Bridge embedded part preparation device and preparation method thereof

Abstract

The application discloses a bridge embedded part preparation device and a preparation method thereof, and belongs to the technical field of bridge embedded part preparation devices. The bridge embedded part preparation device comprises a 3D metal printing mechanism and a bridge embedded part mold mechanism. The 3D metal printing mechanism comprises a plurality of support rods and a connecting frame arranged on one side of adjacent support rods. The top of each support rod is provided with an X-axis moving assembly for providing X-axis direction movement during printing. Y-axis moving assemblies are arranged between adjacent X-axis moving assemblies for providing Y-axis direction movement during printing. The bridge embedded part is cast by combining the 3D metal printing mechanism and the bridge embedded part mold mechanism. The plurality of bending parts of the bridge embedded part do not need to be manufactured in sections during preparation, and the effect of integral molding can be achieved. The interface or connecting point in welding or bolt connection can be eliminated, thereby improving the sealing performance, strength and reliability of the product and reducing the unfirmness or fatigue problems caused by the interface or connecting point.

Description

Technical Field

[0001] This invention relates to the field of cable tray embedded parts technology, and in particular to a cable tray embedded parts preparation device and preparation method. Background Technology

[0002] Cable trays are classified into trough type, tray type, ladder type, and mesh type structures, and consist of supports, brackets, and installation accessories. Cable trays inside buildings can be installed independently or laid on various building and pipe rack supports. They should be characterized by simple structure, beautiful appearance, flexible configuration, and convenient maintenance. All parts must be galvanized. For cable trays installed outdoors, in order to improve stability, embedded parts can be installed in the building components before assembling the cable tray with the embedded parts.

[0003] The cross-sectional shape of existing cable tray embedded parts is usually U-shaped or C-shaped, and cable tray embedded parts often have multiple bends. They are often manufactured in sections and then connected by bolts or welding. However, bolting or welding can easily lead to low sealing performance and poor compressive strength. When only mold casting is used for manufacturing, the U-shaped and C-shaped structures can easily cause difficulties in demolding.

[0004] Therefore, it is necessary to improve the existing methods for preparing embedded parts for cable trays in order to solve the above problems. Summary of the Invention

[0005] This invention overcomes the shortcomings of the prior art and provides a device and method for preparing embedded parts for cable trays.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a method for preparing embedded parts for cable trays, comprising the following steps:

[0007] S1. Import the 3D model of the prefabricated cable tray embedded part into the slicing software in the controller. The slicing software cuts the model into multiple thin slices and generates the printing path and parameters for each slice. During printing, the metal powder is sprayed layer by layer onto the printing plane through the printing nozzle to form a thin layer. Then, the printing nozzle uses a laser beam or electron beam to melt the metal powder and bond it together. The printing process is repeated until the entire prefabricated cable tray embedded part is printed.

[0008] S2. The fixed mold part consists of a female mold, a female mold forming cavity, and a locking block. The moving mold part consists of a male mold, a male mold forming cavity, and a locking groove. Through the cooperation of the positioning blocks and several support heads inside the male mold forming cavity and the female mold forming cavity, the prefabricated cable tray embedded part is locked inside the male mold forming cavity and the female mold forming cavity. After the locking block is locked in the locking groove, the injection molding machine flows the molten material from the main channel into several branch channels in sequence. Then, the molten material is injected into the female mold forming cavity through the injection point to cooperate with the male mold forming cavity for molding, thereby thickening the outer layer of the prefabricated cable tray embedded part.

[0009] S3. After the prefabricated cable tray embedded part, which has been thickened in the cavity, has cooled and solidified, the mold is opened and the cable tray embedded part is taken out. After removing the burrs, the preparation of the one-piece molded cable tray embedded part is completed.

[0010] In a preferred embodiment of the present invention, in step S1, a 3D model of the cable tray embedded part is created using computer-aided design software. The 3D model of the cable tray embedded part includes the geometry and structure of the cable tray embedded part.

[0011] Based on the 3D model of the cable tray embedded parts, computer-aided design software is used to reduce the thickness of the 3D model of the cable tray embedded parts to 1-3 mm, thus completing the creation of the 3D model of the prefabricated cable tray embedded parts.

[0012] In a preferred embodiment of the present invention, in step S1, during the printing process, the controller controls the X-axis moving component, the Y-axis moving component and the Z-axis moving component to move the print head in three directions.

