CN219294580U

CN219294580U - Mould mechanism and injection molding equipment

Info

Publication number: CN219294580U
Application number: CN202223068011.2U
Authority: CN
Inventors: 郭凤龙; 严红伟; 雷杨锋; 彭红玉
Original assignee: Futaihua Industry Shenzhen Co Ltd
Current assignee: Futaihua Industry Shenzhen Co Ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-07-04
Anticipated expiration: 2032-11-18

Abstract

The application provides a die mechanism, including: the first die comprises a first end face and is provided with a first groove; the second die comprises a first plate body, a second plate body, a containing cavity and a containing groove, wherein the first plate body comprises a second end face, the second plate body comprises a side face connected with the second end face, a second groove is formed in the side face, the containing groove comprises a bottom wall facing the second end face, side walls arranged on the first plate body and the second plate body, and a first limiting piece concavely arranged on the second end face is arranged in the containing groove; the demolding assembly comprises a rotating piece and an elastic assembly, wherein the rotating piece comprises a first rotating part exposed out of a second end face, a second rotating part exposed out of a second groove, and a first face, a second face, a third face, a fourth face, a fifth face and a sixth face which are sequentially connected, the second face is parallel to the sixth face, and a third groove exposed out of the second groove is formed in the second rotating part. The size of the die mechanism is reduced. The application also provides injection molding apparatus.

Description

Mould mechanism and injection molding equipment

Technical Field

The application relates to the field of injection molding, in particular to a mold mechanism and injection molding equipment.

Background

Existing mold mechanisms typically include an upper mold, a lower mold, and a stripper assembly, which typically includes a drive and a tilt pin. The inclined pin passes through the lower die, and the driving piece is arranged on the surface of the lower die or is arranged at intervals on the lower die. And after injection molding is finished, driving the taper pin to separate from the injection molding piece, and finishing demolding of the injection molding piece. However, since the driving members are disposed on the surface of the mold plate or spaced apart from the mold plate, the mold mechanism is relatively bulky.

Disclosure of Invention

In view of this, the present application provides a mold mechanism that facilitates a reduction in volume.

The application provides injection molding apparatus that also includes the mold mechanism.

The application provides a die mechanism, including:

the first die comprises a first end face, and a first groove is formed in the first end face;

the second die comprises a first plate body and a second plate body, the first plate body comprises a second end face, the second plate body is convexly arranged on the second end face and comprises a side face connected with the second end face, a second groove is formed in the side face, the second die is provided with a containing groove at the joint of the second end face and the side face, the containing groove is formed in the bottom of the second groove and the second end face, the containing groove comprises a bottom wall arranged towards the second end face and a side wall arranged on the first plate body and the second plate body, a first limiting part concavely arranged on the second end face and spaced from the second plate body is arranged in the containing groove, and a containing cavity is further formed in the bottom wall and located between the side wall and the first limiting part;

the demolding assembly comprises a rotating part arranged in the accommodating groove and an elastic assembly arranged in the accommodating cavity, wherein the rotating part comprises a first rotating part exposed out of the second end face, a second rotating part exposed out of the second groove, a first face, a second face, a third face, a fourth face, a fifth face and a sixth face which are sequentially connected, the second face is parallel to the sixth face, a third groove exposed out of the second groove is arranged on the second rotating part, the second face faces towards the first limiting part when the first mold and the second mold are assembled, the third face is abutted against the bottom wall and the elastic assembly, the fifth face is abutted against the side wall, the included angle of the fourth face and the bottom wall is an acute angle and equal to the included angle of the sixth face and the side wall, and the first groove, the second groove and the third groove are communicated to form an injection molding cavity.

Optionally, along a connection direction from the first face to the sixth face, a width of the fourth face is greater than a width of the third face, and a width of the sixth face is greater than a width of the fifth face.

Optionally, the second rotating portion is a boss structure.

Optionally, the die mechanism further includes a second limiting member, where the second limiting member is convexly disposed on the first end surface, and the second limiting member is used to be inserted into the accommodating groove and abut against the first surface.

Optionally, the second limiting member is detachably connected with the first mold.

Optionally, the accommodating cavity further penetrates through the first plate body along a direction away from the second end face, the accommodating cavity comprises a first cavity part and a second cavity part which are mutually communicated, the first cavity part is communicated with the accommodating groove, and the aperture of the first cavity part is smaller than that of the second cavity part;

the elastic component comprises an elastic piece and a movable pin, the movable pin comprises a rod body and a third limiting piece, the rod body is used for penetrating through the elastic piece and penetrating through the first cavity part from the second cavity part to be abutted against the third surface, and the third limiting piece is convexly arranged on the rod body along the radial direction of the rod body and used for limiting the elastic piece to be positioned in the second cavity part;

the die mechanism further comprises a fixing piece, the fixing piece is used for being fixed to the second cavity portion, the opposite ends of the elastic piece are respectively abutted to the third limiting piece and the fixing piece, and the elastic piece is used for driving the movable pin to move close to the second end face.

