Plastic handicraft injection mold for Christmas decoration

Abstract

The utility model provides a plastic handicraft injection mold for Christmas decoration, and belongs to the field of injection molds. The injection mold comprises a movable mold plate and a fixed mold plate, a plurality of mold cores are arranged on the movable mold plate, an injection molding pipe is arranged in the fixed mold plate, an injection molding channel communicated with the injection molding pipe is arranged on the movable mold plate, and the injection molding channel is communicated with a plurality of sub-runners corresponding to the mold cores one to one. During mold closing, a plurality of forming cavities are formed among the movable mold plate, the fixed mold plate and the mold core, the sub-runners are communicated with the corresponding forming cavities, an ejection structure is arranged in the movable mold plate, injection molding liquid is injected into the forming cavities through the injection molding channels and the sub-runners at the same time, a plurality of plastic parts can be manufactured through one-time injection molding, the manufacturing efficiency is high, and the production cost is low. And after molding and cooling, the plastic part is ejected out through the ejection structure.

Description

TECHNICAL FIELD

[0001] The utility model belongs to injection mold field, especially a kind of plastic handicraft injection mold for christmas decoration. BACKGROUND

[0002] Injection mold, injection molding is also called injection molding, it is a kind of injection molding forming method, which is widely used in industrial production. When using injection mold, the raw material of injection molding can be obtained after forming, cooling and demolding in the mold. In order to highlight the Christmas element, Christmas decorations are often used to decorate during Christmas period. Generally speaking, the decorations used for Christmas are small and delicate, so the demand for this type of decoration is large, so it is necessary to improve the production efficiency.

[0003] For example, Chinese patent document discloses a kind of ornament injection mold [patent application number: CN2010337612.0], it includes mold main body, mold main body includes static die and movable die, static die includes left die plate and right die plate, left die plate is equipped with left die hole, right die plate is equipped with right die hole, the number of left die hole and right die hole is same, the diameter of left die hole is greater than the diameter of right die hole, left die plate and right die plate are equipped with injection port, left die plate and right die plate are equipped with rotating block between, rotating block is equipped with rotating shaft, rotating block is equipped with rod, movable die is equipped with left die plate and right die plate same as static die structure, movable die is equipped with notch. But the mold can not be made of multiple plastic parts by one injection molding, and the production efficiency is low. UTILITY MODEL CONTENT

[0004] The utility model aims at the above problem, provide a kind of plastic handicraft injection mold for christmas decoration.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A kind of plastic handicraft injection mold for christmas decoration, including movable die plate and fixed die plate, the movable die plate is equipped with several core prints, the fixed die plate is equipped with injection tube, the movable die plate is equipped with injection channel communicated with injection tube, the injection channel is communicated with several shunt passages corresponding to core print, the movable die plate, fixed die plate and core print form several forming cavities when clamping, the shunt passage is communicated with corresponding forming cavity, the movable die plate is equipped with ejector structure.

[0007] In the above-mentioned plastic handicraft injection mold for christmas decoration, the core print includes sequentially connected large ball type body, small ball type body and two ear-shaped bodies, the ejector structure includes several straight ejector rods, the connecting portion of the large ball type body and the small ball type body has a straight ejector rod, and the ear-shaped body has a straight ejector rod.

[0008] In the Christmas decoration plastic handicraft injection mold, the injection channel and the plurality of distribution channels are provided with straight ejector rods.

[0009] In the Christmas decoration plastic handicraft injection mold, the ejecting structure further comprises an ejecting cavity below the movable die plate, an ejecting plate is slidably arranged in the ejecting cavity, the plurality of straight ejector rods are arranged on the ejecting plate, a guide rod is arranged in the ejecting cavity, and the ejecting plate is slidably connected with the guide rod.

[0010] In the Christmas decoration plastic handicraft injection mold, the guide rod is sleeved with a spring on the outside, the spring is in a compressed state, and the two ends of the spring are connected with the movable die plate and the ejecting plate.

[0011] In the Christmas decoration plastic handicraft injection mold, the two sides of the ejecting plate are respectively provided with guide rods arranged on the movable die plate, and the ejecting plate can slide against the two guide rods when moving.

[0012] In the Christmas decoration plastic handicraft injection mold, the two sides of the ejecting plate are respectively provided with guide rods arranged on the movable die plate, and the ejecting plate can slide against the two guide rods when moving.

