Splitting machine supporting device convenient for recycling paper core

Abstract

The utility model discloses a splitting machine supporting device convenient for recycling a paper core, and relates to the technical field of splitting machines, the splitting machine supporting device comprises an air expansion shaft, the air expansion shaft comprises a shaft barrel, a key strip, an air bag and an elastic piece, at least two rows of through holes are formed in the side wall of the shaft barrel in the axial direction, each row of through holes are formed in the circumferential direction of the shaft barrel, and the key strip is arranged in the air bag. Every two adjacent rows of through holes are arranged at intervals, key strips are arranged in the through holes, an air bag is arranged in the shaft barrel and used for pushing the key strips to move towards the outer side of the shaft barrel, the elastic pieces are used for pushing the key strips to move towards the interior of the shaft barrel, supporting tiles are arranged at the ends, away from the air bag, of the key strips, and when the air bag is deflated, all the supporting tiles in each row are spliced to form an annular structure. According to the utility model, the risk of paper core damage can be reduced, the paper core can be recycled conveniently, and resources and cost can be saved.

Description

Technical Field

[0001] This utility model relates to the field of slitting machine technology, specifically to a slitting machine support device that facilitates the recycling of paper cores. Background Technology

[0002] When processing paper packaging boxes (such as milk carton boxes and cream boxes), the packaging paper undergoes a coating process, forming a plastic film on its surface, thus obtaining coated paper. Because there is excess film on the sides of the coated paper, a slitting machine is needed to cut off the excess film.

[0003] When cutting excess film from the sides of coated paper using a slitting machine, the paper core of the coated paper roll needs to be placed on the air shaft of the slitting machine, with the air shaft supporting the coated paper roll. The air shaft includes a shaft cylinder, a key bar, an air bladder, and an elastic element. The side wall of the shaft cylinder has a through hole, and the key bar is placed inside the through hole. The air bladder is located inside the shaft cylinder. When the air bladder is inflated, it expands, pushing the key bar to move outward from the shaft cylinder, causing the key bar to support the inner side wall of the paper core. The elastic element inside the shaft cylinder pushes the key bar inward from the shaft cylinder when the air bladder deflates, causing the key bar to move away from the inner side wall of the paper core. At this point, the paper core can be removed from the air shaft.

[0004] When the key bar directly supports the inner wall of the paper core, the paper core is subjected to concentrated force because the contact area between the key bar and the paper core is small. This makes the paper core easy to break and discard, resulting in the inability to recycle the paper core, which is not conducive to saving resources and costs. Utility Model Content

[0005] To address the aforementioned shortcomings of existing technologies, this invention proposes a slitting machine support device that facilitates the recycling of paper cores. This invention reduces the risk of paper core damage, facilitates paper core recycling, and helps save resources and costs.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A slitting machine support device for facilitating paper core recycling includes an air shaft. The air shaft includes a shaft cylinder, a key bar, an air bladder, and an elastic element. The side wall of the shaft cylinder has at least two rows of through holes along the axial direction. Each row of through holes has multiple through holes along the circumference of the shaft cylinder. Adjacent rows of through holes are spaced apart. A key bar is installed inside the through holes. An air bladder is installed inside the shaft cylinder. The air bladder is used to push the key bar to move outward from the shaft cylinder. The elastic element is used to push the key bar to move inward from the shaft cylinder. A support tile is provided at the end of the key bar away from the air bladder. When the air bladder deflates, all the support tiles in each row are assembled to form a ring structure.

[0008] Furthermore, the key bar has an arc-shaped limiting plate at one end near the airbag, and the inner wall of the arc-shaped limiting plate abuts against the outer wall of the airbag.

[0009] Furthermore, the key bar is detachably connected to the support plate. The key bar has several grooves along the axial direction at one end near the support plate. The elastic element is annular and is sleeved in the groove of each row of key bars. The elastic element is located on the outside of the shaft cylinder.

[0010] Furthermore, the elastic element is either a ring spring or a ring elastic band.

[0011] Furthermore, each of the key bars has two grooves, with the two grooves respectively located at both ends of each key bar.

[0012] Furthermore, the key bar has a screw hole at one end near the support tile, the support tile has a stepped hole, a fastener is installed in the stepped hole, and the fastener is threadedly connected to the screw hole.

