On-line powder spreading device for substrate

Abstract

The utility model discloses a base plate on-line powder spreading device which comprises a support, a base plate conveying roller, a material distributing hopper and a powder hopper are sequentially installed on the support from bottom to top, a vibrating screen is arranged between the material distributing hopper and the powder hopper, the base plate conveying roller is rotatably installed on the support, the material distributing hopper comprises a hopper body and a material distributing section, a material distributing cavity is formed in the material distributing section, and the vibrating screen is arranged in the material distributing section. A material distributing cavity is formed in the material distributing section and communicated with the interior of the hopper body, a material distributing opening communicated with the material distributing cavity is formed in the lower end of the material distributing section, the length direction of the material distributing opening is parallel to the axis direction of the substrate conveying roller, the length of the material distributing opening is adjustable, the vibration screen is driven by a vibration driving mechanism to vibrate, a discharging opening is formed in the lower end of the powder hopper, and a valve is installed at the discharging opening. According to the on-line powder laying device for the base plate, powder can be evenly and stably laid on the base plate, the thickness of a powder layer can be adjusted, and the on-line powder laying device for the base plate can be suitable for laying powder on the base plates of different specifications and is wide in application range.

Description

Technical Field

[0001] The utility model belongs to the technical field of self-lubricating material production, and in particular relates to an online powder spreading device for a substrate. Background Art

[0002] Self-lubricating materials used in the production of bearing sleeves, etc., are generally formed by laying a layer of copper powder, plastic powder or other powders with self-lubricating function on a steel plate (substrate), and then sintering it. In order to improve production efficiency, self-lubricating materials are generally produced online continuously. Therefore, it is also necessary to realize online powder spreading when spreading powder on the substrate. The existing powder spreading mechanism directly uses a funnel to leak the powder onto the substrate passing at a uniform speed, which is prone to uneven powder spreading. In addition, there may be agglomeration between the powders. If they are spread directly on the substrate, agglomerated particles will be formed, resulting in product quality problems. Utility Model Content

[0003] In order to solve the above technical problems, the technical solution adopted by the utility model is: an online powder spreading device for a substrate, comprising a bracket, on which a substrate conveying roller, a distribution hopper, and a powder hopper are sequentially installed from bottom to top, a vibrating screen is provided between the distribution hopper and the powder hopper, the substrate conveying roller is rotatably installed on the bracket, the distribution hopper comprises a hopper body and a distribution section, a distribution cavity is provided inside the distribution section, the distribution cavity is connected to the inside of the hopper body, a distribution port connected to the distribution cavity is provided at the lower end of the distribution section, the length direction of the distribution port is parallel to the axial direction of the substrate conveying roller, the length of the distribution port is adjustable, the vibrating screen is driven to vibrate by a vibration driving mechanism, a discharge port is provided at the lower end of the powder hopper, and a valve is installed at the discharge port.

[0004] As a preferred embodiment of the above technical solution, adjustment openings are respectively provided on both sides of the cloth section, and the adjustment openings are connected to the cloth cavity. An adjustment block is slidably installed in the adjustment opening, and an inclined guide surface is provided on the inner side of the adjustment block. A handle is fixedly connected to the adjustment block, and a plurality of adjustment long holes are provided on the cloth section. The adjustment long holes correspond to the handles one by one, and the handles pass through the corresponding adjustment long holes.

[0005] As a preferred embodiment of the above technical solution, slide rails are fixedly connected to both sides of the bracket, the vibrating screen is located between the slide rails, and a slider is installed on the slide rails. A connecting shaft is provided between the slider and the vibrating screen, one end of the connecting shaft is rotatably connected to the middle part of one side of the vibrating screen, and the other end is fixedly connected to the slider. Inclined surfaces are respectively provided on the lower surfaces of both ends of the vibrating screen, and support rollers are respectively provided below the inclined surfaces. Both ends of the support rollers are rotatably connected to the bracket, and the vibration drive mechanism includes a cylinder installed on the bracket, a conveying shaft of the cylinder is connected to one of the sliders, and the conveying shaft of the cylinder is parallel to the slide rail.

