CN213919441U - Cavity back-off demoulding mechanism for injection mould of automobile kettle - Google Patents

Abstract

The utility model belongs to the technical field of the mould, especially, relate to a die cavity back-off demoulding mechanism for car kettle injection mold. The utility model discloses, including die block and lower mould, the lower mould in be equipped with a plurality of die cavities of lower mould central line symmetry, the die block in be equipped with lower mould arrangement groove, the lower mould match with the shape in lower mould arrangement groove and fit, lower mould bottom be equipped with a plurality of sliding plates of lower mould central line symmetry of edge, the position of sliding plate and die cavity corresponding. The utility model discloses a set up sliding plate, first oblique ejector pin, the oblique ejector pin of second and oblique ejector pad, can mould a drawing of patterns with the car kettle after the shaping, the oblique ejector pad has increased the butt area of moulding with the car kettle after the shaping, has improved the stability and the drawing of patterns efficiency of drawing of patterns, ensures to be difficult to shift at drawing of patterns in-process surface parting line, and the drawing of patterns action is stable, and the product percent of pass is higher, and it is extravagant to reduce manufacturing cost.

Description

Cavity back-off demoulding mechanism for injection mould of automobile kettle

Technical Field

The utility model belongs to the technical field of the mould, a die cavity back-off demoulding mechanism for car kettle injection mold is related to.

Background

The plastic mold is adopted to produce plastic products, such as automobile kettle plastic parts and the like, according to the characteristics and the service performance of the appearance structure of the product, the whole surfaces of the two side surfaces of the automobile kettle plastic are integrally inverted, and according to the traditional method, the mold cavity suspension core-pulling slide block is adopted for demolding, however, the product is a large automobile plastic part, the appearance requirement is higher, the original method has a complicated mold structure, the mold action is unstable, the surface parting line is easy to shift, the product qualification rate is low, the production cost is wasted, and technical innovation is needed under the background.

In order to overcome the defects of the prior art, people continuously explore and propose various solutions, for example, a chinese patent discloses an internal parting type elastic ejection resetting mechanism for a bumper (application number: 201920798596.2], the utility model discloses, include fixed plate, ejector pin board and fixed die plate in proper order, the fixed die plate top be equipped with the big straight top subassembly that can follow vertical direction reciprocating linear motion, the fixed die plate top still be equipped with and follow the elasticity reset assembly who is close to or keeps away from big straight top subassembly direction horizontal motion, elasticity reset assembly hug closely the cooperation with the big straight top subassembly mutually. The utility model discloses a set up arc piece, big kicking block and elasticity kicking block to one side, accomplish the drawing of patterns smoothly with the product from the die cavity back-off position through the cooperation between the three, in realizing the typing, avoid the mould to produce the overlap simultaneously, extension mould life improves product quality. But the proposal still easily appears the action unstability in the drawing of patterns process, and the surface parting line is easy to shift, has the defects of low product percent of pass, and waste of production cost.

Disclosure of Invention

The utility model aims at the above problem, a die cavity back-off demoulding mechanism for car kettle injection mold is provided.

In order to achieve the above purpose, the utility model adopts the following technical proposal:

the utility model provides a die cavity back-off demoulding mechanism for car kettle injection mold, includes die block and lower mould, the lower mould in be equipped with a plurality of die cavities of lower mould central line symmetry of edge, the die block in be equipped with lower mould arrangement groove, the lower mould match with the shape in lower mould arrangement groove and fit, lower mould bottom be equipped with a plurality of sliding plates of lower mould central line symmetry of edge, the position of sliding plate and die cavity corresponding, the sliding plate top be equipped with overhead oblique top assembly, the sliding plate can be followed and be close to or keep away from die cavity one end and do reciprocal linear motion, the position of overhead oblique top assembly and die cavity corresponding.

In the cavity back-off demoulding mechanism for the automobile kettle injection mould, the upper inclined ejector component comprises a first inclined ejector rod and a second inclined ejector rod which are arranged at the top of the sliding plate, and an inclined ejector push block is arranged at the top of the first inclined ejector rod.

