Water-steam dual-purpose fiber hot bath stretching tank structure

Abstract

A water-steam dual-purpose fiber hot bath stretching tank structure belongs to the technical field of short fiber stretching equipment. It includes a tank body, a feeding fiber bundle pressure guide roller is arranged in the tank body cavity, a lead-out fiber bundle pressure guide roller is arranged at the right end of the tank body cavity, a fiber bundle feeding hole is arranged on the left end wall of the tank body, a fiber bundle lead-out hole is arranged on the right end wall, a hot water introduction interface is connected on the bottom wall of the tank body, and a sewage lead-out interface is connected at the right end of the bottom wall of the tank body; a tank body cavity steam heating pipe is arranged on the bottom wall of the tank body, the first end of the tank body cavity steam heating pipe is connected to the steam supply source pipeline, and the second end is connected to the condensate lead-out pipeline; a tank body cover is covered with the open part of the tank body on the side of the tank body facing upward; an upper steam injection mechanism is arranged in the tank body cover cavity; a lower steam injection mechanism is fixed on the bottom wall of the tank body; a tank body cover cavity steam heating pipe is arranged on the top wall of the tank body cover; and a tank body cover opening and closing mechanism is arranged at the upper part of the right end of the rear side of the tank body. It can meet the requirements of different fibers for selecting heating medium during stretching; the stretching is sufficient.

Description

Technical Field

[0001] The invention belongs to the technical field of short fiber stretching equipment, and in particular relates to a water-steam dual-purpose fiber hot bath stretching tank structure. Background Art

[0002] Fiber stretching can improve the axial orientation of the fiber, reduce the molecular distance, increase the macromolecular force, make the fiber structure compact and increase the fiber breaking strength, etc. There are usually three ways to stretch the fiber: one is dry stretching, which is also called air bath stretching; the second is steam bath stretching (saturated steam or superheated steam); the third is wet stretching, including liquid bath method and spray method.

[0003] Stretching fibers in a water bath is a commonly used stretching method in the industry, and there is no shortage of technical information about water baths in the public Chinese patent documents, such as CN105780160B (a water bath on a staple fiber production line), CN106367825B (a drafting water bath on a staple fiber stretching production line), CN202376855U (water bath), CN103682469A (a water bath), CN205329226U (water bath), CN208250480U (a polylactic acid staple fiber stretching device) and CN209397304U (a traction water bath on a staple fiber stretching production line) and CN110158168A (melt-spun staple fiber stretching device), etc.; technical information on fiber stretching using steam can also be found in the public Chinese patent documents, such as the "polyacrylonitrile fiber saturated steam pressurized drafting device" recommended by CN2576729Y.

[0004] As is known in the industry, for the drawing of fiber bundles with relatively low glass transition temperatures, such as polylactic acid fiber bundles, it is usually more appropriate to heat and stretch them in a hot water bath, while for relatively high glass transition temperatures, such as special or high-strength polyphenylene sulfide fibers, it is more appropriate to use steam heating, i.e., heat and stretch them in a steam bath. The former can use a water bath tank not limited to the one disclosed by the above-mentioned patent, while the latter can use a device such as the one recommended by the above-mentioned CN2576729Y.

[0005] From the above description, it can be seen that: since the water bath stretching device and the steam heating stretching device are two different structural systems, the corresponding aforementioned devices need to be used for different fibers, such as the aforementioned polylactic acid (PLA) fiber and polyphenylene sulfide (PPS) fiber, so that the fiber can be fully stretched. However, as a fiber manufacturer, if a water bath heating tank and a steam heating device, i.e., a steam heating tank, are respectively equipped to cope with the stretching of different fibers, on the one hand, it will increase the equipment investment cost of the fiber manufacturer and increase the daily maintenance workload of the equipment, and on the other hand, it will cause a waste of resources. Undoubtedly, if the water bath fiber heating stretching tank and the steam fiber heating stretching tank can be organically combined into one, then the aforementioned technical problems can be solved, but there is no enlightenment that helps solve the aforementioned technical problems in the Chinese and foreign patents and non-patent literature disclosed so far. The technical solution to be introduced below is produced in this context. Summary of the invention

[0006] The task of the present invention is to provide a water-bath fiber heating and stretching tank structure that helps to organically combine the water-bath fiber heating and stretching tank with the steam fiber heating and stretching tank to meet the requirements of the on-demand selection of heating medium for fibers with different glass transition temperatures during stretching.

[0007] The task of the present invention is accomplished in this way: a water-steam dual-purpose fiber hot bath stretching tank structure includes a tank body, a feeding yarn guide roller is arranged in the tank body cavity and at the left end of the tank body cavity, and a leading yarn guide roller is arranged at the right end of the tank body cavity, and a yarn feeding hole is opened on the left end wall of the tank body, and a yarn leading hole is opened on the right end wall of the tank body, a hot water introduction interface for introducing hot water into the tank body cavity is connected to the bottom wall of the tank body and at the left end of the bottom wall of the tank body, and a hot water introduction interface which is in communication with the tank body cavity and is used to introduce hot water into the tank body cavity is connected to the right end of the bottom wall of the tank body. a sewage outlet interface for leading sewage out of the tank cavity; a tank cavity steam heating pipe, which is laid on the tank bottom wall in the tank cavity, and a first end portion I of the tank cavity steam heating pipe extends from the left end of the tank bottom wall to the outside of the tank cavity and is connected to the steam supply source pipeline, and a second end portion II of the tank cavity steam heating pipe is configured as a condensate outlet end and also extends through the tank bottom wall to the outside of the tank cavity and is connected to the condensate outlet pipeline; a tank cover, which is matched with the open part of the tank on the side of the tank facing upward, and is provided on the tank. A trough cover spray pipe is arranged at the left end of the body cover and at a position corresponding to the left side of the feeding tow pressure guide roller, the lower end of the trough cover spray pipe extends into the trough body cavity, and the upper end is connected to the spray pipe water supply device pipeline; an upper steam injection mechanism for injecting steam toward the trough body cavity, the upper steam injection mechanism is arranged in the trough body cover cavity of the trough body cover and is connected to the steam supply source pipeline when in use; a lower steam injection mechanism for injecting steam upward, the lower steam injection mechanism is fixed on the bottom wall of the trough body in a state of being vacant above the bottom wall of the trough body in an area corresponding to the steam heating pipe in the trough body cavity and And it is also connected to the steam supply source pipeline when in use; a tank cover cavity steam heating pipe, which is laid on the tank cover top wall of the tank cover in the tank cover cavity, and the tank cover cavity steam heating pipe first end portion Ⅰ extends out of the tank cover cavity and is connected to the steam supply source pipeline, and the tank cover cavity steam heating pipe second end portion Ⅱ is constructed as a low-temperature steam lead-out end and also extends out of the tank cover cavity and is connected to the steam recovery pipe pipeline; a tank cover opening and closing mechanism, which is arranged on the upper part of the rear right end of the tank and is connected to the tank cover.

