Gluing device

Abstract

The utility model belongs to the technical field of box pasting machinery, and particularly relates to a gluing device. Comprising a glue box, a glue wheel, a glue scraping plate, a screw rod and a glue adjusting nut. Wherein the glue box forms an accommodating cavity with a top opening; the rubber wheel partially extends into the containing cavity and is used for rotating around the center axis of the rubber wheel. The glue scraping plate is slidably connected to the top of the glue box and forms a strip-shaped hole for the glue wheel to penetrate through. The screw rod is connected to the glue box and is perpendicular to the axial direction of the glue wheel, and the axial direction of the screw rod is parallel to the sliding direction of the glue scraping plate relative to the glue box; and the glue mixing nut is in threaded connection with the screw rod and is connected with the glue scraping plate.

Description

Technical Field

[0001] This application belongs to the field of box-gluing machinery technology, and particularly relates to an adhesive applicator. Background Technology

[0002] In the field of carton gluing machinery technology, the glue coating device, as one of the key components, is used to apply glue to the designated positions on the carton die-cutting machine. Its performance stability and glue coating uniformity directly affect the quality and production efficiency of the carton products. However, in existing glue coating devices, the scraper structure often lacks sufficient flexibility in adjustment. After the glue roller is installed, the gap between the scraper and the roller cannot be precisely adjusted, resulting in the glue layer thickness consistently failing to meet expectations. This not only affects the uniformity and aesthetics of the glue coating but may also negatively impact the bonding effect of the carton, thereby reducing the overall quality of the carton product. Furthermore, existing devices suffer from complex transmission mechanisms, and the use of retaining rings for axial positioning of the bearings in the transmission structure. Due to the gap between the retaining ring and its groove, the connecting shaft or rotating shaft inevitably experiences a certain amount of axial movement, deteriorating the working conditions of the sealing ring. Glue can easily penetrate the sealing ring, leading to glue entering the bearing and even leaking into the motor, causing damage to the glue coating device. Therefore, it is necessary to solve the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this application is to provide an adhesive application device to solve the technical problem of poor adhesive application effect in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application is: to provide an adhesive application device, comprising:

[0005] The plastic box forms a receiving cavity with an open top;

[0006] A rubber wheel extends partially into the receiving cavity and is used to rotate about its own central axis;

[0007] A scraper is slidably connected to the top of the glue box and forms a strip-shaped hole for the glue wheel to pass through;

[0008] A screw is connected to the glue box and is perpendicular to the axis of the glue wheel. The axis of the screw is also parallel to the sliding direction of the scraper relative to the glue box.

[0009] The glue-adjusting nut is threaded onto the screw and rotatably connected to the glue scraper.

[0010] Optionally, the adhesive applicator further includes a connecting block disposed in the receiving cavity and an adhesive scraper connected to the connecting block;

[0011] The glue box has an oblong hole for mounting the connecting block, the oblong hole extending in a direction parallel to the axial direction of the glue wheel, and the scraper has a groove for the edge portion of the glue wheel to pass through, the groove extending radially along the glue wheel.

[0012] Optionally, at least two sets of the connecting blocks and the scraper are symmetrically arranged about the central axis of the rubber wheel.

[0013] Optionally, the rubber wheel includes a glue-dispensing disc and a connecting shaft vertically connected to the center of the glue-dispensing disc;

[0014] The adhesive applicator further includes a servo motor, a coupling connected to the power end of the servo motor, and a first flange cylinder connected to the adhesive box, wherein the first flange cylinder forms an intermediate cavity for accommodating the coupling.

[0015] Optionally, the adhesive applicator further includes a second flange cylinder detachably connected to the first flange cylinder;

[0016] The end of the connecting shaft away from the glue-taking disc passes through the second flange cylinder and extends into the intermediate cavity to be connected to the coupling for transmission.

[0017] The adhesive applicator further includes a first sealing ring connected between the first flange and the second flange, and a second sealing ring connected between the second flange and the connecting shaft.

[0018] Optionally, a thread is formed on the connecting shaft;

[0019] The adhesive applicator also includes a round nut threaded onto the connecting shaft and a bearing coaxially fitted and locked onto the connecting shaft by the round nut. The outer ring of the bearing is installed inside the second flange and is pressed and fixed by the first flange.

[0020] Optionally, at least two of the round nuts are connected side by side on the connecting shaft.

[0021] Optionally, an annular protrusion coaxial with itself is formed on the connecting shaft;

[0022] The annular protrusion is located between the second flange and the glue-taking tray.

