CN216941556U

CN216941556U - Injection mold of butt joint for box

Info

Publication number: CN216941556U
Application number: CN202123399539.3U
Authority: CN
Inventors: 阮骏伟
Original assignee: Foshan Nanhai Mingjun Metal Plastic Products Co ltd
Current assignee: Foshan Nanhai Mingjun Metal Plastic Products Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-12
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to the technical field of injection molding dies, in particular to an injection mold of a butt joint for a box, which comprises an upper mold assembly, a lower mold assembly and side mold bases, wherein the upper mold assembly is detachably connected with the lower mold assembly, the axial sections of the side mold bases are of an L-shaped structure and are fixedly installed at the connecting parts of the upper mold assembly and the lower mold assembly, one end of each side mold base is provided with a plurality of side mold forming blocks, the side mold forming blocks are positioned in the upper mold assembly, the bottom end of the upper mold assembly and the top end of the lower mold assembly are provided with matched forming cavities, the forming cavities are provided with a plurality of forming cavities which are connected with the side mold forming blocks, and runners which are communicated in an I shape are formed between the forming cavities. According to the utility model, the molding cavity is connected with the plurality of communicated flow channels, so that the butt joint is convenient to fix and electroplate, and the production efficiency is improved.

Description

Injection mold of butt joint for box

Technical Field

The utility model relates to the technical field of injection molding dies, in particular to an injection mold of a butt joint for a box.

Background

The injection molding mold is a simple process of injection molding, wherein plastic is heated and melted in a heating cylinder of an injection molding machine, then enters a mold cavity through a nozzle and a pouring system of the mold under the pushing of a screw rod or a piston of the injection molding machine, and is finally hardened and shaped in the mold cavity. Injection molding accounts for a very large proportion of the molding of plastic products, and thus the production of plastic molding dies is about a majority of injection molds.

At present, the existing butt joint is generally two-fork or three-fork, only one connecting rod is arranged in the middle of an injection molding mold after casting molding, a supporting rod for hanging is not arranged, manual one-hand clamping and one-hand spraying electroplating are needed in a subsequent electroplating process, and the mold is inconvenient to spray and influences subsequent process efficiency.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of defects in the prior art, the utility model provides the injection mold of the butt joint for the box, which is convenient for fixing the butt joint and electroplating and improves the production efficiency.

The technical scheme adopted by the utility model for solving the technical problem is as follows: the utility model provides an injection mold of butt joint for case, includes last mould subassembly, lower mould subassembly and side form seat, go up the mould subassembly and can dismantle with lower mould subassembly and be connected, side form seat axial cross-section is L type structure, and fixed mounting is in last mould subassembly and lower mould subassembly's junction, and the one end of side form seat is provided with a plurality of side form shaping piece, and side form shaping piece is located last mould subassembly, and the bottom of going up the mould subassembly is equipped with assorted shaping chamber with the top of lower mould subassembly, and the shaping chamber is provided with a plurality of and is connected with side form shaping piece, sets up the runner that is the i-shaped intercommunication between the shaping chamber.

Through the technical scheme, the molding cavity is connected with the runners which are communicated with each other, so that the connecting rod is connected between the butt joints after injection molding, the connecting rod can provide portability for the subsequent electroplating process, and the production efficiency is improved.

Furthermore, a main runner is arranged in the upper die assembly, penetrates through the upper die assembly and is communicated with the runner.

Through above-mentioned technical scheme, the sprue is linked together with the circulation, is convenient for water the mould with the plastic after melting through the sprue.

Further, go up the mould subassembly and include upper fixed plate, upper die base and last shaping piece, upper die base fixed connection in the bottom of upper fixed plate, go up the shaping piece install at the upper die base deviate from one side of upper fixed plate and with upper die base fixed connection, the bottom of going up the shaping piece is equipped with the shaping chamber, goes up to be equipped with the runner between the shaping chamber, goes up the runner and communicates the shaping chamber on the perpendicular to.

Through above-mentioned technical scheme, go up the mould and pass through upper fixed plate, upper die base and last shaping piece for the mould is favorable to easy dismounting simultaneously with the work piece shaping fast at the in-process of production.

Further, the lower die assembly comprises a lower fixing plate, a lower die base fixedly connected to the top end of the lower fixing plate and a lower forming block arranged on the lower die base, a lower forming cavity is arranged on one side, away from the lower die base, of the lower forming block, a lower runner is arranged between the lower forming cavities, and the lower runner is vertically communicated with the lower forming cavity.

