Stripping and winding mechanism for laser transfer film

Abstract

The utility model provides a laser transfer film stripping and rolling mechanism, it includes frame, stripping roller, mounting pole and a plurality of limit piece, the stripping roller is located and installed on the frame and can rotate around the axle, the mounting pole is fixedly connected with the frame, the both ends of limit piece respectively form movable connection portion and rolling limit portion, and the limit piece is fixed on the frame. The movable connecting part is in positioning connection with the mounting rod and can rotate around the mounting rod, the winding limiting part comprises two limiting side plates arranged in parallel at an interval and a top plate connected with the upper ends of the two limiting side plates, a containing cavity is formed between the two limiting side plates, and the lower ends of the limiting side plates can be in lap joint above the stripping roller. According to the utility model, the plurality of limiting pieces are arranged, each laser transfer film strip on the wide base material corresponds to one limiting piece in the process of stripping and rolling the laser transfer film, and the limiting pieces prevent the laser transfer film strips from shifting through the two limiting side plates, so that the size consistency of the reel is ensured, and the laser transfer film is prevented from being broken.

Description

Technical Field

[0001] The utility model relates to the technical field of laser printing, and particularly relates to a laser transfer film peeling and winding mechanism. Background Art

[0002] A laser transfer film is a printing technology that transfers patterns through a photo-decomposition process. It uses a special laser transfer machine to project patterns onto the surface of the transfer material in the form of laser beams, and transfers the patterns onto the surface of the required material through a specific pressure and temperature environment.

[0003] In industrial production, multiple laser transfer films are often parallelly attached to a wide substrate, and multiple prints are carried out simultaneously. After printing, the laser transfer films are peeled off, and then the wide substrate is cut into multiple narrow-band substrates according to the printing situation, that is, several printed products can be obtained at one time, improving the printing efficiency, such as the printing of cigarette inner lining paper. In the prior art, a peeling roller is usually used to peel and wind the printed laser transfer film. For example, the patent document with the application number CN202320242879.5 discloses a film peeling device for laser-coated iron, which includes a torque motor and a winding roller. After uncovering the laser transfer film, it is fastened to the reel of the winding roller, and the winding roller is actively wound by controlling the torque motor, that is, the peeling and winding of the printed laser transfer film are realized. Although the above technical solution can complete the peeling and winding of the laser transfer film, when the peeling roller synchronously winds multiple laser transfer films on a wide substrate, due to inevitable vibrations and equipment accuracy, etc., it is impossible to ensure that each laser transfer film does not shift in position during the winding process. With the appearance of the position shift, there will be a size difference between the obtained reels, and then the tensions received by different laser transfer films will be different. In severe cases, some laser transfer films will break, affecting production. Summary of the Invention

[0004] In order to solve the above problems, the utility model provides a laser transfer film peeling and winding mechanism, which can reduce the offset of the laser transfer film, avoid the problem of breakage of the laser transfer film due to tension difference, and improve the production stability when synchronously peeling and winding multiple laser transfer films.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A laser transfer film peeling and winding mechanism includes a frame, a peeling roller, a mounting rod, and a number of limiting members. The peeling roller is positioned and installed on the frame and can rotate around its axis. The mounting rod is fixedly connected to the frame. The two ends of the limiting member respectively form a movable connection portion and a winding limiting portion. The movable connection portion is positioned and connected to the mounting rod and can rotate around the mounting rod. The winding limiting portion includes two limiting side plates arranged in parallel at intervals and a top plate connected to the upper ends of the two limiting side plates. An accommodation cavity is formed between the two limiting side plates. The lower ends of the limiting side plates can be lapped above the peeling roller.

[0007] During the process of peeling and winding the laser transfer film in the present utility model, each laser transfer film strip on the wide-width substrate corresponds to a limiting member. The limiting member uses two limiting side plates to prevent the laser transfer film strip from shifting during the winding process on the peeling roller, ensuring the dimensional consistency of different reels, preventing the laser transfer film from breaking due to tension differences. And as the winding continues, the diameter of the reel gradually increases. The reel pushes up the limiting member through the top plate, and the movable connection portion of the limiting member rotates around the mounting rod, so that the limiting member always cooperates with the edge part of the reel being wound. The limiting member can achieve a good limiting effect through the limiting plate with a small contact area, avoiding a large amount of heat generated by the friction between the limiting plate and the side of the reel, and also avoiding wear on the edge of the laser transfer film strip caused by friction.

