In-shaft flow guiding device and method for copper extruding machine

Abstract

The invention discloses an in-shaft flow guide device and method for a copper extruder, the in-shaft flow guide device comprises a plurality of flow guide groove blocks which are sleeved in a flow guide through hole and are connected with one another, the flow guide groove blocks are provided with wire blank channels at intervals along the circumferential direction, a fastening through hole is formed in the middle of each flow guide groove block, and a second fastening piece is arranged in each fastening through hole; third fasteners are connected to the two ends of the second fasteners, a groove is formed in the side, away from the mold shaft, of the mold bearing pressure pad, a supplementary pad is arranged in the groove, a first step, a second step and a sliding groove are sequentially formed in the supplementary pad, the inner wall of the first step is arranged on the periphery of the flow guide groove block in a sleeving mode, and a flange is arranged on the inner wall of the second step in a sleeving mode and connected with the flow guide groove block through the first fasteners. A baffle is slidably connected into the sliding groove. According to the invention, the multiple sections of diversion trench blocks are positioned by adopting the first fasteners, and are secondarily fixed by using the second fasteners and the third fasteners, so that the problem that the splicing parts between the multiple sections of diversion trench blocks and the flange are easy to clamp or scratch a wire blank is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of copper extruders, and in particular relates to an in-shaft flow guide device and method for a copper extruder. Background Art

[0002] The surface of the wire billet extruded by the reverse copper extruder is required to be smooth and flat, with uniform size, no obvious defects such as scratches, wire flow, pressure pits, spots, peeling, cracking, etc. The number of outflow roots is usually single-flow, double-flow, three-flow or four-flow outflow. In actual production, the in-shaft flow guide device should be replaced frequently according to the billet specifications and requirements, as well as different needs. The in-shaft flow guide device is the key auxiliary equipment in the modern copper extruder production line. It is the discharge mechanism of the wire billet extruded by the reverse copper extruder. It plays an indispensable role. In daily use, it is mainly required that the extruded wire billet has no scratches and is easy to replace.

[0003] At present, the guide grooves in the in-shaft guide device are all made of graphite, and a splicing method of directly splicing multiple sections is adopted. The guide grooves are installed in the protective tube, and the baffle at the end of the protective tube is connected to the end of the die bearing pressure pad with fasteners. However, in the prior art, there are still the following problems. First, because the guide grooves are directly spliced ​​by multiple sections, there is a lack of positioning between the multiple sections, and there is a gap at the splicing, which is very easy to get stuck or scratch the wire blank. Secondly, because the flange of the protective tube is connected with fasteners, the fasteners need to be removed by tools before replacement can be carried out, which is inefficient. Moreover, there is no reliable connection between the guide groove and the protective tube. When replacing, the guide groove needs to be pushed out from the front end of the die shaft, which poses a great safety hazard. In summary, a stable, safe and efficient in-shaft guide device and method are urgently needed. Summary of the invention

[0004] In order to solve part or all of the technical problems existing in the above-mentioned prior art, the present invention provides an in-shaft flow guide device and method for a copper extruder.

[0005] On the one hand, the present invention provides an in-shaft flow guide device for a copper extruder, wherein the in-shaft flow guide device is arranged in a die shaft and a die bearing pressure pad that are connected to each other, and a communicating flow guide hole is opened between the die shaft and the die bearing pressure pad, and is characterized in that the in-shaft flow guide device includes a plurality of flow guide slot blocks that are sleeved in the flow guide hole and connected to each other, the flow guide slot blocks are provided with wire blank channels at intervals along the circumferential direction, the plurality of flow guide slot blocks are connected by a first fastener, a fastening through hole is opened in the middle of the flow guide slot block, a second fastener is provided in the fastening through hole, and the second fastener A third fastener is connected to both ends of the component, a groove is provided on the side of the die bearing pressure pad away from the die shaft, a filler pad is arranged in the groove, a quick-change through hole matching the guide flow hole is provided on the filler pad, a first step, a second step and a slide groove are sequentially provided in the filler pad, the inner wall of the first step is sleeved on the outer periphery of the guide groove block, the inner wall of the second step is sleeved with a flange, a square hole matching the wire blank channel is provided on the flange, the flange is connected to the guide groove block through a first fastener, a baffle is slidably connected in the slide groove, and the baffle is connected to the die bearing pressure pad through a fourth fastener.

