CN210817471U

CN210817471U - Die set

Info

Publication number: CN210817471U
Application number: CN201921904680.4U
Authority: CN
Inventors: 周浪
Original assignee: Suzhou Yu'anjun Precision Technology Co ltd
Current assignee: Suzhou Yu'anjun Precision Technology Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-06-23
Anticipated expiration: 2029-11-06

Abstract

The utility model discloses a mold, include: cover half subassembly and movable mould subassembly, the movable mould subassembly still includes ejecting unit, the movable mould benevolence and is located the movable mould core of movable mould benevolence, and movable mould benevolence includes a plurality of lug and a plurality of concave part that is the circumferencial direction and distributes with the cover half benevolence matched with, the movable mould core include with the slider that a plurality of lug interval set up, be located slide rail in a plurality of concave part and being located a plurality of slider with the cylinder core at a plurality of slide rail center, the cylinder core a plurality of slider a plurality of lug with constitute a shaping die cavity between the cover half benevolence. The utility model discloses a mould adopts new side direction slider mechanism, has both simplified mould processing technology flow, still more accurate assurance the precision of slider combination.

Description

Die set

Technical Field

The utility model relates to a mould field belongs to the forming die of a metalwork.

Background

In the prior art, when a product is an annular metal part, especially an annular metal part with a hole in the lateral direction is molded, a lateral sliding block mechanism of a traditional mold is complex, so that a mold processing process is complex. In addition, the precision of the slider combination can not be guaranteed, the roundness of the product cavity is influenced by the fit tolerance of the multi-slider combination, the precision of the cavity is beyond the tolerance range, the final product can not meet the requirement of design drawings, and the reject ratio of the product is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mould can produce the foraminiferous metalwork of this annular.

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

a mold, comprising:

the fixed die assembly comprises a fixed die base plate and a fixed die plate fixedly connected with the fixed die base plate, wherein a positioning ring penetrating through the fixed die base plate is arranged at the center of the fixed die base plate, a pouring gate corresponding to the positioning ring and a fixed die groove portion recessed from one side of the fixed die plate to the inside of the fixed die plate are arranged on the fixed die plate, the fixed die assembly further comprises a fixed die core accommodated in the fixed die groove portion and a fixed die core positioned in the fixed die core, and the fixed die core is fixed on the fixed die plate;

the movable mould component comprises a movable mould base plate, cushion blocks vertically arranged on two sides of the movable mould base plate correspondingly, and a movable mould plate fixedly connected with the movable mould base plate and the cushion blocks, wherein two cushion blocks, the movable mould base plate and the movable mould plate are enclosed to form an accommodating space together, the movable mould plate is arranged from one side of the movable mould plate to a movable mould groove part sunken in the movable mould plate, the movable mould component also comprises an ejection unit accommodated in the accommodating space, a movable mould core accommodated in the movable mould groove part and a movable mould core positioned in the movable mould core, the movable mould core comprises a plurality of convex blocks and a plurality of groove parts which are matched with the fixed mould core and distributed in the circumferential direction, the movable mould core comprises slide blocks arranged at intervals with the plurality of convex blocks, slide rails positioned in the plurality of groove parts, and cylindrical core positioned at the centers of the plurality of slide blocks and the, a molding cavity is formed among the cylindrical core, the sliding blocks, the lugs and the core insert;

the guide assembly comprises a guide pillar fixed on the fixed die base plate and a guide sleeve sleeved on the guide pillar.

Further, the fixed die assembly further comprises a runner push plate located between the fixed die base plate and the fixed die plate, the runner push plate can move relative to the fixed die base plate, and the fixed die plate can move relative to the runner push plate.

Furthermore, at least one material grabbing needle is arranged on the fixed die base plate.

Furthermore, the cavity block is provided with a containing part which is a containing cavity of the movable mold assembly and a plurality of inclined guide posts which penetrate through the cavity block and are arranged in an annular shape, and the inclined guide posts extend into the containing cavity and guide the part of the movable mold assembly.

