CN210702564U - Die set - Google Patents

Abstract

The utility model discloses a mold, comprising: a fixed mold assembly and a movable mold assembly, the fixed mold assembly includes a plurality of fixed mold cores located in a fixed mold core, and the movable film assembly includes an ejector unit, a movable mold core and a movable mold core. A plurality of moving model cores in the moving mold core, each moving model core includes a square through hole traversing the moving template, a square block arranged in the square through hole, and a concave hole arranged at the edge of the square through hole. shape, and two ring grooves arranged on the outside of a pair of corners of the square through hole, each square block is provided with a block groove at the center position, and each fixed mold core is matched with the movable mold core corresponding to its position to form A forming cavity. The second ejector pin is used for both ejection of the molded product and product molding, which reduces the difficulty of injection filling and ejection of the molded product, so that the product is well-injected and free of defects, and the dimensional tolerance and appearance requirements of the finished product meet or even exceed Drawing requirements, product mass production is stable.

Description

a mold

technical field

The utility model relates to the field of molds, belonging to a forming mold for metal parts.

Background technique

In the prior art, for thin-walled products, especially when the metal parts of the mobile phone camera mounting bracket are formed, the metal powder injection filling of the selected traditional molds is quite difficult, and it is also quite difficult to eject the injection-molded products. . Therefore, the dimensional accuracy of the finished product exceeds the tolerance range, the appearance does not meet the requirements of the drawings, the final product cannot meet the requirements of the design drawings, and the defective rate of the product increases.

Utility model content

The purpose of the utility model is to provide a mold, which can produce the thin-walled metal parts of the mobile phone camera mounting bracket.

To achieve the above object, the utility model provides the following technical solutions:

A mold, including:

The fixed die assembly includes a fixed die base plate and a fixed form plate fixedly connected to the fixed die base plate, the center position of the fixed die base plate is provided with a positioning ring penetrating the fixed die base plate, the fixed die plate There is a gate corresponding to the positioning ring and a fixed mold groove part recessed from one side of the fixed plate to the interior of the fixed plate. The fixed mold core of the groove part, the fixed mold core is fixed on the fixed template;

The movable die assembly includes a movable die base plate, corresponding pads vertically arranged on both sides of the movable die base plate, and a movable template that is fixedly connected to the movable die base plate and the pad. The die base plate and the movable die plate are jointly formed into a receiving space, the movable die groove part is recessed from the side of the movable die plate to the interior of the movable die plate, and the movable film assembly also includes a accommodating space. The ejecting unit of the accommodation space and the movable mold core accommodated in the groove portion of the movable mold;

The guide assembly includes a guide post fixed on the fixed die base plate and a guide sleeve sleeved on the guide post,

The fixed mold assembly further includes a plurality of fixed mold cores located in the fixed mold core, and each of the fixed mold cores is provided with a pouring port; the movable mold assembly also includes a fixed mold core located in the movable mold core. A plurality of moving model cores, each moving model core includes a square through hole traversing the moving template, a square block arranged in the square through hole, and a square block arranged in the square through hole. The concave shape of the edge of the hole, and two annular grooves arranged on the outer side of a pair of corners of the square through hole, each square block is provided with a block groove at the center position, and each of the fixed mold core and The movable mold core corresponding to its position is matched to form a molding cavity.

Further, the ejecting unit includes an ejector pin push plate disposed close to the movable die base plate, a push plate fixing plate fixedly connected to the ejector pin push plate, and a push plate fixing plate penetrating the push plate fixing plate and disposed toward the fixed die assembly. thimble.

Further, the ejector pin includes a first ejector pin for ejecting the molded product and a second ejector pin for molding the product and ejecting the molded product.

Further, the first thimble is arranged through the four corners of the square block, the second thimble is arranged through the center of the square block, and the top of the second thimble is lower than the block groove.

Further, the ejection unit further includes an orientation assembly, and the orientation assembly includes an orientation column and an orientation sleeve arranged in the ejector pin push plate and the push plate fixing plate.

