CN114228001A - Forming die system and demoulding method for ultra-large glass fiber reinforced plastic packing box body - Google Patents
Forming die system and demoulding method for ultra-large glass fiber reinforced plastic packing box body Download PDFInfo
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- CN114228001A CN114228001A CN202111289496.5A CN202111289496A CN114228001A CN 114228001 A CN114228001 A CN 114228001A CN 202111289496 A CN202111289496 A CN 202111289496A CN 114228001 A CN114228001 A CN 114228001A
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- 239000011152 fibreglass Substances 0.000 title claims abstract description 36
- 238000012856 packing Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000001360 synchronised effect Effects 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 18
- 238000000465 moulding Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 8
- 235000004443 Ricinus communis Nutrition 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/0038—Moulds or cores; Details thereof or accessories therefor with sealing means or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/10—Moulds or cores; Details thereof or accessories therefor with incorporated venting means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/301—Modular mould systems [MMS], i.e. moulds built up by stacking mould elements, e.g. plates, blocks, rods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/305—Mounting of moulds or mould support plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/30—Mounting, exchanging or centering
- B29C33/307—Mould plates mounted on frames; Mounting the mould plates; Frame constructions therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7126—Containers; Packaging elements or accessories, Packages large, e.g. for bulk storage
Abstract
The invention relates to the field of ultra-large open molds, and provides a molding mold system and a demolding method for an ultra-large glass fiber reinforced plastic packing box body, wherein the mold system comprises a mold body, a synchronous lifting mechanism, an ejection plate mechanism and a support frame; the bottom of the die body is provided with an ejection hole, and an ejection plate mechanism positioned at the lower part of the die body is provided with an ejection rod; the synchronous lifting mechanism is used for driving the ejection plate mechanism to move up and down and driving the ejection rod to upwards penetrate through the ejection hole to eject the formed glass fiber reinforced plastic packing box body; the support frame is used for supporting the die body, the synchronous lifting mechanism and the ejection plate mechanism. The demolding method comprises the steps of ejecting out the mold and resetting and sealing. The invention adopts flange butt joint and a sealing strip to ensure that the split molds are sealed, and adopts an electric synchronous ejection mechanism to synchronously eject the molded box body; the sealing performance of the ejection mechanism and the die in the molding process is ensured by adopting the pre-tightening force of the spring; the production of large-batch glass fiber reinforced plastic packing box bodies can be met, and the precision and the quality are ensured.
Description
Technical Field
The invention relates to the technical field of ultra-large open molds, in particular to a forming mold system and a demolding method for an ultra-large glass fiber reinforced plastic packing box body.
Background
The ultra-large packing box is used for storing products for a long time and transferring products for a long distance, and has the performance requirements of air tightness, enough rigidity, rain resistance, salt fog resistance, mold resistance, damp and heat resistance and the like. A common ultra-large packing box structure adopts an upper and lower cover opening mode or a structure of an upper box body and a lower box body plus an end door, the length order of magnitude of the upper box body and the lower box body is 10 meters, and the width order of magnitude of the height order of the upper box body and the lower box body is 1 meter. The box body is made of glass fiber reinforced plastic.
The box body of the packing box is made of sandwich composite structural materials, and a composite material-light wood sandwich composite structure is adopted, so that the packing box has the characteristics of light weight and high strength, and the comprehensive mechanical property index can be improved by about 20%. The box body material has excellent weather resistance and ageing resistance, and the use temperature is-60 ℃ to +120 ℃. Wherein: the base material is normal temperature unsaturated polyester resin, the reinforcing material is axial woven glass fiber fabric, and the sandwich material is high quality low density product.
The body of the current common packaging box body forming die is made of glass fiber reinforced plastic, the trapezoidal screw rod is screwed by a hand in the ejection mechanism, the whole structure is simple, the scheme is low in cost, and the forming die is suitable for small-batch production. However, after long-term use, the surface precision of the die is reduced, regular maintenance is needed, the ejection is difficult and complicated, and the ejection is realized by matching with multiple people and manually screwing the screw rod. Meanwhile, the requirement for temperature control during molding is high.
