CN216100159U

CN216100159U - Rubber part injection mold

Info

Publication number: CN216100159U
Application number: CN202122323856.0U
Authority: CN
Inventors: 董凯; 陈辉
Original assignee: Shanghai Taiyi Industrial Co ltd
Current assignee: Shanghai Taiyi Industrial Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-03-22
Anticipated expiration: 2031-09-24

Abstract

The utility model relates to a rubber part injection mold, which belongs to the field of injection molds, and the key points of the technical scheme are as follows: the mould comprises a frame and an upper mould arranged at the top of the frame, wherein upper cavities arranged in an array manner are arranged at the bottom of the upper mould, a bearing platform is connected at the bottom of the frame in a sliding manner, a lower mould is arranged on the bearing platform, a lower cavity corresponding to the upper cavity is arranged on the bearing surface of the lower mould, a through hole is formed in the bottom of the lower cavity, an ejector rod is connected in the through hole in a sliding manner, a mould core is fixedly connected to the top of the ejector rod, the mould core is movably arranged in the lower cavity, a limiting component used for limiting the position of the mould core is arranged at the bottom of the lower mould, and a driving component used for driving the bearing platform to move is arranged at the bottom of the frame.

Description

Rubber part injection mold

Technical Field

The utility model relates to the field of injection molds, in particular to a rubber part injection mold.

Background

In recent years, the development of the injection mold industry in China is very rapid, the development speed is higher than the overall development speed of the industry, and the injection mold is a tool for producing rubber products and is also a tool for endowing the rubber products with complete structures and accurate sizes.

At present, a traditional injection mold comprises a frame, an upper mold is fixedly connected to the top of the frame, upper cavities arranged in an array are arranged on the bottom surface of the upper mold, a bearing table is slidably connected to the bottom of the frame, a driving device for driving the bearing table to lift is installed below the bearing table, a lower mold is fixedly connected to the bearing table, lower cavities corresponding to the upper cavities are arranged on the bearing surface of the lower mold, through holes are formed in the bottom of the lower cavities, ejector rods are slidably connected in the through holes, a power device for driving the ejector rods to move is installed on the bearing table, injection grooves arranged in an array are arranged between the lower cavities, the injection grooves are communicated with the lower cavities, the bottom of each injection groove is connected with an injection molding machine through a runner, during production, the driving device is started first, the bearing table is driven by the driving device to move upwards until the lower mold and the upper mold are closed to form a complete cavity, molten rubber flows into the injection grooves through the runner, and then the rubber flows into the cavity from the injection groove, the cavity is continuously pressurized until the rubber is gradually solidified, the rubber part is basically molded after being cooled for a period of time, at the moment, the bearing table is driven by the driving device to move downwards, the lower die is separated from the upper die, the power device is started, the ejector rod is driven by the power device to move in the through hole, the rubber part is ejected out of the lower cavity by the ejector rod, and the rubber part is recovered.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the rubber part is directly ejected out from the lower cavity through the ejector rod, the rubber part is extremely easy to damage due to the fact that the impact force of the ejector rod is large and the contact area between the top of the ejector rod and the rubber part is small, on the other hand, the rubber part is ejected out from the lower cavity, and the rubber part is completely scattered on the bearing surface of the lower die and is not beneficial to recovery.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems that a rubber piece is easy to damage and inconvenient to recover in the process of ejecting the rubber piece from a lower cavity, the utility model provides the rubber piece injection mold.

The application provides a rubber spare injection mold adopts following technical scheme:

a rubber part injection mold comprising: the mould comprises a frame and an upper mould arranged at the top of the frame, wherein the upper mould bottom is provided with an upper cavity arranged in an array, the bottom of the frame is slidably connected with a bearing platform, the bearing platform is provided with a lower mould, the bearing surface of the lower mould is provided with a lower cavity corresponding to the upper cavity, the bottom of the lower cavity is provided with a through hole, the through hole is slidably connected with a mandril, the top of the mandril is fixedly connected with a mould core, the mould core is movably arranged in the lower cavity, the bottom of the lower mould is provided with a limiting component used for limiting the position of the mould core, and the bottom of the frame is provided with a driving component used for driving the bearing platform to move.

