CN210477683U

CN210477683U - Core pulling device of injection mold

Info

Publication number: CN210477683U
Application number: CN201921115130.4U
Authority: CN
Inventors: 张小文
Original assignee: Yancheng Jinde Mould Manufacturing Co Ltd
Current assignee: Yancheng Jinde Mould Manufacturing Co Ltd
Priority date: 2019-07-17
Filing date: 2019-07-17
Publication date: 2020-05-08
Anticipated expiration: 2029-07-17

Abstract

The utility model discloses an injection mold's device of loosing core relates to mould design and manufacturing technical field. Including lower mould and last mould, the upper surface activity of lower mould is provided with two mechanisms of loosing core, and the lower surface of going up the mould all with the lower mould and the upper surface overlap joint of the mechanism of loosing core, the upper surface activity of lower mould is pegged graft and is had the gag lever post, and the upper surface of lower mould is with the both ends of lower mould perpendicular bisector fixed mounting respectively has two limiting plates. This injection mold's device of loosing core, through setting up the handle, mechanism and the limiting plate of loosing core, the pulling handle drives the movable rod and makes the mechanism of loosing core at the inside horizontal migration of limiting plate, the problem of conventional injection mold adopted the motor to drive the slider and make mould equipment structure complicated and cause manufacturing cost to increase has been solved, the device's simple structure has made things convenient for user's use, the process of loosing core accurate stable greatly reduced the manufacturing cost of mould manufacturing trade, work efficiency is improved, the result of use ideal to the user.

Description

Core pulling device of injection mold

Technical Field

The utility model relates to a mold design specifically is an injection mold's device of loosing core with making technical field.

Background

The injection mold is a tool for producing plastic products and is also a tool for endowing the plastic products with complete structures and accurate sizes, the injection molding is a processing method used in batch production of parts with complex shapes, in some parts formed by the mold, parting different from the mold opening direction of the mold inevitably exists, for example, the parts are provided with lateral holes, lateral grooves, lateral bosses and the like, the lateral parting and the core-pulling demolding are generally needed, but the existing injection mold has the following defects:

in the prior art, the core pulling mode of the conventional injection mold mostly utilizes a motor to drive a plurality of sliding block combinations to realize the core pulling of the injection mold in the porous direction, the mode not only makes the injection mold equipment structure become complicated, but also increases the production cost of the mold product industry, and the practical effect is not ideal for users.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an injection mold's device of loosing core possesses simple structure and low in production cost's advantage, has solved the problem that the structure is complicated and manufacturing cost is high.

(II) technical scheme

For the purpose of realizing above-mentioned simple structure and low in production cost, the utility model provides a following technical scheme: the core pulling device of the injection mold comprises a lower mold and an upper mold, wherein two core pulling mechanisms are movably arranged on the upper surface of the lower mold, the lower surface of the upper mold is in lap joint with the upper surfaces of the lower mold and the core pulling mechanisms, limiting rods are movably inserted into the upper surface of the lower mold, two limiting plates are respectively and fixedly installed on the upper surface of the lower mold at two ends of a perpendicular bisector of the lower mold, the core pulling mechanisms are in lap joint with opposite surfaces of the two limiting plates, and an electric push rod is fixedly installed inside the lower mold;

the upper die comprises a handle, two lifting cavities and an injection molding opening, a connecting rod is movably arranged in each lifting cavity, a connecting plate is fixedly arranged at the bottom of each connecting rod, a bearing block is fixedly arranged on the lower surface of each connecting plate, and a fixing plate is fixedly arranged on the lower surface of each bearing block;

the core pulling mechanism comprises a transmission block and two movable cavities are formed in the transmission block, movable rods are arranged in the movable cavities, the top ends of the movable rods are fixedly connected with the lower surface of a fixed plate, the two movable blocks are fixedly mounted on opposite surfaces of the transmission block, and circular dies are fixedly mounted on opposite surfaces of the movable blocks.

