CN210362326U

CN210362326U - Ejection inner-sliding type drag hook structure of large and medium-sized automobile mould

Info

Publication number: CN210362326U
Application number: CN201921219591.6U
Authority: CN
Inventors: 黄金申; 吴照生
Original assignee: Ningbo Fareast Mould Making Co ltd
Current assignee: Ningbo Fareast Mould Making Co ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2020-04-21
Anticipated expiration: 2029-07-30

Abstract

The utility model relates to an ejecting inner sliding hook structure of a large and medium-sized automobile mold, which comprises a locking block, a locking hook and a guide rod. The outer and upper ends of the plate are provided with hooks that cooperate and lock with the locking block, and a spring is arranged between the inner end of the locking block and the upper push plate so that the locking block always protrudes outward from the upper push plate and is locked by the locking hook. The guide rod is vertically arranged above the locking block, and the upper end is fixed on the core. The middle of the locking block is longitudinally provided with an inclined groove for the lower end of the guide rod to be inserted into. The ejector rod passes through the lower push rod and abuts against the upper push rod. The utility model greatly simplifies the mold structure, adopts the inner sliding hook structure, can effectively complete each step action, realize the smooth demoulding of the product, and at the same time has good production stability, can shorten the production molding cycle, and can be applied and popularized in more molds.

Description

Ejection inner-sliding type drag hook structure of large and medium-sized automobile mould

Technical Field

The utility model belongs to the technical field of the vapour turning mold utensil, a ejecting interior slip formula drag hook structure of big-and-middle-sized mould of car is related to.

Background

With the development of the automobile industry, the requirements of automobile interior and exterior products are higher and higher, and the requirements of the molding cycle are shorter and shorter. In the automobile mould, because structural reason in the middle-sized and large-sized mould such as bumper, instrument board, side wall, vice instrument board has many times, need use ejecting many times in the mould structure just can reach the production requirement of drawing a mould, the structure such as polylith thimble board and a plurality of hydro-cylinder ejecting is adopted mostly to the tradition way, not only the structure is complicated, and the mould cost increases more moreover, the shaping cycle is also long partially, there are structural motion not smooth simultaneously in product production, potential safety hazards such as action failure, mould maintenance is also inconvenient, influence the normal production of product.

Therefore, the push-out inner-sliding type drag hook structure of the large and medium-sized automobile mold needs to be designed, so that each step of action can be effectively completed, smooth demolding of the product is realized, and the molding period is shortened.

Disclosure of Invention

The utility model aims to solve the technical problem that to foretell technical current situation and provide a simple structure, the drawing of patterns is smooth and easy, the big-and-middle-sized mould's of car ejecting interior slip formula drag hook structure that stability is good.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a mould includes from last core, push-up plate and the push down board that down sets gradually, its characterized in that of the ejecting interior slip formula drag hook structure of the big-and-middle-sized mould of car: the push-out inner-sliding type drag hook structure comprises a locking block, a locking drag hook and a guide rod, wherein the locking block is arranged in an upper push plate in a left-right sliding limiting manner, the lower end of the locking drag hook is fixed on the outer side of a lower push plate, the upper end of the locking drag hook is provided with a hook part matched and locked with the locking block, a spring which enables the locking block to extend out of the upper push plate and be locked with the locking drag hook all the time is arranged between the inner end of the locking block and the upper push plate, the upper push plate and the lower push plate are locked through the matching of the locking block and the locking drag hook, the guide rod is vertically arranged right above the locking block, the upper end of the guide rod is fixed on a mold core, the middle part of the locking block is longitudinally provided with an inclined plane groove for inserting the lower end of the guide rod, the push-out rod of an injection molding machine is abutted against the, the lower end of the guide rod is inserted into the inclined plane groove of the locking block to drive the locking block to move inwards to be separated from the locking drag hook, and the upper push plate continues to eject.

