Hot box and false twist texturing machine

Abstract

The invention provides a hot box and a false twist texturing machine. The hot box comprises a box body, a plurality of hot rails arranged in the box body and a flow guide device arranged at the bottoms of the hot rails. The bottom end, close to the flow guiding device, of the hot rail is provided with an inclined guiding part extending towards the flow guiding device. The flow guide device comprises a flow guide wall and a flow guide pipe, the flow guide wall forms a flow guide cavity with an opening and integrally inclining downwards relative to the horizontal plane, and the flow guide pipe is communicated with the flow guide cavity; an opening is formed in the end, close to the inclined guide part, of the flow guide cavity, and the vertical normal of the bottom end of the inclined guide part intersects with a collecting face defined by the opening. According to the flow guide device disclosed by the invention, the energy consumption of the hot box and the false twist texturing machine is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, in particular to a hot box and a false twist texturing machine. Background Art

[0002] In the process of chemical fiber filament processing, for example, in the process of heating chemical fibers such as pre-drawn yarn (POY) in a hot box and stretching the chemical fibers through subsequent conveying rollers and performing false twist deformation on the heated chemical fibers through a false twisting device, a large amount of oil smoke is generated due to the decomposition of the chemical fibers under high temperature heating or the volatilization of additives added during the chemical fiber processing in the high temperature environment formed by the hot box.

[0003] The prior art usually uses a negative pressure source to connect the exhaust pipe of the hot box, and forms a negative pressure inside the hot box to discharge the oil smoke from the hot box. However, since it is difficult for the negative pressure source to completely and timely suck out the volatilized oil smoke in the hot box, the oil smoke adheres to the hot rail and accumulates to form oil stains. Since the hot box is usually installed at an angle, the oil stains on the hot rail drip from the gap between the hot rail and the door panel under the action of gravity. In particular, in order to improve the extraction effect of oil smoke in the prior art, it is usually necessary to continuously perform extraction operations on the oil smoke generated in the hot box or increase the suction force of the negative pressure source, but this will cause a large amount of heat loss in the hot box, thereby causing excessive heat loss in the hot box and the false twist texturing machine containing the hot box, resulting in energy waste.

[0004] It should be noted that the above introduction to the background technology is only for the convenience of providing a clear and complete description of the technical solutions of the present application and facilitating the understanding of those skilled in the art. It cannot be considered that the above technical solutions are well known to those skilled in the art simply because they are described in the background technology section of the present application. Summary of the invention

[0005] The purpose of the present invention is to disclose a hot box and a false twist texturing machine, which are used to solve the many defects of the hot box in the prior art, especially to reduce the energy consumption of the hot box and the false twist texturing machine.

[0006] To achieve the above-mentioned object, in a first aspect, the present invention provides a heat box, comprising: a box body, a plurality of heat rails arranged in the box body, and a flow guide device arranged at the bottom of the heat rails;

[0007] The bottom end of the hot rail close to the guide device is configured with an inclined guide portion extending toward the guide device;

[0008] The flow guiding device comprises: a flow guiding wall and a flow guiding pipe, wherein the flow guiding wall forms a flow guiding cavity with an opening and being tilted downward as a whole relative to a horizontal plane, and the flow guiding pipe is connected to the flow guiding cavity;

[0009] The opening is formed at one end of the guide cavity close to the inclined guide portion, and a vertical normal line of the bottom end of the inclined guide portion intersects with a collecting surface defined by the opening.

[0010] As a further improvement of the present invention, the guide wall comprises:

[0011] The peripheral wall of the guide cavity is enclosed and formed, and the peripheral wall is constructed with a guide portion that partially extends over the vertical normal line of the bottom end of the inclined guide portion.

[0012] As a further improvement of the present invention, the guide wall comprises:

[0013] A base, formed on the base and enclosing together with the base to form a peripheral wall of the diversion cavity;

[0014] The peripheral wall is configured with a flow guide portion partially extending beyond a vertical normal line of a bottom end of the inclined guide portion.

[0015] As a further improvement of the present invention, the guide wall comprises:

[0016] A bottom wall inclined downward relative to a horizontal plane, two oppositely disposed side walls extending along a length direction of the bottom wall, and a guide wall inclined downward relative to the horizontal plane;

[0017] The guide wall extends to the bottom wall and is laterally connected to the side wall. The guide wall extends toward the hot rail and partially extends over a vertical normal line of a bottom end of the inclined guide portion. The guide wall forms an obtuse angle with the vertical normal line. The bottom wall, the side wall and the guide wall together enclose the guide cavity.

[0018] As a further improvement of the present invention, one end of the bottom wall close to the hot rail abuts against the inclined guide portion or partially extends into the inclined guide portion.

[0019] As a further improvement of the present invention, one end of the bottom wall close to the hot rail abuts against the inclined guide portion or partially extends into the inclined guide portion, and the side wall extends toward the hot rail and abuts against the inclined guide portion or partially extends into the inclined guide portion.

[0020] As a further improvement of the present invention, one end of the peripheral wall close to the hot rail is constructed with a guide portion that abuts against the inclined guide portion or partially extends into the inclined guide portion.

[0021] As a further improvement of the present invention, one end of the guide cavity away from the opening is connected to the guide pipe, the guide pipe is arranged to be inclined downward relative to the horizontal plane, and the inner wall of the pipe opening at one end of the guide pipe connected to the guide wall and the inner wall of one side of the surrounding wall toward the hot rail smoothly transition to at least discharge oil and dirt from the box.

