CN101987496A

CN101987496A - Mold cooling device in foam forming device and foam forming method using same

Info

Publication number: CN101987496A
Application number: CN2009101655118A
Authority: CN
Inventors: 天野资郎; 氏原进; 中村裕一
Original assignee: Sekisui Plastics Co Ltd
Current assignee: Sekisui Kaseihin Kogyo KK; Sekisui Kasei Co Ltd
Priority date: 2009-07-29
Filing date: 2009-07-29
Publication date: 2011-03-23
Anticipated expiration: 2029-07-29
Also published as: CN101987496B

Abstract

The invention provides a mold cooling device in a foam forming device, the loading and unloading operation of a back plate does not need to be carried out for adjusting the configuration of a cooling pipe in a mold mounting frame when replacing a mold, and the replacement operation of the mold can be effectively carried out under the situation of not adjusting the configuration of the cooling pipe. The mold cooling structure is provided with a plurality of pipe accommodating grooves (7) which are parallel mutually on the inner surface of the back plate (4) of the mold mounting frame (1A), a plurality of cooling branch pipes (8b) of cooling water ejection holes (9), which are provided with openings facing to the back surface of the mold are accommodated in the pipe accommodating grooves (7), cooling water which is supplied through a cooling main pipe (8a) which is connected and communicated with the cooling branch pipes (8b) is ejected to the mold from the cooling water ejection holes (9), when the mold is replaced, the back plate (4) does not need to be unloaded, thereby leading prop stays of the new mode to be in butt joint and be clamped and stopped on the inner surface of the back plate (4).

Description

Equipment for cooling die in the foam forming device and use its foam forming method

Technical field

The present invention relates to a kind ofly, before taking out formed products, be used for the cooling device that mould is cooled off heating the foaming that makes its foaming and obtain formed products and form in the device to being filled in foaminess resin particles such as preparation expanded particle in the mould.

Background technology

Foam forming device constitutes difference installation mold installing rack on fixed form (die plate) and moving die plate, vaporium in described mould installing rack is sent into steam, heat and make its foaming being filled in foaminess resin particles such as preparation expanded particle in the mould, carry out foaming and molding thus, behind foaming and molding, from the cooling tube that is configured in the vaporium cooling water injection is cooled off to mould, then, formed products is taken out in die sinking, in addition, under the situation of the different product of foaming and molding, foam forming device constitutes after taking out the mould installing rack from template, carry out so-called external treatment operation (outer section is got the り operation), promptly remove the mould of on above-mentioned mould installing rack, installing, change with mould corresponding to this shape of product.

This external treatment operation is not simply with respect to mould installing rack loading and unloading mould, but carry out to the part of liner (packing) class subsidiary on the mould installing rack etc. safeguard replacings, carry out the configuration status of the cleaning of mould, the general cooling tube of making by copper pipe that carries out in the mould installing rack, disposing the adjustment operation, carry out the reconditioning work of bad position etc., need expensive man-hour, the quality of this operation can be brought very big influence to the quality of product.

In addition, the distortion that the interior pressure of mould in order to prevent to be shaped because of heating causes, the outstanding pillar that is provided with at its back side, and this pillar card is ended on the back plate (back plate) that is fixed on the backside openings end of mould installing rack, therefore, under situation about cooling tube being configured in the mould installing rack, need avoid the allocation position of above-mentioned pillar on one side, be configured on one side, and, after having disposed this cooling tube, when being installed in the back plate on the mould installing rack, also must be noted that on one side to add cooling tube, Yi Bian carry out the installation exercise of back plate with this back plate and pillar, the handling operation required time of this back plate becomes big with respect to the shared ratio of external treatment operation required time, and the die change efficiency of operation significantly descends.

And then, the main purpose that constitutes the above-mentioned cooling tube of equipment for cooling die is mould is carried out uniform water-cooled comprehensively, but in order to reach this purpose, present situation be for example be fixed in the mould installing rack and the situation of the common bending cooling tube freely that uses of various mould under, when unloading the back plate, corresponding to the size of the mould of installing in the mould installing rack, shape etc., the operator rule of thumb carries out the bending adjustment of cooling tube with intuition.