[0008] In a specific embodiment of the present invention, a pair of trough body supporting legs are respectively provided at the bottom of the left and right ends of the trough body, and the trough body is in a state of being suspended above the ground through the trough body supporting legs; a feeding filament bundle pressure guide roller shaft head is respectively formed at the front end and the rear end of the feeding filament bundle pressure guide roller, and the feeding filament bundle pressure guide roller shaft head is rotatably supported on the feeding filament bundle pressure guide roller shaft head supporting bearing seat, and the feeding filament bundle pressure guide roller shaft head supporting bearing seat is fixed to the trough body; a lead-out filament bundle pressure guide roller shaft head is respectively formed at the front end and the rear end of the lead-out filament bundle pressure guide roller, and the lead-out filament bundle pressure guide roller shaft head supporting bearing seat is fixed to the trough body; the filament bundle feeding hole is located in the middle of the left end wall of the trough body, and the filament bundle lead-out hole is located in the middle of the right end wall of the trough body.

[0009] In another specific embodiment of the present invention, a first end solenoid valve of the tank body cavity steam heating pipe is connected to the first end portion I of the tank body cavity steam heating pipe, and a second end steam outlet valve of the tank body cavity steam heating pipe and a second end steam trap of the tank body cavity steam heating pipe are sequentially arranged from top to bottom on the second end portion II of the tank body cavity steam heating pipe; a sewage outlet interface opening and closing valve is arranged on the sewage outlet interface.

[0010] In another specific embodiment of the present invention, the upper steam injection mechanism includes an upper steam injection box, an upper steam injection box steam introduction pipe, an upper steam injection box left fixed seat and an upper steam injection box right fixed seat, the upper steam injection box has an upper steam injection box cavity, the left end of the upper steam injection box is fixed to the upper steam injection box left fixed seat, and the right end of the upper steam injection box is fixed to the upper steam injection box right fixed seat, and at the bottom of the upper steam injection box, along the length direction of the upper steam injection box from left to right, there are spaced apart for communicating with the upper steam injection box cavity The steam in the upper steam injection box cavity is injected toward the tank body cavity in a plurality of rows, and each row has a plurality of upper steam injection box steam injection holes. One end of the upper steam injection box steam inlet pipe is matched with the top of the upper steam injection box and communicates with the upper steam injection box cavity, and the other end of the upper steam injection box steam inlet pipe is connected to the steam supply source pipeline when in use, and an opening and closing control valve is arranged on the pipeline of the upper steam injection box steam inlet pipe. The left fixing seat of the upper steam injection box is fixed to the left end of the tank body cover, and the right fixing seat of the upper steam injection box is fixed to the right end of the tank body cover.

[0011] In yet another specific embodiment of the present invention, the positions of the steam spray holes of the upper steam spray boxes in two adjacent left and right rows are staggered with each other.

[0012] In another specific embodiment of the present invention, the lower steam injection mechanism includes a lower steam injection box, a lower steam injection box steam introduction pipe, a lower steam injection box left fixed seat, a lower steam injection box right fixed seat and a lower steam injection box low-temperature steam outlet pipe, the lower steam injection box has a lower steam injection box cavity, the left end of the lower steam injection box is fixed to the lower steam injection box left fixed seat, and the right end of the lower steam injection box is fixed to the lower steam injection box right fixed seat, and the top of the lower steam injection box is provided with a plurality of rows of steam injection holes in communication with the lower steam injection box cavity from left to right along the length direction of the lower steam injection box, and each row has a plurality of lower steam injection box steam injection holes, and the steam introduction pipe of the lower steam injection box is provided with a plurality of steam injection holes in each row ... One end is matched with the bottom of the lower steam injection box and communicated with the lower steam injection box cavity, and the other end of the steam inlet pipe of the lower steam injection box is connected to the steam supply source pipeline in the use state, and a pressure regulating valve and a steam inlet opening and closing control valve are arranged in sequence from top to bottom on the steam inlet pipe of the lower steam injection box, the left fixed seat of the lower steam injection box is fixed to the left end of the bottom wall of the tank body, the right fixed seat of the lower steam injection box is fixed to the right end of the bottom wall of the tank body, the low-temperature steam lead-out pipe of the lower steam injection box is matched with the bottom of the lower steam injection box and communicated with the lower steam injection box cavity, and a lower steam injection box low-temperature steam outlet valve and a lower steam injection box low-temperature steam lead-out pipe steam trap are arranged in sequence from top to bottom on the pipeline of the low-temperature steam lead-out pipe of the lower steam injection box.

