CN217916499U - Mould for medical three-way valve core - Google Patents

Abstract

The utility model discloses a medical three-way valve mould for case, including movable mould and cover half, the movable mould includes mould benevolence, the cover half includes mould benevolence, set up into runner and pipe on the movable mould, be provided with the dabber No. three on the mould benevolence, set up in the mould benevolence and take off the material thimble, dabber and No. two dabbers, still include the subassembly of loosing core and the subassembly of loosing core No. two, mould benevolence, take off the material thimble, a dabber, no. two dabbers and No. three dabbers constitute the die cavity jointly, the terminal cavity intercommunication with No. three dabbers of pipe, no. three dabber lower extreme is provided with pours the hole, make advance to water the position and be three-way valve bottom middle part. The advantages are that: through setting up the cavity and pouring the hole with the cavity connection at No. three dabbers for advancing of medical three-way valve case water the position and be bottom intermediate position, make the regional density in bottom of medical three-way valve case higher and density even, guarantee and reduce the influence of the shrink change in the density of sealing contact surface part and later stage to whole product gas tightness.

Description

Mould for medical three-way valve core

Technical Field

The utility model relates to a medical three-way valve case mould field specifically is a mould for medical three-way valve case.

Background

The valve core of the medical three-way valve is an important conducting valve in medical treatment. Generally, the medical device is matched with other medical devices for use, is used for intravenous injection or transfusion and blood transfusion of human bodies, and has wide application in the medical field. At present, the valve core of the existing medical three-way valve comprises a valve body and a valve body which is arranged in the valve body and can rotate, three interfaces are arranged on the valve body, three liquid passing holes are formed in the side portion of the valve core, the inner ends of the three liquid passing holes are communicated with each other, the positions of the three liquid passing holes are changed through the rotation of the valve core, the switching of a passage is realized, and the purpose of conveying different liquid medicines is achieved.

When the existing mould is used for manufacturing the valve core of the medical three-way valve, the injection molding is carried out by adopting a mode of pouring on the side part of the three-way valve, the density of the bottom of the molded valve core of the three-way valve is different due to the mode, and the bottom of the valve core is used together after the valve box is assembled, so that the deformation of the bottom of the valve core is easy to occur under the conditions of thermal expansion and cold contraction and flow pressure exceeding 200psi, the connection between the valve core and the valve box is not tight, and liquid leakage occurs.

In view of the above, it is necessary to provide a mold for a valve element of a medical three-way valve.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pair of medical three-way valve is mould for case, the effectual three-way valve case bottom density that has solved current mould and made is inconsistent, easily receives the external environment influence during the use, the condition of weeping appears.

The utility model adopts the technical proposal that:

the die for the valve core of the medical three-way valve comprises a movable die and a fixed die, wherein a plurality of guide pillars are arranged on the fixed die, and the movable die is connected with the guide pillars in a sliding mode. The movable mould includes movable mould benevolence the cover half includes the cover half benevolence that corresponds the setting with movable mould benevolence, be provided with on the movable mould be used for with advance the sprue that waters and with advance the pipe of sprue link-to-link switch-on, be provided with the No. three dabbers that have the cavity on the movable mould benevolence, slide in the cover half benevolence and be provided with and take off material thimble, a dabber and No. two dabbers, still including being used for driving the thimble board, the subassembly of loosing core and No. two dabbers that take off material thimble, a dabber, no. two dabbers and No. three dabbers and form the die cavity jointly, the terminal cavity intercommunication with No. three dabbers of pipe, no. three dabber lower extreme is provided with the hole of pouring that switches on cavity and die cavity for advance to water the position and be three-way valve bottom middle part.

Further, the method comprises the following steps: the movable mould benevolence and cover half benevolence quantity are two, every it is provided with two dabbers and two dabbers No. two to slide in the cover half benevolence, every be provided with two dabbers No. three in the movable mould benevolence for be used for the fashioned die cavity quantity of three-way valve to be four.

Further, the method comprises the following steps: two be provided with locating component between the movable mould benevolence, locating component is including setting up slider on the movable mould, setting on the cover half and two sliders of a relative slider symmetry, fixed setting be in on the cover half of No. two slider both sides tops and with No. two slider sliding connection's layering, be provided with the oblique spout towards the movable mould benevolence on No. two sliders, the spout inclines to cover half benevolence one side, a slider is through oblique spout and No. two slider sliding connection for two during the compound die No. two the slider offsets with two relative one sides of cover half benevolence respectively.

