CN101391467B - Resin material production device - Google Patents
Resin material production device Download PDFInfo
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- CN101391467B CN101391467B CN2008101613178A CN200810161317A CN101391467B CN 101391467 B CN101391467 B CN 101391467B CN 2008101613178 A CN2008101613178 A CN 2008101613178A CN 200810161317 A CN200810161317 A CN 200810161317A CN 101391467 B CN101391467 B CN 101391467B
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Abstract
The invention provides a device for producing resin material which comprises a material blending chamber (2), an internal path (122) and a communication path (108), and a control valve (9). The communication path (108) is used for communicating a side opening (108a) of the material blending chamber with a pigment case and supplying pigment to the material blending chamber (2). The control valve (9) is used to open the side opening (108a) of the material blending chamber when pigment is supplied to the material blending chamber (2), and close the side opening (108a) of the material blending chamber when the pigment is not supplied to the material blending chamber (2). A diameter reducing path (153) of a introduction path (151) is positioned on the peripheral wall of the communication path (108).When discharge operation is carried out to move the pigment left in the communication path (108) to the internal path (122) to discharge the pigment, a one-way valve (160) is used to open the introduction path (151), and the pressure (P2) in the introduction path (151) is higher than the pressure (P1) of the basal end portion of the internal path (122).
Description
Technical field
The present invention relates to a kind of resin material production device, produce resin material through mixing multiple different materials.
Background technology
Current have a kind of like this resin material production device, in JP-A-6-182759, described the instance of this device.Fig. 6 illustrates the device cross section structure that is used as resin material production device usually, comprises the batch mixing head of describing among the JP-A-6-182759.
As shown in Figure 6, cylindrical shape batch mixing chamber 2 is formed in the batch mixing head body 1 that constitutes the batch mixing head.In batch mixing head body 1, form two main burner jack 3a and 3b and a pilot jet jack 4, make the central shaft C of these jacks perpendicular to batch mixing chamber 2. Jack 3a, 3b and 4 diapire 5a, 5b and 6 are positioned near the batch mixing chamber 2.In diapire 5a, 5b and 6, form main communication paths 7a and 7b and auxiliary communication path 8 respectively, each communication paths is communicated with each self- corresponding jack 3a, 3b and 4 with batch mixing chamber 2.
In addition, bulk supply nozzle 11a and 11b are that batch mixing chamber 2 provides polyol component material and isocyanate component material, and bulk supply nozzle 11a and 11b are inserted respectively in main burner jack 3a and the 3b.In bulk supply nozzle 11a and 11b, form main internal path 12a and 12b, each main internal path is communicated with corresponding main communication paths 7a, 7b with corresponding storage bin 31a, the 31b of storage material.In addition, auxiliary feed nozzle 21 is used to batch mixing chamber 2 provides pigment, and auxiliary feed nozzle 21 inserts in the pilot jet jack 4.In auxiliary feed nozzle 21, form auxiliary internal path 22, be used for auxiliary communication path 8 is communicated with the paint box 41 that stores pigment.In addition, in batch mixing chamber 2, be provided with control valve 9, be used between the connected sum in each main communication paths 7a, 7b and auxiliary communication path 8 and batch mixing chamber 2 breaks off, switching, control valve 9 be set to can be in the batch mixing chamber direction of 2 central shaft C move back and forth.
Adopt this structure, when producing resin material,, the opening that is positioned at batch mixing chamber 2 one sides in main communication paths 7a, 7b and the auxiliary communication path 8 is opened through control valve 9.Thereby, material (for example, polyol component material, isocyanate component material and pigment) is supplied with batch mixing chamber 2.Like this, through with the material mixing in the batch mixing chamber 2, produce colored polyurethane resin material.Incidentally, when the supply of polyurethane resin material is accomplished,, the opening that is positioned at batch mixing chamber 2 one sides in main communication paths 7a, 7b and the auxiliary communication path 8 is closed through control valve 9.By this, each material can not flow out into batch mixing chamber 2 from corresponding main communication paths 7a, 7b and auxiliary communication path 8.
