A hot melt table for film roll packaging

Abstract

This invention relates to the field of packaging technology, specifically disclosing a hot-melt station for film roll packaging. The hot-melt station includes a platform body, on which are mounted a first unwinding unit for placing packaging material, a second unwinding unit for attaching double-sided adhesive to the packaging material, and a traction unit for pulling the packaging material under the film roll. After the packaging material is pulled under the film roll, the hot-melt unit on the platform heat-melts the film roll, bonding the two ends of the bubble wrap together, thus sealing the film roll. The hot-melt unit heats the bubble wrap through a first hot-melt structure and a second hot-melt structure. The first hot-melt structure includes two drive rods with a hot-melt rod positioned between them, and both ends of the hot-melt rod are fixedly connected to the two drive rods respectively. The hot-melt rod includes a first rod body, a heating wire, and a high-temperature cloth. By using the high-temperature cloth to seal the opening of the groove and to heat-melt the bubble wrap, the bubble wrap is heated more evenly, resulting in a better heat-melting effect.

Description

Technical Field

[0001] This invention relates to the field of packaging technology, and in particular to a hot melt station for film roll packaging. Background Technology

[0002] When packaging the film rolls, they need to be packaged with bubble wrap or kraft paper. Kraft paper is glued together with double-sided tape, while bubble wrap needs to be heat-melted on a hot melt table to bond the two ends of the bubble wrap into a whole.

[0003] In existing hot melt stations, the heating wire is installed in the slot of the hot melt rod, and the heating wire directly heats the bubble film after being energized. However, both the length of the heating wire and the length of the bubble film that needs to be melted are relatively long.

[0004] During the heat-melting process of bubble wrap, the heating wire on the heat-melting rod directly heats the bubble wrap. The distance between the heating wire and the bubble wrap varies at different locations. This uneven heating results in poor heat-melting of the bubble wrap.

[0005] Therefore, existing technologies still need to be improved and developed. Summary of the Invention

[0006] This invention discloses a hot melt station for film roll packaging, which improves the problem of poor hot melt effect of bubble wrap.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A hot melt station for film roll packaging, comprising:

[0009] Platform;

[0010] The first unwinding unit is used to place packaging materials;

[0011] A traction unit, mounted on the platform, is used to pull the packaging material below the film roll;

[0012] The second unwinding unit is installed on the platform and is used to attach double-sided tape to the packaging material;

[0013] A cutting unit, disposed between the hot-melt unit and the second unwinding unit, is used to cut the packaging material;

[0014] A heat-melting unit, mounted on a platform, is used to heat-melt the packaging material. The heat-melting unit includes:

[0015] A first hot-melt structure and a second hot-melt structure are arranged opposite to each other, with one end of the first hot-melt structure and one end of the second hot-melt structure being rotatably connected.

[0016] A driving structure is mounted 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 move closer to each other;

[0017] The first hot-melt structure is the same as the first hot-melt structure, and the first hot-melt structure includes:

[0018] Two drive rods facing each other; and

[0019] A hot melt rod, the two ends of which are fixedly connected to two drive rods respectively. 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 closes the opening of the groove. The high-temperature cloth is used to abut against the bubble wrap.

[0020] Preferably, the first unwinding unit includes a first support structure and a second support structure, wherein the first support structure is used to place bubble wrap and the second support structure is used to place kraft paper.

[0021] The first support structure includes a first mounting frame, a first support frame, a second support frame, a first driving member, and a first limiting member. The first support frame is slidably connected to the first mounting frame. The first driving member is used to drive the first support frame to slide. The second support frame is slidably connected to the first mounting frame. The first limiting member is used to limit the second support frame to the first mounting frame.

[0022] The second support structure includes a second mounting bracket, a third support bracket, a fourth support bracket, and a second driving component. The third support bracket and the fourth support bracket are slidably connected to the second mounting bracket. The second driving component is used to drive the third support bracket and the fourth support bracket to move closer to or further away from each other.

[0023] Preferably, the first unwinding unit further includes a third mounting bracket and a third driving member. The first mounting bracket is mounted on the second mounting bracket, the second mounting bracket is slidably connected to the third mounting bracket, and the third driving member is used to drive the second mounting bracket to slide on the third mounting bracket.

[0024] Preferably, the hot melt rod further includes a silicone strip, which fills 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.

[0025] Preferably, an adjustment hole is provided on the side wall of the first rod body. The adjustment hole is a through hole that connects the groove to the outside. Several adjustment holes are provided, and the adjustment holes are spaced apart.

[0026] Preferably, the drive rod includes:

[0027] The second rod body has a first through hole and a second through hole. The first through hole passes through the side of the second rod body, and the second through hole extends from one end of the second rod body to the first through hole.

[0028] A slide rod is installed in the second through hole, and the slide rod is slidably connected to the second rod body. One end of the slide rod is used to install a hot melt rod.

[0029] An elastic element is disposed in the first through hole. One end of the elastic element is connected to the second rod body, and the other end of the elastic element is connected to the other end of the slide rod. The elastic element is used to drive the slide rod to move closer to the second rod body.

