Extrusion forming device

Abstract

The utility model discloses an extrusion forming device. The extrusion forming device comprises a rack, an outer mold, a heating assembly, a discharging nozzle, an extrusion part and a cooling groove. The outer mold is arranged on the rack and provided with a mold cavity, a top opening and a bottom opening, the heating assembly is arranged on the outer mold and is used for heating the mold cavity; the discharging nozzle is arranged at the bottom opening of the outer mold, a forming hole is formed in the discharging nozzle in a penetrating mode, and the forming hole communicates with the bottom opening; the extrusion part is movably arranged on the rack, and in the moving process of the extrusion part, the extrusion part can enter the mold cavity through the top opening; the cooling groove is formed below the discharging nozzle, and the end, away from the bottom opening, of the forming hole faces the cooling groove. The heating assembly heats metal materials in the die cavity to be in a molten state or softened, then the extrusion part enters the die cavity from the top opening, the metal materials in the die cavity are extruded out of the forming hole to form metal wires, and the metal wires enter the cooling groove to be cooled and formed. The device is simple in structure and operation, low in equipment cost, small in occupied area and convenient to arrange.

Description

Technical Field

[0001] This application belongs to the field of metal wire preparation technology, specifically relating to an extrusion molding apparatus. Background Technology

[0002] Metal wires are widely used in binding and high-precision cutting. Currently, metal wires are typically produced by drawing, usually in multiple passes. Multi-pass drawing offers high linear speeds, high levels of mechanization and automation, and high productivity and labor efficiency. However, existing multi-pass drawing methods require multiple dies, resulting in high equipment costs. Utility Model Content

[0003] The technical problem to be solved by this application is that the existing multi-pass drawing equipment is expensive. In order to solve this technical problem, an extrusion molding device with simple structure and low equipment cost is provided.

[0004] The technical solution proposed in this application is as follows:

[0005] An extrusion molding apparatus, comprising:

[0006] frame;

[0007] An outer mold is disposed on the frame, and the outer mold has a mold cavity and a top opening and a bottom opening communicating with the mold cavity;

[0008] A heating component is disposed in the outer mold and is used to heat the mold cavity;

[0009] The discharge nozzle is located at the bottom opening of the outer mold, and the discharge nozzle has a through forming hole that communicates with the bottom opening.

[0010] An extruder is movably mounted on the frame, and during the movement of the extruder, the extruder can enter the mold cavity through the top opening;

[0011] A cooling tank is located below the discharge nozzle, with the end of the forming hole away from the bottom opening facing the cooling tank.

[0012] Using the extrusion molding apparatus described above, the heating component heats the metal material in the mold cavity to a molten or softened state. The extruder then enters the mold cavity through the top opening, extruding the metal material from the forming orifice to form metal wire. The metal wire enters a cooling tank to cool and solidify. This extrusion molding apparatus has a simple structure and operation, low equipment cost, small footprint, and is easy to install.

[0013] Furthermore, the discharge nozzle is detachably disposed at the bottom opening of the outer mold.

[0014] Furthermore, the heating assembly includes a heating sleeve and a heating module. The heating sleeve is disposed on the outside of the outer mold, and the heating module is connected to the discharge nozzle to heat the bottom of the mold cavity through the discharge nozzle.

[0015] Furthermore, the heating assembly also includes an insulation sleeve, which covers the outside of the heating sleeve.

[0016] Furthermore, the discharge nozzle is provided with a heating chamber and a liquid inlet and a liquid outlet communicating with the heating chamber, and the forming hole is offset from the heating chamber, the liquid inlet and the liquid outlet;

[0017] The heating module includes an inlet pipe and an outlet pipe, the inlet pipe being connected to the inlet port and the outlet pipe being connected to the outlet port.

[0018] Furthermore, the heating assembly also includes a temperature detector for detecting the temperature of the outer mold.

