CN112247236A

CN112247236A - Lower cutter mechanism for flat-bed machine shearing plate

Info

Publication number: CN112247236A
Application number: CN202011088706.XA
Authority: CN
Inventors: 李院花
Original assignee: Hangzhou Youcai Network Technology Co ltd
Current assignee: Hangzhou Youcai Network Technology Co ltd
Priority date: 2020-10-13
Filing date: 2020-10-13
Publication date: 2021-01-22

Abstract

The invention relates to the technical field of sheet metal machining, and discloses a lower cutter mechanism for a flat shearing machine, which comprises a portal frame, wherein an extrusion table is arranged in the middle of the portal frame, a steel plate is arranged in the middle of the extrusion table, a transverse plate is fixedly connected to the upper end of the portal frame, an installation seat is fixedly connected to the upper surface of the transverse plate, lifting mechanisms are arranged on two sides, close to the portal frame, in the installation seat, half gears are arranged inside the lifting mechanisms, outer gear rings are arranged outside the half gears, connecting rods are fixedly connected to the lower ends of the outer gear rings, buffers are sleeved outside the upper ends of the connecting rods, driving shafts are coupled to the centers of the two half gears, and cutter holders are movably connected to. This a lower sword mechanism for opening flat-bed machine cut board rotates the both sides that drive the outer ring gear of the periodic meshing of half gear through the drive shaft, has realized reciprocating from top to bottom of outer ring gear through mechanical rotation, drives through the connecting rod then and shears the sword reciprocating from top to bottom, and the cutting steel sheet compares traditional hydraulic pressure and goes up and down, and speed is faster.

Description

Lower cutter mechanism for flat-bed machine shearing plate

Technical Field

The invention relates to the technical field of sheet metal processing, in particular to a lower cutter mechanism for a plate shearing of a decoiler.

Background

The uncoiling machine is equipment integrating flattening and plate shearing of strip steel, and mainly shears coiled strip steel into strips after stress is eliminated, but in the existing plate shearing process, a lower cutter is mainly completed through a hydraulic mechanism, hydraulic expansion can improve enough power, but when the reciprocating stroke of the lower cutter is completed, the power consumption is large, the speed is low, the continuous working life is short, and when the plate shearing machine works under high load, the expansion rod is deformed due to transverse shearing stress, so that the maintenance and repair of the hydraulic lower cutter mechanism are very frequent, time-consuming and labor-consuming.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the lower cutter mechanism for the plate shearing of the decoiler, which has the advantages of higher reciprocating lower cutter speed, higher efficiency and longer service life, and solves the problems of low efficiency and short service life of the existing hydraulic lower cutter.

(II) technical scheme

In order to achieve the purposes of higher cutting speed, higher efficiency and longer service life, the invention provides the following technical scheme: a lower cutter mechanism for a plate shearing machine of a decoiler comprises a portal frame, wherein an extrusion table is arranged in the middle of the portal frame, a steel plate is arranged in the middle of the extrusion table, a transverse plate is fixedly connected at the upper end of the portal frame, a mounting seat is fixedly connected on the upper surface of the transverse plate, two sides of the mounting seat close to the portal frame are provided with lifting mechanisms, the lifting mechanisms are internally provided with half gears, an outer gear ring is arranged outside the half gear, the lower end of the outer gear ring is fixedly connected with a connecting rod, a buffer is sleeved outside the upper end of the connecting rod, the centers of the two half gears are coupled with a driving shaft, the lower end of the connecting rod is movably connected with a tool apron, a shearing tool is arranged in the tool apron, one side of the portal frame close to the tool apron is provided with a spring ball, one side of the cutter holder, which is far away from the spring ball, is provided with an extrusion wheel, and one side of the extrusion wheel, which is far away from the cutter holder, is movably connected with a push rod.

Preferably, a gap for a steel plate to pass through is reserved in the middle of the extrusion table, a leveling roller for delivering and leveling the steel plate is arranged on the left side, and a storage device which does not interfere with a lower cutter is arranged on the right side.