On the other hand, in order can evenly to cool off all the time corresponding to the mould of changing, the equipment for cooling die in the foam forming device of also known a kind of cooling tube that on each mould, adopts special use.For example, in patent documentation 1 described equipment for cooling die, record a kind of cooling body, it constitutes the back side shape along the mould of installing in the mould installing rack, configuration cooling tube and snorkel and hocketing in vaporium from the water-cooled of cooling tube and air-cooled from snorkel, in patent documentation 2 described foam forming devices, a kind of cooling device is disclosed, it possesses the cooling tube of the perisporium of the cooling tube at the cooling die back side and cooling die in vaporium.

But, though above-mentioned any device all has the evenly effect of cooling die, but according to the former cooling body, owing in vaporium, promptly dispose cooling tube and dispose snorkel again, so the said external processing operation becomes more loaded down with trivial details, according to the latter's cooling body, when each more mold exchange, must cooling tube be configured in the vaporium three-dimensionally corresponding to the shape of this mould, exist the replacing of cooling tube or adjust the problem that operation needs significant time.

And then, in any device, when mold exchange more, must unload the back plate, corresponding to shape of mould etc. cooling tube is configured in the mould installing rack while the pillar installation site of avoiding mould etc., as mentioned above, the ratio that the handling operation required time of this back plate accounts for external treatment operation required time becomes big, has the problem of the operating efficiency decline of die change.

Patent documentation 1: Japanese kokai publication sho 59-78819 communique

Patent documentation 2: TOHKEMY 2003-71845 communique

Summary of the invention

The present invention puts in view of the above problems and proposes, its purpose is to provide the equipment for cooling die in a kind of foam forming device, it is when mold exchange more, do not need to carry out the handling operation of back plate to be used for adjusting the configuration of cooling tube in the mould installing rack, under the situation of the configuration adjustment of not carrying out cooling tube, can carry out the replacing operation of mould effectively, and can not be subjected to the influence at configuration position of the pillar of mould just can cooling die.

In order to reach above-mentioned purpose, the equipment for cooling die in the foam forming device of the present invention is characterised in that described foam forming device possesses:

Mould, described mould is assembled in the mould installing rack in loading and unloading mode freely;

Back plate, described back plate is installed in the openend of the rear side of mould installing rack, and card ends at the outstanding pillar that is provided with in the back side of above-mentioned mould; And

Vaporium, described vaporium is formed by the spatial portion between the described back plate and the mould back side;

Be provided with many pipe accommodating grooves on the face relative with the mould back side of above-mentioned back plate, take in cooling tube in these pipe accommodating grooves, described cooling tube is provided with a plurality of squit holes towards the mould backside openings.

In the equipment for cooling die in the foam forming device that constitutes like this, can constitute following structure: the cooling tube of taking in the pipe accommodating groove of above-mentioned back plate comprises that cooling is responsible for and the length direction be responsible for along this cooling cools off arms every side by side many of fixed intervals, these cooling arms are formed with respect to the state of the length direction that cools off the person in charge towards right angle orientation, one end of cooling arm is communicated with the cooling person in charge, the other end of cooling arm is airtight.

On the other hand, also can constitute following structure: the cooling tube of taking in the pipe accommodating groove of above-mentioned back plate comprises that cooling is responsible for and many cooling arms, flexagon is responsible in described cooling becomes コ word shape, described many cooling arms are between the both sides person in charge portion that is parallel to each other that this cooling is responsible for, along the length direction of these both sides person in charge portion every fixed intervals side by side, the both ends that make these cooling arms are communicated with above-mentioned both sides person in charge portion.

In addition, in the equipment for cooling die in above-mentioned foam forming device, it is characterized in that making the flexible pipe of on above-mentioned cooling is responsible for, installing to connect and be projected into the outside by the inserting hole that on the mould installing rack, is provided with short tube, and then, it is characterized in that the groove width of respectively managing accommodating groove of being arranged to state arranged side by side on the plate of above-mentioned back forms the width below 1/2 that card ends the end face diameter of the mould pillar on the plate of back.

The invention effect

According to the present invention, because many pipe accommodating grooves are set on the back plate of mould installing rack, and in these pipe accommodating grooves, take in the cooling tube that is provided with towards a plurality of squit holes of mould backside openings, therefore, when die change, do not need to unload the back plate and on one side the pillar of avoiding this mould such needs of configuration adjustment that carry out cooling tube have the pipe distribution operation of proficiency, can provide a kind of mould pillar that makes to block the equipment for cooling die that only on the plate of back, also can utilize the mould after the cooling tube of taking in the pipe accommodating groove that is being arranged on this back plate cools off replacing reliably.

