Laser film surface coating device

Abstract

The laser film surface coating device comprises a base and a scraping assembly, the scraping assembly comprises a supporting frame, a shaft rod, a scraping plate and a gear sleeve, the supporting frame is arranged on the base, a sliding hole is formed in the supporting frame, one end of the shaft rod is connected with the base in a rotating mode, and the other end of the shaft rod slides in the sliding hole in an adjustable mode. The shaft rod is sleeved with the scraping plate, the shaft rod drives the scraping plate to swing so that the angle between the scraping plate and the base material can be adjusted, the gear sleeve is arranged on the shaft rod in a sliding mode, and the gear sleeve is meshed with the scraping plate so that the rotating direction of the scraping plate relative to the shaft rod can be adjusted. In this way, the coating can be evenly smeared on the base material, so that the coating effect of the laser film is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of film material processing, in particular to a laser film surface coating device. BACKGROUND

[0002] In today's packaging printing, decorative materials and anti-counterfeiting and many other fields, laser film has been widely used due to its unique optical effects, such as brilliant colors, dazzling luster and rich texture changes. It can greatly enhance the appearance attractiveness of products and give higher added value to commodities. The coating process is one of the important links in the production of laser film, and accurate and uniform coating can ensure that the laser film exhibits highly consistent gloss and color saturation in different areas. For example, the Chinese patent document with publication number CN116351657B discloses a laser transfer film coating device, which includes a base material transmission assembly for conveying the base material, a coating supply assembly for delivering coating to the base material, and a scraper inclined to the conveying surface of the base material for uniformly distributing the coating on the base material. The scraper includes a fixed seat, a compaction layer plate and a distribution layer plate stacked on the fixed seat. The fixed seat is fixed above the base material by a support roller. The distribution layer plate forms a convex distribution camber at the middle position along the conveying direction of the base material. The compaction layer plate has a circular arc surface at one end facing the base material. The distance between the compaction belt of the circular arc surface and the base material is smaller than the distance between the cleaning belt of the distribution camber and the base material. The cleaning belt is parallel to the conveying surface of the base material, and the circular arc surface extends to the inner edge of the cleaning belt to form a compaction buffer zone for the coating between the cleaning belt and the compaction belt. In this way, the adhesion between the coating and the base material is ensured.

[0003] However, the existing laser transfer film coating device has the following disadvantages in actual use: when the excess coating is pushed to both sides of the base material along the distribution camber of the scraper, the consistency of each type of coating is different, resulting in different flowability. For example, if the consistency of the coating is too thick, the excess coating will accumulate on the distribution camber of the scraper for too long, affecting the uniform distribution of the coating and resulting in poor laser film coating effect. Therefore, the laser film surface coating device is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects in the prior art and providing a laser film surface coating device capable of adjusting the angle of the scraper according to the consistency of the coating to ensure uniform coating of the coating on the base material.

[0005] The utility model aims at overcoming the defects in the prior art and providing a laser film surface coating device capable of adjusting the angle of the scraper according to the consistency of the coating to ensure uniform coating of the coating on the base material.

[0006] A laser film surface coating device comprises:

[0007] a base, and

[0008] The scraping assembly comprises a support frame, a shaft, a scraper and a tooth sleeve. The support frame is arranged on the base, a sliding hole is formed in the support frame, one end of the shaft is rotatably connected with the base, the other end of the shaft is adjustably slid in the sliding hole, the scraper is sleeved on the shaft, the shaft drives the scraper to swing, so that the angle between the scraper and the base material is adjustable, and the tooth sleeve is slidably arranged on the shaft and engaged with the scraper, so that the rotating direction of the scraper relative to the shaft is adjustable.

[0009] Optionally, a through hole is further formed in the support frame and penetrates the sliding hole.

[0010] Optionally, an axle hole is formed in the shaft and communicates with the through hole.

[0011] Optionally, the scraping assembly further comprises a locking piece, the locking piece passes through the through hole and the axle hole in sequence.

[0012] Optionally, a sliding groove is formed in the shaft, a clamping table is arranged on the tooth sleeve, and the clamping table is clamped with the sliding groove.

[0013] Optionally, a tooth block is arranged on the scraper, the tooth block is located at one end of the scraper along the axial direction of the shaft, and the tooth sleeve is engaged with the tooth block.

