CN210679562U

CN210679562U - Secondary pushing demoulding mechanism for mould

Info

Publication number: CN210679562U
Application number: CN201921658179.4U
Authority: CN
Inventors: 郭荣灼; 卢荣江
Original assignee: Dongguan Yuxin Plastic Mould Co ltd
Current assignee: Dongguan Yuxin Plastic Mould Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-06-05
Anticipated expiration: 2029-09-30

Abstract

The utility model belongs to the technical field of the mould structure technique and specifically relates to indicate a mould is with secondary top pushes away demoulding mechanism, the built-in first fixed plate that is equipped with of lower die carrier, connect the second fixed plate of side on first fixed plate and drive first fixed plate and second fixed plate gliding ejector pin from top to bottom, ejector pin's lateral wall is provided with the outer edge of top push that extends outward, the elastic component of the tight ejector pin lateral wall in preceding tip top that slider and drive slider were installed to first fixed plate, and this slider is provided with the grafting logical groove that runs through upper and lower both sides face, and the lower die carrier is installed and is located the grafting guide arm directly over the grafting logical groove, the downside of tip and the last side sliding connection who pushes away the outer edge before. Ingenious linkage structural design reaches and pushes away a plurality of positions completion drawing of patterns of product simultaneously, and utilizes the secondary to push away and further strengthens drawing of patterns reliability and stability.

Description

Secondary pushing demoulding mechanism for mould

Technical Field

The utility model belongs to the technical field of the mould structure technique and specifically relates to indicate a mould is with secondary top pushes away demoulding mechanism.

Background

The die is various dies and tools for obtaining required products by injection molding, blow molding, 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 method realizes the processing of the shape of an article mainly by changing the physical state of a formed material, and enables a blank to be a tool of a workpiece 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 cavity shape, and the blank can be separated (blanked) 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 mold generally comprises a movable mold and a fixed mold (or a male mold and a female mold), 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.

In the mould manufacture process, product degree of depth joint often appears in the lower bolster, and these some circumstances have brought the degree of difficulty for the drawing of patterns, directly concentrate certain position and deviate from the product, damage the product very easily, if divide and establish a plurality of positions and provide the strength and push away and take off, then can obviously increase the complexity of mould, increase simultaneously and make use cost.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a mould is with secondary top pushes away demoulding mechanism, ingenious linkage structural design reaches a plurality of positions that push away the product simultaneously and accomplishes the drawing of patterns, and utilizes the secondary top to push away further reinforcing drawing of patterns reliability and stability.

In order to solve the technical problem, the utility model discloses a following technical scheme: the utility model provides a mould is with secondary top pushes away demoulding mechanism, includes die carrier down, the built-in first fixed plate that is equipped with of die carrier down, connect gliding ejector pin about the second fixed plate of side and drive first fixed plate and the second fixed plate on first fixed plate, ejector pin's lateral wall is provided with outside extension top and follows outward, the elastic component of the tight ejector pin lateral wall in preceding tip top of slider and drive slider is installed to first fixed plate, and this slider is provided with the grafting that runs through upper and lower both sides face and leads to the groove, and the lower die carrier is installed and is located the grafting guide arm directly over the grafting logical groove, the downside of tip and the last side sliding connection who pushes away the outer edge of top before the slider.

Preferably, the first fixing plate is fixedly provided with a push rod, the head end part of the push rod is connected with a material pushing plate, the material pushing plate is movably connected to the upper side surface of the lower die frame, and the second fixing plate is provided with a thimble which is connected to the upper side surface of the lower die frame in an extending manner.

Preferably, the upper side surface of the lower die carrier is provided with a raised die core boss, one side wall of the material pushing plate abuts against the side wall of the die core boss, and the ejector pin is connected to the upper side surface of the die core boss in an extending manner.

Preferably, the sliding block is provided with a limiting groove, the lower die carrier is fixedly provided with a limiting block, and the limiting block extends to abut against the limiting groove.

Preferably, the upper side surface of the first fixing plate is fixedly provided with a limiting column, and the limiting column extends through the second fixing plate.

Preferably, one side surface of the inserting through groove is provided with a first inclined surface, and one end of the lower end part of the inserting guide rod, corresponding to the first inclined surface, is provided with a second inclined surface.

The beneficial effects of the utility model reside in that: the utility model provides a two-shot pushes away demoulding mechanism for mould, in the actual production activity in-process, this mechanism design is generally applied to injection mold in, combine other mould structures to form a set of complete mould promptly, then obtain the product through moulding injection moulding in the die cavity, other mould structure parts that combine with this application mechanism can refer to conventional mould structural design, also can refer to the structural part that this application drawing demonstrates, technical personnel in the art can learn other mould structural parts that can combine with this application mechanism without paying creative work.