So, owing to can not need to unload the operation of back plate, so can cut down the man-hour of the external treatment operation that comprises the die change operation significantly, in addition, a plurality of squit holes that can run through setting from the tube wall of the cooling tube that disposes in be provided with many pipes of back plate accommodating grooves are ejected into cooling water on the mould effectively, so can improve the cooling effect of mould.

And then, the above-mentioned cooling tube taken in comprises that cooling is responsible for and cool off arms every arranged side by side many of fixed intervals on the length direction that this cooling is responsible in the pipe accommodating groove of back plate, these cooling arms are formed with respect to the state of the length direction that cools off the person in charge towards right angle orientation, one end of cooling arm is communicated with the cooling person in charge, the other end of cooling arm is airtight, have under the situation of this matched tube structure, self-evident can easily and correctly cooling tube being configured in the pipe accommodating groove corresponding on the plate of back with simple structure with each pipe, the cooling water that supplies to the cooling person in charge can also be divided equably and flow to whole cooling arms arranged side by side, and a plurality of squit holes that run through setting from the tube walls at these cooling arms spray cooling water equably to mold integral, can cool off effectively.

The cooling that the cooling tube taken in is become コ word shape by flexagon in the pipe accommodating groove of back plate is responsible for and between this cooling person in charge's the both sides person in charge portion that is parallel to each other, length direction along these both sides person in charge portion constitutes every fixed intervals many cooling arms side by side, under the both ends that make these cooling arms and the situation that above-mentioned both sides person in charge portion is communicated with, can spray to mould equably from these cooling arms arranged side by side by the cooling water of cooling person in charge supply.

In addition, be installed on the cools body of above-mentioned cooling tube with short tube in the flexible pipe connection, this flexible pipe is connected under the situation with short tube outstanding outside by being arranged on inserting hole on the mould installing rack, can be outside installing just cooling water supply with flexible pipe and be connected in this flexible pipe simply and connect and use short tube, connect by this, can constitute the cooling water feeding pipe that reaches the above-mentioned cooling tube that on the plate of back, disposes.

Forming card in the groove width of respectively managing accommodating groove of being arranged to state arranged side by side on the plate of above-mentioned back ends under the situation at the width below 1/2 of the end face diameter of the mould pillar on the back plate, when mold exchange more, even the outstanding end face of this mould pillar is positioned on the pipe accommodating groove of back plate, also the major part card that should give prominence to end face can be ended on the back plate face around the pipe accommodating groove, therefore, can constitute all the time with stable status the mould installation constitution of pillar supporting on the plate of back.

At this moment, when the external diameter of the cooling arm of taking in the accommodating groove at pipe forms the big diameter of the degree of depth than the pipe accommodating groove, be connected to the situation of plate afterwards though produce the part of the perisporium of this cooling arm from managing accommodating groove end face outstanding and prevention mould pillar, but as long as utilize the pipe that to press the distortion of collapsing to form the cooling arm, even the end face of mould pillar is positioned on the pipe accommodating groove, also can press the outstanding surrounding wall portion of collapsing on one side from the outstanding cooling arm of pipe accommodating groove, the cooling arm is submerged in the pipe accommodating groove and make end face butt, the card of mould pillar end after on the plate.

Description of drawings

Fig. 1 is the vertical disconnected side view of the major part of foam forming device;

Fig. 2 is the exploded perspective view of equipment for cooling die;

Fig. 3 is the stereogram with back plate of cooling tube;

Fig. 4 is the amplification cross-sectional view of its part;

Fig. 5 is the vertical disconnected side view of amplification of rear side that possesses the mould installing rack of equipment for cooling die;

Fig. 6 is a part sectioned view of taking in the state of cooling arm in shallow pipe accommodating groove;

Fig. 7 is the sectional view that card ends the state of mould pillar on its groove;

Fig. 8 is the other forms of exploded perspective view of expression equipment for cooling die;

Fig. 9 is the vertical disconnected side view that the state of pipe accommodating groove is set at the inner piece of back plate;

