Arm type double-station releasing and conveying mechanism
The arm-type double-station delivery mechanism solves the problems of roll deviation and loading difficulty through the flexible movement of the clamping arm, and realizes safe and efficient roll replacement.
Patent Information
- Application Number
- CN202422918761.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-28
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-11-28
AI Technical Summary
The existing unwinding device is prone to deviation when changing rolls of different widths, and the high-position operation of the loading station is difficult and dangerous.
The arm-type double-station unwinding mechanism is adopted. Through the swing and approach and distance movement of the inner and outer ends of the clamping arm, stable clamping and unwinding of rolls of different sizes can be achieved, and the loading position is lowered to reduce the difficulty of operation.
It achieves stable unwinding of rolls of different sizes, reduces the difficulty of loading and improves operational safety.
Smart Images
Figure CN223316039U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to unwinding equipment, in particular to an arm-type double-station unwinding mechanism. Background Art
[0002] In existing unwinding devices, in order to facilitate the replacement of rolls without stopping the machine after completing a round of unwinding, a turning frame is usually used for unwinding. During operation, one roll is unwound and the other roll is used as a standby roll. After the roll is unwound, the turning frame is turned over and the standby roll continues to unwind. The empty roll that has been unwound is first transferred to the loading station, and then unloaded and a new roll is placed, and then rotated to the standby station. However, the reel of this turning frame is usually fixed in length. In order to ensure that it can be smoothly applied to cloth rolls or other rolls of different widths that need to be frequently replaced, the reel is usually set to a longer length. This will cause the shorter roll to easily deviate left and right when unwinding. At the same time, in order to avoid obstructing the roll being unwound, the loading station of the turning frame is usually located at a higher position. Due to the heavy weight of the roll, placing a new roll at the loading station is not only difficult but also prone to danger. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide an arm-type double-station unwinding mechanism, which is suitable for unwinding rolls of various sizes and can effectively reduce the difficulty of loading materials.
[0004] In order to solve the above technical problems, the technical solutions adopted are as follows:
[0005] 14. The invention relates to an arm-type double-station delivery mechanism, comprising a frame, a control device and two clamping mechanisms, which are respectively mounted on the frame and are characterized in that: the clamping mechanism comprises a rotating shaft, a first driving device capable of driving the rotating shaft to rotate, two clamping arms, and a second driving device capable of driving the two clamping arms to move closer to or away from each other, the rotating shaft being rotatably mounted on the frame, the first driving device being mounted on the frame, and the rotating shaft being transmission-connected to the power output end of the first driving device; the second driving device being mounted on the rotating shaft, the inner end of the clamping arm being movably arranged on the rotating shaft along the rotating shaft, and the two clamping arms being respectively located at the two ends of the rotating shaft; the outer ends of the clamping arms are provided with material roll clamping pieces, and the material roll clamping pieces on the two clamping arms are arranged facing each other; the signal input ends of the first driving device, the second driving device and the material roll clamping pieces are respectively electrically connected to the corresponding signal output ends of the control device.
[0006] In the above-mentioned arm-type double-station unwinding mechanism, the two clamping mechanisms respectively clamp a material roll. One of the two material rolls can be unwound, and the other can be used as a standby roll to facilitate reel change without stopping the machine; or both can be unwound at the same time. When it is necessary to load the material roll, the first drive device can first drive the shaft to rotate, driving the outer end of the clamping arm to swing downward, thereby lowering the loading position, making loading easier and safer; then, the second drive device drives the two clamping arms away from each other until the material roll can enter between the two clamping arms, and the two ends of the roll shaft correspond to the positions of the two roll clamping members respectively; then, the second drive device drives the two clamping arms closer to each other, and the roll clamping members fix the two ends of the material roll; finally, the first drive device drives the shaft to rotate again, driving the outer end of the clamping arm to swing upward to the unwinding station, waiting for the material roll to be unwound. This dual-position arm-type unwinding mechanism can grip and unwind rolls of varying sizes, ensuring no roll shifting during unwinding. It also lowers the loading position during loading, effectively simplifying loading and ensuring safety. Similarly, for larger and heavier rolls, the outer end of the clamping arm can be swung downward to lower the unloading position for added safety.
