Plastic guide pipe extrusion nozzle for processing medical apparatus and instruments

Abstract

The invention provides a plastic catheter extrusion nozzle for medical instrument processing, and relates to the technical field of nozzles, the plastic catheter extrusion nozzle comprises a moving head, the outer side of the top end of the moving head is sleeved with a spring, the outer side of the bottom of the moving head is of an inclined structure, the top end of the moving head is provided with a top groove, and the two sides of the top groove are each provided with a rectangular groove; a stress plate is embedded in the top groove, and a pull rod is embedded in the rectangular groove. When the moving head moves downwards, materials are extruded downwards preliminarily, the moving head continuously moves downwards and drives the moving plate to move together, the stress head can move in the guide groove, the stress head and the guide plate drive the moving plate to move towards the side edge, the scraping groove can make contact with the materials discharged preliminarily, and then the materials are scraped and removed. The problems that when materials are preliminarily extruded by an extrusion nozzle in a guide pipe, the phenomenon of deformation of the guide pipe is prone to occurring, manual scraping is needed, operation is inconvenient, and automatic scraping cannot be conducted by means of power of a telescopic structure are solved.

Description

Technical Field

[0001] The invention relates to the technical field of nozzles, in particular to a plastic catheter extrusion nozzle used for processing medical equipment. Background Art

[0002] When processing medical devices such as plastic catheters, a blow molding machine and an extrusion nozzle are usually required to extrude the plastic catheter. However, as far as the current traditional extrusion nozzles are concerned, after use, residual material is likely to remain inside, and the automatic telescopic structure inside the nozzle cannot be used to push the residual material. The heat preservation effect of the nozzle is poor when it is used, and solidification is likely to occur when the extrusion tube is temporarily stopped. It cannot be fully insulated after expansion and contraction. When the tube is initially extruded, the tube is prone to deformation, requiring manual scraping, which is inconvenient to operate and cannot be automatically scraped with the help of the power of the telescopic structure. Summary of the invention

[0003] In view of this, the present invention provides a plastic catheter extrusion nozzle for medical device processing, which has a top groove, so that when the device stops extruding the catheter, the spring can push the moving head to reset, so that the top groove can fit and seal with the force plate, and then push the remaining material inside the main body upward, reducing the remaining residual material and reducing the chance of blockage.

[0004] The invention provides a plastic catheter extrusion nozzle for medical device processing, which specifically comprises: a main body; the main body is an extrusion nozzle body, the main body is a cylindrical structure with a protrusion in the middle, a thread is arranged on the outer side of the top of the main body, and the inside of the main body is a cylindrical structure with protrusions in the middle of both ends, and the main body comprises: a stopper, the stopper is an arc-shaped plate-shaped structure, a gap is arranged in the middle position of the stopper, and the stoppers are evenly arranged and fixed in the arc-shaped groove of a heat-insulating component; a moving head, the top of the moving head is a cylindrical structure with a protrusion in the middle, a spring is sleeved on the outer side of the top of the moving head, the outer side of the bottom of the moving head is an inclined structure, a discharge pipe is arranged inside the moving head, the top of the moving head and the spring are installed inside the main body, a top groove is opened at the top of the moving head, the top groove is an inclined structure, a rectangular groove is respectively arranged on both sides of the top groove, a force-bearing plate is embedded in the inside of the top groove, and a pull rod is embedded in the inside of the rectangular groove; a moving plate, the moving plate is a U-shaped structure, the moving plate is made of metal, the moving plate is at the bottom of the moving head, a scraping groove is respectively arranged on both sides of the inside and the outside of the moving plate, and the upper and lower sides of the outer end of the scraping groove are inclined structures.

