CN104890199B - A cup handle demoulding mechanism and its injection mold - Google Patents

Abstract

The invention provides a cup handle demoulding mechanism and an injection mould thereof, comprising a mould frame structure component, a forming component, an upper inner core-pulling mechanism component, a side core-pulling demoulding mechanism component, a lower inner core-pulling mechanism component and a one-step parting control component; the mold is subjected to parting and mold opening twice; the die layout is one die and one cavity; the pouring system adopts a cold runner injection molding mode; by adopting the mould provided by the technical scheme, the problems that in the moulding injection moulding process of the cup handle product, the design of a mould design mechanism is difficult to design, the actual processing and manufacturing difficulty is high, the filling is difficult to ensure in a moulding pouring mode, more product flashes affect the moulding quality and the like are solved, the zero-defect automatic moulding production of the product is realized by using a simple mechanism, and the moulding quality of the product is effectively ensured; the structure design is reasonable, the structure is compact, the work is stable, and the operation is safe and reliable.

Description

A cup handle demoulding mechanism and its injection mold

technical field

The invention relates to the field of injection mold mechanism design, in particular to a cup handle demoulding mechanism and an injection mold thereof.

Background technique

As shown in Figure 1, when the cup handle product is injection molded, the shape is relatively special. There are inner hole thread features on the upper part and undercut features on the bottom of the cup handle. The design of the mold design mechanism is difficult to design, the actual processing is difficult, and the molding and pouring method is difficult. In order to ensure full filling and many product flashes affecting the molding quality, it is necessary to design a special demoulding mechanism and mold structure to complete the automatic injection molding production of the product.

Contents of the invention

The technical problem to be solved by the present invention is to provide a cup handle demoulding mechanism and its injection mold, which are reasonable in design, compact in structure, stable in operation, safe and reliable, and easy to use; in order to solve the above-mentioned existing technical problems, the present invention adopts the following scheme : A cup handle demoulding mechanism and its injection mold, including positioning ring, panel, fixed mold fixed plate, guide post, slider plate, core fixed plate, movable mold backing plate, cushion block, thimble cover plate, thimble pusher Plate, lower mold seat plate, backing plate pull rod, inner drawing pressure block, backing plate separation spring, inner drawing T-slot, inner drawing slider spring, inner drawing slider, inner drawing needle, Haval slider bead, Haval slider Block guide bar, left Haval slider, left upper inner drawer slider, upper inner core puller press block, upper inner drawer press block T-slot, right upper inner drawer slider, right Haval slider, central top block, and central ejector rod.

Preferably, the mold frame structure assembly includes a positioning ring, a panel, a fixed mold fixed plate, a guide column, a slider plate, a core fixed plate, a moving mold backing plate, a spacer, a thimble cover plate, a thimble push plate, a lower Die plate.

Preferably, the mold forming assembly includes an inner drawing slider, a left Haval slider, an upper left inner drawing slider, an upper right inner drawing slider, a right Haval slider, and a central top block.

Preferably, the upper inner core-pulling mechanism assembly includes an upper left inner-drawing slider, an upper inner core-pulling pressing block, a T-shaped groove of an upper inner drawing pressing block, an upper right inner drawing slider; an upper left inner drawing slider, an upper right inner drawing slide The block is installed on the central top block and can slide and move horizontally; the upper inner core-pulling block pulls the left upper inner-drawing slider and the right upper inner-drawing slider to the center through the T-shaped groove of the upper inner pumping block when opening the mold to complete the process. The core pulling and demoulding of the threaded part on the upper part of the product.

Preferably, the side core-pulling demoulding mechanism components include Haval slider bead, Haval slider guide bar, left Haval slider, right Haval slider and other main components; the left Haval slider and the right Haval slider are The block bead is installed on the core fixing plate; the Haval slider guide strip is a T-shaped groove guide strip, which is installed in the cavity groove opened by the fixed mold fixing plate through screws, and the left Haval slider and the right Haval slider each have a For the Haval slider guide bar, when the mold is opened, the Haval slider guide bar will pull and compress the corresponding Haval slider.

