CN215203343U

CN215203343U - Rubber cold runner mold

Info

Publication number: CN215203343U
Application number: CN202121520641.1U
Authority: CN
Inventors: 申传春
Original assignee: Wuxi Shenbo Machinery Manufacturing Co ltd
Current assignee: Wuxi Shenbo Machinery Manufacturing Co ltd
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-12-17
Anticipated expiration: 2031-07-05

Abstract

The utility model discloses a rubber cold runner mold, which is applied to the field of rubber injection, and solves the technical problems that rubber vulcanization can also occur in a runner plate and the disassembly and assembly are convenient after long-time heating, and the technical scheme is characterized in that the rubber cold runner mold comprises an upper template, a middle template, a heating plate, a heat insulation plate and a lower template, wherein the middle template is arranged below the upper template, the heat insulation plate is arranged below the middle template, the heating plate is arranged below the heat insulation plate, the lower template is arranged below the heating plate, a cold flow hole is arranged in the middle template, a cold flow pipe is arranged in the cold flow hole, a cooling groove is arranged on the side wall of a cooling column, the cold flow pipe is attached to the cooling groove, and a plurality of disassembling components are arranged on the heating plate; the rubber cooling device has the advantages that the rubber is effectively and quickly cooled, the vulcanization of the rubber is avoided, and the rubber cooling device is convenient to disassemble and assemble.

Description

Rubber cold runner mold

Technical Field

The utility model relates to a rubber injection field, in particular to rubber cold runner mould.

Background

The cold runner controls the temperature of the rubber compound in the runner and the sprue by a medium (usually oil) so that the rubber compound is always kept below the vulcanization temperature before entering a mold cavity, thereby having good plasticity and not causing vulcanization, and avoiding the phenomenon that a stub bar generated in the injection process is waste.

The cold runner mold is generally long when the cold runner mold starts to be heated, and although a heat insulation plate is arranged between the runner plate and the heating plate of the existing cold runner mold, the heat insulation plate conducts heat even after the cold runner mold is heated for a long time, so that the problem of rubber vulcanization can occur in the runner plate sometimes, and the cold runner mold capable of effectively preventing rubber vulcanization and being convenient to assemble and disassemble is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rubber cold runner mould, its advantage is effectual carries out quick cooling to rubber, has avoided the vulcanization of rubber to make things convenient for the dismouting.

The above technical purpose of the present invention can be achieved by the following technical solutions: a rubber cold runner mold comprises an upper mold plate, a middle mold plate, a heating plate, a heat insulation plate and a lower mold plate, wherein the middle mold plate is arranged below the upper mold plate;

a runner sealing ring is arranged in the middle template, a runner plate is arranged in the runner sealing ring, a runner block is embedded in the runner plate, and mutually communicated runner holes are formed in the runner plate and the runner block;

the upper die plate is provided with an injection nozzle which is communicated with a runner hole on the runner plate, the runner plate is provided with a cooling column, the cooling column is arranged at the four corners of the runner plate, the cooling column is provided with a cooling hole, and the cooling hole is communicated with the runner hole;

the lower template is provided with a discharge hole which is communicated with a cooling hole in the cooling column;

a cold flow hole is formed in the middle template, a cold flow pipe is arranged in the cold flow hole, a cooling groove is formed in the side wall of the cooling column, and the cold flow pipe is attached to the cooling groove;

the heating plate is provided with a plurality of disassembling components.

According to the technical scheme, the runner sealing ring seals the runner plate in the middle template, and the runner block is matched at the position of the runner, which needs to turn, so that the runner is smoother at the turning position, and rubber in the runner is better in circulation;

the rubber enters the runner plate through the injection nozzle, enters the cooling holes in the cooling column through the runners in the runner plate, and then flows out of the discharge hole communicated with the cold flow hole;

the cold flow pipe can rapidly take away heat in the middle template so as to cool the rubber, and the cold flow pipe attached to the cooling column further takes away heat of the rubber flowing through the cold flow column so as to further cool the rubber;

thereby convenient quick dismantlement mould through dismantling the subassembly.

The utility model discloses further set up to: the disassembly assembly comprises a fixed column and a movable rod, one end of the fixed column is arranged in the heating plate, fixing holes matched with the fixed column are formed in the heat insulation plate and the middle template, a through hole is formed in the upper portion of the fixed column, an insertion hole is formed in one side of the middle template, the insertion hole and the through hole in the fixed column are coaxial, and the movable rod is inserted into the fixed through hole through the insertion hole.

Through above-mentioned technical scheme, the fixed column passes the heat insulating board and in inserting the well template, the movable rod inserts and runs through the through-hole of fixed column from the inserted hole of well template to make and fix the position between heat insulating board and well template and the hot plate.