[0013] The beneficial effects of this utility model are:

[0014] 1. In the background technology, the inner wall of the paper core is directly supported by a key bar. Because the contact area between the key bar and the paper core is small, the paper core is subjected to concentrated force, which makes the paper core easy to be damaged.

[0015] In this invention, a support tile is used to directly support the inner wall of the paper core. The support tile increases the contact area with the inner wall of the paper core, which can disperse the force on the paper core and reduce the risk of damage to the paper core.

[0016] Furthermore, because adjacent rows of through holes are spaced apart, the key strips within adjacent rows of through holes are also spaced apart, and the support tiles on adjacent rows of key strips are also spaced apart. Because adjacent rows of support tiles are spaced apart, there is another row of support tiles axially supporting the paper core at the gap between two adjacent support tiles in each row. This allows the inner wall of the paper core to receive more comprehensive contact from the support tiles, further dispersing the stress on the paper core, further reducing the risk of paper core damage, facilitating paper core recycling, and contributing to resource and cost savings.

[0017] 2. The arc-shaped limiting plate can prevent the key bar from falling out of the through hole, which can improve the reliability of the key bar when moving in the through hole.

[0018] 3. Because the support pads and key bars are detachably connected, and the annular elastic element is fitted in the groove on the outside of the key bar shaft, when all the support pads in the same row are separated from the key bars, the grooves on this row of key bars are not covered by the support pads. At this time, the old elastic element can be removed from the grooves in this row, and the new elastic element can be fitted into the grooves in this row, which facilitates the replacement of the elastic element.

[0019] 4. Because the two grooves are respectively located at both ends of each key bar, and the elastic element is sleeved in the groove, both ends of the key bar can be subjected to the elastic force of the elastic element. When the air bag deflates, the elastic elements in the grooves at both ends of the key bar can push the key bar to move into the shaft cylinder to reset together, so that the key bar moves in a consistent manner when resetting, improving the reset efficiency of the key bar, and thus improving the reset efficiency of the support tile.

[0020] 5. The support pads and key bars are assembled using fasteners, facilitating their assembly and disassembly. When the fasteners are screwed into the screw holes, the support pads and key bars are assembled together; when the fasteners are screwed out of the screw holes, the support pads and key bars can be disassembled. Attached Figure Description

[0021] Figure 1 This is a three-dimensional diagram of a slitting machine support device that facilitates the recycling of paper cores;

[0022] Figure 2 This is a front view of a slitting machine support device that facilitates the recycling of paper cores;

[0023] Figure 3 yes Figure 2 Sectional view at point AA;

[0024] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle;

[0025] Figure 5 yes Figure 2 Sectional view at CC;

[0026] Figure 6 yes Figure 5 A magnified view of a section at point D;

[0027] Figure 7 This is a left view of a slitting machine support device that facilitates the recycling of paper cores;

[0028] Figure 8 This is a three-dimensional diagram of a slitting machine support device that facilitates the recycling of paper cores after removing the two support tiles.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1-Shaft cylinder, 11-Through hole,

[0031] 2-Key bar, 21-Arc-shaped limiting plate, 22-Groove, 23-Screw hole,

[0032] 3-Airbags

[0033] 4-Elastic element,

[0034] 5-Supporting tile, 51-Stepped hole, 52-Screw. Detailed Implementation

[0035] To better understand this utility model, it will be further described below with reference to the accompanying drawings. It is worth noting that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings. They are used for the convenience of describing this utility model and for 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 limitations on this utility model.

[0036] Example:

[0037] See Figures 1 to 8 A slitting machine support device for facilitating paper core recycling includes an air shaft. The air shaft includes a shaft cylinder 1, a key bar 2, an air bladder 3, an elastic element 4, and a support plate 5.

[0038] The sidewall of the shaft cylinder 1 has at least two rows of through holes 11 along the axial direction. For example, two, three, four, or more rows of through holes 11 can be provided. See also Figure 8 In this embodiment, two rows of through holes 11 are taken as an example. Six through holes 11 are evenly provided in both rows along the circumference of the shaft cylinder 1. The two rows of through holes 11 are spaced apart, that is, a through hole 11 of the second row is provided at the position between two adjacent through holes 11 in the first row.

