CN214082555U

CN214082555U - Prevent mould structure that inserts dropped

Info

Publication number: CN214082555U
Application number: CN202022412746.7U
Authority: CN
Inventors: 林强; 冯建毅; 屈绍宇
Original assignee: Shanghai Lingtian Precision Molding Co ltd
Current assignee: Shanghai Lingtian Precision Molding Co ltd
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-08-31
Anticipated expiration: 2030-10-26

Abstract

A die structure for preventing an insert from falling comprises a side sliding block, wherein one end of the side sliding block is fixedly connected with a side core, the insert is placed on the outer wall of the side core, at least two fixing through holes are formed in the side core, fixing parts are arranged in the fixing through holes and comprise a headless screw, a built-in spring and a bead block, the bead block comprises a boss and a bead head at the tail end of the boss, and two ends of the built-in spring are respectively abutted against the headless screw and the boss; and the bead head extends out of the fixing through hole and abuts against the insert under the pressure of the built-in spring along with the rotation of the headless screw into the fixing through hole. Through designing into neotype mounting with the combination of headless screw, built-in spring and ripples pearl piece, and the fixed through hole who designs and the mounting matching on the side core, utilize built-in spring to exert inserts pressure to the pressure of ripples pearl piece and realize better fixing, reduce the risk that the inserts dropped.

Description

Prevent mould structure that inserts dropped

Technical Field

The utility model belongs to the technical field of the injection mold technique and specifically relates to a prevent mould structure that inserts dropped.

Background

There is a product in the mold industry, which needs to install an insert in a mold and to perform injection molding, in which case the insert needs to be fixed in the mold. Generally, the common beads are adopted in the prior art and used for providing insert pressure for the insert to fix the insert in a mold for injection molding, but the conventional beads are used for providing weaker pressure for the insert, so that the stability of the fixed insert is poorer, the insert is likely to slide and collide with the mold, especially when the insert is installed on a side slide block, the insert needs to be placed in an inclined mode, the falling risk of the insert placed in the mode is extremely high, and finally, production stop or even slide block parts are scrapped.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the inserts dropped when the product containing the inserts was moulded plastics, the utility model provides a prevent mould structure that inserts dropped.

The utility model provides a technical scheme as follows: a mould structure for preventing an insert from falling comprises a panel, a front template, a rear template, an ejector pin plate, an ejector pin bottom plate and a bottom plate which are arranged in sequence from top to bottom, a front mold core is embedded on the front template, a rear mold core is embedded on the rear template, a lateral sliding block structure is arranged between the front template and the rear template, the lateral sliding block structure comprises a sliding block base, the sliding block base is fixed on the rear template, the upper surface of the sliding block base is an inclined plane, a side sliding block is arranged on the inclined plane, one end of the side sliding block is fixedly connected with a side mold core, one end of the side mold core is abutted to the rear mold core, an insert is placed on the outer wall of the side mold core, the side core is provided with at least two fixing through holes which are parallel to each other, a fixing piece is arranged in the fixing through hole and fixes the insert on the side mold core;

the fixing piece comprises a headless screw, an internal spring and a bead block, the bead block comprises a boss and a bead head arranged at the tail end of the boss, the internal spring is placed between the headless screw and the bead block, and two ends of the internal spring are respectively abutted to the headless screw and the boss; the side core is provided with a thread groove matched with the headless screw on the inner side wall in contact with the headless screw, the headless screw rotates along the thread groove to enter the fixing through hole, and the bead head extends out of the fixing through hole to abut against the insert under the pressure of the built-in spring.

Preferably, the diameter of one end of the fixing through hole, where the headless screw is placed, is larger than the diameter of one end of the fixing through hole, where the bead head is placed.

Preferably, the center line of the side core and the center line of the fixing through hole intersect perpendicularly, and when two fixing through holes are formed in the side core, the two fixing through holes are centrosymmetric.