[0005] Optionally, the main body also includes: a contact piece, which is a hemispherical structure, and the contact pieces are evenly arranged in a ring shape and fixed inside the main body. A through groove is respectively provided at the top of both sides of the main body, and the through groove is a rectangular structure; the main body also includes: a force-bearing plate, which is a conical structure, and the force-bearing plate is installed inside the main body. A pull rod is respectively provided on both sides of the force-bearing plate, and the pull rod is a Z-shaped structure, and the middle position of the pull rod is inserted into the inside of the through groove; the main body also includes: a guide plate, which is an L-shaped plate structure, and there are two guide plates in total. The two guide plates are respectively fixed at the outer ends of the two pull rods, and a guide groove is provided inside each guide plate, and the guide groove is an inclined structure, and the two ends of the guide groove are arc structures; the main body also includes: a thermal insulation piece, which is a cylindrical structure, and the thermal insulation piece is installed on the outside of the main body. The interior of the thermal insulation piece contacts the contact piece, and the material of the thermal insulation piece is thermal insulation material. The interior of the thermal insulation piece is provided with a cylindrical inner cavity arranged in a ring, and an arc groove is respectively provided on both sides of the thermal insulation piece.

[0006] Optionally, the moving head also includes: a bottom piece, which is a conical structure and is installed at the inner bottom end of the moving head through two triangular rods; the moving head also includes: an outer piece, which is a circular structure, and the interior of the outer piece is a cylindrical structure with a protrusion in the middle of the bottom, the outer piece is installed on the outside of the bottom of the moving head, and the bottom of the insulation piece is inserted into the interior of the outer piece, and two auxiliary pieces are respectively provided on both sides of the outer piece, and the top of the auxiliary piece is composed of a wedge block and a round rod, and the bottom of the auxiliary piece is composed of a rectangular plate and a wedge block; the moving head also includes: a bottom rod, which is a rectangular structure, and there are two bottom rods in total, and the two bottom rods are respectively fixed on both sides of the bottom of the moving head, and each bottom rod has a slide groove inside, and the slide groove is a rectangular structure.

[0007] Optionally, the movable plate also includes: a collecting groove, which is an arc-shaped structure and is arranged inside the scraping groove; the movable plate also includes: a guide plate, which is a rectangular structure, and there are two guide plates in total, which are respectively fixed on both sides of the top of the movable plate, and a force-bearing head is provided on the inner side of the top of each guide plate, and the force-bearing head is a cylindrical structure, and the force-bearing head is inserted into the inside of the guide groove.

[0008] Beneficial Effects Compared with a conventional extrusion nozzle, the extrusion nozzle according to the embodiments of the present invention can be configured such that the movable plate receives power through the force-bearing head and automatically moves, thereby enabling the scraping groove to automatically scrape the initially discharged material.

[0009] In addition, by installing the moving head, when the device is in use, the material is discharged and circulated inside the main body, so that the material can contact the force-bearing plate and the moving head, and then impact and displace it, so that the force-bearing plate and the moving head move together. After the force-bearing plate moves, it is blocked by the pull rod to limit the force-bearing plate, so that the force-bearing plate cannot move, and the material will pass through the outside of the force-bearing plate, and then continue to push the moving head to move downward, and then compress the spring outside the moving head, so that the material can be extruded and formed. When the device is stopped, the material stops flowing, and the spring pushes the moving head to reset, so that the force-bearing plate can be embedded in the inside of the top groove, and then the top of the moving head is sealed, and then the moving head drives the force-bearing plate to continue to move upward, so that the material can be pushed upward, thereby reducing the material inside the main body and the probability of blockage; In addition, by installing the heat preservation part, when the moving head drives the force-bearing plate to move downward together, the pull rod can press the heat preservation part to move downward together, so that the heat preservation part can be at the bottom of the main body to keep warm. After the pull rod stops moving, the contact part makes auxiliary contact with the heat preservation part, so that the heat preservation part can be fixed, and the outer part continues to move downward so that the inner bottom end of the outer part can form a vacuum with the bottom of the heat preservation part to prevent air circulation, thereby making the main body and the outer side of the moving head keep warm in all directions. After the moving head is reset, the air inside the moving head is compressed, so that the air can push the stopper to be discharged, thereby making the heat preservation part be inside the pull part again. In addition, by installing the moving plate, when the force-bearing plate cannot move downward and the moving head continues to move downward, the material is initially extruded downward, and the moving head continues to move downward, driving the moving plate to move together, so that the force-bearing head can move inside the guide groove. Since the guide groove is an inclined structure, the force-bearing head and the guide plate drive the moving plate to move sideways, so that the scraping groove can contact the initially discharged material, and then scrape and remove the material to avoid deformation of the initially discharged material. When the moving head stops discharging the material and resets, the moving plate can follow the movement again, so that the scraping groove on the right can scrape the remaining material again to avoid material remaining at the bottom of the moving head. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0011] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0012] In the attached picture: Figure 1 A schematic diagram showing a three-dimensional structure of an extrusion nozzle according to an embodiment of the present invention; Figure 2 A schematic diagram showing a bottom-up structure of an extrusion nozzle according to an embodiment of the present invention is shown; Figure 3A schematic diagram showing an exploded three-dimensional structure of an extrusion nozzle according to an embodiment of the present invention is shown; Figure 4 A schematic diagram showing an exploded bottom view structure of an extrusion nozzle according to an embodiment of the present invention is shown; Figure 5 A schematic diagram showing a main body exploded stereoscopic structure and a partial cross-sectional enlarged structure of an extrusion nozzle according to an embodiment of the present invention is shown; Figure 6 A schematic diagram showing a top view structure of a moving head of an extrusion nozzle according to an embodiment of the present invention is shown; Figure 7 A schematic diagram showing a partial cross-sectional three-dimensional structure of a moving head of an extrusion nozzle according to an embodiment of the present invention; Figure 8 A schematic diagram showing the three-dimensional structure of a moving plate of an extrusion nozzle according to an embodiment of the present invention is shown.

