CN210436528U

CN210436528U - Mold for manufacturing garbage can

Info

Publication number: CN210436528U
Application number: CN201921354722.1U
Authority: CN
Inventors: 王根红
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-20
Filing date: 2019-08-20
Publication date: 2020-05-01
Anticipated expiration: 2029-08-20

Abstract

The utility model provides a mould for making garbage bin belongs to the mould and makes technical field. The mold hot runner process for manufacturing the garbage can solves the problems that the existing mold hot runner process for manufacturing the garbage can is long, the wall of the formed garbage can is thick, and the production cost is high. This a mould for making garbage bin, including the cover half subassembly, with cover half subassembly complex movable mould subassembly, the cover half subassembly includes lower compound plate and fixes the core piece on compound plate down, and the movable mould subassembly includes compound plate and fixes the die cavity piece on last compound plate, the die cavity piece with the relative compound die cooperation of core piece form the garbage bin die cavity, be provided with the hot runner in the core piece, the ejection of compact structure that a plurality of messenger hot runner and garbage bin die cavity communicate is put to the middle part position circumference interval distribution of core piece. The utility model has the advantages of simple structure and reasonable design, when the shaping garbage bin, the hot runner flow can shorten half, the bucket wall attenuate of the garbage bin of shaping, weight will generally be within 7 kilograms, and manufacturing cost is lower.

Description

Mold for manufacturing garbage can

Technical Field

The utility model belongs to the technical field of the mould is made, a mould for making garbage bin is related to.

Background

The shadow of the mold is produced in industrial production, the production speed of the mold is greatly improved in mass production, the rapid development of modern industry is driven, the mold manufacturing industry occupies a special position in a product manufacturing system, and the development level of the mold manufacturing industry determines the overall level of the manufacturing industry.

An injection mold is a tool for producing plastic products; can mass-produce some plastic parts with complex shapes. The injection mold is generally composed of a movable mold and a fixed mold, during production, the mold is installed in an injection molding machine, heated and melted plastic is injected into a mold cavity of the injection mold by the injection molding machine from high pressure, after cooling and solidification, the injection molding machine pulls the movable mold and the fixed mold to separate, and then an injection molded finished product is pushed out by an ejection mechanism, so that one-time injection molding is completed.

The existing injection mold of the garbage can is as follows as the Chinese patent number: "201621031111. X" a large-scale garbage bin injection mold, its concrete structure includes upper replica and lower replica, install the runner in the upper replica, install the fixed die plate under the upper replica, the system has the runner in the fixed die plate, install the cover half frame under the fixed die plate, install the movable mould frame on the lower replica, install the movable mould core in the movable mould frame, the clearance between movable mould core and the cover half frame constitutes the garbage bin die cavity, be equipped with the core pulling rod that is used for shaping truckle hole on the cover half frame, be used for driving the core pulling hydro-cylinder of core pulling rod motion, be equipped with in the core pulling rod along the length direction setting of core pulling rod and be used for pouring into the notes liquid hole of cooling water.

In the structure, a sprue is arranged in an upper compound plate of the large garbage can injection mold, a runner is arranged in a fixed mold plate, the sprue is opposite to the runner, the runner is communicated with a garbage can mold cavity and is positioned at the bottom of a garbage can mold cavity forming garbage can, when the large garbage can injection mold is used for forming the garbage can, the hot runner flow is long, the wall of the formed garbage can is thick, the weight of the formed garbage can is 9-10 kilograms, the production cost is high, the requirement on an injection molding machine is high, a 2800 ton injection molding machine is generally needed, the temperature of the injection molding machine for melting plastics by heating is required to reach 280-320 ℃, the flowability of the heated plastics is required to be good, the pressure requirement of high pressure injection into the mold cavity is generally over 220MPa, and the use is inconvenient.

Disclosure of Invention

The utility model aims at the above-mentioned problem that exists among the prior art, provide a simple structure, flow shorten, the wall thickness attenuate, low in production cost, convenient to use's a mould for making garbage bin.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a mould for making garbage bin, includes the cover half subassembly, with cover half subassembly complex movable mould subassembly, the cover half subassembly include lower compound board and fix the core piece on compound board down, the movable mould subassembly include compound board and fix the die cavity piece on last compound board, the die cavity piece with the relative compound die cooperation of core piece form the garbage bin die cavity, a serial communication port, the core piece in be provided with the hot runner, the middle part position circumference interval distribution of core piece a plurality of make the ejection of compact structure of hot runner and garbage bin die cavity intercommunication.

