CN218314855U

CN218314855U - Double-color injection mold

Info

Publication number: CN218314855U
Application number: CN202222013793.3U
Authority: CN
Inventors: 房兰青
Original assignee: Weihai Yijia Mould Technology Co ltd
Current assignee: Weihai Yijia Mould Technology Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2023-01-17
Anticipated expiration: 2032-08-01

Abstract

The utility model relates to a double-colored mould technical field, and disclose double-colored injection mold includes lower mould and mould lid, the surface of lower mould be provided with the die cavity, the side of lower mould is provided with first pipe of moulding plastics, the side of lower mould is provided with the second pipe of moulding plastics, the bottom of mould lid be provided with the assembly chamber, the fixed surface of mould lid is equipped with the cylinder, the fixed piston rod that is equipped with of output of cylinder, the piston rod activity runs through the mould lid to the assembly chamber in, and the fixed bottom of piston rod is equipped with the regulating plate, the fixed bottom of regulating plate is equipped with anti-sticking plate, above-mentioned double-colored injection mold has solved the inside and outside temperature variation of current die cavity through the cooperation of regulating plate and cylinder big, the blank can produce great shrinkage, cause the final product bad, be difficult to ensure the thickness of each colour injection product, be difficult to carry out thickness and adjust, lead to the processingquality of injection product to be difficult to satisfy the problem of customer's demand.

Description

Double-color injection mold

Technical Field

The utility model relates to a double-colored mould technical field specifically is double-colored injection mold.

Background

The double-color mold is a mold which is formed by injecting two plastic materials on the same injection molding machine in two times, but the product is only subjected to mold stripping once, generally, the molding process is also called double-material injection molding, is usually completed by one set of mold, needs a special double-color injection molding machine, is increasingly popular in the market, can enable the appearance of the product to be more beautiful, is easy to change colors without spraying, but has high manufacturing cost and high technical requirement.

However, the existing two-color mold has the following problems in the use process:

the existing double-color injection mold has the advantages that the injection molding of two colors needs to be finished through two sets of molds, one material is injected at each time, the blank needs to be taken out after the injection molding of the first material is finished, the temperature change inside and outside the mold cavity is large, the blank can generate large shrinkage, the final product is poor, the thickness of each color injection product is difficult to ensure, the thickness adjustment is difficult, the processing quality of the injection product is difficult to meet the requirements of customers, and the double-color injection mold is necessary to be used in the technical field of the existing double-color mold.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The temperature variation is big inside and outside to current die cavity, and the blank can produce great shrinkage, causes the end product bad, is difficult to ensure each colour injection moulding product's thickness, is difficult to carry out thickness control, leads to injection moulding product's processingquality to be difficult to the problem that satisfies the customer demand, the utility model provides a double-shot injection mold possesses the height-adjustable festival nature through the regulating plate, is convenient for adjust each colour injection moulding product's thickness, reaches the advantage of production demand to solve the problem that the background art provided.

(II) technical scheme

In order to achieve the above object, the present invention provides the following technical solutions:

double-colored injection mold, including lower mould and mould lid, the surface of lower mould be provided with the die cavity, the side of lower mould is provided with first pipe of moulding plastics, the side of lower mould is provided with the second pipe of moulding plastics, first pipe of moulding plastics and second mould plastics and manage all to communicate with the die cavity, and first pipe of moulding plastics is located the top that the second was moulded plastics, the bottom of mould lid be provided with the assembly chamber, the fixed surface of mould lid is equipped with the cylinder, the output fixed assembly of cylinder has a piston rod, the piston rod activity runs through the mould lid to the assembly chamber to the bottom fixed assembly of piston rod has the regulating plate, the bottom fixed assembly of regulating plate has the anti-sticking plate, regulating plate and anti-sticking plate all are located the assembly chamber, and the anti-sticking plate is located the top of die cavity.

Preferably, the equal fixed assembly in symmetry both sides face of lower mould have an operation piece, the inside of operation piece all is provided with rotates the chamber, rotates the symmetry on the chamber and is provided with the pull groove, the rotation chamber on all movable assembly have a screw thread loop bar, the one end of screw thread loop bar runs through out the operation piece to on the screw thread loop bar all fixed assembly have a connecting block, the connecting block corresponds and carries out fixed assembly with the side of die cover, the equal symmetrical fixed assembly in surperficial lower part of screw thread loop bar has the sliding block, the sliding block corresponds and carries out movable assembly with the pull groove.

