Waste conveying device

Abstract

This utility model provides a waste rejection conveying device for conveying sheet products, comprising: a first conveying section including a first supporting surface and a first pressing surface; a second conveying section including a second supporting surface, with a gap area between the first supporting surface and the second supporting surface; a paddle assembly including a paddle, wherein when the paddle is in a first position, the sheet product passes through the gap area, and when the paddle is in a second position, the sheet product enters the gap area and falls; the first supporting surface includes a first supporting area and a second supporting area not corresponding to the first pressing surface, and the height of the first supporting surface in the vertical direction is greater than the height of the second supporting surface in the vertical direction. This configuration allows for rapid waste rejection via the paddle, and eliminates the need for a pressing conveying section, enabling the sheet product to pass smoothly through the gap area, significantly simplifying the structure and reducing costs.

Description

Technical Field

[0001] This utility model relates to a waste conveying device. Background Technology

[0002] In the production of disposable absorbent products, such as sanitary napkins, diapers, nursing pads, and breast pads, individual products are transported by conveying devices. During the conveying process, waste rejection devices or individual product separation devices are usually required.

[0003] Currently, there are two types of rejection or single-piece removal devices installed in the conveying system. One type is to install an air blowing device between two conveyor belts, which blows air onto the single piece that needs to be rejected or separated when it passes by. The other type, as shown in document CN204656968U, entitled "Rejection Device on Diaper Production Line", is to install a conveyor section that can swing up and down. When a single piece that needs to be rejected or separated passes by, the conveyor section is swung to another position by a cylinder to separate the single piece.

[0004] These two methods currently have the following problems: The pneumatic method is difficult to adapt to single pieces of different weights and volumes simultaneously. For example, when dealing with large and small nursing pads, the pneumatic system may be able to blow away the large pads, but it may apply too much force to the small ones, causing them to fly out. Alternatively, when the air volume is reduced, large pads may be difficult to blow off. Furthermore, the pneumatic method is also difficult to adapt to increasingly higher production speeds. The oscillating conveyor section method has a large conveyor section weight and oscillation inertia, making it difficult to accurately separate individual pads. Often, multiple pads are separated during separation, leading to waste. Similarly, this method is also difficult to adapt to increasingly higher production speeds.

[0005] To address this, document CN219929072U proposes using a paddle to remove defective products between two conveyor sections. Simultaneously, to ensure products can smoothly pass through the gap between the two conveyor sections, a holding conveyor section is installed. This holding conveyor section keeps the product in a clamped or adsorbed state, allowing it to pass through the gap. However, this method requires adding a holding conveyor section, increasing structural complexity and cost. Furthermore, the presence of a holding conveyor section makes it impossible to directly observe the product's state through the gap during machine setup, resulting in inconvenience.

[0006] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0007] Therefore, this utility model provides a waste conveying device to solve the above-mentioned technical problems.

[0008] A waste conveying device for conveying sheet products, comprising:

[0009] The first conveying section includes a first supporting surface and a first pressing surface, wherein the first pressing surface is configured to apply pressure to the sheet product.

[0010] The second conveying section is located downstream of the first conveying section and includes a second support surface, wherein a first gap area is included between the first support surface and the second support surface;

[0011] A paddle assembly includes a paddle, the paddle including a guide portion having a guide surface, the paddle being selectably located in a first position or a second position, when the paddle is located in the first position, the sheet-like product moves from the first support surface through a first gap area to the second support surface, when the paddle is located in the second position, the guide portion is located in the first gap area, and the sheet-like product enters the first gap area along the extension direction of the guide surface and falls;

[0012] The first support surface includes a first support area corresponding to the first pressing surface and a second support area not corresponding to the first pressing surface. The second support area is located adjacent to the first gap area, and the height of the first support surface in the vertical direction is greater than the height of the second support surface in the vertical direction.

[0013] The first pressing surface includes a first pressing area and a second pressing area, wherein the second pressing area is adjacent to the first gap area and the second pressing area is adjustable.

[0014] The second holding area is configured to have an adjustable angle with the first supporting surface.