[0019] Furthermore, the extrusion molding apparatus also includes a valve assembly disposed on the frame and located below the discharge nozzle, the valve assembly being used to open and close the molding orifice.

[0020] Furthermore, the valve assembly includes a valve seat and a gate. The valve seat is disposed on the frame, and the gate is movably disposed on the valve seat and located below the discharge nozzle. During the movement of the gate, it can open and close the forming hole.

[0021] Furthermore, the extrusion molding apparatus also includes an extrusion drive component, which is disposed on the frame and connected to the extruded component to drive the extruded component to move relative to the frame.

[0022] Furthermore, the extrusion molding apparatus also includes a connector and an anti-detachment component. The extrusion drive component is connected to the connector, and the connector and the extruder are in contact via a spherical pair. One end of the anti-detachment component is fixedly connected to one of the connector and the extruder, and the other end is movably connected to the other of the connector and the extruder. Attached Figure Description

[0023] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.

[0024] Figure 1 This is a schematic diagram of the structure of an extrusion molding apparatus provided in one embodiment of this application;

[0025] Figure 2 for Figure 1A schematic diagram of the structure at point A in the extrusion molding apparatus shown;

[0026] Figure 3 for Figure 2 A cross-sectional view of the structure at point A shown;

[0027] Figure 4 for Figure 1 The diagram shows the connection structure between the extruder and the extrusion drive in the extrusion molding apparatus.

[0028] Label Explanation:

[0029] 110. Frame; 120. Outer mold; 121. Mold cavity; 122. Top opening; 123. Bottom opening; 130. Discharge nozzle; 131. Forming hole; 140. Extruded part; 150. Cooling tank; 161. Heating jacket; 162. Heating module; 163. Insulation jacket; 164. Temperature detector; 165. Control box; 170. Valve assembly; 171. Valve seat; 172. Gate; 173. Heat insulation pad; 180. Extrusion drive; 191. Connector; 192. Anti-detachment part. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the equipment or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0032] like Figures 1 to 3 As shown, this application provides an extrusion molding apparatus, including a frame 110, an outer mold 120, a heating component, a discharge nozzle 130, an extruded part 140, and a cooling tank 150.

[0033] An outer mold 120 is mounted on a frame 110 and has a cavity 121 and a top opening 122 and a bottom opening 123 communicating with the cavity 121. The cavity 121 is used to hold materials. A heating component is mounted on the outer mold 120 and is used to heat the cavity 121 to heat the material in the cavity 121 to a molten or softened state. A discharge nozzle 130 is located at the bottom opening 123 of the outer mold 120, and a cooling tank 150 is located below the discharge nozzle 130. One end of the forming hole 131 communicates with the bottom opening 123, and the other end away from the bottom opening 123 faces the cooling tank 150, so that the molten or softened material is shaped when discharged through the forming hole 131 and then discharged to the cooling tank 150 for cooling and shaping. An extruder 140 is movably mounted on the frame 110, and during the movement of the extruder 140, it can enter the cavity 121 through the top opening 122 to extrude the material in the cavity 121 from the forming hole 131.

[0034] It should be explained that in the actual application of the extrusion molding apparatus described above, the operator places the material (usually metal) into the mold cavity 121, and then heats the material to a molten or softened state using a heating component. Subsequently, the extruder 140 enters the mold cavity 121 through the top opening 122, extruding the material from the mold cavity 121 through the forming hole 131. The extruded material enters the cooling tank 150 to cool and solidify into a finished product. It can be understood that this extrusion molding apparatus can control the size of the finished product by controlling the diameter of the forming hole 131, thereby enabling the preparation of metal wires.

[0035] Using the extrusion molding apparatus described above, the heating component heats the metal material in the mold cavity 121 to a molten or softened state. Then, the extruder 140 enters the mold cavity 121 through the top opening 122, extruding the metal material from the mold cavity 121 through the forming hole 131 to form a metal wire. The metal wire then enters the cooling tank 150 to cool and solidify. This extrusion molding apparatus has a simple structure and operation, low equipment cost, small footprint, and is easy to arrange.

