Packaging device for the end of a package roll

Abstract

The application relates to the technical field of roll packaging, and particularly discloses a packaging device for packaging roll ends. The packaging device comprises a first mounting base, two shrinkage discs are mounted on the two sides of the first mounting base, and the shrinkage discs are used for bending petals. A tape winding unit is mounted on each of the two shrinkage discs, the tape winding unit comprises a first mounting plate, and the first mounting plate is mounted on the shrinkage disc. A mounting disc for placing a tape and a fastening structure are mounted on the first mounting plate, the fastening structure comprises a first air cylinder and a fastening roller, the first air cylinder is mounted on the first mounting plate, and the fastening roller is rotationally connected to the first mounting plate. A pressing structure is mounted on the first mounting plate, and the pressing structure is used for pressing the tape on the roll. The tape sequentially passes through the fastening roller and the pressing structure, the output end of the first air cylinder is elongated and abuts against the fastening roller after the tape is wound, and the fastening roller cannot rotate. The tape between the pressing structure and the fastening roller is tightly stretched, so that the cutting structure can smoothly cut the tape.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of roll packaging, in particular to a packaging device for packaging the end of a roll. BACKGROUND

[0002] Part of the roll-shaped product such as a film roll needs to be wrapped by a flower disc to wrap the end of the roll after production to avoid damage to the film roll during transportation. As disclosed in the application file with the publication number CN 216805951 U, a clamping structure and a packaging line are provided to clamp the film roll by setting the clamping structure and the wrapping device, and the wrapping device is used to bond the flower disc to the end of the film roll. However, as can be known from the content of the specification and drawings of the application, when the cutting tape is cut off, that is, when the driver just drives the cutting knife to contact the tape, although the supporting point pressure roller presses the tape, the tape may rotate during the cutting process of the cutting knife, so that the tape between the supporting point pressure roller and the passing roller is loose. If the above-mentioned situation occurs during cutting, the cutting of the tape will not be able to proceed normally.

[0003] Therefore, the prior art still needs to be improved and developed. SUMMARY

[0004] The present application discloses a packaging device for packaging the end of a roll to improve the problem of loose tape during cutting of the tape by the device in the process of roll packaging.

[0005] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0006] The packaging device for packaging the end of a roll comprises:

[0007] a first mounting seat,

[0008] two shrink discs oppositely mounted on both sides of the first mounting seat, the shrink discs being used to bend the petals of the flower disc;

[0009] two tape winding units respectively mounted on the two shrink discs, the tape winding units comprising:

[0010] a first mounting plate;

[0011] a first mounting disc mounted on the first mounting plate, the first mounting disc being used to mount a tape roll;

[0012] a fastening structure comprising a first air cylinder and a fastening roller, the first air cylinder being mounted on the first mounting plate, the fastening roller being rotatably connected to the first mounting plate, the fastening roller abutting against the adhesive surface of the tape, the first air cylinder being used to extend and abut against the fastening roller;

[0013] A pressing structure is mounted on the first mounting plate, and is used to press the adhesive tape on the roll;

[0014] A cutting structure is mounted on the first mounting plate, and is used to cut the adhesive tape;

[0015] The adhesive tape passes through the fastening roller and the pressing structure in sequence, one end of the adhesive tape is arranged between the pressing structure and the roll, and when the adhesive tape is cut, the output end of the first cylinder is in abutment with the fastening roller, so that the fastening roller is locked.

[0016] Preferably, the pressing structure comprises a first pressing roller and a second pressing roller, the first pressing roller and the second pressing roller are rotatably connected to the first mounting plate at intervals, the second pressing roller is arranged directly below the first pressing roller, and the first pressing roller and the second pressing roller are used to cooperate to press the adhesive tape on the roll.

[0017] Preferably, the adhesive tape winding unit further comprises a second mounting plate, the second mounting plate is rotatably connected to the first mounting plate, a second cylinder is mounted on the second mounting plate, and the second cylinder is used to drive the first mounting plate to rotate relative to the second mounting plate;

[0018] When the adhesive tape is cut, the first cylinder drives the first mounting plate to rotate, the first pressing roller is away from the roll, and the second pressing roller is in abutment with the roll.

[0019] Preferably, the adhesive tape winding unit further comprises an adhesive tape retainer, the adhesive tape retainer is arranged between the fastening roller and the pressing structure, and the adhesive tape retainer is used to prevent the adhesive tape from deviating;

[0020] The adhesive tape retainer comprises a main body and two bent portions, the main body is a horizontal plate, the bent portions are "L"-shaped plates, the two bent portions are fixedly connected to two sides of the main body respectively, the two bent portions and the main body form a "convex" shaped through slot for the adhesive tape to pass through, the opening of the through slot is arranged downward, and the back surface of the adhesive tape is in abutment with the bent portions.

[0021] Preferably, the adhesive tape winding unit further comprises a direction changing roller, the direction changing roller is rotatably connected to the first mounting plate, the direction changing roller is arranged between the adhesive tape retainer and the fastening roller, and the direction changing roller and the adhesive tape retainer are arranged on the same horizontal plane.

[0022] Preferably, the adhesive tape winding unit further comprises a first pressing plate and a torsional spring, the first pressing plate is rotatably connected to the first mounting plate, and the torsional spring is used to drive the first pressing plate to press the adhesive tape on the first pressing roller;

[0023] The tape winding unit further comprises a second pressing plate and a third cylinder, the second pressing plate is installed on the first mounting plate, and the second pressing plate is used for flattening petals; the third cylinder is installed on the first mounting plate, and the third cylinder is used for driving the second pressing plate to rotate.

