CN105479692A - Step-by-step oblique ejection structure - Google Patents

Abstract

The invention relates to a step-by-step inclined roof structure applied in a mold, which comprises an inclined roof, an inclined ejector rod, an inclined ejector seat, an elastic component and a guide block. The two ends of the slanting rod are respectively fixedly connected with the slanting roof and the slanting roof seat; the slanting roof seat is movably installed on the top plate, and the slanting roof seat can slide on the surface of the roof plate. The inclined ejector mechanism of the present invention divides the action of ejecting the product in the mold by the inclined ejector into two steps through the inclined plane staggered structure between the inclined ejector rod and the guide block. First, the inclined ejector ejects the product along the vertical direction, and secondly, the inclined ejector Lateral core pull. Since the product leaving the mold no longer has a firm grip on the slanting top mechanism, the product demoulded by the slanting top mechanism of the present invention has small deformation and good quality.

Description

A step-by-step inclined roof structure

technical field

The invention relates to an inclined roof mechanism, in particular to a step-by-step inclined roof mechanism applied in a mold.

Background technique

In the production of injection molding products, if there are shallow lateral barbs inside or outside the molded product, in order to remove the mold smoothly, it is often necessary to set a tilting mechanism in the mold. The inclined top mechanism has more obvious economic advantages than side core pulling when dealing with products with shallow side barbs. It has both forming and ejecting functions, and is a special form of parts in the mold.

Figure 1 is a schematic diagram of the working principle of a common inclined roof mechanism. The inclined roof mechanism includes an inclined roof 1, an inclined ejector rod 2, a guide block 5 and an inclined ejector seat 4, the two ends of the inclined ejector rod 2 are respectively hinged with the inclined ejector 1 and the inclined ejector seat 3, and a through hole is arranged in the guide block 5, The inclined ejector rod 2 passes through the through hole in the guide block 5; the inclined ejector 1 is located inside the mold 7, and the inclined ejector 1 and the mold are used for forming products together, and the inclined ejector seat 3 is movably installed on the top plate 6; when demoulding, the top plate 6 Moving upwards, the ejector rod 8 and the inclined top 1 gradually push out the product 9, during which the inclined top 1 gradually tilts to the left to let out the barb of the product 9 so as to take out the product 9.

During the process of ejecting the product 9 by the above-mentioned inclined lift mechanism in the prior art, the inclined lift 1 is gradually separated from the product 9 along an inclined route. In the initial stage of demoulding, the prongs 91 with barbs of the product 9 are still located in the mould, and the product 9 has a holding force on the inclined roof 1, and the prongs 91 will bend along with the movement of the inclined roof 1, so that The product 9 out of the mold is easily deformed.

Contents of the invention

The technical problem to be solved by the present invention is: in order to solve the problem that the existing inclined top mechanism easily deforms the demoulded product, the present invention provides a step-by-step inclined top mechanism to solve the above problem.

The technical solution adopted by the present invention to solve its technical problems is: a step-by-step slanted roof structure, including slanted roof, slanted jack rod, slanted roof seat, elastic parts and guide block; The inclined top seat is fixedly connected; the inclined top seat is movably installed on the top plate, and the inclined top seat can slide on the surface of the top plate; the inclined ejector rod is located inside the mold, and one side of the inclined ejector rod is provided with a first slope; The second inclined surface corresponding to the first inclined surface of the inclined ejector rod, the guide block is located on the movement path of the inclined ejector rod to change the movement path of the inclined ejector rod; the elastic part includes two guide rails, two springs and a slide Two guide rails are fixed and installed inside the mold in parallel. The inclined ejector rod is located between the two guide rails. The slider is installed between the two guide rails. There are many balls embedded in the slider. Between them, two springs are respectively installed inside the guide rail, and the two springs in the elastic part push the slider to exert force on the inclined ejector rod from the inclined ejector rod to the direction of the guide block.

The step-by-step inclined top structure ejects the product in the mold in two steps: the first step is to eject the product along the vertical direction, and the second step is to pull the core laterally.

The beneficial effects of the present invention are: (1) The step-by-step inclined roof structure of the present invention is to pull the core sideways after the product in the mold is completely ejected out of the mold, and the product leaving the mold no longer has a tight grip on the inclined roof mechanism. Force, so the product released from the mold is not easy to deform.

(2) The traditional lifter mechanism uses the guide block to limit the movement path of the lifter rod, which requires a high size fit between the lifter rod and the guide block. When the wear of the lifter rod breaks the size fit Afterwards, the inclined ejector rod is stressed in the guide block and becomes unstable and easily broken; the inclined ejector mechanism of the present invention utilizes the slope of the guide block to change the movement path of the inclined ejector rod, and the size fit between the inclined ejector rod and the guide block The requirements are very low, and the wear of the lift rod has little influence on the normal operation of the lift mechanism of the present invention, which improves the working life of the lift mechanism.

