CN111688246A

CN111688246A - Manufacturing method of infusion port tube and ultrasonic welding machine and die thereof

Info

Publication number: CN111688246A
Application number: CN202010404913.5A
Authority: CN
Inventors: 时宗宝; 吴志敏; 苗长权; 张路; 潘芳; 孙豪立
Original assignee: Ningbo Tianyi Medical Equipment Co ltd
Current assignee: Ningbo Tianyi Medical Equipment Co ltd
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-09-22

Abstract

The invention provides a manufacturing method of an infusion tube, an ultrasonic welding machine and an ultrasonic welding mould of a sealing end of an easy-to-fold handle, wherein the infusion tube comprises a body tube and the easy-to-fold handle, a semi-finished plastic piece of the infusion tube, the easy-to-fold handle of which is temporarily an open tube, is obtained by injection molding, and then the port of the open tube is welded and sealed by ultrasonic by adopting the ultrasonic welding machine provided with the ultrasonic welding mould special for the infusion tube, so that the open tube forms a hollow and sealed easy-to-fold handle, an upper mould and a lower mould of the ultrasonic welding mould are respectively provided with a plurality of mutually meshed convex edges and grooves, and the upper mould and the lower mould are skillfully and reasonably matched, so that the welding indentation structure of the infusion tube is meticulous and reasonable.

Description

Manufacturing method of infusion port tube and ultrasonic welding machine and die thereof

Technical Field

The invention belongs to the technical field of medical instruments, and relates to a manufacturing method of an infusion port tube and an ultrasonic welding machine and an ultrasonic welding mould for a sealing end of an easy-to-break handle of the infusion port tube.

Background

The soft package transfusion bag is matched with a transfusion device for use for many years, the structure of the soft package transfusion bag mainly comprises a bag body, a mouth pipe and a combined cover, wherein the bag body, the mouth pipe and the combined cover are made of non-PVC multi-layer co-extrusion films; once the combination cap is opened, the infusion operation must be performed immediately after the puncture with the infusion resin needle, so that the mouth tube is in contact with air only momentarily. The form of the oral siphon combined cover on the current market is various, and the mouth of pipe is relatively completely independent with the combined cover, welds sealedly after heating through heating device behind the first oral siphon and bag body coupling, perhaps directly inserts the connecting portion position of combined cover and applys external force suppression in the inlet tube and seals, also has combined cover and oral siphon to be integrative, directly can with the oral siphon welding to the bag body on. The combined cover is provided with a pull ring type, an easy folding type and the like, when the transfusion bottle is used for transfusion, after the pull ring is pulled off or the valve plate is pulled off to directly expose the rubber plug, the transfusion operation is carried out after the puncture of a transfusion resin needle. For example, chinese patent document CN106344407A discloses an infusion port tube with an easy-to-break handle, which includes a base portion and a hollow easy-to-break handle, wherein a main tube is disposed in the base portion, an upper end of the main tube extends out of an upper end surface of the base portion, and the easy-to-break handle is connected to the base portion at a root of the extended end of the main tube. However, the connection of the easy-to-break stem to the base at the root of the extended end of the main tube inevitably results in loss of the main tube by breaking the easy-to-break stem, and is also disadvantageous in terms of manufacturing. At present, most port welding parts of the easy-to-break handle of the existing transfusion port pipe adopt a hot melting welding process, and the port welding parts are in a flat state; the disadvantages are as follows: firstly, because the hot melting welding can generate pollution sources, the hot melting welding does not meet the current higher-grade sanitary requirements; secondly, the edge of the port welding part is sharp and hard, so that the infusion bag is easy to puncture. The frangible stems disclosed in CN106344407A are heated and extruded to form a flat sealing surface at the top end, apparently by a hot melt welding process. The port welding position of the easy-to-break handle of the existing transfusion port pipe adopts an ultrasonic welding process, and a single thick vertical bar is adopted for welding an indentation; because its welding indentation structure is reasonable inadequately, it is comparatively simple that the indentation structure is generally, closely knit inadequately, cause its shortcoming: firstly, welding is not compact enough and leakage is easy to occur; secondly, the edge of the port welding part is sharp and hard, so that the skin of a person is easily scratched and even the infusion bag is punctured; thirdly, the welding vertical bars are thick and hard, and the edge and corner flash phenomenon is serious. At present, no relevant documents disclose the method for manufacturing the transfusion tube with the easy-to-break handle and the ultrasonic welding machine and the ultrasonic welding mould for the sealing end of the easy-to-break handle in detail.

