so that the perimeter enclosed by the active wheel 21, the tension wheel 41, and the first driven wheel 33 is smaller than the perimeter of the cutting wire 50, so as to wind the cutting wire 50 in the wire grooves of the active wheel 21, the tension wheel 41, and the first driven wheel 33. Through the setting of the tension stretching assembly 60, the tension stretching assembly 60 can adjust the distance between the tension wheel 41 and the first driven wheel 33, so that the tension wheel 41 can approach the first driven wheel 33, thereby reducing the perimeter enclosed by the active wheel 21, the tension wheel 41, and the first driven wheel 33, facilitating the winding of the cutting wire 50 around the active wheel 21, the tension wheel 41, and the first driven wheel 33. After hanging the cutting wire 50, act on the tension stretching assembly 60 to make the tension wheel 41 gradually move away from the first driven wheel 33. Until the tension of the cutting wire 50 reaches the preset tension range, separate the tension stretching assembly 60 from the tension wheel 41 and the first driven wheel 33, and remove the tension stretching assembly 60, then the cutting work can be carried out. Through the setting of the tension stretching assembly 60, compared with the conventional operator manually overcoming the counterweight of the tension wheel 41, the operator does not need to manually act on the tension wheel 41 and overcome the counterweight of the tension wheel 41. Only by acting on the tension stretching assembly 60 can the tension wheel 41 approach the first driven wheel 33, reducing the difficulty of wire hanging for the operator.

[0042] Among them, the cutting wire 50 can be a diamond wire.

[0043] It should be noted that the function of the tension wheel assembly 40 is to adjust the tension of the cutting wire 50 during the cutting process. Specifically, the tension driving assembly 42 of the tension wheel 41 has a counterweight, which is equivalent to giving an initial torque to the tension wheel 41 and balancing it with the preset tension of the cutting wire 50. During the cutting process of the cutting wire 50 on the workpiece to be cut, when the tension of the cutting wire 50 is greater than or less than the preset tension, the tension wheel 41 will move towards or away from the first driven wheel 33 under the action of the cutting wire 50 or the counterweight, so as to adjust or maintain the tension of the cutting wire 50 within the preset tension range.

[0044] In some embodiments, the tension stretching assembly 60 includes a driving member, a first connecting member 63 and a second connecting member 64. The driving member is a telescopic device. The first connecting member 63 is used to connect with the first driven wheel 33, and the second connecting member 64 is used to connect with the tension wheel 41. The driving member is arranged between the first connecting member 63 and the second connecting member 64 and is used to drive the first connecting member 63 and the second connecting member 64 to approach or move away from each other. By adopting a telescopic device as the driving member and connecting the telescopic device with the first connecting member 63 and the second connecting member 64 respectively, under the telescopic action of the telescopic device, the first connecting member 63 and the second connecting member 64 can be driven to approach or move away from each other, so as to realize the position adjustment between the tension wheel 41 and the first driven wheel 33.

[0045] Among them, the driving member can be a variety of telescopic components. For example, the driving member can be a cylinder, a hydraulic cylinder or an electric push rod. The cylinder, the hydraulic cylinder or the electric push rod is detachably mounted on the first driven wheel 33 through a connecting member, and the other end of the cylinder, the hydraulic cylinder or the electric push rod is connected with the tension wheel 41 through a connecting member. Under the telescopic action of the cylinder, the hydraulic cylinder or the electric push rod, the tension wheel 41 is made to approach the first driven wheel 33.

[0046] Of course, the driving member can also be other telescopic structures. For example, the driving member can be a lead screw-nut adjustment structure. The driving member includes an adjustment cylinder and lead screws that are threadedly engaged with both ends of the adjustment cylinder. The lead screws have opposite helix directions. The two lead screws are respectively connected with the first driven wheel 33 and the tension wheel 41 through the first connecting member 63 and the second connecting member 64. By rotating the adjustment cylinder, the tension wheel 41 can be made to approach or move away from the first driven wheel 33.

