Negative pressure adsorption conveying device and labeling equipment

Abstract

The utility model relates to a negative pressure adsorption conveying device and labeling equipment, the negative pressure adsorption conveying device is provided with a conveying chain and a supporting seat, the conveying chain can move along the longitudinal direction of the supporting seat so as to convey a container to be labeled, and a hollow cavity is formed in a main body of the supporting seat. The utility model relates to a conveyor chain for a hollow chamber, comprising a bottom wall connected to one another in an airtight manner, two side walls opposite one another and two end walls, a conveyor chain extending parallel to the hollow chamber and covering the upper side of the hollow chamber over the entire length of the hollow chamber, said conveyor chain being joined to the upper side of the hollow chamber in an airtight manner, the conveyor chain comprising a plurality of chain plates, each chain plate is complementary with the adjacent chain plate in shape, at least part of the chain plates are provided with through holes, the hollow cavity is communicated with the external environment through the through holes on one hand and connected with an air blower through an airtight pipeline on the other hand, and negative pressure can be formed in the hollow cavity by means of the air blower.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the sleeve label technical field especially, relate to a kind of negative pressure suction conveying device and sleeve label equipment. BACKGROUND

[0002] Sleeve labeler is widely used in food, beverage, daily-use chemical industry and pharmaceutical fields.Sleeve labeler can automatically cut off label tape and accurately sleeve into label, and cooperate with subsequent heat shrinkage process to fix label on cylindrical container perfectly.Sleeve labeler has excellent high-speed stability performance.Now, automatic high-speed sleeve label equipment is widely used in various fields.

[0003] For lighter containers or even heavier containers, position deviation or bottle falling may occur due to vibration, impact, start-stop or air resistance during high-speed conveying in sleeve label assembly line, which affects sleeve label accuracy and even cannot complete sleeve label action, and easily produces defective products.

[0004] In addition, insufficient fixation between container and conveying chain also limits container conveying speed, affects production rhythm, and further leads to low sleeve label efficiency.

[0005] Chinese utility model patent CN203558274U discloses a shrink film sleeve labeler, which comprises a first conveying belt and a second conveying belt arranged in parallel, a sleeve label mechanism arranged between the first conveying belt and the second conveying belt, an optical sensor and a first push rod arranged on the outer side of the first conveying belt, a second push rod arranged on the outer side of the second conveying belt, and a negative pressure suction port arranged on the second push rod.However, stable suction cannot be achieved during the entire conveying process.

[0006] Therefore, it is urgent to improve the conveying device for sleeve labeler and sleeve labeler in the prior art to enable conveying of lighter containers or conveying of containers of various specifications at a higher speed. UTILITY MODEL CONTENTS

[0007] The utility model aims to provide a negative pressure suction conveying device and a sleeve labeler with the negative pressure suction conveying device, which can convey lighter containers on sleeve label assembly line or convey containers of various qualities at a higher speed while ensuring the position and standing posture of containers on conveying chain.

[0008] The above technical problem is solved by a negative pressure adsorption conveying device, which comprises a conveying chain and a supporting seat, the conveying chain being capable of moving along the longitudinal direction of the supporting seat to convey containers to be labeled, a hollow chamber being configured in the main body of the supporting seat, the hollow chamber comprising a bottom wall, two mutually opposite side walls and two end walls which are connected in an air-tight manner, the conveying chain extending in parallel with the hollow chamber and covering the upper side of the hollow chamber in the entire length of the hollow chamber, wherein the conveying chain is connected to the upper side of the hollow chamber in an air-tight manner, the conveying chain comprising a plurality of chain plates, each chain plate being complementary in shape to the adjacent chain plate, a through hole being designed on at least some of the chain plates, wherein the hollow chamber is connected to the external environment through the through hole and is connected to a blower through an air-tight pipeline, and a negative pressure is formed in the hollow chamber by the blower. The chain plates are complementary in shape, so that the entire conveying chain maintains the best air-tight effect except for the through holes. During the conveying process, the containers are placed on the chain plates in a standing manner, and the bottom of the container covers the through hole on the chain plate, so that a negative pressure is generated in the hollow chamber under the action of the blower, thereby generating an adsorption effect on the container, so that the container is more stable during the conveying process. Therefore, on the one hand, the position of the container can be ensured not to deviate during the conveying process, and on the other hand, the conveying speed can be increased to improve the efficiency.

