CN209095909U - An automatic water breaker mold - Google Patents

Abstract

The utility model relates to the technical field of mould manufacturing, in particular to an automatic water gap breaking mould, wherein a lower mould seat is provided with a material ejecting needle for ejecting a water gap, a material pushing plate for pushing down products, a first limiting component for delaying the pushing of the material pushing plate and a second limiting component for delaying the resetting of the material pushing plate, the lower die holder is provided with a first driving plate, a first floating groove and a second floating groove which are arranged on the first driving plate, the material pushing plate is fixedly provided with a first driving rod extending and connected to the first floating groove and a second driving rod extending and connected to the second floating groove, the material pushing plate is enabled to delay ejection and delay reset through the ingenious design of the first limiting assembly and the second limiting assembly, the ejection needle is enabled to eject and reset in one step, the effect that the ejection needle ejects the ejection material to pour the water gap is achieved, the overall structure is ingenious, compact and reliable in design, low in use and maintenance cost and strong in creativity.

Description

An automatic water breaker mold

technical field

The utility model relates to the technical field of mold manufacturing, in particular to an automatic water-breaker mold.

Background technique

Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In a nutshell, a mold is a tool used to make a shaped item, this tool is made up of various parts, and different molds are made up of different parts. It mainly realizes the processing of the shape of the article by changing the physical state of the material to be formed, and makes the blank become a tool for a part with a specific shape and size under the action of external force. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy parts pressing, pressure casting, and compression molding or injection molding of engineering plastics, rubber, ceramics and other products. The mold has a specific contour or cavity shape, and the application of the contour shape with the cutting edge can separate the blank according to the contour shape (blanking). Applying the cavity shape allows the blank to obtain a corresponding three-dimensional shape. The mold generally includes two parts, a movable mold and a fixed mold (or a punch and a concave mold), which can be divided and combined. When separated, the parts are taken out, and when closed, the blanks are injected into the mold cavity to form. The mold is a precision tool with complex shape, which bears the expansion force of the blank, and has high requirements on structural strength, rigidity, surface hardness, surface roughness and machining accuracy. The development level of mold production is one of the important symbols of the level of machinery manufacturing.

Among them, the injection molding mold uses an injection molding machine to inject the heated and molten plastic into the mold cavity of the fixed mold. The mold cavity of the general injection molding mold is directly connected to the gate, and it is difficult to separate the plastic remaining in the gate when the product is formed. It affects the production efficiency, while the traditional direct large nozzle feeding requires manual trimming, or trimming through a jig in the later stage, which increases the cost of injection molding, and also affects the appearance of injection molded parts or increases the defect rate of products due to uneven trimming.

SUMMARY OF THE INVENTION

The technical problem to be solved by the utility model is to provide an automatic water-breaker mold with compact and reliable structure, automatic top-off of the pouring nozzle when demoulding, easy maintenance and low use cost.

In order to solve the above-mentioned technical problems, the utility model adopts the following technical solutions: an automatic water-cutting mold, comprising an upper die base, a lower die base, an upper template installed on the upper die base, and a core piece installed on the lower die base, The lower die base is equipped with a ejector needle for topping off the water outlet, a ejector plate for pushing down the product, a first limit component for delaying the ejector plate to push out, and a second limit component for delaying the ejector plate to reset, The lower die base is equipped with a first driving plate, a first floating groove and a second floating groove opened on the first driving plate, and the ejector plate is fixedly equipped with a first driving plate extending and connected to the first floating groove A rod and a second drive rod extending connected to the second floating slot.

Preferably, the first limit assembly includes a first limit block and a first linkage rod that drives the movement of the first limit block, and the second limit assembly includes a second limit block and drives the second limit block The moving second linkage rod, the first driving rod is provided with a first notch groove, the second driving rod is provided with a second notch groove, and the second linkage rod is provided with a third notch groove.