Further, the ejection unit further includes a reset unit, and the reset unit includes a reset rod and a spring sleeved on the reset rod.

Further, the fixed mold core is also protruded with a convex column corresponding to the annular groove and a convex block corresponding to the block groove.

Further, the sprue passes through the bump.

Further, the number of the fixed mold cores is 4.

Further, the movable die assembly further includes a support rod fixed on the movable die base plate for supporting the movable die plate.

The beneficial effect of the present invention is that: each fixed mold core is matched with the movable mold core corresponding to its position to form a molding cavity for molding metal parts, and four molding cavities are formed, and the third molding cavity is formed. The two ejector pins are used for both ejection of molded products and product molding, thus reducing the difficulty of injection filling and ejection of molded products, so that the injection molding of the product is good, without defects, and the dimensional tolerance and appearance requirements of the finished product meet or even exceed Drawing requirements, product mass production is stable.

The above description is only an overview of the technical solution of the present utility model. In order to understand the technical means of the present utility model more clearly, and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the present utility model and the accompanying drawings as follows: back.

Description of drawings

Fig. 1 is the overall schematic diagram of the utility model.

FIG. 2 is a first three-dimensional schematic diagram of the present invention.

FIG. 3 is a second perspective schematic view of the present invention.

Fig. 4 is the third three-dimensional schematic diagram of the utility model

Figure 5 is a schematic diagram of the cooperation of the fixed mold core, the movable mold core, and the runner.

FIG. 6 is a perspective view of a fixed die core.

FIG. 7 is a first three-dimensional schematic view of the movable mold core.

FIG. 8 is a second perspective view of the movable mold core.

Figure 9 is an exploded view of the gate, the fixed mold core, the metal parts, the movable mold core, and the thimble.

Detailed ways

The specific embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

The utility model discloses a mold, which is used for producing a product of a thin-walled mobile phone camera mounting bracket metal piece 5, and the product structure is a conventional design, which will not be repeated here.

As shown in FIG. 1 to FIG. 9 , the mold includes a fixed mold assembly 1 , a movable mold assembly 2 , a fixed assembly 3 and a guide assembly 4 , and the fixed mold assembly 1 and the movable mold assembly 2 are positioned opposite to each other. , used to form the metal piece 5 , and the guide assembly 4 is used to guide the relative positions of the movable die assembly 2 and the fixed die assembly 1 to ensure that no deviation occurs to ensure the quality of the metal piece 5 . When using this mold to prepare a product, the fixed mold assembly 1 and the movable mold assembly 2 are fixed by the fixed assembly 3 , so that both are closed to each other, so as to ensure the accuracy of the metal parts 5 . And when the mold needs to be put into stock, the fixed mold assembly 1 and the movable mold assembly 2 can be fixed by the fixed assembly 3, so that both are closed to each other, which can ensure the assembly accuracy of the metal parts 5 at the same time. Avoid damage to the inner parts of the mold.

Specifically, the fixed mold assembly 1 includes a fixed mold base plate 10 , a flow channel push plate 12 located below the fixed mold base plate 10 , and a fixed mold plate 11 located under the flow channel push plate 12 . A positioning ring 13 penetrating the stationary mold seat plate 10 is provided at the center of the stationary mold base plate 10 , and a gate 14 corresponding to the positioning ring 13 and a gate 14 corresponding to the positioning ring 13 are provided on the stationary mold plate 11 . One side of the die plate 11 is a fixed die groove (not shown) recessed toward the interior of the fixed die plate 11. The positioning ring 13 corresponds to the position of the turret on the injection molding machine, and is used to guide the turret so that the injection molding machine can accurately The plastic material is injected into the mold, and the gate 14 is used to guide the injection plastic material into the mold.

