Chipless cutting machine

Abstract

The chipless cutting machine comprises a mounting plate, a saw blade cutting device, a chipless cutting device and a control system, the saw blade cutting device and the chipless cutting device are mounted on the mounting plate, and a through hole allowing a pipe to pass through is formed in the center of the mounting plate; the saw blade cutting device comprises a first electric cylinder, a cutting saw blade and a cutting motor, the first electric cylinder is in transmission connection with the cutting saw blade to drive the cutting saw blade to feed and retract towards the through hole, and the cutting motor is in transmission connection with the cutting saw blade to drive the cutting saw blade to rotate around the axis of the cutting saw blade; the chipless cutting device and the saw blade cutting device are oppositely arranged, the chipless cutting device comprises a second electric cylinder and a cutting sharp knife, and the second electric cylinder is in transmission connection with the cutting sharp knife so as to drive the cutting sharp knife to advance and retract towards the through hole; the control system is in signal connection with the first electric cylinder, the cutting motor and the second electric cylinder, and the control system is used for selectively controlling the saw blade cutting device or the chipless cutting device to feed or retract; according to the pipe cutting device, the stability in the cutting process is improved, and pipes of different specifications and pipes with thick pipe walls can be cut.

Description

Technical Field

[0001] The present application relates to the technical field of pipe processing equipment, and in particular to a chipless cutting machine. Background Art

[0002] In the current production of plastic pipes, pipe cutting adopts two cutting methods: saw blade and chipless cutting. The feed method adopts hydraulic or variable frequency mechanical feed. When the specifications of the cut pipe are changed, it is necessary to stop the machine and adjust the feed limit. The center height of the pipe with a particularly large diameter is relatively high, and the adjustment is extremely inconvenient. When the hydraulic feed is used, the closer to the end of the cutting, the greater the pressure of the hydraulic cylinder. Occasionally, the hydraulic cylinder will leak due to excessive pressure, resulting in unstable feed, which affects the cutting effect of the pipe and causes white edges to appear on the pipe cut. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of this application is to provide a chip-free cutting machine.

[0004] To achieve the above purpose, the present application adopts the following technical solution: a chipless cutting machine, comprising A mounting plate with a through hole in the center for the pipe to pass through; A saw blade cutting device is mounted on the mounting plate, the saw blade cutting device comprises a first electric cylinder, a cutting saw blade and a cutting motor, the first electric cylinder is drivingly connected to the cutting saw blade to drive the cutting saw blade to advance and retract toward the through hole, the cutting motor is drivingly connected to the cutting saw blade to drive the cutting saw blade to rotate around its own axis; a chipless cutting device, mounted on the other side of the through hole opposite to the saw blade cutting device, the chipless cutting device comprising a second electric cylinder and a cutting knife, the second electric cylinder being drivingly connected to the cutting knife to drive the cutting knife to advance and retract toward the through hole; and The control system is connected with the first electric cylinder, the cutting motor and the second electric cylinder by signal, and the control system is used to selectively control the advance and retreat of the saw blade cutting device or the chipless cutting device.

[0005] In the above technical solution, it is further preferred that the saw blade cutting device includes a first transmission mechanism that is transmission-connected between the first electric cylinder and the cutting saw blade, the first transmission mechanism includes a saw blade support shaft perpendicular to the mounting plate, a saw blade swivel arm rotatably mounted on the mounting plate via the saw blade support shaft, and a motor base plate connected to the saw blade swivel arm, the cutting motor is mounted on the motor base plate, one end of the saw blade swivel arm is hinged to the first electric cylinder, and the cutting saw blade is rotationally mounted on the other end of the saw blade swivel arm.

[0006] In the above technical solution, it is further preferred that the saw blade cutting device also includes an adjustment seat, and the adjustment seat is transmission-connected between the mounting plate and the first electric cylinder, and the first electric cylinder can move back and forth in a straight line through the adjustment seat.

[0007] In the above technical solution, it is further preferred that the cutting motor is connected to the cutting saw blade through a belt transmission mechanism, the belt transmission mechanism includes a first pulley, a second pulley and a belt simultaneously tensioned on the first pulley and the second pulley, the first pulley is coaxially sleeved on the transmission shaft of the cutting motor, and the second pulley is coaxially arranged with the cutting saw blade.