As an optimized technical scheme of the utility model, two the surface of movable rod all rotates and is connected with the movable wheel, the movable wheel is with the inner wall overlap joint in activity chamber.

As a preferred technical scheme of the utility model, two the top of connecting rod all extends the upper surface of last mould and all is connected with the lower fixed surface of handle, and the fixed surface of handle installs the plastic cover.

As a preferred technical scheme of the utility model, four the limiting plate uses per two to be a set of, and the opposite face of two sets of limiting plates respectively with the bottom overlap joint of two transmission pieces, every group the opposite face of limiting plate all is seted up flutedly, the bottom specification of transmission piece is greater than the top, the specification looks adaptation of transmission piece bottom and recess.

As the utility model discloses an optimized technical scheme, the upper surface of lower mould and the bottom overlap joint of movable block, and the lower surface of going up the mould and the top overlap joint of movable block, the lower mould is the shaping die cavity with the cavity that the opposite face of last mould formed, the mouth of moulding plastics is linked together with the shaping die cavity.

(III) advantageous effects

Compared with the prior art, the utility model provides an injection mold's device of loosing core possesses following beneficial effect:

1. this injection mold's device of loosing core, through setting up the handle, mechanism and the limiting plate of loosing core, the pulling handle drives the movable rod and makes the mechanism of loosing core at the inside horizontal migration of limiting plate, the problem of conventional injection mold adopted the motor to drive the slider and make mould equipment structure complicated and cause manufacturing cost to increase has been solved, the device's simple structure has made things convenient for user's use, the process of loosing core accurate stable greatly reduced the manufacturing cost of mould manufacturing trade, work efficiency is improved, the result of use ideal to the user.

2. This injection mold's device of loosing core through setting up mould, bearing block and gag lever post, and the device adopts the mode of loosing core earlier and then the die sinking, has avoided conventional injection mold to loose core and has gone on simultaneously with the die sinking, and the downthehole mold core that appears the side does not take out completely just the die sinking and the moulded die glues the condition that leads to damaging the moulded die with last mould and appears, has improved the device's practicality.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

fig. 3 is an effect diagram of the forming die with holes on the side surface.

In the figure: 1. a lower die; 11. an electric push rod; 2. an upper die; 21. a lifting cavity; 22. a connecting rod; 23. a connecting plate; 24. a handle; 25. a bearing block; 26. a fixing plate; 3. a core-pulling mechanism; 31. a movable cavity; 32. a movable rod; 33. a movable block; 34. a circular mold; 35. a movable wheel; 36. a transmission block; 4. a limiting rod; 5. a limiting plate; 6. molding a mold cavity; 7. and (4) injection molding of the opening.

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.

Referring to fig. 1-3, the utility model discloses a core pulling device of an injection mold, comprising a lower mold 1 and an upper mold 2, the upper surface of the lower mold 1 is movably provided with two core pulling mechanisms 3, the lower surface of the upper mold 2 is lapped with the upper surfaces of the lower mold 1 and the core pulling mechanisms 3, the upper surface of the lower mold 1 is movably inserted with a limiting rod 4, two limiting plates 5 are respectively and fixedly installed on the upper surface of the lower mold 1 by two ends of a perpendicular line in the lower mold 1, the core pulling mechanisms 3 are lapped with opposite surfaces of the two limiting plates 5, and an electric push rod 11 is fixedly installed inside the lower mold 1;

the upper die 2 comprises a handle 24, two lifting cavities 21 and an injection port 7, a connecting rod 22 is movably arranged in each lifting cavity 21, a connecting plate 23 is fixedly arranged at the bottom of each connecting rod 22, a bearing block 25 is fixedly arranged on the lower surface of each connecting plate 23, a fixing plate 26 is fixedly arranged on the lower surface of each bearing block 25, and the core pulling device of the injection die adopts a mode of firstly pulling cores and then opening the die by arranging the upper die 2, the bearing block 25 and the limiting rod 4, so that the phenomenon that the core pulling and the die opening of the conventional injection die are carried out simultaneously is avoided, the die opening is carried out when the die core in a hole on the side is not completely pulled out, the forming die is stuck with the upper die, the forming die is damaged, and;

