CN219667298U - Improved injection mold - Google Patents

Abstract

The utility model discloses an improved injection mold, which relates to the technical field of injection molds and comprises a movable mold assembly and a fixed mold assembly, wherein the movable mold assembly comprises a top plate, a movable mold frame is installed at the lower end of the top plate, two pull bars are installed at the left end and the right end of the movable mold frame, a pull groove penetrating left and right is formed at the left end of each pull bar, guide posts are installed at four corners of the lower end of the movable mold frame, an injection runner assembly is arranged at the upper end of the top plate, the injection runner assembly extends to the lower part of the movable mold frame, two demolding assemblies are arranged at the lower end of the movable mold frame, and the two demolding assemblies are distributed in a bilateral symmetry manner by taking the injection runner assembly as a center. According to the utility model, the movable mold assembly and the fixed mold assembly are arranged to assemble the three-plate mold, and the injection runner assembly is arranged to enable the mold to mold two injection products at one time, so that the molding quality of the product is high, no obvious glue inlet point is visible, the appearance requirement of the medical injection products can be met, the manual removal of condensed materials is omitted, and the production efficiency is improved.

Description

Improved injection mold

Technical Field

The utility model relates to the technical field of injection molds, in particular to an improved injection mold.

Background

Plastics have extremely important applications in the medical field, and injection molded products are among the most used. In view of the extremely harsh requirements of certain medical injection products on sanitation and cleanliness, and the high requirements on the appearance of the molded products, and the requirements on the precision, the thinning and the high productivity of the medical injection products, the production units such as an injection molding machine, a mold, a manipulator and the like and the mutual matching of the production units do not need to be challenged.

A three-plate mold, also known as a double parting mold, has two parting surfaces. The flow channel and the product are taken out from the different parting surfaces. The three-plate plastic mold has an additional moving intermediate plate (stripper plate) as compared to the two-plate mold. When the mold is opened, the push plate and the fixed mold plate are separated by a fixed distance, so that condensed materials between the two plates can be conveniently taken out. The three-plate plastic mould is suitable for single-cavity or multi-cavity injection mould with point gate feeding.

Because the feeding port of the three-plate die can be arranged at the middle position of the plastic part, the product forming quality is higher, the appearance requirement of medical injection products can be met, and the manual cutting of condensed materials is omitted, so that the production efficiency is effectively improved, and the improved injection die is provided.

Disclosure of Invention

The utility model mainly aims to provide an improved injection mold which can effectively solve the problems in the background technology.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an improved generation injection mold, includes movable mould subassembly and cover half subassembly, movable mould subassembly includes the roof, the movable mould frame is installed to the roof lower extreme, two braces are all installed to movable mould frame left end and right-hand member, the stay left end is opened has the draw groove of lining up about, the guide post is all installed in movable mould frame lower extreme four corners, the roof upper end is provided with the runner subassembly that moulds plastics, the runner subassembly that moulds plastics extends to movable mould frame below, the movable mould frame lower extreme is provided with two drawing of patterns subassemblies, two the runner subassembly that moulds plastics is left and right symmetry with the runner subassembly as the center, the cover half subassembly includes the fixed mould frame, the fixed mould frame is all movably alternate with four guide posts and is connected, the cover half frame lower extreme has the cushion through guide pillar sliding connection, the cushion is U-shaped structure, the bottom plate is installed to the cushion lower extreme, bottom plate upper end mid-mounting has the top needle board, two screw holes are all opened to cover half frame left end and right-hand member.

Preferably, the injection molding runner assembly comprises a main runner, wherein the lower end of the main runner is fixedly inserted into the top plate and is provided with a sub-runner, and the sub-runner is fixedly inserted into the movable mould frame.

Preferably, the split flow channel comprises a connecting hole, the connecting hole is communicated with the main flow channel, a split flow channel is arranged at the lower end of the connecting hole, and two branch injection molding heads are arranged at the lower end of the split flow channel.

Preferably, the demoulding assembly consists of a fixed sliding block and an inclined guide post, and the fixed sliding block is positioned on the right outer side of the inclined guide post.

Preferably, the fixed die frame is of a U-shaped structure, two movable sliding blocks are slidably connected in a concave area in the middle of the fixed die frame, the two movable sliding blocks are respectively matched with the two fixed sliding blocks, inclined holes are formed in the upper ends of the two movable sliding blocks, the two inclined holes are respectively matched with the two inclined guide posts, the two movable sliding blocks are respectively provided with a groove at one end close to each other, and a center block is arranged at the center of the upper end of the fixed die frame.

