Inflating valve vulcanization forming device

Abstract

The utility model discloses an inflating valve vulcanization forming device, which relates to the technical field of inflating valve processing and comprises a base, and a lower-layer mold, a middle-layer mold and an upper-layer mold are arranged above the base and are sequentially arranged from bottom to top. According to the mold, the base is arranged, the lower-layer mold, the middle-layer mold and the upper-layer mold are sequentially arranged above the base, the mold bases which are arranged in a crossed mode are arranged above the lower-layer mold, the mold sleeves corresponding to the mold bases are arranged below the upper-layer mold, and the mold bases are matched with the mold sleeves to form the mold cavity for vulcanizing and forming the inflating valve; the inner space of the device is fully utilized through the mode that the multiple die bases are arranged in a crossed mode, the multiple fixing rings are arranged in the middle of the middle-layer die, the connecting base is arranged at the bottom end of the die sleeve, in the discharging process of the inflating valve, redundant materials can be pressed on the fixing rings through the connecting base, waste separation is completed, and the waste recycling efficiency is improved. And subsequent vulcanization processing of the inflating valve is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of valve nozzle processing, in particular to a valve nozzle vulcanization molding device. Background Art

[0002] Snap-on valves are widely used in tubeless tires. They are characterized by quick installation, good airtightness, and long service life. Compared with conventional inner tube rubber pad valves, the rubber part of this product has a complex structure and a long rubber covering area. During vulcanization, there are problems such as poor molding, residual rubber blockage in the inner hole, and insufficient rubber molding density.

[0003] Publication number CN219256150U describes a multi-cavity vulcanization mold for a snap-on valve. This mold belongs to the field of vulcanization molds and includes an upper mold plate and a lower mold plate. The upper mold plate is provided with a glue injection groove, and a plurality of first cavities are provided below the upper mold plate. Each of the first cavities is connected to the glue injection groove via a glue injection hole. The lower mold plate is provided with a plurality of second cavities, which correspond in number and position to the first cavities. The mold plate also includes a bottom plate and a rubber extrusion plate. The rubber extrusion plate is provided above the upper mold plate and can squeeze the rubber in the glue injection groove. The bottom plate is provided at the bottom of the lower mold plate. The bottom plate is provided with a guide connection hole, which is connected to the snap-on valve. A mold pin is provided in the first cavity, which can extend into the end hole of the snap-on valve. Through the above-mentioned structure, the utility model can achieve mass production and high-quality production of the rubber parts of snap-on valves.

[0004] The above technical solutions have some problems in practical application, such as the inability to remove and separate waste materials in a timely manner during product processing, and the inability to quickly demould the product after molding.

[0005] Therefore, it is necessary to invent a valve vulcanization molding device to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a valve vulcanization molding device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a valve vulcanization molding device, comprising a base, a lower mold, a middle mold and an upper mold are arranged above the base, and the lower mold, the middle mold and the upper mold are arranged in sequence from bottom to top, a plurality of mold bases are fixedly provided on the upper surface of the lower mold, and the plurality of mold bases are arranged crosswise, a mold core is fixedly provided in the middle of the upper surface of the mold base, and a feed port is provided through the middle of the mold core, a plurality of fixing rings are fixedly provided in the middle of the middle mold, and the plurality of fixing rings respectively correspond to the plurality of mold bases, a plurality of mold sleeves are fixedly provided on the lower surface of the upper mold, and the plurality of mold sleeves respectively correspond to the plurality of mold bases, a connecting seat is fixedly provided at the bottom end of the mold sleeve, an extrusion groove is provided at the bottom end of the connecting seat, a groove of an annular structure is provided on the upper surface of the mold base, a plurality of discharge grooves are provided around the outer wall of the fixing ring, a connecting groove is provided through the top of the mold sleeve, and a movable block is provided inside the connecting groove.

[0008] Preferably, the communicating groove is configured as a funnel-shaped structure, an air intake hood is fixedly provided on the top of the upper mold, and a spring is provided between the movable block and the air intake hood.