[0007] In the above-mentioned inner and outer directions, the position where the clamping arm is close to the corresponding rotation axis is the inner side, and the position where the clamping arm is away from the corresponding rotation axis is the outer side.
[0008] In a preferred embodiment, the first drive device includes a swing drive mechanism capable of driving the swing arm to swing and at least one swing arm. The swing drive mechanism is mounted on the frame, one end of the swing arm is fixedly connected to the rotating shaft, and the other end of the swing arm is transmission-connected to the power output end of the swing drive mechanism; the signal input end of the swing drive mechanism is electrically connected to the corresponding signal output end of the control device. The swing drive mechanism can drive the swing arm to swing, thereby driving the rotating shaft to rotate, and ultimately driving the clamping arm to swing up and down. Since the swing angle required for the clamping arm in actual use is not large, and correspondingly, the rotation angle of the rotating shaft is also not large, adopting this structure can achieve more precise control.
[0009] In a further preferred embodiment, there are two swing arms, and the swing drive mechanism includes two swing control cylinders, one for each swing arm and one for each swing control cylinder. One end of each swing arm is fixedly mounted at each end of the rotating shaft, and the cylinder bodies of the swing control cylinders are hingedly connected to the other ends of the swing arms or the frame. The piston rods of the swing control cylinders are hingedly connected to the frame or the other ends of the swing arms. When the piston rods of the swing control cylinders are extended, they push the swing arms to swing, thereby driving the rotating shaft to rotate.
[0010] In a preferred embodiment, the second drive device includes at least one first guide member and a transverse drive mechanism. The first guide member is mounted on the rotating shaft and arranged along the length of the rotating shaft. The clamping arm is provided with a second guide member that matches the first guide member, and the clamping arm is movably mounted on the first guide member via the second guide member. The transverse drive mechanism is mounted on the rotating shaft, and the clamping arm is transmission-connected to the power output end of the transverse drive mechanism. The signal input end of the transverse drive mechanism is electrically connected to the corresponding signal output end of the control device. The transverse drive mechanism drives the two clamping arms toward or away from each other along the first guide member.
[0011] In a further preferred embodiment, the transverse drive mechanism includes two transverse control cylinders, one corresponding to each of the clamping arms. The cylinder bodies of the transverse control cylinders are mounted on the rotating shaft, and the piston rods of the transverse control cylinders are connected to the corresponding clamping arms. The piston rods of the transverse control cylinders drive the corresponding clamping arms to move along the first guide member. Typically, the piston rods of the two transverse control cylinders can independently control the left and right movement of the two clamping arms, or they can move together while clamping the web.
[0012] In a further preferred embodiment, the first guide member is a guide rail mounted on the rotating shaft and extending along its length; the second guide member is a guide groove that matches the guide rail. The guide rail can be a continuous rail extending from one end of the rotating shaft to the other, or it can be composed of two guide rail segments extending from one end of the rotating shaft toward the middle, with the two guide rail segments respectively matching the two clamping arms.
[0013] In a further preferred embodiment, the guide rails are two, mounted on corresponding sides of the sidewalls of the rotating shaft; and the clamping arm is provided with two guide grooves. Typically, the clamping arm can be mounted on the rotating shaft in a sleeve or clamping manner. The use of two guide rails allows the clamping arm to be more balanced during movement.
[0014] In a preferred embodiment, the roll clamping member is a pneumatic chuck rotatably mounted on the outer end of a clamping arm, with a signal input terminal of the pneumatic chuck electrically connected to a corresponding signal output terminal of the control device. When the two clamping arms are brought closer together, the pneumatic chuck can extend into the roll shaft. Once the clamping arms are in position, the pneumatic chuck, under control of the control device, holds the roll shaft in place.
