阅读说明：本技术 一种适用于尼龙快速成型设备的铺粉传动机构 (Powder paving transmission mechanism suitable for nylon rapid forming equipment ) 是由 程思 陈伟 马艳丽 王肖 于 2021-07-26 设计创作，主要内容包括：本发明属于机械传动装置技术领域,公开了一种适用于尼龙快速成型设备的铺粉传动机构,包括：铺粉辊平移机构和铺粉辊自转机构。尼龙设备打印成型过程中,铺粉辊平移机构带动铺粉辊自转机构左右平移的同时也通过同步带传动和锥齿轮传动实现铺粉辊的自转。该机构适用于尼龙快速成型设备打印中的铺粉功能,铺粉辊的平移与铺粉辊的自转共用一个驱动电机,减少了高温自转电机从而大大降低了生产成本。(The invention belongs to the technical field of mechanical transmission devices, and discloses a powder laying transmission mechanism suitable for nylon rapid forming equipment, which comprises: spread powder roller translation mechanism and spread powder roller rotation mechanism. In the printing and forming process of the nylon equipment, the powder spreading roller translation mechanism drives the powder spreading roller rotation mechanism to translate left and right, and simultaneously, the rotation of the powder spreading roller is realized through synchronous belt transmission and bevel gear transmission. The mechanism is suitable for a powder laying function in printing of nylon rapid prototyping equipment, translation of the powder laying roller and rotation of the powder laying roller share one driving motor, and therefore high-temperature rotation motors are reduced, and production cost is greatly reduced.)

1. The utility model provides a spread powder drive mechanism suitable for nylon rapid prototyping equipment which characterized in that, spread powder drive mechanism suitable for nylon rapid prototyping equipment includes: spread powder roller translation mechanism and spread powder roller rotation mechanism.

In the printing and forming process of the nylon equipment, the powder spreading roller translation mechanism drives the powder spreading roller rotation mechanism to translate left and right, and meanwhile, the powder spreading roller in the powder spreading roller rotation mechanism keeps rotating through transmission.

2. The powder spreading transmission mechanism suitable for nylon rapid prototyping equipment of claim 1, wherein the powder spreading transmission mechanism suitable for nylon rapid prototyping equipment further comprises:

the powder spreading machine comprises a forming cylinder, a left powder feeding cylinder, a right powder feeding cylinder, a left powder overflowing groove, a right powder overflowing groove, a powder spreading roller translation mechanism, a powder spreading roller rotation mechanism, a heating system, a forming heat preservation cavity, a laser forming system and an electrical appliance control system.

3. The powder spreading transmission mechanism suitable for nylon rapid prototyping equipment as defined in claim 1, wherein the powder spreading translation mechanism drives a synchronous pulley transmission mechanism consisting of a synchronous pulley, a synchronous belt, a synchronous pulley support and a tensioning screw when in operation;

when the synchronous belt runs back and forth, the transition plate can translate back and forth on the guide rail sliding block assembly, the switch collision block stops when touching the travel switches at the left end and the right end, powder paving is finished once when the switch collision block moves to the left end or the right end, and the powder paving translation motor is continuously and repeatedly started and stopped in the process.

4. The powder spreading transmission mechanism suitable for nylon quick forming equipment as claimed in claim 3, wherein the synchronous belt passes through between the two rollers, the deep groove ball bearing and the synchronous pulley, and under the clamping of the two rollers, the deep groove ball bearing and the synchronous pulley, the teeth of the synchronous belt are meshed with the synchronous pulley;

when the synchronous belt runs, the synchronous belt wheel rotates, the synchronous belt wheel on the same shaft rotates, the rotation is transmitted to the synchronous belt wheel of the powder spreading roller rotation mechanism through the synchronous belt, the bevel gear on the same shaft rotates, and the bevel gear shaft meshed with the bevel gear rotates;

then the rotation is transmitted to the powder spreading roller through the coupler, and when the powder spreading translation motor works, the synchronous belt simultaneously drives the left and right translation of the powder spreading roller mechanism and the rotation of the powder spreading roller.

