Hopper device for bottle preform injection molding

Abstract

The utility model discloses a hopper device for bottle preform injection molding, which comprises a hopper and a dehumidifier, a first air inlet and a first air outlet are arranged on the hopper, a second air inlet and a second air outlet are arranged on the dehumidifier, the first air inlet is communicated with the second air outlet, the first air outlet is communicated with the second air inlet, and a stirring device is arranged in the hopper. The stirring device comprises a motor and a stirring rod, the motor is arranged on the hopper, the stirring rod extends into the hopper, one end of the stirring rod is connected with an output shaft of the motor, a feeding port is formed in the top of the hopper, and a discharging port is formed in the bottom of the hopper. The dehumidifier is arranged, and the second air outlet of the dehumidifier communicates with the first air inlet of the hopper, so that external air enters the hopper after being dehumidified by the dehumidifier; meanwhile, through air circulation, the materials in the hopper can be dried, moisture in the materials is greatly reduced, the situation that the humidity of the materials is too high is avoided, the storage time of the materials is prolonged, and the quality of the materials is guaranteed.

Description

Technical Field

[0001] The utility model belongs to an important component structure of a bottle preform injection molding machine, in particular to a hopper device for bottle preform injection molding. Background Art

[0002] During injection molding, the injection molding machine feeds materials through the hopper. Therefore, in order to ensure that the hopper can feed materials normally, a corresponding amount of material needs to be added to the hopper before the injection molding machine starts working. However, the existing hoppers are all standard hoppers, and each hopper is loaded with materials of corresponding weight, such as 800 kg and 1000 kg hoppers. Therefore, hoppers of corresponding specifications are selected for use during processing. When the material is placed in the hopper, such as an injection molding machine hopper structure disclosed in application number 202222432836.1, the lifting component is directly opened, and the material is added to the hopper. After the feeding is completed, the lifting component is covered and the hopper is sealed. When the material is being injection molded, the material cannot be used up in one processing. Therefore, the storage time of the material in the hopper increases accordingly. However, since the outside air enters the hopper when the hopper is opened, the humidity of the material in the hopper is relatively high. Therefore, after the material is stored for a long time, the material will turn yellow, affecting the quality of the material, and then affecting the quality of the product after injection molding.

[0003] At the same time, for example, when less than 800 kg of material is loaded in an 800 kg hopper, it is difficult for the operator to judge how heavy the added material is. Therefore, when only 600 kg of material is needed for injection molding, the operator needs to switch to an injection molding machine with a 600 kg hopper for processing. The entire operation process is inconvenient and has poor applicability. Utility Model Content

[0004] The purpose of the utility model is to provide a hopper device for preform injection molding which can solve at least one of the above problems.

[0005] According to one aspect of the utility model, a hopper device for preform injection molding is provided, including a hopper and a dehumidifier, the hopper is provided with a first air inlet and a first air outlet, the dehumidifier is provided with a second air inlet and a second air outlet, the first air inlet is connected to the second air outlet, and the first air outlet is connected to the second air inlet, a stirring device is provided in the hopper, the stirring device includes a motor and a stirring rod, the motor is provided on the hopper, the stirring rod extends into the hopper, one end of the stirring rod is connected to the output shaft of the motor, a feeding port is provided at the top of the hopper, and a feeding port is provided at the bottom.

[0006] The beneficial effects of the utility model are as follows: by providing a dehumidifier, and the second air outlet of the dehumidifier is connected with the first air inlet of the hopper, therefore, the outside air is dehumidified by the dehumidifier before entering the hopper; at the same time, the material in the hopper can be dried through the circulation of air, which greatly reduces the moisture in the material, avoids excessive humidity of the material, increases the storage time of the material, and ensures the quality of the material.

[0007] In some embodiments, a hopper device for preform injection molding further includes a connecting pipe, the dehumidifier is located outside the hopper, there are two connecting pipes, the first air outlet is connected to the second air inlet through one of the connecting pipes, and the first air inlet is connected to the second air outlet through the other connecting pipe. Therefore, by providing the connecting pipe, the distance between the dehumidifier and the hopper can be easily adjusted to meet different usage requirements.

[0008] In some embodiments, a hopper device for preform injection molding further includes a damping sensor, a motor is located at the top of the hopper, the motor is a damping motor, the damping sensor is connected to the motor, and a stirring head is provided at the other end of the stirring rod. Thus, by providing a damping sensor, the resistance encountered by the motor when rotating can be measured, so that the operator can judge whether the material has reached the corresponding weight.