[0015] In a further preferred embodiment, a brake is provided at the outer end of the clamping arm. The pneumatic chuck is transmission-connected to the power output of the brake, and the signal input of the brake is electrically connected to the corresponding signal output of the control device. The brake is typically a brake motor. The brake can brake the roll after it is fully unwound, stopping its rotation.
[0016] The control device may be a PLC controller, a single chip microcomputer or a microprocessor, etc. The control device generally controls the swing control cylinder and the lateral control cylinder through a solenoid valve.
[0017] The beneficial effect of the utility model is that the arm-type double-station unwinding mechanism is suitable for unwinding rolls of various sizes and can effectively reduce the difficulty of loading materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a structural diagram of the arm-type double-station delivery mechanism in the embodiment of the present utility model when the clamping arm is swung down;
[0019] Figure 2 This is a structural diagram of the arm-type double-station delivery mechanism in an embodiment of the present invention when the clamping arm is swung upward. DETAILED DESCRIPTION
[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:
[0021] like Figure 1-2 The arm-type double-station delivery mechanism shown in the figure includes a frame 1, a control device 2 and two clamping mechanisms 3, the two clamping mechanisms 3 are respectively mounted on the frame 1, the clamping mechanism 3 includes a rotating shaft 301, a first driving device 302 capable of driving the rotating shaft 301 to rotate, two clamping arms 303 and a second driving device 304 capable of driving the two clamping arms 303 to move closer to or away from each other, the rotating shaft 301 is rotatably mounted on the frame 1, the first driving device 302 is mounted on the frame 1, and the power of the rotating shaft 301 and the first driving device 302 is The output end is driven by a transmission connection; the second driving device 304 is installed on the rotating shaft 301, and the inner end of the clamping arm 303 can be movably set on the rotating shaft 301 along the rotating shaft 301, and the two clamping arms 303 are respectively located at both ends of the rotating shaft 301; the outer end of the clamping arm 303 is provided with a material roll clamping member 3031, and the material roll clamping members 3031 on the two clamping arms 303 are arranged facing each other; the signal input ends of the first driving device 302, the second driving device 304 and the material roll clamping member 3031 are respectively electrically connected to the signal output ends corresponding to the control device 2.
[0022] In the above-mentioned arm-type double-station unwinding mechanism, the two clamping mechanisms 3 each clamp a roll of material. One of the two rolls can be unwound while the other serves as a standby roll for convenient roll change without stopping the machine; or both rolls can be unwound simultaneously. When the roll needs to be loaded, the first drive device 302 can first drive the rotating shaft 301 to rotate, driving the outer end of the clamping arm 303 to swing downward, thereby lowering the loading position, making loading easier and safer; then, the second drive device 304 drives the two clamping arms 303 away from each other until the roll can enter between the two clamping arms 303 and the two ends of the roll shaft correspond to the positions of the two roll clamping members 3031; then, the second drive device 304 drives the two clamping arms 303 closer to each other, and the roll clamping members 3031 fix the two ends of the roll; finally, the first drive device 302 drives the rotating shaft 301 to rotate again, driving the outer end of the clamping arm 303 to swing upward to the unwinding station, waiting for the roll to be unwound. This arm-type dual-station unwinding mechanism can clamp and unwind rolls of varying sizes, ensuring that the rolls do not shift during unwinding. It also lowers the loading position during loading, effectively reducing loading difficulty and ensuring safety. Similarly, for larger and heavier rolls, the outer end of the clamping arm 303 can be swung downward to lower the unloading position for safety.
[0023] In the above-mentioned inner and outer directions, the position where the clamping arm 303 is close to the corresponding rotation axis 301 is the inner side, and the position where the clamping arm 303 is far from the corresponding rotation axis 301 is the outer side.
