Magnetic suction feeding structure of master batch bin

Abstract

The invention discloses a master batch stock bin magnetic attraction feeding structure which comprises a small hopper located at a feed port of a master batch stock bin, a magnetic attraction device is arranged in the small hopper, and master batch entering the small hopper absorbs doped metal particles through the magnetic attraction device and then flows into the stock bin. And metal impurities mixed among master batches can be sucked out, so that the master batches entering the stock bin do not contain the metal impurities, and the stability of the current of the injection metering pump in the production operation process of the black filament injection device is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of spinning production equipment, and particularly relates to a magnetic feeding structure of a master batch bin. BACKGROUND

[0002] During the production operation of our poly spinning workshop phase III filament 1 line black silk injection device, the purchased master batch is transported into the small material bin through the suction pipe, and then is injected into the master batch bin through the small hopper, and is supplied to the black silk injection device through the master batch bin. In the process of supplying the black silk injection device, the injection metering pump current occasionally changes, which inevitably leads to the problems of on-site broken ends and more floating filaments in the subsequent production. After a long time of trial and observation, it is found that the main reason for this problem is that there is metal dust in the material in the master batch bin, therefore, the existing master batch bin needs to be improved to avoid the situation that the injection metering pump current fluctuates after the metal dust enters the bin. SUMMARY

[0003] In order to solve the technical problems existing in the prior art, the purpose of the present application is to provide a magnetic feeding structure of a master batch bin, which can suck out the metal impurities mixed in the master batch, so as to ensure that the master batch entering the bin does not contain metal impurities, and improve the stability of the injection metering pump current of the black silk injection device during the production operation.

[0004] In order to solve the above-mentioned technical problems, the purpose of the present application is achieved by adopting the following technical scheme: A magnetic feeding structure of a master batch bin, comprising a small hopper located at the feeding port of the master batch bin, wherein a magnetic adsorption device is arranged in the small hopper, and the master batch entering the small hopper is subjected to adsorption of the doped metal particles by the magnetic adsorption device before flowing into the bin.

[0005] Preferably, the magnetic adsorption device comprises a limiting frame clamped at both ends on the inner wall of the small hopper, and a plurality of magnetic adsorption pieces arranged on the limiting frame.

[0006] Preferably, two rows of the magnetic adsorption pieces are arranged on the limiting frame, and the upper and lower rows of the magnetic adsorption pieces are arranged in a horizontal staggered manner.

[0007] Preferably, the limiting frame comprises two sheet-shaped stainless steel plates, and a plurality of positioning holes are arranged on the stainless steel plates, and the magnetic adsorption pieces are installed in the positioning holes.

[0008] Preferably, the magnetic adsorption piece comprises a cylindrical metal sleeve and a magnet arranged in the metal sleeve, and the outer wall of the metal sleeve forms a magnetic force through the magnet.

[0009] Preferably, the metal sleeve is provided with a plurality of annular magnets, and a spacer is arranged between two adjacent magnets.

[0010] Preferably, the outer wall of the metal sleeve is smooth.

[0011] Compared with the prior art, the application has the beneficial effects that: By installing the magnetic adsorption device in the small hopper, the iron element metal powder or particles that fall from outside or are mixed can be adsorbed, so that the metal powder is filtered, the content of the metal powder existing between the master batches in the bin is reduced or even eliminated, the occasional influence of the metal powder on the current of the injection metering pump is reduced, and the occurrence of on-site broken ends and floating filaments in the subsequent production of the filament is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 The figure is a schematic view of the overall structure of the application, showing the structure of the magnetic adsorption device installed in the small hopper of the existing bin; Figure 2 The figure is a schematic view of the combination structure of the magnetic adsorption device in the application; Figure 3 The figure is a schematic view of the structure of a limiting frame in the application; Figure 4 The figure is an exploded view of the magnetic member in the application; In the figure: 1, bin; 2, magnetic adsorption device; 3, small hopper; 31, limiting frame; 311, stainless steel plate; 312, positioning hole; 32, magnetic member; 321, metal sleeve; 322, magnet; 323, end cover; 4, spacer; 41, connecting pipe; 42, side plate. DETAILED DESCRIPTION

[0013] In the following, the application will be further described in conjunction with the drawings and specific embodiments, and it should be noted that the following described embodiments or technical features can be combined in any manner to form new embodiments without conflict.

