Automatic film connecting device and automatic film connecting method using the same

Abstract

The present invention provides an automatic film splicing device and an automatic film splicing method using the same. The automatic film splicing device includes a first film splicing device, a second film splicing device, a transfer device, a first feeding device, and a second feeding device. The first film splicing device includes a first film splicing table, a first upper rotating plate, and a first lower rotating plate. The second film splicing device includes a second film splicing table, a second upper rotating plate, and a second lower rotating plate. The transfer device is correspondingly arranged with the first film splicing table or the second film splicing table, and includes a transfer table, a third upper rotating plate, a third lower rotating plate, and a cutting element. The first feeding device supplies a first shrink film to the first film splicing device. The second feeding device supplies a second shrink film to the second film splicing device.

Description

Technical Field

[0001] The present invention provides an automatic film splicing device and an automatic film splicing method using the same. Background Art

[0002] Existing film splicing devices require manual attention at all times to the stock of the film material and rely on experience to judge whether the film material needs to be replaced. In addition, before the film material is about to run out, the production line must be manually stopped first, and then the new film material is manually replaced. Only after the old film material and the new film material are joined together can the production line be restarted for production. In addition, during the process of replacing the film material, it is necessary to rely on manual labor to cut the film material and the tape of an appropriate length, then manually align the front end of the new film material with the tail end of the old film material, and then join them with the tape.

[0003] However, in the prior art, since it is necessary to pay attention to the usage of the film material at all times to prevent the production line from stopping, the labor cost will increase. Secondly, since the speed of manually replacing the film material is slow and the operation time for replacing the film material by stopping the production line is long, a large economic loss will be caused. Furthermore, since it relies on manual alignment and fitting of the old and new film materials, each joining of the old and new film materials may result in deviation, making it difficult to quickly and stably fit the two rolls of film materials. In addition, the problem of contaminating the film material may occur during the manual fitting process. Moreover, in the prior art, the film material used for joining is a single-layer film material, and it is difficult to apply the joining technology of the single-layer film material to the double-layer film material for joining. Therefore, the joining technology of the double-layer film material still needs to be further developed or improved. To sum up, using the existing film splicing device may cause problems such as increased production costs, decreased production rate, reduced qualified rate, insecure joining of the shrink film, soiling of the film material, or difficulty in joining the double-layer film material.

[0004] Therefore, there is an urgent need to propose a brand-new automatic film splicing device and an automatic film splicing method using the same to alleviate or solve the above problems. Summary of the Invention

[0005] Based on the above problems, the present invention proposes an automatic film splicing device to reduce production costs, improve production rate, increase the qualified rate, firmly join the shrink film, or keep the shrink film clean.

[0006] To achieve the above object, according to the first form of the present invention, the automatic film connecting device of the present invention includes a first film connecting device, a second film connecting device, a transfer device, a first feeding device and a second feeding device. The first film connecting device includes a first film connecting table, a first upper rotating plate and a first lower rotating plate, wherein the first film connecting table has a first film connecting end; the first upper rotating plate is arranged at the first film connecting end of the first film connecting table; the first lower rotating plate is arranged at the first film connecting end of the first film connecting table, and the first upper rotating plate and the first lower rotating plate are arranged corresponding to each other. Therefore, the first upper rotating plate and the first lower rotating plate can rotate to open an angle (for example, 0 degree to 180 degrees). The second film connecting device includes a second film connecting table, a second upper rotating plate and a second lower rotating plate, wherein the second film connecting table has a second film connecting end; the second upper rotating plate is arranged at the second film connecting end of the second film connecting table; the second lower rotating plate is arranged at the second film connecting end of the second film connecting table, and the second upper rotating plate and the second lower rotating plate are arranged corresponding to each other. Similarly, the second upper rotating plate and the second lower rotating plate can rotate to open an angle (for example, 0 degree to 180 degrees).

[0007] Secondly, the transfer device is arranged corresponding to the first film connecting table or the second film connecting table. Therefore, the transfer device can receive the shrink film from the first film connecting device or the second film connecting device. At this time, the form of the shrink film can be a double-layer film material, but the present invention is not limited thereto, and it can also be a single-layer film material or a multi-layer film material. The transfer device includes a transfer table, a third upper rotating plate, a third lower rotating plate and a cutting element. The transfer table has a third film connecting end; the third upper rotating plate is arranged at the third film connecting end of the transfer table; the third lower rotating plate is arranged at the third film connecting end of the transfer table, and the third upper rotating plate and the third lower rotating plate are arranged corresponding to each other. Therefore, the third upper rotating plate and the third lower rotating plate can rotate to open an angle (for example, 0 degree to 180 degrees); the cutting element is arranged adjacent to the third film connecting end of the transfer table and is arranged between the first film connecting end and the third film connecting end or between the second film connecting end and the third film connecting end, so as to cut the first shrink film or the second shrink film. The cutting element can be scissors, a blade, a saw blade or any element suitable for cutting the shrink film, but the present invention is not limited thereto.

[0008] Thirdly, the first feeding device supplies the first shrink film to the first film connecting device. The second feeding device supplies the second shrink film to the second film connecting device. When the first shrink film is fed, the second shrink film is in a state of waiting for film connection. When only a predetermined length of the first shrink film remains, the second shrink film will be joined to the first shrink film, and then the second shrink film will be fed instead, and vice versa. The automatic film connecting method will be described below.