[0023] The beneficial effects of the glue application device provided in this application are as follows: Compared with the prior art, in the glue application device provided in this application, the scraper plate horizontally placed on the glue box forms a hole for the glue wheel extending into the receiving cavity to pass through. Since the sliding direction of the scraper plate relative to the glue box is parallel to the axial direction of the screw and the axial direction of the screw is perpendicular to the axial direction of the glue wheel, when the glue adjusting nut rotates and moves along the axial direction of the screw, it can drive the scraper plate connected to the glue adjusting nut to move radially along the glue wheel, so that the two inner end faces of the strip hole are close to or away from the outer circular surface of the glue wheel. In this way, the gap between the two inner end faces of the strip hole on the scraper plate and the outer circular surface of the glue wheel can be flexibly adjusted, thereby flexibly controlling the thickness of the glue layer on the glue wheel. This is beneficial to significantly improve the glue application effect of the glue application device in this application. Furthermore, the scraper plate adopts a strip hole structure to cooperate with the glue wheel. Therefore, the movement direction of the scraper plate can be flexibly adjusted according to the rotation direction of the glue wheel, realizing the function of bidirectional adjustment of one scraper plate, which is far superior to the prior art. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the adhesive application device in the embodiments of this application;

[0026] Figure 2 This is a schematic diagram of the main structure of the adhesive application device in the embodiments of this application;

[0027] Figure 3 For along Figure 2 Cross-sectional view of line AA in the middle;

[0028] Figure 4 This is a three-dimensional schematic diagram of the scraper structure in this embodiment.

[0029] The reference numerals in the figures are as follows: 101, glue box; 102, receiving cavity; 103, glue wheel; 104, glue scraper; 1041, strip hole; 105, screw; 106, glue adjusting nut; 107, connecting block; 108, glue scraper; 109, oblong hole; 110, groove; 111, servo motor; 112, coupling; 113, first flange; 114, intermediate cavity; 115, second flange; 116, first sealing ring; 117, second sealing ring; 118, round nut; 119, bearing; 120, annular protrusion; 131, glue dispensing tray; 132, connecting shaft. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] Please refer to the following: Figures 1 to 4 The following describes a glue application device provided in an embodiment of this application. This glue application device includes a glue box 101, a glue wheel 103, a glue scraper 104, a screw 105, and a glue adjusting nut 106. Wherein:

[0035] The glue box 101 forms a receiving cavity 102 with an open top; the glue wheel 103 extends into the receiving cavity 102 and is used to rotate about its own central axis; the glue scraper 104 is slidably connected to the top of the glue box 101 and forms a strip-shaped hole 1041 for the glue wheel 103 to pass through; the screw 105 is connected to the glue box 101 and is perpendicular to the axial direction of the glue wheel 103, and the axial direction of the screw 105 is also parallel to the sliding direction of the glue scraper 104 relative to the glue box 101; the glue adjusting nut 106 is threadedly connected to the screw 105 and rotatably connected to the glue scraper 104. In this embodiment, the glue wheel 103 is used to take glue from the receiving cavity 102 and apply glue to the target cardboard box die-cut sample through the part passing through the glue scraper 104.

[0036] According to the structure provided in this embodiment, in the glue applicator provided in this embodiment, the scraper 104 horizontally placed on the glue box 101 forms a strip-shaped hole 1041 through which the glue wheel 103 extending into the receiving cavity 102 passes. Since the sliding direction of the scraper 104 relative to the glue box 101 is parallel to the axial direction of the screw 105 and the axial direction of the screw 105 is perpendicular to the axial direction of the glue wheel 103, when the glue adjusting nut 106 rotates and moves along the axial direction of the screw 105, it can drive the scraper 104 connected to the glue adjusting nut 106 to move radially along the glue wheel 103, so that the two inner end faces of the strip-shaped hole 1041 approach each other. By moving the scraper blade 104 closer to or further away from the outer surface of the rubber wheel 103 (i.e., the outer surface of the glue-taking tray 131), the gap between the two inner end faces of the strip hole 1041 on the scraper blade 104 and the outer surface of the rubber wheel 103 can be flexibly adjusted. This allows for flexible control of the thickness of the glue layer on the rubber wheel 103, which significantly improves the glue application effect of the glue-applying device in this embodiment. Furthermore, the scraper blade 104, with its strip hole 1041 structure, cooperates with the rubber wheel 103. Therefore, the movement direction of the scraper blade 104 can be flexibly adjusted according to the rotation direction of the rubber wheel 103, enabling a single scraper blade 104 to achieve bidirectional adjustment, which is far superior to the prior art.

