KR200241413Y1 - Die set type shear machine - Google Patents

Abstract

The present invention relates to a die set type shearing machine, which not only secures the drawing space of the knife through the shearing side, but also replaces the fixed structure of the knife with a hydraulic type to facilitate the separation and mounting of the knife, thereby reducing the replacement time. In order to increase work stability and improve productivity,

The die set type shearing machine (3) is a roller post (63) through the feed roller (62) for placing the upper knife (40) on the flat guide rail (61) to the side of the base (30). The roller plate 64 for mounting the conveying roller 62 which seats the lower knife 40 'is disposed below the rear of the post 63 diagonally, and the guide roller 61 in which the roller plate 64 is interposed is provided with a guide roller ( It is further provided with a bent bracket (66) interposed at the tip, the guide rail (61) is provided with a knife replacement guide device 60 having a bent gate (67) hinged fixed to the edge, The die set 50 mounted through the main post 31 is provided with fixing blocks 51 for supporting upper and lower knives 40 and 40 'at both sides of side edges, and the upper and lower knives ( 40 and 40 'are coupled to the hydraulic cylinders 53 provided on the upper and lower sides of the die set 50. It features.

Description

Die set type shear machine

The present invention relates to a die set type shearing machine, and more particularly, to improving the structure of a shearing machine to easily fix and replace a knife interposed up and down to cut a hot rolled steel coil to a predetermined size.

In general, a shearing machine is an example of various machine tools required for plastic processing in which deformation is applied by applying external force to a material.

Plastic processing means that deformation occurs inside the material when an external force is applied to the material, and when the external force acts more than a certain range, even if the external force is removed, it does not completely return to its original shape and maintains the deformed shape.

Thus, the deformation of the material after the external force is removed is called plastic deformation, and this property is called plasticity.

Such plastic processing is divided into forging, rolling, drawing, extrusion, sheet metal, rolling, etc., depending on the working method,

According to the manufacturing process, it is divided into primary processing of rolling, drawing and extrusion, and secondary processing of forging and pressing.

As described above, the plastic working is to have a specific shape or shape through non-cutting processing that does not undergo a machining process,

Among them, the steel sheet formed to a certain thickness through the rolling process of the material produced by the steelmaking process is required to cut to a certain standard.

In order to cut the steel sheet as described above, the cutting operation is performed through a work line.

The shear work line is a steel plate supply unit for supplying at a constant rate after mounting the hot rolled steel sheet of a large coil form,

It is composed of a cutting portion for continuously cutting the supplied steel sheet to a predetermined standard, and a discharge portion for discharging and loading the cut steel sheet material to the outside of the shear work line.

The cut portion for directly cutting the coil-shaped steel sheet in the above rough shearing work line,

The cutting operation of the steel sheet is performed through the shearing machine 1 which is a dedicated machine tool as shown in FIGS. 1 and 2.

The shearing machine 1 is interposed between a box-shaped base 10 and a die set 20 mounted up and down spaced apart from the knife 11 and 12 required for cutting the steel sheet.

Outside the die set 20, the main post 13 is formed at the edge of the edge for a firm fixing and smooth operation during the reciprocating motion of the upper knife (11).

The shearing machine 1 as described above receives the steel sheet from the supply portion mounted on the coil-shaped steel sheet and flows into the upper and lower knife portions 11 and 12 of the die set 20.

The steel sheet (a) introduced is cut into a predetermined standard through the upper knife 11 which is reciprocated up and down by hydraulic pressure, and discharged.

As such, the knifes 11 and 12 which cut the steel plate directly in the shearing machine 1 continuously perform the cutting operation through friction under high pressure conditions with the steel plate, so that the performance of the knife 11 and 2 decreases due to wear. Resulted.

Thus, the shearing machine 1 should be replaced periodically with the worn knives 11 and 12, and the replacement cycle is usually performed more than twice a week.

In order to replace the worn knives (11, 12) as described above, after the operator climbs on the shearing machine base 10 in the direction that the steel sheet is supplied,

The bolts 11 and 12 are released from the die set 20 by releasing a plurality of bolts that hold the knifes 11 and 12 interposed above and below the die set 20, and then a new knife is removed from the die set 20. The replacement work was completed by reassembling the released bolts.

