Mattress packaging equipment, method and packaging production line

Abstract

The present invention discloses a mattress packaging device, method and packaging production line, wherein the mattress packaging device includes a feeding device and a folding and sealing device. The mattress packaging device can be used to package a mattress of relatively thin thickness. The mattress is placed on the first station, and the packaging material is unfolded and wrapped on the upper and lower surfaces of the mattress by the feeding device, and one end of the packaging material extends out of the lower surface of the mattress to form an extension; then the mattress is transported to the second station, and the extension is folded upward and wrapped on the upper surface of the mattress by the first folding mechanism of the folding and sealing device, and the folded extension is sealed by the transverse sealing mechanism, thereby achieving the sealing of the rear end of the mattress of relatively thin thickness. Compared with the existing mattress packaging equipment that needs to be sealed on the rear end surface of the mattress, the present equipment folds the packaging material on the upper surface of the mattress for sealing, which is convenient for packaging thin mattresses.

Description

Technical Field

[0001] The present invention relates to the field of mattress packaging, and in particular to a mattress packaging device, method and packaging production line. Background Art

[0002] At present, the packaging of mattresses is mainly done manually. In the related art, mattresses can be packaged through a mattress packaging production line, but the existing packaging machines are only suitable for packaging thicker mattresses, and there is no packaging equipment for thinner mattresses, such as mattresses with a thickness of 10 cm or less. Specifically, the existing packaging for thick mattresses is to form a sealing position on the rear end face and both sides of the thick mattress, but for thin mattresses, the mattress is thin, and it is difficult to form a sealing position on the rear end face or both sides. There is not enough space on the rear end face or both sides of the mattress for tape sealing. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a mattress packaging device capable of sealing the rear end of a mattress with a relatively thin thickness.

[0004] In addition, the present invention also proposes a mattress packaging production line having the above-mentioned mattress packaging equipment.

[0005] The present invention also provides a mattress packaging method, which can package a mattress with a relatively thin thickness.

[0006] According to a first aspect of the present invention, there is provided a mattress packaging device, comprising:

[0007] A feeding device having a first station for placing a mattress, the feeding device being used to unfold the packaging material and wrap it around the upper and lower surfaces of the mattress so that one end of the packaging material protrudes from the lower surface of the mattress and forms an extension portion; and

[0008] The folding and sealing device is arranged downstream of the feeding device, and includes a second workstation, a first folding mechanism and a transverse sealing mechanism. The first folding mechanism is arranged at the upstream end of the second workstation. The first folding mechanism is used to fold the extension part upward and wrap it around the upper surface of the mattress. The transverse sealing mechanism includes at least one first sealing component that can be moved laterally. The first sealing component is used to seal the folded extension part.

[0009] The above-mentioned mattress packaging equipment has at least the following beneficial effects: the mattress packaging equipment can be used to package a thinner mattress, the mattress is placed on the first station, the packaging material is unfolded and wrapped on the upper and lower surfaces of the mattress by the feeding device, and one end of the packaging material extends out of the lower surface of the mattress to form an extension; then the mattress is transported to the second station, the extension is folded upward and wrapped on the upper surface of the mattress by the first folding mechanism of the folding and sealing device, and the folded extension is sealed by the transverse sealing mechanism, so as to achieve the sealing of the rear end of the thinner mattress. Compared with the existing mattress packaging equipment that needs to be sealed on the rear end surface of the mattress, the present equipment folds the packaging material on the upper surface of the mattress for sealing, which is convenient for packaging thin mattresses.

[0010] According to the mattress packaging device described in the embodiment of the first aspect of the present invention, the first folding mechanism includes a first flipping assembly and a first folding piece. The first folding piece can be raised and lowered to fold the extension part upward for the first time. The first flipping assembly is used to drive the first folding piece to flip to fold the extension part for the second time so that the end of the extension part is wrapped on the mattress.

[0011] According to the mattress packaging device described in the embodiment of the first aspect of the present invention, the first folding mechanism also includes a roller, which is arranged to be raised and lowered and forms a first position and a second position, wherein in the first position, the roller is used to flatten the packaging material on the upper surface of the mattress; in the second position, the roller cooperates with the first folding member to clamp the extension portion.

[0012] According to the mattress packaging device described in the embodiment of the first aspect of the present invention, the transverse sealing mechanism also includes at least one pressure roller assembly and two material supporting members, wherein the pressure roller assembly is fixedly connected to the first sealing assembly and is arranged in front of the moving direction of the first sealing assembly, so as to move with the first sealing assembly and press the packaging material, the pressure roller assembly includes a pressure roller that can be raised and lowered; the material supporting member can be laterally moved to adjust the position and can be raised and lowered, and the material supporting member is used to support the packaging material on both sides of the mattress.

[0013] According to the mattress packaging device described in the embodiment of the first aspect of the present invention, the mattress packaging device also includes a first two-side fixing device, which is arranged downstream of the folding and sealing device, and the first two-side fixing device includes a third workstation, two second folding mechanisms arranged on both sides of the third workstation, two third folding mechanisms and two sealing devices, the second folding mechanism and the third folding mechanism are arranged up and down, wherein the second folding mechanism is used to fold the packaging material on the side of the mattress downward so that the packaging material on the corresponding side is attached to the side of the mattress; the third folding mechanism is used to fold the packaging material on the side of the mattress upward so that the packaging material on the corresponding side is folded upward; the sealing device includes at least one second sealing component, and the sealing device can be arranged to be laterally movably to fold the packaging material on the side of the mattress onto the upper surface of the mattress and seal it.

[0014] According to the mattress packaging device described in the embodiment of the first aspect of the present invention, the second folding mechanism includes a second flipping assembly and at least one second folding piece, and the second flipping assembly is used to drive the second folding piece to flip and form a first state and a second state, wherein in the first state, the first folding piece is horizontal; in the second state, the second folding piece is vertical so that the packaging material on the corresponding side fits the side of the mattress.

[0015] According to the mattress packaging device described in the embodiment of the first aspect of the present invention, the second folding mechanism also includes a fixing member, which is extended in the longitudinal direction and is used to compress and fix the mattress, and the second folding member is arranged on the outside of the fixing member.

[0016] According to the mattress packaging device described in the embodiment of the first aspect of the present invention, the third folding mechanism includes a third folding mechanism arranged on the outside of the second folding mechanism, the third folding mechanism includes at least one third folding member, the third folding member can be arranged to be raised and lowered, and the two third folding mechanisms can be arranged to move toward or away from each other.

