CN206570461U - A kind of thermoplastic fibre twisting mill - Google Patents

Abstract

The utility model provides a thermoplastic fiber twisting machine, which comprises an axially extending linear workbench, on which a creel, a yarn spreading device, a dewaxing furnace, an automatic Feeding dryer device, glue injection device, dipping device, silk twisting device and winding device; the automatic feeding dryer device includes a drying tower, a feeding mechanism, a discharging mechanism and a dehumidification mechanism, and the glue injection device includes adding Hopper, screw high-temperature injection machine and injection port. The dipping device includes a furnace body, a dipping tank and a rubber extrusion roller. The two ends of the furnace body are respectively provided with a yarn inlet and a yarn outlet. The top of the furnace body is equipped with There is an exhaust gas discharge port connected with the dipping tank. The utility model can complete the thermoplastic twisting process for high-temperature fiber tow, and has excellent performance, compact structure, convenient fiber tow dipping, twisting and winding, and low production cost. High, long service life and other advantages.

Description

A thermoplastic fiber twisting machine

technical field

The utility model relates to special equipment for thermoplastic fiber twisting production, in particular to a special machine for impregnating multi-filament fibers with high-temperature resin at the same time, and then twisting single-filament bundles to produce thermoplastic rubber-coated fiber tows. equipment.

Background technique

At present, the common fiber twisting machines on the market mainly include room temperature natural fiber twisting machines and low temperature synthetic fiber twisting machines. The natural fiber twisting machine is a mechanical device that uses natural plant fibers to twist at room temperature to increase fiber strength and lay the foundation for the next stranding process; low-temperature synthetic fiber twisting machine uses low-temperature chemical synthetic fiber tows for twisting Increase the fiber strength and lay the foundation for the next step of joint production of finished products; while the high-end market urgently needs thermoplastic high-temperature twisting machines that can twist and produce high-temperature fiber tows, there are no domestic reports yet.

Contents of the invention

Aiming at the above technical problems, the utility model provides a thermoplastic fiber twisting machine with excellent performance, compact structure, convenient twisting and winding for fiber tow dipping, low production cost, high efficiency and long service life.

For achieving the above object, the technical scheme that the utility model adopts is:

A thermoplastic fiber twisting machine, comprising an axially extending linear workbench, on which a creel, a yarn spreading device, a dewaxing furnace, an automatic feeding dryer device, Glue injection device, dipping device, silk twisting device and winding device;

The automatic feeding dryer device includes a drying tower, the top of the drying tower is respectively provided with a loading hopper and a hot air blowing inlet, the described feeding hopper is connected with the feeding mechanism, and the hot air blowing inlet is connected with the blowing air of the dehumidification mechanism. The pipes are connected, and the bottom of the drying tower is provided with a discharge port, and the discharge port is connected with the discharge mechanism;

The glue injection device is composed of a hopper, a screw high-temperature injection machine and an injection port. The top of the glue injection device is provided with a hopper, and the feed port of the hopper is connected to the discharge mechanism of the automatic feeding dryer device. , the discharge port of the feeding hopper is connected with the resin particle replenishment port in the high-temperature screw injection machine, and the high-temperature screw injection machine is equipped with a heating device for high-temperature heating of the resin particles and a screw feeding into the injection port. auger;

The dipping device includes a furnace body, the two ends of the furnace body are respectively provided with a yarn inlet and a yarn outlet, and the inside of the furnace body is provided with a dipping tank for dipping glue, the yarn inlet, the dipping The groove and the yarn outlet are connected in a straight line, and there is a squeeze roller in the dipping groove to remove excess glue on the fiber tow, and the top of the dipping groove is connected with the injection port of the glue injection device through the glue inlet conduit. The top of the furnace body is provided with an exhaust gas outlet connected to the dipping tank;

The thread twisting device is composed of a support panel and a twisting bearing, the support panel is fixed at the yarn outlet of the dipping furnace body, the twisting bearing is fixed on the support panel, and the twisting bearing is fixed on the support panel. There are 4 sets of twisting bearings, and the 4 sets of twisting bearings are uniformly distributed in the circumferential direction at the yarn outlet of the dipping device. Each set of twisting bearings is composed of two sets of bearings that rotate in opposite directions. device is connected.