[0013] A device for preparing embedded parts for cable trays includes: a 3D metal printing mechanism and a mold mechanism for embedded parts for cable trays;

[0014] The 3D metal printing mechanism includes: a plurality of support rods and a connecting frame disposed on one side of adjacent support rods, and a printing stage disposed between the plurality of support rods near the bottom; the top of the plurality of support rods is provided with a plurality of X-axis moving components for providing X-axis movement during printing, a Y-axis moving component for providing Y-axis movement during printing is disposed between adjacent X-axis moving components, and a Z-axis moving component for providing Z-axis movement during printing is disposed on one side of the Y-axis moving component;

[0015] A plurality of fixing rings are provided on one side of the Z-axis moving assembly, and a printing nozzle is fixed on the inner side of the plurality of fixing rings.

[0016] The cable tray embedded part mold includes: a male mold and a female mold disposed on one side of the male mold; the male mold has a male mold forming cavity on the side facing the female mold, and the female mold has a female mold forming cavity on the side facing the male mold; prefabricated cable tray embedded parts are disposed inside the male mold forming cavity and the female mold forming cavity.

[0017] Both the male mold forming cavity and the female mold forming cavity have a positioning block and several support heads fixed on one side inside. The support heads are evenly fixed on the side of the positioning block in a circumferential array. The distance from the middle of the positioning block to one end of the support head is the same as the distance from the middle of the prefabricated cable tray embedded part to the inner wall.

[0018] In a preferred embodiment of the present invention, the X-axis moving assembly includes: an X-axis fixing plate disposed on the top of the support rod, X-axis connecting plates disposed on both sides of the X-axis fixing plate, and a plurality of first slide rails fixed on one side of the X-axis fixing plate; an X-axis servo motor is disposed on one side of the X-axis connecting plate, and a first threaded screw is disposed at the output end of the X-axis servo motor.

[0019] A Y-axis connecting plate is provided on one side of the first slide rail. A plurality of first sliders and first moving blocks are fixed on the side of the Y-axis connecting plate facing the first slide rail. The plurality of first sliders are snapped into the inner side of the plurality of first slide rails. The inner side of the first moving block is threadedly connected to the side of the first threaded rod.

[0020] In a preferred embodiment of the present invention, the Y-axis moving assembly includes: a Y-axis fixing plate disposed on one side of the Y-axis connecting plate, a plurality of second slide rails fixed on one side of the Y-axis fixing plate, and a Y-axis servo motor disposed on the other side of the Y-axis connecting plate; the output end of the Y-axis servo motor is provided with a second threaded screw.

[0021] A Z-axis fixing plate is provided on one side of the second slide rail. A plurality of second sliders and a second moving block are fixed on the side of the Z-axis fixing plate facing the second slide rail. The plurality of second sliders are snapped into the inner side of the plurality of second slide rails. The inner side of the second moving block is threadedly connected to the side of the second threaded rod.

[0022] In a preferred embodiment of the present invention, the Z-axis moving assembly includes: Z-axis connecting plates disposed on both sides of the Z-axis fixed plate, a plurality of third slide rails fixed on one side of the Z-axis connecting plate, and a Z-axis servo motor disposed on one side of the Z-axis connecting plate; the output end of the Z-axis servo motor is provided with a third threaded screw.

[0023] A Z-axis moving plate is provided on one side of the third slide rail. Several third sliders and third moving blocks are fixed on the side of the Z-axis moving plate facing the third slide rail. Several third sliders are snapped into the inner side of several third slide rails. The inner side of the third moving block is threaded to the side of the third threaded rod. The other side of the Z-axis moving plate is fixedly connected to one side of several fixed rings.

[0024] In a preferred embodiment of the present invention, a controller is provided on one side of the support rod, and the controller is electrically connected to the X-axis servo motor, the Y-axis servo motor, the Z-axis servo motor and the print head respectively.

[0025] In a preferred embodiment of the present invention, the master mold is provided with a main runner, several branch runners and a glue injection point on one side.

[0026] In a preferred embodiment of the present invention, the male mold has a plurality of slots on the side facing the female mold, and the female mold has a plurality of blocks fixed on the side facing the male mold, wherein the slots and the blocks are the same size.

