Large pitched roof inner pulling mechanism for automobile rear bumper injection mold

By introducing a large inclined ejector mechanism into the injection mold of the rear bumper of an automobile, and using a pneumatic cylinder to drive the core-pulling structure to achieve the inclined ejection of the mold, the problem of low demolding efficiency of traditional molds is solved, thereby improving production efficiency and product quality.

CN224012878UActive Publication Date: 2026-03-20ZHEJIANG SANLEI MOULD & PLASTIC CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2026-03-20

AI Technical Summary

Technical Problem

Traditional molds have low demolding efficiency during injection molding, which can easily cause the molded items to scratch and affect production efficiency.

Method used

The large inclined ejection mechanism for automotive rear bumper injection molds is adopted, including a support mechanism, pneumatic cylinder, core-pulling structure and U-shaped groove surface, etc. The core-pulling structure is driven by the pneumatic cylinder to achieve the inclined ejection of the mold, thereby improving the demolding efficiency.

Benefits of technology

It improves the demolding efficiency of molds, reduces the burden of manpower and material resources, and meets customers' strict requirements for product surface quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224012878U_ABST
    Figure CN224012878U_ABST
Patent Text Reader

Abstract

The utility model discloses a large pitched roof inner pulling mechanism for an automobile rear bumper injection mold, which comprises a supporting mechanism, the supporting mechanism comprises a fitting bottom plate supported on the ground, an assembly plate for pushing is arranged in the middle of the top end of the fitting bottom plate, and a fitting top plate for supporting is mounted at the top end of the assembly plate. A side wall connecting block is arranged in the middle of the top end of the attaching top plate, a connecting vertical rod is installed in the middle of the bottom end of the side wall connecting block, and the attaching bottom plate, the attaching bottom plate and the corresponding upper top plate face are assembled, and when demolding is needed in the later period through a core pulling structure and a U-shaped groove face, a pneumatic pressing cylinder is powered on to drive the position of the core pulling structure to be changed; and manual demolding is replaced by the pneumatic pressure cylinder, so that manpower and material resources are reduced, and the demolding efficiency is high.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mould processing, concretely is big oblique ejection inner extraction mechanism for automobile rear bumper injection mould. BACKGROUND

[0002] Injection molding is also called injection molding, which is a kind of injection molding method. The advantages of injection molding method are fast production speed, high efficiency, automatic operation, various colors and shapes, and accurate product size. The product is easy to update, can form complex parts, and is suitable for mass production and complex product forming processing field.

[0003] Among them, through the retrieval found that the application number is: CN201921717836.8, a kind of stable injection mould, its content is: the utility model belongs to the technical field of injection mould, especially a kind of stable injection mould, including mould body, mould body includes upper mould and lower mould, still includes bottom plate, lower mould bottom surface is fixed with mounting block, bottom plate top surface is equipped with installation slot, installation slot is equipped with two symmetrical distribution clamping blocks, and drive assembly is installed in installation slot;Left side plate is installed on the top surface of the bottom plate, the movable top plate is movably installed on the surface of the left side plate, and the hydraulic cylinder is installed on the surface of the left side plate;The injection mould of the utility model, after the upper mould and lower mould are combined, the stable extrusion plate can be driven to move down by hydraulic cylinder, the upper mould is further stabilized, the stability of the upper mould and lower mould is ensured, and the quality of the plastic part is ensured;Manual adjustment assembly can be used to fine tune the position of the upper mould after combining, to ensure the accuracy of the upper mould and lower mould combination;Through the mounting block and the movable clamping block, the lower mould is fixed, and the disassembly is convenient.

[0004] The traditional mould usually has poor demolding efficiency of injection mould in the process of injection molding, which can easily cause low efficiency of injection molding and disassembly of mould, and can easily cause scratching of mould forming articles. Utility model content

[0005] The utility model aims at providing big oblique ejection inner extraction mechanism for automobile rear bumper injection mould, to solve the problems in the above background.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: automobile rear bumper injection mould is with big inclined top inner -type mechanism, including support mechanism, the support mechanism includes with the ground support and is pasted bottom plate, the top middle part of pasted bottom plate is equipped with the assembly board for pushing, the top of assembly board is equipped with pasted top plate for supporting, the top middle part of pasted top plate is equipped with side wall connecting block, the bottom middle part of side wall connecting block is equipped with the rod body top of connecting vertical rod and installs upper top plate, the top of upper top plate is equipped with shaping support, the side wall of shaping support is equipped with lower shaping mould, the surface of lower shaping mould is sequentially equipped with a plurality of connecting blocks,

[0007] The top middle part of the lower shaping mold is provided with a conveying communication pipe, a pneumatic pressure cylinder is installed in the middle part of the conveying communication pipe, and the extension end of the pneumatic pressure cylinder corresponds to the top end position of the conveying communication pipe.

