Self-cutting flash rubber ring vulcanization mold

Abstract

The utility model relates to rubber product processing technical field especially relates to a kind of self-cutting flash rubber ring vulcanization mould, comprising: upper die assembly, including upper plate, fixed in the upper surface of upper plate upper guide pillar, and the first cylinder of driving upper plate lifting;Middle plate, located below upper plate, is equipped with the cavity passing through its upper and lower surfaces, the inner diameter of cavity is matched with the outer diameter of the rubber ring to be shaped;Lower die assembly, including lower plate, the second cylinder and third cylinder being arranged in the inside of lower plate, the lower guide pillar being driven lifting by second cylinder, and hollow column being driven lifting by third cylinder;Trimming mechanism, including the fourth cylinder being installed in the side of middle plate and the blade being fixedly connected in the end of fourth cylinder piston rod, the blade edge is flush with the upper surface of middle plate in vulcanization combined mould state;Wherein: the inner diameter of hollow column and the outer diameter of lower guide pillar clearance sliding fit, the outer diameter of hollow column and the inner diameter of cavity clearance sliding fit.

Description

Technical Field

[0001] This utility model relates to the field of rubber product processing technology, and in particular to a vulcanizing mold for self-removing flash rubber rings. Background Technology

[0002] Flash is a common problem during the vulcanization process of rubber rings. Traditional molds require an additional trimming process after vulcanization, which not only increases production costs but may also lead to unstable product quality due to manual operation.

[0003] In existing technologies, some molds attempt to integrate edge trimming functions, but there are problems such as complex structure, poor edge trimming effect, and difficulty in cleaning flash. For example, the edge trimming mechanism of some molds cannot accurately remove flash, resulting in product size deviation; other molds leave flash residue after trimming, which requires secondary processing. Therefore, it is of great significance to develop a vulcanizing mold that is efficient, accurate and can automatically clean flash. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a vulcanizing mold for self-removing flash rubber rings.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A self-removing flash rubber ring vulcanizing mold, characterized in that it comprises:

[0007] The upper mold assembly includes an upper plate, an upper guide post fixed to the lower surface of the upper plate, and a first cylinder for driving the upper plate to rise and fall;

[0008] The middle plate, located below the upper plate, has a cavity that runs through its upper and lower surfaces. The inner diameter of the cavity matches the outer diameter of the rubber ring to be formed.

[0009] The lower mold assembly includes a lower plate, a second cylinder and a third cylinder disposed inside the lower plate, a lower guide column driven to rise and fall by the second cylinder, and a hollow column driven to rise and fall by the third cylinder.

[0010] The trimming mechanism includes a fourth cylinder mounted on the side of the middle plate and a blade fixedly connected to the end of the piston rod of the fourth cylinder. The cutting edge of the blade is flush with the upper surface of the middle plate in the vulcanized mold-closed state.

[0011] in:

[0012] The inner diameter of the hollow column is in sliding fit with the outer diameter of the lower guide column, and the outer diameter of the hollow column is in sliding fit with the inner diameter of the cavity.

[0013] The top surface of the lower guide post is flush with the top surface of the hollow post, together forming the vulcanization molding surface;

[0014] The fourth cylinder drives the blade to move horizontally to remove the flash around the vulcanized rubber ring.

[0015] When the third cylinder drives the hollow column to rise, it can push the vulcanized rubber ring out of the cavity.

[0016] Preferably, the blade is fixed to the piston rod end of the fourth cylinder by a detachable pressure plate, and a waste discharge port penetrating the middle plate is provided below the end point of the blade's movement trajectory.

[0017] Preferably, guide posts are fixedly provided at the four corners of the middle plate, and guide holes that fit with the guide posts are provided at corresponding positions on the upper and lower plates.

[0018] Preferably, the fourth cylinder is symmetrically arranged on both sides of the middle plate, and the piston rod of the fourth cylinder on the same side is connected to the blade through a linkage plate.

[0019] Preferably, it also includes a PLC controller, which is electrically connected to the first cylinder, the second cylinder, the third cylinder and the fourth cylinder; a position sensor is provided on the side of the middle plate to detect the blade reset signal and trigger the third cylinder to eject.

[0020] Preferably, a heating tube is embedded inside the lower plate, and the hollow column and the lower guide column are made of thermally conductive copper alloy.