[0030] Preferably, the slide bar includes a first part, a second part, and a protrusion, with the first part and the second part arranged side by side; the slide bar includes a connecting block, which is fixedly connected to one end of the first part and the second part respectively, and the protrusion is fixedly connected to the other end of the first part and the second part respectively, and the protrusion is used to abut against the second rod body;

[0031] A third through hole is provided on the side wall of the second rod, and the third through hole communicates with the second through hole.

[0032] Preferably, the first unwinding unit further includes a third support structure, which is disposed on both sides of the platform facing the first support structure;

[0033] The third support structure includes a fourth mounting bracket, a fifth support bracket, a sixth support bracket, a fourth driving member, and a second limiting member. The fifth support bracket and the sixth support bracket are slidably connected to the fourth mounting bracket. The fourth driving member is used to drive the fifth support bracket to slide, and the second limiting member is used to limit the sixth support bracket to the fourth mounting bracket.

[0034] Preferably, the traction unit includes 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;

[0035] Two sliding guide rails are provided, and the two sliding guide rails are correspondingly arranged on both sides of the packaging material. Two clamping members are correspondingly provided, and the clamping members are used to clamp the packaging material.

[0036] Preferably, the second unwinding unit includes a mounting base, an unwinding wheel, a pressure wheel, a take-up wheel, and a sixth driving member. The unwinding wheel, the pressure wheel, and the take-up wheel are all rotatably connected to the mounting base. The double-sided adhesive roll is mounted on the unwinding wheel, and one end of the double-sided adhesive roll passes around the pressure wheel and is fixed to the take-up wheel. The sixth driving member is used to drive the take-up wheel to rotate.

[0037] The second unwinding unit also includes a magnetic induction structure, which is used to determine whether the unwinding wheel is rotating.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0039] This invention provides a hot-melt table for film roll packaging. The hot-melt table includes a table body, on which are mounted a first unwinding unit for placing packaging material, a second unwinding unit for attaching double-sided adhesive to the packaging material, and a traction unit for pulling the packaging material under the film roll. After the packaging material, such as bubble wrap, is pulled under the film roll, the hot-melt unit mounted on the table body heats and melts the film roll, thereby melting and bonding the two ends of the bubble wrap together, thus sealing the film roll with bubble wrap. The hot-melt unit heats and melts the bubble wrap through a first hot-melt structure and a second hot-melt structure arranged opposite each other. The first hot-melt structure includes two opposing drive rods with a hot-melt rod positioned between them, and both ends of the hot-melt rod are fixedly connected to the two drive rods respectively. The hot-melt rod includes a first rod body, a heating wire, and a high-temperature cloth. By using the high-temperature cloth to seal the opening of the groove and heat-melting the bubble wrap, the bubble wrap is heated more evenly, resulting in a better heat-melting effect. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of the first structure of a hot melt station provided in an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the second structure of a hot melt station provided in an embodiment of the present invention;

[0042] Figure 3 for Figure 2 Enlarged view of the A-section structure;

[0043] Figure 4 This is a schematic diagram of the structure of a hot-melt unit provided in an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the structure of a first heat-melting device with a lifting structure according to an embodiment of the present invention;

[0045] Figure 6 This is a schematic diagram of the first structure of a hot melt rod provided in an embodiment of the present invention;

[0046] Figure 7 This is a schematic diagram of the second structure of a hot melt rod provided in an embodiment of the present invention;

[0047] Figure 8 for Figure 6 Enlarged view of the structure of part D;

[0048] Figure 9 This is a schematic diagram of the structure of a drive rod provided in an embodiment of the present invention;

[0049] Figure 10 An exploded view of a drive rod provided in an embodiment of the present invention;

[0050] Figure 11 This is a schematic diagram of the first working state of the hot-melt structure provided in an embodiment of the present invention;

[0051] Figure 12 for Figure 11 The left view;

[0052] Figure 13 This is a schematic diagram of the second working state of the hot-melt device provided in an embodiment of the present invention;

[0053] Figure 14 This is a schematic diagram of the third working state of the hot-melt device provided in an embodiment of the present invention;

[0054] Figure 15 This is a schematic diagram of the fourth working state of the hot-melt device provided in an embodiment of the present invention;

[0055] Figure 16 for Figure 5 Enlarged view of the structure of section B;

[0056] Figure 17 for Figure 5 Enlarged view of the C-section structure;

[0057] Figure 18 This is a schematic diagram of the structure of the first unwinding unit provided in an embodiment of the present invention;

[0058] Figure 19 This is a front view of a first unwinding unit provided in an embodiment of the present invention;

[0059] Figure 20 This is a schematic diagram of the first support structure provided in an embodiment of the present invention;

[0060] Figure 21 This is a schematic diagram of the third support structure provided in an embodiment of the present invention;

[0061] Figure 22 This is a schematic diagram of the installation structure of the traction unit and the hot melt table according to an embodiment of the present invention;

[0062] Figure 23 This is a schematic diagram of the structure of a traction unit provided in an embodiment of the present invention;

[0063] Figure 24 for Figure 23 Enlarged view of the E section structure in the image;

[0064] Figure 25 This is a schematic diagram of the first structure of the second unwinding unit provided in an embodiment of the present invention;

[0065] Figure 26 This is a schematic diagram of the second structure of the second unwinding unit provided in an embodiment of the present invention;

[0066] Figure 27 This is a schematic diagram of the structure of a cutting unit provided in an embodiment of the present invention.