Through the technical scheme, the lower die ensures that the workpiece can stably enter the lower forming cavity and the runner in the pouring process through the fixing plate and the lower forming block.

Further, still be equipped with demoulding mechanism in the lower mould subassembly, demoulding mechanism includes push rod fixed plate, push rod backup pad and a plurality of push rod, and push rod fixed plate and push rod backup pad are all installed between bottom plate and die holder, and the push rod bottom is installed in the push rod fixed plate, and the push rod top is passed the push rod fixed plate and is extended to lower shaping piece bottom.

Through the technical scheme, the demolding mechanism can be favorable for rapidly separating the workpiece from the mold.

Furthermore, the upper molding cavity and the lower molding cavity are matched to form a complete molding cavity, and the upper runner and the lower runner are matched to form a complete runner.

Through the technical scheme, the molding cavity and the runner are used for producing workpieces, so that the poured molten liquid is molded in the molding cavity and the runner.

Furthermore, a sprue is arranged at the connecting runner of the lower forming block, and the sprue penetrates through the lower die holder and extends into a cavity between the lower fixing plate and the lower die holder.

Through the technical scheme, the sprue is communicated with the flow channel, so that a support which is convenient to hold can be arranged after a workpiece is formed.

Furthermore, the two ends of the side mold forming block are provided with grooves, forming plug-ins are installed in the grooves, the forming plug-ins of the grooves at the upper end are flush with the top end of the upper forming block, and the forming plug-ins of the grooves at the lower end extend into the lower forming block.

Through above-mentioned technical scheme, the recess makes the location of shaping plug-in components accurate, improves butt joint working of plastics injection moulding's quality.

In conclusion, the beneficial effects of the utility model are as follows:

the utility model arranges a plurality of mutually communicated runners in the mould, so that the butt joint of the utility model can be quickly formed in the runners and the forming cavity, the communicated runners can facilitate electroplating after the injection molding is formed, the side forming block is provided with the positioning groove, and the two ends of the groove are provided with the forming plug-in units, so that the positioning of the forming plug-in units is accurate, and the injection molding quality of the connector plastic part is improved.

Drawings

FIG. 1 is a schematic structural diagram of an injection mold of the butt joint of the present embodiment;

FIG. 2 is an exploded view of an injection mold for the butt joint of the present embodiment;

FIG. 3 is a schematic view of the structure of the forming block of the present embodiment;

FIG. 4 is a half sectional view of the injection mold structure of the butt joint of the present embodiment;

FIG. 5 is a sectional view of the injection mold structure of the butt joint of the present embodiment;

FIG. 6 is another side sectional view of the injection mold structure of the butt joint of the present embodiment.

In the figure: 1. an upper die assembly; 11. an upper fixing plate; 12. an upper die holder; 13. an upper forming block; 2. a lower die assembly; 21. a lower fixing plate; 22. a lower die holder; 23. a lower forming block; 24. a push rod fixing plate; 25. a push rod support plate; 26. a push rod; 3. a side die holder; 31. forming a block by the side mold; 4. a molding cavity; 41. an upper molding cavity; 42. a lower molding cavity; 5. a flow channel; 51. an upper flow passage; 52. a lower runner; 6. a main flow channel; 7. a sprue; 8. and (6) forming the insert.

Detailed Description

In order that the present disclosure may be more readily and clearly understood, reference is now made to the following description taken in conjunction with the accompanying drawings.

It is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like as used herein, are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, constructed and operated in a particular orientation, and therefore should not be considered limiting of the present invention. "plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Referring to fig. 1 to 6, in this embodiment, an injection mold of butt joint for case, including last mould assembly 1, lower mould assembly 2 and side form seat 3, it is connected to go up mould assembly 1 and lower mould assembly 2 can dismantle, go up mould and lower mould through the mode of dismantling the connection, can carry out the split after using up the mould, the big or small structure of the inside shaping chamber 4 of clearance remaining material or according to the production demand change, 3 axial cross-sections of side form seat are L type structure, and fixed mounting is in the junction of last mould assembly 1 and lower mould assembly 2, the one end of side form seat 3 is provided with a plurality of side form shaping module 31, side form shaping module 31 is located last mould assembly 1, the side form is used for the top to connect last mould and lower mould, make the connection between it more inseparable, the bottom of going up mould assembly 1 is equipped with assorted shaping chamber 4 with the top of lower mould assembly 2.

