JP5703473B2 - Molded member in which two or more molded parts are integrally molded through one connecting body - Google Patents

Description

  The present invention relates to a molded member in which two or more molded parts are integrally formed through one connecting body.

  In injection molding and bead foam molding, in order to mold a large number of molded parts at once, a mold having a plurality of cavities on both the left and right sides of the runner extending from the raw material filling nozzle may be used. . As shown in the plan view of FIG. 9, a molded part 1 obtained by demolding from the molding die in that form is a rod-shaped joint body 2 and a required number of parts integrally molded on one side of the joint body 2. The first molded component 3 and the required number of second molded components 4 integrally formed on the other side of the connecting body 2 are provided. Then, the molded part 1 after demolding is subjected to a drying process with warm air in the drying chamber, and the first molded part 3 and the second molded part 4 as products from the molded part 1 after drying by an appropriate means. And are separated. Further, the remaining connecting body 2 is discarded. An example of such a molded member is shown in FIG. 5 of Patent Document 1 or FIG. 6 of Patent Document 2, and Patent Document 2 also describes a cutting / separating device therefor.

JP-A-11-192640 JP 2006-320956 A

  The work of cutting and separating the first molded part 3 and the second molded part 4 from the molded part 1 in the form shown in FIG. 9 is often performed manually using a hot wire such as a nichrome wire. Usually, cutting and separating work with a hot wire is performed for each molded part, which requires a lot of labor and time. If the work of cutting and separating molded parts by heat rays can be performed simultaneously on a plurality of molded products, the work efficiency will be greatly improved. However, a plurality of molded parts having the form as shown in FIG. It is very difficult to align and maintain the aligned posture during the cutting and separating operation even if it can be aligned.

  As described in Patent Document 2, the use of a special device for cutting and separation can eliminate the complexity of manual work, but it requires a lot of investment.

  Furthermore, as described above, the molded parts that have been removed from the mold are often subjected to a drying treatment with hot air. However, in order to improve the drying efficiency, a large number of molded parts having the form shown in FIG. If it is put into the drying chamber, the molded parts in the adjacent molded parts tend to be in close contact with each other, so that the hot air does not spread uniformly over a large number of molded parts, and there is a possibility that a uniform drying process cannot be performed.

  The present invention has been made in view of the circumstances as described above, and a plurality of molded members each including one connecting body and two or more molded parts integrally formed on the connecting body via a connecting portion. From the above, it is a first object to provide a molded member that can simultaneously cut and separate molded parts by using a hot wire or the like. Another object of the present invention is to provide a molded member that can greatly improve the drying efficiency when the drying process is performed in the drying chamber.

The molded member according to the present invention is a foamed resin molded member that can be superposed in parallel. The molded member is an in- mold foam molded part by bead foam molding, and two or more molded parts and the molded member The parts are integrally formed through a connecting portion, and are formed of a rod-shaped joint body having a lateral width equal in the longitudinal direction , and the two or more molded parts are arranged to face both sides of the joint body. the connecting body is a flat body portion, and its longitudinal ends a projection formed on the portion, and a storage unit protrusions other molded parts each other an overlapping fit is formed, the projections The storage part in which the part is accommodated is formed with a movement restricting part for restricting the free movement of the mutual forming members in at least one direction in a state where the forming members are overlapped with each other . 2 or more molded parts are heavy Ne in combined state, characterized in that the molded parts of adjacent molded member is projected from the connecting member so as not to point contact or contact.

  In the molded member according to the present invention, it is possible to stack two or more molded members in a stable state by stacking so that the protruding portions of the other molded members that overlap each other are accommodated in the storage portion formed in the joint body. In a combined state, the molded members can maintain a parallel state. Therefore, management of a large number of molded members becomes easy. Further, in a group of a large number of molded members stored in such a manner that they are stacked in parallel, it passes through the connecting portion between the connecting body and the molded part, for example, a nichrome wire. In addition, by running an appropriate cutting means such as a heat ray, it is possible to easily and simultaneously perform the cutting and separation of the molded parts from the joints with respect to a large number of molded members.

  Further, when a large number of molded member groups stored in the same direction and stacked in parallel in the same direction are dried in the drying chamber, the molded parts of adjacent molded members are in a point contact state or Since it does not contact, hot air wraps around the molded part and the drying efficiency is improved.

Oite the molding member according to the present invention, the storage protrusions fit portion, in a state where the molded member was Kasanea', is movement restricting portion mutual shaping member for restricting the free movement of the at least one direction is formed Yes. For this reason, once a large number of molded members are kept aligned in the same direction, even if some external force acts on the group of stacked molded members, the aligned posture can be maintained as it is. Further, it becomes easier to store the molded member group, and the efficiency of the subsequent cutting / separating operation and the drying process can be further improved. Although the specific shape of the movement restricting portion is arbitrary, as an example, the protruding portion protrudes to one side from the main body portion of the connecting body, and the storage portion fits the protruding portion of the protruding portion. The formed aspect etc. are mentioned.

