CN101637957B - Foaming molding device with mold cooling tubing - Google Patents

Abstract

The present invention provides a foaming molding device with mold cooling tubing. The mold cooling tubing does not require a special cooling tubing correspondingly with the shape of the mold when the mold is exchanged. The configuration of the mold cooling tubing can be performed in a mold mounting rack which the configuration such as mold support can be avoided, and furthermore the integral body of the mold can be cooled uniformly. The configuration of the device is as follows: a main tube is configured along the lower surface of an upper frame of mold mounting rack; a plurality of branch tubes with flexibility are vertically provided on the main tube, which are separated for a certain distance from each other; the upper opening part of each branch tube is communicated with the main tube; cooling water spraying holes are provided in the longitudinal direction with same small interval; when the cooling water is sprayed from the cooling water spraying holes to the mold for cooling, the branch tubes with flexibility vibrates horizontally under the function of the reaction force of the spraying pressure thereby uniformly cooling the integral body of the mold; additionally, in mold replacement, the branch tube is bent and the front end face of the support is clamped to the inner surface of the back plate for surrounding the mold support.

Description

Possesses the foam forming device of mold cooling tubing

Technical field

The present invention relates to a kind of foam forming device and use the foam forming method of this foam forming device, making it foam at materials such as heating the preparation expanded particle be filled in mould and obtain in the foam forming device of formed products, possessing the mold cooling tubing for cooling mould before taking out formed products.

Background technology

Foam forming device is configured to by sending into steam to the vaporium be arranged on respectively in fixed mold plate (die-plate) and the mould installing rack that moves moulds on plate, carry out heating to materials such as the thermoplastic resin pearls be filled in mould make it foam and be shaped, cool from the cooling tube be configured in vaporium to mold ejector cooling water after shaping, then die sinking, take out formed products, in addition, when the product being shaped different, after taking apart a die installing rack from Die and mould plate, remove the mould be arranged in above-mentioned mould installing rack, change the mould corresponding with the shape of this product, namely so-called external treatment operation (outer section gets り operation) is carried out.

This external treatment operation is not only carry out removing and installing of mould relative to mould installing rack, also carry out the maintain and replace of the parts to liner class subsidiary on mould installing rack etc., mould cleaning, the adjustment of the configuration status of the cooling tube of the general copper pipe be configured in mould installing rack is operated, the repair operation etc. at bad place, need a lot of man-hour, the quality of quality to product of this operation has a great impact.

In addition, due to the distortion in order to be caused by interior pressure when preventing heating to be shaped, there is pillar the back side of mould is projecting, on the rear plate (back plate) that the backside openings end that this pillar is locked in mould installing rack is fixed, so, when configuring cooling tube in mould installing rack, the allocation position of above-mentioned pillar must be avoided while be configured, and, after configuring this cooling tube, after installing on mould installing rack during plate, must confirm that the position of pillar makes this rear plate and pillar can not sandwich cooling tube while carry out the installation exercise of rear plate, for external treatment operation, ratio shared by time required for the handling operation of this rear plate becomes large, the operating efficiency of die change significantly declines.

And, the main purpose forming the above-mentioned cooling tube of equipment for cooling die is to carry out uniform water-cooled to the whole face of mould, for reaching this object, such as, when being fixed in mould installing rack, various mould uses jointly bending cooling tube freely, when present situation is plate after unloading, operator needs rule of thumb to adjust the bending of cooling tube with intuition and corresponding to the size, shape etc. of the mould be arranged in mould installing rack.

On the other hand, can cool uniformly all the time to correspond to the mould changed, being also known to the equipment for cooling die in a kind of foam forming device adopting special cooling tube on each mould.Such as, in the equipment for cooling die described in patent document 1, describe a kind of cooling body, consist of in the mode of the back side shape along the mould be arranged in mould installing rack, cooling tube and snorkel is configured, the water-cooled of the cooling tube that hockets and the air-cooled of snorkel in vaporium; In the foam forming device described in patent document 2, disclose a kind of cooling device possessing the cooling tube at the cooling die back side and the cooling tube of cooling die perisporium in vaporium.