Disclosure of Invention
The invention aims to overcome at least one of the defects of the prior art, and provides a forming die system and a demoulding method for an ultra-large type glass fiber reinforced plastic packing box body, which can effectively improve the forming efficiency and precision of the glass fiber reinforced plastic box body and are suitable for the production of large-batch box bodies.
The invention adopts the following technical scheme:
on one hand, the ultra-large glass fiber reinforced plastic packing box body forming die system comprises a die body, a synchronous lifting mechanism, an ejection plate mechanism and a support frame;
the bottom of the die body is provided with a plurality of ejection holes, and the ejector plate mechanism positioned at the lower part of the die body is provided with ejector rods corresponding to the ejection holes; the synchronous lifting mechanism is used for driving the ejector plate mechanism to move up and down to drive the ejector rod to upwards penetrate through the ejector hole to eject the molded glass fiber reinforced plastic packing box body out of the mold body; the support frame is used for supporting the die body, the synchronous lifting mechanism and the ejection plate mechanism.
There is further provided in accordance with any of the possible implementations described above an implementation in which the synchronous lifting mechanism includes a drive motor, a commutator, and a screw lift; the spiral lifters are multiple, and one driving motor drives the spiral lifters to synchronously lift through the commutator.
There is further provided in accordance with any of the possible implementations described above an implementation in which the ejector plate mechanism includes an ejector plate, an ejector rod, a spring assembly, and a lift mount;
the lower bottom surface of the ejection flat plate is provided with the elevator mounting table at a position corresponding to the spiral elevator, and the elevator mounting table is used for being connected with the spiral elevator; the spiral lifter drives the ejection flat plate to move up and down through the lifter mounting table;
the upper end of the ejector rod is provided with an enlarged part, and the lower end of the ejector rod penetrates through the ejector flat plate; the spring assembly is arranged between the lower end of the ejector rod and the lower bottom surface of the ejector flat plate and used for providing downward tension for the return of the ejector rod; the upper end of the ejector rod penetrates through an ejector hole of the die body, and the size of the expansion part is slightly larger than that of the ejector hole, so that the ejector rod is prevented from being pulled out of the ejector hole downwards.
In any of the above possible implementations, there is further provided an implementation that a sealing ring is disposed at a contact position of an upper portion of the ejection hole and the enlarged portion of the ejection rod.
There is further provided in accordance with any of the possible implementations described above an implementation in which the spring assembly includes a spring, a spring positioning adjustment nut, and a spring positioning washer.
In any of the above possible implementation manners, there is further provided an implementation manner, wherein the mold body is a plurality of split type metal molds, and the plurality of split type metal molds are connected and sealed through flanges, flange seal grooves and screw holes; the flange is provided with an exhaust hole for installing an exhaust joint from the lower part and extracting air in the die cavity; the ejector hole is of a concave structure, and a sealing ring is arranged at the lower part of the concave structure and is used for being attached and sealed with the expanded part of the ejector rod.
According to any one of the above possible implementation manners, there is further provided an implementation manner, wherein the supporting frame is a frame structure and is formed by welding profile steels; the support frame is provided with a mould bottom bracket, a mould upper flange mounting platform, a spiral lifter mounting platform, a driving motor mounting platform and a trundle mounting platform; the mould bottom bracket is used for supporting the mould body from the lower part, mould upper portion flange mounting platform is used for installing the upper portion flange of mould, spiral lift mounting platform is used for installing spiral lift, driving motor mounting platform is used for installing driving motor, truckle mounting platform is used for installing heavy load universal castor.
There is further provided in any of the possible implementations described above an implementation in which the section steel includes a rectangular pipe, a channel steel, and an i-steel.
Any one of the above possible implementation manners further provides an implementation manner, and a movable plate for transmitting uniform ejecting force is arranged at the top of the ejecting rod.
