CN222946104U - Injection mold for weighting block of dustbin cover - Google Patents
Injection mold for weighting block of dustbin cover Download PDFInfo
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- CN222946104U CN222946104U CN202421697352.2U CN202421697352U CN222946104U CN 222946104 U CN222946104 U CN 222946104U CN 202421697352 U CN202421697352 U CN 202421697352U CN 222946104 U CN222946104 U CN 222946104U
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Abstract
The utility model belongs to the technical field of molds, and particularly relates to an injection mold for a weighting block of a dustbin cover. The utility model comprises a lower molding die for molding the weight increasing block of the dustbin cover and an upper molding die for molding the weight increasing block of the dustbin cover. According to the weight increasing block bottom side groove forming part, the weight increasing block middle groove forming part and the bottom side step forming part, the groove structure of the bottom side of the plastic part, the bottom middle groove structure and the bottom side step structure can be synchronously formed, the weight increasing block hole groove forming ejection assembly is used for synchronously forming the weight increasing block hole groove structure, secondary punching processing and subsequent finish machining are not needed, the production cost is greatly reduced, the processing procedures are reduced, meanwhile, after injection molding and die sinking are completed, the formed plastic part can be ejected through the weight increasing block hole groove forming ejection assembly, the occupied area of the ejection structure is saved, and the in-mold space can be better utilized.
Description
Technical Field
The utility model belongs to the technical field of molds, and relates to an injection mold for a weighting block of a dustbin cover.
Background
At present, the dustbin cover on the market generally adopts a turnover structure, and the main material is plastic, so that the weight of the dustbin cover is increased due to the fact that the plastic material is light in weight, and the dustbin cover is prevented from being blown open by wind. The existing dustbin cover weight-increasing block is generally subjected to injection molding through an injection mold, and is difficult to synchronously mold a hole groove structure, a groove structure at the bottom side, a groove structure at the middle part of the bottom and a step structure at the bottom side of the weight-increasing block during injection molding, so that subsequent secondary punching processing and finish machining are needed, the production cost is high, and the processing procedures are multiple. Therefore, the design of the injection mold for the weighting block of the dustbin cover, which can overcome the defects, is urgently needed.
In order to overcome the defects of the prior art, various solutions are provided through continuous exploration, for example, china patent discloses an injection mold [ application number: 202123447508.0] of a dustbin cover with a handle, the injection mold comprises a mold frame, a fixed mold and a movable mold, the bottom of the movable mold is provided with a square male mold, four corners of the square male mold are round corners, four sides of the square male mold are arc edges, the top of the fixed mold is provided with a square mold cavity matched with the square male mold in shape, when the movable mold is attached to the fixed mold, an injection molding cavity for injection molding of the dustbin cover body is formed between the square male mold and the square mold cavity, a pouring opening is further arranged on the fixed mold, a first oblique guide buckle and a second oblique guide buckle are further arranged on the movable mold, oblique openings for the first oblique guide buckle and the second oblique guide buckle to move are further arranged on the movable mold, and a slide mechanism is further arranged on the movable mold.
Disclosure of Invention
The utility model aims to solve the problems and provides an injection mold for a weighting block of a dustbin cover.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
The utility model provides a garbage bin bung weight increase piece injection mold, includes garbage bin bung weight increase piece shaping lower mould and garbage bin bung weight increase piece shaping upper mould, be equipped with the hole of moulding plastics in the garbage bin bung weight increase piece shaping upper mould, be equipped with a plurality of garbage bin bung weight increase piece shaping upper cavities in the garbage bin bung weight increase piece shaping lower mould, be equipped with a plurality of garbage bin bung weight increase piece shaping lower cavities in the garbage bin bung weight increase piece shaping lower cavity, garbage bin bung weight increase piece shaping upper cavity is located the garbage bin bung weight increase piece shaping lower cavity directly over, but be equipped with the weight increase piece hole groove shaping ejecting subassembly of reciprocating rectilinear motion along vertical direction in the garbage bin bung weight increase piece shaping lower cavity, garbage bin bung weight increase piece middle part recess shaping portion and bottom side step shaping portion still be equipped with weight increase piece bottom side recess shaping portion, weight increase piece middle part and bottom step shaping portion three are crisscross to be set up.
