WO2019136815A1

WO2019136815A1 - Environmentally-friendly, continuous, cyclical and colorful injection mold set

Info

Publication number: WO2019136815A1
Application number: PCT/CN2018/078067
Authority: WO
Inventors: 胡志勇; 陈华; 王亮
Original assignee: 东莞市潜鼎实业有限公司
Priority date: 2018-01-09
Filing date: 2018-03-06
Publication date: 2019-07-18
Also published as: CN207696907U

Abstract

An environmentally-friendly, continuous, cyclical and colorful injection mold set, comprising: a turntable (101) which can rotate about the axis of the turntable (101); a plurality of first molds (105) disposed on the turntable (101) around the axis of the turntable (101); a plurality of second molds (106) located above the turntable (101), each of the second molds (106) being configured to be able to be assembled with the first mold (105) located below the second mold (106). The environmentally-friendly, continuous, cyclical and colorful injection mold set can be used for an environmentally-friendly, continuous, cyclical and colorful injection molding device to produce plastic products by means of an efficient, environmentally-friendly, continuous, cyclical and colorful injection process.

Description

Environmentally-friendly colorful continuous cycle injection mold set

The utility model relates to the technical field of injection molding equipment, in particular to an environmentally-friendly and colorful continuous cycle injection mold set.

With the rapid development of modern society, people's living standards and aesthetics have greatly improved, so people's demand for and use of various beautiful and practical plastic products is increasing. At present, the surface color treatment of plastic products is generally sprayed, electroplated and anodized. These processes have a relatively large impact on environmental pollution. At the same time, these processes are inefficient and depend on frontline employees. And these processes are highly destructive to the environment. In the later period, society and the government need to make great efforts and a large amount of funds to manage. These processes cause irreversible damage to the physical and mental health of front-line employees in production, and cause heavy burdens on individuals, families and society. burden. Moreover, there are still many potential safety hazards in products produced and processed through processes such as fuel injection, electroplating and anodizing. Both the physical and mental health of consumers and the sustainable operation of enterprises will cause enormous harm and risks. .

One object of the utility model is to provide an environmentally-friendly and colorful continuous cycle injection mold set, which can be used for environmentally-friendly and colorful continuous cycle injection molding equipment, and produces plastic products through an efficient and environmentally-friendly environmentally-friendly and colorful continuous cycle injection molding process.

To this end, the present invention provides an environmentally-friendly and colorful continuous cycle injection mold set comprising:

a turntable, the turntable being rotatable about an axis of the turntable;

a plurality of first molds disposed on the turntable about an axis of the turntable;

A plurality of second molds are located above the turntable, and each of the second molds is for clamping with a first mold located below the second mold.

As a preferred embodiment, the number of the first modes is greater than or equal to the number of the second modes.

As a preferred embodiment, the number of the first modes is two more than the number of the second modes.

As a preferred embodiment, the number of the first modes is 8.

As a preferred embodiment, the first mold is a male mold, and the second mold is a female mold;

Alternatively, the first mold is a master mold, and the first mold is a male mold.

As a preferred implementation manner, the first mode includes:

a mold base fixedly connected to the turntable;

a mold frame, located above the mold base, the middle portion of the mold frame is provided with a receiving groove;

a lower mold cavity is located in the accommodating groove.

As a preferred implementation manner, the method further includes:

A bouncing ring is located between the bottom of the mold and the mold frame.

As a preferred implementation manner, the method further includes:

The sleeve is fixedly connected to the mold base, and the elastic ring is sleeved on the sleeve.

As a preferred implementation manner, the method further includes:

Positioning pin, located in the first die;

a positioning slot is located on a side of the second die adjacent to the first die, and the positioning pin is inserted into the positioning slot when the second die and the first die are combined.

The utility model has the beneficial effects of providing an environmentally-friendly and colorful continuous cycle injection mold set, which can be used for environmentally-friendly and colorful continuous cycle injection molding equipment, and produces plastic products through an efficient and environmentally-friendly environmentally-friendly and colorful continuous cycle injection molding process.

The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

figure 1

A schematic diagram of an environmentally friendly, colorful continuous cycle injection molding apparatus provided for the examples.

figure 2

A first perspective view of the apparatus body provided for the embodiment (partial injection molding apparatus not shown).

image 3

A schematic cross-sectional view of the apparatus body provided for the embodiment (some components are not shown).