[0009] In the automatic film connecting device of the present invention, there is no special limitation on the means for joining the first shrink film and the second shrink film. For example, a tape, a colloid, welding or other film material joining methods can be used to join the first shrink film and the second shrink film.

[0010] In the automatic film connecting device of the present invention, the first film connecting device further includes a first upper adsorption element and a first lower adsorption element. The first upper adsorption element can be arranged on the first upper rotating plate, and the first lower adsorption element can be arranged on the first lower rotating plate. The first upper adsorption element and the first lower adsorption element are arranged adjacent to the third film connecting end of the transfer table, but the present invention is not limited thereto. In addition, the first upper adsorption unit and the first lower adsorption unit can respectively adsorb the tape, and the opposite side of the adhesive surface of the tape is adsorbed on the surfaces of the first upper rotating plate and the first lower rotating plate, but the present invention is not limited thereto.

[0011] In the automatic film connecting device of the present invention, the first film connecting device further includes a first roller, which is arranged at the first film inlet end of the first film connecting table, and the first film inlet end is opposite to the first film connecting end, but the present invention is not limited thereto. Secondly, the first shrink film can pass between the first film connecting table and the first roller, and the first roller is used to maintain the stable supply of the first shrink film, but the present invention is not limited thereto.

[0012] In the automatic film connecting device of the present invention, the second film connecting device further includes a second upper adsorption element and a second lower adsorption element. The second upper adsorption element can be arranged on the second upper rotating plate, and the second lower adsorption element can be arranged on the second lower rotating plate. The second upper adsorption element and the second lower adsorption element are arranged adjacent to the third film connecting end of the transfer table, but the present invention is not limited thereto. In addition, the second upper adsorption unit and the second lower adsorption unit can respectively adsorb the tape, and the opposite side of the adhesive surface of the tape is adsorbed on the surfaces of the second upper rotating plate and the second lower rotating plate, but the present invention is not limited thereto.

[0013] In the automatic film connecting device of the present invention, the second film connecting device further includes a second roller, which is arranged at the second film inlet end of the second film connecting table, and the second film inlet end is opposite to the second film connecting end, but the present invention is not limited thereto. Secondly, the second shrink film can pass between the second film connecting table and the second roller, and the second roller is used to maintain the stable supply of the second shrink film, but the present invention is not limited thereto.

[0014] In the automatic film connecting device of the present invention, the first film connecting device and the second film connecting device can be arranged adjacent to each other, but the present invention is not limited thereto. For example, the first film connecting device and the second film connecting device can be arranged in an up-and-down stacked manner or side-by-side.

[0015] In the automatic film connecting device of the present invention, the transfer device further includes a guide wheel to enable the first shrink film or the second shrink film to move along the conveying direction, but the present invention is not limited thereto.

[0016] In the automatic film connecting device of the present invention, the cutting element can be arranged on the third upper rotating plate to cut the first shrink film or the second shrink film, but the present invention is not limited thereto.

[0017] In the automatic film splicing device of the present invention, it further includes a moving element, pivotally connected to the transfer device, and enabling the transfer device to move towards or away from the first film splicing device or the second film splicing device, so that the transfer device can correspond to the first film splicing device or the second film splicing device, and receive the first shrink film from the first film splicing device or the second shrink film from the second film splicing device, but the present invention is not limited thereto.

[0018] In the automatic film splicing device of the present invention, it further includes an electric motor, connected to the guide wheel, for driving the guide wheel, where the electric motor can be a DC motor, an AC motor, or any suitable type of motor, but the present invention is not limited thereto.

[0019] According to the second form of the present invention, the present invention also provides an automatic film splicing method, including the following steps:

[0020] Step S1: Provide the automatic film splicing device as described above.

[0021] Step S2: Set the first shrink film on the first feeding device, and supply the first shrink film to the first film splicing device and the transfer device, and the first shrink film is transported on the first film splicing table and the transfer table.

[0022] Step S3: Set the second shrink film on the second feeding device, and supply the second shrink film to the second film splicing table of the second film splicing device. One end of the second shrink film is arranged corresponding to the second film splicing end. After the second shrink film is sheared, a first film layer and a second film layer are formed. The first film layer is arranged on the second upper rotating plate, and the second film layer is arranged on the first lower rotating plate. The surfaces of the second upper rotating plate and the second lower rotating plate respectively face the third film splicing end of the transfer table. Therefore, the second film splicing device is in a waiting state for film splicing at this time and can perform film splicing at any time.

[0023] Step S4: When the first shrink film has a remaining predetermined length on the first feeding device, the surfaces of the third upper rotating plate and the third lower rotating plate face each other, and the first shrink film is cut by a cutting element.

[0024] Step S5: Move the transfer device to make the transfer table correspond to the second film splicing table.

[0025] Step S6: Flip the second upper rotating plate and the second lower rotating plate so that the surfaces of the second upper rotating plate and the second lower rotating plate face each other, to join the first film layer on the second upper rotating plate and the second film layer on the second lower rotating plate with the first shrink film.

[0026] In the automatic film splicing method of the present invention, the first film layer and the second film layer of the second shrink film can be joined with the first shrink film by any means; for example, they can be combined with the first shrink film by tape, colloid, welding, or other film material joining methods.

