CN220923133U - Grinding head for double-color injection molding machine - Google Patents
Grinding head for double-color injection molding machine Download PDFInfo
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- CN220923133U CN220923133U CN202322318087.4U CN202322318087U CN220923133U CN 220923133 U CN220923133 U CN 220923133U CN 202322318087 U CN202322318087 U CN 202322318087U CN 220923133 U CN220923133 U CN 220923133U
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- converging
- grinding head
- injection molding
- molding machine
- converges
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- 238000001746 injection moulding Methods 0.000 title claims abstract description 20
- 230000007423 decrease Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 65
- 230000000694 effects Effects 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 description 7
- 239000003086 colorant Substances 0.000 description 5
- 238000010992 reflux Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
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Abstract
The utility model provides a grinding head for a double-color injection molding machine, which comprises a main runner, a containing groove and more than two converging channels, wherein the more than two converging channels are arranged around the main runner, and the more than two converging channels are communicated with the main runner and the containing groove; the main flow channel is correspondingly arranged with the first flow channel, the feeding port and the second flow channel are correspondingly arranged, the second material output from the second barrel can flow into the main flow channel in different radial directions of the main flow channel, and the color mixing effect is good; simultaneously, more than two converging channels are arranged, so that the amount of second materials in each converging channel is reduced, and a small amount of second materials are respectively output through the converging channels at different positions for mixing, and the color mixing effect between the second materials and the first materials is good.
Description
Technical Field
The utility model relates to the field of injection molding machines, in particular to a grinding head for a double-color injection molding machine.
Background
In the existing double-color injection molding machine technology, double-color injection molding is realized through the cooperation of two feed cylinders and a nozzle, but after feed liquid of different colors enters the nozzle, feed liquid reflux can not be avoided, and feed liquid can be polluted when feed liquid of different colors flows back into a feed cavity, so that the quality of the whole injection molding finished product is influenced. In the existing double-color injection molding machine, a set of hydraulic control assembly is adopted to control the material pipes, and the condition that the two material pipes are mutually influenced possibly occurs, so that poor operation of the material pipes is caused.
In China application number 201420170087.2 and publication day 2014.12.17, a hydraulic control system and a double-color injection molding machine are disclosed, wherein nozzles in the double-color injection molding machine are double-flow-passage single-outlet nozzles, and check valves are respectively arranged in the double flow passages; the hydraulic control system realizes the control of double flow channels by double hydraulic control groups; the one-way valve is arranged in the double flow channels of the nozzle, so that the backflow of two feed liquids is prevented, and the situation that feed liquids with different colors are mixed and polluted due to the fact that the feed liquids flow back into the feed cylinder is avoided. According to the injection molding machine, the one-way valve is arranged for liquid material backflow, and the one-way valve is required to be opened firstly when discharging each time, so that the structure is complex; meanwhile, the second flow passage is only provided with one outlet, and materials in the second flow passage can only flow into the main flow passage from the inlet of the main flow passage, and the grinding head with the structure is only provided with two passages corresponding to the materials, so that the mixing of the materials is not improved, and the color mixing effect is poor.
Disclosure of Invention
The utility model provides a grinding head for a double-color injection molding machine, more than two converging channels are arranged around a main runner, so that second materials output from a second cylinder can flow into the main runner in different radial directions of the main runner, and the color mixing effect is good; simultaneously, more than two converging channels are arranged, so that the amount of second materials in each converging channel is reduced, and a small amount of second materials are respectively output through the converging channels at different positions for mixing, and the color mixing effect between the second materials and the first materials is good.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the grinding head for the double-color injection molding machine comprises a main runner, a containing groove and more than two converging channels, wherein the more than two converging channels are arranged around the main runner, and the more than two converging channels are communicated with the main runner and the containing groove; the one end that the passageway that converges is close to the sprue is equipped with the export that converges, and the one end that the passageway that converges is close to the holding groove is equipped with the entry that converges, and the width that converges the entry is greater than the width that converges the export, is equipped with the pan feeding mouth of outside extension in one side that the holding groove kept away from the passageway that converges, and the sprue corresponds setting and communicates with first runner, pan feeding mouth and second runner and correspond setting and communicate.