[0039] See Figure 8 A key 2 is provided inside the through hole 11, and the key 2 can slide within the through hole 11 along the radial direction of the shaft cylinder 1. See also Figure 6 The key bar 2 has an arc-shaped limiting plate 21 at one end near the airbag 3. The arc-shaped limiting plate 21 and the key bar 2 are an integral structure.

[0040] See Figure 5 and Figure 6 The airbag 3 is located inside the shaft cylinder 1. When air is inflated into the airbag 3, its volume increases, and the outer wall of the airbag 3 contacts the inner wall of the arc-shaped limiting plate 21. The airbag 3 pushes the arc-shaped limiting plate 21 closer to the inner wall of the shaft cylinder 1. When the outer wall of the arc-shaped limiting plate 21 abuts against the inner wall of the shaft cylinder 1, the key bar 2 moves from the through hole 11 to its limit position. From the above inflation process of the airbag 3, it can be seen that the arc-shaped limiting plate 21 can prevent the key bar 2 from falling out of the through hole 11, thus improving the reliability of the key bar 2 when moving within the through hole 11.

[0041] See Figure 5 and Figure 6Each key bar 2 has several grooves 22 along the axial direction at one end opposite to the arc-shaped limiting plate 21. The elastic element 4 is annular, and the elastic element 4 is one of annular spring or annular elastic band. The annular elastic element 4 is sleeved in the grooves 22 of each row of key bars 2, and the elastic element 4 is located on the outside of the shaft cylinder 1. The elastic force of the elastic element 4 is used to push the key bar 2 to move into the shaft cylinder 1. When the air bag 3 is inflated, the air bag 3 overcomes the elastic force of the elastic element 4 and pushes the key bar 2 to move out of the shaft cylinder 1; when the air bag 3 is deflated, the key bar 2 moves back into the shaft cylinder 1 under the push of the elastic force.

[0042] See Figure 8 In this embodiment, each key bar 2 is provided with two grooves 22, which are located at both ends of the key bar 2. Because the two grooves 22 are respectively located at both ends of each key bar 2, and the elastic element 4 is sleeved in the grooves 22, both ends of the key bar 2 can be subjected to the elastic force of the elastic element 4. When the air bag 3 deflates, the elastic elements 4 in the grooves 22 at both ends of the key bar 2 can push the key bar 2 to move and reset into the shaft cylinder 1 together, so that the key bar 2 moves in a consistent manner during reset, thereby improving the reset efficiency of the key bar 2.

[0043] See Figure 3 and Figure 4 Each key bar 2 has a support plate 5 at the end opposite to the arc-shaped limiting plate 21. Specifically, a screw hole 23 is provided at the end of the key bar 2 near the support plate 5, and a stepped hole 51 is provided on the support plate 5. A fastener, namely a screw 52, ​​is installed in the stepped hole 51. When the screw 52 is threaded into the screw hole 23, the support plate 5 and the key bar 2 are assembled together, and the support plate 5 blocks the groove opening of the groove 22. When the screw 52 is unscrewed from the screw hole 23, the support plate 5 can be removed from the key bar 2, thereby realizing the separation of the support plate 5 and the key bar 2.

[0044] When all the support tiles 5 in the same row are separated from the key strips 2, the grooves 22 on the key strips 2 in this row are not covered by the support tiles 5. At this time, the worker can pull the old elastic element 4 outward to increase the inner diameter of the old elastic element 4 to be larger than the outer diameter of the current key strips 2 in this row, so that the old elastic element 4 can be peeled off the key strips 2. Then, the old elastic element 4 can be peeled off the key strips 2, and the new elastic element 4 can be put into the grooves 22 in this row to facilitate the replacement of the elastic element 4.

[0045] When the airbag 3 is inflated, it overcomes the elastic force of the elastic element 4 and pushes the key bar 2 to move outward from the shaft cylinder 1. The key bar 2 drives the support plate 5 to move together, and the support plate 5 gradually moves away from the outer wall of the shaft cylinder 1. Figures 1 to 8All of these are the states where the distance between the support tile 5 and the outer wall of the shaft cylinder 1 is the largest. When the airbag 3 deflates, the key strip 2 moves into the interior of the shaft cylinder 1 under the push of the elastic force and resets. The key strip 2 drives the support tile 5 to move together, so that the support tile 5 gradually approaches the outer wall of the shaft cylinder 1. Furthermore, all the support tiles 5 in each row gradually join together to form a ring structure.

