Injection chamber anti-corrosion charging barrel with intelligent temperature control function

Abstract

The injection chamber anti-corrosion charging barrel with the intelligent temperature control function comprises a barrel-shaped body and an insert, the insert is provided with a barrel body and a fixed end arranged at the end of the barrel body, and a first circulation pipeline used for circulation of cooling liquid is arranged on the peripheral wall of the barrel body. Cold water serves as cooling liquid and is input into the first circulation pipeline, the inner wall of the barrel body is cooled through flowing of the cold water, the erosion speed of molten aluminum to the inner wall of the barrel body is greatly reduced through a single and directional cooling mode, the service life of the charging barrel is correspondingly prolonged, and the situations of cracking, liquid leakage and the like of a material cavity are greatly avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of molding devices, and particularly to a cylinder for a shot chamber with intelligent temperature control and corrosion prevention. Background Art

[0002] Currently, with the widespread application market of magnesium alloy products and the emergence of large-scale integrated die-casting technology, multiple products are integrated into one production process. As a result, the technical requirements for the shot chamber of the integrated die are gradually increasing, and the requirements for the shot cylinder are also gradually rising.

[0003] Conventional cylinders generally pour molten metal into the cylinder through the feed inlet. The molten metal can be aluminum liquid, etc. The molten metal is pushed into the shot sleeve along the cavity of the cylinder by the shot head, filling the shot sleeve with molten metal. Under the action of the shot rod, the casting pressure is increased, and the molten metal enters the mold cavity along the mold diverter cone, filling the mold cavity to complete the die-casting of the product. The injection end of the cylinder is the place where heat is most concentrated. The bottom of the cylinder inlet is extremely prone to erosion due to thermal deformation, and at the same time, residues are generated, causing the shot head to scratch the inner wall of the cylinder during the movement of pushing the aluminum liquid, affecting the service life of the cylinder.

[0004] The traditional cooling method for this is to drill holes in the shot sleeve body for cooling. The situation of cracking, water leakage, and liquid leakage of the shot sleeve caused by thermal stress occurs frequently. Once cracking and liquid leakage occur, the maintenance cost increases greatly. Currently, common cooling methods such as installing a circulating pipeline for cooling inside the cavity wall of the cylinder, etc., but the effect is not good and needs to be improved. Summary of the Invention

[0005] To solve the above at least one technical defect, the present invention provides the following technical solutions:

[0006] This application document discloses a cylinder for a shot chamber with intelligent temperature control and corrosion prevention, including a cylindrical body and an insert. The insert has a cylindrical body and a fixed end provided at its end. The cylindrical body is located in the cavity of the head end of the body, and the mouth of its tail end is communicated with the material cavity of the body. At the position of the cylindrical body wall corresponding to the feed inlet on the circumferential wall of the head end of the body, a feed hole communicating with its cylinder cavity is formed. A first circulating pipeline for the flow of coolant is provided on the circumferential wall of the cylindrical body, and the outlet and inlet of the first circulating pipeline are both at the fixed end. The fixed end is outside the cavity of the head end of the body and is fixed to the head end of the body.

[0007] When in use, if molten aluminum liquid enters the cavity of the cylindrical body from the feed inlet, cold water is used as the coolant and input into the first circulating pipeline. The inner wall of the cylindrical body is cooled by the flow of cold water. The single-directional cooling method greatly reduces the erosion rate of the aluminum liquid on the inner wall of the cylindrical body, correspondingly increasing the service life of the cylinder and greatly avoiding the situation of cracking, water leakage, and liquid leakage of the material cavity, etc.

[0008] Furthermore, a plurality of second circulation pipelines are arranged inside the cavity wall of the main body. The plurality of second circulation pipelines are arranged around the material cavity of the main body, and cooling can be performed according to requirements using the first circulation pipeline and the second circulation pipeline, which is more convenient to use.

[0009] Furthermore, the inlets and outlets of the second circulation pipeline are located at the fixed end, which is convenient for liquid inlet and outlet.

[0010] Furthermore, vacuum holes are arranged on the peripheral wall of the main body. The vacuum holes are communicated with the material cavity behind the cylinder in the insert, and the vacuum holes are increased to facilitate gas extraction.

[0011] Furthermore, a water jacket is sleeved at the tail end of the main body, and a third circulation pipeline is arranged on the peripheral wall of the main body located inside the water jacket cavity. Cooling inlets and cooling outlets communicated with the third circulation pipeline are arranged on the peripheral wall of the water jacket. The third circulation pipeline is added to facilitate temperature reduction or temperature control, and the cooling inlets and outlets are arranged on the peripheral wall to facilitate the input and output of the coolant, etc.

[0012] Furthermore, the inner diameter of the cylinder is the same as the inner diameter of the material cavity of the main body, and the outer diameter of the water jacket is smaller than the outer diameter at the head end of the main body.

