JP2012011613A - Molding mold and method of molding molded article - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a molding mold capable of manufacturing molded articles having different widths without occurrence of seam lines in designed surfaces of the obtained molded articles by using the first mold and the second mold in common.SOLUTION: The molding mold 1 includes the first mold 2 and the second mold 3 each having an inside surface capable of forming a cavity C for molding of a synthetic resin on mold clamping, the first cavity insert 6 to be attached to the first mold 2 in a removable way in the cavity C and the second cavity insert to be attached to the second mold 3 in a removable way in the cavity C. In the first mold 2, a cavity surface CA for the designed surface used to form a designed surface PA of a molded article P is formed with a maximum width Lx in a level-difference-free flat form in the product, and, in the second mold 3, a cavity surface CB for the back surface used to form a back surface PB of the molded article P opposite to the designed surface PA is formed with a minimum width Lm in the product.

Description

  The present invention relates to a molding die comprising a first mold body and a second mold body each having an inner surface that forms a cavity for molding a synthetic resin by closing the mold, and a nest disposed in the cavity. And a molding method of a molded product using the same.

Conventionally, what was disclosed by the following patent document 1 is known as this kind of metal mold | die. The molding die disclosed in Patent Document 1 includes a common first mold body and second mold body by a configuration in which a split insert is placed in a cavity formed between the first mold body and the second mold body. It is intended to obtain molded products having different dimensions and shapes while being used.
However, in the technology disclosed in Patent Document 1, since there is an abutting portion between the split inserts on the cavity surface for the design surface for forming a design surface that is easily noticeable of the molded product, Seam lines may occur on the design surface.

  On the other hand, moldings having different width dimensions are obtained by forming inserts at one or both ends in the cavity formed between the first mold body and the second mold body and molding the synthetic resin. A molding method is conceivable. A molding die that can be used in the molding method is shown in FIG. The illustrated mold 51 includes a first mold body 52 and a second mold body 53 each having an inner surface capable of forming a cavity C for molding a synthetic resin by closing the mold, and a second mold body in the cavity C. 53, and a second mold insert 54 that is detachably attached to both ends. The design surface cavity surface CA of the first mold body 52 is a surface for forming the design surface PA of the molded product P, and the back surface cavity surface CB is a surface for forming the back surface PA of the molded product P. In the molding die 51, the second mold insert 54 is not used when the molded product P having the maximum product width Lx is manufactured. On the other hand, the second mold insert 54 is used when the molded product P having the minimum product width Lm is manufactured. In this case, the second mold insert 54 is provided on the upper surface of the second mold 53 at one end or both ends in the cavity C, and is fastened by a bolt 56 screwed into the female screw hole 55 of the second mold 53. Fixed. In this molding die 51, the molded product P having different width dimensions is obtained by inserting or removing the second mold insert 54 into the cavity C.

JP-A-9-216252 (paragraphs [0018] to [0022], FIGS. 3 to 5).

However, in the molding die 51 described above, if there is a gap between the upper surface of the second mold insert 54 and the opposing surface CAA of the first mold body 52, the design surface of the part used for actual molding is used. The cavity surface CA and the counter surface CAA have different surface states due to repeated molding. Therefore, in the molded product P having the maximum product width dimension Lx, the glossiness of the design surface PA is different between the portion molded with the design surface cavity surface CA and the portion molded with the counter surface CAA. The uniformity of the surface state may be impaired. In addition, since the synthetic resin material flows into the gap and generates burrs at the corners PC of the molded product P, there is a problem in that the appearance of the molded product P is impaired, and time and effort for removing the burrs are wasted.
On the other hand, in the sink of the system kitchen and the wash counter of the wash unit,
Artificial marble resin molded products are used. In addition, since there are large and small floor plans for kitchens and washrooms, there are various customer needs regarding the left and right width dimensions. Therefore, in order to obtain a molded product P having several width dimensions, it is conceivable to prepare a plurality of mold sets of the first mold body 52 and the second mold body 53 having different cavity widths. However, preparing a plurality of sets of the first mold body 52 and the second mold body 53 that are expensive and heavy in weight leads to an increase in manufacturing cost, and the work for replacing the mold set with respect to the molding apparatus is also very troublesome. Will take.

