Injection molding machine mold rotating device and injection molding machine

Abstract

The application provides an injection molding machine mold rotating device and an injection molding machine. The injection molding machine mold rotating device comprises a base, a bottom plate, a rotating tank chain and a connecting bracket. A first mounting hole is formed in the base, a first meshing part is arranged on the circumferential sidewall of the bottom plate, and a second meshing part is arranged on the sidewall of the first mounting hole; the bottom plate is rotationally connected to the base through the first meshing part and the second meshing part. One end of the connecting bracket is connected to the second side surface of the bottom plate opposite to the first side surface, one end of the rotating tank chain is connected to the base, and the other end is connected to the bottom plate through the connecting bracket. A second mounting hole is formed in the bottom plate, at least part of the medium pipeline of the injection molding machine is arranged in the rotating tank chain and the second mounting hole and connected to the mold. The winding direction of the rotating tank chain is consistent with the rotating direction of the bottom plate. The problems of complex medium pipeline, high cost and frequent failures in the prior art are solved.

Description

Technical Field

[0001] This invention relates to the field of injection molding, and in particular to an injection molding machine mold rotation device and an injection molding machine. Background Technology

[0002] With the continuous updates and iterations of injection molding technology and injection molded products, in order to meet different production needs, such as when performing multi-component injection molding, multiple half molds are required. During the production process, some half molds can be closed first, and then other half molds can be closed. To achieve this function, a mold rotation device (or a mold closing unit intermediate turntable) is used to support the rotation of some half molds, and then close them with other half molds.

[0003] In existing technologies, the fluid media such as water, oil, and gas required for injection molding are transported to the media collection and redistribution block on the intermediate turntable of the mold clamping unit via a media torque pipe, and then transferred to the target semi-mold. The media torque pipe pipeline design is complex and costly. Furthermore, the connection relationship of the media torque pipe is complicated, and rotary joints or multi-channel universal rotary slip rings are usually used for connection and transition. When encountering high-temperature water or high-pressure oil, water and oil leakage problems often occur, resulting in frequent failures.

[0004] It is evident that existing technologies suffer from problems such as complex media pipelines, high costs, and frequent failures. Summary of the Invention

[0005] This invention provides a mold rotation device and an injection molding machine, which solves the problems of complex media pipelines, high costs and frequent failures in the prior art.

[0006] This invention provides a rotating device for an injection molding machine mold, including a base, a bottom plate, a rotating tank chain, and a connecting bracket;

[0007] The base has a first mounting hole, the bottom plate has a first engaging part on its circumferential sidewall, and the first mounting hole has a second engaging part on its sidewall; the bottom plate is rotatably connected to the base through the first engaging part and the second engaging part.

[0008] The first side surface of the base plate is used to mount the mold. One end of the connecting bracket is connected to a second side surface of the base plate opposite to the first side surface. One end of the rotary tank chain is connected to the base, and the other end is connected to the base plate via the connecting bracket. A second mounting hole is provided on the base plate. At least a portion of the injection molding machine's media pipes pass through the rotary tank chain and the second mounting hole and are connected to the mold. The winding direction of the rotary tank chain is consistent with the rotation direction of the base plate.

[0009] The injection molding machine mold rotation device provided by the present invention avoids severe torsion of the medium pipeline during rotation by means of the cooperation of the connecting bracket, the second mounting hole and the rotating tank chain, thereby reducing the operating cost of the medium pipeline, reducing the equipment failure rate and improving the equipment stability and service life.

[0010] Optionally, the injection molding machine mold rotation device also includes a media distributor, which is detachably mounted on the side wall of the mold, and the media pipeline is connected to the mold through the media distributor.

[0011] In the injection molding machine mold device of this invention, since the medium distributor is located in the mold and separate from the base, compared with the conventional technology where the medium distributor is embedded in the base, the medium (e.g., water, oil, gas, etc.) in this invention is not affected by the base temperature, resulting in good heat dissipation and facilitating the safe and stable operation of the equipment.

