A precision metal-rubber composite product mold and injection molding method thereof

Abstract

The application provides a precision metal rubber composite product mold and an injection molding method thereof, which comprise an electromagnetic feeding seat, the electromagnetic feeding seat is arranged in a lifting mode, the electromagnetic feeding seat is used for adsorbing a magnetic conductive stainless steel wire in a fluffy state through a built-in first electromagnet; and a stamping mechanism, the stamping mechanism comprises a stamping rod and a limiting sleeve arranged in a lifting mode, and the stamping mechanism is matched with the electromagnetic feeding seat or an injection molding mold under the driving of a translation mechanism. The application adopts a metal wire stamping molding and injection molding integrated molding structure, reduces the transfer steps of the metal wire, realizes the central release of the magnetic conductive stainless steel wire by using a magnetic adsorption mode, discharges the gas in the magnetic conductive stainless steel wire by excessively compressing the magnetic conductive stainless steel wire, and pushes the rubber injection liquid into the injection cabin through the first injection slot during the recovery of the magnetic conductive stainless steel wire, so that the rubber injection agent is more beneficial to entering the porous structure, and the protection of the rubber on the internal metal wire is further strengthened.

Description

Technical Field

[0001] This invention relates to the field of injection mold technology, specifically to a precision metal-rubber composite product mold and its injection molding method. Background Technology

[0002] Traditional metal-rubber is a homogeneous, elastic, porous metal wire stacked buffer structure. This buffer structure is manufactured by arranging a certain mass of stretched, spiral metal wires in an orderly manner in a stamping die, and then forming it using a cold stamping method. Its raw material is metal wire, which possesses both the inherent properties of the selected metal and the elasticity of rubber, hence its name. However, traditional metal-rubber has poor corrosion resistance and uneven stress distribution. Long-term impact can easily lead to friction damage between the metal wires, affecting the maintenance of elasticity and thus limiting its application. To protect the metal wire cluster structure and further improve its elastic performance, existing technologies disclose composite structures combining metal and rubber, and these composite metal-rubber structures are widely used in earthquake-resistant structures.

[0003] The prior art, disclosed in CN109277500A, discloses a method for preparing a hollow frustum-shaped metal-rubber component based on woven metal wire mesh. The method includes the following steps: 1. Selecting metal wire and weaving it into a metal wire mesh using a metal wire mesh weaving machine; 2. Preparing a metal-rubber blank using a reverse-winding process; 3. Stamping the metal-rubber blank using a frustum-shaped stamping die; 4. Demolding the stamped hollow frustum-shaped metal-rubber component using a demolding accessory; 5. Trimming and cleaning the formed hollow frustum-shaped metal-rubber component to remove burrs and dirt from the surface. This preparation method improves the forming quality of the metal-rubber component and solves the technical problem in preparing hollow frustum-shaped metal-rubber components.

[0004] The aforementioned device is used to achieve stamping of metal wires. After stamping, the formed traditional metal rubber is then sent into an injection mold for encapsulation injection molding. However, this molding method has certain drawbacks: 1. The metal rubber cannot be fixed after being sent into the injection mold, resulting in the metal rubber shifting to one side after injection molding. This leads to uneven stress on various parts of the composite structure after injection molding. In the existing technology, the metal rubber is traction and fixed by filamentous material. After injection molding, the protruding part of the rubber is cut off. Although this solves the above problem, injection molding personnel need to spend time on mounting and subsequent repairs, which is not conducive to improving production and sales. 2. The stamped metal wire mesh is in a porous state inside the injection mold. Due to the existence of this dense porous structure, the injection rubber has difficulty entering the porous structure during injection molding, thus forming air bubbles. The presence of air bubbles means that the internal metal wires cannot be protected, and thus, during long-term fatigue impact, the internal metal wires fatigue fracture, affecting the elastic performance of the device. Summary of the Invention

[0005] The purpose of this invention is to provide a precision metal-rubber composite product mold and its injection molding method to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A precision metal-rubber composite product mold, comprising:

[0008] An electromagnetic feeding base is provided, wherein the electromagnetic feeding base is lifted and the electromagnetic feeding base attracts fluffy magnetic stainless steel wires through a built-in first electromagnet.

[0009] A stamping mechanism, comprising a rising and lowering stamping rod and a limiting sleeve, wherein the stamping rod is rising and loweringly inserted into a stamping hole in the limiting sleeve, and a second electromagnet is built into the bottom of the stamping rod; the electromagnetic feeding seat rises to feed a fluffy magnetically conductive stainless steel wire into the stamping hole so that it is magnetically attracted to the second electromagnet; and an exhaust hole is also provided at the bottom of the stamping rod.

