CN212021366U

CN212021366U - Circular arc core-pulling mechanism for die

Info

Publication number: CN212021366U
Application number: CN202020571472.3U
Authority: CN
Inventors: 温德生
Original assignee: Xiamen Fengjin Mold Industry Co ltd
Current assignee: Xiamen Fengjin Mold Industry Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-11-27
Anticipated expiration: 2030-04-17

Abstract

The utility model relates to a mould circular arc mechanism of loosing core, it can include slider and direction subassembly, direction subassembly fixed mounting has the circular arc guide slot on it on the opposite both sides of the preceding template of mould, the slider includes the main part and is located the cylinder at main part both ends is protruding, install with the main part slidable in the back mould of mould and cylinder is protruding to be acceptd movably in the circular arc guide slot, a plurality of circular arc mold inserts have set firmly in the main part, the circular arc mold insert is arranged in the shaping chamber that front mould benevolence and back mould benevolence formed. The utility model discloses simple structure, convenient assembling, whole mould is less, and manufacturing cost is lower.

Description

Circular arc core-pulling mechanism for die

Technical Field

The utility model relates to a mould field specifically relates to a mould circular arc mechanism of loosing core.

Background

In the plastic mold design, a product requiring the circular arc core pulling design is often encountered, as shown in fig. 5. Although the product is not large, the designed mold is quite large. Because a traditional arc core pulling mechanism is complex, a rack is driven to slide back and forth by an oil rod of an oil cylinder according to the principle, the rack drives a fixed gear in a mold to rotate when sliding back and forth, a planetary gear in the mold is driven to revolve around the fixed gear when the fixed gear rotates, and the planetary gear is connected with a core pulling slide block in a mold core of the mold so as to drive the core pulling slide block in the mold core. The core-pulling mechanism is provided with a plurality of matched parts, and the transmission part and the slide block do not move in the same plane, so that the whole core-pulling process needs to occupy a large space, the mold is usually designed to be large, the assembly process is complex, and the manufacturing cost of the mold is correspondingly high.

Disclosure of Invention

The utility model aims at providing a mould circular arc mechanism of loosing core to solve above-mentioned problem. Therefore, the utility model discloses a specific technical scheme as follows:

the utility model provides a mould circular arc mechanism of loosing core, it can include slider and direction subassembly, direction subassembly fixed mounting has the circular arc guide slot on it on the opposite both sides of the front bezel of mould, the slider includes the main part and is located the cylinder arch at main part both ends, the main part slidable install in the back mould of mould and the cylinder arch is received movably in the circular arc guide slot, a plurality of circular arc mold inserts have set firmly in the main part, the circular arc mold insert is located the shaping chamber that front mould benevolence and back mould benevolence formed.

Further, the main body and the arc insert are integrally formed.

Further, the guide assembly comprises a first guide piece, a second guide piece and a fixed block, the second guide piece is fixedly embedded in the side face of the front template, the first guide piece is fixedly installed on the fixed block and the second guide piece, a first arc guide groove and a second arc guide groove are respectively formed in the first guide piece and the second guide piece, and the first arc guide groove and the second arc guide groove are aligned with each other to form the arc guide grooves.

Furthermore, the size of an outer frame formed by the fixed block and the second guide piece is consistent with the size of an outer frame of the first guide piece.

Furthermore, the side surfaces of the front template and the rear template of the die are provided with concave parts, and the fixing block and the second guide piece are received in the concave parts, so that the outer surfaces of the fixing block and the second guide piece are flush with the side surfaces of the front template and the rear template.

Furthermore, an opening is arranged on the concave part of the rear template, and the opening is provided with an arc surface connected with the sliding block.

The utility model adopts the above technical scheme, the beneficial effect who has is: the utility model discloses simple structure, convenient assembling, whole mould is less, and manufacturing cost is lower.

Drawings

To further illustrate the embodiments, the present invention provides the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the embodiments. With these references, one of ordinary skill in the art will appreciate other possible embodiments and advantages of the present invention. Elements in the figures are not drawn to scale and like reference numerals are generally used to indicate like elements.

Fig. 1 is a perspective view of a mold having a mold arc core-pulling mechanism according to an embodiment of the present invention;

FIG. 2 is another perspective view of the mold shown in FIG. 1 with parts removed to illustrate a mold arc core-pulling mechanism;

FIG. 3 is a partially exploded view of the mold shown in FIG. 1;

FIG. 4 is a perspective view of a slide of a mold arc core-pulling mechanism of the mold shown in FIG. 1;

fig. 5 is a perspective view of a product to be molded.