As a preference, the lower inner-drawing mechanism assembly includes an inner-drawing pressing block, an inner-drawing T-shaped slot, an inner-drawing slider spring, an inner-drawing slider, and an inner-drawing needle; the inner drawing pressing block is fastened to the movable mold by screws On the backing plate; after the mold is opened once, the inner pumping block drives the inner pumping slider and the inner pumping needle to complete the inner pumping at the bottom of the product handle through the inner pumping T-slot under the auxiliary pull of the inner pumping slider spring. Core stripping action.

As a preference, the mold primary parting control assembly includes a backing plate pull rod and a backing plate separation spring; the backing plate separation spring pushes away the core fixing plate and the movable mold backing plate when the mold is opened, so that the movable mold backing plate drives the internal pumping pressure block to complete the core-pulling action of the inner-drawing slider and the inner-drawing needle, and the backing plate rod controls the separation distance between the core fixing plate and the moving mold backing plate.

As a preference, the mold is divided and opened twice; the mold layout is one mold and one cavity; the gating system is cold runner injection molding.

Beneficial effects: the present invention adopts a cup handle demoulding mechanism and its injection mold provided by the above-mentioned technical solution, which overcomes the difficulty in design of the mold design mechanism in the molding and injection molding process of cup handle products, and the difficulty in actual processing and production. The pouring method is difficult to ensure full filling, and the product has many flashes that affect the molding quality. A simple mechanism has realized the zero-defect automatic molding production of the above products, effectively ensuring the product molding quality; the structure design is reasonable, the structure is compact, The work is stable, safe and reliable.

Description of drawings

Fig. 1 is a schematic diagram of a cup handle demoulding mechanism of the present invention and an object product applied to an injection mold thereof;

Fig. 2 is a kind of cup handle demoulding mechanism of the present invention and its injection mold structural layout schematic diagram;

Fig. 3 is a schematic diagram of installation of a cup handle demoulding mechanism and its injection mold mechanism of the present invention;

Fig. 4 is a schematic diagram of a cup handle demoulding mechanism and its injection mold mechanism control movement according to the present invention.

detailed description

Fig. 1-4 shows relevant explanatory diagrams of the present invention; A kind of cup handle demoulding mechanism and its injection mold include positioning ring 1, panel 2, fixed mold fixing plate 3, guide post 4, slider plate 5, core Fixed plate 6, moving mold backing plate 7, cushion block 8, thimble cover plate 9, thimble push plate 10, lower mold seat plate 11, backing plate pull rod 12, inner pumping block 13, backing plate separation spring 14, inner pumping T Type slot 15, inner drawer slider spring 16, inner drawer slider 17, inner drawer needle 18, Haval slider bead 19, Haval slider guide bar 20, left Haval slider 21, left upper inner drawer slider 22, upper Inner core-pulling pressing block 23, upper inner drawing pressing block T-shaped groove 24, upper right inner drawing slider 25, right Harvard slider 26, central jacking block 27, and central ejector pin 28, as shown in Fig. 2 and Fig. 3 .

The mold frame structure assembly includes a positioning ring 1, a panel 2, a fixed mold fixed plate 3, a guide post 4, a slider plate 5, a core fixed plate 6, a moving mold backing plate 7, a cushion block 8, and a thimble cover plate 9 , Thimble pusher plate 10, lower mold seat plate 11.

The mold forming assembly includes an inner drawing slider 17, a left Haval slider 21, an upper left inner drawing slider 22, an upper right inner drawing slider 25, a right Haval slider 26, and a central top block 27.

