An extrusion die for a copper rod extruder

Abstract

The utility model relates to the technical field of copper rod extrusion, and in particular to an extrusion die for a copper rod extruder, comprising an inner die, a cooling sleeve and an outer die arranged coaxially, the die being detachably arranged at the output end of the extruder through the outer die, wherein the cooling sleeve of the utility model comprises a sleeve body and a fluid control structure, and a plurality of cooling cavities arranged at intervals are formed on the contact surface between the sleeve body and the inner die; a control cavity for connecting the cooling cavity and an opening and closing structure for adjusting the control cavity are formed inside the fluid control structure, and the opening and closing structure can control adjacent cooling cavities to be connected or closed by the control cavity, so that one or more cooling branches are formed around the inner die, thereby adapting to the production of copper rods of different specifications.

Description

Technical Field

[0001] The utility model relates to the technical field of copper rod extrusion, in particular to an extrusion die for a copper rod extruder. Background Art

[0002] Nowadays, copper rods are mainly formed by extrusion through an extruder. The output end of a general extruder will be equipped with extrusion dies of different specifications to control the diameter of the copper rod, so as to produce copper rods of multiple specifications.

[0003] The extrusion die is a component used to control the extrusion size and assist the cooling and forming of the copper rod. The cooling component structure of the current extrusion die is single. When producing copper rods of different thicknesses, a cooling method with the same cooling effect is adopted. However, the cooling effect required for the production of thin copper rods is actually lower than the cooling effect required for the production of thick copper rods. Therefore, the current status of the extrusion die cannot adapt to the production of copper rods of different specifications, which is bound to cause energy waste. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an extrusion die for a copper rod extruder, aiming to solve the problems arising from the above-mentioned background technology.

[0005] The technical solution of the utility model is implemented as follows: an extrusion die for a copper rod extruder, comprising an inner die, a cooling sleeve and an outer die arranged coaxially, the inner die having a cavity matching the output end of the extruder, the die being detachably arranged at the output end of the extruder through the outer die, characterized in that: the cooling sleeve comprises:

[0006] The sleeve body is coaxially sleeved on the inner mold;

[0007] A fluid control structure is installed on the casing;

[0008] Wherein, a plurality of cooling cavities arranged at intervals are formed on the contact surface between the sleeve body and the inner mold;

[0009] A control cavity for communicating with the cooling cavity is formed inside the fluid control structure, and the control cavity has a plurality of water inlet ends and water outlet ends corresponding to the cooling cavities, and an opening and closing structure for adjusting the control cavity;

[0010] The opening and closing structure can control the adjacent cooling chambers to be connected or closed by the control chamber, and form at least one cooling branch in the sleeve.

[0011] Preferably, the fluid control structure comprises:

[0012] A mounting body, detachably disposed on the sleeve body;

[0013] A plurality of water inlet chambers corresponding to each cooling chamber and connected to one end of the corresponding cooling chamber;

[0014] A plurality of drainage cavities, corresponding to each cooling cavity and connected to the other end of the corresponding cooling cavity;

[0015] A communication cavity, connecting the adjacent water inlet cavity and the drainage cavity;

[0016] A plurality of water inlet valves and water discharge nozzles are arranged on the mounting body and are respectively connected with each water inlet cavity and water discharge cavity;

[0017] The opening and closing structure is composed of a first control structure for controlling the opening and closing of the drainage end and a second control structure arranged in the connecting cavity.

[0018] Preferably, the first control structure includes:

[0019] A spring cavity is formed in the mounting body and corresponds to each drain nozzle;

[0020] piston;

[0021] A piston shaft is slidably connected in the spring chamber;

[0022] A closed spring connects the spring chamber to the piston shaft;

[0023] An electromagnet is disposed in the mounting body;

[0024] When the electromagnet is energized to generate magnetism, the piston shaft is attracted and the piston is controlled to open the drain nozzle;

[0025] When the electromagnet is powered off and loses its magnetism, the piston shaft is controlled by the closing spring to drive the piston to close the drain nozzle.

[0026] Preferably, the second control structure includes:

[0027] A pressure relief plate is installed in the communicating cavity and is provided with pressure relief holes;

[0028] The pressure relief valve core is installed on the pressure relief plate through the pressure relief spring;

[0029] Wherein, the diameter of the connecting cavity gradually expands from the direction of water flow.

