CN209755944U

CN209755944U - Synchronous forming die of two products

Info

Publication number: CN209755944U
Application number: CN201920602691.0U
Authority: CN
Inventors: 魏治中
Original assignee: Chengdu Fengyixin Plastic Mould Technology Co Ltd
Current assignee: Chengdu Fengyixin Plastic Mould Technology Co Ltd
Priority date: 2019-04-28
Filing date: 2019-04-28
Publication date: 2019-12-10
Anticipated expiration: 2029-04-28

Abstract

The utility model provides a double-product synchronous forming die, which relates to the technical field of injection molds and comprises a middle template, a left template and a right template which are respectively spliced on two sides of the middle template, wherein a first product cavity is arranged between the left template and the middle template, and a second product cavity is arranged between the right template and the middle template; the middle template is provided with a fixing buckle; a first ejection mechanism connected with an ejector rod of the injection molding machine is arranged on one side of the left template away from the middle template, and a second ejection mechanism is arranged on one side of the right template away from the middle template; a sprue bush communicated with the second product cavity is arranged on the right template, and an inlet of the sprue bush faces one side of the second ejection mechanism; the first product cavity is communicated with the second product cavity through the middle rubber channel. The problem of one set of injection mold can only form a product among the prior art and lead to product processing cost high is solved.

Description

Synchronous forming die of two products

Technical Field

The utility model relates to an injection mold technical field especially relates to a synchronous forming die of two products.

Background

The injection mold is a tool for producing plastic products, has high processing efficiency, and can form plastic parts with complex structure, precise size and good internal quality in a large scale. However, the injection mold itself is complicated in design and manufacturing process and high in cost.

One set of the existing injection mold can only be used for processing one product, namely one product needs to be designed and manufactured, and for some products with similar appearance size and consistent material color, if two sets of injection molds are used for processing, the production cost of the product is increased, the time from design to market investment of the product is prolonged, and the popularization of the product is not facilitated.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem among the prior art, the utility model provides a two synchronous forming die of product can the product of two kinds of isotructures of shaping through one set of mould, has solved one set of injection mold among the prior art and can only shaping a product and lead to the problem that product processing cost is high.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

The double-product synchronous forming die comprises a middle die plate, a left die plate and a right die plate which are spliced on two sides of the middle die plate respectively, wherein a first product cavity is formed between the left die plate and the middle die plate, and a second product cavity is formed between the right die plate and the middle die plate;

The middle template is provided with a fixing buckle; a first ejection mechanism connected with an ejector rod of the injection molding machine is arranged on one side of the left template away from the middle template, and a second ejection mechanism is arranged on one side of the right template away from the middle template;

A sprue bush communicated with the second product cavity is arranged on the right template, and an inlet of the sprue bush faces one side of the second ejection mechanism; the first product cavity is communicated with the second product cavity through the middle rubber channel.

Furthermore, the second ejection mechanism comprises a second ejector pin panel, a second ejector pin bottom plate and a fixing panel which are sequentially overlapped, a second ejector pin is fixed on the second ejector pin panel and the second ejector pin bottom plate in a matched mode, the second ejector pin penetrates through the right template in a sliding mode and is introduced into the second product cavity, an air cylinder is fixed on the right template, and the second ejector pin bottom plate is fixed on a piston rod of the air cylinder. And the cylinder drives the second ejection mechanism to demold the second product in the right template.

Furthermore, the top surface and the bottom surface of the right template are respectively and symmetrically provided with an air cylinder. The cylinders which are symmetrically arranged improve the demoulding stability of the second ejection mechanism.

Furthermore, a nozzle hole for the injection molding machine nozzle to penetrate through and be coaxial with the sprue bush is formed in the second thimble panel, the second thimble bottom plate and the fixing panel. The nozzle hole supplies the nozzle of moulding plastics to pass through, avoids the setting of second ejection mechanism to influence the normal of moulding plastics of nozzle of moulding plastics.

Furthermore, the first ejection mechanism comprises a first ejector pin panel, a first ejector pin bottom plate and a fixed bottom plate which are sequentially overlapped, a first ejector pin is fixed on the first ejector pin panel and the first ejector pin bottom plate in a matched mode, and the first ejector pin penetrates through the right template in a sliding mode and is introduced into the first product cavity. And pushing the first ejector pin panel and the first ejector pin bottom plate to drive the first ejector pin to eject the first product out of the left template, so as to complete the demolding of the first product.

