CN217258089U - High-precision medical instrument part rapid forming die - Google Patents

Abstract

The utility model discloses a rapid prototyping mold for high-precision medical equipment parts, which relates to the field of mold design, comprising an upper template and a lower template. The lower template is provided with a lateral centering mechanism, which includes a first sliding block, a second sliding block, a compression spring, an adjusting screw, a locking nut and an oblique bolt, the first sliding block and the second sliding block. They are installed on the lower template with sliding fit, the second sliding block is located outside the first sliding block, the adjusting screw is fixedly installed on the outside of the first sliding block, the middle of the second sliding block is formed with a hollow hole, and the outer end of the adjusting screw It is arranged through the avoidance hole, the lock nut is screwed and installed on the outer end of the adjusting screw, the compression spring is abutted and installed between the first slider and the second slider, the oblique bolt is fixedly installed on the lower side of the upper template, the first A socket is formed on the second sliding block, and the lower end of the oblique pin is arranged to be inserted into the socket with clearance fit.

Description

A rapid prototyping mold for high-precision medical device parts

technical field

The utility model relates to the field of mold design, in particular to a rapid prototyping mold for high-precision medical equipment parts.

Background technique

Molds, various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. In a nutshell, a mold is a tool used to make a shaped item, this tool is made up of various parts, and different molds are made up of different parts. It mainly realizes the processing of the shape of the article by changing the physical state of the formed material. Known as the "Mother of Industry".

In the injection mold, the injection molding machine injects the high-temperature flowing plastic into the injection mold, and the plastic is released after cooling. The core pulling mechanism includes a slider and an oblique pin. The slider is provided with an oblique jack. When the mold is closed, the oblique pin is inserted into the jack to drive the slider to approach the high-temperature plastic. When the mold is demolded, the pin is pulled out of the jack to drive the slider away from cooling The defect of this mold is that the sliding stroke of the slider is limited, and the distance between the slider and the high-temperature plastic cannot be adjusted, resulting in the product produced by a single mold having the same structure, which cannot be produced by a single mold. Products with slightly different constructions.

Utility model content

In order to overcome the above-mentioned shortcomings, the present utility model provides a technical solution that can solve the above-mentioned problems.

A rapid prototyping mold for high-precision medical device parts, comprising an upper template and a lower template, a cavity is fixedly installed on the lower side of the upper template, a core is fixedly installed on the upper side of the lower template, the cavity is arranged above the core, and the lower A lateral centering mechanism is provided on the template, and the lateral centering mechanism includes a first sliding block, a second sliding block, a compression spring, an adjusting screw, a locking nut and an oblique bolt. The first sliding block and the second sliding block are both. The sliding fit is installed on the lower template, the first sliding block is located outside the core, the second sliding block is located outside the first sliding block, the adjusting screw is fixedly installed on the outer side of the first sliding block, and the middle of the second sliding block is formed to avoid The empty hole and the empty hole are arranged horizontally, the outer end of the adjusting screw is arranged through the empty hole, the locking nut is screwed and installed on the outer end of the adjusting screw, the locking nut is pressed on the outside of the second slider, and the compression spring It is connected and installed between the first slider and the second slider, the oblique pin is fixedly installed on the lower side of the upper template, the second slider is formed with a socket, the socket is arranged obliquely, and the lower end of the oblique pin is inserted into the socket with clearance fit. The holes are arranged, and the empty holes and the jacks are staggered before and after each other.

As a further solution of the present invention, the outer side of the locking nut is provided with a cylindrical handle, the inner side of the cylindrical handle is formed with a nut countersunk head groove, and the locking nut is installed in the nut countersunk head groove with clearance fit.

As a further solution of the present utility model: the outer side of the cylinder handle is engraved with a scale, and the upper edge of the second sliding block is engraved with an arrow, and the arrow points to the scale.

As a further solution of the present invention, the upper side edge of the lower template is formed with a hollow groove, and the hollow groove is located below the cylinder handle.

As a further solution of the present invention, several positioning rods are fixedly installed on the outer side of the first sliding block, and several positioning holes are formed on the second sliding block.

As a further solution of the present utility model: the outer side of the first slider is formed with a first spring groove, the inner side of the second slider is formed with a second spring groove, and the compression spring is abutted and installed in the first spring groove and the second spring groove In between, the added depth of the first spring groove and the second spring groove is equal to the length after the compression spring is fully compressed.

