Medical three-way pipe manufacturing equipment capable of positioning sliding block insert pin

Abstract

The utility model provides medical three-way pipe manufacturing equipment capable of positioning slide block insert pins, which comprises a fixed mold cavity and a movable mold cavity, a medical three-way pipe injection molding space is arranged between the fixed mold cavity and the movable mold cavity, and a first slide block insert pin, a second slide block insert pin and a third slide block insert pin are arranged in the medical three-way pipe injection molding space. The first sliding block insert pin, the second sliding block insert pin and the third sliding block insert pin are matched with one another, the first sliding block insert pin is clamped and propped against the second sliding block insert pin and the third sliding block insert pin respectively, a first movable mold insert, a second movable mold insert and a third movable mold insert are arranged in the movable mold cavity, the first movable mold insert is in sliding connection with the first sliding block insert pin, and the second movable mold insert is in sliding connection with the third sliding block insert pin. The second movable mold insert is in sliding connection with the second sliding block insert pin; and the third movable mold insert is in sliding connection with the third sliding block insert pin. The insert pin structure has the beneficial effects that the position consistency and part interchangeability of the first slide block insert pin, the second slide block insert pin and the third slide block insert pin can be realized, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing equipment, and particularly relates to a medical three-way pipe manufacturing equipment capable of positioning a slide block insert pin. Background Art

[0002] A three-way pipe, that is, a pipe joint with three openings, is used in a pipe network for transporting liquids and gases. Due to different transported media, the materials of the three-way pipe are divided into cast iron, cast steel, cast copper, cast aluminum, plastic, glass, etc., and are widely used in various fields.

[0003] In the medical field, a medical three-way pipe is a commonly used connecting tool in the conveying pipeline in the medical field, mainly used for transporting liquids and gases, and even for temporarily dredging blood in the human body. There are many types of medical three-way pipes and they are widely used. For example, many medical devices in the medical field contain medical three-way pipes, and medical three-way pipes are used to transport liquid medicines, etc.

[0004] Among existing medical three-way pipes, there is a "卜"-shaped medical three-way pipe for transporting liquids. Currently, in the production process of this medical three-way pipe, since there is no positioning in the height direction between the slide block insert pins and the moving die inserts in the existing manufacturing equipment, there are machining errors in the heights between multiple slide block insert pins. As a result, there are deviations in the central positions during the insertion process of multiple slide block insert pins, which are prone to deformation and bending, affecting the product quality of the final medical three-way pipe. Moreover, the production process is not stable. After the slide block insert pins are produced for 48 hours, they are prone to wiping and burning, and it is necessary to frequently remove the die for maintenance. It is also very troublesome to repair and replace the slide block insert pins. It is necessary to remove them from the injection molding machine, and after the manufacturing technician uses a micrometer to correct the positions of multiple slide block insert pins, the mold can be installed. The maintenance is troublesome and takes a long time. Summary of the Utility Model

[0005] To solve the problems in the prior art, the utility model provides a medical three-way pipe manufacturing equipment capable of positioning slide block insert pins. By arranging a first moving die insert, a second moving die insert, and a third moving die insert that cooperate with each other in the medical three-way pipe manufacturing equipment capable of positioning slide block insert pins, the position consistency and part interchangeability of the first slide block insert pin, the second slide block insert pin, and the third slide block insert pin can be achieved, greatly improving the product quality and product competitiveness of the medical three-way pipe, and solving the problems that the machining errors in the heights between multiple slide block insert pins in the prior art medical three-way pipe production equipment affect the product quality of the medical three-way pipe and frequent die removal for maintenance is required during production.

