Coating device for hot melt adhesive film

Abstract

The utility model relates to the technical field of coating devices, and discloses a coating device for a hot melt adhesive film, which comprises an adhesive outlet box, one side of the adhesive outlet box is provided with a feeding channel which is of a circular structure and penetrates through the surface of the adhesive outlet box, a feeding cylinder is rotatably mounted in the feeding channel, the surface of the feeding cylinder is provided with a plurality of quantitative grooves, and the quantitative grooves are communicated with the feeding channel. And a stirring rod is rotationally installed in each quantitative groove, a groove is formed in one side of the feeding barrel, and an electric heating block is fixedly installed in the groove. According to the utility model, along with the rotation of the feeding cylinder, the plurality of gears can be driven to rotate in a manner of being meshed with the inner gear ring, and the plurality of stirring rods rotate along with the rotation of the plurality of gears, so that a glue solution in a conveying process can be stirred, the glue solution is prevented from being solidified, and the feeding cylinder is properly heated in combination with the motor heating block; and the glue solution always keeps proper flowability in the quantitative groove, so that the coating uniformity of the equipment is improved, and the coating quality is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coating devices, in particular to a coating device for hot melt adhesive film. Background Art

[0002] Hot melt adhesive is a plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and tasteless, and is an environmentally friendly chemical product. It is popular because the product itself is solid, easy to package, transport, store, solvent-free, pollution-free, non-toxic; and has the advantages of simple production process, high added value, high bonding strength, and fast speed.

[0003] A hot melt adhesive film coating device in the prior art (Announcement No.: CN210647033U) forms an independent storage bin by utilizing adjacent push plates and the cavity surface to store the adhesive liquid and transport the adhesive liquid to the second arc transition zone as the adhesive feeding roller rotates, and continuously transports the adhesive liquid to the adhesive outlet seam, and then controls the rotation speed of the rotating shaft to achieve continuous and controllable adhesive output. However, as the adhesive liquid is transported by the adhesive feeding roller, some of the local adhesive liquid is relatively static or flows less, causing part of the adhesive liquid to solidify, resulting in uneven adhesive coating and poor coating quality. Therefore, it is urgent to design a hot melt adhesive film coating device that can prevent the adhesive liquid from solidifying during the adhesive feeding process. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and provides a coating device for hot melt adhesive film.

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

[0006] A coating device for hot melt adhesive film comprises a glue outlet box, a feeding channel with a circular structure and penetrating the surface of the glue outlet box is provided on one side of the glue outlet box, a feeding barrel is rotatably installed in the feeding channel, a plurality of quantitative grooves are provided on the surface of the feeding barrel, a stirring rod is rotatably installed in each of the quantitative grooves, a groove is provided on one side of the feeding barrel, an electric heating block is fixedly installed in the groove, a power-carrying end that can be rotatably connected is provided on one side of the electric heating block, an inner gear ring is fixedly installed in the open end of the feeding channel, a plurality of gears are installed on the edge of one end of the feeding barrel in a uniformly circumferential manner, each of the gears is meshed with the inner gear ring, and the rotation center of one side of each gear passes through the surface of the feeding barrel through a connecting shaft and is fixedly installed on one end of the corresponding stirring rod.

[0007] As a further solution of the utility model, a glue inlet is provided at the top of the glue box, a glue outlet is provided at the bottom of the glue box, a scraper is provided on one side of the glue outlet, and the scraper is adjustably fixed to the bottom of the glue box by bolts.

[0008] As a further solution of the utility model, a glue coating roller is rotatably installed at the bottom of the glue discharge box, a cleaning roller is rotatably installed on one side of the bottom of the glue discharge box, one end of the glue coating roller and the cleaning roller are fixedly installed with driven chain discs, and a driving chain disc is fixedly installed with the rotation center of one end of the feeding barrel away from the gear, and a chain is connected between the driving chain disc and the two driven chain discs.

[0009] As a further solution of the utility model, a plurality of adapter blocks are evenly fixedly installed on the edge of the other end of the feeding barrel in a circular shape, a turntable is fixedly installed on the surface of the plurality of adapter blocks, a driven pulley is fixedly installed in the middle of one side of the turntable, and through holes are provided in the center of the driven pulley and the surface of the turntable, and an electric rotating joint for energizing the electric heating block is provided in the through hole.

