A mechanism for sucking up paper and a device for loading paper into a packing box

Abstract

The utility model discloses a kind of paper pad suction mechanism, including rack, the paper pad placement area that can place whole stack paper pad is equipped on rack, suction pad support is equipped on paper pad placement area top, suction pad support is equipped with suction pad, suction pad support is driven by first drive mechanism and moves up and down;Two inclined or arc-shaped backing plates are equipped on the opposite sides of paper pad placement area, and the front and rear of whole stack paper pad are respectively supported by two inclined or arc-shaped backing plates, so that the front and rear of whole stack paper pad are upturned, while the middle of whole stack paper pad is supported on the paper pad placement area, and suction pad support is driven to suction the uppermost paper pad of whole stack paper pad after moving down in place.Further, distance detection sensor is also equipped on suction pad support, and the suction pad is non-contact vacuum suction pad.The utility model can effectively prevent suctioning multiple paper pads at a time, avoid waste, meet the process requirement of paper pad suction.The utility model also discloses a kind of device for loading paper pad into packaging box, comprising the above-mentioned paper pad suction mechanism.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment manufacturing technology, and in particular to a paper suction mechanism and a device for loading paper into a packaging box. Background Technology

[0002] When packing canned goods and other items into a box, it is often necessary to place padding paper at the bottom of the box to better protect the items. After the items are packed into the box, padding paper is placed on top of the items before the box is folded, sealed, and packaged.

[0003] The traditional method of filling packing boxes with packing paper involves manually inserting the packing paper into the packaging boxes. However, manual packing of packing paper is labor-intensive, inefficient, and has high packaging costs.

[0004] Therefore, people began to design packaging equipment to replace manual operation; however, because linerboards such as kraft paper are highly breathable, suction cups often pull out multiple sheets of linerboard when used to pick them up. This results in waste and does not meet the process requirements for inserting linerboards into packaging boxes. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a paper suction mechanism that can effectively prevent multiple sheets of paper from being sucked up at one time, avoid waste, and meet the process requirements for paper suction.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a paper suction mechanism, including a frame, a paper placement area for placing a stack of paper on the frame, a suction cup bracket on the paper placement area, a suction cup mounted on the suction cup bracket, and the suction cup bracket being driven up and down by a first driving mechanism; inclined or arc-shaped pads are provided on opposite sides of the paper placement area, the two inclined or arc-shaped pads respectively supporting the front and rear of the stack of paper, causing the front and rear of the stack of paper to tilt upwards, while the middle of the stack of paper is supported on the paper placement area, and the suction cup bracket drives the suction cup to move downwards into position to suck up the topmost paper of the stack of paper.

[0007] Further improvements include a first driving mechanism comprising a first cylinder and a distance detection sensor mounted on the suction cup bracket. The distance detection sensor is electrically connected to a controller. The suction cup is a non-contact vacuum suction cup. During the downward movement of the suction cup bracket, after the distance detection sensor detects that the distance between the suction cup and the padding paper has reached a set parameter, the distance detection sensor sends a signal to the controller. The controller then controls the first cylinder to stop operating via a solenoid valve, allowing the suction cup to pick up the padding paper without direct contact. This results in a compact overall structure and lower cost. Furthermore, by using a non-contact method to pick up the padding paper, suction force can be better controlled, preventing the padding paper from sticking together and further preventing the picking up of multiple padding papers at once, thus avoiding waste and better meeting process requirements.

[0008] Further improvements include a horizontally mounted turntable pivotally connected to the frame. The turntable is driven by a second drive mechanism to rotate intermittently or reciprocate intermittently. The upper surface of the turntable has two padding paper placement areas, symmetrically arranged with respect to the central axis of the turntable. Each padding paper placement area has inclined or curved pads on opposite sides. After the padding paper in one area is removed, the turntable rotation allows the padding paper from the other area to enter the working position, reducing preparation time and further improving work efficiency.

[0009] Furthermore, the turntable is connected to multiple vertical limiting rods around the perimeter of each pad paper placement area, and these multiple vertical limiting rods restrict the horizontal movement of the entire stack of pad papers.

[0010] Furthermore, each of the vertical limiting rods is adjustable and its upper end is bent outwards; the distance between the two inclined or arc-shaped pads on opposite sides of the pad placement area is adjustable. This ensures the accurate placement of the entire stack of pads, guarantees reliable suction of the pads by the suction cup, and accommodates pads of different specifications, improving the versatility of the equipment. Simultaneously, the upward tilt of the front and rear of the stack of pads can be adjusted to regulate the tension between the pads, further preventing the suction cup from carrying out multiple pads at once.