[0027] In the automatic film splicing method of the present invention, the first film layer on the second upper rotating plate and the second film layer on the second lower rotating plate can be respectively joined to the first shrink film through tapes. Similarly, the first film layer on the first upper rotating plate and the second film layer on the first lower rotating plate can also be respectively joined to the second shrink film through tapes.

[0028] As will be described in detail below in conjunction with the drawings, other objects, advantages, and novelties of the present invention will become more apparent. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a perspective schematic view of an automatic film splicing device according to an embodiment of the present invention.

[0030] FIGS. 2(A) to 2(C) are perspective schematic views of a transfer device according to an embodiment of the present invention.

[0031] Figures 3(A) to 3(B) is a perspective schematic view of a film splicing device according to an embodiment of the present invention.

[0032] Figures 4(A) to 4(C) is a perspective schematic view of a film splicing device according to an embodiment of the present invention.

[0033] Figures 5 to 10 is a side view of the operation of an automatic film splicing device according to an embodiment of the present invention.

[0034] SYMBOL DESCRIPTION

[0035] 1 First film splicing device

[0036] 2 Second film splicing device

[0037] 3 Transfer device

[0038] 4 Moving element

[0039] 5 First feeding device

[0040] 6 Second feeding device

[0041] 7 First shrink film

[0042] 7a First film layer

[0043] 7b Second film layer

[0044] 8 Second shrink film

[0045] 8a First film layer

[0046] 8b Second film layer

[0047] 9 Bracket

[0048] 10 Motor

[0049] 11 First film splicing table

[0050] 11a First film receiving end

[0051] 11b First film feeding end

[0052] 12 Side plate

[0053] 13 First upper turning plate

[0054] 14 First lower turning plate

[0055] 15 First roller

[0056] 21 Second film receiving table

[0057] 21a Second film receiving end

[0058] 21b Second film feeding end

[0059] 22 Side plate

[0060] 23 Second upper turning plate

[0061] 24 Second lower turning plate

[0062] 25 Second roller

[0063] 31 Transfer table

[0064] 31a Third film receiving end

[0065] 31b Third film discharging end

[0066] 32 Guide wheel

[0067] 33 Third upper turning plate

[0068] 34 Third lower turning plate

[0069] 35 Cutting element

[0070] 36 Front side plate

[0071] 37 Rear side plate

[0072] 38 Roller

[0073] 91 Track

[0074] 100 Automatic film receiving device

[0075] 111 First side

[0076] 112 Second side

[0077] 131 First upper adsorption element

[0078] 132 Tape

[0079] 141 First lower adsorption element

[0080] 142 Tape

[0081] 211 First side

[0082] 212 Second side

[0083] 231 Second upper adsorption element

[0084] 232 Tape

[0085] 241 Second lower adsorption element

[0086] 242 Tape

[0087] 311 First side

[0088] 312 Second side

[0089] C Cutting direction

[0090] D Conveying direction

[0091] F Long axis direction Detailed implementation manners

[0092] The following provides different embodiments of the present invention. These embodiments are used to illustrate the technical content of the present invention, rather than to limit the protection scope of the present invention. A feature of one embodiment can be applied to other embodiments through appropriate modification, replacement, combination, and separation.

[0093] It should be noted that in this article, except as specifically indicated, ordinal numbers such as "first" and "second" are only used to distinguish multiple elements with the same name, and do not indicate the existence of a rank, level, execution order, or process order between them. A "first" element and a "second" element may appear in the same component together, or may appear in different components separately. The existence of an element with a larger ordinal number does not necessarily mean the existence of another element with a smaller ordinal number.

[0094] In addition, in this article, terms such as "upper", "lower", or "between" are only used to describe the relative positions between multiple elements, and can be extended in interpretation to include cases of translation, rotation, or mirroring.

[0095] In addition, in this article, except as specifically indicated, the statement "one element is on another element" or a similar statement does not necessarily mean that the element contacts the other element.

[0096] Automatic film splicing equipment

[0097] Figure 1 is a three-dimensional schematic diagram of the automatic film splicing equipment according to an embodiment of the present invention.

[0098] AsFigure 1 As shown, the automatic film splicing device 100 of this embodiment includes a first film splicing device 1, a second film splicing device 2, a transfer device 3, a moving element 4, a first feeding device 5, a second feeding device 6, a first shrink film 7, a second shrink film 8, a bracket 9 and a motor 10. Among them, the first film splicing device 1 and the second film splicing device 2 are arranged in a stacked manner; in another embodiment, the first film splicing device 1 and the second film splicing device 2 can be arranged side by side.

[0099] In addition, the moving element 4 is arranged on the track 91 of the bracket 9, and the moving element 4 is pivotally connected to the transfer device 3. Therefore, the moving element 4 moves along the long axis direction F of the track 91 of the bracket 9 and simultaneously drives the transfer device 3, so that the transfer device 3 can move towards or away from the first film splicing device 1 or the second film splicing device 2. Thus, the transfer device 3 can be correspondingly arranged with the first film splicing device 1 or the second film splicing device 2 to receive the first shrink film 7 from the first film splicing device 1 or the second shrink film 8 from the second film splicing device 2. Among them, in one embodiment, the first shrink film 7 and the second shrink film 8 are respectively double-layer film materials, but it is not limited thereto.