Figure 4

A schematic of the drive gear set provided for the embodiment.

Figure 5

A schematic of the positioning combination provided for the embodiment.

Image 6

A second perspective view of the apparatus body provided for the embodiment.

Figure 7

A schematic view of a third perspective of the apparatus body provided for the embodiment.

Figure 8

A schematic of the thimble assembly provided for the examples.

Figure 9

A schematic of the water transport system provided for the examples.

Figure 10

A schematic cross-sectional view of the water transport system provided for the embodiment.

Figure 11

A schematic diagram of an environmentally friendly and colorful continuous cycle injection mold set provided for the examples.

Figure 12

A schematic representation of a second mold provided for the examples.

Figure 13

An exploded view of the first mold provided for the embodiment.

Figure 14

A method block diagram of the environmentally friendly colorful continuous cycle injection molding process provided for the second embodiment.

Figure 15

A schematic representation of a plastic article provided for the examples.

The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

Embodiment 1

As shown in FIG. 1 to FIG. 10, the embodiment provides an environmentally-friendly and colorful continuous cycle injection molding apparatus, including an apparatus main body 1 and an electrical system 2. The apparatus main body 1 includes a turntable 101, and the turntable 101 is provided with a plurality of first molds 105 arranged around the axis of the turntable 101; a driving gear set 102 is engaged with the turntable 101; and a plurality of second molds 106 are located at the Above the turntable 101, each of the second molds 106 is connected to an injection molding device 104; a mold clamping assembly 103 is coupled to the second mold 106 for causing the second mold 106 to be the first The mold 105 performs a mold clamping or mold opening process. The electrical system 2 is signally coupled to the drive gear set 102 and the mold clamping assembly 103, respectively, to control the operational state of the drive gear set 102 and the mold clamping assembly 103. The driving gear set 102 drives the turntable 101 to rotate about the axis of the turntable 101 itself under the control of the electrical system 2. Since the first die 105 is fixed on the turntable 101, the first die 105 also rotates as the turntable 101 rotates, thereby A positional shift between the first dies 105 is achieved. Each of the second molds 106 represents an injection molding station, and the different second molds 106 are responsible for different color injection molding processes after being clamped with the first molds 105.

In the present embodiment, the driving gear set 102 includes a driving gear 1021, a driving gear base 1022, a driving gear pressing block 1023, a reduction motor 1024, and a servo motor 1025. The electric system 2 can control the rotation speeds of the servo motor 1025 and the reduction motor 1024.

In the present embodiment, the injection molding apparatus 104 includes a hopper 1041, a feed combination 1042, an injection assembly 1043, a tube set 1044, and a seat cylinder combination 1045. The hopper 1041 is used to store the rubber compound. The charging combination 1042 is coupled to the bottom of the hopper 1041. The charging assembly 1042 includes an oil motor 10421, a motor fixing plate 10422, a screw drive shaft 10423, a motor bearing housing 10424, and a screw fixing ring 10425. The oil motor 10421 passes through the screw driving shaft 10423. The feed screw 10442 is driven to rotate to cause the plasticized compound to flow to the tube set 1044. The injection assembly 1043 includes a cylinder upper cover 10431, a cylinder liner 10432, a cylinder piston rod 10433, and a cylinder lower cover 10434. The injection assembly 1043 can provide power for molding the rubber compound in the mold. The tube set 1044 includes a material tube 10441, a feed screw 10442 and a nozzle 10443. The material tube 10441 is disposed coaxially with the feed screw 10442; the nozzle 10443 is connected to the outlet of the material tube 10441. The cylinder combination 1045 is coupled to the injection assembly 1043 for driving the tube set 1044 to be close to or away from the second mold 106. The seat cylinder assembly 1045 includes a seat cylinder piston rod 10451, a cylinder bore cover 10452, and a seat cylinder. The cylinder liner 10453, the cylinder rod 10454 and the cylinder end cap 10455; the cylinder combination 1045 can provide better contact between the nozzle 10443 and the second mold 106.

