CN215827932U

CN215827932U - Constant-speed rewinding machine

Info

Publication number: CN215827932U
Application number: CN202121320025.1U
Authority: CN
Inventors: 刘铸
Original assignee: Guangzhou Flags Electromechanical Equipment Co ltd
Current assignee: Guangzhou Flags Electromechanical Equipment Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-02-15
Anticipated expiration: 2031-06-11

Abstract

The utility model relates to a constant-speed rewinding machine, which comprises: the label tape winding and unwinding device comprises a rack, wherein the rack is provided with an unwinding mechanism for unwinding a label tape, a winding mechanism for winding the label tape, a first driving mechanism for transmitting the label tape on the unwinding mechanism to the winding mechanism, a second driving mechanism for driving the unwinding mechanism and the winding mechanism to rotate, and a pressing mechanism for pressing the label tape on the first driving mechanism; the unwinding mechanism is in transmission connection with the second driving mechanism; the winding mechanism is in transmission connection with the second driving mechanism; the rewinding machine can realize constant-speed conveying and rewinding of the label tape, and the conveying speed cannot be changed due to the fact that the diameter of the label tape coil changes.

Description

Constant-speed rewinding machine

Technical Field

The utility model relates to the technical field of automation equipment, in particular to a constant-speed rewinding machine.

Background

The label rewinding machine is used for winding a label tape from one rotating shaft to the other rotating shaft to complete rewinding and the process of expanding and completing other functions (such as point number, length calculation, printing and spray printing, appearance/quality detection, code reading and writing and the like) in rewinding; its major structure of current label rewinding machine includes first pivot and second pivot, and the rolling axle is the main power drive axle during the rotation, and the axle of unreeling is unpowered driven shaft when the label rewinding machine work, because the diameter of label book can be bigger and bigger along with time, if the rotational speed of driving shaft is invariable, can cause the transmission speed of label area more and more fast, influences the extension process of rewinding. Therefore, in order to ensure the smooth proceeding of the label processing process, it is necessary to ensure the constant speed transfer of the label tape.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a constant-speed rewinding machine which is used for solving the problem that the speed cannot be kept constant in the rewinding process of the conventional label.

The technical purpose of the utility model is realized by the following technical scheme:

a constant-speed rewinding machine comprising: the label tape winding and unwinding device comprises a rack, wherein the rack is provided with an unwinding mechanism for unwinding a label tape, a winding mechanism for winding the label tape, a first driving mechanism for transmitting the label tape on the unwinding mechanism to the winding mechanism, a second driving mechanism for driving the unwinding mechanism and the winding mechanism to rotate, and a pressing mechanism for pressing the label tape on the first driving mechanism; the unwinding mechanism is in transmission connection with the second driving mechanism; the winding mechanism is in transmission connection with the second driving mechanism.

Optionally, the first driving mechanism includes a first motor body, a first motor shaft, and a power roller shaft; the first motor rotating shaft is rotatably arranged on the first motor body; the power roll shaft is rotatably arranged on the rack; the power roll shaft is in transmission connection with the first motor rotating shaft; the first motor body is fixedly arranged on the rack.

Optionally, the second driving mechanism comprises: the second motor body, the second motor rotating shaft, the first synchronous belt pulley and the second synchronous belt pulley; the second motor rotating shaft is rotatably arranged on the second motor body; the first synchronous belt pulley and the second synchronous belt pulley are sleeved on the second motor rotating shaft; the first synchronous belt wheel is in transmission connection with the unwinding mechanism; the second synchronous belt wheel is in transmission connection with the winding mechanism; the second motor body is fixedly arranged on the rack.

Optionally, the unwinding mechanism includes: the unwinding device comprises an unwinding roller, an unwinding rotating shaft, a first speed reducing device and a third synchronous belt wheel; the unwinding roller is coaxially and fixedly connected with the unwinding rotating shaft; the third synchronous belt wheel is sleeved on the unreeling rotating shaft, and the first speed reducing device is sleeved on the unreeling rotating shaft; the unreeling rotating shaft is rotatably arranged on the rack; and the third synchronous belt wheel is in transmission connection with the first synchronous belt wheel.