[patent document 1] Japanese Laid-Open Patent Publication 59-78819 publication

[patent document 2] Japanese Unexamined Patent Publication 2003-71845 publication

But, although have the effect can carrying out roughly uniform cooling to mould in any one device above-mentioned, but there is following problems: according to the former cooling body, owing to configuring cooling tube and snorkel in vaporium simultaneously, said external processing operation is complicated further; According to the cooling body of the latter, the cooling tube of the shape that all must correspond to this mould when each more mold exchange three-dimensionally configure dedicated in vaporium, replacing, the adjustment operation of cooling tube bother very much.

And, in any one device, plate after all must unloading when more mold exchange, avoid pillar installation site of mould etc. while the shape etc. corresponding to mould configures cooling tube in mould installing rack, as mentioned above, time needed for the handling operation of this rear plate becomes large relative to the ratio shared by the time needed for external treatment operation, the problem that the replacement operation efficiency that there is mould declines.

Summary of the invention

The present invention proposes in view of such problem, its object is to provide a kind of possess the foam forming device of following mold cooling tubing and use the foam forming method of this foam forming device, described foam forming device is when more mold exchange, the special cooling tubing corresponding with the shape of mould need not be adopted, and the allocation position need not avoiding the pillar of mould etc. to the configuration of cooling tubing adjustment in mould installing rack does not require that operator has how masterful technique yet, just can simply and be correctly configured adjustment, and can realize carrying out Homogeneous cooling to mold integral, the stabilisation of the minimizing in the man-hour of external treatment operation and the quality of formed products can be sought.

For achieving the above object, the invention provides a kind of foam forming device possessing mold cooling tubing, described foam forming device possesses:

Mould, described mould is assembled in mould installing rack in handling mode freely;

Rear plate, described rear plate is arranged on the openend of the rear side of mould installing rack, and the pillar that the back side being locked on above-mentioned mould is projecting;

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

Mold cooling tubing, described mold cooling tubing is configured in the rear plate side relative with the mould back side,

The feature of described foam forming device is:

Above-mentioned mold cooling tubing comprise import cooling water supervisor and along this supervisor length direction at regular intervals with its upper end open portion be responsible for link and the state be communicated with from being responsible for the many arms hung down, these arms are made up of the synthetic resin pipe with flexible and elastic recovering force, on each arm, be provided with towards the cooling water squit hole of mould backside openings every closely-spaced in the longitudinal direction.

Possessing the foam forming device of the mold cooling tubing formed like this, it is characterized in that:

The lower end of the arm of more than at least two interlinks, is communicated with.

And then, in above-mentioned foam forming device, its structure is: be formed as by a rectangular synthetic resin pipe is bent to U-shaped at the central portion of length direction two arms that lower end interconnects by this U-shaped bend, this two arms are formed multiple groups as one group, makes the upper end open portion of each arm link with supervisor, be communicated with.

In above-mentioned foam forming device, there is such structure: the coated tube being nested with the U-shaped with rigidity on U-shaped bend.

In above-mentioned foam forming device, its structure is: from being responsible for many arms hanging down using adjacent two arms as one group, is connected between the open lower end of each group arm by the junction block with rigidity bending to U-shaped.

In addition, in above-mentioned foam forming device, there is such structure: opening portion links with supervisor at its upper end, length direction along this supervisor under the state that is communicated with is set up in parallel at regular intervals for many arms, and the lower ending opening portion of each arm and link with the tube connector of the hollow being responsible for configured in parallel, be communicated with.

In above-mentioned foam forming device, use fluororesin tubulation as the flexible pipe that has forming above-mentioned arm.

Invention effect

According to the present invention, because mold cooling tubing comprises the supervisor that imports cooling water and to link and the state be communicated with to hang down and in their length direction every the closely-spaced arm being provided with multiple cooling water squit hole towards mould backside openings from being responsible for being responsible for its upper end open portion at regular intervals with on the length direction of this supervisor, and this arm is formed by the synthetic resin pipe with flexible and elastic recovering force, so when more mold exchange, this arm can be made bending to walk around mould pillar, eject the configuration position of pin etc., therefore, operator is not needed to have the configuration adjustment how masterful technique just can carry out cooling tubing, and do not need the special cooling tubing of the shape corresponding to mould, just can realize the cooling tubing corresponding to the mould changed, the man-hour of the external treatment operation comprising die change operation can be reduced significantly.