[0013] In the Christmas decoration plastic handicraft injection mold, the side of the movable die plate away from the fixed die plate is provided with a bottom plate, and the bottom plate is provided with a plurality of connecting holes communicated with the ejecting cavities.

[0014] In the Christmas decoration plastic handicraft injection mold, the movable die plate is provided with a plurality of cooling holes, a core bottom plate is arranged in the movable die plate, a plurality of cores are arranged on the core bottom plate, a through hole is arranged in the core bottom plate, and the cooling holes and the through hole are communicated.

[0015] In the Christmas decoration plastic handicraft injection mold, the movable die plate is provided with a plurality of positioning holes at four end corners, and the fixed die plate is provided with positioning columns corresponding to the positioning holes.

[0016] Compared with the prior art, the Christmas decoration plastic handicraft injection mold has the following advantages:

[0017] 1. The injection liquid is injected into the plurality of forming cavities through the injection channel and the distribution channels, and a plurality of plastic parts can be manufactured by one-time injection molding, so that the manufacturing efficiency is high, and the plastic parts are ejected through the ejecting structure after being formed and cooled.

[0018] 2. Because the connection between the large and small spherical bodies has an inwardly extending groove and the ear-shaped body is slender, the plastic parts at the connection between the large and small spherical bodies and the ear-shaped body are the most vulnerable during the demolding process. Distributing several straight ejector pins in these positions helps to facilitate smooth demolding and prevents the plastic parts from being twisted and deformed, resulting in defective plastic parts.

[0019] 3. After injection molding is completed, excess injection liquid and cooled molding waste will remain in the injection channel and runner. During the ejection process, this waste and the plastic part are ejected together, preventing waste from remaining in the mold and requiring secondary cleaning, thus improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure;

[0021] Figure 2 yes Figure 1 A diagram showing the hidden template;

[0022] Figure 3 yes Figure 2 A cross-sectional schematic diagram;

[0023] Figure 4 yes Figure 2 A diagram from another direction.

[0024] In the diagram: 10. Moving template 11. Fixed template 12. Core 13. Injection tube 14. Injection channel 15. Runner 16. Ejection structure 17. Large spherical body 18. Small spherical body 19. Ear-shaped body 20. Straight ejector rod 21. Ejection cavity 22. Ejection plate 23. Guide rod 24. Spring 25. Directional rod 26. Abutment block 27. Base plate 27. Connecting hole 28. Cooling hole 29. Through hole 30. Positioning hole 31. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0026] This utility model provides an injection mold for Christmas decorative plastic crafts, combined with Figures 1-4 As shown, the mold includes a moving mold plate 10 and a fixed mold plate 11. The moving mold plate 10 is provided with a plurality of cores 12. The fixed mold plate 11 is provided with an injection tube 13. The moving mold plate 10 is provided with an injection channel 14 that communicates with the injection tube 13. The injection channel 14 is connected to a plurality of runners 15 that correspond one-to-one with the cores 12. When the mold is closed, a plurality of molding cavities are formed between the moving mold plate, the fixed mold plate 11 and the cores 12. The runners 15 communicate with the corresponding molding cavities. The moving mold plate 10 is provided with an ejector structure 16.

[0027] In the embodiment, several forming cavities formed between the movable die plate, the fixed die plate 11 and the core 12 are used for forming plastic parts for Christmas decoration, injection liquid is injected into the forming cavities through the injection channel 14 and the distribution channels 15, and multiple plastic parts can be formed by one injection molding, so that the production efficiency is high. After molding and cooling, the plastic parts are ejected through the ejection structure 16.

[0028] The core 12 comprises a large ball-shaped body 17, a small ball-shaped body 18 and two ear-shaped bodies 19 connected in sequence, the ejection structure 16 comprises several straight ejection rods 20, the connection between the large ball-shaped body 17 and the small ball-shaped body 18 is provided with a straight ejection rod 20, and the ear-shaped bodies 19 are provided with a straight ejection rod 20.

