CN111633994B - A plastic honeycomb core weaving forming mold - Google Patents
A plastic honeycomb core weaving forming mold Download PDFInfo
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- CN111633994B CN111633994B CN202010620912.4A CN202010620912A CN111633994B CN 111633994 B CN111633994 B CN 111633994B CN 202010620912 A CN202010620912 A CN 202010620912A CN 111633994 B CN111633994 B CN 111633994B
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- braiding
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- die
- upper die
- honeycomb core
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- 238000009941 weaving Methods 0.000 title description 6
- 239000000463 material Substances 0.000 claims abstract description 107
- 238000009954 braiding Methods 0.000 claims abstract description 74
- 230000007246 mechanism Effects 0.000 claims abstract description 51
- 238000003825 pressing Methods 0.000 claims abstract description 34
- 238000003780 insertion Methods 0.000 claims abstract description 10
- 230000037431 insertion Effects 0.000 claims abstract description 10
- 238000009940 knitting Methods 0.000 claims description 52
- 102000004315 Forkhead Transcription Factors Human genes 0.000 claims description 23
- 108090000852 Forkhead Transcription Factors Proteins 0.000 claims description 23
- 238000000465 moulding Methods 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 abstract description 2
- 238000002844 melting Methods 0.000 description 29
- 230000008018 melting Effects 0.000 description 28
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000007665 sagging Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- -1 acryl Chemical group 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/438—Joining sheets for making hollow-walled, channelled structures or multi-tubular articles
-
- 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
- B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb
- B29L2031/608—Honeycomb structures
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Braiding, Manufacturing Of Bobbin-Net Or Lace, And Manufacturing Of Nets By Knotting (AREA)
Abstract
The invention provides a plastic honeycomb core braiding and forming die, which belongs to the technical field of plastic honeycomb core processing, and comprises a base, a frame, a braiding lower die and a fusing upper die, wherein the braiding lower die comprises an X-axis transplanting mechanism, two YZ-axis transplanting mechanisms and two lower dies, braiding forks are arranged on the lower dies, the front ends of the two braiding forks are respectively provided with fork heads which are uniformly spaced, the fork heads of one braiding fork can be accommodated in a gap formed by two adjacent fork heads on the other braiding fork, the two YZ-axis transplanting mechanisms respectively drive the braiding forks arranged on the braiding forks to move, so that the two braiding forks do asynchronous opposite insertion and staggered movement to realize braiding of material belts arranged on the lower dies one by one, meanwhile, the fusing upper die carries out interval fusing on the two material belts which are adjacently braided, and the X-axis transplanting mechanism synchronously realizes the staggering of the fusing pressing positions of the two lower dies before fusing pressing positions.
Description
Technical Field
The invention relates to the technical field of plastic honeycomb core processing, in particular to a plastic honeycomb core braiding and forming die.
Background
Honeycomb is a hexagonally arranged structure (as shown in fig. 1) with hexagonal openings at one end and closed hexagonal pyramid bottoms at the other end. In the field of application materials, honeycomb materials are known for the characteristics of excellent compression resistance, bending resistance and ultra-light structure, and compared with other structures, a closed hexagonal equilateral honeycomb structure can obtain the maximum stress with the least materials from the mechanical aspect, and when the honeycomb structure is subjected to vertical load, the bending rigidity of the honeycomb structure is almost the same as that of solid materials with the same material and the same thickness, and is even higher, but the weight of the honeycomb structure is 70-90%. Therefore, it is widely used in the field of application materials.
The plastic honeycomb core is produced through compression molding, and through hot pressing single or several layers of laminated adhesive fabric into corrugated plate, adhering the corrugated plate in proper position with resin to form honeycomb blank, hardening the resin at proper temperature and pressure, and final cutting the hardened honeycomb material along the vertical direction of the holes. When in pressing, firstly, glass cloth is put on the template and the core rod to be hot-pressed into corrugated blanks, then adhesive is coated on the vertexes of the pressed corrugated blanks, and then the blanks coated with the adhesive are stacked to enable the vertexes of each two adjacent corrugations to be contacted with each other, and the glass cloth is cut into required lengths after the adhesive is hardened. However, the existing preparation method of the plastic honeycomb core has the defects of complicated production process, high die cost, high labor intensity, low production efficiency and the like, and limits the development of the plastic honeycomb core to a certain extent.
