CN114309542A - Semi-solid magnesium alloy injection device and injection machine - Google Patents
Semi-solid magnesium alloy injection device and injection machine Download PDFInfo
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- CN114309542A CN114309542A CN202011031091.7A CN202011031091A CN114309542A CN 114309542 A CN114309542 A CN 114309542A CN 202011031091 A CN202011031091 A CN 202011031091A CN 114309542 A CN114309542 A CN 114309542A
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Abstract
The invention discloses a semi-solid magnesium alloy injection device, which comprises an injection assembly and a preheating assembly, wherein a discharge port and a feeding port are formed in the injection assembly, the preheating assembly is arranged at the feeding port, and a chute track communicated with the feeding port is arranged in the preheating assembly.
Description
Technical Field
The invention relates to the technical field of semi-solid magnesium alloy processing, in particular to a semi-solid magnesium alloy injection device and an injection machine.
Background
At present, semi-solid magnesium alloy products are mainly produced by matching an injection molding machine with a mold.
The magnesium alloy is heated to 580-600 ℃ in general magnesium alloy injection molding, which has high requirement on the heat resistance of equipment applying magnesium alloy injection molding, and equipment made of materials with high heat resistance has high manufacturing cost and is a huge burden on production cost of enterprises.
The original injection devices are all single injection cylinders, magnesium alloy needs to be heated to about 600 ℃ from a normal temperature state in the injection cylinders, so that the injection cylinders need to be long enough to realize the whole heating process, generally, the high-temperature resistant injection cylinders are quite high in manufacturing cost, and the production cost can be increased; in addition, the end section of the injection cylinder is made of a material with higher heat resistance, and the front section of the injection cylinder is made of a material with lower heat resistance, so that the requirement on the heating temperature of the magnesium alloy is high, and the safety problem is easily caused.
In the aspect of subsequent replacement and maintenance of the injection cylinder, when a certain section of the injection cylinder is damaged, the injection cylinder needs to be replaced integrally, and the direction change improves the production cost.
Disclosure of Invention
The invention aims to provide a semi-solid magnesium alloy injection device and an injection machine, which can be used for heating materials in a segmented manner in the production process of semi-solid magnesium alloy, and can reduce the preparation cost of equipment for heating the materials at a low temperature segment, thereby reducing the overall production cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a semi-solid magnesium alloy injection device comprises
The injection assembly is provided with a discharge port and a feeding port;
the preheating assembly is arranged at the feed port and is internally provided with a chute track communicated with the feed port.
The semi-solid magnesium alloy injection device comprises an injection assembly and a preheating assembly, wherein the preheating assembly is arranged at a feed inlet of the injection assembly, materials can be preheated in the preheating assembly, the materials are heated to a high-temperature state from a normal-temperature state, the preheating assembly is used for heating the materials to an estimated or preset temperature from the normal-temperature state, the materials are heated in a high-temperature section in the injection assembly, the temperature of the materials is not suddenly changed in the heating process, the temperature rising process of the materials is segmented, namely the preheating assembly and the injection assembly are made of materials with different temperature resistance, and the cost is relatively saved; and a chute track is arranged in the preheating assembly and is used as a material flowing channel, so that the path distance or time of the material flowing through the preheating assembly is correspondingly increased, and the material can be heated to a preset temperature providing condition in the preheating assembly.
Further, the preheat assembly includes:
one end of the guide cylinder is communicated with the feeding port;
the feeding assembly is arranged at the other end of the guide cylinder;
the first temperature control assembly is arranged on the guide shell.
The guide cylinder is internally provided with a guide core, the chute track is arranged on the guide core, one end of the chute track is communicated with the feeding assembly, and the other end of the chute track is communicated with the feeding port.
Further, the first temperature control assembly includes:
the first thermocouple is arranged on the outer wall of the guide shell;
the first heating ring is wound outside the guide cylinder; and
the heating tube is arranged in the flow guide core.
Furthermore, the flow guide core comprises a pressing cover and a bottom cover, and one end of the heating tube is fixedly arranged on the pressing cover.
Furthermore, the chute tracks are at least four and are spirally descended on the outer side of the flow guide core.
Furthermore, an opening is formed in the outer wall of the feeding assembly, and a plug is further arranged on the opening.
Further, the injection assembly comprises:
the injection cylinder is internally provided with a rotatable screw, and one end of the screw is provided with a motor;
and the second temperature control assembly is arranged on the injection cylinder.
