Reversible label bonding and gluing device

Abstract

The utility model discloses a reversible bonding and gluing device for labels, which relates to the technical field of labeling equipment, is mounted on a rack and comprises a gluing seat, a glue outlet nozzle is fixedly mounted on the gluing seat, and a glue painting structure is fixedly mounted on the glue outlet nozzle; the glue outlet nozzle is in pipeline connection with a glue outlet control valve, the glue outlet control valve is in pipeline connection with a glue tank, and glue easy to remove is stored in the glue tank; and a gluing feeding mechanism is arranged between the gluing seat and the rack. According to the utility model, the easy-to-remove glue is brushed at the front end of the label through the glue brushing structure, and the easy-to-remove glue can temporarily form adhesion between the front end of the label and the bag roll in the labeling process, so that normal rolling and pasting are ensured. In the later use process, when the label is removed, the glue easy to remove cannot be firmly adhered, the label and the plastic bag are easily separated, and therefore the purpose of removing the label in a lossless mode is achieved.

Description

Technical Field

[0001] This utility model relates to the field of labeling equipment technology, and in particular to a reversible adhesive coating device for labels. Background Technology

[0002] Hand-tear plastic bags are rolled into rolls in a specified quantity at the end of production, and each roll needs to be sealed to prevent the bag ends from unraveling. Large label sealing is one of the sealing methods, and it is becoming increasingly popular due to its advantages such as good product information display, high aesthetic appeal, and good protective effect. In plastic bag production, the diameter of the rolled bags is mostly less than 6cm, and the winding speed of each roll is very fast. Based on this, the inventor proposed a roller-applying device to automate the bag roll forming process and achieve automatic labeling. This roller-applying device uses three rollers to clamp the bag roll, and the rollers drive the bag roll to rotate. When the label is delivered to the position between the bag roll and one of the rollers, the label can be automatically wound onto the bag roll. The label requires both the front and rear ends to have adhesive functionality. The front adhesive ensures that the label adheres to the bag roll after it is initially wound onto the bag roll, allowing the label to roll along with the bag roll. The rear adhesive ensures that the label adheres to the inner label ring after it is fully wound onto the bag roll, forming a seal. Currently, both the front and back of the label adhere to the plastic bag using double-sided tape. However, it has been found that the double-sided tape adheres very firmly to the plastic bag. When opening the first plastic bag, the label may tear due to the strong adhesion, affecting the user experience. Therefore, a method for removing the label without damage is needed to improve this situation. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a label reversible adhesive coating device, which can ensure the adhesion between the label and the bag roll during the labeling process, and facilitate the removal of the label without damage during use.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a label reversible adhesive coating device, installed on a frame, including a coating base, on which a glue nozzle is fixedly installed, and on which a glue brushing structure is fixedly installed; the glue nozzle pipeline is connected to a glue control valve, and the glue control valve pipeline is connected to a glue tank, which stores easily removable glue; a coating feed mechanism is provided between the coating base and the frame.

[0005] As a preferred technical solution, the colloid coating structure includes a coating brush.

[0006] As a preferred technical solution, a nozzle mounting sleeve is fixedly provided on the glue application base, the glue outlet nozzle is inserted into the nozzle mounting sleeve, and the nozzle mounting sleeve is provided with a nozzle radial bolt for fastening the glue outlet nozzle.

[0007] As a preferred technical solution, the glue applicator is fixedly provided with a glue nozzle connector, the glue nozzle connector is provided with a glue tube installation port and a glue nozzle installation port, and the glue nozzle is fixedly installed at the glue nozzle installation port.

[0008] As a preferred technical solution, the glue dispensing control valve and the glue tank are fixedly installed on the frame.

[0009] As a preferred technical solution, the adhesive feeding mechanism includes an adhesive feeding seat movably mounted on the frame along the adhesive feeding direction, and a feeding driver is provided between the adhesive feeding seat and the frame; the adhesive feeding seat is vertically movably mounted on the adhesive feeding seat, and a lifting driver is provided between the adhesive feeding seat and the adhesive feeding seat.

[0010] As a preferred technical solution, the easily removable adhesive is a water-soluble adhesive.