Preferably, the first limit block is provided with a first abutting head, a first linkage hole passing through the first limit block, a first inclined push surface extending from the bottom surface of the first limit block and connected to the first linkage hole, A first accommodating groove and a first elastic member installed in the first accommodating groove are opened.

Preferably, the second limit block is provided with a second abutting head, a second linkage hole passing through the second limit block, and a second inclined push surface extending from the upper side of the second limit block and connected to the second linkage hole and a second accommodating groove and a second elastic piece installed in the second accommodating groove.

Preferably, the second notch groove is horizontally aligned with the third notch groove, and both the first linkage rod and the second linkage rod are fixedly connected to the first drive plate.

Preferably, the lower die base comprises a rear template connected to the ejector plate, a bearing seat connected to the rear template, and a driving slot opened in the bearing seat, the first driving plate is installed in the driving slot, the ejector The needle, the first driving rod and the second driving rod are all connected to the first driving plate through the rear template, the ejecting plate is connected to the core piece, the core piece is provided with an ejector through hole, and the ejector pin is extended and connected to the ejector. material through holes.

Preferably, the rear template is provided with a first installation groove for installing the first limiting component and a second installation groove for installing the second limiting component, and the driving groove is provided with a guide column.

Preferably, the first driving board is connected with a second driving board, and the second driving board is provided with a third floating groove aligned with the first floating groove and a fourth floating groove aligned with the second floating groove, The first driving rod is provided with a first floating abutment, and the second driving rod is provided with a second floating abutment.

Preferably, the number of the first limiting components and the second limiting components is more than two, and the two or more first limiting components and the second limiting components are all distributed on the lower die base.

The beneficial effect of the utility model is that an automatic water-breaker mold is provided. In the actual use process, the upper mold seat and the lower mold seat are abutted and injected with hot melt adhesive, and the upper mold seat is lifted up after the hot melt adhesive is solidified and formed. Then the first drive plate of the lower die holder is forced to move upward. Due to the design of the first limit component, the first floating groove and the second floating groove, the ejector plate will move upwards with a delay. The ejector pin is fixedly installed on the first stopper. Drive plate, so the ejector needle will first move upward with the first drive plate to break the pouring nozzle. After moving upward for a certain distance, the first limit component will trip. At this time, the first drive plate continues to move upward to push the first drive rod and the second drive rod. The drive rod drives the ejector plate and the ejector pin to lift the injection-molded product together. At this time, the second limit component is buckled, and the product is connected to the ejector pin and has not yet fallen off. Then the first drive plate starts to pull down and reset. The design of the second limit component, the first floating groove and the second floating groove, the ejector plate will move downward with a delay, and the ejector needle will first move downward to be pulled out from the product, and continue to move downward for a certain distance. After the second limit component is tripped, the first drive plate drives the ejector plate and the ejector needle to move down together, and the product falls off. The clever design of the first limit component and the second limit component makes the ejector plate delay ejection and delay. Reset, let the ejector needle be ejected first and reset first, so as to achieve the effect of ejecting the ejector needle first out of the ejector pouring nozzle, the overall structure design is ingenious, compact and reliable, the use and maintenance cost is low, and the creativity is strong.

Description of drawings

FIG. 1 is a schematic diagram of the three-dimensional structure of the present invention.

FIG. 2 is a schematic diagram of an exploded three-dimensional structure of a lower die seat of the present invention.

FIG. 3 is a schematic sectional view of the side structure of the present invention.

FIG. 4 is a schematic three-dimensional structural diagram of the first limiting block in the present invention.

FIG. 5 is a schematic three-dimensional structural diagram of the second limiting block in the present invention.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described below with reference to the examples, and the contents mentioned in the embodiments are not intended to limit the present invention.

