Cushioning packaging material, method and apparatus for forming the same, and cushioning molded core material

Abstract

The cushioning packaging material comprises a plurality of identical strip-shaped sheets joined together at joints and expanded along an expansion axis, wherein, in the expanded state, the sheets are arranged to form a substantially hexagonal honeycomb when viewed in the height direction perpendicular to the expansion axis. The sheets have a top and bottom section in the height direction, wherein the top and bottom sections are bent in the height direction to form a bent deformation end, which prevents the expanded cushioning packaging material from returning to its original unexpanded state. A method and apparatus for forming the cushioning packaging material are disclosed.

Description

[Technical Field]

[0001] This disclosure relates to a cushioning packaging material, a cushioning molding method for manufacturing the same, a cushioning molding apparatus for manufacturing the same, and a cushioning molding core material for molding the same. [Background technology]

[0002] Cushioning packaging material is provided to fill the space between a box and the object contained within the box to protect the object from collisions, damage, etc., during transport. In recent years, the logistics industry has continued to grow rapidly, and logistics-related industries such as the manufacture of cushioning packaging material have also become thriving.

[0003] Existing cushioning packaging materials generally fall into two categories: expandable plastic films and honeycomb structures. Given environmental concerns, plastic-reducing packaging materials will undoubtedly be a key focus of future development.

[0004] In recent years, paper-based cushioning packaging materials have been gradually gaining popularity because they better meet environmental requirements in terms of decomposition and disintegration.

[0005] As disclosed in U.S. Patent No. 6,871,480, the pleated layer is provided between two continuous rolls of planar sheets, and each of the top and bottom of the pleated sheet has a plurality of vertices attached to the planar sheets.

[0006] As disclosed in U.S. Patent No. 9,649,823, the packaging material comprises a core portion having a three-dimensional geometrically patterned structure and at least one backing material. The core portion has a plurality of wall portions, the wall portions defining the three-dimensional geometrically patterned structure, and the three-dimensional geometrically patterned structure provides voids within it to increase the structural strength of the packaging material.

[0007] A method for packaging an object in a shipping box, as disclosed in U.S. Patent No. 1,1679919, includes: providing a shipping box containing an inner material having the object; maintaining the packaging material in a compressed state by applying a compressive force in the longitudinal direction of the packaging material (where the packaging material is an elongated piece of corrugated cellulose material comprising a plurality of macroflutes, each macroflute oriented in a transverse direction that traverses the longitudinal direction of the packaging material, and further wherein the corrugated cellulose material comprises at least one corrugated cellulose sheet having a plurality of inner material flutes); placing the compressed packaging material in a space formed between the object and the shipping box; and releasing the compressive force and expanding the packaging material to an expanded state, wherein the object is placed on the inner material of the shipping box, and the length of the elongated piece of corrugated cellulose material is longer in the expanded state than in the compressed state.

[0008] As can be seen from this disclosure in U.S. Patent No. 6,871,480 and U.S. Patent No. 9,649,823, although the foldable packaging material is increasingly used in packaging, the type of packaging material remains inseparable from the type of corrugated paper formed by joining flat sheets together with the pleated portion.

[0009] Typically, the essential portion of the existing packaging material occupies only 5 to 20% of the total volume after molding, with the remaining volume being expansion space. Therefore, the existing packaging material presents significant problems and high transportation costs. Compared to plastic packaging, paper packaging already incurs increased costs. If high transportation costs are added, it negatively impacts the development of paper packaging.

[0010] However, this disclosure of U.S. Patent No. 1,1679,919 discloses a method for overcoming the problem of transportation costs by forming the cushioning packaging material or cushioning material into a compressible state in order to reduce the transportation costs. In other words, the packaging material is produced in a pop-open state and can be appropriately compressed and packed according to the packaging space.

[0011] The basic requirements for the aforementioned existing manufacture of the final cushioning product include (1) pleating an extension portion that forms a pleated portion, and (2) joining together at least one flat sheet that positions the pleated portion within the pleated portion. The packaging materials disclosed in U.S. Patent Nos. 6,871,480 and 9,649,823 require that the pleated portion be positioned before shipment, which leads to transportation cost issues. In U.S. Patent No. 11679919, the cushioning product in its unfolded state is formed directly by the machine during manufacturing and then compressed into a box, so that the compressed cushioning product can be transported after production. In other words, the cushioning product can be compressed to reduce wasted space and transportation costs.

[0012] In summary, the pleating and expansion used to achieve the positioning effect is inconvenient for transportation. Preferably, the use of fully unexpanded pleated sheets at the packaging plant, and the rapid expansion and positioning of the pleated sheets, will certainly optimize the reduction of transportation costs. Therefore, two-stage manufacturing has become mainstream for improvement.

[0013] Chinese Patent Application Publication No. 115593796A discloses a honeycomb lattice-shaped impact-resistant paper pad structure and a method for producing the same. The production method comprises the following steps: spreading out a shrunk, mesh-like impact-resistant paper pad to form a plurality of hexagonal elongated strips of paper; distributing the hexagonal elongated strips of paper evenly at regular intervals and joining them together to form a honeycomb-like impact-resistant paper pad; feeding the honeycomb-like impact-resistant paper pad into an inverted edge scraper blade under conditions that the tensile stress remains unchanged (where the upper and lower ends of the spread out hexagonal elongated strips of paper are bent and deformed in a certain direction); and feeding the deformed honeycomb-like impact-resistant paper pad into a pair of rollers having gaps designed for forming and rolling to form the honeycomb-like impact-resistant paper pad of a designed thickness, wherein the upper and lower ends of the hexagonal elongated strips of paper are bent at the unjointed portion to form bent deformed ends, and the middle of the hexagonal elongated strips are bent at the jointed portion.

[0014] There are still several problems with the above production method. The stretched hexagonal elongated paper strip actually has different bending resistance in the unjointed and joined portions, so when the pair of rollers bend the upper and lower ends of the hexagonal elongated paper strip in the unjointed portion to form the bent deformed end with the inverted edge scraper blade, there is a predetermined gap necessary for the performance of the forming and rolling process, and the joined portion is formed by joining two sheets of paper, and therefore has a high degree of rigidity and is not easily deformed directly by the inverted scraper means.

[0015] In order to overcome the high rigidity of the joint in the molding and rolling process, the gap between the rollers is set to 30-50% of the height of the paper sheet for feeding and pressing, but this significantly impairs the vibration damping effect of the honeycomb grid. Furthermore, in order to stabilize the molding, the height of the paper sheet is further compressed to 50-65% of the original height. In addition, bending the elongated paper strips in the middle of the strips is in effect directly equivalent to compression molding, which would excessively eliminate the cushioning effect and have a serious impact on production speed and feed stability.

[0016] Furthermore, since the elongated paper strips are bent at the joint through high compression, and the height of the bent elongated paper strips is not uniform, the impact-resistant paper pad is prone to becoming uneven overall after being pressed and shaped.

[0017] In summary, in methods of using honeycomb core material as packaging material, the continuous expansion and molding of the honeycomb core material is one of the most important processes, as it can save on high transportation costs and promote environmentally friendly reuse. However, there is an urgent need to find a method to maintain a better cushioning effect and to ensure smooth and rapid continuous production of cushioning packaging material by holding the middle of the elongated paper strips as inflexible as possible during the molding and expansion of the honeycomb core material.

[0018] Any discussion of problems and solutions relating to involvement in related technologies is included in this disclosure solely for the purpose of providing context for the present invention and should not be considered as an acknowledgment that any or all of the discussion was known at the time the invention was made. [Overview of the project] [Problems that the invention aims to solve]

[0019] The purpose of this disclosure is to provide a method for molding cushioning packaging material to overcome existing problems.

[0020] Another object of the present disclosure is to provide a buffer forming machine for overcoming the existing problems.

[0021] Still another object of the present disclosure is to provide a buffer packaging material for overcoming the existing problems.

[0022] In view of the above, the present disclosure provides a recyclable and biodegradable buffer packaging material that can be easily produced from a compact buffer formed core material, is used by expanding it during use, and can be recycled after use. The buffer packaging material has a unique structure composed of a plurality of identical strip-shaped sheets, the plurality of identical strip-shaped sheets are joined to each other at the joining portions of the sheets and are expanded along the expansion axis, and the joining portions are positioned there so that, in the expanded state, the sheets form a substantially hexagonal honeycomb body as viewed in the height direction perpendicular to the expansion axis. The sheet has top and bottom sections in the height direction, the top and bottom sections are bent relative to the height direction to form bends, and the deformed ends prevent the expanded buffer packaging material from returning to its original unexpanded state. The present disclosure also provides a method and apparatus for forming the buffer packaging material. [Means for Solving the Problems]

[0023] In some embodiments, the cushioning packaging material of the present disclosure (also simply called “cushioning material”) comprises a plurality of curved strip-shaped sheets (hereinafter referred to as “strip-shaped sheets,” and sometimes simply referred to as “sheets”) connected to one another along an expansion axis, a plurality of joint portions, a plurality of bent-deformable upper ends, and a plurality of bent-deformable lower ends. The top portion and the bottom portion are configured to face each other along a vertical axis perpendicular to the expansion axis and the horizontal axis. At the joint portions, two adjacent strip-shaped sheets are attached to each other at a certain distance apart, and gaps between the plurality of cushioning materials are formed between every two adjacent strip-shaped sheets, and the bent-deformable upper ends and the bent-deformable lower ends are deformed by pressure to their limits, shrinking and reshaping the adjacent strip-shaped sheets. Some embodiments of the present disclosure provide a cushioning molded core material manufactured for forming a cushioning packaging material which is formed and molded by expanding the cushioning molded core material, comprising a plurality of strip-shaped sheets extending in the width direction, wherein the sheets are stacked in the length direction perpendicular to the width direction, and (i) each sheet has a plurality of joining portions and a plurality of non-joint portions arranged alternately in the width direction, and (ii) the joining portions of each sheet, excluding the surface sheet and bottom sheet in the expansion direction, consist of a first joining portion and a second joining portion arranged alternately in the width direction, wherein the first joining portion of the sheet is joined to the second joining portion of an adjacent sheet. Meanwhile, the second joint portion of the sheet is joined to the first joint portion of another adjacent sheet, (iii) each joint portion is composed of a top section, an intermediate section, and a bottom section along the height direction perpendicular to both the width direction and the length direction, (iv) each non-jointed portion is composed of a top section, an intermediate section, and a bottom section along the height direction, and (v) the top section and bottom section of each jointed portion and the top section and bottom section of each non-jointed portion each have a notch in the height direction perpendicular to both the width direction and the length direction.

[0024] Some embodiments of the present disclosure provide a molding apparatus for molding the above-mentioned cushioning packaging material, comprising: (a) a chassis having an inlet for guiding and loading the cushioning molding core material and an outlet disposed opposite the inlet for discharging the cushioning packaging material; (b) a transport path enclosed within the chassis through which the cushioning molding core material can pass; and (c) a drive unit, wherein the transport path includes a wide path connected to the downstream side of the inlet and a narrow path connected to the downstream side of the wide path and leading to the upstream side of the outlet, the wide path having a height greater than the height of the narrow path in the vertical axis direction, and the height of the transport path decreasing in the vertical axis direction from the wide opening to the narrow opening. The rolling unit is mounted on the chassis and includes a lower roller set and an upper roller set mounted above the lower roller set, wherein the rolling unit constitutes the transport path, and the distance between the lower roller set and the upper roller set is arranged to correspond to the height of the wide path and the height of the narrow path, and the cushioning molded core material expands in the transport direction, which is the length direction of the cushioning molded core material, to form the substantially hexagonal honeycomb body while being transported along the transport path, and then presses in the vertical axis direction, which is the height direction of the cushioning molded core material, to form the bent deformed end, and the drive unit drives the rolling unit to rotate the lower roller set and the upper roller set.

[0025] Some embodiments of the present disclosure provide a method for forming a cushioning packaging material by expanding a cushioning molding core, the cushioning molding method comprising: (A) providing or supplying the cushioning molding core; and (B) transporting the cushioning molding core into a transport path including a wide path and a narrow path downstream of the wide path, wherein in the vertical axis direction, the wide path has a height greater than the height of the narrow path, and the height of the transport path decreases in the vertical axis direction from the wide opening to the narrow opening, and a rolling unit comprising an upper roller set and a lower roller set, which is included in the transport path, wherein the distance between the lower roller set and the upper roller set is the distance of the wide path (C) The cushioning molded core material, which is arranged to correspond to the height and width of the narrow path, is transported through the transport path, thereby (I) using the components of the upper roller set and the lower roller set in the wide path to expand the cushioning molded core material in the transport direction which is the length direction of the cushioning molded core material, thereby forming the substantially hexagonal honeycomb body, and (II) using the components of the upper roller set and the lower roller set in the narrow path to press the cushioning molded core material in the vertical axis direction which is the height direction of the cushioning molded core material, thereby forming the bent deformed end, and (D) the substantially hexagonal honeycomb body having the bent deformed end is discharged from the transport path as the cushioning packaging material. [Effects of the Invention]

[0026] In some embodiments, the effects of the present disclosure are that the cushioning molding method and the cushioning molding machine can utilize the small volume of the cushioning core material used to form the cushioning packaging material through the sheet cushioning molding machine at the packaging location, which not only allows for faster transportation of the cushioning core material but also makes its transportation more convenient. The cushioning core material can be easily transported, minimizing transportation costs. The gaps in the cushioning material of the cushioning packaging material can be utilized to achieve the cushioning effect of the packaging material.

