Demoulding outer frame structure special for drawing thin-wall capillary belt core

Abstract

The invention provides a special demoulding outer frame structure for drawing a thin-wall capillary belt core. The special demoulding outer frame structure is composed of a vertical plate, a bearing seat, large-angle aluminum, a bottom plate, a cross beam, a front guide pipe, small-angle aluminum, a baffle, profile aluminum, a rear guide pipe and a standard bolt assembly. Wherein the two vertical plates are placed on the bottom plate and fixed to the bottom plate through three sets of large-angle aluminum arranged on the inner side and the outer side of the lower end at equal intervals, the upper end is fixed through section aluminum, and the rigidity and stability of the structure are guaranteed; two baffles are symmetrically arranged between the two vertical plates and are combined and fixed through four cross beams and eight pieces of small-angle aluminum; a demolding working area is arranged between the two baffles, and a front guide pipe and a rear guide pipe are installed on the outer sides of the two baffles respectively and used for feeding in and discharging out of the thin-wall capillary tube. Three bearing seats are respectively mounted on the outer sides of the two vertical plates and are used for fixing bearings in a demolding working area, and the relative height among the bearings is realized by adjusting the positions of the bearing seats. Demoulding of thin-wall capillary tubes with different tube diameters can be realized by adjusting the height of the bearing seat.

Description

Technical Field

[0001] The present invention provides a special demoulding outer frame structure for drawing a thin-walled capillary tube with a core, which is applicable to demoulding during the drawing of a thin-walled capillary tube with a core made of a superalloy. It can perform demoulding treatment on thin-walled capillary tubes with cores of different diameters, and provide a capillary tube with a small outer diameter, a thin wall, and meeting the usage requirements for a high-intensity pre-cooler, belonging to the field of aerospace science and technology. Background Art

[0002] With the development of national defense technology, hypersonic aircraft have become the focus of research at home and abroad. As an important component of a hypersonic aircraft, the heat exchanger of a high-intensity pre-cooling engine has become a research hotspot in the power system of hypersonic aircraft. At present, important progress has been made in the field of manufacturing and testing of high-intensity pre-coolers at home and abroad. A large number of key technologies have been tackled, and the technology maturity has been continuously improved. The key component of a high-intensity pre-cooler is a heat exchange tube row composed of an array of thin-walled capillary tubes made of superalloy, which has high requirements for the outer diameter and wall thickness of the thin-walled capillary tubes. As is well known, the smaller the diameter of the capillary tube and the thinner the wall thickness, the higher the heat exchange efficiency, and the more difficult it is to process and form the capillary tube. The technology of drawing a thin-walled capillary tube with a core can reduce the diameter and the wall thickness simultaneously, but it is difficult to demould the core rod during the drawing process. Therefore, the demoulding for drawing a thin-walled capillary tube with a core is one of the key points in the research and development of the entire high-intensity pre-cooling hypersonic aircraft power technology.

[0003] According to the characteristics of the extremely small diameter and ultra-thin wall thickness of the thin-walled capillary tubes in the pre-cooler of a high-intensity pre-cooling hypersonic aircraft power system, it is necessary to design a special demoulding outer frame structure for drawing a thin-walled capillary tube with a core to ensure that the diameter, wall thickness, and straightness of the thin-walled capillary tube meet the usage requirements. At the same time, the device should also meet the demoulding requirements for thin-walled capillary tubes of different diameters and the characteristics that the thin-walled tubes are not easily deformed. The existing processing technology for thin-walled capillary tubes is the floating plug coiling type processing. The capillary tubes processed by this technology have problems such as eccentricity and uneven wall thickness, and the processed thin-walled capillary tubes are bent tubes. Currently, there is no structural device that can meet such requirements. The present invention provides a special demoulding outer frame structure for drawing a thin-walled capillary tube with a core to provide a reliable, stable, and adjustable outer frame structure for demoulding the thin-walled capillary tube with a core mold to solve the existing problems. Summary of the Invention

[0004] (1) Objectives

[0005] To ensure that the thin-walled capillary tubes used in the heat exchange tube row of a high-intensity pre-cooler have characteristics such as a small diameter, a thin wall, and small deformation of the tube wall, and at the same time ensure the demoulding of multi-size thin-walled capillary tubes with cores and the high precision and high stability of the overall device, it is necessary to design a special demoulding outer frame structure for drawing a thin-walled capillary tube with a core. The present invention provides a special demoulding outer frame structure for drawing a thin-walled capillary tube with a core.