[0022] As a further improvement of the present invention, the guide pipe is arranged on the bottom wall, and the inner wall of the pipe opening at one end of the guide pipe connected to the bottom wall smoothly transitions to the inner wall of one side of the guide wall facing the hot rail, so as to at least discharge the oil pollution out of the box body.

[0023] As a further improvement of the present invention, the heat box further comprises:

[0024] A support plate is arranged inside the box body and connected to the guide wall.

[0025] As a further improvement of the present invention, the heat box further comprises:

[0026] A mounting groove formed in the box body, and a baffle plate disposed on the box body;

[0027] The hot rail and the guide device are arranged in the installation slot, and the baffle extends into the installation slot to clamp the guide wall.

[0028] As a further improvement of the present invention, the guide wall is constructed with a positioning portion facing the hot rail, and the positioning portion is connected to the hot rail.

[0029] As a further improvement of the present invention, the heat box further comprises: a first suction pipe penetrating through the box body and connected to the flow guide pipe.

[0030] As a further improvement of the present invention, the heat box further comprises: a second suction pipe connected to the box body and arranged away from the inclined guide portion, and the suction force formed by the second suction pipe is greater than the suction force formed by the first suction pipe.

[0031] As a further improvement of the present invention, the hot rail forms a channel for the chemical fiber to pass through, and a channel wall formed on both sides of the channel, and the channel wall and the end of the channel extend to the inclined guide portion;

[0032] The width of the guide wall in the transverse direction is greater than the transverse width between the groove walls.

[0033] In a second aspect, the present invention further provides a false twist texturing machine, comprising: a yarn conveying device, a cooling device, a false twisting device, and a heat box as described in any one of the first aspects and arranged between the yarn conveying device and the cooling device.

[0034] Compared with the prior art, the beneficial effects of the present invention are as follows: the oil is guided to converge toward the bottom end of the inclined guide portion by the inclined guide portion, and the oil drips downward from the bottom end of the inclined guide portion under the action of gravity, and the collecting surface is intersected with the vertical normal of the bottom end of the inclined guide portion, so that the oil droplets can pass through the collecting surface and enter the guide cavity from the open opening, so as to flow into the guide pipe along the guide wall, and the oil is concentratedly discharged from the hot box through the guide pipe, so that the oil is prevented from dripping from the bottom end of the hot rail through the gap between the hot rail and the door panel, and the demand for the exhaust air volume of the negative pressure source can be reduced, thereby reducing the heat loss of the hot box and the false twist texturing machine including the hot box, and reducing the energy consumption of the hot box and the false twist texturing machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic cross-sectional view of the heat box disclosed by the present invention;

[0036] Figure 2 for Figure 1 The enlarged view shown in the middle circle A, wherein the peripheral wall encloses to form a diversion cavity;

[0037] Figure 3 is a schematic diagram of a flow guiding device in another embodiment, wherein the peripheral wall and the base together enclose a flow guiding cavity;

[0038] Figure 4 is a schematic diagram of a flow guide device in another embodiment, wherein the flow guide wall includes a bottom wall, a side wall and a guide wall;

[0039] Figure 5 A schematic diagram of an end of the peripheral wall close to the hot rail abutting against the inclined guide portion;

[0040] Figure 6 A schematic diagram of an end of the bottom wall close to the hot rail abutting against the inclined guide portion;

[0041] Figure 7 It is a schematic diagram of the bottom wall and the end of the side wall close to the hot rail abutting against the inclined guide portion, wherein the side wall is constructed with a positioning portion extending toward the hot rail;

[0042] Figure 8 It is a three-dimensional schematic diagram of the heat box disclosed in the present invention with the guide device omitted;

[0043] Fig. 9 for Figure 8 The enlarged image shown in the middle circle C;

[0044] Fig.10 is a schematic diagram showing that the inclined guide portion is configured as a concave surface;

[0045] Fig.11 is a schematic diagram showing that the inclined guide portion is configured as a convex surface;

[0046] Fig.12A schematic diagram of a portion of a guide wall or guide plate extending out of a side wall and a triangular connecting plate filled with the side wall;

[0047] Fig.13 For along Fig.12 A cross-sectional view formed by cutting the bottom wall and the side wall along the DD direction;

[0048] Fig.14 A schematic diagram of forming a groove and a groove wall for a hot rail;

[0049] Fig.15 It is a schematic diagram of a false twist texturing machine including a heat box disclosed in the present invention. DETAILED DESCRIPTION

[0050] The present invention is described in detail below in conjunction with the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments are not limitations of the present invention, and any equivalent transformations or substitutions in functions, methods, or structures made by ordinary technicians in the field based on these embodiments are all within the scope of protection of the present invention.

[0051] In the process of heat treatment of chemical fiber (for example, pre-drawn yarn) by the hot box, the chemical fiber is decomposed by high temperature heating or the additives added in the chemical fiber processing process volatilize under the high temperature environment formed by the hot box, thereby forming a large amount of oil smoke. In the prior art, a negative pressure source is usually used to connect the exhaust pipes at the upper and lower ends of the hot box, and a negative pressure is formed by forming a negative pressure inside the hot box (that is, the space area 802 formed between the hot rail 10 and the door panel 801) to discharge the oil smoke from the hot box. However, since the negative pressure source is difficult to completely and timely suck out the oil smoke volatilized in the hot box, as the use time increases, the oil mist contained in the oil smoke adheres to the hot rail and gradually accumulates to form oil stains. At the same time, since the hot box is usually tilted on the false twist texturing machine, the hot rail is tilted with the hot box, and the oil stains on the hot rail flow naturally along the tilt direction of the hot rail under the action of gravity, and converge to the bottom end of the hot rail, causing the oil stains to drip from the bottom end of the hot rail from the gap between the hot rail and the door panel. In particular, in order to suppress the generation of oil pollution and improve the extraction effect of oil smoke in the prior art, it is usually necessary to continuously perform extraction operations on the oil smoke generated in the hot box or increase the suction force of the negative pressure source, but this will cause a large amount of heat loss in the hot box, thereby causing excessive heat loss in the hot box and the false twist texturing machine including the hot box, resulting in energy waste. The hot box 100 in this application can be understood as a deformation hot box configured in the false twist texturing machine 1000, or, for example, using a biphenyl heating method to heat the chemical fiber N and apply it to other types of fiber processing equipment (i.e., the upper concept of the false twist texturing machine 1000), and this application does not specifically limit or exclude it.