Optionally, the first limiting piece is detachably connected with the first plate body.

Optionally, the second plate body includes deviating from the third terminal surface that the second terminal surface set up, be provided with the intercommunication on the third terminal surface the fourth recess of second recess, the bottom of fourth recess is provided with the fifth recess, the fifth recess interval in the holding groove sets up, the chamber of moulding plastics still includes the fourth recess with the fifth recess.

Optionally, a first positioning piece is arranged on the first end face, a second positioning piece is arranged on the second end face, and the second positioning piece is clamped with the first positioning piece.

The application also provides an injection molding device, including the subassembly of moulding plastics, injection molding device still include mould mechanism, the subassembly of moulding plastics is used for inserting in the intracavity of moulding plastics in order to input the material of moulding plastics.

Compared with the prior art, the holding groove exposed out of the second end face and the second groove is arranged on the second die, and the first limiting piece used for limiting is arranged in the holding groove, so that the rotating piece is limited in the holding groove. And the rotating member includes a first face, a second face, a third face, a fourth face, a fifth face, and a sixth face that are sequentially connected and intersected such that the third face and the fourth face form a lever structure, and the fifth face and the sixth face form a lever structure. In addition, set up the elastic component in the second mould butt in the third face, can drive the rotation that rotates the piece to keeping away from the chamber of moulding plastics through elastic component's deformation to accomplish the drawing of patterns of injection molding. The demolding assembly is arranged in the second mold, so that the size of the mold mechanism is reduced.

Drawings

FIG. 1 is a schematic diagram of a mold mechanism according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of the mold mechanism shown in FIG. 1 taken along line V-V;

FIG. 3 is a schematic view of a second mold of the mold mechanism shown in FIG. 1;

FIG. 4 is an enlarged view of portion A of the mold mechanism shown in FIG. 2;

FIG. 5 is a cross-sectional view of a rotating member of the mold mechanism shown in FIG. 2;

fig. 6 is a schematic structural diagram of an injection molding provided in an embodiment of the present application.

Description of the main reference signs

The following detailed description will further illustrate the application in conjunction with the above-described figures.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear …) in the embodiments of the present application are merely used to explain the relative positions, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture changes, the directional indicators correspondingly change. The descriptions of "first," "second," and the like in the embodiments of the present application are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Referring to fig. 1 and 2, the present application provides a mold mechanism 100, the mold mechanism 100 being used to mold an injection molded article 90 (see fig. 6). The mold mechanism 100 includes a first mold 10, a second mold 20, and a stripper assembly 30. The first die 10 includes a first end face 101. The first end face 101 is provided with a first groove 11. The second mold 20 includes a first plate 21 and a second plate 22. The first plate 21 includes a second end face 201. The second plate 22 is disposed on the second end 201 in a protruding manner and includes a side 221 connected to the second end 201. Referring to fig. 3, the side 221 is provided with a second groove 223. The second mold 20 is provided with a receiving groove 23 at the connection between the second end surface 201 and the side surface 221. The accommodating groove 23 is formed at the bottom of the second groove 223 and the second end surface 201. Referring to fig. 2, the receiving groove 23 includes a bottom wall 231 disposed toward the second end surface 201 and side walls 232 disposed on the first plate 21 and the second plate 22. The accommodating groove 23 is provided therein with a first limiting member 40 concavely disposed on the second end surface 201 and spaced from the second plate 22. The second mold 20 is further provided with a receiving cavity 24 at the bottom wall 231. The accommodating cavity 24 is located between the side wall 232 and the first limiting member 40.

Referring to fig. 2 and 4, the demolding assembly 30 includes a rotating member 31 disposed in the receiving groove 23 and an elastic assembly 32 disposed in the receiving cavity 24. Referring to fig. 2, the rotating member 31 includes a first rotating portion 311 exposed from the second end surface 201 and a second rotating portion 312 exposed from the second groove 223. Referring to fig. 4 and 5, the rotating member 31 further includes a first surface 3110, a second surface 3120, a third surface 3130, a fourth surface 3140, a fifth surface 3150, and a sixth surface 3160, which are sequentially connected and intersected. The second face 3120 is parallel to the sixth face 3160. The second rotating portion 312 is provided with a third groove 301 exposed from the second groove 223. The second surface 3120 is disposed toward the first stopper 40 when the first mold 10 and the second mold 20 are closed. The third face 3130 abuts the bottom wall 231 and the elastic member 32. The fifth face 3150 abuts the side wall 232. And, the included angle α1 between the fourth surface 3140 and the bottom wall 231 is an acute angle and is equal to the included angle α2 between the sixth surface 3160 and the side wall 232. And, the first groove 11, the second groove 223 and the third groove 301 are communicated to form an injection molding cavity 102.

