CN106426722A - Mold and method for manufacturing model - Google Patents

Abstract

A method for manufacturing a model comprises the steps that (1) the interior of a cavity of a foaming mold and foaming raw materials are heated; (2) a partition plate is arranged in the position of a groove of the head and neck portion, a head and neck portion connecting piece is arranged in the position of a round hole of the partition plate, and a positioning rod is inserted; (3) stirring is conducted rapidly, the foaming raw materials are poured into the cavity, and head foam and trunk foam are manufactured; (4) a latex sleeve is sleeved with the cavity of the cured and formed foaming mold; (5) the foaming mold is placed and fixed in a skin mold, the foaming mold and the skin mold are combined, and the positioning rod is inserted to position the foaming mold; (6) a silica gel material is poured into the mold through an injection port; and (7) the skin is cured and molded, and the mold is detached.

Description

A kind of mould for making model and method

Technical field

The present invention relates to a kind of medical teaching field, more particularly to a kind of make head to the mould of trunk model and its Manufacture method.

Background technology

The modelling technique of prior art and method, the mold inner surfaces that makes are rough, the crust for dropping down out Thin and thick differs so that model is rough and uneven in surface, and it cannot be guaranteed that the integrity of model, and the dummy head that makes and cervical region Being an entirety, so that head can not be rotated, and simulation eyeball can not can not be placed in simulation eye position.

In order to solve this problem, in there is provided a kind of manufacture method of model and its needed for mould.

Content of the invention

Set forth above for solving the problems, such as, the present invention provides a kind of mould and its making for making head to trunk model Method.

The technical solution adopted in the present invention is,

A kind of mould for making model, is made using ABS material, including：Foaming mould, crust mould, foaming mould and crust There is the cavity of simulation human body head to chest model in mould respectively, on foaming mould and crust mould, have sprue and row respectively Pore；In foaming mould, incidence position is provided with a groove, and groove is inserted in the middle of one being provided with the dividing plate in hole, dividing plate by head with Trunk is divided into two parts, inserts an incidence connector on dividing plate；Box body extends transversely through the positioning of a positioning head cervical region connector Bar；

Foaming mould eye position has the through hole for placing eyes core, and eyes core is tightly connected a block and passes foaming mould, Block is fixed on mould by pin rod；

Crust mould, through a positioning rod positioning foaming model on box body, including protecgulum box body, bonnet box body and base, base On be provided with the foaming model of they sup-port molding, after be stamped in a block insertion crust mould cavity with sprue；

Further, the void space of described foaming mould is less than the void space of crust mould；

Further, described two side position of groove respectively has a projection；

A kind of model production method, including：

1) foaming mould intracavity and foaming raw material heating, temperature threshold scope is 38 degree～42 degree；

2) incidence groove location places dividing plate, places incidence connector, and insert locating rod on dividing plate circular hole position；

3) quickly stir and pour step 1 into）In foaming raw material；

4) ripening foaming raw material forms foaming model, is pruned after ripening, and in one rubber finger sleeve of groove inner sleeve；

5) by 4）In foaming model be put into and be fixed in crust mould, merge crust mould, insertion locating rod positioning foaming Model；

6) silica gel material is poured into by sprue；

7）Crust forming and hardening, removes mould；

Further, the curing time of described foaming model is 20～30 minutes；

Further, the mixing time of described foaming is less than 15 seconds, pours the mould time into less than 10 seconds, and the whole time can not surpass Spend 25 seconds；

Further, at 25 degrees c, hardening time is 2.5 hours to described crust.

The beneficial effects of the present invention is, the effect of the model that foams is to play support, loss of weight, reduces crust silica gel consumption drop Low cost, Anatomical orientation；Crust is made using disposable low-pressure injection method, can improve the globality of crust outward appearance, is reduced Die parting line, it is ensured that the concordance of product, and the model for completing can left rotation and right rotation, and place simulation eyeball, it is also possible to Simulation eyeball is changed at any time according to different demands.

Description of the drawings

Accompanying drawing 1 is foaming mould structural profile schematic diagram of the present invention.

Accompanying drawing 2 is foaming mould structure expanded schematic diagram of the present invention.

Accompanying drawing 3 is crust mould structure outside drawing of the present invention.

Accompanying drawing 4 is crust mould structure generalized section of the present invention.

Accompanying drawing 5 is crust mould structure expanded schematic diagram of the present invention.