Through adopting above-mentioned technical scheme, after the laminating of upper die and lower mould, it forms a closed die cavity with lower die cavity to go up the die cavity, at this moment, the core is located the die cavity, clearance fit between core and the die cavity, molten rubber flows into the die cavity, form the rubber spare after the cooling shaping, the core is located the cavity of rubber spare, drive assembly drive plummer descends, the plummer drives the lower mould and descends, after descending to the predetermined position, spacing subassembly passes through the ejector pin and jacks up the core, the core jacks up the rubber spare, the rubber spare separates with lower die cavity, it can to take out the rubber spare.

The utility model further provides that: the limiting assembly comprises a cavity arranged at the bottom of the lower die, a push plate is fixedly connected to the bottom of the ejector rod, the push plate is movably arranged in the cavity, two ends of the push plate are respectively connected with limiting plates, and the frame is provided with two symmetrical cross beams fixedly connected below the limiting plates.

Through adopting above-mentioned technical scheme, the drive assembly drive plummer descends, and the plummer drives the lower mould and descends, and when the bottom of limiting plate contacted with the crossbeam, limiting plate, push pedal, the rubber spare on ejector pin and the core stopped descending, and plummer and lower mould continue to descend, so the push pedal relatively rises in the cavity, and the ejector pin relatively rises in the through-hole, and the core jacks up the rubber spare, and the rubber spare separates with lower die cavity, stops after descending to predetermined position, retrieve the rubber spare can.

The utility model further provides that: the cavity is divided into two symmetrical parts, the push plates are divided into two symmetrical parts, the two push plates are respectively movably positioned in the two cavities, and two sides of each push plate are in contact with the inner wall of the cavity.

By adopting the technical scheme, the inner wall of the cavity is contacted with the two sides of the push plate, so that the cavity plays a role in limiting the push plate, and the push plate is prevented from deviating from a preset position in the relative rising process in the cavity.

The utility model further provides that: and a support is arranged at the bottom of the ejector rod.

Through adopting above-mentioned technical scheme, the area of contact between ejector pin bottom and the push pedal has been increased in the setting of support, makes the ejector pin fixed more firm, removes the in-process and can not rock.

The utility model further provides that: the driving assembly comprises a plurality of synchronous motors arranged at the bottom of the rack, a lead screw is connected to an output shaft of each synchronous motor, and the lead screw vertically penetrates through the bearing table and is in threaded connection with the bearing table.

By adopting the technical scheme, after the synchronous motor is started, the output shaft of the synchronous motor drives the screw rod to rotate, and the screw rod drives the bearing table to lift due to the threaded connection between the screw rod and the bearing table.

The utility model further provides that: the bearing plate is fixedly connected to the bearing table, the lower die is connected to the bearing plate through a fixing piece, a plurality of convex plates are arranged on the side edge of the lower die, openings are formed in the convex plates, mounting holes are formed in the bearing plate, and the fixing piece penetrates through the openings and the mounting holes to fix the lower die to the bearing plate.

Through adopting above-mentioned technical scheme, the mounting passes opening and mounting hole and is fixed in the loading board with the lower mould on, and is stable firm, the dismouting of being convenient for.

The utility model further provides that: the mounting hole is a strip-shaped hole, and one side of the mounting hole, which is far away from the lower die, is open.

Through adopting above-mentioned technical scheme, the lower mould passes through the bar hole and can adjust mounted position on the loading board, further increases application scope.

The utility model further provides that: and the bottom of the limiting plate is provided with a damping layer.

Through adopting above-mentioned technical scheme, when limiting plate bottom and crossbeam contacted, played the cushioning effect, increase of service life.

In conclusion, the utility model has the following beneficial effects:

through the setting of spacing subassembly, spacing subassembly accessible ejector pin is with the core jack-up, makes the rubber spare on the core and separates with lower die cavity, and the core contacts with the cavity inner wall of rubber spare, because area of contact is big, is difficult for damaging the rubber spare, with rubber spare jack-up back, the rubber spare still cup joints on the core, can not scatter on the loading end of lower mould, the follow-up recovery of being convenient for.

Drawings

FIG. 1 is a top view of the overall structure of an embodiment of the present invention;

FIG. 2 is a bottom view of the overall structure of an embodiment of the present invention;

FIG. 3 is a partially enlarged view of the carrier plate according to the embodiment of the utility model.

