CN216465939U - Hot nozzle structure and hot runner system - Google Patents
Hot nozzle structure and hot runner system Download PDFInfo
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- CN216465939U CN216465939U CN202122842606.8U CN202122842606U CN216465939U CN 216465939 U CN216465939 U CN 216465939U CN 202122842606 U CN202122842606 U CN 202122842606U CN 216465939 U CN216465939 U CN 216465939U
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Abstract
The utility model relates to the technical field of hot runners, and provides a hot runner structure and a hot runner system, wherein the hot runner structure comprises a hot runner body, a valve needle channel which is longitudinally communicated is arranged on the hot runner body, and the valve needle channel is used for placing a valve needle and is used as a movable space of the valve needle; the hot nozzle body is also provided with a plurality of sizing material channels for injecting sizing materials with different colors, each sizing material channel is provided with at least one sizing material outlet, each sizing material outlet is communicated with the valve needle channel, the heights of the sizing material outlets in the valve needle channel are different, and the valve needle is used for controlling the opening and closing of the sizing material outlets. The hot nozzle body is provided with the plurality of sizing material channels, so that one color sizing material can be injected, and the co-injection of the sizing materials with various colors can be realized to form the appearance effect of a gradient product.
Description
Technical Field
The utility model relates to the technical field of hot runners, in particular to a hot nozzle structure and a hot runner system.
Background
The existing hot nozzle structure is a single channel, only single rubber material injection molding can be carried out, when multiple rubber materials are needed to be injected, the multiple hot nozzles need to be arranged to respectively inject different rubber materials to complete the injection molding, the multiple rubber materials are adopted to inject the plastic material, the large mold space is occupied, the cost of the mold and the hot runner system is high, and the multiple rubber materials can not be co-injected simultaneously.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a hot nozzle structure and a hot runner system, and aims to solve the technical problems that in the prior art, a mode that a plurality of hot nozzles are used for respectively injecting different rubber materials is adopted, so that the occupied mold space is large, the cost of the mold and the hot runner system is high, and the co-injection of multiple rubber materials cannot be realized.
In order to achieve the purpose, the utility model adopts the technical scheme that:
on one hand, the utility model provides a hot nozzle structure, which comprises a hot nozzle body, wherein a valve needle channel which is longitudinally communicated is arranged on the hot nozzle body, and the valve needle channel is used for placing a valve needle and is used as an activity space of the valve needle;
the hot nozzle body is further provided with a plurality of sizing material channels for injection molding of sizing materials with different colors, each sizing material channel is provided with at least one sizing material outlet, each sizing material outlet is communicated with the valve needle channel, the heights of the sizing material outlets in the valve needle channel are different, and the valve needle is used for controlling the opening and closing of the sizing material outlets.
According to the hot nozzle structure, the hot nozzle body is provided with two sizing material channels, the two sizing material channels comprise a first sizing material channel and a second sizing material channel, and the first sizing material channel and the second sizing material channel are arranged on the periphery of the valve needle channel.
According to the hot nozzle structure, the first sizing material channel is provided with a first sizing material inlet and a first sizing material outlet;
the second sizing material channel is provided with a second sizing material inlet and a second sizing material outlet, and the second sizing material outlet is positioned above or below the first sizing material outlet.
According to the hot nozzle structure, the first sizing material channel is provided with a first sizing material inlet and two first sizing material outlets;
the second sizing material channel is provided with a second sizing material inlet and a second sizing material outlet, and the second sizing material outlet is positioned between the two first sizing material outlets in a staggered manner.
According to the hot nozzle structure, the first sizing material channel is provided with a first sizing material inlet and a first sizing material outlet;
the second sizing material channel is provided with a second sizing material inlet and two second sizing material outlets, and the first sizing material outlets are positioned between the two second sizing material outlets in a staggered arrangement.
According to the hot nozzle structure, the sizing material channel is longitudinally arranged, or the sizing material channel is obliquely arranged.