[0052] The heat box 100 disclosed in the present application is used to perform a heating process on chemical fibers. The oil stains are guided to gather toward the bottom end 111 of the inclined guide part 11 by the inclined guide part 11, and the oil stains are moved along the bottom end 111 of the inclined guide part 11 under the action of gravity. Figure 2 The oil droplets drip downward in the direction indicated by the middle arrow B2, and the collecting surface P intersects with the vertical normal Z of the bottom end 111 of the inclined guide portion 11, so that the oil droplets can pass through the collecting surface P and enter the guide cavity 210 through the opening 2101, so as to flow into the guide pipe 22 along the guide wall 21, and the oil is concentratedly discharged from the hot box 100 through the guide pipe 22, so as to prevent the oil from dripping from the bottom of the hot rail 10 through the gap between the hot rail 10 and the door panel 801, and can also reduce the demand for the exhaust air volume of the negative pressure source, without the need to continuously perform high-intensity oil fume extraction operations, and even the exhaust pipe (i.e., the first suction pipe 70) below the hot box 100 does not need to be connected to a negative pressure source, so that the accumulation of oil in the hot box 100 can be suppressed, and the oil can be discharged from the hot box 100, thereby reducing the heat loss in the hot box 100 and the false twist texturing machine 1000 including the hot box 100, reducing energy waste, and achieving the purpose of energy saving and consumption reduction. At the same time, combined with Fig.12 As shown, the heat box 100 disclosed in the present application can also be used in the oily environment. Figure 4 When dripping downward in the direction indicated by the middle arrow B2, it can be collected and discharged by the guide device 20, thereby effectively preventing the dripping high-temperature oil droplets from polluting the ground and preventing the dripping high-temperature oil droplets from causing personal injury to the operator in the operating channel 500 of the false twist texturing machine 1000.

[0053] Please refer to Figures 1 to 15 A specific implementation of a hot box and a false twist texturing machine is disclosed.

[0054] Ginseng Figure 1 , Figure 2 and Figure 6 and Figure 7 As shown, the heat box 100 includes: a box body 80, a plurality of heat rails 10 arranged in the box body 80, and a guide device 20 arranged at the bottom of the heat rail 10; the bottom end of the heat rail 10 close to the guide device 20 is constructed with an inclined guide portion 11 extending toward the guide device 20; the guide device 20 includes: a guide wall 21 and a guide pipe 22, the guide wall 21 forms a guide cavity 210 with an opening 2101 and is inclined downward relative to the horizontal plane, and the guide pipe 22 is connected to the guide cavity 210; the guide cavity 210 forms an opening 2101 at one end close to the inclined guide portion 11, and the vertical normal Z of the bottom end 111 of the inclined guide portion 11 intersects with the collection surface P defined by the opening 2101.

[0055] During the heating process of the heat box 100 on the chemical fiber, the oil accumulated on the heat rail 10 flows naturally along the inclined direction of the heat rail 10 under the action of gravity and gathers toward the bottom end of the heat rail 10. The oil gathered toward the bottom end of the heat rail 10 is guided by the inclined guide part 11. Figure 2 The oil flows along the inclined guide portion 11 in the direction indicated by the middle arrow B1, so that the oil is gathered toward the bottom end 111 of the inclined guide portion 11. Under the action of gravity, the oil flows from the bottom end 111 of the inclined guide portion 11 along the Figure 2 The oil drops downward in the direction indicated by the middle arrow B2. Since the collecting surface P intersects with the vertical normal Z of the bottom end 111 of the inclined guide portion 11, the oil droplets can pass through the collecting surface P and enter the guide cavity 210 through the opening 2101, and flow into the guide pipe 22 along the guide wall 21, and the oil is discharged from the hot box 100 through the guide pipe 22.

[0056] In some examples, reference Figure 1 and Figure 7 and Figure 8 As shown, the box body 80 is the outer shell of the heat box 100, which is used to accommodate the heat rail 10 and the guide device 20. The chemical fiber N forms a moving path M when being transported to the heat box 100, and the chemical fiber N is heated by the high temperature environment in the heat box 100. The heat box 100 is tiltedly installed on the false twist texturing machine 1000, and the heat rail 10 is tilted with the heat box 100, so the heat rail 10 has a certain tilt angle relative to the horizontal plane, such as 50°, 55°, 60°, etc., and the present invention is not limited to this, so that the oil can flow naturally along the heat rail 10 by gravity and gather at the bottom end 111 of the inclined guide part 11.

[0057] In some examples, the guide wall 21 and the guide tube 22 are configured as an integrated structure, or the guide wall 21 and the guide tube 22 are configured as detachable split components, which is not limited in the present invention.

