Hot melting gluing mechanism

Abstract

The utility model discloses a hot melt gluing mechanism, which relates to the technical field of packaging equipment, and comprises a first shell 1 and a second shell 2 which are arranged up and down, the first shell 1 and the second shell 2 are connected in an overturning manner, a heating medium chamber 7 is arranged in the first shell 1 and the second shell 2, a liquid outlet channel 3 is formed between the first shell 1 and the second shell 2, and the liquid outlet channel 3 is communicated with the first shell 1 and the second shell 2. A gear shaft assembly 4 and a gluing round bar 5 are arranged in the liquid outlet channel 3, the gear shaft assembly 4 comprises gear shafts which are connected in a segmented mode in the axial direction, one end of the gear shaft assembly 4 is connected with the first driving assembly 6, and the other end of the gear shaft assembly 4 is detachably connected with the second shell 2. The hot melting gluing mechanism has the advantages of being high in gluing precision and convenient to clean.

Description

Technical Field

[0001] The utility model belongs to the technical field of coating equipment, and particularly relates to a hot melt glue coating mechanism. Background Art

[0002] Transdermal patch administration is to evenly coat the medicine on a coil, and then package it through corresponding technological processes. When a patient needs to use it, just apply it on the skin surface of the body. The medicine is in close contact with the skin and is absorbed by the skin and then ingested by the patient to treat various diseases.

[0003] The hot melt glue coating mechanism is one of the production equipment for transdermal patches. The heated colloid is evenly coated on the surface of the object to be processed through the hot melt glue coating mechanism. The existing hot melt glue coating mechanism is difficult to ensure and control the thickness and weight accuracy and uniformity of the coated product at high temperature, and it is difficult to clean the hot melt glue coating mechanism after coating. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a hot melt glue coating mechanism with high coating accuracy and easy to clean.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A hot melt glue coating mechanism includes a first housing 1 and a second housing 2 arranged up and down. The first housing 1 and the second housing 2 are rotatably connected. A heating medium chamber 7 is arranged inside the first housing 1 and the second housing 2. A liquid outlet channel 3 is formed between the first housing 1 and the second housing 2. A gear shaft assembly 4 and a glue coating round rod 5 are arranged in the liquid outlet channel 3. The gear shaft assembly 4 includes a gear shaft connected in sections along the axial direction. One end of the gear shaft assembly 4 is connected to a first driving assembly 6, and the other end is detachably connected to the second housing 2. The multi-section gear shaft is convenient for processing and forming, ensuring that the processed gear shaft is not skewed, realizing uniform delivery of the colloid, thereby ensuring coating accuracy. The gear shaft assembly 4 is detachably connected to the second housing. By flipping the first housing 1 and the second housing 2, it is convenient to disassemble and assemble the gear shaft and easy to clean.

[0007] As a further improvement of the above technical solution:

[0008] First mounting plates 8 and second mounting plates 9 are oppositely arranged on both sides of the heating medium chamber 7. First partition plates 10 and second partition plates 11 are alternately arranged inside the heating medium chamber 7. One end of the first partition plate 10 is connected to the first mounting plate 8, and one end of the second partition plate 11 is connected to the second mounting plate 9, enabling the heating medium to flow back and forth to ensure temperature uniformity.

[0009] The heating medium chamber 7 includes a first heating medium chamber 12 disposed within the first housing 1 and a second heating medium chamber 13 disposed within the second housing 2. The first heating medium chamber 12 is connected to a first feed port 14 and a first discharge port 15, and the second heating medium chamber 13 is connected to a second feed port 16 and a second discharge port 17. The first feed port 14 is connected to the second discharge port 17, the first discharge port 15 and the second feed port 16 are located on the same side, and the first feed port 14 and the second discharge port 17 are located on opposite sides. The two heating medium chambers are connected in series through a pipeline, and the heating medium enters from the bottom and exits from the top, which is convenient for connecting heating equipment. Only one heating equipment is required to heat the two heating medium chambers, saving costs.

[0010] The gear shaft assembly 4 includes a first gear shaft 18 and a second gear shaft 19 that mesh with each other. The first gear shaft 18 and the second gear shaft 19 are arranged vertically. The second gear shaft 19 is connected to the first drive assembly 6. By using one drive assembly to drive two gear shafts simultaneously, the synchronous rotation of the gear shafts is ensured, the output colloid is more stable, and only one drive assembly is required to drive two gear shafts, saving costs.

