Laser cladding powder feeder

Abstract

The utility model belongs to the technical field of laser cladding, and particularly discloses a laser cladding powder feeder which comprises a workbench, a powder storage tank, a stirring assembly, a heating assembly and an intermittent blanking assembly, the powder storage tank is fixed on the workbench, and a discharge port is formed in the bottom of the powder storage tank; the intermittent discharging assembly comprises a driving structure and a discharging plate, the discharging plate is rotationally connected to the upper portion of the workbench, the rotating center of the discharging plate coincides with the central axis of the powder storage tank, and the driving structure is used for driving the discharging plate to rotate; the discharging plate is arranged between the powder storage tank and the workbench; the discharging plate is provided with a discharging opening, and the workbench is provided with a feeding opening. The discharging opening can directly face the feeding opening, and the discharging plate can block the feeding opening. And by rotating the discharging plate, overlapping or staggering of the discharging opening and the feeding opening can be achieved, intermittent discharging can be achieved, and pipeline blockage caused by excessive one-time discharging is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of laser cladding technology, and in particular relates to a laser cladding powder feeder. Background Technology

[0002] Laser cladding is an advanced surface treatment technology and has become a key technology for preparing cladding layers. However, the uniformity and stability of powder feeding have a significant impact on the performance of the cladding layer.

[0003] Currently, laser cladding processes typically require the use of a laser cladding powder feeder for powder delivery. For example, an existing patent discloses a laser cladding powder feeder (CN215887233U), which includes a powder cylinder, a distribution mechanism, a multi-turn heating coil, a base, and a powder transfer mechanism. The heating coil is located on the lower outer wall of the powder cylinder. The multi-turn heating coil is spaced at certain intervals along the axial direction of the powder cylinder. The distribution mechanism is located inside the powder cylinder to adhere the powder to the inner wall of the powder cylinder. The heating coil is located in conjunction with the distribution mechanism. The powder cylinder has a conical bottom with a discharge port at the bottom. The discharge port is located inside the base. The powder transfer mechanism is located inside the base to evenly transport the powder falling from the powder cylinder out of the base.

[0004] When using this device, a large amount of powder is put in at once for hot drying and dehydration, and the powder is continuously fed in. On the one hand, the large amount of powder that is not stirred will cause uneven drying of the powder. On the other hand, the continuous release of powder will cause the powder to accumulate in the pipe, which will easily cause the pipe to be blocked. Utility Model Content

[0005] The purpose of this invention is to provide a laser cladding powder feeder that can stir the powder to make the drying more uniform and can release the dried powder intermittently to avoid pipe blockage caused by excessive material feeding at one time.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a laser cladding powder feeder, comprising a worktable, a powder storage tank, a stirring assembly, a heating assembly, and an intermittent feeding assembly. The powder storage tank is fixed on the worktable, with a feeding port at the top and a discharge port at the bottom. The stirring assembly is used to stir the powder in the powder storage tank. The heating assembly is fixed inside the powder storage tank and is used to dry and heat the powder in the tank. The intermittent feeding assembly includes a drive structure and a discharge plate. The discharge plate is rotatably connected above the worktable, and the rotation center of the discharge plate coincides with the central axis of the powder storage tank. The drive structure is used to drive the discharge plate to rotate. The discharge plate is located between the powder storage tank and the worktable. The discharge plate has a discharge port, and the worktable has a feeding port. The feeding port transports the dried powder to a feeding pipe. The discharge port can be directly opposite the feeding port, and the discharge plate can block the feeding port.

[0007] Furthermore, the stirring assembly includes a stirring drive, a stirring shaft, and several sets of stirring plates. The stirring drive is fixed to the top of the powder storage tank, and the driving end of the stirring drive is fixed to the stirring shaft, which extends into the powder storage tank. Several sets of stirring plates are evenly fixed around the stirring shaft. The stirring drive drives the stirring plates to rotate inside the heating assembly via the stirring shaft.

[0008] Furthermore, the heating assembly includes several sets of heating rings, which are arranged vertically at intervals inside the powder storage tank.

[0009] Furthermore, a fixed bracket is fixed on the powder storage tank, and the fixed bracket is fixed on the workbench. A gap is left between the powder storage tank and the workbench. The gap is used to install the discharge plate, and the discharge plate can rotate within the gap.