As the improvement, the locking piece is flat rectangle structure, goes up the concave right-hand member open-ended spout that is equipped with and supplies the locking piece to put into and certain distance horizontal slip of up end of push pedal, and spring support makes the locking piece have the trend that stretches out up push pedal and locking drag hook locking all the time right between the inner wall of spout and the rear end of locking piece.

And the upper end of the sliding groove is formed with stepped surfaces at the front side and the rear side, the front side and the rear side of the upper end of the locking block are formed with concave surfaces which are flush with the stepped surfaces, the locking block is arranged in the sliding groove, the front pressing bar and the rear pressing bar are fixed on the stepped surfaces and abut against the concave surfaces of the locking block, and the right side of the upper push plate and the two sides of the right opening of the sliding groove are provided with limiting blocks.

And the locking drag hook is L-shaped, the lower end of the locking drag hook is provided with an inward bent positioning boss, the right side of the lower push plate is concavely provided with a concave part for embedding the positioning boss, the positioning boss is embedded in the concave part and fixed through an inner hexagonal screw, and the lower end of the upper end hook part of the locking drag hook is abutted and locked with the upper end of the locking block.

Furthermore, the guide rod is in an inverted L shape, a positioning concave part for inserting the upper end of the guide rod is formed in the lower end face of the mold core, the upper end of the guide rod is inserted into the positioning concave part of the mold core and fixed with the mold core through a hexagon socket head cap screw, and the lower end of the guide rod is aligned with the inclined plane groove of the locking block.

And furthermore, the inclined plane groove is a penetrating groove which inclines downwards and rightwards, the left side of the bottom of the guide rod is formed into an inclined plane which is matched with the inclined plane groove and inclines downwards and rightwards, and a groove which is corresponding to the inclined plane groove and used for inserting the guide rod is formed in the bottom of the sliding groove of the upper push plate.

And finally, a floor is arranged below the lower push plate, guide holes for penetrating the ejection rods of the injection molding machine are correspondingly formed in the bottom plate and the lower push plate, and the ejection rods penetrate through the floor and the lower push plate to abut against the lower end face of the upper push plate.

Compared with the prior art, the utility model has the advantages of: set up locking piece, locking drag hook and guide bar, when ejecting stick was upwards ejecting, drive push pedal and locking drag hook rebound, when ejecting stick continues ejecting, the lower extreme of guide bar inserted the inclined plane inslot of locking piece and drives the locking piece rebound and break away from with the locking drag hook, and it is ejecting that the push pedal continues. The utility model discloses simplified the mould structure greatly, adopted interior slip formula drag hook structure, can effectively accomplish each step action, realized the smooth drawing of patterns of product, the while production stability is good, can shorten production shaping cycle, can be in more moulds application promotion.

Drawings

Fig. 1 is a schematic structural view of the mold of the present invention in a closed state;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a cross-sectional view of the mold in a closed state;

FIG. 4 is a schematic structural diagram of the mold in a one-step ejection state;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a schematic structural view of the mold in a secondary ejection state;

fig. 7 is a cross-sectional view of fig. 6.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

As shown in fig. 1 to 7, the mold comprises a mold core B, an upper push plate C, a lower push plate D and a floor E which are sequentially arranged from top to bottom, wherein guide holes for penetrating ejection rods 5 of an injection molding machine are correspondingly formed in the floor E and the lower push plate D, and the ejection rods 5 penetrate through the guide holes of the floor E and the lower push plate D and are abutted against the lower end surface of the upper push plate C; the push-out inner-sliding type drag hook structure comprises a locking block 1, a locking drag hook 2 and a guide rod 3, wherein the locking block 1 is arranged in an upper push plate C in a left-right sliding limiting manner, the lower end of the locking drag hook 2 is fixed on the outer side of a lower push plate D, the upper end of the locking drag hook 2 is provided with a hook part 22 which is matched and locked with the locking block 1, a spring 5 which enables the locking block 1 to extend out of the upper push plate C and the locking drag hook 2 all the time is arranged between the inner end of the locking block 1 and the upper push plate C, the upper push plate C and the lower push plate D are locked through the matching of the locking block 1 and the locking drag hook 2, the guide rod 3 is vertically arranged right above the locking block 1, the upper end of the guide rod 3 is fixed on a mold core B, the middle part of the locking block 1 is longitudinally provided with an inclined plane groove 12 for inserting the lower end of the guide rod 3, the push-, the push-up plate C and the locking drag hook 2 are driven to move upwards, when the ejection rod 4 continues to eject, the lower end of the guide rod 3 is inserted into the inclined plane groove 12 of the locking block 1 to drive the locking block 1 to move inwards to be separated from the locking drag hook 2, and the push-up plate C continues to eject.

