CN116697833B - Composite material packaging box and preparation method thereof - Google Patents

Composite material packaging box and preparation method thereof Download PDF

Info

Publication number
CN116697833B
CN116697833B CN202310937098.2A CN202310937098A CN116697833B CN 116697833 B CN116697833 B CN 116697833B CN 202310937098 A CN202310937098 A CN 202310937098A CN 116697833 B CN116697833 B CN 116697833B
Authority
CN
China
Prior art keywords
box body
glass fiber
fiber reinforced
reinforced plastic
lower box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202310937098.2A
Other languages
Chinese (zh)
Other versions
CN116697833A (en
Inventor
祁腾飞
张毅
安梦雷
唐占文
闫继峰
王海
黄朋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Aistar Aerospace Technology Co ltd
Original Assignee
Beijing Aistar Aerospace Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Aistar Aerospace Technology Co ltd filed Critical Beijing Aistar Aerospace Technology Co ltd
Priority to CN202310937098.2A priority Critical patent/CN116697833B/en
Publication of CN116697833A publication Critical patent/CN116697833A/en
Application granted granted Critical
Publication of CN116697833B publication Critical patent/CN116697833B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/22Locking of ammunition in transport containers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D43/00Lids or covers for rigid or semi-rigid containers
    • B65D43/26Mechanisms for opening or closing, e.g. pedal-operated
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42AMMUNITION; BLASTING
    • F42BEXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/24Shock-absorbing arrangements in packages, e.g. for shock waves
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/80Packaging reuse or recycling, e.g. of multilayer packaging

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)

Abstract

The invention provides a composite material packing box and a preparation method thereof, wherein the packing box comprises an upper box body and a lower box body; the upper box body is covered on the lower box body, one side of the upper box body is hinged with the lower box body, and the other side of the upper box body is detachably connected with the lower box body; a bracket is arranged in the lower box body; the bracket is provided with a hoop; the upper box body and the lower box body respectively comprise an inner glass fiber reinforced plastic wallboard, a glass fiber reinforced plastic skeleton and an outer glass fiber reinforced plastic wallboard which are sequentially arranged from inside to outside, and foam is filled in a space surrounded by the inner glass fiber reinforced plastic wallboard, the glass fiber reinforced plastic skeleton and the outer glass fiber reinforced plastic wallboard. The glass fiber reinforced plastic skeleton between the inner glass fiber reinforced plastic wallboard and the outer glass fiber reinforced plastic wallboard of the composite material packing box can strengthen the strength of the key bearing position of the packing box; foam between the inner glass fiber reinforced plastic wall plate and the outer glass fiber reinforced plastic wall plate and the glass fiber reinforced plastic framework ensures the structural strength and simultaneously realizes the light weight of the product; the inner and outer glass fiber reinforced plastic wall plates can meet the bearing requirements in all directions.