In the cavity back-off demoulding mechanism for the automobile kettle injection mould, the first oblique ejector rod and the second oblique ejector rod are obliquely arranged, two stroke limiting rods which are parallel to each other are arranged at the top of the sliding plate, a plurality of limiting rod abutting plates are arranged at the top of the lower mould, and the limiting rod abutting plates are in abutting fit with the stroke limiting rods.

In foretell a die cavity back-off demoulding mechanism for car kettle injection mold, the stroke limiting rod in be equipped with the stroke limiting groove, stroke limiting groove opening towards the limiting rod butt plate, the limiting rod butt plate on be equipped with and extend to let in to the stroke limiting inslot prevent the off-position butt piece, prevent off-position butt piece and stroke limiting groove looks sliding fit.

In the cavity back-off demoulding mechanism for the injection mould of the automobile kettle, a plurality of sliding plate placing grooves which are symmetrical along the central line of the bottom mould are arranged in the bottom mould, and the sliding plate placing grooves are matched with the sliding plates in shape and correspond to the sliding plates in position.

In the cavity back-off demoulding mechanism for the automobile kettle injection mould, the bottom mould is internally provided with two limiting slide bar fixing seats, the tops of the limiting slide bar fixing seats are provided with limiting slide bars, and the limiting slide bars penetrate through the sliding plates and are in sliding fit with the limiting slide bars.

In the cavity back-off demoulding mechanism for the automobile kettle injection mould, two adjacent limiting slide bars are parallel to each other, and the limiting slide bar fixing seat is fixedly connected with the bottom mould.

In the cavity back-off demoulding mechanism for the automobile kettle injection mould, the bottom of the sliding plate accommodating groove is connected with a plurality of push plate sliding grooves, push plates capable of reciprocating along a straight line are arranged in the push plate sliding grooves, and the push plates are connected with the sliding plates through spiral connecting blocks.

In the cavity back-off demoulding mechanism for the automobile kettle injection mould, the central line of the spiral connecting block is parallel to the central line of the stroke limiting rod.

In the cavity back-off demoulding mechanism for the automobile kettle injection mould, a plurality of cooling water channels which are parallel to each other are arranged in the bottom mould.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a set up sliding plate, first oblique ejector pin, the oblique ejector pin of second and oblique ejector pad, can mould a drawing of patterns with the car kettle after the shaping, the oblique ejector pad has increased the butt area of moulding with the car kettle after the shaping, has improved the stability and the drawing of patterns efficiency of drawing of patterns, ensures to be difficult to shift at drawing of patterns in-process surface parting line, and the drawing of patterns action is stable, and the product percent of pass is higher, and it is extravagant to reduce manufacturing cost.

2. The utility model discloses a set up and prevent off-position butt piece and stroke limit groove, remove the in-process at the sliding plate, through preventing the sliding fit between off-position butt piece and the stroke limit groove, played the spacing effect of stroke to the sliding plate, avoid taking place the off-position condition at sliding plate, first oblique ejector pin and the oblique ejector pin of second, controlled stroke displacement, the drawing of patterns is accurate.

3. The utility model discloses a set up sliding plate and spacing slide bar, remove the in-process at the sliding plate, through sliding fit between sliding plate and the spacing slide bar, can avoid sliding plate to appear circumferential direction and angular deflection at the removal in-process, improved the accuracy of sliding plate displacement.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is an exploded schematic view of the present invention.

Fig. 2 is an exploded schematic view in another direction of the present invention.

Fig. 3 is a schematic structural view of the overhead pentroof assembly.

Fig. 4 is a schematic structural view of the overhead pitched roof assembly in another direction.