[0015] The first conveying section includes a first supporting assembly, a first pressing assembly, and a conveying channel located between the first supporting assembly and the first pressing assembly. The first supporting assembly includes a first supporting belt wound around a first supporting wheel and a third supporting wheel, with the first supporting surface being the upper surface of the first supporting belt facing the conveying channel. The first pressing assembly includes a first pressing belt wound around a first pressing wheel and a third pressing wheel, with the first pressing surface being the lower surface of the first pressing belt facing the conveying channel. The first pressing assembly also includes a second pressing wheel disposed between the first pressing wheel and the third pressing wheel. The first pressing belt includes a first upper contact end that abuts against the second pressing wheel. The first pressing surface includes a first upper end end adjacent to a first gap area. The second pressing area is the region between the first upper contact end and the first upper end end. The first pressing wheel is adjustable, while the position of the second pressing wheel is fixed.

[0016] The first pressing component includes an adjusting frame, which includes a first mounting hole and a forked opening extending toward a first gap area. The first pressing wheel is disposed on the forked opening, and the second pressing wheel is disposed in the first mounting hole. The adjusting frame is configured to rotate about the rotation axis of the second pressing wheel.

[0017] The first support surface further includes a third support area, and the angle between the third support area and the first support surface is adjustable.

[0018] The first support assembly further includes a second support wheel disposed between the first support wheel and the third support wheel. The first support belt includes a first lower contact end that abuts against the second support wheel. The first support surface includes a first lower end adjacent to the first gap area. The third support area is the area between the first lower contact end and the first lower end. The first support wheel is adjustable, while the position of the second support wheel is fixed.

[0019] Wherein, the distance between the first lower contact end and the first lower end is less than the distance between the first upper contact end and the first lower end.

[0020] The adjustment directions of the second pressing area and the third supporting area are opposite.

[0021] The second conveying section further includes a second pressing component, and the sheet product is in a clamping conveying state in the second conveying section.

[0022] Beneficial Effects: This utility model provides a waste conveying device for conveying sheet products, including a first conveying section, a second conveying section, and a deflector assembly. The first conveying section includes a first supporting surface and a first pressing surface, the first pressing surface being configured to apply pressure to the sheet product. The second conveying section is located downstream of the first conveying section and includes a second supporting surface, with a gap between the first and second supporting surfaces. The deflector assembly includes a deflector, the deflector including a guide portion with a guide surface, the deflector being selectably positioned in a first position or a second position. When the deflector is in the first position, the sheet product is conveyed from the first supporting surface... The sheet moves through the gap area to the second support surface. When the paddle is in the second position, the guide is located in the gap area, and the sheet product enters the gap area and falls along the extension direction of the guide surface. The first support surface includes a first support area corresponding to the first pressing surface and a second support area not corresponding to the first pressing surface. The second support area is located adjacent to the gap area, and the height of the first support surface in the vertical direction is greater than the height of the second support surface in the vertical direction. With the above configuration, on the one hand, waste can be quickly rejected by the paddle, and on the other hand, the pressing and conveying section is no longer required, which also allows the sheet product to pass smoothly through the gap area, greatly simplifying the structure and reducing costs. Attached Figure Description

[0023] Figure 1 A schematic diagram of the waste conveying device according to an embodiment of this utility model;

[0024] Figure 2 for Figure 1 Enlarged diagram of area A in the middle;

[0025] Figure 3 for Figure 1 Simplified enlarged diagram of area C;

[0026] Figure 4 for Figure 3 Schematic diagram showing the change in the position of the second pressure zone;

[0027] Figure 5 for Figure 1 Enlarged diagram of area B in the middle;

[0028] Component descriptions in the diagram:

