An automatic centering positioning mechanism for a roller changing trolley

Abstract

The utility model relates to short stress rolling mill auxiliary equipment technical field discloses a kind of automatic centering positioning mechanism for roll changing trolley, including bottom plate;For the buffer component of roll changing trolley;For the positioning and locking of roll changing trolley guiding, positioning push component;And the adjustable mounting plate of connecting bottom plate, adjustable mounting plate, buffer component;The positioning push component is divided into left and right two parts, and the adjustable mounting plate is provided with three, the position of mounting bracket is adjusted by cylinder two, and the position of push plate is further adjusted, so that push plate can contact with the side of roll changing trolley, then push roll changing trolley to center, and the push plate on left and right two vertical boards can push roll changing trolley from left and right two directions, ensure the accuracy of centering positioning, by energized magnet group after energization, roll changing trolley is attracted, so that after centering positioning, roll changing trolley cannot easily move, and further ensure stability in roll changing process.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for short-stress rolling mills, specifically an automatic centering and positioning mechanism for a roll changing trolley. Background Technology

[0002] Short-stress rolling mills are widely used in the production of metals such as bars and wires due to their short rolling force transmission path, high rigidity, and excellent rolling accuracy. After mill maintenance or roll wear, the old rolls need to be removed and new rolls need to be fed in via a roll changing trolley. The alignment accuracy between the roll changing trolley and the mill body directly determines the efficiency of roll disassembly and assembly and the subsequent rolling accuracy.

[0003] The positioning of roll changing trolleys in existing short-stress rolling mills mostly adopts manual assisted positioning or simple mechanical limiting structures: manual positioning requires operators to observe with their eyes and manually adjust the position of the trolley, which is not only inefficient, but also the positioning accuracy is easily affected by human factors, leading to jamming, collisions, or even damage to the mill bearings or rolls during roll disassembly and assembly; simple mechanical limiting (such as stops, positioning pins) are simple in structure, but after long-term use, the limiting accuracy is easily reduced due to wear, and they cannot adapt to the positioning adjustment requirements when changing rolls of different specifications, resulting in poor versatility. Utility Model Content

[0004] The purpose of this invention is to provide an automatic centering and positioning mechanism for a roll changing trolley, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic centering and positioning mechanism for a roll changing trolley, comprising a base plate;

[0006] Buffer components used to catch the roller changing trolley;

[0007] Positioning and pushing components used to guide, position, and lock the roller changing trolley;

[0008] And the adjustable mounting plate that connects the base plate, the adjustable mounting plate, and the buffer components;

[0009] The positioning and pushing component is divided into left and right parts. There are three adjustable mounting plates. The tops of the left and right adjustable mounting plates are connected to the positioning and pushing component, and the top of the middle adjustable mounting plate is connected to the positioning and pushing component. The adjustable mounting plates are detachably connected to the base plate by bolts.

[0010] Furthermore, the buffer component includes a cylinder, which is fixedly installed on the top of the intermediate adjustable mounting plate. A lifting plate is fixedly installed on the telescopic end of the cylinder, and a mounting seat is fixedly installed on the top of the lifting plate. A buffer shock absorber is fixedly installed on the mounting seat. Two buffer shock absorbers are provided. A hinge seat is fixedly installed on the movable end of the buffer shock absorber. A connecting plate is fixedly connected to the other end of the hinge seat. A connecting plate is fixedly installed on the outer wall of the connecting plate on the side facing away from the hinge seat.

[0011] Furthermore, the buffer shock absorber includes a fixed cylinder, which is fixedly connected to the mounting base. A sliding plate is slidably disposed inside the fixed cylinder. A movable rod is fixedly connected to one side of the sliding plate, and a damper and a spring are connected to the other side. The movable rod extends out from inside the fixed cylinder and is fixedly connected to the hinge seat. The end of the damper and spring away from the sliding plate is fixedly connected to the inner wall of the fixed cylinder.