[0012] Optionally, the injection molding machine mold rotation device further includes a first drive unit connected to a second engagement unit to drive the base plate to rotate between a first position and a second position through the first engagement unit and the second engagement unit; the circumferential angle between the first position and the second position differs by 180°.

[0013] Optionally, the connecting bracket includes a plurality of first connecting rods, a first connecting ring, a plurality of second connecting rods, and a second connecting ring;

[0014] The two ends of a plurality of first connecting rods are respectively connected to the base plate and the first connecting ring, and are distributed along the circumference of the first connecting ring; the two ends of a plurality of second connecting rods are respectively connected to the first connecting ring and the second connecting ring, and are distributed along the circumference of the second connecting ring.

[0015] The other end of the rotating tank chain is connected to a first connecting ring and a first connecting rod and a second connecting rod located on both sides of the first connecting ring.

[0016] The connecting bracket of this invention can provide different connection schemes for the medium pipeline through the above structure, so as to adapt to more injection molding application scenarios.

[0017] Optionally, multiple first connecting rods and multiple second connecting rods are staggered circumferentially along the first connecting ring. This structure can reduce interference between the media pipeline and other components during connection and rotation, thus improving the smoothness of equipment operation.

[0018] Optionally, the first side surface of the base plate is provided with an auxiliary mounting block, which is used to install a cubic mold or a plate mold.

[0019] Optionally, the base plate is cylindrical, and the second mounting hole is elongated.

[0020] The present invention also provides an injection molding machine employing the injection molding machine mold rotation device described in the above embodiments and possible implementations, further comprising an injection molding machine tool and a second drive unit. The second drive unit is connected to a base to drive the base to move along the extension direction of the injection molding machine tool.

[0021] Optionally, the injection molding machine also includes a parallel tank chain connected to the injection molding machine tool, with at least a portion of the injection molding machine's media conduit passing through the parallel tank chain.

[0022] Optionally, the injection molding machine also includes a moving platen and a fixed platen, with the injection molding machine mold rotation device located between the moving platen and the fixed platen. Attached Figure Description

[0023] Figure 1 This is a schematic diagram illustrating the working principle of the injection molding machine mold rotation device according to an embodiment of the present invention. Figure 1 ;

[0024] Figure 2 This is a schematic diagram illustrating the working principle of the injection molding machine mold rotation device according to an embodiment of the present invention. Figure 2 ;

[0025] Figure 3 This is a three-dimensional structural schematic diagram of the injection molding machine mold rotation device according to an embodiment of the present invention;

[0026] Figure 4 This is a partial exploded view of the injection molding machine according to an embodiment of the present invention;

[0027] Figure 5 This is a partial three-dimensional structural diagram of an injection molding machine according to an embodiment of the present invention, wherein the plate-shaped mold is mounted on an auxiliary mounting block;

[0028] Figure 6 This is a partial three-dimensional structural diagram of an injection molding machine according to an embodiment of the present invention; wherein, the cubic mold is mounted on an auxiliary mounting block.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1: Injection molding machine mold rotation device;

[0031] 11: Base; 110: First mounting hole; 111: First engaging part; 112: Second engaging part; 113: Locking element; 12: Base plate; 120: Second mounting hole; 13: Rotating tank chain;

[0032] 14: Connecting bracket; 141: First connecting rod; 142: First connecting ring; 143: Second connecting rod; 144: Second connecting ring;

[0033] 15: Auxiliary mounting block; 151: Media distributor;

[0034] 2: Injection molding machine; 201: Moving mold plate; 202: Fixed mold plate; 203: Cubic mold; 204: Plate mold;

[0035] 21: Medium pipeline; 22: Injection molding machine tool; 23: Second drive unit; 231: Slider; 24: Parallel tank chain. Detailed Implementation

[0036] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0037] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of the invention is usually placed in during use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the present invention.