[0021] Preferably, the heating tubes embedded inside the lower plate are arranged in a concentric ring shape, and the area covered by the heating tubes coincides with the projection area of ​​the hollow column and the lower guide column.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] Compared with existing technologies, this mold integrates vulcanization and trimming functions, significantly reducing process conversion steps, greatly shortening the production cycle, and effectively improving production efficiency. Through precise design, the mold cavity inner diameter matches the outer diameter of the rubber ring to be formed. Simultaneously, the top surface of the lower guide post and the top surface of the hollow post together form the vulcanization molding surface. Combined with the precise guidance of the guide post and guide hole, this ensures the rubber ring achieves extremely high dimensional accuracy during vulcanization. The trimming mechanism is ingeniously designed; the blade edge is flush with the upper surface of the middle plate when the mold is closed. Driven horizontally by the fourth cylinder, it can precisely remove flash, completely avoiding product dimensional deviations caused by flash residue and significantly improving product qualification rate. Furthermore, the retraction of the fourth cylinder enables uniform discharge of the rubber ring, further optimizing the production process and improving overall production efficiency. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the self-cutting flash rubber ring vulcanizing mold proposed in this utility model;

[0025] Figure 2 This is a top view of the middle plate in the vulcanizing mold for the self-cutting flash rubber ring proposed in this utility model;

[0026] Figure 3 This is a first-state structural diagram of the self-cutting flash rubber ring vulcanizing mold proposed in this utility model;

[0027] Figure 4 This is a structural diagram of the second state of the self-cutting flash rubber ring vulcanizing mold proposed in this utility model;

[0028] Figure 5 This is a top view of the blade in the vulcanizing mold for the self-removing flash rubber ring proposed in this utility model.

[0029] In the diagram: 10-upper plate, 101-first cylinder, 102-upper guide post, 20-middle plate, 201-cavity, 202-waste discharge port, 203-guide post, 30-lower plate, 301-second cylinder, 302-lower guide post, 303-third cylinder, 304-hollow column, 305-heating tube, 40-blade, 401-fourth cylinder, 50-guide hole. Detailed Implementation

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

[0031] like Figures 1-5 As shown, this embodiment provides a vulcanizing mold for self-removing flash rubber rings, comprising:

[0032] The upper mold assembly includes an upper plate 10, an upper guide post 102 fixed to the lower surface of the upper plate 10, and a first cylinder 101 for driving the upper plate 10 to rise and fall.

[0033] The middle plate 20 is located below the upper plate 10 and has a cavity 201 that runs through its upper and lower surfaces. The inner diameter of the cavity 201 matches the outer diameter of the rubber ring to be formed.

[0034] The lower mold assembly includes a lower plate 30, a second cylinder 301 and a third cylinder 303 disposed inside the lower plate 30, a lower guide column 302 driven to rise and fall by the second cylinder 301, and a hollow column 304 driven to rise and fall by the third cylinder 303.

[0035] The trimming mechanism includes a fourth cylinder 401 installed on the side of the middle plate 20 and a blade 40 fixedly connected to the end of the piston rod of the fourth cylinder 401. The cutting edge of the blade 40 is flush with the upper surface of the middle plate 20 in the vulcanized mold-closing state.

[0036] in:

[0037] The inner diameter of the hollow column 304 is in sliding fit with the outer diameter of the lower guide column 302, and the outer diameter of the hollow column 304 is in sliding fit with the inner diameter of the cavity 201.

[0038] The top surface of the lower guide post 302 is flush with the top surface of the hollow post 304, together forming the vulcanization molding surface;

[0039] The fourth cylinder 401 drives the blade 40 to move horizontally to remove the flash around the vulcanized rubber ring.

[0040] When the third cylinder 303 drives the hollow column 304 to rise, it can push the vulcanized rubber ring out of the cavity 201.

[0041] Overall, the upper mold assembly includes an upper plate 10, an upper guide post 102 fixed to the lower surface of the upper plate 10, and a first cylinder 101 for driving the upper plate 10 to rise and fall; the middle plate 20, located below the upper plate 10, has a cavity 201 that runs through its upper and lower surfaces, the inner diameter of the cavity 201 matching the outer diameter of the rubber ring to be molded; the lower mold assembly includes a lower plate 30, a second cylinder 301 and a third cylinder 303 disposed inside the lower plate 30, a lower guide post 302 driven to rise and fall by the second cylinder 301, and a hollow post 304 driven to rise and fall by the third cylinder 303; the trimming mechanism includes a fourth cylinder 401 installed on the side of the middle plate 20 and a blade 40 fixedly connected to the end of the piston rod of the fourth cylinder 401, the cutting edge of the blade 40 being flush with the upper surface of the middle plate 20 in the vulcanized mold-closed state. The hollow column 304 has a sliding fit with the outer diameter of the lower guide column 302, and the outer diameter of the hollow column 304 has a sliding fit with the inner diameter of the cavity 201. The top surface of the lower guide column 302 is flush with the top surface of the hollow column 304, forming a vulcanization molding surface. After vulcanization molding is completed, the first cylinder 101 drives the upper guide column 102 to rise and disengage from the cavity 201 through the upper plate 10, while the second cylinder 301 drives the lower guide column 302 to rise and enter the cavity 201, until the upper guide column 102 completely disengages from the cavity 201 and the lower guide column 302 completely enters the cavity 201. The fourth cylinder 401 drives the blade 40 to move horizontally to remove the flash on the outer periphery of the vulcanized rubber ring. When the third cylinder 303 drives the hollow column 304 to rise, it can push the vulcanized rubber ring out of the cavity 201.

