CN114619628B

CN114619628B - Mold capable of switching inserts in mold

Info

Publication number: CN114619628B
Application number: CN202210091714.2A
Authority: CN
Inventors: 聂绍江; 肖梦媚; 谢迪皋
Original assignee: Hangzhou Honyar Electrical Co Ltd
Current assignee: Hangzhou Honyar Electrical Co Ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2023-05-05
Anticipated expiration: 2042-01-26
Also published as: CN114619628A

Abstract

The invention discloses a die capable of switching an insert in a die, which comprises an upper die core and an insert assembly arranged on the upper die core, wherein the insert assembly comprises a fixed core and a sliding insert in sliding fit with the fixed core, the sliding insert is driven to slide up and down by an insert driving structure, and the insert driving structure comprises a base, a transmission slide block capable of sliding along the base and driving the sliding insert to slide up and down, and a driving piece for driving the transmission slide block to slide. According to the technical scheme, when the insert is switched, acting force can be applied to the driving piece from outside, and the driving piece drives the transmission sliding block to drive the sliding insert to slide up and down, so that the insert can be switched in the die.

Description

Mold capable of switching inserts in mold

Technical Field

The invention belongs to the technical field of molds, and particularly relates to a plastic mold with an insert.

Background

In the design process of plastic products, different functional design requirements are required, and two parts with the same size and similar structure and only locally different are designed. In order to reduce development cost and die sinking cost, the existing method in the existing die design and manufacture is to design an insert at a part with difference, and two plastic products with different functions are injection molded by replacing the insert.

However, in this state, only one set of inserts is assembled in the mold, and the other set of inserts needs to be stored separately, and professional mold fitters need to operate when the inserts are replaced.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a die capable of switching an insert in the die without disassembling the die.

In order to solve the technical problems, the invention adopts the following technical scheme: the utility model provides a mould of switchable mold insert in mould, includes mould benevolence and locates the mold insert subassembly of mould benevolence, the mold insert subassembly include fixed core piece and with fixed core piece sliding fit's slip mold insert, the slip mold insert is slided from top to bottom by the driving structure drive of mold insert, the driving structure of mold insert includes the base, can follow the base and slide and drive the gliding transmission slider of slip mold insert from top to bottom, be used for driving the gliding driving piece of transmission slider.

Preferably, the sliding insert is provided with a guiding inclined chute, and the transmission sliding block is provided with an inclined hanging table in sliding hanging fit with the guiding inclined chute.

Preferably, the driving piece is a screw rod, and the transmission sliding block is provided with a screw hole matched with the screw rod.

Preferably, the screw is provided with an inner hexagonal screw head; and/or the screw is provided with a check ring, and the base is provided with a check ring positioning groove matched with the check ring.

Preferably, the sliding insert is a sliding sleeve which is slidably nested outside the fixed core.

Preferably, the upper ends of the fixed core piece and the sliding sleeve are correspondingly provided with upper grooves for the transmission sliding block to slide through, and the guiding inclined sliding grooves are formed in two opposite side walls of the upper grooves on the sliding sleeve.

Preferably, the upper end of the transmission sliding block is provided with an upper guide hanging table which extends horizontally, and the opposite side walls of the upper end of the fixed core piece, which is grooved on the fixed core piece, are provided with upper guide grooves which are matched with the upper guide hanging table in a sliding guide manner.

Preferably, a cover plate is covered above the base, and the cover plate and the upper guide groove are matched to limit the upper guide hanging table up and down.

Preferably, two transmission sliding blocks are arranged along the horizontal sliding direction, the two transmission sliding blocks are connected through a connecting block, and an upper sliding rail and a lower sliding rail are arranged between the transmission sliding blocks and the connecting block.

Preferably, the upper slide rail and the lower slide rail comprise T-shaped grooves arranged on the connecting blocks and T-shaped parts in sliding fit with the T-shaped grooves.

According to the technical scheme, the insert assembly comprises the fixed core piece and the sliding insert which is in sliding fit with the fixed core piece, when the insert is switched, acting force can be applied to the driving piece outside, the driving piece drives the transmission sliding block to drive the sliding insert to slide up and down, the fixed core piece and the sliding insert are switched back and forth, and a die does not need to be disassembled, so that the insert can be switched in the die.