[0006] The utility model provides a medical three-way tube manufacturing equipment capable of positioning a slider pin, comprising a fixed model cavity and a movable model cavity, a medical three-way tube injection molding space is arranged between the fixed model cavity and the movable model cavity, a first slider pin, a second slider pin and a third slider pin are arranged in the medical three-way tube injection molding space, the first slider pin, the second slider pin and the third slider pin cooperate with each other, the first slider pin is respectively engaged and abutted with the second slider pin and the third slider pin, a first movable mold insert, a second movable mold insert and a third movable mold insert are arranged in the movable model cavity, the first movable mold insert is slidably connected to the first slider pin, the second movable mold insert is slidably connected to the second slider pin, the third movable mold insert is slidably connected to the third slider pin, and the first slider pin, the second slider pin and the third slider pin can respectively maintain high consistency during injection molding production under the fixation of the first movable mold insert, the second movable mold insert and the third movable mold insert.

[0007] The utility model is further improved, the fixed model cavity is provided with a core-pulling cylinder and a hot injection nozzle, the movable model cavity is also provided with a first movable mold insert pin and a second movable mold insert pin, the top of the first movable mold insert pin and the top of the second movable mold insert pin are abutted against the bottom side of the first slider insert pin, the core-pulling cylinder is provided with a fixed model core, a driving device and an injection space pressure holding component, the driving device is drivingly connected to the fixed model core, the bottom of the fixed model core can abut against the upper side of the first slider insert pin, the hot injection nozzle is provided with a nozzle valve needle and the nozzle valve needle is connected to the injection space of the medical three-way tube, the first movable mold insert pin, the second movable mold insert pin and the fixed model core are adapted to each other and can squeeze and fix the first slider insert pin when the nozzle valve needle is injecting into the injection space of the medical three-way tube, and the injection space pressure holding component can allow the thermoplastic material to flow and fill the hole from which the fixed model core is pulled out when the driving device drives the fixed model core to leave the injection space of the medical three-way tube.

[0008] The utility model is further improved, the driving device includes a fixed component, a guide component, a first pneumatic driving space and a first air inlet channel, the fixed model core is fixedly connected to the fixed component, the guide component passes through the fixed component and is slidably connected to the fixed component, the first air inlet channel is communicated with the first pneumatic driving space, the first pneumatic driving space is drivingly connected to the fixed component, and the first pneumatic driving space can drive the fixed component to slide along the guide component when compressed air is injected into the first air inlet channel, thereby driving the fixed model core to slide and squeeze and fix the first slider pin with the first movable mold pin and the second movable mold pin.

[0009] The utility model is further improved, the injection space pressure maintaining component includes a second air pressure driving space and a second air inlet channel, the second air pressure driving space is connected to the second air pressure driving space, the second air pressure driving space is drivingly connected to the fixed component, the second air pressure driving space can drive the fixed component to slide along the guide component when compressed air is injected into the second air inlet channel, and then drive the fixed model core to slide away from the medical three-way pipe injection molding space, and at the same time, under the action of the injection molding machine screw pressure, the thermoplastic material flows to fill the hole from which the fixed model core is withdrawn.

[0010] The utility model is further improved, the fixing assembly includes a pad and a fixing plate, the pad, the fixing plate and the fixed model core are fixedly connected in sequence, the first pneumatic drive space is driven connected to the pad, and the second pneumatic drive space is driven connected to the fixing plate.

[0011] The utility model is further improved in that the guide assembly comprises a guide column and a guide sleeve, and the pad and the fixing plate are slidably connected to the guide column through the guide sleeve.

