Injection mold discharging device with uniform contact structure

Abstract

The utility model discloses an injection mold discharging device with a uniform contact structure, which comprises a mold, an injection molding part is arranged in a cavity on the upper surface of the mold, a flange plate is arranged above the mold, a contact mechanism is arranged on the flange plate, and demolding is realized and the injection molding part is prevented from being damaged by uniformly supporting the inner wall of the injection molding part. According to the injection mold discharging device with the uniform contact structure, the injection molding part can be stably separated from a mold under the uniform adsorption of the suction cups in a manner of uniformly attaching the inner side surface of the injection molding part through the uniformly arranged suction cups, so that the damage of the injection molding part caused by non-uniform stress during demolding is avoided, and the service life of the injection molding part is prolonged. And the suction cup rotates relative to the center rod through the connecting rod, so that the device can adapt to injection molding parts with different inner diameters, the application range of the device is enlarged, and the sealing performance of the suction cup is guaranteed in cooperation with the self-locking performance of threaded connection of the screw rod and the piston rod.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an injection mold discharging device with a uniform contact structure. Background Art

[0002] Plastic molding is also called injection molding. It is a molding method that combines injection and molding. When making composite products on the molding mold, although the surface of the molding mold is smooth and coated or paved with release material, it is not always easy to remove the composite products from the mold. The demoulding of composite products must overcome adhesion and adsorption. The adhesion is generated after the resin matrix and the mold bonding surface are cured and molded. The adsorption force is the adsorption force generated under atmospheric pressure when the prepreg is laid on the mold, and the interface is in a nearly vacuum state. Therefore, the demoulding of composite products must rely on external force to overcome the adhesion and adsorption of the product to the mold. Manual demoulding is a common method for composite products. The mold method is generally suitable for composite products with simpler appearance, and its adhesion and adsorption forces are also relatively small. Usually, the mold is knocked with a wooden hammer or a rubber hammer first, and the vibration generated by the knocking makes the composite product partially detached from the mold. Generally, we can judge whether the product and the mold are detached from the sound during the knocking. If the sound is solid and heavy, it is not separated. If the sound is hollow and light, it is detached. After one detachment, the shock point is gradually expanded to gradually expand the detachment range. Finally, you can use a tool to pry at one end to try to remove the composite product from the mold. However, this demolding method is labor-intensive and time-consuming. Any negligence during the operation will affect the quality of the product and the service life of the tooling mold. Utility Model Content

[0003] The utility model aims to provide an injection mold discharging device with a uniform contact structure to solve the problem of poor demoulding method proposed in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an injection mold discharging device with a uniform contact structure, comprising a mold, an injection molded part is arranged inside the upper surface cavity of the mold, and a flange plate is arranged above the mold, and a contact mechanism is arranged on the flange plate, which realizes demolding and prevents damage to the injection molded part by uniformly supporting the inner wall of the injection molded part.

[0005] Preferably, the contact mechanism includes: a center rod, which is fixedly mounted on the lower surface of the flange plate, and a rotatable connecting rod is mounted on the side surface of the center rod, and a suction cup is provided at one end of the connecting rod, a sliding piston rod is installed inside the center rod, and a piston plate is fixedly mounted on the lower end of the piston rod, a gear is rotatably mounted on the upper end of the center rod, and a screw is fixedly connected to the lower end of the gear.

[0006] By adopting the above technical solution, the piston rod can be driven to slide through the screw rod when the gear rotates.

[0007] Preferably, the connecting rods are evenly distributed on the outer surface of the center rod, and a spring is connected between the connecting rods and the center rod. The center rod and the connecting rod are both hollow in design, and the side surface of the center rod is connected to one end of the connecting rod through a hose.

[0008] By adopting the above technical solution, the center rod can realize the inner diameter of the injection molded part that can be adsorbed by the center rod through the suction cup by rotating.

[0009] Preferably, the gear is concentrically arranged with the screw rod, the screw rod is threadedly connected with the piston rod, and the piston plate is connected with the center rod by sliding friction.

[0010] By adopting the above technical solution, the piston plate can slide to change the pressure inside the center rod.

[0011] Preferably, a driving mechanism is provided on the flange plate to ensure stable adsorption of the injection molded part by means of rotational extrusion.

[0012] By adopting the above technical solution, the injection molded part can be taken away from the mold by being adsorbed.