[0100] Secondly, the transfer device 3 also has a guide wheel 32, and the guide wheel 32 is connected to the motor 10. Therefore, the guide wheel 32 can be driven to rotate by the motor 10, so that the first shrink film 7 or the second shrink film 8 moves along the conveying direction D. Here, the rotation direction of the guide wheel 32 can be determined by the conveying direction D.

[0101] Furthermore, the first feeding device 5 supplies the first shrink film 7 to the first film splicing device 1, and the second feeding device 6 supplies the second shrink film 8 to the second film splicing device 2, where the first feeding device 5 and the second feeding device 6 are arranged side by side; in another embodiment, the first feeding device 5 and the second feeding device 6 can be arranged in a stacked manner.

[0102] In this embodiment, the automatic film splicing device 100 includes two film splicing devices (the first film splicing device 1 and the second film splicing device 2 respectively) and two feeding devices (the first feeding device 5 and the second feeding device 6 respectively). However, the present invention is not limited thereto. In other embodiments of the present invention, the automatic film splicing device 100 can include three or more film splicing devices and three or more feeding devices, as long as the number of film splicing devices corresponds to the number of feeding devices.

[0103] Figures 2(A) to 2(C) are three-dimensional schematic diagrams of the transfer device according to an embodiment of the present invention.

[0104] As shown in FIG. 2(A) (the third upper rotating plate 33 and the third lower rotating plate 34 are in the open state, and the included angle between them is 180 degrees), the transfer device 3 includes a transfer table 31, guide wheels 32, a third upper rotating plate 33, a third lower rotating plate 34, a cutting element 35, a front side plate 36, a rear side plate 37, and rollers 38. Among them, the transfer table 31 has a third film receiving end 31a, a third film discharging end 31b, a first side 311, and a second side 312, and the transfer table 31 is arranged between two front side plates 36 and two rear side plates 37; in addition, the first shrink film 7 or the second shrink film 8 is conveyed on the first side 311 of the transfer table 31, and the second side 312 is the opposite side of the first side 311. Secondly, the guide wheels 32 are arranged at the third film discharging end 31b of the transfer table 31 and are driven by a motor 10 (as Figure 1 shown) so that the first shrink film 7 or the second shrink film 8 can move along the conveying direction D. Furthermore, the rollers 38 are arranged on the transfer table 31, and the first shrink film 7 or the second shrink film 8 can pass between the rollers 38 and the transfer table 31 to maintain the stable supply of the first shrink film 7 or the second shrink film 8. In addition, the third upper rotating plate 33 is arranged at the third film receiving end 31a of the transfer table 31 and is pivotally connected to two rear side plates 37, and the third lower rotating plate 34 is arranged at the third film receiving end 31a of the transfer table 31 and is pivotally connected to two rear side plates 37, wherein the third upper rotating plate 33 and the third lower rotating plate 34 are correspondingly arranged, so the third upper rotating plate 33 and the third lower rotating plate 34 can rotate and open a predetermined angle. In FIG. 2(A), the third upper rotating plate 33 and the third lower rotating plate 34 open 180 degrees; however, in other embodiments of the present invention, the opening angle of the third upper rotating plate 33 and the third lower rotating plate 34 is not limited to this, as long as it does not affect the movement of the first shrink film 7 or the second shrink film 8. Additionally, the cutting element 35 is arranged on the third upper rotating plate 33 to cut the first shrink film 7 or the second shrink film 8; in another embodiment, the cutting element 35 can be arranged on the third lower rotating plate 34.

[0105] As shown in FIG. 2(B) (the third upper rotating plate 33 and the third lower rotating plate 34 are in the closed state, and the included angle between them is 0 degree), by rotating the third upper rotating plate 33 and the third lower rotating plate 34, the third upper rotating plate 33 and the third lower rotating plate 34 can be changed to the closed state to clamp and fix the first shrink film 7 or the second shrink film 8, which is beneficial for the cutting element 35 to cut the first shrink film 7 or the second shrink film 8.

[0106] As shown in FIG. 2(C) (the third upper rotating plate 33 and the third lower rotating plate 34 are in the closed state, and the cutting element 35 is actuated), the cutting element 35 can move along the cutting direction C perpendicular to the conveying direction D to cut the first shrink film 7 or the second shrink film 8.

[0107] Figures 3(A) to 3(B) is a perspective view of the film receiving device according to an embodiment of the present invention.