[0013] In a further specific embodiment of the present invention, the positions of the steam spray holes of the lower steam spray boxes in each of two adjacent left and right rows are staggered with each other.

[0014] In a further specific embodiment of the present invention, a trough body platform is formed at the upper rear side in the longitudinal direction of the trough body, the trough body cover opening and closing mechanism is arranged at the upper right end of the trough body platform, and a cover carrying mechanism is arranged on the side of the trough body cover facing away from the trough body cover cavity, and the trough body cover opening and closing mechanism is connected to the cover carrying mechanism.

[0015] In yet another specific embodiment of the present invention, the trough cover opening and closing mechanism includes a motor and a reduction gearbox, the motor and the reduction gearbox are in transmission cooperation and the reduction gearbox and the motor are fixed to the upper right end of the trough platform, the reduction gearbox output shaft of the reduction gearbox faces left and is connected to the cover lifting mechanism arranged on the trough cover through the reduction gearbox output shaft coupling; wherein, a left shaft seat of a flip shaft is fixed to the upper left end of the trough platform, and a right shaft seat of a flip shaft is fixed to the right end of the trough platform and at a position corresponding to the left end of the reduction gearbox output shaft coupling; the motor is a motor with forward and reverse rotation functions.

[0016] In yet another specific embodiment of the present invention, the cover carrying mechanism includes a left flip arm, a right flip arm and a flip shaft, the left flip arm is located at the left end of the trough cover, and a left flip arm hanging foot groove is provided at the front end of the left flip arm, the left flip arm hanging foot groove cooperates with the left hanging foot of the trough cover and is limited by a left pin which is plugged in and out of the left hanging foot of the trough cover, the middle part of the left flip arm is hinged to the left flip arm hinge shaft seat through the left flip arm hinge shaft, and the left flip arm hinge shaft seat is fixed to the trough cover at a position corresponding to the rear side of the left hanging foot of the trough cover, the rear end of the left flip arm protrudes out of the rear side surface of the trough cover, the right flip arm is located at the right end of the trough cover, and a right flip arm hanging foot groove is provided at the front end of the right flip arm, the right flip arm hanging foot groove cooperates with the right hanging foot of the trough cover and is plugged in and out The right latch placed on the right hanging foot of the trough body cover is limited, the middle part of the right flip arm is hinged on the right flip arm hinge shaft seat through the right flip arm hinge shaft, and the right flip arm hinge shaft seat is fixed to the trough body cover at a position corresponding to the rear side of the right hanging foot of the trough body cover, and the rear end of the right flip arm protrudes out of the rear side surface of the trough body cover, and the left end of the flip shaft passes through the left side of the rear end of the left flip arm and is rotatably supported on the left shaft seat of the flip shaft and is locked with the left flip arm at a position corresponding to the rear end of the left flip arm by the left locking screw of the flip shaft, and the right end of the flip shaft passes through the right side of the rear end of the right flip arm and is locked with the right flip arm at a position corresponding to the rear end of the right flip arm by the right locking screw of the flip shaft, and the right end of the flip shaft is also rotatably supported on the right shaft seat of the flip shaft, and the output shaft coupling of the reduction gear box is connected to the right end of the flip shaft.

[0017] The technical effect of the technical solution provided by the present invention is that: when it is necessary to heat and stretch fibers with a low glass transition temperature, the upper steam injection mechanism, the lower steam injection mechanism and the trough cover cavity steam heating pipe are stopped, and hot water is introduced into the trough cavity to achieve hot water bath heating and stretching of the fibers with a low glass transition temperature; when it is necessary to heat and stretch fibers with a high glass transition temperature, the upper steam injection mechanism, the lower steam injection mechanism and the trough cover cavity steam heating pipe are activated, and the steam introduced into the trough cavity achieves steam heating and stretching of the fibers with a high glass transition temperature, thereby satisfying the fiber manufacturer's requirement for selecting a heating medium when stretching fibers with different glass transition temperatures; since a trough cover spray pipe is provided, the trough cover spray pipe moistens the filament bundle before heating, which helps to speed up the heating speed during the heating process and improve the uniformity of heating, so that the stretching is more sufficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of an embodiment of the present invention.

[0019] Figure 2 for Figure 1 Schematic diagram of . DETAILED DESCRIPTION

[0020] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description in the form of embodiments below. However, the description of the embodiments is not a limitation of the present invention. Any equivalent changes made based on the concept of the present invention that are merely formal and not substantial should be regarded as within the scope of the technical solution of the present invention.

[0021] In the following description, all concepts related to directionality or orientation such as up, down, left, right, front and back are based on the position state of the drawings, and therefore cannot be understood as a special limitation on the technical solution provided by the present invention.

