Dust removal device for feeding of injection molding machine

Abstract

The utility model relates to a dust removal device for feeding of an injection molding machine. The dust removal device comprises a rack and a material mixing barrel, a feeding pipe is arranged at the bottom of the material mixing barrel, an inclined feeding pipe is arranged at the top of the material mixing barrel, a feeding hopper is arranged at one end of the feeding pipe, a filtering sleeve is rotationally installed in the feeding pipe, and a dust suction assembly is arranged on the rack; the feeding hopper is used for feeding materials, the materials are conveyed to the mixing barrel through the feeding pipe to be mixed and then conveyed to the injection molding machine to be fed, during feeding, the rotating filtering sleeve screens dust of the materials, the dust suction assembly sucks dust into the feeding pipe, the materials roll in the rotating filtering sleeve to be subjected to dust removal, and the dust removal device has the good dust removal effect on the materials.

Description

Technical Field

[0001] This application relates to the field of injection molding machines, and more particularly to a dust removal device for feeding injection molding machines. Background Technology

[0002] A tool cart is a mobile device used for storing, transporting, and organizing tools and spare parts. The various plastic components of a tool cart are typically manufactured using an injection molding machine. An injection molding machine is an industrial piece of equipment used for the mass production of plastic products. Its working principle involves melting plastic raw materials at high temperatures and injecting them under high pressure into a closed mold cavity. After cooling and solidification, the product is formed. Injection molding machines typically use a feeding device for material handling.

[0003] In related technologies, please refer to the invention patent with publication number CN114654668A, which discloses an injection molding machine with uniform feeding. The machine includes a main body, a motor fixed to the top of the main body, and the output shaft of the motor passing through and rotatably mounted on the top of the main body. A through storage box is fixed to the top of the main body. A feeding device is provided inside the upper part of the main body. The feeding device includes a rotating rod and a fixed rod. The rotating rod is fixed to the bottom of the motor output shaft. A spiral blade is fixed to the outer side of the bottom of the rotating rod. A slotted conical disc is fixed to the outer side of the top of the rotating rod. The convex ball block of the slotted conical disc abuts against the U-shaped sliding rod, which makes the material at the outlet of the storage box reciprocate up and down, reducing the problem of material blockage.

[0004] When raw material granules are fed into injection molding machines, the granules often carry dust, debris, or other impurities, which are carried into the molten plastic and can easily cause defects on the surface of the finished product. Usually, the raw material is treated by blowing it once during feeding. However, by using only blowing, some of the impurities attached to the raw material are not easily blown off, resulting in poor dust removal effect. Utility Model Content

[0005] To address the problem that some impurities attached to raw materials are difficult to remove when dust is blown off, resulting in poor dust removal efficiency, this application provides a dust removal device for injection molding machine feeding.

[0006] The dust removal device for feeding an injection molding machine provided in this application adopts the following technical solution:

[0007] A dust removal device for feeding an injection molding machine includes a frame disposed on one side of the injection molding machine and a mixing tank disposed on the frame. The bottom of the mixing tank is provided with a feeding pipe for feeding material into the injection molding machine, and the top of the mixing tank is provided with a feeding pipe. A feeding hopper is provided at the end of the feeding pipe opposite to the mixing tank. The feeding pipe is inclined. A filter sleeve for screening dust from the material is rotatably installed inside the feeding pipe. A dust extraction assembly for sucking dust into the feeding pipe is disposed on the frame.

[0008] By adopting the above technical solution, the material is fed through the feeding hopper, transported to the mixing tank through the inclined feeding pipe, and then transported to the injection molding machine for feeding. During feeding, the rotating filter sleeve screens the material for dust, and the dust extraction component sucks dust into the feeding pipe. The material tumbles and removes dust in the rotating filter sleeve, resulting in a good dust removal effect on the material.

