Strip steel centering device

Abstract

The utility model relates to a strip steel centering device which comprises a machine frame, a driving device and a centering device. The fast forward mechanism is arranged on the rack; the fast forward mechanism comprises a driving part, a first lead screw and a second lead screw, the driving part is arranged on the rack, the first lead screw is connected to the rotating shaft in a sleeving mode, and one end of the second lead screw is connected to the rotating shaft in a sleeving mode; the transmission mechanism comprises a sliding connecting rod, a fixed connecting rod and a transmission assembly, and the sliding connecting rod is arranged on the first lead screw and is in sliding fit with the rotating shaft; the side guide roller can be controlled to move fast and slowly through the rotating shaft, the driving piece, the first lead screw, the second lead screw, the sliding connecting rod, the fixed connecting rod, the transmission assembly and the power assembly, so that the moving and advancing time of the side guide roller is effectively shortened, the centering efficiency of the side guide roller is improved, the distance of a centering opening can be increased according to needs, and the centering efficiency is improved. And the practicability of the equipment is improved.

Description

Technical Field

[0001] The present application relates to the technical field of strip steel processing, and in particular to a strip steel centering device. Background Art

[0002] Strip centering is mainly used to ensure the accurate position of the strip during rolling to obtain better rolling effect and product quality. At present, a slide rail rack centering device is usually used to perform strip centering operations.

[0003] However, during use of the existing slide rail rack centering device, the two side guide rollers thereon can only move slowly, the speed at which the side guide rollers clamp and center the strip is low, and the centering opening distance is small. Strips with larger widths can hardly enter the centering mechanism, and the centering device needs to be manually disassembled, resulting in the equipment being unable to operate normally and increasing production costs.

[0004] In view of the above problems, a strip centering device is now designed. Utility Model Content

[0005] An embodiment of the present application provides a strip centering device to solve the problem in the related art that the slide rail rack centering device can only move slowly during use, has low centering efficiency, and has a small centering opening distance, so that larger wide bands can hardly enter the centering mechanism.

[0006] In a first aspect, a strip centering device is provided, comprising:

[0007] A frame, on which a rotating shaft is rotatably arranged;

[0008] A fast-forward mechanism, which is arranged on the frame;

[0009] The fast-forward mechanism comprises a driving member, a screw rod 1 and a screw rod 2, wherein the driving member is arranged on the frame, the screw rod is sleeved on the rotating shaft, one end of the screw rod 2 is sleeved on the rotating shaft, and the screw rod 1 is arranged opposite to the screw rod 2, the driving member is connected to the other end of the screw rod 2, and is used to drive the screw rod 2 to move along the length direction of the rotating shaft;

[0010] Two side guide rollers, which are screw-connected to the first screw rod and the second screw rod respectively;

[0011] The transmission mechanism comprises a sliding link, a fixed link and a transmission assembly, wherein the sliding link is arranged on the first screw rod and slidingly cooperates with the rotating shaft, the fixed link is arranged on the driving member, and the transmission assembly is arranged between the sliding link and the fixed link and is used to guide the sliding link and the fixed link to move toward or in opposite directions;

[0012] The slow-forward mechanism comprises a power assembly, which is arranged on a frame, connected to one end of the rotating shaft, and used for driving the rotating shaft, screw rod 1 and screw rod 2 to rotate coaxially.

[0013] In some embodiments, the driving member includes a cylinder and a bearing seat 1, the cylinder is arranged on a frame, and the cylinder piston rod is connected to the bearing seat 1;

[0014] The second screw rod is rotatably connected to the inner side of the first bearing seat.

[0015] In some embodiments, the fixed connecting rod includes an L-shaped connecting rod 1, one end of which is connected to the bearing seat 1, and the L-shaped connecting rod 1 is located below the rotating shaft.

[0016] In some embodiments, the sliding connecting rod includes an L-shaped connecting rod 2, a connecting tube and a bearing seat 2. The connecting tube is slidably sleeved on the rotating shaft, and one end of the connecting tube is connected to the screw rod 1 away from the end of the screw rod 2. The bearing seat 2 is rotatably set on the connecting tube, one end of the L-shaped connecting rod 2 is connected to the bearing seat 2, and the L-shaped connecting rod 2 and the L-shaped connecting rod 1 are symmetrically distributed.

[0017] In some embodiments, the transmission assembly includes a base, two racks and a gear, the base is arranged between the second L-shaped connecting rod and the first L-shaped connecting rod, the gear is rotatably arranged inside the base, and the gear is arranged horizontally, the two racks are relatively arranged on both sides of the gear, and the racks are meshed with the gear;

[0018] One end of the two racks away from the gear is connected to the L-shaped connecting rod 1 and the L-shaped connecting rod 2 respectively.