Description of reference numerals:

1. a frame; 11. a synchronous motor; 12. a screw rod; 2. an upper die; 3. an upper cavity; 4. a bearing table; 41. a carrier plate; 42. a fixing member; 43. a convex plate; 44. opening the gap; 45. mounting holes; 5. a lower die; 51. a cavity; 52. pushing the plate; 53. a limiting plate; 54. a cross beam; 55. a support; 56. a shock-absorbing layer; 6. a lower cavity; 7. a through hole; 8. a top rod; 9. and (3) a core.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

In this embodiment: a rubber member injection mold, referring to fig. 1 and 2, comprising: frame 1 and install in the last mould 2 at frame 1 top, go up fixed connection between mould 2 and the frame 1, go up mould 2 bottom and be equipped with the last die cavity 3 that the array was arranged, go up die cavity 3 and divide into two sets of and symmetric distribution, every sixteen of group (because visual angle problem, the attached drawing can not all show).

The bottom of the frame 1 is slidably connected with a bearing platform 4, four synchronous motors 11 are arranged below the bearing platform 4 at the bottom of the frame 1, output shafts of the synchronous motors 11 are connected with lead screws 12, the lead screws 12 vertically penetrate through the bearing platform 4 and are in threaded connection with the bearing platform 4, lower dies 5 are arranged on the bearing platform 4, the bearing platform 4 can drive the lower dies 5 to move, and lower die cavities 6 corresponding to the upper die cavities 3 are arranged on the bearing surface of the lower dies 5.

Lower die cavity 6 bottom is equipped with through-hole 7, sliding connection has ejector pin 8 in the through-hole 7, the top fixedly connected with core 9 of ejector pin 8, the activity of core 9 is located die cavity 6 down, 5 bottoms of lower mould are equipped with

cavity

51, 8 bottom fixedly connected with push pedal 52 of ejector pin, it explains that, 8 bottoms of ejector pin are equipped with support 55, support 55 is the round platform form, support 55 contacts with push pedal 52, the benefit that sets up like this lies in, support 55 has increased the area of contact between 8 bottoms of ejector pin and the push pedal 52, it is more firm to make ejector pin 8 fixed, ejector pin 8 removes the in-process and can not rock in through-hole 7.

The activity of push pedal 52 is located cavity 51, and push pedal 52 both ends are connected with limiting plate 53 respectively, are connected through the screw rod between push pedal 52 and the limiting plate 53, and the dismouting of being convenient for is located the welding of limiting plate 53 below on the frame 1 and has the crossbeam 54 of bisymmetry, and limiting plate 53 bottom subsides are equipped with buffer layer 56, and buffer layer 56 is the rubber pad, produces the collision when avoiding limiting plate 53 and crossbeam 54 to contact.

It should be noted that the cavity 51 is divided into two symmetrical parts corresponding to the two sets of lower cavities 6, the push plate 52 is also divided into two symmetrical parts, the two push plates 52 are respectively and movably located in the two cavities 51, and two sides of the push plate 52 are in contact with the inner wall of the cavity 51, so that the arrangement has the advantages that the inner wall of the cavity 51 is in contact with two sides of the push plate 52, the cavity 51 plays a limiting role on the push plate 52, the push plate 52 is prevented from deviating from a preset position in the relative lifting process in the cavity 51, and the stability is stronger.

When rubber parts are produced, firstly, the four synchronous motors 11 are started, the output shafts of the synchronous motors 11 drive the screw rods 12 to rotate, the screw rods 12 are in threaded connection with the bearing table 4, the bearing table 4 is driven by the screw rods 12 to ascend, the lower die 5 is driven by the bearing table 4 to ascend, when the upper die 2 is attached to the lower die 5, the upper die cavity 3 and the lower die cavity 6 form a closed die cavity, at the moment, the die core 9 is located in the die cavity, the die core 9 is in clearance fit with the die cavity, and the push plate 52 is located on the bearing surface of the bearing table 4.

Molten rubber flows into the cavity through the injection groove, the cavity is continuously pressurized after injection is completed until the rubber is gradually solidified, and finally, a rubber part is formed after cooling treatment, and at the moment, the mold core 9 is positioned in the cavity of the rubber part.