[0039] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0040] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0041] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0042] This invention provides a mold rotation device for injection molding machines, which is mainly used in injection molding scenarios involving multi-component components. In these scenarios, multiple half-molds are typically required. For example, please refer to [link to relevant documentation]. Figure 1 and Figure 2In one injection molding scenario, half-mold A and half-mold C are first closed, the first injection unit injects the material, then the injection molding machine's mold rotation device rotates, for example, 180°, half-mold B and half-mold C are closed, the second injection unit injects the material, and thus the product injection is completed. This process is repeated. Figure 1 The mold rotating device of the injection molding machine is equipped with a plate-shaped mold. Figure 2 The mold rotating device of the injection molding machine is equipped with a cubic mold. During injection, the components (such as water, oil, gas and other fluid media) need to flow through the media pipeline.

[0043] In traditional technology, the medium pipeline is connected between the rotating device and the medium centralized redistribution unit. Before rotation, it is vertical, and after rotation, it twists with the rotating device into an S-shape or "twisted" shape. The medium pipeline needs to bear the torsional force to cooperate with the rotation of the rotating device. Furthermore, the medium pipeline uses rotary joints or multi-channel universal rotary slip rings for connection and transition. When encountering high-temperature water or high-pressure oil, problems such as water leakage and oil leakage often occur.

[0044] This invention provides a mold rotation device 1 for an injection molding machine. Please refer to [link / reference]. Figure 3 and Figure 4 It includes a base 11, a base plate 12, a rotating tank chain 13, and a connecting bracket 14.

[0045] The base 11 has a first mounting hole 110, the bottom plate 12 has a first engaging part 111 on its circumferential sidewall, and a second engaging part 112 on the sidewall of the first mounting hole 110. The bottom plate 12 is rotatably connected to the base 11 through the first engaging part 111 and the second engaging part 112.

[0046] The first side surface of the base plate 12 is used to mount the mold. One end of the connecting bracket 14 is connected to the second side surface of the base plate 12 opposite to the first side surface. One end of the rotating tank chain 13 is connected to the base 11, and the other end is connected to the base plate 12 via the connecting bracket 14. The base plate 12 has a second mounting hole 120. At least a portion of the media pipe 21 of the injection molding machine passes through the rotating tank chain 13 and the second mounting hole 120 and is connected to the mold. The winding direction of the rotating tank chain 13 is consistent with the rotation direction of the base plate 12.

[0047] The shapes of the base 11 and the base plate 12 are not limited. In one embodiment, the base 11 is rectangular columnar, and the base plate 12 may be, for example, cylindrical. Therefore, the first mounting hole 110 is a circular hole. Furthermore, the shape of the second mounting hole 120 is not limited; for example, it may be elongated, such as a waist-shaped hole, a rectangular hole, etc. In other alternative embodiments, it may also be circular, semi-circular, etc. The type of mold is not limited; for example, it may be a plate mold 204. In other alternative embodiments, it may also be a cubic mold 203 (e.g., ...). Figure 6 (As shown).

[0048] With the above structure, the injection molding machine mold rotation device 1 provided by the present invention, through the cooperation of the connecting bracket 14, the second mounting hole 120 and the rotating tank chain 13, makes the medium pipe 21 bend along its own extension direction to follow the rotation of the base 11, thereby avoiding the generation of severe torsional force on the medium pipe 21 during the rotation process, reducing the use cost of the medium pipe 21, and reducing the equipment failure rate, improving the equipment stability and service life.

[0049] In one implementation, such as Figure 4 and Figure 5 As shown, the injection molding machine mold rotation device 1 also includes a media distributor 151, which is detachably mounted on the side wall of the mold (e.g., plate mold 204). The media pipe 21 is connected to the mold (e.g., plate mold 204) through the media distributor 151. In one embodiment, the media distributor 151 can be arranged on both sides of the mold as needed. With this structure, since the media distributor 151 is located in the mold and separate from the base 11, compared with the conventional technology where the media distributor 151 is embedded in the base 11, the state of the media (e.g., water, oil, gas, etc.) in this embodiment of the invention is not affected by the temperature of the base 11, resulting in good heat dissipation and facilitating the safe and stable operation of the equipment.

