CN211251210U - Injection molding demoulding structure of lock buckle box reversing structure - Google Patents

Abstract

The utility model provides a box back-off structure injection moulding demoulding structure is detained to tool to lock, includes and detains the internal shape matched with inner core of cavity of resorption of box with the tool to lock, be equipped with a plurality of spouts along vertical direction on the inner core, the cartridge has the interior ejector pin that inclines to the leanin respectively in every spout, and interior ejector pin top surface that inclines is equipped with and forms protrudingly in the recess matched with of cavity inner wall down, the inner core both sides are equipped with the extroversion ejector pin that leans out respectively, and the top of extroversion ejector pin is equipped with the horizontal pole that extends to the inner core direction, and the horizontal pole tip be equipped with the recess matched with extroversion of cavity outer wall down protruding, and the connecting plate that a level set up is all passed downwards in the bottom of each interior inclination ejector. The product ejecting device has the advantages that the grooves in the inner wall and the outer wall of the lower cavity can be formed, the product can be ejected upwards and released from a die, the product is automatically separated from the inverted buckle structure in the upward ejecting process, the die release is simple and efficient, damages such as scratches to the surface of the product are avoided, and the product quality is guaranteed.

Description

Injection molding demoulding structure of lock buckle box reversing structure

The technical field is as follows:

the utility model relates to a box back-off structure injection moulding demoulding structure is detained to tool to lock.

Background art:

the existing lock buckle box structure is shown in figures 1-2, and comprises an upper cavity and a lower cavity, the upper cavity is easy to mold and demold, and can be realized by utilizing a conventional mold structure, but due to the structural particularity of the lower cavity, the inner wall and the outer wall of the lower cavity are both provided with grooves, the molding is easy to realize, but the inside and the outside of the mold can form a back-off structure during demolding, the structure is very difficult to demold in the existing mold, generally, an operator is required to forcedly demold by means of other tools, because the operation space in the mold is very narrow, the demolding operation difficulty is high, scratches and other damages to the surface of a product are easily caused, the quality of the finished product is influenced, and therefore, the design transformation of the lock buckle box mold becomes a technical problem which needs to be solved urge.

The utility model has the following contents:

the utility model discloses a remedy prior art not enough, provide a box back-off structure injection moulding demoulding structure is detained to tool to lock, reasonable in design both can carry out the shaping to the recess of cavity inner wall and outer wall down, can upwards ejecting drawing of patterns with the product again, and the product upwards breaks away from the back-off structure automatically in the ejecting in-process, and the drawing of patterns is simple high-efficient, has avoided causing damages such as mar to the product surface, has guaranteed product quality, has solved the problem that exists among the prior art.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

the utility model provides a box back-off structure injection moulding demoulding structure is detained to tool to lock, includes and detains the internal shape matched with inner core of cavity of resorption of box with the tool to lock, be equipped with a plurality of spouts along vertical direction on the inner core, the cartridge has the interior ejector pin that inclines to the leanin respectively in every spout, and interior ejector pin top surface that inclines is equipped with and forms protrudingly in the recess matched with of cavity inner wall down, the inner core both sides are equipped with the extroversion ejector pin that leans out respectively, and the top of extroversion ejector pin is equipped with the horizontal pole that extends to the inner core direction, and the horizontal pole tip be equipped with the recess matched with extroversion of cavity outer wall down protruding, and the connecting plate that a level set up is all passed downwards in the bottom of each interior inclination ejector.

The lock catch box is characterized in that an ejector rod bottom plate and an ejector rod mounting plate are arranged on the ejector rod push plate, and a plurality of straight ejector rods are mounted on the ejector rod mounting plate and used for ejecting the formed lock catch box upwards.

And the inner core is provided with a positioning column for positioning with the lower die.

The above technical scheme is adopted in the utility model, following advantage has:

in view of the utility model discloses the lock detains the particularity of the lower cavity structure of box, has carried out the design improvement to the mould, through mutually supporting of interior slope ejector pin and camber ejector pin, both can make progress the shaping to the recess of cavity internal wall and outer wall down, can make progress ejecting drawing of patterns with the product again, and the product makes progress ejecting in-process and breaks away from the back-off structure automatically, and the drawing of patterns is simple high-efficient, has avoided causing damages such as mar to the product surface, has guaranteed product quality.

Description of the drawings:

fig. 1 is a schematic top perspective view of a lock buckle box.

Fig. 2 is a schematic bottom perspective view of the lock buckle box.

Fig. 3 is a schematic perspective view of the present invention.

Fig. 4 is a schematic front view of the sectional structure of the present invention.