[0036] The cooling groove 150 at the bottom facilitates the cooling of the metal wire, enabling the extrusion molding device to be applied to metals with low melting points. Simultaneously, the forming hole 131 restricts the size of the metal wire, ensuring dimensional stability and high precision. Furthermore, the simple structure and ease of cleaning of this extrusion molding device make it suitable for the preparation of valuable metal wires.

[0037] It should be noted that the extruder 140 enters the mold cavity 121 through the top opening 122 and extrudes the material. Therefore, the cross-sectional shape of the extruder 140 is similar to that of the mold cavity 121, and their dimensions are also close, to avoid most of the material being extruded through the gap between the extruder 140 and the inner wall of the mold cavity 121. Furthermore, when the material is metal, molten or softened metal has poor fluidity. This can also be prevented by controlling the gap between the extruder 140 and the inner wall of the mold cavity 121, as well as the extrusion speed of the extruder 140.

[0038] In addition, the finished product enters the cooling tank 150 to be cooled into metal wire. The cooling tank 150 may contain coolant, and the metal wire comes into contact with the coolant to achieve cooling and shaping. The cooling tank 150 can also serve as a storage structure for the finished metal wire.

[0039] In one embodiment, the heating assembly includes a heating sleeve 161 and a heating module 162. The heating sleeve 161 is disposed on the outer side of the outer mold 120 for heating the sidewalls of the outer mold 120. The heating module 162 is connected to the discharge nozzle 130 to heat the bottom of the mold cavity 121 through the discharge nozzle 130. In this way, the material in the mold cavity 121 can be uniformly heated by the heating sleeve 161, the heating module 162, and the discharge nozzle 130; at the same time, the material discharged through the discharge nozzle 130 can also be heated by the heating module 162, preventing the molding hole 131 from becoming blocked due to material cooling.

[0040] Furthermore, the discharge nozzle 130 has a heating chamber and an inlet and an outlet communicating with the heating chamber. The inlet and outlet are located on the side of the discharge nozzle 130. The forming hole 131 penetrates the discharge nozzle 130 vertically, and the forming hole 131 is offset from the heating chamber, the inlet, and the outlet. The heating module 162 includes an inlet pipe and an outlet pipe, both of which are connected to the discharge nozzle 130. The inlet pipe communicates with the inlet, and the outlet pipe communicates with the outlet, so that the heating medium is input into the heating chamber through the inlet pipe and the heated medium after heat exchange in the heating chamber is output through the outlet pipe.

[0041] Understandable, Figure 2 The liquid inlet pipe and the liquid outlet pipe are located on the same side of the discharge nozzle 130. In order to realize the circulation of the heating medium, the heating chamber can be set in the form of a channel, and preferably a channel evenly distributed inside the discharge nozzle 130. The two ends of the channel penetrate through the side wall of the discharge nozzle 130 to form the liquid inlet and liquid outlet mentioned above.

[0042] In one embodiment, the heating assembly further includes an insulation sleeve 163, which covers the outside of the heating sleeve 161 to ensure that the heat of the heating sleeve 161 is retained inside, preventing heat leakage and reducing energy consumption.

[0043] In one embodiment, the heating assembly further includes a temperature detector 164, which detects the temperature of the outer mold 120 and adjusts the heating power of the heating assembly on the material in the mold cavity 121 according to the temperature, ensuring that the material is in a molten or softened state while avoiding excessively high material temperature. Preferably, the temperature detector 164 is a temperature control probe, and the extrusion molding device is correspondingly provided with a control box 165, which is disposed on the frame 110 and connected to both the temperature detector 164 and the heating assembly, so as to control the operation of the heating assembly according to the detection result of the temperature detector 164.

