CN116604810B - Catheter sheath surface forming equipment and forming process thereof - Google Patents
Catheter sheath surface forming equipment and forming process thereof Download PDFInfo
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- CN116604810B CN116604810B CN202310605518.7A CN202310605518A CN116604810B CN 116604810 B CN116604810 B CN 116604810B CN 202310605518 A CN202310605518 A CN 202310605518A CN 116604810 B CN116604810 B CN 116604810B
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- catheter sheath
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 210000001503 joint Anatomy 0.000 claims abstract description 67
- 238000010438 heat treatment Methods 0.000 claims abstract description 51
- 230000000712 assembly Effects 0.000 claims abstract description 46
- 238000000429 assembly Methods 0.000 claims abstract description 46
- 239000008280 blood Substances 0.000 claims abstract description 14
- 210000004369 blood Anatomy 0.000 claims abstract description 14
- 206010047163 Vasospasm Diseases 0.000 claims abstract description 10
- 238000007493 shaping process Methods 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 9
- 229920001971 elastomer Polymers 0.000 claims description 8
- 239000000806 elastomer Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229920000642 polymer Polymers 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 229910003460 diamond Inorganic materials 0.000 claims description 3
- 239000010432 diamond Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 230000000149 penetrating effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 10
- 210000004204 blood vessel Anatomy 0.000 description 6
- 230000000638 stimulation Effects 0.000 description 3
- 208000005392 Spasm Diseases 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002439 hemostatic effect Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 210000002321 radial artery Anatomy 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/021—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing of profiled articles, e.g. hollow or tubular articles, beams
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0009—Making of catheters or other medical or surgical tubes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/002—Component parts, details or accessories; Auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/0043—Catheters; Hollow probes characterised by structural features
- A61M2025/006—Catheters; Hollow probes characterised by structural features having a special surface topography or special surface properties, e.g. roughened or knurled surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
- B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
- B29C59/022—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing characterised by the disposition or the configuration, e.g. dimensions, of the embossments or the shaping tools therefor
- B29C2059/023—Microembossing
Abstract
The invention discloses a catheter sheath surface forming device and a forming process thereof, and relates to the technical field of catheter sheath forming devices. The device comprises a vacuum heating furnace, a pressurizing machine, a pressurizing pipeline, a die butt joint forming device and die assemblies, wherein the pressurizing machine is arranged on one side of the vacuum heating furnace, the die butt joint forming device is arranged inside the vacuum heating furnace, a plurality of die assemblies are uniformly arranged on the top of the die butt joint forming device in a round shape, one end of the pressurizing pipeline is connected with the output end of the pressurizing machine, the other end of the pressurizing pipeline penetrates through the side end of the vacuum heating furnace and is positioned right above one of the die assemblies, each die assembly comprises a first die and a second die, the first die and the second die are identical in shape and are cylinders which are arranged in a vertical penetrating manner after being in butt joint, and a plurality of through holes which are in net distribution are formed in the side ends of the first die and the second die; the device realizes the effect of producing the catheter sheath which can store blood on the surface and prevent the vasospasm from being completely locked.
Description
Technical Field
The invention relates to the technical field of catheter sheath forming equipment, in particular to catheter sheath surface forming equipment and a forming process thereof.
Background
In the prior art, a surface-formed catheter sheath is used for solving the problem that the catheter sheath is completely locked by vasospasm caused by puncture stimulation or pushing other stimulation in the interventional therapy, especially radial artery path interventional surgery, products in the same industry are bright surfaces at present, the probability of the occurrence of the spasm caused by the stimulation of blood vessels in the puncture process is high, if the catheter sheath cannot be normally placed at the moment, the condition of the spasm cannot be relieved due to the fact that the administration cannot be carried out, firstly, the surface-formed catheter sheath is dangerous, secondly, the operation time is greatly prolonged, the surface-formed catheter sheath is contacted with multiple points, blood can be stored on the surface to prevent the occurrence of the condition that the blood is completely locked, the catheter sheath is a single-layer elastomer extrusion tube, a hemostatic valve and a three-way valve are arranged at the proximal end of the catheter body and used for erecting an internal and external passage, the hemostatic valve at the proximal end is used for connecting medicines such as a cocktail wine and the like, the protrusions are contacted with the blood vessel wall of the blood vessel, so that the contact area is reduced, and the resistance is pushed when the blood vessels are in use, the blood vessels are locked by the blood vessels, and the blood is completely locked by the concave portions of the catheter surface; because of the complex molding process, no molding device for the catheter sheath with the bulges on the surface exists in the prior art, and no surface molding device for the catheter sheath is available for producing the catheter sheath capable of storing blood on the surface and preventing the vasospasm from being completely locked.
Disclosure of Invention
The invention provides a catheter sheath surface forming device and a forming process thereof, which aim to solve the technical problems.
