CN210180154U - Stepping furnace bar material feeding adjusting device - Google Patents

Abstract

The utility model relates to a walking-beam furnace rod material loading adjusting device is provided with the walking beam in the walking-beam furnace and follows the fixed beam that walking beam extending direction both sides set up, and material loading adjusting device includes: the preparation frame assembly comprises a second conveying channel, the second conveying channel extends from the proximal end part of the fixed beam on one side to the proximal end part of the fixed beam on the other side, the pushing mechanism comprises a push rod and a power piece for pushing and pulling the push rod, and the push rod can push the rod, such as to center the rod; the measuring frame assembly comprises a first conveying channel, the first conveying channel is communicated with a second conveying channel, a liftable baffle is arranged at one end, close to the feed inlet, of the first conveying channel, and a laser ranging mechanism is arranged at one end, far away from the feed inlet, of the first conveying channel. The main beneficial effects are: the phenomenon of inclined material is avoided, and the utilization rate and the yield of the bars in the furnace are improved. The loss cost is reduced, and the equipment fault is reduced.

Description

Stepping furnace bar material feeding adjusting device

Technical Field

The utility model relates to a heating furnace electrical automation control, concretely relates to walking beam furnace rod material feeding adjusting device.

Background

The stepping furnace is used for heating raw material round steel through natural gas. The short material often appears when raw and other materials round steel is according to standard size secondary blank because of the length problem, because of original walking beam design restriction, the short material mixes and gets into the heating furnace in the long material, can't guarantee that the short material is in the centre, leads to the material to lean and bends easily, leads to whole stove material to bend when serious, causes great production accident.

In a conventional solution as shown in fig. 1, bars of different lengths are placed on a feeding rack 6 'and are conveyed into a stepping furnace 5' by a conveying device. A walking beam 4 'and fixed beams 3' arranged at two sides of the walking beam 4 'are arranged in the walking furnace 5'. Wherein, the fixed beam 3' is a fixed device and can not move; the upper surface of the walking beam 4 ' can be raised above the upper surface of the fixed beam 3 ', the upper surface of the walking beam 4 ' can also be lowered below the upper surface of the fixed beam 3 ', and the walking beam 4 ' can be moved forward or backward. The bar material on the fixed beam 3 ' is lifted by the ascending of the walking beam 4 ', the bar material is moved forwards, the walking beam 4 ' descends to place the bar material on the fixed beam 3 ', the walking beam 4 ' continues to descend for a certain distance and retreats, the walking beam 4 ' ascends to lift the bar material on the fixed beam 3 ', and thus the bar material is gradually covered on the fixed beam 3 ' by the reciprocating motion of the walking beam 4 '. When the bar material enters the stepping furnace 5 ' initially, one end of the bar material is blocked by the sizing stop lever 1 ' and is positioned, therefore, one ends of the bar material with different lengths are arranged on the fixed beam 3 ' and are always aligned, namely, the upper ends of the bar material on the fixed beam 3 ' are aligned in fig. 1, but some bar materials are extremely short, so that the two ends of the short bar material cannot be simultaneously arranged on the fixed beams 3 ' at the two sides, and production accidents are easily caused.

Improvements are therefore needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a stepping furnace rod material feeding adjusting device can detect out the rod of short excessively.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a walking-beam furnace rod material loading adjusting device, be provided with the walking beam in the walking-beam furnace and accompany the fixed beam that walking beam extending direction both sides set up, material loading adjusting device includes:

the preparation frame assembly comprises a second conveying channel and a pushing mechanism arranged at one end of the second conveying channel far away from a feed inlet of the stepping furnace, the second conveying channel extends from the near end part of the fixed beam on one side of the stepping beam to the near end part of the fixed beam on the other side of the stepping beam, the pushing mechanism comprises a push rod and a power piece used for pushing and pulling the push rod, the front end of the push rod stays at a first position and can move into the second conveying channel to a second position to the maximum extent, and the front end of the push rod can stay at any position between the first position and the second position;

the measuring frame assembly is arranged outside a feed inlet of the stepping furnace and comprises a first conveying channel, the first conveying channel is communicated with a second conveying channel, the first conveying channel is close to one end of the feed inlet and is provided with a liftable baffle, and the first conveying channel is far away from one end of the feed inlet and is provided with a laser ranging mechanism.