Yet; The resin material production device of this routine so purpose of configuration is: when changing currently used pigment into different pigment, will be installed to removably and assist the paint box 41 of feed nozzle 21 to be replaced by another paint box that stores another look pigment.Yet, when promptly using another paint box to replace current paint box 41, change before the paint box 41 employed pigment and still stay in auxiliary internal path 22 and the auxiliary communication path 8 (in the back literary composition, these two kinds of paths 22 and 8 are commonly referred to as " forehearth ").So employed a large amount of pigment are sneaked into and are changed in first polyurethane resin material of producing after the paint box 41 before the replacing paint box 41.As a result, changing first resin material of producing after the paint box 41 is substandard products.So, caused the waste of production of resins material and production of resins process.
Incidentally, this problem not only occurs in the resin material production device that uses polyol component material, isocyanate component material and pigment production polyurethane resin material.Basically, for other resin material production device that uses the other materials production resin material outside the above-mentioned material, this problem is ubiquitous.
Summary of the invention
The present invention is used to address the above problem.The purpose of this invention is to provide a kind of resin production plant; When the material of current use is replaced by the material of different component, can prevent effectively that the material in the forehearth of residuing in of current use from flowing into the batch mixing chamber and sneak in the component that is different from present material that has changed.
The device that addresses the above problem is described below, and the operation of this device and advantage.
According to the present invention; A kind of resin material production device (hereinafter referred to as " first kind of resin material production device of the present invention ") is provided, and it comprises: the batch mixing chamber, and this batch mixing chamber is configured to; Through mixing second material that first material and composition are different from first material, produce resin material; Forehearth is constructed with leading section and base end part, and side opening portion is connected this leading section towards the batch mixing chamber in batch mixing chamber with opening, and this base end part connects with the storage bin that stores first material, and feeder channel is configured to first material is supplied with the batch mixing chamber; And controlling organization, when first material is supplied in the batch mixing chamber, controlling organization is opened batch mixing chamber side opening portion, and not when first material is supplied in the batch mixing chamber, controlling organization cuts out batch mixing chamber side opening portion.The main points of first kind of resin material production device of the present invention are: first kind of resin production plant comprises pressure adjustmenting mechanism; This pressure adjustmenting mechanism is configured to comprise the importing path; Import passage opening near the part place that is positioned on the perisporium of forehearth the batch mixing chamber, when carrying out emissions operation, promptly; When first material that makes first material that remains in the forehearth move and will move to the forehearth base end side is discharged; Pressure adjustmenting mechanism is opened the importing path, makes to compare with the pressure of forehearth base end side, and the pressure that imports in the path is higher.
First kind of resin material production device according to the present invention; When first material of current use changes the material of different component into; Thereby the base end side that need make first material that remains in the forehearth move on to forehearth is discharged first material; In this case, pressure adjustmenting mechanism will import path and open.And, make the pressure of the pressure ratio forehearth base end side that imports path high.Therefore, between importing path and forehearth base end side, produce pressure differential.Under action of pressure, first material that remains in the forehearth moves to the base end side of forehearth with the fluid of introducing from the importing path.Like this, can discharge the first mobile material.Therefore, when first material is replaced by material different, can stop effectively more to remain in first material outflow in the forehearth and flow into the batch mixing chamber before the conversion materials, thus the material mixing after avoiding first material and changing.
The main points of the embodiment of first kind of resin material production device of the present invention (second kind of resin material production device of the present invention hereinafter referred to as) are; Pressure adjustmenting mechanism comprises: aspirator, aspirator are used for remaining in first material in the forehearth from the sucking-off of forehearth base end side; And check valve, be arranged in the importing path, flow into forehearth to allow fluid from importing path, and stop fluid to import path from the forehearth inflow.