The main runner is used for receiving materials output by the first charging barrel, the feeding port is used for receiving materials output by the second charging barrel, the main runner is communicated with the accommodating groove through the converging channel, the main runner is correspondingly arranged with the first charging barrel, and the feeding port is correspondingly arranged with the first charging barrel; thus, the first material flow output from the first material cylinder flows into the main flow channel through the first flow channel, the second material output from the second material cylinder flows into the material inlet through the second flow channel, then flows into more than two confluence channels through the accommodating groove, and then flows into the main flow channel, and the mixed materials with different colors are output from the main flow channel by controlling the first material cylinder and the second material cylinder to alternately feed.
More than two converging channels are arranged around the main flow channel, so that the second material output from the second cylinder can flow into the main flow channel in different radial directions of the main flow channel, and the color mixing effect is good; simultaneously, more than two converging channels are arranged, so that the amount of second materials in each converging channel is reduced, and a small amount of second materials are respectively output through the converging channels at different positions for mixing, and the color mixing effect between the second materials and the first materials is good.
Meanwhile, the width of the converging inlet is larger than that of the converging outlet, so that materials entering the main flow channel cannot flow back to the converging inlet, and the first materials in the main flow channel are prevented from flowing back to the accommodating groove and being mixed with the second materials; the structure through the passageway that converges avoids the material to flow backward, and the reliability is good, simple structure.
Further, the accommodating groove is an annular accommodating groove.
Above setting, through setting up the holding groove that the annular set up, the holding groove sets up around the sprue, and then the holding groove feeds different converging channel along the different axial direction of sprue.
Further, the width of the converging channel gradually decreases from the converging inlet toward the converging outlet. This further limits material reflux.
Further, more than two perforations are arranged on the grinding head, and the perforations are used for mounting the grinding head.
Further, more than two positioning pins are arranged on the grinding head. Quick positioning of the grinding head during installation is realized through the positioning pin.
Drawings
Fig. 1 is a cross-sectional view of a use of the present utility model.
Fig. 2 is an enlarged view of B in the present utility model.
Fig. 3 is a schematic view of a grinding head according to the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and the detailed description.
As shown in fig. 1-3; the grinding head 4 for the double-color injection molding machine comprises a main runner 41, a containing groove 42 and more than two converging channels 43, wherein the more than two converging channels 43 are arranged around the main runner 41, and the more than two converging channels 43 are communicated with the main runner 41 and the containing groove 42. In the present embodiment, the accommodating groove 42 is an annular accommodating groove 42. The receiving groove 42 is provided around the main flow passage 41, and the receiving groove 42 feeds different confluence passages 43 in different axial directions of the main flow passage 41.
A converging outlet 432 is formed in one end, close to the main flow channel 41, of the converging channel 43, a converging inlet 431 is formed in one end, close to the accommodating groove 42, of the converging channel 43, the width of the converging inlet 431 is larger than that of the converging outlet 432, an outwardly extending feeding port 421 is formed in one side, far away from the converging channel 43, of the accommodating groove 42, the main flow channel 41 is correspondingly arranged and communicated with the first flow channel 13, and the feeding port 421 is correspondingly arranged and communicated with the second flow channel 14; a nozzle is provided below the grinding head 4, and communicates with the main flow passage 41.
The grinding head 4 is arranged in the material nozzle seat 1, a first material cylinder 2 and a second material cylinder 3 are arranged on the material nozzle seat 1, the main runner 13 is used for receiving materials output by the first material cylinder 2, and the material inlet 421 is used for receiving materials output by the second material cylinder 3. More than two through holes 44 and more than two positioning pins 45 are arranged on the grinding head 4, and the positioning pins 45 are used for being matched with positioning holes (not shown in the figure) of the material nozzle seat 1 so as to realize the alignment of the grinding head 4 and the material nozzle seat 1; the through hole 44 corresponds to a threaded hole (not shown) of the mouthpiece holder 1, and a bolt (not shown) is screwed through the through hole 44. The stable connection between the grinding head 4 and the material nozzle seat 1 is realized.
