CN217916347U - Vulcanization mould of rubber shock attenuation coupling axle - Google Patents

Abstract

The utility model relates to a vulcanization mould utensil of rubber shock attenuation connection axle, including the cope match-plate pattern, well template and lower bolster, the cope match-plate pattern, well template and lower bolster fit in are equipped with a plurality of die cavitys, the both sides of every nib diameter direction of downside of well template are equipped with fixed abaculus respectively, the both sides of every nib diameter direction of upside of well template are equipped with the activity abaculus respectively, the activity abaculus can overturn inlay the upside of dress in well template, the downside of cope match-plate pattern and the upside of lower bolster correspond the position of activity abaculus and fixed abaculus and are equipped with guide pit and lower guide pit respectively, cope match-plate pattern downside and lower die hole upside periphery are equipped with the curved protruding muscle section one that is used for sealing up the rubber annulus upper junction of coupling axle and end opening respectively, activity abaculus and fixed abaculus correspondence are equipped with curved protruding muscle section two, two sections protruding muscle section one and two sections interval distributions of same die cavity homonymy enclose and close the annular and seal in the annular of rubber annulus in order to take shape the concave arc along reason and the lower edge of rubber annulus.

Description

Vulcanization mould of rubber shock attenuation coupling axle

Technical Field

The utility model relates to a locomotive shock attenuation device field, in particular to vulcanization mould of rubber shock attenuation coupling axle.

Background

The rubber shock absorption connecting shaft is a shock absorption device which is applied to locomotives and rail transit vehicles more and is used for connection of shock absorption parts, the structure of the rubber shock absorption connecting shaft is shown in figure 1, the rubber shock absorption connecting shaft comprises a mandrel 1 and an outer sleeve 2, an annular space is arranged between the mandrel 1 and the outer sleeve 2 and is used for a vulcanized rubber layer, and the two ends of the rubber layer and the parallel and level parts of the end parts of the outer sleeve extrude to form an arc shape which is inwards concave.

The prior art, publication No. CN211105097U, which is a patent specification with a publication date of 28/7/2020, discloses an extrusion vulcanization mold for such a rubber damping coupling shaft (also referred to as a rubber joint), including a cover plate, an upper template, a middle template, a lower template, and a mold base, wherein a plurality of mold cavities are provided at positions of the upper template, the middle template, and the lower template corresponding to the mold cavities, an upper mold hole and a lower mold hole are respectively provided at positions of the template and the lower template corresponding to the mold cavities, and a protruding rib for sealing an upper opening and a lower opening of a rubber layer annulus of the rubber joint is provided at the periphery of the lower edge of the upper mold hole and the periphery of the upper edge of the lower mold hole; the middle template is provided with middle die holes corresponding to the positions of the die cavities respectively, and the lower side of the cover plate and the upper side of the die holder are provided with positioning holes which are matched and sleeved with two extending ends of the mandrel of the rubber joint respectively; the center of apron is equipped with the injecting glue hole, and the cope match-plate pattern is equipped with the cushion chamber with the position that the injecting glue hole corresponds, and the cope match-plate pattern upper surface is equipped with a plurality of injecting glue grooves, and the one end and the cushion chamber intercommunication in every injecting glue groove, the other end correspond with the rubber layer of the die cavity that corresponds and communicate with the rubber layer through the intercommunicating pore. This vulcanization mould utensil can the high-efficient vulcanization of a mould multicavity, to the compound die that the rubber joint of general structure can be convenient with divide the mould, nevertheless the journal position of the rubber shock attenuation joint axle of figure 1 is shorter, adopts above-mentioned vulcanization mould utensil structure, and the board of cope match-plate pattern and lower bolster is thick because of receiving the restriction of journal size, and the board is thick thinner, easy deformation to the drawing of patterns is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model discloses be used for short axle journal coupling axle extrusion easy template to warp to above-mentioned structure rubber joint vulcanization mould among the prior art, the inconvenient problem of drawing of patterns provides the vulcanization mould of the rubber shock attenuation coupling axle of an improvement structure to make things convenient for the vulcanization extrusion of the coupling axle of this type of structure to take shape.