[0058] In some examples, the inclined guide portion 11 may be configured as follows Figure 2 The plane shown in Fig.10 and Fig.11 The curved surface shown in the figure, or even a combination of a curved surface and a flat surface (this state is not shown), can be used as long as it can guide the convergence to the bottom end 111 of the inclined guide portion 11. For example, the inclined guide portion 11 provided with a curved surface is as follows Fig.10 The concave surface 11b shown in FIG. 1 is concave upward relative to the horizontal plane h2, or Fig.11 The convex surface 11a shown in FIG. 1 is convex downward relative to the horizontal plane h1, but the present invention is not limited to this.

[0059] In some examples, the inclined guide portion 11 extends toward the guide wall 21 , and the extending direction of the inclined guide portion 11 forms an angle with the horizontal plane. The flow speed of the oil can be adjusted by setting the inclination angle of the inclined guide portion 11 .

[0060] In some examples, reference Figure 2 As shown, the guide cavity 210 is tilted downward relative to the horizontal plane H as a whole. Figure 2 As shown in , the overall inclination direction E of the guide cavity 210 forms an angle α with the horizontal plane H. By setting the angle α of the guide cavity 210 to adjust the flow direction of the oil, it is ensured that the oil can flow smoothly to the guide tube 22 under the action of gravity, while preventing the oil from stagnating and accumulating on the guide wall 21. It should be noted that when the guide wall 21 does not interfere with the moving path M formed by the chemical fiber in the box body 80, the closer the angle α is to 90°, the faster the flow speed of the oil on the guide wall 21, and the higher the discharge efficiency. By adjusting the angle α of the guide cavity 210, the efficient discharge of the oil can be ensured, and it is necessary to ensure that the moving path M of the chemical fiber is not affected.

[0061] In some examples, the hot rail 10 forms a channel 12 for the chemical fiber to pass through, and a channel wall 13 formed on both sides of the channel 12, and the ends of the channel wall 13 and the channel 12 extend to the inclined guide portion 11. In the process of the hot box 100 performing a heating treatment on the chemical fiber, the oil mist contained in the oil smoke adheres to the surface of the channel wall 13 and the channel 12 and gradually accumulates to form oil stains. The oil stains accumulated on the surface of the channel wall 13 and the channel 12 flow naturally along the inclined direction of the hot rail 10 under the action of gravity, so as to flow smoothly to the inclined guide portion 11 at the ends of the channel wall 13 and the channel 12, avoid being accumulated on the surface of the channel wall 13 and the channel 12, and finally discharged from the hot box 100.

[0062] Ginseng Fig.14 As shown, the guide wall 21 is arranged in a transverse direction (ie, Figure 8 The width w2 formed by the guide wall 21 (in the direction shown by the X-axis) is greater than the lateral width w1 between the groove walls 13. The lateral width w2 of the guide wall 21 is greater than the lateral width w1 of the three groups of groove walls 13. The lateral width w of the guide wall 21 includes the width of the bottom wall 214 that abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11, and also includes the overall width of the bottom wall 214 and the side wall 215 that abut against the inclined guide portion 11 or partially extend into the inclined guide portion 11, and also includes the width of the guide cavity 210 formed by the surrounding wall 211, so that the guide wall 21 can fully guide the oil flowing from the groove wall 13 and the end of the channel 12 to the inclined guide portion 11 into the guide cavity 210, and avoid leakage of the oil in the process of flowing toward the guide wall 21.

[0063] In some examples, reference Figure 2 As shown, the guide wall 21 includes: a peripheral wall 211 (ie, Figure 2 The peripheral wall 211a shown in FIG. 210a is constructed with a guide portion 2111 extending partially through the vertical normal Z of the bottom end 111 of the inclined guide portion 11. The opening 2101 and the guide portion 2111 together define: Figure 2 The collecting surface P1 shown in the figure is formed so that the vertical normal Z of the bottom end 111 of the inclined guide portion 11 intersects with the collecting surface P1. Figure 2 When dripping downward in the direction indicated by the middle arrow B2, the oil stains enter the guide cavity 210 through the opening 2101 through the vertical normal Z of the bottom end 111 of the inclined guide portion 11 through the guide portion 2111 and drip onto the guide portion 2111. The guide portion 2111 then guides the oil stains to flow along the peripheral wall 211a to the guide pipe 22, and the oil stains are discharged from the hot box 100 through the guide pipe 22.

[0064] In some examples, reference Figure 3 As shown, the guide wall 21 includes: a base 213, a peripheral wall 211 (ie, Figure 3 The peripheral wall 211 is constructed with a guide portion 2111 extending partially through the vertical normal Z of the bottom end 111 of the inclined guide portion 11. The opening 2101 and the guide portion 2111 are jointly defined as follows: Figure 3 The collecting surface P2 shown in the figure is formed so that the vertical normal Z of the bottom end 111 of the inclined guide portion 11 intersects with the collecting surface P2. Figure 3 When dripping downward in the direction indicated by the middle arrow B2, since the guide portion 2111 extends over the vertical normal Z of the bottom end 111 of the inclined guide portion 11, the oil will enter the guide cavity 210 through the opening 2101 and drip onto the guide portion 2111, and then the guide portion 2111 will guide the oil to flow along the peripheral wall 211b to the guide pipe 22, and the oil will be discharged from the hot box 100 through the guide pipe 22.