On the other hand, the invention also provides a demoulding method of the forming mould of the ultra-large glass fiber reinforced plastic packing box body, which uses the forming mould system of the ultra-large glass fiber reinforced plastic packing box body; the demolding method comprises the following steps:
s1, after the glass fiber reinforced plastic box body is molded in the mold body, a driving motor of the synchronous lifting mechanism is started, the spiral lifter is synchronously driven to move upwards through the commutator, the ejection plate arranged on the spiral lifter is driven to move upwards, the ejection rod arranged on the ejection plate penetrates through an ejection hole in the bottom of the mold body to move upwards, and the molded glass fiber reinforced plastic box body is ejected;
s2, after demolding is finished, driving the motor to rotate reversely, driving the spiral lifter to move downwards, and driving the ejection flat plate to move downwards; when the expanded part of the ejector rod descends to the upper end face of the ejector hole, the ejector rod is limited and does not descend any more; and the ejection plate continuously moves downwards to a set position, and the spring assembly arranged between the lower end of the ejection rod and the lower bottom surface of the ejection plate is compressed to provide downward tension for the ejection rod, so that the compression sealing between the expansion part of the ejection rod and the ejection hole is realized.
In any of the above possible implementations, there is further provided an implementation in which, in step S2, a position sensor is disposed at a set position where the ejection plate descends, and when the ejection plate descends to the set position, the position sensor is triggered and the driving motor is stopped.
The invention has the beneficial effects that: the die is manufactured in a split type metal die and integrally installed on the frame, and the sealing between the split dies is ensured by adopting a flange butt joint and sealing strip mode; the ejection mode adopts an electric synchronous ejection mechanism, and the molded box body can be ejected synchronously; the ejector rod and the box body are sealed, the sealing performance of the ejector mechanism and the box body in the forming process is guaranteed by adopting a spring pretightening force mode, the large-batch production of the glass fiber reinforced plastic packing box body can be met, and the precision and the quality are guaranteed.
Drawings
Fig. 1a is a schematic perspective view of a molding die system for a super large glass fiber reinforced plastic packing box body according to an embodiment of the present invention.
FIG. 1b is a schematic front view of a molding mold system for a very large container body of a glass fiber reinforced plastic container according to an embodiment of the present invention.
Fig. 2a is a schematic structural view of the split mold in the embodiment.
Fig. 2b is a partial structural view of the split mold shown in fig. 2 a.
Fig. 3 is a schematic view of the supporting frame in the embodiment.
Fig. 4 is a schematic structural diagram of the synchronous lifting mechanism in the embodiment.
Fig. 5a is a schematic structural diagram of the ejector plate mechanism in the embodiment.
Fig. 5b shows a detailed partial view of the ejector rod of fig. 5 a.
Fig. 5c is a schematic view showing the installation relationship of the knock-out lever.
Fig. 6 is a schematic view showing the assembly relationship between the ejector rod and the ejector plate.
In the figure: 10-a mould body; 20-a support frame; 30-a synchronous lifting mechanism; 40-universal caster wheels; 50-a plate ejection mechanism; 11-split mold 1; 12-split mold 2; 13-split mold 3; 14-split mold 4; 15-split mold 5; 121-exhaust hole; 122-hanger bolt holes; 123-screw hole with the support frame; 124-screwing holes between split molds; 125-ejector holes; 126-split mold inter-mold positioning blocks; 127-split mold connecting flange; 128-sealing groove at flange; 21-a mold bottom bracket; 22-a flange mounting platform at the upper part of the mould; 23-a spiral elevator mounting platform; 24-a drive motor mounting platform; 25-a caster mounting platform; 31-a drive motor; 32-a commutator; 33-a screw elevator; 51-ejecting the flat plate; 52-a frame; 53-ejector pin; 54-elevator mounting table; 55-a spring assembly; 56-a movable plate; 551-spring; 552-adjusting nut; 553-positioning the gasket.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that technical features or combinations of technical features described in the following embodiments should not be considered as being isolated, and they may be combined with each other to achieve better technical effects.
As shown in fig. 1 a-1 b, the molding die system for the ultra-large type glass fiber reinforced plastic packing box body according to the embodiment of the present invention includes a die body 10, a synchronous lifting mechanism 30, an ejector plate mechanism 50 and a supporting frame 20.