Disclosure of Invention

The invention aims to solve the technical problem of providing a method for manufacturing an infusion tube, an ultrasonic welding machine for a sealing end of an easy-to-fold handle and an ultrasonic welding mould thereof aiming at the technical current situation.

The manufacturing method of the transfusion mouth pipe adopts the technical scheme that:

a manufacturing method of an infusion opening tube comprises a body tube, wherein the upper end of the body tube is provided with an insertion tube for connecting an infusion bag, the outer wall of the body tube is provided with an annular reinforcing ring, the lower end of the body tube is provided with an extension tube for a resin needle of the infusion device to be inserted and penetrate through, an easy-to-fold handle extends downwards from the lower end face of the annular reinforcing ring and is sealed in a hollow mode, and the extension tube is wrapped in the easy-to-fold handle; a partition membrane is arranged in the insertion pipe; the manufacturing method of the infusion opening tube is characterized in that a semi-finished plastic piece of the infusion opening tube, of which the easy-to-break handle is temporarily an open tube, is obtained through injection molding, and then an ultrasonic welding machine provided with an ultrasonic welding mould special for the infusion opening tube is adopted to weld and seal the port of the open tube by ultrasonic waves, so that the open tube forms a hollow and sealed easy-to-break handle; an annular gap is formed between the outer wall of the extension pipe and the inner wall of the easy-to-break handle, and a sharp bottom groove is formed inwards from the outer wall between the annular reinforcing ring and the easy-to-break handle to form a breaking part with an ultra-thin wall.

The following is a further proposal of the manufacturing method of the transfusion tube of the invention:

the manufacturing method of the transfusion opening tube comprises the following steps:

step 1, injection molding, namely obtaining a semi-finished plastic piece of the infusion opening pipe, of which the easy-to-break handle is temporarily an open pipe, by adopting an injection molding machine provided with the injection molding mold special for the infusion opening pipe;

step 2, ultrasonic welding, namely, an ultrasonic welding machine provided with the ultrasonic welding die special for the infusion opening pipe is adopted, the outer end of the opening pipe is arranged between end contact surfaces of an upper die and a lower die of the ultrasonic welding die, the outer end of the opening pipe is welded by ultrasonic while the outer end of the opening pipe is pressed by the contact surfaces of the upper die and the lower die, so that a sealing end is formed at the outer end of the opening pipe, the opening pipe becomes a hollow sealed easy-to-fold handle, and an indentation area is formed at the outer end of the easy-to-fold handle;

step 3, performing damp-heat sterilization, namely placing the welded infusion opening pipe in a thermostat for damp-heat sterilization;

and 4, naturally cooling, namely naturally cooling the infusion port tube subjected to wet-heat sterilization to obtain the infusion port tube finished product with the easily-folded handle in a shriveled state.

A plurality of mutually meshed convex ribs are respectively arranged on the end contact surfaces of the upper die and the lower die of the ultrasonic welding die in the step 2, grooves are formed between the adjacent convex ribs, transverse grooves perpendicular to the plurality of convex ribs are formed in the proximal end parts of one end or two ends of the plurality of convex ribs on the contact surfaces of the upper die and the lower die, and the plurality of convex ribs on the contact surfaces of the upper die and the lower die are cut off to form a plurality of island-shaped convex ribs; when the upper die and the lower die are pressed and the outer end of the open pipe is welded, the convex edges and the grooves of the upper die and the lower die are meshed with each other, and a plurality of island convex edges of the upper die are embedded into the transverse concave grooves of the lower die or a plurality of island convex edges of the lower die are embedded into the transverse grooves of the upper die; the indentation area formed by the outer end of the welded easy-to-break handle is provided with a plurality of vertical bar indentation grooves which are arranged at intervals, and the indentation area also comprises 1 transverse bar indentation groove which cuts off a plurality of vertical bars.

The groove width of the vertical bar indentation groove is 0.5mm to 1 mm, the groove length of the vertical bar indentation groove is 3mm to 5mm, and the spacing distance between 2 adjacent indentation grooves is 0.5mm to 1 mm.

