A device for pretreating waste silk

By combining a permanent magnet with an arc-shaped scraper, metal debris in the silk is adsorbed and scraped off, solving the problems of incomplete metal debris removal and filter clogging in existing devices, and achieving efficient silk pretreatment and resource utilization.

CN224525465UActive Publication Date: 2026-07-21HENAN MINXING COCOON SILK
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN MINXING COCOON SILK
Filing Date
2025-08-06
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Existing waste silk pretreatment devices struggle to completely remove metal debris during cleaning, and this debris easily clogs the filter screen, leading to incomplete cleaning and difficult equipment maintenance.

Method used

The device uses a permanent magnet in conjunction with an arc-shaped scraper to adsorb and scrape off ferromagnetic metal debris from the silk. The rotating disc and filter screen work together to automatically separate and collect the metal debris, preventing clogging.

Benefits of technology

It achieves complete removal of metal debris from silk, improves resource utilization, avoids filter clogging, and reduces equipment maintenance difficulty.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224525465U_ABST
    Figure CN224525465U_ABST
Patent Text Reader

Abstract

The utility model discloses a kind of waste silk pretreatment devices, it is related to waste silk processing technical field, including upper box, the top of the upper box is provided with first electric push rod, the bottom of the first electric push rod is inserted into upper box interior, the top of the first electric push rod is equipped with driving device, telescopic end of the first electric push rod is equipped with shell, the bottom of the shell is rotatably connected with two permanent magnets, the inside of the upper box is equipped with vertical plate, the both sides of the vertical plate are equipped with arc-shaped scraper, the bottom end of the vertical plate, near permanent magnet position place is equipped with first filter plate. The utility model is provided with a series of structures, realizes decontamination zero contact, avoids the risk of worker scratch, can remove and separate the metal scrap mixed in waste silk, and automatically collect metal scrap, pretreatment is more thorough, resource utilization is high, convenient to disassemble and clean filter screen, avoid the jam in long-term use process.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of waste silk processing technology, specifically a waste silk pretreatment device. Background Technology

[0002] Waste silk (including waste silk products, silk reeling waste, waste cocoons, etc.) must undergo pretreatment in order to achieve efficient recycling and resource utilization. The core purpose of pretreatment is to solve the problems of pollution, structural complexity and mixed components in waste silk.

[0003] Silkworm silk may contain impurities such as metal fragments (sewing needles, iron filings), which have recycling value. However, in existing waste silk pretreatment devices, metal fragments are mostly discharged directly with the wastewater during washing, or are not thoroughly cleaned while still attached to the silk. Moreover, because the wastewater from washing silkworm silk may contain impurities such as fibers, these impurities easily clog the filter screens. Most existing waste silkworm silk wastewater discharge structures rely on valves for opening and closing, which are prone to clogging and difficult to clean. Utility Model Content

[0004] The purpose of this invention is to provide a pretreatment device for waste silk, which can adsorb ferromagnetic metals and avoid frequent clogging.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a waste silk pretreatment device, comprising an upper box, a first electric push rod at the top of the upper box, the bottom of the first electric push rod extending into the upper box, a drive device installed at the top of the first electric push rod, a housing installed at the telescopic end of the first electric push rod, two permanent magnets rotatably connected to the bottom of the housing, a vertical plate installed inside the upper box, arc-shaped scrapers on both sides of the vertical plate, a first filter plate installed at the bottom of the vertical plate near the permanent magnets, a second filter plate installed inside the first filter plate, a cleaning tank at the bottom of the upper box, several holes at the bottom of the cleaning tank, a column at the middle of the bottom of the cleaning tank, a turntable installed on the outer surface of the column, and a wastewater discharge port installed at the bottom of the cleaning tank via a flange ring.

[0006] Preferably, the rear end of the cleaning tank is provided with a water inlet, both sides of the cleaning tank are provided with support legs, and the front end of the cleaning tank is hinged with a hinged door. The water inlet can inject cleaning water into the cleaning tank. A sealing structure is provided at the connection between the hinged door and the cleaning tank. When the hinged door is open, waste silk can be put into the cleaning tank. When closed, the waste silk can be washed.

[0007] Preferably, a second electric push rod is installed at the rear end of the upright plate, with one end of the second electric push rod extending out of the cleaning tank. The holes of the first and second filter plates are identical. The front ends of both sides of the second filter plate are connected by a spring inside the first filter plate. The second electric push rod can drive the upright plate to make a horizontal linear movement inside the upper box, so that the arc-shaped scrapers at both sides of the upright plate are pressed against the permanent magnet. When the arc-shaped scrapers remove the ferromagnetic waste adsorbed on the outer surface of the permanent magnet, the waste will fall to the top of the first filter plate. When the first filter plate is in its initial position, the holes of the first filter plate are sealed by the second filter plate. When the upright plate moves to the inner wall of the upper box, one end of the second filter plate first contacts the upper box, pushing the second filter plate so that the holes of the second filter plate coincide with the through holes of the first filter plate, causing the metal debris at the top of the second filter plate to fall off.