In the figure: the device comprises a bottom die 1, a lower die 2, a cavity 3, a lower die placing groove 4, a sliding plate 5, an upper inclined ejection assembly 6, a first inclined ejection rod 7, a second inclined ejection rod 8, an inclined ejection push block 9, a stroke limiting rod 10, a limiting rod abutting plate 11, a stroke limiting groove 12, an over-position preventing abutting block 13, a sliding plate placing groove 14, a limiting slide rod fixing seat 15, a limiting slide rod 16, a push plate sliding groove 166, a push plate 17, a spiral connecting block 18 and a cooling water channel 19.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 1-4, a cavity back-off demoulding mechanism for an injection mould of an automobile kettle comprises a bottom mould 1 and a lower mould 2, wherein a plurality of cavities 3 symmetrical along the central line of the lower mould 2 are arranged in the lower mould 2, a lower mould placing groove 4 is arranged in the bottom mould 1, the shapes of the lower mould 2 and the lower mould placing groove 4 are matched, a plurality of sliding plates 5 symmetrical along the central line of the lower mould 2 are arranged at the bottom of the lower mould 2, the positions of the sliding plates 5 correspond to those of the cavities 3, an upper inclined top component 6 is arranged at the top of each sliding plate 5, the sliding plates 5 can do reciprocating linear motion along one end close to or far away from the cavities 3, and the upper inclined top component 6 corresponds to the cavities 3.

In this embodiment, lower mould mounting groove 4 is used for settling fixed lower mould 2, when needs mould the piece to the car kettle after the shaping and carry out the drawing of patterns, through removing sliding plate 5, drive overhead oblique top subassembly 6 to moulding one end slope removal near the car kettle, and then mould the piece through the car kettle that overhead oblique top subassembly 6 will be located die cavity 3 and carry out the drawing of patterns, ensure to be difficult to shift at drawing of patterns in-process surface parting line, the drawing of patterns action is stable, the product percent of pass is higher, it is extravagant to reduce manufacturing cost.

Referring to fig. 3 and 4, the upper pitched roof module 6 includes a first pitched roof bar 7 and a second pitched roof bar 8 which are arranged on the top of the sliding plate 5, and a pitched roof push block 9 is arranged on the top of the first pitched roof bar 7.

Specifically speaking, when the automobile kettle after the shaping needs to be demolded, the sliding plate 5 is moved, the sliding plate 5 drives the first inclined ejector rod 7, the second inclined ejector rod 8 and the inclined ejector push block 9 to move, the automobile kettle after the shaping is demoulded, the inclined ejector push block 9 increases the abutting area of the automobile kettle after the shaping, and the stability and the demoulding efficiency of the demoulding are improved.

Referring to fig. 4, the first oblique ejector rod 7 and the second oblique ejector rod 8 are obliquely arranged, two parallel stroke limiting rods 10 are arranged at the top of the sliding plate 5, a plurality of limiting rod abutting plates 11 are arranged at the top of the lower die 2, and the limiting rod abutting plates 11 are in abutting fit with the stroke limiting rods 10.

In this embodiment, first oblique ejector pin 7 and second oblique ejector pin 8 are the slope setting, adopt the oblique top mode, ensure to be difficult to the aversion at drawing of patterns in-process surface parting line, two stroke limiting rod 10 and the limiting rod butt joint board 11 that are parallel to each other, and steerable drawing of patterns removes the stroke, avoids taking place the off-position condition, ensures drawing of patterns action stable, and the product percent of pass is higher, and it is extravagant to reduce manufacturing cost.

The stroke limiting device is characterized in that a stroke limiting groove 12 is formed in the stroke limiting rod 10, the opening of the stroke limiting groove 12 faces the limiting rod butt plate 11, an anti-over-position butt block 13 extending into the stroke limiting groove 12 is arranged on the limiting rod butt plate 11, and the anti-over-position butt block 13 is in sliding fit with the stroke limiting groove 12.

In the embodiment, in the moving process of the sliding plate 5, the sliding fit between the over-position prevention abutting block 13 and the stroke limiting groove 12 is adopted, the stroke limiting effect is achieved on the sliding plate 5, the over-position condition of the sliding plate 5, the first oblique ejector rod 7 and the second oblique ejector rod 8 is avoided, the stroke moving distance is controlled, and the demolding is accurate.

Referring to fig. 1, a plurality of sliding plate installation grooves 14 are symmetrically arranged in the bottom die 1 along the central line of the bottom die 1, and the sliding plate installation grooves 14 are matched with the sliding plates 5 in shape and in corresponding positions.

