Injection molding machine mold rotating device and injection molding machine

Abstract

The utility model 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 side wall of the bottom plate, and a second meshing part is arranged on the side wall 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 support is connected to a second side surface, opposite to the first side surface, in the bottom plate, one end of the rotating tank chain is connected to the base, the other end of the rotating tank chain is connected to the bottom plate through the connecting support, a second mounting hole is formed in the bottom plate, and at least part of a medium pipeline of the injection molding machine penetrates 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 rotating direction of the bottom plate. The problems that in the prior art, medium pipelines are complex, cost is high, and faults occur frequently are solved.

Description

Technical Field

[0001] The utility model relates to the field of injection molding, in particular to a mold rotating device for an injection molding machine and an injection molding machine. Background Art

[0002] With the increasing update and iteration of injection molding technology and injection molded products, in order to meet different production needs, for example, when performing multi-component injection molding, multiple half molds are required for injection molding. During the production process, a part of the half molds can be first closed, and then the other part of the half molds can be closed. To achieve this function, a mold rotating device (or can be called an intermediate turntable of the mold clamping unit) is used to carry part of the half molds to rotate, and then be closed with other half molds.

[0003] In the prior art, fluid media such as water, oil, and gas required for injection molding can be transported through a media torque tube to a media centralized redistribution block on the intermediate turntable of the mold clamping unit, and then transmitted into the target half mold. The pipeline design of the media torque tube is complex and costly. Moreover, the connection relationship of the media torque tube is complex, and a rotary joint or a multi-channel universal rotary slip ring is usually used for connection transition. When encountering high-temperature water or high-pressure oil, problems such as water leakage and oil leakage often occur, and the failures are frequent.

[0004] It can be seen that the prior art has problems such as complex media pipelines, high costs, and frequent failures. Summary of the Utility Model

[0005] The utility model provides a mold rotating device for an injection molding machine and an injection molding machine, which solves the problems of complex media pipelines, high costs, and frequent failures in the prior art.

[0006] The utility model provides a mold rotating device for an injection molding machine, which includes a base, a bottom plate, a rotating drag chain, and a connecting bracket;

[0007] The base is provided with a first mounting hole, the circumferential side wall of the bottom plate is provided with a first meshing portion, and the side wall of the first mounting hole is provided with a second meshing portion; the bottom plate is rotationally connected to the base through the first meshing portion and the second meshing portion;

[0008] The first side surface of the bottom plate is used for installing a mold. 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 drag chain is connected to the base, and the other end is connected to the bottom plate through the connecting bracket. The bottom plate is provided with a second mounting hole, and at least part of the media pipelines of the injection molding machine pass through the rotating drag chain and the second mounting hole and are connected to the mold. Among them, the winding direction of the rotating drag chain is the same as the rotation direction of the bottom plate.

[0009] The injection molding machine die rotation device provided by the present utility model, through the mutual cooperation of the connection bracket, the second mounting hole, and the rotating drag chain, avoids the violent torsion of the medium pipeline during the rotation process, reduces the use cost of the medium pipeline, and moreover, reduces the equipment failure rate and improves the equipment stability and service life.

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

[0011] In the injection molding machine device of the embodiment of the present utility model, since the medium distributor is provided on the die and separated from the base, compared with the prior art where the medium distributor is embedded in the base, the state of the medium (such as water, oil, gas, etc.) in the embodiment of the present utility model is not affected by the temperature of the base, and the heat dissipation effect is good, which is beneficial to the safe and stable operation of the equipment.

[0012] Optionally, the injection molding machine die rotation device further includes a first driving part, which is connected to the second meshing part to drive the bottom plate to rotate between a first position and a second position through the first meshing part and the second meshing part; the circumferential angle between the first position and the second position is 180°.

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

[0014] Both ends of the plurality of first connecting rods are respectively connected to the bottom plate and the first connecting ring and are distributed along the circumferential direction of the first connecting ring, and both 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 circumferential direction of the second connecting ring;

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

[0016] The connection bracket of the embodiment of the present utility model can provide different connection schemes for the medium pipeline through the above structure to adapt to more injection molding application scenarios.

[0017] Optionally, the plurality of first connecting rods and the plurality of second connecting rods are circumferentially offset along the circumferential direction of the first connecting ring. Such a structure can reduce the interference between the medium pipeline and other components during the connection and following rotation processes, which helps to improve the smoothness of the equipment operation.

