A new type of pusher device in heating furnace

Abstract

The utility model discloses a novel heating furnace inside push steel device, including hydraulic cylinder, guiding device, positioning switch and piston rod, the output of hydraulic cylinder is rotatively connected with a movable connecting rod, the other end of movable connecting rod is rotatively connected with a guide rod, and the guide rod is horizontally movable and is arranged in guiding device, and the other end of guide rod passes through guiding device and is fixedly connected with piston rod, and the outer end of piston rod is in abutment with the billet in heating furnace, and positioning switch includes positioning seat, connecting long rod and positioning short pole, and one end of connecting long rod and positioning short pole is rotatably installed on positioning seat through pivot, and the included angle between connecting long rod and positioning short pole is relatively fixedly arranged, and the part close to positioning short pole of positioning seat is provided with limit seat, and the arc slot is formed in limit seat, and one end of positioning short pole is limited and clamped in the arc slot, the utility model has the advantages of simple structure and easy maintenance, reduces maintenance cost and production cost, reduces equipment failure rate and improves production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of rebar production technology, and in particular to a novel steel pushing device inside a heating furnace. Background Technology

[0002] In the production of rebar, steel billets are typically fed into the heating furnace using conveyor rollers. The billets are then pushed onto a walking beam by a pushing device. Currently, rolling mills mainly use hydraulic cylinders for this pushing process. However, large, front-mounted hydraulic cylinders are commonly used, and the push rods are not fixed but positioned solely by the furnace wall. This results in severe wear, accelerated equipment aging, increased maintenance and production costs, and low production efficiency. Therefore, there is an urgent need for a new type of pushing device that can be positioned outside the furnace and has an adjustable stroke. Utility Model Content

[0003] The purpose of this invention is to provide a novel steel pushing device inside a heating furnace. By fixing the direction through an external guide device, it reduces contact with the furnace wall and thus reduces wear. Furthermore, the stroke of the push rod can be adjusted by a positioning switch. The structure is simple and easy to maintain, reducing maintenance and production costs, lowering equipment failure rates, and improving production efficiency.

[0004] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0005] A novel steel-pushing device for a heating furnace, characterized in that it includes a hydraulic cylinder, a guide device, a positioning switch, and a piston rod. The output end of the hydraulic cylinder is rotatably connected to a movable connecting rod, and the other end of the movable connecting rod is rotatably connected to a guide rod. The guide rod is horizontally movable within the guide device, and its other end passes through the guide device and is fixedly connected to the piston rod. The outer end of the piston rod abuts against a steel billet inside the heating furnace. The positioning switch includes a positioning seat, a connecting long rod, and a positioning short rod. One end of the connecting long rod and the positioning short rod are rotatably mounted on the positioning seat via a rotating shaft. The included angle between the connecting long rod and the positioning short rod is fixedly set. A limiting seat is provided near the positioning short rod on the positioning seat, and an arc-shaped groove is formed on the limiting seat. One end of the positioning short rod is limited and locked within the arc-shaped groove.

[0006] Preferably, a cylinder mounting base is installed on the outside of the hydraulic cylinder, and the hydraulic cylinder is rotatably connected to the cylinder mounting base.

[0007] Preferably, the output end of the hydraulic cylinder, one end of the movable connecting rod, and the connecting rod are rotatably connected by a rotating shaft, and the other end of the movable connecting rod is also rotatably connected to the guide rod by a rotating shaft.

[0008] Preferably, one end of the positioning rod is bolted to a limiting block within the arc-shaped groove, and the limiting block is movably positioned within the arc-shaped groove.

[0009] Preferably, adjustable position detection switches are provided at both ends of the stroke of the limiting block within the arc-shaped groove, and the two sets of position detection switches are electrically connected to the hydraulic cylinder.

[0010] Preferably, the guiding device includes a guide seat and guide wheels, the guide rod horizontally passes through the guide seat, and at least three sets of guide wheels are provided inside the guide seat above and below the guide rod, and the guide rod is tactilely connected to the guide wheels above and below.

[0011] Preferably, each set of guide wheels has a groove in the middle, and the upper and lower ends of the guide rod are engaged in the grooves of the upper and lower guide wheels.