[0019] In some embodiments, the power assembly is a drive motor, which is disposed on a frame and is opposite to the cylinder, and an output shaft of the drive motor is connected to an end of the rotating shaft away from the screw rod.

[0020] In some embodiments, the slow-forward mechanism further includes two sliders, which are respectively disposed inside the first screw rod and the second screw rod;

[0021] A sliding groove is relatively provided on the rotating shaft, and the other end of the sliding block extends into the interior of the sliding groove and is slidably matched with the sliding groove.

[0022] In some embodiments, a group of guide rods are further included, wherein the group of guide rods are relatively arranged on the frame, the rotating shaft is located between the group of guide rods, the side guide rollers are sleeved on the guide rods, and the side guide rollers are slidably matched with the guide rods.

[0023] The embodiment of the present application provides a strip steel centering device, which can control the side guide roller to fast forward and slow forward through a rotating shaft, a driving member, a screw rod 1, a screw rod 2, a sliding connecting rod, a fixed connecting rod, a transmission assembly and a power assembly, thereby effectively shortening the moving travel time of the side guide roller, while ensuring the accuracy of the side guide roller, improving the centering efficiency of the side guide roller, and can increase the distance of the centering opening as needed, thereby improving the practicability of the equipment without affecting the working efficiency of the steel strip centering. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 The front view and cross-section view provided in the embodiment of the present application Figure 1 ;

[0026] Figure 2 The front view and cross-section view provided in the embodiment of the present application Figure 2 ;

[0027] Figure 3 The top view provided in the embodiment of the present application Figure 1 ;

[0028] Figure 4 The top view provided in the embodiment of the present application Figure 2 ;

[0029] Figure 5 A top view of a transmission assembly provided in an embodiment of the present application Figure 1 ;

[0030] Figure 6 Provided in the embodiments of this application Figure 5 Sectional view at AA in the middle;

[0031] Figure 7 A top view and cross-section of the rotating shaft provided in an embodiment of the present application;

[0032] Figure 8 A front view of the slide rail rack centering device provided in an embodiment of the present application.

[0033] In the figure: 1. frame; 2. rotating shaft; 3. fast-forward mechanism; 31. driving part; 311. cylinder; 312. bearing seat 1; 32. screw rod 1; 33. screw rod 2; 4. transmission mechanism; 41. sliding connecting rod; 411. L-shaped connecting rod 2; 412. connecting tube; 413. bearing seat 2; 42. fixed connecting rod; 43. transmission assembly; 431. base; 432. rack; 433. gear; 5. side guide roller; 6. slow-forward mechanism; 61. power assembly; 62. slider; 7. slide groove; 8. guide rod; 9. guide plate table. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0035] The embodiment of the present application provides a strip centering device, which can solve the problem in the related art that the slide rail rack centering device can only move slowly during use, has low centering efficiency, and has a small centering opening distance, making it almost impossible for a larger wide band to enter the centering mechanism.

[0036] See also Figure 1-Figure 3 A strip centering device comprises: a frame 1, a fast-forward mechanism 3, two side guide rollers 5, a transmission mechanism 4 and a slow-forward mechanism 6. A rotating shaft 2 is rotatably arranged on the frame 1; the fast-forward mechanism 3 is arranged on the frame 1; the fast-forward mechanism 3 comprises a driving member 31, a screw rod 1 32 and a screw rod 2 33, the driving member 31 is arranged on the frame 1, the screw rod 1 32 is sleeved on the rotating shaft 2, one end of the screw rod 2 33 is sleeved on the rotating shaft 2, and the screw rod 1 32 is arranged opposite to the screw rod 2 33, the driving member 31 is connected to the other end of the screw rod 2 33, and is used to drive the screw rod 2 33 to move along the length direction of the rotating shaft 2; the two side guide rollers 5 are respectively screwed to the screw rod 1 32 and The second screw rod 33; the transmission mechanism 4 includes a sliding link 41, a fixed link 42 and a transmission assembly 43, the sliding link 41 is arranged on the first screw rod 32, and slides with the rotating shaft 2, the fixed link 42 is arranged on the driving member 31, and the transmission assembly 43 is arranged between the sliding link 41 and the fixed link 42, and is used to guide the sliding link 41 and the fixed link 42 to move toward or in the opposite direction; the slow-forward mechanism 6 includes a power assembly 61, the power assembly 61 is arranged on the frame 1, the power assembly 61 is connected to one end of the rotating shaft 2, and is used to drive the rotating shaft 2, the first screw rod 32 and the second screw rod 33 to rotate coaxially.