[0017] According to the mattress packaging equipment described in the embodiment of the first aspect of the present invention, the first two-side fixing device also includes two movable frames arranged on both sides of the third workstation, the second folding mechanism and the sealing device on the corresponding side are installed on the movable frames on the corresponding sides, and the two movable frames can be arranged to be movable toward each other or backwards to adjust the distance between the two movable frames; the sealing device can be arranged on the movable frame to be movable by lifting and lowering, and the second folding mechanism can be arranged on the movable frame to be movable laterally and by lifting and lowering.

[0018] According to the mattress packaging equipment described in the embodiment of the first aspect of the present invention, the sealing device also includes a support member and a fourth sealing component. The support member is extended in the longitudinal direction, and the fourth sealing component is longitudinally movably arranged on the inner side of the support member to seal the packaging material at the corners of the mattress.

[0019] According to the mattress packaging device described in the embodiment of the first aspect of the present invention, the sealing device also includes a support member, and the second sealing component is movably arranged on the outside of the support member in the longitudinal direction. The second sealing component is used to fold the packaging materials on both sides of the mattress inwardly onto the upper surface of the mattress and stick them to fix when moving toward the inside of the mattress.

[0020] According to the mattress packaging device described in the embodiment of the first aspect of the present invention, the mattress packaging device also includes a second two-side fixing device, which is arranged downstream of the first two-side fixing device. The second two-side fixing device includes a fourth workstation and two first longitudinal sealing mechanisms arranged above the fourth workstation. The first longitudinal sealing mechanism is used to longitudinally seal the longitudinal folds formed after the packaging materials on both sides of the mattress are folded onto the upper surface of the mattress.

[0021] According to the mattress packaging device described in the embodiment of the first aspect of the present invention, the first longitudinal sealing mechanism includes a third sealing component, and the third sealing component can be arranged to be raised and lowered, and the third sealing component can be arranged to be laterally movable to adjust the distance between the third sealing components of two first longitudinal sealing mechanisms.

[0022] According to the mattress packaging equipment described in the embodiment of the first aspect of the present invention, the second two-side fixing device also includes two vertical sealing mechanisms arranged on both sides of the fourth workstation, and the vertical sealing mechanism includes at least one fourth folding piece and at least one fifth sealing component arranged up and down, wherein the fourth folding piece can be arranged to be lifted and moved to fold the packaging material on the side of the mattress downward; the fifth sealing component can be arranged to be lifted and moved to fold the packaging material on the side of the mattress upward and seal it.

[0023] According to the mattress packaging equipment described in the embodiment of the first aspect of the present invention, the second two-side fixing device also includes two second longitudinal sealing mechanisms arranged on both sides of the downstream end of the fourth workstation, and the second longitudinal sealing mechanisms are used to longitudinally seal the packaging material on the sides of the mattress.

[0024] According to the mattress packaging equipment described in the embodiment of the first aspect of the present invention, the folding and sealing device also includes a blocking member, which is liftably arranged upstream of the first folding mechanism, and is used to block the positioning of the mattress so as to straighten the mattress and use the current position of the mattress as the starting position for detecting the mattress conveying distance.

[0025] According to the mattress packaging device of the first aspect of the present invention, the feeding device comprises:

[0026] A material unwinding assembly, comprising a first roller, wherein the first roller is used to support a roll of packaging material;

[0027] a material pulling mechanism, disposed at the downstream end of the first station, for vertically pulling the packaging material to unfold; and

[0028] The pre-storage mechanism is used to move in a direction perpendicular to the direction in which the pulling mechanism pulls the packaging material to unfold, stretching the packaging material to a predetermined length and forming a recessed portion to wrap the bottom of the mattress and form the extended portion.

[0029] According to a second aspect of the present invention, there is provided a mattress packaging production line, comprising the mattress packaging device of any one of the above embodiments.

[0030] According to a third aspect of the present invention, a mattress packaging method is provided, wherein a mattress is packaged by a mattress packaging device according to any one of the above embodiments, comprising the following steps:

[0031] The mattress is placed on the first station, the feeding device unfolds the packaging material, the mattress is conveyed forward, the packaging material is wrapped around the upper and lower surfaces of the mattress, and one end of the packaging material extends out of the lower surface of the mattress to form an extension;

[0032] The mattress is conveyed to the second station, the first folding mechanism of the folding and sealing device folds the extension portion upward and wraps it around the upper surface of the mattress, and the transverse sealing mechanism seals the folded extension portion;

[0033] The mattress is conveyed to the third station, and the second folding mechanisms of the first two-side fixing devices on both sides fold down the packaging materials on the sides of the mattress so that the packaging materials on the corresponding sides are attached to the sides of the mattress;

[0034] The third folding mechanism folds the packaging material on the side of the mattress upwards, so that the packaging material on the corresponding side is folded upwards;

[0035] The sealing device moves inwardly in the transverse direction to fold the packaging material on the side of the mattress onto the upper surface of the mattress and seal it.

[0036] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0038] Figure 1 is a schematic structural diagram of a mattress packaging device according to an embodiment of the present invention;

[0039] Figure 2 It is a schematic structural diagram of a feeding device according to an embodiment of the present invention;

[0040] Figure 3 It is a schematic diagram of the planar structure of a feeding device according to an embodiment of the present invention;

[0041] Figure 4 is a schematic structural diagram of a folding and sealing device according to an embodiment of the present invention;

[0042] Figure 5 is a schematic diagram of the working process of folding packaging materials by the first folding mechanism according to an embodiment of the present invention;

[0043] Figure 6 It is a structural schematic diagram of a transverse sealing mechanism according to an embodiment of the present invention;

[0044] Figure 7 2 is a schematic diagram of a structure in which a material support member supports packaging materials on both sides of a mattress according to an embodiment of the present invention;

[0045] Figure 8 is a schematic diagram of the planar structure of the first two-side fixing device according to an embodiment of the present invention;

[0046] Fig. 9 is a schematic structural diagram of a second folding mechanism according to an embodiment of the present invention;

[0047] Fig.10 is a schematic structural diagram of a third folding mechanism according to an embodiment of the present invention;

[0048] Fig.11 is a schematic structural diagram of a sealing device according to an embodiment of the present invention;

[0049] Fig.12 It is a partially enlarged structural schematic diagram of the second folding mechanism and the third folding mechanism on one side of the embodiment of the present invention folding the packaging material;

[0050] Fig.13 It is a partial enlarged structural schematic diagram of a sealing device on one side of an embodiment of the present invention sealing a packaging material;

[0051] Fig.14 It is a partial planar structural schematic diagram of the second two-side fixing device according to an embodiment of the present invention;

[0052] Fig.15 is a schematic diagram of the partial structure of the front end of the second two-side fixing device according to an embodiment of the present invention;

[0053] Fig.16 It is a schematic diagram of the working structure of the vertical sealing mechanism of the embodiment of the present invention for folding and sealing the packaging material;

[0054] Fig.17It is a schematic diagram of the working structure of the second longitudinal sealing mechanism of the embodiment of the present invention for sealing packaging materials;

[0055] Fig.18 is a schematic diagram of a process of packaging a thin mattress according to an embodiment of the present invention;

[0056] Fig.19 It is a schematic diagram of the process of packaging a thick mattress according to an embodiment of the present invention.