[0010] In an injection molding die, the stamping mechanism alternately cooperates with the electromagnetic feeder or the injection molding die under the drive of the translation mechanism. The injection molding die is fixedly set and has an injection chamber with an upper opening. The bottom and side of the injection molding die are respectively provided with a first injection groove and a second injection groove that communicate with the injection chamber. The stamping rod and the limiting sleeve move up and down into the injection chamber and close the upper opening. When the stamping rod and the limiting sleeve descend into the injection chamber, they compress the fluffy magnetic stainless steel wire. When the stamping rod and the limiting sleeve rise, they push rubber injection molding agent into the stretched magnetic stainless steel wire through the first injection groove and the second injection groove. After cooling, a metal-rubber composite is formed.

[0011] Preferably, a lifting slide rod is also fixedly installed on the limiting sleeve. The lifting slide rod is movably inserted into the slide rod hole opened in the stamping rod, and a compression spring is also sleeved on the outside of the lifting slide rod.

[0012] Preferably, the injection molding die is also provided with a retractable ejector rod on the side away from the injection chamber opening.

[0013] Preferably, the electromagnetic feeding seat is synchronously raised and lowered under the push of the first hydraulic lifting push rod, the limiting sleeve is fixedly connected to the telescopic arm of the second hydraulic lifting push rod, the second hydraulic lifting push rod is fixedly installed on the translation seat, the translation seat slides under the drive of the power mechanism, and a third hydraulic push rod is also fixedly installed on the drive arm of the second hydraulic lifting push rod, the telescopic arm of the third hydraulic push rod is fixedly connected to the stamping rod.

[0014] Preferably, the injection molding die, the stamping rod, and the limiting sleeve are all equipped with a water cooling mechanism.

[0015] An injection molding method for a precision metal-rubber composite product mold, using the aforementioned precision metal-rubber composite product mold, includes the following steps:

[0016] Step 1: Place the fluffy magnetic stainless steel wire onto the electromagnetic feeder using a clamping mechanism or manually. Activate the first electromagnet to magnetically attract the fluffy magnetic stainless steel wire. The electromagnetic feeder rises under the push of the lifting mechanism, feeding the fluffy magnetic stainless steel wire into the stamping hole. The fluffy magnetic stainless steel wire comes into contact with the second electromagnet energized at the bottom of the stamping rod and is attracted. At this point, the first electromagnet stops energizing, causing the fluffy magnetic stainless steel wire to change its attraction state and enter the stamping mechanism.

[0017] Step Two: Driven by the translation device, the stamping mechanism disengages from the electromagnetic feeding seat and engages with the injection molding die. The stamping rod and the limiting sleeve enter the injection chamber simultaneously under the drive of the lifting mechanism. As the stamping rod continues to descend, the fluffy magnetic stainless steel wire is compressed and overcompressed in the injection chamber under the pressure of the stamping rod. Since the compressed wire itself has a certain degree of ductility, the overcompressed magnetic stainless steel wire will extend to a certain extent during the retraction of the stamping rod. Taking advantage of this phenomenon, during the extension of the magnetic stainless steel wire, the rubber injection liquid is pushed into the injection chamber through the first injection groove, which can promote the injection rubber to deeply fill the gaps formed by the accumulation of magnetic stainless steel wire. During this process, the second electromagnet remains energized and attracted.

[0018] Step 3: During the injection process in the first injection tank, the retraction of the stamping rod and the limiting sleeve drives the magnetic stainless steel wire to retract synchronously. When the magnetic stainless steel wire rises and leaves the injection chamber at a certain height, the second electromagnet stops attracting the magnetic stainless steel wire. Due to the viscous force of the rubber injection agent, the magnetic stainless steel wire stops rising. At this time, the second injection tank pumps rubber injection agent above the magnetic stainless steel wire to fill and compensate for the negative pressure space above, until the entire magnetic stainless steel wire is completely wrapped and filled by the injection rubber.

[0019] Step 4: After the magnetic stainless steel wire is filled and cooled, the second electromagnet is restarted. The adsorption force generated by the second electromagnet pulls the formed composite metal rubber out of the injection chamber, thus completing the production process of the composite metal rubber. Subsequent processing can repeat the above steps.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. This invention adopts an integrated molding structure of metal wire stamping and injection molding, which reduces the metal wire transfer steps and greatly improves production efficiency. At the same time, it uses magnetic adsorption to realize the central release of the magnetic stainless steel wire, ensuring that the rubber injection molding agent can centrally wrap the entire magnetic stainless steel wire.