Through the above-mentioned technical proposal, the thermoplastic fiber twisting machine of the utility model is completed through mutual cooperation of the creel, the yarn spreading device, the dewaxing furnace, the automatic feeding dryer device, the glue injection device, the dipping device, the thread twisting device and the winding device. Twisting work for thermoplastic fibers. The utility model carries out the pretreatment of the yarn and the pretreatment of the resin colloids synchronously, and finally completes the thermoplastic and twisting of the fiber in the glue dipping device and the thread twisting device. Specifically, firstly, the fiber tows are released together through multiple tension bobbins on the creel; then the spreading device spreads the multiple fiber tows evenly and applies a certain tension; the evenly spread fiber tows enter the dewaxing furnace for The fiber tow is heated and dewaxed, and the dewaxed fiber tow continues to the yarn inlet of the dipping device to wait for dipping. At the same time, the pretreatment of the resin particles is also carried out simultaneously. First, the automatic feeding In the dryer device, resin particles enter the interior of the drying tower from the upper hopper of the drying tower through the feeding mechanism. The principle of the dehumidification mechanism is to heat the molecular sieve that has a high adsorption effect on water molecules to produce dry hot air without moisture. , and then use the blower pipe to blow dry hot air into the drying tower. When this airflow passes through the drying tower, the moisture in the gel resin particles can be exchanged and taken away, thus meeting the requirements for drying the gel resin particles. Finally, the dried gel resin particles are transported to the injection device through the discharge mechanism; the dried resin particles enter the screw high-temperature injection machine through the feeding hopper, and the screw high-temperature injection machine is heated by its own high-temperature heating device, and The heat generated by the friction of the Archimedes screw auger in the pump body during the raw material feeding process melts the resin particles into a melt, and finally heats and melts the resin particles and injects them into the dipping device; the sol enters the dipping tank of the dipping device , impregnate the glue solution that enters the glue tank through the yarn inlet into the fiber tow, squeeze the excess glue on the fiber tow by squeezing the rubber roller, and pass the waste gas generated during the dipping process through the exhaust gas discharge port. The air outlet is discharged in time, and the thread twisting device at the yarn outlet uses two sets of bearings to rotate in reverse to realize the process of twisting the multi-strand fiber tows separately; the final winding device is to twist the twisted multi-strand fibers The tows are individually closed at constant tension.

Further, the yarn spreading device described in the utility model is composed of a yarn splitting mechanism and a yarn spreading mechanism, and the yarn spreading mechanism is provided with a heating rod for preheating the fibers.

Through the above technical proposal, the yarn spreading device of the present invention is installed before the dewaxing furnace, and has two functions of yarn splitting and yarn spreading. The splitting part plays the role of adjusting the width of the fiber and evenly isolating the fiber tow; the role of the spreading part is to apply a tension to the fiber so that the fiber can be spread evenly, and the spreading mechanism is equipped with a preheating device for the fiber tow The heating rod can preheat the fiber tow and reduce the brittleness of the fiber.

Furthermore, the dewaxing furnace described in the utility model includes a furnace body, a cantilevered heat guide roller and an exhaust system, and the furnace body is filled with thermal insulation materials.

Through the above technical scheme, the main function of the dewaxing furnace device of the present invention is to heat and melt the paraffin wax on the fiber tow entering the dewaxing furnace and clean it up, so as to prepare for the next step of producing thermoplastic fiber resin prepreg . The furnace body of the dewaxing furnace is welded by high-temperature-resistant and alkali-resistant stainless steel plates, and the middle is filled with thermal insulation materials, so that the furnace body has dual functions of self-heating and maintaining temperature consistency. The temperature range is 200 ° C ~ 300 ° C ;The cantilever heating roller hanging wire is easy to operate, and at the same time has the function of continuously providing heat energy to the furnace, the temperature range is 200 ℃ ~ 300 ℃; the function of the exhaust system is to discharge the waxy waste gas in the furnace in time. The main function of the dewaxing furnace is to heat and melt the paraffin wax on the fiber tow entering the dewaxing furnace to prepare for the production of thermoplastic twisted fibers.