[0047] In some embodiments, please refer to Figure 3 and Figure 4, the driving member includes an adjusting cylinder 61 and two lead screws 62. The two lead screws 62 are respectively arranged at the axial two ends of the adjusting cylinder 61. The thread directions of the two lead screws 62 are opposite and are in threaded cooperation with the adjusting cylinder 61. The opposite ends of the two lead screws 62 are respectively used to connect with the first connecting member 63 and the second connecting member 64. The adjusting cylinder 61 is used to drive the tension wheel 41 to approach or move away from the first driven wheel 33 when rotating along its own axis. By adopting the adjusting cylinder 61 and the two lead screws 62 as the driving member, since the thread directions of the two lead screws 62 are opposite, the opposite ends of the two lead screws 62 are in threaded cooperation with the adjusting cylinder 61 respectively, and the opposite ends of the two lead screws 62 are respectively connected with the first driven wheel 33 and the tension wheel 41 through the first connecting member 63 and the second connecting member 64. In this way, the operator only needs to manually rotate the adjusting cylinder 61 forward, making the overall length of the tension stretching assembly gradually decrease. Since the position of the first driven wheel 33 is fixed, the tension wheel 41 can be made to approach the first driven wheel 33. When the perimeter enclosed by the driving wheel 21, the first driven wheel 33 and the tension wheel 41 is equal to or less than the perimeter of the cutting wire 50, the operator can more easily wind the cutting wire 50 around the driving wheel 21, the first driven wheel 33 and the tension wheel 41. The winding is more labor-saving and the operation is more convenient and fast.

[0048] After the cutting wire 50 is wound, the operator only needs to rotate the adjusting cylinder 61 in the reverse direction, making the overall length of the tension stretching assembly gradually increase, and making the tension wheel 41 gradually move away from the first driven wheel 33 until the cutting wire 50 will not fall off from the first driven wheel 33, the driving wheel 21 or the tension wheel 41, or after the tension of the cutting wire 50 reaches the preset tension range. During this process, since the adjusting cylinder 61 rotates, the tension wheel 41 gradually moves away from the first driven wheel 33 linearly. Compared with the prior art, after the operator manually hangs the wire, there will be no phenomenon that the cutting wire 50 is impacted due to the operator directly releasing the tension wheel 41, reducing the impact loss of the cutting wire 50 and playing a role in protecting the cutting wire 50. Finally, the tension stretching assembly 60 can be removed.

[0049] Among them, the two lead screws 62 are respectively a first lead screw 621 and a second lead screw 622, and the thread directions of the first lead screw 621 and the second lead screw 622 are opposite.

[0050] In some embodiments, please refer to Figure 3 and Figure 4, the adjusting cylinder 61 is axially penetrated with an internal thread, and the outer wall of the lead screw 62 has an external thread threadedly connected to the internal thread. By axially penetrating the adjusting cylinder 61 with an internal thread and the lead screw 62 having an external thread, since the operator will hold the outer wall of the adjusting cylinder 61 during the adjustment process, compared with the adjusting cylinder 61 having an external thread and the lead screw 62 having an internal thread, the axial length of the internal thread inside the adjusting cylinder 61 can be fully utilized, and there will be no interference phenomenon between the operator rotating the adjusting cylinder 61 and the lead screw 62.

[0051] In some embodiments, an anti-slip portion is provided on the outer peripheral surface of the adjusting cylinder 61. By providing an anti-slip portion on the outer peripheral surface of the adjusting cylinder 61, the anti-slip portion can play an anti-slip function, so that when the operator rotates the adjusting cylinder 61, it is not easy to slip.

[0052] Among them, the anti-slip portion can be of various structures. For example, the anti-slip portion can be anti-slip bumps provided on the outer wall of the adjusting cylinder 61, or can be anti-slip lines or anti-slip protrusions provided on the outer wall of the adjusting cylinder 61. The specific structure of the anti-slip portion can be determined according to the actual situation.