Second kind of resin production plant according to the present invention, through starting aspirator, via forehearth with first material when the forehearth base end side aspirates, one-way valve opens.In addition, fluid flows into forehearth via importing path.So first material that remains in the forehearth moves to the forehearth base end side, thereby discharges first material.And check valve stops fluid from forehearth moving to the importing path.So, can stop fluid that flows into forehearth and first material of staying in the forehearth to flow back to the importing path.
The main points of the embodiment of first kind or second kind resin material production device of the present invention (the third resin material production device of the present invention hereinafter referred to as) are: pressure adjustmenting mechanism also comprises pump, and pump is configured to via importing path pressurized with fluid sent into forehearth.Adopt this structure, send in pump pressure under the pressure effect of fluid, first material that remains in the forehearth moves to the forehearth base end side, thereby discharges first material.
More particularly; The structure of first kind of embodiment to one of the third resin material production device of the present invention (the 4th kind of resin material production device of the present invention hereinafter referred to as) does; Forehearth comprises: be formed on the internal path in the feed nozzle, this feed nozzle is installed on the body of resin material production device with removably; And being formed on the communication paths in resin material production device body and the batch mixing chamber, communication paths links to each other batch mixing chamber side opening portion with internal path, and, import path and link to each other with communication paths.In this case, first material that remains in the communication paths moves to feed nozzle interior path, subsequently, takes off the feed nozzle from the resin material production device body.Therefore, compare with the situation that all first materials in the communication paths (being forehearth) are discharged with remaining in internal path, the amount that first material will be discharged reduces.So emissions operation can be accomplished fast.
The main points of the embodiment of the 4th kind of resin material production device of the present invention (the 5th kind of resin material production device of the present invention hereinafter referred to as) are: internal path is configured to be formed with restriction at the leading section of internal path; Compare with other parts of internal path, the sectional area of restriction is less.
In the situation of the 4th kind of resin material production device of the present invention, that is, resin production plant is configured to; Make first material that remains in the communication paths move, then, take off the feed nozzle from the resin material production device body to the internal path of feed nozzle; At this moment; Though the amount that first material flows out is few, worry still that when pulling down the feed nozzle first material in the internal path can flow into communication paths.
About this respect, adopt said structure, at the leading section formation restriction of internal path, to compare with other parts of internal path, the sectional area of restriction is less.So when taking off the feed nozzle, first material in the internal path flows out into communication paths, in this case, restriction plays the effect that flow passage stops.So, when taking off the feed nozzle, can prevent that first material in the internal path from flowing out into communication paths.
As stated; When the material with current use is changed to the material of heterogeneity; Resin material production device of the present invention can stop the currently used material that remains in the forehearth to flow to the batch mixing chamber effectively, thereby avoids these materials and heterogeneity material mixing after changing.
Description of drawings
Fig. 1 is a partial sectional view, and the partial structurtes according to the resin material production device of the embodiment of the invention are shown.
Fig. 2 A and 2B are the cutaway views that illustrates according to the check valve of this embodiment.Fig. 2 A is the cutaway view that the check valve cross section structure of closed condition is shown.Fig. 2 B is the cutaway view that the check valve cross section structure of open mode is shown.
Fig. 3 is the sketch map of the pressure adjustmenting mechanism operation of this embodiment of explanation.
Fig. 4 is the operation chart of the pressure adjustmenting mechanism variant of this embodiment of explanation.
Fig. 5 is the operation chart of the another kind of variant of pressure adjustmenting mechanism of this embodiment of explanation.
Fig. 6 is the partial sectional view that the partial structurtes of conventional resin material production device are shown.
The specific embodiment
Below, referring to figs. 1 through Fig. 3 the embodiment according to resin material production device of the present invention is described.
