A capping device

Abstract

The present invention relates to the field of packaging machinery, and more specifically to a capping device. It comprises a frame, on which a pressing component, an aligning component, and a conveying component are provided, wherein the conveying area of ​​the conveying component is located between the pressing component and the aligning component; the pressing component comprises a capping component, an upper base, and an upper lifting cylinder, wherein the upper lifting cylinder drives the upper base to perform linear reciprocating motion in the vertical direction; the aligning component comprises a aligning component, a lower base, a lower lifting cylinder, and a driving component, wherein the aligning component is rotatably arranged on the lower base, and the driving component drives the aligning component to rotate. A snap-fitting portion is provided at the upper end of the aligning component, and the bottom of the cup is snapped onto the snap-fitting portion. The snap-fitting portion restricts the cup from rotating relative to the aligning component, and the lower base is driven by the lifting cylinder to perform linear reciprocating motion in the vertical direction. The present invention can adjust the angle of the cup during the capping operation so that the cup lid and the cup face each other at the same angle, ensuring that the cup lid can be accurately snapped onto the cup.

Description

Technical Field

[0001] The present invention relates to the field of packaging machinery, and in particular to a capping device. Background Art

[0002] Cup products require a lid to be attached to the top of the cup during production. The lid is attached to the cup via a threaded structure or a snap-fit ​​structure. The threaded structure is achieved by a capping device, while the snap-fit ​​structure is achieved by a capping device.

[0003] Existing capping devices operate by restraining the cup and then pressing the lid. However, this only works for cups and lids with circular cross-sections. In this case, the lid and cup will not be misaligned at any angle when mating. However, the shape of the cup lid and cup is not limited to circular shapes. For example, if the cross-section of the cup lid and cup is a regular polygon, the first requirement during the mating process is to ensure that the cup lid and cup are aligned at the same angle. Otherwise, the corners of the cup lid and the cup will be misaligned, and the two will definitely not be able to achieve a snap-on connection, which will significantly reduce the success rate of the capping operation and even cause serious problems such as abnormal production. Summary of the Invention

[0004] In response to the above-mentioned defects in the existing cup product survival technology, the present invention provides a capping device that can achieve the following technical effects: it can adjust the angle of the cup during the capping operation so that the cup cover and the cup are facing each other at the same angle, ensuring that the cup cover can be accurately snapped onto the cup, thereby improving the success rate of the capping operation.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a capping device, comprising a frame, a pressing part, a aligning part, and a conveying part are provided on the frame, the pressing part is located above the aligning part, and the conveying area of ​​the conveying part is located between the pressing part and the aligning part; the pressing part comprises a capping part, an upper base, and an upper lifting cylinder, the capping part is arranged in a straight line on the upper base in the horizontal direction, the upper base is installed on the upper lifting cylinder, and the upper lifting cylinder drives the upper base to perform a straight reciprocating motion in the vertical direction; the aligning part comprises a aligning part, a lower base, a lower lifting cylinder, and a driving part, the aligning part is rotatably arranged on the lower base and arranged in a straight line in the horizontal direction on the lower base, the driving part drives the aligning part to rotate, a buckling part is provided at the upper end of the aligning part, the bottom of the cup is buckled on the buckling part, the buckling part limits the cup from rotating relative to the aligning part, the lower base is installed on the lower lifting cylinder and is driven by the lower lifting cylinder to perform a straight reciprocating motion in the vertical direction.

[0006] In this technical solution, the cup lid is placed on top of the cup in advance, but the cup lid is not necessarily aligned with the cup at the correct angle. The cup and cup lid are placed together on the conveying component and conveyed in a straight line between the pressing component and the aligning component. The upper lifting cylinder drives the upper base to descend, and the cover pressing member on the upper base then descends, exerting downward pressure on the cup lid to press the cup lid onto the cup. The lower lifting cylinder drives the lower base to rise, and the aligning member on the lower base then rises, carrying the cup away from the conveying component. The driving member drives the aligning member to rotate. Since the bottom of the cup is engaged with the snapping part, the cup rotates with the aligning member until the relative angles of the cup and cup lid are aligned. Finally, the cover pressing member presses down further until the cup lid is completely buckled onto the cup. The angle of the cup is adjusted by the aligning member driving the cup to rotate, so that the cup lid and the cup face each other at the same angle, ensuring that the cup lid can be accurately snapped onto the cup and improving the success rate of the cover pressing operation.

