CN214684161U - Radio frequency ablation needle mold - Google Patents

Abstract

The utility model relates to the technical field of mold, concretely relates to radio frequency melts needle mould. The specific technical scheme is as follows: the utility model provides a radio frequency ablation needle mould, includes die body and inserts the internal last die body of lower die, the vertical several top and the open-ended pouring chamber in bottom that is provided with on the die body down, the bottom of die body is provided with the spacing groove down, the spacing inslot is provided with the limiting plate, be provided with on the limiting plate and be conical inserted block, inserted block and pouring chamber one-to-one, and the bottom surface diameter of inserted block is less than the internal diameter in pouring chamber, be provided with the fixed establishment of several with limiting plate and lower die body fixed on the limiting plate. The utility model provides a fracture area, local tear, burr change scheduling problem that exist in the preparation of the ablation needle among the prior art.

Description

Radio frequency ablation needle mold

Technical Field

The utility model relates to the technical field of mold, concretely relates to radio frequency melts needle mould.

Background

The radio frequency ablation needle is generally used for treating diseases such as tumors and too fast heart rate, and the ablation needle needs to be inserted into a human body for treatment operation. Therefore, the processing requirements for the ablation needle are high. In the prior art, the problems of broken belts, local tearing, burr change and the like generally exist in the process of manufacturing the ablation needle. Therefore, a new mold for processing the ablation needle is urgently needed to solve the above problems.

Disclosure of Invention

The utility model provides a to the not enough of prior art, the utility model provides a radio frequency melts needle mould has solved among the prior art to splitting area, local tear, burr change scheduling problem that exist in the preparation of melting the needle.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model discloses a radio frequency ablation needle mould, including lower die body and the internal last die body of inserting the lower die, vertically on the die body down be provided with several top and bottom open-ended pouring chamber, the bottom of die body is provided with the spacing groove down, the limiting groove is provided with the limiting plate, be provided with on the limiting plate and be conical inserted block, inserted block and pouring chamber one-to-one, and the bottom surface diameter of inserted block is less than the internal diameter in pouring chamber, be provided with the fixed establishment of several with limiting plate and lower die body fixed on the limiting plate.

Preferably, the fixing mechanism is arranged at a gap between the insert block and the insert block, the gap between the lower die body and the pouring cavity is provided with limiting through holes which are the same in number and correspond to the fixing mechanism in position, and the limiting through holes are in a step shape and the small-diameter sections face the limiting plate.

Preferably, the fixing mechanism comprises a conical head and a fixing column fixed at the center of the bottom surface of the conical head, a plurality of arc plates with conicity are arranged below the conical head and on the side walls of the fixing column, concave surfaces of the arc plates are connected with the fixing column through a plurality of elastic pieces, and after the elastic pieces are compressed, the extension lines of the inclined surfaces of the arc plates coincide with the extension line of the inclined surface of the conical head.

Preferably, the diameter of the small-diameter section of the limiting through hole is larger than that of the fixing column and is larger than the diameter of the bottom surface of the arc-shaped plate after combination.

Preferably, go up the mould body including the apron with set up the several mold core in the apron bottom surface, the quantity of mold core and the quantity in pouring the chamber are the same and the position corresponds, and when making the mold core insert the pouring intracavity, the axis of mold core and the coincidence of the axis in pouring the chamber, the bottom surface of mold core is provided with the bell jar, bell jar and inserted block looks adaptation.

Preferably, the diameter of the bottom surface of the tapered groove is smaller than that of the mold core, and after the upper mold body and the lower mold body are combined, the gap between the mold core and the pouring cavity is the wall thickness of the ablation needle.

Preferably, the lower die body is arranged on the support in a sliding mode, and the lower die body is driven to reciprocate on the support through a motor.

Preferably, the support is provided with sliding rails in parallel, the sliding rails are provided with sliding blocks, and the lower die body is arranged on the sliding blocks.

Preferably, the motor is arranged on the side wall of the support, a screw rod is arranged on an output shaft of the motor, a nut is arranged on the screw rod, the other end of the screw rod is fixed on the support through a bearing seat, and the side face of the lower die body is fixed with the nut.

