Positioning and clamping device for a labeling machine

Abstract

The utility model relates to sleeve labeler technical field, concretely is a sleeve labeler with positioning and clamping device, including conveyer belt, the conveyer belt distribution has several groups of placing seat, the top of conveyer belt is provided with support, is installed on the support electric push rod, the output shaft one end of electric push rod extends downward and is fixedly connected with first connecting plate, the both sides of first connecting plate are slidably connected with slide rod, the bottom fixedly connected with second connecting plate of slide rod, the bottom fixedly connected with clamping plate of second connecting plate, be provided with spring between first connecting plate with second connecting plate, the spring is nested in the surface of slide rod, the inside of clamping plate is cavity structure, the surface of clamping plate is equipped with adsorption hole, the utility model can make the firm clamping positioning effect of product receives simultaneously, can effectively avoid the deformation damage of product and the excessive pressure effect.

Description

Technical Field

[0001] This utility model relates to the field of labeling machine technology, and more specifically, to a positioning and clamping device for a labeling machine. Background Technology

[0002] A shrink wrapping machine is an automated device used for product packaging. It is mainly responsible for accurately wrapping tubular shrink film labels onto the outer surface of containers and shrinking and sealing them by heating.

[0003] When labeling products, the labeling machine usually needs to clamp and position the products to prevent them from shifting and causing inaccurate label placement. Existing labeling machines usually use electric push rods to control the movement of the clamping plates to clamp the products. However, because the clamping force of the electric push rods is difficult to control, when the pressure of the electric push rods is directly applied to the products through the clamping plates, it is easy to cause excessive pressure on the products, which can easily lead to product deformation and damage. Summary of the Invention

[0004] This utility model provides a positioning and clamping device for a labeling machine, which solves the technical problem in the prior art that when clamping and positioning products, the pressure of the electric push rod is directly applied to the product through the clamping plate, which can easily cause the product to be subjected to excessive pressure, thereby causing product deformation and damage.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows: A positioning and clamping device for a labeling machine includes a conveyor belt with several sets of placement seats distributed on the conveyor belt. A bracket is provided above the conveyor belt, and an electric push rod is mounted on the bracket. One end of the output shaft of the electric push rod extends downward and is fixedly connected to a first connecting plate. Slide rods are slidably connected to both sides of the first connecting plate. A second connecting plate is fixedly connected to the bottom end of the slide rods. A clamping plate is fixedly connected to the bottom end of the second connecting plate. A spring is provided between the first connecting plate and the second connecting plate, and the spring is nested on the surface of the slide rods. The clamping plate has a hollow cavity structure inside, and adsorption holes are opened on the surface of the clamping plate. An adsorption pump is installed at the top of the bracket, and the adsorption pump is connected to the cavity of the clamping plate through a conduit. Furthermore, a set of vent pipes is connected to the clamp, and a solenoid valve is installed on the vent pipes. Furthermore, both the clamping plate and the opposite side of the placement seat have an arc-shaped structure. Furthermore, rubber gaskets are provided on the surface edge of the clamping plate, and the springs are evenly distributed in multiple groups on the surface of the clamping plate. Furthermore, a guide sleeve is fixedly provided at the top of the bracket, and a guide rod is fixedly connected to the top of the second connecting plate, with the guide rod slidably disposed inside the guide sleeve. Furthermore, the conduit is a metal bellows. Compared with the prior art, the beneficial effects of this utility model are as follows: by activating the electric push rod, the first connecting plate can be driven to move downward, so that the clamping plate abuts against the product on the lower placement seat. The second connecting plate and the first connecting plate will move closer to each other, causing the spring to be compressed. The spring can also generate a downward elastic force on the second connecting plate. Under this elastic force, the product can be clamped between the bracket and the clamping plate. Then, by using the suction pump, the air inside the clamping plate can be extracted, so that the inner cavity of the clamping plate is in a negative pressure state. The spring on the clamping plate can adsorb and fix the product, so that the product is firmly clamped and positioned, while effectively preventing the product from being deformed and damaged due to excessive pressure. Attached Figure Description

[0006] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0007] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the structure of the first connecting plate, the second connecting plate, and the clamping plate in this utility model.