[0027] For the purpose of summarizing the aspects of the invention and the advantages achieved with respect to the related art, specific purposes and advantages of this invention are described in this disclosure. Of course, it should be understood that not all such purposes or advantages can necessarily be achieved by any particular embodiment of this invention. Accordingly, those skilled in the art will recognize that, for example, this invention may be embodied or performed in such a way as to achieve or optimize one advantage or group of advantages taught herein, without necessarily achieving other purposes or advantages that can be taught or suggested herein.

[0028] Further aspects, features, and advantages of this invention will become apparent from the detailed description below. [Brief explanation of the drawing]

[0029] These and other features of the present invention will be described below with reference to drawings of preferred embodiments. These are intended to be illustrative and not to limit the present invention. The drawings are greatly simplified for illustrative purposes and are not necessarily to scale.

[0030] [Figure 1] This is a schematic perspective view of a cushioning molding machine according to one embodiment of the present disclosure.

[0031] [Figure 2] This is a schematic exploded view of the above-described embodiment of the present disclosure.

[0032] [Figure 3] This is another schematic exploded view of the above-described embodiment of the present disclosure.

[0033] [Figure 4A] This is a schematic front view of the above embodiment of the present disclosure.

[0034] [Figure 4B] This is another front view of the above embodiment of the present disclosure.

[0035] [Figure 5]This is a schematic bottom view of the above embodiment of the present disclosure.

[0036] [Figure 6] This is a schematic side view of the above embodiment of the present disclosure.

[0037] [Figure 7] This is a schematic, enlarged view of a portion of Figure 4A.

[0038] [Figure 8] This is a schematic diagram showing how to adjust the rolling unit in the above embodiment of the present disclosure.

[0039] [Figure 9] This is a schematic perspective view showing a cushioning molded core material in the state described above before expansion and before molding, according to one embodiment of the present disclosure.

[0040] [Figure 10A] This is a schematic perspective view of a cushioning packaging material according to one embodiment of the present disclosure.

[0041] [Figure 10B] This is a schematic partial perspective view showing a cushioning packaging material formed by a cushioning molded core material in an expanded state according to one embodiment of the present disclosure.

[0042] [Figure 11] Figure 10B is a schematic, partially enlarged view.

[0043] [Figure 12] Figure 11 is a schematic cross-sectional view of the VV cutting line.

[0044] [Figure 13] Figure 11 is a schematic cross-sectional view of the VI-VI cutting line.

[0045] [Figure 14] This is an image of a substantially hexagonal honeycomb structure of a cushioning packaging material according to one embodiment of the present disclosure.

[0046] [Figure 15] This is an image of a notched cushioning molded core material according to one embodiment of the present disclosure.

[0047] [Figure 16] This is an image of an expanded cushioning molded core material showing a cutout according to one embodiment of the present disclosure.

[0048] [Figure 17] This is an image of a cushioning packaging material with a notched, bendable end according to one embodiment of the present disclosure, which is bent around both the width axis Y and the expansion axis X. [Modes for carrying out the invention]

[0049] The present invention will be described in detail below using specific embodiments, but the invention is not limited to the disclosed embodiments and encompasses any equivalents. In this disclosure, “this invention / disclosure” or “the present invention / disclosure” may refer collectively to at least one embodiment or example explicitly or inherently disclosed herein. Furthermore, in all disclosed embodiments, any element used in one embodiment may be used interchangeably or additionally in another embodiment, unless substitution is not feasible, would be counterproductive, or would not function for its intended purpose. In addition, it should be noted that in the following description, similar components will be referred to by the same reference numerals.

[0050] <First aspect of the invention>

[0051] Several embodiments are provided as a first aspect:

[0052] <1> The method for forming a cushioning packaging material is used to stretch, process, and form a cushioning molding core, the cushioning molding core comprising a plurality of sheets, a plurality of joint portions, a top portion, and a bottom portion, the sheets being stacked on top of each other along an expansion axis and connected with a gap between them along a horizontal axis substantially perpendicular to the expansion axis in order to form the joint portions, the top portion and the bottom portion being configured to face each other along a vertical axis perpendicular to the expansion axis and the horizontal axis, and the joint portions being configured to adhere two adjacent sheets to each other at a certain distance, and the method for forming the cushioning packaging material provides a rolling unit having an upper roller set and a lower roller set, and continuously rolls and presses the cushioning molding core along the expansion axis in order to clamp the cushioning molding core, defined as a loading stage and a shaping stage, here The invention relates to the following: In the loading stage, the upper and lower roller sets have a loading height not greater than the height of the sheet along the vertical axis, and the two sheets that are attached to each other before rolling are pulled apart along the expansion axis by the pressing force, so that the length of the sheet decreases along the horizontal axis, and every two sheets are connected by the joining portion that forms the gaps between a plurality of unformed cushioning materials; In the forming stage, the discharge height of the upper and lower roller sets gradually decreases compared to the loading height in the loading stage, and the two adjacent sheets that are attached to each other are rolled and pressed so that the sheets are compressed at the top portion that forms the top deformation portion and at the bottom portion of the sheet that forms the bottom deformation portion, and are formed therefrom to deliver a plurality of honeycomb cushioning packaging materials having gaps between a plurality of cushioning materials.

[0053] <2> The method for molding the aforementioned cushioning packaging material is: <1> The process further includes a tearing step following the shaping step, wherein a tearing unit is provided for the tearing step, and the tearing unit comprises a tearing drive unit and a plurality of insert rods connected by the tearing drive unit, the tearing drive unit being provided to drive the insert rods extending into the gap between two adjacent sheets, and the cushioning packaging material is torn apart while the cushioning packaging material continues to be pressed and delivered by the rolling unit.

[0054] <3> The method for molding the aforementioned cushioning packaging material is: <1> In this case, the sheet is 80 g / m² 2 From 200g / m 2 It is made from selected fiber material and has a thickness of 0.08 mm to 0.2 mm, a width along the horizontal axis of 10 cm to 80 cm, a height along the vertical axis of 1 cm to 6 cm, and a gap between every two sheets at the joint portion of 0.5 cm to 5 cm.

[0055] <4> The method for molding the aforementioned cushioning packaging material is: <3> In the loading stage, the upper and lower roller sets have a relative loading height equal to 90% to 100% of the sheet's height along the vertical axis, and in the shaping stage, the upper and lower roller sets have a relative unloading height equal to 60% to 89.9% of the sheet's height along the vertical axis.

[0056] <5> The method for molding the aforementioned cushioning packaging material is: <1> The present invention further includes a pressing unit in the loading stage, the pressing unit comprising a rotor driven by the drive unit and a plurality of pins mounted around the rotor at regular intervals, wherein the pins can extend into the gap between two adjacent sheets and produce a pressing force against the corresponding sheet along the telescopic axis.

[0057] <6> The method for molding the aforementioned cushioning packaging material is: <5> In the above-mentioned loading stage, and before the pressing unit and the rolling unit are activated, the front end of the cushioning molded core material is hooked onto the pin by the gap between the unformed cushioning material of the two adjacent sheets, and then the pressing unit and the rolling unit are activated for pressing and rolling operations.

[0058] <Second aspect of the invention>

[0059] Several embodiments are provided as second aspects:

[0060] <7> The method for forming a cushioning packaging material is for expanding and processing a cushioning molding core material for forming the cushioning packaging material, the cushioning molding core material comprising a plurality of sheets, a plurality of joint portions, a top portion, and a bottom portion, the sheets being stacked on top of each other along an expansion axis and connected with a gap between them along a horizontal axis substantially perpendicular to the expansion axis in order to form the joint portions, the top portion and the bottom portion being configured to face each other along a vertical axis perpendicular to the expansion axis and the horizontal axis, two adjacent sheets being attached to each other at a certain distance from each other at the joint portions, the cushioning molding core material being expanded 20 to 100 times for each sheet along the expansion axis in order to form a plurality of curved sheets connected to each other along the expansion axis, the top portion and the bottom portion being rolled and pressed in order to form a plurality of top deformed portions and a plurality of bottom deformed portions, and the sheets being deformed by a limiting pressure, and being shrunk and shaped in order to form the cushioning packaging material.

[0061] <8> The method for molding the aforementioned cushioning packaging material is: <7> In this case, the sheet of the cushioning molded core material is 80 g / m² 2 From 200g / m 2Made from selected fiber materials, having a thickness of 0.08 mm to 0.2 mm, a width along the horizontal axis of 10 cm to 80 cm, a height along the vertical axis of 1 cm to 6 cm, and a gap between every two sheets at the joints of 0.5 cm to 5 cm, wherein after the cushioning packaging material is formed by pressure, the width of the sheet is pulled and curved along the horizontal axis such that it is reduced by 10% to 30%, and the height of the sheet is pressed and deformed along the vertical axis such that it is reduced by 5% to 30%.

[0062] <Third aspect of the invention>

[0063] Several embodiments are provided as third aspects:

[0064] <9> The cushioning packaging material molding machine is applied to roll and press a cushioning molding core material for forming the cushioning packaging material, the cushioning molding core material comprising a plurality of sheets, a plurality of joint portions, a top portion, and a bottom portion, the sheets being stacked on top of each other along an extension axis and connected with a gap between them along a horizontal axis substantially perpendicular to the extension axis in order to form the joint portions, the top portion and the bottom portion being configured to face each other along a vertical axis perpendicular to the extension axis and the horizontal axis, two adjacent sheets being attached to each other at a certain distance from the joint portions, and the cushioning packaging material molding machine comprising a loading end for guiding and loading the cushioning molding core material and a configuration facing the loading end for discharging the cushioning packaging material A rolling unit comprising a chassis having an extended discharge end, a drive unit for producing a positioning effect relative to the chassis, a lower roller set attached to the chassis and driven by the drive unit to produce rotation, an upper roller set attached to the lower roller set and driven by the drive unit to produce rotation, and a transmission channel, wherein the transmission channel includes a wide path corresponding to the input end and a narrow end configured to face the expanded end corresponding to the discharge end, and the expanded end corresponding to the height along the vertical axis is greater than the narrow end, and the height of the transmission channel gradually decreases from the expanded end to the narrow end.

[0065] <10> The molding machine for the aforementioned cushioning packaging material is <9> The present invention further comprises a tearing unit attached to the chassis and positioned on one side of the rolling unit, the tearing unit comprising a tearing drive unit and a plurality of insert rods driven by the tearing drive unit, the tearing drive unit driving the insert rods extending into the gap between two adjacent sheets, and the cushioning packaging material being separated while the cushioning packaging material is continuously pressed and conveyed by the rolling unit and discharged from the discharge end.

[0066] <11> The molding machine for the aforementioned cushioning packaging material is <9> In this configuration, the tearing unit further includes a sensor unit attached to the chassis for detecting whether the insert rod moves far away from the transmission channel before returning to its original position.

[0067] <12> The molding machine for the aforementioned cushioning packaging material is <9> In the above, the upper roller set of the rolling unit is adjustablely mounted to the chassis to adjust the corresponding height of the transmission channel along the vertical axis, and the upper roller set includes two upper fixing blocks, two upper positioning plates, a plurality of locking parts for locking the upper positioning plates to the upper fixing blocks, and a plurality of upper rollers of the upper roller set mounted axially on the upper positioning plates, each upper fixing block having two arc-shaped slots corresponding to the telescopic axis with a gap between them, and the locking parts are mounted passing through the upper positioning plates and the arc-shaped slots.

[0068] <13> The molding machine for the aforementioned cushioning packaging material is <11> In the rolling unit, the lower roller set includes two pairs of lower fixing blocks, two lower positioning plates fixed to the lower fixing blocks, a plurality of lower rollers axially mounted on the lower positioning plates, and a plurality of guide rods connected to the lower fixing blocks and extending along the vertical axis; the upper fixing block of the upper roller set further includes two guide holes slidable along the corresponding guide rods, and the upper roller set further includes a plurality of locking screws for locking the upper fixing block to the guide rods.

[0069] <14> The molding machine for the aforementioned cushioning packaging material is <9> The present invention further includes a push unit mounted on the chassis and positioned inside the loading end, the push unit comprising a rotor driven by the drive unit and a plurality of pins attached to the rotor at regular intervals around the rotor, the pins being able to extend into the gap between two adjacent sheets for pushing the corresponding sheets.

[0070] <15> The molding machine for the aforementioned cushioning packaging material is <9> In this configuration, the cushioning molded core material has an original height corresponding to the vertical axis that is not greater than the loading height at the expanded end of the transmission channel corresponding to the vertical axis, and the original height is greater than the unloading height at the narrow end of the transmission channel corresponding to the vertical axis.

