Automatic carton packaging equipment

Abstract

The invention relates to automatic carton packaging equipment. The multiple rolling suction mechanisms are arranged above the conveying guide rail and correspond to two top cover flaps of the carton, each rolling suction mechanism comprises a mounting frame and a roller, the axis of the roller is horizontally arranged and is perpendicular to the moving direction of the carton, the roller comprises a center cylinder and an adsorption cylinder rotationally assembled outside the center cylinder, the center cylinder is fixedly connected with the mounting frame, and the mounting frame is provided with an internal channel. One end of the internal channel is connected with the vacuum pump, the other end of the internal channel is communicated with an inner cavity of the center cylinder, a plurality of adsorption units are spirally distributed on the peripheral face of the adsorption cylinder, each adsorption unit comprises a suction cup and a movable channel communicated with the suction cup, and the movable channels are located in the adsorption cylinder and arranged in the radial direction of the adsorption cylinder; a row of fixed channels are arranged on the lower portion of the center cylinder, and each fixed channel and the corresponding movable channel are located on the same circle with the axis of the center cylinder as the circle center, so that all the rotating movable channels are sequentially communicated with the corresponding fixed channels, and the top cover lappets are adsorbed upwards through the suction cups.

Description

Technical Field

[0001] This invention relates to an automatic cardboard box packaging device. Background Technology

[0002] Automatic carton packaging equipment includes conveying equipment, carton opening equipment, sealing equipment, and strapping equipment, enabling fully automated carton sealing. The sealing equipment can quickly attach the two top flaps of the carton using tape during its movement. However, in actual use, due to the lack of support under the flaps, the limited strength of the flaps themselves, and uneven surfaces, the tape may not adhere firmly, leading to an increased rate of unsatisfactory carton sealing. Summary of the Invention

[0003] The purpose of this invention is to provide an automatic carton packaging device to solve the technical problem that the tape is not firmly adhered when sealing existing cartons because the bottom of the top flap is not supported.

[0004] The technical solution of the present invention is as follows: An automatic carton packaging device includes: Conveyor rails are used to transport cartons and guide and position them during the carton transport process. Tape application mechanism for applying tape between the flaps of a cardboard box; The roller suction mechanism, consisting of multiple rollers, is positioned above the conveyor guide rail and corresponds to the two top flaps of the carton. It includes a mounting frame and rollers. The rollers' axis is horizontally positioned and perpendicular to the carton's direction of movement. Each roller comprises a central cylinder and a suction cylinder rotatably mounted outside the central cylinder. The central cylinder is fixedly connected to the mounting frame, which has an internal channel. One end of the internal channel is connected to a vacuum pump, and the other end communicates with the inner cavity of the central cylinder. Multiple suction units are spirally distributed on the outer circumference of the suction cylinder. Each suction unit includes a suction cup and a movable channel communicating with the suction cup. The movable channel is located inside the suction cylinder and arranged radially along the cylinder. A row of fixed channels is located at the lower part of the central cylinder. Each fixed channel and its corresponding movable channel lie on the same circle centered on the axis of the central cylinder, allowing the rotating movable channels to sequentially connect with their corresponding fixed channels, thereby using the suction cups to suction the top flaps upwards.

[0005] The beneficial effects of this technical solution are as follows: When the automatic carton packaging equipment is in use, the two top flaps of the carton are already folded when they enter the conveyor rail. They remain folded and joined in the conveyor rail due to the upper guide structure. When passing through the roller suction mechanism area, the suction cups of the roller suction mechanism are connected to the vacuum pump sequentially through the movable channel, fixed channel, the inner cavity of the central cylinder, and the internal channel of the mounting frame. Only the lower suction cup can connect to the fixed channel facing downwards. Therefore, the suction cups below the suction cylinder are in a vacuum state, generating suction force to adsorb the top flaps of the carton. This process is repeated multiple times. Under the combined action of the suction mechanism, both top flaps are drawn upwards, providing strong support for the subsequent tape application mechanism. This ensures sufficient pressure for the tape to adhere firmly to the upper surface of the corresponding top flaps, achieving a tight seal. Furthermore, because the suction cylinder rotates with the movement of the carton, the spirally distributed suction units on its outer circumference rotate downwards one by one, connecting with the corresponding fixed channels and generating vacuum suction at their suction cups. This ensures that the suction force of the suction cylinder on the top flaps is nearly continuous, providing strong support throughout the entire application process. Therefore, this application, through a simple structural design, provides continuous and strong suction support for the moving top flaps, ensuring a point of application for the tape during tape application, resulting in a tighter, more secure seal.

[0006] Based on the above scheme, further improvements are made as follows: the two ends of the circumferential surfaces where the central cylinder and the adsorption cylinder meet are sealed with sealing rings. This maximizes the sealing performance and minimizes the loss of vacuum suction.

