CN102922751B - Resin transfer molding glue injection machine for continuous fiber reinforced nylon 6 composite material - Google Patents
Resin transfer molding glue injection machine for continuous fiber reinforced nylon 6 composite material Download PDFInfo
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- CN102922751B CN102922751B CN201210479911.8A CN201210479911A CN102922751B CN 102922751 B CN102922751 B CN 102922751B CN 201210479911 A CN201210479911 A CN 201210479911A CN 102922751 B CN102922751 B CN 102922751B
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Abstract
The invention discloses a resin transfer molding glue injection machine for continuous fiber reinforced nylon 6 composite material, which comprises a first charging bucket for accommodating monomers, a second charging bucket for accommodating catalyst, a third charging bucket for accommodating initiator and a fourth charging bucket, wherein the monomers, the catalyst and the initiator, which are heated to be melted, are transferred to the fourth charging bucket through respective metering devices, and mixed to form a glue injection raw material; the glue injection raw material is injected to a mold through a discharge opening in the bottom end of the fourth charging bucket and a pipeline communicated with the bottom end of the fourth charging bucket for molding; and the volume of the fourth charging bucket is larger than that of glue injection raw material which can be accommodated in the mold. The automatic glue injection machine provided by the invention can conduct automatic metering, mixing and glue injection, and is continuous in process and high in glue injection efficiency.
Description
Technical field
The present invention relates to glue-injection machine, particularly a kind of resin transfer moulding glue injection machine, be specifically related to the resin dedicated Transfer molding glue-injection machine of a kind of continuous lod nylon monomer-cast nylon 6 thermoplastic composite.
Background technology
At present, resin transfer moulding (Resin Transfer Moulding, RTM) method or vacuum assisted resin transfer molding (VARTM) method is usually adopted to prepare fiber-resin composite.So-called resin transfer moulding, refers to by resin injection to containing reinforcing material, as in the close die of fortifying fibre, infiltrates reinforcing material and the process of solidification.
Continuous lod PA6 thermoplastic composite has higher mechanical property, also have higher shock resistance compared with thermosetting resin based composites and the advantage such as can to recycle, therefore continuous lod PA6 thermoplastic composite is with a wide range of applications.
But, also there is no a kind of semi-automatic or full-automatic RTM glue-injection machine being applicable to continuous lod PA6 thermoplastic composite at present.Existing nylon glue-injection machine on market, its design is injecting glue in the mould of cavity, there is no injecting glue resistance, and in the mould of continuous lod PA6 thermoplastic composite, be full of fabric, when injecting glue, resistance is larger, this resistance can make the metering of measuring pump change, thus causes catalyst proportion to change, and then can not be polymerized.Therefore, owing to not having the glue-injection machine be applicable to, continuous lod PA6 thermoplastic composite is also in laboratory stage, can not get promoting.
Therefore, this area semi-automatic or full-automation of exploitation of still needing is applicable to the RTM glue-injection machine of continuous lod PA6 thermoplastic composite, promotes that continuous lod PA6 thermoplastic composite is applied.
Summary of the invention
The object of the present invention is to provide a kind of continuous lod PA6 thermoplastic composite resin transfer moulding glue injection machine, Automatic continuous carries out injecting glue, improves injecting glue efficiency and quality.
A first aspect of the present invention, provides a kind of glue-injection machine, comprising:
First batch can, described first batch can is used for splendid attire monomer, described first batch can is configured with the first agitating device, first heater, the first inert gas conveying device;
Second batch can, described second batch can is used for holding catalyst, described second batch can is configured with the second agitating device, secondary heating mechanism, the second inert gas conveying device;
3rd batch can, described 3rd batch can is used for splendid attire initator, described 3rd batch can is configured with the 3rd agitating device, the 3rd inert gas conveying device and optionally the 3rd heater;
4th batch can, described monomer, described catalyst and described initator carry out being mixed into injecting glue raw material in described 4th batch can, described 4th batch can are configured with the 4th agitating device, the 4th heater, the 4th inert gas conveying device;
Described first batch can bottom is connected with described 4th batch can by the first pipeline, and described first pipeline is provided with the first metering device;
Described second batch can bottom is connected with described 4th batch can by the second pipeline, and described second pipeline is provided with the second metering device;
Described 3rd batch can bottom is connected with described 4th batch can by the 3rd pipeline, and described 3rd pipeline is provided with the 3rd metering device;
The bottom of described 4th batch can arranges discharging opening, be connected with the 4th pipeline, described 4th pipeline arranges discharging controlling element, open described discharging controlling element, described injecting glue raw material is injected in mould through the 4th pipeline of discharging opening and connection, and the volume of described 4th batch can is greater than the volume that described mould can hold injecting glue raw material.
In another preference, described monomer is caprolactam.
In another preference, described catalyst includes but not limited to sodium caprolactam or caprolactam magnesium bromide.
In another preference, described initator includes but not limited to hexa-methylene-1,6-bis-formyl caprolactam, toluene di-isocyanate(TDI) (TDI) or 4,4-methyl diphenylene diisocyanate (MDI).
