PVC pipe cutting device

Abstract

The utility model discloses a PVC pipe cutting device which comprises a base, and a saw cutting mechanism is arranged on the base. The saw cutting mechanism comprises a suspension frame arranged above the base, a guide column is fixedly connected between the suspension frame and the base, a guide sleeve is slidably connected to the guide column, a lead screw is rotatably connected between the suspension frame and the base, a lead screw nut is in threaded connection to the lead screw, a lifting frame is connected between the lead screw nut and the guide sleeve, and a portal frame is slidably connected to the lifting frame; the gantry is provided with cantilevers, a saw blade is connected between the cantilevers, a limiting hole is formed in the gantry, a cam shaft rotationally connected to the lifting frame is slidably connected into the limiting hole, a cam is arranged at one end of the cam shaft, a first driving mechanism is arranged at the other end of the cam shaft, a baffle is arranged on the rear side of the cam, and a traction assembly is arranged on the front side of the cam. And a side frame is connected between the suspension frame and the base. The cutting device has the advantages of being high in adaptability, flexible and convenient to use, complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, and more specifically, to a PVC pipe cutting device. Background Art

[0002] The conventional equipment or device used for cutting PVC pipes is large in size, and the diameter of the circular saw blade installed thereon for high-speed rotation is also large, otherwise it cannot be used for cutting pipes with larger diameters, resulting in large input power of the equipment, high energy consumption, and poor overall effect. Accordingly, the utility model proposes a PVC pipe cutting device. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and to provide a PVC pipe cutting device, which has the characteristics of strong adaptability and flexible and convenient use.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved as follows: the utility model relates to a PVC pipe cutting device, comprising a base, on which a sawing mechanism arranged on the left or on the right is provided;

[0005] The sawing mechanism includes a suspension arranged above the base, a guide column is fixedly connected between the suspension and the base, a guide sleeve is slidably connected to the guide column, a lead screw is rotatably connected between the suspension and the base, a lead screw nut is threadedly connected to the lead screw, a lifting frame is connected between the lead screw nut and the guide sleeve, a door frame that moves forward and backward is slidably connected to the lifting frame, the door frame has two cantilevers that are symmetrically arranged front and back and extend downward, a saw blade is connected between the cantilevers, a limiting hole that extends forward and backward is opened on the door frame, a cam shaft that is rotatably connected to the lifting frame is slidably connected in the limiting hole, One end of the camshaft is provided with a cam for following movement, and the other end is transmission-connected with a first driving mechanism for controlling rotation. The first driving mechanism is arranged on the lifting frame, the rear side of the cam is provided with a baffle plate, and the front side is provided with a traction assembly, the wheel surface of the cam is tightly attached to the baffle plate, the traction assembly includes a fixed pull pin arranged on the lifting frame, and a movable pull pin arranged on the door frame, a tension spring is connected between the movable pull pin and the fixed pull pin, one end of the lead screw is transmission-connected with a second driving mechanism for controlling rotation, the second driving mechanism is arranged on the base or the suspension, and a side frame is connected between the suspension and the base.

[0006] The utility model is further configured as follows: the base is provided with a first linear guide rail extending left and right, the first linear guide rail is slidably connected with a first linear slider, the first linear slider is provided with a left positioning block and a right positioning block for follow-up, and the right positioning block and the left positioning block are both provided with a V-groove with the notch upward.

[0007] The utility model is further configured as follows: the lifting frame is provided with a second linear guide rail extending forward and backward, the second linear guide rail is slidably connected with a second linear slide block, and the door frame is arranged on the second linear slide block.

[0008] The utility model is further configured as follows: the first driving mechanism and the second driving mechanism both include a motor and a reducer.

[0009] The utility model is further configured as follows: the second driving mechanism is arranged on the suspension.

[0010] In summary, the utility model has the following beneficial effects: the PVC pipe cutting device involved in the utility model first positions the pipe to be cut by using a positioning block so that it is located under the saw blade, and then drives the door frame to swing back and forth through a rotating cam, while the lead screw pair drives the door frame to move slowly downward, thereby realizing the function of the saw blade to cut the pipe. It can be used for cutting pipes of different diameters, the equipment has low input power, small size design, flexible and convenient use, and is safe and reliable, with complete overall functions and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 It is a schematic diagram of the overall structure of the sawing mechanism of the utility model;

[0013] Figure 3 It is a partial structural schematic diagram of the utility model for reflecting the sawing mechanism;

[0014] Figure 4 The utility model is a structural schematic diagram for embodying a left positioning block. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0016] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0017] Example 1

[0018] See also Figures 1 to 4As shown, a PVC pipe cutting device according to this embodiment includes a base 1, on which a sawing mechanism 100 arranged on the left or on the right is provided;

[0019] The sawing mechanism 100 includes a suspension 2 arranged above the base 1, a guide column 3 is fixedly connected between the suspension 2 and the base 1, a guide sleeve 4 is slidably connected to the guide column 3, a lead screw 5 is rotatably connected between the suspension 2 and the base 1, a lead screw nut 6 is threadedly connected to the lead screw 5, a lifting frame 7 is connected between the lead screw nut 6 and the guide sleeve 4, a door frame 8 for forward and backward movement is slidably connected to the lifting frame 7, the door frame 8 has two cantilevers 81 that are symmetrically arranged front and back and extend downward, a saw blade 9 is connected between the cantilevers 81, a limiting hole 82 extending front and back is opened on the door frame 8, a camshaft 10 rotatably connected to the lifting frame 7 is slidably connected in the limiting hole 82, and the camshaft 10 rotatably connected to the lifting frame 7 is slidably connected in the limiting hole 82. A cam 11 is provided at one end of the wheel axle 10 for following movement, and a first driving mechanism 12 for controlling rotation is connected to the other end of the wheel axle 10 in a transmission manner. The first driving mechanism 12 is arranged on the lifting frame 7. A baffle 13 is provided on the rear side of the cam 11, and a traction assembly is provided on the front side. The wheel surface of the cam 11 is tightly attached to the baffle 13. The traction assembly includes a fixed pull pin 14 provided on the lifting frame 7 and a movable pull pin 15 provided on the door frame 8. A tension spring 16 is connected between the movable pull pin 15 and the fixed pull pin 14. One end of the lead screw 5 is connected to a second driving mechanism 17 for controlling rotation. The second driving mechanism 17 is provided on the suspension 2. A side frame 18 is connected between the suspension 2 and the base 1.

