Inner cup body rotary gluing device

Abstract

The utility model relates to a rotary gluing device for a cup body of an inner cup. The connecting piece is arranged on the frame body; the cup body transmission mechanism is rotatably arranged on the connecting piece and is used for driving the cup body of the inner cup to rotate; the driving assembly is fixedly mounted on the frame body and used for driving the inner cup body transmission part to rotate; and the gluing assembly is fixedly arranged on the frame body, and the gluing assembly is arranged towards the outer wall of the cup body of the inner cup. In one embodiment, the cup body transmission mechanism comprises a mold which is in running fit with the connecting piece and is used for sleeving the inner cup body on the mold; and the mold is fixed on the connecting piece through the locking structure. The inner cup body is arranged on the cup body transmission mechanism in a sleeving mode and then rotates, the gluing assembly stably discharges glue, the inner cup body can be fully coated with the glue, the problem that in the prior art, glue coating is not uniform due to glue spinning is solved, and the problem of the depth of glue coating in the cup is completely eradicated.

Description

Technical Field

[0001] This utility model relates to the field of paper cup technology, and in particular to a rotating adhesive coating device for the inner cup body. Background Technology

[0002] Outer-packaged paper cups are typically a double-layered structure with an inner cup and an outer cup stacked together. After being produced by a forming machine, glue needs to be applied between the inner cup and the outer cup body to connect the inner cup and the outer packaging.

[0003] In existing technologies, the glue application method typically involves using a rotating glue gun nozzle inside the outer paper cup to apply glue to the inner wall of the cup. Due to the depth of the cup, the glue gun nozzle needs to be moved, which can lead to uneven glue application. One common approach is to fix the outer cup in place and then rotate the glue gun nozzle to apply glue, or to rotate the outer cup to apply glue to its inner wall. This method also suffers from the cup depth issue, requiring adjustment of the glue gun position. The main reason for this is that the glue gun is connected to an air circuit, making multiple circular motions difficult. Furthermore, the limited space within the paper cup, which decreases with increasing depth, makes it difficult to improve the glue gun nozzle by increasing its size to avoid affecting the uniformity of glue application. Utility Model Content

[0004] Based on this, the purpose of this utility model is to provide a rotary adhesive coating device for the inner cup body of an outer-packaged paper cup that can uniformly apply adhesive to the inner cup body.

[0005] This utility model provides a rotating adhesive coating device for the inner cup body, comprising:

[0006] Frame, connectors, cup body transmission mechanism, drive assembly, and adhesive application assembly;

[0007] The connector is mounted on the frame; the cup body transmission mechanism is rotatably mounted on the connector for driving the inner cup body to rotate; the drive assembly is fixedly mounted on the frame for driving the inner cup body transmission mechanism to rotate; the glue application assembly is fixedly mounted on the frame, facing the outer wall of the inner cup body, and supports the inner wall of the inner cup body through the cup body transmission mechanism, thereby cooperating with the drive assembly to drive the cup body transmission mechanism, so that the inner cup body can rotate, and the glue application assembly can evenly apply glue to the outer wall of the inner cup body.

[0008] In one embodiment, the cup body transmission mechanism includes:

[0009] Mold, locking structure and separation structure;

[0010] The mold and the connector are rotatably coupled to fit the inner cup body onto the mold; the mold is fixed to the connector by the locking structure; the separation structure is provided on the connector to separate the mold from the inner cup body. The addition of the separation structure makes it easier for the inner cup body to detach from the mold, avoiding the problem of incomplete demolding due to the roughness of the outer surface of the mold.

[0011] In one embodiment, the locking structure includes:

[0012] First mounting slot, second mounting slot, pressure cap, lock nut, opening slot, and rotating bearing.