In this embodiment, the sliding plate placing groove 14 is used for placing and fixing the sliding plate 5, so as to prevent the sliding plate 5 from angular deviation and position deviation during the injection molding process.

The bottom die 1 is internally provided with two limiting slide rod fixing seats 15, the tops of the limiting slide rod fixing seats 15 are provided with limiting slide rods 16, and the limiting slide rods 16 penetrate through the sliding plates 5 and the sliding plates 5 are in sliding fit with the limiting slide rods 16.

In this embodiment, the limit slide rod fixing seat 15 is used for fixing the limit slide rod 16, the limit slide rod fixing seat 15 is fixed with the bottom die 1, and in the moving process of the sliding plate 5, through the sliding fit between the sliding plate 5 and the limit slide rod 16, the sliding plate 5 can be prevented from rotating circumferentially and deviating angularly in the moving process, so that the accuracy of the displacement of the sliding plate 5 is improved.

Referring to fig. 3, two adjacent limiting slide bars 16 are parallel to each other, and the limiting slide bar fixing seat 15 is fixedly connected with the bottom die 1.

In this embodiment, two adjacent limiting slide bars 16 are parallel to each other, so as to further ensure that the sliding plate 5 does not have circumferential rotation and angular deviation in the moving process, and the displacement accuracy is high.

Referring to fig. 2, the bottom of the slide plate accommodating groove 14 is connected with a plurality of push plate sliding grooves 166, push plates 17 capable of reciprocating along a straight line are arranged in the push plate sliding grooves 166, and the push plates 17 are connected with the slide plate 5 through a spiral connecting block 18.

In this embodiment, the push plate sliding groove 166 is used to mount the fixed push plate 17, and the spiral connecting block 18 plays a role in connection, and when the sliding plate 5 needs to be moved, the push plate 17 is pushed to drive the sliding plate 5 to move.

Referring to fig. 4, the center line of the spiral connecting block 18 is parallel to the center line of the stroke limiting rod 10, and a plurality of cooling water channels 19 are arranged in the bottom die 1.

In this embodiment, before the drawing of patterns, can cool off fast through cooling water course 19 to moulding, the cooling effect is better.

The utility model discloses a theory of operation is:

lower mould arrangement groove 4 is used for settling fixed lower mould 2, when needs carry out the drawing of patterns to the car kettle after the shaping piece of moulding, drive sliding plate 5 through promoting push pedal 17 and remove, drive first oblique ejector pin 7 through sliding plate 5, second oblique ejector pin 8 and oblique ejector pad 9 remove, the car kettle after the shaping piece of moulding of, the drawing of moulding of substance efficiency of production efficiency is improved, guarantee surface parting line is difficult to be shifted of moulding of production, product percent of production is stable, product qualification is high quality, and high quality of production quality, and low cost is good production of production quality, and low cost is good quality, and low production cost is good quality, and high quality, and low production efficiency is good production cost are good quality, and high quality is good quality, and high in quality, and low cost are good quality, and high in quality, and high in quality, high in the production cost are good quality, and high in quality, high in the production, and high in the production cost are good quality, and high in the production of moulding of.

In the moving process of the sliding plate 5, the anti-over-position abutting block 13 is in sliding fit with the stroke limiting groove 12, so that the stroke limiting effect is achieved on the sliding plate 5, the over-position condition of the sliding plate 5, the first oblique ejector rod 7 and the second oblique ejector rod 8 is avoided, the stroke moving distance is controlled, and the demolding is accurate.

The limiting slide rod fixing seat 15 is used for fixing the limiting slide rod 16, the limiting slide rod fixing seat 15 is fixed with the bottom die 1, and in the moving process of the sliding plate 5, the sliding plate 5 can be prevented from rotating circumferentially and deviating angularly in the moving process through sliding fit between the sliding plate 5 and the limiting slide rod 16, so that the accuracy of displacement of the sliding plate 5 is improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the spirit of the invention.