[0011] Furthermore, a rotating shaft is fixed to the lower part of the turntable, and the shaft is pivotally connected to the frame. The second drive mechanism includes a second cylinder, a rack, and a gear. The gear is fixed to the rotating shaft, the rack is fixed to the piston rod of the second cylinder, and the housing of the second cylinder is fixed to the frame. The rack and gear mesh with each other and then drive the turntable to rotate back and forth intermittently through the second cylinder. This drive mechanism can reliably drive the turntable to rotate back and forth to switch positions, and it is relatively inexpensive.

[0012] Furthermore, the turntable has a through hole for each padding paper placement area, and two sensor probes are installed under the turntable. Both sensor probes are connected to the controller. Each sensor probe detects whether there is still padding paper in the padding paper placement area through one of the through holes, so that the controller can control the second drive mechanism to drive the turntable to change position in a timely manner.

[0013] The suction mechanism of this invention features inclined or curved pads on both sides of the pad placement area. These two inclined or curved pads support the front and rear of the stack of pads, causing the front and rear of the stack to tilt upwards. The middle of the stack is supported on the pad placement area. The suction cup bracket moves the suction cup downwards to its designated position and then sucks up the top pad of the stack. Because the front and rear of the stack tilt upwards, tension is generated between the pads. This tension overcomes the sticky force that causes the pads to stick together during suction, effectively preventing the suction of multiple pads at once, avoiding waste, and ensuring that only one pad is sucked up at a time, meeting the process requirements for pad suction.

[0014] This utility model also discloses a device for inserting padding paper into a packaging box, which includes a suction mechanism for the padding paper; a first drive mechanism is connected to a slider, and the slider is driven by a third drive mechanism to move back and forth in the horizontal direction.

[0015] A packaging box positioning mechanism is provided on one side of the frame. The packaging box is positioned in a set position with its opening facing upwards by the packaging box positioning mechanism, so that the suction cup can carry the padding paper into the packaging box. This allows the padding paper to be loaded into the packaging box.

[0016] Further improvements include a roller conveyor mechanism on one side of the frame. This mechanism comprises multiple parallel rollers arranged horizontally and at intervals, which rotate in the same direction under the drive of a motor and transmission mechanism. The packaging box positioning mechanism includes two parallel guide rods and a stop. The two parallel guide rods are positioned on the rollers, and the stop, driven by a third cylinder, can move up and down through the gap between adjacent rollers. When the stop moves upward, the stop, the two parallel guide rods, and the multiple rollers position the packaging box. When the stop moves downward to make way, the packaging box can move horizontally under the drive of the multiple rollers and the guidance of the two guide rods. This roller conveyor mechanism allows for continuous operation, further improving production efficiency.

[0017] Furthermore, a first support frame is installed on the side of the roller conveyor mechanism, and a detection sensor is mounted on the first support frame. The detection sensor is located above the roller and is connected to a controller. When the detection sensor detects a package moving along the roller, the controller controls the third cylinder to move, causing a stop block to move upward and block the package. This achieves automatic control operation.

[0018] Preferably, the third drive mechanism includes a fourth cylinder, a second support frame is provided on the upper part of the frame, a guide rail is provided on the second support frame to cooperate with the slider, the housing of the fourth cylinder is fixed to the second support frame, and the piston rod of the fourth cylinder is connected to the slider.

[0019] The device for inserting padding paper into packaging boxes according to this utility model can effectively prevent multiple padding papers from being sucked up at one time due to the aforementioned suction mechanism for padding paper, thus avoiding waste. This allows the equipment to operate automatically, with high reliability, and can better meet the process requirements for inserting padding paper into packaging boxes. Attached Figure Description

[0020] Figure 1 This is a top-view perspective view of the present invention;

[0021] Figure 2 This is a top-view perspective view of the two padding areas of this utility model, where a whole stack of padding paper is placed.