The mechanism is applied to an injection mold, an upper mold frame and a lower mold frame are combined and then subjected to injection molding to obtain a product, the product is reversely buckled on a mold core boss of the lower mold frame, the depth of the product clamped on the mold core boss is deeper, when the upper mold frame and the lower mold frame are separated for demolding, an ejector rod drives a first fixing rod and a second fixing plate to simultaneously slide upwards, a push rod and an ejector pin which are arranged on a first fixing plate and a second fixing plate can protrude out of the upper side surface of the upper mold frame and push down the product clamped on the mold core boss, the first fixing plate and the second fixing plate can move upwards together due to the design of a sliding block, when the sliding block moves upwards to a certain height, an inserting through groove of the sliding block can be connected with an inserting guide rod, so that the sliding block retracts, the front end part of the sliding block slides out of the upper side surface along the pushing outer edge of the ejector rod, the, at the moment, the pushing rod continues to push the second fixing plate upwards to the highest point, and the product has a secondary pushing and demoulding effect, so that demoulding reliability is high.

Drawings

Fig. 1 is a schematic view of the side structure section when the demolding is not started.

Fig. 2 is a schematic view of the side structure sectioning in the demolding of the present invention.

Fig. 3 is a schematic view of the side structure sectioning in the demolding of the present invention.

Fig. 4 is a schematic view of the side structure after demolding.

Detailed Description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described with reference to the following examples, which are not intended to limit the scope of the present invention.

As shown in fig. 1 to 4, a secondary pushing demoulding mechanism for a mould, including lower die carrier 1, the built-in first fixed plate 2 that is equipped with of die carrier 1 down, connect in the second fixed plate 3 of first fixed plate 2 upper flank and drive first fixed plate 2 and the first fixed plate 3 top-to-bottom gliding ejector pin 4 of second, the lateral wall of ejector pin 4 is provided with outside extension and pushes away outer edge 41, the elastic component 22 of the tight ejector pin 4 lateral wall in front end portion top that slider 21 and drive slider 21 were installed to first fixed plate 2, and this slider 21 is provided with the grafting through groove 23 that runs through upper and lower both sides face, and lower die carrier 1 is installed and is located the grafting guide arm 11 directly over the grafting through groove 23, the downside of slider 21 front end portion and the side sliding connection that pushes away along 41 outside the top.

The secondary pushing demoulding mechanism for the mould is generally applied to an injection mould in the actual production process, namely, a set of complete mould is formed by combining other mould structures, then a product is obtained by injection moulding in a mould cavity, other mould structure parts combined with the mechanism can refer to the conventional mould structure design and the structure part shown in the attached drawing, and the technical personnel in the field can learn other mould structure parts combined with the mechanism without creative labor.

The mechanism is applied to an injection mold, an upper mold frame and a lower mold frame 1 are closed and then subjected to injection molding to obtain a product, the product is reversely buckled on a mold core boss 14 of the lower mold frame 1, the depth of the product clamped on the mold core boss 14 is large, when the upper mold frame and the lower mold frame 1 are separated for demolding, an ejector rod 4 drives a first fixing rod and a second fixing plate 3 to simultaneously slide upwards, a push rod 24 and an ejector pin 31 which are arranged on the first fixing plate 2 and the second fixing plate 3 can protrude out of the upper side face of the upper mold frame and push down the product clamped on the mold core boss 14, due to the design of a slide block 21, the first fixing plate 2 and the second fixing plate 3 can be together, when the slide block 21 moves upwards to a certain height, an insertion through groove 23 of the slide block 21 can be connected with an insertion guide rod 11, so that the slide block 21 retracts backwards, and then the front end part of the slide block 21 slides out of the upper, the first fixing plate 2 stops moving upwards after losing the force of the pushing rod 4, at the moment, the pushing rod 4 continues to push the second fixing plate 3 upwards to the highest point, and the product has a secondary pushing and demoulding effect, so that the demoulding reliability is high.

In this embodiment, the first fixing plate 2 is fixedly provided with a push rod 24, a head end portion of the push rod 24 is connected with a material pushing plate 25, the material pushing plate 25 is movably connected to an upper side surface of the lower mold frame 1, and the second fixing plate 3 is provided with an ejector pin 31, and the ejector pin 31 extends and is connected to the upper side surface of the lower mold frame 1. In this application push rod 24 and thimble 31 can be a setting, and it lays and all is fixed in first fixed plate 2 or second fixed plate 3 to can not increase design and manufacturing difficulty, increased the position that a plurality of pushes away simultaneously and helped more reliable pushing away the product and fall.

