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CN-121990220-A - Box folding device and box packaging production line

CN121990220ACN 121990220 ACN121990220 ACN 121990220ACN-121990220-A

Abstract

The invention provides a box folding device and a box packaging production line, which are used for folding a cuboid carton, wherein an opening of the carton comprises two opposite first cover plates and two opposite second cover plates, the box folding device comprises a conveying unit and a spreading unit, the conveying unit is used for conveying the carton, the spreading unit comprises a standby working position and a spreading working position, when the spreading unit is located in the spreading working position, the two second cover plates can be spread to a preset position, the spreading unit is located in the standby working position and does not affect the folding of the two second cover plates, the first plate folding unit and the second plate folding unit are folded, the control module is configured to enable the first plate folding unit to work when the spreading unit moves to the spreading working position, and enable the second plate folding unit to work when the spreading unit moves to the standby working position, so that the technical problem that the second cover plates of the box in the prior art adversely affect the folding of the first cover plates can be solved.

Inventors

  • ZHANG BAOQUAN
  • WANG XIAOBIN
  • QIU XIONGSHENG
  • LI YONGMIN

Assignees

  • 珠海格力电器股份有限公司

Dates

Publication Date
20260508
Application Date
20260225

Claims (11)

  1. 1. A box folding device for folding a carton (1) of cuboid shape, the opening of the carton (1) comprising two first cover plates (2) opposite and two second cover plates (3) opposite, characterized in that the box folding device comprises: -a conveying unit (701) for conveying the cartons (1); The expanding unit (4) comprises a standby working position and an expanding working position, the expanding unit (4) can expand the two second cover plates (3) to a preset position when being positioned in the expanding working position, and the expanding unit (4) does not influence the folding of the two second cover plates (3) when being positioned in the standby working position; a first plate unit (5) and a second plate unit (6); The control module is configured to enable the folded first plate unit (5) to work when the expanding unit (4) moves to the expanding working position, and enable the folded second plate unit (6) to work when the expanding unit (4) moves to the standby working position.
  2. 2. The box folding device according to claim 1, wherein the opening unit (4) comprises an opening driving source, a second screw rod (402) and two guide blocks (403), the two guide blocks (403) are arranged on the second screw rod (402) in a vertically movable mode, the opening driving source can drive the two guide blocks (403) to move along the second screw rod (402) to be close to or far away from each other, and the two guide blocks (403) are used for directly contacting the two second cover plates (3) of the paper box (1).
  3. 3. The folding device of the box body according to claim 1, wherein the movement direction of the paper box (1) is a first direction, and the direction opposite to the first direction is a second direction, one of the two first cover plates (2) facing the first direction is a front cover plate (201) and the other is a rear cover plate (202); The folding first plate unit (5) comprises a pressing plate (501) and a rotating part (503), the pressing plate (501) is provided with a pressing edge which faces downwards, the pressing edge extends along the movement direction of the paper box (1), the rotating part (503) comprises a standby working state and a folding working state, when the rotating part (503) is located in the standby working state, the rotating part (503) is completely located above the paper box (1), when the rotating part (503) is located in the folding working state, the rotating part (503) rotates to fold the rear cover plate (202), and the paper box (1) moves towards the first direction to enable the pressing edge to press the front cover plate (201) and press the rear cover plate (202).
  4. 4. A box folding device according to claim 3, characterized in that the end of the press edge facing the second direction is provided with a guiding edge (502), which guiding edge (502) extends gradually upwards from the first direction to the second direction.
  5. 5. A box folding device according to claim 3, wherein the press edge is linear, and an angle formed between the first cover plate (2) and the press edge is 30 ° or more and 45 ° or less when the press edge completely presses the first cover plate (2).
  6. 6. The box folding device according to claim 1, characterized in that the folding second plate unit (6) comprises a left compression bar (601) and a right compression bar (602) extending along the movement direction of the carton (1), the left compression bar (601) is connected with a left rotation bar (605) via a left connecting arm (603), the right compression bar (602) is connected with a right rotation bar (606) via a right connecting arm (604), and the left rotation bar (605) and the right rotation bar (606) can rotate simultaneously and in opposite directions.
  7. 7. The box folding device according to claim 1, wherein the conveying unit (701) comprises a centering guide assembly, the centering guide assembly comprises a left guide piece (702) and a right guide piece (703) which are respectively arranged on two sides of the carton (1), the centering guide assembly further comprises a first screw rod (704), left threads and right threads are respectively arranged at two ends of the first screw rod (704), the rotation directions of the left threads and the right threads are opposite, a left nut (707) is arranged on the left threads, a right nut (708) is arranged on the right threads, the left nut (707) is connected with the left guide piece (702), and the right nut (708) is connected with the right guide piece (703).
  8. 8. The folding device of claim 7, wherein the conveying unit (701) comprises a roller line (706), the roller line (706) comprises a plurality of rollers arranged side by side, a space is formed between at least two adjacent rollers, the left guide member (702) and the right guide member (703) are arranged above the roller line (706), the left nut (707) and the right nut (708) are arranged below the roller line (706), the left guide member (702) is connected with the left nut (707) through a left connecting rod (709), the right guide member (703) is connected with the right nut (708) through a right connecting rod (710), and the left connecting rod (709) and the right connecting rod (710) are arranged in the space.
  9. 9. The box folding device according to claim 1, characterized in that the box folding device further comprises a frame (8), the frame (8) is provided with a lifting unit, and the opening unit (4), the folding first plate unit (5) and the folding second plate unit (6) are all arranged on the lifting unit.
  10. 10. The box body folding device according to claim 9, wherein the opening unit (4) is arranged on the lifting unit through an electric cylinder (801), and the electric cylinder (801) can drive the opening unit (4) to move up and down.
  11. 11. A packaging line comprising a folding device according to any one of claims 1 to 10.

