JPH0630416Y2 - Grooved cushion molding machine - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for molding a channel-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]

2. Description of the Related Art Conventionally, a foaming synthetic resin material having elasticity at the corners of a corrugated board 260 as shown in FIG. 1 is used as a cushioning member for product stability protection used in packing and packaging of various products. Cushion cut parts 2
The one to which 10 is attached is used.

[0003]

However, since the work of mounting the cushioning body cut component 210 is performed by using an adhesive, it is relatively troublesome and troublesome, and a sufficient cushioning function cannot be obtained.

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

[0005]

The present invention has been made in order to solve the above-mentioned problems and has the following structure.

That is, the groove type shock absorber molding apparatus of the present invention is
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 has a convex male mold on the side of the moving frame, and the outer surface of the flanges on both sides is an elastic taper with the outer taper surface becoming the upper taper surface of the upper end to form constricted parts on both upper sides. It is characterized in that a channel-shaped cushioning body made of a material is formed. The present invention will be described in detail below with reference to the accompanying drawings of embodiments.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS First of all, firstly, the inner surface of the both side flanges 3 is gradually widened upward, from an upper wide tapered surface 3a to an upper narrow tapered surface 3b which is gradually narrowed toward the upper end. It is a groove-shaped fixed-side female mold in which a part forming protrusion 5 is formed. A stepped portion 6 formed by the horizontal surface 3c of the projecting tongue portion 5 is formed at the inner ends of the collar portions 4 on both sides of the upper end of the female die 1, respectively. 2 is a web at the bottom of the female mold 2,
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 plate 8 interposed therebetween.

Reference numeral 13 is a male mold on the moving side, which forms a set corresponding to the female mold 1, and has flanges 14 on both upper ends of the convex portion 15, respectively. The male mold 13 is shown in FIG.
As shown in FIG. 2, both side flanges 14 are fixed to a moving frame 16 which moves up and down by an operating cylinder 20 by means of 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 elastic foamable synthetic resin material in which the outer tapered surface 23a is changed to the upper tapered 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 the expandable synthetic resin material having elasticity such as the expandable polystyrene beads shown in FIG. 2 formed by the above-described molding apparatus is used as a cushioning member, first, FIG. As described above, a corrugated board 26 is appropriately formed with a hole 27 having a required size. Then, by utilizing the elasticity of the above-mentioned groove-shaped cushioning body 21, it is narrowed into a chain line shape as shown in FIG.
And the elastically restoring force causes the two constricted portions 25 to be removed through the respective holes 27.
It is used by fitting it so that it fits into the edge of the hole and fitting composition as shown in FIG.

[0010]

[Effect of the Invention] The device of the present invention is as described above, and it is possible to easily and efficiently mass-produce the groove-shaped cushioning body that can be fitted on the corrugated board by one-touch operation, and the smooth finish and smooth skin by the precision finishing of the molding die. It has an excellent effect that stable and low-cost mass production of excellent expandable bead moldings can be performed. In addition, the groove type shock absorber according to the present invention can be stably fitted and attached to the corrugated board by one-touch operation, which has an 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 2 Web 3 Flange 3a Upper Wide Tapered Surface 3b Upper Thin Tapered Surface 3c Horizontal Surface 4 Collar 5 Protruding Tongue 6 Stepped 7 Fixing Frame 8 Inner Plate 9 10 Bolt 11 Feeder 12 Eject Pin 13 Male 14 Collar 15 Convex part 16 Moving frame 17 Inner plate 18 19 Bolt 20 Operation cylinder 21 Groove buffer 22 Web 23 Flange 23a Wide tapered surface 23b Fine taper 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.