Compared with the prior art, the beneficial effect of the present invention is that the compression spring is always pressed between the first sliding block and the second sliding block, and the locking nut can drive the first sliding block to the second sliding block when the locking nut is tightened. When the direction is close, the compression spring drives the first slider away from the second slider when the lock nut button is loosened, so as to adjust the position of the slider, and then adjust the sliding stroke of the slider. A single mold can produce products with slightly different structures.

Additional aspects and advantages of the invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or learned by practice of the invention.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the sectional structure schematic diagram of the present utility model;

Fig. 2 is the sectional structure schematic diagram of another position of the present utility model;

Fig. 3 is the sectional structure schematic diagram of the lateral core pulling mechanism;

FIG. 4 is a top-view cross-sectional structural schematic diagram of the lateral core pulling mechanism.

As shown in the figure: 1. Upper template; 2. Lower template; 3. Cavity; 4. Core; 5. Lateral core pulling mechanism; 51. First slider; 52, Second slider; 53, Press Tightening spring; 54, adjusting screw; 55, locking nut; 56, oblique bolt; 6, escape hole; 7, jack; 8, cylinder handle; 9, nut countersunk groove; 10, scale; 11, Arrow; 12, Evacuation groove; 13, Positioning rod; 14, Positioning hole; 15, First spring groove; 16, Second spring groove.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, not all of the embodiments.

The components of the embodiments of the invention generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention.

Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner" and "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, with a specific orientation. Therefore, it should not be construed as a limitation on the present invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a connectable connection. Detachable connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection, or indirect connection through an intermediate medium, or internal communication between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in Figures 1-4, a rapid prototyping mold for high-precision medical device parts of the present invention includes an upper template 1 and a lower template 2, a cavity 3 is fixedly installed on the lower side of the upper template 1, and an upper template of the lower template 2 is installed The core 4 is fixedly installed on the side, the cavity 3 is arranged above the core 4, and the lower template 2 is provided with a lateral core pulling mechanism 5, and the lateral core pulling mechanism 5 includes a first sliding block 51 and a second sliding block 52. , the compression spring 53, the adjusting screw 54, the locking nut 55 and the oblique bolt 56, the first sliding block 51 and the second sliding block 52 are installed on the lower template 2 in a sliding fit, and the first sliding block 51 is located on the outer side of the core 4 , the second slider 52 is located on the outside of the first slider 51, the adjusting screw 54 is fixedly installed on the outside of the first slider 51, the middle of the second slider 52 is formed with an escape hole 6, and the escape hole 6 is arranged laterally, The outer end of the adjusting screw rod 54 is arranged through the hollow hole 6, the locking nut 55 is screwed and installed on the outer end of the adjusting screw rod 54, the locking nut 55 is pressed on the outside of the second slider 52, and the compression spring 53 is installed in abutment Between the first sliding block 51 and the second sliding block 52, the oblique pin 56 is fixedly installed on the lower side of the upper template 1, and the second sliding block 52 is formed with a socket 7, the socket 7 is arranged obliquely, and the oblique pin 56 The lower end of the hole is set in a clearance fit with the insertion hole 7, and the void avoidance hole 6 and the insertion hole 7 are staggered from each other;

The principle is: the compression spring 53 is always pressed between the first slider 51 and the second slider 52, and when the locking nut 55 is tightened, it can drive the first slider 51 to approach the direction of the second slider 52, and lock it tightly. When the nut 55 is loosened, the compression spring 53 drives the first slider 51 away from the second slider 52 to adjust the position of the slider. When the mold is closed, the oblique pin 56 is inserted into the jack 7 to drive the second slider 52 to the core 4 Move in the same direction, and then perform injection molding after the first slider 51 is close to the core 4. Since the distance between the first slider 51 and the second slider 52 can be adjusted, and then the sliding stroke can be adjusted, a single mold can produce a slightly smaller structure. For products with differences, when demoulding, the oblique pin 56 is pulled out from the socket 7 to achieve the effect of driving the first slider 51 and the second slider 52 away from the core 4, preventing the inner wall of the first slider 51 from jamming the product , to facilitate the release of the product.

As a further scheme of the present utility model: the outer side of the locking nut 55 is provided with a cylindrical handle 8, the inner side of the cylindrical handle 8 is formed with a nut countersunk head groove 9, and the locking nut 55 is fitted in the nut countersunk head groove 9; The twisting of the lock nut 55 can be facilitated.

