CN220805629U

CN220805629U - Lifting steel belt scissors

Info

Publication number: CN220805629U
Application number: CN202322502695.0U
Authority: CN
Inventors: 罗侃
Original assignee: Bichamp Cutting Technology Hunan Co Ltd
Current assignee: Bichamp Cutting Technology Hunan Co Ltd
Priority date: 2023-09-14
Filing date: 2023-09-14
Publication date: 2024-04-19
Anticipated expiration: 2033-09-14

Abstract

The utility model discloses lifting steel belt scissors, which comprise a frame body, wherein a knife rest is movably arranged on the frame body; a lifting device for driving the tool rest to lift is arranged in the frame body; the top of the tool rest is provided with scissors; a driving device for driving the scissors to open and close is arranged in the knife rest; the scissors comprise a movable blade and a fixed blade; the driving device is arranged on one side of the movable blade and is in sliding connection with the movable blade; and a guide mechanism for calibrating the position of the steel belt is arranged above the tool rest. The utility model has simple structure, low cost compared with the hand-held scissors, no need of consuming manpower and higher precision of shearing.

Description

Lifting steel belt scissors

Technical Field

The utility model relates to lifting steel belt scissors, and belongs to the technical field of steel belt cutting.

Background

At present, in the steel belt production industry, such as saw belt production, the steel belt is cut into rolls with required length due to technological requirements, and at present, the industry mainly adopts an imported hand-held pneumatic scissors cutting method. However, the hand-held pneumatic scissors in the steel belt field are completely dependent on import, are high in price and are difficult to maintain. In addition, because the hand-held pneumatic scissors consider the problem of hand-held weight, the design shearing force is insufficient, and the phenomenon that the hand-held pneumatic scissors can be sheared or sheared continuously at all is frequently needed to be sheared for several times when the broadband is sheared, the time is delayed, and the production efficiency is low.

When the hand-held scissors are sheared, the shearing position is required to be confirmed manually and visually, the hand-held scissors cannot be accurately fixed at the same position, and the precision of the length of the split can not be ensured.

In addition, the fixed pneumatic scissors in the field of steel belts are horizontally arranged, generally only have shearing action, have no lifting function and cannot use the arrangement and shearing of the stock preparation fixed-length working procedure.

Disclosure of utility model

The utility model aims to provide lifting steel belt scissors so as to solve the problems of time and labor waste and low accuracy in manual steel belt cutting.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The lifting steel belt scissors comprise a frame body, wherein a knife rest is movably arranged on the frame body; a lifting device for driving the tool rest to lift is arranged in the frame body; the top of the tool rest is provided with scissors; a driving device for driving the scissors to open and close is arranged in the knife rest; the scissors comprise a movable blade and a fixed blade; the driving device is arranged on one side of the movable blade and is in sliding connection with the movable blade; and a guide mechanism for calibrating the position of the steel belt is arranged above the tool rest.

Therefore, the lifting steel belt scissors are in a retracted low-position state when in a non-working state, when cutting is needed, the lifting device pushes the knife rest to lift, so that the steel belt is positioned in the knife edge of the scissors at the top of the knife rest, and then the driving device is started to drive the movable blade to move towards the fixed blade so as to cut the steel belt.

According to the embodiment of the utility model, the utility model can be further optimized, and the following technical scheme is formed after the optimization:

Specifically, a first cutter holder for placing a movable blade is arranged at the top of the cutter holder, and a second cutter holder for placing a fixed blade is arranged at one side of the first cutter holder; a sliding block is arranged in the first tool apron, the movable blade is detachably connected with the sliding block, and the driving device is in sliding connection with the sliding block; the bottom of the second tool apron is provided with a positioning block. Under the action of the positioning block, the bottom side of the steel belt falls to the same reference position of the scissor opening every time, so that the whole width of the steel belt is ensured to be in the range of an effective shearing edge.

In order to facilitate pushing the movable blade, the driving device comprises a cylinder vertically arranged in the tool rest, and a wedge block is arranged at the telescopic end of the cylinder; the inclined surface of the wedge block faces the sliding block; and a chute for the wedge-shaped block to move up and down is formed in the first tool apron.