Furthermore, a top rod hole for the top rod of the injection molding machine to pass through is formed in the fixed bottom plate. So that the first ejection mechanism can be directly ejected by the ejector rod on the injection molding machine.

Furthermore, the fixed panel and the fixed bottom plate are both fixed with guide posts and support posts, the right template or the left template is connected to the corresponding guide posts in a sliding manner, and the right template or the left template is abutted to the corresponding support posts. The guide post is used for guiding the ejector plate on the ejection mechanism at the corresponding end, so that the sliding stability of the ejector plate is improved; the support column is used for supporting the left template or the right template on the corresponding side, and template deformation caused by injection molding pressure is prevented.

Furthermore, three middle glue channels are uniformly distributed between the first product cavity and the second product cavity along the circumference. The speed of the molten glue entering the first product cavity from the second product cavity is improved by arranging the three middle glue channels, and the three middle glue channels are uniformly distributed along the circumference, so that the molten glue enters the first product cavity more uniformly, and the forming quality of the first product is improved.

Furthermore, the middle template, the left template and the right template are all provided with water conveying channels. The water conveying channels are arranged on the two sides of the first product cavity and the second product cavity, the cooling efficiency and the cooling uniformity of the product are improved by conveying water, and the forming quality of the product is improved.

The utility model has the advantages that: the two products with similar overall dimensions and consistent materials can be molded through the mold, the processing of two different products can be simultaneously completed through one-time injection molding, the mold manufacturing cost and the product processing cost are reduced, and the product processing efficiency is improved.

The mold can be directly applied to the existing injection molding machine, the sprue bush is arranged on the right template, the injection nozzle penetrates through the nozzle hole and is inserted into the sprue bush to inject glue into the mold, the melt glue enters the second product cavity and then enters the first product cavity through the middle glue channel, and two different products are formed in the two cavities by cooling; the demolding of the first product is realized by pushing the first ejection mechanism to perform direct demolding through the ejector rod of the injection molding machine, the second product is realized by pushing the second ejection mechanism to perform demolding through the air cylinder, the demolding processes of the two products are mutually free of interference, the demolding process is stable, and the molding quality of the products is improved.

Drawings

Fig. 1 is a three-dimensional structure diagram of a double-product synchronous forming die.

Fig. 2 is a left side view of the double product synchronous molding die.

Fig. 3 is a schematic structural view of a cross-sectional view taken along a-a in fig. 2, rotated 90 ° counterclockwise.

Wherein, 1, intermediate template; 101. a fixing buckle; 2. a left template; 3. a right template; 4. a first product cavity; 5. a second product cavity; 6. a first ejection mechanism; 61. a first thimble; 62. a first thimble panel; 63. a first thimble base plate; 64. fixing the bottom plate; 65. a top stick hole; 7. a second ejection mechanism; 71. a second thimble; 72. a second thimble panel; 73. a second thimble base plate; 74. fixing the panel; 75. a nozzle hole; 8. a sprue bush; 9. a middle glue channel; 10. a water carrying channel; 11. a guide post; 12. a support pillar; 13. a cylinder; 131. a piston rod.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1 to 3, the double-product synchronous forming mold comprises a middle template 1, and a left template 2 and a right template 3 respectively spliced on two sides of the middle template 1, wherein two lifting eye screws serving as fixing buckles 101 are connected to the top surface of the middle template 1 in a threaded manner. The junction of middle template 1 and left template 2 is first die joint face, and the junction of middle template 1 and right template 3 is the second die joint face. The left and right parts of a first product cavity 4 are respectively processed on the opposite end surfaces of the left template 2 and the middle template 1, and the left and right parts of a second product cavity 5 are respectively processed on the opposite end surfaces of the right template 3 and the middle template 1. The middle template 1, the left template 2 and the right template 3 are all provided with water conveying channels 10, and the water conveying channels 10 are used for conveying water to accelerate the cooling of the cavities of the two products.