Specifically, a main runner 6 is arranged in the upper die assembly 1, and the main runner 6 penetrates through the upper die assembly 1 and is communicated with the runner 5 for melting and conveying plastics into the die closing device. The mold clamping device has the functions of: on the one hand, the mould can be closed under the condition of bearing the injection pressure; alternatively, the article can be removed from the injection device and melted before the plastic is injected into the mold, and the melt can then be injected into the mold under controlled pressure and speed. The melted plastic is irrigated into the molding cavity 4 in the mold closing through the main runner 6, and is cooled into a required workpiece after being fully filled, runners 5 are communicated among the molding cavities 4, the runners 5 are used for conveying solution into the molding cavity 4, and the plastic in the runners 5 after molding is connected with the molding cavity 4 to form a support for connecting the molded workpiece, so that the portability is provided for subsequent processing.

In this embodiment, the upper die assembly 1 includes an upper fixing plate 11, an upper die base 12 and an upper forming block 13, the upper die base 12 is fixedly connected to the bottom end of the upper fixing plate 11, the upper forming block 13 is installed on one side of the upper die base 12 departing from the upper fixing plate 11 and is fixedly connected with the upper die base 12, the bottom end of the upper forming block 13 is provided with an upper forming cavity 41, an upper runner 51 is arranged between the upper forming cavities 41, the upper runner 51 is vertically communicated with the upper forming cavity 41, the lower die assembly 2 includes a lower fixing plate 21, the lower die base 22 is fixedly connected to the top end of the lower fixing plate 21 and a lower forming block 23 is installed on the lower die base 22, one side of the lower forming block 23 departing from the lower die base 22 is provided with a lower forming cavity 42, a lower runner 52 is arranged between the lower forming cavities 42, and the lower runner 52 is vertically communicated with the lower forming cavity 42.

Specifically, when the upper die assembly 1 and the lower die assembly 2 are assembled, the upper forming cavity 41 and the lower forming cavity 42 are combined into a complete forming cavity 4, meanwhile, the upper runner 51 and the lower runner 52 are also combined into a complete runner 5, the runner 5 and the forming cavity 4 both condense the melted foot plastics, and the runner 5 is combined into a fixed support for connecting a workpiece, so that a supporting force effect is provided for an electroplating process.

In the embodiment, the upper molding cavity 41 and the lower molding cavity 42 are matched to form a complete molding cavity 4, the upper runner 51 and the lower runner 52 are matched to form a complete runner 5, a sprue 7 is arranged at the position of the lower molding block 23 connected with the runner 5, and the sprue 7 penetrates through the lower die holder 22 and extends into a cavity between the lower fixing plate 21 and the lower die holder 22. The sprue 7 is perpendicular to the runner 5, and there is partial melt to enter into the sprue 7 in the in-process of production and takes shape, and the work piece after the shaping is cross connecting rod can articulate the work piece fast to for the effect that provides a support frame on next step of technology, side form shaping piece 31 both ends are equipped with the recess, install shaping plug-in components 8 in the recess, the shaping plug-in components 8 of upper end recess flushes with last shaping piece 13 top, the shaping plug-in components 8 of lower extreme recess extend to down in the shaping piece 23. The two ends of the groove are provided with the forming plug-in units 8, so that the positioning of the forming plug-in units 8 is accurate, and the injection molding quality of the connector plastic part is improved.

Specifically, still be equipped with demoulding mechanism in the lower mould subassembly 2, demoulding mechanism includes push rod 26 fixed plate 24, push rod backup pad 25 and a plurality of push rod 26, and push rod fixed plate 24 and push rod backup pad 25 are all installed between bottom plate 21 and die holder 22, and the push rod 26 bottom is installed in push rod fixed plate 24, and push rod 26 top is passed push rod fixed plate 24 and is extended to lower shaping piece 23 bottom. In the demolding process, the push rod supporting plate 25 moves upwards to jack the push rod 26 upwards, the upper end of the push rod 26 jacks the butt joint plastic part, and the butt joint plastic part is ejected out of the lower molding block 23 under the action of the push rod supporting plate 25, so that the demolding process of the embodiment is realized; the lower fixed plate 21 of this embodiment is further provided with a guide pillar for guiding the demolding, the upper end of the guide pillar is arranged in the upper fixed plate 11, the upper mounting block and the lower mounting block are internally provided with guide sleeves, and the guide pillar penetrates through the two guide sleeves.