[0007] Based on the above solution, further improvements are made as follows: Annular bosses are provided at both ends of the central cylinder to position the adsorption cylinder axially. This ensures that the central cylinder and the adsorption cylinder will not misalign axially, thereby guaranteeing proper docking between the moving channel and the fixed channel.

[0008] Based on the above solution, the following improvement is made: the diameter of the fixed channel is larger than that of the movable channel. This makes docking easier and minimizes the loss of vacuum suction at the fixed channel, as a larger diameter results in greater resistance.

[0009] Based on the above scheme, a further improvement is made as follows: an arc-shaped groove extending along the direction of rotation is provided at one end where the moving channel connects with the fixed channel. The arc-shaped groove increases the communication time between the moving channel and the fixed channel, thereby enabling seamless connection of adjacent adsorption units during rotation.

[0010] Based on the above scheme, further improvements are made as follows: the aperture of each fixed channel increases progressively from the closer to the mounting frame to the farther away from the mounting frame, so as to make the vacuum suction force of each fixed channel uniform. Because the vacuum suction force will vary with the distance from the mounting frame, the change in the aperture of the fixed channel can compensate for the loss of vacuum suction force caused by this distance, thereby ensuring that the vacuum suction force of each adsorption unit is as consistent as possible.

[0011] Based on the above solution, further improvements are made as follows: Three pairs of roller suction mechanisms are evenly distributed within the rectangular area of ​​the corresponding cardboard box. This allows for a more uniform suction force to be applied to the top flap. Attached Figure Description

[0012] Figure 1 This is a top view schematic diagram of a specific embodiment of an automatic carton packaging device according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the roller suction mechanism; Figure 3 for Figure 2 A magnified view of a section at point A in the middle; In the diagram: 1-Carton, 11-Top cover flap, 2-Conveyor rail, 3-Tape pasting mechanism, 4-Tape, 5-Roll suction mechanism, 51-Mounting frame, 511-Internal channel, 52-Roller, 521-Central cylinder, 5211-Inner cavity, 5212-Fixed channel, 5213-Annular boss, 522-Suction cylinder, 5221-Suction unit, 5222-Suction cup, 5223-Moving channel, 5224-Arc-shaped groove, 53-Sealing ring. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the invention and are not intended to limit the invention; that is, the described embodiments are merely some embodiments of the invention, and not all embodiments. The components of the embodiments of the invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0015] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0016] The features and performance of the present invention will be further described in detail below with reference to embodiments.

[0017] A specific embodiment of the automatic carton packaging equipment of the present invention: as follows Figure 1-3 As shown, the automatic carton packaging equipment includes conveying equipment, carton opening equipment, sealing equipment, and strapping equipment. The sealing equipment includes a conveyor guide rail 2, a carton folding and guiding mechanism, and an adhesive tape pasting mechanism 3. The above structure is existing technology and will not be described in detail.

[0018] The conveyor rail 2 is used to convey the carton 1 and guide and position the carton 1 during the conveying process; the tape pasting mechanism 3 is used to paste tape 4 between the top flaps 11 of the carton 1.

[0019] like Figure 1 As shown, there are 6 roller suction mechanisms 5, which are arranged above the conveying guide rail 2 and corresponding to the two top flaps 11 of the carton 1. Each mechanism includes a mounting frame 51 and rollers 52. The axis of the rollers 52 is horizontally arranged and perpendicular to the moving direction of the carton 1. Each roller 52 includes a central cylinder 521 and suction cylinders 522 rotatably mounted outside the central cylinder 521. The central cylinder 521 is fixedly connected to the mounting frame 51. The mounting frame 51 has an internal channel 511, one end of which is connected to a vacuum pump, and the other end communicates with the inner cavity 5211 of the central cylinder 521. Multiple suction cylinders 522 are spirally distributed on their outer circumferential surface. Each adsorption unit 5221 includes a suction cup 5222 and a movable channel 5223 communicating with the suction cup 5222. The movable channel 5223 is located inside the adsorption cylinder 522 and is arranged radially along the adsorption cylinder 522. A row of fixed channels 5212 is provided at the lower part of the central cylinder 521. Each fixed channel 5212 and the corresponding movable channel 5223 are on the same circle with the axis of the central cylinder 521 as the center, so that each movable channel 5223 in rotation is connected to the corresponding fixed channel 5212 in sequence, thereby using the suction cup 5222 to adsorb the top cover flap 11 upward.