[0009] Optionally, a gear is rotatably installed inside the feed pipe, the filter sleeve is coaxially distributed with the feed pipe, a gear ring is provided on the outer peripheral wall of the filter sleeve, the gear meshes with one side of the gear ring, a motor is provided on the outside of the feed pipe, and the gear is coaxially connected to the output shaft of the motor.

[0010] By adopting the above technical solution, the motor drives the gear to rotate, the gear drives the meshing gear ring to rotate, and then drives the filter sleeve to rotate in the feed pipe, thereby achieving dust screening of the material and separating the dust in the material for subsequent dust collection.

[0011] Optionally, a brush rod is provided inside the feed pipe. The brush rod and the axis of the filter sleeve are distributed parallel to each other. Brush bristles are provided on one side of the brush rod, and the end of the brush bristles away from the brush rod is in contact with the outer peripheral wall of the filter sleeve.

[0012] By adopting the above technical solution, when the filter sleeve rotates, the bristles on the brush rod clean the outer peripheral wall of the filter sleeve, reducing dust adhesion and its impact on the dust screening effect.

[0013] Optionally, a screw is threaded onto the feed pipe, the brush rod is slidably connected to the feed pipe, the brush rod slides along the radial direction of the filter sleeve, and one end of the screw is rotatably connected to one side of the brush rod.

[0014] By adopting the above technical solution, when the filter sleeve needs to be cleaned, the screw is rotated to move the brush rod along the radius of the filter sleeve, which makes it easy to adjust the position of the brush rod and effectively clean the debris and dust on the filter sleeve.

[0015] Optionally, a guide rod is provided inside the feed pipe, the guide rod is distributed along the radial direction of the filter sleeve, and a return spring is sleeved on the guide rod, one end of the return spring being connected to one side of the brush rod.

[0016] By adopting the above technical solution, when the brush rod moves, the guide rod guides the brush rod so that after the brush rod slides along the radius of the filter sleeve, it returns to its original position with the help of the return spring.

[0017] Optionally, the dust extraction assembly includes a filter box and an exhaust fan. The filter box is mounted on the frame, and one side of the filter box is connected to the feed pipe via an air duct. The exhaust fan is located on the side of the filter box away from the air duct. The filter box contains a filter plate for filtering dust.

[0018] By adopting the above technical solution, the exhaust fan draws dust through the air duct, and the filter plate in the filter box filters the dust in the drawn-in dusty air, reducing the spread of dust into the external environment.

[0019] Optionally, the filter plates are provided in two parallel arrangement, the filter plate on the duct side has a larger mesh size than the filter plate on the exhaust fan side, the filter plates are slidably connected to the filter box, and the bottom of the filter box is provided with a dust discharge pipe for dust removal.

[0020] By adopting the above technical solution, after passing through filter plates and screens with different pore sizes in sequence, multi-stage filtration is achieved to improve the filtration effect. The filter plates can be slid out for easy disassembly, cleaning or replacement, and the dust discharge pipe can promptly discharge the accumulated dust after filtration.

[0021] Optionally, a rotating shaft is provided inside the feed tube, the rotating shaft is coaxially connected to the gear, a sliding rod is provided at one end of the rotating shaft, a striking block is provided at one end of the sliding rod, an abutment spring is sleeved on the sliding rod, one end of the abutment spring is connected to the rotating shaft, and the end of the abutment spring away from the rotating shaft is connected to the striking block.

[0022] By adopting the above technical solution, in the dust removal device for injection molding machine feeding, when the rotating shaft connected coaxially with the gear inside the feeding pipe rotates, it drives the sliding rod and the striking block to move. The abutting spring allows the striking block to maintain contact with the relevant parts and produce a striking effect, which can help clean the dust attached to the filter sleeve, enhance the dust screening effect of the filter sleeve, and improve the overall performance of the dust removal device.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By screening the material through the filter sleeve and sucking the dust into the feed pipe using the dust extraction component, dust, debris or other impurities on the raw material particles of the injection molding machine can be effectively removed, preventing them from being carried into the molten plastic, thereby reducing surface defects of the finished product.

