Two-half mold convenient to exhaust and used for tire production

Abstract

The utility model belongs to the technical field of tire production molds, and provides a tire production two-half mold convenient to exhaust, which comprises an upper mold and a lower mold, the upper mold and the lower mold are both provided with a plurality of vent holes, and the opposite sides of the upper mold and the lower mold are both provided with blocking pieces for blocking the vent holes. Limiting assemblies used for limiting the position of the blocking piece are further arranged on the opposite sides of the upper mold and the lower mold, the upper mold and the lower mold are each provided with a plurality of clamping holes, the two limiting assemblies extend into the clamping holes, the reset sets move in the direction away from the bottom frame, the clamping blocks can be disengaged from the clamping holes, and the clamping blocks are clamped in the clamping holes. By arranging the baffle plates on the outer side wall of the bottom frame, the baffle plates arranged on the outer side wall of the bottom frame can be separated from the positions of the air outlet holes, the areas of the air outlet holes can be continuously increased, more gas is allowed to pass through within the same time, and therefore the exhaust rate is increased; the baffle plates are arranged, and when equipment is not used, the baffle plates block the air outlet holes, impurities can be effectively prevented from entering a mold, and the service life of the mold is prolonged. And the interior of the mold is kept clean.

Description

A two-part mold for easy venting in tire production Technical Field

[0001] This utility model relates to the field of tire production mold technology, specifically a two-part mold for tire production that facilitates venting. Background Technology

[0002] Existing tires are all vulcanized using tire molds. Tire molds include movable molds and two-part molds. Movable molds consist of tread rings, mold sleeves, upper and lower side plates, etc., while two-part molds consist of an upper mold and a lower mold. To facilitate tire demolding, movable molds are mainly used for molding tires with deeper treads, while two-part molds are mainly used for molding tires with shallower treads.

[0003] To prevent insufficient rubber on the surface or air bubbles inside the tire during vulcanization, the upper and lower mold sides of both halves of the mold are provided with several vent holes arranged in a circular array to communicate with the cavity, so that the inner cavity of the mold and the outside of the mold can be connected to the air vent. However, in actual use, the vent holes on the two halves of the mold are generally very small. During vulcanization, some gases are discharged slowly, which may cause insufficient rubber on the tire surface or air bubbles inside the tire, affecting the tire quality. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a two-part mold for tire production that facilitates venting. This solves the problem that the pores on the two-part mold are generally very small, and some gases are slowly released during vulcanization, which may cause insufficient rubber on the tire surface or air bubbles inside the tire, affecting tire quality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a two-part mold for tire production that facilitates venting, comprising an upper mold and a lower mold, wherein the upper mold and the lower mold are each provided with a plurality of vent holes, and the opposite sides of the upper mold and the lower mold are each provided with a blocking member for blocking the plurality of vent holes, and the opposite sides of the upper mold and the lower mold are also provided with a limiting component for limiting the position of the blocking member, and the upper mold and the lower mold are each provided with a plurality of engaging holes, and two of the limiting components extend into the engaging holes;

[0006] The limiting component includes a reset group and a locking rod. One side of the reset group extends into the interior of the blocking member. Sliding members are provided on the opposite side of the reset group near the blocking member. Both sliding members are slidably disposed inside the blocking member. One end of the locking rod is fixedly connected to one side of the reset group. The reset group is used to reset the position of the locking rod. The end of the locking rod away from the reset group passes through the blocking member, and the end of the locking rod near the blocking member extends into the locking hole.

[0007] The blocking component includes a base frame and multiple blocking plates. One side of each of the multiple blocking plates is fixedly connected to the outer wall of the base frame. The locking rod passes through one of the blocking plates, and one side of the reset assembly extends into the interior of the base frame.

[0008] Preferably, the reset assembly includes a rotating rod, a reset plate, and an elastic element. The two sliding elements are respectively disposed on opposite sides of the rotating rod. One end of the reset plate is fixedly connected to one end of the rotating rod. One end of the elastic element is fixedly connected to the side of the reset plate away from the rotating rod. The end of the elastic element away from the reset plate is fixedly connected to the side of the blocking plate.

[0009] Preferably, the sliding element is a sliding plate, one side of which is fixedly connected to one side of the rotating rod, and the sliding plate is movably disposed in a sliding groove provided on the inner side wall of the bottom frame.

[0010] Preferably, mold grooves are provided on the adjacent sides of both the upper mold and the lower mold.

[0011] Preferably, the elastic element is a spring, one end of which is fixedly connected to one side of the reset plate, and the end of the spring away from the reset plate is fixedly connected to one side of the blocking plate.

[0012] Preferably, the number of engaging holes on both the upper mold and the lower mold is seventy-two.

