CN219153543U - Insert injection molding sliding block structure of puncture needle, mold and injection molding machine - Google Patents

Abstract

The utility model discloses an insert injection molding sliding block structure of a puncture needle, a mold and an injection molding machine, wherein the insert injection molding sliding block structure of the puncture needle comprises a movable mold core and a sliding block seat, the sliding block seat is provided with an inserting column, an insert can be placed on the inserting column, the movable mold core is provided with a slot, and the inserting column stretches into the slot and is connected with the slot in a sliding manner. The beneficial effects are that: according to the insert injection molding sliding block structure, the movable mold core and the sliding block seat are in sliding connection through the insert column and the slot, the connection stability is good, when the puncture needle insert injection molding part is manufactured, the sliding block seat is firstly slid to the mold closing position close to the movable mold core, then the insert is placed on the insert column, and then mold closing injection molding is directly carried out.

Description

Insert injection molding sliding block structure of puncture needle, mold and injection molding machine

Technical Field

The utility model relates to the technical field of puncture needle manufacturing, in particular to an insert injection molding sliding block structure of a puncture needle, a mold and an injection molding machine.

Background

In the early stage of medical puncture technology research and development, a certain batch of puncture needles are required to be manufactured for testing, the puncture needles are of an insert injection molding structure, an insert is firstly placed on a slide block seat in a die during manufacturing, then the slide block seat is pushed to slide to a die closing position, then the die is closed for injection molding, after injection molding is completed, the die is firstly opened, then the slide block seat is pulled to slide to a discharging position, finally the puncture needle insert injection molding part on the slide block seat is taken out, and the die closing position and the discharging position are positioned at two ends of the sliding stroke of the slide block seat.

At present, the problem that the insert can not be stably placed on the sliding block seat in the manufacturing process of the injection molding piece of the puncture needle is that the insert pressing die is easy to cause, and the reason is that the sliding block seat can vibrate in the process of sliding to the die closing position, so that the insert placed on the sliding block seat is loose and shifted and even separated from the sliding block seat, and the insert pressing die is caused.

Disclosure of Invention

The utility model mainly aims to provide an insert injection molding sliding block structure, a mold and an injection molding machine of a puncture needle, and aims to solve the problems that an insert can not be stably placed on a sliding block seat in the existing puncture needle insert injection molding process, and an insert compression mold is easy to cause.

In order to solve the problems, the utility model provides an insert injection molding sliding block structure of a puncture needle, which comprises a movable die core and a sliding block seat, wherein the sliding block seat is provided with an insert column, an insert can be placed on the insert column, the movable die core is provided with a slot, and the insert column stretches into the slot and is connected with the slot in a sliding way.

In one embodiment, the sliding block seat is connected with a handle, and the handle and the inserting column are respectively arranged at two sides of the sliding block seat.

In an embodiment, the number of the inserting posts is two, and the inserting posts are arranged on the same side of the sliding block seat at intervals.

In an embodiment, the upper surface of the sliding block seat is provided with a jack, the inner wall of the jack is provided with a mounting hole, a sliding block and a spring are arranged in the mounting hole, one end of the spring is abutted against the bottom of the mounting hole, the other end of the spring is abutted against the sliding block, and the sliding block slides in the mounting hole under the pushing of the spring and partially stretches out of the mounting hole to enter the jack.

In one embodiment, an inclined surface is arranged at one end of the sliding block extending out of the mounting hole.

In one embodiment, the number of the mounting holes is two, and the mounting holes are symmetrically distributed on two opposite inner walls in the jack.

In an embodiment, the mounting hole is a through hole, one end of the mounting hole away from the jack is provided with a fixed block, one end of the spring is abutted against the fixed block, the fixed block is mounted on a pressing block, and the pressing block is connected with the sliding block seat.

In one embodiment, the insert pin is provided with a placement groove for placing the insert.

In addition, the utility model also provides a die, which comprises a movable die, a fixed die and the insert injection slider structure of the puncture needle;

the fixed die can be clung to the upper surface of the movable die, the upper surface of the movable die is provided with a containing groove, one end of the containing groove extends to the side face of the movable die, the sliding block seat is slidably mounted at one end in the containing groove, the movable die core is arranged at the other end in the containing groove, and the sliding block seat slides to drive the inserting column to slide in the inserting groove.