The utility model discloses further set up to: the cooling column sleeve is provided with a heat insulation sleeve, cold flow ports are formed in two sides of the upper portion of the heat insulation sleeve, the cold flow pipe is attached to a cooling groove of the cooling column through the cold flow ports, the lower end of the cooling column is connected with a discharge sleeve, a discharge nozzle is arranged in the discharge sleeve, an elastic gasket is arranged between the discharge nozzle and the discharge sleeve, the discharge nozzle is communicated with the cooling hole, and the discharge nozzle is communicated with the discharge hole.

Through above-mentioned technical scheme, the heat that the heat insulating sleeve reduced the cooling column and received, the cooling tube has increased the cooling area with the cooling bath laminating of cooling column, thereby make the effective cooling of the rubber in the cooling column, the cold rubber that goes in the pipe flows out from the ejection of compact mouth, ejection of compact cover is fixed at the lower extreme of cooling column, ejection of compact mouth is fixed to the ejection of compact cover, elastic gasket makes the side laminating more tight of going up of ejection of compact mouth and lower bolster, thereby make stable the flowing into the discharge opening from the ejection of compact mouth of rubber.

The utility model discloses further set up to: the one end of movable rod is equipped with spacing piece, the one end that the movable rod is close to spacing piece is provided with the pull handle, the one end that spacing piece was kept away from to the movable rod flushes with one side of well template, the one end that the movable rod is close to spacing piece is through the opposite side butt of spacing piece with well template, well template rotates the spacing hook that is connected with the spacing piece position of restriction in one side that is close to spacing piece, spacing hook and spacing piece butt.

Through above-mentioned technical scheme, the pull handle makes things convenient for the movable rod to insert in the through-hole of fixed column and take out from the through-hole of fixed column, and when the through-hole of all fixed columns was inserted completely to the movable rod, spacing piece just in time butt in one side of well template, at this moment spacing hook rotate and butt in one side of spacing piece, makes the movable rod fix the position.

The utility model discloses further set up to: a plurality of heating rods which are uniformly distributed are arranged in the heating plate.

Through above-mentioned technical scheme, generate heat after connecting the power through the heating rod, with heat conduction on the hot plate to make the rubber solidification of outflow discharge opening.

The utility model discloses further set up to: the side of going up of well template is connected with the reference column, the downside of cope match-plate pattern is seted up and is had the position sleeve with reference column matched with.

Through the technical scheme, the positions of the middle template and the upper template are accurately fixed.

The utility model discloses further set up to: the downside of lower bolster is equipped with the guide post, the guiding hole has been seted up to the downside of lower bolster.

Through the technical scheme, the rubber mould can be conveniently and accurately fixed and positioned with other moulds, so that rubber can accurately flow into the next mould from the discharge hole.

The utility model discloses further set up to: and four corners of the lower side of the middle template are provided with downward-pulling threaded holes, the downward-pulling threaded holes are in threaded fit with downward-pulling bolts, and the downward-pulling bolts are abutted to the lower side face of the heating plate.

Through the technical scheme, when the pull-down bolt is screwed with the pull-down threaded hole, the pull-down bolt forces the middle template, the isolation plate and the heating plate to be tightly attached.

To sum up, the utility model discloses following beneficial effect has:

1. the side wall of the cooling column is provided with the cooling groove, and the cold flow pipe is attached to the cooling groove, so that the cooling area is increased, and the cooling is better;

2. the disassembly assembly facilitates the disassembly and assembly among the heating plate, the heat insulation plate and the middle template, and improves the disassembly and assembly speed.

Drawings

Fig. 1 is an overall configuration diagram of the present embodiment;

FIG. 2 is a front view of the present embodiment embodying a spacing hook;

FIG. 3 is a schematic view of the sectional structure G-G of the present embodiment;

FIG. 4 is a schematic view of the F-F cross-sectional structure of the present embodiment;

FIG. 5 is a schematic view of the H-H sectional structure of the present embodiment;

FIG. 6 is a schematic structural view of the detachment assembly of the present embodiment;

FIG. 7 is an enlarged view of portion A of FIG. 3;

FIG. 8 is a schematic view showing the positional relationship of the cooling column, the insulating sleeve, and the spacer.

