A plastic honeycomb core weaving forming mold

Abstract

The invention provides a plastic honeycomb core weaving forming mold, belonging to the technical field of plastic honeycomb core processing; the mold comprises a machine base, a frame, a weaving lower mold and a melting and pressing upper mold; the weaving lower mold comprises an X-axis transfer mechanism, two YZ-axis transfer mechanisms and two lower molds; the lower molds each comprise a weaving fork, the front ends of the two weaving forks are each provided with a fork head with a uniform interval, and the fork head of one of the weaving forks can be accommodated in a gap formed by two adjacent fork heads on the other weaving fork; the two YZ-axis transfer mechanisms respectively drive the weaving forks placed thereon to move, so that the two weaving forks perform asynchronous insertion and staggered motion to realize weaving of material strips placed one by one on the lower mold, and at the same time the melting and pressing upper mold performs interval melting and pressing on two adjacent weaving material strips, and the X-axis transfer mechanism synchronously transfers the two lower molds to realize the staggered rear melting and pressing position compared with the front melting and pressing position to form a honeycomb core structure; the invention achieves the purpose of simplifying the production process, reducing mold cost and labor intensity, and improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of plastic honeycomb core processing, in particular to a plastic honeycomb core weaving molding die. Background Art

[0002] Honeycomb is a structure composed of hexagonal arrangements (such as Figure 1 As shown in the figure, one end of the honeycomb is a hexagonal opening, and the other end is the bottom of a closed hexagonal pyramid. In the field of applied materials, honeycomb materials are well-known for their excellent compression and bending resistance and ultra-light structural characteristics. From a mechanical point of view, the closed hexagonal equilateral honeycomb structure can obtain the maximum force with the least material compared to other structures, and when the honeycomb structure is subjected to vertical load, its bending stiffness is almost the same as that of solid materials of the same material and thickness, or even higher, but its weight is 70-90% lighter. Therefore, it is widely used in the field of applied materials.

[0003] The prior art plastic honeycomb core is prepared by molding, which is to heat press a single layer or several layers of stacked adhesive tape into a neatly shaped corrugated plate with a mold, and then use resin to stick it into a honeycomb blank at an appropriate position and harden the resin at an appropriate temperature and pressure, and finally cut the hardened honeycomb material along the vertical direction of the hole. Or the upper and lower templates and mandrels are matched and pressed, and many honeycomb grooves are engraved on the surface of the template to fix the mandrel; when pressing, the glass cloth is first placed on the template and the mandrel and hot-pressed into a corrugated blank, and then the adhesive is applied to the vertices of the pressed corrugated blank, and then the blanks coated with adhesive are stacked up so that the vertices of each two adjacent corrugations are in contact with each other, and it can be cut into the required length after the adhesive hardens. However, the existing plastic honeycomb core preparation methods generally have the disadvantages of complicated production process, high mold cost, high labor intensity, and low production efficiency, which to a certain extent restrict the development of plastic honeycomb cores. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a plastic honeycomb core weaving forming mold, whose lower mold adopts two cross-arranged lower mold structures, and through the asynchronous insertion and staggered movement of the two lower molds, and the synchronous reciprocating horizontal offset movement, the material strips placed one by one on the lower mold are woven one by one under the action of the upper mold pressing and melting, so as to form a honeycomb core structure; the purpose of simplifying the production process, reducing mold cost and labor intensity, and improving production efficiency is achieved.

[0005] The invention provides the following technical solution: a plastic honeycomb core weaving forming mold, comprising a machine base and a frame arranged on the machine base; a weaving lower mold is arranged on the machine base, and a melting and pressing upper mold arranged to match the weaving lower mold is arranged above the weaving lower mold, and the melting and pressing upper mold is arranged on the frame. The structural design weaves the material strips placed on it one by one through the weaving lower mold, and the local bonding of the adjacent two material strips after weaving is achieved through the interval melting and pressing of the melting and pressing upper mold.