In the garbage can cover weight increasing block injection mold, the weight increasing block hole groove forming ejection assembly comprises a weight increasing block hole groove forming rod arranged in the garbage can cover weight increasing block forming lower cavity, an ejection connecting piece is arranged at the bottom of the weight increasing block hole groove forming rod, and the ejection connecting piece penetrates through the garbage can cover weight increasing block forming lower mold.
In the garbage bin bung weighting block injection mold, the ejection connecting piece comprises an ejection connecting rod arranged at the bottom of the weighting block hole groove forming rod, the ejection connecting rod penetrates through the garbage bin bung weighting block forming lower mold, and the cross section area of the ejection connecting rod is larger than that of the weighting block hole groove forming rod.
In the garbage bin bung weighting block injection mold, the bottom of the ejection connecting rod is provided with the limiting anti-overstock base, and the cross section area of the limiting anti-overstock base is larger than that of the ejection connecting rod.
In the garbage can cover weight-increasing block injection mold, the weight-increasing block bottom side groove forming part comprises two bottom side groove forming protrusions arranged in the garbage can cover weight-increasing block forming lower cavity, and the bottom side groove forming protrusions and the garbage can cover weight-increasing block forming lower mold are integrally formed.
In the garbage can cover weight increasing block injection mold, the weight increasing block middle groove forming part comprises a middle groove forming convex plate arranged in the garbage can cover weight increasing block forming lower cavity, the middle groove forming convex plate and the garbage can cover weight increasing block forming lower mold are integrally formed, and the middle groove forming convex plate and the bottom side groove forming convex are arranged in a staggered mode.
In the garbage can cover weight-increasing block injection mold, the bottom side step forming part comprises a step forming convex strip arranged in the garbage can cover weight-increasing block forming lower cavity, and the step forming convex strip and the garbage can cover weight-increasing block forming lower mold are integrally formed.
In the garbage can cover weight increasing block injection mold, an injection molding split part is arranged in the garbage can cover weight increasing block molding lower mold, and the injection molding split part corresponds to the position of the garbage can cover weight increasing block molding lower cavity.
In the garbage can cover weight block injection mold, the injection molding split part comprises an injection molding split runner arranged in a garbage can cover weight block molding lower mold, and the injection molding split runner is connected with the injection molding hole.
In the garbage can cover weight-increasing block injection mold, the garbage can cover weight-increasing block forming lower mold is provided with a plurality of horizontal cooling water channels penetrating through the garbage can cover weight-increasing block forming lower mold.
Compared with the prior art, the utility model has the advantages that:
1. In the injection molding process, the lower molding die of the weighting block of the garbage can cover and the upper molding die of the weighting block of the garbage can cover are mutually close to each other, so that the weighting block hole forming upper cavity of the garbage can cover and the weighting block forming lower cavity of the garbage can cover are mutually attached to form a complete cavity, molten materials are injected through injection molding holes, the weighting block forming upper cavity of the garbage can cover is used for forming an upper structure of a plastic part, the weighting block forming lower molding die of the garbage can cover is used for forming a lower structure of the plastic part, the groove forming part at the bottom side of the weighting block, the groove forming part at the middle of the weighting block and the step forming part at the bottom side can synchronously form the groove structure at the bottom side of the plastic part, the groove structure at the middle of the weighting block and the step structure at the bottom side, secondary punching processing and subsequent finish processing are not needed, the production cost is greatly reduced, the processing procedure is reduced, and after injection molding and die opening is completed, the molded plastic part can be ejected through the weighting block forming ejection assembly, the occupied area of the ejection structure is saved, and the space in the mold can be better utilized.
2. In the process of upward movement of the ejection connecting rod, the limiting anti-over-position base plays a role in limiting and preventing falling, and the ejection connecting rod is prevented from falling off from the lower die for forming the weighting block of the dustbin cover.
Additional advantages, objects, and features of the utility model will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the utility model.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic structural view of a lower die for forming a weighting block of a dustbin cover.
