CN210415280U

CN210415280U - Automatic discharging device of injection molding machine

Info

Publication number: CN210415280U
Application number: CN201921000576.2U
Authority: CN
Inventors: 郑志龙
Original assignee: Suzhou Hexin New Material Technology Co Ltd
Current assignee: Suzhou Hexin New Material Technology Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-04-28
Anticipated expiration: 2029-06-28

Abstract

The utility model relates to the field of injection molding machine components, and discloses an automatic blanking device of an injection molding machine, which comprises a feeding hopper and a discharging hopper; the discharge port of the feeding hopper is connected with the feeding port of the discharging hopper; the blanking device also comprises a blanking switch rod and a control unit; the upper part of the blanking switch rod is positioned in the blanking hopper, and the lower part of the blanking switch rod extends out of a discharge hole of the blanking hopper; the bottom of the blanking switch rod is provided with a cylinder; the blanking switch rod is provided with an upper stop block for plugging a feeding hole of a blanking hopper; a material detector for detecting materials is also arranged on the inner side wall of the discharging hopper; the material detector and the air cylinder are both connected with the control unit. The control unit is internally provided with a main control unit and an electromagnetic valve for controlling the cylinder. The device can be based on the volume of material control that leaves in the hopper down the dog carries out the shutoff to the pan feeding mouth of hopper down, and the volume of material control in the hopper will be down in appropriate scope, operating personnel only need at every turn with the feeding hopper fill with can, reduce artifical reinforced frequency.

Description

Automatic discharging device of injection molding machine

Technical Field

The utility model relates to an injection molding machine subassembly, in particular to automatic unloader of injection molding machine.

Background

The plastic product is produced by heating plastic grains to molten state, extruding the heated plastic grains into plastic mold, and cooling to obtain plastic product in various shapes. After pouring the plastic raw materials into the feed hopper, the plastic raw materials enter the injection molding machine to be heated and melted, and finally, the plastic in a molten state is sent into a mold by the injection molding machine. The traditional injection molding machine needs to feed in materials in a timing mode so as to meet the molding requirement of plastic products, needs frequent manual feeding and is very inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model provides an automatic unloader of injection molding machine, reducible artifical reinforced frequency, save time and human cost are provided.

The utility model provides a technical scheme that its technical problem adopted is: an automatic discharging device of an injection molding machine comprises a feeding hopper and a discharging hopper; the discharge hole of the upper hopper is connected with the feed inlet of the lower hopper; the blanking device also comprises a blanking switch rod and a control unit; the upper part of the blanking switch rod is positioned in the blanking hopper, and the lower part of the blanking switch rod extends out of a discharge hole of the blanking hopper; the bottom of the blanking switch rod is provided with an air cylinder; the blanking switch rod is provided with an upper stop block for plugging a feeding hole of the blanking hopper; a material detector for detecting materials is also arranged on the inner side wall of the discharging hopper; the material detector and the air cylinder are connected with the control unit. In operating personnel poured the material into the feeding funnel, the device can be based on the volume of material control that leaves in the hopper down the dog carries out the shutoff to the pan feeding mouth of hopper down, with the volume of material control in the hopper down in the appropriate scope, operating personnel only need at every turn with the feeding funnel fill can, reduce artifical reinforced frequency. When the material amount in the blanking hopper is detected to be sufficient, the air cylinder drives the blanking switch rod to ascend, so that the upper stop block blocks a feeding hole of the blanking hopper, and the material is left in the feeding hopper; after the material in the blanking hopper is consumed for a period of time, the material detector detects that the material amount is insufficient, the air cylinder drives the blanking switch rod to descend, and the feeding opening of the blanking hopper is opened, so that the material enters the blanking hopper from the feeding hopper, and the material amount in the blanking hopper is automatically supplemented.

Further, the method comprises the following steps: the upper stop block is spherical, and the diameter of the ball of the upper stop block is larger than that of the feeding hole of the lower hopper. The upper stop block is designed to be spherical, so that the resistance of the material to the upper stop block when the upper stop block rises can be reduced.

Further, the method comprises the following steps: the upper stop block is positioned in the lower hopper.

Further, the method comprises the following steps: the cylinder is a linear motion cylinder.

Further, the method comprises the following steps: the control unit is internally provided with a main control unit and an electromagnetic valve for controlling the air cylinder. The main control unit receives signals of the material detector and controls the cylinder to stretch and retract through the electromagnetic valve.

Drawings

FIG. 1 is a schematic view of an automatic blanking device of an injection molding machine stopping blanking;

FIG. 2 is a schematic view of the automatic blanking device of the injection molding machine.

