A raw material melting device for hot melt adhesive production

Abstract

This utility model relates to the field of hot melt adhesive production technology, specifically disclosing a raw material melting device for hot melt adhesive production. The device includes a tank, with a mixing component located both inside and outside the tank. The mixing component includes a feeding cylinder extending through the upper right side of a top cover. A rotating rod is fixedly connected to the output end of a drive motor, penetrating the top cover. A fixed disc is fixedly connected to the upper outer side of the rotating rod. Guide strips are fixedly connected to the upper side of the fixed disc in a circular array. Stirring blades are fixedly connected to the lower outer side of the rotating rod in a circular array. The fixed disc collects additives and disperses them after the fixed disc rotates. Because the fixed disc collects and disperses additives through the guide strips during rotation, it effectively prevents additives from accumulating inside the tank and failing to react in time, thus ensuring the processing quality of the hot melt adhesive.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive production technology, and in particular to a raw material melting device for hot melt adhesive production. Background Technology

[0002] Hot melt adhesives are solid at room temperature, but become viscous liquid when heated (65-180℃). They solidify rapidly upon cooling and are chemically stable. They are environmentally friendly adhesives, characterized by being non-toxic, solvent-free, resistant to high and low temperatures (-40℃ to 85℃), and easy to store. EVA hot melt adhesives use ethylene-vinyl acetate copolymer as a base material, with tackifiers (rosin, petroleum resin), viscosity modifiers (paraffin wax), and antioxidants. PUR hot melt adhesives, on the other hand, are reactive polyurethanes that require moisture curing, have higher bonding strength, and are suitable for high-end applications.

[0003] There are several methods for heating hot melt adhesive. Heating with a hot melt adhesive machine is the most common and efficient method. The adhesive is heated to 160-180℃ (above its softening point) in a melting tank, and then an air pump delivers the melted adhesive to a glue gun for application. This method is widely used in industrial production, ensuring controllable temperature and convenient operation. A hairdryer can be used for auxiliary heating, allowing the adhesive to soften or melt by prolonged exposure to heat (above 120℃). However, this method is less efficient and suitable for small areas or emergency situations.

[0004] In the existing technology, in order to improve the processing efficiency of hot melt adhesive raw materials during the heating process, a certain proportion of additives are added. However, additives that do not react in time will cause reactions or physical conflicts at high temperatures, resulting in black spots or uneven color in the hot melt adhesive. Summary of the Invention

[0005] The purpose of this invention is to provide a raw material melting device for hot melt adhesive production, which can collect additives and disperse them through a fixed plate and guide strip, thereby solving the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a raw material melting device for hot melt adhesive production, comprising a tank and a top cover disposed on the upper side of the tank, a controller disposed on the left side of the outer surface of the tank, a drive motor disposed on the upper side of the top cover, and a mixing component disposed on both the inner and outer sides of the tank, the mixing component comprising a feeding cylinder disposed through the upper right side of the top cover;

[0007] The output end of the drive motor is fixedly connected to a rotating rod, which passes through the top cover. A fixed plate is fixedly connected to the upper outer side of the rotating rod. Guide strips are fixedly connected to the upper side of the fixed plate in a circular array. Stirring blades are fixedly connected to the lower outer side of the rotating rod in a circular array. A feed inlet is opened through the upper right side of the top cover. A hollow cavity is opened inside the side wall of the tank. A heating wire is installed inside the hollow cavity.

[0008] Preferably, the guide bar is arc-shaped, the bottom end of the heating wire is located on the right side of the controller, the feeding cylinder is connected to the tank body, and the feeding cylinder is located above and to the right of the fixed plate.

[0009] Preferably, the inner and outer sides of the tank are provided with a feeding component, and the feeding component includes a pusher plate fixedly connected to the upper half of the outer side of the rotating rod.

[0010] Preferably, the push plate is located above the fixed plate, a fixed plate is fixedly connected to the right side of the upper end of the top cover, a movable plate is slidably connected to the outside of the fixed plate, a sliding groove is provided through the upper side of the movable plate, the movable plate is slidably connected to the outside of the fixed plate through the sliding groove, a first limiting rod is fixedly connected to the left and right sides of the inside of the sliding groove, the fixed plate is slidably sleeved on the outside of the first limiting rod, and a first pressure spring is fixedly connected between the left side of the inside of the sliding groove and the left side of the fixed plate.

[0011] Preferably, the right side of the push disk is concave, and after the push disk rotates, it presses against the left side of the movable plate, and the right side of the movable plate is inclined.