Preferably, when the bar is resting in the second conveying channel, the front end of the pusher moves to a third position, in which the end of the bar close to the pusher is also in the third position and the whole bar is in a centred position facing the fixed beam.

Preferably, the power member is a hydraulic unit.

Preferably, the first conveying channel and the second conveying channel are in the same straight line.

Optimally, a protective plate is further arranged between the first transmission channel and the laser ranging mechanism, and a through hole for the optical signal of the laser ranging mechanism to pass through is formed in the protective plate.

Optimally, an information display screen for displaying the measurement information is arranged on the laser ranging mechanism.

Optimally, an alarm is further arranged on the laser ranging mechanism.

Optimally, the device also comprises a controller, wherein a signal receiving end of the controller is connected with the laser ranging mechanism, and a control end of the controller is connected with the pushing mechanism.

Preferably, the preparatory rack assembly includes a plurality of second transfer rollers arranged in parallel, the second transfer path being defined by upper surfaces of the second transfer rollers.

Preferably, the gage rack assembly includes a plurality of first conveyor rollers arranged in parallel, the first conveyor channel being defined by an upper surface of the first conveyor rollers.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the utility model discloses a stepping furnace rod material loading adjusting device, because measure the baffle and the laser rangefinder mechanism that the frame subassembly includes the liftable, before the rod gets into the stepping furnace, the baffle raises the front end of rod and keeps out, sets up the distance between the rear end that can measure the rod at the laser rangefinder mechanism at the rod rear and the laser rangefinder mechanism to judge the rod of short in advance, and can reject this short rod before getting into the stepping furnace. The push rod in the preparation frame assembly can push the bars, for example, the bars can be pushed to be in a centering position when facing the fixed beams on the two sides, and the fixed beams generally have a certain width in the extending direction, so that the push rod pushes the bars to adjust the positions of some shorter bars, so that the two ends of the shorter bars can be simultaneously overlapped on the fixed beams on the two sides. And, the push rod can promote the function of rod and can also realize promoting the rod to be in the centering position in the face of both sides fixed beam, and at this moment can not only utilize the width of both sides fixed beam to adapt to the rod of different length to a bigger extent, for example some rods are short to only being a bit longer than the inboard side distance of both sides fixed beam, even such rod, owing to be in the centering position in the face of both sides fixed beam, the rod both ends also can be put on the fixed beam simultaneously. And when the bar is in the centering position facing the fixed beams on the two sides, the stress is more uniform when the walking beam bears and moves the bar, the walking beam is protected, and the durability of the walking beam is improved. The main beneficial effects are: the phenomenon of inclined material is avoided, and the utilization rate and the yield of the bars in the furnace are improved. The loss cost is reduced, and the equipment fault is reduced.

Drawings

Some specific embodiments of the present invention will be described in detail hereinafter, by way of illustration and not by way of limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a schematic structural diagram (top view) of a bar feeding adjustment device of a stepping furnace in the prior art;

fig. 2 is a schematic structural view (overlooking) of a stepping furnace bar material feeding adjusting device according to a preferred embodiment of the invention;

wherein the reference numerals are as follows:

10. preparing a rack assembly; 11. a second transfer roller; 12. a second transfer channel; 13. a pushing mechanism; 131. a push rod; 132. a power member;

20. a measuring rack assembly; 21. a first transfer roller; 22. a first transfer channel; 23. a baffle plate; 24. a laser ranging mechanism; 241. an information display screen; 25. a protection plate; 251. a through hole; 26. a controller;

30. a feeding frame;

80. a bar material;

90. a stepping furnace; 91. a walking beam; 92. a fixed beam; 93. a feed inlet; 94. a discharge port; 95. and a discharging transmission mechanism.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

As shown in fig. 2, the bar feeding adjusting device of the stepping furnace includes a preparation rack assembly 10, a measuring rack assembly 20 and a feeding rack 30 for feeding the bars 80 into the stepping furnace 90.