[0024] Preferably, the shrink disc comprises:

[0025] A second mounting seat;

[0026] A driving structure and a rotating disc, the rotating disc is fixedly connected to the output end of the driving structure;

[0027] A second mounting disc, the second mounting disc is fixedly connected with the second mounting seat, the rotating disc is arranged between the second mounting disc and the second mounting seat, a plurality of long holes are arranged on the second mounting disc, and the plurality of long holes are distributed at equal angles along the radial direction of the second mounting disc;

[0028] A plurality of first clamping jaws, the first clamping jaws are slidingly connected to the inner wall of the long hole;

[0029] A plurality of second clamping jaws, the first clamping jaws are slidingly connected to the inner wall of the long hole, and the first clamping jaws and the second clamping jaws are arranged at intervals;

[0030] A traction structure, comprising a plurality of first traction rods, a plurality of second traction rods and a plurality of connecting rods corresponding in number to the second traction rods, one end of the first traction rod is rotationally connected to the rotating disc, and the other end of the first traction rod is rotationally connected to the first clamping jaw;

[0031] One end of the connecting rod is fixedly connected to the rotating disc, one end of the second traction rod is rotationally connected to the other end of the connecting rod, and the other end of the second traction rod is rotationally connected to the second clamping jaw, the first traction rod and the second traction rod are located in different planes, and the connecting rod is used for avoiding interference between the first traction rod and the second traction rod during movement.

[0032] Preferably, the connecting rod is an "L"-shaped connecting rod, the connecting rod comprises a first part and a second part, the first part of the connecting rod is perpendicular to the rotating disc, and the second part of the connecting rod is rotationally connected to one end of the second traction rod.

[0033] Preferably, the first traction rod and the second traction rod are the same in structure, the first clamping jaw and the second clamping jaw are the same in structure, and the first clamping jaw and the second clamping jaw are both provided with a circular arc surface, and the circular arc surface faces the side of the center of the second mounting disc.

[0034] Preferably, the first mounting seat is provided with a sliding rail, and the two shrink discs are slidingly connected to the sliding rail;

[0035] The first mounting seat is further provided with a lifting structure arranged between the two shrink discs, and the lifting structure is used for lifting the roll.

[0036] Compared with the prior art, the present application has the following beneficial effects:

[0037] The packaging device for packaging the end part of a roll comprises a first mounting seat, two shrink discs arranged oppositely on the first mounting seat, two adhesive tape winding units respectively arranged on the two shrink discs, a first mounting plate, a first mounting disc arranged on the first mounting plate and used for mounting the adhesive tape, a fastening structure arranged below the first mounting disc and comprising a first air cylinder and a fastening roller rotatably connected to the first mounting plate and a pressing structure comprising a first pressing roller and a second pressing roller rotatably connected to the first mounting plate and arranged apart from each other, and a cutting structure arranged on the first mounting plate. The first pressing roller and the second pressing roller are used for pressing the adhesive tape on the film roll. The adhesive tape on the first mounting disc passes through the fastening roller, the first pressing roller and the second pressing roller in sequence, and one end of the adhesive tape is arranged on one side of the second pressing roller. When the adhesive tape is cut, the film roll and the adhesive tape winding unit are relatively stationary, the first air cylinder is elongated, and the output end of the first air cylinder abuts against the fastening roller so that the fastening roller is stationary. Because the fastening roller abuts against the adhesive tape, the adhesive tape between the fastening roller and the second pressing roller is fixed. The cutting structure cannot move towards the second pressing roller when the adhesive tape is cut, so that the cutting structure can stably cut the adhesive tape. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 The structure schematic view of the packaging device provided by an embodiment of the present application is shown in the figure.

[0039] Figure 2 The structure schematic view of the shrink disc and the adhesive tape winding unit provided by an embodiment of the present application is shown in the figure.

[0040] Figure 3 The first structure schematic view of the adhesive tape winding unit provided by an embodiment of the present application is shown in the figure.

[0041] Figure 4 The second structure schematic view of the adhesive tape winding unit provided by an embodiment of the present application is shown in the figure.

[0042] Figure 5 The structure schematic view of the adhesive tape winding unit when winding the adhesive tape provided by an embodiment of the present application is shown in the figure.

[0043] Figure 6 The structure schematic view of the adhesive tape winding unit when cutting the adhesive tape provided by an embodiment of the present application is shown in the figure.

[0044] Figure 7 A structure diagram of the cut-off tape when the first cylinder and the fastening roller abut to each other according to an embodiment of the present application;

[0045] Figure 8 A side view of the tape holder according to an embodiment of the present application;

[0046] Figure 9 A structure diagram of the tape and the second pressing plate according to an embodiment of the present application;

[0047] Figure 10 A structure diagram of the shrink disc according to an embodiment of the present application;

[0048] Figure 11 A front view of the shrink disc according to an embodiment of the present application;

[0049] Figure 12 A structure diagram of the first form of the claw according to an embodiment of the present application;

[0050] Figure 13 A structure diagram of the second form of the claw according to an embodiment of the present application;

[0051] Figure 14 A structure diagram of the third form of the claw according to an embodiment of the present application;

[0052] Figure 15 A sectional view of the mounting disc and the traction structure according to an embodiment of the present application;

[0053] Figure 16 An exploded view of the mounting disc and the traction structure according to an embodiment of the present application;

[0054] Figure 17 A structure diagram of the chuck according to an embodiment of the present application.

