A plastic product raw material drying device

Abstract

The utility model discloses a plastic product raw material drying device, comprising: a box body, the upper end of which is connected to a feed pipe, the box body is provided with two mutually independent storage chambers, the storage chambers are both connected to a discharge pipe connected to the outside of the box body, and the discharge pipe is provided with a valve; a drying mechanism is arranged in the box body; a material dividing mechanism is arranged between the drying mechanism and the two storage chambers, and connects the drying mechanism to one of the two storage chambers. The utility model provides a drying device for plastic product raw materials, which can continuously feed an injection molding machine.

Description

Technical Field

[0001] The utility model relates to the field of plastic product processing equipment, and more specifically, to a plastic product raw material drying device. Background Art

[0002] When processing plastic products such as disposable plastic tubes and plastic cups, plastic particles are used as raw materials and added to the injection molding machine. The injection molding machine melts the raw materials before injection molding. The plastic particles added to the injection molding machine need to be dry to avoid the moisture in the plastic particles producing steam during the high-temperature melting process, resulting in pores in the injection molding machine and affecting the quality of the finished products of the injection molding machine. Therefore, moisture-proof drying treatment is required when storing raw materials. Generally, bagged desiccant is added to the storage barrel, but the contact area between the desiccant and the raw materials is limited, resulting in poor moisture-proof drying effect, so the plastic particles need to be dried before adding them to the injection molding machine. At present, the drying equipment used for plastic product raw materials dries the plastic product raw materials before transporting them to the injection molding machine. The operation of the injection molding machine requires continuous feeding. The existing drying equipment is difficult to ensure the continuous operation of drying and feeding of plastic particles. Therefore, it is necessary to provide a drying device that can dry the plastic product raw materials online and ensure continuous feeding to the injection molding machine. Utility Model Content

[0003] The utility model aims to provide a drying device for raw materials of plastic products, which can continuously feed the injection molding machine.

[0004] The utility model solves the above technical problems with the following technical solutions: A plastic product raw material drying device, comprising:

[0005] A box body, the upper end of which is connected to a feed pipe, the box body is provided with two independent storage chambers, the storage chambers are both connected to a discharge pipe communicating with the outside of the box body, and the discharge pipe is provided with a valve;

[0006] A drying mechanism, which is arranged in the box;

[0007] The material dividing mechanism is arranged between the drying mechanism and the two material storage chambers, and connects the drying mechanism to the two material storage chambers selectively.

[0008] Preferably, in the plastic product raw material drying device, the material dividing mechanism comprises:

[0009] A herringbone tee, which is arranged below the drying mechanism;

[0010] Two connecting pipes, one end of which is respectively connected with the herringbone tee, and the other end of which is respectively connected with the two storage chambers, and the connecting pipes are provided with solenoid valves.

[0011] Preferably, in the plastic product raw material drying device, the drying mechanism includes a stirring component and a heating component.

[0012] Preferably, in the plastic product raw material drying device, the stirring component comprises:

[0013] A motor, which is arranged at the upper end of the box body through a mounting frame;

[0014] The stirring shaft is vertically arranged in the box body, and the upper end thereof passes through the box body upward and is transmission-connected to the motor. A plurality of stirring blades are arranged at intervals on the stirring shaft.

[0015] Preferably, in the plastic product raw material drying device, the heating component comprises:

[0016] Two sealing plates are arranged at intervals up and down and are connected to the inner wall of the box body to form an air inlet cavity with the inner wall of the box body, and a plurality of air outlet holes are evenly distributed on the sealing plate located at the top, and the vertical pipe of the herringbone tee passes through the two sealing plates upward;

[0017] An air inlet pipe, which runs through the box body, one end of the air inlet pipe is connected to an external hot air source, and the other end of the air inlet pipe is connected to the air inlet cavity;

[0018] An air outlet is arranged at the upper end of the box body, and a filter screen is arranged at the air outlet.

[0019] Preferably, in the plastic product raw material drying device, the sealing plate located at the top is inclined downward toward the vertical pipe of the herringbone tee.

[0020] The beneficial effects of the utility model are:

[0021] The drying device of the utility model dries the raw materials of plastic products through a drying mechanism, and stores the dried raw materials alternately in two storage chambers through a material dividing mechanism, so that when one of the storage chambers is feeding the injection molding machine, the material dividing mechanism puts the dried raw materials into the other storage chamber, and the two storage chambers feed the injection molding machine in turn, thereby ensuring continuous feeding to the injection molding machine.