[0057] 1 , a first conveying platform 111, a material discharging assembly 120, a first roller 121, a material pulling mechanism 130, a material pre-storage mechanism 140, a material feeding mechanism 150, a material cutting mechanism 160, a folding and sealing device 200, a second station 210, a second conveying platform 211, a first folding mechanism 220, a first flipping assembly 221, a first folding member 222, a roller 223, a transverse sealing mechanism 230, a first sealing assembly 231, a pressure roller 232, a material supporting member 233, a second driving member 234, a blocking member 240, a first driving member 250, a first two-side fixing device 300, a third station 310, a third conveying platform 311, a second folding mechanism 320, a second flipping assembly 321, a second folding member 322, a fixing member 323, a third folding mechanism 330, a first sealing assembly 231, a pressure roller 232, a material supporting member 233, a second driving member 234, a blocking member 240, a first driving member 250, a first two-side fixing device 300, a third station 310, a third conveying platform 311, a second folding mechanism 320, a second flipping assembly 321, a second folding member 322, a fixing member 323, a third folding mechanism 330, a first Three folding parts 331, third driving parts 332, sealing device 340, second sealing assembly 341, supporting parts 342, fourth sealing assembly 343, mobile frame 350, fourth driving assembly 360, fifth driving part 370, sixth driving assembly 380, seventh driving part 390, second two-side fixing devices 400, fourth station 410, fourth conveying platform 411, first longitudinal sealing mechanism 420, third sealing assembly 421, vertical sealing mechanism 430, fourth folding part 431, fifth sealing assembly 432, second longitudinal sealing mechanism 440, sixth sealing assembly 441, downward pressing conveying platform 500, extension part 10, transverse sealing tape 20, side sealing tape 30, first longitudinal sealing tape 40, corner sealing tape 50, vertical sealing tape 60, second longitudinal sealing tape 70, longitudinal folding edge 80, recessed part 90. DETAILED DESCRIPTION

[0058] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0059] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0060] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] Reference Figures 1 to 19 An embodiment of the present invention provides a mattress packaging device, comprising a feeding device 100 and a folding and sealing device 200 arranged in sequence from upstream to downstream in the conveying direction of the mattress (ie, from back to front in the figure).

[0062] The feeding device 100 has a first station 110 for placing a mattress, and a first conveying platform 111 is provided on the first station 110. The feeding device 100 is used to unfold the packaging material and wrap it on the upper and lower surfaces of the mattress, so that one end of the packaging material located below the mattress extends out of the lower surface of the mattress and forms an extension 10, and the packaging material located on the upper surface of the mattress is relatively short and within the length of the mattress. Specifically, the packaging material is unfolded in front of the first station 110, and the first conveying platform 111 conveys the mattress forward, and the packaging material wraps most of the mattress, and only the rear end and left and right sides of the mattress are not sealed.

[0063] Reference Figure 1 Combined with Figures 4 to 6 , Fig.18 and Fig.19The folding and sealing device 200 is arranged downstream of the feeding device 100 (i.e., the front in the figure), and includes a second station 210, a first folding mechanism 220 and a transverse sealing mechanism 230. The second station 210 is provided with a second conveying platform 211. The first folding mechanism 220 is arranged at the upstream end of the second station 210 (i.e., the rear end in the figure), that is, between the first station 110 and the second station 210. The first folding mechanism 220 is used to fold the extension part 10 upward and wrap it on the upper surface of the mattress. The transverse sealing mechanism 230 includes at least one first sealing component 231 that can be moved laterally (i.e., left and right directions, the same applies below). The first sealing component 231 is used to seal the folded extension part 10 and form a transverse sealing belt 20.

[0064] It can be understood that the above-mentioned first sealing component 231, as well as the second sealing component 341, the third sealing component 421, the fourth sealing component 343 and the fifth sealing component 432 below, are all sealed with tape or other adhesive materials, and their specific structures are common knowledge to those skilled in the art and will not be repeated here.

[0065] It is understandable that the packaging material can be selected according to actual needs, for example, the packaging material can be kraft paper.

[0066] Compared with thick mattresses, for thinner mattresses, such as mattresses with a thickness of 10 cm or less, there is not enough space on the rear end or left and right sides of the mattress for tape sealing. Therefore, traditional mattress packaging machines are not suitable for packaging thin mattresses.

[0067] The mattress packaging equipment of this embodiment uses a packaging process different from that of thick mattresses to effectively package thin mattresses. The mattress is placed on the first station 110, and the packaging material is unfolded and wrapped on the upper and lower surfaces of the mattress by the feeding device 100, and one end of the packaging material extends out of the lower surface of the mattress to form an extension 10; then the mattress is transported to the second station 210, and the extension 10 is folded upward and wrapped on the upper surface of the mattress by the first folding mechanism 220 of the folding and sealing device 200, and the folded extension 10 is sealed by the transverse sealing mechanism 230 to form a transverse sealing belt 20 located on the upper surface of the mattress, thereby completing the sealing of the opening of the packaging material at the rear end of the mattress. Compared with the existing mattress packaging equipment that needs to seal on the rear end surface of the mattress, this equipment folds the packaging material on the upper surface of the mattress for sealing, which is convenient for packaging thin mattresses and can achieve the sealing of the rear end of thin mattresses. Compared with the traditional manual packaging of thin mattresses, it can improve production efficiency.

[0068] A downward pressing conveying platform 500 is provided above each conveying platform (the first conveying platform 111, the second conveying platform 211, etc.). The downward pressing conveying platform 500 can be raised and lowered, and can cooperate with each conveying platform to clamp the mattress for conveyance, so as to avoid the mattress being offset due to the force of the folding or sealing packaging materials during the packaging process.