[0067] Key component symbols: 10-platform, 20-first unwinding unit, 21-first support structure, 211-first mounting bracket, 2111-first limiting hole, 212-first support frame, 213-second support frame, 214-first driving component, 215-first limiting component, 2151-first limiting block, 22-second support structure, 221-second mounting bracket, 222-third support frame, 223-fourth support frame, 224-second driving component, 2241-first bidirectional motor, 2242-first lead screw, 23- Third mounting bracket, 24-Third drive component, 25-Third support structure, 251-Fourth mounting bracket, 252-Fifth support bracket, 253-Sixth support bracket, 254-Fourth drive component, 255-Second limiting component, 30-Traction unit, 31-Fifth drive component, 32-Sliding guide rail, 33-Clamping component, 331-Gripper, 40-Second unwinding unit, 41-Mounting base, 42-Unwinding roller, 43-Pressure roller, 44-Rewinding roller, 45-Sixth drive component, 46-Magnetic structure, 461-Magnetic switch, 462-Magnetic Component, 50-Hot melt unit, 51-First hot melt structure, 511-Drive rod, 5111-Second rod body, 51111-First through hole, 51112-Second through hole, 51113-Third through hole, 5112-Slide rod, 51121-First part, 51122-Second part, 51123-Connecting block, 51124-Protrusion, 5113-Elastic element, 5114-Linear bearing, 512-Hot melt rod, 5121-First rod body, 51211-Groove, 51212-Adjusting hole, 5122-Addition 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 membrane roll, M'-Smaller diameter membrane roll, 60-Cutting unit, 61-Mounting rod, 62-Cutter, 63-Cutting cylinder, 70-Rolling structure. Detailed Implementation

[0068] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0069] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.

[0070] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0071] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0072] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0073] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings.

[0074] Example

[0075] The film rolls need to be packaged to prevent damage during transportation. Some rolls are packaged with bubble wrap, while others are packaged with both bubble wrap and kraft paper. When the rolls are packaged with bubble wrap, they need to be heat-sealed to melt and bond the ends of the bubble wrap together.

[0076] Existing hot-melt structures typically install a heating wire in a slot within a hot-melt rod, which directly heats the bubble film when energized. However, because the length of the bubble film to be hot-melted is relatively long, the length of the heating wire needs to be extended accordingly. In this case, the spacing between the bubble film and the heating wire at each position cannot be completely consistent, resulting in uneven heating of the bubble film and poor hot-melt performance.

[0077] Therefore, this application provides a hot melt station, with reference to Figure 1 and Figure 2 The hot-melt table includes a table body 10. A first unwinding unit 20 is provided on one side of the table body 10 for placing packaging materials. A traction unit 30 is installed on the table body 10 and is used to pull the packaging materials under the film roll. A second unwinding unit 40 is also installed on the table body 10, which is used to attach double-sided tape to the packaging materials while the traction unit 30 is pulling them. A cutting unit 60 is also provided on the hot-melt table. After the film roll is pulled, the cutting unit 60 cuts the packaging materials. A hot-melt unit 50 is also installed on the table body 10. After the packaging materials to be hot-melted are pulled under the film roll and cut, the hot-melt unit 50 hot-melts the packaging materials, thereby packaging the film roll.

[0078] Reference Figure 4 Specifically, the hot-melt unit 50 includes a first hot-melt structure 51 and a second hot-melt structure 52 arranged opposite to each other, with one end of the first hot-melt structure 51 and one end of the second hot-melt structure 52 rotatably connected. A driving structure 53 is mounted on the first hot-melt structure 51, which is used to drive the first hot-melt structure 51 and the second hot-melt structure 52 to move closer to each other.

[0079] 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 two drive rods 511 as described above. The two drive rods 511 are arranged facing each other, and a hot-melt rod 512 is arranged between the two drive rods 511. The two ends of the hot-melt rod 512 are respectively fixedly connected to the upper ends of the two drive rods 511.

[0080] In one embodiment of the present invention, reference is made to... Figure 6-8 The hot melt rod 512 includes a first rod body 5121, with a groove 51211 extending along the length of the first rod body 5121. A heating wire 5122 is mounted on the bottom surface of the groove 51211. The hot melt rod 512 also includes a high-temperature cloth 5123, which is mounted on the first rod body 5121 and covers the opening of the groove 51211. During the hot melt of the bubble wrap, the high-temperature cloth 5123 and the bubble wrap come into contact, 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, and when heated, the heat is evenly distributed across the entire unfolded surface, thus maintaining better heating uniformity and resulting in a better hot melt effect for the bubble wrap.

[0081] In one embodiment of the present invention, the two sides of the high-temperature cloth 5123 are pressed together by pressure plates and unfolded at the opening position of the groove 51211 of the first rod 5121. The pressure plates have a large surface area, which allows the high-temperature cloth 5123 to be fixed relatively stably and prevents the high-temperature cloth 5123 from being torn.

[0082] In one embodiment of the present invention, the high-temperature cloth 5123 may be one of glass fiber cloth, Teflon cloth, ceramic fiber cloth, carbon fiber cloth or silicone cloth.