[0071] <Fourth aspect of the invention>

[0072] Some embodiments provide a fourth aspect:

[0073] <16> The cushioning packaging material comprises a plurality of curved sheets connected to each other along an expansion axis, a plurality of joint portions, a plurality of top deformable portions, and a plurality of bottom deformable portions. The top portions and bottom portions are configured to face each other along a vertical axis perpendicular to the expansion axis and the horizontal axis. Two adjacent sheets are attached to the joint portions at a fixed interval, forming gaps between the plurality of cushioning materials between every pair of adjacent sheets. The top deformable portions and bottom deformable portions are pressed and deformed in a manner that restricts the adjacent sheets from shrinking and being reshaped.

[0074] <17> The aforementioned cushioning packaging material is <16> In this case, the sheet of the cushioning packaging material is 80 g / m² 2 From 200g / m 2Made from selected fiber materials, with a thickness of 0.08 mm to 0.2 mm, a width along the horizontal axis of 10 cm to 80 cm, a height along the vertical axis of 1 cm to 6 cm, and a gap between the two sheets at the joint of 0.5 cm to 5 cm before compression and molding, and after compression and molding the sheet is stretched and curved along the horizontal axis so that the width of the sheet is reduced by 10% to 30%, and the height of the sheet is pressed and deformed along the vertical axis so that the height of the sheet is reduced by 5% to 30%.

[0075] <18> The aforementioned cushioning packaging material is <16> In this configuration, the gaps between each cushioning material are formed into a honeycomb shape by substantially six surrounding walls, two of the surrounding walls are spaced apart along the expansion axis corresponding to the two joint portions, and the top deformation portion and the bottom deformation portion are formed into the surrounding walls.

[0076] The first to fourth aspects of this invention described above are explained below.

[0077] Referring to Figures 1 to 4, the cushion molding machine of the present disclosure comprises a chassis 109, a drive unit 20, a rolling unit 30, a pressing unit 40, and a tearing unit 50.

[0078] The chassis 109 has an entrance 110, an exit 120 configured to face the entrance 110 along the telescopic axis X, and an inclined guide plate 130 disposed in the exit 120 (as shown in Figure 4).

[0079] Referring to Figures 3 to 6, the drive unit 20 generates rotation relative to the chassis 109 and includes a lower drive set 21 and an upper drive set 22. The lower drive set 21 includes a lower drive motor 211 and a plurality of lower gears 212 driven by the lower drive motor 211. The upper drive set 22 includes an upper drive motor 221 and a plurality of upper gears 222 driven by the upper drive motor 221.

[0080] The rolling unit 30 is mounted on the chassis 109 and includes a lower roller set 31, an upper roller set 32 ​​mounted on the upper part of the lower roller set 31, and a transport path 33 (as shown in Figure 4).

[0081] The lower roller set 31 comprises two pairs of lower fixing blocks 311, two lower positioning plates 312 fixed to each pair of lower fixing blocks 311, a plurality of lower rollers 313 mounted axially on the lower positioning plates 312, and a plurality of guide rods 314 connected to the lower fixing blocks 311 and extending along the vertical axis Z perpendicular to the telescopic axis X. The lower drive set 21 is attached to one of the lower positioning plates 312, and each lower roller 313 is connected via a lower gear 212, and the lower roller set 31 can be driven by the lower drive set 21 to produce rotation.

[0082] The upper roller set 32 ​​is adjustablely mounted to the chassis 109 to allow adjustment of the transport path 33 corresponding to the height along the vertical axis Z. The upper roller set 32 ​​comprises two upper fixing blocks 321 connected to each other, two upper positioning plates 322, a plurality of locking parts 323 for locking the upper positioning plates 322 to the upper fixing blocks 321, a plurality of upper rollers 324 mounted axially on the upper positioning plates 322, and a plurality of locking screws 325. Each upper fixing block 321 comprises two arc-shaped slots 326 spaced apart from each other and configured corresponding to the telescopic axis X, and a pair of guide holes 327 molded on one side of the arc-shaped slots 326 and slidable along the guide rod 314. The locking parts 323 are mounted through the upper positioning plates 322 and the arc-shaped slots 326. The locking screws 325 are provided for locking the upper fixing blocks 321 to the corresponding guide rods 314. The upper drive set 22 is attached to one of the upper positioning plates 322, each upper roller 324 is connected via an upper gear 222, and the upper roller set 32 ​​is driven by the upper drive set 22 to produce rotation.

[0083] As shown in Figure 4, the transport path 33 includes a wide path 331 configured to correspond to the inlet 110 and a narrow path 332 configured to correspond to the outlet 120 and to face the wide path 331. The wide path 331, corresponding to the height along the vertical axis Z, is greater than the narrow path 332, and the height of the transport path 33 gradually decreases from the wide path 331 to the narrow path 332. The bottom of the transport path 33 is jointly defined by the upper end of the lower roller 313, and the upper part of the transport path 33 is jointly defined by the lower end of the upper roller 324. The guide plate 13 gradually slopes downward from the narrow path 332 to the exterior of the chassis 109.

[0084] Referring to Figures 4 to 7, the push unit 40 is mounted on the chassis 109 and positioned inside the loading entrance 110. The push unit 40 includes a wheel 41 driven by the drive unit 20 and a plurality of pins 42 mounted around the wheel 41 at regular intervals.

[0085] Referring to Figures 4 to 7, the tearing unit 50 is mounted on the chassis 109 and positioned on one side of the rolling unit 30. The tearing unit 50 includes a tearing drive unit 51, a shaft 52 connected by the tearing drive unit 51, a plurality of insert rods 53 fixed to the shaft 52 and connected by the tearing drive unit 51, and a sensor unit 54 mounted on the chassis 109. The mounting position of the sensor unit 54 is set to be away from the transport path 33 before the return of the insert rods 53 in order to make corrections corresponding to the upper part of the shaft 52. In this embodiment, the tearing unit 50 is positioned between the rolling unit 30 and the discharge port 120.

[0086] The cushion molding machine of this disclosure is used to roll and press a cushion molding core material 1 (as shown in Figure 9; for convenience of representation, the right side of Figure 9 represents the expanded state) for molding a cushion packaging material 100 (as shown in Figure 10A). The cushion molding core material 1 comprises a plurality of strip-shaped sheets 10, a plurality of joining portions 11, a top portion 103, and a bottom portion 104. The sheets 10 are stacked on top of each other along the expansion axis X and connected to each other at a constant distance along the horizontal axis Y in order to form the joining portions 11. The top portion 103 and the bottom portion 104 are configured to face each other along the vertical axis Z, and the joining portions 11 are configured to connect two adjacent sheets 10 at a constant distance from each other. Preferably, the joining portions 11 for one set of two adjacent sheets and the joining portions 11 for the next set of two adjacent sheets are arranged in an unaligned configuration. The cushioning molded core material 1 has an original height h corresponding to the vertical axis Z that is not greater than the loading height H1 in the wide path 331 of the transport path 33 corresponding to the vertical axis Z, and the original height h is greater than the narrow path 332 of the transport path 33 corresponding to the discharge height H2 of the vertical axis Z (as shown in Figure 4A).

[0087] The cushion molding method is used to stretch, process, and mold the cushion molding core material 1. Through the rolling unit 30 of the cushion molding machine, the pressing unit 40 and the tearing unit 50 are provided to hold the cushion molding core material 1 to define the loading stage, shaping stage, and tearing stage, and to continuously roll and press the cushion molding core material 1 along the expansion axis X.

[0088] The sheet of the cushioning molded core material 1 is made from an environmentally friendly material such as a recyclable fiber material or a biodegradable material, and the fiber material in this embodiment is 80 g / m². 2 From 200g / m 2It is preferable to select from recycled paper up to a certain size, having a thickness of 0.08 mm to 0.2 mm, a width along the horizontal axis Y of 10 cm to 80 cm, a height along the vertical axis Z of 1 cm to 6 cm, and a gap of 0.5 cm to 5 cm in the joint portion 11 between every two sheets 10.

[0089] During the loading stage, the cushioning molded core material 1 is loaded through the loading entrance of the chassis 109, and the gravity and friction of the cushioning molded core material 1 are located outside the loading entrance 110 of the chassis 109, and the rotation of the upper roller set 32 ​​and the lower roller set 31, in combination with the rolling unit 30, generates a pressing force, which causes the cushioning molded core material 1, which is in the loading entrance 110 of the chassis 109, to expand along the expansion axis X to form a gap in the unformed cushioning material, and to increase the gap between the two adjacent sheets 10. The pins 42 of the pushing unit 40 are used to intermittently extend into the gap between the two adjacent sheets 10, and the corresponding sheets 10 are pushed toward the transport path 33 and continuously from the wide path 331 toward the narrow path 332. In addition, in order to stably obtain the extension distance along the extension axis X, friction wheels (not shown) can be attached to press and stretch the unformed cushioning molded core material 1 before delivery. Notably, before the pressing unit 40 and the rolling unit 30 are activated, the front end of the cushioning molded core material 1 is hooked onto the pin 42 by the gap between the unformed cushioning material of the two adjacent sheets 10, and pressing and stretching can be performed after the pressing unit 40 and the rolling unit 30 are activated.

[0090] The cushioning molded core material 1 entering the transport path 33 is immediately pressed by the rolling unit 30, and at the same time, the transport path 33 is used to gradually reduce the height from the wide path 331 to the narrow path 332, so that the extended length of the sheet 10 corresponding to the telescopic axis X increases again along the telescopic axis X during the loading process, and the sheet 10 becomes smaller along the vertical axis Z in proportion to the height, in other words, the cushioning molded core material 1 corresponds to a point where the original height h of the vertical axis Z is not greater than the wide path 331 of the transport path 33 corresponding to the loading height H1 of the vertical axis Z. Preferably, at the loading stage, the loading height H1 between the upper roller set 32 ​​and the lower roller set 31 is equal to 90% to 100% of the height of the sheet 10 along the vertical axis Z.

[0091] In the shaping stage, the sheet 10 has an original height h greater than the narrow path 332 of the transport path 33, and has the effect of corresponding to the discharge height H2 along the vertical axis Z. Preferably, the discharge height H2 of the upper roller set 31 and the lower roller set 32 ​​is equal to 60% to 89.9% of the height of the sheet 10 along the vertical axis Z. After the cushioning molded core material 1 has passed through the transport path 33, the top portion 103 and the bottom portion 104 are destroyed and deformed by the rolling unit 30, and the sheet 10 is continuously moved out of the discharge port 120. In the aforementioned pressing environment, the cushioning packaging material 100 is pressed and deformed, and controlled to stretch its length 20 to 100 times along the expansion axis X. As shown in Figure 10A, the cushioning packaging material 100 includes a plurality of curved sheets 10 connected to each other along the expansion axis, a plurality of joint portions 11, a plurality of bent deformation upper ends 105 corresponding to the top portion 103, and a plurality of bent deformation lower ends 106 corresponding to the bottom portion 104. The joint portions 11 connect two adjacent sheets 10 at a fixed interval, forming gaps 107 between each pair of adjacent sheets 10. The bent deformation upper ends 105 and the bent deformation lower ends 106 curve toward the gaps 107 between adjacent cushioning materials. The cushioning packaging material 100 is pressed and deformed to stretch 20 to 55 times along the expansion axis, and is contracted and shaped to restrict the adjacent sheets 10. It is worth noting that as the sheets 10 pass through the outlet 120, they still experience slight resistance before they are formed. At this point, the expanded cushioning packaging material 100 remains unexpanded and unaffected by external forces.

[0092] During the tearing stage, the tearing drive unit 51 is activated to drive the shaft 52 to rotate and rotate the insert rod 53 so that it extends into the gap 107 of the cushioning material between two adjacent sheets 10, and the insert rod 53 is used to switch the adjacent sheets 10. The cushioning packaging material 100 can be torn while the cushioning packaging material 100 is continuously pressed by the rolling unit 30 and fed toward the discharge port 120. It is worth noting that the use of the insert rod 53 as described above rotates and extends between the two adjacent sheets 10 in a more ideal discharge state. In practice, if there is no special alignment control, a portion of the insert rod 53 is inserted into the joint 11 between the two sheets 10 during rotation, and a portion of the insert rod 5 extends into the gap 107 of the cushioning material between the two adjacent sheets 10. In this situation, the cushioning packaging material 100 can still be torn, but it may not be completely torn. However, even in this case, it does not affect the use of the cushioning packaging material 100. After all, the un-torn portion can be easily torn for use. Moreover, the cushioning packaging material 100 is continuously fed out without being torn, and the user can obtain the desired length by tearing it manually. In addition, the use of disposable cutting knives is reduced in the current tearing stage. Considering the aesthetics of continuous cutting, it can be directly replaced in the cutting knife unit. In Figures 4 to 7, the cushioning packaging material 100 is manufactured by the above steps and includes a plurality of curved sheets 10 connected to each other along the telescopic axis X, a plurality of joint portions 11, a plurality of bent deformation upper ends configured corresponding to the top portion 103, and a plurality of bent deformation lower ends 106 configured corresponding to the bottom portion 104. The joint portion 11 connects two adjacent sheets 10 to each other, forming gaps 107 between each pair of cushioning materials, and the bent deformation upper end 105 and the bent deformation lower end 106 are curved toward the gaps 107 between their adjacent cushioning materials.Each gap 107 of the cushioning material is substantially honeycomb-shaped and formed by six surrounding walls 108, two of which are arranged at regular intervals along the expansion axis X corresponding to the two joint portions 11, and the bent deformation upper end 105 and the bent deformation lower end 106 are formed in the surrounding walls 108. The cushioning packaging material 100 utilizes the formation of the bent deformation upper end 105 and the bent deformation lower end 106 to stabilize the cross-sectional shape of the gap 107 of the cushioning material in order to strengthen the structural strength of the surrounding walls 108, and to prevent the gap 107 of the cushioning material from retracting in the opposite direction along the expansion axis X. As the sheet 10 is stretched and bent, the width of the cushioning packaging material 100 along the horizontal axis Y decreases by 10% to 30%, and as the sheet is pressed and deformed, the height of the cushioning packaging material 100 along the vertical axis Z decreases by 5% to 30%.

