Card folding and packaging machine suitable for wide articles

Abstract

The utility model discloses a card folding packing machine suitable for wider articles, which comprises a working table top, a vertical paper card stacking mechanism, a paper card conveying mechanism and a paper card folding mechanism, the paper card conveying mechanism comprises a rotating arm and a negative pressure sucker group, the tail end of the rotating arm is rotatably connected with the working table top, the negative pressure sucker group is rotatably connected with the front end of the rotating arm, and the paper card folding mechanism is arranged on the working table top. Meanwhile, a negative pressure air source is connected; the paper card folding mechanism comprises at least one pressing roller, and the pressing roller is provided with an elastic surface and is installed on a rotating shaft rotationally connected with the working table top so that the pressing roller can be close to or away from the working table top. The utility model is suitable for wider articles; and meanwhile, the card folding operation is completed by skillfully utilizing the soft characteristic of the paper card.

Description

Technical Field

[0001] This utility model belongs to the field of packaging machinery technology, and in particular relates to a card folding packaging machine, especially a card folding packaging machine suitable for wider items. Background Technology

[0002] A card folding and labeling machine is a type of packaging machinery, typically used in conjunction with a glue gun to form a card folding and labeling machine. It is commonly used for products such as towels, socks, and gloves. The basic process involves taking a printed paper card with a certain thickness and rigidity as the packaging material, folding it at a predetermined position to form a U-shape, then inserting the item to be packaged into the opening of the U-shape, and finally using a glue gun to insert glue needles to secure the two ends of the U-shape to the packaged item. Automated card folding and labeling machines primarily automate the step of folding the paper card into a U-shape.

[0003] CN214649625U discloses an automatic card feeding, folding, and labeling machine, including a frame, an electrical control box at the bottom of the frame, and a table panel at the top of the frame. The left side of the table panel has a card storage module, and the right side has an opening area. A translational slide rail module is installed below the opening area. A card folding mechanism is installed on the translational slide rail module. A gantry frame is located along the rear edge of the table panel, and a card suction mechanism and a labeling mechanism are fixed on the gantry frame. The card suction mechanism includes a horizontal slide rail module with a vertical cylinder connected to a suction cup fixing block, which also fixes a suction cup. The labeling mechanism is fixed to the gantry frame above the opening area of ​​the table panel. During operation, the card is fed to the top plate of the card folding mechanism via the horizontal slide rail module. At this time, the card folding mechanism fixes and folds the card using two "U"-shaped pressure arms and a forward-pushing folding pressure plate.

[0004] CN216333304U discloses a card folding mechanism for a card issuing machine used in packaging machines, including a frame, a turntable structure, and a card folding station. Both the turntable structure and the card folding station are mounted on the frame. The turntable structure is used to move the card to be folded to the card folding station and to remove the folded card from the card folding station. The turntable structure is equipped with a plurality of suction nozzle assemblies that are evenly distributed circumferentially and used to pick up the card. The card folding station includes a pressing structure and a card folding structure. The pressing structure is used to press the card onto the suction nozzle assembly located at the card folding station, and the card folding structure is used to fold the card located at the card folding station. The card folding structure includes a second driving member and a top block. The second driving member is fixed on the frame, and the top block is fixed on the driving end of the second driving member. The second driving member is used to drive the top block to move closer to or away from the card located at the card folding station. The top block is used to squeeze the outer edge of the card located at the card folding station. The inner wall of the top block is provided with a limiting groove for the outer edge of the card to be inserted. With this card folding structure, when the first driving member drives the top block to move towards the card, the outer edge of the card can first be inserted into the limiting groove. When the first driving member continues to drive the top block to move towards the card, the card can be bent.

[0005] The applicant has also applied for a utility model patent for "A Card Folding and Labeling Machine", publication number CN219172911U, which includes a worktable, a conveying mechanism and a folding mechanism on the worktable, the conveying mechanism sending single paper cards to the folding mechanism for folding; the worktable has an elongated hole, above which is installed a folding knife that can move up and down, the lowest position of the folding knife being lower than the worktable; below the elongated hole are a card holder, a card holder base and a card holder transmission mechanism, the card holder has an upward-opening gate-shaped elongated slot, and is installed on the card holder base through the card holder transmission mechanism, the card holder transmission mechanism driving the card holder to move linearly, moving it away from or towards the card holder base; the card holder base can also rotate around a pivot under the worktable, the direction of rotation being parallel to the direction of paper card movement.

