WO2021134391A1

WO2021134391A1 - Heavy-duty uncoiling machine reel having large expanding/contracting diameter

Info

Publication number: WO2021134391A1
Application number: PCT/CN2019/130279
Authority: WO
Inventors: 冷志斌; 杨建军; 张冠军; 陈磊; 盛川野
Original assignee: 江苏亚威机床股份有限公司
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-07-08

Abstract

A heavy-duty uncoiling machine reel having a large expanding/contracting diameter, comprising a main shaft (1), an arch-shaped plate (2), a sliding block (3), and a pull rod (4). The pull rod (4) is located in a central hole of the main shaft (1). An expanding/contracting cylinder (5) is provided on the left end of the main shaft (1), and is connected to the left end of the pull rod (4). Axially arranged dovetail grooves are uniformly distributed on the radial outer surface of the main shaft (1). The inner end of the sliding block (3) is slidably connected to the dovetail grooves. The right end of the sliding block (3) is connected to a connecting plate (6) sleeved on the pull rod (4). A fastening nut (7) connected to the pull rod (4) is provided on the right side of the connecting plate (6). Several inclined wedges (8) are provided on the outer end of the sliding block (3). The arch-shaped plate (2) covers the inclined wedges (8). Inclined wedge recesses (9) matching the inclined wedges (8) are provided on the inner surface of the arch-shaped plate (2). Inclined dovetail grooves are provided on the inner end of the inclined wedge recesses (9). The outer ends of the inclined wedges (8) are slidably connected to the inclined dovetail grooves. A disc sliding seat (10) fixedly connected to the main shaft (1) is provided on the left end of the arch-shaped plate (2). A radial guide recess is provided on the outer surface of the disc sliding seat (10). A guide block (11) matching the guide recess is provided on the left end of the arch-shaped plate (2). The uncoiling machine reel is simple in structure, has a large bearing capacity, can freely expand and contract the diameter of the reel, meets different reel requirements, and reduces the labor intensity of operators.

Description

Reel of heavy-load, large-expansion and shrink-diameter decoiler

Technical field

The invention relates to a reel, in particular to a reel of a heavy-duty large expansion-reduction decoiler.

Background technique

The decoiler is an indispensable equipment for the cold rolling continuous stripping, slitting, cross-cutting, leveling, welding, pickling and other thin plate production lines. It is arranged at the front end of the continuous stripping unit entrance. The original cantilever decoiler adopts an assembled wedge and sliding seat structure. The rigidity of the main shaft and the bow plate is poor. The bearing limit is 12 tons, and the weight of the coil is under 12 tons. The support shafts of these general structures can fully meet this kind of work. Claim. Nowadays, when uncoiling large-tonnage coils, the double-head decoiler is usually used for uncoiling, but the double-head decoiler cannot solve the damage to the inner layer of the steel coil due to the short reel shaft and the short load-bearing surface of the reel, especially the uncoiling In the last few laps, the distortion caused by insufficient rigidity of the steel ring itself cannot be corrected. In order to meet different diameters of the reel of the existing decoiler, a diameter-increasing sleeve is basically used, and a rubber sleeve or a steel sleeve is required to complete the change of the diameter of the reel, and the labor intensity of workers is high.

Summary of the invention

In view of the above-mentioned defects, the purpose of the present invention is to provide a heavy-duty large-diameter uncoiler reel with simple structure, convenient operation, high overall strength, free expansion and contraction in diameter, and meeting different reel diameters.

To this end, the technical solution adopted by the present invention is:

It includes a main shaft, an arcuate plate, a sliding block and a pull rod. The pull rod is located in the central hole of the main shaft. The left end of the main shaft is provided with an expansion and contraction cylinder. The expansion and contraction cylinder is connected to the left end of the pull rod. The radial outer surface of the main shaft is evenly distributed with dovetails arranged in the axial direction. The inner end of the slider is slidably connected with the dovetail groove, the right end of the slider is connected with a connecting plate sleeved on the pull rod, the right side of the connecting plate is provided with a lock nut connected with the pull rod, and the outer end of the slider is provided with a number of inclined wedges, The arcuate plate covers the oblique wedge. The inner surface of the arcuate plate is provided with an oblique wedge groove that matches the oblique wedge. The inner end of the oblique wedge groove is provided with an oblique dovetail groove. The outer end of the oblique wedge is slidingly connected with the oblique dovetail groove. The left end of the plate is provided with a disc sliding seat fixedly connected with the main shaft, the outer surface of the disc sliding seat is provided with a radial guide groove, and the left end of the arcuate plate is provided with a guide block matched with the guide groove.

As a further improvement of the above technical solution, a connecting frame is provided between the main shaft and the expansion and contraction cylinder, and the left end of the main shaft is fixedly connected with the connecting frame.

As a further improvement of the above technical solution, the inner walls of both ends of the central hole of the main shaft are provided with copper sleeves sleeved on the pull rods.

As a further improvement of the above technical solution, the radial guide groove is a T-shaped radial guide groove, the guide block is a T-shaped guide block, the outer end surface of the arcuate plate is provided with a mounting groove, and the end of the T-shaped guide block is located at Install the groove and fix the connection.

As a further improvement of the above technical solution, the upper end surface of the guide block is lower than the outer surface of the arcuate plate. As a further improvement of the above technical solution, the central part of the main shaft is provided with a radial boss, and the left end surface of the disc sliding seat is in contact with the right end surface of the radial boss and is connected by screws.

The advantages of the present invention are:

The invention has simple structure and convenient operation. By adopting the structure of the invention, the overall strength is high, and it has a large bearing capacity. It can freely expand and contract the diameter of the reel, meet the requirements of different reels, has strong applicability, and reduces the labor of workers. strength.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the present invention.