The utility model provides a catheter sheath surface forming equipment, includes vacuum heating furnace, pressurizer and pressurization pipeline, still includes mould butt joint forming device and mould subassembly, the vacuum heating furnace sets up on the horizontal plane, the pressurizer sets up in one side of vacuum heating furnace, the mould butt joint forming device sets up inside the vacuum heating furnace, the mould subassembly is equipped with a plurality of, a plurality of the mould subassembly is the top that the round set up at mould butt joint forming device uniformly, the one end and the output of pressurizer of pressurization pipeline are connected, the other end of pressurization pipeline passes the side of vacuum heating furnace and is located one of them mould subassembly directly over, every the mould subassembly all includes first mould and second mould, cylinder that link up the setting from top to bottom is just after the two butt joint to first mould and second mould shape, the side of first mould and second mould all is equipped with a plurality of through-mouths that are the mesh distribution's of size unanimity.
Further, mould butt joint forming device includes butt joint forming component, switching component, breaks away from subassembly and shutoff subassembly, switching component sets up the bottom in the vacuum heating furnace, shutoff subassembly sets up the inside at switching component, break away from the subassembly setting at switching component's top, the butt joint forming component is equipped with a plurality ofly, a plurality of butt joint forming component is circular evenly setting at breaking away from the top of subassembly, every the top of butt joint forming component all is equipped with a mould subassembly.
Further, every butt joint forming assembly all includes mounting bracket, first electric putter, first drive piece, second drive piece and connecting block, the bottom of mounting bracket is connected with the top that breaks away from the subassembly, one side of mounting bracket is uncovered setting and is equipped with the spout, first drive piece is equipped with two, two first drive piece symmetry sets up in the one side that the mounting bracket is equipped with uncovered and all with spout sliding fit, the second drive piece sets up in two first drive pieces and keeps away from the uncovered one side of mounting bracket, the both sides of second drive piece respectively with the side slant sliding fit of two first drive pieces, first electric putter sets up the side that is equipped with uncovered in the mounting bracket and the side that the output of first electric putter passed the mounting bracket is connected with the side of second drive piece, the connecting block is equipped with two, two the connecting block symmetry sets up and is located the one end in the mounting bracket outside respectively with two first drive pieces and is connected with one side that two connecting blocks are close to the contralateral side respectively.
Further, the switching assembly comprises a mounting plate, a rotating sleeve and a driving motor, wherein the mounting plate is arranged at the bottom in the vacuum heating furnace and is circularly arranged, the rotating sleeve is arranged right above the mounting plate, the rotating sleeve is hollow and is annularly arranged at the bottom of the rotating sleeve, the bottom of the rotating sleeve is embedded at the top of the mounting plate and is rotationally connected with the top of the mounting plate, and the driving motor is vertically arranged at the center of the top of the mounting plate and is connected with the output end of the driving motor and the center of the rotating sleeve.
Further, break away from the subassembly and include fixed plate and second electric putter, the vertical center department that sets up at the cover top that rotates of second electric putter, the fixed plate is the level setting, the center department of fixed plate is connected with the output of second electric putter, a plurality of the bottom of the mounting bracket in the butt joint shaping subassembly is all connected with the top of fixed plate.
Further, the shutoff subassembly includes third electric putter and shutoff piece, the vertical setting of third electric putter just is located the rotation cover inside at the mounting panel top, the shutoff piece sets up on the output of third electric putter, all be equipped with the through-hole that corresponds with the bottom position of a plurality of mould subassemblies on rotating cover and the fixed plate, and the position of shutoff piece corresponds with the position of the through-hole that one of them position corresponds on rotating cover and the fixed plate.
Further, the shape of the through hole on each of the plurality of die assemblies is different, and may be diamond, circular or square.
A surface molding process of a catheter sheath, comprising the following steps:
s1: before the shaping operation is carried out on the catheter sheath, firstly, a plurality of unshaped catheter sheaths are respectively placed at a plurality of die assemblies and are positioned between a first die and a second die, then, a plurality of butt joint shaping assemblies are respectively controlled to work, the output end of a first electric push rod is controlled to shrink, the second driving block is driven to move, and in the process of moving, the two first driving blocks which are in oblique sliding fit with the second driving block are controlled to synchronously slide fit in the opposite side direction, so that the first die and the second die are driven to synchronously move from two sides of the catheter sheath to the direction of the catheter sheath until the first die and the second die are butted to form a cylinder which is vertically communicated and fixedly wraps the catheter sheath in the die assemblies, and the fixing operation of the catheter sheath is realized.
S2: after a plurality of catheter sheaths are respectively fixed through a plurality of butt joint forming assemblies, the surfaces of the catheter sheaths are attached to the surfaces of the first die and the second die, and then the third electric push rod is controlled to work to drive the plugging block to move to the bottom of one of the catheter sheaths through the through holes on the rotating sleeve and the fixing plate and to plug the bottom of the one of the catheter sheaths, so that subsequent compression forming work is facilitated.