Description

Composite material packaging box and preparation method thereof
Technical Field
The invention belongs to the technical field of missile packaging, and particularly relates to a composite material packaging box and a preparation method thereof.
Background
The missile packaging box is an important means for protecting the missiles from the external natural environment and the mechanical environment. The composite material packing box has the characteristics of firmness, durability, long service life, light weight and the like, and is a novel packing form for missile packing. Functionally, the packing box needs to reliably protect the missile and has convenient use, thereby meeting the requirements of mechanical loading, unloading, transportation and storage management. From the aspect of opening and closing, the missile packing box can be divided into 2 structural systems, namely an up-and-down opening and closing type and an axial end surface opening and closing type.
The utility model provides an axial terminal surface opens and shuts formula packing box, the end cover sets up in axial promptly, and the end cover is opened and shut along axial direction during the use, for example chinese patent document with publication No. CN215555160U discloses an explosion-proof packing box of flight training bullet, including box and case lid and hasp, the box is upper end open-ended straight section of thick bamboo, and the open end of box is provided with the case lid, and the hasp is used for locking box and case lid. The axial end face opening and closing type packing box has the following advantages: the end face is used for uncovering, the opening area is small, and the stress at the opening is small under the same pressure; the bonding area of the end cover and the box body is small, the rigidity is high, and the sealing is easy to realize; the ring rib can be continuous and has strong bearing capacity. However, the axial end face opening and closing type packing box is axially opened in the direction of opening the cover, so that the packing box needs to be pulled out in the axial direction when the product is assembled and disassembled, and a large space is required for operation; the bracket for supporting the missile is stored in the box body, and is required to be pulled out of the box body when in use, so that the operation is complicated; the bracket has a complex structure, the bracket is required to realize product boxing and boxing, the step difference between the inner cavity of the box body and the ground is required to be solved when the product is boxed and boxed, and the problem of high movement resistance of the bracket during full loading is also solved; requiring more operators.
The up-and-down opening and closing type packing box is opened and closed along the up-and-down direction when in use. The up-down opening and closing type packing box has the following advantages: when the product is loaded and unloaded, the guided missile is taken and put in the up-down direction, and the operation occupation space is small; the packing box is simple to operate, and the product can be directly hoisted from the inside of the box body; no other mechanism exists in the box body of the packing box, and the structure of the packing box is simple; the operation of the packing box needs less operators. However, the opening of the packing box is larger, the pressure at the opening is larger under the same pressure, and the requirement on the rigidity of the packing box is higher; the joint surface area of the upper box body and the lower box body of the packing box is large, and hidden danger exists by adopting conventional sealing. The Chinese patent document with publication number of CN218318342U discloses a composite material pressurizing packing box which is opened and closed up and down and comprises a lower box body and an upper box body, wherein a sealing frame is arranged on the bonding surface of the lower box body and the upper box body, and locking components are arranged on the periphery of the sealing frame. However, although the upper and lower boxes of the up and down open-close type composite material pressurizing packing box are provided with the reinforcing ribs, the overall rigidity of the side walls of the boxes is insufficient, sealing is realized only through the sealing frame and the lock catches, in the actual use process, stamping in the boxes is easy to deform, and further the flatness of the butt joint surfaces of the upper and lower boxes is changed, so that the sealing frame cannot be completely compacted, and the sealing performance is insufficient.
Disclosure of Invention
The invention solves the technical problem of providing a composite material packing box and a preparation method thereof, wherein a glass fiber reinforced plastic framework is arranged between inner and outer glass fiber reinforced plastic wall plates of the packing box, so that the strength of key bearing positions of the packing box can be enhanced; foam between the inner glass fiber reinforced plastic wall plate and the outer glass fiber reinforced plastic wall plate and the glass fiber reinforced plastic framework ensures the structural strength and simultaneously realizes the light weight of the product; the inner and outer glass fiber reinforced plastic wall plates have quasi isotropy, and can meet the bearing requirements in all directions; the upper box body, the lower box body wall plate, the framework and the foam are integrally formed, and are sealed by adopting the active inflatable sealing ring, so that the sealing performance is good, and the requirements of airtight, rainproof and salt mist prevention are met.
In order to solve the above problems, an aspect of the present invention provides a composite packing box, including an upper box and a lower box; the upper box body is covered on the lower box body; one side of the upper box body is hinged with the lower box body, and the other side of the upper box body is detachably connected with the lower box body through a locking structure; at least two brackets are arranged in the lower box body, and the brackets are suitable for placing missiles; each bracket is provided with a hoop which is used for fixing the missile with the bracket; the upper box body comprises a first inner glass fiber reinforced plastic wall plate, a first glass fiber reinforced plastic framework and a first outer glass fiber reinforced plastic wall plate which are sequentially arranged from inside to outside, and a space surrounded by the first inner glass fiber reinforced plastic wall plate, the first glass fiber reinforced plastic framework and the first outer glass fiber reinforced plastic wall plate is filled with first foam; the lower box comprises a second inner glass fiber reinforced plastic wall plate, a second glass fiber reinforced plastic framework and a second outer glass fiber reinforced plastic wall plate which are sequentially arranged from inside to outside, and second foam is filled in a space surrounded by the second inner glass fiber reinforced plastic wall plate, the second glass fiber reinforced plastic framework and the second outer glass fiber reinforced plastic wall plate.
Preferably, a first groove is formed in the surface, which is in butt joint with the lower box, of the bottom of the upper box, and a sealing pressing strip is arranged in the first groove; the top of lower box with be equipped with the second recess on the face of last box butt joint, be equipped with the sealing washer in the second recess.
Preferably, the sealing ring is an inflatable sealing ring.
Preferably, a plurality of groups of reinforcing rib structures are arranged on the outer wall of the composite material packaging box in a circumferential direction.
Preferably, each group of the reinforcing rib structures comprises a first reinforcing rib and a second reinforcing rib which are arranged in parallel, and a limiting groove is formed between the first reinforcing rib and the second reinforcing rib; a stacking block protruding out of the limiting groove is arranged in the limiting groove at the bottom of the lower box body; the upper box is characterized in that a lug is arranged in a limit groove at the top of the upper box, a limit concave table is formed between the lug and the limit groove, and the stacking block of the lower box can be aligned with the limit concave table of the upper box and limit the relative movement of the lower box and the upper box in the horizontal direction.
Preferably, the top of the bracket is a circular arc groove, and the circular arc angle of the circular arc groove is 125-145 degrees; the surface of the circular arc-shaped groove is provided with a soft felt layer; the bracket is positioned at a position corresponding to the reinforcing rib structure in the lower box body.
