Deviation rectifying and unwinding device

Abstract

The utility model discloses a deviation rectifying unreeling device which comprises a main machine frame, a shaftless feeding mechanism and a deviation rectifying mechanism, and the shaftless feeding mechanism comprises a transverse adjusting assembly, an overturning assembly and a material clamping assembly. The transverse adjusting assembly comprises a transverse moving plate, a linear bearing and a linear shaft. The linear shaft is fixedly arranged on the transverse moving plate, the linear bearing is fixedly arranged on the main rack, and the linear bearing is in sliding fit with the linear shaft; the overturning assembly comprises an overturning seat and an overturning driving part for driving the overturning seat to overturn up and down, and the overturning seat is hinged to the transverse moving plate; a transverse guide rail is arranged on the overturning seat, and a left clamping unit and a right clamping unit of the clamping assembly are arranged on the overturning seat in a sliding manner through the transverse guide rail; the deviation rectifying mechanism comprises a deviation rectifying sensor and a controller in signal connection with the deviation rectifying sensor, the deviation rectifying sensor detects the deviation amount of the edge of the coil stock and feeds back the deviation amount to the controller, and the controller controls the deviation rectifying driving component to drive the transverse moving plate to conduct transverse position compensation. The linear bearing and the linear shaft are matched to enable the transverse moving plate to transversely move relative to the main machine frame, the deviation rectifying sensor detects the edge of materials, and the controller controls the transverse moving plate to move to directly adjust the position of the transverse moving plate to guarantee stable discharging.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of unwinding, especially relates to a deviation rectifying unwinding device. BACKGROUND

[0002] The unwinding device is used for stably unwinding the material (film, paper roll, etc.) and conveying to the subsequent processing procedure. The traditional deviation rectifying unwinding device adopts the fixed center shaft structure, that is, the rigid shaft penetrating the inner hole of the material is used to clamp the material. However, this kind of structure has obvious defects:

[0003] 1. Poor adaptability: the unwinding shaft is fixedly arranged on the unwinding mechanism, and according to different specifications of the material, the shaft body needs to be frequently replaced or the bushing needs to be increased, which leads to long equipment downtime and high labor cost;

[0004] 2. Low deviation rectifying accuracy: the material is prone to transverse deviation due to uneven tension or inertia deviation during the unwinding process, and the traditional deviation rectifying mechanism mainly relies on manual monitoring or mechanical limiting, which has slow response speed and cannot realize dynamic compensation; SUMMARY

[0005] The utility model provides a kind of deviation rectifying unwinding device that can quickly adapt to different specifications of material and ensure that material is accurately sent, in view of the shortcomings in the prior art.

[0006] To solve the above technical problems, the utility model discloses the following technical scheme: a kind of deviation rectifying unwinding device, including mainframe, shaftless feeding mechanism and deviation rectifying mechanism, the shaftless feeding mechanism includes transverse adjusting assembly, turnover assembly and clamping assembly;Transverse adjusting assembly, including horizontal shift plate, linear bearing and linear shaft;The linear shaft is fixedly arranged on the horizontal shift plate, the linear bearing is fixedly arranged on the mainframe, the linear bearing and the linear shaft are slidingly matched, the horizontal shift plate and the deviation rectifying drive part that drives the horizontal shift plate to move transversely relative to the mainframe are drivingly connected;Turnover assembly, including turnover seat and the turnover drive part that drives turnover seat to turn up and down, the turnover seat is hinged to the horizontal shift plate;Clamping assembly, including oppositely arranged left clamping unit and right clamping unit, the turnover seat is provided with transverse guide rail, the left clamping unit and the right clamping unit are slidingly arranged on the turnover seat by the transverse guide rail;The deviation rectifying mechanism includes deviation rectifying sensor and controller connected with the signal of deviation rectifying sensor, the deviation rectifying sensor is arranged on the mainframe, the deviation rectifying sensor detects the deviation of material edge and feeds back to the controller, and the controller controls the deviation rectifying drive part to drive the horizontal shift plate to carry out transverse position compensation.