Preferably, the rotation chamber on the activity be equipped with the lead screw, the lead screw corresponds and carries out the screw assembly with the screw loop bar, rotate in the screw loop bar through the lead screw, make the sliding block remove on the pull groove, the bottom activity of lead screw runs through the operation piece, and the bottom of lead screw is all fixed to be equipped with drive sprocket, the winding has the chain on two drive sprocket, transmission through the chain, make two drive sprocket carry out the equidirectional rotation, fixed mounting has the mount on one of them operation piece, fixed mounting has drive machine on the mount, drive machine's output activity runs through the mount, and drive machine's output and one of them drive sprocket carry out fixed mounting.

Preferably, the surface symmetry of lower mould be provided with the constant head tank, the constant head tank is located the both sides of die cavity, the bottom symmetry of die cover fixed assembly have the locating pin, the locating pin is located the both sides in assembly chamber, and the locating pin is located the top of constant head tank, assembles through locating pin and constant head tank, improves the assembly effect of lower mould and die cover.

Preferably, the bottom surface of constant head tank all be provided with the movable groove, the equal activity on constant head tank and the movable groove is equipped with the movable rod, the top of movable rod is all fixed and is equipped with the ejector pad, the movable rod on all be equipped with expanding spring, expanding spring's both ends carry out fixed assembly with the bottom of ejector pad and the bottom surface of constant head tank respectively.

Preferably, the surface of the push block and the surface of the lower die are in the same horizontal plane.

(III) advantageous effects

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. the utility model discloses well double-colored injection mold, start transmission motor, under the transmission of chain, make two drive sprocket carry out the equidirectional rotation, the lead screw rotates in the screw loop pole, let the sliding block remove in the pull groove, make things convenient for the mould lid to close the lid to the lower mould, according to the second quantitative thickness of moulding plastics of pipe of moulding plastics, the actuating cylinder, make the piston rod extend, antiseized board is located between first injection moulding pipe and the second pipe of moulding plastics, toward the second injects first kind of colour plastic into the pipe of moulding plastics, after first kind of colour plastic is moulded plastics and is accomplished, according to the quantitative thickness of moulding plastics of first injection moulding pipe, the control piston rod contracts, make the antiseized board be located the top of first injection moulding pipe, again toward first kind of plastics and inject second kind of colour plastic into the pipe, after second kind of colour plastic is moulded plastics and is accomplished, thereby realize same mould injection moulding plastics into double-colored plastic products, the processing is convenient, and the machining efficiency is improved, and two kinds of colour plastic body laminating are inseparabler, the processing quality is high.

2. The utility model discloses well double-colored injection mold, the locating pin inserts in the constant head tank for the locating pin promotes the ejector pad and removes, and the movable rod removes toward the direction of movable groove simultaneously, and expanding spring contracts, and the colour plastic body falls into the constant head tank during moulding plastics, separates through locating pin and constant head tank, under expanding spring's spring action, makes the ejector pad release the colour plastic body in the constant head tank, is convenient for clear up the colour plastic body on the constant head tank, the use of the device of being convenient for.

Drawings

FIG. 1 is a schematic view of a front view structure of a medium-color and double-color injection mold of the present invention;

FIG. 2 is a schematic diagram of a side view structure of the medium-color and double-color injection mold of the present invention;

FIG. 3 is a schematic view of a cross-sectional structure of a medium-color injection mold of the present invention;

fig. 4 is an enlarged schematic structural diagram of a in fig. 3 according to the present invention.

In the figure:

10. a lower die; 11. a mold cover; 12. a cylinder; 13. positioning pins;

20. a mold cavity; 21. an operation block; 22. a first injection molded tube; 23. a second injection molded tube;

30. a threaded stem; 31. connecting blocks; 32. a screw rod; 33. a drive sprocket;

40. a chain; 41. a fixed mount; 42. a drive motor; 43. a piston rod;

50. an assembly chamber; 51. an adjusting plate; 52. an anti-sticking plate; 53. a rotation chamber;

60. a traction groove; 61. a slider; 62. positioning a groove; 63. a movable groove;

