STRUCTURE OF HONEYCOMB PAPER EXPANDING MACHINE

Abstract

An expanding machine includes a chassis, a feeding roller carrying a honeycomb paper, a guiding roller, and an expansion roller assembly including an upper expansion roller, a lower expansion roller, and a passage gap. The upper expansion roller includes upper projection assemblies that are staggered with respect to each other. Each of the projecting assemblies includes upper projecting portions and upper supporting portions that are alternate with respect to each other. The lower expansion roller includes projecting portions and supporting portions corresponding to the upper expansion roller. When the expansion roller assembly is put into rotation, the upper projecting portions correspond to the lower supporting portion, and the lower projecting portions correspond to the upper supporting portions, so that the projections that are separately arranged may pull and expand the honeycomb paper, making it not readily compress down the honeycomb paper or generating apparent compressing marking.

Claims

1. A structure of honeycomb paper expanding machine, the expanding machine being adapted to expand or stretch a honeycomb paper, the honeycomb paper includes a plurality of connecting portions and a plurality of cutoff portions, the expanding machine mainly comprising: a chassis; a feeding roller, which is rotatably mounted at an end of the chassis and is provided for bear and support the honeycomb paper; a guiding roller, which is rotatably mounted to the chassis and is arranged at one side of the feeding roller; an expansion roller assembly, which is rotatably mounted to the chassis and is arranged at one side of the guiding roller that is opposite to the feeding roller, wherein the expansion roller assembly comprises an upper expansion roller, a lower expansion roller arranged on one side of the upper expansion roller and rotatable in a direction opposite thereto, and a passage gap formed between the upper expansion roller and the lower expansion roller; a plurality of first upper projection assemblies, which are arranged in a manner of circumferentially surrounding and mounted to the upper expansion roller at intervals in an axial direction, wherein the first upper projection assemblies each comprise a plurality of first upper projecting portions arranged in a manner of being spaced from each other in a longitudinal direction, and a plurality of first upper supporting portions arranged alternate with respect to the first upper projecting portions; a plurality of second upper projection assemblies, which are arranged in a manner of circumferentially surrounding and mounted to the upper expansion roller at intervals in an axial direction and are arranged alternate with respect to the first upper projection assemblies, wherein the second upper projection assemblies each comprise a plurality of second upper projecting portions arranged in a manner of being spaced from each other in a longitudinal direction and are located at one side of each of the first upper supporting portions, and a plurality of second upper supporting portions arranged alternate with respect to the second upper projecting portions and are located at one side of each of the first upper projecting portions; a plurality of first lower projection assemblies, which are arranged in a manner of circumferentially surrounding and mounted to the lower expansion roller at intervals in an axial direction, wherein the first lower projection assemblies each comprises a plurality of first lower projecting portions arranged in a manner of being spaced from each other in a longitudinal direction, and a plurality of first lower supporting portions are arranged alternate with respect to the first lower projecting portions; and a plurality of second lower projection assemblies, which are arranged in a manner of circumferentially surrounding and mounted to the lower expansion roller at intervals in an axial direction and are arranged alternate with respect to the first lower projection assemblies, wherein the second lower projection assemblies each comprises a plurality of second lower projecting portions arranged in a manner of being spaced from each other in a longitudinal direction and are located at one side of each of the first lower supporting portions, and a plurality of second lower supporting portions arranged alternate with respect to the second lower projecting portions and are located at one side of each of the first lower projecting portions; wherein the expansion roller assembly, during rotation, is operable such that the first upper projecting portions and the first lower supporting portions that are located at one side of the passage gap are set to correspond, in position, to each other; the second upper projecting portions and the second lower supporting portions that are located at one side of the passage gap are set to correspond, in position, to each other; the first lower projecting portions and the first upper supporting portions that are located at one side of the passage gap are set to correspond, in position, to each other; and the second lower projecting portions and the second upper supporting portions that are located at one side of the passage gap are set to correspond, in position, to each other.

