Production die and production equipment for composite extrusion sealing rubber strip with steel wire

Abstract

The utility model discloses a production die and production equipment for a strip steel wire composite extrusion sealing rubber strip. The production die comprises a die body; the first glue injection runner is arranged in the mold body; the steel wire penetrates through the first glue injection runner; the second glue injection runner is arranged in the glue injection body; and the outlet of the second glue injection runner is communicated with the outlet of the first glue injection runner. According to the sealing rubber strip, the steel wire penetrates through the first rubber injection runner, the first rubber injection runner is internally provided with the rubber body for circulation, and when rubber injection is conducted on the first rubber injection runner, the rubber body wraps the steel wire and is compounded with the rubber body in the second rubber injection runner, so that the sealing rubber strip with the steel wire compositely extruded is formed; the composite extrusion process of the steel wire and the colloid is realized, a sealing rubber strip product with good wear resistance and high strength is produced, and the strength and wear resistance of the sealing rubber strip are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing strip production, in particular to a production die and production equipment for a composite extruded sealing strip with steel wire. Background Art

[0002] Sealant strips are currently widely used, with increasing demand in construction, communications, electronic equipment, automotive, and other fields. Screw extrusion and plunger extrusion are currently the most commonly used methods. However, these conventional sealant strips are typically extruded from a single colloid, or a composite of two different colloids, and cannot meet the high-strength, tensile, tear, and abrasion resistance requirements specific to the construction, automotive, and shipbuilding industries.

[0003] Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0004] The technical problem to be solved by the present invention is that, in view of the above-mentioned defects of the prior art, a production mold and production equipment for composite extruded sealing strips with steel wire are provided, aiming to improve the strength and wear resistance of the sealing strips.

[0005] The technical solutions adopted by the present invention to solve the technical problems are as follows:

[0006] A production die for composite extruded sealing strips with steel wire, comprising:

[0007] mold body;

[0008] A first glue injection channel is provided in the mold body;

[0009] a steel wire passing through the first glue injection channel;

[0010] The second glue injection flow channel is arranged in the mold body; the outlet of the second glue injection flow channel is connected with the outlet of the first glue injection flow channel.

[0011] The mold for producing composite extruded sealing strips with steel wire, wherein the first glue injection channel is used to accommodate solid glue, and the second glue injection channel is used to accommodate solid glue or liquid glue.

[0012] In the production mold for composite extruded sealing strips with steel wire, the first glue injection channel is extended in the horizontal direction and passes through the mold body.

[0013] The production mold for the steel wire composite extruded sealing strip further comprises:

[0014] A groove is provided on the mold body; the groove is located at the entrance of the first glue injection channel, and the bottom of the groove is connected to the first glue injection channel; the width of the groove is greater than the width of the first glue injection channel.

[0015] The production mold for composite extruded sealing strips with steel wire, wherein the groove is an arc-shaped groove.

[0016] The mold for producing composite extruded sealing strips with steel wire, wherein the second glue injection channel is located above the first glue injection channel, and the inlet and outlet of the second glue injection channel are staggered in the horizontal direction.

[0017] The production mold for composite extruded sealing strip with steel wire, wherein the second injection flow channel includes:

[0018] vertical segment;

[0019] a horizontal section, located below the vertical section and connected to the outlet of the vertical section;

[0020] The inclined section is located below the horizontal section and is communicated with the outlet of the horizontal section and the outlet of the first glue injection channel respectively.

[0021] The production mold for composite extruded sealing strip with steel wire, wherein the mold body comprises:

[0022] a first module; the inclined section is located in the first module;

[0023] A second module is provided on one side of the first module and is coaxially arranged with the first module; the vertical section and the horizontal section are both provided in the second module;

[0024] The third module is arranged on a side of the second module away from the first module and is coaxially arranged with the second module; the first injection flow channel extends along the first module, the second module and the third module in sequence.

[0025] A production device for composite extruded sealing strips with steel wires, comprising the production die for composite extruded sealing strips with steel wires as described above, and further comprising:

[0026] A die head; a mounting position is provided in the die head, and the mold body is detachably assembled in the mounting position;

[0027] a first extruder, used for injecting glue into the first glue injection channel;

[0028] The second extruder is used for injecting glue into the second glue injection channel.

[0029] The production equipment further comprises:

[0030] At least one positioning post, disposed on the mold body;

[0031] A positioning groove is provided in the installation position, and the positioning groove corresponds to the positioning column one by one and cooperates with each other.

