CN111217285A

CN111217285A - Handling device suitable for 3D prints concrete model

Info

Publication number: CN111217285A
Application number: CN202010049617.8A
Authority: CN
Inventors: 马国伟; 王里
Original assignee: Hebei University of Technology
Current assignee: Hebei University of Technology
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-06-02

Abstract

The utility model provides a handling device suitable for 3D prints concrete model includes: the lower part of the underframe is provided with a plurality of trundles; elevating system includes: the hydraulic mechanism is arranged on the underframe, and the lifting fork arm is driven by the hydraulic mechanism to ascend or descend; the top frame is fixed above the lifting fork arm; the roller frame is arranged above the top frame, a plurality of cylindrical rollers are arranged on the inner side of the roller frame, at least one roller is a driving roller, and the driving roller can actively rotate clockwise or anticlockwise so as to pull in or push out the sliding platform on the driving roller. This openly can be through mechanical force with carrying on the sliding platform who prints the product transfers to the handling device from building 3D printer, can realize the transfer of heavier product on the one hand, and on the other hand has still strengthened the stationarity of handling.

Description

Handling device suitable for 3D prints concrete model

Technical Field

The utility model relates to an electromechanical device and building 3D print technical field, especially relate to a handling device suitable for 3D prints concrete model, its typical scene of being applied to building 3D and printing the quick transport of component.

Background

The 3D Printing technology (3D Printing, 3DP for short) appeared in the middle of the 90 s of the 20 th century, and its working principle is to superpose "printed materials" layer by layer through computer control, so as to transform the blueprints on the computer into physical products.

The building 3D printing technology is a novel application developed on the basis of Fused Deposition Modeling (FDM for short), and the principle is that three-dimensional slicing software is used for slicing and layering a three-dimensional model of a building component to generate a printer motion code, then a three-coordinate mobile platform of a printer is used for driving an extruder to extrude cement mortar layer by layer, and the building component or the whole building with practical functions is formed by stacking for many times.

In carrying out the present disclosure, the applicant has found that the following technical problems exist in the current conveying device when applied to the conveying of concrete 3D printing members:

(1) because the building 3D printing component is heavy, the building 3D printing component is difficult to push to a carrying device only by manpower;

(2) because the components which are just printed are often not completely molded and reach the standard strength, the final product quality can be influenced by shaking or jolting in the carrying process;

(3) for concrete 3D printing sites, which are usually narrow, the handling device often cannot be completely aligned with the machine table of the 3D printer, in which case fine adjustment of the direction is necessary.

BRIEF SUMMARY OF THE PRESENT DISCLOSURE

Technical problem to be solved

The present disclosure provides a handling device suitable for 3D printing of concrete models to at least partially address the above-presented drawbacks.

(II) technical scheme

The utility model provides a handling device suitable for 3D prints concrete model includes: the lower part of the underframe is provided with a plurality of trundles; elevating system includes: the hydraulic mechanism is arranged on the underframe, and the lifting fork arm is driven by the hydraulic mechanism to ascend or descend; the top frame is fixed above the lifting fork arm; the roller frame is arranged above the top frame, a plurality of cylindrical rollers are arranged on the inner side of the roller frame, at least one roller is a driving roller, and the driving roller can actively rotate clockwise or anticlockwise so as to pull in or push out the sliding platform on the driving roller.

In some embodiments of the present disclosure, the driving roller is driven by a motor, and is the first or second roller farthest from the carrier.

In some embodiments of the present disclosure, for the drive roller: the outer diameter of the roller is 2 mm-5 mm larger than other rollers in the roller set; or the installation position of the roller on the top frame is 2 mm-5 mm higher than other rollers in the roller set.

In some embodiments of the present disclosure, the drive roller has one or more gears; and a gear track meshed with the gear is arranged on the back of the sliding platform.

In some embodiments of the present disclosure, the outer side of the roller is sleeved with a buffer ring made of foam or rubber.

In some embodiments of the present disclosure, further comprising: a translation mechanism; this translation mechanism includes: the linear sliding rail, the ball screw and the fine adjustment handle; the linear slide rail is fixed on the top frame and is arranged in a manner of being matched with the slide seat below the roller wheel frame; the ball screw is arranged on one side of the top frame close to the carrying personnel and matched with a screw nut below the roller wheel frame; the fine adjustment handle is arranged on the side face of the top frame and drives the ball screw to rotate, so that the roller wheel frame is pushed to move left and right along the linear sliding rail.

