Paper core tube structure for eliminating floor packaging indentations

Abstract

The utility model discloses a paper core tube structure for eliminating floor packaging indentations, which belongs to the technical field of PVC (polyvinyl chloride) floor packaging and comprises a paper core tube body used for rolling floor sheets, the paper core tube body sinks inwards from the outer surface to form a groove, and the sinking depth of the groove is matched with the thickness of the floor sheets. The floor sheet is wound on the surface of the paper core tube body by taking the groove as a starting point, and the size of the groove in the length direction of the paper core tube body is matched with the size of the floor sheet in the length direction of the paper core tube body. According to the paper core pipe, the grooves are formed in the paper core pipe body from the outer surface to the inner surface in the concave mode, the floor sheet can be wound on the surface of the paper core pipe body with the grooves as the starting point, and the height of the sheet at the starting point is reduced, so that the floor sheet cannot generate indentations due to the height difference after being wound for a circle.

Description

TECHNICAL FIELD

[0001] The utility model relates to a paper core tube structure for eliminating floor packaging indentation belongs to PVC floor packaging technical field. BACKGROUND

[0002] In the last process of production, that is, the packaging process, the produced and shaped floor needs to be rolled and packaged. If the product appears unacceptable appearance defects, such as surface indentation, in the packaging process, it is unacceptable for the floor with decorative effect. However, the scrapping due to indentation in the packaging process still exists universally in the industry.

[0003] The common paper core tube is a concentric cylinder structure. Due to the hardness characteristics of the PVC floor, the end of the floor protrudes from the surface of the paper core tube in the conventional rolling mode. After the PVC floor sheet is rolled around the paper core tube for one turn, due to the thickness of the floor sheet itself, longitudinal indentation will inevitably occur in the adjacent area, thereby affecting the appearance of the floor.

[0004] In view of the above reasons, a paper core tube structure for eliminating floor packaging indentation is needed in the prior art to eliminate the adverse effects of indentation caused by paper core tube rolling on the appearance of the floor. SUMMARY

[0005] To solve the problems of the prior art, the purpose of the utility model is to provide a paper core tube structure for eliminating floor packaging indentation.

[0006] In order to achieve the above-mentioned target, the utility model adopts the following technical scheme: a paper core tube structure for eliminating floor packaging indentation, comprising a paper core tube body for rolling floor sheets, the paper core tube body is recessed inward from the outer surface to form a groove, the recess depth of the groove matches the thickness of the floor sheet, the floor sheet is rolled on the surface of the paper core tube body starting from the groove, the size of the groove along the length direction of the paper core tube body matches the size of the floor sheet along the length direction of the paper core tube body.

[0007] As a preferred scheme of the paper core tube structure for eliminating floor packaging indentation, the double-sided tape is pasted in the groove.

[0008] As a preferred scheme of the paper core tube structure for eliminating floor packaging indentation, the groove penetrates the length direction of the paper core tube body.

[0009] As a preferred scheme of the paper core tube structure for eliminating floor packaging indentation, not less than two groups of grooves are provided, and the recess depths of the grooves in the two groups are different.

[0010] As a preferred scheme of the paper core tube structure for eliminating the packaging indentation of the floor, the paper core tube body is in a cylindrical shape, and no less than two groups of the grooves are distributed in an annular array on the surface of the paper core tube body.

[0011] As a preferred scheme of the paper core tube structure for eliminating the packaging indentation of the floor, the paper core tube body includes a winding support surface arranged between adjacent grooves, and the surface of each winding support surface is tangent to the same circumscribed circle.

[0012] As a preferred scheme of the paper core tube structure for eliminating the packaging indentation of the floor, the winding support surface is tangent to the bottom surface of the groove.

[0013] As a preferred scheme of the paper core tube structure for eliminating the packaging indentation of the floor, double-sided tape II is attached to the surface of the winding support surface.

[0014] As a preferred scheme of the paper core tube structure for eliminating the packaging indentation of the floor, the groove depth of different groups of the grooves gradually increases or decreases along the winding direction of the floor sheet.

[0015] As a preferred scheme of the paper core tube structure for eliminating the packaging indentation of the floor, the groove depth difference of adjacent groups of the grooves is the same.

[0016] The paper core tube structure for eliminating the packaging indentation of the floor has the following beneficial effects: the grooves formed by the inward recess of the outer surface of the paper core tube body can be used as the starting point for winding the floor sheet on the surface of the paper core tube body, and the height of the floor sheet at the starting point is reduced, so that the indentation caused by the height difference of the floor sheet after one winding cycle can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the side structure of the floor during winding according to the embodiment 1 of the present application.

