A forming machine and production process for waterproof and moisture-proof carton production

Abstract

This invention relates to the field of molding equipment technology, and provides a molding machine and production process for producing waterproof and moisture-proof cartons. The machine includes an inner tube and an outer tube that are nested together, and a narrow rectangular roller that abuts against the carton seam, bending the adhesive tape on both sides. A baffle is slidably mounted on the inner tube along its axial direction, inserted between the carton lid and located on both sides of the seam. The outer tube has an upper rotating plate and a lower rotating plate extending to the same side and arranged vertically parallel to each other, forming a channel between the upper and lower rotating plates to guide the bent adhesive tape. A groove is formed on the inner tube, and the upper and lower rotating plates slide along the groove on the inner tube to the bent adhesive tape and rotate in cooperation with the baffle. A cylinder drives the outer tube to slide and rotate, receiving the bent adhesive tape and further rotating it, causing the upper and lower rotating plates to form a "7"-shaped structure with the tape, which abuts against the baffle, ensuring the tape completely adheres to the carton lid.

Description

Technical Field

[0001] This invention relates to the field of molding equipment technology, specifically to a molding machine and production process for producing waterproof and moisture-proof cardboard boxes. Background Technology

[0002] In the sealing process of cardboard boxes, tape is needed to seal the seams of the box lid. This is usually done by a carton sealer. The process involves bending the carton lid with a push rod, and then the rollers on the sealer push the tape against the seam of the lid. The resistance of the rollers is used to press the tape and the lid together to achieve a seal.

[0003] However, there are creases pressed between the lid and the side panels. When the rollers press against the lid, they cause the lid to bend inwards. Since the contact surface of the rollers is straight, the tape will be straight while the two lids bend inwards to form a triangular structure. The lids rely on their rebound to adhere to the tape. This method of adhesion results in air bubbles between the tape and the lid. If convex rollers are used, the lid itself has a rebound force. When the convex rollers press the tape, the lid bends inwards. After the tape is applied, the rebound force of the lid will stretch the tape. When the rebound force of the lid is insufficient to fully stretch or tighten the tape, the formed lid may remain bent inwards. This will result in an uneven formed lid, affecting the packaging quality.

[0004] Therefore, we propose a forming machine and production process for the production of waterproof and moisture-proof cardboard boxes. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides a forming machine and production process for producing waterproof and moisture-proof cardboard boxes, which overcomes the shortcomings of the prior art, has a reasonable design and compact structure, and solves the existing problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution:

[0009] A forming machine for producing waterproof and moisture-proof cardboard boxes includes an inner tube and an outer tube that are nested together, and a narrow rectangular roller that abuts against the seam of the cardboard box to bend the tape on both sides. A baffle is slidably provided on the inner tube along its axial direction. The baffle is inserted between the box lid and located on both sides of the seam. An upper rotating plate and a lower rotating plate are provided on the outer tube, extending to the same side and arranged vertically and parallel to each other. A channel is formed between the upper rotating plate and the lower rotating plate to guide the bent tape through. A groove is provided on the inner tube. The upper rotating plate and the lower rotating plate slide along the groove on the inner tube to the bent tape and rotate in cooperation with the baffle.

[0010] Preferably, the groove includes a first groove, a second groove, and a third groove opened on the axial surface of the inner tube. The second groove is disposed between the first groove and the third groove and is connected to both of them. The first groove, the second groove, and the third groove are not on the same straight line.

[0011] Preferably, a sliding rod is installed at the first end of the outer tube, and the sliding rod passes through the outer tube and extends into the tank.

[0012] Preferably, a guide groove is provided axially on the inner tube, and a guide rod is slidably disposed in the guide groove.

[0013] Preferably, the outer tube has a circumferentially formed slider groove that can accommodate the guide rod.

[0014] Preferably, the outer tube has a connecting groove annularly formed at its tail end, and a drive rod is suspended in the connecting groove. The drive rod is connected to the drive unit through a connecting rod.

[0015] Preferably, the inner tube is connected to a connecting plate for fixing it, and the outer tube is provided with an axial sliding groove for accommodating the connecting plate.

[0016] Preferably, it includes the following steps:

[0017] S1 replaces the sealing rollers with narrow-rectangular rollers and aligns them with the seams of the cartons;

[0018] The S2 conveyor rollers drive the carton through the sealer. The narrow-rectangular rollers on the sealer adhere the middle of the tape to the seam of the carton. At this time, the two sides of the tape bend downwards due to gravity.

[0019] S3 cylinder retracts, at which point the sliding rod moves from the first groove to the second groove, the outer tube slides and deflects in the inner tube, driving the upper and lower rotating plates fixed at the tail of the outer tube to slide and rotate, forming a shape that corresponds to the bent tape and is consistent with the length of the tape;

[0020] S4 At the same time, the slider groove on the outer tube controls the guide rod to slide on the guide groove and insert the baffle between the box cover and it is located on both sides of the box cover seam;

[0021] S5 continues to retract the cylinder, the sliding rod deflects further, the upper and lower rotating plates form a "7" shaped structure with the tape, and it abuts against the baffle, so that the tape is completely adhered to the box cover.