[0108] As shown in FIG. 3(A) (the first upper turning plate 13 and the first lower turning plate 14 or the second upper turning plate 23 and the second lower turning plate 24 are in the open state, and the included angle between them is 180 degrees), the first film receiving device 1 includes a first film receiving table 11, side plates 12, a first upper turning plate 13, a first lower turning plate 14, and a first roller 15. Among them, the first film receiving table 11 has a first film receiving end 11a, a first film feeding end 11b, a first side 111, and a second side 112, and the first film receiving table 11 is disposed between the two side plates 12. The first upper turning plate 13 is disposed at the first film receiving end 11a of the first film receiving table 11 and pivotally connected to the two side plates 12, and a first upper adsorption element 131 is disposed on the first upper turning plate 13; and the first lower turning plate 14 is disposed at the first film receiving end 11a of the first film receiving table 11 and pivotally connected to the two side plates 12, and a first lower adsorption element 141 is disposed on the first lower turning plate 14; in addition, the first upper turning plate 13 and the first lower turning plate 14 are correspondingly disposed, and the first upper adsorption element 131 and the first lower adsorption element 141 disposed on them respectively are also correspondingly disposed, so that the first upper turning plate 13 and the first lower turning plate 14 can rotate to open a predetermined angle. In FIG. 3(A), the first upper turning plate 13 and the first lower turning plate 14 are opened 180 degrees; however, in other embodiments of the present invention, the opening angle of the first upper turning plate 13 and the first lower turning plate 14 is not limited to this, as long as it does not affect the subsequent joining of the shrink film. The first roller 15 is disposed at the first film feeding end 11b of the first film receiving table 11, wherein the first shrink film 7 can pass between the first film receiving table 11 and the first roller 15 and be conveyed on the first side 111 of the first film receiving table 11, and the second side 112 is the opposite side of the first side 111, so as to maintain a stable supply of the first shrink film 7 through the first roller 15 (as shown in FIG. 4(B)).

[0109] In addition, the second film connecting device 2 includes a second film connecting table 21, side plates 22, a second upper rotating plate 23, a second lower rotating plate 24, and a second roller 25. Among them, the second film connecting table 21 has a second film connecting end 21a, a second film feeding end 21b, a first side 211, and a second side 212, and the second film connecting table 21 is disposed between the two side plates 22. The second upper rotating plate 23 is disposed at the second film connecting end 21a of the second film connecting table 21 and pivotally connected to the two side plates 22, and a second upper adsorption element 231 is provided on the second upper rotating plate 23; while the second lower rotating plate 24 is disposed at the second film connecting end 21a of the second film connecting table 21 and pivotally connected to the two side plates 22, and a second lower adsorption element 241 is provided on the second lower rotating plate 24; in addition, the second upper rotating plate 23 and the second lower rotating plate 24 are correspondingly disposed, and the second upper adsorption element 231 and the second lower adsorption element 241 provided thereon are also correspondingly disposed. Therefore, similarly, the second upper rotating plate 23 and the second lower rotating plate 24 can also rotate and open a predetermined angle. In Fig. 3(A), the second upper rotating plate 23 and the second lower rotating plate 24 are opened 180 degrees; however, in other embodiments of the present invention, the opening angle of the second upper rotating plate 23 and the second lower rotating plate 24 is not limited thereto, as long as it does not affect the subsequent joining of the shrink film. The second roller 25 is disposed at the second film feeding end 21b of the second film connecting table 21, wherein the second shrink film 8 can pass between the second film connecting table 21 and the second roller 25 and be conveyed on the first side 211 of the second film connecting table 21, and the second side 212 is the opposite side of the first side, so as to maintain the stable supply of the second shrink film 8 through the second roller 25 (as shown in Fig. 4(B)).

[0110] As shown in Fig. 3(B) (the first upper rotating plate 13 and the first lower rotating plate 14 or the second upper rotating plate 23 and the second lower rotating plate 24 are in the closed state, and the included angle between the two is 0 degree), by rotating the first upper rotating plate 13 and the first lower rotating plate 14 or the second upper rotating plate 23 and the second lower rotating plate 24, the first upper rotating plate 13 and the first lower rotating plate 14 or the second upper rotating plate 23 and the second lower rotating plate 24 can be changed to the closed state, which is beneficial to joining the first shrink film 7 or the second shrink film 8, and the automatic film connecting method will be described in detail below.

[0111] Figures 4(A) to 4(C) It is a perspective schematic view of a film connecting device according to an embodiment of the present invention.

[0112] As shown in FIG. 4(A), the first upper adsorption element 131 and the first lower adsorption element 141 can respectively adsorb the tapes 132 and 142. The opposite sides of the adhesive surfaces of the tapes 132 and 142 are adsorbed on the surfaces of the first upper rotating plate 13 and the first lower rotating plate 14, that is, the tapes 132 and 142 are respectively adsorbed on the first upper adsorption element 131 and the first lower adsorption element 141. Similarly, the second upper adsorption element 231 and the second lower adsorption element 241 can respectively adsorb the tapes 232 and 242. The opposite sides of the adhesive surfaces of the tapes 232 and 242 are adsorbed on the surfaces of the second upper rotating plate 23 and the second lower rotating plate 24, that is, the tapes 232 and 242 are respectively adsorbed on the second upper adsorption element 231 and the second lower adsorption element 241.

[0113] As shown in FIG. 4(B), the first shrink film 7 passes between the first upper rotating plate 13 and the first lower rotating plate 14 and is disposed on the first side 111 of the first film receiving table 11, and the first shrink film 7 passes through and protrudes from the first upper rotating plate 13 and the first lower rotating plate 14. Similarly, the second shrink film 8 passes between the second upper rotating plate 23 and the second lower rotating plate 24 and is disposed on the first side 211 of the second film receiving table 21, and the second shrink film 8 passes through and protrudes from the second upper rotating plate 23 and the second lower rotating plate 24.