This a mould for making garbage bin mainly sets up ejection of compact structure in the middle part position of core piece to make hot runner and garbage bin die cavity intercommunication through ejection of compact structure, the main purpose that sets up like this makes this mould when the shaping garbage bin, and the hot runner flow reduces, and the bucket wall attenuate of fashioned garbage bin, and manufacturing cost is lower, and requires lowerly, convenient to use to the injection molding machine.

In the above mold for manufacturing a garbage can, the discharging structure includes a plurality of casting parts with gates, four casting installation positions are circumferentially distributed at intervals at the middle position of the core block, the casting parts are adapted to the casting installation positions in size and shape, each casting part is correspondingly connected to each casting installation position, the inlet end of a gate of a casting part is communicated with a hot runner, the outlet end of a gate of a casting part is communicated with the garbage can cavity, and a limiting device for preventing the casting part from radially shifting in the corresponding casting installation position is arranged between the casting part and the corresponding casting installation position. The four pouring installation positions are circumferentially and evenly distributed at the middle position of the mold core block at intervals, and when the pouring piece is positioned in the corresponding pouring installation position, the outlet end of the pouring gate of the pouring piece is positioned at the middle position of the corner of the garbage can formed by the garbage can cavity.

In foretell a mould for making garbage bin, the core piece include core piece down and can dismantle the last core piece that the concatenation linked firmly with core piece down, the lower tip circumference interval distribution of last core piece have four lower screens grooves, the upper end circumference interval distribution of lower core piece have four last screens grooves, lower screens groove and last screens groove upper and lower correspond the distribution, when lower core piece and last core piece relative concatenation links firmly from top to bottom, and should lower screens groove and the relative cooperation form from top to bottom of the last screens groove that corresponds pouring installation position. The purpose of the arrangement is to separately manufacture the core block, facilitate the production and processing of the core block and facilitate the assembly, maintenance and use.

In foretell a mould for making garbage bin, stop device have the snap ring on the outer wall that includes the pouring piece, the cell wall in the lower screens groove of pouring installation position on have a draw-in groove, the cell wall in the last screens groove of pouring installation position on have a draw-in groove down, when the pouring piece is in the pouring installation position that corresponds, and the first half of this pouring piece's snap ring is in the last draw-in groove of the pouring installation position that corresponds, the lower half of snap ring is in the lower draw-in groove of the pouring installation position that corresponds. The purpose that sets up like this can prevent effectively that the casting from radially drunkenness in the pouring installation position that corresponds, and the runner is moulded plastics stably, stable in structure, long service life.

In the above mold for manufacturing a trash can, the lower end surface of the upper core block is provided with a bolt hole, the lower core block and the lower compound plate opposite to the bolt hole are provided with a through hole, and the upper core block, the lower core block and the lower compound plate are correspondingly arranged in the through hole and the bolt hole through a first bolt to be fixedly connected with the bolt hole in the lower direction. The purpose of setting like this is convenient for last core piece, lower core piece and lower double plate fixed assembly, convenient to use.

In foretell a mould for making garbage bin, the die cavity piece include lower chamber piece one, lower chamber piece two, lower chamber piece three and lower chamber piece four, lower chamber piece one and lower chamber piece two correspond the stack and link firmly, lower chamber piece two, lower chamber piece three and lower chamber piece four correspond the stack with three of them through bolt two and link firmly on last compound board. The purpose of setting up like this is convenient for lower chamber block one, lower chamber block two, lower chamber block three, lower chamber block four and go up the fixed assembly of multiple board, convenient to use.

In the mold for manufacturing the garbage can, the insert is arranged between the lower cavity block III and the lower cavity block IV, the insert is provided with the core pulling rod for forming the caster hole of the garbage can, and the core pulling rod extends into the cavity of the garbage can.

Compared with the prior art, this a mould for making garbage bin's advantage does: simple structure, structural design are reasonable, and when shaping garbage bin, the hot runner flow can shorten half, and the bucket wall attenuate of fashioned garbage bin, weight need generally be within 7 kilograms, and manufacturing cost is lower, and requires lowly to the injection molding machine, and 1600 tons of heavy injection molding machines can produce, and the temperature that the injection molding machine was heated and is melted plastics only need reach 220 ℃ -250 ℃, and the high pressure is penetrated injection mold's die cavity pressure only need reach more than 150MPa, convenient to use.