[0013] Reference numerals list 1. Main body; 101. Contact piece; 102. Through slot; 103. Force plate; 104. Pull rod; 105. Guide plate; 106. Guide slot; 107. Insulation piece; 108. Stopper; 2. Moving head; 201. Top slot; 202. Bottom piece; 203. External piece; 204. Auxiliary piece; 205. Bottom rod; 206. Slide slot; 3. Moving plate; 301. Scraping groove; 302. Collecting groove; 303. Guide plate; 304. Force-bearing head. DETAILED DESCRIPTION

[0014] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described in conjunction with the drawings of the specific embodiments of the present invention. Unless otherwise specified, the terms used herein have the usual meanings in the art. The same reference numerals in the drawings represent the same components.

[0015] Example: Please refer to Figures 1 to 8 : The present invention proposes a plastic catheter extrusion nozzle for medical device processing, comprising: a main body 1; the main body 1 is an extrusion nozzle body, the main body 1 is a cylindrical structure with a protrusion in the middle, a thread is arranged on the outer side of the top of the main body 1, so that the main body 1 can be freely installed and used through the thread, the inside of the main body 1 is a cylindrical structure with protrusions in the middle of both ends, so that a moving head 2 and a spring can be installed therein and move, and then automatically retract in advance, the main body 1 comprises: a stopper 108, the stopper 108 is an arc-shaped plate-shaped structure, a gap is arranged in the middle position of the stopper 108, so that air can quickly enter and discharge, so that the insulation component 107 can quickly enter the interior of the outer component 203, and at the same time, the air circulation in the outer component 203 can be avoided, so that the insulation effect is better, the stopper 108 is evenly arranged and fixed inside the arc groove of the insulation component 107; a moving head 2, the top of the moving head 2 is a cylindrical structure with a protrusion in the middle, which can be pulled inside the main body 1 and will not fall off, and the top of the moving head 2 is sleeved on the outer side to stop the material When discharging, the spring can push the moving head 2 to reset. The outer side of the bottom of the moving head 2 is an inclined structure. The inside of the moving head 2 is provided with a discharge pipe, so that the material can be extruded into a plastic conduit. The top of the moving head 2 and the spring are installed inside the main body 1. The top of the moving head 2 is provided with a top groove 201. The top groove 201 is an inclined structure, which can assist in gathering and discharging materials. At the same time, it can fit with the bottom of the force-bearing plate 103 to make the sealing better. A rectangular groove is provided on both sides of the top groove 201 for embedding the bottom of the pull rod 104. The force-bearing plate 103 is embedded in the top groove 201, and the pull rod 104 is embedded in the rectangular groove; the moving plate 3, the moving plate 3 is a U-shaped structure, so that the scraping groove 301 can scrape materials multiple times. The moving plate 3 is made of metal. The moving plate 3 is at the bottom of the moving head 2. A scraping groove 301 is provided on both sides of the inside and outside of the moving plate 3, respectively. The upper and lower sides of the outer ends of the scraping groove 301 are inclined structures, so that the scraped materials can be conveniently collected.

