Hot melting table for film roll packaging

Abstract

The present invention relates to the technical field of packaging, and specifically disclosed is a hot melting table for film roll packaging. The hot melting table comprises a table body; a first unwinding unit for placing a packaging material, a second unwinding unit for applying a double-sided adhesive to the packaging material, and a traction unit for pulling the packaging material to a position below a film roll are mounted on the table body; and after the packaging material is pulled to the position below the film roll, a hot melting unit on a table body performs hot melting on the film roll, such that two ends of an air bubble film are bonded together, and the air bubble film wraps the film roll. The hot melting unit performs hot melting on the air bubble film by means of a first hot melting structure and a second hot melting structure, and the first hot melting structure comprises two driving rods, wherein a hot melting rod is arranged between the two driving rods, and two ends of the hot melting rod are fixedly connected to two driving rods, respectively. The hot melting rod comprises a first rod body, a heating wire and high-temperature cloth, wherein the first rod body is provided with a first groove in the extension direction of the first rod body, the heating wire is mounted on the bottom surface of the groove, and the high-temperature cloth is mounted on the first rod body. The high-temperature cloth is arranged to close an opening of the groove, and hot melting is performed on the air bubble film by means of the high-temperature cloth, such that the air bubble film is heated more uniformly, thereby achieving a better hot melting effect of the air bubble film.

Description

A hot melt table for film roll packaging Technical Field

[0001] The present invention relates to the technical field of packaging, in particular to a hot melt table for film roll packaging. Background Art

[0002] The film roll needs to be packaged with bubble film or kraft paper. The kraft paper is bonded together with double-sided tape, and the bubble film needs to be hot-melted on a hot-melt table so that the two ends of the bubble film are bonded into a whole.

[0003] In existing hot melt stations, the heating wire is installed in a slot on the hot melt rod. When powered, the heating wire directly heats the bubble film. However, the heating wire is long, as is the length of the bubble film to be melted. During the hot melt process, the heating wire on the hot melt rod directly heats the bubble film. The distance between the heating wire and the bubble film varies depending on the location of the heating wire. This results in uneven heating of the bubble film, resulting in poor hot melt results.

[0004] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0005] The invention discloses a hot-melt station for film roll packaging, which is used to improve the problem of poor hot-melt effect of bubble films.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A hot melt station for film roll packaging, comprising:

[0008] Taiwan body;

[0009] The first unwinding unit is used to place the packaging material;

[0010] A traction unit, mounted on the platform, for pulling the packaging material under the film roll;

[0011] a second unwinding unit, mounted on the platform, for attaching double-sided tape to the packaging material;

[0012] a cutting unit, disposed between the hot melt unit and the second unwinding unit, for cutting the packaging material;

[0013] A hot melt unit is installed on the platform and is used to hot melt the packaging material. The hot melt unit includes:

[0014] A first hot-melt structure and a second hot-melt structure are arranged opposite to each other, wherein one end of the first hot-melt structure is rotatably connected to one end of the second hot-melt structure;

[0015] a driving structure, the driving structure being mounted on the first hot-melt structure and configured to drive the first hot-melt structure and the second hot-melt structure toward each other;

[0016] The first hot melt structure is the same as the first hot melt structure, and the first hot melt structure includes:

[0017] Two driving rods arranged in opposite directions; and

[0018] A hot melt rod, wherein both ends of the hot melt rod are fixedly connected to the two driving rods respectively, and the hot melt rod includes a first rod body, a heating wire and a high-temperature cloth. The first rod body is provided with a groove along its extension direction, the heating wire is installed on the bottom surface of the groove, the high-temperature cloth is installed on the first rod body, and the high-temperature cloth closes the opening of the groove, and the high-temperature cloth is used to abut against the bubble film.

[0019] Preferably, the first unwinding unit comprises a first supporting structure and a second supporting structure, the first supporting structure is used to place the bubble film, and the second supporting structure is used to place the kraft paper;

[0020] The first supporting structure includes a first mounting frame, a first supporting frame, a second supporting frame, a first driving member and a first limiting member, wherein the first supporting frame is slidably connected to the first mounting frame, the first driving member is used to drive the first supporting frame to slide, the second supporting frame is slidably connected to the first mounting frame, and the first limiting member is used to limit the second supporting frame to the first mounting frame;

[0021] The second supporting structure includes a second mounting frame, a third supporting frame, a fourth supporting frame and a second driving member. The third supporting frame and the fourth supporting frame are both slidably connected to the second mounting frame. The second driving member is used to drive the third supporting frame and the fourth supporting frame to move closer to or away from each other.

[0022] Preferably, the first unwinding unit further includes a third mounting frame and a third driving member, the first mounting frame is mounted on the second mounting frame, the second mounting frame is slidably connected to the third mounting frame, and the third driving member is used to drive the second mounting frame to slide on the third mounting frame.

[0023] Preferably, the hot melt rod further comprises a silicone strip, the silicone strip is filled in the groove, the heating wire is installed inside the silicone strip, the silicone strip extends from inside the groove to outside the groove, and the high temperature cloth is used to encapsulate the silicone strip.

[0024] Preferably, an adjustment hole is provided on the side wall of the first rod body, and the adjustment hole is a through hole, which connects the groove with the outside world. There are a plurality of adjustment holes, and the plurality of adjustment holes are arranged at intervals.

[0025] Preferably, the driving rod comprises:

[0026] a second rod, the second rod being provided with a first through hole and a second through hole, the first through hole penetrating a side surface of the second rod, and the second through hole extending from one end of the second rod to the first through hole;

[0027] a sliding rod installed in the second through hole, the sliding rod being slidably connected to the second rod body, and one end of the sliding rod being used for mounting a hot melt rod;

[0028] An elastic member is arranged in the second through hole, one end of the elastic member is connected to the second rod body, and the other end of the elastic member is connected to the other end of the sliding rod. The elastic member is used to drive the sliding rod to approach the second rod body.