[0008] Further, a number of positioning members are provided on the mounting rod, which can abut against the side of the movable connection portion and limit the axial movement of the movable connection portion along the mounting rod.

[0009] Further, the positioning member is detachably connected to the mounting rod.

[0010] Further, the limiting member further includes an extension portion connecting the movable connection portion and the winding limiting portion, and the extension portion has an adjustment mechanism for changing its own length.

[0011] Further, the limiting member further includes an outer runner. An outer mounting shaft is vertically connected to the outer side surface of the limiting side plate. The outer runner is movably connected to the outer mounting shaft through a bearing, and a part of the outer runner extends out from the lower end of the limiting side plate.

[0012] Further, the limiting member further includes an inner runner. An inner mounting shaft is vertically connected to the inner side surface of the limiting side plate. The inner runner is movably connected to the inner mounting shaft through a bearing, and the inner runner is arranged near the top plate.

[0013] Further, the frame includes a movable bearing plate. The movable bearing plate is provided with a first bearing portion cooperating with the end of the peeling roller. The first bearing portion has an upward opening. The movable bearing plate is connected with a lifting device; one end of the peeling roller is detachably connected to the first bearing portion.

[0014] Furthermore, the lifting device includes a lifting motor, a rotatable lead screw driven by the lifting motor, and a connecting block movably engaged with the lead screw. The connecting block is fixedly connected to the movable receiving plate.

[0015] Furthermore, the movable receiving plate is further provided with a second receiving portion that cooperates with the end of the mounting rod. The second receiving portion has an upward opening; one end of the mounting rod is detachably connected to the second receiving portion.

[0016] In summary, the following beneficial effects can be achieved by applying the present utility model:

[0017] 1. The present utility model is provided with a plurality of limiting members. During the process of peeling and winding the laser transfer film, each laser transfer film strip on the wide-width substrate corresponds to a limiting member. The limiting member prevents the laser transfer film strip from shifting during the winding process on the peeling roller through two limiting side plates, ensuring the dimensional consistency of different reels and preventing the laser transfer film from breaking due to tension differences.

[0018] 2. During the use of the present utility model, as the winding progresses, the diameter of the reel gradually increases. The reel pushes the limiting member upward through the top plate, and the movable connection portion of the limiting member rotates around the mounting rod, so that the limiting member always cooperates with the edge part of the reel being wound. The limiting member can achieve a good limiting effect through the limiting plate with a small contact area, avoiding a large amount of heat generated by the friction between the limiting plate and the side surface of the reel, and also avoiding wear on the edge of the laser transfer film strip caused by friction.

[0019] 3. In some embodiments of the present utility model, the limiting member is provided with an inner runner and an outer runner. When the limiting member is lapped on the peeling roller, the outer runner rotates in cooperation with the peeling roller, avoiding direct friction between the peeling roller and the lower end of the limiting side plate. When the reel pushes the limiting member upward, the inner runner rotates in cooperation with the reel, avoiding direct friction between the reel and the inner side of the top plate.

[0020] 4. In some embodiments of the present utility model, the frame includes a movable receiving plate that can be lifted, and the edges of the peeling roller and the mounting rod can be separated from the movable receiving plate, so as to remove the reel on the peeling roller or the limiting member on the mounting rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of the laser transfer film peeling and winding mechanism in the embodiment;

[0022] Figure 2 It is a schematic structural diagram of the positioning member in another embodiment;

[0023] Figure 3 It is a schematic structural diagram of the limiting member in another embodiment;

[0024] In the figure, 1 is a frame, 11 is a movable receiving plate, 111 is a first receiving portion, 112 is a second receiving portion, 12 is a fixed mounting plate, 13 is a driving mechanism, 14 is a lifting mechanism, 141 is a lifting motor, 142 is a lead screw, 143 is a connecting block, 2 is a peeling roller, 3 is a mounting rod, 31 is a positioning member, 4 is a limiting member, 41 is a movable connecting portion, 42 is a winding limiting portion, 421 is a limiting side plate, 422 is a top plate, 423 is an outer runner, 424 is an inner runner, 43 is an extending portion, 431 is a first extension plate, and 432 is a second extension plate. Detailed implementation mode