[0009] According to a preferred scheme, a through hole is provided on each chain plate, or n chain plates without through holes are provided between every two chain plates with through holes, wherein n is any integer between 1 and 5. One container is placed on each chain plate with a through hole. That is, the through hole is provided only on the chain plate where the container is to be arranged. Therefore, the through hole can be provided on each chain plate according to the arrangement of the containers, or the through hole can be provided only on part of the chain plates.

[0010] Advantageously, four through holes are provided in the center of each chain plate with a through hole. The four through holes are provided in the center to ensure that all the through holes can be covered by the bottom of the container, thereby improving the adsorption effect; the four through holes are uniformly arranged to evenly distribute the adsorption force and prevent the container from tilting or falling over.

[0011] Preferably, the bottom wall, the two mutually opposite side walls and the two end walls are integrally configured or connected in a material bonding manner. In this way, the air-tightness of the hollow space is ensured, and the adsorption effect is improved.

[0012] Further advantageously, a guide groove for receiving the conveying chain is provided on each of the two mutually opposite side walls, and the two side edges of the conveying chain respectively extend into the guide grooves as viewed in the transverse direction of the conveying chain. The stability of the conveying chain is improved by the guide grooves, and the sealing effect is also improved.

[0013] According to a preferred embodiment, a sealing structure is arranged between the guiding groove and the side of the conveying chain. This further improves the sealing effect.

[0014] It is particularly advantageous if the sealing structure is a sealing strip or a sealing felt.

[0015] According to another preferred embodiment, air outlet holes are arranged on the side wall or the bottom wall of the hollow chamber, the hollow chamber is connected to the air blower via the air outlet holes, the air blower is connected to the controller and the power of the air blower can be adjusted by the controller. By adjusting the power of the air blower, the negative pressure can be adjusted according to the mass, size, etc. of the container to be conveyed, which can save energy and make the negative pressure suction conveying system suitable for conveying containers of various specifications, thereby improving the application range.

[0016] It is also advantageous if a plurality of air outlet holes are uniformly arranged on the side wall or the bottom wall, and each air outlet hole is connected to the air blower via a pipeline. In this way, the suction force of each section can be substantially uniform.

[0017] The utility model also provides a sleeve label equipment, the sleeve label equipment includes above-mentioned negative pressure suction conveying device.

[0018] The utility model discloses the beneficial effect reached: through setting up negative pressure suction conveying device, additional suction force is generated to the container in the process of conveying the container, and the stability of the container can be improved through the suction force and the container does not occur position deviation in the conveying process, thereby ensuring sleeve label accuracy, and the label deviation, distortion etc. do not appear. In addition, because the container can be more firmly fixed on the conveying chain, on the one hand, the light quality container can be reliably conveyed, and on the other hand, the container can also be conveyed at a higher speed, thereby improving the sleeve label efficiency of whole sleeve label assembly line. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the schematic view of negative pressure suction conveying device from oblique upper side in an embodiment of the utility model;

[0020] Figure 2 It is Figure 1 The top view of negative pressure suction conveying device shown in the figure;

[0021] Figure 3 It is the structural schematic diagram of chain plate in the embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0023] On the existing sleeve labeling pipeline, the containers to be sleeved are usually placed on the conveying chain only by their own gravity, however, for some containers with smaller mass (such as smaller plastic containers, such as Yali Du plastic bottles, light and thin aluminum film cans, etc.), the position deviation or overturning may easily occur due to external influence during the conveying process, resulting in problems in sleeve labeling. In addition, in the high-speed sleeve labeling pipeline, the conveying speed of the containers is high, and the impact, vibration and other situations are also more frequent, therefore, even for the containers with larger mass, the position deviation cannot be reliably prevented only by the self-gravity. Therefore, in many cases, the conveying speed has to be reduced, which affects the production rhythm, and further leads to low sleeve labeling efficiency. Therefore, the purpose of the utility model is to provide a negative pressure adsorption conveying device and a sleeve labeling machine with the same, which can generate adsorption effect through negative pressure, so as to ensure the position and standing posture of the containers on the conveying chain, which makes it possible to convey the containers with lighter mass on the sleeve labeling pipeline and / or convey containers with various masses at a higher speed.