Preferably, a bracket for fixing the lifting mechanism and the gearbox is arranged in the mounting seat.

Preferably, the outer ring gear is a bar-shaped structure with a rack inside, a chute for the rack to move up and down is formed in the mounting seat, and the inner teeth of the chute are matched with the half gear.

Preferably, the buffer is fixedly connected with the lower end of the outer gear ring, sleeved outside the connecting rod and provided with a certain gap, and the buffer is contacted with the transverse plate before descending to the limit stroke along with the outer gear ring.

Preferably, a groove channel is arranged at the position, opposite to the extrusion wheel, of the tool apron, and a slide way is arranged at the position, opposite to the spring ball, of the tool apron.

(III) advantageous effects

Compared with the prior art, the invention provides a lower cutter mechanism for a plate shearing of a decoiler, which has the following beneficial effects:

1. this a lower sword mechanism for opening flat-bed machine cut board rotates the both sides that drive the outer ring gear of the periodic meshing of half gear through the drive shaft, has realized reciprocating from top to bottom of outer ring gear through mechanical rotation, drives through the connecting rod then and shears the sword reciprocating from top to bottom, and the cutting steel sheet compares traditional hydraulic pressure and goes up and down, and speed is faster.

2. This a lower sword mechanism for opening flat-bed machine cut board, it makes it sticiss the blade holder to push away the pinch roller through the push rod and last left side, makes it hug closely the spring ball, guarantees that it does not take place horizontal skew in vertical stroke, when taking place horizontal vibration, effectively protects and cuts sword core position, improves device life.

Drawings

FIG. 1 is a schematic view of the structure of the mounting body of the present invention;

FIG. 2 is a schematic view of the lower blade structure of the present invention;

FIG. 3 is a schematic side view of the lift mechanism of the present invention;

FIG. 4 is a schematic view of the lifting structure of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 1 according to the present invention.

In the figure: 1. a gantry; 2. an extrusion table; 3. a steel plate; 4. a transverse plate; 5. a mounting seat; 6. a lifting mechanism; 61. a half gear; 62. an outer ring gear; 63. a connecting rod; 64. a buffer; 7. a drive shaft; 8. a tool apron; 9. a shearing knife; 10. a spring ball; 11. an extrusion wheel; 12. a push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a lower knife mechanism for opening a flat-bed plate includes a portal frame 1, an extrusion table 2 is disposed in the middle of the portal frame 1, a steel plate 3 is disposed in the middle of the extrusion table 2, a gap for the steel plate 3 to pass through is reserved in the middle of the extrusion table 2, a leveling roller for delivering and leveling the steel plate 3 is disposed on the left side, a receiving device for non-interference lower knife is disposed on the right side, a transverse plate 4 is fixedly connected to the upper end of the portal frame 1, a mounting base 5 is fixedly connected to the upper surface of the transverse plate 4, lifting mechanisms 6 are disposed in the mounting base 5 and close to the two sides of the portal frame 1, a bracket for fixing the lifting mechanisms 6 and a gear box is disposed in the mounting base 5, a half gear 61 is disposed in the lifting mechanism 6, an outer ring gear 62 is disposed outside the half gear 61, the outer ring 62 is a bar structure with a rack disposed, its internal tooth cooperatees with semi-gear 61, the lower extreme fixedly connected with connecting rod 63 of outer ring gear 62, buffer 64 has been cup jointed to the outside of connecting rod 63 upper end, buffer 64 and the lower extreme fixed connection of outer ring gear 62, cup joint in the connecting rod 63 outside and leave certain space, it follows outer ring gear 62 and descends to before the limit stroke and contacts with diaphragm 4, the center coupling of two semi-gear 61 has drive shaft 7, the lower extreme swing joint of connecting rod 63 has blade holder 8, be provided with shearing sword 9 in the blade holder 8, one side that portal frame 1 is close to blade holder 8 is provided with spring ball 10, one side that spring ball 10 was kept away from to blade holder 8 is provided with extrusion wheel 11, blade holder 8 is just being provided with the channel to the position of extrusion wheel 11, just be provided with the slide to the position of spring ball 10, one side swing joint that.