[0020] Furthermore, the lifting frame 7 is provided with a second linear guide rail 24 extending forward and backward, a second linear slide block 25 is slidably connected to the second linear guide rail 24 , and the door frame 8 is arranged on the second linear slide block 25 .

[0021] Furthermore, the first driving mechanism 12 and the second driving mechanism 17 both include a motor and a reducer.

[0022] In this embodiment, the second driving mechanism 17 is operated to drive the camshaft 10 and the cam 11 thereon to rotate, and the cam 11 pushes the baffle 13 at a high frequency. Under the pulling action of the traction assembly, the door frame 8 carries the saw blade 9 and moves back and forth at a high frequency relative to the lifting frame 7, and moves downward slowly, thereby realizing the cutting function of the pipe located below the saw blade 9.

[0023] The principle of the lifting frame 7 moving downward is as follows: the second driving mechanism 17 operates to drive the lead screw 5 to rotate clockwise, and the lead screw nut 6 moves downward slowly relative to the lead screw 5. At the same time, the lifting frame 7 connected to the lead screw nut 6 also moves downward slowly.

[0024] The guide column 3 cooperates with the guide sleeve 4 to provide a sliding guide for the lifting frame 7 when it moves up and down.

[0025] Example 2

[0026] See also Figures 1 to 4 As shown, the PVC pipe cutting device involved in this embodiment is further configured on the basis of Embodiment 1, wherein the base 1 is provided with a first linear guide rail 19 extending left and right, the first linear guide rail 19 is slidably connected with a first linear slider 20, the first linear slider 20 is provided with a left positioning block 21 and a right positioning block 22 for follow-up, and the right positioning block 22 and the left positioning block 21 are both provided with a V-shaped groove 23 with the notch upward.

[0027] In this embodiment, by providing a first linear guide rail 19 and a first linear slider 20 on the base 1, the left positioning block 21 and the right positioning block 22 arranged on the base 1 can move left and right relative to the base 1, so as to facilitate the clamping and positioning of pipes of different lengths.

[0028] The PVC pipe cutting device involved in the utility model first positions the pipe to be cut by using a positioning block so that it is located below the saw blade, and then drives the door frame to swing back and forth through a rotating cam, and at the same time the lead screw pair drives the door frame to move slowly downward, so that the saw blade can cut the pipe. The device can be used for cutting pipes of different diameters, has low input power, small size design, flexible and convenient use, and is safe and reliable, with complete overall functions and strong practicality.

[0029] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0030] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A PVC pipe cutting device, comprising a base, characterized in that: The base is provided with a sawing mechanism arranged on the left or on the right; The sawing mechanism includes a suspension arranged above the base, a guide column is fixedly connected between the suspension and the base, a guide sleeve is slidably connected to the guide column, a lead screw is rotatably connected between the suspension and the base, a lead screw nut is threadedly connected to the lead screw, a lifting frame is connected between the lead screw nut and the guide sleeve, a door frame that moves forward and backward is slidably connected to the lifting frame, the door frame has two cantilevers that are symmetrically arranged front and back and extend downward, a saw blade is connected between the cantilevers, a limiting hole that extends forward and backward is opened on the door frame, a cam shaft that is rotatably connected to the lifting frame is slidably connected in the limiting hole, One end of the camshaft is provided with a cam for following movement, and the other end is transmission-connected with a first driving mechanism for controlling rotation. The first driving mechanism is arranged on the lifting frame, the rear side of the cam is provided with a baffle plate, and the front side is provided with a traction assembly, the wheel surface of the cam is tightly attached to the baffle plate, the traction assembly includes a fixed pull pin arranged on the lifting frame, and a movable pull pin arranged on the door frame, a tension spring is connected between the movable pull pin and the fixed pull pin, one end of the lead screw is transmission-connected with a second driving mechanism for controlling rotation, the second driving mechanism is arranged on the base or the suspension, and a side frame is connected between the suspension and the base.

2. The PVC pipe cutting device according to claim 1, characterized in that: The base is provided with a first linear guide rail extending left and right, the first linear guide rail is slidably connected with a first linear slider, the first linear slider is provided with a left positioning block and a right positioning block for follow-up, and the right positioning block and the left positioning block are both provided with a V-shaped groove with the notch upward.

3. The PVC pipe cutting device according to claim 1 or 2, characterized in that: The lifting frame is provided with a second linear guide rail extending forward and backward, the second linear guide rail is slidably connected with a second linear slide block, and the door frame is arranged on the second linear slide block.

4. The PVC pipe cutting device according to claim 3, characterized in that: The first driving mechanism and the second driving mechanism both include a motor and a reducer.

5. The PVC pipe cutting device according to claim 1, characterized in that: The second driving mechanism is arranged on the suspension.

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