[0008] The end of the conveying communication pipe is provided with a core pulling mechanism.

[0009] The core pulling mechanism includes an automobile insurance shaping mold core installed in the top middle part of the conveying communication pipe, an insurance bar shaping head is installed at the top of the automobile insurance shaping mold core, a large cap bottom film is installed on the bottom surface of the automobile insurance shaping mold core, and a U-shaped groove hinge is further provided on the bottom side of the large cap bottom film.

[0010] The U-shaped groove hinge includes a top middle part of a I-shaped connecting head installed on the bottom side of the large cap bottom film, an inclined surface core pulling head is installed on the top surface of the connecting groove, and an adjusting groove is installed on the bottom surface of the inclined surface core pulling head.

[0011] As a preferred scheme of the utility model: the middle part of the pneumatic pressure cylinder is provided with a communication conduit, a lifting rod for communication is installed in the top middle part of the communication conduit, and a connecting piece for locking is sequentially installed in the top middle part of the lifting rod.

[0012] As a preferred scheme of the utility model: the top of the lower shaping mold is provided with a clamping block on both sides, and a large cap core pulling mechanism is provided on both sides of the top of the clamping block.

[0013] The large cap core pulling mechanism includes a core pulling structure installed on both sides of the top of the lower shaping mold.

[0014] As a preferred scheme of the utility model: the middle part of the lower shaping mold is provided with a U-shaped groove surface, a bearing cylinder is sequentially provided on the surface of the U-shaped groove surface, an adjusting conduit for positioning is provided at the middle four corners of the bearing cylinder, and a plurality of longitudinal and transverse metal flexible pipes are communicated on the side of the adjusting conduit.

[0015] As a preferred scheme of the utility model: the middle part of the metal hose is provided with a matching gasket in a longitudinal and transverse intersection manner, the middle part of the matching gasket is provided with an adjusting support for adjusting, and the side wall of the adjusting support is further provided with a plurality of connecting blocks, and the side wall of the plurality of connecting blocks is communicated with the middle part of the lower plastic mold.

[0016] As a preferred scheme of the utility model: the top of the lower plastic mold is further provided with an upper mold mechanism.

[0017] As a preferred scheme of the utility model: the upper mold mechanism comprises an upper connecting block arranged at the top of the lower plastic mold, the top end of the upper connecting block is provided with an upper plastic template, a plurality of scheduling holes are formed at the top four corner positions of the upper plastic template, a plurality of scheduling grooves are sequentially arranged on the top surface of the plurality of scheduling holes, and a plurality of stringing holes are sequentially arranged on the top surface of the plurality of scheduling grooves.

[0018] As a preferred scheme of the utility model: the top end of the upper plastic template is sequentially provided with a plurality of adjusting bolt connecting blocks, the top end of the plurality of adjusting bolt connecting blocks is provided with a plastic block, and the top surface of the plastic block is provided with an injection guide pipe.

[0019] As a preferred scheme of the utility model: the top side of the upper plastic template is provided with a sliding sleeve, and the top end of the sliding sleeve is provided with a plurality of adjusting blocks.

[0020] Compared with the prior art, the utility model has the advantages that:

[0021] When the core-pulling structure and the U-shaped groove surface need to be demolded in the later period, the position of the core-pulling structure is changed by the energization of the pneumatic cylinder, the fitting placement efficiency of the two molds is improved, the manual demolding efficiency is high by replacing the pneumatic cylinder, and the manpower and material resources are reduced;

[0022] The lower plastic mold and the adjusting pipe body structure at the top end are used to realize the assembly between the molds above and below, the plastic support is used to realize the assembly of the fitting top plate and the fitting bottom plate, the plastic between the two molds above and below is realized, one end of the lower plastic mold is used to realize the corresponding connecting piece, and the cross arrangement is realized. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a core-pulling mechanism schematic view of the utility model;

[0024] Figure 2 It is a large cap bottom film structure schematic view of the utility model;

[0025] Figure 3 It is a link groove structure schematic view of the utility model;

[0026] Figure 4 It is the automobile bumper plastic shaping die core structure schematic view of the utility model;

[0027] Figure 5 It is the whole structure schematic view of the utility model;

[0028] Figure 6 It is the upper connecting block structure schematic view of the utility model;

[0029] Figure 7 It is the disassembly view of the utility model's adhering bottom plate structure;

[0030] Figure 8 It is the big cover cap core pulling mechanism structure schematic view of the utility model;

[0031] Figure 9 It is the upper mould mechanism structure schematic view of the utility model;

[0032] Figure 10 It is the upper connecting block structure schematic view of the utility model.