[0022] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the drying device described in the utility model;

[0024] Figure 2It is a cross-sectional view of the box body described in the utility model. DETAILED DESCRIPTION

[0025] The present invention will be further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0026] It should be noted that, in the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] Figure 1-Figure 2 A plastic product raw material drying device provided in an embodiment of the utility model comprises:

[0028] A box body 1, the upper end of which is connected to a feed pipe 2, the box body 1 is provided with two independent storage chambers 3, the storage chambers 3 are connected to a discharge pipe 4 communicating with the outside of the box body 1, and the discharge pipe 4 is provided with a valve;

[0029] A drying mechanism, which is arranged in the box body 1;

[0030] The material dividing mechanism is arranged between the drying mechanism and the two material storage chambers 3 , and connects the drying mechanism to one of the two material storage chambers 3 .

[0031] In this embodiment, the discharge pipes 4 of the two storage chambers 3 are respectively connected to the injection molding machine, and the first batch of raw materials is placed in the box body 1 through the feed pipe 2, and dried by the drying mechanism. After drying, the drying mechanism is connected with one of the storage chambers 3 through the material dividing mechanism, and the dried raw materials are placed therein, so that this storage chamber 3 is the first storage chamber 3 body, and the other storage chamber 3 is the second storage chamber 3 body. After completion, the first storage chamber 3 body can start to feed the injection molding machine. During the feeding process of the storage chamber 3, the second batch of raw materials enters the box body 1, and the drying mechanism dries it. After drying, the drying mechanism is connected with the second storage chamber 3 through the material dividing mechanism and the dried raw materials are placed therein. This process needs to be completed before the raw materials in the first storage chamber 3 body are discharged. After the raw materials in the first storage chamber 3 body are discharged, they can be discharged through the second storage chamber 3 body, and the third batch of raw materials begins to dry and is stored through the first storage chamber 3 body. By analogy, the two storage chambers 3 feed the injection molding machine alternately, ensuring that one of them is always discharging materials and the other is storing materials, thereby ensuring that the drying device always has dried raw materials to continuously feed the injection molding machine.

[0032] Preferably, as another embodiment of the utility model, the material distribution mechanism includes:

[0033] A herringbone tee 5, which is arranged below the drying mechanism;

[0034] Two connecting pipes 6 have one end connected to the herringbone tee 5 respectively, and the other end connected to the two storage chambers 3 respectively, and a solenoid valve is provided on the connecting pipe 6.

[0035] In this embodiment, the vertical pipe of the herringbone tee 5 is connected to the discharge end of the drying mechanism, and the solenoid valves on the two connecting pipes 6 are closed at the same time. The plastic particles remain in the drying mechanism for drying. The plastic particles dried by the drying mechanism enter the herringbone tee 5 through the vertical pipe of the herringbone tee 5. The solenoid valve corresponding to the storage chamber 3 that needs to be discharged by pressure is opened, and the dried plastic particles can be discharged into the storage chamber 3 that needs to be discharged by pressure.

[0036] Preferably, as another embodiment of the present invention, the drying mechanism includes a stirring component and a heating component.

[0037] Specifically, the stirring assembly includes:

[0038] A motor 7, which is arranged at the upper end of the box body 1 through a mounting frame;

[0039] The stirring shaft 8 is vertically arranged in the box body 1 , and its upper end passes through the box body 1 upward and is transmission-connected to the motor 7 . A plurality of stirring blades 9 are arranged at intervals on the stirring shaft 8 .

[0040] Specifically, the heating component includes:

[0041] Two sealing plates 10 are arranged at intervals up and down and are connected to the inner wall of the box body 1 to form an air inlet cavity with the inner wall of the box body 1. The sealing plate 10 located at the top is evenly distributed with a plurality of air outlet holes. The vertical pipe of the herringbone tee 5 passes through the two sealing plates 10 upwards.

[0042] An air inlet pipe 11 passes through the housing 1, one end of the air inlet pipe 11 is connected to an external hot air source, and the other end of the air inlet pipe 11 is connected to the air inlet cavity;

[0043] An air outlet 12 is disposed at the upper end of the box body 1 , and a filter screen is disposed at the air outlet 12 .

