Cleaning mechanism for perforating needle of extruding machine
The cleaning mechanism, which combines negative pressure adsorption and mechanical scraping, solves the problem of residual aluminum adhering to the piercing needles of the extruder, improves production efficiency, reduces costs and safety risks, and extends equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG WEIQIAO LIGHTWEIGHT MATERIALS CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-24
AI Technical Summary
In the existing technology, the piercing needles of the extruder adhere to residual aluminum under high temperature and high pressure, resulting in low production efficiency, high cost, cumbersome operation and equipment damage. Traditional chemical etching methods are inefficient, costly and pose safety hazards.
A cleaning mechanism for extrusion press piercing needles is designed, which combines negative pressure adsorption with mechanical scraping. Through the integrated design of negative pressure pump, negative pressure suction pipe and collection box, residual aluminum on the surface of the piercing needle is cleaned, avoiding frequent disassembly and chemical etching.
It improves production efficiency, reduces equipment downtime, lowers the risk of corrosion of perforating needles, extends service life, reduces material waste and environmental pollution, and enhances the convenience and safety of cleaning.
Smart Images
Figure CN224157538U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of aluminum processing technology, and in particular relates to a cleaning mechanism for a piercing needle of an extrusion press. Background Technology
[0002] In the aluminum processing industry, extrusion presses are key equipment for producing seamless tubes, forming the tubes through the interaction of piercing needles and dies. However, in actual production, the piercing needles come into contact with the aluminum material under high temperature and pressure, and residual aluminum easily adheres to their surface. If this residual aluminum is not cleaned in time, it will not only affect the surface quality of subsequent products, but may also lead to a decrease in the fitting precision between the piercing needles and dies, and even damage to the equipment.
[0003] Currently, the commonly used cleaning method in the industry is as follows: after the processing or trial production of each product is completed, the piercing needle is removed from the needle holder and sent to a specialized etching process for chemical etching to remove residual aluminum. At the same time, to avoid production interruptions, multiple sets of spare piercing needles need to be prepared in advance for rotation. This traditional method has the following significant problems:
[0004] Inefficiency: Frequent disassembly and installation of perforating needles increases equipment downtime, seriously affecting production efficiency, especially in multi-specification, small-batch production.
[0005] High cost: The preparation and maintenance of spare perforation needles require a large investment, and the etching process consumes chemical agents and generates waste liquid, which increases the cost of environmental treatment.
[0006] The operation is cumbersome: manually disassembling and moving the piercing needles is not only labor-intensive, but also poses safety hazards, such as high-temperature burns or mechanical injuries.
[0007] Needle bar wear: Chemical etching may corrode the surface of the piercing needle, which will reduce its lifespan and dimensional accuracy with long-term use. Utility Model Content
[0008] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a cleaning mechanism for the piercing needle of an extruder.
[0009] To achieve the above objectives, this utility model provides the following technical solution: a cleaning mechanism for a perforated needle of an extruder, comprising a needle seat guide sleeve and a perforated needle. The needle seat guide sleeve has a hollow internal structure and an opening on one side. A fastening element is provided between the opening of the needle seat guide sleeve and the perforated needle. A negative pressure device is connected to the outside of the fastening element. The negative pressure device includes a negative pressure pump, a negative pressure suction tube, and a collection box. One end of the negative pressure suction tube is connected to the fastening element, the other end of the negative pressure suction tube is connected to the input end of the negative pressure pump, and the output end of the negative pressure pump is connected to the collection box.
[0010] Preferably, the collection box is disposed on the side wall of the needle seat guide seat, and the collection box is used to collect waste.
[0011] Preferably, the negative pressure pump is installed on the end face of the collection box, and the negative pressure pump is used to adsorb waste.
[0012] Preferably, the fastener includes a first mounting plate and a second mounting plate, the first mounting plate being connected to the perforating needle via a cleaning component, and the second mounting plate being connected to the needle seat guide sleeve.
[0013] Preferably, the first mounting plate and the second mounting plate are screwed together.
[0014] Preferably, the side wall of the first mounting plate has a plurality of suction holes.
[0015] Preferably, the cleaning component includes a cleaning disc, which is snapped onto the end face of the first mounting disc, and the perforating needle extends through the cleaning disc, the first mounting disc, and the second mounting disc into the needle seat guide sleeve.