Among the figure

1A, 1B-mould installing rack

The 2A-formpiston

The 2B-former

The 3-chamber

Plate behind the 4-

The 5-vaporium

The 6-pillar

7-manages accommodating groove

The 8-cooling tube

8a-cools off the person in charge

8b-cools off arm

9-cooling water squit hole

The 10-flexible pipe connects uses short tube

The specific embodiment

Below, accompanying drawings the specific embodiment of the present invention.Fig. 1 is the vertical disconnected side view of the major part of the foam forming device that constitutes in the mode of carrying out die sinking in the horizontal direction, foam forming device has and forms positive rectangular box-like a pair of mould installing

rack

1A, 1B, opening opposing end at described mould installing

rack

1A, 1B, be incorporated with formpiston 2A with protuberance 2a and former 2B in loading and unloading mode freely respectively with recess 2b, between the recess 2b of the protuberance 2a of described formpiston 2A and former 2B, be formed with chamber (formingspace) 3.

And then, at above-mentioned mould installing rack 1A, the openend of the rear side of 1B, respectively with respect to openend with freely mode of loading and unloading be equipped with this openend airtight the back plate 4 of rectangle, 4, utilize mould installing rack 1A, these back plates 4 in the 1B, 4 inner surface and formpiston 2A, confined space portion between the back side of former 2B forms vaporium 5, can supply with the steam of heating shaping usefulness by steam pipe (not shown) from the outside to this vaporium 5, and make at formpiston 2A, the back side of former 2B is towards back plate 4, the outstanding end face 6a cards of the 4 outstanding many pillars 6 that are provided with end with formpiston 2A, the back plate 4 that the back side of former 2B is relative, on 4 the above-mentioned inner surface.

In addition, assemble the cooling device of formpiston 2A, former 2B respectively at the inner surface of these back plates 4,4.This equipment for cooling die constitutes as follows: be provided with on the inner surface of back plate 4 and have parallel many arranged side by side straight pipe accommodating grooves 7 of fixed intervals, take in the cooling tube 8 that sprays cooling water towards the relative mould back side in these pipe accommodating grooves 7.

Fig. 2 of an example based on expression one side's mould installing rack 1A side, Fig. 3 describes the structure of this equipment for cooling die in detail, Fig. 2 is its exploded perspective view, Fig. 3 is the stereogram that possesses the back plate of cooling tube, on back plate 4 and back side interior surface opposing formpiston 2A, each fixed intervals is carved and is provided with many pipe accommodating grooves 7 that are parallel to each other in the horizontal direction, 7 ... 7, near portion of ora terminalis up and down and described pipe accommodating groove that the upper and lower side of described pipe accommodating groove is formed into back plate 4 are long straight shape on above-below direction, on the other hand, cooling tube 8 is responsible for 8a by cooling and Duo Gen cooling arm 8b constitutes, the length that 8a is responsible in cooling forms shortlyer slightly than the banner of back plate 4, many cooling arm 8b are responsible on the length direction of 8a in this cooling, every with aforementioned

tube accommodating groove

7,7 interval identical distance is arranged side by side, under following state, connect and compose cooling tube 8 in turn, promptly, make above-mentioned cooling be responsible for 8a towards horizontal direction, be responsible in this cooling under the tube wall of 8a on the side face, make the state that in the upper end of the above-mentioned many cooling arm 8b of vertical direction and cooling person in charge 8a, is communicated with.

And then, upper end inner surface side bending of plate 4 backward of all cooling arm 8b that are responsible for 8a and link, be communicated with cooling from the upper end, through this upper end bend 8b ', cooling arm 8b meets at right angles and hangs down downwards with respect to cooling off person in charge 8a.And the length of cooling arm 8b and the length of aforementioned tube accommodating groove 7 and form to be accommodated in and manage in the accommodating groove 7 about equally.

So be responsible for 8a and link, be communicated with cooling and these are cooled off arm 8b with respect to cooling person in charge 8a and hang down and be set as in the cooling tube 8 that the curtain shape forms in the upper end that makes many cooling arm 8b, cooling is responsible for 8a along horizontal arrangement on the upper end inner surface of back plate 4, and as shown in Figure 4, whole cooling arm 8b is taken in, is fixed on many of being set up in parallel on the plate 4 of back through its upper end bend 8b ' manage

accommodating grooves

7,7 in the mode that can unload ... in 7 in the corresponding pipe accommodating groove 7, thus, constitute equipment for cooling die.

