CN215098505U

CN215098505U - Bar falling steel machine buffer device

Info

Publication number: CN215098505U
Application number: CN202120566837.8U
Authority: CN
Inventors: 聂志水; 刘洋; 任鹏飞; 袁晨雨; 耿梅雁; 齐慧娟; 焦卫京; 温齐阔
Original assignee: Shijiazhuang Iron and Steel Co Ltd
Current assignee: Shijiazhuang Iron and Steel Co Ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-12-10
Anticipated expiration: 2031-03-19

Abstract

The utility model relates to a rod steel falling machine buffer belongs to the small-size rod steel rolling finishing technical field of metallurgical industry. The technical scheme is as follows: a pair of holding fingers are arranged in the U-shaped collecting groove (26) and positioned at the upper part of the U-shaped collecting groove (26): the device comprises a left holding finger (6) and a right holding finger (7), wherein the left holding finger (6) and the right holding finger (7) are in strip shapes, one ends of the left holding finger (6) and the right holding finger (7) are respectively and rotatably connected to two corresponding side walls of a U-shaped collecting groove (26), and the other ends of the left holding finger (6) and the right holding finger (7) are respectively connected with a piston rod of a holding finger driving cylinder (9). The utility model has the advantages that: the fall of the bars is reduced, and the problems of poor bending degree, bump damage and the like caused by bar crossing and winding in the collecting process of the bars are prevented.

Description

Bar falling steel machine buffer device

Technical Field

The utility model relates to a rod steel falling machine buffer belongs to the small-size rod steel rolling finishing technical field of metallurgical industry.

Background

The steel falling machine is equipment for collecting the cut-to-length bars after the cut-to-length bars are cut by the cut-to-length shears used in small bar steel rolling factories. According to the corresponding weight, the rods with a certain number are collected and bundled into one piece through calculation, so that the storage and the transportation are convenient.

Referring to the attached drawing 1, the existing steel falling machine mainly comprises a transmission shaft, a transmission gear, a material supporting arm, a chain, a transmission belt, a transmission motor and a driven sprocket, wherein the transmission motor is in driving connection with the transmission gear through the transmission belt, the transmission gear is located on the upper side of a U-shaped collecting tank, the driven sprocket is located on the lower side of the U-shaped collecting tank, the transmission gear is in driving connection with the driven sprocket through the chain, the length of the material supporting arm is matched with the groove width of the U-shaped collecting tank, and one end of the material supporting arm is fixed on the chain. The rod passes through chain conveyor and carries directly on falling to the support arm after the end, then falls on the rollgang of collecting vat bottom again, and this kind of steel falling owner has following problem:

(1) the fall is large, the rods are not parallel due to impact and other reasons before and in the falling process, namely the rods are crossed and wound, the diameter specification is smaller and more obvious, if the rods are bundled and packaged, the bending degree of the rods is increased, the product quality cannot be ensured, and the use of downstream high-end customers is influenced;

(2) when the package falls into the same position for a long time, the package shape is not good and uniform, and the falling position cannot be uniformly distributed into two positions on the cross section, so that the package quality improvement and the company product image are influenced;

(3) the vertical fall is large, so that the bars are easy to collide or scratch when being in contact with each other and the bar and a supporting arm of a steel falling machine in the falling process, and the surface quality of a product is influenced;

(4) the vertical fall is large, the impact on equipment is large, and particularly when the specification is large, no buffer mechanism exists, so that the service lives of components such as a transmission mechanism of a steel falling machine, a material supporting arm and the like are easily influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rod steel falling machine buffer reduces the rod drop, prevents that the rod from because the crookedness that rod intersection, winding lead to is out of tolerance, the bruise etc. solves the problem that exists among the background art at the collection in-process.

The technical scheme of the utility model is that:

a buffering device of a bar steel dropping machine comprises a vertical steel dropping machine, a conveying roller way, collecting tanks and a chain conveyor, wherein the tail end of the chain conveyor is provided with a plurality of collecting tanks which are arranged side by side and vertical steel dropping machines which are matched with the collecting tanks, the collecting vat is the U type, the tank bottom of U type collecting vat is equipped with the rollgang, the steel machine that falls perpendicularly contains the transmission shaft, drive gear, ask the material arm, the chain, driving belt, driving motor and passive sprocket, driving motor passes through driving belt and is connected with the drive gear drive, drive gear is located the upside of U type collecting vat, passive sprocket is located the downside of U type collecting vat, drive gear and passive sprocket pass through chain drive and connect, ask the length of material arm and the groove width phase-match of U type collecting vat, ask the one end of material arm to fix on the chain, just be located the upper portion of U type collecting vat and set up a pair of keeping and indicate in U type collecting vat: a left retaining finger and a right retaining finger. The left holding finger and the right holding finger are in strip shapes, one end of each of the left holding finger and the right holding finger is rotatably connected to two corresponding side walls of the U-shaped collecting groove, and the other end of each of the left holding finger and the right holding finger is connected with a piston rod of a holding finger driving cylinder.