[0007] Specifically, the conveying component includes a template and a drive mechanism. The drive mechanism drives the template in linear motion. The template has a die hole for placing cups. A cup with a lid is placed in the die hole. As the template moves linearly, the cup becomes larger at the top and smaller at the bottom, with the center of the cup locked in the die hole. This facilitates the alignment of the cup and prevents interference between the cup and the template during rotation.

[0008] Specifically, the cover assembly includes a pressure plate, a mounting post, and a spring. The upper end of the mounting post is fixed to the upper base. The spring and pressure plate are both mounted on the mounting post. The lower end of the spring presses against the cover through elastic force. The spring's elastic force pushes the pressure plate downward, creating an elastic contact between the cover and the cup lid, reducing the chance of the pressure plate damaging the cup lid.

[0009] Specifically, the aligning part includes a support column and a support plate. The support plate is fixed to the upper end of the support column. The lower end of the support column is rotatably set on the lower base through a bearing I. The top of the support plate is provided with convex teeth distributed in an annular shape with equal angles. The bottom of the cup is buckled on the convex teeth. The bottom of the cup is usually designed with a structure such as reinforcing ribs. The convex teeth abut against the reinforcing ribs to limit the rotation of the cup relative to the support plate. The support plate and the support column are connected together. The cup rotates with the rotation of the support column, thereby aligning the cup lid for accurate capping operation in the next step.

[0010] To ensure smooth rotation of the support columns, the alignment assembly also includes a transmission component, comprising a housing, gears, and a rotating tube. The housing is fixed to the frame, while the rotating tube rotates within the housing via bearing II. The gears are fixed to the lower end of the rotating tube. The drive component includes a timing belt and a motor. All gears are connected by a timing belt, which is driven by the motor to rotate all the support columns. Axially distributed slots are provided on the inner wall of the rotating tube, and flat keys are provided on the exterior of the support columns, which slide within the slots. The rotating tube rotates solely within the housing, while the flat keys and slots allow the support columns to slide vertically relative to the rotating tube. To enhance sliding stability, a sliding sleeve can be installed between the support columns and the rotating tube. Furthermore, the circumferential restraints provided by the flat keys and slots allow the rotating tube to rotate with the support columns. Thus, the support columns can both rotate about their own axes and slide up and down relative to the housing, thereby enabling the support tray to lift and rotate the cups.

[0011] The advantages of the present invention are as follows: the cup and cup lid are placed together on the template and transported in a straight line between the pressing component and the aligning component. The pressing component is driven down by the upper lifting cylinder to apply downward pressure to the cup lid, pressing the cup lid onto the cup. The aligning component is driven up by the lower lifting cylinder to lift the cup away from the template. The driving component drives the aligning component to rotate. Since the cup and the aligning component are interlocked, the cup rotates with the aligning component until the relative angles of the cup and the cup lid are aligned. Finally, the pressing component is further pressed down until the cup lid is completely buckled onto the cup. The angle of the cup is adjusted by the aligning component driving the cup to rotate so that the cup lid and the cup are facing each other at the same angle, ensuring that the cup lid can be accurately buckled onto the cup, thereby improving the success rate of the capping operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic diagram of the structure of the cover device in the present invention;

[0013] Figure 2 is a cross-sectional view of the gland device of the present invention;

[0014] Figure 3 It is a structural diagram for locating components in the present invention.

[0015] Figure markings: frame 100, guide sleeve 101, template 200, upper base 300, upper lifting cylinder 301, guide column 302, pressure plate 303, mounting column 304, spring 305, lower base 400, lower lifting cylinder 401, motor 402, support column 403, support plate 404, bearing I 405, convex tooth 406, housing 407, gear 408, rotating tube 409, bearing II 410, synchronous belt 411, slide groove 412, flat key 413. DETAILED DESCRIPTION

[0016] In the description of this embodiment, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," and "rear" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of the present invention and simplify the description, and are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, these terms should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not intended to indicate or imply relative importance.