Labeled as: 100. feeding a hopper; 200. feeding a hopper; 201. a material detector; 300. a blanking switch lever; 301. an upper stop block; 310. a cylinder; 400. a control unit.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 and 2, an automatic blanking device of an injection molding machine includes an upper hopper 100 and a lower hopper 200; the discharge hole of the upper hopper 100 is connected with the feed hole of the lower hopper 200; further comprises a blanking switch rod 300 and a control unit 400; the upper part of the blanking switch rod 300 is positioned in the blanking hopper 200, and the lower part of the blanking switch rod 300 extends out of the discharge hole of the blanking hopper 200; the bottom of the blanking switch rod 300 is provided with an air cylinder 310; the blanking switch rod 300 is provided with an upper stop block 301 for plugging a feeding hole of the blanking hopper 200; a material detector 201 for detecting materials is further arranged on the inner side wall of the lower hopper 200; the material detector 201 and the air cylinder 310 are both connected with the control unit 400. Whether material detector 201 is used for detecting the material volume in hopper 200 down sufficient, can select for use diffuse reflection sensor or correlation formula photoelectric sensor, and correlation formula photoelectric sensor receives external disturbance easily, and diffuse reflection sensor is selected for use as material detector 201 in this example.

In practical production, each time an operator fills the feeding hopper 100, the device can automatically control the material amount in the discharging hopper 200 in a proper range; when the material detector 201 detects that the amount of the material in the blanking hopper 200 is sufficient, a detection signal is fed back to the control unit 400, the control unit 400 controls the air cylinder 310 to drive the blanking switch rod 300 to ascend, so that the upper stop block 301 blocks the feeding port of the blanking hopper 200, and the material is left in the feeding hopper 100; after the materials in the blanking hopper 200 are consumed for a period of time, the material detector 201 detects that the material amount is insufficient, and feeds back a detection signal to the control unit 400, and the control unit 400 controls the air cylinder 310 to drive the blanking switch rod 300 to descend, so that the feeding port of the blanking hopper 200 is opened, the materials enter the blanking hopper 200 from the feeding hopper 100, and the material amount in the blanking hopper 200 is automatically supplemented.

On the basis, as shown in fig. 1, the upper stop block 301 is spherical, and the diameter of the ball of the upper stop block 301 is larger than that of the feeding hole of the lower hopper 200. The upper stop block 301 may also be a diamond shape or other shapes as long as the feeding hole of the blanking hopper 200 can be blocked, and the ball shape adopted in this example can reduce the pressure of the material on the upper stop block 301 when the upper stop block 301 rises.

On the basis of the above, as shown in fig. 1, the upper stop block 301 is positioned in the lower hopper 200.

On the basis of the above, as shown in fig. 1, the cylinder 310 is a linear motion cylinder.

On the basis, as shown in fig. 1, a main control unit and a solenoid valve for controlling the cylinder 310 are disposed in the control unit 400. The main control unit is used for receiving a detection signal of the material detector 201 and controlling the electromagnetic valve to drive the air cylinder to stretch according to the received detection signal; the main control unit can select a single chip microcomputer or an industrial personal computer such as a PLC, and specifically can select a 51 series single chip microcomputer or a Siemens series PLC.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides an automatic unloader of injection molding machine which characterized in that: comprises an upper hopper (100) and a lower hopper (200); the discharge hole of the upper hopper (100) is connected with the feed hole of the lower hopper (200); the automatic feeding device also comprises a blanking switch rod (300) and a control unit (400); the upper part of the blanking switch rod (300) is positioned in the blanking hopper (200), and the lower part of the blanking switch rod (300) extends out of the discharge hole of the blanking hopper (200); the bottom of the blanking switch rod (300) is provided with an air cylinder (310); an upper stop block (301) for plugging a feeding opening of the blanking hopper (200) is arranged on the blanking switch rod (300); a material detector (201) for detecting materials is further arranged on the inner side wall of the discharging hopper (200); the material detector (201) and the air cylinder (310) are both connected with the control unit (400).

2. The automatic blanking device of the injection molding machine according to claim 1, characterized in that: the upper stop block (301) is spherical, and the diameter of the ball of the upper stop block (301) is larger than that of the feeding hole of the blanking hopper (200).

3. The automatic blanking device of the injection molding machine according to claim 1, characterized in that: the upper stop block (301) is positioned in the lower hopper (200).

4. The automatic blanking device of the injection molding machine according to claim 1, characterized in that: the cylinder (310) is a linear motion cylinder.

5. The automatic blanking device of the injection molding machine according to claim 1, characterized in that: a main control unit and an electromagnetic valve for controlling the air cylinder (310) are arranged in the control unit (400).