[0033] In the drawing: 1, support mechanism;11, adhering bottom plate;12, assembly plate;13, adhering top plate;14, side wall connecting block;15, connecting vertical rod;16, upper top plate;17, plastic shaping support;18, lower plastic shaping mould;19, first connecting block;191, conveying communication pipe;192, pneumatic pressure cylinder;193, communication conduit;194, lifting rod;195, connecting piece;

[0034] 2, big cover cap core pulling mechanism;21, core pulling structure;22, U-shaped groove surface;24, bearing cylinder;25, adjusting conduit;26, metal hose;27, adhering gasket;28, adjusting support;29, second connecting block;

[0035] 3, upper mould mechanism;31, upper connecting block;32, upper plastic shaping template;33, dispatching hole;34, dispatching slot;35, series connection hole;36, adjusting bolted block;37, plastic shaping block;38, injection conduit;39, sliding sleeve;391, adjusting block;

[0036] 4, core pulling mechanism;41, automobile bumper plastic shaping die core;42, bumper plastic shaping head;43, big cover cap bottom film;44, I-shaped connecting head;45, link groove;46, inclined plane inclined top core pulling head;47, adjusting groove;

[0037] 5, U-shaped groove hinge. DETAILED DESCRIPTION

[0038] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0039] Please refer to Figure 1 Figure 10 The utility model provides a technical scheme: automobile rear bumper injection mold is with big inclined top inner pulling mechanism, including support mechanism 1, support mechanism 1 includes with the ground support's adhesion bottom plate 11, the top end middle part of adhesion bottom plate 11 is equipped with the assembly plate 12 for pushing, the top end of assembly plate 12 is equipped with the adhesion top plate 13 for supporting, the top end middle part of adhesion top plate 13 is equipped with side wall connecting block 14, the bottom end middle part of side wall connecting block 14 is equipped with connecting vertical rod 15, the rod body top end of connecting vertical rod 15 is equipped with upper top plate 16, the top end of upper top plate 16 is equipped with shaping support 17, and the side wall of shaping support 17 is equipped with lower plastic mould 18, and the surface of lower plastic mould 18 is sequentially equipped with a plurality of first connecting blocks 19;

[0040] The top end middle part of lower plastic mould 18 is equipped with conveying communication pipe 191, and pneumatic pressure cylinder 192 is installed in the middle part of conveying communication pipe 191, and the telescopic end of pneumatic pressure cylinder 192 corresponds with the top end position of conveying communication pipe 191;

[0041] The end of conveying communication pipe 191 is equipped with core pulling mechanism 4:

[0042] Core pulling mechanism 4 includes automobile insurance plastic core 41 respectively installed in the top end middle part of conveying communication pipe 191, and the top end of automobile insurance plastic core 41 is equipped with bumper plastic head 42, and the bottom surface of automobile insurance plastic core 41 is equipped with big cap bottom film 43, and the bottom side of big cap bottom film 43 is also equipped with U groove hinged joint 5;

[0043] U groove hinged joint 5 includes the top end middle part of I-shaped connecting head 44 installed in the bottom side of big cap bottom film 43 is equipped with link groove 45, and the top end surface of link groove 45 is equipped with inclined plane inclined top core pulling head 46, and the bottom surface of inclined plane inclined top core pulling head 46 is equipped with adjusting groove 47.

[0044] In the embodiment: the middle part of pneumatic pressure cylinder 192 is equipped with intercommunication guide pipe 193, and the top end middle part of intercommunication guide pipe 193 is equipped with lifting rod 194 for intercommunication, and the top end middle part of lifting rod 194 is sequentially equipped with connecting sheet 195 for locking.

[0045] The intercommunication guide pipe 193 and lifting rod 194 are controlled by the telescopic of lifting rod 194.​

[0046] In the embodiment, the lower plastic mold 18 is provided with clamping blocks on both sides of the top end, and the top of each clamping block is provided with a large cap core-pulling mechanism 2.