[0010] Furthermore, the outer side of the discharge plate is provided with a gear ring, and the driving structure includes a gear and a discharge driving component. The discharge driving component is fixed on the worktable and is used to drive the gear to rotate. The gear meshes with the gear ring.

[0011] Furthermore, a feeding hopper is fixed to the lower side of the workbench, the large-diameter end of the feeding hopper is fixed to the bottom of the workbench, and the large-diameter end of the feeding hopper completely covers the feeding port; the small-diameter end of the feeding hopper is connected to the feeding pipe.

[0012] Furthermore, the workbench is also provided with a fixing component, which is used to fix the workbench in a specific position; the fixing component includes a support bracket, a fixing drive component and two sets of clamping plates, the support bracket is fixed on the workbench, and the fixing drive component is mounted on the support bracket; the fixing drive component can change the distance between the two sets of clamping plates, and the two sets of clamping plates are used to clamp in a specific position.

[0013] Furthermore, the support bracket is provided with a sliding groove, the sliding direction of which is consistent with the arrangement direction between the two sets of clamping plates; one set of clamping plates is fixed on the support bracket, and a sliding rod is fixed on the other set of clamping plates, the sliding rod being slidably connected in the sliding groove; a lead screw sleeve is connected to the side of the sliding rod away from the clamping plate; a lead screw is rotatably connected to the support bracket, and the lead screw is threadedly connected to the lead screw sleeve.

[0014] Furthermore, the support bracket is provided with a sliding groove, the sliding direction of which is consistent with the arrangement direction between the two sets of clamping plates; a sliding rod is fixed on each of the two sets of clamping plates, and the sliding rod is slidably connected in the sliding groove; a lead screw sleeve is connected to the side of the sliding rod away from the clamping plate; a double-ended lead screw is rotatably connected to the support bracket, the double-ended lead screw is threadedly connected to the lead screw sleeve, and the two sets of lead screw sleeves are respectively located at the bidirectional thread position of the double-ended lead screw.

[0015] Furthermore, the discharge plate is provided with several sets of discharge ports around its circumference, and the workbench is provided with feeding ports that correspond one-to-one with the discharge ports; the area between two adjacent sets of discharge ports can block one set of feeding ports.

[0016] The beneficial effects of this technical solution are as follows:

[0017] ①In this technical solution, the stirring drive will drive the stirring plate to rotate through the stirring shaft. The rotation of the stirring plate will stir the powder in the powder storage tank and heat the powder in the powder storage tank through the heating ring. This can evenly dry the moisture in the powder and has a good heat drying effect on the powder.

[0018] ② In this technical solution, the overlap or stagger between the discharge port and the feed port can be achieved by rotating the discharge plate, thus enabling intermittent feeding and avoiding pipe blockage caused by excessive feeding at one time.

[0019] ③ In this technical solution, the workbench can be fixed in a specific position by setting a fixing component, which makes it convenient to use. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a laser cladding powder feeder according to the present invention;

[0021] Figure 2 A schematic diagram of the structure of a laser cladding powder feeder with a fixing component as described in this utility model;

[0022] Figure 3 for Figure 1 Schematic diagram of the internal structure of the medium-sized powder storage tank;

[0023] Figure 4 for Figure 1 Schematic diagram of the intermittent feeding assembly;

[0024] Figure 5 This is a schematic diagram showing the interaction between the drive structure and the intermittent feeding component. Detailed Implementation

[0025] The following detailed description illustrates the specific implementation method:

[0026] The reference numerals in the accompanying drawings include: workbench 1, fixed bracket 2, powder storage tank 3, feeding port 4, discharging hopper 5, feeding pipe 6, collecting pipe 7, stirring assembly 8, stirring drive 81, stirring shaft 82, stirring plate 83, heating ring 84, intermittent feeding assembly 9, rotating shaft 91, discharge plate 92, discharging port 93, feeding port 94, discharge drive 95, drive shaft 96, gear 97, gear ring 98, fixed assembly 10, support bracket 101, slide groove 102, slide rod 103, clamping plate 104, double-ended lead screw 105, lead screw sleeve 106.