[0012] Furthermore, a limiting ring is slidably sleeved on the outer wall of the movable rod, the limiting ring is fixedly installed in the port of the fixed cylinder, a limiting groove is opened on the outer wall of the movable rod, and the protrusion on the inner side of the limiting ring is slidably disposed in the limiting groove.

[0013] Furthermore, a guide ring is fixedly installed on the inner wall of the lifting plate, and a guide rod is slidably arranged inside the guide ring. The bottom end of the guide rod is fixedly connected to the top of the middle adjustable mounting plate.

[0014] Furthermore, the positioning and pushing component includes two upright plates, which are respectively fixedly mounted on the top of two adjustable mounting plates on the left and right. A second cylinder is fixedly mounted on the side of the upright plate, and a mounting frame is fixedly mounted on the telescopic end of the second cylinder. An electromagnet assembly, a position sensing component, and a pushing plate are fixedly mounted on the mounting frame. The electromagnet assembly and the pushing plate are both facing the front of the upright plate, and a roller is rotatably mounted inside the pushing plate.

[0015] Furthermore, the position sensing component includes a protective housing, which is fixedly mounted on a mounting bracket. A proximity switch is provided inside the protective housing. A through slot is provided at the front end of the protective housing. A disassembly plate is provided on the inner wall of the protective housing to block the through slot.

[0016] Furthermore, a guide ring two is fixedly installed on the inner wall of the upright plate, and a guide rod two is slidably arranged inside the guide ring two, with one end of the guide rod two being fixedly connected to the outer wall of the mounting frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. Adjust the position of the mounting bracket by cylinder two, and then adjust the position of the push plate so that the push plate can contact the side of the roll changing trolley. Then push the roll changing trolley to center it, and the push plates on the left and right vertical plates can push the roll changing trolley from the left and right directions to ensure the accuracy of the centering positioning. The energized electromagnet group holds the roll changing trolley so that the roll changing trolley will not move easily after centering positioning, thus ensuring the stability during the roll changing process. Rollers are set to reduce the friction force on the roll changing trolley during movement. Position sensing components are set to determine whether the roll changing trolley has reached the working area.

[0019] 2. A silicone pad is set up for primary buffering and shock absorption, and a shock absorber is used for secondary buffering and shock absorption to ensure the buffering and shock absorption effect. Since the connecting plate is connected to the shock absorber through a hinge seat, when the roller changing trolley collides with the silicone pad, the connecting plate can change position and angle under force, so that the silicone pad can make as much contact as possible with the surface of the roller changing trolley, thus ensuring the buffering and shock absorption effect. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This utility model Figure 1 Structural diagram of the rear view;

[0022] Figure 3 This is a schematic diagram of the structure of the buffer component of this utility model;

[0023] Figure 4 This is a structural schematic diagram of the top cross-sectional view of the shock absorber of this utility model;

[0024] Figure 5 This is a schematic diagram of the positioning and pushing component of this utility model;

[0025] Figure 6 This is a structural schematic diagram of the top cross-sectional view of the protective shell of this utility model.

[0026] In the diagram: 1. Base plate; 2. Adjustable mounting plate; 3. Buffer component; 301. Cylinder 1; 302. Lifting plate; 303. Mounting seat; 304. Buffer shock absorber; 305. Hinge seat; 306. Connecting plate; 307. Silicone pad; 3041. Fixed cylinder; 3042. Sliding plate; 3043. Movable rod; 3044. Damper; 3045. Spring; 4. Positioning and pushing component; 401. Vertical plate; 402. Cylinder 2; 403. Mounting bracket; 404. Electromagnet assembly; 405. Position sensing component; 406. Push plate; 407. Roller; 4051. Protective housing; 4052. Proximity switch; 4053. Disassembly plate; 5. Guide rod 1; 6. Guide ring 1; 7. Limit ring; 8. Limit groove; 9. Guide rod 2; 10. Guide ring 2. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] Please see Figures 1-6 This utility model provides a technical solution: an automatic centering and positioning mechanism for a roll changing trolley, including a base plate 1;