Preferably, the top of the upper die body is provided with a telescopic piece.

The utility model discloses possess following beneficial effect:

the utility model discloses set the bottom of die body down to detachable, set up the limiting plate in the bottom of die body down, set up the inserted block on the limiting plate, simultaneously, set up fixed establishment on the limiting plate to set up the spacing through-hole that corresponds with fixed establishment on die body down, thereby make spacing through-hole and fixed establishment cooperation can dismantle the limiting plate and fix the bottom at die body down; meanwhile, the inner diameter of the ablation needle can be controlled by changing the diameter of the bottom surface of the insertion block. And then, the fixing mechanism is contracted by using the disassembling mechanism, so that the limiting plate is disassembled from the lower die body. Adopt the utility model discloses a mould processing melts efficient of needle, the problem on fracture area, local tear and burr limit can not appear.

Drawings

FIG. 1 is a schematic view of the structure of the lower mold body of the present invention;

FIG. 2 is a schematic view of the upper mold body;

FIG. 3 is a schematic structural view of the lower mold body combined with a limiting plate;

FIG. 4 is a schematic structural view of the combination of the fixing mechanism and the limiting plate;

FIG. 5 is a view taken along line A-A of FIG. 4;

FIG. 6 is an exploded view of the securing mechanism;

FIG. 7 is a schematic view of the mold set on the support;

FIG. 8 is a top view of FIG. 7;

FIG. 9 is a schematic structural view of the detaching mechanism;

in the figure: the casting mold comprises a lower mold body 1, an upper mold body 2, a casting cavity 3, a limiting groove 4, a limiting plate 5, an inserting block 6, a limiting through hole 7, a conical head 8, a fixing column 9, an arc-shaped plate 10, an elastic piece 11, a cover plate 12, a mold core 13, a conical groove 14, a support 15, a motor 16, a sliding rail 17, a sliding block 18, a screw rod 19, a screw nut 20 and a bearing seat 21.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Unless otherwise indicated, the technical means used in the examples are conventional means well known to those skilled in the art.

Referring to fig. 1-9, the utility model discloses a radio frequency ablation needle mold, which comprises a lower mold body 1 and an upper mold body 2 inserted into the lower mold body 1, wherein a plurality of pouring cavities 3 with top and bottom openings are vertically arranged on the lower mold body 1, a limiting groove 4 is arranged at the bottom of the lower mold body 1, the pouring cavities 3 are communicated with the limiting groove 4, a limiting plate 5 is arranged in the limiting groove 4, the limiting plate 5 is matched with the limiting groove 4, so that the limiting plate 5 can be exactly arranged in the limiting groove 4, the top surface of the limiting plate 5 is provided with conical inserting blocks 6, the inserting blocks 6 correspond to the pouring cavities 3 one by one, the diameter of the bottom surface of each inserting block 6 is smaller than the inner diameter of each pouring cavity 3, when limiting plate 5 was arranged in spacing groove 4, inserted block 6 inserted in pouring chamber 3, and the axis coincidence in the central line of inserted block 6 and pouring chamber 3 is provided with the several on the limiting plate 5 with limiting plate 5 and the fixed establishment of lower mould body 1.

Further, the fixing mechanism is arranged at a gap between the inserting block 6 and the inserting block 6, the gap between the lower die body 1 and the pouring cavity 3 is provided with limiting through holes 7 which are the same in quantity and correspond to the fixing mechanism in position, and the limiting through holes 7 are in a step shape and are arranged towards the limiting plate 5 in the small-diameter section. Thereby fixing mechanism inserts in spacing through-hole 7 and fixes limiting plate 5 in spacing groove 4, and fixing mechanism's quantity is unlimited, and the size according to die body 1 sets up can, and spacing through-hole 7 runs through die body 1 and sets up down.

