Catheter integrally-formed head end structure

Abstract

The utility model discloses a catheter integrated forming head end structure, which relates to the technical field of catheter head ends, and comprises a shell, the inner wall of the shell is rotatably connected with a two-way screw and fixedly connected with a vertical sliding rod, and the outer side of the two-way screw is sleeved with two sliding plates which are arranged in a mirror symmetry mode through threads. Through sliding holes are formed in the upper portions of the sliding plates, the sliding plates are arranged on the outer sides of the vertical sliding rods in a sliding and sleeving mode through the sliding holes, templates are arranged on the opposite sides of the two sliding plates, a conveying mechanism for injecting feed liquid into mold cavities of the templates is arranged in the shell, and two external threads in mirror symmetry are arranged on the outer side of the two-way screw. According to the guide pipe integrated forming head end structure, the two-way screw rod is arranged, so that the two mold plates can move oppositely or oppositely only by driving the two-way screw rod through single driving equipment, the convenience of demolding injection molding machining can be achieved, and the use cost of the guide pipe forming head end structure is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a catheter head end technical field, specifically a kind of catheter integrated forming head end structure. BACKGROUND

[0002] The current medical catheter head end forming device is mainly processed and manufactured by injection molding, and the injection molding structure is mainly composed of a mold and a clamping device. The two molds are closed, the blank is injected with raw materials in the mold cavity between the two molds and cooled to form, thereby completing the forming of the head end.

[0003] After a large number of searches, it was found that the utility model patent column: CN219276406U discloses a medical catheter head end forming device, which belongs to the technical field of forming devices and includes a bottom plate, a protective shell fixedly connected to the top of the bottom plate, a boss fixedly connected to the top of the protective shell, a heat dissipation assembly arranged in the boss, a feed pipe fixedly arranged on one side of the boss, a material guide hose fixedly connected to the bottom of the feed pipe, a first air cylinder fixedly connected to the inner wall of the other side of the protective shell, a first mold fixedly connected to the output end of the first air cylinder through a connecting plate, a first mold cavity formed in the outer wall of one side of the first mold, and a second air cylinder fixedly connected to the inner wall of one side of the protective shell.

[0004] In the above-mentioned scheme, although there are many benefits, but also has the following shortcomings: the device needs to be set up multiple drive equipment to drive two mold closing and separating, thereby increasing the injection molding cost of the device, and the device can only form the catheter head end, and cannot be integrated with the catheter, thus reducing the practicability of the device. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a catheter integrated forming head end structure to solve the problem of low practicability of the current catheter head end forming device in the prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a catheter integrated forming head end structure, which includes a shell, a double-direction screw rod rotatably connected to the inner wall of the shell, and a vertical sliding rod fixedly connected to the shell, a mirror-symmetrical two sliding plates threadedly sleeved on the outer side of the double-direction screw rod, a through sliding hole formed in the upper part of the sliding plate, the sliding plate slidably sleeved on the outer side of the vertical sliding rod through the sliding hole, a mold plate arranged on the side of each of the two sliding plates, a conveying mechanism arranged in the shell to inject liquid material into the mold cavity of the mold plate, and two outer threads symmetrically arranged on the outer side of the double-direction screw rod, and the two sliding plates are respectively threadedly sleeved on the two outer threads in the double-direction screw rod.

[0007] Preferably, a movable plate is provided on the inner wall of the housing, and a mold needle is installed on one side of the movable plate. The mold needle is located between two templates, and a mold cavity is provided between the two templates. The mold needle is located in the cavity of the mold cavity, and the outer wall of the mold needle does not contact the inner wall of the mold cavity.

[0008] Preferably, a one-way screw is rotatably connected to the inner wall of the housing, the movable plate is threaded onto the outside of the one-way screw, and the movable plate is slidably connected to the inner wall of the housing.

[0009] Preferably, a push plate is slidably sleeved on the outer side of the die pin, the push plate is installed on the inner wall of the housing, and one side of the push plate is in contact with one side of both die plates.