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Embodiments of the present invention:

[0019] like Figure 1 、 Figure 2 、 Figure 3 As shown in , a capping device includes a frame 100, on which a pressing component, an aligning component, and a conveying component are provided, and the pressing component is located above the aligning component.

[0020] The conveying component includes a template 200 and a driving mechanism. The driving mechanism drives the template 200 to move in a straight line. A mold hole is provided on the template 200. The cup with the cup lid is placed in the mold hole and conveyed in a straight line along with the template 200. The conveying area of ​​the template 200 is located between the pressing component and the aligning component.

[0021] The downward pressing component includes a cover member, an upper base 300, and an upper lifting cylinder 301. The cover member is arranged in a straight line on the upper base 300 in the horizontal direction. The upper base 300 is installed on the upper lifting cylinder 301. The upper lifting cylinder 301 drives the upper base 300 to perform linear reciprocating motion in the vertical direction. The cover member includes a pressure plate 303, a mounting post 304, and a spring 305. The upper end of the mounting post 304 is fixed to the upper base 300. The spring 305 and the cover member 303 are both mounted on the mounting post 304. The lower end of the spring 305 is pressed against the cover by elastic force. The elastic force of the spring 305 presses the pressure plate 303 downward, so that elastic contact is formed between the cover and the cup lid, reducing the probability of the pressure plate 303 crushing the cup lid.

[0022] The aligning component includes an aligning part, a lower base 400, a lower lifting cylinder 401, and a driving part. The aligning part is rotatably set on the lower base 400 and arranged in a straight line along the horizontal direction on the lower base 400. The lower base 400 is installed on the lower lifting cylinder 401 and is driven by the lower lifting cylinder 401 to perform linear reciprocating motion in the vertical direction.

[0023] The aligning parts include a support column 403 and a support plate 404. The support plate 404 is fixed to the upper end of the support column 403. The lower end of the support column 403 is rotatably set on the lower base 400 through a bearing I 405. The top of the support plate 404 is provided with convex teeth 406 distributed in an annular shape with equal angles. The bottom of the cup is snapped on the convex teeth 406. The bottom of the cup is usually designed with a structure similar to a reinforcing rib. The convex teeth 406 abut against the reinforcing rib to limit the rotation of the cup relative to the support plate 404. The support plate 404 and the support column 403 are connected together. The cup rotates with the rotation of the support column 403, thereby aligning the cup lid for the next step of accurate capping operation.

[0024] In order to increase the stability of the upper base 300 and the lower base 400 in the up and down movement, the upper base 300 and the lower base 400 are respectively provided with vertically arranged guide columns 302, and the frame 100 is provided with a guide sleeve 101. The guide column 302 is slidably arranged in the guide sleeve 101 to provide guidance for the movement of the upper base 300 and the lower base 400.

[0025] To ensure smooth rotation of the support column 403, the alignment component also includes a transmission component, which includes a housing 407, a gear 408, and a rotating tube 409. The housing 407 is fixed to the frame 100, and the rotating tube 409 is rotatably arranged inside the housing 407 via a bearing II 410. The gear 408 is fixed to the lower end of the rotating tube 409. The driving component includes a synchronous belt 411 and a motor 402. All gears 408 are connected by a synchronous belt 411, which is driven by the motor 402 to drive all the rotating tubes 409 to rotate. The inner side wall of the rotating tube 409 is provided with an axially distributed slide groove 412, and the outer side of the support column 403 is provided with a flat key 413, which is embedded in the slide groove 412 and can slide up and down in the slide groove 412. The rotating tube 409 only rotates within the housing 407, while the support column 403 can slide vertically up and down relative to the rotating tube 409 due to the sliding fit between the flat key 413 and the slide groove 412. To improve the stability of the sliding, a sliding sleeve can be installed between the support column 403 and the rotating tube 409 to provide a guide for the sliding of the support column 403. In addition, the circumferential limit function of the flat key 413 and the slide groove 412 allows the support column 403 to rotate with the rotating tube 409. Therefore, the support column 403 can rotate about its own axis and slide up and down relative to the housing 407, thereby meeting the lifting and rotation operations of the support plate 404 to the cup.