[0083] Considering that the molten bubble wrap may adhere to the high-temperature cloth 5123, the molten bubble wrap 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 plastic will be continuously heated and carbonized, resulting in an uneven surface of the high-temperature cloth 5123.

[0084] Preferably, in one embodiment of the present invention, the high-temperature cloth 5123 is made of Teflon cloth. Teflon cloth has a very low surface energy, making it difficult to bond with other materials. Molten plastic typically cannot adhere to Teflon cloth, thus preventing adhesion.

[0085] In one embodiment of the present invention, reference is made to... Figure 8 The hot melt rod 512 also includes a silicone strip 5124. The silicone sleeve is installed in the groove 51211. By setting the silicone strip 5124, the heating wire 5122 is located entirely within the silicone strip 5124. Thus, when the heating wire 5122 heats, it first heats the silicone strip 5124. Then, the silicone strip 5124 radiates heat to the high-temperature cloth 5123, thereby achieving heating of the high-temperature cloth 5123. This makes the high-temperature cloth 5123 more evenly heated, resulting in a better hot melt effect of the bubble film.

[0086] 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. (Refer to...) Figure 8 The two ends of the high-temperature cloth 5123 are fixedly connected to the first rod 5121, and the middle part of the high-temperature cloth 5123 abuts against the silicone strip 5124 and is taut under the support of the silicone strip 5124. When the high-temperature cloth 5123 comes into contact with the bubble wrap, the high-temperature cloth 5123 can better adhere to the bubble wrap, making the heat-melting effect of the bubble wrap better.

[0087] Since 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 wrap are designated as clamping surfaces. Figure 4 and Figure 8When the two hot melt rods 512 are set facing each other and clamp the bubble wrap, the flatness of the clamping surface may be poor, that is, the clamping surface may be partially convex and partially concave under the support of the silicone strip 5124.

[0088] In one embodiment of the present invention, reference is made to... Figure 6 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 the bubble film is heat-melted, the flatness of the clamping surfaces of the two heat-melting rods 512 is adjusted. This is done by inserting a pin into the adjustment hole 51212, which pushes out the recessed area formed by the high-temperature cloth 5123, thereby giving the clamping surfaces a better flatness. This ensures that the various parts of the bubble film are heat-melted at approximately the same time, resulting in a better heat-melting effect.

[0089] In one embodiment of the present invention, a plurality of adjustment holes 51212 are provided, and the plurality of adjustment holes 51212 are spaced apart, so that the flatness adjustment of the clamping surface is more precise.

[0090] 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 opposite sides of the cuboid.

[0091] In one embodiment of the present invention, the distance between two adjacent adjustment holes 51212 is 10-15 mm. With this distance, the silicone strip 5124 can be adjusted more accurately, resulting in a higher flatness of the clamping surface between the two hot melt rods 512.

[0092] Specifically, in one embodiment of the present invention, the adjustment hole 51212 is a set screw hole, and a set screw is connected to the set screw hole by an internal thread. The set screw connected to the set screw hole by the thread is fixed in the adjusted position after rotation, so that the silicone strip 5124 can be adjusted to the ejection position more conveniently, thereby ensuring the flatness of the clamping surface between the two hot melt rods 512, and making the clamped bubble film heat more evenly.

[0093] In one embodiment of the present invention, reference is made to... Figure 9 and Figure 10The drive rod 511 includes a second rod body 5111, on 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 element 5113 is provided between the slide rod 5112 and the second rod body 5111. One end of the elastic element 5113 is fixedly connected to the slide rod 5112, and the other end of the elastic element 5113 is fixedly connected to the second rod body 5111. When the slide rod 5112 moves away from the second rod body 5111, under the action of the elastic element 5113, the slide rod 5112 tends to move closer to the second rod body 5111. The initial length of the drive rod 511 is less than the smallest diameter film roll to be packaged, and the maximum length of the drive rod 5111 after the slide rod 5112 moves away from the second rod body 5111 is greater than the largest diameter film roll. After the hot melt unit 50 is replaced with the aforementioned drive rod 511, when packaging film rolls of different sizes, under the action of the elastic element 5113, the slide rod 5112 tends to move towards the second rod 5111, thereby ensuring that the hot melt rod 512 remains tightly attached to the film roll during the packaging process. The hot melt rod 512 presses the bubble wrap tightly, allowing the bubble wrap to adhere tightly to film rolls of different sizes, resulting in excellent film roll packaging effect.

[0094] Specifically, refer to Figure 9 and Figure 10 A first through hole 51111 and a second through hole 51112 are provided on the second rod body 5111. The first through hole 51111 penetrates the side 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 slide rod 5112 is slidably connected in the second through hole 51112, and the slide rod 5112 and the second rod body 5111 are slidably connected. An elastic element 5113 is provided in the first through hole 51111.

[0095] In one embodiment of the present invention, the elastic element 5113 may be a tension spring, rubber band, rubber tube, or other elastic element 5113 that has a tendency to retract after being stretched.

[0096] Preferably, in one embodiment of the present invention, in order to facilitate the installation and replacement of the elastic element 5113, a tension spring is selected as the elastic element 5113.

[0097] Combination Figure 9 and Figure 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, it tends to move downward under the action of the tension spring, which in turn drives the hot melt rod 512 to press tightly against the outer surface of the film roll.