[0006] Preferably, the braiding lower mold includes an X-axis transfer mechanism arranged on the machine base, two YZ-axis transfer mechanisms symmetrically arranged on the X-axis transfer mechanism, and lower molds respectively arranged on the two YZ-axis transfer mechanisms. This structural design enables the two lower molds to perform asynchronous interleaving and interlacing movements, as well as synchronous reciprocating horizontal dislocation movements.

[0007] Preferably, both lower molds include weaving forks, and both front ends of the weaving forks are provided with evenly spaced fork heads, and the fork head of one of the weaving forks can be accommodated in the gap formed by the two adjacent fork heads on the other weaving fork. The two YZ-axis transfer mechanisms respectively drive the weaving forks placed thereon to move, so that the two weaving forks perform asynchronous interpolation and staggered motions to achieve weaving operations on the material strips placed one by one on the lower molds, while the upper melting and pressing mold performs interval melting and pressing on the two adjacent woven material strips, and the X-axis transfer mechanism synchronously transfers the two lower molds to achieve the staggered position of the rear melting and pressing position compared to the front melting and pressing position to form a honeycomb core structure.

[0008] Preferably, the lower mold includes a lower mold base arranged on the YZ-axis transfer mechanism, a lower mold mounting plate arranged on the lower mold base, and the braiding fork movably arranged on the lower mold mounting plate.

[0009] Preferably, the X-axis transfer mechanism is provided with a limit assembly, which includes a limit bracket provided on the X-axis transfer mechanism and a limit member movably provided on the limit bracket, and the limit member is mounted above the lower mold; the limit member includes symmetrically arranged material guide plates and at least one material spacer evenly arranged between the two material guide plates, and the two material guide plates are provided with evenly spaced avoidance grooves extending upward from the bottom ends, and the fork head on the braiding fork can be inserted into the avoidance groove on the material guide plate at the corresponding position. This structural design has a limiting effect on the material strip placed on the lower mold, and plays an auxiliary role in facilitating the braiding operation of the material strip.

[0010] Preferably, the melting and pressing upper die includes an upper die support provided on the frame, an upper die lifting assembly provided on the upper die support, and an upper die group provided on the upper die lifting assembly; the upper die group includes an intermediate plate provided on the upper die lifting assembly, an upper die seat provided on the intermediate plate, and an upper die provided at the bottom end of the upper die seat, and the upper die is provided with at least two rows of melting and pressing protrusions evenly spaced apart; the melting and pressing protrusions can be correspondingly engaged with the upper end surface of the fork head through the lifting action of the upper die lifting assembly. The purpose of this structural design is to achieve the hot melting and pressing bonding operation of the two material strip areas superimposed on the upper end surface of the fork head.

[0011] Preferably, the upper die lifting assembly comprises a first mounting frame arranged on the upper die support, a first ball screw passing 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 intermediate plate is fixed on the upper die plate; the upper die support and the upper die plate are respectively provided with matching guide pillars or guide sleeves. The purpose of this structural design is to realize the lifting or lowering operation of the upper die relative to the die.

[0012] Preferably, both sides of the upper mold lifting assembly are provided with inserting assemblies, which respectively include an inserting cylinder provided on the upper mold plate and an inserting sheet provided at the output end of the inserting cylinder; the two inserting cylinders are arranged in an inverted eight-shaped pattern, and respectively drive the inserting sheets thereon to insert the two ends of the material strip inward. The purpose of this structural design is to make the two ends of the material strip placed on the lower mold in a natural drooping state, so as to facilitate the weaving operation of the lower mold on it.

[0013] Preferably, the X-axis transfer mechanism comprises an X-axis cylinder and an X-axis slide rail provided on the machine base and an X-axis transfer plate sliding along the X-axis slide rail, and the output end of the X-axis cylinder is pivotally connected to the X-axis transfer plate to drive the X-axis transfer plate to slide back and forth along the X-axis slide rail. This structural design enables the two lower molds to be transferred synchronously to achieve the purpose of staggering the rear melting and pressing position relative to the front melting and pressing position.

