CN217098672U - PET (polyethylene terephthalate) forming die for processing box body - Google Patents

Abstract

The utility model discloses a PET forming die for processing box body, including the mould body, mould body from the top down has set gradually apron, front mould, cooling plate, push pedal, back mould, and the centre of front mould lower extreme is equipped with the die cavity of indent, and the shaping hole with the die cavity intercommunication is seted up to the centre of cooling plate, and the centre of back mould upper end is equipped with the shaping portion of straight tongue, and the shaping portion extends to the die cavity after passing push pedal, shaping hole, and the filling hole of intercommunication die cavity is seted up to the centre of apron, front mould. The utility model has the advantages that: the box body can be formed in one step, a cooling plate is arranged for cooling and used for forming, and a single part is convenient to process, high in fault tolerance rate, stable and reliable.

Description

PET (polyethylene terephthalate) forming die for processing box body

Technical Field

The utility model relates to an injection mold especially relates to a PET forming die for processing box body.

Background

The injection mold is a tool for producing plastic products, and the injection molding is a processing method used for batch production of parts with complex shapes, and specifically, the injection mold injects heated and melted plastic into a mold cavity from an injection molding machine at high pressure, and a formed product is obtained after cooling and solidification.

PET materials are commonly called polyester resins and are the most important variety of thermoplastic polyesters. The physical property of the polymer is milk white or light yellow highly crystalline polymer, and the surface is smooth and glossy. Creep resistance, fatigue resistance, abrasion resistance, small abrasion and high hardness, and has the highest toughness in thermoplastic plastics. The PET material is used as a high cost performance material and is widely applied in various fields. When producing the box body as raw materials, will cool off it fast, need a PET forming die for processing the box body, can come out the box body one shot forming, singly establish a cooling plate and be used for the cooling and be used for the shaping, single part processing is convenient, and the fault-tolerant rate is high, reliable and stable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a PET forming die for processing box body is provided, can come out box body one shot forming, singly establish a cooling plate and be used for the cooling and be used for the shaping, and single part processing is convenient, and the fault-tolerant rate is high, reliable and stable.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a PET forming die for processing box body, includes the mould body, the mould body from the top down has set gradually apron, front mould, cooling plate, push pedal, back mould, the centre of front mould lower extreme is equipped with the die cavity of indent, the centre of cooling plate seted up with the shaping hole of die cavity intercommunication, the centre of back mould upper end is equipped with straight tongue shape shaping portion, shaping portion passes the push pedal extend to behind the shaping hole in the die cavity, the apron the intercommunication has been seted up to the centre of front mould the filling hole of die cavity.

Compared with the prior art, the utility model has the advantages of, can come out box body one shot forming, singly establish a cooling plate and be used for the cooling and be used for the shaping, single partial processing is convenient, and the fault-tolerant rate is high, reliable and stable.

It can be understood that, the front mould shifts up together with the cooling plate during the die sinking, it is two parts of detached in fact, single processing is convenient, the fault-tolerant rate is high, if the front mould, the cooling plate is as a whole, an inner groovy for shaping is difficult to process, inject the PET raw materials of moulding plastics toward the filling hole, the raw materials of moulding plastics enters into shaping portion and die cavity, the shaping hole, the space between the push pedal comes the shaping box body, during the die sinking, the front mould, the cooling plate rises to the end together, the push pedal is released the box body after that, the box body breaks away from the shaping portion.

The utility model discloses further preferred scheme: the front side and the rear side of the push plate are symmetrically provided with first forming blocks, the left side and the right side of the push plate are symmetrically provided with second forming blocks positioned between the first forming blocks, and one ends of the first forming blocks and one ends of the second forming blocks facing the forming parts form forming grooves surrounding the runway of the forming parts.

It can be understood that the first forming block and the second forming block are used for forming the outer wall of the bottom of the box, the outer wall is provided with a surrounding bulge, the forming block is required to be matched with the forming hole to form the bulge, but the bulge does not block the subsequent die sinking and is convenient to process and replace.

Furthermore, the molding part, the molding hole, the mold cavity, the molding groove and the upper notch of the push plate form an injection molding cavity for molding the box.