In an embodiment, the lower surface of the fixed die is connected with an inclined column, the sliding block seat slides in the accommodating groove to one side close to the movable die core, and in the process of moving the movable die upwards and clamping the fixed die, the lower end of the inclined column pushes the sliding block to retract into the mounting hole and then moves downwards to the lower part of the sliding block in the jack;

in the processes of moving the movable die downwards and opening the fixed die, the sliding block drives the sliding block seat to slide in the accommodating groove to the side far away from the movable die core under the pushing of the inclined column.

In an embodiment, a limiting block is arranged at one end of the accommodating groove, and the limiting block is connected with the movable die.

In addition, the utility model also provides an injection molding machine, which comprises the die.

The beneficial effects are that:

1. the insert injection molding sliding block structure enables the movable mold core to be in sliding connection with the sliding block seat through the insert column and the slot, the connection stability is good, when the puncture needle insert injection molding part is manufactured, the sliding block seat is firstly slid to a mold closing position close to the movable mold core, then the insert is placed on the insert column, and then mold closing injection molding is directly carried out;

2. the insert injection molding sliding block is simple in structure, and the sliding block seat is pushed to slide by the handle, so that the operation and the use are convenient;

3. the die disclosed by the utility model can realize that the sliding block seat slides to the discharging position in a linkage manner in the die opening process, so that the trouble of manually sliding the sliding block seat to the discharging position is eliminated, the time is saved, the production efficiency is improved, and the manufacturing cost of the injection molding piece of the puncture needle insert is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent that the figures in the following description illustrate only some embodiments of the utility model.

FIG. 1 is a schematic view of the structure of the mold of the present utility model;

FIG. 2 is a schematic illustration of FIG. 1 with the stationary platen and stationary mold removed;

FIG. 3 is a schematic illustration of FIG. 2 with the fixed mold insert removed;

FIG. 4 is a schematic view of the structure of the slider seat in the insert injection slider structure of the puncture needle according to the present utility model;

fig. 5 is an enlarged view of a portion B in fig. 4;

FIG. 6 is an exploded view of FIG. 4;

FIG. 7 is a schematic view of an insert injection molding slide construction of a piercing needle of the present utility model showing the slide seat in a closed position;

FIG. 8 is a second schematic view of an insert injection molding slide block structure of a piercing needle according to the present utility model, showing the slide block seat in a blanking position;

fig. 9 is a sectional view A-A in fig. 8.

The reference numerals are explained as follows:

1. a first bolt; 2. a shifting block; 3. an insert; 4. a slider seat; 5. a fixed block; 6. a second bolt; 7. briquetting; 8. a spring; 9. a sliding block; 10. a limiting block; 11. a handle; 12. a movable mold core; 13. a jack; 14. a diagonal column; 15. inserting a column; 16. a slot; 17. an inclined plane; 18. a placement groove; 19. a movable mold; 20. a fixed mold; 21. a fixed mould core; 22. a fixed mold mounting plate; 23. a mounting hole; 24. an accommodating groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" as it appears throughout includes three parallel schemes, for example "A and/or B", including the A scheme, or the B scheme, or the scheme where A and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides an insert injection molding sliding block structure of a puncture needle.

As shown in fig. 7 and 8, the insert injection molding sliding block structure of the puncture needle comprises a movable mold core 12 and a sliding block seat 4, wherein a plug post 15 is fixedly arranged on one side of the sliding block seat 4, and the plug post 15 and the sliding block seat 4 are preferably integrally designed; as shown in fig. 4 and 5, the insert 15 is provided with a placement groove 18, and the placement groove 18 is used for placing the insert 3; as shown in fig. 7 and 8, the movable mold core 12 has a slot 16, the insert column 15 extends into the slot 16 and is slidably connected with the slot 16, and the movable mold core 12 is slidably connected with the slide block seat 4 through the insert column 15 and the slot 16, so that the connection stability is good.

After the insert injection molding sliding block structure of the embodiment is adopted in the mold, when the injection molding piece of the puncture needle insert 3 is manufactured, the sliding block seat 4 is firstly slid to a mold closing position close to the movable mold core 12, as shown in fig. 7, the insert 3 is placed on the insert post 15, and then mold closing injection molding is directly performed, and after the insert 3 is placed on the insert post 15, the sliding block seat 4 is not required to slide, so that the insert 3 can be stably placed without loosening and shifting, and the problem of compression molding of the insert 3 is effectively solved.