[0006] Furthermore, in the above-mentioned in-shaft flow guide device for a copper extruder, a portion of one side of the flange abuts against the first step end face, another portion abuts against the end face of the flow guide groove block, and the other side of the flange abuts against the end face of the baffle.

[0007] Furthermore, in the above-mentioned in-shaft flow guide device for a copper extruder, one end of the second fastener passes through the flow guide trough block and is fixed by the third fastener, and the other end passes through the flow guide trough block and the flange in sequence and is fixed by the third fastener.

[0008] Furthermore, in the above-mentioned in-shaft flow guide device for a copper extruder, the flow guide groove block is provided with a countersunk hole close to the die shaft and away from the die bearing pressure pad, and the third fastener is arranged in the countersunk hole.

[0009] As a specific implementation, in the above-mentioned in-shaft flow guide device for a copper extruder, the first fastener is a positioning pin.

[0010] As a specific implementation, in the above-mentioned in-shaft flow guide device for a copper extruder, the second fastener is a fastening screw, and threads are arranged at both ends of the fastening screw.

[0011] As a specific implementation, in the above-mentioned in-shaft flow guide device for a copper extruder, the third fastener is a fastening nut.

[0012] As a specific implementation, in the above-mentioned in-shaft flow guide device for a copper extruder, the fourth fastener is a fastening screw.

[0013] On the other hand, the present invention provides a method for guiding flow in a shaft of a copper extruder, comprising:

[0014] Step 1: before the reverse copper extruder wire is ready for extrusion, the die shaft and the die bearing pressure pad are moved out of the extruder for assembly;

[0015] Step 2: Connect the plurality of guide trough blocks in sequence with each other through the first fasteners, and install the flange on the side of the guide trough block away from the mold shaft through the first fasteners, then pass the second fasteners through the fastening through holes and the flanges, and fix the second fasteners at both ends with the third fasteners;

[0016] Step 3: inserting a plurality of the guide groove blocks into the guide flow hole, so that one end surface of the flange abuts against the first step end surface, and the other end surface is located in the same plane as the second step end surface;

[0017] Step 4: Slide the baffle into the slide groove so that the baffle limits the axial position of the flange. When the baffle moves to the specified position, it is fixed to the die bearing pressure pad by the fourth fastener. At this time, one side of the baffle abuts against the flange end face and the second step end face, and the other side is located in the same plane as the end face of the supplementary pad.

[0018] Step 5: placing the assembled in-shaft flow guide device in the extruder to perform reverse copper extruder wire extrusion.

[0019] Furthermore, in the above-mentioned in-shaft guide method for a copper extruder, when the guide trough block needs to be replaced, the fourth fastener is removed, the baffle is slid to an axial position where it does not restrict the flange, and then the flange and the guide trough block are pulled out for replacement.

[0020] The shaft inner flow guiding device and method for copper extruder of the present invention have the following advantages and positive effects:

[0021] (1) In the present invention, the first fastener is used to reliably position the multi-section guide trough blocks, and the second fastener and the third fastener are used to form the inner guide device, the die shaft, and the die bearing pressure pad as a whole for secondary fixation, so that the guide device has stability, solves the problem that the wire blank is easily stuck or scratched at the joints between the multi-section guide trough blocks and between the guide trough blocks and the flange, and improves the stability of the copper extruder during the extrusion operation;

[0022] (2) In the present invention, by installing the flange on the second step inner wall of the patch gasket, when the guide groove block is replaced, the flange does not need to be removed, and the shaft guide device can be quickly pulled out of the quick-change through hole as a whole, which has high replacement efficiency and good safety, simple structure, convenient disassembly and assembly, and low operation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the present invention and constitute a part of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0024] Figure 1 It is a schematic structural diagram of the in-shaft flow guide device for a copper extruder of the present invention;

[0025] Figure 2 yes Figure 1 A partial enlarged view of part I in the middle;

[0026] Figure 3 It is a right side view of the in-shaft flow guide device for a copper extruder of the present invention;

[0027] Figure 4 The present invention is a schematic structural diagram of a patch pad in a shaft inner flow guide device for a copper extruder.