[0020] The two ends of the circumferential surfaces of the central cylinder 521 and the adsorption cylinder 522 that mate with each other are sealed by sealing rings 53. This maximizes the sealing performance and minimizes the loss of vacuum suction. The central cylinder 521 has annular bosses 5213 at both ends for axial positioning of the adsorption cylinder 522. This prevents misalignment between the central cylinder 521 and the adsorption cylinder 522 in the axial direction, ensuring proper docking between the movable channel 5223 and the fixed channel 5212. The diameter of the fixed channel 5212 is larger than that of the movable channel 5223. This facilitates docking and minimizes the loss of vacuum suction at the fixed channel 5212, as a larger diameter results in greater resistance. An arc-shaped groove 5224 extending along the direction of rotation is provided at the end where the movable channel 5223 docks with the fixed channel 5212. The arc-shaped groove 5224 increases the communication time between the movable channel 5223 and the fixed channel 5212, allowing for seamless connection of adjacent adsorption units 5221 during rotation. The aperture of each fixed channel 5212 increases from near to far from the mounting bracket 51 to ensure uniform vacuum suction. Since vacuum suction varies with distance from the mounting bracket 51, the change in aperture of the fixed channels 5212 compensates for this loss of vacuum suction, thus ensuring consistent vacuum suction across all adsorption units 5221. Three pairs of roller suction mechanisms 5 are evenly distributed within the rectangular area corresponding to the cardboard box 1. This allows for a more uniform adsorption force to be applied to the top cover flap 11.

[0021] When the automatic carton packaging equipment is in use, the two top flaps 11 of the carton 1 are already folded when it enters the conveyor rail 2. They remain folded and joined within the conveyor rail 2 due to the upper guide structure. When passing through the area of ​​the roller suction mechanism 5, the suction cups 5222 of the roller suction mechanism 5 are connected to the vacuum pump via the movable channel 5223, the fixed channel 5212, the inner cavity 5211 of the central cylinder 521, and the internal channel 511 of the mounting bracket 51. Only the lower suction cup 5222 can communicate with the fixed, downward-facing channel 5212. Therefore, the suction cups 5222 below the suction cylinder 522 are in a vacuum state, generating suction force to adhere to the top flaps 11 of the carton 1. Under the combined action of multiple suction mechanisms 5, both top cover flaps 11 are suctioned upwards, providing strong support for the subsequent tape application mechanism 3. This ensures sufficient pressure for the tape 4 to adhere tightly to the upper surface of the corresponding top cover flap 11, achieving a tight seal. Furthermore, because the suction cylinder 522 rotates with the movement of the carton 1, the spirally distributed suction units 5221 on its outer circumference rotate downwards one by one, connecting with the corresponding fixed channels 5212 and generating vacuum suction at its suction cups 5222. This ensures that the suction force of the suction cylinder 522 on the top cover flap 11 is nearly continuous, providing strong support for the top cover flap 11 throughout the entire application process. Therefore, this application, through a simple structural design, provides continuous and strong suction support for the moving top cover flap 11, ensuring that the tape application mechanism 3 has a point of application when applying the tape 4, resulting in a tighter press application.

[0022] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be determined by the claims. Similarly, any equivalent structural changes made based on the description and drawings of the present invention shall also be included within the scope of protection of the present invention.

Claims

1. An automatic cardboard box packaging device, comprising: Conveyor rails are used to transport cartons and guide and position them during the carton transport process. Tape application mechanism for applying tape between the flaps of a cardboard box; Its characteristic is that it further includes: The roller suction mechanism, consisting of multiple rollers, is positioned above the conveyor guide rail and corresponds to the two top flaps of the carton. It includes a mounting frame and rollers. The rollers' axis is horizontally positioned and perpendicular to the carton's direction of movement. Each roller comprises a central cylinder and a suction cylinder rotatably mounted outside the central cylinder. The central cylinder is fixedly connected to the mounting frame, which has an internal channel. One end of the internal channel is connected to a vacuum pump, and the other end communicates with the inner cavity of the central cylinder. Multiple suction units are spirally distributed on the outer circumference of the suction cylinder. Each suction unit includes a suction cup and a movable channel communicating with the suction cup. The movable channel is located inside the suction cylinder and arranged radially along the cylinder. A row of fixed channels is located at the lower part of the central cylinder. Each fixed channel and its corresponding movable channel lie on the same circle centered on the axis of the central cylinder, allowing the rotating movable channels to sequentially connect with their corresponding fixed channels, thereby using the suction cups to suction the top flaps upwards.

2. The automatic carton packaging equipment according to claim 1, characterized in that, The two ends of the circumferential surfaces of the central cylinder and the adsorption cylinder that cooperate with each other are sealed by sealing rings.

3. The automatic carton packaging equipment according to claim 1, characterized in that, The central cylinder has annular bosses at both ends to position the adsorption cylinder axially.

4. The automatic carton packaging equipment according to claim 1, characterized in that, The diameter of the fixed channel is larger than that of the moving channel.

5. The automatic carton packaging equipment according to claim 1, characterized in that, An arc-shaped groove extending in the direction of rotation is provided at one end where the moving channel connects with the fixed channel.

6. The automatic carton packaging equipment according to claim 1, characterized in that, The aperture of each fixed channel increases from the closer to the mounting bracket to the farther away from the mounting bracket, so that the vacuum suction of each fixed channel is uniform.

7. The automatic carton packaging equipment according to claim 1, characterized in that, There are three pairs of roller suction mechanisms, evenly distributed within the rectangular area of ​​the corresponding carton.

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