In another preference, described first heater comprises the first temperature sensor and the first heating jacket, described first batch can top arranges the first temperature sensor entrance, it is inner that described first temperature sensor is inserted into described first batch can by described first temperature sensor entrance, for detecting described first batch can internal temperature, described first heating jacket is placed in described first batch can periphery, for heating described first batch can;
Described first batch can top is provided with the first inert gas entrance and the first gas vent, and described first inert gas entrance is connected with described first inert gas conveying device by the first tracheae, inert gas is delivered to described first batch can inner; Described first gas vent is provided with the first gas vent valve;
First agitating device is electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, the monomer extending into described first batch can inside is inner, and described driver is arranged at the upper end of described shaft, is positioned at above described first batch can, open described driver, drive described shaft, paddle to rotate, described monomer is stirred, monomer feed liquid is heated evenly.
In another preference, described first heating jacket adopts electrical heating or heat-conducting oil heating.
In another preference, open described first gas vent valve, the air in batch can is discharged by inert gas, ensures to be full of atmosphere of inert gases in the first batch can, prevent monomer in the first batch can oxidized.Inert gas flow controls at 0.2 ~ 2L/min.
In another preference, described secondary heating mechanism comprises the second temperature sensor and the second heating jacket, described second batch can top arranges the second temperature sensor entrance, it is inner that described second temperature sensor is inserted into described second batch can by described second temperature sensor entrance, for detecting described second batch can internal temperature, described second heating jacket is placed in described second batch can periphery, for heating described second batch can; Described second batch can top is provided with the second inert gas entrance and the second gas vent, and described second inert gas entrance is connected with described second inert gas conveying device by the second tracheae, inert gas is delivered to described second batch can inner; Described second gas vent is provided with the second gas vent valve;
Second agitating device is electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, extend into the catalytic inner of described second batch can inside, described driver is arranged at the upper end of described shaft, is positioned at above described second batch can, open described driver, drive described shaft, paddle to rotate, described catalyst is stirred, catalyst feed liquid is heated evenly.
In another preference, described second heating jacket adopts electrical heating or heat-conducting oil heating.
In another preference, open described second gas vent valve, the air in batch can is discharged by inert gas, ensures to be full of atmosphere of inert gases in the second batch can, prevent catalyst in the second batch can oxidized.Nitrogen flow controls at 0.2 ~ 2L/min.
In another preference, described 3rd heater comprises three-temperature sensor and the 3rd heating jacket, described 3rd batch can top arranges three-temperature sensor entrance, it is inner that described three-temperature sensor is inserted into described 3rd batch can by described three-temperature sensor entrance, for detecting described 3rd batch can internal temperature, described 3rd heating jacket is placed in described 3rd batch can periphery, for heating described 3rd batch can;
Described 3rd batch can top is provided with the 3rd inert gas entrance and the 3rd gas vent, and described 3rd inert gas entrance is connected with described 3rd inert gas conveying device by the 3rd tracheae, inert gas is delivered to described 3rd batch can inner; Described 3rd gas vent is provided with the 3rd gas vent valve.3rd agitating device is electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, the initator extending into described 3rd batch can inside is inner, and described driver is arranged at the upper end of described shaft, is positioned at above described 3rd batch can, open described driver, drive described shaft, paddle to rotate, described initator agent is stirred, initator feed liquid is heated evenly.
In another preference, described 3rd heating jacket adopts electrical heating or heat-conducting oil heating.
In another preference, open described 3rd gas vent valve, the air in batch can is discharged by inert gas, ensure to be full of atmosphere of inert gases in the 3rd batch can, prevent initator in the 3rd batch can oxidized.Nitrogen flow controls at 0.2 ~ 2L/min.
In another preference, described 4th heater comprises the 4th temperature sensor and the 4th heating jacket, described 4th batch can top arranges the 4th temperature sensor entrance, it is inner that described 4th temperature sensor is inserted into described 4th batch can by described 4th temperature sensor entrance, for detecting described 4th batch can internal temperature, described 4th heating jacket is placed in described 4th batch can periphery, for heating described 4th batch can;
Described 4th batch can top is provided with the 4th inert gas entrance and the 4th gas vent, and described 4th inert gas entrance is connected with described 4th inert gas conveying device by the 4th tracheae, inert gas is delivered to described 4th batch can inner; Described 4th gas vent is provided with the 4th gas vent valve;
4th agitating device is electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, the injecting glue raw material extending into described 4th batch can inside is inner, and described driver is arranged at the upper end of described shaft, is positioned at above described 4th batch can, open described driver, drive described shaft, paddle to rotate, described injecting glue raw material is stirred, injecting glue raw material is mixed.
In another preference, open described 4th gas vent valve, the air in batch can is discharged by inert gas, ensure to be full of atmosphere of inert gases in the 4th batch can, prevent injecting glue raw material in the 4th batch can oxidized.Nitrogen flow controls at 0.2 ~ 2L/min.
In another preference, described 4th heating jacket adopts electrical heating or heat-conducting oil heating.
In another preference, the revolution of described electric mixing device shaft is adjustable.
In another preference, described discharging controlling element is discharge valve, close the 4th gas outlet valve, increase the gas pressure in the 4th batch can, open described discharge valve, described injecting glue raw material is extruded described 4th batch can and carries out injecting glue, in described 4th batch can, pressure maintains 0.1-0.5MPa.。
In another preference, described 3rd batch can is also configured with pressure sensor, for detecting the air pressure of described 3rd batch can inside.