Disclosure of Invention
In order to solve the technical problems, the invention provides a plastic honeycomb core braiding and forming die, wherein a lower die adopts a lower die structure with two crossed structures, and the two lower dies asynchronously and oppositely insert and stagger, and synchronously reciprocate and horizontally misplace, so that material strips placed on the lower die one by one are braided and formed into a honeycomb core structure by the braiding operation of the material strips stacked one by one under the action of pressing and melting pressure of an upper die, thereby achieving the purposes of simplifying the production process, reducing the die cost and labor intensity and improving the production efficiency.
The invention provides a plastic honeycomb core braiding molding die which comprises a base and a frame arranged on the base, wherein a braiding lower die is arranged on the base, a melting upper die which is arranged above the braiding lower die in a matched mode is arranged above the braiding lower die, and the melting upper die is arranged on the frame. The material belts placed on the lower mould are woven through the lower mould, and partial bonding of two adjacent material belts after weaving is achieved through the upper mould interval melting and pressing.
Preferably, the lower braiding mold comprises an X-axis transplanting mechanism arranged on the machine base, two YZ-axis transplanting mechanisms symmetrically arranged on the X-axis transplanting mechanism and a lower mold respectively arranged on the two YZ-axis transplanting mechanisms. The structural design realizes asynchronous opposite insertion and staggered movement and synchronous reciprocating horizontal dislocation movement of the two lower dies.
Preferably, the two lower molds each comprise a knitting fork, the front ends of the two knitting forks are respectively provided with a fork head part with uniform intervals, and the fork head part of one knitting fork can be accommodated in a gap part formed by two adjacent fork head parts on the other knitting fork. The two YZ shaft transplanting mechanisms respectively drive the braiding forks arranged on the two YZ shaft transplanting mechanisms to move, so that the two braiding forks do asynchronous opposite insertion and staggered movement to realize braiding operation on the material belts arranged on the lower dies one by one, meanwhile, the upper melting dies are used for carrying out interval melting and pressing on the two adjacently braided material belts, and the X shaft transplanting mechanisms synchronously transplant the two lower dies to realize staggered melting and pressing positions at the rear melting and pressing positions than the front melting and pressing positions so as to manufacture the honeycomb core structure.
Preferably, the lower die comprises a lower die holder arranged on the YZ-axis transplanting mechanism, a lower die mounting plate arranged on the lower die holder and the braiding fork movably arranged on the lower die mounting plate.
The X-axis transplanting mechanism is provided with a limiting assembly, the limiting assembly comprises a limiting support arranged on the X-axis transplanting mechanism and a limiting piece movably arranged on the limiting support, the limiting piece is arranged above the lower die, the limiting piece comprises symmetrically arranged material guide plates and at least one material separation frame uniformly arranged between the two material guide plates, the two material guide plates are provided with avoidance grooves which are uniformly spaced and extend upwards from the bottom end, and fork heads on the braiding forks can be oppositely inserted into the avoidance grooves on the material guide plates at corresponding positions. This structural design carries out the limiting displacement to arranging in the material area on the bed die, plays the auxiliary role of being convenient for weave the operation to the material area.
The upper die comprises an intermediate plate arranged on the upper die lifting assembly, an upper die seat arranged on the intermediate plate and an upper die arranged at the bottom end of the upper die seat, at least two rows of even-interval melt-pressing convex blocks are arranged on the upper die, and the melt-pressing convex blocks can be correspondingly meshed with the upper end face of the fork head through the lifting action of the upper die lifting assembly. The purpose of the structural design is to realize the bonding operation of hot melting and compacting the two material belt areas superposed on the upper end face of the fork head.
Preferably, the upper die lifting assembly comprises a first mounting frame arranged on the upper die support, a first ball screw penetrating through the upper die support and rotatably arranged on the first mounting frame, and an upper die plate arranged at the output end of the first ball screw, wherein the middle plate is fixedly arranged on the upper die plate, and guide posts or guide sleeves which are arranged in a matched mode are respectively arranged on the upper die support and the upper die plate. The purpose of this structural design is to achieve the lifting or lowering operation of the upper mould relative to the mould.