[0030] By adopting the above technical solution:

[0031] The cooling jacket on the extrusion die of the utility model is provided with a fluid control structure, by which the cooling chamber in the cooling jacket can be controlled to be connected or independent (by controlling the piston to open or close the drainage nozzle through the electromagnet and the closing spring);

[0032] When the cooling chamber is connected, water only needs to be fed in through one water inlet end, so that the distance and time for the water flow around the inner body can be increased. Therefore, it is suitable for cooling when producing thin copper rods.

[0033] When the cooling chambers are independent of each other, water can be supplied to each cooling chamber through each water inlet end, so that the cooling effect of the cooling jacket on the inner body is improved. Therefore, it is suitable for cooling when producing thick copper rods.

[0034] Therefore, the utility model can change the cooling effect of the cooling jacket through the fluid control structure, so as to match the production of copper rods of various specifications.

[0035] Preferably, the outer mold comprises:

[0036] ontology;

[0037] A positioning ring is formed on one side of the body and is adapted to a positioning groove provided at one end of the cooling jacket;

[0038] A disassembly groove is formed on the other side of the body, and corresponding threaded holes are provided on the bottom of the disassembly groove and the cooling sleeve;

[0039] The screw sleeve is detachably connected to the disassembly groove;

[0040] Wherein, the groove wall of the disassembly groove and one end of the threaded sleeve are provided with internal threads and external threads that match each other, and the body is fixed to the cooling sleeve by bolts passing through the threaded holes.

[0041] By adopting the above technical solution:

[0042] The outer mold of the utility model is provided with a screw sleeve, which can realize the connection between the extrusion mold and the output end of the extruder, and can also be used to limit the bolts used to connect the outer mold and the cooling sleeve, thereby improving the stability of the connection between the cooling sleeve, the inner mold and the outer mold.

[0043] In addition, other advantages of the present invention will be demonstrated in the embodiments of the present invention, thereby making the beneficial effects of the present invention more significant. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0045] Figure 1 This is a schematic diagram of the structure of a specific implementation method of the utility model;

[0046] Figure 2 for Figure 1 AA section view in;

[0047] Figure 3 for Figure 1 BB section view in;

[0048] Figure 4 for Figure 2 CC section view in;

[0049] Figure 5 for Figure 3 A magnified view of part A in FIG.

[0050] Figure 6 for Figure 4 A magnified view of part B in FIG.

[0051] Figure 7 It is a schematic structural diagram of specific embodiment 2 of the utility model. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0053] Example 1

[0054] like Figure 1-6 As shown, the utility model discloses an extrusion die for a copper rod extruder, comprising an inner die 10, a cooling sleeve 20 and an outer die 30 arranged coaxially, wherein the inner die 10 has a die cavity 100 matching the output end of the extruder, and the die is detachably arranged at the output end of the extruder through the outer die.

[0055] In this embodiment, the outer mold 30 and the cooling jacket 20 are fixedly installed by bolts 31 , and one end of the cooling jacket 20 is provided with a discharge port 200 corresponding to the mold cavity 100 .

[0056] In this embodiment, one end of the outer mold 30 is provided with a threaded structure, which can be threadedly connected to the output end of the extruder to achieve the installation of the extrusion mold and the extruder (that is, the discharge end of the extruder is also provided with a threaded structure that is compatible with the outer mold, thereby achieving the installation and disassembly of the extrusion mold).

[0057] During assembly of this embodiment, the outer mold and the cooling sleeve are disassembled, and then the inner mold is taken out and replaced with a new inner mold. The diameter of the inner mold cavity of the inner mold determines the thickness of the copper rod. After the inner mold is replaced, the outer mold and the cooling sleeve are reassembled to complete the assembly of the extrusion mold.

[0058] In this embodiment: the cooling jacket 20 includes:

[0059] The sleeve body 40 is coaxially sleeved on the inner mold 10;

[0060] The fluid control structure 41 is mounted on the sleeve 40;

[0061] Wherein, a plurality of cooling cavities 202 arranged at intervals are formed on the contact surface between the sleeve body 40 and the inner mold 10;

[0062] A control cavity for communicating with the cooling cavity 202 is formed inside the fluid control structure 41, and the control cavity has a plurality of water inlet ends and water outlet ends corresponding to each cooling cavity, and an opening and closing structure for adjusting the control cavity;

[0063] The opening and closing structure can control the adjacent cooling 202 cavities to be connected or closed by the control cavity, and form at least one cooling branch in the sleeve body 40.

