CN109894550B - Spiral basket shaping mold and spiral basket forming method - Google Patents

Spiral basket shaping mold and spiral basket forming method Download PDF

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Publication number
CN109894550B
CN109894550B CN201910183707.3A CN201910183707A CN109894550B CN 109894550 B CN109894550 B CN 109894550B CN 201910183707 A CN201910183707 A CN 201910183707A CN 109894550 B CN109894550 B CN 109894550B
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basket
spiral
die
groove
core
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CN109894550A (en
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黄瑞龙
李柏耀
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Foshan Dihua Technology Co ltd
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Foshan Dihua Technology Co ltd
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Abstract

The invention discloses a spiral basket shaping die which comprises a die core, wherein a plurality of spiral basket wire grooves are formed in the die core, the spiral axis of each basket wire groove is arranged along the vertical direction, each basket wire groove penetrates through the die core, an upper bundling opening is formed in the top surface of the die core, a lower bundling opening is formed in the bottom surface of the die core, the upper ends of all basket wire grooves are communicated with the upper bundling opening, the lower ends of all basket wire grooves are communicated with the lower bundling opening, and the upper bundling opening and the lower bundling opening are positioned on the same vertical line. A method of forming the spiral basket is also disclosed. Through set up basket silk groove in the mould, the basket silk is worn to locate in the basket silk groove, is carrying out thermal treatment with whole mould and basket silk together, can guarantee the shape accuracy after the basket silk thermal treatment well. The invention relates to the technical field of net basket forming.

Description

Spiral basket shaping mold and spiral basket forming method
Technical Field
The invention relates to the technical field of basket forming, in particular to a spiral basket forming method.
Background
The spiral basket is difficult to ensure the shape precision due to large torsion resistance of the net wire and complex stress, and is difficult to meet the use requirements in certain occasions, such as the stone-taking basket used for ERCP (endoscopic retrograde cholangiopancreatography). The spiral stone-taking net basket is a type commonly used in stone-taking net baskets and has the advantages of being integrally clamped and large in clamping force. The spiral stone-taking basket is in a rugby-shape as a whole, two ends of basket wires are fixed in a cluster, and the middle of the basket wires is unfolded to be in a spiral state. Most of the existing spiral stone-taking net baskets are formed by twisting net basket wires into a spiral shape, and then the spiral stone-taking net baskets are sleeved or directly welded and bunched to be formed through end caps, and the twisted net basket wires need to be subjected to heat treatment and shaping in order to keep the shapes of the net basket wires. The existing method is to take out the twisted basket wire and then carry out heat treatment, the shape of the basket wire is difficult to maintain in the heat treatment setting process, deformation is often generated during heat treatment, and the shape precision is difficult to guarantee.
Disclosure of Invention
One object of the present invention is: the utility model provides a spiral basket design mould, it has the high characteristics of shaping precision.
Another object of the invention is: provides a method for forming a spiral net basket, and the net basket with high shape precision is formed.
The solution of the invention for solving the technical problem is as follows:
spiral basket design mould, including the mold core, be equipped with a plurality of basket silk grooves that are spiral in the mold core, each the spiral axis in basket silk groove all sets up along upper and lower direction, each the basket silk groove all link up the mold core, the top surface of mold core is equipped with the mouth that gathers in the upper beam, the bottom surface of mold core is equipped with down and gathers in the mouth, all the upper end in basket silk groove all with go up the mouth intercommunication that gathers in the upper beam, all the lower extreme in basket silk groove all with the mouth intercommunication is restrainted in the lower beam, it is located same vertical line with the mouth that gathers in the lower beam to go up the mouth. It should be noted that the spiral shape in the present technical solution is not limited to the spiral parameters and the spiral manner. Helical parameters such as pitch, radius of the helix, etc.; examples of the helical form include a variable diameter helix and a variable pitch helix.
As a further improvement of the above technical scheme, the die holder further comprises a die holder, wherein the die holder is provided with a core groove corresponding to the die core, and the die holder is detachably connected with the die core.
As a further improvement of the above technical solution, the mold core includes a plurality of detachable components which are annularly arranged, the number of the components is the same as the number of the basket wire grooves, each of the components is columnar, and a basket wire groove is correspondingly arranged on the outer peripheral surface of each of the components.