[0114] As shown in FIG. 4(C), since the shrink film is a flattened cylindrical plastic film, the sheared first shrink film 7 has a first film layer 7a and a second film layer 7b (i.e., the first shrink film 7 is a double-layer film material). The first film layer 7a of the first shrink film 7 is adsorbed on the first upper adsorption element 131 (as shown in FIG. 4(A)), and the second film layer 7b of the first shrink film 7 is adsorbed on the first lower adsorption element 141 (as shown in FIG. 4(A)), and the tapes 132 and 142 are not completely covered by the first film layer 7a or the second film layer 7b of the first shrink film 7. Similarly, the sheared second shrink film 8 has a first film layer 8a and a second film layer 8b (i.e., the second shrink film 8 is a double-layer film material). The first film layer 8a of the second shrink film 8 is adsorbed on the second upper adsorption element 231 (as shown in FIG. 4(A)), and the second film layer 8b of the second shrink film 8 is adsorbed on the second lower adsorption element 241 (as shown in FIG. 4(A)), and the tapes 232 and 242 are not completely covered by the first film layer 8a and the second film layer 8b of the second shrink film 8. Therefore, the uncovered portions of the tapes 132, 142, 232, and 242 can be joined to the first shrink film 7 or the second shrink film 8 to connect the first shrink film 7 and the second shrink film 8 to each other.

[0115] In this embodiment, the first film layer 7a and the second film layer 7b of the first shrink film 7 and the first film layer 8a and the second film layer 8b of the second shrink film 8 are joined to the first shrink film 7 or the second shrink film 8 by tapes 132, 142, 232, and 242; however, the present invention is not limited thereto. In other embodiments of the present invention, the first film layer 7a and the second film layer 7b of the first shrink film 7 or the first film layer 8a and the second film layer 8b of the second shrink film 8 can be joined by other means. For example, they can be joined by glue, welding, or other film joining methods.

[0116] In addition, in this embodiment, as Figures 4(A) to 4(C) shown, the first upper adsorption element 131, the first lower adsorption element 141, the second upper adsorption element 231, and the second lower adsorption element 241 can respectively adsorb the first film layer 7a and the second film layer 7b of the first shrink film 7 and the first film layer 8a and the second film layer 8b of the second shrink film 8 on them by air flow, static electricity, or other means. In addition, the first upper adsorption element 131, the first lower adsorption element 141, the second upper adsorption element 231, and the second lower adsorption element 241 can also respectively adsorb the tapes 132, 142, 232, and 242 on them by air flow, static electricity, or other means.

[0117] Automatic film joining method

[0118] Figures 5 to 10 is an action side view of an automatic film joining device according to an embodiment of the present invention.

[0119] As Figure 5 shown (in the state of feeding by the first shrink film 7), the first shrink film 7 is set on the first feeding device 5 (as Figure 1 shown), and the first shrink film 7 is supplied to the first film joining device 1 and the transfer device 3, and the first shrink film 7 is transported on the first film joining table 11 and the transfer table 31. In this embodiment, the first shrink film 7 is fed first; however, the present invention is not limited thereto. In other embodiments of the present invention, the second shrink film 8 can be fed first.

[0120] In addition, by the motor 10 (as Figure 1As shown, it drives the guide pulley 32 to rotate, thereby quickly rolling the first shrink film 7 for feeding. Therefore, the third upper rotating plate 33 and the third lower rotating plate 34 on the transfer device 3 are in an open state, and the first upper rotating plate 13 and the first lower rotating plate 14 of the first film receiving device 1 are also in an open state to allow slight vibrations during the rapid rolling of the first shrink film 7, maintain the smooth feeding of the first shrink film 7, or prevent damage to the first shrink film 7. In this embodiment, the third upper rotating plate 33 and the third lower rotating plate 34 or the first upper rotating plate 13 and the first lower rotating plate 14 open 180 degrees; however, in other embodiments of the present invention, the opening angle of the third upper rotating plate 33 and the third lower rotating plate 34 or the first upper rotating plate 13 and the first lower rotating plate 14 is not limited to this, as long as it does not affect the movement of the shrink film.

[0121] Meanwhile, as shown in FIGS. 4(C) and Figure 5 shown, the second film receiving device 2 is in a preparatory film receiving state and is ready to perform the film receiving action at any time. Therefore, the second shrink film 8 is set on the second feeding device 6 (as Figure 1 shown), and the second shrink film 8 is supplied to the second film receiving table 21 of the second film receiving device 2. One end of the second shrink film 8 is arranged corresponding to the second film receiving end 21a (as shown in FIG. 4(B)), and the second shrink film 8 passes through and protrudes between the second upper rotating plate 23 and the second lower rotating plate 24 (as shown in FIG. 4(B)). In addition, since the shrink film is a flattened cylindrical plastic film, the first film layer 8a and the second film layer 8b can be formed by shearing both sides of the second shrink film 8. Among them, the first film layer 8a of the second shrink film 8 is adsorbed on the second upper adsorption element 231 (as shown in FIG. 4(A)), and the second film layer 8b of the second shrink film 8 is adsorbed on the second lower adsorption element 241 (as shown in FIG. 4(A)). The surfaces of the second upper rotating plate 23 and the second lower rotating plate 24 face the third film receiving end 31a of the transfer table 31 (as Figure 1 shown). Secondly, since only part of the first film layer 8a and the second film layer 8b of the second shrink film 8 are pasted on the tapes 232 and 242, the parts of the tapes 232 and 242 not covered by the first film layer 8a and the second film layer 8b of the second shrink film 8 can be used to join with the first shrink film 7. In this embodiment, the first shrink film 7 and the second shrink film 8 are joined by the tapes 132, 142, 232, and 242; however, the present invention is not limited to this. In other embodiments of the present invention, the first shrink film 7 and the second shrink film 8 can be joined by other means. For example, they can be joined by glue, welding, or other film material joining methods.