It can be understood that the injection molding cavity can form a box, the product quality cannot be influenced when the front mold and the cooling plate move upwards, the push plate drives the forming groove to ascend together in the subsequent demolding process, the formed box is pushed out, and the protrusion at the bottom of the box cannot influence the normal demolding.

Further, the lower end of the first molding block is provided with a lower fitting portion fitted into the push plate, and the upper end of the second molding block is provided with an upper fitting portion fitted into the cooling plate.

It can be understood that the upper mosaic block is used for better mosaic with the upper cooling plate, and the lower mosaic block is used for better mosaic with the lower push plate, and the positioning is accurate, stable and reliable.

Furthermore, a fixing block for pressing the first forming block is arranged at the upper end of the push plate.

It can be understood that two fixing blocks are pressed on each first forming block, and the fixing blocks are fixed on the push plate through screws, so that the first forming blocks are stable on the push plate and cannot move.

Furthermore, a T-shaped groove is formed in the upper end of the first forming block, and the T-shaped fixing block is embedded in the T-shaped groove.

It can be understood that the fixing block does not protrude, so that a groove for accommodating the fixing block does not need to be formed at the lower end of the cooling plate, the T-shaped structure is more stable and firm, and the fixing block is not easy to loosen and deviate.

Drawings

The present invention will be described in further detail below with reference to the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments, and therefore should not be taken as limiting the scope of the present invention. Furthermore, unless specifically stated otherwise, the drawings are merely schematic representations based on conceptual representations of elements or structures depicted and may contain exaggerated displays and are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of the present invention;

fig. 4 is a partial perspective view of the present invention.

Wherein the reference numerals are specified as follows: 1. the injection molding device comprises a front mold, 1.1 parts, a cavity, 2 parts, a cooling plate, 2.1 parts, molding holes, 3 parts, a push plate, 4 parts, a rear mold, 4.1 parts, a molding part, 5 parts, a first molding block, 6 parts, an injection hole, 7 parts, a cover plate, 8 parts, a second molding block, 9 parts and a fixing block.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

As shown in fig. 1 to 4: the utility model provides a PET forming die for processing box body, which comprises a die body, the mould body from the top down has set gradually apron 7, front mould 1, cooling plate 2, push pedal 3, back mould 4, the centre of front mould 1 lower extreme is equipped with the die cavity 1.1 of indent, the shaping hole 2.1 with die cavity 1.1 intercommunication is seted up to the centre of cooling plate 2, the centre of 4 upper ends of back mould is equipped with straight tongue shaping portion 4.1, shaping portion 4.1 passes push pedal 3, extend to in the die cavity 1.1 behind the shaping hole 2.1, apron 7, the filling hole 6 of intercommunication die cavity 1.1 is seted up to the centre of front mould 1.

The front mould shifts up together with the cooling plate during the die sinking, it is two parts that part in fact, single processing is convenient, the fault-tolerant rate is high, if the front mould, the cooling plate is as a whole, an inner groovy for shaping is difficult to process, pour into the PET raw materials of moulding plastics toward the filling hole, the raw materials of moulding plastics enter into shaping portion and die cavity, shaping hole, the space between the push pedal forms the box body, during the die sinking, the front mould, the cooling plate rises to the end together, the push pedal is released the box body after that, the box body breaks away from the shaping portion.

The utility model discloses further preferred scheme: the front side and the rear side of the push plate 3 are symmetrically provided with first forming blocks 5, the left side and the right side of the push plate 3 are symmetrically provided with second forming blocks 8 positioned between the two first forming blocks 5, and one ends of the first forming blocks 5 and the second forming blocks 8 facing the forming part 4.1 form a forming groove of a runway type surrounding the forming part 4.1.

First shaping piece, second shaping piece are the outer wall that is used for the shaping box bottom, have the arch of surrounding on this outer wall, need shaping piece and shaping hole cooperation to shape this arch, but this arch can not block subsequent die sinking, and processing is changed conveniently moreover.

The molding part 4.1, the molding hole 2.1, the cavity 1.1, the molding groove and the upper notch of the push plate 3 form an injection molding cavity for molding the box.