As described above, the replacement operation of the knife (11, 12) by the operator is put into the shearing machine (1) where the cutting operation is performed to perform the replacement operation,

There is a high risk of a safety accident and a loss of productivity due to delayed working hours.

In particular, the heavy knife (11, 12) is separated from the die set 20 and then transported to the outside by the operator to cause problems such as body damage due to the carelessness of the worker and fouling of the shearing machine (1). I was hugging.

Thus, the replacement of the knife (11, 12) attempted the replacement operation through the side, not the front of the shear (1),

As shown in FIG. 2, the knife 11 and 12 are replaced through the side of the shear 1 due to a defect in the mechanical structure in which the balance cylinder 21 for supporting the upper knife 11 is located on the side of the shear 1. Work is impossible.

As a result of the mechanical structure defects, the risk of work was taken and the replacement of the knife through the front of the shear was caused.

Therefore, the present invention has been devised to solve the above problems, and the structure of the fixed block and the balance cylinder interposed on the side of the shear is provided at both edges to secure the drawing space of the knife, as well as

Replace the fixing structure of the knife from the bolt fixing structure to the hydraulic fixing type through the cylinder, and further, by adding a separate knife replacement guide device for separating and mounting the knife, it is possible to reduce the replacement time, increase work stability and improve productivity. It is done.

1 is a front view showing a die set type shearer to which the prior art is applied;

2 is a side view of a die set type shearer to which the prior art is applied;

3 is a fragmentary side view showing a die set of a shearer to which the prior art is applied,

4 is a fragmentary front view of the die set type shearer of the present invention;

Figure 5 is a side cross-sectional view showing a knife replacement guide device of the present invention die set type shearing machine,

6 is a front view showing a die set applied to the die set type shearing machine of the present invention,

Figure 7 is a side view showing the die set of the present invention,

8 is a cross-sectional view taken along the line A-A of FIG.

9 is a partially broken perspective view showing a fastening structure of a knife applied to a die set type shearer according to the present invention;

10 is a partially enlarged view showing an upper knife mounting structure in the die set according to the present invention.

* Description of the symbols used in the main parts of the drawings *

3; die set type shearing machine 30; base

40, 40 '; Upper, lower knife 41; Knife holder

42; cylinder engaging groove 43; locking jaw

50; die 53; hydraulic cylinder

56; fixing groove 60; knife replacement guide device

61; guide rail 62; feed roller

63; roller post 64; roller plate

Hereinafter, the configuration and operation of the present invention will be described with reference to the accompanying drawings.

Figure 4 is a partially broken front view of the die set type shearer of the present invention, Figure 5 is a side cross-sectional view showing a knife replacement guide device of the die set type shearer of the present invention, Figure 6 is a die set type shearer of the present invention 7 is a side view showing the die set of the present invention, FIG. 8 is a cross-sectional view taken along line A-A of FIG. 6, and FIG. 9 is a knife applied to the die set type shearing machine of the present invention. A partially broken perspective view showing the fastening structure, FIG. 10 will be described together as part of an enlarged view showing the upper knife mounting structure in the die set according to the present invention.

Die set type shearing machine (3) for achieving the above object,

As shown in FIG. 4, the die set 50 on which the knife 40 separated from the upper and lower spaces above the box-shaped base 30 is mounted is interposed through the main post 31.

The side of the base 30 in which the die set 50 is interposed further includes a knife replacement guide device 60 for accommodating and taking out a knife 40 of weight during the replacement operation of the knife 40.

The knife replacement guide device 60,

As shown in FIGS. 4 and 5, a plurality of roller posts 63 are formed at equal intervals through the feed rollers 62 for pulling out the upper knife 40 by rolling the upper knife 40 on the flat guide rail 61. Become,

A roller plate 64 is mounted to the guide rail 61 to mount the transfer roller 62 for seating the lower knife 40 'below the diagonally rear surface of the roller post 63.

Such a knife replacement guide device 60 is a bending bracket having a guide roller 65 perturbing the side surface of the upper knife 40 on the side of the guide rail 61 on which the roller plate 64 is mounted. 66) to further ensure a stable withdrawal of the upper knife (40).