[0008] In the above technical scheme, it is further preferred that the chip-free cutting device includes a second transmission mechanism that is transmission-connected between the second electric cylinder and the cutting knife, the second transmission mechanism includes a knife support shaft perpendicular to the mounting plate and a chip-free rotating arm rotatably mounted on the mounting plate through the knife support shaft, one end of the chip-free rotating arm is hinged to the second electric cylinder, and the other end of the chip-free rotating arm is connected to the cutting knife.

[0009] In the above technical solution, it is further preferred that the cutting saw blade is a circular blade with a circle of saw teeth arranged circumferentially, and the cutting knife is a blade with a triangular tip.

[0010] Compared with the prior art, the present invention has the following beneficial effects: The present application uses two electric cylinders to drive the cutting saw blade and the cutting knife respectively for cutting, thereby improving the stability during the cutting process and being able to adjust the feed amount in time to be able to cut pipes of different specifications. The electric cylinder drives the blade to cut, thereby enhancing the cutting strength, and is suitable for cutting pipes with thicker walls, thereby expanding the scope of application of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A schematic diagram of the structure of a cutting saw blade feed of a chipless cutting machine provided in an embodiment of the present application; Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A; Figure 3 for Figure 1 Schematic diagram of the structure of the cutting knife feeding.

[0012] Among them: 10, mounting plate; 1, through hole; 20, saw blade cutting device; 2, first electric cylinder; 3, cutting saw blade; 4, cutting motor; 5, first transmission mechanism; 51, saw blade support shaft; 52, saw blade rotating arm; 53, motor bottom plate; 6, adjustment seat; 61, seat body; 62, guide rail; 63, slider; 64, lead screw; 65, lead screw nut; 7, belt transmission mechanism; 71, first pulley; 72, second pulley; 73, belt; 30, chip-free cutting device; 8, second electric cylinder; 9, cutting knife; 11, second transmission mechanism; 111, knife support shaft; 112, chip-free rotating arm. DETAILED DESCRIPTION

[0013] To describe the technical content, structural features, achieved purpose and effect of the application in detail, the technical solutions in the embodiments of the application will be described below in conjunction with the drawings in the embodiments of the application. Obviously, the described embodiments are only a part of the embodiments of the application, rather than all of the embodiments. In the following description, for the purpose of explanation, many specific details are set forth to provide a detailed description of various exemplary embodiments or implementations of the invention. However, various exemplary embodiments may also be implemented without these specific details or in the case of one or more equivalent arrangements. In addition, various exemplary embodiments may be different, but not necessarily exclusive. For example, without departing from the inventive concept, the specific shape, structure and characteristics of the exemplary embodiment may be used or implemented in another exemplary embodiment.

[0014] The present application embodiment provides a chipless cutting machine, such as Figure 1 As shown, the chipless cutting machine includes: a mounting plate 10, a saw blade cutting device 20 and a chipless cutting device 30 arranged opposite to each other, and a control system (not shown in the figure) for selectively controlling the advance and retreat of the saw blade cutting device 20 or the chipless cutting device 30.

[0015] The mounting plate 10 is mounted on a frame for conveying pipes, and a through hole 1 is provided in the center of the mounting plate 10 for the pipes to pass through. The saw blade cutting device 20 and the chipless cutting device 30 surround the through hole 1 and are mounted on the same side of the mounting plate 10 opposite to each other. The mounting plate 10 is configured to be able to rotate around the center line of the through hole 1, so that the saw blade cutting device 20 or the chipless cutting device 30 cuts the pipe at the through hole 1.

[0016] like Figure 1 , 3 As shown, the saw blade cutting device 20 includes a first electric cylinder 2, a cutting saw blade 3 and a cutting motor 4. The first electric cylinder 2 is connected to the cutting saw blade 3 for driving the cutting saw blade 3 to move toward the inside of the through hole 1 to advance the saw blade and toward the outside of the through hole 1 to retract the saw blade. The cutting motor 4 is connected to the cutting saw blade 3 for driving the cutting saw blade 3 to rotate around its own axis. The rotating cutting saw blade 3 can cut the pipe at the through hole 1 when advancing the saw blade.