2. The structure of honeycomb paper expanding machine according to claim 1, wherein upper spacing portions are arranged between the first upper projection assemblies and the second upper projection assemblies, and lower spacing portions are arranged between the first lower projection assemblies and the second lower projection assemblies.

3. The structure of honeycomb paper expanding machine according to claim 1, wherein the first upper projection assemblies and the second upper projection assemblies are arranged on at least one first fitting joint portion, and the first lower projection assemblies and the second lower projection assemblies are arranged on at least one second fitting joint portion.

4. The structure of honeycomb paper expanding machine according to claim 1, wherein the first upper projection assemblies and the second upper projection assemblies are integrally formed, as one piece, on the upper expansion roller, and the first lower projection assemblies and the second lower projection assemblies are integrally formed, as one piece, on the lower expansion roller.

5. The structure of honeycomb paper expanding machine according to claim 1, wherein the first upper projecting portions, the second upper projecting portions, the first lower projecting portions, and the second lower projecting portions are surface projections.

6. The structure of honeycomb paper expanding machine according to claim 5, wherein the surface projections are of a shape of one of a cone, an arc, or a circular platform.

7. The structure of honeycomb paper expanding machine according to claim 1, wherein the first upper supporting portions, the second upper supporting portions, the first lower supporting portions, and the second lower supporting portions are circular arc surfaces.

8. The structure of honeycomb paper expanding machine according to claim 1, wherein the first upper projecting portions, the second upper projecting portions, the first lower projecting portions, and the second lower projecting portions are provided in array arrangements.

9. The structure of honeycomb paper expanding machine according to claim 1, wherein the first upper projecting portions, the second upper projecting portions, the first lower projecting portions, and the second lower projecting portions have a height of 1 mm-5 mm.

10. The structure of honeycomb paper expanding machine according to claim 1, wherein a spacing distance of the first upper projecting portions, a spacing distance of the second upper projecting portions, a spacing distance of the first lower projecting portions, and a spacing distance of the second lower projecting portions are in a range of 5 mm-100 mm.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] FIG. 1 is a perspective view showing a preferred embodiment of the present invention.

[0011] FIG. 2 is a plan view showing an expansion roller assembly of the preferred embodiment of the present invention.

[0012] FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2.

[0013] FIG. 4 is a schematic view illustrating operation of the preferred embodiment of the present invention.

[0014] FIG. 5 is a plan view showing an expansion roller assembly according to another preferred embodiment of the present invention.

[0015] FIG. 6 is a plan view showing an expansion roller assembly according to a further preferred embodiment of the present invention.