[0008] Preferably, an inclined plate is installed on one side of the upper housing, and one end of the inclined plate extends into the interior of the upper housing. When metal debris falls from the top of the second filter plate, the debris will fall onto the top of the inclined plate and be discharged from the top of the inclined plate due to gravity.

[0009] Preferably, an annular groove is provided at the bottom end of the cleaning tank near the hole, and a toothed column is slidably connected at the bottom end of the cleaning tank near the annular groove. A third electric push rod is installed at one end of the toothed column. A plurality of teeth are arranged on the circumferential surface of the turntable, and the teeth match the toothed column. A rubber ring matching the annular groove is provided at the top of the turntable, and a hole matching the column is provided at the middle position of the turntable. The turntable can be fitted onto the outer surface of the column. The sealing is improved by the rubber ring and the annular groove. When the third electric push rod moves linearly, it will cause the turntable to rotate.

[0010] Preferably, the top of the turntable is provided with several filter screens that match the holes. When the turntable is in the initial position, the top of the turntable seals the through hole at the bottom of the cleaning tank, so that the waste silk can be cleaned inside the cleaning tank. After cleaning, the turntable rotates to make the filter screens coincide with the through hole and discharge the wastewater.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. When this application is used, the permanent magnet works in conjunction with two arc-shaped scrapers on both sides of the vertical plate. The two permanent magnets are immersed in the liquid and rotate to agitate the material and cleaning liquid, directly adsorbing the ferromagnetic metal debris mixed in the liquid. After the permanent magnets have finished adsorbing, they are lifted up, and the arc-shaped scrapers automatically fit and rotate to scrape the impurities to the first filter plate through the horizontal movement of the vertical plate, achieving zero-contact decontamination and avoiding the risk of workers being scratched. It can remove and separate metal debris mixed in waste silk, and automatically collect the metal debris, making the pretreatment more thorough and the resource utilization rate high.

[0013] 2. This application features a replaceable turntable. The turntable works in conjunction with the filter screen and the holes at the bottom of the cleaning tank, making it easy to disassemble and clean the filter screen and preventing clogging during long-term use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a cross-sectional schematic diagram of the upper box structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the vertical plate structure of this utility model;

[0017] Figure 4 This is a partial cross-sectional structural diagram of the combined state of the second and first filters.

[0018] Figure 5 This is a schematic diagram of the cleaning tank structure of this utility model.

[0019] In the diagram: 1. Upper housing; 2. Cleaning tank; 3. Support legs; 4. Hinged door; 5. Wastewater discharge outlet; 6. First electric push rod; 7. Motor; 8. Housing; 9. Vertical plate; 10. Second electric push rod; 11. Inclined plate; 12. Permanent magnet; 13. Arc-shaped scraper; 14. First filter plate; 15. Second filter plate; 16. Spring; 17. Hole; 18. Third electric push rod; 19. Toothed column; 20. Column; 21. Filter screen; 22. Turntable; 23. Annular groove. Detailed Implementation