[0069] Reference Figure 4 and 5 In some embodiments of the present invention, the first folding mechanism 220 includes a first flipping assembly 221 and a first folding member 222. The first folding member 222 is arranged to be liftable, and is used to fold the extension portion 10 upward for the first time. The first flipping assembly 221 is used to drive the first folding member 222 to flip, so as to fold the extension portion 10 for the second time, so that the end of the extension portion 10 is wrapped around the upper surface of the mattress. Specifically, the first folding member 222 is in the shape of a long strip, extending in the transverse direction, and can be driven to rise and fall by a cylinder; the first flipping assembly 221 drives the first folding member 222 to flip approximately 90 degrees, and it can use a cylinder and cooperate with a connecting rod mechanism to drive the first folding member 222 to flip, or use a motor or other rotating device or mechanism to drive the first folding member 222 to rotate.

[0070] In a further embodiment, the first folding mechanism 220 further includes a roller 223, which is arranged to extend in the transverse direction, and the roller 223 can be raised and lowered to form a first position and a second position of different heights. In the first position, the roller 223 is located slightly above the mattress, and as the mattress is transported forward, the roller 223 can flatten the packaging material on the upper surface of the mattress, so that the packaging material is closely attached to the upper surface of the mattress. The roller 223 descends, and in the second position, it cooperates with the first folding member 222 to clamp the extension portion 10.

[0071] Specifically, the process of folding the extension part 10 by the first folding mechanism 220 is as follows: the roller 223 is initially located at the first position, the mattress is transported forward, and the packaging material on the upper surface of the mattress is flattened so that the packaging material is in close contact with the upper surface of the mattress; when the mattress is transported forward to just in front of the first folding mechanism 220, the second conveying platform 211 stops conveying, and the roller 223 descends to the second position, and cooperates with the first folding member 222 to clamp the extension part 10, and then the roller 223 and the first folding member 222 rise at the same time, folding the extension part 10 upward to fit the rear end of the mattress, and at the same time the roller 223 can flatten the extension part 10; when the first folding member 222 rises to a predetermined height position, the first flipping assembly 221 drives the first folding member 222 to flip, folding the end of the extension part 10 and wrapping it on the upper surface of the mattress, so that the two ends of the packaging material overlap.

[0072] Reference Figure 4In some embodiments, the folding and sealing device 200 further includes a blocking member 240, which is arranged upstream of the first folding mechanism 220 in a manner that it can be raised or lowered. The blocking member 240 is used to block and position the mattress so as to straighten the mattress and use the current position of the mattress as the starting position for detecting the mattress conveying distance. Since the relative position of the first folding mechanism 220 and the mattress is just located at the rear end of the mattress when the extension portion 10 is folded, the position of the mattress conveying has certain accuracy requirements. After the mattress is blocked and positioned by the blocking member 240, the mattress is conveyed, and the mattress can be straightened. At the same time, this position is used as the starting point for detecting the mattress conveying distance, which can improve the accuracy of controlling the mattress conveying position. Specifically, the blocking member 240 is driven to rise and fall by the first driving member 250, and the first driving member 250 can be a cylinder.

[0073] Reference Figure 6 In some embodiments, the transverse sealing mechanism 230 further includes at least one pressing roller assembly and two supporting members 233. The pressing roller assembly is fixedly connected to the first sealing assembly 231 and is arranged in front of the moving direction of the first sealing assembly 231, so as to move with the first sealing assembly 231 and press the packaging material, and the pressing roller assembly includes a pressing roller 232 and a second driving member 234 for driving the pressing roller 232 to move up and down. The supporting members 233 can be moved laterally to adjust the position and can be raised and lowered, and the supporting members 233 are used to support the packaging materials on both sides of the mattress.

[0074] The first sealing assembly 231 is placed at the end of the extension 10 to form a transverse sealing strip 20. A roller assembly that can move with the first sealing assembly 231 is provided to assist in pressing the packaging material to ensure that the packaging material fits the mattress. Specifically, there are two first sealing assemblies 231, and two roller assemblies are provided accordingly. The two first sealing assemblies 231 move from the middle to the left and right sides to perform sealing. Figure 7 The width of the packaging material is greater than that of the mattress, and its left and right sides extend out of the mattress, so the packaging materials on the left and right sides of the mattress are suspended in the air. By setting two supporting members 233 to support the left and right sides of the extension part 10, the lateral sealing of the first sealing component 231 can extend to the ends on both sides, thereby improving the sealing effect.

[0075] The transverse sealing mechanism 230 is fixedly connected to the downward pressing conveying platform 500 above the second conveying platform 211, and can be raised and lowered as a whole along with the downward pressing conveying platform 500.

[0076] After the folding and sealing device 200 seals the packaging material at the rear end of the mattress, the mattress is transported from the second station 210 to the third station 310 to seal the packaging material on both sides of the mattress.

[0077] In some embodiments of the present invention, reference Figure 1 Combined with Figures 8 to 13The mattress packaging device also includes a first two-side fixing device 300, which is arranged downstream of the folding and sealing device 200. The first two-side fixing device 300 is used to fold the two-side packaging materials of the mattress onto the upper surface of the mattress and seal it.

[0078] Similarly, for the sealing of the packaging materials on both sides of the mattress, the packaging materials on both sides are folded onto the upper surface of the mattress and sealed by the first two-side fixing device 300, so as to facilitate the packaging of the thin mattress.

[0079] The first two-side fixing device 300 is arranged downstream of the folding and sealing device 200, and includes a third station 310, two second folding mechanisms 320 arranged on the left and right sides of the third station 310, two third folding mechanisms 330 and two sealing devices 340. A third conveying platform 311 is arranged on the third station 310, and the second folding mechanism 320 and the third folding mechanism 330 are arranged up and down. The sealing device 340 includes at least one second sealing component 341, and the sealing device 340 can be arranged to move laterally.

[0080] The mattress is conveyed to the third workstation 310, and the packaging materials on the side (left or right) of the mattress are folded downward by the second folding mechanisms 320 of the first and second fixing devices 300 on both sides, so that the packaging materials on the corresponding side are attached to the side of the mattress; the packaging materials on the side of the mattress are then folded upward by the third folding mechanism 330, so that the packaging materials on the corresponding side are folded upward; the sealing device 340 moves laterally inward (toward the middle of the mattress is the inward side), folds the packaging materials on the side of the mattress onto the upper surface of the mattress and seals it, so as to seal the openings of the packaging materials on both sides of the mattress, thereby completing the packaging of the mattress.

