Injection molding feeding barrel capable of preventing dust from flying

Abstract

The utility model discloses an injection molding material supply barrel capable of preventing dust from flying, which comprises a material barrel, a fan, a first air pipe, a heating device and a circulating filtering and collecting device, the fan is communicated with the material barrel through the first air pipe, and the heating device is arranged on the first air pipe; the circulating filtering and collecting device comprises a second air pipe, a dust filtering barrel and a third air pipe, a sealing barrel cover is arranged at the top of the material barrel, the sealing barrel cover is communicated with the dust filtering barrel through the second air pipe, and the dust filtering barrel is communicated with the fan through the third air pipe; the dust filtering barrel comprises an outer barrel body, a net type filter and a dust collecting groove, the net type filter is suspended in the outer barrel body, the dust collecting groove is formed in the outer barrel body, the second air pipe is communicated with the outer barrel body, an air outlet of the second air pipe is aligned to the net type filter, and the third air pipe extends into the net type filter. According to the injection molding feeding barrel, dust in the barrel can be continuously filtered, and the dust is effectively prevented from flying in the production process.

Description

Technical Field

[0001] This utility model relates to dust removal equipment, and in particular to an injection molding feed hopper that prevents dust from flying. Background Technology

[0002] Injection molding is a cyclical process. Each cycle mainly includes: metered feeding—melting and plasticizing—pressure injection—mold filling and cooling—mold opening and part removal. After removing the plastic part, the mold is closed again for the next cycle. During injection molding, the hopper supplies material to the extruder. Currently, raw materials usually require drying before processing. Existing methods use fans to send hot air into the hopper to dry the raw materials. However, because the raw materials contain small dust particles, dust can fly during the drying process, potentially harming worker health and affecting the workshop environment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an injection molding feed hopper that prevents dust from flying. This injection molding feed hopper can continuously filter the dust in the hopper and effectively prevent dust from flying during the production process.

[0004] To solve the above technical problems, the following technical solution is adopted:

[0005] A material feeding hopper for preventing dust from flying includes a material hopper, a fan, a first air duct, and a heating device. The material hopper has an air inlet at its lower part and a feeding port at its lower end. The air outlet of the fan is connected to the air inlet of the material hopper through the first air duct. The heating device is mounted on the first air duct. The hopper is characterized by further including a circulating filtration and collection device, which includes a second air duct, a dust filter hopper, and a third air duct. The top of the material hopper has a sealed lid with an air outlet. The air outlet of the sealed lid is connected to the air inlet of the dust filter hopper through the second air duct. The air outlet of the dust filter hopper is connected to the air inlet of the fan through the third air duct. The dust filter hopper includes an outer body, a mesh filter, and a dust collection trough. The mesh filter is suspended in the outer body. The dust collection trough is detachably installed on the outer body and connected to the lower end of the outer body. The second air duct is connected to the outer body, and its outlet is aligned with the mesh filter. The third air duct extends into the mesh filter.

[0006] When in use, the aforementioned injection molding feed hopper supplies material to the injection molding machine. Simultaneously, a blower blows air into the inner cavity of the hopper through the first air duct, and dust in the hopper is sent out from the air outlet of the hopper with the air. The dust is then sent into the dust filter hopper through the second air duct. When blown into the dust filter hopper, the air and dust first come into contact with the mesh filter. The dust is blocked by the mesh filter and slides down the side wall of the mesh filter and the outer barrel into the dust collection tank, while the air passes smoothly through the mesh filter and enters the blower through the third air duct. Finally, the blower blows air back into the inner cavity of the hopper through the first air duct, and the heating device heats the air, forming a circulation. This injection molding feed hopper can perform dust removal on the hopper, effectively preventing dust from flying during the production process. At the same time, when filtering and collecting dust, a mesh filter suspended inside the outer hopper is used for filtration. The mesh filter does not come into contact with the bottom of the outer hopper, so dust will not cover the mesh filter when it accumulates, and the dust can also slide smoothly into the dust collection tank without being blocked by the mesh filter, which can effectively improve the filtration effect.

[0007] In a preferred embodiment, the mesh filter includes a mesh filter cartridge and a mesh bottom wall. The upper end of the mesh filter cartridge is connected to the top of the outer casing, and the mesh bottom wall is located at the bottom of the mesh filter cartridge and covers the lower opening of the mesh filter cartridge. With this configuration, the mesh filter can be suspended within the outer casing, and the mesh bottom wall also functions as a filter, preventing some dust from entering the third duct from below the mesh filter cartridge.

[0008] In a further preferred embodiment, the dust filter bucket also includes an outer bucket cover, the top of which has an opening. The outer bucket cover is detachably mounted on the outer bucket and covers the opening. The upper end of the mesh filter cartridge is connected to the outer bucket cover, and the third air duct passes through the outer bucket cover and extends into the mesh filter cartridge. When cleaning of the outer bucket and the mesh filter is required, simply removing the outer bucket cover allows the mesh filter to be removed along with the outer bucket, exposing the opening of the outer bucket.

