CN218749090U - Injection mold of rotary handle core-pulling structure - Google Patents

Abstract

The utility model provides an injection mold of rotary type handle structure of loosing core, including A board and B board, be equipped with the structure of loosing core between A board and the B board, the structure of loosing core includes oblique guide pillar, first slider, second slider and third slider, first slider passes through the fastener with the second slider and is connected, be equipped with the elasticity piece that resets between first slider and the second slider, be equipped with first pivot on the third slider, be equipped with on the first slider and cooperate the drawing hook of being connected with first pivot, be equipped with on the first slider with oblique guide pillar complex oblique guide way, during the die sinking, under the promotion that oblique guide pillar and elasticity reset, first slider backward movement just draws the first pivot on the hook drive third slider, make the third slider rotate along the centre of a circle of product circular arc, deviate from the vertical back-off of product in order to accomplish the first time and loose core, when first slider moves to setting for the distance, drive second slider and third slider motion, deviate from the horizontal back-off of product in order to accomplish the second time of loosing core. The utility model has the characteristics of structural design is reasonable, the good reliability and the security height etc.

Description

Injection mold of rotary handle core-pulling structure

Technical Field

The utility model relates to an injection molding machine technical field especially relates to a rotary type handle injection mold of structure of loosing core.

Background

Most of handle part structures of drawer products in the refrigerator market are designed to be directly demoulded up and down at present, and the main reasons are that the manufacturing and maintenance costs of the handle hollow structure are high, the structure of the mould is complex, and the maintenance is inconvenient.

Chinese patent document No. CN216732854U discloses a multiple core-pulling arc shaft die in 2021, which specifically discloses a multiple core-pulling arc shaft die, including a fixed die plate, a movable die plate, an inclined guide post, a first slide block, a first core-pulling piece, a second pull block, a second core-pulling piece, a third slide block, a core-pulling oil cylinder, a rack, a gear, and a guide rail plate. The first sliding block is connected with the first core pulling part, the lower end of the second pulling block is inserted into the second core pulling part, the inner end of the third core pulling part extends into the cavity, the outer end of the third core pulling part is connected with the third sliding block, the third sliding block is connected to the arc-shaped guide rail of the guide rail plate in a sliding mode, a convex tooth on the third sliding block is meshed with a gear, the gear is meshed with a rack, the rack is movably arranged in the movable mold plate in a penetrating mode, and the outer end of the rack is connected with a piston rod of the core pulling oil cylinder. But the core-pulling structure still has the defects of complexity, inconvenient maintenance and the like.

Therefore, further improvements are desired.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rotary type handle structure of loosing core's injection mold is in order to overcome the weak point among the prior art, and this structure of loosing core utilizes the slider secondary to loose core, solves vertical back-off earlier, wholly transversely looses core again, its structural design is reasonable, the good reliability and the security height.

According to the injection mold of rotary type handle structure of loosing core of this purpose design, including A board and B board, the A board with be equipped with the structure of loosing core between the B board, the structure of loosing core includes oblique guide pillar, first slider, second slider and third slider, first slider with the second slider passes through the fastener and connects, first slider with be equipped with elasticity between the second slider and reset the piece, be equipped with first pivot on the third slider, be equipped with on the first slider with the drawing that first pivot cooperation is connected colludes, be equipped with on the first slider with oblique guide way of oblique guide pillar complex, during the die sinking the oblique guide pillar with elasticity resets under the promotion of piece, first slider rearward movement just draw and collude the drive first pivot on the third slider makes the third slider rotates to deviating from along the centre of a circle of circular arc, the vertical back-off of product is in order to accomplish the first time and loosens core, works as first slider removes after to the settlement distance, drives the second slider with the third slider motion is deviate from the horizontal back-off of product is in order to accomplish the second time of loosing core.

Be equipped with first stopper on the B board, second slider bottom is equipped with the first draw runner of leading, during the die sinking, the second slider passes through the first draw runner with keep stillness under the effect of first stopper.

The core pulling structure further comprises a second rotating shaft, and the second rotating shaft penetrates through the second sliding block and then is connected with the third sliding block.

The axis of the second rotating shaft is consistent with the circular arc center of the product.

The bottom of the second sliding block is uniformly provided with a plurality of guide blocks, the tops of the guide blocks are provided with cambered surfaces, the third sliding block is provided with a first groove connected with the cambered surfaces of the guide blocks in a matched mode, and the third sliding block can rotate and be positioned along the guide blocks.

The axis of the cambered surface is concentric with the axis of the second rotating shaft.

And the B plate is provided with a limiting clamp, and the limiting clamp is connected with the bottom of the second sliding block in a matching manner.

And a second limiting block used for positioning the third sliding block during assembly is arranged in the first sliding block.

The pull hook is provided with a second groove matched with the first rotating shaft, and the second groove is in an inverted U shape.

And a second guide sliding strip is arranged between the first sliding block and the second sliding block.