[0081] Reference Fig. 9 In some embodiments, the second folding mechanism 320 of the first two-side fixing device 300 includes a second flipping assembly 321 and at least one second folding piece 322. The second flipping assembly 321 is used to drive the second folding piece 322 to flip and form a first state and a second state. In the first state, the second folding piece 322 is horizontal. In the second state, the second folding piece 322 is vertical, so that the packaging material on the corresponding side (left or right) is attached to the side of the mattress. Specifically, the second flipping assembly 321 drives the second folding piece 322 to flip approximately 90 degrees. A cylinder can be used in conjunction with a connecting rod mechanism to drive the second folding piece 322 to flip, or a motor or other rotating device or mechanism can be used to drive the second folding piece 322 to rotate.

[0082] In a further embodiment, the second folding mechanism 320 also includes a fixing member 323, which is extended in the longitudinal direction (i.e., the front-to-back direction, and the same applies hereinafter), and a plurality of second folding members 322 are longitudinally spaced apart on the outside of the fixing member 323 (the inside is toward the middle of the mattress, and the outside is away from the middle of the mattress, and the same applies hereinafter), that is, the fixing member 323 is located on the inside, so that when the second folding member 322 folds the packaging material on the side of the mattress, the fixing member 323 located on the inside can assist in pressing and fixing the upper surface of the mattress close to the packaging material to be folded, so that the packaging material and the mattress are more closely fitted, thereby improving the packaging effect.

[0083] Reference Fig.10 Combined with Figure 8 and 11 In some embodiments, the third folding mechanism 330 is disposed outside the second folding mechanism 320, and the third folding mechanism 330 includes at least one third folding member 331, and the third folding member 331 is vertically and can be raised and lowered. Specifically, a plurality of third folding members 331 are distributed and arranged at intervals along the longitudinal direction, and the third folding members 331 are driven to move up and down by a third driving member 332, and the third driving member 332 can be a cylinder.

[0084] Reference Figure 8 The first two-side fixing device 300 also includes two mobile racks 350 arranged on the left and right sides of the third station 310. The second folding mechanism 320 and the sealing device 340 on the corresponding side are installed on the mobile racks 350 on the corresponding side. The two mobile racks 350 can be arranged to move toward or away from each other to adjust the distance between the two mobile racks 350, which can be suitable for packaging mattresses of different widths. Specifically, the two mobile racks 350 are driven to move by the fourth driving assembly 360, and the fourth driving assembly 360 can adopt a gear rack mechanism. The movement of the mobile rack 350 can also drive the sealing device 340 to seal horizontally.

[0085] In addition, the sealing device 340 is arranged on the mobile frame 350 so as to be movable in a lifting manner, and can be applied to the packaging of mattresses of different heights. The second folding mechanism 320 is arranged on the mobile frame 350 so as to be movable in a transverse manner, and can be driven to move in a transverse manner by the fifth driving member 370, and the fifth driving member 370 can be a cylinder. Since the distance for the two sealing devices 340 to move in a transverse manner for sealing is relatively long, the two second folding mechanisms 320 located on the inner side are prone to interference, and at this time, the second folding mechanisms 320 can be driven to retract by the fifth driving member 370.

[0086] The second folding mechanism 320 is movably disposed on the movable frame 350. Specifically, the second folding mechanism 320 can be driven to move up and down by the seventh driving member 390, which can be a cylinder, and the second folding mechanism 320 moves downward to fold the packaging material on the side.

[0087] Similarly, the two third folding mechanisms 330 can be arranged to move toward or away from each other to adjust the distance between them, which can be suitable for packaging mattresses of different widths. The two third folding mechanisms 330 are driven to move by the sixth driving assembly 380, and the sixth driving assembly 380 can adopt a gear rack mechanism.

[0088] Specifically, the process of the first two-side fixing device 300 sealing the packaging material on the side of the mattress is as follows: the mattress is on the third station 310, the first folding member 222 is initially in a horizontal first state, the second flip assembly 321 drives the second folding member 322 to flip vertically, the second folding mechanism 320 descends to the mattress position, and the fixing member 323 is used to press and fix the upper surface of the mattress close to the position of the packaging material to be folded, and at the same time, the second folding member 322 fits the packaging material on the corresponding side to the side of the mattress, and makes the upper layer and the lower layer of the side packaging material fit closely to each other, such as Fig.12 The third folding member 331 of the third folding mechanism 330 located on the outside rises to fold the side packaging material upward; refer to Fig.13 The sealing device 340 moves laterally inward, folds the side packaging material inward on the upper surface of the mattress, and seals it through multiple second sealing components 341, forming multiple horizontal side sealing belts 30 after sealing.

[0089] Reference Figure 1 Combined with Fig.15 In some embodiments of the present invention, the mattress packaging device further includes a second two-side fixing device 400, which is arranged downstream of the first two-side fixing device 300. The second two-side fixing device 400 includes a fourth station 410 and two first longitudinal sealing mechanisms 420 arranged above the fourth station 410. The first longitudinal sealing mechanism 420 is used to longitudinally seal the longitudinal folded edges 80 formed after the packaging materials on both sides of the mattress are folded on the upper surface of the mattress, and a first longitudinal sealing tape 40 is formed after sealing. The longitudinal folded edges 80 are sealed by the first longitudinal sealing mechanisms 420 of the second two-side fixing devices 400, thereby improving the firmness and sealing of the mattress packaging, thereby improving the packaging effect. A fourth conveying platform 411 is arranged on the fourth station 410.

[0090] Specifically, the first longitudinal sealing mechanism 420 includes a third sealing assembly 421. The two first longitudinal sealing mechanisms 420 are located on both sides in front of the fourth station 410. During sealing, the first longitudinal sealing mechanism 420 is fixed and the mattress is transported forward, so that the two form a relative longitudinal movement, thereby performing longitudinal sealing.

[0091] Of course, it is understandable that, as an alternative, the mattress can be pressed and fixed during sealing, and the first longitudinal sealing mechanism 420 can be moved longitudinally to also achieve longitudinal sealing, as long as the two form relative longitudinal movement.

[0092] In addition, the third sealing component 421 can be raised and lowered, which is suitable for packaging mattresses of different heights. The third sealing component 421 can also be laterally movable to adjust the distance between the third sealing components 421 of the two first longitudinal sealing mechanisms 420, which is suitable for packaging mattresses of different widths.

[0093] In some embodiments of the present invention, the mattress packaging device can also be used for packaging thick mattresses, that is, it can be used in two working scenarios of packaging thick mattresses and thin mattresses. When a thick mattress needs to be packaged, there is no need to replace the packaging device for the thick mattress. The packaging of a thick mattress is described below.

[0094] The thick mattress is also first wrapped by the feeding device 100, and the packaging material at the rear end of the mattress is folded and laterally sealed by the folding and sealing device 200.