[0055] Main element symbol explanation: 10-first mounting seat, 11-lifting structure, 20-adhesive tape winding unit, 21-first mounting plate, 211-first mounting disc, 212-notch, 22-second mounting plate, 221-second air cylinder, 23-fastening structure, 231-first air cylinder, 232-fastening roller, 24-pressing structure, 241-first pressing roller, 242-second pressing roller, 25-cutting structure, 251-fourth air cylinder, 252-cutting knife, 26-adhesive tape holder, 261-main body, 262-bent part, 263-through slot, 27-direction changing roller, 281-first pressing plate, 282-torsion spring, 291-second pressing plate, 292-third air cylinder, 30-shrinking disc, 31-second mounting seat, 32-driving structure, 321-motor, 322-reducer, 33-rotating disc, 34-second mounting disc, 341-long hole, 35a-first clamping jaw, 35b-second clamping jaw, 351-circular arc surface, 36-pulling structure, 361-first pulling rod, 362-second pulling rod, 363-connecting rod, 3631-first part, 3632-second part, 37-air inflation chuck, 38-flower disc, 381-main body, 382-petal, A-adhesive tape, A1-sticking surface, A2-back surface, A3-adhesive tape head, M-film roll. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present application.

[0057] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0058] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms may also be used to indicate other meanings, for example, the term "upper" may also be used to indicate a certain dependent relationship or connection relationship in some cases. Those skilled in the art can understand the specific meaning of these terms in the present application according to the specific situation.

[0059] In addition, the terms "mounting", "arrangement", "provided with", "connected", "linked" should be interpreted broadly. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or internal communication between two devices, elements or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0060] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "a plurality of" is two or more.

[0061] The technical solutions of the present application will be further described below in conjunction with the embodiments and the drawings.

[0062] Embodiments

[0063] When the partial film roll is packaged, the end part of the film roll needs to be wrapped by a flower disc. The structure of the flower disc is shown in Figure 17 The flower disc includes a main body and a petal. When the film roll is packaged, the main body is attached to the end part of the film roll, and the petal is bent and attached to the side wall of the film roll. Then, by winding adhesive tape on the side of the film roll, the petal is fixed on the side wall of the film roll by the adhesive tape, so that the main body part of the flower disc can be combined with the film roll stably, avoiding damage to the film roll during transportation.

[0064] The roll includes various types. In order to facilitate the description, the film roll is used instead of the roll.

[0065] Therefore, the present application provides a packaging device for packaging the end part of the roll. Referring to Figure 1 , the packaging device includes a first mounting seat 10, two shrink discs 30 are mounted on the first mounting seat 10, and the two shrink discs 30 are mounted on the two sides of the first mounting seat 10. The shrink disc 30 is used to bend the petal 382 of the flower disc 38. In combination with Figure 1 and Figure 2 Two adhesive tape winding units 20 are respectively mounted on the two shrink discs 30. Referring to Figure 3The tape winding unit 20 comprises a first mounting plate 21 for mounting on the shrink disc 30. A first mounting disc 211 for mounting a tape roll is mounted on the first mounting plate 21. A fastening structure 23 comprising a first air cylinder 231 mounted on the first mounting plate 21 and a fastening roller 232 rotatably connected to the first mounting plate 21 is also mounted on the first mounting plate 21. The first air cylinder 231 is used to extend so that the output end of the first air cylinder 231 abuts against the fastening roller 232, and the adhesive surface of the tape is in contact with the fastening roller 232. A pressing structure 24 for pressing the tape against the roll (such as a film roll) is also mounted on the first mounting plate 21. A cutting structure 25 for cutting the tape is also mounted on the first mounting plate 21. When the tape is wound on the film roll, the tape passes through the fastening roller 232 and the pressing structure 24 in turn. The end of the tape used for adhesion to the film roll is arranged on one side of the pressing structure 24. After the pressing structure 24 presses the tape against the film roll, the winding begins. After the winding is completed, the output end of the first air cylinder 231 is extended, so that the output end of the first air cylinder 231 abuts against the fastening roller 232, and the fastening roller 232 cannot rotate. Since the adhesive surface of the tape is in contact with the fastening roller 232, when the fastening roller 232 cannot rotate, the friction of the adhesive surface of the tape will prevent the tape from being extended, so that the cutting structure 25 can smoothly cut the tape.

[0066] In an embodiment of the present application, referring to Figure 5 The pressing structure 24 comprises a first pressing roller 241 and a second pressing roller 242. The first pressing roller 241 and the second pressing roller 242 are rotatably connected to the first mounting plate 21 at intervals, and the second pressing roller 242 is arranged directly below the first pressing roller 241. The first pressing roller 241 and the second pressing roller 242 cooperate to press the tape against the film roll.

[0067] Specifically, referring to Figure 5 The film roll is usually arranged beside the tape winding unit 20. After the film roll is placed, the first pressing roller 241 and the second pressing roller 242 abut against the film roll, and the tape between the two pressing rollers and the film roll is pressed to adhere to the film roll. After the tape winding unit 20 and the film roll rotate relative to each other, the tape on the first mounting disc 211 is wound on the film roll. The first pressing roller 241 and the second pressing roller 242 are arranged at intervals and tightly abut against the film roll, so that the film roll and the tape winding unit 20 remain stable during relative rotation, thereby ensuring that the tape can be stably wound.