Preferably, the side walls of the two ends of the lower box body in the length direction are also provided with cover opening mechanisms, and the cover opening mechanisms comprise driving assemblies, guide mechanisms, sliding blocks, pushing arms and supporting arms; the guide mechanism is arranged on the side wall of the lower box body; the sliding block is arranged on the guide mechanism in a sliding way; the driving assembly is used for driving the sliding block to move along the guide mechanism; one end of the pushing arm is hinged with the sliding block, and the other end of the pushing arm is hinged with the supporting arm; the support arm comprises a first end and a second end, the first end of the support arm is hinged with the guide mechanism, and the second end of the support arm is propped against the bottom of the upper box body; when the sliding block moves along the guide mechanism, the supporting arm can rotate around the hinge shaft of the supporting arm and the guide mechanism under the action of the pushing arm, so that the second end of the supporting arm lifts up or puts down the upper box body.
Preferably, the lifting device further comprises a plurality of lifting devices, wherein the lifting devices are arranged on the lower box body and are positioned in the limiting grooves, and the lifting devices are connected with the second glass fiber reinforced plastic framework.
Preferably, the anchor ear comprises a left anchor ear and a right anchor ear which are arc-shaped, one end of the left anchor ear is hinged with the left side of the bracket, and the other end of the left anchor ear is provided with a first connecting boss; one end of the right hoop is hinged with the right side of the bracket, and a second connecting boss is arranged at the other end of the right hoop;
the composite material packaging box further comprises a hanging beam, a hanging ring is arranged at the top of the hanging beam, calipers are arranged at two ends of the hanging beam and are used for being connected with hanging points on the missile; the end part of the hanging beam is positioned between the first connecting boss and the second connecting boss, and is detachably fixed with the first connecting boss and the second connecting boss through fastening components.
The second aspect of the invention provides a method for preparing the composite material packaging box, which comprises the following steps:
s1, processing the first glass fiber reinforced plastic framework, the second glass fiber reinforced plastic framework, the first foam and the second foam;
s2, paving a preformed body of the first inner glass fiber reinforced plastic wallboard in a cavity of a die of an upper box body, pre-compacting, then installing the first glass fiber reinforced plastic skeleton, refilling first foam, finally paving the preformed body of the first outer glass fiber reinforced plastic wallboard, closing the cavity, injecting resin into the cavity, and curing and forming to obtain the upper box body;
s3, paving a preformed body of the second inner glass fiber reinforced plastic wallboard in a cavity of a die of the lower box body, pre-compacting, then installing the second glass fiber reinforced plastic skeleton, refilling second foam, paving the preformed body of the second outer glass fiber reinforced plastic wallboard, closing the cavity, injecting resin into the cavity, and curing and forming to obtain the lower box body;
s4, assembling the bracket and the anchor ear into the lower box body;
s5, assembling the lower box body and the upper box body, and installing the locking structure to obtain the composite material packing box.
Compared with the prior art, the invention has the following beneficial effects:
according to the composite material packing box, the glass fiber reinforced plastic framework is arranged between the inner glass fiber reinforced plastic wallboard and the outer glass fiber reinforced plastic wallboard, and can be used as the main bearing framework, so that the strength of key bearing positions of the packing box can be enhanced, the rigidity of the glass fiber reinforced plastic framework is effectively utilized by each bearing position, and the loaded load can be effectively transferred to the glass fiber reinforced plastic framework; foam is filled in the space between the inner glass fiber reinforced plastic wall plate and the outer glass fiber reinforced plastic wall plate and the glass fiber reinforced plastic framework, so that the structural strength is ensured, and the light weight of the product is realized; the inner and outer glass fiber reinforced plastic wall plates have quasi isotropy, can meet the bearing requirements in all directions, can ensure the large-area layering of the box body and the continuous fiber of key bearing parts, and have good process realization performance.
The composite material packing box disclosed by the invention is integrally formed by the upper box body, the lower box body wallboard, the framework and the foam, is sealed by adopting the active inflatable sealing ring, and meets the requirements of air tightness, rain resistance and salt fog resistance.
The composite material packing box provided by the invention has the advantages that the side opening turnover box cover is combined with the structures such as the cover opening mechanism, the lock catch and the like to realize manual quick opening and quick closing, and the composite material packing box is simple and convenient to operate and can be locked firmly.
According to the composite material packaging box, the hanging beam is combined with the bearing cohesion mechanism, and after the hanging beam is lifted, the hanging beam is directly reserved and fixed in the packaging box, so that the hanging beam does not need to be disassembled, and the hanging beam does not need to be mounted again when a missile is taken out, so that the multi-degree-of-freedom limit of a product is met, and meanwhile, efficient lifting is realized.
Drawings
Fig. 1 is a schematic structural view of a composite packing case according to an embodiment of the present invention;
fig. 2 is a schematic view of the external structure of a composite packing case according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a bracket and a hoop in a composite packing box according to an embodiment of the present invention;
FIG. 4 is a schematic view of a stiffener structure in a composite packing box according to an embodiment of the present invention;
fig. 5 is a schematic structural view of the bottom of a composite packing box according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a composite packing case according to an embodiment of the present invention;
fig. 7 is a schematic structural view of a second groove and a sealing ring on a lower case of the composite packing case according to the embodiment of the present invention;
fig. 8 is a schematic structural view of a cover opening mechanism in a composite packing box according to an embodiment of the present invention;
fig. 9 is a right side view of a lid opening mechanism in a composite packing case according to an embodiment of the present invention;
fig. 10 is a schematic structural view of a slide rail and a slide block in a cover opening mechanism in a composite material packaging box according to an embodiment of the present invention.
Wherein: 1-an upper box body; 2-lower box body; 3-locking structure; 4-brackets; 5-missile; 6-hoops; 9-a second groove; 10-sealing rings; 11-a first inner glass fibre reinforced plastic panel; 12-a first glass fiber reinforced plastic framework; 13-a first outer glass fibre reinforced plastic panel; 14-a first foam; 15-a reinforcing rib structure; 16-stacking blocks; 17-bump; 18-a cover opening mechanism; 19-end caps; 20-clamping buckle; 21-lifting appliance; 22-hanging beams; 23-calipers; 61-left hoop; 62-right hoop; 63-a first connection boss; 64-a second connection boss; 151-first reinforcing bars; 152-second reinforcing ribs; 153-limit groove; 180-mounting plates; 181-a drive assembly; 182-a guide mechanism; 183-sliders; 184-pushing arm; 185-support arm; 186-roller; 187-supporting bars; 188-conducting bars; 189-guide slots; 1821-a slide rail body; 1822-a chute; 1823-bump.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
The upper and lower opening and closing type missile packaging box has the advantages that as the opening is larger, the pressure at the opening is larger, and the rigidity requirement on the packaging box is higher; the joint surface area of the upper box body and the lower box body of the packing box is large, and hidden danger exists by adopting conventional sealing. However, the existing up-and-down opening and closing type missile packaging box has insufficient overall rigidity of the side wall of the box body and poor sealing performance.
Therefore, the embodiment of the invention provides the composite material packing box, which has high structural strength and good sealing performance.