[0006] (2) Technical solution

[0007] The present invention relates to a special demoulding outer frame structure for drawing a thin-walled capillary tube with a core, and its technical solution is as follows:

[0008] Figure 1 It is an assembly drawing of a special demoulding outer frame structure for drawing a thin-walled capillary tube with a core, mainly composed of vertical plates 1, bearing seats 2, large angle aluminum 3, bottom plates 4, cross beams 5, front ducts 6, small angle aluminum 7, baffles 8, profile aluminum 9, rear ducts 10 and numerous standard bolt assemblies. Among them, the vertical plates 1, large angle aluminum 3, cross beams 5, small angle aluminum 7, baffles 8, and profile aluminum 9 are made of aluminum alloy; the bearing seats 2 are made of stainless steel; the bottom plates 4 are made of die steel; the front ducts 6 and rear ducts 10 are made of PEEK plastic. Their relationship is as follows: Two vertical plates 1 are placed on the bottom plate 4 and fixed to the bottom plate 4 through three groups of large angle aluminum 3 arranged equidistantly on the inner and outer sides of the lower end, and fixed by profile aluminum 9 at the upper end to ensure the stiffness and stability of the structure; Two baffles 8 are symmetrically placed between the two vertical plates 1 and fixed by combining 4 cross beams 5 and 8 small angle aluminum 7; The demoulding working area is between the two baffles 8, and a front duct 6 and a rear duct 10 are respectively installed on the outer sides of the two baffles 8 for feeding and outputting the thin-walled capillary tube; Three bearing seats 2 are respectively installed on the outer sides of the two vertical plates 1 for fixing the bearings in the demoulding working area, and the relative height between the bearings can be achieved by adjusting the position of the bearing seats 2. The above-mentioned components are fixed by using a combination of standard bolts + washers + nuts. The thin-walled capillary tube to be demoulded is fed through the front duct 6 and output from the rear duct 10 after passing through the demoulding working area.

[0009] For the said vertical plate 1, the specific structural form is shown in Figure 2 and it can be processed from aluminum alloy profiles. Three round holes are opened in the upper position of the vertical plate 1 for installing bearings. Four round holes are respectively opened at the four corners of the round holes for fixing the bearing seats 2, and the position of the holes can be adjusted according to the bearing height; Four round holes in a rectangular array are respectively arranged on both sides above the vertical plate 1 for fixing the profile aluminum 9; Four round holes are respectively opened on both sides of the vertical plate 1 for fixing the small angle aluminum 7; Six round holes are opened at the lower part of the vertical plate 1 for fixing the large angle aluminum 3.

[0010] The said bearing seat 2 is a standard bearing seat. By reprocessing the four round holes at the four corners of the bearing seat 2 to it is used for fine adjustment in the height direction of the bearing, so as to adjust the pressing force during the demoulding process of the thin-walled capillary tube to be demoulded.

[0011] The said large angle aluminum 3 is a standard specification angle aluminum, and its size specification can be adjusted according to the size of the structure.

[0012] The bottom plate 4 has a specific structural form as shown in Figure 3 , and it can be processed from die steel plates. The left area of the bottom plate 4 is the working area, where round holes for fixing the large angle aluminum 3 are machined. The right area of the bottom plate 4 is the power area, which is used to place power output accessories such as motors.

[0013] The cross beam 5 has a specific structural form as shown in Figure 4 , and it can be processed from aluminum alloy profiles. There are horizontally equally spaced round holes in the middle position of the cross beam 5 for fixing the cross beam 5 and the baffle 8; the vertically distributed round holes on both sides of the cross beam 5 are for fixing the small angle aluminum 7 and the vertical plate 1.

[0014] The front conduit 6 has a specific structural form as shown in Figure 5 , and it can be processed and modified from PEEK plastic. The upper end of the front conduit 6 is plate-shaped, with three round holes machined in the center position for feeding the thin-walled capillary to be demolded. Four round holes are machined at the four corners for fixing the front conduit 6 on the baffle 8. The size and number of the three central round holes can be adjusted according to the diameter size and specification quantity of the thin-walled capillary; the lower end is three tubular shapes, serving as the feeding channel for the thin-walled capillary to be demolded.

[0015] The small angle aluminum 7 is a standard specification angle aluminum, and its size specification can be adjusted according to the structural size.