Fig. 1 is a partial sectional view, and the partial cross section's structure according to the resin material production device of the embodiment of the invention is shown.Further, through polyol component material, isocyanate component material and pigment are sucked the batch mixing chamber, and these materials are mixed in the batch mixing chamber, produce the polyurethane resin material according to the resin material production device of the embodiment of the invention.Supply structure and structural similarity shown in Figure 6 partly for batch mixing chamber supply polyol component material and isocyanate component material.So, omit the structure of this part and describe.Below, the structure that pigment is infeeded the supply part in batch mixing chamber is described, and, when pigment is changed, make the structure of the discharge section of the pigment discharge of changing in pigment pigment that uses before and the forehearth that remains in supply pigment.
As shown in Figure 1, in batch mixing head body 101, form cylindrical shape batch mixing chamber 2 and cylindrical nozzle jack 104 as the resin material production device body.Nozzle receptacle 104 comprises major diameter part 104a and small diameter portion 104b; Major diameter part 104a opening is in the outer wall of batch mixing head body 101; Small diameter portion 104b is positioned at batch mixing chamber 2 sides, and the diameter of small diameter portion 104b is less than the diameter of major diameter part 104a.Nozzle receptacle 104 forms, and makes the central shaft C inclination predetermined angle α of its central shaft E with respect to batch mixing chamber 2.And the diapire 106 of nozzle receptacle 104 is arranged near the batch mixing chamber 2.In diapire 106, form cylindrical shape communication paths 108, this cylindrical shape communication paths 108 links to each other with the 108a of batch mixing chamber side opening portion that is opened on batch mixing chamber 2, and batch mixing chamber 2 is communicated with nozzle receptacle 104.
Feed nozzle 121 is used to batch mixing chamber 2 supply pigment, and inserts nozzle receptacle 104 with removably.In feed nozzle 121, be formed with internal path 122.The leading section 123 of internal path 122 is connected with communication paths 108.In addition, and more compare than leading section 123 in the internal path 122 near the inside diameter D 2 of the part of base end side, that the inside diameter D 1 of the leading section 123 of internal path 122 is set at is less (D1 D2).In addition, the inside diameter D 1 of leading section 123 is arranged to equate (D1=D3) with the internal diameter of communication paths 108.Incidentally, the inside diameter D 1 with the leading section 123 of internal path 122 is set at the inside diameter D 2 less than other parts in the internal path 122.So the leading section 123 of internal path 122 act as restriction.On the whole outer peripheral face of feed nozzle 121 leading sections, form cannelure 126, be used for fitting tight part 71.Incidentally, when producing the polyurethane resin material, the base end part 124 of internal path 122 links to each other with the paint box (not shown) via connector 125.Further, control valve 9 is set in batch mixing chamber 2, control valve 9 moves back and forth in the central shaft C in batch mixing chamber 2 direction, as controlling organization, is used between the connected sum in communication paths 108 and batch mixing chamber 2 cuts off, switching.
According to this structure, when producing the polyurethane resin material, control valve 9 moves to the direction of arrow T shown in Figure 1, to open the 108a of batch mixing chamber side opening portion.Thereby pigment is supplied with batch mixing chamber 2.Then, polyol component material and isocyanate component material mix in batch mixing chamber 2.Like this, obtain colored polyurethane resin material.Incidentally, when the supply of polyurethane resin material was accomplished, control valve 9 moved to the direction of arrow S shown in Figure 1, to close the 108a of batch mixing chamber side opening portion.Take this, do not have pigment to flow out and get into batch mixing chamber 2 from communication paths 108.
In addition, when the pigment that uses at present in the resin material production device is replaced by not homochromy pigment, will be replaced by with the paint box that removably is arranged at feed nozzle 121 and store not another paint box of homochromy pigment.Yet,, change the pigment that uses before the paint box and still remain in internal path 122 and the communication paths 108 even paint box is changed.So, change a large amount of pigment that use before the paint box and sneak in first polyurethane resin material of producing after the replacing paint box.So, following point appears.That is, changing first polyurethane resin material of producing after the paint box is substandard products.Cause the waste of production of resins material and production of resins process.
So,, prevent the problems referred to above in device through pressure adjustmenting mechanism as mentioned below 150 is set according to present embodiment.
