An automatic separation type pole hole glass steel winding mold and process method

Abstract

The application discloses an automatic separation type pole hole glass steel winding mold and a process method, belongs to the molding technical field of a tank type filter, and comprises the following components: a fixed shaft assembly, which is drivingly connected with a fiber winding machine tool; a mold main body assembly, which comprises a mold head, a valve one and a valve two; a guide disc, which is connected between the fixed shaft assembly through a guide disc bearing; a plurality of sliding channels are uniformly arranged on the guide disc in a radial direction; a plurality of first guide holes and second guide holes that are sequentially and alternately arranged are arranged on the guide disc; the first guide holes and the second guide holes have different movement tracks; a connecting rod, a first end of the connecting rod is connected with the first guide hole or the second guide hole, and a second end of the connecting rod is fixedly connected with the valve one or the valve two; a transmission shaft, which is connected with the fixed shaft assembly; a locking mechanism, which is used for circumferential locking between the transmission shaft and the fixed shaft assembly; when the locking mechanism is separated from the fixed shaft assembly, the transmission shaft can drive the guide disc to synchronously rotate. The application solves the problem of accidental loosening and separation of mold petals in the winding rotation process.

Description

Technical Field

[0001] This invention belongs to the field of canister filter molding technology, and more specifically relates to an automatic separation type fiberglass winding mold with polar holes and its process method. Background Technology

[0002] Composite fiber-wound canister filters are widely used in water treatment, chemical fluid filtration and other applications. These products are large canister filter components with integrated end caps at both ends, and are integrally molded by fiber winding. After molding, they need to be cut along the predetermined cutting position to separate them into two independent parts: the filter body and the end caps.

[0003] The existing traditional polar hole winding dies mainly have the following problems: 1. Conventional synchronous shrink-wound electrode hole winding molds work by shrinking the mold directly after curing and pulling it out entirely from the electrode hole position of the product. However, for large canister filters with end caps, the two ends of the product are sealed by the end caps, and there is no large-sized extraction channel. After curing, the mold cannot be directly pulled out entirely from the end cap electrode hole. If forced demolding is attempted, the mold will interfere with the sealed end cap structure, which can easily cause cracking and damage to the end cap and electrode hole, rendering the product unusable.

[0004] 2. Existing conventional process: After the winding and curing, the whole product that has not been demolded, together with the internal mold, is cut along the predetermined cutting position to separate the main body of the product and the end cap. Before cutting, the mold segments are completely attached to the inner wall of the product. During the cutting process, the cutting tool will directly cut and squeeze the mold segments, damaging the working surface of the mold segments. At the same time, the cutting debris gets stuck in the gap of the mold segments, causing the mold segments to get stuck. It is impossible to complete the shrinkage separation in the future, and it is difficult to remove the mold from the inside of the product.

[0005] 3. Some manual splitting molds cannot achieve pre-separation of the mold and the product before cutting; after cutting, it is necessary to manually enter the inner cavity of the tank to remove a large number of bolts and pins. The working space inside the large tank filter is small, and there are many disassembly and assembly procedures, high labor intensity and high safety risks; cutting debris enters the fastener mating position, which can easily cause bolt corrosion and seizing, and the mold disassembly and maintenance costs are high.

[0006] 4. Axial push-pull type connecting rod shrinkage molds on the market rely on axial sliding to achieve mold petal closing. Under the winding and rotation operation, the drive shaft is prone to axial movement due to fiber tension and centrifugal force, which may cause the mold petals to unexpectedly shrink and loosen inward, resulting in product roundness exceeding the tolerance and winding molding failure. Relying solely on springs for axial limiting is not reliable under high-speed rotation and high fiber tension conditions.

[0007] 5. Ordinary synchronous shrinking molds can only achieve synchronous radial shrinkage of all mold segments without a pre-separation process; before cutting, the mold is completely attached to the inner wall of the product, and the product is easily deformed by the pressure of the cutting tool during cutting, resulting in poor flatness of the cutting edge, and the dimensional accuracy of the main body and end caps after division is difficult to guarantee; at the same time, it does not have the function of layered sequential return, and the mold segments inside large tanks are prone to local jamming, and the demolding process is prone to scratching the inner wall of the tank, reducing the yield of large tank filters.