[0016] The baffle 8 has a structural form as shown in Figure 6 , and it can be processed from aluminum alloy profiles. There are round holes in the middle position of the baffle 8, serving as the inlet and outlet channels for the thin-walled capillary to be demolded. Four small round holes are machined around the round holes for fixing the front conduit 6 and the rear conduit 10; the horizontally equally spaced small round holes at the upper and lower ends of the baffle 8 are for fixing the cross beam 5, and the vertically distributed small round holes are for fixing the small angle aluminum 7, the cross beam 5 and the baffle 8.

[0017] The shaped aluminum 9 is a standard specification shaped aluminum, and its size specification can be adjusted according to the structural size.

[0018] The rear conduit 10 has a structural form as shown in Figure 7 , and it can be processed and modified from PEEK plastic. The upper end of the rear conduit 10 is plate-shaped, with round holes in the center position for outputting the demolded thin-walled capillary. Four round holes are machined at the four corners for fixing the rear conduit 10 on the baffle 8. The round hole in the center position can be adjusted according to the specification quantity of the thin-walled capillary demolded at one time; the lower end is tubular, serving as the output channel for the demolded thin-walled capillary.

[0019] (3) Advantages and effects

[0020] According to the processing and forming requirements of the thin-walled capillary in the high-precooling hypersonic flight power system, the present invention provides a special demoulding outer frame structure for the drawing of thin-walled capillary with a core. The advantages are mainly reflected in: 1. This structure can realize the demoulding of thin-walled capillaries with different pipe diameters by adjusting the height of the bearing seat; 2. This structure is designed with inlet and outlet pipe nozzles to facilitate the entry and exit of thin-walled capillaries; 3. The overall stability of the device is improved by fixing with angle aluminum. Brief Description of the Drawings

[0021] Figure 1 is a schematic diagram of the structure of the present invention.

[0022] Figure 2 is a schematic diagram of the vertical plate 1.

[0023] Figure 3 is a schematic diagram of the bottom plate 4.

[0024] Figure 4 is a schematic diagram of the cross beam 5.

[0025] Figure 5 is a schematic diagram of the front conduit 6.

[0026] Figure 6 is a schematic diagram of the baffle 8.

[0027] Figure 7 is a schematic diagram of the rear conduit 10.

[0028] Figure 1 The sequence numbers and symbols in are explained as follows:

[0029] 1. Vertical plate; 2. Bearing seat; 3. Large angle aluminum; 4. Bottom plate; 5. Cross beam;

[0030] 6. Front conduit; 7. Small angle aluminum; 8. Baffle; 9. Section aluminum; 10. Rear conduit. Detailed Embodiment

[0031] Please refer to Figures 1 - 7As shown in the figure, a special demoulding outer frame structure for the drawing of thin-walled capillary tubes with cores according to the present invention mainly consists of vertical plates 1, bearing seats 2, large angle aluminums 3, bottom plates 4, cross beams 5, front ducts 6, small angle aluminums 7, baffles 8, profile aluminums 9, rear ducts 10 and numerous standard bolt assemblies. Among them, the vertical plates 1, large angle aluminums 3, cross beams 5, small angle aluminums 7, baffles 8, and profile aluminums 9 are made of aluminum alloy; the bearing seats 2 are made of stainless steel; the bottom plates 4 are made of die steel; the front ducts 6 and rear ducts 10 are made of PEEK plastic. Their relationship is as follows: Two vertical plates 1 are placed on the bottom plate 4 and fixed to the bottom plate 4 through three groups of large angle aluminums 3 equidistantly arranged on the inner and outer sides of the lower ends, and fixed at the upper ends through profile aluminums 9 to ensure the stiffness and stability of the structure; Two baffles 8 are symmetrically placed between the two vertical plates 1 and fixed by combining 4 cross beams 5 and 8 small angle aluminums 7; The demoulding working area is between the two baffles 8, and a front duct 6 and a rear duct 10 are respectively installed on the outer sides of the two baffles 8 for the feeding and output of thin-walled capillary tubes; Three bearing seats 2 are respectively installed on the outer sides of the two vertical plates 1 for fixing the bearings in the demoulding working area, and the relative height between the bearings can be achieved by adjusting the positions of the bearing seats 2. The above-mentioned components are fixed by using a combination of standard bolts + washers + nuts. The thin-walled capillary tube to be demoulded is fed in through the front duct 6 and output from the rear duct 10 after passing through the demoulding working area.

