Nitrogen filling device for injection molding

Abstract

The utility model discloses a nitrogen filling device for injection molding, which relates to the technical field of injection molding, and comprises an injection molding machine, and further comprises a blanking hopper positioned at the upper part of the injection molding machine, and the bottom of the blanking hopper is connected with a blanking pipe; the nitrogen gas filling assembly comprises a partition plate, a gas filling pipeline connected to the outer side of the partition plate, a nitrogen gas generator, and a cooling fan and a gas inlet which are arranged on one side of the nitrogen gas generator; according to the nitrogen filling device for injection molding, when oxygen needs to be exhausted from a discharging pipe, nitrogen is generated through a nitrogen generator, enters a gas filling pipeline from the interior of a gas outlet and then enters a partition plate, under the blocking condition of a partition strip, the discharging pipe is filled with the nitrogen while discharging is conducted, and the oxygen in the discharging pipe is extruded and exhausted; therefore, when materials enter the injection molding pipeline for injection molding, bubbles are not generated, and the injection molding effect of finished products is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding, in particular to an injection molding nitrogen charging device. Background Technique

[0002] Injection molding is a method for manufacturing industrial product shapes. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding, compression molding and die casting methods. An injection molding machine (referred to as an injection machine or an injection molding machine for short) is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting materials. Injection molding is achieved through an injection molding machine and a mold.

[0003] During the working process of existing injection molding equipment, the materials in the hopper are prone to mixing with air, which contains oxygen. During the heating and injection molding process of the materials, it is easy to cause bubbles inside the injection-molded products, thus affecting the injection molding effect of the finished products. For this reason, the utility model proposes an injection molding nitrogen charging device. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides an injection molding nitrogen charging device, which solves the problems in the above background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: An injection molding nitrogen charging device includes an injection molding machine, and further includes:

[0006] A hopper, which is located above the injection molding machine, and a feeding pipe is connected to the bottom of the hopper;

[0007] A nitrogen charging component, which includes a partition board, an inflation pipeline connected to the outside of the partition board, a nitrogen generator, a heat dissipation fan and an air inlet arranged on one side of the nitrogen generator, an air outlet arranged at the upper end of the nitrogen generator, a control button arranged on one side of the nitrogen generator, and partition strips arranged inside the partition board.

[0008] Further, an injection molding nitrogen charging device further includes:

[0009] An injection molding pipeline, which is located at the upper end of the injection molding machine and is communicated with the feeding pipe.

[0010] Further, an injection molding nitrogen charging device further includes:

[0011] A control panel, a support rod is arranged between the control panel and the injection molding machine, and the support rod is connected to the injection molding machine through bolts. An indicator light is arranged on the outside of the control panel, and a control circuit board and a battery are arranged inside it.

[0012] Further, the partition plate is of a hollow structure, and the partition plate is in communication with both the blanking pipe and the injection molding pipeline, and the inflation pipeline is in communication with the partition plate.

[0013] Further, both the heat dissipation fan and the air inlet are located at the tail of the nitrogen generator, and the air outlet is in communication with the inflation pipeline.

[0014] Further, the number of the control buttons is several groups and is distributed in an array. A pressure gauge and a power switch are installed on one side of the nitrogen generator, and the partition bar is fixedly connected to the partition plate.

[0015] Compared with the above background art, the injection molding nitrogen filling device provided by the present application includes an injection molding machine, a blanking hopper, a blanking pipe, an injection molding pipeline and a partition plate. In order to remove oxygen from the material during the injection molding process of the injection molding machine, nitrogen is provided by a nitrogen generator, and then enters the inside of the partition plate through the inflation pipeline. Under the condition of being blocked by the partition bar, the material is fed along the blanking pipe while nitrogen is introduced on the other side, and the oxygen is discharged outside, so as to perform the oxygen removal operation and avoid generating bubbles during the injection molding process of the material.

[0016] The utility model provides an injection molding nitrogen filling device. Compared with the prior art, the following beneficial effects are achieved:

[0017] An injection molding nitrogen filling device, by arranging a nitrogen filling component between the blanking pipe and the injection molding pipeline. When the blanking pipe needs to discharge oxygen, nitrogen is generated by a nitrogen generator, enters the inside of the inflation pipeline from the inside of the air outlet, and then enters the inside of the partition plate. Under the blocking condition of the partition bar, the blanking pipe feeds the material while filling nitrogen, and the oxygen inside is squeezed out, so that when the material enters the injection molding pipeline for injection molding, no bubbles will be generated, and thus the injection molding effect of the finished product will not be affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of an injection molding nitrogen filling device;

[0019] Figure 2 is another perspective view of an injection molding nitrogen filling device;

[0020] Figure 3 is a side view of an injection molding nitrogen filling device;

[0021] Figure 4 is an injection molding nitrogen filling device Figure 3 side sectional view of A-A therein;

[0022] Figure 5 is an injection molding nitrogen filling device Figure 4 enlarged view of A therein.

