CN210552816U

CN210552816U - Bumper mould second grade bullet piece internal tension warp demoulding structure

Info

Publication number: CN210552816U
Application number: CN201921326493.2U
Authority: CN
Inventors: 邵月华; 杨海天
Original assignee: Changyuan Technology Tianjin Co ltd
Current assignee: Changyuan Technology Tianjin Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-05-19
Anticipated expiration: 2029-08-15

Abstract

The utility model discloses a draw in bumper mould second grade bullet piece and warp demoulding structure, include: the mold comprises an inclined ejector block, a reverse ejector block, a connecting rod, a guide block, a spring, an inclined ejector guide rod and a first locking screw, wherein the connecting rod penetrates through a first cavity arranged in the inclined ejector block; the combined structure of the small-sized internal inclined top is adopted to clamp the product to be deformed to the inner side when the mold is opened, so that the requirement of hiding the fractal line type automobile bumper mold for quick demolding is met, and the injection molding production period of the mold is greatly shortened.

Description

Bumper mould second grade bullet piece internal tension warp demoulding structure

Technical Field

The utility model relates to an automobile bumper mould design field especially relates to a draw deformation demoulding structure in bumper mould second grade bullet piece.

Background

With the rapid development of the automobile industry, the requirement on the appearance of the automobile is higher and higher, and particularly, the defect that any die splicing line cannot be arranged in the appearance area of the product is overcome, so that the requirement is particularly remarkable in the die design of exterior products such as automobile bumpers and the like.

At present, the hidden parting line structure of the engine cover plate position of the common automobile bumper in the industry mostly adopts an inner oblique top structure and a large top block designed on the outer side, a large sliding block is fixed on the top block, the parting line position of the sliding block is in an invisible position after loading, after the injection molding of the mold is completed, a front mold and a rear mold begin to be opened at a low speed, the large top block and a front mold cavity keep synchronous ejection at the moment, the sliding block is pushed inwards under the control of a rear compensation special-shaped guide rail to enable the back-off amount of a product in the cavity to be separated from the cavity, then the mold cavity side rapidly opens the mold to complete the inner parting area demolding process, then the large top block of the rear mold rapidly pushes the sliding block to rapidly retreat under the control of the rear compensation guide rail, so as to be separated from the product, and finally realize the whole demolding.

However, this structure has the following problems: the slide block and ejector block structure needs a large mold space, so that the size of the mold is increased by more than 150mm, the weight of the mold is increased by more than 4 tons, not only can the cost of the mold be increased greatly, but also the weight of the mold is increased, so that the inertia force of an injection molding machine is increased in the production process to generate large damage, and meanwhile, because the weight of the slide block reaches more than 2 tons, two large supporting plates need to be designed on the side of the mold, the complexity of the mold structure is increased, and the production period is increased by about 5 seconds.

Disclosure of Invention

In order to solve the defects of the prior art, the utility model aims to provide a draw in bumper mould second grade bullet piece and warp demoulding structure.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a drawing deformation demoulding structure in bumper mould second grade bullet piece, includes: the inclined ejection block is fixedly installed on the inclined ejection guide rod, the inclined ejection guide rod is fixedly installed on a die ejector plate through a base, a groove which is consistent with the structure of the inclined ejection block is formed in one side of the inclined ejection block, the inclined ejection block is clamped in the groove, the inclined ejection block is further provided with a first cavity and a second cavity which penetrate through the inner structure of the inclined ejection block and are communicated with the groove, the connecting rod penetrates through the first cavity, one side end of the connecting rod is fixedly connected with the guide block, the other side end of the connecting rod is fixedly connected with the inclined ejection block, a first connecting hole which is matched with the second cavity is formed in the inclined ejection block, and the first locking screw penetrates through the second cavity and is screwed into the first connecting hole, the spring housing is in on the first locking screw, just the spring with be equipped with the spring kicking block between the first locking screw tip, overall structure is located bumper mould back template.

The first cavity of the inclined ejector block is provided with a self-lubricating guide sleeve, and the connecting rod is sleeved in the self-lubricating guide sleeve to ensure smooth sliding of the connecting rod.

The side edge of the first cavity of the inclined ejector block is provided with a communicated circular groove, the bottom of the circular groove is provided with a second connecting hole, a gasket is installed at the bottom of the circular groove through a second locking screw, and the edge of the gasket exceeds the edge of the self-lubricating guide sleeve so as to fix the self-lubricating guide sleeve to prevent the self-lubricating guide sleeve from falling off.

And a third connecting hole and a first positioning hole are respectively formed in two sides of the reverse ejection block and communicated with each other.