[0037] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 The glue application device also includes a connecting block 107 disposed in the receiving cavity 102 and a scraper 108 connected to the connecting block 107; an oblong hole 109 for mounting the connecting block 107 is formed on the glue box 101, the oblong hole 109 extends in a direction parallel to the axial direction of the glue wheel 103, and a groove 110 for the edge portion of the glue wheel 103 to pass through is formed on the scraper 108, the groove 110 extends radially along the glue wheel 103. According to the above structure provided in this embodiment, the scraper 108 connected to the connecting block 107 can move with the connecting block 107 along the axial direction of the glue wheel 103, so that the gap between the side wall of the scraper 104 for forming the groove 110 and the glue dispensing tray 131 of the glue wheel 103 can be flexibly adjusted, which is beneficial to further improve the glue application effect of the glue application device in this embodiment. It can be understood that the scraper 108 is mainly used to scrape off the glue on both sides of the glue dispensing tray 131, and will not scrape off the glue on the outer circular surface of the glue dispensing tray 131.

[0038] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4The connecting block 107 and the scraper blade 108 are symmetrically arranged in at least two sets about the central axis of the rubber wheel 103. According to the structure provided in this embodiment, the at least two sets of scraper blades 108 symmetrically arranged about the central axis of the rubber wheel 103 can scrape the adhesive layer attached to both sides of the rubber wheel 103 into the receiving cavity 102, regardless of whether the rubber wheel 103 rotates clockwise or counterclockwise. This makes the glue application device provided in this embodiment applicable to more glue application conditions and has a better glue application effect.

[0039] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 The glue roller 103 includes a glue dispensing disc 131 and a connecting shaft 132 vertically connected to the center of the glue dispensing disc 131; the glue application device also includes a servo motor 111, a coupling 112 connected to the power end of the servo motor 111, and a first flange cylinder 113 connected to the glue box 101; the first flange cylinder 113 forms an intermediate cavity 114 for accommodating the coupling 112.

[0040] According to the structure provided in this embodiment, the connecting shaft 132 on the rubber wheel 103 is directly connected to the power end of the servo motor 111 through the coupling 112. This can significantly improve the rotational stability of the rubber wheel 103. The intermediate cavity 114 formed by the first flange cylinder 113 to accommodate the coupling 112 forms a sealed structure after the first flange cylinder 113 and the second flange cylinder 115 are connected, so that the coupling 112 works in the sealed space, avoiding the influence of glue. This allows it to work stably for a long time and helps to extend the service life of the glue application device provided in this embodiment.

[0041] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 The adhesive applicator also includes a second flange 115 detachably connected to the first flange 113; one end of the connecting shaft 132 away from the adhesive dispensing tray 131 passes through the second flange 115 and extends into the intermediate cavity 114 for transmission connection with the coupling 112; the adhesive applicator also includes a first sealing ring 116 connected between the first flange 113 and the second flange 115 and a second sealing ring 117 connected between the second flange 115 and the connecting shaft 132, wherein the second sealing ring 117 is a lip seal ring and is disposed on the second flange 115 near the adhesive dispensing tray 131. According to the above structure provided in this embodiment, the second flange 115 detachably connected to the first flange 113 makes the installation of the adhesive wheel 103 more convenient and maintains the stable rotation of the connecting shaft 132, which is beneficial to further improve the stability of the adhesive applicator in this embodiment.

[0042] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4The connecting shaft 132 has a thread; the adhesive applicator also includes a round nut 118 threaded onto the connecting shaft 132 and a bearing 119 coaxially fitted and locked onto the connecting shaft 132 by the round nut 118. The outer ring of the bearing 119 is installed inside the second flange cylinder 115 and is pressed and fixed by the first flange cylinder 113. In this way, the second sealing ring 117 can be conveniently installed at the corresponding sealing position on the outer end of the second flange cylinder 115, the bearing 119 can be installed inside the second flange cylinder 115 and then inserted into the connecting shaft 132. After the bearing 119 is locked to the connecting shaft 132 with the round nut 118, the rubber wheel 103 and the second flange cylinder 115 form a small assembly. Finally, it is combined and connected to the first flange cylinder 112, which also completes the axial fixation of the bearing 119 inside the second flange cylinder 115. In this way, compared with the installation method of using a retaining ring for axial positioning of the bearing in the transmission structure, this technical solution completely eliminates the axial movement of the bearing 119, greatly improves the working conditions of the second sealing ring 117, and ensures the sealing effect. This is conducive to further improving the stability of the glue application device in this embodiment.