the core pulling mechanism 3 comprises transmission blocks 36, movable cavities 31 are formed in the two transmission blocks 36, movable rods 32 are movably arranged in the movable cavities 31, the top ends of the movable rods 32 are fixedly connected with the lower surface of a fixed plate 26, movable blocks 33 are fixedly arranged on the opposite surfaces of the two transmission blocks 36, round dies 34 are fixedly arranged on the opposite surfaces of the two movable blocks 33, the core pulling device of the injection mold solves the problems that the conventional injection mold adopts a motor to drive a sliding block to cause the structure of mold equipment to be complex and the production cost to be increased by arranging a handle 24, the core pulling mechanism 3 and a limiting plate 5 and pulling the handle 24 to drive the movable rods 32 to enable the core pulling mechanism 3 to horizontally move in the limiting plate 5, the device is simple in structure and convenient for a user to use, and the core pulling process is accurate and stable, so that the production cost of the mold manufacturing industry is greatly reduced, the working efficiency is improved, and the use effect is ideal for users.

Specifically, the surfaces of the two movable rods 32 are rotatably connected with movable wheels 35, and the movable wheels 35 are in lap joint with the inner wall of the movable cavity 31.

In this embodiment, the movable wheel 35 disposed on the surface of the movable rod 32 can prevent the excessive friction between the movable rod 32 and the inner wall of the movable cavity 31 from easily causing abrasion, which results in the locking of the core-pulling process, and the arrangement of the movable wheel 35 increases the service life of the core-pulling mechanism 3.

Specifically, the top ends of the two connecting rods 22 extend out of the upper surface of the upper die 2 and are fixedly connected with the lower surface of the handle 24, and the surface of the handle 24 is fixedly provided with a plastic sleeve.

In this embodiment, connecting rod 22 extends to go up the upper surface of mould 2 and links to each other with handle 24, and handle 24 sets up and makes things convenient for the staff to carry out the die sinking, also can replace artifical die sinking with mechanical connection as required, and the installation of plastic cover has increased the comfort of handheld portion.

Specifically, four limiting plate 5 uses per two to be a set of, and the opposite face of two sets of limiting plates 5 respectively with two transmission block 36's bottom overlap joint, every group limiting plate 5's opposite face all is seted up flutedly, transmission block 36's bottom specification is greater than the top, transmission block 36 bottom and the specification looks adaptation of recess.

In this embodiment, the bottom specification of the core-pulling mechanism 3 is matched with the specification of the groove, so that the movable rod 32 only drives the core-pulling mechanism 3 to horizontally move left and right when moving upwards, and the upward moving force is eliminated by the limiting plate 5.

Specifically, the upper surface of lower mould 1 and the bottom overlap joint of movable block 33, and go up the lower surface of mould 2 and the top overlap joint of movable block 33, the cavity that the opposite face of lower mould 1 and last mould 2 formed is shaping die cavity 6, it is linked together with shaping die cavity 6 to mould plastics mouthful 7.

In this embodiment, thereby go up mould 2 and lower mould 1 and all be the shaping die cavity 6 with the cavity that the movable block 33 overlap joint formed, guaranteed that the closure of shaping die cavity 6 makes the mould final molding effectual.

The utility model discloses a theory of operation and use flow: when in use, after the upper die 2 and the lower die 1 are assembled, raw materials are injected through the injection port 7, after the raw materials are cooled and formed, the handle 24 is pulled to open the die, the handle 24 drives the bearing block 25 and the fixed plate 26 to move upwards through the connecting rod 22 and the connecting plate 23, so that the movable rod 32 moves horizontally upwards, the movable wheel 35 abuts against the inner wall of the movable cavity 31 along with the horizontal upwards movement of the movable rod 32, so that the transmission block 36 is driven to move, the transmission block 36 drives the movable block 33 to move together with the circular die 34, the bottom of the transmission block 36 is limited in the limiting plate 5, so that the transmission block 36 drives the movable block 33 and the circular die 34 to move horizontally and only left and right, when the connecting plate 23 moves to the top surface of the inner wall of the lifting cavity 21, the movable rod 32 is separated from the inner wall of the movable cavity 31, and the core pulling mechanism 3 also moves to, after the mould is opened, the electric push rod 11 is started to eject out the forming mould, and the operation of the device is completed through the above steps.