In one embodiment, the mold body 10 is made of metal, and is formed by a plurality of split molds, and is mounted on the supporting frame 20. And a flange structure and a sealing strip are arranged between every two adjacent split dies, and the air tightness between the split dies is ensured through bolt connection. The mold ejection mechanism 30 is located right below the metal mold body 10, an ejector plate mechanism 50 is arranged between the ejection mechanism 30 and the mold body 10, and the ejector plate mechanism 50 is provided with a plurality of ejector rods 53 for ejecting and supporting the molded member. 40 is a heavy duty castor.
As shown in fig. 2a, in one embodiment, the split metal mold 10 has 5 pieces, and the number of the pieces is small according to the processing difficulty and the processing cost is low. Fig. 2b is a schematic structural diagram of the second mold (split mold 2)12, in which the mold is provided with an exhaust hole 121, a hanging bolt hole 122, a screw hole 123 for connecting with the frame, a screw hole 124 for connecting between the split molds, an ejecting hole 125 for the ejecting mechanism, a positioning block 126 for connecting between the split molds, a flange 127 at the joint of the split molds, and a sealing groove 128 at the flange. And the appearance of the die is subjected to weight reduction design. The split dies can be connected and sealed with each other and with the support frame 20 through the screw holes, and can be independently hoisted by screwing the hanging joints (through the hanging bolt holes 122). And the exhaust hole 121 at the flange is used for installing an exhaust joint from the lower part and exhausting air in the cavity of the die. The ejection hole 125 is a recessed structure, and a sealing ring is disposed at the lower portion of the ejection hole for fitting and sealing with the lower surface of the ejection rod 53.
In one embodiment, as shown in fig. 3, the supporting frame 20 is formed by welding rectangular pipes, channel steels, i-shaped steels, and the like. The supporting frame 20 is provided with a mold bottom bracket 21, a mold upper flange mounting platform 22, a spiral elevator mounting platform 23, a lifting mechanism driving motor mounting platform 24 and a caster wheel mounting platform 25. Bottom bracket 21 is used for supporting mould body 10 from the lower part, and upper portion mounting platform 22 is used for installing the upper portion flange of mould, spiral lift mounting platform 23 is used for installing spiral lift 33, and elevating system driving motor mounting platform 24 is used for installing driving motor, and the truckle mounting platform 25 of bottom is used for installing heavily loaded universal caster 50.
As shown in fig. 4, in an embodiment, the synchronous lifting mechanism 30 uses a motor to drive a plurality of lifters, and includes a driving motor 31, a commutator 32, and a spiral lifter 33, so as to realize synchronous lifting of the lifters.
As shown in fig. 5, in an embodiment, an ejector plate mechanism 50, an ejector plate 51 is disposed between the synchronous lifting mechanism 30 and the mold body 10 for transmitting a uniform ejection force, so as to ensure that the molded component is more safe and effective when being demolded. The ejector mechanism 50 is provided with an ejector plate 51, a frame 52, an ejector rod 53, an elevator mount 54, a spring assembly 55, a movable plate 56, and the like. The ejector plate 51 is integrally connected to the frame 52 for transmitting a mold release force. The ejector rod 53 is connected to the ejector plate 51 (the lower end of the ejector rod 53 penetrates through the ejector plate 51, the ejector rod 53 is provided with a shaft shoulder, and when the ejector plate 51 goes upward, the shaft shoulder provides a supporting force for the ejector rod 53), and the ejector rod 53 penetrates through the ejector hole 125 of the mold body 10 to apply an ejection force to the molded glass fiber reinforced plastic component. The elevator mounting table 54 is used to connect with the spiral elevator 33. A spring assembly 55 is located between ejector plate 51 and ejector rod 53 for applying a downward tension to ejector rod 53.
As shown in FIG. 6, in one embodiment, the spring assembly 55 is comprised of a spring 551, a spring retainer adjustment nut 552, and a spring retainer washer 553. The spring position adjusting nut 552 can adjust the position of the lower end of the ejector rod 53 (the lower end of the ejector rod is provided with a threaded structure) by means of a threaded structure, thereby adjusting the amount of expansion of the spring 551. When the ejection flat plate 51 moves upwards, the shaft shoulder of the ejection rod 53 is applied with force to push the ejection rod 53 to move upwards, so that the demoulding action is realized; when the ejection plate 51 moves downward, the ejection plate 51 compresses the spring 551, and the spring 551 presses the positioning adjusting nut 552 downward, so that the downward pulling force on the ejection rod 53 is realized, and the return action of the ejection mechanism 30 is completed.