[0016] FIG. 7 is a plan view showing an expansion roller assembly according to yet a further preferred embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0017] As shown in FIGS. 1-4, which are respectively a perspective view showing a preferred embodiment of the present invention, a plan view showing an expansion roller assembly of the preferred embodiment of the present invention, a cross-sectional view taken along line A-A of FIG. 2, and a schematic view illustrating operation of the preferred embodiment of the present invention, it can be clearly seen from the drawings that the present invention provides an expanding machine 100, which is provided for bearing and expanding a honeycomb paper or paper honeycomb 8. The honeycomb paper 8 is made up of a plurality of connecting portions 81 and a plurality of cutoff portions 82. The expanding machine 100 mainly comprise: [0018] a chassis 1; [0019] a feeding roller 2, which is rotatably mounted at an end of the chassis 1 and is provided for bear and support the honeycomb paper 8; [0020] a guiding roller 3, which is rotatably mounted to the chassis 1 and is arranged at one side of the feeding roller 2; [0021] an expansion roller assembly 4, which is rotatably mounted to the chassis 1 and is arranged at one side of the guiding roller 3 that is opposite to the feeding roller 2, wherein the expansion roller assembly 4 comprises an upper expansion roller 41, a lower expansion roller 42 arranged on one side of the upper expansion roller 41 and rotatable in a direction opposite thereto, and a passage gap 43 formed between the upper expansion roller 41 and the lower expansion roller 42; [0022] a plurality of first upper projection assemblies 51, which are arranged in a manner of circumferentially surrounding and mounted to the upper expansion roller 41 at intervals in an axial direction, wherein the first upper projection assemblies 51 each comprise a plurality of first upper projecting portions 511 arranged in a manner of being spaced from each other in a longitudinal direction, and a plurality of first upper supporting portions 512 arranged alternate with respect to the first upper projecting portions 511; [0023] a plurality of second upper projection assemblies 52, which are arranged in a manner of circumferentially surrounding and mounted to the upper expansion roller 41 at intervals in an axial direction and are arranged alternate with respect to the first upper projection assemblies 51, wherein the second upper projection assemblies 52 each comprise a plurality of second upper projecting portions 521 arranged in a manner of being spaced from each other in a longitudinal direction and are located at one side of each of the first upper supporting portions 512, and a plurality of second upper supporting portions 522 arranged alternate with respect to the second upper projecting portions 521 and are located at one side of each of the first upper projecting portions 511; [0024] a plurality of first lower projection assemblies 61, which are arranged in a manner of circumferentially surrounding and mounted to the lower expansion roller 42 at intervals in an axial direction, wherein the first lower projection assemblies 61 each comprises a plurality of first lower projecting portions 611 arranged in a manner of being spaced from each other in a longitudinal direction, and a plurality o first lower supporting portions 612 arranged alternate with respect to the first lower projecting portions 611; [0025] a plurality of second lower projection assemblies 62, which are arranged in a manner of circumferentially surrounding and mounted to the lower expansion roller 42 at intervals in an axial direction and are arranged alternate with respect to the first lower projection assemblies 61, wherein the second lower projection assemblies 62 each comprises a plurality of second lower projecting portions 621 arranged in a manner of being spaced from each other in a longitudinal direction and are located at one side of each of the first lower supporting portions 612, and a plurality of second lower supporting portions 622 arranged alternate with respect to the second lower projecting portions 621 and are located at one side of each of the first lower projecting portions 611; [0026] at least one first fitting joint portion 71, wherein the first upper projection assemblies 51 and the second upper projection assemblies 52 are arranged on the first fitting joint portion 71; [0027] at least one second fitting joint portion 72, wherein the first lower projection assemblies 61 and the second lower projection assemblies 62 are arranged on the second fitting joint portion 72; [0028] a plurality of upper spacing portions 53, which are located between the first upper projection assemblies 51 and the second upper projection assemblies 52; [0029] a plurality of lower spacing portions 63, which are located between the first lower projection assemblies 61 and the second lower projection assemblies 62; [0030] wherein the expansion roller assembly 4, during rotation, is operable such that the first upper projecting portions 511 and the first lower supporting portions 612 that are located at one side of the passage gap 43 are set to correspond, in position, to each other; the second upper projecting portions 521 and the second lower supporting portions 622 that are located at one side of the passage gap 43 are set to correspond, in position, to each other; the first lower projecting portions 611 and the first upper supporting portions 512 that are located at one side of the passage gap 43 are set to correspond, in position, to each other; and the second lower projecting portions 621 and the second upper supporting portions 522 that are located at one side of the passage gap 43 are set to correspond, in position, to each other.