In this embodiment, the upper side surface of the lower mold frame 1 is provided with a raised mold core boss 14, a sidewall of the material pushing plate 25 abuts against a sidewall of the mold core boss 14, and the thimble 31 extends to connect to the upper side surface of the mold core boss 14. Although the drawings only show the side face of the mechanism, the product reversely buckled on the mold core boss 14 is obviously a round piece, the round piece is pushed out along the edge from the bottom end of the round piece product through the material pushing plate 25, the ejector pin 31 is matched to be ejected out from the middle of the round product, the high-efficiency falling is achieved, and meanwhile, the structure of the product is well considered, and the effect of ensuring that the product cannot be damaged by demolding is achieved.

In this embodiment, the sliding block 21 is provided with a limiting groove 26, the lower mold frame 1 is fixedly provided with a limiting block 12, and the limiting block 12 extends to abut against the limiting groove 26. The limiting block 12 and the limiting groove 26 are arranged to control the forward pushing stroke and force of the sliding block 21, so that the sliding block 21 is prevented from moving forward too far or retreating to cause the insertion guide rod 11 and the insertion through groove 23 to deviate too far, and abrasion in the insertion process is prevented.

In this embodiment, the upper side of the first fixing plate 2 is fixedly installed with a position-limiting pillar 27, and the position-limiting pillar 27 extends through the second fixing plate 3. When the first fixing plate 2 is lifted to a certain height, the upper side surface of the limiting column 27 abuts against the upper side surface in the lower die carrier 1, so that a force is provided for inserting the inserting guide rod 11 into the inserting through groove 23, and simultaneously, the guiding function is also provided for guiding the second fixing plate 3 to move upwards independently, and the stable secondary ejection of the ejector pin 31 is ensured.

In this embodiment, one side surface of the inserting through groove 23 is a first inclined surface 28, and one end of the lower end of the inserting guide rod 11 corresponding to the first inclined surface 28 is a second inclined surface 13. The design of inclined plane lets the grafting guide arm 11 more easily insert in grafting logical groove 23, and the inclined plane can reach the power that moves backward when inserting and cause slider 21 to move backward, and the front end portion of slider 21 is kept away from in the top immediately and is pushed away outer edge 41, has given push-out rod 4 and has let out the position, makes it directly pass first fixed plate 2 and continues to shift up, and the practicality is strong.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The above-mentioned embodiments only express a plurality of embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The secondary pushing demoulding mechanism for the mould comprises a lower mould frame (1), and is characterized in that: the lower die carrier (1) is built-in to be equipped with first fixed plate (2), connect second fixed plate (3) and drive first fixed plate (2) and second fixed plate (3) gliding ejector pin (4) from top to bottom of side on first fixed plate (2), the lateral wall of ejector pin (4) is provided with outside extension top and follows (41) outward, elastic component (22) of the tight ejector pin (4) lateral wall in preceding tip top that slider (21) and drive slider (21) were installed in first fixed plate (2), and this slider (21) are provided with grafting through groove (23) of both sides face about running through, and lower die carrier (1) is installed and is located grafting guide arm (11) directly over grafting through groove (23), the downside and the top of slider (21) preceding tip are followed the side sliding connection of (41) outward.

2. The double-ejection demolding mechanism for a mold according to claim 1, wherein: the first fixing plate (2) is fixedly provided with a push rod (24), the head end part of the push rod (24) is connected with a material pushing plate (25), the material pushing plate (25) is movably connected to the upper side surface of the lower die carrier (1), the second fixing plate (3) is provided with a thimble (31), and the thimble (31) is connected to the upper side surface of the lower die carrier (1) in an extending mode.

3. The double-ejection demolding mechanism for a mold according to claim 2, wherein: the upper side surface of the lower die carrier (1) is provided with a raised die core boss (14), one side wall of the material pushing plate (25) is abutted to the side wall of the die core boss (14), and the ejector pin (31) is connected to the upper side surface of the die core boss (14) in an extending mode.

4. The double-ejection demolding mechanism for a mold according to claim 1, wherein: the sliding block (21) is provided with a limiting groove (26), the lower die carrier (1) is fixedly provided with a limiting block (12), and the limiting block (12) is abutted to the limiting groove (26) in an extending mode.

5. The double-ejection demolding mechanism for a mold according to claim 1, wherein: the upper side surface of the first fixing plate (2) is fixedly provided with a limiting column (27), and the limiting column (27) extends through the second fixing plate (3).

6. The double-ejection demolding mechanism for a mold according to claim 1, wherein: one side surface of the inserting through groove (23) is provided with a first inclined surface (28), and one end of the lower end part of the inserting guide rod (11) corresponding to the first inclined surface (28) is provided with a second inclined surface (13).