Preferably, two sides of the upper die lifting assembly are respectively provided with a material inserting assembly, the material inserting assemblies respectively comprise a material inserting cylinder arranged on the upper die plate and a material inserting sheet arranged at the output end of the material inserting cylinder, and the two material inserting cylinders are arranged in an inverted splayed shape and respectively drive the material inserting sheets on the material inserting cylinders to insert the two ends of the material belt inwards. The purpose of the structural design is to enable the two ends of the material belt arranged on the lower die to be in a natural sagging state, so that the lower die can conveniently weave the material belt.
Preferably, the X-axis transplanting mechanism comprises an X-axis air cylinder, an X-axis sliding rail and an X-axis transplanting plate sliding along the X-axis sliding rail, wherein the X-axis air cylinder and the X-axis sliding rail are arranged on the machine base, and the output end of the X-axis air cylinder is pivoted with the X-axis transplanting plate to drive the X-axis transplanting plate to slide back and forth along the X-axis sliding rail. The structure design structurally ensures that the two lower dies are transplanted synchronously to realize the purpose that the rear melting and pressing position is staggered from the front melting and pressing position.
Preferably, the YZ-axis transplanting mechanism comprises a Y-axis sliding component arranged on the X-axis transplanting mechanism and a Z-axis lifting component arranged on the Y-axis sliding component, and the lower die is movably arranged on the Z-axis lifting component. The structure design enables the lower dies to move in a compound mode in the Y-axis direction and the Z-axis direction, and asynchronous opposite insertion and staggered movement of the two lower dies are achieved.
Preferably, the Y-axis sliding assembly comprises a Y-axis air cylinder, a Y-axis sliding rail and a lower die mounting frame sliding along the Y-axis sliding rail, wherein the Y-axis air cylinder and the Y-axis sliding rail are arranged on the X-axis transplanting plate, and the output end of the Y-axis air cylinder is pivoted with the lower die mounting frame to drive the lower die mounting frame to slide reciprocally along the Y-axis sliding rail.
The Z-axis lifting assembly comprises a Z-axis sliding rail, a second mounting frame and a second ball screw, wherein the Z-axis sliding rail and the second mounting frame are arranged on the lower die mounting frame, the second ball screw penetrates through and rotates on the second mounting frame, the lower die slides along the Z-axis sliding rail, the lower die is arranged at an output end on the second ball screw, and the lower die is lifted relative to the lower die mounting frame by positive and negative rotation of the second ball screw.
Compared with the existing plastic honeycomb core preparation tool, the plastic honeycomb core preparation tool has the following advantages:
1. The two braiding forks are driven by the YZ-axis transplanting mechanism to realize asynchronous opposite insertion and staggered movement of the two lower dies, so that the material belts which are placed on the lower dies one by one are braided, the two overlapped material belts on the upper end face of the fork head can be correspondingly meshed by combining the lifting action of the melt-pressing convex blocks through the upper die lifting assembly, the two adjacently braided material belts are subjected to spaced melt-pressing bonding, and the X-axis transplanting mechanism synchronously transplanting the two lower dies to realize the staggering of the rear melt-pressing position and the front melt-pressing position, so that the honeycomb core structure is manufactured. Compared with the existing manufacturing flow mode of the plastic honeycomb core structure, the method has the characteristics of simple production process, low die cost, low labor intensity and high production efficiency.
2. Adopt including the stock guide reaches the locating part that separates the work or material rest, wherein two on the stock guide from the bottom upwards extend set up evenly spaced dodge the groove, weave on the fork head can be to inserting in corresponding position on the stock guide on dodge the inslot, play to arrange in the isolation of a plurality of material strips on the fork of weaving and assist the lower mould is to its operation of weaving, prevent the different material strips cross phenomenon of weaving in-process, improve the processingquality and the machining efficiency of weaving. In addition, the two inserting sheets are arranged in an inverted splayed mode, so that two ends of a material belt arranged on the lower die are in a natural sagging state, and the lower die can conveniently weave the material belt.