Further, the method comprises the following steps: set up spout and No. three spouts on the movable mould, a subassembly of loosing core includes No. three sliders and No. three taper pins with No. two spout sliding connection, no. three sliders are provided with towards the movable mould and to the No. three chutes of die cavity slope, no. three taper pins pass through No. three chutes and No. three slider sliding connection, no. two subassembly of loosing core include with No. three spout sliding connection's No. four sliders and No. four taper pins, no. four sliders are provided with towards the movable mould and to the No. four chutes of die cavity slope, no. four taper pins pass through No. four chutes and No. four slider sliding connection.

Further, the method comprises the following steps: and one ends of the second sliding groove and the third sliding groove, which are far away from the fixed die core, are respectively provided with a blocking piece, and the third sliding block and the fourth sliding block are respectively provided with a groove matched with the blocking piece.

Utility model's beneficial effect:

1. through set up the cavity and with the hole of pouring that the cavity is connected at No. three dabbers for advancing of medical three-way valve case water the position and be bottom intermediate position, make the regional density in bottom of medical three-way valve case higher and density even, lie in that the gas tightness is good after the external valve box equipment, guarantee with reduce the influence of the shrink change in the density and the later stage of sealed contact surface part to whole product gas tightness.

2. Through setting up a slider and two and slider sliding connection's No. two sliders, at the in-process of die sinking and compound die, can make movable mould and cover half touch the accurate same of butt joint in the reciprocating motion of making a round trip.

Drawings

Fig. 1 is an overall schematic view of a die for a valve element of a medical three-way valve according to an embodiment of the present application.

Fig. 2 is a schematic view of a fixed die and a guide tube, a third mandrel, and an inlet gate of a mold for a valve element of a medical three-way valve according to an embodiment of the present application.

Fig. 3 is a schematic view of a mandrel of a third mold for a valve element of a medical three-way valve according to an embodiment of the present application.

Fig. 4 is a front view of a mold for a valve element of a medical three-way valve according to an embodiment of the present application.

Fig. 5 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A in fig. 4.

Labeled as: 1. moving the mold; 2. fixing a mold; 4. a movable mould core; 5. fixing the mold core; 6. a third mandrel; 7. a material stripping thimble; 8. A first mandrel; 601. pouring holes; 9. a second mandrel; 10. a first core pulling assembly; 12. a second core pulling assembly; 14. a gate is arranged; 15. a conduit; 13. a positioning assembly; 16. a blocking member; 17. a groove; 18. an ejector plate; 131. a first sliding block; 132. a second sliding block; 133. layering; 101. a third slide block; 102. a third taper pin; 121. a fourth slider; 122. a fourth taper pin; 21. A second chute; 22. and a third sliding chute.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1, 2, 3, 4 and 5, an embodiment of the present application provides a mold for a valve element of a medical three-way valve, including a movable mold 1 and a fixed mold 2, wherein the fixed mold 2 is provided with a plurality of guide pillars, and the movable mold 1 is slidably connected to the guide pillars. The movable mould 1 includes movable mould benevolence 4, cover half 2 includes the fixed mould benevolence 5 that corresponds the setting with movable mould benevolence 4, be provided with on the movable mould 1 and be used for advancing the runner 14 that waters and with the pipe 15 of advancing runner 14 intercommunication, be provided with No. three dabbers 6 that have the cavity on the movable mould benevolence 4, slide on the fixed mould benevolence 5 and be provided with and take off material thimble 7, dabber 8 and No. two dabbers 9, still including being used for driving and take off thimble board 18, the subassembly 10 of loosing core and No. two subassembly 12 of loosing core that material thimble 7, a dabber 8 and No. two dabbers 9 moved. The movable mould core 4, the fixed mould core 5, the stripping thimble 7, the first mandrel 8, the second mandrel 9 and the third mandrel 6 form a cavity together. The tail end of the guide pipe 15 is communicated with a cavity of the third mandrel 6, and a pouring hole 601 for communicating the cavity with the cavity is formed in the lower end of the third mandrel 6, so that the pouring position is the middle of the bottom of the three-way valve.