Furthermore, the movable die assembly also comprises a supporting rod which is fixed on the movable die base plate and is used for supporting the movable die plate.

Further, the ejection unit comprises an ejector pin push plate close to the movable mould base plate, a push plate fixing plate fixedly connected with the ejector pin push plate and an ejector pin penetrating through the push plate fixing plate and arranged towards the fixed mould component.

Further, ejecting unit still includes the reset unit, the reset unit includes the release link and overlaps and establish spring on the release link.

Furthermore, the slide rail is fixed on the movable mold core, and the slide rail can limit the sliding direction of the slide block.

Furthermore, each slide block is provided with a guide post hole penetrating through the slide block, and inclined guide posts in the plurality of die cores correspondingly extend into the guide post holes one by one.

Furthermore, each slider comprises a body part, a protruding part facing the cylindrical core from the body part, and a concave part opposite to the protruding part, the movable mold core further comprises a pressing block arranged in the concave part, and the stroke of the slider on the slide rail can be finely adjusted by the pressing block.

The beneficial effects of the utility model reside in that: a forming cavity is formed among the cylindrical core, the sliding blocks, the lugs and the fixed die core and is used for forming metal parts, and a novel lateral sliding block mechanism of the die is simple in structure, so that the processing process flow of the die can be simplified, the precision of a sliding block combination is ensured more accurately, the roundness of a product cavity is not influenced by the matching tolerance of a multi-sliding block combination, and the precision of the cavity is ensured not to exceed the tolerance range; in addition, the glue inlet adopts three-point glue feeding to control the roundness out-of-round deformation amount in the injection molding process, and the dimensional tolerance and the appearance requirement of a finished product can reach or even exceed the requirements of a drawing.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.

Drawings

Fig. 1 is an overall view of the molded product of the present invention.

Fig. 2 is an overall schematic diagram of the present invention.

Fig. 3 is a first perspective view of the present invention.

Fig. 4 is a schematic diagram of the gate, the pulling pin and the stub bar.

FIG. 5 is a schematic view of the combination of the cavity block, the gate, the material pulling pin and the material head.

Fig. 6 is a perspective view of the cavity insert.

Fig. 7 is a second perspective view of the present invention.

Fig. 8 is a third perspective view of the present invention.

Fig. 9 is a perspective view of the movable mold core.

FIG. 10 is a perspective view of the movable mold core and the movable mold core assembly.

Fig. 11 is a first schematic view of the slider, the slide rail, and the cylindrical core.

FIG. 12 is a second schematic view of the slider, the slide rail, and the cylindrical core.

FIG. 13 is a sectional view of the core insert and the core insert.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model discloses a mould, this mould are used for producing the product of an annular metalwork, and this metalwork 5 includes an annular body (not reference numeral) and is located a plurality of trompils 50 on this body, advances to glue through the bikini point and controls the circularity out of round deflection of injection moulding process during this product of shaping, consequently can produce stub bar 51, specifically as shown in FIG. 1.

As shown in fig. 2 to 13, the mold comprises a fixed mold component 1, a movable mold component 2, a fixed component 3 and a guide component 4, wherein the fixed mold component 1 is opposite to the movable mold component 2 in position and is used for matching with a formed metal piece 5, and the guide component 4 is used for guiding the relative position of the movable mold component 2 and the fixed mold component 1, so that no deviation is ensured to ensure the quality of the metal piece 5. When this mould need put in storage, can fix through fixed subassembly 3 fixed cover half subassembly 1 with movable mould subassembly 2 for both are closed each other, can avoid the inside original paper of mould to receive the damage when guaranteeing the assembly precision of metalwork 5.