[0093] The gaps 107 and six surrounding walls 108 of the cushioning packaging material 100 can be used to achieve the cushioning purpose of the packaging material. Taking advantage of the small size of the cushioning molded core material 1, the cushioning molded core material 1 is molded into the cushioning packaging material 100 through a cushioning molding machine for the sheet 10 at the packaging location. Not only is the production speed fast, but the cushioning molded core material 10 is also molded at the packaging location. The small size of product 1 can help with transportation and optimize the reduction of transportation costs. Before packaging the product, the manufacturer can use the cushioning molding machine for the sheet 10 to mold the cushioning packaging material 100 at the packaging location, so that the cushioning packaging material 100 does not need to be transported.

[0094] As shown in Figure 8, the upper roller set 32 ​​can be adjusted relative to the lower roller set 31, and the wide end and narrow path 332 of the transport path 33 can be adjusted along the vertical axis Z to correspond to the height in order to accommodate different specifications of the cushioning packaging material 100. In the adjustment method, the locking part 323 is first unlocked, then the upper positioning plate 322 is rotated relative to the upper fixing block 321, and the guide function is used to pass through the locking part 323 and enter the arc-shaped slot 326, so that the upper positioning plate 322 can drive the upper roller 324 to make adjustment relative to the lower roller 313. In addition, the wide end and narrow path 332 of the transport path 33 are adjusted along the vertical axis Z to correspond to the height. As shown by the assumed lines in Figures 4 and 8, the guide hole 327 is used to adjust so that the corresponding guide rod 314 can be mounted, and when the locking screw 325 is loose, the upper fixing block 321 can be adjusted, and the position of the upper roller 324 relative to the lower roller 313 can be adjusted.

[0095] To summarize the above description, the cushion molding method, molding machine, and their final products according to this disclosure can produce unexpected effects and certainly achieve the objectives of this disclosure.

[0096] While this disclosure has been described by specific embodiments, these should be considered illustrative and not limiting, and those skilled in the art can make various modifications and variations thereto without departing from the scope and spirit of this disclosure as defined in the claims.

[0097] <Fifth aspect of the invention>

[0098] Several embodiments are provided as a fifth aspect:

[0099] <19> The method for forming cushioning packaging material includes the following steps:

[0100] A cushioning molded core material is provided, comprising a plurality of sheets extending in the width direction, wherein the sheets are arranged along an expanding direction perpendicular to the width direction, each of the sheets includes a plurality of joint portions and a plurality of non-joint portions, the non-joint portions and the joint portions are offset from each other along the width direction, and in each pair of adjacent sheets, the joint portion of one sheet is combined with the joint portion of another sheet, and a thick laminated wall is formed at the joints of the corresponding joint portions, and a rolling unit for holding the cushioning molded core material is provided, and to form the cushioning molded core material into a cushioning packaging material, a loading stage, a molding stage The process includes pressing and conveying the cushioning molded core material along the expansion direction through a rebound phase, wherein the rolling unit includes a first upper roller friction wheel and a first lower roller friction wheel disposed along a height direction perpendicular to the width direction and the expansion direction, and the loading interval is defined between the first upper roller friction wheel and the first lower roller friction wheel, wherein in the loading phase, the cushioning molded core material is held between the first upper roller friction wheel and the first lower roller friction wheel, and the sheet is rubbed against the outer surfaces of the first upper roller friction wheel and the first lower roller friction wheel so as to generate pressing and conveying forces to press and convey the cushioning molded core material.

[0101] Here, each thick laminated wall has an intermediate section extending along the height direction, the gap of the carry-in interval in the height direction is greater than 70% of the height of the sheet in the height direction and smaller than the height of the sheet in the height direction, and in the pressing and conveying step, to maintain each of the intermediate sections of the buffer forming core material, the average bending deformation is substantially less than 10% (the average bending deformation refers to the ratio at which the end portion of the sheet is bent and deformed relative to the overall height of the sheet). Here, the rolling unit further includes a second upper roller friction wheel and a second lower roller friction wheel disposed along the height direction, and a delivery interval is defined between the second upper roller friction wheel and the second lower roller friction wheel, wherein in the forming step, the sheet is rubbed by the second upper roller friction wheel and the second lower roller friction wheel so as to generate a pressing and conveying force for pressing and conveying the buffer forming core material, the gap of the delivery interval in the height direction is smaller than the gap of the carry-in interval, so that in the pressing and conveying step, each of the intermediate sections of the buffer forming core material has an average bending deformation of substantially less than 10%, and the ratio of the gap of the delivery interval to the gap of the carry-in interval is higher than 70%, wherein in the rebounding step, the top and the bottom of each thick laminated wall in the height direction are respectively formed into two bending deformation ends extending from two opposite ends of the intermediate section, and the top and the bottom of the non-bonded portion in the height direction are formed into two bending deformation ends at each non-bonded portion, and the bending deformation ends maintain the structure of the buffer packaging material.

[0102] <20>The method for forming the buffer packaging material is characterized in that in <19>, the sheet is 80g / m 2 to 200g / m 2 is made of a fiber material having a basis weight of up to, a thickness of 0.08mm to 0.2mm, a length along the width direction of 10cm to 80cm, and a length along the height direction of 1cm to 6cm, and the length along the width direction of each of the non-bonded portions is 0.5cm to 5cm.

[0103] <21> The method for molding the aforementioned cushioning packaging material is: <19> In the above-mentioned loading stage, the cushioning molded core material is unfolded and spread out such that the thick laminated walls and non-joint portions of each pair of adjacent sheets are each formed into a plurality of substantially hexagonal honeycomb bodies, and in each substantially hexagonal honeycomb body, four non-joint portions form four side portions having lengths substantially perpendicular to the height direction, two thick laminated walls form two other side portions having lengths substantially perpendicular to the height direction, and the length of each joint portion perpendicular to the height direction is between 10% and 45% of the length of each non-joint portion perpendicular to the height direction.

[0104] <22> The method for molding the aforementioned cushioning packaging material is: <19> The process further includes an auxiliary pressing and conveying step between the loading step and the molding step, wherein the rolling unit further includes an upper auxiliary roller friction wheel mounted between the first upper roller friction wheel and the second upper roller friction wheel, and a lower auxiliary roller friction wheel mounted between the first lower roller friction wheel and the second lower roller friction wheel, wherein the upper auxiliary roller friction wheel and the lower auxiliary roller friction wheel are arranged along the height direction, and an auxiliary spacing is defined between the upper auxiliary roller friction wheel and the lower auxiliary roller friction wheel. In the auxiliary pressing and conveying process, the sheet is rubbed by the upper auxiliary roller friction wheel and the lower auxiliary roller friction wheel to generate pressing and conveying force for pressing and conveying the cushion molding core material, and the gap in the loading interval is 90% to 95% of the sheet's height along the height direction, the gap in the auxiliary pressing and conveying interval in the height direction is 80% to 85% of the sheet's height along the height direction, and the gap in the delivery interval is 70% to 75% of the sheet's height along the height direction.

[0105] <Sixth aspect of the invention>

[0106] Several embodiments are provided as a sixth aspect:

[0107] <23> The cushioning packaging material is shaped and formed by spreading out a cushioning molded core, the cushioning molded core comprising a plurality of sheets extending in the width direction, the sheets arranged along an expanding direction perpendicular to the width direction, each sheet having a plurality of offset joint portions and a plurality of non-joint portions, in each pair of adjacent sheets, the joint portion of one sheet is combined with the joint portion of another sheet, the thick laminated wall is formed at each joint of the joint portions, each of the thick laminated wall and the non-joint portion in each pair of adjacent sheets is formed together with a plurality of substantially hexagonal honeycomb bodies, and in each of the substantially hexagonal honeycomb bodies, the four non-joint portions are formed into four side portions having substantially equal widths, and the two thick laminated walls have substantially equal widths The joint portion is formed into two other side portions, and the length of each joint portion perpendicular to the height direction is not greater than 60% of the length of each non-joint portion perpendicular to the height direction, each thick laminated wall has an intermediate section extending along the height direction, the top and bottom of each thick laminated wall in the height direction are each formed into two bent deformation ends extending from two opposing ends of the intermediate section, the top and bottom of the non-joint portion in the height direction are each formed into two bent deformation ends in each non-joint portion, the top and bottom of the non-joint portion are each formed into bent deformation ends, the bent deformation ends maintain the cushioning molded core in an extended state, and the average bending deformation of each intermediate section is substantially less than 10%.

[0108] <24> The aforementioned cushioning packaging material is <23> In this case, the sheet is 80 g / m² 2 From 200g / m 2It is made from a fibrous material having a basic weight up to 0.08 mm to 0.2 mm, a length along the width direction from 10 cm to 80 cm, and a length along the height direction from 1 cm to 6 cm, wherein the length of each of the non-jointed portions along the width direction is from 0.5 cm to 5 cm, and the length of each of the jointed portions perpendicular to the height direction is from 10 to 45% of the length of each of the non-jointed portions perpendicular to the height direction.

[0109] <25> The aforementioned cushioning packaging material is <23> In this configuration, each non-jointed portion has a thin non-laminated wall, and each thick laminated wall has two embossed regions formed at the bent deformation end.

[0110] <Seventh aspect of the invention>

[0111] Several embodiments are provided as a seventh aspect:

[0112] <26> The method for forming cushioning packaging material includes the following steps:

[0113] A cushioning molded core material is provided, comprising a plurality of sheets, each having a plurality of joint portions and a plurality of non-joint portions, wherein the non-joint portions are offset from the joint portions, and in each pair of adjacent sheets, the joint portion of one sheet is combined with the joint portion of another sheet, the sheets have substantially equal heights along the height direction, and the sheets have heights ranging from 1 cm to 6 cm and thicknesses ranging from 0.08 mm to 0.2 mm along the height direction, and The rolling unit for holding the cushioning molded core material is provided, and the cushioning molded core material is to be molded into a cushioning packaging material by continuously pressing and conveying the cushioning molded core material along the expanding direction with at least two friction wheel sets throughout the loading, molding, and rebounding stages, Here, the surface of each of the at least two friction wheel sets is rough, and the friction wheel sets press and convey the cushioning molded core material by friction. Here, a loading interval and a delivery interval are defined for at least two friction wheel sets, wherein both the gap in the loading interval and the gap in the delivery interval along the height direction are smaller than the height of the sheet along the height direction, the gap in the loading interval along the height direction is larger than 70% of the height of the sheet along the height direction, and the gap in the delivery interval along the height direction is smaller than the gap in the loading interval along the height direction.

[0114] <27> The method for molding the aforementioned cushioning packaging material is: <26> In this case, the sheet is 80 g / m² 2 From 200g / m 2 Made from a fibrous material having a basic weight up to 0.08 mm to 0.2 mm and a length along the width direction from 10 cm to 80 cm, each of the sheets further comprising a plurality of unjointed portions offset from the joint portions, each of the thick laminated walls and unjointed portions of each pair of adjacent sheets being formed as a plurality of substantially hexagonal honeycomb bodies, and in each substantially hexagonal honeycomb body, four unjointed portions forming four side portions of substantially equal length perpendicular to the height direction, two thick laminated walls forming two other side portions of substantially equal length perpendicular to the height direction, and the length of each of the joint portions perpendicular to the height direction is 10 to 45% of the length of each of the unjointed portions perpendicular to the height direction.

[0115] <28> The method for molding the aforementioned cushioning packaging material is: <26> In this configuration, the rolling unit further includes an auxiliary friction wheel set mounted between the at least two friction wheel sets, wherein the gap of the auxiliary gap in the height direction is smaller than the gap of the loading gap and larger than the gap of the delivery gap.