Above-mentioned groove width of respectively managing accommodating groove 7 forms: the diameter of the outstanding end face 6a of above-mentioned mould pillar 6 equate below 1/2nd and with the external diameter of cooling arm 8b or than the wide slightly width of external diameter that cools off arm 8b.And the above-mentioned degree of depth of respectively managing accommodating groove 7 forms the dark slightly size of external diameter that equates or compare cooling arm 8b with the external diameter that cools off arm 8b, thereby will cool off arm 8b integral body and be accommodated the state of burying underground, but cooling arm 8b be copper pipe like that can the situation of conquassation distortion under, as long as make the external diameter of this cooling arm of its depth ratio 8b shallow in advance.On these all cooling arm 8b, from pipe accommodating groove 7 towards the tube wall part at the back side of mould, at length direction is to be provided with a plurality of cooling

water squit holes

9,9 that run through tube wall every closely-spaced running through on the above-below direction ... 9, and the lower end as shown in Figure 5, and the cover 14 that can be loaded and unloaded covers.By unloading this cover 14 reliably in the scavenge pipe etc.And the diameter of the outstanding end face 6a of so-called mould pillar 6 is meant the positive diameter of a circle of the minimum diameter that can surround outstanding end face 6a.

If the diameter of these cooling water squit holes 9 is little, then there is the impurity that contains in the cooling water to stop up the misgivings in hole, and run through be provided with such path boring ratio the difficulty, on the other hand, if the diameter of cooling water squit hole 9 is big, then be difficult to keep the interior upper end of cooling arm 8b and the pressure of bottom and equate, therefore, be preferably 0.5～1.5mm.

And then, the total open area that runs through the cooling water squit hole 9 of setting at all cooling arm 8b preferably be made as cooling be responsible for the pipeline in the 8a area of section 0.9～1.1, guarantee the necessary water yield, and keep unit reliably and press (unit presses).

In addition, in each cooling arm 8b, about running through the cooling water squit hole 9 of setting, 9 interval, start at from the upper end of cooling arm 8b with 30% of the length of this cooling arm 8b suitable length partly, above-mentioned interval is made as the interval of 20mm so that the configuration density of cooling water squit hole 9 becomes close, and with above-mentioned 70% the length part of comparing below being equivalent in, run through at interval every 50mm cooling water squit hole 9 is set, make thinning the dredging of configuration density of cooling water squit hole 9, by such formation, can be because of not being ejected into formpiston 2A, the cooling water flow on the top of former 2B makes the mould bottom become supercooling down.And all cooling water squit hole 9 is run through to be arranged to a little towards the state ejection cooling water of oblique upper.

On the other hand, on cooling person in charge 8a, the cooling water squit hole is not set, flow to all cooling arm 8b impartial the branch and constitute the cooling water that makes portion's circulation within it, and be responsible in this cooling on the tube wall of 8a perimembranous towards above outstandingly be provided with two (also can be more than three) flexible pipes and connect with

short tubes

10,10, flexible pipe connects with

short tube

10,10 predetermined distance of being separated by, and their lower ends with manage in be communicated with.Side frame portion on above-mentioned mould installing rack 1A, on left and right directions, be separated by and be connected interval identical distance with

short tube

10,10 with described flexible pipe and run through and be provided with inserting

hole

11,11, across liner (not shown) described flexible pipe is connected with

short tube

10,10 respectively and lead in inserting

hole

11,11, and connecting cooling water supply

flexible pipe

12,12 from the outstanding upper end of mould installing rack 1A so that fluid-tight mode is slotting.

In addition, as will back plate 4 being installed in means on the mould installing rack 1A in freely mode of loading and unloading, can adopt following means: bolt mounting holes is set at a plurality of positions of the peripheral part of this back plate 4, on the other hand, open end in the rear side of mould installing rack 1A is provided with screwed hole, in this screwed hole, be screwed into the bolt 13 that inserts by bolt mounting holes, but can adopt other means in addition.