[0018] Optionally, an auxiliary mounting block is provided on the first side surface of the bottom plate, and the auxiliary mounting block is used for mounting a cubic die or a plate-shaped die.

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

[0020] The present utility model also provides an injection molding machine, which adopts the injection molding machine mold rotating device involved in the above-mentioned various embodiments and possible implementation manners, and further includes an injection molding machine bed and a second driving part. The second driving part is connected to the base to drive the base to move along the extending direction of the injection molding machine bed.

[0021] Optionally, the injection molding machine further includes a parallel drag chain, the parallel drag chain is connected to the injection molding machine bed, and at least part of the medium pipelines of the injection molding machine are arranged through the parallel drag chain.

[0022] Optionally, the injection molding machine further includes a moving template and a fixed template, and the injection molding machine mold rotating device is located between the moving template and the fixed template. Description of the Drawings

[0023] Figure 1 Schematic diagram of the working principle of the injection molding machine mold rotating device according to the embodiment of the present utility model Figure 1 ;

[0024] Figure 2 Schematic diagram of the working principle of the injection molding machine mold rotating device according to the embodiment of the present utility model Figure 2 ;

[0025] Figure 3 Schematic perspective view of the injection molding machine mold rotating device according to the embodiment of the present utility model;

[0026] Figure 4 Exploded perspective view of the partial structure of the injection molding machine according to the embodiment of the present utility model;

[0027] Figure 5 Partial perspective view of the injection molding machine according to the embodiment of the present utility model, wherein the plate-shaped mold is installed on the auxiliary mounting block;

[0028] Figure 6 Partial perspective view of the injection molding machine according to the embodiment of the present utility model; wherein the cubic mold is installed on the auxiliary mounting block.

[0029] Description of the Reference Numerals:

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

[0031] 11: Base; 110: First mounting hole; 111: First engaging portion; 112: Second engaging portion; 113: Locking member; 12: Bottom plate; 120: Second mounting hole; 13: Rotating drag 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: Medium distributor;

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

[0035] 21: Medium pipeline; 22: Injection molding machine tool; 23: Second driving part; 231: Slide block; 24: Parallel drag chain. Detailed implementation mode

[0036] The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. This embodiment is implemented on the premise of the technical solution of the present utility model, and the detailed implementation mode and specific operation process are given, but the protection scope of the present utility model is not limited to the following embodiments.

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

[0038] In the description of this embodiment, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0039] The terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0040] In the description of this embodiment, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific situations.

[0041] To make the purpose, technical solution and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0042] The present utility model provides an injection molding machine mold rotating device, which is mostly applied to the injection molding scenario of multi-component injection molding. In this application scenario, generally multiple half molds are required. For example, please refer to Figure 1 and Figure 2, in an injection molding scenario, half mold A and half mold C first close the mold, the first injection station injects, then the mold rotating device of the injection molding machine rotates, for example, rotates 180°, half mold B and half mold C close the mold, and the second injection station injects. In this way, one product injection molding is completed, and so on. Among them, Figure 1 the mold installed on the mold rotating device of the injection molding machine is a plate-shaped mold, Figure 2 the mold installed on the mold rotating device of the injection molding machine is a cubic mold. When performing injection, each component (such as fluid media like water, oil, gas, etc.) needs to flow through the media pipeline.

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

[0044] The present utility model provides an injection molding machine mold rotating device 1. Please refer to Figure 3 and Figure 4 , which includes a base 11, a bottom plate 12, a rotating tank chain 13, and a connecting bracket 14.

[0045] A first mounting hole 110 is formed on the base 11. A first engaging portion 111 is provided on the circumferential side wall of the bottom plate 12, and a second engaging portion 112 is provided on the side wall of the first mounting hole 110. The bottom plate 12 is rotatably connected to the base 11 through the first engaging portion 111 and the second engaging portion 112.

[0046] The first side surface of the bottom plate 12 is used for installing the mold. One end of the connecting bracket 14 is connected to the second side surface of the bottom 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 bottom plate 12 through the connecting bracket 14. A second mounting hole 120 is formed on the bottom plate 12. At least part of the media pipeline 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. Among them, the winding direction of the rotating tank chain 13 is the same as the rotating direction of the bottom plate 12.