The guide block is a square block, a fourth connecting hole and a second positioning hole are formed in the two sides of the guide block respectively, and the fourth connecting hole is communicated with the second positioning hole.

The connecting rod is cylindrical, a fifth connecting hole and a sixth connecting hole are formed in two sides of the connecting rod respectively, the two ends of the connecting rod are inserted into the first positioning hole of the reverse ejector block and the second positioning hole of the guide block respectively, and the reverse ejector block and the guide block are fixedly connected at two ends of the connecting rod through a third locking screw and a fourth locking screw.

The inclined ejection guide rod is cylindrical, a clamping groove is formed in the top end of the inclined ejection guide rod, a seventh connecting hole and a square groove which is perpendicular to and opposite to the seventh connecting hole and communicated with the seventh connecting hole are formed in the bottom of the inclined ejection block, the inclined ejection guide rod penetrates through the seventh connecting hole and the square groove in sequence, and the inclined ejection guide rod is fixedly connected to the lower portion of the inclined ejection block through a guide rod pressing plate.

The middle part of the guide rod pressing plate is consistent with the clamping groove structure so as to be convenient for clamping and tightly buckling, and the guide rod pressing plate is fixed in the square groove at the bottom of the inclined ejecting block through a screw to prevent the inclined ejecting guide rod from rotating.

Compared with the prior art, the beneficial effects of the utility model are that: the structure is simple, and the structure of the hidden parting line die is effectively simplified; the combined structure of the small-sized internal inclined top is adopted to clamp a product to be pulled and deformed inwards when the mold is opened, so that the requirement of hiding the fractal line type automobile bumper mold for quick demolding is met, the width of the mold is smaller than that of the original structure, the weight is light, the mold material and the manufacturing cost are greatly reduced, and meanwhile, the ejection action and the mold opening action are carried out quickly and synchronously, so that the injection molding production period of the mold is effectively shortened.

Drawings

Fig. 1 is a first schematic view of the three-dimensional structure of the present invention;

fig. 2 is a second schematic view of the three-dimensional structure of the present invention;

fig. 3 is a first schematic view of the three-dimensional structure of the reverse ejector block of the present invention;

fig. 4 is a second schematic view of the three-dimensional structure of the reverse ejector block of the present invention;

fig. 5 is a first schematic view of the three-dimensional structure of the angle ejector block of the present invention;

fig. 6 is a second schematic view of the spatial structure of the angle ejector block of the present invention;

fig. 7 is a first schematic view of the three-dimensional structure of the connecting rod of the present invention;

fig. 8 is a second schematic view of the three-dimensional structure of the connecting rod of the present invention;

fig. 9 is a first schematic view of the three-dimensional structure of the guide block of the present invention;

fig. 10 is a second schematic view of the three-dimensional structure of the guide block of the present invention;

fig. 11 is a partial schematic view of the position relationship between the self-lubricating guide sleeve and the second locking screw according to the present invention;

fig. 12 is a schematic view of the connection relationship of the local structures of the present invention;

fig. 13 is a three-dimensional structure view of the slanted ejecting guide bar of the present invention;

fig. 14 is a partial schematic view of the connection between the lifter guide rod and the lifter block according to the present invention;

fig. 15 is a partial schematic view of the position relationship between the present invention and the rear mold of the mold;

fig. 16 is a state diagram of the present invention when ejecting the product.

In the figure: 1-inclined top block, 2-reverse top block, 3-connecting rod, 4-guide block, 5-spring, 6-inclined top guide rod, 7-first locking screw, 8-second locking screw, 9-third locking screw, 10-fourth locking screw, 11-groove, 12-first cavity, 13-second cavity and 14-circular groove, 15-a second connecting hole, 16-a self-lubricating guide sleeve, 17-a gasket, 18-a seventh connecting hole, 19-a guide rod pressing plate, 20-a spring top block, 21-a first connecting hole, 22-a third connecting hole, 23-a first positioning hole, 41-a fourth connecting hole, 42-a second positioning hole, 31-a fifth connecting hole, 32-a sixth connecting hole and 61-a clamping groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 to 16, the utility model provides a drawing deformation demoulding structure in bumper mould second grade bullet piece, include: the inclined ejection block comprises an inclined ejection block 1, an inverted ejection block 2, a connecting rod 3, a guide block 4, a spring 5, an inclined ejection guide rod 6 and a first locking screw 7, wherein the inclined ejection block 1 is fixedly installed on the inclined ejection guide rod 6, the inclined ejection guide rod 6 is fixedly installed on a mold ejector plate through a base, a groove 11 which is consistent with the structure of the inverted ejection block 2 is arranged on one side of the inclined ejection block 1, the inverted ejection block 2 is clamped into the groove 11, the inclined ejection block 1 is further provided with a first cavity 12 and a second cavity 13 which penetrate through the inner structure of the inclined ejection block and are communicated with the groove 11, the connecting rod 3 penetrates through the first cavity 12, one side end part of the connecting rod 3 is fixedly connected with the guide block 4, the other side end part of the connecting rod 3 is fixedly connected with the inverted ejection block 2, the inverted ejection block 2 is provided with a first connecting hole 21 which is matched with the second cavity 13 for use, first locking screw 7 passes second die cavity 13 and twists in the first connecting hole 21, spring 5 cover on first locking screw 7, and be located second die cavity 13, it provides elasticity for anti-kicking block 2 is laminated in to recess 11, is provided with the shoulder surface in the second die cavity 13, and spring 5's one end top is on the shoulder surface, and overall structure is arranged in bumper mould back template.

