CN211221903U

CN211221903U - Take demoulding mechanism of back-off product

Info

Publication number: CN211221903U
Application number: CN201921397891.3U
Authority: CN
Inventors: 郑钟煌; 李宙宏; 朱捍卫; 虞勇贤
Original assignee: Ningbo Mile Mould Manufacturing Co ltd
Current assignee: Ningbo Mile Mould Manufacturing Co ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-08-11
Anticipated expiration: 2029-08-27

Abstract

The utility model discloses a demoulding mechanism with a back-off product, which comprises a movable mould and a fixed mould, wherein a phase-changing inclined ejection mechanism is arranged below the fixed mould, the phase-changing inclined ejection mechanism comprises a bottom plate positioned below the fixed mould, a top plate which is positioned above the bottom plate and can synchronously lift with the movable mould, and a first inclined ejection mechanism and a second inclined ejection mechanism which are arranged between the top plate and the fixed mould, a stop block is vertically arranged on the bottom plate, the first inclined ejection mechanism comprises a slide block which is butted with the stop block, an inclined guide pillar which is obliquely downwards arranged from the lower part of the fixed mould to the slide block, a chute which is downwards inclined to one side far away from the stop block is arranged on the slide block, the second inclined ejection mechanism comprises an inclined ejection seat which can move along the chute, an inclined ejection rod which is upwards arranged on the inclined ejection seat and is penetrated and matched with the fixed mould, and an inclined ejection head which is arranged at the end part of the inclined ejection head, a product, the structure is simple, the manufacturing cost of the die is effectively reduced, and the yield of products is effectively improved.

Description

Take demoulding mechanism of back-off product

Technical Field

The utility model relates to the technical field of mold, more specifically say, it relates to a take demoulding mechanism of back-off product.

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 processing of the appearance of an article is realized mainly through the change of the physical state of a formed material.

The die has a specific contour or an inner cavity shape, generally comprises a movable die and a fixed die which can be combined, and the movable die and the fixed die can form the specific inner cavity shape after being combined, so that a blank is injected into the inner cavity to form a product during the combination of the dies; and taking out the internal product when opening the die. 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.

At present, in the field of dies, when two reverse buckles exist on a product with reverse buckles, referring to the attached drawing 2, a general die cannot directly demold the product with the two reverse buckles, the general structure of a reverse buckle demolding mechanism is complex, demolding is not smooth, and the cost and the operation stability of the die are affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take demoulding mechanism of back-off product, it is smooth-going to take the product demolding of back-off, effectively improve the yield.

In order to achieve the purpose, the method is realized by the following technical means: a demoulding mechanism with a back-off product comprises a movable mould and a fixed mould, wherein a phase-changing lifter mechanism is arranged below the fixed mould, the phase-changing pitched roof mechanism comprises a bottom plate positioned below the fixed die, a top plate which is positioned above the bottom plate and is synchronously lifted with the movable die, and a first pitched roof mechanism and a second pitched roof mechanism which are arranged between the top plate and the fixed die, wherein a stop block is vertically arranged on the bottom plate, the first inclined ejection mechanism comprises a sliding block abutting against the stop block, an inclined guide post which is obliquely and downwards arranged from the lower part of the fixed die and is inserted and matched with the sliding block when the top plate ascends, the slider up end is provided with the chute to keeping away from dog one side downward sloping, the oblique top that upwards sets up and the cover half interlude complex oblique ejector pin and the oblique ejector pin tip setting on the oblique footstock that the second pushed up the mechanism including can follow the chute motion, the footstock to one side, cover half and the movable mould between be formed with the product chamber of moulding plastics to one side.

The method is further optimized as follows: the top plate is provided with a slide block guide mechanism, the slide block guide mechanism comprises a slide seat fixed on the top plate or pressing strips fixedly arranged on two sides of the slide block, and the slide block slides along the slide seat or the pressing strips.

The method is further optimized as follows: the roof is sunken to have a mounting groove, be provided with on the mounting groove one with the dog interlude complex through-hole, slide or layering are fixed in the bottom of mounting groove.

The method is further optimized as follows: an inclined seat guide mechanism is arranged above the sliding seat or the pressing strip and comprises a guide rail fixed on the top plate, a T-shaped groove is vertically formed in one side, opposite to the guide rail, of the guide rail, and sliding blocks which are embedded with the T-shaped groove and slide are arranged on two sides of the sliding block.

The method is further optimized as follows: and a supporting block is arranged between the fixed die and the bottom plate, the height of the supporting block is greater than the sum of the heights of the stop block and the top plate, and the top plate moves to completely leave the stop block from the insertion and matching with the stop block in the process of the insertion and matching of the slide block and the inclined top column.

The method is further optimized as follows: an inclined guide seat is fixed above the fixed die, and the inclined guide column is fixed in the inclined guide seat.

The method is further optimized as follows: a pin is arranged between the oblique ejector rod and the oblique ejector head, and the oblique ejector rod and the oblique ejector head are fixed through the pin.