Figure 2 is a schematic diagram of the structure of the slider.

Figure 3 is a schematic diagram of the structure of the arcuate plate.

Fig. 4 is a partial enlarged view of A in Fig. 1.

Fig. 5 is a cross-sectional view of B-B in Fig. 1.

Fig. 6 is a view from the direction C in Fig. 1.

In the figure, 1 is the main shaft, 2 is the arcuate plate, 3 is the slider, 4 is the tie rod, 5 is the expansion and contraction cylinder, 6 is the connecting plate, 7 is the lock nut, 8 is the oblique wedge, 9 is the oblique wedge groove, 10 It is a disc sliding seat, 11 is a guide block, 12 is a connecting frame, 13 is a copper sleeve, and 14 is a radial boss.

Detailed ways

A heavy-load large expansion and shrinkage decoiler reel, comprising a main shaft 1, an arcuate plate 2, a sliding block 3, and a pull rod 4. The pull rod 4 is located in the central hole of the main shaft 1. An expansion and contraction oil cylinder 5 is provided at the left end of the main shaft 1. The oil shrinking cylinder 5 is connected with the left end of the tie rod 4, the radial outer surface of the main shaft 1 is uniformly distributed with dovetail grooves arranged in the axial direction, the inner end of the slider 3 is slidingly connected with the dovetail groove, and the right end of the slider 3 is connected with a connection sleeved on the tie rod 4. The right side of the connecting plate 6 is provided with a lock nut 7 connected to the tie rod 4. The outer end of the slider 3 is provided with a number of diagonal wedges 8, the arcuate plate 2 covers the diagonal wedges 8, and the inner surface of the arcuate plate 2 is provided There is an oblique wedge groove 9 matched with the oblique wedge block 8. The inner end of the oblique wedge groove 9 is provided with an oblique dovetail groove, the outer end of the oblique wedge block 8 is slidingly connected with the oblique dovetail groove, and the left end of the arcuate plate 2 is provided with a fixed connection with the spindle 1 The outer surface of the disc slide 10 is provided with a radial guide groove, and the left end of the arcuate plate 2 is provided with a guide block 11 that matches the guide groove.

As a further improvement of the above technical solution, a connecting frame 12 is provided between the main shaft 1 and the expansion and contraction cylinder 5, and the left end of the main shaft 1 is fixedly connected with the connecting frame 12.

As a further improvement of the above technical solution, the inner walls of the two ends of the central hole of the main shaft 1 are provided with copper sleeves 13 sleeved on the pull rod 4.

As a further improvement of the above technical solution, the radial guide groove is a T-shaped radial guide groove, the guide block 11 is a T-shaped guide block, and the outer end surface of the arcuate plate 2 is provided with a mounting groove. The end is located in the installation slot and fixedly connected.

As a further improvement of the above technical solution, the upper end surface of the guide block 11 is lower than the outer surface of the arcuate plate. As a further improvement of the above technical solution, a radial boss 14 is provided in the middle of the main shaft 1, and the left end surface of the disc slide 10 is in contact with the right end surface of the radial boss 14 and is connected by screws.

It should be emphasized that the above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the description and drawings of the present invention, or direct or indirect use In other related technical fields, the same is included in the scope of patent protection of the present invention.

Claims

A heavy-load large expansion and reduction decoiler drum, which is characterized by comprising a main shaft, an arcuate plate, a sliding block and a pull rod. The pull rod is located in the central hole of the main shaft. The left end of the main shaft is provided with an expansion and contraction oil cylinder, an expansion and contraction oil cylinder and a pull rod. The left end is connected, the radial outer surface of the main shaft is evenly distributed with dovetail grooves arranged along the axial direction, the inner end of the slider is slidingly connected with the dovetail groove, the right end of the slider is connected with a connecting plate sleeved on the tie rod, and the right side of the connecting plate is provided with a tie rod For the connecting lock nut, a number of oblique wedges are arranged at the outer end of the slider, the arcuate plate covers the oblique wedge, the inner surface of the arcuate plate is provided with an oblique wedge groove that matches the oblique wedge, and the inner end of the oblique wedge groove is provided with Oblique dovetail groove, the outer end of the oblique wedge block is slidingly connected with the oblique dovetail groove, the left end of the arcuate plate is provided with a disc sliding seat fixedly connected with the main shaft, the outer surface of the disc sliding seat is provided with a radial guide groove, and the left end of the arcuate plate is provided with Guide block matched with guide groove.
The heavy-duty large expansion and contraction decoiler drum according to claim 1, wherein a connecting frame is provided between the main shaft and the expansion and contraction cylinder, and the left end of the main shaft is fixedly connected with the connection frame.
The heavy-load large-expansion-reduction decoiler reel according to claim 1, wherein the inner walls of both ends of the central hole of the main shaft are provided with copper sleeves sleeved on the tie rods.
The heavy-duty large-expansion-reduction decoiler reel according to claim 1, wherein the radial guide groove is a T-shaped radial guide groove, the guide block is a T-shaped guide block, and the The outer end surface of the arcuate plate is provided with a mounting groove, and the end of the T-shaped guide block is located in the mounting groove and fixedly connected.
The heavy-load large-expansion-reduction decoiler reel according to claim 4, wherein the upper end surface of the guide block is lower than the outer surface of the arcuate plate.
A heavy-duty large-expansion-reduction decoiler reel according to claim 1, wherein the central part of the main shaft is provided with a radial boss, and the left end surface of the disc slide is connected to the right of the radial boss. The side ends are in contact and connected by screws.