A conveyor device for pressing edges and preventing warping

Abstract

This utility model relates to the field of conveyor structure and discloses a conveyor device for edge pressing and anti-curling, comprising: a transition guide plate connected to the output end of a first conveyor belt mechanism; an input end of a second conveyor belt mechanism connected to the transition guide plate, the second conveyor belt mechanism including a second conveyor belt; rollers including at least two drive rollers and several edge pressing rollers, the several edge pressing rollers being rotatably connected to the second conveyor belt mechanism and respectively located above both sides of the second conveyor belt, the drive rollers being connected to the output end of a drive component and located above both sides of the inlet end of the second conveyor belt, the rotation direction of the drive rollers being consistent with the movement direction of the second conveyor belt, in the working state, the drive rollers applying a driving force to the cardboard, and the edge pressing rollers rollingly pressing against the upper ends of both sides of the cardboard. The beneficial effect of this utility model is that it enables the cardboard to move smoothly along the movement direction of the second conveyor belt, and under the action of the edge pressing rollers, it prevents the cardboard from curling during conveying.

Description

Technical Field

[0001] This utility model relates to the field of conveying device structure, and specifically to a conveying device for pressing the edge to prevent warping. Background Technology

[0002] If the edges of the cardboard used to make the cartons curl up, it will prevent the cartons from aligning precisely with the crease lines during folding and forming, resulting in gaps or misalignments at the corners and edges. For example, if the edges of the top and bottom flaps (lids) of a corrugated carton curl up, the lid will not close tightly when sealed, and the carton will not form a closed rectangular structure. This will cause uneven stress when stacking, making it prone to collapse through the gaps. If the edges of the sides of the carton curl up, the cartons will not be square after forming, and the verticality deviation of the four sides will increase. Under load, the cartons will tend to tilt to one side, reducing their overall compressive strength.

[0003] In the cardboard box manufacturing process, the cardboard conveyor is a core link connecting various processes, playing a crucial role from raw material processing to cardboard box forming. Currently, in conveyor systems, the edges of the cardboard sway freely during transport due to the lack of restraint. Especially when the conveyor belt speed is high (>5m / min) or there is airflow interference in the workshop, the cardboard edges are easily blown up by the airflow or shifted to the sides due to inertia, ultimately resulting in curling. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the edges of the cardboard may curl up during the conveying process of existing conveying devices. The purpose is to provide a conveying device that presses the edges to prevent curling. Under the action of the second conveyor belt and the drive roller, the cardboard located at the entrance end of the second conveyor belt is "actively pulled" so that the cardboard can move smoothly along the moving direction of the second conveyor belt. Then, under the action of the pressing roller, the edges of the cardboard are constrained, so that the curled edges are restored to flatness and the cardboard is prevented from curling up during conveying.

[0005] This utility model is achieved through the following technical solution: An edge-pressing and anti-warping conveyor device includes a first conveyor belt mechanism, a second conveyor belt mechanism, and several rollers. The output end of the first conveyor belt mechanism is connected to a transition guide plate. The input end of the second conveyor belt mechanism is connected to the transition guide plate. The second conveyor belt mechanism includes a second conveyor belt. The rollers include at least two drive rollers and several edge-pressing rollers. The edge-pressing rollers are rotatably connected to the second conveyor belt mechanism and are respectively located above both sides of the second conveyor belt. The drive rollers are connected to the output end of a drive component and are located above both sides of the inlet end of the second conveyor belt. The rotation direction of the drive rollers is consistent with the movement direction of the second conveyor belt. In the working state, the drive rollers apply a driving force to the cardboard, and the edge-pressing rollers rollably press against the upper ends of both sides of the cardboard.

[0006] The beneficial effects of this utility model are that by setting a first conveying mechanism to convey the cardboard at a relatively fast speed (<5m / min), the cardboard is then conveyed from the transition guide plate to the second conveyor belt. Under the action of the second conveyor belt and the drive rollers, the cardboard at the entrance end of the second conveyor belt is "actively pulled", so that the cardboard can move smoothly along the moving direction of the second conveyor belt. Then, under the action of the edge pressing rollers, the edge of the cardboard is constrained, so that the curled edge is restored to flatness and the cardboard is prevented from curling during conveying. The two form a continuous and stable control, ensuring the quality of the cardboard when it is sent to the next process, and thus ensuring the quality of the carton.