Further, the second temperature control assembly includes:
the first thermocouple is arranged on the outer wall of the guide shell; and
and the first heating ring is wound outside the guide shell.
Furthermore, a nozzle is arranged at the discharge port, and a flange is arranged outside the nozzle.
The invention also provides an injection machine which comprises the semi-solid magnesium alloy injection device.
For a better understanding and practice, the invention is described in detail below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a semi-solid magnesium alloy injection apparatus according to the present invention;
FIG. 2 is a schematic diagram of the preheat assembly of the present invention;
FIG. 3 is a schematic structural view of a flow guide core of the present invention;
fig. 4 is another angle structure diagram of the diversion core of the present invention.
Detailed Description
In order to better illustrate the invention, the invention is described in further detail below with reference to the accompanying drawings.
As shown in figure 1, which is a schematic structural diagram of a semi-solid magnesium alloy injection device, the semi-solid magnesium alloy injection device comprises
The injection assembly 1 is provided with a discharge port 11 and a feeding port 12;
Preheating assembly 2 is in pan feeding mouth 12 department with injection assembly 1 intercommunication, and the material carries out the primary heating in preheating assembly 2, and the material gets into injection assembly 1 through pan feeding mouth 12 and carries out the secondary heating to jet out from discharge gate 11.
The materials can be preheated in the preheating assembly 2, because the materials are heated to a high-temperature state from a normal-temperature state, the preheating assembly 2 heats the materials to an estimated or preset temperature from the normal-temperature state, the materials are heated in the injection assembly 1 at a high-temperature section, the temperature of the materials is not suddenly changed in the heating process, the temperature rising process of the materials is segmented, namely the preheating assembly 2 and the injection assembly 1 are made of materials with different temperature resistance, and the cost is relatively saved; and a chute track 21 is arranged in the preheating assembly 2, the chute track 21 is used as a material flowing channel, and correspondingly increases the path distance or time for the material to flow through in the preheating assembly 2, so that the material can be heated to a preset temperature providing condition in the preheating assembly 2.
In this embodiment, the preheating assembly also functions to remove moisture contained within the material.
In the prior art, the heating part in the injection assembly 1 is generally closed, when only one injection assembly 1 is arranged to heat materials, water permeated in the materials can be evaporated and retained in the injection assembly 1, and when the materials are injected out, the materials can carry partial water vapor to influence the quality of products, and when the water vapor is excessive, safety accidents such as steam explosion and the like can be caused, for the solution, technical personnel can think that the injection assembly 1 is provided with vent holes, but material leakage or temperature loss in the injection assembly 1 can be caused;
preheating assembly 2 preheats the material, and at this in-process, water exceedes 100 ℃ and can evaporate promptly, can get rid of moisture to the material preheating assembly 2 in, makes the material that gets into in injection assembly 2 not contain moisture or only contain minute amount of moisture, improves the production quality of product, makes semi-solid magnesium alloy injection device's production process safer simultaneously.
In addition, as shown in fig. 1, it can be known that water vapor diffuses toward the upper end of the preheating assembly, materials enter the injection assembly 1 through the feed inlet at the lower end of the preheating assembly 2, the preheating assembly 2 is arranged perpendicular to the injection assembly 1, and the water vapor does not excessively affect the materials at the lower end of the preheating assembly 2; similarly, the upper end of the preheating component 2 can be provided with an exhaust hole, so that water vapor can be conveniently exhausted.
In this embodiment, as shown in fig. 2, which is a schematic structural diagram of the preheating assembly, the preheating assembly 2 includes:
a guide cylinder 22, one end of which is communicated with the feed inlet 12;
the feeding assembly 23 is arranged at the other end of the guide cylinder 22;
a first temperature control assembly disposed on the draft tube 22.
The guide cylinder 22 is internally provided with a guide core 221, the chute track 21 is arranged on the guide core 221, one end of the chute track 21 is communicated with the feeding assembly 23, and the other end of the chute track is communicated with the feeding port 12.
The guide shell 22 is used for limiting the space range of the material to flow through, in order to facilitate maintenance and installation, the guide shell 22 and the guide core 221 are relatively separated, the chute track 21 is arranged on the guide core 221, and the material enters the guide shell 22 through the feeding assembly 23, falls into the chute track 21 and slides up and down into the injection assembly 1.