[0064] In this embodiment, the fluid control structure 41 includes:

[0065] The mounting body is detachably mounted on the sleeve body 40 and is connected by bolts 31;

[0066] A plurality of water inlet cavities 411, corresponding to each cooling cavity 202, and connected to one end of the corresponding cooling cavity 202 (the water inlet end of the cooling cavity);

[0067] A plurality of drainage cavities 412 corresponding to each cooling cavity 202 and connected to the other end (drainage end) of the corresponding cooling cavity 202;

[0068] A communication cavity 413 connects the adjacent water inlet cavity 411 and the drainage cavity 412;

[0069] A plurality of water inlet valves 51 and water discharge nozzles 52 are provided on the mounting body and are respectively connected to the water inlet chamber 411 and the water discharge chamber 412;

[0070] The opening and closing structure is composed of a first control structure for controlling the opening and closing of the drainage end and a second control structure arranged in the connecting cavity 413 .

[0071] In this embodiment, the water inlet chamber, the water discharge chamber and the communication chamber constitute the control chamber of this embodiment.

[0072] In this embodiment, the first control structure includes:

[0073] A spring cavity 60 is formed in the mounting body and corresponds to each drain nozzle 52;

[0074] Piston 61;

[0075] The piston shaft 62 is slidably connected in the spring chamber 60;

[0076] A closing spring 63 connects the spring chamber 60 and the piston shaft 62;

[0077] An electromagnet 64 is provided in the mounting body;

[0078] When the electromagnet 64 is energized to generate magnetism, the piston shaft 62 is attracted and the piston is controlled to open the drain nozzle 52;

[0079] When the electromagnet 64 is powered off and loses its magnetism, the piston shaft 62 is controlled by the closing spring 63 to drive the piston 61 to close the drain nozzle 52 .

[0080] In this embodiment, the second control structure includes:

[0081] A pressure relief plate 70 is installed in the communication chamber 413 and is provided with pressure relief holes 71;

[0082] The pressure relief valve core 72 is mounted on the pressure relief plate 70 via a pressure relief spring 73;

[0083] The diameter of the communication cavity 413 gradually expands from the water flow direction.

[0084] In this embodiment, the water inlet valve is a one-way valve.

[0085] refer to Figure 1-6 , the principle of this embodiment is:

[0086] When producing thin copper rods, the outer mold is disassembled and replaced with an inner mold suitable for the thin copper rods, and the extrusion mold of this embodiment is installed at the output end of the extruder. When the extruder is working, the water pump sends water into any water inlet cavity (in Figure 4 For example, it can be sent to the water inlet chamber in the lower right corner), and when the electromagnet is powered off, each drainage nozzle is closed by the piston. When water enters from the water inlet chamber and flows in the cooling chamber and enters the drainage chamber on the left after cooling the inner mold, since the drainage nozzle is closed, the water pressure in the drainage chamber rises and pushes open the second control structure connected to it. The water in the drainage chamber enters the next water inlet chamber from the connecting chamber, and thus passes through each water inlet chamber, cooling chamber and drainage chamber in turn, and exits from the drainage nozzle of the last drainage chamber (with Figure 4 For example, the water is discharged from the drain nozzle at the upper left corner, thereby completing the cooling of the inner mold;

[0087] Therefore, when producing thin copper rods, this embodiment only needs to supply water to a water inlet chamber through a water pump, and the water flow is moved by the water inlet chamber, cooling chamber, drainage chamber and connecting chamber, flowing around the inner mold, which can improve the use effect of cooling water.

[0088] When producing thick copper rods, the cooling effect required varies according to the specifications of the copper rods (generally, thick copper rods require higher cooling requirements). Therefore, a certain number of pistons can be opened, that is, a certain number of electromagnets can be energized, and water can be supplied to each water inlet cavity through multiple water pumps. In this way, each stream of coolant can only flow in each cooling cavity, and the second control structure in the connecting cavity will not be opened. In this way, the coolant can circulate quickly in each cooling cavity and be discharged, which can quickly dissipate heat from the inner mold, thereby adapting to the production of thick copper rods.

[0089] Embodiment 2 is different from Embodiment 1 in that

[0090] like Figure 7 As shown, in this embodiment, the outer mold 30 includes:

[0091] Ontology 80;

[0092] A positioning ring 81 is formed on one side of the body 80 and is adapted to a positioning groove provided at one end of the cooling jacket 20;

[0093] A disassembly groove 82 is formed on the other side of the body 80, and threaded holes corresponding to each other are provided at the bottom of the disassembly groove 82 and the cooling jacket 20;

[0094] The screw sleeve 83 is detachably connected to the disassembly groove 82, and both ends of the screw sleeve are penetrated and provided for the material of the extruder to enter the inner mold;

[0095] The groove wall of the disassembly groove 82 and one end of the threaded sleeve 83 are provided with internal threads and external threads that match each other, and the body 80 is fixed to the cooling sleeve 20 by bolts passing through threaded holes.