Drawings
FIG. 1 is a front view of a plastic honeycomb core structure;
FIG. 2 is a schematic diagram of a three-dimensional structure of a plastic honeycomb core braiding mold according to the present invention;
FIG. 3 is a schematic diagram of a lower braiding die structure of a plastic honeycomb core braiding molding die;
FIG. 4 is a schematic diagram of a lower mold structure of a plastic honeycomb core braiding molding mold according to the present invention;
FIG. 5 is an enlarged schematic view of a portion of the mark A of FIG. 4;
FIG. 6 is a schematic diagram of a limiting assembly of a braiding molding die for a plastic honeycomb core according to the present invention;
FIG. 7 is an enlarged schematic view of a portion of the label B of FIG. 6;
FIG. 8 is a schematic diagram of a plastic honeycomb core braiding molding die melt upper die structure;
FIG. 9 is a schematic view of another view angle of the plastic honeycomb core knitting forming mold;
FIG. 10 is a schematic diagram of an X-axis transplanting mechanism of a plastic honeycomb core braiding and shaping mold;
FIG. 11 is a schematic diagram of a YZ-axis transplanting mechanism of a plastic honeycomb core braiding and shaping mold according to the invention;
FIG. 12 is a simplified flow chart of the knitting operation principle of the plastic honeycomb core knitting forming die;
The reference numerals indicate that 10-machine base, 11-frame, 20-lower knitting mold, 21-X axis transplanting mechanism, 211-X axial cylinder, 212-X axial slide rail, 213-X axis transplanting plate, 22-YZ axis transplanting mechanism, 221-Y axis sliding component, 2211-Y axial cylinder, 2212-Y axial slide rail, 2213-lower mold mounting frame, 222-Z axis lifting component, 2221-Z axial slide rail, 2222-second mounting frame, 2223-second ball screw, 23-lower mold, 231-lower mold base, 232-lower mold mounting plate, 233-knitting fork, 2331-fork head, 233 a-knitting fork one, 233 b-knitting fork two, 30-upper melting mold, 31-upper mold support, 32-upper mold lifting component, 321-first mounting frame, 322-first ball screw, 323-upper mold plate, 33-upper mold base, 331-middle plate, 332-upper mold base, 333-upper mold, 3331-melting press bump, 34-material inserting component, 341-material guiding component, 342-material guiding component, 2331-41-upper mold base, 41-422, limit frame, and limit frame.
Detailed Description
In order to make the technical scheme and technical effects of the invention more clear, the invention is further described below with reference to specific embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 2, a plastic honeycomb core braiding molding die comprises a base 10 and a frame 11 arranged on the base, wherein a braiding lower die 20 is arranged on the base 10, a melting upper die 30 matched with the braiding lower die is arranged above the braiding lower die, and the melting upper die 30 is arranged on the frame 11. In a specific practical process, in order to intuitively observe the operation and safety of the knitting forming mold, an acryl box body with an opening and closing door structure may be additionally arranged on the frame 11. The braiding material of the present invention is a plastic material with a material belt structure, specifically, the braiding lower die 20 can adjust the position in a three-dimensional space position, the upper melting die 30 adjusts the position only in a vertical direction, the braiding operation is performed on the material belts placed on the lower melting die 20 one by one, and the local bonding operation of the two adjacent material belts after braiding is performed by the upper melting die 30 in a space-type manner.
Referring to fig. 3, the lower knitting mold 20 includes an X-axis transplanting mechanism 21 provided on the base 10, two YZ-axis transplanting mechanisms 22 symmetrically provided on the X-axis transplanting mechanism, and a lower mold 23 provided on the two YZ-axis transplanting mechanisms, respectively. In the invention, the two lower dies 23 independently realize asynchronous opposite insertion and staggered movement in the Y-axis and Z-axis directions through the transplanting action of the YZ-axis transplanting mechanism 22 carrying the lower dies, so as to realize braiding operation on two material belts stacked one by one, and realize dislocation of the melting and pressing positions of the material belts by synchronous reciprocating horizontal movement of the two material belts after interval melting and pressing through the X-axis transplanting mechanism 21, thereby realizing braiding of the honeycomb core structure.
Referring to fig. 4, the lower mold 23 includes a lower mold base 231 provided on the YZ axis transplanting mechanism 22, a lower mold mounting plate 232 provided on the lower mold base, and the braiding forks 233 movably provided on the lower mold mounting plate. In this embodiment, two knitting forks 233 are disposed opposite to each other, so that in order to facilitate adjustment of the position between two knitting forks 233, a specific practice may be to provide a linear hole in the lower mold mounting plate 232, and to pass a fastener through the linear hole to achieve adjustable and fixed mounting of the knitting forks 233 on the lower mold mounting plate 232.