S3: after the bottom of the catheter sheath is plugged, the second electric push rod is controlled to work to drive the fixing plate to rise so as to drive the catheter sheath to rise, the top end of the catheter sheath is in butt joint with the end part of the pressurized pipeline, and the plugging block moves along with the process, so that the bottom of the catheter sheath is always kept in a plugging state.
S4: then the vacuum heating furnace is controlled to vacuumize, the temperature is set between 100 ℃ and 200 ℃, and after the condition of the vacuum heating furnace reaches the requirement, the interior of the catheter sheath is slowly pressurized to between 1 and 5 tm. Because the heating reason, the polymer elastomer softens, can slightly bulge at this moment, and be limited in the part that the mould subassembly can keep the original state and do not produce the deformation, because the apparatus of catheter sheath adaptation is mostly thicker harder smooth pipe, therefore the slight deformation of catheter sheath inner chamber can not influence its inner chamber function to realize the surface shaping work to the catheter sheath.
S5: after one of the catheter sheaths is formed, the separation assembly and the plugging assembly are controlled to work to release the plugging of the bottom of the catheter sheath and the butt joint of the catheter sheath and the pressurizing pipeline, then the driving motor is controlled to work to drive the rotating sleeve to rotate by a certain angle, so that the other unshaped catheter sheath moves between the plugging block and the pressurizing pipeline, and then the operation is repeated, so that the continuous forming processing operation of a plurality of catheter sheaths is realized.
S6: after the forming processing of all the catheter sheaths is finished, the butt joint forming assembly is controlled to work, the first die and the second die are controlled to be far away from the catheter sheaths, so that the demolding work of the catheter sheaths is realized, and then all the formed catheter sheaths are taken out of the vacuum heating furnace, so that the production forming work of the catheter sheaths capable of storing blood on the surface and preventing the vascular spasm from being completely locked is finished.
Compared with the prior art, the invention has the beneficial effects that:
firstly, when the device is used, a plurality of catheter sheaths to be molded are firstly placed at a plurality of mold assemblies respectively, the mold assemblies are controlled by the mold butt joint molding device to wrap and fix the catheter sheaths in the mold assemblies, different mold assemblies can control the surfaces of the catheter sheaths to be molded into protrusions with different shapes, then the mold butt joint molding device is controlled to seal the bottom of one of the catheter sheaths fixed by the mold assemblies, the top of the mold butt joint molding device is controlled to be in butt joint with the end part of a pressurizing pipeline, a vacuum heating furnace is vacuumized, the temperature is set to be between 100 and 200 ℃, and after the conditions of the vacuum heating furnace meet the requirements, the interior of the catheter sheaths is slowly pressurized to be between 1 and 5 tm. Because the high polymer elastomer is softened and slightly raised at the moment and limited by the parts of the die assemblies, deformation is avoided, as the instruments matched with the catheter sheath are mostly thick and hard smooth catheters, the slight deformation of the inner cavity of the catheter sheath can not affect the functions of the inner cavity of the catheter sheath, after the formation is finished, the formed catheter sheath is controlled to be separated from the pressurizing pipeline through the die butt joint forming device, the catheter sheath in the other die assembly is switched to move to the pressurizing pipeline and butt joint with the pressurizing pipeline for forming, after all the catheter sheaths are formed, the die butt joint forming device is controlled to work, so that each catheter sheath is demoulded from each die assembly, and the production forming work of the catheter sheath capable of storing blood on the surface to prevent the blood from being completely locked by the vasospasm is finished.
And secondly, before the catheter sheath is subjected to forming operation, firstly, a plurality of unshaped catheter sheaths are respectively placed at a plurality of die assemblies and positioned between a first die and a second die, then, a plurality of butt joint forming assemblies are respectively controlled to work, the output end of a first electric push rod is controlled to shrink, and the two first driving blocks which are in oblique sliding fit with the second driving blocks are controlled to synchronously slide fit in the opposite side direction in the process of driving the second driving blocks to move in the opposite side direction from the two sides of the catheter sheath until the first die and the second die are butted to form a cylinder which is vertically penetrated and fixed in the die assemblies in a wrapping manner, so that the fixing work of the catheter sheath is realized.