[0008] In the diagram: 1. Conveyor belt; 2. Placement seat; 3. Support frame; 4. Electric push rod; 5. First connecting plate; 6. Slide rod; 7. Second connecting plate; 8. Clamping plate; 9. Spring; 10. Adsorption pump; 11. Conduit; 12. Adsorption hole; 13. Vent pipe; 14. Solenoid valve; 15. Rubber gasket; 16. Guide sleeve; 17. Guide rod. Detailed Implementation

[0009] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0010] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0011] Please see Figure 1-3 A positioning and clamping device for a labeling machine includes a conveyor belt 1 with several sets of placement seats 2. Products to be labeled are placed on the placement seats 2. The conveyor belt 1 transports the products on the placement seats 2. A support 3 is mounted above the conveyor belt 1, and an electric push rod 4 is installed on the support 3. One end of the output shaft of the electric push rod 4 extends downward and is fixedly connected to a first connecting plate 5. When the electric push rod 4 is activated, its output shaft drives the first connecting plate 5 to move up and down through telescopic movement. Sliding rods 6 are slidably connected to both sides of the first connecting plate 5, and a second connecting plate 7 is fixedly connected to the bottom end of the sliding rods 6. A clamping plate 8 is fixedly connected to the bottom end of the second connecting plate 7. When the output shaft of the electric push rod 4 drives the first connecting plate 5 to move downward, the second connecting plate 7 and the clamping plate 8 move downward with the first connecting plate 5. During this process, the clamping plate 8 can contact the products placed on the placement seats 2. 5. As the device continues to move downwards, the second connecting plate 7 will approach the first connecting plate 5. A spring 9 is installed between the first connecting plate 5 and the second connecting plate 7. The spring 9 is nested on the surface of the slide rod 6. When the second connecting plate 7 approaches the first connecting plate 5, the spring 9 will be compressed and exert a downward elastic force on the clamping plate 8. The clamping plate 8 has a hollow cavity structure inside and an adsorption hole 12 is opened on the surface of the clamping plate 8. An adsorption pump 10 is installed at the top of the bracket 3. The adsorption pump 10 is connected to the cavity of the clamping plate 8 through a conduit 11. When the clamping plate 8 moves downwards and touches the product in the lower placement seat 2, the adsorption pump 10 is activated. After the adsorption pump 10 is activated, it can extract the air inside the clamping plate 8 through the conduit 11, so that the inside of the clamping plate 8 is in a negative pressure state. When the product touching the clamping plate 8 covers the adsorption hole 12, an adsorption force can be generated on the product through the adsorption hole 12, so that the product is adsorbed and fixed at the bottom of the clamping plate 8.

[0012] During operation, the conveyor belt 1 transports the products on the placement seat 2 one by one to the position below the clamping plate 8. When the product is aligned with the clamping plate 8, the electric push rod 4 is activated to drive the first connecting plate 5 to move downward. At this time, the first connecting plate 5 will drive the second connecting plate 7 and the clamping plate 8 to move downward. When the clamping plate 8 touches the product on the placement seat 2, the second connecting plate 7 and the first connecting plate 5 will move closer to each other. At this time, the spring 9 located between the second connecting plate 7 and the first connecting plate 5 will be compressed and exert a downward elastic force on the second connecting plate 7. Under this elastic force, the product can be clamped between the bracket 3 and the clamping plate 8, and the surface of the clamped product can be in contact with the clamping plate. 8. With a tight fit, the air inside the clamping plate 8 can be extracted by the adsorption pump 10, making the inner cavity of the clamping plate 8 a negative pressure state. The spring 9 on the clamping plate 8 can adsorb and fix the product, preventing the product from shifting during the labeling process. Since the downward pressure generated by the electric push rod 4 does not directly act on the surface of the product during the fixing process, the product is clamped between the clamping plate 8 and the bracket 3 by the elastic force of the spring 9, and then fixed by the adsorption force of the clamping plate 8. Therefore, the device can provide a firm clamping and positioning function for the product, and can effectively prevent the product from being deformed and damaged by excessive pressure.

