Labeling and compression structure for plastic bottle processing

Abstract

This utility model discloses a labeling and repressing structure for plastic bottle processing, belonging to the technical field of plastic bottle processing equipment. It includes a rotating base with several turntables spaced apart on the outer periphery of the rotating part of the base, each turntable having a corresponding pneumatic clamp above it. Plastic bottles are installed between the pneumatic clamps and the turntables. A labeling machine is located on the side of the rotating base, containing a material belt pulley and a labeling wheel. The outer surface of the labeling wheel is wound with a material belt bearing several label strips. A repressing structure is located behind the labeling machine, including front and rear mounting plates, with downward-facing support legs at both ends of the mounting plates. This labeling and repressing structure can repress the heat-applied label strips, further improving labeling stability, and simultaneously cool the outer surface of the label strips, improving their adhesion to the plastic bottle, thus preventing the label strips from falling off during subsequent plastic bottle transportation.

Description

Technical Field

[0001] This utility model relates to the technical field of plastic bottle processing equipment, and more specifically, to a labeling and pressing structure for plastic bottle processing. Background Technology

[0002] Based on environmental protection principles, the recycling of recyclable plastic bottles can be categorized according to their material. Currently, recyclable plastic bottles are mainly made of PET, HDPE, and PP. Each type of recyclable plastic bottle is processed using corresponding recycling methods: For PET, the bottles typically undergo crushing, washing, and impurity removal before recycling. For HDPE, secondary recycling processes are required, typically involving mechanical removal, grading, and degreasing. For PP, physical recycling methods are primarily used, requiring washing and impurity removal after recycling. The recycling of recyclable plastic bottles reduces the environmental damage caused by plastics and also plays a positive role in saving resources and reducing energy consumption.

[0003] During the processing of plastic bottles made of the aforementioned materials, the plastic bottles formed by the blow molding machine need to be labeled. For example, medicine bottles need to have label strips attached to the side of the bottle. In the current technology, only labeling rollers are used for one-time labeling. During the subsequent transportation of plastic bottles, the label strips may fall off. There are two main reasons for this: first, the label strips are not cooled and are applied by heat; second, there is no corresponding pressure structure designed to further press and bond the label strips. Utility Model Content

[0004] The purpose of this invention is to provide a labeling and repressing structure for processing plastic bottles. This labeling and repressing structure can repress the hot-applied label strip to further improve the labeling stability. At the same time, it can cool the outer side of the label strip to improve its adhesion to the plastic bottle body, thus generally preventing the label strip from falling off during subsequent transportation of the plastic bottle.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A labeling and repressing structure for processing plastic bottles includes a rotating base. Several turntables are spaced apart on the outer periphery of the rotating part of the rotating base, and a pneumatic retainer is positioned directly above each turntable. Plastic bottles are installed between the pneumatic retainer and the turntables. A labeling machine is located on the side of the rotating base. The labeling machine contains a material belt pulley and a labeling wheel. A material belt with several label strips is wound around the outer side of the labeling wheel. A repressing structure is located behind the labeling machine. The repressing structure includes front and rear mounting plates, with downward-facing support legs at both ends of the mounting plates. A cylinder is located between the front and rear mounting plates. Two parallel telescopic piston rods are located in front of the cylinder, and the front ends of the telescopic piston rods are connected to both ends of the outer side of an arc-shaped repressing frame.

[0007] As a further optimization of this solution, a circulating water tank is provided above the cylinder, a condenser is provided on the rear side of the circulating water tank, circulating water pipes are provided on both sides of the circulating water tank, and one side of the circulating water pipe is connected to the circulating water pump. Flexible telescopic pipes are connected to the body of the circulating water pipes.

[0008] As a further optimization of this solution, two through-type cooling water pipes are installed in the recessed area on the inner side of the arc-shaped pressure frame. Both ends of the two cooling water pipes are connected to a cylindrical joint, and the cylindrical joint is connected to a circulating water pipe.

[0009] As a further optimization of this solution, the upper and lower raised sections on the inner side of the arc-shaped pressure frame correspond to the upper and lower end areas of the plastic bottle label, and the upper and lower cooling water pipes correspond to the middle area of ​​the plastic bottle label. The length of the arc-shaped pressure frame covers at least two turntable installation areas.

[0010] As a further optimization of this solution, the bottom of the support leg is fixed to the factory ground, and the pressure-reinforcing structure is equipped with a control panel.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0012] In this invention, a special re-pressing structure is designed around the existing rotating seat and labeling machine. On the one hand, the upper and lower protruding sections on the inner side of the arc-shaped re-pressing frame and the upper and lower cooling water pipes on the inner side perform a more comprehensive physical re-pressing operation on the plastic bottle with the label strip affixed, further compacting the label strip. On the other hand, cooling water is introduced into the upper and lower cooling water pipes to cool down the heat-applied label strip, improving the adhesion between the label strip and the plastic bottle body. Overall, this avoids the label strip falling off during the subsequent transportation of the plastic bottle. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention (with part of the casing removed);

[0014] Figure 2 This is a schematic diagram of the rear structure of the composite pressure structure of this utility model (with part of the casing removed);

[0015] Figure 3 This is a schematic diagram of the arc-shaped pressure frame connection structure of this utility model (with part of the casing removed);