The molding member according to the present invention, the two or more molded parts are disposed opposite to both sides of the joint body. The molded part formed on one side of the rod-shaped connecting body and the molded part formed on the other side may be of the same shape, or one and the other may have different shapes. Good. Of course, all the molded parts may have different shapes .

According to the present invention, in the foamed resin molded member composed of two or more molded parts and the connecting body formed by integrally molding the molded parts via the connecting portion, a plurality of the molded parts are overlapped in parallel. To obtain a molded member that can be stored and managed. As a result, in the molded member according to the present invention, it is possible to simultaneously and easily perform the operation of cutting and separating the molded part from the joint body on a large number of molded members. Further, even during the drying process after demolding, it is possible to uniformly and efficiently dry a large number of molded members.

The perspective view which shows an example of the shaping | molding member by this invention. The top view (FIG. 2 (a)) and side view (FIG.2 (b)) of the shaping | molding member shown in FIG. The side view which shows the state which piled up two sheets of the shaping | molding member shown in FIG. The perspective view equivalent to FIG. 1 which shows the modification of the shaping | molding member shown in FIG. The side view which shows the state which piled up two sheets of the shaping | molding member shown in FIG. The perspective view which shows the other example of the shaping | molding member by this invention. The top view (FIG. 7 (a)) of the shaping | molding member shown in FIG. 6 and sectional drawing (FIG.7 (b)) which follows the bb line | wire of FIG. 7 (a). The side view which shows the state which piled up two sheets of the shaping | molding member shown in FIG. The figure explaining the other example of a shaping | molding member.

  Hereinafter, the present invention will be described based on embodiments.

[First Embodiment]
1 to 3 show a first embodiment of a molded member according to the present invention. This molded member A1 is not limited, but is preferably an in-mold foam molded part by bead foam molding. Basically, the rod-shaped joint body 10 and the same shape integrally formed on one side of the joint body 10 are formed. 2 or more (four in the figure) first molded parts 20 and two or more (four in the figure) second molded parts of the same shape integrally formed on the other side of the connecting body 10 30. The first molded part 20 and the second molded part 30 may have the same shape, but in this example, both have different shapes.

  Although not shown, the molded member A1 having such a shape has a conventionally known bead foam including a runner portion into which foamed resin is injected and a molding cavity into which the foamed resin injected into the runner portion flows. The molding can be performed integrally using a molding machine. In this example, a molding machine for bead foam molding having four molding cavities on one side of the runner part and also having four molding cavities at symmetrical positions on the other side is used. The part formed by the part becomes the above-described rod-shaped connecting body 10, the part formed by the four molding cavities on one side becomes the first molded part 20, and the part molded by the other four molding cavities is The second molded part 30 is obtained. In the illustrated molded member A1, the four first molded parts 20 and the four second molded parts 30 have substantially the same weight, and are formed on both sides of the rod-like connecting body 10 as a reference and in a horizontal direction. Yes.

  The rod-shaped connecting body 10 has a flat plate-like main body portion 11 and leg portions 12 and 12 depending from the main body portion 11 at both ends in the longitudinal direction. The leg portions 12 and 12 correspond to the “projection portion” in the present invention. The surface 13 on the side where the leg portions 12 of the main body portion 11 hang down is a flat surface, and the surface 14 on the opposite side has a V-shaped cross section with a lower central portion over the entire length. Further, in the portion of the opposite surface 14 where the leg portions 12, 12 are formed, an engagement notch that engages with the lower end portions of the leg portions 12, 12 of the molding member A1 of the same shape positioned at the upper level. 15 is formed. This engagement notch 15 corresponds to the “storage portion” in the present invention.

  The lower end surfaces 16 of the leg portions 12 and 12 are flat surfaces, and when the molding member A1 is placed so that the lower end surfaces 16 of the leg portions 12 and 12 are in contact with an appropriate horizontal surface, the four first molded parts 20 are formed. The leg portions 12 and 12 are formed so that the four second molded parts 30 can maintain a substantially horizontal posture with respect to the ground contact surface. The upper end surface 17 of the engagement notch 15 is a flat surface parallel to the lower end surface 16.