[0029] Preferably, the sliding rod includes a first portion, a second portion, and a protrusion, wherein the first portion and the second portion are arranged side by side; the sliding rod includes a connecting block, wherein the connecting block is fixedly connected to one end of the first portion and the second portion respectively, and the protrusion is fixedly connected to the other end of the first portion and the second portion respectively, and the protrusion is used to abut against the second rod body;

[0030] A third through hole is provided on the side wall of the second rod body, and the third through hole is communicated with the second through hole.

[0031] Preferably, the first unwinding unit further includes a third supporting structure, and the third supporting structure and the first supporting structure are arranged on both sides of the platform facing each other;

[0032] The third support structure includes a fourth mounting frame, a fifth supporting frame, a sixth supporting frame, a fourth driving member and a second limiting member. The fifth supporting frame and the sixth supporting frame are both slidably connected to the fourth mounting frame. The fourth driving member is used to drive the fifth supporting frame to slide, and the second limiting member is used to limit the sixth supporting frame to the fourth mounting frame.

[0033] Preferably, the traction unit includes a fifth driving member, a sliding guide rail and a clamping member, the clamping member is slidably connected to the sliding guide rail, and the fifth driving member is used to drive the clamping member to move along the sliding guide rail;

[0034] There are two sliding guide rails, which are correspondingly arranged on both sides of the packaging material. There are also two clamping members, which are used to clamp the packaging material.

[0035] Preferably, the second unwinding unit includes a mounting seat, an unwinding wheel, a pinch wheel, a winding wheel, and a sixth driving member, wherein the unwinding wheel, the pinch wheel, and the winding wheel are all rotatably connected to the mounting seat, the double-sided film is mounted on the unwinding wheel, one end of the double-sided film passes around the pinch wheel and is fixed to the winding wheel, and the sixth driving member is used to drive the winding wheel to rotate;

[0036] The second unwinding unit further includes a magnetic sensing structure, and the magnetic sensing structure is used to determine whether the unwinding wheel is rotating.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] The present invention provides a hot melt table for film roll packaging, which includes a table body, on which a first unwinding unit for placing packaging materials, a second unwinding unit for sticking double-sided tape on the packaging materials, and a traction unit for pulling the packaging materials to the bottom of the film roll are installed. After the packaging material, such as bubble film, is pulled to the bottom of the film roll, the film roll is hot-melted by the hot melt unit installed on the table body, so that the two ends of the bubble film can be melted and bonded together, so that the bubble film encapsulates the film roll. The hot melt unit hot-melts the bubble film through a first hot melt structure and a second hot melt structure arranged opposite to each other. The first hot melt structure includes two driving rods arranged opposite to each other, and a hot melt rod is arranged between the two driving rods. The two ends of the hot melt rod are fixedly connected to the two driving rods respectively. The hot melt rod includes a first rod body, a heating wire and a high-temperature cloth. The opening of the groove is closed by setting the high-temperature cloth, and the bubble film is hot-melted by the high-temperature cloth, so that the bubble film is heated more evenly, thereby making the hot melting effect of the bubble film better. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] FIG1 is a first structural schematic diagram of a hot melt station provided in one embodiment of the present invention;

[0040] FIG2 is a second structural schematic diagram of a hot melt station provided in one embodiment of the present invention;

[0041] FIG3 is an enlarged structural view of section A of FIG2 ;

[0042] FIG4 is a schematic structural diagram of a hot melt unit provided in one embodiment of the present invention;

[0043] FIG5 is a schematic structural diagram of a hot melt first structure with a lifting structure provided by one embodiment of the present invention;

[0044] FIG6 is a schematic diagram of a first structure of a hot melt rod provided in one embodiment of the present invention;

[0045] FIG7 is a second structural diagram of a hot melt rod provided in one embodiment of the present invention;

[0046] FIG8 is an enlarged view of the structure of portion D of FIG6 ;

[0047] FIG9 is a schematic structural diagram of a driving rod provided in one embodiment of the present invention;

[0048] FIG10 is an exploded view of a driving rod provided in one embodiment of the present invention;

[0049] FIG11 is a schematic structural diagram of a hot melt structure in a first working state according to an embodiment of the present invention;

[0050] FIG12 is a left side view of FIG11;

[0051] 13 is a schematic structural diagram of a hot melt device in a second working state according to an embodiment of the present invention;

[0052] FIG14 is a schematic structural diagram of a third working state of a hot melt device provided by an embodiment of the present invention;

[0053] 15 is a schematic structural diagram of a hot melt device in a fourth working state according to an embodiment of the present invention;

[0054] FIG16 is an enlarged view of the structure of portion B of FIG5 ;

[0055] FIG17 is an enlarged view of the structure of section C in FIG5 ;

[0056] FIG18 is a schematic structural diagram of a first unwinding unit provided in one embodiment of the present invention;

[0057] FIG19 is a front view of a first unwinding unit provided in one embodiment of the present invention;

[0058] FIG20 is a schematic structural diagram of a first supporting structure provided by an embodiment of the present invention;

[0059] FIG21 is a schematic structural diagram of a third supporting structure provided by an embodiment of the present invention;

[0060] FIG22 is a schematic diagram of the installation structure of the traction unit and the hot melt table provided in one embodiment of the present invention;

[0061] FIG23 is a schematic structural diagram of a traction unit provided in one embodiment of the present invention;

[0062] FIG24 is an enlarged view of the structure of section E in FIG23;

[0063] FIG25 is a schematic diagram of a first structure of a second unwinding unit provided in one embodiment of the present invention;

[0064] FIG26 is a second structural schematic diagram of a second unwinding unit provided by one embodiment of the present invention;

[0065] FIG27 is a schematic structural diagram of a cutting unit provided in one embodiment of the present invention.