As shown in FIGS. 1 to 5 , an automatic water-cutting mold includes an upper die base 1 , a lower die base 2 , an upper die plate 11 installed on the upper die base 1 , and a core piece 21 installed on the lower die base 2 . , the lower die base 2 is equipped with a ejector pin 22 for topping off the water outlet, a ejector plate 23 for pushing down the product, a first limit component 3 pushed out by the delay ejector plate 23, and a delay ejector plate 23 to reset The second limit component 4 of the lower die base 2 is equipped with a first driving plate 5, a first floating groove 51 and a second floating groove 52 opened in the first driving plate 5, and the pushing plate 23 is fixed A first driving rod 24 extending and connecting to the first floating groove 51 and a second driving rod 25 extending and connecting to the second floating groove 52 are installed.

In the automatic water-breaker mold of this embodiment, in the actual use process, the upper mold base 1 and the lower mold base 2 are injected with hot melt adhesive, and after the hot melt adhesive is solidified and formed, the upper mold base 1 is lifted up, and then the lower mold base 2 The first drive plate 5 is forced to move upwards. Due to the design of the first limit assembly 3, the first floating groove 51 and the second floating groove 52, the ejector plate 23 will move upwards with a delay, and the ejector pin 22 is fixedly installed on the The first drive plate 5, so the ejector needle 22 will first move upward with the first drive plate 5 to break the pouring nozzle. After moving upward for a certain distance, the first limit assembly 3 will trip. At this time, the first drive plate 5 continues to move upward and push. The first driving rod 24 and the second driving rod 25 drive the ejector plate 23 and the ejector pin 22 to push up the injection-molded product together. At this time, the second limiting component 4 is buckled, and the product is connected to the ejector pin 22 and has not yet fallen off. , and then the first drive plate 5 starts to pull down and reset. Due to the design of the second limit assembly 4, the first floating groove 51 and the second floating groove 52 after the buckle, the ejector plate 23 will move downward with a delay, and the ejector pin 22 will first move downward to be pulled out from the product, and continue to move downward for a certain distance, after the second limit component 4 is released, the first drive plate 5 drives the ejector plate 23 and the ejector needle 22 to move down together and the product falls off. The ingenious design of the first limit component 3 and the second limit component 4 makes the ejector plate 23 delay ejection and delay reset, so that the ejector pin 22 is ejected and reset first, and the ejector pin 22 is ejected first. The effect of the top material pouring nozzle, the overall structure design is ingenious, compact and reliable, the use and maintenance costs are low, and the creativity is strong.

In this embodiment, the first limit assembly 3 includes a first limit block 31 and a first linkage rod 32 that drives the first limit block 31 to move, and the second limit assembly 4 includes a second limit block 41 and a second linkage rod 42 that drives the movement of the second limit block 41, the first driving rod 24 is provided with a first notch groove 26, the second driving rod 25 is provided with a second notch groove 27 and a second linkage rod 42 There is a third notch groove 43, the first linkage rod 32 drives the first limit block 31 to move forward and backward, and when moving forward, the first notch groove 26 opened on the first driving rod 24 is buckled, and the buckle is completed to achieve delayed pushing. The effect of the upward movement of the plate 23, the second linkage rod 42 drives the second limit block 41 to move back and forth, the second limit block 41 simultaneously buckles the second notch groove 27 and the third notch groove 43, and the buckle is completed to reach the delay pusher plate 23 The effect of moving downwards, the structure design is compact and reliable, the parts can be replaced directly if there are problems in the actual use process, the use and maintenance costs are low, and it also helps to enhance production efficiency.

In this embodiment, the first limiting block 31 is provided with a first abutting head 33 , a first linkage hole 34 penetrating the first limiting block 31 , and extending from the bottom surface of the first limiting block 31 to the first linkage hole The first oblique pushing surface 35 of 34, a first accommodating groove 36 and a first elastic member 37 installed in the first accommodating groove 36 are opened. Drive, the elastic piece is used to drive the reset action of the limit block, and the structure design is ingenious and simple.