[0016] Preferably, the end face of the cleaning disc has a protrusion for scraping off waste material.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] (1) This utility model cleans the residual aluminum on the surface of the piercing needle at the working position of the extruder by negative pressure adsorption, without the need for frequent disassembly of the needle rod, which greatly shortens the downtime required by the traditional etching process and improves production efficiency; the physical adsorption method for cleaning residual aluminum can reduce the corrosion of the needle rod surface compared with chemical etching, maintain its dimensional accuracy, and extend its service life; the residual aluminum adsorbed by negative pressure can be collected in a collection box, which is convenient for recycling and reuse, and reduces material waste.
[0019] (2) The integrated design of the collection box in this utility model ensures that the waste is recycled in a targeted manner, avoiding environmental pollution or equipment pollution caused by the scattering of waste in traditional cleaning, and at the same time facilitating the centralized treatment or reuse of waste.
[0020] (3) The screw-on connection method (such as threaded connection) between the first mounting plate and the second mounting plate in this utility model allows for quick disassembly and assembly, which is convenient for maintenance or replacement of cleaning parts; the split design is also compatible with perforating needles of different diameters, which improves versatility.
[0021] (4) In this utility model, the raised structure on the end face of the cleaning disc directly scrapes off the attached waste material during the extension and retraction of the perforating needle. Combined with the immediate adsorption of the negative pressure suction hole, a "scraping and suction dual-effect" mechanism is formed to thoroughly remove stubborn residues and reduce the risk of wear on the perforating needle.
[0022] (5) In this utility model, the suction holes are evenly distributed on the side wall of the first mounting plate to ensure that the negative pressure adsorption force covers the entire circumferential surface of the perforating needle and avoids cleaning dead corners; the power of the negative pressure pump is adjustable to meet the cleaning needs of waste materials with different viscosities or particle sizes. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a three-dimensional structural diagram of the connection between the cleaning disc and the fastener of this utility model;
[0025] Figure 3 This is a schematic diagram of the connection structure between the cleaning disc and the fastener of this utility model;
[0026] Figure 4 This is a schematic diagram of the cleaning disc of this utility model;
[0027] In the diagram: 1. Needle seat guide sleeve; 2. Perforating needle; 3. Fastener; 4. Negative pressure device; 5. Negative pressure pump; 6. Negative pressure suction tube; 7. Collection box; 8. First mounting plate; 9. Second mounting plate; 10. Suction hole; 11. Cleaning plate; Detailed Implementation
[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0030] Please see Figure 1-4To achieve the above objectives, this embodiment provides a cleaning mechanism for the piercing needle 2 of an extruder, including a needle seat guide sleeve 1 and a piercing needle 2. The needle seat guide sleeve 1 is installed at a fixed position in the extruder and is located at the entrance of the piercing needle 2, providing guidance and support for the piercing needle 2.
[0031] The needle holder guide sleeve 1 ensures that the piercing needle 2 maintains linear movement during operation, and its hollow internal structure facilitates the passage of the piercing needle 2 while providing space for the adsorption and collection of waste materials. An opening on one side of the needle holder guide sleeve 1 is designed for installing the snap fastener 3, ensuring a tight connection between the snap fastener 3 and the needle holder guide sleeve 1.
[0032] The piercing needle 2 penetrates the needle holder guide sleeve 1 and extends from the opening of the needle holder guide sleeve 1. During extrusion, the piercing needle 2 is used to penetrate the material and form a hole. Waste material may remain on the surface of the piercing needle 2, requiring cleaning by a cleaning mechanism.
[0033] The locking component 3 is installed at the opening of the needle holder guide sleeve 1 and connects to the piercing needle 2. The locking component 3 secures the piercing needle 2, ensuring that it will not loosen during operation. The locking component 3 is connected to the negative pressure device 4, which uses the negative pressure suction tube 6 to draw waste material into the collection box 7.
[0034] In this embodiment, the buckle 3 consists of a first mounting plate 8 and a second mounting plate 9. The first mounting plate 8 and the second mounting plate 9 are connected by a threaded connection, which facilitates disassembly and maintenance. The side wall of the first mounting plate 8 is provided with an annular array of suction holes 10 (hole diameter 1-2mm), which are connected to the negative pressure suction tube 6. The first mounting plate 8 is connected to the perforated needle 2 through a cleaning component, and the second mounting plate 9 is connected to the needle seat guide sleeve 1.
[0035] In this embodiment, the negative pressure device 4 includes a negative pressure pump 5, a negative pressure suction tube 6, and a collection box 7.