[0010] As a further solution of the utility model, a bracket is fixedly installed on one side of the glue discharge box, one side of the bracket is fixedly installed with an electric rotating joint, a servo motor is fixedly installed on the other side of the glue discharge box, a driving pulley is fixedly installed on the output end of the servo motor, and a belt is connected between the driving pulley and the driven pulley.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting a feed barrel with multiple metering grooves to rotate, an equal amount of glue liquid can be delivered to the surface of the glue coating roller. As the feed barrel rotates, multiple gears can be driven to rotate in mesh with the internal gear ring, and then multiple stirring rods rotate with the rotation of the multiple gears, thereby stirring the glue liquid in the conveying process to prevent the glue liquid from solidifying. The feed barrel is properly heated in combination with the motor heat block, so that the glue liquid always maintains appropriate fluidity in the metering groove, thereby improving the uniformity of the equipment during coating, and thus improving the coating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of a coating device for hot melt adhesive film proposed by the utility model;

[0014] Figure 2 This is a bottom view structural schematic diagram of a hot melt adhesive film coating device proposed by the utility model;

[0015] Figure 3 This is a schematic diagram of the explosion structure of a coating device for hot melt adhesive film proposed by the utility model;

[0016] Figure 4 The utility model is a cross-sectional structural schematic diagram of a coating device for hot melt adhesive film.

[0017] In the figure: 1. glue box; 2. glue inlet; 3. cleaning roller; 4. servo motor; 5. driving pulley; 6. belt; 7. bracket; 8. electric rotary joint; 9. driven pulley; 10. turntable; 11. feeding channel; 12. glue coating roller; 13. scraper; 14. driven tooth plate; 15. chain; 16. driving tooth plate; 17. inner gear ring; 18. electric heating block; 19. gear; 20. stirring rod; 21. adapter block; 22. feeding barrel; 23. metering slot; 24. glue outlet. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Reference Figure 1-Figure 4 A coating device for hot melt adhesive film comprises a glue discharging box 1, a feeding channel 11 with a circular structure and penetrating the surface of the glue discharging box 1 is provided on one side of the glue discharging box 1, a feeding barrel 22 is rotatably installed in the feeding channel 11, a plurality of quantitative grooves 23 are provided on the surface of the feeding barrel 22, a stirring rod 20 is rotatably installed in each quantitative groove 23, a groove is provided on one side of the feeding barrel 22, an electric heating block 18 is fixedly installed in the groove, a power-on end that can be rotatably connected is provided on one side of the electric heating block 18, an inner gear ring 17 is fixedly installed in the open end of the feeding channel 11, a plurality of gears 19 are uniformly installed on the edge of one end of the feeding barrel 22 in a circular rotation, each gear 19 is meshed with the inner gear ring 17, and the rotation center of one side of each gear 19 passes through the surface of the feeding barrel 22 through a connecting shaft and is fixedly installed with one end of the corresponding stirring rod 20.

[0022] When in use, by setting the feed barrel 22 with multiple quantitative grooves 23 to rotate, an equal amount of glue liquid can be output from the bottom of the glue outlet box 1, and the rotation of the feed barrel 22 can drive the multiple gears 19 to mesh and rotate with the internal gear ring 17, and then the multiple stirring rods 20 rotate with the rotation of the multiple gears 19, so that the glue liquid in the conveying process can be stirred to prevent the glue liquid from solidifying, and then the motor heat block 18 is combined to properly heat the feed barrel 22, so that the glue liquid always maintains appropriate fluidity in the quantitative groove 23, thereby improving the uniformity of the equipment during coating, and thus improving the coating quality.

[0023] In this embodiment, a glue inlet 2 is provided at the top of the glue box 1, a glue outlet 24 is provided at the bottom of the glue box 1, a scraper 13 is provided on one side of the glue outlet 24, and the scraper 13 is adjustably fixedly installed at the bottom of the glue box 1 by bolts, a glue coating roller 12 is rotatably installed at the bottom of the glue box 1, a cleaning roller 3 is rotatably installed on one side of the bottom of the glue box 1, and one end of the glue coating roller 12 and the cleaning roller 3 are fixedly installed with a driven toothed disc 14, and a driving toothed disc 16 is fixedly installed at the rotation center of one end of the feeding cylinder 22 away from the gear 19, and a chain 15 is sleeved between the driving toothed disc 16 and the two driven toothed discs 14.

[0024] When in use, the prepared glue liquid is added from the glue inlet 2, and is evenly transported to the glue outlet 24 through the feeding tube 22, and then adheres to the surface of the glue coating roller 12. By adjusting the distance between the scraper 13 and the glue coating roller 12, the coating thickness can be controlled, thereby better meeting the coating requirements. The installation of the cleaning roller 3 next to the glue coating roller 12 helps to keep the equipment clean and ensure that no impurities or residues affect the coating effect during the coating process. The design of the chain 15 and the toothed disc helps to ensure the synchronous operation between the glue coating roller 12 and the cleaning roller 3, thereby improving the practicability of the equipment.