Then the synchronous motor 11 drives the bearing platform 4 to descend, the bearing platform 4 drives the lower die 5 to descend, when the bottom of the limiting plate 53 is in contact with the cross beam 54, the limiting plate 53, the push plate 52, the ejector rod 8 and the rubber part on the mold core 9 stop descending, and the bearing platform 4 and the lower die 5 continue descending, so that the push plate 52 relatively ascends in the cavity 51, the ejector rod 8 relatively ascends in the through hole 7, the mold core 9 jacks up the rubber part, the rubber part is separated from the lower mold cavity 6, and when the position is descended to a preset position, the rubber part is stopped and recovered.

Referring to fig. 1 and 3, in the long-term use process, there is a slight displacement between the upper mold 2 and the lower mold 5, so that the upper cavity 3 and the lower cavity 6 cannot be aligned, in order to adjust the position of the lower mold 5, a bearing plate 41 is connected to the bearing table 4 through a screw, and the lower mold 5 is connected to the bearing plate 41 through a fixing member 42.

Four convex plates 43 are arranged on the side edge of the lower die 5, openings 44 are formed in the convex plates 43, mounting holes 45 are formed in the bearing plate 41, the mounting holes 45 are strip-shaped holes, one side, away from the lower die 5, of each mounting hole 45 is open, the mounting holes 45 correspond to the openings 44, and the fixing piece 42 penetrates through the openings 44 and the mounting holes 45 to fix the lower die 5 on the bearing plate 41.

When the lower die 5 is installed, the position of the lower die 5 is firstly adjusted, at this time, the notch 44 and the installation hole 45 are ensured to be on the same straight line, and then the fixing piece 42 penetrates through the notch 44 and the installation hole 45 to fix the lower die 5 on the bearing plate 41.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A rubber member injection mold, comprising: frame (1) and install in last mould (2) at frame (1) top, it is equipped with last die cavity (3) that the array was arranged to go up mould (2) bottom, frame (1) bottom sliding connection has plummer (4), install lower mould (5) on plummer (4), be equipped with lower die cavity (6) corresponding with last die cavity (3) on the bearing surface of lower mould (5), die cavity (6) bottom is equipped with through-hole (7) down, sliding connection has ejector pin (8) in through-hole (7), the top fixedly connected with core (9) of ejector pin (8), core (9) activity is located down in die cavity (6), lower mould (5) bottom is equipped with the spacing subassembly that is used for restricting core (9) position, frame (1) bottom is equipped with the drive assembly who is used for driving plummer (4) removal.

2. The rubber member injection mold according to claim 1, wherein: spacing subassembly is including cavity (51) of locating lower mould (5) bottom, ejector pin (8) bottom fixedly connected with push pedal (52), push pedal (52) activity is located cavity (51), push pedal (52) both ends are connected with limiting plate (53) respectively, lie in crossbeam (54) of limiting plate (53) below fixedly connected with bisymmetry on frame (1).

3. The rubber member injection mold according to claim 2, wherein: the cavity (51) is divided into two symmetrical parts, the push plates (52) are divided into two symmetrical parts, the two push plates (52) are movably positioned in the two cavities (51) respectively, and two sides of each push plate (52) are in contact with the inner wall of each cavity (51).

4. The rubber member injection mold according to claim 1, wherein: and a support (55) is arranged at the bottom of the ejector rod (8).

5. The rubber member injection mold according to claim 1, wherein: the driving assembly comprises a plurality of synchronous motors (11) installed at the bottom of the rack (1), a screw rod (12) is connected to an output shaft of each synchronous motor (11), and the screw rod (12) vertically penetrates through the bearing table (4) and is in threaded connection with the bearing table (4).

6. The rubber member injection mold according to claim 1, wherein: fixedly connected with loading board (41) on plummer (4), lower mould (5) are connected on loading board (41) through mounting (42), be equipped with a plurality of flange (43) on the side of lower mould (5), be equipped with opening (44) on flange (43), be equipped with mounting hole (45) on loading board (41), mounting (42) pass opening (44) and mounting hole (45) are fixed in on loading board (41) lower mould (5).

7. The rubber member injection mold according to claim 6, wherein: mounting hole (45) are the bar hole, one side that lower mould (5) were kept away from in mounting hole (45) is uncovered setting.

8. The rubber member injection mold according to claim 2, wherein: and a damping layer (56) is arranged at the bottom of the limiting plate (53).