The stepping furnace 90 is provided with a heating mechanism for heating the rod 80 by natural gas.

The stepping furnace 90 is provided with a stepping beam 91 and a fixed beam 92. The fixed beam 92 extends along the longitudinal direction of the inner space of the stepping furnace 90 together with the stepping beam 91. The fixed beams 92 are provided on both sides of the walking beam 91. The upper surfaces of the fixing beams 92 on both sides are at the same height.

The fixed beam 92 is a fixed device and is immovable. The upper surface of the walking beam 91 may rise above the upper surface of the fixed beam 92, the upper surface of the walking beam 91 may also fall below the upper surface of the fixed beam 92, and the walking beam 91 may move forward or backward. Lifting the bar on the fixed beam 92 by the ascending of the walking beam 91-moving forward (moving leftward in fig. 2) -lowering the walking beam 91 to place the bar on the fixed beam 92-continuing to lower the walking beam 91 by a distance and back (moving rightward in fig. 2) -lifting the bar 80 on the fixed beam 92 by the ascending of the walking beam 91, thus gradually spreading the bar 80 over the fixed beam 92 by the reciprocating movement of the walking beam 91. After the stepping furnace 90 is heated, the stepping beam 91 is started to reciprocate to move the rods 80 to the discharging transmission mechanism 95 one by one and transport the rods out of the stepping furnace 90 from the discharging port 94.

The start position of the walking beam 91, i.e. the right side of the walking beam 91, is provided with a preparation rack assembly 10 where the bar 80 is temporarily stopped waiting for the walking beam 91 to take it.

The measuring rack assembly 20 is provided outside the feed port 93 of the stepping furnace 90 where the rod 80 temporarily stays in preparation for entering the stepping furnace 90.

A plurality of bars 80 with different lengths are placed on the feeding frame 30, and the bars 80 enter the measuring frame assembly 20 one by one.

The measuring rack assembly 20 includes a plurality of first conveying rollers 21 arranged in parallel, and the plurality of first conveying rollers 21 are driven to rotate by a chain transmission and a motor. The first transfer roller 21 is depressed toward the center in the axial direction to form a groove, a first transfer passage 22 is defined by the upper surface of the first transfer roller 21, and the rod 80 travels in the first transfer passage 22. At the front end of the first conveying channel 22, i.e. above in fig. 2, a liftable baffle 23 is arranged, and the baffle 23 is close to the feeding port 93. The shutter 23 may be driven by a cylinder or a motor.

The shutter 23 is raised to block the front end (upper end in fig. 2) of the bar 80. The end of the first conveying passage 22 remote from the feed opening 93, i.e., the lower side in fig. 2, is provided with a laser ranging mechanism 24. The laser ranging mechanism 24 sends laser to the rear end (i.e. tail end) of the bar 80 blocked by the baffle 23, so as to obtain the distance data d3 between the laser ranging mechanism 24 and the tail end of the bar 80. Since the distance between the laser distance measuring device 24 and the baffle 23 is fixed and is d1, the length l = d1-d3 of the bar 80.

A protection plate 25 is further arranged between the laser ranging mechanism 24 and the first transmission channel 22, a through hole 251 is formed in the protection plate 25, and the through hole 251 is used for the optical signal of the laser ranging mechanism 24 to pass through. The protection plate 25 protects the laser ranging mechanism 24 and prevents the bar 80 from damaging the laser ranging mechanism 24.

The laser ranging mechanism 24 is further provided with an information display screen 241 for displaying the measurement information, so that the measurement result can be conveniently checked by the staff.

The laser ranging mechanism 24 is further provided with an alarm for warning when the bar 80 is too short or too long, and prompting the staff to take away the bar 80.

After the laser distance measuring mechanism 24 finishes measuring, the baffle 23 descends, and the bar 80 enters the preparation rack assembly 10 under the driving of the first conveying roller 21.

The rod 80 enters the preparation rack assembly 10 through the feed port 93.