According to the hot nozzle structure, the glue outlet is obliquely arranged towards one end of the glue outlet of the valve needle channel, and an included angle formed by the glue outlet and the valve needle channel is not more than 90 degrees.
According to the hot nozzle structure, the aperture range value of the sizing material channel is 3-20 mm;
and/or the aperture of the valve needle channel is 2 mm-15 mm.
In a second aspect, the present invention further provides a hot runner system, including the above hot nozzle structure, and further including an electric cylinder and a valve needle, where the valve needle is disposed in the valve needle channel, and the electric cylinder drives the valve needle to move in the valve needle channel to open or close the sizing material outlet.
According to the hot runner system, the hot runner system further comprises a plurality of injection molding nozzles and a splitter plate, wherein the injection molding nozzles are used for injecting rubber materials with different colors, a plurality of splitter plate runners are arranged on the splitter plate, the injection molding nozzles are respectively communicated with the splitter plate runners, and the splitter plate runners are respectively communicated with the rubber material runners.
The hot nozzle structure and the hot runner system provided by the utility model have the beneficial effects that:
according to the hot nozzle structure and the hot runner system provided by the utility model, the plurality of sizing material channels are arranged on the hot nozzle body, so that one color sizing material can be injected, and the co-injection of various color sizing materials can be realized, so that the appearance effect of a gradient product is formed. The hot nozzle realizes the co-injection of rubber materials with various colors, can be realized only by arranging a plurality of rubber material channels on the hot nozzle body, has a simple structure, and reduces the cost and the operation difficulty compared with the traditional mode.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic perspective view of a hot nozzle structure according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a valve needle disposed in a hot nozzle structure according to an embodiment of the present invention;
FIG. 3 is a first schematic cross-sectional view of a valve pin disposed in a hot nozzle structure according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional structure diagram ii of a valve needle placed in a hot nozzle structure according to an embodiment of the present invention;
fig. 5 is a schematic cross-sectional structure diagram three of a valve needle placed in a hot nozzle structure provided by the embodiment of the utility model;
FIG. 6 is a schematic top view of a hot nozzle structure according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of a hot-runner system according to an embodiment of the present invention;
FIG. 8 is a flow chart of an injection molding method provided by an embodiment of the present invention;
fig. 9 to 13 are schematic injection molding states of steps included in an injection molding method according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1000. a hot runner system; 100. a hot nozzle structure; 110. a hot nozzle body; 120. a valve needle passage; 121. a glue outlet; 130. a sizing material channel; 131. a first sizing channel; 1311. a first sizing material inlet; 132. a second sizing channel; 1321. a second sizing material inlet; 133. a third sizing channel; 140. a sizing material outlet; 141. a first sizing material outlet; 142. a second sizing material outlet; 200. a valve needle; 300. an electric cylinder; 400. an injection molding nozzle; 410. a first injection molding nozzle; 420. a second injection molding nozzle; 500. a flow distribution plate; 510. a flow distribution plate flow passage; 511. a first splitter plate flow channel; 512. a second splitter plate flow channel; 2000. a mold cavity; 3000. a first color sizing material; 4000. a second color sizing.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Referring to fig. 1, the present embodiment provides a thermal nozzle structure 100, including a thermal nozzle body 110, a valve needle channel 120 longitudinally penetrating through the thermal nozzle body 110, and referring to fig. 2, the valve needle channel 120 is used for placing a valve needle 200 and is used as a moving space of the valve needle 200; the hot nozzle body 110 is further provided with a plurality of sizing material channels 130 for injecting sizing materials with different colors, each sizing material channel 130 is provided with at least one sizing material outlet 140, each sizing material outlet 140 is communicated with the valve needle channel 120, the heights of the sizing material outlets 140 in the valve needle channel 120 are different, and the valve needle 200 is used for controlling the sizing material outlets 140 to be opened and closed.