[0044] In one embodiment, the discharge nozzle 130 is detachably disposed at the bottom opening 123 of the outer mold 120. This allows the discharge nozzle 130 to be replaced as needed, and different discharge nozzles 130 can have different forming holes 131 sizes, thereby enabling the production of metal wires or other products of different sizes. Furthermore, the detachable discharge nozzle 130 facilitates cleaning of the device. Preferably, the discharge nozzle 130 has multiple forming holes 131 to improve production efficiency.

[0045] In one embodiment, the extrusion molding apparatus further includes a valve assembly 170, which is disposed on the frame 110 and located below the discharge nozzle 130. The valve assembly 170 is used to open and close the forming orifice 131, thereby controlling the operation of the extrusion molding apparatus. It should be explained that without the valve assembly 170, during operation, the material in the mold cavity 121 is first heated by the heating assembly until it reaches a molten or softened state. Then, the extruder 140 extrudes the material from the mold cavity 121. However, before the extruder 140 extrudes, some material may flow out of the forming orifice 131. The outflow rate is slow and the amount is small, causing the material to easily agglomerate and cool, affecting the quality of the finished product. By using the valve assembly 170, the forming orifice 131 is opened when the extruder 140 begins extrusion. The material extrusion rate is more stable, preventing agglomeration. Furthermore, the material cools and solidifies rapidly after entering the cooling tank 150, ensuring better quality of the finished product.

[0046] Furthermore, the valve assembly 170 includes a valve seat 171 and a gate 172. The valve seat 171 is disposed on the frame 110, and the gate 172 is movably disposed on the valve seat 171 and located below the discharge port. During its movement, the gate 172 can open and close the forming orifice 131. Specifically... Figure 1 In the embodiment shown, the gate 172 is slidably disposed on the valve seat 171, and the gate 172 opens and closes the forming hole 131 by pushing and pulling.

[0047] It should be noted that the valve seat 171 can also serve as a structure supporting the discharge nozzle 130 and the outer mold 120. To prevent heat from the valve seat 171 from being transferred to the frame 110, a heat insulation pad 173 can be provided at the connection between the valve seat 171 and the frame 110.

[0048] In one embodiment, the extrusion molding apparatus further includes an extrusion drive 180, which is disposed on the frame 110 and connected to the extruder 140 to drive the extruder 140 to move relative to the frame 110, thereby inserting it into the mold cavity 121 through the top opening 122 during the movement. Specifically... Figure 1 In the embodiment shown, the extrusion drive 180 is a hydraulic cylinder to generate a large extrusion force; and the extrusion drive 180 drives the extrusion member 140 to reciprocate in the vertical direction.

[0049] like Figure 4 As shown, in one embodiment, the extrusion molding apparatus further includes a connector 191 and an anti-detachment component 192. The extrusion drive component 180 is connected to the connector 191, and the connector 191 and the extruder 140 are in contact via a spherical joint. One end of the anti-detachment component 192 is fixedly connected to one of the connector 191 and the extruder 140, and the other end is movably connected to the other of the connector 191 and the extruder 140. Thus, the spherical joint allows the extruder 140 to swing relative to the connector 191. When there is a positional deviation in the outer mold 120, the extruder 140 can adjust its position to ensure that it can be inserted into the mold cavity 121. It is understood that the deviation of the outer mold 120 is usually small, so the insertion of the extruder 140 into the mold cavity 121 can be ensured by the swinging of the extruder 140.

[0050] In practical applications, the anti-detachment component 192 is a bolt. One end of the bolt is threaded to the extrusion component 140, and the other end passes through the connection hole provided in the connector 191. The diameter of the connection hole is larger than the diameter of the bolt shank but smaller than the size of the bolt head, so that the extrusion component 140 can swing relative to the connector 191 while preventing the extrusion component 140 from falling off.