As shown in fig. 1, 2 and 6, the composite packing box according to the embodiment of the invention comprises an upper box body 1 and a lower box body 2; the upper box body 1 is covered on the lower box body 2; one side of the upper box body 1 is hinged with the lower box body 2, and the other side of the upper box body 1 is detachably connected with the lower box body 2 through a locking structure 3; at least two brackets 4 are arranged in the lower box body 2, and the brackets 4 are suitable for placing missiles 5; each bracket 4 is provided with a hoop 6, and the hoop 6 is used for fixing the missile 5 and the bracket 4; the upper box body 1 comprises a first inner glass fiber reinforced plastic wall plate 11, a first glass fiber reinforced plastic framework 12 and a first outer glass fiber reinforced plastic wall plate 13 which are sequentially arranged from inside to outside, and a space surrounded by the first inner glass fiber reinforced plastic wall plate 11, the first glass fiber reinforced plastic framework 12 and the first outer glass fiber reinforced plastic wall plate 13 is filled with first foam 14; the lower box body 2 comprises a second inner glass fiber reinforced plastic wall plate, a second glass fiber reinforced plastic framework and a second outer glass fiber reinforced plastic wall plate which are sequentially arranged from inside to outside, and a second foam is filled in a space surrounded by the second inner glass fiber reinforced plastic wall plate, the second glass fiber reinforced plastic framework and the second outer glass fiber reinforced plastic wall plate.
According to the composite material packaging box disclosed by the embodiment of the invention, the glass fiber reinforced plastic framework is arranged between the inner glass fiber reinforced plastic wallboard and the outer glass fiber reinforced plastic wallboard, and can be used as the main bearing framework, so that the strength of key bearing positions of the packaging box can be enhanced, the rigidity of the glass fiber reinforced plastic framework is effectively utilized by each bearing position, and the load can be effectively transmitted to the glass fiber reinforced plastic framework; foam is filled in the space between the inner glass fiber reinforced plastic wall plate and the outer glass fiber reinforced plastic wall plate and the glass fiber reinforced plastic framework, so that the structural strength is ensured, and the light weight of the product is realized; the inner and outer glass fiber reinforced plastic wall plates have quasi isotropy, can meet the bearing requirements in all directions, can ensure the large-area layering of the box body and the continuous fiber of key bearing parts, and have good process realization performance.
In some embodiments, the glass fiber reinforced plastics in the inner and outer glass fiber reinforced plastic wall panels and the glass fiber reinforced plastic skeleton refer to glass fiber reinforced plastics which take unsaturated polyester, epoxy resin or phenolic resin as a matrix and glass fiber or products thereof as reinforcing materials. The resin matrix can be selected according to actual conditions, and the type, model and specification of the glass fiber can be selected according to actual conditions.
In some embodiments, the thickness of the inner and outer glass fiber reinforced plastic wall plates, the wall thickness of the glass fiber reinforced plastic in the glass fiber reinforced plastic skeleton and the thickness of the foam can be adjusted according to the actual required size, and preferably, the thickness of the first inner and outer glass fiber reinforced plastic wall plates is 1-8mm; the thickness of the second inner and outer glass fiber reinforced plastic wall plates is 1-8mm; the wall thickness of the glass fiber reinforced plastic in the first glass fiber reinforced plastic framework and the second glass fiber reinforced plastic framework is 5-20mm; the thickness of the first foam and the second foam is 40-80mm.
In some embodiments, one side long side of the upper case is connected with one side of the lower case through a plurality of hinges arranged at intervals, and the upper case rotates around a hinge connection shaft.
In some embodiments, the other long side of the upper case is detachably connected with the lower case 2 through a latch structure 3. Preferably, the locking structure is a connecting buckle, and the connecting buckle adopts a bolt buckle. The box body is filled with inert gas to protect the product, so that the box body has pressure, the hasp position is subjected to force from the inside to the outside, and the whole hasp position is subjected to shearing force, so that the bolt type hasp is adopted, and the lap joint strength of the bolt type hasp can be ensured.
In some embodiments, as shown in fig. 7, a first groove is formed on the surface of the bottom of the box body 1, which is in butt joint with the lower box body 2, and a sealing pressing strip is arranged in the first groove; the surface of the top of the lower box body 2, which is in butt joint with the upper box body 1, is provided with a second groove 9, and a sealing ring 10 is arranged in the second groove 9. Set up the sealing washer on the butt joint face of lower box, can improve the leakproofness between last box and the lower box, further, owing to go up the box and the size of box down is great, the butt joint face of two is uneven, easily leads to sealing washer and last box to paste and has the clearance, and then influences the gas tightness in the packing box, consequently, has set up sealed layering on the butt joint face of last box, further fills the clearance between sealing washer and the last box.
In some embodiments, the sealing bead may be bonded to the first groove by an adhesive.
Further preferably, the seal ring 10 is an inflatable seal ring. The inflatable sealing ring is an active inflatable sealing ring, an air nozzle is arranged on the active inflatable sealing ring, and inert gas can be filled into the inflatable sealing ring after the active inflatable sealing ring is connected with an external air supply device. Because in the in-service use, can fill inert gas in the packing box in order to protect the guided missile, the inside pressure of box is high, easily makes the box produce the deformation, and the planarization of upper and lower box butt joint face produces the change, leads to upper and lower box to the unable complete compaction of sealing washer, produces the circumstances of gas leakage. And after the inflatable sealing ring is adopted, inert gas is filled into the sealing ring, and the sealing ring is expanded and deformed under the pressure of the inert gas to be attached to the second groove of the lower box body and the butt joint surface of the upper box body, so that the compaction of the sealing ring is realized, and the sealing of the packing box is further ensured.
In some embodiments, the seal ring may be made of flexible rubber materials such as silicone rubber, nitrile rubber, and the like.
In some embodiments, multiple sets of reinforcing rib structures 15 are circumferentially provided on the outer wall of the composite packaging box. The outer wall surface rigidity of the packing box can be reinforced by the reinforcing rib structure. Further, the reinforcing rib structure is arranged on the main bearing part of the outer wall of the composite material packaging box.
In some embodiments, as shown in fig. 4 and 5, each set of reinforcing rib structures 15 includes a first reinforcing rib 151 and a second reinforcing rib 152 disposed in parallel, and a limiting groove 153 is formed between the first reinforcing rib 151 and the second reinforcing rib 152; a stacking block 16 protruding from the limiting groove 153 is arranged in the limiting groove at the bottom of the lower box body 2; the limit groove at the top of the upper box body 1 is internally provided with a protruding block 17, a limit concave table is formed between the protruding block 17 and the limit groove, and the stacking block 16 of the lower box body 2 can be aligned with the limit concave table of the upper box body 1 and limit the relative movement of the lower box body 2 and the upper box body 1 in the horizontal direction. The cooperation of the stacking block of the lower box body and the limiting concave table of the upper box body can enable the upper stacking packing box and the lower stacking packing box to be limited during stacking, and the uniformity and the stability of packing box stacking are guaranteed. The pile piece sets up in strengthening rib structure position department, can do benefit to the spacing groove that the strengthening rib formed on the one hand to spacing the pile piece, and on the other hand pile piece department atress is stronger, and the rigidity here can be strengthened to the strengthening rib.