The working principle of the hot nozzle structure 100 provided by the embodiment is as follows:
in the hot nozzle structure 100 provided by this embodiment, the hot nozzle body 110 is provided with a plurality of sizing material channels 130 communicated with the valve needle channel 120, sizing materials with different colors can be respectively injected into the plurality of sizing material channels 130, and the sizing material outlets 140 corresponding to the sizing material channels 130 have different heights in the valve needle channel 120. Meanwhile, as the valve needle 200 can move in the valve needle channel 120, that is, the valve needle 200 can move up and down in the valve needle channel 120, the opening or closing of each glue outlet 140 can be controlled, so that the co-injection of one color glue or a plurality of colors of glue can be realized.
The hot nozzle structure 100 provided by the embodiment has at least the following beneficial effects:
the hot nozzle structure 100 provided by the embodiment is provided with the plurality of rubber material channels 130 on the hot nozzle body 110, so that one color rubber material can be injected, and the co-injection of various color rubber materials can be realized to form the appearance effect of a gradient product. This embodiment realizes that multiple colour sizing material annotates altogether, only need set up a plurality of sizing material passageways 130 on hot body 110 of chewing alright realize, its simple structure to compare in traditional mode, this embodiment has still reduced the cost, has reduced the operation degree of difficulty.
In a preferred implementation, referring to fig. 3 to 5, two sizing material channels 130 are provided on the hot nozzle body 110, the two sizing material channels 130 include a first sizing material channel 131 and a second sizing material channel 132, and the first sizing material channel 131 and the second sizing material channel 132 are provided at the periphery of the valve needle channel 120. The arrangement of the first and second glue channels 131, 132 allows for injection molding of one glue color and for co-injection of two glue colors. Optionally, the first glue channel 131, the second glue channel 132 and the valve pin channel 120 are located on the same line.
In a preferred embodiment, referring to fig. 3, said first sizing channel 131 is provided with a first sizing inlet 1311 and a first sizing outlet 141; the secondary sizing channel 132 is provided with a secondary sizing inlet 1321 and a secondary sizing outlet 142, and the secondary sizing outlet 142 is located above or below the primary sizing outlet 141.
When the second compound outlet 142 is located below the first compound outlet 141, the injection molding process is as follows: controlling valve needle 200 to move upwards, when controlling valve needle 200 to move upwards to a preset position, that is, valve needle 200 opens second glue outlet 142, second color glue 4000 can be injected, when controlling valve needle 200 to move upwards continuously to fully open valve needle, that is, valve needle 200 opens first glue outlet 141, first color glue 3000 can be injected, meanwhile, second color glue 4000 is still injected because second glue outlet 142 is also in an open state, and then two colors of glue are co-injected, and a product appearance effect of gradual change can be realized, when controlling valve needle 200 to move downwards to close to a preset position, injection of second color glue 4000 can be realized until mold cavity 2000 is filled, and when mold cavity 2000 is filled, valve needle 200 is fully closed, and injection is completed. The multi-color co-injection molding machine is simple in structure, low in cost, simple in injection molding process and convenient to operate.
When the second glue outlet 142 is located above the first glue outlet 141, the injection molding process is the same as above, and will not be described herein again.
In a preferred embodiment, referring to fig. 4, the first sizing channel 131 is provided with a first sizing inlet 1311 and two first sizing outlets 141; the second glue material channel 132 is provided with a second glue material inlet 1321 and a second glue material outlet 142, and the second glue material outlet 142 is arranged between the two first glue material outlets 141 in a staggered manner.