The fixed die assembly 1 further includes a fixed die core 16 accommodated in the fixed die groove portion and a plurality of fixed die cores 160 located in the fixed die core 16. The fixed die cores 160 are used to communicate with the movable die. The die assembly 2 cooperates to form the metal piece 5 . In this embodiment, the number of the fixed mold cores 160 is 4, and the fixed mold cores 160 are evenly distributed in the fixed mold core 16 . Certainly, in other embodiments, the number of the fixed mold models 160 may also be other, which is not specifically limited here, but is determined according to the actual situation.

The movable die assembly 2 includes a movable die base plate 20 , a pad block 21 vertically arranged on both sides of the movable die base plate 20 , and a movable die plate 22 fixedly connected to the movable die base plate 20 and the pad block 21 , The two spacers 21 together with the movable die base plate 20 and the movable die plate 22 form a receiving space. The movable die assembly 2 further includes four support rods 23 accommodated in the accommodation space and fixed on the movable die base plate 20. The support rods 23 are used to support the movable die plate 22 to prevent any The movable template 22 is deformed. The movable die plate 22 is recessed from the movable die plate 22 side to the movable die groove portion (not shown) inside the movable die plate 22 . The movable mold assembly 2 further includes an ejector unit accommodated in the accommodating space, a movable mold core 24 accommodated in the groove portion of the movable mold, and a plurality of movable mold cores 240 located in the movable mold core 24 . In this embodiment, the number of the fixed cores 240 is four. The fixed mold cores 240 are distributed in the movable mold core 24, and each of the fixed mold cores 160 cooperates with the movable mold core 240 corresponding to its position to form a molding cavity. The movable die base plate 20, the cushion block 21, and the movable template 22 are arranged in order from bottom to top, and the fixed die base plate 10, the flow channel push plate 12, and the fixed template 11 are arranged in order from top to bottom, so that the fixed The mold assembly 1 and the movable mold assembly 2 can be matched relative to each other.

The ejecting unit includes an ejector pin push plate 25 disposed close to the movable die base plate 20 , a push plate fixing plate 26 fixedly connected to the ejector pin push plate 25 , and a push plate fixing plate 26 extending through the push plate fixing plate 26 and facing the fixed mold assembly. 1 Set the thimble 27. The ejector pin 27 includes a first ejector pin 271 for ejecting the product and a second ejector pin 272 for forming the product and ejecting the product. The injection molding machine is provided with an ejector rod (not shown), the movable die base plate 20 is provided with a ejector rod through hole (not shown) matched with the ejector rod, and the ejector rod passes through the ejector rod The through hole is in contact with the ejector pin push plate 25, so when the injection molding machine pushes the ejector pin, the ejector pin is pushed and pushes the ejector pin ejector plate 25 and the ejector pin fixing plate 26 to move along the moving direction of the ejector pin in sequence. The push plate fixing plate 26 and the ejector pin push plate 25 also jointly limit 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 cooperates with the metal part 5 to be injected, and after the mold is opened, the metal part 5 can be ejected from the movable mold core 24 . The ejecting unit further includes an orientation assembly 29 penetrating the ejector pin push plate 25 and the push plate fixing plate 26 . The orientation assembly 29 includes an orientation column 291 and an orientation sleeve 292 disposed in the ejector pin push plate 25 and the push plate fixing plate 26 . The number of the orientation columns 291 is set to two, which are distributed on both sides of the movable die base plate 20 . One end of the orientation column 291 is clamped in the movable die base plate 20 , and one end can freely extend into the movable die plate 22 . When the ejector rod is pushed and pushes the ejector pin push plate 25 and the ejector plate fixing plate 26 together to move along the moving direction of the ejector bar in sequence, the orientation assembly 29 fixes the ejector pin push plate 25 and the ejector plate fixing plate 26 move at the same time.