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Example 1

[0029] The basics are as follows: Figure 1-5 As shown: A laser cladding powder feeder includes a worktable 1, a powder storage tank 3, a stirring assembly 8, a heating assembly, and an intermittent feeding assembly 9. The powder storage tank 3 is fixed on the worktable 1. Specifically, an L-shaped fixing bracket 2 is fixed on the powder storage tank 3. The fixing bracket 2 is fixed on the worktable 1. A gap is left between the powder storage tank 3 and the worktable 1. The gap is used to install a discharge plate 92. The discharge plate 92 can rotate within the gap. The lower side of the powder storage tank 3 contacts the discharge plate 92 to prevent powder leakage.

[0030] like Figure 3 As shown, the heating component is fixed inside the powder storage tank 3 and is used to dry and heat the powder in the powder storage tank 3. The heating component includes several sets of heating rings 84, which are arranged vertically at intervals inside the powder storage tank 3.

[0031] like Figure 3 As shown, the stirring assembly 8 is used to stir the powder in the powder storage tank 3; the stirring assembly 8 includes a stirring drive 81 (stirring motor), a stirring shaft 82 and several sets of stirring plates 83. The stirring drive 81 is fixed to the top of the powder storage tank 3, and the driving end of the stirring drive 81 is fixed to the stirring shaft 82, which extends into the powder storage tank 3; several sets of stirring plates 83 are evenly fixed around the stirring shaft 82; the stirring drive 81 drives the stirring plates 83 to rotate inside the heating ring 84 through the stirring shaft 82.

[0032] The powder storage tank 3 has three feeding ports 4 at the top and a discharge port at the bottom. Figure 4 , 5As shown, the intermittent feeding assembly 9 includes a drive structure and a discharge plate 92. The discharge plate 92 is rotatably connected above the worktable 1. Specifically, a rotating shaft 91 is rotatably connected to the worktable 1, and the rotating shaft 91 is fixed to the center of the discharge plate 92. The rotation center of the discharge plate 92 coincides with the central axis of the powder storage tank 3. The drive structure is used to drive the discharge plate 92 to rotate. Specifically, a gear ring 98 is provided on the outside of the discharge plate 92. The drive structure includes a gear 97 and a discharge drive component 95 (discharge motor). The discharge drive component 95 is fixed on the worktable 1. The discharge drive component 95 is used to drive the gear 97 to rotate. Specifically, a drive shaft 96 is fixed to the output end of the discharge drive component 95. The drive shaft 96 is fixed to the center of the gear 97, and the gear 97 meshes with the gear ring 98. The discharge plate 92 is located between the powder storage tank 3 and the workbench 1; the discharge plate 92 is provided with a discharge port 93, and the workbench 1 is provided with a feeding port 94. The feeding port 94 conveys the dried powder to the feeding pipe 6. The discharge port 93 can be directly opposite the feeding port 94, and the discharge plate 92 can block the feeding port 94.

[0033] like Figure 1 , 2 As shown, a feeding hopper 5 is fixed to the lower side of the workbench 1. The large diameter end of the feeding hopper 5 is fixed to the bottom of the workbench 1, and the large diameter end of the feeding hopper 5 completely covers the feeding port 94; the small diameter end of the feeding hopper 5 is connected to the feeding pipe 6.

[0034] like Figure 2 As shown, the worktable 1 is also equipped with a fixing component 10, which is used to fix the worktable 1 in a specific position. The fixing component 10 includes a U-shaped support bracket 101, a fixing drive component, and two sets of clamping plates 104. The support bracket 101 is fixed on the worktable 1, and the fixing drive component is mounted on the support bracket 101. The fixing drive component can change the distance between the two sets of clamping plates 104, which are used to clamp the worktable 104 in a specific position. Specifically, the support bracket 101 is provided with a sliding groove 102, and the sliding direction of the sliding groove 102 is consistent with the arrangement direction between the two sets of clamping plates 104. Both sets of clamping plates 104 are fixed with sliding rods 103, which are slidably connected in the sliding groove 102; a lead screw sleeve 106 is connected to the side of the sliding rod 103 away from the clamping plate 104; a double-ended lead screw 105 is rotatably connected to the support bracket 101, and the double-ended lead screw 105 is threadedly connected to the lead screw sleeve 106, with the two sets of lead screw sleeves 106 located at the bidirectional threaded positions of the double-ended lead screw 105.

