Plastic bottle labeling machine

Abstract

The utility model relates to the technical field of plastic bottle production, and provides a plastic bottle labeling machine which comprises a workbench and a labeling mechanism, a conveying device is installed on the workbench, a limiting assembly and a positioning assembly are arranged on the conveying device, the limiting assembly comprises two limiting rods, a first limiting channel used for limiting a plastic bottle body is formed between the two limiting rods, and the positioning assembly comprises two positioning wheels. A positioning gap used for fixing the bottom of a plastic bottle is formed between the two positioning wheels and located in the first limiting channel. The labeling mechanism comprises a label assembly and a label pressing structure erected on the conveying device, the label assembly is fixed to the workbench, and the label pressing structure is used for pressing labels on the label assembly on the plastic bottles on the positioning gaps; the plastic bottle labeling device solves the problem that plastic bottles are prone to shaking in the labeling process, and has the advantages of being simple in structure and low in manufacturing cost.

Description

Technical Field

[0001] This utility model relates to the field of plastic bottle production technology, and more specifically, to a plastic bottle labeling machine. Background Technology

[0002] Plastic bottles are mainly made of materials such as polyethylene or polypropylene with the addition of various organic solvents. They widely use polyester, polyethylene, and polypropylene as raw materials, adding appropriate organic solvents, and then heating at high temperatures before being molded into plastic containers through blow molding, extrusion blow molding, or injection molding. During the plastic bottle manufacturing process, labels are usually affixed to the bottles to differentiate them from products on the market. However, on existing plastic bottle labeling machines, workers typically place the bottles upright on the conveyor, allowing them to move with the conveyor. Since the height of most bottle-shaped products is much greater than their base diameter, upright plastic bottles will wobble during transport due to their high center of gravity, affecting the labeling process. Utility Model Content

[0003] Therefore, in order to solve the problem of plastic bottles easily shaking during the labeling process, this utility model provides a plastic bottle labeling machine, the specific technical solution of which is as follows:

[0004] A plastic bottle labeling machine includes a worktable and a labeling mechanism. A conveying device is mounted on the worktable, and the conveying device is equipped with a limiting component and a positioning component. The limiting component includes two limiting rods, forming a first limiting channel between the two limiting rods for limiting the body of the plastic bottle. The positioning component includes two positioning wheels, forming a positioning gap between the two positioning wheels for fixing the bottom of the plastic bottle. The positioning gap is located within the first limiting channel. The labeling mechanism includes a label assembly and a label pressing structure mounted on the conveying device. The label assembly is fixed to the worktable, and the label pressing structure is used to press the label on the label assembly onto the plastic bottle in the positioning gap.

[0005] The aforementioned plastic bottle labeling machine, by setting a first limiting channel, limits the plastic bottles on the conveying device, preventing them from shifting or even falling off during transportation, thus improving the stability of the plastic bottles during transport; by setting a positioning gap, it fixes the plastic bottles, preventing them from shaking or tilting during the labeling process, which would affect the accuracy of the labeling operation; by setting a label assembly, it completes the unwinding and rewinding of the labels, facilitating continuous labeling operations on multiple plastic bottles and improving processing efficiency.

[0006] Furthermore, the workbench is provided with a feeding position, a detection position, a labeling position and a discharging position in sequence along the transport direction of the conveying device, and the label assembly is fixedly installed on the labeling position.

[0007] Furthermore, the plastic bottle labeling machine also includes a feeding device set on the feeding position. The feeding device includes a feeding conveyor belt and a feeding assembly. The feeding assembly includes a drive motor, a feeding turntable, and a mounting frame mounted on the worktable. The drive motor is mounted on the mounting frame and is used to control the rotation of the feeding turntable. The feeding turntable is located at the discharge end of the feeding conveyor belt, and multiple feeding baffles are spaced apart circumferentially on the feeding turntable.

[0008] Furthermore, the conveying device includes a support frame and a material conveyor belt mounted on the support frame. The support frame is fixed on the workbench, and the feeding turntable is located above the feeding end of the material conveyor belt.

[0009] Furthermore, the limiting component also includes two limiting plates, which are symmetrically arranged on both sides of the conveyor belt, and a second limiting channel for limiting the body of the plastic bottle is formed between the two limiting plates. The second limiting channel is connected to the first limiting channel.

[0010] Furthermore, the plastic bottle labeling machine also includes a detection device set on the detection position. The detection device is located between the first limiting channel and the second limiting channel. The detection device includes a detection camera, a drive cylinder, a pusher plate, and a detection frame mounted on the side wall of the conveyor belt. The detection camera is fixed to the top of the detection frame by a photoelectric base. The drive cylinder is mounted on the detection frame and is used to control the sliding of the pusher plate on the detection frame.