The lengths of the left holding finger and the right holding finger in the bar material buffer device are matched with the groove width of the U-shaped collecting groove.

The lengths of the left holding finger and the right holding finger in the bar material buffering device are smaller than the groove width of the U-shaped collecting groove and larger than one half of the groove width of the U-shaped collecting groove.

And the left holding finger and the right holding finger in the bar material buffer device are close to the tail end blanking position of the chain conveyor.

Adopt the utility model discloses, when the rod transported to the end through chain conveyor, the left side was kept to indicate and the right side keeps indicating to be in the horizontality promptly closed state under the effect that the maintenance indicates to drive actuating cylinder this moment, then the rod falls into the left side and keeps indicating and the right side keeps indicating, when the support arm on the chain rotates the left side and keeps indicating and the right side keeps indicating the below that indicates, under the effect that the maintenance indicates to drive actuating cylinder, the left side keeps indicating to keep indicating to open gradually with the right side, and put to holding in the palm on the material arm with the slow putting of rod, it puts to the rollgang with the rod along with the transmission of chain to ask the material arm, and carry appointed place to bundle the packing can.

The utility model has the advantages that: the drop height of the bar is reduced, the problems of poor bending degree, bump damage and the like caused by bar intersection and winding in the collecting process of the bar are prevented, the requirement of packaging internal control standards can be met, the working efficiency is effectively improved, offline bundle breaking, arranging and rebinding of the bar with problems are avoided, the delivery period is shortened, and the cost is reduced.

Drawings

FIG. 1 is a front view of the background art;

FIG. 2 is a front view of the present invention;

fig. 3 is a left side view of the present invention;

fig. 4 is a top view of the present invention;

FIG. 5 is a front view of the vertical steel dropping machine of the present invention with a holding finger;

FIG. 6 is a left side view of a single-unit enlarged view of the vertical steel dropping machine of the present invention;

FIG. 7 is a top view of a single unit enlarged view of the vertical steel dropping machine of the present invention;

fig. 8 is a front view of the retaining finger of the present invention;

fig. 9 is a left side view of the retaining finger of the present invention;

fig. 10 is a top view of the retaining finger of the present invention;

fig. 11 is a schematic view of the high state of the left holding finger of the present invention;

fig. 12 is a schematic view of the low position state of the left holding finger of the present invention;

FIG. 13 is a top view of the vertical steel dropping machine unit with the holding fingers;

in the figure: the device comprises a vertical steel falling machine 1, a transmission shaft 2, a transmission gear 3, a material supporting arm 4, a chain 5, a left holding finger 6, a right holding finger 7, a cylinder base fixing end 8, a holding finger driving cylinder 9, a cylinder piston rod 10, a piston rod holding finger connecting shaft 11, a holding finger fixing shaft 12, a transmission belt 17, a transmission wheel 18, a transmission motor 19, a motor base 20, a roller way motor 21, a steel falling machine base 22, a roller way bearing base 23, a roller way conveying 24, bundled bars 25, a collecting tank 26, a detection grating 27, bars to be collected 28, a material supporting arm fixing pin shaft 29, wheels 30, a U-shaped groove guide 31 and a chain conveyor 34.

Detailed Description

The invention will be further explained by way of example with reference to the accompanying drawings.

Referring to the attached drawings 2-13, a bar steel dropping machine buffering device comprises a vertical steel dropping machine 1, a conveying roller way 24, a collecting groove 26 and a chain conveyor 34, wherein the tail end of the chain conveyor 34 is provided with a plurality of collecting grooves 26 arranged side by side and the vertical steel dropping machine 1 matched with each collecting groove 26, the collecting groove 26 is in a U shape, the conveying roller way 24 is arranged at the bottom of the U-shaped collecting groove 26, the vertical steel dropping machine 1 comprises a transmission shaft 2, a transmission gear 3, a material supporting arm 4, a chain 5, a transmission belt 17, a transmission motor 19 and a driven sprocket, the transmission motor 19 is in driving connection with the transmission gear 3 through the transmission belt 17, the transmission gear 3 is positioned at the upper side of the U-shaped collecting groove 26, the driven sprocket is positioned at the lower side of the U-shaped collecting groove 26, the transmission gear 3 and the driven sprocket are in driving connection through the chain 5, the length of the material supporting arm 4 is matched with the groove width of the U-shaped collecting groove 26, one end of the material supporting arm 4 is fixed on the chain 5, and a pair of holding fingers are arranged in the U-shaped collecting groove 26 and positioned on the upper part of the U-shaped collecting groove 26: the left holding finger 6 and the right holding finger 7 are in strip shapes, one end of each of the left holding finger 6 and the right holding finger 7 is rotatably connected to two corresponding side walls of the U-shaped collecting groove 26, and the other end of each of the left holding finger 6 and the right holding finger 7 is connected with a piston rod of the holding finger driving cylinder 9.