[0014] Preferably, the YZ-axis transfer mechanism comprises a Y-axis sliding assembly arranged on the X-axis transfer mechanism and a Z-axis lifting assembly arranged on the Y-axis sliding assembly, and the lower mold is movably arranged on the Z-axis lifting assembly. This structural design enables the lower mold to perform a composite movement in the Y-axis direction and the Z-axis direction, thereby realizing asynchronous insertion and staggered movement of the two lower molds.

[0015] Preferably, the Y-axis sliding assembly includes a Y-axis cylinder and a Y-axis slide rail provided on the X-axis transfer plate and a lower mold mounting frame sliding along the Y-axis slide rail. The output end of the Y-axis cylinder is pivotally connected to the lower mold mounting frame to drive the lower mold mounting frame to slide reciprocatingly along the Y-axis slide rail.

[0016] Preferably, the Z-axis lifting assembly includes a Z-axis slide rail and a second mounting frame provided on the lower mold mounting frame, and a second ball screw passing through and rotating on the second mounting frame; the lower mold slides along the Z-axis slide rail, and the lower mold is provided at the output end of the second ball screw, and the forward and reverse rotation of the second ball screw enables the lower mold to be lifted and lowered relative to the lower mold mounting frame.

[0017] The beneficial effects of the present invention are as follows: compared with the existing plastic honeycomb core preparation tooling, the present invention has the following advantages:

[0018] 1. The two braiding forks are driven by the YZ axis transfer mechanism to realize the asynchronous insertion and staggered movement of the two lower molds, so that the material strips placed on the lower molds one by one are braided, and the melting and pressing protrusions can be correspondingly engaged on the two superimposed material strips on the upper end surface of the fork head through the lifting action of the upper mold lifting assembly to realize the interval dissolution and pressing bonding of the two adjacent braided material strips; and the X axis transfer mechanism synchronously transfers the two lower molds to realize the staggered rear melting and pressing position compared to the front melting and pressing position to form a honeycomb core structure. Compared with the existing manufacturing process of plastic honeycomb core structure, it has the characteristics of simple production process, low mold cost, low labor intensity and high production efficiency.

[0019] 2. The limiting member including the material guide plate and the material spacer is used, wherein the two material guide plates are provided with evenly spaced avoidance grooves extending upward from the bottom, and the fork head on the braiding fork can be inserted into the avoidance groove on the material guide plate at the corresponding position, so as to isolate the several material strips placed on the braiding fork and assist the lower mold in the braiding operation, prevent the crossover of different material strips during the braiding process, and improve the braiding processing quality and processing efficiency. In addition, the two inserting pieces are arranged in an inverted eight-shaped shape, so that the two ends of the material strip placed on the lower mold are in a natural drooping state, which is convenient for the lower mold to braid it. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the front view of the plastic honeycomb core structure;

[0021] Figure 2 A schematic diagram of the three-dimensional structure of the plastic honeycomb core weaving molding mold of the invention;

[0022] Figure 3 This is a schematic diagram of the braiding lower mold structure of the plastic honeycomb core braiding molding mold of the invention;

[0023] Figure 4 This is a schematic diagram of the lower mold structure of the plastic honeycomb core weaving molding mold of the invention;

[0024] Figure 5 for Figure 4A partial enlarged schematic diagram marked with A;

[0025] Figure 6 This is a schematic diagram of the structure of the limiting component of the plastic honeycomb core weaving molding die of the invention;

[0026] Figure 7 for Figure 6 A partial enlarged schematic diagram marked with B;

[0027] Figure 8 This is a schematic diagram of the structure of the melting and pressing upper mold of the plastic honeycomb core weaving molding mold of the invention;

[0028] Fig. 9 This is a structural schematic diagram of another perspective of the melting and pressing upper mold of the plastic honeycomb core weaving molding mold of the invention;

[0029] Fig.10 This is a schematic diagram of the structure of the X-axis transplanting mechanism of the plastic honeycomb core weaving molding mold of the invention;

[0030] Fig.11 This is a schematic diagram of the structure of the YZ axis transplanting mechanism of the plastic honeycomb core weaving molding mold of the invention;