[0065] In some examples, reference Figure 5 As shown, one end of the peripheral wall 211 close to the hot rail 10 is configured to have a guide portion 2122 that abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11. Figure 5 Taking the guide wall 21 including the base 213 and the peripheral wall 211b as an example, the guide portion 2122 is formed on the peripheral wall 211b. The opening 2101, the guide portion 2111 and the guide portion 2122 are collectively defined as follows: Figure 5 The collecting surface P3 shown in the figure is formed so that the vertical normal Z of the bottom end 111 of the inclined guide portion 11 intersects with the collecting surface P3. The inclined guide portion 11 guides the oil stains along the upper side of the inclined guide portion 11. Figure 5The oil flows toward the peripheral wall 211 in the direction indicated by the middle arrow B1. Since the drainage portion 2122 abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11, some of the oil that does not drip from the bottom end 111 of the inclined guide portion 11 can flow from the bottom end 111 of the inclined guide portion 11 along the Figure 5 The oil passes through the drainage portion 2122 and flows into the diversion cavity 210 in the direction indicated by the middle arrow B21, and then is guided by the base 213 to flow to the diversion pipe 22, through which the oil is discharged from the heat box 100 in a centralized manner.

[0066] In some examples, the drainage portion 2122 partially extends into the inclined guide portion 11 (this state is not shown), so that the joint between the peripheral wall 211 and the inclined guide portion 11 is tighter to reduce possible gaps, prevent oil from leaking when flowing toward the peripheral wall 211, and reduce the risk of contamination of the external working area of ​​the heat box 100.

[0067] In some examples, reference Figure 2 and Figure 3 As shown, the end of the guide cavity 210 away from the opening 2101 is connected to the guide pipe 22, and the guide pipe 22 is arranged to be inclined downward relative to the horizontal plane. The inner wall 221 of the pipe opening at the end of the guide pipe 22 connected to the guide wall 21 and the peripheral wall 211 smoothly transition toward the inner wall 2113 of one side of the hot rail 10, so as to at least discharge the oil from the box body 80. Under the action of gravity, the oil flows from the bottom end 111 of the inclined guide part 11 along the Figure 2 (or Figure 3 ) drips downward to the guide cavity 210 in the direction indicated by the arrow B2, and the oil is guided to flow to the guide pipe 22 through the guide portion 2111, and the oil is discharged from the hot box 100 through the guide pipe 22. The inner wall 221 of the pipe mouth and the inner wall 2113 of the peripheral wall 211 smoothly transition, so that the oil on the guide portion 2111 can flow into the guide pipe 22 more smoothly through the inner wall 221 of the pipe mouth, and the oil is discharged from the guide pipe 22 to form a space area 802 between the door plate 801 and the hot rail 10, so as to finally discharge the oil from the box body 80, so as to avoid the oil from being retained or accumulated in the guide cavity 210 due to the flow resistance of the oil, so as to improve the efficiency of oil discharge.

[0068] It should be noted that Figure 2 and Figure 3As shown, the area of ​​the opening 2101 of the guide cavity 210 can be greater than, less than, or equal to the area of ​​the connecting port 222 formed by the connection between the guide tube 22 and the guide cavity 210, as long as the oil dripping downward from the bottom end 111 of the inclined guide portion 11 can pass through the opening 2101 into the guide cavity 210, so that the guide tube 22 can discharge the oil. And the collecting surface P can be a plane, a concave surface, or a convex surface, as long as the oil dripping downward from the bottom end 111 of the inclined guide portion 11 can pass through the collecting surface P through the opening 2101 to enter the guide cavity 210.

[0069] In some examples, reference Figure 4 and Fig.13 As shown, the guide wall 21 includes: a bottom wall 214 inclined downward relative to a horizontal plane, two oppositely arranged side walls 215 extending along the length direction of the bottom wall 214, and a guide wall 216 inclined downward relative to the horizontal plane; the guide wall 216 extends to the bottom wall 214 and is laterally connected to the side wall 215, and the guide wall 216 extends toward the extension portion of the hot rail 10 through a vertical normal line Z of the bottom end 111 of the inclined guide portion 11, and the guide wall 216 forms an obtuse angle β with the vertical normal line Z. The bottom wall 214, the side walls 215 and the guide wall 216 together enclose a guide cavity 210.

[0070] The extension portion 2162 of the guide wall 216 extends over the vertical normal line Z of the bottom end 111 of the inclined guide portion 11, and the extension portion 2162 and the bottom wall 214 together define the following: Figure 4 The collecting surface P4 shown in the figure is formed so that the vertical normal Z of the bottom end 111 of the inclined guide portion 11 intersects with the collecting surface P4. Figure 4 When dripping downward in the direction indicated by the middle arrow B2, since the extended portion 2162 of the guide wall 216 extends over the vertical normal line Z of the bottom end 111 of the inclined guide portion 11, the oil will pass through the opening 2101 into the guide cavity 210 and drip onto the guide wall 216. Then, the guide wall 216 forms an obtuse angle β with the vertical normal line Z, so that the guide wall 216 can guide the oil along the guide cavity 210. Figure 4 The oil flows to the guide pipe 22 in the direction indicated by the arrow B3, and the oil is discharged from the heat box 100 through the guide pipe 22. It should be noted that the drawings in the specification (for example, Figures 1 to 7 , Figures 10 to 12 ) are perpendicular to Figure 8 A cross-sectional view or a partial cross-sectional view formed by cutting the heat box 100 along the X-axis.

[0071] In some examples, the portion of the guide wall 216 extending out of the side wall 215 and the space between the side wall 215 is filled with a Fig.12 The triangular connecting plate 27 shown in the figure is used to connect the bottom end 111 of the inclined guide portion 11 along the Fig.12The oil stains dripping onto the guide wall 216 in the direction indicated by the middle arrow B22 are intercepted and gathered to prevent the oil stains from escaping from the guide cavity 210 through the guide wall 216 .