[0011] The multi-section gear shafts of the second gear shaft 19 are connected by interference fit with a flat square, which is convenient for disassembly and assembly.

[0012] The gear shaft assembly 4 includes a gear shaft and a mounting seat provided at one end of the gear shaft. A positioning seat 20 is provided within the second housing 2. The positioning seat 20 is inserted between the mounting seat and the second housing 2. A connection hole 21 is provided above the positioning seat 20. The positioning seat 20 is pulled out through the connection hole 21 by connecting structures such as screws, and the mounting seat is disassembled from one end of the gear shaft, which is convenient for disassembling and assembling the segmented gear shaft.

[0013] The glue-applying round rod 5 is inserted between the first housing 1 and the second housing 2. One end of the glue-applying round rod 5 is connected to the second drive assembly 22. Glue is applied through the glue-applying round rod 5, which is convenient for controlling the glue application amount and ensuring the glue application accuracy.

[0014] A liquid inlet 23 is provided on the upper surface of the first housing 1. The liquid inlet 23 is connected to the liquid outlet channel 3. A temperature detection element 24 is provided on the second housing 2, which is convenient for docking with the feed bin and controlling the hot melt temperature.

[0015] Positioning blocks 25 are provided on the first housing 1 and the second housing 2. The positioning blocks 25 connect the first housing 1 and the second housing 2 through locking members. The locking members are detachably connected to the positioning blocks 25, which is convenient for disassembly and assembly when the first housing 1 and the second housing 2 are combined for glue discharge and flipped open.

[0016] The first housing 1 is provided with an adjusting member 26 and an adjusting slot 27. The adjusting member 26 is used to adjust the gap between the glue - applying round rod 5 and the liquid - outlet channel 3. The adjusting member 26 and the adjusting slot 27 are arranged above the glue - applying round rod 5. The bottom end of the adjusting member 26 abuts against the lower surface of the adjusting slot 27 to control the glue output and ensure the glue - applying accuracy.

[0017] Compared with the prior art, the advantages of the present utility model are as follows:

[0018] A hot - melt glue - applying mechanism of the present utility model includes a first housing 1 and a second housing 2 arranged up and down. The first housing 1 and the second housing 2 are rotatably connected. Heating medium chambers 7 are arranged inside the first housing 1 and the second housing 2. A liquid - outlet channel 3 is formed between the first housing 1 and the second housing 2. A gear - shaft assembly 4 and a glue - applying round rod 5 are arranged in the liquid - outlet channel 3. The gear - shaft assembly 4 includes a gear shaft connected in sections along the axial direction. One end of the gear - shaft assembly 4 is connected to a first driving assembly 6, and the other end is detachably connected to the second housing 2. By flipping the first housing 1, the first housing 1 is separated from the second housing 2, exposing the internal liquid - outlet channel 3, gear - shaft assembly 4 and glue - applying round rod 5, which is convenient for disassembling the gear - shaft assembly 4 and the glue - applying round rod 5 and facilitating subsequent cleaning. The multi - section - arranged gear shaft is convenient for machining and forming, ensuring that the machined gear shaft is not skewed, realizing uniform conveyance of the colloid, and thus ensuring the coating accuracy. The gear - shaft assembly 4 is detachably connected to the second housing, facilitating sectional disassembly and assembly of the gear shaft and facilitating cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of a hot - melt glue - applying mechanism of the present utility model when the first housing and the second housing are opened;

[0020] Figure 2 is a cross - sectional view of a hot - melt glue - applying mechanism;

[0021] Figure 3 is a schematic rear - side structural diagram of a hot - melt glue - applying mechanism;

[0022] Figure 4 is a cross - sectional view of a gear - shaft assembly;

[0023] Figure 5 is a schematic front - side structural diagram of a hot - melt glue - applying mechanism;

[0024] Figure 6 is a schematic structural diagram of a heating medium chamber;

[0025] Figure 7 is a schematic internal - structure diagram of a second housing.