The preparation frame assembly 10 includes a plurality of second transfer rollers 11 arranged in parallel, the second transfer rollers 11 are similar to the first transfer rollers 21 in structure, and the plurality of second transfer rollers 11 are rotated by chain transmission and motor driving. The axial middle part of the second transfer roller 11 is depressed toward the center to form a groove, and a second transfer passage 12 is defined by the upper surface of the second transfer roller 11. The rod 80 travels in the second conveying path 12 until it is stopped by the front end (lower end in fig. 2) of the push rod 131.

Wherein the second conveying channel 12 communicates with the first conveying channel 22 to receive the bars 80 introduced from the first conveying channel 22. The second conveyor path 12 is co-linear with the first conveyor path 22 to facilitate the travel of the bars 80.

The second conveyance channel 12 extends from the right end of the fixed beam 92 on the upper side to the right end of the fixed beam 92 on the lower side in fig. 2.

Push rod 131 is part of pusher jack 13. Pusher jack 13 includes a push rod 131 and a power member 132 for pushing and pulling push rod 131. Wherein the power member 132 is a hydraulic unit, i.e. the push rod 131 is driven to move forward and retract backward by hydraulic pressure. The specific form of the power member 132 is not limited, and may be, for example, a cylinder power member or the like.

The pusher 131 stays at the first position (near the outer edge of the upper fixed beam 92), the pusher 131 can move to the second position (near the inner edge of the upper fixed beam 92) to the maximum extent toward the second conveying passage 12, and the front end of the pusher 131 stays at any position between the first position and the second position.

When the bar 80 enters the second conveying channel 12, the push rod 131 stays at the first position, and the push rod 131 blocks the bar 80. Then, the rod 80 is pushed by the push rod 131 so that the rod 80 faces the fixed beam 92 (i.e., the fixed beams 92 on both sides of the walking beam 91 as a whole) in a centered state. Since the walking beam 91 is positioned at the center of the fixed beams 92 on both sides, the bar 80 is also centered on the walking beam 91.

The distance between the two side fixed beams 92 can be effectively utilized when the bar 80 faces the fixed beams 92 in a centered state, so that both ends of the shorter bar 80 (even the bar is slightly longer than the distance between the inner sides of the two side fixed beams 92) are placed on the two side fixed beams 92. The utilization rate of the bars 80 with different lengths is improved.

The centering state of the bar material 80 facing the walking beam 91 can make the stress of the walking beam 91 more uniform when the walking beam 91 bears and moves the bar material 80, and the durability of the walking beam 91 is improved.

After the rod 80 is pushed by the push rod 131 to stay in the above-mentioned centering state, the front end of the push rod 131 stays at the third position, and the third position is often between the first position and the second position. At this time, the front end (upper end in fig. 2) of the rod 80 stays at the third position together with the front end (lower end in fig. 2) of the push rod 131.

The distance between the first position and the third position is d4, i.e., the stroke of the push rod 131.

The first position is at a constant distance d2 from the center of the furnace. I.e. after centering of the rod 80, the center of the length of the rod 80 is at a distance d2 from the first position.

The length l = d1-d3 of the bar 80 measured by the laser distance measuring mechanism 24, the stroke of the push rod 131 can be obtained: d4= d2- (d 1-d 3)/2.

The stepping furnace bar material feeding adjusting device further comprises a controller 26, a signal receiving end of the controller 26 is connected with the laser ranging mechanism 24, and a control end of the controller 26 is connected with the pushing mechanism 13. The controller 26 may be a PLC programmable controller, and the PLC programmable controller may obtain the stroke of the push rod 131 through the above calculation.

Of course, in other technical solutions, the stroke of the push rod 131 may not be controlled by the controller 26, for example, the push rod 131 is pushed manually to travel a stroke with a length d4, so that the rod 80 is centered.