In this embodiment, the mold clamping assembly 103 includes an upper die plate 10301, a machine column 10302, a mold clamping cylinder oil suction pipe 10303, a wear pad 10304, a lower die plate 10305, a mold cavity end cap 10306, and a mold cavity cylinder liner 10307. The quick-moving piston rod 10308, the clamping mold cylinder cover 10309, the mold clamping cylinder piston 10310, the haval ring 10311, the cylinder under template 10312, the column nut 10313 and the machine column cap 10314. The upper die plate 10301 is located above the turntable 101, the second die 106 is fixed to the bottom of the upper die plate 10301, the lower die plate 10305 is located below the turntable 101, and the die clamping die cylinder is located below the lower die plate 10305. The under-cylinder template 10312 is coupled to the driving end of the clamping die cylinder, and the under-cylinder template 10312 is coupled to the upper die plate 10301 via the chassis 10302. When the clamping cylinder piston 10310 moves downward, the cylinder lower template 10312, the cylinder 10302 and the upper template 10301 are sequentially driven downward, thereby completing the clamping operation of the first mold 105 and the second mold 106; When the cylinder piston 10310 moves upward, the cylinder lower template 10312, the column 10302 and the upper die plate 10301 are sequentially moved upward, thereby completing the mold opening operation of the first die 105 and the second die 106.

In the embodiment, the environmental protection colorful continuous cycle injection molding equipment may select a hydraulic system 6, and the hydraulic system 6 includes a fuel tank 601, a motor 602, an oil pump 603, and an oil passage plate 604. Of course, a pneumatic system is also available.

In the embodiment, the device body 1 further includes a positioning combination 107. The positioning assembly 107 is located below the turntable 101 and is connected to the electrical system 2, and the positioning assembly 107 includes a positioning piston rod 1071, a positioning guide sleeve 1072, a positioning fixing plate 1073, a positioning upper cover 1074, a positioning rod 1075, The positioning cylinder sleeve 1076 and the positioning lower cover 1077 are slidably coupled to the positioning cylinder sleeve 1076 for inserting and moving away from the positioning hole 1011 in the turntable 101. Specifically, when the turntable 101 is rotated to a predetermined injection molding station, the positioning piston rod 1071 is inserted into the positioning hole 1011, which can prevent the rotation of the turntable 101, further ensuring the reliability of the mold clamping process.

In the present embodiment, the apparatus body 1 further includes a thimble assembly 108. The thimble assembly 108 is located below the first mold 105. After the injection molding of all the injection molding stations is completed, the mold is opened, and then the thimble assembly 108 can be used in the first mold 105. The product is jacked up to disengage the product from the first die 105. The thimble assembly 108 includes a thimble piston rod 1081, a thimble fixing plate 1082, a thimble upper cover 1083, a thimble cylinder liner 1084, a thimble pull rod 1085, and a thimble lower cover 1086.

In this embodiment, the first die 105 is a male die, and the second die 106 is a master die; or the first die 105 is a master die, and the first die 105 is a male die.

In this embodiment, the number of the second modes 106 may be 1, 2, 3, 4, 5, 6, or even more; the number of the first modes 105 may be equal to the second mode 106, or One, two, three, four or more more than the second mode 106.

In this embodiment, the environmentally-friendly and colorful continuous-cycle injection molding apparatus further includes a work table 3, a frame 4 and a footboard 5, and the apparatus main body 1 and the work table 3 are both mounted on the frame 4, and the operator can pass the pedal Plate 5 goes to the workbench for operation. Preferably, the position of the footboard 5 is set without the injection molding station to facilitate the operation space for the operator.

In the present embodiment, the apparatus body 1 further includes a water transport system 109 including a water transport center shaft 1091, a water transport cover 1092, a water transport sleeve 1093, and a water transport cover 1094. The water transport center shaft 1091 is connected to the water bearing 1096 through a seal 1095. The side of the water transport center shaft 1091 is provided with a mold water inlet 1097 and a mold water return port 1098 which are in communication with the mold. The water transport center shaft 1091 is fixed to the lower die plate 10305, and the water transport cover 1092, the water transfer cover 1093, and the underwater cover 1094 rotate with the turntable 101.

In the present embodiment, the electrical system 2 includes an electrical box 201 and a controller operating box 202. Preferably, each injection molding device 104 of each station can be equipped with a separate electrical system 2, or all of the injection molding devices 104 can be connected to an electrical system 2 for centralized control.