[0012] The utility model is further improved in that a first fixed mold insert and a second fixed mold insert are further provided in the fixed mold cavity, the first fixed mold insert abuts against the first slider insert pin, and the second fixed mold insert abuts against the second slider insert pin.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model provides a medical three-way tube manufacturing equipment capable of positioning a slider pin, by arranging a first movable mold insert, a second movable mold insert and a third movable mold insert that cooperate with each other in the medical three-way tube manufacturing equipment capable of positioning a slider pin, the first slider pin, the second slider pin and the third slider pin can be respectively fixed by the first movable mold insert, the second movable mold insert and the third movable mold insert during injection molding production to maintain a consistent height, and the height error between the multiple first slider pins, the second slider pins and the third slider pins can be reduced, thereby achieving the first movable mold insert. The positions of the first slider pin, the second slider pin and the third slider pin are consistent and the parts are interchangeable. The first slider pin, the second slider pin and the third slider pin can be directly molded and there is no need to calibrate the position with a micrometer. The concentricity of the produced medical tees is within 0.02mm, which meets the concentricity requirements of high-quality medical tees, greatly improves the product quality and competitiveness of medical tees, and solves the problem of machining errors in the heights between multiple slider pins in the prior art medical tee production equipment, which affects the product quality of the medical tees and requires frequent mold lowering and maintenance during production. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the solutions in the present application or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 This is a structural diagram of the medical three-way pipe manufacturing equipment capable of positioning the slider and inserting the needle of the utility model;

[0016] Figure 2 This is a structural diagram of the medical three-way tube manufacturing equipment capable of positioning the slider and inserting the needle of the utility model;

[0017] Figure 3 This is a structural diagram of a core-pulling cylinder of a medical three-way tube manufacturing device capable of positioning a slider and inserting a needle according to the utility model;

[0018] Figure 4 It is a cross-sectional structural diagram of the medical three-way pipe manufacturing equipment capable of positioning the slider and inserting the needle of the utility model;

[0019] Figure 5 It is a cross-sectional structural diagram of the injection molding space of the medical three-way tube manufacturing equipment capable of positioning the slider and inserting the needle of the utility model;

[0020] Figure 6 The cross-sectional structure diagram of the core-pulling cylinder of the manufacturing equipment for the high-quality medical three-way pipe of the present invention.

[0021] In the figure, 1-fixed model cavity, 11-core-pulling cylinder, 12-injection hot nozzle, 121-nozzle valve needle, 13-fixed model core, 14-driving device, 141-fixed component, 142-guide component, 143-first air pressure driving space, 144-first air inlet channel, 145-pad, 146-fixed plate, 147-guide column, 148-guide sleeve, 15-injection space pressure holding component, 151-second air pressure driving space, 152-second air inlet channel, 16-first fixed mold insert, 17-second fixed mold insert, 2-movable model cavity, 21-first movable mold insert, 22-second movable mold insert, 23-first movable mold insert, 24-second movable mold insert, 25-third movable mold insert, 3-medical three-way tube injection space, 31-first slider insert, 32-second slider insert, 33-third slider insert. DETAILED DESCRIPTION

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of this application; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit the application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0023] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0025] like Figure 1-6 As shown, the utility model provides a medical three-way tube manufacturing equipment capable of positioning a slider pin, comprising a fixed model cavity 1 and a movable model cavity 2, a medical three-way tube injection molding space 3 is provided between the fixed model cavity 1 and the movable model cavity 2, a first slider pin 31, a second slider pin 32 and a third slider pin 33 are provided in the medical three-way tube injection molding space 3, the first slider pin 31, the second slider pin 32 and the third slider pin 33 cooperate with each other, the first slider pin 31 is respectively engaged and abutted with the second slider pin 32 and the third slider pin 33, a first movable mold insert 23, a second movable mold insert 24 and a third movable mold insert 25 are provided in the movable model cavity 2, the first movable mold insert 23 is slidably connected to the first slider pin 31, the second movable mold insert 24 is slidably connected to the second slider pin 32, and the third movable mold insert 25 is slidably connected to the third slider pin 33. In the present embodiment, the first slider pin, the second slider pin and the third slider pin can maintain the same height during injection molding production under the fixation of the first movable mold insert, the second movable mold insert and the third movable mold insert respectively, and can reduce the height error between the multiple first slider pins, the second slider pins and the third slider pins, so as to achieve the position consistency and parts interchangeability of the first slider pin, the second slider pin and the third slider pin. The first slider pin, the second slider pin and the third slider pin can be directly molded without the need to calibrate the position with a micrometer. The concentricity of the produced medical tee is within 0.02 mm, which meets the concentricity requirements of high-quality medical tees, and greatly improves the product quality and competitiveness of the medical tees.