[0022] 2. The stamping rod of the present invention serves as both a compression and shaping mechanism for the magnetically conductive stainless steel wire and a sealing mechanism for the injection chamber. During the injection molding process, the internal gas is discharged by excessively compressing the magnetically conductive stainless steel wire. As the magnetically conductive stainless steel wire recovers its shape, the rubber injection liquid is pushed into the injection chamber through the first injection groove, which is more conducive to the rubber injection agent entering the porous structure and further strengthens the protection of the internal metal wire by the rubber.

[0023] This invention employs an integrated metal wire stamping and injection molding structure, reducing the metal wire transfer steps. It utilizes magnetic adsorption to achieve the central release of the magnetically conductive stainless steel wire. By excessively compressing the magnetically conductive stainless steel wire to expel internal gas, and as the magnetically conductive stainless steel wire recovers its shape, it pushes rubber injection liquid into the injection chamber through the first injection groove. This facilitates the entry of the rubber injection agent into the porous structure, further strengthening the rubber's protection of the internal metal wire. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the stamping and injection molding process of the present invention;

[0025] Figure 2 This is a schematic diagram of the electromagnetic feeder of the present invention conveying a magnetically conductive stainless steel wire.

[0026] Figure 3 This is a schematic diagram of the stamping mechanism and injection molding die structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the connection structure of the stamping mechanism of the present invention.

[0028] In the diagram: 1 Electromagnetic feeder, 2 Magnetic stainless steel wire, 3 First electromagnet, 4 Stamping mechanism, 5 Stamping rod, 6 Limit sleeve, 7 Stamping hole, 8 Second electromagnet, 9 Vent hole, 10 Injection molding mold, 11 Injection chamber, 12 First injection groove, 13 Second injection groove, 14 Lifting slide rod, 15 Slide rod hole, 16 Extrusion spring, 17 Demolding ejector rod, 18 First hydraulic lifting ejector rod, 19 Second hydraulic lifting ejector rod, 20 Translation seat, 21 Third hydraulic ejector rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figures 1-4 The present invention provides a technical solution:

[0031] Example 1:

[0032] A precision metal-rubber composite product mold, comprising:

[0033] Electromagnetic feeder 1, the electromagnetic feeder 1 is set up in a lifting manner, the electromagnetic feeder 1 attracts the fluffy magnetic stainless steel wire 2 through the built-in first electromagnet 3.

[0034] The stamping mechanism 4 includes a rising and lowering stamping rod 5 and a limiting sleeve 6. The stamping rod 5 is rising and lowering and inserted into the stamping hole 7 opened in the limiting sleeve 6. A second electromagnet 8 is built into the bottom of the stamping rod 5. The electromagnetic feeding seat 1 rises to feed the fluffy magnetic stainless steel wire 2 into the stamping hole 7 so that it is magnetically attracted to the second electromagnet 8. The bottom of the stamping rod 5 is also provided with an exhaust hole 9.

[0035] The injection molding mold 10 and the stamping mechanism 4 alternately cooperate with the electromagnetic feeding seat 1 or the injection molding mold 10 under the drive of the translation mechanism. The injection molding mold 10 is fixedly set and has an injection chamber 11 with an upper opening inside. The bottom and side of the injection molding mold 10 are respectively provided with a first injection groove 12 and a second injection groove 13 that communicate with the injection chamber 11. The stamping rod 5 and the limiting sleeve 6 move up and down into the injection chamber 11 and close the upper opening. During the process of the stamping rod 5 and the limiting sleeve 6 descending into the injection chamber 11, they compress the fluffy magnetic stainless steel wire 2. During the process of the stamping rod 5 and the limiting sleeve 6 rising, they push the rubber injection agent into the stretched magnetic stainless steel wire 2 through the first injection groove 12 and the second injection groove 13. After cooling, a metal-rubber composite is formed.