The utility model discloses an injection mold of core pulling structure is taken out to rotary type handle, open the slider of handle part structure for three, carry out twice and loose core, reset under the promotion of piece through oblique guide pillar and elasticity during the die sinking, first slider backward movement and draw and collude the first pivot on driving the third slider, make the third slider rotate along the centre of a circle of product circular arc, the vertical back-off of deviating from the product is in order to accomplish and is firstly loosed core, remove to setting for after the distance when first slider, drive second slider and third slider motion, horizontal back-off until deviating from the product is in order to accomplish and is loosed core for the second time. Utilize the slider secondary to loose core, solve vertical back-off earlier, wholly transversely loose core again, it has characteristics such as structural design is reasonable, the good reliability and the security height.

Drawings

Fig. 1 is an exploded schematic view of a rotary handle core-pulling structure according to an embodiment of the present invention.

Fig. 2 is another schematic view of an exploded view of a rotary handle core-pulling structure according to an embodiment of the present invention.

Fig. 3 and fig. 4 are diagrams of the motion state of the first slider and the third slider after the mold is opened according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of the first guiding strip and the first limiting block according to an embodiment of the present invention.

Fig. 6 is a schematic view of a matching structure of the inclined guide post and the first slider in an embodiment of the present invention.

Fig. 7 is a schematic view of a structure of the first rotating shaft and the pull hook according to an embodiment of the present invention.

Fig. 8 is a schematic view of a structure of the guide block and the third slide block in an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 8 is:

the sliding guide structure comprises a 1-A plate, a 2-B plate, a 3-inclined guide post, a 4-first sliding block, a 401-inclined guide groove, a 402-third groove, a 5-second sliding block, a 6-third sliding block, a 601-first groove, a 7-elastic reset piece, a 8-first rotating shaft, a 9-pull hook, a 901-second groove, a 10-first limiting block, a 11-first sliding guide strip, a 12-second rotating shaft, a 13-guide block, a 1301-cambered surface, a 14-limiting clamp, a 15-second limiting block, a 16-product and a 17-second sliding guide strip.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1-8, in one embodiment, an injection mold of a rotary handle core pulling structure is provided, which includes an a board 1 and a B board 2, a core pulling structure is provided between the a board 1 and the B board 2, the core pulling structure includes an inclined guide pillar 3, a first slider 4, a second slider 5 and a third slider 6, the first slider 4 is connected to the second slider 5 through a fastener, an elastic reset piece 7 is provided between the first slider 4 and the second slider 5, a first rotating shaft 8 is provided on the third slider 6, a pull hook 9 is provided on the first slider 4 and is connected to the first rotating shaft 8 in a matching manner, an inclined guide groove 401 is provided on the first slider 4 and is matched to the inclined guide pillar 3, when the mold is opened, under the pushing of the inclined guide pillar 3 and the elastic reset piece 7, the first slider 4 moves backwards and the pull hook 9 drives the first rotating shaft 8 on the third slider 6, so that the third slider 6 rotates along the center of an arc of a product 16, a longitudinal reverse buckle of the product 16 is released to complete a first core pulling, and after the first slider 4 moves to a set distance, the second slider 5 and the second slider 16 is released.

Specifically, the first slider of the handle part structure is opened to three sliders, and core pulling is performed twice. Under the promotion of oblique guide pillar 3 and elasticity reset piece 7 during the die sinking, first slider 4 moves backward and draws and collude 9 and drive first pivot 8 on the third slider 6, makes third slider 6 arrive along the centre of a circle of product 16 circular arc, deviates from the vertical back-off of product 16 and loosens the core in order to accomplish the first time, after first slider 4 removed to the settlement distance, drives second slider 5 and third slider 6 motion, loosens the horizontal back-off of product 16 in order to accomplish the second time and looses the core until.

Further, as shown in fig. 5, a first limiting block 10 is arranged on the B plate 2, a first guide slide bar 11 is arranged at the bottom of the second slide block 5, and when the mold is opened, the second slide block 5 is kept still under the action of the first guide slide bar 11 and the first limiting block 10.

Specifically, after the first slider 4 moves to a set distance, the first guide sliding strip 11 leaves the first limiting block 10, and the first slider 4 drives the second slider 5 and the third slider 6 to move together under the action of the fastener, so that the overall core pulling process is completed.

It should be noted that the fastener is a limit screw.

Further, referring to fig. 1 and 2, the core pulling structure further includes a second rotating shaft 12, and the second rotating shaft 12 is connected to the third slider 6 after passing through the second slider 5.

Further, the axis of the second rotating shaft 12 is coincident with the center of the arc of the product 16.

Further, as shown in fig. 2 and 8, a plurality of guide blocks 13 are uniformly distributed at the bottom of the second sliding block 5, an arc surface 1301 is arranged at the top of each guide block 13, a first groove 601 which is in fit connection with the arc surface 1301 of each guide block 13 is arranged on the third sliding block 6, and the third sliding block 6 can rotate and be positioned along the guide blocks 13.