[0022] See also Figure 1 and Figure 2, showing a tank body 1, in which a feeding strand guide roller 12 is arranged in a tank body cavity 11 and at the left end of the tank body cavity 11, and a leading strand guide roller 13 is arranged at the right end of the tank body cavity 11, and a strand feeding hole 14a is opened on the left end wall of the tank body 1, and a strand leading hole 14b is opened on the right end wall of the tank body 1, a hot water introduction interface 14c for introducing hot water into the tank body cavity 11 is connected on the tank body bottom wall of the tank body 1 and at the left end of the tank body bottom wall, and a sewage outlet interface 14d for leading sewage out of the tank body cavity 11 is connected at the right end of the tank body bottom wall; showing a tank body cavity steam heating pipe 2, which The trough body cavity steam heating pipe 2 is laid on the bottom wall of the trough body in a plurality of S-shaped states in the aforementioned trough body cavity 11, and the first end portion Ⅰ21 of the trough body cavity steam heating pipe 2 extends from the left end of the trough body bottom wall to the outside of the trough body cavity 11 and is connected to the steam supply source pipeline, and the second end portion Ⅱ22 of the trough body cavity steam heating pipe 2 is constituted as a condensate outlet and also extends downward through the trough body bottom wall to the outside of the trough body cavity 11 and is connected to the condensate outlet pipeline; a trough body cover 3 is shown, which is matched with the open part of the trough body on the side of the trough body 1 facing upward, and a trough body cover spray nozzle for introducing softened water, i.e., soft water, is arranged at the left end of the trough body cover 3 and at a position corresponding to the left side of the aforementioned feeding tow guide roller 12. The shower pipe 31 (also called "softened water shower pipe"), the lower end of which extends into the tank cavity 11, and the upper end is connected to the shower pipe water supply device pipeline for providing softened water; an upper steam injection mechanism 4 is shown for injecting steam toward the aforementioned tank cavity 11, that is, downward, and the upper steam injection mechanism 4 is arranged in the tank cover cavity 32 of the tank cover 3 and is connected to a steam supply source such as a steam boiler or a similar device (hereinafter the same) by pipeline when in use; a lower steam injection mechanism 5 is shown for injecting steam upward, and the lower steam injection mechanism 5 is fixed to the bottom wall of the tank in the area corresponding to the aforementioned tank cavity steam heating pipe 2 in a state of being vacant on the bottom wall of the aforementioned tank and is also connected to the steam supply source when in use. Pipeline connection; a trough cover cavity steam heating pipe 6 is shown, which is laid in an S-shaped state on the trough cover top wall of the trough cover 3 in the aforementioned trough cover cavity 32, and the trough cover cavity steam heating pipe first end portion Ⅰ61 of the trough cover cavity steam heating pipe 6 extends upward to the outside of the trough cover cavity 32 and is connected to the steam supply source pipeline and an electromagnetic control valve is arranged on the pipeline connected to the steam supply source pipeline, and the trough cover cavity steam heating pipe second end portion Ⅱ62 is constructed as a low-temperature steam lead-out end and also extends upward to the outside of the trough cover cavity 32 and is connected to the steam recovery pipe pipeline; a trough cover opening and closing mechanism 7 is shown, which is arranged on the upper part of the rear right end of the aforementioned trough body 1 and is connected to the aforementioned trough cover 3.

[0023] Depend on Figure 1 As shown, a pair of trough body support legs 15 are respectively arranged at the left and right bottom ends of the aforementioned trough body 1, and the trough body 1 is in a state of being suspended from the ground through the trough body support legs 15; a feeding filament guide roller shaft head 121 is respectively formed at the front end and the rear end of the aforementioned feeding filament guide roller 12, and the feeding filament guide roller shaft head 121 is rotatably supported on the feeding filament guide roller shaft head support bearing seat 1211, and the feeding filament guide roller shaft head support bearing seat 1211 and the trough body 1 Fixed; the front end and the rear end of the aforementioned lead-out wire bundle pressure guide roller 13 each constitute a lead-out wire bundle pressure guide roller shaft head 131, and the lead-out wire bundle pressure guide roller shaft head 131 is rotatably supported on the lead-out wire bundle pressure guide roller shaft head supporting bearing seat 1311, and the lead-out wire bundle pressure guide roller shaft head supporting bearing seat 1311 is fixed to the trough body 1; the aforementioned wire bundle feeding hole 14a is located in the middle of the left end wall of the trough body 1, and the aforementioned wire bundle lead-out hole 14b is located in the middle of the right end wall of the trough body 1.

[0024] See you next time Figure 1 and Figure 2 A first end solenoid valve 211 of the tank body cavity steam heating pipe is arranged on the first end portion Ⅰ21 of the tank body cavity steam heating pipe, and a second end steam outlet valve 221 of the tank body cavity steam heating pipe and a second end steam trap 222 of the tank body cavity steam heating pipe are arranged in sequence from top to bottom on the second end portion Ⅱ22 of the tank body cavity steam heating pipe; a sewage outlet interface opening and closing valve 14e is arranged on the aforementioned sewage outlet interface 14d.

[0025] The preferred but not absolutely limited structure of the above-mentioned upper steam injection mechanism 4 is as follows: it includes an upper steam injection box 41, an upper steam injection box steam introduction pipe 42, an upper steam injection box left fixing seat 43 and an upper steam injection box right fixing seat 44, the upper steam injection box 41 has an upper steam injection box cavity 411, the left end of the upper steam injection box 41 is fixed to the upper steam injection box left fixing seat 43 by the upper steam injection box left fixing screw 413, and the right end of the upper steam injection box 41 is fixed to the upper steam injection box right fixing seat 44 by the upper steam injection box right fixing screw 414, and the bottom of the upper steam injection box 41 is provided with a spaced-apart opening from left to right along the length direction of the upper steam injection box 41 There are a plurality of rows of upper steam injection box steam spray holes 412 in each row, which are communicated with the upper steam injection box cavity 411 and are used to spray the steam in the upper steam injection box cavity 411 toward the aforementioned tank body cavity 11. One end of the upper steam injection box steam inlet pipe 42 is matched with the top of the upper steam injection box 41 and communicated with the upper steam injection box cavity 411, and the other end of the upper steam injection box steam inlet pipe 42 is connected to the steam supply source pipeline in the use state, and an opening and closing control valve is arranged on the pipeline of the upper steam injection box steam inlet pipe 42. The left fixing seat 43 of the upper steam injection box is fixed to the left end of the aforementioned tank body cover 3, and the right fixing seat 44 of the upper steam injection box is fixed to the right end of the tank body cover 3.

[0026] The positions of the steam spray holes 412 of the upper steam spray boxes on the two adjacent rows on the left and right are staggered to achieve a uniform effect of the sprayed steam.