[0036] In this embodiment, the electromagnetic feeder 1 serves as the initial holding and conveying mechanism for the fluffy magnetic stainless steel wire 2. During its ascent, the electromagnetic feeder 1 feeds the magnetic stainless steel wire 2 into the punching hole 7, causing the end of the magnetic stainless steel wire 2 away from the electromagnetic feeder 1 to contact the bottom of the punching rod 5. The alternating operation of the first electromagnet 3 and the second electromagnet 8 achieves the conveying and adsorption of the magnetic stainless steel wire 2. In this embodiment, the magnetic stainless steel wire 2 is made of martensitic stainless steel, which has advantages such as high strength and strong corrosion resistance. After the fluffy magnetic stainless steel wire 2 enters the punching mechanism 4, the punching rod 5 and the limiting sleeve 6 descend synchronously, and both enter the injection groove 13 of the injection molding mold 10 successively. Inside, since the limiting sleeve 6 reaches the bottom of the injection tank 13 first, it stops descending after reaching the bottom. At this time, the stamping rod 5 continues to press down. During this process, the volume of the loose magnetic stainless steel wire 2 shrinks and forms a clump structure. The descent height of the stamping rod 5 is set according to the filling density of the magnetic stainless steel wire 2. Since the clump structure of the magnetic stainless steel wire 2 has a certain elasticity, the stamping rod 5 makes the clump of magnetic stainless steel wire 2 in an over-compressed state. At this time, its internal porous structure is further stacked, thereby greatly reducing the internal porous volume. At this time, rubber injection agent is pushed into the injection chamber 11 through the first injection tank 12. As the stamping rod 5 gradually retracts, the volume of the porous structure increases during this process, and the increase The large volume of rubber injection molding agent can be filled evenly, thus greatly increasing the rubber filling density in the porous gaps. The rubber structure reduces the contact between metals during compression, which helps prevent the loss of elasticity due to repeated friction between metal wires, extending the service life of the metal-rubber composite. Simultaneously, to ensure that the magnetic stainless steel wire 2 is uniformly and centrally wrapped with rubber injection molding agent, the second electromagnet 8 maintains its attraction to the magnetic stainless steel wire 2 during the retraction of the stamping rod 5. It stops working after the magnetic stainless steel wire 2 reaches a certain height, at which point the magnetic stainless steel wire 2 detaches from the stamping rod 5, and rubber injection molding agent is pumped into the upper part of the magnetic stainless steel wire 2 through the second injection groove 13, thereby making the magnetic stainless steel wire... The magnetic stainless steel wire 2 is fully wrapped at all positions. By pre-quantitatively controlling the winding density of the magnetic stainless steel wire 2, its compression volume can be determined during the compression process of the stamping rod 5. Therefore, after the magnetic force of the second electromagnet 8 disappears during the retraction of the stamping rod 5, the position of the magnetic stainless steel wire 2 inside the injection molded body can be guaranteed. Through the centered release of the magnetic stainless steel wire, the elasticity of each part of the molded composite metal-rubber structure is ensured. During the injection molding process, the gap formed at the position of the stamping rod 5, the limiting sleeve 6 and the injection chamber 11 is unavoidable. However, through precision machining, the spacing tolerance is ensured as much as possible, and excessive injection pressure is not required during the injection molding process. Therefore, this gap can ensure that the injection molding agent does not leak in large quantities.To ensure the stability of the stamping rod 5 as it rises and falls on the limiting sleeve 6, a lifting slide rod 14 is installed on the limiting sleeve 6. The lifting slide rod 14 is movably inserted into the slide rod hole 15 of the stamping rod 5, and a compression spring 16 is sleeved on the outside of the lifting slide rod 14. This method ensures stability during the rising and falling process. The high-temperature injection molding agent is cooled and formed by water-cooling mechanisms installed in the injection molding mold 10, the stamping rod 5, and the limiting sleeve 6. The formed metal-rubber composite material is pushed out of the injection chamber 11 by the ejector rod 17, and the magnetic stainless steel wire 2 inside is attracted by restarting the second electromagnet 8, thus allowing the formed material to be carried out of the injection molding mold 10. Later, it can be removed manually, and the formed composite material can be deburred.

[0037] Example 2:

[0038] In this embodiment,

[0039] The electromagnetic feeding seat 1 rises and falls synchronously under the push of the first hydraulic lifting push rod 18. The limiting sleeve 6 is fixedly connected to the telescopic arm of the second hydraulic lifting push rod 19. The second hydraulic lifting push rod 19 is fixedly installed on the translation seat 20. The translation seat 20 slides and moves under the drive of the power mechanism. A third hydraulic push rod 21 is also fixedly installed on the drive arm of the second hydraulic lifting push rod 19. The telescopic arm of the third hydraulic push rod 21 is fixedly connected to the stamping rod 5. Through the above mechanism, the electromagnetic feeding seat 1, the stamping rod 5 and the limiting sleeve 6 are raised or moved in sequence. The above drive mechanism works under the control of the drive PLC central control. Its displacement distance is controlled by the parameter adjustable touch screen, thereby enabling the device to produce composite metal rubber with various elastic properties.