[0031] Fig.12 A simplified flow chart of the weaving working principle of the plastic honeycomb core weaving molding die of the invention;

[0032] Description of the accompanying drawings: 10-base, 11-frame, 20-weaving lower mold, 21-X axis transfer mechanism, 211-X axial cylinder, 212-X axial slide rail, 213-X axis transfer plate, 22-YZ axis transfer mechanism, 221-Y axis sliding assembly, 2211-Y axial cylinder, 2212-Y axial slide rail, 2213-lower mold mounting frame, 222-Z axis lifting assembly, 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-weaving Fork, 2331-fork head, 233a-weaving fork one, 233b-weaving fork two, 30-melting upper mold, 31-upper mold bracket, 32-upper mold lifting assembly, 321-first mounting frame, 322-first ball screw, 323-upper mold plate, 33-upper mold group, 331-middle plate, 332-upper mold base, 333-upper mold, 3331-melting bump, 34-insertion assembly, 341-insertion cylinder, 342-insertion sheet, 40-limiting assembly, 41-limiting bracket, 42-limiting member, 421-guide plate, 4211-avoidance groove, 422-partitioning rack. DETAILED DESCRIPTION

[0033] In order to make the purpose of the invention, the technical scheme and the technical effect of the present invention more clear, the present invention is further described below in conjunction with specific implementation methods. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0034] Reference Figure 2 As shown, a plastic honeycomb core weaving forming mold includes a machine base 10 and a frame 11 arranged on the machine base; a weaving lower mold 20 is arranged on the machine base 10, and a melting and pressing upper mold 30 arranged to match the weaving lower mold is arranged above the weaving lower mold, and the melting and pressing upper mold 30 is arranged on the frame 11. In the specific practice, in order to intuitively observe the operation of the weaving forming mold and consider safety, an acrylic box with an opening and closing door structure can be added to the frame 11. The weaving material targeted by the present invention is a plastic material of a material strip structure. Specifically, the weaving lower mold 20 can adjust its position in a three-dimensional space, and the melting and pressing upper mold 30 can only adjust its position in the vertical direction. The weaving lower mold 20 is used to weave the material strips placed thereon one by one, and the local bonding operation of the two adjacent material strips after weaving is achieved by the interval dissolution and pressing of the melting and pressing upper mold 30.

[0035] Reference Figure 3 As shown, the braiding lower die 20 includes an X-axis transfer mechanism 21 arranged on the machine base 10, two YZ-axis transfer mechanisms 22 symmetrically arranged on the X-axis transfer mechanism, and lower dies 23 respectively arranged on the two YZ-axis transfer mechanisms. In the present invention, the two lower dies 23 independently realize asynchronous interleaving and staggered motion in the Y-axis and Z-axis directions through the transfer action of the YZ-axis transfer mechanism 22 carrying them, so as to achieve the braiding operation of the two material strips stacked one by one, and through the X-axis transfer mechanism 21, the two material strips are synchronously reciprocated horizontally after the interval melting and pressing to achieve the misalignment of the material strip melting and pressing positions, so as to realize the braiding of the honeycomb core structure.

[0036] Reference Figure 4 As shown, the lower mold 23 includes a lower mold base 231 provided on the YZ-axis transfer mechanism 22, a lower mold mounting plate 232 provided on the lower mold base, and the braiding fork 233 movably provided on the lower mold mounting plate. In this embodiment, the two braiding forks 233 are arranged opposite to each other. In order to facilitate the adjustment of the position between the two braiding forks 233, in specific practice, a linear hole can be opened in the lower mold mounting plate 232, and a fastener can be passed through the linear hole to realize that the braiding fork 233 is adjustable and fixedly installed on the lower mold mounting plate 232.