[0027] See you next time Figure 1 and Figure 2The structure of the aforementioned lower steam injection mechanism 5 is preferably but not absolutely limited to the following: it includes a lower steam injection box 51, a lower steam injection box steam introduction pipe 52, a lower steam injection box left fixing seat 53, a lower steam injection box right fixing seat 54 and a lower steam injection box low-temperature steam outlet pipe 55, the lower steam injection box 51 has a lower steam injection box cavity 511, the left end of the lower steam injection box 51 is fixed to the lower steam injection box left fixing seat 53 by a lower steam injection box left fixing screw 513, and the right end of the lower steam injection box 51 is fixed to the lower steam injection box right fixing seat 54 by a lower steam injection box right fixing screw 514, and at the top of the lower steam injection box 51, a plurality of rows of steam injection holes 51 are arranged at intervals from left to right along the length direction of the lower steam injection box 51, which are communicated with the lower steam injection box cavity 511 and are used to spray the steam in the lower steam injection box cavity 511 upward, and each row has a plurality of lower steam injection box steam injection holes 51 2. One end of the steam inlet pipe 52 of the lower steam injection box is matched with the bottom of the lower steam injection box 51 and communicates with the lower steam injection box cavity 511, and the other end of the steam inlet pipe 52 of the lower steam injection box is connected to the steam supply source pipeline in the use state, and a pressure regulating valve 521 and a steam inlet opening and closing control valve 522 are arranged in sequence from top to bottom on the steam inlet pipe 52 of the lower steam injection box. The left fixed seat 53 of the lower steam injection box is fixed to the left end of the bottom wall of the tank body 1, and the right fixed seat 54 of the lower steam injection box is fixed to the right end of the bottom wall of the tank body 1. The low-temperature steam outlet pipe 55 of the lower steam injection box is matched with the bottom of the lower steam injection box 51 and communicates with the lower steam injection box cavity 511. A lower steam injection box low-temperature steam outlet valve 551 and a lower steam injection box low-temperature steam outlet pipe steam trap 552 are arranged in sequence from top to bottom on the low-temperature steam outlet pipe 55 of the lower steam injection box. Figure 1 and Figure 2 In FIG. 5 , a support base 515 for supporting the lower steam injection box 51 is shown.

[0028] Preferably, in order to prevent the lower steam injection box 51 from deforming, support columns 5111 may be provided in the lower steam injection box cavity 511 at intervals. The same is true for the upper steam injection box 41 described above, and will not be described in detail.

[0029] In this embodiment, the positions of the steam spray holes 512 of the lower steam spray boxes in two adjacent rows on the left and right are staggered to reflect the uniformity of the sprayed steam.

[0030] Depend on Figure 1 As shown, a trough body platform 16 is formed at the upper rear side in the length direction of the aforementioned trough body 1, the aforementioned trough body cover opening and closing mechanism 7 is arranged at the upper right end of the trough body platform 16, and a cover carrying mechanism 33 is arranged on the side of the aforementioned trough body cover 3 facing away from the aforementioned trough body cover cavity 32, and the trough body cover opening and closing mechanism 7 is connected to the cover carrying mechanism 33.

[0031] See you next time Figure 1 and Figure 2 The aforementioned trough cover opening and closing mechanism 7 includes a motor 71 and a reduction gear box 72, the motor 71 and the reduction gear box 72 are in transmission cooperation and are fixed to the upper right end of the aforementioned trough platform 16 together with the reduction gear box 72, the reduction gear box output shaft of the reduction gear box 72 faces left and is connected to the aforementioned cover lifting mechanism 33 arranged on the trough cover 3 through the reduction gear box output shaft coupling 721; wherein, a flip shaft left shaft seat 17a is fixed to the upper left end of the aforementioned trough platform 16, and a flip shaft right shaft seat 17b is fixed to the right end of the trough platform 16 and at a position corresponding to the left end of the aforementioned reduction gear box output shaft coupling 721, that is, the left side; the aforementioned motor 71 is a motor with forward and reverse rotation functions.

[0032] The aforementioned cover-lifting mechanism 33 includes a left flip arm 331, a right flip arm 332 and a flip shaft 333. The left flip arm 331 is located at the left end of the aforementioned trough cover 3. A left flip arm hanging foot groove 3311 is provided at the front end of the left flip arm 331. The left flip arm hanging foot groove 3311 is matched with the left hanging foot 33111 of the trough cover and is limited by a left latch 33112 which is inserted and pulled out of the left hanging foot 33111 of the trough cover. The middle part of the left flip arm 331 is hinged to the left flip arm through the left flip arm hinge shaft 3312. The left flip arm is hinged on the shaft seat 33121, and the left flip arm hinge shaft seat 33121 is fixed to the tank cover 3 at a position corresponding to the rear side of the left hanging foot 33111 of the tank cover, the rear end of the left flip arm 331 protrudes out of the rear side surface (also called "rear side edge") of the tank cover 3, the right flip arm 332 is located at the right end of the tank cover 3, and a right flip arm hanging foot groove 3321 is provided at the front end of the right flip arm 332, the right flip arm hanging foot groove 3321 cooperates with the right hanging foot 33211 of the tank cover and is arranged on the right side of the tank cover 3 by plugging and unplugging. The right latch 33212 on the right hanging foot 33211 of the tank cover is defined, and the middle part of the right flip arm 332 is hinged on the right flip arm hinge shaft seat 33221 through the right flip arm hinge shaft 3322, and the right flip arm hinge shaft seat 33221 is fixed to the tank cover 3 at a position corresponding to the rear side of the right hanging foot 33211 of the tank cover, and the rear end of the right flip arm 332 protrudes from the rear side of the tank cover 3, and the left end of the flip shaft 333 passes through the rear end of the left flip arm 331 and is rotatably supported on the aforementioned flip shaft left shaft seat 17a. The flip shaft 333 is locked with the left flip arm 331 at a position corresponding to the rear end of the left flip arm 331 by the left locking screw 3331 of the flip shaft, and the right end of the flip shaft 333 passes through the right side of the rear end of the right flip arm 332 and is locked with the right flip arm 332 at a position corresponding to the rear end of the right flip arm 332 by the right locking screw 3332 of the flip shaft, the right end of the flip shaft 333 is also rotatably supported on the aforementioned flip shaft right shaft seat 17b, and the aforementioned reducer output shaft coupling 721 is connected to the right end of the flip shaft 333.