Referring to fig. 3 and 5, both of the lower molds 23 include a braid fork 233 thereon. Specifically, the front ends of two knitting forks 233 are respectively provided with a fork head 2331 with uniform spacing, and the fork head 2331 of one knitting fork 233 can be accommodated in a gap formed by two adjacent fork head 2331 on the other knitting fork 233, and in order to avoid the influence of the heat conduction of the fork head 2331 on the material belt during the melting and pressing process, the knitting fork 233 is generally made of a heat insulation material. In the invention, the two YZ-axis transplanting mechanisms 22 respectively drive the braiding forks 233 arranged on the mechanisms to move, so that the two braiding forks 233 asynchronously perform opposite insertion and staggered movement to realize braiding operation on the material belts arranged on the braiding forks 233 one by one, meanwhile, the upper melting mould 30 performs interval melting and pressing on the two material belts which are adjacently braided, and the X-axis transplanting mechanism synchronously transplants 21 the two braiding forks to realize the staggering of the rear melting and pressing position compared with the front melting and pressing position so as to manufacture a honeycomb core structure.
Referring to fig. 6 and 7, the X-axis transplanting mechanism 21 is provided with a limiting assembly 40, the limiting assembly 40 comprises a limiting bracket 41 arranged on the X-axis transplanting mechanism 21 and a limiting piece 42 movably arranged on the limiting bracket, and the limiting piece 42 is arranged above the lower die 23, wherein in order to meet different production requirements, a proper distance between the limiting piece 42 and the lower die 23 is conveniently adjusted, and a strip-shaped hole is formed in the limiting bracket 41 to realize the distance adjustment between the limiting piece 42 and the lower die 23. In the present invention, the limiting member 42 includes symmetrically disposed guide plates 421 and at least one material separating frame 422 uniformly disposed between the two guide plates, and the two guide plates 421 are provided with uniformly spaced avoiding grooves 4211 extending upward from bottom ends, which limit the material belt disposed on the lower mold 23, thereby facilitating the auxiliary effect of the material belt knitting operation. In this embodiment, the number of the material separating frames 422 is one, one material separating frame 422 divides the two material guiding plates 421 into two groups, so that the material belts can be conveniently placed, and the knitting forming mold is in a one-to-two production mode, in addition, the fork head parts 2331 on the knitting forks 233 can be inserted into the avoiding grooves 4211 on the material guiding plates 421 at corresponding positions, wherein the number of the avoiding grooves 4211 is one more than that of the fork head parts 2331, and the purpose is to realize the structure that the melting and pressing positions can be misplaced.
Referring to fig. 8 and 9, the upper mold assembly 30 includes an upper mold support 31 provided on the frame 11, an upper mold lifting assembly 32 provided on the upper mold support, and an upper mold assembly 33 provided on the upper mold lifting assembly, wherein the upper mold assembly 33 includes a middle plate 331 provided on the upper mold lifting assembly 32, an upper mold base 332 provided on the middle plate, and an upper mold 333 provided at the bottom end of the upper mold base. In the present invention, at least two rows of melt-pressed protrusions 3331 are provided on the upper mold 333 at uniform intervals, and the number of the specific rows is identical to the number of the groups of the material guiding plate 421 divided by the material separating frame 422. In this embodiment, the number of the melt-pressing protrusions 3331 is two, and the melt-pressing protrusions 3331 may be correspondingly engaged with the upper end surface of the fork head 2331 under the lifting action of the upper die lifting assembly 32, so as to implement the bonding operation of hot melting and pressing the two material belt regions stacked on the upper end surface of the fork head 2331.
Further, the upper die lifting assembly 32 includes a first mounting frame 321 disposed on the upper die support 31, a first ball screw 322 passing through the upper die support 31 and rotatably disposed on the first mounting frame 321, and an upper die plate 323 disposed at an output end of the first ball screw, and the middle plate 331 is fixedly disposed on the upper die plate 323. In this embodiment, the first ball screw 322 is driven by a motor to perform forward and reverse rotation, so that the upper template 323 performs lifting movement, and the upper die 333 performs lifting or lowering operation with respect to the lower die 23, so as to perform hot-melt compacting bonding operation after braiding the batch belt. In addition, in order to improve the accuracy of the position of the melt-pressing protrusion 3331 acting on the braid fork 233 and to improve the stability of the honeycomb core structure, the upper die support 31 and the upper die plate 323 are respectively provided with guide posts or guide sleeves which are arranged in a matching manner, so that the consistency of the melt-pressing position is ensured.
