CN210758918U - Plastic mold for producing polyurethane sealing ring - Google Patents

Abstract

The utility model relates to the technical field of polyurethane seal ring production, in particular to a plastic mold for polyurethane seal ring production, which comprises a female mold, wherein a plurality of forming cavities arranged in a matrix form are arranged on the front side surface of the female mold, a rectangular groove is also arranged inside the female mold, and two grooves which are symmetrical with each other and are communicated with the outside are arranged on the groove wall on the rear side of the rectangular groove; the female die is also provided with a material pushing device, the material pushing device comprises a material pushing plate arranged in the rectangular groove and a hydraulic cylinder arranged in the groove, the tail ends of the four convex columns positioned in the same forming cavity are provided with material pushing convex rings, and the material pushing convex rings are in sliding connection with the forming cavity. The utility model discloses labour saving and time saving, easy operation is swift, is convenient for carry out the work of unloading of drawing of patterns, offers convenience for the user.

Description

Plastic mold for producing polyurethane sealing ring

Technical Field

The utility model relates to a polyurethane sealing washer production technical field, specifically speaking relates to a plastic mould is used in polyurethane sealing washer production.

Background

The usage of polyurethane sealing washer in the life is more extensive, when producing preparation polyurethane sealing washer, need use the plastic mould that corresponds, but general polyurethane sealing washer production is with plastic mould when using, and it has not been convenient for will mould the defect of giving the taking out, and then brings certain inconvenience for the staff.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a production of polyurethane sealing washer is with mouldable mould to solve certain or some defect that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the plastic mold for producing the polyurethane sealing ring comprises a female mold, wherein a plurality of forming cavities which are arranged in a matrix form are arranged on the front side surface of the female mold, four through holes which are arranged in an annular and equidistant manner and are communicated with the outside are formed in the cavity wall of the rear side of each forming cavity, a rectangular groove is further formed in the female mold, the through holes are communicated with the rectangular groove, and two grooves which are symmetrical to each other and are communicated with the outside are formed in the groove wall of the rear side of the rectangular groove; still be equipped with blevile of push on the die, blevile of push is in including setting up scraping wings and the setting of rectangular channel are in pneumatic cylinder in the recess, scraping wings with sliding connection between the rectangular channel, scraping wings welded closely the telescopic shaft end of pneumatic cylinder, it is just right on the leading flank of scraping wings the position of through-hole has closely welded fixed connecting rod, keeps away from scraping wings fixed connecting rod's end is equipped with the projection, the projection pass the through-hole and with sliding connection between the through-hole, be located four of same shaping cavity the end of projection is equipped with pushes away the material bulge loop, it is located to push away the material bulge loop in the shaping cavity, push away the material bulge loop with sliding connection between the shaping cavity.

Preferably, four corner positions of the female die are provided with guide holes which are arranged along the width direction of the female die and communicated with the outside, so that the positioning and die assembly can be conveniently carried out in the die assembly process.

Preferably, the fixed base on the hydraulic cylinder is fixedly installed on the groove wall of the groove through a plurality of fastening bolts, so that the hydraulic cylinder is conveniently installed.

Preferably, a male die fixing plate is further arranged on the front side of the female die, a guide pillar is arranged on the male die fixing plate and is opposite to the guide hole, and the guide pillar is in inserting fit with the guide hole corresponding to the guide pillar, so that the male die fixing plate and the female die are guaranteed to be more accurate in position and free of deviation when the male die fixing plate and the female die are assembled.

Preferably, a male die is arranged on the male die fixing plate at a position opposite to the forming chamber, the male die is in insertion fit with the forming chamber, and the male die is in insertion fit with the through hole in the pushing convex ring, so that when the male die is in contact with the wall of the forming chamber, a cavity formed by the polyurethane sealing ring is just formed between the annular side face of the male die and the wall of the forming chamber.