Thirdly, after the plurality of catheter sheaths are respectively fixed through the plurality of butt joint forming assemblies, the surfaces of the catheter sheaths are attached to the surfaces of the first die and the second die, and then the third electric push rod is controlled to work to drive the plugging block to move to the bottom of one of the catheter sheaths through the through holes on the rotating sleeve and the fixing plate and to plug the bottom of the one of the catheter sheaths, so that the follow-up compression forming work is facilitated; after the bottom of the catheter sheath is plugged, the second electric push rod is controlled to work to drive the fixing plate to rise so as to drive the catheter sheath to rise, the top end of the catheter sheath is in butt joint with the end part of the pressurized pipeline, and the plugging block moves along with the catheter sheath in the process, so that the bottom of the catheter sheath is always kept in a plugging state; then the vacuum heating furnace is controlled to vacuumize, the temperature is set between 100 ℃ and 200 ℃, and after the condition of the vacuum heating furnace reaches the requirement, the interior of the catheter sheath is slowly pressurized to between 1 and 5 tm. Because the high polymer elastomer is softened and slightly bulges at the moment due to heating, the part limited by the die assembly can be kept in the original state and does not deform, and because the catheter sheath is matched with the relatively thick and relatively hard smooth catheter, the slight deformation of the inner cavity of the catheter sheath can not influence the function of the inner cavity of the catheter sheath, so that the surface forming work of the catheter sheath is realized; after one of the catheter sheaths is formed, the separation assembly and the plugging assembly are controlled to work to release the plugging of the bottom of the catheter sheath and the butt joint of the catheter sheath and the pressurizing pipeline, then the driving motor is controlled to work to drive the rotating sleeve to rotate for a certain angle, so that the other unshaped catheter sheath moves between the plugging block and the pressurizing pipeline, and then the operation is repeated, so that the continuous forming processing operation of a plurality of catheter sheaths is realized; after the forming processing of all the catheter sheaths is finished, the butt joint forming assembly is controlled to work, the first die and the second die are controlled to be far away from the catheter sheaths, so that the demolding work of the catheter sheaths is realized, and then all the formed catheter sheaths are taken out of the vacuum heating furnace, so that the production forming work of the catheter sheaths capable of storing blood on the surface and preventing the vascular spasm from being completely locked is finished.
Fourth, through setting up the through-hole on first mould and the second mould in the mould subassembly into different shapes to control its bellied shape in surface after the sheath shaping according to the demand, satisfy different user demands.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective cross-sectional view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic perspective view of a die-docking forming apparatus and a die assembly of the present invention;
FIG. 4 is a schematic perspective view of a butt-jointed molding assembly and a mold assembly according to the present invention;
FIG. 5 is a schematic view of an exploded view of a butt-jointed module according to the present invention;
FIG. 6 is a schematic perspective view of a mold assembly according to the present invention;
FIG. 7 is a schematic view of a partial explosion structure of a die-docking and molding device of the present invention;
fig. 8 is an enlarged view at a in fig. 7.
Reference numerals:
the vacuum heating furnace 1, the pressurizing machine 2, the pressurizing pipeline 3, the die butt-joint forming device 4, the butt-joint forming assembly 41, the mounting frame 411, the first electric push rod 412, the first driving block 413, the second driving block 414, the connecting block 415, the switching assembly 42, the mounting plate 421, the rotating sleeve 422, the driving motor 423, the disengaging assembly 43, the fixing plate 431, the second electric push rod 432, the plugging assembly 44, the third electric push rod 441, the plugging block 442, the die assembly 5, the first die 51 and the second die 52.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The utility model provides a catheter sheath surface forming equipment, includes vacuum heating furnace 1, press 2 and pressurization pipeline 3, still includes mould butt joint forming device 4 and mould subassembly 5, vacuum heating furnace 1 sets up on the horizontal plane, press 2 sets up in one side of vacuum heating furnace 1, mould butt joint forming device 4 sets up in vacuum heating furnace 1 inside, mould subassembly 5 is equipped with a plurality of, a plurality of mould subassembly 5 is the circular evenly setting in the top of mould butt joint forming device 4, the one end of pressurization pipeline 3 is connected with the output of press 2, the other end of pressurization pipeline 3 passes the side of vacuum heating furnace 1 and is located directly over one of them mould subassembly 5, every mould subassembly 5 all includes first mould 51 and second mould 52, the cylinder that the shape is unanimous and the two is the vertical through-arrangement after the butt joint of first mould 51 and second mould 52, the side of first mould 51 and second mould 52 all is equipped with a plurality of and takes the form the through-mouthful of being the mesh and distributing that is the size is unanimous; when the device is used, firstly, a plurality of catheter sheaths to be formed are respectively placed at a plurality of die assemblies 5, the die assemblies 5 are controlled by the die butt joint forming device 4 to wrap and fix the catheter sheaths in the die assemblies 5, different die assemblies 5 can control the surfaces of the catheter sheaths to form protrusions with different shapes, then the bottom of one of the catheter sheaths fixed by the die assemblies 5 is plugged by the die butt joint forming device 4, the top of the catheter sheaths is controlled to be in butt joint with the end part of the pressurizing pipeline 3, the vacuum heating furnace 1 is vacuumized, the temperature is set to be between 100 and 200 ℃, and after the conditions of the vacuum heating furnace 1 meet the requirements, the interior of the catheter sheaths is slowly pressurized to be between 1 and 5 tm. Because the high polymer elastomer is softened and slightly raised at this time and limited by the parts of the die assemblies 5, deformation is avoided, as the instruments for adapting the catheter sheath are mostly thicker and harder smooth catheters, the slight deformation of the inner cavity of the catheter sheath can not affect the functions of the inner cavity of the catheter sheath, after the formation is finished, the molded catheter sheath is controlled to be separated from the pressurizing pipeline 3 through the die butt joint forming device 4, the catheter sheath in the other die assembly 5 is switched to move to the pressurizing pipeline 3 and butt joint with the pressurizing pipeline for forming, after all the catheter sheaths are formed, the die butt joint forming device 4 is controlled to work, so that each catheter sheath is respectively and completely demoulded with each die assembly 5, and thus, the production forming work of the catheter sheath capable of storing blood on the surface and preventing the blood from being completely locked by the vasospasm is completed.