And, the cooling water being supplied to supervisor can be diverted to equably from this supervisor be the above-mentioned many arms that hang down of curtain shape, from running through multiple cooling water squit holes of setting towards the mould back side efficiently to mold ejector cooling water on these arms, moreover, because arm has flexibility and elastic recovering force, so because of emission direction not equal of the cooling water from multiple squit hole be arranged on these arms, under the effect of the reaction force when this cooling water sprays, arm can be made to take supervisor as the fulcrum direction, face of plate and the micro-vibration of left and right directions backward, therefore, the cooling water ejected from multiple squit holes of each arm is not concentrated in the established part in die back face but whole of the cooling die equably that can scatter, the stabilisation of the quality of formed products can be sought.

And, in above-mentioned foam forming device, link with supervisor in upper end open portion, the lower end of arm of more than at least two interlinks, when being communicated with in many arms being communicated with, even if one in these arms in an arm so multiple cooling water squit hole blocked, also cooling water can be supplied by other arm in this arm, from the cooling water squit hole beyond above-mentioned blocked cooling water squit hole reliably to mould ejection cooling water.

In above-mentioned foam forming device, by making one rectangular have flexible pipe and bend to U-shaped at the central portion of length direction and be formed as two arms that lower end interconnected by this U-shaped bend at above-mentioned arm, this two arms are formed multiple groups as one group, the upper end open portion of each arm is linked with supervisor, be communicated with, in this case, its structure is simple and making is easy, the foam forming device possessing mold cooling tubing can be provided at a low price, and the processing ease installing pipe arrangement in mould installing rack carries out, and, in each group of arm, even if one in the arm of side so multiple cooling water squit hole blocked, also cooling water can be supplied by supervisor and other arm in this arm, mould ejection cooling water is pressed to homogeneous ejection from the cooling water squit hole beyond above-mentioned blocked cooling water squit hole.And, the foam forming device possessing following such mold cooling tubing can be provided: though when arm damage or cooling water squit hole blocked and cannot use, also can continue the arm using other to organize, only change the simple of this arm and the mold cooling tubing of economy.

In above-mentioned foam forming device, U-shaped bend is nested with the coated tube of the U-shaped with rigidity, by the state that the coated tube of this U-shaped can make two arms stably keep abreast of mutually, therefore, successfully can carry out pipe arrangement operation in mould installing rack, and the reaction force etc. produced during by spraying cooling water from the multiple squit holes be arranged on these arms, the upper and lower side of each arm can be made to be responsible for this U-shaped coated tube as fulcrum micro-vibration in the lateral direction as string, therefore, the cooling water dispersion of ejecting from multiple squit holes of each arm can be made to be ejected into whole of the mould back side, efficiently mould is cooled equably.

In above-mentioned foam forming device, be made up of a synthetic resin pipe that is flexible and elastic recovering force that has with certain length at each cooling tube, and using adjacent two arms as one group, when being connected by the junction block with rigidity bending to U-shaped between the open lower end of each group of arm, link with upper end and supervisor by using to have, the U-shaped junction block of the flexibility that the interval between the adjacent arm be communicated with is corresponding, easily and correctly can make and many arms are set up in parallel in curtain shape at regular intervals on the length direction of supervisor, the mold cooling tubing kept, also the operation configuring pipe arrangement in mould installing rack can be carried out efficiently, Homogeneous cooling can be carried out to mould efficiently simultaneously, the stabilisation of the minimizing in the man-hour of external treatment operation and the quality of formed products can be sought.