In this embodiment, the second limiting block 41 is provided with a second abutting head 44 , a second linkage hole 45 penetrating the second limiting block 41 , and extending from the upper side of the second limiting block 41 to the second linkage The second oblique pushing surface 46 of the hole 45, the second accommodating groove 47 and the second elastic member 48 installed in the second accommodating groove 47 are opened. Into the drive, the elastic part is used to drive the reset action of the limit block, and the structural design is ingenious and simple.

In this embodiment, the second notch groove 27 is horizontally aligned with the third notch groove 43 , the first linkage rod 32 and the second linkage rod 42 are both fixedly connected to the first drive plate 5 , the second notch groove 27 and The horizontal alignment of the third notch groove 43 facilitates the driving of the second linkage rod 42 to extend into and pull down to reset.

In this embodiment, the lower die base 2 includes a rear die plate 6 connected to the ejector plate 23 , a bearing seat 61 connected to the rear die plate 6 , and a driving slot 62 opened in the bearing pedestal 61 . The first driving plate 5 Installed in the drive slot 62 , the ejector pin 22 , the first drive rod 24 and the second drive rod 25 all penetrate the rear die plate 6 and are connected to the first drive plate 5 , and the ejector plate 23 is connected to the core piece 21 , the core piece 21 is provided with an ejecting material through hole 28, the ejecting material needle 22 is extended and connected to the ejecting material through hole 28, a driving groove 62 is provided for the movement of the first driving plate 5, which is convenient for maintenance, and the ejecting material through hole 28 penetrates the mold The core piece 21 is provided, and the ejector needle 22 directly ejects the ejector water breaker.

In this embodiment, the rear template 6 is provided with a first installation groove 63 for installing the first limiting component 3 and a second installation groove 64 for installing the second limiting component 4 . The driving groove 62 A guide column 65 is installed, and the limit component is installed in the rear template 6, and the embedded design has strong stability and reliability, and will not cause deviation of the limit component due to vibration of the mold opening and closing.

In this embodiment, the first driving board 5 is connected with a second driving board 53 , and the second driving board 53 is provided with a third floating groove 54 aligned with the first floating groove 51 and communicating with the second floating groove 52 The fourth floating groove 55 is aligned and communicated, the first driving rod 24 is provided with a first floating abutting portion 29, the second driving rod 25 is provided with a second floating abutting portion 20, the first driving plate 5 and the second driving The plates 53 are aligned, the first floating abutting portion 29 moves up and down in the accommodating cavity formed by the matching of the first floating groove 51 and the third floating groove 54 , and the second floating abutting portion 20 is in contact with the second floating groove 52 . The accommodating cavity formed by the combination of the fourth floating groove 55 moves up and down. The accommodating cavity is designed so that there is a vacancy delay when the driving rod moves up and down. The cooperating with the limit component can reliably achieve the delay within a limited time. The board is convenient for subsequent adjustment of the floating space and daily maintenance work, and has strong flexibility.

In this embodiment, the number of the first limiting components 3 and the second limiting components 4 is more than two, and the two or more first limiting components 3 and the second limiting components 4 are evenly distributed at the bottom In the mold base 2 , the setting of multiple limit components further enhances the reliability of the delay time, and a second limit component 4 is arranged between two adjacent first limit components 3 .

In the description of the present utility model, it should be noted that for orientation words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", " Width, Thickness, Top, Bottom, Front, Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inside ", "outside", "clockwise", "counterclockwise" and other indications of orientation and positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 protection scope of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or indicating the number of technical features. Thus, the features defined as "first" and "second" may expressly or implicitly include one or more of the features. In the description of the present invention, "several" means two or more, unless There are other clear and specific restrictions.