[0025] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0026] Refer to Figure 1 As shown in the figure, an embodiment of the first aspect of the present utility model provides a laser transfer film peeling and winding mechanism, which includes a frame 1, a peeling roller 2, a mounting rod 3, and several limiting members 4; the peeling roller 2 and the mounting rod 3 are parallel to each other, the end of the peeling roller is movably connected to the frame so that the peeling roller can rotate around the axis, and the end of the mounting rod is fixedly connected to the frame; the mounting rod includes several positioning members 31 arranged along the axial direction; both ends of the limiting member 4 respectively form a movable connecting portion 41 and a winding limiting portion 42, and the movable connecting portion and the winding limiting portion are connected by an extending portion 43 in a transitional manner. The movable connecting portion 41 is movably sleeved on the outer periphery of the mounting rod and can rotate around the mounting rod. The positioning member 31 abuts against both sides of the movable connecting portion so that the movable connecting portion cannot slide along the axial direction of the mounting rod. The winding limiting portion 42 includes two limiting side plates 421 that are parallel to each other and have a gap. The upper ends of the two limiting side plates are connected by a top plate 422. The limiting side plates are perpendicularly arranged relative to the peeling roller. The distance between the movable connecting portion and the winding limiting portion is approximately equal to the distance between the peeling roller and the mounting rod. When the limiting member 4 rotates around the mounting rod, the peeling roller is exactly on the moving path of the winding limiting portion, and the lower end of the limiting side plate can be lapped on the peeling roller.

[0027] The working principle of the present utility model is as follows: The stripping roller simultaneously winds multiple laser transfer film strips on a wide substrate, forming multiple reels at different positions in the axial direction of the stripping roller. Each reel formation site corresponds to a limiting member. The distance between the two limiting side plates of the limiting member is slightly larger than the width of the reel, so that the edge part of the reel is embedded between the two limiting side plates. Under the limitation of the limiting side plates, the offset amplitude of the laser transfer film strip is limited, which can ensure the regularity of the reel. As the diameter of the reel gradually increases, the reel contacts the top plate and pushes up the limiting member. The winding limiting part of the limiting member will always maintain a state of cooperating with the edge of the reel to ensure that the newly wound laser transfer film strip is restricted.

[0028] In a further embodiment, the frame includes a movable bearing plate 11 and a fixed mounting plate 12 that are parallel to each other. The movable bearing plate has a first bearing part 111 and a second bearing part 112. Both the first bearing part and the second bearing part form upward openings. A driving mechanism 13 is provided on the outer side of the fixed mounting plate. The driving mechanism is used to drive the stripping roller to rotate actively. A lifting mechanism 14 is provided on the outer side of the movable bearing plate. The lifting mechanism includes a lifting motor 141, a lead screw 142 driven by the lifting motor, and a connecting block 143 that is movably matched with the lead screw. The connecting block is fixedly connected to the outer side surface of the movable bearing plate. Under the control of the lifting motor, the connecting block can drive the movable bearing plate to move along the axial direction of the lead screw. The first end of the stripping roller 2 passes through the fixed mounting plate and is connected to the driving mechanism 13, and the second end is matched with the first bearing part 111. When the movable bearing plate descends with the connecting block, the second end of the stripping roller separates from the first bearing part, so that the completed reel can be removed. The first end of the mounting rod is fixedly connected to the fixed mounting plate, and the second end is matched with the second bearing part 112. When the movable bearing plate descends with the connecting block, the second end of the mounting rod separates from the second bearing part, so that the limiting member can be removed from the mounting rod. In order to enable the limiting member to be removed, the positioning member 31 should be able to release the restriction on the movable connecting part 41. In the first embodiment, the positioning member is set as a movable block that can be retracted into the mounting rod or ejected from the mounting rod. By controlling the position state of the positioning member, the restriction can be applied or released. In the second method, the positioning member is set as a circular elastic snap frame with a notch that can be detached from the outside of the mounting rod. The elastic snap frame can be snapped onto the mounting rod or removed from the mounting rod through the notch, thereby applying or releasing the restriction.