Due to manufacturing errors and installation errors, when the plurality of groups of ejector rods 53 retract and return, part of the ejector rods 53 are easy to return to the proper position, and the rest ejector rods 53 cannot contact with the upper plane of the mold ejection hole 125, so that air leakage occurs in the use process of the mold body.
The spring assembly 55 is significant in eliminating the inconsistency of the height direction of the ejection mechanism 30 in the returning process due to manufacturing errors and installation errors, ensuring that each ejection rod 53 can be tightly pressed and sealed with the die body in the returning process, and avoiding that part of the ejection rods 53 can not be effectively contacted with the upper plane of the ejection hole 125 of the die body.
The invention embodiment a very large-scale glass fiber reinforced plastic packing box body forming die stripping method, use the above-mentioned very large-scale glass fiber reinforced plastic packing box body forming die system; the demolding method comprises the following steps:
s1, after the glass fiber reinforced plastic box body is molded in the mold body, the driving motor 31 of the synchronous lifting mechanism 30 is started, the commutator 32 synchronously drives the spiral lifter 33 to move upwards, the ejection plate 51 arranged on the spiral lifter 33 is driven to move upwards, the ejection rod 53 arranged on the ejection plate 51 penetrates through the ejection hole 125 at the bottom of the mold body 10 to move upwards, and the molded glass fiber reinforced plastic box body is ejected out, so that demolding is realized;
s2, after demolding is finished, the driving motor 31 rotates reversely to drive the spiral lifter 33 to move downwards to drive the ejection flat plate 51 to move downwards; the spring assembly 55 disposed between the lower end of the ejector rod 53 and the lower bottom surface of the ejector plate 51 is compressed to provide a downward pulling force for the return of the ejector rod 53; when the enlarged portion of the knock-out lever 53 descends to the upper end face of the knock-out hole 125, the knock-out lever 53 is restrained from descending any more; the ejection flat plate 51 continues to move downwards to a set position, and the continuous tension force is kept between the ejection rod 53 and the die body 10 through the spring assembly 55, so that sealing is realized, and the sealing performance of the die during forming of the box body is ensured.
In one embodiment, a position sensor is provided at a set position where the ejector plate 51 descends, and when the ejector plate 51 descends to the set position, the position sensor is triggered and the driving motor 31 stops.
While several embodiments of the present invention have been presented herein, it will be appreciated by those skilled in the art that changes may be made to the embodiments herein without departing from the spirit of the invention. The above examples are merely illustrative and should not be taken as limiting the scope of the invention.
Claims (10)
1. A molding die system for an ultra-large glass fiber reinforced plastic packing box body is characterized by comprising a die body, a synchronous lifting mechanism, an ejection plate mechanism and a support frame;
the bottom of the die body is provided with a plurality of ejection holes, and the ejector plate mechanism positioned at the lower part of the die body is provided with ejector rods corresponding to the ejection holes;
the synchronous lifting mechanism is used for driving the ejector plate mechanism to move up and down and driving the ejector rod to upwards penetrate through the ejector hole so as to eject the molded glass fiber reinforced plastic packing box body out of the die body;
the support frame is used for supporting the die body, the synchronous lifting mechanism and the ejection plate mechanism.
2. The ultra-large format glass fiber reinforced plastic packing box forming die system of claim 1, wherein the synchronous lifting mechanism comprises a drive motor, a commutator and a screw elevator; the spiral lifters are multiple, and one driving motor drives the spiral lifters to synchronously lift through the commutator.
3. The ultra-large format glass fiber reinforced plastic packing box forming die system of claim 2, wherein the ejector plate mechanism comprises an ejector plate, an ejector rod, a spring assembly and a lifter mounting table;
the lower bottom surface of the ejection flat plate is provided with the elevator mounting table at a position corresponding to the spiral elevator, and the elevator mounting table is used for being connected with the spiral elevator; the spiral lifter drives the ejection flat plate to move up and down through the lifter mounting table;
the upper end of the ejector rod is provided with an enlarged part, and the lower end of the ejector rod penetrates through the ejector flat plate; the spring assembly is arranged between the lower end of the ejector rod and the lower bottom surface of the ejector flat plate and used for providing downward tension for the return of the ejector rod; the upper end of the ejector rod penetrates through the ejection hole of the die body, and the size of the expansion part is slightly larger than that of the ejection hole, so that the ejector rod is prevented from being pulled out of the ejection hole when being reset downwards.