[0047] The large cap core-pulling mechanism 2 comprises a core-pulling structure 21 installed on both sides of the top of the lower plastic mold 18.

[0048] By adopting the lower plastic mold 18 and the core-pulling structure 21, when the upper and lower molds need to be demolded, the core-pulling structure 21 can be transformed to realize the tilting ejection of the lower plastic mold 18.

[0049] In the embodiment, the middle part of the lower plastic mold 18 is provided with a U-shaped groove surface 22, and the surface of the U-shaped groove surface 22 is sequentially provided with a bearing cylinder 24.

[0050] After the bearing cylinder 24 and the adjusting guide pipe 25 at one end are connected, the bearing cylinder 24 shares the pressure of the upper mold, and the metal hose 26 is in communication with the liquid metal of the automobile bumper.

[0051] In the embodiment, the middle part of the metal hose 26 is provided with a matching gasket 27, the middle part of the matching gasket 27 is provided with an adjusting bracket 28 for adjusting, and the side wall of the adjusting bracket 28 is further provided with a plurality of second connecting blocks 29.

[0052] By adopting the adjusting bracket 28 and the second connecting block 29, the second connecting block 29 and the lower plastic mold 18 are adjusted and transferred to realize the matching plastic.

[0053] In the embodiment, the top of the lower plastic mold 18 is further provided with an upper mold mechanism 3.

[0054] The upper mold mechanism 3 comprises an upper connecting block 31 arranged on the top of the lower plastic mold 18, and the top end of the upper connecting block 31 is provided with an upper plastic template 32.

[0055] By adopting the scheduling slot 34 and the serial connection hole 35, the metal liquid can be uniformly injected.

[0056] In this embodiment: the upper shaping template 32 top end middle part is provided with a plurality of adjusting bolt blocks 36, the top end middle part of the adjusting bolt blocks 36 is provided with a shaping block 37, the top surface of the shaping block 37 is provided with an injection guide pipe 38.

[0057] The shaping block 37 and the injection guide pipe 38 are used for guiding the assembly of the shaping structure.

[0058] The top side of the upper shaping template 32 is provided with a sliding sleeve 39, and the top end middle part of the sliding sleeve 39 is provided with a plurality of adjusting blocks 391.

[0059] The sliding sleeve 39 and the adjusting block 391 are used for guiding the transfer of one end.

[0060] In specific use, first step one: the closing of the upper and lower molds, according to the realization of the combination of the mold, through the plate surface structure of the fitting bottom plate 11 and the upper top plate 16 to realize the up and down movement, through the fitting of the fitting bottom plate 11 on the assembly plate 12, according to the supporting structure of the shaping support 17, the surface of the lower shaping mold 18 is used as the combination of the mold, according to the groove surface of the U-shaped groove surface 22 to realize clamping, and according to the cylinder body structure of the bearing cylinder 24 to realize pushing;

[0061] Step two: use the corresponding core pulling structure 21 to realize assembly;

[0062] First, personnel need to use the assembly of the lower shaping mold 18 to realize the synchronous movement of the corresponding core pulling structure 21 and the I-shaped connecting piece, realize the guidance of the U-shaped groove surface 22, the main technology is that the produced automobile bumper product is a paint part, the dog house is a inclined top structure, the product surface will have a top block, which cannot meet the strict surface quality requirements of customers, in order to realize the change of the mold movement value by using the U-shaped groove surface 22 and the bearing cylinder 24, the demolding between the upper and lower molds is changed from the conventional upper and lower split demolding, according to the gas guidance between the core pulling structure 21 and the adjusting guide pipe 25, as the shaping assembly of the structure;

[0063] Step three: blanking and shaping;

[0064] Through the corresponding uppermost upper connecting block 31, the position of the corresponding upper shaping template 32 top end structure and the four corner position scheduling hole 33 is realized, as the surface closing of the injection guide pipe 38 between the molds, according to the injection shaping of the adjusting bolt block 36, it is convenient for demolding later.