The utility model aims to realize that the vulcanization mould of the rubber damping connecting shaft comprises an upper template, a middle template and a lower template, a plurality of mold cavities which are correspondingly arranged in rows and columns are arranged in the upper template, the middle template and the lower template in a matching way, guide posts are respectively arranged at four corners of the lower template, guide holes are respectively arranged at the corresponding positions of the middle template and the upper template in a matching way, guide sleeves are arranged in the guide holes, the guide post is matched with the guide sleeve for guiding the die assembly of the middle die and the upper die, a middle die hole is arranged at the middle die position corresponding to each die cavity, the middle template hole is used for being matched with an outer sleeve for installing a connecting shaft, the positions of the upper template and the lower template corresponding to the die cavities are respectively provided with an upper template hole and a lower template hole which are respectively used for fixing and sleeving two end parts of the mandrel, it is characterized in that both sides of each die hole in the diameter direction at the lower side of the middle template are respectively provided with a fixed embedded block, both sides of each die hole in the diameter direction at the upper side of the middle template are respectively provided with a movable embedded block, the movable embedded block is embedded on the upper side of the middle template in a turnover way, the fixed embedded block and the movable embedded block extend into the center direction of the middle template hole and are jointed with the shaft neck of the mandrel, the lower side of the upper template and the upper side of the lower template are respectively provided with an upper guide pit and a lower guide pit corresponding to the positions of the movable insert block and the fixed insert block, the peripheries of the lower side of the upper die hole and the upper side of the lower die hole corresponding to the same die cavity are respectively provided with a first arc-shaped convex rib section for sealing the upper opening and the lower opening of the rubber layer annulus of the coupling shaft, the movable embedded block and the fixed embedded block are also correspondingly provided with an arc-shaped convex rib section II corresponding to the annular space of the rubber layer, and the two sections of convex rib sections I and the two sections of convex rib sections which are on the same side of the same die cavity are distributed at intervals and surround to form an annular seal on the annular space of the rubber layer so as to form a concave arc-shaped upper edge and a concave arc-shaped lower edge of the rubber layer.

The utility model discloses a vulcanization mould utensil of rubber shock attenuation connection axle, for the drawing of patterns of facilitating, the mould structural design at the axle journal position of connection axle is the structure of activity abaculus and fixed abaculus, wherein fixed abaculus is fixed to be set up in well orifice outside of well template downside, its arc protruding muscle section two that upwards sets up and the annular space on the curved protruding muscle section interval distribution on the lower bolster on the outer cover lower extreme sealing rubber layer, and the concave arc mouth of rubber layer structure takes shape, equally, the activity abaculus sets up in well orifice outside of well template upside, the annular space of the curved protruding muscle section interval distribution on its arc protruding muscle section two that sets up downwards and the cope match-plate pattern on the overcoat, and the concave arc mouth of rubber layer structure takes shape, follow the annular space that mouthful extrusion injecting glue got into the rubber layer behind the compound die, realize the vulcanization extrusion on rubber layer, during the drawing of patterns, remove the cope match-plate pattern earlier, then overturn the activity abaculus on every die cavity, with the solution is fixed to the dabber upside of connection axle after vulcanizing, in order to be convenient for rotatory activity connection axle, in the submould, from taking out the connection axle in the centre orifice, the rubber shock attenuation axle is difficult to the compact of the rubber shock attenuation connection axle, only improve the compact structure, only the thickness template, the structure of the three-layer is guaranteed in the use, the template, the three-layer, the structure is deformed.

The installation of can overturning and with the direction cooperation of cope match-plate pattern for the activity abaculus of being convenient for, the position that the activity abaculus of well template upside corresponds is equipped with the caulking groove respectively, the cooperation of activity abaculus lower part inlays the dress in going up the caulking groove to one side that the lower part of caulking groove was kept away from well nib on the activity abaculus is equipped with the pivot of being convenient for the activity abaculus to the upset of well nib outside, it is equipped with the U-shaped axle chamber of being convenient for to hold the pivot in the both sides cell wall of the corresponding pivot of caulking groove respectively to go up, the U-shaped axle chamber outside is equipped with the flat head lid that is used for spacing pressure to hold the pivot.