[0033] Depend on Figure 2 As shown, in Figure 2 The left drawing guide roller 8a and the right drawing guide roller 8b are shown in the figure. When the fiber bundle 9, such as the fiber with a relatively low glass transition temperature, such as the polylactic acid fiber bundle, is being drawn, the polylactic acid fiber bundle sequentially passes through the left drawing guide roller 8a, the bundle feeding hole 14a and the lower part of the feeding bundle pressure roller 12 into the tank body cavity 11 of the tank body 1. Since the polylactic acid fiber bundle with a relatively low glass transition temperature is drawn, the upper and lower steam injection mechanisms 4, 5 and the tank body cover cavity steam heating pipe 6 are in a non-use state. The hot water introduction interface 14c provides hot water to the tank body cavity 11 through the water inlet 18 provided on the bottom wall of the tank body when the valve on its pipeline is opened. The water level of the hot water in the tank body cavity 11 is lower than the aforementioned bundle feeding hole 14a and the bundle outlet hole 14b corresponding to the position of the bundle feeding hole 14a through the horizontal plane 111. At the same time, the tank body cavity steam heating pipe 2 is in a working state, so that the tank body The water bath temperature in the cavity 11 is maintained at the level required by the process. When the tank cavity steam heating pipe 2 is in the heating state, steam is introduced from the first end Ⅰ21 of the tank cavity steam heating pipe. At this time, the first end electromagnetic valve Ⅰ211 of the tank cavity steam heating pipe 2 on the first end Ⅰ21 of the tank cavity steam heating pipe is in an open state. At the same time, the second end steam outlet valve Ⅱ221 of the tank cavity steam heating pipe on the second end Ⅱ22 of the tank cavity steam heating pipe is in an open state and the second end steam trap 222 of the tank cavity steam heating pipe is in a working state. The aforementioned polylactic acid fiber tow passes through the water bath of the tank cavity 11 and sequentially passes through the tow guide roller 13, the tow outlet hole 14b and the right stretching guide roller 8b, and then enters the subsequent process.

[0034] When the fiber bundle 9 with relatively high glass transition temperature such as polyphenylene sulfide fiber bundle is stretched, steam heating stretching is enabled, specifically: the upper steam injection mechanism 4, the lower steam injection mechanism 5 and the tank cover steam heating pipe 6 are enabled, and the tank cavity steam heating pipe 2 can also be enabled as needed. The introduction and extraction method of the polyphenylene sulfide fiber bundle is the same as the introduction and extraction method of the aforementioned polylactic acid fiber bundle. In the process of steam heating the polyphenylene sulfide fiber bundle, the aforementioned box cover spray pipe 31 is in a spraying state. Since the working principles of the upper and lower steam injection mechanisms 4 and 5 are similar, the applicant only describes the lower steam injection mechanism 5, and the steam is introduced into the lower steam injection box cavity 511 of the lower steam injection box 51 by the lower steam injection box steam introduction pipe 52, and the steam entering the lower steam injection box cavity 511 is sprayed upward from the lower steam injection pipe steam spray hole 512 to the polyphenylene sulfide fiber bundle passing through the upper part of the lower steam injection box 51. In this process, the steam inlet opening and closing control valve 522 is in an open state and the pressure regulating valve 521 can be operated as needed to obtain the desired steam pressure, the lower steam injection box low-temperature steam outlet valve 551 on the pipeline of the lower steam injection box low-temperature steam outlet pipe 55 is in an open state, and the lower steam injection box low-temperature steam outlet pipe steam trap 552 is in a working state. In the above process, the tank cover cavity steam heating pipe 6 is also in a working state as needed.

[0035] During the operation in which the operator introduces the fiber bundle 9 from the bundle feeding hole 14a to lead it out from the bundle lead-out hole 14b, the aforementioned trough cover 3 is in an open state, specifically: the motor 21 works to drive the reduction gearbox 72, which drives the flip shaft 333 through the reduction gearbox output shaft coupling 721, and the flip shaft 333 simultaneously drives the left flip arm 331 and the right flip arm 332, thereby forming a space between the trough cover 3 and the upper opening of the trough body 1. After the operation is completed, that is, in the process of stretching the fiber, the trough cover 3 is in a closed state.

[0036] In summary, the technical solution provided by the present invention makes up for the shortcomings of the existing technology, successfully completes the invention task, and faithfully realizes the technical effects stated by the applicant in the technical effect column above.