[0016] like Figure 5As shown, the main body 1 also includes: a contact piece 101, which is a hemispherical structure. The contact pieces 101 are evenly arranged in a ring shape and fixed inside the main body 1, and are used to contact the heat-insulating piece 107, thereby preventing the heat-insulating piece 107 from being displaced significantly. A through groove 102 is respectively provided on the top of both sides of the main body 1. The through groove 102 is a rectangular structure, and is used to allow the pull rod 104 to pass through, so that the pull rod 104 can be displaced under force and has space to move; the main body 1 also includes: a force-bearing plate 103, which is a conical structure and can fit with the top groove 201. The force-bearing plate 103 is installed inside the main body 1, and a pull rod 104 is respectively provided on both sides of the force-bearing plate 103. The pull rod 104 is a Z-shaped structure. The middle position of the pull rod 104 is inserted into the inside of the through groove 102, which can be used to limit the movement of the force-bearing plate 103 and prevent the force-bearing plate 103 from being continuously displaced; the main body 1 also includes: a guide plate 105, which is an L-shaped plate structure. There are two guide plates 105 in total. The two guide plates 105 are respectively fixed on the outer ends of the two pull rods 104, and are used to move together with the pull rods 104, and can also assist in pushing the insulation member 107 to move. A guide groove 106 is provided inside each guide plate 105. The guide groove 106 is an inclined structure, and the two ends of the guide groove 106 are arc structures, which are used to embed the force-bearing head 304, so that after the guide plate 105 stops moving, when the force-bearing head 304 continues to move downward with the moving plate 3, the lateral displacement of the moving plate 3 can be controlled; the main body 1 also includes: an insulation member 107, the insulation member 107 is a cylindrical structure, the insulation member 107 is installed on the outside of the main body 1, the interior of the insulation member 107 is in contact with the contact member 101, the material of the insulation member 107 is insulation material, and the interior of the insulation member 107 is provided with a cylindrical inner cavity arranged in a ring, which can enhance the insulation effect, and an arc groove is provided on both sides of the insulation member 107, so that air can circulate inside it.

[0017] like Figure 6 and Figure 7As shown, the moving head 2 further includes: a bottom piece 202, which is a conical structure, so that when the material is discharged, it can be diverted, so that the material can be discharged in a tubular shape, and the bottom piece 202 is installed at the inner bottom end of the moving head 2 through two triangular rods, so that the triangular rods can fix the bottom piece 202 and avoid the material discharge being affected; the moving head 2 also includes: an outer piece 203, the outer piece 203 is a circular structure, the interior of the outer piece 203 is a cylindrical structure with a raised bottom middle, which is used to be installed on the outside of the moving head 2 and can be embedded in the bottom of the thermal insulation member 107, the outer piece 203 is installed on the outside of the bottom of the moving head 2, and the bottom of the thermal insulation member 107 is inserted into the interior of the outer piece 203, Two auxiliary parts 204 are respectively provided on both sides of the outer part 203. The top of the auxiliary part 204 is composed of a wedge block and a round rod, and the bottom of the auxiliary part 204 is composed of a rectangular plate and a wedge block, which are used to increase the stability of the moving head 2 and the outer part 203, so that the moving head 2 will not rotate when moving downward; the moving head 2 also includes: a bottom rod 205, the bottom rod 205 is a rectangular structure, and there are two bottom rods 205, which are respectively fixed on both sides of the bottom of the moving head 2, and each bottom rod 205 is provided with a slide groove 206 inside, and the slide groove 206 is a rectangular structure, so that the two bottom rods 205 and the two slide grooves 206 can be installed on the moving plate 3, so that the moving plate 3 can be guided for displacement.

