阅读说明：本技术 一种用于砂型3d打印的模型清砂装置 (Model sand removing device for 3D printing of sand mold ) 是由 刘江博闻 樊一扬 于 2020-07-27 设计创作，主要内容包括：本发明适用于3D打印技术领域,提供了一种用于砂型3D打印的模型清砂装置,包括清砂柜、传动辊道和喷头安装柱,所述清砂柜上安装有水平的传动辊道,所述传动辊道用于传输砂型,所述清砂柜内设有喷头安装柱,所述喷头安装柱的至少两个面上均安装有沿其长度方向布置的旋转喷头,所述喷头安装柱与驱动机构连接并由所述驱动机构驱动,以四边形为轨迹绕所述砂型运动,所述喷头安装柱通过连接软管与外部供水机构连接,本发明的有益效果是：驱动机构可以带动喷头安装柱以四边形为轨迹运动,使得喷头安装柱上的旋转喷头可以对砂型进行全方位的喷水,以实现砂子的清理,在喷水过程中,可以旋转喷水,以实现喷洒范围的提升,更有助于砂子的彻底清理。(The invention is suitable for the technical field of 3D printing, and provides a model sand cleaning device for 3D printing of sand molds, which comprises a sand cleaning cabinet, a transmission roller way and a spray nozzle mounting column, wherein the horizontal transmission roller way is mounted on the sand cleaning cabinet and is used for transmitting sand molds, the spray nozzle mounting column is arranged in the sand cleaning cabinet, at least two surfaces of the spray nozzle mounting column are respectively provided with a rotary spray nozzle which is arranged along the length direction of the spray nozzle mounting column, the spray nozzle mounting column is connected with a driving mechanism and driven by the driving mechanism, and moves around the sand molds by taking a quadrangle as a track, and the spray nozzle mounting column is connected with an external water supply mechanism through a connecting hose, and the model sand cleaning device has the beneficial effects that: the driving mechanism can drive the nozzle mounting column to move by taking a quadrilateral as a track, so that the rotary nozzle on the nozzle mounting column can spray water to the sand mold in an all-around mode, the sand mold is cleaned, water can be sprayed in a rotary mode in the water spraying process, the spraying range is improved, and thorough cleaning of the sand mold is facilitated.)

1. The utility model provides a model sand removal device for sand mould 3D prints, includes sand removal cabinet (1), rollgang (2), rotatory nozzle (9) and shower nozzle erection column (13), its characterized in that, install horizontally rollgang (2) on sand removal cabinet (1), rollgang (2) are used for transmitting sand mould (3), be equipped with shower nozzle erection column (13) in sand removal cabinet (1), all install rotatory nozzle (9) of arranging along its length direction on at least two faces of shower nozzle erection column (13), shower nozzle erection column (13) are connected with actuating mechanism (10) and by actuating mechanism (10) drive to the quadrangle winds as the orbit sand mould (3) motion, shower nozzle erection column (13) are connected with outside water supply mechanism through coupling hose (8).

2. The model sand removing device for sand mold 3D printing according to claim 1, wherein the rotary sprayer (9) comprises a connector (901), a housing (902) and a rotary housing (904), the connector (901) is hermetically mounted on a sprayer mounting column (13) and communicated with the hollow sprayer mounting column (13), the connector (901) is further fixedly connected with the housing (902), the rotary housing (904) is mounted outside the housing (902) through a sealing bearing (907), the rotary housing (904) and the housing (902) enclose a water cavity (906), the connector (901) is communicated with the water cavity (906) through a through hole (903), a plurality of liquid outlet holes (905) are equidistantly formed in the side wall of the rotary housing (904), and the axis of each liquid outlet hole (905) is arc-shaped.

3. The model sand removing device for sand mold 3D printing according to claim 1, wherein a water collecting tank (4) is arranged at the bottom of the sand removing cabinet (1), the water collecting tank (4) is connected with the water inlet end of the high-pressure pump (5) through a water inlet pipe (6), and the water outlet end of the high-pressure pump (5) is connected with the nozzle mounting column (13) through a water outlet pipe (7).

