CN209999246U - PVC pipe special cutting tool convenient for blade reversing - Google Patents

Abstract

PVC pipe special cutting tool convenient for blade reversing comprises a tool bar and a diamond-shaped tool bit arranged at the end of the tool bar, and is characterized by further comprising a rotating shaft used for installing the diamond-shaped tool bit at the end of the tool bar and a bolt used for locking the diamond-shaped tool bit, wherein the diamond-shaped tool bit is installed in a groove of the end of the tool bar through the rotating shaft and installed on the rotating shaft through the cooperation of the bolt and a screw hole in the rotating shaft, and the bolt is used for positioning the rotating shaft.

Description

PVC pipe special cutting tool convenient for blade reversing

Technical Field

The utility model relates to a cutting tool, especially make things convenient for the switching-over special cutting tool of PVC pipe who uses of cutting edge.

Background

When the PVC pipe is produced by the extruder, a cutting tool is required to cut off the pipe and chamfer the pipe at intervals of periods, the cutting tool used for cutting off the pipe opening chamfer of the pipe is composed of a cutter bar 1 and diamond-shaped cutter bits fixed in angular grooves of the end of the cutter bar through bolts, the two ends of each diamond-shaped cutter bit are symmetrically provided with cutting edges used for cutting off the pipe opening chamfer of the pipe, the cutting edge at the end of arranged in the angular grooves of the cutter bar is exposed outwards, the cutting edge at the end of is hidden in the angular grooves of the cutter bar, when the cutting edge at the end of of each diamond-shaped cutter bit needs to be switched to another end cutting edge for use after being worn, an inner hexagonal wrench is required to loosen an assembling bolt of the diamond-shaped cutter bits, then the diamond-shaped cutter bits are rotated to switch the other end cutting.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that remedy above-mentioned prior art's defect, provide special cutting tool of PVC pipe that make things convenient for the cutting edge switching-over to use.

The utility model discloses make things convenient for the special cutting tool of PVC pipe that the cutting edge switching-over was used's technical problem to solve through following technical scheme.

This kind of make things convenient for special cutting tool of PVC pipe that cutting edge switching-over used includes: the cutter arbor and the setting are at the rhombus tool bit of cutter arbor end.

The special cutting tool for the PVC pipe convenient for the reversing of the cutting edge is characterized in that:

the rotary shaft used for the diamond cutter head to be mounted on the cutter bar end and the bolt used for locking the diamond cutter head;

the two groove walls of the notch are transversely provided with a rotating shaft penetrating through hole for inserting a rotating shaft, and the end face of the groove wall at the side of the cutter bar notch is provided with a pin hole perpendicular to the rotating shaft penetrating through hole;

the center of the end face of the rhombic cutter head is provided with a through hole for mounting the rhombic cutter head on the rotating shaft;

a knob convenient to operate is arranged at the end of the rotating shaft , a screw hole corresponding to the end face through hole of the diamond-shaped cutter head is arranged at the middle section of the rotating shaft, and a pin hole is arranged at the tail end of the rotating shaft corresponding to the end face pin hole of the cutter bar notch;

the rhombic tool bit is arranged in the notch of the end of the tool bar through a rotating shaft and is arranged on the rotating shaft by utilizing the matching of a bolt and a screw hole on the rotating shaft;

the bolt is inserted into the pin hole of the rotating shaft from the pin hole of the side groove wall of the cutter bar notch to realize the positioning of the rotating shaft.

The utility model discloses make things convenient for the special cutting tool of PVC pipe's that the cutting edge switching-over was used technical problem to solve through step technical scheme that advance below.

The exposed end of the bolt is provided with a handle which is convenient for the bolt to be pulled out.

The utility model discloses make things convenient for special cutting tool of PVC pipe that cutting edge switching-over used has the beneficial effect that need change another end cutting edge and use after end cutting edges of rhombus tool bit wear, need not utilize any instrument, only need extract the bolt with the hand, the rotation axis just is in rotatable state this moment, install the rhombus tool bit of rotating epaxial and do along with the rotation axis rotation, the user can conveniently select the outside uncovered cutting edge of rhombus tool bit through rotating the rotation axis, then insert the location that the bolt realized the rotation axis again, the rhombus tool bit is fixed promptly, the cutting edge switching of this kind of rhombus tool bit is not only quick but also safe, and can not lead to tubular product to scrap or do over again.

Drawings

FIG. 1 is a schematic structural view of a conventional cutting tool dedicated for PVC pipes;

FIG. 2 is a schematic structural view of a special PVC pipe cutting tool convenient for blade reversing;

fig. 3 is an exploded structural schematic view of the special cutting tool for PVC pipe shown in fig. 2, which facilitates the blade reversal.