Preferably, an injection molding cavity is formed among the movable sliding block, the central block and the two branch injection molding heads.

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

1. the movable die assembly and the fixed die assembly are arranged to assemble the three-plate die, so that the three-plate die can be used for injection molding of medical plastic products, the molding quality of the products is high, obvious glue inlet points cannot be seen, the appearance requirements of the medical injection products can be met, manual removal of condensed materials is omitted, and the production efficiency is effectively improved;

2. the injection runner assembly is arranged, so that two injection products can be molded at one time by the mold, when plastic glue solution enters the connecting hole from the main runner, the plastic glue solution uniformly enters the two injection heads along the two flow runners and then enters the two injection cavities, and the injection efficiency is effectively improved.

Drawings

FIG. 1 is a schematic diagram of a mold closing state of the present utility model;

FIG. 2 is a schematic diagram of the split mode state of the present utility model;

FIG. 3 is a schematic perspective view of a movable mold assembly;

FIG. 4 is a schematic perspective view of another view of the movable module assembly;

FIG. 5 is a schematic perspective view of an injection runner assembly;

FIG. 6 is a schematic perspective view of a sub-channel;

fig. 7 is a schematic perspective view of a stationary mold assembly.

In the figure: 1. a movable mold assembly; 2. a stationary mold assembly; 11. a top plate; 12. a movable mould frame; 13. bracing; 14. drawing a groove; 15. a guide post; 16. injection molding the runner assembly; 17. a demolding assembly; 21. a main flow passage; 22. a sub-runner; 31. a connection hole; 32. one divided into two flow channels; 33. two branch injection molding heads; 41. a fixed sliding block; 42. oblique guide posts; 51. setting a die frame; 52. a cushion block; 53. a bottom plate; 54. a needle ejection plate; 55. screw holes; 61. a movable slide block; 62. inclined holes; 63. a profile groove; 64. a central block.

Detailed Description

The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1-7, an improved injection mold comprises a movable mold assembly 1 and a fixed mold assembly 2, the movable mold assembly 1 comprises a top plate 11, the movable mold assembly 12 is installed at the lower end of the top plate 11, two pull rods 13 are installed at the left end and the right end of the movable mold assembly 12, a pull groove 14 penetrating left and right is formed at the left end of each pull rod 13, in this embodiment, the pull groove 14 is of a strip-shaped structure, guide posts 15 are installed at four corners at the lower end of the movable mold assembly 12, an injection runner assembly 16 is arranged at the upper end of the top plate 11, the injection runner assembly 16 extends to the lower side of the movable mold assembly 12, two demolding assemblies 17 are symmetrically distributed left and right by taking the injection runner assembly 16 as the center, the fixed mold assembly 2 comprises a fixed mold frame 51, the fixed mold frame 51 is movably and alternately connected with four guide posts 15, a cushion block 52 is connected at the lower end of the fixed mold frame 51 through guide posts in a sliding manner, a cushion block 52 is of a U-shaped structure, a top plate 52 is arranged at the lower end of the fixed mold frame 51, two ejector pins are arranged at the upper ends of the fixed mold frame 51, and the bottom plate 52 is provided with a bottom plate 55, and the top plate 55 is provided with a top plate 55 is arranged at the lower end of the top plate and is provided with a bottom plate 55.

Further, the injection runner assembly 16 includes a main runner 21, the lower end of the main runner 21 is fixedly inserted into the top plate 11 and is provided with a sub runner 22, and the sub runner 22 is fixedly inserted into the movable mold frame 12.

Further, the split runner 22 includes a connecting hole 31, the connecting hole 31 is communicated with the main runner 21, a split runner 32 is installed at the lower end of the connecting hole 31, the connecting hole 31 is located at the center of the split runner 32, and two branch injection molding heads 33 are installed at the lower end of the split runner 32.

Further, the demolding assembly 17 is composed of a fixed sliding block 41 and an inclined guide post 42, the fixed sliding block 41 is located on the right outer side of the inclined guide post 42, and during demolding, the movable sliding block 61 is driven to move through the inclined guide post 42, and the fixed sliding block 41 plays a role in guiding and positioning.