And after the step 2, trimming the sharp corner of the indentation area into a circular arc angle.

The temperature of the damp-heat sterilization in the step 3 is 121 +/-0.5 ℃, and the damp-heat sterilization time is 40 +/-0.5 min.

The infusion port is made of a PP + EVA + SEBS mixed material.

The technical scheme adopted by the ultrasonic welding die is as follows:

an ultrasonic welding mould for welding an infusion port comprises an upper mould and a lower mould, and is characterized in that a plurality of mutually meshed convex edges are respectively arranged on the end contact surfaces of the upper mould and the lower mould, a groove is formed between every two adjacent convex edges, and the convex edges and the grooves of the upper mould and the lower mould can be mutually meshed; the horizontal grooves perpendicular to the multiple ribs are formed in the lateral grooves of the multiple ribs on the contact surface of the upper die and the lower die, the multiple ribs on the contact surface of the upper die and the lower die are cut to form multiple island ribs, and the multiple island ribs of the upper die can be embedded into the horizontal grooves of the lower die or the multiple island ribs of the lower die can be embedded into the horizontal grooves of the upper die.

The following is a further scheme of the ultrasonic welding die of the invention:

the upper die comprises a cylindrical die holder, the cylindrical die holder extends downwards to form a square column die head, and the lower end of the square column die head is provided with an end contact surface of the upper die; the lower die comprises a square die holder, a boss is arranged on the square die holder, the upper end of the boss is provided with a contact surface at the end part of the lower die, and mounting holes are respectively formed in two side tables of the square die holder.

The technical scheme adopted by the ultrasonic welding machine is as follows:

the utility model provides an ultrasonic welding machine for welding infusion oral siphon port, includes frame, stand, aircraft nose, supersonic generator and above the ultrasonic welding mould, frame and aircraft nose are connected to the aircraft nose, and supersonic generator sets up at the aircraft nose or sets up separately, and the aircraft nose sets up the cylinder, stretches out the post and stretches out from the aircraft nose downwards, stretches out the post and can reciprocate by the cylinder drive, go up mould fixed mounting and stretch out post lower extreme, lower mould fixed mounting is on the frame.

The upper die and the lower die of the ultrasonic welding die are simple in structure, convenient to manufacture and operate, and the contact surface structures of the upper die and the lower die are skillfully and reasonably matched. The welding indentation structure of the infusion opening pipe is delicate and reasonable, the welding is dense, and no leakage phenomenon is ensured; the edge corner of the port welding part is softer, and the sharp edge corner is trimmed into an arc corner, so that the skin of a person in contact can not be scratched, the infusion bag can not be punctured, and the edge corner flash phenomenon is also eliminated.

Drawings

FIG. 1 is a front view of an infusion port tube according to the present invention.

FIG. 2 is a side view of the infusion port tube of the present invention.

FIG. 3 is a cross-sectional view of the infusion port tube of the present invention.

FIG. 4 is a schematic view showing the state where the easy-to-break handle of the transfusion tube is separated from the main body tube.

FIG. 5 is a schematic view showing the steps of the manufacturing method of the transfusion tube of the present invention.

FIG. 6 is an enlarged view of the indentation area at the outer end of the easy-to-detach handle.

FIG. 7 is a schematic cross-sectional view of an indentation area at the outer end of the easy-to-detach handle.

FIG. 8 is a longitudinal sectional view of the indentation area at the outer end of the easy-to-detach handle.

FIG. 9 is a front view of a semi-finished plastic part of an infusion port tube with an easy-to-break handle temporarily serving as an open tube.

FIG. 10 is a schematic cross-sectional view of a plastic part of a transfusion tube semi-finished product, wherein the easy-to-break handle is temporarily an open tube.

FIG. 11 is a front view of the ultrasonically welded infusion port tube.

FIG. 12 is a side view of the ultrasonically welded infusion port tube.

Fig. 13 is a schematic view of an ultrasonic welding die.

FIG. 14 is a front view of the mating relationship between the upper and lower dies of the ultrasonic welding die.

FIG. 15 is a schematic side view of the mating relationship between the upper and lower dies of the ultrasonic welding die.

FIG. 16 is a schematic view of an ultrasonic welding machine.