Furthermore, the upper part and the lower part of the movable insert block along the height direction are respectively embedded in the upper template and the middle template, the upper part of one end far away from the center of the middle template hole is provided with a guide table protruding upwards, the periphery of the guide table is provided with guide taper, and the upper template is provided with an upper guide pit corresponding to the part of the movable insert block in a matching manner.

Furthermore, the die cavity is provided with a plurality of rows, each row is correspondingly provided with more than two die cavities, two movable embedded blocks and two fixed embedded blocks corresponding to each die cavity are arranged along the two sides of the diameter of the die cavity parallel to the direction of each row, and the upper embedded grooves on the upper side of the middle die plate corresponding to the same row are communicated along the row direction.

For the installation of fixed abaculus and the direction cooperation with the lower bolster, the outside that the fixed abaculus corresponds well nib is equipped with the boss of template in the embedding, well template lower surface corresponds and is equipped with down the caulking groove, the boss and the lower caulking groove cooperation of fixed abaculus inlay the dress to through the fix with screw, the cooperation of fixed abaculus downside inlays the dress in the lower bolster upper surface, the lower bolster corresponds the position and is equipped with down the guide hole.

The guide post on each corner of the four corners of the lower template respectively comprises a first guide post and a straight guide post, the height of the first guide post is greater than that of the straight guide post, the top of the first guide post is provided with a conical guide section, and guide holes are respectively arranged at the corresponding positions of the middle template and the upper template. When the die is closed, the guide hole on the template is firstly sleeved with the conical guide section at the top of the guide post in a guiding manner, and the straight guide post is aligned with the corresponding guide hole after the guide die is closed and moves downwards so as to guide the direction of the fixed die.

Drawings

Fig. 1 is a structural view of a rubber damper coupling shaft.

Fig. 2 is a perspective view of the vulcanizing mold of the rubber damping coupling shaft of the present invention.

Fig. 3 is a front view of the vulcanizing mold of the rubber damping coupling shaft of the present invention.

Fig. 4 is a cross-sectional view of fig. 3 taken along a plane in which the central axis of the mold cavity lies.

Fig. 5 is a perspective view of the upper mold plate.

Fig. 6 is a perspective view of the middle template.

FIG. 7 is a cross-sectional view of the center platen taken along the plane of the center axis of the mold cavity.

Fig. 8 is a sectional view of the middle mold plate taken along the plane of the center axis of the mold cavity showing the movable insert of one of the mold cavities in an inverted state.

Figure 9 is a front view of the lower platen.

Figure 10 is a perspective view of the lower template.

Fig. 11 isbase:Sub>A cross-sectional view taken alongbase:Sub>A-base:Sub>A of fig. 9.

Fig. 12 is a cross-sectional view taken along B-B of fig. 9.

1. A coupling shaft; 101, a first electrode and a second electrode; a mandrel; 102 a jacket; 103 a rubber layer; 2. mounting a template; 201 injecting glue holes; 202 is communicated with the groove; 203, punching a die hole; 204 convex rib section one; 205 a guide hole; 206, pit guiding; 3, preparing a template; 301, a central die hole; 302 a guide hole; 303, embedding a groove; 304 A U-shaped shaft cavity; 4, a lower template; 401 lower die hole; 402 guide the pillar first; 403 guide pillars; 404 a first rib section; a pit under 405; 5, movable embedded blocks; 501, a second convex rib section; 502 a guide table; 6, a rotating shaft; 7 fixing the embedded block; 701, a rib section II; a boss 702; 8, a screw; 9 a flat head cover.

Detailed Description

The following describes in detail a vulcanization mold structure of a rubber damper coupling shaft according to the present invention for vulcanization of a rubber layer of the coupling shaft shown in fig. 1 with reference to the drawings.