[0013] Preferably, the driving mechanism includes: a motor, the lower end of the output shaft of the motor passes through the inner top surface of the flange plate, and the lower end of the output shaft of the motor is fixedly connected to a swing rod, and a contact wheel is rotatably installed at one end of the swing rod, a sliding rod is fixedly provided on the inner surface of the flange plate, and a sliding displacement plate is installed on the outer surface of the sliding rod, a gear rod is fixedly provided on the lower surface of the displacement plate, and a contact plate is fixedly provided on the upper surface of the displacement plate.

[0014] By adopting the above technical solution, the contact wheel can push the displacement plate by squeezing the contact plate.

[0015] Preferably, a spring is connected between the displacement plate and the flange plate, and the gear rod is meshingly connected with the gear.

[0016] By adopting the above technical solution, when the gear rod is driven to move, it can drive the gear to rotate through meshing with the gear.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the injection mold discharging device with a uniform contact structure:

[0018] 1. The inner surface of the injection molded part is evenly covered by evenly arranged suction cups, so that the injection molded part can be stably removed from the mold under the uniform adsorption of the suction cups, thereby avoiding damage to the injection molded part caused by uneven force during demolding;

[0019] 2. Furthermore, the suction cup rotates relative to the center rod through the connecting rod, so that the device can adapt to injection molded parts with different inner diameters, increasing the application range of the device, and the self-locking property of the threaded connection between the screw rod and the piston rod can ensure the sealing of the suction cup;

[0020] 3. Furthermore, by rotating the contact wheel through the swing rod to squeeze the contact plate, the displacement plate can cooperate with the spring between the flange plate to achieve reciprocating sliding, so as to achieve smooth switching of the locking state of the injection molded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0022] Figure 2 It is a three-dimensional structural schematic diagram of the cross-section surface connecting the sliding rod and the displacement plate of the utility model;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the overall cutaway surface of the utility model;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of the cross-section surface connecting the injection molded part and the suction cup of the utility model;

[0025] Figure 5 This is a schematic diagram of a three-dimensional structure of a center rod and a connecting rod connected to the utility model;

[0026] Figure 6 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0027] Figure 7 For this utility model Figure 4 Enlarged structural diagram at B in the middle.

[0028] In the figure: 1. mold; 2. injection molded part; 3. flange plate; 4. center rod; 5. connecting rod; 6. suction cup; 7. piston rod; 8. piston plate; 9. gear; 10. screw; 11. motor; 12. swing rod; 13. contact wheel; 14. sliding rod; 15. displacement plate; 16. gear rod; 17. contact plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-7The utility model provides a technical solution: an injection mold discharging device with a uniform contact structure, comprising a mold 1, an injection molded part 2 is arranged inside the upper surface cavity of the mold 1, and a flange plate 3 is arranged above the mold 1, and a contact mechanism is arranged on the flange plate 3, and demoulding is achieved by uniformly supporting the inner wall of the injection molded part 2 and preventing the injection molded part 2 from being damaged;

[0031] The contact mechanism includes: a center rod 4, which is fixedly mounted on the lower surface of the flange plate 3, and a rotatable connecting rod 5 is mounted on the side surface of the center rod 4, and a suction cup 6 is arranged at one end of the connecting rod 5, a sliding piston rod 7 is mounted inside the center rod 4, and a piston plate 8 is fixedly arranged at the lower end of the piston rod 7, a gear 9 is rotatably mounted on the upper end of the center rod 4, and a screw 10 is fixedly connected to the lower end of the gear 9, the connecting rods 5 are evenly distributed on the outer surface of the center rod 4, and a spring is connected between the connecting rod 5 and the center rod 4, the center rod 4 and the connecting rod 5 are both hollow in design, and the side surface of the center rod 4 is connected to one end of the connecting rod 5 through a hose, the gear 9 is concentrically arranged with the screw 10, and the screw 10 is threadedly connected to the piston rod 7, and the piston plate 8 is connected to the center rod 4 by sliding friction;

[0032] When in use, the suction cup 6 fits against the inner surface of the injection molded part 2. When the gear 9 is driven to rotate, the gear 9 drives the piston plate 8 to slide relative to the center rod 4 through the threaded connection between the screw 10 and the piston rod 7. The sliding of the piston plate 8 realizes the suction of the air inside the suction cup 6 at one end of the connecting rod 5, so that the suction cup 6 is under negative pressure and stably adsorbed to the injection molded part 2.