[0006] As a preferred embodiment of the above technical solution, a fixed screen is provided between the powder hopper and the vibrating screen, the fixed screen is fixedly mounted on the bracket, and the mesh diameter of the fixed screen is larger than the mesh diameter of the vibrating screen.

[0007] As a preferred embodiment of the above technical solution, a glue coating roller is installed on the bracket, a glue box is provided above the glue coating roller, a glue outlet is provided at the lower end of the glue box, and the glue coating roller is rotatably installed on the bracket.

[0008] As a preferred embodiment of the above technical solution, both ends of the substrate conveying roller are slidably connected with adjustment slides, and the adjustment slides are slidably installed on the vertical slide rails, and the vertical slide rails are fixedly installed on the bracket. The lower end of the vertical slide rail is provided with a fixed block, and the fixed block is provided with a threaded hole. The threaded hole is threadedly connected with a support screw, and the upper end of the support screw supports the adjusting slide.

[0009] As a preferred embodiment of the above technical solution, each of the adjusting slide plates is fixedly connected to a connecting plate, a long mounting hole is provided on the connecting plate, a fastening screw is provided in the long mounting hole, an upper locking nut and a lower locking nut are threadedly connected to the fastening screw, the connecting plate is clamped between the corresponding upper locking nut and the lower locking nut, and the upper end of the fastening screw is rotatably connected to a positioning wheel.

[0010] As a preferred embodiment of the above technical solution, an annular clamping groove with a V-shaped cross-section is provided on the circumferential surface of the positioning wheel.

[0011] The beneficial effects of the utility model are as follows: the online powder spreading device for substrates of the utility model can realize uniform and stable powder spreading on the substrates, the thickness of the powder layer is adjustable, and it can be adapted to the powder spreading of substrates of different specifications, and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a schematic diagram of the cross-sectional structure of the fabric hopper. DETAILED DESCRIPTION

[0014] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0015] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0016] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] like Figure 1-2 As shown, the substrate 34 is an online powder spreading device, which includes a bracket 1, on which a substrate conveying roller 2, a distribution hopper 3, and a powder hopper 4 are installed in sequence from bottom to top, a vibrating screen 5 is provided between the distribution hopper 3 and the powder hopper 4, the substrate conveying roller 2 is rotatably installed on the bracket 1, the distribution hopper 3 includes a hopper body 6 and a distribution section 7, a distribution cavity 8 is provided inside the distribution section 7, the distribution cavity 8 is connected to the inside of the hopper body 6, and a distribution port 9 connected to the distribution cavity 8 is provided at the lower end of the distribution section 7, the length direction of the distribution port 9 is parallel to the axial direction of the substrate conveying roller 2, the length of the distribution port 9 is adjustable, the vibrating screen 5 is driven to vibrate by a vibration driving mechanism, and a discharge port 10 is provided at the lower end of the powder hopper 4, and a valve is installed at the discharge port 10.

[0018] Furthermore, the two sides of the material distributing section 7 are respectively provided with adjustment ports 11, and the adjustment ports 11 are connected to the material distributing cavity 8. An adjustment block 12 is slidably installed in the adjustment port 11, and an inclined guide surface 13 is provided on the inner side of the adjustment block 12. A handle 14 is fixedly connected to the adjustment block 12. The material distributing section 7 is provided with a plurality of adjustment long holes 15, and the adjustment long holes 15 correspond to the handles 14 one by one, and the handles 14 pass through the corresponding adjustment long holes 15. By moving the adjustment block 12 through the handle 14 and changing the distance between the two adjustment blocks 12, the size range of the powder falling from the material distributing port 9 can be changed, so that the powder can be spread on the substrate 34 according to the set width coverage range. The online powder spreading device can adapt to the powder spreading needs of substrates 34 of different widths.