[0037] Reference Figure 3 and Figure 5As shown, both lower molds 23 include braiding forks 233. Specifically, the front ends of both braiding forks 233 are provided with evenly spaced fork heads 2331, and the fork head 2331 of one braiding fork 233 can be accommodated in the gap formed by two adjacent fork heads 2331 on the other braiding fork 233; in the specific production process, in order to avoid the fork head 2331 being affected by heat conduction during melting and pressing and affecting the material strip, the braiding fork 233 is generally made of heat-insulating material. In the present invention, the two YZ-axis transfer mechanisms 22 respectively drive the weaving forks 233 placed thereon to move, so that the two weaving forks 233 perform asynchronous insertion and staggered movements to realize the weaving operation of the material strips placed one by one on the weaving forks 233, and at the same time, the melting and pressing upper mold 30 performs intermittent melting and pressing on the two adjacent woven material strips, and the X-axis transfer mechanism 21 synchronously transfers the two weaving forks to realize the staggered rear melting and pressing position compared to the front melting and pressing position to form a honeycomb core structure; compared with the existing manufacturing process of plastic honeycomb core structure, it has the characteristics of simple production process, low mold cost, low labor intensity and high production efficiency.

[0038] Reference Figure 6 and Figure 7 As shown, the X-axis transfer mechanism 21 is provided with a limit assembly 40, and the limit assembly 40 includes a limit bracket 41 provided on the X-axis transfer mechanism 21 and a limit member 42 movably provided on the limit bracket, and the limit member 42 is mounted above the lower mold 23; wherein, in order to facilitate the adjustment of the appropriate spacing between the limit member 42 and the lower mold 23 according to different production needs, the spacing between the limit member 42 and the lower mold 23 is adjusted by providing a strip hole on the limit bracket 41. In the present invention, the limit member 42 includes a symmetrically arranged material guide plate 421 and at least one material spacer 422 evenly arranged between the two material guide plates, and the two material guide plates 421 are provided with evenly spaced avoidance grooves 4211 extending upward from the bottom end, and this structural design limits the material strip placed on the lower mold 23, and plays an auxiliary role in facilitating the material strip weaving operation. In the present embodiment, the number of the material separator 422 is one, and the material separator 422 divides the two material guide plates 421 into two groups, which is convenient for placing the material tape, so that the weaving molding mold can adopt a one-out-two production mode; in addition, the fork head 2331 on the weaving fork 233 can be inserted into the avoidance groove 4211 on the material guide plate 421 at the corresponding position, wherein the number of the avoidance groove 4211 is one more than the fork head 2331, and its purpose is to realize the structural requirement that the melting and pressing position can be displaced.

[0039] Reference Figure 8 and Fig. 9As shown, the melting and pressing upper mold 30 includes an upper mold support 31 arranged on the frame 11, an upper mold lifting component 32 arranged on the upper mold support, and an upper mold group 33 arranged on the upper mold lifting component; the upper mold group 33 includes an intermediate plate 331 arranged on the upper mold lifting component 32, an upper mold base 332 arranged on the intermediate plate, and an upper mold 333 arranged at the bottom end of the upper mold base. In the present invention, at least two rows of melting and pressing protrusions 3331 are arranged on the upper mold 333 and are evenly spaced, and the specific number of rows is consistent with the number of groups divided by the material guide plate 421 by the material spacer 422. In this embodiment, the number of the melting and pressing protrusions 3331 is two rows, and the melting and pressing protrusions 3331 can be correspondingly engaged with the upper end surface of the fork head 2331 through the lifting action of the upper mold lifting component 32, so as to realize the hot melting and pressing bonding operation of the two material strip areas overlapped on the upper end surface of the fork head 2331.

[0040] Furthermore, the upper mold lifting assembly 32 includes a first mounting frame 321 arranged on the upper mold bracket 31, a first ball screw 322 that passes through the upper mold bracket 31 and is rotatably arranged on the first mounting frame 321, and an upper mold plate 323 arranged at the output end of the first ball screw, and the intermediate plate 331 is fixed on the upper mold plate 323. In this embodiment, the first ball screw 322 realizes forward and reverse rotation under the action of the motor, so that the upper mold plate 323 performs lifting and lowering movements, and realizes the lifting or lowering operation of the upper mold 333 relative to the lower mold 23 to match the hot melt pressing and bonding operation after the material strip is woven. In addition, in order to achieve high accuracy of the melting and pressing protrusion 3331 acting on the position of the weaving fork 233 and improve the stability of the honeycomb core structure, the consistency of the melting and pressing position is ensured by respectively providing matching guide columns or guide sleeves on the upper mold bracket 31 and the upper mold plate 323.