Further, two sides of the upper die lifting assembly 32 are respectively provided with a material inserting assembly 34, and the material inserting assemblies respectively comprise a material inserting cylinder 341 arranged on the upper die plate 323 and a material inserting sheet 342 arranged at the output end of the material inserting cylinder. In the production process, the two ends of the material belt are placed on the limiting support 41 due to the blocking of the limiting support 41, so that in the descending process of the knitting fork 233, the limiting support 41 supports the material belt and cannot influence the knitting operation along with the descending of the knitting fork 233. In this embodiment, the two material inserting cylinders 341 are arranged in inverted splayed shapes, and the material inserting sheets 342 thereon are respectively driven to insert the two ends of the material belt inwards, so that the two ends of the material belt disposed on the lower mold 23 are in a natural sagging state, which is convenient for the knitting operation of the lower mold 23 on the material belt.
Referring to fig. 10, the X-axis transplanting mechanism 21 includes an X-axis cylinder 211 and an X-axis slide rail 212 provided on the base 10, and an X-axis transplanting plate 213 sliding along the X-axis slide rail, where an output end of the X-axis cylinder 211 is pivoted with the X-axis transplanting plate 213, and drives the X-axis transplanting plate 213 to slide reciprocally along the X-axis slide rail 212, so that the two knitting forks 233 are transplanted synchronously, and a later melt-pressing position is staggered compared with a former melt-pressing position.
Referring to fig. 11, the YZ axis transplanting mechanism 22 includes a Y axis sliding component 221 disposed on the X axis transplanting mechanism 21 and a Z axis lifting component 222 disposed on the Y axis sliding component, and the lower mold 23 is movably disposed on the Z axis lifting component 222, so that the lower mold 23 performs a compound motion in the Y axis direction and the Z axis direction, thereby implementing an asynchronous opposite insertion and a staggered motion of the two lower molds 23.
Further, the Y-axis sliding assembly 221 includes a Y-axis cylinder 2211 and a Y-axis slide rail 2212 provided on the X-axis transplanting plate 213, and a lower die mounting frame 2213 sliding along the Y-axis slide rail, where an output end of the Y-axis cylinder 2211 is pivotally connected to the lower die mounting frame 2213, so as to drive the lower die mounting frame 2213 to slide reciprocally along the Y-axis slide rail 2212, so as to implement mutual insertion or separation of the fork head 2331 on the two knitting forks 233.
Further, the Z-axis lifting assembly 222 includes a Z-axis sliding rail 2221 and a second mounting frame 2222 disposed on the lower mold mounting frame 2213, and a second ball screw 2223 penetrating through and rotatably disposed on the second mounting frame, wherein the lower mold 23 slides along the Z-axis sliding rail 2221, and the lower mold 23 is disposed at an output end of the second ball screw 2223, and forward and backward rotation of the second ball screw 2223 causes the lower mold 23 to lift relative to the lower mold mounting frame 2213, so as to implement the up and down staggered movement of the fork head 2331 on the two knitting forks 233.