[0098] To facilitate the machining of the through hole, in one embodiment of the present invention, the second through hole 51112 is configured as a round hole, and correspondingly, the slide rod 5112 is configured as a round rod.

[0099] Furthermore, in one embodiment of the present invention, referring to Figure 10 The slide bar 5112 includes a first part 51121 and a second part 51122, which are arranged side by side. The slide bar 5112 also includes a connecting block 51123, which is fixedly connected to one end of both the first part 51121 and the second part 51122. Two second through holes 51112 are correspondingly provided, and the first part 51121 and the second part 51122 are respectively installed in the two second through holes 51112. Both the first part 51121 and the second part 51122 are round rods. By providing two second through holes 51112, the slide bar 5112 becomes more stable during sliding.

[0100] Furthermore, in one embodiment of the present invention, referring to Figure 10 The slide bar 5112 is also provided with a protrusion 51124, which is fixedly connected to the other end of the first part 51121 and the second part 51122 respectively. The protrusion 51124 is located above the second through hole 51112 and 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 towards the elastic member 5113. By setting a suitable protrusion 51124, the elastic member 5113 can always be in an extended state, that is, the protrusion 51124 is initially tightly attached to the second rod body 5111, so that the hot melt rod 512 is always tightly attached to the film roll during operation.

[0101] Specifically, in one embodiment of the present invention, referring to Figure 10 A linear bearing 5114 is installed inside 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 a slide rod 5112 is slidably connected to the inner wall of the linear bearing 5114. That is, the first part 51121 and the second part 51122 of the slide rod 5112 are each provided with a corresponding linear bearing 5114, thereby making the first part 51121 and the second part 51122 slide smoothly.

[0102] In one embodiment of the present invention, two linear bearings 5114 are respectively provided on the first part 51121 and the second part 51122, so that the sliding rod 5112 slides more smoothly.

[0103] 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 connected to the second through hole 51112.

[0104] When the bubble film needs to be heat-fused, the driving structure 53 drives the first heat-fusion structure 51 and the second heat-fusion structure 52 to move closer together, thereby causing the heat-fusion rod 512 to adhere tightly to the film roll. Figure 14 and Figure 15 The hot melt rod 512 moves upward along the side of the film roll until it reaches the top of the roll. At this point, the two ends of the bubble wrap melt under the heat of the hot melt rod 512 and fuse together into a single unit, thus completing the packaging of the film roll. Furthermore, after adjusting the flatness of the high-temperature cloth 5123 of the two opposing encapsulating silicone strips 5124 through the adjusting hole 51212, the two opposing hot melt rods 512 clamp the bubble wrap with an optimal plane, ensuring that the hot melting of the bubble wrap at various positions is basically consistent, thereby achieving the best hot melting effect.

[0105] In one embodiment of the present invention, the hot-melt unit 50 further includes a lifting structure 54, as shown in the figure. Figure 5 The lifting structure 54 is used to drive the first hot melt structure 51 and the second hot melt structure 52 to rise and fall.

[0106] Specifically, in one embodiment of the present invention, referring to Figure 17 and Figure 17 The lifting structure 54 includes a second bidirectional motor 541. A transmission gear 5412 is fixedly connected to the output shaft of the second bidirectional motor 541. The transmission gear 5412 is driven by a transmission chain 542. A transmission block 544 is fixedly connected to a link of the transmission chain 542. The gears 55 of the first thermoplastic structure 51 and the second thermoplastic structure 52 are rotatably connected to the transmission block 544. When the second bidirectional motor 541 drives the transmission gear 5412 to rotate, the transmission chain 542 rotates, and the transmission block 544 fixed on the transmission chain 542 moves up and down with the transmission chain 542, thereby driving the first thermoplastic structure 51 and the second thermoplastic structure 52 to move up and down accordingly.

[0107] Preferably, in one embodiment of the present invention, a slide rail 543 is also provided. The slide rail 543 is disposed beside the transmission block 544, and 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.

[0108] Preferably, in one embodiment of the present invention, the lifting structure 54 further includes a cable chain 546 and a cable chain 546 housing 545. The cable chain 546 housing 545 is installed beside the slide rail 543, and the cable chain 546 is placed inside the cable chain 546 housing 545. One end of the cable chain 546 is fixed inside the cable chain 546 housing 545, and the other end of the cable chain 546 is fixedly connected to the transmission block 544. Simultaneously, the cable chain 546 and the slide rail 543 limit the movement of the transmission block 544, ensuring stability during its vertical movement.

[0109] 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 raised and lowered stably.

[0110] Meanwhile, the second bidirectional motor 541 is located between the two drive rods 511, and the second bidirectional motor 541 has two output shafts. Both output shafts of the second bidirectional motor 541 are equipped with transmission gears 5412, so that when the second bidirectional motor 541 is running, the output shafts of the second bidirectional motor 541 can drive the lifting structures 54 on both sides of the first hot melt structure 51 to work.

[0111] Combination Figure 11 and Figure 14 The elastic element 5113 can only extend to a fixed length. When the size of the film roll to be packaged is large, the stroke of the drive rod 511 is insufficient.