[0006] The drawback of the existing technology is that the stacking and conveying of paper cards requires a tight arrangement. When the paper cards are soft or wide, it is difficult to arrange them tightly, and they are prone to bending under lateral pressure, making it impossible to complete the folding action. When packaging wider items, such as towels, softer and wider paper cards are generally used, resulting in a relatively high failure rate for the packaging machine. Summary of the Invention

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a card folding and packaging machine suitable for wider items.

[0008] The technical solution adopted by this utility model is as follows: a card-folding packaging machine suitable for wider items, including a worktable, a card stacking mechanism located above the rear of the worktable, and an item conveyor belt in front of the worktable to deliver the items to be packaged to the worktable; characterized in that: the card stacking mechanism is vertical; it also includes a card conveying mechanism and a card folding mechanism, the card conveying mechanism including a rotating arm and a negative pressure suction cup assembly, the end of the rotating arm being rotatably connected to the worktable, and the negative pressure suction cup assembly being rotatably connected to the front end of the rotating arm, and simultaneously connected to a negative pressure air source; the card conveying mechanism is connected to the same... The step belt drive consists of a first synchronous belt, a first driving synchronous belt pulley, a first driven synchronous belt pulley, a second synchronous belt, a second driving synchronous belt pulley, and a second driven synchronous belt pulley. The first driven synchronous belt pulley and the second driving synchronous belt pulley are coaxially fixed at the end of the rotating arm. The second driven synchronous belt pulley is fixedly connected to the negative pressure suction cup assembly. The first driving synchronous belt pulley is connected to a motor as a power source, which drives the first driven synchronous belt pulley to rotate via the first synchronous belt. The second driving synchronous belt pulley then drives the second driven synchronous belt pulley to rotate via the second synchronous belt, thereby driving the negative pressure suction cup assembly to rotate.

[0009] The paper card folding mechanism includes at least one pressure roller with an elastic surface, which is mounted on a rotating shaft that is rotatably connected to the worktable, so that it can be brought close to or away from the worktable.

[0010] The gear ratio between the second active synchronous pulley and the second driven synchronous pulley is 2:1; thus, when the first synchronous belt drives the rotating arm to rotate 90°, the second synchronous belt drives the negative pressure suction cup assembly to rotate 180° in the opposite direction.

[0011] The negative pressure suction cup assembly also includes a baffle, which is perpendicular to the negative pressure suction cup, that is, perpendicular to the paper card in the extended state; the baffle is located above or behind the negative pressure suction cup.

[0012] Furthermore, the workbench surface is equipped with ventilation openings that can generate negative pressure.

[0013] A conveyor belt is provided on the workbench, and the ventilation openings create a negative pressure area on the conveyor belt.

[0014] The paper card folding mechanism includes two parallel pressure rollers that are mounted on the same set of rotating shafts and move in parallel.

[0015] In this invention, the direction in which the items to be packaged enter the workbench is considered the front, and the opposite direction is considered the rear.

[0016] The paper card stacking mechanism of this invention is vertical. To prevent the stacked paper cards from falling, the angle with the worktable should be slightly greater than 90°, but it can be approximated as perpendicular to the worktable. During operation, the first synchronous belt is used to rotate the arm of the paper card conveying mechanism to a position perpendicular to the worktable, bringing the negative pressure suction cup assembly close to the paper card and using negative pressure to pick up the first paper card. Then, the first synchronous belt is used to rotate the arm of the paper card conveying mechanism to a position parallel to the worktable. At this time, the negative pressure suction cup assembly rotates 180° in the opposite direction, that is, 90° relative to the worktable, also reaching a parallel and close position to the worktable. During this process, part of the paper card is sucked by the negative pressure suction cups, quickly changing from a vertical position to a flat position on the worktable, while the other part retains an angle with the horizontal plane during movement. This is due to the relatively soft nature of the paper card itself. Simultaneously, the presence of baffles in the negative pressure suction cup assembly exacerbates this phenomenon, causing the front and rear parts of the paper card to present different angles, which is beneficial for subsequent folding.