Fig. 17 is a schematic view of an infusion bag equipped with an infusion port tube of the present invention.

Fig. 18 is a schematic view showing a use of an infusion bag equipped with an infusion port tube of the present invention.

Reference numbers in the figures: 1. a transfusion port tube; 2. a body tube; 3. an insertion tube; 4. an annular reinforcing ring; 5. an extension tube; 6. an easily-folded handle; 7. a partition membrane; 8. an open tube; 9. an upper die; 10. a lower die; 11. a rib; 12. a groove; 13. a transverse groove; 14. island ribs; 15. vertical bar indentation grooves; 16. a transverse strip indentation groove; 17. a cylindrical die holder; 18. a square column die head; 19. a square die holder; 20. a boss; 21. mounting holes; 22. an indentation area; 23. a machine base; 24. a column; 25. a machine head; 26. extending the column; 27. a retainer ring; 28. an infusion bag; 29. an outlet pipe; 30. a soft sealing plug; 31. an infusion set; 32. a resin needle.

Detailed Description

The following describes a specific embodiment of the present invention, as shown in fig. 1 to 18.

The infusion port tube 1 comprises a body tube 2, an insertion tube 3 used for connecting an infusion bag is arranged at the upper end of the body tube 2, a partition membrane 7 is arranged in the insertion tube 3, and a resin needle of an infusion apparatus pierces the partition membrane 7 when in use; the insertion tube 3 is provided with a collar 27 on the outside so that it is inserted as far as the collar 27. The outer wall of the body tube 2 is provided with an annular reinforcing ring 4, the lower end of the body tube 2 is provided with a section of extension tube 5 which is inserted into and passed through the resin needle of the infusion device, an easy-to-fold handle 6 is arranged from the lower end surface of the annular reinforcing ring 4 in a downward extending mode, the easy-to-fold handle 6 is hollow and sealed, and the extension tube 5 is wrapped in the extension tube. An annular gap 33 is formed between the outer wall of the extension tube 5 and the inner wall of the easy-to-break handle 6, and a sharp bottom groove 34 is formed between the annular reinforcing ring 4 and the easy-to-break handle 6 from the outer wall to the inside to form a breaking part 35 with an ultra-thin wall.

The manufacturing method of the infusion opening tube 1 is characterized in that an injection molding mold is adopted firstly, and a semi-finished plastic part of the infusion opening tube 1 with the easy-to-break handle 6 serving as the opening tube 8 is obtained through injection molding, as shown in figures 9 and 10. Then an ultrasonic welding machine provided with an ultrasonic welding die special for the transfusion port pipe 1 is adopted, as shown in fig. 16. The port of the open pipe 8 is closed by ultrasonic welding to form the open pipe 8 into the hollow sealed easy-to-detach handle 6, as shown in fig. 11 and 12.

The manufacturing method of the transfusion tube 1 of the invention, as shown in fig. 5, comprises the following steps:

step 1, injection molding, namely, obtaining a semi-finished plastic part of the infusion opening pipe 1, wherein the easy-to-break handle 6 is temporarily an open pipe 8, by adopting an injection molding machine provided with a special injection molding mold for the infusion opening pipe 1, and the semi-finished plastic part is shown in figures 9 and 10. The infusion port is made of PP + EVA + SEBS mixed material.

And 2, carrying out ultrasonic welding, namely, adopting an ultrasonic welding machine provided with an ultrasonic welding die special for the transfusion opening pipe 1, as shown in figure 16, placing the outer end of the opening pipe 8 between end contact surfaces of an upper die 9 and a lower die 10 of the ultrasonic welding die, and carrying out ultrasonic welding on the outer end of the opening pipe 8 while pressing the outer end of the opening pipe 8 by the contact surfaces of the upper die 9 and the lower die 10 so as to form a sealing end at the outer end of the opening pipe 8, wherein the opening pipe 8 is changed into a hollow sealed easy-to-fold handle 6, and an indentation area 22 is formed at the outer end of the easy-to-. The ultrasonically welded infusion tube is shown in fig. 11 and 12.

And 3, performing moist heat sterilization, namely placing the welded infusion opening pipe 1 in a thermostat for moist heat sterilization. The temperature of the damp-heat sterilization is 121 +/-0.5 ℃, and the damp-heat sterilization time is 40 +/-0.5 min.