[0007] In some embodiments, the drive roller includes a first drive roller, the distance between the bottom of the first drive roller and the upper end of the second conveyor belt being greater than the thickness of the cardboard. By setting the first drive roller, the cardboard with warping is dragged and moved along the second conveyor belt under the action of the first drive roller.

[0008] In some embodiments, the drive roller further includes a second drive roller, wherein the distance between the bottom of the second drive roller and the upper end of the second conveyor belt is greater than the thickness of the cardboard, and the distance between the bottom of the second drive roller and the upper end of the second conveyor belt is less than the distance between the bottom of the first drive roller and the upper end of the second conveyor belt. By providing the second drive roller, cardboard being dragged by the first drive roller, or cardboard not in contact with the first drive roller, is dragged along the second conveyor belt by the combined action of the second drive roller and the second conveyor belt, flattening any raised edges.

[0009] In some embodiments, the driving component is a drive motor, and the first drive roller and the second drive roller are respectively fitted with shaft holes on the output shaft of the corresponding drive motor. The drive motor provides the driving rollers with the power to actively roll.

[0010] In some embodiments, the system further includes several motor mounting brackets, each of which is generally arc-shaped and fixedly connected to the outer side of the second conveyor belt mechanism. The drive motor is mounted on the inner side of the corresponding motor mounting bracket. The motor mounting brackets provide support and positioning for the drive motor.

[0011] In some embodiments, the distance between the bottom of the plurality of edge-pressing rollers and the upper end of the second conveyor belt is equal to the thickness of the cardboard. By setting the spacing to be equal to the thickness of the cardboard, the rollers can form a close-fitting constraint only on the edges of the cardboard, ensuring that the edges are in close contact with the conveyor belt surface without generating excessive pressure, protecting the integrity of the cardboard shape and preventing the edges from curling up.

[0012] In some embodiments, the system further includes several mounting shafts and several bearings. One end of each mounting shaft is connected to both sides of the second conveyor belt mechanism. The inner ring bore of each bearing fits into the corresponding mounting shaft, and the roller bore fits into the outer ring of the bearing. The mounting shaft is parallel to the second conveyor belt. By setting the bearings to evenly distribute the load on the rollers, uneven force distribution can prevent roller skew or wobbling, ensuring smoother transport of materials such as cardboard and reducing cardboard deviation.

[0013] In some embodiments, the transition guide plate has a U-shaped cross-section, and its width is equal to the width of the second conveyor belt. The output end of the first conveyor belt mechanism is mounted on the first frame, and the input end of the second conveyor belt mechanism is mounted on the second frame. Both ends of the filter guide plate are connected to the first frame and the second frame, respectively. The end of the transition guide plate connected to the second frame is inclined downwards. By setting the cross-section of the transition guide plate to U-shape, the cardboard is prevented from falling off both sides of the transition guide plate. Furthermore, the end of the transition guide plate connected to the second frame is inclined downwards to facilitate the smooth entry of the cardboard onto the second conveyor belt along the transition guide plate.

[0014] In some embodiments, first guide plates are respectively installed on both sides of the first conveyor belt mechanism, and the first guide plates are respectively located on both sides of the conveyor belt of the first conveyor belt mechanism. By setting the first guide plates, the cardboard is prevented from falling during the conveying process.

[0015] In some embodiments, second guide plates are respectively installed on both sides of the second conveyor belt mechanism. The second guide plates are located on both sides of the second conveyor belt. The pressing roller and the drive roller are respectively connected to the inner side of the corresponding second guide plate. The output shaft of the drive motor extends into the inner side of the second guide plate. By setting the second guide plates, the cardboard is prevented from falling and moves along a set path. The drive motor and rollers are also supported and positioned.

[0016] Compared with the prior art, this utility model has the following advantages and beneficial effects: 1. A first conveying mechanism is set up to convey the cardboard at a relatively fast speed (<5m / min), and then the cardboard is conveyed from the transition guide plate to the second conveyor belt. The two conveying mechanisms with different conveying speeds work together to improve conveying efficiency while ensuring the quality of the cardboard.

[0017] 2. Under the action of the second conveyor belt and drive rollers, the cardboard at the entrance end of the second conveyor belt is "actively pulled" so that the cardboard can move smoothly along the moving direction of the second conveyor belt. Then, under the action of the edge pressing rollers, the edge of the cardboard is constrained, so that the curled edge is restored to flatness and the cardboard is prevented from curling during conveying. The two form a continuous and stable control to ensure the quality of the cardboard when it is sent to the next process, thereby ensuring the quality of the carton.