[0050] In one implementation, please refer to Figure 3 and Figure 4 The injection molding machine mold rotation device 1 also includes a first driving part (not shown in the figure), which is connected to a second engaging part 112. The first driving part drives the base plate 12 to rotate between a first position and a second position via the first engaging part 111 and the second engaging part 112. The circumferential angle difference between the first position and the second position is 180°. Taking a plate-shaped mold 204 as an example, the first position can be understood as the front of the plate-shaped mold 204 facing the moving mold plate and the back facing the fixed mold plate. For example... Figure 4 From a perspective, the front of the plate-shaped mold 204 faces left and the back faces right. The second position can be understood as the front of the plate-shaped mold 204 facing the fixed mold plate and the back facing the moving mold plate. For example... Figure 4 From a viewing angle, the front of the plate-shaped mold 204 faces to the right, and the back faces to the left. Furthermore, in one embodiment, a locking member 113 is provided on the base 11 to lock the base plate 12 in a first position or a second position.

[0051] Furthermore, the first meshing part 111 can be integrally formed with the base plate 12, or it can be an independent structure disposed on the circumferential side wall of the base plate 12. In one embodiment, the first meshing part 111 is a bearing gear, and the second meshing part 112 is a drive gear. In other alternative embodiments, the first meshing part 111 can also be a synchronous pulley, the second meshing part 112 can be a synchronous belt, and the first drive part can be a motor, actuator, etc., that drives the drive wheel to rotate; the present invention does not limit this.

[0052] For further details, please see as follows: Figure 3 The connecting bracket 14 includes a plurality of first connecting rods 141, a first connecting ring 142, a plurality of second connecting rods 143, and a second connecting ring 144.

[0053] The two ends of a plurality of first connecting rods 141 are respectively connected to the base plate 12 and the first connecting ring 142, and are distributed along the circumference of the first connecting ring 142. The two ends of a plurality of second connecting rods 143 are respectively connected to the first connecting ring 142 and the second connecting ring 144, and are distributed along the circumference of the second connecting ring 144.

[0054] The other end of the rotating tank chain 13 is connected to the first connecting ring 142 and a first connecting rod 141 and a second connecting rod 143 located on both sides of the first connecting ring 142. The connecting bracket 14 of this embodiment of the invention, through the above structure, can provide different connection schemes for the medium pipeline 21 to adapt to more injection molding application scenarios.

[0055] Furthermore, the multiple first connecting rods 141 and multiple second connecting rods 143 are staggered circumferentially distributed along the first connecting ring 142. This structure reduces interference between the medium pipe 21 and other components during connection and rotation, thus improving the smoothness of equipment operation. In one embodiment, the multiple first connecting rods 141 are equally spaced circumferentially along the first connecting ring 142, and the multiple second connecting rods 143 are equally spaced circumferentially along the first connecting ring 142. In other alternative embodiments, they may be non-equally spaced.

[0056] In one implementation, such as Figure 5 and Figure 6 As shown, the first side surface of the base plate 12 is provided with an auxiliary mounting block 15, which is used to mount a cubic mold 203 or a plate mold 204. Specifically, the surface of the auxiliary mounting block 15 is provided with mounting positioning blocks that match the corresponding molds to adapt to different molds.

[0057] The present invention also provides an injection molding machine 2, please refer to [link / reference]. Figures 4-6The injection molding machine mold rotation device 1, which is based on the above embodiments and possible implementation methods, specifically includes a moving platen 201 and a fixed platen 202 in the injection molding machine 2. The injection molding machine mold rotation device 1 is located between the moving platen 201 and the fixed platen 202.