Further, as shown in fig. 2, the axis of the arc surface 1301 is concentric with the axis of the second rotating shaft 12.

Further, as shown in fig. 6, a limiting clamp 14 is arranged on the B plate 2, and the limiting clamp 14 is connected with the bottom of the second sliding block 5 in a matching manner. So as to prevent the inclined guide post 3 from being not aligned with the inclined guide groove 401 of the first slide block 4 during mold closing and crushing the mold.

Further, as shown in fig. 1 and 4, a second stopper 15 for positioning the third slider 6 during assembly is disposed in the first slider 4.

It should be noted that the second limiting block 15 is added in the first slider 4 to position the third slider 6 during die loading, and only to assist the workpiece, after the die loading is completed, the third slider 6 is rotated by 180 degrees and fixed on the first slider 4.

Further, referring to fig. 7, a second groove 901 is formed on the pull hook 9, and the second groove 901 is engaged with the first rotating shaft 8, and the second groove 901 is in an inverted U shape.

Further, as shown in fig. 2, a second guide slide 17 is provided between the first slider 4 and the second slider 5.

Further, as shown in fig. 4, a third groove 402 is formed in the first slider 4, the elastic reset piece 7 is partially installed in the third groove 402, and one end of the elastic reset piece 7 abuts against the side wall of the second slider 5.

The foregoing is a preferred embodiment of the present invention showing and describing the basic principles, main features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration only, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides an injection mold of rotary type handle structure of loosing core, includes A board (1) and B board (2), its characterized in that: a core-pulling structure is arranged between the A plate (1) and the B plate (2), the core pulling structure comprises an inclined guide post (3), a first sliding block (4), a second sliding block (5) and a third sliding block (6), the first sliding block (4) is connected with the second sliding block (5) through a fastener, an elastic reset piece (7) is arranged between the first sliding block (4) and the second sliding block (5), a first rotating shaft (8) is arranged on the third sliding block (6), a pull hook (9) which is matched and connected with the first rotating shaft (8) is arranged on the first sliding block (4), an inclined guide groove (401) matched with the inclined guide post (3) is arranged on the first sliding block (4), when the mould is opened, under the push of the inclined guide post (3) and the elastic reset piece (7), the first sliding block (4) moves backwards, the pulling hook (9) drives the first rotating shaft (8) on the third sliding block (6) to enable the third sliding block (6) to rotate along the circle center of the arc of the product (16) and to be separated from the longitudinal reverse buckle of the product (16) to finish the first core pulling, and when the first sliding block (4) moves to a set distance, the second sliding block (5) and the third sliding block (6) are driven to move, and the transverse reverse buckle of the product (16) is released to complete secondary core pulling.

2. The injection mold of the rotary handle core-pulling structure according to claim 1, characterized in that: be equipped with first stopper (10) on B board (2), second slider (5) bottom is equipped with first draw runner (11), during the die sinking, second slider (5) are passed through first draw runner (11) with keep still under the effect of first stopper (10).

3. The injection mold of the rotary handle core pulling structure according to claim 1, characterized in that: the core pulling structure further comprises a second rotating shaft (12), and the second rotating shaft (12) penetrates through the second sliding block (5) and then is connected with the third sliding block (6).

4. The injection mold of the rotary handle core-pulling structure according to claim 3, characterized in that: the axis of the second rotating shaft (12) is consistent with the circular arc center of the product (16).

5. The injection mold of the rotary handle core-pulling structure according to claim 4, characterized in that: second slider (5) bottom evenly distributed is equipped with a plurality of guide block (13), and is a plurality of guide block (13) top is equipped with cambered surface (1301), be equipped with on third slider (6) with cambered surface (1301) cooperation of guide block (13) are connected first recess (601), third slider (6) can be followed guide block (13) rotate and location.

6. The injection mold of the rotary handle core pulling structure according to claim 5, characterized in that: the axis of the cambered surface (1301) is concentric with the axis of the second rotating shaft (12).

7. The injection mold of the rotary handle core-pulling structure according to claim 1, characterized in that: and a limiting clamp (14) is arranged on the B plate (2), and the limiting clamp (14) is connected with the bottom of the second sliding block (5) in a matching manner.

8. The injection mold of the rotary handle core-pulling structure according to claim 1, characterized in that: and a second limiting block (15) used for positioning the third sliding block (6) during assembly is arranged in the first sliding block (4).

9. The injection mold of the rotary handle core-pulling structure according to claim 1, characterized in that: the pull hook (9) is provided with a second groove (901) matched with the first rotating shaft (8), and the second groove (901) is in an inverted U shape.

10. The injection mold of the rotary handle core-pulling structure according to claim 1, characterized in that: a second guide sliding strip (17) is arranged between the first sliding block (4) and the second sliding block (5).

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