[0035] The specific implementation process is as follows:

[0036] In use, the turntable at the top of the double-ended lead screw 105 can be rotated to drive the double-ended lead screw 105 to rotate. The rotation of the double-ended lead screw 105 will cause the two sets of lead screw sleeves 106 to move closer to each other on the double-ended lead screw 105. The lead screw sleeves 106 drive the two sets of clamping plates 104 to move closer to each other through the slide rod 103 until the two sets of clamping plates 104 clamp at a specific position. Then, the feeding pipe 6 is connected to the inlet of the laser cladding equipment, and a certain amount of powder is added to the powder storage tank 3 through the feeding port 4.

[0037] When the stirring drive unit 81 is started, the rotation of the stirring drive unit 81 will drive the stirring shaft 82 to rotate, the rotation of the stirring shaft 82 will drive the stirring plate 83 to rotate, the rotation of the stirring plate 83 will stir the powder in the powder storage tank 3, and the powder in the powder storage tank 3 will be heated and dried through the heating ring 84, which can evenly dry the moisture in the powder and has a good drying effect on the powder.

[0038] When feeding is required, the discharge drive 95 is activated. The rotation of the discharge drive 95 drives the drive shaft 96, which in turn drives the gear 97. The rotation of the drive gear 97, in turn, drives the discharge plate 92 to rotate via the gear ring 98. In the initial state, the feeding port 94 and the discharge port 93 are misaligned and do not discharge. During the period between when the discharge plate 92 rotates and the feeding port 94 and the discharge port 93 begin to overlap and then become misaligned, powder can be fed. At other times, no powder is fed, allowing for intermittent release of powder from the powder storage tank 3. This avoids excessive material feeding at once, which could cause pipe blockage. The powder released from the powder storage tank 3 enters the feeding pipe 6 through the discharge hopper 5 and then enters the laser cladding equipment, thus completing the powder conveying process.

[0039] Example 2

[0040] The only difference between this embodiment and Embodiment 1 is that: the discharge plate 92 has several sets of discharge ports 93 circumferentially, and the worktable 1 has feeding ports 94 that correspond one-to-one with the discharge ports 93; the area between two adjacent sets of discharge ports 93 can block one set of feeding ports 94. The width of the discharge ports 93 increases towards the direction away from the rotation center, forming a fan-shaped or trapezoidal structure. The shape and size of the feeding ports 94 are the same as those of the discharge ports 93.

[0041] Example 3

[0042] The only difference between this embodiment and embodiment one or three is that: one set of clamping plates 104 is fixed on the support bracket 101, and another set of clamping plates 104 is fixed with a sliding rod 103, which is slidably connected in the sliding groove 102; a lead screw sleeve 106 is connected to the side of the sliding rod 103 away from the clamping plate 104; a lead screw is rotatably connected to the support bracket 101, and the lead screw is threadedly connected to the lead screw sleeve 106.

[0043] Example 4

[0044] The only difference between this embodiment and embodiments one, two, and three is that this embodiment includes multiple sets of powder storage tanks 3, stirring components 8, heating components, and intermittent feeding components 9, but only one set of drive structure is provided. The gears 97 of the drive structure mesh with the gear rings 98 of the multiple sets of intermittent feeding components 9. Multiple sets of feeding pipes 6 are connected to the collecting pipe 7, which collects the powder conveyed by the multiple sets of feeding pipes 6 and then transports it to the laser cladding equipment.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] The above descriptions are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are knowledgeable of all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Therefore, those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in conjunction with their own capabilities. Typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A laser cladding powder feeder, characterized in that: The system includes a workbench (1), a powder storage tank (3), a stirring assembly (8), a heating assembly, and an intermittent feeding assembly (9). The powder storage tank (3) is fixed on the workbench (1), with a feeding port (4) at the top and a discharge port at the bottom. The stirring assembly (8) is used to stir the powder in the powder storage tank (3). The heating assembly is fixed inside the powder storage tank (3) and is used to dry and heat the powder in the powder storage tank (3). The intermittent feeding assembly (9) includes a drive structure and a discharge plate (92), which is rotatably connected to the workbench (1). Above the workbench (1), and the rotation center of the discharge plate (92) coincides with the central axis of the powder storage tank (3), the drive structure is used to drive the discharge plate (92) to rotate; the discharge plate (92) is located between the powder storage tank (3) and the workbench (1); the discharge plate (92) is provided with a discharge port (93), and the workbench (1) is provided with a feeding port (94), the feeding port (94) transports the dried powder to the feeding pipe (6); the discharge port (93) can be directly opposite the feeding port (94), and the discharge plate (92) can block the feeding port (94).