In the clamped state, the spring assembly 32 is in a compressed state. After injection molding the injection mold 90, the first mold 10 is moved away from the second mold 20, and at this time, the elastic member 32 returns to its deformed state, and applies a pushing force to the third surface 3130 in the direction of the second end surface 201. Since the third surface 3130 and the fourth surface 3140 intersect, and the fourth surface 3140 and the bottom wall 231 form an included angle α1 that is acute, the junction of the third surface 3130 and the fourth surface 3140 becomes a fulcrum. Also, a fulcrum is formed at the interface between the fifth surface 3150 and the sixth surface 3160. Such that the third face 3130 and the fourth face 3140 form a lever structure, and the fifth face 3150 and the sixth face 3160 form a lever structure. Under the thrust of the elastic component 32, the third surface 3130 moves away from the bottom wall 231, the fourth surface rotates and abuts against the bottom wall 231, the fifth surface 3150 moves away from the side wall 232, the sixth surface 3160 rotates and abuts against the side wall 232, so that the second rotating portion 312 of the rotating member 31 rotates in a direction away from the injection cavity 102, and the injection molding member 90 is separated from the engagement of the third groove 301, and the injection molding member 90 can be removed from the second mold 20 by a manipulator.

The second die 20 is provided with the accommodating groove 23 exposed out of the second end face 201 and the second groove 223, and the accommodating groove 23 is internally provided with the first limiting piece 40 for limiting, so that the rotating piece 31 is limited in the accommodating groove 23. And the rotator 31 includes the first surface 3110, the second surface 3120, the third surface 3130, the fourth surface 3140, the fifth surface 3150, and the sixth surface 3160 which are sequentially connected and intersected such that the third surface 3130 and the fourth surface 3140 form a lever structure and the fifth surface 3150 and the sixth surface 3160 form a lever structure. In addition, the elastic component 32 abutting against the third surface 3130 is disposed in the second mold 20, and the rotating member 31 can be driven to rotate away from the injection cavity 102 by the deformation of the elastic component 32, so as to complete the demolding of the injection molding member 90. Since the stripper assembly 30 is disposed within the second mold 20, the volume of the mold mechanism 100 is advantageously reduced.

Referring to fig. 6, the injection molding member 90 molded by the mold mechanism 100 includes a first portion 91 and a first boss 911 protruding on the first portion 91. The first portion 91 is formed in an area defined by the first groove 11 and the second groove 223, and the first boss 911 is formed in an area defined by the third groove 301. In this embodiment, the number of the second grooves 223 is two. The number of the third grooves 301 is four, and two third grooves 301 are disposed on one second groove 223 at intervals. Therefore, the number of the first portions 91 is two, and the number of the first bosses 911 is four.

In other embodiments, the number of first portions 91 and first bosses 911 may vary, such as one or more.

In this embodiment, the side wall 232 is perpendicular to the bottom wall 231. The included angle alpha 1 and the included angle alpha 2 are ten degrees. The third face 3130 is perpendicular to the fifth face 3150. The first face 3110 is parallel to the fifth face 3150.

In further embodiments, the degrees of the included angle α1 and the included angle α2 may vary. The side wall 232 may not be perpendicular to the bottom wall 231. The third face 3130 is not perpendicular to the fifth face 3150, and the first face 3110 is not parallel to the fifth face 3150.

In some embodiments, referring to fig. 2 and 5, a width W4 of the fourth surface 3140 is greater than a width W3 of the third surface 3130 along a connection direction of the first surface 3110 to the sixth surface 3160. The width W6 of the sixth surface 3160 is greater than the width W5 of the fifth surface 3150. So that the fourth face 3140 and the third face 3130, the fifth face 3150 and the sixth face 3160 each form a labor-saving lever. The elastic component 32 applies a small pushing force to push the rotating member 31 to rotate, so that the second rotating portion 312 moves away from the injection cavity 102.

In further embodiments, the width W4 is equal to or less than the width W3, and the width W6 is equal to or less than the width W5.

In the present embodiment, referring to fig. 5, along the connection direction of the first surface 3110 to the sixth surface 3160, the width W2 of the second surface 3120 is greater than the width W1 of the first surface 3110.