Description of drawings

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Fig. 1 is a schematic diagram of the working principle of the inclined roof mechanism in the prior art.

Fig. 2 is a schematic diagram of the working principle of the step-by-step inclined roof mechanism in Embodiment 1 (before the product is demolded).

Fig. 3 is a schematic diagram of the working principle of the step-by-step inclined roof mechanism in Embodiment 1 (before the product is demolded).

FIG. 4 is an enlarged view of A in FIG. 3 .

Fig. 5 is a view along the B-B direction of Fig. 3 .

In the figure 1-slope top, 2-slope top rod, 21-first slope, 3-slope top seat, 4-elastic part, 41-guide rail, 42-spring, 43-slider, 44-ball, 5-guide Block, 51-second slope, 6-top plate, 7-mold, 8-ejector, 9-product, 91-fork foot, 10-guide post.

detailed description

The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

(Example 1)

As shown in Figures 2 to 4, the inclined roof structure of this embodiment includes an inclined roof 1, an inclined ejector rod 2, an inclined ejector seat 3, an elastic member 4 and a guide block 5; It is fixedly connected with the inclined top seat 3; the inclined top seat 3 is movably installed on the top plate 6, and the inclined top seat 6 can slide on the surface of the top plate 6; the inclined ejector rod 2 is located inside the mold 7, and one side of the inclined ejector rod 2 is provided with a second A slope 21; the surface of the guide block 5 is provided with a second slope 51 corresponding to the first slope 21 of the ramp 2, and the guide block 5 is located on the movement path of the ramp 2 for changing the motion of the ramp 2 path.

The elastic part 4 includes two guide rails 41, two springs 42 and a slider 43, the two guide rails 41 are fixed and installed inside the mold 7 in parallel, the inclined ejector rod 2 is located between the two guide rails 41, and the slider 43 is installed on two Between the guide rails 41, a plurality of balls 44 are embedded on the slider 43, and the balls 44 are located between the slider 43 and the tilting rod 2; The push rod 2 exerts a force directed from the inclined push rod 2 to the direction of the guide block 5 .

When the mold is opened, the guide post 10 drives the top plate 6 to move upward, and the ejector rod 8 and the inclined top 1 move upward together to eject the product 9 . After the product 9 is completely separated from the mold 7, the first inclined surface 21 touches the second inclined surface of the guide block 5 while the inclined ejector rod 2 continues to move upward, and the inclined ejector rod 2 drives the inclined ejector 1 to move upward to the left to complete the lateral drawing. core action. Because the lateral core-pulling action is carried out after the product 9 completely leaves the mold 7, the product 9 no longer has a tight force on the inclined roof 1, so the product 9 after demoulding becomes smaller and of better quality.

Inspired by the above-mentioned ideal embodiment according to the present invention, through the above-mentioned description content, relevant workers can make various changes and modifications within the scope of not departing from the technical idea of the present invention. The technical scope of the present invention is not limited to the content in the specification, but must be determined according to the scope of the claims.

Claims (3)

1. a substep ramp-roof structure, is characterized in that: comprise oblique top (1), angle ejector rod (2), tilted footstock (3), elastomeric element (4) and guide pad (5); The two ends of angle ejector rod (2) are fixedly connected with tilted footstock (3) with oblique top (1) respectively; Tilted footstock (3) is movably arranged on top board (6), and tilted footstock (6) can at top board (6) surface sliding; Angle ejector rod (2) is positioned at the inside of mould (7), and a side of angle ejector rod (2) is provided with the first inclined-plane (21); The surface of guide pad (5) is provided with second inclined-plane (51) corresponding with first inclined-plane (21) of angle ejector rod (2), for changing the motion path of angle ejector rod (2) on the motion path that guide pad (5) is positioned at angle ejector rod (2); Elastomeric element (4) is positioned between angle ejector rod (2) and mould (7), and elastomeric element (4) applies to angle ejector rod (2) power being pointed to guide pad (5) direction by angle ejector rod (2).

2. a kind of substep ramp-roof structure according to claim 1, it is characterized in that: described elastomeric element (4) comprises two guide rails (41), two springs (42) and a slide block (43), two guide rails (41) are parallel, and to be fixedly mounted on mould (7) inner, angle ejector rod (2) is positioned between two guide rails (41), slide block (43) is arranged between two guide rails (41), two springs (42) are arranged on guide rail (41) inside respectively, elastomeric element (4) applies to angle ejector rod (2) power being pointed to guide pad (5) direction by angle ejector rod (2) by slide block (3).

3. a kind of substep ramp-roof structure according to claim 2, it is characterized in that: described slide block (43) is embedded with many balls (44), ball (44) is positioned between slide block (43) and angle ejector rod (2).