The specific technical scheme adopted by the invention and the beneficial effects brought by the technical scheme are disclosed in the following detailed description in combination with the drawings.

Drawings

The invention is further described with reference to the drawings and detailed description which follow:

FIG. 1 is a schematic diagram of an exploded construction of the present invention;

FIG. 2 is a top view of the present invention (sliding sleeve sliding up to complete insert switching);

FIG. 3 is a cross-sectional view A-A of FIG. 2;

FIG. 4 is a top view of the present invention (sliding sleeve sliding down to complete insert switching);

FIG. 5 is a cross-sectional view B-B of FIG. 4;

in the figure: a lower die core 1; an upper die core 2; a base 3; a groove 301; side openings 302, retainer ring positioning slots 303; an upper core fixing screw 304; a right transmission slide block 4; an inclined hanging table 401; an upper guide hanging table 402; a connecting block 5; a left driving slide block 6; a fixed core 7; an upper guide groove 701; an inner upper slot 702; a sliding sleeve 8; an outer upper slot 801; a guide chute 802; a screw 9; a retainer ring 901; a cover plate 10; cover plate fixing screws 101; and an inner hexagonal wrench 11.

Detailed Description

The technical solutions of the embodiments of the present invention will be explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention, and not all embodiments. Based on the examples in the implementation manner, other examples obtained by a person skilled in the art without making creative efforts fall within the protection scope of the present invention.

Those skilled in the art will appreciate that the features of the examples and embodiments described below can be combined with one another without conflict.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Words such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", and the like, which refer to an azimuth or a positional relationship, are merely based on the azimuth or the positional relationship shown in the drawings, and are merely for convenience of description and to simplify the description, and do not indicate or imply that the apparatus/elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus are not to be construed as limiting the present invention.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and include, for example, fixedly attached, detachably attached, or integrally attached; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1 to 5, the present invention provides a mold capable of switching inserts in the mold, comprising a lower mold core 1 and an upper mold core 2, wherein a base 3 and an insert assembly are arranged on the upper mold core 2, and a groove 301 for placing the insert assembly is correspondingly arranged on the base 3.

The insert assembly comprises a fixed core 7 fixed on the base 3 and a sliding insert in sliding fit with the fixed core 7, and the base 3 can be fixed on the upper die core 2 by an upper die core fixing screw 304. The sliding insert is driven by the insert driving structure to slide up and down, so that the switching of the inserts is realized.

As an implementation mode, the insert driving structure comprises a transmission sliding block which can slide along the base 3 and drive the sliding insert to slide up and down, and a driving piece for driving the transmission sliding block to slide. When the insert is switched, acting force can be applied to the driving piece outside, the driving piece drives the transmission sliding block to drive the sliding insert to slide up and down, the back and forth switching of the fixed core piece and the sliding insert is realized, and the mold is not required to be disassembled, so that the insert switching can be realized in the mold.

In this embodiment, the sliding insert is designed as a sliding sleeve 8 slidably nested outside the fixed core 7, the fixed core 7 is cylindrical, and the sliding sleeve 8 is cylindrical. In order to ensure that the sliding sleeve can slide up and down, a gap of 0.02mm is reserved between the inner circular side wall of the sliding sleeve and the outer circular side wall of the fixed core piece, and a gap of 0.02mm is reserved between the outer circular side wall of the sliding sleeve and the inner circular side wall of the upper die core. Of course, it will be appreciated that the mating shapes of the fixed core 7 and the sliding sleeve 8 may be varied to form a sliding fit, for example rectangular.