Further, the number of stacking blocks arranged at each group of reinforcing rib structures is at least 2, so that stacking stability is guaranteed, but the number of the stacking blocks is not limited to 2, and can be 3, 4, 5 and the like. The protruding limit groove of different pile blocks has the same height.
In some embodiments, the bracket 4 may be made of various materials with certain strength, preferably, aluminum alloy materials. The shape of the bracket 4 is not particularly limited as long as it can support the missile. Preferably, as shown in fig. 3, the top of the bracket 4 is a circular arc groove, and the circular arc angle of the circular arc groove is preferably 125 ° -145 °, so that more stable bearing of the missile can be realized. Most preferably, the arc angle of the arc-shaped groove is 135 °. Preferably, a soft felt layer is arranged on the surface of the circular arc-shaped groove, namely, the soft felt layer is arranged at the contact position of the bracket and the missile, so that the bracket is prevented from damaging the surface of the missile in the moving process.
In some embodiments, at least 2 brackets 4 are provided in the lower housing, and further brackets 4 may be provided, for example 3, 4, 5, etc., the positions of the brackets 4 preferably being located in the lower housing 2 at positions corresponding to the stiffener structures 15. The bracket is arranged at the bearing part of the lower box body, the bracket is arranged at the reinforcing rib structure, and the reinforcing rib structure can strengthen the strength of the bearing part.
In some embodiments, the side walls of the two ends of the lower case 2 in the length direction are also provided with a cover opening mechanism 18, and the cover opening mechanism 18 comprises a driving assembly 181, a guiding mechanism 182, a sliding block 183, a pushing arm 184 and a supporting arm 185; the guide mechanism 182 is mounted on the side wall of the lower case 2; the slide block 183 is slidably arranged on the guide mechanism 182; the driving component 181 is used for driving the sliding block 183 to move along the guiding mechanism 182; one end of the pushing arm 184 is hinged with the sliding block 183, and the other end is hinged with the supporting arm 185; the support arm 185 includes a first end and a second end, the first end of the support arm is hinged with the guide mechanism 182, and the second end of the support arm 185 is propped against the bottom of the upper case 1; when the slider 183 moves along the guide mechanism 182, the support arm 185 is rotatable about the hinge shaft of the support arm 185 and the guide mechanism 182 by the pushing arm 184, so that the second end of the support arm 185 lifts or lowers the upper casing 1.
This mechanism of uncapping, when needs combined material packing box, drive slider 183 through drive assembly 181 and follow guiding mechanism 182 and remove, at this moment, follow slider 183 with slider 183 articulated push arm 184 and remove, rotate around the articulated shaft simultaneously, make support arm 185 be promoted and rotate around the articulated shaft of support arm 185 and guiding mechanism 182 to make the second end of support arm 185 raise, act on the lateral wall bottom of box on the packing box, make the upper box be lifted under ascending effect, realize the upper and lower opening and shutting of packing box. Through set up the mechanism of uncapping on the lower box of combined material packing box, turn over the operation of box on the packing box about manual, become to utilize drive assembly and pushing arm and support arm's cooperation to realize, not only can realize the quick opening and shutting of combined material packing box, can also use manpower sparingly greatly.
In some embodiments, a roller wheel 186 is also rotatably coupled to the second end of the support arm 185. When the supporting arm 185 rotates around the hinge shaft of the supporting arm 185 and the guiding mechanism 182 under the action of the pushing arm 184, the second end of the supporting arm 185 horizontally moves along the bottom of the side wall of the upper box body of the packaging box, and the sliding friction is converted into rolling friction by arranging the rollers, so that the friction force can be reduced, the action of the cover opening mechanism is smoother, and the effect of saving power is further achieved.
In some embodiments, the cover opening mechanism further comprises a support bar 187, the support bar 187 being adapted to be disposed at the bottom of the side walls of the case 1 on the composite material packaging case; the roller wheel 186 moves along the support bar 187 as the support arm 185 rotates about the hinge axis of the support arm 185 and the guide mechanism 182.
In some embodiments, the supporting bar 187 may be configured as a roller motion guiding structure, for example, a guiding bar 188 is disposed at the bottom of the supporting bar along the motion direction of the roller, and a guiding groove 189 capable of being matched with the guiding bar 188 is disposed on the roller 186, and the guiding groove 189 cooperate to realize the directional motion of the roller 186 and prevent the motion direction of the roller 186 from deviating.
Specifically, the specific longitudinal cross-sectional shapes of the guide bar 188 and the guide groove 189 can be adjusted, so long as the guide bar can be embedded in the guide groove, and the guide effect can be achieved in cooperation. Preferably, the longitudinal section of the guide bar 188 is V-shaped and the longitudinal section of the guide slot is V-shaped.
In some embodiments, the drive assembly may be any assembly that can drive the slider to move along the guide mechanism, for example, an electric telescopic rod, an electric linear rail, a telescopic cylinder, etc. Preferably, the drive assembly 181 comprises a drive mechanism and a lead screw nut mechanism; the driving mechanism is used for driving the screw rod of the screw rod nut mechanism to rotate; the slider 183 is connected to a nut of the screw nut mechanism. After the driving mechanism drives the screw rod to rotate, the sliding block is driven to move along the guiding mechanism under the action of the nut arranged on the screw rod. The driving mode of the screw nut mechanism is adopted, so that the running stability of the sliding block is higher, and fine adjustment can be performed.
In some embodiments, the drive mechanism includes a drive portion and a speed reducer, a drive shaft of the drive portion is connected to an input shaft of the speed reducer, and an output shaft of the speed reducer is connected to a lead screw of the lead screw nut mechanism. The speed reducer is used for reducing the rotation speed input by the driving part and increasing the torque so as to meet the opening and closing requirements of the packing box.
In some embodiments, the driving unit may be an electrically controlled driving unit or a manually controlled driving unit. The electrically controlled driving part may be a rotating motor, a rotating cylinder, or the like. The electric control mode is adopted, the opening and closing of the packaging box can be realized through external energy, manual operation is not needed, and time and labor are saved. The manual control driving part can be a manual rocker, and an output shaft of the manual rocker is connected with an input shaft of the speed reducer. In some scenes, the power supply is not required to be arranged on the packaging box body, so that the opening and closing of the packaging box can be driven by adopting a manual rocker mode, and the operation can be more labor-saving due to the fact that the translational force of the opening and closing packaging box, which is lifted up and down, is converted into the rotation force and the leverage of the manual rocker is utilized.
In some embodiments, since the axis of the manual rocker is necessarily perpendicular to the screw shaft, it is necessary to turn the direction of the rotational axis of the manual rocker to the axis of the screw shaft, and thus, the decelerator may employ a decelerator having an input axis perpendicular to the output axis in order to facilitate the direction change.
In some embodiments, the guiding mechanism 182 may be a rail, a slide rail, or the like, and preferably, the guiding mechanism 182 is a slide rail, and the slider 183 is slidably disposed on the slide rail.
In some embodiments, the slide rail includes a slide rail body 1821 and a slide slot 1822; the longitudinal section of the chute 1832 is dovetail-shaped; the bottom of the sliding block 183 is provided with a lug 1823, and the longitudinal section of the lug 1823 is dovetail-shaped; the protrusion 1823 is slidably inserted into the chute 1822. The dovetail-shaped sliding groove is matched with the convex block, so that stability is higher when the dovetail-shaped sliding groove moves, and the sliding block can be prevented from falling out of the sliding rail in the working process.