[0040] An injection molding method for a precision metal-rubber composite product mold, using the aforementioned precision metal-rubber composite product mold, includes the following steps:

[0041] Step 1: Place the fluffy magnetic stainless steel wire 2 onto the electromagnetic feeder 1 using a clamping mechanism or manually. Operate the first electromagnet 3 to magnetically attract the fluffy magnetic stainless steel wire 2. The electromagnetic feeder 1 rises under the push of the lifting mechanism, sending the fluffy magnetic stainless steel wire 2 into the punching hole 7. The fluffy magnetic stainless steel wire 2 comes into contact with the second electromagnet 8 energized at the bottom of the punching rod 5 and is attracted. At this time, the first electromagnet 3 stops being energized, causing the fluffy magnetic stainless steel wire 2 to change its attraction state and enter the punching mechanism 4.

[0042] Step 2: The stamping mechanism 4, driven by the translation device, disengages from the electromagnetic feeding seat 1 and engages with the injection molding mold 10. The stamping rod 5 and the limiting sleeve 6 enter the injection chamber 11 simultaneously under the drive of the lifting mechanism. As the stamping rod 5 continues to descend, the fluffy magnetic stainless steel wire 2 is compressed and overcompressed in the injection chamber 11 under the pressure of the stamping rod 5. Since the compressed wire itself has a certain degree of extensibility, the overcompressed magnetic stainless steel wire 2 will extend to a certain extent during the retraction of the stamping rod 5. Taking advantage of this phenomenon, during the extension of the magnetic stainless steel wire 2, the rubber injection liquid is pushed into the injection chamber 11 through the first injection groove 12, which can promote the injection rubber to deeply fill the gaps formed by the accumulation of the magnetic stainless steel wire 2. During this process, the second electromagnet 8 remains in an energized adsorption state.

[0043] Step 3: During the injection process in the first injection tank 12, the retraction of the stamping rod 5 and the limiting sleeve 6 causes the magnetic stainless steel wire 2 to retract synchronously. When the magnetic stainless steel wire 2 rises and leaves the injection chamber 11 at a certain height, the second electromagnet 8 stops attracting the magnetic stainless steel wire 2. Under the action of the rubber injection agent's adhesive force, the magnetic stainless steel wire 2 stops rising. At this time, the second injection tank 13 pumps rubber injection agent above the magnetic stainless steel wire 2 to fill and compensate for the negative pressure space above, until the entire magnetic stainless steel wire 2 is completely wrapped and filled by the injection rubber.

[0044] Step 4: After the magnetic stainless steel wire 2 is filled and cooled, the second electromagnet 8 is restarted. The adsorption force generated by the second electromagnet 8 pulls the formed composite metal rubber out of the injection chamber 11, thus completing the production process of the composite metal rubber. Subsequent processing can repeat the above steps.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A precision metal-rubber composite product mold, characterized in that, include: Electromagnetic feeder (1), the electromagnetic feeder (1) is set in a lifting manner, the electromagnetic feeder (1) adsorbs the fluffy magnetic stainless steel wire (2) through the built-in first electromagnet (3). The stamping mechanism (4) includes a stamping rod (5) and a limiting sleeve (6) that are raised and lowered. The stamping rod (5) is inserted into the stamping hole (7) opened in the limiting sleeve (6) in a raised and lowered manner. A second electromagnet (8) is built into the bottom of the stamping rod (5). The electromagnetic feeding seat (1) rises to feed the fluffy magnetic stainless steel wire (2) into the stamping hole (7) so that it is magnetically attracted to the second electromagnet (8). The bottom of the stamping rod (5) is also provided with an exhaust hole (9). Injection molding die (10), the stamping mechanism (4) alternately cooperates with the electromagnetic feeder (1) or the injection molding die (10) under the drive of the translation mechanism. The injection molding die (10) is fixedly set and has an injection chamber (11) with an upper opening inside. The bottom and side of the injection molding die (10) are respectively provided with a first injection groove (12) and a second injection groove (13) communicating with the injection chamber (11). The stamping rod (5) and the limiting sleeve (6) move up and down into the injection chamber (11) and close its upper opening. The stamping rod (5) and the limiting sleeve (6) descend into the injection chamber (11). 11) During the process, the fluffy magnetic stainless steel wire (2) is compressed. During the upward movement of the stamping rod (5) and the limiting sleeve (6), rubber injection agent is pushed into the injection chamber (11) through the first injection groove (12) set at the bottom of the injection molding mold (10). As the stamping rod (5) gradually retracts, after the magnetic stainless steel wire (2) reaches the preset height, rubber injection agent is pumped into the upper part of the magnetic stainless steel wire (2) through the second injection groove (13) set on the side of the injection molding mold (10), so that the magnetic stainless steel wire (2) is fully wrapped at all positions.

