Hot melt adhesive machine facilitating extrusion of hot melt adhesive

Abstract

The utility model relates to the technical field of hot melt adhesive, in particular to a hot melt adhesive machine convenient for hot melt adhesive extrusion, which comprises a horizontally arranged base, a feeding channel is arranged at the upper end of the base, the lower end of the outer wall of the feeding channel is fixedly assembled with the surface of the base through a support, and a heating channel is arranged at an opening at one end of the feeding channel. And a motor is arranged above the base, the lower end of the outer wall of the motor and the upper end face of the base are fixedly assembled through a support, and a rotating shaft used for driving is arranged in the motor. Through cooperation of the charging channel and the heating channel, a complete feeding channel can be formed, the rotating shaft of the motor drives the shaft rod to rotate, so that the spiral pieces are in linkage, spiral feeding of hot melt adhesive blanks fed through the charging opening can be achieved, hot melt adhesive ingredients can be heated and melted through heating of the electric heating pipe, and the hot melt adhesive ingredients can be heated and melted. Finally, the materials are discharged through the opening of the heating channel.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive technology, and in particular to a hot melt adhesive machine that facilitates hot melt adhesive extrusion. Background Technology

[0002] Hot melt adhesives have many advantages, such as rapid curing, strong adhesion, and ease of use, and are therefore widely used in many fields, such as handicrafts, home repair, and industrial production.

[0003] A hot melt adhesive dispensing machine is a device used to inject hot melt adhesive into products or packaging. Hot melt adhesive is an adhesive that melts when heated and solidifies when cooled. The hot melt adhesive dispensing machine heats the hot melt adhesive to melt it and then injects it into products or packaging to achieve the purpose of bonding and sealing.

[0004] The main components of a hot melt adhesive dispensing machine include a hot melt adhesive tank, a heating system, a pumping system, and nozzles. The working process is as follows:

[0005] Hot melt adhesive is placed in a hot melt adhesive tank, and the heating system heats the hot melt adhesive to a molten state. The feeding system then delivers the molten hot melt adhesive to the nozzle via a glue pump. The nozzle injects the hot melt adhesive into the product or packaging to achieve bonding and sealing.

[0006] Hot melt adhesive dispensing machines are widely used in industries such as packaging, printing, electronics, furniture, and automobiles. They have advantages such as easy operation, high efficiency, and environmental friendliness. When selecting a hot melt adhesive dispensing machine, it is necessary to choose the appropriate equipment based on the specific product and process requirements.

[0007] Currently, in some large-scale packaging and processing sites, large-scale hot melt adhesive extrusion structures are generally used to ensure the supply of molten hot melt adhesive. This ensures a continuous supply of hot melt adhesive. Therefore, it is necessary to design a device that can melt and mix hot melt adhesive materials, ensure stable feeding, and be able to connect stably with the adhesive pump to meet the operational stability requirements of hot melt adhesive supply. Utility Model Content

[0008] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a hot melt adhesive machine that facilitates hot melt adhesive extrusion.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] Design a hot melt adhesive extrusion machine for convenient hot melt adhesive, including a horizontally positioned base. A feeding channel is located at the upper end of the base, and the lower end of the outer wall of the feeding channel is fixedly mounted to the surface of the base via a bracket. A heating channel is located at one open end of the feeding channel, and the end face of the heating channel is tightly fitted to the end face of the feeding channel and connected via a flange. A motor is mounted above the base, and the lower end of the outer wall of the motor is fixedly mounted to the upper surface of the base via a bracket. A drive shaft is located inside the motor, and one end of the shaft extends outward through the interior of the motor. A sealed bearing is located at the sealed end of the feeding channel. The outer ring wall of the sealed bearing penetrates the sealed end of the feeding channel. The connection between the outer ring wall of the sealed bearing and the sealed end of the feeding channel is fixed by welding. A shaft is installed through the inside of the sealed bearing, and the surface of the shaft is interference-fitted with the inner ring wall of the sealed bearing. The outer end of the shaft is fixedly assembled with the end face of the motor shaft by a coupling. A spiral blade is wound on the surface of the shaft, and the inner surface of the spiral blade is welded to the outer wall of the shaft. The outer surface of the spiral blade rotates and fits tightly against the inner wall of the feeding channel and the inner wall of the heating channel, respectively. A feeding port penetrating the inside is opened at the upper end of the outer ring wall of the feeding channel.