[0008] In summary, existing polar hole winding molds lack a process structure suitable for large canister filters with end caps. Under winding and rotation conditions, the mold petals are prone to accidental loosening, making it impossible to pre-separate the mold from the inner wall of the product before the cutting process. Cutting easily damages both the mold and the product, and demolding the inner cavity of the mold after cutting is difficult, which restricts the mass production of large composite material canister filters. Summary of the Invention

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An automatic separation type fiberglass winding mold with polar holes, comprising: A fixed shaft assembly, which is driven and connected to the fiber winding machine tool; The main body assembly of the mold includes a mold head, valve one, and valve two; the number of valve one and valve two is the same, and they are alternately arranged to form a cylindrical structure; The guide disk is connected to the fixed shaft assembly via a guide disk bearing; the guide disk has multiple sliding channels evenly arranged radially; the guide disk has multiple first guide holes and second guide holes arranged alternately in sequence; the first guide holes and the second guide holes have different movement trajectories; The number of connecting rods is the same as the number of valve one and valve two; each connecting rod corresponds to one valve one or valve two, the first end of the connecting rod is inserted into the sliding channel and connected to the first guide hole or the second guide hole through a pin, and the second end of the connecting rod is fixedly connected to valve one or valve two; A drive shaft is located in the hollow position of the fixed shaft assembly and is connected to the fixed shaft assembly via a drive shaft bearing; the drive shaft is drivenly connected to the guide disc. The locking mechanism is used to circumferentially lock the drive shaft and the fixed shaft assembly during the overall fiber winding operation of the end-capped canister filter to achieve synchronous rotation. During the pre-separation process before cutting the end-capped canister filter, the locking mechanism disengages from the drive shaft or the fixed shaft assembly. The drive shaft can drive the guide disc to rotate synchronously, which in turn drives the connecting rod to drive the valve one or the valve two to retract and disengage from the end-capped canister filter.

[0010] Furthermore, the fixed shaft assembly includes: Two fixed half-shafts are arranged symmetrically. At least one connecting shaft, wherein at least one of the connecting shafts is arranged sequentially and disposed between the two fixed half shafts; The positioning block is used to fix the fixed half shaft to the connecting shaft and to two adjacent connecting shafts. Multiple guide wheels are provided, with at least two guide wheels forming a group. Each sliding channel is symmetrically provided with a group of guide wheels that are rotatably connected to the guide disc. The first end of the connecting rod is inserted into the gap between each group of guide wheels and connected to the first guide hole or the second guide hole via a pin.

[0011] Furthermore, the guide disc has a spline machined in its center hole, and the spline is engaged with the drive shaft for driving connection.

[0012] Furthermore, the two sides of valve one and valve two have different angles, forming a layered relationship. When valve one and valve two separate from the sealed canister filter, the valve one located in the first layer contracts first. When they reach a certain distance, the valve one located in the second layer contracts again, completely separating the valve from the product. Similarly, when valve one and valve two return to their original positions, the second layer moves back to its original position first, and then the first layer moves back to its original position, firmly locking the valve in the second layer in place.

[0013] Furthermore, the locking mechanism includes: A positioning sleeve, wherein the positioning sleeve is connected to the drive shaft via a spline; Fastening nuts are installed at both ends of the drive shaft to press against the positioning sleeves; both the positioning sleeves and the fixed shaft assembly are machined with grooves for locking between the positioning sleeves and the fixed shaft assembly; A return spring is installed between the positioning sleeve and the drive shaft bearing.

