Winding drum material winding diameter detection device
By designing a roll diameter detection device, including a lifting mechanism and a limiting mechanism, the problem of the prior art being unable to adapt to the roll material loading of different roll diameters is solved, and a high-precision and flexible roll material loading solution is achieved.
Patent Information
- Application Number
- CN202421573495.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-04
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-04
AI Technical Summary
The existing lifting mechanism cannot adapt to the loading of rolls of different coil diameters, and some lifting mechanisms can only adapt to the rolls of one coil diameter.
A roll diameter detection device is designed, including a lifting mechanism and a limiting mechanism. The lifting mechanism drives the two supporting shafts to move in reverse by driving the swing arm, and the limiting mechanism ensures the correct position of the reel material through the micro switch and trapezoidal groove. The diameter of the reel material is accurately obtained by reading the instantaneous absolute encoder position of the drive motor.
Adaptive loading of rolling materials of different coil diameters is realized, ensuring high accuracy and flexibility of the lifting mechanism, and can adapt to rolling materials of rolling materials of multiple coil diameters.
Smart Images
Figure CN222799988U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of detection equipment, in particular to a roll diameter detection device for a roll material. Background Art
[0002] The roll material is loaded through the lifting mechanism. The center position of roll materials with different roll diameters is different, so before loading, it is necessary to know the roll diameter of the roll material to determine its center position. Some lifting mechanisms can only lift to a specified height, and this type of lifting mechanism can only adapt to the loading of roll materials with one roll diameter; some lifting mechanisms require the roll diameter to be input from the outside to obtain the lifting height parameter, and this type of lifting mechanism cannot adapt to the loading of roll materials with different roll diameters. Summary of the invention
[0003] The technical problem to be solved by the utility model is to provide a roll material diameter detection device which can detect the roll material diameter and can adaptively feed roll materials with different roll diameters.
[0004] In order to solve the above technical problems, the technical solution of the utility model is: a roll diameter detection device, including a lifting mechanism and a limiting mechanism; the lifting mechanism includes two parallel and equal-height supporting shafts, swing arms arranged at both ends of the supporting shafts and a driving mechanism for driving the swing arms, and the driving mechanism drives the two supporting shafts to move in opposite directions through the swing arms; the limiting mechanism includes a limiting plate arranged between the two supporting shafts and a micro switch arranged at the bottom of the limiting plate, and the limiting plate includes a bottom surface and inclined side surfaces arranged on both sides of the bottom surface, and the bottom surface and the side surfaces form a trapezoidal groove. The principle of the utility model is as follows: when it is necessary to detect the rolling diameter of the web, the driving mechanism drives the two supporting shafts to the lower limit position through the swing arm; the web is placed in the trapezoidal groove of the limit plate, the web is pressed on the micro switch, and the web cannot roll under the limit of the two side surfaces, and the two supporting shafts are located on both sides of the web and do not contact each other; the driving mechanism drives the two supporting shafts to approach each other and rise through the swing arm, and after the two supporting shafts contact the web and make it leave the micro switch, the signal triggers the driving mechanism to stop, and at this time the two supporting shafts and the micro switch form three contact points on the surface of the web, and by reading the instantaneous absolute encoder position of the driving motor, the diameter of the web can be accurately obtained through the designed corresponding relationship.
[0005] As an improvement, the support shaft includes an axis core and a roller sleeved on the axis core, and the end of the axis core is connected to the swing arm.
[0006] As an improvement, the driving mechanism includes a screw with two sections of reverse threads, two nut seats symmetrically arranged on the screw and a power source for driving the screw to rotate, the two nut seats correspond to two supporting shafts respectively, the nut seats are provided with support rollers acting on the swing arm, the power source includes a worm gear mechanism, a motor and an absolute encoder, the motor drives the screw through the worm gear mechanism, and the absolute encoder monitors the number of rotations of the motor.
[0007] As an improvement, the lifting mechanism and the limiting mechanism are installed on a support frame, and the support frame is arranged on a lifting platform of the AGV trolley.
[0008] Compared with the prior art, the utility model has the following beneficial effects:
[0009] The driving mechanism drives the two material support shafts to approach each other and rise through the swing arm. After the two material support shafts contact the web and make it leave the micro switch, the signal triggers the driving mechanism to stop. At this time, the two material support shafts and the micro switch form three contact points on the surface of the web. By reading the instantaneous absolute encoder position of the driving motor, the diameter of the web can be accurately obtained through the designed corresponding relationship. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a side view of the lifting mechanism.
[0011] Figure 2 This is a front view of the lifting mechanism.
[0012] Figure 3 It is a schematic diagram of the coordination between the lifting mechanism and the limiting mechanism. DETAILED DESCRIPTION
[0013] The utility model will be further described below in conjunction with the accompanying drawings.
[0014] A roll diameter detection device comprises a lifting mechanism and a limiting mechanism.