[0026] like Figure 3-5As shown, a core-pulling cylinder 11 and a hot injection nozzle 12 are provided in the fixed model cavity 1, and a first movable mold insert pin 21 and a second movable mold insert pin 22 are also provided in the movable model cavity 2. The top of the first movable mold insert pin 21 and the top of the second movable mold insert pin 22 abut against the bottom side of the first slider insert pin 31. A fixed model core 13, a driving device 14 and an injection space pressure holding component 15 are provided in the core-pulling cylinder 11. The driving device 14 is connected to the fixed model core 13, and the bottom of the fixed model core 13 can abut against the upper side of the first slider insert pin 31. A nozzle valve needle 121 is provided in the hot injection nozzle 12, and the nozzle valve needle 121 is connected to the injection space 3 of the medical three-way pipe. In this embodiment, the first movable mold insert pin, the second movable mold insert pin, and the fixed mold core are adapted to each other and can squeeze and fix the first slider insert pin when the nozzle valve needle is injecting into the injection molding space of the medical three-way tube. The injection space pressure maintaining component can allow the thermoplastic material to flow and fill the hole from which the fixed mold core is withdrawn when the driving device drives the fixed mold core to leave the injection molding space of the medical three-way tube, thereby eliminating the 1.5mm hole in the middle of the medical three-way tube and reducing the tolerance of the fine burr in the middle of the three-way tube to within 0.05mm, thereby greatly improving the product quality and competitiveness of the medical three-way tube.

[0027] like Figure 4-5As shown, the driving device 14 includes a fixing component 141, a guide component 142, a first air pressure driving space 143 and a first air inlet channel 144, the fixed model core 13 is fixedly connected to the fixing component 141, the guide component 142 passes through the fixing component 141 and is slidably connected to the fixing component 141, the first air inlet channel 144 is communicated with the first air pressure driving space 143, and the first air pressure driving space 143 is drivingly connected to the fixing component 141; the injection space pressure holding component 15 includes a second air pressure driving space 151 and a second air inlet channel 152, the second air inlet channel 152 is communicated with the second air pressure driving space 151, the second air pressure driving space 151 is drivingly connected to the fixing component 141, and the second air pressure driving space 151 can be When compressed air is injected into the second air inlet channel 152, the fixed component 141 is driven to slide along the guide component 142, thereby driving the fixed model core 13 to slide out of the medical three-way tube injection molding space 3, and at the same time, under the action of the injection molding machine screw pressure, the thermoplastic material flows to fill the hole from which the fixed model core 13 is withdrawn; the fixed component 141 includes a pad 145 and a fixed plate 146, the pad 145, the fixed plate 146, and the fixed model core 13 are fixedly connected in sequence, the first air pressure driving space 143 is drivingly connected to the pad 145, and the second air pressure driving space 151 is drivingly connected to the fixed plate 146; the guide component 142 includes a guide column 147 and a guide sleeve 148, the pad 145 and the fixed plate 146 are slidingly connected to the guide column 147 through the guide sleeve 148. In this embodiment, the first air pressure driven space can drive the fixed component to slide along the guide component when compressed air is injected into the first air inlet channel, and then drive the fixed model core to slide and squeeze and fix the first slider pin with the first movable mold pin and the second movable mold pin, so that the first slider pin fits tightly with the second movable mold pin and the fixed model core without loosening during injection molding, thereby reducing the tolerance of the small burr in the middle of the three-way pipe to within 0.05mm; the second air pressure driven space can drive the fixed component to slide along the guide component when compressed air is injected into the second air inlet channel, and then drive the fixed model core to slide out of the medical three-way pipe injection molding space, and at the same time, under the action of the injection molding machine screw pressure, the thermoplastic material flows to fill the hole from which the fixed model core is withdrawn, that is, the 1.5mm hole in the middle of the medical three-way pipe is eliminated, thereby improving the product quality and product competitiveness of the medical three-way pipe.