[0095] Reference Fig.11 In some embodiments, the sealing device 340 of the first two-side fixing device 300 also includes a support member 342 and a fourth sealing component 343. The support member 342 is extended longitudinally, and the fourth sealing component 343 is longitudinally movably arranged on the inner side of the support member 342 to seal the packaging material at the corners of the thick mattress, and a corner sealing tape 50 is formed after sealing.

[0096] A plurality of second sealing components 341 are distributed longitudinally and arranged on the outside of the support member 342, and are used for sealing the packaging materials on the sides of the thin mattress. When the second sealing components 341 move laterally toward the inner side of the mattress, the packaging materials on both sides of the mattress are folded inwardly onto the upper surface of the mattress and fixed by gluing. In addition, the second sealing components 341 can be arranged to be movable longitudinally, so that the distance between each second sealing component 341 can be adjusted, that is, the sealing position of the second sealing components 341 can be adjusted. The support member 342 extends longitudinally and has a long length. When it moves toward the inner side of the mattress, it can assist in folding the packaging materials on both sides of the mattress inwardly onto the upper surface of the mattress.

[0097] In this way, the second sealing component 341 and the fourth sealing component 343 are respectively arranged on the outer side and the inner side of the support member 342 for side sealing of thin mattresses and corner sealing of thick mattresses, and different components are selected for work according to different working scenarios.

[0098] Specifically, there are two fourth sealing components 343, which are respectively used for sealing the packaging materials at the front and rear corners in the longitudinal direction of one side of the thick mattress.

[0099] Since the packaging of the thick mattress does not require the folding and sealing of the second folding mechanism 320, the third folding mechanism 330 and the second sealing assembly 341, when packaging the thick mattress, the second folding member 322 is always in the first horizontal state, and together with the fixing member 323, compresses and fixes the packaging material.

[0100] Reference Figure 1 Combined with Fig.14 , Fig.16 and Fig.17 In some embodiments, the second two-side fixing device 400 further includes two vertical sealing mechanisms 430 disposed on both sides of the fourth station 410, and the vertical sealing mechanism 430 includes at least one fourth folding piece 431 and at least one fifth sealing component 432 disposed up and down. The fourth folding piece 431 is disposed to be movable by lifting and lowering to fold the packaging material on the side of the mattress downward. The fifth sealing component 432 is disposed to be movable by lifting and lowering to fold the packaging material on the side of the mattress upward and seal it. Specifically, the fourth folding piece 431 is in the shape of a right-angle plate, and a plurality of fourth folding pieces 431 are distributed at intervals in the longitudinal direction, and a plurality of fifth sealing components 432 are distributed at intervals in the longitudinal direction and are staggered with the fourth folding piece 431.

[0101] Since the thickness of the thick mattress is relatively thick, the side packaging materials can be folded on both sides of the mattress, and vertically folded and sealed by the fourth folding member 431 and the fifth sealing assembly 432 of the vertical sealing mechanism 430, and a plurality of vertical sealing strips 60 are formed after sealing.

[0102] The two vertical sealing mechanisms 430 can be arranged to move toward or away from each other to adjust the distance between them, and can be suitable for packaging mattresses of different widths.

[0103] In some embodiments, the second two-side fixing device 400 further includes two second longitudinal sealing mechanisms 440 disposed on both sides of the downstream end of the fourth station 410. The second longitudinal sealing mechanisms 440 are used to longitudinally seal the packaging material on the sides of the thick mattress, and a second longitudinal sealing tape 70 is formed after sealing. The second longitudinal sealing mechanisms 440 further seal the two sides of the thick mattress, thereby improving the firmness and sealing of the mattress packaging, thereby improving the packaging effect.

[0104] The longitudinal sealing of a thin mattress is different from that of a thick mattress. The longitudinal sealing of a thin mattress is located on the upper surface of the mattress, while the longitudinal sealing of a thick mattress is located on both sides of the mattress.

[0105] The second longitudinal sealing mechanism 440 includes a sixth sealing component 441. The second longitudinal sealing mechanism 440 can be arranged to move horizontally to adjust the distance between two second longitudinal sealing mechanisms 440, which can be applied to the packaging of mattresses of different widths. The second longitudinal sealing mechanism 440 can also be arranged to move up and down, which can be applied to the packaging of mattresses of different heights.

[0106] Reference Figure 2 and Figure 3 In some embodiments, the feeding device 100 includes a material discharge component 120 , a material pulling mechanism 130 and a material pre-storage mechanism 140 .

[0107] The unloading assembly 120 includes a first roller 121, and the first roller 121 is used to support the roll of packaging material.

[0108] The material pulling mechanism 130 is disposed at the downstream end of the first station 110 and is used to vertically pull the packaging material to unfold. Specifically, the material pulling mechanism 130 may include two clamping members.

[0109] The pre-stocking mechanism 140 is used to move in a direction perpendicular to the direction in which the pulling mechanism 130 pulls the packaging material to unfold (i.e. horizontally), stretching the packaging material to a predetermined length and forming a recessed portion 90. The recessed portion 90 is located below the first station 110. This portion of packaging material is used to wrap the bottom of the mattress and form the above-mentioned extension portion 10. The mattress is transported forward and contacts the unfolded packaging material. The packaging material in the recessed portion 90 is wrapped around the bottom of the mattress as the mattress moves forward, which can avoid friction caused by relative movement between the packaging material and the mattress, resulting in wear of the mattress or the packaging material. Specifically, the pre-stocking mechanism 140 includes a pulling rod extending laterally.

[0110] In some of the embodiments, the feeding device 100 further includes a feeding mechanism 150 and a cutting mechanism 160 , and the packaging material is clamped and conveyed by a powered roller group of the feeding mechanism 150 , and the packaging material is cut off by the cutting mechanism 160 after it is unfolded.

[0111] According to a second aspect of the present invention, a mattress packaging production line is provided, comprising a mattress packaging device according to any one of the above embodiments. The mattress packaging production line including the above mattress packaging device can package thin mattresses. Compared with traditional manual packaging of thin mattresses, the production efficiency can be improved.

[0112] It is understandable that the mattress packaging production line may also include other process equipment, such as a delivery mechanism for placing instructions or desiccant, etc.