[0011] By adopting the above technical solution, the reversible label adhesive applicator, mounted on a frame, includes an applicator base with a glue nozzle fixedly installed on it. A glue application structure is fixedly installed on the glue nozzle. The glue nozzle is connected to a glue control valve, which is connected to a glue tank containing easily removable adhesive. An adhesive feeding mechanism is provided between the applicator base and the frame. This invention uses a glue application structure to apply easily removable adhesive to the front end of the label. During labeling, the easily removable adhesive temporarily adheres to the front end of the label to the bag roll, ensuring proper label application. In later use, when removing the label, the easily removable adhesive does not adhere too firmly, and the label easily separates from the plastic bag, thus achieving non-destructive label removal. Attached Figure Description

[0012] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein:

[0013] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of this utility model;

[0014] Figure 2 yes Figure 1 Enlarged structural diagram of the adhesive application base;

[0015] Figure 3 yes Figure 1 Paint the final state image onto the label;

[0016] Figure 4 yes Figure 3 Diagram showing the state of the glue feeder and glue holder when they are away from the label;

[0017] Figure 5 This is a schematic diagram of the structure of Embodiment 1 of this utility model used on a labeling machine;

[0018] Figure 6 This is a schematic diagram of the structure of the dispensing nozzle in Embodiment 2 of this utility model.

[0019] In the diagram: 1-Frame; 2-Glue base; 21-Glue nozzle; 22-Glue application structure; 23-Glue nozzle mounting sleeve; 24-Glue nozzle radial bolt; 25-Glue nozzle connector; 3-Glue dispensing control valve; 4-Glue tank; 5-Glue application feeding mechanism; 51-Glue application feeding seat; 52-Feed driver; 53-Lifting driver; 7-Rolling device; 8-Bag roll; 9-Label. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0021] Example 1: As Figures 1 to 5 As shown, the reversible adhesive coating device for labels is installed on the frame 1. The frame 1 can be the frame 1 of the labeling machine, or it can be a separate frame 1 set up in this embodiment. There is no limitation here.

[0022] This device includes an adhesive application base 2, on which an adhesive nozzle 21 is fixedly installed, and on which an adhesive application structure 22 is fixedly installed; the adhesive nozzle 21 is connected to an adhesive dispensing control valve 3, and the adhesive dispensing control valve 3 is connected to an adhesive tank 4, which stores easily removable adhesive; an adhesive feeding mechanism 5 is provided between the adhesive application base 2 and the frame 1.

[0023] When this device is installed on the frame 1, the adhesive feeding mechanism 5 drives the adhesive brushing structure 22 to apply easy-to-remove adhesive to the front end of the label 9. During the brushing process, the adhesive dispensing control valve 3 controls the adhesive supply. After the label 9, with the easy-to-remove adhesive applied to its front end, is delivered to the rolling device 7, it can achieve good temporary adhesion to the bag roll 8 due to its own adhesiveness and the squeezing action between the bag roll 8 and the roller. The label 9 can still be rolled up together with the bag roll 8 to ensure normal rolling and pasting. In later use, when removing the label 9, the easy-to-remove adhesive will not be too strong, and the label 9 can be easily separated from the plastic bag, thus achieving the purpose of removing the label 9 without damage.

[0024] The easily removable adhesive can be an adhesive with a certain degree of viscosity that decreases significantly after curing, such as a water-soluble adhesive. Alternatively, it can be an adhesive with low viscosity that is easy to remove later, such as an acrylic adhesive. These are all within the scope of easily removable adhesives and are not limited in this embodiment. The pressure of the adhesive supplied at the dispensing nozzle 21 can be achieved by installing a glue pump between the dispensing control valve 3 and the glue tank 4, or by supplying high-pressure gas into the glue tank 4. This is not limited here.

[0025] The adhesive coating structure 22 described in this embodiment includes an adhesive brush, which applies easily removable adhesive to the label 9 using the brush bristles. Of course, the adhesive coating structure 22 can also be an adhesive roller or similar device.

[0026] Preferably, such as Figure 2 As shown, a nozzle mounting sleeve 23 is fixedly provided on the glue application base 2, and the glue dispensing nozzle 21 is inserted into the nozzle mounting sleeve 23. The nozzle mounting sleeve 23 is provided with a nozzle radial bolt 24 for fastening the glue dispensing nozzle 21. Through the above insertion and the fixation of the nozzle radial bolt 24, it is convenient to disassemble and clean the glue dispensing nozzle 21, and it is also convenient to adjust the coating height of the glue application structure 22, which provides high convenience and flexibility.

[0027] Preferably, such as Figure 5 As shown, the glue dispensing control valve 3 and the glue tank 4 are fixedly installed on the frame 1 to reduce the weight of the accessories on the glue application base 2, so as to enable more precise control of each action of the brushing feed, which also facilitates smooth glue application.