4. A model sand removing device for sand mould 3D printing according to claim 3, characterized in that the side wall and the bottom of the water collecting tank (4) are both fixed with a partition plate (11), so that a zigzag flow channel (12) is formed between the adjacent partition plates (11), and the side wall of the water collecting tank (4) is connected with the water inlet pipe (6) at the position corresponding to the flow channel (12).

5. The model sand removing device for the sand mold 3D printing according to the claim 1, the claim 2, the claim 3 or the claim 4, wherein the driving mechanism (10) comprises a fixed cross rod (104), a movable block (107) and a sliding rod (108), the fixed cross rod (104) is fixed at the top of the sand removing cabinet (1) through a mounting seat, a sliding sleeve (106) is in sliding fit on the fixed cross rod (104), the sliding sleeve (106) is fixedly connected with the sliding rod (108), the movable block (107) is in sliding fit on the sliding rod (108), the nozzle mounting column (13) is fixedly mounted on the movable block (107), and the movable block (107) is further connected with a movable shaft (103) for driving the movable block to rotate.

6. A model sand removing device for sand mould 3D printing according to claim 5, characterized in that the end of the moving shaft (103) is hinged with a movable block (107), the moving shaft (103) is in sliding fit with a rotating block (102), and the rotating block (102) is connected with the output end of the driving motor (101).

7. A model sand removal device for sand mould 3D printing according to claim 6, characterized in that the moving shaft (103) is externally sleeved with a spring (105), and two ends of the spring (105) are respectively connected at the end steps of the rotating block (102) and the moving shaft (103).

Technical Field

The invention relates to a sand removing device, in particular to a model sand removing device for 3D printing of a sand mold.

Background

3D printing is one of rapid prototyping technologies, and is a technology for constructing an object by using a bondable material such as powdered metal or plastic and the like in a layer-by-layer printing mode on the basis of a digital model file. It has been used to manufacture models in the fields of mold manufacturing, industrial design, etc., and is now increasingly used for direct manufacture of some products. In particular, high value applications (such as hip joints or teeth, or aircraft parts) already have parts printed using this technique.

Based on the process characteristics of 3D printing, the 3D sand mold is low in strength, and a floating sand layer with the thickness of about 10mm and certain viscosity exists on the surface of the formed sand mold, so that the surface flow coating cannot be directly carried out like the traditional metal sand mold, and the sand removing and dust removing processes are required to be carried out firstly through the sand cleaning process and then the flow coating process is carried out. Then, in the prior art, the sand removing process is basically carried out manually, the labor intensity is high, and the automation degree is low.

Disclosure of Invention

The embodiment of the invention aims to provide a model sand removing device for sand mold 3D printing, and aims to solve the technical problems in the background technology.

The embodiment of the invention is realized in such a way that the model sand removing device for sand mold 3D printing comprises a sand removing cabinet, a transmission roller way, a rotary spray head and a spray head mounting column, wherein the horizontal transmission roller way is mounted on the sand removing cabinet and is used for conveying sand molds, the spray head mounting column is arranged in the sand removing cabinet, the rotary spray heads arranged along the length direction of the spray head mounting column are mounted on at least two surfaces of the spray head mounting column, the spray head mounting column is connected with a driving mechanism and driven by the driving mechanism to move around the sand molds by taking a quadrangle as a track, and the spray head mounting column is connected with an external water supply mechanism through a connecting hose.

As a further scheme of the invention: rotatory nozzle includes connector, shell and swivel housing, connector sealing mounting on the shower nozzle erection column and with hollow the shower nozzle erection column intercommunication, connector still with shell fixed connection, swivel housing passes through sealed bearing and installs the outside at the shell, just swivel housing encloses into the water cavity with the shell, the connector pass through the through-hole with the water cavity intercommunication, equidistant a plurality of liquid hole, and every of being equipped with on the lateral wall of swivel housing the axis in liquid hole is the arc.