[0028] Description of reference numerals:

[0029] 1-guide groove block, 11-wire blank channel, 12-countersunk hole, 2-first fastener, 3-second fastener, 4-third fastener, 5-pad, 51-first step, 52-second step, 53-slide, 54-quick change through hole, 6-flange, 61-square hole, 7-baffle, 8-fourth fastener, 100-mold shaft, 200-mold bearing pressure pad. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0031] like Figures 1 to 4 As shown, the present invention provides an in-shaft flow guide device and method for a copper extruder.

[0032] On the one hand, the present invention discloses an in-shaft flow guide device for a copper extruder, wherein the in-shaft flow guide device is arranged in a die shaft 100 and a die bearing pressure pad 200 which are connected to each other, and the die shaft 100 and the die bearing pressure pad 200 are both arranged in the copper extruder, and a connected flow guide hole is opened between the die shaft 100 and the die bearing pressure pad 200, and the in-shaft flow guide device comprises a plurality of flow guide slot blocks 1 which are sleeved in the flow guide hole and connected to each other, and the flow guide slot blocks 1 are provided with wire blank channels 11 at intervals along the circumferential direction, and the copper material is extruded out through the wire blank channels 11, and the plurality of flow guide slot blocks 1 are connected by a first fastener 2, and a fastening through hole is opened in the middle of the flow guide slot blocks 1, and the wire blank channels 11 and the fastening through holes between two adjacent flow guide slot blocks 1 correspond to each other, and a second fastener 3 is arranged in the fastening through hole, and the second fastener 3 passes through the fastening through hole, and the second fastener 3 is threadedly connected to the third fastener 4 at both ends, and the die bearing pressure pad 20 A groove is provided on the side away from the die shaft 100, and a filler 5 is provided in the groove. The outer diameter of the filler 5 matches the inner diameter of the groove. The filler 5 and the groove are in interference connection. A quick-change through hole 54 matching the guide hole is provided on the filler 5. A first step 51, a second step 52, and a slide groove 53 are provided in the filler 5 in sequence. The first step 51 is transitionally connected with the quick-change through hole 54. The inner wall of the first step 51 is sleeved on the outer periphery of the guide groove block 1, and the inner wall of the second step 52 is sleeved with a flange 6. A square hole 61 matching the wire blank channel 11 is provided on the flange 6. Filling can be directly added to the wire blank channel 11 through the square hole 61. The flange 6 is connected to the guide groove block 1 through a first fastener 2. A through hole matching the fastening through hole is provided in the center of the flange 6. A baffle 7 is slidably connected in the slide groove 53. The cross-sectional shape of the slide groove 53 matches the cross-sectional shape of the baffle 7. The baffle 7 is connected to the die bearing pressure pad 200 through a fourth fastener 8.

[0033] As a specific implementation, in the in-shaft flow guide device for a copper extruder of the present invention, the number of wire blank channels 11 is 2 to 6, more specifically, the number of wire blank channels 11 is 2. Of course, a flow guide trough block 1 with different wire blank channels 11 can be prepared according to actual use conditions for easy replacement.

[0034] As a specific implementation, in the in-shaft guide device for a copper extruder of the present invention, the number of guide groove blocks 1 is 2 to 6, more specifically, the number of guide groove blocks 1 is 4. Of course, the number of guide groove blocks 1 needs to be set according to the actual use conditions such as the shape and size of the mold shaft 100.

[0035] Furthermore, in the in-shaft flow guide device for a copper extruder of the present invention, a portion of one side of the flange 6 abuts against the end face of the first step 51, and another portion abuts against the end face of the flow guide groove block 1, and the other side of the flange 6 abuts against the end face of the baffle 7. During the extrusion operation of the copper extruder, the position of the flange 6 is relatively fixed due to the axial restriction of the baffle 7.

[0036] Furthermore, in the in-shaft flow guide device for a copper extruder of the present invention, one end of the second fastener 3 passes through the flow guide trough block 1 and is fixed by the third fastener 4, and the other end passes through the flow guide trough block 1 and the flange 6 in sequence and is fixed by the third fastener 4. This arrangement is to perform secondary reinforcement of the connection after the connection between the flange 6 and the flow guide trough block 1 and between adjacent flow guide trough blocks 1 is reinforced by the first fastener 2, thereby ensuring the stability and safety of the flow guide trough block 1 during the extrusion process of the copper extruder.

