Device for preventing solidification of hot melt adhesive for hot melt adhesive machine

Abstract

The utility model relates to the technical field of heating devices for hot melt glue machines, and discloses a hot melt glue solidification preventing device for a hot melt glue machine, which comprises a box body structure, the top end of the box body structure is fixedly provided with a feed port and a motor, and the output end of the motor is connected with a stirring unit arranged in the box body structure. The stirring unit comprises a connecting shaft fixedly connected to the output end of the feeding port, and a first heating pipe is fixedly arranged on the upper side of the interior of the box body structure; the lower end of the box body structure is integrally and fixedly connected with a discharging pipe, and an electric heating pipe is arranged in the discharging pipe. According to the device for preventing the hot melt adhesive from being solidified for the hot melt adhesive machine, the hot melt adhesive can be stirred and uniformly heated, the hot melt adhesive can be prevented from being solidified during discharging by arranging the electric heating pipe in the discharging pipe, and the problem that most heating devices for existing hot melt adhesive machines are difficult to prevent solidification blockage caused by insufficient heating during discharging of the hot melt adhesive is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of heating devices for hot melt glue machines, specifically a device for preventing hot melt glue from solidifying. Background Technology

[0002] Hot melt adhesive machines are mainly used for automated applications of hot melt adhesive spraying, scraping, rolling, coating, and dispensing. They are widely used in industries such as household goods, automobiles, packaging, coating and laminating, and bookbinding. Hot melt adhesive machines require heating the hot melt adhesive raw material particles to melt them to a certain temperature and transform them into a flowable liquid with a certain viscosity. Therefore, a heating device is necessary within the hot melt adhesive machine.

[0003] However, most hot melt glue machines on the market currently have poor heating uniformity for hot melt glue, making it inconvenient to stir the glue to ensure even heating. Furthermore, most of them cannot prevent the hot melt glue from solidifying and clogging due to insufficient heating during discharge, thus having certain defects in use. Therefore, we propose a device for hot melt glue machines to prevent hot melt glue from solidifying, in order to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a device for preventing hot melt adhesive from solidifying in a hot melt adhesive machine, so as to solve the problems mentioned in the background art: the existing hot melt adhesive heating devices for hot melt adhesive machines have poor heating uniformity, are inconvenient to stir the adhesive to make the heating uniform, and are mostly difficult to prevent the hot melt adhesive from solidifying and clogging due to insufficient heating when discharging.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a device for preventing hot melt adhesive from solidifying in a hot melt adhesive machine, comprising a box structure, wherein a feeding port and a motor are fixedly installed at the top of the box structure, and the output end of the motor is connected to a stirring unit disposed inside the box structure, wherein the stirring unit includes a connecting shaft fixedly connected to the output end of the feeding port, a first heating tube is fixedly disposed on the upper side of the inside of the box structure, and a second heating tube is fixedly disposed on the lower side of the inside of the box structure;

[0006] The lower end of the box structure is integrally and fixedly connected to a discharge pipe, and an electric heating tube is installed inside the discharge pipe. A first patch temperature sensor and a second patch temperature sensor are respectively installed on the inner surface of the box structure and the inner surface of the discharge pipe. A power controller is installed on the outer end face of the box structure.

[0007] As a preferred embodiment of this utility model, the bottom of the box structure is funnel-shaped, and the first patch-type temperature sensor is attached to the inner surface of the funnel-shaped structure.

[0008] As a preferred embodiment of this utility model, the feeding port is open, and a dust plug is provided inside the feeding port to seal it.

[0009] As a preferred embodiment of the present invention, the stirring unit further includes a connecting frame fixedly connected to the lower end of the connecting shaft, and a stirring frame is fixedly provided at the lower end of the connecting frame, and the stirring frame is symmetrically arranged about the axis of the connecting shaft.

[0010] As a preferred technical solution of this utility model, the second heating tube and the first heating tube are respectively arranged on the inner and outer sides of the stirring rack, and the second heating tube and the first heating tube are distributed at equal angles about the axis of the connecting shaft inside the box structure and play a role in uniformly heating the hot melt adhesive.

[0011] As a preferred embodiment of this utility model, the discharge pipe has an annular groove structure inside, and the heating element is spirally arranged inside the discharge pipe through the annular groove structure. The lower end of the discharge pipe is connected to the feed port of the hot melt glue machine.