The upper inner core-pulling mechanism assembly includes the upper left inner-drawing slider 22, the upper inner core-pulling pressing block 23, the upper inner drawing pressing block T-shaped groove 24, the upper right inner-drawing slider 25; the upper left inner-drawing slider 22, the upper right inner The sliding block 25 is installed on the central top block 27, and can slide and move horizontally; the upper inner core-pulling pressing block 23 pulls the upper left inner drawing slider 22 and the upper right inner drawing block through the T-shaped groove 24 of the upper inner drawing pressing block when the mold is opened. The slide block 25 shrinks toward the center so as to complete the core-pulling and demoulding of the upper threaded part of the product.

The side core-pulling and demoulding mechanism components include Haval slider bead 19, Haval slider guide bar 20, left Haval slider 21, right Haval slider 26 and other main components; left Haval slider 21 and right Haval slider 26 are The Haval slider bead 19 is installed on the core fixing plate 6; the Haval slider guide strip 20 is a T-shaped groove guide strip, which is installed in the cavity groove opened by the fixed mold fixing plate 3 through screws, and the left Haval slider 21. The right Haval slider 26 has a pair of Haval slider guide strips 20. When the mold is opened, the Haval slider guide strips 20 play the role of pulling and pressing the corresponding Haval slider.

The lower inner pumping mechanism assembly includes an inner pumping block 13, an inner pumping T-shaped groove 15, an inner pumping slider spring 16, an inner pumping slider 17, and an inner pumping needle 18; the inner pumping block 13 is fastened and installed by screws On the movable mold backing plate 7; after the mold is opened once, the inner drawing block 13 drives the inner drawing slider 17 and the inner drawing needle under the auxiliary pulling of the inner drawing T-shaped groove 15 and the inner drawing slider spring 16. 18 Complete the inner core-pulling and demoulding action at the bottom of the product handle.

The primary parting control assembly of the mold comprises a backing plate pull rod 12 and a backing plate separation spring 14; the backing plate separation spring 14 pushes away the core fixed plate 6 and the movable mold backing plate 7 when the mold is opened, so that the movable mold backing plate 7 drives The inner pumping pressing block 13 completes the core-pulling action of the inner pumping slider 17 and the inner pumping needle 18, and the backing plate pull bar 12 controls the separation distance of the core fixed plate 6 and the movable mold backing plate 7.

The mold is divided and opened twice; the mold layout is one mold and one cavity; the pouring system is a cold runner injection molding method.

In actual work, as shown in Figure 4, its motion working principle is as follows:

1) After the injection molding of the mold is completed, when the mold is opened, the injection molding motorized template pulls the movable mold part of the mold back, and under the action of the spring 16 of the inner pumping slider, the mold is now opened on the PL1 parting surface, so that the movable mold backing plate 7 drives the inner pumping pressure Block 13 first completes the core-pulling action of the inner pumping slider 17 and the inner pumping needle 18;

2) After the PL1 parting surface is opened for a certain distance, since the backing plate rod 12 controls the separation distance between the core fixing plate 6 and the movable mold backing plate 7, the moving mold backing plate 7 pulls the core fixing plate 6 through the backing plate tie rod 12 to continue Back, the mold is opened at the PL2 parting surface, so that the Haval slider bead 19 pulls the left Haval slider 21 and the right Haval slider 26 to retreat together, and the left Haval slider 21 and the right Haval slider 26 are on the guide bar of the Haval slider. 20 to complete the demoulding of both sides of the product; at the same time, the upper inner core-pulling briquetting block 23 pulls the upper left inner-drawing slider 22 and the upper right inner-drawing slider through the T-shaped groove 24 of the upper inner core-pulling block when the mold is opened. 25 shrinks to the center to complete the core-pulling and demoulding of the upper threaded part of the product;

3) After the movable part of the mold continues to open and retreats for a certain distance, the ejector pin of the injection molding machine completely ejects the product through the ejector pin push plate 10, the central ejector pin 28, and the central ejector block 27;

4) When resetting, the mold is now closed at PL2, the left Haval slider 21, the right Haval slider 26, the left upper inner-drawing slider 22, and the right upper inner-drawing slider 25 are reset first, and then closed at the PL1 parting surface. The sliding block 17 and the inner drawing needle 18 are reset; the mold is closed, waiting for the start of the next injection molding cycle.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention, and those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or replace them in similar ways, but It does not depart from the spirit of the invention or go beyond the scope defined by the appended claims.