Claims

1. A water-steam dual-purpose fiber hot bath stretching tank structure, characterized in that The invention comprises a trough body (1), wherein a feeding strand guide roller (12) is arranged in a trough body cavity (11) of the trough body (1) and at the left end of the trough body cavity (11), and a leading strand guide roller (13) is arranged at the right end of the trough body cavity (11), and a strand feeding hole (14a) is opened on the left end wall of the trough body (1), and a strand leading hole (14b) is opened on the right end wall of the trough body (1), and a hot water introduction interface (14c) which is in communication with the trough body cavity (11) and is used to introduce hot water into the trough body cavity (11) is connected on the trough body bottom wall and at the left end of the trough body bottom wall, and a hot water introduction interface (14c) which is in communication with the trough body cavity (11) and is used to introduce hot water into the trough body cavity (11) is connected at the right end of the trough body bottom wall. ); a tank body cavity steam heating pipe (2), the tank body cavity steam heating pipe (2) is laid on the tank body bottom wall in the tank body cavity (11), and the tank body cavity steam heating pipe first end portion I (21) of the tank body cavity steam heating pipe (2) extends from the left end of the tank body bottom wall to the outside of the tank body cavity (11) and is connected to the steam supply source pipeline, and the tank body cavity steam heating pipe second end portion II (22) of the tank body cavity steam heating pipe (2) is constituted as a condensate outlet end and also extends through the tank body bottom wall to the outside of the tank body cavity (11) and is connected to the condensate outlet pipeline; a tank body cover (3), the tank body cover (3) is matched with the open part of the tank body on the side of the tank body (1) facing upward, and the tank body cover (3) is connected to the tank body cover (3) ) and at a position corresponding to the left side of the feeding bundle pressure guide roller (12), a tank cover spray pipe (31) is arranged, the lower end of the tank cover spray pipe (31) extends into the tank cavity (11), and the upper end is connected to the spray pipe water supply device pipeline; an upper steam injection mechanism (4) for injecting steam toward the tank cavity (11), the upper steam injection mechanism (4) is arranged in the tank cover cavity (32) of the tank cover (3) and is connected to the steam supply source pipeline when in use; a lower steam injection mechanism (5) for injecting steam upward, the lower steam injection mechanism (5) is fixed on the bottom wall of the tank in a state of being vacant above the bottom wall of the tank in an area corresponding to the steam heating pipe (2) in the tank cavity and When in use, it is also connected to the steam supply source pipeline; a tank cover cavity steam heating pipe (6), the tank cover cavity steam heating pipe (6) is laid on the tank cover top wall of the tank cover (3) in the tank cover cavity (32), and the tank cover cavity steam heating pipe first end portion I (61) of the tank cover cavity steam heating pipe (6) extends outside the tank cover cavity (32) and is connected to the steam supply source pipeline, and the tank cover cavity steam heating pipe second end portion II (62) is constituted as a low-temperature steam lead-out end and is also extended outside the tank cover cavity (32) and is connected to the steam recovery pipe pipeline; a tank cover opening and closing mechanism (7), the tank cover opening and closing mechanism (7) is arranged at the upper part of the rear right end of the tank (1) and is connected to the tank cover (3);A first end solenoid valve (211) of the trough cavity steam heating pipe is connected to the first end I (21) of the trough cavity steam heating pipe, and a second end steam outlet valve (221) of the trough cavity steam heating pipe and a second end steam trap (222) of the trough cavity steam heating pipe are arranged in order from top to bottom on the second end II (22) of the trough cavity steam heating pipe; a sewage outlet interface opening and closing valve (14e) is arranged on the sewage outlet interface (14d); the upper steam injection mechanism (4) comprises an upper steam injection box (41), an upper steam injection box steam inlet pipe (42), an upper steam injection box left fixed seat (43) and an upper steam injection box right fixed seat (44); the upper steam injection box (41) has an upper steam injection box cavity (411); the left end of the upper steam injection box (41) is fixed to the upper steam injection box left fixed seat (43), and the right end of the upper steam injection box (41) is fixed to the upper steam injection box right fixed seat (44); The upper steam injection box is fixed to the right fixing seat (44), and a plurality of rows of upper steam injection box steam holes (412) are arranged at intervals from left to right along the length direction of the upper steam injection box (41) and are communicated with the upper steam injection box cavity (411) and used to spray the steam in the upper steam injection box cavity (411) toward the tank body cavity (11), and each row has a plurality of upper steam injection box steam injection holes (412). One end of the upper steam injection box steam introduction pipe (42) is matched with the top of the upper steam injection box (41) and communicated with the upper steam injection box cavity (411), and the other end of the upper steam injection box steam introduction pipe (42) is connected to the steam supply source pipeline in the use state, and an opening and closing control valve is arranged on the pipeline of the upper steam injection box steam introduction pipe (42), the upper steam injection box left fixing seat (43) is fixed to the left end of the tank body cover (3), and the upper steam injection box right fixing seat (44) is fixed to the right end of the tank body cover (3). ; 2. The water-steam dual-purpose fiber hot bath stretching tank structure according to claim 1 is characterized in that A pair of trough support legs (15) are respectively arranged at the bottom of the left and right ends of the trough body (1), and the trough body (1) is in a state of being suspended from the ground through the trough support legs (15); a feeding filament guide roller shaft head (121) is respectively formed at the front end and the rear end of the feeding filament guide roller (12), and the feeding filament guide roller shaft head (121) is rotatably supported on the feeding filament guide roller shaft head support bearing seat (1211), and the feeding filament guide roller shaft head support bearing seat (1211) is fixed to the trough body (1) ; The front end and the rear end of the lead-out wire bundle pressure guide roller (13) are each formed with a lead-out wire bundle pressure guide roller shaft head (131), and the lead-out wire bundle pressure guide roller shaft head (131) is rotatably supported on the lead-out wire bundle pressure guide roller shaft head support bearing seat (1311), and the lead-out wire bundle pressure guide roller shaft head support bearing seat (1311) is fixed to the trough body (1); the wire bundle feeding hole (14a) is located in the middle of the left end wall of the trough body (1), and the wire bundle lead-out hole (14b) is located in the middle of the right end wall of the trough body (1).

3. The water-steam dual-purpose fiber hot bath stretching tank structure according to claim 1 is characterized in that The positions of the steam spray holes (412) of the upper steam spray boxes on the two adjacent rows on the left and right are staggered.