70. a movable rod; 71. a push block; 72. a telescoping spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-4, it is a structural schematic diagram of a dual-color injection mold according to a preferred embodiment of the present invention, the dual-color injection mold of this embodiment includes a lower mold 10 and a mold cover 11, the surface of the lower mold 10 is provided with a mold cavity 20, the side of the lower mold 10 is provided with a first injection pipe 22, the side of the lower mold 10 is provided with a second injection pipe 23, the first injection pipe 22 and the second injection pipe 23 are both communicated with the mold cavity 20, and the first injection pipe 22 is located above the second injection pipe 23, the bottom of the mold cover 11 is provided with an assembly cavity 50, the surface fixing of the mold cover 11 is equipped with a cylinder 12, the output end of the cylinder 12 is fixedly equipped with a piston rod 43, the piston rod 43 movably runs through the mold cover 11 to the assembly cavity 50, and the bottom of the piston rod 43 is fixedly equipped with an adjusting plate 51, the bottom of the adjusting plate 51 is fixedly equipped with an anti-sticking plate 52, the adjusting plate 51 and the anti-sticking plate 52 are both located in the assembly cavity 50, and the anti-sticking plate 52 is located above the mold cavity 20.

The two symmetrical side surfaces of the lower die 10 are fixedly provided with operation blocks 21, the operation blocks 21 are internally provided with rotation cavities 53, the rotation cavities 53 are symmetrically provided with traction grooves 60, the rotation cavities 53 are movably provided with threaded sleeve rods 30, one ends of the threaded sleeve rods 30 penetrate through the operation blocks 21, the threaded sleeve rods 30 are fixedly provided with connecting blocks 31, the connecting blocks 31 are correspondingly fixedly assembled with the side surfaces of the die covers 11, the lower surface parts of the threaded sleeve rods 30 are symmetrically and fixedly provided with sliding blocks 61 which move in the traction grooves 60, the rotation cavities 53 are movably provided with lead screws 32, the lead screws 32 correspondingly and the threaded sleeve rods 30 are in threaded assembly, the bottoms of the lead screws 32 movably penetrate through the operation blocks 21, the bottoms of the lead screws 32 are fixedly provided with transmission chain wheels 33, chains 40 are wound on the two transmission chain wheels 33, the transmission chain wheels 33 rotate in the same direction through the transmission of the chains 40, one operation block 21 is fixedly provided with transmission motors 42, the output ends of the transmission motors 42 movably penetrate through the fixed frame 41, and the output ends of the transmission motors 42 are assembled with the fixed frame 33.

The surface symmetry of lower mould 10 be provided with constant head tank 62, constant head tank 62 is located the both sides of die cavity 20, the bottom symmetry of die cover 11 fixed be equipped with locating pin 13, locating pin 13 is located the both sides of assembling chamber 50, and locating pin 13 is located the top of constant head tank 62, assembles through locating pin 13 and constant head tank 62 for stability between lower mould 10 and the die cover 11 improves.

In this embodiment, the transmission motor 42 is started, under the transmission of the chain 40, the two transmission sprockets 33 rotate in the same direction, the screw rod 32 rotates in the threaded sleeve rod 30, the sliding block 61 moves in the traction groove 60, so that the mold cover 11 can cover the lower mold 10 conveniently, according to the quantitative injection thickness of the second injection pipe 23, the air cylinder 12 is started, the piston rod 43 is extended, the anti-sticking plate 52 is located between the first injection pipe 22 and the second injection pipe 23, the first color plastic is poured into the second injection pipe 23, after the injection molding of the first color plastic is completed, the piston rod 43 is controlled to contract according to the quantitative injection thickness of the first injection pipe 22, the anti-sticking plate 52 is located above the first injection pipe 22, the second color plastic is poured into the first injection pipe 22, and after the injection molding of the second color plastic is completed, the injection molding of the same mold is realized to form a bicolor plastic product, the processing is convenient, the processing efficiency is improved, the two color plastic bodies are attached more tightly, and the processing quality is high.

Example 2

As shown in fig. 1-4, it is the utility model discloses another preferred embodiment's double-shot injection mold structure sketch map avoids the colour plastic body to fall into in operation process positioning groove 62, influences the insertion of locating pin 13 for the laminating of mould lid 11 and lower mould 10 is not inseparable, and the error appears in the product manufacturing, consequently on example 1's basis, improves the device, positioning groove 62's bottom surface all be provided with movable groove 63, equal activity is equipped with movable rod 70 on positioning groove 62 and the movable groove 63, and the top of movable rod 70 is all fixed and is equipped with ejector pad 71, ejector pad 71 the surface with lower mould 10's surface be in same horizontal plane, fixed being equipped with expanding spring 72 between the bottom of ejector pad 71 and the bottom surface of positioning groove 62, the inside at expanding spring 72 is all assembled to movable rod 70.