[0113] According to a third aspect of the present invention, a mattress packaging method is provided, wherein a mattress is packaged by a mattress packaging device according to any one of the above embodiments, comprising the following steps:

[0114] The mattress is placed on the first work station 110, the feeding device 100 unfolds the packaging material, the mattress is conveyed forward, the packaging material is wrapped around the upper and lower surfaces of the mattress, and one end of the packaging material extends out of the lower surface of the mattress to form an extension portion 10;

[0115] The mattress is conveyed to the second station 210, the first folding mechanism 220 of the folding and sealing device 200 folds the extension part 10 upward and wraps it on the upper surface of the mattress, and the transverse sealing mechanism 230 seals the folded extension part 10;

[0116] The mattress is conveyed to the third station 310, and the second folding mechanisms 320 of the first and second fixing devices 300 on both sides fold the packaging materials on the sides of the mattress downwards, so that the packaging materials on the corresponding sides are attached to the sides of the mattress;

[0117] The third folding mechanism 330 folds the packaging material on the side of the mattress upwards, so that the packaging material on the corresponding side is folded upwards;

[0118] The sealing device 340 moves inwardly in the transverse direction to fold the packaging material on the side of the mattress onto the upper surface of the mattress and seal it.

[0119] The packaging method described above packages a mattress using the mattress packaging device of any of the above embodiments, and can package a thinner mattress, and can also package a thicker mattress as required.

[0120] Reference Figure 1 Combined with Fig.18 Specifically, the steps of packaging a thin mattress by a mattress packaging device are as follows:

[0121] The mattress is placed on the first work station 110, the pulling mechanism 130 of the feeding device 100 pulls the packaging material vertically to unfold, the pre-storage mechanism 140 moves horizontally to stretch the packaging material to a predetermined length, the mattress is transported forward, the packaging material wraps the upper surface and the lower surface of the mattress, and one end of the packaging material located below the mattress extends out of the lower surface of the mattress and forms an extension portion 10;

[0122] The blocking member 240 is raised to block the mattress, and the position is used as the starting point for detecting the conveying distance of the mattress; the blocking member 240 is lowered;

[0123] The mattress is further transported forward to the folding and sealing device 200. At the second station 210, the extension part 10 is folded to the upper surface of the mattress by the first folding mechanism 220, wherein the packaging material and the extension part 10 on the upper surface of the mattress can be flattened by the roller 223; the first sealing component 231 of the transverse sealing mechanism 230 moves the end of the sealing extension part 10 transversely to form a transverse sealing belt 20;

[0124] The mattress is continuously conveyed forward to the first two-side fixing device 300. At the third station 310, the packaging materials on both sides of the mattress are folded downward by the second folding mechanisms 320 on both sides, so that the packaging materials on the corresponding sides are attached to the sides of the mattress, and the upper and lower layers of the side packaging materials are tightly attached to each other. The third folding mechanism 330 folds the side packaging materials upward. The sealing device 340 moves laterally inward, folds the side packaging materials inward on the upper surface of the mattress through the support member 342, and seals them through the multiple second sealing components 341 on the outer side of the support member 342. After sealing, multiple side sealing strips 30 are formed.

[0125] The mattress is continuously conveyed forward to the second two-side fixing device 400. At the fourth station 410, the mattress is conveyed forward and longitudinally sealed by two first longitudinal sealing mechanisms 420 to form a longitudinal fold 80 after the packaging materials on both sides of the mattress are folded onto the upper surface of the mattress. After sealing, a first longitudinal sealing tape 40 is formed, and the packaging of the thin mattress is completed.

[0126] Reference Figure 1 Combined with Fig.19 The steps of mattress packaging equipment for packaging thick mattresses are as follows:

[0127] The mattress is placed on the first work station 110, the pulling mechanism 130 of the feeding device 100 pulls the packaging material vertically to unfold, the pre-storage mechanism 140 moves horizontally to stretch the packaging material to a predetermined length, the mattress is transported forward, the packaging material wraps the upper surface and the lower surface of the mattress, and one end of the packaging material located below the mattress extends out of the lower surface of the mattress and forms an extension portion 10;

[0128] The blocking member 240 is raised to block the mattress, and the position is used as the starting point for detecting the conveying distance of the mattress; the blocking member 240 is lowered;

[0129] The mattress is further transported forward to the folding and sealing device 200. At the second station 210, the extension part 10 is folded to the upper surface of the mattress by the first folding mechanism 220, wherein the packaging material and the extension part 10 on the upper surface of the mattress can be flattened by the roller 223; the first sealing component 231 of the transverse sealing mechanism 230 moves the end of the sealing extension part 10 transversely to form a transverse sealing belt 20;

[0130] The mattress is continuously conveyed forward to the first two-side fixing device 300. At the third station 310, the fourth sealing assembly 343 located inside the supporting member 342 of the two-side sealing device 340 moves longitudinally to seal the packaging material at the corners of the mattress. At this time, the second folding member 322 is always in the first horizontal state, and together with the fixing member 323, the packaging material is pressed and fixed, and a corner sealing tape 50 is formed after sealing.

[0131] The mattress is continuously conveyed forward to the second two-side fixing device 400, and at the fourth station 410, it is vertically folded and sealed by the fourth folding piece 431 and the fifth sealing assembly 432 of the vertical sealing mechanism 430, and a plurality of vertical sealing strips 60 are formed after sealing; the mattress is conveyed forward, and the packaging materials on both sides of the thick mattress are longitudinally sealed by the second longitudinal sealing mechanism 440, and a second longitudinal sealing strip 70 is formed after sealing, and the packaging of the thick mattress is completed.

[0132] Other structures and operations of the mattress packaging equipment, the mattress packaging production line and the mattress packaging method according to the embodiments of the present invention are well known to those skilled in the art and will not be described in detail here.

[0133] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0134] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A mattress packaging device, characterized in that: include: A feeding device having a first station for placing a mattress, the feeding device being used to unfold the packaging material and wrap it around the upper and lower surfaces of the mattress so that one end of the packaging material protrudes from the lower surface of the mattress and forms an extension portion; and A folding and sealing device is arranged downstream of the feeding device, and includes a second workstation, a first folding mechanism and a transverse sealing mechanism. The first folding mechanism is arranged at the upstream end of the second workstation. The first folding mechanism is used to fold the extension part upward and wrap it on the upper surface of the mattress. The first folding mechanism includes a first flipping assembly, a first folding piece and a roller. The first folding piece can be raised and lowered to fold the extension part upward for the first time. The first flipping assembly is used to drive the first folding piece to flip to fold the extension part for the second time so that the end of the extension part is wrapped on the mattress. The roller can be raised and lowered and forms a first position and a second position. In the first position, the roller is used to flatten the packaging material on the upper surface of the mattress. In the second position, the roller cooperates with the first folding piece to clamp the extension part. The transverse sealing mechanism includes at least one first sealing assembly that can move laterally. The first sealing assembly is used to seal the folded extension part.

