Protective film unwinding mechanism

Abstract

The utility model discloses a protective film unwinding mechanism which comprises a bottom plate, a stand column is fixed to the bottom plate, a transverse rod is fixed to the edge of the stand column, a cross beam is arranged on the transverse rod, a transverse plate is installed on the surface of the cross beam, placing grooves are formed in the two ends of the transverse plate, and transverse shafts are arranged on the inner sides of the placing grooves. A mounting bearing is arranged between the transverse shaft and the transverse plate, and a fastening bolt rod is mounted on the outer side of the mounting bearing. According to the protective film unwinding mechanism, the unwinding wheels can be installed at the two ends of the transverse plate, so that when the unwinding wheel at one end of the transverse plate releases a protective film, the unwinding wheel can be installed at the other end of the transverse plate, and when the unwinding wheel completing unwinding of the protective film needs to be replaced, only connection between an insertion rod and an extension rod and a transverse shaft needs to be removed, and the replacement of the unwinding wheel is completed. And then the transverse plate is pushed to rotate on the transverse rod through the cross beam, the transverse plate can drive the unwinding wheels at the two ends of the transverse plate to conduct transposition switching, the situation that the unwinding wheels of the protective film need to be replaced after long-time shutdown is avoided, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective film unwinding, in particular to a protective film unwinding mechanism. Background Technique

[0002] In the process of aluminum-plastic board composite production, since it is necessary to ensure the board surface, it is necessary to stick a protective film to ensure that the board surface is not damaged during subsequent transportation and processing. The current protective film unwinding equipment is an unwinding wheel with bearings, and the unwinding is carried out by the reverse rotation of the unwinding wheel.

[0003] In the current unwinding mechanism, only a single protective film reel is provided. When the protective film on the reel is released and needs to be replaced, the entire film sticking equipment needs to pause, and it can only be restarted after the reel on the unwinding mechanism is replaced, which is very time-consuming and affects work efficiency.

[0004] In view of the above problems, there is an urgent need to innovate and design on the basis of the unwinding mechanism. Content of the Utility Model

[0005] The purpose of the utility model is to provide a protective film unwinding mechanism to solve the technical problems put forward in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A protective film unwinding mechanism, including a bottom plate, a column is fixed on the bottom plate, a cross bar is fixed on the edge of the column, a cross beam is arranged on the cross bar, a cross plate is installed on the surface of the cross beam, placing grooves are opened at both ends of the cross plate, a horizontal shaft is arranged inside the placing groove, an installation bearing is arranged between the horizontal shaft and the cross plate, a fastening bolt is installed on the outside of the installation bearing, a release wheel is fixedly penetrated through the outside of the horizontal shaft, docking holes are opened at both ends of the horizontal shaft, a servo motor and a supporting ring are respectively installed on the surface of the column, an output shaft and a plug rod are respectively installed on the servo motor and the supporting ring, a guiding groove is opened on the inner wall of the supporting ring, a supporting rod is fixed on the surface of the plug rod, the supporting rod is located in the guiding groove, a return spring is installed on the surface of the supporting rod, the return spring is located in the guiding groove, an installation groove is opened on the output shaft, and an extension rod is arranged inside the installation groove.

[0007] Preferably, the cross beam is fixedly connected with the cross plate, and the cross beam is rotatably connected with the two cross bars.

[0008] Preferably, the horizontal shaft is rotatably connected with the cross plate through the installation bearing.

[0009] Preferably, the fastening bolt is threadedly connected through the cross plate, and one end of the fastening bolt abuts against the outer ring surface of the installation bearing.

[0010] Preferably, the docking holes respectively match the insertion rod and the extension rod, and both the insertion rod and the extension rod are of rectangular parallelepiped structure.

[0011] Preferably, the support rod is slidably connected with the supporting ring through the guiding groove, and the supporting ring is rotatably connected with the column through a bearing.

[0012] Preferably, a support spring is arranged at one end of the extension rod located in the installation groove, and the extension rod and the installation groove form a telescopic structure through the support spring.

[0013] Preferably, a grip is fixed on the surface of the extension rod, and the grip is in a through-type sliding connection with the output shaft.