In the present embodiment, as shown in FIGS. 11 to 13, the turntable 101, the first die 105, and the second die 106 constitute an environmentally-friendly and colorful continuous cycle injection mold set. The first die 105 includes: a mold base 1051 fixedly connected to the turntable 101; a mold frame 1052 located above the mold base 1051, a middle portion of the mold frame 1052 is provided with a receiving groove 10521; 1053 is located in the receiving slot 10521. The upper mold cavity 1061 corresponding to the lower mold cavity 1053 is located in the second mold 106. The bottom of the mold base 1051 is provided with a groove, the bottom of the groove is provided with a sleeve 1055, and the sleeve 1055 is sleeved with a spring ring 1056. The elastic ring 1056 is located between the bottom 1051 and the mold frame 1052, which can serve as a cushioning function. . The mold base 1051 is further provided with a positioning bolt 1054 extending through the mold frame 1052 and extending into the space between the first mold 105 and the second mold 106. The second mold 106 is disposed adjacent to the side of the first mold 105. There is a positioning groove 1062. When the second die 106 is clamped with the first die 105, the positioning pin 1054 is inserted into the positioning groove 1062 to complete alignment and positioning.

The environmentally-friendly and colorful continuous-cycle injection molding equipment provided by the embodiment adopts multiple color-injection injection molding instead of the traditional injection, electroplating and anodizing processes to produce colorful plastic products, which is relatively environmentally friendly and highly automated, each The injection molding station can independently carry out the injection molding step of the station, which has less dependence on manpower and higher production efficiency.

Embodiment 2

As shown in FIG. 14, the embodiment provides an environmentally-friendly and colorful continuous cycle injection molding process that can be realized by the environmentally-friendly and colorful continuous cycle injection molding equipment of the first embodiment, and mainly includes the following steps:

S10: The injection molding of each color block is sequentially performed according to the color sequence of the product to produce a product. Among them, S10 includes:

S101: Determine the color sequence of the product. The color order of the product from inside and outside is the color sequence of the product.

S102: Divide the product into several color blocks according to the color sequence of the product. The parts that can be produced in the same injection molding process are one color block.

S103: The injection color and the injection molding shape of each injection molding process are sequentially set according to the color blocks of the product in the order of the inside and the outside.

S104: clamping the mold, performing an injection molding process; opening the mold, moving the first mold 105 together with the product located in the first mold 105 to a downstream injection molding station; and clamping again, performing injection molding of the next color block. Preferably, each of the injection molding stations can be arranged in a circular shape as in the injection molding station in the first embodiment, and then the positional transformation of the first mold 105 can be realized by rotating; of course, each injection molding station can also be colored according to the color. The position conversion of the first die 105 is realized by using a device such as a conveyor belt in a straight line.

S105: S103 is repeatedly executed until the injection molding of the outermost color block is completed.

S20: Finish the last round of injection molding, and take out the product after opening the mold.

Hereinafter, a combination of the first embodiment and the second embodiment will be described by using a specific example. The steps of producing the plastic product 7 shown in FIG. 15 using the environmentally-friendly and colorful continuous cycle injection molding apparatus of the first embodiment are as follows:

First, the color sequence of the plastic article 7 is determined by analysis. As shown in FIG. 15, the plastic article 7 includes a first member 701, a second member 702, a third member 703, a fourth member 704, and a fifth member 705.

If the first component 701 is red, the second component 702 is orange, the third component 703 is yellow, the fourth component 704 is green, and the fifth component 705 is blue. The color sequence of the plastic product 7 may be red-orange-yellow-green-blue, red-orange-yellow-blue-green, red-yellow-orange-green-blue, or red-yellow - Orange - Blue - Green, etc. Since the colors of the components are different, no two components can be processed in one injection molding, so the first component 701 is the first color patch, the second component 702 is the second color patch, and the third component 703 is the third color patch. The fourth component 704 is a fourth color block and the fifth component 705 is a fifth color block. According to the positional relationship of the color blocks, assuming that the set color sequence is red-orange-yellow-green-blue, the injection molding device 104 of the first injection molding station in the first embodiment is loaded with red rubber particles, and the second injection molding station is used. The injection molding device 104 is filled with orange rubber particles, the injection molding device 104 of the third injection molding station is filled with yellow rubber particles, the injection molding device 104 of the fourth injection molding station is filled with green rubber particles, and the injection molding device 104 of the fifth injection molding station is filled with blue rubber particles. grain. After the first injection molding station injects the first component 701, the second die 106 of the first station is separated from the first die 105, the electrical system 2 sends a signal, the driving gear set 102 operates, and the turntable 101 drives the first die 105 and The first member 701 rotates. When the inductive switch senses that the first die 105 is rotated to the second injection molding station, the driving gear set 102 stops working, the positioning assembly 107 starts to work, and the positioning piston rod 1071 is inserted into the positioning hole 1011. Then the hydraulic system 6 starts to work, the clamping assembly 103 of the second injection molding station drives the second mold 106 of the second station to move downward and clamps with the first mold 105 equipped with the first member 701, and the cylinder combination 1045 The tube set 1044 is also moved downward, after the nozzle 10443 is connected to the second mold 106, the second part 702 is injection molded on the basis of the first mold 105, and so on, until the injection molding of the fifth part 705 is completed, and the mold clamping is completed. The combination 103 drives the second die 106 upward, and then the thimble assembly 108 lifts the plastic article 7 and takes out the plastic article 7 to complete the entire process.