In some embodiments of the present disclosure, further comprising; and the positioning pins are arranged on one side of the roller wheel frame, which is far away from the carrying personnel, and are used for fixing the sliding platform on the roller wheel frame.

In some embodiments of this disclosure, the locating pin is two, and the bilateral symmetry sets up in the side that the running roller frame is kept away from the transport personnel.

In some embodiments of the present disclosure, the lifting yoke is a vertical lift type lifting yoke.

In some embodiments of the present disclosure, the hydraulic cylinder of the hydraulic mechanism is installed at the middle position of the bottom plate, and the installation direction of the hydraulic cylinder forms an included angle of 45 degrees with the horizontal direction; the piston rod is hinged and fixed at the middle position of the lifting fork arm, and the installation direction of the piston rod forms a 225-degree angle with the horizontal direction.

(III) advantageous effects

According to the technical scheme, the method has at least one of the following beneficial effects:

(1) the electric power assisting device is added, the sliding platform carrying the printed products can be transferred to the carrying device from the building 3D printer through mechanical force, on one hand, the transfer of heavier products can be realized, and on the other hand, the stability of the carrying process is also enhanced.

(2) Increased the buffering circle in the outside of running roller, increased running roller and upper end slide bracket's frictional force on the one hand, on the other hand has still alleviated the vibration of transfer in-process, prevents that the vibration from causing the damage to 3D printing product.

(3) The position fine adjustment function is added, and even if the transfer device cannot be completely aligned with the 3D printer, the position fine adjustment can be carried out through the translation mechanism, and the sliding platform is rotated to the correct direction.

Drawings

Fig. 1 is a perspective view of a conveying device according to an embodiment of the disclosure.

Fig. 2 is a schematic view of a roller frame and rollers in the conveying device shown in fig. 1.

Fig. 3 is a schematic view of the top frame, the slide rail, the ball screw and the fine adjustment handle of the carrying device shown in fig. 1.

Fig. 4A and 4B are a front view and a side view of the carrying device shown in fig. 1.

[ description of main reference numerals in the drawings ] of the embodiments of the present disclosure

100-a chassis; 111-casters;

210-a hydraulic mechanism; 220-lifting yoke;

211-hydraulic cylinders of the hydraulic mechanism; 212 — piston rod of hydraulic mechanism;

300-a top frame; 311. 312-linear slide rail;

321-a ball screw; 322-fine tuning the handle;

400-roller frame; 411-driving roller; 420-a motor;

421-chain 431-locating pin;

500-sliding platform.

Detailed Description

The utility model provides a handling device who is applicable to 3D and prints concrete model with electronic helping hand and position fine-tuning function can realize that 3D prints convenience, steady, the safe product of transferring to other positions from the 3D printer.

For the purpose of promoting a better understanding of the objects, aspects and advantages of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.

In one exemplary embodiment of the present disclosure, a handling device suitable for 3D printing of concrete models is provided. Fig. 1 is a perspective view of a conveying device according to an embodiment of the disclosure. Fig. 2 is a schematic view of a roller frame and rollers in the conveying device shown in fig. 1. Fig. 3 is a schematic view of the top frame, the slide rail, the ball screw and the fine adjustment handle of the carrying device shown in fig. 1. As shown in fig. 1 to 3, the carrying device of the present embodiment includes:

a base frame 100 having a plurality of casters 111 at a lower portion thereof to allow the transfer device to move on the floor;

elevating system includes: a hydraulic mechanism 210, and a lifting yoke 220 which is arranged on the underframe and is driven to ascend or descend by the hydraulic mechanism;

a top frame 300 fixed above the lifting yoke;

the roller frame 400 is disposed above the top frame, and a plurality of cylindrical rollers are disposed inside the roller frame, wherein at least one roller is a driving roller 411 which can actively rotate clockwise or counterclockwise, so as to pull in or push out the sliding platform 500 thereon.

The respective components of the carrying device of the present embodiment will be described in detail below.