Preferably, the die butt-joint forming device 4 comprises a butt-joint forming assembly 41, a switching assembly 42, a separating assembly 43 and a plugging assembly 44, wherein the switching assembly 42 is arranged at the bottom in the vacuum heating furnace 1, the plugging assembly 44 is arranged in the switching assembly 42, the separating assembly 43 is arranged at the top of the switching assembly 42, the butt-joint forming assembly 41 is provided with a plurality of die assemblies 5, the plurality of butt-joint forming assemblies 41 are uniformly arranged at the top of the separating assembly 43 in a circular shape, and each die assembly 5 is arranged at the top of the butt-joint forming assembly 41.
Preferably, each butt joint forming assembly 41 includes a mounting frame 411, a first electric push rod 412, a first driving block 413, a second driving block 414 and a connecting block 415, the bottom end of the mounting frame 411 is connected with the top of the separation assembly 43, one side of the mounting frame 411 is provided with an opening and is provided with a sliding groove, two first driving blocks 413 are symmetrically arranged on one side of the mounting frame 411 and are in sliding fit with the sliding groove, the second driving block 414 is arranged on one side, far away from the opening of the mounting frame 411, of the two first driving blocks 413, two sides of the second driving block 414 are respectively in oblique sliding fit with the side ends of the two first driving blocks 413, the first electric push rod 412 is arranged on one side, which is not provided with the opening, of the mounting frame 411, the output end of the first electric push rod 412 penetrates through the side end of the mounting frame 411 and is connected with the side end of the second driving block 414, two first driving blocks 415 are symmetrically arranged and are respectively connected with one end, located on the outer side of the 411, of the two first driving blocks 413, and two sides of the first driving blocks 415 are respectively close to two side dies 415 are respectively connected with two side dies 51; before the shaping operation is performed on the catheter sheath, firstly, a plurality of unshaped catheter sheaths are respectively placed at the positions of the plurality of die assemblies 5 and are positioned between the first die 51 and the second die 52, then, a plurality of butt joint shaping assemblies 41 are respectively controlled to work, the output end of the first electric push rod 412 is controlled to shrink, the second driving block 414 is driven to move, and in the process of moving, the two first driving blocks 413 which are in oblique sliding fit with the second driving block are controlled to synchronously slide fit in the opposite side direction, so that the first die 51 and the second die 52 are driven to synchronously move from two sides of the catheter sheath to the direction of the catheter sheath until the first die 51 and the second die 52 are butted into cylinders which are vertically and vertically arranged in a penetrating mode to wrap and fix the catheter sheath in the die assemblies 5, and the fixing operation of the catheter sheath is realized.
Preferably, the switching component 42 comprises a mounting plate 421, a rotating sleeve 422 and a driving motor 423, wherein the mounting plate 421 is arranged at the bottom in the vacuum heating furnace 1 and the mounting plate 421 is in a circular shape, the rotating sleeve 422 is arranged right above the mounting plate 421, the rotating sleeve 422 is in a hollow shape, the bottom of the rotating sleeve 422 is in an annular shape, the bottom of the rotating sleeve 422 is embedded at the top of the mounting plate 421 and is in rotary connection with the mounting plate 421, and the driving motor 423 is vertically arranged at the center of the top of the mounting plate 421 and the output end of the driving motor 423 is connected with the center of the rotating sleeve 422.
Preferably, the disengaging assembly 43 includes a fixed plate 431 and a second electric push rod 432, the second electric push rod 432 is vertically disposed at the center of the top of the rotating sleeve 422, the fixed plate 431 is horizontally disposed, the center of the fixed plate 431 is connected with the output end of the second electric push rod 432, and the bottoms of the mounting frames 411 in the butt joint forming assembly 41 are all connected with the top of the fixed plate 431.