[0022] (III) Beneficial Effects

[0023] This invention provides a forming machine and production process for producing waterproof and moisture-proof cardboard boxes. It offers the following advantages:

[0024] 1. The cylinder drives the outer tube to slide and rotate to receive the bent tape and rotate it further, causing the upper and lower rotating plates to form a "7" shaped structure of tape, which is then supported and cooperated with the baffle to make the tape completely adhere to the box cover. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the inner tube of the present invention;

[0028] Figure 4 This is a schematic diagram of the outer tube of the present invention;

[0029] Figure 5 For the present invention Figure 4 A diagram from another perspective;

[0030] Figure 6 This is a schematic diagram showing the contact between the box sealer and the box lid.

[0031] Figure 7 A schematic diagram showing the replacement of the sealing rollers with convex rollers;

[0032] Figure 8 A schematic diagram showing the use of small rollers for the box sealer.

[0033] In the diagram: 1. Inner tube; 11. First groove; 12. Second groove; 13. Third groove; 14. Guide groove; 15. Guide rod; 16. Baffle; 17. Connecting plate; 2. Outer tube; 21. Sliding groove; 22. Connecting groove; 23. Sliding groove; 24. Sliding rod; 25. Drive rod; 26. Upper rotating plate; 27. Lower rotating plate; 3. Carton; 4. Sealing roller; 5. Adhesive tape. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] See attached document Figure 1-8A forming machine for producing waterproof and moisture-proof cartons is provided. This equipment is installed after the carton sealer and includes an inner tube 1 and an outer tube 2 that are nested together. It also includes replacing the rollers of the sealer with narrow-rectangular rollers. These narrow-rectangular rollers abut against the carton seams. The narrow-rectangular rollers connect the middle section of the adhesive tape to the seam, resulting in a small contact area. Due to gravity, the tape bends on both sides, and the rebound force of the carton lid stretches the tape. The formed carton lid is then conveyed to a conveyor roller track with a central space. The roller track provides support to the carton lid, keeping it flat. The machine then processes and shapes the carton lid. A baffle 16 is slidably mounted on the inner tube 1 along its axial direction. When the outer tube 2 slides and rotates on the inner tube 1, a slider groove 21 on the outer tube 2 drives the baffle 16 to slide axially along a guide groove 14. The baffle 16 is inserted between the carton lids and located on both sides of the seam, providing support. The outer tube 2 has a section extending to the same side and arranged vertically parallel to each other. The upper rotating plate 26 and the lower rotating plate 27 form a channel between them to guide the bending tape. The lower rotating plate 27 is longer than the upper rotating plate 26. When the lower rotating plate 27 rotates, the bent tape between the upper rotating plate 26 and the lower rotating plate 27 will form a "7" shape structure, which can squeeze and flatten the tape. This bonding method not only makes the box lid flat after molding, but also avoids the phenomenon of air bubbles between the tape and the box lid. The inner tube 1 is provided with grooves, including a first groove 11, a second groove 12, and a third groove 13 opened on the axial surface of the inner tube 1. The second groove 12 is set between the first groove 11 and the third groove 13 and is connected to both of them. The first groove 11, the second groove 12, and the third groove 13 are not on the same straight line. The upper rotating plate 26 and the lower rotating plate 27 slide along the grooves on the inner tube 1 to the bent tape and rotate with the baffle 16.

[0036] In this embodiment, a sliding rod 24 is installed at the first end of the outer tube 2. The end of the outer tube 2 that is close to the tank is the first end, and the end of the outer tube 2 that is far away from the tank is the tail end. The sliding rod 24 passes through the outer tube 2 and extends into the tank, so that the outer tube 2 slides and rotates along the direction of the tank.

[0037] In this embodiment, an axial guide groove 14 is provided on the inner tube 1, and a strip groove corresponding to the guide groove 14 is also provided on the inner wall of the inner tube 1. A guide rod 15 is slidably arranged in the guide groove 14, with one end of the guide rod 15 slidingly engaging with the guide groove 14 and the other end slidingly engaging with the strip groove.

[0038] In this embodiment, the outer tube 2 is provided with a slider groove 21 that can accommodate the guide rod 15. The slider groove 21 is semi-circular and its length is adapted to the turning angle of the outer tube 2. During the sliding process of the outer tube 2 on the inner tube 1, it can drive the guide rod 15 to slide in the guide groove 14. Since the length of the slider groove 21 is adapted to the turning angle of the outer tube 2, even if the outer tube 2 rotates, it will not affect the sliding of the guide rod 15.