That is, as shown in Figure 1, in batch mixing head body 101, form the undergauge path 153 of opening towards communication paths 108.In addition, in batch mixing head body 101, form jack 152 and tapered runner 154, check valve 160 and limited part 169 (hereinafter description) are inserted jack 152, tapered runner 154 has conical by its shape, and jack 152 is linked to each other with undergauge path 153.Incidentally, towards above-mentioned undergauge path 153, the diameter of tapered runner 154 reduces gradually.With the jack 152 in the cylindrical box that constitutes check valve 160 161 these parts of insertion.In addition, limited part 169 is screwed in the jack 152, be used to limit casing 161 it can not outwards be moved.
Below, with reference to the cutaway view shown in Fig. 2 A and Fig. 2 B, describe the structure of check valve 160 in detail.Fig. 2 A illustrates the cross section structure of the check valve 160 that is in the valve closed condition.Fig. 2 B illustrates the cross section structure of the check valve 160 that is in the valve open mode.
Shown in Fig. 2 A, valve seat 163 embeds the medial end 162 of casing 161.Cylindrical shape block 164 is arranged on the outside end face of valve seat 163, is used for piston 167 (hereinafter will be described) limited it can not be moved to the inside.Incidentally, in this case, valve seat 163 is formed by independent parts respectively with block 164.Yet valve seat 163 also can be integrally formed each other with block 164.
Plate-like valve member 165 is arranged in the tapered runner 154.Via the axle 166 that passes valve seat 163 and block 164, valve member 165 links to each other with disk-shaped piston 167 in being arranged at casing 161.In piston 167, form a plurality of intercommunicating pore 167a, intercommunicating pore 167a is interconnected the inside and outside of piston 167.In addition, the spring 168 that is used for piston 167 is inserted between the inner side end of outside end face and piston 167 of valve seat 163.
The inboard of the intercommunicating pore 167a of the inboard of undergauge path 153, tapered runner 154, valve seat 163, block 164 inboards, piston 167, the inboard of casing 161 and limited part 169 constitutes importing path 151; Importing path 151 is communicated with the outside of batch mixing head body 101 with communication paths 108, thereby air is imported communication paths 108.In addition, casing 161, valve seat 163, block 164, valve member 165, axle 166, piston 167 and spring 168 constitute check valve 160.
In check valve 160; When the thrust of spring 168 is shifted to the power of batch mixing head body 101 inboards greater than valve member 165, axle 166 and piston 167; Shown in Fig. 2 A, valve member 165 leans the inner side end of valve seat 163, thereby stops the inboard of casing 161 to communicate with tapered runner 154.Thereby, stop pigment to flow out into and import path 151 from communication paths 108.
On the other hand; When valve member 165, axle 166 and piston 167 were shifted to the inboard power of batch mixing head body 101 greater than the thrust of spring 168, shown in Fig. 2 B, valve member 165 moved with the inner side end of valve seat 163 and separates; Thereby casing 161 inboards are communicated with tapered runner 154.Thereby, allow air to flow into communication paths 108 from importing path 151.
The operation of pressure adjustmenting mechanism 150 is described with reference to Fig. 3 below.Incidentally, Fig. 3 is the sketch map of explanation pressure adjustmenting mechanism 150 operations.
Through starting aspirator 170; When remaining in pigment in internal path 122 and the communication paths 108 via internal path 122 sucking-offs; As shown in Figure 3, the pressure P 1 of internal path 122 and reduce by the pressure P 2 of communication paths 108 and 153 component parts of undergauge path.Yet when pressure P 2 reduced, check valve 160 was opened.In addition, air flows into communication paths 108 through undergauge path 153, with the minimizing of compensatory pressure P2.So the pressure P 1 of internal path 122 reduces, therefore, the pressure of communication paths 108 and 153 component parts of undergauge path is greater than pressure P 1.Thereby, between the base end side of internal path 122 part and undergauge path 153, produce pressure differential (P1 < P2).Then, under action of pressure, the pigment that remains in the communication paths 108 moves to internal path 122 together with the air of introducing from undergauge path 153.In addition, pigment and air the mobile prevention that receives check valve 160 from communication paths 108 to undergauge path 153.So the air that flows into communication paths 108 can not be back to importing path 151 with the pigment of staying in the communication paths 108.