[0014] Optionally, a lock hole is formed in the tooth sleeve and is formed along the radial direction of the tooth sleeve.

[0015] Optionally, the scraping assembly further comprises a glue collecting box, the glue collecting box is arranged on the base, and the glue collecting box is located below the scraper.

[0016] Optionally, the laser film surface coating device further comprises a glue coating box, the glue coating box is arranged on the base, and the glue coating box is located above the base material.

[0017] Optionally, the laser film surface coating device further comprises a glue conveying driving piece, the glue conveying driving piece is arranged on the base, an input end of the glue conveying driving piece communicates with the glue collecting box, and an output end of the glue conveying driving piece communicates with the glue coating box.

[0018] Compared with the prior art, the laser film surface coating device has at least the following advantages:

[0019] The laser film surface coating device can adjust the one end of the shaft in the sliding hole according to the consistency of the coating, adjust the included angle between the scraper and the base material, make the excess coating accumulated on the scraper uniformly coated on the base material, and improve the coating effect of the laser film. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0021] Figure 1 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0022] Figure 2 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure. Figure 1 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0023] Figure 3 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0024] Figure 4 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0025] Figure 5 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0026] Figure 6 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0027] Figure 7 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0028] Figure 8 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0029] Figure 9 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0030] Figure 10 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0031] Figure 11 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure. Figure 10 The structure diagram of the laser film surface coating device of an embodiment of the present application is shown in the figure.

[0032] Explanation of reference signs:

[0033] 1. Laser film surface coating device; 10. Base; 11. Column; 20. Scraper assembly; 21. Support frame; 211. Slide hole; 212. Perforation; 22. Shaft; 221. Shaft hole; 222. Slide groove; 23. Scraper plate; 231. Tooth block; 24. Tooth sleeve; 241. Lock hole; 25. Locking piece; 26. Glue collecting tank; 27. Glue coating tank; 271. Tank body; 272. Inclined plate; 273. Baffle; 274. Glue storage chamber; 275. Glue outlet channel; 276. Glue inlet chamber; 30. Glue conveying driving piece; 2711. Flow guide surface; 2712. Flow guide groove. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the related drawings. The preferred embodiments of the present application are shown in the drawings.

[0035] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0037] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0038] As Figure 1 , Figure 3As shown, in one embodiment, a laser film surface coating device 1 comprises a base 10 and a scraping assembly 20, the scraping assembly 20 comprises a support frame 21, a shaft 22, a scraping plate 23 and a gear sleeve 24, the support frame 21 is arranged on the base 10, the support frame 21 is provided with a sliding hole 211, one end of the shaft 22 is rotatably connected with the base 10, the other end of the shaft 22 is adjustably slid in the sliding hole 211, the scraping plate 23 is sleeved on the shaft 22, the shaft 22 drives the scraping plate 23 to swing, so that the angle between the scraping plate 23 and the substrate is adjustable, the gear sleeve 24 is slidably arranged on the shaft 22, the gear sleeve 24 is used for engaging with the scraping plate 23, so that the rotating direction of the scraping plate 23 relative to the shaft 22 is adjustable.

[0039] It should be noted that the base 10 is provided with a stand 11, the support frame 21 is arranged on the base 10, and the support frame 21 and the stand 11 are located on both sides of the substrate respectively. Further, one end of the shaft 22 is rotatably connected with the stand 11 along the vertical direction of the stand 11, and the position where the shaft 22 is rotatably connected with the stand 11 is higher than the height of the substrate, so that the shaft 22 can rotate above the substrate. Further, the support frame 21 is provided with a sliding hole 211, the sliding hole 211 extends from one side of the support frame 21 to the other side, and the two ends of the sliding hole 211 extend from one end of the support frame 21 to the other end along the moving direction of the substrate, so that the sliding hole 211 is a long hole structure. Further, the end of the shaft 22 away from the stand 11 extends into the sliding hole 211, and when the end close to the sliding hole 211, the shaft center direction of the shaft 22 is perpendicular to the moving direction of the substrate, when the end of the shaft 22 away from the stand 11 moves from one end of the sliding hole 211 to the other end of the sliding hole 211, the included angle between the shaft center direction of the shaft 22 and the moving direction of the substrate changes. Further, the scraping plate 23 is sleeved on the shaft 22, so that when the included angle between the shaft 22 and the substrate changes, the included angle between the scraping plate 23 and the substrate also changes. Further, when the end of the shaft 22 away from the stand 11 is slid from one end of the sliding hole 211 to the other end of the sliding hole 211, the included angle between the shaft center direction of the shaft 22 and the moving direction of the substrate becomes smaller, and the slope between the moving direction of the coating and the scraping plate 23 relative to the coating on the substrate will be larger, so that the excess coating with high consistency on the substrate can flow from one end of the substrate to the other end more quickly, reducing the residence time of the excess coating on the scraping plate 23, and thus making the coating more uniform on the substrate. Conversely, the larger the included angle between the shaft center direction of the shaft 22 and the moving direction of the substrate, the slower the excess coating with low consistency flows on the scraping plate 23 to the two sides of the substrate, so as to increase the residence time of the coating on the substrate, and avoid uneven coating caused by the coating with low consistency flowing too fast.