[0014] In the description of the application, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0015] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, without limiting the number of objects; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0016] like Figure 1 As shown, a magnetic feeding structure for a masterbatch silo includes a small hopper 3 located at the inlet of the masterbatch silo 1. The small hopper 3 is equipped with a magnetic adsorption device 2. The masterbatch entering the small hopper 3 is adsorbed by the magnetic adsorption device 2 and then flows into the silo 1.

[0017] A magnetic adsorption device 2 was installed inside the small hopper 3. When the entire bag of masterbatch is sucked into the small hopper 3 through the suction pipe, the masterbatch must pass through the magnetic adsorption device 2 before flowing downwards into the masterbatch hopper 1. If the masterbatch contains iron impurities, it can be adsorbed in time to prevent them from flowing into the masterbatch hopper 1. When the masterbatch passes through the magnetic adsorption device 2, any iron metal powder or particles that fall off or are mixed in can be adsorbed by the magnetic adsorption device 2, thereby filtering the metal powder and reducing or even eliminating the metal powder content present in the masterbatch entering the hopper 1. This reduces the occasional impact of metal powder on the injection metering pump current, thereby reducing the occurrence of on-site breakage and loose fibers during subsequent tow production. After installing the magnetic adsorption device 2, a period of monitoring showed that on-site loose fibers and breakage were reduced, and the current during the operation of the black fiber injection pump was stably controlled.

[0018] Further improvements include, for example Figure 2 As shown, the magnetic adsorption device 2 includes a limiting frame 31 with both ends clamped to the inner wall of the small hopper 3, and a plurality of magnetic adsorption components 32 disposed on the limiting frame 31.

[0019] The magnetic suction component 32 is installed on the limiting frame 31. When the magnetic adsorption device 2 is placed into the small hopper 3, the lower end of the limiting frame 31 is limited by the narrowed inner wall structure of the lower end of the small hopper 3, so that it is stuck in the small hopper 3. When the masterbatch is sucked in from the upper end, the masterbatch will fall down after passing through the gap between several magnetic suction components 32, so that the metal impurities distributed between the masterbatch can be effectively adsorbed on each magnetic suction component 32. The whole structure is simple and convenient, easy to disassemble and assemble, and does not require a fixed snap-fit ​​structure.

[0020] A further improvement is made in that the limiting frame 31 is provided with two rows of magnetic suction members 32, and the upper and lower rows of magnetic suction members 32 are arranged in a horizontally staggered manner.

[0021] However, when adding magnets 322 inside, it is difficult to achieve a complete suction effect by simply installing magnets 322. Therefore, in order to ensure that the metal powder mixed between the masterbatch can be effectively suctioned out, two rows of magnetic suction components 32 are installed in the small hopper 3. Each row consists of multiple magnetic suction components 32, and the two rows of magnetic suction components 32 are staggered. When the material passes through the magnetic adsorption device 2, part of it will be blocked by the upper row of magnetic suction components 32 and flow downward, while the other part can be blocked by the lower row of magnetic suction components 32 and then flow downward. This allows the metal powder between the masterbatch to be effectively adsorbed when it approaches the magnetic suction components 32, and better reduces the occurrence of unadsorbed metal powder flowing into the hopper 1.

[0022] Further improvements include, for example Figure 3 As shown, the limiting frame 31 includes two sheet-shaped stainless steel metal plates 311 and a plurality of positioning holes 312 provided on the stainless steel metal plates 311, and the magnetic suction member 32 is installed in the positioning holes 312.