[0032] Beneficial effect: The steel wire passes through the first glue injection channel, and the first glue injection channel also allows colloid to flow. When the first glue injection channel is injected with glue, the colloid will wrap the steel wire and then compound with the colloid in the second glue injection channel to form a sealing strip with steel wire composite extrusion, realizing the composite extrusion process of steel wire and colloid, producing a sealing strip product with good wear resistance and high strength, and improving the strength and wear resistance of the sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic diagram of the internal structure of the mold for producing the composite extruded sealing strip with steel wire described in this application;

[0034] Figure 2 This is a first view of the external structure of the mold for producing the composite extruded sealing strip with steel wire described in this application;

[0035] Figure 3 This is a second view of the external structure of the mold for producing the composite extruded sealing strip with steel wire described in this application;

[0036] Figure 4 It is a structural schematic diagram of the production equipment described in this application. DETAILED DESCRIPTION

[0037] The following describes the embodiments of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are intended solely to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0038] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. Therefore, the drawings only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0039] The present application provides a production die for composite extruded sealing strips with steel wire, such as Figure 1、 Figure 2 and Figure 3 As shown, the production mold for the composite extruded sealing strip with steel wire includes a mold body 100, a first glue injection channel 1, a steel wire 3 and a second glue injection channel 2; the first glue injection channel 1 is arranged in the mold body 100, the steel wire 3 passes through the first glue injection channel 1, the second glue injection channel 2 is arranged on the glue injection body, and the outlet of the second glue injection channel 2 is connected to the outlet of the first glue injection channel 1.

[0040] Specifically, the mold body 100 is configured to cooperate with the die head 5 of the production equipment, so that when the extruder and die head 5 are assembled and the colloid is extruded, the colloid can enter the corresponding injection channel. The first injection channel 1 and the second injection channel 2 are configured to allow the colloid to circulate; and the outlet of the first injection channel 1 and the outlet of the second injection channel 2 are connected, so that the two streams of colloid flow through the first injection channel 1 and the second injection channel 2 respectively and then combine to form the desired sealing strip.

[0041] The steel wire 3 passes through the first glue injection channel 1, and the first glue injection channel 1 also allows colloid to circulate. When the first glue injection channel 1 is injected with glue, the colloid will wrap the steel wire 3 and then compound with the colloid in the second glue injection channel 2 to form a sealing strip with steel wire composite extrusion, realizing the composite extrusion process of the steel wire 3 and the colloid (such as silicone), and producing a sealing strip product with good wear resistance and high strength.

[0042] It can be seen that in this application, glue is injected through two glue injection channels, and the steel wire 3 passes through the first glue injection channel 1, so that the composite extruded rubber strip obtained by injection molding contains the steel wire 3, forming a composite extruded sealing rubber strip with steel wire, which improves the strength and wear resistance of the sealing rubber strip.

[0043] The first glue injection channel 1 is used to accommodate solid glue, and the second glue injection channel 2 is used to accommodate solid glue or liquid glue.

[0044] In one embodiment of the present application, the first glue injection channel 1 is used to accommodate solid glue, and the second glue injection channel 2 is used to accommodate solid glue. When the first glue injection channel 1 and the second glue injection channel 2 are both injected with the same colloid, the steel wire composite extrusion sealing strip production mold can achieve the composite extrusion of the steel wire 3 and a single solid silicone gel; when the first glue injection channel 1 and the second glue injection channel 2 are respectively injected with different colloids, the steel wire composite extrusion sealing strip production mold can achieve the composite extrusion of the steel wire 3 and two solid silicone gels, meeting the production design and production needs of various products with special requirements.

[0045] In another embodiment of the present application, the first glue injection channel 1 is used to accommodate solid glue, and the second glue injection channel 2 is used to accommodate liquid glue. The steel wire composite extrusion sealing strip production mold can realize the composite extrusion of the steel wire 3 and solid pure silicone, as well as liquid conductive glue.

[0046] In one embodiment of the present application, the first injection channel 1 extends in a horizontal direction and passes through the mold body 100 .

[0047] Specifically, since the first glue injection channel 1 is used for the circulation of solid glue, and the viscosity of solid glue is high and the fluidity is relatively poor, during the injection molding or extrusion process, the solid glue is more dependent on high-pressure extrusion to flow in the mold; therefore, the horizontally arranged first glue injection channel 1 is more suitable for the injection molding of solid glue, which helps to push the solid glue forward along the first glue injection channel 1 through mechanical extrusion force, reducing dependence on the influence of gravity; and, horizontal flow reduces the downward tendency of the solid glue under the action of gravity, can more stably maintain the flow direction, and ensure uniform distribution of material during the injection molding process.