[0017] The saw blade cutting device 20 further includes a first transmission mechanism 5 which is transmission-connected between the first electric cylinder 2 and the cutting saw blade 3. The first transmission mechanism 5 includes a saw blade support shaft 51 which is perpendicular to the mounting plate 10, a saw blade rotating arm 52 which is rotationally mounted on the mounting plate 10 via the saw blade support shaft 51, and a motor base plate 53 which is connected to the saw blade rotating arm 52. The cutting motor 4 is mounted on the motor base plate 53, one end of the saw blade rotating arm 52 is hinged to the first electric cylinder 2, and the cutting saw blade 3 is rotationally mounted on the other end of the saw blade rotating arm 52. When the telescopic rod of the first electric cylinder 2 is extended or retracted, the saw blade rotating arm 52 rotates around the saw blade support shaft 51, thereby driving the cutting saw blade 3 to move to the inside of the through hole 1 or retreat to the outside of the through hole 1.

[0018] like Figure 1 , 2 As shown, the saw blade cutting device 20 also includes an adjustment seat 6, which is transmission-connected between the mounting plate 10 and the first electric cylinder 2. The first electric cylinder 2 can move back and forth along a straight line through the adjustment seat 6. The adjustment seat 6 can adjust the position of the first electric cylinder 2 on the mounting plate 10, thereby adjusting the feed amount of the cutting saw blade 3. The adjustment seat 6 includes a seat body 61, a guide rail 62 extending along a straight line, a slider 63 slidably matched with the guide rail 62, a screw rod 64 connected to the slider 63, and a screw rod nut 65 installed on the seat body 61, the screw rod 64 is threadedly connected to the screw rod nut 65, and the cylinder body of the first electric cylinder 2 is hinged to the slider 63.

[0019] The cutting motor 4 is connected to the cutting saw blade 3 by a belt transmission, and a belt transmission mechanism 7 is connected between the cutting motor 4 and the cutting saw blade 3. The belt transmission mechanism 7 includes a first pulley 71, a second pulley 72, and a belt 73 that is simultaneously tensioned on the first pulley 71 and the second pulley 72. The first pulley 71 is coaxially sleeved on the transmission shaft of the cutting motor 4, and the second pulley 72 is coaxially arranged with the cutting saw blade 3. When the cutting motor 4 is started, the belt transmission mechanism 7 transmits the cutting motor 4 to the cutting saw blade 3, so that the cutting saw blade 3 rotates around its own axis, thereby improving the cutting efficiency of the pipe at the through hole 1. In the embodiment of the present application, the cutting saw blade 3 is a circular blade with a circle of saw teeth arranged circumferentially.

[0020] like Figure 1 , 3 As shown, the chip-free cutting device 30 includes a second electric cylinder 8 and a cutting knife 9. The second electric cylinder 8 is transmission-connected to the cutting knife 9 and is used to drive the cutting knife 9 to move toward the inside of the through hole 1 to advance the knife and toward the outside of the through hole 1 to retract the knife.

[0021] The chip-free cutting device 30 also includes a second transmission mechanism 11 that is transmission-connected between the second electric cylinder 8 and the cutting knife 9. The second transmission mechanism 11 includes a knife support shaft 111 perpendicular to the mounting plate 10 and a chip-free rotating arm 112 that is rotationally mounted on the mounting plate 10 through the knife support shaft 111. One end of the chip-free rotating arm 112 is hinged to the second electric cylinder 8, and the other end of the chip-free rotating arm 112 is connected to the cutting knife 9. When the telescopic rod of the second electric cylinder 8 is extended or retracted, the chip-free rotating arm 112 rotates around the knife support shaft 111, thereby driving the cutting knife 9 to move to the inside of the through hole 1 or retreat to the outside of the through hole 1. In the embodiment of the present application, the cutting knife 9 is a blade with a triangular tip.