2. The mattress packaging device according to claim 1, characterized in that: The transverse sealing mechanism also includes at least one pressure roller assembly and two material supporting members, wherein the pressure roller assembly is fixedly connected to the first sealing assembly and is arranged in front of the moving direction of the first sealing assembly, so as to move with the first sealing assembly and press the packaging material, and the pressure roller assembly includes a pressure roller that can be raised and lowered; the material supporting member can be laterally moved to adjust the position and can be raised and lowered, and the material supporting member is used to support the packaging material on both sides of the mattress.

3. The mattress packaging device according to claim 1, characterized in that: The mattress packaging device further includes a first two-side fixing device, which is arranged downstream of the folding and sealing device, and includes a third station, two second folding mechanisms arranged on both sides of the third station, two third folding mechanisms and two sealing devices, and the second folding mechanism and the third folding mechanism are arranged up and down; wherein, The second folding mechanism is used to fold the packaging material on the side of the mattress downward so that the packaging material on the corresponding side fits the side of the mattress; The third folding mechanism is used to fold the packaging material on the side of the mattress upwards, so that the packaging material on the corresponding side is folded upwards; The sealing device comprises at least one second sealing component, and the sealing device can be arranged to move laterally so as to fold the packaging material on the side of the mattress onto the upper surface of the mattress and seal it.

4. The mattress packaging device according to claim 3, characterized in that: The second folding mechanism includes a fixing member, a second flipping assembly and at least one second folding member, the fixing member is extended in the longitudinal direction, the fixing member is used to press and fix the mattress, the second folding member is arranged on the outside of the fixing member, and the second flipping assembly is used to drive the second folding member to flip and form a first state and a second state, wherein in the first state, the second folding member is horizontal; in the second state, the second folding member is vertical so that the packaging material on the corresponding side fits the side of the mattress.

5. The mattress packaging device according to claim 3, characterized in that: The third folding mechanism is arranged outside the second folding mechanism, and the third folding mechanism includes at least one third folding member, and the third folding member is arranged to be liftable, and the two third folding mechanisms are arranged to be movable toward or away from each other.

6. The mattress packaging device according to claim 3, characterized in that: The first two-side fixing device also includes two movable frames arranged on both sides of the third workstation, the second folding mechanism and the sealing device on the corresponding side are installed on the movable frames on the corresponding side, and the two movable frames can be arranged to move toward or away from each other to adjust the distance between the two movable frames; the sealing device can be arranged on the movable frame to be movable by lifting and lowering, and the second folding mechanism can be arranged on the movable frame to be movable laterally and by lifting and lowering.

7. The mattress packaging device according to claim 3, characterized in that: The sealing device also includes a support member and a fourth sealing component. The support member is extended longitudinally, and the fourth sealing component is longitudinally movably arranged on the inner side of the support member to seal the packaging material at the corners of the mattress.

8. The mattress packaging device according to claim 3, characterized in that: The sealing device also includes a support member, and the second sealing component is movably arranged on the outside of the support member in the longitudinal direction. The second sealing component is used to fold the packaging materials on both sides of the mattress inwardly onto the upper surface of the mattress and stick them to fix when moving toward the inside of the mattress.

9. The mattress packaging device according to any one of claims 3 to 8, characterized in that: The mattress packaging equipment also includes a second two-side fixing device, which is arranged downstream of the first two-side fixing device. The second two-side fixing device includes a fourth station and two first longitudinal sealing mechanisms arranged above the fourth station. The first longitudinal sealing mechanism is used to longitudinally seal the longitudinal folds formed after the packaging materials on both sides of the mattress are folded onto the upper surface of the mattress.

10. The mattress packaging device according to claim 9, characterized in that: The first longitudinal sealing mechanism comprises a third sealing component, and the third sealing component can be raised and lowered, and the third sealing component can be laterally moved to adjust the distance between the third sealing components of the two first longitudinal sealing mechanisms.

11. The mattress packaging device according to claim 9, characterized in that: The second two-side fixing device also includes two vertical sealing mechanisms arranged on both sides of the fourth workstation, and the vertical sealing mechanism includes at least one fourth folding piece and at least one fifth sealing component arranged up and down, wherein the fourth folding piece can be arranged to be lifted and moved to fold the packaging material on the side of the mattress downward; the fifth sealing component can be arranged to be lifted and moved to fold the packaging material on the side of the mattress upward and seal it.

12. The mattress packaging device according to claim 11, characterized in that: The second two-side fixing device also includes two second longitudinal sealing mechanisms arranged on both sides of the downstream end of the fourth station, and the second longitudinal sealing mechanisms are used to longitudinally seal the packaging material on the sides of the mattress.

13. The mattress packaging device according to any one of claims 1 to 8, characterized in that: The folding and sealing device also includes a blocking member, which is movably arranged upstream of the first folding mechanism. The blocking member is used to block the positioning mattress so as to straighten the mattress and use the current position of the mattress as the starting position for detecting the mattress conveying distance.

14. The mattress packaging device according to any one of claims 1 to 8, characterized in that: The feeding device comprises: A material unwinding assembly, comprising a first roller, wherein the first roller is used to support a roll of packaging material; a material pulling mechanism, disposed at the downstream end of the first station, for vertically pulling the packaging material to unfold; and The pre-storage mechanism is used to move in a direction perpendicular to the direction in which the pulling mechanism pulls the packaging material to unfold, stretch the packaging material to a predetermined length and form a recessed portion, so as to wrap the bottom of the mattress and form the extended portion.

15. A mattress packaging production line, characterized by: A mattress packaging device comprising the mattress packaging device according to any one of claims 1 to 14.

16. A mattress packaging method, characterized in that: The mattress packaging device according to any one of claims 3 to 12 is used to package a mattress, comprising the following steps: The mattress is placed on the first station, the feeding device unfolds the packaging material, the mattress is conveyed forward, the packaging material is wrapped around the upper and lower surfaces of the mattress, and one end of the packaging material extends out of the lower surface of the mattress to form an extension; The mattress is conveyed to the second station, the first folding mechanism of the folding and sealing device folds the extension portion upward and wraps it around the upper surface of the mattress, and the transverse sealing mechanism seals the folded extension portion; The mattress is conveyed to the third station, and the second folding mechanisms of the first two-side fixing devices on both sides fold down the packaging materials on the sides of the mattress so that the packaging materials on the corresponding sides are attached to the sides of the mattress; The third folding mechanism folds the packaging material on the side of the mattress upwards, so that the packaging material on the corresponding side is folded upwards; The sealing device moves inwardly in the transverse direction to fold the packaging material on the side of the mattress onto the upper surface of the mattress and seal it.

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