In addition, in above-mentioned foam forming device, many arms link with supervisor opening portion at its upper end, length direction along this supervisor under the state be communicated with is set up in parallel at regular intervals, and the lower ending opening portion of each arm and linking with the tube connector of hollow of supervisor's configured in parallel, be communicated with, in this case, weight by tube connector applies uniform tensile force can to all arms, correctly can be set up in parallel at regular intervals on the length direction of supervisor, because the upper and lower side of all arms links with this supervisor and tube connector, be communicated with, so there is not a part of arm take supervisor as the misgivings that fulcrum carries out swinging, therefore, can smoothly and correctly in mould installing rack, carry out constructing operation, the operating efficiency of die change can be significantly improved.

And, such as, even if the cooling water squit hole of adjacent two arms is blocked, also can from the upper end open portion supply cooling water of these arms of supervisor's side direction, can from the squit hole ejection cooling water of the upper side beyond blocked squit hole, on the other hand, also by tube connector from other arm to the squit hole of the upper side beyond blocked squit hole supply cooling water, the cooling to mould can effectively be carried out.And, because configure many arms with curtain shape between supervisor and tube connector, so the simple and effect at a low price of structure can be obtained, can certainly obtain constructing in mould installing rack efficiently, and seek the action effects such as the stabilisation of the minimizing in the man-hour of external treatment operation and the quality of formed products.

The present invention can provide following such foam forming device: in foam forming device, when above-mentioned arm is formed by fluororesin tubulation, can Long-Time Service, even and if when pipe arrangement operates or construction time etc. bump against other object because of carelessness, also effectively can absorb this impulsive force by flexible and elastic deformation and prevent breakage, and, bending this arm while when carrying out pipe arrangement in the mode of the allocation position walking around mould pillar, mould pillar can be made flexibly to abut, locking, other fixed part need not be used also can to possess stable mold cooling tubing.

Accompanying drawing explanation

Fig. 1 is the longitudinal cross-sectional side view of the major part of foam forming device;

Fig. 2 is the exploded perspective view of the die side of its side;

Fig. 3 is the front view of mold cooling tubing;

Fig. 4 is the enlarged front view of the bottom of one group of arm;

Fig. 5 is the front view not arranging the mold cooling tubing of coated tube at U-shaped bend;

Fig. 6 is the stereogram that the mode representing to get around mould pillar carries out the pipe arrangement state of the arm of pipe arrangement;

Fig. 7 is a vertical profile front view of the major part of the variation representing mold cooling tubing;

Fig. 8 is the front view of other the embodiment representing mold cooling tubing.

In figure:

A-mold cooling tubing;

1A, 1B-mould installing rack;

The mould of 2A, 2B-negative and positive;

3-chamber;

Plate after 4-;

5-vaporium;

6-mould pillar;

7-is responsible for;

8-arm;

9-cooling water squit hole;

13-coated tube;

15-junction block;

16-tube connector.

Detailed description of the invention

Below, by reference to the accompanying drawings concrete embodiment of the present invention is described, Fig. 1 is the vertical broken side view of the major part of the foam forming device that the mode of carrying out die sinking is in the horizontal direction formed, foam forming device has and is formed as a pair rectangular box-like mould installing rack 1A of front, 1B, at described mould installing rack 1A, the relative open end of 1B, the mould 2A of negative and positive is incorporated with respectively in handling mode freely, 2B (is only called mould 2A below, 2B), at described mould 2A, chamber (formingspace) 3 is formed between the protuberance 2a of 2B and recess 2b.

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

In addition, along the inner surface of rear plate 4,4, mold cooling tubing A, A of mould 2A, 2B is attached to respectively.Composition graphs 2, Fig. 3 structure to this mold cooling tubing A is described in detail, the stereogram that Fig. 2 is mould installing rack 1A, the mould 2A of a side (being formpiston in the drawings), mold cooling tubing A and rear plate 4 are in decomposing state, Fig. 3 is the front view of mold cooling tubing A, mold cooling tubing A comprises supervisor 7 and Duo Gen arm 8,8 ... 8, the length of described supervisor 7 is formed slightly shorter than the transverse width of rear plate 4, and has outspoken nature; Many arms 8,8 ... 8 to link with supervisor 7 with its upper end open portion and the state be communicated with is that curtain shape hangs down from supervisor 7 at regular intervals along the length direction of this supervisor 7, these arms 8 are made up of the synthetic resin pipe with flexibility, elastic recovering force and heat resistance, in the tube wall part at the back side towards mould 2A, length direction and above-below direction run through every closely-spaced the multiple cooling water squit holes 9,9 being provided with through tube wall ... 9.