  The present invention has been made in view of the above-described conventional problems, and is obtained by using a common first mold body and a second mold body and arranging appropriate inserts in the cavities. It is an object of the present invention to provide a molding die and a method for molding a molded product that can produce molded products having different width dimensions without producing a seam line on the design surface of the molded product.

  In order to achieve the above object, a molding die according to the present invention includes a first mold body and a second mold body each having inner surfaces capable of forming a cavity for molding a synthetic resin by closing the mold, In the molding die having the first mold insert detachably attached to the first mold body and the second mold insert detachably attached to the second mold body in the cavity, In the first mold body, the cavity surface for the design surface for forming the design surface of the molded product is formed flush with the maximum product width dimension, and the second mold body has a back surface opposite to the design surface of the molded product. When a back cavity surface for molding is formed with a minimum product width dimension, and a molded product with a width dimension shorter than the maximum product width dimension is obtained, a first cavity is provided on one end side of the design cavity surface. Mold inserts are attached and molded products with a width longer than the minimum width of the product. That is when are the configuration for the second type nesting is attached to the one end face of the back cavity surface of the second type body. The design surface according to the present invention is the surface most noticeable to the user, and refers to a mirror surface finish, matte finish, non-slip unevenness, a surface provided with a pattern, or a decorative surface.

  Moreover, in the said structure, it is formed in the end surface insert for shape | molding the end surface of the one end side of a molded article, and the one end side of the cavity surface for design surfaces in a 1st type body, and accommodates the insert for end surfaces so that attachment or detachment is possible. It is provided with a pocket for nesting attachment.

  And in each above-mentioned structure, the 1st type | mold insert and the end face insert are provided with the integral insert integrally comprised.

  In addition, a step portion in which an upper portion of the first mold insert is notched is formed at the other end portion of the first mold insert, and one end of the design surface cavity surface of the first mold body is formed at the step portion. A mover that closes the side is arranged so as to be close to and away from the design surface cavity surface, and includes a pushing member that pushes the mover toward the design surface cavity surface.

  Furthermore, the molding method of the molded product according to the present invention is to use a molding die according to any one of claims 1 to 3 and obtain a molded product having a width dimension shorter than the maximum product width dimension. The first mold insert or integral insert is attached to one end of the design cavity surface of the first mold body and the synthetic resin in the cavity is molded, and the molded product has a width dimension longer than the product minimum width dimension. Is obtained, the second mold insert is attached to the end face on one end side of the back cavity face in the second mold body to mold the synthetic resin in the cavity.

  According to the molding die and the molding method for molding according to the present invention, the design surface cavity surface is formed flush with the product maximum dimension in the first mold body, so that it is longer than the product minimum width dimension. When obtaining a molded product having a width dimension, the second mold insert can be attached to the end surface on one end side of the back cavity surface of the second mold body to mold the synthetic resin material in the cavity. In this case, since the design surface of the molded product is formed by the design surface cavity surface of the first mold body which is flush, a seam line or the like is not generated in the flat portion of the design surface. On the other hand, when a molded product having a width smaller than the maximum product width is obtained, the first mold insert or the integrated insert is attached to one end side of the design cavity surface of the first mold so that the composition in the cavity is synthesized. A resin material can be molded. In this case, the mating portion of the first mold insert or the integral insert and the first mold body is located at one end side corner of the molded product, so that no joint line or the like is generated on the design surface. That is, according to the molding die of the present invention, a common first mold body and second mold body can be used, and no seam line is generated in the flat portion of the design surface of the obtained molded product. . In particular, molded articles with different width dimensions can be produced.

  Also, an end face insert for forming the end face on the one end side of the molded product, and an insert attachment formed on one end side of the cavity surface for the design face in the first mold body to detachably accommodate the end face insert A device provided with a pocket can prevent displacement of the end surface insert during the molding operation. Thereby, since a shaping | molding precision becomes high, a good-looking molded product can be obtained.

  Further, even when the first type insert and the end face insert are provided with an integral insert, the displacement of the integral insert during the molding operation can be prevented. Thereby, since a shaping | molding precision becomes high, a good-looking molded product can be obtained.