In addition, the knife replacement guide device 60 is the upper and lower knives (40, 40 ') placed in the transfer roller 62 to the tip opposite to the portion fixed to the base 30 of the shearing machine guide device 60 It has a bent gate 67 to prevent the departure from the rear,

The gate 67 is hinged and fixed to the knife replacement guide device 60 to facilitate the withdrawal together with the separation of the knife 40 and 40 '.

As described above, the knifes 40 and 40 'replaced by the knife replacement guide device 60 are as shown in FIGS. 5 and 9,

The knife 40, 40 'processed by the flat member and the knife holder 41 for mounting the knife 40, 40' outward to maintain the state of being fastened through the bolt, nut,

The knife holder 41 is a medium for fixing the knives 40 and 40 'to the die set 50, as shown in FIG. 9, and is fastened with the hydraulic cylinder 53 interposed in the die set 50 in an outer vertical plane. In order to provide a plurality of fastening grooves 42 forming the front shape '♀' shape at equal intervals.

The fastening groove 42 has a non-mechanical fastening structure by fitting the knife holder 41 and the cylinder 53, rather than mechanical fastening through the fixing mechanism.

In addition, the knife holder 41 for fixing the upper knife 40 is further provided with a locking jaw 43 with respect to the longitudinal direction of the knife 40 to both edges, such a locking jaw 43 is the upper knife holder 41 Form only) to facilitate the replacement of the knife (40).

The shearing machine 3 provided with the knife replacement guide apparatus 60 and the knife 40 and 40 'as mentioned above,

In order to replace the knife 40, 40 'through the side of the die set 50, as shown in Figs. 6 and 7, the fixing block 51 supporting the die set 50 is boxed, and the drawing space ( 52),

In order to simplify the fixing structure and replacement of the knives 40 and 40 ', as shown in FIGS. 8 and 10, the channel-type fixing housing the catching jaw 43 of the upper knife holder 41 above the die set 50 is shown. Forming a groove 56,

Above the fixing groove 56, a plurality of electromagnets 57 are formed to fix the upper knife 40 accommodated by magnetic force at equal intervals with respect to the full length of the die set 50.

Referring to the operation state of the present invention as described above compared with the problems of the prior art as follows.

The die set type shearer 30 of the present invention is designed to replace a knife 40, 40 'worn out due to a continuous cutting operation.

First, the rod 54 of the hydraulic cylinder 53 which is interposed above and below the die set 50 to fix the knife 40 and 40 'is released to release the fixed state of the knife 40 and 40'.

At the same time, the upper knife 40 is interposed above the upper knife 40 and cuts off the power supply of the electromagnet 57 to bring the knife 40 into close contact with the die set 50 through the electromagnetic force. Make it possible.

When the upper knife 40 is released from the die set 50 as described above, the operator lifts the upper knife 40 mounted by the locking jaw 43 and the fixing groove 56 of the knife holder 41. ,

After removing the shear 3 through the die set 50 side, it is placed on the feed roller 62 of the knife replacement guide device 60,

Subsequently, the lower knife 40 'is supported on the working surface 58 under the die set 50, and is removed to the outside of the shearer 3 through the die set 50 side to guide the knife replacement as the upper knife 40. It is settled in the feed roller 62 interposed in the apparatus 60.

Knife (40, 40 ') removed as described above is replaced with a new knife is fixed to the die set 50,

To this end, after placing a new knife 40, 40 'in the feed roller 62 of the knife replacement guide device 60, the worker supports the lower knife 40' on the working surface 58 and flows into the shearing machine. Let

The hydraulic cylinder 53 interposed below the die set 50 and the fastening groove 42 formed in the knife holder 41 are brought into close proximity to each other.

As described above, when the lower knife 40 'is close to the hydraulic cylinder 53 and the fastening groove 42 and the hydraulic cylinder rod 54 coincide with each other, the rod 54 is relaxed to be inserted into the fastening groove 42. To maintain the assembled state.

As described above, in the temporarily assembled state of the lower knife 40 'and the hydraulic cylinder 53, the operator moves the lower knife 40' in close contact with the inside of the shearing machine 3, so that the hydraulic cylinder rod 54 is fastened to the fastening groove 42. ) Fully inserted into the room,

In the fully inserted state of the hydraulic cylinder 53, the hydraulic cylinder rod 54 is contracted so that the lower knife 40 'is firmly fixed.