If the diameter of these cooling water squit holes 9 is little, the impurity component blocking contained in its water that is likely cooled, and such small diameter bore to run through setting also difficult, on the other hand, if the diameter of cooling water squit hole 9 is large, the pressure being difficult to maintain the upper end of arm 8 and bottom is equal, so preferably diameter is 0.5 ~ 1.5mm.Further, the total aperture area preferably all arms 8 running through the cooling water squit hole 9 of setting is 0.9 ~ 1.1 of the area of section of pipeline in supervisor 7, to ensure the necessary water yield and reliably to maintain unit's pressure (unit presses).

And, in each arm 8, about the cooling water squit hole 9 running through setting, interval between 9, starting in the length thereof suitable with 1/3 of the length of this arm 8 from the upper end of arm 8, the interval above-mentioned interval being set to 20mm becomes close to make the configuration density of cooling water squit hole 9, and the length thereof of below being equivalent to 1/3 is started at from this part, namely middle body adopts the interval of 50mm to carry out running through setting, and then, and this part below 1/3 suitable length thereof in adopt the interval of 100mm to carry out running through and arrange to make that the configuration density of cooling water squit hole 9 is thinning dredges, by such formation, can not because being ejected into matched molds 2A, mould bottom is made to become supercooling under the cooling water flow on the top of 2B.And all cooling water squit holes 9 are run through is arranged to spray cooling water towards the state of oblique upper a little.

And, as the above-mentioned synthetic resin pipe with flexibility, elastic recovering force and heat resistance forming arm 8, specifically have employed external diameter is 8mm, the pipe that the fluororesin being 200 DEG C by the heat resisting temperature of the maximum temperature (about 120 DEG C) in vaporium 5 when can stand shaping is formed, but except fluororesin, also can adopt the synthetic resin pipes such as polyester based resin, polyolefin-based resins, silicone-based resin.On the other hand, above-mentioned supervisor 7 specifically adopts external diameter to be the copper pipe of 22mm.

Above-mentioned supervisor 7 does not arrange cooling water squit hole, the cooling water circulated is made to be diverted in all arms 8 equably therein, and perimembranous on the tube wall of this supervisor 7, projecting upward have two (also can be more than three) flexible pipe connection short tubes 10,10, flexible pipe connection short tube 10,10 is separated by predetermined distance, and their lower ends are communicated with in pipe.In the upper side frame portion of above-mentioned mould installing rack 1A, the interval identical with the interval of described flexible pipe connection short tube 10,10 that be separated by the lateral direction is run through and is provided with inserting hole 11,11, across liner (not shown), described flexible pipe connection short tube 10,10 is inserted in a fluid-tight manner in inserting hole 11,11 respectively, and connect cooling water supplying flexible pipe 12,12 in the upper end outstanding from mould installing rack 1A.

Supervisor 7 is installed by horizontal along the lower surface in the upper side frame portion in the open end of mould installing rack 1A with the state of the upper end inner surface close to rear plate 4, the above-mentioned many arms 8 hung down in curtain shape from supervisor 7 along rear plate 4 inner surface setting and make its lower end position reach the lower end portion of rear plate 4.

These arms 8 can be arms be made up of synthetic resin pipe with certain length, its upper end open portion and above-mentioned supervisor 7 link, be communicated with, lower ending opening portion is closed by latch etc. simultaneously, also can be as shown in Figure 5 there is flexibility, heat resistance, the synthetic resin pipe that of memory is rectangular, U-shaped is bent to by the central portion at its length direction, two that form that lower end interconnects by this U-shaped bend 8a arms parallel to each other, by these two arms 8, 8 are one group and form multiple such group, make each arm 8, the upper end open portion of 8 links with supervisor 7, be communicated with.