Optionally, the winding mechanism includes: the winding roller, the winding rotating shaft, the second speed reducing device and the fourth synchronous belt wheel; the winding roller is coaxially and fixedly connected with the winding rotating shaft; the fourth synchronous belt pulley is sleeved on the winding rotating shaft; the second speed reducing device is sleeved on the unwinding rotating shaft; the unreeling rotating shaft is rotatably arranged on the rack; and the fourth synchronous belt wheel is in transmission connection with the second synchronous belt wheel.

Optionally, the radius of the third synchronous pulley is smaller than the radius of the first synchronous pulley; the radius of the first synchronous pulley is equal to the radius of the second synchronous pulley; the radius of the second synchronous pulley is smaller than the radius of the fourth synchronous pulley.

Optionally, the pressing mechanism includes: the device comprises a roller, an eccentric rotating block, an eccentric rotating shaft, a limiting pin and a wrench; the roller is sleeved outside the eccentric rotating shaft; the eccentric rotating block is fixedly connected with the eccentric rotating shaft, the eccentric rotating block is rotatably arranged on the limit pin, an arc-shaped limit groove is formed in the eccentric rotating block, the limit pin is arranged in the limit groove and fixed on the rack, and the wrench is in threaded connection with the limit pin.

Optionally, the unwinding mechanism is in transmission connection with the second driving mechanism through a synchronous belt; the winding mechanism is connected with the second driving mechanism through a synchronous belt.

Optionally, the cross section of the synchronous belt is circular.

In conclusion, the utility model has the following beneficial effects: the application discloses constant speed rewinding machine includes: the label tape winding and unwinding device comprises a rack, wherein the rack is provided with an unwinding mechanism for unwinding a label tape, a winding mechanism for winding the label tape, a first driving mechanism for transmitting the label tape on the unwinding mechanism to the winding mechanism, a second driving mechanism for driving the unwinding mechanism and the winding mechanism to rotate, and a pressing mechanism for pressing the label tape on the first driving mechanism; the unwinding mechanism is in transmission connection with the second driving mechanism; the winding mechanism is in transmission connection with the second driving mechanism; the rewinding machine can realize constant-speed conveying and rewinding of the label tape, and the conveying speed cannot be changed due to the fact that the diameter of the label tape coil changes.

Drawings

FIG. 1 is an elevational view of the overall construction of the present invention;

FIG. 2 is a side view of the overall structure of the present invention;

FIG. 3 is a side view of the hold down mechanism and drive mechanism of the present invention;

FIG. 4 is a schematic view of the hold down mechanism and drive mechanism of the present invention;

in the figure: 1. a frame; 2. an unwinding mechanism; 21. unwinding rollers; 22. an unwinding rotating shaft; 23. a first reduction gear; 24. a third synchronous pulley; 3. a winding mechanism; 31. a wind-up roll; 32. a winding rotating shaft; 33. a second reduction gear; 34. a fourth timing pulley; 4. a first drive mechanism; 41. a first motor body; 42. a first motor shaft; 43. a power roll shaft; 5. a second drive mechanism; 51. a second motor body; 52. a second motor shaft; 53. a first timing pulley; 54. a second timing pulley; 6. a hold-down mechanism; 61. a drum; 62. an eccentric rotating block; 63. an eccentric rotating shaft; 64. a spacing pin; 65. a wrench; 66. a limiting groove.

Detailed Description

In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the utility model are presented in the drawings. This 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," "secured," and the like are to be construed broadly and can, 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 meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. 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 invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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 devices or elements must be in a particular orientation, configuration, and operation, and therefore should not be construed as limiting the present invention.

The utility model is described in detail below with reference to the figures and examples.

