CN114228001B - Forming die system and demolding method for ultra-large glass fiber reinforced plastic box body - Google Patents
Forming die system and demolding method for ultra-large glass fiber reinforced plastic box body Download PDFInfo
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- CN114228001B CN114228001B CN202111289496.5A CN202111289496A CN114228001B CN 114228001 B CN114228001 B CN 114228001B CN 202111289496 A CN202111289496 A CN 202111289496A CN 114228001 B CN114228001 B CN 114228001B
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- 239000011152 fibreglass Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000001360 synchronised effect Effects 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000000465 moulding Methods 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 7
- 230000001960 triggered effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000004806 packaging method and process Methods 0.000 abstract description 3
- 210000001503 joint Anatomy 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 235000004443 Ricinus communis Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the field of oversized open molds, and provides an oversized glass fiber reinforced plastic box body forming mold system and a demolding method, wherein the mold system comprises a mold body, a synchronous lifting mechanism, an ejector plate mechanism and a supporting frame; the bottom of the die body is provided with an ejection hole, and an ejection rod is arranged on an ejection plate mechanism positioned at the lower part of the die body; the synchronous lifting mechanism is used for driving the ejector plate mechanism to move up and down and driving the ejector rod to upwards pass through the ejection hole to eject the formed glass fiber reinforced plastic packaging box body; the support frame is used for supporting the die body, the synchronous lifting mechanism and the ejector plate mechanism. The demolding method comprises ejection of a mold and reset sealing. The invention adopts the flange butt joint and the sealing strip to ensure the sealing of the split mould, adopts the electric synchronous ejection mechanism, and can synchronously eject the formed box body; the tightness between the ejection mechanism and the die in the forming process is ensured by adopting the pre-tightening force of the spring; can meet the production of a large quantity of glass fiber reinforced plastic boxing boxes and ensure the precision and the quality.
Description
Technical Field
The invention relates to the technical field of oversized open molds, in particular to a molding mold system and a demolding method for an oversized glass fiber reinforced plastic container body.
Background
The ultra-large packing box is used for long-term storage and long-distance transportation of products, and has the performance requirements of air tightness, sufficient rigidity, rain resistance, salt fog resistance, mold resistance, damp heat resistance and the like. The common ultra-large packing box structure adopts an up-down cover opening mode or a structure of an up-down box body and an end door, wherein the length order of magnitude of the up-down box body is 10 meters, and the width and height order of magnitude of the up-down box body is 1 meter. The box body is made of glass fiber reinforced plastic.
The packing box body adopts sandwich composite structure material, adopts a composite material-light wood sandwich composite structure, has the characteristics of light weight and high strength, and can improve the comprehensive mechanical property index by about 20 percent. The box body material has excellent weather resistance and ageing resistance, and the use temperature is-60 ℃ to +120 ℃. Wherein: the matrix material is normal-temperature unsaturated polyester resin, the reinforcing material is glass fiber axial braided fabric, and the sandwich material is a low-density high-quality product.
The body of the current common packing box body forming die is made of glass fiber reinforced plastic, the ejection mechanism adopts a trapezoidal screw rod which is screwed by hand, the whole structure is simple, and the die is a low-cost scheme and is suitable for small-batch production. However, after long-term use, the surface precision of the die is reduced, regular maintenance is needed, ejection is difficult and complicated, and the screw is required to be manually screwed for ejection by matching by multiple people. Meanwhile, the temperature control requirement in the molding process is high.
Disclosure of Invention
The invention aims to at least overcome one of the defects in the prior art, and provides a molding die system and a demolding method for a very large glass fiber reinforced plastic box body, which can effectively improve the molding efficiency and the molding precision of the glass fiber reinforced plastic box body and are suitable for mass box body production.
The invention adopts the following technical scheme:
On the one hand, the ultra-large glass fiber reinforced plastic box body forming die system comprises a die body, a synchronous lifting mechanism, an ejector plate mechanism and a supporting frame;
The bottom of the die body is provided with a plurality of ejection holes, and the ejection plate mechanism positioned at the lower part of the die body is provided with ejection 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 pass through the ejector hole upwards to eject the formed glass fiber reinforced plastic container body from the mold body; the support frame is used for supporting the die body, the synchronous lifting mechanism and the ejector plate mechanism.