In another preference, described discharging controlling element is pump, under the effect of pump, the injecting glue raw material in described 4th batch can is drawn through described 4th pipeline and is injected in mould.
In another preference, described pump is piston pump or gear pump.
In another preference, described first metering device is measuring pump;
Described second metering device is measuring pump; Described 3rd metering device is measuring pump.
In another preference, described measuring pump is piston type dosing pump or gear wheel metering pump.
In another preference, described glue-injection machine also has following one or more feature:
I () described first heater heats described first batch can, make the temperature of described monomer be 100-150 DEG C;
(ii) described 4th heater heats described 4th batch can, makes the temperature of described injecting glue raw material be 100-150 DEG C;
(iii) described first batch can, the second batch can, the 3rd batch can, the 4th batch can have good air-tightness;
(iv) described first inert gas conveying device, the second inert gas conveying device, the 3rd inert gas conveying device, the 4th inert gas conveying device include compression High Purity Nitrogen gas cylinder, respectively to described first batch can, the second batch can, the 3rd batch can, the 4th batch can conveying high pure nitrogen; Gas flow is 0.2 ~ 2L/min independently of one another;
V the temperature of () described mould is 140-190 DEG C;
(vi) described secondary heating mechanism heats described second batch can, makes the temperature of described catalyst be 100-150 DEG C;
(vii) described 3rd heater heats described 3rd batch can, makes the temperature of described initator be 20-150 DEG C.
In another preference, described mould is built-in with continuous fiber.
In another preference, described continuous fiber is the inorganic or organic fibers such as carbon fiber, glass fibre, aramid fiber, polypropylene (PP) fiber, polyamide (PA) fiber, polyethylene (PE) fiber, polyester (PET/PBT) fiber.
In another preference, described continuous fiber exists in the form of a fabric.
Glue-injection machine provided by the invention, automatically can carry out metering mixture, automatically carry out injecting glue, and technique is continuous, and injecting glue efficiency is high.
Should be understood that within the scope of the present invention, above-mentioned each technical characteristic of the present invention and can combining mutually between specifically described each technical characteristic in below (eg embodiment), thus form new or preferred technical scheme.As space is limited, tiredly no longer one by one to state at this.
Accompanying drawing explanation
Fig. 1 is glue-injection machine structural representation of the present invention.
Detailed description of the invention
Present inventor is through extensive and deep research, the unexpected resin transfer moulding glue injection machine being applicable to continuous fibre reinforced nylon 6 thermoplastic composite designing a kind of automation first, comprise: the first batch can of splendid attire monomer, second batch can of holding catalyst, the 3rd batch can of splendid attire initator and the 4th batch can.The monomer of heating and melting, catalyst and initator are delivered to the 4th batch can respectively through respective metering device to carry out being mixed into injecting glue raw material; The discharging opening of injecting glue raw material through the 4th batch can bottom, pipeline are injected into and carry out molded in mould, and the volume of described 4th batch can is greater than the volume that described mould can hold injecting glue raw material.This glue-injection machine, automatically can carry out metering mixture, automatically carry out injecting glue, and technique is continuous, and injecting glue efficiency is high.On this basis, the present invention is completed.
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.The experimental technique of unreceipted actual conditions in the following example, the usually conveniently conditioned disjunction condition of advising according to manufacturer.
Unless otherwise defined, all specialties used in literary composition and scientific words and one skilled in the art the meaning be familiar with identical.In addition, any method similar or impartial to described content and material all can be applicable in the inventive method.The use that better implementation method described in literary composition and material only present a demonstration.
Inert gas
In the present invention, " inert gas " refers to the gas not participating in reacting, preventing material in batch can oxidized, and preferably, inert gas is helium, nitrogen, argon gas, and more preferably, inert gas is high pure nitrogen.
Glue-injection machine
As shown in Figure 1, glue-injection machine of the present invention, comprising:
First batch can 1, described first batch can 1, for splendid attire monomer, described first batch can 1 is configured with the first agitating device 4, first heater, the first inert gas conveying device (not shown);
Second batch can 2, described second batch can 2, for holding catalyst, described second batch can 2 is configured with the second agitating device 5, secondary heating mechanism, the second inert gas conveying device (not shown);
3rd batch can 3, described 3rd batch can 3, for splendid attire initator, described 3rd batch can 3 is configured with the 3rd agitating device 6, the 3rd inert gas conveying device (not shown) and optionally the 3rd heater;
4th batch can 25, described monomer, described catalyst and described initator carry out being mixed into injecting glue raw material in described 4th batch can 25, described 4th batch can 25 are configured with the 4th agitating device 7, the 4th heater, the 4th inert gas conveying device (not shown);
Described first batch can 1 bottom is connected with described 4th batch can 25 by the first pipeline 30, and described first pipeline 30 is provided with the first metering device 21;
Described second batch can 2 bottom is connected with described 4th batch can 25 by the second pipeline 31, and described second pipeline 31 is provided with the second metering device 22;
Described 3rd batch can 3 bottom is connected with described 4th batch can 25 by the 3rd pipeline 32, and described 3rd pipeline 32 is provided with the 3rd metering device 23;
The bottom of described 4th batch can 25 arranges discharging opening, be connected with the 4th pipeline 33, described 4th pipeline 33 arranges discharging controlling element 28, open described discharging controlling element 28, described injecting glue raw material is injected in mould 27 through the 4th pipeline 33 of discharging opening and connection, and the volume of described 4th batch can 25 is greater than the volume that described mould 27 can hold injecting glue raw material.
