Steel coil discharging machine for spiral steel pipe production

By designing a combined structure of a feeding machine base, feeding rack, and arc support plate in the spiral steel pipe production equipment, the problem of lack of protection for the coil shaft is solved, achieving effective support and safety protection for the steel coil, reducing safety hazards, and improving operational safety.

CN224147300UActive Publication Date: 2026-04-21TIANJIN TONGXINTAI STEEL PIPE MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN TONGXINTAI STEEL PIPE MFG
Filing Date
2025-05-07
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

In existing spiral steel pipe production equipment, the coil shaft lacks a protective structure, resulting in the strip steel coil being completely exposed to the working environment, posing a safety hazard and easily causing injury to workers.

Method used

Design a steel coil unloading machine for spiral steel pipe production, including a unloading machine base, an unloading frame, a bearing shaft cylinder and an arc-shaped support plate. By adjusting the cooperation of the components and the arc-shaped support plate, effective support and protection of the steel coil can be achieved, reducing the safety risks to workers.

Benefits of technology

Through reasonable structural design, direct contact between the strip steel coil and the equipment during the feeding process is effectively prevented, reducing safety hazards and improving operational safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a steel coil feeding machine for spiral steel pipe production, which comprises a feeding machine base, a feeding frame is assembled at the top end of the feeding machine base, a bearing seat is assembled at the front end of the feeding frame, and a bearing shaft barrel is assembled in the bearing seat; four mounting grooves are formed in the outer wall of the bearing shaft barrel, the included angle between every two adjacent mounting grooves is 90 degrees, an adjusting assembly is assembled in each mounting groove, and an arc-shaped supporting plate is assembled at the top end of each adjusting assembly; the four arc-shaped supporting plates are of a concentric structure, the adjusting assembly comprises a fixing cylinder, a piston cylinder, a piston rod and a reset spring, the fixing cylinder is fixed in the mounting groove, and the piston rod is inserted into the piston cylinder; according to the arrangement of the steel coil discharging machine for spiral steel pipe production, direct contact between workers and steel coils in the discharging process is reduced, and potential safety hazards are prevented.
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Description

Technical Field

[0001] This utility model relates to the field of spiral steel pipe production technology, specifically a steel coil unloading machine for spiral steel pipe production. Background Technology

[0002] Spiral welded steel pipe is a type of spiral welded steel pipe made from strip steel coils as raw material, formed by cold extrusion, and welded using an automatic double-wire double-sided submerged arc welding process. During the production of spiral welded steel pipe, the strip steel coils need to be fed into the welding pipe unit for processing using a feeding device. However, the existing equipment lacks a protective structure at the coil shaft position to limit and protect the strip steel coils, leaving them completely exposed to the working environment and posing a safety hazard during feeding.

[0003] In actual use, there is a problem that the coil shaft position is not equipped with a protective structure, which causes the strip steel coil to be completely exposed to the working environment. When the equipment discharges the material, there is a safety hazard, which can easily cause injury to the workers. Therefore, the existing technology needs to be improved. Utility Model Content

[0004] The purpose of this utility model is to provide a steel coil unloading machine for spiral steel pipe production, so as to solve the problem mentioned in the background art that there is no protective structure at the position of the coil shaft in actual use, which causes the strip steel coil to be completely exposed in the working environment, posing a safety hazard and easily causing injury to workers when the equipment unloads the material.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel coil unloading machine for spiral steel pipe production, comprising an unloading machine base, an unloading frame mounted on the top of the unloading machine base, a bearing seat mounted on the front end of the unloading frame, and a bearing cylinder mounted inside the bearing seat.

[0006] The outer wall of the bearing shaft cylinder of the spiral steel pipe production coil unloading machine is equipped with four mounting slots, and the included angle between two adjacent mounting slots is 90°. Each mounting slot is equipped with an adjustment component, and the top of the adjustment component is equipped with an arc-shaped support plate.