During actual use, after the movable mold 1 and the fixed mold 2 are assembled, injection molding materials are poured from the injection gate 14, the injection molding materials flow through a cavity of the third mandrel 6 through the guide pipe 15, then flow to the cavity from the pouring hole 601 of the cavity, after the three-way valve core is molded, the movable mold 1 moves upwards to be separated from the fixed mold 2, and the ejector pins upwards eject the three-way valve core to complete material removal.

In the above-mentioned design, through set up the cavity and with the cavity connection pour hole 601 at No. three dabber 6 for the position of watering of advancing of medical three-way valve case is bottom intermediate position, makes the regional density in bottom of medical three-way valve case higher and density even, lies in that the gas tightness is good after the external valve box equipment, guarantees and reduces the influence of the shrink change in the density and the later stage of sealing contact surface part to whole product gas tightness.

Specifically, the method comprises the following steps: as shown in fig. 2, the number of the movable mold core 4 and the number of the fixed mold core 5 are two, each fixed mold core 5 is provided with two first mandrels 8 and two second mandrels 9 in a sliding manner, and each movable mold core 4 is provided with two third mandrels 6, so that the number of the cavities for forming the three-way valve is four.

In actual use, the four cavities simultaneously perform injection molding on the valve core of the medical three-way valve.

In the design, the four cavities are arranged, and the four medical three-way valve cores are formed at one time, so that the working efficiency can be effectively improved.

Specifically, the method comprises the following steps: as shown in fig. 2 and 5, a positioning assembly 13 is arranged between the two movable mold cores 4, the positioning assembly 13 includes a first slide block 131 arranged on the movable mold 1, two second slide blocks 132 arranged on the fixed mold 2 and symmetrical to the first slide block 131, and a pressing bar 133 fixedly arranged on the fixed mold 1 above two sides of the second slide block 132 and slidably connected with the second slide block 132, an inclined slide groove facing the movable mold cores 4 is arranged on the second slide block 132, the inclined slide groove inclines to one side of the fixed mold cores 5, and the first slide block 131 is slidably connected with the two second slide blocks 132 through the inclined slide groove, so that the two second slide blocks 132 respectively abut against one side of the two fixed mold cores 5 opposite to each other during mold closing.

In actual use, when the mold is closed, the first slide block 131 and the second slide block 132 slide, the first slide block 131 moves towards the fixed mold 2, and the second slide blocks 132 on both sides of the first slide block 131 move towards the first slide block 131. During demolding, the first slide block 131 moves upwards, so that the second slide block 132 moves towards one side of the fixed mold core 5.

In the above design, through setting up slider 131 and two and slider 132 No. two of slider 131 sliding connection, at the in-process of die sinking and compound die, can make movable mould 1 and cover half 2 touch the butt joint at the reciprocating motion accurate same that makes a round trip.

Specifically, the method comprises the following steps: as shown in fig. 1, 2 and 5, the movable mold 1 is provided with a second sliding groove 21 and a third sliding groove 22, the first core pulling assembly 10 comprises a third sliding block 101 and a third inclined pin 102 which are slidably connected with the second sliding groove 21, the third sliding block 101 is provided with a third inclined groove which is inclined towards the movable mold 1 and towards the cavity, the third inclined pin 102 is slidably connected with the third sliding block 101 through the third inclined groove, the second core pulling assembly 12 comprises a fourth sliding block 121 and a fourth inclined pin 122 which are slidably connected with the third sliding groove 22, the fourth sliding block 121 is provided with a fourth inclined groove which is inclined towards the movable mold 1 and towards the cavity, and the fourth inclined pin 122 is slidably connected with the fourth sliding block 121 through the fourth inclined groove.

During the actual use, during the compound die, movable mould 1 moves to cover half 2 direction, no. three taper pin 102 and No. four taper pin 122 move to cover half 2 one side, drive No. three slider 101 and No. four slider 121 to cover half benevolence 5 one side motion, during the die sinking, movable mould 1 moves to keeping away from cover half 2 one side, no. three taper pin 102 and No. four are cooperateed and are moved to keeping away from cover half 2 one side, drive No. three slider 101 and No. four slider 121 to keeping away from cover half benevolence 5 one side motion, accomplish No. one dabber 8 and No. two dabbers 9 and break away from the die cavity.