[0014] Compared with the prior art, the beneficial effect of the present utility model is that for this protective film unwinding mechanism, unwinding wheels can be installed at both ends of the cross plate. Thus, when the unwinding wheel at one end of the cross plate releases the protective film, the other end can still install the unwinding wheel. And when it is necessary to replace the unwinding wheel that has completed the unwinding of the protective film, only the connection between the insertion rod and the extension rod and the cross shaft needs to be released, and then the cross plate is pushed to rotate on the cross bar through the cross beam. The cross plate can drive the unwinding wheels at both of its ends to perform position switching, avoiding the need to shut down for a long time to replace the unwinding wheel of the protective film and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the overall top view structural schematic diagram of the present utility model;

[0016] Figure 2 is the front view structural schematic diagram of the cross plate of the present utility model;

[0017] Figure 3 is the top cross-sectional installation structural schematic diagram of the insertion rod of the present utility model;

[0018] Figure 4 is the cross-sectional installation structural schematic diagram of the extension rod of the present utility model;

[0019] Figure 5 is the top cross-sectional structural schematic diagram of the cross shaft of the present utility model.

[0020] In the figure: 1, bottom plate; 2, column; 3, cross bar; 4, cross beam; 5, cross plate; 6, placement groove; 7, cross shaft; 8, mounting bearing; 9, fastening bolt; 10, unwinding wheel; 11, docking hole; 12, servo motor; 13, supporting ring; 14, output shaft; 15, insertion rod; 16, guiding groove; 17, support rod; 18, return spring; 19, installation groove; 20, extension rod; 21, support spring; 22, grip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1 - 5 , the present invention provides a technical solution: a protective film unwinding mechanism, including a bottom plate 1, a column 2 is fixed on the bottom plate 1, a cross bar 3 is fixed on the edge of the column 2, a cross beam 4 is arranged on the cross bar 3, a cross plate 5 is installed on the surface of the cross beam 4, placing grooves 6 are opened at both ends of the cross plate 5, a horizontal shaft 7 is arranged inside the placing groove 6, an installation bearing 8 is arranged between the horizontal shaft 7 and the cross plate 5, a fastening bolt 9 is installed outside the installation bearing 8, a winding wheel 10 is fixedly penetrated through the outside of the horizontal shaft 7, docking holes 11 are opened at both ends of the horizontal shaft 7, a servo motor 12 and a supporting ring 13 are respectively installed on the surface of the column 2, output shafts 14 and insertion rods 15 are respectively installed on the servo motor 12 and the supporting ring 13, a guiding groove 16 is opened on the inner wall of the supporting ring 13, a support rod 17 is fixed on the surface of the insertion rod 15, the support rod 17 is located in the guiding groove 16, a return spring 18 is installed on the surface of the support rod 17, the return spring 18 is located in the guiding groove 16, an installation groove 19 is opened on the output shaft 14, and an extension rod 20 is arranged inside the installation groove 19.

[0023] The cross beam 4 is fixedly connected to the cross plate 5, and the cross beam 4 is rotatably connected to the two cross bars 3, which facilitates the cross plate 5 to rotate and adjust the angle between the two cross bars 3 through the arrangement of the cross beam 4.

[0024] The horizontal shaft 7 is rotatably connected to the cross plate 5 through the installation bearing 8, which facilitates the horizontal shaft 7 to rotate on the cross plate 5 through the installation bearing 8.

[0025] The fastening bolt 9 is threadedly connected to the cross plate 5 in a penetrating manner, and one end of the fastening bolt 9 abuts against the outer surface of the installation bearing 8. Turn the fastening bolt 9 to pass through the cross plate 5 and abut against the installation bearing 8.

[0026] The docking holes 11 respectively coincide with the insertion rod 15 and the extension rod 20. Both the insertion rod 15 and the extension rod 20 are in a cuboid structure, which facilitates the insertion rod 15 and the extension rod 20 to be inserted into the docking holes 11 to keep connected with the horizontal shaft 7.

[0027] The support rod 17 is slidably connected to the support ring 13 through the guiding groove 16, and the support ring 13 is rotatably connected to the column 2 through a bearing, which is beneficial for the support rod 17 to slide and displace in the support ring 13, while the support ring 13 can rotate on the column 2 through the bearing.

[0028] One end of the extension rod 20 located in the installation groove 19 is provided with a support spring 21. The extension rod 20 and the installation groove 19 form a telescopic structure through the support spring 21, which facilitates the support spring 21 to push the extension rod 20 to perform telescopic adjustment in the installation groove 19, and is beneficial for the extension rod 20 to insert into or withdraw from the docking hole 11.

[0029] A grip 22 is fixed on the surface of the extension rod 20. The grip 22 is in a through-type sliding connection with the output shaft 14, which facilitates holding the grip 22 by hand to drive the extension rod 20 to perform telescopic adjustment movement on the output shaft 14.