[0023] The limiting frame 31 consists of two sheet-like stainless steel metal plates 311, with multiple positioning holes 312 installed on the stainless steel metal plates 311. When installing the magnetic suction component 32, simply insert the magnetic suction component 32 into the positioning holes 312 of the two stainless steel metal plates 311 to achieve horizontal positioning. After being fixed by the auxiliary positioning structure, the entire assembly can move. Moreover, since the limiting frame 31 is made of stainless steel metal plates 311, when installing the magnet 322, it can avoid the problem of the magnet 322 directly adhering to the limiting frame 31, which would cause difficulties in disassembly and assembly. Furthermore, it is not easy to rust during long-term use and has a longer service life.

[0024] Based on the above technical solution, further improvements are made as follows: Figure 4 As shown, the magnetic suction component 32 includes a cylindrical metal sleeve 321 and a magnet 322 disposed inside the metal sleeve 321. The outer wall of the metal sleeve 321 is magnetically attracted by the magnet 322.

[0025] In order to ensure the adsorption effect, the magnetic component 32 generally adopts a magnet 322 structure. However, if the diameter of the installed magnet 322 is small, the gap between the two needs to be reduced. If the gap is large, it is easy to cause the contact surface between the masterbatch and the magnet 322 to be too small, resulting in a large amount of metal powder not being able to be attracted out. In addition, the number of magnets 322 needs to be increased, increasing the assembly difficulty. If the size of the magnet 322 is increased, there is a problem that the magnetism is too strong, causing mutual attraction and making it difficult to install. The overall weight will also increase. Therefore, the magnetic suction component 32 needs to be improved. The improved magnetic suction component 32 is formed by a cylindrical metal sleeve 321. A magnet 322 is installed inside the cylindrical metal sleeve 321. The internal magnet 322 makes the tube wall of the metal sleeve 321 magnetic. When metal powder approaches the metal sleeve 321, it can be quickly attracted. The diameter of the metal sleeve 321 is generally between 8 and 12 cm. The distance between two cylindrical metal sleeves 321 is at least 5 cm. The cylindrical metal sleeve 321 can reduce the overall weight, ensure the flow rate of the material, and effectively increase the contact surface with the masterbatch. At the same time, the metal powder mixed in with the masterbatch can be effectively attracted. Even if it is slightly larger than the tube diameter, it will not affect the attraction effect.

[0026] A further improvement is that the metal sleeve 321 is provided with a plurality of annular magnets 322, and a spacer 4 is provided between two adjacent magnets 322; the outer wall of the metal sleeve 321 is smooth.

[0027] Because magnet 322 is relatively heavy, to reduce the overall weight, the magnet 322 inside the metal sleeve 321 adopts a ring-shaped plate structure. Multiple spaced-apart metal sleeves 321 are installed in each metal sleeve 321, and spacers 4 separate two magnets 322. This improvement effectively reduces the overall weight and creates a ring-shaped strong magnetic structure on the outside of the metal sleeve 321 near the magnet 322, while creating a weak magnetic structure on the outside of the metal sleeve 321 away from the magnet 322. This ensures that metal powder can be attracted to all areas on the outside of the metal sleeve 321, and through intermittent material conveying, the metal powder attracted in the weak magnetic area can be concentrated and attracted to the strong magnetic ring area, avoiding the problem of excessive powder accumulation in the weak magnetic area and subsequent removal. Furthermore, the outer wall of the metal sleeve 321 is smooth, allowing for rapid separation of metal powder during subsequent cleaning. The use of spacers 4 to separate the magnets 322 allows for flexible adjustment of the magnet 322's position by selecting spacers 4 of different lengths, thus meeting the magnetic attraction requirements.

[0028] Based on the above technical solution, the metal sleeve 321 is further improved by using a stainless steel tube with a wall thickness of no more than 1.5 mm, and one end of the metal sleeve 321 is sealed by an end cap 323.