[0013] In addition, a set of vent pipes 13 are connected to the clamping plate 8. A solenoid valve 14 is installed on the vent pipe 13. When the product is clamped and positioned, the solenoid valve 14 is in the closed state. When the product is labeled, turning off the adsorption pump 10 and controlling the solenoid valve 14 to open can quickly connect the inner cavity of the clamping plate 8 to the outside through the vent pipe 13. At this time, the clamping plate 8 will immediately stop adsorbing the product. The clamping plate 8 can be moved upward and reset by the electric push rod 4. The conveyor belt 1 can then transport the labeled product on the placement seat 2 forward.

[0014] For further details, please refer to Figure 1-3 Both the clamping plate 8 and the placement seat 2 have an arc-shaped structure on their opposite sides, which can closely fit the surface contour of the product, thereby ensuring the clamping effect on the product.

[0015] For further details, please refer to Figure 1-3 The surface edge of the clamping plate 8 is provided with rubber gaskets 15. When the clamping plate 8 adsorbs the product, the rubber gaskets 15 on the surface edge of the clamping plate 8 can tightly abut against the product. At this time, the rubber gaskets 15 can prevent gaps from forming between the edge of the clamping plate 8 and the product, ensuring the adsorption and fixing effect of the product. The springs 9 are evenly distributed in multiple groups on the surface of the clamping plate 8, which can make the product in contact with the clamping plate 8 receive uniform adsorption force, further ensuring the adsorption and fixing effect of the product.

[0016] For further details, please refer to Figure 1-3A guide sleeve 16 is fixedly installed at the top of the bracket 3, and a guide rod 17 is fixedly connected to the top of the second connecting plate 7. The guide rod 17 is slidably installed inside the guide sleeve 16. During the up and down movement of the second connecting plate 7, the guide rod 17 will slide along the inside of the guide sleeve 16 under the drive of the second connecting plate 7. At this time, the guide sleeve 16 and the guide rod 17 can guide the movement of the second connecting plate 7, so that the movement trajectory of the second connecting plate 7 can always remain vertical and will not be deviated, ensuring that the clamping plate 8 can be accurately aligned with the product below.

[0017] Furthermore, the conduit 11 is a metal bellows, which can extend or bend in coordination with the up-and-down movement of the clamping plate 8, thereby ensuring an effective connection between the adsorption pump 10 and the clamping plate 8 without affecting the up-and-down movement of the clamping plate 8.

[0018] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning and clamping device for a labeling machine, comprising a conveyor belt (1), characterized in that, The conveyor belt (1) is provided with several sets of placement seats (2). A bracket (3) is provided above the conveyor belt (1). An electric push rod (4) is installed on the bracket (3). One end of the output shaft of the electric push rod (4) extends downward and is fixedly connected to a first connecting plate (5). A slide rod (6) is slidably connected to both sides of the first connecting plate (5). A second connecting plate (7) is fixedly connected to the bottom end of the slide rod (6). A clamping plate (8) is fixedly connected to the bottom end of the second connecting plate (7). A spring (9) is provided between the first connecting plate (5) and the second connecting plate (7). The spring (9) is nested on the surface of the slide rod (6). The interior of the clamping plate (8) is a cavity structure. An adsorption hole (12) is opened on the surface of the clamping plate (8). An adsorption pump (10) is installed at the top of the bracket (3). The adsorption pump (10) is connected to the cavity of the clamping plate (8) through a conduit (11).

2. The positioning and clamping device for a labeling machine according to claim 1, characterized in that, A set of vent pipes (13) are connected to the clamp (8), and a solenoid valve (14) is installed on the vent pipes (13).

3. The positioning and clamping device for a labeling machine according to claim 1, characterized in that, The opposing sides of the clamp (8) and the placement seat (2) are both arc-shaped structures.

4. The positioning and clamping device for a labeling machine according to claim 1, characterized in that, The surface edge of the clamp (8) is provided with rubber gaskets (15), and the springs (9) are evenly distributed in multiple groups on the surface of the clamp (8).

5. The positioning and clamping device for a labeling machine according to claim 1, characterized in that, The top of the bracket (3) is fixedly provided with a guide sleeve (16), and the top of the second connecting plate (7) is fixedly connected with a guide rod (17), which is slidably disposed inside the guide sleeve (16).

6. The positioning and clamping device for a labeling machine according to claim 1, characterized in that, The conduit (11) is a metal bellows.

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