[0044] In this embodiment, the plastic particles to be dried enter the box 1 through the feed pipe 2 and fall on the sealing plate 10 located above. The aperture of the air outlet on the sealing plate 10 needs to be smaller than the particle size of the plastic particles, so as to prevent the plastic particles from entering the air inlet cavity through the air outlet. Hot air is sent into the air inlet cavity through an external hot air source, and the hot air source can be a hot air blower. The hot air in the box 1 will move upward and enter the box 1 from the multiple air outlets on the sealing plate 10 located above, and finally discharge the box 1 from the air outlet 12 at the upper end of the box 1. During the rising process of the hot air, it passes through the gaps between the plastic particles, and the plastic particles can be dried and heated. At the same time, the stirring shaft 8 is driven to rotate by the motor 7, and the multiple stirring blades 9 on the stirring shaft 8 stir the plastic particles in the box 1, further enhancing the drying effect and reducing the drying time. The upper end opening of the vertical pipe of the herringbone tee 5 is flush with the sealing plate 10 located above, ensuring that the dried plastic particles can fall into the vertical pipe of the herringbone tee 5. In order to prevent the plastic particles from being discharged from the air outlet 12 during the stirring process, a filter screen is provided at the air outlet 12 so that hot air can pass through the air outlet 12 but the plastic particles cannot.

[0045] Preferably, as another embodiment of the present utility model, Figure 2 As shown in FIG. 1 , the sealing plate 10 located at the top is inclined downward toward the vertical pipe of the herringbone tee 5 .

[0046] In this embodiment, the sealing plate 10 located at the top is tilted downward toward the vertical tube of the herringbone tee 5, which can ensure that the plastic on the sealing plate 10 located at the top can fall into the vertical tube of the herringbone tee 5. In order to prevent the plastic directly falling into the vertical tube of the herringbone tee 5 during feeding from being insufficiently dried during the drying process, a solenoid valve is also provided at the upper end of the vertical tube of the herringbone tee 5 to seal the upper end of the vertical tube of the herringbone tee 5 during the stirring process.

[0047] Although the implementation scheme of the utility model has been disclosed as above, it is not limited to the applications listed in the specification and implementation scheme. It can be fully applied to various fields suitable for the utility model. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the utility model is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A plastic product raw material drying device, characterized in that: include: A box body (1) is connected to a feed pipe (2) at its upper end, and two mutually independent storage chambers (3) are provided in the box body (1), and each of the storage chambers (3) is connected to a discharge pipe (4) communicating with the outside of the box body (1), and a valve is provided on the discharge pipe (4); A drying mechanism, which is arranged in the box (1); The material dividing mechanism is arranged between the drying mechanism and the two material storage chambers (3), and connects the drying mechanism to one of the two material storage chambers (3).

2. A plastic product raw material drying device as claimed in claim 1, characterized in that: The material distribution mechanism comprises: A herringbone tee (5) arranged below the drying mechanism; Two connecting pipes (6) have one end connected to the herringbone tee (5) and the other end connected to the two material storage chambers (3), and a solenoid valve is provided on the connecting pipe (6).

3. A plastic product raw material drying device as claimed in claim 2, characterized in that: The drying mechanism comprises a stirring component and a heating component.

4. A plastic product raw material drying device as claimed in claim 3, characterized in that: The stirring assembly comprises: A motor (7) which is arranged on the upper end of the box (1) via a mounting frame; A stirring shaft (8) is vertically arranged in the box body (1), and its upper end passes through the box body (1) upward and is transmission-connected to the motor (7). A plurality of stirring blades (9) are arranged at intervals on the stirring shaft (8).

5. A plastic product raw material drying device as claimed in claim 3, characterized in that: The heating assembly comprises: Two sealing plates (10) are arranged at intervals in the upper and lower parts and are connected to the inner wall of the box body (1) to form an air inlet cavity with the inner wall of the box body (1); a plurality of air outlet holes are evenly distributed on the sealing plate (10) located at the upper part; and the vertical pipe of the herringbone tee (5) penetrates the two sealing plates (10) upwards; An air intake pipe (11) passes through the box body (1), one end of the air intake pipe (11) is connected to an external hot air source, and the other end of the air intake pipe (11) is connected to the air intake cavity; An air outlet (12) is provided at the upper end of the box body (1), and a filter screen is provided at the air outlet (12).

6. A plastic product raw material drying device as claimed in claim 5, characterized in that: The sealing plate (10) located at the top is inclined downwardly toward the vertical pipe of the herringbone tee (5).

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