[0116] The fifth to seventh aspects of this invention are described below:

[0117] Referring to Figures 4B and 9 to 11, the cushion molding method for spreading, processing, and molding the cushion molding core material 1 according to this disclosure includes the steps of: holding the cushion molding core material 1 using a rolling unit 1002 and a pressing unit 1003 so as to mold the cushion molding core material 1 into a cushion packaging material, and continuously pressing and conveying the cushion molding core material 1 along the extension direction X through a loading stage, a molding stage, and a rebound stage so as to mold the cushion molding core material 1 into a cushion packaging material.

[0118] In Figures 9 and 13, the cushioning molded core material 1 comprises a plurality of sheets 10 extending along the width direction Y. The sheets 10 are arranged along the stretching direction X, which is perpendicular to the width direction Y. Each of the sheets 10 has a plurality of joint portions 11 and a plurality of non-joint portions 12. The non-joint portions 12 and the joint portions 11 are offset from each other along the width direction Y. The joint portions 11 of two adjacent sheets 10 are combined with each other, and the thick laminated wall 15 is formed at the respective joints corresponding to the joint portions 11. The heights of each of the sheets 10 in the height direction Z, which is perpendicular to the width direction Y and the stretching direction X, are substantially equal. In this embodiment, the joint portions 11 of each of two adjacent sheets 10 are rolled along the stretching direction X and attached to each other. In other embodiments, the joint portions 11 can be joined by constraint. The method for combining the aforementioned joint portions 11 is a mature technique used in existing production lines for the cushioning molded core material 1, and therefore will not be described in detail.

[0119] Each of the sheets 10 of the cushioning molded core material 1 can be made from environmentally friendly materials such as reusable fiber materials or biodegradable materials. Preferably, each of the sheets 10 has a weight of 80 g / m². 2 From 200g / m 2The cycle paper has a basic weight up to 0.08 mm to 0.2 mm, a length along the width direction Y from 10 cm to 80 cm, a length along the height direction Z from 1 cm to 6 cm, and the length of each of the unjointed portions 12 along the width direction Y is from 0.5 cm to 5 cm. In this embodiment, each of the sheets 10 has a weight of 120 g / m². 2 The recycled paper has a basic weight, a thickness of 0.12 mm, a length of 30 cm along the width direction Y, and a length of 2 cm along the height direction Z, and the length of each of the non-joined portions 12 is 2 cm along the width direction Y, and the length of each of the joined portions 11 is 0.9 cm along the width direction.

[0120] The pressing unit 1003 has a driveable rotor 1031 and a plurality of pins 1032 installed around the rotor 1031 at regular intervals. The front end of the cushioning molded core material 1 is pulled open along the extension direction X by two adjacent sheets 10 (the first sheet 10 of the cushioning molded core material 1 and its adjacent sheet 10) and hooked onto the pins 1032, and the pressing unit 1003 is then activated to drive the rotor 1031 and the pins 1032 to rotate. As the pins 1032 rotate, they extend to the position between the two remaining adjacent sheets 10 and press the cushioning molded core material 1 along the extension direction X to the rolling unit 1002 for pressing and conveying.

[0121] The rolling unit 1002 comprises at least two friction wheel sets 1021. In this embodiment, the rolling unit 1002 comprises two friction wheel sets 1021. One of the friction wheel sets 1021 has a first upper roller friction wheel 1211 and a first lower roller friction wheel 1212 disposed along the height direction Z and provided for loading. The loading interval is defined between the first upper roller friction wheel 1211 and the first lower roller friction wheel 1212, and the gap of the loading interval along the height direction Z is 1.9 cm. In the loading stage, the cushioning molded core material 1 is pushed by the pin 1032 to enter the rolling unit 1002 along the extension direction X, and the rolling unit 1002 then presses and transports the cushioning molded core material 1 using one of its friction wheel sets 1021. When the front end of the cushion molding core material 1 is transported through the loading interval, the first upper roller friction wheel 1211 and the first lower roller friction wheel 1212 contact the top and bottom of the sheet 10 at the front end of the cushion molding core material 1, and the first upper roller friction wheel 1211 and the first lower roller friction wheel 1212 rotate to grip the sheet 10 and pass through the loading interval in order to generate a pressing and transporting effect 1002. At this point, the first upper roller friction wheel 1211 and the first lower roller friction wheel 1212 press and transport the sheet 10 using friction to form the top and bottom of the sheet 10 and to form a plurality of imperfectly formed substantially hexagonal honeycomb bodies. In other words, in each pair of adjacent sheets 10, each of the thick laminated walls 15 and the non-jointed portions 12 are formed into a plurality of substantially hexagonal honeycomb structures. In each substantially hexagonal honeycomb structure, the four non-jointed portions 12 are formed into four side sections of substantially equal length perpendicular to the height direction Z, the two thick laminated walls 15 are formed into two other side sections of substantially equal length perpendicular to the height direction Z, and the length of each of the jointed portions 11 perpendicular to the height direction Z is not greater than 60% of the length of each of the non-jointed portions 12 perpendicular to the height direction Z.Preferably, the length of the joint portion 11 perpendicular to the height direction Z is 10 to 45% of the length of the non-joint portion 12 perpendicular to the height direction Z. In this embodiment, when the cushioning molded core material 1 is produced on a continuous production line, the joint portions 11 are joined with adhesive, so there may be some tolerance. In addition, since the force applied to each joint portion 11 is not the same when pulled apart, the length of each joint portion 11 perpendicular to the height direction Z has a tolerance of about 3 to 5%. In this embodiment, the ratio of the length of the joint portion 11 perpendicular to the height direction Z to the length of the non-joint portion 12 perpendicular to the height direction Z is 25 to 30%.

[0122] In this embodiment, the cushioning molded core material 1 is guided to the loading interval through the pushing unit 1003, but in other embodiments, the user can directly insert the cushioning molded core material 1 into the loading interval to achieve a similar effect of clamping and loading the cushioning molded core material 1 by the first lower roller friction wheel 1212, but this increases the risk.

[0123] To stably control the degree to which the cushioning molded core material 1 expands, it is preferable to provide resistance control means to enable the cushioning molded core material 1 to reach a predetermined expansion level before being brought in, and then allow the first upper roller friction wheel 1211 and the first lower roller friction wheel 1212 to grip it. There may be many ways to provide the resistance control, for example, by setting the initial position of the cushioning molded core material 1 lower than the loading interval to create a height difference, and pulling the cushioning molded core material 1 away by gravity before being brought in. Alternatively, the horizontal height of the cushioning molded core material 1 may be set to a height similar to that of the loading interval, and rollers may be attached to the top or bottom to press the cushioning molded core material 1, which can increase the resistance to the amount of movement of the cushioning molded core material 1 and allow the roller resistance to be adjusted. This achieves the effect of controlling the cushioning molded core material 1 to expand to an expansion ratio of 20 to 100 times before entering the loading interval.

[0124] In the loading stage, the height of the sheet 10 along the height direction Z is greater than the gap of the loading interval along the height direction Z, so the first upper roller friction wheel 1211 and the first lower roller friction wheel 1212 are rotated for gripping and transporting, and the surfaces of the first upper roller friction wheel 1211 and the first lower roller friction wheel 1212 are rough, and it is possible to generate friction for pressing and transporting the cushioning molded core material 1, so that when the sheet 10 passes through the loading interval, the first upper roller friction wheel 1211 and the first lower roller friction wheel 1212 only need to rub the top and bottom of the sheet 10 in order to press and transport the cushioning molded core material 1, thus reducing the overall pressure applied to the sheet 10. In Figure 12, each thick laminated wall 15 has an intermediate section 13 that extends along the height direction Z perpendicular to the stretching direction X. When the sheet 10 passes through the loading gap, the average bending deformation of the intermediate section 13 is substantially less than 10%. Thus, the overall deformation of the intermediate section 13 can be controlled, and the impact resistance of the substantially hexagonal honeycomb body is not lost.

[0125] The difference between the gap in the loading interval along the height direction Z and the height of the sheet 10 along the height direction Z is 30% or more. In other words, if the gap in the loading interval along the height direction Z is less than 1.4 cm, this could cause the intermediate section 13 of each joint 11 to bend and deform significantly, resulting in a reduced cushioning effect. Therefore, it is essential that the gap in the loading interval along the height direction Z be controlled to 70% or more of the height of the sheet 10 along the height direction Z. Furthermore, because the surfaces of the friction wheels 1211 and 1212 provided for clamping are rough, they can generate friction to press the sheet 10, causing the sheet 10 to form folds at the top and bottom, and minimizing the impact on the structure of the intermediate section 13. The gap in the loading interval is controlled to 90% to 95% of the height of the sheet 10 along the height direction Z (which is 1.8 cm to 1.9 cm). By joining two adjacent sheets 10 with adhesive, each substantially hexagonal honeycomb body is formed, and the thickness of each thick laminated wall 15 is greater than twice the thickness of each of the unjointed portions 12, and the rigidity of each thick laminated wall 15 is greater than twice the rigidity of each of the unjointed portions 12. Therefore, if the length of each thick laminated wall 15 perpendicular to the height direction Z exceeds 60% of the length of each of the unjointed portions 12 perpendicular to the height direction Z, then when the thick laminated wall 15 is bent, each intermediate section 13 will be easily deformed due to the high resistance of the thick laminated wall 15.

[0126] Another set of friction wheels 1021 of the rolling unit 1002 includes a second upper roller friction wheel 1213 and a second lower roller friction wheel 1214 arranged along the height direction Z. The feed interval is defined between the second upper roller friction wheel 1213 and the second lower roller friction wheel 1214, and the gap of the feed interval in the height direction Z is 1.4 cm. In the molding stage, the second upper roller friction wheel 1213 and the second lower roller friction wheel 1214 are rotated to grip the top and bottom of the slightly deformed cushioning molded core material 1 and generate friction to move the cushioning molded core material 1 along the stretching direction X through the feed interval to further mold the stretched honeycomb sheet 10.

[0127] In this embodiment, the gap in the delivery interval is reduced compared to the gap in the loading interval, and the reduction rate does not exceed 30% (the gap in the loading interval is 1.9 cm and the gap in the delivery interval is 1.4 cm), and the surfaces of each friction wheel 1213, 1214 used for gripping are rough, which provides a friction effect, so that when the cushioning molded core material 1 passes through the delivery interval, the average bending deformation of the intermediate section 13 is substantially less than 10%, the impact resistance of the substantially hexagonal honeycomb body is not lost, and the cushioning function of the cushioning material is not affected. Preferably, to reduce the changes in the directly bent intermediate section 13, the gap in the delivery interval is controlled to less than 60% of the height of the sheet 10 along the height direction Z.

[0128] In this embodiment, there is an auxiliary pressing and conveying step between the loading step and the molding step. The rolling unit 1002 further includes an auxiliary friction wheel set, which includes an upper auxiliary roller friction wheel 1215 mounted between the first upper roller friction wheel 1211 and the second upper roller friction wheel 1213, and a lower auxiliary roller friction wheel 1216 mounted between the first lower roller friction wheel 1212 and the second lower roller friction wheel 1214. The upper auxiliary roller friction wheel 1215 and the lower auxiliary roller friction wheel 1216 are arranged and rotate along the height direction Z. An auxiliary gap is defined between the upper auxiliary roller friction wheel 1215 and the lower auxiliary roller friction wheel 1216. The auxiliary gap is positioned between the gap in the loading gap and the gap in the delivery gap and is provided to create conditions for more stable pressing and conveying of the cushioning material. In this embodiment, the gap in the auxiliary spacing between the upper auxiliary roller friction wheel 1215 and the lower auxiliary roller friction wheel 1216 in the height direction is 1.7 cm. In other words, during the loading stage, the cushion molding core material 1 is pressed and transported into the gap in the loading spacing which is smaller than the height of the sheet 10 along the height direction Z and larger than 70% of the height of the sheet 10 along the height direction Z, and during the auxiliary pressing and transport process, it enters the auxiliary spacing, and is then pressed and transported again into the gap in the auxiliary spacing which is smaller than the gap in the loading spacing along the height direction Z, and finally, during the molding stage, it is pressed and transported into the gap in the delivery spacing which is smaller than the auxiliary spacing along the height direction Z and larger than 60% of the height of the sheet 10 along the height direction Z. The gap in the loading interval is from 90% to 95% of the height of the sheet 10 along the height direction Z, the gap in the auxiliary pressure loading interval is from 80% to 85% of the height of the sheet 10, and the gap in the delivery interval is from 70% to 75% of the height of the sheet 10. In this embodiment, the height of the sheet 10 along the height direction Z is 2.0 cm.The gap in the loading interval is less than 2.0 cm but greater than 1.4 cm, preferably between 1.8 cm and 1.95 cm. In this embodiment, the gap in the loading interval is 1.9 cm. The gap in the auxiliary interval is preferably between 1.6 cm and 1.9 cm, but it is essential that it is smaller than the gap in the loading interval. In this embodiment, the gap in the auxiliary interval is 1.7 cm. The gap in the delivery interval is greater than 1.2 cm but smaller than the gap in the auxiliary interval and the gap in the loading interval. In this embodiment, the gap in the delivery interval is 1.4 cm. The gaps in the loading interval, the auxiliary interval and the delivery interval are gradually reduced, but the reduction rate of adjacent gaps does not exceed 30%. Preferably, the gap in the loading interval is between 90% and 95% of the height of the sheet 10 along the height direction Z. The gap in the auxiliary pressing and conveying interval is 80% to 85% of the height of the sheet 10 along the height direction Z, and the gap in the discharge interval is 70% to 75% of the height of the sheet 10 along the height direction Z.