[0017] Then, the negative pressure suction cup assembly releases the negative pressure, and the card delivery mechanism leaves the worktable, ready for the next cycle. The card remains on the worktable and is held in place by the negative pressure. The conveyor belt delivers the items to be packaged to the worktable, pressing down on the portion of the card that is adhered to the worktable and held in place. Simultaneously, the pressure roller of the card folding mechanism is driven forward by the rotating shaft, pushing the portion of the card not adhered to the worktable forward and downward to fold over the packaged items, thus completing the card folding action. Finally, the card and the items covered by the folded card are conveyed to the rear via the conveyor belt on the worktable for the next step, such as labeling.

[0018] The space above the workbench of this invention is entirely occupied by the stacking and conveying of paper cards, without any interference with the movement of other components. It is suitable for wider paper cards, that is, for wider items. At the same time, it cleverly utilizes the relatively soft nature of paper cards to complete the card folding operation. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the initial state of this utility model.

[0020] Figure 2 This is a structural schematic diagram of the second state of this utility model.

[0021] Figure 3 This is a structural schematic diagram of the third state of this utility model.

[0022] Figure 4 yes Figure 3 Simplified diagram.

[0023] Figure 5 This is a simplified diagram of the fourth state. Detailed Implementation

[0024] See Figure 1 This embodiment includes a workbench 1 and a material conveying platform 2. The material conveying platform has a conveyor belt that is higher than the workbench. When the material to be packaged is delivered close to the workbench 1, the material clamping mechanism 21 clamps the material and delivers it to the designated position. The material clamping mechanism 21 can move forward and backward relative to the workbench and has a clamping arm that can move up and down to complete the clamping and conveying of the material.

[0025] The workbench 1 has a conveyor belt 11 with several ventilation openings 12. A negative pressure device is provided under the workbench, which also has ventilation openings (not shown in the figure). When the ventilation openings of the negative pressure device overlap with the ventilation openings 12 of the conveyor belt, a negative pressure area is generated above the conveyor belt, which can absorb items or paper cards placed on the conveyor belt.

[0026] A paper card stacking mechanism 3 is provided at the rear of the workbench, which is set basically perpendicular to the workbench; there are several paper cards 33 on it, which are stacked vertically.

[0027] In front of the card stacking mechanism is a card conveying mechanism, including a rotating arm 40 and a negative pressure suction cup assembly 41. The lower end of the rotating arm is rotatably connected to the worktable, and the negative pressure suction cup assembly is rotatably connected to the upper end of the rotating arm, and is also connected to a negative pressure air source (not shown in the figure). The driving device of the card conveying mechanism includes a first driving synchronous pulley 44, a first synchronous belt 45, a first driven synchronous pulley 46, a second driving synchronous pulley 47, a second synchronous belt 48, and a second driven synchronous pulley 49. The first driven synchronous pulley 46 and the second driving synchronous pulley 47 are coaxially fixed at the lower end of the rotating arm, and the second driven synchronous pulley 49 is fixedly connected to the negative pressure suction cup assembly 41. The negative pressure suction cup assembly 41 also includes a baffle 42, which is perpendicular to the negative pressure suction cups. Figure 1 In the state shown, the baffle 42 is basically horizontal, perpendicular to the paper card 33, and located above the negative pressure suction cup.

[0028] The first active synchronous pulley 44 is connected to a motor as a power source, which drives the first driven synchronous pulley 46 to rotate via the first synchronous belt 45. Then, the second active synchronous pulley 47 drives the second driven synchronous pulley 49 to rotate via the second synchronous belt 48, thereby driving the negative pressure suction cup assembly 41 to rotate. The gear ratio between the second active synchronous pulley 47 and the second driven synchronous pulley 49 is 2:1. Thus, when the rotating arm 40 rotates 90° clockwise, the negative pressure suction cup assembly 41 rotates 180° counterclockwise relative to the rotating arm, that is, the negative pressure suction cup assembly 41 rotates 90° counterclockwise relative to the worktable.

[0029] In front of the paper card conveying mechanism is a paper card folding mechanism, which includes two parallel pressure rollers 51 and 52. The pressure rollers have elastic surfaces and are mounted on a rotating shaft 50 that is rotatably connected to the worktable. They swing as the rotating shaft 50 rotates, thus allowing them to come close to or move away from the worktable.

