Magnetic filtering hopper of injection molding machine

Abstract

The utility model relates to a magnetic filtering hopper of an injection molding machine, which comprises a support and a hopper arranged on the support, a flow control valve is arranged at the lower end of the hopper, a shell is arranged on the support and below the hopper, a feed port is arranged at the upper end of the shell, a discharge port is arranged at the lower end of the shell, and the feed port is connected with the bottom of the flow control valve. A plurality of sleeves are arranged in the shell in a staggered mode, magnetic bars are inserted in the sleeves, injection molding materials flow along a zigzag path under the action of gravity through the sleeves and the magnetic bars which are arranged in the shell in a staggered mode, the contact time and the contact area of magnetic impurities and a magnetic field are remarkably prolonged, and the adsorption efficiency is effectively improved; the injection molding materials can enter the shell in a dispersed mode, the adsorption efficiency is further improved, meanwhile, the storage space of the hopper can be prevented from being occupied, meanwhile, a magnetic rod inserting and pulling type structure supports quick disassembly and cleaning, and the problem that in a traditional scheme, the cleaning efficiency is low is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine technology, specifically to a magnetic filter hopper for injection molding machines. Background Technology

[0002] During the injection molding process, plastic raw materials often become contaminated with magnetic impurities such as metal shavings and rust due to storage and transportation. If these impurities are not effectively filtered, they can easily cause wear on the injection molding machine screw and barrel, as well as product defects, affecting production efficiency and product quality.

[0003] Traditional filtration methods involve installing a magnetic rack inside the hopper to adsorb magnetic substances. However, this method makes it difficult for the material to make full contact with the magnetic rack, resulting in less than ideal filtration. Cleaning the magnetic substances adsorbed on the magnetic rack is also quite troublesome and reduces the hopper's capacity. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a magnetic filter hopper for injection molding machines.

[0005] The purpose of this utility model can be achieved through the following technical solution: a magnetic filter hopper for an injection molding machine, including a support and a hopper mounted on the support. A flow control valve is provided at the lower end of the hopper. A housing is provided on the support below the hopper. The upper end of the housing is provided with an inlet and the lower end with an outlet. The inlet is connected to the bottom of the flow control valve. Multiple sleeves are arranged alternately inside the housing, and magnetic rods are inserted into the sleeves.

[0006] Preferably, a dispersion net is provided inside the shell above the sleeve.

[0007] Preferably, a vibrator is provided on the outside of the housing.

[0008] Preferably, the outer side of the housing is connected to the bracket via a vibration damping device.

[0009] Preferably, the vibration damping device includes a frame, a slide rod is movably mounted on the frame, a spring is sleeved on the slide rod, and a damping block is provided at the bottom of the spring to abut against the slide rod.

[0010] Preferably, an adjusting nut is threaded onto the slide rod.

[0011] Preferably, the feed inlet is connected to the flow control valve via a hose.

[0012] The beneficial effects of this utility model are as follows: the staggered arrangement of sleeves and magnetic rods inside the shell allows the injection plastic to flow along a tortuous path under the action of gravity, significantly extending the contact time and area between magnetic impurities and the magnetic field, effectively improving the adsorption efficiency. At the same time, the design of separating the hopper from the sleeves and magnetic rods allows the injection plastic to enter the shell in a dispersed manner, further improving the adsorption efficiency. It also avoids occupying the storage space of the hopper. In addition, the pluggable structure of the magnetic rods supports quick disassembly and cleaning, effectively solving the problem of low cleaning efficiency in traditional solutions. Attached Figure Description

[0013] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of a magnetic filter hopper for an injection molding machine according to the present invention.

[0015] Figure 2 This is a cross-sectional view of a magnetic filter hopper for an injection molding machine according to the present invention.

[0016] Figure 3 This is a schematic diagram of the vibration damping device structure of a magnetic filter hopper for an injection molding machine according to the present invention.