[0025] 2. The motor-driven gear rotates the filter sleeve, improving dust screening efficiency;

[0026] 3. The filter box is equipped with two filter plates with different pore sizes to filter dust, which can achieve better dust filtration effect. The filter plates can slide for easy cleaning, and the dust discharge pipe at the bottom facilitates the discharge of dust. Attached Figure Description

[0027] Figure 1 This is a front view of this application.

[0028] Figure 2 This is a cross-sectional view of the feed pipe along the axial direction of this application.

[0029] Figure 3 This is a cross-sectional structural diagram of the feed pipe located at the rotating shaft in this application.

[0030] Figure 4 This is a cross-sectional structural diagram of the feed pipe located at the brush rod in this application.

[0031] Figure 5 This is an exploded structural diagram of the filter plate inside the filter box of this application.

[0032] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.

[0033] Reference numerals: 1. Frame; 2. Mixing hopper; 21. Feeding pipe; 3. Feeding pipe; 31. Through hole; 32. Gear; 33. Motor; 34. Brush rod; 341. Brush; 35. Guide rod; 351. Return spring; 36. Screw; 37. Rotating shaft; 38. Sliding rod; 381. Abutment spring; 39. Striking block; 4. Feed hopper; 5. Filter sleeve; 51. Gear ring; 6. Dust extraction assembly; 61. Filter box; 611. Sliding hole; 612. Dust discharge pipe; 62. Exhaust fan; 63. Air duct; 64. Filter plate. Detailed Implementation

[0034] The present application will be further described in detail below with reference to the accompanying drawings.

[0035] This application discloses a dust removal device for feeding an injection molding machine, referring to... Figure 1 and Figure 2The system includes a frame 1 mounted on one side of the injection molding machine and a mixing tank 2 vertically mounted on the frame 1. The bottom of the mixing tank 2 has a feeding pipe 21 for feeding material into the injection molding machine, and the top of the mixing tank 2 has an inlet pipe 3, which is inclined. The top of the inlet pipe 3 has a feeding hopper 4 for feeding material. A filter sleeve 5 for screening dust is rotatably installed inside the inlet pipe 3. A dust extraction assembly 6 is mounted on the frame 1 for sucking dust into the inlet pipe 3. Material enters the inlet pipe 3 through the feeding hopper 4 and is conveyed to the mixing tank 2 by the inclined inlet pipe 3. After mixing, the material is fed to the injection molding machine through the feeding pipe 21. During the feeding process, the rotating filter sleeve 5 screens the material for dust, and the dust extraction assembly 6 sucks dust into the inlet pipe 3, achieving dust removal. The material tumbles in the rotating filter sleeve 5, allowing for better dust separation and resulting in good dust removal efficiency.

[0036] Reference Figure 3 and Figure 4 The feed pipe 3 has through holes 31 at both ends along its length. A filter sleeve 5 is rotatably installed at the through holes 31 of the feed pipe 3 and is coaxially distributed with the feed pipe 3. The filter sleeve 5 is cylindrical, and a coaxially distributed gear ring 51 is fixedly installed on the outer peripheral wall of the filter sleeve 5. A gear 32 is rotatably installed inside the feed pipe 3, and the gear 32 meshes with the gear ring 51 on one side. A motor 33 is installed on the outer side of the feed pipe 3 at one end of the feed hopper 4, and the gear 32 is coaxially connected to the output shaft of the motor 33. When the motor 33 starts, the output shaft of the motor 33 drives the gear 32 to rotate, the gear 32 drives the meshing gear ring 51 to rotate, and thus drives the filter sleeve 5 to rotate inside the feed pipe 3, thereby achieving dust screening of the material.

[0037] Reference Figure 5 The dust extraction assembly 6 includes a filter box 61 and an exhaust fan 62. The filter box 61 is mounted on the frame 1 and is square in shape. One side of the filter box 61 is connected to the downward-facing side of the feed pipe 3 via an air duct 63. The exhaust fan 62 is located on the side of the filter box 61 away from the air duct 63. The filter box 61 contains a filter plate 64 for filtering dust. The exhaust fan 62 draws in dust through the air duct 63, and the filter plate 64 in the filter box 61 filters the dust in the drawn-in dusty air, reducing the spread of dust into the external environment.