Technical Field

The invention belongs to the technical field of mechanical transmission devices, and particularly relates to a powder laying transmission mechanism suitable for nylon rapid forming equipment.

Background

The nylon rapid prototyping equipment is based on a digital model file, uses powdered nylon bondable material to construct a model of an object in a layer-by-layer stacking and accumulating mode (namely, a lamination modeling method), and a powder laying transmission mechanism is a main component of the nylon rapid prototyping equipment.

At present, the prior art of the powder spreading transmission mechanism commonly used in the industry is as follows: the prior art adopts the mode of spreading powder roller translation and rotation independent drive, spreads powder roller translation promptly and spreads powder roller rotation respectively and use a motor drive respectively, and concrete process is: the powder spreading roller translation motor drives the translation synchronous belt to rotate, then drives the transition plate connected with the translation synchronous belt to translate left and right, finally drives the whole translation of the powder spreading roller rotation mechanism on the transition plate, and the rotation motor of the powder spreading roller drives the powder spreading roller to rotate through the coupler in the translation process to complete the powder spreading action. Because the nylon part molding printing temperature is about 200 ℃, the powder spreading roller is used in a high-temperature environment for a long time, the self-rotating motor must use a high-temperature resistant motor, and in addition, in order to control the operation of a plurality of motors, the program complexity is increased, so the production cost is increased.

In summary, the problems of the prior art are as follows:

(1) the rotation of the existing powder spreading roller uses an independent high-temperature resistant motor, so that the production cost is increased.

(2) To control multiple motors, the complexity of the control procedure is increased, as well as the cost and difficulty of operation of the device.

The difficulty in solving the technical problems is as follows:

how to remove a high-temperature rotation motor while realizing the powder spreading function, reduce the cost, simplify a complex multi-motor control program and reduce the equipment operation difficulty.

The significance of solving the technical problems is as follows:

with the continuous development of modern industrial technologies, people pursue more production and manufacturing technologies with low cost, high efficiency, simplicity and easy operation. The powder spreading transmission mechanism not only can realize the powder spreading function of nylon rapid forming equipment, but also can effectively reduce the production cost, simplify the control program of a multi-motor and reduce the operation difficulty of the equipment.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a powder laying transmission mechanism suitable for nylon rapid forming equipment.

The invention is realized by the following steps: the utility model provides a spread powder drive mechanism suitable for nylon rapid prototyping equipment, includes: the powder spreading roller translation mechanism and the powder spreading roller rotation mechanism share one motor for driving, and the translation and rotation of the powder spreading roller are realized by one motor drive, so that the powder spreading function of the nylon rapid forming equipment during printing is completed;

in the printing process of the nylon rapid prototyping equipment, the motor drives the powder spreading roller translation mechanism through the synchronous belt wheel, the powder spreading roller translation mechanism drives the powder spreading roller rotation mechanism on the transition plate to translate left and right, meanwhile, the powder spreading roller translation drives the synchronous belt wheel in the powder spreading roller rotation mechanism to rotate through the small synchronous belt drive, and then the bevel gear on the same shaft is meshed with another bevel gear to realize the rotation of the powder spreading roller.

Further, this powder drive mechanism of shop suitable for nylon rapid prototyping equipment still includes:

the powder spreading machine comprises a forming cylinder, a left powder feeding cylinder, a right powder feeding cylinder, a left powder overflowing groove, a right powder overflowing groove, a powder spreading roller translation mechanism, a powder spreading roller rotation mechanism, a heating system, a forming heat preservation cavity, a laser forming system and an electrical appliance control system.

Further, when the powder paving roller translation mechanism works, a synchronous pulley transmission mechanism consisting of a synchronous pulley, a synchronous belt, a synchronous pulley support and a tensioning screw is driven;

when the synchronous belt runs back and forth, the transition plate can translate back and forth on the guide rail sliding block assembly, the switch collision block stops when touching the travel switches at the left end and the right end, powder paving is finished once when the switch collision block moves to the left end or the right end, and the powder paving translation motor is continuously and repeatedly started and stopped in the process.