[0007] In this invention, the linear bearing and linear shaft cooperate to form a sliding pair, enabling the transverse plate to move stably laterally relative to the main frame. Additionally, a correction sensor detects the material edge in real time, and the controller uses the detection signal from the correction sensor to control the correction drive component to move the transverse plate, directly adjusting its position and preventing errors from being transmitted to downstream processes, thus ensuring stable material feeding. Furthermore, when paper needs to be loaded, the flipping drive component drives the flipping seat to swing downwards, facilitating the operator to place the roll between the left and right clamping units. The clamping units move relative to each other according to different material specifications, offering strong adaptability. During unwinding, the flipping seat simply swings upwards to move the roll into position before unwinding begins.

[0008] Preferably, the flipping seat includes a flipping beam and linkage arms disposed on both sides of the flipping beam. The transverse guide rail is fixedly disposed on the flipping beam. The linkage arm includes a fixed end and a movable end. The fixed end is fixedly connected to the flipping beam, and the movable end is hinged to the output end of the flipping drive component.

[0009] Furthermore, the diameter of the fixed end of the linkage arm is larger than the diameter of the movable end. This facilitates installation, increases the connection area between the fixed end and the flipping base, ensures more even stress distribution, and extends service life.

[0010] Preferably, the left clamping unit includes a left clamping head and a left mounting bracket, the left clamping head being rotatably mounted on the left mounting bracket, and the bottom of the left mounting bracket having a left slider that cooperates with the transverse guide rail; the right clamping unit includes a right clamping head and a right mounting bracket, the right clamping head being rotatably mounted on the right mounting bracket, and the bottom of the right mounting bracket having a right slider that cooperates with the transverse guide rail.

[0011] Furthermore, the left and right gripping heads are each connected to a pneumatic brake that controls their respective rotation. Each pneumatic brake is used to control the rotational resistance of its respective gripping head. The pneumatic brakes prevent the coiled material from loosening due to inertial overshoot.

[0012] Preferably, the clamping assembly is located on top of the tilting seat, and the bottom of the tilting seat is provided with a clamping drive assembly that drives the left and right clamping units to move relative to each other. This allows for quick adjustment of the clamping spacing, adapting to different widths of rolled materials and reducing downtime.

[0013] Preferably, the alignment sensor is flexibly mounted on the main frame. This allows it to accommodate materials of different specifications. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the shaftless feeding mechanism of this utility model.

[0016] Figure 3 This is a side view of the shaftless feeding mechanism of this utility model.

[0017] The names of the body parts referred to by the numbers in the above attached diagrams are as follows:

[0018] The components include: 1. Main frame; 2. Transverse plate; 31. Linear bearing; 32. Linear shaft; 4. Tilting assembly; 41. Tilting drive component; 42. Tilting seat; 421. Tilting beam; 422. Linkage arm; 422a. Fixed end; 422b. Movable end; 51. Left clamping unit; 511. Left clamping head; 512. Left mounting bracket; 52. Right clamping unit; 521. Right clamping head; 522. Right clamping bracket; 6. Correction sensor; 7. Drum. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. The X-axis is the horizontal direction, i.e., the left-right direction; the Y-axis is the vertical direction, i.e., the front-back direction;

[0020] A deviation correction and unwinding device includes a main frame 1, a shaftless feeding mechanism, and a deviation correction mechanism. The main frame 1 and the shaftless feeding mechanism are separately arranged to facilitate the deviation correction mechanism in controlling the shaftless feeding mechanism to perform deviation correction from the source, preventing error accumulation and transmission to downstream processes. The shaftless feeding mechanism includes a lateral adjustment component, a flipping component 4, and a clamping component. The lateral adjustment component includes a transverse plate 2, a linear bearing 31, and a linear shaft 32. The linear shaft 32 is fixedly mounted on the transverse plate 2, and its two ends are fixed to the back of the transverse plate via bearing seats. The linear bearing 31 is fixedly mounted on the main frame 1. The linear bearing 31 and the linear shaft 32 are slidably engaged. The transverse plate 2 is connected to a deviation correction drive component that drives the transverse plate 2 to move laterally relative to the main frame 1. The linear bearing 31 and the linear shaft 32 cooperate to form a linear pair that moves in the left-right direction. The deviation correction drive component drives the transverse plate 2 to move the clamping component left and right to control the material direction and achieve deviation correction.