[0041] Furthermore, both sides of the upper mold lifting assembly 32 are provided with an insertion assembly 34, which includes an insertion cylinder 341 provided on the upper mold plate 323 and an insertion sheet 342 provided at the output end of the insertion cylinder. During the production process, the two ends of the material belt are placed on it due to the obstruction of the limit bracket 41, so that during the downward movement of the weaving fork 233, the limit bracket 41 holds up the material belt and it cannot move downward with the weaving fork 233 to affect the weaving operation. In this embodiment, the two insertion cylinders 341 are arranged in an inverted eight shape, and respectively drive the insertion sheets 342 thereon to insert the two ends of the material belt inward, so that the two ends of the material belt placed on the lower mold 23 are in a natural drooping state, which is convenient for the weaving operation of the lower mold 23.

[0042] Reference Fig.10As shown, the X-axis transfer mechanism 21 includes an X-axis cylinder 211 and an X-axis slide rail 212 arranged on the machine base 10 and an X-axis transfer plate 213 sliding along the X-axis slide rail. The output end of the X-axis cylinder 211 is pivotally connected to the X-axis transfer plate 213, driving the X-axis transfer plate 213 to slide reciprocatingly along the X-axis slide rail 212, so that the two weaving forks 233 are synchronously transferred to achieve the purpose of staggering the rear melting position compared to the front melting position.

[0043] Reference Fig.11 As shown, the YZ-axis transfer mechanism 22 includes a Y-axis sliding component 221 arranged on the X-axis transfer mechanism 21 and a Z-axis lifting component 222 arranged on the Y-axis sliding component. The lower mold 23 is movably arranged on the Z-axis lifting component 222, so that the lower mold 23 can perform a compound movement in the Y-axis direction and the Z-axis direction, thereby realizing asynchronous insertion and staggered movement of the two lower molds 23.

[0044] Furthermore, the Y-axis sliding assembly 221 includes a Y-axial cylinder 2211 and a Y-axial slide rail 2212 arranged on the X-axis transfer plate 213 and a lower mold mounting frame 2213 sliding along the Y-axial slide rail. The output end of the Y-axial cylinder 2211 is pivotally connected to the lower mold mounting frame 2213, driving the lower mold mounting frame 2213 to slide back and forth along the Y-axial slide rail 2212, thereby realizing the mutual insertion or separation of the fork heads 2331 on the two weaving forks 233.

[0045] Furthermore, the Z-axis lifting assembly 222 includes a Z-axis slide rail 2221 and a second mounting frame 2222 provided on the lower mold mounting frame 2213, and a second ball screw 2223 passing through and rotating on the second mounting frame; the lower mold 23 slides along the Z-axis slide rail 2221, and the lower mold 23 is provided at the output end of the second ball screw 2223, and the forward and reverse rotation of the second ball screw 2223 enables the lower mold 23 to be lifted and lowered relative to the lower mold mounting frame 2213, thereby realizing the up and down staggered movement of the fork heads 2331 on the two weaving forks 233.