[0047] The shapes of the base 11 and the bottom plate 12 are not limited. In one embodiment, the base 11 is in a rectangular column shape, and the bottom plate 12 can be, for example, a cylindrical shape. Therefore, the first mounting hole 110 is a circular hole. Further, the shape of the second mounting hole 120 is not limited. For example, it can be a long strip shape, such as a kidney-shaped hole, a rectangular hole, etc. In other alternative embodiments, it can also be a circular shape, a semi-circular shape, etc. The type of the mold is not limited. For example, it can be a plate-shaped mold 204. In other alternative embodiments, it can also be a cubic mold 203 (as Figure 6 shown).

[0048] With the above structure, the injection molding machine mold rotating device 1 provided by the present utility model enables the medium pipeline 21 to bend along its own extending direction to follow the rotation of the base 11 through the mutual cooperation of the connecting bracket 14, the second mounting hole 120, and the rotating drag chain 13. This avoids generating a strong torsional force on the medium pipeline 21 during the rotation process, reduces the usage cost of the medium pipeline 21, and moreover, reduces the equipment failure rate and improves the equipment stability and service life.

[0049] In one embodiment, as Figure 4 and Figure 5 shown, the injection molding machine mold rotating device 1 further includes a medium distributor 151. The medium distributor 151 is detachably mounted on the side wall of the mold (such as the plate-shaped mold 204), and the medium pipeline 21 is connected to the mold (such as the plate-shaped mold 204) through the medium distributor 151. In one embodiment, the medium distributor 151 can be arranged on both sides of the mold as required. With such a structure, since the medium distributor 151 is arranged on the mold and separated from the base 11, compared with the solution in the traditional technology where the medium distributor 151 is embedded in the base 11, the state of the medium (such as water, oil, gas, etc.) in the embodiments of the present utility model is not affected by the temperature of the base 11, and the heat dissipation effect is good, which is beneficial to the safe and stable operation of the equipment.

[0050] In one embodiment, please refer to Figure 3 and Figure 4 , the injection molding machine mold rotating device 1 further includes a first driving part (not shown in the figure). The first driving part is connected to the second meshing part 112 and drives the bottom plate 12 to rotate between a first position and a second position through the first meshing part 111 and the second meshing part 112. The circumferential angle between the first position and the second position is 180°. Taking the plate-shaped mold 204 as an example, the first position can be understood as the front surface of the plate-shaped mold 204 facing the moving template and the back surface facing the fixed template. For example, Figure 4 from a perspective, the front surface of the plate-shaped mold 204 faces left and the back surface faces right. The second position can be understood as the front surface of the plate-shaped mold 204 facing the fixed template and the back surface facing the moving template. For example, Figure 4 from a perspective, the front surface of the plate-shaped mold 204 faces right and the back surface faces left. Further, in one embodiment, a locking part 113 is provided on the base 11 to lock the bottom plate 12 at the first position or the second position.

[0051] Further, the first engaging portion 111 can be integrally formed with the bottom plate 12 or an independent structure disposed on the circumferential side wall of the bottom plate 12. In one embodiment, the first engaging portion 111 is a bearing gear and the second engaging portion 112 is a driving gear. In other alternative embodiments, the first engaging portion 111 can also be a synchronous pulley, the second engaging portion 112 can be a synchronous belt, and the first driving portion can be a motor, an actuator, etc. that drives the driving wheel to rotate. The present utility model does not limit this.

[0052] Further, please refer to FIG. 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] Both ends of the plurality of first connecting rods 141 are respectively connected to the bottom plate 12 and the first connecting ring 142 and are circumferentially distributed along the first connecting ring 142. Both ends of the plurality of second connecting rods 143 are respectively connected to the first connecting ring 142 and the second connecting ring 144 and are circumferentially distributed along 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 the embodiment of the present utility model can provide different connection schemes for the medium pipeline 21 through the above structure to adapt to more injection molding application scenarios.

[0055] Furthermore, the plurality of first connecting rods 141 and the plurality of second connecting rods 143 are circumferentially staggered with respect to each other along the first connecting ring 142. Such a structure can reduce the interference between the medium pipeline 21 and other components during connection and following rotation, which helps to improve the smoothness of the operation of the equipment. In one embodiment, the plurality of first connecting rods 141 are equidistantly arranged along the circumference of the first connecting ring 142, and the plurality of second connecting rods 143 are equidistantly arranged along the circumference of the first connecting ring 142. In other alternative embodiments, they can also be arranged non-equidistantly.