As a further improvement of the technical scheme, an upper tongue-and-groove and a lower tongue-and-groove are arranged on the side surface of the split body, the bottom surface of the upper tongue-and-groove and the top surface of the lower tongue-and-groove are arranged in a coplanar manner, and the upper tongue-and-groove and the lower tongue-and-groove are vertically symmetrical.
As a further improvement of the above technical solution, the split body has magnetism.
As a further improvement of the above technical solution, the number of the basket wire grooves is four, correspondingly, the number of the split bodies is four, the four basket wire grooves are all the same in shape, the four basket wire grooves are uniformly distributed along the circumferential direction, and each split body is cylindrical.
The invention also relates to a spiral basket forming method, which comprises the spiral basket shaping mould and further comprises the following steps:
the method comprises the following steps: bundling and fixing one end of a plurality of basket wires to form a wire bundle with a bundled end and an unbound end; step two: respectively penetrating the ends, which are not bundled, of the net basket yarns in the yarn bundles into the lower end of a net basket yarn groove of the sizing die, penetrating the ends out of the upper end of the net basket yarn groove, and tensioning the ends upwards; step three: a fastening member is sleeved outside the end, which is not bunched, of the filament bundle, and the fastening member is pushed downwards and then fastened to form a temporary bunching end; step four: carrying out high-frequency heating on the shaping die and the tows in the step three to 450-650 ℃, wherein the heating time is 70-90 s; step five: placing the shaping mold and the tows in the step four in water for cooling; step six: taking out the cooled sizing die and the tows, dismantling the fastening members to remove the temporary bundling of the tows to form an end which is not bundled again, and taking out the tows; step seven: bundling the non-bundling end of the tow at the temporary bundling end to obtain the shaped basket net.
As a further improvement of the above technical solution, in the spiral basket shaping mold: the die holder is provided with a core groove corresponding to the shape of the die core, and the die core is detachably connected in the core groove; the mold core also comprises a plurality of detachable connected split bodies, the split bodies are arranged in an annular array by taking a connecting line of the centers of the upper bundling opening and the lower bundling opening as a central axis, the number of the split bodies is the same as that of the basket wire grooves, each split body is cylindrical, and the peripheral surface of each split body is correspondingly provided with a basket wire groove; the forming method of the spiral net basket comprises the following steps: replacing the step six with: taking out the cooled shaping mold, and taking out the mold core from the mold base; replacing the step seven by: and (4) disassembling the components of the mold core to obtain the shaped basket net.
The invention has the beneficial effects that: through set up basket silk groove in the mould, the basket silk is worn to locate in the basket silk groove, is carrying out thermal treatment with whole mould and basket silk together, can guarantee the shape precision after the basket silk thermal treatment well, forms spiral helicine basket.
Drawings
In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.
FIG. 1 is a perspective view of an embodiment of a spiral basket sizing die;
FIG. 2 is a partial exploded view of an embodiment of a spiral basket sizing die;
FIG. 3 is a perspective view of a spiral basket sizing die holder;
FIG. 4 is a perspective view of a spiral basket;
fig. 5 is a schematic flow chart of the first embodiment and the second embodiment of the spiral basket forming method.
Description of reference numerals: a die holder-100; core groove-110; a basket wire groove 120; split-210; tongue and groove-211; and (5) making a tongue-and-groove-212.
Detailed Description
The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the connections or connection relationships mentioned herein are not directly connected to each other, but rather, the connection configurations may be better combined by adding or subtracting connection accessories according to the specific implementation. The technical characteristics of the invention can be combined interactively on the premise of not conflicting with each other.
The embodiment is as follows, referring to fig. 1 to 5, a spiral basket shaping mold comprises a mold core, wherein a plurality of spiral basket wire grooves 120 are formed in the mold core, the spiral axes of the basket wire grooves 120 are arranged in the vertical direction, the basket wire grooves 120 penetrate through the mold core, an upper bundling opening is formed in the top surface of the mold core, a lower bundling opening is formed in the bottom surface of the mold core, the upper ends of the basket wire grooves 120 are communicated with the upper bundling opening, the lower ends of the basket wire grooves 120 are communicated with the lower bundling opening, and the upper bundling opening and the lower bundling opening are located on the same vertical line. In this embodiment, the ends of the basket wire grooves 120 are provided with cuts, the outer sides of the cuts are communicated with the outside, the inner sides of the cuts are communicated with the basket wire grooves 120, and the side surfaces of the cuts are communicated with each other, so that an upper bundling opening and a lower bundling opening are formed on the top surface and the bottom surface of the mold core, and the shapes of the basket wire grooves may be uniform or non-uniform. The upper bundling opening and the lower bundling opening are located on the same vertical line, so that the bottom bundling and the top bundling of the basket wire groove 120 are easily kept on the same vertical line, the conventional use habit is better met, and the basket wire groove 120 is easier to control. Be equipped with basket silk groove in the design mould, the basket silk is worn to establish and is carried out non-deformable when thermal treatment in the basket silk groove, is convenient for accomplish the high accuracy thermal treatment design of basket silk.