  Further, a movable element that can be moved close to and away from the design surface cavity surface is disposed at the step portion of the first mold insert, and includes a pushing member that pushes the movable element toward the design surface cavity surface. The product is used when obtaining a wash counter with the minimum width of the product. After attaching the first mold insert to the first mold body, the pusher is operated to move the mover into the cavity surface for the design surface. When moving toward the surface, the mover comes into close contact with the cavity surface for the design surface. When the molding operation is performed in this state, the synthetic resin material does not enter between the mover and the design surface cavity surface of the first mold body. Therefore, a very beautiful molded product can be obtained. Moreover, the cleaning work at the time of nest exchange can be simplified.

It is the components side view which decomposed | disassembled the metal mold | die concerning one Embodiment of this invention. The 1st type | mold body of the said metal mold | die for the said shaping | molding is shown, (a) is a bottom view of a 1st type body, (b) is a bottom view of the multiple types of nesting attached to a 1st type body. It is an external view of the 2nd type | mold body of the said metal mold | die, and the 1st type | mold insert. It is the sectional view on the AA line in FIG. 3 which shows the state which attached the integral insert to the 1st type body of the said metal mold | die, and closed the 2nd type body. It is an external view of the wash counter shape | molded with the said metal mold | die. It is an external view of the 2nd type insert and end face insert of the said metal mold | die. It is the BB sectional drawing in FIG. 6 which shows the state which attached the end type insert to the 1st type body of the said metal mold | die, and attached the 2nd type insert to the 2nd type body, and closed the mold. It is a fragmentary front sectional view which shows the state which closed the mold for shaping | molding which concerns on another embodiment of this invention. It is a front view of the integral nest used for the metallic mold for mold concerning other embodiments of the present invention. It is a fragmentary front sectional view which shows the state which closed the metal mold | die concerning the said other embodiment. It is a partial front sectional view showing a state in which a conventional molding die is closed.

Embodiments of the present invention will be described with reference to the drawings. The embodiment described below is merely an example embodying the present invention, and does not limit the technical scope of the present invention. 1 is an exploded side view of a molding die according to an embodiment of the present invention, FIG. 2 shows a first mold body of the molding die, (a) is a bottom view of the first mold body, (B) is a bottom view of a plurality of types of inserts attached to the first mold body, FIG. 3 is an external view of the second mold body and the first mold insert of the molding die, and FIG. It is the sectional view on the AA line in FIG. 3 which shows the state which attached the integral insert to the 1st type body of the metal mold | die, and closed the 2nd type body.
In each drawing, a molding die 1 according to this embodiment is provided in a compression molding apparatus of, for example, a 1500 ton class, and is used for molding a wash counter P (example of molded product). The molding die 1 has a second mold body 3 on a fixed side installed on an apparatus base (not shown) and a second mold body which is disposed above the second mold body 3 so as to be movable up and down. The first mold body 2 on the moving side that is closed between the first mold body 2, the integral insert 9 that is detachably attached to the first mold body 2 in the cavity C, and the second mold body 3 in the cavity C It has the 2nd type | mold insert 8 attached so that attachment or detachment is possible. In FIG. 1, reference numeral 34 denotes a through hole through which a bolt for fixing the integral insert 9 to the first mold body 2 is inserted. Further, reference numerals 28, 30, and 33 in FIG. 1 are constituent elements of an integral nest 9A described later, and will be described with reference to FIGS.