Preferably, the hydraulic cylinder is further provided with a heat dissipation copper sheet, and the surface of the heat dissipation copper sheet is provided with a plurality of heat dissipation fins which are linearly arranged at equal intervals, so that the heat dissipation effect of the hydraulic cylinder is improved, and the service life of the hydraulic cylinder is prolonged.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a blevile of push that sets up, when carrying out the drawing of patterns, can utilize pneumatic cylinder work, it removes to drive the scraping wings, further drive fixed connecting rod, the projection with push away the direction motion of material bulge loop towards punch plate, the realization will be in the shaping cavity in already fashioned polyurethane sealing washer give release, thereby accomplish and unload, be convenient for give taking out with moulding, convenient operation, the production of having solved general polyurethane sealing washer is with moulding the mould of moulding when using, it has the defect of being not convenient for will moulding for taking out, and then bring certain inconvenient problem for the staff.

2. The utility model discloses a radiating copper sheet and the heat radiation fins who sets up improve the radiating effect of pneumatic cylinder, do benefit to the life of extension pneumatic cylinder, have solved general polyurethane sealing washer production with can the shaping mould when using, the radiating effect of pneumatic cylinder on it is relatively poor, is unfavorable for prolonging its life's problem.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an exploded view of the present invention;

FIG. 3 is a cross-sectional view of the female die of the present invention;

fig. 4 is a rear view of the male die holder of the present invention;

FIG. 5 is an exploded view of the pushing device of the present invention;

fig. 6 is a schematic structural view of the heat sink copper sheet and the heat sink fins of the present invention.

In the figure: 1. a female die; 10. a guide hole; 11. a molding chamber; 111. a through hole; 12. a rectangular groove; 13. a groove; 14. a male die fixing plate; 141. a guide post; 142. a male die; 2. a material pushing device; 20. a material pushing plate; 21. a hydraulic cylinder; 22. fixing the connecting rod; 23. a convex column; 24. a material pushing convex ring; 3. a heat dissipation copper sheet; 30. and heat dissipation fins.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1-6, the present invention provides a technical solution:

a plastic mold for producing a polyurethane sealing ring is shown in figures 1 to 5 and comprises a female mold 1, wherein a plurality of forming cavities 11 arranged in a matrix form are arranged on the front side surface of the female mold 1, four annular through holes 111 which are arranged at equal intervals and communicated with the outside are arranged on the cavity wall of the rear side of each forming cavity 11, a rectangular groove 12 is further arranged inside the female mold 1, the through holes 111 are communicated with the rectangular groove 12, and two grooves 13 which are symmetrical to each other and communicated with the outside are arranged on the groove wall of the rear side of the rectangular groove 12; the female die 1 is also provided with a material pushing device 2, the material pushing device 2 comprises a material pushing plate 20 arranged in the rectangular groove 12 and a hydraulic cylinder 21 arranged in the groove 13, a fixed base on the hydraulic cylinder 21 is fixedly arranged on the groove wall of the groove 13 through a plurality of fastening bolts, a plurality of threaded holes communicated with the outside are arranged in the fixed base on the hydraulic cylinder 21, threaded holes communicated with the outside are also formed in the bottom wall of the groove 13, which is opposite to the threaded holes in the fixed base on the hydraulic cylinder 21, and then the fixed base on the hydraulic cylinder 21 is fixedly arranged on the bottom wall of the groove 13 through the fastening bolts, so that the hydraulic cylinder 21 is conveniently installed;