[0029] Buffer component 3 is used to catch the roller changing trolley;

[0030] Positioning and pushing components 4 are used to guide, position and lock the roller changing trolley;

[0031] And the adjustable mounting plate 2 that connects the base plate 1, the adjustable mounting plate 2, and the buffer component 3;

[0032] The positioning and pushing component 4 is divided into left and right parts. There are three adjustable mounting plates 2. The tops of the two left and right adjustable mounting plates 2 are connected to the positioning and pushing component 4, and the top of the middle adjustable mounting plate 2 is connected to the positioning and pushing component 4. The adjustable mounting plates 2 are detachably connected to the base plate 1 by bolts. Because the adjustable mounting plates 2 are connected to the base plate 1 by bolts, the position of the adjustable mounting plates 2 can be adjusted, thereby adjusting the position of the buffer component 3 and the positioning and pushing component 4 to match the roller changing trolley. At the same time, the distance between the left and right positioning and pushing components 4 can also be adjusted, thereby adjusting the guiding and positioning range to match different roller changing trolleys.

[0033] The buffer component 3 includes a cylinder 301, which is fixedly mounted on the top of the intermediate adjustable mounting plate 2. A lifting plate 302 is fixedly mounted on the telescopic end of the cylinder 301. A mounting base 303 is fixedly mounted on the top of the lifting plate 302. A buffer shock absorber 304 is fixedly mounted on the mounting base 303. Two buffer shock absorbers 304 are provided. A hinge seat 305 is fixedly mounted on the movable end of the buffer shock absorber 304. A connecting plate 306 is fixedly connected to the other end of the hinge seat 305. A connecting plate 306 is fixedly mounted on the outer wall of the side of the connecting plate 306 facing away from the hinge seat 305. The cylinder 301... 301 drives the lifting plate 302 to rise and fall, thereby adjusting the height of the structure on the lifting plate 302 so that the silicone pad 307 can be aligned with the front of the roll changing trolley. The silicone pad 307 is set to provide primary buffering and shock absorption, and the buffer shock absorber 304 provides secondary buffering and shock absorption to ensure the buffering and shock absorption effect. Since the connecting plate 306 is connected to the buffer shock absorber 304 through the hinge seat 305, when the roll changing trolley collides with the silicone pad 307, the connecting plate 306 can change position and angle under force, thereby allowing the silicone pad 307 to contact the surface of the roll changing trolley as much as possible to ensure the buffering and shock absorption effect.

[0034] The shock absorber 304 includes a fixed cylinder 3041, which is fixedly connected to a mounting base 303. A sliding plate 3042 is slidably disposed inside the fixed cylinder 3041. A movable rod 3043 is fixedly connected to one side of the sliding plate 3042, and a damper 3044 and a spring 3045 are connected to the other side. The movable rod 3043 extends out from the fixed cylinder 3041 and is fixedly connected to a hinge base 305. The ends of the damper 3044 and the spring 3045 away from the sliding plate 3042 are... The fixed cylinder 3041 is fixedly connected to the inner wall of the fixed cylinder 3041. The fixed cylinder 3041 is used to install the sliding plate 3042, the damper 3044, and the spring 3045. The sliding plate 3042 is connected to and guides the movable rod 3043. After the impact is transmitted from the hinge seat 305 to the movable rod 3043, the movable rod 3043 can move to drive the sliding plate 3042 to move, thereby squeezing or stretching the damper 3044 and the spring 3045. The spring 3045 is used for buffering, and the damper 3044 is used for shock absorption.

[0035] A limiting ring 7 is slidably sleeved on the outer wall of the movable rod 3043. The limiting ring 7 is fixedly installed in the port of the fixed cylinder 3041. A limiting groove 8 is opened on the outer wall of the movable rod 3043. The protrusion on the inner side of the limiting ring 7 is slidably set in the limiting groove 8. The limiting ring 7 and the limiting groove 8 guide the movable rod 3043 so that the movable rod 3043 can only slide relative to the fixed cylinder 3041 and cannot rotate relative to the fixed cylinder 3041.