[0014] An automated separation type fiberglass winding process is a method for producing fiberglass reinforced plastic (FRP) using any of the above-described automated separation type FRP winding molds. The process includes the following steps: S10, Assembly Locking State: The fastening nut presses the positioning sleeve, and the slot of the positioning sleeve and the slot of the fixed half shaft are engaged with each other. The positioning sleeve and the drive shaft are in a circumferential locking state. At this time, the drive shaft cannot rotate, and the first and second valves of the mold remain open and assembled into a complete cylindrical forming surface. The mold is clamped on the fiber winding machine, and the winding machine drives the entire set of molds to rotate to carry out the overall fiber winding operation of the can-type filter with end caps. S20. Curing treatment: After the winding is completed, the product is sent to a curing oven to complete the overall curing of the composite material and obtain an integrated uncut canister filter product with end cap and cylinder. S30. Pre-separation process before cutting: After curing, the product remains in an uncut state. Loosen the fastening nut, and the positioning sleeve separates from the groove of the fixed half shaft under the push of the return spring, disengaging from the locked state. Insert the pry bar into the pry bar operation hole of the positioning sleeve, and turn the pry bar to rotate the positioning sleeve, which in turn drives the drive shaft to rotate through the spline transmission. The drive shaft drives the guide plate to rotate synchronously. The first guide hole first drives the corresponding connecting rod, causing valve one to retract radially towards the axis, and valve one separates from the inner wall of the product, forming a local annular gap. The drive shaft continues to rotate in the same direction, and the second guide hole drives the corresponding connecting rod, causing valve two to retract inward. At this point, all mold valve one and mold valve two are completely separated from the inner wall of the canister filter product, forming a full-circle annular clearance gap between the mold and the product. S40. Cutting and segmentation process: Keep the mold in a pre-separated and retracted state, with a gap between the mold and the inner wall of the tank. The cutter cuts the integrated product along the preset cutting position, dividing the integrated product into two independent parts: the filter product body and the end cap. Since the mold has been pre-separated from the product, the cutting cutter will not contact the mold segments, and cutting debris is not easy to enter the gaps between the mold segments. S50, Mold detachment and removal: After the product is cut and separated, an open operating port is formed. The entire mold is directly pulled out from the inner cavity of the product through the open port formed by the cutting. S60, Reset and Lock for Next Round of Production: Reverse rotation of the positioning sleeve drives the drive shaft and guide plate to rotate in the opposite direction. The guide hole drives the connecting rod to drive mold lobe one and mold lobe two to open outward synchronously, restoring the standard cylindrical winding working surface. Tighten the fastening nut to press the positioning sleeve, and the positioning sleeve groove is re-embedded into the fixed half shaft groove, realizing the circumferential locking of the positioning sleeve and drive shaft, preventing the mold lobe from loosening in the subsequent winding process, and preparing for the next winding and forming.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention solves the problem of accidental loosening and separation of the mold petals during the winding and rotation process by setting a slot-spring locking mechanism, namely, a ferrule slot, a fixed half-shaft slot, a spline drive, a return spring, and a fastening nut working together to lock the structure. The fixed shaft assembly remains stationary, and the mold is driven by the winding machine to rotate as a whole for winding; the ferrule slot and the fixed half-shaft slot are engaged to achieve circumferential locking of the drive shaft, preventing accidental rotation of the drive shaft during the winding operation, eliminating the possibility of the mold petals loosening or accidentally closing due to fiber tension and centrifugal force, and ensuring the roundness and wall thickness accuracy of the formed product.

[0016] 2. This invention features two types of guide holes with different trajectories on the guide disc and a layered connecting rod-mold flap mechanism. This allows for pre-separation of the mold from the product while it remains intact and uncut, solving the industry problem of directly demolding tanks with end caps. For large tank filters with sealed end caps, the mold cannot be directly pulled out from the electrode holes after curing. Before cutting, this mold releases the lock and rotates the ferrule, driving the drive shaft-guide disc to rotate. The two types of guide holes with different trajectories achieve layered pre-shrinking of the mold flaps, separating the mold from the inner wall of the product to form a gap before cutting.

[0017] 3. The pre-separation structure and process matching before the cutting process can protect the mold body and avoid cutting damage to the working surface of the mold segments. In traditional solutions, the mold is in close contact with the inner wall of the tank during cutting, and the cutting tool will directly cut and bump the mold. In this solution, after pre-separation, an annular gap is left between the mold and the product, so the cutting tool does not contact the mold, avoiding cutting damage to the working surface of the mold segments. At the same time, cutting debris is less likely to get stuck in the joint gap of the mold segments, reducing mold segment jamming failures and extending the service life of the mold.

[0018] 4. After pre-separation, the mold and the product are no longer rigidly attached, which improves the cutting quality of the canister filter. Before cutting, the mold has already detached from the inner wall of the product, and the cylinder is no longer bound by the rigid support of the mold, eliminating the compressive stress of the mold on the cylinder; during the cutting process, the cylinder is subjected to less deformation, the cut is smooth, and the dimensional accuracy and end face flatness of the separated filter product body and end cap are guaranteed.

[0019] 5. Through two different guide holes on the guide disc and a layered linkage mold segment transmission structure, sequential layered retraction is achieved, adapting to large tanks and reducing the risk of scratching the inner wall during demolding. The guide disc is equipped with two different guide holes; the rotation of the guide disc drives the mold segments to retract sequentially in layers. The first layer of mold segments preferentially retracts to release the gap before the remaining mold segments retract. Compared to simultaneous contraction of all mold segments, this significantly reduces the risk of mold jamming and scratches on the inner wall of large tanks, improving the yield of finished large tank filters.