[0028] like Figure 4-5As shown, the fixed mold cavity 1 is also provided with a first fixed mold insert 16 and a second fixed mold insert 17. The first fixed mold insert 16 abuts against the first slider pin 31, and the second fixed mold insert 17 abuts against the second slider pin 32. In this embodiment, when the medical three-way tube manufacturing equipment capable of positioning the slider pin is working, compressed air is injected into the first air inlet channel to drive the pad plate and the fixed plate to slide along the guide column, thereby driving the fixed mold core installed on the fixed plate to move, so that the fixed mold core always touches and abuts against the first slider pin, so that the first movable mold pin and the second movable mold pin are also in tight contact with the first slider pin, fixing the first slider pin without loosening, thereby avoiding the displacement of the first slider pin caused by pressure during injection molding. At the same time, the first slider pin, the second slider pin, and the third slider pin are also fixed by the first movable mold insert, the second movable mold insert, and the third movable mold insert respectively to maintain the same height, and then the nozzle valve needle of the injection hot nozzle is opened for injection molding, and the thermoplastic material will not flow into The first slider pin and the first movable mold pin and the second movable mold pin avoid the medical three-way tube product burring at the second movable mold pin position; after the injection molding is completed, the nozzle valve needle of the hot injection nozzle is separated from the fixed model cavity, and the fixed model core and the first slider pin are still in abutment state, and compressed air is injected into the second air inlet channel to drive the pad and the fixed plate to slide along the guide column, thereby driving the fixed model core installed on the fixed plate to move, so that the fixed model core leaves the first slider pin and reaches a position flush with the fixed model cavity. Under the action of the injection molding machine screw pressure, the thermoplastic material will flow to fill the hole from which the fixed model core is extracted. This is the pressure holding stage. After the pressure holding stage, the nozzle valve needle of the hot injection nozzle enters a closed state, completing the entire high-quality medical three-way tube manufacturing operation.

[0029] As can be seen from the above, the utility model provides a medical three-way tube manufacturing equipment capable of positioning a slider pin. By arranging a first movable mold insert, a second movable mold insert and a third movable mold insert that cooperate with each other in the medical three-way tube manufacturing equipment capable of positioning a slider pin, the first slider pin, the second slider pin and the third slider pin can be respectively fixed by the first movable mold insert, the second movable mold insert and the third movable mold insert to maintain the same height during injection molding production, and the height error between the plurality of first slider pins, the second slider pins and the third slider pins can be reduced, so as to realize the first slider pins, the second slider pins and the third slider pins. The second slider pin and the third slider pin have position consistency and parts interchangeability, and the first slider pin, the second slider pin and the third slider pin can be directly molded, and there is no need to use a micrometer to calibrate the position. The concentricity of the produced medical tees is within 0.02mm, which meets the concentricity requirements of high-quality medical tees, greatly improves the product quality and competitiveness of medical tees, and solves the problem of machining errors in the heights between multiple slider pins in the prior art medical tee production equipment that affects the product quality of the medical tees and requires frequent mold lowering and maintenance during production.

[0030] The specific implementation methods described above are preferred implementation methods of the present utility model, and are not intended to limit the specific implementation scope of the present utility model. The scope of the present utility model includes but is not limited to the specific implementation methods. All equivalent changes made in accordance with the present utility model are within the protection scope of the present utility model.