[0072] In some examples, reference Figure 6 As shown, one end of the bottom wall 214 close to the hot rail 10 abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11. The opening 2101 and the extended portion 2162 of the guide wall 216 together define as follows: Figure 6 The collecting surface P5 shown in the figure is formed so that the vertical normal Z of the bottom end 111 of the inclined guide portion 11 intersects with the collecting surface P5. The inclined guide portion 11 guides the oil stains along the upper side of the inclined guide portion 11. Figure 6 The oil flows toward the bottom wall 214 in the direction indicated by the middle arrow B1. Since the end of the bottom wall 214 close to the hot rail 10 abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11, some of the oil that does not drip from the bottom end 111 of the inclined guide portion 11 can flow along the inclined guide portion 11. Figure 6 The direction indicated by the middle arrow B21 flows into the guide cavity 210 along the bottom wall 214, and the oil is guided into the guide pipe 22 through the bottom wall 214 and flows along the guide cavity 210. Figure 6 The oil flows in the direction indicated by the middle arrow B3 so as to discharge the oil pollution out of the heat box 100 through the guide pipe 22.

[0073] In some examples, reference Figure 7 As shown, the end of the bottom wall 214 close to the hot rail 10 abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11, and the side wall 215 extends toward the hot rail 10 and abuts against the inclined guide portion 11 or partially extends into the inclined guide portion 11. The opening 2101 and the extended portion 2162 of the guide wall 216 are collectively defined as follows: Figure 7 The collecting surface P6 shown in the figure is formed so that the vertical normal Z of the bottom end 111 of the inclined guide part 11 intersects with the collecting surface P6. The bottom wall 214 and the side wall 215 abut against or partially extend into the inclined guide part 11, so that the oil on the inclined guide part 11 can flow to the bottom wall 214 and the side wall 215, and the oil is guided to the guide cavity 210 through the bottom wall 214 and the side wall 215. At the same time, the oil on the side wall 215 can be intercepted and guided to the guide cavity 210 through the guide wall 216 to prevent the oil from escaping from the side wall 215 and preventing the oil from leaking from the side wall 215 to the inside or outside of the box body 80.

[0074] In some examples, the bottom wall 214 and the side wall 215 extend partially into the inclined guide portion 11 near one end of the hot rail 10 (this state is not shown), so that the joints between the bottom wall 214 and the side wall 215 and the inclined guide portion 11 are tighter, thereby reducing possible gaps, preventing oil from leaking during the flow process, and reducing the risk of contamination of the external working area of ​​the hot box 100.

[0075] In some examples, reference Figure 4 As shown, the guide pipe 22 is arranged on the bottom wall 214, and the inner wall 221 of the pipe opening at one end of the guide pipe 22 connected to the bottom wall 214 smoothly transitions with the inner wall 2161 of the side of the guide wall 216 facing the hot rail 10, so as to at least discharge the oil pollution from the box body 80. The inner wall 221 of the pipe opening and the inner wall 2161 of the side of the guide wall 216 facing the hot rail 10 smoothly transition, so that the bottom end 111 of the inclined guide portion 11 along Figure 4 The oil stains dripping onto the guide wall 216 in the direction indicated by the middle arrow B2 can flow into the guide pipe 22 more smoothly through the inner wall 221 of the pipe opening along the inner wall 2161 of the guide wall 216, and the oil stains are concentratedly discharged through the guide pipe 22 to form a space area 802 between the door plate 801 and the hot rail 10, so as to finally discharge the oil stains from the box body 80, thereby preventing the oil stains from being retained or accumulated in the guide cavity 210 due to the flow resistance of the oil stains, so as to improve the oil stain discharge efficiency.

[0076] In some examples, reference Figure 2 and Figure 8 and Fig. 9 As shown, the hot box 100 also includes: a support plate 60 disposed in the box body 80 and connected to the guide wall 21. The support plate 60 is arranged on the box sheet metal 81. The support plate 60 is provided with a positioning hole 61 for the guide tube 22 to pass through. The guide wall 21 is constructed with a connection portion (not shown) formed outside the guide cavity 210, and the connection portion can be fixed to the support plate 60 by a fixing member such as a bolt and in a detachable connection manner, or fixed to the support plate 60 by a non-detachable connection manner such as welding, so as to provide a stable support structure for the guide device 20 through the support plate 60. The positioning hole 61 can provide accurate position positioning for the guide tube 22, so that the guide device 20 can be inserted into the positioning hole 61 through the guide tube 22 to be installed in the correct position in the hot box 100, so as to reduce installation errors.

[0077] In some examples, reference Figure 2 and Fig. 9As shown, the hot box 100 also includes: a mounting groove 41 formed in the box body 80, and a baffle 50 arranged on the box body 80; the hot rail 10 and the guide device 20 are arranged in the mounting groove 41, and the baffle 50 extends into the mounting groove 41 to clamp the guide wall 21. The baffle 50 clamps two opposing side walls 215 or clamps the peripheral wall 211 (this state is not shown) through physical force to firmly fix the guide device 20 in the mounting groove 41 to prevent the guide device 20 from loosening during the operation of the hot box 100. It should be noted that the transverse cross-sectional shape of the side wall 215 can be an arc, and the transverse cross-sectional shape of the peripheral wall 211 can be a ring, polygon or other structure. The present invention does not limit the transverse cross-sectional shape of the side wall 215 and the peripheral wall 211, as long as the baffle 50 can clamp and fix the guide device 20 in the mounting groove 41. In some examples, the guide device 20 can be fixed to the support plate 60 by a detachable connection method such as bolts, and the guide device 20 can be clamped and fixed in the installation groove 41 by a baffle 50, thereby achieving double fixation of the guide device 20 and greatly improving the installation stability of the guide device 20.