[0037] It should be noted that if Figure 3 and Figure 4 As shown, during actual operation, the steel strip is clamped and placed between two side guide rollers 5 by an external guide plate table 9 .

[0038] Before centering the strip, the device is reset to maximize the opening distance between the two side guide rollers 5, and then the guide plate table 9 is used to feed the strip between the two side guide rollers 5. Subsequently, the fast-forward mechanism 3 is turned on, and the drive member 31 drives the second screw 33 to approach the first screw 32 through the support of the rotating shaft 2. At the same time, the drive member 31 drives the fixed connecting rod 42 to move in the same direction as the second screw 33. Guided by the transmission assembly 43, the sliding connecting rod 41 and the fixed connecting rod 42 move toward each other. Through the sliding support of the rotating shaft 2, the first screw 32 approaches the second screw 33, thereby driving the two The side guide rollers 5 approach quickly, and when the side guide rollers 5 are 5-10 cm away from the steel strip, the driving member 31 is closed, and the slow-feed mechanism 6 is opened. The power assembly 61 drives the rotating shaft 2, the screw rod 1 32 and the screw rod 2 33 to rotate coaxially, and the threaded rotation thrust of the screw rod 1 32 and the screw rod 2 33 drives the two side guide rollers 5 to move slowly accurately, thereby clamping and centering the steel strip, thereby effectively shortening the moving travel time of the side guide rollers 5, while ensuring the accuracy of the side guide rollers, and the distance of the centering opening can be increased as needed without affecting the working efficiency of the steel strip centering.

[0039] It can be understood that the screw rod 1 32 is hollow inside, with both ends being open, and is slidably sleeved on the rotating shaft 2, the screw rod 2 33 is hollow inside, and has an open end away from the driving member 31, and the open end of the screw rod 2 33 is inserted into the rotating shaft 2, and the two are slidably fitted.

[0040] Specifically, Figure 1 As shown, the driving member 31 in this embodiment includes a cylinder 311 and a bearing seat 312. The cylinder 311 is arranged on the frame 1, and the piston rod of the cylinder 311 is connected to the bearing seat 312; the screw rod 33 is rotatably connected to the inner side of the bearing seat 312.

[0041] During the centering process of the steel belt, the cylinder 311 is turned on, and the cylinder 311 drives the bearing seat 1 312 and the screw rod 2 33 to approach the screw rod 1 32. At the same time, through the rotation support of the bearing seat 1 312, the power component 61 can drive the rotating shaft 2, the screw rod 1 32 and the screw rod 2 33 to rotate coaxially.

[0042] Further, if Figure 1 and Figure 2 As shown, in this embodiment, the fixed connecting rod 42 includes an L-shaped connecting rod 1, one end of which is connected to the bearing seat 1 312, and the L-shaped connecting rod 1 is located below the rotating shaft 2.

[0043] In actual use, the cylinder 311 drives the bearing seat 1 312 and the screw rod 2 33 to approach the screw rod 1 32. Since the L-shaped connecting rod 1 is connected to the bearing seat 1 312, the L-shaped connecting rod 1 is driven to move in the same direction as the screw rod 2 33.

[0044] Further, such as Figure 1 and Figure 2 As shown, the sliding connecting rod 41 in this embodiment includes an L-shaped connecting rod 411, a connecting tube 412 and a bearing seat 413. The connecting tube 412 is slidably sleeved on the rotating shaft 2, and one end of the connecting tube 412 is connected to the end of the screw rod 32 away from the screw rod 33, and the bearing seat 413 is rotatably set on the connecting tube 412, one end of the L-shaped connecting rod 411 is connected to the bearing seat 413, and the L-shaped connecting rod 411 and the L-shaped connecting rod 1 are symmetrically distributed.

[0045] It can be understood that the inner ring of the second bearing seat 413 is fixedly connected to the connecting tube 412.

[0046] In actual use, when the L-shaped connecting rod 1 follows the screw rod 2 33 and approaches the screw rod 1 32, the L-shaped connecting rod 2 411 and the L-shaped connecting rod 1 move in the same direction under the guidance of the transmission assembly 43, so that the L-shaped connecting rod 2 411 approaches the L-shaped connecting rod 1, thereby driving the connecting cylinder 412 and the screw rod 1 32 to approach the screw rod 2 33, so as to realize the fast forward of the two side guide rollers 5;

[0047] At the same time, through the rotation support of the bearing seat 2 413, when the power assembly 61 drives the rotating shaft 2, the screw rod 1 32 and the screw rod 2 33 to rotate coaxially, the connecting tube 412 rotates with the screw rod 1 32, and the L-shaped connecting rod 2 411 remains stationary.