[0046] The working principle of this embodiment is as follows:

[0047] When using a slitting machine to remove excess film from the sides of the coated paper, the core of the coated paper roll needs to be placed on the air shaft. Then, air is inflated into the air bladder 3, and the air bladder 3 gradually expands. The air bladder 3 overcomes the elastic force of the elastic element 4 and pushes the arc-shaped limiting plate 21 close to the inner wall of the shaft cylinder 1. The arc-shaped limiting plate 21 drives the key strip 2 to move to the outside of the shaft cylinder 1. The key strip 2 drives the support tile 5 to move together. The support tile 5 gradually moves away from the outer wall of the shaft cylinder 1 and gradually abuts against the inner wall of the paper core, so that the core of the coated paper roll is supported by the support tile 5.

[0048] In the prior art, the key strip 2 directly supports the inner wall of the paper core. Because the contact area between the key strip 2 and the paper core is small, the stress on the paper core is concentrated, making the paper core prone to damage. In this embodiment, the support tile 5 directly supports the inner wall of the paper core. The support tile 5 increases the contact area with the inner wall of the paper core, which can disperse the stress on the paper core, reduce the risk of paper core damage, facilitate paper core recycling, and help save resources and costs.

[0049] Furthermore, in this embodiment, because adjacent rows of through holes 11 are spaced apart, the key strips 2 within adjacent rows of through holes 11 are also spaced apart, and the support tiles 5 in adjacent rows are also spaced apart. Because adjacent rows of support tiles 5 are spaced apart, there is another row of support tiles 5 axially supporting the paper core at the gap between two adjacent support tiles 5 in each row. This allows the paper core to receive more comprehensive contact with the support tiles 5, further dispersing the stress on the paper core, further reducing the risk of paper core damage, facilitating paper core recycling, and helping to save resources and costs.

[0050] When the core of the coated paper roll needs to be unloaded from the air shaft, the airbag 3 deflates, and the key bar 2 moves into the interior of the shaft cylinder 1 under the push of the elastic force to reset. The key bar 2 drives the arc-shaped limiting plate 21 and the support tile 5 to move together. The arc-shaped limiting plate 21 gradually moves away from the inner wall of the shaft cylinder 1, and the support tile 5 gradually moves closer to the outer wall of the shaft cylinder 1. All the support tiles 5 in each row gradually assemble to form a ring structure.

[0051] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A slitting machine support device for facilitating paper core recycling, comprising an air shaft, the air shaft including a shaft cylinder, a key bar, an air bladder, and an elastic element, wherein the side wall of the shaft cylinder has a through hole, the key bar is disposed within the through hole, the air bladder is disposed inside the shaft cylinder, the air bladder is used to push the key bar to move outward from the shaft cylinder, and the elastic element is used to push the key bar to move inward from the shaft cylinder, characterized in that, The shaft cylinder has at least two rows of through holes along its axial direction. Each row of through holes has multiple through holes along the circumference of the shaft cylinder. Adjacent rows of through holes are spaced apart. The key strip has a support tile at the end away from the airbag. When the airbag deflates, all the support tiles in each row are assembled to form a ring structure.

2. The slitting machine support device for facilitating paper core recycling according to claim 1, characterized in that, The key bar has an arc-shaped limiting plate at one end near the airbag, and the inner sidewall of the arc-shaped limiting plate abuts against the outer sidewall of the airbag.

3. A slitting machine support device for facilitating paper core recycling according to claim 1 or 2, characterized in that, The key bar is detachably connected to the support plate. The key bar has several grooves along the axial direction at one end near the support plate. The elastic element is annular and is sleeved in the groove of each row of key bars. The elastic element is located on the outside of the shaft cylinder.

4. A slitting machine support device for facilitating paper core recycling according to claim 3, characterized in that, The elastic element is either a ring spring or a ring elastic band.

5. A slitting machine support device for facilitating paper core recycling according to claim 3, characterized in that, Each of the key bars has two grooves, with the two grooves located at both ends of each key bar.

6. A slitting machine support device for facilitating paper core recycling according to claim 3, characterized in that, The key bar has a screw hole at one end near the support tile, and the support tile has a stepped hole with a fastener inside the stepped hole. The fastener is threadedly connected to the screw hole.

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