[0019] Furthermore, the two sides of the bracket 1 are fixedly connected with slide rails 16, the vibrating screen 5 is located between the slide rails 16, and a slider 17 is installed on the slide rails 16. A connecting shaft is provided between the slider 17 and the vibrating screen 5, one end of the connecting shaft is rotatably connected to the middle of one side of the vibrating screen 5, and the other end is fixedly connected to the slider 17. The lower surfaces of the two ends of the vibrating screen 5 are respectively provided with inclined surfaces 18, and support rollers 19 are respectively provided below the inclined surfaces 18. The two ends of the support rollers 19 are rotatably connected to the bracket 1, and the vibration drive mechanism includes a cylinder installed on the bracket 1, and the conveying shaft of the cylinder is connected to one of the sliders 17, and the conveying shaft of the cylinder is parallel to the slide rails 16. The cylinder drives the slider 17 to move, driving the vibrating screen 5 to move back and forth. In the process of the vibrating screen 5 moving back and forth, the cooperation of the inclined surface 18 and the support roller 19 is used to make the vibrating screen 5 swing, forming a regular vibration, and the powder on the vibrating screen 5 is evenly sieved and dropped into the distribution hopper 3 for distribution.

[0020] Furthermore, a fixed screen 20 is provided between the powder hopper 4 and the vibrating screen 5, and the fixed screen 20 is fixedly mounted on the bracket 1, and the mesh size of the fixed screen 20 is larger than the mesh size of the vibrating screen 5. The fixed screen 20 performs a preliminary screening of the powder to intercept large particles of powder and agglomerates.

[0021] Furthermore, a glue coating roller 22 is installed on the bracket 1, a glue box 21 is provided above the glue coating roller 22, a glue outlet is provided at the lower end of the glue box 21, and the glue coating roller 22 is rotatably installed on the bracket 1. The glue in the glue box 21 flows to the glue coating roller 22 through the glue outlet under the action of its own weight, and the glue coating roller 22 transfers the glue to the substrate after rotating, and the glue adheres to the falling powder.

[0022] Furthermore, both ends of the substrate conveying roller 2 are slidably connected with adjustment slide plates 23, which are slidably mounted on vertical slide rails 24, which are fixedly mounted on the bracket 1. A fixing block 25 is provided at the lower end of the vertical slide rail 24, which is provided with a threaded hole, and a support screw 26 is threadedly connected in the threaded hole, and the upper end of the support screw 26 supports the adjustment slide plate 23. By rotating the support screw 26, the height of the substrate conveying roller 2 can be adjusted, thereby adjusting the thickness of the adhesive layer.

[0023] Furthermore, each of the adjustment slide plates 23 is fixedly connected to a connecting plate 27, and a mounting slot 28 is provided on the connecting plate 27, and a fastening screw 29 is provided in the mounting slot 28. An upper locking nut 30 and a lower locking nut 31 are threadedly connected to the fastening screw 29, and the connecting plate 27 is clamped between the corresponding upper locking nut 30 and the lower locking nut 31, and a positioning wheel 32 is rotatably connected to the upper end of the fastening screw 29. The position and height between the two positioning wheels 32 can be adjusted by the upper locking nut 30 and the lower locking nut 31, and the state of the substrate when entering between the substrate conveying roller 2 and the distribution hopper 3 can be adjusted. The positioning wheel 32 enables the powder to fall on the substrate as required and form a specific powder covering layer.

[0024] Furthermore, an annular clamping groove 33 with a V-shaped cross section is provided on the circumferential surface of the positioning wheel 32 .