As a still further scheme of the invention: the bottom of the sand removal cabinet is provided with a water collecting tank, the water collecting tank is connected with the water inlet end of the high-pressure pump through a water inlet pipe, and the water outlet end of the high-pressure pump is connected with the spray head mounting column through a water outlet pipe.

As a still further scheme of the invention: the side wall and the bottom of the water collecting tank are both fixed with a baffle plate, so that a zigzag flow channel is formed between the adjacent baffle plates, and the position of the side wall of the water collecting tank corresponding to the flow channel is connected with the water inlet pipe.

As a still further scheme of the invention: actuating mechanism includes fixed horizontal pole, movable block and slide bar, fixed horizontal pole passes through the mount pad to be fixed at the top of sand removal cabinet, and sliding fit has the sliding sleeve on the fixed horizontal pole, sliding sleeve and slide bar fixed connection, sliding fit has the movable block on the slide bar, shower nozzle erection column fixed mounting is on the movable block, the movable block still with be used for driving its pivoted removal hub connection.

As a still further scheme of the invention: the end part of the moving shaft is hinged with the movable block, the moving shaft is in sliding fit with the rotating block, and the rotating block is connected with the output end of the driving motor.

As a still further scheme of the invention: the outside cover of removal axle is equipped with the spring, the tip step department at turning block and removal axle is connected respectively at the both ends of spring.

Compared with the prior art, the invention has the beneficial effects that: actuating mechanism can drive the shower nozzle erection column and use the quadrangle to wind as the orbit sand mould motion for rotatory nozzle on the shower nozzle erection column can carry out the omnidirectional water spray to the sand mould, in order to realize the clearance of grit, and in this embodiment, rotatory nozzle can rotatory water spray at the water spray in-process in addition, in order to realize the promotion that sprays the scope, more helps the thorough clearance of grit, and its water can circulate simultaneously, realizes the reuse of water resource.

Drawings

Fig. 1 is a schematic structural diagram of a model sand removing device for sand mold 3D printing.

Fig. 2 is a schematic structural diagram of a rotary nozzle in a model sand removing device for sand mold 3D printing.

Fig. 3 is a schematic structural diagram of a driving mechanism in a model sand removing device for sand mold 3D printing.

Fig. 4 is a front view of a driving mechanism in a mold sand removing device for 3D printing of sand molds.

Fig. 5 is a schematic structural diagram of a water collecting tank in a model sand removing device for sand mold 3D printing.

In the drawings: 1-sand cleaning cabinet, 2-drive roller way, 3-sand mould, 4-water collecting tank, 5-high pressure pump, 6-water inlet pipe, 7-water outlet pipe, 8-connecting hose, 9-rotary spray head, 901-connecting head, 902-shell, 903-through hole, 904-rotary shell, 905-liquid outlet hole, 906-water cavity, 907-sealing bearing, 10-driving mechanism, 101-driving motor, 102-rotating block, 103-moving shaft, 104-fixed cross bar, 105-spring, 106-sliding sleeve, 107-movable block, 108-sliding bar, 11-clapboard, 12-runner and 13-spray head mounting column.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1, a structure diagram of a model sand removing device for 3D printing of a sand mold provided by an embodiment of the present invention includes a sand removing cabinet 1, a transmission roller table 2, a rotary nozzle 9 and a nozzle mounting post 13, the horizontal transmission roller table 2 is mounted on the sand removing cabinet 1, the transmission roller table 2 is used for transmitting the sand mold 3, the nozzle mounting post 13 is disposed in the sand removing cabinet 1, the rotary nozzles 9 arranged along the length direction of the nozzle mounting post 13 are mounted on at least two surfaces of the nozzle mounting post 13, the nozzle mounting post 13 is connected with a driving mechanism 10 and driven by the driving mechanism 10 to move around the sand mold 3 with a quadrilateral as a track, and the nozzle mounting post 13 is connected with an external water supply mechanism through a connection hose 8.