Further, the fixed mold frame 51 is in a U-shaped structure, the middle recessed area of the fixed mold frame 51 is slidably connected with two movable sliding blocks 61, two movable sliding blocks 61 are respectively matched with two fixed sliding blocks 41, inclined holes 62 are formed in the upper ends of the two movable sliding blocks 61, two inclined holes 62 are respectively matched with two inclined guide posts 42, a mold groove 63 is formed in one end, close to each other, of each movable sliding block 61, a central mold block 64 is arranged at the center of the upper end of the fixed mold frame 51, and the shape of the central mold block 64 and the shape of the mold groove 63 are determined according to the shape of an injection molding product.

Further, the movable slider 61, the central block 64 and the two injection heads 33 together form an injection molding cavity.

It should be noted that, when the improved injection mold is used, firstly, four guide posts 15 are inserted into a fixed mold frame 51, then screws are used for screwing screw holes 55, tightness of the screws is adjusted, the braces 13 can move normally, then the main runner 21 is connected with the injection molding machine, the bottom plate 53 is fixed, molten plastic glue solution is extruded by the injection molding machine, the plastic glue solution flows into an injection molding cavity through the injection molding runner assembly 16, after a certain time, the injection molding machine drives the top plate 11 to move in a direction far away from the bottom plate 53, the top plate 11 drives the movable mold frame 12 to move, the movable mold frame 12 drives the demolding assembly 17 and the braces 13 to move, the two demolding assemblies 17 respectively drive the two movable slide blocks 61 to move away from each other, so that the movable slide blocks 61 are separated from injection molding products, when the screws are contacted with the tail ends of the pull grooves 14, the four braces 13 jointly drive the fixed mold frame 51 to move along with the continuous movement of the top plate 11, so that the fixed mold frame 51 is far away from the cushion blocks 52, and condensate can be taken out at the moment.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides an improved generation injection mold, includes movable mould subassembly (1) and cover half subassembly (2), its characterized in that: the movable mould assembly (1) comprises a top plate (11), movable mould frames (12) are installed at the lower ends of the top plate (11), two pull bars (13) are installed at the left ends and the right ends of the movable mould frames (12), pull grooves (14) penetrating through left and right are formed in the left ends of the pull bars (13), guide posts (15) are installed at four corners of the lower ends of the movable mould frames (12), an injection runner assembly (16) is arranged at the upper ends of the top plate (11), the injection runner assembly (16) extends to the lower portions of the movable mould frames (12), two demoulding assemblies (17) are arranged at the lower ends of the movable mould frames (12), the two demoulding assemblies (17) are symmetrically distributed left and right with the injection runner assembly (16) as a center, the fixed mould assemblies (2) comprise fixed mould frames (51), the fixed mould frames (51) are movably connected with the four guide posts (15) in a penetrating mode, cushion blocks (52) are connected with the lower ends of the fixed mould frames (51) in a penetrating mode, the cushion blocks (52) in a U-shaped structure, two demoulding assemblies (17) are arranged at the lower ends of the movable mould frames (52), and the upper ends of the fixed mould frames (53) are provided with two bottom plates (53).

2. An improved injection mold as claimed in claim 1, wherein: the injection molding runner assembly (16) comprises a main runner (21), wherein the lower end of the main runner (21) is fixedly inserted into the top plate (11) and provided with a sub-runner (22), and the sub-runner (22) is fixedly inserted into the movable mould frame (12).

3. An improved injection mold as claimed in claim 2, wherein: the split runner (22) comprises a connecting hole (31), the connecting hole (31) is communicated with the main runner (21), a split runner (32) is arranged at the lower end of the connecting hole (31), and two branch injection molding heads (33) are arranged at the lower end of the split runner (32).

4. An improved injection mold as claimed in claim 3, wherein: the demolding assembly (17) consists of a fixed sliding block (41) and an inclined guide pillar (42), and the fixed sliding block (41) is positioned right outside the inclined guide pillar (42).

5. The improved injection mold of claim 4, wherein: the fixed die frame (51) is of a U-shaped structure, two movable sliding blocks (61) are slidably connected in a concave area in the middle of the fixed die frame (51), the two movable sliding blocks (61) are matched with the two fixed sliding blocks (41) respectively, inclined holes (62) are formed in the upper ends of the movable sliding blocks (61), the two inclined holes (62) are matched with the two inclined guide posts (42) respectively, the two movable sliding blocks (61) are close to each other, a forming groove (63) is formed in one end of each movable sliding block, and a central block (64) is arranged in the center of the upper end of the fixed die frame (51).

6. The improved injection mold of claim 5, wherein: the movable slide block (61), the central block (64) and the two branch injection heads (33) form an injection molding cavity together.