  A design surface cavity surface CA that forms a part of the cavity C is formed on the lower surface of the first mold body 2, and an insert mounting recess 4 is formed on the upper surface of the second mold body 3. . On the left and right sides of the left and right end portions of the design surface cavity surface CA of the first mold body 2 are insert mounting pockets 10 and 10 for detachably storing end surface inserts 7 which will be described in detail later. It is formed in the shape of a U-shaped groove that is depressed. The above-described integral insert 9 is integrally formed of a portion corresponding to the first mold insert 6 and a portion corresponding to the end face insert 7. The boundary between the portion corresponding to the first type insert 6 and the portion corresponding to the end face insert 7 is indicated by a one-dot chain line in the figure. A portion corresponding to the first mold insert 6 in the integral insert 9 is detachably mounted on the design surface cavity surface CA of the first mold body 2 and fixed with a bolt or the like. The portion corresponding to the end insert 7 in the integrated insert 9 is detachably accommodated in the insert mounting pocket 10 of the first mold 2 and is fixed by a bolt or the like. The portion corresponding to the end surface insert 7 is for forming the left and right end surfaces 11 of the wash counter P. The integral insert 9 may be made of the same type of metal as that of the first mold body 2 and is made of a material having a lower hardness than the first mold body 2 such as aluminum, copper, brass, hard synthetic rubber, and hard synthetic resin. You may comprise. In addition, aluminum, copper, brass, synthetic resin, rubber, or the like may be attached or coated in a range in contact with the design surface cavity surface CA of the integral insert 9.

  As described above, the design surface cavity surface CA formed on the lower surface of the first mold body 2 is for molding the design surface (upper surface) PA of the wash counter P. The design surface cavity surface CA is formed in a predetermined product maximum width dimension Lx (for example, 1200 mm) in the left-right direction. Of the design surface cavity surface CA, the surface for molding the left and right side portions of the water receiving portion 35 (see FIG. 5) in the wash counter P is formed flat on the entire surface. On the upper surface of the second mold 3, a back surface cavity surface CB for forming a back surface (lower surface) PB opposite to the design surface PA of the wash counter P is formed. The back surface cavity surface CB is formed with a predetermined minimum product width dimension Lm (for example, 750 mm). The back surface cavity surface CB is also a part of the surface forming the cavity C described above.

  Depending on the product width dimension L of the wash counter P, a plurality of types of nests are provided at the left and right ends of the design surface cavity surface CA of the first mold body 2. For example, as shown in FIG. 2 (b), an integral insert 20 (having a portion corresponding to the end insert 7) for forming a wash counter P having a product width L = 900 mm, and a product width L = 1000 mm. Integrated insert 21 for forming the wash counter P (having a portion corresponding to the end insert 7), integrated insert 9 for forming the wash counter P with the minimum product width Lm = 750 mm, and the maximum product width Lx = Nest 7 for an end surface for forming a wash counter P of 1200 mm. On the left and right ends of the back surface PB facing the insert mounting recess 4 in the second mold 3, there are recesses 13 and 13 for forming the left and right laterally hanging portions 19 of the wash counter P having the minimum product width Lm, respectively. Is formed. The concave portion 13 is closed by the convex portion 16 of the second type insert 8 when it is attached to the insert mounting recess 4. As shown in FIG. 6, the second mold insert 8 is formed to be depressed on the base portion 22 fitted on the bottom surface of the insert mounting recess 4 of the second mold body 3 and the upper end portions on the left and right ends. A recess 14 for forming the sag portion 15 of the wash counter P having the maximum product width Lx, a protrusion 16 projecting from the upper end on the other end opposite to the recess 14, and a back surface cavity Surface CB. The end surface insert 7 is formed in a rectangular thick plate shape, and its thickness is set to a dimension that can be fitted into the insert mounting pocket 10 of the first mold 2.

Next, the operation of the molding die 1 configured as described above will be described. Here, a wash counter P made of artificial marble is manufactured.
First, the case of obtaining a wash counter P having a product width dimension L shorter than the maximum product width dimension Lx (1200 mm) will be described. First, the integral insert 21 having the first mold insert 6 (for example, product width dimension L = 1000 mm), the integral insert 20 (for example, product width dimension L = 900 mm), or the integral insert 9 (for example, product width dimension L) = 750 mm) is prepared on the left and right, and attached to one end side and the other end side of the design cavity surface CA of the first mold body 2 with bolts or the like. Here, an example will be described in which a wash counter P having a product minimum width Lm is obtained using a pair of left and right integrated inserts 9 and 9. It is assumed that the first mold body 2, the second mold body 3, and the integral inserts 9 and 9 are heated to a predetermined temperature prior to the molding operation. As the synthetic resin material, a paste-like block molding material (abbreviated as BMC) is used. This BMC is a commercial product for artificial marble, and is composed of, for example, unsaturated polyester, low shrinkage agent, aluminum hydroxide, short glass fiber, zinc stearate, magnesium oxide, benzoyl peroxide, etc. It is.