The working principle is as follows: this a lower sword mechanism for opening flat-bed machine cut board sets up the rack through the inside both sides of outer ring gear 62, and its internal tooth cooperatees with semi-gear 61, and drive shaft 7 rotates the both sides that drive semi-gear 61 periodic meshing outer ring gear 62, and is reciprocal from top to bottom through mechanical rotation realization outer ring gear 62, then drives through connecting rod 63 and shears sword 9 and reciprocates from top to bottom, and cutting steel sheet 3 compares hydraulic pressure and goes up and down, and speed is faster. When the tool apron 8 goes up and down, the push rod 12 continuously pushes the extrusion wheel 11 on the left to enable the extrusion wheel to tightly press the tool apron 8, so that the extrusion wheel is tightly attached to the spring ball 10, horizontal deviation of the extrusion wheel in the vertical stroke is avoided, when horizontal vibration occurs, the core position of the shearing tool 9 is effectively protected, vibration damage is reduced under the extrusion of the spring ball 10, and the service life of the device is prolonged.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a lower sword mechanism for opening flat-bed machine cut board, includes portal frame (1), its characterized in that: the middle of the portal frame (1) is provided with an extrusion table (2), a steel plate (3) is arranged in the middle of the extrusion table (2), a transverse plate (4) is fixedly connected to the upper end of the portal frame (1), an installation seat (5) is fixedly connected to the upper surface of the transverse plate (4), lifting mechanisms (6) are arranged on two sides, close to the portal frame (1), in the installation seat (5), a half gear (61) is arranged inside the lifting mechanisms (6), an outer gear ring (62) is arranged outside the half gear (61), a connecting rod (63) is fixedly connected to the lower end of the outer gear ring (62), a buffer (64) is sleeved outside the upper end of the connecting rod (63), a driving shaft (7) is coupled to the centers of the two half gears (61), a cutter holder (8) is movably connected to the lower end of the connecting rod (63), and a shearing cutter (9) is arranged in the cutter holder (, spring balls (10) are arranged on one side, close to the tool apron (8), of the portal frame (1), an extrusion wheel (11) is arranged on one side, far away from the spring balls (10), of the tool apron (8), and a push rod (12) is movably connected to one side, far away from the tool apron (8), of the extrusion wheel (11).

2. The lower blade mechanism for a shearer plate of a decoiler according to claim 1, wherein: a gap for the steel plate (3) to pass through is reserved in the middle of the extrusion table (2), a leveling roller for delivering and leveling the steel plate (3) is arranged on the left side, and a storage device which does not interfere with a lower cutter is arranged on the right side.

3. The lower blade mechanism for a shearer plate of a decoiler according to claim 1, wherein: and a bracket for fixing the lifting mechanism (6) and the gear box is arranged in the mounting seat (5).

4. The lower blade mechanism for a shearer plate of a decoiler according to claim 1, wherein: the outer ring gear (62) is a bar-shaped structure with a rack arranged inside, a sliding groove for the outer ring gear to move up and down is formed in the mounting seat (5), and the inner teeth of the outer ring gear are matched with the half gear (61).

5. The lower blade mechanism for a shearer plate of a decoiler according to claim 1, wherein: the buffer (64) is fixedly connected with the lower end of the outer gear ring (62), is sleeved outside the connecting rod (63) and is in contact with the transverse plate (4) before descending to the limit stroke along with the outer gear ring (62) and a certain gap is reserved.

6. The lower blade mechanism for a shearer plate of a decoiler according to claim 1, wherein: and a groove channel is arranged at the position of the cutter holder (8) opposite to the extrusion wheel (11), and a slide way is arranged at the position of the cutter holder opposite to the spring ball (10).