[0009] In a further preferred embodiment, the air inlet of the dust filter bucket is located in the middle of the side wall of the dust filter bucket, and the air inlet of the dust filter bucket faces the mesh filter cartridge. When air and dust enter the outer bucket, they can directly contact the mesh filter cartridge and be filtered.

[0010] In a further preferred embodiment, the upper middle part of the outer barrel is cylindrical; the mesh filter is located in the upper middle part of the outer barrel, and there is a gap between the mesh filter cartridge and the inner wall of the outer barrel. With this arrangement, dust, after being blocked by the mesh filter, can slide down into the dust collection trough along the gap under the action of wind, effectively preventing dust accumulation.

[0011] In a further preferred embodiment, the lower part of the outer barrel is funnel-shaped, wider at the top and narrower at the bottom. Dust can slide down the inner wall of the funnel-shaped outer barrel into the dust collection trough.

[0012] In a preferred embodiment, the air outlet of the material hopper is located at the upper end of the hopper, and the air inlet of the hopper is located in the middle of the side wall of the hopper. This design allows the air to circulate within the hopper, ensuring that dust from various locations is blown up and carried away, effectively improving dust removal efficiency.

[0013] The aforementioned first air duct is generally a metal air duct, and the heating device is generally an electric heating element, which is wrapped around the outside of the metal air duct.

[0014] The beneficial effects of this utility model are: this injection molding feed hopper can continuously filter the dust in the hopper, effectively preventing dust from flying during the production process. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the injection molding feed barrel in an embodiment of this utility model;

[0016] Figure 2 This is a cross-sectional view of the mesh filter in an embodiment of this utility model. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0018] like Figure 1-2 The injection molding feed hopper shown includes a feed hopper 1, a fan 2, a first air duct 3, a heating device 4, and a circulating filter collection device. The feed hopper 1 has an air inlet at its lower part and a feed outlet at its lower end. The air outlet of the fan 2 is connected to the air inlet of the feed hopper 1 via the first air duct 3. The heating device 4 is mounted on the first air duct 3. The circulating filter collection device includes a second air duct 5, a dust filter 6, and a third air duct 7. The top of the feed hopper 1 has a sealing cover 101 with an air outlet. The air outlet of the sealing cover 101 is connected to the feed hopper 1 via a fan 2, a first air duct 3, a second air duct 4, a third air duct 5, a fourth air duct 6, and a fifth air duct 7. The top of the feed hopper 1 has a sealing cover 101 with an air outlet. The second air duct 5 is connected to the air inlet of the dust filter 6, and the air outlet of the dust filter 6 is connected to the air inlet of the fan 2 through the third air duct 7. The dust filter 6 includes an outer barrel 601, a mesh filter 602 and a dust collection tank 603. The mesh filter 602 is suspended in the outer barrel 601. The dust collection tank 603 is detachably installed on the outer barrel 601 and connected to the lower end of the outer barrel 601. The second air duct 5 is connected to the outer barrel 601, and the air outlet of the second air duct 5 is aligned with the mesh filter 602. The third air duct 7 extends into the interior of the mesh filter 602.

[0019] When the aforementioned injection molding feed hopper is in use, the hopper 1 supplies material to the injection molding machine; simultaneously, the blower 2 blows air into the inner cavity of the hopper 1 through the first air duct 3, and the dust in the hopper 1 is sent out from the air outlet of the hopper 1 with the air; the dust is sent into the dust filter 6 through the second air duct 5. When blown into the dust filter 6, the air and dust can first come into contact with the mesh filter 602. The dust is blocked by the mesh filter 602 and slides down the side wall of the mesh filter 602 and the outer barrel 601 into the dust collection tank 603, while the air can pass smoothly through the mesh filter 602 and enter the blower 2 through the third air duct 7; finally, the blower 2 blows the air back into the inner cavity of the hopper 1 through the first air duct 3, and the heating device 4 heats the air to form a circulation. This injection molding feed hopper can remove dust from the feed hopper 1, effectively preventing dust from flying during production. At the same time, when filtering and collecting dust, a mesh filter 602 suspended inside the outer barrel 601 is used for filtration. The mesh filter 602 does not contact the bottom of the outer barrel 601, so the mesh filter 602 will not be covered when dust accumulates, and the dust can also slide smoothly into the dust collection tank 603 without being blocked by the mesh filter 602, which can effectively improve the filtration effect.

[0020] The mesh filter 602 includes a mesh filter cartridge 6021 and a mesh bottom wall 6022. The upper end of the mesh filter cartridge 6021 is connected to the top of the outer barrel 601, and the mesh bottom wall 6022 is located at the bottom of the mesh filter cartridge 6021 and covers the lower opening of the mesh filter cartridge 6021. With this configuration, the mesh filter 602 can be suspended in the outer barrel 601, and the mesh bottom wall 6022 can also play a filtering role, preventing some dust from entering the third air duct 7 from below the mesh filter cartridge 6021.