And 4, naturally cooling, namely naturally cooling the infusion port tube 1 subjected to wet-heat sterilization to obtain a finished infusion port tube 1 with the easily-folded handle 6 in a dry-shriveled state.

The ultrasonic welding die for welding the port of the infusion port tube 1 in the step 2 includes an upper die 9 and a lower die 10 as shown in fig. 13. The upper die 9 comprises a cylindrical die holder 17, the cylindrical die holder 17 extends downwards to form a square column die head 18, and the lower end of the square column die head 18 is provided with an end contact surface of the upper die 9; the lower die 10 comprises a square die holder 19, a boss 20 is arranged on the square die holder 19, the upper end of the boss 20 is provided with an end contact surface of the lower die 10, and two side tables of the square die holder 19 are respectively provided with a mounting hole 21. The contact surfaces of the end parts of the upper die 9 and the lower die 10 are respectively provided with a plurality of mutually meshed ribs 11, grooves 12 are formed between the adjacent ribs 11, and the ribs 11 and the grooves 12 of the upper die 9 and the lower die 10 can be mutually meshed; the near end parts of one or two ends of the multiple convex ridges 11 on the contact surfaces of the upper die 9 and the lower die 10 are provided with transverse grooves 13 perpendicular to the multiple convex ridges 11, the multiple convex ridges 11 on the contact surfaces of the upper die 9 and the lower die 10 are cut off to form multiple island convex ridges 14, and the multiple island convex ridges 14 of the upper die 9 can be embedded into the transverse grooves 13 of the lower die 10 or the multiple island convex ridges 14 of the lower die 10 can be embedded into the transverse grooves 13 of the upper die 9.

The ultrasonic welding machine for welding the port of the infusion port tube 1 in the step 2 comprises a machine base 23, an upright post 24, a machine head 25, an ultrasonic generator and the ultrasonic welding die, wherein the machine head 25 is connected with the machine base 23 and the machine head 25, the ultrasonic generator is arranged at the machine head 25 or is arranged additionally, the machine head 25 is provided with an air cylinder, an extension column 26 extends downwards from the machine head 25, the extension column 26 is driven by the air cylinder to move up and down, an upper die 9 is fixedly arranged at the lower end of the extension column 26, and a lower die 10 is fixedly arranged on the machine base 23 through a mounting hole 21 of the lower die.

In step 2, because the contact surfaces of the end parts of the upper die 9 and the lower die 10 of the ultrasonic welding die are respectively provided with a plurality of mutually meshed ribs 11, a groove 12 is formed between adjacent ribs 11, and a transverse groove 13 perpendicular to the plurality of ribs 11 is formed at the proximal end part of one end or two ends of the plurality of ribs 11 on the contact surfaces of the upper die 9 and the lower die 10 to cut off the plurality of ribs 11 on the contact surfaces of the upper die 9 and the lower die 10 to form a plurality of island ribs 14. When the upper and lower dies 9 and 10 press and weld the outer ends of the open pipe 8, as shown in fig. 14 and 15, the ribs 11 and grooves 12 of the upper and lower dies 9 and 10 are engaged with each other, and the plurality of island ribs 14 of the upper die 9 are fitted into the lateral grooves 13 of the lower die 10 or the plurality of island ribs 14 of the lower die 10 are fitted into the lateral grooves 13 of the upper die 9. The indentation area 22 formed at the outer end of the welded easy-to-break handle 6, as shown in fig. 6, 7, 8, has a plurality of vertical bar indentation grooves 15 arranged at intervals, and also includes 1 horizontal bar indentation groove 16 cutting off a plurality of vertical bars. The groove width a of the vertical indentation groove 15 is 0.5mm to 1 mm, the groove length b of the vertical indentation groove 15 is 3mm to 5mm, the spacing distance c between 2 adjacent indentation grooves is 0.5mm to 1 mm, and the groove width d of the transverse indentation groove 16 is 0.5mm to 1 mm. Therefore, the corners of the welding part of the obtained infusion port pipe port are relatively soft. In addition, in order to remove the sharp corner of the indentation area 22 shown in fig. 11 after the ultrasonic welding in step 2, after step 2, the method further includes trimming the sharp corner of the indentation area 22 shown in fig. 11 to the arc corner shown in fig. 1.

The manufacturing method of the transfusion opening pipe has the advantages that the welding indentation structure is fine and reasonable, the welding is dense, and the leakage phenomenon is avoided; the edge corner of the port welding part is softer, and the sharp edge corner is trimmed into an arc corner, so that the skin of a person in contact with the port welding part can not be scratched, the infusion bag can not be punctured, and meanwhile, the edge corner flash phenomenon is avoided.

As shown in fig. 17, 2 outlet pipes 29 are inserted into the opening side of the flexible-packaged infusion bag 28, after the infusion bag 28 is filled with the liquid medicine, the insertion pipe 3 of the infusion port tube of the present invention is inserted into one of the outlet pipes 29 until the check ring 27 blocks the insertion pipe, the easy-to-detach handle 6 is exposed, and the other outlet pipe 29 is connected with the flexible sealing plug 30, so that the liquid medicine is in a sealed state.

In use, as shown in fig. 18, the medical staff prepares the infusion set 31, breaks the easy-to-break handle 6 off from the breaking part 35 to expose the extension tube 5, immediately inserts the resin needle 32 of the infusion set 31 into the extension tube 5 which passes through the resin needle, and pierces the partition membrane 7 to connect the medical solution. Thus, the extension tube 5 only contacts with air instantly, and the liquid medicine is not polluted by air.

All references to left, right, up, down, front, rear, etc. in this specification are to be understood as being relative to the drawings attached to this specification, for convenience of description, and not as limiting the invention.

Claims

1. A manufacturing method of an infusion opening pipe (1) comprises the main body pipe (2), wherein a section of an insertion pipe (3) used for being connected with an infusion bag is arranged at the upper end of the main body pipe (2), an annular reinforcing ring (4) is arranged on the outer wall of the main body pipe (2), a section of an extension pipe (5) used for a resin needle of an infusion device to be inserted and penetrate is arranged at the lower end of the main body pipe (2), an easy-to-break handle (6) extends downwards from the lower end face of the annular reinforcing ring (4), the easy-to-break handle (6) is sealed in a hollow mode, and the extension pipe (5) is wrapped in the easy-to-break handle (; a partition membrane (7) is arranged in the inserting pipe (3); the manufacturing method of the infusion opening pipe (1) is characterized in that a semi-finished plastic part of the infusion opening pipe (1) with an easily-folded handle (6) serving as an open pipe (8) is obtained through injection molding, and then an ultrasonic welding machine provided with a special ultrasonic welding mould for the infusion opening pipe (1) is adopted to weld and seal the port of the open pipe (8) through ultrasonic waves, so that the open pipe (8) forms the hollow sealed easily-folded handle (6); an annular gap (33) is formed between the outer wall of the extension tube (5) and the inner wall of the easy-to-break handle (6), and a sharp bottom groove (34) is formed between the annular reinforcing ring (4) and the easy-to-break handle (6) from the outer wall inwards to form a breaking part (35) with an extremely thin wall.

2. A method of manufacturing an infusion port tube (1) according to claim 1, characterized by comprising the steps of:

step 1, injection molding, namely obtaining a semi-finished plastic part of the infusion opening pipe (1) with an easy-to-break handle (6) as an opening pipe (8) temporarily by adopting an injection molding machine provided with a special injection molding mold for the infusion opening pipe (1);

step 2, ultrasonic welding, namely, an ultrasonic welding machine provided with an ultrasonic welding mould special for the transfusion opening pipe (1) is adopted, the outer end of the opening pipe (8) is arranged between end contact surfaces of an upper mould (9) and a lower mould (10) of the ultrasonic welding mould, the outer end of the opening pipe (8) is welded by ultrasonic while the contact surfaces of the upper mould (9) and the lower mould (10) press the outer end of the opening pipe (8), so that a sealing end is formed at the outer end of the opening pipe (8), the opening pipe (8) becomes a hollow sealed easy-to-fold handle (6), and an indentation area (22) is formed at the outer end of the easy-to-fold handle (6);

step 3, performing moist heat sterilization, namely placing the welded infusion opening pipe (1) in a thermostat for moist heat sterilization;

and 4, naturally cooling, namely naturally cooling the infusion port pipe (1) subjected to wet-heat sterilization to obtain a finished infusion port pipe (1) with the easily-folded handle (6) in a shriveled state.