[0058] In one embodiment, the system further includes an injection molding machine tool 22 and a second drive unit 23. The second drive unit 23 is connected to the base 11 to drive the base 11 to move along the extending direction of the injection molding machine tool 22. In one embodiment, a slider 231 is provided on the circumferential edge of the base 11, and a guide rail is provided on the injection molding machine tool 22. The base 11 moves along the guide rail of the injection molding machine tool 22 via the slider 231. The slider 231 may be, for example, a traveling sliding device. The type of the second drive unit 23 is not limited; for example, it may be a traveling drive device. As long as it can drive the base 11 to move along the extending direction of the injection molding machine tool, it does not depart from the scope of the embodiments of the present invention. In one embodiment, as... Figures 4-6 As shown, the injection molding machine 2 also includes a parallel tank chain 24, which is connected to the injection molding machine tool 22. At least a portion of the media pipe 21 of the injection molding machine 2 passes through the parallel tank chain 24. The parallel tank chain 24 can prevent the media pipe 21 from being damaged by tension during translation.

[0059] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A rotating device for an injection molding machine mold, characterized in that, Includes base, bottom plate, rotating tank chain, and connecting bracket; The base has a first mounting hole, the bottom plate has a first engaging part on its circumferential sidewall, and the first mounting hole has a second engaging part on its sidewall; the bottom plate is rotatably connected to the base through the first engaging part and the second engaging part. The first side surface of the base plate is used to mount the mold. One end of the connecting bracket is connected to the second side surface of the base plate opposite to the first side surface. One end of the rotating tank chain is connected to the base, and the other end is connected to the base plate through the connecting bracket. A second mounting hole is provided on the base plate. At least a portion of the media pipe of the injection molding machine passes through the rotating tank chain and the second mounting hole and is connected to the mold. The winding direction of the rotating tank chain is consistent with the rotation direction of the base plate; It also includes a media distributor, which is detachably mounted on the side wall of the mold, and the media pipeline is connected to the mold through the media distributor; The base (11) is rectangular columnar, the bottom plate is cylindrical, and the second mounting hole is elongated. It also includes a first driving part, which is connected to the second engaging part to drive the base plate to rotate between a first position and a second position through the first engaging part and the second engaging part; the first position and the second position are 180° apart in circumferential angle, and a locking member (113) is provided on the base (11) to lock the base plate (12) in the first position or the second position.

2. The injection molding machine mold rotation device as described in claim 1, characterized in that, The connecting bracket includes a plurality of first connecting rods, a first connecting ring, a plurality of second connecting rods, and a second connecting ring; The two ends of the plurality of first connecting rods are respectively connected to the base plate and the first connecting ring, and are distributed along the circumference of the first connecting ring; the two ends of the plurality of second connecting rods are respectively connected to the first connecting ring and the second connecting ring, and are distributed along the circumference of the second connecting ring. The other end of the rotating tank chain is connected to the first connecting ring and a first connecting rod and a second connecting rod located on both sides of the first connecting ring.

3. The injection molding machine mold rotation device as described in claim 2, characterized in that, The plurality of first connecting rods and the plurality of second connecting rods are staggered along the circumference of the first connecting ring.

4. The injection molding machine mold rotation device as described in claim 1, characterized in that, The first side surface of the base plate is provided with an auxiliary mounting block, which is used to install a cubic mold or a plate mold.

5. An injection molding machine, characterized in that, The injection molding machine mold rotating device according to any one of claims 1 to 4 further includes an injection molding machine tool and a second drive unit; The second drive unit is connected to the base to drive the base to move along the extension direction of the injection molding machine tool.

6. The injection molding machine as described in claim 5, characterized in that, It also includes a parallel tank chain connected to the injection molding machine tool, and at least a portion of the injection molding machine's media conduit passes through the parallel tank chain.

7. The injection molding machine as described in claim 5, characterized in that, It also includes a moving template and a fixed template, with the injection molding machine mold rotation device located between the moving template and the fixed template.

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