[0020] 6. The external operating structure of the spline-driven ferrule eliminates manual operations inside the tank, improving production efficiency and eliminating safety hazards. The mold segments can be closed and opened by operating the ferrule with an external pry bar. After cutting, the entire mold can be directly removed from the open cutting port without the need for operators to enter the large tank to remove bolts and pins; this avoids the risks of working in confined spaces, shortens production time, and is suitable for automated mass production. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0022] Figure 1 A schematic diagram of the overall structure of the automatic separation type fiberglass winding mold with polar holes provided by the present invention; Figure 2 This is a schematic diagram of the assembly of the automatic separation type fiberglass winding mold with polar holes provided by the present invention; Figure 3 A cross-sectional view of the automatic separation type fiberglass winding mold with polar holes provided by the present invention; Figure 4 This is a structural schematic diagram of the fixed shaft assembly; Figure 5 Left sectional view of the fixed axis assembly; Figure 6 A schematic diagram of a fixed half-shaft; Figure 7 This is section view AA in section 6; Figure 8 This is a front view of the connecting shaft; Figure 9 This is the left sectional view of the connecting axis; Figure 10 This is a structural schematic diagram of the main components of the mold; Figure 11 This is a left sectional view of the main component of the mold. Figure 12 This is a schematic diagram before mold separation; Figure 13 This is a schematic diagram after the mold has been separated.

[0023] In the diagram, 1. Fixed shaft assembly; 1.1 Fixed half shaft; 1.2 Connecting shaft; 1.3 Positioning block; 1.4 Guide wheel; 2. Mold main body assembly; 2.1 Mold head; 2.2 Valve one; 2.3 Valve two; 3. Guide plate; 4. Connecting rod; 5. Drive shaft; 6. Positioning sleeve; 7. Fastening nut; 8. Return spring; 9 Moving shaft bearing; 10. Guide plate bearing; 11. First guide hole; 12. Second guide hole. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Example 1

[0026] refer to Figure 1 - Figure 13 An automatic separation type fiberglass winding mold with polar holes, comprising: Fixed shaft assembly 1, which is connected to the drive of the fiber winding machine tool; The main mold component 2 includes a mold head 2.1, valve one 2.2, and valve two 2.3; the number of valve one 2.2 and valve two 2.3 are the same, and they are alternately arranged to form a cylindrical structure; The guide disk 3 is connected to the fixed shaft assembly 1 via a guide disk bearing 10; the guide disk 3 is radially and evenly provided with multiple sliding channels; the guide disk 3 is provided with multiple first guide holes 11 and second guide holes 12 arranged alternately in sequence; the first guide holes 11 and the second guide holes 12 have different movement trajectories; The number of connecting rods 4 is the same as the number of valves 2.2 and 2.3; each connecting rod 4 corresponds to one valve 2.2 or valve 2.3. The first end of the connecting rod 4 is inserted into the sliding channel and connected to the first guide hole 11 or the second guide hole 12 by a pin. The second end of the connecting rod 4 is fixedly connected to valve 2.2 or valve 2.3 by bolts or other means. Drive shaft 5 is located in the hollow position of fixed shaft assembly 1 and is connected to fixed shaft assembly 1 through drive shaft bearing 9; drive shaft 5 is drivenly connected to guide disk 3; The locking mechanism is used to lock the drive shaft 5 and the fixed shaft assembly 1 circumferentially when the overall fiber winding operation of the end-capped can filter is carried out, so as to achieve synchronous rotation. When the pre-separation process before cutting the end-capped can filter is carried out, the locking mechanism disengages from the drive shaft 5 or the fixed shaft assembly 1. The drive shaft 5 can drive the guide disk 3 to rotate synchronously, which in turn drives the connecting rod 4 to drive the valve 1 2.2 or valve 2 2.3 to retract and disengage from the end-capped can filter.