[0012] Preferably, the inclined surface of the movable plate has a roller in rolling and pressing contact, a connecting rod is sleeved on the outside of the roller, a sealing column is fixedly connected to the top of the connecting rod, a limiting funnel is fixedly connected inside the feeding cylinder, and the sealing column is located above the limiting funnel.

[0013] Preferably, the connecting rod is bent and passes through the limiting funnel. The diameter of the limiting funnel is larger than the diameter of the connecting rod, and the sealing column moves downward and embeds itself inside the limiting funnel.

[0014] Preferably, a second limiting rod is fixedly connected to the upper side of the sealing column, a positioning cylinder is fixedly connected inside the feeding cylinder, the positioning cylinder is located above the limiting funnel, the upper part of the second limiting rod is slidably connected inside the positioning cylinder, and a second pressure spring is fixedly connected between the upper inner side of the positioning cylinder and the top end of the second limiting rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The additives are collected by a fixed plate and dispersed after the plate rotates. As the fixed plate collects the additives and disperses them during the rotation, it effectively prevents the additives from accumulating in one place after entering the tank, which would prevent the additives from reacting in time, thus ensuring the processing quality of the hot melt adhesive.

[0017] 2. The additive is discharged by moving the sealing column up and down, and the output of the additive is controlled. Since the position of the sealing column can be adjusted during the rotation of the push plate, the additive inside the feed cylinder is discharged in an orderly and timed manner to ensure the dispersion efficiency of the additive. At the same time, the sealing column can hit the internal components of the feed cylinder during repeated movement, making it easier for the additive to be discharged. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a schematic diagram of a half-section of the present invention;

[0021] Figure 3 This is a half-sectional structural diagram of the feeding cylinder of this utility model;

[0022] Figure 4 This is a half-sectional structural diagram of the limiting funnel of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Tank body; 11. Top cover; 12. Controller; 13. Drive motor; 2. Mixing component; 21. Feeding cylinder; 22. Rotating rod; 23. Fixed plate; 24. Guide bar; 25. Stirring blade; 26. Feed inlet; 27. Hollow cavity; 28. Heating wire; 3. Feeding component; 31. Pushing plate; 32. Fixed plate; 33. Movable plate; 34. Slide groove; 35. First limit rod; 36. First pressure spring; 37. Roller; 38. Connecting rod; 39. Limiting funnel; 391. Sealing column; 4. Positioning cylinder; 5. Second pressure spring; 6. Second limit rod. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4 A raw material melting device for hot melt adhesive production includes a tank body 1 and a top cover 11 disposed on the upper side of the tank body 1. A controller 12 is disposed on the left side of the outer surface of the tank body 1, and a drive motor 13 is disposed on the upper side of the top cover 11. A mixing component 2 is disposed on both the inner and outer sides of the tank body 1. The mixing component 2 includes a feeding cylinder 21 that passes through the upper right side of the top cover 11.

[0028] A rotating rod 22 is fixedly connected to the output end of the drive motor 13. The rotating rod 22 passes through the top cover 11. A fixed plate 23 is fixedly connected to the upper outer side of the rotating rod 22. Guide strips 24 are fixedly connected to the upper side of the fixed plate 23 in a circular array. Stirring blades 25 are fixedly connected to the lower outer side of the rotating rod 22 in a circular array. A feed inlet 26 is opened through the upper right side of the top cover 11. A hollow cavity 27 is opened inside the side wall of the tank 1. A heating wire 28 is installed inside the hollow cavity 27.

[0029] The guide bar 24 is arc-shaped, the bottom end of the heating wire 28 is located on the right side of the controller 12, the feeding cylinder 21 is connected to the tank body 1, and the feeding cylinder 21 is located above and to the right of the fixed plate 23.

[0030] The inner and outer sides of the tank body 1 are equipped with feeding components 3.

[0031] By adopting the above technical solution, the heating wire 28 inside the hollow cavity 27 is controlled by the controller 12 to operate and complete the heating of the inside of the tank 1. Then, the raw material is poured into the tank 1 through the feed port 26 above the top cover 11. Subsequently, the drive motor 13 is started to drive the rotating rod 22 to rotate slowly, so that the rotating rod 22 drives the stirring blade 25 to stir the heated raw material inside the tank 1. During this process, the feeding cylinder 21, in conjunction with the feeding component 3, delivers the additive into the tank 1. As the additive inside the feeding cylinder 21 is discharged, the rotating rod 22 drives the stirring blade 25 to stir the raw material inside the tank 1. The fixed plate 23 rotates and collects the additives that fall from the inside of the feed cylinder 21. The guide strip 24 on the upper side of the fixed plate 23 separates the additives. After the fixed plate 23 rotates, the additives above the fixed plate 23 are thrown out, so that the additives are mixed with the raw materials. Since the fixed plate 23 collects the additives through the guide strip 24 and disperses them during the rotation process, it effectively avoids the additives from accumulating in one place after entering the tank 1 and failing to react in time, thereby ensuring the processing quality of the hot melt adhesive.