Further, the die holder 100 is further included, a core groove 110 corresponding to the die core is formed in the die holder 100, and the die holder 100 is detachably connected with the die core. The die holder is provided with a die holder, the die holder is provided with a die holder top surface and a die holder bottom surface, the die holder bottom surface is provided with an upper beam collecting opening and a lower beam collecting opening, and the die holder bottom surface is provided with an avoiding groove corresponding to the upper beam collecting opening and the lower beam collecting opening, and the arrangement of the avoiding groove enables tows to smoothly pass through the upper beam collecting. The core hole 110 may be provided to penetrate or may not be provided to penetrate, and in the embodiment shown in fig. 1, the core hole 110 is provided to penetrate. The die core and the die holder 100 are detachable, and the die holder 100 and the die core are assembled together during heat treatment, so that heat preservation and heat preservation during heat treatment are facilitated; and after the heat treatment, the mold core and the mold are disassembled, so that the rapid cooling and heat dissipation are facilitated.
Further, the mold core includes a plurality of detachable components 210, the components 210 are annularly arranged, the number of the components 210 is the same as that of the basket wire slots 120, each of the components 210 is cylindrical, and a basket wire slot 120 is correspondingly arranged on the outer circumferential surface of each of the components 210. The basket wire groove 120 is provided on the outer surface of the divided body such that one side of the basket wire groove 120 is opened. The thermally treated basket wire can be directly taken out of the basket wire groove 120, on one hand, the basket wire does not need to be taken out in a mode of sliding along the basket wire groove 120 by disassembling the end part, so that the end part does not need to be fastened again in a subsequent mode of end cap or bundling, and on the other hand, the shape precision of the basket wire is more favorably kept; except that the drawing speed is faster by directly drawing the wire basket 120 to the outside.
Further, the number of the basket wire grooves 120 is four, and correspondingly, the number of the split bodies 210 is four, the four basket wire grooves 120 are all identical in shape, the four basket wire grooves 120 are uniformly distributed in the circumferential direction, and each split body 210 is cylindrical. Four basket wire grooves are arranged, so that the spiral basket correspondingly has four basket wires, and the basket is a basket commonly used in the ERCP field and accords with the use habit of the spiral basket commonly used in the ERCP field. Specifically, four the spiral number of turns in basket wire groove all is roughly the round to arrange on the surface of each components of a whole that can function independently, the components of a whole that can function independently sets up to cylindric only need rotate the components of a whole that can function independently with certain speed and simultaneously with certain speed along the direction of rotation removal milling cutter on the surface of components of a whole that can function independently when processing basket wire groove, can form and be the heliciform basket wire groove on the surface. The processing is simple and convenient.
Further, an upper tongue-and-groove 211 and a lower tongue-and-groove 212 are arranged on the side surface of the split body 210, the bottom surface of the upper tongue-and-groove 211 and the top surface of the lower tongue-and-groove 212 are arranged in a coplanar manner, and the upper tongue-and-groove 211 and the lower tongue-and-groove 212 are vertically symmetrical. With the above arrangement, the two divided bodies 210 can be positioned by the upper groove 211 and the lower groove 212 abutting against each other. The upper rabbet 211 and the lower rabbet 212 are arranged in an up-and-down symmetrical manner, the split bodies 210 are in up-and-down symmetrical, and the split bodies 210 do not need to be matched in a directional manner, so that the assembly is more convenient. In addition, the four split bodies 210 can be arranged in the same shape and size by the arrangement, so that the cost of the die is saved.