[0017] The labels in the diagram represent: 1. Support; 2. Hopper; 3. Flow control valve; 4. Housing; 401. Inlet; 402. Outlet; 403. Sleeve; 5. Magnetic rod; 6. Dispersion net; 7. Vibrator; 8. Vibration damping device; 801. Frame; 802. Slide rod; 803. Spring; 804. Damping block; 805. Adjusting nut; 9. Hose. Detailed Implementation

[0018] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0019] Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0020] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] See Figures 1 to 3 As shown, the structure of this utility model is as follows: a magnetic filter hopper for an injection molding machine, including a support 1 and a hopper 2 mounted on the support 1. A flow control valve 3 is provided at the lower end of the hopper 2. A housing 4 is located below the hopper 2 on the support 1. The housing 4 has an inlet 401 at its upper end and an outlet 402 at its lower end. The inlet 401 is connected to the bottom of the flow control valve 3. Multiple sleeves 403 are arranged alternately inside the housing 4, and magnetic rods 5 are inserted into the sleeves 403. Specifically, the raw material to be injected is stored in the hopper 2. The flow rate of the material entering the lower housing 4 is controlled by the flow control valve 3 at the lower end of the hopper 2. After the raw material enters the housing 4 through the inlet 401 via the flow control valve 3, it flows between the multiple sleeves 403 arranged alternately inside the housing 4. The magnetic rods inserted into the sleeves 403... 5. Magnetic adsorption is used to attract magnetic impurities such as metal shavings and rust from the raw materials. These impurities are intercepted and adsorbed onto the surface of the sleeve 403, while the filtered raw materials enter the injection molding machine from the discharge port 402 at the lower end of the housing 4. When it is necessary to clean the magnetic material on the sleeve 403, the connection between the discharge port 402 and the injection molding machine is cut off, and then the magnetic rod 5 is pulled out from the sleeve 403. The magnetic material on the sleeve 403 loses its adsorption force and automatically falls off, exiting from the discharge port 402. The staggered arrangement of the sleeves 403 increases the contact area and path between the raw materials and the magnetic rod 5, ensuring that magnetic impurities are fully adsorbed. This achieves efficient magnetic filtration of plastic raw materials, preventing magnetic impurities from entering the injection molding machine and causing wear on components such as the screw and barrel, thus ensuring the stable operation of the injection molding machine and the quality of the products.

[0022] like Figure 2 As shown, a dispersing net 6 is provided inside the housing 4 above the sleeve 403. Specifically, the dispersing net 6 is used to disperse the injection plastic, so that the injection plastic is more evenly distributed on the sleeve 403, and avoids concentrated falling and causing local blockage.

[0023] like Figure 1 As shown, a vibrator 7 is provided on the outside of the housing 4. Specifically, the vibrator 7 generates vibration when it is working, which causes the injection plastic in the housing 4 to remain in a flowing state and prevents the injection plastic from accumulating or blocking on the sleeve 403.

[0024] like Figure 1 , Figure 2As shown, the outer side of the housing 4 is connected to the support 1 through the vibration damping device 8. Specifically, the vibration damping device 8 can effectively reduce the vibration of the vibrator 7 during operation from the housing 4 to the support 1, thereby reducing the vibration impact on the entire injection molding machine system and the surrounding environment, ensuring the stability of equipment operation, and reducing noise and wear.

[0025] like Figure 3 As shown, the vibration damping device 8 includes a frame 801, a slide rod 802 movably mounted on the frame 801, a spring 803 sleeved on the slide rod 802, and a damping block 804 abutting against the slide rod 802 at the bottom of the spring 803. Specifically, the frame 801 is bolted to the bracket 1, and one end of the slide rod 802 is connected to the housing 4. When the housing 4 vibrates due to the operation of the vibrator 7 or the flow of materials, the slide rod 802 connected to the housing 4 slides axially within the frame 801, causing the spring 803 sleeved on the slide rod 802 to compress or stretch. The spring 803 absorbs vibration energy through elastic deformation and converts it into its own elastic potential energy. At the same time, the damping block 804 and the slide rod 802 come into contact and rub against each other to generate damping force, consuming the kinetic energy of the vibration and thus attenuating the amplitude of the vibration.