Therefore, a required amount of BMC is placed on the back surface cavity surface CB of the second mold body 3, and the first mold body 2 and the second mold body 3 are closed. Then, as shown in FIG. 4, the end surfaces 12, 12 at the left and right end portions of the second mold body 3 are in close contact with the other end-side end surfaces of the integrated molds 9, 9 corresponding to the first mold insert 6. Thereby, it is between the cavity surface CB for back surfaces of the 2nd type | mold body 3, the cavity surface CA for design surfaces of the 1st type body 2, and the other end side end surface (left-right inner end surface) of the left-right integrated inserts 9 and 9. A sealed cavity C is formed. Then, the BMC fills the cavity C by the pressure and temperature in the mold at this time, and the wash counter P having the product minimum width Lm, which is a molded product, is molded. In this case, the end surfaces 17 of the left and right laterally hanging portions 19 are formed by end surfaces of the integral inserts 9, 9 corresponding to the first type insert 6. The BMC may be molded under ordinary conditions, for example, a molding temperature of 120 to 140 ° C., a molding pressure of 50 to 100 kg / cm ² , and a curing time of 3 to 6 minutes.

As shown in FIG. 5, the wash counter P thus obtained has a design surface PA formed by a cavity surface CA for the design surface of the cavity C on its upper surface, and a cavity surface CB for the back surface of the cavity C on its lower surface. A back surface PB is formed. Further, left and right concave portions 13 and 13 of the second mold 3 and side hanging portions 19 and 19 corresponding to the first mold inserts 6 and 6 corresponding to the first inserts 9 and 9 are provided at both left and right ends of the wash counter P. The water receiving part 35 is formed in the left and right center part, and the front hanging part 36 is formed in the front side.
As described above, according to this molding die 1, the wash counter P is formed by attaching the integral insert 9 to the first mold body 2, so that both end portions of the design surface PA are the corner portions 18 of the wash counter P. , 18 are formed. Therefore, the mating portion of the first mold body 2 and the first mold insert 6 is not arranged on the flat design surface PA of the wash counter P. Therefore, an inconvenient seam line does not appear in the flat portion of the design surface PA of the wash counter P, and the wash counter P having the design surface PA having a good appearance can be obtained.

  Secondly, the case where the wash counter P having the maximum product width Lx (1200 mm) is obtained from the above-described assembled state will be described. First, the integral insert 9 is removed from the first mold body 2. Subsequently, as shown in FIGS. 6 and 7, the single end surface insert 7 is fitted into the insert mounting pocket 10 of the first mold 2 and fixed with a bolt or the like. On the other hand, the base portion 22 of the second mold insert 8 is fitted into the insert mounting recess 4 of the second mold body 3 and fixed with bolts or the like. At this time, the side surfaces of the second mold inserts 8 and 8 at the left and right inner ends are in close contact with the end surfaces 12 and 12 of the second mold plate 3 on the left and right ends, and the convex portion 16 of the second mold insert 8 is The second template 3 is fitted into and closely attached to the recess 13. At this time, the mating portion between the upper end of the convex portion 16 and the upper end of the concave portion 13 is the connecting portion 23 of the back surface cavity surface CB.

  Therefore, the first mold body 2 and the second mold body 3 are closed by placing the BMC on the back surface cavity surface CB of the second mold body 3 and the second mold insert 8. Then, the lateral surfaces of the left and right second type inserts 8, 8 are in close contact with the end surfaces 7 A, 7 A of the end surface insert 7. Thereby, the cavity surface CB for the back surface of the second mold body 3 and the second mold insert 8, the cavity surface CA for the design surface of the first mold body 2, the end faces 7A, 7A of the left and right end face inserts 7,7. Cavity C is formed between the two. At this time, the BMC is filled in the cavity C by the above-described pressure and temperature in the mold, and the wash counter P having the maximum product width Lx is formed.