[0026] Explanation of the reference numerals of the attached drawings of the present utility model in the figure: 1. First housing; 2. Second housing; 3. Liquid outlet channel; 4. Gear shaft assembly; 5. Glue application round rod; 6. First driving assembly; 7. Heating medium chamber; 8. First mounting plate; 9. Second mounting plate; 10. First partition; 11. Second partition; 12. First heating medium chamber; 13. Second heating medium chamber; 14. First feed port; 15. First discharge port; 16. Second feed port; 17. Second discharge port; 18. First gear shaft; 19. Second gear shaft; 20. Positioning seat; 21. Connecting hole; 22. Second driving assembly; 23. Liquid inlet; 24. Temperature detection element; 25. Positioning block; 26. Adjusting member; 27. Adjusting slot; 28. Handle; 29. Hinge. Specific embodiments

[0027] The present utility model will be further described in detail below with reference to the accompanying drawings of the specification and specific embodiments.

[0028] As Figures 1 to 7 shown, a hot melt glue application mechanism includes a first housing 1 and a second housing 2 arranged up and down. The first housing 1 and the second housing 2 are flip-connected. A heating medium chamber 7 is provided inside the first housing 1 and the second housing 2. A liquid outlet channel 3 is formed between the first housing 1 and the second housing 2. A gear shaft assembly 4 and a glue application round rod 5 are provided in the liquid outlet channel 3. The gear shaft assembly 4 includes gear shafts connected in sections along the axial direction. One end of the gear shaft assembly 4 is connected to the first driving assembly 6, and the other end is detachably connected to the second housing 2. By flipping the first housing 1, the first housing 1 is separated from the second housing 2, exposing the internal liquid outlet channel 3, gear shaft assembly 4 and glue application round rod 5, facilitating the disassembly of the gear shaft assembly 4 and the glue application round rod 5, and facilitating subsequent cleaning. The multi-section gear shafts are convenient for processing and forming, ensuring that the processed gear shafts are not skewed, realizing uniform conveyance of the colloid, and thus ensuring the coating accuracy. The gear shaft assembly 4 is detachably connected to the second housing, facilitating sectional disassembly and assembly of the gear shafts and facilitating cleaning.

[0029] The first housing 1 and the second housing 2 are connected by a hinge 29. A handle 28 is provided at a position of the first housing 1 close to the hinge 29. The handle 28 includes two vertical rods arranged vertically and a cross bar connecting the two vertical rods arranged vertically at both ends. The length of the upper vertical rod is greater than that of the lower vertical rod. The lower vertical rod is arranged close to the side wall of the first housing 1. By grasping the upper vertical rod of the handle 28 to flip the first housing 1, it is more labor-saving.

[0030] First mounting plates 8 and second mounting plates 9 are provided opposite to both sides of the heating medium chamber 7. First partitions 10 and second partitions 11 are alternately arranged inside the heating medium chamber 7. One end of the first partition 10 is connected to the first mounting plate 8, and one end of the second partition 11 is connected to the second mounting plate 9. As Figure 6As shown, a heating medium flow channel is formed between the first partition plate 10 and the second partition plate 11. One end of this heating medium flow channel is connected to the outlet of the heating medium flow channel on one side, and the other end is connected to the inlet of the heating medium flow channel on the other side. Therefore, the heating medium in adjacent heating medium flow channels has different flow directions, causing the heating medium to flow reciprocally, ensuring temperature uniformity. The commonly used heating medium is heating oil, which keeps the temperature of the first housing 1 and the second housing 2 between 100 degrees Celsius and 200 degrees Celsius.

[0031] The heating medium chamber 7 includes a first heating medium chamber 12 provided in the first housing 1 and a second heating medium chamber 13 provided in the second housing 2. The first heating medium chamber 12 is connected to a first feed port 14 and a first discharge port 15, and the second heating medium chamber 13 is connected to a second feed port 16 and a second discharge port 17. The first feed port 14 is connected to the second discharge port 17, the first discharge port 15 and the second feed port 16 are on the same side, and the first feed port 14 and the second discharge port 17 are on the opposite sides.