[0011] In detail, the heating channel is made of stainless steel, and a protective cover made of ceramic material is provided on the outer ring wall of the heating channel. The inner ring wall of the protective cover is fitted and fixed to the surface of the heating channel.

[0012] In detail, the outer wall of the heating channel is wound with a spiral structure electric heating tube, the surface of the electric heating tube is in close contact with the surface of the heating channel, and the two ends of the electric heating tube are respectively provided with wiring ports, and the ends of the wiring ports extend outward through the protective cover.

[0013] In detail, the other end of the heating channel is provided with a discharge port. One side of the discharge port is fixed to the end face of the heating channel by a flange. The center of the discharge port is provided with a mounting hole for connecting the glue pump. The mounting hole is connected to the heating channel and the inner wall of the mounting hole is threaded.

[0014] In detail, the discharge interface has a ramp inside, one side of which is fixedly assembled with the inner wall of the discharge interface by screws, and the ramp is located directly below the mounting hole.

[0015] In detail, a cylinder is provided at the upper end of the discharge port, the surface of the cylinder penetrates the interior of the discharge port, and the connection between the cylinder and the discharge port is fixed by screws. A piston rod for extension and retraction is provided inside the cylinder, and the lower end of the piston rod extends downward through the interior of the cylinder.

[0016] In detail, the piston rod of the cylinder is provided with a connecting plate at its lower end. The upper surface of the connecting plate is fixed to the end of the piston rod by screws. A scraper is provided at the lower end of the connecting plate. The upper end of the scraper is welded and fixed to the surface of the connecting plate. One side of the connecting plate and one side of the scraper are slidably attached to the inner wall of the discharge interface, and the scraper is located directly above the mounting hole.

[0017] The design scheme proposed in this utility model has the following beneficial effects in application:

[0018] 1. By combining the feeding channel and the heating channel, a complete feeding channel can be formed. The motor shaft drives the shaft to rotate, which in turn causes the spiral blades to move together. This allows the hot melt adhesive blanks fed through the feeding port to be spirally fed. The hot melt adhesive is heated and melted by the heating tube, and finally discharged through the opening of the heating channel.

[0019] 2. Add a discharge port at the end of the heating channel. The mounting hole at its center can not only serve as a discharge port, but also be threaded into the interface of the glue pump to ensure a sealing effect of the supply. When excess solidified hot melt glue appears at the mounting hole position, the piston rod of the cylinder can be extended and retracted to drive the scraper to clean the outer wall of the mounting hole port. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0022] Figure 3 This is a top view of the overall structure of this utility model from an oblique direction;

[0023] Figure 4 This is a schematic diagram of the bottom structure of the present invention;

[0024] Figure 5 This is a front view of the discharge interface of this utility model.

[0025] In the diagram: 10. Base; 11. Feeding channel; 12. Heating channel; 13. Motor; 14. Shaft; 15. Sealed bearing; 16. Shaft rod; 17. Spiral blade; 18. Feeding port; 20. Protective cover; 21. Heating element; 30. Discharge interface; 31. Mounting hole; 32. Ramp; 40. Cylinder; 41. Connecting plate; 42. Scraper. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figures 1-5 A hot melt adhesive extrusion machine for convenient hot melt adhesive includes a horizontally positioned base 10. A feeding channel 11 is located at the upper end of the base 10, and the lower end of the outer wall of the feeding channel 11 is fixedly mounted to the surface of the base 10 via a bracket. A heating channel 12 is located at one open end of the feeding channel 11, and the end face of the heating channel 12 is tightly fitted to the end face of the feeding channel 11 and connected via a flange. A motor 13 is located above the base 10, and the lower end of the outer wall of the motor 13 is fixedly mounted to the upper end face of the base 10 via a bracket. A drive shaft 14 is located inside the motor 13, and one end of the shaft 14 extends outward through the interior of the motor 13. A sealing bearing 15 is located at the sealed end of the feeding channel 11, and the outer ring wall of the sealing bearing 15 penetrates the feeding channel. The sealing end of the feeding channel 11 is fixed by welding at the connection between the outer ring wall of the sealing bearing 15 and the sealing end of the feeding channel 11. A shaft 16 is installed through the inside of the sealing bearing 15, and the surface of the shaft 16 is interference-fitted with the inner ring wall of the sealing bearing 15. The outer end of the shaft 16 is fixedly assembled with the end face of the rotating shaft 14 of the motor 13 by a coupling. A spiral blade 17 is wound on the surface of the shaft 16, and the inner surface of the spiral blade 17 is welded to the outer wall of the shaft 16. The outer surface of the spiral blade 17 rotates and fits tightly against the inner wall of the feeding channel 11 and the inner wall of the heating channel 12, respectively. A feeding port 18 is opened at the upper end of the outer ring wall of the feeding channel 11, penetrating its interior. The motor 13 is a stepper motor and is connected to a 220V power strip in the room via a wire plug.

