Hopper dryer

Abstract

The utility model relates to a hopper drying machine which comprises a hopper main body and a barrel body, the barrel body capable of turning backwards is installed at the upper end of the hopper main body, a heating barrel is installed at the rear end of the hopper main body, a fan is installed at an air inlet in the lower portion of the heating barrel, and a downward blowing air inlet pipe is installed at an air outlet in the upper portion of the heating barrel. One end of the downward blowing air inlet pipe extends into the barrel body and extends to the hopper body, and an electric control box is fixedly installed on one side of the barrel body and located in front of the draught fan. The heating barrel and the electric control box turn over along with the barrel body, later maintenance and replacement are simplified, and the double-layer buffering structure is further arranged so that impact deformation of the barrel body and the hopper body can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of dryers, in particular to a hopper dryer. Background Art

[0002] A dryer is a mechanical device that uses heat energy to reduce the moisture content of materials. It is used to dry materials. The dryer heats the material to vaporize the moisture (generally water or other volatile liquid components) in the material to obtain solid materials that meet the specified moisture content.

[0003] In traditional dryers, hot air is blown in from the bottom of the hopper, and then blown across the surface of the plastic particles in the barrel through a ventilation bracket with mesh holes, exchanging heat with the plastic particles, and finally discharged from the dryer from the top elbow; the fan of this dryer is on the upper part of the heating barrel, and the heating barrel is fixedly installed on the lower hopper body. The heating barrel occupies the right side of the dryer. When it is installed in an injection molding machine with electric pre-plasticizing function or a fully electric injection molding machine, it is generally necessary to configure a heightened support to avoid interference with the sheet metal structure of the injection molding machine; and the electric control box is fixedly installed on the heating barrel, and the temperature of the heating barrel will affect the service life of the electrical components in the electric control box. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a hopper dryer, in which the heating barrel and the electric control box are arranged independently, so as to ensure that the lower space on the right side of the front of the dryer is completely open, and the overall aesthetics of the dryer is improved while the structural design is more compact, so that it can be directly adapted to the sheet metal structure of an injection molding machine with an electric pre-plasticizing function or a full-electric injection molding machine without adding a heightening support, and the temperature influence of the heating barrel on the electric control box is effectively avoided, thereby effectively improving the working life of the electrical components.

[0005] The utility model solves the technical problem by adopting the following technical solution: providing a hopper dryer, comprising a hopper main body and a barrel body, wherein a barrel body which can be flipped backwards is installed on the upper end of the hopper main body, a heating barrel is installed on the rear end of the hopper main body, a fan is installed at the air inlet of the lower part of the heating barrel, a downward blowing air inlet pipe is installed at the air outlet of the upper part of the heating barrel, one end of the downward blowing air inlet pipe extends into the barrel body and extends to the hopper main body, and an electric control box is fixedly installed on one side of the barrel body in front of the fan.

[0006] As a supplement to the technical solution described in the utility model, a lower hinge is installed on the rear side of the upper end of the hopper body, and an upper hinge is installed on the rear side of the lower end of the barrel body. The upper hinge is fixedly connected to the bottom of the heating barrel, and the upper hinge and the lower hinge are rotatably connected through a hinge pin, and a torsion spring is arranged at the hinge pin.

[0007] As a supplement to the technical solution of the present utility model, a compression spring is further arranged between the upper hinge and the lower hinge, and the compression spring is used to absorb the inertial impact when the barrel body is opened.

[0008] As a supplement to the technical solution of the present utility model, a plurality of strong buckles are arranged around the circumference of the edge of the upper port of the hopper main body, and the strong buckles are used to press the lower edge of the barrel body.

[0009] As a supplement to the technical solution of the present utility model, a strip-shaped or circular observation window is vertically arranged at the front end of the barrel body.

[0010] As a supplement to the technical solution of the present utility model, a support is installed at the discharge port at the lower end of the hopper main body, a discharge port is arranged on the support, and a material valve is installed at the discharge port.

[0011] As a supplement to the technical solution of the present utility model, a barrel cover is installed at the upper end of the barrel body, a plurality of turnbuckles are arranged around the circumference of the edge of the upper port of the barrel body, and the turnbuckles are used to press the edge of the barrel cover.

[0012] As a supplement to the technical solution of the present utility model, an exhaust elbow is arranged on the barrel cover.

