CN220826250U

CN220826250U - Injection mold capable of achieving secondary encapsulation

Info

Publication number: CN220826250U
Application number: CN202322375831.4U
Authority: CN
Inventors: 党修魁; 王鹏
Original assignee: Qingdao Wenda Tongze Electromechanical Co ltd
Current assignee: Qingdao Wenda Tongze Electromechanical Co ltd
Priority date: 2023-09-01
Filing date: 2023-09-01
Publication date: 2024-04-23
Anticipated expiration: 2033-09-01

Abstract

The utility model relates to the technical field of injection molding and discloses a secondary rubber coating injection mold which comprises a fixed mold panel, wherein a fixed mold plate is fixedly arranged on the lower end face of the fixed mold panel, an upper heat insulation plate is fixedly connected to the upper end face of the fixed mold panel, a movable mold plate is movably connected to one side, far away from the fixed mold panel, of the fixed mold plate, a supporting component is fixedly arranged on the lower end face of the movable mold plate, a movable mold panel is fixedly connected to one end, far away from the movable mold plate, of the supporting component, and a thimble panel is movably sleeved in the middle of the supporting component. According to the utility model, through the cooperation among the inclined guide post, the first sliding block, the insert of the front die core and the insert of the rear die core, the limiting effect on the product is realized, the problem of product position deviation is effectively solved, the limiting mode of the sliding block and the insert on the primary molded product is adopted, the accuracy of the positioning position of the product before encapsulation is increased, the stability of the encapsulation injection molding process is enhanced, and the quality of the encapsulated product is improved.

Description

Injection mold capable of achieving secondary encapsulation

Technical Field

The utility model relates to the technical field of injection molding, in particular to an injection mold capable of being subjected to secondary encapsulation.

Background

The secondary injection molding is a special plastic molding process, also called sleeve beer or rubber coating, which is similar to a double-color molding process, but has a larger difference from the double-color molding process, and is a process of taking out a molded part after molding a certain plastic raw material in a primary plastic mold, putting the molded part into the secondary molding mold, and injecting the same or another plastic material into the secondary molding mold again to mold the molded part, wherein more complex process is multiple times, so that the appearance and process of the plastic product meet the required requirements, namely the secondary injection molding, the secondary injection molding can fully soft feel the surface of the product and can increase the functionality and the added value of the product, the secondary injection molding technology is used for creating a soft feel surface, and the technology can be utilized to increase the functions of the product, such as noise reduction, shock absorption, water prevention, anti-collision and added value, and the application in a protective shell of a mobile phone/a mobile phone is wider.

However, in the processing of the existing secondary injection molding, because the surface of the die is smooth, the primary molded product can move in position on the smooth die, and the corresponding fixing and positioning device for the primary molded product is not arranged on the die, meanwhile, the primary molded product is loosened, the inaccuracy of the placement position of the primary molded product is caused at the moment, and the deviation of the product position can cause the failure of secondary encapsulation injection molding, so that the increase of the quantity of defective products in the injection molding processing is increased, and the waste of raw materials is also caused.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a secondary encapsulation injection mold which has the advantages of reinforcing the stability of a primary molding product after processing, improving the secondary encapsulation injection molding product and reducing the quantity of defective products in the injection molding processing process, and solves the problems in the prior art.

The utility model provides the following technical scheme: the utility model provides a but secondary rubber coating injection mold, includes the cover half panel, the lower terminal surface fixed mounting of cover half panel has the cover half board, the up end fixedly connected with heat insulating board of cover half panel, one side swing joint of cover half panel has the movable mould board, the lower terminal surface fixed mounting of movable mould board has a supporting component, the one end fixedly connected with movable mould panel of movable mould board is kept away from to the supporting component, the middle part movable sleeve of supporting component has the thimble panel, the lower terminal surface fixedly connected with thimble bottom plate of thimble panel, and the one side that the thimble bottom plate kept away from the thimble panel is connected with the up end contact of movable mould panel, the up end evenly distributed of thimble panel has the thimble, and the outer wall activity cup joints with the inner wall of movable mould board, the outer wall activity of thimble has cup jointed the spring, the inner wall fixed sleeve of cover half panel has the front mould benevolence, the lower terminal surface fixedly connected with fixed insert of front mould benevolence, the inner wall fixedly connected with protrusion of front mould benevolence lower terminal surface, the hole pattern is seted up to the lower terminal surface of front mould benevolence, the inner wall fixed mounting of movable mould board has the thimble panel, the rear mould benevolence is located the second die benevolence, the inside is located the fixed mould benevolence is located the fixed die benevolence of two side and is located the fixed mould benevolence, the front end face of the slider is located the second die core, the fixed part is located the fixed carrier, the front mould benevolence is located the second die core is fixed with the slider, the front end face positioning piece is located the second side.