[0018] like Figure 8 As shown, the movable plate 3 also includes: a collecting groove 302, which is an arc-shaped structure. The collecting groove 302 is arranged inside the scraping groove 301, so that after the scraping groove 301 scrapes and collects the material, the material can flow into the inside of the collecting groove 302, and then the collected material can be stored; the movable plate 3 also includes: a guide plate 303, which is a rectangular structure. There are two guide plates 303, and the two guide plates 303 are respectively fixed on both sides of the top of the movable plate 3 to support the force-bearing head 304. When the force-bearing head 304 moves, the movable plate 3 can be driven to move together. A force-bearing head 304 is provided on the inner side of the top of each guide plate 303. The force-bearing head 304 is a cylindrical structure. The force-bearing head 304 is inserted into the inside of the guide groove 106 and can move inside the guide groove 106, thereby controlling the lateral movement of the movable plate 3, so that the scraping groove 301 can scrape and collect excess material.

[0019] Specific usage and function of this embodiment: In the present invention, when it is necessary to use this device, the top of the main body 1 can be manually controlled to be installed through a thread so that the main body 1 can be firmly connected. When the material is discharged, the material contacts the force-bearing plate 103 and the top of the moving head 2, so that the force-bearing plate 103 can move downward together with the moving head 2, so that the spring can be compressed, and the force-bearing plate 103 pushes the heat-insulating component 107 to move downward together. Then the force-bearing plate 103 is pulled to a limit position by the pull rod 104, so that the material is discharged downward through the outside of the force-bearing plate 103, so that the material impacts the moving head 2, and the moving head 2 continues to move downward. At this time, the material is initially discharged through the diversion of the bottom member 202. When the moving head 2 continues to move downward, the contact member 101 contacts the heat-insulating component 107, so that the heat-insulating component 107 cannot move downward. At the same time, the force-bearing head 304 slides inside the guide groove 106, so that the moving plate 3 can slide inside the slide groove 206, so that the scraping groove 301 can scrape the initially discharged material twice, so that the initially discharged material can be The material is collected and then enters the internal storage of the collecting tank 302, thereby preventing the initially discharged material from being deformed. At the same time, the heat preservation part 107 is located above the interior of the outer part 203, so that the internal bottom end of the outer part 203 can maintain a vacuum, so that the block 108 can seal the arc groove of the heat preservation part 107 to prevent air circulation, thereby making the heat preservation effect of the main body 1 and the outside of the moving head 2 better, and avoiding the solidification of the material when the discharge of the material is temporarily stopped. After stopping the material, the moving head 2 receives the spring power to reset, so that the force head 304 moves in the opposite direction inside the guide groove 106, so that the scraping groove 301 at the right end can scrape the material again, and avoid the material remaining at the bottom of the moving head 2. At the same time, the outer part 203 pushes the heat preservation part 107 to reset. At the same time, after the moving head 2 rises, it is embedded in the bottom of the force plate 103 through the top groove 201, so that the interior of the main body 1 cannot circulate, and then the material inside the main body 1 can be pushed upward and discharged, avoiding the blockage caused by the solidification of the material inside the main body 1, and then completing the extrusion molding of the plastic conduit.

[0020] Finally, it should be noted that when describing the position of each component and the matching relationship between them, the present invention usually takes one / a pair of components as an example. However, those skilled in the art should understand that such position, matching relationship, etc. are also applicable to other components / other pairs of components.

[0021] The above description is merely an exemplary embodiment of the present invention and is not intended to limit the protection scope of the present invention. The protection scope of the present invention is determined by the appended claims.

