Glue roller scraping device for labeling equipment and labeling equipment

Abstract

A glue roller scraping device for a labeling device and the labeling device, the glue roller scraping device for the labeling device comprising: a rack (10) internally provided with a glue roller (20); a two-stage glue scraping mechanism (30) arranged on the rack (10) and configured to scrape off part of the glue attached to the rotating glue roller (20); and a precision glue scraping mechanism (40) detachably arranged on the rack (10) and located downstream of the two-stage glue scraping mechanism (30) along the rotating direction of the glue roller (20), and configured to scrape off part of the thickness of the remaining glue attached to the glue roller (20) after being scraped by the two-stage glue scraping mechanism (30).

Description

Technical Field

[0001] This disclosure relates to the field of labeling equipment, and in particular to a glue roller scraping device for labeling equipment. Background Technology

[0002] In the field of automatic labeling equipment, the uniformity of adhesive application on the glue roller directly affects the adhesion and appearance quality of the label. Some related technologies employ a dual-scraper structure (main and auxiliary scrapers) to remove adhesive from the glue roller surface. The main scraper removes most of the excess adhesive, while the auxiliary scraper performs a secondary, finer scraping, ensuring that the glue roller retains only a uniform adhesive film of a predetermined thickness for labeling. Utility Model Content

[0003] Research revealed that while the labeling equipment remained stable at speeds below 45,000 bottles / hour, speeds increased to 48,000-52,800 bottles / hour, resulting in excessive glue residue on the textured surface of the glue rollers, which could not be completely removed. This excess glue was splashed onto the suction block, brush device, and label gripping drum cover, causing maintenance or downtime. Frequent cleaning of these components increased operator workload and reduced production efficiency. Furthermore, the label margins could not be precisely controlled, leading to excessive white space at the label ends, especially on large-volume products where label peeling significantly increased, impacting quality.

[0004] In view of this, the present disclosure provides an adhesive roller scraping device and a labeling device for labeling equipment, which can improve the scraping effect to adapt to higher labeling speeds.

[0005] In one aspect of this disclosure, an adhesive roller scraping device for labeling equipment is provided, comprising:

[0006] The frame contains glue rollers;

[0007] A two-stage adhesive scraping mechanism, disposed on the frame, is configured to scrape off a portion of the adhesive adhering to the rotating adhesive roller; and

[0008] A precision scraping mechanism is detachably mounted on the frame and located downstream of the two-stage scraping mechanism along the rotation direction of the glue roller. It is configured to scrape off a portion of the thickness of the remaining glue adhering to the glue roller after it has been scraped by the two-stage scraping mechanism.

[0009] In some embodiments, the precision adhesive scraping mechanism includes:

[0010] The mounting base is fixedly connected to the frame via a first connector; and

[0011] An adjustable scraper is disposed on the side of the fixed base adjacent to the glue roller, and forms a preset gap with the glue roller.

[0012] In some embodiments, the adjustable scraper includes:

[0013] The mounting part is fixedly connected to the fixing base via a second connector, and its position relative to the fixing base is adjustable; and

[0014] The adhesive scraping part is fixedly connected to or integrally formed with the mounting part.

[0015] In some embodiments, the mounting portion is provided with a plurality of U-shaped grooves, which are arranged at intervals along the rotation axis of the glue roller. The second connector passes through each U-shaped groove and is connected to the fixing seat, and the opening direction of each U-shaped groove is perpendicular to the rotation axis of the glue roller.

[0016] In some embodiments, the plane where the mounting portion is located intersects the plane where the adhesive scraping portion is located.

[0017] In some embodiments, the thickness of the adjustable scraper is 0.22-0.28 mm.

[0018] In some embodiments, the fixing base is provided with a plurality of fixing holes, which are arranged at intervals along the rotation axis of the glue roller, and the first connector passes through each fixing hole to connect with the frame.

[0019] In some embodiments, the fixing hole is an oblong hole, and the length direction of the oblong hole is parallel to the rotation axis direction of the glue roller.

[0020] In some embodiments, the fixing base includes a first fixing part, a second fixing part, and a connecting part. The first fixing part is used to connect the frame, the second fixing part is used to connect the adjustable scraper, and the connecting part is connected between the first fixing part and the second fixing part, forming a U-shaped structure with the first fixing part and the second fixing part on the vertical beam of the frame.