[0027] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0028] (1) The present invention provides a device and method for preparing cable tray embedded parts. By combining a 3D metal printing mechanism and a cable tray embedded part mold mechanism to cast the cable tray embedded parts, it is not necessary to manufacture the multiple bends of the cable tray embedded parts in sections during preparation, so as to achieve the effect of integral molding. This can eliminate the interface or connection point in welding or bolt connection, thereby improving the sealing, strength and reliability of the product, and reducing the problems of instability or fatigue caused by interface or connection point.

[0029] (2) In this invention, by importing the 3D model of the prefabricated cable tray embedded part into the controller, the prefabricated cable tray embedded part is prepared. The frame of the cable tray embedded part with the cross-sectional shape of U-shape or C-shape can be prepared. Then, when the thickening is carried out by mold casting in the later stage, it is not necessary to cast the hollow part inside, thereby avoiding the situation that it is difficult to demold when using mold casting in the prior art.

[0030] (3) In this invention, positioning blocks are fixed on one side of both the male mold forming cavity and the female mold forming cavity, and several support heads are uniformly fixed on the side of the positioning blocks in a circumferential array. When the distance from the middle of the positioning block to one end of the support head is the same as the distance from the middle of the prefabricated cable tray embedded part to the inner wall, when the prefabricated cable tray embedded part is thickened using a mold, it can play a limiting and fixing role, thereby preventing the side of the prefabricated cable tray embedded part from contacting the inner wall of the male mold forming cavity or the inner wall of the female mold forming cavity, and avoiding the occurrence of uneven thickening of the side of the prefabricated cable tray embedded part. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a three-dimensional structural diagram of a 3D metal printing mechanism according to a preferred embodiment of the present invention;

[0033] Figure 2 This is a partial enlarged view of the 3D metal printing mechanism according to a preferred embodiment of the present invention.

[0034] Figure 3 This is a partial cross-sectional side view of the 3D metal printing mechanism according to a preferred embodiment of the present invention, and a partially enlarged view thereof;

[0035] Figure 4 This is a partial enlarged view of the 3D metal printing mechanism according to a preferred embodiment of the present invention.

[0036] Figure 5 This is a three-dimensional exploded view and a partial enlarged view of the cable tray embedded part mold mechanism according to a preferred embodiment of the present invention;

[0037] Figure 6 This is an exploded three-dimensional structural diagram of the cable tray embedded part mold mechanism according to a preferred embodiment of the present invention;

[0038] In the diagram: 1. Support rod; 11. Connecting frame; 12. Printing table; 2. Fixing ring; 21. Printing nozzle; 3. Male mold; 31. Female mold; 32. Prefabricated cable tray embedded part; 33. Male mold forming cavity; 34. Female mold forming cavity; 35. Positioning block; 36. Support head; 37. Slot; 38. Locking block; 4. X-axis fixing plate; 41. X-axis connecting plate; 42. First slide rail; 43. X-axis servo motor; 44. First threaded screw; 45. Y 46. ​​First slider; 47. First moving block; 5. Y-axis fixed plate; 51. Second slide rail; 52. Y-axis servo motor; 53. Second threaded screw; 54. Z-axis fixed plate; 55. Second slider; 56. Second moving block; 6. Z-axis connecting plate; 61. Third slide rail; 62. Z-axis servo motor; 63. Third threaded screw; 64. Z-axis moving plate; 65. Third slider; 66. Third moving block; 7. Controller. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0041] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0043] like Figure 1 , Figure 2 and Figure 3 As shown, a cable tray embedded part preparation device includes: a 3D metal printing mechanism and a cable tray embedded part mold mechanism.

[0044] The 3D metal printing mechanism includes: several support rods 1 and connecting frames 11 disposed on one side of adjacent support rods 1, and a printing stage 12 disposed between the several support rods 1 near the bottom; several X-axis moving components are disposed on the top of the several support rods 1, and the X-axis moving components include: an X-axis fixing plate 4 disposed on the top of the support rods 1, X-axis connecting plates 41 disposed on both sides of the X-axis fixing plate 4, and several first slide rails 42 fixed on one side of the X-axis fixing plate 4; an X-axis servo motor 43 is disposed on one side of the X-axis connecting plate 41, and a first threaded screw 44 is disposed at the output end of the X-axis servo motor 43. The first threaded screw 44 is located between adjacent first slide rails 42, and both ends of the first threaded screw 44 are rotatably connected to the inner side of the X-axis connecting plates 41 on both sides of the X-axis fixing plate 4.