The injection molding cavity can form a box, when the front mold and the cooling plate move upwards, the product quality cannot be influenced, in the subsequent demolding process, the push plate drives the forming groove to ascend together, the formed box is pushed out, and the protrusion at the bottom of the box cannot influence the normal demolding.

The lower end of the first molding block 5 is provided with a lower fitting portion to be fitted to the push plate 3, and the upper end of the second molding block 8 is provided with an upper fitting portion to be fitted to the cooling plate 2.

The upper embedded block is used for being better embedded with the upper cooling plate, the lower embedded block is used for being better embedded with the lower push plate, and the positioning is accurate, stable and reliable.

The upper end of the push plate 3 is provided with a fixed block 9 for pressing the first forming block 5.

Two fixing blocks are pressed on each first forming block and fixed on the push plate through screws, so that the first forming blocks are stable on the push plate and cannot move.

The upper end of the first forming block 5 is provided with a T-shaped groove, and a T-shaped fixing block 9 is embedded in the T-shaped groove.

The fixing block can not protrude, so that a groove for accommodating the fixing block is not required to be formed in the lower end of the cooling plate, the T-shaped structure is more stable and firm, and the fixing block is not easy to loosen and deviate.

The utility model discloses a concrete work flow: inject into PET raw materials of moulding plastics toward the filling hole, the raw materials of moulding plastics enters into the chamber of moulding plastics, the cooling plate both is used for the shaping and is used for cooling, the PET raw materials of moulding plastics after the cooling has formed the box body, during the die sinking, the front mould, the cooling plate rises to the end together, the protruding upper segment of box bottom is in the shaping hole of cooling plate, the protruding lower part of box bottom is at first shaping piece, the shaping groove of second shaping piece, thereby can not influence normal die sinking, the push pedal of jack-up releases the box body after that, the box body breaks away from the shaping portion, thereby the drawing of patterns smoothly.

The above is to the utility model discloses going on the detailed introduction, having used specific individual example to right in this paper the utility model discloses a principle and implementation mode have been elucidated, and the explanation of above embodiment only is used for helping understanding the utility model discloses and core thought. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims (6)

1. The utility model provides a PET forming die for processing box body which characterized in that: the die comprises a die body, the die body has set gradually apron (7), front mould (1), cooling plate (2), push pedal (3), back mould (4) from the top down, the centre of front mould (1) lower extreme is equipped with die cavity (1.1) of indent, the centre of cooling plate (2) seted up with shaping hole (2.1) of die cavity (1.1) intercommunication, the centre of back mould (4) upper end is equipped with straight tongue shape shaping portion (4.1), shaping portion (4.1) passes push pedal (3) shaping hole (2.1) back extend to in die cavity (1.1), apron (7) the centre of front mould (1) has seted up the intercommunication the filling hole (6) of die cavity (1.1).

2. The PET forming die for processing the box body according to claim 1, wherein: the front side and the rear side of the push plate (3) are symmetrically provided with first forming blocks (5), the left side and the right side of the push plate (3) are symmetrically provided with second forming blocks (8) located between the two first forming blocks (5), and one ends of the first forming blocks (5) and the second forming blocks (8) facing the forming part (4.1) form a track-shaped forming groove surrounding the forming part (4.1).

3. The PET forming die for processing the box body according to claim 2, wherein: the forming part (4.1), the forming hole (2.1), the die cavity (1.1), the forming groove and the upper notch of the push plate (3) form an injection molding cavity for forming the box.

4. The PET forming die for processing the box body according to claim 2, wherein: the lower end of the first molding block (5) is provided with a lower embedded part embedded in the push plate (3), and the upper end of the second molding block (8) is provided with an upper embedded part embedded in the cooling plate (2).

5. The PET forming die for processing the box body according to claim 2, wherein: and the upper end of the push plate (3) is provided with a fixed block (9) for pressing the first forming block (5).

6. The PET forming die for processing the box body according to claim 5, wherein: the upper end of the first forming block (5) is provided with a T-shaped groove, and the T-shaped fixing block (9) is embedded in the T-shaped groove.

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