Miniature distance adjusting device

Abstract

A miniature distance adjusting device relates to the technical field of machining auxiliary equipment and comprises a wedge-shaped slider and a driving mechanism, the wedge-shaped slider is arranged between an upper roller body and a lower roller body, the driving mechanism drives the wedge-shaped slider to move left and right, one end of the upper roller body is rotatably connected to a sliding seat, one end of the lower roller body is rotatably connected to a fixing seat, and the other end of the upper roller body is rotatably connected to the fixing seat. The lower end face of the wedge-shaped sliding block abuts against the upper edge of the fixing base, the lower edge of the sliding base and the upper end of the wedge-shaped sliding block are provided with inclined faces which are in contact with each other in a matched mode, the sliding base is connected to a vertically-arranged guide rail in a sliding mode, and the wedge-shaped sliding block is driven by the driving mechanism to move left and right so that the wedge-shaped sliding block can abut against the sliding base. And the sliding seat drives the upper roller body to move downwards or upwards so as to adjust the distance between the upper roller body and the lower roller body. The micron-level roll gap adjusting device can achieve micron-level roll gap adjustment, the whole roll gap adjusting process can achieve automation, the structure is compact, responsiveness can be effectively improved, the roll gap distance can be fed back in real time so that adjustment can be conducted, and it is guaranteed that the size of the roll gap is stable.

Description

Technical Field

[0001] The utility model relates to the technical field of machining auxiliary equipment, in particular to a micro-distance adjusting device. Background Art

[0002] Extrusion sheeting equipment is commonly used in steel rolling, rubber and plastic, coating and other industries. The raw materials pass through the front-end extrusion system and the gap between the two rollers is controlled to achieve the purpose of accurate sheet thickness. At present, the existing roller gap adjustment method is mainly achieved by mechanical means of screw nut or hydraulic cylinder (cylinder) lifting stick, which has low adjustment accuracy, slow responsiveness and poor reliability. Utility Model Content

[0003] The purpose of the utility model is to provide a micro distance adjustment device to improve the responsiveness and adjustment accuracy in view of the problems mentioned in the above background technology.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a micro-distance adjusting device, comprising a wedge-shaped slider used to be arranged between an upper roller body and a lower roller body and a driving mechanism for driving the wedge-shaped slider to move left and right, one end of the upper roller body is rotatably connected to a slide seat, and one end of the lower roller body is rotatably connected to a fixed seat, the lower end face of the wedge-shaped slider abuts against the upper edge of the fixed seat, the lower edge of the slide seat and the upper end of the wedge-shaped slider are provided with inclined surfaces that cooperate and contact with each other, the slide seat is slidably connected to a vertically arranged guide rail, and the driving mechanism drives the wedge-shaped slider to move left and right, so that the wedge-shaped slider can push against the slide seat, so that the slide seat drives the upper roller body to move downward or upward, thereby adjusting the distance between the upper roller body and the lower roller body.

[0005] Preferably, the driving mechanism includes a servo motor, a reducer connected to the servo motor, and a screw connected to the reducer. The screw passes through the wedge-shaped slider and a matching thread is provided between the two, so that when the screw rotates, the wedge-shaped slider can be driven to move axially along the screw.

[0006] More preferably, the guide rail is mounted on a frame, a linear displacement sensor is fixedly mounted on the frame, and a movable plate that can move synchronously with the slide is connected between the slide and the linear displacement sensor.

[0007] More preferably, a cylinder is installed on the frame, the cylinder is located above the slide seat, one end of the cylinder piston rod is downwardly connected to a pressure block, and the pressure block presses downward against the top end of the slide seat.

[0008] More preferably, the servo motor and the reducer are mounted on a frame, the right end of the lead screw is connected to the reducer via a coupling, and the left end is mounted on the frame via a bearing seat.