[0016] In the diagram: 1. Rotating seat; 2. Turntable; 3. Pneumatic clamp; 4. Plastic bottle; 5. Label strip; 6. Labeling wheel; 7. Labeling machine; 8. Circulating water tank; 9. Cylinder; 10. Mounting plate; 11. Support leg; 12. Condenser; 13. Circulating water pump; 14. Circulating water pipe; 15. Flexible telescopic pipeline; 16. Telescopic piston rod; 17. Arc-shaped pressure frame; 18. Column joint; 19. Cooling water pipe. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0018] To address the issue that label strips may fall off during the subsequent transportation of plastic bottles after labeling by existing labeling machines;

[0019] like Figure 1 As shown, the rotating part includes a rotating base 1. Several turntables 2 are spaced apart on the outer periphery of the rotating part of the rotating base 1, and a pneumatic clamping seat 3 is provided directly above each turntable 2. A plastic bottle 4 is installed between the pneumatic clamping seat 3 and the turntable 2. A labeling machine 7 is provided on the side of the rotating base 1. The labeling machine 7 is equipped with a material belt wheel and a labeling wheel 6. A material belt with several identification strips 5 is wound on the outer side of the labeling wheel 6. The material belt is wound on the material belt wheel.

[0020] like Figure 2 As shown, a repressing structure is provided at the rear of the labeling machine 7. The repressing structure includes front and rear mounting plates 10, and support legs 11 are provided at both ends of the mounting plates 10. A cylinder 9 is provided between the front and rear mounting plates 10. Two parallel telescopic piston rods 16 are provided in front of the cylinder 9. The front ends of the telescopic piston rods 16 are connected to both ends of the outer side of the arc-shaped repressing frame 17.

[0021] A circulating water tank 8 is provided above the cylinder 9, and a condenser 12 is provided on the rear side of the circulating water tank 8. Circulating water pipes 14 are provided on both sides of the circulating water tank 8, and one side of the circulating water pipe 14 is connected to the circulating water pump 13. Flexible telescopic pipes 15 are connected to the body of the circulating water pipes 14 to cooperate with the telescopic piston rod 16 to move the arc-shaped pressure frame 17 back and forth.

[0022] like Figure 3As shown, two cooling water pipes 19 are installed in the recessed area on the inner side of the arc-shaped pressure frame 17. Both ends of the two cooling water pipes 19 are connected to the cylindrical joint 18, and the cylindrical joint 18 is connected to the external circulating water pipe 14.

[0023] Specifically, in actual operation, the cylinder 9 is first controlled by the control panel to adjust the extension of the telescopic piston rod 16 to accommodate plastic bottles 4 of different sizes. This ensures that the upper and lower protruding sections on the inner side of the arc-shaped pressure frame 17 correspond to the upper and lower labeling areas of the plastic bottle 4, and the upper and lower cooling water pipes 19 correspond to the middle labeling area of ​​the plastic bottle 4. The length of the arc-shaped pressure frame 17 covers at least two turntable 2 installation areas. The bottom of the support leg 11 is fixed to the factory ground. The plastic bottle 4 is installed between the pneumatic card holder 3 and the turntable 2 in sequence. As the rotating seat 1 rotates, the bottle 4 first passes through the labeling wheel 6, and the labeling strip 5 is affixed to the outer side of the plastic bottle 4. Then, the labeled plastic bottle 4 enters the inner side of the arc-shaped pressure frame 17 and is pressurized by the upper and lower protruding sections and the upper and lower cooling water pipes 19. At the same time, the circulating water pump 13 is started by the control panel to input circulating cooling water into the upper and lower cooling water pipes 19 to cool and lower the heat-applied labeling strip, thereby improving the adhesion between the labeling strip and the plastic bottle.

[0024] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0025] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A labeling and pressing structure for processing plastic bottles, comprising a rotating base, wherein a plurality of turntables are spaced apart on the outer periphery of the rotating part of the rotating base, and a pneumatic retainer is correspondingly provided above each turntable; a plastic bottle is installed between the pneumatic retainer and the turntable; a labeling machine is provided on the side of the rotating base; the labeling machine has a material belt pulley and a labeling wheel inside; a material belt with a plurality of marking strips is wound around the outer side of the labeling wheel, characterized in that: The labeling machine is provided with a pressure-reinforcing structure at the rear. The pressure-reinforcing structure includes front and rear mounting plates, and support legs are provided at both ends of the mounting plates. A cylinder is provided between the front and rear mounting plates. Two parallel telescopic piston rods are provided in front of the cylinder. The front ends of the telescopic piston rods are connected to both ends of the outer side of the arc-shaped pressure-reinforcing frame.

2. The labeling and pressing structure for processing plastic bottles according to claim 1, characterized in that: A circulating water tank is provided above the cylinder, and a condenser is provided on the rear side of the circulating water tank. Circulating water pipes are provided on both sides of the circulating water tank, and one side of the circulating water pipe is connected to the circulating water pump. Flexible telescopic pipes are connected to the body of the circulating water pipes.

3. The labeling and pressing structure for processing plastic bottles according to claim 2, characterized in that: The inner side recessed area of ​​the arc-shaped pressure frame is equipped with two through-hole cooling water pipes, one above the other. Both ends of the two cooling water pipes are connected to a cylindrical joint, and the cylindrical joint is connected to a circulating water pipe.

4. The labeling and pressing structure for processing plastic bottles according to claim 3, characterized in that: The upper and lower raised sections on the inner side of the arc-shaped pressure frame correspond to the upper and lower end areas of the plastic bottle label, and the upper and lower cooling water pipes correspond to the middle area of ​​the plastic bottle label. The length of the arc-shaped pressure frame covers at least two turntable installation areas.

5. The labeling and re-pressing structure for processing plastic bottles according to claim 4, characterized in that: The bottom of the support legs is fixed to the factory ground, and the pressure-reinforcing structure is equipped with a control panel.

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