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CN-224210413-U - Injection mold for preventing flash

CN224210413UCN 224210413 UCN224210413 UCN 224210413UCN-224210413-U

Abstract

The utility model relates to the technical field of injection molds and discloses an anti-flash injection mold, which comprises a lower mold and an upper mold, wherein the upper mold is movably arranged above the lower mold, a first groove is formed in the lower mold, an air bag is fixedly arranged at the bottom of the inner side of the first groove, the side surface of the air bag is fixedly connected with the inner side of the first groove, and a second groove is formed in the lower mold. According to the utility model, the telescopic cylinder is started to drive the upper die to move downwards, so that the bottom of the upper die contacts with the air bag, when the bottom of the upper die contacts with the air bag, the air bag is compressed, and the high-temperature sealing air bag is deformed and closely attached to the joint of the lower die and the upper die.

Inventors

  • Pu Yangyuan

Assignees

  • 青岛海普特电子有限公司

Dates

Publication Date
20260508
Application Date
20250520

Claims (7)

  1. 1. The anti-flash injection mold comprises a lower mold (1) and an upper mold (5) and is characterized in that the upper mold (5) is movably arranged above the lower mold (1); The inside of bed die (1) has seted up recess one (7), the inboard bottom fixed mounting of recess one (7) has gasbag (8), the inboard fixed connection of side and recess one (7) of gasbag (8), recess two (9) have been seted up to the inside of bed die (1), the inboard bottom fixed mounting of recess two (9) has high temperature seal gasbag (10), the side of high temperature seal gasbag (10) and the side fixed connection of recess two (9), one side and last mould (5) swing joint of high temperature seal gasbag (10), one side fixedly connected with connecting pipe (11) of gasbag (8) inside, the one end of connecting pipe (11) extends to the inside of high temperature seal gasbag (10).
  2. 2. The anti-flash injection mold according to claim 1, wherein a groove III (12) is formed in the bottom of the inner side of the lower mold (1), a gear II (16) is rotatably mounted at the bottom of the inner side of the groove III (12), a threaded rod (17) is fixedly mounted above the gear II (16), a threaded sleeve (18) is sleeved on the outer surface of the threaded rod (17) in a threaded manner, one end of the threaded sleeve (18) extends to the upper side of the lower mold (1) and is fixedly provided with a top plate (19), a rubber pad (20) is fixedly mounted above the top plate (19), the top of the side face of the rubber pad (20) is fixedly connected with the lower mold (1), and a driving mechanism is fixedly mounted on one side of the inner side of the groove III (12).
  3. 3. The anti-flash injection mold of claim 1, wherein the left side and the right side of the lower mold (1) are fixedly provided with a first side plate (2), and the left side and the right side of the upper mold (5) are fixedly provided with a second side plate (4).
  4. 4. The anti-flash injection mold of claim 3, wherein the telescopic cylinder (3) is fixedly arranged above the first side plate (2), and the top of the telescopic cylinder (3) is fixedly connected with the bottom of the second side plate (4).
  5. 5. The anti-flash injection mold of claim 2, wherein the driving mechanism comprises a connecting block (13) fixedly arranged on one side inside the groove III (12), a motor (14) is fixedly arranged at the bottom of the connecting block (13), and a gear I (15) is fixedly arranged above a transmission shaft of the motor (14).
  6. 6. The anti-flash injection mold according to claim 1, wherein the injection hole (6) is formed above the upper mold (5), and the bottom of the injection hole (6) penetrates through the upper side and the lower side of the upper mold (5).
  7. 7. A flash-resistant injection mold according to claim 5, wherein the first gear (15) is located on one side of the second gear (16), and the second gear (16) is meshed with the first gear (15).

Description

Injection mold for preventing flash Technical Field The utility model relates to the technical field of injection molds, in particular to an anti-flash injection mold. Background The injection molding is a manufacturing method combining injection and molding technologies, has the remarkable advantages of high-speed and high-efficiency production flow, easiness in realizing automatic operation, various product styles, flexible and changeable shape design, wide size range and high accuracy, convenience in rapid iterative updating of products, and capability of forming parts with complex structures, and the forming mode is particularly suitable for mass production and manufacturing requirements of products with complex shapes, and the injection mold is an essential key device for realizing the process. The working principle of injection molds is based on the thermoplastic or thermosetting properties of plastics. In the injection molding process, the mold clamping device of the injection molding machine pushes the movable mold to move towards the fixed mold until the movable mold and the fixed mold are tightly closed to form a closed cavity, but when a common injection mold is used, a gap exists between the upper mold and the lower mold, so that the phenomenon of flash can be caused, and when the flash is avoided, the sealing strip is arranged at the edge of the injection mold, and although the sealing strip is deformable, the sealing strip can be poor in tightness between the upper mold and the lower mold when in use, so that the sealing strip needs to be improved and optimized. Disclosure of utility model In order to overcome the defects in the prior art, the utility model provides the anti-flash injection mold which has the advantages of anti-flash and convenience in removal. In order to achieve the aim, the utility model provides the technical scheme that the anti-flash injection mold comprises a lower mold and an upper mold, wherein the upper mold is movably arranged above the lower mold; The inner side of the lower die is provided with a first groove, the bottom of the inner side of the first groove is fixedly provided with an air bag, the side surface of the air bag is fixedly connected with the inner side of the first groove, the inner side of the lower die is provided with a second groove, the bottom of the inner side of the second groove is fixedly provided with a high-temperature sealing air bag, the side surface of the high-temperature sealing air bag is fixedly connected with the side surface of the second groove, one side of the high-temperature sealing air bag is movably connected with the upper die, one side of the air bag is fixedly connected with a connecting pipe, and one end of the connecting pipe extends to the inner side of the high-temperature sealing air bag. As a preferable technical scheme of the utility model, a groove III is formed in the bottom of the inner side of the lower die, a gear II is rotatably arranged at the bottom of the inner side of the groove III, a threaded rod is fixedly arranged above the gear II, a threaded sleeve is sleeved on the outer surface of the threaded rod in a threaded manner, one end of the threaded sleeve extends to the upper side of the lower die and is fixedly provided with a top plate, a rubber pad is fixedly arranged above the top plate, the top of the side surface of the rubber pad is fixedly connected with the lower die, and a driving mechanism is fixedly arranged at one side of the inner side of the groove III. As a preferable technical scheme of the utility model, the left side and the right side of the lower die are fixedly provided with the first side plate, and the left side and the right side of the upper die are fixedly provided with the second side plate. As a preferable technical scheme of the utility model, a telescopic cylinder is fixedly arranged above the first side plate, and the top of the telescopic cylinder is fixedly connected with the bottom of the second side plate. As a preferable technical scheme of the utility model, the driving mechanism comprises a connecting block fixedly arranged at one side of the inside of the groove III, a motor is fixedly arranged at the bottom of the connecting block, and a gear I is fixedly arranged above a transmission shaft of the motor. As a preferable technical scheme of the utility model, an injection hole is formed above the upper die, and the bottom of the injection hole penetrates through the upper side and the lower side of the upper die. As a preferable technical scheme of the utility model, the first gear is positioned at one side of the second gear, and the second gear is meshed with the first gear. Compared with the prior art, the utility model has the following beneficial effects: 1. According to the utility model, the telescopic cylinder is started to drive the upper die to move downwards, so that the bottom of the upper die contacts with the air bag, when the bottom of the upper die