Resin material production device according to the above embodiment of the present invention can have hereinafter and describe the advantage of enumerating.
When (1) carrying out emissions operation, that is, move and will stay pigment in the communication paths 108 and discharge the time, undergauge path 153 (opening is on the perisporium of communication paths 108) is opened to internal path 122 through making pigment.In addition, compare with the pressure P 1 of internal path 122 base end sides part, the pressure P 2 of undergauge path 153 is set to higher.Thereby, partly and between the undergauge path 153 produce pressure differential at the base end side of internal path 122.Under this action of pressure, the pigment that remains in the communication paths 108 flows into internal path 122 with the air of introducing from importing path 151.Thereby pigment can be discharged from communication paths 108.Therefore; With current when using pigment to be replaced by another not homochromy pigment; The pigment that replacing pigment uses before remains in the communication paths 108, and present embodiment can prevent effectively that part pigment flows into batch mixing chamber 2 here, thereby anti-part pigment is here sneaked among the replacing pigment material afterwards.
(2) resin material production device according to present embodiment comprises: aspirator 170, and configuration aspirator 170, being used for internally, the base end side absorption of path 122 remains in the pigment in the communication paths 108; And check valve 160, check valve 160 is arranged in the importing path 151, allows to flow into communication paths 108 from the air that imports path 151, and stops pigment to flow out into importing path 151 from communication paths 108.So when the base end side of path 122 passed internal path 122 with the pigment suction internally through startup aspirator 170, check valve 160 was opened.In addition, air flows into communication paths 108 through importing path 151.Thereby the pigment that remains in the communication paths 108 moves to internal path 122, discharges from communication paths 108 then.In addition, pigment and air are stoped to importing the mobile of path 151 from communication paths 108.Thereby the gas that can avoid flowing into communication paths 108 flows back to importing path 151 with the pigment that remains in the communication paths 108.
(3) feed nozzle 121 is installed to batch mixing head body 101 with removably.In addition, the undergauge path 153 that imports path 151 links to each other with communication paths 108, and communication paths 108 is communicated with the 108a of batch mixing chamber side opening portion with internal path 122.And the pigment that remains in the communication paths 108 moves to the internal path 122 of feed nozzle 121.Subsequently, feed nozzle 121 removes from batch mixing head body 101.So, to compare with the situation that all pigment in the communication paths 108 are discharged with remaining in internal path 122, the amount that pigment will be discharged reduces.Thereby emissions operation can be accomplished fast.
(4) if the pigment that remains in the communication paths 108 moves to the internal path 122 of feed nozzle 121; And subsequently feed nozzle 121 is removed from front end 101; Under above-mentioned situation; Though the amount that pigment flows out is few, the pigment of still worrying to remain in the internal path 122 can flow out entering communication paths 108.
About in this respect, in the present embodiment,, form restriction at leading section 123 places of internal path 122, to compare with other part of internal path, the sectional area at restriction place is less.So when pulling down feed nozzle 121, the pigment in the internal path 122 flows out into communication paths 108, at this moment, restriction plays the effect that flow passage stops.Thereby, can prevent that the pigment in the internal path 122 from flowing out entering communication paths 108.
Incidentally, automobile according to the present invention is not limited to these instances that present embodiment is described with resin material production device.Can obtain following change embodiment through suitably changing present embodiment.
In the above-described embodiments, the inside diameter D 1 of the leading section 123 of internal path 122 is set at the inside diameter D 3 of communication paths 108 and equates (D1=D3).Yet the inside diameter D 1 of leading section 123 is not limited to 1 with the ratio of the inside diameter D 3 of communication paths 108.The inside diameter D 3 of communication paths 108 can be set at the inside diameter D 1 that is equal to or greater than leading section 123.