Fig. 3 is a schematic structural view of a weight-increasing mass slot-forming ejector assembly.
Fig. 4 is a schematic structural view of a weight-increasing molding upper mold of a dustbin cover.
In the figure, a garbage can cover weight increasing block forming lower die 1, a garbage can cover weight increasing block forming upper die 2, an injection molding hole 3, a garbage can cover weight increasing block forming upper cavity 4, a garbage can cover weight increasing block forming lower cavity 5, a weight increasing block hole slot forming ejection assembly 6, a weight increasing block bottom side groove forming part 7, a weight increasing block middle part groove forming part 8, a bottom side step forming part 9, a weight increasing block hole slot forming rod 10, an ejection connecting piece 11, an ejection connecting rod 12, a limiting anti-over-position base 13, a bottom side groove forming bulge 14, a middle groove forming convex plate 15, a step forming convex strip 16, an injection molding diversion part 17, an injection molding diversion channel 18 and a horizontal cooling water channel 19 are shown.
Detailed Description
The utility model is further described below with reference to the accompanying drawings.
As shown in fig. 1-4, the injection mold for the weight increasing block of the garbage can cover comprises a lower mold 1 for molding the weight increasing block of the garbage can cover and an upper mold 2 for molding the weight increasing block of the garbage can cover, injection molding holes 3 are formed in the upper mold 2 for molding the weight increasing block of the garbage can cover, a plurality of upper cavities 4 for molding the weight increasing block of the garbage can cover are formed in the upper mold 2 for molding the weight increasing block of the garbage can cover, a plurality of lower cavities 5 for molding the weight increasing block of the garbage can cover are formed in the lower mold 1 for molding the weight increasing block of the garbage can cover, the upper cavities 4 for molding the weight increasing block of the garbage can cover are positioned right above the lower cavities 5 for molding the weight increasing block of the garbage can cover, weight increasing block hole slot molding ejection assemblies 6 capable of reciprocating and linearly moving along the vertical direction are arranged in the lower cavities 5 for molding the weight increasing block holes 6 of the garbage can cover, a bottom side slot molding part 7, a middle slot molding part 8 for molding the weight increasing block and a bottom step molding part 9 are also arranged in the lower cavity 5 for molding the weight increasing block of the garbage can cover, and the middle slot molding part 8 and the step molding part 9 for molding the bottom step are arranged alternately.
In this embodiment, in the injection molding process, the lower molding die 1 for molding the weight increasing block of the garbage can cover and the upper molding die 2 for molding the weight increasing block of the garbage can cover are close to each other, so that the upper molding cavity 4 for molding the weight increasing block of the garbage can cover and the lower molding cavity 5 for molding the weight increasing block of the garbage can cover are attached to each other to form a complete cavity, molten materials are injected through the injection molding holes 3, the upper molding cavity 4 for molding the upper structure of the molded part of the garbage can cover is used for molding the lower molding structure of the molded part of the weight increasing block molding lower molding die 1 of the garbage can cover, the groove structures of the bottom side groove molding part 7, the middle groove molding part 8 of the weight increasing block and the step molding part 9 of the bottom side can be synchronously molded, the groove structures of the bottom middle part and the step structures of the bottom side, the block hole groove molding ejection assembly 6 is not required to be subjected to secondary punching processing and subsequent finishing processing, the production cost is greatly reduced, and after the injection molding and the die opening is completed, the molded part can be ejected through the weight increasing groove molding assembly 6, so that the occupied area of the ejection structure is better and the inner molding space is better.
As shown in fig. 2 and 3, the weight increasing block hole groove forming ejection assembly 6 comprises a weight increasing block hole groove forming rod 10 arranged in the weight increasing block forming lower cavity 5 of the dustbin cover, an ejection connecting piece 11 is arranged at the bottom of the weight increasing block hole groove forming rod 10, and the ejection connecting piece 11 penetrates through the weight increasing block forming lower die 1 of the dustbin cover.