[0013] The connector passes through the first mounting groove and the second mounting groove; the pressure cap is fixedly connected to the mold by a fixing pin and is used to fix one end of the connector, and the pressure cap is fixedly installed at the opening of the first mounting groove; the locking nut is installed in the second mounting groove and is used to fix the other end of the connector; there are three rotating bearings, two of which are fixedly installed in the first mounting groove along the length of the connector, and the other rotating bearing is fixedly installed in the second mounting groove. By using the pressure cap as a sealing tool and a transmission tool to drive the mold to rotate, the complex mechanical transmission structure is reduced; at the same time, two rotating bearings are installed in the first mounting groove, and one rotating bearing in the second mounting groove is used as a multi-point rotation support to ensure smooth rotation and make the glue application more uniform.

[0014] In one embodiment, the separation structure includes:

[0015] Through slot, push rod, push head, return spring, top cover, gas passage and gas generator;

[0016] The through groove is formed within the connector; the push rod is slidably mounted within the through groove via a sliding bearing, the length of the push rod being greater than the length of the connector, and the top cover abutting against the end of the connector. One end of the return spring abuts against the top cover, and the other end abuts against the side wall of the through groove, the side wall of the through groove being stepped. Specifically, the other end of the return spring abuts against the sliding bearing; the push head is fixedly mounted on the other end of the push rod, the push head being located within the second mounting groove and extending out of the through groove; the gas passage sequentially passes through the top cover, the push rod, and the push head; the gas generator is fixedly mounted on the frame and communicates with the gas passage, a gap may exist between the gas generator and the gas passage. By setting the length of the push rod to be greater than the length of the connector, the push rod can drive the push head to push out the inner cup body, and then, in conjunction with the gas generator, the airflow is discharged from the gas passage, thereby better separating the inner cup body and preventing the problem of incomplete demolding caused by an excessively rough outer surface of the mold and the push head alone.

[0017] In one embodiment, a buffer pad is fixedly provided at one end of the connector near the locking nut. The buffer pad can abut against the push head, thereby reducing the impact caused by the reset spring and extending the overall service life.

[0018] In one embodiment, the adhesive application assembly includes:

[0019] Two glue guns are fixedly mounted on the frame along the length of the mold. The distance between the glue dispensing position of each glue gun and the mold is the same. By setting the number of glue guns to more than one, the number of glue application points can be increased. The glue dispensing point changes with the tilt angle of the inner cup body. Compared with the traditional single-point glue dispensing, this makes a significant contribution, improves the problem of uneven glue application, and eliminates the problem of inconvenience in changing the glue dispensing distance according to the cup body. It also eliminates the traditional glue-spinning head technique.

[0020] In one embodiment, the power source assembly includes:

[0021] Drive motor and transmission wheel;

[0022] The drive motor is fixedly mounted on the frame; the transmission wheel is fixedly mounted on the drive motor and abuts against the pressure cover. The drive motor is equipped with a gearbox, and the transmission wheel is connected to the output end of the gearbox. By abutting the transmission wheel and the pressure cover, transmission is achieved through friction, reducing unnecessary and complex mechanical structures and the possibility of failure.

[0023] Therefore, this utility model has the following advantages compared with the prior art:

[0024] 1. The inner cup body rotating adhesive applicator of this utility model involves fitting the inner cup body onto the mold to support the side wall of the inner cup body. Then, the drive component outputs power to the mold, and the roughness of the outer surface of the mold drives the inner cup body to rotate. During the rotation, the adhesive applicator can stably dispense adhesive to coat the inner cup body, avoiding the problem of uneven adhesive application caused by traditional technology due to glue spinning. It also eliminates the problem that the glue spinning head is not easy to penetrate deeply when the adhesive depth inside the cup is too deep.

[0025] 2. According to the inner cup body rotating glue applicator involved in this utility model, by setting at least two glue guns, the problem of traditional technology not being able to increase glue dispensing points is solved. At the same time, the distance between the glue dispensing position of each glue gun and the mold is equal, thereby achieving the effect of fitting the mold and avoiding the problem of uneven glue dispensing due to different mold shapes. It also solves the problem of multi-point glue dispensing.