[0011] Furthermore, defective product retaining frames are connected to both sides of the inspection frame, and a recycling channel is formed within the defective product retaining frames for the plastic bottles to fall into. The pusher plate is used to push the plastic bottles into the recycling channel. A receiving cylinder is provided on the worktable, and a receiving port is opened at the top of the receiving cylinder, with the receiving port facing the recycling channel.

[0012] Furthermore, the label assembly includes a mounting main board, an unwinding structure, a rewinding structure, and a label holder fixed on the worktable. The mounting main board is mounted on the label holder. The unwinding structure and the rewinding structure are both disposed on the mounting main board. The unwinding structure is used to unwind the label tape, and the rewinding structure is used to rewind the label tape after it has fallen off. The mounting main board is provided with a label holder for supporting the label tape.

[0013] Furthermore, a scraper can be detachably provided on the mounting motherboard. The scraper abuts against the bottom of the label holder, and a label removal gap is formed between the scraper and the label holder for the label tape to pass through. The label pressing structure is used to press the label in the label removal gap onto the plastic bottle.

[0014] Furthermore, the plastic bottle labeling machine also includes a discharge device set on the discharge position. The discharge device includes a discharge pipe, a collection box, and a discharge platform set on one side of the workbench. One end of the discharge pipe is connected to the discharge end of the conveyor belt. The collection box is fixedly installed on the discharge platform and has a collection port. The other end of the discharge pipe is connected to the collection port. Attached Figure Description

[0015] Figure 1 This is one of the structural schematic diagrams of a plastic bottle labeling machine according to an embodiment of the present invention;

[0016] Figure 2 yes Figure 1 A magnified schematic diagram of the structure of part A in the diagram;

[0017] Figure 3 This is a second structural schematic diagram of the plastic bottle labeling machine according to an embodiment of the present invention;

[0018] Figure 4 yes Figure 3 A magnified schematic diagram of part B.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Workbench; 11. Take-up cylinder; 2. Conveying device; 3. Limiting rod; 4. Positioning wheel; 5. Label assembly; 51. Mounting main board; 52. Unwinding structure; 53. Rewinding structure; 54. Label holder; 55. Label support; 56. Scraper; 6. Label pressing structure; 7. Feeding device; 71. Feeding conveyor belt; 72. Feeding assembly; 721. Drive motor; 722. Feeding turntable; 723. Mounting frame; 8. Limiting plate; 9. Detection device; 91. Drive cylinder; 92. Pusher plate; 93. Detection frame; 94. Photoelectric base; 95. Defective product retainer frame; 10. Discharge device; 101. Discharge pipe; 102. Collection box; 103. Discharge platform. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0025] like Figures 1-4 As shown, a plastic bottle labeling machine according to one embodiment of the present invention includes a workbench 1 and a labeling mechanism. A conveying device 2 is installed on the workbench 1. The conveying device 2 is provided with a limiting component and a positioning component. The limiting component includes two limiting rods 3, and a first limiting channel for limiting the body of the plastic bottle is formed between the two limiting rods 3. The positioning component includes two positioning wheels 4, and a positioning gap for fixing the bottom of the plastic bottle is formed between the two positioning wheels 4. The positioning gap is located within the first limiting channel. The labeling mechanism includes a label assembly 5 and a label pressing structure 6 mounted on the conveying device 2. The label assembly 5 is fixed on the workbench 1, and the label pressing structure 6 is used to press the label on the label assembly 5 onto the plastic bottle in the positioning gap.

[0026] The aforementioned plastic bottle labeling machine, by setting a first limiting channel, limits the plastic bottles on the conveying device 2, preventing them from shifting or even falling off during transportation, thus improving the stability of the plastic bottles during transport; by setting a positioning gap, the plastic bottles are fixed, preventing them from shaking or tilting during the labeling process, which would affect the accuracy of the labeling operation; by setting a label assembly 5, the label can be unwound and rewound, facilitating continuous labeling of multiple plastic bottles and improving processing efficiency.

[0027] Specifically, the pressing structure 6 is existing technology for pressing the label on the label tape onto the plastic bottle, and the pressing structure 6 will not be described in detail here.

[0028] In one embodiment, the workbench 1 is provided with a feeding position, a detection position, a labeling position and a discharging position in sequence along the transport direction of the conveying device 2, and the label assembly 5 is fixedly installed on the labeling position.