[0027] The fixed shaft assembly 1 includes: There are two fixed half-shafts 1.1, which are symmetrically arranged. At least one connecting shaft 1.2 is arranged sequentially and positioned between two fixed half-shafts 1.1; The positioning block 1.3 is used to fix the half shaft 1.1 and the connecting shaft 1.2, as well as the two adjacent connecting shafts 1.2. Multiple guide wheels 1.4 are provided, with at least two guide wheels 1.4 forming a group. Each sliding channel is symmetrically provided with a group of guide wheels 1.4 that are rotatably connected to the guide disc 3. The first end of the connecting rod 4 is inserted into the gap between the middle of each group of guide wheels 1.4 and connected to the first guide hole 11 or the second guide hole 12 via a pin. The guide wheels 1.4 are used to reduce friction when the connecting rod 4 moves back and forth. The number and length of the connecting shafts 1.2 are determined by the length of the product.

[0028] Specifically, the guide disk 3 is equipped with two different trajectory guide holes. The rotation of the guide disk 3 drives the mold petals to retract layer by layer. The first layer of mold petals first retracts to release the gap, and then the remaining mold petals are retracted. Compared with the synchronous contraction of all mold petals, this greatly reduces the risk of mold jamming in the inner cavity of large tanks and scratches on the inner wall of the tank, and improves the yield of large tank filters.

[0029] In this embodiment, there are two connecting shafts 1.2; there are four guide wheels 1.4 in each group, and the four guide wheels 1.4 are symmetrically arranged on both sides of the sliding channel. The guide disk 3 is provided with six sliding channels, and the six sliding channels correspond to six connecting rods 4. There are three valves 1 2.2 and three valves 2.3.

[0030] In this embodiment, the center hole of the guide disc 3 is machined with a spline, which is connected to the drive shaft 5 for driving.

[0031] In this embodiment, the two sides of valve 2.2 and valve 2.3 have different angles, forming a layered relationship. When valve 2.2 and valve 2.3 separate from the sealed canister filter, valve 2.2 on the first layer contracts first, and when it reaches a certain distance, valve 2.3 on the second layer contracts again, so that the valve is completely separated from the product. Similarly, when valve 2.2 and valve 2.3 return to their original positions, valve 2.3 on the second layer moves back to its original position first, and then valve 2.2 on the first layer moves back to its original position, and can firmly hold valve 2.3 on the second layer in place.

[0032] In this embodiment, the locking mechanism includes: Positioning sleeve 6 is connected to drive shaft 5 via splines; Fastening nuts 7 are installed at both ends of the drive shaft 5 to press the positioning sleeves 6; both the positioning sleeves 6 and the fixed shaft assembly 1 are machined with grooves for locking between the positioning sleeves 6 and the fixed shaft assembly 1. Return spring 8 is installed between positioning sleeve 6 and drive shaft bearing 9.

[0033] Specifically, when the assembly is locked: the fastening nut (7) presses the positioning sleeve (6), the slot of the positioning sleeve (6) and the slot of the fixed half shaft (1.1) are engaged with each other, and the positioning sleeve (7) and the transmission shaft (5) are in a circumferentially locked state; at this time, the transmission shaft cannot rotate, the mold flap remains open and in place, and is combined into a complete cylindrical forming surface; the mold is clamped on the fiber winding machine, and the winding machine drives the whole set of molds to rotate, and the overall fiber winding operation of the can-type filter with end cap is carried out.

[0034] After curing, the product remains in an uncut state. Loosen the fastening nut 7, and the positioning sleeve 6 separates from the groove of the fixed half shaft 1.1 under the push of the return spring 8, thus disengaging from the locked state. Insert the pry bar into the pry bar operation hole of the positioning sleeve 6, and turn the pry bar to rotate the positioning sleeve 6, which in turn drives the drive shaft 5 to rotate through the spline transmission. The drive shaft 5 drives the guide plate 3 to rotate synchronously. The first guide hole 11 first drives the corresponding connecting rod 4, causing the first valve 2.2 to retract radially towards the axis, and the first valve 2.2 separates from the inner wall of the product, forming a local annular gap. The drive shaft 5 continues to rotate in the same direction, and the second guide hole 12 drives the corresponding connecting rod 4, causing the second valve 2.3 to retract inward. At this point, all the first mold valve 2.2 and the second mold valve 2.3 are completely separated from the inner wall of the canister filter product, and a full-circle annular clearance gap is formed between the mold and the product.