Reference numerals: 1. mounting a template; 2. a middle template; 3. heating plates; 4. a heat insulation plate; 5. a lower template; 6. a flow passage sealing ring; 7. a runner plate; 8. a flow passage block; 9. an injection nozzle; 10. cooling the column; 11. a cooling hole; 12. a discharge hole; 13. a cold flow pipe; 14. a cooling tank; 15. fixing a column; 16. a movable rod; 17. a limiting sheet; 18. a limiting hook; 20. a heat insulating sleeve; 21. a cold flow port; 22. a discharging sleeve; 23. a discharging nozzle; 24. an elastic pad; 25. a heating rod; 28. a guide post; 31. pulling down the bolt; 32. abutting the sheet; 33. a pull handle; 34. a fixing pin; 35. a plunger; 36. a limiting column.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, a rubber cold runner mold comprises an upper mold plate 1, a middle mold plate 2, a heating plate 3, a heat insulation plate 4 and a lower mold plate 5, wherein the middle mold plate 2 is bolted below the upper mold plate 1, the heat insulation plate 4 is bolted below the middle mold plate 2, the heating plate 3 is bolted below the heat insulation plate 4, and the lower mold plate 5 is bolted below the heating plate 3.

Referring to fig. 1, 2 and 3, an injection nozzle 9 is arranged on an upper template 1, a cavity is arranged in a middle template 2, a runner seal ring 6 is attached to the cavity, a runner plate 7 is fixed on the inner bolt of the runner seal ring 6, a runner block 8 is embedded in the runner plate 7, runner holes are formed in the runner block 8 and the runner plate 7, the runner holes of the runner block 8 and the runner plate 7 are mutually communicated to form a rubber runner, the injection nozzle 9 is communicated with the runner plate 7, the injection nozzle 9 is communicated with the runner holes in the runner plate 7, and therefore rubber flows into the runner from the injection nozzle 9 and is dispersed all around.

Referring to fig. 2, 3, 7 and 8, cooling columns 10 are connected to four corners of the runner plate 7, cooling holes 11 are formed in the cooling columns 10, and the cooling holes 11 are communicated with the runner holes in the runner plate 7, so that rubber flows into the cooling holes 11 from the runner holes;

seted up cooling bath 14 on the lateral wall of cooling column 10, the upper end of cooling column 10 is equipped with plunger 35, the spacing groove has been seted up to one side of plunger 35, spacing groove sliding fit has spacing post 36, spacing post 36 through pass the hole on the cooling column 10 and with the spacing groove cooperation, thereby restrain plunger 35 in the position of cooling column 10, cooling column 10 passes runner plate 7, well template 2, heat insulating board 4 and hot plate 3, thereby communicate with lower bolster 5, set up the discharge opening 12 corresponding with the cold flow hole on the lower bolster 5, cooling column 10 overlaps and is equipped with radiation shield 20, cold flow mouth 21 has been seted up to the both sides of radiation shield 20's upper end.

Referring to fig. 1, 7 and 8, a plurality of cold flow holes are formed in the mold plate 2, cold flow pipes 13 are arranged in the cold flow holes, cooling oil flows in the cold flow pipes 13, and the cold flow pipes 13 are attached to the cooling grooves 14 on the cooling column 10 through cold flow ports 21 on the heat insulating sleeve 20, so that the cooling of the cooling column 10 is accelerated.

Referring to fig. 7 and 8, the lower extreme of cooling column 10 is connected with ejection of compact cover 22, ejection of compact cover 22 and cooling column 10 interference fit, the lower extreme of ejection of compact cover 22 is connected with ejection of compact mouth 23, ejection of compact mouth 23 and ejection of compact cover 22 interference fit, be equipped with elastic gasket 24 between ejection of compact mouth 23 and the ejection of compact cover 22, elastic gasket 24 one side is protruding one side is sunken, one side that two elastic gasket 24 are sunken is laminated each other and is constituteed a set ofly, be equipped with two sets of four elastic gasket 24 altogether, respectively support ejection of compact cover 22 and ejection of compact mouth 23, ejection of compact mouth 23 is linked together with discharge opening 12 on the lower bolster 5, thereby rubber flows into ejection of compact mouth 23 again from discharge opening 12 in following cooling hole 11 and flows to in the next mould with lower bolster 5 complex.