[0013] Compared with the prior art, this utility model provides a two-part mold for tire production that facilitates venting, and has the following beneficial effects:

[0014] By setting a locking rod, the reset assembly can be moved away from the bottom frame during use. During this process, the locking rod will gradually disengage from the locking hole. As the reset assembly continues to move, the locking block will disengage from the locking hole. At this point, the reset assembly can be rotated, which will drive the bottom frame to rotate. This will cause the multiple baffles on the outer wall of the bottom frame to disengage from the vent positions, thus continuously increasing the area of ​​the vents. This allows more gas to pass through in the same amount of time, thereby increasing the exhaust rate. Furthermore, by setting baffles, when the equipment is not in use, the baffles can block the vents, effectively preventing impurities from entering the mold and keeping the inside of the mold clean. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of the two-half mold for tire production that facilitates venting, provided by this utility model.

[0016] Figure 2 is a split view of the two halves of the tire production mold that facilitates venting provided by this utility model.

[0017] Figure 3 is an enlarged view of point A shown in Figure 2;

[0018] Figure 4 is a schematic diagram of the upper mold provided by this utility model;

[0019] Figure 5 is an exploded view of the limiting component and the blocking component provided by this utility model.

[0020] In the diagram: 1. Upper mold; 2. Lower mold; 3. Baffle plate; 4. Reset plate; 5. Rotating rod; 6. Air vent; 7. Engaging hole; 8. Spring; 9. Engaging rod; 10. Sliding plate; 11. Sliding groove; 12. Mold groove; 13. Base frame. Detailed Implementation

[0021] 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.

[0022] Please refer to Figures 1-5. In this embodiment: a two-part mold for tire production that facilitates venting includes an upper mold 1 and a lower mold 2. Both the upper mold 1 and the lower mold 2 are provided with multiple air vents 6. On opposite sides of the upper mold 1 and the lower mold 2, there are blocking members for blocking the multiple air vents 6. On opposite sides of the upper mold 1 and the lower mold 2, there are also limiting components for limiting the position of the blocking members. Both the upper mold 1 and the lower mold 2 are provided with multiple engaging holes 7. Two limiting components extend into the engaging holes 7.

[0023] The limiting assembly includes a reset group and a locking rod 9. One side of the reset group extends into the interior of the blocking member. Sliding members are provided on the opposite side of the reset group near the blocking member. Both sliding members are slidably disposed inside the blocking member. One end of the locking rod 9 is fixedly connected to one side of the reset group. The reset group is used to reset the position of the locking rod 9. The end of the locking rod 9 away from the reset group passes through the blocking member. The end of the locking rod 9 near the blocking member extends into the locking hole 7.

[0024] The blocking component includes a bottom frame 13 and multiple blocking plates 3. One side of each of the multiple blocking plates 3 is fixedly connected to the outer side wall of the bottom frame 13. The locking rod 9 passes through one of the blocking plates 3, and one side of the reset assembly extends into the interior of the bottom frame 13.

[0025] Specifically, by setting the locking rod 9, the reset assembly can be moved away from the bottom frame 13 during use. During this process, the locking rod 9 will gradually disengage from the locking hole 7. As the reset assembly moves continuously, the locking block will disengage from the locking hole 7. At this time, the reset assembly can be rotated, which will drive the bottom frame 13 to rotate. This will cause the multiple baffles 3 set on the outer wall of the bottom frame 13 to disengage from the vent 6, and the area of ​​the vent 6 will continuously increase, allowing more gas to pass through in the same amount of time, thereby increasing the exhaust rate. In addition, by setting the baffles 3, when the equipment is not in use, the baffles 3 can block the vents, effectively preventing impurities from entering the mold and keeping the inside of the mold clean.

[0026] The reset assembly includes a rotating rod 5, a reset plate 4, and an elastic element. Two sliding elements are respectively disposed on opposite sides of the rotating rod 5. One end of the reset plate 4 is fixedly connected to one end of the rotating rod 5. One end of the elastic element is fixedly connected to the side of the reset plate 4 away from the rotating rod 5. The end of the elastic element away from the reset plate 4 is fixedly connected to the side of the blocking plate 3. The sliding element is a sliding plate 10. One side of the sliding plate 10 is fixedly connected to one side of the rotating rod 5. The sliding plate 10 is movably disposed in the sliding groove 11 provided on the inner side wall of the bottom frame 13. The elastic element is a spring 8. One end of the spring 8 is fixedly connected to one side of the reset plate 4. The end of the spring 8 away from the reset plate 4 is fixedly connected to the side of the blocking plate 3.