A kind of structure of in above-mentioned explanation of the present invention, having given an example wherein, forms restriction at leading section 123 places of internal path 122, compares with internal path 122 other parts, and the sectional area of this restriction is less.Yet,, be used for when pulling down feed nozzle 121, preventing that the structure of the pigment outflow entering communication paths 108 in the internal path 122 is not limited according to the present invention.Can adopt another kind of structure, valve gear for example, when pulling down feed nozzle 121, valve gear opens and closes the leading section 123 of internal path 122.
In the foregoing description of present embodiment, enumerated the structure of pressure adjustmenting mechanism, wherein; Through starting aspirator 170; Pressure P 2 in the undergauge path 153 is reduced with internal path 122 interior pressure P 1, and at this moment, check valve 160 is opened owing to this pressure changes; Air flows into communication paths 108 through undergauge path 153, with the minimizing of compensatory pressure P2.According to the present invention, the structure of pressure adjustmenting mechanism is not limited to said structure.Can use another kind of structure, it comprises for example pump 180, is used for air is got into communication paths 108 through importing path 151 force feeds, and is as shown in Figure 4.In this case, because from the pressure of pump 180 force feed gases, can make communication paths 108 and the pressure P 3 that imports 151 component part places of path be set at pressure P 1 far above internal path 122 (P3>P1).Thereby the pigment that remains in the communication paths 108 can be discharged through moving to internal path 122.
In the foregoing description of present embodiment, having given an example comprises that the base end side suction that the structure of aspirator 170, aspirator 170 are used for path 122 internally remains in the pigment in the communication paths 108.Yet, pump 180 also can be set replace aspirator 170, as shown in Figure 5, pump 180 is sent to communication paths 108 through importing path 151 with air.In this case, because from the pressure of pump 180 force feed air, can communication paths 108 and the pressure P 5 that imports 151 component part places of path be set at far above the pressure P 4 in the internal path 122 (P5>P4).In the case, because the pressure P 5 of force feed air (that is, than the high pressure P 5 of the pressure P in the internal path 122 4), thereby the pigment that remain in the communication paths 108 can move discharge.
Fluid by being pumped into is not limited to air.For example, worrying to replace air under the oxidized situation of pigment, can force feed inert gas, for example nitrogen.
In the above-described embodiments, check valve 160 is arranged at and imports in the path 151.So when carrying out emissions operation, undergauge path 153 is opened.Yet, replacing check valve 160, can use to drive to import the valve that path 151 opens and closes.
In the above-described embodiments, feed nozzle 121 is installed on batch mixing head body 101 with removably.In addition, the undergauge path 153 that imports path 151 links to each other with communication paths 108, and communication paths 108 is used to be communicated with batch mixing chamber side opening part 108a and internal path 122.Yet, can use the feed nozzle that can not separate with batch mixing head body 101.
Though during preceding text were described, give an example polyol component material and isocyanate component material were as the main composition material of polyurethane resin material (second material), resin material production device according to the present invention is not limited to the polyurethane resin material production device.Resin material production device of the present invention can be used for producing other resin materials.In this case, can adopt other materials as second material.In addition, though the pigment into polyurethane resin material colouring of giving an example as first material, first material is not limited to pigment.Can adopt the various materials of producing resin material as first material.
Claims (5)
1. resin material production device comprises: the batch mixing chamber, and it is configured to produce resin material through first material and composition being different from second material mixing of said first material; Forehearth; It is constructed with leading section and base end part; Side opening portion is connected said leading section towards the batch mixing chamber in said batch mixing chamber with opening, and said base end part is connected with the storage bin that stores said first material, and said feeder channel is configured to said first material is supplied with said batch mixing chamber; And controlling organization; Said controlling organization is configured to; Said batch mixing chamber side opening portion is opened, and, when said first material not being infeeded said batch mixing chamber; Said batch mixing chamber side opening portion is closed, and said resin material production device is characterised in that:
Pressure adjustmenting mechanism; It is configured to have the importing path; Said importing passage opening is near the part place that is positioned on the perisporium of said forehearth the said batch mixing chamber; When said first material that moves and will move to the base end side of said forehearth when said first material that carries out emissions operation, make remaining in the said forehearth was discharged, said pressure adjustmenting mechanism was opened said importing path; Make and to compare that the pressure in the said importing path is higher with the pressure at the said base end side place of said forehearth.