Fig. 2-10 show the structure of the vulcanizing mold of the rubber damping connecting shaft of the present invention, including an upper mold plate 2, a middle mold plate 3 and a lower mold plate 4, the upper mold plate 2, the middle mold plate 3 and the lower mold plate 4 are internally provided with a plurality of mold cavities arranged in corresponding rows and columns, four corners of the lower mold plate 4 are respectively provided with guide pillars, the positions corresponding to the middle mold plate 3 and the upper mold plate 2 are respectively provided with a guide hole 302 and a guide hole 205 in a matching manner, the guide holes are matched with the guide pillars in a guiding manner for mold closing guidance of the middle mold and the upper mold, wherein the guide pillars include each corner portion and are respectively provided with a guide pillar 402 and a guide pillar 403, the guide pillar 402 is sleeved in the initial stage of mold closing of the middle mold plate 3 and the upper mold plate 2 and then is guided into a guide shaft to a mold closing position in a limiting manner, and the guide pillar corresponds to the guide pillar to be accurately aligned in the mold closing process; a middle die hole 3 is formed in the middle die plate corresponding to each die cavity, the middle die hole 3 is used for being matched with the outer sleeve 102 for installing the connecting shaft, an upper die hole 203 and a lower die hole 401 are respectively formed in the positions, corresponding to the die cavities, of the upper die plate 2 and the lower die plate 3, and the upper die hole 203 and the lower die hole 401 are respectively used for fixing two end portions of the sleeving mandrel 101; the lower side of the middle template 3 is provided with two fixed embedded blocks 7 in the diameter direction of each middle template hole 301, the upper side of the middle template 3 is provided with two movable embedded blocks 5 in the diameter direction of each middle template hole 301, the movable embedded blocks 5 can be embedded on the upper side of the middle template 3 in a turnover mode, the fixed embedded blocks 7 and the movable embedded blocks 5 extend into the center direction of the middle template hole 301 and are attached to a shaft neck of a mandrel 101, the lower side of the upper template 2 and the upper side of the lower template 4 are provided with an upper guide pit 206 and a lower guide pit 405 corresponding to the positions of the movable embedded blocks 5 and the fixed embedded blocks 7 respectively, the upper guide pits and the lower guide pits are respectively matched with the convex parts of the embedded blocks for conducting and embedding when the mold is closed, the lower side of the upper template hole 203 and the upper side of the lower template hole 401 corresponding to the same mold cavity are provided with a first convex rib section 204 (located in the circumferential direction of the upper mold hole 203 of the upper mold layer and the lower opening of the sealing joint shaft) and a first convex rib section 501 (located in the circumferential direction of the lower mold hole of the upper template hole 401 of the upper template 2) and a convex rib section of the lower mold cavity corresponding to the lower mold cavity, the movable embedded blocks 5 and the fixed embedded blocks 7 are also located in the same mold cavity and the same annular groove with the lower edge of the convex section of the convex rib and the lower mold cavity, and the lower ring, and the convex rib are located in the same mold cavity, and the lower ring is located in the same mold cavity, and the same position of the convex section, and the convex rib are located in the same mold cavity, and the same mold cavity, the convex section of the convex rib, the convex section is located in the same mold cavity, and the same mold cavity, the convex rib, the convex section is located in the same mold cavity.

In order to facilitate the turnable installation of the movable insert 5 and the guiding fit with the upper template 2, the corresponding part of the movable insert 5 on the upper side of the middle template 3 is respectively provided with an upper caulking groove 303, the lower part of the movable insert 5 is fitted and embedded in the upper caulking groove, and one side of the lower part of the upper caulking groove 303 embedded in the movable insert 5, which is far away from the middle template hole 301, is provided with a rotating shaft 6 which is convenient for the movable insert 5 to turn over towards the outer side of the middle template hole 301, U-shaped shaft cavities 304 which are convenient for accommodating the rotating shaft are respectively arranged in the two side groove walls of the upper caulking groove 303 corresponding to the rotating shaft 6, when the movable insert 5 is embedded, the rotating shaft is axially aligned and flatly pressed into the U-shaped shaft cavity, and a flat head cover 9 for pressing the rotating shaft 6 is spirally arranged in the middle template outside the U-shaped shaft cavity. The flat cover presses the rotating shaft 6 from the outer edge of the U-shaped opening of the U-shaped shaft cavity 304, so that the rotating shaft 6 is prevented from moving upwards from the U-shaped shaft cavity 304, but the rotating shaft 6 is not prevented from rotating, namely the movable embedded block 5 is not prevented from turning over around the rotating shaft 6.