[0066] Main component symbols: 10-body, 20-first unwinding unit, 21-first supporting structure, 211-first mounting bracket, 2111-first limiting hole, 212-first supporting bracket, 213-second supporting bracket, 214-first driving member, 215-first limiting member, 2151-first limiting block, 22-second supporting structure, 221-second mounting bracket, 222-third supporting bracket, 223-fourth supporting bracket, 224-second driving member, 2241-first bidirectional motor, 2242-first screw rod, 23- Third mounting frame, 24-Third driving member, 25-Third supporting structure, 251-Fourth mounting frame, 252-Fifth supporting frame, 253-Sixth supporting frame, 254-Fourth driving member, 255-Second limiting member, 30-Traction unit, 31-Fifth driving member, 32-Sliding guide rail, 33-Clamping member, 331-Clamping claw, 40-Second unwinding unit, 41-Mounting seat, 42-Unwinding wheel, 43-Pressing wheel, 44-Rewinding wheel, 45-Sixth driving member, 46-Magnetic induction structure, 461-Magnetic induction switch, 462-Magnetic Components, 50-hot melt unit, 51-first hot melt structure, 511-driving rod, 5111-second rod body, 51111-first through hole, 51112-second through hole, 51113-third through hole, 5112-sliding rod, 51121-first part, 51122-second part, 51123-connecting block, 51124-bump, 5113-elastic member, 5114-linear bearing, 512-hot melt rod, 5121-first rod body, 51211-groove, 51212-adjustment hole, 5122-adding Hot wire, 5123-high-temperature cloth, 5124-silicone strip, 52-second hot melt structure, 53-drive structure, 531-fisheye bearing, 54-lifting structure, 541-motor, 5411-drive shaft, 5412-drive gear, 542-drive chain, 543-slide rail, 544-drive block, 545-drag chain box, 546-drag chain, 55-gear, M-smaller diameter film roll, M'-smaller diameter film roll, 60-cutting unit, 61-mounting rod, 62-cutter, 63-cutting cylinder, 70-rolling structure. DETAILED DESCRIPTION

[0067] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0068] In the present invention, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe the present invention and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0069] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0070] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0071] Furthermore, the terms "first," "second," and the like are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0072] The technical solution of the present invention will be further described below in conjunction with embodiments and drawings.

[0073] Example

[0074] Film rolls need to be wrapped to prevent damage during transport. Some rolls are wrapped with bubble wrap, while others are wrapped with bubble wrap and kraft paper. When wrapping film rolls with bubble wrap, the film rolls need to be heat-sealed to melt the ends of the bubble wrap and bond them together.

[0075] Existing hot-melt structures typically install a heating wire within a slot on a hot-melt rod. When powered on, the heating wire directly heats the bubble film. However, due to the relatively long length of bubble film to be melted, the heating wire must be extended accordingly. In this case, the distance between the bubble film and the heating wire is not always consistent, resulting in uneven heating of the bubble film by the heating wire and poor hot-melt performance.

[0076] Therefore, the present application provides a hot melt station. Referring to Figures 1 and 2, the hot melt station includes a platform body 10. A first unwinding unit 20 is provided on one side of the platform body 10. The first unwinding unit 20 is used to place the packaging material. The traction unit 30 is installed on the platform body 10, and the traction unit 30 is used to pull the packaging material to the bottom of the film roll. A second unwinding unit 40 is also installed on the platform body 10. The second unwinding unit 40 is used to stick double-sided tape on the packaging material when the traction unit 30 pulls the packaging material. A cutting unit 60 is also provided on the hot melt station. After the film roll is pulled, the cutting unit 60 cuts the packaging material. A hot melt unit 50 is also installed on the platform body 10. After the packaging material that needs to be hot-melted is pulled to the bottom of the film roll and cut, the hot melt unit 50 hot-melts the packaging material so that the film roll is packaged.

[0077] 4 , specifically, the hot melt unit 50 includes a first hot melt structure 51 and a second hot melt structure 52 disposed opposite each other, with one end of the first hot melt structure 51 being rotatably connected to one end of the second hot melt structure 52. A driving structure 53 is mounted on the first hot melt structure 51, and the driving structure 53 is used to drive the first hot melt structure 51 and the second hot melt structure 52 toward each other.

[0078] In one embodiment of the present invention, the first hot melt structure 51 and the second hot melt structure 52 have the same structure. The first hot melt structure 51 includes the two aforementioned driving rods 511. The two driving rods 511 are arranged facing each other, and a hot melt rod 512 is arranged between the two driving rods 511. The two ends of the hot melt rod 512 are respectively fixedly connected to the upper ends of the two driving rods 511.

[0079] In one embodiment of the present invention, referring to Figures 6-8, the hot melt rod 512 includes a first rod body 5121, a groove 51211 is provided along the length of the first rod body 5121, and a heating wire 5122 is installed on the bottom surface of the groove 51211. The hot melt rod 512 also includes a high-temperature cloth 5123, which is installed on the first rod body 5121 and covers the opening of the groove 51211. When the bubble film is hot-melted, the high-temperature cloth 5123 abuts the bubble film, and the heating wire 5122 transfers heat through the high-temperature cloth 5123. The high-temperature cloth 5123 is flattened on the first rod body 5121. When the high-temperature cloth 5123 is heated, the heat is evenly distributed across the entire extended surface, thereby better maintaining heating uniformity and achieving a better bubble film hot-melting effect.

[0080] In one embodiment of the present invention, the high-temperature cloth 5123 is compressed on both sides by a pressure plate and deployed at the opening of the groove 51211 of the first rod 5121. The pressure plate has a large surface area, thereby allowing the high-temperature cloth 5123 to be fixed more stably and preventing the high-temperature cloth 5123 from being torn.

[0081] In one embodiment of the present invention, the high temperature cloth 5123 can be glass fiber cloth, Teflon cloth, ceramic fiber cloth, carbon fiber cloth or silicone cloth.

[0082] Considering that the bubble film may adhere to the high-temperature cloth 5123 when in a molten state, the bubble film melted at high temperature may adhere to the glass fiber cloth, ceramic fiber cloth, carbon fiber cloth or silicone cloth. After the molten plastic adheres to the high-temperature cloth 5123, the adhered part of the plastic will continue to be heated and carbonized, resulting in an uneven surface of the high-temperature cloth 5123.

[0083] Preferably, in one embodiment of the present invention, high-temperature cloth 5123 is Teflon cloth. Teflon cloth has a very low surface energy, making it difficult to adhere to other materials. Molten plastic generally cannot adhere to Teflon cloth, so adhesion does not occur.

