CN217395617U - Totally enclosed back-off demolding structure - Google Patents

Abstract

The utility model relates to the technical field of mold, concretely relates to totally enclosed back-off demolding structure, totally enclosed back-off demolding structure includes the movable mould subassembly, be equipped with mold core, two at least oblique tops and two at least sliders in the movable mould subassembly, two at least oblique tops enclose into oblique top frame, oblique top frame with the mold core constitutes the position of gluing of integrated into one piece door frame, each the slider is located the link between the link of two adjacent oblique tops, and the link of two adjacent oblique tops passes through the slider is connected, and this demolding structure makes the drawing of patterns of closed frame plastic part fast conveniently, and has easy to operate's advantage.

Description

Totally enclosed back-off demolding structure

Technical Field

The utility model relates to the technical field of mold, concretely relates to totally enclosed back-off demolding structure.

Background

Because integral type shaping door frame is difficult to the drawing of patterns, traditional refrigerator door frame structure forms a door frame assembly by four frame part concatenations, and the door frame of this kind of concatenation has the weak point: 1. four frame parts demand moulds plastics the part many, and the mould expense is high, need dispose 4 personnel field operation packings simultaneously, causes manufacturing cost height. 2. After the four frames are combined, the injection molding piece is deformed and assembled differently, the end covers are spliced and assembled, and assembly gap deviation exists in matching, so that the product is not delicate, and the appearance of the product is influenced. 3. After the refrigerator door frame is assembled in a splicing mode, a large amount of sponge is needed for leaking stoppage in the foaming process of the door body, so that the foaming efficiency is low, the material overflowing phenomenon is common, and the difficulty of the post-treatment process is high.

Therefore, it is necessary to upgrade the door frame forming mold to manufacture the integrally formed door frame.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to avoid the weak point among the prior art and provide a totally enclosed back-off demolding structure, this demolding structure can conveniently make the integrated into one piece frame mould a drawing of patterns fast, and has the advantage of easy to operate.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a totally enclosed back-off demolding structure, includes the movable mould subassembly, be equipped with mold core, two at least oblique tops and two at least sliders in the movable mould subassembly, two at least oblique tops enclose into oblique top frame, oblique top frame with the mold core constitutes the gluey position of integrated into one piece door frame, each the slider is located the connection position between the link of two adjacent oblique tops, and the link of two adjacent oblique tops passes through the slider is connected.

In some embodiments, there are four slanted tops and four sliding blocks, the four slanted tops form a rectangular slanted top frame, and the four sliding blocks are respectively located at the corners of the rectangular slanted top frame.

In some embodiments, the side surface of the slider is provided with a slider inclined surface, and the connecting end of the pitched roof is provided with a pitched roof inclined surface connected to the slider inclined surface.

In some embodiments, the cross section of the sliding block comprises an isosceles trapezoid surface, and the connecting end of the oblique top is connected to two oblique sides of the isosceles trapezoid surface.

In some embodiments, the long bottom surface of the isosceles trapezoidal surface is far away from the molding direction of the plastic part.

In some embodiments, the sliding block is provided with an inclined hole, and the inclined hole is provided with an inclined guide post which drives the sliding block to be separated from the inclined top in the direction back to the plastic part and in the direction of the middle part of the inclined top frame.

In some embodiments, the periphery of the inclined top frame, which faces away from the glue position, supports an inclined top rod.

The utility model relates to a totally enclosed back-off demolding structure's beneficial effect:

(1) the utility model discloses a totally enclosed back-off demolding structure passes through the link of adjacent two oblique tops the slider is connected, and the slider back of loosing core has the clearance between the link of adjacent oblique top, is convenient for push up to one side and looses core, leaves out mould stroke space then for ejecting drawing of patterns, realizes that integration door frame is moulded a back-off demolding.

(2) The utility model discloses a totally enclosed back-off demolding structure can make integrated into one piece's door frame, avoids the problem of refrigerator door frame concatenation, has improved the quality of refrigerator door frame.

(3) The utility model discloses a totally enclosed back-off demolding structure need not to open in addition the system mould, saves manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of a totally enclosed type back-off demolding structure of the embodiment.

Fig. 2 is a sectional view taken along line B-B in fig. 1.

Fig. 3 is a schematic view of the core structure after core pulling of the slide block and the inclined top.