Can also set up the release link in the backup pad in this embodiment to the cover has reset spring in the release link, and the release link upper end passes down the installation piece simultaneously, and hugs closely with the lower extreme of last installation piece, and after this embodiment drawing of patterns, the lower mould is kick-backed to initial position along the release link under reset spring's effect, thereby conveniently moulds plastics next time.

The working principle of the embodiment is as follows: when pouring, pour the melt of moulding plastics into through sprue 6, then along pipeline to runner 5 in, then at the runner 5 and the shaping chamber 4 shaping of intercommunication, partial fine hair material can enter into the shaping of sprue 7 for the work piece is convenient for hang and electroplates on the support frame after the casting shaping, has set up plug-in components on side form shaping piece 31 simultaneously, makes the location that work can be better, improves the efficiency and the quality of production.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be limited thereby, and any insubstantial changes and modifications made by those skilled in the art based on the present invention are within the scope of the present invention.

Claims

1. The utility model provides a case is with injection mold of butt joint, includes mould assembly (1), lower mould assembly (2) and side form seat (3), its characterized in that: go up mould subassembly (1) and lower mould subassembly (2) and can dismantle the connection, side die holder (3) axial cross-section is L type structure, and fixed mounting is in the junction of last mould subassembly (1) and lower mould subassembly (2), the one end of side die holder (3) is provided with a plurality of side form shaping piece (31), side form shaping piece (31) are located last mould subassembly (1), the bottom of going up mould subassembly (1) is equipped with assorted shaping chamber (4) with the top of lower mould subassembly (2), shaping chamber (4) are provided with a plurality of and are connected with side form shaping piece (31), set up runner (5) that are the i-shaped intercommunication between shaping chamber (4).

2. An injection mold for a butt joint of a box according to claim 1, wherein: a main runner (6) is arranged in the upper die assembly (1), and the main runner (6) penetrates through the upper die assembly (1) and is communicated with the runner (5).

3. An injection mold for a butt joint of a box according to claim 2, wherein: go up mould subassembly (1) and include upper fixed plate (11), upper die base (12) and go up shaping piece (13), upper die base (12) fixed connection is in the bottom of upper fixed plate (11), go up shaping piece (13) install at one side that upper die base (12) deviates from upper fixed plate (11) and with upper die base (12) fixed connection, the bottom of going up shaping piece (13) is equipped with into die cavity (41), go up and be equipped with between shaping cavity (41) and go up runner (51), go up runner (51) and communicate perpendicularly on into die cavity (41).

4. An injection mold for a butt joint for a box according to claim 3, wherein: the lower die assembly (2) comprises a lower fixing plate (21), a lower die holder (22) fixedly connected to the top end of the lower fixing plate (21) and a lower forming block (23) installed on the lower die holder (22), a lower forming cavity (42) is arranged on one side, deviating from the lower die holder (22), of the lower forming block (23), a lower runner (52) is arranged between the lower forming cavities (42), and the lower runner (52) is vertically communicated with the lower forming cavity (42).

5. An injection mold for a butt joint for a box according to claim 4, wherein: still be equipped with demoulding mechanism in lower mould subassembly (2), demoulding mechanism includes push rod fixed plate (24), push rod backup pad (25) and a plurality of push rod (26), and push rod fixed plate (24) and push rod backup pad (25) are all installed between bottom plate (21) and die holder (22), and install in push rod fixed plate (24) push rod (26) bottom, and push rod fixed plate (24) are passed on push rod (26) top to extend to lower shaping piece (23) bottom.

6. An injection mold for a butt joint of a box according to claim 5, wherein: the upper molding cavity (41) and the lower molding cavity (42) are matched to form a complete molding cavity (4), and the upper runner (51) and the lower runner (52) are matched to form a complete runner (5).

7. An injection mold for a butt joint of a box according to claim 6, wherein: and a sprue (7) is arranged at the position of the lower forming block (23) connected with the runner (5), and the sprue (7) penetrates through the lower die holder (22) and extends into a cavity between the lower fixing plate (21) and the lower die holder (22).

8. An injection mold for a butt joint of a box according to claim 1, wherein: the side form shaping piece (31) both ends are equipped with the recess, install shaping plug-in components (8) in the recess, and shaping plug-in components (8) and last shaping piece (13) top of upper end recess flush, and shaping plug-in components (8) of lower extreme recess extend to down in the shaping piece (23).