[0129] Referring to Figure 13 in relation to the rebound stage, after the cushion molded core material 1 has passed through the loading interval, the auxiliary interval and the delivery interval, the sheet 10 can rebound so that the sheet 10 returns to its original shape, and its top and bottom portions have the rigidity to maintain the structure of the cushion molded core material 1. At this point, the overall average height of the cushion molded core material 1 is restored to 1.7 cm to 1.8 cm, which is about 80% to 90% of the original height. From each roughly hexagonal honeycomb body, it may appear that the four unjointed portions 12 and the two thick laminated walls 15 are in a bent state. In other words, the top and bottom portions of each thick laminated wall 15 are formed into two bent deformed ends 17 that extend from the two opposing ends of the intermediate section 13, respectively. In each of the non-jointed portions 12, the top and bottom of the non-jointed portion 12 are formed into two bent deformation ends 17, and the length of each bent deformation end 17 of the thick laminated wall 15 does not differ significantly from the length of each bent deformation end 17 of the non-jointed portion 12 due to the difference in rigidity between the two. Compared to each intermediate section 13 of the cushioning molded core material 1 that has not gone through the loading stage, the molding stage, and the rebound stage, the average deformation of each intermediate section 13 of the jointed portion 11 is less than 10%. In each of the thick laminated wall 15 or the non-jointed portion 12, the average length of each bent deformation end 17 is substantially between 0.1 cm and 0.3 cm, and the average total length of the top and bottom of the bent deformation end 17 is between 10% and 30% of the length of the sheet 10 along the height direction Z. Each bent deformation end 17 is bent along the bending angle with respect to the intermediate section 13, and the bending angle therein will not differ due to the impact of the pressing, conveying, and rubbing processes and the final restoration of partial deformation, but it will not be perfectly parallel to the intermediate section 13. The majority of the sheet 10 will elastically restore after the pressing is completed, and the entire top or bottom side of the cushioning molded core material 1 will remain substantially flat after being expanded.

[0130] Therefore, this disclosure provides a cushioning packaging material. The cushioning material is formed by spreading and molding the cushioning molded core material 1, and the cushioning material comprises a plurality of sheets 10 extending along the width direction Y. Each of the sheets 10 has a plurality of joint portions 11 and a plurality of non-joint portions 12. The non-joint portions 12 and the joint portions 11 are offset from each other along the width direction Y. The joint portions 11 of two adjacent sheets 10 are combined with each other, and the thick laminated wall 15 is formed at the joints of each of the joint portions 11. For each pair of adjacent sheets 10, the thick laminated wall 15 and the non-joint portions 12 are formed into a plurality of substantially hexagonal honeycomb bodies. In each of the substantially hexagonal honeycomb bodies, the four non-jointed portions 12 form four side portions having substantially equal lengths perpendicular to the height direction Z, and the two thick laminated walls 15 form two other side portions having substantially equal lengths perpendicular to the height direction Z, and the length of each of the jointed portions 11 perpendicular to the height direction Z is not greater than 60% of the length of each of the non-jointed portions 12 perpendicular to the height direction Z. Preferably, the length of each of the jointed portions 11 perpendicular to the height direction Z is between 10% and 45% of the length of each of the non-jointed portions 12 perpendicular to the height direction Z. After the cushioning molded core material 1 expands and opens, the bent deformation ends 17 of each of the thick laminated walls 15 and each of the bent deformation ends 17 of the non-jointed portions 12 are continuous, and the total average length of the bent deformation ends 17 is between 10% and 30% of the length of the sheet along the height direction Z. The average bending deformation of the intermediate section 13 is substantially less than 10%. The bent deformation end 17 is provided to maintain the cushioning molding core 1 in an elongated state for forming the cushioning packaging material. Each of the unjointed portions 12 further has a thin unlaminated wall 14 positioned between the bent deformation ends 17. Each of the thick laminated walls 15 has an embossed area 16 formed at the bent deformation end 17.After the rolling unit 1002 has formed the bent deformation end 17 of the thick laminated wall 15, the embossed area 16 is stamped and formed, which can make the shape more stable after rebound.

[0131] <Eighth aspect of the invention>

[0132] Several embodiments are provided as the eighth aspect (wherein reference numerals / symbols / descriptions in parentheses indicate corresponding features of the exemplary embodiments disclosed in the drawings, are illustrative, and are not limiting the invention to these embodiments; the same applies hereinafter):

[0133] <28> The cushioning packaging material is shaped and formed by expanding a cushioning molded core material (1), the cushioning molded core material comprising a plurality of strip-shaped sheets (10) each extending in the width direction (Y), and the sheets are stacked in the length direction (X) perpendicular to the width direction (Y). Each sheet has a plurality of joining portions (11) and a plurality of non-joining portions (12) arranged alternately in the width direction (Y), The joining portion (11) of each sheet, excluding the surface sheet and bottom sheet in the expansion and contraction direction, consists of a first joining portion (11a) and a second joining portion (11b) arranged alternately in the width direction (Y), wherein the first joining portion (11a) of the sheet is joined to the second joining portion (11b) of an adjacent sheet, and the second joining portion (11b) of the sheet is joined to the first joining portion (11a) of another adjacent sheet. Each of the joint portions (11) constitutes a thick laminated wall (15), while the non-joint portion (12) constitutes a thin non-laminated wall (14). The aforementioned cushioning molded core material (1) expands in the longitudinal direction (X), where: The thick laminated walls (15) and non-joint portions (12) in each adjacent pair of sheets form a plurality of substantially hexagonal honeycomb bodies, each substantially hexagonal honeycomb body consisting of a first joint portion (11a) and two non-joint portions (12) of one of the pair of sheets, and a second joint portion (11b) and two non-joint portions (12) of the other sheet of the pair, and each thick laminated wall (15) consists of a top section (17a), an intermediate section (13), and a bottom section (17b) along the height direction (Z) perpendicular to both the width direction (Y) and the length direction (X). Each of the thick laminated walls (15) has a top section (17a) and a bottom section (17b) formed with a bent deformation end (17) that bends in the height direction (Z). Each thin non-laminated wall (14) is composed of a top section (17c), an intermediate section (18), and a bottom section (17d) along the height direction (Z), and each of the top section (17c) and bottom section (17d) of the thin non-laminated wall (14) has a bent deformation end (17) formed that bends with respect to the height direction (Z). The bent deformation end (17) prevents the collapse of the hexagonal honeycomb structure in order to maintain the cushioning molded core material (1) in an expanded state.

[0134] <29> The aforementioned cushioning packaging material is <28> In this case, the sheet has a density of approximately 80 g / m². 2 Approximately 200g / m 2 It is made from a biodegradable fibrous material having a basic weight up to approximately 0.08 mm to approximately 0.2 mm, a length along the width direction (Y) from approximately 10 cm to approximately 80 cm, and a length along the height direction (Z) from approximately 1 cm to approximately 6 cm, wherein the length of each of the unjointed portions (12) along the width direction (Y) is approximately 0.5 cm to approximately 5 cm, and the length of each of the jointed portions (11) in the width direction is approximately 10% to approximately 45% of the length of each of the unjointed portions (12) in the width direction (Y).

[0135] <30> The aforementioned cushioning packaging material is <28> In this configuration, each thick laminated wall (15) has an embossed region (16) formed at each bent deformation end (17).

[0136] <31> The aforementioned cushioning packaging material is <28> In this configuration, the length of each joint portion (11) of each sheet in the width direction (Y) is greater than approximately 5% of the total length of the two non-joint portions (12) adjacent to the joint portion in the width direction (Y), but not greater than approximately 60% of that total length.

[0137] <32> The aforementioned cushioning packaging material is <28> In this configuration, the lengths of the top section (17a, 17c) and bottom section (17b, 17d) of each of the substantially hexagonal honeycomb bodies, which are bent and deformed in the height direction (Z), are approximately 5% or greater of the total height of each sheet (10) in the height direction (Z), but not greater than approximately 15% of its total height.

[0138] <33> The aforementioned cushioning packaging material is <28> In this configuration, the top section (17a) and bottom section (17b) of each jointed portion (11), and the top section (17c) and bottom section (17d) of each non-jointed portion (12) have notches (19) in the height direction.

[0139] <Ninth aspect of the invention>

[0140] Several embodiments are provided as a ninth aspect:

[0141] <34> The cushioning molded core material is manufactured to form a cushioning packaging material that has been shaped and molded by expanding the cushioning molded core material, and comprises a plurality of strip-shaped sheets (10) each extending in the width direction (Y), and the sheets are stacked in the length direction (X) perpendicular to the width direction (Y), Each sheet has a plurality of joining portions (11) and a plurality of non-joining portions (12) arranged alternately in the width direction (Y), The joining portion (11) of each sheet, excluding the surface sheet and bottom sheet in the expansion and contraction direction, consists of a first joining portion (11a) and a second joining portion (11b) arranged alternately in the width direction (Y), wherein the first joining portion (11a) of the sheet is joined to the second joining portion (11b) of an adjacent sheet, and the second joining portion (11b) of the sheet is joined to the first joining portion (11a) of another adjacent sheet. Each joint (11) is composed of a top section (17a), an intermediate section (13), and a bottom section (17b) along the height direction (Z) which is perpendicular to both the width direction (Y) and the length direction (X). Each non-jointed portion (12) is composed of a top section (17c), an intermediate section (18), and a bottom section (17d) along the height direction (Z), The top section and bottom section of each jointed portion, and the top section and bottom section of each non-jointed portion, each have a notch (19) in the height direction.

[0142] <35> The aforementioned cushioning molded core material is <34> In this configuration, the depth of the notches (19) in the top sections (17a, 17c) and bottom sections (17b, 17d) in the height direction (Z) is approximately 5% or greater than the total height of each sheet (10) in the height direction (Z), but not greater than approximately 15% of the total height.

[0143] <Tenth aspect of the invention>

[0144] Several embodiments are provided as a tenth aspect:

[0145] <36> <28> The apparatus for molding the aforementioned cushioning packaging material is: A chassis (109) having an entrance (110) for guiding and loading the cushioning molded core material (1), and an exit (120) disposed opposite the entrance (110) for discharging the cushioning packaging material (100), A transport path (33) is enclosed within the chassis (109) so that the cushioning molded core material (1) can pass through, It comprises a drive unit (20), The transport path includes (a) a wide path (331) connected to the downstream side of the entrance (110) and a narrow path (332) connected to the downstream side of the wide path (331) and leading to the upstream side of the exit (120), wherein the wide path (331) has a height greater than the height of the narrow path (332) in the vertical axis direction, and the height of the transport path (33) decreases in the vertical axis direction from the wide opening (331) to the narrow opening (332), and (b) the chassis ( ) has a lower roller set (31, lower roller 313) and an upper roller set (32, upper roller 324) mounted above the lower roller set (31). 109) includes a rolling unit (30) attached thereto, wherein the rolling unit (30) constitutes the transport path (33), and the distance between the lower roller set (31) and the upper roller set (32) is arranged to correspond to the height of the wide path (331) and the height of the narrow path (332), and therein the cushioning molded core material (1) expands in the transport direction which is the length direction (X) of the cushioning molded core material as it is transported through the transport path (33) to form the substantially hexagonal honeycomb body, and then presses in the vertical axis direction which is the height direction (Z) of the cushioning molded core material to form the bent deformed end (17), The drive unit (20) drives the rolling unit (30) in order to drive the lower roller set (31) and the upper roller set (32).

[0146] <37> The molding apparatus for the aforementioned cushioning packaging material, <36> The device further includes a tear / cut unit (50) attached to the upstream side of the discharge port (120) and the downstream side of the rolling unit (30), the tear / cut unit (50) including a tear / cut drive unit (51) and a plurality of insert rods (53) or knife blades driven by the tear / cut drive unit (51), the tear / cut drive unit (51) drives the insert rods (53) or knife blades to tear or cut the cushion packaging material along a direction perpendicular to the conveying direction at intervals in the conveying direction while the cushion molding core material (1) is continuously conveyed and pressed by the rolling unit (30), and thus the torn / cut pieces of the cushion packaging material (100) are discharged from the discharge port (120).

[0147] <38> The molding apparatus for the aforementioned cushioning packaging material, <37> In this configuration, the tearing unit (50) further includes a sensor unit (54) for detecting whether the insert rod (53) leaves the transport path (33) or whether the insert rod (53) returns to its original position.

