CN221754324U - A mandrel support frame with built-in adjustable pull rod - Google Patents

Abstract

The utility model belongs to the technical field of mandrel support frames, and is particularly a mandrel support frame with a built-in adjustable pull rod, comprising a frame, a mounting seat is provided at one end of a rotating plate, a support roller is provided at one side of the mounting seat, a slide groove is provided at the bottom of the frame, a slide rod is provided inside the slide groove, a thread is provided on the outer surface of the rear end of the slide rod, a fixed seat is provided outside the thread, a cavity is provided inside the support roller, a plug rod is provided inside the cavity, a first fixing ring is provided outside the middle section of the plug rod, a first spring is provided on one side of the first fixing ring, two groups of clamping blocks are provided at the bottom of the cavity, a second fixing ring is provided outside the middle section of the clamping block, a second spring is provided on one side of the second fixing ring, a mounting groove is provided inside the mounting seat, and clamping grooves are provided on both sides of the mounting groove. The utility model can enable the device to support mandrels of different sizes by providing a slide rod and a connecting rod; and can make the installation and disassembly of the support roller simpler and faster by providing a clamping groove and a cavity.

Description

A mandrel support frame with built-in adjustable pull rod

Technical Field

The utility model relates to the technical field of a core rod supporting frame, in particular to a core rod supporting frame with a built-in adjustable pull rod.

Background Art

The limited mandrel continuous tube mill is the most widely used tube-making unit in the current hot-rolled seamless steel tube production method; this type of unit uses multiple rollers on multiple continuous tube mill frames and mandrels with controlled moving speeds to form multiple fixed hole types to produce hot-rolled rough tubes with a certain wall thickness and outer diameter. In the limited mandrel continuous tube mill, the mandrel, as a deformation tool in the steel tube rolling process, not only affects the dimensional accuracy of the steel tube, but its surface quality also plays a decisive role in the inner surface quality of the steel tube. The mandrel needs to be supported during the tube rolling process, and a mandrel support frame is required.

The prior art has the following problems:

1. The existing support frame cannot support mandrels of different sizes;

2. The installation and disassembly of the support rollers of the existing support frame are relatively troublesome.

Utility Model Content

In view of the deficiencies of the prior art, the utility model provides a mandrel support frame with a built-in adjustable pull rod, which solves the current problems of being unable to support mandrels of different sizes and being troublesome to install and disassemble support rollers.

To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mandrel supporting frame with a built-in adjustable pull rod comprises a frame, three groups of mounting rings are arranged on the outside of the frame, a rotating plate is arranged on the outside of the mounting ring, a mounting seat is arranged at one end of the rotating plate, a supporting roller is arranged on one side of the mounting seat, a mandrel is arranged on the inside of the supporting roller, a first connecting rod is arranged between the two left groups of rotating plates, and a second connecting rod is arranged on the outside of the two lower groups of rotating plates, a sliding groove is arranged at the bottom of the frame, a sliding rod is arranged inside the sliding groove, a sliding block is arranged at the inner end of the sliding rod, a thread is arranged on the outer surface of the rear end of the sliding rod, a fixing seat is arranged outside the thread, a cavity is arranged inside the supporting roller, a plug rod is arranged inside the cavity, a first fixing ring is arranged on the outside of the middle section of the plug rod, a first spring is arranged on one side of the first fixing ring, two groups of clamping blocks are arranged on the bottom of the cavity, a second fixing ring is arranged on the outside of the middle section of the clamping block, a second spring is arranged on one side of the second fixing ring, a mounting groove is arranged inside the mounting seat, and clamping grooves are arranged on both sides of the mounting groove.

As a preferred technical solution of the utility model, the mounting rings are provided in three groups and are fixedly connected to the outside of the frame, the rotating plates are provided in three groups and are rotatably connected to the mounting rings respectively, the mounting seat is fixedly connected to one end of the rotating plate, and the supporting roller is movably installed on one side of the mounting seat.

As a preferred technical solution of the utility model, the cavity is opened inside the support roller, the insertion rod passes through and is slidably connected to one end of the support roller, the first fixing ring is fixedly connected to the insertion rod and slidably connected to the cavity, and one end of the first spring is fixedly connected to the first fixing ring and the other end is fixedly connected to the cavity.