In this embodiment, referring to fig. 2-13, the vertical steel dropping machine 1 has 12 (including 12U-shaped collecting troughs 26), the distance between two adjacent steel dropping machines is about 1.25 m, the total length is about 14 m, and the distance and the total length between two adjacent steel dropping machines can be adjusted according to the specification and the length of the product to be produced, and the distance and the total length can be adapted to the corresponding product. Every six steel falling machines 1 are in a group, and are respectively powered by one transmission motor through a belt, and the total number of the transmission motors is two.

The steel falling machine transmission system is arranged on the upper side of the collecting tank 26, is connected by four transmission shafts through a rigid coupling and is driven by a motor. A driven chain wheel is arranged on the lower side of each collecting groove 26, and the chains of the steel falling machine are driven to do periodic motion through the driving chain wheels.

Three material supporting arms 4 are symmetrically arranged on a chain 5 of each steel falling machine, the roots of the material supporting arms 4 are fixed with chain links through pin shafts, two sides of each pin shaft are respectively provided with a wheel, and the wheels are guided through U-shaped grooves of the stand columns to play a role in guiding and stabilizing.

A pair of holding fingers, i.e., a left holding finger 6 and a right holding finger 7, are mounted on the side walls of each U-shaped collecting chute 26, and the holding fingers are driven by an air cylinder. The length of the left holding finger 6 and the right holding finger 7 is smaller than the groove width of the U-shaped collecting groove 26 and is larger than half of the groove width of the U-shaped collecting groove 26.

All the holding fingers are divided into two groups in the longitudinal direction (length direction), each six groups form one group, each group can independently act or can synchronously act in two groups in an interlocking way, and the holding fingers correspond to steel products with different lengths, if the length of the product is about 6 meters, only one group of the corresponding holding fingers needs to act correspondingly, and the other group of the holding fingers does not need to act, namely, the holding fingers are in a shutdown state; if the length of the produced product is about 12 meters, two groups of holding fingers are needed to be interlocked, and all the holding fingers act simultaneously and consistently. The specific control is flexibly operated according to the production condition.

The steel falling machine 1 drives a transmission gear 3 to rotate by a transmission shaft 2, the transmission gear 3 drives a chain 5 on the transmission gear to move, the chain 5 drives a material supporting arm 4 with one end fixed on the chain 5 to move, the fixed end of the root of the material supporting arm 4 is processed into a shape similar to the shape of one section of outer chain ring in the chain 5, the material supporting arm 4 is sleeved on one section of chain ring from the outer side, two round holes are arranged as connecting points, the root of the material supporting arm 4 is fixed on the chain 5 by two anchor bolts, the fixing is firm and reliable, the chain 5 drives the material supporting arm to move together, the material supporting arm 4 moves to a steel supporting working position of a steel falling machine collecting tank 26 along with the chain 5, a special material supporting arm position detection grating detects a corresponding position signal at the moment, the transmission shaft 2 is controlled to stop moving, and the material supporting arm 4 is guaranteed to stop at a corresponding steel collecting and supporting station.