[0051] The structure of the extrusion molding apparatus has been described. To facilitate understanding of the technical solution of this application, it is combined with... Figure 1 and Figure 2 The working process of the extrusion molding apparatus in the above embodiments is described as follows:

[0052] First, the forming hole 131 is closed by the gate 172. Then, metal material is placed in the mold cavity 121. The metal in the mold cavity 121 is heated to a molten state by the heating jacket 161 and the heating module 162. Then, the extrusion drive 180 drives the extruder 140 to descend and insert into the mold cavity 121. At the same time, the gate 172 is pulled out, opening the forming hole 131. Under the action of the extruder 140, the material is output from the forming hole 131. After output, the filamentous material enters the cooling tank 150 to cool and solidify, forming the finished metal wire. After a batch of metal wires is processed, the extrusion drive 180 drives the extruder 140 to rise, and then pushes the gate 172 to close the forming hole 131. The above actions are then repeated.

[0053] In summary, the extrusion molding apparatus provided in this application has at least the following advantages:

[0054] 1. Because a cooling tank 150 is provided below, the molten metal wire can be cooled rapidly, thereby enabling the preparation of metal wire with a low melting point;

[0055] 2. It has a simple structure, low equipment cost, small footprint, and is easy to operate and clean, making it suitable for the preparation of precious metal wires;

[0056] 3. The 130 discharge nozzle is detachable, which can be used to prepare metal wires of different sizes, and the metal wires are dimensionally stable and highly accurate.

[0057] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An extrusion molding apparatus characterized by comprising: The utility model relates to a kind of extrusion molding machine, including: Rack; Outer die, be provided to the rack, the outer die has die cavity and with the top opening and bottom opening of the die cavity communication; Heating assembly, be provided to the outer die, for the die cavity is heated; Discharge nozzle, be provided at the bottom opening of the outer die, and the discharge nozzle is opened with forming hole, the forming hole is communicated with the bottom opening; Extrusion piece, movably set in the rack, and in the extrusion piece activity process, the extrusion piece can enter the die cavity by the top opening; Cooling tank, be provided below the discharge nozzle, the forming hole end away from the bottom opening is towards the cooling tank.

2. The extrusion apparatus of claim 1, wherein The discharge nozzle is detachably provided at the bottom opening of the outer die.

3. The extrusion apparatus of claim 1, wherein The heating assembly includes heating sleeve and heating module, the heating sleeve is provided at the outside of the outer die, the heating module is connected with the discharge nozzle, to heat the bottom of the die cavity by the discharge nozzle.

4. The extrusion apparatus of claim 3, wherein The heating assembly further includes heat preservation sleeve, and the heat preservation sleeve is covered at the outside of the heating sleeve.

5. The extrusion apparatus of claim 3, wherein The discharge nozzle is opened with heating cavity and with the heating cavity communication inlet and outlet, the forming hole and the heating cavity, the inlet and the outlet are staggered; The heating module includes inlet pipe and outlet pipe, the inlet pipe is communicated with the inlet, and the outlet pipe is communicated with the outlet.

6. The extrusion apparatus of claim 3, wherein The heating assembly further includes temperature detector, and the temperature detector is used to detect the temperature of the outer die.

7. The extrusion apparatus of claim 1, wherein Further including valve assembly, the valve assembly is provided in the rack, and located below the discharge nozzle, and the valve assembly is used to open and close the forming hole.

8. The extrusion apparatus of claim 7, wherein The valve assembly includes valve seat and gate, the valve seat is provided in the rack, and the gate is movably set in the valve seat and located below the discharge nozzle, and the gate can open and close the forming hole in activity process.

9. The extrusion apparatus of claim 1, wherein Further including extrusion driving piece, the extrusion driving piece is provided in the rack, and is connected with the extrusion piece, to drive the extrusion piece relatively the rack moves.

10. The extrusion apparatus of claim 9, wherein Further including joint and anti-drop piece, the extrusion driving piece is connected with the joint, and the joint and the extrusion piece are contacted by spherical pair;One end of the anti-drop piece and the joint and the extrusion piece are fixedly connected, and the other end and the joint and the extrusion piece are movably connected.

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