In another preference, glue-injection machine of the present invention also comprises control system, by the first agitating device 4, first heater, the first inert gas conveying device, the second agitating device 5, secondary heating mechanism, the second inert gas conveying device, the 3rd agitating device 6, the 3rd inert gas conveying device, the 3rd heater, the 4th agitating device 7, the 4th heater, the 4th inert gas conveying device and discharging controlling element 28 described in described control system auto-control.
In another preference, glue-injection machine of the present invention is also provided with digital display console, the relevant parameter such as gas pressure in the temperature of real-time reflection material, temperature of charge, agitating device revolution, batch can, conservative control monomer melts (thawing), monomer, catalyst and mixes with initator and injecting glue time etc., farthest increases work efficiency.
(1) first batch can
Described first batch can 1 has good air-tightness, each point of attachment gas-tight.
Described first batch can 1 top is provided with the first inert gas entrance 13 and the first gas vent 14, described first inert gas entrance 13 is connected with described first inert gas conveying device by the first tracheae (not shown), inert gas is delivered to described first batch can 1 inner; Described first gas vent 14 is provided with the first gas vent valve.
Open described first inert gas conveying device, in described first batch can 1, carry inert gas by the first tracheae, the first inert gas entrance 13, the flow-control of inert gas is at 0.2 ~ 2L/min.Open described first gas vent valve, the air in the first batch can 1 is discharged by inert gas, ensures to be full of atmosphere of inert gases in the first batch can 1, prevent monomer in the first batch can 1 oxidized.
In another preference, described first inert gas conveying device comprises air feed equipment, supply air line, air inlet valve and gas outlet valve.
In another preference, described first inert gas entrance is connected with the air feed equipment of described first inert gas conveying device by the first tracheae.
In another preference, the air feed equipment of described first inert gas conveying device is compression High Purity Nitrogen gas cylinder, and carry high pure nitrogen (purity is equal to or higher than 99.999%) to described first batch can 1, gas flow is 0.2 ~ 2L/min.
Described first heater comprises the first temperature sensor 8 and the first heating jacket, described first batch can 1 top arranges the first temperature sensor entrance, it is inner that described first temperature sensor 8 is inserted into described first batch can 1 by described first temperature sensor entrance, for detecting described first batch can 1 internal temperature, described first heating jacket is placed in described first batch can 1 periphery, for heating described first batch can.
In another preference, described first heating jacket can adopt electrical heating or heat-conducting oil heating.
In another preference, described first heater heats described first batch can 1, makes the temperature of described monomer be 100-150 DEG C.
First agitating device can be any agitating device being applicable to this area, be preferably electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, and the monomer extending into described first batch can 1 inside is inner, described driver is arranged at the upper end of described shaft, be positioned at above described first batch can 1, open described driver, drive described shaft, paddle to rotate, described monomer is stirred, monomer feed liquid is heated evenly.
In another preference, the revolution of described electric mixing device shaft is adjustable.
In another preference, described first metering device 21 is measuring pump.Preferably, described measuring pump is gear wheel metering pump or piston type dosing pump.
(2) second batch cans
Described second batch can 2 has good air-tightness, each point of attachment gas-tight.
Described second batch can 2 top is provided with the second inert gas entrance 15 and the second gas vent 16, described second inert gas entrance 15 is connected with described second inert gas conveying device by the second tracheae (not shown), inert gas is delivered to described second batch can 2 inner; Described second gas vent 16 is provided with the second gas vent valve.
Open described second inert gas conveying device, in described second batch can 2, carry inert gas by the second tracheae, the second inert gas entrance 15, the flow-control of inert gas is at 0.2 ~ 2L/min.Open described second gas vent valve, the air in the second batch can 2 is discharged by inert gas, ensures to be full of atmosphere of inert gases in the second batch can 2, prevent catalyst in the second batch can 1 oxidized.
In another preference, described second inert gas conveying device comprises air feed equipment, supply air line, air inlet valve and gas outlet valve.
In another preference, described second inert gas entrance is connected with the air feed equipment of described second inert gas conveying device by the second tracheae.
In another preference, the air feed equipment of described second inert gas conveying device is compression High Purity Nitrogen gas cylinder, and carry high pure nitrogen (purity is equal to or higher than 99.999%) to described second batch can 2, gas flow is 0.2 ~ 2L/min.
Described second metering device 22 is measuring pump.Described measuring pump is used for metered catalyst, is preferably gear wheel metering pump or piston type dosing pump.
Described secondary heating mechanism comprises the second temperature sensor 9 and the second heating jacket, described second batch can 2 top arranges the second temperature sensor entrance, it is inner that described second temperature sensor 9 is inserted into described second batch can 2 by described second temperature sensor entrance, for detecting described second batch can 2 internal temperature, described second heating jacket is placed in described second batch can 2 periphery, for heating described second batch can 2.