[0026] 3. According to the inner cup body rotary adhesive coating device involved in this utility model, by adding a separation structure, the inner cup body can be easily demolded, avoiding the problem of low productivity caused by manual demolding. At the same time, with the introduction of gas during demolding, the inner cup body is demolded more smoothly and thoroughly, reducing the problem of excessive friction and inconvenience in demolding caused by the roughness of the outer surface of the mold. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the inner cup body rotating adhesive applicator in this embodiment;

[0028] Figure 2 This is an example. Figure 1 Enlarged schematic diagram of the transmission mechanism in the middle cup body;

[0029] Figure 3 This is an example. Figure 2 A schematic diagram of the cross-sectional structure;

[0030] Figure 4 This is an example. Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0031] Figure label:

[0032] 1. Connectors; 6. Buffer pads;

[0033] 2. Cup body transmission mechanism; 21. Mold; 22. Locking structure; 220. First mounting groove; 221. Second mounting groove; 223. Pressure cap; 222. Locking nut; 24. Rotary bearing; 23. Separation structure; 230. Through groove; 232. Push head; 233. Gas passage; 231. Push rod; 2312. Return spring; 2311. Top cap;

[0034] 3. Drive components; 31. Drive motor; 32. Transmission wheel;

[0035] 4. Glue application assembly; 41. Glue gun;

[0036] 5. Inner cup body. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0043] See Figure 1 This utility model provides a rotating adhesive applicator for an inner cup body. The rotating adhesive applicator includes a frame, at least one connector 1, at least one cup body transmission mechanism 2, a drive assembly 3, and an adhesive applicator 4. Multiple connectors 1 are arranged in a ring on the frame. Each cup body transmission mechanism 2 is rotatably mounted on each connector 1 to drive the inner cup body 5 to rotate. The drive assembly 3 is fixedly mounted on the frame to drive the inner cup body 5 to rotate. The adhesive applicator 4 is fixedly mounted on the frame and faces the outer wall of the inner cup body 5.

[0044] Understandably, when it is necessary to drive the inner cup body 5 to rotate, the drive motor 31 outputs power, changes the output speed through the gearbox, and then the transmission wheel 32 transmits the power to the cup body transmission mechanism 2 through friction, thereby driving the inner cup body 5 to rotate. The inner wall of the inner cup body 5 is supported by the cup body transmission mechanism 2, which in turn drives the cup body transmission mechanism 2 in conjunction with the drive component 3, so that the inner cup body 5 can rotate. Then the glue application component 4 can evenly apply glue to the outer wall of the inner cup body 5. After one of the cup body transmission mechanisms 2 fitted with the inner cup body 5 is glued, the second cup body transmission mechanism 2 fitted with the inner cup body 5 will move between the glue application component 4 and the drive component 3 to wait for glue application.

[0045] Combination Figure 2 and Figure 3As shown, the cup body transmission mechanism 2 includes a mold 21, a locking structure 22, and a separation structure 23; the mold 21 is rotatably engaged with the connecting member 1 to fit the inner cup body 5 onto the mold 21; the mold 21 is fixed to the connecting member 1 by the locking structure 22; the separation structure 23 is provided on the connecting member 1 to separate the mold 21 from the inner cup body 5.

[0046] Understandably, by adding the separation structure 23, the inner cup body 5 can be more easily removed from the mold 21, avoiding the problem of incomplete demolding caused by the rough outer surface of the mold 21.

[0047] Combination Figure 3 As shown, the locking structure 22 includes a first mounting groove 220, a second mounting groove 221, a pressure cap 223, a locking nut 222, an opening groove, and a rotating bearing 24. The connector 1 passes through the first mounting groove 220 and the second mounting groove 221. The pressure cap 223 is fixedly connected to the mold 21 by a fixing pin and is used to fix one end of the connector 1. The pressure cap 223 is fixedly installed at the opening of the first mounting groove 220. The locking nut 222 is installed in the second mounting groove 221 and is used to fix the other end of the connector 1. There are three rotating bearings 24. Two rotating bearings 24 are fixedly installed in the first mounting groove 220 along the length of the connector 1, and the other rotating bearing 24 is fixedly installed in the second mounting groove 221.