[0007] The four arc-shaped support plates of the spiral steel pipe production coil unloading machine are of a concentric structure;

[0008] The adjusting assembly for a spiral steel pipe production coil unloading machine includes a fixed cylinder, a piston cylinder, a piston rod, and a return spring. The fixed cylinder is fixed inside the mounting groove, and the piston rod is inserted into the piston cylinder.

[0009] The lower end of the piston rod of the spiral steel pipe production coil unloading machine is equipped with a screw rod of the spiral steel pipe production coil unloading machine. The screw rod of the spiral steel pipe production coil unloading machine is screwed into the fixed cylinder of the spiral steel pipe production coil unloading machine. The ends of the piston rod of the spiral steel pipe production coil unloading machine and the piston cylinder of the spiral steel pipe production coil unloading machine are both equipped with pressure plates of the spiral steel pipe production coil unloading machine. The lower pressure plate of the spiral steel pipe production coil unloading machine is sleeved on the outside of the screw rod of the spiral steel pipe production coil unloading machine. The return spring of the spiral steel pipe production coil unloading machine is sleeved on the outside of the piston cylinder of the spiral steel pipe production coil unloading machine and the piston rod of the spiral steel pipe production coil unloading machine, and is located between the two pressure plates of the spiral steel pipe production coil unloading machine.

[0010] As a preferred embodiment of the spiral steel pipe production coil unloading machine of this utility model, the screw of the spiral steel pipe production coil unloading machine is located on the lower side, and a nut is screwed to the lower end of the pressure plate of the spiral steel pipe production coil unloading machine. Limiting rods are installed at both ends of the fixed cylinder of the spiral steel pipe production coil unloading machine. The inner wall of the limiting rod of the spiral steel pipe production coil unloading machine has spiral teeth that cooperate with the external thread of the screw of the spiral steel pipe production coil unloading machine.

[0011] As a preferred embodiment of the spiral steel pipe production steel coil unloading machine of this utility model, the bottom end of the nut of the spiral steel pipe production steel coil unloading machine is provided with an annular groove of the spiral steel pipe production steel coil unloading machine, and the top end of the limiting rod of the spiral steel pipe production steel coil unloading machine is set inside the annular groove of the spiral steel pipe production steel coil unloading machine.

[0012] As a preferred embodiment of the spiral steel pipe production steel coil unloading machine of this utility model, the upper pressure plate of the spiral steel pipe production steel coil unloading machine is equipped with a rotating seat at the top of the spiral steel pipe production steel coil unloading machine, and the top of the rotating seat of the spiral steel pipe production steel coil unloading machine is connected to an arc-shaped support plate.

[0013] As a preferred embodiment of the spiral steel pipe production steel coil unloading machine of this utility model, the outer wall of the arc-shaped support plate of the spiral steel pipe production steel coil unloading machine is provided with a rubber pad layer.

[0014] As a preferred embodiment of the spiral steel pipe production steel coil unloading machine of this utility model, the top end of the bearing shaft cylinder of the spiral steel pipe production steel coil unloading machine is provided with a cone head.

[0015] As a preferred embodiment of the spiral steel pipe production steel coil unloading machine of this utility model, the unloading machine base is equipped with a counterweight block at the rear top of the unloading machine base, and drive wheels are equipped at the four corners of the bottom of the unloading machine base.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the setting of a steel coil unloading machine for spiral steel pipe production has a reasonable structural design;

[0017] By setting a feeding frame on the base of the feeding machine and a bearing shaft cylinder at the front end of the feeding frame, and setting four arc-shaped support plates on the outer wall of the bearing shaft cylinder, the raw material plate of the spiral steel pipe is wrapped around the outside of the four arc-shaped support plates, thereby supporting and protecting it. This reduces the direct contact between the workers and the steel coil during the feeding process and prevents safety hazards. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the four arc-shaped support plates of this utility model;

[0020] Figure 3 This is a schematic diagram of the adjustment component of this utility model;

[0021] Figure 4 This is a schematic diagram of the fixing cylinder of this utility model.