[0030] Working principle: When it is necessary to replace and switch the unwinding wheel 10 that has completed unwinding, only need to manually pull the insertion rod 15 towards the end away from the horizontal shaft 7 until the insertion rod 15 is disconnected from the docking hole 11 on the horizontal shaft 7, and then push the grip 22 towards the end away from the horizontal shaft 7. At this time, the grip 22 drives the extension rod 20 to withdraw from the docking hole 11 on the horizontal shaft 7. Then manually push the cross plate 5 to rotate on the cross bar 3 through the cross beam 4 until the other end of the cross plate 5 drives the new unwinding wheel 10 to rotate between the two columns 2 through the horizontal shaft 7. Then release the pulled insertion rod 15 and the pushed grip 22. At this time, the return spring 18 pushes the support rod 17 to slide in the guiding groove 16, and the support rod 17 drives the insertion rod 15 to insert into the docking hole 11 on the new horizontal shaft 7. At the same time, the support spring 21 pushes the extension rod 20 to extend out of the installation groove 19 until the extension rod 20 also inserts into the docking hole 11 on the new horizontal shaft 7. At this time, turn on the servo motor 12, and the new unwinding wheel 10 can be driven by the servo motor 12, the output shaft 14, the extension rod 20 and the horizontal shaft 7 to unwind the protective film. The horizontal shafts 7 on both sides of the unwinding wheel 10 rotate on the cross plate 5 through the installation bearings 8;

[0031] When it is necessary to replace the empty unwinding wheel 10 between the two cross bars 3, only need to loosen the fastening bolt 9, and then take out the empty unwinding wheel 10 together with the horizontal shaft 7 and the installation bearing 8 from the placement groove 6, replace it with the unwinding wheel 10 wound with the protective film, place the horizontal shafts 7 and the installation bearings 8 on both sides of the unwinding wheel 10 wound with the protective film back into the placement groove 6 again, and tighten the fastening bolt 9 to tightly hold the surface of the installation bearing 8, then the replacement of the unwinding wheel 10 is completed.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A protective film unwinding mechanism, characterized in that: It includes a bottom plate (1), on which a vertical column (2) is fixed. A cross bar (3) is fixed to the edge of the vertical column (2). A cross beam (4) is arranged on the cross bar (3). A cross plate (5) is installed on the surface of the cross beam (4). Placement grooves (6) are opened at both ends of the cross plate (5). A horizontal shaft (7) is arranged inside the placement grooves (6). An installation bearing (8) is arranged between the horizontal shaft (7) and the cross plate (5). A fastening bolt (9) is installed on the outer side of the installation bearing (8). A unwinding wheel (10) is fixedly penetrated through the outer side of the horizontal shaft (7). Docking holes (11) are opened at both ends of the horizontal shaft (7). A servo motor (12) and a supporting ring (13) are respectively installed on the surface of the vertical column (2). An output shaft (14) and a plug rod (15) are respectively installed on the servo motor (12) and the supporting ring (13). A guiding groove (16) is opened on the inner wall of the supporting ring (13). A supporting rod (17) is fixed to the surface of the plug rod (15). The supporting rod (17) is located inside the guiding groove (16). A return spring (18) is installed on the surface of the supporting rod (17). The return spring (18) is located inside the guiding groove (16). An installation groove (19) is opened on the output shaft (14). An extension rod (20) is arranged inside the installation groove (19).

2. The unwind mechanism for a protective film according to claim 1, characterized in that: The cross beam (4) is fixedly connected to the cross plate (5), and the cross beam (4) is rotatably connected to the two cross bars (3).

3. The unwind mechanism for a protective film according to claim 1, wherein: The horizontal shaft (7) is rotatably connected to the cross plate (5) through the installation bearing (8).

4. A protective film unwinding mechanism according to claim 1, characterized in that: The fastening bolt (9) is threadedly connected to the cross plate (5) in a penetrating manner, and one end of the fastening bolt (9) abuts against the outer surface of the outer ring of the installation bearing (8).

5. The unwind mechanism of a protective film according to claim 1, characterized in that: The docking holes (11) respectively coincide with the plug rod (15) and the extension rod (20), and both the plug rod (15) and the extension rod (20) are of a cuboid structure.

6. The unwind mechanism of a protective film according to claim 1, characterized in that: The supporting rod (17) is slidably connected to the supporting ring (13) through the guiding groove (16), and the supporting ring (13) is rotatably connected to the vertical column (2) through a bearing.

7. The unwind mechanism of a protective film according to claim 1, characterized in that: One end of the extension rod (20) located inside the installation groove (19) is provided with a supporting spring (21), and the extension rod (20) and the installation groove (19) form a telescopic structure through the supporting spring (21).

8. A film unwinding mechanism according to claim 1, characterized in that: A handle (22) is fixed to the surface of the extension rod (20), and the handle (22) is slidably connected to the output shaft (14) in a penetrating manner.

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