[0046] The working principle of the present invention is as follows: Fig.12 The specific analysis is as follows:

[0047] STEP 1: Initially, the melting and pressing upper mold 30 and the braiding lower mold 20 are in a separated state, the braiding fork 1 233a is above the braiding fork 233b and is in a staggered state, and the straight-line material strip 1 is placed on the upper end of the braiding fork 1 233a;

[0048] STEP 2: The braiding fork 1 233a descends along the Z axis, while the braiding fork 233b retreats along the Y axis, rises along the Z axis, and then moves forward along the Y axis. At this time, the braiding fork 233b is above the braiding fork 1 233a and is in a staggered state, and the straight-line material strip 1 is between the braiding fork 233b and the braiding fork 1 233a;

[0049] STEP3: The braiding fork 1 233a rises along the Z axis, so that the fork head of the braiding fork 233b and the braiding fork 1 233a are mutually inserted, and at this time, the straight-line material belt 1 is in a wavy structure; the straight-line material belt 2 is placed on the braiding fork 1 233a; the material belt 1 and the material belt 2 are partially in contact and overlapped, and then the melting and pressing protrusion 3331 moves downward along the Z axis, and the area where the material belt 1 and the material belt 2 are partially in contact and overlapped is melted and pressed and bonded by the high-frequency principle;

[0050] STEP4: Through the synchronous action of the two Y-axis sliding components 221, the braiding fork 1 233a, the braiding fork 2 233b and the melt-pressed material belts 1 and 2 in the STEP3 state are synchronously completely separated from the limiter 42, and then the X-axis transfer mechanism 21 is used to move the entire braiding fork 233a to the right by one position. Since the position of the melt-pressed protrusion 3331 remains unchanged, the position where the melt-pressed protrusion 3331 is melted on the material belt 2 is misaligned. Through the synchronous action of the two Y-axis sliding components 221 in opposite movements, the braiding fork 1 233a, the braiding fork 2 233b and the melt-pressed material belts 1 and 2 are synchronously and correspondingly entered into the avoidance groove 4211 of the limiter 42. At this time, the braiding fork 2 233b is above the braiding fork 1 233a and is in a staggered state.

[0051] STEP 5: Place the material strip 3 in a straight state on the braiding fork 233 b , so that the material strip 3 in a straight state overlaps a local area of ​​the material strip 2 in a wavy structure state;

[0052] STEP 6: The melting and pressing protrusion 3331 moves downward along the Z axis, and melts and presses the areas where the material strips 3 and 2 are partially in contact and overlapped with each other through the high frequency principle;

[0053] STEP 7: The braiding fork 1 233a retreats along the Y axis, rises along the Z axis, and then moves forward along the Y axis to be inserted into the fork head of the braiding fork 2 233b;

[0054] STEP8: The second weaving fork 233b is lowered along the Z axis, so that the straight material strip three presents a wavy structure; subsequently, the straight material strip four is placed on the first weaving fork 233a, and the process from STEP1 to STEP8 is repeated, thereby forming a honeycomb core structure.

[0055] The above content is a further detailed description of the present invention in combination with specific preferred implementation methods, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, without departing from the concept of the present invention, its architecture can be flexible and can derive a series of products. Just making a few simple deductions or substitutions should be regarded as belonging to the scope of patent protection of the present invention determined by the submitted claims.

Claims

1. A plastic honeycomb core weaving forming mold, comprising a machine base and a frame arranged on the machine base; a weaving lower mold is arranged on the machine base, a melting and pressing upper mold matched with the weaving lower mold is arranged above the weaving lower mold, and the melting and pressing upper mold is arranged on the frame; characterized in that: The braiding lower mold includes an X-axis transfer mechanism arranged on the machine base, two YZ-axis transfer mechanisms symmetrically arranged on the X-axis transfer mechanism and lower molds respectively arranged on the two YZ-axis transfer mechanisms; the two lower molds both include braiding forks, and the front ends of the two braiding forks are both provided with evenly spaced fork heads, and the fork head of one of the braiding forks can be accommodated in the gap formed by two adjacent fork heads on the other braiding fork; the two YZ-axis transfer mechanisms respectively drive the braiding forks placed thereon to move, so that the two braiding forks perform asynchronous insertion and staggered motion to realize the weaving operation of the material strips placed one by one on the lower mold, and at the same time, the melting and pressing upper mold performs interval melting and pressing on the two adjacent braided material strips, and the X-axis transfer mechanism synchronously transfers the two lower molds to realize the staggered position of the rear melting and pressing position compared with the front melting and pressing position to form a honeycomb core structure.

