Complex curved surface injection mold

Abstract

The utility model discloses a complex curved surface injection mold, which relates to the technical field of injection molds, and adopts the technical scheme that the complex curved surface injection mold comprises an injection fixed mold, a cavity is formed in the injection fixed mold, and a stripping mechanism is arranged in the cavity; the stripping mechanism comprises two stripping assemblies, each stripping assembly comprises a transmission shaft, the transmission shafts are arranged in the cavities, the transmission shafts are sleeved with a plurality of stripping units, the two transmission shafts are sleeved with synchronous parts, and each stripping unit comprises a connecting block. The connecting block rotates to drive the hollow pipe to rotate, the hollow pipe rotates to enable the connecting column to drive the ball head to rotate through the anti-falling block, and when the ball head rotates to make contact with the inner wall of the cavity, the ball head knocks on the cavity due to centrifugal force during rotation to knock and vibrate the injection molding fixed mold, so that an injection molding part is separated from a mold cavity of the injection molding fixed mold due to vibration; and subsequent demolding treatment on the injection-molded part is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to a complex curved surface injection mold. Background Art

[0002] The choice of plastic parts is mainly determined by the type of plastic, the initial form, and the shape and size of the product. Injection molding is generally made by compression molding, transfer molding, and injection molding. Lamination, compression molding, and thermoforming are used to shape plastics on a flat surface.

[0003] During the injection molding of existing complex curved surface injection molded parts, there is more contact between the injection molded parts and the mold cavity, which makes it difficult to demold the parts. Therefore, a complex curved surface injection mold is needed to facilitate demolding of the injection molded parts. Summary of the invention

[0004] To this end, the utility model provides a complex curved surface injection mold, which uses a stripping mechanism to solve the problem that during the injection molding of complex curved surface injection molded parts, there is more contact between the injection molded parts and the mold cavity, which makes it difficult to demold during demolding.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a complex curved surface injection mold, comprising an injection mold, a cavity is opened inside the injection mold, and a stripping mechanism is provided inside the cavity;

[0006] The stripping mechanism includes two stripping components, and the stripping component includes a transmission shaft, which is arranged inside a cavity, and a plurality of stripping units are sleeved on the outside of the transmission shaft, and synchronization components are sleeved on the outsides of the two transmission shafts. The stripping unit includes a connecting block, and the connecting block is fixedly sleeved on the outside of the transmission shaft, and a plurality of stripping components are arranged on the outside of the connecting block. The stripping component includes a hollow tube, and the hollow tube is fixedly connected to the connecting block. A spring is arranged inside the hollow tube, and an anti-stripping block is arranged at one end of the spring, a connecting column is fixedly arranged on one side of the anti-stripping block, and a ball head is fixedly arranged at one end of the connecting column.

[0007] Preferably, a cooling pipe is fixedly embedded inside the fixed injection mold, a movable injection mold is provided on one side of the fixed injection mold, and an injection nozzle is fixedly provided on one side of the movable injection mold.

[0008] Preferably, a motor is fixedly provided on one side of the injection mold, and an output end of the motor is fixedly connected to one end of one of the transmission shafts.

[0009] Preferably, two ends of the transmission shaft respectively pass through two side walls of the cavity and are connected to the two side walls of the cavity through bearings.

[0010] Preferably, one end of the spring is fixedly connected to one end of the connecting block, and the other end of the spring is fixedly connected to one end of the anti-dropping block.

[0011] Preferably, the anti-dropping block is arranged inside the hollow tube and is slidably connected to the hollow tube.

[0012] Preferably, one end of the connecting column extends outside the hollow tube and is slidably connected to the hollow tube.

[0013] Preferably, the synchronization component includes two synchronization wheels, the two synchronization wheels are fixedly sleeved on the outside of the two transmission shafts respectively, the outside of the two synchronization wheels are sleeved with a synchronization belt, and the two synchronization wheels are driven and connected by the synchronization belt.

[0014] The utility model embodiment has the following advantages:

[0015] The rotation of the transmission shaft drives multiple connecting blocks to rotate, and the rotation of the connecting blocks drives the hollow tube to rotate. The rotation of the hollow tube causes the connecting column to drive the ball head to rotate through the anti-detachment block. When the ball head rotates to contact the inner wall of the cavity, the ball head knocks on the cavity due to the centrifugal force during rotation, and knocks and vibrates the fixed mold for injection molding, so that the injection molded part and the fixed mold cavity of the injection mold are separated due to the vibration, which is convenient for the subsequent demolding of the injection molded part.