[0035] Reset and lock for the next round of production: Rotate the positioning sleeve 6 in the reverse direction, which drives the transmission shaft 5 and the guide plate 3 to rotate in the opposite direction. The guide hole drives the connecting rod 4 to drive the mold lobe 1 2.2 and the mold lobe 2 2.3 to open outward synchronously, restoring the standard cylindrical winding working surface; tighten the fastening nut 7 to press the positioning sleeve 6, and the slot of the positioning sleeve 6 is re-embedded into the slot of the fixed half shaft 1.1, realizing the circumferential locking of the positioning sleeve 6 and the transmission shaft 5.

[0036] Example 2

[0037] An automated separation type fiberglass winding process is provided, which is a process method using the automated separation type fiberglass winding mold provided in Example 1. The process method includes the following steps: S10, Assembly Locking State: Tighten nut 7 to press positioning sleeve 6, the slot of positioning sleeve 6 and the slot of fixed half shaft 1.1 are engaged with each other, positioning sleeve 6 and drive shaft 5 are in circumferential locking state; at this time, drive shaft 5 cannot rotate, and the first valve 2.2 and the second valve 2.3 of the mold remain open and are combined to form a complete cylindrical forming surface; clamp the mold on the fiber winding machine, the winding machine drives the whole set of molds to rotate, and carry out the overall fiber winding operation of the can-type filter with end cap; In this process, the fixed shaft assembly remains stationary while the mold is rotated by the winding machine to perform winding. The drive shaft is circumferentially locked by the engagement of the ferrule slot with the fixed half shaft slot, preventing accidental rotation of the drive shaft during winding operations. This prevents the mold petals from loosening or accidentally closing due to fiber tension and centrifugal force, ensuring the roundness and wall thickness accuracy of the formed product.

[0038] S20. Curing treatment: After the winding is completed, the product is sent to a curing oven to complete the overall curing of the composite material and obtain an integrated uncut canister filter product with end cap and cylinder. S30. Pre-separation process before cutting: After curing, the product remains in an uncut state. Loosen the fastening nut 7, and the positioning sleeve 6 separates from the groove of the fixed half shaft 1.1 under the push of the return spring 8, thus disengaging from the locked state. Insert the pry bar into the pry bar operation hole of the positioning sleeve 6, and turn the pry bar to rotate the positioning sleeve 6, which in turn drives the transmission shaft 5 to rotate through the spline transmission. The transmission shaft 5 drives the guide plate 3 to rotate synchronously. The first guide hole 11 first drives the corresponding connecting rod 4, causing the valve 1 2.2 to retract radially towards the axis, and the valve 1 2.2 separates from the inner wall of the product, forming a local annular gap. The transmission shaft 5 continues to rotate in the same direction, and the second guide hole 12 drives the corresponding connecting rod 4, causing the valve 2.3 to retract inward. At this point, all the mold valves 1 2.2 and 2.3 are completely separated from the inner wall of the canister filter product, and a full-circle annular clearance gap is formed between the mold and the product. After curing, the end cap is sealed, and the mold cannot be directly pulled out from the polar hole. Before cutting, the mold is unlocked and the ferrule is rotated to drive the drive shaft-guide plate to rotate. The mold petals are pre-closed in layers by relying on two different types of guide holes. The mold as a whole separates from the inner wall of the product to form a gap, and then the cutting is performed.

[0039] S40. Cutting and segmentation process: Keep the mold in a pre-separated and retracted state, with a gap between the mold and the inner wall of the tank. The cutter cuts the integrated product along the preset cutting position, dividing the integrated product into two independent parts: the filter product body and the end cap. Since the mold has been pre-separated from the product, the cutting cutter will not contact the mold segments, and cutting debris is not easy to enter the gaps between the mold segments. In this process, an annular gap is left between the mold and the product after pre-separation, preventing the cutting tool from contacting the mold and avoiding damage to the working surface of the mold segments. Simultaneously, cutting debris is less likely to get stuck in the joints of the mold segments, reducing mold segment jamming and extending the mold's lifespan. This effect stems from the structural and process matching relationship of the pre-separation before the cutting process. Before cutting, the mold has already detached from the inner wall of the product, and the cylinder is no longer constrained by the rigid support of the mold, eliminating the compressive stress exerted by the mold on the cylinder. During the cutting process, the cylinder experiences minimal deformation, resulting in a high degree of cut smoothness. This ensures the dimensional accuracy and end-face flatness of the separated filter product body, end caps, and other components.