[0043] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 At least two round nuts 118 are connected side by side on the connecting shaft 132. According to the structure provided in this embodiment, the two round nuts 118 that are fitted side by side on the connecting shaft 132 can effectively prevent the connecting shaft 132 from becoming loose, which is beneficial to further improving the stability of the glue application device in this embodiment.

[0044] In another embodiment of this application, please refer to [the relevant document / reference]. Figures 1 to 4 An annular protrusion 120, coaxial with itself, is formed on the connecting shaft 132; the annular protrusion 120 is located between the second flange cylinder 115 and the glue dispensing tray 131. According to the structure provided in this embodiment, the annular protrusion 120 between the second flange cylinder 115 and the glue dispensing tray 131 can effectively block the glue material on the side of the annular protrusion 120 away from the second flange cylinder 115. That is, the glue scraped from the glue dispensing tray 131 by the glue scraper 104 and glue scraper 108 will flow back into the receiving cavity 102 during the axial flow along the surface of the connecting shaft 132 due to the blocking effect of the annular protrusion 120, reducing the amount of glue reaching the second sealing ring 117. In this way, the glue is less likely to enter the bearing 119, which is beneficial to further improve the stability of the glue application device in this embodiment.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A glue-applying device, characterized in that, include: The plastic box (101) forms a receiving cavity (102) with an open top. A rubber wheel (103) extends partially into the receiving cavity (102) and is used to rotate about its own central axis; A scraper (104) is slidably connected to the top of the glue box (101) and forms a strip hole (1041) through which the glue wheel (103) passes. A screw (105) is connected to the glue box (101) and is perpendicular to the axial direction of the glue wheel (103). The axial direction of the screw (105) is also parallel to the sliding direction of the scraper (104) relative to the glue box (101). The glue-adjusting nut (106) is threaded to the screw (105) and rotatably connected to the glue scraper (104).

2. The adhesive applicator as described in claim 1, characterized in that: The adhesive applicator also includes a connecting block (107) disposed in the receiving cavity (102) and a scraper (108) connected to the connecting block (107). The glue box (101) has an oblong hole (109) for mounting the connecting block (107), the oblong hole (109) extends in a direction parallel to the axial direction of the glue wheel (103), and the scraper (108) has a groove (110) for the edge portion of the glue wheel (103) to pass through, the groove (110) extends radially along the glue wheel (103).

3. The adhesive applicator as described in claim 2, characterized in that: The connecting block (107) and the scraper (108) are arranged symmetrically about the central axis of the rubber wheel (103) in at least two sets.

4. The adhesive applicator as described in claim 1, characterized in that: The rubber wheel (103) includes a glue-dispensing disc (131) and a connecting shaft (132) vertically connected to the center of the glue-dispensing disc (131). The glue applicator also includes a servo motor (111), a coupling (112) connected to the power end of the servo motor (111), and a first flange (113) connected to the glue box (101). The first flange (113) forms an intermediate cavity (114) for accommodating the coupling (112).

5. The adhesive applicator as described in claim 4, characterized in that: The adhesive applicator also includes a second flange (115) that is detachably connected to the first flange (113). The end of the connecting shaft (132) away from the glue-taking disc (131) passes through the second flange cylinder (115) and extends into the intermediate cavity (114) to be connected to the coupling (112) for transmission. The adhesive applicator further includes a first sealing ring (116) connected between the first flange (113) and the second flange (115) and a second sealing ring (117) connected between the second flange (115) and the connecting shaft (132).

6. The adhesive applicator as described in claim 5, characterized in that: A thread is formed on the connecting shaft (132); The adhesive applicator also includes a round nut (118) threaded onto the connecting shaft (132) and a bearing (119) coaxially fitted and locked onto the connecting shaft (132) by the round nut (118). The outer ring of the bearing (119) is installed inside the second flange (115) and is abutted and fixed by the first flange (113).

7. The adhesive applicator as described in claim 6, characterized in that: At least two round nuts (118) are connected side by side on the connecting shaft (132).

8. The adhesive applicator as described in claim 5, characterized in that: An annular protrusion (120) coaxial with itself is formed on the connecting shaft (132). The annular protrusion (120) is located between the second flange cylinder (115) and the glue dispensing tray (131).

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