[0029] like Figure 1 and Figure 3 As shown, in one embodiment, the plastic bottle labeling machine further includes a feeding device 7 disposed at the feeding position. The feeding device 7 includes a feeding conveyor belt 71 and a feeding assembly 72. The feeding assembly 72 includes a drive motor 721, a feeding turntable 722, and a mounting frame 723 mounted on the worktable 1. The drive motor 721 is mounted on the mounting frame 723 and is used to control the rotation of the feeding turntable 722. The feeding turntable 722 is located at the discharge end of the feeding conveyor belt 71, and multiple feeding baffles are spaced apart around the circumference of the feeding turntable 722. By providing the drive motor 721, the drive motor 721 drives the rotation of the feeding turntable 722, thereby enabling the multiple feeding baffles to rotate reciprocally. When the plastic bottle is discharged from the discharge end of the feeding conveyor belt 71, it can be transferred to the conveyor belt under the push of the feeding baffles, thereby completing the feeding operation of the plastic bottle.

[0030] Specifically, the feeding conveyor belt 71 is set in a direction perpendicular to the material conveyor belt.

[0031] Furthermore, if the plastic bottles shift or tilt during the transfer process, staff can manually or automatically reposition them upright.

[0032] In one embodiment, the conveying device 2 includes a support frame and a material conveyor belt mounted on the support frame. The support frame is fixed on the workbench 1, and the feeding turntable 722 is located above the feeding end of the material conveyor belt.

[0033] like Figure 1 , Figure 3 and Figure 4 As shown, in one embodiment, the limiting component further includes two limiting plates 8, which are symmetrically arranged on both sides of the conveyor belt. A second limiting channel for limiting the body of the plastic bottle is formed between the two limiting plates 8, and the second limiting channel is connected to the first limiting channel. This helps to keep the plastic bottle stable during transportation on the conveyor belt.

[0034] like Figure 1 , Figure 3 and Figure 4As shown, in one embodiment, the plastic bottle labeling machine further includes a detection device 9 disposed at a detection position. The detection device 9 is located between the first limiting channel and the second limiting channel. The detection device 9 includes a detection camera, a drive cylinder 91, a pusher plate 92, and a detection frame 93 mounted on the side wall of the conveyor belt. The detection camera is fixed to the top of the detection frame 93 via a photoelectric base 94. The drive cylinder 91 is mounted on the detection frame 93 and is used to control the sliding of the pusher plate 92 on the detection frame 93. Thus, by providing a detection camera to capture images of the plastic bottles, the two-dimensional and three-dimensional dimensions of the plastic bottles can be automatically and quickly inspected non-contactly, facilitating the screening of defective products. By providing a drive cylinder 91 to control the reciprocating movement of the pusher plate 92, when the detection camera detects that the plastic bottle is defective, the operator can use the drive cylinder 91 to push the plastic bottle off the conveyor belt, completing the recycling of defective products.

[0035] The aforementioned detection camera is existing technology and is not shown in the illustration.

[0036] like Figure 4 As shown, in one embodiment, defective product retaining frames 95 are connected to both sides of the inspection frame 93. A recycling channel is formed within the defective product retaining frame 95 for the plastic bottles to fall into. A pusher plate 92 is used to push the plastic bottles into the recycling channel. A receiving cylinder 11 is provided on the workbench 1, with a receiving opening at the top of the receiving cylinder 11 facing the recycling channel. The plastic bottles fall from the recycling channel into the receiving cylinder 11 and are collected there, facilitating subsequent recycling by staff.

[0037] like Figures 1-3 As shown, in one embodiment, the label assembly 5 includes a mounting main board 51, an unwinding structure 52, a winding structure 53, and a label holder 54 fixed on the workbench 1. The mounting main board 51 is mounted on the label holder 54. The unwinding structure 52 and the winding structure 53 are both disposed on the mounting main board 51. The unwinding structure 52 is used to unwind the label tape, and the winding structure 53 is used to wind up the label tape after it falls off. The mounting main board 51 is provided with a label holder 55 for supporting the label tape.

[0038] The unwinding structure 52 and the winding structure 53 described above are both existing technologies and will not be elaborated on here.

[0039] like Figure 2 As shown, in one embodiment, a scraper 56 is detachably mounted on the mounting motherboard 51. The scraper 56 abuts against the bottom of the label holder 55, and a label removal gap is formed between the scraper 56 and the label holder 55 for the label tape to pass through. The label pressing structure 6 is used to press the label within the label removal gap onto the plastic bottle. The scraper 56 can scrape the label off the label tape, facilitating subsequent label pressing.