[0029] First conveying section 10; conveying channel 100; first supporting assembly 101; first pressing assembly 102; first supporting surface 11; first supporting area 111; second supporting area 112; third supporting area 113; first pressing surface 12; first supporting roller 131; first lower end 1311; second supporting roller 132; first lower contact end 1321; third supporting roller 133; first supporting belt 134; first pressing area 121; second pressing area 122; first pressing roller 141; first upper end 1411; second pressing roller 142; first upper contact end 1421; third pressing roller 143; first pressing belt 144; adjusting frame 15; Adjustment hole 151; Second conveying section 20; Second support assembly 201; Lower front wheel 2011; Lower rear wheel 2012; Second support belt 2013; Second support surface 21; Second pressing assembly 202; Upper front wheel 2021; Upper rear wheel 2022; Second pressing belt 2023; Second pressing surface 22; Third conveying section 30; Paddle assembly 40; Paddle 41; Guide surface 410; First position 411; Second position 412; Swing shaft 42; First swing arm 43; Second swing arm 44; Connecting rod 45; Sheet product 50; Waste collection box 60; First collection port 61; Second collection port 62; First gap area 71; Second gap area 72. Detailed Implementation

[0030] Please refer to the reference. Figures 1-5 This invention provides a waste removal conveying device for conveying sheet products 50, and can selectively remove sheet products 50 during the conveying process. The sheet products 50 can be diapers, sanitary napkins, breast pads, nursing pads, etc., or other products, which are not limited here.

[0031] The conveying device includes a first conveying section 10 and a second conveying section 20. The first conveying section 10 and the second conveying section 20 are spaced apart and include a gap area. A paddle assembly 40 is provided above the gap area.

[0032] The first conveying section 10 includes a first supporting component 101 and a first pressing component 102, and a conveying channel 100 is formed between the first supporting component 101 and the first pressing component 102, wherein the sheet product 50 is clamped in the conveying channel 100.

[0033] Specifically, the first support assembly 101 includes a first lower bracket and a plurality of lower support rollers, a lower drive roller, and a first support belt 134 wound around the lower support rollers and the lower drive roller. For ease of description, the lower support roller located at one end of the first lower bracket and adjacent to the gap area is referred to as the first support roller 131, and the lower support roller located at the other end of the lower bracket is referred to as the third support roller 133. It can be understood that the first support belt 134 forms a first support surface 11 between the first support roller 131 and the third support roller 133. More specifically, the first support surface 11 is the upper surface of the first support belt 134 in the area between the first support roller 131 and the third support roller 133.

[0034] Understandably, the first supporting surface 11 includes a first lower end and a first lower end 1311. The first lower end 1311 is the end of the first supporting surface 11 adjacent to the first gap area 71, and more specifically, it is the connection position where the first supporting belt 134 is connected to the first supporting wheel 131 in a tangential manner from the upstream direction to the downstream direction. Similarly, the first pressing surface 12 includes a first upper end and a first upper end 1411. The first upper end 1411 is the end of the first pressing surface 12 adjacent to the first gap area 71.

[0035] The first pressing assembly 102 includes a first upper bracket and a plurality of upper support rollers, an upper drive wheel, and a first pressing belt 144 wound around the upper support rollers and the upper drive wheel. The upper support roller located at one end of the first upper bracket and adjacent to the gap area is called the first pressing roller 141, and the support roller located at the other end of the first upper bracket is called the third pressing roller 143. The first pressing belt 144 forms a first pressing surface 12 between the first pressing roller 141 and the third pressing roller 143. The first pressing surface 12 is the lower surface of the first pressing belt 144 in the area between the first pressing roller 141 and the third pressing roller 143.

[0036] It is understood that the conveying channel 100 is the area between the first supporting surface 11 and the first pressing surface 12. At the same time, the height of the conveying channel 100 is slightly less than the thickness of the sheet product 50. In this case, the first pressing surface 12 exerts pressure on the sheet product 50, so that the sheet product 50 is clamped in the conveying channel 100.

[0037] The second conveying section 20 includes a second supporting assembly 201, which includes a second lower support, a lower front wheel 2011 and a lower rear wheel 2012 disposed on both sides of the second lower support, and a drive wheel located below the second support. A second supporting belt 2013 is wound around the lower front wheel 2011, the lower rear wheel 2012 and the drive wheel, and forms a second supporting surface 21 between the lower front wheel 2011 and the lower rear wheel 2012. The sheet product 50 can be supported by the second supporting surface 21 and conveyed to the downstream direction. The second supporting surface 21 includes a second starting end located in the upstream direction and a second ending end located in the downstream direction. It can be understood that the second starting end can receive the sheet product 50 conveyed by the first conveying section 10.