The specific structure is as follows: the locking block 1 is of a flat rectangular structure, the upper end face of the upper push plate C is concavely provided with a sliding groove C1 with an opening at the right end, the sliding groove C1 is used for the locking block 1 to be placed in and slide left and right at a certain distance, and the spring 5 is supported between the inner wall of the sliding groove C1 and the rear end of the locking block 1, so that the locking block 1 has the tendency of always extending out of the upper push plate C right to be locked with the locking draw hook 2; step surfaces C2 are formed on the front side and the rear side of the upper end of the sliding groove C1, concave surfaces 11 which are flush with the step surfaces C2 are formed on the front side and the rear side of the upper end face of the locking block 1, the locking block 1 is arranged in the sliding groove C1, the front pressing bar 6 and the rear pressing bar 6 are fixed on the step surfaces C2 through screws and abut against the concave surfaces 11 of the locking block 1, and limiting blocks 7 are respectively fixedly arranged on the right side of the upper push plate C and on the two sides of the right opening of the sliding groove C1, so that the locking block 1 is limited in the sliding groove C1; the locking draw hook 2 is L-shaped, the lower end of the locking draw hook 2 is provided with a positioning boss 21 which is bent inwards, the right side of the lower push plate D is concavely provided with a concave part D1 for embedding the positioning boss 21, the positioning boss 21 is embedded in the concave part D1 and fixed with the lower push plate D through a hexagon socket head cap screw 8, and the lower end of the upper end hook part 22 of the locking draw hook 2 is abutted against and locked with the upper end of the locking block 1; the guide rod 3 is the shape of falling L, the location concave part that supplies the upper end of guide rod 3 to plant is seted up to the lower terminal surface of core B, it is fixed with core B through hexagon socket screw 9 in core B's location concave part to plant the upper end of guide rod 3, the lower extreme of guide rod 3 aligns with the inclined plane groove 12 of lock block 1, inclined plane groove 12 is the groove that runs through of downward slope to the right side, the bottom left side shaping of guide rod 3 is the inclined plane 31 of downward slope to the right side that offsets the complex with inclined plane groove 12, like this when guide rod 3 inserts inclined plane groove 12, can drive lock block 1 inwards movement, the corresponding confession guide rod 3 male recess C3 with inclined plane groove 12 is seted up to the spout CA bottom of last push pedal C.

