Feed filtering device and injection molding system with same

Abstract

The utility model relates to the technical field of injection molds, in particular to a feed filtering device and an injection molding system with the feed filtering device, which comprises a connecting pipe, an adjusting cylinder, a filtering plate, a sealing plate, an adjusting mechanism and a resetting mechanism, the connecting pipe is communicated with a mounting cylinder; the adjusting cylinder is rotatably arranged in the mounting cylinder, the adjusting cylinder is fixedly connected with guide plates, and two groups of guide plates are arranged in pairs; the number of the filter plates is two; the two sealing plates are arranged between the two guide plates in a sliding mode. The adjusting mechanism is arranged in the adjusting cylinder and is in transmission connection with the sealing plate; the multiple sets of reset mechanisms are arranged and arranged in the adjusting cylinder. According to the utility model, through the matched arrangement of the adjusting cylinder, the sealing plate and the filter plates, when the filter plates need to be cleaned, the positions of the two filter plates can be exchanged by rotating the adjusting rod, and the filter plate which is just rotated out can be put into standby application after being cleaned, so that the operation is simple, time and labor are saved, and the operation efficiency of an injection molding system is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to a feed filter device and an injection molding system having the same. Background Technology

[0002] Injection molding is a widely used production process in modern industrial manufacturing. It involves pressing, injecting, and cooling molten plastic raw materials to produce the desired plastic products. The entire process is usually carried out by an injection molding machine. Plastic products are diverse and widely used. To control costs, many injection molding manufacturers often reprocess recycled plastic waste into raw materials and then perform hot-melt treatment. However, this recycled plastic inevitably contains many impurities. If these impurities are not removed in time, they will affect the quality of the plastic products and also damage production equipment such as injection molding machines.

[0003] Chinese Patent No. CN213533543U discloses a feeding filter device and injection molding system for an injection molding machine. The feeding filter device includes a feeding section and a filter section extending downwards integrally from the feeding section. The feeding section has a downwardly extending feeding channel. The filter section has several circumferentially distributed filter channels and several guide channels adjacent to the filter channels. The top of each filter channel communicates with the feeding channel to introduce material. Each filter channel is connected to the adjacent guide channel through several filter slots, allowing material to move laterally into the guide channel via these slots. Compared to existing technologies, this invention, through the arrangement of filter channels and filter slots, ensures that material enters the guide channel only after passing through the filter channel, thus undergoing filtration before entering the hot runner. This effectively avoids or reduces the entry of impurities into the hot runner, improving the problem of valve needle and nozzle blockage caused by impurities.

[0004] However, the above technical solution has the following shortcomings: Although the filter device can filter the material entering the guide channel, the filtered impurities still remain in the filter device, which can easily clog the filter device and affect the filtration efficiency. The filter device needs to be disassembled and cleaned regularly, which is not only time-consuming and labor-intensive, but also affects the operation of the entire injection molding system. Utility Model Content

[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a feeding filter device and an injection molding system having the same.

[0006] The technical solution of this utility model: On the one hand, this utility model proposes a feeding filter device, comprising:

[0007] A connecting pipe, which is connected to an installation cylinder;

[0008] The adjusting cylinder is rotatably mounted inside the mounting cylinder. The adjusting cylinder is fixedly connected to a guide plate, and the guide plates are arranged in pairs.

[0009] There are two filter plates, which are symmetrically arranged on the regulating cylinder.

[0010] The sealing plate is provided in two sets. The sealing plate is slidably disposed between the two guide plates, and one end of the sealing plate extends into the interior of the regulating cylinder.

[0011] An adjusting mechanism is installed inside the adjusting cylinder. The adjusting mechanism is connected to the sealing plate via a transmission, and one end of the adjusting mechanism extends to the outside of the adjusting cylinder.

[0012] The reset mechanism is provided in multiple sets. The reset mechanism is located inside the adjusting cylinder. One end of the reset mechanism is connected to the adjusting cylinder, and the other end of the reset mechanism is connected to the sealing plate.

[0013] Preferably, the adjusting mechanism includes an adjusting rod and a linkage rod. The adjusting rod is rotatably disposed inside the adjusting cylinder, and one end of the adjusting rod is rotatably connected to the inner wall of the adjusting cylinder. Multiple linkage rods are provided, one end of which is rotatably connected to the adjusting rod, and the other end of which is rotatably connected to the sealing plate.

[0014] Preferably, the other end of the adjusting rod passes through the adjusting cylinder and the mounting cylinder and extends to the outside of the mounting cylinder, and an adjusting handwheel is fixedly connected to the end of the adjusting rod located outside the mounting cylinder.