[0031] The above description provides an understanding to the structure of the present invention, and based on a combination of such a structure, an effect of being not readily compressed and forming no apparent compressing marking can be achieved, such that the structure of the honeycomb paper 8, after being expanded, may maintain an intact outside appearance. It can be clearly seen from the drawings that the chassis 1, the feeding roller 2, the guiding roller 3 and the expansion roller assembly 4 can be made of corrugated paper, plastics, wood, or metallic materials, and the feeding roller 2 and the expansion roller assembly 4 are respectively arranged at two opposite end portions of the chassis 1, while the guiding roller 3 is arranged between the feeding roller 2 and the expansion roller assembly 4. The first upper projection assemblies 51 and the second upper projection assemblies 52 may include multiple sets, such as being respectively of four sets and three sets jointly arranged on the first fitting joint portion 71, and the first lower projection assemblies 61 and the second lower projection assemblies 62 may also include multiple sets, such as being respectively of four sets and three sets jointly arranged on the second fitting joint portion 72. The first fitting joint portion 71 and the second fitting joint portion 72 are both rubber sleeves. The first upper projecting portions 511, the second upper projecting portions 521, the first lower projecting portions 611, and the second lower projecting portions 621 are arranged, for an example of illustration in the instant embodiment, in the form of a surface projecting portion having a conic configuration, and the first upper supporting portions 512, the second upper supporting portions 522, the first lower supporting portions 612, and the second lower supporting portions 622 are arranged, for an example of illustration in the instant embodiment, in the form of a circular arc surface of the upper expansion roller 41 and the lower expansion roller 42.

[0032] To use, the honeycomb paper 8 is wrapped around and thus supported on the feeding roller 2, and the honeycomb paper 8 is extended to curve around one side of the guiding roller 3 to pass between the upper expansion roller 41 and the lower expansion roller 42. A user may pull the honeycomb paper 8, and the upper expansion roller 41 and the lower expansion roller 42 are rotated in opposite directions, such that the honeycomb paper 8 arranged on f the feeding roller 2 is moved through the guiding roller 3 to feed, in a horizontal direction, to the expansion roller assembly 4, with the cutoff portions 82 of the honeycomb paper 8 being slightly expanded. Under such a condition, the first upper projecting portions 511 and the first lower supporting portions 612 that are located at one side of the passage gap 43 correspond, in position, to each other; the second upper projecting portions 521 and the second lower supporting portions 622 that are located at one side of the passage gap 43 correspond, in position, to each other; the first lower projecting portions 611 and the first upper supporting portions 512 that are located at one side of the passage gap 43 correspond, in position, to each other; and the second lower projecting portions 621 and the second upper supporting portions 522 that are located at one side of the passage gap 43 correspond, in position, to each other, and in the instant embodiment, each of the projecting portions 511, 521, 611, 621 has a height that is slightly smaller than a height of the passage gap 43, so as to act on the honeycomb paper 8 through contact therewith.

[0033] As shown in FIG. 4, when the position of acting is at apertures of the cutoff portions 82, no acting can be generated to pull out and expand the honeycomb paper 8, and when the position of acting is at the connecting portions 81 of the honeycomb paper 8, firstly, a certain effect of retaining may be achieved for retaining the honeycomb paper 8, and also, a user's pulling force may be applied in combination therewith to effectively expand the cutoff portions 82 of the honeycomb paper 8. Further, at one time point of the honeycomb paper 8 passing through the passage gap 43, in one common cross-section of the honeycomb paper 8, portions P that are compressed by the expansion roller assembly 4 are discrete points that are separate, and with the honeycomb paper 8 advanced, in a next cross-section of the honeycomb paper 8, portions P that are compressed by the expansion roller assembly 4 are also discrete points that are separate, but are staggered with respect to the previous group of compressed points. In other words, the portion of the honeycomb paper 8 that has been pulled out includes compressed portions P that are discrete points that are separate from each other (see FIG. 4, the compressed portions of the honeycomb paper 8 being shown slightly curved at C), and the projecting portions and the supporting portion have height difference, making the contact area small, and thus, the honeycomb paper 8 can be effectively retained and the honeycomb paper 8 is not readily compressed flat or generates an apparent compressing marking, thereby helping maintain the honeycomb structure to enhance the resistance of the honeycomb paper 8 against compression.