[0026] like Figure 3 As shown, an adjusting nut 805 is threaded onto the slide rod 802. Specifically, rotating the adjusting nut 805 allows the slide rod 802 to move axially, thereby changing the compression or preload of the spring 803. The stiffness and damping characteristics of the damper can be flexibly adjusted according to actual working conditions such as the vibration frequency of the housing 4 and changes in material weight.

[0027] like Figure 1 , Figure 2 As shown, the feed inlet 401 is connected to the flow control valve 3 via a hose 9. Specifically, when the housing 4 experiences slight displacement or vibration due to the operation of the vibrator 7 or the action of the damper, the hose 9 can offset the relative movement of the two through its own elastic deformation, avoiding stress concentration caused by rigid connection. On the one hand, it can adapt to the positional deviation and vibration displacement between the hopper 2 and the housing 4, preventing the connection from breaking due to rigid collision or pulling, and ensuring the sealing and continuity of material conveying. On the other hand, it reduces the transmission of vibration through the connection, so that the relative movement of the flow control valve 3 and the housing 4 does not interfere with each other, ensuring the stability of flow control and improving the reliability of the entire filtration device in a vibration environment, avoiding material leakage or connection failure.

[0028] In practical use, the raw material to be injected is stored in the hopper 2. The flow rate of the material entering the lower housing 4 is controlled by the flow control valve 3 at the lower end of the hopper 2. After the raw material enters the housing 4 through the inlet 401 via the flow control valve 3, it flows between multiple sleeves 403 arranged in an alternating manner inside the housing 4. The magnetic rods 5 inserted in the sleeves 403 use magnetism to adsorb magnetic impurities such as metal shavings and rust in the raw material, so that the impurities are intercepted and adsorbed on the surface of the sleeves 403. The filtered raw material enters the injection molding machine from the outlet 402 at the lower end of the housing 4. When it is necessary to clean the magnetic material on the sleeves 403, the connection between the outlet 402 and the injection molding machine is cut off, and then the magnetic rods 5 are pulled out from the sleeves 403. The magnetic material on the sleeves 403 loses its adsorption force and automatically falls off, and is discharged from the outlet 402.

[0029] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

Claims

1. An injection molding machine magnetic filter hopper characterized by: The utility model relates to a kind of material feeding device, including support (1), hopper (2) being arranged on support (1), the lower end of the hopper (2) is equipped with flow control valve (3), the lower end of the hopper (2) is equipped with casing (4) on support (1), the upper end of the casing (4) is equipped with inlet (401), the lower end is equipped with outlet (402), the inlet (401) is connected with the bottom of flow control valve (3), multiple sleeve pipes (403) are staggered in the casing (4), magnetic bar (5) is inserted in the sleeve pipe (403).

2. A magnetic filter hopper for an injection molding machine as defined in claim 1, wherein: The casing (4) is equipped with dispersion net (6) above the sleeve pipe (403).

3. A magnetic filter hopper for an injection molding machine as defined in claim 1, wherein: The outside of the casing (4) is equipped with vibrator (7).

4. A magnetic filter hopper for an injection molding machine as defined in claim 1, wherein: The casing (4) is connected with support (1) by damping device (8) outside.

5. A magnetic filter hopper for an injection molding machine as defined in claim 4, wherein: The damping device (8) includes frame (801), the sliding rod (802) is movably arranged on the frame (801), the spring (803) is sleeved on the sliding rod (802), the bottom of the spring (803) is equipped with damping block (804) abutting against the sliding rod (802).

6. A magnetic filter hopper for an injection molding machine as defined in claim 5, wherein: The sliding rod (802) is threadedly connected with adjusting nut (805).

7. A magnetic filter hopper for an injection molding machine as defined in claim 1, wherein: The inlet (401) is connected with flow control valve (3) by hose (9).

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