[0021] In some embodiments, the two-stage adhesive scraping mechanism includes:

[0022] The main scraper plate is located upstream of the precision scraping mechanism along the rotation direction of the glue roller; and

[0023] The auxiliary scraper is located between the main scraper and the precision scraper mechanism along the rotation direction of the glue roller.

[0024] In one aspect of this disclosure, a labeling apparatus is provided, including the aforementioned adhesive roller applicator.

[0025] According to an embodiment of this disclosure, a precision scraping mechanism is installed downstream of the two-stage scraping mechanism along the rotation direction of the glue roller. This precision scraping mechanism removes a portion of the remaining glue thickness adhering to the glue roller after the two-stage scraping mechanism has scraped the glue. In scenarios where labeling speed needs to be increased to a certain range, the installation of the precision scraping mechanism can remove excess glue adhering to the glue roller, reducing the risk of excess glue being thrown into areas such as the suction block, brush device, and label gripping drum cover, which could cause maintenance or downtime of the labeling equipment. This is beneficial for improving production efficiency, reducing labor costs, and improving labeling quality. Attached Figure Description

[0026] The accompanying drawings, which form part of this specification, illustrate embodiments of this disclosure and, together with the specification, serve to explain the principles of this disclosure.

[0027] This disclosure will become clearer with reference to the accompanying drawings and the following detailed description, wherein:

[0028] Figure 1 This is a schematic diagram of the installation structure of some embodiments of the glue roller scraping device according to the present disclosure;

[0029] Figure 2 This is a schematic diagram of the installation structure of the precision scraping mechanism according to some embodiments of the glue roller scraping device of this disclosure;

[0030] Figure 3 yes Figure 2 Side view;

[0031] Figure 4 yes Figure 2 A three-dimensional structural diagram of the adjustable scraper in the illustrated embodiment;

[0032] Figure 5 yes Figure 2 A three-dimensional structural diagram of the fixing base in the illustrated embodiment.

[0033] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0034] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0035] The terms "first," "second," and similar words used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0036] In this disclosure, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may be not directly connected to the other devices but have an intermediary device.

[0037] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0038] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0039] In some related technologies, a dual-scraper structure is used to remove adhesive from the surface of the glue roller. The main scraper is responsible for scraping away most of the excess adhesive from the surface of the glue roller, while the secondary scraper performs a secondary fine scraping to ensure that the glue roller retains only a uniform adhesive film of a preset thickness for labeling.

[0040] Research revealed that while the labeling equipment remained stable at speeds below 45,000 bottles / hour, speeds increased to 48,000-52,800 bottles / hour, resulting in excessive glue residue on the textured surface of the glue rollers, which could not be completely removed. This excess glue was splashed onto the suction block, brush device, and label gripping drum cover, causing maintenance or downtime. Frequent cleaning of these components increased operator workload and reduced production efficiency. Furthermore, the label margins could not be precisely controlled, leading to excessive white space at the label ends, especially on large-volume products where label peeling significantly increased, impacting quality.

[0041] In view of this, the present disclosure provides an adhesive roller scraping device and a labeling device for labeling equipment, which can improve the scraping effect to adapt to higher labeling speeds.

[0042] Figure 1 This is a schematic diagram of the installation structure of some embodiments of the glue roller scraping device according to this disclosure. (See reference) Figure 1 This disclosure provides an adhesive roller scraping device for labeling equipment. The adhesive roller scraping device includes a frame 10, a two-stage scraping mechanism 30, and a precision scraping mechanism 40. An adhesive roller 20 is housed within the frame 10. The two-stage scraping mechanism 30 is disposed within the frame 10 and configured to scrape off a portion of the adhesive adhering to the rotating adhesive roller 20.

[0043] The glue roller 20 can be cylindrical, and its rotational motion evenly transfers and coats a measured amount of glue onto the back of the label. The surface of the glue roller can be textured with a mesh or pits, or it can be made into a smooth surface.