The specific ejection process is as follows: the mold is ejected for the first time, an ejection rod 4 of the injection molding machine pushes against the upper push plate C to eject upwards, the upper push plate C and the locking draw hook 2 are driven to move upwards to the position of the guide rod 3, and as shown in figures 4 and 5, the locking block 1 is about to be separated from the locking draw hook 2; ejecting stick 5 of injection molding machine withstands push-up board C and continues ejecting upwards, the lower extreme of guide bar 3 insert with the inclined plane groove 12 of locking piece 1 in, locking piece 1 overcomes the effort inward movement of spring 5 and breaks away from with locking drag hook 2 under the extrusion of guide bar 3, push-up board C and push-down board D throw off this moment, locking drag hook 2 and push-down board D stop motion, push-up board C continues ejecting under the promotion of ejecting stick 5, as shown in fig. 6, 7, accomplish ejecting for the second time.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An ejecting inner sliding hook structure of a large and medium-sized automobile mold, the mold comprises a core, an upper push plate and a lower pushing plate sequentially arranged from top to bottom, it is characterized in that: the ejecting inner sliding hook structure It includes a locking block, a locking hook and a guide rod, wherein the locking block can be slid left and right and is limited in the upper push plate, the lower end of the locking hook is fixed on the outside of the lower push plate, and the upper end of the locking hook has a connection with the locking block. In cooperation with the locking hook, there is a spring between the inner end of the locking block and the upper push plate, so that the locking block has a spring that always extends outward to the upper push plate and is locked by the locking hook, and the upper push plate and the lower push plate pass through the lock The stop block and the locking hook are matched and locked, the guide rod is vertically arranged directly above the lock block, the upper end of the guide rod is fixed on the core, and the middle part of the lock block is longitudinally provided with an inclined groove for the lower end of the guide rod to be inserted into. , the ejector rod of the injection molding machine passes through the lower push rod and abuts against the bottom surface of the upper push rod. When the ejector rod is pushed up, it drives the upper push plate and the locking hook to move upward. When the ejector rod continues to be pushed out, the guide The lower end of the rod is inserted into the slant groove of the locking block to drive the locking block to move inwardly and disengage from the locking hook, and the upper push plate continues to be pushed out.

2 . The ejecting inner sliding hook structure according to claim 1 , wherein the locking block has a flat rectangular structure, and the upper end surface of the upper push plate is concavely provided with a locking block to be inserted and fixed. 3 . The chute that is open to the right end of the left and right sliding is supported by a spring between the inner wall of the chute and the rear end of the locking block, so that the locking block has a tendency to always extend to the right of the upper push plate and lock with the locking hook.

3. The ejecting inner sliding hook structure according to claim 2, characterized in that: the upper end of the chute is formed with stepped surfaces on both sides, and the front and rear sides of the upper end of the locking block are formed with the stepped surfaces. The flat concave surface, the locking block is arranged in the chute, the front and rear pressure strips are fixed on the step surface and abut against the concave surface of the locking block, and there are limit blocks on the right side of the upper push plate and on both sides of the right opening of the chute.

4 . The ejecting inner sliding hook structure according to claim 3 , wherein the locking hook is L-shaped, the lower end of the locking hook is provided with a positioning boss bent inward, and the lower end of the lower push plate is provided with a positioning boss. The right side is concavely provided with a concave portion for the positioning boss to be embedded, the positioning boss is embedded in the concave portion and fixed by a hexagon socket head screw, and the lower end of the upper end hook of the locking hook is locked against the upper end of the locking block.

5 . The ejecting inner sliding hook structure according to claim 4 , wherein the guide rod is in an inverted L shape, and the lower end face of the core is provided with a positioning recess for inserting the upper end of the guide rod, and the guide rod is 5. 6 . The upper end of the guide rod is inserted into the positioning recess of the core and fixed with the core by hexagon socket screws, and the lower end of the guide rod is aligned with the inclined groove of the locking block.

6 . The ejecting inner sliding hook structure according to claim 5 , wherein the inclined groove is a through groove inclined downward and rightward, and the bottom left side of the guide rod is formed into a direction that is abutted and matched with the inclined groove. 7 . The bottom of the inclined plane is inclined to the right, and the bottom of the chute of the upper push plate is provided with a groove corresponding to the inclined plane groove for the guide rod to be inserted into.

7. The ejecting inner sliding hook structure according to any one of claims 1 to 6, wherein a floor is provided below the lower push plate, and a bottom plate and a lower push plate are correspondingly provided with injection molding machines. The guide hole through which the ejector rod is inserted, the ejector rod passes through the floor, and the lower push plate is in contact with the lower end face of the upper push plate.