[0112] Furthermore, in one embodiment of the present invention, combined with Figure 12 and Figure 14 The lifting structure 54 and the drive rod 511 work together to raise the first hot melt structure 51 and the second hot melt structure 52 to a suitable height. Then the drive rod 511 at the first hot melt structure 51 and the second hot melt structure 52 extends and makes the hot melt rod 512 stick tightly to the outer surface of the film roll, so that the bubble film on the outer surface of the film roll can stick tightly to the film roll, resulting in a better packaging effect.

[0113] In one embodiment of the present invention, since the space below the hot melt rod 512 is for placing the film roll, refer to... Figure 12 The rising of the first hot melt structure 51 and the second hot melt structure 52 will not interfere with the normal packaging of the film roll.

[0114] Reference Figure 1 and Figure 18 The first unwinding unit 20 includes a first support structure 21 and a second support structure 22. The first support structure 21 is used to place bubble wrap, and the second support structure 22 is used to place kraft paper.

[0115] Specifically, in one embodiment of the present invention, the first support structure 21 includes a first mounting frame 211, on which a first support frame 212 and a second support frame 213 are slidably connected. The first support frame 212 and the second support frame 213 are respectively disposed at both ends of the first support frame 212. A first driving member 214 is also mounted on the first mounting frame 211, which 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, which is used to limit the second support frame 213 on the first mounting frame 211. After the first support frame 212 is driven to move by the first driving member 214, the distance between the first support frame 212 and the second support frame 213 changes, thereby adapting to the loading of packaging materials of different widths.

[0116] Reference Figure 20 ,exist Figure 20 To facilitate the demonstration of the detailed structure of the first support structure 21, the distance 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 spaced first limiting holes 2111, and the second support frame 213 is fixedly connected with a first limiting block 2151. The limiting block can be fixed by inserting a limiting rod into the limiting hole, thereby fixing the relative positions of the second support frame 213 and the first mounting frame 211.

[0117] Reference Figure 1 and Figure 18 The second support structure 22 includes a second mounting bracket 221, on which a third support bracket 222 and a fourth support bracket are slidably connected. A second driving component is also mounted on the second mounting bracket 221, which is used to drive the third support bracket 222 and the fourth support bracket to move closer together or further apart.

[0118] Specifically, refer to Figure 18 The second driving component includes a first bidirectional motor 2241. The two output ends of the first bidirectional motor 2241 are connected to two first lead screws 2242. The two first lead screws 2242 are threadedly connected to the third support frame 222 and the fourth support frame, respectively. When the first lead screw 2242 rotates, the third support frame 222 and the fourth support frame move closer to each other or further away from each other, thereby realizing the clamping of the packaging material.

[0119] In one embodiment of the present invention, the packaging material may be bubble wrap or kraft paper.

[0120] In one embodiment of the present invention, the first support structure 21 is used to place bubble wrap, and the second support structure 22 is used to place kraft paper.

[0121] In actual use, the packaging material can be freely selected according to the film roll of the packaging. It can be packaged with bubble wrap alone or with kraft paper and bubble wrap.

[0122] In one embodiment of the present invention, when using kraft paper and bubble wrap for packaging, the width of the kraft paper is slightly larger than the width of the bubble wrap. It is only necessary to stick double-sided tape on both sides of the kraft paper. After the kraft paper is bonded with double-sided tape, the bubble wrap is fixed inside the kraft paper. After the two ends of the kraft paper are fixed, the film roll is packaged.

[0123] When using kraft paper and bubble wrap to package film rolls, refer to... Figure 3 As shown, the rolling structure 70 drives the film roll and kraft paper to rotate, causing the kraft paper to rotate around the film roll once. The two ends of the kraft paper will be pasted onto the film roll, thereby packaging the film roll.

[0124] The rolling structure 70 consists of two rollers spaced apart. This structure is quite common and will not be described in detail here.

[0125] 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 that load the kraft paper to drive the kraft paper to rotate, thereby replicating the traction structure to pull the kraft paper.

[0126] In one embodiment of the present invention, the first unwinding unit 20 further includes a third mounting frame 23 and a third driving member 24. The first mounting frame 211 is mounted on the second mounting frame 221, the second mounting frame 221 is slidably connected to the third mounting frame 23, and the third driving member 24 is used to drive the second mounting frame 221 to slide on the third mounting frame 23.

[0127] In practical use, it is necessary to ensure that the center lines of the kraft paper and bubble wrap are aligned with the center line of the film roll. In one embodiment of the present invention, the bubble wrap and kraft paper are first aligned, and then the entire bubble wrap and kraft paper roll is aligned with the film roll.

[0128] Specifically, refer to Figure 1 and Figure 18-20 First, the second driving component drives the third support frame 222 and the fourth support frame to move away from each other. After the kraft paper is placed between the third support frame 222 and the fourth support frame, the second driving component drives the third support frame 222 and the fourth support frame to move closer to each other to clamp the kraft paper.

[0129] After the kraft paper is installed, the first driving component 214 drives the first support frame 212 away from the second support frame 213. Then, the bubble wrap is placed between the first and second support frames 212 and 213. The first driving component 214 then drives the second support frame 213 closer to the second support frame 213, clamping the bubble wrap and fixing it between the two frames. The first driving component 214 then stops working, and the second support frame 213 is pushed to center the bubble wrap and kraft paper. After centering, a limiting rod is inserted into the first limiting hole 2111, fixing the positions of the first limiting block 2151 and the first mounting frame 211, thereby fixing the positions of the second support frame 213 and the first mounting frame 211. The first driving component 214 then drives the first support frame 212 to move closer to the second support frame 213 to clamp the bubble wrap.