Description

Box folding device and box packaging production line Technical Field The invention belongs to the technical field of box folding, and particularly relates to a box folding device and a box packaging production line. Background In the field of production and manufacturing of large household electrical appliances such as air conditioners, carton packaging is used as a key process before product delivery, the automation degree of the carton packaging directly influences production efficiency and cost control, household electrical appliances such as air conditioners are large in size and heavy in weight, and strict quality requirements are provided for folding quality and sealing appearance, so that the automation scheme design and realization of the process are very important for cost reduction, synergy and quality standardization control in the production process of the products. In the existing box sealing process, a large amount of manual operation is still relied on, and workers need to manually fold all cover plates of the paper box one by one in place in advance to perform box sealing operation of the adhesive tape. On the one hand, the efficiency of manual operation is lower, the labor intensity is high, the operation requirement in a large-scale and high-beat production mode is difficult to ensure, on the other hand, the manual operation often has a plurality of uncontrollable factors, the consistency and the accuracy of folding operation are difficult to ensure, the problems of folding in place, folding cover position or angle deviation and the like possibly occur, and the box sealing quality is influenced. When the existing box body is folded, the first edge is folded first and then the second edge is folded, but when the first edge is folded, the first edge can be blocked by the second edge and cannot be folded in place, the first cover plate is bent, the box sealing of the final box body is seriously affected, and the protection of articles in the box body is affected. How to avoid the adverse effect of the second cover plate of the box body on the folding of the first cover plate is a technical problem which needs to be solved at present. Disclosure of Invention Therefore, the invention provides a box folding device and a box packaging production line, which can solve the technical problem of adverse effect on the folding of a first cover plate caused by a second cover plate of a box in the prior art. In one aspect, the present invention provides a box folding device for folding a rectangular carton, where an opening of the carton includes two opposite first cover plates and two opposite second cover plates, and the box folding device includes: a conveying unit for conveying the cartons; The expanding unit comprises a standby working position and an expanding working position, the expanding unit can expand the two second cover plates to a preset position when positioned in the expanding working position, and the expanding unit does not influence the folding of the two second cover plates when positioned in the standby working position; folding the first plate unit and the second plate unit; the control module is configured to enable the folded first plate unit to work when the expanding unit moves to the expanding working position, and enable the folded second plate unit to work when the expanding unit moves to the standby working position. In some embodiments, the expanding unit comprises an expanding driving source, a second screw rod and two guide blocks, wherein the two guide blocks are arranged on the second screw rod in an up-down movable mode, the expanding driving source can drive the two guide blocks to move along the second screw rod to approach or separate from each other, and the two guide blocks are used for directly contacting the two second cover plates of the paper box. In some embodiments, the direction of movement of the carton is a first direction and the direction opposite the first direction is a second direction; one of the two first cover plates facing the first direction is a front cover plate, and the other one is a rear cover plate; The folding first plate unit comprises a pressing plate and a rotating part, wherein the pressing plate is provided with a pressing edge which faces downwards, the pressing edge extends along the movement direction of the paper box, the rotating part comprises a standby working state and a folding working state, when the rotating part is in the standby working state, the rotating part is completely located above the paper box, when the rotating part is in the folding working state, the rotating part rotates to fold the rear cover plate, and when the paper box moves towards the first direction, the pressing edge can press the front cover plate, the rear cover plate is pressed. In some embodiments, a guide edge is disposed at an end of the pressing edge facing the second direction, and the guide edge extends gradually upwards from the first dire