[0038] The first conveying section 10 and the second conveying section 20 are arranged at intervals. More specifically, the second beginning end and the first lower end end 1311 are arranged at intervals, and a first gap area 71 is formed between the second beginning end and the first lower end end 1311.

[0039] The paddle assembly 40 includes a paddle 41, which includes a guide portion with a guide surface 410. It is understood that the guide surface 410 is the side of the paddle 41 facing the gap area. The paddle 41 can be selectively located in a first position 411 and a second position 412. When the paddle 41 is located in the first position 411, the sheet-like product 50 moves from the first support surface 11 through the gap area to the second support surface 21. When the paddle 41 is located in the second position 412, the guide portion is located in the first gap area 71, and the sheet-like product 50 enters the gap area and falls along the extension direction of the guide surface 410.

[0040] Specifically, the paddle assembly 40 further includes a swing shaft 42, a connecting rod assembly, and a power device. One end of the paddle 41 is fixed to the swing shaft 42. The connecting rod assembly 45 is disposed between the power device and the swing shaft 42. The power device drives the connecting rod assembly 45 and the swing shaft 42 to move, thereby causing the paddle 41 to be in a first position 411 or a second position 412. Specifically, the power device is a motor. The connecting rod assembly 45 includes a first swing arm 43 connected to the swing shaft 42, a second swing arm 44 connected to the motor output shaft, and a connecting rod 45 to the first swing shaft 42. When the motor rotates, the connecting rod 45 of the first swing arm 43 and the second swing arm 44 moves, the second swing arm 44 moves, the connecting rod 45 moves, and the first swing arm 43 moves, thereby causing the swing shaft 42 to rotate. This allows the paddle 41 to move from the first position 411 to the second position 412 or from the second position 412 to the first position 411. The actual positions of the first position 411 and the second position 412 can be flexibly adjusted according to the sheet products 50 produced, as well as the driving force of the motor and other parameters, thus adapting very flexibly to the sorting needs of different products.

[0041] Furthermore, the guide portion is arc-shaped, making the guide surface 410 arc-shaped, so that the sheet product 50 can move more easily along the extension direction of the guide surface 410 and fall off.

[0042] The first support surface 11 has a greater vertical height than the second support surface 21. The first support surface 11 includes a first support area 111 corresponding to the first pressing surface 12 and a second support area 112 not corresponding to the first pressing surface 12. The second support area 112 is positioned adjacent to the gap area so that when the paddle 41 is in the first position 411, the sheet-like product 50 can smoothly move from the first support surface 11 through the gap area to the second support surface 21. More specifically... There is no corresponding first pressing surface 12 on the upper side of the second support area 112. However, pressure is applied by the first pressing surface 12 at the first pressing surface 12. Under the action of the stress of the sheet product 50 itself, the sheet product 50 slightly bends upward at the position corresponding to the second support area 112. At the same time, the vertical height of the first supporting surface 11 is greater than the vertical height of the second supporting surface 21. Combined with the effect of gravity, the front end of the sheet product 50 can smoothly pass through the first gap area 71 in an arc and transfer to the second supporting surface 21. It can be understood that the meaning of "corresponding to the first pressing surface 12" is that the first support area is directly opposite the first pressing surface and is covered by the first pressing surface. The meaning of "not corresponding to the first pressing surface 12" is that the second support area is not covered by the first pressing surface and is exposed.

[0043] Furthermore, the first pressing surface 12 includes a first pressing area 121 and a second pressing area 122, wherein the second pressing area 122 is adjacent to the gap area and the second pressing area 122 is adjustable.

[0044] In this embodiment, the second holding area 122 is configured to be angle-adjustable with respect to the first supporting surface 11, so that the pressure of the first upper end 1411 on the sheet product 50 is adjustable, and the angle at which the sheet product 50 is bent upwards is adjustable.