[0015] like Figure 1 , 2As shown, the lifting mechanism includes two parallel and equal-height supporting shafts 2, swing arms 3 arranged at both ends of the supporting shafts 2, a driving mechanism for driving the swing arms to swing, and a support frame. The support frame 7 is in the shape of a triangle, and includes a top plate 71 and side plates 72 located on both sides of the top plate 71, and the lower ends of the side plates 72 are completely formed outwardly as a supporting portion 73; the support frame can cooperate with the lifting platform of the AGV trolley 9, and the top plate 71 of the support frame 7 is fixed on the lifting platform of the AGV trolley 9, which can be connected by bolts or by pins. When the pin connection is used, the lifting tooling is placed on the tooling frame through the support frame 7, and the AGV trolley 9 takes out the lifting tooling as needed, so that the multifunctional use of the AGV trolley 9 can be realized; when the support frame cooperates with the AGV trolley 9, the side plates 72 of the support frame 7 are located on both sides of the AGV trolley 9, which can not only protect the AGV trolley 9, but also reduce the height of the lifting tooling, which is helpful for low-level loading. The two swing arms 3 on the same side of the supporting shaft 2 cross each other, and the swing arm 3 is V-shaped. The upper end of the swing arm 3 is connected to the supporting shaft 2, and the lower end of the swing arm 3 serves as a rotation fulcrum and is rotatably connected to the side of the support frame 7, so that the supporting shaft 2 is located above the top of the support frame 7; the scissor-cross lifting mechanism is adopted, and the lifting range of the supporting shaft 2 is larger, which can achieve the effect of low-position loading. The driving mechanism drives the two swing arms 3 on the same side to move in opposite directions, and it includes a screw rod 8 with two sections of reverse threads, two nut seats 5 symmetrically arranged on the screw rod 8, and a power source 6 for driving the screw rod 8 to rotate; the screw rod 8 is arranged at the top of the support frame 7 below the supporting shaft 2, the screw rod 8 is perpendicular to the supporting shaft 2, and the two nut seats 5 correspond to the two supporting shafts 2 respectively. The nut seat 5 is in the shape of a long strip, and the nut seat 5 is arranged parallel to the supporting shaft 2. The nut seat 3 slides with the support frame 7 through a sliding assembly, and the two ends of the nut seat 5 are provided with a force acting on the swing arm 3 The support roller 4 and the nut seat 5 drive the support roller 4 to push the swing arm 3 to swing. When the two nut seats 5 are close to each other, the two support shafts 2 are close to each other to achieve lifting. When the two nut seats 5 are away from each other, the two support shafts 2 are away from each other to achieve lowering. The power source 6 includes a worm gear mechanism, a motor and an absolute encoder. The motor drives the screw 8 through the worm gear mechanism. The worm gear has a self-locking function to prevent the roll material from sliding down autonomously during loading and unloading transportation. The screw 8 and the nut seat 5 cooperate with the motor, and the motor can achieve high-precision lifting with the cooperation of the absolute encoder.
[0016] like Figure 3 As shown, the limit mechanism includes a limit plate 10 arranged between the two supporting shafts 2 and a micro switch 11 arranged at the bottom of the limit plate 10; the limit plate 10 includes a bottom surface and inclined side surfaces arranged on both sides of the bottom surface, the bottom surface and the side surfaces form a trapezoidal groove, the micro switch 11 is arranged in the middle position of the bottom surface, and the distance between the micro switch 11 and the supporting shafts 2 on both sides is the same.
[0017] The principle of the utility model is as follows: when it is necessary to detect the rolling diameter of the web, the driving mechanism drives the two supporting shafts to the lower limit position through the swing arm; the web is placed in the trapezoidal groove of the limit plate, the web is pressed on the micro switch, and the web cannot roll under the limit of the two side surfaces, and the two supporting shafts are located on both sides of the web and do not contact each other; the driving mechanism drives the two supporting shafts to approach each other and rise through the swing arm, and after the two supporting shafts contact the web and make it leave the micro switch, the signal triggers the driving mechanism to stop, and at this time the two supporting shafts and the micro switch form three contact points on the surface of the web, and by reading the instantaneous absolute encoder position of the driving motor, the diameter of the web can be accurately obtained through the designed corresponding relationship.
Claims
1. A roll diameter detection device, characterized in that: It includes a lifting mechanism and a limiting mechanism; the lifting mechanism includes two parallel and equal-height supporting shafts, swing arms provided at both ends of the supporting shafts and a driving mechanism for driving the swing arms, and the driving mechanism drives the two supporting shafts to move in opposite directions through the swing arms; the limiting mechanism includes a limiting plate provided between the two supporting shafts and a micro switch provided at the bottom of the limiting plate, and the limiting plate includes a bottom surface and inclined side surfaces provided on both sides of the bottom surface, and the bottom surface and the side surfaces form a trapezoidal groove.
2. A web diameter detection device according to claim 1, characterized in that: The supporting shaft comprises an axis core and a roller sleeved on the axis core, and the end of the axis core is connected with a swing arm.
3. The web diameter detection device according to claim 1, characterized in that: The driving mechanism includes a screw with two sections of reverse threads, two nut seats symmetrically arranged on the screw and a power source for driving the screw to rotate, the two nut seats correspond to two supporting shafts respectively, and the nut seats are provided with supporting rollers acting on the swing arm. The power source includes a worm gear mechanism, a motor and an absolute encoder. The motor drives the screw through the worm gear mechanism, and the absolute encoder monitors the number of rotations of the motor.
4. A web diameter detection device according to claim 1, characterized in that: The lifting mechanism and the limiting mechanism are installed on a supporting frame, and the supporting frame is arranged on a lifting platform of the AGV trolley.