[0130] After the bubble wrap and kraft paper are aligned, the third drive component 24 on the third mounting bracket 23 is activated. The third drive component 24 drives the second mounting bracket 221 to slide on the third mounting bracket 23, thereby causing the kraft paper and film roll to move relative to the film roll as a whole. When the kraft paper and film roll are aligned, both the surface kraft paper and bubble wrap are aligned with the film roll, and the third drive component 24 stops working.

[0131] In one embodiment of the present invention, the first driving member 214 is a rodless cylinder, which can be pushed when not in operation.

[0132] In one embodiment of the present invention, the third driving member 24 is an electric push rod.

[0133] In one embodiment of the present invention, the first unwinding unit 20 further includes a third support structure 25, as shown in the figure. Figure 2 The third support structure 25 and the first support structure 21 are arranged facing each other on both sides of the platform 10. The third support structure 25 is used to place bubble wrap.

[0134] In one embodiment of the present invention, the third support structure 25 and the first support structure 21 are used to place bubble wrap of different sizes. For example, when a 60cm bubble wrap is placed on the first support structure 21, a 90cm bubble wrap is placed on the third support structure 25. Therefore, when the film roll requires bubble wrap of different widths, the traction unit 30 can directly pull the bubble wrap of different widths without removing the bubble wrap from the first support structure 21, making the packaging of the film roll more convenient.

[0135] Specifically, refer to Figure 21The third support structure 25 includes a fourth mounting bracket 251, on which a fifth support bracket 252 and a sixth mounting bracket are slidably connected. A fourth driving member 254 is also mounted on the fourth mounting bracket 251, which drives the fifth support bracket 252 to slide on the fourth mounting bracket 251. A second limiting member 255 is also provided on the fourth mounting bracket 251, which limits the sixth support bracket 253 to the fourth mounting bracket 251.

[0136] The operating principle of the third support structure 25 is similar to that of the first support structure 21, and will not be elaborated here.

[0137] In one embodiment of the present invention, based on the first support structure 21 and the third support structure 25 respectively provided at both ends of the platform 10, the traction structure needs to pull the bubble film at both ends of the platform 10.

[0138] Specifically, such as Figure 22 As shown, the traction unit 30 is mounted on the platform 10. Combined with... Figure 23 and Figure 24 The traction unit 30 includes a sliding guide rail 32, which is mounted on the platform 10. The clamping member 33 is slidably connected to the sliding guide rail 32, and the fifth driving member 31 is used to drive the clamping member 33 to move along the sliding guide rail 32.

[0139] Reference Figure 24 Both ends of the clamping member 33 are provided with grippers 331, which are combined with Figure 1 When the clamping member 33 moves toward the first support structure 21, the jaws 331 on one side of the first support structure 21 can clamp bubble wrap or bubble wrap and kraft paper. When the clamping member 33 moves toward the third support structure 25, the jaws 331 on one side of the third support structure 25 can clamp bubble wrap.

[0140] The gripper 331 is a common type of gripper. The gripper 331 is controlled to open and close by a cylinder. When pulling bubble wrap or kraft paper, the bubble wrap or kraft paper is manually pulled to the gripper, and then the cylinder drives the gripper to close, thus clamping the packaging material. Then, the third drive component 24 drives the clamping component 33 to move, causing the packaging material to move under the film roll.

[0141] 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. Two clamping members 33 are correspondingly provided, and the two clamping members 33 respectively clamp both sides of the packaging material.

[0142] Furthermore, in one embodiment of the present invention, each clamping member 33 is provided with two grippers on the same side, and the two grippers respectively clamp the two sides of the packaging material, so that the packaging material can be pulled more stably.

[0143] Specifically, refer to Figure 25 and Figure 26 The second unwinding unit 40 includes a mounting base 41, which is mounted on the platform 10. An unwinding roller 42 and a take-up roller 44 are rotatably connected to the mounting base 41. The unwinding roller 42 holds the double-sided adhesive roll, and the take-up roller 44 winds up waste paper. The second unwinding unit 40 also includes a sixth driving member 45, which drives the take-up roller 44 to rotate, thereby causing the unwinding roller 42 to rotate. A pressure roller 43 is disposed between the take-up roller 44 and the unwinding roller 42. One end of the double-sided adhesive roll passes over the pressure roller 43 and connects to the take-up roller 44, with the adhesive tape adhering to the kraft paper. The waste paper portion is connected to the take-up roller 44. When the sixth driving member 45 drives the take-up roller 44 to rotate, the take-up roller 44 winds up the waste paper, and the waste paper drives the unwinding roller 42 to rotate. Under the action of the pressure roller 43, the adhesive tape of the double-sided adhesive roll adheres to the kraft paper.

[0144] In one embodiment of the present invention, an elastic element or a cylinder is usually provided at the pressing wheel 43, so that the pressing wheel 43 can press tightly onto the kraft paper.

[0145] Preferably, in one embodiment of the present invention, the second unwinding unit 40 further includes a magnetic sensing unit, which is used to determine whether the unwinding wheel 42 is rotating.