[0012] As a preferred embodiment of this utility model, both the first and second patch temperature sensors are connected to the power controller via a cable structure, and the first and second patch temperature sensors respectively detect the internal temperature of the housing structure and the discharge pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the hot melt glue machine uses a device to prevent hot melt glue from solidifying, which can stir and heat the hot melt glue evenly, and by setting an electric heating tube inside the discharge pipe, it can prevent the hot melt glue from solidifying at the discharge point, thus solving the problem that most existing hot melt glue heating devices are difficult to prevent the hot melt glue from solidifying and clogging due to insufficient heating at the discharge point.

[0014] 1. The second heating tube and the first heating tube are distributed at equal angles to the axis of the connecting shaft inside the box structure, which can uniformly heat the hot melt adhesive. At the same time, the connecting shaft is driven to rotate by the motor, which drives the stirring rack to rotate inside the box structure through the connecting frame, thereby stirring the hot melt adhesive in the box structure, so that the hot melt adhesive is heated more evenly inside the box structure.

[0015] 2. The heating element is spirally arranged inside the discharge pipe, and a second patch temperature sensor is attached to the inner surface of the discharge pipe. The second patch temperature sensor can detect the temperature inside the discharge pipe and send the data to the power controller. The power controller can control the heating element to be energized to heat the discharge pipe, preventing the hot melt adhesive from solidifying and clogging due to temperature drop as it flows through the discharge pipe. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention in cross-section.

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the present invention from another perspective in a cross-sectional state;

[0019] Figure 4 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0020] In the diagram: 1. Box structure; 2. Feed port; 3. Motor; 400. Stirring unit; 401. Connecting shaft; 402. Connecting frame; 403. Stirring frame; 5. First heating tube; 6. Second heating tube; 7. Discharge pipe; 8. First surface mount temperature sensor; 9. Second surface mount temperature sensor; 10. Heating element; 11. Power controller; 12. Dust plug. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-4 This utility model provides a technical solution: a device for preventing hot melt adhesive from solidifying in a hot melt adhesive machine, comprising a housing structure 1, a feeding port 2 and a motor 3 fixedly installed at the top of the housing structure 1, and the output end of the motor 3 connected to a stirring unit 400 disposed inside the housing structure 1, such as... Figure 1 and Figure 2 As shown, the feeding port 2 is open, and a dust plug 12 is fitted inside the feeding port 2 to seal it. By removing the dust plug 12 from the feeding port 2, hot melt adhesive material can be added into the housing structure 1 through the feeding port 2. The mixing unit 400 includes a connecting shaft 401 fixedly connected to the output end of the feeding port 2. Figure 1 and Figure 3 As shown, the stirring unit 400 also includes a connecting frame 402 fixedly connected to the lower end of the connecting shaft 401, and a stirring frame 403 is fixedly provided at the lower end of the connecting frame 402. The stirring frame 403 is symmetrically arranged about the axis of the connecting shaft 401. The stirring unit 400 is driven to rotate by the motor 3, which can stir the hot melt adhesive inside the box structure 1.

[0023] Specific examples Figure 1 and Figure 3 As shown, a first heating pipe 5 is fixedly installed on the upper side of the inner side of the box structure 1, and a second heating pipe 6 is fixedly installed on the lower side of the inner side of the box structure 1. The second heating pipe 6 and the first heating pipe 5 are respectively installed on the inner and outer sides of the mixing rack 403. Since the second heating pipe 6 and the first heating pipe 5 are distributed at equal angles about the axis of the connecting shaft 401 inside the box structure 1, they can uniformly heat the hot melt adhesive. At the same time, the mixing unit 400 stirs the hot melt adhesive, so that the hot melt adhesive is heated evenly inside the box structure 1.

[0024] Specific examples Figure 1 and Figure 4 As shown, the lower end of the housing structure 1 is integrally and fixedly connected to a discharge pipe 7. The lower end of the discharge pipe 7 is connected to the inlet of the hot melt glue machine. An annular groove structure is formed inside the discharge pipe 7, and an electric heating element 10 is spirally arranged inside the discharge pipe 7 through this annular groove structure. The electric heating element 10 can heat the discharge pipe 7 to prevent the hot melt glue from solidifying due to temperature drop as it flows through the discharge pipe 7. A first patch temperature sensor 8 and a second patch temperature sensor 9 are respectively attached to the inner surface of the housing structure 1 and the inner surface of the discharge pipe 7. The bottom is funnel-shaped to facilitate material feeding. A power controller 11 is provided on the outer end face of the box structure 1. The first surface-mount temperature sensor 8 and the second surface-mount temperature sensor 9 are both connected to the power controller 11 through a cable structure. The first surface-mount temperature sensor 8 and the second surface-mount temperature sensor 9 can respectively detect the internal temperature of the box structure 1 and the discharge pipe 7. The first surface-mount temperature sensor 8 and the second surface-mount temperature sensor 9 can be ZTM11F surface-mount platinum resistance temperature sensors and are evenly arranged inside the box structure 1 and the discharge pipe 7.