In addition, since the movable mold core 12 is fixed and not sliding relative to the slide block seat 4, after the movable mold core 12 and the slide block seat 4 are in sliding connection through the insert column 15 and the slot 16, the slide block seat 4 can be stably connected with the movable mold core 12 when not sliding, and the movable mold core and the insert seat are integrated, so that shaking of the slide block seat 4 is relieved in the mold closing process, and the insert 3 is further ensured to be stably placed and not to be loose and shifted.

In this embodiment, as shown in fig. 4-8, the slide block seat 4 is fixedly connected with a handle 11, the handle 11 and the plunger 15 are separately arranged on two sides of the slide block seat 4, and in the working process, the handle 11 can be held by hand to push the slide block seat 4 to slide between the mold closing position and the discharging position, so that the operation is convenient.

In the present embodiment, as shown in fig. 7, the sliding stroke S1 of the slider seat 4 is 10mm.

Preferably, in this embodiment, as shown in fig. 4 to 8, two insert posts 15 are provided, and are fixedly disposed on the same side of the slide seat 4 at intervals, so that the stability of the sliding connection between the slide seat 4 and the movable mold core 12 can be further enhanced, so that the slide seat 4 is stably connected with the movable mold core 12 when not sliding, and the two insert posts form a whole, thereby helping to alleviate the shake of the slide seat 4 in the mold closing process, and further ensuring that the insert 3 is stably placed and does not loose and shift.

In addition, the utility model also provides a die.

As shown in fig. 1-3, the mold comprises a movable mold 19, a fixed mold 20 and an insert injection molding sliding block structure of a puncture needle according to any one of the foregoing claims, the fixed mold 20 is fixedly mounted on a fixed mold mounting plate 22, a fixed mold core 21 is fixedly arranged on the lower surface of the fixed mold 20, the fixed mold 20 can be tightly attached to the upper surface of the movable mold 19, a containing groove 24 is arranged on the upper surface of the movable mold 19, one end of the containing groove 24 extends to the side surface of the movable mold 19, the sliding block seat 4 is slidably mounted at one end in the containing groove 24, the movable mold core 12 is fixedly arranged at the other end in the containing groove 24, the upper surfaces of the sliding block seat 4 and the movable mold core 12 are flush with the upper surface of the movable mold 19, and after the movable mold 19 moves up to be clamped with the fixed mold 20, the upper surface of the movable mold core 12 is in pressure contact with the lower surface of the fixed mold core 21, and the upper surface of the movable mold 19 is in pressure contact with the lower surface of the fixed mold 20.

In this embodiment, as shown in fig. 3, the sliding block seat 4 slides in the accommodating groove 24 to drive the plunger 15 to slide in the slot 16.

In this embodiment, as shown in fig. 6 to fig. 9, the upper surface of the slider seat 4 is provided with a jack 13, an installation hole 23 is formed on the inner wall of the jack 13, a sliding block 9 and a spring 8 are arranged in the installation hole 23, one end of the spring 8 is abutted against the bottom of the installation hole 23, the other end is abutted against the sliding block 9, and the sliding block 9 slides in the installation hole 23 under the pushing of the spring 8 and partially extends out of the installation hole 23 into the jack 13; the lower surface of the fixed mold 20 is fixedly connected with an inclined post 14, after the sliding block seat 4 slides to one side close to the movable mold core 12 in the accommodating groove 24, namely, the position shown in fig. 7, in the process of moving up the movable mold 19 and closing the fixed mold 20, the lower end of the inclined post 14 stretches into the jack 13 and pushes the movable sliding block 9 to retract into the mounting hole 23 and then move down to the lower side of the sliding block 9 in the jack 13, as shown in fig. 9, the sliding block 9 retracts into the mounting hole 23 after moving a stroke S2, and the preferable stroke S2 is 5mm.