[0032] The said vertical plate 1, the specific structural form is shown in Figure 2 , and it can be processed from aluminum alloy profiles. Three round holes are opened at the upper middle position of the vertical plate 1 for installing bearings. At the four corners of the round holes, round holes are opened at each corner for fixing the bearing seat 2, and the positions of the holes can be adjusted according to the bearing height; On both sides above the vertical plate 1, there are 4 round holes in a rectangular array for fixing the profile aluminum 9; On both sides of the vertical plate, 4 round holes are respectively opened for fixing the small angle aluminum 7; At the lower part of the vertical plate, 6 round holes are opened for fixing the large angle aluminum 3.

[0033] The said bearing seat 2 is a standard bearing seat. By reprocessing the round holes at the four corners of the bearing seat 2 to , it is used for the micro-adjustment in the height direction of the bearing, so as to adjust the pressing force during the demoulding process of the thin-walled capillary tube to be demoulded.

[0034] The said large angle aluminum 3 is a standard specification angle aluminum, and the size specification can be adjusted according to the size of the structure.

[0035] The said bottom plate 4, the specific structural form is shown in Figure 3, it can be processed from die steel plates. The left side area of the bottom plate 4 is the working area, where round holes for fixing the large angle aluminum 3 are machined. The right side area of the bottom plate 4 is the power area, which is used to place power output accessories such as motors.

[0036] The cross beam 5, the specific structural form is shown in Figure 4 , it can be processed from aluminum alloy profiles. There are horizontally equally spaced round holes in the middle position of the cross beam 5, which are used to fix the cross beam 5 and the baffle 8; the vertically distributed round holes on both sides of the cross beam 5 are used to fix the small angle aluminum 7 and the vertical plate 1.

[0037] The front conduit 6, the specific structural form is shown in Figure 5 , it can be processed and modified from PEEK plastic. The upper end of the front conduit 6 is plate-shaped, and three round holes are machined in the center position, which are used to feed the thin-walled capillary to be demolded. Four round holes are machined at the four corners, which are used to fix the front conduit 6 on the baffle 8. The size and quantity of the three round holes in the center can be adjusted according to the diameter size and specification quantity of the thin-walled capillary; the lower end is three tubular shapes, which serve as the feeding channels for the thin-walled capillary to be demolded.

[0038] The small angle aluminum 7 is a standard specification angle aluminum, and the size specification can be adjusted according to the structural size.

[0039] The baffle 8, the structural form is shown in Figure 6 , it can be processed from aluminum alloy profiles. There are round holes in the middle position of the baffle 8, which serve as the inlet and outlet channels for the thin-walled capillary to be demolded. Four small round holes are machined around the round holes, which are used to fix the front conduit 6 and the rear conduit 10; the horizontally equally spaced small round holes at the upper and lower ends of the baffle 8 are used to fix the cross beam 5, and the vertically distributed small round holes are used to fix the small angle aluminum 7, the cross beam 5 and the baffle 8.

[0040] The profile aluminum 9 is a standard specification profile aluminum, and the size specification can be adjusted according to the structural size.

[0041] The rear conduit 10, the structural form is shown in Figure 7 , it can be processed and modified from PEEK plastic. The upper end of the rear conduit 10 is plate-shaped, and there are round holes in the center position, which are used to output the demolded thin-walled capillary. Four round holes are machined at the four corners, which are used to fix the rear conduit 10 on the baffle 8. The round hole in the center position can be adjusted according to the specification quantity of the thin-walled capillary demolded at one time; the lower end is tubular, which serves as the output channel for the demolded thin-walled capillary.

[0042] When the device is working, the thin-walled capillary to be demolded is fed in from the front conduit 6, and after being demolded through the demolding working area, it is output from the rear conduit 10, so as to achieve the effect of separating the thin-walled capillary from the mandrel. There are three groups of upper, middle and lower bearing seats 2 in this device. The upper bearing seat 2 is the driving shaft, and the other two groups are driven shafts, and demolding molds are assembled on the two groups of driven shafts. This device can adjust the gap between the two groups of driven shafts according to the size of the mold to be demolded, so as to realize the demolding of thin-walled capillaries with different pipe diameters; the minimum gap between the two groups of driven shafts is 1 mm, and the maximum gap is 6 mm, that is, the outer diameter range value of the thin-walled capillaries that can be demolded by this device is 1-6 mm.

