CN113442348A

CN113442348A - Vulcanization mold for air spring leather bag

Info

Publication number: CN113442348A
Application number: CN202110816545.XA
Authority: CN
Inventors: 李承伟; 瞿亿波
Original assignee: Yuhuan Xiede Auto Parts Industry Manufacturing Co ltd
Current assignee: Yuhuan Xiede Auto Parts Industry Manufacturing Co ltd
Priority date: 2021-07-20
Filing date: 2021-07-20
Publication date: 2021-09-28

Abstract

The invention discloses a vulcanization mould of an air spring leather bag, which comprises an upper mould, a middle mould and a lower mould, wherein the middle mould is provided with at least one vulcanization hole, the upper mould is provided with a first plunger for plugging one end of the vulcanization hole, the lower mould is provided with a second plunger for plugging the other end of the vulcanization hole, a heating pipeline is arranged in the middle mould, the rubber bag is in a straight cylinder shape, one end of the rubber bag is sealed, the other end of the rubber bag is sealed and fixed on the second plunger, a vulcanization chamber is formed among the first plunger, the second plunger, the inner wall of the vulcanization hole and the outer wall of the rubber bag, and the air spring leather bag is sleeved outside the rubber bag and is positioned in the vulcanization chamber; a vacuumizing main pipe is arranged in the upper die and is communicated with the vulcanizing chamber; and an air charging and exhausting pipeline is arranged in the lower die and is communicated with the interior of the capsule. The invention has simple structure and strong practicability.

Description

Vulcanization mold for air spring leather bag

Technical Field

The invention relates to the field of vulcanization molds, in particular to a vulcanization mold for an air spring leather bag.

Background

In order to quickly attenuate the vibration of a frame and a cab of a vehicle body and improve the smoothness and comfort of the running of the vehicle, an air spring leather bag is generally arranged on a suspension system of the vehicle for damping, and the air spring leather bag is widely adopted on the vehicle.

For example, the Chinese patent application No. 202011185365.8, named as a vulcanization mold and vulcanization process of an air spring bladder, has the following defects: 1: after high-temperature steam is introduced into the air chamber, the capsule is heated to expand and is attached to the air spring leather bag, the time interval cavity is compressed when the capsule is heated to expand and is attached to the air spring leather bag, and the capsule is heated to expand, pressure maintaining vulcanization (pressure maintaining expansion) is changed into cooling shrinkage and pressure relief shrinkage for a long time, so that the service life of the capsule is shortened; 2: after the air spring leather bag is sleeved on the core mold, the upper central guide rod connecting rod is driven to move downwards to a set position through the upper central oil cylinder, and then the mold upper base and the middle mold are driven to move downwards to the set position through the mold locking oil cylinder, so that the product is placed from below, and operators can not know the situation once the product is pressed askew by the middle mold or the product is not completely placed in the spacing cavity. 3: the first middle mold is provided with a first heating cavity capable of introducing high-temperature steam, the second middle mold is provided with a second heating cavity capable of introducing high-temperature steam, the first heating cavity and the first heating cavity are communicated with an air inlet and an air outlet, the middle part of the core mold is provided with a third heating cavity capable of introducing high-temperature steam, the high-temperature steam is introduced into the air chamber through an air inlet pipe on the middle mold, the molds need 4 ways of heating in the vulcanization process, the steam lines are multiple, the heating effect is poor, if the area of the compartment is fixed, when the heating effect is good, only high-temperature vulcanization is needed when the air spring leather bag is vulcanized, nitrogen vulcanization and pressure maintaining vulcanization are not needed, but because the compartment in the prior art is compressed to enable the air spring leather bag to be attached to the air spring leather bag, nitrogen pressure maintaining is required to enable the air bag to expand, and then nitrogen vulcanization and pressure maintaining vulcanization are realized, the process is rather cumbersome. 4: before the vulcanization of the technology, the partition chamber is not vacuumized, so that bubble marks exist on the surface of a product, the heating of the core mold and the middle mold is stopped after the pressure-maintaining vulcanization treatment is finished, then the air chamber is emptied, the air chamber is vacuumized after the emptying is finished, and the steam and nitrogen can be conveniently introduced successively next time.