the material pushing plate 20 is in sliding connection with the rectangular groove 12, the material pushing plate 20 is tightly welded at the tail end of a telescopic shaft of the hydraulic cylinder 21, a fixed connecting rod 22 is tightly welded at a position, opposite to the through hole 111, on the front side surface of the material pushing plate 20, a convex column 23 is arranged at the tail end of the fixed connecting rod 22 far away from the material pushing plate 20, the convex column 23 penetrates through the through hole 111 and is in sliding connection with the through hole 111, meanwhile, the fixed connecting rod 22 can also move back and forth in the through hole 111, material pushing convex rings 24 are arranged at the tail ends of the four convex columns 23 in the same forming cavity 11, and the material pushing convex rings 24 and the convex columns 23 are in an integrated forming structure, so that the structure is; the material pushing convex ring 24 is located in the forming cavity 11, the material pushing convex ring 24 is in sliding connection with the forming cavity 11, and when the material pushing convex ring 24 moves along the notch of the forming cavity 11, plastic parts in the forming cavity 11 are ejected out, so that the material unloading work is facilitated, and convenience is brought to a user.

In the embodiment, the four corner parts of the female die 1 are provided with the guide holes 10 which are arranged along the width direction of the female die 1 and communicated with the outside, so that the positioning die assembly is convenient to perform during die assembly; the front side of the female die 1 is also provided with a male die fixing plate 14, the male die fixing plate 14 is tightly welded on a telescopic shaft of a hydraulic rod on an external rack, a guide pillar 141 is arranged at a position, which is opposite to the guide hole 10, on the male die fixing plate 14, the guide pillar 141 is in inserting fit with the guide hole 10 corresponding to the guide pillar 141, and when the male die fixing plate 14 and the female die 1 are assembled, the position is more accurate and deviation cannot occur.

Specifically, the male die 142 is arranged on the position, opposite to the forming chamber 11, of the male die fixing plate 14, the male die 142 is in insertion fit with the forming chamber 11, and the male die 142 is also in insertion fit with the through hole in the pushing convex ring 24, so that when the male die 142 contacts with the rear side cavity wall of the forming chamber 11, a cavity for forming the polyurethane sealing ring is just formed between the annular side surface of the male die 142 and the cavity wall of the forming chamber 11, and the polyurethane sealing ring is conveniently formed.

Furthermore, the hydraulic cylinder 151 may be a PBC series hydraulic cylinder manufactured by shanghai iron concretion automation equipment ltd, and its matching circuit and power supply are also provided by the manufacturer; furthermore, the utility model discloses in relate to circuit and electronic components and module be prior art, the technical staff in the field can realize completely, no longer gives unnecessary details here, the utility model discloses the content of protection also does not relate to the improvement to software and method.

In this embodiment, through the blevile of push 2 that sets up, be convenient for utilize pneumatic cylinder 21 work to drive and push away material bulge loop 24 and remove along 11 notch positions of shaping cavity, realize giving ejecting with moulding in the shaping cavity 11, conveniently unload work, solved general polyurethane sealing washer production with mouldable mould when using, it has the defect that will mould the piece and give taking out not convenient for, and then bring certain inconvenient problem for the staff.

In the concrete operation, in order to improve the heat dissipation effect of the hydraulic cylinder 21, therefore, the hydraulic cylinder 21 is improved on the basis of the above scheme, as shown in fig. 6, the hydraulic cylinder 21 is further tightly welded with the heat dissipation copper sheets 3, the surface of the heat dissipation copper sheets 3 is provided with a plurality of heat dissipation fins 30 which are linearly arranged at equal intervals, the heat dissipation fins 30 and the heat dissipation copper sheets 3 are of an integrally formed structure, the contact area between the heat dissipation copper sheets 3 and the air is increased through the arranged heat dissipation fins 30, so that the heat can be timely transmitted to the outside air, the heat dissipation effect of the hydraulic cylinder 21 is improved, the service life of the hydraulic cylinder 21 is favorably prolonged, and the problems that the heat dissipation effect of the hydraulic cylinder on the plastic mold for producing the polyurethane sealing ring is poor and the service life of the plastic mold is not.