[0146] The magnetic sensing unit includes a magnetic switch 461 and a magnetic component 462. The magnetic sensing unit can be mounted on the unwinding reel 42, and the magnetic component 462 can be mounted on the mounting base 41. Alternatively, the magnetic sensing unit can be mounted on the mounting base 41, and the magnetic component 462 can also be mounted on the unwinding reel 42.

[0147] The magnetic component 462 intermittently triggers the magnetic switch 461, causing the surface unwinding wheel 42 to rotate and the double-sided tape to unwind normally. When the magnetic component 462 does not trigger the magnetic switch 461, the surface unwinding wheel 42 does not rotate, indicating that the double-sided tape has broken or run out. The magnetic switch 461 sends a signal back to the controller to notify the operator to check the double-sided tape.

[0148] In one embodiment of the present invention, the sixth driving element 45 may be configured as a motor.

[0149] Reference Figure 1 The cutting unit 60 is located between the hot-melt unit 50 and the second unwinding unit 40. After the traction structure pulls the film roll to a set length, the cutting unit 60 works and cuts the packaging material.

[0150] Reference Figure 27The cutting structure includes a mounting rod 61, which is mounted on the platform 10. A cutting cylinder 63 is mounted on the mounting rod 61, and a cutter 62 is slidably connected to the mounting rod 61. The cutting cylinder 63 drives the cutter 62 to move up and down. When the traction unit 30 pulls the packaging material to a sufficient length, the cutting cylinder 63 drives the cutter 62 to move downward, thereby cutting the packaging material.

[0151] It is understood that those skilled in the art can make equivalent substitutions or changes to the technical solution and inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A hot melt station for film roll packaging, characterized in that, include: Platform; The first unwinding unit is used to place packaging materials; A traction unit, mounted on the platform, is used to pull the packaging material below the film roll; The second unwinding unit is installed on the platform and is used to attach double-sided tape to the packaging material; A heat-melting unit, mounted on the platform, is used to heat-melt the packaging material; A cutting unit, disposed between the hot-melt unit and the second unwinding unit, is used to cut the packaging material; The hot melt unit includes: A first hot-melt structure and a second hot-melt structure are arranged opposite to each other, with one end of the first hot-melt structure and one end of the second hot-melt structure being rotatably connected. A driving structure is mounted 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 move closer to each other; The first hot-melt structure is the same as the first hot-melt structure, and the first hot-melt structure includes: Two drive rods arranged facing each other, the drive rods comprising: The second rod body has a first through hole and a second through hole. The first through hole passes through the side 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, and the slide rod is slidably connected to the second rod body. One end of the slide rod is used to install a hot melt rod. An elastic element is disposed within a first through hole; one end of the elastic element is connected to the second rod body, and the other end of the elastic element is connected to the other end of the sliding rod. The elastic element is used to drive the sliding rod closer to the second rod body. A hot melt rod, the two ends of which are fixedly connected to two drive rods respectively. 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 closes the opening of the groove. The high-temperature cloth is used to abut against the bubble wrap.

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

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

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 fills the groove. The heating wire is installed inside the silicone strip, which extends from inside the groove to outside 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 provided on the side wall of the first rod body. The adjustment hole is a through hole that connects the groove to the outside. Several adjustment holes are provided, and the adjustment holes are spaced apart.

6. A hot melt station for film roll packaging according to claim 1, characterized in that, The slide bar includes a first part, a second part, and a protrusion, with the first part and the second part arranged side by side; the slide bar includes a connecting block, which is fixedly connected to one end of the first part and the second part respectively, and the protrusion is fixedly connected to the other end of the first part and the second part respectively, and the protrusion is used to abut against the second rod body; A third through hole is provided on the side wall of the second rod, and the third through hole communicates with the second through hole.

7. A hot melt station for film roll packaging according to claim 2, characterized in that, The first unwinding unit further includes a third support structure, which is disposed on both sides of the platform facing the first support structure; The third support structure includes a fourth mounting bracket, a fifth support bracket, a sixth support bracket, a fourth driving member, and a second limiting member. The fifth support bracket and the sixth support bracket are slidably connected to the fourth mounting bracket. The fourth driving member is used to drive the fifth support bracket to slide, and the second limiting member is used to limit the sixth support bracket to the fourth mounting bracket.

8. A hot melt station for film roll packaging according to claim 1, characterized in that, 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. Two sliding guide rails are provided, and the two sliding guide rails are correspondingly arranged on both sides of the packaging material. Two clamping members are correspondingly provided, and the clamping members are used to clamp the packaging material.

9. A hot melt station for film roll packaging according to claim 1, characterized in that, The second unwinding unit includes a mounting base, an unwinding wheel, a clamping wheel, a take-up wheel, and a sixth driving member. The unwinding wheel, the clamping wheel, and the take-up wheel are all rotatably connected to the mounting base. The double-sided adhesive roll is mounted on the unwinding wheel, and one end of the double-sided adhesive roll passes around the clamping wheel and is fixed to the take-up wheel. The sixth driving member is used to drive the take-up wheel to rotate. The second unwinding unit also includes a magnetic induction structure, which is used to determine whether the unwinding wheel is rotating.

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