[0010] Preferably, a housing is installed on the inner wall of the shell, and a heat exchange chamber and two air chambers are provided inside the housing. The two air chambers are located on both sides of the heat exchange chamber, and a linear array of heat exchange tubes is fixedly connected between the two air chambers. The heat exchange tubes are located in the cavity of the heat exchange chamber, and a through-hole is opened on the opposite side of each of the two air chambers.

[0011] Preferably, ventilation openings are provided on both inner walls of the housing. The ventilation opening on the left side is connected to the opening on the left side of the housing, and a fan is installed inside the ventilation opening on the right side. Filter plates are installed at the slots of both ventilation openings.

[0012] Preferably, the slide plate has two protrusions on one side, the vertical cross-section of the protrusions is a convex-shaped cavity, the protrusions are fitted with protrusions in the protrusions, the vertical cross-section of the protrusions is a convex-shaped structure, the protrusions are fixedly connected to one side of the template, the slide plate has a through-hole limiting hole, the limiting hole is threaded with a limiting rod, the template has a slot at the corresponding position of the limiting hole, the movable end of the slot is inserted and connected to the movable end of the limiting rod.

[0013] Preferably, two servo motors are mounted on the housing, and the movable shafts of the two servo motors are fixedly connected to the ends of the bidirectional screw and the unidirectional screw, respectively. The servo motors are electrically connected to a power supply.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. By setting a bidirectional screw, this application can realize the relative or opposite movement of two templates by driving the bidirectional screw with a single drive device, thus realizing the convenience of demolding injection molding and reducing the use cost of the conduit molding head structure.

[0016] 2. By setting a mold needle, this application enables the injection molding device to perform integrated molding of the catheter and the catheter tip, thus effectively improving the practicality of the integrated molding tip structure of the catheter.

[0017] 3. This application sets up a box and installs heat exchange pipes inside the box. By injecting cooling water into the heat exchange chamber, the outside air will undergo heat exchange when passing through the heat exchange chamber, thereby reducing the airflow or air temperature of the injection molded part and thus improving the cooling effect and cooling efficiency of the injection molded part. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the integral molded head end structure of the catheter according to the present invention;

[0019] Figure 2 This is a three-dimensional cross-sectional view of the integral molded head end structure of the catheter according to the present invention.

[0020] Figure 3 This is a three-dimensional schematic diagram of the cooperation between the sliding plate and the template of the integrated catheter head structure of this utility model;

[0021] Figure 4 This is a three-dimensional schematic diagram of a template for an integrated catheter head structure according to the present invention.

[0022] The following are the labels in the diagram: 1. Shell; 2. Bidirectional screw; 3. Vertical slide bar; 4. Slide plate; 5. Template; 6. Conveying mechanism; 7. Unidirectional screw; 8. Moving plate; 9. Mold pin; 10. Push plate; 11. Box body; 12. Heat exchange chamber; 13. Air chamber; 14. Heat exchange tube; 15. Slot; 16. Vent; 17. Fan; 18. Groove; 19. Protruding rod; 20. Limiting rod; 21. Servo motor. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Figure 1 - Figure 4As shown, this utility model provides a technical solution for an integrated molding head end structure of a conduit, including a housing 1, a bidirectional screw 2 rotatably connected to the inner wall of the housing 1, and a vertical slide rod 3 fixedly connected to it. Two slide plates 4 are symmetrically arranged and threaded on the outer side of the bidirectional screw 2. The upper part of the slide plate 4 is provided with a through-hole, and the slide plate 4 is slidably sleeved on the outer side of the vertical slide rod 3 through the hole. A template 5 is provided on the opposite side of the two slide plates 4. A conveying mechanism 6 for injecting liquid into the mold cavity of the template 5 is provided inside the housing 1. Two external threads are symmetrically arranged on the outer side of the bidirectional screw 2, and the two slide plates 4 are respectively threaded on the two external threads in the bidirectional screw 2.