[0029] When the wall thickness of the metal sleeve 321 exceeds 1.5mm, the magnetism weakens, resulting in poorer attraction. Furthermore, the overall weight is increased, making disassembly and assembly difficult, especially since the small hopper 3 is located at the top of the hopper 1, high above the ground, making transportation challenging. Therefore, the metal sleeve 321 uses a stainless steel tube with a wall thickness of no more than 1.5mm. While maintaining rigidity, a thinner wall is preferable, typically 0.5~1mm thick. This ensures both the overall rigidity and sealing of the metal sleeve 321 while reducing weight, and also ensures that the magnetic force can be transmitted to the outside of the metal sleeve 321. The stainless steel tube body is welded to the limiting frame 31, preventing lateral movement of the magnetic components after installation. One or both ends of the metal sleeve 321 are detachably sealed via end caps 323, allowing for more flexible disassembly and assembly of the magnet 322 and eliminating the problem of difficulty in removal after installation.

[0030] A further improvement is made in that the gap between the outer diameter of the magnet 322 and the inner diameter of the metal sleeve 321 is less than 1mm. If the gap between the two is too large, the magnetic force at the top will be insufficient, thus affecting the powder extraction effect. If the two diameters are the same, they are prone to jamming during installation and are inconvenient to disassemble later. Therefore, a gap fit is adopted between the two, which can effectively reduce the gap, ensure the extension of the magnet, and facilitate the installation and removal of the magnet 322.

[0031] A further improvement is made in that the partition 4 includes an annular connecting pipe 41 and an annular side plate 42 disposed at both ends of the connecting pipe 41, and the partition 4 is integrally formed by injection molding.

[0032] The partition 4 is integrally molded using injection molding. It is made of plastic such as PVC or PP, which can effectively reduce the overall weight of the device. At the same time, it can maintain magnetism through the spaced magnets 322. In particular, when the partition 4 is integrally molded from the annular connecting pipe 41 and the two annular side plates 42, the weight of the partition 4 itself can be further reduced.

[0033] In this configuration, the magnets 322 in the upper and lower rows of magnetic components are arranged in an alternating manner. The distance between two adjacent magnets 322 is generally 6-8 cm, and the width of the magnets 322 is generally 1-2 cm. By arranging the magnets 322 in the same metal sleeve 321 at intervals and coordinating with the corresponding width of the magnets 322, the problems of insufficient adsorption effect and uneven distribution can be effectively solved. This ensures that magnetic force is formed around the masterbatch in each area of ​​the magnetic adsorption device 2, guaranteeing that the metal elements of the masterbatch can be adsorbed.

[0034] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A magnetic feeding structure for a masterbatch silo, comprising a small hopper (3) located at the feed inlet of the masterbatch silo (1), wherein a magnetic adsorption device (2) is provided in the small hopper (3), and the masterbatch entering the small hopper (3) is adsorbed by the magnetic adsorption device (2) and then flows into the silo (1).

2. The magnetic feeding structure for a masterbatch silo according to claim 1, characterized in that: The magnetic adsorption device (2) includes a limiting frame (31) with both ends clamped to the inner wall of the small hopper (3) and a plurality of magnetic adsorption components (32) provided on the limiting frame (31).

3. The magnetic feeding structure for a masterbatch silo according to claim 2, characterized in that: The limiting frame (31) is provided with two rows of magnetic suction components (32), and the upper and lower rows of magnetic suction components (32) are arranged in a horizontally staggered manner.

4. The magnetic feeding structure for a masterbatch silo according to claim 2, characterized in that: The limiting frame (31) includes two sheet-shaped stainless steel metal plates (311) and a plurality of positioning holes (312) provided on the stainless steel metal plates (311). The magnetic suction element (32) is installed in the positioning holes (312).

5. The magnetic feeding structure for a masterbatch silo according to claim 2, characterized in that: The magnetic attractor (32) includes a cylindrical metal sleeve (321) and a magnet (322) disposed inside the metal sleeve (321). The outer wall of the metal sleeve (321) is magnetically charged through the magnet (322).

6. The magnetic feeding structure for a masterbatch silo according to claim 5, characterized in that: The metal sleeve (321) is provided with a plurality of annular magnets (322), and a spacer (4) is provided between two adjacent magnets (322).

7. The magnetic feeding structure for a masterbatch silo according to claim 6, characterized in that: The outer wall of the metal sleeve (321) is smooth.

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