[0084] In one embodiment of the present invention, referring to Figure 8, the hot melt rod 512 further includes a silicone strip 5124, and the silicone sleeve is installed in the groove 51211. By arranging the silicone strip 5124, the heating wire 5122 is located entirely in the silicone strip 5124, so that when the heating wire 5122 is heated, the silicone strip 5124 is first heated, and then the heat of the silicone strip 5124 is radiated to the high-temperature cloth 5123, thereby achieving heating of the high-temperature cloth 5123, making the high-temperature cloth 5123 more evenly heated, and making the hot melting effect of the bubble film better.

[0085] In one embodiment of the present invention, the thickness of the silicone strip 5124 is greater than the depth of the groove 51211, and the silicone strip 5124 extends from inside the groove 51211 to outside the groove 51211. Referring to Figure 8 , the ends of the high-temperature cloth 5123 are fixedly connected to the first rod 5121. The middle of the high-temperature cloth 5123 abuts against the silicone strip 5124 and is tautly supported by the silicone strip 5124. When the high-temperature cloth 5123 contacts the bubble wrap, it adheres better to the bubble wrap, enhancing the heat-melting effect of the bubble wrap.

[0086] Because both the silicone strip 5124 and the high-temperature cloth 5123 need to extend to a certain length, the surfaces of the two hot-melt rods 512 used to clamp the bubble film are designated as clamping surfaces. Referring to Figures 4 and 8 , when the two hot-melt rods 512 are positioned facing each other and clamping the bubble film, the clamping surfaces may have poor flatness, meaning that portions of the clamping surfaces may be convex and portions concave under the support of the silicone strip 5124.

[0087] In one embodiment of the present invention, referring to FIG6 , an adjustment hole 51212 is provided on the side wall of the first rod 5121. The adjustment hole 51212 is a through hole and connects the groove 51211 to the outside. Before hot-melting the bubble film, the flatness of the clamping surfaces of the two hot-melt rods 512 is adjusted. Specifically, by inserting an ejector pin into the adjustment hole 51212, the recessed area of ​​the high-temperature cloth 5123 is ejected, thereby achieving a relatively excellent flatness of the clamping surface. This ensures that the hot-melt time of each portion of the bubble film is substantially uniform, thereby achieving a better hot-melt effect of the bubble film.

[0088] In one embodiment of the present invention, a plurality of adjustment holes 51212 are provided, and the plurality of adjustment holes 51212 are arranged at intervals, so that the flatness of the clamping surface can be adjusted more accurately.

[0089] In one embodiment of the present invention, the first rod body 5121 is configured as a cuboid, and the groove 51211 and the adjustment hole 51212 are respectively disposed on two opposite sides of the cuboid.

[0090] In one embodiment of the present invention, the spacing between two adjacent adjustment holes 51212 is 10-15 mm. Under this spacing, the silicone strip 5124 can be adjusted more accurately, so that the clamping surface between the two hot melt rods 512 has a higher flatness.

[0091] Specifically, in one embodiment of the present invention, the adjustment hole 51212 is a top screw hole, and a top screw is connected to the inner thread of the top screw hole. The top screw connected by the thread and the top screw hole is fixed in the adjusted position after rotation, so that the silicone strip 5124 can be more conveniently adjusted to the ejection position, thereby ensuring the flatness of the clamping surface between the two hot melt rods 512, and making the clamped bubble film heated more evenly.

[0092] In one embodiment of the present invention, referring to Figures 9 and 10, the drive rod 511 includes a second rod body 5111, to which a slide rod 5112 is slidably connected. One end of the slide rod 5112 is used to mount the hot melt rod 512. An elastic member 5113 is disposed between the slide rod 5112 and the second rod body 5111. One end of the elastic member 5113 is fixedly connected to the slide rod 5112, and the other end of the elastic member 5113 is fixedly connected to the second rod body 5111. When the slide rod 5112 moves away from the second rod body 5111, the elastic member 5113 acts to cause the slide rod 5112 to move closer to the second rod body 5111. The initial length of the drive rod 5111 is less than the smallest diameter film roll to be packaged. After the slide rod 5112 moves away from the second rod body 5111, its maximum length is greater than the largest film roll with the smallest diameter. After the hot melt unit 50 is replaced with the above-mentioned driving rod 511, when packaging film rolls of different sizes, under the action of the elastic member 5113, the sliding rod 5112 tends to move toward the second rod body 5111, thereby making the hot melt rod 512 always tightly attached to the film roll during the packaging process. The hot melt rod 512 presses the bubble film, and the bubble film can be tightly attached to film rolls of different sizes, so that the film roll packaging effect is better.

[0093] 9 and 10 , the second rod body 5111 is provided with a first through hole 51111 and a second through hole 51112. The first through hole 51111 passes through a side surface of the second rod body 5111, and the second through hole 51112 extends from one end of the second rod body 5111 to the first through hole 51111 and communicates with the first through hole 51111. The sliding rod 5112 is slidably connected within the second through hole 51112. The sliding rod 5112 is slidably connected to the second rod body 5111, and the elastic member 5113 is disposed within the second through hole 51112.

[0094] In one embodiment of the present invention, the elastic member 5113 may be a tension spring, a rubber band, a rubber tube, or the like, which has a tendency to retract after being stretched.

[0095] Preferably, in one embodiment of the present invention, in order to facilitate the installation and replacement of the elastic member 5113 , the elastic member 5113 is a tension spring.

[0096] 9 and 11 , after the slide rod 5112 and the second rod body 5111 are connected by a tension spring, when the slide rod 5112 moves upward, the slide rod 5112 tends to move downward under the action of the tension spring, thereby driving the hot melt rod 512 to be pressed tightly against the outer surface of the film roll.

[0097] In order to facilitate the processing of the through hole, in one embodiment of the present invention, the second through hole 51112 is configured as a round hole, and accordingly, the sliding rod 5112 is configured as a round rod.