The ejector unit further includes a reset unit 28, and the reset unit 28 includes a reset rod 281 and a spring 282 sleeved on the reset rod 281. The reset rods 281 and the springs 282 are set to four, evenly distributed. on the four corners of the push plate fixing plate 26 . One end of the reset rod 281 is limited between the push plate fixing plate 26 and the thimble push plate 25, and the other end can freely penetrate through the movable template 22 to abut with the fixed template 11, and the reset rod surrounds the fixed template 11. The ejector pin 27 is provided, so the reset rod 281 can guide the push plate fixing plate 26 , the ejector pin push plate 25 and the ejector pin 27 , so as to avoid the ejector pin 27 from being damaged due to moving skewed. When the ejector pin 27 pushes the product, the reset rod can assist in pushing the stationary platen 11 . A part of the spring 282 penetrates deep into the movable platen 22 to limit its position relative to the movable platen 22 , and the other part protrudes from the movable platen 22 , and the protruding part abuts the push plate fixing plate 26 . When the mold is opened and the ejector pin 27 is pushed out by the ejector pin of the injection molding machine, the product is taken out, the ejector pin is retracted, the elastic force of the passable spring 282 makes the ejector unit reset, and the mold is closed. However, when the spring 282 fails or the reset fails due to external reasons, the mold is closed at this time, and the reset rod 281 can directly abut on the fixed template 11, thereby preventing the ejector pin 27 from being directly subjected to the clamping force, thereby protecting the ejector pin 27 from damage.

The present embodiment includes four identical molding cavities for the mobile phone lens bracket composed of the fixed mold core 160 and the movable mold core 240 corresponding to its position. The molding cavities are used to mold the metal parts 5, and now one molding A cavity is used as an example to illustrate. The moving mold core 240 includes a square through hole 241 traversing the moving template, a square block 242 arranged in the square through hole 241 , and a concave hole 242 arranged on the edge of the square through hole 241 . The shape 243 , and the first annular groove 244 and the second annular groove 245 are provided on the outer sides of a pair of corners of the square through hole 241 , and a block groove 2421 is provided at the center of each of the square blocks 242 . The first ejector pins 271 for ejecting the molded product are arranged through the four corners of the square block 242 , and the second ejector pins 272 for product molding and ejection of the molded product are arranged through the center of the square block 242 . , the top of the second thimble 272 is lower than the block groove 2421, and the top of the second thimble 272, the fixed mold core 160 and the movable mold core 240 cooperate to form a molding cavity. The fixed core 160 is protruded with a first protruding post 161 corresponding to the annular groove of the first annular groove 244 , a first protruding post 162 corresponding to the annular groove of the first annular groove 245 , and the block body The groove 2421 corresponds to the bump 163 . The gate passes through the center 164 of the bump 163 . The runner 141 communicating with the gate 14 is divided into four runners 141 in the fixed template 11, and the gate (not shown) corresponding to each runner 141 passes through the center of the bump 164 and enters each runner 141. In the molding cavity, it is beneficial to reduce the difficulty of injection and filling.

In the present invention, when the turret of the injection molding machine injects the material into the cavity through the gate 14, the metal part 5 can be formed, and then the metal part 5 is ejected by the ejector unit, thus completing the entire injection molding process.

The guide assembly 4 includes a guide post 41 and a guide sleeve 42 sleeved on the guide post. There are four guide posts 41 , which are evenly distributed on the four corners of the fixed die base plate 10 and are positioned between the fixed die base plate 10 and the injection molding machine. One end of the guide post 41 is clamped in the fixed die base plate 10 , and one end can freely extend into the spacer block 21 . Both the fixed die assembly 1 and the movable die assembly 2 are provided with guide sleeves 42, which are matched with the guide posts 41 and are evenly distributed on the fixed die plate 11 and the movable die plate 4 corners of 22. When the mold is opened, the guide post 41 is disengaged from the guide sleeve 42 in the movable die plate 22, the movable die assembly 2 is away from the fixed die assembly 1, and when the mold is closed, the guide post 41 penetrates The guide sleeve 42 in the movable die plate 22 , the movable die assembly 2 and the fixed die assembly 1 form a cavity for forming the metal piece 5 .