[0053] In some embodiments, please refer to Figure 3 and Figure 4 , the first connecting member 63 includes a first connecting cylinder 631, a first protrusion is formed at the axial end of the first driven wheel 33, and the first protrusion is received in the first connecting cylinder 631; the second connecting member 64 includes a second connecting cylinder 641, a second protrusion is formed at the axial end of the tension wheel 41, and the second protrusion is received in the second connecting cylinder 641. First protrusions and second protrusions are formed at the axial ends of the first driven wheel 33 and the tension wheel 41. By adopting the connecting cylinders for the first connecting member 63 and the second connecting member 64, the first connecting cylinder 631 is inserted and matched with the first protrusion of the first driven wheel 33, and the second connecting cylinder 641 of the second connecting member 64 can be inserted and matched with the second protrusion of the tension wheel 41, so that the connection between the lead screw 62 and the first driven wheel 33 or the tension wheel 41 can be quickly realized, which is convenient for the quick installation and disassembly of the tension stretching assembly 60 with the first driven wheel 33 or the tension wheel 41, and the installation efficiency is high.

[0054] In some embodiments, please refer to Figure 1 and Figure 2, the cutting machine 100 further includes a second driven wheel assembly 31. The second driven wheel assembly 31 includes a second driven wheel 311 which is rotatably mounted on the frame 10. Along the direction of gravity, the second driven wheel assembly 31 is located on the upper side of the driving wheel assembly 20, and the first driven wheel assembly 30 is located on the lower side of the tension wheel assembly 40. Through the arrangement of the second driven wheel assembly, the cutting wire 50 is wound around the driving wheel 21, the second driven wheel 311, the tension wheel 41 and the first driven wheel 33 to form a closed loop. Compared with relying only on the first driven wheel assembly 30, there are more supporting points for the cutting wire 50, reducing the probability of the cutting wire 50 breaking.

[0055] In some embodiments, please refer to Figure 1 , Figure 5 and Figure 6 , the frame 10 has a front surface 11 and a back surface 12 which are distributed relatively. The driving wheel 21, the first driven wheel 33 and the tension wheel 41 are all mounted on one side of the front surface 11 of the frame 10. The tensioning drive assembly 42 includes a rotating shaft 421, a swing arm 422 and a connecting rod 423. The rotating shaft 421 is rotatably mounted on the frame 10 and penetrates through the front surface 11 and the back surface 12 of the frame 10. The swing arm 422 is arranged on one side of the front surface 11 of the frame 10. One end of the swing arm 422 is connected to the tension wheel 41, and the other end is connected to the rotating shaft 421. The connecting rod 423 is arranged on one side of the back surface 12 of the frame 10. One end of the connecting rod 423 is connected to the rotating shaft 421, and the other end is connected to the counterweight portion 424. By connecting the two ends of the rotating shaft 421 to one end of the swing arm 422 and the connecting rod 423 respectively, connecting the other end of the swing arm 422 to the tension wheel 41, and connecting the other end of the connecting rod 423 to the counterweight portion 424, since the first driven wheel 33 of the first driven wheel assembly 30 is located on the lower side of the tension wheel 41, under the action of the gravity of the counterweight portion 424, the tension wheel 41 can have a tendency to displace away from the first driven wheel assembly 30, thereby giving an initial torque to the tension wheel 41 to balance with the preset tension of the cutting wire 50.

[0056] Among them, the counterweight portion 424 can make the tension of the cutting wire 50 reach 110 N.

[0057] In some embodiments, please refer to Figure 1 , Figure 5 and Figure 6 , the driving wheel assembly 20 includes a driving wheel 21 and a driving motor 22. The driving motor 22 is mounted on one side of the back surface 12 of the frame 10, and the driving motor 22 is used to drive the driving wheel 21 to rotate. By mounting the driving motor 22 on one side of the back surface 12 of the frame 10, the driving motor 22 can drive the driving wheel 21 to rotate, so that the cutting wire 50 wound around the driving wheel 21, the first driven wheel 33 and the tension wheel 41 rotates at a high speed, realizing the cutting operation on the workpiece to be cut.