[0009] Compared with the prior art, the utility model can drive the upper roller to move up and down by driving the wedge-shaped slider to move left and right, thereby quickly adjusting the spacing between the two rollers, effectively improving the responsiveness and accuracy of the roller spacing adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure in an embodiment of the utility model;

[0011] Figure 2 Schematic diagram of the structure of the lead screw and the wedge-shaped slider in the embodiment.

[0012] In the figure:

[0013] 1——Upper roller 2——Lower roller 3——Wedge-shaped slider

[0014] 4——Sliding seat 5——Fixed seat 6——Guide rail

[0015] 7——Servo motor 8——Reducer 9——Screw

[0016] 10——Frame 11——Linear displacement sensor 12——Active plate

[0017] 13——cylinder 14——pressure block 15——bearing seat. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0019] It should be noted in advance that, in the present utility model, unless otherwise clearly specified and limited, the terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances. In addition, in the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature can include the first and second features directly contacting, and can also include the first and second features not being in direct contact but contacting through another feature between them.

[0020] like Figure 1 to Figure 2As shown, a micro distance adjustment device includes a wedge-shaped slider 3 for being arranged between an upper roller body 1 and a lower roller body 2 and a driving mechanism for driving the wedge-shaped slider 3 to move left and right. One end of the upper roller body 1 is rotatably connected to a slide seat 4, and one end of the lower roller body 2 is rotatably connected to a fixed seat 5. The lower end surface of the wedge-shaped slider 3 abuts against the upper edge of the fixed seat 5. The lower edge of the slide seat 4 and the upper end of the wedge-shaped slider 3 are provided with inclined surfaces that cooperate with each other. The slide seat 4 is slidably connected to a vertically arranged guide rail 6. The wedge-shaped slider 3 is driven to move left and right by the driving mechanism, so that the wedge-shaped slider 3 can push against the slide seat 4, so that the slide seat 4 drives the upper roller body 1 to move downward or upward, thereby adjusting the distance between the upper roller body 1 and the lower roller body 2.

[0021] In the above structure, the driving mechanism includes a servo motor 7, a reducer 8 connected to the servo motor 7, and a screw 9 connected to the reducer 8. The screw 9 passes through the wedge-shaped slider 3 and a matching thread is provided between the two, so that when the screw 9 rotates, it can drive the wedge-shaped slider 3 to move along the axial direction of the screw.

[0022] The guide rail 6 is mounted on the frame 10, on which a linear displacement sensor 11 is fixedly mounted, and a movable plate 12 capable of moving synchronously with the slide 4 is connected between the slide 4 and the linear displacement sensor 11. Those skilled in the art should know that a movable contact rod is provided at one end of the linear displacement sensor, and synchronous movement is achieved by connecting the movable plate 12 with the contact rod, so that the precise displacement size of the upper roller body 1 can be detected.

[0023] In order to ensure that the upper roller body 1 and the lower roller body 1 have sufficient pressing force on the material, a cylinder 13 is installed on the frame 10. The cylinder 13 is located above the slide 4. One end of the piston rod of the cylinder 13 is connected to a pressure block 14 downward. The pressure block 14 presses downward against the top of the slide 4, thereby applying a certain pressure to the slide 4 and the upper roller body 1, so that the upper roller body 1 can remain stable. Of course, the skilled technicians should know that the upward thrust generated by the shoe-shaped slider 3 on the slide 4 when it moves to the left must be greater than the pressure applied by the cylinder 13, so as to overcome the pressure and realize the normal lifting of the slide 4.

[0024] In addition, in this embodiment, the servo motor 7 and the reducer 8 are installed on the frame 10, the right end of the screw rod 9 is connected to the reducer 8 through a coupling, and the left end is installed on the frame 10 through a bearing seat 15. Those skilled in the art should know that the linear displacement sensor 11 and the servo motor 7 are also connected to a controller to collect displacement information and control the operation of the servo motor 7.