[0038] Reference Figure 5Two filter plates 64 are vertically arranged and parallel to each other, spaced apart along the length of the filter box 61. The filter plate 64 on the side of the air duct 63 has a larger mesh size than the filter plate 64 on the side of the exhaust fan 62. Dust-laden air passes through the filter plates 64 with different mesh sizes in sequence, achieving multi-stage filtration and improving the filtration effect. A sliding hole 611 is provided on one side of the filter box 61, through which the filter plates 64 are slidably connected to the filter box 61, facilitating the disassembly, cleaning, or replacement of the filter plates 64. A dust discharge pipe 612 is provided at the bottom of the filter box 61 for timely discharge of filtered dust accumulation.

[0039] Reference Figure 4 A brush rod 34 is installed inside the feed pipe 3 and on the outside of the filter sleeve 5. The brush rod 34 is parallel to the axis of the filter sleeve 5. Brush bristles 341 are provided on the side of the brush rod 34 facing the filter sleeve 5. The end of the brush bristles 341 away from the brush rod 34 is in contact with the outer peripheral wall of the filter sleeve 5. Several brush bristles 341 are distributed along the length of the brush rod 34. When the filter sleeve 5 rotates, the brush bristles 341 on the brush rod 34 clean the outer peripheral wall of the filter sleeve 5, reducing dust adhesion and affecting the dust screening effect.

[0040] Reference Figure 4 The brush rod 34 is slidably connected to the feed pipe 3. The brush rod 34 slides along the radial direction of the filter sleeve 5. A guide rod 35 is provided inside the feed pipe 3, distributed along the radial direction of the filter sleeve 5. The guide rod 35 is located at both ends of the brush rod 34 along its length. A return spring 351 is sleeved on the guide rod 35, and one end of the return spring 351 is connected to one side of the brush rod 34. A screw 36 is threadedly installed on the side wall of the feed pipe 3. One end of the screw 36 is located outside the feed pipe 3, and the other end of the screw 36 located inside the feed pipe 3 is rotatably connected to one side of the brush rod 34.

[0041] When the filter sleeve 5 needs to be cleaned, the screw 36 is rotated to move the brush rod 34 along the radius of the filter sleeve 5, which facilitates the adjustment of the position of the brush rod 34. The guide rod 35 guides the brush rod 34 so that after the brush rod 34 slides along the radius of the filter sleeve 5, it returns to its original position with the help of the return spring 351.

[0042] Reference Figure 3A rotating shaft 37 is rotatably installed inside the feed pipe 3. The rotating shaft 37 is coaxially connected to the gear 32. A sliding rod 38 is slidably installed at one end of the rotating shaft 37. The sliding rod 38 is perpendicular to the rotating shaft 37. A striking block 39 is provided at one end of the sliding rod 38. An abutment spring 381 is sleeved on the sliding rod 38. One end of the abutment spring 381 is connected to the rotating shaft 37, and the end of the abutment spring 381 away from the rotating shaft 37 is connected to the striking block 39. When the rotating shaft 37, which is coaxially connected to the gear 32 inside the feed pipe 3, rotates, it drives the sliding rod 38 and the striking block 39 to move. The abutment spring 381 ensures that the striking block 39 remains in contact with the relevant components and produces a striking effect, which can help clean the dust attached to the filter sleeve 5, enhance the dust screening effect of the filter sleeve 5, and improve the overall performance of the dust removal device.

[0043] The implementation principle of the dust removal device for injection molding machine feeding in this application embodiment is as follows: the dust removal device for injection molding machine feeding achieves effective dust removal of materials by setting up an inclined feeding pipe 3, a rotating filter sleeve 5, a brush rod 34, a dust extraction component 6, and a striking block 39.