Reference numerals

A mold core 1; a slider 3; a pitched roof 4; a slanting top frame 5; glue position 6; a connection end 7; a slanted top ramp 8; a slider ramp 9; an inclined hole 10; an oblique ejector rod 11; a gap 12.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that, although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited by these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Examples

The disclosed totally enclosed back-off demolding structure of this embodiment, fig. 1 shows, including the movable mould subassembly, be equipped with mold core 1, two at least oblique tops 4 and two at least sliders 3 in the movable mould subassembly, two at least oblique tops 4 enclose into oblique top frame 5, oblique top frame 5 with mold core 1 constitutes the gluey position 6 of integrated into one piece door frame, each slider 3 is located the connection position between the link 7 of two adjacent oblique tops 4, and the link 7 of two adjacent oblique tops 4 passes through slider 3 couples together.

When the core pulling type inclined ejector is used, firstly, the sliding block 3 is pulled out (separated), so that a gap 12 (shown in figures 2 and 3) is reserved between every two adjacent inclined ejectors 4, then, the core pulling is carried out on the inclined ejectors 4, and finally, a plastic part is ejected out.

As shown in fig. 1, there are four slanted ejecting portions 4 and four sliding blocks 3, the four slanted ejecting portions 4 enclose a rectangular slanted ejecting frame 5, and the four sliding blocks 3 are respectively located at corners of the rectangular slanted ejecting frame 5. The inclined top 4 is divided into four inclined tops 4, so that core pulling of the inclined tops 4 is facilitated.

As shown in fig. 2, a slider inclined surface 9 is arranged on the side surface of the slider 3, an inclined top inclined surface 8 is arranged on the connecting end 7 of the inclined top 4, and the inclined top inclined surface 8 is connected to the slider inclined surface 9. The slide block inclined plane 9 is matched with the inclined plane 8 of the inclined top, so that the slide block 3 can be conveniently separated from the joint of the inclined top 4.

As shown in fig. 2, the cross section of the sliding block 3 includes an isosceles trapezoid surface, and the connecting end 7 of the lifter 4 is connected to two inclined sides of the isosceles trapezoid surface. The isosceles trapezoid surface is provided with two side inclined surfaces, so that the sliding block 3 can slide out conveniently.

As shown in fig. 2, the long bottom surface of the isosceles trapezoid surface is far away from the mold stripping direction of the plastic part, and the long bottom surface of the isosceles trapezoid surface is located at the bottom, so that the sliding block 3 slides out more stably.

As shown in fig. 1, the slide block 3 is provided with an inclined hole 10, and the inclined hole 10 is provided with an inclined guide pillar (not shown in the figure), and the inclined guide pillar drives the slide block 3 to separate from the inclined top 4 in a direction back to the plastic part and in a direction towards the middle of the inclined top frame 5. Under the drive of the inclined guide post, the slide block 3 can be separated towards the direction back to the plastic part and towards the middle part of the inclined top frame 5.

As shown in figure 3, the inclined top 4 and the sliding block 3 both loose cores, and the plastic part can be easily ejected.

As shown in fig. 2, the periphery of the inclined top frame 5, which faces away from the glue position 6, supports an inclined top rod 11. The lifter 11 is used for ejecting the lifter 4.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a totally enclosed back-off demolding structure which characterized by: the movable mould comprises a movable mould component, wherein a mould core, at least two inclined tops and at least two sliding blocks are arranged in the movable mould component, the at least two inclined tops are enclosed to form an inclined top frame, the inclined top frame and the mould core form a glue position of an integrally formed door frame, each sliding block is located at a connecting position between connecting ends of two adjacent inclined tops, and the connecting ends of the two adjacent inclined tops are connected through the sliding blocks.

2. The totally enclosed undercut ejector structure of claim 1, wherein: the four oblique tops are enclosed into a rectangular oblique top frame, and the four sliding blocks are respectively positioned at the corners of the rectangular oblique top frame.

3. The totally enclosed undercut ejector structure of claim 1, wherein: the side face of the sliding block is set to be a sliding block inclined face, the connecting end of the inclined top is set to be an inclined top inclined face, and the inclined top inclined face is connected to the sliding block inclined face.

4. The totally enclosed undercut demolding structure as claimed in claim 3, wherein: the cross section of the sliding block comprises an isosceles trapezoid surface, and the connecting end of the inclined top is connected to the two side inclined edges of the isosceles trapezoid surface.

5. The totally enclosed undercut ejector structure of claim 4, wherein: the long bottom surface of the isosceles trapezoid surface is far away from the demolding direction of the plastic part.

6. The totally enclosed undercut ejector structure of claim 1, wherein: the sliding block is provided with an inclined hole, the inclined hole is provided with an inclined guide post, and the inclined guide post drives the sliding block to be separated from the inclined top in the direction back to the plastic part and in the direction of the middle of the inclined top frame.

7. The totally enclosed undercut ejector structure of claim 1, wherein: and the periphery of the inclined top frame back to the glue position is supported with an inclined top rod.

Images