In summary, the working principle of this example is as follows:

the baffle 23 is lifted to block the front end of the bar 80, the laser ranging mechanism 24 measures the distance of the tail end of the bar 80, so that the bar with overlong length or overlong length can be judged, and the abnormal bar is removed before the bar enters the stepping furnace 90, so that the stepping furnace 90 is prevented from being out of order. After the bar 80 enters the stepping furnace 90, the front end of the push rod 131 blocks the bar 80, and the distance from the tail end of the bar 80 measured by the laser ranging mechanism 24 is used to obtain the forward pushing distance of the push rod 131, and the front end of the push rod 131 pushes the bar 80 to the centering position, that is, the bar 80 faces the fixed beam 92 to be the centering position. The bar 80 can enter the walking beam 91 and the fixed beam 92 in a centered position. Therefore, not only can the bars 80 with over-short or over-long length be found and removed in time, but also the positions of the bars 80 in the stepping furnace 90 can be centered, so that the utilization rate and the yield of the bars are improved.

Therefore, the main beneficial effects are as follows: the phenomenon of inclined material is avoided, and the utilization rate and the yield of the bars in the furnace are improved. The loss cost is reduced, and the equipment fault is reduced.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. The utility model provides a walking-beam furnace rod material loading adjusting device, be provided with the walking beam in the walking-beam furnace and accompany the fixed beam that walking beam extending direction both sides set up, its characterized in that, material loading adjusting device includes:

a preparation frame assembly (10), wherein the preparation frame assembly (10) comprises a second conveying channel (12) and a pushing mechanism (13) arranged at one end of the second conveying channel (12) far away from a feed inlet of the stepping furnace, the second conveying channel (12) extends from the near end part of the fixed beam at one side of the stepping beam to the near end part of the fixed beam at the other side of the stepping beam, the pushing mechanism (13) comprises a push rod (131) and a power piece (132) used for pushing and pulling the push rod (131), the front end of the push rod (131) stays at a first position and can move to a second position to the maximum extent into the second conveying channel (12), and the front end of the push rod (131) can stay at any position between the first position and the second position;

measuring rack subassembly (20), measuring rack subassembly (20) sets up outside step furnace feed inlet, measuring rack subassembly (20) includes first transfer passage (22), first transfer passage (22) with second transfer passage (12) are linked together, first transfer passage (22) are close to the one end of feed inlet is provided with baffle (23) of liftable, first transfer passage (22) are kept away from the one end of feed inlet is provided with laser rangefinder mechanism (24).

2. The stepping furnace bar feeding adjusting device of claim 1, wherein: when the bar stays in the second conveying channel (12), the front end of the push rod (131) moves to a third position, and the end of the bar close to the push rod (131) is also at the third position, and the whole bar faces the fixed beam and is at the centering position.

3. The stepping furnace bar feeding adjusting device of claim 1, wherein: the power member (132) is a hydraulic unit.

4. The stepping furnace bar feeding adjusting device of claim 1, wherein: the first conveying channel (22) and the second conveying channel (12) are in the same straight line.

5. The stepping furnace bar feeding adjusting device of claim 1, wherein: a protection plate (25) is further arranged between the first transmission channel (22) and the laser ranging mechanism (24), and a through hole (251) for the optical signal of the laser ranging mechanism (24) to pass through is formed in the protection plate (25).

6. The stepping furnace bar feeding adjusting device of claim 1, wherein: and an information display screen (241) for displaying measurement information is arranged on the laser ranging mechanism (24).

7. The stepping furnace bar feeding adjusting device of claim 1, wherein: and an alarm is also arranged on the laser ranging mechanism (24).

8. The stepping furnace bar feeding adjusting device of claim 1, wherein: the laser distance measuring device further comprises a controller (26), a signal receiving end of the controller (26) is connected with the laser distance measuring mechanism (24), and a control end of the controller (26) is connected with the pushing mechanism (13).

9. The stepping furnace bar feeding adjusting device of claim 1, wherein: the preparatory frame assembly (10) includes a plurality of second conveying rollers (11) arranged in parallel, and the second conveying passage (12) is defined by the upper surfaces of the second conveying rollers (11).

10. The stepping furnace bar feeding adjusting device of claim 1, wherein: the measuring rack assembly (20) comprises a plurality of first conveying rollers (21) which are arranged in parallel, and the first conveying channel (22) is limited by the upper surfaces of the first conveying rollers (21).

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