[0036] The negative pressure pump 5 is installed on the end face of the collection box 7. One end of the negative pressure suction pipe 6 is connected to the buckle 3, and the other end is connected to the input end of the negative pressure pump 5. The collection box 7 is installed on the side wall of the needle seat guide sleeve 1. The negative pressure pump 5 generates negative pressure through the negative pressure suction pipe 6, which adsorbs the waste material on the surface of the piercing needle 2 into the collection box 7. The collection box 7 is used to store waste material and prevent waste material from polluting the working environment.
[0037] In this embodiment, the cleaning component includes a cleaning disc 11, which is snapped onto the end face of the first mounting disc 8. The perforating needle 2 passes through the cleaning disc 11, the first mounting disc 8, and the second mounting disc 9, extending into the needle seat guide sleeve 1. The protrusion on the end face of the cleaning disc 11 is used to scrape off waste material from the surface of the perforating needle 2. When the perforating needle 2 moves, the cleaning disc 11 assists the negative pressure device 4 in cleaning waste material through mechanical scraping.
[0038] Working principle
[0039] Working stage of perforating needle 2: Under the action of the extruder, perforating needle 2 penetrates the material and forms a hole.
[0040] During the perforation process, waste material may be generated on the surface of the material, and the waste material adheres to the surface of the perforation needle 2.
[0041] Waste cleaning stage: The negative pressure pump 5 is started, and negative pressure is generated at the buckle 3 through the negative pressure suction pipe 6. The negative pressure adsorbs the waste on the surface of the perforating needle 2 into the collection box 7. At the same time, the protrusion on the end face of the cleaning disc 11 scrapes off the waste when the perforating needle 2 moves, further improving the cleaning efficiency.
[0042] Waste collection stage: Waste enters the collection box 7 through the negative pressure suction pipe 6. The collection box 7 stores the waste and is cleaned regularly to ensure that the waste does not overflow.
[0043] In other embodiments, a filter element, such as a filter screen, is provided between the negative pressure suction pipe 6 and the collection box 7. The filter screen can filter out large particles in the waste, prevent particles from entering the negative pressure pump 5, extend the service life of the negative pressure pump 5, and the filtered waste enters the collection box 7 for subsequent processing.
[0044] In other embodiments, an automatic cleaning device, such as an automatic scraper, is added to the bottom of the collection box 7. The automatic scraper can periodically clean the waste in the collection box 7, avoiding the trouble of manual cleaning. The cleaning function can be set to be timed or automatically started according to the amount of waste.
[0045] In other embodiments, sensors are installed at the negative pressure pump and the collection box. The sensors can monitor the working status of the negative pressure pump and the amount of waste in the collection box in real time. When the amount of waste reaches the set value or the negative pressure pump malfunctions, the system will automatically alarm or stop to ensure the safe operation of the equipment.
[0046] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A cleaning mechanism for a perforating needle in an extruder, comprising a needle seat guide sleeve and a perforating needle, characterized in that: The needle seat guide sleeve has a hollow structure inside and an opening on one side. A fastener is provided between the opening of the needle seat guide sleeve and the piercing needle. A negative pressure device is connected to the outside of the fastener. The negative pressure device includes a negative pressure pump, a negative pressure suction tube and a collection box. One end of the negative pressure suction tube is connected to the fastener, the other end of the negative pressure suction tube is connected to the input end of the negative pressure pump, and the output end of the negative pressure pump is connected to the collection box.
2. The cleaning mechanism for a perforated needle in an extruder according to claim 1, characterized in that: The collection box is located on the side wall of the needle seat guide seat and is used to collect waste materials.
3. The cleaning mechanism for the perforating needle of an extruder according to claim 2, characterized in that: The negative pressure pump is installed on the end face of the collection box and is used to adsorb waste materials.
4. The cleaning mechanism for a perforated needle in an extruder according to claim 1, characterized in that: The fastener includes a first mounting plate and a second mounting plate. The first mounting plate is connected to the perforating needle via a cleaning component, and the second mounting plate is connected to the needle seat guide sleeve.
5. The cleaning mechanism for a perforated needle in an extruder according to claim 4, characterized in that: The first mounting plate and the second mounting plate are screwed together.
6. The cleaning mechanism for a perforated needle in an extruder according to claim 5, characterized in that: The first mounting plate has several suction holes on its side wall.
7. The cleaning mechanism for a perforated needle in an extruder according to claim 6, characterized in that: The cleaning component includes a cleaning disc, which is snapped onto the end face of a first mounting disc. The perforating needle penetrates the cleaning disc, the first mounting disc, and the second mounting disc, extending into the needle seat guide sleeve.
8. The cleaning mechanism for a perforated needle in an extruder according to claim 7, characterized in that: The end face of the cleaning disc has a protrusion for scraping off waste material.