[0048] At the same time, since the steel wire 3 is introduced into the first glue injection channel 1, the introduction of the steel wire 3 is also easier to carry out in the horizontal channel, and the rigidity of the steel wire 3 and the fluidity of the solid glue can work together better to ensure that the steel wire 3 and the solid glue are stably compounded in the same direction; then, when the solid glue flows from the inlet to the outlet of the first glue injection channel 1, it can drive the steel wire 3 to be extruded together, and there is no need to arrange the conveying equipment of the steel wire 3 separately, thereby realizing the integrated composite extrusion of the steel wire 3 and the solid glue.

[0049] In one embodiment of the present application, the steel wire composite extruded sealing strip production mold also includes a groove 4, which is arranged on the mold body 100; the groove 4 is located at the entrance of the first glue injection channel 1, and the bottom of the groove 4 is connected to the first glue injection channel 1; the width of the groove 4 is greater than the width of the first glue injection channel 1.

[0050] Specifically, the flow of solid glue is more easily affected by the width of the flow channel. If it enters directly from a narrow flow channel, the flow of the glue material is easily affected by resistance, resulting in slow material flow and even stagnation in certain areas of the mold. The groove 4 is used to expand the inlet of the first glue injection flow channel 1. The groove 4 provides a larger cross-section at the inlet of the first glue injection flow channel 1, reducing the inlet resistance of the first glue injection flow channel 1, allowing the solid glue to first expand horizontally in the flow direction, reducing the sudden change in flow direction, and then evenly flow into the horizontally extended first glue injection flow channel 1 through the groove 4. This ensures that the solid glue is evenly distributed across the entire horizontal flow channel width, improving the molding quality of the product.

[0051] Compared with the solid glue directly entering the horizontal narrow channel, the transition design of connecting the groove 4 with the first glue injection channel 1 in this embodiment can greatly reduce the flow resistance of the solid glue and improve the flow efficiency of the entire channel system.

[0052] In one implementation of this embodiment, the groove 4 is an arc-shaped groove.

[0053] Specifically, the arc-shaped curve design of the arc-shaped groove allows the solid glue to undergo a smooth transition process before entering the first horizontal injection channel 1. The larger arc-shaped groove is equivalent to adding a transition area before the solid glue material enters the horizontal channel. By adjusting the change in the channel cross-section, the flow rate and pressure of the solid glue can be controlled. This allows the solid glue to maintain a stable flow rate when entering the horizontal channel, avoiding material accumulation or pressure fluctuations caused by excessive flow rate, thereby ensuring the smoothness of extrusion. This can reduce turbulence and uneven flow in the material flow path. In contrast, a cone or other shape may cause the material flow rate to change during the flow process, thereby affecting the molding quality of the product.

[0054] Moreover, the arc-shaped design of the groove 4 can gradually disperse the pressure before the material enters the first injection channel 1, preventing local pressure concentration; this balanced pressure distribution can reduce fluctuations during the extrusion process, making the solid glue in the channel flow more smoothly.

[0055] At the same time, the high viscosity of the solid glue itself makes it easy for material to be retained during flow, and the smooth curve of the arc-shaped design of the groove 4 allows the colloid to flow smoothly and is not easy to accumulate in corners or turning points, thereby reducing the retention and dead corner problems of the solid glue material in the first glue injection channel 1.

[0056] In one embodiment of the present application, the second glue injection channel 2 is located above the first glue injection channel 1, and the inlet and outlet of the second glue injection channel 2 are staggered in the horizontal direction.

[0057] Specifically, the inlet of the second injection channel 2 is higher than the outlet of the second injection channel 2, and the inlet of the second injection channel 2 is horizontally offset relative to the outlet of the second injection channel 2, so that the inlet of the second injection channel 2 and the outlet of the second injection channel 2 are not arranged along a vertical line. This can change the flow path of the colloid (especially liquid glue) and prevent it from flowing too quickly along a straight line. This design can force the colloid to change direction within the mold, disperse the flow rate, and fill the mold more evenly, preventing material from concentrating at the outlet.

[0058] When the second glue injection channel 2 is used to accommodate liquid glue, the flow path of the liquid glue in the second glue injection channel 2 is extended and the direction is changed through the staggered channel design. This flow characteristic can help expel air and make the liquid glue continuously change direction during the flow process, forcing bubbles to be discharged along with the fluid to avoid bubbles remaining inside the material.

[0059] At the same time, the staggered runner design helps to disperse the colloid pressure and prevent stress concentration at certain locations in the second injection runner 2; by changing the flow direction of the colloid, the pressure at the mold outlet can be effectively relieved, making the colloid flow in the second injection runner 2 smoother, extending the service life of the mold and improving product consistency.

