CN-114750456-B - Corner cutter and grooving machine using same

CN114750456BCN 114750456 BCN114750456 BCN 114750456BCN-114750456-B

Abstract

The invention discloses a corner cutter and a grooving machine using the corner cutter, wherein a first rotating shaft is arranged on a cutter seat, a connecting block is rotationally connected to the first rotating shaft, a first blade is fixed on one side surface of the connecting block, the length direction of the first blade is in an acute angle or an obtuse angle with the axis of the first rotating shaft, an elastic pad is arranged on one side of the connecting block far away from the first blade, the elastic pad is fixed on the cutter seat, one end of the first blade is firstly contacted with a paperboard and then gradually changed into the other end to be contacted with the paperboard in the use process, and in the changing process, when the stress position of the first blade is changed, the connecting block and the first rotating shaft relatively rotate, so that the distance between the position of a cutting edge of the first blade when cutting the paperboard and the axis of the rotating shaft is equal, and the reaction force of the paperboard to the first blade is mainly concentrated on the first rotating shaft and the cutter seat in the paperboard cutting process, and the first rotating shaft is in a solid structure, so that the strength is high and the cutter is not easy to be damaged.

Inventors

FANG HAOMING
XIONG ZILIANG
LI HUAGANG

Assignees

广东东方精工科技股份有限公司
广东东方精工科技股份有限公司

Dates

Publication Date: 20260421
Application Date: 20220424
Priority Date: 20220303

Claims (5)

1. The angle cutter comprises a cutter seat and a first blade, and is characterized in that the cutter seat is provided with a first rotating shaft, a connecting block is rotationally connected to the first rotating shaft, the first blade is fixed on one side surface of the connecting block, the length direction of the first blade and the axis of the first rotating shaft form an acute angle or an obtuse angle, an elastic pad is arranged on one side, far away from the first blade, of the connecting block, and the elastic pad is fixed on the cutter seat; the cutter holder is provided with a second rotating shaft, the second rotating shaft is rotationally connected with a mounting plate, the first rotating shaft is fixed on the mounting plate, and the axis of the second rotating shaft is perpendicular to the axis of the first rotating shaft; The tool rest is provided with a locking structure for locking the tool rest on the fixed seat; the locking structure comprises a telescopic piece fixed on the tool apron and a locking piece fixed at the telescopic end of the telescopic piece, and clamping grooves matched with the locking piece are formed in two sides of the sliding groove of the fixed seat; the telescopic piece comprises a jacket, a compression spring and a telescopic rod, wherein the telescopic rod penetrates through a central hole of the jacket and is in sliding connection with the jacket, the locking piece is fixed at one end of the telescopic rod, a limiting rod is fixed at one end of the telescopic rod far away from the locking piece, a convex ring is arranged at one end of the jacket close to the locking piece, the compression spring is sleeved outside the shell, and two ends of the compression spring are respectively abutted with the convex ring and the limiting rod; The tool apron comprises a mounting plate and a pressing plate fixedly connected to the mounting plate, a first step through hole is formed in the mounting plate, a sleeve is arranged in the first step through hole, a convex ring of the sleeve is abutted to a step on the first step through hole, the cross section of one end of the sleeve, which is far away from the convex ring, is in a non-circular shape, a second step through hole matched with one end of the sleeve, which is in the non-circular shape, is formed in the pressing plate, the second step through hole comprises a first step hole and a second step hole, the first step hole is matched with one end of the sleeve, which is in the non-circular shape, and the second step hole forms an avoidance hole.
2. The corner cutter of claim 1, wherein the first shaft is threadably connected to a lock nut for securing the connection block at an end remote from the mounting plate.
3. The corner cutter of claim 1, wherein the seat is provided with a second blade having a length perpendicular to the axis of the first shaft.
4. The corner cutter of claim 3, wherein the mounting plate is slidably coupled to the mounting base and the second blade is secured to the pressure plate.
5. The grooving machine is characterized by comprising the corner cutting tool according to any one of claims 1-4, and comprises a frame, a rotating shaft rotatably connected to the frame, and a cutter head fixed on the rotating shaft, wherein the corner cutting tool is fixed on the cutter head, one end of the rotating shaft is in transmission connection with a driving component, and the driving component is fixed on the frame.