Preferably, one end of the side sliding block, which is far away from the side core, is connected with a limiting device for limiting the sliding distance of the side sliding block, the limiting device comprises a baffle, a screw and a first spring, a wear-resisting plate is fixed on the outer side of the sliding block base, the baffle is fixedly connected to the top end of the wear-resisting plate, a central through hole is formed in the baffle, one end of the screw penetrates through the central through hole and is connected to the side sliding block, the other end of the screw is sleeved with the first spring, and the width of the first spring is larger than the aperture of the central through hole.

Preferably, an opening direction of the central through hole coincides with an inclination direction of the inclined surface.

Preferably, a positioning device is fixed on the slider base and comprises a positioning block and a positioning spring, the top end of the positioning block is slidably arranged on the inclined surface in a penetrating manner, the positioning spring is fixedly connected to the bottom of the positioning block, and the bottom of the side slider is provided with the positioning groove matched with the top end of the positioning block.

Preferably, the side sliding block is provided with a guide hole communicating the upper side surface and the lower side surface of the side sliding block, the front template is fixedly connected with an inclined guide post, the inclined guide post is arranged in the guide hole in a penetrating manner, a second groove is formed in the position, corresponding to the guide hole, of the rear template, and the bottom end of the inclined guide post penetrates through the guide hole to reach the inside of the second groove.

To sum up, the utility model discloses following effect has: to the mould structure of slider loose core, through the design to the mounting that is used for fixed inserts, make up no first screw, built-in spring and ripples pearl piece and use to neotype mounting, the fixing hole who is used for placing the mounting on the offside core designs, thereby utilizes built-in spring to exert the bigger pressure of inserts to the pressure of ripples pearl piece and realize better fixing, this greatly reduced the risk that the in-process inserts of moulding plastics dropped.

Drawings

FIG. 1 is a structural cross-sectional view of a side view of the present invention;

FIG. 2 is an enlarged view of position A of FIG. 1;

FIG. 3 is a front view of the middle slide block of the present invention;

FIG. 4 is a structural diagram of the fixing member of the present invention;

FIG. 5 is a cross-sectional view of a side core of the present invention;

fig. 6 is an enlarged view of the position B in fig. 2.

Wherein: 1. a panel; 2. a front template; 3. a rear template; 4. an ejector plate; 5. a thimble base plate; 6. a base plate; 7. a front mold core; 8. a rear mold core; 9. producing a product; 10. an insert; 11. a slider base; 12. an inclined surface; 13. a side slider; 14. pressing a plate; 15. a side core; 16. a fixing member; 17. headless screws; 18. a built-in spring; 19. a bead block; 20. a bead head; 21. a boss; 22. a first through hole; 22', a second through hole; 23. a first large hole; 23', a second large hole; 24. a first aperture; 24', a second orifice; 25. a baffle plate; 26. a screw; 27. a first spring; 28. a wear plate; 29. a central through hole; 30. positioning blocks; 31. a positioning spring; 32. a positioning groove; 33. a guide hole; 34. an inclined guide post; 35. a second groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, a mold structure for preventing an insert from falling comprises a panel 1, a front mold plate 2, a rear mold plate 3, an ejector plate 4, an ejector base plate 5 and a base plate 6 which are sequentially arranged from top to bottom, wherein a front mold core 7 is embedded in the front mold plate 2, a rear mold core 8 is embedded in the rear mold plate 3, a lateral sliding block structure is arranged between the front mold plate 2 and the rear mold plate 3, the lateral sliding block structure, the front mold core 7 and the rear mold core 8 form a product cavity formed by a product 9, and an insert 10 is embedded in one side of the product 9.