[0068] Further, in an embodiment of the present application, referring to Figure 4The tape winding unit 20 further comprises a second mounting plate 22, the second mounting plate 22 is rotationally connected with the first mounting plate 21, and a second cylinder 221 is mounted on the second mounting plate 22. The second cylinder 221 is used to drive the first mounting plate 21 to rotate relative to the second mounting plate 22.

[0069] In combination Figure 5 and Figure 6 , the winding process of the tape winding unit 20 is further described below. The tape winding unit 20 and the film roll can have two relative rotation conditions. When the film roll has a large mass, the tape winding unit 20 can be driven to rotate relative to the film roll. When the film roll has a small mass, the film roll or the tape winding unit 20 can be driven alone.

[0070] When winding the tape, as shown in Figure 5 , one end of the tape is first stretched to release the tape roll, and the tape passes through the fastening roller 232, the first pressing roller 241 and the second pressing roller 242 in sequence, and the one end of the tape is finally located on one side of the second pressing roller 242. After the tape is arranged, the film roll is placed on one side of the tape winding unit 20. The placed film roll is shown in Figure 5 , which is in contact with the first pressing roller 241 and the second pressing roller 242, and the tape located at the first pressing roller 241 and the second pressing roller 242 will be attached to the film roll. After the end of the tape and the film roll are bonded, the tape winding unit 20 and the film roll rotate relative to each other, and at this time the tape will be wound on the film roll. When the tape is wound on the film roll for a sufficient number of turns, the tape winding unit 20 or the film roll stops moving.

[0071] Then the first cylinder 231 and the second cylinder 221 move, referring to Figure 6 , the first cylinder 231 is elongated so that the output end of the first cylinder 231 is in contact with the fastening roller 232, and the second cylinder 221 is retracted so that the first mounting plate 21 rotates counterclockwise. At this time, the fastening roller 232 cannot rotate after being contacted by the output end of the first cylinder 231. Since the rotation shaft of the first mounting plate 21 is located below the second pressing roller 242, after the first mounting plate 21 rotates counterclockwise, the second pressing roller 242 will move upward a certain distance during counterclockwise rotation, so that the second pressing roller 242 tightly contacts the film roll.

[0072] In combination Figure 7, the stress of the adhesive tape between the second compression roller 242 and the fastening roller 232 is analyzed. It is found that, because the output end of the first cylinder 231 abuts against the fastening roller 232, the adhesive surface of the adhesive tape contacts the fastening roller 232, and the adhesive tape is bent into an acute angle at the fastening roller 232. When the adhesive tape is pulled at the right side of the fastening roller 232, the adhesive tape needs to overcome the greater friction between the adhesive surface and the fastening roller 232. The adhesive tape at the second compression roller 242 is tightly pressed on the film roll by the second compression roller 242, so that the adhesive tape between the second compression roller 242 and the fastening roller 232 is tight, the adhesive tape roll on the first mounting disc 211 does not rotate to make the adhesive tape loose, and thus the cutting device can cut the adhesive tape smoothly.

[0073] Preferably, in an embodiment of the present application, in order to avoid damage to the film roll during packaging, the first compression roller 241 and the second compression roller 242 are both rubber-coated rollers.

[0074] Preferably, in an embodiment of the present application, the fastening roller 232 is an aluminum pattern roller. The contact area between the pattern roller and the adhesive surface of the adhesive tape is small, and thus the adhesive tape can be well prevented from being adhered to the fastening roller 232.

[0075] Of course, the output end of the first cylinder 231 can be rubber-coated, so that the output end of the first cylinder 231 can be stable when abutting against the fastening roller 232.

[0076] Preferably, in an embodiment of the present application, the first mounting disc 211 is usually a gas inflation disc. After being inflated, the gas inflation disc can clamp the inner wall of the adhesive tape, so that the adhesive tape roll remains stable during the movement of the adhesive tape winding unit 20.

[0077] When the film roll abuts against the first compression roller 241 and the second compression roller 242, because the cross section of the film roll is circular, the part of the film roll extending to the right between the first compression roller 241 and the second compression roller 242. Preferably, in an embodiment of the present application, as shown in Figure 3 , the first mounting plate 21 is further provided with a notch 212, the notch 212 is arranged between the first compression roller 241 and the second compression roller 242, and the notch 212 is generally arc-shaped, so as to avoid interference between the first mounting plate 21 and the film roll.

[0078] Further, in an embodiment of the present application, in combination with Figure 3 and Figure 8 , the adhesive tape winding unit 20 further comprises an adhesive tape retainer 26, the adhesive tape retainer 26 is arranged between the fastening roller 232 and the compression structure 24, and the adhesive tape retainer 26 is used to prevent the adhesive tape from deviating.

[0079] Specifically, the adhesive tape retainer 26 is arranged between the fastening roller 232 and the first compression roller 241. Referring to Figure 8The tape retainer 26 comprises a main body 381261 and two bent portions 262, wherein the main body 381261 of the retainer is a horizontal plate, and the two bent portions 262 are "L"-shaped plates. The two bent portions 262 are fixedly connected to the two sides of the main body 381261 respectively, and the two bent portions 262 and the main body 381261 form a "convex" shaped through slot 263 for the tape to pass through.

