CN215101268U - Forward and reverse rotation mechanism - Google Patents

Abstract

The utility model relates to a mechanism just reverses, include: a frame; the rack is provided with a transmission mechanism, a driving mechanism for driving the transmission mechanism to rotate and two winding mechanisms for winding the label tape; the two winding mechanisms are respectively in transmission connection with the transmission mechanism; the transmission mechanism is in transmission connection with the driving mechanism; this application uses a actuating mechanism just can realize the positive and negative rotation of rewinding machine, and is small, and can adjust the tension of label area when rewinding label area, avoids the label area to be broken by the tension.

Description

Forward and reverse rotation mechanism

Technical Field

The utility model relates to a receive and release coil stock equipment technical field, more specifically say, relate to a mechanism is just reversing.

Background

The label rewinding machine is used for winding a label tape from one rotating shaft to the other rotating shaft, rewinding is completed, and other functions (such as point number, length calculation, printing and spray printing, appearance/quality detection, code reading and writing and the like) are completed in rewinding in an expanding mode. The conventional bidirectional forward and reverse rewinding machine usually needs two driving motors, so that the rewinding machine is large in size and difficult to match with other devices, the conventional rewinding mechanism cannot adjust the tension of the label tape, and the label tape is easily torn off due to different qualities of the label tape, so that the production efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a mechanism just reverses for solve the unable regulation of current label area rewinding in-process tension, the great problem of rewinding machine equipment volume.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a positive and negative rotation mechanism comprising: a frame; the rack is provided with a transmission mechanism, a driving mechanism for driving the transmission mechanism to rotate and two winding mechanisms for winding the label tape; the two winding mechanisms are respectively in transmission connection with the transmission mechanism; the transmission mechanism is in transmission connection with the driving mechanism.

Optionally, the drive mechanism comprises: the driving device comprises a driving body and a driving output end; the driving output end is rotatably arranged on the driving body; the driving body is fixedly arranged on the rack, and the driving output end is in transmission connection with the winding mechanism.

Optionally, the transmission mechanism includes: the first transmission rod and the two first synchronous belt wheels; the two first synchronous belt wheels are sleeved on the first transmission rod; the two first synchronous belt wheels are in transmission connection with the two winding mechanisms respectively; the first transmission rod is rotatably arranged on the rack; the first transmission rod is in transmission connection with the driving output end.

Optionally, the winding mechanism includes: the winding roller shaft is arranged on the first transmission rod; the winding roll shaft is coaxially and fixedly connected with the second transmission rod; the one-way bearing is sleeved on the second transmission rod; the second synchronous belt wheel is sleeved on the one-way bearing; the second transmission rod is rotatably arranged on the rack; and the two second synchronous belt wheels are in transmission connection with the two first synchronous belt wheels through synchronous belts respectively.

Optionally, the first synchronous pulley and the second synchronous pulley are both synchronous pulleys with U-shaped grooves, and the two first synchronous pulleys are respectively connected with the two second synchronous pulleys through synchronous belt transmission; the cross section of the synchronous belt is circular.

Optionally, the winding mechanism further comprises a speed reducer, and the speed reducer is sleeved on the second transmission rod.

Optionally, the driving mechanism is a stepping motor or a servo motor.

To sum up, the utility model discloses following beneficial effect has: a positive and negative rotation mechanism, a frame; the rack is provided with a transmission mechanism, a driving mechanism for driving the transmission mechanism to rotate and two winding mechanisms for winding the label tape; the two winding mechanisms are respectively in transmission connection with the transmission mechanism; the transmission mechanism is in transmission connection with the driving mechanism; this application uses a actuating mechanism just can realize the positive and negative rotation of rewinding machine, and is small, and can adjust the tension of label area when rewinding the label area.