[0065] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0066] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A large inclined ejector inner pulling mechanism for an injection mold of a car rear bumper, comprising a support mechanism (1), characterized in that, The support mechanism (1) includes a base plate (11) that is attached to the ground. The top center of the base plate (11) is provided with an assembly plate (12) for pushing. The top of the assembly plate (12) is provided with a top plate (13) for support. The top center of the top of the top plate (13) is provided with a side wall connecting block (14). The bottom center of the side wall connecting block (14) is provided with a connecting rod (15). The top of the connecting rod (15) is provided with an upper top plate (16). The top of the upper top plate (16) is provided with a shaping bracket (17). The side wall of the shaping bracket (17) is provided with a lower shaping mold (18). The surface of the lower shaping mold (18) is provided with a plurality of first connecting blocks (19). A conveying connecting pipe (191) is installed at the top center of the lower molding die (18), and a pneumatic cylinder (192) is installed at the middle of the conveying connecting pipe (191). The telescopic end of the pneumatic cylinder (192) corresponds to the top position of the conveying connecting pipe (191). The end of the conveying connecting pipe (191) is equipped with a core-pulling mechanism (4): The core-pulling mechanism (4) includes an automotive safety molding core (41) installed at the top center of the conveying connecting pipe (191). The top of the automotive safety molding core (41) is equipped with a bumper molding head (42). The bottom surface of the automotive safety molding core (41) is equipped with a large cap bottom film (43). The bottom side of the large cap bottom film (43) is also provided with a U-groove hinge. The U-groove hinge includes an I-shaped connector (44) installed on the bottom side of the bottom of the cap bottom membrane (43), with a connecting groove (45) at the top center. A sloping top core puller (46) is installed on the top surface of the connecting groove (45), and an adjustment groove (47) is installed on the bottom surface of the sloping top core puller (46).

2. The large inclined ejector inner pulling mechanism for automobile rear bumper injection mold according to claim 1, characterized in that: The pneumatic cylinder (192) is provided with a connecting conduit (193) in the middle. A lifting rod (194) for communication is installed at the top center of the connecting conduit (193). A connecting piece (195) for locking is installed in sequence at the top center of the lifting rod (194).

3. The large inclined ejector inner pulling mechanism for automobile rear bumper injection mold according to claim 1, characterized in that: The top two sides of the lower molding mold (18) are respectively provided with clamping blocks, and the top two sides of the clamping blocks are respectively provided with large cap core pulling mechanism (2). The cap-shaped core-pulling mechanism (2) includes core-pulling structures (21) installed on both sides of the top of the lower molding die (18).

4. The large inclined ejector inner pulling mechanism for automobile rear bumper injection mold according to claim 1, characterized in that: The lower molding die (18) has a U-shaped groove (22) in the middle. The surface of the U-shaped groove (22) is provided with a bearing cylinder (24) in sequence. The four corners of the bearing cylinder (24) are provided with an adjustment guide (25) for positioning. The side of the adjustment guide (25) is connected to several crisscrossing metal hoses (26).

5. The large inclined ejector inner pulling mechanism for automobile rear bumper injection mold according to claim 4, characterized in that: The metal hose (26) has a cross-shaped fitting pad (27) in the middle. An adjustment bracket (28) for adjustment is installed in the middle of the fitting pad (27). Several second connecting blocks (29) are also installed on the side wall of the adjustment bracket (28). The side wall of the several second connecting blocks (29) is connected to the middle of the lower molding mold (18).

6. The large inclined ejector inner pulling mechanism for automobile rear bumper injection mold according to claim 1, characterized in that: The lower molding die (18) is also provided with an upper mold mechanism (3) at its top.

7. The large inclined ejector inner pulling mechanism for automobile rear bumper injection mold according to claim 6, characterized in that: The upper mold mechanism (3) includes an upper connecting block (31) set on the top of the lower molding mold (18). An upper molding template (32) is installed on the top of the upper connecting block (31). Several adjustment holes (33) are opened at the four corners of the top of the upper molding template (32). Several adjustment slots (34) are sequentially provided on the top surface of the several adjustment holes (33). Several connecting holes (35) are sequentially provided on the top surface of the several adjustment slots (34).

8. The large inclined ejector inner pulling mechanism for automobile rear bumper injection mold according to claim 7, characterized in that: The top center of the upper shaping template (32) is provided with a number of adjusting bolt blocks (36), and the top center of the number of adjusting bolt blocks (36) is provided with shaping blocks (37), and the top surface of the shaping blocks (37) is provided with injection conduits (38).

9. The large inclined ejector inner pulling mechanism for automobile rear bumper injection mold according to claim 8, characterized in that: The top side of the upper shaping template (32) is equipped with a sliding sleeve (39), and the top center of the sliding sleeve (39) is provided with several adjustment blocks (391).

Citation Information

Patent Citations

  • Stable injection mold

    CN210758944U