[0045] A Y-axis connecting plate 45 is provided on one side of the first slide rail 42. Several first sliders 46 and first moving blocks 47 are fixed on the side of the Y-axis connecting plate 45 facing the first slide rail 42. The number of first sliders 46 is the same as the number of first slide rails 42. The first sliders 46 are snapped into the inner side of the first slide rails 42. The inner side of the first moving block 47 is threadedly connected to the side of the first threaded rod.

[0046] A Y-axis moving component is provided between adjacent X-axis moving components for providing Y-axis movement during printing. A Z-axis moving component is provided on one side of the Y-axis moving component for providing Z-axis movement during printing. A plurality of fixing rings 2 are provided on one side of the Z-axis moving component, and a print head 21 is fixed inside the plurality of fixing rings 2.

[0047] A controller 7 is provided on one side of the support rod 1. The controller 7 is electrically connected to the X-axis servo motor 43, the Y-axis servo motor 52, the Z-axis servo motor 62 and the print head 21.

[0048] It should be noted that the controller 7 includes slicing software. After the 3D model of the prefabricated cable tray embedded part is imported into the slicing software, the slicing software cuts the model into multiple thin slices and generates the printing path and parameters for each thin slice. During printing, the controller 7 controls the start of the X-axis servo motor 43, Y-axis servo motor 52 and Z-axis servo motor 62, and controls the printing nozzle 21 to spray metal powder and melt the metal powder with a laser beam or electron beam. The controller 7 controls the start of the X-axis servo motor 43, which can drive the first threaded screw 44 to rotate. The first moving block 47 is threadedly connected to the side of the first threaded screw 44. The first moving block 47 can then drive the Y-axis fixed plate 5 to move along the length of the first threaded screw 44 in the X-axis direction. At the same time, several first sliders 46 on one side of the Y-axis fixed plate 5 will slide and limit along the inner side of several first slide rails 42. While moving, the Y-axis moving component, the Z-axis moving component and the printing nozzle 21 move synchronously.

[0049] like Figure 2 and Figure 3 As shown, the Y-axis moving assembly includes: a Y-axis fixing plate 5 disposed on one side of the Y-axis connecting plate 45, a plurality of second slide rails 51 fixed on one side of the Y-axis fixing plate 5, and a Y-axis servo motor 52 disposed on the other side of the Y-axis connecting plate 45; the output end of the Y-axis servo motor 52 is provided with a second threaded screw 53, the second threaded screw 53 is located between adjacent second slide rails 51, and the two ends of the second threaded screw 53 are rotatably connected to the inner side of the Y-axis connecting plate 45 on both sides of the Y-axis fixing plate 5;

[0050] A Z-axis fixing plate 54 is provided on one side of the second slide rail 51. Several second sliders 55 and second moving blocks 56 are fixed on the side of the Z-axis fixing plate 54 facing the second slide rail 51. The number of second sliders 55 is the same as the number of second slide rails 51. The second sliders 55 are snapped into the inner side of the second slide rails 51. The inner side of the second moving block 56 is threadedly connected to the side of the second threaded rod.

[0051] It should be noted that the controller 7 controls the start of the Y-axis servo motor 52, which can drive the second threaded screw 53 to rotate. The second moving block 56 is threadedly connected to the side of the second threaded screw 53. The second moving block 56 can then drive the Z-axis fixed plate 54 to move along the length of the second threaded screw 53 along the Y-axis. At the same time, several second sliders 55 on one side of the Z-axis fixed plate 54 will slide and limit along the inner side of several second slide rails 51. While moving, the Z-axis moving component and the print head 21 move synchronously.

[0052] like Figure 2 , Figure 3 and Figure 4 As shown, the Z-axis moving assembly includes: Z-axis connecting plates 6 disposed on both sides of the Z-axis fixing plate 54, a plurality of third slide rails 61 fixed on one side of the Z-axis connecting plate 6, and a Z-axis servo motor 62 disposed on one side of the Z-axis connecting plate 6; the output end of the Z-axis servo motor 62 is provided with a third threaded screw 63, the third threaded screw 63 is located between adjacent third slide rails 61, and both ends of the third threaded screw 63 are rotatably connected to the inner side of the Z-axis connecting plates 6 on both sides of the Z-axis fixing plate 54.