[0013] Beneficial effects: The present utility model relates to a hopper dryer. The air enters from the lower part of the heating barrel, and after being heated by the heating pipes inside the heating barrel, the hot air exits from the upper part of the heating barrel and is blown into the middle and upper part of the hopper main body through the downward blowing air inlet pipe; the fan is installed on the lower side of the heating barrel and is located behind the position of the electric control box. Such an arrangement can not only cover the fan to improve the aesthetics, but also make the structure more compact, so as to ensure that the space at the lower right of the front of the machine is completely open, and it can be directly adapted to the sheet metal structure of an electric pre-plastic injection molding machine or a fully electric injection molding machine without adding a raised support; and since the electric control box is not installed on the heating barrel, the electric control box and the heating barrel with high heat dissipation are completely independently arranged, which can effectively avoid the temperature influence of the heating barrel on the electric control box, ensure the stable operation of the electrical components in the electric control box, and can effectively improve the service life of the electrical components; and by setting a double-layer buffer structure, it can effectively avoid the impact deformation of the barrel body and the hopper main body when the hopper is opened. Brief Description of the Drawings

[0014] Figure 1 is the front view of the present utility model;

[0015] Figure 2 is the present utility model Figure 1 the sectional view in the A-A direction;

[0016] Figure 3 is the structural schematic diagram of the present utility model when it is closed;

[0017] Figure 4 is the right view of the present utility model;

[0018] Figure 5 is the structural schematic diagram after the present utility model is opened;

[0019] Figure 6 is the present utility model Figure 5 the sectional view taken along the line B-B in the present utility model.

[0020] Illustration: 1, support; 2, hopper main body; 3, strong snap; 4, barrel body; 5, barrel cover; 6, turn buckle; 7, exhaust elbow; 8, fan; 9, heating barrel; 10, electric control box; 11, heating pipe; 12, downward blowing air inlet pipe; 13, seal; 14, upper hinge; 15, torsion spring; 16, lower hinge; 17, material valve; 18, discharge port; 19, observation window. Specific embodiments

[0021] The following further elaborates the present utility model in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present utility model and not to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the present utility model, those skilled in the art can make various changes or modifications to the present utility model, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0022] The embodiment of the present utility model relates to a hopper dryer, as Figures 1-6 shown, which includes a hopper main body 2 and a barrel body 4. The upper end of the hopper main body 2 is provided with a barrel body 4 that can be turned backward. The rear end of the hopper main body 2 is provided with a heating barrel 9. An air inlet of the lower part of the heating barrel 9 is provided with a fan 8, and an air outlet of the upper part of the heating barrel 9 is provided with a downward blowing air inlet pipe 12. One end of the downward blowing air inlet pipe 12 extends into the barrel body 4 and extends to the hopper main body 2. A seal 13 is arranged between the other end of the downward blowing air inlet pipe 12 and the air outlet of the upper part of the heating barrel 9. An electric control box 10 is fixedly installed on one side of the barrel body 4 in front of the fan 8, and the electric control box 10 controls the operation of the fan 8 and the heating barrel 9 respectively.

[0023] As a preferred solution, a lower hinge 16 is installed at the rear side of the upper end of the hopper main body 2, and an upper hinge 14 is installed at the rear side of the lower end of the barrel body 4. The upper hinge 14 is fixedly connected to the bottom of the heating barrel 9. The upper hinge 14 and the lower hinge 16 are rotationally connected through a hinge pin shaft, and a torsion spring 15 is arranged at the hinge pin shaft; the upper hinge 14, the lower hinge 16 and the hinge pin shaft together form a hinge structure. The heating barrel 9 is fixedly installed at the rear end of the barrel body 4. The heating barrel 9 and the hopper main body 2 can be turned backward through the hinge structure. The torsion spring 15 is provided to absorb the inertial impact when the barrel body 4 is opened. This is the first-layer buffer structure; a compression spring is also arranged between the upper hinge 14 and the lower hinge 16, and this compression spring is also used to absorb the inertial impact when the barrel body 4 is opened. The compression spring is set as the second-layer buffer structure; the double-layer buffer structure can effectively avoid impact deformation on the barrel body 4 and the hopper main body 2. The heating barrel 9 and the electric control box 10 rotate together with the barrel body 4, and there is no need to disassemble the quick-change interface of the upper air duct, which simplifies the later maintenance and replacement.

[0024] This dryer intakes air from the lower part of the heating barrel 9. After being heated by the heating pipes 11 inside the heating barrel 9, the hot air goes out from the upper part of the heating barrel 9 and is blown into the middle and upper part of the hopper main body 2 through the downward blowing air duct 12; the fan 8 is installed on the lower side of the heating barrel 9 and is located behind the position of the electric control box 10 at the same time. Such an arrangement can not only block the fan 8 to improve the aesthetics, but also make the structure more compact, so as to ensure that the space at the lower right part of the front of the machine is completely open, and it can be directly adapted to the sheet metal structure of an electric pre-plastic injection machine or a fully electric injection machine without adding a raised support; and since the electric control box 10 is not installed on the heating barrel 9, the electric control box 10 and the heating barrel 9 with high heat dissipation are completely independently arranged, which can effectively avoid the temperature influence of the heating barrel 9 on the electric control box 10, ensure the stable operation of the electrical components in the electric control box 10, and can effectively improve the service life of the electrical components.