[0026] In this embodiment, the cup is larger at the top and smaller at the bottom. The cup lid is pre-placed above the cup and placed together in the die hole, but the lid isn't necessarily aligned with the cup at the correct angle. The cup, along with the template 200, is transported linearly between the downward pressing and aligning components. The upper lifting cylinder 301 lowers the upper base 300, and the capping member on the upper base 300 descends accordingly, causing the pressing plate 303 to apply downward pressure on the cup lid, pressing it against the cup. The lower lifting cylinder 401 then raises the lower base 400, causing the support column 403 on the lower base 400 to rise relative to the housing 407. The support plate 404 lifts the cup out of the die hole. The driving member rotates the support column 403. As the bottom of the cup engages with the protruding teeth 406 on the support plate 404, the cup rotates with the support plate 404 until the cup and lid are aligned. Because the cup is elevated to a certain height, it rotates without interfering with the template 200. Finally, the capping member presses down further until the pressing plate 303 secures the cup lid to the cup. The present invention adjusts the angle of the cup by rotating the cup with the locating member, so that the cup cover and the cup face each other at the same angle, ensuring that the cup cover can be accurately snapped onto the cup, thereby improving the success rate of the capping operation.

[0027] The specific description of the present invention in the above embodiments is only used to further illustrate the present invention and cannot be understood as limiting the scope of protection of the present invention. Technical engineers in this field may make some non-essential improvements and adjustments to the present invention based on the contents of the above invention, which fall within the scope of protection of the present invention.

Claims

1. A capping device, characterized in that: The invention comprises a frame (100), wherein a pressing component, a locating component and a conveying component are provided on the frame (100), wherein the pressing component is located above the locating component, and the conveying area of ​​the conveying component is located between the pressing component and the locating component; the pressing component comprises a pressure cover component, an upper base (300) and an upper lifting cylinder (301), wherein the pressure cover component is arranged linearly on the upper base (300) in a horizontal direction, and the upper base (300) is installed on the upper lifting cylinder (301), and the upper lifting cylinder (301) drives the upper base (300) to perform linear reciprocating motion in a vertical direction; the locating component comprises a locating component, a lower base (400), a lower lifting cylinder (401) and a driving component, wherein the locating component is rotatably arranged on the lower base (400) and is moved along the water flow on the lower base (400). The cup is arranged in a straight line in the horizontal direction, and the driving member drives the locating member to rotate. The upper end of the locating member is provided with a buckling portion, and the bottom of the cup is buckled on the buckling portion. The buckling portion limits the cup from rotating relative to the locating member. The lower base (400) is installed on the lower lifting cylinder (401) and is driven by the lower lifting cylinder (401) to perform linear reciprocating motion in the vertical direction. The locating member includes a support column (403) and a support plate (404). The support plate (404) is fixed to the upper end of the support column (403). The lower end of the support column (403) is rotatably set on the lower base (400) through a bearing I (405). The top of the support plate (404) is provided with convex teeth (406) distributed in an equiangular ring shape. The bottom of the cup is buckled on the convex teeth (406). The locating member also The invention comprises a transmission member, which comprises a housing (407), a gear (408), and a rotating tube (409). The housing (407) is fixed on the frame (100). The rotating tube (409) is rotatably arranged inside the housing (407) through a bearing II (410). The gear (408) is fixed on the lower end of the rotating tube (409). The driving member drives the gear (408) to rotate to drive the rotating tube (409) to rotate. An axially distributed slide groove (412) is provided on the inner side wall of the rotating tube (409). A flat key (413) is provided on the outside of the support column (403). The flat key (413) is embedded in the slide groove (412) and can slide in the slide groove (412). The support column (403) rotates following the rotating tube (409). The moving parts include a synchronous belt (411) and a motor (402), all gears (408) are connected by a synchronous belt (411), and the synchronous belt (411) is driven by the motor (402) to drive all the aligning parts to rotate. The pressure cover part includes a pressure plate (303), a mounting column (304), and a spring (305). The upper end of the mounting column (304) is fixed on the upper base (300), and the spring (305) and the pressure plate (303) are both sleeved on the mounting column (304). The lower end of the spring (305) is pressed against the pressure plate (303) by elastic force. The conveying part includes a template (200) and a driving mechanism. The driving mechanism drives the template (200) to move in a straight line. The template (200) is provided with a mold hole for placing a cup.

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