The chute track 21 is tightly attached to the inner wall of the guide shell 22, and after the guide core 221 is installed in the guide shell 22, the chute track 21 is matched with the guide shell 22 to form a relatively closed channel, so that the material circulation is facilitated, and in addition, the material can be prevented from falling into the injection assembly 1 through a gap between the edge of the chute track 21 and the guide shell 22.
In addition, the chute track 21 may also be disposed on the inner side wall of the guide shell 22, and since the material generally enters from the middle of the guide shell 22, in order to ensure that the material can fall onto the chute track 21 in a conventional manner understood by those skilled in the art, the chute track 21 is disposed on the guide core 221 in the description of the present embodiment, in addition to determining that the chute track 21 does not affect the function of the present embodiment.
In this embodiment, as shown in fig. 2, which is a schematic structural diagram of the preheating assembly, the first temperature control assembly includes:
a first thermocouple 241, wherein the first thermocouple 241 is arranged on the outer wall of the guide shell 22;
the first heating ring 242 is wound outside the guide shell 22, and the first heating ring 242 is arranged outside the guide shell 22; and
and the heating pipe 243, wherein the heating pipe 243 is arranged in the diversion core 221.
The first thermocouple 241 is mainly used for measuring the temperature of the guide shell 22, and relatively controlling the highest temperature at which the material can be heated, so as to control the heating power of the first heating coil 242 and the heating tube 243 according to the temperature condition, thereby controlling the temperature of the material circulating inside.
And the heating tube 243 is built in the diversion core 221 to heat the diversion core 221 on both sides, so that the condition of low local temperature of the material is avoided, and the heating effect is good.
The thermocouple, the heating coil and the heating tube belong to temperature measurement and heating components commonly used in the field, and can be selected or customized from the market according to actual needs by a person skilled in the art, and further detailed description thereof is omitted here. Meanwhile, it can be understood that the circuit connection design of the thermocouple and the heating coil is a simple conventional design, and only the thermocouple and the heating coil need to be ensured to be powered, and the thermocouple and the heating coil are not further illustrated and described herein, and a person skilled in the art can simply design the thermocouple and the heating coil according to actual conditions.
In this embodiment, as shown in fig. 2, for a structural schematic view of the preheating assembly, in order to conveniently enclose the heating tube 243 in the space inside the diversion core 221 or protect the heating tube 243, the diversion core 221 includes a pressing cover 2211 and a bottom cover 2212, and one end of the heating tube 243 is fixedly mounted on the pressing cover 2211.
Wherein, gland 2211 and water conservancy diversion core 221 body are step-like installation, and the trend must be in the guide shell 22 preferentially to fall on gland 2211 upper surface when the material gets into, gland 2211 has the purpose of blockking the material and getting into in the water conservancy diversion core 221, and stepped mounting structure simultaneously even there is the gap between gland 2211 and the water conservancy diversion core 221 body, when gland 2211 is fixed, also have a small amount of material to fall into in the gap, prevent subsequent material from getting into in this gap.
In addition, a heating wire is further disposed on the pressing cover 2211, so that the temperature of the whole diversion core 221 structure after heating is balanced.
In the present embodiment, as shown in fig. 2 to 4, which are a schematic structural view of the preheating assembly and a schematic structural view and a top view of the diversion core, the chute rails 21 are at least four and are arranged outside the diversion core 221 in a spiral descending manner.
In addition, the bottom edge of the guide shell 22 narrows downwards to form a funnel shape, and materials on the tracks of the plurality of chutes 21 are converged at the bottom of the guide shell 22 and enter the injection assembly 1.
In this embodiment, as shown in fig. 2, an opening 231 is disposed on an outer wall of the feeding assembly 23, and a plug 232 is further disposed on the opening 231.
The function of trompil 231 is when semi-solid state magnesium alloy injection apparatus is under the shutdown state, the clout in the pan feeding subassembly 23 of being convenient for clear up, and correspondingly, end cap 232 is used for cooperating the trompil 231 and uses.
Preferably, in this embodiment, the feeding assembly 23 is a hopper, an opening 231 is provided on an outer wall of the hopper, an edge of the opening 231 extends outward to form a cylindrical member, and the plug 232 is provided on the cylindrical member.
In the present embodiment, as shown in fig. 1, which is a schematic structural diagram of a semi-solid magnesium alloy injection device, the injection assembly 1 includes:
the injection device comprises an injection cylinder 13, wherein a rotatable screw 131 is arranged in the injection cylinder 13, and one end of the screw 131 is provided with a motor 132;
and the second temperature control assembly is arranged on the injection cylinder 13.
