CN201833537U - Turntable drive device for two-color injection molding machine - Google Patents

Abstract

The utility model discloses a double-colored injection molding machine's carousel drive arrangement, it mainly contains a carousel, and combine a servo motor and a reduction gear set to be connected a drive gear, it is rotatory to be used for driving the carousel, on being applied to double-colored injection molding machine's die holder, drive gear drives the rotatory actuating mechanism design of carousel with this servo motor collocation reduction gear, make the carousel can be controlled to do accurate location, more can provide low rotational speed to the carousel, high torsional drive strength, make the carousel in the in-process of rotatory transform position, can steadily and rotate smoothly, and can accurate location, ensure that the product after double-colored injection molding reaches excellent quality level.

Description

Turntable drive device for two-color injection molding machine

technical field

The utility model relates to a two-color injection molding machine, in particular to the design of a turntable drive device capable of providing precise positioning functions in the two-color injection molding machine.

Background technique

The currently known two-color injection molding machine is mainly provided with a fixed mold base and a movable mold base on its machine table. The movable mold base can move relative to the fixed mold base. The movable mold base faces the side of the fixed mold base. A turntable driving device is provided to provide two groups of mold cores to be assembled and change the positions of the two groups of mold cores. As shown in Figure 3 and Figure 4, the turntable driving device has a turntable 60 for assembly on the movable mold base 80, a motor 61 is set on the movable mold base 80, and the mandrel of the motor 61 is provided with a transmission gear 62 to mesh with the gear portion on the outer periphery of the turntable 60, so that the motor 61 can drive the turntable 60 to rotate under control. Swap the positions of the two groups of mold cores, and use the positioning pin 63 on the turntable 60 to match the semicircular arc groove 81 of the movable mold base 80 to limit the position, so that the mold cores rotate with the turntable 60 to the predetermined position for positioning, and then use the two sets of mold cores They are respectively injected into different colors in sequence to form a two-color object.

Although the above-mentioned two-color injection molding machine can use the motor to drive the turntable to rotate through the transmission gear to adjust the positions of the two sets of mold cores, and use the positioning pin and arc groove design for positioning, but this positioning method has the disadvantage of inaccurate positioning, which is easy to affect the injection. The quality of the formed article, and because the rotational driving force of the motor directly drives the transmission gear to drive the turntable, there is a shortcoming of insufficient output torque, so that the turntable cannot achieve a good stable rotation state.

Utility model content

The technical problem to be solved by the utility model is to improve the shortcomings of the existing two-color injection molding machine, such as poor rotational torque and inaccurate positioning, of the turntable drive device.

The technical solution of the present invention is to provide a turntable drive device for a two-color injection molding machine, which includes a turntable for pivoting on one side of the mold base of the two-color injection molding machine. The outer periphery of the turntable has a gear part. That is, the turntable driving device further includes a servo motor, a reduction gear set and a transmission gear, the servo motor is used to assemble on the side of the mold base, the reduction gear set includes a driving gear and a driven gear, The driving gear set is arranged on the mandrel of the servo motor, the passive gear and the driving gear are interlocked, and a transmission shaft is arranged in the passive gear, and the transmission gear set is arranged on the transmission shaft, and is connected to the outer periphery of the turntable. The gear parts are meshed.

In the turntable driving device of the two-color injection molding machine, the driven gear and the driving gear are directly meshed and interlocked.

In the turntable driving device of the two-color injection molding machine, the driven gear indirectly meshes with the driving gear through an intermediate gear.

The utility model has the advantages that: when the turntable drive device is applied to the two-color injection molding machine, in addition to the design of the driving mechanism that can use the servo motor and the reduction gear to drive the transmission gear to drive the turntable to rotate, the turntable can be controlled for precise positioning, and more It can provide low-speed, high-torque driving force for the rotation of the turntable, so that the turntable can rotate smoothly and position accurately during the process of rotating and changing positions, ensuring that the products after two-color injection molding can reach an excellent quality level.