[0030] See Figure 2 At this time, with the negative pressure air source turned on, the negative pressure suction cup assembly 41 adsorbs the first paper card 33; then, driven by the two sets of synchronous belts mentioned above, the rotating arm 40 rotates clockwise by an angle, and the negative pressure suction cup assembly 41 rotates counterclockwise by an angle, presenting the state shown in the figure.

[0031] See Figure 3 , Figure 4 At this point, the rotating arm 40 has rotated 90° clockwise, making it parallel to the worktable surface. The negative pressure suction cup assembly 41 rotates counterclockwise to be perpendicular to the worktable surface. The portion of the paper card 33 held by the negative pressure suction cup 43 is also horizontal and adheres to the worktable surface. The portion of the paper card 33 not held by the negative pressure suction cup 43 is blocked by the pressure roller 51 and the baffle 42, forming a certain angle with the worktable surface. At this time, the vent 12 generates negative pressure, adsorbing the paper card. Meanwhile, the air source of the negative pressure suction cup 43 is turned off, allowing the negative pressure suction cup assembly to detach from the paper card.

[0032] See Figure 5 The rotating arm 40 and the negative pressure suction cup assembly 41 rotate in opposite directions, returning to the starting position. Figure 1 At the indicated position, prepare for the next operation; the pressure roller 51 pushes the paper card 33 forward under the action of the rotating shaft, so that the folding card 33 is folded. Of course, at this time, the item to be packaged (not shown in the figure) is already placed on the folded part of the paper card, so that the folded paper card covers its top and bottom sides, waiting for the conveyor belt 11 to send it into the next process.

Claims

1. A card-folding packaging machine suitable for wider items, comprising a worktable, a card stacking mechanism located above and behind the worktable, and a conveyor belt in front of the worktable to deliver the items to be packaged to the worktable; characterized in that: The paper card stacking mechanism is vertical; it also includes a paper card conveying mechanism and a paper card folding mechanism. The paper card conveying mechanism includes a rotating arm and a negative pressure suction cup assembly. The end of the rotating arm is rotatably connected to the worktable, and the negative pressure suction cup assembly is rotatably connected to the front end of the rotating arm, and is also connected to a negative pressure air source. The paper card conveying mechanism is driven by a synchronous belt, consisting of a first synchronous belt, a first active synchronous belt pulley, a first driven synchronous belt pulley, a second synchronous belt, a second active synchronous belt pulley, and a second driven synchronous belt pulley. The first driven synchronous belt pulley and the second active synchronous belt pulley are coaxially fixed at the end of the rotating arm, and the second driven synchronous belt pulley is fixedly connected to the negative pressure suction cup assembly. The first active synchronous belt pulley is connected to a motor as a power source, which drives the first driven synchronous belt pulley to rotate through the first synchronous belt, and then drives the second driven synchronous belt pulley to rotate through the second active synchronous belt, thereby driving the negative pressure suction cup assembly to rotate. The paper card folding mechanism includes at least one pressure roller with an elastic surface, which is mounted on a rotating shaft that is rotatably connected to the worktable, so that it can be brought close to or away from the worktable.

2. The card-folding packaging machine suitable for wider items as described in claim 1, characterized in that: The gear ratio between the second active synchronous pulley and the second driven synchronous pulley is 2:1; thus, when the first synchronous belt drives the rotating arm to rotate 90°, the second synchronous belt drives the negative pressure suction cup assembly to rotate 180° in the opposite direction.

3. The card-folding packaging machine suitable for wider items as described in claim 1 or 2, characterized in that: The negative pressure suction cup assembly also includes a baffle, which is perpendicular to the negative pressure suction cup, that is, perpendicular to the paper card in the extended state; the baffle is located above or behind the negative pressure suction cup.

4. The card-folding packaging machine suitable for wider items as described in claim 1 or 2, characterized in that: The workbench surface is equipped with ventilation openings that can generate negative pressure.

5. The card-folding packaging machine suitable for wider items as described in claim 4, characterized in that: A conveyor belt is provided on the workbench, and the ventilation openings create a negative pressure area on the conveyor belt.

6. The card-folding packaging machine suitable for wider items as described in claim 1 or 2, characterized in that: The paper card folding mechanism includes two parallel pressure rollers that are mounted on the same set of rotating shafts and move in parallel.

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