And, as shown in Figure 2 to 4, be preferably formed to each group of arm 8, the U-shaped bend 8a of 8 inserts in the copper coated tube 13 bending to U-shaped and utilizes this coated tube 13 to cover the structure of U-shaped bend 8a, wherein the radius of curvature of coated tube 13 is arm 8, between 8 the size of space 1/2, by such formation, be communicated with each group of arm 8, 8 above-mentioned U-shaped bend 8a each other keep its case of bending by this coated tube 13, and maintain arm 8 by the weight of coated tube 13, 8 stable states arranged side by side parallel to each other, improve and hang down to establishing to organize arm 8 more on supervisor 7, the treatability of the mold cooling tubing A of 8, and the assembly operation assembled in mould installing rack 1A can be carried out smoothly, and the external treatment operations such as the adjustment operation of the configuration status of arm 8 can be carried out efficiently.

And, on supervisor 7 with link and the state be communicated with installs the upper end open portion of arm 8 time, although the lower perimembranous that have employed at the tube wall of supervisor 7 runs through by the configuration space of arm 8 arrange screwed hole (キ リ hole), in described screwed hole, fixedly mount outer peripheral face establish threaded attaching parts quarter, the parts coordinated with these attaching parts are fixed on the other hand in the upper end open portion of each arm 8, and the structure by acorn nut these parts are attached in handling mode freely in above-mentioned attaching parts, but in addition, also the connecting structure etc. based on nipple (nipple) can be adopted.

The mold cooling tubing A of such formation, side mould installing rack 1B side too, as shown in Figure 1, its supervisor 7 along the lower surface in the upper side frame portion in the open end of mould installing rack 1B with the state of the upper end inner surface close to plate 4 after another by horizontal installation, the above-mentioned many arms 8 hung down in curtain shape from supervisor 7 are along the internal surface configurations of rear plate 4 and the position in the lower end portion of plate 4 after making its lower end arrive, and, on the tube wall of supervisor 7, perimembranous is projecting upward two (also can be more than three) flexible pipe connection short tubes 10, 10, flexible pipe connects with short tube 10, 10 are separated by predetermined distance, and their lower ends are communicated with in pipe.In the upper side frame portion of above-mentioned mould installing rack 1B, the interval identical with the interval of described flexible pipe connection short tube 10,10 that be separated by the lateral direction is run through and is provided with inserting hole 11,11, across liner (not shown), described flexible pipe connection short tube 10,10 is inserted in a fluid-tight manner in inserting hole 11,11 respectively, and connect cooling water supplying flexible pipe 12,12 in the upper end outstanding from mould installing rack 1B.

And, as the means of detachably installing rear plate 4,4 on each mould installing rack 1A, 1B, although have employed following means: arrange bolt mounting holes in the peripheral part many places of rear plate 4, on the other hand, the open end of the rear side of mould installing rack 1A, 1B is provided with screwed hole in advance, in this screwed hole, be screwed into construction bolt by bolt mounting holes, but also can adopt other means.

The mould installing rack 1A of above-mentioned pair of right and left, 1B is arranged on fixed mold plate and moveable die plate in handling mode freely respectively, when foaming and molding in known manner after matched moulds, to by matched molds 2A, the foaminess resin particles such as preparation expanded particle are inserted in the chamber 3 that the protuberance 2a of 2B and recess 2b is formed, then to vaporium 5, 5 supply steam also heat, make its second time of foaming, then, by cooling water supplying flexible pipe 12 to mold cooling tubing A, the supervisor 7 of A, 7 supply cooling waters, cooling water is from supervisor 7, 7 are divided to along rear plate 4, the many arms 8 that the inner surface of 4 hangs down, 8 ... in 8, and from the cooling water squit hole 9 of these arms 8 to mould 2A, 2B sprays cooling water and cools.

Now, many arms 8 with the state hung down from the supervisor 7 of horizontal configuration by pipe arrangement, and, these arms 8 have flexibility and the cooling water emission direction being arranged on the multiple squit holes 9 on arm 8 exists off normal, therefore, under the effect of the reaction force of the ejection pressure from squit hole 9, arm 8 is to be responsible for 7 for fulcrum, or with the coated tube 13 being responsible for 7 and below be fulcrum in the lateral direction with the micro-vibration on one side of the mode of shake while from squit hole 9 to mould back side injected cool but water, the position of spraying to the mould back side is made to change on one side whole of cooling die equably in the lateral direction on one side, thus the steady quality of formed products can be sought.By the cooling water etc. after using by link with the lower side frame portion of mould installing rack 1A, 1B and after the outlet 14 be communicated with discharges, die sinking, taking-up expansion-molded article.