[0028] It should be further noted that the heating channel 12 is made of stainless steel, and a protective cover 20 made of ceramic material is provided on the outer ring wall of the heating channel 12. The inner ring wall of the protective cover 20 is fitted and fixed to the surface of the heating channel 12, which can prevent external objects from directly contacting the heating tube 21.

[0029] It should be further explained that a spiral electric heating tube 21 is wound around the outer wall of the heating channel 12. The surface of the electric heating tube 21 is in close contact with the surface of the heating channel 12. The two ends of the electric heating tube 21 are respectively provided with wiring ports, and the ends of the wiring ports extend outward through the protective cover 20. The electric heating tube 21 is a heating element that converts electrical energy into heat energy. It is mainly composed of a metal tube, a resistance wire, and an insulating filler. The working principle of the electric heating tube 21 is to use the heat generated by the resistance wire after it is energized to heat the metal tube, and then transfer the heat to the object being heated.

[0030] It should be further noted that the other end of the heating channel 12 is provided with a discharge port 30. One side of the discharge port 30 is fixed to the end face of the heating channel 12 by a flange. The center of the discharge port 30 is provided with a mounting hole 31 for connecting the glue pump. The mounting hole 31 is connected to the heating channel 12. The inner wall of the mounting hole 31 is a threaded surface.

[0031] It should be further noted that the discharge interface 30 is provided with a ramp 32 inside. One side of the ramp 32 is fixedly assembled with the inner wall of the discharge interface 30 by screws, and the ramp 32 is located directly below the mounting hole 31.

[0032] It should be further noted that a cylinder 40 is provided at the upper end of the discharge port 30. The surface of the cylinder 40 penetrates the interior of the discharge port 30. The connection between the cylinder 40 and the discharge port 30 is fixed by screws. A piston rod for extension and retraction is provided inside the cylinder 40. The lower end of the piston rod extends downward through the interior of the cylinder 40.

[0033] It should be further explained that a connecting plate 41 is provided at the lower end of the piston rod of the cylinder 40. The upper surface of the connecting plate 41 is fixed to the end of the piston rod by screws. A scraper 42 is provided at the lower end of the connecting plate 41. The upper end of the scraper 42 is welded and fixed to the surface of the connecting plate 41. One side of the connecting plate 41 and one side of the scraper 42 are both slidingly and tightly attached to the inner wall surface of the discharge interface 30. The scraper 42 is located directly above the mounting hole 31. The scraper 42 can level the outer end of the end face of the mounting hole 31 to avoid affecting the docking of the glue pump interface and the mounting hole 31.

[0034] Working method: When hot melt adhesive needs to be melted and extruded, first turn on the power of the heating tube 21 to preheat the heating tube 21 and heat part of the heating channel 12. Then, the hot melt adhesive particles are fed into the feeding channel 11 through the feeding port 18. Turn on the power of the motor 13. The motor 13 drives the shaft 16 to rotate through the rotating shaft 14, so that the spiral blade 17 is linked. Through the spiral feeding effect of the spiral blade 17, the hot melt adhesive particles are stably conveyed and sent to the heating channel 12. They are heated at high temperature to melt them and then discharged through the end of the heating channel 12.