[0015] Preferably, each set of reset mechanisms includes a support plate and a reset spring; the support plate is fixedly connected to the inner wall of the adjusting cylinder, one end of the reset spring is fixedly connected to the support plate, and the other end of the reset spring is fixedly connected to the sealing plate.

[0016] Preferably, the inner wall of the mounting cylinder is provided with a limiting groove that matches the sealing plate. The sealing plate slides into the limiting groove under the action of the reset mechanism to seal the mounting cylinder.

[0017] On the other hand, this utility model also proposes an injection molding system having the above-mentioned feed filtration device, comprising:

[0018] The raw material box has a discharge valve at its outlet, and the outlet of the discharge valve is connected to the top of the connecting pipe.

[0019] The injection molding machine is located below the raw material box, and its inlet is connected to the bottom of the connecting pipe.

[0020] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0021] This utility model utilizes the coordinated arrangement of the adjusting cylinder, sealing plate, and filter plate. The filter plates on both sides of the adjusting cylinder are designed with one in use and one in reserve. When the filter plates need to be cleaned, the positions of the two filter plates can be switched by rotating the adjusting rod. After cleaning the filter plate that has just been rotated out, it can be put into standby. The operation is simple, time-saving, and labor-saving, effectively improving the operating efficiency of the injection molding system. Attached Figure Description

[0022] Figure 1 This is a perspective view of one embodiment of the present invention;

[0023] Figure 2 This is a perspective view of the connecting tube in one embodiment of the present invention;

[0024] Figure 3 This is a cross-sectional view of the connecting pipe in one embodiment of the present invention;

[0025] Figure 4 This is a cross-sectional view of the adjusting cylinder in one embodiment of the present invention;

[0026] Figure 5 This utility model Figure 4 A magnified 3D view of point A in the middle.

[0027] Reference numerals in the attached drawings: 1. Connecting pipe; 2. Mounting cylinder; 3. Adjusting cylinder; 4. Adjusting mechanism; 41. Adjusting rod; 42. Linkage rod; 43. Adjusting handwheel; 5. Reset mechanism; 51. Support plate; 52. Reset spring; 6. Guide plate; 7. Filter plate; 8. Sealing plate; 9. Limiting groove; 10. Raw material box; 11. Discharge valve; 12. Injection molding machine. Detailed Implementation

[0028] Example 1

[0029] like Figure 2-5 As shown, the feeding and filtering device proposed in this utility model includes a connecting pipe 1, an adjusting cylinder 3, a filter plate 7, a sealing plate 8, an adjusting mechanism 4, and a reset mechanism 5.

[0030] Connecting pipe 1 is connected to mounting cylinder 2;

[0031] The adjusting cylinder 3 is rotatably installed inside the mounting cylinder 2. The adjusting cylinder 3 is fixedly connected to the guide plate 6. The guide plates 6 are arranged in pairs and there are two sets.

[0032] There are two filter plates 7, which are symmetrically arranged on the regulating cylinder 3.

[0033] Two sets of sealing plates 8 are provided. The sealing plates 8 are slidably disposed between two guide plates 6. One end of the sealing plate 8 extends into the interior of the adjusting cylinder 3. The inner wall of the mounting cylinder 2 is provided with a limiting groove 9 that is adapted to the sealing plate 8.

[0034] The adjusting mechanism 4 is installed inside the adjusting cylinder 3. The adjusting mechanism 4 is connected to the sealing plate 8 in a transmission manner. One end of the adjusting mechanism 4 extends to the outside of the adjusting cylinder 3.

[0035] Multiple sets of reset mechanisms 5 are provided. The reset mechanisms 5 are located inside the adjusting cylinder 3. One end of the reset mechanism 5 is connected to the adjusting cylinder 3, and the other end of the reset mechanism 5 is connected to the sealing plate 8.

[0036] like Figure 2-4 As shown, the adjustment mechanism 4 includes an adjustment rod 41 and a linkage rod 42. The adjustment rod 41 is rotatably disposed inside the adjustment cylinder 3. One end of the adjustment rod 41 is rotatably connected to the inner wall of the adjustment cylinder 3. Multiple linkage rods 42 are provided. One end of the linkage rod 42 is rotatably connected to the adjustment rod 41, and the other end of the linkage rod 42 is rotatably connected to the sealing plate 8. The other end of the adjustment rod 41 passes through the adjustment cylinder 3 and the mounting cylinder 2 and extends to the outside of the mounting cylinder 2. An adjustment handwheel 43 is fixedly connected to the end of the adjustment rod 41 located outside the mounting cylinder 2.