Specifically speaking, in the injection molding process, the weight-increasing block hole groove forming rod 10 can synchronously form a weight-increasing block hole groove structure, secondary punching processing and subsequent finish processing are not needed, the production cost is greatly reduced, the processing procedure is reduced, after injection molding and die sinking are finished, the weight-increasing block hole groove forming rod 10 is driven to move upwards through the ejection connecting piece 11, molded plastic parts can be ejected, the occupied area of an ejection structure is saved, and the space in a die can be better utilized.
As shown in fig. 2 and 3, the ejection connecting piece 11 includes an ejection connecting rod 12 disposed at the bottom of the molding rod 10 of the weight increasing block hole slot, the ejection connecting rod 12 penetrates through the molding lower mold 1 of the weight increasing block of the dustbin cover, and the cross-sectional area of the ejection connecting rod 12 is larger than the cross-sectional area of the molding rod 10 of the weight increasing block hole slot.
In this embodiment, after injection molding and die opening are completed, the weight increasing block hole groove forming rod 10 is driven to move upwards by the ejection connecting rod 12, so that molded plastic parts can be ejected, the occupied area of an ejection structure is saved, the space in the mold can be better utilized, the cross section area of the ejection connecting rod 12 is larger than the cross section area of the weight increasing block hole groove forming rod 10, and the weight increasing block hole groove structure cannot be influenced.
The bottom of the ejection connecting rod 12 is provided with a limiting anti-over-position base 13, and the cross-sectional area of the limiting anti-over-position base 13 is larger than that of the ejection connecting rod 12.
In the embodiment, in the process of upward movement of the ejection connecting rod 12, the limiting anti-over-position base 13 plays a role in limiting and preventing falling, so that the ejection connecting rod 12 is prevented from falling off from the lower die 1 for forming the weighting block of the dustbin cover.
Referring to fig. 2, the weight-increasing block bottom-side groove forming part 7 includes two bottom-side groove forming protrusions 14 disposed in the lower cavity 5 of the weight-increasing block forming body of the dustbin cover, and the bottom-side groove forming protrusions 14 and the lower die 1 of the weight-increasing block forming body of the dustbin cover are integrally formed.
In this embodiment, the two bottom side groove forming protrusions 14 can form the groove structure of the bottom side of the plastic part synchronously during injection molding, and secondary processing is not needed.
The weight block middle groove forming part 8 comprises a middle groove forming convex plate 15 arranged in the weight block forming lower cavity 5 of the dustbin barrel cover, the middle groove forming convex plate 15 and the weight block forming lower die 1 of the dustbin barrel cover are integrally formed, and the middle groove forming convex plate 15 and the bottom side groove forming convex 14 are arranged in a staggered mode.
In this embodiment, the middle groove forming convex plate 15 can synchronously form the bottom middle groove structure of the plastic part during injection molding, and secondary processing is not needed.
The bottom side step forming part 9 comprises a step forming raised strip 16 arranged in the garbage can cover weighting block forming lower cavity 5, and the step forming raised strip 16 and the garbage can cover weighting block forming lower die 1 are integrally formed.
In this embodiment, the step molding ribs 16 can simultaneously mold the bottom step structure of the molded article during injection molding, and secondary processing is not required.
As shown in fig. 2, an injection molding split part 17 is arranged in the lower die 1 for forming the weighting block of the dustbin cover, and the injection molding split part 17 corresponds to the position of the lower cavity 5 for forming the weighting block of the dustbin cover.
In this embodiment, during injection molding, the molten material is injected through the injection molding hole 3, and is split by the injection molding split part 17, so that the injection molding rate is accelerated.
Referring to fig. 1 and 2, the injection diversion portion 17 includes an injection diversion channel 18 disposed in the lower mold 1 for molding the weighting block of the dustbin cover, and the injection diversion channel 18 is connected with the injection hole 3.
In this embodiment, during injection molding, the molten material is injected through the injection molding hole 3, and then is split through the injection molding split runner 18, so that the injection molding rate is accelerated.
Referring to fig. 1, the lower mold 1 for forming the weighting block of the dustbin cover is provided with a plurality of horizontal cooling water channels 19 penetrating through the lower mold 1 for forming the weighting block of the dustbin cover.