Preferably, the inner side fixed mounting of back mould benevolence has the antifriction plate, and the up end of antifriction plate all with the lower terminal surface fixed connection of slider and slider No. two, the left and right sides of slider and slider No. two is all fixed mounting has the brass water injection well choke, one side fixed mounting that the rear mould benevolence was kept away from to the antifriction plate has a layering, and the up end and the lower extreme fixed connection of polygon mold insert of layering, the front and back both sides of back mould benevolence all fixedly connected with layering No. two, and the outside fixed connection of the inboard and the antifriction plate of layering No. two.

Preferably, the inner wall thread of the fixed template is sleeved with a fastening screw, the outer wall of the fastening screw is sleeved with the inner wall thread of the inclined guide post, and a locking module is arranged at the joint of the fixed template and the movable template.

Preferably, the support assembly comprises a first die leg and a second die leg, the upper ends of the first die leg and the second die leg are fixedly connected with the lower end face of the movable die plate, the lower ends of the first die leg and the second die leg are fixedly connected with the upper end face of the movable die plate, the first die leg is arranged on one side of the thimble plate, and the second die leg is arranged on the other side of the thimble plate.

Preferably, the lower end face of the movable mould panel is fixedly provided with a lower heat insulation plate, the lower end face of the lower heat insulation plate is externally connected with an electric push rod, and an output shaft of the electric push rod penetrates through the movable mould panel and the inner part of the lower heat insulation plate and is fixedly connected with the lower end face of the thimble bottom plate.

Preferably, the inner wall threads of the wear-resisting plate are sleeved with connecting screws positioned on the left side and the right side of the first sliding block, and the outer wall of the lower end of the connecting screw is sleeved with the inner wall threads of the movable mold plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. According to the utility model, through the cooperation among the inclined guide post, the first sliding block, the insert of the front die core and the insert of the rear die core, the limiting effect on the product is realized, the problem of product position deviation is effectively solved, the limiting mode of the sliding block and the insert on the primary molded product is adopted, the accuracy of the positioning position of the product before encapsulation is increased, the stability of the encapsulation injection molding process is enhanced, and the quality of the encapsulated product is improved.

2. According to the utility model, through the cooperation among the ejector pins, the lower heat insulation plate, the rear mold core and the movable mold core, the ejector pin is arranged, so that the ejection effect of the encapsulated product is realized, the problem of material taking after encapsulation of the product is effectively solved, the ejection mode of ejecting the encapsulated product from the movable mold core is adopted, the discharging step of the encapsulated product is simplified, and meanwhile, the convenience of discharging of the encapsulated product is also improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a bottom view of the front mold insert of the present utility model;

FIG. 3 is a top view of a rear mold insert according to the present utility model;

fig. 4 is a top view of a first slider of the present utility model.