[0040] As shown in the drawings, Figures 1 to 3 ,Figure 6 As shown in FIG. 1, in one embodiment, the support frame 21 is further provided with a through hole 212, which penetrates the sliding hole 211.

[0041] It should be noted that the sliding hole 211 is provided on the side of the support frame 21 facing the column 11, and the through hole 212 is provided on the side of the support frame 21 adjacent to the sliding hole 211, and the through hole 212 penetrates both sides of the sliding hole 211, so that the through hole 212 can communicate with the sliding hole 211. Further, the length of the sliding hole 211 and the through hole 212 is consistent, and the cross section of the sliding hole 211 and the through hole 212 is in the shape of a cross.

[0042] As shown in FIG. 1, Figures 1 to 3 Figure 6 In one embodiment, the shaft 22 is provided with a shaft hole 221, which communicates with the through hole 212.

[0043] It should be noted that one end of the shaft 22 rotates about the vertical direction of the column 11, and the other end of the shaft 22 is provided with a shaft hole 221, and the shaft hole 221 is also provided in the vertical direction of the column 11. Further, the shaft hole 221 is also a long hole structure, and the shaft hole 221 slides in the sliding hole 211 driven by the shaft 22, so that the shaft hole 221 communicates with the through hole 212.

[0044] As shown in FIG. 1, Figure 1 Figure 3 In one embodiment, the scraping assembly 20 further includes a locking member 25, which sequentially passes through the through hole 212 and the shaft hole 221.

[0045] It should be noted that the locking member 25 includes a screw and a nut, one end of the screw sequentially passes through the through hole 212 and the shaft hole 221, and extends out of the other side of the through hole 212 and is screwed with the nut, so that the position of one end of the shaft 22 can be adjusted relative to the support frame 21.

[0046] As shown in FIG. 1, Figure 4 Figure 7 In one embodiment, the shaft 22 is provided with a sliding groove 222, and the tooth sleeve 24 is provided with a clamping post, which is clamped with the sliding groove 222.

[0047] It should be noted that the shaft 22 is provided with a sliding groove 222 along the direction of the axis, and the sliding groove 222 extends from one end of the shaft 22 to the other end. Further, the tooth sleeve 24 is in the shape of a ring, and the inner side wall of one end of the tooth sleeve 24 is provided with a plurality of teeth, which are equally distributed along the inner side wall to form an inner tooth ring structure, and the inner side wall of the other end of the tooth sleeve 24 away from the teeth is provided with a clamping post, which is clamped with the sliding groove 222, so that the tooth sleeve 24 can slide relative to the shaft 22 along the sliding groove 222.

[0048] ​​​As Figure 1 , Figure 3 , Figure 5 shown, in an embodiment, the scraper 23 is provided with a tooth block 231, the tooth block 231 is located at one end of the scraper 23 along the axial direction of the shaft 22, and the tooth sleeve 24 is engaged with the tooth block 231.