In order to reduce friction between the wedge block and the sliding block and between the sliding groove, specifically, one side of the sliding block, which faces the wedge block, is provided with a pulley which contacts with an inclined surface of the wedge block, and the side wall of the sliding groove, which faces the wedge block, is provided with a pulley which contacts with a vertical surface of the wedge block.

Specifically, a mounting groove is formed in the sliding block along the length direction of the sliding block; a rebound mechanism is arranged on the sliding block; the rebound mechanism comprises a fixed block fixedly connected with the side wall of the first tool apron, and the rear side of the fixed block is fixedly connected with an elastic piece placed in the mounting groove. Under the action of the rebound mechanism, the knife edge of the scissors can be opened rapidly.

Specifically, elevating gear is including setting up the lift cylinder of support body bottom, the flexible end of lift cylinder with knife rest fixed connection, the bottom of knife rest is provided with the guide bar.

Specifically, a sliding rail is arranged on the side wall of the frame body, and a sliding block matched with the sliding rail is arranged on the tool rest.

Specifically, guiding mechanisms are arranged in the feeding direction and the discharging direction of the frame body, and each guiding mechanism comprises a plurality of groups of guiding wheel rollers.

Compared with the prior art, the utility model has the beneficial effects that:

1) The pneumatic scissors can be lifted in the vertical direction, and are suitable for shearing of the coiled material in the vertical state of the steel belt during coiling, and the shearing does not influence the operation of the plate belt above the scissors.

2) The utility model has simple structure, low cost compared with the hand-held scissors, no need of consuming manpower and higher precision of shearing.

3) The pneumatic scissors solve the problems that the pneumatic scissors depend on foreign import and are high in price at present, and meanwhile solve the problem that the conventional handheld pneumatic scissors are not strong enough to cut when the broadband is cut.

4) The pneumatic scissors solve the problem that the structure of the existing fixed pneumatic scissors cannot be used for arranging the stock fixed-length lines.

Drawings

FIG. 1 is a schematic side view (with partial cutaway) of the present utility model;

FIG. 2 is a schematic rear view of the present utility model;

FIG. 3 is a partial cross-sectional view of the scissors of the present utility model;

fig. 4 is a schematic view of the working state of the present utility model.

In the drawings

1-A frame body; 11-a slide rail; 12-dovetail block; 2-a knife rest; 21-scissors; 211-movable blades; 212-fixed blade; 22-a first tool holder; 221-a slider; 221 a-a mounting groove; 222-a chute; 23-a second tool holder; 231-positioning blocks; 24-a guide rod; 3-lifting device; 4-a driving device; 41-cylinder; 42-wedge blocks; 43-pulley; 5-a guiding mechanism; 6-a rebound mechanism; 61-a fixed block; 62-elastic member.

Detailed Description

The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.

As shown in fig. 1 to 4, the lifting steel belt scissors of the embodiment comprise a frame body 1, wherein a knife rest 2 is movably arranged on the frame body 1; a lifting device 3 for driving the tool rest 2 to lift is arranged in the frame body 1; the lifting device 3 comprises a lifting cylinder arranged at the bottom of the frame body 1, and the telescopic end of the lifting cylinder is fixedly connected with the tool rest 2. In order to make the lifting process of the tool rest 2 more stable, a guide rod 24 is arranged at the bottom of the tool rest 2, a sliding rail 11 is arranged on the side wall of the tool rest body 1, and a dovetail block 12 matched with the sliding rail 11 is arranged on the tool rest 2.

The lifting cylinder installed on one side of the tool rest 2 is eccentrically arranged, a piston rod of the lifting cylinder is connected with the tool rest 2, the tool rest 2 is connected with the frame body 1 through the guide rod 24, when the lifting cylinder stretches and contracts, the tool rest 2 is lifted, the scissors default in a low-level state when in a non-working state, the steel belt is not influenced to run on the upper surface, the guiding mechanisms 5 are arranged on the front and the rear of the scissors, the guiding mechanisms 5 are arranged on the feeding direction and the discharging direction of the frame body 1, the guiding mechanisms 5 comprise a plurality of groups of guiding wheel rollers, and the steel belt is ensured to be right opposite to the edge position of the scissors when passing through the upper surface of the scissors.