As a further solution of the present invention: the outer side of the cylindrical handle 8 is engraved with a scale 10, and the upper edge of the second sliding block 52 is engraved with an arrow 11, and the arrow 11 points to the setting of the scale 10; it is easy to adjust And determine the distance between the first sliding block 51 and the second sliding block 52 .

As a further solution of the present invention: the upper edge of the lower template 2 is formed with a hollow groove 12, and the hollow groove 12 is located below the cylindrical handle 8; the lower template 2 will not block the cylindrical handle 8, which is convenient for the cylindrical handle 8 twists.

As a further solution of the present invention, a number of positioning rods 13 are fixedly installed on the outer side of the first sliding block 51 , a number of positioning holes 14 are formed on the second sliding block 52 , and the outer ends of the positioning rods 13 are inserted in a one-to-one correspondence with clearance fit. The positioning hole 14 is provided; it can ensure that the second sliding block 52 is outside the first sliding block 51, and the distance adjustment is more stable.

As a further solution of the present invention, a first spring groove 15 is formed on the outer side of the first sliding block 51, a second spring groove 16 is formed on the inner side of the second sliding block 52, and the compression spring 53 is abutted and installed in the first spring groove. Between 15 and the second spring groove 16, the combined depth of the first spring groove 15 and the second spring groove 16 is equal to the length after the compression spring 53 is fully compressed; the compression spring 53 can completely sink into the first spring groove 15 and The second spring groove 16 can also ensure the installation and positioning of the compression spring 53 .

This embodiment does not limit the shape, material, structure, etc. of the present invention in any form, and any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention belong to the technology of the present invention. The scope of protection of the program.

Claims (6)

1. The utility model provides a high-accuracy medical instrument part rapid prototyping mould, includes cope match-plate pattern and lower bolster, and the downside fixed mounting of cope match-plate pattern has the die cavity, and the upside fixed mounting of lower bolster has the core, and the die cavity setting is provided with the side direction on the lower bolster and takes out heart mechanism, its characterized in that in the top of core: the lateral core-pulling mechanism comprises a first slide block, a second slide block and a pressing spring, adjusting screw, lock nut and oblique bolt, the equal sliding fit of first slider and second slider is installed on the lower bolster, first slider is located the outside of core, the second slider is located the outside of first slider, adjusting screw fixed mounting is in the outside of first slider, the middle part shaping of second slider has the clearance hole of keeping away, keep away the horizontal setting of clearance hole, adjusting screw's outer end is passed and is kept away the clearance hole setting, lock nut screw fit installs the outer end at adjusting screw, lock nut presses the outside at the second slider, the housing spring butt is installed between first slider and second slider, oblique bolt fixed mounting is at the downside of cope match-plate pattern, the shaping has the jack on the second slider, the jack slant sets up, the lower extreme clearance fit of oblique bolt inserts the jack setting, keep away the setting of staggering around each other between clearance hole and the jack.

2. The high-precision medical instrument part rapid forming die as claimed in claim 1, wherein: the outer side of the locking nut is provided with a cylinder handle, a nut countersunk groove is formed in the inner side of the cylinder handle, and the locking nut is installed in the nut countersunk groove in a clearance fit mode.

3. The high-precision medical instrument part rapid forming die as claimed in claim 2, wherein: the outside of drum handle is carved and is made the shaping and have the scale, and the upside border of second slider is carved and is made the shaping and have the arrow point, and the arrow point sets up to the scale.

4. The high-precision medical instrument part rapid forming die as claimed in claim 2, wherein: the upper side edge of the lower template is formed with a clearance groove which is positioned below the cylinder handle.

5. The high-precision medical instrument part rapid forming die as claimed in claim 1, wherein: a plurality of positioning rods are fixedly mounted on the outer side of the first sliding block, a plurality of positioning holes are formed in the second sliding block in a forming mode, and the outer ends of the positioning rods are in one-to-one clearance fit with the positioning holes in an inserted mode.

6. The high-precision medical instrument part rapid forming die as claimed in claim 1, wherein: the outside shaping of first slider has first spring groove, and the inboard shaping of second slider has second spring groove, and housing spring butt is installed between first spring groove and second spring groove, and the degree of depth that first spring groove and second spring groove add equals the length after housing spring compresses tightly completely.

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