[0009] In some embodiments, the stirring head includes blades, thereby facilitating the added materials to be dispersed to various locations in the hopper, and preventing the materials from being concentrated and accumulated at the feed inlet.

[0010] In some embodiments, the stirring rod includes a plurality of screw sections, the first screw section is connected to the output shaft of the motor, the stirring head is fixed to the last screw section, and adjacent screw sections are connected and fixed by nuts. Thus, by providing a plurality of screw sections, the length of the stirring rod can be easily adjusted, so that materials of different weights can be loaded in the hopper, and the weight of the materials can be easily obtained.

[0011] In some embodiments, a hopper device for preform injection molding further includes a mounting plate, the mounting plate cover is disposed on the top of the hopper, the feed port is located on the mounting plate, and the motor is fixed on the mounting plate. Thus, by providing the mounting plate, the motor is conveniently installed on the hopper, and the mounting plate is conveniently installed and removed from the hopper, thereby facilitating the adjustment of the length of the stirring rod.

[0012] In some embodiments, a limiting groove is provided at the top of the hopper, and the mounting plate is arranged in the limiting groove and fixed to the hopper by screws. Thus, the limiting groove can facilitate the quick positioning of the mounting plate on the hopper. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a structural schematic diagram of a hopper device for bottle embryo injection molding.

[0014] Figure 2 The utility model is a structural schematic diagram of a stirring device in a hopper device for bottle embryo injection molding. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] Reference Figure 1-2 A hopper device for preform injection molding includes a hopper 1 and a dehumidifier 2. The hopper 1 is provided with a first air inlet 11 and a first air outlet 12. The dehumidifier 2 is provided with a second air inlet 21 and a second air outlet 22. The first air inlet 11 is connected to the second air outlet 22, and the first air outlet 12 is connected to the second air inlet 21. A stirring device 3 is provided in the hopper 1. The stirring device 3 includes a motor 31 and a stirring rod 32. The motor 31 is provided on the hopper 1. The stirring rod 32 extends into the hopper 1. One end of the stirring rod 32 is connected to the output shaft of the motor 31. A feed port is provided at the top of the hopper 1, and a discharge port 14 is provided at the bottom. Therefore, the air dried by the dehumidifier 2 flows to the first air inlet 11 through the second air outlet 22 and enters the hopper 1; the air in the hopper 1 flows out through the first air outlet 12 and then enters the dehumidifier 2 through the second air inlet 21.

[0017] When the hopper device for preform injection molding is charged, the suction machine sucks the material and enters the hopper 1 through the feed port, and the air dried by the dehumidifier 2 enters the hopper 1 through the first air inlet 11. Through air circulation, the material in the hopper 1 can be dried; the air in the hopper 1 is drawn out through the first air outlet 12 and enters the dehumidifier 2 for dehumidification. Therefore, the air can be dehumidified by the dehumidifier 2 to achieve drying of the material, which is beneficial to increase the storage time of the material in the hopper and ensure the quality of the material.

[0018] The hopper device for preform injection molding of the utility model further includes a connecting pipe 4. The dehumidifier 2 is located outside the hopper 1. There are two connecting pipes 4. The first air outlet 12 is connected to the second air inlet 21 through one of the connecting pipes 4, and the first air inlet 11 is connected to the second air outlet 22 through the other connecting pipe 4. The connecting pipe 4 is a hose, which facilitates the corresponding movement of the position of the dehumidifier 2 and meets the installation requirements of different occasions.

[0019] The hopper device for preform injection molding of the utility model also includes a damping sensor. The motor 31 is located at the top of the hopper. The motor 31 is a damping motor. The damping sensor is connected to the motor 31. The other end of the stirring rod 32 is provided with a stirring head 33. The damping force on the motor 31 can be measured in real time by the damping sensor. When the hopper is feeding, as the material gradually accumulates in the hopper, the resistance to the rotation of the stirring head 33 gradually increases. When the damping sensor measures that the damping force on the motor 31 reaches a certain value, the damping sensor transmits the value to the external controller, and the suction machine is controlled to be closed by the external controller, and the hopper completes the feeding.

[0020] The stirring head 33 includes blades 331. Therefore, when the motor 31 is working, it drives the stirring rod 32 to rotate, and the stirring head 33 rotates together with the stirring rod 32, so that the blades 331 rotate. When the blades 331 rotate, they can act on the material, which is conducive to evenly dispersing the material in the hopper, and when the material gradually rises to the blades 331, the resistance of the blades 331 gradually increases, so that the resistance of the damping motor gradually increases, and the damping sensor measures the corresponding damping force, which is convenient for the external controller to control the suction machine to continue to suck the material or stop the fine material through the damping force.