[0048] Preferably, Figure 1 , Figure 5 and Figure 6 As shown, the transmission assembly 43 in this embodiment includes a base 431, two racks 432 and a gear 433. The base 431 is arranged between the L-shaped connecting rod 2 411 and the L-shaped connecting rod 1. The gear 433 is rotatably arranged inside the base 431, and the gear 433 is arranged horizontally. The two racks 432 are relatively arranged on both sides of the gear 433, and the racks 432 are meshed with the gear 433.

[0049] One end of the two racks 432 away from the gear 433 is connected to the L-shaped connecting rod 1 and the L-shaped connecting rod 2 411 respectively.

[0050] In actual use, when the L-shaped connecting rod 1 follows the screw rod 2 33 and approaches the screw rod 1 32, at this time, the rack 432 on the L-shaped connecting rod 1 moves together to the side close to the screw rod 1 32. Since the two racks 432 are meshed with each other and the two racks 432 are arranged opposite to each other, the rack 432 on the L-shaped connecting rod 2 411 is driven to move to the side away from the screw rod 1 32, thereby driving the L-shaped connecting rod 2 411 and the L-shaped connecting rod to move together;

[0051] By the same principle, when the L-shaped connecting rod 1 follows the screw rod 2 33 away from the screw rod 1 32, the rack 432 on the L-shaped connecting rod 1 moves together to the side away from the screw rod 1 32. At this time, the rack 432 on the L-shaped connecting rod 2 411 moves to the side close to the screw rod 1 32, so that the L-shaped connecting rod 2 411 and the L-shaped connecting rod 1 move in opposite directions, thereby driving the screw rod 1 32 and the screw rod 2 33 to move closer to or away from each other.

[0052] It should be noted that through holes are provided in the middle of the base 431 and on both sides of the base 431, and the through holes on both sides are parallel to the rotating shaft 2. The rotating shaft 2 is rotatably provided inside the base 431, and the rotating shaft 2 is vertically provided. The gear 433 is provided on the rotating shaft 2, and the gear 433 is driven to rotate through the rotating support of the rotating shaft 2.

[0053] In addition, the side of the rack 432 away from the gear 433 is in contact with the side wall of the base 431 , so that the rack 432 and the gear 433 remain stable during the meshing and moving process.

[0054] Specifically, Figure 1 The power assembly 61 in the present embodiment is a drive motor, which is disposed on the frame 1 and is opposite to the cylinder 311 . The output shaft of the drive motor is connected to the end of the rotating shaft 2 away from the screw rod 33 .

[0055] The driving motor can drive the rotating shaft 2, the screw rod 1 32 and the screw rod 2 33 to rotate coaxially.

[0056] Preferably, Figure 7 As shown, in order to make the rotation of the shaft 2, the screw rod 1 32 and the screw rod 2 33 more stable, the slow-moving mechanism 6 in this embodiment further includes two sliders 62, which are respectively arranged inside the screw rod 1 32 and the screw rod 2 33; the shaft 2 is provided with a slide groove 7, and the other end of the slider 62 extends into the slide groove 7 and slides with the slide groove 7.

[0057] Through the guidance of the slider 62, the sliding trajectory of the screw rod 1 32 and the screw rod 2 33 on the rotating shaft 2 can be limited, so that the movement of the side guide roller 5 is more stable, and when the driving motor drives the rotating shaft 2, the screw rod 1 32 and the screw rod 2 33 to rotate, the limiting effect of the slider 62 can make the rotation effect between the three more stable, avoiding the different rotation rates between the rotating shaft 2, the screw rod 1 32 and the screw rod 2 33, which affects the centering accuracy of the two side guide rollers 5.

[0058] like Figure 8 As shown, in actual use, the equipment adopts a smooth rail lower pressure plate structure which cannot withstand a large lifting force. When the strip head builds tension behind the upper coiler reel, there is an upward force on the center of the strip, causing the centering baffle to lift the rack, which can easily cause tooth jumping or tooth disengagement between the rack and the gear.

[0059] In addition, if Figure 3 As shown, the present embodiment also includes a group of guide rods 8, wherein the group of guide rods 8 are relatively arranged on the frame 1, the rotating shaft 2 is located between the group of guide rods 8, the side guide rollers 5 are sleeved on the guide rods 8, and the side guide rollers 5 are slidably matched with the guide rods 8.