In another preference, described second heating jacket adopts electrical heating or heat-conducting oil heating.
Described secondary heating mechanism heats described second batch can 2, makes the temperature of described catalyst be 100-150 DEG C
Second agitating device can be any agitating device being applicable to this area, be preferably electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, extend into the catalytic inner of described second batch can 2 inside, described driver is arranged at the upper end of described shaft, be positioned at above described second batch can 2, open described driver, described shaft, paddle is driven to rotate, described catalyst is stirred, catalyst feed liquid is heated evenly.
(3) the 3rd batch cans
Described 3rd batch can 3 has good air-tightness, each point of attachment gas-tight.
3rd batch can 3 top is provided with the 3rd inert gas entrance 17 and the 3rd gas vent 18, described 3rd inert gas entrance 18 is connected with described 3rd inert gas conveying device by the 3rd tracheae (not shown), inert gas is delivered to described 3rd batch can 3 inner; Described 3rd gas vent 18 is provided with the 3rd gas vent valve.
Open described 3rd inert gas conveying device, in described 3rd batch can 3, carry inert gas by the 3rd tracheae, the 3rd inert gas entrance 17, the flow-control of inert gas is at 0.2 ~ 2L/min.Open described 3rd gas vent valve, the air in the 3rd batch can 3 is discharged by inert gas, ensure to be full of atmosphere of inert gases in the 3rd batch can 3, prevent initator in the 3rd batch can 2 oxidized.
In another preference, described 3rd inert gas conveying device comprises air feed equipment, supply air line, air inlet valve and gas outlet valve.
In another preference, described 3rd inert gas entrance is connected with the air feed equipment of described 3rd inert gas conveying device by the 3rd tracheae.
In another preference, the air feed equipment of described 3rd inert gas conveying device is compression High Purity Nitrogen gas cylinder, and carry high pure nitrogen (purity is equal to or higher than 99.999%) to described 3rd batch can 3, gas flow is 0.2 ~ 2L/min.
3rd agitating device can be any agitating device being applicable to this area, be preferably electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, and the initator extending into described 3rd batch can 3 inside is inner, and described driver is arranged at the upper end of described shaft, be positioned at above described 3rd batch can 3, open described driver, drive described shaft, paddle to rotate, described initator is stirred.
In another preference, the revolution of described electric mixing device shaft is adjustable.
Described 3rd heater is optional, according to used initator, if desired heats it, and the 3rd batch can 3 configures the 3rd heater, if at room temperature initator is liquid, the 3rd batch can 3 can not configure the 3rd heater.In addition, as the 3rd batch can 3 is configured with the 3rd heater, if at room temperature initator is liquid, the 3rd heater can not be opened.When needing to heat initator, open the 3rd heater.
3rd heater comprises three-temperature sensor 10 and the 3rd heating jacket (not shown), described 3rd batch can 3 top arranges three-temperature sensor entrance, it is inner that described three-temperature sensor 10 is inserted into described 3rd batch can 3 by described three-temperature sensor entrance, for detecting described 3rd batch can 3 internal temperature, described 3rd heating jacket is placed in described 3rd batch can 3 periphery, for heating described 3rd batch can 3.
Described 3rd heating jacket can adopt electrical heating or heat-conducting oil heating.
In another preference, described 3rd heater heats described 3rd batch can 3, makes the temperature of described initator be 20-150 DEG C.
Described 3rd metering device 23 is measuring pump.Described measuring pump, for measuring initator, is preferably gear wheel metering pump or piston type dosing pump.
(4) the 4th batch cans
Described 4th batch can 25 has good air-tightness, each point of attachment gas-tight.
4th batch can 25 top is provided with the 4th inert gas entrance 19 and the 4th gas vent 20, described 4th inert gas entrance 19 is connected with described 4th inert gas conveying device by the 4th tracheae (not shown), inert gas is delivered to described 4th batch can 25 inner; Described 4th gas vent 20 is provided with the 4th gas vent valve.
Open described 4th inert gas conveying device, in described 4th batch can 25, carry inert gas by the 4th tracheae, the 4th inert gas entrance 19, the flow-control of inert gas is at 0.2 ~ 2L/min.Open described 4th gas vent valve, the air in the 4th batch can 25 is discharged by inert gas, ensure to be full of atmosphere of inert gases in the 4th batch can 25, prevent injecting glue raw material in the 4th batch can 25 oxidized.
In another preference, described 4th inert gas conveying device comprises air feed equipment, supply air line, air inlet valve and gas outlet valve.
In another preference, described 4th inert gas entrance is connected with the air feed equipment of described 4th inert gas conveying device by the 4th tracheae.
In another preference, the air feed equipment of described 4th inert gas conveying device is compression High Purity Nitrogen gas cylinder, and carry high pure nitrogen (purity is equal to or higher than 99.999%) to described 4th batch can 25, gas flow is 0.2 ~ 2L/min.
Described 4th heater comprises the 4th temperature sensor 11 and the 4th heating jacket (not shown), described 4th batch can 25 top arranges the 4th temperature sensor entrance, it is inner that described 4th temperature sensor 11 is inserted into described 4th batch can 25 by described 4th temperature sensor entrance, for detecting described 4th batch can 25 internal temperature, described 4th heating jacket is placed in described 4th batch can 25 periphery, for heating described 4th batch can 25.