[0148] <39> The molding apparatus for the aforementioned cushioning packaging material, <37> In this configuration, the upper roller set (32) of the rolling unit (30) is adjustablely mounted on the chassis (109) to adjust the corresponding height of the transport path (33) along the vertical axis direction. The upper roller set (32) includes two upper fixing blocks (321), two upper positioning plates (322), a plurality of locking parts (323) for locking the upper positioning plates (322) to the upper fixing blocks (321), and a plurality of upper rollers of the upper roller set (32) that are axially mounted on the upper positioning plates (322), and Each upper fixing block (321) has two arc-shaped slots (326) spaced apart from each other and aligned in the transport direction, and the locking portion (323) is mounted by passing through the upper positioning plate (322) and the arc-shaped slots (326).

[0149] <40> The molding apparatus for the aforementioned cushioning packaging material, <39> In this, the lower roller set (31) of the rolling unit (30) includes two pairs of lower fixing blocks (311), two lower positioning plates (312) fixed to the lower fixing blocks (311), a plurality of lower rollers of the lower roller set (31) mounted axially on the lower positioning plates (312), and a plurality of guide rods (314) connected to the lower fixing blocks (311) and extending in the vertical axis direction. The upper fixing block (321) further includes two guide holes (327) through which the corresponding guide rod (314) is slidably passed, and Each of the upper roller sets (32) further includes a plurality of locking screws (325) for locking the upper fixing block (321) onto the guide rod (314).

[0150] <41> The molding apparatus for the aforementioned cushioning packaging material, <36> The present invention further includes a push unit (40) attached to the downstream side of the loading entrance (110) and the upstream side of the transport path (33) in the chassis (109), Here, the pressing unit (40) includes a rotor (41) that is rotatable on a single axis perpendicular to the transport direction and driven by the drive unit (20), and a plurality of pins (42) attached to the rotor (41) at regular intervals around the rotor (41), wherein the cushioning molded core material (1) is transported into the transport path (33) such that the pins (42) can be inserted into the gap between two adjacent sheets for pressing the corresponding sheets.

[0151] <42> The molding apparatus for the aforementioned cushioning packaging material, <36> In this configuration, the cushioning molded core material (1) brought into the entrance (110) has an original height in the vertical axis direction that is not greater than the height at which it was brought in via the wide path (331) of the transport path (33) in the vertical axis direction, and the original height is greater than the height at which it was discharged via the narrow path (332) of the transport path (33) in the vertical axis direction.

[0152] <Eleventh aspect of the invention>

[0153] Several embodiments are provided as eleventh aspects:

[0154] <43> The method for forming the cushioning packaging material involves expanding the cushioning molding core material. <28> The method for forming the aforementioned cushioning packaging material is, To provide or supply the aforementioned cushioning molded core material, The cushioning molded core material (1) is transported into a transport path (33) which includes a wide path (331) and a narrow path (332) downstream of the wide path (331), wherein, in the vertical axis direction, the wide path (331) has a height greater than the height of the narrow path (332), and the height of the transport path (33) decreases in the vertical axis direction from the wide opening (331) to the narrow opening (332), and a rolling unit consisting of an upper roller set (32) and a lower roller set (31) included in the transport path (33) is arranged such that the distance between the lower roller set (31) and the upper roller set (32) corresponds to the height of the wide path (331) and the height of the narrow path (332). The cushioning molded core material (1) is transported through the transport path (33), thereby (i) Using the components of the upper roller set (32) and the lower roller set (31) in the wide path (331), the cushion molding core material (1) is expanded in the transport direction which is the longitudinal direction of the cushion molding core material, and the substantially hexagonal honeycomb body is formed, and (ii) Using the components of the upper roller set (32) and the lower roller set (31) in the narrow path (332), press the cushion molding core material (1) in the vertical axis direction which is the height direction of the cushion molding core material, and form the bent deformed end, and This includes transporting the substantially hexagonal honeycomb body having the bent and deformed ends out of the transport path (33) as the cushioning packaging material.

[0155] <44> The method for molding the aforementioned cushioning packaging material is: <43> The present invention further includes, while the cushioning molded core material (1) is continuously conveyed and pressed by the rolling unit (30), tearing or cutting the cushioning packaging material at intervals in the conveying direction and along a direction perpendicular to the conveying direction at a position downstream of the conveying path, thereby transporting out the torn / cut pieces of the cushioning packaging material (100).

[0156] <45> The method for molding the aforementioned sheet cushioning packaging material is: <43> In this case, the sheet is 80 g / m² 2 From 200g / m 2 It is made from selected fiber material and has a thickness of 0.08 mm to 0.2 mm, a width along the horizontal axis of 10 cm to 80 cm, a height along the vertical axis of 1 cm to 6 cm, and a gap between every two sheets at the joint portion of 0.5 cm to 5 cm.

[0157] <46> The method for molding the aforementioned sheet cushioning packaging material is: <45> In the loading stage, the upper and lower roller sets have a relative loading height equal to 90% to 100% of the sheet's height along the vertical axis, and in the shaping stage, the upper and lower roller sets have a relative unloading height equal to 60% to 89.9% of the sheet's height along the vertical axis.

[0158] <47> The method for molding the aforementioned sheet cushioning packaging material is: <43> In this configuration, the cushioning molded core material (1) is transported into the transport path (33) and pushed into the transport path (33) by using a plurality of pins (1032, 42) attached at regular intervals around a rotating rotor (1031, 41), wherein the pins (1032, 42) are inserted into the gap between two adjacent sheets of the cushioning molded core material and are pushed into the transport path (33) by the rotation of the rotor (1031, 41).

[0159] The eighth to eleventh aspects described above are explained below:

[0160] The eighth aspect of the invention clarifies some features of the cushioning packaging material. As shown in Figure 9, the cushioning packaging material is formed by expanding a cushioning molded core material (1). However, since the strip-shaped sheets (10) have bending strength, they can function as a packaging material (for example, to protect an object by absorbing shock and to apply stress to the object during transport), and when the cushioning molded core material (1) is formed by expanding a plurality of the strip-shaped sheets laminated on the expansion axis (X), it is difficult to maintain the expanded state, that is, the expanded core material tends to return from the expanded state to its original unexpanded state due to the elastic force of the sheets. However, when the sheet has bent deformation ends (17a, 17c, 17b, 17d, Figures 12-14) at the top and bottom sections of the sheet in the height direction (Z), the bent deformation ends effectively resist the elastic force of the sheet, allowing the expanded cushioning molded core to return to its original state, and thus the expanded cushioning molded core can remain expanded. With the above structure, a suitable cushioning packaging material can be provided.

[0161] In some embodiments, the cushioning molded core material is composed of identical strip-shaped sheets stacked on the expansion axis, and joint portions are bonded and molded between adjacent sheets.

[0162] To form a suitable cushioning packaging material, the shape of the substantially hexagonal honeycomb body may be adjusted. The shape of the substantially hexagonal honeycomb body can be defined by determining the ratio of the length of the joint portion to the length of the non-joint portion of the substantially hexagonal honeycomb body, i.e., W2 / (W1+W3), where W1 is the length of the non-joint portion (12) of the sheet between the joint portion (11a) that joins to an adjacent sheet on one side of the sheet and the joint portion (11b) that joins to an adjacent sheet on the other side of the sheet in the width direction (Y), and W2 is W3 is the length of the joining portion (11a) and the length of the other non-joining portion (12), where the joining portion (11a) is sandwiched between the non-joining portion (12) and the other non-joining portion (12) (see Figure 9, the joining portion (11a) in the figure), joining the sheet to the adjacent sheet on the back side surface of the sheet, and is shown as a solid line, while the joining portion (11b) joins the sheet to the adjacent sheet on the front side surface of the sheet, and is shown as a dashed line. In some embodiments, the ratio of W2 / (W1+W3) is 5% or greater and 60% or less, preferably 10% or greater but not greater than 50%.

[0163] As described above, the bent deformation ends of the sheet are important for maintaining the expanded state of the cushioning molded core material in order for it to function as a cushioning packaging material. For the above purpose, the length of the top and bottom bent deformation ends (Hb, see Figure 12) may be between 3% and 20% of the total length of the sheet (Ha + 2Hb, where Ha is the length of the intermediate section, see Figure 12), i.e., 3% ≤ Ha / (Ha + 2Hb) ≤ 20%, and preferably between 5% and 10%, i.e., 5% ≤ Ha / (Ha + 2Hb) ≤ 10%. The length of the top bent deformation end and the length of the bottom bent deformation end do not have to be the same, but they may be different. The ratio Ha / (Ha + 2Hb) applies not only to the joint portion but also to the non-joint portion. The ratio of the joint portion and the ratio of the non-joint portion do not have to be the same, but they may be different. The above values ​​are average values ​​or majority values ​​and can vary significantly depending on the unique shape of each honeycomb, and may include parts that do not satisfy the above range as long as the expanded state of the honeycomb is maintained. In some embodiments, the cushioning molded core has a structure that allows the cushioning molded core, in its original non-expanded (stacked) state, to expand in the expansion direction along with the expansion force, but when the expansion force is released in the expansion direction without a bent deformation end, it can elastically return to the original stacked state by its own elastic properties (unless the cushioning molded core expands beyond the collapse point or yield point after the start of plastic deformation). In other words, in some embodiments, the cushioning molded core has no structure or mechanism other than the bent deformation end and remains expanded in the expanded state in the elastic region of the cushioning molded core.

[0164] The bent deformation end functions as a stopper to prevent the expanded cushioning molded core material from returning to its original stacked state. For this purpose, preferably, the bending angle of the bent deformation end with respect to the height axis (Z axis) (see Figure 12, θ) is between approximately 5° and approximately 100°, between approximately 10° and approximately 85°, between approximately 30° and approximately 80°, or any range interspersed therein.

[0165] The ninth aspect described above has been made in view of a cushioning molded core material having notches (also called perforations), wherein the top section and bottom section of each jointed portion and the top section and bottom section of each non-jointed portion each have notches (19) in the height direction (Z) that are perpendicular to both the width direction (Y) and the length direction (X).

[0166] In some embodiments, the notches are formed in both the top and bottom sections of each joint and each non-joint portion, as shown in Figure 16.

[0167] Preferably, the depth of the notches (19, Figure 15) in the top and bottom sections in the height direction is about 3% of the total height of each sheet (10) in the height direction, or greater, but not greater than about 20% of the total height (for example, from about 5% to about 15%, and from about 8% to 12%).

[0168] The number of notches is not limited, but it is preferable to have one or more notches (usually one notch) on each side of the approximately hexagonal honeycomb body. Furthermore, the notches may be provided only on a portion of the approximately hexagonal honeycomb body. In addition, one or more notches may be provided as perforations arranged linearly in the height direction.

[0169] The notches (19) in the cushioning packaging material (100) provide flexibility of the cushioning packaging material around the expansion axis X. As shown in Figure 17, when the cushioning packaging material is bent around the expansion axis X, the portion between the top section and the bottom section of each joint and each non-joint portion, when force is applied, bends inward (see region 91 in Figure 17) or outward (see region 92 in Figure 17) relative to a single honeycomb body, due to the notches, resulting in the least resistance to bending (mechanically weakest). As a result, the cushioning packaging material can be easily bent not only around the expansion axis X but also around the width axis Y.

[0170] However, while the cushioning molded cores having notches can be effectively expanded with high productivity using a cushioning molding machine such as those described in this disclosure, they can also be expanded without a cushioning molding machine, for example, they can be easily expanded by hand or any expanding tool, and the bent deformed ends can be shaped by hand or any pressing tool to remain expanded. Due to the presence of the notches / perforations, the top and bottom sections of the expanded cushioning molded core in the height direction can be easily bent by pressing the ends with a fingertip. The ability of the top and bottom sections to resist bending forces can be significantly reduced by the notches, preventing the ends from elastically returning to their original state. Thus, once the top and bottom sections have been bent and deformed by a fingertip or any other pressing tool, the bent deformed ends can remain bent. Accordingly, the expanded state of the cushioning molded core, i.e., the cushioning packaging material, can remain expanded.

[0171] The tenth embodiment described above is made in view of an apparatus for molding cushioning packaging material, and the eleventh embodiment described above is made in view of a method for molding cushioning packaging material. In these embodiments, some features are clearer than those discussed in the other embodiments. However, the essential features are common and interchangeable, and therefore the description of these embodiments is omitted. A skilled craftsman can readily provide conditions and / or structures that are omitted as matters of routine experimentation in light of this disclosure.

[0172] In all of the disclosed embodiments, any element used in one embodiment can be replaced with any equivalent element, and for the intended purpose, what is explicitly, necessarily, or inherently disclosed herein is included. In some embodiments of this disclosure, the material / composition constituting a cushioning packaging material, a cushioning molded core, a strip sheet, etc., may consist only of the essential / expressed elements described herein, however, “consist only of” does not exclude additional elements known to be equivalent to the elements and / or unrelated elements, such as impurities that are typically associated with the elements. Furthermore, in some embodiments, known elements used in the art are not mentioned, and such known elements may be explicitly excluded from the embodiments. Similarly, in some embodiments, any two numbers of a variable may constitute the working range of that variable, the working range may be determined on a routine basis, and any indicated range may include or exclude the endpoints. In addition, all values ​​of the variables shown (whether they are shown with "approximately" or not) may refer to exact values ​​or approximate / rounded values, and may include equivalents, and in some embodiments may represent mean, median, representative, majority, etc. Furthermore, in this disclosure, unspecified singular nouns [even if the indefinite article "a" is not translated] may represent one or more kinds, while plural forms [even if not translated as plural] may not exclude the singular depending on the context.