[0032] Specifically, such as Figure 4 As shown, the feeding component 3 includes a pusher disc 31 fixedly connected to the upper half of the outer side of the rotating rod 22.

[0033] The push plate 31 is located above the fixed plate 23. A fixed plate 32 is fixedly connected to the upper right side of the top cover 11. A movable plate 33 is slidably connected to the outer side of the fixed plate 32. A sliding groove 34 is provided through the upper side of the movable plate 33. The movable plate 33 is slidably connected to the outer side of the fixed plate 32 through the sliding groove 34. A first limiting rod 35 is fixedly connected to both the left and right sides inside the sliding groove 34. The fixed plate 32 is slidably sleeved on the outer side of the first limiting rod 35. A first pressure spring 36 is fixedly connected between the left side inside the sliding groove 34 and the left side of the fixed plate 32.

[0034] The right side of the push plate 31 is concave. After the push plate 31 rotates, it presses against the left side of the movable plate 33. The right side of the movable plate 33 is inclined.

[0035] The inclined surface of the movable plate 33 has a roller 37 in rolling and pressing contact. A connecting rod 38 is sleeved on the outside of the roller 37. A sealing column 391 is fixedly connected to the top of the connecting rod 38. A limiting funnel 39 is fixedly connected inside the feeding cylinder 21. The sealing column 391 is located on the upper side of the limiting funnel 39.

[0036] The connecting rod 38 is bent and passes through the limiting funnel 39. The diameter of the limiting funnel 39 is larger than the diameter of the connecting rod 38. After the sealing column 391 moves downward, it is embedded inside the limiting funnel 39.

[0037] A second limiting rod 6 is fixedly connected to the upper side of the sealing column 391. A positioning cylinder 4 is fixedly connected inside the feeding cylinder 21. The positioning cylinder 4 is located above the limiting funnel 39. The upper part of the second limiting rod 6 is slidably connected inside the positioning cylinder 4. A second pressure spring 5 is fixedly connected between the upper side of the inside of the positioning cylinder 4 and the top of the second limiting rod 6.

[0038] By adopting the above technical solution, the rotating rod 22 will also drive the pushing disk 31 to rotate during rotation. As the recess on the outer side of the pushing disk 31 aligns with the position of the movable plate 33, the movable plate 33, which is sleeved on the outer side of the fixed plate 32 through the sliding groove 34, is pushed by the elastic force of the first pressure spring 36 inside the sliding groove 34. During the process of the movable plate 33 aligning with the recess on the outer side of the pushing disk 31, the connecting rod 38 rolls on the inclined surface of the movable plate 33 through the roller 37 and rolls from the high point to the low point of the inclined surface. At this time, the second pressure spring 5 inside the positioning cylinder 4 pushes the second limiting rod 6, so that the second limiting rod 6 pushes the sealing column 391, and at the same time, the sealing column 391 limits the funnel 39. When the roller 37 moves to the highest point of the inclined plane, the connecting rod 38 is lifted by the inclined plane of the movable plate 33, causing the sealing column 391 to move above the limiting funnel 39 and squeeze the second pressure spring 5. At this time, there is a gap between the sealing column 391 and the limiting funnel 39, so that the additive inside the feeding cylinder 21 is discharged through the limiting funnel 39. Since the position of the sealing column 391 can be adjusted during the rotation of the push plate 31, the additive inside the feeding cylinder 21 is discharged in an orderly and timed manner to ensure the dispersion efficiency of the additive. At the same time, the sealing column 391 can hit the components inside the feeding cylinder 21 during repeated movement, making it easier for the additive to be discharged.