[0040] S50, Mold detachment and removal: After the product is cut and separated, an open operating port is formed. The entire mold is directly pulled out from the inner cavity of the product through the open port formed by the cutting. S60, Reset and Lock for Next Round of Production: Reverse rotation of positioning sleeve 6 drives transmission shaft 5 and guide plate 3 to rotate in the opposite direction. The guide hole drives connecting rod 4 to drive mold lobe 1 2.2 and mold lobe 2 2.3 to open outward synchronously, restoring the standard cylindrical winding working surface; tighten the fastening nut 7 to press positioning sleeve 6, and the slot of positioning sleeve 6 is re-embedded into the slot of fixed half shaft 1.1, realizing circumferential locking of positioning sleeve 6 and transmission shaft 5, preventing the mold lobe from loosening in the subsequent winding process, and preparing for the next winding and forming.

[0041] This invention allows the mold segments to be retracted and opened by operating the ferrule with an external pry bar. After cutting, the entire mold can be taken out directly from the open cutting port without the need for operators to enter the large tank to remove bolts and pins. This avoids the risks of working in confined spaces, shortens production time, and is suitable for automated mass production.

[0042] The technical solutions of the present invention have been fully described above. It should be noted that the specific embodiments of the present invention are not limited to the above description. All technical solutions formed by those skilled in the art based on the spirit and essence of the present invention by adopting equivalent transformations or equivalent transformations in terms of structure, method or function fall within the protection scope of the present invention.

Claims

1. An automatic separation type fiberglass winding mold with polar holes, characterized in that, include: Fixed shaft assembly (1), which is connected to the fiber winding machine tool drive; The main body assembly of the mold (2) includes a mold head (2.1), valve one (2.2) and valve two (2.3); the number of valve one (2.2) and valve two (2.3) is the same, and they are alternately arranged to form a cylindrical structure; The guide disk (3) is connected to the fixed shaft assembly (1) via a guide disk bearing (10); the guide disk (3) is radially and uniformly provided with multiple sliding channels; the guide disk (3) is provided with multiple first guide holes (11) and second guide holes (12) arranged alternately in sequence; the first guide holes (11) and the second guide holes (12) have different motion trajectories; The number of connecting rods (4) is the same as the number of valve one (2.2) and valve two (2.3); each connecting rod (4) corresponds to one valve one (2.2) or valve two (2.3); the first end of the connecting rod (4) is inserted into the sliding channel and connected to the first guide hole (11) or the second guide hole (12) by a pin; the second end of the connecting rod (4) is fixedly connected to valve one (2.2) or valve two (2.3); The drive shaft (5) is located in the hollow position of the fixed shaft assembly (1) and is connected to the fixed shaft assembly (1) through the drive shaft bearing (9); the drive shaft (5) is driven to the guide disk (3). The locking mechanism is used to lock the drive shaft (5) and the fixed shaft assembly (1) circumferentially when the overall fiber winding operation of the can-type filter with end caps is carried out, so as to achieve synchronous rotation. When the pre-separation process before cutting the can-type filter with end caps is carried out, the locking mechanism disengages from the drive shaft (5) or the fixed shaft assembly (1). The drive shaft (5) can drive the guide plate (3) to rotate synchronously, thereby driving the connecting rod (4) to drive the valve one (2.2) or the valve two (2.3) to retract and disengage from the can-type filter with end caps.

2. The automatic separation type fiberglass winding mold with polar holes according to claim 1, characterized in that, The fixed shaft assembly (1) includes: Two fixed half-shafts (1.1) are provided, and the two fixed half-shafts (1.1) are arranged symmetrically. At least one connecting shaft (1.2) is arranged in sequence and positioned between the two fixed half-shafts (1.1); The positioning block (1.3) is used to fix the fixed half shaft (1.1) and the connecting shaft (1.2) together, as well as the two adjacent connecting shafts (1.2). Multiple guide wheels (1.4), with at least two guide wheels (1.4) forming a group, and each sliding channel is symmetrically provided with a group of guide wheels (1.4) rotatably connected to the guide disk (3); the first end of the connecting rod (4) is inserted into the gap between each group of guide wheels (1.4) and connected to the first guide hole (11) or the second guide hole (12) through a pin.

3. The automatic separation type fiberglass winding mold with polar holes according to claim 1, characterized in that, The guide disc (3) has a spline machined in its center hole, and the spline is connected to the drive shaft (5) for driving.