In the figure: 1. a fixed mold panel; 2. a stationary mold plate; 3. a movable template; 4. a support assembly; 401. a first mould leg; 402. a second mould leg; 5. a thimble panel; 6. a thimble bottom plate; 7. a movable mold panel; 8. a lock module; 9. a heat insulation plate is arranged; 10. a lower heat insulation plate; 11. a product placing groove before encapsulation; 20. a front mold core; 21. fixing the insert; 22. protruding the insert; 23. a hole type insert; 30. a rear mold core; 31. a polygonal insert; 32. positioning the insert; 33. a limiting insert; 70. a thimble; 40. a first sliding block; 41. a second slide block; 42. a first pressing bar; 43. a second pressing bar; 44. a wear plate; 45. oblique guide posts; 100. a connecting screw; 101. brass water nozzles; 102. and (5) fastening a screw.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 and 3, a secondary encapsulation injection mold comprises a fixed mold panel 1, wherein the fixed mold panel 1 is arranged to connect a fixed mold plate 2 with an upper heat insulation plate 9, the fixed mold plate 2 is fixedly arranged on the lower end surface of the fixed mold panel 1, a platform and a space are provided for installing a front mold core 20, a fixed insert 21, a protruding insert 22 and a hole type insert 23 in the fixed mold plate 2, the upper heat insulation plate 9 is fixedly connected with the upper end surface of the fixed mold panel 1, the upper heat insulation plate 9 is arranged to avoid the injury of high-temperature stamping staff generated during injection molding, a movable mold plate 3 is movably connected on one side of the fixed mold plate 2 away from the fixed mold panel 1, the movable mold plate 3 is arranged to provide a platform and a space for installing a rear mold core 30, a polygonal insert 31, a positioning insert 32 and a limiting insert 33, a support assembly 4 is fixedly arranged on the lower end surface of the movable mold plate 3, the support component 4 is used for connecting the movable mould plate 3 and the movable mould plate 7, one end of the support component 4, which is far away from the movable mould plate 3, is fixedly connected with the movable mould plate 7, the middle part of the support component 4 is movably sleeved with the thimble panel 5, the thimble panel 5 is arranged to provide support and a platform for the installation of the thimble 70, the lower end surface of the thimble panel 5 is fixedly connected with the thimble bottom plate 6, the thimble bottom plate 6 is arranged to provide a platform for the installation of the thimble panel 5, one side of the thimble bottom plate 6, which is far away from the thimble panel 5, is in contact connection with the upper end surface of the movable mould plate 7, the thimble 70 is uniformly distributed on the upper end surface of the thimble panel 5, the movement of the thimble 70 can eject the encapsulated product from the movable mould plate 3, thereby facilitating the ejection of the product, saving the material of workers after the molding, the outer wall of the thimble 70 is movably sleeved with the inner wall of the movable mould plate 3, the outer wall of the thimble 70 is movably sleeved with a spring, the arrangement of the springs plays a role in connecting the movable mold plate 3 with the thimble panel 5, the inner wall of the fixed mold plate 2 is fixedly sleeved with the front mold core 20, the lower end face of the front mold core 20 is fixedly connected with the fixed insert 21, the arrangement of the fixed insert 21, the protruding insert 22 and the hole type insert 23 is matched with the rear mold core 30, the polygonal insert 31, the positioning insert 32 and the limiting insert 33, the positioning of products in the injection molding and encapsulation process is achieved, the displacement of the products is prevented, the protruding insert 22 is fixedly arranged on the inner wall of the lower end face of the front mold core 20, the hole type insert 23 is arranged on the lower end face of the front mold core 20, the rear mold core 30 is fixedly arranged on the inner wall of the movable mold plate 3, the middle part of the upper end face of the rear mold core 30 is fixedly connected with the polygonal insert 31, the positioning inserts 32 positioned on the front side and the rear side of the polygonal insert 31 are fixedly connected with the middle part of the positioning insert 32, the arrangement of the rear mold insert 30, the polygonal insert 31, the positioning insert 32 and the limiting insert 33 on the movable mold plate 3 limits the position of a product on the movable mold plate 3, increases the accuracy of the positioning position of the product before encapsulation, ensures stable production flow of the whole process, improves the consistency of the product, fixedly installs the first slide block 40 on the inner side of the rear mold insert 30, fixedly installs the second slide block 41 positioned behind the first slide block 40 on the upper end surface of the rear mold insert 30, movably sleeves the inner walls of the first slide block 40 and the second slide block 41 with the inclined guide columns 45, ensures the connection of the movable mold plate 3 and the fixed mold plate 2, limits the positioning of the movable mold plate 3 and the fixed mold plate 2 after the mold closing, improves the stability of the movable mold plate 3 and the fixed mold plate 2 after the mold closing, and ensures that the middle parts of the first slide block 40 and the second slide block 41 are provided with the product placing groove 11 before encapsulation, the provision of the product placement tank 11 before encapsulation provides space for the storage of the product.

The inside fixed mounting of back mould benevolence 30 has antifriction plate 44, the installation of antifriction plate 44 provides support and platform for the installation of slider 40 and slider 41 No. one, and the up end of antifriction plate 44 all with slider 40 and slider 41 No. two's lower terminal surface fixed connection, slider 40 and slider 41 No. one's left and right sides all fixed mounting have brass water injection well choke 101, one side fixed mounting that the antifriction plate 44 kept away from back mould benevolence 30 has a layering 42 No. one, the setting of layering 42 plays the connection to slider 40 and slider 41 and back mould benevolence 30 No. one, and the up end of layering 42 and polygonal mold insert 31's lower extreme fixed connection, the front and back both sides of back mould benevolence 30 all fixed mould layering 43, no. two layering 43's setting play the connection to slider 40 and slider 41 and back mould benevolence 30 of both sides around respectively, and the inboard of layering 43 and antifriction plate 44, the setting of antifriction plate 44 plays the connection to slider 40 and slider 41 and board 2.