The application also relates to a spiral basket forming method, which comprises the spiral basket shaping mould, and with reference to fig. 5, the first implementation further comprises the following steps: the method comprises the following steps: bundling and fixing one end of a plurality of basket wires to form a wire bundle with a bundled end and an unbound end; the bundling fixation can be realized by welding or by arranging an end cap outside the basket wire, the end cap is cylindrical in overall appearance, and a wire collecting port is arranged on one end face of the end cap; after one end of each basket wire extends into the wire collecting port, the end caps are tightly pressed to narrow the wire collecting ports of the end caps, and the basket wires are kept in a cluster. It should be noted that, in the use of a specific product, the length of the mesh basket wire can reach several meters, the length part of the mesh basket only occupies about 20cm, and the deformation amount of the mesh basket part is large, and the nickel-titanium alloy wire material is usually selected. The basket wire described herein, which specifically refers to the portion of the prior art that generally uses nitinol wire, is usually connected to one end of the basket wire for cost reasons, so as to avoid unnecessary waste of nitinol wire.
Step two: respectively penetrating the non-bunched ends of the net basket yarns in the yarn bundles into the lower ends of the net basket yarn grooves 120 of the sizing die, penetrating the non-bunched ends of the net basket yarns out of the upper ends of the net basket yarn grooves 120, and tensioning the non-bunched ends upwards; make end and design mould that has already restrainted keep relatively fixed to have a position that can confirm relatively, make the uniformity of utilizing this mould to carry out the product when volume production can obtain guaranteeing.
Step three: the temporary bundling end is formed by sleeving a fastening member outside the tows at the end which is not bundled, pushing the fastening member downwards and fastening the fastening member; the fastening member can be specifically an elastic ring with an opening, the size of an internal through hole of the elastic ring is smaller than the outer diameter of the non-bundling end of the tows in a natural state, when the elastic ring is used, the through hole in the elastic ring is expanded by applying force, the non-bundling end of the tows penetrates through the elastic ring, the elastic ring is pushed downwards, a position which can be determined relatively is arranged at the temporary bundling end of the elastic ring by utilizing the basket wire groove, and the consistency of products can be ensured during mass production; the fastening member may also be a ring member formed of two half rings that are screwed together, or the like.
Step four: carrying out high-frequency heating on the shaping die and the tows in the step three to 450-650 ℃, wherein the heating time is 70-90 s; the high-frequency heating temperature is preferably 500-600 ℃, the heating realization is preferably 60-80 s, and more preferably 80 s;
step five: placing the shaping mold and the tows in the step four in water for cooling; the water can be normal temperature water, the water temperature of the normal temperature water is 20-25 ℃, the shaping mold is placed in the water and cooled to normal temperature, the crystal trend of the basket net is changed and crystal grains are refined in a heating and post-quenching mode.
Step six: taking out the cooled shaping mold and the tows, placing the shaping mold and the tows in water for cooling, dismantling the fastening members to remove temporary bundling of the tows and form an end which is not bundled again, and taking out the tows; the removal of the fastening member may be performed in a corresponding manner, for example, when the fastening member is an elastic ring, the internal through hole of the elastic ring is expanded by applying force by manpower or a tool so as to separate the filament bundle from the elastic ring, and for example, the two half rings are connected by screw threads to form a temporary bundle, and the temporary fastening member is removed by contacting the two half rings and connecting the two half rings by screw threads (i.e., removing screws), and the filament bundle is taken out by sliding the filament bundle through the basket filament slot from top to bottom toward the unbundled end of the filament bundle, so that the basket filament is taken out of the basket filament slot, and the filament bundle is taken out of the shaping mold. After heat treatment and shaping, the temporary bundling section is shaped in a pushing state, and after the basket yarns are shaped, a pressing part is obviously arranged at the temporary bundling position.
Step seven: bundling the non-bundling end of the tow at the temporary bundling end to obtain the formed basket net. The bundling in step seven is the same as the bundling in step one, and the bundling position is the temporary bundling position, i.e. the pressing part formed in step six. The basket wire is made of nickel-titanium alloy and has super-strong elasticity.
Through the steps, the high-precision shaping of the net basket is realized by utilizing the spiral net basket shaping mold, and the shaping precision of the net basket is well ensured.