[0080] The bent portion 262 comprises a horizontal portion and a vertical portion, the vertical portion is used for fixedly connecting with the main body 381261, and the horizontal portion is used for limiting the tape.

[0081] The application file with the publication number CN 211895296 U discloses a technical solution of limiting the tape by a limiting rod, but referring to the drawings in the specification, it can be known that the adhesive surface of the tape is in contact with the limiting rod, and there is a large resistance in the running process of the tape. In the present application, as shown, the tape retainer 26 is arranged above the tape, and the opening of the through slot 263 is arranged downward, so that the back surface of the tape abuts against the horizontal portion of the bent portion 262, so that the tape retainer 26 prevents the tape from deviating, and the tape retainer 26 and the adhesive surface of the tape are not adhered, so as to avoid the influence of the tape retainer 26 on the normal feeding of the tape. Figure 8

[0082] Further, in an embodiment of the present application, in combination with Figure 3 and Figure 8 The tape winding unit 20 further comprises a direction changing roller 27, which is rotatably connected to the first mounting plate 21, and the direction changing roller 27 is arranged between the tape retainer 26 and the fastening roller 232, and the direction changing roller 27 and the tape retainer 26 are arranged on the same horizontal plane.

[0083] Referring to Figure 3 , in the case of arranging the fastening roller 232, the tape extending from the fastening roller 232 to the tape retainer 26 is located below the tape retainer 26. When the tape does not pass through the direction changing roller 27 and extends directly to the tape retainer 26, the included angle between the tape close to one end of the compression roller and the tape retainer 26 is large, and the resistance of the tape is large. After the tape passes through the direction changing roller 27, since the direction changing roller 27 is a circular arc surface 351 and the direction changing roller 27 can rotate, the resistance of the tape in the movement process is greatly reduced.

[0084] Further, in an embodiment of the present application, in combination with Figure 3 and Figure 5 ​, the tape winding unit 20 further comprises a first pressing plate 281 and a torsion spring 282, wherein the first pressing plate 281 is rotatably connected to the first mounting plate 21, and the torsion spring 282 is installed on the first mounting plate 21 and is used to drive the first mounting plate 21 to press against the first pressing roller 241. As shown in the figure, when the first pressing plate 281 presses the tape, the tape on the first pressing roller 241 and the second pressing roller 242 will naturally sag, thereby making it easier for the tape to stick to the film roll.

[0085] When the end of the packaged film roll needs to be fastened by the flower disc 38, refer to Figure 17 , the petal 382 part of the flower disc 38 needs to be pressed against the film roll, thereby facilitating the winding of the tape. Further, in an embodiment of the present application, the tape winding unit 20 further comprises a second pressing plate 291. Refer to Figure 3 and Figure 5 , the second pressing plate 291 is installed on the first mounting plate 21, and the second pressing plate 291 is used to flatten the petal 382. When the tape winding unit 20 rotates clockwise relative to the film roll or the film roll rotates counterclockwise relative to the tape winding unit 20, the second pressing plate 291 will flatten the petal 382, thereby enabling the tape to be smoothly wound on the petal 382, thereby enabling the flower disc 38 to be fixed.

[0086] Further, in an embodiment of the present application, refer to Figure 3 or Figure 5 , the tape winding unit 20 is further provided with a third cylinder 292. The third cylinder 292 is installed on the first mounting plate 21, the second pressing plate 291 is rotatably connected to the first mounting plate 21, and the third cylinder 292 is used to drive the second pressing plate 291 to rotate relative to the first mounting plate 21.

[0087] During actual packaging, part of the film roll packaging needs to use the flower disc 38 to package the end thereof, and part of the film roll packaging does not use the flower disc 38 to package the end thereof. In an embodiment of the present application, when the end of the film roll is packaged using the petal 382, the third cylinder 292 is elongated, the second pressing plate 291 abuts against the petal 382 of the flower disc 38 under the drive of the third cylinder 292, and the petal 382 is tightly attached to the film roll during the winding of the tape under the action of the second pressing plate 291, thereby enabling the tape to smoothly adhere the petal 382 to the film roll.

[0088] The film roll is relatively heavy, and the tape winding device is usually driven to rotate. Refer to Figure 9When the film roll is packaged with a flat plate, the tape head may not be completely attached to the film roll. If the second baffle is still in close contact with the film roll, the raised tape head may be bonded to the second baffle during the rotation of the tape winding device in the direction of the arrow, resulting in poor tape winding effect. Therefore, in an embodiment of the present application, when the film roll is packaged with a flat plate, the third cylinder 292 is retracted, thereby driving the second pressing plate 291 away from the film roll.

[0089] Specifically, in an embodiment of the present application, the cutting structure 25 includes a fourth cylinder 251 and a cutting knife 252, referring to Figure 3 or Figure 5 or Figure 6 The fourth cylinder 251 is installed on the first mounting plate 21, and the cutting knife 252 is installed on the output end of the fourth cylinder 251. When the output end of the fourth cylinder 251 is elongated, the cutting knife 252 will protrude from between the first pressing roller 241 and the second pressing roller 242 to cut the tape.

[0090] The cutting edge on the cutting knife 252 can be provided with a spike, thereby better cutting the tape.