As a preferred technical solution of the utility model, the second fixing ring is fixedly connected to the clamping block, one end of the second spring is fixedly connected to the second fixing ring and the other end is fixedly connected to the cavity.

As a preferred technical solution of the utility model, the installation groove is provided inside the installation seat, and the clamping grooves are provided on both sides of the installation groove and are adapted to the size of the clamping block.

As a preferred technical solution of the present invention, both ends of the first connecting rod are rotatably connected to the two groups of rotating plates on the left side, and the second connecting rod is provided with two groups and one end is rotatably connected to the two groups of rotating plates below, and the other end is rotatably connected to the sliding rod.

As a preferred technical solution of the utility model, the slide groove is opened at the bottom of the frame, the slider is fixedly connected to one end of the slide rod and slidably connected to the slide groove, the thread is opened on the outer surface of the slide rod, and the fixing seat is threadedly connected to the thread.

Compared with the prior art, the utility model provides a mandrel support frame with a built-in adjustable pull rod, which has the following beneficial effects:

1. A mandrel support frame with a built-in adjustable pull rod has a slide groove at the bottom of the frame, and a slide rod is arranged inside the slide groove. The sliding slide rod can drive the second connecting rod to move so that the two sets of rotating plates below can rotate along the mounting ring. At the same time, the left rotating plate can drive the upper rotating plate to rotate synchronously through the first connecting rod, so as to achieve the effect of adjusting the spacing between the support rollers. This design enables the device to support mandrels of different sizes.

2. This mandrel support frame with a built-in adjustable pull rod has a slot inside the mounting seat and a cavity inside the support roller. Pushing the pull block inward can drive the insertion rod to slide inward. When the insertion rod slides between the two groups of blocks, the two groups of blocks can be pushed outward. The support roller can be fixed in the mounting seat by inserting the block into the slot. This design can make the installation and removal of the support roller simpler and faster.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a front view of the structure of the utility model;

Figure 2 is a schematic diagram of the structure of the slide bar of the utility model;

Figure 3 is a cross-sectional view of the support roller structure of the utility model;

FIG4 is a cross-sectional view of the mounting seat structure of the utility model.

In the figure: 1, frame; 2, mounting ring; 3, rotating plate; 4, mounting seat; 5, supporting roller; 6, core rod; 7, first connecting rod; 8, second connecting rod; 9, slide groove; 10, slide rod; 11, slider; 12, thread; 13, fixed seat; 14, cavity; 15, insertion rod; 16, pull block; 17, first fixing ring; 18, first spring; 19, clamping block; 20, second fixing ring; 21, second spring; 22, mounting groove; 23, clamping groove.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-4. In this embodiment: a mandrel support frame with a built-in adjustable pull rod includes a frame 1, three groups of mounting rings 2 are arranged on the outside of the frame 1, a rotating plate 3 is arranged on the outside of the mounting ring 2, a mounting seat 4 is arranged at one end of the rotating plate 3, a supporting roller 5 is arranged on one side of the mounting seat 4, a mandrel 6 is arranged on the inside of the supporting roller 5, a first connecting rod 7 is arranged between the two groups of rotating plates 3 on the left, a second connecting rod 8 is arranged on the outside of the two groups of rotating plates 3 below, a slide groove 9 is arranged at the bottom of the frame 1, a sliding rod 10 is arranged inside the sliding groove 9, a sliding block 11 is arranged at the inner end of the sliding rod 10, and a sliding block 11 is arranged at the inner end of the sliding block 10. A thread 12 is provided on the outer surface of the rear end of the rod 10, and a fixed seat 13 is provided on the outer side of the thread 12. A cavity 14 is provided inside the support roller 5, and an insertion rod 15 is provided inside the cavity 14. A first fixing ring 17 is provided on the outer side of the middle section of the insertion rod 15, and a first spring 18 is provided on one side of the first fixing ring 17. Two groups of clamping blocks 19 are provided on the bottom of the cavity 14, a second fixing ring 20 is provided on the outer side of the middle section of the clamping block 19, and a second spring 21 is provided on one side of the second fixing ring 20. A mounting groove 22 is provided inside the mounting seat 4, and clamping grooves 23 are provided on both sides of the mounting groove 22.