In some embodiments, the cover opening mechanism further includes a mounting plate 180, the mounting plate 180 is mounted on a side wall of the lower case 2, and the guide mechanism 182 is provided on the mounting plate 180.
In some embodiments, the side walls at two ends of the lower case 2 in the length direction are further provided with end caps 19, the end caps 19 are located on the outer sides of the cover opening mechanism 18, one side of each end cap 19 is hinged to the side wall, and the other side of each end cap 19 is detachably connected with the side wall through a buckle 20.
In some embodiments, a history box groove, an instrument groove, and an information groove are provided in a side wall of one of both ends in the longitudinal direction of the upper case 1. The instrument groove is used for placing a pressure gauge, a humidity indicator, an air charging and discharging valve, a safety valve and the like. The record box clamping groove is used for placing the record box.
In some embodiments, the composite material packaging box further comprises a plurality of lifting devices 21, wherein the lifting devices 21 are arranged on the lower box body 2 and are positioned in the limit grooves 153, and the lifting devices 21 are connected with the second glass fiber reinforced plastic framework. The lifting appliance is connected with the lifting device when the packing box is lifted. Specifically, the lifting appliance is made of steel materials. The lifting appliance can be hinged with the glass fiber reinforced plastic framework, so that folding is realized. The lifting appliance is arranged at the main bearing part of the box body, the lifting appliance is arranged in the limiting groove, and the strength of the lifting appliance can be enhanced by the reinforcing rib structure.
Preferably, the hangers 21 are symmetrically disposed at both sides of the length direction of the packing case.
In some embodiments, as shown in fig. 3, the anchor ear 6 includes a left anchor ear 61 and a right anchor ear 62 which are arc-shaped, one end of the left anchor ear 61 is hinged with the left side of the bracket 4, and the other end of the left anchor ear 61 is provided with a first connecting boss 63; one end of the right hoop 62 is hinged with the right side of the bracket 4, and the other end of the right hoop 62 is provided with a second connecting boss 64; the composite material packaging box further comprises a hanging beam 22, a hanging ring is arranged at the top of the hanging beam 22, calipers 23 are arranged at two ends of the hanging beam 22, and the calipers 23 are used for being connected with hanging points on the missile; the end of the hanging beam 22 is located between the first connection boss 63 and the second connection boss 64, and is detachably fixed to the first connection boss 63 and the second connection boss 64 by fastening members. In a conventional composite material packing box, the anchor ear and the hanging beam are independent, when a missile is loaded, the missile is connected below the hanging beam through a connecting structure on the caliper and the missile, then the hanging beam is lifted, the missile is lifted, the hanging beam is placed on the bracket, then the hanging beam is detached, the missile is fixed through the clamp, after the missile is placed in the packing box through the arrangement, the hanging beam is required to be detached, and when the missile is taken out, the hanging beam is required to be connected with the missile again, so that the operation is complex. In the embodiment, the end parts of the left hoop and the right hoop are respectively provided with the connecting bosses, after the missile is put in, the hanging beam and the bosses on the hoops can be connected through the fasteners, the hanging beam is locked in a positioning mode, the hanging beam is directly reserved and fixed in the packing box after the hoisting is completed, the multi-freedom-degree limiting requirement of a product is met, the hanging beam does not need to be disassembled, the hanging beam does not need to be installed again when the missile is taken out, and the operation is greatly simplified.
The composite material packing box of the invention comprises the following operation steps of: opening the upper box body, connecting the hanging beam with a product, lifting the product, placing the product on a bracket in the lower box body, encircling the anchor ear, fixing the product, fastening the anchor ear and the hanging beam, covering the upper box body, and then filling inert gas to protect the product. The operation steps when the missile is taken out of the packaging box are as follows: and discharging inert gas in the box body, opening the upper box body, disassembling the anchor ear and the hanging beam, opening the anchor ear, hoisting a product, and closing the upper box body.
Example 2
The preparation method of the composite material packaging box comprises the following steps:
s1, processing a first glass fiber reinforced plastic framework, a second glass fiber reinforced plastic framework, first foam and second foam on a machine tool;
s2, preparing an upper box body die, cleaning the surface of the die, brushing a release agent, and blanking the glass fiber prepreg according to a digital-to-analog development chart by using a blanking machine; laying a preformed body of a first inner glass fiber reinforced plastic wallboard in a cavity of an upper box body die according to a designed structure, compacting the layer for 3-5 times, then installing a first glass fiber reinforced plastic skeleton, refilling first foam, finally laying a preformed body of a first outer glass fiber reinforced plastic wallboard, compacting the layer for 3-5 times, then closing the die cavity, injecting special resin into the closed die cavity by utilizing pressure provided by a vacuum or injection device until the glass fiber preform in the whole cavity is completely infiltrated, finally performing curing molding and demolding to obtain an upper box body, cleaning the surface and flash of the product after the product is taken down, and repairing the flash of the product by using sand paper;
s3, preparing a lower box body die, cleaning the surface of the die, brushing a release agent, and blanking the glass fiber prepreg according to a digital-to-analog development chart by using a blanking machine; laying a preformed body of a second inner glass fiber reinforced plastic wallboard in a cavity of a lower box body die according to a designed structure, compacting the layer for 3-5 times, then installing a second glass fiber reinforced plastic skeleton, refilling second foam, finally laying a preformed body of a second outer glass fiber reinforced plastic wallboard, compacting the layer for 3-5 times, then closing the die cavity, injecting special resin into the closed die cavity by utilizing pressure provided by a vacuum or injection device until the glass fiber preform in the whole cavity is completely infiltrated, finally performing curing molding and demolding to obtain a lower box body, cleaning the surface and flash of the product after the product is taken down, and repairing the flash of the product by using sand paper;
s4, assembling the bracket and the anchor ear into the lower box body, and assembling the cover opening mechanism onto the side wall of the lower box body; the assembly process is specifically as follows: polishing the area needing to be bonded, firstly performing trial assembly, matching holes on the lower box body, checking trial assembly conditions, smearing adhesive on the bonding area after confirming no errors, connecting and fixing the cover opening mechanism, the bracket and the box body by using screws, heating by a baking oven to solidify the adhesive, and hinging the anchor ear to the bracket; assembling the hanging beam and the bracket, firstly performing trial assembly, checking trial assembly conditions, and connecting and fixing the hanging beam and the bracket by using a screw after confirming that errors exist;
s5, assembling the connecting piece of the upper box body and the lower box body, and installing a locking structure, wherein the specific assembling process is as follows: firstly, trial assembly of connecting pieces is carried out, holes are arranged on a box body, trial assembly conditions are checked, after the trial assembly conditions are confirmed, the areas needing to be bonded are polished, adhesive is smeared on the bonding areas, the connecting pieces connected with the upper box body and the box body are fixed by using screws, and an oven is heated to enable the adhesive to be solidified, so that the composite material packing box is obtained.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.