[0042] like Figures 3-4As shown, in this embodiment, the blade 40 is fixed to the piston rod end of the fourth cylinder 401 by a detachable pressure plate, and a waste discharge port 202 penetrating the middle plate 20 is provided below the end point of the blade 40's movement trajectory.

[0043] Specifically, the blade 40 is fixed to the piston rod end of the fourth cylinder 401 by a detachable pressure plate, and a waste discharge port 202 penetrating the middle plate 20 is provided below the end point of the blade 40's movement trajectory. This design makes the blade 40 easy to replace and maintain, and the removed flash can be discharged from the mold in a timely manner through the waste discharge port 202, avoiding flash accumulation that affects subsequent production. When the blade 40 is worn or damaged, it can be quickly replaced simply by loosening the detachable pressure plate, greatly improving production efficiency. The waste discharge port 202 ensures the automation of flash cleaning, reducing manual intervention.

[0044] like Figures 2-4 As shown, in this embodiment, guide posts 203 are fixedly provided at the four corners of the middle plate 20, and guide holes 50 that are clearance-fitted with the guide posts 203 are provided at corresponding positions of the upper plate 10 and the lower plate 30.

[0045] By further optimizing the mold's guiding structure, guide pillars 203 are fixedly installed at the four corners of the middle plate 20, and guide holes 50 with clearance fits are provided at corresponding positions on the upper plate 10 and lower plate 30. The cooperation between the guide pillars 203 and the guide holes 50 ensures the precise positioning of the upper and lower mold components during the lifting process, improving mold closing accuracy. During the mold opening and closing process, the guide pillars 203 slide within the guide holes 50, effectively preventing mold offset and shaking, thereby ensuring the vulcanization quality and dimensional accuracy of the rubber ring.

[0046] like Figure 5 As shown, in this embodiment, the fourth cylinder 401 is symmetrically arranged on both sides of the middle plate 20, and the piston rod of the fourth cylinder 401 on the same side is connected to the blade 40 through the linkage plate.

[0047] Specifically, the fourth cylinder 401 is symmetrically arranged on both sides of the middle plate 20, and the piston rod of the fourth cylinder 401 on the same side is connected to the blade 40 through the linkage plate. This symmetrical arrangement and linkage design makes the blade 40 evenly stressed during the cutting process, which can more accurately remove the flash. The fourth cylinders 401 on both sides move synchronously, and drive the blade 40 to move towards the rubber ring at the same time through the linkage plate, ensuring the consistency and stability of flash removal. Compared with the single-sided driven cutting mechanism, the cutting effect of this embodiment is better and there is less flash residue. After the flash is removed, after the rubber ring is lifted by the hollow column 304, it can be retracted by the fourth cylinder 401. Driven by the linkage plate, the rubber ring is uniformly discharged, which improves the processing efficiency of the rubber ring.

[0048] like Figures 1-4 As shown, in this embodiment, a PLC controller is also included. The PLC controller is electrically connected to the first cylinder 101, the second cylinder 301, the third cylinder 303 and the fourth cylinder 401. A position sensor is provided on the side of the middle plate 20 to detect the reset signal of the blade 40 and trigger the ejection action of the third cylinder 303.

[0049] Specifically, the mold also includes a PLC controller, which is electrically connected to the first cylinder 101, the second cylinder 301, the third cylinder 303, and the fourth cylinder 401. A position sensor is provided on the side of the middle plate 20 to detect the reset signal of the blade 40 and trigger the ejection action of the third cylinder 303. Through the precise control of the PLC controller, the vulcanization, trimming, and ejection actions of the mold are automated. The position sensor ensures the coordinated execution of the trimming and ejection actions. When the blade 40 completes the trimming and returns to the reset position, the position sensor detects the signal and transmits it to the PLC controller. The PLC controller then triggers the action of the third cylinder 303 to eject the vulcanized rubber ring from the cavity 201. This automated control not only improves production efficiency but also reduces the impact of human factors on product quality.