The injection molding process comprises the following steps: controlling valve needle 200 to move upward, when controlling valve needle 200 to move upward to a preset position, that is, valve needle 200 opens one first glue outlet 141 below second glue outlet 142, first color glue 3000 can be injected, when controlling valve needle 200 to move upward until valve needle is completely opened, that is, valve needle 200 opens second glue outlet 142, and opens another first glue outlet 141 above second glue outlet 142, second color glue 4000 can be injected, and another first glue outlet 141 above second glue outlet 142 starts to inject first color glue 3000, at the same time, first color glue 3000 of one first glue outlet 141 below second glue outlet 142 continues to inject to realize co-injection of two colors of glue, and a product appearance effect with gradient color can be realized, when controlling valve needle 200 to move downward to close to the preset position, injection molding of the first color sizing material 3000 can also be achieved until the mold cavity 2000 is filled, and after the mold cavity 2000 is filled, the valve needle 200 is completely closed to complete injection molding. The multi-color co-injection molding machine is simple in structure, low in cost, simple in injection molding process and convenient to operate.
In a preferred embodiment, referring to fig. 5, said first sizing channel 131 is provided with a first sizing inlet 1311 and a first sizing outlet 141; the second glue material channel 132 is provided with a second glue material inlet 1321 and two second glue material outlets 142, and the first glue material outlet 141 is positioned between the two second glue material outlets 142 in a staggered arrangement.
The injection molding process comprises the following steps: controlling valve needle 200 to move upward to a preset position, that is, valve needle 200 opens one second glue outlet 142 located below first glue outlet 141, so as to realize injection molding of second-color glue 4000, when controlling valve needle 200 to move upward until valve needle is completely opened, that is, valve needle 200 opens first glue outlet 141, so as to realize injection molding of first-color glue 3000, another second glue outlet 142 located above first glue outlet 141 is also opened, so as to start injection molding of second-color glue 4000, and at the same time, the first-color glue of one second glue outlet 142 located below first glue outlet 141 is still injected continuously, so as to realize co-injection of two colors of glue, so as to realize a gradient product appearance effect, and when controlling valve needle 200 to move downward to close to the preset position, so as to realize injection molding of second-color glue 4000 until mold cavity 2000 is filled, after the mold cavity 2000 is filled, the valve pin 200 is completely closed, completing injection molding. The multi-color co-injection molding machine is simple in structure, low in cost, simple in injection molding process and convenient to operate.
In a preferred embodiment, the glue channel 130 is arranged longitudinally, i.e. the glue channel 130 is arranged parallel to the valve needle channel 120.
In a preferred embodiment, the glue channel 130 is arranged obliquely, i.e. the glue channel 130 is angled with respect to the valve needle channel 120.
Optionally, referring to fig. 4, the first glue channel 131 is disposed longitudinally, and the second glue channel 132 is disposed longitudinally.
Alternatively, the first glue channel 131 is arranged longitudinally and the second glue channel 132 is arranged obliquely.
Optionally, referring to fig. 3 and 5, the first glue channel 131 is disposed obliquely, and the second glue channel 132 is disposed longitudinally.
Alternatively, the first glue channel 131 is arranged obliquely and the second glue channel 132 is arranged obliquely.
In a preferred embodiment, referring to fig. 5, the glue outlet 140 is disposed obliquely toward one end of the glue outlet 121 of the valve needle channel 120, and an included angle α formed between the glue outlet 140 and the valve needle channel 120 is not greater than 90 °.
Optionally, an included angle α formed between the glue outlet 140 and the valve needle channel 120 is 30 ° to 60 °, which can improve glue flowing efficiency.
Optionally, the angle α formed by the glue outlet 140 and the valve needle channel 120 is 30 °.
Optionally, the angle α formed by the glue outlet 140 and the valve needle channel 120 is 45 °.
Optionally, the angle α formed by the glue outlet 140 and the valve needle channel 120 is 60 °.
It should be understood that the angle α formed by the glue outlet 140 and the valve needle channel 120 is not limited to the above value, and may be other values, which are not limited herein.
In a preferred embodiment, referring to fig. 4, the aperture d1 of the glue channel 130 ranges from 3mm to 20 mm.
Optionally, the aperture d1 of the glue channel 130 is 3 mm.
Optionally, the aperture d1 of the glue channel 130 is 14 mm.
