CN215203221U

CN215203221U - Mobile phone shell mold blank with correction function

Info

Publication number: CN215203221U
Application number: CN202121346290.7U
Authority: CN
Inventors: 段常娥
Original assignee: Songjia Precision Technology Dongguan Co ltd
Current assignee: Songjia Precision Technology Dongguan Co ltd
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2021-12-17
Anticipated expiration: 2031-06-17

Abstract

The utility model discloses a mobile phone shell mold blank with a correction function, which comprises a bottom mold, a mobile phone shell groove mold, a guide pillar, an upper mold, a mobile phone shell pressing mold, a positioning pillar, a bottom plate, a fastening screw, a screw rod, a sliding shell, a pressing plate, a fastening bolt and a fastening nut; compared with the prior art, the beneficial effects of the utility model are that: the two sides of the positioning column are provided with the bulges, so that the mould cannot deform due to thermal expansion and contraction or pressure inside the mould, and the positioning groove is matched for calibrating the mould reference, so that the shape correction is facilitated; when the mold deforms to cause installation gaps, fastening nuts on the lower side of the sliding shell are loosened, fastening bolts are screwed into bolt grooves of the upper mold, then the fastening nuts on the upper side of the sliding shell on the four-corner studs are slowly screwed, the upper mold is pressed downwards, the gaps are eliminated, and the mold assembly is kept accurate and high.

Description

Mobile phone shell mold blank with correction function

Technical Field

The utility model relates to the technical field of mold, specifically be a cell-phone shell mould embryo with correct function.

Background

And the moulds mj are used for obtaining various moulds and tools of required products by injection moulding, blow moulding, extrusion, die casting or forging forming, smelting, stamping and other methods in industrial production. In short, a mold is a tool used to make a shaped article, the tool being made up of various parts, different molds being made up of different parts. The processing of the appearance of an article is realized mainly through the change of the physical state of a formed material. The element has the name of "industrial mother".

The blank is formed into a tool with a specific shape and size under the action of external force. The method is widely applied to blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting and the forming processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like. The die has a specific contour or inner cavity shape, and the blank can be separately punched according to the contour shape by applying the contour shape with the cutting edge. The blank can obtain a corresponding three-dimensional shape by using the shape of the inner cavity. The die generally comprises a movable die and a fixed die or a male die and a female die which can be separated or combined. When the blank is closed, the blank is injected into the die cavity for forming. The die is a precise tool, has a complex shape, bears the expansion force of a blank, has higher requirements on structural strength, rigidity, surface hardness, surface roughness and processing precision, and the development level of die production is one of important marks of the mechanical manufacturing level.

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding method has the advantages of high production speed, high efficiency, automation of operation, various colors, various shapes from simple to complex, small sizes, accurate product size, easy replacement of products, capability of forming products with complex shapes, and suitability for the molding processing fields of mass production, products with complex shapes and the like.

The injection molding process is a complex process flow which relates to various factors such as mold design, mold manufacturing, raw material characteristics, raw material pretreatment method, molding process, injection molding machine operation and the like, and is closely related to processing environment conditions, product cooling time and post-treatment process. Therefore, the quality of the product is not only determined by the injection precision and the metering precision of the injection molding machine, but also determined by the quality of the mold design and the precision level of the mold processing, and is generally influenced and limited by the above-mentioned other factors. Under the constraint of such a plurality of complex factors, the defects of injection molded products are inevitable, and therefore, it is important to find the internal mechanism of defect generation, predict the positions and types of the possible defects of the products, guide the design and improvement of the mold, summarize the rule of defect generation, and establish more reasonable process operating conditions. We will explain the generation mechanism and solution of injection molding defects by influencing three main factors, namely plastic material characteristics, mold structure, injection molding process and injection molding equipment in the injection molding process.

The existing injection mold is deformed due to extrusion deformation or cold contraction caused by heat and cold after being used for a long time, the original size can not be maintained any more, the injection molding is influenced, and the product quality is not over-qualified.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a cell-phone shell mould embryo with correction function to solve the problem that proposes among the above-mentioned background art.

In order to realize the purpose, the mobile phone shell comprises a bottom die, a mobile phone shell groove die, a guide pillar, an upper die, a mobile phone shell pressing die, a positioning column, a bottom plate, a fastening screw, a screw rod, a sliding shell, a pressing plate, a fastening bolt and a fastening nut; the bottom die is a cuboid, screw holes are formed in the left side surface and the right side surface of the bottom die, and two positioning holes are formed in the upper surface of the bottom die; the mobile phone shell groove die | is arranged in the center of the upper surface of the bottom die and positioned between the two positioning holes; the guide posts are welded at four corners of the upper surface of the bottom die; guide holes are formed in four corners of the lower surface of the upper die, and bolt holes are formed in the upper surface of the upper die; the mobile phone shell pressing die is arranged in the center of the lower surface of the upper die; the positioning columns are welded on the lower surface of the upper die and positioned on the front side and the rear side of the pressing die of the mobile phone shell; the bottom plate is concave and is arranged on the lower side of the bottom die; the fastening screw penetrates through the side plate of the bottom plate and is screwed on the screw hole in the side surface of the bottom die; the screw rod is welded on the upper surface of the bottom plate; the sliding shell is arranged on the screw rod; the pressing plate is welded on the sliding shell; the fastening bolt penetrates through the pressure plate and is installed in a matched mode with the bolt hole of the upper die; and the fastening nut is matched with the screw rod to fix the sliding shell.