Disclosure of Invention

The invention aims to solve the technical problems in the related art to a certain extent at least aiming at the defects in the prior art, and provides a vulcanization mold of an air spring leather bag, so as to achieve the purposes of simple structure, less steam pipeline arrangement and simple process.

In order to solve the technical problems, the technical scheme of the invention is as follows: the vulcanization mold of the air spring leather bag comprises an upper mold, a middle mold, a lower mold and a capsule, wherein at least one vulcanization hole is formed in the middle mold, the upper mold is provided with a first plunger for plugging one end of the vulcanization hole, the lower mold is provided with a second plunger for plugging the other end of the vulcanization hole, a heating pipeline is arranged in the middle mold, the capsule is in a straight cylinder shape, one end of the capsule is sealed, the other end of the capsule is sealed and fixed on the second plunger, a vulcanization chamber is formed among the first plunger, the second plunger, the inner wall of the vulcanization hole and the outer wall of the capsule, and the air spring leather bag is sleeved outside the capsule and is positioned in the vulcanization chamber; a vacuumizing main pipe is arranged in the upper die and is communicated with the vulcanizing chamber; and an air charging and exhausting pipeline is arranged in the lower die and is communicated with the interior of the capsule.

Furthermore, the number of the vulcanizing chambers is six, and the six vulcanizing chambers are arranged in a rectangular shape.

Furthermore, the heating pipeline include 4 be the bleeder pipes of "nearly" form of falling, each bleeder pipe is located four faces in the well mould respectively, each bleeder pipe end to end, the heating pipeline includes the inlet end and gives vent to anger the end.

Further, capsule one end sealed, the other end is equipped with the go-between that the cross-section is T type form, the lower mould be equipped with first screw hole, first screw hole runs through lower mould and second plunger, is equipped with the second screw hole that corresponds with first screw hole on the pressure disk, has the pressure disk through the screw fixation on the second plunger, set up the annular with the go-between adaptation between pressure disk and the second plunger.

Furthermore, the vacuumizing main pipe comprises two first pipelines, three second pipelines are connected between the two first pipelines in parallel, two ends of the two first pipelines are respectively fixed with a plug, one of the first pipelines is connected with a first guide pipe, the first guide pipe is provided with a first quick-connection connector, the first plunger is provided with a first through hole, one end of the first through hole is communicated with the side wall of the first plunger, and the other end of the first through hole is communicated with the intersection of the corresponding first pipeline and the corresponding second pipeline.

Furthermore, the inflation and extraction pipeline comprises two third pipelines, three fourth pipelines are connected in parallel between the two third pipelines, a second communication hole is formed in the second plunger, a third communication hole is formed in the pressure plate, one end of the second communication hole is communicated with the third communication hole, the other end of the second communication hole is communicated with the intersection of the corresponding third pipeline and the corresponding fourth pipeline, the capsule wraps the pressure plate, the third communication hole is located in the capsule, plugs are fixed at two ends of the two third pipelines respectively, one of the third pipelines is connected with a second guide pipe, and the second guide pipe is provided with a second quick-plugging connector.

Further, the upper die and the middle die are provided with rubber rings between each other, the rubber rings are sleeved on the upper hole openings of the vulcanization holes, the middle die and the lower die are provided with rubber rings between each other, and the rubber rings are sleeved on the lower hole openings of the vulcanization holes.