In practical application of the embodiment of the invention, the driving mechanism 10 can drive the nozzle mounting column 13 to move around the sand mold 3 by taking a quadrangle as a track, so that the rotary nozzle 9 on the nozzle mounting column 13 can spray water to the sand mold 3 in all directions to clean the sand, and in the embodiment, the rotary nozzle 9 can spray water in a rotary mode in the water spraying process to improve the spraying range, thereby being more beneficial to thoroughly cleaning the sand.

As shown in fig. 2, as a preferred embodiment of the present invention, the rotary sprayer 9 includes a connector 901, a housing 902 and a rotary housing 904, the connector 901 is hermetically mounted on the sprayer mounting post 13 and is communicated with the hollow sprayer mounting post 13, the connector 901 is further fixedly connected with the housing 902, the rotary housing 904 is mounted outside the housing 902 through a sealed bearing 907, the rotary housing 904 and the housing 902 enclose a water cavity 906, the connector 901 is communicated with the water cavity 906 through a through hole 903, a plurality of liquid outlet holes 905 are equidistantly arranged on a side wall of the rotary housing 904, and an axis of each liquid outlet hole 905 is arc-shaped.

In practical application, in the shower nozzle erection column 13 is sent into with water to outside water supply mechanism to enter into the water cavity 906 that rotatory shell 904 and shell 902 surround through connector 901, later enter into and go out spout in liquid hole 905, in this embodiment, the axis of going out liquid hole 905 is the arc, means that liquid hole 905 is crooked, and when going out the outside blowout rivers of liquid hole 905, under reaction force, rotatory shell 904 can take place to rotate, in order to promote the sand removal effect.

As shown in fig. 1 and 5, as another preferred embodiment of the present invention, a water collecting tank 4 is provided at the bottom of the sand-cleaning tank 1, the water collecting tank 4 is connected to the water inlet end of a high-pressure pump 5 through a water inlet pipe 6, and the water outlet end of the high-pressure pump 5 is connected to the nozzle mounting column 13 through a water outlet pipe 7.

In the embodiment of the invention, the water collecting tank 4 is positioned below the transmission roller table 2, so that sand-water mixture after sand cleaning can fall into the water collecting tank 4 for collection, and the water resource can be recycled.

As shown in fig. 5, as another preferred embodiment of the present invention, partition plates 11 are fixed to the side walls and the bottom of the water collecting tank 4, so that a zigzag flow channel 12 is formed between the adjacent partition plates 11, and the side walls of the water collecting tank 4 are connected to the water inlet pipe 6 at positions corresponding to the flow channel 12.

In the embodiment of the invention, the partition plate 11 can block the sand, particularly, under the condition that the sand is easy to settle in water, supernatant in the water collection tank 4 can overflow into the flow channel 12 and finally supply water to the high-pressure pump 5, so that the problem that the rotary spray head 9 is blocked due to the sand mixed in the rotary spray head 9 is prevented.

As shown in fig. 3 to 4, as another preferred embodiment of the present invention, the driving mechanism 10 includes a fixed cross bar 104, a movable block 107 and a sliding rod 108, the fixed cross bar 104 is fixed on the top of the sand cleaning cabinet 1 through a mounting seat, a sliding sleeve 106 is slidably fitted on the fixed cross bar 104, the sliding sleeve 106 is fixedly connected with the sliding rod 108, the movable block 107 is slidably fitted on the sliding rod 108, the nozzle mounting column 13 is fixedly mounted on the movable block 107, and the movable block 107 is further connected with a movable shaft 103 for driving the movable block 107 to rotate.