[0013] Furthermore, fixing blocks are arranged on the inner wall of the cavity opening at the head end of the main body, and part of the fixing blocks are located in the positioning holes formed on the peripheral wall of the cylinder, and the addition of the fixing blocks helps to improve the stability of the cylinder in the insert.

[0014] Furthermore, the fixed end is in a ring shape, which is convenient for butt-joint with the end face of the main body.

[0015] Furthermore, a refrigeration system and a temperature sensor are further included. A temperature sensor is arranged at the outlet of the first circulation pipeline, and the outlet and inlet of the first circulation pipeline are communicated with the refrigeration system. For example, the temperature sensor detects the water temperature at the outlet, and after receiving the signal, the refrigeration system is correspondingly started to cool the water, thereby reducing the temperature of the inner wall of the cylinder.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The present invention improves the structure of the barrel. The cylinder in the insert is provided with a first circulation pipeline, which can singly and directionally reduce the temperature of the inner wall of the cylinder, and then reduce the erosion of the inner wall by high-temperature aluminum liquid, etc., which helps to improve the service life of the barrel. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic structural diagram of the present barrel in Embodiment 1;

[0020] Figure 2 is a schematic structural diagram of the present insert;

[0021] Figure 3 is a schematic cross-sectional structural diagram of the present barrel;

[0022] Figure 4 is a schematic structural diagram of the present barrel in Embodiment 1;

[0023] Among them, the reference numerals are:

[0024] 1, body; 2, insert; 3, feeding port; 4, vacuum hole; 5, water jacket; 6, fixing block; 7, circulation pipeline three; 21, fixed end; 22, cylinder body; 23, feeding hole; 24, circulation pipeline one; 25, outlet; 26, inlet; 51, cooling inlet; 52, cooling outlet. Detailed implementation manners

[0025] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0026] Embodiment 1

[0027] As Figure 1 , Figure 2 shown, in this example, a barrel for preventing corrosion of an injection chamber with intelligent temperature control includes a cylindrical body 1 and an insert 2. The insert 2 has a cylinder body 22 and a fixed end 21 arranged at its end. The fixed end 21 is in a common ring shape. The fixed end 21 is fixed to the end face of the head of the cylinder body 22 by screws or the like. The cylinder body is formed by a wear-resistant and corrosion-resistant alloy, usually formed by titanium alloy. A groove is formed on the peripheral wall of the cylinder body 22, and a circulation pipeline one 24 for the flow of the coolant is arranged in the groove. As Figure 2 shown, the circulation pipeline one 24 extends in a continuous S shape. When in use, cold water is used as the coolant, and the cylinder body is cooled by the flow of cold water in the circulation pipeline one.

[0028] Both the inlet 26 and the outlet 25 of the circulation pipeline one 24 are located on the end face of the fixed end 21, which is convenient for external connection with a refrigeration system. Preferably, the circulation pipeline one 24 is located directly below the feeding hole 23, and can perform directional cooling on the position impacted by the aluminum liquid.

[0029] As Figure 1 , Figure 2 , Figure 3As shown in the figure, the cylinder body 22 in the insert 2 is located in the cavity at the head end of the body 1. The peripheral wall of the cylinder body 22 fits the corresponding cavity wall. The inner diameter of the cylinder body 22 is the same as the inner diameter of the material cavity of the body 1. The mouth of the tail end of the cylinder body 22 communicates with the material cavity of the body 1, and the mouth of the head end of the cylinder body 22 faces the cavity at the head end of the body 1. At the peripheral wall of the cylinder body 22 corresponding to the feeding port 3 on the peripheral wall at the head end of the body 1, a feeding hole 23 communicating with its cylinder cavity is formed. Then, molten aluminum and the like enter from the feeding port on the peripheral wall of the body and enter the cylinder cavity of the cylinder body through the feeding hole. The injection rod extending from the mouth of the head end of the cylinder body pushes the molten aluminum to flow out from the cavity at the tail end of the body.

[0030] In this example, the fixed end 21 is located outside the cavity at the head end of the body 1 and is fixed to the end face at the head end of the body 1, such as fixing the fixed end to the end face at the head end of the body through screws, bolts, etc.

[0031] To improve stability, in this example, a groove is formed on the inner wall of the cavity at the head end of the body 1. A fixing block 6 is installed at the groove through screws, etc. The top end of the fixing block 6 is located in the positioning hole formed on the peripheral wall of the cylinder body. Under the limitation of the fixing block, the stability of the cylinder body is improved.

[0032] In this example, multiple groups of circulation pipelines II are formed in the cavity wall of the body 1. The circulation pipelines II are composed of multiple cavities in an S shape, groove shape, etc., which can be selected according to requirements. The corresponding number of circulation pipelines II can also be selected according to requirements, such as 2 groups, 3 groups, etc. Multiple groups of circulation pipelines II are arranged around the material cavity of the body to cool the barrel body with the circulation pipelines II. The arrangement and formation of the circulation pipelines II can refer to conventional technologies and will not be elaborated here. The inlets and outlets of the circulation pipelines II are also located at the end face of the fixed end, which is convenient for liquid inlet and outlet.