Accompanying drawing 6 is crust mold base top view of the present invention.

Wherein, 1, foaming mould；3rd, cavity；101st, protecgulum；102nd, bonnet；103rd, groove；104th, acrylic dividing plate；105、 Incidence connector；106th, raised；107th, locating rod；1081st, head sprue；1082nd, trunk sprue；1091st, head row Pore；1092nd, trunk steam vent；110th, eyes core；111st, support bar；112nd, block；113rd, pin rod；114th, mould fix bar

2nd, crust mould；4th, cavity；201st, base；202nd, front lid；203rd, rear lid；5th, foam model；205th, sprue； 206th, block；207th, steam vent；208th, locating rod；209th, rubber finger sleeve；210th, eyes mandrel cavity；211st, crust space；212nd, prop up Strut；213rd, mould fix bar；214th, incidence connector；215th, groove；216th, block chamber；217th, eyeball through hole is simulated.

Specific embodiment

Below according to accompanying drawing, the invention will be further described：

As shown in Figure 1 and Figure 4, a kind of mould for making model includes：Foaming mould 1 and crust mould 2；Foaming mould 1 is with outward The cavity of human body head to chest model is simulated in skin mould 2 respectively, and the cavity 3 of foaming mould 1 is less than the cavity of crust mould 2 4；

Wherein, as depicted in figs. 1 and 2, foaming mould 1 is the box body using " convex " font structure, by protecgulum 101 and bonnet 102 Two parts constitute, and 1 cavity of foaming mould, 3 bottom is provided with support bar 111, for the foaming mould 204 that fixation is made（As Fig. 5 institute Show）, protecgulum 101 and bonnet 102 are tightly locked using the mutual matched moulds of mould fix bar 114；Incidence position is provided with a groove 103, Groove 103 is inserted into setting round-meshed acrylic dividing plate 104 in the middle of one, and head and trunk are divided into two by acrylic dividing plate 104 Point, a cylinder head cervical region connector 105 is inserted at 104 center of acrylic dividing plate；Respectively there is a projection described 103 both sides of groove 106, the effect of the projection 106 is that 204 cervical region of foaming model of molding is formed two grooves 215（As shown in Figure 5）；

101 head position side of protecgulum extends transversely through 107 setting circle column type incidence connector 105 of a positioning rod；

The eye position of protecgulum 101 has two through holes for placing eyes core 110, and 102 head position of bonnet has a head note Material mouth 1081, is placed and one 112 is tightly connected with eyes core 110, the effect of described eyes core 110 and block 112 be by The eye position of the foaming model 204 of molding is cavity, can place different simulation eyeballs according to different demands；

Block 112 is fixed on box body bonnet 102 by pin rod 113；

The trunk position of bonnet 102 has two trunk sprues 1082 and three trunk steam vents 1092, the head of box body bonnet 102 Position is equipped with two head vent holes 1091, and when carrying out the foaming making of model 204, mould keeps flat makes head vent holes 1091 and body Dry steam vent 1092 is upwards；

As shown in Figure 3 and Figure 6, crust mould 2, a cube structure box body, 201 concave structure of base, front lid 202 and back box Lid 203 is fixed on base 201 by mould fix bar 213, and base is provided with steam vent 207 at 201 bottom crust space 211, 202 eye position of front lid is provided with simulation eyeball through hole 217, and 210 insertion of eyes mandrel cavity, for making crust eyes sky Between, sealed groove is additionally provided with front lid 202（In figure is not given）, as shown in Figure 4 and Figure 5, on rear lid 203, it is plugged with one Block 206 with sprue 205；Be additionally provided with base 201 support bar 212 support foaming model 204, with base 201 it Before leave gap.

As shown in figure 5, foaming model 204 is the foaming model 204 that is made using foaming mould 1, there is head incidence position Cervical region connector 214, can make head left rotation and right rotation, and two grooves 215 of incidence position are used for fixing rubber finger sleeve 209（Such as Fig. 4）, it is ensured that when crust is made, silica gel is may not flow in incidence connector 214；

As shown in figure 4, foaming model 204 is placed on the base 201 of crust mould 2, and merge front lid 202 and rear lid 203 Afterwards, with the cavity 4 of crust mould 2, a crust gap 211 is formed, the crust gap 211 is connected with sprue 205；

Before making model, first 1 intracavity of foaming mould and foaming raw material are heated, temperature threshold scope is 38 degree～42 degree, preferably Temperature is 40 degree；Foaming raw material is polyurethane foam material；