In this embodiment, after the injection molding is completed, cooling water is introduced into the horizontal cooling water channel 19 to perform water cooling.
The working principle of the utility model is as follows:
In the injection molding process, the garbage can lid weight increasing block forming lower die 1 and the garbage can lid weight increasing block forming upper die 2 are mutually close to each other, so that the garbage can lid weight increasing block forming upper cavity 4 and the garbage can lid weight increasing block forming lower cavity 5 are mutually attached to form a complete cavity, molten materials are injected through the injection molding holes 3, and are split through the injection molding flow dividing channels 18, the injection molding speed is quickened, the garbage can lid weight increasing block forming upper cavity 4 is used for forming an upper structure of a plastic part, the garbage can lid weight increasing block forming lower die 1 is used for forming a lower structure of the plastic part, the weight increasing block hole groove forming rod 10 can synchronously form the weight increasing block hole groove structure, secondary punching processing and subsequent finishing are not needed, the production cost is greatly reduced, the processing procedure is reduced, after the injection molding die opening is completed, the weight increasing block hole groove forming rod 10 is driven to move upwards through the ejection connecting rod 12, the formed plastic part is ejected, the occupied area of the ejection structure is saved, the inner space of the die can be better utilized, the cross section area of the ejection connecting rod 12 is larger than the weight increasing block hole groove forming rod 10, the weight increasing block structure cannot be influenced, the weight increasing block 12 is prevented from being separated from the bottom of the garbage can be prevented from the bottom through the die 1, the weight increasing block forming hole forming groove 12 is prevented from being separated from the bottom through the limiting and the bottom 13, the position of the garbage can be prevented from being separated from the bottom by the bottom through the die 1
The groove structure of the bottom side of the plastic part can be synchronously formed by the two bottom side groove forming bulges 14 during injection molding, the bottom middle groove structure of the plastic part can be synchronously formed by the middle groove forming convex plate 15, the bottom side step structure of the plastic part can be synchronously formed by the step forming convex strips 16, secondary processing is not needed, and after injection molding is completed, cooling water is introduced into the horizontal cooling water channel 19 for water cooling.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model.
Although terms such as the garbage can lid weight increasing block forming lower die 1, the garbage can lid weight increasing block forming upper die 2, the injection molding hole 3, the garbage can lid weight increasing block forming upper cavity 4, the garbage can lid weight increasing block forming lower cavity 5, the weight increasing block hole groove forming ejection assembly 6, the weight increasing block bottom side groove forming part 7, the weight increasing block middle groove forming part 8, the bottom side step forming part 9, the weight increasing block hole groove forming rod 10, the ejection connecting piece 11, the ejection connecting rod 12, the limit anti-over position base 13, the bottom side groove forming protrusion 14, the middle groove forming protrusion plate 15, the step forming protrusion 16, the injection molding diversion part 17, the injection molding diversion channel 18, the horizontal cooling water channel 19 and the like are used more herein, the possibility of using other terms is not excluded. These terms are only used to more conveniently describe and explain the nature of the utility model and should be construed in a manner consistent with their spirit and scope.
Claims (10)
1. The utility model provides a garbage bin bung weight-increasing piece injection mold, includes garbage bin bung weight-increasing piece shaping lower mould (1) and garbage bin bung weight-increasing piece shaping upper mould (2), a serial communication port, be equipped with injection molding hole (3) in garbage bin bung weight-increasing piece shaping upper mould (2), be equipped with a plurality of garbage bin bung weight-increasing piece shaping upper chamber (4) in garbage bin bung weight-increasing piece shaping lower mould (1), be equipped with a plurality of garbage bin bung weight-increasing piece shaping lower chamber (5) in garbage bin bung weight-increasing piece shaping lower mould (1), garbage bin bung weight-increasing piece shaping upper chamber (4) are located garbage bin bung weight-increasing piece shaping lower chamber (5) directly over, be equipped with weight-increasing piece hole groove shaping subassembly (6) that can follow vertical direction reciprocal rectilinear motion in garbage bin bung piece shaping lower chamber (5), still be equipped with weight-increasing piece bottom side recess shaping portion (7), weight-increasing piece middle part recess shaping portion (8) and bottom side step shaping portion (9), weight-increasing piece bottom side recess shaping portion (7) weight-increasing piece middle part and weight-increasing piece (8) step shaping step portion (9) are crisscross setting three.
