Mold closing mechanism of injection molding machine

Abstract

The utility model relates to the technical field of injection molding machines, and discloses an injection molding machine mold closing mechanism which comprises a base, a supporting frame is fixedly connected to the outer wall of the base, a static mold device is fixedly connected to the outer wall, away from the supporting frame, of the base, and a plurality of sliding rods are arranged between the supporting frame and the static mold device; the outer walls, located between the static mold device and the supporting frame, of the multiple sliding rods are provided with movable molds, the movable molds are slidably connected with the multiple sliding rods, the outer walls, located on the two sides of the static mold device, of the base are fixedly connected with mounting frames, the outer walls of the mounting frames are fixedly connected with driving blocks, and the inner walls of the driving blocks are rotationally connected with threaded rods. The fixed mold device is provided with a threaded rod, the outer wall of the threaded rod is sleeved with a movable block in a threaded mode, the outer wall of the movable block is fixedly connected with a sealing block, and clamping grooves matched with the sealing block are formed in the outer wall of the fixed mold device and the outer wall of the movable mold. Therefore, the condition of reducing the quality of an injection product is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding machines, and in particular to a mold clamping mechanism of an injection molding machine. Background Art

[0002] The injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. The plastic is then heated and melted by the injection mechanism, and then high pressure is applied to the molten plastic to make it ejected and fill the mold cavity. Finally, the mold is formed under the action of the clamping mechanism.

[0003] With respect to the above-mentioned related technologies, the inventor believes that the existing injection molding machines lack the function of merging and positioning the movable mold and the static mold during the mold closing process, making it difficult to tightly close the movable mold and the static mold, thereby reducing the quality of the injection mold. Therefore, an injection molding machine mold closing mechanism is proposed to solve the above-mentioned problem.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] In order to solve the problem that it is difficult to achieve tight mold closing between a dynamic mold and a static mold during the mold closing process of an injection molding machine, the present application provides a mold closing mechanism for an injection molding machine.

[0006] The present application provides an injection molding machine clamping mechanism that adopts the following technical solution:

[0007] A mold clamping mechanism for an injection molding machine comprises a base, an outer wall of the base is fixedly connected to a support frame, an outer wall of the base facing away from the support frame is fixedly connected to a static mold device, a plurality of sliding rods are arranged between the support frame and the static mold device, and a plurality of the sliding rods are fixedly connected to the support frame and the static mold device, a movable mold is arranged on the outer wall of the plurality of sliding rods located between the static mold device and the support frame, and the movable mold is slidably connected to a plurality of sliding rods, both outer walls of the base located on both sides of the static mold device are fixedly connected to mounting frames, an outer wall of the mounting frame is fixedly connected to a driving block, an inner wall of the driving block is rotatably connected to a threaded rod, a moving block is threadedly sleeved on an outer wall of the threaded rod, a sealing block is fixedly connected to the outer wall of the moving block, and a clamping groove matching the sealing block is provided on the outer walls of the static mold device and the moving mold.

[0008] Preferably, the static mold device is fixedly connected to a circular sleeve on one side of the multiple sliding rods, the outer walls of the multiple sliding rods on one side of the circular sleeve are slidably connected to a rubber sleeve, the outer walls of the multiple sliding rods between the rubber sleeve and the circular sleeve are slidably connected to a spring, and the spring is fixedly connected to the rubber sleeve and the circular sleeve.

[0009] Preferably, the outer wall of the movable mold is provided with a plurality of circular grooves adapted to the rubber sleeve.

[0010] Preferably, the side outer wall of the support frame is provided with an electric cylinder for pushing the movable mold.

[0011] Preferably, a servo motor for driving the threaded rod is provided on the side outer wall of the driving block.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] By setting a threaded rod, the threaded rods on both sides are driven to rotate, so that the threaded rod drives the moving block to move, and then the moving block drives the sealing block to move in the direction of the engaging groove, so that the sealing block overlaps with the engaging grooves on the movable mold and the static mold device, thereby completing the mold closing of the movable mold and the sliding rod. Compared with the existing technology, the injection molding machine can improve the tightness of the dynamic mold and the static mold during the mold closing process, thereby avoiding the situation of reducing the quality of the injection molded product. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an overall schematic diagram of an embodiment of the application;

[0015] Figure 2 is a three-dimensional schematic diagram of an embodiment of the application;

[0016] Figure 3 for Figure 1 A schematic diagram of the enlarged structure in the middle.

[0017] Explanation of the accompanying drawings: 1. base; 2. support frame; 3. electric cylinder; 4. movable mold; 5. static mold device; 6. sliding rod; 7. round sleeve; 8. spring; 9. rubber sleeve; 10. servo motor; 11. driving block; 12. threaded rod; 13. moving block; 14. sealing block; 15. engaging groove; 16. mounting frame; 17. round groove. DETAILED DESCRIPTION

[0018] The following is combined with Figure 1-3 This application is described in further detail.