  Therefore, as shown in FIG. 3, when the upper molding member A11 is stacked on the lower molding member A12 so that the connecting members 10 and 10 are overlapped with each other, the rod-like shape of the upper molding member A11 is stacked. The lower ends of the legs 12 and 12 formed at both ends of the connecting body 10 enter into the engagement notches 15 formed at both ends of the rod-shaped connecting body 10 in the lower molding member A12, and the legs 12 of the upper molding member A11. The flat lower end surface 16 of 12 is on the flat upper end surface 17 of the engagement notch 15 of the lower molding member A12, and is in a state of being aligned in parallel in the same direction and in a stable posture. It will be in a stacked state. In this posture, the upper and lower molding members A11 and A12 are in a state in which free movement in the uniaxial direction, that is, free movement in the major axis direction of the rod-shaped connecting body 10 is restricted.

  In the illustrated molding member A1, the one surface 14 of the rod-shaped connecting body 10 has a V-shaped cross section with a lower central portion over the entire length when the foaming particles are filled in the molding die. In order to make it easier for the foamed particles to enter the molding cavities from the bottom, the bottom surface side of the liner portion is inclined to the molding cavities, and the cross section is V-shaped with the central portion lowered. It is not an essential configuration in the molded member A1.

  Further, as shown in FIG. 2 (b), the height h of the leg portion 11, that is, the length h from the lower end surface 16 of the leg portion 12 to the upper end surface 17 of the engagement notch 15 is the first molded part. 20 and the second molded part 30 are slightly longer than the maximum thickness H. Therefore, as shown in FIG. 3, when the upper molding member A11 is stacked on the lower molding member A12 so that the connecting members 10 and 10 overlap each other, the upper molding member A11 is positioned adjacent to the upper and lower sides. Between the first molded parts 20 and between the second molded parts 30, only the difference between the height h of the leg 11 and the maximum thickness H of the first molded part 20 and the second molded part 30 is obtained. The gap s is formed.

  As described above, in the molded member A1 of this form, as shown in FIG. 3, by overlapping the portions of the connecting body 10, it is possible to stack in a stable state and to overlap each other. In this state, the molded members A1 can maintain a state where they are aligned in the same direction. Further, the upper and lower molding members A11 and A12 are in a state in which the free movement in the major axis direction of the rod-shaped connecting body 10 is restricted in the overlapping state. Further, a gap s is formed between the first molded parts 20 adjacent to each other in the vertical direction and between the second molded parts 30.

  Therefore, it becomes possible to store and manage the group of molded members A1 superposed as shown in FIG. Further, when the group of superimposed molded members A1 is set in the drying chamber, the hot air is easily circulated between the first molded parts 20 and between the second molded parts 30, and the drying process is also efficient. To do. Furthermore, in the case where the entire group of the formed molding members A1 is secured by appropriate means so as not to move freely, the connection between the connecting body 10 and the first molded component 20 in the group of the molding members A1. Part and the part of the connecting part between the connecting body 10 and the second molded part 30, and by running a hot wire like a nichrome wire (not shown), the molded parts 20, 30 from the connecting body 10. The cutting and separation can be easily and simultaneously performed on a large number of the formed molded members A1.

  The rod-shaped connecting body 10 is not composed of the main body portion 11 and the leg portion 12 as shown in the figure, but is a single rod body having the same vertical cross-sectional area as that of the leg portion 12. It may be. As shown in the figure, when the main body portion 11 and the leg portion 12 are formed, the space between the leg portions 12 and 12 at both ends of the main body portion 11 can be regarded as a portion where the thickness of the rod-like connecting body 10 is reduced. It is possible to save raw materials and reduce weight. The engagement notch 15 described above can be omitted. In that case, the upper and lower molding members A11, A12 can be stacked in a stable state, and the respective molding members can be maintained in the same direction in the stacked state. The free movement of the connecting body 10 in the major axis direction is not restricted.

[Second Embodiment]
4 and 5 show a second embodiment of the molded member according to the present invention. The molded member A2 has a recessed portion 16a formed in the lower end surface 16 of the leg portion 12, and is further fitted into the recessed portion 16a at a position corresponding to the recessed portion 16a of the upper end surface 17 of the engagement notch 15. It differs from the molding member A1 of the first embodiment described above in that a projection 17a that can be formed is formed. The other configuration is the same as that of the molded member A1, and the description is omitted by giving the same reference numerals as in FIGS.

  In the molding member A2 of the second form, as shown in FIG. 5, when the molding members A2 are joined to each other at the portion of the connecting body 10, the protrusion 17a formed on the lower molding member A22 is formed on the upper molding member A21. By being in a state of being fitted into the formed recessed portion 16 a, the free movement of the molding members A <b> 2 in the short direction (second direction) of the connecting body 10 is also restricted. For this reason, the group of molded members obtained by superimposing a large number of molded members A2 can maintain a more stable posture.