Referring to fig. 1, 4 and 6, a detaching assembly is arranged on the heating plate 3, the detaching assembly includes a fixed column 15 and a movable rod 16, one end of the fixed column 15 is placed in the heating plate 3 and is matched with a groove formed in the heating plate 3, a fixing hole matched with the fixed column 15 is formed in the heat insulation plate 4 and the middle template 2, the fixed column 15 is inserted into the heat insulation plate 4 and the middle template 2 through the fixing hole, a through hole matched with the movable rod 16 is formed in the upper portion of the fixed column 15, an insertion hole through which the movable rod 16 can pass is formed in one side of the middle template 2, the insertion hole is coaxially arranged with the through hole in the fixed column 15, a limiting piece 17 is arranged at one end of the movable rod 16, the movable rod 16 is inserted into the fixed through hole through the insertion hole, so as to fix the position between the heating plate 3, the heat insulation plate 4 and the middle template 2, and when the movable rod 16 is pulled out of the fixed through hole, the heating plate 3, 4, and the movable rod 16 can be conveniently pulled out of the fixed through hole, The heat insulation plate 4 and the middle template 2 are mutually detached, one end of the movable rod 16 close to the limiting sheet 17 is provided with a drawing handle 33, so that the movable rod 16 is conveniently drawn, the limiting sheet 17, the drawing handle 33 and the movable rod 16 are integrally formed, when the movable rod 16 is completely inserted into the middle template 2 and passes through the through hole of the fixed column 15, one end of the movable rod 16 far away from the limiting sheet 17 is flush with one side of the middle template 2, meanwhile, one end of the movable rod 16 close to the limiting sheet 17 is abutted against the other side of the middle template 2 through the limiting sheet 17, so that the movable rod 16 is limited from being further inserted, one side of the middle template 2 close to the limiting sheet 17 is rotatably connected with a limiting hook 18 for limiting the position of the limiting sheet 17, the limiting hook 18 is rotatably connected with the middle template 2 through a bolt or a shaft fixed on one side of the middle template 2, when the limiting hook 18 rotates to one side of the limiting sheet 17, the limiting hook 18 is abutted against one side of the limiting sheet 17, thereby preventing the movable bar 16 from being separated from the middle mold plate 2 and the fixed bar 15, and thus ensuring stability of mutual positions of the heating panel 3, the insulation panel 4 and the middle mold plate 2.

Referring to fig. 4, the lower template 5, the heating plate 3 and the heat insulation plate 4 are provided with pin holes on the same vertical axis, and fixing pins 34 in interference fit with the pin holes are arranged in the pin holes, so as to fix the relative positions of the lower template 5, the heating plate 3 and the heat insulation plate 4.

Referring to fig. 1, 2 and 7, a plurality of heating rods 25 are uniformly distributed in the heating plate 3, one end of each heating rod 25 is connected with a power supply, and the heating rods 25 generate heat, so that the heat is conducted into the heating plate 3, and the rubber flowing out of the discharge hole 12 is cured;

the upside bolted connection of well template 2 has the reference column, and the downside bolted connection of cope match-plate pattern 1 has the position sleeve with reference column matched with, and when cope match-plate pattern 1 was placed on well template 2, the reference column inserted in the locating pin to accurate fixed well template 2 and cope match-plate pattern 1 position each other, a position sleeve and a reference column are a set of, and the difference bolt fastening is in the both sides of cope match-plate pattern 1 and well template 2.

Referring to fig. 1 and 5, four corners of the lower side of the middle formwork 2 are provided with pull-down threaded holes, the pull-down threaded holes are in threaded fit with pull-down bolts 31, bolt heads of the pull-down bolts 31 abut against the lower side of the heating plate 3, holes for accommodating the pull-down bolts 31 are formed in the heating plate 3 and the heat insulation plate 4, the pull-down bolts 31 can penetrate through the heat insulation plate 4 and the heating plate 3, and then an abutting piece 32 is placed on one side, close to the heating plate 3, of the bolt heads of the pull-down bolts 31, so that the pull-down bolts 31 can abut against the lower side of the heating plate 3 through the abutting piece 32, the lower side of the middle formwork 2 is pressed through the pull-down bolts 31, and the mutual positions of the middle formwork 2, the heat insulation plate 4 and the heating plate 3 are stabilized.

Referring to fig. 1, the lower side surface of the lower template 5 is bolted with guide posts 28 and provided with guide holes, the guide posts 28 are used for fixing positions between other templates matched with the lower template 5, and the guide holes are also used for fixing and positioning the lower template 5 by other templates matched with the lower template 5.