[0022] Figure 3 yes Figure 2 Enlarged view of point A;

[0023] Figure 4 This is a bottom-view perspective view of this utility model. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] Figures 1 to 4 As shown, a paper pad suction mechanism includes a frame 1, a paper pad placement area 2 for placing a stack of paper pads 10 on the frame 1, a suction cup bracket 3 on the paper pad placement area 2, and a suction cup 31 mounted on the suction cup bracket 3. The suction cup bracket 3 is driven up and down by a first drive mechanism. A further improved structure is configured such that a horizontally arranged turntable 4 is pivotally connected to the frame 1. The turntable 4 is driven by a second drive mechanism to rotate intermittently or rotate back and forth intermittently. The upper surface of the turntable 4 has two paper pad placement areas 2. The two paper pad placement areas 2 are symmetrically arranged with respect to the central axis of one turntable 4. Each paper pad placement area 2 has inclined pads 21 on opposite sides. The pads 21 can also be arc-shaped. The two inclined pads 21 support the front and rear of the stack of paper pads 10 respectively, so that the front and rear of the stack of paper pads 10 are tilted upwards, while the middle of the stack of paper pads 10 is supported on the paper pad placement area 2. After the suction cup bracket 3 drives the suction cup 31 to move downwards into place, it picks up the topmost paper pad of the stack of paper pads 10.

[0026] The first driving mechanism includes a first cylinder 32. A distance detection sensor 33 is also mounted on the suction cup bracket 3. The distance detection sensor 33 is electrically connected to a controller (not shown in the figure). The suction cup 31 is a non-contact vacuum suction cup. During the downward movement of the suction cup bracket 3, after the distance detection sensor 33 detects that the distance between the suction cup 31 and the padding paper 10 has reached a set parameter, the distance detection sensor 33 sends a signal to the controller. The controller then controls the first cylinder 32 to stop operating via a solenoid valve 34, allowing the suction cup 31 to pick up the padding paper 10 without directly contacting it. This allows for better control of the suction force and further prevents the suction of multiple padding papers at once, avoiding waste.

[0027] The turntable 4 is connected to multiple vertical limiting rods 41 around each pad paper placement area 2, and the multiple vertical limiting rods 41 restrict the entire stack of pad paper 10 from moving in the horizontal direction.

[0028] Each of the vertical limiting rods 41 is movable and adjustable, and the upper end of each vertical limiting rod 41 is bent outward; the distance between the two inclined pads 21 on opposite sides of the pad paper placement area 2 is adjustable. This is to accommodate pads 10 of different specifications and improve the versatility of the equipment; secondly, it can adjust the degree of upward tilting of the front and rear of the entire stack of pads 10, changing the tension between the pads 10.

[0029] A rotating shaft 42 is fixedly connected to the lower part of the turntable 4. The rotating shaft 42 is pivotally connected to the frame 1. The second drive mechanism includes a second cylinder 43, a rack 44, and a gear 45. The gear 45 can be a cylindrical gear. The gear 45 is fixedly connected to the rotating shaft 42. The rack 44 is fixedly connected to the piston rod of the second cylinder 43. The housing of the second cylinder 43 is fixedly connected to the frame 1. The rack 44 and the gear 45 mesh with each other and then drive the turntable 4 to rotate back and forth intermittently through the second cylinder 43.

[0030] The turntable 4 is provided with a through hole 46 for each pad paper placement area 2. Two sensor probes 47 are installed under the turntable 4. Both sensor probes 47 are connected to the controller. Each sensor probe 47 detects whether there is still pad paper 10 in the pad paper placement area 2 through one of the through holes 46, so that the controller can control the second drive mechanism to drive the turntable 4 to change position in time.

[0031] An apparatus for inserting padding paper into a packaging box includes a paper suction mechanism; a first drive mechanism is connected to a slider 5, that is, the housing of a first cylinder 32 is fixed to the slider 5, and the slider 5 is driven by a third drive mechanism to move back and forth in the horizontal direction; the third drive mechanism includes a fourth cylinder 51, a second support frame 52 is provided on the upper part of the frame 1, a guide rail 53 is provided on the second support frame 52 to cooperate with the slider 5, the housing of the fourth cylinder 51 is fixed to the second support frame 52, and the piston rod of the fourth cylinder 51 is connected to the slider 5.

[0032] A packaging box positioning mechanism 6 is provided on one side of the frame 1. The packaging box 20 is positioned at a set position with its opening facing upward by the packaging box positioning mechanism 6, so that the suction cup 31 can drive the padding paper 10 to be placed inside the packaging box 20.

[0033] A roller conveyor mechanism 7 is also installed on one side of the frame 1. The roller conveyor mechanism 7 includes multiple rollers 71 arranged horizontally and at intervals. The multiple rollers 71 can rotate in the same direction under the drive of a motor and a transmission mechanism. The packaging box positioning mechanism 6 includes two parallel guide rods 61 and a stop block 62. The two parallel guide rods 61 are set on the rollers 71. The stop block 62 is driven by a third cylinder 63 and can move up and down through the gap between two adjacent rollers 71. When the stop block 62 moves upward, the stop block 62, the two parallel guide rods 61 and the multiple rollers 71 position the packaging box 20. When the stop block 62 moves downward to make room, the packaging box 20 can move horizontally under the drive of the multiple rollers 71 and the guidance of the two guide rods 61.