[0044] The two-stage scraping mechanism 30 can control the thickness of the adhesive layer on the surface of the adhesive roller by scraping adhesive through two stages of scrapers. (Reference) Figure 1 In some embodiments, the two-stage scraping mechanism 30 includes a main scraper 31 and a secondary scraper 32. The main scraper 31 is located upstream of the precision scraping mechanism 40 along the rotation direction of the glue roller 20. The secondary scraper 32 is located between the main scraper 31 and the precision scraping mechanism 40 along the rotation direction of the glue roller 20.

[0045] Both the main scraper 31 and the auxiliary scraper 32 can be mounted on the frame 10, for example, on the vertical beam of the frame 10. The main scraper 31 can be used for the first stage of coarse scraping of the glue on the surface of the glue roller to remove most of the excess glue. The auxiliary scraper 32 can be used for the second stage of fine scraping of the glue on the surface of the glue roller to finely finish the glue layer on the surface of the glue roller.

[0046] The precision scraping mechanism 40 is detachably disposed on the frame 10 and located downstream of the two-stage scraping mechanism 30 along the rotation direction of the glue roller 20. It is configured to scrape off a portion of the thickness of the remaining glue adhering to the glue roller 20 after it has been scraped by the two-stage scraping mechanism 30.

[0047] When the labeling equipment operates at a speed below 45,000 bottles / h, the precision glue scraping mechanism 40 can be removed. However, when operating at a speed of 48,000-52,800 bottles / h, the precision glue scraping mechanism 40 can be installed on the frame 10. The precision glue scraping mechanism 40 can intercept excess glue at high speeds and return it to the glue tank, ensuring smooth production.

[0048] A precision scraping mechanism is installed downstream of the two-stage scraping mechanism along the rotation direction of the glue roller. This precision scraping mechanism removes a portion of the remaining glue thickness adhering to the glue roller after the two-stage scraping mechanism has finished. In scenarios where labeling speed needs to be increased to a certain range, the installation of the precision scraping mechanism can remove excess glue adhering to the glue roller, reducing the risk of excess glue being thrown into areas such as the suction block, brush device, and label gripping drum cover, which could cause maintenance or downtime of the labeling equipment. This helps to improve production efficiency, reduce labor costs, and improve labeling quality.

[0049] Figure 2 This is a schematic diagram of the installation structure of the precision scraping mechanism in some embodiments of the glue roller scraping device according to the present disclosure. Figure 3 yes Figure 2 Side view. Reference Figures 1-3 In some embodiments, the precision scraping mechanism 40 includes a fixed base 41 and an adjustable scraper 42. The fixed base 41 is fixedly connected to the frame 10 via a first connector 51. The adjustable scraper 42 is disposed on the side of the fixed base 41 adjacent to the glue roller 20, and forms a preset gap with the glue roller 20.

[0050] The first connector 51 may include easily detachable parts such as bolts and nuts. The mounting base 41 may be fixedly connected to the frame 10 via one or more first connectors 51, as needed. An adjustable scraper 42 is mounted on the mounting base 41 and can adjust the gap size relative to the glue roller 20 to more precisely adjust the thickness of the adhesive layer on the glue roller surface.

[0051] Figure 4 yes Figure 2 A three-dimensional structural schematic diagram of the adjustable scraper in the illustrated embodiment. (Reference) Figure 1 , Figure 2 and Figure 4In some embodiments, the adjustable scraper 42 includes a mounting portion 421 and a scraping portion 422. The mounting portion 421 is fixedly connected to the fixed base 41 via a second connector 52, and its position relative to the fixed base 41 is adjustable. The scraping portion 422 is fixedly connected to the mounting portion 421 or is integrally formed therefrom.

[0052] The adjustable scraper 42 can be bent to form the mounting portion 421 and the scraping portion 422. The scraping portion 422 is disposed adjacent to the glue roller 20, and its edge portion can scrape off excess glue adhering to the surface of the glue roller 20. The mounting portion 421 is installed in an adjustable manner with respect to the fixing base 41 so as to adjust the distance between the scraping portion 422 and the surface of the glue roller 20. The second connecting member 52 may include easily detachable parts such as bolts and nuts.