In this embodiment, since the inclined column 14 is arranged obliquely, after the movable mold 19 moves upwards to be clamped with the fixed mold 20, the lower end of the inclined column 14 is positioned below the sliding block 9, the upper end of the inclined column 14 is positioned above the sliding block 9 and is still fixedly connected with the lower surface of the fixed mold 20, and meanwhile, the sliding block 9 is restored to a state that part of the sliding block 9 extends out of the mounting hole 23 to enter the jack 13 under the pushing of the spring 8; in the process of moving the movable die 19 downwards and opening the fixed die 20, the sliding block 9 drives the sliding block seat 4 to slide to one side far away from the movable die core 12 in the accommodating groove 24 under the pushing of the inclined column 14, so that the sliding block seat 4 is simultaneously linked to a blanking position in the die opening process, the trouble that the hand handle 11 slides the sliding block seat 4 to the blanking position is omitted, blanking time is saved, the production efficiency of injection molding of the puncture needle insert 3 is improved, and the manufacturing cost of injection molding of the puncture needle insert 3 is reduced.

Preferably, as shown in fig. 6-9, the end of the sliding block 9 extending out of the mounting hole 23 is provided with an inclined surface 17, and the inclined surface 17 is designed to facilitate the lower end of the inclined column 14 to smoothly push the sliding block 9 to retract into the mounting hole 23.

In this embodiment, preferably, as shown in fig. 6 to 9, the two mounting holes 23 are symmetrically arranged on two opposite inner walls in the jack 13, so that the blocking effect of the sliding block 9 on the lower end of the inclined column 14 can be enhanced, and the problem that the sliding block 9 cannot be pushed to drive the sliding block seat 4 to slide in the accommodating groove 24 to a side far away from the movable mold core 12 due to the fact that the lower end of the inclined column 14 pushes the sliding block 9 to retract into the mounting hole 23 in the process of moving the movable mold 19 downwards and opening the fixed mold 20 is avoided.

In this embodiment, in order to facilitate the installation of the sliding block 9 and the spring 8 in the installation hole 23, as shown in fig. 6 and 9, the installation hole 23 is a through hole, one end of the installation hole 23 away from the jack 13 is provided with the fixed block 5, one end of the spring 8 is in contact with the fixed block 5, the fixed block 5 is detachably and fixedly installed on the pressing block 7, for example, the fixed block 5 shown in fig. 6 is fixedly connected with the pressing block 7 through the second bolt 6, and the pressing block 7 is detachably and fixedly connected with the sliding block seat 4.

Further, in order to facilitate the fixed connection of the inclined post 14 with the lower surface of the fixed mold 20, as shown in fig. 6, the upper end of the inclined post 14 is fixedly connected with the shifting block 2, and the shifting block 2 is detachably and fixedly connected with the lower surface of the fixed mold 20 through the first bolt 1, preferably, the inclined post 14 and the shifting block 2 are integrally designed.

In this embodiment, further, as shown in fig. 1-3 and fig. 6-8, a stopper 10 is disposed at one end of the accommodating groove 24, the stopper 10 is fixedly connected with the movable mold 19, and the stopper 10 is used for defining the position of the slide block seat 4, so as to prevent the slide block seat 4 from sliding out of the accommodating groove 24.

The working principle of the mold of this embodiment is described below:

as shown in fig. 1-3, when in use, the hand-held handle 11 pushes the slide block seat 4 to move to a side close to the movable mold core 12 in the accommodating groove 24, preferably when the slide block seat 4 slides to the mold closing position, the slide block seat 4 is abutted against the movable mold core 12, then the insert 3 is placed in the placing groove 18, and then the movable mold 19 is moved upwards to complete mold closing with the fixed mold 20, and after the insert 3 is placed on the inserting column 15, the slide block seat 4 is not required to slide, so that the insert 3 can be placed stably without loosening and shifting, and the problem of compression molding of the insert 3 is effectively solved; in the process of closing the mold, the lower end of the inclined column 14 stretches into the jack 13 and pushes the sliding block 9 to retract into the mounting hole 23 and then moves downwards to the position below the sliding block 9 in the jack 13, at the moment, the sliding block 9 is restored to a state that part of the sliding block 9 stretches out of the mounting hole 23 and enters the jack 13 under the pushing of the spring 8, then after injection molding is finished, the movable mold 19 moves downwards to finish mold opening, in the process of moving the movable mold 19 downwards, the sliding block 9 pushes the sliding block 4 to slide to one side far from the movable mold core 12 in the accommodating groove 24 and contact with the limiting block 10 under the pushing of the inclined column 14, so that the sliding block 4 is simultaneously slid to the blanking position in the process of opening the mold, the trouble that the hand pulling handle 11 slides the sliding block 4 to the blanking position is omitted, the blanking time is saved, the production efficiency of injection molding of the puncture needle insert 3 is improved, and the manufacturing cost of the injection molding of the puncture needle insert 3 is reduced.