[0091] In an embodiment of the present application, the petals 382 on the flower disc 38 are bent by retracting the disc 30, so that the petals 382 are close to the side wall of the film roll. As Figure 10 shown, the retraction disc 30 includes a second mounting seat 31, the second mounting seat 31 is provided with a driving structure 32 and a rotating disc 33, the rotating disc 33 is fixedly connected to the output end of the driving structure 32, and the driving structure 32 is used to drive the rotating disc 33 to rotate. The second mounting seat 31 is also fixedly connected with a second mounting disc 34, and the rotating disc 33 is arranged between the second mounting disc 34 and the second mounting seat 31. The second mounting disc 34 is provided with a plurality of long holes 341, and the plurality of long holes 341 are distributed at equal angles along the radial direction of the second mounting disc 34. A pawl is slidably connected to the inner wall of each long hole 341, wherein a first pawl 35a is slidably connected to the inner wall of part of the long holes 341, and a second pawl 35b is slidably connected to the inner wall of part of the long holes 341, and the first pawl 35a and the second pawl 35b are distributed at intervals. Referring to Figure 15 and Figure 16The shrink disc 30 further comprises a traction structure 36, which comprises a plurality of first traction rods 361, a plurality of second traction rods 362 and a plurality of connecting rods 363, wherein the number of the connecting rods 363 corresponds to the number of the second traction rods 362. One end of the first traction rod 361 is rotationally connected with the rotating disc 33, and the other end of the first traction rod 361 is rotationally connected with the first clamping jaw 35a. The connecting rod 363 is fixedly connected with the rotating disc 33, one end of the second traction rod 362 is rotationally connected with the connecting rod 363, and the other end of the second traction rod 362 is rotationally connected with the second clamping jaw 35b. After the second traction rod 362 is connected with the connecting rod 363, the first traction rod 361 and the second traction rod 362 are located in different planes, the second traction rod 362 is located between the first traction rod 361 and the rotating disc 33, or the second traction rod 362 is located between the first traction rod 361 and the second mounting disc 34. The connecting rod 363 causes the second traction rod 362 to be misaligned with the first traction rod 361 during rotation, thereby avoiding interference between the second traction rod 362 and the first traction rod 361 during rotation, and further ensuring that the distance by which the first clamping jaw 35a and the second clamping jaw 35b shrink inward is much greater than the distance in the prior art. The petals 382 of the flower disc 38 can be tightly pressed on the film roll by the clamping jaws, so that the film roll can be normally packaged.

[0092] Further, in an embodiment of the present application, the connecting point of the connecting rod 363 with the rotating disc 33 is set as a first connecting point, and the connecting point of the first traction rod 361 with the rotating disc 33 is set as a second connecting point. The distance from the first connecting point to the axis of the rotating disc 33 is greater than or less than the distance from the second connecting point to the axis of the rotating disc 33.

[0093] As described above, when the distance from the first connecting point to the axis of the rotating disc 33 is greater than the distance from the second connecting point to the axis of the rotating disc 33, the second traction rod 362 is located between the first traction rod 361 and the rotating disc 33. At this time, the first traction rod 361 and the second traction rod 362 are arranged in different planes, and the first traction rod 361 and the second traction rod 362 do not interfere with each other during rotation, thereby ensuring that the first clamping jaw 35a and the second clamping jaw 35b can smoothly bend the petals 382.

[0094] Preferably, in an embodiment of the present application, with reference to Figure 15 and Figure 16When the distance from the first connecting point to the axis of the rotating disc 33 is less than the distance from the second connecting point to the axis of the rotating disc 33, the second traction rod 362 is located between the first traction rod 361 and the second mounting disc 34. In this embodiment, the connecting rod 363 is used to extend the length of the second traction rod 362, so that the positions of the first connecting point and the second connecting point are staggered, and the first traction rod 361 and the second traction rod 362 are located in different planes, and the first traction rod 361 and the second traction rod 362 do not interfere with each other during rotation, thereby ensuring that the first jaw 35a and the second jaw 35b can smoothly bend the petal 382.

[0095] Further, in an embodiment of the present application, the connecting rod 363 is perpendicular to the rotating disc 33, and the perpendicular connecting rod 363 has a simple structure, and the rotating connection between the connecting rod 363 and the second traction rod 362 is stable. After being raised by the connecting rod 363, the distance between the second traction rod 362 and the rotating disc 33 is greater than the distance between the first traction rod 361 and the rotating disc 33, and the length of the second traction rod 362 is greater than the length of the first traction rod 361, thereby avoiding interference between the first traction rod 361 and the second traction rod 362 during movement.

[0096] In an embodiment of the present application, the connecting rod 363 is an "L"-shaped connecting rod 363, which includes a first portion 3631 and a second portion 3632, wherein the first portion 3631 is perpendicular to the rotating disc 33, one end of the second portion 3632 is rotatably connected to one end of the second traction structure 36, and the other end of the second portion 3632 is fixedly connected to the first portion 3631. In this embodiment, the second traction rod 362 extends in length through the second portion 3632, so that the second connecting point is closer to the axis of the rotating disc 33. And the second portion 3632 and the second traction rod 362 are arranged on the same plane, so that the installation of the second traction rod 362 and the second portion 3632 is more convenient.

[0097] Preferably, in an embodiment of the present application, the second portion 3632 extends from the first portion 3631, and the connecting point between the second portion 3632 and the second traction rod 362 is the same distance from the axis of the rotating disc 33 as the second connecting point. The first traction rod 361 and the second traction rod 362 have the same structure, and the first traction rod 361 and the second traction rod 362 can be replaced with each other, so that the overall structure of the device is simpler.