Further, the synchronous belt penetrates through the space between the two rollers, the deep groove ball bearing and the synchronous belt wheel, and the belt teeth of the synchronous belt are meshed with the synchronous belt wheel under the clamping of the two rollers, the deep groove ball bearing and the synchronous belt wheel;

when the synchronous belt runs, the synchronous belt wheel rotates, the synchronous belt wheel on the same shaft rotates, the rotation is transmitted to the synchronous belt wheel of the powder spreading roller rotation mechanism through the synchronous belt, the bevel gear on the same shaft rotates, and the bevel gear shaft meshed with the bevel gear rotates;

then the bevel gear shaft is transmitted to the powder spreading roller through the coupler, namely, when the powder spreading translation motor works, the synchronous belt simultaneously drives the left and right translation of the powder spreading roller mechanism and the rotation of the powder spreading roller.

In summary, the advantages and positive effects of the invention are: the powder spreading transmission mechanism suitable for the nylon rapid forming equipment continuously realizes the powder spreading function of the nylon forming equipment, and the powder spreading transmission mechanism only realizes two actions of translation and rotation of the powder spreading roller through one motor, so that a high-temperature rotation motor is removed, the production cost is reduced, the multi-motor control program is simplified, and the equipment operation difficulty is reduced. By adopting the scheme of the invention, the cost of a single nylon rapid forming device is reduced by about 19500 yuan, which is only 2.5 percent of the original cost, and is shown in the following table 1.

TABLE 1 cost comparison

Drawings

FIG. 1.1 is a left side view of a powder spreading transmission mechanism suitable for a nylon rapid prototyping device provided by the embodiment of the invention;

FIG. 1.2 is a front view of a powder laying transmission mechanism suitable for nylon rapid prototyping equipment provided by the embodiment of the invention;

wherein in fig. 1.1, fig. 1.2: a laser forming system, a forming heat preservation cavity, a heating system, a heat preservation cover, a powder spreading roller rotating mechanism, a powder spreading roller translation mechanism, a forming cylinder and a powder feeding cylinder.

Fig. 2 is a schematic diagram of the powder spreading provided by the embodiment of the invention.

FIG. 3 is a diagram of a powder spreading drive mechanism provided by an embodiment of the present invention; the powder spreading roller comprises a powder spreading roller translation mechanism, a powder spreading roller rotation mechanism, a translation motor and a powder spreading roller.

FIG. 4.1 is a first view of a translation mechanism of the powder spreading roller provided by the embodiment of the invention;

FIG. 4.2 is a second view of a translation mechanism of the powder spreading roller provided by the embodiment of the invention;

FIG. 4.3 is a third view of a translation mechanism of the powder spreading roller provided by the embodiment of the invention;

a, drawing a translation mechanism of the powder spreading roller; b. a cross section A-A in the powder spreading translation mechanism; c. a B-B cross section in the powder spreading translation mechanism;

FIG. 4.4 is a structural view of a transmission case assembly provided by an embodiment of the invention;

a, a three-dimensional structural view of a transmission box assembly; b. a section view of the gearbox assembly C-C; c. a section view of the gearbox assembly B-B; d. a gear box assembly front view;

FIG. 4.5 is a structural diagram of a self-rotating mechanism of the powder spreading roller provided by the embodiment of the invention;

wherein in FIGS. 4.1-4.5: powder spreading guide rail seat, powder spreading translation motor, synchronous belt wheel support, screw tensioning screw, stroke switch, collision block and tooth 0 driving box assemblySynchronous beltSynchronous belt clamping plateTransition plateSlide connecting blockGuide rail sliding block assemblyGuide rail sealing plateSynchronous belt wheelRoller wheelSynchronous belt wheelDeep groove ball bearingSlidable connecting plateSynchronous belt wheelBevel gearBevel gear shaftCoupling devicePowder spreading rollerCross beamHigh-temperature lip-shaped sealing ringDeep groove ball bearingAnd (7) mounting a seat.