The technical effects of the invention are mainly reflected in the following aspects: 1: compared with the prior art, the capsule provided by the invention is not directly contacted with steam, and the pressure is ensured to be at a value which is full of air but not deformed, so that the capsule provided by the invention is more durable. 2: after the upper die is opened, the workpiece is directly sleeved, and whether the workpiece is completely placed in the vulcanizing chamber or not is clear at a glance, so that potential safety hazards are avoided. 3: the vulcanizing holes are 6 and are arranged in a rectangular shape, the vulcanizing holes are arranged in two rows, each row is 3, each branch pipe is respectively positioned on four surfaces in the middle die, and each vulcanizing hole can be heated and can be uniformly heated. 4: each bleeder end to end, in the limited space of mould, above-mentioned design can let every vulcanization room be heated evenly basically, and the bleeder that is "nearly" form can let the dwell time of steam increase, and area of contact increases, and heating effect is better, and steam conduit only has 1 way. 5: the design through the evacuation pipe makes the whole time of six vulcanization room evacuation shorten, and overall efficiency improves, makes the indoor vacuum that keeps of vulcanization simultaneously, prevents that the bubble vestige from appearing in the workpiece surface. 6: compared with the prior art, the capsule shape of the invention is kept unchanged, and the capsule is deformed to compress a workpiece (a vulcanization chamber) without pressure maintaining by high-pressure nitrogen. 7: the working principle and the method are as follows: starting the equipment, starting a steam source, starting a compressed air source, firstly opening an upper die, filling compressed air into a capsule, maintaining the pressure to a preset value, sleeving a rolled workpiece between the capsule and a vulcanization hole wall (namely a vulcanization chamber), then closing the upper die, vacuumizing the vulcanization chamber, heating and vulcanizing a product, closing a vacuum pump after vulcanization, closing the steam source, opening the upper die and a middle die, pumping or discharging the compressed air in the capsule, and taking out the workpiece.

Drawings

FIG. 1 is a schematic partial cross-sectional view of the present invention;

FIG. 2 is a schematic partial cross-sectional view of an upper die;

FIG. 3 is a schematic partial cross-sectional view of an intermediate die;

FIG. 4 is a schematic partial cross-sectional view of the lower die;

FIG. 5 is a schematic view of a heating circuit;

FIG. 6 is a schematic top view of the present invention;

FIG. 7 is a schematic cross-sectional view of FIG. 6 in the direction A-A1;

FIG. 8 is a schematic bottom view of the present invention;

FIG. 9 is a schematic front view of the present invention;

FIG. 10 is a schematic right-side view of the present invention;

FIG. 11 is a schematic view of the vacuum manifold of the present invention;

Detailed Description

The embodiments of the present invention will be described in detail below, examples of which are illustrated in the accompanying drawings, and the embodiments described below by referring to the drawings are exemplary and intended to explain the present invention so that the technical aspects of the present invention can be more easily understood and appreciated, and are not to be construed as limiting the present invention.

The mold of the invention needs to be used with a vulcanizer, when in use, an air cylinder or an oil cylinder in the prior art is needed to drive the upper mold 1 and the middle mold 2 to move, the lower mold 3 is fixed on the vulcanizer, the vertical column type guide in the prior art is used for guiding the upper mold and the middle mold to move up and down and the guide rail type guide rail to move left and right in the moving process, meanwhile, a steam source is connected with an air inlet end 52, an air outlet end 53 is connected with a drain pipe, and a vacuum pump is connected with a compressed air source and a quick connector.

As shown in fig. 1, 2, 3, 4, 5 and 7: vulcanization mould utensil of air spring leather bag, including last mould 1, well mould 2, lower mould 3 and capsule 9, be equipped with 6 vulcanization hole 4 on well mould 2, and be the rectangle and arrange, go up mould 1 and be equipped with the first plunger 11 that is used for the shutoff to vulcanize hole 4 one end, lower mould 3 is equipped with the second plunger 31 that is used for the shutoff to vulcanize the hole 4 other end, well mould 2 in be equipped with heating line 5, go up and be equipped with rubber circle 01 between mould 1 and the well mould 2, rubber circle 01 is located the last drill way of vulcanization hole 4, well mould 2 and lower mould 3 between be equipped with rubber circle 01, rubber circle 01 is located the lower drill way of vulcanization hole 4, in order to make vulcanization chamber 6 form a sealed space, capsule 9 be straight tube-shape, one end is sealed, and the other end is sealed to be fixed on second plunger 31, during the compound die vulcanization, vulcanization chamber 6 has been constituted between first plunger 11, second plunger 31, vulcanization hole 4 inner wall and the capsule 9 outer wall, six vulcanization chambers 6 are arranged in a rectangular shape, and workpieces (namely air spring leather bags) are sleeved outside the capsules 9 and are positioned in the vulcanization chambers 6; a vacuumizing main pipe 7 is arranged in the upper die 1, the vacuumizing main pipe 7 is communicated with the vulcanizing chamber 6, air is pumped away to prevent bubble marks on the surface of a product, and the quality of the product is improved; lower mould 3 in be equipped with and fill bleeder line 8, fill bleeder line 8 and the inside intercommunication of capsule 9, the not inflation state (in limit range) after the capsule 9 is full of gas (just like being full of the basketball of gas, fill a bit of gas inwards, but not reach the limit, also can not expand, only can be more firm), be that firm erects in vulcanization hole 4, support for work piece (being air spring leather bag), make vulcanization chamber 6 become the space of a design, when the drawing of patterns, gas in the capsule 9 is put or the drawing point, capsule 9 is flat, the separation of capsule 9 surface and work piece internal surface, can take out the product fast.