Further, the upper portion and the lower portion of the movable insert 5 along the height direction are respectively embedded in the lower side of the upper template 2 and the inner upper side of the middle template 3, the upper portion of one end far away from the center of the middle template hole 301 is provided with a guide table 502 protruding upwards, the periphery of the guide table 502 is provided with a guide taper, the portion of the upper template 2 corresponding to the movable insert is provided with an upper guide pit 206 in a matching manner, when the upper template 2 is matched to be close to the middle template, the guide table 502 is matched with the upper guide pit 206 in a guiding manner, and the upper template 2, the movable insert 5 and the middle template are precisely matched.

In this embodiment, four rows of cavities are provided according to the size of the coupling shaft and the size of the vulcanizer, two cavities are provided for each row (but not limited to only two cavities for each row), two movable inserts 5 and two fixed inserts 7 for each cavity are provided respectively on two sides of the diameter direction parallel to the direction of each row, and the upper caulking grooves 303 on the upper side of the middle template 3 corresponding to the same row are communicated in the row direction.

In order to facilitate the installation of the fixed insert 7 and the guiding fit with the lower template 4, a boss 702 for embedding the middle template 3 is arranged on the outer side of the fixed insert 7 corresponding to the middle die hole 301, a lower caulking groove is correspondingly arranged on the lower surface of the middle template 3, the boss 702 of the fixed insert 7 is matched and embedded with the lower caulking groove and fixed through a screw 8, the lower side of the fixed insert 7 is matched and embedded on the upper surface of the lower template 4, and a lower guide pit 405 is arranged on the lower template 4 corresponding to the position.

The utility model discloses a vulcanization mould utensil of rubber shock attenuation connection axle, for the drawing of patterns of convenience, the mould structural design at the axle journal position of connection axle is the segmental structure of activity abaculus 5 and fixed abaculus 7, wherein fixed abaculus 7 is fixed to be set up in well nib 301 outside of well template 4 downside, the curved protruding muscle section two 701 that its upwards set up and the curved protruding muscle section 404 interval distribution on lower bolster 4 are in the annular space of overcoat lower extreme sealing rubber layer, after well template 3 compound die, go into die hole 301 lower extreme cartridge into lower mould hole 401 with dabber 101, open the ascending upset of activity abaculus 5, with opening well nib, the overcoat 102 of deuterogamying packing into, then turn over activity abaculus 5 to the level again, well nib 301 downside like this, protruding muscle section two 701 on the fixed abaculus and the lower bolster on the cooperation set up protruding muscle section 404 along the annular space separation layering in proper order between overcoat and the dabber and enclose into annular cooperation press seal on the terminal surface, after annular space internal extrusion rubber layer simultaneously, the annular protruding muscle position forms the concave edge of rubber layer. Similarly, the movable insert 5 is arranged outside the middle die hole 301 on the upper side of the middle die plate 3, the downward arc-shaped convex rib section two 501 and the arc-shaped convex rib section one 204 on the upper die plate 2 are distributed in the annular space of the sealing rubber layer at the upper end of the outer sleeve at intervals, a concave arc-shaped opening edge structure of the rubber layer is formed, rubber is extruded from the rubber injection opening 201 to enter the annular space of the rubber layer after die assembly, vulcanization extrusion of the rubber layer is realized, during die stripping, the upper die plate 2 is moved firstly, then the movable insert 5 on each die cavity is turned over, so that the fixing of the upper side of the mandrel of the vulcanized connecting shaft is released, the connecting shaft is convenient to rotate, the die plate 3 in die splitting is adopted, and the connecting shaft is taken out from the middle die hole 301. The utility model discloses a vulcanization mould utensil of rubber shock attenuation connection axle only has three-layer template structure, and template compact structure, every layer of template thickness direction size obtains guaranteeing, is difficult to warp in the template long-term use, and the drawing of patterns is putd aside cope match-plate pattern and well template, and the connection axle that vulcanizes is clamped in well jogged joint by fixed abaculus and activity abaculus, only needs upset activity abaculus, and it is spacing to the card of overcoat upside to relieve the activity abaculus, can upwards take out connection axle product.