[0060] In one embodiment of the present application, the second glue injection channel 2 includes a vertical section 21, a horizontal section 22 and an inclined section 23; the horizontal section 22 is located below the vertical section 21 and is connected to the outlet of the vertical section 21; the inclined section 23 is located below the horizontal section 22 and is respectively connected to the outlet of the horizontal section 22 and the outlet of the first glue injection channel 1.

[0061] Specifically, the vertical section 21, the horizontal section 22, and the inclined section 23 are arranged in sequence and interconnected, so that the second glue injection channel 2 forms a curved glue injection channel. The inlet of the vertical section 21 is arranged vertically upward, and the outlet of the inclined section 23 is arranged outward and downward relative to the inlet of the inclined section 23.

[0062] When the second injection channel 2 is used to accommodate liquid glue, the liquid silicone, due to its low viscosity and high fluidity, needs to maintain uniform flow and distribution when passing through the mold. If only a linear channel is used, the liquid glue may flow too quickly in the mold, causing the material to concentrate in certain areas, especially in the lower area of ​​the mold, resulting in uneven material distribution, which ultimately affects product quality. The vertical section 21 mainly uses gravity to make the liquid glue flow down quickly; the horizontal section 22 converts the liquid glue from a vertical flow state to a parallel flow state, helping it to spread evenly in the mold, so that the flow path of the liquid glue is extended, avoiding excessive accumulation of material at the bottom, and ensuring that all areas in the mold are evenly covered by the liquid glue; and the inclined section 23 further optimizes the flow path of the liquid glue. The inclination angle can control the flow speed and direction of the liquid glue, so that it is in an ideal flow state before combining with the solid glue injected into the first injection channel 1. This design can help the liquid glue better penetrate into the solid glue or the surrounding area of ​​the steel wire 3 structure, ensuring sufficient bonding between the two materials.

[0063] It can be seen that the second glue injection channel 2 can effectively slow down the flow rate of the liquid glue and gradually adjust the pressure through the combined design of the vertical section 21, the horizontal section 22 and the inclined section 23, so that the liquid glue is in a stable and uniform flow state before entering the solid glue flow channel, thereby improving the molding quality of the composite material and reducing the defects of the steel wire composite extruded sealing strip product.

[0064] In one embodiment of this application, Figure 1 As shown, the mold body 100 includes a first module 101, a second module 102 and a third module 103; the inclined section 23 is located in the first module 101; the second module 102 is arranged on one side of the first module 101 and is coaxially arranged with the first module 101; the vertical section 21 and the horizontal section 22 are both arranged in the second module 102; the third module 103 is arranged on the side of the second module 102 away from the first module 101 and is coaxially arranged with the second module 102; the first injection channel 1 is extended along the first module 101, the second module 102 and the third module 103 in sequence.

[0065] Specifically, since the second glue injection channel 2 is curved, it is difficult to process it directly on the mold body 100 and it is difficult to achieve the required curve angle. Therefore, the mold body 100 in this embodiment includes three modules. The inclined section 23 and a part of the horizontal channel of the first glue injection channel 1 are processed on the first module 101, the horizontal section 22, the inclined section 23, and a part of the horizontal channel of the first glue injection channel 1 are processed on the second module 102, and a part of the horizontal channel of the first glue injection channel 1 is processed on the third module 103, so that the first glue injection channel 1 and the second glue injection channel 2 are easier to process and the extension direction of the channel is more precise.

[0066] The present application also provides a production device for composite extruded sealing strips with steel wire, such as Figure 4 As shown, the production equipment includes the production mold of the steel wire composite extrusion sealing strip as described in any one of the above items, which also includes a head 5, a first extruder 6 and a second extruder 7. The head 5 is provided with a mounting position (such as Figure 4 As shown in FIG. 1A , the mold body 100 is detachably assembled in the installation position; the first extruder 6 is used to inject glue into the first glue injection channel 1 ; the second extruder 7 is used to inject glue into the second glue injection channel 2 .

[0067] Specifically, a first glue injection port and a second glue injection port are provided on the machine head 5, and the first glue injection port and the second glue injection port are both connected to the mounting position; when the mold body 100 is assembled in the mounting position, the first glue injection port is correspondingly connected to the inlet of the first glue injection channel 1, and the second glue injection port is connected to the inlet of the second glue injection channel 2.