[0098] Specifically, in an embodiment of the present application, the jaws are divided into a first jaw 35a and a second jaw 35b according to different driving rods for driving the jaws, and the first jaw 35a and the second jaw 35b have substantially the same structure.

[0099] In an embodiment of the present application, with reference to Figure 12, the first clamp and the second claw 35b are provided with arc surfaces 351, and the arc surfaces 351 are all towards the center of the second mounting disc 34. When the first clamp and the second claw 35b move towards the center of the second mounting disc 34, at this time, the arc surfaces 351 and the petals 382 are in contact, and the petals 382 are tightly pressed on the side wall of the film roll.

[0100] In an embodiment of the present application, in order to make the pressing effect of the petals 382 better, the first claw 35a and the second claw 35b have a certain width, so that the whole of a single petal 382 is bent at the same time and tightly pressed on the film roll.

[0101] It should be noted that when the second claw 35b and the first clamp move towards the center of the second mounting disc 34 to the limit position, the side surfaces of the first claw 35a and the second claw 35b will abut, and the first claw 35a and the second claw 35b will not be able to continue to move.

[0102] Preferably, in an embodiment of the present application, in combination with Figure 11-14 , the first claw 35a and the second claw 35b include three sizes, and claws of different sizes are correspondingly used for packaging film rolls of different sizes.

[0103] As Figure 12 shown, the large-size first claw 35a and the second claw 35b are used for bending the large-size petals 38 corresponding to the large-size film roll.

[0104] As Figure 13 shown, the medium-size first claw 35a and the second claw 35b are used for bending the medium-size petals 38 corresponding to the medium-size film roll.

[0105] As Figure 14 shown, the small-size first claw 35a and the second claw 35b are used for bending the small-size petals 38 corresponding to the small-size film roll.

[0106] In an embodiment of the present application, by bending petals 38 of different sizes through claws of different sizes, the packaging effect of the film roll is better.

[0107] Preferably, in an embodiment of the present application, the side surfaces of the first claw 35a and the second claw 35b are arranged along the radial direction of the second mounting disc 34, so that when the side surfaces of the first claw 35a and the second claw 35b abut, the first claw 35a and the second claw 35b can form a circle, and the petals 382 are tightly clamped.

[0108] In an embodiment of the present application, the shrink disc 30 further comprises an inflatable chuck 37, the inflatable chuck 37 is installed on the second mounting disc 34, and the inflatable chuck 37 and the second mounting disc 34 are coaxially arranged, and the inflatable chuck 37 is used for supporting the film roll at the inner core position of the film roll.

[0109] In an embodiment of the present application, the driving structure 32 further comprises a motor 321 and a speed reducer 322, the input ends of the motor 321 and the speed reducer 322 are drivingly connected, and the rotating disc 33 is installed at the output end of the speed reducer 322. Through the setting of the speed reducer 322, the rotating disc 33 is further made to rotate at a lower speed, and the bending effect of the petal 382 is further better.

[0110] It should be noted that, in an embodiment of the present application, the content shown in Figs. Figure 11 , Figure 15 and Figure 16 , in which three sizes of clamping blocks are simultaneously installed on the second mounting disc 34, is only for illustratively describing the scheme of the present application. In actual use, only one size of clamping block will be loaded on the second mounting disc 34 at the same time.

[0111] Since the quality of the film roll is generally large, the adhesive tape winding unit 20 is generally driven to move. In an embodiment of the present application, similar to the structure in the adhesive tape automatic winding and cutting device with publication number CN 211895296 U, the output end of the motor 321 in the present application is further drivingly connected with the adhesive tape winding unit 20, and the adhesive tape winding unit 20 is driven to rotate around the film roll by the motor 321. Since the related structure has been disclosed in the prior art, it is not described in detail in the drawings and the content of the specification.

[0112] In an embodiment of the present application, the first mounting base 10 is provided with a sliding rail, and the sliding rail is arranged along the extension direction of the first mounting base 10. The two shrinkage discs 30 are slidingly connected on the sliding rail. When the length of the film roll to be packaged changes, the shrinkage disc 30 slides on the sliding rail to change the distance between the two shrinkage discs 30, so that the shrinkage disc 30 can clamp film rolls of different lengths.

[0113] Of course, a fixing structure is further arranged on the sliding rail, and the fixing structure can fix the shrinkage disc 30 after sliding on the sliding rail to ensure that the shrinkage disc 30 remains stable when clamping the film roll. The sliding rail and the fixing structure are both relatively common structures, and therefore are not shown in the drawings.

[0114] In an embodiment of the present application, the first mounting base 10 is further provided with a lifting structure, and the lifting structure 11 is arranged between the two shrinkage discs 30, and the lifting structure 11 is used to lift the film roll. After the lifting structure 11 is arranged, most of the weight of the film roll is borne by the lifting structure 11, so that the film roll can be stably packaged. Figure 1 In the drawings, only a schematic view of the lifting structure 11 is shown, and the lifting structure 11 generally comprises a lifting cylinder and a placing seat, the placing seat is arranged at the output end of the lifting cylinder, the lifting cylinder is used to drive the placing seat to move up and down, so that the film roll can be aligned with the inflatable chuck 37.

[0115] It can be understood that, for those ordinary skilled in the art, equivalent replacements or changes can be made according to the technical solutions and the inventive concept of the present application, and all these changes or replacements shall fall within the protection scope of the present application.