[0018] 3. A first drive roller and a second drive roller are provided so that the cardboard being dragged by the first drive roller or the cardboard not in contact with the first drive roller is dragged along the second conveyor belt by the combined action of the second drive roller and the second conveyor belt, and the raised edges are flattened. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This is a structural diagram of the present invention; Figure 2 This is a structural diagram of the second conveyor belt mechanism in this utility model; Figure 3 This is a schematic diagram of the installation of the pressure roller in this utility model.

[0020] The attached diagram shows the markings and corresponding component names: First frame 10, second frame 101, first conveyor belt mechanism 12, first guide side plate 13, transition guide plate 14, second conveyor belt mechanism 20, second guide side plate 21, drive motor 23, motor mounting bracket 24, second drive roller 25, first drive roller 30, mounting shaft 31, bearing 32, and pressing roller 33. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0022] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0024] The terms "first," "second," etc., used in this utility model are merely for clarity of description and are not intended to limit any order or emphasize importance. Furthermore, the term "connection" as used herein, unless otherwise specified, can refer to a direct connection or an indirect connection via other components.

[0025] Example like Figures 1-3As shown, this embodiment provides a conveying device for edge pressing and anti-warping, including a first conveyor belt mechanism 12, a second conveyor belt mechanism 20, and several rollers. The output end of the first conveyor belt mechanism 12 is connected to a transition guide plate 14; the input end of the second conveyor belt mechanism 20 is connected to the transition guide plate 14, and the second conveyor belt mechanism 20 includes a second conveyor belt; the rollers include at least two drive rollers and several edge pressing rollers 33, and the several edge pressing rollers 33 are rotatably connected to the second conveyor belt mechanism 20 and are respectively located above both sides of the second conveyor belt. The drive rollers are connected to the output end of the drive component and are located above both sides of the inlet end of the second conveyor belt. The rotation direction of the drive rollers is consistent with the movement direction of the second conveyor belt. In the working state, the drive rollers apply a driving force to the cardboard, and the edge pressing rollers 33 rollably press against the upper ends of both sides of the cardboard. The first conveying mechanism transports the cardboard at a relatively fast speed (<5m / min), then transfers it from the transition guide plate 14 to the second conveyor belt. Under the action of the second conveyor belt and the drive rollers, the cardboard at the entrance end of the second conveyor belt is "actively pulled," allowing it to move smoothly along the direction of the second conveyor belt. Then, under the action of the edge pressing rollers 33, the edges of the cardboard are constrained, restoring the curled edges to flatness and preventing the cardboard from curling during transport. The two mechanisms form a continuous and stable control, ensuring the quality of the cardboard when it is delivered to the next process, and thus ensuring the quality of the carton.

[0026] See Figure 1 and Figure 2 The drive roller includes a first drive roller 30, the distance between the bottom of the first drive roller 30 and the upper end of the second conveyor belt being greater than the thickness of the cardboard. By setting the first drive roller 30, the cardboard with warping is dragged along the second conveyor belt under the action of the first drive roller 30.

[0027] See Figure 1 and Figure 2 The drive roller further includes a second drive roller 25. The distance between the bottom of the second drive roller 25 and the upper end of the second conveyor belt is greater than the thickness of the cardboard, and the distance between the bottom of the second drive roller 25 and the upper end of the second conveyor belt is less than the distance between the bottom of the first drive roller 30 and the upper end of the second conveyor belt. By providing the second drive roller 25, cardboard dragged by the first drive roller 30, or cardboard not in contact with the first drive roller 30, is dragged along the second conveyor belt by the combined action of the second drive roller 25 and the second conveyor belt, flattening any raised edges.

[0028] See Figure 1 and Figure 2The driving component is a drive motor 23, and the first drive roller 30 and the second drive roller 25 are respectively fitted with shaft holes on the output shaft of the corresponding drive motor 23. The drive motor 23 provides the power for the active rolling of the drive rollers.

[0029] See Figure 1 and Figure 2 It also includes several motor mounting brackets 24, each motor mounting bracket 24 being generally arc-shaped. The motor mounting brackets 24 are fixedly connected to the outer side of the second conveyor belt mechanism 20, and the drive motor 23 is mounted on the inner side of the corresponding motor mounting bracket 24. The drive motor 23 is supported and positioned by setting up the motor mounting brackets 24.