Referring to fig. 2, in the embodiment, the driving roller is driven by a motor 420 and is one or more of the rollers at the side far from the carrier. Preferably, the driving roller is the first or the second roller which is farthest away from the carrying personnel, and the outer diameter of the driving roller is 2 mm-5 mm larger than that of other rollers in the roller set or the installation position of the driving roller on the top frame is 2 mm-5 mm higher than that of other rollers in the roller set.

Wherein, this initiative running roller can be when the sliding platform falls onto it to connect the material sliding platform to exert the frictional force far away from or be close to handling device to shift sliding platform steadily. The radius of the driving roller is increased or the installation position is increased, so that the friction force of the driving roller can be better applied to the sliding platform. Compare in the manpower transport, so transport mode is more laborsaving, and is more steady, can reduce the harm to printing the work for final fashioned 3D in the minimum.

In another embodiment of the present disclosure, the drive roller has one or more gears. A gear track meshed with the gear is arranged on the back of the sliding platform. In the use, as long as with the gear track on the sliding platform with the gear engagement on the initiative running roller, start motor 420, can transfer sliding platform and the 3D who is located on it and print on the conveyer.

It should be noted that the present disclosure does not adopt the conventional conveying manner of the conveyor belt, because the 3D printing work for buildings is generally heavy, and the conveyor belt does not have enough friction force and may slip. Experiments prove that the driving roller is provided with the gear, the back of the sliding platform is provided with the track, and therefore enough pulling force can be provided, and the building printing works on the driving roller can be pulled.

In addition, a driving motor is arranged on the bottom frame, and a driving shaft of the driving motor and the driving roller are in transmission in a chain connection mode.

In this embodiment, in order to prevent the sliding platform and the 3D printed product thereon from being affected due to jolt, a buffer ring made of foam or rubber is sleeved on the roller of the caster set.

In addition, in order to fix the position of the sliding platform on the conveying device, a positioning pin 431 is further provided on the side of the roller frame away from the conveying person, so that the sliding platform (including the 3D printed product thereon) can be kept relatively fixed with the position of the top frame after the sliding platform is transferred onto the conveying device together with the 3D printed product thereon. It will be appreciated by those skilled in the art that the number of the positioning pins can be set as desired.

Referring to fig. 3, the carrying device of this embodiment further includes a translation mechanism capable of translating the roller set left and right. This translation mechanism includes: 2 linear slide rails (311, 312), a ball screw 321 and a fine adjustment handle 322. 2 linear sliding rails are fixed on the top frame 300. And two sliding seats are matched with each linear sliding rail below the roller wheel frame. The ball screw is arranged on one side of the top frame close to the carrying personnel and is matched with a screw nut below the roller wheel frame. The fine adjustment handle is arranged on the side face of the top frame and drives the ball screw to rotate, so that the roller wheel frame is pushed to move left and right along the two linear sliding rails. Therefore, even if the transfer device cannot be completely aligned with the 3D printer, the sliding platform can be rotated to the correct direction through the translation mechanism, and the roller set is aligned with the printing nozzle roller set.

Fig. 4A and 4B are a front view and a side view of the carrying device shown in fig. 1. As shown in fig. 4A and 4B, in the present embodiment, the lifting yoke 220 is a vertical lifting type lifting yoke, and the hydraulic cylinder 211 of the hydraulic mechanism is installed at the middle position of the bottom plate, and the installation direction thereof forms an angle of 45 ° with the horizontal; the piston rod 212 is hinged and fixed at the middle position of the lifting fork arm, and the installation direction of the piston rod forms a 225-degree angle with the horizontal direction. When the hydraulic cylinder is started in the hydraulic station, the piston rod extends out, so that the lifting fork arm jacks up the sliding platform. When the hydraulic cylinder is decompressed at the hydraulic station, the piston rod retracts, so that the lifting fork arm lowers the sliding platform. The opening amplitude of the oil source system loop is controlled, so that the sliding platform can rise and fall stably.