[0019] The present application embodiment discloses a mold clamping mechanism for an injection molding machine. Figure 1-3A mold clamping mechanism for an injection molding machine includes a base 1, an outer wall of the base 1 is fixedly connected to a support frame 2, an outer wall of the base 1 away from the support frame 2 is fixedly connected to a static mold device 5, a plurality of sliding rods 6 are arranged between the support frame 2 and the static mold device 5, and the plurality of sliding rods 6 are fixedly connected to the support frame 2 and the static mold device 5, a movable mold 4 is arranged on the outer wall between the static mold device 5 and the support frame 2, and the movable mold 4 is slidably connected to the plurality of sliding rods 6, and the plurality of sliding rods 6 are used to facilitate the positioning of the movable mold 4 for moving the mold clamping, and the outer walls of the base 1 on both sides of the static mold device 5 are fixedly connected to mounting frames 16, and the mounting frames 16 are The outer wall is fixedly connected to a driving block 11, the inner wall of the driving block 11 is rotatably connected to a threaded rod 12, the outer wall of the threaded rod 12 is threadedly sleeved with a moving block 13, the outer wall of the moving block 13 is fixedly connected to a sealing block 14, and the outer walls of the static mold device 5 and the dynamic mold 4 are both provided with a clamping groove 15 adapted to the sealing block 14. By driving the threaded rod 12 to rotate, the threaded rod 12 drives the moving block 13 to move, and then the moving block 13 drives the sealing block 14 to move, so that the sealing block 14 is clamped with the clamping grooves 15 on the static mold device 5 and the dynamic mold 4, thereby improving the tightness between the dynamic mold 4 and the static mold device 5.

[0020] The static mold device 5 is located on one side of the plurality of sliding rods 6 and is fixedly connected with a circular sleeve 7. The outer walls of the plurality of sliding rods 6 on one side of the circular sleeve 7 are slidably connected with a rubber sleeve 9. The rubber sleeve 9 is made of rubber material to reduce the impact force between the dynamic mold 4 and the static mold device 5. The outer walls of the plurality of sliding rods 6 located between the rubber sleeve 9 and the circular sleeve 7 are slidably connected with a spring 8, and the spring 8 is fixedly connected to the rubber sleeve 9 and the circular sleeve 7. Through the arrangement of the plurality of springs 8, the docking of the dynamic mold 4 and the static mold device 5 is buffered, thereby improving the service life of the dynamic mold 4 and the static mold device 5.

[0021] The outer wall of the movable mold 4 is provided with a plurality of circular grooves 17 adapted to the rubber sleeve 9 , so that the rubber sleeve 9 can be engaged in the circular grooves 17 , thereby improving the sealing performance between the movable mold 4 and the static mold device 5 .

[0022] The side outer wall of the support frame 2 is provided with an electric cylinder 3 for pushing the movable mold 4. By starting the electric cylinder 3, the electric cylinder 3 drives the movable mold 4 to move.

[0023] A servo motor 10 for driving the threaded rod 12 is disposed on the side outer wall of the driving block 11 . By starting the servo motor 10 , the servo motor 10 drives the threaded rod 12 to move.

[0024] The implementation principle of the mold clamping mechanism of an injection molding machine in the embodiment of the present application is: by starting the electric cylinder 3, the electric cylinder 3 drives the movable mold 4 to move, so that the movable mold 4 moves along the trajectory of multiple sliding rods 6 toward the static mold device 5, and the impact force of the movable mold 4 is buffered by the spring 8 and the rubber sleeve 9, so that the mold on the movable mold 4 and the mold on the static mold device 5 overlap, and then by starting the servo motors 10 on both sides, the servo motors 10 drive the threaded rod 12 to rotate, and then the threaded rod 12 drives the moving block 13 to move in the direction of the engaging groove 15, so that the sealing block 14 is engaged with the engaging grooves 15 on the movable mold 4 and the static mold device 5, thereby improving the tightness of the mold clamping between the movable mold 4 and the static mold device 5.

[0025] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0026] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above are only preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A mold clamping mechanism for an injection molding machine, comprising a base (1), characterized in that: The outer wall of the base (1) is fixedly connected to a support frame (2); the outer wall of the base (1) facing away from the support frame (2) is fixedly connected to a static mold device (5); a plurality of sliding rods (6) are arranged between the support frame (2) and the static mold device (5); the plurality of sliding rods (6) are fixedly connected to the support frame (2) and the static mold device (5); a movable mold (4) is arranged on the outer wall between the static mold device (5) and the support frame (2); the movable mold (4) is slidably connected to the plurality of sliding rods (6); The base (1) is located on both sides of the outer wall of the static mold device (5), and is fixedly connected to a mounting frame (16); the outer wall of the mounting frame (16) is fixedly connected to a driving block (11); the inner wall of the driving block (11) is rotatably connected to a threaded rod (12); the outer wall of the threaded rod (12) is threadedly sleeved with a moving block (13); the outer wall of the moving block (13) is fixedly connected to a sealing block (14); and the outer walls of the static mold device (5) and the moving mold (4) are both provided with a snap-fitting groove (15) adapted to the sealing block (14).

2. The mold clamping mechanism of an injection molding machine according to claim 1, characterized in that: The static mold device (5) is fixedly connected to a circular sleeve (7) on one side of the plurality of sliding rods (6), and the outer walls of the plurality of sliding rods (6) on one side of the circular sleeve (7) are slidably connected to a rubber sleeve (9), and the outer walls of the plurality of sliding rods (6) between the rubber sleeve (9) and the circular sleeve (7) are slidably connected to a spring (8), and the spring (8) is fixedly connected to the rubber sleeve (9) and the circular sleeve (7).

3. The mold clamping mechanism of an injection molding machine according to claim 1, characterized in that: The outer wall of the movable mold (4) is provided with a plurality of circular grooves (17) adapted to the rubber sleeve (9).

4. The mold clamping mechanism of an injection molding machine according to claim 1, characterized in that: An electric cylinder (3) for pushing the movable mold (4) is provided on the side outer wall of the support frame (2).

5. The mold clamping mechanism of an injection molding machine according to claim 1, characterized in that: A servo motor (10) for driving a threaded rod (12) is provided on the side outer wall of the driving block (11).

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