[0023] In the figure: 1, injection molding machine; 2, blanking hopper; 21, blanking pipe; 3, injection molding pipeline; 4, nitrogen filling component; 41, partition board; 42, inflation pipeline; 43, nitrogen generator; 44, cooling fan; 45, air inlet; 46, air outlet; 47, control button; 48, partition strip; 5, control panel. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-5 , the present invention provides a technical solution for an injection molding nitrogen filling device: an injection molding nitrogen filling device includes an injection molding machine 1, and further includes: a blanking hopper 2, the blanking hopper 2 is located above the injection molding machine 1, and the bottom of the blanking hopper 2 is connected with a blanking pipe 21; a nitrogen filling component 4, the nitrogen filling component 4 includes a partition board 41, an inflation pipeline 42 connected to the outside of the partition board 41, a nitrogen generator 43, a cooling fan 44 and an air inlet 45 arranged on one side of the nitrogen generator 43, an air outlet 46 arranged at the upper end of the nitrogen generator 43, a control button 47 arranged on one side of the nitrogen generator 43, and a partition strip 48 arranged inside the partition board 41.

[0026] Among them, an injection molding pipeline 3, the injection molding pipeline 3 is located at the upper end of the injection molding machine 1, and the injection molding pipeline 3 is communicated with the blanking pipe 21, which is beneficial for blanking; a control panel 5, a support rod is arranged between the control panel 5 and the injection molding machine 1, and the support rod is connected to the injection molding machine 1 by bolts. An indicator light is arranged on the outside of the control panel 5, and a control circuit board and a battery are arranged inside it, which is beneficial for controlling the start and stop of the injection molding machine 1.

[0027] In addition, the partition board 41 is a hollow structure, the partition board 41 is communicated with both the blanking pipe 21 and the injection molding pipeline 3, the inflation pipeline 42 is communicated with the partition board 41, the cooling fan 44 and the air inlet 45 are both located at the tail of the nitrogen generator 43, the air outlet 46 is communicated with the inflation pipeline 42, the number of control buttons 47 is several groups and is distributed in an array, a pressure gauge and a power switch are installed on one side of the nitrogen generator 43, and the partition strip 48 is fixedly connected to the partition board 41, which is beneficial for introducing nitrogen into the inside of the partition board 41, and then during the blanking process of the blanking pipe 21, oxygen is pushed out and discharged.

[0028] During the working process of this injection molding nitrogen filling device, the user provides nitrogen through the nitrogen filling component 4 to enter the inside of the partition plate 41 and the blanking pipe 21, filling nitrogen into the falling material and pushing out the oxygen inside, so that no bubbles will be generated during the heating and injection molding of the material, improving the injection molding effect of the material.

[0029] It should be noted that through the setting of the nitrogen filling component 4, when the blanking pipe 21 needs to discharge oxygen, nitrogen is generated by the nitrogen generator 43 and enters the inside of the inflation pipeline 42 from the inside of the air outlet 46, and then enters the inside of the partition plate 41. Under the blocking of the partition strip 48, the blanking pipe 21 discharges materials while filling nitrogen, squeezing out the oxygen inside, so that no bubbles will be generated when the material enters the injection molding pipeline 3 for injection molding, thereby improving the aesthetics and hardness of the product.

Claims

1. An injection molding nitrogen filling device, comprising an injection molding machine (1), characterized in that: Also includes: A lower hopper (2), the lower hopper (2) being located at the upper part of the injection molding machine (1), and a lowering pipe (21) being connected to the bottom of the lower hopper (2); A nitrogen filling assembly (4), the nitrogen filling assembly (4) comprising a partition plate (41), a filling pipe (42) connected to the outside of the partition plate (41), a nitrogen generator (43), a cooling fan (44) and an air inlet (45) arranged on one side of the nitrogen generator (43), an air outlet (46) arranged at the upper end of the nitrogen generator (43), a control button (47) arranged on one side of the nitrogen generator (43), and a partition bar (48) arranged inside the partition plate (41).

2. The nitrogen filling device for injection molding according to claim 1, characterized in that: Also includes: An injection molding pipeline (3), wherein the injection molding pipeline (3) is located at the upper end of the injection molding machine (1), and the injection molding pipeline (3) is connected to a feed pipe (21).

3. The nitrogen filling device for injection molding according to claim 1, characterized in that: Also includes: A control panel (5), wherein a support rod is provided between the control panel (5) and the injection molding machine (1), and the support rod and the injection molding machine (1) are connected via bolts, an indicator light is provided on the outside of the control panel (5), and a control circuit board and a battery are provided inside the control panel (5).

4. The nitrogen filling device for injection molding according to claim 1, characterized in that: The partition plate (41) is a hollow structure; the partition plate (41) is in communication with the feed pipe (21) and the injection pipe (3); and the inflation pipe (42) is in communication with the partition plate (41).

5. The nitrogen filling device for injection molding according to claim 1, characterized in that: The cooling fan (44) and the air inlet (45) are both located at the rear of the nitrogen generator (43), and the air outlet (46) is in communication with the inflation pipe (42).

6. The nitrogen filling device for injection molding according to claim 1, characterized in that: The control buttons (47) are arranged in a plurality of groups and are arranged in an array. A pressure gauge and a power switch are installed on one side of the nitrogen generator (43). The partition bar (48) is fixedly connected to the partition plate (41).

Images