[0025] The working principle of the micro-adjusting device provided in the above embodiment is that when the roller spacing needs to be increased, the operation is performed on the touch screen of the frame 10, and the input information can be fed back to the linear displacement sensor 11. The linear displacement sensor 11 can detect the real-time roller gap size according to the current state and the pre-adjusted data, and send the data to the controller. The controller starts the servo motor 7 to drive the screw 9 to rotate, so that the wedge slider 3 moves to the right along the axial direction of the screw 9, and the inclined surface at the upper end of the wedge slider 3 pushes against the slide 4, so that the slide 4 moves upward. At the same time, the linear displacement sensor 11 receives the displacement change data and sends it to the controller. When the preset displacement change amount is reached, the controller controls the servo motor 7 to stop, and the increase adjustment of the roller spacing is completed. When the roller spacing needs to be reduced, the servo motor 7 is started to reverse, and then the screw 9 is driven to reverse, so that the wedge slider 3 moves to the left along the axial direction of the screw 9, and the slide 4 gradually moves downward until it is adjusted to the preset spacing.

[0026] The present application adjusts the spacing of the roller bodies by moving the wedge-shaped slider 3, and is controlled by the servo motor 7 and the high-precision linear displacement sensor 11, so that the roller gap adjustment at the micron level can be achieved, and the entire roller gap adjustment process can be automated without manual intervention, thereby reducing the labor of workers. In addition, the present application has a compact structure, and the implementation principle is simple, reliable and effective. It can effectively improve the responsiveness and provide real-time feedback on the roller gap distance to make adjustments, thereby ensuring the stability of the roller gap size.

[0027] In order to make it easier for ordinary technicians in this field to understand the improvements of the present invention over the prior art, some drawings and descriptions of the present invention have been simplified, and the above-mentioned embodiments are better implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution is within the protection scope of the present invention.

Claims

1. A micro pitch adjustment device, characterized in that: The invention comprises a wedge-shaped slider (3) for being arranged between an upper roller body (1) and a lower roller body (2) and a driving mechanism for driving the wedge-shaped slider (3) to move left and right. One end of the upper roller body (1) is rotatably connected to a slide seat (4), and one end of the lower roller body (2) is rotatably connected to a fixed seat (5). The lower end surface of the wedge-shaped slider (3) abuts against the upper edge of the fixed seat (5). The lower edge of the slide seat (4) and the upper end of the wedge-shaped slider (3) are provided with inclined surfaces that are in contact with each other. The slide seat (4) is slidably connected to a vertically arranged guide rail (6). The wedge-shaped slider (3) is driven to move left and right by the driving mechanism, so that the wedge-shaped slider (3) pushes against the slide seat (4), so that the slide seat (4) drives the upper roller body (1) to move downward or upward, thereby adjusting the distance between the upper roller body (1) and the lower roller body (2).

2. The micro pitch adjustment device according to claim 1, characterized in that: The driving mechanism comprises a servo motor (7), a reducer (8) drivingly connected to the servo motor (7), and a screw rod (9) drivingly connected to the reducer (8); the screw rod (9) passes through the wedge-shaped slider (3) and a matching thread is provided between the two, so that when the screw rod (9) rotates, it can drive the wedge-shaped slider (3) to move along the axial direction of the screw rod.

3. The micro pitch adjustment device according to claim 2, characterized in that: The guide rail (6) is mounted on a frame (10), a linear displacement sensor (11) is fixedly mounted on the frame (10), and a movable plate (12) capable of moving synchronously with the slide seat (4) is connected between the slide seat (4) and the linear displacement sensor (11).

4. The micro pitch adjustment device according to claim 3, characterized in that: A cylinder (13) is mounted on the frame (10), and the cylinder (13) is located above the slide seat (4). One end of the piston rod of the cylinder (13) is connected downwardly to a pressure block (14), and the pressure block (14) is pressed downwardly against the top end of the slide seat (4).

5. The micro pitch adjustment device according to claim 4, characterized in that: The servo motor (7) and the reducer (8) are mounted on a frame (10); the right end of the screw rod (9) is connected to the reducer (8) via a coupling, and the left end is mounted on the frame (10) via a bearing seat (15).

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