[0034] Further, to allow the honeycomb paper 8 to be pulled out steadily, there need a certain number of surface projections and supporting portions in order to generate an acting force to pull out the honeycomb paper 8. Consequently, the spacing between the surface projections should not be excessively large; however, if the spacing between the projections is excessively small, then there would be a dense arrangement of the projections on the surface of the upper expansion roller 41 or the lower expansion roller 42, making it difficult for manufacturing the expansion roller assembly 4. Thus, the spacing distance D (as shown in FIG. 2) of each of the first upper projecting portions 511, the spacing distance D of each of the second upper projecting portions 521, the spacing distance D of each of the first lower projecting portions 611, and the spacing distance D of each of the second lower projecting portions 621 is preferably 5 mm to 100 mm. When the position of acting is at the honeycomb apertures, the surface projections would penetrate into the apertures, and when the honeycomb paper 8 is pulled out, the surface projection disengage from and the move out of the apertures, and consequently, if the height of the surface projections is excessively large, edge portions of the apertures may be damaged, and if the height of the surface projections is excessively small, making the upper expansion roller 41 and the lower expansion roller 42 too close to each other, a situation of compressing down the honeycomb paper 8 may result. Thus, the height of the surface projections is preferably 1-5 mm.

[0035] As shown in FIG. 5, which is a plan view showing an expansion roller assembly according to another preferred embodiment of the present invention, it can be clearly seen from the drawings that the instant embodiment is generally similar to the previous embodiment and is differently structured such that the first upper projection assemblies 51a, the second upper projection assemblies 52a, the first lower projection assemblies 61a, and the second lower projection assemblies 62a are each arranged on an individual first fitting joint portion 71a or second fitting joint portion 72a, to allow a user to freely adjust the spacing distance between the first upper projection assemblies 51a and the second upper projection assemblies 52a, or the spacing distance between the first lower projection assemblies 61a and the second lower projection assemblies 62a. Further, in the instant embodiment, the first upper projecting portions 511a, the second upper projecting portions 521a, the first lower projecting portions 611a, and the second lower projecting portions 621a are of an arc configuration (such as a hemisphere) in order to increase a contact area with the honeycomb paper and to reduce the contacting force applied to the honeycomb paper and to balance the acting force acting on the honeycomb paper, this being provided to demonstrate the modifiability of the present invention.

[0036] As shown in FIG. 6, which is a plan view showing an expansion roller assembly according to a further preferred embodiment of the present invention, it can be clearly seen from the drawings that the instant embodiment is generally similar to the previous embodiments and is differently structured such that the first upper projection assemblies 51b and the second upper projection assemblies 52b are integrally formed, as one piece, on the upper expansion roller 41b, and the first lower projection assemblies 61b and the first lower projection assemblies 61b are integrally formed, as one piece, on the lower expansion roller 42b, and the first upper projecting portions 511b, the second upper projecting portions 521b, the first lower projecting portions 611b, and the second lower projecting portions 621b are arranged, as an example for illustration, in the form of conic surface projections, and the first upper supporting portions 512b, the second upper supporting portions 522b, the first lower supporting portions 612b, and the second lower supporting portions 622b are arranged as cylinders provided on the upper expansion roller 41b or the lower expansion roller 42b, in order to use the cylinders for height compensation for control of the size of the surface projections.

[0037] As shown in FIG. 7, which is a plan view showing an expansion roller assembly according to a further preferred embodiment of the present invention, it can be clearly seen from the drawings that the instant embodiment is generally similar to the previous embodiments and is differently structured such that the spacing distance between the first upper projecting portions 511c and the second upper projecting portions 521c is reduced, and the spacing distance between the first lower projecting portions 611c and the second lower projecting portions 621c is reduced (meaning the above-discussed arrangement of the upper spacing portions and the lower spacing portions is omitted), and in the instant embodiment, the surface projections are of a configuration of circular platform, and the first upper supporting portions 512c, the second upper supporting portions 522c, the first lower supporting portions 612c, and the second lower supporting portions 622c are arranged as circular arc surfaces of the upper expansion roller 41c or the lower expansion roller 42c.