The utility model discloses a plastic mould is used in production of polyurethane sealing washer is when using, after moulding in shaping cavity 11, punch holder 14 moves towards the direction of keeping away from die 1 along with the telescopic shaft of the hydraulic stem on the external frame shortens, after punch holder 14 moves to suitable position, start pneumatic cylinder 21 and make its work, the telescopic shaft extension on pneumatic cylinder 21 drives scraping wings 20, fixed connecting rod 22, projection 23 and pushes away material bulge loop 24 and move towards the notch position of shaping cavity 11, when pushing away material bulge loop 24 and moving, realize giving ejecting with the plastics in shaping cavity 11, conveniently carry out the work of unloading, after unloading, continue to start pneumatic cylinder 21 and make its work, the telescopic shaft on it shortens, drive scraping wings 20, fixed connecting rod 22, projection 23 and push away material bulge loop 24 and move backward, when pushing away material bulge loop 24 and moving to contact with the rear side cavity wall of shaping cavity 11, stop starting external pneumatic cylinder 21, continue again carry on next injection moulding can, solved general polyurethane sealing washer production with can mould the mould when using, it has not been convenient for will mould the defect of giving the taking out, and then brings certain inconvenient problem for the staff.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. The utility model provides a polyurethane sealing washer production is with mouldable mould, includes die (1), its characterized in that: the die is characterized in that a plurality of forming cavities (11) arranged in a matrix form are arranged on the front side face of the female die (1), four through holes (111) which are arranged in an annular and equidistant manner and communicated with the outside are formed in the rear side cavity wall of the forming cavities (11), a rectangular groove (12) is further formed in the female die (1), the through holes (111) are communicated with the rectangular groove (12), and two grooves (13) which are symmetrical to each other and communicated with the outside are formed in the rear side groove wall of the rectangular groove (12); the die (1) is further provided with a material pushing device (2), the material pushing device (2) comprises a material pushing plate (20) arranged in the rectangular groove (12) and a hydraulic cylinder (21) arranged in the groove (13), the material pushing plate (20) is in sliding connection with the rectangular groove (12), the material pushing plate (20) is tightly welded at the tail end of a telescopic shaft of the hydraulic cylinder (21), a fixed connecting rod (22) is tightly welded at the position, right opposite to the through hole (111), on the front side surface of the material pushing plate (20), the tail end of the fixed connecting rod (22) far away from the material pushing plate (20) is provided with a convex column (23), the convex column (23) penetrates through the through hole (111) and is in sliding connection with the through hole (111), the tail ends of the four convex columns (23) positioned in the same forming cavity (11) are provided with material pushing rings (24), and the material pushing convex rings (24) are positioned in the forming cavity (11), the material pushing convex ring (24) is connected with the forming cavity (11) in a sliding mode.

2. The moldable mold for producing a polyurethane sealing ring according to claim 1, wherein: four corner positions of the female die (1) are provided with guide holes (10) which are arranged along the width direction of the female die (1) and communicated with the outside.

3. The moldable mold for producing a polyurethane sealing ring according to claim 1, wherein: and a fixed base on the hydraulic cylinder (21) is fixedly arranged on the groove wall of the groove (13) through a plurality of fastening bolts.

4. The moldable mold for producing a polyurethane sealing ring according to claim 2, wherein: the front side of the female die (1) is further provided with a male die fixing plate (14), a guide post (141) is arranged on the male die fixing plate (14) opposite to the guide hole (10), and the guide post (141) is in insertion fit with the guide hole (10) corresponding to the guide post.

5. The moldable mold for producing a polyurethane sealing ring according to claim 4, wherein: a male die (142) is arranged on the position, opposite to the forming chamber (11), of the male die fixing plate (14), the male die (142) is in plug fit with the forming chamber (11), and the male die (142) is in plug fit with a through hole in the material pushing convex ring (24).

6. The moldable mold for producing a polyurethane sealing ring according to claim 1, wherein: the hydraulic cylinder (21) is further provided with a heat dissipation copper sheet (3), and the surface of the heat dissipation copper sheet (3) is provided with a plurality of heat dissipation fins (30) which are linearly arranged at equal intervals.

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