Description of drawings

Fig. 1 is a schematic front view plan view of a preferred embodiment of the turntable driving device of the two-color injection molding machine of the present invention.

FIG. 2 is a schematic side plan view of a preferred embodiment of the turntable driving device of the two-color injection molding machine shown in FIG. 1 .

Fig. 3 is a schematic front plan view of a turntable drive device of a conventional two-color injection molding machine.

FIG. 4 is a schematic side plan view of the turntable drive device of the conventional two-color injection molding machine shown in FIG. 3 .

Detailed ways

Below, in conjunction with the accompanying drawings and preferred embodiments of the utility model, the technical means adopted by the utility model to achieve the intended purpose of the utility model will be further elaborated.

As shown in Fig. 1 and Fig. 2, it discloses a preferred embodiment of the turntable driving device of the two-color injection molding machine of the present invention, which is assembled on the mold base 50 of the two-color injection molding machine. The turntable driving device includes a turntable 10, A servo motor 20, a reduction gear set 30 and a transmission gear 40, wherein:

The turntable 10 is pivotally arranged on one side of the mold base 50, and the outer periphery of the turntable 10 has a gear part 11; the servo motor 20 is arranged on the side of the mold base 50; the reduction gear set 30 includes a plurality of meshing gears, the plurality of gears include A driving gear 31 and a driven gear 32, the driving gear 31 is set on the spindle of the servo motor 20, the driven gear 32 can be directly meshed with the driving gear 31, or the driven gear 32 can be indirectly meshed with the driving gear 31 through an intermediate gear Linked, the driven gear 32 has a transmission shaft 33 , and the transmission gear 40 is assembled on the transmission shaft 33 and meshes with the gear portion 11 on the outer periphery of the turntable 10 .

When the turntable drive device of the utility model is applied to a two-color injection molding machine, the turntable 10 is used to provide two groups of mold cores to be assembled on it. The motor 20 drives the turntable 10 to rotate through the reduction gear set 30 and the transmission gear 40, so that the mold cores rotate with the turntable 10 to a predetermined position for positioning, and then the two sets of mold cores are sequentially injected into different colors to form a two-color object.

It can be seen from the foregoing description that the turntable drive device of the utility model is a driving mechanism design that uses a servo motor with a reduction gear to drive the transmission gear to drive the turntable to rotate, so that the turntable can be controlled for precise positioning, and it can provide low speed and high speed for the rotation of the turntable. The driving force of the torsion makes the turntable rotate smoothly and accurately during the process of rotating and changing positions, and can be accurately positioned to ensure that the products after two-color injection molding reach an excellent quality level.

The above descriptions are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Anyone in the field Skilled persons, without departing from the scope of the technical solution of the present utility model, should be able to use the technical content disclosed above to make some changes or modify them into equivalent embodiments with equivalent changes. The technical essence of the utility model makes any simple modifications, equivalent changes and modifications to the above embodiments, all still belong to the scope of the technical solutions of the utility model.

Claims (3)

1. A turntable drive device for a two-color injection molding machine, which includes a turntable for pivoting on one side of the mold base of the two-color injection molding machine. The outer periphery of the turntable has a gear part, and it is characterized in that: the turntable drive device It further includes a servo motor, a reduction gear set and a transmission gear. The servo motor is used to assemble on the side of the mold base. The reduction gear set includes a driving gear and a driven gear. The driving gear set is arranged on the On the mandrel of the servo motor, the driven gear is connected with the driving gear, and a transmission shaft is arranged in the driven gear. The transmission gear set is arranged on the transmission shaft and meshes with the gear portion on the outer periphery of the turntable. 2 . The turntable driving device of a two-color injection molding machine according to claim 1 , wherein the driven gear is directly meshed with the driving gear. 3 . The turntable driving device of a two-color injection molding machine according to claim 1 , wherein the driven gear is indirectly meshed and interlocked with the driving gear through an intermediate gear. 4 .

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