[0056] In one embodiment, as Figure 5 and Figure 6 shown, an auxiliary mounting block 15 is provided on the first side surface of the bottom plate 12. The auxiliary mounting block 15 is used to mount the cubic mold 203 or the plate-shaped mold 204. Specifically, mounting positioning blocks matching the corresponding molds are provided on the surface of the auxiliary mounting block 15 to adapt to different molds.

[0057] The present utility model also provides an injection molding machine 2. Please refer to Figures 4 to 6, adopting the injection molding machine die rotating device 1 involved in the above-mentioned various embodiments and possible implementation manners. Specifically, the injection molding machine 2 further includes a moving template 201 and a fixed template 202, and the injection molding machine die rotating device 1 is located between the moving template 201 and the fixed template 202.

[0058] In one implementation manner, it further includes an injection molding machine bed 22 and a second driving part 23. The second driving part 23 is connected to the base 11 to drive the base 11 to move along the extending direction of the injection molding machine bed 22. In one implementation manner, a slider 231 is provided on the circumferential edge of the base 11, and a guide rail is provided on the injection molding machine bed 22. The base 11 moves along the guide rail of the injection molding machine bed 22 through the slider 231. The slider 231 can be, for example, a traveling sliding device. Among them, the type of the second driving part 23 is not limited. For example, a traveling driving device, as long as it can drive the base 11 to move along the extending direction of the injection molding machine, it does not depart from the scope of the embodiments of the present invention. In one implementation manner, as Figures 4 to 6 shown, the injection molding machine 2 further includes a parallel drag chain 24. The parallel drag chain 24 is connected to the injection molding machine bed 22, and at least part of the medium pipeline 21 of the injection molding machine 2 passes through the parallel drag chain 24. By means of the parallel drag chain 24, it is possible to avoid damage to the medium pipeline 21 due to tensile force during the translation process.

[0059] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning, or limited experiments on the basis of the prior art shall fall within the protection scope determined by the claims.

Claims

1. A mold rotating device for an injection molding machine, characterized in that: Includes base, bottom plate, rotating tank chain and connecting bracket; The base is provided with a first mounting hole, the circumferential side wall of the bottom plate is provided with a first meshing portion, and the side wall of the first mounting hole is provided with a second meshing portion; the bottom plate is rotatably connected to the base through the first meshing portion and the second meshing portion; The first side surface of the bottom plate is used to install the mold, 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 opened on the bottom plate, and at least part of the medium pipeline of the injection molding machine is passed through the rotating tank chain and the second mounting hole and connected to the mold; Wherein, the winding direction of the rotating tank chain is consistent with the rotation direction of the base plate.

2. The injection molding machine mold rotating device according to claim 1, characterized in that: It also includes a medium distributor, which is detachably mounted on the side wall of the mold, and the medium pipeline is connected to the mold through the medium distributor.

3. The injection molding machine mold rotating device according to claim 1, characterized in that: It also includes a first driving part, which is connected to the second meshing part to drive the base plate to rotate between a first position and a second position through the first meshing part and the second meshing part; the first position and the second position have a circumferential angle difference of 180°.

4. The mold rotating device for an injection molding machine according to 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; Two ends of the plurality of first connecting rods are respectively connected to the bottom plate and the first connecting ring and are distributed along the circumference of the first connecting ring; 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.

5. The mold rotating device for an injection molding machine according to claim 4, characterized in that: The plurality of first connecting rods and the plurality of second connecting rods are staggeredly distributed along the circumference of the first connecting ring.

6. The mold rotating device for an injection molding machine according to claim 1, characterized in that: An auxiliary mounting block is disposed on the first side surface of the bottom plate, and the auxiliary mounting block is used to mount a cubic mold or a plate-shaped mold.

7. The mold rotating device for an injection molding machine according to claim 1, characterized in that: The bottom plate is cylindrical, and the second mounting hole is long and narrow.

8. An injection molding machine, characterized in that: The mold rotating device for an injection molding machine comprises the device according to any one of claims 1 to 7, and further comprises an injection molding machine bed and a second driving unit; The second driving part is connected to the base to drive the base to move along the extension direction of the injection molding machine.

9. The injection molding machine according to claim 8, characterized in that It also includes a parallel tank chain, which is connected to the injection molding machine, and at least part of the medium pipeline of the injection molding machine is passed through the parallel tank chain.

10. The injection molding machine according to claim 8, characterized in that It also includes a movable platen and a fixed platen, and the injection molding machine mold rotating device is located between the movable platen and the fixed platen.

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