Fig. 5 is a left side view schematic sectional structure of the present invention.

In the figure, 1, a lock buckle box, 2, an upper cavity, 3, a lower cavity, 4, a groove, 5, an inner core, 6, an inner inclined ejector rod, 7, an inner forming bulge, 8, an outer inclined ejector rod, 9, a cross rod, 10, an outer forming bulge, 11, a connecting plate, 12, an ejector rod push plate, 13, an ejector rod bottom plate, 14, an ejector rod mounting plate, 15, a straight ejector rod, 16 and a positioning column.

The specific implementation mode is as follows:

in order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

As shown in fig. 3-5, an injection molding demoulding structure of a lock buckle box inverted buckle structure comprises an inner core 5 matched with the inner shape of a lower cavity 3 of a lock buckle box 1, a plurality of sliding grooves are arranged on the inner core 5 along the vertical direction, an inward inclined mandril 6 is respectively inserted in each sliding groove, an inner forming bulge 7 matched with the groove 4 on the inner wall of the lower cavity 3 is arranged on the outer surface of the top of the inner inclined mandril 6, 5 both sides of inner core are equipped with the extroversion ejector pin 8 that leans out respectively, and the top of extroversion ejector pin 8 is equipped with the horizontal pole 9 that extends to the inner core direction, and 9 tip of horizontal pole are equipped with the protruding 10 of forming outward with the recess 4 matched with of cavity 3 outer wall down, and the connecting plate 11 that a level set up was all passed downwards in the bottom of each internal inclination ejector pin 6 and extroversion ejector pin 8 links to each other with ejector pin push pedal 12, and connecting plate 11 plays connection guide effect to each internal inclination ejector pin 6 and extroversion ejector pin 8.

The ejector rod push plate 12 is provided with an ejector rod bottom plate 13 and an ejector rod mounting plate 14, and the ejector rod mounting plate 14 is provided with a plurality of straight ejector rods 15 for upwards ejecting the formed lock buckle box.

And a positioning column 16 is arranged on the inner core 5 and used for positioning with a lower die.

During injection molding, the inner core 5 is used for molding the inner shape of the lower cavity 3 of the lock buckle box 1, the inner molding bulge 7 on the outer surface of the top of the inner inclined ejector rod 6 is used for molding the groove 4 on the inner wall of the lower cavity 3, the outer molding bulge 10 on the end part of the cross rod 9 of the outer inclined ejector rod 8 is used for molding the groove 4 on the outer wall of the lower cavity 3, the inner molding bulge 7, the outer molding bulge 10 and the groove 4 form a back-off structure, during demolding, the ejector rod push plate 12 simultaneously pushes the inner inclined ejector rod 6 and the outer inclined ejector rod 8 to move upwards, the inner inclined ejector rod 6 can continuously incline inwards in the upward moving process, so that the inner molding bulge 7 is separated from the groove 4 on the inner wall, the outer inclined ejector rod 8 can continuously incline outwards in the upward moving process, the outer molding bulge 10 is separated from the groove 4 on the outer wall, the back-off structure is separated, and finally the molded lock buckle box is upwards ejected through the straight ejector rod 15, and finishing the whole forming and demolding process.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims (3)

1. The utility model provides a box back-off structure injection moulding demoulding structure is detained to tool to lock which characterized in that: include and detain the internal shape matched with inner core of cavity of resorption of box with the tool to lock, be equipped with a plurality of spouts along vertical direction on the inner core, the cartridge has the interior slope ejector pin of leanin respectively in every spout, and interior slope ejector pin top surface is equipped with and forms the arch in the recess matched with of cavity inner wall down, the inner core both sides are equipped with the extroversion ejector pin that leans out respectively, and the top of extroversion ejector pin is equipped with the horizontal pole that extends to the inner core direction, and the horizontal pole tip be equipped with the recess matched with extroversion of cavity outer wall down protruding, and the bottom of each interior slope ejector pin and extroversion ejector pin all links to each other with the ejector pin push pedal through the connecting plate that a level set up.

2. The injection molding and demolding structure of the lock catch box inverted buckle structure as claimed in claim 1, wherein: the lock catch box is characterized in that an ejector rod bottom plate and an ejector rod mounting plate are arranged on the ejector rod push plate, and a plurality of straight ejector rods are mounted on the ejector rod mounting plate and used for ejecting the formed lock catch box upwards.

3. The injection molding and demolding structure of the lock catch box inverted buckle structure as claimed in claim 1, wherein: and the inner core is provided with a positioning column for positioning with the lower die.

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