There is further provided, in any of the possible implementations described above, an implementation, the synchronous lifting mechanism including 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 reverser.
Any one of the possible implementations described above, further providing an implementation, the ejector plate mechanism including an ejector plate, an ejector rod, a spring assembly, and an elevator mount;
The lower bottom surface of the ejection flat plate is provided with the elevator installation table at a position corresponding to the spiral elevator and 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 installation table;
the upper end of the ejection rod is provided with an expansion part, and the lower end of the ejection rod penetrates through the ejection flat plate; the spring component is arranged between the lower end of the ejector rod and the lower bottom surface of the ejector plate and is used for providing downward pulling force for the return of the ejector rod; the upper end of the ejection 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 ejection rod is prevented from being pulled out of the ejection hole downwards.
In any of the possible implementations described above, there is further provided an implementation in which a seal ring is provided at a contact portion of the upper portion of the ejector hole and the enlarged portion of the ejector rod.
In any of the possible implementations described above, there is further provided an implementation, the spring assembly including a spring, a spring positioning adjustment nut, and a spring positioning washer.
Any one possible implementation manner as described above further provides an implementation manner, wherein the die body is a plurality of split metal dies, and connection and sealing are realized among the split metal dies through a flange, a flange sealing groove and a screw hole; the flange is provided with an exhaust hole for installing an exhaust joint from below and extracting air in the die cavity; the ejection hole is of a concave structure, and a sealing ring is arranged at the lower part of the concave structure and used for being attached and sealed with the expansion part of the ejection rod.
Any one possible implementation manner as described above further provides an implementation manner, wherein the support frame is of a frame structure and is formed by welding profile steel; the support frame is provided with a die bottom bracket, a die upper flange mounting platform, a spiral elevator mounting platform, a driving motor mounting platform and a trundle mounting platform; the die bottom bracket is used for supporting the die body from the lower part, the die upper flange mounting platform is used for mounting the upper flange of the die, the spiral elevator mounting platform is used for mounting the spiral elevator, the driving motor mounting platform is used for mounting the driving motor, and the truckle mounting platform is used for mounting heavy-duty universal truckles.
In any of the possible implementations described above, there is further provided an implementation, the section steel includes a rectangular tube, a channel steel, and an i-steel.
In any of the possible implementations described above, there is further provided an implementation in which the top of the ejector rod is provided with a movable plate for transmitting uniform ejection force.
On the other hand, the invention also provides a demolding method of the oversized glass fiber reinforced plastic box body forming mold, and the oversized glass fiber reinforced plastic box body forming mold system is used; the demolding method comprises the following steps:
S1, after a glass fiber reinforced plastic box body is formed in a die body, a driving motor of a synchronous lifting mechanism is started, a spiral lifter is synchronously driven to move upwards through a reverser, an ejection flat plate arranged on the spiral lifter is driven to move upwards, an ejection rod arranged on the ejection flat plate passes through an ejection hole at the bottom of the die body to move upwards, and the formed glass fiber reinforced plastic box body is ejected;
s2, after demoulding is completed, the driving motor reversely rotates to drive the spiral lifter to move downwards to drive the ejection flat plate to move downwards; when the expansion part of the ejector rod descends to the upper end surface of the ejector hole, the ejector rod is limited and does not descend any more; the ejector plate continues to move downwards to a set position, a spring assembly arranged between the lower end of the ejector rod and the lower bottom surface of the ejector plate is compressed, a downward pulling force is provided for the ejector rod, and compression sealing between the expansion part of the ejector rod and the ejector hole is realized.
In any one of the possible implementation manners described above, there is further provided an implementation manner, in step S2, a position sensor is disposed 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.
The beneficial effects of the invention are as follows: the mold adopts a split metal mold, is manufactured in a split way, is integrally mounted on the frame, and adopts a flange butt joint and sealing strip mode to ensure the sealing between the split molds; the ejection mode adopts an electric synchronous ejection mechanism, so that the formed box body can be ejected synchronously; the sealing of the ejection rod and the box body adopts a spring pretightening force mode, so that the tightness of the ejection mechanism and the box body in the forming process is ensured.