[0050] like Figures 3-4 As shown, in this embodiment, a heating tube 305 is embedded inside the lower plate 30, and the hollow column 304 and the lower guide column 302 are made of thermally conductive copper alloy.

[0051] Specifically, the lower plate 30 has a heating tube 305 embedded inside, and the hollow column 304 and the lower guide column 302 are made of thermally conductive copper alloy. The heating tube 305 provides the necessary vulcanization temperature for the mold, while the hollow column 304 and the lower guide column 302 made of thermally conductive copper alloy can quickly transfer heat to ensure that the rubber ring is heated evenly during the vulcanization process.

[0052] like Figures 3-4 As shown, in this embodiment, the heating tubes 305 embedded inside the lower plate 30 are arranged in a concentric ring shape, and the area covered by the heating tubes 305 coincides with the projection area of ​​the hollow column 304 and the lower guide column 302.

[0053] By arranging the heating tubes 305 embedded inside the lower plate 30 in a concentric ring shape, and ensuring that the area covered by the heating tubes 305 coincides with the projection area of ​​the hollow column 304 and the lower guide column 302, this distribution method allows heat to be evenly transferred to the vulcanization molding surface, avoiding the problem of excessively high or low local temperatures, and further improving the vulcanization quality of the rubber ring.

[0054] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0055] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0056] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A vulcanizing mold for self-removing flash rubber rings, characterized in that, include: The upper mold assembly includes an upper plate (10), an upper guide post (102) fixed to the lower surface of the upper plate (10), and a first cylinder (101) for driving the upper plate (10) to rise and fall; The middle plate (20) is located below the upper plate (10) and has a cavity (201) that runs through its upper and lower surfaces. The inner diameter of the cavity (201) matches the outer diameter of the rubber ring to be formed. The lower mold assembly includes a lower plate (30), a second cylinder (301) and a third cylinder (303) disposed inside the lower plate (30), a lower guide column (302) driven to rise and fall by the second cylinder (301), and a hollow column (304) driven to rise and fall by the third cylinder (303). The trimming mechanism includes a fourth cylinder (401) installed on the side of the middle plate (20) and a blade (40) fixedly connected to the end of the piston rod of the fourth cylinder (401). The cutting edge of the blade (40) is flush with the upper surface of the middle plate (20) in the vulcanized mold-closing state. in: The inner diameter of the hollow column (304) is in sliding fit with the outer diameter of the lower guide column (302), and the outer diameter of the hollow column (304) is in sliding fit with the inner diameter of the cavity (201). The top surface of the lower guide post (302) is flush with the top surface of the hollow post (304), together forming the vulcanization molding surface; The fourth cylinder (401) drives the blade (40) to move horizontally to remove the flash around the vulcanized rubber ring; When the third cylinder (303) drives the hollow column (304) to rise, it can push the vulcanized rubber ring out of the cavity (201).

2. The self-removing flash rubber ring vulcanizing mold according to claim 1, characterized in that, The blade (40) is fixed to the piston rod end of the fourth cylinder (401) by a detachable pressure plate, and a waste discharge port (202) penetrating the middle plate (20) is provided below the end point of the blade (40) movement trajectory.

3. The vulcanizing mold for self-removing flash rubber rings according to claim 1, characterized in that, The middle plate (20) is fixedly provided with guide posts (203) at the four corners, and the upper plate (10) and lower plate (30) are provided with guide holes (50) that are clearance-fitted with the guide posts (203) at corresponding positions.

4. The vulcanizing mold for self-removing flash rubber rings according to claim 1, characterized in that, The fourth cylinder (401) is symmetrically arranged on both sides of the middle plate (20), and the piston rod of the fourth cylinder (401) on the same side is connected to the blade (40) through the linkage plate.

5. The vulcanizing mold for self-removing flash rubber rings according to claim 1, characterized in that, It also includes a PLC controller, which is electrically connected to the first cylinder (101), the second cylinder (301), the third cylinder (303) and the fourth cylinder (401); a position sensor is provided on the side of the middle plate (20) to detect the reset signal of the blade (40) and trigger the ejection action of the third cylinder (303).

6. The vulcanizing mold for self-removing flash rubber rings according to claim 1, characterized in that, The lower plate (30) is embedded with a heating tube (305), and the hollow column (304) and the lower guide column (302) are made of thermally conductive copper alloy.

7. The vulcanizing mold for self-removing flash rubber rings according to claim 6, characterized in that, The heating tubes (305) embedded inside the lower plate (30) are arranged in a concentric ring shape, and the area covered by the heating tubes (305) coincides with the projection area of ​​the hollow column (304) and the lower guide column (302).

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