[0030] See Figure 1 and Figure 2 The distance between the bottom of the several edge-pressing rollers 33 and the upper end of the second conveyor belt is equal to the thickness of the cardboard. By setting the spacing to be equal to the thickness of the cardboard, the rollers can form a close-fitting constraint only on the edge of the cardboard, ensuring that the edge is in close contact with the surface of the conveyor belt without generating excess pressure, protecting the integrity of the cardboard shape and preventing the edge from curling up.

[0031] See Figures 1-3 The system also includes several mounting shafts 31 and several bearings 32. One end of each mounting shaft 31 is connected to both sides of the second conveyor belt mechanism 20. The inner ring of each bearing 32 fits into the corresponding mounting shaft 31, and the bearing hole of each pressing roller 33 fits into the outer ring of each bearing 32. The mounting shafts 31 are parallel to the second conveyor belt. By setting the bearings 32 to evenly distribute the load on the rollers, uneven force distribution can prevent roller skew or wobbling, ensuring smoother transport of materials such as cardboard and reducing cardboard deviation. The spacing between the pressing rollers 33 along the conveying direction of the second conveyor belt is 150mm to 200mm, and the distance between the foremost pressing roller 33 and the second drive roller 25 is 50mm to 80mm, forming a continuous constraint.

[0032] See Figures 1-3The outer surface of the rollers is made of polyurethane rubber (or food-grade silicone) with a Shore hardness of 60±5 and a surface roughness Ra≤0.8μm. A clear quantitative standard for a "smooth outer surface" is established to avoid deformation due to excessively soft materials or scratches on the cardboard due to excessively hard materials. The connection end between the mounting shaft 31 and the second guide plate 21 is provided with external threads, and is fixed to the oblong hole (20mm long diameter, 11mm short diameter) of the second guide plate 21 by a nut to accommodate cardboard of different widths. The distance between the first drive roller 30 and the second drive roller 25 in the conveying direction is 100mm~150mm. The distance between the bottom of the first drive roller 30 and the surface of the second conveyor belt is 2mm~3mm larger than the cardboard thickness (for example, 3mm~4mm when the cardboard thickness is 1mm). The distance between the second drive roller 25 and the first drive roller 30 is 1mm~2mm smaller (i.e., 1mm~2mm larger than the cardboard thickness), forming a "stepped pressing" to gradually flatten the warped edges. The positive pressure of the drive roller on the cardboard is achieved by adjusting the height of the motor mounting bracket 24. The pressure range is 1N to 3N (calibrated by a pressure sensor), ensuring that sufficient driving force is provided (to overcome the frictional resistance between the cardboard and the transition guide plate 14) without causing local deformation of the cardboard due to excessive pressure.

[0033] Bearing 32 is a deep groove ball bearing 32. The inner ring is interference-fitted with the mounting shaft 31 (fit tolerance H7 / k6), and the outer ring is clearance-fitted with the roller shaft hole (fit tolerance F7 / h6) to ensure that the roller rotates flexibly (no-load rotation resistance ≤0.5N).

[0034] See Figure 1 The transition guide plate 14 has a U-shaped cross-section, and its width is equal to the width of the second conveyor belt. The output end of the first conveyor belt mechanism 12 is mounted on the first frame 10, and the input end of the second conveyor belt mechanism 20 is mounted on the second frame 101. Both ends of the filter guide plate are connected to the first frame 10 and the second frame 101, respectively. The end of the transition guide plate 14 connected to the second frame 101 is inclined downwards. By setting the cross-section of the transition guide plate 14 to U-shape, the cardboard is prevented from falling off both sides of the transition guide plate 14. Furthermore, the end of the transition guide plate 14 connected to the second frame 101 is inclined downwards to facilitate the smooth entry of the cardboard onto the second conveyor belt along the transition guide plate 14. (See also...) Figure 1 First guide plates 13 are respectively installed on both sides of the first conveyor belt mechanism 12, and the first guide plates 13 are respectively located on both sides of the conveyor belt of the first conveyor belt mechanism 12. By setting the first guide plates 13, the cardboard is prevented from falling during the conveying process.