Compared with the prior art, the utility model the advantage lie in: the variable-phase inclined ejection mechanism is additionally arranged, the variable-phase inclined ejection mechanism is mutually matched with a first inclined ejection mechanism and a second inclined ejection mechanism to realize a two-section ejection state with two inverted products, the first ejection state is that when a top plate is in inserting fit with a stop block, a sliding block is limited and cannot slide, the products move upwards, an inclined ejection head moves obliquely, the products and the inclined ejection head move horizontally relatively, and the products are separated from the transverse inverted buckles of the products; the second ejecting state is that after the stop block is separated from the top plate, the slide block transversely moves under the action of the inclined guide post, the inclined ejecting seat moves downwards relative to the top plate under the limitation of the guide rail along the T groove of the slide block, when a product and an inclined ejecting head are reflected, the ascending speed of the inclined ejecting head is smaller than the ascending speed of the product, so that the product and the inclined ejecting seat move obliquely and relatively to be separated from the inclined reverse buckle, the demoulding mechanism can realize demoulding of the product with the two reverse buckles rapidly and smoothly, the structure is simple, the manufacturing cost can be effectively reduced, and the yield of the product can be effectively improved.

Drawings

Fig. 1 is an isometric view of a stripper mechanism for a product with an undercut in accordance with this embodiment;

FIG. 2 is a schematic view of the product of the present embodiment after injection molding;

FIG. 3 is a schematic view illustrating a first ejection state in the present embodiment;

fig. 4 is a schematic view of the second ejection state in the present embodiment.

In the figure, 1, a fixed die; 2. a base plate; 3. a support plate; 4. a top plate; 401. mounting grooves; 5. An inclined guide post; 6. an oblique ejector rod; 7. a slider; 8. a slanted ejecting seat; 9. a guide rail; 10. a stopper; 11. Layering; 12. an inclined guide seat; 13. a slanting top; 14. and (5) producing the product.

Detailed Description

The present invention will be described in more detail with reference to the following embodiments, which are illustrative only and are not limiting to the scope of the present invention.

Examples

When the product 14 has two undercuts, namely, a transverse undercut and an oblique undercut as shown in fig. 1 to 4, it is difficult for a general demolding mechanism to easily separate the product 14, a demolding mechanism with a complicated design is required, and the product 14 is easily damaged due to the unsmooth demolding, which results in a decrease in yield.

The embodiment discloses a demoulding mechanism with a reversed product 14, which can quickly and smoothly strip the product 14 with two reversed parts, and the specific structure is shown in fig. 1-4, and comprises a movable mould (not shown in the figure), a fixed mould 1, and a phase-changing inclined jacking mechanism arranged below the fixed mould 1, the phase-changing inclined ejection mechanism comprises a bottom plate 2 positioned below a fixed die 1, a top plate 4 positioned above the bottom plate 2 and arranged to be lifted synchronously with a movable die, and a first inclined ejection mechanism and a second inclined ejection mechanism which are arranged between the top plate 4 and a fixed die 1, wherein a supporting block is arranged between the bottom plate 2 and the fixed die 1, a stop block 10 is vertically and upwards arranged at one end of the bottom plate 2 close to a supporting plate 3, the stop block 10 is fixed on the top plate 4 through cup head screws, a mounting groove 401 is recessed in the top plate 4, and a through hole for inserting the stopper 10 is formed in the mounting groove 401.

First oblique top mechanism includes slider 7 of contradicting with dog 10, from 1 board down direction slider 7 of cover half to the oblique guide pillar 5 that alternates the complex with slider 7 when the roof 4 rises, lower terminal surface at 1 board of cover half has an oblique guide holder 12 through cup head screw fixation, foretell oblique guide pillar 5 is fixed with oblique guide holder 12 through interference fit or welding, wherein, slider 7 holding is in mounting groove 401, be provided with slider guiding mechanism in mounting groove 401, this slider guiding mechanism is including being fixed in slide or layering 11 of mounting groove 401 bottom, slide or layering 11 pass through the cup head screw fixation in the bottom of mounting groove 401, slider 7 is along slide or layering 11 glide motion.

The upper end surface of the sliding block 7 is provided with a chute which inclines downwards to the side far away from the stop block 10, and the section of the chute is T-shaped or trapezoidal.

The second pushes up the mechanism to one side including can be along the oblique footstock 8 of chute motion, upwards set up on the footstock 8 to one side and the oblique top 13 that fixed mould 1 alternates the oblique ejector pin 6 of complex and the tip setting of oblique ejector pin 6, it is fixed through the pin between oblique top 13 and the oblique ejector pin 6, be provided with the footstock guiding mechanism above slide or layering 11, this footstock guiding mechanism to one side is including being fixed in guide rail 9 on roof 4, guide rail 9 is fixed on roof 4 with the cup screw, the vertical T groove that is provided with in one side that guide rail 9 is relative, the both sides of slider 7 are provided with the sliding block that slides with the gomphosis of T groove.