[0037] like Figure 4-5 As shown, each set of reset mechanisms 5 includes a support plate 51 and a reset spring 52; the support plate 51 is fixedly connected to the inner wall of the adjusting cylinder 3, one end of the reset spring 52 is fixedly connected to the support plate 51, and the other end of the reset spring 52 is fixedly connected to the sealing plate 8.

[0038] Example 2

[0039] like Figure 1 As shown, the injection molding system with the above-mentioned feed filtration device proposed in this utility model further includes:

[0040] The raw material box 10 has a discharge valve 11 at its outlet, and the outlet of the discharge valve 11 is connected to the top end of the connecting pipe 1.

[0041] The injection molding machine 12 is located below the raw material box 10, and the inlet of the injection molding machine 12 is connected to the bottom end of the connecting pipe 1.

[0042] When the injection molding system is operating normally, the discharge valve 11 is open, and the raw material in the raw material box 10 flows through the connecting pipe 1 and is filtered by the filter plate 7 before entering the injection molding machine 12. The injection molding machine 12 operates to perform injection molding. When it is necessary to clean the filter plate 7, the discharge valve 11 is closed, and the adjusting handwheel 43 is turned to drive the adjusting rod 41 to rotate. The rotation of the adjusting rod 41 drives the sealing plate 8 to slide out of the limit groove 9 through the linkage rod 42. Continue to turn the adjusting handwheel 43 and the adjusting rod 41 so that the working filter plate 7 rotates out of the connecting pipe 1, and another filter plate 7 is put into use at the same time. Release the adjusting handwheel 43, and the sealing plate 8 slides into the limit groove 9 under the action of the return spring 52 to seal the mounting cylinder 2. Open the discharge valve 11, and the raw material box 10 discharges normally. The injection molding machine 12 performs injection molding normally. After cleaning the filter plate 7 that has just rotated out, it can be put into standby.

[0043] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A feed filter device, characterized in that, include: A connecting pipe (1) is connected to an installation cylinder (2); The adjusting cylinder (3) is rotatably set inside the mounting cylinder (2). The adjusting cylinder (3) is fixedly connected to the guide plate (6). The guide plates (6) are arranged in pairs and there are two sets. There are two filter plates (7), which are symmetrically arranged on the regulating cylinder (3); The sealing plate (8) is provided in two sets. The sealing plate (8) is slidably disposed between the two guide plates (6). One end of the sealing plate (8) extends into the interior of the regulating cylinder (3). An adjustment mechanism (4) is installed inside the adjustment cylinder (3). The adjustment mechanism (4) is connected to the sealing plate (8) in a transmission manner. One end of the adjustment mechanism (4) extends to the outside of the adjustment cylinder (3). The reset mechanism (5) is provided in multiple sets. The reset mechanism (5) is located inside the regulating cylinder (3). One end of the reset mechanism (5) is connected to the regulating cylinder (3), and the other end of the reset mechanism (5) is connected to the sealing plate (8).

2. The feed filter device according to claim 1, characterized in that, The adjustment mechanism (4) includes an adjustment rod (41) and a linkage rod (42). The adjustment rod (41) is rotatably disposed inside the adjustment cylinder (3). One end of the adjustment rod (41) is rotatably connected to the inner wall of the adjustment cylinder (3). Multiple linkage rods (42) are provided. One end of the linkage rod (42) is rotatably connected to the adjustment rod (41), and the other end of the linkage rod (42) is rotatably connected to the sealing plate (8).

3. The feeding filter device according to claim 2, characterized in that, The other end of the adjusting rod (41) passes through the adjusting cylinder (3) and the mounting cylinder (2) and extends to the outside of the mounting cylinder (2). The end of the adjusting rod (41) located outside the mounting cylinder (2) is fixedly connected to the adjusting handwheel (43).

4. The feed filter device according to claim 3, characterized in that, Each set of reset mechanisms (5) includes a support plate (51) and a reset spring (52); the support plate (51) is fixedly connected to the inner wall of the adjusting cylinder (3), one end of the reset spring (52) is fixedly connected to the support plate (51), and the other end of the reset spring (52) is fixedly connected to the sealing plate (8).

5. The feed filter device according to claim 4, characterized in that, The inner wall of the mounting cylinder (2) is provided with a limiting groove (9) that is compatible with the sealing plate (8). The sealing plate (8) slides into the limiting groove (9) under the action of the reset mechanism (5) to seal the mounting cylinder (2).

6. An injection molding system, comprising the feed filter device according to any one of claims 1-5, characterized in that, Also includes The raw material box (10) is equipped with a discharge valve (11) at its outlet, and the outlet of the discharge valve (11) is connected to the top of the connecting pipe (1). An injection molding machine (12) is located below the raw material box (10), and the inlet of the injection molding machine (12) is connected to the bottom end of the connecting pipe (1).

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