As shown in fig. 3 and 5: be equipped with 6 vulcanization holes 4 on well mould 2, be the rectangle and arrange, 6 vulcanization rooms 6 are also 6 so, heating pipeline 5 include 4 bleeder 51 that are "nearly" form, each bleeder 51 is located four faces in well mould 2 respectively, two rows of range are divided because of 6 vulcanization holes 4 again, every row 3, so, every vulcanization hole 4 can both heat up, and can the thermally equivalent, each bleeder 51 end to end, in the limited space of mould, above-mentioned design can let every vulcanization room 6 be heated basically evenly, bleeder 51 that is "nearly" form can let the dwell time increase of steam, area of contact increases, the heating effect is better, heating pipeline 5 includes inlet end 52 and the end 53 of giving vent to anger, inlet end 52 and the end 53 of giving vent to anger are used for steam respectively and go out steam.

As shown in fig. 7 and 8: 9 one end of capsule sealed, the other end is equipped with the go-between 91 that the cross-section is T type form, during the drawing of patterns, take out or put gas, let capsule 9 flat fast fall, conveniently take out the work piece, be fixed with pressure disk 10 through screw 102 on the second plunger 31, offer the annular with go-between 91 adaptation between pressure disk 10 and the second plunger 31, the ingenious place of design here is, capsule 9 parcel pressure disk 10, inside unable fixed pressure disk 10, so follow lower mould 3 and offer four first screw holes, four first screw holes run through lower mould 3 and pressure disk 10, be equipped with on the pressure disk 10 with four second screw holes of these four first screw hole adaptations, rethread screw 102 first screw hole of screw in and second screw hole, and then fixed, reached outside-in fixed mode.

As shown in fig. 6, 8, 9, and 10: the vacuum pumping main pipe 7 comprises two first pipelines 71, three second pipelines 72 are connected between the two first pipelines 71 in parallel, plugs 73 are respectively fixed at two ends of the two first pipelines 71, one of the first pipelines 71 is connected with a first guide pipe 74, the first guide pipe 74 is provided with a first quick-connection connector 75, the first plunger 11 is provided with a first through hole 111, one end of the first through hole 111 is communicated with the side wall of the first plunger 11, and the other end is communicated with the intersection of the corresponding first pipeline 71 and the corresponding second pipeline 72.

Through the design, the overall time for vacuumizing the six vulcanizing chambers 6 is shortened, and the overall efficiency is improved.

As shown in fig. 11: the parallel connection means that the two first pipelines 71 are respectively a first pipe and a second pipe, the three second pipelines 72 are respectively a third pipe, a fourth pipe and a fifth pipe, two ends of the third pipe are respectively communicated with the first pipe and the second pipe, two ends of the fourth pipe are respectively communicated with the first pipe and the second pipe, and two ends of the fifth pipe are respectively communicated with the first pipe and the second pipe.

As shown in fig. 6, 8, 9, and 10: the charge and exhaust pipeline 8 comprises two third pipelines 82, three fourth pipelines 84 are connected in parallel between the two third pipelines 82, a second communication hole 311 is formed in the second plunger 31, a third communication hole 103 is formed in the pressure plate 10, one end of the second communication hole 311 is communicated with the third communication hole 103, the other end of the second communication hole 311 is communicated with the intersection of the corresponding third pipeline 82 and the corresponding fourth pipeline 84, the capsule 9 wraps the pressure plate 10, the third communication hole 103 is located in the capsule 9, two ends of the two third pipelines 82 are respectively fixed with plugs 73, one of the third pipelines 82 is connected with a second guide pipe 81, and the second guide pipe 81 is provided with a second quick-connection plug 83.