Drawings
Fig. 1a is a schematic perspective view of a molding die system for a oversized glass fiber reinforced plastic container according to an embodiment of the present invention.
Fig. 1b is a schematic front view of a mold system for forming a very large glass fiber reinforced plastic container according to an embodiment of the present invention.
Fig. 2a is a schematic diagram of a split mold structure in an embodiment.
Fig. 2b is a schematic view showing a partial structure of the split mold of fig. 2 a.
Fig. 3 is a schematic view of a support structure in an embodiment.
Fig. 4 is a schematic structural diagram of a synchronous lifting mechanism in an embodiment.
Fig. 5a is a schematic structural view of an ejector plate mechanism in an embodiment.
Fig. 5b shows a partial detail view of the ejector rod of fig. 5 a.
Fig. 5c shows a schematic view of the ejector rod mounting relationship.
FIG. 6 is a schematic diagram illustrating the relationship between the ejector pins and the ejector plate.
In the figure: 10-a die body; 20-supporting frames; 30-a synchronous lifting mechanism; 40-universal casters; 50-an ejector plate mechanism; 11-split mould 1; 12-split mold 2; 13-split mold 3; 14-split mould 4; 15-split mould 5; 121-an exhaust hole; 122-hanging bolt holes; 123-a screw hole with the support frame; 124-screw holes between split dies; 125-an ejection hole; 126-positioning blocks among split molds; 127-split die connecting flange; 128-sealing groove at the flange; 21-a bottom bracket of the mold; 22-a flange mounting platform at the upper part of the die; 23-a screw elevator mounting platform; 24-a drive motor mounting platform; 25-caster mounting platform; 31-a drive motor; 32-a commutator; 33-screw elevator; 51-ejecting a flat plate; 52-a frame; 53-ejector pins; 54-elevator mounting; 55-a spring assembly; 56-a movable plate; 551-spring; 552-an adjustment nut; 553-locating shims.
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 the technical features or combinations of technical features described in the following embodiments should not be regarded as being isolated, and they may be combined with each other to achieve a better technical effect.
As shown in fig. 1a to 1b, the molding die system for the oversized glass fiber reinforced plastic container body according to the embodiment of the invention comprises a die body 10, a synchronous lifting mechanism 30, an ejector plate mechanism 50 and a supporting frame 20.
In one embodiment, the die body 10 is made of metal, and is formed by a plurality of split dies and is mounted on the support frame 20. A flange structure and a sealing strip are arranged between every two adjacent split dies, and the 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, the ejector plate mechanism 50 is provided with a plurality of ejector rods 53, and the molded component is ejected and supported. 40 is a heavy-duty castor.
As shown in fig. 2a, in one embodiment, the split metal mold 10 has 5 blocks, and the number of the blocks is small according to the processing difficulty, so that the processing cost is low. Fig. 2b is a schematic structural diagram of a second mold (split mold 2) 12, on which an exhaust hole 121, a hanging bolt hole 122, a bolt hole 123 with a frame, a bolt hole 124 between split molds, an ejection hole 125 of an ejection mechanism, a positioning block 126 between split molds, a flange 127 at the interconnection of split molds, and a sealing groove 128 at the flange are arranged. The shape of the die is designed to reduce weight. The split dies can be connected and sealed with each other and with the support frame 20 through the screw connection holes, and can be independently hoisted through screwing the hanging joint (through the hanging bolt hole 122). And the exhaust hole 121 at the flange is used for installing an exhaust joint from below and pumping air in the die cavity. The ejection hole 125 is a concave structure, and a sealing ring is arranged at the lower part and is used for being attached and sealed with the lower surface of the ejection rod 53.
In one embodiment, as shown in FIG. 3, the support frame 20 is welded from steel such as rectangular tubing, channel steel, I-steel, etc. The support frame 20 is provided with a die bottom bracket 21, a die upper flange mounting platform 22, a spiral elevator mounting platform 23, an elevator mechanism driving motor mounting platform 24 and a caster mounting platform 25. The bottom bracket 21 is used to support the die body 10 from below, the upper mounting platform 22 is used to mount the upper flange of the die, the screw elevator mounting platform 23 is used to mount the screw elevator 33, the elevator mechanism drive motor mounting platform 24 is used to mount the drive motor, and the bottom caster mounting platform 25 is used to mount the heavy duty caster 50.