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

[0021] like Figures 1 to 5As shown, a waste silk pretreatment device includes an upper housing 1. A first electric push rod 6 is installed at the top of the upper housing 1, with its bottom extending into the upper housing 1. A drive device is installed at the top of the first electric push rod 6, comprising a motor 7 and a reducer. The drive device drives the first electric push rod 6 to rotate. A housing 8 is installed at the telescopic end of the first electric push rod 6, allowing the first electric push rod 6 to drive the housing 8 to perform vertical linear movement. Two permanent magnets 12 are rotatably connected to the bottom of the housing 8, and each of the two permanent magnets 12 has a drive mechanism (a conventional motor located inside the housing 8) at its top. During waste silk pretreatment, the first electric push rod 6 drives the housing 8 to descend, immersing the two permanent magnets 12 in a cleaning liquid. Then, the drive device drives the first electric push rod 6 to reciprocate, causing the two permanent magnets 12 to agitate the cleaning liquid and simultaneously attract metal debris attached to the waste silk to the outer surface of the permanent magnets 12. An upright plate 9 is installed inside the upper housing 1, with arc-shaped scrapers 13 on both sides of the upright plate 9. When the two permanent magnets 12 rise into the upper housing 1, the upright plate 9 moves towards the two permanent magnets 12, causing the two arc-shaped scrapers 13 to press against the two permanent magnets 12 respectively. As the two permanent magnets 12 rotate, the arc-shaped scrapers 13 scrape off the metal debris attracted to the outer surface of the permanent magnets 12. A first filter plate 14 is installed at the bottom of the upright plate 9, near the permanent magnets 12. When cleaning the outer surface of the permanent magnets 12, the first filter plate 14 is positioned between the two permanent magnets 12. At the bottom, the metal debris scraped off by the arc-shaped scraper 13 falls onto the top of the first filter plate 14. A second filter plate 15 is installed inside the first filter plate 14. The rear of the second filter plate 15 extends beyond the first filter plate 14 and contacts the upper housing 1. When the second filter plate 15 is in its initial position, it seals the through-hole of the first filter plate 14. After cleaning, the upright plate 9 moves to the inner wall of the upper housing 1, pressing against and pushing the second filter plate 15 to move. The through-holes of the second filter plate 15 and the first filter plate 14 overlap, causing the metal debris to fall. A cleaning tank 2 is provided at the bottom of the upper housing 1. The cleaning tank 2 can store waste silk and cleaning liquid for pre-treatment of the waste silk. Several holes 17 are provided at the bottom of the cleaning tank 2. After the old silk is washed, wastewater is discharged through hole 17. A column 20 is installed at the middle of the bottom of the cleaning tank 2. The top of the column 20 is rotatably connected to the cleaning tank 2. The bottom of the column 20 is provided with a threaded section. A turntable 22 is installed on the outer surface of the column 20. The turntable 22 is fitted onto the outer surface of the column 20 and is tightened by installing nuts on the threaded section, so that the turntable 22 can be fixed on the outer surface of the column 20. When the turntable 22 is in the initial position, it seals the hole 17 at the bottom of the cleaning tank 2. When wastewater needs to be discharged, the turntable 22 rotates, so that the filter screen 21 discharges the wastewater. The bottom of the cleaning tank 2 is provided with a wastewater outlet 5 through a flange ring. The wastewater outlet 5 can be removed, so that the bottom of the cleaning tank 2 can be opened to replace the turntable 22.

[0022] Specifically, a water inlet is provided at the rear end of the cleaning tank 2, and support legs 3 are provided on both sides of the cleaning tank 2. A hinged door 4 is hinged to the front end of the cleaning tank 2. The water inlet can inject cleaning water into the cleaning tank 2. A sealing structure is provided at the connection between the hinged door 4 and the cleaning tank 2. When the hinged door 4 is open, waste silk can be put into the cleaning tank 2. When closed, the waste silk can be washed.

[0023] Furthermore, a second electric push rod 10 is installed at the rear end of the vertical plate 9. The fixed end of the second electric push rod 10 is located on the outside of the cleaning tank 2. The holes 17 of the first filter plate 14 and the second filter plate 15 have the same shape. Springs 16 are connected to the front ends of both sides of the second filter plate 15 and the interior of the first filter plate 14. The second electric push rod 10 can drive the vertical plate 9 to make a horizontal linear movement inside the upper box 1, so that the arc-shaped scrapers 13 on both sides of the vertical plate 9 are pressed against the permanent magnet 12. After the scraper 13 picks up the ferromagnetic waste adsorbed on the outer surface of the permanent magnet 12, the waste will fall to the top of the first filter plate 14. When the first filter plate 14 is in the initial position, the holes 17 of the first filter plate 14 are sealed by the second filter plate 15. When the vertical plate 9 moves to the inner wall of the upper box 1, one end of the second filter plate 15 first contacts the upper box 1, pushing the second filter plate 15 so that the holes 17 of the second filter plate 15 coincide with the holes 17 of the first filter plate 14, causing the metal debris at the top of the second filter plate 15 to fall off.

[0024] Furthermore, an inclined plate 11 is installed on one side of the upper housing 1, with one end of the inclined plate 11 extending into the interior of the upper housing 1. When metal debris falls from the top of the second filter plate 15, the debris will fall onto the top of the inclined plate 11 and be discharged from the top of the inclined plate 11 due to gravity.

[0025] Furthermore, an annular groove 23 is provided at the bottom of the cleaning tank 2 near the hole 17, and a toothed column 19 is slidably connected at the bottom of the cleaning tank 2 near the annular groove 23. A third electric push rod 18 is installed at one end of the toothed column 19. Several teeth are arranged on the circumferential surface of the turntable 22, and the teeth match the toothed column 19. A rubber ring matching the annular groove 23 is provided at the top of the turntable 22, and a hole 17 matching the column 20 is provided at the middle position of the turntable 22. The turntable 22 can be fitted onto the outer surface of the column 20. The sealing is improved by the rubber ring and the annular groove 23. When the third electric push rod 18 moves linearly, it will cause the turntable 22 to rotate.