[0009] Preferably, an air intake groove is provided through the upper surface of the air intake hood, an air intake pipe is fixedly provided at the notch of the air intake groove, and the air intake pipe is provided as a bellows.

[0010] Preferably, an exhaust pipe is fixedly provided on one end of the upper surface of the air inlet hood, a solenoid valve is fixedly provided in the middle of the exhaust pipe, and a filter cover is fixedly provided on one end of the exhaust pipe.

[0011] Preferably, sliding rods are fixedly provided at the four corners of the upper surface of the base, sliding sleeves corresponding to the sliding rods are fixedly provided at the four corners of the outer walls of the lower mold, the middle mold and the upper mold, an upper seat is fixedly provided at the top end of the sliding rod, and a telescopic gas rod is provided between the upper seat and the upper mold.

[0012] Preferably, an extension seat is fixedly provided at the middle of both sides of the middle layer mold, and a spring is provided between the extension seat and the base.

[0013] Technical effects and advantages of this utility model:

[0014] 1. The utility model is provided with a base, and a lower mold, a middle mold and an upper mold are sequentially arranged above the base. A cross-arranged mold base is provided above the lower mold, and a mold sleeve corresponding to the mold base is provided below the upper mold. The mold base and the mold sleeve cooperate to form a mold cavity for vulcanization molding of the valve. The cross-arrangement of multiple mold bases fully utilizes the internal space of the device. By providing multiple fixing rings in the middle of the middle mold and providing a connecting seat at the bottom end of the mold sleeve, during the discharge process of the valve, excess material can be pressed against the fixing ring by the connecting seat, and waste material is separated, so as to facilitate the subsequent vulcanization processing of the valve.

[0015] 2. The utility model provides a connecting groove at the top of the mold sleeve, and a movable block is provided inside the connecting groove. During the vulcanization process of the valve nozzle, the mold core can push the movable block upward to facilitate the injection of gas used for vulcanization of the valve core into the mold cavity. After the valve nozzle is vulcanized and formed, the upper mold and the middle mold are separated. At this time, the movable block can seal the connecting groove to avoid pollution caused by leakage of vulcanized gas, thereby ensuring the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model.

[0018] Figure 3 For the utility model Figure 2 A magnified schematic diagram of the structure in the middle.

[0019] Figure 4 This is a schematic diagram of the structure of the lower mold, middle mold and upper mold of the utility model.

[0020] Figure 5 This is a schematic diagram of the lower mold and middle mold structure of the utility model.

[0021] Figure 6 This is a schematic diagram of the upper mold structure of the present utility model.

[0022] In the figure: 1. Base; 2. Lower mold; 3. Middle mold; 4. Upper mold; 5. Mold base; 6. Mold core; 7. Fixed ring; 8. Mold sleeve; 9. Connecting seat; 10. Extrusion trough; 11. Groove; 12. Discharge trough; 13. Connecting groove; 14. Movable block; 15. Air intake hood; 16. Air intake groove; 17. Air intake pipe; 18. Exhaust pipe; 19. Solenoid valve; 20. Filter cover; 21. Sliding rod; 22. Upper seat; 23. Telescopic gas rod; 24. Extension seat. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides Figure 1-6 The valve vulcanization molding device shown in the figure includes a base 1, and a lower mold 2, a middle mold 3 and an upper mold 4 are arranged above the base 1, and the lower mold 2, the middle mold 3 and the upper mold 4 are arranged in sequence from bottom to top. A plurality of mold bases 5 are fixedly provided on the upper surface of the lower mold 2, and the plurality of mold bases 5 are arranged crosswise. A mold core 6 is fixedly provided in the middle of the upper surface of the mold base 5, and a feed port is provided through the middle of the mold core 6. A plurality of fixing rings 7 are fixedly provided in the middle of the middle mold 3, and the plurality of fixing rings 7 respectively correspond to the plurality of mold bases 5. A plurality of mold sleeves 8 are fixedly provided on the lower surface of the upper mold 4, and the plurality of mold sleeves 8 respectively correspond to the plurality of mold bases 5. The mold sleeve 8 and the mold base 5 form a mold cavity for vulcanization molding of the product;