Drawings

FIG. 1 is a schematic view of the overall structure of the full forward and reverse rotation mechanism of the present invention;

in the figure: 1. a frame; 2. a transmission mechanism; 21. a first drive lever; 22. a first timing pulley; 3. a drive mechanism; 31. a drive body; 32. a drive output; 4. a winding mechanism; 41. a second transmission rod; 42. winding the roll shaft; 43. a one-way bearing; 44. a second timing pulley; 45. a speed reduction device.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and therefore should not be construed as limiting the present invention.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Referring to fig. 1, the present invention provides a forward/reverse rotation mechanism, including: a frame 1; the machine frame 1 is provided with a transmission mechanism 2, a driving mechanism 3 for driving the transmission mechanism 2 to rotate and two winding mechanisms 4 for winding the label tape; the two winding mechanisms 4 are respectively in transmission connection with the transmission mechanism 2; the transmission mechanism 2 is in transmission connection with the driving mechanism 3.

Particularly, in the working process of the device, the label tape reel is installed on the winding mechanism 4, the driving mechanism 3 is in transmission connection with the transmission mechanism 2, the transmission mechanism 2 is in transmission connection with the two winding mechanisms 4 respectively, when the driving mechanism 3 drives the transmission mechanism 2 to rotate, the two winding mechanisms 4 can be acted by the transmission mechanism 2 to rotate, and the label tape is rolled in the positive and negative directions through the difference of the rotating directions of the driving mechanism 3.

Further, the drive mechanism 3 includes: a drive body and drive output 32; the drive output 32 is rotatably arranged on the drive body; the driving body is fixedly arranged on the frame 1, and the driving output end 32 is in transmission connection with the winding mechanism 4.

Further, the transmission mechanism 2 includes: a first transfer bar 21 and two first synchronous pulleys 22; the two first synchronous belt wheels 22 are sleeved on the first transmission rod 21; the two first synchronous belt pulleys 22 are respectively in transmission connection with the two winding mechanisms; the first transmission rod 21 is rotatably arranged on the frame 1; the first transmission rod 21 is in transmission connection with the drive output end 32.

Further, the winding mechanism 4 includes: a second transmission rod 41, a winding roller shaft 42, a one-way bearing 43, and a second timing pulley 44; the winding roller shaft 42 is coaxially and fixedly connected with the second transmission rod 41; the one-way bearing 43 is sleeved on the second transmission rod 41; the second synchronous pulley 44 is sleeved on the one-way bearing 43; the second transmission rod 41 is rotatably arranged on the rack 1; the two second synchronous pulleys 44 are in transmission connection with the two first synchronous pulleys 22 respectively.

When the label tape is rewound, in order to ensure the label tape reel to be tight and flat, the winding roller shaft 42 where the new label tape reel is located needs to be set as a driving shaft, and the winding roller shaft 42 where the original label tape reel is located needs to be set as a driven shaft; the one-way bearing 43 is stressed in the positive direction to slide and rotate, and cannot slide and rotate under the reverse stress, and can only be used as a fixed connecting piece; therefore, when the driving mechanism 3 drives the transmission mechanism 2 to rotate forward, the first synchronous pulley 22 drives the driving shaft and the second synchronous pulley 44 on the driven shaft to rotate simultaneously, the second synchronous pulley 44 on the driving shaft drives the one-way bearing 43 to rotate in reverse, further drives the one-way bearing 43 to rotate in reverse, the reverse bearing drives the second transmission rod 41 of the driving shaft to rotate, and the second transmission rod 41 drives the winding roller shaft 42 to rotate, so that rewinding of the label tape on the driving shaft is realized; meanwhile, the second synchronous belt wheel 44 on the driven shaft is also driven by the first synchronous belt wheel 22 to rotate together; the one-way bearing 43 inside the second synchronous pulley 44 on the driven shaft is positively stressed to realize sliding rotation, the second transmission rod 41 on the driven shaft is not driven to rotate, and the driving shaft and the driven shaft are connected together in a transmission manner through the tension of the label tape to realize the rewinding work of the label tape; and similarly, when the label tape is required to be reversely rewound, the label tape can be reversely rewound only by controlling the driving mechanism 3 to reversely rotate.