[0045] Specifically, the first pressing assembly 102 further includes a second pressing wheel 142 disposed between the first pressing wheel 141 and the third pressing wheel 143, the first pressing band 144 includes a first upper contact end 1421 that abuts against the second pressing wheel 142, and the second pressing area 122 is the area between the first upper contact end 1421 and the first upper end 1411. Please refer to the above description. Figure 2 and Figure 4 The first pressing wheel 141 is adjustable, while the second pressing wheel 142 is fixed in position, thereby making the second pressing area 122 adjustable.

[0046] Furthermore, the first pressing assembly 102 includes an adjusting frame 15, which includes a first mounting hole and a forked opening extending toward the first gap area 71. The first pressing wheel 141 is disposed on the forked opening, and the second pressing wheel 142 is disposed in the first mounting hole. Meanwhile, the adjusting frame 15 is configured to rotate about the rotation axis of the second pressing wheel 142, thereby making the angle between the second pressing area 122 and the first support surface 11 adjustable.

[0047] Furthermore, the adjustment frame 15 also includes an adjustment hole 151, through which the position of the adjustment frame 15 is fixed. Specifically, the adjustment frame 15 also includes a bolt passing through the adjustment hole 151. The adjustment hole 151 is configured as an oblong hole surrounding the rotation axis of the second pressure wheel 142. When it is necessary to adjust the position of the first pressure wheel 141, the bolt passing through the adjustment hole 151 is loosened, the adjustment frame 15 is rotated to the predetermined position, and the bolt is tightened.

[0048] Furthermore, the first support surface 11 also includes a third support area 113, the angle between the third support area 113 and the first support surface 11 is adjustable. Specifically, the first support assembly 101 also includes a second support wheel 132 disposed between the first support wheel 131 and the third support wheel 133, the first support belt 134 includes a first lower contact end 1321 that abuts against the second support wheel 132, and the third support area 113 is the region between the first lower contact end 1321 and the first lower end 1311. The second support roller 132 is fixed in position while the support roller 131 is adjustable, thereby making the second support area 112 adjustable. It can be understood that by adjusting the angle between the third support area 113 and the first support surface 11, on the one hand, the angle at which the sheet product 50 leaves the first support belt 134 can be adjusted, so that the sheet product 50 can pass through the first gap area 71 at a suitable angle or direction. On the other hand, in conjunction with the second pressing area 122, the pressure applied to the sheet product 50 by the first upper end 1411 can be adjusted, so that the sheet product 50 bends appropriately.

[0049] Furthermore, the distance between the first lower contact end 1321 and the first lower end 1311 should be less than the distance between the first upper contact end 1421 and the first lower end 1311, so that the first lower contact end 1321 is closer to the gap area than the first upper contact end 1421, so that the sheet product 50 is slightly bent upward after being pressed.

[0050] Furthermore, the adjustment directions of the second pressing area 122 and the third supporting area 113 are opposite. For example, in this embodiment, the second pressing area 122 rotates clockwise, while the third supporting area 113 rotates counterclockwise.

[0051] Furthermore, the second conveying section 20 also includes a second pressing component 202, and the sheet product 50 is also in a clamping conveying state in the second conveying section 20. Specifically, the second pressing component 202 includes a second upper bracket, an upper front wheel 2021 and an upper rear wheel 2022 disposed on both sides of the second upper bracket, and a drive wheel located above the second lower bracket. The second pressing belt 2023 is wound around the upper front wheel 2021, the upper rear wheel 2022 and the drive wheel, and forms a second pressing surface 22 between the upper front wheel 2021 and the upper rear wheel 2022, so that the sheet product 50 is clamped and conveyed in the second conveying section 20 by the second pressing surface 22 and the second support surface 21.

[0052] Furthermore, the distance between the upper front wheel 2021 and the first lower end 1311 is greater than the distance between the lower front wheel 2011 and the first lower end 1311, so that the second support surface 21 includes a receiving area that does not correspond to the second pressing surface 22 in the direction adjacent to the first gap area 71, through which the sheet product 50 passing through the first gap area 71 can be easily received.