[0122] As Figure 6 shown (the state where the cutting element 35 cuts the first shrink film 7), when a predetermined length of the first shrink film 7 remains on the first feeding device 5 (i.e., it means that the first shrink film 7 is about to be used up), at this time, the motor 10 (as Figure 1As shown, it is in a stopped state and ready for film splicing. Here, the automatic film splicing device further includes a detection unit (not shown in the figure) for detecting the amount of the first shrink film 7 or the second shrink film 8 remaining on the first feeding device 5 or the second feeding device 6. The type of the detection unit is not particularly limited. For example, it can be an optical detection unit or other detection units. When ready for film splicing, the third upper rotating plate 33 and the third lower rotating plate 34 on the transfer device 3 are opposite to each other on the surface (i.e., in a closed state), and the first upper rotating plate 13 and the first lower rotating plate 14 of the first film splicing device 1 are also in a closed state. Thus, the first shrink film 7 is clamped between the third upper rotating plate 33 and the third lower rotating plate 34, and also between the first upper rotating plate 13 and the first lower rotating plate 14, which can effectively fix the first shrink film 7. Then, the first shrink film 7 is cut by the cutting element 35 (as shown in Fig. 2(C)) to form a uniform and neat cutting surface. In this embodiment, the cutting element 35 is a blade; however, the present invention is not limited thereto. In other embodiments of the present invention, the cutting element 35 can be scissors, a saw blade or any element suitable for cutting shrink film.

[0123] As Figure 7 shown (move the transfer device 3 so that the transfer table 31 is correspondingly arranged with the second film splicing table 21 of the second film splicing device 2), after the first shrink film 7 has been cut by the cutting element 35, first flip the third upper rotating plate 33, and the third lower rotating plate 34 remains in place, so that the third lower rotating plate 34 can support the first shrink film 7 to prevent the first shrink film 7 from sagging downward. Then, move the transfer device 3 so that the transfer table 31 is correspondingly arranged with the second film splicing table 21 of the second film splicing device 2. In this embodiment, the third upper rotating plate 33 and the third lower rotating plate 34 are opened 90 degrees; however, the present invention is not limited thereto. In other embodiments of the present invention, as long as the positions of the third upper rotating plate 33 and the third lower rotating plate 34 do not affect the shrink film bonding or can support the shrink film.

[0124] As shown in Fig. 4(C) and Figure 8 shown (the first film layer 8a of the second shrink film 8 is bonded to the first shrink film 7), flip the second upper rotating plate 23 so that the tape 232 fixed to the second upper rotating plate 23 is attached to the first shrink film 7, thus simultaneously bonding the first film layer 8a of the second shrink film 8 attached to the tape 232 to the first shrink film 7. In addition, the setting of the third lower rotating plate 34 can effectively support the first shrink film 7, improve the bonding quality, and prevent the occurrence of incomplete bonding.

[0125] As shown in Fig. 4(C) and Figure 9As shown (the second film layer 8b of the second shrink film 8 is joined to the first shrink film 7), turn over the third lower turning plate 34 to open the third upper turning plate 33 and the third lower turning plate 34 for joining the second film layer 8b of the second shrink film 8 to the first shrink film 7. In this embodiment, the third upper turning plate 33 and the third lower turning plate 34 are opened 180 degrees; however, the present invention is not limited thereto. In other embodiments of the present invention, as long as the positions of the third upper turning plate 33 and the third lower turning plate 34 do not affect the joining of the shrink film. Then, the second upper turning plate 23 is held in place to provide the required supporting force for joining the second film layer 8b of the second shrink film 8, which helps to improve the joining quality. Subsequently, turn over the second lower turning plate 24 to make the surfaces of the second upper turning plate 23 and the second lower turning plate 24 face each other, and join the tape 242 fixed to the second lower turning plate 24 to the first shrink film 7, so as to join the second film layer 8a of the second shrink film 8 attached to the tape 242 to the first shrink film 7 at the same time. Since the first film layer 8a and the second film layer 8b of the second shrink film 8 have been joined to the first shrink film 7 respectively, the second shrink film 8 is successfully joined to the first shrink film 7.

[0126] As Figure 10 shown (the state of feeding by the second shrink film 8), turn over the second upper turning plate 23 and the second lower turning plate 24 to open the second upper turning plate 23 and the second lower turning plate 24, and restore the rotation speed of the guide wheel 32 by the motor 10 (as Figure 1 shown) to feed by the second shrink film 8. In this embodiment, the included angle between the second upper turning plate 23 and the second lower turning plate 24 is 180 degrees, but the present invention is not limited thereto, as long as the positions of the second upper turning plate 23 and the second lower turning plate 24 do not affect the movement of the shrink film. Moreover, when the second shrink film 8 is about to be used up, it can also be joined to the first shrink film 7 in the same way by simply replacing it according to the foregoing steps, so as to achieve the effect of automatic film joining, and has the advantages of reducing production costs, improving production efficiency, increasing the qualification rate, firmly joining the shrink film or keeping the shrink film clean.