The operation process comprises the following steps: rubber enters from the injection nozzle 9 and enters a runner formed by the runner plate 7 and the runner block 8, and the cold flow pipe 13 in the middle template 2 dissipates heat of the middle template 2, so that the temperature of the rubber entering the runner formed by the runner plate 7 and the runner block 8 is reduced, when the rubber enters the cooling column 10 along the runner, the cold flow pipe 13 is attached to the side wall of the cooling column 10, the cooling area is increased, the rubber is effectively and rapidly cooled again, and finally the rubber flows out through the discharge hole 12; when needs are dismantled to cope match-plate pattern 1, rotate spacing hook 18 and make it keep away from spacing piece 17, take movable rod 16 out, loosen pull-down bolt 31 soon, can dismantle, when still need dismantling heat insulating board 4 and hot plate 3, only need take off fixed pin 34 can, still be equipped with the bolt hole on cope match-plate pattern 1, well template 2, heat insulating board 4, hot plate 3 and the lower bolster 5 of this device in order to make things convenient for different user demands.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A rubber cold runner mold comprises an upper mold plate (1), a middle mold plate (2), a heating plate (3), a heat insulation plate (4) and a lower mold plate (5), wherein the middle mold plate (2) is arranged below the upper mold plate (1), the heat insulation plate (4) is arranged below the middle mold plate (2), the heating plate (3) is arranged below the heat insulation plate (4), and the lower mold plate (5) is arranged below the heating plate (3);

the middle template is characterized in that a runner sealing ring (6) is arranged in the middle template (2), a runner plate (7) is arranged in the runner sealing ring (6), a runner block (8) is embedded in the runner plate (7), and runner holes which are communicated with each other are formed in the runner plate (7) and the runner block (8);

the upper template (1) is provided with an injection nozzle (9), the injection nozzle (9) is communicated with a runner hole on the runner plate (7), the runner plate (7) is provided with a cooling column (10), the cooling column (10) is arranged at the four corners of the runner plate (7), the cooling column (10) is provided with a cooling hole (11), and the cooling hole (11) is communicated with the runner hole;

the lower template (5) is provided with a discharge hole (12), and the discharge hole (12) is communicated with a cooling hole (11) in the cooling column (10);

a cold flow hole is formed in the middle template (2), a cold flow pipe (13) is arranged in the cold flow hole, a cooling groove (14) is formed in the side wall of the cooling column (10), and the cold flow pipe (13) is attached to the cooling groove (14);

and a plurality of disassembling components are arranged on the heating plate (3).

2. The rubber cold runner mold as claimed in claim 1, wherein the dismounting assembly comprises a fixed column (15) and a movable rod (16), one end of the fixed column (15) is arranged in the heating plate (3), fixing holes matched with the fixed column (15) are formed in the heat insulation plate (4) and the middle mold plate (2), a through hole is formed in the upper portion of the fixed column (15), an insertion hole is formed in one side of the middle mold plate (2), the insertion hole and the through hole in the fixed column (15) are coaxial, and the movable rod (16) is inserted into the fixed through hole through the insertion hole.

3. The mold for the cold runner of rubber as claimed in claim 1, wherein the cooling column (10) is sleeved with a heat insulating sleeve (20), cold runner ports (21) are formed in two sides of the upper portion of the heat insulating sleeve (20), the cold runner pipe (13) is attached to a cooling groove (14) of the cooling column (10) through the cold runner ports (21), a discharging sleeve (22) is connected to the lower end of the cooling column (10), a discharging nozzle (23) is arranged in the discharging sleeve (22), an elastic gasket (24) is arranged between the discharging nozzle (23) and the discharging sleeve (22), the discharging nozzle (23) is communicated with the cooling hole (11), and the discharging nozzle (23) is communicated with the discharging hole (12).

4. The mold for the cold runner of rubber as claimed in claim 2, wherein one end of the movable rod (16) is provided with a limiting piece (17), one end of the movable rod (16) close to the limiting piece (17) is provided with a drawing handle (33), one end of the movable rod (16) far away from the limiting piece (17) is flush with one side of the middle mold plate (2), one end of the movable rod (16) close to the limiting piece (17) is abutted against the other side of the middle mold plate (2) through the limiting piece (17), one side of the middle mold plate (2) close to the limiting piece (17) is rotatably connected with a limiting hook (18) for limiting the position of the limiting piece (17), and the limiting hook (18) is abutted against the limiting piece (17).

5. A cold runner rubber moulding tool according to claim 2, wherein a plurality of evenly distributed heating rods (25) are provided in the heating plate (3).

6. The rubber cold runner mold as claimed in claim 2, wherein the upper side of the middle mold plate (2) is connected with a positioning column, and the lower side of the upper mold plate (1) is provided with a positioning sleeve matched with the positioning column.

7. The rubber cold runner mold as claimed in claim 2, wherein the lower side surface of the lower mold plate (5) is provided with guide columns (28), and the lower side surface of the lower mold plate (5) is provided with guide holes.

8. The rubber cold runner mold as claimed in claim 2, wherein each of the four corners of the lower side of the middle mold plate (2) is provided with a pull-down threaded hole, a plurality of pull-down threaded holes are in threaded fit with pull-down bolts (31), and the pull-down bolts (31) are abutted against the lower side surface of the heating plate (3).