2. The plastic honeycomb core weaving forming mold according to claim 1, characterized in that: The lower mold comprises a lower mold base arranged on the YZ-axis transfer mechanism, a lower mold mounting plate arranged on the lower mold base, and the braiding fork movably arranged on the lower mold mounting plate.

3. The plastic honeycomb core weaving forming mold according to claim 1 or 2, characterized in that: The X-axis transfer mechanism is provided with a limit assembly, which includes a limit bracket arranged on the X-axis transfer mechanism and a limit member movably arranged on the limit bracket, and the limit member is mounted above the lower mold; the limit member includes symmetrically arranged material guide plates and at least one material spacing frame evenly arranged between the two material guide plates, and the two material guide plates are provided with evenly spaced avoidance grooves extending upward from the bottom ends, and the fork head on the weaving fork can be inserted into the avoidance groove on the material guide plate at the corresponding position.

4. The plastic honeycomb core weaving forming mold according to claim 1, characterized in that: The melting and pressing upper mold includes an upper mold support arranged on the frame, an upper mold lifting component arranged on the upper mold support and an upper mold group arranged on the upper mold lifting component; the upper mold group includes an intermediate plate arranged on the upper mold lifting component, an upper mold base arranged on the intermediate plate and an upper mold arranged at the bottom end of the upper mold base, and the upper mold is provided with at least two rows of melting and pressing protrusions that are evenly spaced; the melting and pressing protrusions can be correspondingly engaged with the upper end surface of the fork head through the lifting action of the upper mold lifting component.

5. The plastic honeycomb core weaving forming mold according to claim 4, characterized in that: The upper mold lifting assembly includes a first mounting frame arranged on the upper mold bracket, a first ball screw that passes through the upper mold bracket and is rotatably arranged on the first mounting frame, and an upper mold plate arranged at the output end of the first ball screw, and the intermediate plate is fixed on the upper mold plate; the upper mold bracket and the upper mold plate are respectively provided with matching guide columns or guide sleeves.

6. The plastic honeycomb core weaving forming mold according to claim 5, characterized in that: Insertion assemblies are respectively provided on both sides of the upper mold lifting assembly, and the insertion assemblies respectively include an insertion cylinder arranged on the upper mold plate and an insertion sheet arranged at the output end of the insertion cylinder; the two insertion cylinders are arranged in an inverted eight shape, and respectively drive the insertion sheets thereon to insert the two ends of the material strip inward.

7. The plastic honeycomb core weaving forming mold according to claim 1, characterized in that: The X-axis transfer mechanism includes an X-axis cylinder and an X-axis slide rail arranged on the machine base and an X-axis transfer plate sliding along the X-axis slide rail. The output end of the X-axis cylinder is pivotally connected to the X-axis transfer plate to drive the X-axis transfer plate to slide back and forth along the X-axis slide rail.

8. The plastic honeycomb core weaving forming mold according to claim 7, characterized in that: The YZ-axis transfer mechanism comprises a Y-axis sliding assembly arranged on the X-axis transfer mechanism and a Z-axis lifting assembly arranged on the Y-axis sliding assembly, and the lower mold is movably arranged on the Z-axis lifting assembly; The Y-axis sliding assembly includes a Y-axis cylinder and a Y-axis slide rail arranged on the X-axis transfer plate and a lower mold mounting frame sliding along the Y-axis slide rail. The output end of the Y-axis cylinder is pivotally connected to the lower mold mounting frame to drive the lower mold mounting frame to slide reciprocatingly along the Y-axis slide rail.

9. The plastic honeycomb core weaving forming mold according to claim 8, characterized in that: The Z-axis lifting assembly includes a Z-axis slide rail and a second mounting frame arranged on the lower mold mounting frame, and a second ball screw passing through and rotating on the second mounting frame; the lower mold slides along the Z-axis slide rail, and the lower mold is arranged at the output end of the second ball screw, and the forward and reverse rotation of the second ball screw enables the lower mold to be lifted and lowered relative to the lower mold mounting frame.

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