Description

Corner cutter and grooving machine using same Technical Field The invention relates to the field of carton production equipment, in particular to a corner cutter and a grooving machine using the corner cutter. Background The grooving machine for the corrugated paper box is equipment for grooving the edge part in the production process of the corrugated paper box. In the production of corrugated cartons, it is necessary to slot and cut the angle of the corrugated board by means of a cutter of a slot machine, wherein a corner cutter is used in the corner cutting. The prior grooving machine corner cutting knife comprises a knife holder fixed on a knife disc, a compression spring arranged on the knife holder and a knife blade arranged on the knife holder and abutted against one end of the compression spring, when a paperboard is cut, the knife blade extrudes the compression spring, so that soft contact is formed between rubber pads for supporting the paperboard, and abrasion of the rubber pads is reduced. It can be seen that there is a need for improvements and improvements in the art. Disclosure of Invention In view of the above-mentioned shortcomings of the prior art, the present invention aims to provide a corner cutter and a grooving machine using the corner cutter, which aim to solve the problem that the existing corner cutter is easy to damage. In order to achieve the above purpose, the invention adopts the following technical scheme: The utility model provides a corner cut sword, includes blade holder and first blade, be equipped with first pivot on the blade holder, rotate in the first pivot and be connected with the connecting block, first blade is fixed on a side of connecting block, and the length direction of first blade is acute angle or obtuse angle setting with the axis of first pivot, and the connecting block is equipped with the elastic pad in one side of keeping away from first blade, and the elastic pad is fixed on the blade holder. In the corner cutting knife, a second rotating shaft is arranged on the knife holder, an installation seat is rotationally connected to the second rotating shaft, the first rotating shaft is fixed to the installation seat, and the axis of the second rotating shaft is perpendicular to the axis of the first rotating shaft. In the corner cutting knife, a limiting block used for limiting the swinging range of the mounting seat is fixed on the knife holder. In the corner cutting knife, a locking nut for fixing the connecting block is connected to one end of the first rotating shaft far away from the mounting seat in a threaded manner. In the corner cutting knife, the knife holder is provided with a second blade, and the length direction of the second blade is perpendicular to the axis of the first rotating shaft. The corner cutting knife also comprises a fixing seat, the fixing seat is provided with a sliding groove, the knife holder is slidably connected to the sliding groove of the fixing seat, and a locking structure for locking the knife holder on the fixing seat is arranged on the knife holder. In the corner cutting knife, the locking structure comprises a telescopic piece fixed on the knife holder and a locking piece fixed at the telescopic end of the telescopic piece, and clamping grooves matched with the locking piece are formed in two sides of the sliding groove of the fixed seat. In the corner cutting knife, the telescopic piece comprises an outer sleeve, a compression spring and a telescopic rod, the telescopic rod penetrates through a central hole of the outer sleeve and is in sliding connection with the outer sleeve, the locking piece is fixed at one end of the telescopic rod, the telescopic rod is fixedly provided with a limiting rod at one end far away from the locking piece, the outer sleeve is provided with a convex ring at one end close to the locking piece, the compression spring is sleeved outside the outer sleeve, two ends of the telescopic rod are respectively abutted with the convex ring and the limiting rod, one end, far away from the convex ring, of the outer sleeve is provided with a guide groove, and the limiting rod penetrates through the guide groove and is abutted with the compression spring at the outer side of the outer sleeve. In the corner cutter, the blade holder includes mounting panel and fixed connection's clamp plate on the mounting panel, is equipped with first step through-hole on the mounting panel, and the overcoat is arranged in the first step through-hole, the bulge loop of overcoat and the step butt on the first step through-hole, the cross-section of the one end that the bulge loop was kept away from to the overcoat is non-circular form, is equipped with on the clamp plate and is non-circular form one end complex second step through-hole with the overcoat, mounting panel and fixing base sliding connection, the second blade is fixed on the clamp plate. In the corner cutting knife, the cross section of the chute is T-shaped,