[0173] This application claims priority to U.S. Provisional Patent Application No. 63 / 639288 filed on 26 April 1997, U.S. Provisional Patent Application No. 63 / 714292 filed on 31 October 2024, and U.S. Patent Application No. 19 / 005654 filed on 30 December 2024, the disclosures thereof incorporated herein by reference in their entirety. [Industrial applicability]

[0174] The invention disclosed herein can be applied, for example, to logistics-related industries such as the manufacture of cushioning packaging materials to protect objects inside boxes from collisions, damage, and other incidents during transport. [Explanation of symbols]

[0175] 1. Cushioning molded core material 10 Strip-shaped sheets 11 Joint part 12 Unconnected parts 11a First joint 11b Second joint 15 thick laminated wall 14 Thin, non-laminated walls 13. Intermediate Section 17 Bent deformed end 18. Intermediate Section 16 Embossing area 17a Top section 17c Top section 17b Bottom section 17d Bottom section 19 cuts 109 Chassis 110 Loading entrance 120 Exit 100 Cushioning packaging material 33. Transport Route 331 Wide Route 332 Narrow Route 30 Rolling Units 31 Lower roller set 313 Lower Roller Set 32 Upper roller set 324 Upper Roller Set 20 Drive Unit 50 tearing units 51 Tear-pulling drive unit 53 Insert Rods 54 Sensor section 321 Upper fixing block 322 Upper positioning plate 323 Locking section 326 Two arc-shaped slots 311 Lower fixing block 312 Lower positioning plate 314 Guide Rod 327 Guide holes 325 Locking Screw 40 Push-in unit 1032 pins 42 pins 1031 Rotor 41 Rotor

Claims

1. A cushioning packaging material formed and molded by expanding a cushioning molded core material, wherein the cushioning molded core material comprises a plurality of strip-shaped sheets each extending in the width direction, and the sheets are stacked in the length direction perpendicular to the width direction. Each sheet has a plurality of joining portions and a plurality of non-joining portions arranged alternately in the width direction. Excluding the surface sheet and bottom sheet in the expansion and contraction direction, the joining portion of each sheet consists of a first joining portion and a second joining portion arranged alternately in the width direction, wherein the first joining portion of one sheet is joined to the second joining portion of an adjacent sheet, and the second joining portion of one sheet is joined to the first joining portion of another adjacent sheet. Each of the aforementioned joint portions constitutes a thick laminated wall, while the aforementioned non-joint portions constitute a thin non-laminated wall. The aforementioned cushioning molded core material expands in the longitudinal direction, The thick laminated wall and the non-joint portion in each adjacent pair of sheets form a plurality of substantially hexagonal honeycomb bodies, each substantially hexagonal honeycomb body consisting of a first joint portion and two non-joint portions of one sheet of the pair, and a second joint portion and two non-joint portions of the other sheet of the pair. Each thick laminated wall is composed of a top section, an intermediate section, and a bottom section along the height direction perpendicular to both the width and length directions, and each thick laminated wall has a bent deformation end formed in the top section and the bottom section that bends in the height direction. Each thin non-laminated wall is composed of a top section, an intermediate section, and a bottom section along the height direction, and each of the top section and bottom section of the thin non-laminated wall has a bent deformation end formed that bends in the height direction. The aforementioned bent deformation end prevents the collapse of the hexagonal honeycomb structure in order to maintain the cushioning molded core material in an expanded state, thereby providing a cushioning packaging material.

2. The aforementioned sheet weighs approximately 80 g / m². ２ Approximately 200g / m ２ It is made from a biodegradable fibrous material having a basic weight up to approximately 0.08 mm to approximately 0.2 mm, a length along the width direction from approximately 10 cm to approximately 80 cm, and a length along the height direction (Z) from approximately 1 cm to approximately 6 cm. The length of each of the non-jointed portions along the width direction is approximately 0.5 cm to approximately 5 cm. The cushioning packaging material according to claim 1, wherein the length of each of the jointed portions in the width direction is approximately 10% to approximately 45% of the length of each of the non-jointed portions in the width direction.

3. The cushioning packaging material according to claim 1, wherein each thick laminated wall has an embossed area formed at each bent deformation end.

4. The cushioning packaging material according to claim 1, wherein the length of each joint portion of each sheet in the width direction is greater than approximately 5% of the total length of the two non-joint portions adjacent to the joint portion in the width direction, but not greater than approximately 60% of the total length.

5. The cushioning packaging material according to claim 1, wherein the lengths of the top section and bottom section of each of the substantially hexagonal honeycomb bodies that are bent and deformed in the height direction are about 5% or greater than the total height of each sheet in the height direction, but not greater than about 15% of the total height.

6. The cushioning packaging material according to claim 1, wherein the top section and bottom section of each jointed portion and the top section and bottom section of each non-jointed portion have notches in the height direction.

7. A cushioning molded core material, manufactured for forming a cushioning packaging material formed by expanding the cushioning molded core material, comprising a plurality of strip-shaped sheets each extending in the width direction, wherein the sheets are stacked in the length direction perpendicular to the width direction, and here Each sheet has a plurality of joining portions and a plurality of non-joining portions arranged alternately in the width direction. The joining portion of each sheet, excluding the surface sheet and bottom sheet in the expansion and contraction direction, consists of a first joining portion and a second joining portion arranged alternately in the width direction, wherein the first joining portion of the sheet is joined to the second joining portion of an adjacent sheet, and the second joining portion of the sheet is joined to the first joining portion of another adjacent sheet. Each joint is composed of a top section, an intermediate section, and a bottom section along the height direction perpendicular to both the width direction and the length direction, and Each non-jointed section is composed of a top section, an intermediate section, and a bottom section along the height direction. Herein, the top section and bottom section of each jointed portion and the top section and bottom section of each non-jointed portion each have notches in the height direction, wherein the cushioning molded core material.

8. The cushioning molded core material according to claim 7, wherein the total depth of the cuts in the top section and the bottom section in the height direction is in the range of about 5% to about 15% of the total height of each sheet in the height direction.

9. A molding apparatus for forming the cushioning packaging material according to claim 1, A chassis having an entrance for guiding and loading the cushioning molded core material, and an exit disposed opposite the entrance for discharging the cushioning packaging material, and a transport path enclosed within the chassis so that the cushioning molded core material can pass through, Equipped with a drive unit, The transport path includes (a) a wide path connected to the downstream side of the entrance and a narrow path connected to the downstream side of the wide path and leading to the upstream side of the exit, wherein the wide path has a height greater than the height of the narrow path in the vertical axis direction, and the height of the transport path decreases from the wide opening to the narrow opening in the vertical axis direction, and (b) a rolling unit attached to the chassis having a lower roller set and an upper roller set mounted above the lower roller set, wherein the rolling unit constitutes the transport path, and the distance between the lower roller set and the upper roller set is arranged to correspond to the height of the wide path and the height of the narrow path, and further, the cushioning molded core material expands in the transport direction, which is the length direction of the cushioning molded core material, to form the substantially hexagonal honeycomb body while being transported through the transport path, and then is pressed in the vertical axis direction, which is the height direction of the cushioning molded core material, to form the bent deformed end, A molding apparatus for cushioning packaging material, wherein the drive unit drives the rolling unit in order to drive the lower roller set and the upper roller set.

10. The apparatus for forming a cushioning packaging material according to claim 9, further comprising a tear / cut unit attached to the upstream side of the discharge port and the downstream side of the rolling unit, wherein the tear / cut unit includes a tear / cut drive unit and a plurality of insert rods or knife blades driven by the tear / cut drive unit, and the tear / cut drive unit drives the insert rods or knife blades to tear or cut the cushioning packaging material in a direction perpendicular to the conveying direction at intervals in the conveying direction while the cushioning molding core material is continuously conveyed and pressed by the rolling unit, thereby discharging torn / cut pieces of the cushioning packaging material from the discharge port.

11. The molding apparatus for cushioning packaging material according to claim 10, wherein the tearing unit further includes a sensor unit for detecting whether the insert rod leaves the transport path or whether the insert rod returns to its original position.

12. The upper roller set of the rolling unit is adjustablely mounted to the chassis to adjust the corresponding height of the transport path along the vertical axis, The upper roller set includes two upper fixing blocks, two upper positioning plates, a plurality of locking parts for locking the upper positioning plates to the upper fixing blocks, and a plurality of upper rollers of the upper roller set mounted axially on the upper positioning plates. The molding apparatus for cushioning packaging material according to claim 9, wherein the locking portion is mounted by passing through the upper positioning plate and the arc-shaped slots such that each upper fixing block has two arc-shaped slots spaced apart from each other and aligned in the conveying direction.

13. The lower roller set of the rolling unit includes two pairs of lower fixing blocks, two lower positioning plates fixed to the lower fixing blocks, a plurality of lower rollers of the lower roller set mounted axially on the lower positioning plates, and a plurality of guide rods connected to the lower fixing blocks and extending in the vertical axis direction. The upper fixing block further includes two guide holes through which the corresponding guide rods are slidably passed, and The molding apparatus for cushioning packaging material according to claim 12, wherein each upper roller set further includes a plurality of locking screws for locking the upper fixing block to the guide rod.

14. The chassis further includes a pushing unit attached to the downstream side of the loading entrance and the upstream side of the transport path, The pressing unit includes a rotor rotatable on a single axis perpendicular to the transport direction and driven by the drive unit, and a plurality of pins attached to the rotor at regular intervals around the rotor, wherein the cushioning molding core is transported along the transport path such that the pins can be inserted into the gap between two adjacent sheets for pressing the corresponding sheets.

15. The cushioning molding core material brought into the loading port has an original height in the vertical axis direction that is not greater than the loading height in the wide path of the transport path in the vertical axis direction, and the original height is greater than the discharge height in the narrow path of the transport path in the vertical axis direction, according to the molding apparatus for cushioning packaging material according to claim 9.

16. A method for forming a cushioning packaging material according to claim 1 by expanding the cushioning molding core, wherein the cushioning molding method is: To provide or supply the aforementioned cushioning molded core material, The cushioning molded core material is transported into a transport path that includes a wide path and a narrow path downstream of the wide path, wherein, in the vertical axis direction, the wide path has a height greater than the height of the narrow path, and the height of the transport path decreases from the wide opening to the narrow opening in the vertical axis direction, and a rolling unit consisting of an upper roller set and a lower roller set, which is included in the transport path, is arranged such that the distance between the lower roller set and the upper roller set corresponds to the height of the wide path and the height of the narrow path. The cushioning molded core material is transported through the transport path, thereby (i) Using the components of the upper roller set and the lower roller set in the wide path, the cushion molding core material is expanded in the transport direction which is the length direction of the cushion molding core material, and the substantially hexagonal honeycomb body is formed, and (ii) Using the components of the upper roller set and the lower roller set in the narrow path, press the cushion molding core material in the vertical axis direction which is the height direction of the cushion molding core material, and form the bent deformed end, and A method for forming a cushioning packaging material, comprising transporting the substantially hexagonal honeycomb body having the bent deformed ends from the transport path as the cushioning packaging material.

17. A method for forming a cushioning packaging material according to claim 16, further comprising tearing or cutting the cushioning packaging material at intervals in the conveying direction and in a direction perpendicular to the conveying direction at a position downstream of the conveying path, while the cushioning molding core material is continuously conveyed and pressed by the rolling unit, thereby transporting the torn / cut pieces of the cushioning packaging material.

18. The aforementioned sheet is 80 g / m² ２ From 200g / m ２ A method for forming a sheet cushioning packaging material according to claim 16, which is made from selected fiber materials up to a certain point, having a thickness of 0.08 mm to 0.2 mm, a width along the horizontal axis of 10 cm to 80 cm, a height along the vertical axis of 1 cm to 6 cm, and a gap between every two sheets in the joint portion of 0.5 cm to 5 cm.

19. The method for forming a sheet cushion packaging material according to claim 18, wherein the upper and lower roller sets in the loading stage have a relative loading height equal to 90% to 100% of the height of the sheet along the vertical axis, and the upper and lower roller sets in the shaping stage have a relative unloading height equal to 60% to 89.9% of the height of the sheet along the vertical axis.

20. A method for forming a sheet cushion packaging material according to claim 16, further comprising using a plurality of pins mounted at regular intervals around a rotating rotor to transport the cushion molding core material into the transport path, the pins being inserted into the gaps between two adjacent sheets of the cushion molding core material, and the rotation of the rotor pushing the cushion molding core material forward along the transport path.

Images