The main runner 41 is arranged corresponding to the first charging barrel, and the charging port 421 is arranged corresponding to the second charging barrel; the first material flow outputted from the first cylinder 2 flows into the main flow path 41 through the first flow path, the second material outputted from the second cylinder 3 flows into the feed port 421 through the second flow path, flows into two or more confluence paths 43 through the accommodating groove 42, and then flows into the main flow path 41, and the mixed materials having different colors are outputted from the main flow path 41 by controlling the first cylinder 2 and the second cylinder 3 to alternately feed.
More than two converging channels 43 are arranged around the main flow channel 41, so that the second material output from the second cylinder can flow into the main flow channel 41 in different radial directions of the main flow channel 41, the effect of mixing the first material and the second material at intervals can be formed, and the color mixing effect is good; simultaneously, more than two converging channels 43 are arranged, so that the amount of second materials in each converging channel 43 is reduced, and a small amount of second materials are respectively output for mixing through the converging channels 43 at different positions, and the color mixing effect between the second materials and the first materials is good.
Meanwhile, the width of the confluence inlet 431 is larger than that of the confluence outlet 432, so that materials entering the main runner 41 cannot flow back to the confluence inlet 431, and the first materials in the main runner 41 are prevented from flowing back to the accommodating groove 42 to be mixed with the second materials; the material is prevented from flowing reversely through the structure of the converging channel 43, so that the reliability is good, and the structure is simple.
In the present embodiment, the width of the converging channel 43 gradually decreases from the converging inlet 431 toward the converging outlet 432, which further limits material backflow; the cross-sectional width L1 of the feed port 421 is smaller than the cross-sectional width L2 of the second flow passage 14. When the second material enters the feeding hole 421, the flow velocity of the second material is accelerated due to the reduced cross-sectional width of the feeding hole 421.
Claims (5)
1. The grinding head for the double-color injection molding machine is characterized in that: the device comprises a main runner, a containing groove and more than two converging channels, wherein the more than two converging channels are arranged around the main runner, and the more than two converging channels are communicated with the main runner and the containing groove; the one end that the passageway that converges is close to the sprue is equipped with the export that converges, and the one end that the passageway that converges is close to the holding groove is equipped with the entry that converges, and the width that converges the entry is greater than the width that converges the export, is equipped with the pan feeding mouth of outside extension in one side that the holding groove kept away from the passageway that converges, and the sprue corresponds setting and communicates with first runner, pan feeding mouth and second runner and correspond setting and communicate.
2. A bi-color injection molding machine grinding head according to claim 1, wherein: the accommodating groove is an annular accommodating groove.
3. A bi-color injection molding machine grinding head according to claim 1, wherein: the width of the converging channel gradually decreases from the converging inlet to the converging outlet.
4. A bi-color injection molding machine grinding head according to claim 1, wherein: more than two perforations are arranged on the grinding head, and the perforations are used for mounting the grinding head.
5. The grinding head for a double-color injection molding machine according to claim 4, wherein: more than two locating pins are arranged on the grinding head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322318087.4U CN220923133U (en) | 2023-08-29 | 2023-08-29 | Grinding head for double-color injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322318087.4U CN220923133U (en) | 2023-08-29 | 2023-08-29 | Grinding head for double-color injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220923133U true CN220923133U (en) | 2024-05-10 |
Family
ID=90939585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322318087.4U Active CN220923133U (en) | 2023-08-29 | 2023-08-29 | Grinding head for double-color injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220923133U (en) |
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2023
- 2023-08-29 CN CN202322318087.4U patent/CN220923133U/en active Active
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