[0035] See Figure 1The second conveyor belt mechanism 20 has second guide plates 21 installed on both sides, which are located on both sides of the second conveyor belt. The pressing rollers 33 and drive rollers are connected to the inner sides of the corresponding second guide plates 21, and the output shaft of the drive motor 23 extends into the inner side of the second guide plate 21. By setting the second guide plates 21, the cardboard is prevented from falling, moves along the set path, and the drive motor 23 and rollers are supported and positioned. See Figure 1 In this invention, the transition guide plate 14 is inclined, with one end of the transition guide plate 14 connected to the second conveyor belt mechanism 20 tilting downwards, and the tilt angle of the transition guide plate 14 is 5° to 9°. The conveyor belt is made of silicone or other flexible material with a silicone anti-slip layer on the surface to increase the friction between it and the cardboard, so that the cardboard can be conveyed smoothly. The transition guide plate 14 is made of 304 stainless steel plate bent into shape, with the height of the two vertical sides of the U-shaped cross-section being 30mm to 50mm (10mm to 20mm higher than the maximum cardboard thickness), and the tilt angle being 6° (preferred value of 5° to 9°). A 0.5mm thick polytetrafluoroethylene film (friction coefficient ≤0.1) is pasted on the bottom panel surface to reduce the resistance during cardboard transition.

[0036] See Figure 1 and Figure 2 The outer surfaces of the second drive roller 25, the first drive roller 30, and the pressing roller 33 in this invention are smooth, which reduces friction with the cardboard and ensures that the cardboard is not damaged by the rollers.

[0037] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A conveying device for pressing edges and preventing warping, characterized in that, include: A first conveyor belt mechanism, the output end of which is connected to a transition guide plate; The second conveyor belt mechanism has its input end connected to the transition guide plate, and the second conveyor belt mechanism includes a second conveyor belt. The system includes several rollers, including at least two drive rollers and several edge-pressing rollers. The edge-pressing rollers are rotatably connected to the second conveyor belt mechanism and are respectively located above both sides of the second conveyor belt. The drive rollers are connected to the output end of the drive component and are located above both sides of the inlet end of the second conveyor belt. The rotation direction of the drive rollers is consistent with the movement direction of the second conveyor belt. In the working state, the drive rollers apply a driving force to the cardboard, and the edge-pressing rollers rollably press against the upper ends of both sides of the cardboard.

2. The conveying device for preventing edge warping according to claim 1, characterized in that, The drive roller includes a first drive roller, and the distance between the bottom of the first drive roller and the upper end of the second conveyor belt is greater than the thickness of the cardboard.

3. The conveying device for preventing edge lifting according to claim 2, characterized in that, The drive roller also includes a second drive roller, the distance between the bottom of the second drive roller and the upper end of the second conveyor belt is greater than the thickness of the cardboard, and the distance between the bottom of the second drive roller and the upper end of the second conveyor belt is less than the distance between the bottom of the first drive roller and the upper end of the second conveyor belt.

4. The conveying device for preventing edge lifting according to claim 3, characterized in that, The driving component is a drive motor, and the first drive roller and the second drive roller are respectively fitted with shaft holes on the corresponding output shaft of the drive motor.

5. The conveying device for preventing edge lifting according to claim 4, characterized in that, It also includes several motor mounting brackets, each of which is in the shape of an arc plate. The motor mounting brackets are fixedly connected to the outside of the second conveyor belt mechanism, and the drive motors are mounted on the inside of the corresponding motor mounting brackets.

6. The conveying device for preventing edge warping according to claim 1, characterized in that, The distance between the bottom of the several pressing rollers and the upper end of the second conveyor belt is equal to the thickness of the cardboard.

7. The conveying device for preventing edge warping according to claim 1, characterized in that, It also includes several mounting shafts and several bearings. One end of the mounting shaft is connected to both sides of the second conveyor belt mechanism. The inner ring shaft hole of the bearing is fitted on the corresponding mounting shaft. The pressure roller shaft hole is fitted on the outer ring of the bearing. The mounting shaft is parallel to the second conveyor belt.

8. The conveying device for preventing edge warping according to claim 1, characterized in that, The transition guide plate has a U-shaped cross-section, and its width is equal to the width of the second conveyor belt. The output end of the first conveyor belt mechanism is mounted on the first frame, and the input end of the second conveyor belt mechanism is mounted on the second frame. The two ends of the transition guide plate are respectively connected to the first frame and the second frame, and the end of the transition guide plate connected to the second frame is inclined downward.

9. The conveying device for preventing edge warping according to claim 1, characterized in that, First guide plates are installed on both sides of the first conveyor belt mechanism, and the first guide plates are located on both sides of the conveyor belt of the first conveyor belt mechanism.

10. The conveying device for preventing edge warping according to claim 4, characterized in that, The second conveyor belt mechanism is equipped with second guide plates on both sides. The second guide plates are located on both sides of the second conveyor belt. The pressing roller and the driving roller are respectively connected to the inner side of the corresponding second guide plate. The output shaft of the driving motor extends into the inner side of the second guide plate.

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