[Third Embodiment]
6 to 8 show a third embodiment of the molded member according to the present invention. This molded member A3 is fundamentally different from the molded members A1 and A2 of the first and second embodiments described above in that a plurality of molded parts 50 are integrally molded around the connecting body 40. In the illustrated example, the connecting body 40 is a substantially cylindrical body, and four molded parts 50 having the same shape are integrally formed at equal intervals in the circumferential direction over the entire circumference. The shape of the connecting body 40 is not limited to a cylindrical body, but may be a solid that is a polygon in plan view. Moreover, the molded part 50 integrally molded around the periphery thereof may include parts having different shapes, and the number thereof is arbitrary.

  The upper surface 41 and the lower surface 42 of the connecting body 40 are parallel surfaces and flat surfaces. Then, when the molding member A3 is placed on the flat surface in a posture in which the lower surface 42 of the connecting body 40 is grounded on a horizontal flat surface, the individual molding members A3 are individually maintained so as to maintain a posture parallel to the horizontal plane. The shape of the molded part 50 and the connection position with respect to the connecting body 40 are set. Further, the height h of the connecting body 40 is set larger than the maximum thickness H of the molded part 50.

  Further, although not essential, in the illustrated example, a concave portion 42a is formed on the lower surface 42 of the connecting body 40, and the concave portion 42a can be fitted at a location facing the concave portion 42a of the upper surface 41. A convex portion 41a is formed.

  As shown in FIG. 8, the molded member A3 can be stacked in a posture in which the connecting members 40 are overlapped with each other, and a large number of them can be stacked in a stable posture in the same direction. As long as they are not added, the overlapping molded members A3 can maintain the state of being aligned in the same direction. In addition, a gap s corresponding to the difference between the height h of the connecting body 40 and the maximum thickness H of the molded part 50 is formed between the molded parts 50 that are positioned adjacent to each other in the overlapping state. Is done.

  Further, in the illustrated example, the convex portion 41a formed on the upper surface 41 of the connecting body 40 of the lower molding member A32 is fitted in the recessed portion 42a formed on the lower surface 42 of the connecting body 40 of the upper molding member A31. Thus, the stacked postures of the group of the formed molding members A3 are further stabilized.

  In the case of the molded member A3 as well, the group of molded members A3 superposed as shown in FIG. 8 can be stored and managed while maintaining their stable posture. Further, when the group of the formed molded members A3 is set in the drying chamber, hot air is easily circulated between the molded parts 50, and the drying process is also made efficient. Further, by securing the entire group of the formed molding members A3 by appropriate means so as not to move freely, the portion of the connecting portion between the connecting body 40 and the molded part 50 in the group of the molding members A3. By passing a heat ray or an appropriate cutting means like a nichrome wire (not shown) so as to pass through, the cut and separation of the molded part 50 from the joint body 40 is performed on the entire group of the formed molded members A3. On the other hand, it can be performed easily and simultaneously.

  In any embodiment, the height h of the connecting bodies 10 and 40 and the maximum thickness H of the molded parts 20 (30) and 50 may be equal. However, in that case, there may occur a case where the facing molded parts 20 (30) and 50 are in contact with each other, and it is possible that hot air does not reach the part that is in contact during the drying process. However, if the molded product is large, it has stability when stacked. Further, the molded member may be a molded member made of non-foamed resin.

A1, A2, A3 ... Foamed resin molded member,
10, 40 ... ties,
15 ... Legs of the connecting material 10,
20, 30, 50 ... molded parts.

Claims (3)

A foamed resin molded member that can be stacked in parallel,
The molded member is an in-mold foam molded part formed by bead foam molding, and is formed of two or more molded parts and a rod-shaped lateral width in which the lateral width in the short direction is the same in the longitudinal direction. It consists of a connecting body ,
The two or more molded parts are arranged opposite to both sides in the longitudinal direction of the joint body,
The joint body is a flat body portion, and its longitudinal ends a projection formed on the portion, and a storage unit protrusions other molded parts each other an overlapping fit is formed,
The storage portion in which the protrusion is accommodated is formed with a movement restricting portion that restricts the free movement of the mutual forming members in at least one direction in a state where the forming members are overlapped with each other.
Protrusions are housed into the storage unit, in a state in which 2 or more shaped member are superimposed, characterized in that the molded parts of adjacent molded member is projected from the connecting member so as not to point contact or contact Molded member. The protrusion protrudes one than the body portion of the joint body, the molded member according to claim 1 wherein the storage portion is formed to fit the projection projecting in the projecting portion. The protrusion protrudes one than the body portion of the joint body, the molded member according to claim 1 wherein the storage portion is formed by cutting from the connecting body.

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