Claims

1. A plastic catheter extrusion nozzle for medical device processing, characterized in that: include: Subject (1); The main body (1) is an extrusion nozzle body, the top outer side of the main body (1) is provided with a thread, the interior of the main body (1) is a cylindrical structure with protrusions in the middle of both ends, and the main body (1) includes: a stopper (108), a gap is provided in the middle position of the stopper (108), and the stoppers (108) are evenly arranged and fixed inside the arc groove of the heat insulation component (107); A moving head (2), wherein a spring is sleeved on the outer side of the top of the moving head (2), the outer side of the bottom of the moving head (2) is an inclined structure, a discharge pipe is provided inside the moving head (2), the top of the moving head (2) and the spring are installed inside the main body (1), a top groove (201) is opened at the top of the moving head (2), a rectangular groove is provided on both sides of the top groove (201), a force plate (103) is embedded inside the top groove (201), and a pull rod (104) is embedded inside the rectangular groove; A moving plate (3) is located at the bottom of the moving head (2), and a scraping groove (301) is provided on both inner and outer sides of the moving plate (3), respectively, and the upper and lower sides of the outer end of the scraping groove (301) are inclined structures.

2. The plastic catheter extrusion nozzle for medical device processing as claimed in claim 1, characterized in that: The main body (1) further comprises: contact pieces (101), the contact pieces (101) being evenly arranged in a ring shape and fixed inside the main body (1), and a through slot (102) is respectively provided at the top of two sides of the main body (1).

3. The plastic catheter extrusion nozzle for medical device processing as claimed in claim 1, characterized in that: The main body (1) further comprises: a force-bearing plate (103), the force-bearing plate (103) being installed inside the main body (1), a pull rod (104) being provided on each side of the force-bearing plate (103), and the middle position of the pull rod (104) being inserted into the interior of the through slot (102).

4. The plastic catheter extrusion nozzle for medical device processing as claimed in claim 1, characterized in that: The main body (1) further comprises: a guide plate (105), the guide plate (105) being fixed to the outer end of the pull rod (104), and a guide groove (106) being provided inside the guide plate (105).

5. The plastic catheter extrusion nozzle for medical device processing as claimed in claim 1, characterized in that: The main body (1) further comprises: a heat-insulating member (107), the heat-insulating member (107) being mounted on the outside of the main body (1), the interior of the heat-insulating member (107) being in contact with the contact member (101), the interior of the heat-insulating member (107) being provided with cylindrical inner cavities arranged in a ring shape, and an arc-shaped groove being provided on both sides of the heat-insulating member (107).

6. The plastic catheter extrusion nozzle for medical device processing as claimed in claim 1, characterized in that: The moving head (2) further comprises: a bottom piece (202), wherein the bottom piece (202) is mounted on the inner bottom end of the moving head (2) via a triangular rod.

7. The plastic catheter extrusion nozzle for medical device processing as claimed in claim 1, characterized in that: The moving head (2) further comprises: an outer member (203), the interior of the outer member (203) being a cylindrical structure with a raised bottom middle portion, the outer member (203) being mounted on the outside of the bottom of the moving head (2), the bottom of the heat-insulating member (107) being inserted into the interior of the outer member (203), two auxiliary members (204) being respectively arranged on both sides of the outer member (203), the top of the auxiliary member (204) being composed of a wedge-shaped block and a round rod, and the bottom of the auxiliary member (204) being composed of a rectangular plate and a wedge-shaped block.

8. The plastic catheter extrusion nozzle for medical device processing as claimed in claim 1, characterized in that: The moving head (2) further comprises: a bottom rod (205), the bottom rod (205) being fixed to the bottom of the moving head (2), and a sliding groove (206) being provided inside the bottom rod (205).

9. The plastic catheter extrusion nozzle for medical device processing as claimed in claim 1, characterized in that: The movable plate (3) further comprises: a collecting groove (302), wherein the collecting groove (302) is arranged inside the scraping groove (301).

10. The plastic catheter extrusion nozzle for medical device processing according to claim 1, characterized in that: The movable plate (3) further comprises: a guide plate (303), the guide plate (303) being fixed to the top end of the movable plate (3), a force-bearing head (304) being provided on the inner side of the top end of the guide plate (303), and the force-bearing head (304) being inserted into the interior of the guide groove (106).

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