4. The automatic separation type fiberglass winding mold with polar holes according to claim 1, characterized in that, The two sides of valve one (2.2) and valve two (2.3) have different angles, forming a layered relationship. When valve one (2.2) and valve two (2.3) are separated from the sealed can filter, the valve one (2.2) and valve two (2.3) located in the first layer contract first. When they reach a certain distance, the valve one (2.2) and valve two (2.3) located in the second layer contract again, so that the valve is completely separated from the product. Similarly, when valve one (2.2) and valve two (2.3) return to their original positions, the second layer moves back to its original position first, and then the first layer moves back to its original position, and can firmly lock the valve of the second layer in place.

5. The automatic separation type fiberglass winding mold with polar holes according to claim 1, characterized in that, The locking mechanism includes: Positioning sleeve (6), which is connected to the drive shaft (5) via a spline; Fastening nut (7), the fastening nut (7) is installed at both ends of the transmission shaft (5) to press the positioning sleeve (6); both the positioning sleeve (6) and the fixed shaft assembly (1) are machined with slots for locking between the positioning sleeve (6) and the fixed shaft assembly (1); A return spring (8) is installed between the positioning sleeve (6) and the drive shaft bearing (9).

6. A process for automatically separating fiberglass winding with polar holes, characterized in that, The process method for producing fiberglass winding molds with automatic separation of polar holes according to any one of claims 1 to 5 includes the following steps: S10, Assembly Locking State: Tighten the nut (7) to press the positioning sleeve (6), the slot of the positioning sleeve (6) and the slot of the fixed half shaft (1.1) are engaged with each other, the positioning sleeve (6) and the transmission shaft (5) are in a circumferential locking state; at this time, the transmission shaft (5) cannot rotate, the first valve (2.2) and the second valve (2.3) of the mold remain open and are combined to form a complete cylindrical forming surface; the mold is clamped on the fiber winding machine, the winding machine drives the whole set of molds to rotate, and the overall fiber winding operation of the can-type filter with end cap is carried out; S20. Curing treatment: After the winding is completed, the product is sent to a curing oven to complete the overall curing of the composite material and obtain an integrated uncut canister filter product with end cap and cylinder. S30, Pre-separation process before cutting: After curing, the product remains in an uncut state; loosen the fastening nut (7), and the positioning sleeve (6) separates from the groove of the fixed half shaft (1.1) under the thrust of the return spring (8), thus disengaging from the locked state; insert the pry bar into the pry bar operation hole of the positioning sleeve (6), and move the pry bar to drive the positioning sleeve (6) to rotate, which in turn drives the transmission shaft (5) to rotate through the spline transmission; the transmission shaft (5) drives the guide plate (3) to rotate synchronously; the first guide hole (11) First, drive the corresponding connecting rod (4) to cause valve one (2.2) to retract radially toward the axis, and valve one (2.2) separates from the inner wall of the product, forming a local annular gap; the drive shaft (5) continues to rotate in the same direction, and the second guide hole (12) drives the corresponding connecting rod (4) to cause valve two (2.3) to retract inward; at this point, all mold valve one (2.2) and mold valve two (2.3) are completely separated from the inner wall of the canister filter product, and a full-circle annular clearance gap is formed between the mold and the product; S40. Cutting and segmentation process: Keep the mold in a pre-separated and retracted state, with a gap between the mold and the inner wall of the tank. The cutter cuts the integrated product along the preset cutting position, dividing the integrated product into two independent parts: the filter product body and the end cap. Since the mold has been pre-separated from the product, the cutting cutter will not contact the mold segments, and cutting debris is not easy to enter the gaps between the mold segments. S50, Mold detachment and removal: After the product is cut and separated, an open operating port is formed. The entire mold is directly pulled out from the inner cavity of the product through the open port formed by the cutting. S60, Reset and lock for the next round of production: Rotate the positioning sleeve (6) in the reverse direction, which drives the transmission shaft (5) and guide plate (3) to rotate in the opposite direction. The guide hole drives the connecting rod (4) to drive the first mold piece (2.2) and the second mold piece (2.3) to open outward synchronously, restoring the standard cylindrical winding working surface; tighten the fastening nut (7) to press the positioning sleeve (6), and the slot of the positioning sleeve (6) is re-embedded into the slot of the fixed half shaft (1.1), realizing the circumferential locking of the positioning sleeve (6) and the transmission shaft (5), avoiding the mold piece from loosening in the subsequent winding process, and preparing for the next winding and forming.

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