Drawings

Fig. 1 is a schematic sectional structure view of the mold for manufacturing the trash can.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

FIG. 3 is a schematic sectional view of the fixed mold assembly in the mold for manufacturing the trash can.

In the figure, 1, a lower compound plate; 2. an upper compound plate; 3. a hot runner; 4. a gate; 5. casting the part; 6. a lower core block; 7. feeding a core block; 8. a snap ring; 9. a first bolt; 10. a first lower cavity block; 11. a second lower cavity block; 12. a third lower cavity block; 13. a fourth lower cavity block; 14. a second bolt; 15. an insert; 16. and (4) drawing the core rod.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, the mold for manufacturing the garbage can mainly comprises a fixed mold component and a movable mold component matched with the fixed mold component, wherein the fixed mold component comprises a lower compound plate 1 and a mold core block fixed on the lower compound plate 1, the movable mold component comprises an upper compound plate 2 and a mold cavity block fixed on the upper compound plate 2, the mold cavity block and the mold core block are matched and matched relatively to form a garbage can mold cavity, a hot runner 3 is arranged in the mold core block, and a plurality of discharging structures which enable the hot runner 3 to be communicated with the garbage can mold cavity are circumferentially distributed at intervals in the middle of the mold core block.

In actual manufacturing, the specific implementation mode of the discharging structure is as follows: the mold core block is mainly composed of four casting parts 5 with gates 4, four casting installation positions are circumferentially distributed at intervals at the middle position of the mold core block, the size and the shape of each casting part 5 are matched with the casting installation positions, each casting part 5 is correspondingly connected in each casting installation position, the inlet end of the gate 4 of the casting part 5 is communicated with the hot runner 3, and the outlet end of the gate 4 of the casting part 5 is communicated with the garbage can cavity; in practical application, for manufacturing and assembling convenience, the core block is manufactured in a split mode and mainly comprises a lower core block 6 and an upper core block 7 which is detachably spliced and fixedly connected with the lower core block 6, four lower clamping grooves are circumferentially distributed at intervals at the lower end of the upper core block 7, four upper clamping grooves are circumferentially distributed at intervals at the upper end of the lower core block 6, the lower clamping grooves and the upper clamping grooves are vertically and correspondingly distributed, and when the lower core block 6 and the upper core block 7 are vertically and relatively spliced and fixedly connected, the lower clamping grooves and the corresponding upper clamping grooves are vertically and relatively matched to form the pouring installation position.

And a limiting device for preventing the casting piece 5 from moving in the radial direction in the corresponding casting installation position is arranged between the casting piece 5 and the corresponding casting installation position. In practical application, the specific implementation mode of the limiting device is as follows: the snap ring 8 has on the outer wall of casting 5, has last draw-in groove on the cell wall in the lower screens groove of pouring installation position, has lower draw-in groove on the cell wall in the last screens groove of pouring installation position, when casting 5 was in the pouring installation position that corresponds, and the first half of this casting 5's snap ring 8 was in the last draw-in groove of the pouring installation position that corresponds, and the lower half of snap ring 8 was in the lower draw-in groove of the pouring installation position that corresponds.

In actual design, a bolt hole is formed in the lower end face of the upper core block 7, through holes are formed in the lower core block 6 and the lower compound plate 1 which are opposite to the bolt hole, and the upper core block 7, the lower core block 6 and the lower compound plate 1 are correspondingly arranged in the through holes and the bolt hole through a first bolt 9 to enable the upper core block 7, the lower core block 6 and the lower compound plate 1 to be fixedly connected with one another in the lower and the lower directions.