[0024] The first drive device 302 includes a swing drive mechanism 3021 capable of driving the swing arm 3022 to swing, and two swing arms 3022. The swing drive mechanism 3021 is mounted on the frame 1. One end of the two swing arms 3022 is fixedly connected to the two ends of the rotating shaft 301, and the other end of the swing arm 3022 is transmission-connected to the power output end of the swing drive mechanism 3021. The signal input end of the swing drive mechanism 3021 is electrically connected to the corresponding signal output end of the control device 2. The swing drive mechanism 3021 can drive the swing arm 3022 to swing, thereby driving the rotating shaft 301 to rotate, and ultimately driving the clamping arm 303 to swing up and down. Because the swing angle required for the clamping arm 303 in actual use is not large, and correspondingly, the rotation angle of the rotating shaft 301 is also not large, adopting this structure can achieve more precise control.
[0025] The swing drive mechanism 3021 includes two swing control cylinders, one corresponding to each swing arm 3022. The cylinder bodies of the swing control cylinders are hinged to the other end of the swing arm 3022 or the frame 1, and the piston rods of the swing control cylinders are hinged to the frame 1 or the other end of the swing arm 3022. When the piston rods of the swing control cylinders are extended, they push the swing arm 3022 to swing, thereby driving the rotation shaft 301.
[0026] The second drive device 304 includes two first guide members 3041 and a transverse drive mechanism 3042. The first guide members 3041 are mounted on the rotating shaft 301 and extend along its length. The clamping arm 303 is provided with a second guide member 3032 that matches the first guide member 3041. The clamping arm 303 is movably mounted on the first guide member 3041 via the second guide member 3032. The transverse drive mechanism 3042 is mounted on the rotating shaft 301, and the clamping arm 303 is transmission-connected to the power output terminal of the transverse drive mechanism 3042. The signal input terminal of the transverse drive mechanism 3042 is electrically connected to the corresponding signal output terminal of the control device 2. The transverse drive mechanism 3042 drives the two clamping arms 303 toward or away from each other along the first guide members 3041.
[0027] The transverse drive mechanism 3042 includes two transverse control cylinders, each corresponding to a clamping arm 303. The cylinder bodies of the transverse control cylinders are mounted on the rotating shaft 301, and the piston rods of the transverse control cylinders are connected to the corresponding clamping arms 303. The piston rods of the transverse control cylinders drive the corresponding clamping arms 303 to move along the first guide member 3041. Typically, when the piston rods of the two transverse control cylinders move, they move the same distance and in opposite directions.
[0028] The first guide member 3041 is a guide rail, with two guide rails mounted on corresponding sides of the sidewalls of the rotating shaft 301. The second guide member 3032 is a guide groove that matches the guide rails. The guide rail can be a continuous rail extending from one end of the rotating shaft 301 to the other, or it can be composed of two guide rail segments extending from one end of the rotating shaft 301 toward the middle, with each guide rail segment matching the two clamping arms 303. The clamping arms 303 can be mounted on the rotating shaft 301 in a sleeved or clamped manner. The use of two guide rails ensures a more balanced movement of the clamping arms 303.
[0029] The roll clamping member 3031 is a pneumatic chuck, rotatably mounted on the outer end of the clamping arm 303. Its signal input is electrically connected to the corresponding signal output of the control device 2. When the two clamping arms 303 are brought closer together, the pneumatic chuck can extend into the roll's spool. Once the clamping arms 303 are in position, the pneumatic chuck, under the control of the control device 2, holds the roll's spool in place.
[0030] A brake 3033 is also provided at the outer end of the clamping arm 303. The pneumatic chuck is in transmission connection with the power output of the brake 3033. The signal input of the brake 3033 is electrically connected to the corresponding signal output of the control device 2. The brake 3033 utilizes a brake motor. The brake 3033 brakes the roll after it is fully unwound, stopping its rotation.
[0031] The control device 2 may be a PLC controller, a single chip microcomputer or a microprocessor, etc. The control device 2 generally controls the swing control cylinder and the lateral control cylinder through a solenoid valve.