Furthermore, the drying tower described in the utility model is provided with a material level gauge for detecting the feeding height.

Further, a heating and heat preservation cavity is also provided between the inner wall of the furnace of the dipping device of the present invention and the outer wall of the dipping tank. The heating and heat preservation cavity is provided with a high-temperature heating tube, and the inside of the heating and heat preservation cavity is filled with insulation Material.

Through the above technical solution, the furnace body of the glue dipping device of the utility model adopts a heating and heat preservation furnace body, which can better maintain the molten state of the glue liquid and save heating energy at the same time.

Further, the rewinding device described in the present utility model includes a rewinding support and a rewinding reel, the rewinding reel array is arranged on the rewinding support, the central axis of the rewinding reel is connected with the motor shaft of the servo motor, and the support The role of the winding reel is to facilitate the installation of the winding reel; the function of the rewinding reel is to achieve uniform tension winding under the action of the servo motor.

Further, the utility model also includes an electric control system, which includes an electric control cabinet, a display alarm, an operation synchronization system, an unwinding tension system, a winding tension system and a heating temperature control system. Display alarm: the equipment uses a touch screen as the man-machine interface, which saves a lot of buttons. Any failure of the equipment can be displayed through the touch screen, and the alarm sounds at the same time, shortening the time for fault judgment; operation synchronization system: each cantilever type heating The speed of the guide rollers is controlled by frequency conversion. The speed signal of the frequency converter comes from the PLC. Through the internal calculation of the PLC, the synchronous operation between the cantilevered thermal guide rollers is realized, and it has the detection function; unwinding tension system: tension sensor is used for unwinding The closed-loop control system of the detection signal can realize manual/automatic tension control; winding tension system: the winding tension adopts the high-precision vector control mode of the frequency converter, and the tension control is stable and reliable; heating temperature control system: the temperature control of the heat guide roller adopts Intelligent instrument control, with PID control function, high temperature control accuracy, and over-temperature power-off function.

The beneficial effects of the utility model are as follows: 1. The utility model has complete functions, one machine with multiple functions, can complete the thermoplastic twisting process for high-temperature fiber tow, and has excellent performance, compact structure, fiber tow dipped in rubber, twisted and collected It has the advantages of convenient roll, low production cost, high efficiency and long service life. 2. The yarn spreading device of the utility model has two functions of yarn splitting and yarn spreading. The yarn spreading mechanism is equipped with a heating rod for preheating the fiber tow, which can preheat the fiber tow and reduce fiber brittleness. effect. 3. The utility model adds an electric control system, enhances the automatic control performance of the device, and has a more friendly human-computer interaction page. The heating roller and each traction part adopt frequency conversion control speed through the operation synchronization system, and each heating equipment adopts Intelligent instrument control, with PID control function, high temperature control accuracy, and over-temperature power-off function to ensure equipment safety.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Fig. 2 is an enlarged view of the local structure of the dewaxing furnace in the utility model.

Fig. 3 is an enlarged view of the local structure of the automatic feeding dryer device in the utility model.

Fig. 4 is an enlarged view of the partial structure of the glue injection device in the present invention.

Fig. 5 is an enlarged view of the partial structure of the dipping device and the thread twisting device in the utility model.

Fig. 6 is an enlarged view of the partial structure of the winding device in the present invention.

detailed description

The technical scheme of the utility model is further described below in conjunction with the accompanying drawings and embodiments.