[0078] In some examples, reference Figure 7 As shown, the guide wall 21 is constructed with a positioning portion 218 facing the hot rail 10, and the positioning portion 218 is connected to the hot rail 10. The positioning portion 218 is formed on the side wall 215 or the peripheral wall 211. By connecting the positioning portion 218 to the hot rail 10, the guide device 20 is fixed at a predetermined position to prevent the position of the guide device 20 in the hot box 100 from being offset, so that the guide device 20 can be stably maintained at a predetermined working position, keep guiding the oil and ensure the accuracy of discharge. For example, the positioning portion 218 can be inserted into the plug-in slot (not shown) constructed by the hot rail 10 to achieve keeping the guide device 20 at a predetermined working position.

[0079] In some examples, reference Figure 1 As shown, the heat box 100 also includes: a first suction pipe 70 that runs through the box body 80 and is connected to the guide pipe 22. According to different work requirements, the first suction pipe 70 can be connected to a negative pressure source (not shown) or not connected to a negative pressure source. When the first suction pipe 70 is connected to a negative pressure source, oil and oil smoke can be discharged from the heat box 100 through the guide pipe 22, so that the oil flowing to the guide pipe 22 can be extracted and discharged. When the first suction pipe 70 is not connected to a negative pressure source, the oil flowing to the guide pipe 22 flows into the first suction pipe 70 under the action of gravity to be discharged, and the heat loss in the heat box 100 caused by the oil smoke extraction operation is reduced, and the waste of heat caused thereby.

[0080] In some examples, reference Figure 1As shown, the heat box 100 also includes: a second suction pipe 90 connected to the box body 80 and arranged away from the inclined guide portion 11, and the first suction pipe 70 and the second suction pipe 90 form the same or different suction forces on the box body 80. The first suction pipe 70 and the second suction pipe 90 are connected to the same negative pressure source; or, the first suction pipe 70 and the second suction pipe 90 are connected to different negative pressure sources. At this time, the negative pressure sources respectively connected to the first suction pipe 70 and the second suction pipe 90 form the same or different exhaust negative pressure and suction air volume. When the first suction pipe 70 and the second suction pipe 90 are connected to the same negative pressure source, the negative pressure source only needs to provide a constant and uniform pressure to achieve the same suction force of the first suction pipe 70 and the second suction pipe 90. And the negative pressure source can maintain a stable negative pressure state by providing a constant and uniform pressure, so that the power consumption of the negative pressure source can remain stable, which helps to reduce energy consumption and avoid the increase in energy consumption caused by power fluctuations, so as to achieve higher energy efficiency.

[0081] When the first suction pipe 70 and the second suction pipe 90 are connected to different negative pressure sources, the different negative pressure sources can also provide constant and uniform pressure to the first suction pipe 70 and the second suction pipe 90, so that the suction force of the first suction pipe 70 and the second suction pipe 90 is the same. In addition, the first suction pipe 70 and the second suction pipe 90 can adjust different suction forces according to their respective negative pressure sources. The power consumption of the negative pressure source will depend on the exhaust negative pressure and suction air volume it independently provides and forms. Each negative pressure source needs to provide different exhaust negative pressure and suction air volume according to the needs of the suction pipe to which it is connected (i.e., the first suction pipe 70 and the second suction pipe 90).

[0082] In some examples, the longitudinal cross-section of the flow guide cavity 210 may be formed as follows: Figure 2 The bell-mouth structure shown in the figure helps to gather the oil smoke and quickly guide it to the guide pipe 22, thereby improving the suction effect of the oil smoke.

[0083] In some examples, the suction force formed by the second suction pipe 90 is greater than the suction force formed by the first suction pipe 70. Fig. 9As shown, a space area 802 is formed between the door panel 801 and the hot rail 10, and the first suction pipe 70 and the second suction pipe 90 are connected to different negative pressure sources. The suction force of the first suction pipe 70 and the second suction pipe 90 on the space area 802 is flexibly controlled by adjusting the pressure of the negative pressure source, so that the suction force formed by the second suction pipe 90 on the space area 802 is greater than the suction force formed by the first suction pipe 70 on the space area 802. The suction pipe opening (not shown) of the second suction pipe 90 extends into the space area 802 at the top of the box 80. According to the high temperature environment in the hot box 100, the high-temperature oil smoke will rise to the space area 802 at the top of the box 80, so that the second suction pipe 90 with a stronger suction force can discharge the oil smoke in the hot box 100 more effectively. The first suction pipe 70 with a smaller suction force, without forcibly sucking the oil fume, allows the oil dirt that naturally flows to the guide device 20 to flow into the first suction pipe 70 through the guide pipe 22 and be discharged, so as to reduce the heat loss in the hot box 100 caused by the oil fume extraction operation. The first suction pipe 70 provides a lower suction force than that formed by the second suction pipe 90, or the first suction pipe 70 is not connected to the negative pressure source, and the second suction pipe 90 provides a stronger suction force, so that the power output of the two negative pressure sources connected to the first suction pipe 70 and the second suction pipe 90 respectively matches the required suction force, avoiding excessive suction of hot air in the space area 802 and energy waste, thereby reducing the heat loss of the hot box 100 and the false twist texturing machine 1000 including the hot box 100, and reducing the energy consumption of the hot box 100 and the false twist texturing machine 1000.