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

As the synthetic resin forming above-mentioned foaminess resin particle, such as there are the polystyrene resins such as polystyrene, impact resistant polystyrene (high impact polystyrene), styrene-ethylene copolymers, styrene-modified polyethylene system resin, styrene-maleic anhydride copolymer, SAN, the polyolefin-based resins such as polyethylene, polypropylene, ethylene-vinyl acetate copolymer, the polyester based resins etc. such as PETG.

And, as above-mentioned physical blowing agent, such as, there are the aliphatic hydrocarbons such as propane, butane, pentane, hexane; The alicyclic hydrocarbon type such as pentamethylene, cyclobutane; The halogenated hydrocarbon such as Arcton 11, dicholorodifluoromethane, Dichlorotetrafluoromethane, trichorotrifluoroethane, chloromethane, carrene, chloric ethane.

In addition, when carrying out the replacing of mould, after mould 2A, 2B being unloaded from mould installing rack 1A, 1B of the pair of right and left being provided with mold cooling tubing A, as long as it is upper new mould to be arranged on described mould installing rack 1A, 1B.Now, when installing new mould, from the projecting pillar 6 of described mould or eject pin (eject pin) (not shown) etc. and collide at mould installing rack 1A, 1B upper configuration from mold cooling tubing A, the supervisor 7 of A hang down arm 8 when, as shown in Figure 6, with the state that the mode walking around pillar 6 grade makes arm 8 bend to be locked on to side to make this bend be on the periphery of pillar 6 grade by staff, form this state, by rear plate 4, 4 are arranged on mould installing rack 1A, the upper front end face 6a also engaging above-mentioned all pillars 6 within it on the surface of 1B, thus how masterful technique just can carry out die change operation efficiently not need operator to have.

And, in above-mentioned mold cooling tubing A, as the many arms 8 hung down from supervisor 7, although have employed such structure: bend to U-shaped by making a rectangular synthetic resin pipe at the central portion of its length direction, and the arm that two that form that lower end interconnected by this U-shaped bend 8a parallel to each other, by these two arms 8, 8 form multiple such group as one group, each arm 8, the upper end open portion of 8 and supervisor 7 link in the mode of loading and unloading freely and are communicated with, but also can be following such structure: a synthetic resin pipe with about 1/2 length of above-mentioned rectangular synthetic resin pipe forms arm 8, the upper end open portion of many arms 8 is linked in handling mode freely with supervisor 7 and is communicated with at regular intervals along its length, and by adjacent two arms 8, 8 as one group, as shown in Figure 7, by the arm 8 of each group, between the lower ending opening portion of 8, the junction block 15 by the copper pipe etc. bending to U-shaped with rigidity is connected in demountable mode.Further, also can be not using two arms as one group, but by suitable joint component, the lower end of the arm 8 of more than two is carried out the structure that links, be communicated with.

Fig. 8 is the figure of other the embodiment representing mold cooling tubing, its structure is: do not adopt as above with two arms 8, 8 as the structure of a group, but many are had the arm 8 of certain length, 8 ... 8 separately link with supervisor 7 in handling mode freely at regular intervals along the length direction of this supervisor 7, be communicated with, and arm 8, 8 ... the lower ending opening portion of 8 is with the spacing identical relative to the link spacing of above-mentioned supervisor 7, detachably link, be communicated with on the tube connector 16 of hollow, tube connector 16 length is roughly the same with supervisor 7, and with supervisor 7 configured in parallel, the two ends of tube connector 16 are plugged.