[0021] The flipping assembly 4 includes a flipping base 42 and a flipping drive component 41 that drives the flipping base 42 to flip up and down. The flipping base 42 is hinged to the transverse plate 2. The flipping drive component 41 can be a cylinder or a motor, etc. The flipping drive component 41 is mounted on the transverse plate 2. The output end of the flipping drive component 41 is hinged to the flipping base 42. When the flipping drive component 41 is a cylinder, the output shaft extends to drive the flipping base 42 to flip downward, and retracts to drive the flipping base 42 to flip upward. Specifically, the flipping base 42 includes a flipping beam 421 and linkage arms 422 mounted on both sides of the flipping beam 421. The transverse guide rail is fixedly mounted on the flipping beam 421. The linkage arm 422 includes a fixed end 422a and a movable end 422b. The fixed end 422a is fixedly connected to the flipping beam 421, and the movable end 422b is hinged to the output end of the flipping drive component 41. The diameter of the fixed end 422a of the linkage arm 422 is larger than the diameter of the movable end 422b. The diameter of the movable end 422b is adapted to the output end of the flipping drive component 41. The diameter of the fixed end 422a of the linkage arm 422 is adapted to the flipping seat 42, which increases the contact area between the fixed end 422a and the flipping seat 42, resulting in uniform force distribution and extended service life.

[0022] The clamping assembly includes a left clamping unit and a right clamping unit arranged opposite each other. A transverse guide rail is provided on the flipping base 42. The left and right clamping units are slidably mounted on the flipping base 42 via the transverse guide rail, accommodating different specifications of rolled materials. The left clamping unit includes a left clamping head 511 and a left mounting bracket 512. The left clamping head 511 is rotatably mounted on the left mounting bracket 512, and the bottom of the left mounting bracket 512 has a left slider that cooperates with the transverse guide rail. The right clamping unit includes a right clamping head 521 and a right mounting bracket. The right clamping head 521 is rotatably mounted on the right mounting bracket, and the bottom of the right mounting bracket has a right slider that cooperates with the transverse guide rail. The left and right clamping heads 511 and 521 are arranged opposite each other, and the left and right mounting brackets 512 move relative to each other. The clamping assembly is located on the top of the flipping base 42, and the bottom of the flipping base 42 has a clamping drive assembly for driving the left and right clamping units to move towards or away from each other. The clamping drive assembly can be a lead screw transmission mechanism or a linear drive assembly such as a cylinder. In addition, the left clamping head 511 and the right clamping head 521 are respectively connected to pneumatic brakes to control their rotation. That is, the left clamping head 511 has a left pneumatic brake and the right clamping head 521 is connected to a right pneumatic brake. Each has a pneumatic brake, which can effectively control the rotational resistance of each clamping head and prevent the coil from loosening.

[0023] The web-correcting mechanism includes a web-correcting sensor 6 and a controller connected to the web-correcting sensor 6 via a signal. The web-correcting sensor 6 is mounted on the main frame 1. The web-correcting sensor 6 detects the offset of the roll edge and feeds it back to the controller. The controller controls the web-correcting drive component to drive the transverse plate 2 for lateral position compensation. The web-correcting sensor 6 is a photoelectric sensor. The web-correcting sensor 6 is adjustable left and right on the main frame 1 to accommodate materials of different specifications. There are several ways to adjust the web-correcting sensor 6 left and right. For example, the web-correcting sensor 6 and the main frame 1 are connected by a screw. One end of the screw extends out of the wall plate of the main frame 1 and is connected to a handle. The web-correcting sensor 6 is adjusted left and right by rotating the handle. Alternatively, a servo motor is mounted on the main frame 1, and the web-correcting sensor 6 is connected to the output end of the servo motor. The servo motor is electrically connected to the controller to automatically adjust the position of the web-correcting sensor 6. The controller is also electrically connected to the flipping drive component 41, which controls the extension and retraction of the flipping drive component 41. In addition, the controller is also connected to the clamping drive component, which controls the left and right clamping units to move towards or away from each other to achieve material clamping and unloading.

