CN219173847U

CN219173847U - Label tension adjusting device

Info

Publication number: CN219173847U
Application number: CN202320342056.XU
Authority: CN
Inventors: 俞清华; 齐淑敏
Original assignee: Zhejiang Yuxin Intelligent Technology Co ltd
Current assignee: Zhejiang Yuxin Intelligent Technology Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-06-13
Anticipated expiration: 2033-02-28

Abstract

The utility model discloses a label tension adjusting device, which comprises a machine case, wherein an automatic adjusting assembly and an electric adjusting assembly are arranged in the machine case, the automatic adjusting assembly comprises an outer rod, an inner rod which is in sliding connection with the outer rod, a first tensioning roller which is in rotary connection with the inner rod, and springs of which two stress ends are respectively fixedly arranged on the inner wall of the outer rod and the end part of the inner rod, the electric adjusting assembly comprises a second tensioning roller and an electric push rod which drives the second tensioning roller to move, and a label belt sequentially bypasses the first tensioning roller and the second tensioning roller; the relative positions of the outer rod and the inner rod are controlled by the acting force between the first tensioning roller and the label belt by utilizing the performance of the spring, so that the label belt passing through the case can realize real-time and automatic tightness adjustment; the position of the second tensioning roller can be changed through the active driving of the electric push rod, and the tightness of the label tape can be adjusted manually.

Description

Label tension adjusting device

Technical Field

The utility model relates to the technical field of labels, in particular to a label tension adjusting device.

Background

The label winding device needs to adjust the tightness of the label when winding, and the label tape is too tight to cause the laborious transmission and even break the label tape.

In the prior art, the patent with the application number of CN202022370622.7 discloses a self-adhesive label winding device, a label tape extends in a Z shape to bypass a tensioning roller connected with two levers, and the tension of the label tape is adjusted by driving the levers to rotate through an air cylinder. However, the cylinder of the device drives the lever to rotate, and the disadvantage is that the lever may be locked when the axial direction of the cylinder and the rotation center of the lever are positioned on the same straight line. Even if no lockup occurs, the tensioning force may be smaller when the cylinder in this state is extended, and the device requires a longer cylinder to exert a larger tensioning force.

Disclosure of Invention

In order to solve at least one technical problem mentioned in the background art, an object of the present utility model is to provide a tag tension adjusting device for better adjusting the tightness of a tag.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a label tension adjusting device, includes quick-witted case and is located feed roll and the play feed roll of quick-witted incasement, be equipped with automatic adjustment subassembly and electric adjustment subassembly in the quick-witted incasement, automatic adjustment subassembly includes outer pole, with outer pole sliding connection's interior pole, with interior pole rotation connection's first tensioning roller and two atress ends set firmly the spring of the inner wall of outer pole and the tip of interior pole respectively, electric adjustment subassembly includes second tensioning roller and the electric putter of drive second tensioning roller removal, first tensioning roller and second tensioning roller butt are on the label area; the outer pole is equipped with the distance sensor that is used for detecting the diapire distance of interior pole to outer pole in, and distance sensor electricity is connected with PLC, and PLC is connected with electric putter electricity.

Compared with the prior art, the utility model has the beneficial effects that:

the relative positions of the outer rod and the inner rod are controlled by the acting force between the first tensioning roller and the label belt by utilizing the performance of the spring, so that the label belt passing through the case can realize real-time and automatic tightness adjustment; the distance sensor detects the distance from the inner rod to the bottom of the outer rod, a minimum distance value is set, when the detected distance is lower than the minimum distance value, a signal is transmitted to the PLC, the PLC controls the electric push rod to stretch out and draw back, the second tensioning roller moves in the direction of reducing the tensioning force of the label belt, and the label belt is prevented from being broken.

Preferably, the electric adjusting assembly further comprises a chute, the chute is fixedly arranged on the inner wall of the chassis, and the second tensioning roller is in sliding connection with the inner wall of the chute.

Preferably, the bottom of the case is provided with a blade and a cutting block for cutting off the label tape and a driving piece for driving the blade to move, and the blade and the cutting block are respectively positioned at two sides of the label tape.

Preferably, a contact switch is arranged on the inner wall of the chute and is electrically connected with the PLC, and the driving piece is electrically connected with the PLC.

Preferably, the bottom of the case is also provided with a driving piece which comprises a motor, a gear fixedly arranged at the output end of the motor and a rack fixedly arranged on the blade, and the gear is meshed with the rack for transmission.

Preferably, a feed inlet is arranged at the top of the case, and a discharge outlet is arranged at the bottom of the case.

Preferably, the feeding roller is located at a position, close to the feeding port, of the machine case, and the discharging roller is located at a position, close to the discharging port, of the machine case.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a side cross-sectional view of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2 "A";

in the figure:

1. a chassis; 101. a feed inlet; 102. a discharge port; 11. a feed roller; 12. an automatic adjustment assembly; 121. a first tension roller; 122. an outer rod; 123. an inner rod; 124. a spring; 126. a distance sensor; 13. an electric adjustment assembly; 131. a chute; 132. a second tension roller; 133. a contact switch; 14. a discharge roller; 151. a blade; 152. cutting into blocks; 153. a driving member; 2. a label tape.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 2, the present embodiment provides a tag tension adjusting device, which includes a case 1, a feed inlet 101 is provided at the top of the case 1, a discharge outlet 102 is provided at the bottom of the case 1, and two feed rollers 11, an automatic adjusting assembly 12, an electric adjusting assembly 13 and two discharge rollers 14 are sequentially provided from the feed inlet 101 to the discharge outlet 102.