[0053] A Z-axis moving plate 64 is provided on one side of the third slide rail 61. Several third sliders 65 and third moving blocks 66 are fixed on the side of the Z-axis moving plate 64 facing the third slide rail 61. The number of third sliders 65 is the same as the number of third slide rails 61. The third sliders 65 are snapped into the inner side of the third slide rails 61. The inner side of the third moving block 66 is threaded to the side of the third threaded rod. The other side of the Z-axis moving plate 64 is fixedly connected to one side of several fixed rings 2.

[0054] It should be noted that the controller 7 controls the start of the Z-axis servo motor 62, which can drive the third threaded screw 63 to rotate. Through the third moving block 66 threadedly connected to the side of the third threaded screw 63, the third moving block 66 can drive the Z-axis moving plate 64 to move along the length of the third threaded screw 63 in the Z-axis direction. At the same time, several third sliders 65 on one side of the Z-axis moving plate 64 will slide and limit along the inner side of several third slide rails 61. While moving, the print head 21 will move synchronously.

[0055] like Figure 5 and Figure 6 As shown, the cable tray embedded part mold includes: a male mold 3 and a female mold 31 disposed on one side of the male mold 3; a male mold forming cavity 33 is opened on the side of the male mold 3 facing the female mold 31, and a female mold forming cavity 34 is opened on the side of the female mold 31 facing the male mold 3; prefabricated cable tray embedded parts 32 are disposed inside the male mold forming cavity 33 and the female mold forming cavity 34.

[0056] Both the male mold forming cavity 33 and the female mold forming cavity 34 have a positioning block 35 and several support heads 36 fixed on one side inside. The support heads 36 are evenly fixed on the side of the positioning block 35 in a circumferential array. The distance from the middle of the positioning block 35 to one end of the support head 36 is the same as the distance from the middle of the prefabricated cable tray embedded part 32 to the inner wall.

[0057] It should be noted that the female mold 31 has a main runner, several branch runners, and injection points on one side. During injection molding, the fixed mold consists of the female mold, the female mold forming cavity 34, and the clamping block 38, while the moving mold consists of the male mold 3, the male mold forming cavity 33, and the slot 37. After the mold is set up and adjusted on the injection molding machine, the prefabricated cable tray embedded part 32 is clamped into the inner side of the male mold forming cavity 33 and the female mold forming cavity 34 by the cooperation of the positioning block 35 and several support heads 36 on the inner side of the male mold forming cavity 33 and the female mold forming cavity 34, which plays a role in limiting and fixing it, thereby preventing the side of the prefabricated cable tray embedded part 32 from being damaged. The material contacts the inner wall of the male mold forming cavity 33 or the inner wall of the female mold forming cavity 34 to avoid uneven thickening of the side of the prefabricated cable tray embedded part 32. Several locking blocks 38 are engaged in the interior of several locking slots 37. The injection molding machine flows the molten material from the main channel into several branch channels in sequence. Then, the molten material is injected into the female mold forming cavity 34 through the injection point to cooperate with the male mold forming cavity 33 for molding. After the prefabricated cable tray embedded part 32, which has been thickened in the cavity, cools and solidifies, the cable tray embedded part is ejected by the mold locking mechanism. After the surface burrs are removed, the preparation of the one-piece molded cable tray embedded part is completed.

[0058] The male mold 3 has several slots 37 on the side facing the female mold 31, and several blocks 38 are fixed on the side facing the male mold 3. The slots 37 and blocks 38 are the same size, and the number of slots 37 and blocks 38 is the same. The male mold 3 and the female mold 31 can be positioned and connected by the blocks 38 being engaged with the slots 37.

[0059] The method for preparing embedded parts for cable trays includes the following steps:

[0060] S1. Use computer-aided design software to create a 3D model of the cable tray embedded parts. The 3D model of the cable tray embedded parts includes the geometry and structure of the cable tray embedded parts. Based on the 3D model of the cable tray embedded parts, use computer-aided design software to reduce the thickness of the 3D model of the cable tray embedded parts to 1-3 mm, and complete the creation of the 3D model of the prefabricated cable tray embedded parts.