When a layer of bar cut by the small-specification bar rolling line sizing shear each time is transported to the tail end through the chain conveyor 34, the movable ends of the left holding finger 6 and the right holding finger 7 are both in a high position (namely in a closed state), a detection proximity switch on the chain conveyor detects that steel passes through, then the time is delayed for 3 seconds (the time is adjustable), the bar falls onto the left holding finger 6 and the right holding finger 7 and is temporarily supported by the two holding fingers, then the left holding finger 6 is firstly opened (the holding finger cylinders 9 simultaneously act, the piston rod 10 is retracted, the right holding finger 7 falls to a low position), the layer of bar is put on the material supporting arm 4 of the steel falling machine, the falling point of the layer of bar is positioned at a position slightly left in the middle of the collecting tank 26, then the time is delayed for 3 seconds (the time is adjustable), the holding finger cylinders 9 act again, all the left holding fingers 6 are simultaneously lifted to the high position, namely the holding fingers are all in the closed state, waiting the second layer rod on the chain conveyor to come over, it comes to detect proximity switch detects there is the steel, then delay 3 seconds (time is adjustable) rod falls into two and keeps to indicate, later the right side keeps to indicate 7 to open simultaneously (cylinder 9 moves simultaneously, piston rod 10 withdraws, keep indicating 7 to fall to the low level with the right side), put this layer of rod on the support arm 4 of falling the steel machine, make its point of falling be located the collection vat 26 middle position of turning right a little, then delay 3 seconds (time is adjustable) keep to indicate cylinder 9 and move again, keep indicating 7 to rise to the high level simultaneously with the right side, two keep indicating promptly and all being in the state of closing (holding in the palm the steel). Two keep indicating through opening in turn, putting down the rod, both indicate the buffering that holds in the palm the steel through two keep to make it more add parallelly, reduce the drop can be better prevent alternately between the rod, the winding, reduce the bruise, divide into two steel falling points with the rod again on the section width direction of steel falling machine collecting vat, be equivalent to two little regions of subdividing in turn, tiling in turn, collect for the rod, especially little specification rod are more even, smooth-going on the whole section of collecting vat. When the bars on the third layer come to be collected, the periodic repeated action is carried out according to the rule of the first action.

After a plurality of batches of rods which are buffered and flexibly descend to a support arm of a steel falling machine are kept to reach a certain number, a transmission motor 19 on a motor base 20 drives a transmission wheel 18 to drive a transmission belt 17 to drive a vertical steel falling machine chain 5 on a base 22 of the steel falling machine to rotate, so that the support arm 4 is driven to move downwards until a bundled rod (rod) 25 connected to the support arm is slowly placed on a conveying roller way 24, the conveying roller way 24 tightly fixed by a bearing seat 23 of the conveying roller way is driven by a roller way motor 21 to slowly open the rod on the conveying roller way, and after the bundled rod (rod) 25 in a bulk material state is opened (moved) to a bundling station, the bundling machine is used for bundling and packaging the bundled rod (rod) 25.

Claims

1. A buffering device of a bar steel dropping machine comprises a vertical steel dropping machine (1), a conveying roller way (24), a collecting groove (26) and a chain conveyor (34), wherein the tail end of the chain conveyor (34) is provided with a plurality of collecting grooves (26) which are arranged side by side and vertical steel dropping machines (1) which are matched with each collecting groove (26), the collecting groove (26) is U-shaped, the conveying roller way (24) is arranged at the bottom of each U-shaped collecting groove (26), each vertical steel dropping machine (1) comprises a transmission shaft (2), a transmission gear (3), a material supporting arm (4), a chain (5), a transmission belt (17), a transmission motor (19) and a driven chain wheel, the transmission motor (19) is in driving connection with the transmission gear (3) through the transmission belt (17), the transmission gear (3) is located on the upper side of the U-shaped collecting groove (26), and the driven chain wheel is located on the lower side of the U-shaped collecting groove (26), drive gear (3) and driven sprocket pass through chain (5) transmission and are connected, hold in the palm the length of material arm (4) and the groove width phase-match of U type collecting vat (26), hold in the palm the one end of material arm (4) and fix on chain (5), its characterized in that: a pair of holding fingers are arranged in the U-shaped collecting groove (26) and positioned at the upper part of the U-shaped collecting groove (26): the device comprises a left holding finger (6) and a right holding finger (7), wherein the left holding finger (6) and the right holding finger (7) are in strip shapes, one ends of the left holding finger (6) and the right holding finger (7) are respectively and rotatably connected to two corresponding side walls of a U-shaped collecting groove (26), and the other ends of the left holding finger (6) and the right holding finger (7) are respectively connected with a piston rod of a holding finger driving cylinder (9).

2. The cushioning device of the bar falling machine according to claim 1, wherein: the length of the left holding finger (6) and the right holding finger (7) is matched with the groove width of the U-shaped collecting groove (26).

3. The cushioning device of the bar falling machine according to claim 2, wherein: the lengths of the left holding finger (6) and the right holding finger (7) are smaller than the groove width of the U-shaped collecting groove (26) and larger than one half of the groove width of the U-shaped collecting groove (26).

4. The cushioning device of the bar falling machine according to claim 1, wherein: the left holding finger (6) and the right holding finger (7) are close to the blanking position at the tail end of the chain conveyor (34).