Further, the first synchronous pulley 22 and the second synchronous pulley 44 are both synchronous pulleys with U-shaped grooves, and the two first synchronous pulleys 22 are respectively connected with the two second synchronous pulleys 44 through synchronous belt transmission; the cross section of the synchronous belt is circular.

The synchronous belt uses a synchronous belt with a circular cross section instead of a rack synchronous belt, when the tension of the label is too large and the driving shaft is difficult to drive the driven shaft to rotate, the tension of the label belt is adjusted to avoid the problem that the tension of the label belt is too large and the work efficiency is influenced by breaking the label belt through the slip phenomenon among the first synchronous belt pulley 22, the second synchronous belt pulley 44 and the circular synchronous belt.

Further, the winding mechanism 4 further comprises a speed reduction device 45, and the speed reduction device 45 is sleeved on the second transmission rod 41. The speed reducer 45 is used for preventing the label tape from being released too fast due to too fast rotating speed of the driven shaft, and keeping the label tape to be transferred at a constant speed.

Further, the driving mechanism 3 is a stepping motor or a servo motor.

In summary, according to the forward and reverse rotation mechanism provided by the present application, the one-way bearing 43 is used as a connecting device between the second synchronous pulley 44 and the second transmission rod 41, so that different effects can be realized during forward rotation and reverse rotation, thereby realizing the conversion between the driving shaft and the driven shaft; the driving shaft the driven shaft pass through circular hold-in range with actuating mechanism 3 transmission is connected, and when the tension of label area was too big, the phenomenon of skidding will appear in the circular hold-in range on the actuating mechanism 3, adjusts the tension on the label area, avoids the label area because the too big condition that takes place to break of tension.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (7)

1. A positive and negative rotation mechanism is characterized by comprising: a frame; the rack is provided with a transmission mechanism, a driving mechanism for driving the transmission mechanism to rotate and two winding mechanisms for winding the label tape; the two winding mechanisms are respectively in transmission connection with the transmission mechanism; the transmission mechanism is in transmission connection with the driving mechanism.

2. A positive and negative rotation mechanism according to claim 1, wherein said drive mechanism comprises: the driving device comprises a driving body and a driving output end; the driving output end is rotatably arranged on the driving body; the driving body is fixedly arranged on the rack, and the driving output end is in transmission connection with the driving mechanism.

3. A positive and negative rotation mechanism according to claim 2, wherein said transmission mechanism comprises: the first transmission rod and the two first synchronous belt wheels; the two first synchronous belt wheels are sleeved on the first transmission rod; the two first synchronous belt wheels are in transmission connection with the two winding mechanisms respectively; the first transmission rod is rotatably arranged on the rack; the first transmission rod is in transmission connection with the driving output end.

4. A counter-rotating mechanism according to claim 3, wherein said winding mechanism comprises: the winding roller shaft is arranged on the first transmission rod; the winding roll shaft is coaxially and fixedly connected with the second transmission rod; the one-way bearing is sleeved on the second transmission rod; the second synchronous belt wheel is sleeved on the one-way bearing; the second transmission rod is rotatably arranged on the rack; the two second synchronous belt wheels are in transmission connection with the two first synchronous belt wheels respectively.

5. A mechanism according to claim 4, wherein the first synchronous pulley and the second synchronous pulley are both synchronous pulleys with U-shaped grooves, and the two first synchronous pulleys are respectively connected with the two second synchronous pulleys through synchronous belt transmission; the cross section of the synchronous belt is circular.

6. A positive and negative rotation mechanism according to claim 5, wherein said winding mechanism further comprises: and the speed reducing device is sleeved on the second transmission rod.

7. A mechanism according to any one of claims 1 to 6 wherein the drive mechanism is a stepper motor or a servo motor.

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