Steel belt extrusion forming side extrusion adjusting mechanism

Abstract

The utility model discloses a steel belt extrusion forming side extrusion adjusting mechanism which comprises two sliding seats which are vertically symmetrical, positive and negative tooth lead screws are horizontally installed in the sliding seats, the ends, located on the same side of the sliding seats, of the two positive and negative tooth lead screws extend out of the sliding seats and are connected with synchronous wheels, and the two synchronous wheels are in transmission connection through a synchronous belt. The end part of one of the positive and negative tooth screw rods is fixedly connected with a sleeve; two sliding blocks which are in bilateral symmetry and are in threaded connection with the positive and negative tooth lead screws are slidably connected into the sliding seats, two side extrusion rollers are vertically arranged between the two sliding seats, and the sliding blocks are fixedly installed at the upper ends and the lower ends of the side extrusion rollers. The side extrusion rollers are installed on the upper sliding block and the lower sliding block, the sleeve is rotated, the two positive and negative tooth lead screws are driven by the synchronous wheel and the synchronous belt to rotate forwards or turn over synchronously, the two sets of sliding blocks get close to or get away from each other, and the effect that the two side extrusion rollers are synchronously adjusted to get close to or get away from each other is achieved; the purpose of changing the extrusion distance and force of the steel belt according to needs is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe production, in particular to a side extrusion adjusting mechanism for steel strip extrusion forming. Background Technique

[0002] The production of stainless steel pipes mainly includes steel strip slitting, side extrusion forming, welding, grinding and polishing, and fixed-length slitting, that is, steel coils can be processed into steel pipes. Among them, the step of steel pipe forming is particularly important. Through a plurality of side extrusion rollers with gradually decreasing spacing, the flat steel strip is gradually side-extruded and bent, and cooperated with the extrusion rollers above and below, it is extruded into a circular tube.

[0003] At present, most of the side extrusion rollers on the production line are side extrusion rollers with fixed positions, that is, the roller shafts of the side extrusion rollers are fixed on the frame, and the steel strip is side-extruded by the rotating roller drums. The spacing between the side extrusion rollers with different extrusion amplitudes is different, and the spacing between the same group of side extrusion rollers is fixed. Since the side extrusion rollers are in direct contact with the stainless steel strip and are continuously extruded and worn, when the side extrusion rollers are worn and the groove radius increases to a certain extent, new side extrusion rollers need to be replaced to prevent incomplete extrusion from affecting the forming of steel pipes.

[0004] However, the wear of the side extrusion rollers is a continuous process. Before replacement, wear has already occurred. Since the spacing cannot be adjusted smaller, the welding strength of the subsequent steel strip seams decreases due to the wear of the side extrusion rollers. Therefore, a side extrusion adjusting mechanism for steel strip extrusion forming that can adjust the spacing of the side extrusion rollers is proposed. Content of the Utility Model

[0005] Aiming at the deficiencies of the existing technology, the utility model provides a side extrusion adjusting mechanism for steel strip extrusion forming, which is used to solve the problem that most of the side extrusion rollers on the current stainless steel pipe production line have fixed positions and cannot adjust the spacing.

[0006] To solve the above technical problems, the utility model provides the following technical solutions:

[0007] A side extrusion adjusting mechanism for steel strip extrusion forming, including two symmetrically arranged sliding seats up and down. The two sliding seats are fixed by a screw rod and a nut. A left-right threaded screw rod is horizontally installed in the sliding seat. The ends of the two left-right threaded screw rods on the same side of the sliding seat extend out of the sliding seat and are connected to synchronous pulleys. The two synchronous pulleys are connected by a synchronous belt. The end of one of the left-right threaded screw rods is fixedly connected with a sleeve;

[0008] Two symmetrically arranged sliders are slidably connected in the sliding seat and are both threadedly connected to the left-right threaded screw rod. Two side extrusion rollers are vertically arranged between the two sliding seats. The sliders are fixedly installed at the upper and lower ends of the side extrusion rollers. A steel strip is extruded between the two side extrusion rollers.

[0009] Preferably, fixing seats are arranged on both sides of the two sliding seats, and the screw rod and nut for fixing the sliding seats are installed on the fixing seats.

[0010] Preferably, the size of the fixing seat located below is larger than that of the fixing seat located above.

[0011] Preferably, the sleeve is fixedly connected to the end of the left - right hand thread screw rod located above.

[0012] Preferably, the sleeve and the synchronous pulley are located at the same end of the left - right hand thread screw rod.

[0013] Preferably, a support spring is movably sleeved on the left - right hand thread screw rod and supported between the two sliders.

[0014] Compared with the prior art, the present utility model has the following beneficial effects:

[0015] In the present utility model, by installing the side extrusion rollers on the upper and lower sliders, rotating the sleeve, and driving the two left - right hand thread screw rods to rotate forward or reverse synchronously through the synchronous pulley and synchronous belt, the mutual approach and separation of the two groups of sliders are completed, achieving the effect of synchronously adjusting the mutual approach or separation of the two side extrusion rollers. And through the elastic force of the support spring, the pressure between the slider and the left - right hand thread screw rod is increased to form frictional self - locking, realizing the purpose of being able to change the extrusion distance and force on the steel strip as needed, and solving the problem that most of the side extrusion rollers on the current stainless steel pipe production line are fixed in position and unable to adjust the spacing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a schematic diagram of the internal structure of the present utility model;

[0018] Figure 3 is a side view of the present utility model.