Claims (9)

1. The utility model provides a combined material packing box which characterized in that:
comprises an upper box body and a lower box body; the upper box body is covered on the lower box body; one side of the upper box body is hinged with the lower box body, and the other side of the upper box body is detachably connected with the lower box body through a locking structure; at least two brackets are arranged in the lower box body, and the brackets are suitable for placing missiles; each bracket is provided with a hoop which is used for fixing the missile with the bracket; the upper box body comprises a first inner glass fiber reinforced plastic wall plate, a first glass fiber reinforced plastic framework and a first outer glass fiber reinforced plastic wall plate which are sequentially arranged from inside to outside, and a space surrounded by the first inner glass fiber reinforced plastic wall plate, the first glass fiber reinforced plastic framework and the first outer glass fiber reinforced plastic wall plate is filled with first foam; the lower box body comprises a second inner glass fiber reinforced plastic wall plate, a second glass fiber reinforced plastic framework and a second outer glass fiber reinforced plastic wall plate which are sequentially arranged from inside to outside, and a space surrounded by the second inner glass fiber reinforced plastic wall plate, the second glass fiber reinforced plastic framework and the second outer glass fiber reinforced plastic wall plate is filled with second foam;
the anchor ear comprises a left anchor ear and a right anchor ear which are arc-shaped, one end of the left anchor ear is hinged with the left side of the bracket, and a first connecting boss is arranged at the other end of the left anchor ear; one end of the right hoop is hinged with the right side of the bracket, and a second connecting boss is arranged at the other end of the right hoop;
the composite material packaging box further comprises a hanging beam, a hanging ring is arranged at the top of the hanging beam, calipers are arranged at two ends of the hanging beam and are used for being connected with hanging points on the missile; the end part of the hanging beam is positioned between the first connecting boss and the second connecting boss, and is detachably fixed with the first connecting boss and the second connecting boss through fastening components.
2. The composite package of claim 1, wherein:
a first groove is formed in the surface, which is in butt joint with the lower box, of the bottom of the upper box, and a sealing pressing strip is arranged in the first groove; the top of lower box with be equipped with the second recess on the face of last box butt joint, be equipped with the sealing washer in the second recess.
3. The composite package of claim 2, wherein:
the sealing ring is an inflatable sealing ring.
4. The composite package of claim 1, wherein:
and a plurality of groups of reinforcing rib structures are annularly arranged on the outer wall of the composite material packaging box.
5. The composite package of claim 4, wherein:
each group of reinforcing rib structures comprises a first reinforcing rib and a second reinforcing rib which are arranged in parallel, and a limiting groove is formed between the first reinforcing rib and the second reinforcing rib; a stacking block protruding out of the limiting groove is arranged in the limiting groove at the bottom of the lower box body; the upper box is characterized in that a lug is arranged in a limit groove at the top of the upper box, a limit concave table is formed between the lug and the limit groove, and the stacking block of the lower box can be aligned with the limit concave table of the upper box and limit the relative movement of the lower box and the upper box in the horizontal direction.
6. The composite package of claim 4, wherein:
the top of the bracket is a circular arc groove, and the circular arc angle of the circular arc groove is 125-145 degrees; the surface of the circular arc-shaped groove is provided with a soft felt layer; the bracket is positioned at a position corresponding to the reinforcing rib structure in the lower box body.
7. The composite package of claim 1, wherein:
the side walls of the two ends of the lower box body in the length direction are also provided with cover opening mechanisms, and the cover opening mechanisms comprise driving assemblies, guide mechanisms, sliding blocks, pushing arms and supporting arms; the guide mechanism is arranged on the side wall of the lower box body; the sliding block is arranged on the guide mechanism in a sliding way; the driving assembly is used for driving the sliding block to move along the guide mechanism; one end of the pushing arm is hinged with the sliding block, and the other end of the pushing arm is hinged with the supporting arm; the support arm comprises a first end and a second end, the first end of the support arm is hinged with the guide mechanism, and the second end of the support arm is propped against the bottom of the upper box body; when the sliding block moves along the guide mechanism, the supporting arm can rotate around the hinge shaft of the supporting arm and the guide mechanism under the action of the pushing arm, so that the second end of the supporting arm lifts up or puts down the upper box body.
8. The composite package of claim 5, wherein:
the lifting device is arranged on the lower box body and is positioned in the limiting groove, and the lifting device is connected with the second glass fiber reinforced plastic framework.
9. A method of manufacturing a composite packaging box according to any one of claims 1 to 8, comprising the steps of:
s1, processing the first glass fiber reinforced plastic framework, the second glass fiber reinforced plastic framework, the first foam and the second foam;
s2, paving a preformed body of the first inner glass fiber reinforced plastic wallboard in a cavity of a die of an upper box body, pre-compacting, then installing the first glass fiber reinforced plastic skeleton, refilling first foam, finally paving the preformed body of the first outer glass fiber reinforced plastic wallboard, closing the cavity, injecting resin into the cavity, and curing and forming to obtain the upper box body;
s3, paving a preformed body of the second inner glass fiber reinforced plastic wallboard in a cavity of a die of the lower box body, pre-compacting, then installing the second glass fiber reinforced plastic skeleton, refilling second foam, paving the preformed body of the second outer glass fiber reinforced plastic wallboard, closing the cavity, injecting resin into the cavity, and curing and forming to obtain the lower box body;
s4, assembling the bracket and the anchor ear into the lower box body;
s5, assembling the lower box body and the upper box body, and installing the locking structure to obtain the composite material packing box.
CN202310937098.2A 2023-07-28 2023-07-28 Composite material packaging box and preparation method thereof Active CN116697833B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310937098.2A CN116697833B (en) 2023-07-28 2023-07-28 Composite material packaging box and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310937098.2A CN116697833B (en) 2023-07-28 2023-07-28 Composite material packaging box and preparation method thereof