[0035] Then, the external glue pump is threaded into the mounting hole 31 of the internal thread structure to ensure its sealing effect, so that the molten hot melt glue can enter the glue pump for pumping and feeding. After the glue pump is disassembled, the excess hot melt glue will overflow through the mounting hole 31 and solidify at the outer end of the port of the mounting hole 31. By extending and retracting the piston rod of the cylinder 40, the scraper 42 can scrape and clean the port of the mounting hole 31 to avoid affecting the reconnection of the glue pump.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hot melt adhesive machine for convenient hot melt adhesive extrusion, comprising a horizontally positioned base (10), characterized in that: The upper end of the base (10) is provided with a feeding channel (11), and the lower end of the outer wall of the feeding channel (11) is fixedly assembled to the surface of the base (10) by a bracket. A heating channel (12) is provided at the opening of one end of the feeding channel (11), and the end face of the heating channel (12) is in close contact with the end face of the feeding channel (11) and connected by a flange. A motor (13) is provided above the base (10), and the lower end of the outer wall of the motor (13) is fixedly assembled to the upper end face of the base (10) by a bracket. A drive shaft (14) is provided inside the motor (13), and one end of the drive shaft (14) extends outward through the interior of the motor (13). A sealed bearing (15) is provided at the sealing end of the feeding channel (11), and the outer ring wall of the sealed bearing (15) penetrates the feeding channel. The sealing end of the channel (11) is fixed by welding at the connection between the outer ring wall of the sealing bearing (15) and the sealing end of the feeding channel (11). A shaft (16) is provided through the inside of the sealing bearing (15), and the surface of the shaft (16) is press-fitted with the inner ring wall of the sealing bearing (15). The outer end of the shaft (16) is fixedly assembled with the end face of the rotating shaft (14) of the motor (13) by a coupling. A spiral blade (17) is wound on the surface of the shaft (16), and the inner surface of the spiral blade (17) is welded to the outer wall of the shaft (16). The outer surface of the spiral blade (17) is rotated and tightly attached to the inner wall of the feeding channel (11) and the inner wall of the heating channel (12). A feeding port (18) is provided at the upper end of the outer ring wall of the feeding channel (11) that penetrates its interior.

2. The hot melt adhesive machine for convenient hot melt adhesive extrusion according to claim 1, characterized in that: The heating channel (12) is made of stainless steel, and a protective cover (20) made of ceramic material is provided on the outer ring wall of the heating channel (12). The inner ring wall of the protective cover (20) is sleeved and fixed to the surface of the heating channel (12).

3. The hot melt adhesive machine for convenient hot melt adhesive extrusion according to claim 2, characterized in that: The outer wall of the heating channel (12) is wound with a spiral structure electric heating tube (21). The surface of the electric heating tube (21) is in close contact with the surface of the heating channel (12). The two ends of the electric heating tube (21) are respectively provided with wiring ports, and the ends of the wiring ports extend outward through the protective cover (20).

4. The hot melt adhesive machine for convenient hot melt adhesive extrusion according to claim 1, characterized in that: The other end of the heating channel (12) is provided with a discharge port (30). One side of the discharge port (30) is fixed to the end face of the heating channel (12) by a flange. The center of the discharge port (30) is provided with a mounting hole (31) for connecting the glue pump. The mounting hole (31) is connected to the heating channel (12). The inner wall of the mounting hole (31) is a threaded surface.

5. A hot melt adhesive machine for convenient hot melt adhesive extrusion according to claim 4, characterized in that: The discharge port (30) is provided with a ramp (32) inside. One side of the ramp (32) is fixedly assembled with the inner wall of the discharge port (30) by screws, and the ramp (32) is located directly below the mounting hole (31).

6. A hot melt adhesive machine for convenient hot melt adhesive extrusion according to claim 5, characterized in that: A cylinder (40) is provided at the upper end of the discharge port (30). The surface of the cylinder (40) penetrates the interior of the discharge port (30). The connection between the cylinder (40) and the discharge port (30) is fixed by screws. A piston rod for extension and retraction is provided inside the cylinder (40). The lower end of the piston rod extends downward through the interior of the cylinder (40).

7. A hot melt adhesive machine for convenient hot melt adhesive extrusion according to claim 6, characterized in that: The piston rod of the cylinder (40) is provided with a connecting plate (41) at the lower end. The upper surface of the connecting plate (41) is fixed to the end of the piston rod by screws. The lower end of the connecting plate (41) is provided with a scraper (42). The upper end of the scraper (42) is welded and fixed to the surface of the connecting plate (41). One side of the connecting plate (41) and one side of the scraper (42) are both slidably attached to the inner wall of the discharge port (30), and the scraper (42) is located directly above the mounting hole (31).

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