2. The injection mold for the weight increasing block of the dustbin cover according to claim 1, wherein the weight increasing block hole groove forming ejection assembly (6) comprises a weight increasing block hole groove forming rod (10) arranged in a weight increasing block forming lower cavity (5) of the dustbin cover, an ejection connecting piece (11) is arranged at the bottom of the weight increasing block hole groove forming rod (10), and the ejection connecting piece (11) penetrates through the weight increasing block forming lower mold (1) of the dustbin cover.
3. The injection mold for the weight increasing block of the dustbin cover according to claim 2, wherein the ejection connecting piece (11) comprises an ejection connecting rod (12) arranged at the bottom of the weight increasing block hole groove forming rod (10), the ejection connecting rod (12) penetrates through the weight increasing block forming lower mold (1) of the dustbin cover, and the cross section area of the ejection connecting rod (12) is larger than the cross section area of the weight increasing block hole groove forming rod (10).
4. The injection mold for the weight-increasing block of the dustbin cover according to claim 3, wherein a limiting anti-over-position base (13) is arranged at the bottom of the ejection connecting rod (12), and the cross-sectional area of the limiting anti-over-position base (13) is larger than that of the ejection connecting rod (12).
5. The injection mold for the weighting block of the dustbin cover according to claim 4, wherein the weighting block bottom side groove forming part (7) comprises two bottom side groove forming protrusions (14) arranged in the dustbin cover weighting block forming lower cavity (5), and the bottom side groove forming protrusions (14) and the dustbin cover weighting block forming lower mold (1) are integrally formed.
6. The injection mold for the weighting block of the dustbin cover according to claim 5, wherein the weighting block middle groove forming part (8) comprises a middle groove forming convex plate (15) arranged in the dustbin cover weighting block forming lower cavity (5), the middle groove forming convex plate (15) and the dustbin cover weighting block forming lower mold (1) are integrally formed, and the middle groove forming convex plate (15) and the bottom groove forming convex (14) are arranged in a staggered mode.
7. The injection mold for the weight increasing block of the dustbin cover according to claim 6, wherein the bottom side step forming part (9) comprises a step forming raised line (16) arranged in the weight increasing block forming lower cavity (5) of the dustbin cover, and the step forming raised line (16) and the weight increasing block forming lower mold (1) of the dustbin cover are integrally formed.
8. The injection mold for the weight increasing block of the dustbin cover according to claim 1, wherein an injection molding split part (17) is arranged in the lower mold (1) for molding the weight increasing block of the dustbin cover, and the injection molding split part (17) corresponds to the position of the lower cavity (5) for molding the weight increasing block of the dustbin cover.
9. The dustbin cover weight increasing block injection mold according to claim 8, wherein the injection molding diversion part (17) comprises an injection molding diversion channel (18) arranged in the dustbin cover weight increasing block molding lower mold (1), and the injection molding diversion channel (18) is connected with the injection molding hole (3).
10. The injection mold for the weight increasing block of the dustbin cover according to claim 9, wherein the lower mold (1) for molding the weight increasing block of the dustbin cover is provided with a plurality of horizontal cooling water channels (19) penetrating through the lower mold (1) for molding the weight increasing block of the dustbin cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421697352.2U CN222946104U (en) | 2024-07-17 | 2024-07-17 | Injection mold for weighting block of dustbin cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421697352.2U CN222946104U (en) | 2024-07-17 | 2024-07-17 | Injection mold for weighting block of dustbin cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222946104U true CN222946104U (en) | 2025-06-06 |
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ID=95892522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421697352.2U Active CN222946104U (en) | 2024-07-17 | 2024-07-17 | Injection mold for weighting block of dustbin cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222946104U (en) |
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2024
- 2024-07-17 CN CN202421697352.2U patent/CN222946104U/en active Active
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