[0037] Furthermore, in the in-shaft guide device for a copper extruder of the present invention, a countersunk hole 12 is provided on the guide groove block 1 close to the die shaft 100 and away from the die bearing pressure pad 200, and the third fastener 4 is arranged in the countersunk hole 12. Such an arrangement can make the fastening effect of the third fastener 4 better.

[0038] As a specific implementation, in the shaft guide device for a copper extruder of the present invention, the first fastener 2 is a positioning pin, the second fastener 3 is a fastening screw, and threads are provided at both ends of the fastening screw. The third fastener 4 is a fastening nut, and the fourth fastener 8 is a fastening screw. Of course, the first fastener 2, the second fastener 3, the third fastener 4, and the fourth fastener 8 can also use other fasteners as long as they meet their respective fastening effects, and are not limited here.

[0039] On the other hand, the in-shaft flow guiding method for a copper extruder of the present invention is implemented using the in-shaft flow guiding device described above, and specifically comprises the following steps:

[0040] Step 1: Before the reverse copper extruder wire is ready for extrusion, the die shaft 100 and the die bearing pressure pad 200 are moved out of the extruder to assemble the inner shaft guide device;

[0041] Step 2: Connect the multiple guide trough blocks 1 in sequence through the first fastener 2, and install the flange 6 on the side of the guide trough block 1 away from the mold shaft 100 through the first fastener 2, then pass the second fastener 3 through the fastening through hole and the through hole guide chute 53 on the flange 6, and use the third fastener 4 to fix the two ends of the second fastener 3. At this time, the positions between the multiple guide trough blocks 1 and the flange 6 are relatively fixed;

[0042] Step 3: insert multiple guide groove blocks 1 into the guide flow hole, so that one end surface of the flange 6 abuts against the end surface of the first step 51, and the other end surface is located in the same plane as the end surface of the second step 52. At this time, the flange 6 is embedded in the inner wall of the second step 52;

[0043] Step 4: Slide the baffle 7 into the slide groove 53 so that the baffle 7 limits the axial position of the flange 6. When the baffle 7 moves to the specified position, it is fixed to the die bearing pressure pad 200 by the fourth fastener 8. The baffle 7 is further fixed by the fourth fastener 8. At this time, one side of the baffle 7 abuts against the end face of the flange 6 and the end face of the second step 52, and the other side is located in the same plane as the end face of the supplementary pad 5. At this time, since the baffle 7 limits the axial position of the flange 6, the position of the flange 6 is relatively fixed;

[0044] Step 5: Place the assembled in-shaft flow guide device, die shaft 100, and die bearing pressure pad 200 in the extruder to perform reverse copper extruder wire extrusion.

[0045] Furthermore, in the in-shaft guide method for a copper extruder of the present invention, when the guide trough block 1 needs to be replaced, the fourth fastener 8 is removed, and the baffle 7 can slide in the slide groove 53 at this time. Then, the baffle 7 is slid to an axial position where the flange 6 is not restricted, and then the flange 6 and the guide trough block 1 are pulled out, and the new guide trough block 1 and flange 6 are inserted into the guide flow hole, and finally, the baffle 7 is used to limit the axial displacement of the flange 6 to complete the replacement of the guide trough block 1.

[0046] In summary, compared with the prior art, the shaft inner flow guide device and method for copper extruder of the present invention has the following advantages and positive effects:

[0047] (1) In the present invention, the first fastener 2 is used to reliably position the multi-section guide trough blocks 1, and the second fastener 3 and the third fastener 4 are used to form the inner shaft guide device, the die shaft 100, and the die bearing pressure pad 200 as a whole for secondary fixation, so that it has stability, solves the problem that the wire blank is easily stuck or scratched at the joints between the multi-section guide trough blocks 1 and between the guide trough block 1 and the flange 6, and improves the stability of the copper extruder during the extrusion operation;

[0048] (2) In the present invention, the flange 6 is installed on the inner wall of the second step 52 of the patch 5. When the guide groove block 1 is replaced, the flange 6 does not need to be removed, and the in-shaft guide device can be quickly pulled out of the quick-change through hole 54 as a whole. The replacement efficiency is high, the safety is good, the structure is simple, the disassembly and assembly are convenient, and the operation difficulty is relatively low.