As described above, according to the molding die 1, the end face insert 7 is attached to the first mold body 2, and the second mold insert 8 is attached to the second mold body 3 to form the wash counter P. Therefore, the design surface PA of the wash counter P is formed flat and beautifully by the design surface cavity surface CA which is wide and flush, and no seam line or the like is generated. On the other hand, the back surface PB of the wash counter P is formed by the back surface cavity surface CB of the second mold 3 and the back surface cavity surface CB of the second mold insert 8. At this time, the boundary portion between the back cavity surface CB of the second mold 3 and the back cavity surface CB of the second mold insert 8 becomes the connecting portion 23. Due to the presence of the connecting portion 23, a seam line may appear on the back surface PB of the wash counter P. However, even if a seam line appears on the back surface PB, the seam line is not visible from the outside, so there is no problem as a product.
That is, according to the molding die 1, the wash counter P having various width dimensions L can be manufactured by the common first mold body 2 and third mold body 3 only by replacing the insert. Moreover, any of the wash counters P having various product width dimensions L can be obtained as a good-looking product with no seam line appearing on the design surface PA that is noticeable by the user.

  In the embodiment described above, the integrated counter 9 is used to obtain the wash counter P having the minimum product width Lm. However, the present invention is not limited to this, and for example, as shown in FIG. It is also possible to use a first mold insert 6A having no portion corresponding to the insert 7 and a second mold body 2A having no insert mounting pocket 10. Even when this first mold insert 6A is used, both end portions of the design surface PA become corner corners of the wash counter P, so the mating portion of the first mold body 2A and the first mold insert 6A Does not appear on the design surface PA of the wash counter P.

  Moreover, the improvement of the integral insert 9 as shown in FIG. 9 is also included in the present invention. The integral insert 9A includes an end face insert 7 equivalent portion, a first mold insert 6B equivalent portion, and a movable element 30 included in a part of the first mold insert 6B. . The side part extending in the front-rear direction at the inner end in the left-right direction of the first mold inserts 6B, 6B arranged at the left and right end parts of the first mold body 2 has a step part 25 formed by notching the upper side. Yes. The stepped portion 25 is formed with female threaded portions 26 at a plurality of positions spaced apart from each other. Further, a plurality of female screw portions 31 penetrating vertically are formed at positions other than the female screw portions 26, 26 in the step portion 25. Then, a rectangular bar-like movable element 30 that is long in the front-rear direction is placed on the step portion 25. The upper surface of the movable element 30 in contact with the step portion 25 is located at a position lower than the upper surface of the first mold insert 6B. In the movable element 30, through holes 29, 29 are formed through the top and bottom at positions facing the female screw portions 26, 26 of the step portion 25. Bolts 28 and 28 are loosely fitted in these through holes 29 and 29, respectively, and the male screw portions 27 and 27 of the bolts 28 and 28 are screwed to the female screw portions 26 and 26 of the first type insert 6B. . Thereby, the mover 30 can be moved close to and away from the design surface cavity surface CA while being positioned in the horizontal direction. Further, a male screw portion 32 of a push-up bolt 33 (an example of a pushing member) is screwed into each female screw portion 31 from the lower surface of the first mold insert 6B, and the mover 30 is formed at the tip of the push-up bolt 33. The lower surface of the first mold body 2 is pushed up and pushed toward the design surface cavity surface CA.

  This integral insert 9A is used when obtaining a wash counter P having a minimum product width Lm. That is, as shown in FIG. 10, the integrated nest 9 </ b> A is attached to the first mold 2 with a bolt or the like. After that, each push-up bolt 33 is turned, the male screw portion 32 is screwed, and the tip of the male screw portion 32 pushes the lower surface of the mover 30 to push up the entire mover 30. Thereby, the upper surface 30A of the mover 30 is in close contact with the design surface cavity surface CA of the first mold body 2 and does not cause a slight gap. When the integrated nest 9A and the first mold body 2 and the second mold body 3 in such a state are closed, the mover 30 closes one end side of the design surface cavity surface CA of the first mold body 2. . Therefore, when the molding operation is performed, BMC does not enter between the upper surface 30A of the mover 30 and the design surface cavity surface CA of the first mold body 2 as shown in FIG. 18 will be very beautiful. The constituent material of the mover 30 may be the same type of metal as that of the first mold 2, or may be a material having a lower hardness than the first mold 2, such as aluminum, copper, or brass, or a hard synthetic rubber or a hard synthetic resin. Etc. can also be used. In addition, aluminum, copper, synthetic resin, rubber, or the like may be attached or coated in a range in contact with the design surface cavity surface CA of the mover 30.