[0127] Although the present invention has been illustrated by the embodiments, it should be understood that many other possible modifications and variations can be made as long as they do not depart from the spirit of the present invention and the scope claimed by the claims.

Claims

1. An automatic film connecting device, characterized in that, Comprising: A first film connecting device, comprising: A first film connecting table, having a first film connecting end; A first upper rotating plate, disposed at the first film connecting end of the first film connecting table; and A first lower rotating plate, disposed at the first film connecting end of the first film connecting table, wherein the first lower rotating plate is correspondingly disposed with the first upper rotating plate; A second film connecting device, comprising: A second film connecting table, having a second film connecting end; A second upper rotating plate, disposed at the second film connecting end of the second film connecting table; and A second lower rotating plate, disposed at the second film connecting end of the second film connecting table, wherein the second upper rotating plate is correspondingly disposed with the second lower rotating plate; A transfer device, correspondingly disposed with the first film connecting table or the second film connecting table, and comprising: A transfer table, having a third film connecting end; A third upper rotating plate, disposed at the third film connecting end of the transfer table; A third lower rotating plate, disposed at the third film connecting end of the transfer table, wherein the third upper rotating plate is correspondingly disposed with the third lower rotating plate; and A cutting element, disposed adjacent to the third film connecting end of the transfer table, and disposed between the first film connecting end and the third film connecting end or between the second film connecting end and the third film connecting end; A first feeding device, supplying a first shrink film to the first film connecting device; and A second feeding device, supplying a second shrink film to the second film connecting device.

2. The automatic film connecting device according to claim 1, wherein Further comprising a moving element, pivotally connected to the transfer device, and moving the transfer device towards or away from the first film connecting device or the second film connecting device.

3. The automatic film connecting device according to claim 1, wherein, The first film connecting device further comprises: A first upper adsorption element, disposed on the first upper rotating plate; and A first lower adsorption element, disposed on the first lower rotating plate.

4. The automatic film splicing device according to claim 3, wherein The first upper adsorption element and the first lower adsorption element respectively adsorb a tape, and the opposite side of the adhesive surface of the tape is adsorbed on the surfaces of the first upper rotating plate and the first lower rotating plate.

5. The automatic film connecting device according to claim 1, wherein The second film connecting device further comprises: A second upper adsorption element, disposed on the second upper rotating plate; and A second lower adsorption element, disposed on the second lower rotating plate.

6. The automatic film splicing device according to claim 5, wherein The second upper adsorption element and the second lower adsorption element respectively adsorb a tape, and the opposite side of the adhesive surface of the tape is adsorbed on the surfaces of the second upper rotating plate and the second lower rotating plate.

7. The automatic film connecting device according to claim 1, wherein, The first film connecting device further comprises a first roller, disposed at a first film feeding end of the first film connecting table, and the first film feeding end is opposite to the first film connecting end.

8. The automatic film splicing device according to claim 7, wherein, The first shrink film passes between the first film connecting table and the first roller.

9. The automatic film splicing device according to claim 1, wherein, The second film connecting device further comprises a second roller, disposed at a second film feeding end of the second film connecting table, and the second film feeding end is opposite to the second film connecting end.

10. The automatic film connecting device according to claim 9, characterized in that, The second shrink film passes between the second film connecting table and the second roller.

11. The automatic film splicing device according to claim 1, characterized in that, The cutting element is disposed on the third upper rotating plate.

12. The automatic film connecting device according to claim 1, wherein, The first film connecting device and the second film connecting device are adjacently disposed.

13. An automatic film splicing method, characterized in that, Comprising the following steps: Providing the automatic film connecting device as described in claim 1; Placing the first shrink film on the first feeding device, supplying the first shrink film to the first film connecting device and the transfer device, and the first shrink film is transmitted on the first film connecting table and the transfer table; Set the second shrink film on the second feeding device, and supply the second shrink film to the second film receiving table of the second film receiving device. One end of the second shrink film is arranged corresponding to the second film receiving end. After the second shrink film is sheared, a first film layer and a second film layer are formed. The first film layer is arranged on the second upper rotating plate, and the second film layer is arranged on the second lower rotating plate. The surfaces of the second upper rotating plate and the second lower rotating plate respectively face the third film receiving end of the transfer table; When a predetermined length remains of the first shrink film on the first feeding device, the surfaces of the third upper rotating plate and the third lower rotating plate face each other, and the first shrink film is cut by the cutting element; Move the transfer device to make the transfer table and the second film receiving table correspondingly arranged; Flip the second upper rotating plate and the second lower rotating plate so that the surfaces of the second upper rotating plate and the second lower rotating plate face each other to join the first film layer on the second upper rotating plate and the second film layer on the second lower rotating plate to the first shrink film.

14. The automatic film splicing method according to claim 13, wherein The first film layer on the second upper rotating plate and the second film layer on the second lower rotating plate are respectively joined to the first shrink film through a tape.

Images