[0053] Furthermore, a third conveying section 30 is also included downstream of the second conveying section 20. The second conveying section 20 and the third conveying section 30 are spaced apart and include a second gap area 72. A paddle assembly 40 is also provided above the second gap area 72. By providing paddle assemblies 40 between the first conveying section 10 and the second conveying section 20 and between the second conveying section 20 and the third conveying section 30, the efficiency and sensitivity of rejecting waste products can be further improved.

[0054] Furthermore, a waste collection box 60 is provided below the first gap area 71. The waste collection box 60 includes a first collection port 61 corresponding to the first gap area 71 and a second collection port 62 corresponding to the second gap area 72.

[0055] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A waste conveying device for conveying sheet-like products, characterized in that, include: The first conveying section includes a first supporting surface and a first pressing surface, wherein the first pressing surface is configured to apply pressure to the sheet product. The second conveying section is located downstream of the first conveying section and includes a second support surface, wherein a first gap area is included between the first support surface and the second support surface; A paddle assembly includes a paddle, the paddle including a guide portion having a guide surface, the paddle being selectably located in a first position or a second position, when the paddle is located in the first position, the sheet-like product moves from the first support surface through a first gap area to the second support surface, when the paddle is located in the second position, the guide portion is located in the first gap area, and the sheet-like product enters the first gap area along the extension direction of the guide surface and falls; The first support surface includes a first support area corresponding to the first pressing surface and a second support area not corresponding to the first pressing surface. The second support area is located adjacent to the first gap area, and the height of the first support surface in the vertical direction is greater than the height of the second support surface in the vertical direction.

2. The waste conveying device as described in claim 1, characterized in that, The first pressing surface includes a first pressing area and a second pressing area, wherein the second pressing area is adjacent to the first gap area and the second pressing area is adjustable.

3. The waste conveying device as described in claim 2, characterized in that, The second holding area is configured to have an adjustable angle with the first supporting surface.

4. The waste conveying device as described in claim 3, characterized in that, The first conveying section includes a first supporting assembly, a first pressing assembly, and a conveying channel located between the first supporting assembly and the first pressing assembly. The first supporting assembly includes a first supporting belt wound around a first supporting wheel and a third supporting wheel, and the first supporting surface is the upper surface of the first supporting belt facing the conveying channel. The first pressing assembly includes a first pressing belt wound around a first pressing wheel and a third pressing wheel, and the first pressing surface is the lower surface of the first pressing belt facing the conveying channel. The first pressing assembly also includes a second pressing wheel disposed between the first pressing wheel and the third pressing wheel. The first pressing belt includes a first upper contact end that abuts against the second pressing wheel. The first pressing surface includes a first upper end adjacent to a first gap area. The second pressing area is the area between the first upper contact end and the first upper end. The first pressing wheel is adjustable, while the position of the second pressing wheel is fixed.

5. The waste conveying device as described in claim 4, characterized in that, The first pressing assembly includes an adjusting frame, which includes a first mounting hole and a forked opening extending toward a first gap area. The first pressing wheel is disposed on the forked opening, and the second pressing wheel is disposed in the first mounting hole. Meanwhile, the adjusting frame is configured to rotate about the rotation axis of the second pressing wheel.

6. The waste conveying device as described in claim 5, characterized in that, The first support surface also includes a third support area, and the angle between the third support area and the first support surface is adjustable.

7. The waste conveying device as described in claim 6, characterized in that, The first support assembly further includes a second support wheel disposed between the first support wheel and the third support wheel. The first support belt includes a first lower contact end that abuts against the second support wheel. The first support surface includes a first lower end adjacent to the first gap area. The third support area is the area between the first lower contact end and the first lower end. The first support wheel is adjustable, while the position of the second support wheel is fixed.

8. The waste conveying device as described in claim 7, characterized in that, The distance between the first lower contact end and the first lower end is less than the distance between the first upper contact end and the first lower end.

9. The waste conveying device as described in claim 7, characterized in that, The adjustment directions of the second pressing area and the third supporting area are opposite.

10. The waste conveying device as described in claim 7, characterized in that, The second conveying section further includes a second pressing component, and the sheet product is in a clamping conveying state in the second conveying section.

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