To sum up, this injection mold's device of loosing core through setting up handle 24, mechanism 3 and limiting plate 5 of loosing core, pulling handle 24 drives movable rod 32 and makes mechanism 3 of loosing core at limiting plate 5's inside horizontal migration, has solved conventional injection mold and has adopted the motor to drive the slider and make the mould equipment structure complicated and cause the problem that manufacturing cost increases, the device's simple structure has made things convenient for user's use, the accurate stable greatly reduced manufacturing cost of mould manufacturing trade of process of loosing core, and work efficiency is improved, the result of use ideal to the user.

It should be noted that, in this document, terms such as "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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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

Claims

1. The utility model provides an injection mold's device of loosing core, includes lower mould (1) and last mould (2), its characterized in that: the core pulling mechanism comprises a lower die (1), two core pulling mechanisms (3) and a limiting rod (4), wherein the upper surface of the lower die (1) is movably provided with the two core pulling mechanisms (3), the lower surface of an upper die (2) is in lap joint with the upper surfaces of the lower die (1) and the core pulling mechanisms (3), the upper surface of the lower die (1) is movably inserted with the limiting rod (4), two limiting plates (5) are fixedly installed on the upper surface of the lower die (1) at two ends of a perpendicular bisector of the lower die (1) respectively, the core pulling mechanisms (3) are in lap joint with opposite surfaces of the two limiting plates (5), and an electric push rod (;

the upper die (2) comprises a handle (24), two lifting cavities (21) and an injection molding opening (7), a connecting rod (22) is movably arranged in each lifting cavity (21), a connecting plate (23) is fixedly arranged at the bottom of each connecting rod (22), a bearing block (25) is fixedly arranged on the lower surface of each connecting plate (23), and a fixing plate (26) is fixedly arranged on the lower surface of each bearing block (25);

the core pulling mechanism (3) comprises a transmission block (36) and two movable cavities (31) are formed in the transmission block (36), movable rods (32) are arranged in the movable cavities (31), the top ends of the movable rods (32) are fixedly connected with the lower surface of a fixing plate (26), two movable blocks (33) are fixedly mounted on the opposite surfaces of the transmission block (36), and circular dies (34) are fixedly mounted on the opposite surfaces of the movable blocks (33).

2. The core pulling device of an injection mold according to claim 1, characterized in that: the surface of the two movable rods (32) is rotatably connected with movable wheels (35), and the movable wheels (35) are in lap joint with the inner wall of the movable cavity (31).

3. The core pulling device of an injection mold according to claim 1, characterized in that: the top end of the two connecting rods (22) extends out of the upper surface of the upper die (2) and is fixedly connected with the lower surface of the handle (24), and the surface of the handle (24) is fixedly provided with a plastic sleeve.

4. The core pulling device of an injection mold according to claim 1, characterized in that: four limiting plate (5) use per two to be a set of, and the opposite face of two sets of limiting plate (5) respectively with the bottom overlap joint of two transmission block (36), every group the opposite face of limiting plate (5) all is seted up flutedly, the bottom specification of transmission block (36) is greater than the top, transmission block (36) bottom and the specification looks adaptation of recess.

5. The core pulling device of an injection mold according to claim 1, characterized in that: the upper surface of lower mould (1) and the bottom overlap joint of movable block (33), and the lower surface of going up mould (2) and the top overlap joint of movable block (33), the cavity that the opposite face of lower mould (1) and last mould (2) formed is shaping die cavity (6), it is linked together with shaping die cavity (6) to mould plastics mouth (7).