[0061] S2. The created 3D model of the prefabricated cable tray embedded part is imported into the slicing software in the controller 7. The slicing software cuts the model into multiple thin slices and generates the printing path and parameters for each slice. During printing, the controller 7 controls the printing nozzle 21 to spray metal powder layer by layer onto the printing plane to form a thin layer. Then, the printing nozzle 21 uses a laser beam or electron beam to melt the metal powder and bond it together. The printing process is repeated until the entire prefabricated cable tray embedded part 32 is printed. During the printing process, the controller 7 controls the X-axis servo motor 43, Y-axis servo motor 52 and Z-axis servo motor 62 to start and control the X-axis moving component, Y-axis moving component and Z-axis moving component to move the printing nozzle 21 in three directions.

[0062] S3. The fixed mold part consists of a female mold 31, a female mold forming cavity 34, and a locking block 38. The moving mold part consists of a male mold 3, a male mold forming cavity 33, and a locking groove 37. After the mold is set up and adjusted on the injection molding machine, the prefabricated cable tray embedded part 32 is locked into the inner side of the male mold forming cavity 33 and the female mold forming cavity 34 by the cooperation of the positioning block 35 and several support heads 36 on the inner side of the male mold forming cavity 33 and the female mold forming cavity 34. Several locking blocks 38 are locked into the inside of several locking grooves 37. The injection molding machine flows the molten material from the main channel into several branch channels in sequence, and then injects the molten material into the female mold forming cavity 34 through the injection point to cooperate with the male mold forming cavity 33 for molding. After the prefabricated cable tray embedded part 32, which has been thickened in the cavity, cools and solidifies, the cable tray embedded part is pushed out by the mold locking mechanism. After the surface burrs are removed, the preparation of the one-piece molded cable tray embedded part is completed.

[0063] The cable tray embedded part preparation method provided by the present invention uses a combination of 3D metal printing mechanism and cable tray embedded part mold mechanism to cast the cable tray embedded part. During preparation, there is no need to manufacture the multiple bends of the cable tray embedded part in sections, so as to achieve the effect of integral molding. This can eliminate the interfaces or connection points in welding or bolted connections, thereby improving the sealing, strength and reliability of the product, and reducing the problems of instability or fatigue caused by interfaces or connection points.

[0064] Based on the preferred embodiments of the present invention described above, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A method for preparing embedded parts for cable trays, characterized in that, Includes the following steps: S1. Import the 3D model of the prefabricated cable tray embedded part into the slicing software in the controller. The slicing software cuts the model into multiple thin slices and generates the printing path and parameters for each slice. During printing, the metal powder is sprayed layer by layer onto the printing plane through the printing nozzle to form a thin layer. Then, the printing nozzle uses a laser beam or electron beam to melt the metal powder and bond it together. The printing process is repeated until the entire prefabricated cable tray embedded part is printed. S2. The fixed mold part consists of a female mold, a female mold forming cavity, and a locking block. The moving mold part consists of a male mold, a male mold forming cavity, and a locking groove. Through the cooperation of the positioning blocks and several support heads inside the male mold forming cavity and the female mold forming cavity, the prefabricated cable tray embedded part is locked inside the male mold forming cavity and the female mold forming cavity. After the locking block is locked in the locking groove, the injection molding machine flows the molten material from the main channel into several branch channels in sequence. Then, the molten material is injected into the female mold forming cavity through the injection point to cooperate with the male mold forming cavity for molding, thereby thickening the outer layer of the prefabricated cable tray embedded part. S3. After the prefabricated cable tray embedded part, which has been thickened in the cavity, has cooled and solidified, the mold is opened and the cable tray embedded part is taken out. After removing the burrs, the preparation of the one-piece molded cable tray embedded part is completed. The preparation apparatus of the preparation method includes: a 3D metal printing mechanism and a bridge pre-embedded part mold mechanism; The 3D metal printing mechanism includes: a plurality of support rods and a connecting frame disposed on one side of adjacent support rods, and a printing stage disposed between the plurality of support rods near the bottom; the top of the plurality of support rods is provided with a plurality of X-axis moving components for providing X-axis movement during printing, a Y-axis moving component for providing Y-axis movement during printing is disposed between adjacent X-axis moving components, and a Z-axis moving component for providing Z-axis movement during printing is disposed on one side of the Y-axis moving component; A plurality of fixing rings are provided on one side of the Z-axis moving assembly, and a printing nozzle is fixed on the inner side of the plurality of fixing rings. The cable tray embedded part mold mechanism includes: a male mold and a female mold disposed on one side of the male mold; the male mold has a male mold forming cavity on the side facing the female mold, and the female mold has a female mold forming cavity on the side facing the male mold; prefabricated cable tray embedded parts are disposed inside the male mold forming cavity and the female mold forming cavity. Both the male mold forming cavity and the female mold forming cavity have a positioning block and several support heads fixed on one side inside. The support heads are evenly fixed on the side of the positioning block in a circumferential array. The distance from the middle of the positioning block to one end of the support head is the same as the distance from the middle of the prefabricated cable tray embedded part to the inner wall.