A thermoplastic fiber twisting machine, comprising an axially extending linear workbench, on which a creel 1, a yarn spreading device 2, a dewaxing furnace 3, an automatic feeding drying Machine device 4, glue injection device 5, dipping device 6, silk thread twisting device 7 and winding device 8;

Described automatic feeding drier device comprises drying tower 4a, and the top of drying tower 4a is provided with upper hopper 4b and hot-air blowing inlet 4c respectively, and described upper hopper 4a is connected with feeding mechanism 4d, and described hot-air blowing inlet 4c is connected with the blast pipe of dehumidification mechanism 4e, and the bottom of drying tower is provided with discharge port 4f, and described discharge port 4f is connected with discharge mechanism 4g, is also provided with in the drying tower the material that is used for detecting the height of feeding. Bit meter 4h;

The glue injection device is composed of a hopper 5a, a screw high-temperature injection machine 5b and an injection port 5c. The top of the glue injection device is provided with a hopper 5a. The discharge mechanism is connected, and the discharge port of the hopper is connected with the resin particle replenishment port in the screw high-temperature injection machine. The screw high-temperature injection machine 5b is equipped with a heating device 5d for high-temperature heating of the resin particles and a The screw auger 5e for feeding in the injection port;

The dipping device comprises a body of furnace 6a, the two ends of the body of furnace are respectively provided with a yarn inlet 6b and a yarn outlet 6c, the inside of the body of furnace is provided with a dipping tank 6d for dipping glue, and the yarn inlet The port 6a, the dipping tank 6d and the yarn outlet 6c are connected in a straight line, and the rubber dipping tank is provided with a squeeze roller 6e for removing excess glue on the fiber tow, and the top of the dipping tank passes through the glue inlet conduit 6f and the glue injection device The injection port is connected, the top of the furnace body is provided with a waste gas discharge port 6g connected with the dipping tank, and a heating and insulating chamber 6h is also provided between the inner wall of the furnace and the outer wall of the dipping tank. A high-temperature heating tube is arranged in the heating and insulating chamber, and the interior of the heating and insulating chamber is filled with insulating materials;

The thread twisting device is composed of a support panel 7a and a twisting bearing 7b, the support panel is fixed at the yarn outlet of the dipping furnace body, and the twisting bearing 7b is fixed on the support panel 7a, There are 4 sets of twisting bearings, and the 4 sets of twisting bearings are uniformly distributed in the circumferential direction at the yarn outlet of the dipping device, and each set of twisting bearings is composed of two sets of bearings that rotate in opposite directions. The end is connected to the winding device.

The winding device includes a winding support 8a and a winding reel 8b. The rewinding reel 8b array is arranged on the rewinding support 8a, and the central axis of the rewinding reel is connected with the motor shaft of the servo motor. The effect of the support is to facilitate Install the winding reel; the function of the rewinding reel is to achieve uniform tension winding under the action of the servo motor.

The yarn spreading device in this embodiment is composed of a yarn splitting mechanism and a yarn spreading mechanism. The yarn spreading mechanism is provided with a heating rod for preheating the fibers to preheat the fiber tow and reduce fiber brittleness. . The dewaxing furnace in this embodiment includes a furnace body 3a, a cantilevered heat guide roller 3b and an exhaust system 3c, and the furnace body is filled with thermal insulation materials. The furnace body of the dewaxing furnace is welded by high-temperature-resistant and alkali-resistant stainless steel plates, and the middle is filled with thermal insulation materials, so that the furnace body has dual functions of self-heating and maintaining temperature consistency. The temperature range is 200 ° C ~ 300 ° C ;The cantilever heating roller hanging wire is easy to operate, and at the same time has the function of continuously providing heat energy to the furnace, the temperature range is 200 ℃ ~ 300 ℃; the function of the exhaust system is to discharge the waxy waste gas in the furnace in time. The main function of the dewaxing furnace is to heat and melt the paraffin wax on the fiber tow entering the dewaxing furnace to prepare for the production of thermoplastic twisted fibers. In this embodiment, an electric control system is used to control the electrical components in the utility model, and the electric control system includes an electric control cabinet, a display alarm, a synchronous operation system, an unwinding tension system, a winding tension system and heating temperature control system.