[0040] like Figure 1 and Figure 3 As shown, in one embodiment, the plastic bottle labeling machine further includes a discharge device 10 disposed at the discharge position. The discharge device 10 includes a discharge pipe 101, a collection box 102, and a discharge platform 103 disposed on one side of the workbench 1. One end of the discharge pipe 101 is connected to the discharge end of the conveyor belt. The collection box 102 is fixedly installed on the discharge platform 103 and has a collection port. The other end of the discharge pipe 101 is connected to the collection port.

[0041] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0042] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A plastic bottle labeling machine, characterized in that, include: A workbench is provided with a conveying device. The conveying device is equipped with a limiting component and a positioning component. The limiting component includes two limiting rods, and a first limiting channel for limiting the body of the plastic bottle is formed between the two limiting rods. The positioning component includes two positioning wheels, and a positioning gap for fixing the bottom of the plastic bottle is formed between the two positioning wheels. The positioning gap is located within the first limiting channel. The labeling mechanism includes a label assembly and a label pressing structure mounted on the conveying device. The label assembly is fixed on the worktable, and the label pressing structure is used to press the label on the label assembly onto the plastic bottle in the positioning gap.

2. The plastic bottle labeling machine according to claim 1, characterized in that, The workbench is provided with a feeding position, a detection position, a labeling position and a discharging position in sequence along the transport direction of the conveying device, and the label assembly is fixedly installed on the labeling position.

3. The plastic bottle labeling machine according to claim 2, characterized in that, It also includes a feeding device set on the feeding position. The feeding device includes a feeding conveyor belt and a feeding assembly. The feeding assembly includes a drive motor, a feeding turntable and a mounting frame mounted on the workbench. The drive motor is mounted on the mounting frame and is used to control the rotation of the feeding turntable. The feeding turntable is located at the discharge end of the feeding conveyor belt. The feeding turntable is provided with multiple feeding baffles spaced apart circumferentially.

4. The plastic bottle labeling machine according to claim 3, characterized in that, The conveying device includes a support frame and a material conveyor belt mounted on the support frame. The support frame is fixed on the workbench, and the feeding turntable is located above the feeding end of the material conveyor belt.

5. The plastic bottle labeling machine according to claim 4, characterized in that, The limiting component also includes two limiting plates, which are symmetrically arranged on both sides of the conveyor belt, and a second limiting channel for limiting the body of the plastic bottle is formed between the two limiting plates. The second limiting channel is connected to the first limiting channel.

6. The plastic bottle labeling machine according to claim 5, characterized in that, It also includes a detection device set on the detection position, the detection device being located between the first limiting channel and the second limiting channel, the detection device including a detection camera, a drive cylinder, a pusher plate and a detection frame mounted on the side wall of the conveyor belt, the detection camera being fixed to the top of the detection frame via a photoelectric base, the drive cylinder being mounted on the detection frame and used to control the sliding of the pusher plate on the detection frame.

7. The plastic bottle labeling machine according to claim 6, characterized in that, Both sides of the inspection frame are connected to defective product blocking frames, and a recycling channel is formed inside the defective product blocking frames for the plastic bottles to fall into. The pusher plate is used to push the plastic bottles into the recycling channel. A receiving cylinder is provided on the workbench, and a receiving port is opened at the top of the receiving cylinder, with the receiving port facing the recycling channel.

8. The plastic bottle labeling machine according to claim 2, characterized in that, The label assembly includes a mounting main board, an unwinding structure, a rewinding structure, and a label holder fixed on the worktable. The mounting main board is mounted on the label holder. The unwinding structure and the rewinding structure are both disposed on the mounting main board. The unwinding structure is used to unwind the label tape, and the rewinding structure is used to rewind the label tape after it has fallen off. The mounting main board is provided with a label holder for supporting the label tape.

9. The plastic bottle labeling machine according to claim 8, characterized in that, A scraper is also detachably provided on the mounting motherboard. The scraper abuts against the bottom of the label holder, and a label removal gap is formed between the scraper and the label holder for the label tape to pass through. The label pressing structure is used to press the label in the label removal gap onto the plastic bottle.

10. The plastic bottle labeling machine according to claim 4, characterized in that, It also includes a discharge device installed at the discharge position. The discharge device includes a discharge pipe, a collection box, and a discharge platform installed on one side of the workbench. One end of the discharge pipe is connected to the discharge end of the conveyor belt. The collection box is fixedly installed on the discharge platform and has a collection port. The other end of the discharge pipe is connected to the collection port.

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