[0098] Furthermore, in one embodiment of the present invention, referring to FIG10 , the sliding rod 5112 includes a first portion 51121 and a second portion 51122, which are arranged side by side. The sliding rod 5112 also includes a connecting block 51123, which is fixedly connected to one end of the first portion 51121 and the second portion 51122, respectively. Furthermore, two second through holes 51112 are correspondingly provided, and the first portion 51121 and the second portion 51122 are respectively installed in the two second through holes 51112, and the first portion 51121 and the second portion 51122 are both round rods. By providing two second through holes 51112, the sliding rod 5112 is made more stable during sliding.

[0099] Furthermore, in one embodiment of the present invention, with reference to FIG10 , a protrusion 51124 is further provided on the slide bar 5112, and the protrusion 51124 is fixedly connected to the other end of the first portion 51121 and the second portion 51122, respectively. The protrusion 51124 is located above the second through hole 51112, and the protrusion 51124 is used to abut against the second rod body 5111. When the protrusion 51124 abuts against the second rod body 5111, the slide bar 5112 cannot continue to move toward the elastic member 5113. By providing a suitable protrusion 51124, the elastic member 5113 can always be in an extended state, that is, the protrusion 51124 is initially in close contact with the second rod body 5111, so that the hot melt rod 512 always stays in close contact with the film roll during operation.

[0100] Specifically, in one embodiment of the present invention, referring to FIG10 , a linear bearing 5114 is disposed within the second through hole 51112. The outer wall of the linear bearing 5114 is fixed to the inner wall of the second through hole 51112, and the inner wall of the linear bearing 5114 is slidably connected to the slide bar 5112. That is, corresponding linear bearings 5114 are disposed on each of the first portion 51121 and the second portion 51122 of the slide bar 5112, thereby enabling smooth sliding of the first portion 51121 and the second portion 51122.

[0101] In one embodiment of the present invention, two linear bearings 5114 are respectively provided on the first portion 51121 and the second portion 51122 , so that the sliding rod 5112 can slide more smoothly.

[0102] In one embodiment of the present invention, in order to facilitate the installation of the linear bearing 5114 , a third through hole 51113 is provided on the side wall of the second rod 5111 , and the third through hole 51113 is communicated with the second through hole 51112 .

[0103] When the bubble film needs to be hot-melted, the driving structure 53 is used to drive the first hot-melt structure 51 and the second hot-melt structure 52 to approach each other, so that the hot-melt rod 512 is tightly attached to the film roll. In conjunction with Figures 14 and 15, the hot-melt rod 512 moves upward along the side of the film roll until it reaches the top of the film roll. At this time, the two ends of the bubble film are heated and melted at the top of the film roll by the hot-melt rod 512 and combined into a whole, thereby completing the packaging of the film roll. After adjusting the flatness of the high-temperature cloth 5123 of the two opposing silicone strips 5124 through the adjustment hole 51212, the bubble film is clamped between the two opposing hot-melt rods 512 in an optimal plane, so that the hot-melt conditions of the bubble film at each position are basically the same, thereby achieving the best hot-melt effect of the bubble film.

[0104] In one embodiment of the present invention, the hot melt unit 50 further includes a lifting structure 54 . Referring to FIG. 5 , the lifting structure 54 is used to drive the first hot melt structure 51 and the second hot melt structure 52 to move up and down.

[0105] Specifically, in one embodiment of the present invention, referring to Figures 17 and 18, the lifting structure 54 includes a second bidirectional motor 541. A transmission tooth 5412 is fixedly connected to the output shaft of the second bidirectional motor 541. The transmission tooth 5412 is in driving connection with a transmission chain 542. A transmission block 544 is fixedly connected to the chain link of the transmission chain 542. The gears 55 of the first hot melt structure 51 and the second hot melt structure 52 are both rotatably connected to the transmission block 544. When the second bidirectional motor 541 drives the transmission tooth 5412 to rotate, the transmission chain 542 rotates, and the transmission block 544 fixed to the transmission chain 542 moves up and down with the transmission chain 542, thereby driving the first hot melt structure 51 and the second hot melt structure 52 to follow the up and down movement.

[0106] Preferably, in one embodiment of the present invention, a slide rail 543 is further provided. The slide rail 543 is provided beside the transmission block 544. The transmission block 544 is slidably connected to the slide rail 543. During the movement of the transmission block 544, the slide rail 543 not only guides the transmission block 544, but also prevents the transmission block 544 from shaking under the drive of the transmission chain 542, so that the first hot melt structure 51 and the second hot melt structure 52 can move up and down stably.

[0107] Preferably, in one embodiment of the present invention, the lifting structure 54 further includes a drag chain 546 and a drag chain 546 box 545. The drag chain 546 box 545 is mounted beside the slide rail 543, and the drag chain 546 is placed within the drag chain 546 box 545. One end of the drag chain 546 is fixed within the drag chain 546 box 545, and the other end of the drag chain 546 is fixedly connected to the transmission block 544. The transmission block 544 is simultaneously limited by the drag chain 546 and the slide rail 543, ensuring stability during its upward and downward movement.

[0108] Of course, in one embodiment of the present invention, two lifting structures 54 are provided, and the two lifting structures 54 are respectively located on both sides of the first hot melt structure 51. Driven by the two lifting structures 54, the first hot melt structure 51 and the second hot melt structure 52 can be stably lifted and lowered.

[0109] At the same time, the second bidirectional motor 541 is arranged between the two driving rods 511, and the second bidirectional motor 541 is provided with two output shafts. Transmission teeth 5412 are installed on the two output shafts of the second bidirectional motor 541, so that when the second bidirectional motor 541 is running, the output shaft of the second bidirectional motor 541 can drive the lifting structure 54 on both sides of the first hot melt structure 51 to work.

[0110] 11 and 14 , the elastic member 5113 can only be extended to a fixed length. When the film roll to be packaged is large, the travel of the driving rod 511 is insufficient.

[0111] Furthermore, in one embodiment of the present invention, in combination with Figures 12 and 14, the first hot melt structure 51 and the second hot melt structure 52 are raised to a suitable height through the cooperation of the lifting structure 54 and the driving rod 511, and then the driving rods 511 at the first hot melt structure 51 and the second hot melt structure 52 are extended and the hot melt rods 512 are tightly attached to the outer surface of the film roll, so that the bubble film on the outer surface of the film roll can be tightly attached to the film roll, so that the packaging effect of the film roll is better.