Optionally, the aperture d1 of the glue channel 130 is 20 mm.
It should be understood that the aperture d1 of the glue channel 130 is not limited to the above values, but may be other values, and is not limited thereto.
In one embodiment, the bore diameter d2 of the valve needle passage 120 is 2mm to 15 mm.
Optionally, the bore diameter d2 of the valve needle passage 120 is 2 mm.
Optionally, the bore diameter d2 of the valve needle passage 120 is 10 mm.
Optionally, the bore diameter d2 of the needle passage 120 is 15 mm.
It should be understood that the aperture d2 of the valve needle passage 120 is not limited to the above value, and may be other values, and is not limited herein.
In other embodiments, referring to fig. 6, three sizing material channels 130 are arranged on the hot nozzle body 110, the three sizing material channels 130 include a first sizing material channel 131, a second sizing material channel 132 and a third sizing material channel 133, and the first sizing material channel 131, the second sizing material channel 132 and the third sizing material channel 133 are arranged on the periphery of the valve needle channel 120. The arrangement of the first, second and third glue lanes 131, 132, 133 enables co-injection of three colours of glue. The co-injection process is the same as that of two color sizing materials, only the quantity is increased, and the details are not repeated here.
Optionally, the first glue material channel 131, the second glue material channel 132, and the third glue material channel 133 are uniformly arranged around the periphery of the valve needle channel 120, and the first glue material channel 131, the second glue material channel 132, and the third glue material channel 133 form an equilateral triangle.
Optionally, the first glue channel 131, the second glue channel 132 and the third glue channel 133 form an isosceles right triangle.
Optionally, four sizing material channels 130 are arranged on the hot nozzle body 110, the four sizing material channels 130 include a first sizing material channel 131, a second sizing material channel 132, a third sizing material channel 133 and a fourth sizing material channel 130, the first sizing material channel 131, the second sizing material channel 132, the third sizing material channel 133 and the fourth sizing material channel 130 are uniformly arranged around the periphery of the valve needle channel 120 and form a square, and the arrangement of the first sizing material channel 131, the second sizing material channel 132, the third sizing material channel 133 and the fourth sizing material channel 130 can realize co-injection of sizing materials with four colors. The co-injection process is the same as that of two color sizing materials, only the quantity is increased, and the details are not repeated here.
It should be understood that the number and arrangement of the glue channels 130 provided on the hot nozzle body 110 are not limited to the above, and other situations are also possible, and are not limited herein.
Referring to fig. 7, the present embodiment further provides a hot runner system 1000, including the above-mentioned hot nozzle structure 100, where the hot runner system 1000 further includes an electric cylinder 300 and a valve needle 200, the valve needle 200 is disposed in the valve needle channel 120, and the electric cylinder 300 drives the valve needle 200 to move in the valve needle channel 120 to open or close the sizing material outlet 140. Since the structure of the hot nozzle structure 100 has been described above, it will not be described in detail.
The hot runner system 1000 can realize injection molding of one color rubber material and co-injection of various color rubber materials to form a gradient product appearance effect, and is simple in structure and low in cost.
In a preferred embodiment, referring to fig. 7, the hot runner system 1000 further includes a plurality of injection nozzles 400 for injecting different colors of rubber, and a splitter plate 500, wherein a plurality of splitter plate runners 510 are disposed on the splitter plate 500, the plurality of injection nozzles 400 are respectively communicated with the plurality of splitter plate runners 510, and the plurality of splitter plate runners 510 are respectively communicated with the plurality of rubber passages 130. Different colors of rubber materials are injected into the injection molding nozzles 400, the injection molding nozzles 400 are respectively communicated with the flow distribution plate flow passages 510, the flow distribution plate flow passages 510 are respectively communicated with the rubber material channels 130, and then the co-injection of multiple colors is realized through the matching of the valve needle 200.