If the first component 701 is red, the second component 702 and the third component 703 are orange, the fourth component 704 and the fifth component 705 are green. The color sequence of the plastic product 7 is red-orange-green. Then the first component 701 is the first color patch, the second component 702 and the third component 703 are the second color patches, and the fourth component 704 and the fifth component 705 are the third color patches. The first injection molding station is responsible for the injection molding of the first component 701, the second injection molding station is responsible for the injection molding of the second component 702 and the third component 703, and the third injection molding station is responsible for the injection molding of the fourth component 704 and the fifth component 705.

If the first component 701 is red, the second component 702 and the fourth component 704 are orange, and the third component 703 and the fifth component 705 are green. The color sequence of the plastic product 7 is red-orange-green or red-green-orange. Then the first component 701 is the first color patch, the second component 702 and the fourth component 704 are the second color patches, and the third component 703 and the fifth component 705 are the third color patches. When red-orange-green is selected as the production color sequence, the first injection molding station is responsible for the injection molding of the first component 701, and the second injection molding station is responsible for the injection molding of the second component 702 and the fourth component 704, the third injection molding machine. The bit is responsible for the injection molding of the third part 703 and the fifth part 705.

The terms "first", "second", etc. in this document are merely used to distinguish between descriptions and have no special meaning.

In addition, it should be noted that the specific technical features described in the above specific embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention has various possibilities. The combination will not be explained otherwise.

In addition, any combination of various embodiments of the present invention may be made as long as it does not deviate from the idea of the present invention, and should also be regarded as the disclosure of the present invention.

The utility model adopts a colorful continuous cycle injection mold set, and the degree of automation is high. Each injection molding station can perform automatic injection molding according to the injection mold group, has less dependence on manpower, high production efficiency, and can realize batch production in industry. The production can be easily copied and used, and has high industrial applicability.

Claims

An environmentally-friendly and colorful continuous cycle injection mold set characterized by comprising:
a turntable, the turntable being rotatable about an axis of the turntable;
a plurality of first molds disposed on the turntable about an axis of the turntable;
A plurality of second molds are located above the turntable, and each of the second molds is for clamping with a first mold located below the second mold.
The environmentally-friendly colorful continuous cycle injection mold set according to claim 1, wherein the number of the first molds is greater than or equal to the number of the second molds.
The eco-friendly colorful continuous cycle injection mold set according to claim 2, wherein the number of the first molds is two more than the number of the second molds.
The environmentally-friendly and colorful continuous cycle injection mold set according to claim 3, wherein the number of the first molds is 8.
The environmentally-friendly colorful continuous cycle injection mold set according to claim 1, wherein
The first mold is a male mold, and the second mold is a female mold;
Alternatively, the first mold is a master mold, and the first mold is a male mold.
The environmentally-friendly and colorful continuous cycle injection mold set according to claim 1, wherein the first mold comprises:
a mold base fixedly connected to the turntable;
a mold frame, located above the mold base, the middle portion of the mold frame is provided with a receiving groove;
a lower mold cavity is located in the accommodating groove.
The environmentally-friendly and colorful continuous cycle injection mold set according to claim 6, further comprising: a spring ring located between the mold bottom and the mold frame.
The environmentally-friendly and colorful continuous-cycle injection mold set according to claim 7, further comprising: a sleeve, which is fixedly connected to the mold base, and the spring ring is sleeved on the sleeve.
The environmentally-friendly and colorful continuous cycle injection mold set according to claim 1, further comprising:
Positioning pin, located in the first die;
a positioning slot is located on a side of the second die adjacent to the first die, and the positioning pin is inserted into the positioning slot when the second die and the first die are combined.