Described 4th heating jacket can adopt electrical heating or heat-conducting oil heating.
In another preference, described 4th heater heats described 4th batch can 3, makes the temperature of described injecting glue raw material be 100-150 DEG C.
4th agitating device can be any agitating device being applicable to this area, be preferably electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, and the injecting glue raw material extending into described 4th batch can 25 inside is inner, and described driver is arranged at the upper end of described shaft, be positioned at above described 4th batch can 25, open described driver, drive described shaft, paddle to rotate, described injecting glue raw material is stirred.
In another preference, the revolution of described electric mixing device shaft is adjustable.
In another preference, described discharging controlling element 28 is pump, under the effect of pump, the injecting glue raw material in described 4th batch can 25 is drawn through described 4th pipeline 33 and is injected in mould 27.
In another preference, described pump is gear pump or piston pump.
In another preference, described 4th batch can 25 is also configured with pressure sensor 12, for detecting the air pressure of described 4th batch can 25 inside.
In another preference, described discharging controlling element 28 is discharge valve.During injecting glue, close the 4th gas outlet valve, inert gas is passed into continuously from the 4th inert gas entrance 19, increase the gas pressure of the 4th batch can 25, open discharge valve, described injecting glue raw material is extruded described 4th batch can 25 and carries out injecting glue by gas, and when adopting gas to extrude described injecting glue raw material, in described 4th batch can 25, pressure preferably maintains 0.1-0.5MPa.
The use of glue-injection machine
Monomer, catalyst and initator is dropped into respectively in the first batch can 1, second batch can 2 and the 3rd batch can 3.
Open described first inert gas conveying device, in described first batch can 1, carry inert gas by the first tracheae, the first inert gas entrance 13, the flow-control of inert gas is at 0.2 ~ 2L/min.Open described first gas vent valve, the air in the first batch can 1 is discharged by inert gas, ensures to be full of atmosphere of inert gases in the first batch can 1, prevent monomer in the first batch can 1 oxidized.
Open described second inert gas conveying device, in described second batch can 2, carry inert gas by the second tracheae, the second inert gas entrance 15, the flow-control of inert gas is at 0.2 ~ 2L/min.Open described second gas vent valve, the air in the second batch can 2 is discharged by inert gas, ensures to be full of atmosphere of inert gases in the second batch can 2, prevent catalyst in the second batch can 2 oxidized.
Open described 3rd inert gas conveying device, in described 3rd batch can 3, carry inert gas by the 3rd tracheae, the 3rd inert gas entrance 17, the flow-control of inert gas is at 0.2 ~ 2L/min.Open described 3rd gas vent valve, the air in the 3rd batch can 3 is discharged by inert gas, ensure to be full of atmosphere of inert gases in the 3rd batch can 3, prevent initator in the 3rd batch can 2 oxidized.
Open the first agitating device, the second agitating device and the 3rd agitating device respectively, respectively the catalyst in the monomer of the first batch can 1 inside, the second batch can 2 and the initator in the 3rd batch can 3 are stirred.Open first heater and secondary heating mechanism respectively, by the Unit heating of the first batch can 1 inside to 100-150 DEG C, the catalyst of the second batch can 2 inside is heated to 100-150 DEG C.If initator needs heating, open the 3rd heater, 20-150 DEG C is heated to be to initator.
Treat that the inner monomer of the first batch can 1 melts completely, by the first metering device 21 predetermined amounts, monomer is injected into the 4th batch can 25 by the first pipeline 30, by the second metering device 22 predetermined amounts, catalyst is injected into the 4th batch can 25 by the second pipeline 31 simultaneously, and by the 3rd metering device 23 predetermined amounts, initator is injected into the 4th batch can 25 by the 3rd pipeline 32.In the present invention, with the total mole number of monomer, catalyst and initator for benchmark, the molar percentage adding catalyst is 0.5 ~ 5.0mol%, and the molar percentage of initator is 0.5 ~ 5.0mol%, and surplus is monomer.
Open described 4th inert gas conveying device, in described 4th batch can 25, carry inert gas by the 4th tracheae, the 4th inert gas entrance 19, the flow-control of inert gas is at 0.2 ~ 2L/min.Open described 4th gas vent valve, the air in the 4th batch can 25 is discharged by inert gas, ensure to be full of atmosphere of inert gases in the 4th batch can 25, prevent injecting glue raw material in the 4th batch can 2 oxidized.
Open the 4th agitating device, the monomer of the 4th batch can 25 inside, catalyst and initator are stirred, mixes and become injecting glue raw material, stop stirring, leave standstill 1 ~ 3 minute.
In a preferred embodiment, close the 4th gas outlet valve, pass into inert gas continuously from the 4th inert gas entrance 19, increase the gas pressure in the 4th batch can 25, in described 4th batch can, pressure preferably maintains 0.1-0.5MPa.Open discharge valve, described injecting glue raw material is extruded described 4th batch can 25 and carry out injecting glue in mould 27 by inert gas.
In another preferred embodiment, discharging controlling element 28 is pump, the injecting glue raw material in described 4th batch can 25 is drawn through described 4th pipeline 33 under the effect of pump and is injected in mould 28 and carries out injecting glue.