[0026] Furthermore, the top of the turntable 22 is provided with several filter screens 21 that match the holes 17. When the turntable 22 is in the initial position, the top of the turntable 22 seals the holes 17 at the bottom of the cleaning tank, allowing the waste silk to be cleaned inside the cleaning tank 2. After cleaning, the turntable 22 rotates to make the filter screens 21 overlap with the holes 17, and the wastewater is discharged.

[0027] The usage method of this embodiment is as follows: When using the waste silk pretreatment device, first open the hinged door 4, put the waste silk into the cleaning tank 2, close the hinged door 4, inject cleaning liquid through the water inlet, the liquid level should submerge the silk, then start the first electric push rod 6, drive the housing 8 to descend into the cleaning tank 2, the two permanent magnets 12 are immersed in the liquid, the motor 7 drives the first electric push rod 6 to rotate back and forth, the permanent magnets 12 agitate the liquid, adsorb the ferromagnetic metal debris in the silk, after cleaning, the first electric push rod 6 raises the housing 8, the permanent magnets 12 rise to the upper box 1, start the second electric push rod 10, push the vertical plate 9 to move laterally, the arc-shaped scraper 13 sticks to the permanent magnets 12, rotates and scrapes off the adsorbed metal debris, the debris falls into the first filter plate 14 (initially the through hole is closed by the second filter plate 15), then the second electric push rod 10 pulls Move the vertical plate 9 so that the first filter plate 14 contacts the inner wall of the upper box 1. The second filter plate 15 moves under pressure and aligns with the through hole of the first filter plate 14. Metal debris falls through the through hole to the inclined plate 11 and slides out of the equipment for collection. During the pre-treatment cleaning, the turntable 22 is in the initial position, sealing the bottom hole 17 of the cleaning tank 2. The permanent magnet 12 stirs in the tank to complete the silk removal and cleaning. After cleaning, start the third electric push rod 18 to push the tooth column 19 to move the toothed mouth of the turntable 22. The turntable 22 rotates so that the filter screen 21 aligns with the hole 17. After the wastewater is filtered by the filter screen 21, it is discharged from the wastewater outlet 5. The wastewater outlet 5 can be disassembled through the flange ring to clean the residue of the filter screen 21. After cleaning, turn off all electric push rods and motors, open the hinge door 4 to take out the pre-treated silk, rotate the turntable 22 to seal the hole 17, and reset the filter plate system.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A waste silk pretreatment device, comprising an upper housing (1), characterized in that: The top of the upper housing (1) is provided with a first electric push rod (6), the bottom of the first electric push rod (6) extends into the interior of the upper housing (1), a drive device is installed at the top of the first electric push rod (6), a housing (8) is installed at the telescopic end of the first electric push rod (6), two permanent magnets (12) are rotatably connected to the bottom of the housing (8), a vertical plate (9) is installed inside the upper housing (1), and arc-shaped scrapers (13) are provided on both sides of the vertical plate (9), the bottom end of the vertical plate (9), A first filter plate (14) is installed near the permanent magnet (12), and a second filter plate (15) is installed inside the first filter plate (14). A cleaning tank (2) is provided at the bottom of the upper box (1). Several holes (17) are provided at the bottom of the cleaning tank (2). A column (20) is provided at the middle position of the bottom of the cleaning tank (2). A turntable (22) is installed on the outer surface of the column (20). A wastewater discharge port (5) is installed at the bottom of the cleaning tank (2) through a flange ring.

2. The waste silk pretreatment device according to claim 1, characterized in that: The cleaning tank (2) has a water inlet at its rear end, and support legs (3) are provided on both sides of the cleaning tank (2). A hinged door (4) is hinged to the front end of the cleaning tank (2).

3. The waste silk pretreatment device according to claim 1, characterized in that: The rear end of the upright plate (9) is equipped with a second electric push rod (10). The fixed end of the second electric push rod (10) is located on the outside of the tank body (2). The holes (17) of the first filter plate (14) and the second filter plate (15) are the same. The front ends of both sides of the second filter plate (15) are connected to the inside of the first filter plate (14) by springs (16).

4. The waste silk pretreatment device according to claim 1, characterized in that: An inclined plate (11) is installed on one side of the upper box (1), and one end of the inclined plate (11) extends into the interior of the upper box (1).

5. The waste silk pretreatment device according to claim 1, characterized in that: An annular groove (23) is provided at the bottom end of the cleaning tank (2) near the hole (17). A toothed column (19) is slidably connected at the bottom end of the cleaning tank (2) near the annular groove (23). A third electric push rod (18) is installed at one end of the toothed column (19). Several toothed openings are arranged on the circumferential surface of the turntable (22). The toothed openings match the toothed column (19).

6. The waste silk pretreatment device according to claim 1, characterized in that: The top of the turntable (22) is provided with several filters (21) that match the holes (17).