[0021] The dust filter canister 6 also includes an outer canister cover 604. The top of the outer canister 601 has an opening. The outer canister cover 604 is detachably installed on the outer canister 601 and covers the opening of the outer canister 601. The upper end of the mesh filter cartridge 6021 is connected to the outer canister cover 604. The third air duct 7 passes through the outer canister cover 604 and extends into the mesh filter cartridge 6021. When it is necessary to clean the outer canister 601 and the mesh filter 602, simply remove the outer canister cover 604 to remove the mesh filter 602, exposing the opening of the outer canister 601.

[0022] The air inlet of the dust filter 6 is located in the middle of the side wall of the dust filter 6, and the air inlet of the dust filter 6 faces the mesh filter cartridge 6021. When the air and dust enter the outer barrel 601, they can directly contact the mesh filter cartridge 6021 and be filtered.

[0023] The upper middle part of the outer barrel 601 is cylindrical; the mesh filter 602 is located in the upper middle part of the outer barrel 601, and there is a gap between the mesh filter cartridge 6021 and the inner side wall of the outer barrel 601. With this arrangement, after the dust is blocked by the mesh filter 602, it can slide down into the dust collection tank 603 along the gap under the action of the wind, which can effectively prevent dust accumulation.

[0024] The lower part of the outer barrel 601 is funnel-shaped, wider at the top and narrower at the bottom. Dust can slide down the inner wall of the funnel-shaped outer barrel 601 into the dust collection tank 603.

[0025] The air outlet of the material hopper 1 is located at the top of the material hopper 1, and the air inlet of the material hopper 1 is located in the middle of the side wall of the material hopper 1. In this way, the air can form a swirling airflow in the material hopper 1, ensuring that dust from all locations is blown up and carried away, effectively improving dust removal efficiency.

[0026] The first air duct 3 mentioned above is a metal air duct, and the heating device 4 is an electric heating element, which is wrapped around the outside of the metal air duct.

Claims

1. A material feeding hopper for preventing dust from flying, comprising a hopper, a fan, a first air duct, and a heating device, wherein an air inlet is provided at the lower part of the hopper, a material feeding port is provided at the lower end of the hopper, the air outlet of the fan is connected to the air inlet of the hopper through the first air duct, and the heating device is disposed on the first air duct, characterized in that: It also includes a circulating filtration and collection device, which includes a second air duct, a dust filter bucket, and a third air duct. The top of the bucket is equipped with a sealed lid with an air outlet. The air outlet of the sealed lid is connected to the air inlet of the dust filter bucket through the second air duct. The air outlet of the dust filter bucket is connected to the air inlet of the fan through the third air duct. The dust filter bucket includes an outer bucket body, a mesh filter, and a dust collection tank. The mesh filter is suspended in the outer bucket body. The dust collection tank is detachably installed on the outer bucket body and connected to the lower end of the outer bucket body. The second air duct is connected to the outer bucket body, and the air outlet of the second air duct is aligned with the mesh filter. The third air duct extends into the interior of the mesh filter.

2. The injection molding feed hopper for preventing dust from flying as described in claim 1, characterized in that: The mesh filter includes a mesh filter cartridge and a mesh bottom wall. The upper end of the mesh filter cartridge is connected to the top of the outer barrel, and the mesh bottom wall is located at the bottom of the mesh filter cartridge and covers the lower opening of the mesh filter cartridge.

3. The injection molding feed hopper for preventing dust from flying as described in claim 2, characterized in that: The dust filter barrel also includes an outer barrel cover, the top of which has an upper opening. The outer barrel cover is detachably installed on the outer barrel and covers the upper opening of the outer barrel. The upper end of the mesh filter cartridge is connected to the outer barrel cover, and the third air duct passes through the outer barrel cover and extends into the mesh filter cartridge.

4. The injection molding feed hopper for preventing dust from flying as described in claim 2, characterized in that: The air inlet of the dust filter bucket is located in the middle of the side wall of the dust filter bucket, and the air inlet of the dust filter bucket faces the mesh filter cylinder.

5. The injection molding feed hopper for preventing dust from flying as described in claim 2, characterized in that: The upper middle part of the outer barrel is cylindrical; the mesh filter is located in the upper middle part of the outer barrel, and there is a gap between the mesh filter cylinder and the inner sidewall of the outer barrel.

6. The injection molding feed hopper for preventing dust from flying as described in claim 5, characterized in that: The lower part of the outer barrel is funnel-shaped, wider at the top and narrower at the bottom.

7. The injection molding feed hopper for preventing dust from flying as described in claim 1, characterized in that: The air outlet of the material barrel is located at the upper end of the material barrel, and the air inlet of the material barrel is located in the middle of the side wall of the material barrel.

Images