JPH0617913U - Grooved cushion molding machine - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] To provide a device that enables reliable, easy and efficient mass production of grooved shock absorbers that can be stably fitted to a corrugated board with one-touch operation. [Structure] The inner surface of the double-sided flange 3 is changed from the upper wide taper surface 3a to the upper thin taper surface 3b at the upper end portion, and the projecting tongue portions 5 for forming a constricted portion are provided on both sides of the upper end portion. The mold 1 and the convex male mold 13 on the side of the moving frame 16 corresponding to the female mold 1 are characterized in that the groove-shaped cushioning body 21 made of a foamable synthetic resin material having elasticity is molded. [Effect] It is possible to reliably and easily mass-produce the groove-shaped cushioning body made of the expandable synthetic resin material, and to provide excellent foamed bead moldings at a stable and low cost.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a molding device for a groove-shaped cushioning body made of a foamable synthetic resin material having elasticity so that it can be freely inserted into and removed from a hole of a corrugated board.

[0002]

[Prior art]

 Conventionally, a cushioning member made of a foaming synthetic resin material having elasticity in a corner portion of a corrugated board plate 260 as shown in FIG. 1 is used as a cushioning member for product stability protection used in packing and packaging of various products. The one to which the component 210 is attached is used.

[0003]

[Problems to be solved by the device]

 However, this is because the mounting work of the cushioning body cut component 210 is performed by an adhesive, so that it is relatively troublesome and time-consuming, and a sufficient cushioning function cannot be obtained.

Therefore, in recent years, there has been a strong demand for development of a shock absorber molding apparatus capable of stably fitting the shock absorber to the corrugated board by a simple one-touch operation and capable of reliably and easily mass-producing the shock absorber having a sufficient shock absorbing function. It's in the end.

[0005]

[Means for Solving the Problems]

 The present invention has been made to solve the above problems, and has the following configuration.

That is, in the groove type shock absorber molding apparatus of the present invention, the inner surfaces of the both side flanges are changed from the upper wide taper surface to the upper taper surface of the upper end portion, and the constricted portion forming protrusions are provided on both sides of the upper end portion. It consists of a groove-shaped female die on the fixed frame side and a convex male die on the moving frame side that corresponds to the female die. The groove-shaped cushioning body made of a foamable synthetic resin material having elasticity is formed by forming constricted portions on both sides of the upper part. The present invention will be described in detail below with reference to the accompanying drawings of embodiments.

[0007]

【Example】

 First, the inner surface of the both side flanges 3 becomes an upward wide taper surface 3a which gradually widens upward, and becomes an upper fine taper surface 3b which gradually becomes narrower upwardly of the upper end portion to form a constricted portion on both sides of the upper end portion. It is a groove-shaped fixed-side female mold having a tongue portion 5 formed therein. A stepped portion 6 formed by the horizontal surface 3c of the protruding tongue portion 5 is formed at the inner end of the collar portion 4 on both sides of the upper end of the female mold 1. Reference numeral 2 is a web at the bottom of the female mold 2, and a feeder 11 for supplying a raw material and an eject pin 12 for extruding a product are appropriately provided on the web 2. As shown in FIG. 4, the female die 1 having the above-described structure has the flange portions 4 on both sides fixed to the fixed frame 7 by the bolts 9 and 10 with the inner side plate 8 interposed therebetween.

Reference numeral 13 is a male mold on the moving side that forms a set corresponding to the female mold 1, and has a flange 14 on both sides of the upper end of the convex portion 15. As shown in FIG. 4, the male mold 13 has two side flanges 14 fixed to a moving frame 16 which is moved up and down by an operating cylinder 20 by bolts 18 and 19 with an inner plate 17 interposed therebetween. As shown in FIG. 2, the outer surface of the both side flanges 23 is made of a foamable synthetic resin material having elasticity in which the outer wide taper surface 23a is changed to the upper narrow taper surface 23b at the upper end portion and the constricted portions 25 are formed on both upper sides. The channel buffer 21 is molded. Reference numeral 22 is a web of the groove-shaped cushioning body 21, and 24 is a flange portion thereof.

Next, when the groove-shaped cushioning body 21 made of a foamable synthetic resin material having elasticity such as foamable polystyrene beads shown in FIG. 2 formed by the above-described molding apparatus is used as a cushioning member, First, as shown in FIG. 5, a corrugated board 26 is provided with a hole 27 of a desired size. Then, using the elasticity of the above-mentioned groove-shaped cushioning body 21, it is constricted into a chain line shape as shown in FIG. 3 and fitted into the hole 27 of the corrugated board 26, and both constricted portions 25 are pulled out by elastic restoring force. The opening 27 of the hole 27 is fitted so as to fit into it, and the fitting composition is used as shown in FIG.

[0010]

[Effect of device]

 The device of the present invention seems to be above-mentioned, and it is possible to mass-produce groove-shaped shock absorbers that can be fitted to a corrugated board with one-touch operation, easily and efficiently, and the finishing of the molding die makes it smooth and smooth. It has the excellent effect that stable production of expandable bead moldings at low cost is possible. In addition, the groove-shaped cushioning body according to the present invention can be stably fitted and attached to the corrugated board by one-touch operation, which has the effect of saving the conventional troublesome labor.

[Brief description of drawings]

FIG. 1 is an explanatory view of a conventional cushioning member.

FIG. 2 is a perspective view of a grooved cushion molded product according to the present invention.

FIG. 3 is an explanatory view showing a corrugated cardboard board fitted state of the groove-shaped cushioning body.

FIG. 4 is a vertical cross sectional view showing the molding apparatus of the present invention.

FIG. 5 is a perspective view of a corrugated board according to the present invention.

FIG. 6 is an explanatory view of a cushioning member of the present invention.

[Explanation of symbols]

 1 Female type 2 Web 3 Flange 3a Wide tapered surface 3b Fine tapered surface 3c Horizontal plane 4 Collar part 5 Projection tongue part 6 Stepped part 7 Fixing frame 8 Inner plate 9 10 Bolt 11 Feeder 12 Eject pin 13 Male type 14 Collar part 15 Convex part 16 Moving frame 17 Inner plate 18 19 Bolt 20 Operating cylinder 21 Groove type buffer 22 Web 23 Flange 23a Wide tapered surface 23b Fine tapered surface 24 Collar 25 Constricted part 26 Corrugated board 27 Vent hole 210 Buffer cut Parts 260 Corrugated board

Claims (1)

[Scope of utility model registration request] A groove-shaped female mold on the fixed frame side in which the inner surface of the both-side flange is changed from an upper wide tapered surface to an upper tapered surface of the upper end and constricted portion forming tongues are provided on both sides of the upper end, and the female mold is supported. It consists of a convex male mold on the side of the moving frame, and the outer surface of the flanges on both sides is an upper wide taper surface to a finer taper surface at the upper end, and elastic foaming synthetic materials with constricted parts on both upper sides. A groove-shaped cushioning apparatus for molding a groove-shaped cushioning body made of a resin material.