In addition, in the opposing party's mould installing rack 1B side, also be provided with many pipe accommodating grooves 7 that are parallel to each other with above-mentioned the quarter equally at the inner surface of plate 4 thereafter, pipe accommodating groove 7 has structure same as described above, and it is long on above-below direction, on left and right directions, carve and establish pipe accommodating groove 7 every fixed intervals, on the other hand, in these pipe accommodating grooves 7, take in cooling arm 8b, thereby make a plurality of cooling water squit holes 9 that on the tube wall of cooling arm 8b, are provided be accommodated the state of burying underground towards the back side of former 2B, and the upper end that makes the upper end bend 8b ' of these cooling arms 8b is responsible for 8a every fixed intervals and cooling and is linked on the length direction of cooling person in charge 8a, be communicated with, by such cooling being responsible for 8a in the horizontal direction along the upper end internal surface configurations of back plate 4, constitute equipment for cooling die with structure same as described above, to be responsible for two flexible pipes installing on the 8a in cooling connects with short tube 10,10 insert the inserting hole 11 that leads to being arranged at side frame portion on the mould installing rack 1B waterproofly, in 11, connecting cooling water supply flexible pipe 12 from the outstanding outstanding end of mould installing rack 1B, 12.

The mould installing rack 1A of above-mentioned pair of right and left, but 1B is installed on fixed form and the moving platen in loading and unloading mode freely respectively, when foaming and molding, as known in the art, behind matched moulds, utilize the protuberance 2a of formpiston 2A and the recess 2b of former 2B to form chamber 3, in chamber 3, fill foaminess resin particles such as preparation expanded particle, afterwards, to

vaporium

5,5 supply with steam and heating, make its second time of foaming, then, be responsible for 8a by cooling water flexible pipe 12 to the cooling of cooling tube 8 and supply with cooling water, being responsible for 8a from cooling makes cooling water divide the flow direction at back plate 4, among the many cooling arm 8b that take in 4 the pipe accommodating groove 7, from cooling water squit holes 9 of these coolings arm 8b to formpiston 2A, former 2B sprays cooling water, cool off thus, the cooling water after the use etc. by with mould installing rack 1A, the following side frame portion of 1B links, after the outlet 15 that is communicated with is discharged, expansion-molded article is taken out in die sinking.

And the foaminess resin particle is at synthetic resin particle impregnation physical blowing agent, by the particle that heating is foamed, also comprises the preparation expanded particle that the preparation foaming forms.Wherein, in the present application, mainly make the preparation foaming, so-called preparation expanded particle.

As the synthetic resin that constitutes above-mentioned foaminess resin particle, it is polystyrene resins such as resin, styrene-maleic anhydride copolymer, SAN that polystyrene, impact resistant polystyrene (high impact polystyrene), styrene-ethylene copolymers, styrene-modified polyethylene are for example arranged, polyolefin-based resins such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, polyester based resins such as PETG etc.

And, as above-mentioned physical blowing agent, aliphatic hydrocarbons such as propane, butane, pentane, hexane are for example arranged; Alicyclic hydrocarbon type such as pentamethylene, cyclobutane; Halogenated hydrocarbons such as Arcton 11, dicholorodifluoromethane, Dichlorotetrafluoromethane, trichorotrifluoroethane, chloromethane, carrene, chloric ethane etc.

In addition, when carrying out the replacing of mould, after from mould installing rack 1A, the 1B of pair of right and left formpiston 2A, former 2B being unloaded, as long as it is last that new formpiston 2A, former 2B are installed in described mould installing rack 1A, 1B.At this moment, need not unload back

plate

4,4 from

mould installing rack

1A, 1B with cooling tube 8, the cooling tube 8 that will be provided with on the

plate

4,4 of described back directly uses as the cooling device of this mould, utilize the inner surface card of

back plate

4,4 to end the end face of the pillar 6 of the mould of replacing newly, therefore, can need the pipe distribution operation of the cooling tube of certain proficiency, the external treatment operations such as handling operation of back plate 4, can be effectively and carry out die change reliably.

About blocking the only degree of depth of the aforementioned tube accommodating groove 7 of the inner surface setting of the back plate 4 of the end face of mould pillar 6, cooling arm 8b be copper pipe like that can the situation of conquassation distortion under, as shown in Figure 6, can make the external diameter of this cooling arm of described depth ratio 8b shallow, under the state that a part that makes cooling be responsible for the tube wall of 8a is given prominence in vaporium 5 from the inner surface of back plate 4, take in.On the pipe accommodating groove 7 of the back plate 4 that constitutes like this, mould pillar 6 is relatively when ground is crimped on the end face cooling arm 8b outstanding from this pipe accommodating groove 7, the tube wall that utilizes its pressing force will manage accommodating groove 7 is pressed and is collapsed, as shown in Figure 7, plastic deformation on one side is the cross section elliptical shape of growing crosswise, submerge on one side in the pipe accommodating groove 7, the end face that can make mould pillar 6 reliably butt, be limited to the inner surface of back plate 4.