[0034] A first support frame 72 is installed on the side of the conveying mechanism 7 of the roller 71. A detection sensor 73 is installed on the first support frame 72. The detection sensor 73 is located on the roller 71 and is connected to the controller. When the detection sensor 73 senses that a package 20 is moving along the roller 71, the controller controls the third cylinder 63 to move, which drives the stop block 62 to move up and block the package 20.

[0035] Multiple third support frames 74 are fixedly connected to both sides of the conveying mechanism 7 of the roller 71. Each third support frame 74 is equipped with an adjustable support rod 75. Each guide rod 61 is fixedly connected to at least two support rods 75. The spacing between two guide rods 61 can be adjusted by adjusting the position of the multiple support rods 75 to accommodate packaging boxes 20 of different sizes.

[0036] A second set of paper suction mechanism 30 can be installed on the frame 1, and a second packaging box positioning mechanism 6 is provided on one side of the frame 1, so that two types of paper 10 of different specifications can be put into the packaging box 20.

[0037] In this embodiment, the following steps are taken: First, place the stack of padding paper 10 in the two padding paper placement areas 2 on the turntable 4. The padding paper 10 can be made of kraft paper. Then, the packaging box 20 is fed in from the input end of the roller conveyor mechanism 7. The packaging box 20 moves forward under the drive of multiple rollers 71. When the detection sensor 73 detects that a packaging box 20 has been fed in, the controller controls the third cylinder 63 to move, causing the stop block 62 to move up and block one side of the packaging box 20.

[0038] The first cylinder 32 drives the suction cup bracket 3 to move down. After the distance detection sensor 33 detects that the distance between the suction cup 31 and the pad paper 10 reaches the set parameter, the distance detection sensor 33 sends a signal to the controller. The controller controls the first cylinder 32 to stop moving through the solenoid valve 34. Then the suction cup 31 starts to suck air, so that it can pick up the top pad paper 10 of the whole stack of pad paper 10 without directly contacting the pad paper 10. Then the first cylinder 32 drives the suction cup bracket 3 to move up back to its position. At this time, the suction cup 31 picks up a pad paper 10.

[0039] Next, the fourth cylinder 51 drives the slider 5, the first cylinder 32, and the suction cup bracket 3 to move towards the side of the roller conveyor mechanism 7, so that the suction cup bracket 3 is above the packaging box 20. Then, the first cylinder 32 moves to move the suction cup bracket 3 downward, and the suction cup 31 moves a padding paper 10 into the packaging box 20. Then, the suction cup 31 stops sucking air, and the padding paper 10 is removed from the suction cup 31. Then, the first cylinder 32 moves again to move the suction cup bracket 3 upward, and the fourth cylinder 51 moves again to move the slider 5, the first cylinder 32, and the suction cup bracket 3 away from the roller conveyor mechanism 7 to return to their original positions, ready for the next action.

[0040] After the first padding paper 10 is loaded into the packaging box 20, the third cylinder 63 is activated again, causing the stop block 62 to move down and detach from the packaging box 20. Driven by multiple rollers 71, the packaging box 20 continues to move forward and enters the second positioning point to load padding paper of another specification.

[0041] Once all the padding paper 10 in one of the padding paper placement areas 2 has been removed, the sensing probe 47 can detect through the through hole 46 that there is no padding paper 10 in the padding paper placement area 2. Then, the controller controls the second drive mechanism to promptly drive the turntable 4 to change position, allowing another padding paper placement area 2 that has a full stack of padding paper 20 to enter the working position. Meanwhile, the padding paper placement area without padding paper 10 can then put in a full stack of padding paper 10, ensuring continuous operation of the equipment, reducing material preparation time, and improving work efficiency.

[0042] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A sheet pick-up mechanism for a sheeting machine, comprising a frame, characterised in that: The frame is equipped with a padding paper placement area for holding a whole stack of padding paper. A suction cup bracket is provided on the padding paper placement area, and a suction cup is mounted on the suction cup bracket. The suction cup bracket is driven up and down by a first drive mechanism. There are inclined or arc-shaped pads on opposite sides of the padding paper placement area. The two inclined or arc-shaped pads support the front and rear of the whole stack of padding paper respectively, so that the front and rear of the whole stack of padding paper are tilted upwards, while the middle of the whole stack of padding paper is supported on the padding paper placement area. After the suction cup bracket drives the suction cup to move down into place, it picks up the top padding paper of the whole stack of padding paper.