[0018] Figure 2 is a schematic diagram of the side structure of the floor during winding according to the embodiment 1 of the present application.

[0019] Figure 3 is a schematic diagram of the front structure of the floor according to the embodiment 2 of the present application.

[0020] Figure 4 is a schematic diagram of the front structure of the floor according to the embodiment 2 of the present application.

[0021] Figure 5 is a schematic diagram of the side structure of the floor before winding according to the embodiments 2 and 3 of the present application.

[0022] Figure 6It is the side view structure schematic diagram of the embodiment 3 floor winding.

[0023] The meaning of the reference signs in the figure: 1, paper core tube body; 11, winding support surface; 2, groove; 21, double-sided tape one; 22, double-sided tape two. DETAILED DESCRIPTION

[0024] The utility model will be further described below in conjunction with the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the utility model, and cannot limit the protection scope of the utility model.

[0025] Embodiment 1

[0026] Reference Figure 1 And Figure 2 , the embodiment provides a paper core tube structure for eliminating floor packaging indentation, can realize the effect of eliminating floor packaging indentation, and it includes paper core tube body 1 for winding floor sheet, and the recess 2 formed by the inward recess of paper core tube body 1 outer surface, floor sheet is taken as the starting point in the recess 2 and is wound on the surface of paper core tube body 1, by reducing the sheet height of starting point, so that floor sheet will not produce indentation due to height difference after winding a week.

[0027] Specifically, the recess depth D1 of the recess 2 is matched with the thickness D2 of the floor sheet, preferably the recess depth D1 of the recess 2 is equal to the thickness D2 of the floor sheet, one end of the floor sheet is wound around the paper core tube body 1 from the recess 2, so that when winding a circle is completed, the starting end of the floor sheet is tangent to the surface of the paper core tube body 1, so that when winding the second circle, no longitudinal indentation is produced due to height difference, and the appearance quality of the floor sheet is maintained. It should be noted that the starting end of the floor sheet should be as close as possible to the starting end of the recess 2, and should not exceed the recess 2, and a large gap should not be generated between the recess 2, so as to avoid new indentation generated by the contraction of the floor sheet after being pressed into the gap.

[0028] The size L1 of the recess 2 along the length direction of the paper core tube body 1 is matched with the size L2 of the floor sheet along the length direction of the paper core tube body, that is, the size of the recess 2 needs to be greater than or equal to the width size of the current floor sheet, so as to ensure that the starting end of the floor sheet falls completely into the recess 2, and the part of the starting end of the floor sheet protruding from the surface of the paper core tube body 1 is hidden.

[0029] Further, the groove 2 is pasted with double-sided tape 21, and after the starting end of the floor sheet is aligned with the groove 2, the paper of the double-sided tape 21 is torn off, and then the floor sheet is wound around the surface of the paper core tube body 1, so that the part close to the end of the floor sheet is pasted and fixed by the double-sided tape 21, to prevent the starting end of the floor sheet from slipping due to stress and causing a gap with the end of the groove 2 or exceeding the groove 2 during subsequent packaging and transportation, thereby causing indentation again. The double-sided tape 21 can be conveniently pasted with the groove 2, and the paper of the double-sided tape 21 can be stored when not in use to prevent accidental sticking; the paper is torn off for use when the floor sheet is wound, and the end of the floor sheet is fixed to limit its slipping.

[0030] Preferably, the groove 2 penetrates the length direction of the paper core tube body 1, and the groove 2 is directly arranged to penetrate the length direction of the paper core tube body 1, which is convenient for cutting and processing, saves the trouble of positioning and limiting the size by marking, and can adapt to more width sizes of floor sheets, and the width of any floor sheet smaller than the length direction size of the paper core tube body 1 can meet the use, and the universality is stronger.

[0031] Embodiment 2

[0032] Reference Figures 3-5 The second embodiment of the utility model is different from the previous embodiment, and the groove 2 is provided with not less than two groups, which can adapt to floor sheets of different thicknesses and improve the universality.

[0033] Specifically, the groove 2 is provided with not less than two groups, and the depths D1 of the grooves 2 in the not less than two groups are different. The grooves 2 with different depths D1 correspond to floor sheets of different thicknesses, so that the same model of paper core tube body 1 can adapt to more models of floor sheets, which can greatly reduce the production cost and facilitate use.