[0084] Based on the same inventive concept, this embodiment also discloses a false twist texturing machine 1000. Fig.13 As shown, the false twist texturing machine 1000 includes: a yarn conveying device 200, a cooling device 300, a false twist device 400, and a heat box 100 disposed between the yarn conveying device 200 and the cooling device 300. The heat box 100, the cooling device 300, and the false twist device 400 are located behind the yarn conveying device 200. Since the yarn conveying device 200, the cooling device 400, and the false twist device 300 are prior art, they will not be described in detail here. The false twist texturing machine 1000 equipped with the heat box 100 can reduce heat loss and energy waste in actual applications, which is helpful to achieve energy saving and consumption reduction.

[0085] The specific technical solution of the heat box 100 included in the false twist texturing machine 1000 in this embodiment refers to any one of the aforementioned embodiments or any combination of several embodiments, which will not be repeated here.

[0086] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

[0087] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0088] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hot box, characterized in that: include: A box body, a plurality of heat rails arranged in the box body, and a flow guide device arranged at the bottom of the heat rails; The bottom end of the hot rail close to the guide device is configured with an inclined guide portion extending toward the guide device; The flow guiding device comprises: a flow guiding wall and a flow guiding pipe, wherein the flow guiding wall forms a flow guiding cavity with an opening and being tilted downward as a whole relative to a horizontal plane, and the flow guiding pipe is connected to the flow guiding cavity; The opening is formed at one end of the guide cavity close to the inclined guide portion, and a vertical normal line of the bottom end of the inclined guide portion intersects with a collecting surface defined by the opening.

2. The hot box according to claim 1, characterized in that The guide wall comprises: The peripheral wall of the guide cavity is enclosed and formed, and the peripheral wall is constructed with a guide portion that partially extends over the vertical normal line of the bottom end of the inclined guide portion.

3. The hot box according to claim 1, characterized in that The guide wall comprises: A base, formed on the base and enclosing together with the base to form a peripheral wall of the diversion cavity; The peripheral wall is configured with a guide portion partially extending beyond a vertical normal line of a bottom end of the inclined guide portion.

4. The hot box according to claim 1, characterized in that The guide wall comprises: A bottom wall inclined downward relative to a horizontal plane, two oppositely disposed side walls extending along a length direction of the bottom wall, and a guide wall inclined downward relative to the horizontal plane; The guide wall extends to the bottom wall and is laterally connected to the side wall. The guide wall extends toward the hot rail and partially extends over a vertical normal line of a bottom end of the inclined guide portion. The guide wall forms an obtuse angle with the vertical normal line. The bottom wall, the side wall and the guide wall together enclose the guide cavity.

5. The heat box according to claim 4, characterized in that One end of the bottom wall close to the hot rail abuts against the inclined guiding portion or partially extends into the inclined guiding portion.

6. The heat box according to claim 4, characterized in that One end of the bottom wall close to the hot rail abuts against the inclined guide portion or partially extends into the inclined guide portion, and the side wall extends toward the hot rail and abuts against the inclined guide portion or partially extends into the inclined guide portion.

7. The heat box according to claim 2 or 3, characterized in that: One end of the peripheral wall close to the hot rail is configured to form a guide portion that abuts against the inclined guide portion or partially extends into the inclined guide portion.

8. The hot box according to claim 2 or 3, characterized in that: One end of the guide cavity away from the opening is communicated with the guide pipe, and the guide pipe is arranged to be inclined downward relative to a horizontal plane. The inner wall of the pipe opening at one end of the guide pipe connected to the guide wall smoothly transitions with the peripheral wall toward an inner wall of one side of the hot rail, so as to at least discharge oil and dirt from the box.

9. The heat box according to claim 4, characterized in that The guide pipe is arranged on the bottom wall, and the inner wall of the pipe opening at one end of the guide pipe connected to the bottom wall smoothly transitions to the inner wall of one side of the guide wall facing the hot rail, so as to at least discharge oil and dirt from the box body.

10. The hot box according to any one of claims 1 to 4, characterized in that The heat box also includes: A support plate is arranged inside the box body and connected to the guide wall.

11. The hot box according to any one of claims 1 to 4, characterized in that The heat box also includes: A mounting groove formed in the box body, and a baffle plate disposed on the box body; The hot rail and the guide device are arranged in the installation slot, and the baffle extends into the installation slot to clamp the guide wall.

12. The hot box according to claim 11, characterized in that The guide wall is configured with a positioning portion facing the hot rail, and the positioning portion and the hot rail are connected to each other.

13. The hot box according to claim 1, characterized in that The heat box further comprises: a first suction pipe penetrating through the box body and communicating with the flow guide pipe.

14. The hot box according to claim 13, characterized in that The heat box further comprises: a second suction pipe connected to the box body and arranged away from the inclined guide portion, wherein the suction force formed by the second suction pipe is greater than the suction force formed by the first suction pipe.

15. The hot box according to claim 1, characterized in that The hot rail forms a channel for the chemical fiber to pass through, and a channel wall formed on both sides of the channel, and the channel wall and the end of the channel extend to the inclined guide portion; The width of the guide wall in the transverse direction is greater than the transverse width between the groove walls.

16. A false twist texturing machine, characterized in that: include: A yarn delivery device, a cooling device, a false twisting device, and a heat box as claimed in any one of claims 1 to 15 arranged between the yarn delivery device and the cooling device.

Images