[0032] The heating device (not shown in the figure, usually an oil temperature machine) inputs the heating medium into the second heating medium chamber 13 through the second feed port 16, and then outputs it through the second discharge port 17. The second discharge port 17 and the first feed port 14 are on the same side, facilitating pipeline connection. Then, the heating medium entering the first heating medium chamber 12 is input into the heating device through the first discharge port 15. The first discharge port 15 and the second feed port 15 are on the same side, facilitating pipeline connection to the heating device. By connecting the two heating medium chambers in series through pipelines, the heating medium enters from the bottom and exits from the top, facilitating connection to the heating device. Only one heating device is required to heat the two heating medium chambers, saving costs.

[0033] As Figure 4 shown, the gear shaft assembly 4 includes a first gear shaft 18 and a second gear shaft 19 that mesh with each other. The first gear shaft 18 and the second gear shaft 19 are arranged vertically. The second gear shaft 19 is connected to the first drive assembly 6. By using one drive assembly to drive two gear shafts simultaneously, the synchronous rotation of the gear shafts is ensured, the output colloid is more stable, and only one drive assembly is required to drive two gear shafts, saving costs. The multi-segment gear shafts of the second gear shaft 19 are connected by interference fit with a flat square, facilitating disassembly and assembly. Installation sleeves are provided outside the parts where the flat squares are connected at both ends of the gear shafts. The flat squares are wrapped from the outside by the installation sleeves to prevent the colloid from flowing into the interior of the gear shafts and reducing the cleaning difficulty of the gear shafts.

[0034] The gear shaft assembly 4 includes a gear shaft and a mounting seat provided at one end of the gear shaft. A positioning seat 20 is provided in the second housing 2. The positioning seat 20 is inserted and arranged between the mounting seat and the second housing 2. A connecting hole 21 is provided above the positioning seat 20. The positioning seat 20 is pulled out through the connecting hole 21 by structures such as screws, and the mounting seat is disassembled from one end of the gear shaft, facilitating the disassembly and assembly of the segmented gear shaft. The mounting seat at one end of the gear shaft is a rubber sleeve, which can fix the first gear shaft 18 and the second gear shaft 19 arranged up and down while not affecting the rotation of the gear shaft.

[0035] The glue - applying round rod 5 is inserted between the first housing 1 and the second housing 2. One end of the glue - applying round rod 5 is connected to the second driving component 22. The second driving component 22 is a servo motor. The glue - applying round rod 5 is driven to rotate by the servo motor to complete glue - applying, facilitating the control of the glue - applying amount and ensuring the glue - applying accuracy.

[0036] A liquid inlet 23 is provided on the upper surface of the first housing 1. The liquid inlet 23 is connected to the liquid outlet channel 3. A temperature detection component 24 is provided on the second housing 2, facilitating the docking of the liquid inlet 22 to the material bin and temperature control.

[0037] Positioning blocks 25 are provided on the first housing 1 and the second housing 2. The positioning blocks 25 connect the first housing 1 and the second housing 2 through locking components. The locking components are detachably connected to the positioning blocks 25. The locking components are screws. When the first housing 1 and the second housing 2 need to be combined for glue - applying, the positioning blocks 25 are fixed on the first housing 1 and the second housing 2 through the locking components, enabling the liquid outlet channel 3 inside the first housing 1 and the second housing 2 to complete glue - discharging. When the first housing 1 and the second housing 2 need to be flipped open for cleaning, the locking components are removed, and the positioning blocks 25 can be detached from the first housing 1 and the second housing 2. The positioning blocks 25 are respectively arranged on the side and back of the first housing 1 and the second housing 2. The positioning block 25 arranged on the side is a side plate, and the side plate covers the side walls of the entire first housing 1 and the second housing 2 to achieve side positioning. The positioning blocks 25 arranged on the back are divided into two pieces to achieve back positioning. The two - piece arranged positioning blocks 25 are used to avoid the hinge 29.

[0038] An adjusting part 26 and an adjusting slot 27 are provided on the first housing 1. The adjusting part 26 is used to adjust the gap between the glue - applying round rod 5 and the liquid outlet channel 3. The adjusting part 26 and the adjusting slot 27 are arranged above the glue - applying round rod 5. The bottom end of the adjusting part 26 abuts against the lower surface of the adjusting slot 27 to control the glue - discharging amount and ensure the glue - applying accuracy. The adjusting part 26 is a bolt. When it is necessary to reduce the glue - discharging amount, the bolt is tightened, so that the bottom end of the bolt further presses against the lower surface of the adjusting slot 27. At this time, the first housing 1 will be closer to the second housing 2, reducing the width of the liquid outlet channel 3, and then reducing the gap between the glue - applying round rod 5 and the liquid outlet channel 3, reducing the amount of glue applied to the glue - applying round rod 5, thereby controlling the glue - applying accuracy. When it is necessary to increase the glue - discharging amount, the bolt is loosened.