As shown in fig. 2 and 3, the lateral sliding block structure includes a sliding block base 11, the sliding block base 11 is fixed on the back mold plate 3, the upper surface of the sliding block base 11 is an inclined surface 12 with a certain angle, a side sliding block 13 is placed on the inclined surface 12, pressing plates 14 are fixed on two sides of the side sliding block 13, the pressing plates 14 are fixed on the sliding block base 11, a guiding groove (not marked in the drawing due to the view angle limitation) is formed between the pressing plates 14, and the side sliding block 13 slides along the guiding groove.

One end of the side sliding block 13 close to the product 9 is fixedly connected with a side mold core 15, when the mold is closed, along with the sliding of the side sliding block 13 towards the product 9, one end of the side mold core 15 abuts against the rear mold core 8, an insert 10 which needs to be injected into the product 9 is sleeved on the outer wall of the side mold core 15, in this embodiment, two fixing through holes with the same shape are formed in the side mold core 15 at the position of the insert 10, the fixing holes are a first through hole 22 and a second through hole 22 ', and fixing pieces 16 (shown in fig. 4) used for fixing the insert 10 in the fixing through holes are installed in the first through hole 22 and the second through hole 22'. In this embodiment, the center lines of the first through hole 22 and the second through hole 22 'are perpendicular to the center line of the side core 15, and the first through hole 22 and the second through hole 22' are parallel to each other and are centrosymmetric. And when the mold is opened, the side mold core 15 finishes side slide block core pulling to form a product 9 with the insert 10.

As shown in fig. 4 and 5, the fixing member 16 includes a headless screw 17, an internal spring 18 and a bead block 19, the bead block 19 includes a boss 21 and a bead head 20 provided at a distal end of the boss 21, the internal spring 18 is disposed between the headless screw 17 and the bead block 19, and both ends of the internal spring 18 are respectively abutted against the headless screw 17 and the boss 21.

In addition, the aperture sizes of the two ends of the first through hole 22 and the second through hole 22 ' are also different, wherein one end for placing the headless screw 17 is a first big hole 23 and a second big hole 23 ', and the small hole for placing one end of the bead head 20 is a first small hole 24 and a second small hole 24 '. The inner side wall of the side core 15, which is in contact with the headless screw 17, is provided with a thread groove (view angle limitation is not marked) matched with the headless screw 17, when the fixing piece 16 is used, the wave ball block 19, the built-in spring 18 and the headless screw 17 are sequentially placed into the first through hole 22 and the second through hole 22 ', the built-in spring 18 is compressed along with the rotation of the headless screw 17, and the wave ball head 20 extends out of the first small hole 24 and the second small hole 24' and is abutted to the insert 10 on the outer wall of the side core 15. Under the action of the headless screw 17 and the internal spring 18, the fixing piece 16 is fastened in the first through hole 22 and the second through hole 22', while the bead head 20 gives the insert 10 a greater pressure under the action of the pressure of the internal spring 18, thus better fixing the insert 10. Moreover, because the first small hole 24 and the second small hole 24' are centrosymmetric, the pressure of the fixing insert 10 by the bead heads 20 on both sides is more uniform, thereby keeping the stability of the insert 10.

As shown in fig. 6, a limiting device for limiting the sliding distance of the side slider 13 is connected to an end of the side slider 13 away from the product 9, the limiting device includes a blocking plate 25, a screw 26 and a first spring 27, a wear plate 28 is fixed to an outer side of the slider base 11, and the blocking plate 25 is fixedly connected to a top end of the wear plate 28. The baffle 25 is provided with a central through hole 29, and the hole opening direction of the central through hole is consistent with the inclination direction of the inclined surface 12. One end of the screw 26 penetrates through the central through hole 29 to be connected to the side sliding block 13, the other end of the screw 26 is sleeved with a first spring 27, wherein one end of the screw 26, sleeved with the first spring 27, cannot penetrate through the central through hole 29 due to the fact that the width of the first spring 27 is larger than the aperture of the central through hole 29, and therefore the sliding distance of the side sliding block 13 is limited.