In this embodiment, locating pin 13 inserts in the constant head tank 62, make locating pin 13 promote ejector pad 71 and remove, simultaneously the movable rod 70 removes toward the direction of movable groove 63, expanding spring 72 contracts, the colour plastic body falls into constant head tank 62 during moulding plastics, separate through locating pin 13 and constant head tank 62, under expanding spring 72's elastic force, make ejector pad 71 release the colour plastic body in the constant head tank 62, be convenient for clear up the colour plastic body on the constant head tank 62, the use of the device of being convenient for.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A double-color injection mold comprises a lower mold (10) and a mold cover (11),

the method is characterized in that:

the surface of a lower die (10) is provided with a die cavity (20), the side of the lower die (10) is provided with a first injection molding pipe (22), the side of the lower die (10) is provided with a second injection molding pipe (23), the first injection molding pipe (22) and the second injection molding pipe (23) are communicated with the die cavity (20), the first injection molding pipe (22) is located above the second injection molding pipe (23), the bottom of a die cover (11) is provided with an assembly cavity (50), the surface of the die cover (11) is fixedly provided with an air cylinder (12), the output end of the air cylinder (12) is fixedly provided with a piston rod (43), the piston rod (43) movably penetrates through the die cover (11) to the assembly cavity (50), the bottom of the piston rod (43) is fixedly provided with an adjusting plate (51), the bottom of the adjusting plate (51) is fixedly provided with an anti-sticking plate (52), the adjusting plate (51) and the anti-sticking plate (52) are both located in the assembly cavity (50), and the anti-sticking plate (52) is located above the die cavity (20).

2. The two-color injection mold according to claim 1, characterized in that: the symmetrical two side faces of the lower die (10) are fixedly provided with operation blocks (21), the inside of each operation block (21) is provided with a rotating cavity (53), traction grooves (60) are symmetrically formed in the rotating cavity (53), each rotating cavity (53) is movably provided with a threaded sleeve rod (30), one end of each threaded sleeve rod (30) penetrates through the corresponding operation block (21), each threaded sleeve rod (30) is fixedly provided with a connecting block (31), each connecting block (31) corresponds to one side face of the die cover (11) to be fixedly assembled, sliding blocks (61) are symmetrically and fixedly assembled on the lower surface of each threaded sleeve rod (30), and each sliding block (61) corresponds to one traction groove (60) to be movably assembled.

3. The two-color injection mold of claim 2, wherein: rotate chamber (53) on the activity be equipped with lead screw (32), lead screw (32) correspond and carry out the screw assembly with screw loop bar (30), the bottom activity of lead screw (32) runs through operation piece (21), and the equal fixed transmission chain wheel (33) that is equipped with in bottom of lead screw (32), the winding has chain (40) on two transmission chain wheels (33), fixed mounting (41) that is equipped with on one of them operation piece (21), fixed mounting (42) are gone up in mount (41), the output activity of transmission motor (42) runs through mount (41), and the output of transmission motor (42) and one of them transmission chain wheel (33) carry out fixed mounting.

4. The two-color injection mold according to claim 3, characterized in that: the surface symmetry of lower mould (10) be provided with constant head tank (62), constant head tank (62) are located the both sides of die cavity (20), the bottom symmetry of die cover (11) fixed be equipped with locating pin (13), locating pin (13) are located the both sides of assembling chamber (50), and locating pin (13) are located the top of constant head tank (62).

5. The two-color injection mold according to claim 4, characterized in that: the bottom surface of constant head tank (62) all be provided with movable groove (63), all the activity is equipped with movable rod (70) on constant head tank (62) and movable groove (63), the equal fixed push block (71) that is equipped with in top of movable rod (70), movable rod (70) on all be equipped with expanding spring (72), the both ends of expanding spring (72) respectively with the bottom of push block (71) and the bottom surface of constant head tank (62) carry out fixed assembly.

6. The two-color injection mold according to claim 5, wherein: the surface of the push block (71) and the surface of the lower die (10) are in the same horizontal plane.