Fig. 8 represents other embodiments of equipment for cooling die of the present invention, in the above-described embodiment, make cooling arm 8b arranged side by side on left and right directions under the state of vertical direction, but in this embodiment, the structure of formation is that cooling arm 8b is being set up in parallel every fixed intervals on above-below direction under the state of horizontal direction.

Specifically, the cooling of cooling tube is responsible for 8a and is had level cooling person in charge 8a1 of portion and the both sides person in charge 8a2 of portion, 8a2, the both ends of the level cooling person in charge 8a1 of portion towards below rectangular warpage and form the described both sides 8a2 of person in charge portion, 8a2, level is cooled off 8a1 of person in charge portion and the both sides person in charge 8a2 of portion, 8a2 is arranged to one and constitutes cooling person in charge 8a, so cooling is responsible for 8a and is formed " コ " word shape, the 8a2 of both sides person in charge portion on this cooling person in charge 8a1 of portion, between the 8a2, on above-below direction, dispose many cooling arm 8b of state arranged side by side every fixed intervals, make two ends and the both sides person in charge 8a2 of portion of these cooling arms 8b, 8a2 links, be communicated with, on the other hand, on the inner surface of back plate 4, with state arranged side by side on above-below direction, be provided with straight in the horizontal direction pipe accommodating groove 7 ' every carving with the interval identical distance of above-mentioned cooling arm 8b, pipe accommodating groove 7 ' has the length that two ends are formed near the portion of two side ends of described back plate 4, make the cooling that forms " コ " word shape be responsible for level cooling person in charge 8a1 of portion and the both sides person in charge 8a2 of portion of 8a, 8a2 forms upper end from the inner surface of back plate 4 along the state of both side ends, all cooling arm 8b are accommodated in and are located at many pipe accommodating grooves 7 ' of back on the plate 4 in the mode that can unload, 7 ' ... in the pipe accommodating groove 7 ' of correspondence, constitute equipment for cooling die in 7 ' thereby fix.

And, the both ends of all cooling arm 8b are towards the inner surface one lateral bending song of

back plate

4,8a is responsible in cooling with respect to " コ " word shape that disposes on the inner surface of back plate 4, and all cooling arm 8b are accommodated in pipe accommodating groove 7 ', 7 ' by the 8b ' of its bending two ends portion, 8b ' ... in 7 '.On cooling arm 8b on the tube wall of mould direction, on its length direction, be provided with a plurality of cooling water squit holes 9 every closely-spaced running through, but also can be responsible on the 8a cooling water squit hole 9 is set in cooling.

Cool off the level of being responsible for 8a at this and cool off perimembranous on the tube wall of the person in charge 8a1 of portion, same with above-mentioned equipment for cooling die, the outstanding flexible pipe that is provided with two (also can be more than three) connects with

short tube

10,10 towards the top, flexible pipe connects the interval that is separated by and stipulates with

short tube

10,10 on the length direction (left and right directions) of the level cooling person in charge 8a1 of portion, and lower end and this level cooling person in charge 8a1 of portion internal communication.Last side frame portion at mould installing rack 1A (1B), on left and right directions, be separated by and be connected interval identical distance with

short tube

hole

11,11, across liner (not shown) described flexible pipe is connected with

short tube

10,10 respectively and lead in inserting

hole

11,11, and connecting cooling water supply

flexible pipe

12,12 from the outstanding upper end of mould installing rack 1A (1B) so that fluid-tight mode is slotting.

Mould installing rack 1A, the 1B of pair of right and left of equipment for cooling die that possesses such formation when die change and the cooling device of above-mentioned mould same, be predisposed to do not need from

mould installing rack

1A, 1B unloads and the state installed, utilizes the inner surface card of

back plate

4,4 to end the end face of the pillar 6 of the new mould of changing.