Specifically, a self-lubricating guide sleeve 16 is arranged in a first cavity 12 of the inclined ejector block 1, and the connecting rod 3 is sleeved in the self-lubricating guide sleeve 16 so as to ensure smooth sliding of the connecting rod 3.

More specifically, a circular groove 14 communicated with the first cavity 12 side of the inclined ejecting block 1 is arranged, a second connecting hole 15 is arranged at the bottom of the circular groove 14, a gasket 17 is installed at the bottom of the circular groove 14 through a second locking screw 8, and the edge of the gasket 17 exceeds the edge of the self-lubricating guide sleeve 16, so that the self-lubricating guide sleeve 16 is fixed and prevented from falling off.

Specifically, a third connecting hole 22 and a first positioning hole 23 are respectively arranged on two sides of the reverse ejection block 2, and the third connecting hole 22 is communicated with the first positioning hole 23.

Specifically, the guide block 4 is a square block, and both sides of the guide block are respectively provided with a fourth connecting hole 41 and a second positioning hole 42, and the fourth connecting hole 41 is communicated with the second positioning hole 42.

Specifically, the connecting rod 3 is cylindrical, and both sides of the connecting rod are respectively provided with a fifth connecting hole 31 and a sixth connecting hole 32, both ends of the connecting rod 3 are respectively inserted into the first positioning hole 23 of the reverse ejector block 2 and the second positioning hole 42 of the guide block 4, and a third locking screw 9 is sequentially screwed into the third connecting hole 22 and the fifth connecting hole 31 to fixedly connect the reverse ejector block 2 to one end of the connecting rod 3; the fourth locking screw 10 is sequentially screwed into the fourth connecting hole 41 and the sixth connecting hole 32 to fixedly connect the guide block 4 to the other end of the connecting rod 3.

Specifically, the pitched roof guide rod 6 is cylindrical, a clamping groove 61 is formed in the top end of the pitched roof guide rod 6, a seventh connecting hole 18 and a square groove which is vertically opposite to the seventh connecting hole 18 and communicated with each other are formed in the bottom of the pitched roof block 1, the pitched roof guide rod 6 penetrates through the seventh connecting hole 18 and the square groove in sequence, and the pitched roof guide rod 6 is fixedly connected to the lower portion of the pitched roof block 1 through a guide rod pressing plate 19.

More specifically, the middle part of the guide rod pressing plate 19 is structurally consistent with the clamping groove 61 so as to be clamped tightly, two sides of the guide rod pressing plate 19 are square blocks, and two sides of the guide rod pressing plate 19 are fixed in the square groove at the bottom of the inclined ejecting block 1 through screws so as to prevent the inclined ejecting guide rod 6 from rotating.

In addition, two guide grooves are formed in the rear template of the bumper mold, the lower half portion of each guide groove is provided with a certain gradient, the upper half portion of each guide groove is a straight surface, one guide groove is in sliding connection with the guide block 4, and the other guide groove is in sliding connection with the first locking screw 7 and the spring 5.