[0019] In the figure: 1, sliding seat; 2, left - right hand thread screw rod; 3, synchronous pulley; 4, synchronous belt; 5, sleeve; 6, slider; 7, side extrusion roller; 8, steel strip; 9, fixing seat; 10, support spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0021] AsFigures 1 - 3 As shown in the figure, the utility model provides a technical solution: a side extrusion adjustment mechanism for steel strip extrusion forming, including two symmetrically arranged sliding seats 1 up and down. The two sliding seats 1 are fixed by screws and nuts. Fixed seats 9 are arranged on both sides of the two sliding seats 1. The fixed seats 9 and the sliding seats 1 are of an integral structure. The screws and nuts for fixing the sliding seats 1 are installed on the fixed seats 9, and can be disassembled and the vertical distance can be adjusted. The size of the fixed seat 9 located below is larger than the size of the fixed seat 9 located above, and is used for fixing on the frame of the production line.

[0022] A left - right threaded screw rod 2 is horizontally installed in the sliding seat 1. The ends of the two left - right threaded screw rods 2 on the same side of the sliding seat 1 extend out of the sliding seat 1 and are connected to synchronous pulleys 3. The two synchronous pulleys 3 are connected by a synchronous belt 4. One end of one of the left - right threaded screw rods 2 is fixedly connected to a sleeve 5. The sleeve 5 is fixedly connected to the end of the left - right threaded screw rod 2 located above. The sleeve 5 and the synchronous pulley 3 are located at the same end of the left - right threaded screw rod 2, which is convenient for turning the sleeve 5, and it is more labor - saving to turn the sleeve 5, the synchronous pulley 3 and the synchronous belt 4.

[0023] Two sliders 6 that are symmetrically arranged left and right and are both threadedly connected to the left - right threaded screw rod 2 are slidably connected in the sliding seat 1. A support spring 10 that supports between the two sliders 6 is movably sleeved on the left - right threaded screw rod 2. The elastic force of the support spring 10 increases the pressure between the slider 6 and the left - right threaded screw rod 2 to form frictional self - locking. Two side extrusion rollers 7 are vertically arranged between the two sliding seats 1. The sliders 6 are fixedly installed at the upper and lower ends of the side extrusion rollers 7. A steel strip 8 is extruded between the two side extrusion rollers 7.

[0024] Working principle: According to the width of the interface of the steel strip 8, it is judged whether the distance between the two side extrusion rollers 7 is too large or too small. Turn the sleeve 5. The sleeve 5 drives the two left - right threaded screw rods 2 to rotate forward or reverse synchronously through the synchronous pulley 3 and the synchronous belt 4, so as to drive the two groups of sliders 6 to approach or move away from each other, realizing the approach or separation of the two side extrusion rollers 7. The elastic force of the support spring 10 increases the pressure between the slider 6 and the left - right threaded screw rod 2 to form frictional self - locking to prevent loosening. As the wear of the side extrusion rollers 7 increases, turn the sleeve 5 to drive the two side extrusion rollers 7 to approach each other, increasing the extrusion force and effect on the steel strip 8, and ensuring that the joint size of the steel strip 8 is within a reasonable range.

Claims

1. A steel strip extrusion molding side extrusion adjustment mechanism, characterized in that: The invention comprises two upper and lower symmetrical slide seats (1), the two slide seats (1) are fixed by screw rods and nuts, a positive and negative threaded rod (2) is horizontally installed in the slide seat (1), the ends of the two positive and negative threaded rods (2) located on the same side of the slide seat (1) extend out of the slide seat (1) and are connected to a synchronous wheel (3), the two synchronous wheels (3) are connected by a synchronous belt (4), and a sleeve (5) is fixedly connected to the end of one of the positive and negative threaded rods (2); The slide seat (1) is slidably connected to two left-right symmetrical sliders (6) both of which are threadedly connected to the positive and negative threaded rods (2); two side extrusion rollers (7) are vertically arranged between the two slide seats (1); the slider (6) is fixedly mounted on the upper and lower ends of the side extrusion rollers (7); and a steel belt (8) is extruded between the two side extrusion rollers (7).

2. The steel strip extrusion molding side extrusion adjustment mechanism according to claim 1, characterized in that: Fixed seats (9) are provided on both sides of the two slide seats (1), and screw rods and nuts for fixing the slide seats (1) are installed on the fixed seats (9).

3. The steel strip extrusion molding side extrusion adjustment mechanism according to claim 2, characterized in that: The size of the fixing seat (9) located at the bottom is larger than the size of the fixing seat (9) located at the top.

4. The steel strip extrusion molding side extrusion adjustment mechanism according to claim 1, characterized in that: The sleeve (5) is fixedly connected to the ends of the positive and negative threaded rods (2) located above.

5. The steel strip extrusion molding side extrusion adjustment mechanism according to claim 1, characterized in that: The sleeve (5) and the synchronous wheel (3) are located at the same end of the positive and negative threaded rods (2).

6. The steel strip extrusion molding side extrusion adjustment mechanism according to claim 1, characterized in that: A support spring (10) supported between two slide blocks (6) is movably sleeved on the forward and reverse threaded rods (2).

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