[0025] In this embodiment, a plurality of adapter blocks 21 are evenly fixedly installed on the edge of the other end of the feeding cylinder 22 in a circular shape, a turntable 10 is fixedly installed on the surface of the plurality of adapter blocks 21, a driven pulley 9 is fixedly installed in the middle of one side of the turntable 10, and through holes are provided in the center of the driven pulley 9 and the surface of the turntable 10, and an electric rotating joint 8 for energizing the electric heating block 18 is provided in the through hole, a bracket 7 is fixedly installed on one side of the glue output box 1, and one side of the bracket 7 is fixedly installed with the electric rotating joint 8, and a servo motor 4 is fixedly installed on the other side of the glue output box 1, a driving pulley 5 is fixedly installed on the output end of the servo motor 4, and a belt 6 is sleeved between the driving pulley 5 and the driven pulley 9.

[0026] When in use, the servo motor 4 can drive the rotation of the turntable 10 through the transmission of the belt 6, and then drive the feeding barrel 22 to rotate. By controlling the rotation speed of the feeding barrel 22, the delivery rate of the glue can be controlled to meet the coating requirements of different speeds. By setting the electric rotating joint 8, the electric heating block 18 can be energized at all times in the rotating state to meet the heating requirements of the glue, thereby improving the practicability of the equipment.

[0027] From the above description, it can be seen that the above-mentioned embodiments of the utility model achieve the following technical effects: through the feeding channel 11 and the feeding barrel 22 therein, the glue can be accurately supplied to the glue outlet 24, and the design of the quantitative groove 23 and the stirring rod 20 helps to ensure the uniform mixing and accurate distribution of the glue, thereby controlling the coating amount of the glue; the electric heating block 18 is installed inside the feeding barrel 22, which can provide heating for the glue, help maintain the fluidity and viscosity of the glue, and combined with the stirring of the stirring rod 20, it can ensure the coating quality and effect; the design of the scraper 13 and the glue roller 12 helps to evenly coat the glue on the required surface, and the position of the scraper 13 can be adjusted by bolts to control the coating thickness; the cleaning roller 3 is installed next to the glue roller 12, which helps to keep the equipment clean and ensure that no impurities or residues will affect the coating effect during the coating process; the design of the chain 15 and the toothed disc helps to ensure the synchronous operation between the glue roller 12 and the cleaning roller 3.

[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A coating device for hot melt adhesive film, comprising a glue outlet box (1), characterized in that: A feeding channel (11) with a circular structure and penetrating the surface of the discharging box (1) is provided on one side of the discharging box (1), a feeding barrel (22) is rotatably installed in the feeding channel (11), a plurality of quantitative grooves (23) are provided on the surface of the feeding barrel (22), a stirring rod (20) is rotatably installed in each of the quantitative grooves (23), a groove is provided on one side of the feeding barrel (22), an electric heating block (18) is fixedly installed in the groove, and a power-on end that can be rotatably connected is provided on one side of the electric heating block (18), an inner gear ring (17) is fixedly installed in the open end of the feeding channel (11), a plurality of gears (19) are uniformly rotatably installed on the edge of one end of the feeding barrel (22), each of the gears (19) is meshed with the inner gear ring (17), and the rotation center of one side of each gear (19) passes through the surface of the feeding barrel (22) through a connecting shaft and is fixedly installed on one end of the corresponding stirring rod (20).

2. A hot melt adhesive film coating device according to claim 1, characterized in that: The glue outlet box (1) has a glue inlet (2) at the top, a glue outlet (24) at the bottom, a scraper (13) at one side of the glue outlet (24), and the scraper (13) is adjustably fixed to the bottom of the glue outlet box (1) by means of bolts.

3. A hot melt adhesive film coating device according to claim 1, characterized in that: A glue coating roller (12) is rotatably mounted at the bottom of the glue discharging box (1), a cleaning roller (3) is rotatably mounted at one side of the bottom of the glue discharging box (1), a driven toothed disc (14) is fixedly mounted at one end of each of the glue coating roller (12) and the cleaning roller (3), a driving toothed disc (16) is fixedly mounted at the rotation center of one end of the feeding cylinder (22) away from the gear (19), and a chain (15) is sleeved between the driving toothed disc (16) and the two driven toothed discs (14).

4. A hot melt adhesive film coating device according to claim 3, characterized in that: A plurality of adapter blocks (21) are evenly and fixedly mounted on the edge of the other end of the feeding cylinder (22) in a circular shape, a turntable (10) is fixedly mounted on the surface of the plurality of adapter blocks (21), a driven pulley (9) is fixedly mounted in the middle of one side of the turntable (10), through holes are provided at the center of the surface of the driven pulley (9) and the turntable (10), and an electric rotary joint (8) is provided in the through hole for energizing the electric heating block (18).

5. A hot melt adhesive film coating device according to claim 1, characterized in that: A bracket (7) is fixedly mounted on one side of the glue discharging box (1), and an electric rotary joint (8) is fixedly mounted on one side of the bracket (7). A servo motor (4) is fixedly mounted on the other side of the glue discharging box (1), and a driving pulley (5) is fixedly mounted on the output end of the servo motor (4), and a belt (6) is sleeved between the driving pulley (5) and a driven pulley (9).

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