The technical scheme is that the insert switching is completed by sliding the sliding sleeve 8 up and down. As shown in fig. 3, after the sliding sleeve 8 slides upwards to complete the insert switching, the upper end surface of the sliding sleeve is leveled with the upper die core plane, the lower end surface forms a space distance with the lower die core plane, and the fixed core 7 bears the function of forming the insert in injection molding. As shown in fig. 5, the sliding sleeve 8 slides downwards until contacting with the plane of the lower die core to perform the penetration sealing, meanwhile, a section of the outer ring side wall of the bottom end of the sliding sleeve becomes a forming surface, the sealing is formed on the inner fixed core piece due to the sealing glue of the end surface of the sliding sleeve, and the fixed core piece 7 cannot bear the function of forming an insert in injection molding.

In this embodiment, the transmission slide is horizontally sliding, and the sliding sleeve 8 is vertically sliding. Therefore, in order to realize the conversion of the transmission direction, the transmission slide block is provided with a lower inclined surface, the sliding insert is provided with a guiding inclined chute 802, and the lower inclined surface is provided with an inclined hanging table 401 which is in sliding hanging fit with the guiding inclined chute along the extending direction. The inclined hanging platform 401 is formed by arranging hanging bosses on the left side and the right side of the lower inclined surface, and the sliding sleeve 8 can be driven to slide up and down by the left-right horizontal sliding of the transmission sliding block through the cooperation of the inclined hanging platform 401 and the guiding inclined sliding groove 802.

In order to facilitate the operation when the insert is replaced, the driving piece is designed as a screw 9, and the transmission sliding block is provided with a screw hole matched with the screw, so that the rotation of the screw is converted into linear sliding of the transmission sliding block. The end of the screw is provided with an inner hexagon screw head, and the screw is provided with a retainer ring 901. The left side of the base in fig. 1 is provided with a side hole 302, the socket head cap screw is arranged in the side hole, so that the socket head cap screw 11 can extend into the side hole, and a retainer ring positioning groove 303 is arranged on the right side of the side hole corresponding to the retainer ring 901 to limit the left-right movement of the screw. When carrying out the change operation to the mold insert, the allen wrench needs the manual work to place in the middle of the allen screw head to make allen wrench carry out clockwise and anticlockwise rotation action, allen wrench 11 drive screw rod 9 and rotate, screw rod and screw cooperation, because the positioning action of retaining ring constant head tank 303, the screw rod can not control the removal, but can drive the transmission slider and control the removal, ordinary workman can operate when changing the mold insert, need not professional mould fitter and operates.

In order to realize the cooperation of the transmission slide block and the sliding sleeve 8, the upper ends of the fixed core 7 and the sliding sleeve 8 are correspondingly provided with upper grooves for the transmission slide block to slide through, namely an inner upper groove 702 arranged on the fixed core 7, an outer upper groove 801 arranged on the sliding sleeve 8, and a guiding inclined groove 802 arranged on the front side wall and the rear side wall of the outer upper groove 801. And the depth of the inner upper groove 702 is larger than that of the outer upper groove 801, and the bottom of the inner upper groove 702 is relatively lower, so that the complete stroke of the transmission sliding block is ensured and the transmission sliding block is not interfered with the fixed core piece 7 when the insert is switched.

Further, the upper end of the driving slider 4 is provided with an upper guiding hanging table 402 extending horizontally, and the opposite side walls of the upper end of the upper slot of the fixed core member are provided with upper guiding grooves 701 in sliding guiding fit with the upper guiding hanging table. The cover plate 10 is covered above the base 3, and the cover plate can be fixed on the base by a plurality of cover plate fixing screws 101. The cover plate not only covers the groove 301, but also fixes the fixed core, and meanwhile, the cover plate and the upper guide groove 701 cooperate to limit the upper guide hanging table 402 up and down. Wherein the apron is spacing in going up, goes up the guide way and is spacing down and spacing around going up. After the sliding sleeve 8 slides upwards to finish the insert switching, the upper end surface of the sliding sleeve contacts with the bottom surface of the fixed core hanging table to stop moving.