Claims (1)

1. A cup handle demoulding mechanism injection mold, comprising positioning ring (1), panel (2), fixed mold fixed plate (3), guide post (4), slider plate (5), core fixed plate ( 6), movable mold backing plate (7), cushion block (8), thimble cover plate (9), thimble push plate (10), lower mold seat plate (11), backing plate tie rod (12), inner pumping block (13), Backing Plate Separation Spring (14), Inner T-Slot (15), Inner Slider Spring (16), Inner Slider (17), Inner Outlet Needle (18), Haval Slider Bead (19), Haval slider guide strip (20), left Haval slider (21), left upper inner drawing slider (22), upper inner core pulling pressing block (23), upper inner drawing pressing block T-shaped slot (24 ), the upper right inner drawing slider (25), the right Haval slider (26), the central top block (27), the central ejector rod (28); the mold formwork structure components include a positioning ring (1), a panel (2), Fixed mold fixed plate (3), guide post (4), slider plate (5), core fixed plate (6), movable mold backing plate (7), cushion block (8), thimble cover plate (9), Ejector push plate (10), lower mold seat plate (11); mold forming components include inner drawer slider (17), left Haval slider (21), left upper inner drawer slider (22), right upper inner drawer slider ( 25), the right Haval slider (26), the central top block (27); the upper inner core-pulling mechanism assembly includes the left upper inner-drawing slider (22), the upper inner core-pulling pressing block (23), the upper inner drawing pressing block T Type groove (24), upper right inner drawer slider (25); Left upper inner drawer slider (22), right upper inner drawer slider (25) are installed on the central top block (27), can slide and move in the horizontal direction; The core-pulling pressing block (23) pulls the upper left inner drawing slider (22) and the upper right inner drawing slider (25) to shrink toward the center through the T-shaped groove (24) of the upper inner drawing pressing block when opening the mold to complete the upper threaded part of the product core-pulling demoulding; the side core-pulling demoulding mechanism assembly includes Haval slider bead (19), Haval slider guide bar (20), left Haval slider (21), right Haval slider (26) assembly; left Haval The slider (21) and the right Haval slider (26) are installed on the core fixing plate (6) through the Haval slider bead (19); the Haval slider guide strip (20) is a T-shaped groove guide strip, The screws are installed in the mold cavity groove provided by the fixed mold fixing plate (3). The left Haval slider (21) and the right Haval slider (26) each have a pair of Haval slider guide strips (20). The slider guide bar (20) plays the role of pulling and pressing the corresponding Haval slider; the lower inner drawing mechanism assembly includes the inner drawing pressure block (13), the inner drawing T-shaped groove (15), the inner drawing Slider spring (16), inner-drawing slider (17), inner-drawing needle (18); inner-drawing pressure block (13) is fastened and installed on the movable mold backing plate (7) by screws; the mold is opened once parting Finally, the inner drawing block (13) drives the inner drawing slider (17) and the inner drawing needle (18) to complete the product The inner core pulling and demoulding action at the bottom of the handle; mold one The sub-parting control assembly includes a backing plate pull rod (12), a backing plate separation spring (14); the backing plate separation spring (14) pushes away the core fixed plate (6), the movable mold backing plate (7) when the mold is opened, Thereby the movable mold backing plate (7) drives the inner pumping pressure block (13) to complete the core-pulling action of the inner pumping slider (17) and the inner pumping needle (18), and the backing plate pull rod (12) controls the core fixing plate (6 ), the separation distance of the movable mold backing plate (7); the mold is divided and opened twice; the mold layout is one mold and one cavity; the gating system is a cold runner injection molding method.