According to the mold cooling tubing formed like this, can provide a kind of and there is the simple and foam forming device of mold cooling tubing at a low price of structure: the weight of the tube connector 16 being arranged on lower end side can be utilized to make all arms 8 have uniform tightening force, keep the state hung down from supervisor 7, to mould installing rack 1A, in 1B smoothly and correctly carry out pipe distribution operation, and by all arms 8, the cooling water importing supervisor 7 is filled in the inside of tube connector 16, in this condition, with the pressure of equalization from all cooling water squit holes 9 be arranged on arm 8 to mould 2A, 2B sprays cooling water, and, the same with the arm 8 shown in above-mentioned Fig. 7, when an arm 8 be damaged or cooling water squit hole 9 blocked and cannot use, directly can use other arm 8 at that, only need change bad arm 8.

In above-mentioned foam forming device, for plate 4,4 after installing in handling mode freely on mould installing rack 1A, 1B, the situation that inner surface along the both sides of described rear plate 4,4 arranges mold cooling tubing A, A is as described above illustrated, but above-mentioned mold cooling tubing A can also be arranged along the inner surface of any one rear plate 4 in the rear plate 4,4 be arranged in handling mode freely on mould installing rack 1A, 1B.

Claims (4)

1. possess a foam forming device for mold cooling tubing, described foam forming device possesses:

Mould, described mould is assembled in mould installing rack in handling mode freely;

Rear plate, described rear plate is arranged on the openend of the rear side of mould installing rack, and the pillar that the back side being locked on described mould is projecting;

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

Mold cooling tubing, described mold cooling tubing is configured in the rear plate side relative with the mould back side,

The feature of described foam forming device is:

Described mold cooling tubing comprise import cooling water supervisor and along this supervisor length direction at regular intervals with its upper end open portion be responsible for link and the state be communicated with from being responsible for the many arms hung down,

Described arm is by bending to U-shaped by one with flexible and elastic recovering force rectangular synthetic resin pipe at the central portion of length direction, and be formed as two arms that lower end interconnects by this U-shaped bend, this two arms are formed multiple groups as one group, the upper end open portion of each arm is made to link with described supervisor, be communicated with

Further, on each arm, be provided with towards the cooling water squit hole of mould backside openings every closely-spaced in the longitudinal direction,

And then, the described bend bending to U-shaped is nested with the coated tube of the U-shaped with rigidity.

2. possess a foam forming device for mold cooling tubing, described foam forming device possesses:

Mould, described mould is assembled in mould installing rack in handling mode freely;

Rear plate, described rear plate is arranged on the openend of the rear side of mould installing rack, and the pillar that the back side being locked on described mould is projecting;

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

Mold cooling tubing, described mold cooling tubing is configured in the rear plate side relative with the mould back side,

The feature of described foam forming device is:

Described mold cooling tubing comprise import cooling water supervisor and along this supervisor length direction at regular intervals with its upper end open portion be responsible for link and the state be communicated with from being responsible for the many arms hung down,

Described arm is made up of the synthetic resin pipe with flexible and elastic recovering force,

On each arm, be provided with towards the cooling water squit hole of mould backside openings every closely-spaced in the longitudinal direction,

Further, using adjacent two arms as one group, connected by the junction block with rigidity bending to U-shaped between the open lower end of each group arm.

3. possess a foam forming device for mold cooling tubing, described foam forming device possesses:

Mould, described mould is assembled in mould installing rack in handling mode freely;

Rear plate, described rear plate is arranged on the openend of the rear side of mould installing rack, and the pillar that the back side being locked on described mould is projecting;

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

Mold cooling tubing, described mold cooling tubing is configured in the rear plate side relative with the mould back side,

The feature of described foam forming device is:

Described mold cooling tubing comprise import cooling water supervisor and along the length direction of this supervisor be set up in parallel at regular intervals and with its upper end open portion be responsible for link and the state be communicated with from being responsible for the many arms hung down,

Described arm is made up of the synthetic resin pipe with flexible and elastic recovering force,

Further, each arm lower ending opening portion and link with the tube connector of hollow of supervisor's configured in parallel, be communicated with.

4. the foam forming device possessing mold cooling tubing according to any one of claim 1 ~ claim 3, is characterized in that:

Arm is made up of fluororesin tubulation.