[0112] In one embodiment of the present invention, since there is a film roll placement space below the hot melt rod 512 , as shown in FIG12 , the rising of the first hot melt structure 51 and the second hot melt structure 52 does not interfere with the normal packaging of the film roll.

[0113] 1 and 18 , the first unwinding unit 20 includes a first supporting structure 21 and a second supporting structure 22. The first supporting structure 21 is used to place the bubble film, and the second supporting structure 22 is used to place the kraft paper.

[0114] Specifically, in one embodiment of the present invention, the first support structure 21 includes a first mounting frame 211, to which a first support frame 212 and a second support frame 213 are slidably connected, and the first support frame 212 and the second support frame 213 are respectively arranged at both ends of the first support frame 212. A first driving member 214 is also installed on the first mounting frame 211, and the first driving member 214 is used to drive the first support frame 212 to slide on the first mounting frame 211. A first limiting member 215 is also provided on the first mounting frame 211, and the first limiting member 215 is used to limit the second support frame 213 on the first mounting frame 211. After the first supporting frame 212 is driven to move by the first driving member 214, the distance between the first supporting frame 212 and the second supporting frame 213 changes, thereby adapting to the loading of packaging materials of different widths.

[0115] Referring to Figure 20 , in order to facilitate the display of the detailed structure of the first support structure 21, the spacing between the first support frame 212 and the second support frame 213 is reduced. The first mounting frame 211 is provided with a plurality of first limiting holes 2111 spaced apart from each other, and the second supporting frame 213 is fixedly connected to a first limiting block 2151. By inserting a limiting rod into the limiting hole, the limiting block can be fixed, thereby fixing the position of the second supporting frame 213 and the first mounting frame 211 relative to each other.

[0116] 1 and 18, the second support structure 22 includes a second mounting frame 221, and a third support frame 222 and a fourth support frame are slidably connected to the second mounting frame 221. A second driving member is also installed on the second mounting frame 221, and the second driving member is used to drive the third support frame 222 and the fourth support frame to move closer to or away from each other.

[0117] Specifically, referring to Figure 18, the second driving member includes a first bidirectional motor 2241, and the two output ends of the first bidirectional motor 2241 are transmission-connected to two first screw rods 2242. The two first screw rods 2242 are respectively threadedly connected to the third support frame 222 and the fourth support frame. When the first screw rod 2242 rotates, the third support frame 222 and the fourth support frame approach or move away from each other, thereby realizing the clamping of the packaging material.

[0118] In one embodiment of the present invention, the packaging material may be bubble film or kraft paper.

[0119] In one embodiment of the present invention, the first supporting structure 21 is used to place the bubble film, and the second supporting structure 22 is used to place the kraft paper.

[0120] In actual use, the packaging material can be freely selected according to the packaging film roll. It can be packaged with bubble film alone or with kraft paper and bubble film.

[0121] In one embodiment of the present invention, when kraft paper and bubble film are used for packaging, the width of the kraft paper is slightly larger than the width of the bubble film. It is only necessary to stick double-sided tape on both sides of the kraft paper. After the kraft paper is bonded with the double-sided tape, the bubble film is fixed inside the kraft paper. After the two ends of the kraft paper are fixed, the film roll is packaged.

[0122] When using kraft paper and bubble film to package the film roll, as shown in Figure 3, the rolling structure 70 will drive the film roll and kraft paper to rotate, so that the kraft paper rotates around the film roll once, and the two ends of the kraft paper will be stuck to the film roll, thereby packaging the film roll.

[0123] The rolling structure 70 is two rollers spaced apart from each other. This structure is relatively common and will not be described in detail here.

[0124] Of course, in actual use, due to the large mass of kraft paper, it is necessary to add motors to the third support frame 222 and the fourth support frame for loading kraft paper to drive the kraft paper to rotate, thereby replicating the traction structure to pull the kraft paper.

[0125] In one embodiment of the present invention, the first unwinding unit 20 also includes a third mounting frame 23 and a third driving member 24. The first mounting frame 211 is installed on the second mounting frame 221, and the second mounting frame 221 is slidably connected to the third mounting frame 23. The third driving member 24 is used to drive the second mounting frame 221 to slide on the third mounting frame 23.

[0126] In actual use, it is necessary to ensure that the center lines of the kraft paper and the bubble film are aligned with the center line of the film roll. In one embodiment of the present invention, the bubble film and the kraft paper are first aligned, and then the entire bubble film and kraft paper are aligned with the film roll.

[0127] Specifically, referring to Figures 1 and 18-20, the third support frame 222 and the fourth support frame are first driven away from each other by the second driving member. After the kraft paper is placed between the third support frame 222 and the fourth support frame, the second driving member drives the third support frame 222 and the fourth support frame to move closer to each other to clamp the kraft paper.

[0128] After the kraft paper is installed, the first drive member 214 drives the first support frame 212 away from the second support frame 213. The bubble film is then placed between the first support frame 212 and the second support frame 213. The first drive member 214 drives the second support frame 213 closer to the second support frame 213, clamping the bubble film so that the bubble film is fixed between the first support frame 212 and the second support frame 213. The first drive member 214 then stops working, pushing the second support frame 213 to align the bubble film and the kraft paper. After the alignment is completed, the limit rod is inserted into the first limit hole 2111, so that the positions of the first limit block 2151 and the first mounting frame 211 are relatively fixed, thereby also fixing the positions of the second support frame 213 and the first mounting frame 211 relatively fixed. The first drive member 214 then drives the first support frame 212 to move closer to the second support frame 213 to clamp the bubble film.

[0129] After the bubble film and the kraft paper are aligned, the third driving member 24 on the third mounting frame 23 works, and the third driving member 24 drives the second mounting frame 221 to slide on the third mounting frame 23, thereby making the kraft paper and the film roll move as a whole relative to the film roll. When the kraft paper and the film roll are aligned, the surface kraft paper and the bubble film are aligned with the film roll, and the third driving member 24 stops working.

[0130] In one embodiment of the present invention, the first driving member 214 is a rodless cylinder, which can be pushed when not in operation.