[0025] As a preferred solution, the hopper main body 2 can be a single-layer structure or a double-layer structure in which two inner and outer conical hoppers are stacked. The double-layer structure has a better heat insulation effect and is selected according to actual needs.

[0026] As a preferred solution, a number of strong buckles 3 are arranged around the circumference of the edge of the upper port of the hopper main body 2, and the strong buckles 3 are used to press the lower edge of the barrel body 4; the strong buckles 3 are existing components and can be directly purchased on the market.

[0027] As a preferred solution, a long strip-shaped or circular observation window 19 is vertically arranged at the front end of the barrel body 4, and the actual situation of the materials inside the barrel body 4 can be clearly seen through the observation window 19.

[0028] As a preferred solution, a support 1 is installed at the discharging opening at the lower end of the hopper main body 2. An outlet 18 is provided on the support 1, and a material valve 17 is installed at the outlet 18. The support 1 is provided to simplify the installation and docking of the hopper main body 2, and at the same time, the material valve 17 is equipped to facilitate discharging.

[0029] A barrel cover 5 is installed at the upper end of the barrel body 4. A plurality of turning buckles 6 are arranged around the circumference of the upper port edge of the barrel body 4, and the turning buckles 6 are used to press the edge of the barrel cover 5. An exhaust elbow 7 is provided on the barrel cover 5.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0031] For the convenience of description, spatial relative terms such as "above...", "above...", "on the upper surface of...", "above" can be used here to describe the spatial positional relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation described in the figure of the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "beneath other devices or structures" afterwards. Thus, the exemplary term "above..." can include two orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the spatial relative descriptions used here.

[0032] In addition, it should be noted that the use of words such as "first", "second" to limit the components is only for the convenience of distinguishing the corresponding components. Without additional statement, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0033] The above has introduced in detail a hopper dryer provided by the present application. Specific examples are used in this article to elaborate on the principle and implementation manner of the present application. The description of the above embodiments is only used to help understand the method and its core idea of the present application; at the same time, for those of ordinary skill in the art, according to the idea of the present application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present application.

Claims

1. A hopper dryer, comprising a hopper body (2) and a barrel (4), characterized in that: A barrel body (4) that can be flipped backwards is installed at the upper end of the hopper body (2), a heating barrel (9) is installed at the rear end of the hopper body (2), a fan (8) is installed at the air inlet of the lower part of the heating barrel (9), and a downward blowing air inlet pipe (12) is installed at the air outlet of the upper part of the heating barrel (9), one end of the downward blowing air inlet pipe (12) extends into the barrel body (4) and extends to the hopper body (2), and an electric control box (10) is fixedly installed on one side of the barrel body (4) in front of the fan (8).

2. A hopper dryer according to claim 1, characterized in that: A lower hinge (16) is installed on the rear side of the upper end of the hopper body (2), and an upper hinge (14) is installed on the rear side of the lower end of the barrel body (4). The upper hinge (14) is fixedly connected to the bottom of the heating barrel (9). The upper hinge (14) and the lower hinge (16) are rotatably connected via a hinge pin, and a torsion spring (15) is provided at the hinge pin.

3. A hopper dryer according to claim 2, characterized in that: A compression spring is also provided between the upper hinge (14) and the lower hinge (16), and the compression spring is used to absorb the inertial impact when the barrel body (4) is opened.

4. A hopper dryer according to claim 1, characterized in that: A plurality of strong buckles (3) are arranged around the circumference of the edge of the upper port of the hopper body (2), and the strong buckles (3) are used to press the lower edge of the barrel body (4).

5. A hopper dryer according to claim 1, characterized in that: A long strip or circular observation window (19) is vertically arranged at the front end of the barrel body (4).

6. A hopper dryer according to claim 1, characterized in that: A support (1) is installed at the discharge port at the lower end of the hopper body (2), and a discharge port (18) is arranged on the support (1), and a material valve (17) is installed at the discharge port (18).

7. A hopper dryer according to claim 1, characterized in that: A barrel cover (5) is installed on the upper end of the barrel body (4), and a plurality of buckles (6) are arranged around the circumference of the edge of the upper end of the barrel body (4), and the buckles (6) are used to press the edge of the barrel cover (5).

8. A hopper dryer according to claim 7, characterized in that: The barrel cover (5) is provided with an exhaust elbow (7).

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