So far, the embodiments of the present disclosure have been described in detail with reference to the accompanying drawings. It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Furthermore, the above definitions of the various elements and methods are not limited to the particular structures, shapes or arrangements of parts mentioned in the examples, which may be easily modified or substituted by one of ordinary skill in the art, for example:

(1) the welding connection can also adopt other connection forms such as bolt connection and the like;

(2) the hydraulic lifting can also adopt other lifting modes such as air pressure and the like;

from the above description, a person skilled in the art should have a clear understanding of the present disclosure as applied to a handling device for 3D printing concrete models.

In summary, the present disclosure provides a conveying device suitable for 3D printing of a concrete model, which is typically applied in a scene of rapid conveying of a concrete 3D printing member, and adopts a hydraulic structure design, so that the bearing capacity is large; the use is simple and convenient, and the operation can be carried out by one person; the design that the initiative running roller increased the cushion collar simultaneously fully avoids the disturbance to the not fully concrete that condenses to can realize that desktop formula concrete 3D prints works in convenient transport and the removal in restricted place, have better practical value, can promote the faster popularization of building 3D printing technique.

It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", and the like, used in the embodiments are only directions referring to the drawings, and are not intended to limit the scope of the present disclosure. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present disclosure.

And the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present disclosure. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

The use of ordinal numbers such as "first," "second," "third," etc., in the specification and claims to modify a corresponding element does not by itself connote any ordinal number of the element or any ordering of one element from another or the order of manufacture, and the use of the ordinal numbers is only used to distinguish one element having a certain name from another element having a same name.

Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.

In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.

The above-mentioned embodiments are intended to illustrate the objects, aspects and advantages of the present disclosure in further detail, and it should be understood that the above-mentioned embodiments are only illustrative of the present disclosure and are not intended to limit the present disclosure, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.

Claims

1. A handling device suitable for 3D printing of concrete models, comprising:

the lower part of the underframe is provided with a plurality of trundles;

elevating system includes: the hydraulic mechanism is arranged on the underframe, and the lifting fork arm is driven by the hydraulic mechanism to ascend or descend;

the top frame is fixed above the lifting fork arm;

the roller frame is arranged above the top frame, a plurality of cylindrical rollers are arranged on the inner side of the roller frame, at least one roller is a driving roller, and the driving roller can actively rotate clockwise or anticlockwise so as to pull in or push out the sliding platform on the driving roller.

2. The carrier device as claimed in claim 1, wherein the driving roller is driven by a motor and is the first or second roller which is farthest from the carrier.

3. The handling apparatus of claim 1, wherein for the drive roller:

the outer diameter of the roller is 2 mm-5 mm larger than other rollers in the roller set; or

The installation position of the roller is 2 mm-5 mm higher than other rollers in the roller set.

4. The transfer device of claim 1, wherein the drive roller has one or more gears; and a gear track meshed with the gear is arranged on the back of the sliding platform.

5. The conveying apparatus as claimed in claim 1, wherein the outside of the roller is covered with a cushion ring made of foam or rubber.

6. The handling device of claim 1, further comprising: a translation mechanism; this translation mechanism includes: the linear sliding rail, the ball screw and the fine adjustment handle;

the linear slide rail is fixed on the top frame and is arranged in a manner of being matched with the slide seat below the roller wheel frame; the ball screw is arranged on one side of the top frame close to the carrying personnel and matched with a screw nut below the roller wheel frame; the fine adjustment handle is arranged on the side face of the top frame and drives the ball screw to rotate, and therefore the roller wheel frame is pushed to move left and right along the linear sliding rail.

7. The handling device of any of claims 1 to 6, further comprising;

and the positioning pins are arranged on one side of the roller wheel frame, which is far away from the carrying personnel, and are used for fixing the sliding platform on the roller wheel frame.

8. The conveying apparatus according to claim 7, wherein the two positioning pins are symmetrically arranged on the side of the roller frame away from the conveying person.

9. The handling device according to any of claims 1 to 6, wherein the lifting yoke is of the vertical lift type.

10. The carrying device according to any one of claims 1 to 6, wherein the hydraulic cylinder of the hydraulic mechanism is mounted at a middle position of the bottom plate, and the mounting direction of the hydraulic cylinder is 45 degrees from the horizontal; the piston rod is hinged and fixed at the middle position of the lifting fork arm, and the installation direction of the piston rod forms a 225-degree angle with the horizontal direction.