Preferably, the plugging assembly 44 includes a third electric push rod 441 and a plugging block 442, the third electric push rod 441 is vertically disposed at the top of the mounting plate 421 and is located inside the rotating sleeve 422, the plugging block 442 is disposed at the output end of the third electric push rod 441, through holes corresponding to the bottom end positions of the plurality of mold assemblies 5 are disposed on the rotating sleeve 422 and the fixing plate 431, and the position of the plugging block 442 corresponds to the position of the through hole corresponding to one of the rotating sleeve 422 and the fixing plate 431; after the multiple catheter sheaths are fixed by the multiple butt joint forming assemblies 41, the surfaces of the catheter sheaths are attached to the surfaces of the first mold 51 and the second mold 52, and then the third electric push rod 441 is controlled to work so as to drive the plugging block 442 to move to the bottom of one of the catheter sheaths through the through holes on the rotating sleeve 422 and the fixing plate 431 and perform plugging operation on the bottom of the one catheter sheath, so that the subsequent compression forming work is facilitated; after the bottom of the catheter sheath is plugged, the second electric push rod 432 is controlled to work to drive the fixing plate 431 to rise so as to drive the catheter sheath to rise, the top end of the catheter sheath is in butt joint with the end part of the pressurizing pipeline 3, and the plugging block 442 moves along with the catheter sheath in the process, so that the bottom of the catheter sheath always keeps a plugging state; then the vacuum heating furnace 1 is controlled to vacuumize, the temperature is set between 100 ℃ and 200 ℃, and after the conditions of the vacuum heating furnace 1 meet the requirements, the interior of the catheter sheath is slowly pressurized to between 1 and 5 tm. Because the high polymer elastomer is softened and slightly bulges at the moment due to heating, the part limited by the die assembly 5 can be kept as is and is not deformed, and because the catheter sheath is mainly matched with a thicker and harder smooth catheter, the slight deformation of the inner cavity of the catheter sheath can not influence the function of the inner cavity of the catheter sheath, so that the surface forming work of the catheter sheath is realized; after one of the catheter sheaths is formed, the separation assembly 43 and the blocking assembly 44 are controlled to work to release the blocking of the bottom of the catheter sheath and the butt joint with the pressurizing pipeline 3, then the driving motor 423 is controlled to work to drive the rotating sleeve 422 to rotate a certain angle, so that the other unshaped catheter sheath moves between the blocking block 442 and the pressurizing pipeline 3, and then the operation is repeated to realize the continuous forming processing operation of a plurality of catheter sheaths; after the forming processing of all the catheter sheaths is finished, the butt joint forming assembly 41 is controlled to work, the first die 51 and the second die 52 are controlled to be away from the catheter sheaths, so that the demolding work of the catheter sheaths is realized, and then all the formed catheter sheaths are taken out of the vacuum heating furnace 1, so that the production forming work of the catheter sheaths capable of storing blood on the surface and preventing the vascular spasm from being completely locked is finished.
Preferably, the shape of the through hole on each mold assembly 5 in the plurality of mold assemblies 5 is different, and may be diamond, circular or square; through setting the through holes on the first die 51 and the second die 52 in the die assembly 5 to be different shapes, the shape of the surface bulge of the catheter sheath after the catheter sheath is formed is controlled according to the requirements, and different use requirements are met.
A surface molding process of a catheter sheath, comprising the following steps:
s1: before the shaping operation is performed on the catheter sheath, firstly, a plurality of unshaped catheter sheaths are respectively placed at the positions of the plurality of die assemblies 5 and are positioned between the first die 51 and the second die 52, then, a plurality of butt joint shaping assemblies 41 are respectively controlled to work, the output end of the first electric push rod 412 is controlled to shrink, the second driving block 414 is driven to move, and in the process of moving, the two first driving blocks 413 which are in oblique sliding fit with the second driving block are controlled to synchronously slide fit in the opposite side direction, so that the first die 51 and the second die 52 are driven to synchronously move from two sides of the catheter sheath to the direction of the catheter sheath until the first die 51 and the second die 52 are butted into cylinders which are vertically and vertically arranged in a penetrating mode to wrap and fix the catheter sheath in the die assemblies 5, and the fixing operation of the catheter sheath is realized.
S2: after the multiple catheter sheaths are fixed by the multiple butt joint forming assemblies 41, the surface of the catheter sheath is attached to the surfaces of the first mold 51 and the second mold 52, and then the third electric push rod 441 is controlled to operate to drive the plugging block 442 to move to the bottom of one of the catheter sheaths through the through holes on the rotating sleeve 422 and the fixing plate 431 and to perform plugging operation on the bottom of the one catheter sheath, so as to facilitate subsequent compression forming operation.
S3: after the bottom of the catheter sheath is plugged, the second electric push rod 432 is controlled to work to drive the fixing plate 431 to rise so as to drive the catheter sheath to rise, the top end of the catheter sheath is in butt joint with the end of the pressurizing pipeline 3, and the plugging block 442 moves along with the catheter sheath in the process, so that the bottom of the catheter sheath always keeps a plugging state.
S4: then the vacuum heating furnace 1 is controlled to vacuumize, the temperature is set between 100 ℃ and 200 ℃, and after the conditions of the vacuum heating furnace 1 meet the requirements, the interior of the catheter sheath is slowly pressurized to between 1 and 5 tm. Because the high polymer elastomer is softened and slightly bulges at the moment due to heating, the part limited by the die assembly 5 can be kept as is and is not deformed, and because the catheter sheath is matched with the relatively thick and relatively hard smooth catheter, the slight deformation of the inner cavity of the catheter sheath can not influence the function of the inner cavity of the catheter sheath, thereby realizing the surface forming work of the catheter sheath.