[0039] In this embodiment, the outer tube 2 has a connecting groove 22 annularly opened at its tail end. A drive rod 25 is suspended in the connecting groove 22. The drive rod 25 is connected to the drive unit through a connecting rod. The connecting rod is U-shaped, and its ends are respectively connected to two drive rods 25. The connecting rod is driven by a cylinder to make the outer tube 2 slide synchronously on the inner tube 1. A connecting plate 17 for fixing it is connected to the inner tube 1. A sliding groove 23 for accommodating the connecting plate 17 is axially opened on the outer tube 2.

[0040] This embodiment includes the following steps:

[0041] S1 replaces the sealing rollers with narrow-rectangular rollers and aligns them with the seams of the cartons;

[0042] The S2 conveyor rollers drive the carton through the sealer. The narrow-rectangular rollers on the sealer adhere the middle of the tape to the seam of the carton. At this time, the two sides of the tape bend downwards due to gravity.

[0043] S3 cylinder retracts, at which time the sliding rod 24 moves from the first groove 11 to the second groove 12, the outer tube 2 slides and deflects in the inner tube 1, driving the upper rotating plate 26 and the lower rotating plate 27 fixed at the tail of the outer tube 2 to slide and rotate, forming a shape that corresponds to the bent tape and is consistent with the length of the tape.

[0044] S4 At the same time, the slider groove 21 on the outer tube 2 controls the guide rod 15 to slide on the guide groove 14 and inserts the baffle 16 between the box cover and is located on both sides of the box cover seam;

[0045] S5 continues to retract the cylinder, the sliding rod 24 deflects further, the upper rotating plate 26 and the lower rotating plate 27 form the tape into a "7" shape structure, and it abuts against the baffle 16, so that the tape is completely attached to the box cover.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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.

[0047] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A forming machine for producing waterproof and moisture-proof cardboard boxes, comprising an inner tube (1) and an outer tube (2) that are nested together, characterized in that: It also includes a narrow rectangular roller (4) that abuts against the seam of the carton, causing the tape to bend on both sides; A baffle (16) is slidably provided on the inner tube (1) along its axial direction. The baffle (16) is inserted between the box cover and located on both sides of the joint. The outer tube (2) is provided with an upper rotating plate (26) and a lower rotating plate (27) extending to the same side and arranged in parallel vertically. A channel is formed between the upper rotating plate (26) and the lower rotating plate (27) to guide the bent tape through. A groove is provided on the inner tube (1). The upper rotating plate (26) and the lower rotating plate (27) slide along the groove on the inner tube (1) to the bent tape and rotate in cooperation with the baffle (16). The groove includes a first groove (11), a second groove (12), and a third groove (13) opened on the axial surface of the inner tube (1). The second groove (12) is located between the first groove (11) and the third groove (13) and is connected to both of them respectively. The first groove (11), the second groove (12), and the third groove (13) are not on the same straight line. A sliding rod (24) is installed at the first end of the outer tube (2), and the sliding rod (24) passes through the outer tube (2) and extends into the tank; The inner tube (1) is axially provided with a guide groove (14), and a guide rod (15) is slidably provided in the guide groove (14). The guide rod (15) is controlled to slide on the guide groove (14) so ​​that the baffle (16) can be inserted between the box cover. The outer tube (2) has a circumferentially formed slider groove (21) that can accommodate the guide rod (15); The outer tube (2) has a connecting groove (22) annularly opened at the tail end. A drive rod (25) is suspended in the connecting groove (22). The drive rod (25) is connected to the drive unit through a connecting rod.

2. The forming machine for producing waterproof and moisture-proof cardboard boxes as described in claim 1, characterized in that: The inner tube (1) is connected to a connecting plate (17) for fixing it, and the outer tube (2) is provided with a sliding groove (23) axially to accommodate the connecting plate (17).

3. A carton production process using a carton forming machine according to any one of claims 1-2, wherein, The connecting rod is driven by a cylinder, characterized by the following steps: S1 replaces the sealing roller with a narrow-rectangular roller and aligns the narrow-rectangular roller of the sealing machine with the seam of the carton. The S2 conveyor rollers drive the carton through the sealer. The narrow-rectangular rollers on the sealer adhere the middle of the tape to the seam of the carton. At this time, the two sides of the tape bend downwards due to gravity. S3 cylinder retracts, at which time the sliding rod (24) moves from the first groove (11) to the second groove (12), the outer tube (2) slides and deflects in the inner tube (1), driving the upper rotating plate (26) and lower rotating plate (27) fixed at the tail of the outer tube (2) to slide and rotate, forming a shape that corresponds to the bent tape and is consistent with the length of the tape; S4 At the same time, the slider groove (21) on the outer tube (2) controls the guide rod (15) to slide on the guide groove (14) and insert the baffle (16) between the box cover and on both sides of the box cover seam; S5 continues to retract the cylinder, the sliding rod (24) deflects further, the upper rotating plate (26) and the lower rotating plate (27) form the tape into a "7" shape structure, and it abuts against the baffle (16) to make the tape completely adhere to the box cover.

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