[0022] The control system is connected to the first electric cylinder 2, the cutting motor 4 and the second electric cylinder 8 by signal. The control system selectively controls the saw blade cutting device 20 or the chipless cutting device 30 to advance or retract according to the specifications of the pipe and the current working conditions. In the present application, the chipless cutting device 30 is preferentially controlled to advance and cut the pipe. When the current pipe or working conditions are not suitable for chipless cutting, the saw blade cutting device 20 is controlled to advance and cut the pipe. The control system adjusts the cutting saw blade 3 and the cutting knife 9 by controlling the first cylinder 2 and the second electric cylinder 8, so that it can be suitable for cutting pipes of different diameters. The control system also includes a control panel that can display various working parameters of the chipless cutting machine. The operator can also adjust the feed amount and feed speed of the cutting saw blade 3 and the cutting knife 9 through the control panel.

[0023] The first electric cylinder 2 and the second electric cylinder 8 help to stabilize the advance and retract of the cutting saw blade 3 and the cutting knife 9, improve the stability during the cutting process, and can adjust the feed amount in time to be able to cut pipes of different specifications. The electric cylinder drives the blade to cut, thereby enhancing the cutting strength. It can be suitable for cutting pipes with thicker walls, thereby expanding the scope of application of the equipment.

[0024] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, and the scope of protection required by the present application is defined by the attached claims, description and their equivalents.

Claims

1. A chipless cutting machine, characterized in that: include A mounting plate with a through hole in the center for the pipe to pass through; A saw blade cutting device is mounted on the mounting plate, the saw blade cutting device comprises a first electric cylinder, a cutting saw blade and a cutting motor, the first electric cylinder is drivingly connected to the cutting saw blade to drive the cutting saw blade to advance and retract toward the through hole, the cutting motor is drivingly connected to the cutting saw blade to drive the cutting saw blade to rotate around its own axis; A chipless cutting device is installed on the other side of the through hole opposite to the saw blade cutting device, and the chipless cutting device includes a second electric cylinder and a cutting knife, and the second electric cylinder is drivingly connected to the cutting knife to drive the cutting knife to advance and retreat toward the through hole; and The control system is connected with the first electric cylinder, the cutting motor and the second electric cylinder by signal, and the control system is used to selectively control the advance and retreat of the saw blade cutting device or the chipless cutting device.

2. The chipless cutting machine according to claim 1, characterized in that: The saw blade cutting device includes a first transmission mechanism that is transmission-connected between the first electric cylinder and the cutting saw blade, the first transmission mechanism includes a saw blade support shaft perpendicular to the mounting plate, a saw blade swivel arm rotatably mounted on the mounting plate via the saw blade support shaft, and a motor base plate connected to the saw blade swivel arm, the cutting motor is mounted on the motor base plate, one end of the saw blade swivel arm is hinged to the first electric cylinder, and the cutting saw blade is rotationally mounted on the other end of the saw blade swivel arm.

3. The chipless cutting machine according to claim 2, characterized in that: The saw blade cutting device also includes an adjustment seat, which is transmission-connected between the mounting plate and the first electric cylinder. The first electric cylinder can move back and forth along a straight line through the adjustment seat.

4. The chipless cutting machine according to claim 2, characterized in that: The cutting motor is connected to the cutting saw blade via a belt transmission mechanism, which includes a first pulley, a second pulley, and a belt that is simultaneously tensioned on the first pulley and the second pulley. The first pulley is coaxially sleeved on the transmission shaft of the cutting motor, and the second pulley is coaxially arranged with the cutting saw blade.

5. The chipless cutting machine according to claim 1, characterized in that: The chip-free cutting device includes a second transmission mechanism that is transmission-connected between the second electric cylinder and the cutting knife. The second transmission mechanism includes a knife support shaft that is perpendicular to the mounting plate and a chip-free rotating arm that is rotationally mounted on the mounting plate via the knife support shaft. One end of the chip-free rotating arm is hinged to the second electric cylinder, and the other end of the chip-free rotating arm is connected to the cutting knife.

6. The chipless cutting machine according to claim 1, characterized in that: The cutting saw blade is a circular blade with a circle of saw teeth arranged in the circumference, and the cutting knife is a blade with a triangular tip.

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