Detailed Description

Example (b): as can be clearly seen from fig. 2 and 3, the cutter bar 1 of the special cutting tool for PVC pipes, which is convenient for the reversal of the cutting edge, is the same as the cutter bar 1 of the existing special cutting tool for PVC pipes, and is adapted to be conveniently detached from the tool post, and the end of the cutter bar 1 is provided with the rhombic tool bit 2. The difference lies in that:

is also included for the rotating shaft 3 of the diamond cutter head 2 arranged at the end of the cutter bar 1 and the bolt 4 for locking the diamond cutter head 2, and the bolt 5 for fixing the diamond cutter head 2 on the rotating shaft 3.

The two ends of the rhombic cutter head 2 are respectively provided with a cutting edge 21 and a cutting edge 22, the middle part of the rhombic cutter head 2 is provided with a serial through hole 23 for inserting a rotating shaft, and the center of the end surface of the rhombic cutter head 2 is provided with a through hole 24 for installing the rhombic cutter head on the rotating shaft 3.

The end of the cutter bar 1 is provided with a notch 11 for mounting the diamond cutter head 2, the notch 11 is internally provided with an angular groove 12 which is matched with blades 21 and 22 at two ends of the diamond cutter head 2, the tip of the angular groove 12 is provided with a clearance hole 13 for preventing the blades from being damaged, two groove walls 14 and 15 of the notch 11 are transversely provided with a rotating shaft penetrating through hole 16 for inserting the rotating shaft 3, and the end surface of the groove wall 15 at the side of the notch 11 is provided with a pin hole 17 which is vertical to the rotating shaft penetrating through hole 16.

The end of the rotating shaft 3 is provided with a knob 31 convenient for operation, the middle section of the rotating shaft 3 is provided with a screw hole 32 corresponding to the end surface through hole 23 of the diamond-shaped cutter head 2, and the tail end of the rotating shaft 3 is provided with a pin hole 30 corresponding to the end surface pin hole 17 of the groove wall 14 at the side of the notch 11 .

The rhombic cutting head 2 is arranged in the cutting head end notch 11 through the rotating shaft 3 and is arranged on the rotating shaft 3 by matching the bolt 5 with the screw hole 32 on the rotating shaft 3.

The bolt 4 is inserted into the pin hole 33 of the rotating shaft 3 from the pin hole 17 on the end face of the cutter bar notch 11 side groove wall 14 to realize the positioning of the rotating shaft 3.

The use method of the special PVC pipe cutting tool convenient for the direction change of the cutting edge comprises the steps that when the cutting edge at the 2 end of the diamond-shaped tool bit 2 needs to be replaced by another cutting edge end after being worn, no tool is needed, only the bolt 4 needs to be pulled out by hand, the diamond-shaped tool bit 2 arranged on the rotating shaft 3 can rotate, a user can conveniently rotate the cutting edge at the other end of the diamond-shaped tool bit to the cutting direction, then the bolt 4 is inserted again to achieve the positioning of the rotating shaft 3, and the diamond-shaped tool bit 2 is fixed.

To those skilled in the art to which the invention pertains, equivalent substitutions or obvious modifications may be made without departing from the spirit of the invention, and all such equivalents or obvious modifications as are deemed to fall within the scope of the invention as defined by the appended claims.

Claims (2)

1, PVC pipe special cutting tools convenient for the reversal of cutting edge, comprising a tool bar and a diamond-shaped tool bit arranged at the end of the tool bar, characterized in that the tool also comprises a rotating shaft used for the diamond-shaped tool bit to be arranged at the end of the tool bar and a bolt used for locking the diamond-shaped tool bit;

the two groove walls of the notch are transversely provided with a rotating shaft penetrating through hole for inserting a rotating shaft, and the end face of the groove wall at the side of the cutter bar notch is provided with a pin hole perpendicular to the rotating shaft penetrating through hole;

the center of the end face of the rhombic cutter head is provided with a through hole for mounting the rhombic cutter head on the rotating shaft;

a knob convenient to operate is arranged at the end of the rotating shaft , a screw hole corresponding to the end face through hole of the diamond-shaped cutter head is arranged at the middle section of the rotating shaft, and a pin hole is arranged at the tail end of the rotating shaft corresponding to the end face pin hole of the cutter bar notch;

the rhombic tool bit is arranged in the notch of the end of the tool bar through a rotating shaft and is arranged on the rotating shaft by utilizing the matching of a bolt and a screw hole on the rotating shaft;

the bolt is inserted into the pin hole of the rotating shaft from the pin hole of the side groove wall of the cutter bar notch to realize the positioning of the rotating shaft.

2. The PVC pipe special cutting tool convenient for blade reversing according to claim 1, characterized in that:

the exposed end of the bolt is provided with a handle which is convenient for the bolt to be pulled out.

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