[0049] It should be noted that the length of the shaft 22 is greater than the length of the scraper 23, so that when the scraper 23 is sleeved on the shaft 22, the two ends of the shaft 22 respectively protrude from the two ends of the scraper 23, and the tooth sleeve 24 is slidingly arranged on one end of the shaft 22, so that the tooth sleeve 24 can slide close to or away from the end of the scraper 23. Further, the scraper 23 is provided with a tooth block 231, the tooth block 231 is located at the end of the scraper 23, and the tooth block 231 is also an annular structure, and the outer side of the tooth block 231 is provided with teeth that are matched with the inner teeth ring on the tooth sleeve 24. The end of the tooth sleeve 24 provided with the teeth is directed towards the end of the scraper 23, so that the inner teeth ring structure on the tooth sleeve 24 is engaged with the end of the scraper 23, so that the rotating direction of the scraper 23 relative to the shaft 22 is adjustable.

[0050] As Figure 4 shown, in an embodiment, the tooth sleeve 24 is provided with a lock hole 241, and the lock hole 241 is arranged along the radial direction of the tooth sleeve 24.

[0051] It should be noted that the end of the tooth sleeve 24 away from the teeth is provided with a lock hole 241, and the lock hole 241 is arranged along the radial direction of the tooth sleeve 24, so that the lock hole 241 communicates the outer side and the inner side wall of the tooth sleeve 24. When the tooth sleeve 24 is sleeved on the shaft 22, the tooth sleeve 24 can be inserted into abutment with the shaft 22 through the lock hole 241 by a screw rod, so that the sliding position of the tooth sleeve 24 relative to the shaft 22 is adjustable.

[0052] As Figure 1 , Figure 3 shown, in an embodiment, the material scraping assembly 20 further comprises a glue collecting box 26, the glue collecting box 26 is arranged on the base 10, and the glue collecting box 26 is located below the scraper 23.

[0053] It should be noted that the width of the glue collecting box 26 is greater than the width of the substrate, so that when the scraper 23 pushes the excess coating material from one end of the substrate, the excess coating material can fall into the glue collecting box 26.

[0054] As Figure 1 , Figure 3 , Figures 8 to 11 shown, in an embodiment, the laser film surface coating device 1 further comprises a glue coating box 27, the glue coating box 27 is arranged on the base 10, and the glue coating box 27 is located above the substrate.

[0055] It should be noted that the glue tank 27 is located above the substrate, and the glue tank 27 is provided with a glue outlet on one side facing the substrate, and the length of the glue outlet is greater than the width of the substrate. Further, one end of the glue collecting tank 26 is located below the scraper 23, and the other end of the glue collecting tank 26 is located below the outlet of the glue tank 27. Because the length of the glue outlet is greater than the width of the substrate, the paint can cross the two ends of the substrate, and the paint can be completely applied to the substrate.

[0056] As Figure 1 , Figure 3 , Figures 8 to 11 mentioned, in an embodiment, the glue tank 27 includes a tank body 271, an inclined plate 272 and a baffle 273. The tank body 271 is arranged on the base 10, and the glue outlet is arranged on the tank body 271. The baffle 273 is arranged in the tank body 271, and the baffle 273 divides the tank body 271 into a glue storage chamber 274 and a glue outlet passage 275. The glue outlet passage 275 is in communication with the glue storage chamber 274 and the glue outlet, respectively. Further, the inclined plate 272 is arranged in the tank body 271, and the inclined plate 272 divides the tank body 271 into a glue inlet chamber 276. The glue inlet chamber 276 is in communication with the glue storage chamber 274. The inclined plate 272 is arranged on one side of the tank body 271 close to the baffle 273, and the other end of the inclined plate 272 extends to one end of the glue storage chamber 274 away from the glue outlet passage 275. It should be noted that the distance between the two sides of the end of the inclined plate 272 extending into the glue storage chamber 274 and the inner wall of the tank body 271 is not consistent, and the distance of one end is greater than that of the other end, so that the communication position of the glue inlet chamber 276 and the glue storage chamber 274 is wide on one side and narrow on the other side.

[0057] As Figure 1 , Figure 3 mentioned, in an embodiment, the laser film surface coating device 1 further includes a glue conveying driving member 30. The glue conveying driving member 30 is arranged on the base 10, and the input end of the glue conveying driving member 30 is in communication with the glue collecting tank 26, and the output end of the glue conveying driving member 30 is in communication with the glue tank 27.