Claims (7)

1. a kind of thermoplastic fibre twisting mill, it is characterised in that：Including axially extending linear pattern workbench, in linear pattern work On platform creel, exhibition yarn feeding device, dewaxing furnace, self-feeding dryer device, injecting glue are sequentially provided with according to the direction of advance of fibre bundle Device, gumming device, silk yarn twisting device and wrap-up；

Described self-feeding dryer device includes being respectively equipped with elevating hopper at the top of drying tower, drying tower and hot blast is blown into Mouthful, described elevating hopper is connected with feed mechanism, and described hot blast blows into mouth and is connected with the blast pipe of desiccant body, dries The bottom of tower is provided with discharging opening, and described discharging opening is connected with discharging mechanism；

Described glue filling device is made up of loading hopper, screw at high temp injector and injection port, and the top of glue filling device is provided with charging Bucket, the charging aperture of described loading hopper is connected with the discharging mechanism of self-feeding dryer device, the discharging opening of loading hopper and Resin particle supply port in screw at high temp injector is connected, and is provided with to enter resin particle in described screw at high temp injector The heater of row high-temperature heating and the screw auger being fed into the injection port；

The gumming device is included by body of heater, and the two ends of body of heater are respectively equipped with yarn inlet and yarn outlet, and interior be provided with of body of heater is used for The steeping vat of glue is impregnated, described yarn inlet, steeping vat connects with yarn outlet straight line, provided with removal fibre bundle in steeping vat On unnecessary glue Extruded roller, the top of steeping vat is connected through entering glue conduit with the injection port of glue filling device, described stove The top of body is provided with the Waste gas outlet being connected with steeping vat；

Described silk yarn twisting device, is made up of, described support panel is fixed on impregnation body of heater support panel and twisting bearing Yarn outlet at, described twisting bearing is sincere on support panel, and described twisting bearing has 4 sets, 4 sets of twisting bearings weeks To uniform gumming device at yarn outlet, often set twisting bearing is made up of the two groups of bearings reversely rotated, the silk thread twisting The port of export of device is connected with wrap-up.

2. a kind of thermoplastic fibre twisting mill according to claim 1, it is characterised in that：Described exhibition yarn feeding device is by dividing sinker Mechanism and Zhan Sha mechanisms composition, described Zhan Sha mechanisms are provided with the heating rod preheated to fiber.

3. a kind of thermoplastic fibre twisting mill according to claim 1, it is characterised in that：Described dewaxing furnace includes stove Filling heat preserving and insulating material in body, cantilevered heated godet roll and gas extraction system, described body of heater.

4. a kind of thermoplastic fibre twisting mill according to claim 1, it is characterised in that：Provided with use in described drying tower In the level-sensing device of detection charging height.

5. a kind of thermoplastic fibre twisting mill according to claim 1, it is characterised in that：In the body of heater of the gumming device It is additionally provided between wall and the outer wall of steeping vat in heating and thermal insulation chamber, described heating and thermal insulation chamber and is provided with high-temperature heating pipe, heating is protected The inside of warm chamber is filled with insulation material.

6. a kind of thermoplastic fibre twisting mill according to claim 1, it is characterised in that：Described wrap-up includes receiving Roll support and closed reel, described winding disk array are arranged on winding support, the axis of closed reel and the motor of servomotor Axle is connected.

7. a kind of thermoplastic fibre twisting mill according to claim 1, it is characterised in that：Also include electric-control system, it is described Electric-control system include electrical control cabinet, display alarm, for control cantilevered heated godet roll run-in synchronism operation synchronously be System, the unwinding tension system for controlling unwinding tension, winding tension system and heating-up temperature control for controlling winding tension System processed, described display alarm, operation synchronization system, unwinding tension system, winding tension system and heating and temperature control System is electrically connected with electrical control cabinet respectively.