Although the terms of bottom die 1, bottom die 2, cavity 3, bottom die seating groove 4, slide plate 5, overhead lifter assembly 6, first lifter 7, second lifter 8, lifter 9, stroke limiter 10, limiter abutment plate 11, stroke limiter groove 12, anti-over abutment block 13, slide plate seating groove 14, limiter slide rod holder 15, limiter slide rod 16, pusher slide groove 166, pusher plate 17, screw connector block 18, cooling water channel 19, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims (10)

1. The utility model provides a die cavity back-off demoulding mechanism for car kettle injection mold, includes die block (1) and lower mould (2), its characterized in that, lower mould (2) in be equipped with a plurality of die cavities (3) along lower mould (2) central line symmetry, die block (1) in be equipped with lower mould mounting groove (4), lower mould (2) match with the shape of lower mould mounting groove (4) and fit, lower mould (2) bottom be equipped with a plurality of sliding plates (5) along lower mould (2) central line symmetry, sliding plate (5) corresponding with the position of die cavity (3), sliding plate (5) top be equipped with overhead oblique top subassembly (6), sliding plate (5) can be followed and be close to or keep away from die cavity (3) one end and do reciprocal linear motion, overhead oblique top subassembly (6) corresponding with the position of die cavity (3).

2. The cavity back-off demoulding mechanism for the injection mould of the kettle of the automobile as claimed in claim 1, wherein the upper inclined top component (6) comprises a first inclined top rod (7) and a second inclined top rod (8) which are arranged on the top of the sliding plate (5), and the top of the first inclined top rod (7) is provided with an inclined top push block (9).

3. The cavity back-off demoulding mechanism for the injection mould of the kettle of the automobile as claimed in claim 2, wherein the first oblique ejector rod (7) and the second oblique ejector rod (8) are arranged obliquely, two parallel stroke limiting rods (10) are arranged on the top of the sliding plate (5), a plurality of limiting rod abutting plates (11) are arranged on the top of the lower mould (2), and the limiting rod abutting plates (11) are in abutting fit with the stroke limiting rods (10).

4. The cavity back-off demolding mechanism for the injection mold of the automobile kettle according to claim 3, characterized in that a stroke limiting groove (12) is formed in the stroke limiting rod (10), the opening of the stroke limiting groove (12) faces the limiting rod abutting plate (11), an over-position preventing abutting block (13) extending into the stroke limiting groove (12) is arranged on the limiting rod abutting plate (11), and the over-position preventing abutting block (13) is in sliding fit with the stroke limiting groove (12).

5. The cavity back-off demolding mechanism for the injection mold of the kettle of the automobile as claimed in claim 3, wherein the bottom mold (1) is provided with a plurality of sliding plate accommodating grooves (14) symmetrical along the center line of the bottom mold (1), and the sliding plate accommodating grooves (14) are matched with the sliding plates (5) in shape and corresponding in position.

6. The cavity back-off demoulding mechanism for the injection mould of the kettle of the automobile according to claim 5, wherein two limit slide bar fixing seats (15) are arranged in the bottom mould (1), a limit slide bar (16) is arranged at the top of each limit slide bar fixing seat (15), the limit slide bar (16) penetrates through the sliding plate (5), and the sliding plate (5) is in sliding fit with the limit slide bar (16).

7. The cavity back-off demolding mechanism for the injection mold of the automobile kettle as claimed in claim 6, wherein two adjacent limiting slide bars (16) are parallel to each other, and the fixing seat (15) of the limiting slide bars is fixedly connected with the bottom mold (1).

8. The cavity back-off demoulding mechanism for the injection mould of the kettle of the automobile as claimed in claim 5, wherein the bottom of the slide plate placing groove (14) is connected with a plurality of push plate sliding grooves (166), a push plate (17) capable of reciprocating along a straight line is arranged in the push plate sliding groove (166), and the push plate (17) is connected with the slide plate (5) through a spiral connecting block (18).

9. The cavity back-off demoulding mechanism for the injection mould of the kettle of the automobile as claimed in claim 8, wherein the center line of the spiral connecting block (18) and the center line of the stroke limiting rod (10) are parallel to each other.

10. The cavity back-off demoulding mechanism for the injection mould of the kettle of the automobile according to claim 1, wherein a plurality of cooling water channels (19) which are parallel to each other are arranged in the bottom mould (1).

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