In one embodiment, as shown in fig. 4, the synchronous lifting mechanism 30 adopts a mode of driving a plurality of lifters by one motor, and comprises a driving motor 31, a commutator 32 and a spiral lifter 33, so that synchronous lifting of the lifters can be realized.
As shown in fig. 5a, 5b, and 5c, in one embodiment, the ejector plate mechanism 50 and the ejector plate 51 are located between the synchronous lifting mechanism 30 and the mold body 10, so as to transmit uniform ejection force, and ensure that the demolding of the molded member is safer and more effective. The ejector mechanism 50 is provided with an ejector plate 51, a frame 52, ejector rods 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 the demolding force. The ejector rod 53 is connected to the ejector plate 51 (the lower end of the ejector rod 53 passes through the ejector plate 51, the ejector rod 53 is provided with a shaft shoulder, and the ejector rod 53 provides supporting force for the ejector rod 53 through the shaft shoulder when the ejector plate 51 is upwards moved), and the ejector rod 53 passes through the ejector hole 125 of the mold body 10 to apply ejecting force to the molded glass fiber reinforced plastic member. The elevator mount 54 is for connection with the screw elevator 33. A spring assembly 55 is located between the ejector plate 51 and the ejector rod 53 for applying a downward tension to the ejector rod 53.
As shown in FIG. 6, in one particular embodiment, spring assembly 55 is comprised of a spring 551, a spring positioning adjustment nut 552, and a spring positioning washer 553. The spring positioning 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 screw structure) through a screw structure, so as to adjust the expansion and contraction amount of the spring 551. When the ejector plate 51 moves upwards, the ejector rod 53 is pushed to move upwards by applying force to the shaft shoulder of the ejector rod 53, so that demoulding action is realized; when the ejector plate 51 moves downwards, the ejector plate 51 compresses the spring 551, the spring 551 presses the positioning adjusting nut 552 downwards, and further downward pulling force on the ejector rod 53 is achieved, and homing action of the ejector mechanism 30 is completed.
Because of manufacturing errors and installation errors, when the multiple groups of ejector rods 53 retract and return, part of the ejector rods 53 tend to return to the position, and the rest of the ejector rods 53 cannot contact with the upper plane at the position of the die ejection hole 125, so that air leakage is caused in the use process of the die body.
The spring assembly 55 has the significance of eliminating the inconsistency of the height direction of the ejection mechanism 30 during homing caused by manufacturing errors and installation errors, ensuring that each ejection rod 53 can be tightly pressed and sealed with the die body during homing, and avoiding that part of the ejection rods 53 cannot be effectively contacted with the upper plane of the ejection hole 125 of the die body.
The embodiment of the invention discloses a demolding method of a molding die for an oversized glass fiber reinforced plastic packaging box body, which uses the molding die system for the oversized glass fiber reinforced plastic packaging box body; the demolding method comprises the following steps:
S1, after a glass fiber reinforced plastic box body is molded in a mold body, a driving motor 31 of a synchronous lifting mechanism 30 is started, a reverser 32 synchronously drives a spiral lifter 33 to move upwards, drives an ejection flat plate 51 arranged on the spiral lifter 33 to move upwards, and an ejection rod 53 arranged on the ejection flat plate 51 moves upwards through an ejection hole 125 at the bottom of the mold body 10 to eject the molded glass fiber reinforced plastic box body to realize demolding;
S2, after demoulding is completed, the driving motor 31 reversely rotates 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 part of the ejector rod 53 descends to the upper end surface of the ejector hole 125, the ejector rod 53 is limited and does not descend any more; the ejector plate 51 continues to move downwards to the set position, and the ejector rod 53 and the die body 10 are kept under continuous tension by the spring assembly 55, so that sealing is realized, and the die tightness during the molding 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.
Although a few embodiments of the present invention have been described herein, those skilled in the art will appreciate that changes can be made to the embodiments herein without departing from the spirit of the invention. The above-described embodiments are exemplary only, and should not be taken as limiting the scope of the claims herein.