In the embodiment of the present invention, when the moving shaft 103 drives the movable block 107 to rotate, the movable block 107 is limited by the sliding rod 108, and moves upwards along the sliding rod 108 until it moves to the top end of the sliding rod 108, at this time, the sliding rod 108 and the movable block 107 are located at the relative dead point position, then the sliding sleeve 106 moves along the fixed cross rod 104, and continues to drive the sliding rod 108 and the movable block 107 to move synchronously with each other, when the sliding sleeve 106 moves to the end position of the fixed cross rod 104, the sliding sleeve 106 is located at the relative dead point position again, then, the movable block 107 moves downwards along the sliding rod 108, when the movable block 107 moves to the bottom end position of the sliding rod 108, the movable block 107 is located at the relative dead point position again, the sliding sleeve 106 starts to slide relative to the fixed cross rod 104, and so reciprocating, the nozzle mounting column 13 forms a motion with a rectangular track.

As shown in fig. 3 to 4, as another preferred embodiment of the present invention, an end of the moving shaft 103 is hinged to the movable block 107, the moving shaft 103 is slidably engaged with the rotating block 102, and the rotating block 102 is connected to an output end of the driving motor 101.

In the embodiment of the present invention, when the driving motor 101 outputs power, it will drive the rotation block 102 to rotate, because the distance between the moving shaft 103 and the fixed cross bar 104 and the sliding rod 108 is changed, the moving shaft 103 is in sliding fit with the rotation block 102, and preferably, a spring 105 is sleeved outside the moving shaft 103, and two ends of the spring 105 are respectively connected to the steps at the ends of the rotation block 102 and the moving shaft 103.

With the above embodiments, it is easy to understand that the working principle of the present invention is: when the driving motor 101 outputs power, it will drive the rotation block 102 to rotate, when the moving shaft 103 sliding-fit with the rotation block 102 drives the moving block 107 to rotate, limited by the sliding rod 108, the moving block 107 will move upwards along the sliding rod 108 until it moves to the top end of the sliding rod 108, at this time, the sliding rod 108 and the moving block 107 are at the relative dead point position, then the sliding sleeve 106 will move along the fixed cross rod 104, continue to drive the sliding rod 108 and the moving block 107 to move synchronously therewith, when the sliding sleeve 106 moves to the end position of the fixed cross rod 104, the sliding sleeve 106 is at the relative dead point position again, then the moving block 107 moves downwards along the sliding rod 108, when the moving block 107 moves to the bottom end position of the sliding rod 108, the moving block 107 is at the relative dead point position again, the sliding sleeve 106 starts to slide relative to the fixed cross rod 104, so as to and fro, the nozzle mounting column 13 forms a motion, during the movement of the nozzle mounting column 13, water enters the water cavity 906 enclosed by the rotary casing 904 and the casing 902 through the connector 901, then enters the liquid outlet hole 905 and is sprayed out, when the liquid outlet hole 905 sprays out water flow, under the reaction force, the rotary shell 904 can rotate and spray water in a rotating way, so that the spraying range is lifted, the complete cleaning of sand is facilitated, the sand-water mixture after the sand cleaning can fall into the water collecting tank 4 for collection, in the water collecting tank 4, the arrangement of the partition plate 11 can play a role of blocking the entering of sand, particularly under the condition that the sand is easy to settle in water, the supernatant in the header tank 4 may overflow into the flow channel 12, and finally supply water to the high-pressure pump 5, so as to prevent the rotary nozzle 9 from being blocked due to the sand mixed in the rotary nozzle 9 and realize the reutilization of water resources.

The embodiment of the invention provides a model sand cleaning device for 3D printing of a sand mold, wherein a driving mechanism 10 can drive a spray nozzle mounting column 13 to move around the sand mold 3 by taking a quadrangle as a track, so that a rotary spray nozzle 9 on the spray nozzle mounting column 13 can spray water to the sand mold 3 in all directions to clean the sand, and in the embodiment, the rotary spray nozzle 9 can spray water in a rotary mode in the water spraying process to improve the spraying range, thereby being more beneficial to thorough cleaning of the sand, and meanwhile, water can be recycled to realize recycling of water resources.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.