Claims

1. A medical three-way tube manufacturing device capable of positioning a slider and inserting a needle, characterized in that: The invention comprises a fixed model cavity and a movable model cavity, a medical three-way tube injection molding space is arranged between the fixed model cavity and the movable model cavity, a first slider pin, a second slider pin and a third slider pin are arranged in the medical three-way tube injection molding space, the first slider pin, the second slider pin and the third slider pin cooperate with each other, the first slider pin is respectively engaged and abutted with the second slider pin and the third slider pin, a first movable mold insert, a second movable mold insert and a third movable mold insert are arranged in the movable model cavity, the first movable mold insert is slidably connected with the first slider pin, the second movable mold insert is slidably connected with the second slider pin, the third movable mold insert is slidably connected with the third slider pin, the first slider pin, the second slider pin and the third slider pin can respectively keep highly consistent during injection molding production under the fixation of the first movable mold insert, the second movable mold insert and the third movable mold insert.

2. The medical three-way tube manufacturing equipment capable of positioning a slider and inserting a needle according to claim 1, characterized in that: The fixed model cavity is provided with a core-pulling cylinder and a hot injection nozzle, the movable model cavity is also provided with a first movable mold pin and a second movable mold pin, the top of the first movable mold pin and the top of the second movable mold pin are abutted against the bottom side of the first slider pin, the core-pulling cylinder is provided with a fixed model core, a driving device and an injection space pressure holding component, the driving device is connected to the fixed model core, the bottom of the fixed model core can abut against the upper side of the first slider pin, the hot injection nozzle is provided with a nozzle valve needle and the nozzle valve needle is connected with the injection space of the medical three-way tube, the first movable mold pin, the second movable mold pin and the fixed model core are adapted to each other and can squeeze and fix the first slider pin when the nozzle valve needle is injected into the injection space of the medical three-way tube, and the injection space pressure holding component can allow the thermoplastic material to flow and fill the hole from which the fixed model core is pulled out when the driving device drives the fixed model core to leave the injection space of the medical three-way tube.

3. The medical three-way tube manufacturing equipment capable of positioning a slider and inserting a needle according to claim 2, characterized in that: The driving device includes a fixed component, a guide component, a first pneumatic driving space and a first air inlet channel, the fixed model core is fixedly connected to the fixed component, the guide component passes through the fixed component and is slidably connected to the fixed component, the first air inlet channel is communicated with the first pneumatic driving space, the first pneumatic driving space is drivingly connected to the fixed component, and the first pneumatic driving space can drive the fixed component to slide along the guide component when compressed air is injected into the first air inlet channel, thereby driving the fixed model core to slide and squeeze and fix the first slider pin with the first movable mold pin and the second movable mold pin.

4. The medical three-way tube manufacturing equipment capable of positioning a slider and inserting a needle according to claim 3, characterized in that: The injection space pressure-maintaining component includes a second air pressure driving space and a second air inlet channel, the second air pressure driving space is connected to the second air pressure driving space, and the second air pressure driving space is drivingly connected to the fixed component. The second air pressure driving space can drive the fixed component to slide along the guide component when compressed air is injected into the second air inlet channel, thereby driving the fixed model core to slide away from the medical three-way tube injection space, and at the same time, under the action of the injection molding machine screw pressure, the thermoplastic material flows to fill the hole from which the fixed model core is withdrawn.

5. The medical three-way tube manufacturing equipment capable of positioning a slider and inserting a needle according to claim 4, characterized in that: The fixing assembly includes a pad and a fixing plate. The pad, the fixing plate and the fixed model core are fixedly connected in sequence. The first air pressure driving space is drivingly connected to the pad, and the second air pressure driving space is drivingly connected to the fixing plate.

6. The medical three-way tube manufacturing equipment capable of positioning a slider and inserting a needle according to claim 5, characterized in that: The guide assembly comprises a guide column and a guide sleeve, and the pad and the fixing plate are slidably connected with the guide column through the guide sleeve.

7. The medical three-way tube manufacturing equipment capable of positioning a slider and inserting a needle according to claim 6, characterized in that: A first fixed mold insert and a second fixed mold insert are also provided in the fixed mold cavity. The first fixed mold insert abuts against the first slider insert pin, and the second fixed mold insert abuts against the second slider insert pin.

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