In the present invention, described monomer is caprolactam.Described catalyst includes but not limited to sodium caprolactam or caprolactam magnesium bromide.Described initator includes but not limited to hexa-methylene-1,6-bis-formyl caprolactam, toluene di-isocyanate(TDI) (TDI) or 4,4-methyl diphenylene diisocyanate (MDI).
In the present invention, mould has no particular limits, and the various moulds that can be used in this area all may be used in the present invention.During use, the temperature of mould is preferably 140-190 DEG C.
Preferably, described mould is built-in with continuous fiber.Preferred continuous fiber is carbon fiber, glass fibre, aramid fiber, polypropylene (PP) fiber, polyamide (PA) fiber, polyethylene (PE) fiber, the inorganic or organic fibers such as polyester (PET/PBT) fiber.
In another preference, described continuous fiber exists in the form of a fabric.
Adopt glue-injection machine of the present invention, the nylon 6 resin of continuous lod can be obtained.
The above-mentioned feature that the present invention mentions, or the feature that embodiment is mentioned can be combined.All features that this case description discloses can with any composition forms and use, each feature disclosed in description, anyly can provide identical, alternative characteristics that is impartial or similar object replaces.Therefore apart from special instruction, the feature disclosed is only general example that is impartial or similar features.
Usefulness of the present invention is:
(1) the invention provides a kind of novel automatic glue injection machine.
(2) glue-injection machine of the present invention is automatically by predetermined ratio configuration monomer, catalyst and initator, and accuracy rate is high.
(3) glue-injection machine of the present invention can continuous glue injection, for batch production, improves injecting glue efficiency.
(4) glue-injection machine of the present invention is specially adapted to the injection process of fibre-reinforced thermoplastic composite.
(5) glue-injection machine of the present invention can prepare the product of different size.
The all documents mentioned in the present invention are quoted as a reference all in this application, are just quoted separately as a reference as each section of document.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after having read above-mentioned instruction content of the present invention.
Claims (10)
1. a glue-injection machine, is characterized in that, described glue-injection machine comprises:
First batch can, described first batch can is used for splendid attire monomer, described first batch can is configured with the first agitating device, first heater, the first inert gas conveying device;
Second batch can, described second batch can is used for holding catalyst, described second batch can is configured with the second agitating device, secondary heating mechanism, the second inert gas conveying device;
3rd batch can, described 3rd batch can is used for splendid attire initator, described 3rd batch can is configured with the 3rd agitating device, the 3rd inert gas conveying device and optionally the 3rd heater;
4th batch can, described monomer, described catalyst and described initator carry out being mixed into injecting glue raw material in described 4th batch can, described 4th batch can are configured with the 4th agitating device, the 4th heater, the 4th inert gas conveying device;
Described first batch can bottom is connected with described 4th batch can by the first pipeline, and described first pipeline is provided with the first metering device;
Described second batch can bottom is connected with described 4th batch can by the second pipeline, and described second pipeline is provided with the second metering device;
Described 3rd batch can bottom is connected with described 4th batch can by the 3rd pipeline, and described 3rd pipeline is provided with the 3rd metering device;
Described 4th batch can top is provided with the 4th inert gas entrance and the 4th gas vent, and described 4th inert gas entrance is connected with described 4th inert gas conveying device by the 4th tracheae, inert gas is delivered to described 4th batch can inner; Described 4th gas vent is provided with the 4th gas vent valve;
The bottom of described 4th batch can arranges discharging opening, be connected with the 4th pipeline, described 4th pipeline arranges discharging controlling element, open described discharging controlling element, described injecting glue raw material is injected in mould through the 4th pipeline of discharging opening and connection, and the volume of described 4th batch can is greater than the volume that described mould can hold injecting glue raw material
Wherein, described discharging controlling element is discharge valve, closes the 4th gas vent valve, increase the gas pressure in the 4th batch can, open described discharge valve, described injecting glue raw material is extruded described 4th batch can and carries out injecting glue, in described 4th batch can, pressure maintains 0.1-0.5MPa; Or described discharging controlling element is pump, under the effect of pump, the injecting glue raw material in described 4th batch can is drawn through described 4th pipeline and is injected in mould.
2. glue-injection machine as claimed in claim 1, it is characterized in that, described first heater comprises the first temperature sensor and the first heating jacket, described first batch can top arranges the first temperature sensor entrance, it is inner that described first temperature sensor is inserted into described first batch can by described first temperature sensor entrance, for detecting described first batch can internal temperature, described first heating jacket is placed in described first batch can periphery, for heating described first batch can;
Described first batch can top is provided with the first inert gas entrance and the first gas vent, and described first inert gas entrance is connected with described first inert gas conveying device by the first tracheae, inert gas is delivered to described first batch can inner; Described first gas vent is provided with the first gas vent valve;
First agitating device is electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, the monomer extending into described first batch can inside is inner, described driver is arranged at the upper end of described shaft, is positioned at above described first batch can, opens described driver, drive described shaft, paddle to rotate, described monomer is stirred.