Claims
1. An arm-type double-station delivery mechanism, comprising a frame, a control device, and two clamping mechanisms, wherein the two clamping mechanisms are respectively mounted on the frame, and characterized in that: The clamping mechanism includes a rotating shaft, a first driving device capable of driving the rotating shaft to rotate, two clamping arms, and a second driving device capable of driving the two clamping arms to move closer to or away from each other. The rotating shaft can be rotatably mounted on the frame, the first driving device is mounted on the frame, and the rotating shaft is transmission-connected to the power output end of the first driving device; the second driving device is mounted on the rotating shaft, the inner end of the clamping arm can be movably arranged on the rotating shaft along the rotating shaft, and the two clamping arms are respectively located at both ends of the rotating shaft; the outer end of the clamping arm is provided with a material roll clamping piece, and the material roll clamping pieces on the two clamping arms are arranged facing each other; the signal input ends of the first driving device, the second driving device and the material roll clamping piece are respectively electrically connected to the corresponding signal output ends of the control device.
2. The arm-type double-station delivery mechanism according to claim 1, characterized in that: The first driving device includes a swinging driving mechanism capable of driving the swinging arm to swing and at least one swinging arm. The swinging driving mechanism is installed on the frame, one end of the swinging arm is fixedly connected to the rotating shaft, and the other end of the swinging arm is transmission-connected to the power output end of the swinging driving mechanism; the signal input end of the swinging driving mechanism is electrically connected to the signal output end corresponding to the control device.
3. The arm-type double-station delivery mechanism according to claim 2, characterized in that: There are two swing arms, and the swing drive mechanism includes two swing control cylinders. The swing arms and the swing control cylinders correspond one to one. One end of the two swing arms is fixedly mounted on both ends of the rotating shaft respectively. The cylinder body of the swing control cylinder is hinged to the other end of the swing arm or the frame, and the piston rod of the swing control cylinder is hinged to the frame or the other end of the swing arm.
4. The arm-type double-station delivery mechanism according to claim 1, characterized in that: The second driving device includes at least one first guide member and a transverse driving mechanism, the first guide member is installed on the rotating shaft and is arranged along the length direction of the rotating shaft, the clamping arm is provided with a second guide member matching the first guide member, and the clamping arm is movably arranged on the first guide member through the second guide member; the transverse driving mechanism is installed on the rotating shaft, and the clamping arm is transmission-connected to the power output end of the transverse driving mechanism; the signal input end of the transverse driving mechanism is electrically connected to the signal output end corresponding to the control device.
5. The arm-type double-station delivery mechanism according to claim 4, characterized in that: The transverse drive mechanism includes two transverse control cylinders, which correspond to the clamping arms one by one. The cylinder bodies of the transverse control cylinders are installed on the rotating shaft, and the piston rods of the transverse control cylinders are connected to the corresponding clamping arms.
6. The arm-type double-station delivery mechanism according to claim 4, characterized in that: The first guide member is a guide rail, which is installed on the rotating shaft and arranged along the length direction of the rotating shaft; the second guide member is a guide groove matching the guide rail.
7. The arm-type double-station delivery mechanism according to claim 6, characterized in that: There are two guide rails, which are respectively mounted on the corresponding two sides of the side wall of the rotating shaft; and two guide grooves are formed on the clamping arm.
8. The arm-type double-station delivery mechanism according to claim 1, characterized in that: The coil clamping piece is a pneumatic chuck, which is rotatably arranged at the outer end of the clamping arm, and the signal input end of the pneumatic chuck is electrically connected to the corresponding signal output end of the control device.
9. The arm-type double-station delivery mechanism according to claim 8, characterized in that: The outer end of the clamping arm is further provided with a brake, the pneumatic chuck is transmission-connected to the power output end of the brake, and the signal input end of the brake is electrically connected to the signal output end corresponding to the control device.