A sprue bush 8 is mounted at the center of the right template 3, the sprue bush 8 penetrates through the right template 3 in the thickness direction, and the sprue bush 8 is an injection mold standard component. The first product cavity 4 is communicated with the second product cavity 5 through an intermediate rubber channel 9, and three intermediate rubber channels 9 are uniformly distributed between the first product cavity 4 and the second product cavity 5 along the circumference. The injection nozzle of the injection molding machine injects the melt adhesive into the second product cavity 5 from the sprue bush 8, and the melt adhesive flows through the intermediate adhesive channel 9 and enters the first product cavity 4.

One side of the left template 2, which is far away from the middle template 1, is provided with a first ejection mechanism 6 connected with an ejector rod of the injection molding machine, the first ejection mechanism 6 comprises a first ejector pin panel 62, a first ejector pin bottom plate 63 and a fixed bottom plate 64 which are sequentially overlapped, and the fixed bottom plate 64 is connected to the injection molding machine. The first ejector pin 61 is inserted from the bottom end of the first ejector pin plate 62 to the bottom surface of the first product cavity 4, the first ejector pin base plate 63 is connected to the bottom surface of the first ejector pin plate 62 by screws to abut against the first ejector pin 61, so that the first ejector pin 61 is fixed to the overlapped first ejector pin plate 62 and first ejector pin base plate 63, and the first ejector pin 61 can be moved along the axial direction thereof by pushing the first ejector pin base plate 63. The first thimble 61 is in clearance fit with the left template 2.

the fixed base plate 64 is formed with a through hole penetrating the thickness thereof, the through hole is a knock rod hole 65 through which a knock rod of the injection molding machine passes, and the knock rod of the injection molding machine passes through the knock rod hole 65 to push the thimble 61 to move along the axial direction thereof.

And a second ejection mechanism 7 is arranged on one side of the right template 3, which is far away from the middle template 1. The second ejector mechanism 7 includes a second ejector pin panel 72, a second ejector pin base plate 73, and a fixing panel 74, which are sequentially overlapped, and the fixing panel 74 is connected to the injection molding machine. The second ejector pin 71 is inserted from the top end of the second ejector pin plate 72 to the top surface of the second product cavity 5, the second ejector pin base plate 73 is connected to the top surface of the second ejector pin plate 72 by screws to abut against the second ejector pin 71, so that the second ejector pin 71 is fixed to the overlapped second ejector pin plate 72 and second ejector pin base plate 73, and the second ejector pin 71 can be moved along the axial direction thereof by pushing the second ejector pin base plate 73. The second thimble 71 is in clearance fit with the right template 3.

And the top surface and the bottom surface of the right template 3 are respectively and symmetrically provided with a cylinder 13. The cylinder portion of the cylinder 13 is mounted on the right mold plate 3, and a mounting block is fixed to the end of the piston rod 131 and fixed to the second thimble base plate 71. The second ejector pin 71 is driven to move along the axial direction thereof to eject the second product by controlling the extension and contraction of the piston rod 131, i.e. pulling or pushing the second ejector pin base plate 73 to move along the axial direction of the second ejector pin 71.

The second ejector pin panel 72, the second ejector pin base plate 73 and the fixing panel 74 are provided with nozzle holes 75 through which the injection nozzle of the injection molding machine passes and which are coaxial with the sprue bush 8, and during injection molding, the injection nozzle of the injection molding machine passes through the nozzle holes 75 and is inserted into the sprue bush 8 for injection molding. The influence of the arrangement of the second ejection mechanism 7 on the injection molding of the injection molding nozzle is avoided.

The guide posts 11 and the support posts 12 are fixed on the fixing panel 74 and the fixing base plate 64 by screws. The guide post 11 sequentially penetrates through the thimble base plate and the thimble panel on the corresponding side and is inserted into a counter bore on the right template 3 or the left template 2, the counter bore is in clearance fit with the guide post 11, and the thimble base plate and the thimble panel are guided by the guide post 11, so that the sliding stability is enhanced. The 12 clearances of support column pass the thimble bottom plate and the thimble panel of corresponding side and with right template 3 or 2 butts of left template, because the thickness of each plate is limited in the mould, can give an axial pressure of mould when the injection molding machine is moulded plastics, through the support of support column 12, can prevent that right template 3 or left template 2 that injection pressure leads to warp, improve the shaping quality of product.