In further embodiments, the width W2 of the second face 3120 may be equal to or less than the width W1 of the first face 3110.

In some embodiments, referring to fig. 5, the second rotating portion 312 is a boss structure.

In other embodiments, the second rotating portion 312 may have a conical structure.

In some embodiments, referring to fig. 3, the second plate 22 includes a third end surface 222 disposed away from the second end surface 201. The third end surface 222 is provided with a fourth groove 224 communicating with the second groove 223. The bottom of the fourth groove 224 is provided with a fifth groove 225. The fifth grooves 225 are spaced apart from the accommodating groove 23, and in this embodiment, the fifth grooves 225 are spaced apart from the accommodating groove 23 along a direction away from the third end surface 222. In a further embodiment, the fifth grooves are spaced apart from the receiving groove 23 in a direction away from the side 221. As long as the fifth groove is not communicated with the accommodation groove 23. Referring to fig. 2, the injection molding cavity 102 further includes the fourth recess 224 and the fifth recess 225.

In this embodiment, referring to fig. 6, the injection molding member 90 having a more complex structure may be formed by providing the fourth groove 224 and the fifth groove 225, and the injection molding member 90 further includes a second portion 92 and a second boss 921 protruding from the second portion 92. Referring to fig. 2 and 6, the second portion 92 is formed in an area defined by the first groove 11 and the fourth groove 224, and the second boss 921 is formed in an area defined by the fifth groove 225.

In further embodiments, the second mold 20 may not be provided with the fourth groove 224 and the fifth groove 225.

In some embodiments, referring to fig. 2 and 4, the receiving cavity 24 also extends through the first plate 21 in a direction away from the second end face 201. The receiving chamber 24 includes a first chamber portion 241 and a second chamber portion 242 which are communicated with each other. The first cavity portion 241 communicates with the accommodating groove 23. The aperture of the first cavity portion 241 is smaller than the aperture of the second cavity portion 242. The elastic assembly 32 includes an elastic member 321 and a movable pin 322. The movable pin 322 includes a rod 3221 and a third stop 3222. The rod 3221 is configured to pass through the elastic member 321 and abut against the third surface 3130 from the second cavity portion 242 through the first cavity portion 241. The third limiting member 3222 is disposed on the rod 3221 along a radial direction of the rod 3221 in a protruding manner and is used for limiting the elastic member 321 to be located in the second cavity 242. The mold mechanism 100 also includes a mount 60. The fixing member 60 is configured to be fixed to the second cavity 242, such that opposite ends of the elastic member 321 respectively abut against the third limiting member 3222 and the fixing member 60. The fixing member 60 may be fixed to the second cavity 242 by a snap-fit or screw-fit manner. The elastic member 321 is used for driving the movable pin 322 to move close to the second end surface 201. When the first mold 10 and the second mold 20 are closed, the first mold 10 pushes the rod 3221 to move away from the second end face 201, and the third limiting member 3222 presses the elastic member 321, so that the elastic member 321 is compressed. When the first mold 10 moves away from the second mold 20, the deformation of the elastic member 321 is restored to push the movable pin 322 to move toward the second end surface 201.

The elastic component 32 includes the elastic member 321 and the movable pin 322, and the fixing member 60 is used to mount the elastic component 32, which facilitates the disassembly and the assembly of the mold mechanism 100.

In other embodiments, the receiving cavity 24 may not extend through the second plate 22 in a direction away from the second end surface 201. The elastic component 32 may comprise only the elastic member 321, and the elastic member 321 is optionally fixed in the accommodating cavity 24 by gluing.

In this embodiment, the elastic member 321 is a spring. In other embodiments, the elastic member 321 may be a sleeve structure that is elastically stretchable.

In the present embodiment, referring to fig. 4, in the second cavity 242, the aperture of the second cavity 242 for accommodating the elastic member 321 is larger than the aperture of the second cavity 242 for accommodating the fixing member 60. So that the second cavity portion 242 has an inverted T-shape in cross section in a direction parallel to the extending direction of the elastic member 321. In further embodiments, the aperture of the portion of the second cavity 242 for receiving the elastic member 321 is equal to the aperture of the portion of the second cavity 242 for receiving the fixing member 60. So long as the movable pin 322 can be received in the receiving cavity 24 from the second cavity portion 242.

In some embodiments, referring to fig. 2 and 4, the first limiting member 40 is detachably connected to the first plate 21. In this embodiment, the first limiting member 40 is detachably connected to the first plate 21 by a screw, and the screw passes through the first limiting member 40 and is fixed to the bottom wall 231. The first limiting member 40 is detachably connected with the first plate 21, so as to facilitate the installation of the rotating member 31.