[0029] In the embodiment, since the connection between the large ball-shaped body 17 and the small ball-shaped body 18 is provided with an inwardly extending groove and the ear-shaped bodies 19 are elongated, the plastic part at the connection between the large ball-shaped body 17 and the small ball-shaped body 18 and the plastic part at the ear-shaped bodies 19 are the most fragile during the demolding process. The distribution of the several straight ejection rods 20 at these positions facilitates smooth demolding and prevents the plastic part from being unqualified due to distortion.

[0030] The injection channel 14 and the several distribution channels 15 are provided with the straight ejection rods 20.

[0031] In the embodiment, after the injection is completed, the injection channel 14 and the distribution channels 15 will be left with excess injection liquid and cooling forming waste. During the ejection process, the waste is ejected together with the plastic part, so that the waste is prevented from being left in the mold and needing to be cleaned again, thereby improving the work efficiency.

[0032] The ejection structure 16 further comprises an ejection cavity 21 located below the movable die plate 10, the ejection cavity 21 is slidably provided with an ejection plate 22, the several straight ejection rods 20 are arranged on the ejection plate 22, the ejection cavity 21 is provided with a guide rod 23, and the ejection plate 22 is slidably connected with the guide rod 23.

[0033] In the embodiment, the ejection plate 22 is connected with a linear driver, and the guide rod 23 can limit the moving direction of the ejection plate 22. Since the number of the straight ejection rods 20 is large, and the size of the straight ejection rods 20 is small in the embodiment due to the small shape of the plastic part, if the moving direction of the ejection plate 22 deviates, the straight ejection rods 20 are easily bent.

[0034] The guide rod 23 is externally sleeved with a spring 24, the spring 24 is in a compressed state, and the two ends of the spring 24 are respectively connected with the movable die plate 10 and the ejection plate 22.

[0035] In the present embodiment, during the ejection process, the movement of the ejector plate 22 will squeeze the spring 24, which is further compressed and forms a pushing force. When the ejection is completed, the linear drive unloads the force, and the pushing force enables the ejector plate 22 to quickly return to the original position.

[0036] The two sides of the ejector plate 22 are respectively provided with a guide rod 25 arranged on the movable die plate 10, and the ejector plate 22 can slide against the two guide rods 25 when moving.

[0037] In the present embodiment, the guide rod 25 can further limit the moving direction of the ejector plate 22.

[0038] The two sides of the ejector plate 22 are respectively provided with a guide rod 25 arranged on the movable die plate 10, and the ejector plate 22 can slide against the two guide rods 25 when moving.

[0039] In the present embodiment, the inclined surface has a guiding effect and can prevent the collision caused by the misalignment between the movement of the ejector plate 22 and the guide rod 25 at the beginning.

[0040] The side of the movable die plate 10 away from the fixed die plate 11 is provided with a bottom plate 27, and the bottom plate 27 is provided with a plurality of connecting holes 28 communicating with the ejection cavity 21.

[0041] In the present embodiment, the linear drive is an external structure, and the output shaft is connected to the ejector plate 22 through the connecting hole 28.

[0042] The movable die plate 10 is provided with a plurality of cooling holes 29, and the movable die plate 10 is provided with a core bottom plate 27, and a plurality of cores 12 are arranged on the core bottom plate 27. The core bottom plate 27 is provided with a through hole 30, and the cooling hole 29 communicates with the through hole 30.

[0043] In the present embodiment, the cooling liquid enters the through hole 30 in the core bottom plate 27 through the cooling hole 29, and the plastic parts can be quickly cooled and formed during the cooling and forming process.

[0044] The movable die plate 10 is provided with a positioning hole 31 at the four corners, and the fixed die plate 11 is provided with a positioning column corresponding to the positioning hole 31.

[0045] In the present embodiment, the positioning column extends into the corresponding positioning hole 31 during the clamping, and prevents the movement of the fixed die plate 11 and the movable die plate 10 from causing the failure of the plastic part forming under high-pressure injection molding.

[0046] The utility model discloses a working principle is: injection liquid passes through injection channel 14 and shunt 15 is injected into several forming cavities simultaneously, after injection is completed, cooling liquid passes through cooling hole 29 and enters the through hole 30 in the core bottom plate 27, in the cooling forming process, can cool the forming of plastic parts quickly, then the movable platen 10 is separated with the fixed platen 11, and the linear driver of external connection works and drives the ejection plate 22 to take out the plastic parts and the waste material in injection channel 14 and shunt 15 with straight top rod 20.