4. The system of claim 3, wherein a gasket is disposed at a contact portion of an upper portion of the ejection hole and the enlarged portion of the ejection rod.
5. The molding die system of the ultra-large glass fiber reinforced plastic packing box body according to claim 3, wherein the die body is a plurality of split metal dies, and the plurality of split metal dies are connected and sealed through flanges, flange seal grooves and screw holes; the flange is provided with an exhaust hole for installing an exhaust joint from the lower part and extracting air in the die cavity; the ejector hole is of a concave structure, and a sealing ring is arranged at the lower part of the concave structure and is used for being attached and sealed with the expanded part of the ejector rod.
6. The molding die system of the ultra-large glass fiber reinforced plastic packing box body as claimed in claim 1, wherein the supporting frame is a frame structure and is formed by welding profile steel; the support frame is provided with a mould bottom bracket, a mould upper flange mounting platform, a spiral lifter mounting platform, a driving motor mounting platform and a trundle mounting platform; the mould bottom bracket is used for supporting the mould body from the lower part, mould upper portion flange mounting platform is used for installing the upper portion flange of mould, spiral lift mounting platform is used for installing spiral lift, driving motor mounting platform is used for installing driving motor, truckle mounting platform is used for installing heavy load universal castor.
7. The system of claim 6, wherein the section steel comprises rectangular tubes, channel steel and I-steel.
8. The system of claim 3, wherein a movable plate for transmitting uniform ejection force is disposed on the top of the ejector rod.
9. A method for demoulding a forming mould of a super-large glass fiber reinforced plastic packing box body, which is characterized in that the forming mould system of the super-large glass fiber reinforced plastic packing box body as claimed in any one of claims 1 to 8 is used; the demolding method comprises the following steps:
s1, after the glass fiber reinforced plastic box body is molded in the mold body, a driving motor of the synchronous lifting mechanism is started, the spiral lifter is synchronously driven to move upwards through the commutator, the ejection plate arranged on the spiral lifter is driven to move upwards, the ejection rod arranged on the ejection plate penetrates through an ejection hole in the bottom of the mold body to move upwards, and the molded glass fiber reinforced plastic box body is ejected;
s2, after demolding is finished, driving the motor to rotate reversely, driving the spiral lifter to move downwards, and driving the ejection flat plate to move downwards; the spring assembly arranged between the lower end of the ejector rod and the lower bottom surface of the ejector flat plate is compressed to provide downward tension for the return of the ejector rod; when the expanded part of the ejector rod descends to the upper end face of the ejector hole, the ejector rod is limited and does not descend any more, the ejector flat plate continues to move downwards to a set position, and the compression sealing between the expanded part of the ejector rod and the ejector hole is realized.
10. The method for releasing a mold for molding a container body of an oversized glass fiber reinforced plastic container as recited in claim 9, wherein in step S2, a position sensor is provided at a set position where the ejector plate descends, and when the ejector plate descends to the set position, the position sensor is triggered and the driving motor is stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111289496.5A CN114228001B (en) | 2021-11-02 | Forming die system and demolding method for ultra-large glass fiber reinforced plastic box body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111289496.5A CN114228001B (en) | 2021-11-02 | Forming die system and demolding method for ultra-large glass fiber reinforced plastic box body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114228001A true CN114228001A (en) | 2022-03-25 |
| CN114228001B CN114228001B (en) | 2024-05-14 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1787784A1 (en) * | 2005-11-22 | 2007-05-23 | Karl Gritscher | Mould for manufacturing parts by injection moulding, pressure die casting or a deposition method |
| CN204249171U (en) * | 2014-11-18 | 2015-04-08 | 南通久盛新材料科技有限公司 | Full-automatic glass steel dismoulding system |
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