[0034] Further, the paper core tube body 1 is in a cylindrical shape, and the not less than two groups of grooves 2 are arranged in a ring array on the surface of the paper core tube body 1. The multiple groups of grooves 2 arranged in a ring array have equal intervals between adjacent groups of grooves 2, which can make the structural strength of the paper core tube body 1 at each angle more stable. The paper core tube body 1 includes winding support surfaces 11 arranged between adjacent grooves 2, and the surfaces of the winding support surfaces 11 are all tangent to the same circumscribed circle, that is, floor sheets of different models can be stably wound around the surface of the paper core tube body 1 as the starting point from any group of grooves 2.

[0035] Preferably, the winding support surface 11 is tangent to the bottom surface of the groove 2, the winding track of the floor sheet is tangent to the transition in a circular arc shape, and the floor roll is uniformly supported by the winding support surfaces 11 distributed at equal intervals. After the floor roll is wound and tightened, the indentation caused by sharp parts is reduced. In the embodiment, double-sided tape two 22 is pasted on the surface of the winding support surface 11 to enhance the adhesion of the first winding of the floor sheet and prevent the adhesion of the double-sided tape one 21 in the groove 2 from being insufficient. When the floor sheet is subjected to external force, the double-sided tape two 22 can share part of the acting force to ensure that the first winding position of the floor sheet is fixed and the stability of the product is improved.

[0036] Embodiment 3

[0037] Referring to Figure 5 and Figure 6 , the third embodiment of the present application.

[0038] Specifically, the recess depths D1 of the grooves 2 in different groups gradually increase or decrease along the winding direction of the floor sheet, so that the operator can quickly select the groove 2 that matches the thickness of the current floor sheet. If the recess depths D1 of the grooves 2 in different groups are arranged to increase along the winding direction, when the operator compares the end of the floor sheet with one of the grooves 2, if it is found that the thickness of the current floor sheet is greater than the recess depth D1 of the groove 2, the next group along the winding direction can be selected in sequence. In this way, the matching groove 2 can be quickly found without wasting time on grooves 2 with smaller recess depths D1 than the current groove 2, and since the comparison is in sequence, there is no mistake or omission.

[0039] Further, the recess depths D1 of the grooves 2 in adjacent groups have the same difference. Since the thickness of the floor sheet in actual use also has the same difference between adjacent specifications, it can be matched in actual use. At the same time, the adjacent grooves 2 with equal difference in thickness can make the transition after passing through the adjacent grooves 2 during the winding of the floor roll more uniform, so that the adjacent height difference is uniform, and there will be no large indentation due to a large height difference, so as to ensure the appearance quality of the floor sheet.

[0040] The remaining structure is the same as that of embodiment 2.

[0041] The above description is only a preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be considered as the protection range of the present application.

Claims

1. A paper core tube structure for eliminating packaging indentation of a floor panel, comprising a paper core tube body (1) for winding a floor panel sheet, characterized in that, The paper core tube body (1) is recessed inward from the outer surface to form a groove (2), the recessed depth (D1) of the groove (2) matches the thickness (D2) of the floor sheet, the floor sheet is wound on the surface of the paper core tube body (1) starting from the groove (2), and the size (L1) of the groove (2) along the length direction of the paper core tube body (1) matches the size (L2) of the floor sheet along the length direction of the paper core tube body; The groove (2) is provided in not less than two groups, and the recessed depths (D1) of the grooves (2) in the not less than two groups are different, the recessed depths (D1) of the grooves (2) in different groups gradually increase or decrease along the winding direction of the floor sheet, and the difference of the recessed depths (D1) of the grooves (2) in adjacent groups is the same; The paper core tube body (1) is in a cylindrical shape, the grooves (2) in not less than two groups are distributed in an annular array on the surface of the paper core tube body (1), the paper core tube body (1) comprises a winding support surface (11) arranged between adjacent grooves (2), the surface of each winding support surface (11) is tangent to the same circumscribed circle, and the winding support surface (11) is tangent to the bottom surface of the groove (2).

2. The paper core tube structure to eliminate floor package indentation according to claim 1, characterized in that, The groove (2) is pasted with double-sided tape one (21) inside.

3. The paper core tube structure to eliminate floor package indentation according to claim 1, wherein, The groove (2) penetrates through the length direction of the paper core tube body (1).

4. A paper core tube structure for eliminating package indentation of a floor panel according to any one of claims 1 to 3, characterized in that, The surface of the winding support surface (11) is pasted with double-sided tape two (22).

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