As a preferred technical scheme of the utility model, the tail end of the guide post is provided with a chamfer; the front side and the rear side of the positioning column are provided with bulges, and a guide groove corresponding to the bulges is arranged on the positioning hole on the bottom die. The two sides of the positioning column are provided with the bulges, so that the mould can not deform due to thermal expansion and contraction or pressure inside the mould, and the positioning groove is matched to calibrate the mould reference, thereby facilitating the correction

As a preferred technical proposal of the utility model, the space between the two side plates of the bottom plate is the same as the width of the bottom plate; two screws are horizontally welded on the upper surface of each bottom plate, and the welding positions of the screws are positioned in front of the two side plates.

As an optimal technical scheme of the utility model, the slip shell is the barbell type, can slide on the screw rod, and the clamp plate welding is in the thin section intermediate position of slip shell. When the mold deforms to cause a gap in installation, the fastening nut on the lower side of the sliding shell is unscrewed, the fastening bolt is screwed into the bolt groove of the upper mold, the fastening nut on the upper side of the sliding shell on the four-corner stud is slowly screwed, the upper mold is pressed downwards, the gap is eliminated, and the mold is accurately assembled

As a preferred technical scheme of the utility model, the bottom plate has two pieces, and the screw, the sliding shell and the pressing plate have four pieces; the bottom plate, the sliding shell and the pressing plate are all made of stainless steel.

Compared with the prior art, the beneficial effects of the utility model are that:

1, the reference column both sides are equipped with the arch, can not take place to deform because of inside hot-stretch-draw-cold of mould or pressurized, and the cooperation constant head tank marks the mould benchmark, is convenient for orthopedic.

2, when the mould appears deformation and leads to the installation clearance to appear, loosen the fastening nut of shell downside, then twist fastening bolt in the bolt groove of last mould, then slowly screw the fastening nut of shell upside on the four corners double-screw bolt, will go up the mould and push down, eliminate the clearance, make the mould assembly keep the accuracy.

Drawings

Fig. 1 is a perspective view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a schematic view of the orthopedic state of the present invention;

FIG. 4 is a schematic view of the sliding shell structure of the present invention

In the figure: 1-bottom die, 2-mobile phone shell groove die, 3-guide column, 4-upper die, 5-mobile phone shell pressing die, 6-positioning column, 7-bottom plate, 8-fastening screw, 9-screw, 10-sliding shell, 11-pressing plate, 12-fastening bolt and 13-fastening nut.

Detailed Description

Example 1

As shown in fig. 1 to 4, the mobile phone shell mold comprises a bottom mold 1, a mobile phone shell groove mold 2, a guide pillar 3, an upper mold 4, a mobile phone shell pressing mold 5, a positioning pillar 6, a bottom plate 7, a fastening screw 8, a screw 9, a sliding shell 10, a pressing plate 11, a fastening bolt 12 and a fastening nut 13; the bottom die 1 is a cuboid, screw holes are formed in the left side surface and the right side surface, and two positioning holes are formed in the upper surface; the mobile phone shell groove die |2 is arranged in the center of the upper surface of the bottom die 1 and is positioned between the two positioning holes; the guide posts 3 are welded at four corners of the upper surface of the bottom die 1; guide holes are formed in four corners of the lower surface of the upper die 4, and bolt holes are formed in the upper surface of the upper die; the mobile phone shell pressing die 5 is arranged in the center of the lower surface of the upper die 4; the positioning columns 6 are welded on the lower surface of the upper die 4 and are positioned on the front side and the rear side of the mobile phone shell pressing die 5; the bottom plate 7 is concave and is arranged on the lower side of the bottom die 1; the fastening screw 8 penetrates through the side plate of the bottom plate 7 and is screwed on a screw hole in the side surface of the bottom die 1; the screw rod 9 is welded on the upper surface of the bottom plate 7; the sliding shell 10 is arranged on the screw rod 9; the pressure plate 11 is welded on the sliding shell 10; the fastening bolt 12 passes through the pressing plate 11 and is installed in a matched mode with a bolt hole of the upper die 4; the fastening nut 13 is matched with the screw 9 to fix the sliding shell 10. The tail end of the guide post 3 is provided with a chamfer; the front side and the rear side of the positioning column 6 are provided with bulges, and a positioning hole on the bottom die 1 is provided with a guide groove corresponding to the bulges. The distance between the two side plates of the bottom plate 7 is the same as the width of the bottom die 1; two screws 9 are horizontally welded on the upper surface of each bottom plate 7, and the welding positions of the screws are positioned in front of the two side plates. The sliding shell 10 is of a barbell type and can slide on the screw rod 9, and the pressing plate 11 is welded in the middle of the thin section of the sliding shell 10. The number of the bottom plates 7 is two, and the number of the screw rods 9, the sliding shell 10 and the pressing plate 11 is four; the bottom plate 7, the sliding shell 10 and the pressing plate 11 are all made of stainless steel.