[0016] After the ball head knocks on the cavity, the ball head is squeezed and drives the connecting column to slide into the hollow tube. The connecting column moves through the anti-slip block to contract the spring, preventing the ball head from interfering with the inner wall of the cavity when rotating. When the ball head loses contact with the cavity, the contracted spring moves the anti-slip block through elastic force, and the anti-slip block moves through the connecting column to reset the ball head, facilitating subsequent continuous knocking and vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0019] Figure 1 The overall structural diagram provided by the utility model;

[0020] Figure 2 A sectional stereoscopic diagram of the stripping mechanism provided by the utility model;

[0021] Figure 3 A three-dimensional diagram of the stripping mechanism provided by the utility model;

[0022] Figure 4 This is a partial cross-sectional stereoscopic view of the stripping component provided by the utility model.

[0023] In the figure: 1 injection fixed mold, 2 cooling pipe, 3 cavity, 4 motor, 5 transmission shaft, 6 connecting block, 7 hollow tube, 8 spring, 9 anti-dropping block, 10 connecting column, 11 ball head, 12 synchronous wheel, 13 synchronous belt, 14 injection movable mold, 15 injection nozzle. DETAILED DESCRIPTION

[0024] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part 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 creative work are within the scope of protection of the present invention.

[0025] See attached Figure 1 -Attached Figure 4 The complex curved surface injection mold provided by the utility model comprises an injection mold 1, a cavity 3 is provided inside the injection mold 1, and a stripping mechanism is provided inside the cavity 3;

[0026] The stripping mechanism includes two stripping components, which include a transmission shaft 5, which is arranged inside the cavity 3, and a plurality of stripping units are sleeved outside the transmission shaft 5. The two transmission shafts 5 are sleeved outside with synchronization components, and the stripping unit includes a connecting block 6, which is fixedly sleeved outside the transmission shaft 5, and a plurality of stripping components are arranged outside the connecting block 6. The stripping component includes a hollow tube 7, which is fixedly connected to the connecting block 6, and a spring 8 is arranged inside the hollow tube 7, and an anti-stripping block 9 is arranged at one end of the spring 8, and a connecting column 10 is fixedly arranged on one side of the anti-stripping block 9, and a ball head 11 is fixedly arranged at one end of the connecting column 10;

[0027] In this embodiment, in order to facilitate the demolding of the injection molded parts, the transmission shaft 5 rotates to drive the multiple connecting blocks 6 to rotate, the connecting blocks 6 rotate to drive the hollow tube 7 to rotate, the hollow tube 7 rotates through the anti-detachment block 9 so that the connecting column 10 drives the ball head 11 to rotate, and when the ball head 11 rotates to contact the inner wall of the cavity 3, the ball head 11 knocks on the cavity 3 due to the centrifugal force during rotation, and the injection mold 1 is knocked and vibrated, so that the injection molded part and the mold cavity of the injection mold 1 are separated due to vibration, which is convenient for the subsequent demolding of the injection molded part;

[0028] Among them, in order to achieve the purpose of injection molding, the device adopts the following technical solutions: a cooling pipe 2 is fixedly embedded inside the injection mold 1, an injection movable mold 14 is provided on one side of the injection mold 1, and an injection nozzle 15 is fixedly provided on one side of the injection movable mold 14. When 14 and 1 are combined, the injection liquid enters the mold cavity through 15, and the cooling liquid is circulated inside 2 through the cooling system to quickly cool the injection liquid inside the mold cavity, so that the injection molded part is formed, and then 14 and 1 are opened, and the injection molded part is conveniently removed from the mold cavity through the stripping mechanism;

[0029] Among them, in order to achieve the purpose of synchronous rotation of the two 5, the device adopts the following technical solutions: a motor 4 is fixedly provided on one side of the injection mold 1, and the output end of the motor 4 is fixedly connected to one end of one of the transmission shafts 5. The two ends of the transmission shaft 5 respectively penetrate the two side walls of the cavity 3 and are connected to the two side walls of the cavity 3 through bearings. The synchronous component includes two synchronous wheels 12, and the two synchronous wheels 12 are respectively fixedly sleeved on the outside of the two transmission shafts 5. The two synchronous wheels 12 are externally sleeved with a synchronous belt 13. The two synchronous wheels 12 are driven and connected by the synchronous belt 13. The motor 4 is started, and the motor 4 rotates to drive the connected transmission shaft 5 to rotate. The rotation of the transmission shaft 5 causes the other transmission shaft 5 to rotate synchronously through the cooperation of the synchronous wheel 12 and the synchronous belt 13;

[0030] Among them, in order to prevent interference between 11 and the side wall 3 when the ball head 11 rotates, the device is implemented by the following technical scheme: one end of the spring 8 is fixedly connected to one end of the connecting block 6, and the other end of the spring 8 is fixedly connected to one end of the anti-slip block 9. The anti-slip block 9 is arranged inside the hollow tube 7 and is slidably connected to the hollow tube 7. One end of the connecting column 10 extends to the outside of the hollow tube 7 and is slidably connected to the hollow tube 7. After the ball head 11 knocks the cavity 3, the ball head 11 is squeezed and drives the connecting column 10 to slide into the hollow tube 7. The connecting column 10 moves through the anti-slip block 9 to cause the spring 8 to contract, preventing the ball head 11 from interfering with the inner wall of the cavity 3 when it rotates. When the ball head 11 is out of contact with the cavity 3, the contracted spring 8 causes the anti-slip block 9 to move through the elastic force, and the anti-slip block 9 moves through the connecting column 10 to reset the ball head 11, which is convenient for subsequent continuous knocking and vibration.