[0131] In one embodiment of the present invention, the third driving member 24 is an electric push rod.

[0132] In one embodiment of the present invention, the first unwinding unit 20 further includes a third support structure 25. Referring to FIG. 2 , the third support structure 25 and the first support structure 21 are disposed oppositely on two sides of the platform 10. The third support structure 25 is used to place the bubble film.

[0133] In one embodiment of the present invention, the third support structure 25 and the first support structure 21 are used to accommodate bubble wrap of different sizes. For example, if a 60 cm bubble wrap is placed on the first support structure 21, a 90 cm bubble wrap can be placed on the third support structure 25. Furthermore, when a film roll requires bubble wrap of different widths, the bubble wrap of different widths can be directly pulled by the pulling unit 30 without removing the bubble wrap from the first support structure 21, making film roll packaging more convenient.

[0134] Specifically, referring to Figure 21 , the third support structure 25 includes a fourth mounting frame 251, to which a fifth supporting frame 252 and a sixth supporting frame are slidably connected. A fourth driving member 254 is also mounted on the fourth mounting frame 251 for driving the fifth supporting frame 252 to slide on the fourth mounting frame 251. A second limiting member 255 is also provided on the fourth mounting frame 251 for limiting the sixth supporting frame 253 to the fourth mounting frame 251.

[0135] The operating principle of the third support structure 25 is similar to that of the first support structure 21 and will not be described in detail here.

[0136] In one embodiment of the present invention, based on the first supporting structure 21 and the third supporting structure 25 being respectively provided at both ends of the platform 10 , the traction structure needs to pull the bubble membranes at both ends of the platform 10 .

[0137] Specifically, as shown in Figure 22, the traction unit 30 is mounted on the platform 10. Referring to Figures 23 and 24, the traction unit 30 includes a sliding guide rail 32 mounted on the platform 10, a clamping member 33 slidably connected to the sliding guide rail 32, and a fifth driving member 31 for driving the clamping member 33 to move along the sliding guide rail 32.

[0138] Referring to Figure 24 , each end of the clamping member 33 is provided with a clamping claw 331. In conjunction with Figure 1 , when the clamping member 33 moves toward the first support structure 21, the clamping claw 331 on the first support structure 21 side can clamp the bubble film or the bubble film and kraft paper. When the clamping member 33 moves toward the third support structure 25, the clamping claw 331 on the third support structure 25 side can clamp the bubble film.

[0139] The clamping jaws 331 are conventional, their opening and closing controlled by a pneumatic cylinder. To pull bubble wrap or kraft paper, the film or paper is manually pulled toward the clamping jaws, and then the pneumatic cylinder drives the jaws closed, clamping the packaging material. The third drive member 24 then drives the clamping member 33, moving the packaging material beneath the film roll.

[0140] Furthermore, in one embodiment of the present invention, two sliding guide rails 32 are provided, and the two sliding guide rails 32 are correspondingly provided on both sides of the packaging material, and two clamping members 33 are correspondingly provided, and the two clamping members 33 respectively clamp the two sides of the packaging material.

[0141] Furthermore, in one embodiment of the present invention, two clamping claws are provided on the same side of each clamping member 33 , and the two clamping claws respectively clamp two sides of the packaging material, so that the packaging material can be pulled more stably.

[0142] Specifically, referring to Figures 25 and 26, the second unwinding unit 40 includes a mounting base 41 mounted on the platform 10. A unwinding wheel 42 and a take-up wheel 44 are rotatably connected to the mounting base 41. The unwinding wheel 42 is used to place the double-sided film, and the take-up wheel 44 is used to take up the waste paper. The second unwinding unit 40 also includes a sixth driving member 45, which is used to drive the take-up wheel 44 to rotate, thereby driving the unwinding wheel 42 to rotate. A pressure wheel 43 is disposed between the take-up wheel 44 and the unwinding wheel 42. One end of the double-sided tape passes around the pressure wheel 43 and is connected to the take-up wheel 44. The double-sided tape adheres to the kraft paper, while the waste paper portion is connected to the take-up wheel 44. When the sixth driving member 45 drives the take-up wheel 44 to rotate, the take-up wheel 44 takes up the waste paper, and the waste paper drives the unwinding wheel 42 to rotate. The pressure wheel 43 acts to keep the double-sided tape adhered to the kraft paper.

[0143] In one embodiment of the present invention, an elastic member or a cylinder is usually provided at the pressure wheel 43 so that the pressure wheel 43 can be pressed tightly against the kraft paper.

[0144] Preferably, in an embodiment of the present invention, the second unwinding unit 40 further includes a magnetic sensing unit, and the magnetic sensing unit is used to determine whether the unwinding wheel 42 is rotating.

[0145] The magnetic induction unit includes a magnetic induction switch 461 and a magnetic member 462. The magnetic induction unit can be mounted on the unwinding wheel 42, and the magnetic member 462 can be mounted on the mounting base 41. The magnetic induction unit can also be mounted on the mounting base 41, and the magnetic member 462 can also be mounted on the unwinding wheel 42.

[0146] Magnetic element 462 regularly and intermittently triggers magnetic induction switch 461, causing surface unwinding wheel 42 to rotate and the double-sided tape to unwind normally. When magnetic element 462 does not trigger magnetic induction switch 461, surface unwinding wheel 42 does not rotate, indicating that the double-sided tape has broken or is exhausted. Magnetic induction switch 461 sends a signal back to the controller, notifying the operator to check the double-sided tape.

[0147] In one embodiment of the present invention, the sixth driving member 45 may be configured as a motor.

[0148] 1 , the cutting unit 60 is disposed between the hot melt unit 50 and the second unwinding unit 40 . When the traction structure pulls the film roll to move a set length, the cutting unit 60 operates and cuts the packaging material.

[0149] Referring to Figure 27 , the cutting mechanism includes a mounting rod 61 mounted on the platform 10. A cutting cylinder 63 is mounted on the mounting rod 61. A cutter 62 is also slidably connected to the mounting rod 61. The cutting cylinder 63 drives the cutter 62 up and down. When the pulling unit 30 has pulled the packaging material to a sufficient length, the cutting cylinder 63 drives the cutter 62 downward, thereby severing the packaging material.