Further, fixed establishment includes circular cone head 8 and fixes the fixed column 9 in circular cone head 8 bottom surface center department, is located and is provided with several curved plates 10 that have tapering on circular cone head 8's below, the lateral wall of fixed column 9, is connected through a plurality of elastic component 11 between the concave surface of curved plate 10 and the fixed column 9, and after elastic component 11 was compressed, the inclined plane extension line of curved plate 10 coincided with the inclined plane extension line of circular cone head 8. The diameter of the small diameter section of the limiting through hole 7 is larger than that of the fixing column 9, and is larger than the diameter of the bottom surface of the arc plate 10 after combination, so that the fixing column 9 can penetrate through the small diameter section of the limiting through hole 7, and meanwhile, the arc plate 10 can penetrate through the small diameter section of the limiting through hole 7 after being compressed. The length of fixed column 9 is more than or equal to the length of spacing through-hole 7 footpath section, preferably equals the diameter of spacing through-hole 7 footpath section, and when making fixing mechanism stretch into spacing through-hole 7, the bottom surface of arc 10 can just support on the terminal surface between spacing through-hole 7 major diameter section and the path section.

Further, the upper die body 2 comprises a cover plate 12 and a plurality of die cores 13 arranged on the bottom surface of the cover plate 12, the number of the die cores 13 is the same as that of the pouring cavities 3, and the positions of the die cores 13 correspond to those of the pouring cavities 3, so that when the die cores 13 are inserted into the pouring cavities 3, the axial lines of the die cores 13 are overlapped with those of the pouring cavities 3, the bottom surfaces of the die cores 13 are provided with tapered grooves 14, and the tapered grooves 14 are matched with the insert blocks 6. The diameter of the bottom surface of the tapered groove 14 is smaller than that of the mold core 13, and after the upper mold body 2 and the lower mold body 1 are combined, the gap between the mold core 13 and the pouring cavity 3 is the wall thickness of the ablation needle. At the same time, the diameter of the mould core 13 is smaller than the diameter of the casting cavity 3.

Further, the lower die body 1 is slidably disposed on the support 15, and the lower die body 1 is driven by the motor 16 to reciprocate on the support 15. The method specifically comprises the following steps: the support 15 is provided with a slide rail 17 in parallel, the slide rail 17 is provided with a slide block 18, and the lower die body 1 is fixedly arranged on the slide block 18, so that the lower die body 1 can reciprocate along the slide rail 17. The motor 16 is arranged at one side of the bracket 15, a screw rod 19 is arranged on an output shaft of the motor 16, a nut 20 is arranged on the screw rod 19, the other end of the screw rod 19 is fixed on the bracket 15 through a bearing seat 21, and the side surface of the lower die body 1 is fixed with the nut 20, so that the lower die body 1 is driven by the motor 16 to reciprocate along the slide rail 17.

Further, the top of the upper mold body 2 is provided with a telescopic part (not shown in the figure), and the telescopic part is an electric push rod, an air cylinder or other parts capable of realizing linear motion.

Further, when carrying out the drawing of patterns, need use disassembly body, disassembly body includes connecting plate 22, and the bottom of connecting plate 22 is provided with several bottom open-ended sleeve 23, sleeve 23 and 7 minor diameter sections adaptations of spacing through-hole, make sleeve 23 just insert in the minor diameter section. Meanwhile, the inner diameter of the sleeve 23 is larger than or equal to the diameter of the top surface of the graph surrounded by the arc-shaped plate 10 in the large-diameter section of the limiting through hole 7. When the drawing of patterns is carried out, insert sleeve 23 in spacing through-hole 7, at this moment, cone head 8 is arranged in sleeve 23 completely, and the top surface of all arcs 10 then part stretch into sleeve 23 in the hole or correspond with sleeve 23's hole, at this moment, press connecting plate 22 again, sleeve 23 pushes down, make arcs 10 pressed into sleeve 23 in, when the bottom part of sleeve 23 stretches into in the path section of spacing through-hole 7 or corresponds with the path section, just can follow limiting groove 4 with limiting plate 5 and extract. And then the upper die body 2 is taken out, and then the product in the pouring cavity 3 can be taken out.