During actual manufacturing, the cavity block mainly comprises a first lower cavity block 10, a second lower cavity block 11, a third lower cavity block 12 and a fourth lower cavity block 13, wherein the first lower cavity block 10 and the second lower cavity block 11 are correspondingly overlapped and fixedly connected, and the second lower cavity block 11, the third lower cavity block 12 and the fourth lower cavity block 13 are correspondingly overlapped and fixedly connected on the upper compound plate 2 through a second bolt 14; an insert 15 is arranged between the third lower cavity block 12 and the fourth lower cavity block 13, a core pulling rod 16 for forming a caster hole of the garbage can is arranged on the insert 15, and the core pulling rod 16 extends into the cavity of the garbage can.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the lower doubler 1 is used more herein; an upper compound plate 2; a hot runner 3; a gate 4; a casting 5; a lower core block 6; an upper core block 7; a snap ring 8; a first bolt 9; a first lower cavity block 10; a second lower cavity block 11; a third lower cavity block 12; a fourth lower cavity block 13; a second bolt 14; an insert 15; the plunger rod 16, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. The utility model provides a mould for making garbage bin, includes the cover half subassembly, with cover half subassembly complex movable mould subassembly, the cover half subassembly include lower compound board (1) and fix the core piece on compound board (1) down, the movable mould subassembly include compound board (2) and fix the die cavity piece on last compound board (2), the die cavity piece with the relative compound die cooperation of core piece form the garbage bin die cavity, its characterized in that, the die cavity in be provided with hot runner (3), the middle part position circumference interval distribution of die core piece a plurality of make the ejection of compact structure of hot runner (3) and garbage bin die cavity intercommunication.

2. The mold for manufacturing the trash can according to claim 1, wherein the discharging structure comprises a plurality of casting pieces (5) with gates (4), four casting installation positions are circumferentially distributed at intervals in the middle of the core block, the casting pieces (5) are matched with the casting installation positions in size and shape, each casting piece (5) is correspondingly connected in each casting installation position, the inlet end of each gate (4) of each casting piece (5) is communicated with the hot runner (3), the outlet end of each gate (4) of each casting piece (5) is communicated with the trash can cavity, and a limiting device for preventing the casting pieces (5) from radially moving in the corresponding casting installation positions is arranged between each casting piece (5) and the corresponding casting installation position.

3. The mold for manufacturing the trash can according to claim 2, wherein the core block comprises a lower core block (6) and an upper core block (7) detachably connected with the lower core block (6) in a splicing manner, four lower clamping grooves are circumferentially and alternately distributed on the lower end of the upper core block (7), four upper clamping grooves are circumferentially and alternately distributed on the upper end of the lower core block (6), the upper clamping grooves and the upper clamping grooves are vertically and correspondingly distributed, and when the lower core block (6) and the upper core block (7) are vertically and relatively connected in a splicing manner, the lower clamping grooves and the corresponding upper clamping grooves are vertically and relatively matched to form the pouring installation position.

4. A mold for manufacturing a trash can according to claim 3, wherein the limiting device comprises a snap ring (8) on the outer wall of the casting member (5), an upper snap groove on the groove wall of the lower snap groove of the casting installation position, and a lower snap groove on the groove wall of the upper snap groove of the casting installation position, when the casting member (5) is in the corresponding casting installation position, the upper half part of the snap ring (8) of the casting member (5) is in the upper snap groove of the corresponding casting installation position, and the lower half part of the snap ring (8) is in the lower snap groove of the corresponding casting installation position.

5. The mold for manufacturing the trash can of claim 3 or 4, wherein the lower end surface of the upper core block (7) is provided with bolt holes, the lower core block (6) opposite to the bolt holes and the lower compound plate (1) are provided with through holes, and the upper core block (7), the lower core block (6) and the lower compound plate (1) are correspondingly arranged in the through holes and the bolt holes through bolts one (9) so as to be fixedly connected with the through holes and the bolt holes.

6. The mold for manufacturing the trash can of claim 1, wherein the cavity block comprises a first lower cavity block (10), a second lower cavity block (11), a third lower cavity block (12) and a fourth lower cavity block (13), the first lower cavity block (10) and the second lower cavity block (11) are fixedly connected in a corresponding overlapping mode, and the second lower cavity block (11), the third lower cavity block (12) and the fourth lower cavity block (13) are fixedly connected to the upper compound plate (2) in a corresponding overlapping mode through a second bolt (14).

7. The mold for manufacturing the trash can of claim 6, wherein an insert (15) is arranged between the third lower cavity block (12) and the fourth lower cavity block (13), the insert (15) is provided with a core rod (16) for forming a caster hole of the trash can, and the core rod (16) extends into the cavity of the trash can.