[0024] The working principle of this utility model is described below with reference to the accompanying drawings: When the machine is stopped for feeding, the flipping drive component 41 drives the flipping seat 42 to flip downward, thereby causing the clamping assembly to swing downward. After the downward swing is in place, the clamping drive component drives the left clamping unit and the right clamping unit to move in opposite directions, which facilitates feeding the roll into the left clamping unit and the right clamping unit. Then the left clamping unit and the right clamping unit move towards each other. The left clamping head 511 and the right clamping head 521 cooperate to clamp the roll 7 of the roll. The flipping drive component 41 drives the flipping seat 42 to swing the clamping assembly upward to reach the feeding position. The feeding is simple, the downtime is shortened, and it can adapt to rolls of different specifications.

[0025] During the unloading process, the coiled material is conveyed to the downstream process through the traction mechanism. The discharge end of the shaftless feeding mechanism is equipped with a correction sensor 6 that detects the edge of the coiled material. The correction sensor 6 sends a detection signal to the controller, which controls the transverse plate 2 to drive the coiled material on the clamping unit to make corresponding left and right adjustments, correcting the deviation from the source and preventing the deviation from accumulating and being transmitted to the downstream process.

[0026] In the description of this invention, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In summary, the above description is only a preferred embodiment of the present utility model. All equivalent changes and modifications made within the scope of the patent application of the present utility model shall fall within the scope of the patent of the present utility model.

Claims

1. A deviation correction and unwinding device, characterized in that: Includes main frame (1), shaftless feeding mechanism and correction mechanism, The shaftless feeding mechanism includes a lateral adjustment component, a flipping component (4), and a clamping component; The lateral adjustment assembly includes a transverse plate (2), a linear bearing (31), and a linear shaft (32); The linear shaft (32) is fixedly mounted on the transverse plate (2), the linear bearing (31) is fixedly mounted on the main frame (1), the linear bearing (31) and the linear shaft (32) are slidably engaged, and the transverse plate (2) and the correction drive component that drives the transverse plate (2) to move laterally relative to the main frame (1) are connected by transmission. The flipping assembly (4) includes a flipping seat (42) and a flipping drive component (41) for driving the flipping seat (42) to flip up and down. The flipping seat (42) is hinged to the transverse plate (2). The clamping assembly includes a left clamping unit and a right clamping unit arranged opposite to each other. The flipping seat (42) is provided with a transverse guide rail. The left clamping unit and the right clamping unit are slidably arranged on the flipping seat (42) through the transverse guide rail. The correction mechanism includes a correction sensor (6) and a controller connected to the correction sensor (6) by signal. The correction sensor (6) is mounted on the main frame (1). The correction sensor (6) detects the offset of the roll edge and feeds it back to the controller. The controller controls the correction drive component to drive the transverse plate (2) to perform lateral position compensation.

2. The web-correcting unwinding device according to claim 1, characterized in that: The flipping seat (42) includes a flipping beam (421) and linkage arms (422) disposed on both sides of the flipping beam (421). The transverse guide rail is fixedly disposed on the flipping beam (421). The linkage arm (422) includes a fixed end (422a) and a movable end (422b). The fixed end (422a) is fixedly connected to the flipping beam (421), and the movable end (422b) is hinged to the output end of the flipping drive component (41).

3. The deviation correction and unwinding device according to claim 2, characterized in that: The diameter of the fixed end (422a) of the linkage arm (422) is larger than the diameter of the movable end (422b).

4. The web-correcting unwinding device according to claim 1, characterized in that: The left clamping unit includes a left clamping head (511) and a left mounting bracket (512). The left clamping head (511) is rotatably mounted on the left mounting bracket (512). The bottom of the left mounting bracket (512) is provided with a left slider that cooperates with the transverse guide rail. The right clamping unit includes a right clamping head (521) and a right mounting bracket. The right clamping head (521) is rotatably mounted on the right mounting bracket, and the bottom of the right mounting bracket is provided with a right slider that cooperates with the transverse guide rail.

5. The deviation correction and unwinding device according to claim 4, characterized in that: The left clamping head (511) and the right clamping head (521) are respectively connected to pneumatic brakes that control their rotation.

6. The web-correcting unwinding device according to claim 1, characterized in that: The clamping assembly is located on the top of the flipping seat (42), and the bottom of the flipping seat (42) is provided with a clamping drive assembly that drives the left clamping unit and the right clamping unit to move towards or away from each other.

7. The web-correcting unwinding device according to claim 1, characterized in that: The left and right adjustment sensor (6) is set on the main frame (1).

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