[0033] A driving mechanism is provided on the flange plate 3, and the stable adsorption of the injection molded part 2 is ensured by rotating and extruding. The driving mechanism includes: a motor 11, the lower end of the output shaft of the motor 11 passes through the inner top surface of the flange plate 3, and the lower end of the output shaft of the motor 11 is fixedly connected with a swing rod 12, and one end of the swing rod 12 is rotatably installed with a contact wheel 13, a sliding rod 14 is fixedly provided on the inner surface of the flange plate 3, and a sliding displacement plate 15 is installed on the outer surface of the sliding rod 14, a gear rod 16 is fixedly provided on the lower surface of the displacement plate 15, and a contact plate 17 is fixedly provided on the upper surface of the displacement plate 15, a spring is connected between the displacement plate 15 and the flange plate 3, and the gear rod 16 is meshingly connected with the gear 9;

[0034] During installation, the flange plate 3 is moved to the top of the mold 1 by the lifting equipment, and then the flange plate 3 is moved downward by the lifting equipment so that the suction cup 6 contacts the inner surface of the injection molded part 2. The connecting rod 5 is rotated relative to the center rod 4 to adapt to the injection molded parts 2 with different inner diameters. Then the motor 11 is started to drive the swing rod 12 and the contact wheel 13 to rotate. The contact wheel 13 squeezes the contact plate 17 to make the displacement plate 15 slide relative to the flange plate 3 through the sliding rod 14. The displacement plate 15 drives the gear rod 16 to move, and the gear 9 is driven to rotate through the meshing of the gear rod 16 and the gear 9.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An injection mold discharge device with a uniform contact structure, comprising a mold (1), an injection molded part (2) is arranged inside a cavity on the upper surface of the mold (1), and a flange plate (3) is arranged above the mold (1), characterized in that: The flange plate (3) is provided with a contact mechanism, which realizes demoulding and prevents damage to the injection molded part (2) by evenly supporting the inner wall of the injection molded part (2); The contact mechanism comprises: a center rod (4), the center rod (4) being fixedly mounted on the lower surface of the flange plate (3), a rotatable connecting rod (5) being mounted on the side surface of the center rod (4), and a suction cup (6) being arranged at one end of the connecting rod (5), a sliding piston rod (7) being mounted inside the center rod (4), and a piston plate (8) being fixedly mounted at the lower end of the piston rod (7), a gear (9) being rotatably mounted on the upper end of the center rod (4), and a screw rod (10) being fixedly connected to the lower end of the gear (9).

2. The injection mold discharging device with a uniform contact structure according to claim 1, characterized in that: The connecting rods (5) are evenly distributed on the outer surface of the central rod (4), and a spring is connected between the connecting rods (5) and the central rod (4). The central rod (4) and the connecting rod (5) are both hollow in design, and the side surface of the central rod (4) is connected to one end of the connecting rod (5) via a hose.

3. The injection mold discharging device with a uniform contact structure according to claim 1, characterized in that: The gear (9) and the screw rod (10) are arranged concentrically, the screw rod (10) and the piston rod (7) are threadedly connected, and the piston plate (8) and the center rod (4) are slidingly frictionally connected.

4. The injection mold discharging device with a uniform contact structure according to claim 1, characterized in that: The flange plate (3) is provided with a driving mechanism, which ensures stable adsorption of the injection molded part (2) by means of rotational extrusion.

5. The injection mold discharging device with a uniform contact structure according to claim 4, characterized in that: The driving mechanism comprises: a motor (11), the lower end of the output shaft of the motor (11) passes through the inner top surface of the flange plate (3), the lower end of the output shaft of the motor (11) is fixedly connected to a swing rod (12), and one end of the swing rod (12) is rotatably mounted with a contact wheel (13), a sliding rod (14) is fixedly arranged on the inner surface of the flange plate (3), and a sliding displacement plate (15) is mounted on the outer surface of the sliding rod (14), a gear rod (16) is fixedly arranged on the lower surface of the displacement plate (15), and a contact plate (17) is fixedly arranged on the upper surface of the displacement plate (15).

6. The injection mold discharging device with a uniform contact structure according to claim 5, characterized in that: A spring is connected between the displacement plate (15) and the flange plate (3), and the gear rod (16) is meshingly connected with the gear (9).

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