[0044] During the feeding process, the rotation of the filter sleeve 5 causes the material to tumble, facilitating dust separation. The brush rod 34 cleans the outer wall of the filter sleeve 5 to prevent dust from adhering and affecting the dust screening effect. The dust extraction component 6 sucks away the separated dust and performs multi-stage filtration to prevent dust diffusion. The knocking action of the knocking block 39 assists in cleaning the dust on the filter sleeve 5.

[0045] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A dust removal device for feeding an injection molding machine, comprising a frame (1) disposed on one side of the injection molding machine and a mixing tank (2) disposed on the frame (1), wherein the bottom of the mixing tank (2) is provided with a feeding pipe (21) for feeding material to the injection molding machine, characterized in that: The mixing tank (2) is provided with a feed pipe (3) at the top. A feed hopper (4) is provided at one end of the feed pipe (3) away from the mixing tank (2). The feed pipe (3) is inclined. A filter sleeve (5) for screening the material is rotatably installed inside the feed pipe (3). A dust extraction assembly (6) for sucking dust into the feed pipe (3) is provided on the frame (1).

2. The dust removal device for injection molding machine feeding according to claim 1, characterized in that: A gear (32) is rotatably installed inside the feed pipe (3). The filter sleeve (5) is coaxially distributed with the feed pipe (3). A gear ring (51) is provided on the outer peripheral wall of the filter sleeve (5). The gear (32) meshes with one side of the gear ring (51). A motor (33) is provided on the outside of the feed pipe (3). The gear (32) is coaxially connected with the output shaft of the motor (33).

3. The dust removal device for feeding an injection molding machine according to claim 1, characterized in that: The feed pipe (3) is provided with a brush rod (34), the brush rod (34) and the filter sleeve (5) are distributed parallel to each other, and a brush bristle (341) is provided on one side of the brush rod (34). The end of the brush bristle (341) away from the brush rod (34) is attached to the outer peripheral wall of the filter sleeve (5).

4. A dust removal device for feeding an injection molding machine according to claim 3, characterized in that: A screw (36) is threaded onto the feed pipe (3). The brush rod (34) is slidably connected to the feed pipe (3). The brush rod (34) slides along the radius of the filter sleeve (5). One end of the screw (36) is rotatably connected to one side of the brush rod (34).

5. A dust removal device for feeding an injection molding machine according to claim 3, characterized in that: A guide rod (35) is provided inside the feed pipe (3). The guide rod (35) is distributed along the radial direction of the filter sleeve (5). A reset spring (351) is sleeved on the guide rod (35). One end of the reset spring (351) is connected to one side of the brush rod (34).

6. A dust removal device for feeding an injection molding machine according to claim 1, characterized in that: The dust extraction assembly (6) includes a filter box (61) and an exhaust fan (62). The filter box (61) is mounted on the frame (1). One side of the filter box (61) is connected to the feed pipe (3) through an air duct (63). The exhaust fan (62) is mounted on the side of the filter box (61) away from the air duct (63). The filter box is equipped with a filter plate (64) for filtering dust.

7. A dust removal device for feeding an injection molding machine according to claim 6, characterized in that: The filter plate (64) is provided in two parallel pieces. The filter plate (64) on the side of the air duct (63) has a larger filter screen diameter than the filter plate (64) on the side of the exhaust fan (62). The filter plate (64) is slidably connected to the filter box (61). The bottom of the filter box (61) is provided with a dust discharge pipe (612) for dust discharge.

8. A dust removal device for feeding an injection molding machine according to claim 2, characterized in that: The feed pipe (3) is provided with a rotating shaft (37), which is coaxially connected to the gear (32). A sliding rod (38) is provided at one end of the rotating shaft (37), and a striking block (39) is provided at one end of the sliding rod (38). An abutment spring (381) is sleeved on the sliding rod (38). One end of the abutment spring (381) is connected to the rotating shaft (37), and the end of the abutment spring (381) away from the rotating shaft (37) is connected to the striking block (39).

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