[0058] In some embodiments, please refer to Figure 1 The frame 10 is provided with a notch 13 for accommodating the workpiece to be cut, and the opening of the notch 13 faces downward along the gravity direction. The notch 13 is provided on the frame 10, so that the notch 13 can give way to the workpiece to be cut, so that the workpiece to be cut is placed at the notch 13, and the cutting line 50 is used to perform the cutting operation on the workpiece to be cut.

[0059] The shape of the notch 13 can be circular, triangular or rectangular. In this embodiment, the shape of the notch 13 is rectangular.

[0060] It should be noted that, in the absence of conflict, the features in the embodiments of this application may be combined with each other.

[0061] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cutting machine, characterized in that, Comprising: Frame; Drive wheel assembly, including a drive wheel, the drive wheel being rotatably mounted on the frame; First driven wheel assembly, including a first driven wheel, the first driven wheel being rotatably mounted on the frame; Tension wheel assembly, including a tension wheel, the tension wheel being rotatably mounted on the frame by a tension driving assembly; Wherein, the cutting machine further includes a tension stretching assembly, the tension stretching assembly being detachably connected between the first driven wheel and the tension wheel, and the tension stretching assembly being used for adjusting the distance between the tension wheel and the first driven wheel.

2. The cutting machine according to claim 1, wherein The tension stretching assembly includes a driving member, a first connecting member and a second connecting member, the driving member being a telescopic device, the first connecting member being used for connecting with the first driven wheel, the second connecting member being used for connecting with the tension wheel, and the driving member being disposed between the first connecting member and the second connecting member for driving the first connecting member and the second connecting member to approach or separate from each other.

3. The cutting machine according to claim 2, wherein The driving member includes: Adjusting cylinder; Two lead screws, respectively disposed at two axial ends of the adjusting cylinder, the thread directions of the two lead screws being opposite and being in threaded cooperation with the adjusting cylinder; the opposite ends of the two lead screws are respectively used for connecting with the first connecting member and the second connecting member; The adjusting cylinder is used for driving the tension wheel to approach or separate from the first driven wheel when rotating along its own axis.

4. The cutting machine according to claim 3, characterized in that, The adjusting cylinder is axially penetrated with an internal thread, and the outer wall of the lead screw has an external thread that is in threaded connection with the internal thread.

5. The cutting machine according to claim 3, characterized in that, An anti-slip portion is provided on the outer peripheral surface of the adjusting cylinder.

6. The cutting machine according to claim 2, characterized in that The first connecting member includes a first connecting cylinder, a first protrusion is formed at an axial end of the first driven wheel, and the first protrusion is received in the first connecting cylinder; the second connecting member includes a second connecting cylinder, a second protrusion is formed at an axial end of the tension wheel, and the second protrusion is received in the second connecting cylinder.

7. The cutting machine according to claim 1, wherein The cutting machine further includes a second driven wheel assembly, the second driven wheel assembly including a second driven wheel, the second driven wheel being rotatably mounted on the frame; Along the gravity direction, the second driven wheel assembly is located on the upper side of the drive wheel assembly, and the first driven wheel assembly is located on the lower side of the tension wheel assembly.

8. The cutting machine according to claim 1, characterized in that, The frame has a front surface and a back surface that are distributed relatively, and the drive wheel, the first driven wheel and the tension wheel are all mounted on one side of the front surface of the frame; The tension driving assembly includes: A rotating shaft, rotatably mounted on the frame, the rotating shaft penetrating through the front surface and the back surface of the frame; A swing arm, disposed on one side of the front surface of the frame, one end of the swing arm being connected to the tension wheel and the other end being connected to the rotating shaft; A connecting rod, disposed on one side of the back surface of the frame, one end of the connecting rod being connected to the rotating shaft and the other end being connected to a counterweight portion.

9. The cutting machine according to claim 8, characterized in that, The drive wheel assembly includes a drive wheel and a drive motor, the drive motor being mounted on one side of the back surface of the frame, and the drive motor being used for driving the drive wheel to rotate.

10. The cutting machine according to claim 1, characterized in that, A notch for accommodating a workpiece to be cut is provided on the frame, and along the gravity direction, the opening of the notch faces downward.

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