[0022] In the diagram: 1. Feeder base; 2. Bearing shaft cylinder; 3. Bearing seat; 4. Feeder frame; 5. Counterweight; 6. Drive wheel; 7. Cone head; 8. Mounting groove; 9. Adjustment assembly; 10. Arc-shaped support plate; 11. Rubber pad; 12. Return spring; 13. Piston cylinder; 14. Piston rod; 15. Rotary seat; 16. Pressure plate; 17. Nut; 18. Annular groove; 19. Screw; 20. Fixed cylinder; 21. Limiting post; 22. Helical gear. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] In this technical solution, a steel coil unloading machine for spiral steel pipe production includes an unloading machine base 1. An unloading frame 4 is mounted on the top of the unloading machine base 1, and a bearing seat 3 is mounted on the front end of the unloading frame 4. A bearing shaft cylinder 2 is mounted inside the bearing seat 3. Four mounting slots 8 are mounted on the outer wall of the bearing shaft cylinder 2, with an included angle of 90° between adjacent mounting slots 8. An adjusting component 9 is mounted inside each mounting slot 8, and an arc-shaped support plate 10 is mounted on the top of each adjusting component 9. The four arc-shaped support plates 10 are concentric. Structure; The adjusting assembly 9 includes a fixed cylinder 20, a piston cylinder 13, a piston rod 14, and a return spring 12. The fixed cylinder 20 is fixed in the mounting groove 8, and the piston rod 14 is inserted into the piston cylinder 13. A screw 19 is installed at the lower end of the piston rod 14 and is screwed into the fixed cylinder 20. Pressure plates 16 are installed at the ends of both the piston rod 14 and the piston cylinder 13, and the lower pressure plate 16 is sleeved on the outside of the screw 19. The return spring 12 is sleeved on the outside of the piston cylinder 13 and the piston rod 14 and is located between the two pressure plates 16.

[0026] In this technical solution, a feeding frame 4 is vertically installed on the front top of the feeding machine base 1. A bearing seat 3 is installed at the center of the front side wall of the feeding frame 4. The bearing cylinder 2 is installed inside the bearing seat 3. Four arc-shaped support plates 10 are provided on the outer wall of the bearing cylinder 2 to support the inner wall of the spiral steel pipe raw material coil. The arc-shaped support plates 10 can be adjusted outward or inward by adjusting component 9. The arc-shaped support plates 10 can be supported by the piston rod 14 in the piston cylinder 13 and under the action of the return spring 12. The inner wall of the fixed cylinder 20 is provided with an internal thread that mates with the screw 19, thereby fixing the screw 19 inside the fixed cylinder 20.

[0027] In some technical solutions, a nut 17 is screwed onto the lower end of the screw 19 at the lower pressure plate 16, and a limit rod 21 is installed at both ends of the fixed cylinder 20. The inner wall of the limit rod 21 is provided with helical teeth 22 that cooperate with the external thread of the screw 19.

[0028] In this technical solution, the nut 17 is moved up and down outside the screw 19, thereby squeezing the nut 17 and adjusting the extension and retraction stroke of the return spring 12.

[0029] In some technical solutions, the bottom end of the nut 17 is provided with an annular groove 18, and the top end of the limiting rod 21 is set in the annular groove 18.

[0030] In this technical solution, after the screw 19 is screwed into the fixed cylinder 20, the limiting rod 21 is locked outside the screw 19, and its top end is set in the annular groove 18, thereby limiting the nut 17.

[0031] In some technical solutions, a rotating seat 15 is installed at the top of the upper pressure plate 16, and the top of the rotating seat 15 is connected to the arc-shaped support plate 10.

[0032] In this technical solution, the arc-shaped support plate 10 can be installed.

[0033] In some technical solutions, the outer wall of the arc-shaped support plate 10 is provided with a rubber pad layer 11.