The working principle and the method are as follows: starting equipment, starting a steam source, starting a compressed air source, firstly opening an upper die 1, filling compressed air into a capsule 9, maintaining the pressure to a preset value, sleeving a rolled workpiece between the capsule 9 and the wall of a vulcanization hole 4 (namely a vulcanization chamber 6), then closing the upper die 1, vacuumizing the vulcanization chamber 6, heating and vulcanizing a product, closing a vacuum pump after vulcanization, closing the steam source, opening the upper die 1 and a middle die 2, exhausting or discharging the compressed air in the capsule 9, and taking out the workpiece.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. Vulcanization mould utensil of air spring leather bag, including last mould, well mould, lower mould and capsule, be equipped with at least one vulcanization hole on the well mould, go up the mould and be equipped with the first plunger that is used for the shutoff to vulcanize hole one end, the lower mould is equipped with the second plunger that is used for the shutoff to vulcanize the hole other end, well mould in be equipped with heating line, its characterized in that: the capsule is in a straight cylinder shape, one end of the capsule is sealed, the other end of the capsule is fixed on the second plunger in a sealing mode, a vulcanization chamber is formed among the first plunger, the second plunger, the inner wall of the vulcanization hole and the outer wall of the capsule, and the air spring leather bag is sleeved outside the capsule and is positioned in the vulcanization chamber; a vacuumizing main pipe is arranged in the upper die and is communicated with the vulcanizing chamber; and an air charging and exhausting pipeline is arranged in the lower die and is communicated with the interior of the capsule.

2. The vulcanization mold of an air spring bladder according to claim 1, characterized in that: six vulcanizing chambers are arranged in a rectangular shape.

3. Vulcanization mould for air spring bellows according to claim 1 or 2, characterized in that: the heating pipeline include 4 be the bleeder of "nearly" form, each bleeder is located four faces in the well mould respectively, each bleeder end to end, the heating pipeline includes the inlet end and gives vent to anger the end.

4. The vulcanization mold of an air spring bladder according to claim 1, characterized in that: capsule one end sealed, the other end is equipped with the go-between that the cross-section is T type form, the lower mould be equipped with first screw hole, first screw hole runs through lower mould and second plunger, is equipped with the second screw hole that corresponds with first screw hole on the pressure disk, has the pressure disk through the screw fastening on the second plunger, set up the annular with the go-between adaptation between pressure disk and the second plunger.

5. The vulcanization mold of an air spring bladder according to claim 3, characterized in that: the vacuumizing main pipe comprises two first pipelines, three second pipelines are connected between the two first pipelines in parallel, two ends of each first pipeline are respectively fixed with a plug, one first pipeline is connected with a first guide pipe, the first guide pipe is provided with a first quick-plugging connector, the first plunger is provided with a first connecting hole, one end of the first connecting hole is communicated with the side wall of the first plunger, and the other end of the first connecting hole is communicated with the intersection of the corresponding first pipeline and the corresponding second pipeline.

6. The vulcanization mold of an air spring bladder according to claim 4, characterized in that: the inflation and extraction pipeline comprises two third pipelines, three fourth pipelines are connected in parallel between the two third pipelines, a second communication hole is formed in the second plunger, a third communication hole is formed in the pressure plate, one end of the second communication hole is communicated with the third communication hole, the other end of the second communication hole is communicated with the intersection of the corresponding third pipeline and the corresponding fourth pipeline, the capsule wraps the pressure plate and the third communication hole, plugs are fixed at two ends of the two third pipelines respectively, one of the third pipelines is connected with a second guide pipe, and the second guide pipe is provided with a second quick-plugging connector.

7. Vulcanization mould for air spring bellows according to claim 1 or 2, characterized in that: the upper die and the middle die are provided with rubber rings between, the rubber rings are sleeved at the upper orifice of the vulcanization hole, the middle die and the lower die are provided with rubber rings between, and the rubber rings are sleeved at the lower orifice of the vulcanization hole.