4. The water-steam dual-purpose fiber hot bath stretching tank structure according to claim 1 is characterized in that The lower steam injection mechanism (5) comprises a lower steam injection box (51), a lower steam injection box steam introduction pipe (52), a lower steam injection box left fixed seat (53), a lower steam injection box right fixed seat (54) and a lower steam injection box low-temperature steam outlet pipe (55); the lower steam injection box (51) has a lower steam injection box cavity (511); the left end of the lower steam injection box (51) is fixed to the lower steam injection box left fixed seat (53), and the right end of the lower steam injection box (51) is fixed to the lower steam injection box right fixed seat (54); at the top of the lower steam injection box (51), a plurality of rows of steam holes (512) are arranged at intervals from left to right along the length direction of the lower steam injection box (51) and are used to spray the steam in the lower steam injection box cavity (511) upward, and each row has a plurality of lower steam injection box steam injection holes (512); one end of the lower steam injection box steam introduction pipe (52) is connected to the lower steam injection box cavity (511); The bottom of the steam injection box (51) is matched and communicated with the lower steam injection box cavity (511), and the other end of the steam introduction pipe (52) of the lower steam injection box is connected to the steam supply source pipeline in the use state, and a pressure regulating valve (521) and a steam inlet opening and closing control valve (522) are arranged on the pipeline of the steam introduction pipe (52) of the lower steam injection box from top to bottom in sequence, and the left fixing seat (53) of the lower steam injection box is fixed to the left end of the bottom wall of the tank body (1). The right fixing seat (54) of the lower steam injection box is fixed to the right end of the bottom wall of the tank body (1); the low-temperature steam outlet pipe (55) of the lower steam injection box is matched with the bottom of the lower steam injection box (51) and communicates with the lower steam injection box cavity (511); and a lower steam injection box low-temperature steam outlet valve (551) and a lower steam injection box low-temperature steam outlet pipe steam trap (552) are arranged in sequence from top to bottom on the pipeline of the lower steam injection box low-temperature steam outlet pipe (55).

5. The water-steam dual-purpose fiber hot bath stretching tank structure according to claim 4 is characterized in that The positions of the steam spray holes (512) of the lower steam spray boxes on each of the two adjacent rows on the left and right are staggered.

6. The water-steam dual-purpose fiber hot bath stretching tank structure according to claim 1 is characterized in that A trough body platform (16) is formed at the upper rear part in the longitudinal direction of the trough body (1); the trough body cover opening and closing mechanism (7) is arranged at the upper right end of the trough body platform (16); a cover carrying mechanism (33) is arranged on the side of the trough body cover (3) facing away from the trough body cover cavity (32); and the trough body cover opening and closing mechanism (7) is connected to the cover carrying mechanism (33).

7. The water-steam dual-purpose fiber hot bath stretching tank structure according to claim 6 is characterized in that The tank cover opening and closing mechanism (7) comprises a motor (71) and a reduction gear box (72), the motor (71) and the reduction gear box (72) being in transmission cooperation and being fixed to the upper right end of the tank platform (16) by the reduction gear box (72) together with the motor (71), the reduction gear box output shaft of the reduction gear box (72) facing left and being connected to the cover lifting mechanism (33) arranged on the tank cover (3) through the reduction gear box output shaft coupling (721); wherein a left shaft seat (17a) of a flip shaft is fixed to the upper left end of the tank platform (16), and a right shaft seat (17b) of a flip shaft is fixed to the right end of the tank platform (16) and at a position corresponding to the left end of the reduction gear box output shaft coupling (721); the motor (71) is a motor with forward and reverse rotation functions.

8. The water-steam dual-purpose fiber hot bath stretching tank structure according to claim 7 is characterized in that The cover-lifting mechanism (33) comprises a left flip arm (331), a right flip arm (332) and a flip shaft (333). The left flip arm (331) is located at the left end of the tank cover (3). A left flip arm hanging foot groove (3311) is provided at the front end of the left flip arm (331). The left flip arm hanging foot groove (3311) matches with the left hanging foot (33111) of the tank cover and is limited by a left latch (33112) which is inserted and pulled out of the left hanging foot (33111) of the tank cover. The middle part of the left flip arm (331) is connected to the left flip arm hinge shaft (3311) by the left flip arm hinge shaft (3311). 2) is hinged on the left flip arm hinge shaft seat (33121), and the left flip arm hinge shaft seat (33121) is fixed to the tank cover (3) at a position corresponding to the rear side of the left hanging foot (33111) of the tank cover, the rear end of the left flip arm (331) protrudes out of the rear side of the tank cover (3), the right flip arm (332) is located at the right end of the tank cover (3), and a right flip arm hanging foot groove (3321) is provided at the front end of the right flip arm (332), the right flip arm hanging foot groove (3321) cooperates with the right hanging foot (33211) of the tank cover and is arranged on the right side of the tank cover by plugging and unplugging. The right latch (33212) on the hanging foot (33211) defines that the middle part of the right flip arm (332) is hinged on the right flip arm hinge shaft seat (33221) through the right flip arm hinge shaft (3322), and the right flip arm hinge shaft seat (33221) is fixed to the tank cover (3) at a position corresponding to the rear side of the right hanging foot (33211) of the tank cover, the rear end of the right flip arm (332) protrudes out of the rear side of the tank cover (3), and the left end of the flip shaft (333) passes through the rear end of the left flip arm (331) and is rotatably supported on the left flip shaft seat (17a) The left flip arm (331) is locked with the left flip arm (331) by the left locking screw (3331) of the flip shaft at a position corresponding to the rear end of the left flip arm (331), and the right end of the flip shaft (333) passes through the right side of the rear end of the right flip arm (332) and is locked with the right flip arm (332) by the right locking screw (3332) of the flip shaft at a position corresponding to the rear end of the right flip arm (332), and the right end of the flip shaft (333) is also rotatably supported on the right shaft seat (17b) of the flip shaft, and the output shaft coupling (721) of the reduction gearbox is connected to the right end of the flip shaft (333).

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