Referring to fig. 1-4, the constant-speed rewinding machine of the present invention includes: the label tape winding and unwinding device comprises a rack 1, wherein an unwinding mechanism 2 for unwinding a label tape, a winding mechanism 3 for winding the label tape, a first driving mechanism 4 for transmitting the label tape on the unwinding mechanism to the winding mechanism, a second driving mechanism 5 for driving the unwinding mechanism 2 and the winding mechanism 3 to rotate, and a pressing mechanism 6 for pressing the label tape on the first driving mechanism 4 are arranged on the rack 1; the unwinding mechanism 2 is in transmission connection with the second driving mechanism 5; the winding mechanism 3 is in transmission connection with the second driving mechanism 5.

Specifically, in the constant-speed rewinding machine provided by the utility model, the label tape reel to be unwound is placed on the unwinding mechanism 2, the label tape reel to be wound is placed on the winding mechanism 3 and is processed and scanned by other equipment, the label tape reel needs to be wound, in the conventional rewinding machine, a constant-speed motor is generally in transmission connection with the rewinding mechanism, and the unwinding mechanism 2 serves as a driven mechanism to follow; along with the processing, when the number of the label tape reels on the unwinding mechanism 2 is less and less, the constant angular speed of the constant speed motor can cause the linear speed to be increased due to the increase of the diameter of the label tape reel, so that the label is transmitted more and more quickly, and the label tape is transmitted by using the independent first driving mechanism 4 in the mechanism, so that the transmission speed of the label tape is not influenced by the change of the radius of the label tape reel, and the uniform transmission of the label tape is realized; the pressing mechanism 6 is used for clamping the label tape in a gap between the pressing mechanism 6 and the first driving mechanism 4, so that the phenomenon that the processing procedure is influenced by the slippage problem between the first driving mechanism 4 and the label tape is avoided; the second driving mechanism 5 is used for providing a rotary driving force for the winding mechanism 3 to realize the winding work of the winding mechanism 3 on the label tape, and the second driving mechanism 5 also provides a certain rotary power for the unwinding mechanism 2 to avoid the label tape from being broken due to the fact that the rotary power is provided by the tension of the label tape completely.

Further, the first driving mechanism 4 includes a first motor body 41, a first motor rotating shaft 42, and a power roller shaft 43; the first motor rotating shaft 42 is rotatably arranged on the first motor body 41; the power roller shaft 43 is rotatably arranged on the frame 1; the power roller shaft 43 is in transmission connection with the first motor rotating shaft 42; the first motor body 41 is fixedly arranged on the frame 1.

Specifically, the power roller 43 functions to pull the label tape out of the unwinding mechanism 2 and wind it around the winding mechanism 3 by using the friction between the label tape and the power roller 43.

Further, the second drive mechanism 5 includes: a second motor body 51, a second motor rotating shaft 52, a first synchronous pulley 53, and a second synchronous pulley 54; the second motor rotating shaft 52 is rotatably arranged on the second motor body 51; the first synchronous belt pulley 53 and the second synchronous belt pulley 54 are sleeved on the second motor rotating shaft 52; the first synchronous belt pulley 53 is in transmission connection with the unwinding mechanism 2; the second synchronous belt pulley 54 is in transmission connection with the winding mechanism 3; the second motor body 51 is fixedly arranged on the frame 1.

Further, the unwinding mechanism 2 (in the present embodiment, the winding mechanism 3 and the unwinding mechanism 2 have the same structure, so only the structural diagram of the unwinding mechanism 2 is marked in the side view of fig. 2, and the structural diagram of the winding mechanism 3 should be understood as viewed by those skilled in the art.) includes: the unwinding device comprises an unwinding roller 21, an unwinding rotating shaft 22, a first speed reducing device 23 and a third synchronous belt wheel 24; the unwinding roller 21 is coaxially and fixedly connected with the unwinding rotating shaft 22; the third synchronous pulley 24 is sleeved on the unwinding rotating shaft 22, and the first speed reducing device 23 is sleeved on the unwinding rotating shaft 22; the unreeling rotating shaft 22 is rotatably arranged on the rack 1; the third synchronous pulley 24 is in driving connection with the first synchronous pulley 53.