S5: after one of the catheter sheaths is formed, the separation assembly 43 and the blocking assembly 44 are controlled to work to release the blocking of the bottom of the catheter sheath and the butt joint with the pressurizing pipeline 3, then the driving motor 423 is controlled to work to drive the rotating sleeve 422 to rotate a certain angle, so that the other unshaped catheter sheath moves between the blocking block 442 and the pressurizing pipeline 3, and then the operation is repeated to realize the continuous forming processing operation of a plurality of catheter sheaths.
S6: after the forming processing of all the catheter sheaths is finished, the butt joint forming assembly 41 is controlled to work, the first die 51 and the second die 52 are controlled to be away from the catheter sheaths, so that the demolding work of the catheter sheaths is realized, and then all the formed catheter sheaths are taken out of the vacuum heating furnace 1, so that the production forming work of the catheter sheaths capable of storing blood on the surface and preventing the vascular spasm from being completely locked is finished.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; while the invention has been described in detail with reference to the foregoing embodiments, it will be appreciated by those skilled in the art that variations may be made in the techniques described in the foregoing embodiments, or equivalents may be substituted for in part or in whole; such modifications and substitutions do not depart from the spirit of the invention.
Claims (3)
1. The utility model provides a catheter sheath surface shaping equipment, includes vacuum heating furnace (1), booster (2) and pressurization pipeline (3), its characterized in that: the novel plastic injection molding machine comprises a vacuum heating furnace (1), and is characterized by further comprising a mold butt-joint forming device (4) and a mold assembly (5), wherein the vacuum heating furnace (1) is arranged on a horizontal plane, the pressurizing machine (2) is arranged on one side of the vacuum heating furnace (1), the mold butt-joint forming device (4) is arranged inside the vacuum heating furnace (1), the mold assembly (5) is provided with a plurality of circular and uniform mold assemblies (5) arranged at the top of the mold butt-joint forming device (4), one end of a pressurizing pipeline (3) is connected with the output end of the pressurizing machine (2), the other end of the pressurizing pipeline (3) penetrates through the side end of the vacuum heating furnace (1) and is positioned right above one of the mold assemblies (5), each mold assembly (5) comprises a first mold (51) and a second mold (52), the first mold (51) and the second mold (52) are in consistent shapes and are in a cylinder which are vertically and communicated after being in butt joint, and the side ends of the first mold (51) and the second mold (52) are provided with a plurality of large and small through ports which are distributed in a net shape and are consistent;
the die butt joint forming device (4) comprises a butt joint forming assembly (41), a switching assembly (42), a separation assembly (43) and a plugging assembly (44), wherein the switching assembly (42) is arranged at the bottom in the vacuum heating furnace (1), the plugging assembly (44) is arranged in the switching assembly (42), the separation assembly (43) is arranged at the top of the switching assembly (42), a plurality of butt joint forming assemblies (41) are arranged, a plurality of butt joint forming assemblies (41) are uniformly arranged at the top of the separation assembly (43) in a circular shape, and one die assembly (5) is arranged at the top of each butt joint forming assembly (41); each butt joint forming assembly (41) comprises a mounting frame (411), a first electric push rod (412), a first driving block (413), a second driving block (414) and a connecting block (415), wherein the bottom end of the mounting frame (411) is connected with the top of the separation assembly (43), one side of the mounting frame (411) is provided with an opening and is provided with a sliding groove, the first driving blocks (413) are provided with two, the two first driving blocks (413) are symmetrically arranged on one side of the mounting frame (411) provided with the opening and are in sliding fit with the sliding groove, the second driving block (414) is arranged on one side of the two first driving blocks (413) away from the opening of the mounting frame (411), two sides of the second driving block (414) are respectively in oblique sliding fit with the side ends of the two first driving blocks (413), the first electric push rod (412) is arranged on one side of the mounting frame (411) which is not provided with the opening, the output end of the first electric push rod (412) penetrates through the side end of the mounting frame (411) to be connected with the side end of the second driving block (414), the two second driving blocks (415) are symmetrically arranged on two sides of the mounting frame (415) which are respectively connected with the two connecting blocks (415), the side ends of the first die (51) and the second die (52) are respectively connected with one side, close to the opposite side, of the two connecting blocks (415);
the switching assembly (42) comprises a mounting plate (421), a rotating sleeve (422) and a driving motor (423), wherein the mounting plate (421) is arranged at the bottom in the vacuum heating furnace (1) and is circularly arranged, the rotating sleeve (422) is arranged right above the mounting plate (421), the rotating sleeve (422) is arranged in a hollow mode, the bottom end of the rotating sleeve (422) is arranged in an annular mode, the bottom end of the rotating sleeve (422) is embedded at the top of the mounting plate (421) and is in rotary connection with the top of the mounting plate, and the driving motor (423) is vertically arranged at the center of the top of the mounting plate (421) and the output end of the driving motor (423) is connected with the center of the rotating sleeve (422);
the separation assembly (43) comprises a fixed plate (431) and a second electric push rod (432), the second electric push rod (432) is vertically arranged at the center of the top of the rotating sleeve (422), the fixed plate (431) is horizontally arranged, the center of the fixed plate (431) is connected with the output end of the second electric push rod (432), and the bottoms of the installation frames (411) in the butt joint forming assemblies (41) are connected with the top of the fixed plate (431);
the plugging assembly (44) comprises a third electric push rod (441) and a plugging block (442), the third electric push rod (441) is vertically arranged at the top of the mounting plate (421) and is located inside the rotating sleeve (422), the plugging block (442) is arranged at the output end of the third electric push rod (441), through holes corresponding to the bottom end positions of the plurality of die assemblies (5) are formed in the rotating sleeve (422) and the fixing plate (431), and the position of the plugging block (442) corresponds to the position of one through hole corresponding to one position of the rotating sleeve (422) and the fixing plate (431).