In order to ensure that the side slide block 13 can accurately return when the mold is closed, a positioning device is further fixed on the slide block base 11, and the positioning device comprises a positioning block 30 and a positioning spring 31. The top end of the positioning block 30 is slidably inserted into the inclined surface 12 of the side sliding block 13, the positioning spring 31 is fixedly connected to the bottom of the positioning block 30, and the bottom of the side sliding block 13 is provided with a positioning groove 32 matched with the top end of the positioning block 30. When the mold is opened, the side sliding block 13 slides outwards to the positioning device, the positioning spring 31 is compressed, and the positioning block 30 is inserted into the positioning groove 32, so that the positioning of the side sliding block 13 is completed.

As shown in fig. 2, the side sliding block 13 is provided with a guide hole 33 communicating the upper side surface and the lower side surface, the front mold plate 2 is fixedly connected with an inclined guide post 34, the inclined guide post 34 is inserted into the guide hole 33, and a second groove 35 is formed in the rear mold plate 3 at a position corresponding to the guide hole 33. When the side slide 13 slides towards the product 9, the bottom end of the inclined guide post 34 passes through the guide hole 33 to the second groove 35 on the rear mold plate 3, and at this time, the side slide structure is also completed, and the mold closing process is finished.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A mold structure for preventing inserts from falling comprises a panel, a front template, a rear template, an ejector plate, an ejector base plate and a base plate which are sequentially arranged from top to bottom, wherein a front mold core is embedded in the front template, a rear mold core is embedded in the rear template, it is characterized in that a lateral sliding block structure is arranged between the front template and the rear template, the lateral sliding block structure comprises a sliding block base, the sliding block base is fixed on the rear template, the upper surface of the sliding block base is an inclined surface, a side sliding block is arranged on the inclined surface, one end of the side sliding block is fixedly connected with a side mold core, one end of the side mold core is abutted to the rear mold core, the outer wall of the side mold core is provided with an insert, the side mold core is provided with at least two fixing through holes which are parallel to each other, a fixing piece is arranged in the fixing through hole and fixes the insert on the side mold core;

2. The insert drop prevention mold structure according to claim 1, wherein the diameter of the fixing through hole for placing the headless screw end is larger than the diameter for placing the bead head end.

3. The insert drop prevention mold structure according to claim 2, wherein a center line of the side core and a center line of the fixing through hole perpendicularly intersect, and when two fixing through holes are formed in the side core, the two fixing through holes are formed in a central symmetry.

4. The mold structure for preventing the insert from falling off as claimed in claim 3, wherein a limiting device for limiting the sliding distance of the side slide is connected to one end of the side slide, which is far away from the side core, the limiting device comprises a baffle plate, a screw and a first spring, a wear plate is fixed to the outer side of the slide base, the baffle plate is fixedly connected to the top end of the wear plate, a central through hole is formed in the baffle plate, one end of the screw passes through the central through hole to be connected to the side slide, the other end of the screw is sleeved with the first spring, and the width of the first spring is larger than the aperture of the central through hole.

5. The insert drop prevention mold structure according to claim 4, wherein an opening direction of the central through hole and an inclination direction of the inclined surface coincide.

6. The mold structure for preventing the insert from falling down as claimed in claim 1, wherein a positioning device is fixed on the base of the slide block, the positioning device comprises a positioning block and a positioning spring, the top end of the positioning block is slidably inserted into the inclined surface, the positioning spring is fixedly connected to the bottom of the positioning block, and a positioning groove matched with the top end of the positioning block is formed in the bottom of the side slide block.

7. The mold structure of claim 6, wherein the side sliding blocks are provided with guiding holes for communicating the upper side and the lower side of the side sliding blocks, the front mold plate is fixedly connected with an inclined guiding post, the inclined guiding post is inserted into the guiding hole, the rear mold plate is provided with a second groove corresponding to the guiding hole, and the bottom end of the inclined guiding post passes through the guiding hole and enters the second groove.