[0036] A guide ring 6 is fixedly installed on the inner wall of the lifting plate 302. A guide rod 5 is slidably installed inside the guide ring 6. The bottom end of the guide rod 5 is fixedly connected to the top of the middle adjustable mounting plate 2. The guide ring 6 and the limiting ring 7 are used to guide and limit the lifting plate 302 in the vertical direction, so that the lifting plate 302 can only be lifted vertically.

[0037] The positioning and pushing component 4 includes two upright plates 401, which are respectively fixedly mounted on the tops of the left and right adjustable mounting plates 2. A second cylinder 402 is fixedly mounted on the side of the upright plate 401. A mounting bracket 403 is fixedly mounted on the telescopic end of the second cylinder 402. An electromagnet assembly 404, a position sensing component 405, and a push plate 406 are fixedly mounted on the mounting bracket 403. The electromagnet assembly 404 and the push plate 406 all face the front of the upright plate 401. A roller 407 is rotatably mounted inside the push plate 406. The position of the mounting bracket 403 is adjusted by the second cylinder 402, thereby... The position of the push plate 406 is adjusted so that it can contact the side of the roller changing trolley. Then, the roller changing trolley is pushed to the center, and the push plates 406 on the two vertical plates 401 on the left and right can push the roller changing trolley from the left and right directions to ensure the accuracy of the centering position. The roller changing trolley is attracted by the energized electromagnet group 404 so that it will not move easily after being centered, thus ensuring the stability during the roller changing process. Rollers 407 are set to reduce the friction force on the roller changing trolley during movement. Position sensing component 405 is set to determine whether the roller changing trolley has reached the working area.

[0038] The position sensing component 405 includes a protective housing 4051, which is fixedly mounted on a mounting bracket 403. A proximity switch 4052 is disposed inside the protective housing 4051. A through groove is provided at the front end of the protective housing 4051. A disassembly plate 4053 is provided on the inner wall of the protective housing 4051 to block the through groove. The proximity switch 4052 is a capacitive proximity switch. The protective housing 4051 is provided to protect the proximity switch 4052. The disassembly plate 4053 is provided to open the protective housing 4051 when replacing or repairing the proximity switch 4052.

[0039] A guide ring 2 10 is fixedly installed on the inner wall of the upright plate 401. A guide rod 2 9 is slidably arranged inside the guide ring 2 10. One end of the guide rod 2 9 is fixedly connected to the outer wall of the mounting frame 403. The guide rod 2 9 and the guide ring 2 10 are used to guide and limit the mounting frame 403 to prevent the mounting frame 403 from rotating.

[0040] Working principle: During use, the roller changing trolley moves towards the buffer component 3 and the positioning and pushing component 4. First, at least one of the two proximity switches 4052 will detect the roller changing trolley approaching. When it reaches the first working area, cylinder 2 402 is activated, driving the mounting bracket 403 to move, which in turn drives the push plate 406 to move, so that the roller 407 on the push plate 406 contacts the side of the roller changing trolley. Then, the roller changing trolley is pushed to be positioned in the center. After reaching the second working area, the roller changing trolley will collide with the silicone pad 307. The silicone pad 307 provides initial buffering and shock absorption for the roller changing trolley. Then, the impact is transmitted from the hinge seat 305 to the buffer shock absorber 304. The buffer shock absorber 304 provides secondary buffering and shock absorption to quickly stabilize the roller changing trolley. At this time, the electromagnet group 404 is activated to hold the roller changing trolley, and the roller changing operation can be performed.

[0041] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

Claims

1. An automatic centering and positioning mechanism for a roll changing trolley, characterized in that: Including the base plate (1); Buffer component (3) used to catch the roller changing trolley. Positioning and pushing components (4) are used to guide, position and lock the roller changing trolley. And the adjustable mounting plate (2) that connects the base plate (1), the adjustable mounting plate (2), and the buffer component (3); The positioning and pushing component (4) is divided into two parts, left and right. There are three adjustable mounting plates (2). The tops of the two left and right adjustable mounting plates (2) are connected to the positioning and pushing component (4), and the top of the middle adjustable mounting plate (2) is connected to the positioning and pushing component (4). The adjustable mounting plate (2) is connected to the base plate (1) by bolts.