Specifically, the fixed die assembly 1 comprises a fixed die base plate 10, a runner push plate 12 located below the fixed die base plate 10, and a fixed die plate 11 located below the runner push plate 12. When mutual separation between cover half subassembly 1 and the movable mould subassembly 2, the stub bar 51 of product will remain on cover half subassembly 1, in order to separate stub bar 51 and cover half subassembly 1, the utility model discloses a be equipped with 3 on the cover half bedplate 10 and grab material needle 101, it can drive the stub bar and break away from the product to grab material needle 101. The runner push plate 12 and the fixed die base plate 10 can move relatively to separate the material grabbing needle 101 from the material head 51. The runner push plate 12 and the fixed die plate 11 can also be separated from each other to push out the separated stub bars 51. The central point of the fixed mold base plate 10 is provided with a positioning ring 13 which runs through the fixed mold base plate 10, the fixed mold plate 11 is provided with a sprue 14 corresponding to the positioning ring 13 and a fixed mold groove part (not shown) which is recessed from one side of the fixed mold plate 11 to the inside of the fixed mold plate 11, the positioning ring 13 corresponds to a gun platform position on the injection molding machine and is used for guiding the gun platform to enable the injection molding machine to accurately inject rubber materials into the mold, and the sprue 14 is used for guiding the injection molding rubber materials to enter the mold.

The fixed die assembly 1 further comprises a fixed die core 16 accommodated in the fixed die groove part and a fixed die core positioned in the fixed die core 16, and the fixed die core is used for being matched with the movable die assembly 2 to form the metal piece 5. The cavity 16 is recessed with a receiving cavity 161 for receiving a portion of the movable mold assembly 2. The fixed die core comprises a plurality of inclined guide posts 15 which penetrate through the fixed die core 16 and are arranged in an annular mode, and the inclined guide posts 15 extend into the accommodating cavities 161 and guide the part of the movable die assembly 2.

The movable mould component 2 comprises a movable mould base plate 20, cushion blocks 21 which are correspondingly and vertically arranged on two sides of the movable mould base plate 20 and movable mould plates 22 fixedly connected with the movable mould base plate 20 and the cushion blocks 21, wherein the cushion blocks 21, the movable mould base plate 20 and the movable mould plates 22 jointly enclose a containing space. The movable mold assembly 2 further comprises 4 support rods 23 accommodated in the accommodating space and fixed on the movable mold base plate 20, and the support rods 23 are used for supporting the movable mold plate 22 and preventing the movable mold plate 22 from deforming. A movable mold recess (not shown) in which the movable mold 22 is recessed from the movable mold 22 toward the inside of the movable mold 22. The movable mold assembly 2 further comprises an ejection unit accommodated in the accommodating space, a movable mold core 24 accommodated in the groove portion of the movable mold, and a movable mold core 240 located in the movable mold core 24. The movable mold base plate 20, the cushion block 21 and the movable mold plate 22 are sequentially arranged from bottom to top, and the fixed mold base plate 10, the runner push plate 12 and the fixed mold plate 11 are sequentially arranged from top to bottom, so that the fixed mold component 1 and the movable mold component 2 can be relatively matched.

The ejection unit comprises an ejector pin push plate 25 arranged close to the movable mold base plate 20, a push plate fixing plate 26 fixedly connected with the ejector pin push plate 25, and an ejector pin 27 penetrating through the push plate fixing plate 26 and arranged towards the fixed mold assembly 1. An ejector rod (not shown) is arranged on the injection molding machine, an ejector rod through hole (not shown) matched with the ejector rod is arranged on the movable mold base plate 20, the ejector rod penetrates through the ejector rod through hole and is abutted against the ejector pin push plate 25, and therefore when the injection molding machine pushes the ejector rod, the ejector rod is pushed and sequentially pushes the ejector pin push plate 25 and the push plate fixing plate 26 to move together along the movement direction of the ejector rod. The ejector plate retainer plate 26 and the ejector plate 25 also cooperate to retain one end of the ejector pin 27 so that the ejector pin 27 can be pushed by the ejector rod to move toward the fixed die assembly 1. The ejector pin 27 is matched with the metal piece 5 to be injected, and the metal piece 5 can be ejected out of the movable mold core 24 after the mold is opened.