[0012] Preferably, at the lowest stroke of the hydraulic cylinder, the guide rod, the movable connecting rod, and the hydraulic cylinder are on the same horizontal straight line.

[0013] In summary, this utility model has the following beneficial effects:

[0014] This invention reduces contact with the furnace wall and wear by fixing the direction using an external guiding device. The guiding device also ensures the guide rod moves in a horizontal position, preventing billet displacement. The invention incorporates a positioning switch assembly, allowing for easy adjustment of the piston rod's stroke. A position detection switch controls the hydraulic cylinder, thereby controlling the piston rod's stroke. This invention has a simple structure and is easy to maintain, effectively reducing maintenance and production costs, lowering equipment failure rates, and improving production efficiency. (See attached drawings.)

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model in the push-steel state;

[0017] Figure 3 This is a schematic diagram of the guide wheel structure of this utility model. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. These embodiments do not constitute a limitation on this utility model.

[0019] The technical or scientific terms used in this application description should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. Terms indicating direction, such as "upper," "lower," "left," "right," "center," "vertical," "horizontal," "inner," and "outer," used in this application description are only used to indicate relative directions or positional relationships, and do not imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore should not be construed as a limitation of this application. Terms such as "first," "second," "third," and similar terms used in this application description are for descriptive purposes only, used to distinguish different components, and should not be construed as indicating or implying relative importance.

[0020] The words “a,” “one,” or “the” used in this application description should not be construed as an absolute limitation on quantity, but rather as indicating the presence of at least one. The words “including” or “comprising” used in this application description mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects.

[0021] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0023] like Figures 1 to 3The novel steel pushing device in a heating furnace includes a hydraulic cylinder 1, a guide device 2, a positioning switch 3, and a piston rod 4. The output end of the hydraulic cylinder 1 is rotatably connected to a movable connecting rod 5, and the other end of the movable connecting rod 5 is rotatably connected to a guide rod 6. The guide rod 6 is horizontally movably arranged in the guide device 2, and the other end of the guide rod 6 passes through the guide device 2 and is fixedly connected to the piston rod 4. The outer end of the piston rod 4 abuts against the steel billet in the heating furnace. The positioning switch 3 includes a positioning seat 31, a connecting long rod 32, and a positioning short rod 33. One end of the connecting long rod 32 and the positioning short rod 33 are rotatably mounted on the positioning seat 31 through a rotating shaft. The included angle between the connecting long rod 32 and the positioning short rod 33 is fixedly arranged. A limiting seat 34 is provided near the positioning short rod 33 on the positioning seat 31. An arc-shaped groove 35 is opened on the limiting seat 34, and one end of the positioning short rod 33 is limited and locked in the arc-shaped groove 35.

[0024] A cylinder mounting base 11 is installed on the outside of the hydraulic cylinder 1, and the hydraulic cylinder 1 and the cylinder mounting base 11 are rotatably connected relative to each other.

[0025] The output end of the hydraulic cylinder 1, one end of the movable connecting rod 5, and the connecting rod 32 are rotatably connected by a rotating shaft. The other end of the movable connecting rod 5 is also rotatably connected to the guide rod 6 by a rotating shaft.

[0026] One end of the positioning short rod 33 is bolted to a limiting block 36 in the arc-shaped groove 35, and the limiting block 36 is movably positioned in the arc-shaped groove 35.

[0027] An adjustable position detection switch is provided at both ends of the stroke of the limit block 36 within the arc groove 35, and the two sets of position detection switches are electrically connected to the hydraulic cylinder 1.

[0028] The guiding device 2 includes a guide seat 21 and guide wheels 22. The guide rod 6 passes horizontally through the guide seat 21, and at least three sets of guide wheels 22 are provided inside the guide seat 21 above and below the guide rod 6. The guide rod 6 is tactilely connected to the guide wheels 22 above and below.

[0029] Each set of guide wheels 22 has a groove in the middle, and the upper and lower ends of the guide rod 6 are both locked in the grooves of the upper and lower guide wheels 22.

[0030] At the lowest stroke of hydraulic cylinder 1, guide rod 6, movable connecting rod 5 and hydraulic cylinder 1 are on the same horizontal straight line.