An injection molding cavity of a product 14 is formed among the inclined top head 13, the fixed die 1 plate and the movable die, the height of the supporting block is greater than the sum of the heights of the stop block 10 and the top plate 4, and the top plate 4 moves to completely leave the stop block 10 from penetrating and matching with the stop block 10 in the process of penetrating and matching the sliding block 7 and the inclined top column.

In the scheme, a movable die and a top plate 4 synchronously move upwards or downwards, when the movable die and a fixed die 1 are assembled, the top plate 4 is positioned on a bottom plate 2, when the movable die and the fixed die 1 are opened, the movable die and the top plate 4 synchronously ascend, the driving mode can adopt an air cylinder or an oil cylinder, the driving mode is the prior art, the movable die and the fixed die 1 are not unfolded, when the movable die and the top plate 4 are demolded, when the movable die and the top plate 4 synchronously move upwards, the top plate 4 is in a first ejection state of a product 14 before being separated from a stop block 10, as shown in figure 3, at the moment, a slide block 7 is always in a state blocked by the stop block 10 due to the vertical upward movement of the top plate 4 along the stop block 10, at the moment, an inclined top seat 8, an inclined top rod 6 and an inclined top head 13 synchronously move with the top plate 4, namely, the ascending speed of the inclined top head, the inclined top 13 is horizontally moved transversely relative to the products 14, so as to remove the transverse reverse buckle of the products 14; after the movable die and the top plate 4 continue to ascend until the top plate 4 is completely separated from the stop block 10, as shown in fig. 4, the second ejecting state of the product 14 is started, at this time, the slider 7 moves close to the support plate 3 along the inclined guide post 5 in cooperation with the inclined guide post 5, and at this time, the inclined ejecting seat 8 moves downward along the guide rail 9 in cooperation with the guide rail 9, so that the ascending speed of the product 14 is greater than the ascending speed of the inclined ejecting head 13 (the ascending speed of the ejecting head 13 is equal to the ascending speed of the product 14 — the descending speed of the inclined ejecting seat 8), the inclined ejecting head 13 moves downward in an inclined direction relative to the product 14 to disengage the inclined reverse buckle, the overall structure is simple, the manufacturing cost is low, the demolding of the product 14 with two reverse buckles can be realized quickly and smoothly, and the yield and the production efficiency of the.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The demoulding mechanism comprises a movable mould and a fixed mould and is characterized in that a phase-change lifter mechanism is arranged below the fixed mould, the phase-change lifter mechanism comprises a bottom plate, a top plate, a first lifter mechanism and a second lifter mechanism, the bottom plate is positioned below the fixed mould, the top plate is synchronously lifted and lowered with the movable mould, the first lifter mechanism and the second lifter mechanism are arranged between the top plate and the fixed mould, a stop block is vertically arranged on the bottom plate, the first lifter mechanism comprises a sliding block which is abutted against the stop block, an inclined guide pillar which is obliquely and downwards arranged from the lower part of the fixed mould and is in inserting fit with the sliding block when the sliding block ascends, the upper end surface of the sliding block is provided with an inclined groove which is downwards inclined to one side far away from the stop block, the second lifter mechanism comprises an inclined ejector seat which can move along the inclined groove, an inclined ejector rod which is upwards arranged on the inclined ejector seat and is in inserting fit with the fixed, A product injection molding cavity is formed between the fixed mold and the movable mold.

2. The demolding mechanism for the product with the reverse buckle as claimed in claim 1, wherein a slide block guiding mechanism is arranged on the top plate, the slide block guiding mechanism comprises a slide seat fixed on the top plate or pressing strips fixedly arranged on two sides of the slide block, and the slide block moves along the slide seat or the pressing strips in a sliding manner.

3. The demolding mechanism with the reversed product as claimed in claim 2, wherein a mounting groove is recessed in the top plate, a through hole for inserting and matching with the stop block is formed in the mounting groove, and the sliding seat or the pressing bar is fixed at the bottom of the mounting groove.

4. The demolding mechanism with the inverted product as claimed in claim 3, wherein a slanted seat guiding mechanism is arranged above the sliding seat or the pressing bar, the slanted seat guiding mechanism comprises a guide rail fixed on the top plate, a T-shaped groove is vertically arranged on one side opposite to the guide rail, and sliding blocks which are embedded with the T-shaped groove and slide are arranged on two sides of the sliding block.

5. The stripper mechanism with a reversed product according to any one of claims 1-4, wherein a supporting block is arranged between the fixed die and the bottom plate, the supporting block has a height greater than the sum of the heights of the stop block and the top plate, and the top plate moves from the insertion fit with the stop block to the complete separation from the stop block during the insertion fit of the slide block with the slanted ejecting pin.

6. The demolding mechanism with the reversed product as claimed in claim 5, wherein an inclined guide seat is fixed above the fixed mold, and the inclined guide column is fixed in the inclined guide seat.

7. The demolding mechanism for the product with the reverse buckle as claimed in claim 6, wherein a pin is arranged between the oblique ejector rod and the oblique ejector head, and the oblique ejector rod and the oblique ejector head are fixed through the pin.