The inner wall screw thread of fixed die plate 2 has cup jointed fastening screw 102, and the setting of fastening screw 102 plays to the connection of oblique guide pillar 45 with fixed die plate 2, and the outer wall of fastening screw 102 cup joints with the inner wall screw thread of oblique guide pillar 45, and lock module 8 is installed to the junction of fixed die plate 2 and movable die plate 3, and the setting of lock module 8 plays spacing to after fixed die plate 2 and the movable die plate 3 compound die.

Referring to fig. 2 and 4, the supporting component 4 includes a first mold leg 401, a second mold leg 402, the upper ends of the first mold leg 401 and the second mold leg 402 are fixedly connected with the lower end surface of the movable mold plate 3, the first mold leg 401 and the second mold leg 402 are arranged to connect the movable mold plate 3 with the movable mold plate 7, at this time, a space between the movable mold plate 3 and the movable mold plate 7 can provide for the movement of the ejector pin panel 5 and the ejector pin bottom plate 6, so that the ejector pin 70 is convenient for ejecting a product, the lower ends of the first mold leg 401 and the second mold leg 402 are fixedly connected with the upper end surface of the movable mold panel 7, the first mold leg 401 is mounted on one side of the ejector pin panel 5, the second mold leg 402 is mounted on the other side of the ejector pin panel 5, and a gap between the first mold leg 401 and the second mold leg 402 can provide for the movement of the ejector pin panel 5 and the ejector pin bottom plate 6.

The lower end face of the movable mould panel 7 is fixedly provided with a lower heat insulation plate 10, the lower heat insulation plate 10 is provided with a support and a platform for mounting an electric push rod, the lower end face of the lower heat insulation plate 10 is externally connected with the electric push rod, and an output shaft of the electric push rod penetrates through the movable mould panel 7 and the inside of the lower heat insulation plate 10 and is fixedly connected with the lower end face of the thimble bottom plate 6, and the telescopic movement of the output shaft of the electric push rod is utilized, so that the thimble 70 can eject a product.

The inner wall screw thread of the wear-resisting plate 44 is sleeved with connecting screws 100 positioned on the left side and the right side of the first sliding block 40, the connecting screws 100 are arranged to connect the movable template 3 with the wear-resisting plate 44, and the outer wall of the lower end of the connecting screws 100 is sleeved with the inner wall screw thread of the movable template 3.