[0031] The working principle of this utility model is as follows:

[0032] When the steel billet passes through the furnace feed roller and stops on the cantilever roller inside the furnace, the output end of the hydraulic cylinder 1 extends. After the output end of the hydraulic cylinder 1 extends, it drives the connecting long rod 32 and the positioning short rod 33 inside the positioning switch 3 to rotate. The rotation of the connecting long rod 32 drives the guide rod 6 to extend forward. The guide rod 6 moves horizontally forward through the guide device 2 and drives the piston rod 4 to push the steel billet forward. During the forward pushing process, the position is confirmed by the position detection switch in the positioning switch 2. The steel billet is pushed to the designated position inside the furnace. After the steel billet is pushed to the designated position inside the furnace, the hydraulic cylinder 1 retracts and the piston rod 5 retracts. During the retraction process, the action is stopped by the position detection switch in the positioning switch 2.

[0033] This invention reduces contact with the furnace wall and wear by fixing the direction through an external guiding device, and ensures that the guide rod always moves in a horizontal state to prevent the billet from shifting.

[0034] This invention, by setting a positioning switch assembly, enables convenient adjustment of the piston rod's stroke, and by using a position detection switch to control the hydraulic cylinder, thereby controlling the piston rod's stroke.

[0035] This utility model has a simple structure and is easy to maintain, thereby effectively reducing maintenance and production costs, lowering equipment failure rates, and improving production efficiency.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Those skilled in the art can make various modifications or equivalent substitutions to the present utility model within its substance and protection scope, and such modifications or equivalent substitutions should also be considered to fall within the protection scope of the present utility model's technical solution.

Claims

1. A novel steel pushing device for a heating furnace, characterized in that, The device includes a hydraulic cylinder, a guide device, a positioning switch, and a piston rod. The output end of the hydraulic cylinder is rotatably connected to a movable connecting rod, and the other end of the movable connecting rod is rotatably connected to a guide rod. The guide rod is horizontally movable within the guide device, and the other end of the guide rod passes through the guide device and is fixedly connected to the piston rod. The outer end of the piston rod abuts against a steel billet inside the heating furnace. The positioning switch includes a positioning seat, a connecting long rod, and a positioning short rod. One end of the connecting long rod and the positioning short rod are rotatably mounted on the positioning seat via a rotating shaft. The included angle between the connecting long rod and the positioning short rod is fixedly set. A limit seat is provided near the positioning short rod on the positioning seat, and an arc-shaped groove is formed on the limit seat. One end of the positioning short rod is limited and locked in the arc-shaped groove.

2. The novel steel pushing device in a heating furnace according to claim 1, characterized in that: The hydraulic cylinder is externally mounted with a cylinder body mounting base, and the hydraulic cylinder is rotatably connected to the cylinder body mounting base.

3. The novel steel pushing device in a heating furnace according to claim 1, characterized in that: The output end of the hydraulic cylinder, one end of the movable connecting rod, and the connecting rod are rotatably connected by a rotating shaft, and the other end of the movable connecting rod is also rotatably connected to the guide rod by a rotating shaft.

4. The novel steel pushing device in a heating furnace according to claim 1, characterized in that: One end of the positioning rod is bolted to a limiting block in the arc-shaped groove, and the limiting block is movably positioned in the arc-shaped groove.

5. A novel steel pushing device in a heating furnace according to claim 4, characterized in that: An adjustable position detection switch is provided at both ends of the stroke of the limit block within the arc-shaped groove, and the two sets of position detection switches are electrically connected to the hydraulic cylinder.

6. The novel steel pushing device in a heating furnace according to claim 1, characterized in that: The guiding device includes a guide seat and guide wheels. The guide rod horizontally passes through the guide seat, and at least three sets of guide wheels are provided inside the guide seat above and below the guide rod. The guide rod is tactilely connected to the guide wheels above and below.

7. A novel steel pushing device for a heating furnace according to claim 6, characterized in that: Each set of guide wheels has a groove in the middle, and the upper and lower ends of the guide rod are engaged in the grooves of the upper and lower guide wheels.

8. The novel steel pushing device in a heating furnace according to claim 1, characterized in that: At the lowest stroke of the hydraulic cylinder, the guide rod, the movable connecting rod, and the hydraulic cylinder are on the same horizontal straight line.

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