[0049] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper" and "lower" in this article are all referenced to the placement state shown in the accompanying drawings.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An in-shaft flow guide device for a copper extruder, wherein the in-shaft flow guide device is arranged in a die shaft and a die bearing pressure pad connected to each other, and a communicating flow guide hole is opened between the die shaft and the die bearing pressure pad, characterized in that: The in-shaft flow guide device includes a plurality of flow guide slot blocks sleeved in the flow guide hole and connected to each other, the flow guide slot block being provided with wire blank channels at intervals along the circumferential direction, the plurality of flow guide slot blocks being connected by a first fastener, a fastening through hole being provided in the middle of the flow guide slot block, a second fastener being provided in the fastening through hole, third fasteners being connected at both ends of the second fastener, a groove being provided on the side of the mold bearing pressure pad away from the mold shaft, a supplementary pad being provided in the groove, a quick-change through hole being provided on the supplementary pad matching the flow guide hole, a first step, a second step and a slide groove being provided in the supplementary pad in sequence, an inner wall of the first step being sleeved on the outer periphery of the flow guide slot block, an inner wall of the second step being sleeved with a flange, a square hole matching the wire blank channel being provided on the flange, the flange being connected to the flow guide slot block by a first fastener, a baffle being slidably connected in the slide groove, and the baffle being connected to the mold bearing pressure pad by a fourth fastener.

2. The shaft inner flow guide device for a copper extruder according to claim 1, characterized in that: A portion of one side of the flange abuts against the first step end surface, and another portion abuts against the end surface of the guide channel block, and the other side of the flange abuts against the end surface of the baffle.

3. The shaft inner flow guide device for a copper extruder according to claim 1, characterized in that: One end of the second fastener passes through the guide channel block and is then fixed by the third fastener, and the other end passes through the guide channel block and the flange in sequence and is then fixed by the third fastener.

4. The shaft inner flow guide device for a copper extruder according to claim 1, characterized in that: The guide groove block is provided with a countersunk hole close to the mold shaft and away from the mold bearing pressure pad. The third fastener is arranged in the countersunk hole.

5. The shaft inner flow guide device for a copper extruder according to claim 1, characterized in that: The first fastener is a positioning pin.

6. The shaft inner flow guide device for a copper extruder according to claim 1, characterized in that: The second fastener is a fastening screw, and threads are arranged at both ends of the fastening screw.

7. The shaft inner flow guide device for a copper extruder according to claim 1, characterized in that: The third fastener is a fastening nut.

8. The shaft inner flow guide device for a copper extruder according to claim 1, characterized in that: The fourth fastening member is a fastening screw.

9. A method for guiding flow in a shaft of a copper extruder, the method being implemented by using the in-shaft guiding device according to any one of claims 1 to 8, comprising: Step 1: before the reverse copper extruder wire is ready for extrusion, the die shaft and the die bearing pressure pad are moved out of the extruder for assembly; Step 2: Connect the plurality of guide trough blocks in sequence with each other through the first fasteners, and install the flange on the side of the guide trough block away from the mold shaft through the first fasteners, then pass the second fasteners through the fastening through holes and the flanges, and fix the second fasteners at both ends with the third fasteners; Step 3: inserting a plurality of the guide groove blocks into the guide flow hole, so that one end surface of the flange abuts against the first step end surface, and the other end surface is located in the same plane as the second step end surface; Step 4: Slide the baffle into the slide groove so that the baffle limits the axial position of the flange. When the baffle moves to the specified position, it is fixed to the die bearing pressure pad by the fourth fastener. At this time, one side of the baffle abuts against the flange end face and the second step end face, and the other side is located in the same plane as the end face of the supplementary pad. Step 5: placing the assembled in-shaft flow guide device in the extruder to perform reverse copper extruder wire extrusion.

10. The method for guiding flow in the shaft of a copper extruder according to claim 9, characterized in that: When the guide trough block needs to be replaced, the fourth fastener is removed, the baffle is slid to an axial position where the flange is not restricted, and then the flange and the guide trough block are pulled out for replacement.

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