[0047] The specific embodiments described herein are merely illustrative of the present utility model. Those skilled in the art of the present utility model can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

[0048] Although the movable platen 10, the fixed platen 11, the core 12, the injection tube 13, the injection channel 14, the shunt 15, the ejection structure 16, the big ball type body 17, the small ball type body 18, the ear shape 19, the straight top rod 20, the ejection cavity 21, the ejection plate 22, the guide rod 23, the spring 24, the trend rod 25, the block 26, the bottom plate 27, the connecting hole 28, the cooling hole 29, the through hole 30, the positioning hole 31 and the like are used more in this paper, using these terms is only for more conveniently describing and explaining the essence of the present utility model; explaining them as any kind of additional limitation is contrary to the spirit of the present utility model.

Claims

1. A plastic craft injection mold for Christmas decoration, comprising a moving mold plate (10) and a fixed mold plate (11), characterized in that, The movable mold plate (10) is provided with a plurality of cores (12), the fixed mold plate (11) is provided with an injection tube (13), the movable mold plate (10) is provided with an injection channel (14) in communication with the injection tube (13), the injection channel (14) is in communication with a plurality of distribution channels (15) corresponding to the cores (12) one by one, a plurality of forming cavities are formed between the movable mold plate, the fixed mold plate (11) and the cores (12) when the mold is closed, the distribution channel (15) is in communication with the corresponding forming cavity, and the movable mold plate (10) is provided with an ejection structure (16).

2. The plastic Christmas decoration figurine injection mold according to claim 1, wherein, The core (12) comprises a large ball-shaped body (17), a small ball-shaped body (18) and two ear-shaped bodies (19) connected in sequence, the ejection structure (16) comprises a plurality of straight ejector rods (20), the large ball-shaped body (17) and the small ball-shaped body (18) are provided with a straight ejector rod (20) at the connection position, and the ear-shaped bodies (19) are provided with a straight ejector rod (20) at the position.

3. The plastic Christmas decoration figurine injection mold of claim 2, wherein, The injection channel (14) and the plurality of distribution channels (15) are provided with straight ejector rods (20).

4. The plastic Christmas decoration figurine injection mold of claim 2, wherein, The ejection structure (16) further comprises an ejection cavity (21) located below the movable mold plate (10), the ejection cavity (21) is slidably provided with an ejection plate (22), a plurality of straight ejector rods (20) are arranged on the ejection plate (22), the ejection cavity (21) is provided with a guide rod (23), and the ejection plate (22) is slidably connected with the guide rod (23).

5. The plastic Christmas decoration figurine injection mold of claim 4, wherein, The guide rod (23) is sleeved with a spring (24) on the outer side, the spring (24) is in a compressed state, and the two ends of the spring (24) are connected with the movable mold plate (10) and the ejection plate (22) respectively.

6. The plastic Christmas decoration figurine injection mold of claim 4, wherein, The ejection plate (22) is provided with a tendency rod (25) on each side and arranged on the movable mold plate (10), and the ejection plate (22) can slide against the two tendency rods (25) at the same time when moving.

7. The plastic Christmas decoration figurine injection mold of claim 6, wherein, The ejection plate (22) is provided with a stop block (26) corresponding to the tendency rod (25) on each side, and the outer surfaces of the stop block (26) and the tendency rod (25) opposite to each other are in a beveled shape.

8. The plastic Christmas decoration figurine injection mold of claim 4, wherein, The movable mold plate (10) is provided with a bottom plate (27) away from the fixed mold plate (11), and the bottom plate (27) is provided with a plurality of connecting holes (28) in communication with the ejection cavities (21).

9. The plastic Christmas decoration figurine injection mold of claim 1, wherein, The movable mold plate (10) is provided with a plurality of cooling holes (29), the movable mold plate (10) is provided with a core bottom plate (27), a plurality of cores (12) are arranged on the core bottom plate (27), the core bottom plate (27) is provided with a through hole (30), and the cooling holes (29) are in communication with the through hole (30).

10. The plastic Christmas decoration figurine injection mold of claim 1, wherein, The movable mold plate (10) is provided with a positioning hole (31) at each of the four corners, and the fixed mold plate (11) is provided with a positioning column corresponding to the positioning hole (31).

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