In one embodiment, the number of injection nozzles 400 is two, namely, a first injection nozzle 410 and a second injection nozzle 420, and the number of splitter plate flow channels 510 is two, namely, a first splitter plate flow channel 511 and a second splitter plate 500, the first injection nozzle 410 is in communication with the first splitter plate flow channel 511, the first splitter plate flow channel 511 is in communication with the first glue material channel 131, the second injection nozzle 420 is in communication with the second splitter plate flow channel 512, and the second splitter plate flow channel 512 is in communication with the second glue material channel 132, so that co-injection of two colors can be achieved.
It should be understood that the number of the injection nozzles 400, the number of the splitter plate runners 510, and the number of the glue channels 130 are not limited to the above values, and may be other values, which may be set according to the number of glue colors required, and are not limited herein.
Referring to fig. 8, the present embodiment further provides an injection molding method using the above-mentioned hot nozzle structure 100. The injection molding method specifically comprises the following steps:
in its initial state, the valve needle 200 is in an unopened state (see fig. 9).
Step S101: valve needle 200 is controlled to open to a predetermined position and only first color compound 3000 flows through first compound channel 131 to valve needle channel 120 and into mold cavity 2000 (see fig. 10).
Step S102: valve pin 200 is controlled to be fully opened, second color sizing material 4000 flows to valve pin channel 120 through second sizing channel 132, and simultaneously, first color sizing material 3000 flows to valve pin channel 120 through first sizing channel 131, and first color sizing material 3000 and second color sizing material 4000 are co-injected into mold cavity 2000 (see fig. 11).
Step S103: valve pin 200 is controlled to close to the preset position and only first color compound 3000 flows through first compound channel 131 to valve pin channel 120 and into mold cavity 2000 until mold cavity 2000 is filled (see fig. 12).
Step S104: the control valve needle 200 is fully closed (see figure 13). I.e. back to the initial state.
The injection molding method can enable the injection molded product to have the appearance effect of gradual change color, and is simple and convenient.
In summary, the present embodiment provides a thermal nozzle structure 100, including a thermal nozzle body 110, a valve needle channel 120 longitudinally penetrating through the thermal nozzle body 110 is provided on the thermal nozzle body 110, and the valve needle channel 120 is used for placing a valve needle 200 and is used as a moving space for the valve needle 200; the hot nozzle body 110 is further provided with a plurality of sizing material channels 130 for injecting sizing materials with different colors, each sizing material channel 130 is provided with at least one sizing material outlet 140, each sizing material outlet 140 is communicated with the valve needle channel 120, the heights of the sizing material outlets 140 in the valve needle channel 120 are different, and the valve needle 200 is used for controlling the sizing material outlets 140 to be opened and closed. The present embodiment further provides a hot runner system 1000, including the above-mentioned hot nozzle structure 100, where the hot runner system 1000 further includes an electric cylinder 300 and a valve needle 200, the valve needle 200 is disposed in the valve needle channel 120, and the electric cylinder 300 drives the valve needle 200 to move in the valve needle channel 120 to open or close the sizing material outlet 140. This embodiment also provides an injection molding method using the above-described hot nozzle structure 100. The injection molding method specifically comprises the following steps: step S101: controlling the valve needle 200 to be opened to a preset position, wherein only the first color sizing material 3000 flows to the valve needle channel 120 through the first sizing material channel 131 and enters the mold cavity 2000; step S102: controlling the valve needle 200 to be fully opened, wherein the second color sizing material 4000 flows to the valve needle channel 120 through the second sizing material channel 132, meanwhile, the first color sizing material 3000 flows to the valve needle channel 120 through the first sizing material channel 131, and the first color sizing material 3000 and the second color sizing material 4000 are co-injected into the mold cavity 2000; step S103: controlling valve pin 200 to close to the preset position, wherein only the first color sizing material 3000 flows to valve pin channel 120 through first sizing material channel 131 and into the mold cavity 2000 until the mold cavity 2000 is filled; step S104: the control valve needle 200 is fully closed (see figure 13). According to the hot nozzle structure 100, the hot runner system 1000 and the injection molding method provided by the embodiment, the plurality of rubber material channels 130 are arranged on the hot nozzle body 110, so that one color of rubber material can be injected, and the co-injection of various colors of rubber materials can be realized, so that the appearance effect of a gradient product is formed. This embodiment realizes that multiple colour sizing material annotates altogether, only needs to set up a plurality of sizing material passageways 130 on hot body 110 of chewing and can realize, its simple structure to compare in traditional mode, this embodiment has still reduced the cost, has reduced the operation degree of difficulty.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A hot nozzle structure is characterized by comprising a hot nozzle body, wherein a valve needle channel which is longitudinally communicated is arranged on the hot nozzle body, and the valve needle channel is used for placing a valve needle and is used as an activity space of the valve needle;
the hot nozzle body is further provided with a plurality of sizing material channels for injection molding of sizing materials with different colors, each sizing material channel is provided with at least one sizing material outlet, each sizing material outlet is communicated with the valve needle channel, the heights of the sizing material outlets in the valve needle channel are different, and the valve needle is used for controlling the opening and closing of the sizing material outlets.