In other embodiments, the first limiting member 40 may be detachably connected to the first plate 21 by a male-female engagement manner, a magnetic connection manner, or a threaded connection manner.

In other embodiments, the first limiting member 40 may be non-detachably disposed on the bottom wall 231 by gluing or direct molding.

In some embodiments, referring to fig. 2 and 4, the mold mechanism 100 further includes a second stop 50. The second limiting member 50 is protruding from the first end surface 101. The second limiting member 50 is configured to be inserted into the accommodating groove 23 and abut against the first surface 3110. When the first mold 10 and the second mold 20 are closed, the second limiting member 50 abuts against the first surface 3110, so as to prevent the displacement of the rotating member 31 caused by the elastic force of the elastic component 32, which is beneficial to improving the molding stability of the mold mechanism 100.

In this embodiment, the second limiting member 50 is further configured to abut against the first limiting member 40.

In another embodiment, when the second limiting member 50 is inserted into the accommodating groove 23, the second limiting member 50 is spaced apart from the first limiting member 40 in a direction away from the first end face 101.

In some embodiments, referring to fig. 2 and 4, the second stop 50 is removably coupled to the first mold 10. In this embodiment, the second limiting member 50 is detachably connected to the first mold 10 by a screw, and the screw is fixed to the first mold 10 through the second limiting member 50.

In other embodiments, the second limiting member 50 may be detachably connected to the first mold 10 by means of a male-female engagement, a threaded connection, or a magnetic connection.

In further embodiments, the mold mechanism 100 is not provided with the second stop 50.

In some embodiments, referring to fig. 1, the first end surface 101 is provided with a first positioning member 70. The second end surface 201 is provided with a second positioning member 80. The second positioning member 80 is engaged with the first positioning member 70. In this embodiment, the first positioning member 70 is a groove structure, and the second positioning member 80 is a bump.

In further embodiments, the first positioning member 70 is a bump and the second positioning member 80 is a groove.

Providing the first positioning member 70 and the second positioning member 80 facilitates improving the mold clamping accuracy of the first mold 10 and the second mold 20, thereby improving the molding stability of the mold mechanism 100.

In further embodiments, the mold mechanism 100 is not provided with the first positioning member 70 and the second positioning member 80.

The application also provides injection molding equipment. The injection molding apparatus includes an injection molding assembly and the mold mechanism 100. The injection molding assembly is configured to be inserted into the injection molding cavity 102 for injection molding material.

In this embodiment, a communication hole 103 is provided on the first mold 10, and the communication hole 103 communicates with the injection cavity 102. The injection molding assembly is inserted into the injection molding cavity 102 from the communication hole 103.

In further embodiments, the communication hole 103 may be provided on the second mold 20.

The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the scope of the claims, and all equivalent structural changes made by the specification and drawings of the present application or direct/indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims

1. A mold mechanism, comprising:

2. The mold mechanism of claim 1, wherein a width of the fourth face is greater than a width of the third face along a connecting direction of the first face to the sixth face, the sixth face having a width greater than a width of the fifth face.

3. The mold mechanism of claim 1, wherein the second rotating portion is a boss structure.

4. The mold mechanism of claim 1, further comprising a second limiting member protruding from the first end surface, the second limiting member being configured to be inserted into the receiving slot and abut against the first surface.

5. The mold mechanism of claim 4, wherein the second stop is removably coupled to the first mold.

6. The mold mechanism of claim 1, wherein the receiving cavity further extends through the first plate in a direction away from the second end face, the receiving cavity including a first cavity portion and a second cavity portion in communication with each other, the first cavity portion being in communication with the receiving cavity, the first cavity portion having a smaller aperture than the second cavity portion;

7. The mold mechanism of claim 1, wherein the first stop is removably coupled to the first plate.

8. The mold mechanism of claim 1, wherein the second plate includes a third end surface disposed away from the second end surface, a fourth groove communicating with the second groove is disposed on the third end surface, a fifth groove is disposed at a bottom of the fourth groove, the fifth groove is disposed at a distance from the receiving groove, and the injection cavity further includes the fourth groove and the fifth groove.

9. The mold mechanism of claim 1, wherein a first positioning member is disposed on the first end surface, and a second positioning member is disposed on the second end surface, the second positioning member being engaged with the first positioning member.

10. An injection molding apparatus comprising an injection molding assembly, wherein the injection molding apparatus further comprises the mold mechanism of any one of claims 1 to 9, the injection molding assembly for insertion into the injection cavity for inputting injection molding material.