The utility model discloses a concrete working process does: after the injection molding of a product is completed, the mold is opened to eject the product, under the action of a spring 5, a reverse ejector block 2 clamps a buckle part of the product, an ejector pin plate moves upwards to drive an oblique ejector guide rod 6 to move upwards, a guide block 4 moves in a guide groove of a rear mold plate and moves for a certain distance, the guide block 4 moves to a straight surface from an inclined surface of the guide groove, the guide block 4 is ejected forwards, the reverse ejector block 2 moves forwards due to the action of a connecting rod 3, the buckle of the product is separated, the upward ejection is continued, the product mold fully ejects the product to be demolded, the mold is closed under the action of an injection molding machine to complete the resetting of all mechanisms, and the next injection molding production cycle is.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a drawing deformation demoulding structure in bumper mould second grade bullet piece which characterized in that includes: the inclined ejection block comprises an inclined ejection block (1), an anti-ejection block (2), a connecting rod (3), a guide block (4), a spring (5), an inclined ejection guide rod (6) and a first locking screw (7), wherein the inclined ejection block (1) is fixedly installed on the inclined ejection guide rod (6), the inclined ejection guide rod (6) is fixedly installed on a mold ejector plate through a base, a groove (11) which is consistent with the structure of the anti-ejection block (2) is formed in one side of the inclined ejection block (1), the anti-ejection block (2) is clamped into the groove (11), the inclined ejection block (1) is further provided with a first cavity (12) and a second cavity (13) which penetrate through the inner structure of the inclined ejection block and are communicated with the groove (11), the connecting rod (3) penetrates through the first cavity (12), one side end part of the connecting rod (3) is fixedly connected with the guide block (4), and the other side end part of the connecting rod (3) is fixedly connected with the anti-ejection block (2), the anti-ejector block (2) is provided with a first connecting hole (21) which is matched with the second cavity (13) for use, the first locking screw (7) penetrates through the second cavity (13) and is screwed into the first connecting hole (21), the spring (5) is sleeved on the first locking screw (7), and a spring ejector block (20) is arranged between the spring (5) and the end part of the first locking screw (7).

2. The secondary elastic block inward-pulling deformation demoulding structure of the bumper mould as claimed in claim 1, wherein a self-lubricating guide sleeve (16) is arranged in the first cavity (12) of the inclined ejector block (1), and the connecting rod (3) is sleeved in the self-lubricating guide sleeve (16) to ensure smooth sliding of the connecting rod (3).

3. The secondary bumper die elastic block inward-pulling deformation demolding structure as claimed in claim 2, wherein a communicated circular groove (14) is formed in the side edge of the first cavity (12) of the inclined ejector block (1), a second connecting hole (15) is formed in the bottom of the circular groove (14), a gasket (17) is installed at the bottom of the circular groove (14) through a second locking screw (8), and the edge of the gasket (17) exceeds the edge of the self-lubricating guide sleeve (16) so as to fix the self-lubricating guide sleeve (16) and prevent the self-lubricating guide sleeve (16) from falling off.

4. The secondary bumper die block inward-pulling deformation demolding structure as claimed in claim 1, wherein a third connecting hole (22) and a first positioning hole (23) are formed in two sides of the reverse ejection block (2), and the third connecting hole (22) is communicated with the first positioning hole (23).

5. The internal pulling deformation demoulding structure of the secondary elastic block of the bumper mould as recited in claim 1, wherein the guide block (4) is a square block, and both sides of the guide block are respectively provided with a fourth connecting hole (41) and a second positioning hole (42), and the fourth connecting hole (41) is communicated with the second positioning hole (42).

6. The secondary bumper die elastic block inward-pulling deformation demolding structure as claimed in claim 1, wherein the connecting rod (3) is cylindrical, a fifth connecting hole (31) and a sixth connecting hole (32) are formed in two sides of the connecting rod, two ends of the connecting rod (3) are inserted into the first positioning hole (23) of the reverse ejection block (2) and the second positioning hole (42) of the guide block (4) respectively, and the reverse ejection block (2) and the guide block (4) are fixedly connected to two ends of the connecting rod (3) through a third locking screw (9) and a fourth locking screw (10).

7. The internal pulling deformation demoulding structure of the secondary elastic block of the bumper mould as recited in claim 1, wherein the slanted ejecting guide rod (6) is cylindrical and provided with a clamping groove (61) at the top end, the bottom of the slanted ejecting block (1) is provided with a seventh connecting hole (18) and a square groove which is vertically opposite to the seventh connecting hole (18) and is communicated with each other, the slanted ejecting guide rod (6) sequentially passes through the seventh connecting hole (18) and the square groove, and the slanted ejecting guide rod (6) is fixedly connected below the slanted ejecting block (1) through a guide rod pressing plate (19).

8. The internal pulling deformation demoulding structure of the secondary elastic block of the bumper mould as recited in claim 7, wherein the middle part of the guide rod pressing plate (19) is in structural conformity with the clamping groove (61) so as to be tightly buckled, and the guide rod pressing plate (19) is fixed in a square groove at the bottom of the inclined ejecting block (1) through a screw to prevent the inclined ejecting guide rod (6) from rotating.