In this embodiment, the mounting ring 2 is provided with three groups and is fixedly connected to the outer side of the frame 1, the rotating plate 3 is provided with three groups and is rotatably connected to the mounting ring 2 respectively, the mounting seat 4 is fixedly connected to one end of the rotating plate 3, and the supporting roller 5 is movably installed on one side of the mounting seat 4. By rotating the rotating plate 3 along the mounting ring 2, the supporting roller 5 can be driven to rotate, so that the spacing between the supporting rollers 5 can be adjusted; the cavity 14 is opened inside the supporting roller 5, the insertion rod 15 passes through and is slidably connected to one end of the supporting roller 5, the first fixing ring 17 is fixedly connected to the insertion rod 15 and is slidably connected to the cavity 14, and the first spring 18 One end is fixedly connected to the first fixing ring 17 and the other end is fixedly connected to the cavity 14. Pushing the pull block 16 inward can drive the insertion rod 15 to slide inward. Release the pull block 16, and the first spring 18 rebounds to drive the insertion rod 15 to slide outward to the initial position through the first fixing ring 17; the second fixing ring 20 is fixedly connected to the block 19, and one end of the second spring 21 is fixedly connected to the second fixing ring 20 and the other end is fixedly connected to the cavity 14. When the insertion rod 15 slides inward to between the two groups of blocks 19, the two groups of blocks 19 can be pushed outward, and the insertion rod 15 is between the blocks 19. After being moved out, the second spring 21 rebounds and drives the block 19 to slide inward to the initial position through the second fixing ring 20; the mounting groove 22 is opened inside the mounting seat 4, and the slots 23 are opened on both sides of the mounting groove 22 and are adapted to the size of the block 19. The support roller 5 can be fixed in the mounting seat 4 by inserting the block 19 into the slot 23; the two ends of the first connecting rod 7 are respectively rotatably connected to the two groups of rotating plates 3 on the left side, and the second connecting rod 8 is provided with two groups and one end is rotatably connected to the two groups of rotating plates 3 below, and the other end is rotatably connected to the slide rod 10, and the second connecting rod 8 can be driven by sliding the slide rod 10 The connecting rod 8 moves so that the two sets of rotating plates 3 below rotate along the mounting ring 2, and at the same time, the left rotating plate 3 can drive the upper rotating plate 3 to rotate synchronously through the first connecting rod 7, so as to achieve the effect of adjusting the spacing between the support rollers 5; the slide groove 9 is opened at the bottom of the frame 1, the slider 11 is fixedly connected to one end of the slide rod 10 and is slidably connected to the slide groove 9, the thread 12 is opened on the outer surface of the slide rod 10, and the thread 12 of the fixing seat 13 is connected to the thread 12. After adjusting the spacing between the support rollers 5, the fixing seat 13 is rotated inward along the thread 12 until it is tightly fitted with the frame 1 to fix the slide rod 10 in the current position.

The working principle and use process of the utility model are as follows: the operator first pulls the pull block 16 outward, and the insertion rod 15 moves away from between the two groups of blocks 19. The second spring 21 rebounds and drives the block 19 to slide inward to the initial position through the second fixing ring 20. Then the insertion rod 15 inserts the bottom end of the cavity 14 into the mounting groove 22, releases the pull block 16, and the first spring 18 rebounds to make the first fixing ring 17 drive the insertion rod 15 to slide inward to between the two groups of blocks 19. At this time, the insertion rod 15 pushes the block 19 outward. When the block 19 is stuck in the slot 23, the support roller 5 can be fixed inside the mounting seat 4. When the support roller 5 needs to be replaced or During maintenance, pull the pull block 16 outward, and the block 19 slides inward to the initial position. At this time, the bottom end of the cavity 14 can be taken out from the mounting groove 22, and the slide bar 10 slides to the right along the slide groove 9. The second connecting rod 8 and the first connecting rod 7 drive the rotating plate 3 to rotate counterclockwise along the mounting ring 2. At this time, the spacing between the support rollers 5 increases, and then the mandrel 6 is inserted into the frame 1, and the slide bar 10 slides to the left to make the rotating plate 3 rotate clockwise. When the support roller 5 is tightly fitted with the mandrel 6, the fixing seat 13 is rotated inward until it is tightly fitted with the frame 1. At this time, the slide bar 10 can be fixed in the current position, thereby completing the support of the mandrel 6 by the support roller 5.

Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims (7)

1. A mandrel support frame with a built-in adjustable pull rod, characterized in that it comprises a frame (1), three groups of mounting rings (2) are arranged on the outside of the frame (1), a rotating plate (3) is arranged on the outside of the mounting ring (2), a mounting seat (4) is arranged at one end of the rotating plate (3), a supporting roller (5) is arranged on one side of the mounting seat (4), a mandrel (6) is arranged on the inner side of the supporting roller (5), a first connecting rod (7) is arranged between the two groups of rotating plates (3) on the left, a second connecting rod (8) is arranged on the outer side of the two groups of rotating plates (3) on the lower side, a sliding groove (9) is arranged at the bottom of the frame (1), a sliding rod (10) is arranged inside the sliding groove (9), a sliding block (11) is arranged at the inner end of the sliding rod (10), and the sliding rod (11) is arranged 0) A thread (12) is provided on the outer surface of the rear end, a fixing seat (13) is provided on the outer side of the thread (12), a cavity (14) is provided inside the support roller (5), an insertion rod (15) is provided inside the cavity (14), a first fixing ring (17) is provided on the outer side of the middle section of the insertion rod (15), a first spring (18) is provided on one side of the first fixing ring (17), two groups of clamping blocks (19) are provided on the bottom of the cavity (14), a second fixing ring (20) is provided on the outer side of the middle section of the clamping block (19), a second spring (21) is provided on one side of the second fixing ring (20), a mounting groove (22) is provided inside the mounting seat (4), and clamping grooves (23) are provided on both sides of the mounting groove (22). 2. According to claim 1, a core rod support frame with a built-in adjustable pull rod is characterized in that: the mounting ring (2) is provided with three groups and is fixedly connected to the outside of the frame (1), the rotating plate (3) is provided with three groups and is rotatably connected to the mounting ring (2), the mounting seat (4) is fixedly connected to one end of the rotating plate (3), and the supporting roller (5) is movably installed on one side of the mounting seat (4). 3. According to claim 1, a core rod support frame with a built-in adjustable pull rod is characterized in that: the cavity (14) is opened inside the support roller (5), the insertion rod (15) passes through and is slidably connected to one end of the support roller (5), the first fixed ring (17) is fixedly connected to the insertion rod (15) and slidably connected to the cavity (14), and one end of the first spring (18) is fixedly connected to the first fixed ring (17) and the other end is fixedly connected to the cavity (14). 4. A core rod support frame with a built-in adjustable pull rod according to claim 1, characterized in that: the second fixing ring (20) is fixedly connected to the block (19), and one end of the second spring (21) is fixedly connected to the second fixing ring (20) and the other end is fixedly connected to the cavity (14). 5. A mandrel support frame with a built-in adjustable pull rod according to claim 1, characterized in that: the installation groove (22) is opened inside the mounting seat (4), and the clamping groove (23) is opened on both sides of the installation groove (22) and is adapted to the size of the clamping block (19). 6. A core rod support frame with a built-in adjustable pull rod according to claim 1, characterized in that: the two ends of the first connecting rod (7) are respectively rotatably connected to the two groups of rotating plates (3) on the left, and the second connecting rod (8) is provided with two groups and one end is rotatably connected to the two groups of rotating plates (3) below, and the other end is rotatably connected to the sliding rod (10). 7. A core rod support frame with a built-in adjustable pull rod according to claim 1, characterized in that: the slide groove (9) is opened at the bottom of the frame (1), the slider (11) is fixedly connected to one end of the slide rod (10) and slidably connected to the slide groove (9), the thread (12) is opened on the outer surface of the slide rod (10), and the fixed seat (13) is threaded (12) connected to the thread (12).