Working principle: when the injection molding machine is used, firstly, when the mold is in an open mold state, a product before encapsulation is placed in the product placing groove 11 before encapsulation and is positioned on the positioning insert 32, the positioning insert 32 and the limiting insert 33 are utilized for first positioning, the inclined guide pillar 45 is fixed on the fixed mold plate 2 through the fastening screw 102, then, the injection molding machine drives the lower mold to be assembled, the inclined guide pillar 45 is inserted into guide pillar holes of the first slide block 40 and the second slide block 41 to drive the first slide block 40 and the second slide block 41 to move inwards, meanwhile, the fixing insert 21, the protruding insert 22 and the like also move relative to the rear mold, so that the ejector pin panel 5 can realize second positioning, then, the injection molding machine injects raw materials, performs fixed molding after pressure maintaining and cooling, then the mold is opened, the inclined guide pillar 45 drives the first slide block 40 and the second slide block 41 to move outwards in the mold opening process, at the moment, the two sides of the product are separated, finally, the inner output shaft of the electric push rod is utilized to stretch out and draw the inner part of the movable mold panel 7, the ejector pin panel 5 and the bottom plate 6 are driven to move inwards, the ejector pin 70 is driven to move upwards through the inner part of the outer push rod 7, and the ejector pin 70 is pushed out of the inner part of the ejector pin after the ejector pin is positioned, and the ejector pin is separated from the inner part of the ejector pin after the ejector pin is positioned, and the ejector pin is positioned from the ejector pin after the ejector pin is positioned.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Meanwhile, in the drawings of the present utility model, the filling pattern is only for distinguishing the layers, and is not limited in any way.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a but secondary rubber coating injection mold, includes cover half panel (1), its characterized in that: the lower end face of the fixed die panel (1) is fixedly provided with a fixed die plate (2), the upper end face of the fixed die panel (1) is fixedly connected with an upper heat insulation plate (9), one side of the fixed die plate (2) away from the fixed die panel (1) is movably connected with a movable die plate (3), the lower end face of the movable die plate (3) is fixedly provided with a supporting component (4), one end of the supporting component (4) away from the movable die plate (3) is fixedly connected with a movable die panel (7), the middle part of the supporting component (4) is movably sleeved with a thimble panel (5), the lower end face of the thimble panel (5) is fixedly connected with a thimble bottom plate (6), one side of the thimble bottom plate (6) away from the thimble panel (5) is in contact connection with the upper end face of the movable die panel (7), the upper end face of the thimble panel (5) is uniformly provided with a thimble (70), the outer wall of the thimble (70) is movably sleeved with the inner wall of the movable die plate (3), the outer wall of the thimble (70) is movably sleeved with a spring, the inner wall of the fixed die plate (2) is fixedly sleeved with a front die insert (20), the front die insert (20) is fixedly sleeved with a front die insert (20), one end face (20) is fixedly provided with a front die insert (20), the inner wall fixed mounting of movable mould board (3) has back mould benevolence (30), the middle part fixedly connected with polygon mold insert (31) of back mould benevolence (30) up end, the up end fixedly connected with of back mould benevolence (30) is located location mold insert (32) of polygon mold insert (31) front and back both sides, the middle part of location mold insert (32) is provided with spacing mold insert (33), the inboard fixed mounting of back mould benevolence (30) has slider (40), the up end fixed mounting of back mould benevolence (30) has slider (41) No. two that are located slider (40) rear, oblique guide pillar (45) have been cup jointed in the inner wall activity of slider (40) and slider (41) No. two, the middle part of slider (40) and slider (41) is provided with product standing groove (11) before the rubber coating.

2. The secondary encapsulation injection mold of claim 1, wherein: the inside fixed mounting of back mould benevolence (30) has antifriction plate (44), and the up end of antifriction plate (44) all with the lower terminal surface fixed connection of slider (40) and No. two sliders (41), the left and right sides of slider (40) and No. two sliders (41) all fixed mounting has brass water injection well choke (101), one side fixed mounting that back mould benevolence (30) was kept away from to antifriction plate (44) has a layering (42), and the up end of layering (42) and the lower extreme fixed connection of polygon mold insert (31), the front and back both sides of back mould benevolence (30) all fixedly connected with layering (43) No. two, and the outside fixed connection of layering (43) and antifriction plate (44) in No. two.

3. The secondary encapsulation injection mold of claim 1, wherein: the inner wall screw thread of fixed die plate (2) has cup jointed fastening screw (102), the outer wall of fastening screw (102) cup joints with the inner wall screw thread of oblique guide pillar (45), lock module (8) are installed in the junction of fixed die plate (2) and movable die plate (3).

4. The secondary encapsulation injection mold of claim 1, wherein: the support assembly (4) comprises a first die leg (401) and a second die leg (402), the upper ends of the first die leg (401) and the second die leg (402) are fixedly connected with the lower end face of the movable die plate (3), the lower ends of the first die leg (401) and the second die leg (402) are fixedly connected with the upper end face of the movable die plate (7), the first die leg (401) is arranged on one side of the thimble panel (5), and the second die leg (402) is arranged on the other side of the thimble panel (5).

5. The secondary encapsulation injection mold of claim 1, wherein: the lower end face of the movable mould panel (7) is fixedly provided with a lower heat insulation plate (10), the lower end face of the lower heat insulation plate (10) is externally connected with an electric push rod, and an output shaft of the electric push rod penetrates through the movable mould panel (7) and the inside of the lower heat insulation plate (10) and is fixedly connected with the lower end face of the thimble bottom plate (6).

6. The secondary encapsulation injection mold of claim 2, wherein: the inner wall threads of the wear-resisting plate (44) are sleeved with connecting screws (100) positioned on the left side and the right side of the first sliding block (40), and the outer wall of the lower end of the connecting screw (100) is sleeved with the inner wall threads of the movable template (3).