[0048] Understandably, by using the pressure cap 223 as a sealing and transmission tool to drive the mold 21 to rotate, the complex mechanical transmission structure is reduced; at the same time, two rotating bearings 24 are installed in the first mounting groove 220, and one rotating bearing 24 in the second mounting groove 221 are used as multi-point rotation support to ensure smooth rotation and make the glue application more uniform.

[0049] Combination Figure 3 and Figure 4As shown, the separation structure 23 includes a through groove 230, a push rod 231, a push head 232, a return spring 2312, a top cover 2311, a gas passage 233, and a gas generating device. The through groove 230 is formed inside the connector 1. The push rod 231 is slidably mounted in the through groove 230 via a sliding bearing. The length of the push rod 231 is greater than the length of the connector 1. The top cover 2311 can abut against the end of the connector 1. One end of the return spring 2312 abuts against the top cover 2311, and the other end abuts against the side wall of the through groove 230. The sidewall of the through groove 230 is stepped. Specifically, the other end of the return spring 2321 abuts against the sliding bearing. The push head 232 is fixedly installed at the other end of the push rod 231. The push head 232 is located in the second mounting groove 221 and extends out of the through groove 230. The gas passage 233 passes through the top cover 2311, the push rod 231 and the push head 232 in sequence. The gas generator is fixedly installed on the frame and communicates with the gas passage 233. There may be a gap at the connection between the gas generator and the gas passage 233.

[0050] Understandably, by setting the length of the ejector pin 231 to be greater than the length of the connector 1, the ejector pin 231 can drive the push head 232 to push out the inner cup body 5. Then, in conjunction with the gas generator, the airflow is discharged from the gas passage, thereby better separating the inner cup body 5 and preventing the problem of incomplete demolding caused by the outer surface of the mold 21 being too rough.

[0051] Combination Figure 3 As shown, a buffer pad 6 is fixedly provided at one end of the connector 1 near the locking nut 222, and the buffer pad 6 can abut against the push head 232.

[0052] Understandably, the buffer pad 6 reduces the impact caused by the reset spring 2312, thus extending the overall service life.

[0053] Combination Figure 1 As shown, the glue application assembly 4 includes two glue guns 41, which are fixedly installed on the frame along the length of the mold 21. The glue outlet position of each glue gun 41 is the same distance from the mold 21, which helps to improve the glue application efficiency.

[0054] Understandably, in other embodiments, the number of glue guns 41 can also be greater than two, increasing the number of glue application points, which can be adjusted according to the tilt angle of the inner cup body 5. Compared with traditional single-point glue application, the existing single-point glue application method, which uses a flicking motion, is not convenient for adjusting the glue application distance to match the cup body. The multi-point glue application of this application helps to improve glue application efficiency while also addressing the problem of uneven glue application.

[0055] Combination Figure 1As shown, the power source assembly includes a drive motor 31 and a transmission wheel 32. The drive motor 31 is fixedly mounted on the frame; the transmission wheel 32 is fixedly mounted on the drive motor 31 and abuts against the pressure cover 223. A gearbox is provided on the drive motor 31, and the transmission wheel 32 is connected to the output end of the gearbox. It is understandable that by abutting the transmission wheel 32 against the pressure cover 223, transmission is achieved through friction, reducing unnecessary and complex mechanical structures and minimizing the possibility of malfunctions.

[0056] Understandably, when it is necessary to apply glue to the inner cup body 5, after the inner cup body 5 is placed on the mold 21, the drive component 3 drives the pressure cap 223 to rotate, so that the mold 21 is driven to rotate, causing the inner cup body 5 to start rotating. At the same time as the inner cup body 5 rotates, the two glue guns 41 start to dispense glue, so that the glue is evenly applied to the outer wall of the inner cup body 5.

[0057] After the glue application is completed, the drive assembly 3 stops outputting power, and an external force presses the top cover 2311, causing the push rod 231 to slide in the through groove 230, thereby pushing the head 232 to push the bottom of the inner cup body 5 out of the mold 21. At the same time, the gas generator generates positive pressure and blows out gas. The gas is transmitted to the bottom of the inner cup body 5 through the gas passage 233 to assist in demolding. When demolding is completed, the gas generator stops blowing air. At this time, the return spring 2312 is compressed. When the external force disappears, the return spring 2312 resets and drives the push rod 231 back to the initial position, pushing the head 232 back into the second mounting groove 221 and abutting against the buffer pad 6.