[0060] During the centering process of the strip, a group of guide rods 8 are used to guide the side guide rollers 5, which can make their movement more stable. At the same time, a group of guide rods 8 and the rotating shaft 2 can support the strip and the side guide rollers 5, thereby improving the overall stability of the equipment and the bearing capacity of the equipment, and preventing tooth jumping or tooth disengagement between the rack 432, the gear 433, the L-shaped connecting rod 1 and the L-shaped connecting rod 2 411.

[0061] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0062] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0063] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A strip centering device, It is characterized in that include: A frame (1) on which a rotating shaft (2) is rotatably arranged; A fast-forward mechanism (3), which is arranged on the frame (1); The fast-forward mechanism (3) comprises a driving member (31), a screw rod 1 (32) and a screw rod 2 (33); the driving member (31) is arranged on the frame (1); the screw rod 1 (32) is sleeved on the rotating shaft (2); one end of the screw rod 2 (33) is sleeved on the rotating shaft (2); the screw rod 1 (32) and the screw rod 2 (33) are arranged opposite to each other; the driving member (31) is connected to the other end of the screw rod 2 (33) and is used to drive the screw rod 2 (33) to move along the length direction of the rotating shaft (2); Two side guide rollers (5) are respectively screw-connected to the first screw rod (32) and the second screw rod (33); A transmission mechanism (4), comprising a sliding link (41), a fixed link (42) and a transmission assembly (43), wherein the sliding link (41) is arranged on the screw rod (32) and is slidably matched with the rotating shaft (2), the fixed link (42) is arranged on the driving member (31), and the transmission assembly (43) is arranged between the sliding link (41) and the fixed link (42) and is used to guide the sliding link (41) and the fixed link (42) to move toward or in opposite directions. The slow-moving mechanism (6) comprises a power assembly (61), wherein the power assembly (61) is arranged on the frame (1), the power assembly (61) is connected to one end of the rotating shaft (2), and is used to drive the rotating shaft (2), the first screw rod (32) and the second screw rod (33) to rotate coaxially.

2. A strip centering device as claimed in claim 1, Features: The driving member (31) comprises a cylinder (311) and a bearing seat (312); the cylinder (311) is arranged on the frame (1); and the piston rod of the cylinder (311) is connected to the bearing seat (312); The second screw rod (33) is rotatably connected to the inner side of the first bearing seat (312).

3. A strip centering device as claimed in claim 2, Features: The fixed connecting rod (42) comprises an L-shaped connecting rod 1, one end of which is connected to the bearing seat 1 (312), and the L-shaped connecting rod 1 is located below the rotating shaft (2).

4. A strip centering device as claimed in claim 3, Features: The sliding connecting rod (41) comprises an L-shaped connecting rod 2 (411), a connecting tube (412) and a bearing seat 2 (413); the connecting tube (412) is slidably sleeved on the rotating shaft (2), and one end of the connecting tube (412) is connected to an end of the screw rod 1 (32) away from the end of the screw rod 2 (33); the bearing seat 2 (413) is rotatably arranged on the connecting tube (412); one end of the L-shaped connecting rod 2 (411) is connected to the bearing seat 2 (413), and the L-shaped connecting rod 2 (411) and the L-shaped connecting rod 1 are symmetrically distributed.

5. A strip centering device as claimed in claim 4, Features: The transmission assembly (43) comprises a base (431), two racks (432) and a gear (433); the base (431) is arranged between the second L-shaped connecting rod (411) and the first L-shaped connecting rod; the gear (433) is rotatably arranged inside the base (431), and the gear (433) is arranged horizontally; the two racks (432) are arranged oppositely on both sides of the gear (433), and the racks (432) are meshed with the gear (433); One end of the two racks (432) away from the gear (433) is connected to the L-shaped connecting rod 1 and the L-shaped connecting rod 2 (411) respectively.

6. A strip centering device as claimed in claim 2, Features: The power assembly (61) is a drive motor, which is arranged on the frame (1) and is arranged opposite to the cylinder (311). The output shaft of the drive motor is connected to an end of the rotating shaft (2) away from the second screw rod (33).

7. A strip centering device as claimed in claim 1, Features: The slow-moving mechanism (6) further comprises two sliders (62), and the two sliders (62) are respectively arranged inside the first screw rod (32) and the second screw rod (33); A slide groove (7) is provided on the rotating shaft (2) and the other end of the sliding block (62) extends into the interior of the slide groove (7) and is slidably matched with the slide groove (7).

8. A strip centering device as claimed in claim 1, Features: It also comprises a group of guide rods (8), wherein the group of guide rods (8) are relatively arranged on the frame (1), the rotating shaft (2) is located between the group of guide rods (8), the side guide rollers (5) are sleeved on the guide rods (8), and the side guide rollers (5) are slidably matched with the guide rods (8).

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