As such, when the replacement of the lower knife 40 'is completed, the replacement operation of the upper knife 40 is made.

This flows the upper knife 40 ′ settled in the knife replacement guide device 60 into the die set 50 through the side of the shearer 3, and the introduced upper knife 40 is placed on both sides of the knife holder 41. The locking jaw 43 formed in the seat is inserted into the fixing groove 56 in the upper portion of the die set 50 to be mounted.

As described above, the operator continuously introduces the upper knife 40 mounted on the die set 50 so that the hydraulic cylinder 53 and the upper knife 40 like the lower knife 40 'maintain the temporarily assembled state. .

At this time, the fixing groove 56 and the upper knife 40 of the die set 50 is formed with a gap (G) of a predetermined size due to the assembly tolerance,

The gap G acted as a cause of vibration of the die set 50 and deterioration of durability of the entire shearer 3 during the cutting operation of the upper and lower knives 40 and 40 '.

Thus, power is supplied to the electromagnet 57 interposed above the fixing groove 56 in the temporarily assembled state of the upper knife 40 and the hydraulic cylinder 53 so as to be in close contact with the upper surface of the fixing groove 56 as an electromagnetic force (G). Remove it.

As described above, in the state where the upper knife 40 is in close contact with the upper surface of the fixing groove 56, the hydraulic cylinder rod 54 is contracted so that the upper knife 40 is firmly fixed to the die set 50.

In order to remove or mount the knife from the die set 50 during the replacement of the worn knives 40 and 40 ',

Since only the hydraulic cylinder 53 for fixing it is to be removed from the fastening groove 42 of the knife 40, 40, the removal time from the die set 50 is significantly reduced.

This is because the conventional knife is interposed through dozens of bolts in the die set, in order to replace it, the operator removes the entire bolt and then removes the knife.

Even when mounting, it is necessary to reassemble all released bolts, which can solve the disadvantage of poor workability due to excessive disassembly and mounting time.

In addition, by drawing the replacement direction of the knife 40, 40 'through the side of the die set 50 orthogonal to the supply direction of the steel sheet,

A conventional worker may be introduced into the shearing machine to remove a worn knife and prevent safety accidents caused during replacement work.

As described above, the die set type shearing machine of the present invention replaces the fixing of the knife from the bolt fixing type to the hydraulic fixing type through the hydraulic mechanism, so that it is easy to fix and separate, thereby reducing the overall replacement time of the knife. Can prevent degradation,

It is a useful design that can contribute to increase safety and improve working environment by preventing the safety accident by performing the replacement work without direct input into the shearing machine by performing the drawing direction on the die set side when replacing the knife. .

Claims (3)

In the die set type shearing machine, in which a die set 50 mounted with a knife 40 separated up and down spaced above a base 30 having a box shape in its entirety is interposed through a main post 31; The die set type shearing machine (3), Knife replacement guide device 60 for facilitating storage and withdrawal when replacing the knife 40, 40 ', and die set 50 for fixing the knife 940, 40', The knife replacement guide device 60, A roller post 63 having a feed roller 62 for placing the upper knife 40 on the guide rail 61 at equal intervals, The roller plate 64 is fixed to the guide rail 61 by mounting a conveying roller 62 that holds the lower knife 40 'under the diagonally rear surface of the roller post 63, On one side of the guide rail 61, a bending bracket 66 having a guide roller 65 perturbed with the side surface of the upper knife 40 at its tip, and The guide rail 61 includes a bent gate 67 hinged to the edge of the edge, The die set 50, Supported by a box-shaped fixing block 51 having a drawing space 52 in the center, Fixing groove 56 having a plurality of electromagnets 57 at equal intervals to accommodate the upper knife 40, and Die set type shearing machine comprising a plurality of hydraulic cylinders (53) for fixing the upper and lower knives (40, 40 '). The method of claim 1; The upper and lower knives 40 and 40 ', Knives 40 and 40 'processed by flat plate members, Die set type shearing machine, characterized in that consisting of a knife holder 41 for fixing the knife (40, 40 ') by forming a plurality of' ♀'-type fastening grooves 42 at equal intervals on the outer vertical surface. The method of claim 2; The knife holder 41, Die set type shearing machine, characterized in that the locking jaw (43) corresponding to the fixing groove (56) of the die set (50) further formed on the upper side.