Further, in a second embodiment of the spiral basket forming method, in the spiral basket shaping mold: the die holder 100 is provided with a core groove 110 corresponding to the shape of the die core, and the die core is detachably connected in the core groove 110; the mold core further comprises a plurality of detachable connected split bodies 210, the split bodies 210 are arranged in an annular array by taking a connecting line of centers of the upper bundling opening and the lower bundling opening as a central axis, the number of the split bodies 210 is the same as that of the basket wire grooves 120, each split body 210 is cylindrical, and one basket wire groove 120 is correspondingly arranged on the outer peripheral surface of each split body 210; the forming method of the spiral net basket comprises the following steps: replacing the step six with: taking out the cooled shaping mold, and taking out the mold core from the mold base 100; after the mold core is taken out, the basket wire grooves are spirally arranged on the surfaces of the split bodies, and the basket wires are alternately arranged in the mold core consisting of the four split bodies in a penetrating way. Replacing the step seven by: and (3) disassembling the split bodies 210 included by the mold core to obtain the shaped basket net. The shaped basket wire has certain shape retention capacity, the basket wire is separated from the basket wire groove by the elasticity of the basket wire, and the basket wire groove 120 is arranged on the outer surface of the split body, so that one side of the basket wire groove 120 is open. The thermally treated basket wire can be directly taken out of the basket wire groove 120, on one hand, the basket wire does not need to be taken out in a mode of sliding along the basket wire groove 120 by disassembling the end part, so that the end part does not need to be fastened again in a subsequent mode of end cap or bundling, and on the other hand, the shape precision of the basket wire is more favorably kept; except that the drawing speed is faster by directly drawing the wire basket 120 to the outside.
While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (5)

1. Spiral basket design mould, its characterized in that: the mould comprises a mould core, wherein a plurality of spiral basket wire grooves (120) are arranged in the mould core, the spiral axis of each basket wire groove (120) is arranged along the vertical direction, each basket wire groove (120) penetrates through the mould core, the top surface of the mould core is provided with an upper bundling opening, the bottom surface of the mould core is provided with a lower bundling opening, the upper ends of all basket wire grooves (120) are communicated with the upper bundling opening, the lower ends of all basket wire grooves (120) are communicated with the lower bundling opening, and the upper bundling opening and the lower bundling opening are positioned on the same vertical line;
the die holder is characterized by further comprising a die holder (100), wherein a core groove (110) corresponding to the die core is formed in the die holder (100), and the die holder (100) is detachably connected with the die core;
the mold core comprises a plurality of detachable connected split bodies (210), the split bodies (210) are annularly arranged, the number of the split bodies (210) is the same as that of the basket wire grooves (120), each split body (210) is columnar, and the peripheral surface of each split body (210) is correspondingly provided with one basket wire groove (120).
2. The spiral basket sizing die of claim 1, wherein: the net basket wire grooves (120) are four in number, correspondingly, the split bodies (210) are four in number, the net basket wire grooves (120) are identical in shape, the four net basket wire grooves (120) are uniformly distributed in the circumferential direction, and the split bodies (210) are cylindrical.
3. The spiral basket sizing die of claim 2, wherein: an upper rabbet (211) and a lower rabbet (212) are arranged on the side surface of the split body (210), the bottom surface of the upper rabbet (211) and the top surface of the lower rabbet (212) are arranged in a coplanar manner, and the upper rabbet (211) and the lower rabbet (212) are vertically symmetrical.
4. The spiral basket sizing die as recited in any one of claims 1 to 3, wherein: the sub-bodies (210) have magnetic properties.
5. The forming method of the spiral net basket is characterized in that: comprising the spiral basket sizing die as recited in claim 1, further comprising the steps of:
the method comprises the following steps: bundling and fixing one end of a plurality of basket wires to form a wire bundle with a bundled end and an unbound end;
step two: enabling the unbundled ends of the basket yarns in the yarn bundle to penetrate into the lower end of a basket yarn groove (120) of the sizing die and penetrate out of the upper end of the basket yarn groove (120) respectively, and tensioning upwards;
step three: a fastening member is sleeved outside the end, which is not bunched, of the filament bundle, and the fastening member is pushed downwards and then fastened to form a temporary bunching end;
step four: carrying out high-frequency heating on the shaping die and the tows in the step three to 450-650 ℃, wherein the heating time is 70-90 s;
step five: placing the shaping mold and the tows in the step four in water for cooling;
step six: taking out the cooled shaping die, and taking out the die core from the die holder (100);
step seven: and (3) disassembling the split bodies (210) included by the mold core to obtain the shaped basket net.
CN201910183707.3A 2019-03-12 2019-03-12 Spiral basket shaping mold and spiral basket forming method Active CN109894550B (en)

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