When the utility model is used, the demoulding agent is needed to be smeared on the outer side walls of the pouring cavity 3, the insert block 6 and the mould core 13, thereby being convenient for demoulding. The utility model discloses in, can be through the diameter that changes the bottom surface diameter of inserted block 6 and mold core 13 to the internal diameter that melts the needle changes, simultaneously, also can be through the internal diameter size that changes pouring chamber 3, thereby changes the external diameter that melts the needle, and cooperates with mold core 13, thereby can control the wall thickness that melts the needle.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and those skilled in the art should also be able to make various modifications and improvements to the technical solution of the present invention without departing from the spirit of the present invention, and all such modifications and improvements are intended to fall within the scope of the present invention as defined in the appended claims.

Claims (10)

1. A radio frequency ablation needle mold is characterized in that: including die body (1) down and insert last die body (2) in die body (1) down, vertically on die body (1) down be provided with several top and bottom open-ended pouring chamber (3), the bottom of die body (1) is provided with spacing groove (4) down, be provided with limiting plate (5) in spacing groove (4), be provided with on limiting plate (5) and be conical inserted block (6), inserted block (6) and pouring chamber (3) one-to-one, and the bottom surface diameter of inserted block (6) is less than the internal diameter of pouring chamber (3), be provided with the fixed establishment of several with limiting plate (5) and die body (1) down on limiting plate (5).

2. The radiofrequency ablation needle mold of claim 1, wherein: the fixed establishment sets up the clearance department between inserted block (6) and inserted block (6), clearance department on lower die body (1), between pouring chamber (3) and the pouring chamber (3) is provided with spacing through-hole (7) the same and position of fixed establishment quantity corresponds, spacing through-hole (7) are the echelonment, and path section sets up towards limiting plate (5).

3. The radiofrequency ablation needle mold of claim 2, wherein: the fixing mechanism comprises a conical head (8) and a fixing column (9) fixed at the center of the bottom surface of the conical head (8), a plurality of arc plates (10) with conicity are arranged below the conical head (8) and on the side wall of the fixing column (9), the concave surfaces of the arc plates (10) are connected with the fixing column (9) through a plurality of elastic pieces (11), and after the elastic pieces (11) are compressed, the extension lines of the inclined surfaces of the arc plates (10) coincide with the extension lines of the inclined surfaces of the conical head (8).

4. The radiofrequency ablation needle mold of claim 3, wherein: the diameter of the small-diameter section of the limiting through hole (7) is larger than that of the fixing column (9) and is larger than the diameter of the bottom surface of the arc-shaped plate (10) after combination.

5. The radiofrequency ablation needle mold of claim 1, wherein: go up die body (2) including apron (12) and several mold core (13) of setting in apron (12) bottom surface, the quantity of mold core (13) is the same and the position corresponds with the quantity of pouring chamber (3), and when making mold core (13) insert pouring chamber (3), the axis of mold core (13) and the axis coincidence of pouring chamber (3), the bottom surface of mold core (13) is provided with bell groove (14), bell groove (14) and inserted block (6) looks adaptation.

6. The radiofrequency ablation needle mold of claim 5, wherein: the diameter of the bottom surface of the conical groove (14) is smaller than that of the mold core (13), and after the upper mold body (2) and the lower mold body (1) are combined, the gap between the mold core (13) and the pouring cavity (3) is the wall thickness of the ablation needle.

7. The radio frequency ablation needle mold according to any one of claims 1 to 6, wherein: the lower die body (1) is arranged on the support (15) in a sliding mode, and the lower die body (1) is driven to reciprocate on the support (15) through the motor (16).

8. The radiofrequency ablation needle mold of claim 7, wherein: the die is characterized in that sliding rails (17) are arranged on the support (15) in parallel, sliding blocks (18) are arranged on the sliding rails (17), and the lower die body (1) is arranged on the sliding blocks (18).

9. The radiofrequency ablation needle mold of claim 8, wherein: the die is characterized in that the motor (16) is arranged on the side wall of the support (15), a screw rod (19) is arranged on an output shaft of the motor (16), a nut (20) is arranged on the screw rod (19), the other end of the screw rod (19) is fixed on the support (15) through a bearing seat (21), and the side surface of the lower die body (1) is fixed with the nut (20).

10. The radiofrequency ablation needle mold of claim 1, wherein: and the top of the upper die body (2) is provided with a telescopic piece.

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