[0024] Figure 1 The negative pressure adsorption conveying device 100 in one embodiment of the utility model is shown. The negative pressure adsorption conveying device 100 comprises a conveying chain 1 and a supporting seat 2. The conveying chain 1 is connected by a plurality of chain plates 3. Each chain plate is matched with the adjacent chain plate in shape, so that the air tightness at the connection can also be maintained as much as possible. Here, each chain plate 3 is designed with a through hole 4. However, the through holes can also be arranged on part of the chain plates 3, for example, n chain plates without through holes are arranged between every two chain plates with through holes, wherein n is any integer between 1-5. In principle, the through holes are arranged only on the chain plates where the containers are to be arranged, so that the chain plates with through holes can be determined according to the mass and size of the containers to be conveyed. Arranging the through holes only on part of the chain plates further improves the air tightness.

[0025] In the working state, the conveying chain 1 moves along the longitudinal direction of the support seat to transport the containers to be labeled. A hollow chamber is formed in the main body of the support seat 2, which comprises a bottom wall, two mutually opposite side walls and two end walls which are connected airtightly with each other. Here, the bottom wall, the two mutually opposite side walls and the two end walls are integrally formed or connected with each other in a material bonding manner. In this way, the airtightness of the hollow space is ensured, and the adsorption effect is improved. The conveying chain 1 extends parallel to the hollow chamber and covers the upper side of the hollow chamber throughout the length of the hollow chamber. That is, the hollow chamber is open on the upper side and is closed by the conveying chain 1. Here, the conveying chain 1 is combined with the upper side of the hollow chamber in an airtight manner. The hollow chamber can extend through a large part of the main body of the support seat 2, preferably from the downstream of the bottle separating mechanism 9 to the downstream of the shrinkage furnace. Here, the hollow chamber is in communication with the external environment through the through holes and is connected with the air blower 6 through the airtight pipeline 5, and a negative pressure can be formed inside the hollow chamber by means of the air blower 6. The air blower 6 can be driven by an electric motor, and its power can be adjusted. For this purpose, a controller is provided. The power of the air blower 6 can be adjusted by the controller according to factors such as the mass, size and conveying speed of the containers, so as to generate sufficient negative pressure inside the hollow chamber while saving energy as much as possible.

[0026] As shown in Figure 1 , four through holes 4 are arranged in the center of each chain plate 3 provided with through holes. Of course, a greater or smaller number of through holes can also be considered on the chain plate. However, it is advantageous to arrange four through holes uniformly in the center. Because, the four through holes arranged in the center can ensure that all the through holes can be covered by the bottom of the container, and the adsorption effect can be improved; the four through holes are arranged uniformly, so that the adsorption force is uniform respectively, and the container is prevented from tilting or falling over. The area of the through holes accounts for about 10%-20% of the total area of the chain plate, so that sufficient adsorption force can be ensured.

[0027] Although not shown, a guide groove for receiving the conveying chain is arranged on each of the mutually opposite side walls 7. In the transverse direction of the conveying chain 1, the two side edges of the conveying chain respectively extend into the guide grooves. The stability of the conveying chain 1 is improved by the guide grooves, and the sealing performance is also improved. In addition, a sealing structure is arranged between the guide grooves and the side edges of the conveying chain 1. The sealing structure is, for example, a sealing strip or a sealing felt. In this way, the sealing performance is further improved, and the negative pressure adsorption effect is ensured.

[0028] An air outlet 8 is provided on the side or bottom wall of the hollow chamber, and the hollow chamber is connected to the blower 6 via a pipe through the air outlet. The blower is signal-connected to a controller (not shown), and the power of the blower can be adjusted by the controller. By adjusting the blower power, the negative pressure can be adjusted according to the negative pressure requirements, such as the mass, size, and dimensions of the container to be conveyed. This saves energy and makes the negative pressure adsorption conveying system suitable for conveying containers of various sizes, thus improving its applicability. Figure 1 Only one air outlet is output, but multiple air outlets can be provided depending on the specific situation. These air outlets are all connected to the blower through pipelines. For example, multiple air outlets can be evenly provided on the side wall or bottom wall, and each air outlet is connected to the blower through a pipeline. This can make the adsorption force of each section basically consistent.