2. A precision metal-rubber composite product mold according to claim 1, characterized in that: The limiting sleeve (6) is also fixedly installed with a lifting slide rod (14), which is movably inserted into the slide rod hole (15) opened in the stamping rod (5), and a compression spring (16) is also sleeved on the outside of the lifting slide rod (14).

3. A precision metal-rubber composite product mold according to claim 1, characterized in that: The injection molding mold (10) is also provided with a retractable ejector rod (17) on the side away from the opening of the injection chamber (11).

4. A precision metal-rubber composite product mold according to claim 1, characterized in that: The electromagnetic feeding seat (1) is synchronously raised and lowered under the push of the first hydraulic lifting push rod (18). The limiting sleeve (6) is fixedly connected to the telescopic arm of the second hydraulic lifting push rod (19). The second hydraulic lifting push rod (19) is fixedly installed on the translation seat (20). The translation seat (20) slides under the drive of the power mechanism. A third hydraulic push rod (21) is also fixedly installed on the drive arm of the second hydraulic lifting push rod (19). The telescopic arm of the third hydraulic push rod (21) is fixedly connected to the stamping rod (5).

5. A precision metal-rubber composite product mold according to claim 1, characterized in that: Water cooling mechanisms are provided in the injection molding mold (10), the stamping rod (5) and the limiting sleeve (6).

6. An injection molding method for a precision metal-rubber composite product mold, using the precision metal-rubber composite product mold according to any one of claims 1-5, characterized in that, Includes the following steps: Step 1: Place the fluffy magnetic stainless steel wire (2) on the electromagnetic feeder (1) by clamping mechanism or manually. Operate the first electromagnet (3) to magnetically attract the fluffy magnetic stainless steel wire (2). The electromagnetic feeder (1) rises under the push of the lifting mechanism and sends the fluffy magnetic stainless steel wire (2) into the punching hole (7). The fluffy magnetic stainless steel wire (2) is attracted after contacting the second electromagnet (8) energized at the bottom of the punching rod (5). At this time, the first electromagnet (3) stops energizing, so that the fluffy magnetic stainless steel wire (2) changes its adsorption state and enters the punching mechanism (4). Step 2: The stamping mechanism (4) disengages from the electromagnetic feeding seat (1) under the drive of the translation device and instead engages with the injection molding mold (10). The stamping rod (5) and the limiting sleeve (6) enter the injection chamber (11) simultaneously under the drive of the lifting mechanism. As the stamping rod (5) continues to descend, the fluffy magnetic stainless steel wire (2) is compressed in the injection chamber (11) under the pressure of the stamping rod (5) and forms an over-compressed state. The over-compressed magnetic stainless steel wire (2) extends during the retraction of the stamping rod (5). During the extension of the magnetic stainless steel wire (2), rubber injection liquid is pushed into the injection chamber (11) through the first injection groove (12). The injection rubber deeply fills the gap formed by the accumulation of the magnetic stainless steel wire (2). During this process, the second electromagnet (8) remains in an energized adsorption state. Step 3: During the injection process in the first injection tank (12), the retraction of the stamping rod (5) and the limiting sleeve (6) drives the magnetic stainless steel wire (2) to retract synchronously. When the magnetic stainless steel wire (2) rises and leaves the injection chamber (11) at the preset height, the second electromagnet (8) stops adsorbing the magnetic stainless steel wire (2). Under the action of the rubber injection agent's adhesive force, the magnetic stainless steel wire (2) stops rising. At this time, the second injection tank (13) pumps rubber injection agent above the magnetic stainless steel wire (2) to fill and compensate for the negative pressure space above, until the entire magnetic stainless steel wire (2) is completely wrapped and filled by the injection rubber. Step 4: After the magnetic stainless steel wire (2) is filled and cooled, the second electromagnet (8) is restarted. The composite metal rubber is pulled out of the injection chamber (11) by the adsorption force generated by the second electromagnet (8), thus completing the production process of the composite metal rubber. The subsequent processing can repeat the above steps.

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