[0028] The adhesive feeding mechanism 5 described in this embodiment includes an adhesive feeding seat 51 movably mounted on the frame 1 along the adhesive feeding direction, and a feeding driver 52 is provided between the adhesive feeding seat 51 and the frame 1; the adhesive seat 2 is vertically movably mounted on the adhesive feeding seat 51, and a lifting driver 53 is provided between the adhesive seat 2 and the adhesive feeding seat 51.

[0029] During the application of adhesive, the lifting driver 53 drives the adhesive application seat 2 to descend to a designated position, such as... Figure 1 As shown, the adhesive coating structure 22 contacts the front end of the label 9, and the adhesive dispensing control valve 3 opens to supply adhesive. The feed driver 52 drives the adhesive feeding seat 51 to move along the adhesive coating direction, as shown. Figure 3 As shown, the adhesive brushing structure 22 can apply easily removable adhesive to the label 9. After applying a specified length, the adhesive dispensing control valve 3 cuts off the adhesive supply, and the lifting driver 53 drives the adhesive application seat 2 to rise, causing the adhesive brushing structure 22 to leave the label 9. The feed driver 52 drives the adhesive application feed seat 51 to move further laterally, as shown... Figure 4As shown, the glue-applying feed seat 51, glue-applying seat 2, etc. are positioned above the label 9 so that other mechanisms can pick up the glued label 9 and deliver it to the rolling device 7.

[0030] Both the lifting driver 53 and the feed driver 52 can be implemented using a drive cylinder or a motor in conjunction with a transmission structure. No restriction is imposed here. In this embodiment, the lifting driver 53 is illustrated using a drive cylinder, and the feed driver 52 is illustrated using a motor in conjunction with a chain drive.

[0031] Example 2: Figure 6 As shown, the difference between this embodiment and Embodiment 1 lies in the installation method of the dispensing nozzle 21. More specifically, in this embodiment, the dispensing base 2 is fixedly provided with a nozzle connector 25. The nozzle connector 25 has a tube mounting port and a nozzle mounting port, and the dispensing nozzle 21 is fixedly installed at the nozzle mounting port. In actual use, the nozzle connector 25 can be a Luer connector, which has an external screw connector and an internal screw connector. The external screw connector is the tube mounting port, and the tube is directly sleeved on the external screw connector. Correspondingly, the internal screw connector is the nozzle mounting port, and the dispensing nozzle 21 is threaded onto the internal screw connector. This method also facilitates the disassembly, assembly, and cleaning of the dispensing nozzle 21. This embodiment only lists one implementation of the Luer connector, but those skilled in the art will recognize that the setting of the nozzle connector 25 and the connection method of the tube and the dispensing nozzle 21 can be varied in many ways, all of which are within the protection scope of this embodiment.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A label reversible adhesive applicator mounted on a frame, characterized in that: The device includes a glue applicator, on which a glue nozzle is fixedly mounted, and on which a glue application structure is fixedly mounted; the glue nozzle is connected to a glue control valve, and the glue control valve is connected to a glue tank containing easily removable glue; a glue feeding mechanism is provided between the glue applicator and the frame.

2. The label reversible adhesive coating apparatus of claim 1, wherein: The colloid coating structure includes a coating brush.

3. The label reversible adhesive coating apparatus of claim 1, wherein: The glue applicator is fixedly provided with a glue nozzle mounting sleeve, and the glue outlet nozzle is inserted into the glue nozzle mounting sleeve. The glue nozzle mounting sleeve is provided with a glue nozzle radial bolt for fastening the glue outlet nozzle.

4. The label reversible adhesive coating apparatus of claim 1, wherein: The glue applicator is fixedly provided with a glue nozzle connector, which is provided with a glue tube installation port and a glue nozzle installation port. The glue nozzle is fixedly installed at the glue nozzle installation port.

5. The label reversible adhesive coating apparatus of claim 1, wherein: The glue dispensing control valve and the glue tank are fixedly mounted on the frame.

6. The label reversible adhesive coating apparatus of claim 1, wherein: The adhesive feeding mechanism includes an adhesive feeding seat movably mounted on the frame along the adhesive feeding direction, and a feeding driver is provided between the adhesive feeding seat and the frame; the adhesive feeding seat is vertically movably mounted on the adhesive feeding seat, and a lifting driver is provided between the adhesive feeding seat and the adhesive feeding seat.

7. The label reversible adhesive coating apparatus according to any one of claims 1 to 6, wherein: The easily removable adhesive is a water-soluble adhesive.

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