[0029] Figure 2 The negative pressure adsorption conveying device 100 is shown from another angle. Figure 2 As can be seen from the conveying direction, a bottle-splitting mechanism 9 and a correction mechanism 10 are sequentially arranged on both sides of the conveyor chain 1. The bottle-splitting mechanism 9 is used to divide the continuously input containers from upstream, such as beverage bottles, into individual containers arranged separately on the conveyor chain at specified intervals. The correction mechanism 10 is used to correct the position of any individual containers that may be misaligned, ensuring that each container enters the labeling structure in the optimal position and orientation. Downstream of the correction mechanism, there is also a labeling mechanism and a heat shrink oven.

[0030] Figure 3 A schematic diagram of a chain plate 3 with a through hole 4 is shown. Figure 3 It can be clearly seen that one side of the outer contour of the chain plate 3 is designed to be concave, while the other side is designed to be convex, thus matching the adjacent chain plates. Four through holes 4 are provided in the center of the chain plate 3, allowing the hollow chamber to communicate with the external environment. In the working state, these through holes are at least partially covered by the bottom of the container.

[0031] This utility model also proposes a labeling device, which includes the negative pressure adsorption conveying device described in any of the above embodiments.

[0032] In summary, the labeling equipment in this embodiment utilizes a negative pressure adsorption conveyor to adsorb containers arranged on the conveyor chain plates. The combined force of the negative pressure adsorption and gravity ensures the correct position and upright posture of the containers on the conveyor chain 1. This allows for the conveying of lighter containers and / or the conveying of containers of various sizes at higher speeds on the labeling production line. Furthermore, the blower power is adjustable, allowing for flexible setting of the negative pressure as needed, particularly adaptable to containers of various weights and sizes.

[0033] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A negative pressure adsorption conveying device having a conveying chain and a support bed, the conveying chain being movable in the longitudinal direction of the support bed to convey containers to be labeled, characterized in that, A hollow chamber is formed in the main body of the support seat, the hollow chamber comprising a bottom wall, two mutually opposite side walls and two end walls which are connected airtightly with each other, the conveying chain extending parallel to the hollow chamber and covering the upper side of the hollow chamber throughout the length of the hollow chamber, wherein the conveying chain is combined airtightly with the upper side of the hollow chamber, the conveying chain comprising a plurality of chain plates, each chain plate being complementary in shape to the adjacent chain plate, wherein a through hole is designed on at least part of the chain plates, wherein the hollow chamber is connected to the outside environment through the through hole on one hand and connected to the air blower through an airtight pipeline on the other hand, and a negative pressure can be formed inside the hollow chamber by means of the air blower.

2. The pressure swing adsorption conveyor of claim 1, wherein, The through hole is provided on each chain plate, or n chain plates without through holes are provided between every two chain plates with through holes, wherein n is any integer between 1 and 5.

3. The pressure swing adsorption conveyor of claim 1 or 2, wherein, Four through holes are provided in the center of each chain plate with a through hole.

4. The pressure swing adsorption conveyor of claim 1 or 2, wherein, The bottom wall, the two mutually opposite side walls and the two end walls are integrally formed or connected to each other in a material bonding manner.

5. The pressure swing adsorption conveyor of claim 1 or 2, wherein, A guide groove for receiving the conveying chain is provided on each of the mutually opposite side walls, and the two side edges of the conveying chain respectively extend into the guide groove as viewed in the transverse direction of the conveying chain.

6. The pressure swing adsorption conveyor of claim 5, wherein, A sealing structure is provided between the guide groove and the side edge of the conveying chain.

7. The pressure swing adsorption conveyor of claim 6, wherein, The sealing structure is a sealing strip or a sealing felt.

8. The pressure swing adsorption conveyor of claim 1 or 2, wherein, An air outlet hole is provided on the side wall or the bottom wall of the hollow chamber, and the hollow chamber is connected to the air blower through the pipeline via the air outlet hole, the air blower is signal connected to the controller and the power of the air blower can be adjusted by the controller.

9. The pressure swing adsorption conveyor of claim 8, wherein, A plurality of air outlet holes are uniformly provided on the side wall or the bottom wall, and each air outlet hole is connected to the air blower through a pipeline.

10. A labelling apparatus characterised in that, The sleeve labeling device comprises the negative pressure adsorption conveying device according to any one of claims 1-9.

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