2. The laser cladding powder feeder according to claim 1, characterized in that: The stirring assembly (8) includes a stirring drive (81), a stirring shaft (82), and several sets of stirring plates (83). The stirring drive (81) is fixed to the top of the powder storage tank (3), and the driving end of the stirring drive (81) is fixed to the stirring shaft (82). The stirring shaft (82) extends into the powder storage tank (3). Several sets of stirring plates (83) are evenly fixed around the stirring shaft (82). The stirring drive (81) drives the stirring plates (83) to rotate inside the heating assembly through the stirring shaft (82).

3. The laser cladding powder feeder according to claim 1, characterized in that: The heating assembly includes several sets of heating rings (84), which are arranged vertically at intervals inside the powder storage tank (3).

4. The laser cladding powder feeder according to claim 1, characterized in that: A fixed bracket (2) is fixed on the powder storage tank (3). The fixed bracket (2) is fixed on the workbench (1). There is a gap between the powder storage tank (3) and the workbench (1). The gap is used to install the discharge plate (92). The discharge plate (92) can rotate within the gap.

5. A laser cladding powder feeder according to claim 1, characterized in that: The discharge plate (92) is provided with a gear ring (98) on its outside. The drive structure includes a gear (97) and a discharge drive component (95). The discharge drive component (95) is fixed on the worktable (1). The discharge drive component (95) is used to drive the gear (97) to rotate. The gear (97) meshes with the gear ring (98).

6. The laser cladding powder feeder according to claim 1, characterized in that: A feeding hopper (5) is fixed to the lower side of the workbench (1). The large diameter end of the feeding hopper (5) is fixed to the bottom of the workbench (1), and the large diameter end of the feeding hopper (5) completely covers the feeding port (94). The small diameter end of the feeding hopper (5) is connected to the feeding pipe (6).

7. A laser cladding powder feeder according to claim 1, characterized in that: The workbench (1) is also provided with a fixing component (10), which is used to fix the workbench (1) in a specific position. The fixing component (10) includes a support bracket (101), a fixing drive component and two sets of clamping plates (104). The support bracket (101) is fixed on the workbench (1) and the fixing drive component is installed on the support bracket (101). The fixing drive component can change the distance between the two sets of clamping plates (104) and the two sets of clamping plates (104) are used to clamp in a specific position.

8. A laser cladding powder feeder according to claim 7, characterized in that: The support bracket (101) is provided with a sliding groove (102), and the sliding direction of the sliding groove (102) is consistent with the arrangement direction between the two sets of clamping plates (104); one set of clamping plates (104) is fixed on the support bracket (101), and the other set of clamping plates (104) is fixed with a sliding rod (103), which is slidably connected in the sliding groove (102); a lead screw sleeve (106) is connected to the side of the sliding rod (103) away from the clamping plate (104); a lead screw is rotatably connected to the support bracket (101), and the lead screw is threadedly connected to the lead screw sleeve (106).

9. A laser cladding powder feeder according to claim 7, characterized in that: The support bracket (101) is provided with a sliding groove (102), and the sliding direction of the sliding groove (102) is consistent with the arrangement direction between the two sets of clamping plates (104); a sliding rod (103) is fixed on each of the two sets of clamping plates (104), and the sliding rod (103) is slidably connected in the sliding groove (102); a lead screw sleeve (106) is connected to the side of the sliding rod (103) away from the clamping plate (104); a double-ended lead screw (105) is rotatably connected to the support bracket (101), and the double-ended lead screw (105) is threadedly connected to the lead screw sleeve (106), and the two sets of lead screw sleeves (106) are respectively located at the bidirectional thread position of the double-ended lead screw (105).

10. A laser cladding powder feeder according to claim 1, characterized in that: The discharge plate (92) is provided with several sets of discharge ports (93) around its circumference, and the workbench (1) is provided with feeding ports (94) that correspond one-to-one with the discharge ports (93); the area between two adjacent sets of discharge ports (93) can block one set of feeding ports (94).

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