The motor 132 drives the screw 131 to rotate, and the material entering the injection cylinder 13 is fully mixed and heated by the screw 131 until the material is pushed by the screw 131 to be ejected from the discharge port 11.
In this embodiment, the second temperature control assembly includes:
the second thermocouple 141, the said first thermocouple 241 is set up on the outer wall of the draft tube 22; and
and the second heating ring 142, the first heating ring 242 is wound outside the guide shell 22.
The second thermocouple 141 is mainly used for measuring the temperature of the injection cylinder 13, and correspondingly can control the highest temperature to which the material can be heated, and meanwhile, the heating power of the second heating ring 142 can be controlled according to the temperature condition, so that the temperature of the material circulating in the inner part can be controlled.
In this embodiment, as shown in fig. 1, which is a schematic structural diagram of a semi-solid magnesium alloy injection apparatus, a nozzle 15 is disposed at the discharge port 11, a flange 151 is disposed outside the nozzle 15, the nozzle 15 is used for intensively outputting a material heated in the injection cylinder 13, a bushing 151 is sleeved on the outer periphery of the nozzle 15, and the flange 151 is used for stably connecting and fixing the nozzle 15 and the injection cylinder 13.
As example two of the present invention:
the invention also provides an injection machine, which comprises the semi-solid magnesium alloy injection device, and has the advantages of good production efficiency and low equipment preparation cost.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, which fall within the scope and spirit of the above description. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and variations of the present invention should fall within the scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A semi-solid magnesium alloy injection device is characterized by comprising
The injection assembly is provided with a discharge port and a feeding port;
the preheating assembly is arranged at the feed port and is internally provided with a chute track communicated with the feed port.
2. The semi-solid magnesium alloy injection apparatus of claim 1, wherein the pre-heating assembly comprises:
one end of the guide cylinder is communicated with the feeding port;
the feeding assembly is arranged at the other end of the guide cylinder;
the first temperature control assembly is arranged on the guide shell.
The guide cylinder is internally provided with a guide core, the chute track is arranged on the guide core, one end of the chute track is communicated with the feeding assembly, and the other end of the chute track is communicated with the feeding port.
3. A semi-solid magnesium alloy injection apparatus according to claim 2, wherein the first temperature control assembly comprises:
the first thermocouple is arranged on the outer wall of the guide shell;
the first heating ring is wound outside the guide cylinder; and
the heating tube is arranged in the flow guide core.
4. A semi-solid magnesium alloy injection apparatus according to claim 3, wherein the guide core includes a pressing cover and a bottom cover, and one end of the heating tube is fixedly mounted on the pressing cover.
5. A semi-solid magnesium alloy injection apparatus as claimed in claim 2, wherein the chute track is provided with at least four and is provided outside the guide core in a spirally descending manner.
6. A semi-solid magnesium alloy injection device according to claim 2, wherein the outer wall of the feeding assembly is provided with an opening, and the opening is further provided with a plug.
7. The semi-solid magnesium alloy injection apparatus of claim 1, wherein the injection assembly comprises:
the injection cylinder is internally provided with a rotatable screw, and one end of the screw is provided with a motor;
and the second temperature control assembly is arranged on the injection cylinder.
8. A semi-solid magnesium alloy injection apparatus according to claim 6, wherein the second temperature control assembly comprises:
the first thermocouple is arranged on the outer wall of the guide shell; and
and the first heating ring is wound outside the guide shell.
9. A semi-solid magnesium alloy injection apparatus according to claim 1, wherein a nozzle is provided at the discharge port, and a flange is provided outside the nozzle.
10. An injection machine comprising a semi-solid magnesium alloy injection apparatus according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011031091.7A CN114309542A (en) | 2020-09-27 | 2020-09-27 | Semi-solid magnesium alloy injection device and injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011031091.7A CN114309542A (en) | 2020-09-27 | 2020-09-27 | Semi-solid magnesium alloy injection device and injection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114309542A true CN114309542A (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011031091.7A Pending CN114309542A (en) | 2020-09-27 | 2020-09-27 | Semi-solid magnesium alloy injection device and injection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114309542A (en) |
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2020
- 2020-09-27 CN CN202011031091.7A patent/CN114309542A/en active Pending
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