Claims (7)
1. The molding die system is characterized by comprising a die body, a synchronous lifting mechanism, an ejector plate mechanism and a supporting frame;
The bottom of the die body is provided with a plurality of ejection holes, and the ejection plate mechanism positioned at the lower part of the die body is provided with ejection 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 pass through the ejector hole upwards to eject the formed glass fiber reinforced plastic container body from the mold body;
The supporting frame is used for supporting the die body, the synchronous lifting mechanism and the ejector plate mechanism;
The synchronous lifting mechanism comprises a driving motor, a commutator and a spiral lifter; the spiral lifters are multiple, and one driving motor drives the spiral lifters to synchronously lift through the reverser;
the ejection plate mechanism comprises an ejection flat plate, an ejection rod, a spring assembly and an elevator installation table;
The lower bottom surface of the ejection flat plate is provided with the elevator installation table at a position corresponding to the spiral elevator and 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 installation table;
The upper end of the ejection rod is provided with an expansion part, and the lower end of the ejection rod penetrates through the ejection flat plate; the spring component is arranged between the lower end of the ejector rod and the lower bottom surface of the ejector plate and is used for providing downward pulling force for the return of the ejector rod; the upper end of the ejector rod passes 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;
The die body is a plurality of split metal dies, and the split metal dies are connected and sealed through a flange, a flange sealing groove and a screw hole; the flange is provided with an exhaust hole for installing an exhaust joint from below and extracting air in the die cavity; the ejection hole is of a concave structure, and a sealing ring is arranged at the lower part of the concave structure and used for being attached and sealed with the expansion part of the ejection rod.
2. The oversized glass fiber reinforced plastic box body forming die system of claim 1, wherein a sealing ring is arranged at the contact of the upper part of the ejection hole and the expansion part of the ejection rod.
3. The oversized glass fiber reinforced plastic box body forming die system of claim 1, wherein the supporting frame is of a frame structure and is formed by welding profile steel; the support frame is provided with a die bottom bracket, a die upper flange mounting platform, a spiral elevator mounting platform, a driving motor mounting platform and a trundle mounting platform; the die bottom bracket is used for supporting the die body from the lower part, the die upper flange mounting platform is used for mounting the upper flange of the die, the spiral elevator mounting platform is used for mounting the spiral elevator, the driving motor mounting platform is used for mounting the driving motor, and the truckle mounting platform is used for mounting heavy-duty universal truckles.
4. The oversized glass fiber reinforced plastic housing forming die system of claim 3, wherein the section steel comprises a rectangular tube, a channel steel, and an i-steel.
5. The oversized glass fiber reinforced plastic box body forming die system of claim 1, wherein a movable plate for transmitting uniform ejection force is provided at the top of the ejector rod.
6. A method for demolding a molding die for a container body of an oversized glass fiber reinforced plastic, characterized in that the molding die system for the container body of the oversized glass fiber reinforced plastic is used according to any one of claims 1 to 5; the demolding method comprises the following steps:
S1, after a glass fiber reinforced plastic box body is formed in a die body, a driving motor of a synchronous lifting mechanism is started, a spiral lifter is synchronously driven to move upwards through a reverser, an ejection flat plate arranged on the spiral lifter is driven to move upwards, an ejection rod arranged on the ejection flat plate passes through an ejection hole at the bottom of the die body to move upwards, and the formed glass fiber reinforced plastic box body is ejected;
S2, after demoulding is completed, the driving motor reversely rotates to drive the spiral lifter to move downwards to drive the ejection flat plate to move downwards; the spring component arranged between the lower end of the ejector rod and the lower bottom surface of the ejector plate is compressed, and downward tension is provided for the return of the ejector rod; when the expansion 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 ejector flat plate continues to move downwards to a set position, so that compression sealing between the expansion part of the ejector rod and the ejector hole is realized.
7. The method according to claim 6, wherein in the step S2, a position sensor is provided at a set position of the ejector plate in a downward direction, and when the ejector plate is in the downward direction to the set position, the position sensor is triggered to stop the driving motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111289496.5A CN114228001B (en) | 2021-11-02 | 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 | 2021-11-02 | Forming die system and demolding method for ultra-large glass fiber reinforced plastic box body |
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| Publication Number | Publication Date |
|---|---|
| CN114228001A CN114228001A (en) | 2022-03-25 |
| CN114228001B true 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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| CN114228001A (en) | 2022-03-25 |
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