[0096] refer to Figure 7 In this embodiment, the main body, positioning changer and screw sleeve are coaxially arranged. During installation, the screw sleeve is disassembled from the main body, and after the inner mold is installed, the main body is matched with the cooling sleeve and fixed by bolts, and then the screw sleeve is installed on the main body. In this way, the screw sleeve limits the removal of the bolts in the groove, thereby improving the stability of the fixation of the main body and the cooling sleeve.

[0097] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An extrusion die for a copper rod extruder, comprising an inner die (10), a cooling jacket (20) and an outer die (30) arranged coaxially, wherein the inner die (10) has a die cavity (100) matching the output end of the extruder, and the die is detachably arranged at the output end of the extruder through the outer die (30), characterized in that: The cooling jacket (20) comprises: A sleeve body (40) is coaxially sleeved on the inner mold (10); A fluid control structure (41) is mounted on the sleeve (40); Wherein, a plurality of cooling cavities (202) arranged at intervals are formed on the contact surface between the sleeve (40) and the inner mold (10); A control cavity for communicating with the cooling cavity (202) is formed inside the fluid control structure (41), and the control cavity has a plurality of water inlet ends and water outlet ends corresponding to the cooling cavities (202), and an opening and closing structure for adjusting the control cavity; The opening and closing structure can control adjacent cooling cavities (202) to be connected or closed by the control cavity, and form at least one cooling branch in the sleeve body (40).

2. The extrusion die for a copper rod extruder according to claim 1, characterized in that: The fluid control structure (41) comprises: A mounting body, detachably mounted on the sleeve body (40); A plurality of water inlet chambers (411), corresponding to each cooling chamber (202) and connected to one end of the corresponding cooling chamber (202); A plurality of drainage cavities (412), corresponding to each cooling cavity (202) and connected to the other end of the corresponding cooling cavity (202); A communication cavity (413) connecting the adjacent water inlet cavity (411) and the drainage cavity (412); A plurality of water inlet valves (51) and water discharge nozzles (52) are arranged on the mounting body and are respectively connected to the water inlet chambers (411) and the water discharge chambers (412); The opening and closing structure is composed of a first control structure for controlling the opening and closing of the drainage end and a second control structure arranged in the connecting cavity (413).

3. The extrusion die for a copper rod extruder according to claim 2, characterized in that: The first control structure comprises: A spring chamber (60) is formed in the mounting body and corresponds to each drain nozzle (52); Piston (61); A piston shaft (62) is slidably connected in the spring chamber (60); A closing spring (63) connects the spring chamber (60) and the piston shaft (62); An electromagnet (64) is disposed in the mounting body; When the electromagnet (64) is energized to generate magnetism, it attracts the piston shaft (62) and controls the piston to open the drain nozzle (52); When the electromagnet (64) is powered off and loses its magnetism, the piston shaft (62) is controlled by the closing spring (63) to drive the piston (61) to close the drain nozzle (52).

4. An extrusion die for a copper rod extruder according to claim 2 or 3, characterized in that: The second control structure comprises: A pressure relief plate (70) is installed in the communication cavity (413) and is provided with pressure relief holes (71); A pressure relief valve core (72) is mounted on the pressure relief plate (70) via a pressure relief spring (73); Wherein, the diameter of the connecting cavity (413) gradually expands from the direction of water flow.

5. An extrusion die for a copper rod extruder according to any one of claims 1 to 3, characterized in that: The outer mold (30) comprises: Ontology(80); A positioning ring (81) is formed on one side of the body (80) and is adapted to fit a positioning groove provided at one end of the cooling jacket (20); A disassembly groove (82) is formed on the other side of the body (80), and threaded holes corresponding to each other are provided on the bottom of the disassembly groove (82) and the cooling jacket (20); A screw sleeve (83) is detachably connected to the disassembly groove (82); The groove wall of the disassembly groove (82) and one end of the threaded sleeve (83) are provided with internal threads and external threads that match each other, and the body (80) is fixed to the cooling sleeve (20) by bolts passing through the threaded holes.

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