[0027] The reset assembly is used as follows: when the rotating rod 5 is pulled away from the bottom frame 13, the movement of the rotating rod 5 will cause the sliding plate 10 to move inside the sliding groove 11. When the rod is pulled, it will cause the locking rod 9 to disengage from the locking hole 7. The movement of the rod will also stretch the spring 8 until the locking rod 9 is completely disengaged from the locking hole 7. At this time, the bottom frame 13 can be rotated. After rotating to the appropriate position, by releasing the rotating rod 5, the pushing force of the spring 8 will cause the locking rod 9 to re-enter the locking hole 7 at its corresponding position, thus completing the rotation and limiting of the bottom frame 13.

[0028] Both the upper mold 1 and the lower mold 2 have mold grooves 12 on their adjacent sides. The upper mold 1 and the lower mold 2 each have seventy-two locking holes 7, so that the angle of each deflection is 5°.

[0029] The working principle and usage process of this utility model are as follows: When in use, by pulling the rotating rod 5 away from the bottom frame 13, the movement of the rotating rod 5 will cause the sliding plate 10 to move inside the sliding groove 11. When the rod is pulled, it will cause the locking rod 9 to disengage from the locking hole 7. The movement of the rod will also stretch the spring 8 until the locking rod 9 is completely disengaged from the locking hole 7. At this point, the bottom frame 13 can be rotated. After rotating to the appropriate position, by releasing the rotating rod 5, the pushing force of the spring 8 will cause the locking rod 9 to re-enter the locking hole 7 at its corresponding position, completing the rotation and limiting of the bottom frame 13. This will cause the multiple baffles 3 set on the outer wall of the bottom frame 13 to disengage from the vent 6, and the area of ​​the vent 6 will continuously increase, allowing more gas to pass through in the same amount of time, thereby increasing the exhaust rate. In addition, by setting the baffles 3, when the equipment is not in use, the baffles 3 can block the vents, effectively preventing impurities from entering the mold and keeping the inside of the mold clean.

[0030] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A two-part mold for tire production that facilitates venting, characterized in that: The system includes an upper mold (1) and a lower mold (2). Both the upper mold (1) and the lower mold (2) are provided with multiple air vents (6). On opposite sides of the upper mold (1) and the lower mold (2) are blocking members for blocking the multiple air vents (6). On opposite sides of the upper mold (1) and the lower mold (2) are also limiting components for limiting the position of the blocking members. Both the upper mold (1) and the lower mold (2) are provided with multiple engaging holes (7). Two of the limiting components extend into the engaging holes (7). Each limiting component includes a reset assembly and an engaging rod (9). One side of the reset assembly extends into the interior of the blocking member. The reset assembly approaches the blocking member. Sliding members are provided on opposite sides of the stop member. Both sliding members are slidably disposed inside the stop member. One end of the locking rod (9) is fixedly connected to one side of the reset group. The reset group is used to reset the position of the locking rod (9). The end of the locking rod (9) away from the reset group passes through the stop member. The end of the locking rod (9) close to the stop member extends into the locking hole (7). The stop member includes a bottom frame (13) and multiple blocking plates (3). One side of each of the multiple blocking plates (3) is fixedly connected to the outer wall of the bottom frame (13). The locking rod (9) passes through one of the blocking plates (3). One side of the reset group extends into the interior of the bottom frame (13).

2. The two-part mold for tire production that facilitates venting, as described in claim 1, is characterized in that: The reset assembly includes a rotating rod (5), a reset plate (4), and an elastic element. The two sliding elements are respectively disposed on opposite sides of the rotating rod (5). One end of the reset plate (4) is fixedly connected to one end of the rotating rod (5). One end of the elastic element is fixedly connected to the side of the reset plate (4) away from the rotating rod (5). The end of the elastic element away from the reset plate (4) is fixedly connected to the side of the blocking plate (3).

3. A two-part mold for tire production that facilitates venting, as described in claim 2, characterized in that: The sliding component is a sliding plate (10), one side of the sliding plate (10) is fixedly connected to one side of the rotating rod (5), and the sliding plate (10) is movably disposed in the sliding groove (11) provided on the inner side wall of the bottom frame (13).

4. A two-part mold for tire production that facilitates venting, as described in claim 3, characterized in that: Both the upper mold (1) and the lower mold (2) have mold grooves (12) on their adjacent sides.

5. A two-part mold for tire production that facilitates venting, as described in claim 4, characterized in that: The elastic element is a spring (8), one end of which is fixedly connected to one side of the reset plate (4), and the end of the spring (8) away from the reset plate (4) is fixedly connected to one side of the blocking plate (3).

6. A two-part mold for tire production that facilitates venting, as described in claim 5, characterized in that: The number of engagement holes (7) on both the upper mold (1) and the lower mold (2) is seventy-two.

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