In the present utility model, unless otherwise expressly specified and limited, the terms "assembled", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection, or It can be connected integrally; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, and two components can be connected internally. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

The above-mentioned embodiments only represent several embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the present invention. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (9)

1. An automatic water-cutting die, comprising an upper die base (1), a lower die base (2), an upper die plate (11) installed on the upper die base (1), and a die set on the lower die base (2) The core piece (21) is characterized in that: the lower die base (2) is provided with a ejector pin (22) for topping off the water opening, a ejector plate (23) for pushing down the product, and a delay ejector plate (22). 23) The first limit component (3) that is pushed out and the second limit component (4) that is reset by the delayed ejector plate (23), the lower die base (2) is equipped with a first drive plate (5), The first floating groove (51) and the second floating groove (52) are opened on the first driving plate (5), and the pushing plate (23) is fixedly equipped with a first floating groove (51) extending and connected to the first floating groove (51). A driving rod (24) and a second driving rod (25) extending connected to the second floating groove (52). 2. The automatic water-breaker mold according to claim 1, wherein the first limit component (3) comprises a first limit block (31) and a first limit block (31) that drives the movement of the first limit block (31). A linkage rod (32), the second limit assembly (4) includes a second limit block (41) and a second linkage rod (42) driving the second limit block (41) to move, the first limit block (41) The driving rod (24) is provided with a first notched groove (26), the second driving rod (25) is provided with a second notched groove (27), and the second linkage rod (42) is provided with a third notched groove (43). 3 . The automatic water-breaker mold according to claim 2 , wherein the first limit block ( 31 ) is provided with a first abutment head ( 33 ), a first stop penetrating the first limit block ( 31 ). 4 . The linkage hole (34), the first oblique pushing surface (35) extending from the bottom surface of the first limit block (31) and connected to the first linkage hole (34), are provided with a first accommodating groove (36), and are installed in the A first elastic member (37) of the accommodating groove (36). 4 . The automatic water breaker mold according to claim 2 , wherein the second limit block ( 41 ) is provided with a second abutment head ( 44 ) and a second stopper ( 41 ) passing through the second limit block ( 41 ). A linkage hole (45), a second oblique push surface (46) extending from the upper side of the second limit block (41) and connected to the second linkage hole (45), a second accommodating groove (47) is opened, and a second accommodating groove (47) is provided. The second elastic member (48) of the second accommodating groove (47). 5 . The automatic water-breaker mold according to claim 2 , wherein the second notch groove ( 27 ) is horizontally aligned with the third notch groove ( 43 ), and the first linkage rod ( 32 ) and the second The linkage rods (42) are all fixedly connected to the first drive plate (5). 6. The automatic water-breaker mold according to claim 1, characterized in that: the lower mold base (2) comprises a rear template (6) connected to the ejector plate (23), a rear template (6) connected to the rear template (6) A bearing seat (61) and a driving slot (62) opened in the bearing seat (61), the first driving plate (5) is installed in the driving slot (62), the ejector pin (22), the first driving The rod (24) and the second driving rod (25) are connected to the first driving plate (5) through the rear template (6), the ejecting plate (23) is connected to the core piece (21), and the core piece ( 21) An ejector through hole (28) is provided, and an ejector pin (22) is extended and connected to the ejector through hole (28). 7 . The automatic water-breaker mold according to claim 6 , wherein the rear template ( 6 ) is provided with a first mounting groove ( 63 ) for mounting the first limiting component ( 3 ) and a first mounting groove ( 63 ) for mounting the first limiting component ( 3 ). A second installation groove (64) of the second limiting component (4) is provided, and a guide column (65) is installed in the driving groove (62). 8 . The automatic water-breaker mold according to claim 1 , wherein the first driving plate ( 5 ) is connected with a second driving plate ( 53 ), and the second driving plate ( 53 ) is provided with a second driving plate ( 53 ). A third floating groove (54) in communication with a floating groove (51) and a fourth floating groove (55) in communication with the second floating groove (52), the first driving rod (24) is provided with a first floating groove (55). The abutting part (29), the second driving rod (25) is provided with a second floating abutting part (20). 9 . The automatic water-breaker mold according to claim 1 , wherein the number of the first limit component ( 3 ) and the second limit component ( 4 ) is more than two, and the number of the two or more The first limit component (3) and the second limit component (4) are evenly distributed on the lower die base (2).