In addition, the utility model also provides an injection molding machine, which comprises the die set in any one of the above embodiments, and because the injection molding machine adopts all the technical schemes of all the above embodiments, the injection molding machine has at least all the beneficial effects brought by the technical schemes of the above embodiments, and the description is omitted herein.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (13)

1. The insert injection molding sliding block structure of the puncture needle is characterized by comprising a movable die core and a sliding block seat, wherein an insert column is arranged on the sliding block seat, an insert can be placed on the insert column, the movable die core is provided with a slot, and the insert column stretches into the slot and is connected with the slot in a sliding manner.

2. The insert injection molding slider structure of puncture needle according to claim 1, wherein the slider seat is provided with a handle, and the handle and the plunger are provided separately on both sides of the slider seat.

3. The insert injection molding slider structure of puncture needle according to claim 1, wherein the number of the insert posts is two, and the insert posts are arranged at the same side of the slider seat at intervals.

4. The insert injection molding slider structure of puncture needle according to claim 1, wherein the upper surface of the slider seat is provided with a jack, the inner wall of the jack is provided with a mounting hole, a sliding block and a spring are arranged in the mounting hole, one end of the spring is abutted against the bottom of the mounting hole, the other end is abutted against the sliding block, and the sliding block slides in the mounting hole under the pushing of the spring and partially extends out of the mounting hole into the jack.

5. The insert injection molding slider structure of puncture needle according to claim 4, wherein an end of the slider protruding from the mounting hole is provided with a slope.

6. The insert injection molding slider structure of a puncture needle according to claim 4, wherein the number of the mounting holes is two, and the mounting holes are symmetrically arranged on two opposite inner walls in the insertion hole.

7. The insert injection molding slider structure of puncture needle according to claim 4, wherein the mounting hole is a through hole, one end of the mounting hole far away from the insertion hole is provided with a fixed block, one end of the spring is abutted against the fixed block, the fixed block is mounted on a pressing block, and the pressing block is connected with the slider seat.

8. The insert injection molding slider structure of a puncture needle according to claim 1, wherein the insert pin is provided with a placement groove for placing an insert.

9. A mold, characterized in that the mold comprises a movable mold, a fixed mold and the insert injection slider structure of the puncture needle according to any one of claims 1 to 3, 8;

the fixed die can be clung to the upper surface of the movable die, the upper surface of the movable die is provided with a containing groove, one end of the containing groove extends to the side face of the movable die, the sliding block seat is slidably mounted at one end in the containing groove, the movable die core is arranged at the other end in the containing groove, and the sliding block seat slides to drive the inserting column to slide in the inserting groove.

10. A mold, characterized in that the mold comprises a movable mold, a fixed mold and the insert injection slider structure of the puncture needle according to any one of claims 4 to 7;

the fixed die can be clung to the upper surface of the movable die, the upper surface of the movable die is provided with a containing groove, one end of the containing groove extends to the side face of the movable die, the sliding block seat is slidably mounted at one end in the containing groove, the movable die core is arranged at the other end in the containing groove, and the sliding block seat slides to drive the inserting column to slide in the inserting groove.

11. The mold of claim 10, wherein the lower surface of the fixed mold is connected with an inclined column, and the sliding block seat slides in the accommodating groove to one side close to the movable mold core, and in the process of moving up and closing the movable mold core, the lower end of the inclined column pushes the sliding block to retract into the mounting hole and then moves down to the lower part of the sliding block in the jack;

in the processes of moving the movable die downwards and opening the fixed die, the sliding block drives the sliding block seat to slide in the accommodating groove to the side far away from the movable die core under the pushing of the inclined column.

12. A mould according to claim 9 or 10, wherein a stopper is provided at one end of the receiving slot, the stopper being connected to the movable mould.

13. An injection molding machine comprising a mold according to any one of claims 9-12.

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