It will be appreciated that a plurality of seats 3 may be provided and that at least one insert assembly may be provided on each seat. In this embodiment, two bases are disposed side by side in front of and behind each other, and two insert assemblies are disposed side by side on each base. Correspondingly, the two transmission sliders are arranged in the left-right horizontal sliding direction, namely a right transmission slider 4 and a left transmission slider 6, and in order to realize synchronous sliding of the two transmission sliders at the same time, the two transmission sliders are connected through a connecting block 5, and the groove 301 is matched with the cover plate 10 to enable the connecting block to slide left and right, but the upper position and the lower position are fixed. Because the upper and lower positions of the connecting block are fixed, the left transmission slide block 6 and the right transmission slide block 4 can slide up and down along the base, and therefore an upper slide rail and a lower slide rail are arranged between the transmission slide block and the connecting block. Specifically, upper and lower slide rail includes the T-shaped groove that sets up on the connecting block to and transmission slider and T-shaped portion of T-shaped groove sliding fit. It will be appreciated that dovetail grooves and dovetail mating, or similar arrangements, may also be employed.

The working principle of the invention is as follows: firstly, a lower die core is arranged on a lower die plate, an insert assembly and an insert driving structure are arranged on an upper die core 2, and the upper die core 2 is arranged on an upper die plate; when the insert function needs to be switched, the socket head cap wrench 11 is manually placed in the socket head cap screw head, the socket head cap wrench is made to perform clockwise or anticlockwise rotation, the left transmission sliding block 6 is driven by the screw rod to move leftwards or rightwards, meanwhile, the right transmission sliding block 4 is connected with the left transmission sliding block 6 through the connecting block 5 to keep moving in the same direction, the sliding sleeve 8 moves upwards or downwards under the cooperation of the inclined hanging table 401 and the inclined guiding sliding groove 802, the function switching of the sliding sleeve 8 and the insert of the fixed core piece 7 is completed through the actions, the socket head cap wrench 11 is taken out, and the whole switching work is completed.

While the invention has been described in terms of embodiments, it will be appreciated by those skilled in the art that the invention is not limited thereto but rather includes the drawings and the description of the embodiments above. Any modifications which do not depart from the functional and structural principles of the present invention are intended to be included within the scope of the appended claims.

Claims

1. The mold with the insert capable of being switched in the mold comprises an upper mold core and an insert assembly arranged on the upper mold core, and is characterized in that the insert assembly comprises a fixed core and a sliding insert in sliding fit with the fixed core, the sliding insert is driven to slide up and down by an insert driving structure, and the insert driving structure comprises a base, a transmission slide block capable of sliding along the base and driving the sliding insert to slide up and down, and a driving piece for driving the transmission slide block to slide; the sliding insert is provided with a guide inclined chute, and the transmission sliding block is provided with an inclined hanging table which is in sliding hanging fit with the guide inclined chute; the sliding insert is a sliding sleeve which is nested outside the fixed core in a sliding way; the upper ends of the fixed core piece and the sliding sleeve are correspondingly provided with upper grooves for the transmission sliding blocks to slide through, and the guide inclined sliding grooves are formed in two opposite side walls of the upper grooves on the sliding sleeve; the upper end of the transmission sliding block is provided with an upper guide hanging table which extends horizontally, and upper guide grooves which are matched with the upper guide hanging table in a sliding guide manner are formed in two opposite side walls of the upper end of the fixed core piece, which is grooved on the fixed core piece.

2. The in-mold switchable insert mold of claim 1, wherein the driving member is a screw, and the driving slider is provided with a screw hole which is matched with the screw.

3. A die for an in-die switchable insert according to claim 2, wherein the screw is provided with a socket head cap screw head; and/or the screw is provided with a check ring, and the base is provided with a check ring positioning groove matched with the check ring.

4. The in-mold switchable insert mold of claim 1, wherein the base is capped above the cover plate, and wherein the cover plate and the upper guide slot cooperate to limit the upper guide rail up and down.

5. The mold for an insert switchable in a mold according to any one of claims 1 to 4, wherein two transmission sliders are provided in a horizontal sliding direction, and the two transmission sliders are connected by a connection block, and an upper and lower slide rail is provided between the transmission sliders and the connection block.

6. The in-mold switchable insert mold of claim 5, wherein the upper and lower slide rails comprise T-shaped grooves formed in the connecting blocks, and T-shaped portions of the drive blocks slidably engaged with the T-shaped grooves.