2. A mechanism for picking up a sheet of paper according to claim 1, characterized in that: The first driving mechanism includes a first cylinder, and a distance detection sensor is also mounted on the suction cup bracket. The distance detection sensor is electrically connected to the controller. The suction cup is a non-contact vacuum suction cup. During the downward movement of the suction cup bracket, after the distance detection sensor detects that the distance between the suction cup and the pad paper has reached the set parameter, the distance detection sensor sends a signal to the controller. The controller controls the first cylinder to stop moving through the solenoid valve, so that the suction cup can pick up the pad paper without directly contacting it.

3. A mechanism according to claim 1 or 2, wherein: A horizontally arranged turntable is pivotally connected to the frame. The turntable is driven by a second drive mechanism to rotate intermittently or rotate back and forth intermittently. The upper surface of the turntable is provided with two pad paper placement areas. The two pad paper placement areas are symmetrically arranged with respect to the cross-section of the central axis of one turntable. Each pad paper placement area has inclined or arc-shaped pads on both sides.

4. The paper suction mechanism according to claim 3, characterized in that: The turntable is connected to multiple vertical limiting rods around the perimeter of each pad paper placement area, and the multiple vertical limiting rods restrict the horizontal movement of the entire stack of pad papers.

5. The paper suction mechanism according to claim 4, characterized in that: Each of the vertical limiting rods can be moved and adjusted, and the upper end of each vertical limiting rod is bent outward; the distance between the two inclined or arc-shaped pads on opposite sides of the pad paper placement area can be adjusted.

6. The paper suction mechanism according to claim 3, characterized in that: A rotating shaft is fixed to the lower part of the turntable, and the rotating shaft is pivotally connected to the frame. The second drive mechanism includes a second cylinder, a rack and a gear. The gear is fixed to the rotating shaft, the rack is fixed to the piston rod of the second cylinder, and the housing of the second cylinder is fixed to the frame. The rack and the gear mesh with each other and then drive the turntable to rotate back and forth intermittently through the second cylinder.

7. The paper suction mechanism according to claim 3, characterized in that: The turntable has a through hole for each padding paper placement area. Two sensor probes are installed under the turntable. Both sensor probes are connected to the controller. Each sensor probe detects whether there is still padding paper in the padding paper placement area through one of the through holes, so that the controller can control the second drive mechanism to drive the turntable to change position in time.

8. An apparatus for inserting padding paper into a packaging box, characterized in that: The invention includes a paper suction mechanism as described in any one of claims 1 to 7; a first drive mechanism is connected to a slider, which is driven by a third drive mechanism to move back and forth in the horizontal direction. A packaging box positioning mechanism is provided on one side of the frame. The packaging box is positioned in a set position with its opening facing upwards by the packaging box positioning mechanism, so that the suction cup can carry the padding paper into the packaging box.

9. The apparatus for inserting padding paper into a packaging box according to claim 8, characterized in that: A roller conveyor mechanism is also installed on one side of the frame. The roller conveyor mechanism includes multiple rollers arranged in parallel horizontally at intervals. The multiple rollers can rotate in the same direction under the drive of a motor and a transmission mechanism. The packaging box positioning mechanism includes two parallel guide rods and a stop block. The two parallel guide rods are set on the rollers. The stop block is driven by a third cylinder and can move up and down through the gap between two adjacent rollers. When the stop block moves upward, the stop block, the two parallel guide rods and the multiple rollers position the packaging box. When the stop block moves downward to make way, the packaging box can move horizontally under the drive of the multiple rollers and the guidance of the two guide rods.

10. The apparatus for inserting padding paper into a packaging box according to claim 9, characterized in that: A first support frame is installed on the side of the roller conveyor mechanism. A detection sensor is installed on the first support frame. The detection sensor is located above the roller and is connected to a controller. When the detection sensor detects that a package is moving along the roller, the controller controls the third cylinder to move, causing the stop block to move upward and block the package. The third drive mechanism includes a fourth cylinder. A second support frame is provided on the upper part of the frame. A guide rail is provided on the second support frame to cooperate with the slider. The housing of the fourth cylinder is fixed to the second support frame, and the piston rod of the fourth cylinder is connected to the slider.

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