The ejection unit further comprises a reset unit 28, the reset unit 28 comprises a reset rod 281 and springs 282 sleeved on the reset rod 281, the number of the reset rod 281 and the number of the springs 282 are set to be 4, and the springs are uniformly distributed on 4 corners of the push plate fixing plate 26. Reset lever 281 one end is spacing be in between push pedal fixed plate 26 and the thimble push pedal 25, the other end can be free run through movable mould board 22 and with the fixed die plate 11 butt, the reset lever centers on the thimble 27 sets up, consequently reset lever 281 can lead push pedal fixed plate 26, thimble push pedal 25 and thimble 27 avoid thimble 27 to remove crooked and receive the damage. When the ejector pin 27 pushes the product, the reset rod can assist in pushing the fixed die plate 11. The spring 282 has a portion that extends into the movable platen 22 to limit its position relative to the movable platen 22, and another portion that is disposed to protrude from the movable platen 22 and the protruding portion abuts against the push plate fixing plate 26. When the mold is opened, the ejector pins 27 are pushed out by ejector pins of the injection molding machine, the product is taken out, the ejector pins retract, the ejector units are reset by the elastic force of the springs 282, and the mold is closed. However, when the spring 282 fails or the reset fails due to external reasons, and the mold is clamped, the reset rod 281 can directly abut against the fixed mold plate 11, so as to prevent the ejector pin 27 from being directly acted by the clamping force, and further protect the ejector pin 27 from being damaged.

The movable mold core 24 includes a plurality of protrusions 241 and a plurality of grooves 242, which are matched with the receiving cavities 161 of the fixed mold core 16, and the plurality of protrusions 241 and the plurality of grooves 242 are uniformly distributed along the circumferential direction. The movable mold core 240 comprises a sliding block 240a arranged at intervals with a plurality of convex blocks 241, a sliding rail 240b arranged in a plurality of groove parts 242 and a cylindrical mold core 240c arranged at the center of the plurality of sliding blocks 240a and the plurality of sliding rails 240b, a cavity 240d is formed among the cylindrical mold core 240c, the plurality of sliding blocks 240a, the plurality of convex blocks 241 and the fixed mold core 16, and the shape of the cavity 240d is consistent with that of the metal piece 5. The plurality of sliding blocks 240a and the plurality of sliding rails 240b are uniformly distributed in the circumferential direction, the sliding blocks 240a can slide on the sliding rails 240b, and the sliding rails 240b can limit the sliding direction of the sliding blocks 240 a. The slide rail 240b is fixed to the movable mold core 24. Each of the sliding blocks 240a is provided with a guide post hole 203 penetrating through itself, and the inclined guide posts 15 in the plurality of core inserts 16 correspondingly extend into the guide post holes 203 one by one. The diameter of the angle beam 15 is slightly smaller than the diameter of the beam hole 203, and the angle beam 15 can drive the sliding block 240a to move along the sliding rail 240b when moving. Each of the sliders 240a includes a body portion 240a-1, a protrusion 240a-2 facing the cylindrical core 240c from the body portion 240a-1, and a recess 240a-3 opposite to the protrusion 240a-2, the guide hole 203 is opened on the body portion 240a-1, and the protrusion 240a-2 is used for forming the opening 50 on the metal member 5. The movable mold core 240 further includes a pressing piece 240e provided in the recess 240a-3, the pressing piece 240e being fitted to the shape of the recess 240a-3 and fastened to the body portion 240a-1 by a screw 240f for fine adjustment of a stroke 240b of the slider 240a on the slide rail. Specifically, when the protrusion 240a-2 of the slider 240a moves too much toward the cavity 240d, the thickness value of the pressing piece 240e in the moving direction of the slider 240a may be reduced by grinding, whereas, when the protrusion 240a-2 of the slider 240a moves too little toward the cavity 240d, the thickness value of the pressing piece 240e in the moving direction of the slider 240a may be increased by replacing the pressing piece 240e or adding a spacer. The sliding block 240a slides on the inclined guide post until the outer walls of the sliding block 240a and the projection 241 abut against the inner wall of the core insert 16, and then it is determined that the sliding block 240a has moved in place.