[0039] Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present utility model by using the technical content disclosed above without departing from the scope of the technical solution of the present utility model, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall fall within the scope of protection of the technical solution of the present utility model.

Claims

1. A hot melt adhesive coating mechanism, characterized in that, It includes a first housing (1) and a second housing (2) arranged vertically. The first housing (1) and the second housing (2) are flip-connected. A heating medium chamber (7) is provided inside the first housing (1) and the second housing (2). An outlet channel (3) is formed between the first housing (1) and the second housing (2). A gear shaft assembly (4) and a glue-applying round rod (5) are provided in the outlet channel (3). The gear shaft assembly (4) includes a gear shaft connected in sections along the axial direction. One end of the gear shaft assembly (4) is connected to a first driving assembly (6), and the other end is detachably connected to the second housing (2).

2. The hot melt gluing mechanism according to claim 1, characterized in that, On both sides of the heating medium chamber (7), a first mounting plate (8) and a second mounting plate (9) are relatively provided. First partitions (10) and second partitions (11) are alternately provided inside the heating medium chamber (7). One end of the first partition (10) is connected to the first mounting plate (8), and one end of the second partition (11) is connected to the second mounting plate (9).

3. The hot melt adhesive coating mechanism according to claim 1, characterized in that, The heating medium chamber (7) includes a first heating medium chamber (12) provided in the first housing (1) and a second heating medium chamber (13) provided in the second housing (2). The first heating medium chamber (12) is connected to a first feed port (14) and a first discharge port (15). The second heating medium chamber (13) is connected to a second feed port (16) and a second discharge port (17). The first feed port (14) is connected to the second discharge port (17). The first discharge port (15) and the second feed port (16) are on the same side, and the first feed port (14) and the second discharge port (17) are on the opposite side.

4. A hot melt adhesive coating mechanism according to claim 1, characterized in that, The gear shaft assembly (4) includes a first gear shaft (18) and a second gear shaft (19) that mesh with each other. The first gear shaft (18) and the second gear shaft (19) are arranged vertically. The second gear shaft (19) is connected to the first driving assembly (6).

5. The hot melt adhesive applying mechanism according to claim 4, characterized in that, The multi-segment gear shafts of the second gear shaft (19) are connected by flat-square interference fit.

6. The hot melt adhesive coating mechanism according to claim 1, characterized in that, The gear shaft assembly (4) includes a gear shaft and a mounting seat provided at one end of the gear shaft. A positioning seat (20) is provided in the second housing (2). The positioning seat (20) is inserted between the mounting seat and the second housing (2). A connection hole (21) is provided above the positioning seat (20).

7. A hot melt adhesive coating mechanism according to claim 1, characterized in that, The glue-applying round rod (5) is inserted between the first housing (1) and the second housing (2). One end of the glue-applying round rod (5) is connected to a second driving assembly (22).

8. The hot melt adhesive coating mechanism according to claim 1, characterized in that, A liquid inlet (23) is provided on the upper surface of the first housing (1). The liquid inlet (23) is connected to the outlet channel (3). A temperature detection member (24) is provided on the second housing (2).

9. The hot melt gluing mechanism according to claim 1, characterized in that, Positioning blocks (25) are provided on the first housing (1) and the second housing (2). The positioning blocks (25) connect the first housing (1) and the second housing (2) through locking members. The locking members are detachably connected to the positioning blocks (25).

10. A hot melt adhesive coating mechanism as described in claim 1, characterized in that, The first housing (1) is provided with an adjusting member (26) and an adjusting slot (27). The adjusting member (26) is used to adjust the gap between the glue-applying round rod (5) and the liquid outlet channel (3). The adjusting member (26) and the adjusting slot (27) are arranged above the glue-applying round rod (5), and the bottom end of the adjusting member (26) abuts against the lower surface of the adjusting slot (27).

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