[0025] Specifically, a connecting seat 9 is fixedly provided at the bottom end of the mold sleeve 8, an extrusion groove 10 is provided at the bottom end of the connecting seat 9, an annular groove 11 is provided on the upper surface of the mold base 5, and a plurality of discharge grooves 12 are provided around the outer wall of the fixed ring 7. The extrusion groove 10, the discharge groove 12 and the groove 11 cooperate to realize the extrusion and collection of waste materials, and the setting of the discharge groove 12 can guide the waste materials to the top of the middle mold 3 to prevent the waste materials from filling the groove 11 and affecting the mold closing;

[0026] More specifically, a connecting groove 13 is formed through the top of the mold sleeve 8, and a movable block 14 is provided inside the connecting groove 13. The connecting groove 13 is configured as a funnel-shaped structure. The funnel-shaped structure allows the gap between the movable block 14 and the connecting groove 13 to pass gas more quickly after the movable block 14 is separated from the connecting groove 13.

[0027] In addition, an air intake hood 15 is fixedly provided at the top of the upper mold 4, a spring is provided between the movable block 14 and the air intake hood 15, an air intake groove 16 is provided through the upper surface of the air intake hood 15, an air intake pipe 17 is fixedly provided at the notch of the air intake groove 16, and the air intake pipe 17 is provided as a bellows, an exhaust pipe 18 is fixedly provided at one end of the upper surface of the air intake hood 15, a solenoid valve 19 is fixedly provided in the middle of the exhaust pipe 18, and a filter hood 20 is fixedly provided at one end of the exhaust pipe 18, and the filter hood 20 can filter the exhaust gas, so that the exhaust gas generated during the vulcanization process can stay in the air intake hood 15;

[0028] Moreover, sliding rods 21 are fixedly provided at the four corners of the upper surface of the base 1, and sliding sleeves corresponding to the sliding rods 21 are fixedly provided at the four corners of the outer walls of the lower mold 2, the middle mold 3 and the upper mold 4. An upper seat 22 is fixedly provided at the top of the sliding rod 21, and a telescopic gas rod 23 is provided between the upper seat 22 and the upper mold 4. The telescopic gas rod 23 is used to drive the movement of the upper mold 4;

[0029] At the same time, an extension seat 24 is fixedly provided in the middle of both sides of the middle mold 3, and a spring is provided between the extension seat 24 and the base 1. The provision of the spring facilitates the upward reset of the middle mold 3.

[0030] Working principle of this utility model:

[0031] When the device is in use, the upper mold 4 moves downward under the action of the telescopic gas rod 23, and the upper mold 4 squeezes the middle mold 3 downward, so that the upper mold 4, the middle mold 3 and the lower mold 2 are completed. At this time, the mold sleeve 8 is sleeved on the outside of the mold core 6 and forms a mold cavity for vulcanization molding of the valve nozzle with the mold base 5. In the process of closing the mold sleeve 8 and the mold base 5, the valve nozzle raw material can be squeezed into the mold cavity through the feed port in the middle of the mold core 6, and then, the movable block 14 at the top of the mold sleeve 8 squeezes the raw material so that the raw material fills the mold cavity, and the excess raw material is discharged through the extrusion groove 10 at the bottom of the connecting seat 9 and discharged through the discharge groove 12 Entering the groove 11, the excess waste is then pressed against the top of the fixed ring 7 by the connecting seat 9 to achieve the compaction of the waste. After the mold sleeve 8 and the mold base 5 are completed, the top of the mold core 6 pushes the movable block 14 upward. At this time, the movable block 14 blocks the feed port at the top of the mold core 6, and a gap is generated between the movable block 14 and the connecting groove 13. At this time, the gas used for vulcanization of the valve can enter the connecting groove 13 through the air inlet pipe 17 and the air inlet cover 15, and then enter the mold cavity to achieve the vulcanization treatment of the valve. The exhaust gas generated during the vulcanization process passes through the connecting groove 13 and stays in the air inlet cover 15.