[0031] The use process of the utility model is as follows: when using the utility model, the injection fixed mold 1 is connected to the injection movable mold 14 and the injection molding machine, the motor 4 is connected to the external power supply, and the cooling pipe 2 is connected to the cooling system to facilitate cooling of the injection molded part during injection molding. Before the injection molded part is cooled and demolded, the motor 4 is started, and the motor 4 rotates to drive the connected transmission shaft 5 to rotate. The transmission shaft 5 rotates through the cooperation of the synchronous wheel 12 and the synchronous belt 13 to make another transmission shaft 5 rotate synchronously. The rotation of the transmission shaft 5 drives the rotation of multiple connection blocks 6. The rotation of the connection block 6 drives the rotation of the hollow tube 7. The rotation of the hollow tube 7 drives the ball head 11 to rotate through the anti-slip block 9. The ball head 11 rotates to the cavity 3, the ball head 11 strikes the cavity 3 due to the centrifugal force during rotation, and strikes and vibrates the fixed mold 1, so that the injection molded part and the mold cavity of the fixed mold 1 are separated due to vibration, which is convenient for subsequent demolding of the injection molded part. At the same time, after the ball head 11 strikes the cavity 3, the ball head 11 is squeezed and drives the connecting column 10 to slide inside the hollow tube 7. The connecting column 10 moves through the anti-slip block 9 to shrink the spring 8 to prevent the ball head 11 from interfering with the inner wall of the cavity 3 when rotating. When the ball head 11 is out of contact with the cavity 3, the contracted spring 8 moves the anti-slip block 9 through the elastic force, and the anti-slip block 9 moves through the connecting column 10 to reset the ball head 11, which is convenient for subsequent continuous striking and vibration.

[0032] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the above technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A complex curved surface injection mold, comprising an injection mold (1), characterized in that: A cavity (3) is provided inside the fixed injection mold (1), and a material removal mechanism is provided inside the cavity (3); The stripping mechanism comprises two stripping components, the stripping components comprising a transmission shaft (5), the transmission shaft (5) being arranged inside the cavity (3), a plurality of stripping units being sleeved outside the transmission shaft (5), a synchronization component being sleeved outside the two transmission shafts (5), the stripping units comprising a connecting block (6), the connecting block (6) being fixedly sleeved outside the transmission shaft (5), a plurality of stripping components being arranged outside the connecting block (6), the stripping components comprising a hollow tube (7), the hollow tube (7) being fixedly connected to the connecting block (6), a spring (8) being arranged inside the hollow tube (7), an anti-stripping block (9) being arranged at one end of the spring (8), a connecting column (10) being fixedly arranged at one side of the anti-stripping block (9), and a ball head (11) being fixedly arranged at one end of the connecting column (10).

2. The complex curved surface injection mold according to claim 1, characterized in that: A cooling pipe (2) is fixedly embedded inside the fixed injection mold (1), a movable injection mold (14) is provided on one side of the fixed injection mold (1), and an injection nozzle (15) is fixedly provided on one side of the movable injection mold (14).

3. The complex curved surface injection mold according to claim 1, characterized in that: A motor (4) is fixedly provided on one side of the injection fixed mold (1), and an output end of the motor (4) is fixedly connected to one end of one of the transmission shafts (5).

4. The complex curved surface injection mold according to claim 1, characterized in that: The two ends of the transmission shaft (5) respectively penetrate the two side walls of the cavity (3) and are connected to the two side walls of the cavity (3) via bearings.

5. The complex curved surface injection mold according to claim 1, characterized in that: One end of the spring (8) is fixedly connected to one end of the connecting block (6), and the other end of the spring (8) is fixedly connected to one end of the anti-dropping block (9).

6. The complex curved surface injection mold according to claim 1, characterized in that: The anti-fall-off block (9) is arranged inside the hollow tube (7) and is slidably connected to the hollow tube (7).

7. The complex curved surface injection mold according to claim 1, characterized in that: One end of the connecting column (10) extends outside the hollow tube (7) and is slidably connected to the hollow tube (7).

8. The complex curved surface injection mold according to claim 1, characterized in that: The synchronous component comprises two synchronous wheels (12), the two synchronous wheels (12) are respectively fixedly sleeved on the outside of two transmission shafts (5), the two synchronous wheels (12) are sleeved on the outside with a synchronous belt (13), and the two synchronous wheels (12) are driven and connected via the synchronous belt (13).

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