The utility model discloses the theory of operation as follows: when the die is deformed and has a gap, the bottom plate 7 is installed on the lower side of the lower die 1, the fastening screws 8 are screwed in screw holes in the left side surface and the right side surface of the bottom die 1 to fix the bottom plate 7, then the fastening nuts 13 are unscrewed, the sliding shell 10 is adjusted, the fastening bolts 12 are screwed in bolt holes in the upper surface of the upper die 4 to be fixed, and the pressing plate 11 is confirmed to press the upper die 4. And slowly screwing the fastening nut 13 on the upper side of the sliding shell 10, pressing the upper die 4 downwards through the pressing plate to eliminate the gap between the upper die and the lower die, and then locking the lower nut to fix the sliding shell to finish the shape correction of the die.

Components not described in detail herein are prior art.

In the description of the present invention, it is to be understood that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing and simplifying the description, but not for indicating or implying that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the invention, and further that the terms "first", "second", etc., are used only for descriptive purposes and are not to indicate or imply relative importance or imply the number of technical features being referred to, whereby the features defined as "first", "second", etc., may explicitly or implicitly include one or more such features, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be a communication between the two elements, and the specific meaning of the above terms in the present invention can be understood by those skilled in the art through the specific situation

Although the present invention has been described in detail with reference to the specific embodiments, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge range of those skilled in the art, and modifications or variations without creative efforts are still within the scope of the present invention.

Claims

1. The utility model provides a cell-phone shell mould embryo with correct function which characterized in that: the mobile phone shell mold comprises a bottom mold (1), a mobile phone shell groove mold (2), a guide pillar (3), an upper mold (4), a mobile phone shell pressing mold (5), a positioning column (6), a bottom plate (7), a fastening screw (8), a screw rod (9), a sliding shell (10), a pressing plate (11), a fastening bolt (12) and a fastening nut (13); the bottom die (1) is a cuboid, screw holes are formed in the left side surface and the right side surface, and two positioning holes are formed in the upper surface; the mobile phone shell groove die (2) is arranged in the center of the upper surface of the bottom die (1) and is positioned between the two positioning holes; the guide posts (3) are welded at four corners of the upper surface of the bottom die (1); guide holes are formed in four corners of the lower surface of the upper die (4), and bolt holes are formed in the upper surface of the upper die; the mobile phone shell pressing die (5) is arranged in the center of the lower surface of the upper die (4); the positioning columns (6) are welded on the lower surface of the upper die (4) and are positioned on the front side and the rear side of the mobile phone shell pressing die (5); the bottom plate (7) is concave and is arranged on the lower side of the bottom die (1); the fastening screw (8) penetrates through a side plate of the bottom plate (7) and is screwed on a screw hole in the side surface of the bottom die (1); the screw rod (9) is welded on the upper surface of the bottom plate (7); the sliding shell (10) is arranged on the screw rod (9); the pressure plate (11) is welded on the sliding shell (10); the fastening bolt (12) penetrates through the pressing plate (11) and is installed in a matched mode with a bolt hole of the upper die (4); and the fastening nut (13) is matched with the screw rod (9) to fix the sliding shell (10).

2. The molded case for cellular phone handset with corrective function of claim 1, wherein: the tail end of the guide post (3) is provided with a chamfer; the front side and the rear side of the positioning column (6) are provided with bulges, and a positioning hole on the bottom die (1) is provided with a guide groove corresponding to the bulges.

3. The blank for a handset shell mold with orthotic function as claimed in claim 2, wherein: the space between the two side plates of the bottom plate (7) is the same as the width of the bottom die (1); two screws (9) are horizontally welded on the upper surface of each bottom plate (7), and the welding positions of the screws are positioned in front of the two side plates.

4. A handset case blank with orthotic function according to claim 3, wherein: the sliding shell (10) is of a barbell type and can slide on the screw (9), and the pressing plate (11) is welded in the middle of the thin section of the sliding shell (10).

5. The molded case for cellular phone handset with corrective function as in claim 4, wherein: the number of the bottom plates (7) is two, and the number of the screw rods (9), the sliding shell (10) and the pressing plate (11) is four; the bottom plate (7), the sliding shell (10) and the pressing plate (11) are all made of stainless steel.