2. The automatic centering and positioning mechanism for a roll changing trolley according to claim 1, characterized in that: The buffer component (3) includes a cylinder (301), which is fixedly installed on the top of the intermediate adjustable mounting plate (2). A lifting plate (302) is fixedly installed on the telescopic end of the cylinder (301). A mounting base (303) is fixedly installed on the top of the lifting plate (302). A buffer shock absorber (304) is fixedly installed on the mounting base (303). There are two buffer shock absorbers (304). A hinge seat (305) is fixedly installed on the movable end of the buffer shock absorber (304). A connecting plate (306) is fixedly connected to the other end of the hinge seat (305). A connecting plate (306) is fixedly installed on the outer wall of the connecting plate (306) facing away from the hinge seat (305).

3. The automatic centering and positioning mechanism for a roll changing trolley according to claim 2, characterized in that: The buffer shock absorber (304) includes a fixed cylinder (3041), which is fixedly connected to the mounting base (303). A sliding plate (3042) is slidably arranged inside the fixed cylinder (3041). A movable rod (3043) is fixedly connected to one side of the sliding plate (3042), and a damper (3044) and a spring (3045) are connected to the other side. The movable rod (3043) extends out from the fixed cylinder (3041) and is fixedly connected to the hinge seat (305). The end of the damper (3044) and the spring (3045) away from the sliding plate (3042) is fixedly connected to the inner wall of the fixed cylinder (3041).

4. An automatic centering and positioning mechanism for a roll changing trolley according to claim 3, characterized in that: The outer wall of the movable rod (3043) is slidably fitted with a limiting ring (7), the limiting ring (7) is fixedly installed in the port of the fixed cylinder (3041), the outer wall of the movable rod (3043) is provided with a limiting groove (8), and the protrusion on the inner side of the limiting ring (7) is slidably arranged in the limiting groove (8).

5. An automatic centering and positioning mechanism for a roll changing trolley according to claim 2, characterized in that: The inner wall of the lifting plate (302) is fixedly installed with a guide ring (6), and a guide rod (5) is slidably arranged inside the guide ring (6). The bottom end of the guide rod (5) is fixedly connected to the top of the middle adjustable mounting plate (2).

6. An automatic centering and positioning mechanism for a roll changing trolley according to claim 1, characterized in that: The positioning and pushing component (4) includes a vertical plate (401), two vertical plates (401) are provided and are respectively fixedly installed on the top of the left and right adjustable mounting plates (2). A cylinder two (402) is fixedly installed on the side of the vertical plate (401). A mounting bracket (403) is fixedly installed on the telescopic end of the cylinder two (402). An electromagnet assembly (404), a position sensing component (405), and a push plate (406) are fixedly installed on the mounting bracket (403). The electromagnet assembly (404) and the push plate (406) are both facing the front of the vertical plate (401). A roller (407) is rotatably arranged inside the push plate (406).

7. An automatic centering and positioning mechanism for a roll changing trolley according to claim 6, characterized in that: The position sensing component (405) includes a protective housing (4051), which is fixedly mounted on a mounting bracket (403). A proximity switch (4052) is provided inside the protective housing (4051). A through groove is provided at the front end of the protective housing (4051). A disassembly plate (4053) is provided on the inner wall of the protective housing (4051) to block the through groove.

8. An automatic centering and positioning mechanism for a roll changing trolley according to claim 6, characterized in that: A guide ring 2 (10) is fixedly installed on the inner wall of the upright plate (401), and a guide rod 2 (9) is slidably arranged inside the guide ring 2 (10). One end of the guide rod 2 (9) is fixedly connected to the outer wall of the mounting frame (403).

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