The automatic adjusting assembly 12 comprises an outer rod 122, an inner rod 123 slidably connected with the outer rod 122, a first tensioning roller 121 rotatably connected with the inner rod 123, and springs 124 with two stress ends respectively fixed on the inner wall of the outer rod 122 and the end part of the inner rod 123;

the electric adjusting assembly 13 comprises a second tensioning roller 132, an electric push rod for driving the second tensioning roller 132 to move, and a chute 131, wherein the chute 131 is arranged on the inner wall of the chassis 1, and the second tensioning roller 132 is in sliding connection with the inner wall of the chute 131;

the label tape 2 enters the machine box 1 from the feeding hole 101, sequentially passes through a gap between the two feeding rollers 11, bypasses the first tensioning roller 121 and the second tensioning roller 132, passes through a gap between the two discharging rollers 14 and finally passes through the discharging hole 102; the label tape 2 is zigzag-shaped between the feeding roller 11, the first tension roller 121, the second tension roller 132, and the discharging roller 14 (as shown in fig. 2).

Referring to fig. 2, when the tension of the tag tape 2 is large, the tag tape 2 pulls the first tension roller 121 to the left, the inner rod 123 is retracted into the outer rod 122, the spring 124 is compressed, and when the tension is small, the inner rod 123 extends out of the outer rod 122 under the action of the spring 124, so as to automatically adjust the tension.

In this embodiment, a distance sensor 126 for detecting the distance from the inner rod 123 to the bottom wall of the outer rod 122 is disposed in the outer rod 122, the distance sensor 126 is located at the innermost end of the inner wall of the outer rod 122 (the inner wall on the left side of the outer rod 122 in fig. 2), and the distance sensor 126 is electrically connected to a PLC, which is electrically connected to the electric push rod.

Before use, a nearest distance (the smaller the distance is, the larger the tension of the label strip 2 is) is set for the distance sensor 126, when the distance sensor 126 detects that the distance from the inner rod 123 to the outer rod 122 is lower than the set distance, a signal is transmitted to the PLC, and the PLC controls the electric push rod to push the second tension roller 132 to move to the right side, so that the label strip 2 is loosened; when the detection distance exceeds the set distance, the PLC controls the electric push rod to push the second tensioning roller 132 to move to the left side for resetting.

Referring to fig. 3, in the embodiment, a blade 151 and a cutting block 152 for cutting off the label tape 2 and a driving member 153 for driving the blade 151 to move are disposed at the bottom of the casing 1 and outside the discharge port 101, and the blade 151 and the cutting block 152 are respectively disposed at two sides of the label tape 2; the blade 12 moves to the right and cooperates with the cutting block 152 to cut the label tape 2.

The driving member 153 includes a motor, a gear fixed at an output end of the motor, and a rack fixed on the blade 151, where the gear is meshed with the rack for transmission.

Referring to fig. 2 and 3, in the present embodiment, a contact switch 133 is disposed on an inner wall of the chute 131, the contact switch 133 is electrically connected to the PLC, the driving member 153 is electrically connected to the PLC, and the contact switch 133 is located on the right side of the chute 131; when the tensioning force of the tag strip 2 is overlarge, the second tensioning roller 132 is driven by the electric push rod to touch the contact switch 133, the contact switch 133 transmits signals to the PLC, the PLC controls the motor to rotate positively, the gear rack is meshed and driven, the blade 151 moves rightwards to shear the tag strip 2, the PLC controls the motor to rotate reversely again, the blade 151 is reset, and the shearing function is to prevent the tag strip from being broken in the case 1 and to prevent the disassembly and repair.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a label tension adjusting device, includes quick-witted case (1) and is located feed roll (11) and ejection of compact roller (14) in quick-witted case (1), its characterized in that, be equipped with automatic adjustment subassembly (12) and electronic adjustment subassembly (13) in machine case (1), automatic adjustment subassembly (12) include outer pole (122), with outer pole (122) sliding connection's interior pole (123), with interior pole (123) pivoted first tensioning roller (121) and two atress ends set firmly respectively in the spring (124) of the inner wall of outer pole (122) and the tip of interior pole (123), electronic adjustment subassembly (13) include second tensioning roller (132) and the electric putter of drive second tensioning roller (132), first tensioning roller (121) and second tensioning roller (132) butt are on label area (2); a distance sensor (126) for detecting the distance from the inner rod (123) to the bottom wall of the outer rod (122) is arranged in the outer rod (122), the distance sensor (126) is electrically connected with a PLC, and the PLC is electrically connected with the electric push rod.

2. The tag tension adjusting device according to claim 1, wherein the electric adjusting assembly (13) further comprises a chute (131), the chute (131) is formed in the inner wall of the chassis (1), and the second tension roller (132) is slidably connected with the inner wall of the chute (131).

3. A label tension adjusting device according to claim 2, wherein the bottom of the case (1) is provided with a blade (151) and a cutting block (152) for cutting off the label tape (2) and a driving member (153) for driving the blade (151) to move, the blade (151) and the cutting block (152) being located on both sides of the label tape (2), respectively.

4. A tag tension degree adjusting device according to claim 3, wherein a contact switch (133) is provided on the inner wall of the chute (131), the contact switch (133) is electrically connected to the PLC, and the driving member (153) is electrically connected to the PLC.

5. A tag tension degree adjusting device according to claim 3, wherein the driving member (153) comprises a motor, a gear fixed at an output end of the motor, and a rack fixed on the blade (151), and the gear is meshed with the rack for transmission.

6. The label tension adjusting device according to claim 1, wherein a feed inlet (101) is arranged at the top of the machine case (1), and a discharge outlet (102) is arranged at the bottom of the machine case (1).

7. A label tension adjusting device according to claim 6, wherein the feed roller (11) is located in the casing (1) near the feed inlet (101), and the discharge roller (14) is located in the casing (1) near the discharge outlet (102).