And, 8a is responsible in above-mentioned cooling, the diameter of cooling arm 8b, the diameter etc. of cooling water squit hole 9 that runs through setting at cooling arm 8b is identical with above-mentioned embodiment, but the spacing that runs through setting of cooling water squit hole 9 with respect to the length direction of pipe with the fixed intervals setting, on the other hand, in 30% top that is equivalent to whole radical and many cooling arm 8b establishing, reduce the spacing that runs through setting of cooling water squit hole 9, in 70% bottom that is equivalent to whole radical and many cooling arm 8b establishing, the spacing that runs through setting that makes cooling water squit hole 9 is provided with spacing greater than above-mentioned upper side running through of cooling water squit hole 9, and making not can be because of to formpiston 2A, cause the supercooling of mould bottom under the cooling water flow that spray on the top of former 2B.In addition, all cooling water squit hole 9 is preferably run through and is arranged to cooling water with a little towards the state ejection of oblique upper.

And then, in above any embodiment, represented to manage the mode that accommodating groove 7,7 ' is set directly at the inner surface of back plate 4, but also can constitute as shown in Figure 9, inner surface stickup at back plate 4 has certain thickness inner piece 4 ', pipe accommodating groove 7,7 ' is set, and card ends the outstanding end face of mould pillar 6 on this inner piece 4 '.

In above-mentioned equipment for cooling die, in loading and unloading mode freely back

plate

4,4 is installed for openend at

mould installing rack

1A, 1B, pipe accommodating groove 7,7 ' is set on the described both sides' of

plate

4,4 afterwards inner surface, the situation of taking in cooling tube in these pipe accommodating grooves 7,7 ' is illustrated, but can also in loading and unloading mode freely back

plate

4,4 be installed at the openend of

mould installing rack

1A, 1B, on the inner surface of any the back plate 4 in the

plate

4,4 of described back pipe accommodating groove 7,7 ' is set, in these pipe accommodating grooves 7,7 ', takes in cooling tube.

Claims

1. the equipment for cooling die in the foam forming device is characterized in that,

Described foam forming device possesses:

2. the equipment for cooling die in the foam forming device as claimed in claim 1 is characterized in that,

The cooling tube taken in comprises that cooling is responsible for and many cooling arms in the pipe accommodating groove of back plate, described many cooling arms along this cooling person in charge's length direction side by side every fixed intervals,

These cooling arms are become with respect to the state of the length direction that cools off the person in charge towards right angle orientation, and an end of described cooling arm is communicated with the cooling person in charge, the other end is airtight.

3. the equipment for cooling die in the foam forming device as claimed in claim 1 is characterized in that,

The cooling tube of taking in the pipe accommodating groove of back plate comprises that cooling is responsible for and many cooling arms, flexagon is responsible in described cooling becomes コ word shape, described many cooling arms are between the both sides person in charge portion that is parallel to each other that this cooling is responsible for, along the length direction of these both sides person in charge portion side by side every fixed intervals

Both ends of these cooling arms are communicated with above-mentioned both sides person in charge portion.

4. as the equipment for cooling die in claim 2 or the 3 described foam forming devices, it is characterized in that,

The flexible pipe connection of installing on cooling is responsible for is projected into the outside with short tube by the inserting hole that is provided with on the mould installing rack.

5. the equipment for cooling die in the foam forming device as claimed in claim 1 is characterized in that,

Form the width below 1/2 that card ends the end face diameter of the mould pillar on the plate of back in the groove width of respectively managing accommodating groove of being arranged to state arranged side by side on the plate of back.

6. a foam forming method is characterized in that,

Use a kind of foam forming device; this foam forming device possesses in a pair of mould installing rack the former and the formpiston of the assembling freely of loading and unloading respectively, openend and the card that is installed on the rear side of each mould installing rack ends at the back plate of the outstanding pillar that is provided with in the back side of above-mentioned former or formpiston and the vaporium that is formed by the spatial portion between the back side of this back plate and above-mentioned former or above-mentioned formpiston

Above-mentioned former and formpiston matched moulds with above-mentioned foam forming device, filling-foam resin particle in the chamber that is formed between above-mentioned former and the formpiston, in above-mentioned vaporium, supply with steam afterwards, make above-mentioned foaminess resin particle foamable, then, by a plurality of squit holes that are provided with from cooling tube the cooling water injection is cooled off above-mentioned mould to the mould relative with above-mentioned cooling tube, described cooling tube is incorporated in many pipe accommodating grooves on the face relative with the mould back side that is formed at any above-mentioned back plate, and a plurality of squit holes that are provided with on the described cooling tube are towards the mould backside openings.