[0025] The working principle of this utility model is as follows: When using the device to prevent hot melt adhesive from solidifying in this hot melt adhesive machine, firstly, the dust plug 12 is pulled out from the feeding port 2. Hot melt adhesive raw materials can then be fed into the housing structure 1 through the feeding port 2. The second heating tube 6 and the first heating tube 5 are distributed at equal angles to the axis of the connecting shaft 401 inside the housing structure 1, providing uniform heating for the hot melt adhesive. Simultaneously, the motor 3 drives the connecting shaft 401 to rotate, causing the connecting shaft 401 to drive the stirring frame 403 to rotate inside the housing structure 1 via the connecting frame 402, thereby stirring the hot melt adhesive in the housing structure 1. This ensures that the hot melt adhesive is uniformly heated within the housing structure 1. Specifically, as shown... Figure 1 and Figure 4As shown, a first patch temperature sensor 8 and a second patch temperature sensor 9 are respectively attached to the inner surface of the housing structure 1 and the inner surface of the discharge pipe 7. The first patch temperature sensor 8 and the second patch temperature sensor 9 can detect the internal temperature of the housing structure 1 and the discharge pipe 7 respectively, and send the data to the power controller 11. The power controller 11 can control the heating element 10 to be energized to heat the discharge pipe 7, so as to prevent the hot melt adhesive from solidifying and blocking due to the temperature drop when flowing through the discharge pipe 7.

[0026] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for preventing hot melt adhesive from solidifying in a hot melt adhesive machine, comprising a housing structure (1), characterized in that: The top of the box structure (1) is fixedly installed with a feeding port (2) and a motor (3), and the output end of the motor (3) is connected to a stirring unit (400) set inside the box structure (1). The stirring unit (400) includes a connecting shaft (401) fixedly connected to the output end of the feeding port (2). A first heating tube (5) is fixedly installed on the upper side of the inside of the box structure (1), and a second heating tube (6) is fixedly installed on the lower side of the inside of the box structure (1). The lower end of the box structure (1) is integrally fixedly connected to the discharge pipe (7), and the discharge pipe (7) is provided with an electric heating tube (10). The inner surface of the box structure (1) and the inner surface of the discharge pipe (7) are respectively provided with a first patch temperature sensor (8) and a second patch temperature sensor (9). The outer end face of the box structure (1) is provided with a power controller (11).

2. The device for preventing hot melt adhesive from solidifying in a hot melt adhesive machine according to claim 1, characterized in that: The bottom of the box structure (1) is funnel-shaped, and the first patch temperature sensor (8) is attached to the inner surface of the funnel-shaped structure.

3. The device for preventing hot melt adhesive from solidifying in a hot melt adhesive machine according to claim 1, characterized in that: The feeding port (2) is open, and a dust plug (12) is provided inside the feeding port (2) to seal the feeding port (2).

4. The device for preventing hot melt adhesive from solidifying in a hot melt adhesive machine according to claim 1, characterized in that: The stirring unit (400) further includes a connecting frame (402) fixedly connected to the lower end of the connecting shaft (401), and a stirring frame (403) is fixedly provided at the lower end of the connecting frame (402), and the stirring frame (403) is symmetrically arranged about the axis of the connecting shaft (401).

5. The device for preventing hot melt adhesive from solidifying in a hot melt adhesive machine according to claim 4, characterized in that: The second heating tube (6) and the first heating tube (5) are respectively arranged on the inner and outer sides of the stirring rack (403), and the second heating tube (6) and the first heating tube (5) are distributed at equal angles about the axis of the connecting shaft (401) inside the box structure (1) and play a role in uniformly heating the hot melt adhesive.

6. The device for preventing hot melt adhesive from solidifying in a hot melt adhesive machine according to claim 1, characterized in that: The discharge pipe (7) has an annular groove structure inside, and the heating tube (10) is spirally arranged inside the discharge pipe (7) through the annular groove structure. The lower end of the discharge pipe (7) is connected to the feed port of the hot melt glue machine.

7. The device for preventing hot melt adhesive from solidifying in a hot melt adhesive machine according to claim 2, characterized in that: The first surface mount temperature sensor (8) and the second surface mount temperature sensor (9) are both connected to the power controller (11) via a cable structure, and the first surface mount temperature sensor (8) and the second surface mount temperature sensor (9) respectively detect the internal temperature of the box structure (1) and the discharge pipe (7).

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