[0021] The stirring rod 32 includes a plurality of screw rods 321, the first screw rod 321 is connected to the output shaft of the motor 31, the stirring head 33 is fixed to the last screw rod 321, and the adjacent screw rods 321 are connected and fixed by nuts 5. The nuts 5 facilitate the connection of adjacent screw rods 321, and facilitate the increase and decrease of screw rods 321, so as to adjust the length of the stirring rod 32.

[0022] Therefore, when more materials need to be added, part of the screw can be taken out to shorten the length of the stirring rod 32; conversely, when less materials need to be added, the length of the screw 321 can be increased. Specifically, when the resistance value of the motor 31 measured by the damping sensor rises to a certain preset value, the external controller controls the suction machine to close and stop feeding. Therefore, the length of the stirring rod 32 can be adjusted according to the amount of materials required to be added to the hopper to determine whether the required weight of the material is reached. For example, for a hopper with a specification of 800 kg, when only 600 kg of materials need to be added, the length of the stirring rod 32 can be increased according to the operator's previous measurement, that is, a section or a corresponding length of the screw 321 can be added accordingly, so that the length of the stirring rod 32 is increased. When the material is added to a certain height, the resistance encountered by the stirring head 33 during stirring gradually increases. When the damping value reaches the preset value of the external controller, the controller controls the suction machine to stop sucking the material and complete the material feeding.

[0023] The hopper device for preform injection molding further comprises a mounting plate 6 , which is covered on the top of the hopper 1 , the feed port is located on the mounting plate 6 , and the motor 31 is fixed on the mounting plate 6 .

[0024] The top of the hopper 1 is provided with a limiting groove, and the mounting plate 6 is arranged in the limiting groove and fixed with the hopper 1 by screws. Through the limiting groove, the mounting plate 6 can be limitedly installed, which is convenient for the rapid positioning of the mounting plate 6 on the hopper 1.

[0025] When the length of the stirring rod 32 needs to be adjusted, the screws on the mounting plate 6 are loosened so that the mounting plate 6 connected to the stirring device 3 is taken out from the hopper; after the adjustment of the stirring rod 32 is completed, the mounting plate 6 is fixed to the hopper 1 by screws to facilitate the adjustment of the stirring rod 32.

[0026] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A hopper device for preform injection molding, characterized in that: The invention comprises a hopper (1) and a dehumidifier (2), wherein the hopper (1) is provided with a first air inlet (11) and a first air outlet (12), and the dehumidifier (2) is provided with a second air inlet (21) and a second air outlet (22), wherein the first air inlet (11) is connected to the second air outlet (22), and the first air outlet (12) is connected to the second air inlet (21), and a stirring device (3) is provided in the hopper (1), wherein the stirring device (3) comprises a motor (31) and a stirring rod (32), wherein the motor (31) is provided on the hopper (1), and the stirring rod (32) extends into the hopper (1), and one end of the stirring rod (32) is connected to the output shaft of the motor (31), and a feeding port is provided at the top of the hopper (1), and a feeding port (14) is provided at the bottom.

2. A hopper device for preform injection molding according to claim 1, characterized in that: It also includes a connecting pipe (4), the dehumidifier (2) is located outside the hopper (1), and there are two connecting pipes (4), the first air outlet (12) and the second air inlet (21) are connected through one of the connecting pipes (4), and the first air inlet (11) and the second air outlet (22) are connected through the other connecting pipe (4).

3. A hopper device for preform injection molding according to claim 1 or 2, characterized in that: It also includes a damping sensor. The motor (31) is located at the top of the hopper. The motor (31) is a damping motor. The damping sensor is connected to the motor (31). The other end of the stirring rod (32) is provided with a stirring head (33).

4. A hopper device for preform injection molding according to claim 3, characterized in that: The stirring head (33) comprises a blade (331).

5. A hopper device for preform injection molding according to claim 4, characterized in that: The stirring rod (32) comprises a plurality of screw rods (321), wherein the first screw rod (321) is connected to the output shaft of the motor (31), the stirring head (33) is fixed on the last screw rod (321), and adjacent screw rods (321) are connected and fixed by nuts (5).

6. A hopper device for preform injection molding according to claim 5, characterized in that: It also includes a mounting plate (6), the mounting plate (6) is covered on the top of the hopper (1), the feed port is located on the mounting plate (6), and the motor (31) is fixed on the mounting plate (6).

7. A hopper device for preform injection molding according to claim 6, characterized in that: A limiting groove is provided at the top of the hopper (1), and the mounting plate (6) is arranged in the limiting groove and fixed to the hopper (1) by means of screws.

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