Detailed Description

The present invention will now be further described with reference to the accompanying drawings and detailed description.

As shown in fig. 1 to 5, a mold arc core-pulling mechanism may include a slider 1 and a guide assembly 2. Wherein the guide assemblies 2 are fixedly mounted on opposite sides of the front template 3 of the mold and have circular arc guide slots 20 thereon. The slide block 1 includes a body 11 and cylindrical protrusions 12 at both ends of the body 11, the body 11 is slidably installed in a rear mold (specifically, a rear mold plate 4 and a rear mold core 5) of a mold and the cylindrical protrusions are movably received in the circular arc guide grooves, and a plurality of circular arc inserts 13 are fixedly provided on the body 11. The arc insert 13 is located in a molding cavity formed by the front mold core (not shown) and the rear mold core 5. Because the guide assembly 2 is fixed on the front mold, when the mold is opened, the front mold is not moved, and the rear mold drives the cylindrical protrusion 12 of the slide block 1 to move along the arc guide groove 20, so that the arc insert 13 is separated from the product 100, and core pulling is realized. The circular arc core pulling mechanism is free of an oil cylinder and a gear transmission mechanism, convenient to assemble, simple in structure, small in integral die and low in manufacturing cost.

Preferably, the body 11 is integrally formed with the radiused insert 13 to save cost and simplify installation.

In this embodiment, the guide assembly 2 includes a first guide 21, a second guide 22, and a fixing block 23. The second guide 22 and the fixing block 23 are fixedly mounted on the side of the front mold plate 3. Specifically, the front and

rear mold plates

3 and 4 are provided on the sides thereof with

recesses

31 and 41, and the fixing block 23 and the second guide 22 are received in the

recesses

31 and 41 such that the outer surfaces of the fixing block 23 and the second guide 22 are flush with the sides of the front and

rear mold plates

3 and 4. The first guide 21 is fixedly mounted (e.g., by screws) on the fixed block 13 and the second guide 22. The first guide member 21 and the second guide member 22 are respectively provided with a first arc guide groove 201 and a second arc guide groove 202, and the first arc guide groove 201 and the second arc guide groove 202 are aligned with each other to form the arc guide groove 20. The lower end of the first arc guide groove 201 of the first guide member 21 is connected with a straight groove 203 with an open lower end, so that the mold closing and opening of the front mold and the rear mold are facilitated. It should be understood that the fixing block 23 and the second guide 22 may be integrally formed with the front mold plate 3 and the rear mold plate 4, respectively.

In this embodiment, the size of the outer frame formed by the fixing block 23 and the second guide 22 is the same as the size of the outer frame of the first guide 21, so that the whole mold is more flat.

In the present embodiment, the concave portion 41 of the rear mold plate 4 is provided with an opening 411, and the opening 411 has an arc surface 412 engaged with the arc surface 14 of the slider 1. This configuration facilitates the installation of the slider.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. The die arc core pulling mechanism is characterized by comprising a sliding block and a guide assembly, wherein the guide assembly is fixedly arranged on two opposite sides of a front die plate of a die and provided with an arc guide groove, the sliding block comprises a main body and cylindrical bulges positioned at two ends of the main body, the main body is slidably arranged in a rear die of the die, the cylindrical bulges are movably accommodated in the arc guide groove, a plurality of arc inserts are fixedly arranged on the main body, and the arc inserts are positioned in a forming cavity formed by a front die core and a rear die core.

2. The mold arc core pulling mechanism of claim 1, wherein the body is integrally formed with the arc insert.

3. The mold circular arc core pulling mechanism according to claim 1, wherein the guide assembly comprises a first guide member, a second guide member and a fixed block, the second guide member and the fixed block are fixedly embedded on the side surface of the front mold plate, the first guide member is fixedly installed on the fixed block and the second guide member, the first guide member and the second guide member are respectively provided with a first circular arc guide groove and a second circular arc guide groove, and the first circular arc guide groove and the second circular arc guide groove are aligned with each other to form the circular arc guide grooves.

4. The mold arc core pulling mechanism according to claim 3, wherein the outer frame size of the fixing block and the second guide member is identical to the outer frame size of the first guide member.

5. The mold arc core pulling mechanism according to claim 3, wherein the front mold plate and the rear mold plate of the mold are provided with recesses on the sides thereof, and the fixing block and the second guide are received in the recesses such that the outer surfaces of the fixing block and the second guide are flush with the sides of the front mold plate and the rear mold plate.

6. The mold arc core pulling mechanism according to claim 5, wherein the recess of the back mold plate is provided with an opening having an arc surface engaged with the slider.