Claims (6)

1. A vulcanization mould of a rubber damping connecting shaft comprises an upper template, a middle template and a lower template, a plurality of mold cavities which are correspondingly arranged in rows and columns are arranged in the upper template, the middle template and the lower template in a matching way, guide posts are respectively arranged at four corners of the lower template, guide holes are respectively arranged at the corresponding positions of the middle template and the upper template in a matching way, guide sleeves are arranged in the guide holes, the guide post is matched with the guide sleeve for guiding the die assembly of the middle die and the upper die, a middle die hole is arranged at the middle die position corresponding to each die cavity, the middle template hole is used for being matched with an outer sleeve for installing a connecting shaft, the positions of the upper template and the lower template corresponding to the die cavities are respectively provided with an upper template hole and a lower template hole which are respectively used for fixing and sleeving two end parts of the mandrel, it is characterized in that both sides of each die hole in the diameter direction at the lower side of the middle template are respectively provided with a fixed embedded block, both sides of each die hole in the diameter direction at the upper side of the middle template are respectively provided with a movable embedded block, the movable embedded block is embedded on the upper side of the middle template in a turnover way, the fixed embedded block and the movable embedded block extend into the center direction of the middle template hole and are jointed with the shaft neck of the mandrel, the lower side of the upper template and the upper side of the lower template are respectively provided with an upper guide pit and a lower guide pit corresponding to the positions of the movable insert block and the fixed insert block, the peripheries of the lower side of the upper die hole and the upper side of the lower die hole corresponding to the same die cavity are respectively provided with a first arc-shaped convex rib section for sealing the upper opening and the lower opening of the rubber layer annulus of the coupling shaft, the parts of the movable embedded block and the fixed embedded block corresponding to the rubber layer annular space are also correspondingly provided with an arc-shaped convex rib section two, and the two convex rib sections one and two convex rib sections two on the same side of the same die cavity are distributed at intervals and are enclosed to form a ring shape to be sealed on the annular space of the rubber layer annular space so as to form a concave arc-shaped upper edge and a concave arc-shaped lower edge of the rubber layer.

2. The vulcanization mold for a rubber shock absorption coupling shaft according to claim 1, wherein the upper movable insert of the middle mold plate has upper grooves at corresponding positions, the lower portions of the upper movable inserts are fitted into the upper grooves, and the lower portions of the upper movable inserts fitted into the upper grooves have a rotation shaft for the movable inserts to turn toward the outside of the middle mold hole at a side away from the middle mold hole, the upper grooves have U-shaped shaft cavities for accommodating the rotation shaft at corresponding positions in the two side walls of the rotation shaft, and the outer sides of the U-shaped shaft cavities have flat covers for limiting and pressing the rotation shaft.

3. The vulcanization mold for a rubber damper coupling shaft according to claim 2, wherein an upper portion and a lower portion of the movable insert in the height direction are respectively fitted into the upper mold plate and the middle mold plate, and an upper portion of an end of the movable insert away from the center of the middle mold hole is provided with a guide table projecting upward, a guide taper is provided on the periphery of the guide table, and an upper guide hole is provided in the upper mold plate in a fitting manner at a position corresponding to the movable insert.

4. The vulcanization mold for a rubber shock absorption coupling shaft according to claim 2, wherein the cavity has a plurality of rows, each row has two or more cavities, two movable inserts and two fixed inserts are provided for each cavity along two sides of the diameter of the cavity parallel to the direction of each row, and the upper caulking grooves on the upper side of the middle mold plate in the same row are communicated in the row direction.

5. The vulcanization mold of a rubber shock absorption coupling shaft according to claim 2, wherein a boss for embedding the middle mold plate is provided on an outer side of the fixing insert corresponding to the middle mold hole, a lower caulking groove is provided on a lower surface of the middle mold plate, the boss of the fixing insert is fitted into the lower caulking groove and fixed by a screw, a lower side of the fixing insert is fitted into an upper surface of the lower mold plate, and a lower guide pit is provided on a corresponding position of the lower mold plate.

6. The vulcanization mold for a rubber shock-absorbing coupling shaft according to claim 2, wherein the guide post at each of the four corners of the lower mold plate includes a leading guide post and a straight guide post, respectively, the leading guide post has a height greater than that of the straight guide post, and the top of the leading guide post is provided with a tapered guide section, and guide holes are provided at corresponding positions of the middle mold plate and the upper mold plate, respectively.

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