[0034] In this technical solution, the wear resistance of the surface of the arc-shaped support plate 10 can be improved by the rubber pad layer 11.

[0035] In some technical solutions, a cone 7 is provided at the top of the bearing cylinder 2.

[0036] In this technical solution, the cone head 7 can improve the guidance of the top end of the bearing shaft cylinder 2.

[0037] In some technical solutions, a counterweight 5 is installed on the rear side of the top of the feeding machine base 1, and drive wheels 6 are installed at the four corners of the bottom of the feeding machine base 1.

[0038] In this technical solution, the counterweight block 5 can be used to counterweight the base 1 of the feeding machine, and the drive wheel 6 can facilitate the overall movement.

[0039] Working principle: In use, first, according to the diameter of the spiral steel pipe raw material plate coil, adjust the position of the piston rod 14 inside the piston cylinder 13, and adjust the position of the nut 17 on the screw 19 to limit the stroke of the return spring 12. Then, screw the screw 19 into the fixing cylinder 20 to fix the arc support plate 10. Then, put the spiral steel pipe raw material plate coil on the outside of the four arc support plates 10 to protect and fix it.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0041] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A steel coil unwinder for the production of spiral steel pipes, comprising an unwinder base (1), characterized in that, The top of the feeding machine base (1) is equipped with a feeding rack (4), the front end of the feeding rack (4) is equipped with a bearing seat (3), and the bearing seat (3) is equipped with a bearing cylinder (2). The outer wall of the bearing shaft cylinder (2) is equipped with four mounting slots (8), and the included angle between two adjacent mounting slots (8) is 90°. Each mounting slot (8) is equipped with an adjustment component (9), and the top of the adjustment component (9) is equipped with an arc-shaped support plate (10). The four arc-shaped support plates (10) are concentric; The adjustment assembly (9) includes a fixed cylinder (20), a piston cylinder (13), a piston rod (14), and a return spring (12). The fixed cylinder (20) is fixed in the mounting groove (8), and the piston rod (14) is inserted into the piston cylinder (13). The lower end of the piston rod (14) is fitted with a screw (19), which is screwed into the fixed cylinder (20). Both the piston rod (14) and the piston cylinder (13) are fitted with pressure plates (16), and the lower end of the pressure plate (16) is sleeved on the outside of the screw (19). The return spring (12) is sleeved on the outside of the piston cylinder (13) and the piston rod (14) and is located between the two pressure plates (16).

2. A steel coil unwinder for the production of spiral steel pipes according to claim 1, characterized in that: The screw (19) is screwed to the lower end of the pressure plate (16) on the outside of the screw (19) with a nut (17). Limiting rods (21) are installed at both ends of the fixed cylinder (20). The inner wall of the limiting rod (21) is provided with helical teeth (22) that cooperate with the external thread of the screw (19).

3. A steel coil unwinder for the production of spiral steel pipes according to claim 2, characterized in that: The bottom end of the nut (17) is provided with an annular groove (18), and the top end of the limiting rod (21) is set in the annular groove (18).

4. A steel coil unwinder for the production of spiral steel pipes according to claim 1, characterized in that: A rotating seat (15) is installed at the top of the upper pressure plate (16), and the top of the rotating seat (15) is connected to an arc-shaped support plate (10).

5. A steel coil unwinder for the production of spiral steel pipes according to claim 1, characterized in that: The outer wall of the arc-shaped support plate (10) is provided with a rubber pad layer (11).

6. A steel coil unwinder for the production of spiral steel pipes according to claim 1, characterized in that: The top end of the bearing shaft cylinder (2) is provided with a cone head (7).

7. A steel coil unwinder for the production of spiral steel pipes according to claim 1, characterized in that: A counterweight (5) is mounted on the rear side of the top of the feeding machine base (1), and drive wheels (6) are mounted at the four corners of the bottom of the feeding machine base (1).