[0033] Such as Figure 1 、 Figure 4 As shown in the figure, a cylindrical water jacket 5 is sleeved at the tail end of the body 1, and a circulation pipeline III 7 is installed on the peripheral wall of the body 1 located in the cavity of the water jacket 5. The circulation pipeline III also extends in a configuration such as an S shape. The circulation pipeline III 7 extends around the peripheral wall at the tail end of the body. Cooling inlets 51 and cooling outlets 52 communicating with the circulation pipeline III 7 are formed on the peripheral wall of the water jacket 5, which is convenient for cooling or temperature control of the barrel.

[0034] Such as Figure 1 As shown in the figure, a vacuum hole 4 is formed on the peripheral wall of the body 1. The vacuum hole 4 communicates with the material cavity behind the cylinder body 22 in the insert 2, and the vacuum hole is added to facilitate gas extraction. To facilitate docking with external equipment, in this example, the outer diameter at the tail end of the body 1 is smaller than the outer diameter at the head end of the body, and the outer diameter of the water jacket 5 is also smaller than the outer diameter at the head end of the body.

[0035] When this barrel is used in combination with a refrigeration system, a temperature sensor, etc., for example, the refrigeration system is a common circulating water chiller. A temperature sensor is installed at the outlet of the first circulation pipeline. The temperature sensor is connected to the control end of the refrigeration system. The outlet and inlet of the first circulation pipeline are communicated with the corresponding water outlet and water inlet of the refrigeration system. When in use, if the temperature sensor detects the water temperature at the outlet of the first circulation pipeline, after receiving the data from the temperature sensor, the refrigeration system is correspondingly started to cool the water, thereby cooling the inner wall of the barrel and further reducing phenomena such as aluminum liquid erosion.

[0036] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements should also be regarded as within the protection scope of the present invention.

Claims

1. A corrosion-resistant barrel with intelligent temperature control injection chamber, characterized in that: The invention comprises a cylindrical body (1) and an insert (2), wherein the insert (2) comprises a cylinder (22) and a fixed end (21) arranged at its end, the cylinder (22) is located in the cavity of the head end of the body (1) and the cylinder opening of the tail end is connected to the material cavity of the body (1), a feed hole (23) connected to the cylinder cavity is formed on the peripheral wall of the cylinder (22) corresponding to the feed opening (3) on the peripheral wall of the head end of the body (1), a circulation pipeline (24) for the circulation of cooling liquid is arranged on the peripheral wall of the cylinder (22), and the outlet (25) and the inlet (26) of the circulation pipeline (24) are both located at the fixed end (21), and the fixed end (21) is located outside the cavity of the head end of the body (1) and is fixed to the head end of the body (1).

2. The anti-corrosion barrel with intelligent temperature control in the injection chamber according to claim 1, characterized in that: A plurality of groups of circulation pipelines 2 are arranged in the cavity wall of the body (1), and the plurality of groups of circulation pipelines 2 are arranged around the material cavity of the body.

3. The anti-corrosion barrel with intelligent temperature control in the injection chamber as claimed in claim 2, characterized in that: The inlet and outlet of the second circulation pipeline are located at the fixed end.

4. The anti-corrosion barrel with intelligent temperature control in the injection chamber according to claim 1, characterized in that: A vacuum hole (4) is arranged on the peripheral wall of the body (1), and the vacuum hole (4) is communicated with the material cavity behind the cylinder (22) in the insert (2).

5. The anti-corrosion barrel with intelligent temperature control in the injection chamber according to claim 1, characterized in that: A water jacket (5) is provided at the tail end of the body (1), and a circulation pipeline (7) is provided on the peripheral wall of the body in the cavity of the water jacket (5). A cooling inlet (51) and a cooling outlet (52) which are in communication with the circulation pipeline (7) are provided on the peripheral wall of the water jacket (5).

6. The anti-corrosion barrel with intelligent temperature control in the injection chamber according to claim 1, characterized in that: The inner diameter of the cylinder (22) is consistent with the inner diameter of the material cavity of the body (1), and the outer diameter of the water jacket (5) is smaller than the outer diameter at the head end of the body (1).

7. The anti-corrosion barrel with intelligent temperature control in the injection chamber as claimed in claim 1, characterized in that: A fixing block (6) is arranged on the inner wall of the cavity opening at the head end of the body (1), and a portion of the fixing block (6) is located in a positioning hole formed on the peripheral wall of the cylinder.

8. The anti-corrosion barrel with intelligent temperature control in the injection chamber as claimed in claim 1, characterized in that: The fixed end (21) is in the shape of a ring.

9. The anti-corrosion barrel with intelligent temperature control in the injection chamber as claimed in claim 1, characterized in that: It also includes a refrigeration system and a temperature sensor. The temperature sensor is arranged at the outlet of the circulation pipeline 1, and the outlet and the inlet of the circulation pipeline 1 are connected to the refrigeration system.

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