Publications (2)

Publication Number Publication Date
CN116697833A CN116697833A (en) 2023-09-05
CN116697833B true CN116697833B (en) 2023-12-29

Family

ID=87824204

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310937098.2A Active CN116697833B (en) 2023-07-28 2023-07-28 Composite material packaging box and preparation method thereof

Country Status (1)

Country Link
CN (1) CN116697833B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733876A1 (en) * 1995-03-20 1996-09-25 ETAT FRANCAIS Représenté par le Délégué Général pour l'Armement Safety container for self-propelled missile
CN201476718U (en) * 2009-08-06 2010-05-19 中国航天科工集团第三总体设计部 Limit mechanism for missile packing box
CN102700628A (en) * 2012-06-27 2012-10-03 郑州红宇专用汽车有限责任公司 Heat preservation car panel with glass fiber reinforced plastic framework structure for foaming refrigerator car
CN107640482A (en) * 2017-10-26 2018-01-30 天津天重中直科技工程有限公司 A kind of dustbin with new cover-opening structure
CN206944842U (en) * 2017-05-09 2018-01-30 河北金后盾塑胶有限公司 A kind of guided missile storage case
CN218318342U (en) * 2022-08-30 2023-01-17 湖南弘辉科技有限公司 Composite material pressurizing packaging box

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6502696B2 (en) * 2001-01-31 2003-01-07 The United States Of America As Represented By The Secretary Of The Navy Strapless pallet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0733876A1 (en) * 1995-03-20 1996-09-25 ETAT FRANCAIS Représenté par le Délégué Général pour l'Armement Safety container for self-propelled missile
CN201476718U (en) * 2009-08-06 2010-05-19 中国航天科工集团第三总体设计部 Limit mechanism for missile packing box
CN102700628A (en) * 2012-06-27 2012-10-03 郑州红宇专用汽车有限责任公司 Heat preservation car panel with glass fiber reinforced plastic framework structure for foaming refrigerator car
CN206944842U (en) * 2017-05-09 2018-01-30 河北金后盾塑胶有限公司 A kind of guided missile storage case
CN107640482A (en) * 2017-10-26 2018-01-30 天津天重中直科技工程有限公司 A kind of dustbin with new cover-opening structure
CN218318342U (en) * 2022-08-30 2023-01-17 湖南弘辉科技有限公司 Composite material pressurizing packaging box

Also Published As

Publication number Publication date
CN116697833A (en) 2023-09-05

Similar Documents

Publication Publication Date Title
CN103660311B (en) A kind of integral forming method of Varying-thickness complex configuration composite joint
US8617338B2 (en) Method and manufacturing line for manufacturing wind turbine blades
US7464508B2 (en) Self-stiffened panels of preimpregnated composite and manufacturing process for components of such panels
EP2403708B1 (en) Method for manufacturing wind turbine blades
CN104260367B (en) The forming method of a kind of light composite material anatomical connectivity part
CN204322609U (en) Packing box automatic moulding machine
US11919203B2 (en) Mold for manufacturing a wind turbine blade and a method for manufacturing a wind turbine blade
CN1956883A (en) Window frame for aircraft
CN116697833B (en) Composite material packaging box and preparation method thereof
CN110299598A (en) A kind of aramid fiber covering-paper honeycomb interlayer barrel shell structure and its preparation method and application
CN115742367A (en) High-modulus carbon fiber composite main frame, preparation method and preparation mold
CN115676723A (en) Elevator with high-voltage insulation capacity
CN112895513B (en) Rail transit composite material vehicle body forming die and forming method thereof
CN104385681A (en) Automatic packing box forming machine and forming method thereof
US6713012B2 (en) Automated process and apparatus for forming a molded article
CN113002017A (en) Continuous paving and aligning tool and paving and aligning method for composite material
CN220522582U (en) Novel two lining health preserving device
CN213268976U (en) Convenient building material pusher
CN219470623U (en) Road construction equipment that flattens is repaired to road
CN114228001B (en) Forming die system and demolding method for ultra-large glass fiber reinforced plastic box body
KR102618778B1 (en) Press forming mold
CN211280103U (en) Rotating mechanism of laminating machine
CN219650673U (en) Multi-connecting-rod pressing edge plastering machine and packaging production equipment
CN209799774U (en) Air duct access door
CN219806414U (en) Forming die of wave plate is inhaled to high frequency

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant