Packaging bottle label shrinking process and device

Abstract

The packaging bottle label shrinking process and device are characterized in that the packaging bottle label shrinking device comprises one or more stations arranged on a conveying belt; each station is provided with an independent closed steam chamber, and each steam chamber is composed of a pair of templates arranged on the left side and the right side; the two templates can move leftwards and rightwards to close or open the steam chamber, so that the closed steam chamber is formed by the mold cavities of the templates; a steam electromagnetic valve is arranged in the template and is used for guiding steam into the steam chamber when the steam chamber is closed and the steam electromagnetic valve is opened; the servo motor drives the fixing plate to drive one or more than one pair of templates to move along with the conveying belt, and can also drive one or more than one pair of templates to quickly return to the original position. The label shrinking device can meet the requirement that labels are shrunk and aligned to the positions of bottle bodies, deviation or dislocation of the positions of the labels is not prone to occurring, the label shrinking speed is high, and work efficiency is high.

Description

Technical Field

[0001] This invention pertains to methods and machinery for shrinking labels on packaging bottles, and relates to steps and equipment for applying label films to the bottle body using heat shrinkage. More specifically, it is a process and apparatus that uses steam to heat the packaging bottle, causing the label film to shrink and automatically adhere tightly to the bottle body.

[0002] Currently, packaging bottles are widely used in various fields such as food, pharmaceuticals, and cosmetics. After being manufactured, packaging bottles are generally stored in warehouses. The shrink labeling process is completed by the manufacturers in each field during the post-packaging stage.

[0003] Existing machines typically have multiple stations, using a conveyor belt to continuously transport bottles into the same steam chamber, causing the labels on the bottles to shrink and adhere tightly to the bottle body when heated, and then the conveyor belt takes the bottles out of the steam chamber.

[0004] Packaging bottles come in various shapes, including round and non-round. The shrink labeling process for round bottles is relatively simple. Since the label can automatically adjust during the heat shrinking process, and there is no need for alignment on the bottle itself, the labels can be neat and regular after application, requiring less sophisticated processes and machine structures.

[0005] The label reduction process for non-circular bottles, such as square and oval ones, is more complicated. When reducing the label on these bottles, there is a problem that the label needs to be aligned with the position of the bottle body. Because the front and back sides of the label are placed on the bottle at different times when they enter the air chamber, the overall heating is uneven, which often causes the label to shift or misalign. The defect rate of the reduced label is relatively high, and the existing machines and processes are difficult to meet the requirements of manufacturers. Summary of the Invention

[0006] The purpose of this invention is to provide a packaging bottle shrink label process and device, which is suitable for shrink labeling of round and non-round bottles. Especially for non-round bottles, it can meet the requirement of label alignment with the bottle body, and it is not easy for the label position to be offset or misaligned. It has a high shrink label qualification rate, faster shrink labeling speed and higher efficiency.

[0007] The shrink labeling process for packaging bottles in this invention is achieved through the following methods: A shrink labeling process for packaging bottles, characterized by the following steps: (1) Set up one or more workstations on the conveyor belt; (2) One or more labeled bottles are transported to the corresponding workstation by a conveyor belt; (3) One or more templates set on the left and right sides of the conveyor belt are joined together by moving left and right to form one or more closed steam chambers; (4) Steam enters the steam chamber through the control of the steam solenoid valve, so that the label is heated and the bottle is moved forward by the conveyor belt. At the same time, the servo motor drives one or more templates to move forward synchronously with the conveyor belt through the drive plate. The conveyor belt begins to bring the next or the next batch of labeled bottles to be processed into the corresponding work station. (5) When the label is tightly attached to the bottle body, the steam solenoid valve closes and no longer generates steam, the servo motor stops rotating and the fixed plate no longer moves forward, and one or more templates open the steam chamber by moving left and right, so that the conveyor belt continues to drive the bottle out of the steam chamber; (6) The servo motor drives one or more templates to move backward quickly back to their original position via the drive plate.

[0008] The bottle shrink label device of the present invention is implemented by the following scheme: A bottle shrink labeling device is characterized by comprising one or more workstations set on a conveyor belt; each workstation is provided with an independent and closed steam chamber, which is composed of a pair of templates located on the left and right sides; the two templates can move left and right to close or open the steam chamber, so that the mold cavity of the templates forms a closed steam chamber; the templates are equipped with steam solenoid valves for introducing steam, which are used to open the steam solenoid valves when the steam chamber is closed to introduce steam into the steam chamber; a servo motor can drive one or more templates to move with the conveyor belt through a drive plate, and can also drive one or more templates to quickly return to their original position.

[0009] In the aforementioned bottle shrink labeling device, each station is equipped with a base for securing the bottle.

[0010] This invention creates a packaging bottle shrink label process and device. The bottle label in the steam chamber is simultaneously subjected to the action of steam and shrinks. It is heated evenly and can shrink and stick tightly to the bottle body. The label is accurately aligned and is not prone to offset or misalignment.

[0011] The present invention relates to a packaging bottle shrink label process and device. The steam chamber is achieved by the closing and opening of two movable templates. When opening, the steam solenoid valve can be closed first, and the steam chamber can quickly dissipate heat when the templates are separated, causing its temperature to drop rapidly. Therefore, it can prevent the shrink labels of the next or next batch of bottles from being affected by the residual heat of the steam chamber and wrinkling, thus preparing for the shrink labeling of the next or next batch of bottles to be processed.

[0012] This bottle shrink labeling process and device utilizes a servo motor to drive one or more templates to move along the conveyor belt via a fixed plate. While the templates maintain the heat effect on the bottle shrink label, the conveyor belt can carry in the next or the next batch of bottles to be labeled. Furthermore, one or more templates can quickly return to their original position, greatly improving the speed and efficiency of the bottle shrink labeling process in the steam chamber.

[0013] Furthermore, in this bottle shrink labeling process and device, when the bottle shrink label is completed and it is conveyed out by the conveyor belt, the steam solenoid valve is closed and the steam chamber is open. There is no need to continuously supply steam to the steam chamber throughout the entire working process. Therefore, the device also has the advantage of energy saving.

[0014] Figure 1 This is a schematic diagram illustrating the specific implementation structure of the invention's bottle shrink label device; Figure 2 yes Figure 1 A schematic diagram of the vapor chamber opening structure of the bottle shrink label device. Detailed Implementation

[0015] The specific implementation method of the bottle shrink label device is further described below with reference to the accompanying drawings: Reference Figure 1 and Figure 2 The packaging bottle shrink label device of this embodiment includes a motor (1), a conveyor belt (2), several independent steam chambers (3) located at corresponding workstations on the conveyor belt, a cylinder (4) for driving the opening and closing of several steam chambers (3), and a servo motor (6) for driving the several steam chambers (3) to move back and forth via a fixed plate (5); each steam chamber (3) is composed of two templates (31) arranged on the left and right sides as a pair; each template (31) is equipped with a track (33) and is mounted on the track (33) via a slider (32), the cylinder (4) can drive the template (31) to move left and right along the track (33) via the slider (32), so that the two templates (31) on the left and right sides are aligned or separated, when the two templates (31) on the left and right sides are aligned, a closed space can be formed by the mold cavity (3a) of the template (31); each template (31) 1) It is equipped with a steam solenoid valve (34) for introducing steam. When the steam solenoid valve (34) is engaged in the template (31), it opens to introduce steam from the steam storage tank (8) into the closed space (3a). The servo motor (6) drives the fixed plate (5) along the track (7) through gears and racks, which can drive each pair of templates (31) together with the slider (32), the track (33), the cylinder (4) and the steam solenoid valve (34) to move with the conveyor belt (2). It can also drive the fixed plate (5) along the track (7) to drive each pair of templates (31) together with the slider (32), the track (33), the cylinder (4) and the steam solenoid valve (34) to quickly return to the original position. In addition, when working, the bottle (10) is placed on the conveyor belt (2) through the bottom (9). The bottle (10) can be fixed and aligned by the concave and convex between the bottom (9) and the bottle (10).

[0016] The specific process steps are described below: (A) Set up several workstations on the conveyor belt (five in this example); (B) Several labeled bottles (10) are placed on the conveyor belt (2) by the bottom support (9), and are sent to the corresponding work station by the motor (1) through the conveyor belt (2); (C) Several pairs of templates (31) set on the left and right sides of the conveyor belt (2) can move left and right along their respective tracks (33) under the drive of the cylinder (4) to match each other, creating a closed gas chamber (3) for each bottle (10) with a label on it at each work station. (D) Open the steam solenoid valve (34) set in each template (31) to send steam from the steam storage tank (8) into the steam chamber (3) so that the label begins to be heated; (E) The motor (1) drives the bottle (10) forward through the conveyor belt (2). At the same time, the servo motor (6) drives several pairs of templates (31) to move forward synchronously with the conveyor belt (2) along the track (7) through the drive fixing plate (5). The conveyor belt (2) begins to bring the next batch of labeled bottles (10) to be processed into the corresponding work station. (F) When the label is tightly attached to the bottle body, the steam solenoid valve (34) closes and no longer generates steam, the servo motor (6) stops rotating, the fixed plate (5) no longer moves forward, and several pairs of templates (31) move left and right along their respective tracks (33) through their respective sliders (32) driven by the cylinder (4) to open the steam chamber (3), so that the conveyor belt (2) continues to drive the bottle (10) out of the steam chamber (3); (G) The servo motor (6) drives the fixed plate (5) to move along the track (7) and drive several pairs of templates (31) to move backward quickly back to the original position.

Claims

1. A bottle shrink label device, characterized in that, It includes one or more workstations set on a conveyor belt; each workstation has an independent and closed steam chamber, which is composed of a pair of templates on the left and right sides; the two templates can move left and right to close or open the steam chamber, so that the mold cavity of the templates forms a closed steam chamber; the templates are equipped with steam solenoid valves to introduce steam, which are used to open the steam solenoid valves when the steam chamber is closed to introduce steam into the steam chamber; a servo motor can drive one or more templates to move with the conveyor belt through a drive plate, and can also drive one or more templates to quickly return to the original position.

2. The bottle shrink label device according to claim 1, characterized in that, Each workstation is equipped with a base to secure the bottles.

3. A shrink labeling process for packaging bottles, characterized in that, Follow these steps: (1) Set up one or more workstations on the conveyor belt; (2) One or more labeled bottles are transported to the corresponding workstation by a conveyor belt; (3) One or more templates set on the left and right sides of the conveyor belt are joined together by moving left and right to form one or more closed steam chambers; (4) Steam enters the steam chamber through the control of the steam solenoid valve, so that the label is heated and the bottle is moved forward by the conveyor belt. At the same time, the servo motor drives one or more templates to move forward synchronously with the conveyor belt through the drive plate. The conveyor belt begins to bring the next or the next batch of labeled bottles to be processed into the corresponding work station. (5) When the label is tightly attached to the bottle body, the steam solenoid valve closes and no longer generates steam, the servo motor stops rotating and the fixed plate no longer moves forward, and one or more templates open the steam chamber by moving left and right, so that the conveyor belt continues to drive the bottle out of the steam chamber; (6) The servo motor drives one or more templates to move backward quickly back to their original position via the drive plate.

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