[0032] After the valve is vulcanized and formed, the telescopic gas rod 23 drives the upper mold 4 to move upward. At this time, the movable block 14 is separated from the mold core 6. The movable block 14 blocks the connecting groove 13 under the action of the spring. At this time, the exhaust gas generated during the vulcanization process stays in the air intake cover 15. The exhaust gas can be discharged through the exhaust pipe 18 when the solenoid valve 19 is opened. The exhaust gas is filtered and cleaned by the filter cover 20 during the exhaust process.

[0033] After the upper mold 4 moves upward, the mold sleeve 8 is separated from the formed valve product, and the middle mold 3 moves upward under the action of the spring and the extension seat 24. Since the waste material is pressed against the fixing ring 7, the middle mold 3 can drive the solidified waste material to move during the upward movement, so that the waste material is separated from the valve product, so as to facilitate the subsequent unloading of the valve.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A valve vulcanization molding device, comprising a base (1), characterized in that: A lower mold (2), a middle mold (3) and an upper mold (4) are arranged above the base (1), and the lower mold (2), the middle mold (3) and the upper mold (4) are arranged in sequence from bottom to top. A plurality of mold bases (5) are fixedly arranged on the upper surface of the lower mold (2), and the plurality of mold bases (5) are arranged crosswise. A mold core (6) is fixedly arranged in the middle of the upper surface of the mold base (5), and a feed port is provided through the middle of the mold core (6). A plurality of fixing rings (7) are fixedly arranged in the middle of the middle mold (3), and the plurality of fixing rings (7) are respectively connected to the plurality of mold bases (5). Correspondingly, a plurality of die sleeves (8) are fixedly provided on the lower surface of the upper die (4), and the plurality of die sleeves (8) correspond to a plurality of die bases (5) respectively. A connecting seat (9) is fixedly provided on the bottom end of the die sleeve (8), and an extrusion groove (10) is provided at the bottom end of the connecting seat (9). A groove (11) of an annular structure is provided on the upper surface of the die base (5). A plurality of discharge grooves (12) are provided around the outer wall of the fixed ring (7). A connecting groove (13) is provided through the top end of the die sleeve (8), and a movable block (14) is provided inside the connecting groove (13).

2. A valve vulcanization molding device according to claim 1, characterized in that: The communicating groove (13) is configured as a funnel-shaped structure, an air intake hood (15) is fixedly provided at the top end of the upper mold (4), and a spring is provided between the movable block (14) and the air intake hood (15).

3. A valve vulcanization molding device according to claim 2, characterized in that: An air intake groove (16) is provided through the upper surface of the air intake cover (15), an air intake pipe (17) is fixedly provided at the notch of the air intake groove (16), and the air intake pipe (17) is provided as a corrugated pipe.

4. The valve vulcanization molding device according to claim 3, characterized in that: An exhaust pipe (18) is fixedly provided at one end of the upper surface of the air inlet cover (15), a solenoid valve (19) is fixedly provided at the middle of the exhaust pipe (18), and a filter cover (20) is fixedly provided at one end of the exhaust pipe (18).

5. The valve vulcanization molding device according to claim 4, characterized in that: Slide rods (21) are fixedly provided at the four corners of the upper surface of the base (1), and sliding sleeves corresponding to the slide rods (21) are fixedly provided at the four corners of the outer walls of the lower mold (2), the middle mold (3) and the upper mold (4). An upper seat (22) is fixedly provided at the top end of the slide rod (21), and a telescopic gas rod (23) is provided between the upper seat (22) and the upper mold (4).

6. The valve vulcanization molding device according to claim 5, characterized in that: Extension seats (24) are fixedly provided at the middle of both sides of the middle layer mold (3), and a spring is provided between the extension seat (24) and the base (1).

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