[0025] By rotating the bidirectional screw 2, the two templates 5 are moved away from or closer to each other.

[0026] like Figure 2 and Figure 3 As shown, a movable plate 8 is provided on the inner wall of the housing 1, and a mold needle 9 is installed on one side of the movable plate 8. The mold needle 9 is located between two templates 5. A mold cavity is provided between the two templates 5. The mold needle 9 is located in the cavity of the mold cavity, and the outer wall of the mold needle 9 does not contact the inner wall of the mold cavity.

[0027] The end of the die needle 9 is fitted with a conduit, and the end of the conduit is positioned between two templates 5. The two templates 5 are used to clamp the conduit. The template 5 has a cavity that is compatible with the conduit, and the conduit is located in the cavity. The cavity is connected to the die cavity, and the end of the conduit extends into the die cavity. This allows the conduit and the two templates 5 to cooperate and seal with each other. Then, the conduit is integrated by injecting raw material into the die cavity.

[0028] like Figure 1 - Figure 3 As shown, a one-way screw 7 is rotatably connected to the inner wall of the housing 1, and a movable plate 8 is threadedly sleeved on the outside of the one-way screw 7, and the movable plate 8 is slidably connected to the inner wall of the housing 1.

[0029] By rotating the one-way screw 7, the one-way screw 7 drives the moving plate 8 away from or towards the template 5, thereby using the moving plate 8 to drive the die pin 9 away from or towards the template 5.

[0030] like Figure 2 and Figure 3 As shown, a push plate 10 is slidably sleeved on the outer side of the mold needle 9. The push plate 10 is installed on the inner wall of the housing 1, and one side of the push plate 10 is in contact with one side of each of the two templates 5.

[0031] By moving the movable plate 8 away from the template 5, the mold pin 9 slides in the push plate 10, and the push plate 10 blocks the injection part on the mold pin 9, thereby separating the injection part from the mold pin 9 and thus quickly demolding.

[0032] likeFigure 1 and Figure 2 As shown, a box 11 is installed on the inner wall of the shell 1. The box 11 is provided with a heat exchange chamber 12 and two air chambers 13. The two air chambers 13 are located on both sides of the heat exchange chamber 12, and a linear array of heat exchange tubes 14 are fixedly connected between the two air chambers 13. The heat exchange tubes 14 are located in the cavity of the heat exchange chamber 12. A through-hole is opened on the opposite side of the two air chambers 13.

[0033] The heat exchange chamber 12 is filled with cooling water.

[0034] like Figure 2 As shown, ventilation openings 16 are provided on both inner walls of the housing 1. The left ventilation opening 16 is connected to the left opening of the box 11. A fan 17 is installed inside the right ventilation opening 16. Filter plates are installed at the slots of both ventilation openings 16.

[0035] The fan 17 is electrically connected to the power supply. The fan 17 generates suction to exhaust the air inside the housing 1 from the right vent 16, while the outside air enters the housing 1 from the left vent 16.

[0036] External air enters the left air chamber 13 of the housing 11 through the left vent 16, and then flows through the heat exchange pipe 14 into the right air chamber 13. It then exits into the housing 1 through the right opening and is then discharged through the right vent 16. When the air passes through the heat exchange chamber 12, it exchanges heat with the cooling water inside the heat exchange chamber 12, thereby cooling the air entering the housing 1 and achieving the effect of rapid cooling of the injection molded parts.

[0037] like Figure 2 and Figure 4 As shown, two protrusions 18 are provided on one side of the slide plate 4. The vertical cross section of the protrusions 18 is a convex-shaped cavity. A protrusion rod 19 is adapted inside the protrusions 18. The vertical cross section of the protrusion rod 19 is a convex-shaped structure. The protrusion rod 19 is fixedly connected to one side of the template 5. A through-type limiting hole is provided on one side of the slide plate 4. A limiting rod 20 is threadedly connected inside the limiting hole. A slot 15 is provided at the corresponding position of the template 5 relative to the limiting hole. The movable end of the slot 15 is inserted and connected to the movable end of the limiting rod 20.