[0150] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all such changes or substitutions should fall within the scope of protection of the present invention.

Claims

1. A hot melt station for film roll packaging, characterized in that: include: Taiwan body; A first unwinding unit, used for placing packaging materials; A traction unit, installed on the platform, for pulling the packaging material under the film roll; A second unwinding unit, mounted on the platform, for attaching double-sided tape to the packaging material; a cutting unit, disposed between the hot-melt unit and the second unwinding unit, for cutting the packaging material; A hot-melt unit is installed on the platform and is used to hot-melt the packaging material. The hot-melt unit includes: A first hot-melt structure and a second hot-melt structure are arranged facing each other, and one end of the first hot-melt structure is rotatably connected to one end of the second hot-melt structure; A driving structure, wherein the driving structure is installed on the first hot-melt structure, and the driving structure is used to drive the first hot-melt structure and the second hot-melt structure to approach each other; The first hot melt structure is the same as the first hot melt structure, and the first hot melt structure includes: Two driving rods arranged opposite to each other; and A hot melt rod, wherein both ends of the hot melt rod are respectively fixedly connected to the two driving rods, and the hot melt rod comprises a first rod body, a heating wire and a high-temperature cloth. The first rod body is provided with a groove along its extension direction, the heating wire is installed on the bottom surface of the groove, the high-temperature cloth is installed on the first rod body, and the high-temperature cloth closes the opening of the groove, and the high-temperature cloth is used to abut against the bubble film.

2. A hot melt station for film roll packaging according to claim 1, characterized in that: The first unwinding unit comprises a first supporting structure and a second supporting structure, the first supporting structure is used to place the bubble film, and the second supporting structure is used to place the kraft paper; The first supporting structure includes a first mounting frame, a first supporting frame, a second supporting frame, a first driving member and a first limiting member, the first supporting frame is slidably connected to the first mounting frame, the first driving member is used to drive the first supporting frame to slide, the second supporting frame is slidably connected to the first mounting frame, and the first limiting member is used to limit the second supporting frame to the first mounting frame; The second supporting structure includes a second mounting frame, a third supporting frame, a fourth supporting frame and a second driving member. The third supporting frame and the fourth supporting frame are both slidably connected to the second mounting frame. The second driving member is used to drive the third supporting frame and the fourth supporting frame to move closer to or away from each other.

3. A hot melt station for film roll packaging according to claim 2, characterized in that: The first unwinding unit also includes a third mounting frame and a third driving member. The first mounting frame is mounted on the second mounting frame. The second mounting frame is slidably connected to the third mounting frame. The third driving member is used to drive the second mounting frame to slide on the third mounting frame.

4. A hot melt station for film roll packaging according to claim 1, characterized in that: The hot melt rod also includes a silicone strip, which is filled in the groove. The heating wire is installed inside the silicone strip. The silicone strip extends from the inside of the groove to the outside of the groove. The high-temperature cloth is used to encapsulate the silicone strip.

5. A hot melt station for film roll packaging according to claim 1, characterized in that: An adjustment hole is arranged on the side wall of the first rod body. The adjustment hole is a through hole. The adjustment hole connects the groove with the outside. There are a plurality of adjustment holes, and the plurality of adjustment holes are arranged at intervals.

6. A hot melt station for film roll packaging according to claim 1, characterized in that: The driving rod comprises: a second rod body, wherein the second rod body is provided with a first through hole and a second through hole, wherein the first through hole passes through a side surface of the second rod body, and the second through hole extends from one end of the second rod body to the first through hole; A slide rod is installed in the second through hole, the slide rod is slidably connected to the second rod body, and one end of the slide rod is used to install a hot melt rod; An elastic member is arranged in the second through hole, one end of the elastic member is connected to the second rod body, the other end of the elastic member is connected to the other end of the sliding rod, and the elastic member is used to drive the sliding rod to approach the second rod body.

7. A hot melt station for film roll packaging according to claim 6, characterized in that: The slide bar comprises a first part, a second part and a convex block, wherein the first part and the second part are arranged side by side; the slide bar comprises a connecting block, wherein the connecting block is fixedly connected to one end of the first part and the second part respectively, and the convex block is fixedly connected to the other end of the first part and the second part respectively, and the convex block is used to abut against the second rod body; A third through hole is disposed on the side wall of the second rod body, and the third through hole is communicated with the second through hole.

8. A hot melt station for film roll packaging according to claim 2, characterized in that: The first unwinding unit further includes a third supporting structure, and the third supporting structure and the first supporting structure are arranged on both sides of the platform facing each other; The third supporting structure includes a fourth mounting frame, a fifth supporting frame, a sixth supporting frame, a fourth driving member and a second limiting member. The fifth supporting frame and the sixth supporting frame are both slidably connected to the fourth mounting frame. The fourth driving member is used to drive the fifth supporting frame to slide, and the second limiting member is used to limit the sixth supporting frame to the fourth mounting frame. 9..A hot melt station for film roll packaging according to claim 1, characterized in that: The traction unit comprises a fifth driving member, a sliding guide rail and a clamping member, wherein the clamping member is slidably connected to the sliding guide rail, and the fifth driving member is used to drive the clamping member to move along the sliding guide rail; There are two sliding guide rails, which are correspondingly arranged on both sides of the packaging material. There are two clamping members correspondingly arranged, which are used to clamp the packaging material.

10. A hot melt station for film roll packaging according to claim 1, characterized in that: The second unwinding unit comprises a mounting seat, an unwinding wheel, a pinch wheel, a winding wheel and a sixth driving member, wherein the unwinding wheel, the pinch wheel and the winding wheel are all rotatably connected to the mounting seat, the double-sided film is mounted on the unwinding wheel, one end of the double-sided film passes around the pinch wheel and is fixed on the winding wheel, and the sixth driving member is used to drive the winding wheel to rotate; The second unwinding unit further includes a magnetic sensing structure, and the magnetic sensing structure is used to determine whether the unwinding wheel is rotating.

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