The working principle of the invention is that the specific steps are shown in FIG. 12, and the specific analysis is as follows:
STEP1, starting that the upper melting mold 30 and the lower knitting mold 20 are in a separated state, wherein the first knitting fork 233a is positioned above the second knitting fork 233b and is in a staggered state, and a first material belt in a straight line state is arranged at the upper end of the first knitting fork 233 a;
STEP2, the first knitting fork 233a descends along the Z axis, and simultaneously the second knitting fork 233b retreats along the Y axis, ascends along the Z axis and advances along the Y axis, at this time, the second knitting fork 233b is positioned above the first knitting fork 233a and is in a staggered state, and the first material belt in a straight state is positioned between the second knitting fork 233b and the first knitting fork 233 a;
STEP3, namely, the first knitting fork 233a ascends along the Z axis, so that the fork head of the second knitting fork 233b and the first knitting fork 233a are in an opposite inserting state, and a material belt I in a straight state is in a wavy structural state;
STEP4, the first knitting fork 233a, the second knitting fork 233b, the first melt-pressed and bonded material belt and the second melt-pressed and bonded material belt in the STEP3 state are completely separated from the limiting piece 42 under the synchronous action of the two Y-axis sliding assemblies 221, and then the whole is moved to the right by one position under the action of the X-axis transplanting mechanism 21, and the position of the melt-pressed protruding block 3331 on the second material belt is misplaced due to the unchanged position of the melt-pressed protruding block 3331;
STEP5, placing the material belt III in a straight state on the knitting fork II 233b, wherein the material belt III in the straight state is overlapped with a partial area of the material belt II in a wavy structure state;
STEP6, the melt-press convex block 3331 descends along the Z axis, and the material belt III and the material belt II are partially contacted and overlapped to be melt-press bonded through the high frequency principle;
STEP7, the first knitting fork 233a is retracted along the Y-axis and ascends along the Z-axis, and then advances along the Y-axis to be inserted into the fork head of the second knitting fork 233 b;
STEP8, the second knitting fork 233b descends along the Z axis to enable the material belt III in a straight state to be in a wave-shaped structure, and then the material belt IV in a straight state is placed on the first knitting fork 233a, and the process from STEP1 to STEP8 is carried out again, so that the honeycomb core structure can be manufactured.
The foregoing is a further detailed description of the invention in connection with the preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described. For those skilled in the art, the architecture of the invention can be flexible and changeable without departing from the concept of the invention, and serial products can be derived. But a few simple derivatives or substitutions should be construed as falling within the scope of the invention as defined by the appended claims.
Claims (9)
1. A plastic honeycomb core braiding and forming die comprises a base and a frame arranged on the base, wherein a braiding lower die is arranged on the base, a fusing upper die which is arranged above the braiding lower die and matched with the braiding lower die is arranged on the frame, the plastic honeycomb core braiding and forming die is characterized in that the braiding lower die comprises an X-axis transplanting mechanism arranged on the base, two YZ-axis transplanting mechanisms symmetrically arranged on the X-axis transplanting mechanism and lower dies respectively arranged on the two YZ-axis transplanting mechanisms, braiding forks are arranged on the two lower dies, front ends of the two braiding forks are respectively provided with a fork head part which is uniformly spaced, the fork head part of one braiding fork can be accommodated in a gap part formed by two adjacent fork head parts on the other braiding fork, the two YZ-axis transplanting mechanisms respectively drive the braiding forks arranged on the braiding fork to move, so that the two braiding forks do asynchronous opposite insertion and staggered movement to realize braiding operation on material belts arranged on the lower dies one by one, and simultaneously the fusing upper dies carry out interval pressing on the two adjacent material belts, and the two fusing upper dies are staggered to realize that the two honeycomb core braiding transplanting mechanisms are pressed synchronously.
2. The plastic honeycomb core knitting forming die of claim 1 characterized in that the lower die comprises a lower die holder arranged on the YZ-axis transplanting mechanism, a lower die mounting plate arranged on the lower die holder and the knitting fork movably arranged on the lower die mounting plate.
3. The plastic honeycomb core braiding molding die of claim 1 or 2, wherein the X-axis transplanting mechanism is provided with a limiting assembly, the limiting assembly comprises a limiting support arranged on the X-axis transplanting mechanism and a limiting part movably arranged on the limiting support, the limiting part is arranged above the lower die, the limiting part comprises symmetrically arranged material guide plates and at least more than one material separation frame uniformly arranged between the two material guide plates, the two material guide plates are provided with uniformly spaced avoidance grooves extending upwards from the bottom ends, and the fork heads on the braiding forks can be inserted into the avoidance grooves on the material guide plates at corresponding positions.
4. The plastic honeycomb core braiding molding die of claim 1, wherein the upper die comprises an upper die support arranged on the frame, an upper die lifting assembly arranged on the upper die support and an upper die set arranged on the upper die lifting assembly, the upper die set comprises a middle plate arranged on the upper die lifting assembly, an upper die seat arranged on the middle plate and an upper die arranged at the bottom end of the upper die seat, at least two rows of even-interval melting-pressing protruding blocks are arranged on the upper die, and the melting-pressing protruding blocks can be correspondingly meshed with the upper end face of the fork head through the lifting action of the upper die lifting assembly.