[0038] By utilizing the cooperation of the protruding rod 19 and the protruding groove 18, the template 5 and the slide plate 4 can be assembled and disassembled, thus facilitating the replacement of different types of molds. When installing the template 5, simply insert the protruding rod 19 on the template 5 into the cavity of the protruding groove 18, then rotate the limiting rod 20 on the slide plate 4 and insert the movable end of the limiting rod 20 into the cavity of the slot 15.

[0039] like Figure 1 and Figure 2As shown, two servo motors 21 are mounted on the housing 1. The movable shafts of the two servo motors 21 are fixedly connected to the ends of the bidirectional screw 2 and the unidirectional screw 7, respectively. The servo motors 21 are electrically connected to the power supply.

[0040] The servo motor 21 drives the bidirectional screw 2 or the unidirectional screw 7 to rotate forward or in reverse.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A catheter integrated molding tip structure, comprising a shell (1), characterized in that: The inner wall of the housing (1) is rotatably connected to a bidirectional screw (2) and fixedly connected to a vertical slide rod (3). The outer side of the bidirectional screw (2) is threaded with two mirror-symmetrically arranged slide plates (4). The upper part of the slide plate (4) is provided with a through-hole, and the slide plate (4) is slidably sleeved on the outside of the vertical slide rod (3) through the hole. The two slide plates (4) are provided with templates (5) on opposite sides. The housing (1) is provided with a conveying mechanism (6) for injecting liquid into the mold cavity of the template (5).

2. The integrated molding tip structure of a catheter according to claim 1, characterized in that: A movable plate (8) is provided on the inner wall of the housing (1), and a mold needle (9) is installed on one side of the movable plate (8). The mold needle (9) is located between two templates (5).

3. The integrated molding tip structure of a catheter according to claim 2, characterized in that: A one-way screw (7) is rotatably connected to the inner wall of the housing (1), and the movable plate (8) is threaded onto the outside of the one-way screw (7), and the movable plate (8) is slidably connected to the inner wall of the housing (1).

4. The integrated molding tip structure of a catheter according to claim 2, characterized in that: A push plate (10) is slidably sleeved on the outer side of the die needle (9), and the push plate (10) is installed on the inner wall of the housing (1).

5. The integrated molding tip structure of a catheter according to claim 3, characterized in that: A housing (11) is installed on the inner wall of the housing (1). The housing (11) contains a heat exchange chamber (12) and two air chambers (13). The two air chambers (13) are located on both sides of the heat exchange chamber (12), and a linear array of heat exchange tubes (14) is fixedly connected between the two air chambers (13). The heat exchange tubes (14) are located in the cavity of the heat exchange chamber (12), and a through-hole is opened on the opposite side of the two air chambers (13).

6. The integrated molding tip structure of a catheter according to claim 4, characterized in that: Vents (16) are provided on both sides of the inner wall of the housing (1). The vent (16) on the left side is connected to the left opening of the box (11). A fan (17) is installed inside the vent (16) on the right side. Filter plates are installed at the slots of the two vents (16).

7. The integrated molding tip structure of a catheter according to claim 1, characterized in that: Two protrusions (18) are provided on one side of the slide plate (4). A protrusion rod (19) is adapted in the protrusion (18). The protrusion rod (19) is fixedly connected to one side of the template (5). A through-type limiting hole is provided on one side of the slide plate (4). A limiting rod (20) is threadedly connected in the limiting hole. A slot (15) is provided at the corresponding position of the template (5) relative to the limiting hole. The movable end of the slot (15) is inserted and connected to the movable end of the limiting rod (20).

8. The integrated molding tip structure of a catheter according to claim 1, characterized in that: Two servo motors (21) are installed on the housing (1). The movable shafts of the two servo motors (21) are fixedly connected to the ends of the bidirectional screw (2) and the unidirectional screw (7), respectively.

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