[0039] Working principle: The controller 12 controls the operation of the heating wire 28 inside the hollow cavity 27. Then, the raw material is poured into the tank 1 through the feed inlet 26 above the top cover 11. Next, the drive motor 13 is started, driving the rotating rod 22 to slowly rotate and stir the heated raw material. As the recess on the outer side of the push plate 31 aligns with the movable plate 33, the first pressure spring 36 inside the slide 34 pushes the movable plate 33. At this time, the connecting rod 38 rolls on the inclined surface of the movable plate 33 via the roller 37, rolling from the high point to the low point of the inclined surface. Subsequently, the second pressure spring 5 inside the positioning cylinder 4 pushes the second limiting rod 6, causing... The sealing column 391 blocks the limiting funnel 39. When the roller 37 moves to the highest point of the inclined plane, the connecting rod 38 is lifted by the inclined plane of the movable plate 33, so that the sealing column 391 will also move on the upper side of the limiting funnel 39. At this time, there is a gap between the sealing column 391 and the limiting funnel 39. The additive inside the feeding cylinder 21 is discharged through the limiting funnel 39 and collected by the fixed plate 23. The guide strip 24 on the upper side of the fixed plate 23 will separate the additive. After the fixed plate 23 rotates, it will throw out the additive above the fixed plate 23, so that the additive mixes with the raw material.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A raw material melting device for hot melt adhesive production, comprising a tank (1) and a top cover (11) disposed on the upper side of the tank (1), wherein a controller (12) is disposed on the left side of the outer surface of the tank (1), and a drive motor (13) is disposed on the upper side of the top cover (11), characterized in that: The tank (1) is provided with a mixing component (2) on both the inner and outer sides. The mixing component (2) includes a feeding cylinder (21) that passes through the upper right side of the top cover (11). The output end of the drive motor (13) is fixedly connected to a rotating rod (22), which passes through the top cover (11). A fixed plate (23) is fixedly connected to the upper outer side of the rotating rod (22). A guide strip (24) is fixedly connected to the upper side of the fixed plate (23) in a circular array. A stirring blade (25) is fixedly connected to the lower outer side of the rotating rod (22) in a circular array. A feed inlet (26) is opened through the upper right side of the top cover (11). A hollow cavity (27) is opened inside the side wall of the tank (1). A heating wire (28) is installed inside the hollow cavity (27).

2. The raw material melting device for hot melt adhesive production according to claim 1, characterized in that: The guide bar (24) is arc-shaped, the bottom end of the heating wire (28) is located on the right side of the controller (12), the feeding cylinder (21) is connected to the tank (1), and the feeding cylinder (21) is located above the right side of the fixed plate (23).

3. The raw material melting device for hot melt adhesive production according to claim 1, characterized in that: The inner and outer sides of the tank (1) are provided with a feeding component (3), and the feeding component (3) includes a pusher plate (31) fixedly connected to the upper half of the outer side of the rotating rod (22).

4. The raw material melting device for hot melt adhesive production according to claim 3, characterized in that: The push plate (31) is located on the upper side of the fixed plate (23). A fixed plate (32) is fixedly connected to the upper right side of the top cover (11). A movable plate (33) is slidably connected to the outer side of the fixed plate (32). A sliding groove (34) is opened through the upper side of the movable plate (33). The movable plate (33) is slidably connected to the outer side of the fixed plate (32) through the sliding groove (34). A first limiting rod (35) is fixedly connected to the left and right sides inside the sliding groove (34). The fixed plate (32) is slidably sleeved on the outer side of the first limiting rod (35). A first pressure spring (36) is fixedly connected between the left side inside the sliding groove (34) and the left side of the fixed plate (32).

5. The raw material melting device for hot melt adhesive production according to claim 4, characterized in that: The right side of the push plate (31) is concave. After the push plate (31) rotates, it presses against the left side of the movable plate (33). The right side of the movable plate (33) is inclined.

6. The raw material melting device for hot melt adhesive production according to claim 5, characterized in that: The inclined surface of the movable plate (33) is in rolling and pressing contact with a roller (37). A connecting rod (38) is sleeved on the outside of the roller (37). A sealing column (391) is fixedly connected to the top of the connecting rod (38). A limiting funnel (39) is fixedly connected inside the feeding cylinder (21). The sealing column (391) is located on the upper side of the limiting funnel (39).

7. The raw material melting device for hot melt adhesive production according to claim 6, characterized in that: The connecting rod (38) is bent and passes through the limiting funnel (39). The diameter of the limiting funnel (39) is larger than the diameter of the connecting rod (38). The sealing column (391) moves downward and embeds itself inside the limiting funnel (39).

8. The raw material melting device for hot melt adhesive production according to claim 7, characterized in that: The upper side of the plugging column (391) is fixedly connected with a second limiting rod (6), the inside of the feeding cylinder (21) is fixedly connected with a positioning cylinder (4), the positioning cylinder (4) is located on the upper side of the limiting funnel (39), the upper part of the second limiting rod (6) is slidingly connected in the inside of the positioning cylinder (4), and the inside of the positioning cylinder (4) is fixedly connected with a second pressure spring (5) between the top end of the second limiting rod (6).

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