5. The plastic honeycomb core braiding molding die of claim 4, wherein the upper die lifting assembly comprises a first mounting frame arranged on the upper die support, a first ball screw penetrating through the upper die support and rotatably arranged on the first mounting frame, and an upper die plate arranged at the output end of the first ball screw, the middle plate is fixedly arranged on the upper die plate, and guide posts or guide sleeves which are arranged in a matched mode are respectively arranged on the upper die support and the upper die plate.
6. The plastic honeycomb core braiding molding die of claim 5, wherein the upper die lifting assembly comprises a material inserting assembly respectively arranged on two sides of the upper die lifting assembly, the material inserting assembly comprises a material inserting cylinder arranged on the upper die plate and a material inserting sheet arranged at the output end of the material inserting cylinder, and the two material inserting cylinders are arranged in an inverted splayed shape and respectively drive the material inserting sheets on the material inserting cylinders to insert two ends of a material belt inwards.
7. The plastic honeycomb core braiding molding die of claim 1, wherein the X-axis transplanting mechanism comprises an X-axis cylinder, an X-axis sliding rail and an X-axis transplanting plate, wherein the X-axis cylinder and the X-axis sliding rail are arranged on the base, and the output end of the X-axis cylinder is pivoted with the X-axis transplanting plate to drive the X-axis transplanting plate to slide back and forth along the X-axis sliding rail.
8. The plastic honeycomb core braiding molding die of claim 7, wherein the YZ-axis transplanting mechanism comprises a Y-axis sliding component arranged on the X-axis transplanting mechanism and a Z-axis lifting component arranged on the Y-axis sliding component, and the lower die is movably arranged on the Z-axis lifting component;
The Y-axis sliding assembly comprises a Y-axis air cylinder, a Y-axis sliding rail and a lower die mounting frame sliding along the Y-axis sliding rail, wherein the Y-axis air cylinder and the Y-axis sliding rail are arranged on the X-axis transplanting plate, and the output end of the Y-axis air cylinder is pivoted with the lower die mounting frame to drive the lower die mounting frame to slide reciprocally along the Y-axis sliding rail.
9. The plastic honeycomb core braiding molding die of claim 8, wherein the Z-axis lifting assembly comprises a Z-axis sliding rail and a second mounting frame which are arranged on the lower die mounting frame, and a second ball screw which penetrates through and rotates on the second mounting frame, the lower die slides along the Z-axis sliding rail, the lower die is arranged at an output end on the second ball screw, and the lower die is lifted and lowered relative to the lower die mounting frame by positive and negative rotation of the second ball screw.
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| CN118952680A (en) * | 2024-09-20 | 2024-11-15 | 淮安市东亚塑胶制品有限公司 | A high-frequency heat-sealing mold for a pure mesh double-stranded pool and its production process |
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| US4957577A (en) * | 1988-04-04 | 1990-09-18 | Plascore, Inc. | Method for making welded honeycomb core |
| US6383431B1 (en) * | 1997-04-04 | 2002-05-07 | The Procter & Gamble Company | Method of modifying a nonwoven fibrous web for use as component of a disposable absorbent article |
| DE19928712C1 (en) * | 1999-06-23 | 2000-11-16 | Achim Kehl | Free-standing flexible honeycomb material is composed of corrugated strips with a U-shaped cross section bonded together at their contact points |
| JP3992983B2 (en) * | 2000-01-11 | 2007-10-17 | ヴァーサコア・インダストリアル・コーポレイション | Method and apparatus for joining sections of thermoplastic web material |
| DE102004044278B4 (en) * | 2004-09-10 | 2007-03-22 | Heinz Schmidt | Honeycomb material of thermofusible material, and an apparatus and a method for producing such a honeycomb material |
| CA2940448A1 (en) * | 2014-03-07 | 2015-09-11 | Bombardier Inc. | Composite rivet blank and installation thereof |
| JP6777152B2 (en) * | 2017-06-14 | 2020-10-28 | 三菱ケミカル株式会社 | Manufacturing method of fiber reinforced composite molded product |
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