[0053] refer to Figure 4 In some embodiments, the mounting part 421 is provided with a plurality of U-shaped grooves 4211, which are arranged at intervals along the rotation axis direction ax of the glue roller 20. The second connector 52 passes through each U-shaped groove 4211 and connects with the mounting hole 415 on the fixed base 41. The opening direction of each U-shaped groove 4211 is perpendicular to the rotation axis direction ax of the glue roller 20.

[0054] The number of U-shaped grooves 4211 can be determined according to the axial length of the glue roller 20. For example, no less than 5 U-shaped grooves 4211 can be provided. The mounting part 421 can be connected to the mounting hole 415 on the fixed base 41 by passing through each U-shaped groove 4211 with multiple second connectors 52 respectively. The stability of the connection is improved by connecting at multiple points.

[0055] Depending on the opening direction of the U-shaped groove 4211, the mounting part 421 can be adjusted relative to the fixed base 41 in that opening direction, thereby adjusting the distance between the scraping part 422 and the surface of the glue roller 20. The adjustment of the position of the mounting part 421 relative to the fixed base 41 can be performed manually by an operator or by relevant automatic tools.

[0056] refer to Figure 4 In some embodiments, the plane containing the mounting portion 421 intersects the plane containing the adhesive scraping portion 422. The mounting portion 421 and the adhesive scraping portion 422 may each be constructed as flat thin plate structures, and they form an inclined angle at the connection point.

[0057] The angle between the plane where the mounting part 421 is located and the plane where the scraping part 422 is located can be determined according to the installation position of the glue roller scraping device and its position relative to the glue roller. For example, the angle of inclination can be 30°, 60°, 75°, 120°, 150°, etc., or it can be 90°, that is, the two are perpendicular to each other.

[0058] In some embodiments, the thickness of the adjustable scraper 42 is 2.2-2.8 mm, preferably 2.5 mm. For higher operating speeds, an excessively thick adjustable scraper 42 has a larger contact area with the adhesive layer, making it difficult to effectively scrape off excess adhesive of a predetermined thickness from the glue roller, leading to glue spillage and affecting other components. Conversely, an excessively thin adjustable scraper 42 is prone to breakage or excessive deformation. Therefore, this embodiment, by setting the thickness of the adjustable scraper 42 to 2.2-2.8 mm, balances accurate glue removal from the glue roller with the reliability of the adjustable scraper.

[0059] Figure 5 yes Figure 2 A three-dimensional structural diagram of the fixing base in the illustrated embodiment. (Refer to...) Figure 5 In some embodiments, the fixing base 41 is provided with a plurality of fixing holes 411, which are arranged at intervals along the rotation axis direction ax of the glue roller 20, and the first connector 51 passes through each fixing hole 411 to connect with the frame 10.

[0060] The mounting base 41 is connected to the frame 10 through a plurality of mounting holes 411 arranged at intervals along the rotation axis direction ax of the glue roller 20. The connection reliability between the mounting base 41 and the frame 10 can be improved by the multi-point connection.

[0061] refer to Figure 2 and Figure 5 In some embodiments, the fixing hole 411 is an oblong hole, the length direction of which is parallel to the rotation axis direction ax of the glue roller 20. In instances where the first connecting member 41 is a bolt or similar component, it can move along the length direction of the oblong hole, thus providing a basis for adjusting the position of the fixing seat 41 relative to the frame 10 along the rotation axis direction ax of the glue roller 20. This allows the operator to adjust the axial position of the adjustable scraper 42 relative to the glue roller by adjusting the position of the fixing seat 41, based on the size of the label to be glued and its axial position relative to the glue roller, thereby adapting to the glue application needs of labels of different sizes and positions.

[0062] refer to Figure 5 In some embodiments, the fixing base 41 includes a first fixing part 412, a second fixing part 413, and a connecting part 414. The first fixing part 412 is used to connect the frame 10, the second fixing part 413 is used to connect the adjustable scraper 42, and the connecting part 414 is connected between the first fixing part 412 and the second fixing part 413, and forms a U-shaped structure with the first fixing part 412 and the second fixing part 413 on the vertical beam of the frame 10.

[0063] The first fixing part 412 and the second fixing part 413 can form a U-shaped structure with the connecting part 414. By fitting the U-shaped structure onto the vertical beam of the frame 10, a more stable connection relationship can be formed relative to the frame 10.