First, head frothing part being made, foaming mould 1 is assembled, one is inserted in the groove 103 of 101 incidence position of protecgulum Individual acrylic dividing plate 104, cheese head cervical region connector 105 is inserted at the center of acrylic dividing plate 104, is fixed by 111 and is merged Bonnet 102, inserts 107 positioning cylinder forming head cervical region connector 105 of locating rod in head position, foaming mould upside down and put, make Head vent holes 1091 upward, inject 1260 grams of head expanded materials being stirred, in stirring from the sprue 1081 of bonnet 102 During, the time must not exceed 15 seconds, and the time for pouring foaming into must not exceed 10 seconds, it is desirable to pour cavity before foamed solidification into Interior, as incidence position is provided with an acrylic dividing plate 104, make polyurethane foam material may not flow into trunk；

Secondly, trunk frothing part being made, 2100 grams of trunk expanded materials is poured into from the sprue 1028 of bonnet trunk position, In whipping process, mixing time must not exceed 15 seconds, and the time for pouring foaming into must not exceed 10 seconds, pour into before foamed solidification In cavity 3.

When foaming mould is made, overall time must not exceed 25 seconds（The time is using hand operated mixing and to pour into required Time, the such as miscellaneous equipment time according to agitator etc is less than 25 seconds）, treat the foaming model ripening of or so half an hour Afterwards, taking out internal foaming model 204 carries out pruning burr, recessed in the foaming dummy head of molding and the neck junction of trunk The rubber finger sleeve 209 of one 70mm length of groove inner sleeve（Shown in Fig. 4）, it is ensured that silica gel may not flow into incidence connector 214（Shown in Fig. 5） Interior；

Crust shown in Fig. 5 makes, and the foaming model 204 that is made by internal foaming mould is fixed on the base of crust mould On 201, eye locations place simulation eyeball, place sealing ring, and merge front lid 202 and rear lid 203, insert in sealed groove Enter the positioning foaming model 204 of head positioning bar 208, and crust mould 2 is locked, handstand mould, make steam vent 207 upward, from Sprue 205 injects appropriate skin material, and crust is under 25 degree of room temperature, and hardening time is 2.5 hours aftershapings.

Block mold completes, the replaceable different simulation eyeball of the block mold for completing（In figure is not given）.

The effect of the inside foaming of the present invention is to play support, loss of weight, reduces crust silica gel consumption reduces cost, and it is fixed to dissect Position；Crust is made using disposable low-pressure injection method, can improve the globality of crust outward appearance, reduces die parting line, it is ensured that produced The concordance of product.

Claims (4)

1. a kind of mould for making model, including：There is mould respectively in foaming mould, crust mould, foaming mould and crust mould Intend the cavity of human body head to chest model, on foaming mould and crust mould, have sprue and steam vent respectively；Crust mould Including front lid, back box lid and bottom seat；

Characterized in that,

Foaming mould is provided with a groove, and groove is inserted into a dividing plate, inserts a connection piece on dividing plate；On mould through a positioning even The locating rod of fitting；

Foaming mould eye position has the through hole for placing eyes core, and eyes core is tightly connected a block and passes foaming mould, Block is fixed on mould by pin rod；

Crust mould, runs through a positioning rod on mould, is provided with the foaming model of they sup-port molding on base, and back box is stamped In the one block insertion crust mould cavity with sprue, front lid eye position is provided with simulation eyeball through hole.

2. a kind of mould for making model according to claim 1, it is characterised in that the cavity of described foaming mould is little Cavity in crust mould.

3. a kind of mould for making model according to claim 1, it is characterised in that described two side position of groove respectively has One is raised.

4. a kind of model production method, it is characterised in that

1) foamable mould cavity and foaming raw material, temperature threshold scope is 38 degree～42 degree；

2) incidence groove location places dividing plate, places incidence connector, and insert locating rod on dividing plate circular hole position；

3) stir and step 1 poured into by sprue) in foaming raw material make respectively head foaming and trunk foaming；

4) ripening 3) foaming raw material in step forms foaming model, in foaming model groove one rubber finger sleeve of inner sleeve；

5) by 4）In foaming model be put into and be fixed in crust mould, merge crust mould, insertion locating rod positioning foaming Model；

6) silica gel material is poured into by sprue；

7) solidification silica gel material forms crust model, removes mould, takes out model.