The top of the blade holder 2 is provided with a scissors 21, the scissors 21 comprising a movable blade 211 and a fixed blade 212. The fixed blade 212 is fastened on the second blade holder 23, the second blade holder 23 is fixed on the blade holder 2, the mounting hole of the blade holder 2 is provided with a waist-shaped hole, the gap between the fixed blade 212 and the movable blade 211 can be adjusted to a proper state, the gap can be kept to be minimum, the best shearing effect can be achieved, in addition, the blade holder 2 and the second blade holder 23 are connected by adopting flat keys, and the shearing performance is not influenced by dislocation displacement under the action of counter force during shearing.

A driving device 4 for driving the scissors 21 to open and close is arranged in the knife rest 2; the top of the knife rest 2 is provided with a first knife rest 22 for placing a movable blade 211, and one side of the first knife rest 22 is provided with a second knife rest 23 for placing a fixed blade 212; a slider 221 is disposed in the first seat 22 for easy replacement of the movable blade. The movable blade 211 is detachably connected with the sliding block 221, and the driving device 4 is slidably connected with the sliding block 221; the bottom of the second tool apron 23 is provided with a positioning block 231. Under the action of the positioning block 231, the bottom side of the steel belt falls to the same reference position of the scissor opening each time, so that the whole width of the steel belt is ensured to be in the range of an effective shearing edge.

The driving device 4 comprises a cylinder 41 vertically arranged in the tool rest 2, and a wedge block 42 is arranged on the telescopic end of the cylinder 41; the inclined surface of the wedge block 42 faces the slider 221; the first tool holder 22 is provided with a chute 222 for the wedge-shaped block 42 to move up and down. The side of the sliding block 221 facing the wedge block 42 is provided with a pulley 43 contacting with the inclined surface of the wedge block 42, and the side wall of the sliding groove 222 facing the wedge block 42 is provided with a pulley 43 contacting with the vertical surface of the wedge block 42.

As shown in fig. 3, the wedge-shaped block 42 is pushed by the air cylinder 41 to lift in the chute 222, and the inclined surface portion of the wedge-shaped block 42 abuts against the pulley 43 on the sliding block 221 to push the movable blade 211 on the sliding block 221 to move towards the fixed blade 212, so that the shearing of the steel strip is completed.

In order to facilitate the quick opening of the scissors 21, the slider 221 is provided with a rebound mechanism 6; the rebound mechanism 6 comprises a fixed block 61 fixedly connected with the side wall of the first tool apron 22, a mounting groove 221a is formed in the sliding block 221 along the length direction of the sliding block 221, and an elastic piece 62 placed in the mounting groove 221a is fixedly connected with the rear side of the fixed block 61. The elastic piece 62 selects a spring, when the sliding block is before shearing, the spring is compressed to store the elastic force, after shearing is completed, the movable blade 211 quickly retreats, and the sliding block is returned to the state of the knife edge opening by the elastic force.

The two sides of the wedge-shaped block 42 are guided by the pulleys 43, and the sliding block 221 is guided by the bosses, so that the sliding resistance of the sliding block 221 is greatly reduced, the cutting is flexible and crisp, the sliding plate 38 is provided with the long hole for placing the elastic piece 62, and the sliding block 221 is ensured to quickly and automatically rebound after the cutting is completed.

As shown in fig. 4, after each coil separation is completed, when the steel belt needs to be sheared, the lifting cylinder automatically rises in place, and under the action of the positioning block 231, the bottom side of the steel belt falls to the same reference position of the shear opening each time, so that the whole width of the steel belt is ensured to be in the range of an effective shearing edge. After the positioning is finished, the air cylinder 41 is started to push the wedge block 42 at the front end of the piston rod to further push the sliding block 221 to move forward, the steel belt is sheared instantly, the air cylinder 41 is started to retract, the sliding block 221 is synchronously returned under the action of elastic force, the knife edge returns to an opening state, the lifting air cylinder is retracted, the scissors return to a low-position state, and the next steel belt separating running state is entered.