In the above description, the molding die 1 for manufacturing the wash counter P having the laterally hanging portions 15 and 19 is exemplified. However, the molding die for manufacturing a molded product having no laterally hanging portions 15 and 19 is provided. However, it goes without saying that both ends of the design surface become corner corners of the molded product when the product has the maximum width dimension, and both ends of the design surface become corner corners of the molded product even when the product has the minimum width dimension Lm. Therefore, there is no case where the joint line due to the mating portion of the mold body and the insert appears on the design surface of the molded product.
Further, in the above, the end surface insert 7 and the integrated inserts 9, 9A, 20, and 21 are attached to the first mold body 2 or the second mold body 3 as a pair on the left and right sides, but only one of each. Even if it is attached to either one of the left and right end portions, molded products having different width dimensions can be obtained.
And as a molded product manufactured with the metal mold | die for shaping | molding of this invention, not only said wash counter but the molded product of another kind may be sufficient.
Furthermore, in the above, an example in which the molding die of the present invention is applied to the compression molding method has been shown. However, the molding of the present invention can be applied to other molding methods such as an injection molding method, a transfer molding method, and a blow molding method. It is also possible to apply a metal mold.

DESCRIPTION OF SYMBOLS 1 Mold for mold 2 1st mold body 2 2nd mold body 6,6A, 6B 1st mold insert 7 End surface insert 8 2nd mold insert 9,9A, 20,21 Integrated insert 10 Insert Child mounting pocket 11 End face 12 End face 25 Step part 30 Movable element 31 Female thread part 32 Male thread part 33 Push-up bolt C Cavity CA Design surface cavity surface CB Back surface cavity surface P Wash counter (molded product)
PA Design surface PB Back surface Lx Maximum product width Lm Minimum product width

Claims (5)

A first mold body and a second mold body each having an inner surface capable of forming a cavity for molding a synthetic resin by closing the mold; and a first mold insert detachably attached to the first mold body in the cavity; In a molding die having a second mold insert detachably attached to the second mold body in the cavity,
In the first mold body, the cavity surface for the design surface for forming the design surface of the molded product is formed flush with the predetermined product maximum width dimension, and the second mold body is on the side opposite to the design surface of the molded product. When the back surface cavity surface for forming the back surface is formed with a predetermined minimum product width dimension, one end of the design cavity surface of the first mold body is obtained when a molded product having a width shorter than the maximum product width dimension is obtained. The first mold insert is attached to the side, and when a molded product having a width longer than the minimum product width is obtained, the second mold insert is formed on the end face of the second mold body on one end side of the back cavity surface. Mold for molding, characterized in that can be attached. An end face insert for forming the end face on one end side of the molded product, and an insert mounting pocket formed on one end side of the cavity surface for the design face in the first mold body to detachably accommodate the end face insert The molding die according to claim 1, comprising: The molding die according to claim 2, comprising an integral insert in which the first mold insert and the end face insert are integrally formed. A step portion in which an upper portion of the first mold insert is notched is formed at the other end portion of the first mold insert, and one end side of the design surface cavity surface of the first mold body is formed on the step portion. The movable member for closing is disposed so as to be close to and away from the cavity surface for the design surface, and includes a pushing member that pushes the movable member toward the cavity surface for the design surface. Mold for molding according to item. When using the molding die according to any one of claims 1 to 4 to obtain a molded product having a width shorter than the maximum product width, a first mold insert or a single insert Is attached to one end side of the design cavity surface of the first mold body to mold the synthetic resin in the cavity, and when obtaining a molded product having a width dimension longer than the minimum product width dimension, insert the second mold insert. A method for forming a molded product, comprising: attaching a synthetic resin in a cavity to an end surface on one end side of a cavity surface for back surface in a second mold body.

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