2. The hot nozzle structure according to claim 1, wherein two sizing material channels are provided on the hot nozzle body, the two sizing material channels include a first sizing material channel and a second sizing material channel, and the first sizing material channel and the second sizing material channel are provided on the periphery of the valve needle channel.
3. A hot nozzle structure according to claim 2, wherein the primary gum material channel is provided with a primary gum material inlet and a primary gum material outlet;
the second sizing material channel is provided with a second sizing material inlet and a second sizing material outlet, and the second sizing material outlet is positioned above or below the first sizing material outlet.
4. A hot nozzle structure according to claim 2, wherein the primary gum material channel is provided with one primary gum material inlet and two primary gum material outlets;
the second sizing material channel is provided with a second sizing material inlet and a second sizing material outlet, and the second sizing material outlet is positioned between the two first sizing material outlets in a staggered manner.
5. A hot nozzle structure according to claim 2, wherein the primary gum material channel is provided with a primary gum material inlet and a primary gum material outlet;
the second sizing material channel is provided with a second sizing material inlet and two second sizing material outlets, and the first sizing material outlets are positioned between the two second sizing material outlets in a staggered arrangement.
6. A hot nozzle structure according to claim 1, wherein the size channel is arranged longitudinally or the size channel is arranged obliquely.
7. The hot nozzle structure according to claim 1, wherein the glue outlet is inclined towards one end of the glue outlet of the valve needle channel, and an included angle formed between the glue outlet and the valve needle channel is not more than 90 °.
8. The hot nozzle structure according to claim 1, wherein the size channel has a pore size in the range of 3mm to 20 mm;
and/or the aperture of the valve needle channel is 2 mm-15 mm.
9. A hot runner system, comprising the hot nozzle structure of any one of claims 1 to 8, further comprising an electric cylinder and a valve needle, wherein the valve needle is disposed in the valve needle channel, and the electric cylinder drives the valve needle to move in the valve needle channel to open or close the sizing material outlet.
10. The hot-runner system of claim 9, further comprising a plurality of injection nozzles for injecting different colors of gum material, and a manifold, wherein the manifold has a plurality of manifold channels, the plurality of injection nozzles are in communication with the plurality of manifold channels, and the plurality of manifold channels are in communication with the plurality of gum material channels.
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| CN202122842606.8U CN216465939U (en) | 2021-11-18 | 2021-11-18 | Hot nozzle structure and hot runner system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113927838A (en) * | 2021-11-18 | 2022-01-14 | 广东柳道热流道系统有限公司 | Hot nozzle structure, hot runner system and injection molding method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113927838A (en) * | 2021-11-18 | 2022-01-14 | 广东柳道热流道系统有限公司 | Hot nozzle structure, hot runner system and injection molding method |
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