2. The apparatus of claim 1, wherein the openings in each die assembly (5) are diamond, circular or square.
3. A surface shaping process based on a sheath surface shaping apparatus as claimed in any one of claims 1-2, comprising the steps of:
s1: before the shaping operation is carried out on the catheter sheath, a plurality of unshaped catheter sheaths are firstly respectively arranged at a plurality of die assemblies (5) and positioned between a first die (51) and a second die (52), then a plurality of butt joint shaping assemblies (41) are respectively controlled to work, the output end of a first electric push rod (412) is controlled to shrink, and two first driving blocks (413) which are in oblique sliding fit with the first driving blocks are controlled to synchronously slide fit in the opposite side direction in the moving process of the second driving blocks (414), so that the first die (51) and the second die (52) are driven to synchronously move from two sides of the catheter sheath to the direction of the catheter sheath until the first die (51) and the second die (52) are butted into cylinders which are vertically communicated and are wrapped and fixed in the die assemblies (5), and the fixing operation of the catheter sheath is realized;
s2: after the catheter sheaths are respectively fixed through the butt joint forming assemblies (41), the surfaces of the catheter sheaths are attached to the surfaces of the first die (51) and the second die (52), and then the third electric push rod (441) is controlled to work so as to drive the plugging block (442) to move to the bottom of one of the catheter sheaths through the through holes on the rotating sleeve (422) and the fixing plate (431) and to plug the bottom of the one of the catheter sheaths, so that the subsequent compression forming work is facilitated;
s3: after the bottom of the catheter sheath is plugged, the second electric push rod (432) is controlled to work to drive the fixing plate (431) to rise so as to drive the catheter sheath to rise to enable the top end of the catheter sheath to be in butt joint with the end of the pressurizing pipeline (3), and in the process, the plugging block (442) moves along with the catheter sheath, so that the bottom of the catheter sheath is always kept in a plugging state;
s4: then controlling the vacuum heating furnace (1) to vacuumize, setting the temperature between 100 ℃ and 200 ℃, slowly pressurizing the interior of the catheter sheath to 1-5tm after the condition of the vacuum heating furnace (1) meets the requirement, wherein the high polymer elastomer is softened and slightly bulges due to heating, the part limited by the die assembly (5) is kept as it is and does not deform, and the slight deformation of the inner cavity of the catheter sheath does not influence the inner cavity function of the catheter sheath because the matched instrument of the catheter sheath is a rough and hard smooth catheter, so that the surface forming work of the catheter sheath is realized;
s5: after one of the catheter sheaths is formed, the detachment assembly (43) and the blocking assembly (44) are controlled to work to release the blocking of the bottom of the catheter sheath and the butt joint with the pressurizing pipeline (3), then the driving motor (423) is controlled to work to drive the rotating sleeve (422) to rotate a certain angle, so that the other unshaped catheter sheath moves between the blocking block (442) and the pressurizing pipeline (3), and then the operation is repeated to realize the continuous forming processing operation of a plurality of catheter sheaths;
s6: after the forming processing of all the catheter sheaths is finished, the butt joint forming assembly (41) is controlled to work, the first die (51) and the second die (52) are controlled to be away from the catheter sheaths, so that the demolding work of the catheter sheaths is realized, and then all the formed catheter sheaths are taken out of the vacuum heating furnace (1), so that the production forming work of the catheter sheaths capable of storing blood on the surface and preventing the vascular spasm from being completely locked is finished.
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| CN202310605518.7A CN116604810B (en) | 2023-05-25 | 2023-05-25 | Catheter sheath surface forming equipment and forming process thereof |
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| CN202310605518.7A CN116604810B (en) | 2023-05-25 | 2023-05-25 | Catheter sheath surface forming equipment and forming process thereof |
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