The pneumatic scissors can be lifted in the vertical direction, and the shearing of the steel belt in the vertical state is suitable for the coil stock during the coil separation and does not influence the operation of the plate belt above the scissors; the pair of scissors is simple in structure, low in manufacturing cost and good in practical effect compared with the pair of hand-held scissors. The embodiment has been used normally in production for one year, and the operation convenience, the automation degree and the production efficiency are all verified.

The foregoing examples are set forth in order to provide a more thorough description of the present utility model and are not intended to limit the scope of the utility model, and various modifications of the utility model, which are equivalent to those skilled in the art upon reading the present utility model, will fall within the scope of the utility model as defined in the appended claims.

Claims

1. Lifting steel belt scissors comprise a frame body (1), and are characterized in that: a tool rest (2) is movably arranged on the frame body (1); a lifting device (3) for driving the tool rest (2) to lift is arranged in the frame body (1); a scissors (21) is arranged at the top of the knife rest (2); a driving device (4) for driving the scissors (21) to open and close is arranged in the knife rest (2); the scissors (21) comprise a movable blade (211) and a fixed blade (212); the driving device (4) is arranged on one side of the movable blade (211) and is in sliding connection with the movable blade (211); a guide mechanism (5) for calibrating the position of the steel belt is arranged above the tool rest (2).

2. The lifting steel band shears of claim 1, wherein: a first cutter holder (22) for placing a movable blade (211) is arranged at the top of the cutter holder (2), and a second cutter holder (23) for placing a fixed blade (212) is arranged at one side of the first cutter holder (22); a sliding block (221) is arranged in the first tool apron (22), the movable blade (211) is detachably connected with the sliding block (221), and the driving device (4) is in sliding connection with the sliding block (221); the bottom of the second tool apron (23) is provided with a positioning block (231).

3. The lifting steel band shears of claim 2, wherein: the driving device (4) comprises a cylinder (41) vertically arranged in the tool rest (2), and a wedge block (42) is arranged at the telescopic end of the cylinder (41); the inclined surface of the wedge-shaped block (42) faces the sliding block (221); a chute (222) for the wedge-shaped block (42) to move up and down is formed in the first tool apron (22).

4. The lifting steel band shears of claim 3, wherein: one side of the sliding block (221) facing the wedge block (42) is provided with a pulley (43) contacting with an inclined surface of the wedge block (42), and the side wall of the sliding groove (222) facing the wedge block (42) is provided with a pulley (43) contacting with a vertical surface of the wedge block (42).

5. The lifting steel band shears of claim 2, wherein: the sliding block (221) is provided with a mounting groove (221 a) along the length direction of the sliding block (221); a rebound mechanism (6) is arranged on the sliding block (221); the rebound mechanism (6) comprises a fixed block (61) fixedly connected with the side wall of the first tool apron (22), and an elastic piece (62) placed in the mounting groove (221 a) is fixedly connected with the rear side of the fixed block (61).

6. The lifting steel band shears of any one of claims 1-5, wherein: the lifting device (3) is a lifting cylinder arranged at the bottom of the frame body (1), the telescopic end of the lifting cylinder is fixedly connected with the tool rest (2), and a guide rod (24) is arranged at the bottom of the tool rest (2).

7. The lifting steel band shears of any one of claims 1-5, wherein: the side wall of the frame body (1) is provided with a sliding rail (11), and the tool rest (2) is provided with a dovetail block (12) matched with the sliding rail (11).

8. The lifting steel band shears of any one of claims 1-5, wherein: the feeding direction and the discharging direction of the frame body (1) are both provided with guide mechanisms (5), and the guide mechanisms (5) comprise a plurality of groups of guide wheel rollers.