2. The method for preparing a cable tray embedded part according to claim 1, characterized in that: In step S1, a 3D model of the cable tray embedded part is created using computer-aided design software. The 3D model of the cable tray embedded part includes the geometry and structure of the cable tray embedded part. Based on the 3D model of the cable tray embedded parts, computer-aided design software is used to reduce the thickness of the 3D model of the cable tray embedded parts to 1-3 mm, thus completing the creation of the 3D model of the prefabricated cable tray embedded parts.

3. The method for preparing a cable tray embedded part according to claim 1, characterized in that: In S1, during the printing process, the controller controls the X-axis moving component, the Y-axis moving component, and the Z-axis moving component to move the print head in three directions.

4. The method for preparing embedded parts for cable trays according to claim 1, characterized in that: The X-axis moving assembly includes: an X-axis fixing plate disposed on the top of the support rod, X-axis connecting plates disposed on both sides of the X-axis fixing plate, and a plurality of first slide rails fixed on one side of the X-axis fixing plate; an X-axis servo motor is disposed on one side of the X-axis connecting plate, and a first threaded screw is disposed at the output end of the X-axis servo motor. A Y-axis connecting plate is provided on one side of the first slide rail. A plurality of first sliders and first moving blocks are fixed on the side of the Y-axis connecting plate facing the first slide rail. The plurality of first sliders are snapped into the inner side of the plurality of first slide rails. The inner side of the first moving block is threadedly connected to the side of the first threaded screw.

5. The method for preparing a cable tray embedded part according to claim 4, characterized in that: The Y-axis moving assembly includes: a Y-axis fixing plate disposed on one side of the Y-axis connecting plate, a plurality of second slide rails fixed on one side of the Y-axis fixing plate, and a Y-axis servo motor disposed on the other side of the Y-axis connecting plate; the output end of the Y-axis servo motor is provided with a second threaded screw. A Z-axis fixing plate is provided on one side of the second slide rail. A plurality of second sliders and a second moving block are fixed on the side of the Z-axis fixing plate facing the second slide rail. The plurality of second sliders are snapped into the inner side of the plurality of second slide rails. The inner side of the second moving block is threadedly connected to the side of the second threaded screw.

6. The method for preparing a cable tray embedded part according to claim 5, characterized in that: The Z-axis moving assembly includes: Z-axis connecting plates disposed on both sides of the Z-axis fixed plate, a plurality of third slide rails fixed on one side of the Z-axis connecting plate, and a Z-axis servo motor disposed on one side of the Z-axis connecting plate; the output end of the Z-axis servo motor is provided with a third threaded screw. A Z-axis moving plate is provided on one side of the third slide rail. Several third sliders and third moving blocks are fixed on the side of the Z-axis moving plate facing the third slide rail. Several third sliders are snapped into the inner side of several third slide rails. The inner side of the third moving block is threaded to the side of the third threaded screw. The other side of the Z-axis moving plate is fixedly connected to one side of several fixed rings.

7. A method for preparing embedded parts for cable trays according to claim 6, characterized in that: A controller is provided on one side of the support rod, and the controller is electrically connected to the X-axis servo motor, Y-axis servo motor, Z-axis servo motor and print head respectively.

8. The method for preparing a cable tray embedded part according to claim 1, characterized in that: The master mold has a main runner, several branch runners, and injection points on one side.

9. A method for preparing embedded parts for cable trays according to claim 1, characterized in that: The male mold has several slots on the side facing the female mold, and the female mold has several blocks fixed on the side facing the male mold. The slots and blocks are the same size.

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