The mold can be directly applied to a common injection molding machine, and is different from the processing process of a common mold in that after a product is cooled and formed, the mold can be released from both sides of the middle template 1. The middle template 1 penetrates through the fixing buckle 101 through the fixing rope to be fixed on the injection molding machine, and when parting is prevented, the middle template 1 is driven by the injection molding machine to move along with the left template 2 or the right template 3.

After the molding is finished, the injection molding machine drives the left template 2 and the middle template 1 to be separated through the fixed bottom plate 64, the first product is separated from a cavity on the middle template 1 along with the left template 2, and then the injection molding machine pushes the first ejector pin bottom plate 63 through the ejector rod to separate the first product from the left template 2; one injection molding end of the injection molding machine drives the right template 3 to be separated from the middle template 1 through the fixing panel 74, the second product is separated from the cavity on the middle template 1 along with the right template 3, then the piston rod 131 of the cylinder 13 is started to contract, and the second ejector pin bottom plate 73 is pushed to eject the second product from the right template 3, so that the demolding of two different products is completed.

Claims

1. A double-product synchronous forming die is characterized by comprising a middle die plate (1), a left die plate (2) and a right die plate (3) which are spliced on two sides of the middle die plate (1) respectively, wherein a first product cavity (4) is formed between the left die plate (2) and the middle die plate (1), and a second product cavity (5) is formed between the right die plate (3) and the middle die plate (1);

The middle template (1) is provided with a fixing buckle (101); a first ejection mechanism (6) connected with an ejector rod of an injection molding machine is arranged on one side of the left template (2) far away from the middle template (1), and a second ejection mechanism (7) is arranged on one side of the right template (3) far away from the middle template (1);

A sprue bush (8) communicated with the second product cavity (5) is arranged on the right template (3), and an inlet of the sprue bush (8) faces one side of the second ejection mechanism (7); the first product cavity (4) is communicated with the second product cavity (5) through an intermediate glue channel (9).

2. The double-product synchronous forming die of claim 1, wherein the second ejection mechanism (7) comprises a second ejector pin panel (72), a second ejector pin bottom plate (73) and a fixing panel (74) which are sequentially overlapped, the second ejector pin panel (72) and the second ejector pin bottom plate (73) are matched and fixed with a second ejector pin (71), the second ejector pin (71) penetrates through the right die plate (3) in a sliding manner and is introduced into the second product cavity (5), an air cylinder (13) is fixed on the right die plate (3), and the second ejector pin bottom plate (73) is fixed on a piston rod (131) of the air cylinder (13).

3. the double-product synchronous molding die according to claim 2, wherein one cylinder (13) is symmetrically arranged on each of the top surface and the bottom surface of the right die plate (3).

4. The double-product synchronous molding die according to claim 2, wherein the second ejector pin panel (72), the second ejector pin base plate (73) and the fixing panel (74) are provided with nozzle holes (75) through which the injection molding machine nozzle passes and which are coaxial with the sprue bush (8).

5. The dual-product synchronous molding die of claim 2, wherein the first ejection mechanism (6) comprises a first ejector pin panel (62), a first ejector pin base plate (63) and a fixed base plate (64) which are sequentially overlapped, the first ejector pin panel (62) and the first ejector pin base plate (63) are matched and fixed with a first ejector pin (61), and the first ejector pin (61) passes through the right template (3) in a sliding manner and is introduced into the first product cavity (4).

6. The mold for simultaneous molding of two products according to claim 5, wherein the fixed base plate (64) is provided with a knock-out hole (65) for the knock-out of the injection molding machine to pass through.

7. The double-product synchronous forming die of claim 6, wherein the fixed panel (74) and the fixed bottom plate are both fixed with guide posts (11) and support posts (12), the right die plate (3) or the left die plate (2) is slidably connected to the corresponding guide posts (11), and the right die plate (3) or the left die plate (2) abuts against the corresponding support posts (12).

8. The double-product synchronous forming die of claim 1, wherein three intermediate glue channels (9) are uniformly distributed between the first product cavity (4) and the second product cavity (5) along the circumference.

9. the double-product synchronous forming die according to claim 1, wherein the middle die plate (1), the left die plate (2) and the right die plate (3) are provided with water conveying channels (10).