Further, the winding mechanism 3 includes: a wind-up roller 31, a wind-up rotating shaft 32, a second speed reducer 33, and a fourth synchronous pulley 34; the winding roller 31 is coaxially and fixedly connected with the winding rotating shaft 32; the fourth synchronous pulley 34 is sleeved on the winding rotating shaft 32; the second speed reducing device 33 is sleeved on the unreeling rotating shaft 22; the unreeling rotating shaft 22 is rotatably arranged on the rack 1; the fourth timing pulley 34 is in driving connection with the second timing pulley 54.

Further, the radius of the third timing pulley 24 is smaller than the radius of the first timing pulley 53; the radius of the first timing pulley 53 is equal to the radius of the second timing pulley 54; the radius of the second timing pulley 54 is smaller than the radius of the fourth timing pulley 34.

Specifically, the second driving mechanism 5 is operated to provide the winding mechanism 3 with rotational power for winding the label tape, and in order to avoid breaking the label tape, the second driving mechanism 5 also provides rotational power for the unwinding mechanism 2, and in order to ensure that the unwound label tape is completely pulled away by the first driving mechanism 4 and completely wound into the winding mechanism 3, the speed of unwinding the label tape by the unwinding mechanism 2 needs to be adjusted to be slower, so that the radius of the third synchronous pulley 24 of the unwinding mechanism 2 is larger, and when the first synchronous pulley 53 rotates at a constant speed, that is, when the linear speed is constant, the rotational angular speed of the unwinding mechanism 2 can be reduced; the radius of the fourth synchronous pulley 34 of the winding mechanism 3 is smaller, and when the second synchronous pulley 54 rotates at a constant speed, i.e. the linear velocity is constant, the rotation angular velocity of the fourth synchronous pulley 34 is larger, so that the winding speed can be increased, and the redundancy of the label tape can be avoided.

Further, the pressing mechanism 6 includes: a drum 61, an eccentric rotation block 62, an eccentric rotation shaft 63, a stopper pin 64, and a wrench 65; the roller 61 is sleeved on the eccentric rotating shaft 63; the eccentric rotating block 62 is fixedly connected with the eccentric rotating shaft 63, the eccentric rotating block 62 is rotatably arranged on the limit pin 64, an arc-shaped limit groove 66 is formed in the eccentric rotating block 62, the limit pin 64 is arranged in the limit groove 66 and fixed on the rack 1, and the wrench 65 is in threaded connection with the limit pin 64.

The pressing mechanism 6 in the prior art generally uses a pressing mechanism 6 with a resilient elastic support, and the support needs to occupy a certain space, which is not beneficial to the densification of equipment. In the apparatus of this embodiment, the eccentric rotating block 62 is used as the adjusting device of the compressing mechanism 6, so that the compressing mechanism 6 can be away from the first driving mechanism 4 in an eccentric state, and a certain gap is reserved, which is convenient for the label tape to smoothly pass through the gap between the driving device and the compressing device; the limiting pin 64 and the limiting groove 66 are matched with each other to enable the eccentric device to rotate according to a preset track in the rotating process, and the spanner 65 can tightly press the eccentric rotating block 62 on the rack 1, so that the operation of people is facilitated; the roller 61 is sleeved on the eccentric rotating shaft 63, the roller 61 can rotate on the eccentric rotating shaft 63, and the first driving mechanism 4 is matched to convey the label from the unwinding mechanism 2 to the rewinding mechanism at a constant speed.

Further, the unwinding mechanism 2 is in transmission connection with the second driving mechanism 5 through a synchronous belt; the winding mechanism 3 is connected with the second driving mechanism 5 through a synchronous belt.

Further, the cross section of the synchronous belt is circular.

As mentioned above, in order to keep the label tape from redundancy, the rotational angular velocity of the winding mechanism 3 is slightly larger than that of the first driving mechanism 4, and the rotational angular velocity of the first driving mechanism 4 is slightly larger than that of the unwinding mechanism 2; therefore, no matter the label tape between the winding mechanism 3 and the first driving mechanism 4 or the label tape between the first driving mechanism 4 and the unwinding mechanism 2 is in a tensioned state, when the label tape is under an excessive tension and the winding mechanism 3 is difficult to operate, the circular conveyor belt slips, the driving mechanism idles for a short distance, the winding mechanism 3 stops rotating, the label tape is prevented from being broken, and the tension on the label tape between the winding mechanism 3 and the unwinding mechanism 2 is adjusted.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims

1. A constant-speed rewinding machine, characterized by comprising: the label tape winding and unwinding device comprises a rack, wherein the rack is provided with an unwinding mechanism for unwinding a label tape, a winding mechanism for winding the label tape, a first driving mechanism for transmitting the label tape on the unwinding mechanism to the winding mechanism, a second driving mechanism for driving the unwinding mechanism and the winding mechanism to rotate, and a pressing mechanism for pressing the label tape on the first driving mechanism; the unwinding mechanism is in transmission connection with the second driving mechanism; the winding mechanism is in transmission connection with the second driving mechanism.

2. A constant-speed rewinding machine as claimed in claim 1, characterized in that said first driving mechanism comprises: the motor comprises a first motor body, a first motor rotating shaft and a power roller shaft; the first motor rotating shaft is rotatably arranged on the first motor body; the power roll shaft is rotatably arranged on the rack; the power roll shaft is in transmission connection with the first motor rotating shaft; the first motor body is fixedly arranged on the rack.

3. A constant-speed rewinding machine as claimed in claim 2, characterized in that said second driving mechanism comprises: the second motor body, the second motor rotating shaft, the first synchronous belt pulley and the second synchronous belt pulley; the second motor rotating shaft is rotatably arranged on the second motor body; the first synchronous belt pulley and the second synchronous belt pulley are sleeved on the second motor rotating shaft; the first synchronous belt wheel is in transmission connection with the unwinding mechanism; the second synchronous belt wheel is in transmission connection with the winding mechanism; the second motor body is fixedly arranged on the rack.

4. A constant-speed rewinding machine as claimed in claim 3, characterized in that said unwinding mechanism comprises: the unwinding device comprises an unwinding roller, an unwinding rotating shaft, a first speed reducing device and a third synchronous belt wheel; the unwinding roller is coaxially and fixedly connected with the unwinding rotating shaft; the third synchronous belt wheel is sleeved on the unreeling rotating shaft, and the first speed reducing device is sleeved on the unreeling rotating shaft; the unreeling rotating shaft is rotatably arranged on the rack; and the third synchronous belt wheel is in transmission connection with the first synchronous belt wheel.

5. A constant-speed rewinding machine as claimed in claim 4, characterized in that said winding mechanism comprises: the winding roller, the winding rotating shaft, the second speed reducing device and the fourth synchronous belt wheel; the winding roller is coaxially and fixedly connected with the winding rotating shaft; the fourth synchronous belt pulley is sleeved on the winding rotating shaft; the second speed reducing device is sleeved on the unwinding rotating shaft; the unreeling rotating shaft is rotatably arranged on the rack; and the fourth synchronous belt wheel is in transmission connection with the second synchronous belt wheel.

6. A constant-speed rewinding machine as claimed in claim 5, characterized in that said pressing mechanism comprises: the device comprises a roller, an eccentric rotating block, an eccentric rotating shaft, a limiting pin and a wrench; the roller is sleeved on the eccentric rotating shaft; the eccentric rotating block is fixedly connected with the eccentric rotating shaft, the eccentric rotating block is rotatably arranged on the limit pin, an arc-shaped limit groove is formed in the eccentric rotating block, the limit pin is arranged in the limit groove and fixed on the rack, and the wrench is in threaded connection with the limit pin.

7. A constant-speed rewinding machine as claimed in claim 6, characterized in that said third synchronous pulley has a smaller radius than said first synchronous pulley; the radius of the first synchronous pulley is equal to the radius of the second synchronous pulley; the radius of the second synchronous pulley is smaller than the radius of the fourth synchronous pulley.

8. A constant-speed rewinding machine according to any one of claims 1 to 7, characterized in that said unwinding mechanism is connected to said second driving mechanism by means of a synchronous belt drive; the winding mechanism is connected with the second driving mechanism through a synchronous belt.

9. A constant-speed rewinding machine as claimed in claim 8, characterized in that said timing belt is circular in section.