[0064] The above-described embodiments of the glue roller scraping device are applicable to various labeling equipment. Therefore, this disclosure also provides a labeling device including the glue roller scraping device of any of the foregoing embodiments.

[0065] In a specific application scenario of this disclosure embodiment, when the labeling equipment operates at a high speed of 48,000-52,800 bottles / hour, the glue roller scraping device can remove excess glue film from the mesh surface of the glue roller through the cooperation of a two-stage scraping mechanism and a precision scraping mechanism. It can also effectively control the blank position at the end of the label, thereby reducing the proportion of label peeling and improving product quality. Furthermore, the device can operate stably and continuously for 6-8 hours, thus improving production efficiency and significantly reducing the frequency of downtime for cleaning, effectively reducing the workload of operators.

[0066] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0067] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A glue roller scraping device for labeling equipment, characterized in that, include: The frame (10) is equipped with a glue roller (20). A two-stage glue scraping mechanism (30) is provided on the frame (10) and is configured to scrape off a portion of the glue adhering to the rotating glue roller (20); and A precision scraping mechanism (40) is detachably disposed on the frame (10) and located downstream of the two-stage scraping mechanism (30) along the rotation direction of the glue roller (20). It is configured to scrape off a portion of the thickness of the remaining glue adhering to the glue roller (20) after scraping by the two-stage scraping mechanism (30).

2. The glue roller scraping device according to claim 1, characterized in that, The precision glue scraping mechanism (40) includes: The mounting base (41) is fixedly connected to the frame (10) via a first connector (51); and An adjustable scraper (42) is disposed on the side of the fixed seat (41) adjacent to the glue roller (20) and forms a preset gap with the glue roller (20).

3. The glue roller scraping device according to claim 2, characterized in that, The adjustable scraper (42) includes: The mounting part (421) is fixedly connected to the fixing base (41) via a second connector (52), and its position relative to the fixing base (41) is adjustable; and The adhesive scraping part (422) is fixedly connected to or integrally formed with the mounting part (421).

4. The glue roller scraping device according to claim 3, characterized in that, The mounting part (421) is provided with a plurality of U-shaped grooves (4211), which are arranged at intervals along the rotation axis (ax) of the glue roller (20). The second connector (52) passes through each U-shaped groove (4211) and connects with the mounting hole (415) on the fixed seat (41). The opening direction of each U-shaped groove (4211) is perpendicular to the rotation axis (ax) of the glue roller (20).

5. The glue roller scraping device according to claim 3, characterized in that, The plane where the mounting part (421) is located intersects the plane where the adhesive scraping part (422) is located.

6. The glue roller scraping device according to claim 2, characterized in that, The thickness of the adjustable scraper (42) is 0.22-0.28 mm.

7. The glue roller scraping device according to claim 2, characterized in that, The fixing seat (41) is provided with a plurality of fixing holes (411), which are arranged at intervals along the rotation axis (ax) of the glue roller (20). The first connector (51) passes through each fixing hole (411) and is connected to the frame (10).

8. The glue roller scraping device according to claim 7, characterized in that, The fixing hole (411) is an oblong hole, and the length direction of the oblong hole is parallel to the rotation axis direction (ax) of the glue roller (20).

9. The glue roller scraping device according to claim 2, characterized in that, The fixing base (41) includes a first fixing part (412), a second fixing part (413) and a connecting part (414). The first fixing part (412) is used to connect the frame (10), the second fixing part (413) is used to connect the adjustable scraper (42), and the connecting part (414) is connected between the first fixing part (412) and the second fixing part (413), and forms a U-shaped structure with the first fixing part (412) and the second fixing part (413) on the vertical beam of the frame (10).

10. The glue roller scraping device according to claim 1, characterized in that, The two-stage adhesive scraping mechanism (30) includes: The main scraper plate (31) is located upstream of the precision scraper mechanism (40) along the rotation direction of the glue roller (20); and The auxiliary scraper (32) is located between the main scraper (31) and the precision scraper mechanism (40) along the rotation direction of the glue roller (20).

11. A labeling device, characterized in that, Includes the glue roller scraping device according to any one of claims 1-10.

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