3. The method for manufacturing the infusion port tube (1) according to claim 2, wherein the contact surfaces of the ends of the upper mold (9) and the lower mold (10) of the ultrasonic welding mold in the step 2 are respectively provided with a plurality of mutually engageable ribs (11), a groove (12) is formed between the adjacent ribs (11), a transverse groove (13) perpendicular to the ribs (11) is formed at one end or the near end of each of the plurality of ribs (11) on the contact surfaces of the upper mold (9) and the lower mold (10) to cut off the plurality of ribs (11) on the contact surfaces of the upper mold (9) and the lower mold (10) to form a plurality of island ribs (14); when the upper die (9) and the lower die (10) press and weld the outer end of the open pipe (8), the ribs (11) and the grooves (12) of the upper die (9) and the lower die (10) are meshed with each other, and a plurality of island ribs (14) of the upper die (9) are embedded into the transverse grooves (13) of the lower die (10) or a plurality of island ribs (14) of the lower die (10) are embedded into the transverse grooves (13) of the upper die (9); an indentation area (22) formed at the outer end of the easy-to-break handle (6) after welding is provided with a plurality of vertical bar indentation grooves (15) which are arranged at intervals, and the easy-to-break handle also comprises 1 transverse bar indentation groove (16) which cuts off a plurality of vertical bars.

4. The method for manufacturing an infusion port tube (1) according to claim 3, wherein the groove width of the vertical bar indentation groove (15) is 0.5mm to 1 mm, the groove length of the vertical bar indentation groove (15) is 3mm to 5mm, and the spacing distance between 2 adjacent indentation grooves is also 0.5mm to 1 mm.

5. The method for manufacturing an infusion port tube (1) according to claim 3, further comprising trimming sharp corners of the indentation area (22) into rounded corners after the step 2.

6. The method for producing an infusion port tube (1) according to claim 2, wherein the temperature of the moist heat sterilization in the step 3 is 121 ± 0.5 °, and the moist heat sterilization time is 40 ± 0.5 min.

7. The method for manufacturing an infusion port tube (1) according to claim 1, wherein the infusion port is made of PP + EVA + SEBS mixed material.

8. An ultrasonic welding die for welding a port of a transfusion tube (1) comprises an upper die (9) and a lower die (10), and is characterized in that a plurality of mutually meshed convex ribs (11) are respectively arranged on end contact surfaces of the upper die (9) and the lower die (10), a groove (12) is formed between every two adjacent convex ribs (11), and the convex ribs (11) and the grooves (12) of the upper die (9) and the lower die (10) can be mutually meshed; the horizontal grooves (13) perpendicular to the multiple ribs (11) are formed in the contact surfaces of the upper die (9) and the lower die (10), the multiple ribs (11) are cut off on the contact surfaces of the upper die (9) and the lower die (10) to form multiple island ribs (14), and the multiple island ribs (14) of the upper die (9) can be embedded into the horizontal grooves (13) of the lower die (10) or the multiple island ribs (14) of the lower die (10) can be embedded into the horizontal grooves (13) of the upper die (9).

9. The ultrasonic welding die of claim 7, wherein the upper die (9) comprises a cylindrical die holder (17), the cylindrical die holder (17) extends downwards to form a square column die head (18), and the lower end of the square column die head (18) is provided with an end contact surface of the upper die (9); the lower die (10) comprises a square die holder (19), a boss (20) is arranged on the square die holder (19), the upper end of the boss (20) is provided with a contact surface of the end part of the lower die (10), and two side tables of the square die holder (19) are respectively provided with a mounting hole (21).

10. An ultrasonic welding machine for welding the port of a transfusion port pipe (1) comprises a machine base (23), an upright post (24), a machine head (25), an ultrasonic generator and the ultrasonic welding die as claimed in claim 7 or 8, wherein the machine head (25) is connected with the machine base (23) and the machine head (25), the ultrasonic generator is arranged at the machine head (25) or is arranged additionally, the machine head (25) is provided with a cylinder, an extension column (26) extends downwards from the machine head (25), the extension column (26) can move up and down under the drive of the cylinder, an upper die (9) is fixedly arranged at the lower end of the extension column (26), and a lower die (10) is fixedly arranged on the machine base (23).