2. resin material production device according to claim 1 is characterized in that, said pressure adjustmenting mechanism comprises: aspirator is used for remaining in said first material in the said forehearth from the said base end side sucking-off of said forehearth; And check valve, be arranged in the said importing path, flow into said forehearth to allow fluid from said importing path, and stop fluid to flow into said importing path from said forehearth.
3. resin material production device according to claim 1 is characterized in that said pressure adjustmenting mechanism also comprises pump, and said pump is configured to via said importing path pressurized with fluid sent into said forehearth.
4. according to the described resin material production device of arbitrary claim in claim 1 to the claim 3; It is characterized in that; Said forehearth comprises: be formed at the internal path in the feed nozzle, said feed nozzle is installed on the body of said resin production plant with removably; And the communication paths that is formed at the body of said resin material production device, said communication paths is communicated with said batch mixing chamber side opening portion with said internal path, thus said importing path links to each other with said communication paths.
5. resin material production device according to claim 4 is characterized in that, said internal path is configured to be formed with restriction in the front end of said internal path, compares with other parts of said internal path, and the sectional area of said restriction is less.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007245616A JP4941196B2 (en) | 2007-09-21 | 2007-09-21 | Resin material generator |
| JP2007245616 | 2007-09-21 | ||
| JP2007-245616 | 2007-09-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101391467A CN101391467A (en) | 2009-03-25 |
| CN101391467B true CN101391467B (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008101613178A Expired - Fee Related CN101391467B (en) | 2007-09-21 | 2008-09-19 | Resin material production device |
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| JP (1) | JP4941196B2 (en) |
| CN (1) | CN101391467B (en) |
| CZ (1) | CZ2008574A3 (en) |
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| CN104720198B (en) * | 2015-03-09 | 2016-08-17 | 佛山市锦德机械设备有限公司 | A kind of polyurethane injecting head for shoes making machine |
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| JPS6393116A (en) * | 1986-10-07 | 1988-04-23 | Mitsubishi Metal Corp | Carrier plate drying machine |
| JP2517298B2 (en) * | 1987-07-15 | 1996-07-24 | 三菱電機株式会社 | Information playback device |
| JPH0729325B2 (en) * | 1987-10-19 | 1995-04-05 | 日本プラスト株式会社 | Stock solution changer for mixing head for reaction injection molding |
| JP2812116B2 (en) * | 1992-12-22 | 1998-10-22 | 豊田合成株式会社 | Mixing head |
| JPH06277586A (en) * | 1993-03-26 | 1994-10-04 | Asahi Sanac Kk | Recovering device of coating material in painting system |
| JP3158967B2 (en) * | 1995-06-20 | 2001-04-23 | トヨタ自動車株式会社 | Rotary atomization coating method and apparatus |
| JP2003190852A (en) * | 2001-12-27 | 2003-07-08 | Nissan Motor Co Ltd | Coating material feeder |
-
2007
- 2007-09-21 JP JP2007245616A patent/JP4941196B2/en not_active Expired - Fee Related
-
2008
- 2008-09-19 CN CN2008101613178A patent/CN101391467B/en not_active Expired - Fee Related
- 2008-09-19 CZ CZ20080574A patent/CZ2008574A3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CZ2008574A3 (en) | 2010-02-03 |
| CN101391467A (en) | 2009-03-25 |
| JP2009073104A (en) | 2009-04-09 |
| JP4941196B2 (en) | 2012-05-30 |
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