Claims

1. Packaging device for the end of a package roll, characterized in that, The utility model relates to a flower bending machine, including: First mounting seat, Two shrinkage discs are oppositely installed on both sides of the first mounting seat, and the shrinkage discs are used to bend the petal of the flower disc; The shrinkage disc includes: a second mounting seat, a driving structure, and a turntable fixedly connected to the output end of the driving structure, a second mounting disc fixedly connected with the second mounting seat, the turntable being arranged between the second mounting disc and the second mounting seat, a plurality of long holes being arranged on the second mounting disc, the plurality of long holes being distributed at equal angles along the radial direction of the second mounting disc, a plurality of first clamping claws being slidingly connected to the inner wall of the long hole, a plurality of second clamping claws being slidingly connected to the inner wall of the long hole, the first clamping claw and the second clamping claw being arranged at intervals, a traction structure including a plurality of first traction rods, a plurality of second traction rods, and a connecting rod corresponding in number to the second traction rods, one end of the first traction rod being rotatably connected to the turntable, the other end of the first traction rod being rotatably connected to the first clamping claw, one end of the connecting rod being fixedly connected to the turntable, one end of the second traction rod being rotatably connected to the other end of the connecting rod, the other end of the second traction rod being rotatably connected to the second clamping claw, the first traction rod and the second traction rod being located in different planes, the connecting rod being used to avoid interference between the first traction rod and the second traction rod during movement; Two adhesive tape winding units are respectively installed on the two shrinkage discs, and the adhesive tape winding unit includes: A first mounting plate, A first mounting disc is installed on the first mounting plate, and the first mounting disc is used to install an adhesive tape roll, A fastening structure including a first air cylinder and a fastening roller, the first air cylinder being installed on the first mounting plate, the fastening roller being rotatably connected to the first mounting plate, the fastening roller being in abutment with the adhesive surface of the adhesive tape, the first air cylinder being used to extend and abut against the fastening roller, A pressing structure is installed on the first mounting plate, and the pressing structure is used to press the adhesive tape against the roll; the pressing structure includes a first pressing roller and a second pressing roller, the first pressing roller and the second pressing roller being rotatably connected to the first mounting plate at intervals, the second pressing roller being arranged directly below the first pressing roller, the first pressing roller and the second pressing roller being used to cooperate to press the adhesive tape against the roll; and A cutting structure is installed on the first mounting plate, and the cutting structure is used to cut the adhesive tape; The adhesive tape sequentially passes through the fastening roller and the pressing structure, one end of the adhesive tape being arranged between the pressing structure and the roll, when the adhesive tape is cut, the output end of the first air cylinder extends and abuts against the fastening roller, so that the fastening roller is locked.

2. The packaging device for the end of a package roll according to claim 1, characterized in that, The adhesive tape winding unit further includes a second mounting plate, the second mounting plate being rotatably connected to the first mounting plate, a second air cylinder being installed on the second mounting plate, the second air cylinder being used to drive the first mounting plate to rotate relative to the second mounting plate. When cutting the adhesive tape, the first cylinder drives the first mounting plate to rotate, the first pressing roller is away from the roll, and the second pressing roller abuts against the roll.

3. The packaging apparatus for the end of a package roll according to claim 1, characterized in that, The adhesive tape winding unit further comprises an adhesive tape holder arranged between the fastening roller and the pressing structure, the adhesive tape holder being used to prevent the adhesive tape from deviating; The adhesive tape holder comprises a main body and two bent portions, the main body being a horizontal plate, the bent portions being "L"-shaped plates, the two bent portions being fixedly connected to the two sides of the main body respectively, the two bent portions and the main body forming a "convex" shaped through slot for the adhesive tape to pass through, the opening of the through slot being arranged downward, and the back surface of the adhesive tape abutting against the bent portions.

4. The packaging device for the end of a package roll according to claim 3, characterized in that, The adhesive tape winding unit further comprises a direction changing roller rotatably connected to the first mounting plate, the direction changing roller being arranged between the adhesive tape holder and the fastening roller, and the direction changing roller and the adhesive tape holder being arranged on the same horizontal plane.

5. The packaging apparatus for the end of a package roll of claim 1, wherein, The adhesive tape winding unit further comprises a first pressing plate rotatably connected to the first mounting plate and a torsion spring used to drive the first pressing plate to press the adhesive tape against the first pressing roller. The adhesive tape winding unit further comprises a second pressing plate mounted on the first mounting plate and used to flatten the petals and a third cylinder mounted on the first mounting plate and used to drive the second pressing plate to rotate.

6. The packaging apparatus for the end of a package roll of claim 1, wherein, The connecting rod is an "L"-shaped connecting rod, comprising a first portion and a second portion, the first portion of the connecting rod being perpendicular to the rotating disc, and the second portion of the connecting rod being rotatably connected to one end of the second traction rod.

7. The packaging device for the end of a package roll according to claim 6, characterized in that, The first traction rod and the second traction rod are of the same structure, the first clamping jaw and the second clamping jaw are of the same structure, and the first clamping jaw and the second clamping jaw are both provided with a circular arc surface facing the side of the center of the second mounting disc.

8. The apparatus for packaging the end of a package according to claim 1, characterized in that, The first mounting seat is provided with a slide rail, and the two retracting discs are slidably connected to the slide rail. The first mounting seat is further provided with a lifting structure arranged between the two retracting discs, and the lifting structure is used to lift the roll.

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