Detailed Description

In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings.

Aiming at the problems in the prior art, the invention provides a powder spreading transmission mechanism suitable for nylon rapid forming equipment, and the invention is described in detail with reference to the attached drawings 4.1 to 4.5.

The powder paving transmission mechanism suitable for the nylon rapid forming equipment adopts a powder paving translation motor and a synchronous belt transmission mechanism to drive the powder paving rollerTranslation, by means of two-stage synchronous pulleysDrive and a pair of bevel gearsDriving the powder spreading rollerIs converted into a powder spreading rollerThe self-rotation of the roller realizes the powder spreading roller in the powder spreading processThe translation and the rotation of (2) are performed synchronously.

The nylon forming system comprises main parts such as a forming cylinder, a left powder feeding cylinder, a right powder feeding cylinder, a left powder overflowing groove, a right powder overflowing groove, a powder spreading roller translation mechanism, a powder spreading roller rotation mechanism, a heating system, a forming heat preservation cavity (containing a heat preservation cover part), a laser forming system, an electric appliance control system and the like. The nylon molding condition is about 200 ℃, namely a heating system heats and molds a heat preservation cavity (containing a heat preservation cover part) to ensure the molding environment of about 200 ℃. In order to adapt to the high-temperature forming environment, the powder spreading function is realized, meanwhile, the cost is saved, the control program is simplified, and the operation is simplified, so that the powder spreading transmission mechanism is invented, and the mechanism consists of a powder spreading roller translation mechanism and a powder spreading roller rotation mechanism.

In the printing and forming process of nylon equipment, the powder spreading roller translation mechanism drivesThe powder spreading roller autorotation mechanism moves horizontally left and right, and meanwhile, the powder spreading roller in the powder spreading roller mechanismThe two actions form the powder spreading action in the whole forming process, and the powder spreading action is realized by the powder spreading transmission mechanism.

When the powder spreading translation motor works, a synchronous belt wheel transmission mechanism consisting of a synchronous belt wheel, a synchronous belt wheel support, a tensioning screw and the like is driven, and the synchronous belt clamping plateClamping the synchronous belt and then connecting the synchronous belt and the transition plateConnection, when the synchronous belt runs back and forth, the transition plateWill be at the guide rail slider assemblyThe powder spreading translation motor is continuously and repeatedly started and stopped in the process. The synchronous belt penetrates through two rollersDeep groove ball bearingAnd a synchronous pulleyBetween two rollersDeep groove ball bearingAnd synchronous pulleyUnder the clamping of the synchronous belt (c), the tooth and the synchronous belt wheel of the synchronous belt (c)Meshing, when the synchronous belt IV runs, the synchronous belt wheelSynchronous pulleys on the same shaftRotate, by means of a synchronous belt(synchronous belt)Is tensioned by a slidable connecting plateBy changing position in the chute and adjusting the position of the gearbox assembly (fig. 4.4 (a)) to tension, the connecting plate can be slidThrough the waist-shaped hole and the transition plateScrewed) to transmit rotation to the synchronous pulley of the powder spreading roller mechanismBevel gears on the same shaftRotating, bevel gear shaft meshing therewithRotated and then passed through a couplingTransmits the rotation to the powder spreading rollerRealize shop's powder rollerThe rotation of the rotor. And the installation seat of the autorotation mechanism of the powder spreading rollerAnd transition plateIs connected by screws, namely, when a powder laying translation motor works, a synchronous belt,Simultaneously drives the left and right translation of the powder spreading roller mechanism and the powder spreading rollerThe rotation of the rotor.

The working principle part is as follows: through 2 synchronous belt drive mechanisms and 1 bevel gear drive mechanism, the rotation of a common three-phase motor is converted into two motion forms of translation motion and rotation. Specifically, when a three-phase motor drives a synchronous belt transmission mechanism to operate, the translational motion of a synchronous belt is converted into the rotation of the mechanism by adding a group of synchronous belt transmission mechanisms and bevel gear transmission mechanisms.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.