The fixing assembly 3 includes a fixing bar 31 and a fixing piece 32 . The two ends of the fixing strip 31 are provided with fixing holes. The screws 311 or the bolts 311 fix the fixing strip 31 on the fixed plate 11 and the movable plate 22 simultaneously through the two fixing holes. The four top ends of the fixing plate 32 are provided with fixing holes. , screws 321 or bolts 321 fix the fixed plate 32 on the fixed platen 11 and the movable platen 22 at the same time through two fixing holes, and the fixed plate 32 is provided between the fixed platen 11 and the movable platen 22 on each side . The fixing bars 31 and the fixing pieces 32 ensure that the relative positions of the fixed die assembly 1 and the movable die assembly 2 remain unchanged. When the mold is used to prepare products, the fixed mold assembly 1 and the movable mold assembly 2 are fixed by the fixing sheet 32 . When the mold needs to be put in stock, the fixing strip 31 and the fixing sheet 32 can be used to fix the The fixed mold assembly 1 and the movable mold assembly 2 are closed with each other.

The beneficial effect of the present invention is that: each fixed mold core and the movable mold core corresponding to its position are matched to form a molding cavity for molding the metal piece 5, and four molding cavities are formed, The second ejector pin is used for both ejecting the molded product and product molding, thus reducing the difficulty of injection filling and ejection of the molded product, making the product injection molded well and free of defects, and the dimensional tolerance and appearance requirements of the finished product meet or even match. Exceeding the drawing requirements, the product mass production is stable.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (10)

1. 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 part sunken 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 part, and the fixed die core is fixed on the fixed die plate;

the movable die assembly comprises a movable die base plate, cushion blocks correspondingly and vertically arranged on two sides of the movable die base plate, and a movable die plate fixedly connected with the movable die base plate and the cushion blocks, wherein the two cushion blocks, the movable die base plate and the movable die plate jointly enclose an accommodating space, the movable die plate is provided with a movable die groove portion recessed towards the inside of the movable die plate from one side of the movable die plate, the movable die assembly further comprises an ejection unit accommodated in the accommodating space and a movable die core accommodated in the movable die groove portion;

the guide component comprises a guide post fixed on the fixed die base plate and a guide sleeve sleeved on the guide post,

the fixed die assembly is characterized by further comprising a plurality of fixed die cores positioned in the fixed die core, and each fixed die core is provided with a pouring gate; the movable mould subassembly is still including being located a plurality of movable mould cores in the movable mould benevolence, every movable mould core includes that one crosses movable mould board's square through hole, setting are in square block in the square through hole, setting are in the spill at square through hole edge and setting are in two annulars in a square through hole diagonal angle outside, every square block central point puts and is provided with the block recess, every the cover half core with correspond rather than the position movable mould core cooperation is in order to constitute a shaping die cavity.

2. The mold according to claim 1, wherein the ejection unit comprises a pin pushing plate disposed adjacent to the movable mold base plate, a plate fixing plate fixedly connected to the pin pushing plate, and a pin penetrating the plate fixing plate and disposed toward the stationary mold assembly.

3. The mold of claim 2, wherein said ejector pins comprise a first ejector pin for ejecting the molded product and a second ejector pin for molding the product and ejecting the molded product.

4. The mold of claim 3, wherein said first pins are disposed through the four corners of said square block, said second pins are disposed through the center of said square block, and the top ends of said second pins are lower than said block recess.

5. The mold of claim 2, wherein the ejection unit further comprises an orientation assembly, the orientation assembly comprising an orientation post and an orientation sleeve disposed within the ejector push plate and the push plate retainer plate.

6. The mold of claim 5, 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.

7. The mold of claim 1, wherein the fixed mold core is further provided with a projection corresponding to the ring groove and a projection corresponding to the block groove.

8. A mold as in claim 7 wherein said gate extends through said boss.

9. A mold as claimed in claim 7, wherein the fixed mold core is provided in a number of 4.

10. The mold of claim 1, wherein said movable mold assembly further comprises a support bar fixed to said movable mold base plate for supporting said movable mold plate.

Images