[0068] The first extruder 6 and the second extruder 7 are both used to extrude corresponding colloid materials. The color and hardness of the colloids can be adjusted according to material requirements, and the colloids are then combined into the mold body 100 through a flow channel to achieve composite extrusion. The mold body 100 is assembled, the steel wire 3 is threaded, and the mold is installed on the independent die head 5. The corresponding extruder is arranged at the corresponding injection port, the extruder is started, and the pressure is adjusted to achieve the required thickness of the product. After vulcanization in a tunnel furnace, the product is formed at high temperature to produce the required steel wire composite extruded sealing strip with high strength and good wear resistance.

[0069] like Figure 2 and Figure 3 As shown, the production equipment also includes at least one positioning column 8, which is arranged on the mold body 100; a positioning groove is provided in the installation position, and the positioning groove corresponds to the positioning column 8 one by one and cooperates with each other, thereby positioning the mold body 100 and improving the stability of the mold body 100 when assembled in the installation position.

[0070] In summary, the present application provides a production mold and production equipment for composite extruded sealing strips with steel wire, the production mold for composite extruded sealing strips with steel wire comprises: a mold body; a first glue injection channel, arranged in the mold body; a steel wire, passing through the first glue injection channel; a second glue injection channel, arranged in the glue injection body; the outlet of the second glue injection channel is connected to the outlet of the first glue injection channel. The steel wire described in the present application passes through the first glue injection channel, and the first glue injection channel also allows colloid to circulate. When the first glue injection channel is injected with glue, the colloid will wrap the steel wire and compound with the colloid in the second glue injection channel to form a composite extruded sealing strip with steel wire, realizing the composite extrusion process of steel wire and colloid, producing a sealing strip product with good wear resistance and high strength, and improving the strength and wear resistance of the sealing strip.

[0071] It should be understood that the application of the present invention is not limited to the above examples. For ordinary technicians in this field, they can make improvements or changes based on the above description. All these improvements and changes should fall within the scope of protection of the claims attached to the present invention.

Claims

1. A production mold for composite extruded sealing strips with steel wire, characterized in that: It includes: mold body; A first glue injection channel is provided in the mold body; a steel wire passing through the first glue injection channel; The second glue injection flow channel is arranged in the mold body; the outlet of the second glue injection flow channel is connected with the outlet of the first glue injection flow channel.

2. The production mold for composite extruded sealing strips with steel wire according to claim 1, characterized in that: The first glue injection channel is used to accommodate solid glue, and the second glue injection channel is used to accommodate solid glue or liquid glue.

3. The production mold for composite extruded sealing strips with steel wire according to claim 1, characterized in that: The first glue injection channel extends in a horizontal direction and passes through the mold body.

4. The production mold for composite extruded sealing strips with steel wire according to claim 1, characterized in that: It also includes: A groove is provided on the mold body; the groove is located at the entrance of the first glue injection channel, and the bottom of the groove is connected to the first glue injection channel; the width of the groove is greater than the width of the first glue injection channel.

5. The production mold for composite extruded sealing strips with steel wire according to claim 4, characterized in that: The groove is an arc-shaped groove.

6. The production mold for composite extruded sealing strips with steel wire according to claim 1, characterized in that: The second glue injection flow channel is located above the first glue injection flow channel, and the inlet and outlet of the second glue injection flow channel are staggered in the horizontal direction.

7. The production mold for composite extruded sealing strips with steel wire according to claim 1, characterized in that: The second glue injection flow channel includes: vertical segment; a horizontal section, located below the vertical section and connected to the outlet of the vertical section; The inclined section is located below the horizontal section and is communicated with the outlet of the horizontal section and the outlet of the first glue injection channel respectively.

8. The production mold for composite extruded sealing strips with steel wire according to claim 7, characterized in that: The mold body comprises: a first module; the inclined section is located in the first module; A second module is provided on one side of the first module and is coaxially arranged with the first module; the vertical section and the horizontal section are both provided in the second module; The third module is arranged on a side of the second module away from the first module and is coaxially arranged with the second module; the first injection flow channel extends along the first module, the second module and the third module in sequence.

9. A production equipment for composite extruded sealing strips with steel wire, characterized in that: The method comprises the mold for producing a steel wire composite extruded sealing strip according to any one of claims 1 to 8, and further comprises: A die head; a mounting position is provided in the die head, and the mold body is detachably assembled in the mounting position; a first extruder, used for injecting glue into the first glue injection channel; The second extruder is used for injecting glue into the second glue injection channel.

10. The production equipment according to claim 9, characterized in that It also includes: At least one positioning post, disposed on the mold body; A positioning groove is provided in the installation position, and the positioning groove corresponds to the positioning column one by one and cooperates with each other.

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