Claims

1. A special demoulding outer frame structure for drawing thin-wall capillary cores, characterized in that: It consists of vertical plates, bearing seats, large-angle aluminum, bottom plates, crossbeams, front ducts, small-angle aluminum, baffles, aluminum profiles, rear ducts and standard bolt assemblies; among them, two vertical plates are placed on the bottom plate, fixed to the bottom plate by three groups of large-angle aluminum equidistantly placed on the inner and outer sides of the lower end, and the upper end is fixed by aluminum profiles to ensure the rigidity and stability of the structure; two baffles are symmetrically placed between the two vertical plates, fixed by a combination of four crossbeams and eight small-angle aluminums; the demoulding work area is between the two baffles, and the front duct and the rear duct are respectively installed on the outside of the two baffles for the feeding and output of thin-walled capillaries; three bearing seats are respectively installed on the outside of the two vertical plates for fixing the bearings in the demoulding work area, and the relative height between the bearings is achieved by adjusting the position of the bearing seats.

2. A special demoulding outer frame structure for drawing a thin-walled capillary with a core according to claim 1, characterized in that: All parts are fixed with a standard bolt + washer + nut combination; the thin-walled capillary to be demoulded is fed in from the front guide tube and output from the rear guide tube after passing through the demoulding work area.

3. A special demoulding outer frame structure for drawing a thin-walled capillary with a core according to claim 1 or 2, characterized in that: The vertical plate, large-angle aluminum, crossbeam, small-angle aluminum, baffle, and aluminum profile are made of aluminum alloy; the bearing seat is made of stainless steel; the bottom plate is made of mold steel; the front duct and rear duct are made of PEEK plastic.

4. A special demoulding outer frame structure for drawing a thin-walled capillary with a core according to claim 1, characterized in that: There are 3 openings in the upper middle of the vertical plate The circular hole is used to install the bearing. There are four circular holes at each corner. The circular holes are used to fix the bearing seat. The position of the holes is adjusted according to the height of the bearing. There are 4 rectangular arrays on both sides above the vertical plate. Round holes for fixing aluminum profiles; 4 holes are opened on both sides of the vertical plate The round holes are used to fix the small angle aluminum; there are 6 holes under the vertical plate. The round holes are used to fix large angle aluminum.

5. The special demoulding outer frame structure for drawing a thin-wall capillary with a core according to claim 1, characterized in that: By The round hole is processed to It is used for fine adjustment of the bearing height direction, so as to adjust the clamping force during the demoulding process of the thin-walled capillary to be demoulded.

6. A special demoulding outer frame structure for drawing a thin-walled capillary with a core according to claim 1, characterized in that: The left side of the base plate is the working area, which has round holes for fixing large-angle aluminum. The right side of the base plate is the power area, which is used to place power output accessories, including motors.

7. A special demoulding outer frame structure for drawing a thin-wall capillary with a core according to claim 1, characterized in that: There are circular holes evenly distributed horizontally in the middle of the beam, which are used to fix the beam and the baffle; the circular holes distributed longitudinally on both sides of the beam are used to fix the small-angle aluminum and the vertical plates.

8. The special demoulding outer frame structure for drawing a thin-wall capillary with a core according to claim 1, characterized in that: The upper end of the front guide tube is plate-shaped with three circular holes in the center for feeding the thin-walled capillaries to be demolded. Four circular holes are processed at the four corners for fixing the front guide tube on the baffle. The size and number of the three central circular holes are adjusted according to the diameter and specification of the thin-walled capillaries. The lower end is three tubes, which serve as the feeding channel for the thin-walled capillaries to be demolded.

9. The special demoulding outer frame structure for drawing a thin-walled capillary with a core according to claim 1, characterized in that: The middle position of the baffle is processed The circular hole serves as the entry and exit channel for the thin-walled capillary to be demolded. Four small circular holes are processed around the circular hole to fix the front guide tube and the rear guide tube; the small circular holes evenly distributed laterally at the upper and lower ends of the baffle are used to fix the crossbeam, and the small circular holes distributed longitudinally are used to fix the small-angle aluminum, the crossbeam and the baffle.

10. The special demoulding outer frame structure for drawing a thin-wall capillary with a core according to claim 1, characterized in that: The upper end of the rear duct is plate-shaped, with a The circular hole is used to output the thin-walled capillary after demolding. There are 4 circular holes processed at the four corners for fixing the rear guide tube on the baffle. The circular hole at the center is adjusted according to the number of specifications of the thin-walled capillary demolded at one time; the lower end is tubular and serves as the output channel for the thin-walled capillary after demolding.

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