[0058] 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.

[0059] 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 rotary adhesive applicator for inner cup body, used for applying adhesive to the inner cup body (5), characterized in that, include: Frame; At least one connector (1) is disposed on the frame; At least one cup body transmission mechanism (2) is rotatably mounted on the connector (1) for driving the inner cup body (5) to rotate; The drive assembly (3) is fixedly installed on the frame and is used to drive the cup body transmission mechanism (2) to rotate; and The glue application assembly (4) is fixedly installed on the frame, and the glue application assembly (4) is positioned facing the outer wall of the inner cup body (5); The cup body transmission mechanism (2) includes: Mold (21), the mold (21) is rotatably engaged with the connector (1) for fitting the inner cup body (5) onto the mold (21); A locking structure (22) is provided, wherein the mold (21) is fixed to the connector (1) by means of the locking structure (22); Separation structure (23) is provided on the connector (1) for separating the mold (21) from the inner cup body (5).

2. The inner cup body rotary adhesive applicator according to claim 1, characterized in that, The locking structure (22) includes: A first mounting groove (220) and a second mounting groove (221) are respectively opened at both ends of the mold (21), and the connector (1) passes through the first mounting groove (220) and the second mounting groove (221); A pressure cap (223) is fixedly connected to the mold (21) and used to fix one end of the connector (1). The pressure cap (223) includes an opening slot formed on the pressure cap (223) for the connector (1) to pass through. The pressure cap (223) is fixedly installed at the opening of the first mounting slot (220). A locking nut (222) is installed in the second mounting groove (221) to fix the other end of the connector (1); At least one rotating bearing (24) is installed in the first mounting slot (220) or the second mounting slot (221).

3. The inner cup body rotary adhesive applicator according to claim 2, characterized in that, The separation structure (23) includes: A through groove (230) is formed in the connector (1); A push rod (231) is slidably installed in the through groove (230). The length of the push rod (231) is greater than the length of the connector (1). The push rod (231) includes a return spring (2312) sleeved on the push rod (231) and a top cover (2311) fixedly installed at the end of the push rod (231). The top cover (2311) can abut against the end of the connector (1). One end of the return spring (2312) abuts against the top cover (2311) and the other end abuts against the side wall of the through groove (230). The side wall of the through groove (230) is stepped. A push head (232) is fixedly installed at the other end of the top rod (231). The push head (232) is located in the second mounting groove (221) and extends out of the through groove (230).

4. The inner cup body rotary adhesive applicator according to claim 3, characterized in that, The separation structure (23) also includes: Gas passage (233), the gas passage (233) passing through the top cover (2311), the push rod (231) and the push head (232) in sequence; A gas generating device is fixedly installed on the frame and connected to the gas passage (233).

5. The inner cup body rotary adhesive applicator according to claim 4, characterized in that, A buffer pad (6) is fixedly provided at one end of the connector (1) near the locking nut (222), and the buffer pad (6) can abut against the push head (232).

6. The inner cup body rotary adhesive applicator according to claim 2, characterized in that, There are multiple rotating bearings (24), at least one rotating bearing (24) is fixedly installed in the first mounting groove (220), and at least one rotating bearing (24) is fixedly installed in the second mounting groove (221).

7. The inner cup body rotary adhesive applicator according to claim 1, characterized in that, The adhesive coating assembly (4) includes: At least two glue guns (41) are fixedly mounted on the frame along the length of the mold (21).

8. The inner cup body rotary adhesive applicator according to claim 7, characterized in that, The distance between the glue dispensing position of each glue gun (41) and the mold (21) is the same.

9. The inner cup body rotary adhesive applicator according to claim 2, characterized in that, The power source components include: A drive motor (31) is fixedly installed on the frame; A transmission wheel (32) is fixedly installed on the drive motor (31), and the transmission wheel (32) is connected to the pressure cover (223).

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