In the design, the first mandrel 8 and the second mandrel 9 can be automatically separated from the cavity by arranging the third coordination pin and the third sliding block 101 in sliding connection with the third coordination pin and the fourth sliding block 121 in sliding connection with the fourth coordination pin 122.

Specifically, the method comprises the following steps: as shown in fig. 1, fig. 2, fig. 3 and fig. 5, blocking members 16 are disposed at ends of the second sliding groove 21 and the third sliding groove 22, which are far away from the core insert 5, and grooves 17 adapted to the blocking members 16 are disposed on the third sliding block 101 and the fourth sliding block 121.

In actual use, the third slider 101 and the fourth slider 121 move towards the ends of the second sliding groove 21 and the third sliding groove 22 respectively in the demolding process, and finally the blocking piece 16 abuts against the groove 17.

In the design, the third slider 101 and the fourth slider 121 can be limited by arranging the blocking piece 16 and the groove 17 matched with the blocking piece 16.

In the following detailed description, it should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art from this detailed description.

Claims (5)

1. The utility model provides a mould for medical three-way valve case, includes movable mould (1) and cover half (2), be provided with a plurality of guide pillars on cover half (2), movable mould (1) and guide pillar sliding connection, its characterized in that: movable mould (1) include movable mould benevolence (4) cover half (2) include with fixed mould benevolence (5) that movable mould benevolence (4) set up, be provided with on movable mould (1) be used for with advance runner (14) of watering and with advance pipe (15) that runner (14) link up the switch-on, be provided with No. three dabbers (6) of cavity on movable mould benevolence (4), slide on fixed mould benevolence (5) and set up and take off material thimble (7), dabber (8) and No. two dabber (9), still including being used for driving a subassembly (10) of loosing core and No. two subassembly (12) of loosing core of dabber (8) and No. two dabber (9) motions, movable mould benevolence (4), fixed mould benevolence (5), take off material thimble (7), dabber (8), no. two dabber (9) and No. three dabber (6) and constitute the die cavity, pipe (15) end communicates with the cavity of No. three dabber (6), no. three dabber (6) lower extreme is provided with pouring hole (601) that switch on cavity and pouring for three-way valve position is the three-way valve pouring.

2. The mold for a valve core of a medical three-way valve according to claim 1, characterized in that: the movable mould benevolence (4) and cover half benevolence (5) quantity are two, every it is provided with No. two dabbers (8) and No. two dabbers (9) to slide in cover half benevolence (5), every be provided with No. two dabbers (6) No. three in movable mould benevolence (4) for be used for the fashioned die cavity quantity of three-way valve to be four.

3. The mold for a valve core of a medical three-way valve according to claim 1, characterized in that: two be provided with locating component (13) between movable mould benevolence (4), locating component (13) are including setting up slider (131) on movable mould (1), setting on cover half (2) and two slider (132) of slider (131) symmetry relatively, be provided with the oblique spout towards movable mould benevolence (4) on No. two slider (132), the spout inclines to cover half benevolence (5) lopsidedness to one side, slider (131) are through oblique spout and two slider (132) sliding connection No. two for two during the compound die No. two slider (132) offset with two relative one sides of cover half benevolence (5) respectively.

4. The mold for a valve core of a medical three-way valve according to claim 1, characterized in that: set up No. two spout (21) and No. three spout (22) on movable mould (1), loose core subassembly (10) include with No. two spout (21) sliding connection's No. three slider (101) and No. three taper pin (102), be provided with on No. three slider (101) towards movable mould (1) and to the No. three chute of die cavity slope, no. three taper pin (102) are through No. three chute and No. three slider (101) sliding connection, no. two loose core subassembly (12) are including No. four slider (121) and No. four taper pin (122) with No. three spout (22) sliding connection, no. four slider (121) are provided with towards movable mould (1) and to the No. four chute of die cavity slope, no. four taper pin (122) are through No. four chutes and No. four slider (121) sliding connection.

5. The mold for a valve core of a medical three-way valve according to claim 4, characterized in that: and blocking pieces (16) are arranged at one ends of the second sliding groove (21) and the third sliding groove (22) far away from the cavity insert (5), and grooves (17) matched with the blocking pieces (16) are arranged on the third sliding block (101) and the fourth sliding block (121).

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