[0058] It should be noted that the glue conveying driving member 30 is a screw pump structure. The glue conveying driving member 30 conveys the paint in the glue collecting tank 26 to the glue tank 27. The narrow end of the communication port of the glue inlet chamber 276 and the glue storage chamber 274 is close to the side of the output end of the glue conveying driving member 30, so that when the paint enters the glue storage chamber 274 from the glue inlet chamber 276, the position of the paint flowing into the glue storage chamber 274 is uniform, avoiding the paint being concentrated on one side of the glue storage chamber 274, which causes the glue amount of the end of the glue outlet close to the glue conveying driving member 30 to be greater than that of the end away from the glue conveying driving member 30.

[0059] As Figures 10 to 11As shown, in an embodiment, the box 271 is further provided with a flow guide surface 2711, which is located on the inner side wall of the glue outlet.

[0060] It should be noted that the flow guide surface 2711 is an arc structure, and the flow guide surface 2711 extends from the inner side wall of the glue outlet channel 275 to the end of the glue outlet. When the paint flows out of the discharge port and falls on the substrate, the substrate will move with the paint. Due to the viscosity of the paint, when the substrate moves with the paint, the paint will tend to pull. Therefore, the flow guide surface 2711 can guide the paint to slide out of the glue outlet, avoiding the accumulation of paint in the glue outlet. Further, the box 271 is further provided with a plurality of flow guide grooves 2712, which are equally distributed on one side of the glue outlet flow guide surface 2711, and each flow guide groove 2712 is in communication with the flow guide surface 2711, so that the paint flows out of each flow guide groove 2712 uniformly through the flow guide surface 2711, thereby making the paint uniformly distributed on the substrate. Further, when the substrate is evenly coated with paint, the scraper 23 can more accurately remove the excess paint.

[0061] The above-described embodiments only express several embodiments of the present application, which are described in detail and specifically, but should not be understood as limiting the scope of the application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the scope of the present application. Therefore, the scope of protection of the present application should be subject to the appended claims.

Claims

1. A laser film surface coating apparatus, characterized in that, The laser film surface coating device comprises a base, a scraping assembly, a glue collecting box, a glue coating box and a glue conveying driving element. The scraping assembly comprises a support frame, a shaft, a scraper and a gear sleeve. The support frame is arranged on the base. The support frame is provided with a sliding hole.

2. The laser film surface coating apparatus of claim 1, wherein, One end of the shaft is rotatably connected with the base.

3. The laser film surface coating apparatus of claim 2, wherein, The other end of the shaft is adjustably slid in the sliding hole.

4. The laser film surface coating apparatus of claim 3, wherein, The scraper is sleeved on the shaft.

5. The laser film surface coating apparatus of claim 2, wherein, The shaft drives the scraper to swing, so that the angle of the scraper relative to the base is adjustable.

6. The laser film surface coating apparatus of claim 5, wherein, The gear sleeve is slidably arranged on the shaft.

7. The laser film surface coating apparatus of claim 6, wherein, The gear sleeve is used for engaging with the scraper, so that the rotating direction of the scraper relative to the shaft is adjustable.

8. The laser film surface coating apparatus of claim 7, wherein, The support frame is further provided with a through hole.

9. The laser film surface coating apparatus of claim 8, wherein, The through hole penetrates the sliding hole.

10. The laser film surface coating apparatus of claim 9, wherein, The shaft is provided with a shaft hole. The shaft hole is communicated with the through hole. The scraping assembly further comprises a locking member. The locking member passes through the through hole and the shaft hole in sequence. The shaft is provided with a sliding groove. The gear sleeve is provided with a clamping table. The clamping table is clamped with the sliding groove. The scraper is provided with a tooth block. The tooth block is located at one end of the scraper along the axial direction of the shaft. The gear sleeve engages with the tooth block. The gear sleeve is provided with a lock hole. The lock hole is arranged along the radial direction of the gear sleeve. The scraping assembly further comprises a glue collecting box. The glue collecting box is arranged on the base and below the scraper. The laser film surface coating device further comprises a glue coating box. The glue coating box is arranged on the base and above the substrate. The laser film surface coating device further comprises a glue conveying driving element. The input end of the glue conveying driving element is communicated with the glue collecting box. The output end of the glue conveying driving element is communicated with the glue coating box.

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