3. glue-injection machine as claimed in claim 1, it is characterized in that, described secondary heating mechanism comprises the second temperature sensor and the second heating jacket, described second batch can top arranges the second temperature sensor entrance, it is inner that described second temperature sensor is inserted into described second batch can by described second temperature sensor entrance, for detecting described second batch can internal temperature, described second heating jacket is placed in described second batch can periphery, for heating described second batch can;
Described second batch can top is provided with the second inert gas entrance and the second gas vent, and described second inert gas entrance is connected with described second inert gas conveying device by the second tracheae, inert gas is delivered to described second batch can inner; Described second gas vent is provided with the second gas vent valve;
Second agitating device is electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, extend into the catalytic inner of described second batch can inside, described driver is arranged at the upper end of described shaft, is positioned at above described second batch can, opens described driver, drive described shaft, paddle to rotate, described catalyst is stirred.
4. glue-injection machine as claimed in claim 1, it is characterized in that, described 3rd heater comprises three-temperature sensor and the 3rd heating jacket, described 3rd batch can top arranges three-temperature sensor entrance, it is inner that described three-temperature sensor is inserted into described 3rd batch can by described three-temperature sensor entrance, for detecting described 3rd batch can internal temperature, described 3rd heating jacket is placed in described 3rd batch can periphery, for heating described 3rd batch can;
Described 3rd batch can top is provided with the 3rd inert gas entrance and the 3rd gas vent, and described 3rd inert gas entrance is connected with described 3rd inert gas conveying device by the 3rd tracheae, inert gas is delivered to described 3rd batch can inner; Described 3rd gas vent is provided with the 3rd gas vent valve; And/or
3rd agitating device is electric mixing device, comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, the initator extending into described 3rd batch can inside is inner, described driver is arranged at the upper end of described shaft, is positioned at above described 3rd batch can, opens described driver, drive described shaft, paddle to rotate, described initator is stirred.
5. glue-injection machine as claimed in claim 1, it is characterized in that, described 4th heater comprises the 4th temperature sensor and the 4th heating jacket, described 4th batch can top arranges the 4th temperature sensor entrance, it is inner that described 4th temperature sensor is inserted into described 4th batch can by described 4th temperature sensor entrance, for detecting described 4th batch can internal temperature, described 4th heating jacket is placed in described 4th batch can periphery, for heating described 4th batch can.
6. glue-injection machine as claimed in claim 1, it is characterized in that, described 4th agitating device is electric mixing device, and comprise paddle, shaft, driver, described paddle is arranged at the lower end of described shaft, the injecting glue raw material extending into described 4th batch can inside is inner, described driver is arranged at the upper end of described shaft, is positioned at above described 4th batch can, opens described driver, drive described shaft, paddle to rotate, described injecting glue raw material is stirred.
7. glue-injection machine as claimed in claim 1, it is characterized in that, described discharging controlling element is pump, and described pump is gear pump or piston pump.
8. glue-injection machine as claimed in claim 1, is characterized in that,
Described first metering device is measuring pump;
Described second metering device is measuring pump;
Described 3rd metering device is measuring pump.
9. glue-injection machine as claimed in claim 1, it is characterized in that, described glue-injection machine also has following one or more feature:
I () described first heater heats described first batch can, make the temperature of described monomer be 100-150 DEG C;
(ii) described 4th heater heats described 4th batch can, makes the temperature of described injecting glue raw material be 100-150 DEG C;
(iii) described first inert gas conveying device, the second inert gas conveying device, the 3rd inert gas conveying device, the 4th inert gas conveying device include compression High Purity Nitrogen gas cylinder, respectively to described first batch can, the second batch can, the 3rd batch can, the 4th batch can conveying high pure nitrogen, gas flow is 0.2 ~ 2L/min independently of one another;
(iv) temperature of described mould is 140-190 DEG C;
V () described secondary heating mechanism heats described second batch can, make the temperature of described catalyst be 100-150 DEG C;
(vi) described 3rd heater heats described 3rd batch can, makes the temperature of described initator be 20-150 DEG C.
10. glue-injection machine as claimed in claim 1, it is characterized in that, described mould is built-in with continuous fiber.
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| CN201210479911.8A CN102922751B (en) | 2012-11-21 | 2012-11-21 | Resin transfer molding glue injection machine for continuous fiber reinforced nylon 6 composite material |
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| CN106738404B (en) * | 2016-11-30 | 2018-09-14 | 芜湖立创包装有限公司 | Charging process for plastics |
| CN107263889B (en) * | 2017-06-19 | 2023-02-03 | 新乡市景龙复合材料有限公司 | Glue injection machine and process for producing unsaturated polyester resin glass fiber reinforced plastics |
| CN108948345A (en) * | 2018-06-25 | 2018-12-07 | 长沙五犇新材料科技有限公司 | Fibre reinforced successive reaction forms nylon composite materials and its preparation method and application |
| CN109065830A (en) * | 2018-09-18 | 2018-12-21 | 博众精工科技股份有限公司 | Melt bottler placer feeding system |
| CN109731523A (en) * | 2019-02-27 | 2019-05-10 | 贵州振华华联电子有限公司 | One kind three matches adhesive dispenser than part |
| CN110184662B (en) * | 2019-05-29 | 2021-06-22 | 中国人民解放军国防科技大学 | Continuous feeding device and method for ceramic precursor polymer melt for melt spinning |
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