[0029] In some other embodiments, the extension part 43 can change its own length to adapt to different working requirements. Referring to Figure 2 , the extension part 43 is composed of a first extension plate 431 and a second extension plate 432. The first extension plate and the second extension plate are slidably connected and are provided with locking components.

[0030] In some other embodiments, referring to Figure 3 , the limiting member 4 further includes an outer runner 423 and an inner runner 424. An outer mounting shaft is vertically connected to the outer side surface of the limiting side plate 421. The outer runner is movably connected to the outer mounting shaft through a bearing. An inner mounting shaft is vertically connected to the inner side surface of the limiting side plate. The inner runner is movably connected to the inner mounting shaft through a bearing. A part of the edge of the outer runner extends out from the lower end of the limiting side plate. The inner runner is located between the two limiting side plates and is close to the top plate. When the limiting member is lapped on the peeling roller, the outer runner rotates in cooperation with the peeling roller, avoiding direct friction between the peeling roller and the lower end of the limiting side plate. When the reel jacks up the limiting member, the inner runner rotates in cooperation with the reel, avoiding direct friction between the reel and the inner side of the top plate.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. 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 described 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 laser transfer film peeling and winding mechanism, characterized in that: It includes a frame, a stripping roller, a mounting rod and a number of limiting members. The stripping roller is positioned and installed on the frame and can rotate around an axis. The mounting rod is fixedly connected to the frame. The two ends of the limiting member respectively form a movable connection portion and a winding limiting portion. The movable connection portion is positioned and connected to the mounting rod and can rotate around the mounting rod. The winding limiting portion includes two limiting side plates arranged in parallel at intervals and a top plate connected to the upper ends of the two limiting side plates. A receiving cavity is formed between the two limiting side plates. The lower end of the limiting side plate can be lapped above the stripping roller.

2. A laser transfer film peeling and winding mechanism according to claim 1, characterized in that: A number of positioning members are provided on the mounting rod, which can abut against the side of the movable connection portion and limit the axial movement of the movable connection portion along the mounting rod.

3. A laser transfer film peeling and winding mechanism according to claim 2, characterized in that: The positioning member is detachably connected to the mounting rod.

4. A laser transfer film peeling and winding mechanism according to claim 1, characterized in that: The limiting member further includes an extension portion that transitions and connects the movable connection portion and the winding limiting portion. The extension portion has an adjustment mechanism that can change its own length.

5. A laser transfer film peeling and winding mechanism according to claim 1, characterized in that: The limiting member further includes an outer rotating wheel. An outer mounting shaft is vertically connected to the outer side surface of the limiting side plate. The outer rotating wheel is movably connected to the outer mounting shaft through a bearing. A part of the outer rotating wheel extends out from the lower end of the limiting side plate.

6. The stripping and winding mechanism of a laser transfer film according to claim 1, characterized in that: The limiting member further includes an inner rotating wheel. An inner mounting shaft is vertically connected to the inner side surface of the limiting side plate. The inner rotating wheel is movably connected to the inner mounting shaft through a bearing. The inner rotating wheel is arranged at a position close to the top plate.

7. A laser transfer film peeling and winding mechanism according to claim 1, characterized in that: The frame includes a movable bearing plate. The movable bearing plate is provided with a first bearing portion that cooperates with the end of the stripping roller. The first bearing portion has an upward opening. The movable bearing plate is connected with a lifting device. One end of the stripping roller is detachably connected to the first bearing portion.

8. A laser transfer film peeling and winding mechanism according to claim 7, characterized in that: The lifting device includes a lifting motor, a rotatable lead screw driven by the lifting motor, and a connecting block that is movably matched with the lead screw. The connecting block is fixedly connected to the movable bearing plate.

9. A laser transfer film peeling and winding mechanism according to claim 7, characterized in that: The movable bearing plate is further provided with a second bearing portion that cooperates with the end of the mounting rod. The second bearing portion has an upward opening. One end of the mounting rod is detachably connected to the second bearing portion.

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