The utility model discloses in, when the fort of injection molding machine passes through runner 14 with the material and pours into cavity 240d into, can the shaping metalwork 5, the ejecting unit of rethread is ejecting with metalwork 5, accomplishes whole process of moulding plastics so far.

The guide assembly 4 includes a guide post 41 and a guide sleeve 42 sleeved on the guide post. The number of the guide columns 41 is 4, the guide columns are uniformly distributed at 4 corners of the fixed die base plate 10 and are limited between the fixed die base plate 10 and the injection molding machine. One end of the guide post 41 is clamped in the fixed mold base plate 10, and the other end of the guide post can freely extend into the cushion block 21. The fixed die assembly 1 and the movable die assembly 2 are both provided with guide sleeves 42, and the guide sleeves 42 are correspondingly matched with the guide columns 41 and are uniformly distributed on 4 corners of the fixed die plate 11 and the movable die plate 22. When the mold is opened, the guide post 41 is separated from the guide sleeve 42 in the movable mold plate 22, the movable mold component 2 is far away from the fixed mold component 1, when the mold is closed, the guide post 41 penetrates the guide sleeve 42 in the movable mold plate 22, and the movable mold component 2 and the fixed mold component 1 form a cavity 240d for molding the metal piece 5.

The fixed assembly 3 comprises a fixed strip 31, fixing holes are formed in two ends of the fixed strip 31, and screws 32 or bolts 32 fix the fixed strip 31 on the fixed template 11 and the movable template 22 through the two fixing holes, so that the relative positions of the fixed mold assembly 1 and the movable mold assembly 2 are guaranteed to be unchanged.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A mold, comprising:

2. A mold as in claim 1, wherein: the fixed die assembly further comprises a runner push plate located between the fixed die base plate and the fixed die plate, the runner push plate can move relative to the fixed die base plate, and the fixed die plate can move relative to the runner push plate.

3. A mold as in claim 2, wherein: the fixed die base plate is provided with at least one material grabbing needle.

4. A mold as in claim 3 wherein: the fixed die core is provided with a plurality of inclined guide posts which penetrate through the fixed die core and are arranged annularly, and the inclined guide posts extend into the accommodating cavity and guide the part of the movable die assembly.

5. A mold in accordance with claim 4 wherein: the movable mould component also comprises a supporting rod which is fixed on the movable mould base plate and used for supporting the movable mould plate.

6. A mold in accordance with claim 5 wherein: the ejection unit comprises an ejector pin push plate close to the moving die base plate, an ejector plate fixing plate fixedly connected with the ejector pin push plate and an ejector pin penetrating through the ejector plate fixing plate and arranged towards the fixed die assembly.

7. A mold in accordance with claim 6, wherein: the ejection unit further comprises a reset unit, and the reset unit comprises a reset rod and a spring sleeved on the reset rod.

8. A mold in accordance with claim 7, wherein: the slide rail is fixed on the movable mould core, and the slide rail can limit the sliding direction of the slide block.

9. A mold in accordance with claim 8, wherein: each slide block is provided with a guide post hole penetrating through the slide block, and inclined guide posts in the plurality of die cores correspondingly extend into the guide post holes one by one.

10. A mold in accordance with claim 9, wherein: each sliding block comprises a body part, a protruding part facing the cylindrical core from the body part, and a concave part opposite to the protruding part, the movable mold core further comprises a pressing block arranged in the concave part, and the stroke of the sliding block on the sliding rail can be finely adjusted through the pressing block.