[0025] The method for spreading powder on the substrate 34 online comprises the following steps: the substrate 34 is pulled by a pulling device and passes between the substrate conveying roller 2 and the material distribution hopper 3, and the substrate conveying roller 2 holds the substrate 34; the positioning wheels 32 on both sides of the substrate 34 are used to position the substrate 34; the height of the substrate conveying roller 2 is adjusted by the support screw 26, so as to adjust the height of the substrate 34; the upper surface of the substrate 34 contacts the glue coating roller 22, and the glue coating roller 22 rolls to transfer the glue flowing out of the glue box 21 to the upper surface of the substrate 34 to form a glue layer; the flow rate of the powder at the discharge port 10 is controlled by a valve; the adjusting block 12 is moved by the handle 14, so as to change the position of the adjusting block 12 and the relative distance between the two adjusting blocks 12; after the powder flows out from the discharge port 10, it first passes through the fixed screen 20 for preliminary screening, then passes through the vibrating screen 5 and falls into the material distribution hopper 3, and evenly falls on the glue layer of the substrate 34 after passing through the material distribution cavity 8.

[0026] It is worth mentioning that the technical features such as the cylinder involved in this utility model patent application should be regarded as the prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected by conventional methods in the field, and should not be regarded as the invention point of this utility model patent. This utility model patent will not be further elaborated.

[0027] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field through logical analysis, reasoning or limited experiments based on the concept of the utility model on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. The substrate online powder spreading device is characterized by: The utility model comprises a bracket, on which a substrate conveying roller, a material distribution hopper and a powder hopper are sequentially installed from bottom to top, a vibrating screen is arranged between the material distribution hopper and the powder hopper, the substrate conveying roller is rotatably installed on the bracket, the material distribution hopper comprises a hopper body and a material distribution section, a material distribution cavity is arranged inside the material distribution section, the material distribution cavity is connected with the inside of the hopper body, a material distribution port connected with the material distribution cavity is arranged at the lower end of the material distribution section, the length direction of the material distribution port is parallel to the axial direction of the substrate conveying roller, the length of the material distribution port is adjustable, the vibrating screen is driven to vibrate by a vibrating driving mechanism, a material discharge port is arranged at the lower end of the powder hopper, and a valve is arranged at the material discharge port.

2. The substrate online powder spreading device according to claim 1, characterized in that: Adjustment ports are respectively provided on both sides of the cloth section, and the adjustment ports are connected to the cloth cavity. An adjustment block is slidably installed in the adjustment port, and an inclined guide surface is provided on the inner side of the adjustment block. A handle is fixedly connected to the adjustment block. A plurality of adjustment long holes are provided on the cloth section, and the adjustment long holes correspond to the handles one by one, and the handles pass through the corresponding adjustment long holes.

3. The substrate online powder spreading device according to claim 2, characterized in that: Slide rails are fixedly connected to both sides of the bracket, the vibrating screen is located between the slide rails, and a slider is installed on the slide rails. A connecting shaft is provided between the slider and the vibrating screen, one end of the connecting shaft is rotatably connected to the middle part of one side of the vibrating screen, and the other end is fixedly connected to the slider. Inclined surfaces are respectively provided on the lower surfaces of both ends of the vibrating screen, and support rollers are respectively provided below the inclined surfaces. Both ends of the support rollers are rotatably connected to the bracket, and the vibration driving mechanism includes a cylinder installed on the bracket, a conveying shaft of the cylinder is connected to one of the sliders, and the conveying shaft of the cylinder is parallel to the slide rail.

4. The substrate online powder spreading device according to claim 3, characterized in that: A fixed screen is arranged between the powder hopper and the vibrating screen. The fixed screen is fixedly mounted on the bracket. The mesh aperture of the fixed screen is larger than the mesh aperture of the vibrating screen.

5. The substrate online powder spreading device according to claim 4, characterized in that: A glue coating roller is installed on the bracket, a glue box is arranged above the glue coating roller, a glue outlet is arranged at the lower end of the glue box, and the glue coating roller is rotatably installed on the bracket.

6. The substrate online powder spreading device according to claim 5, characterized in that: The two ends of the substrate conveying roller are slidably connected with adjusting slides, which are slidably installed on vertical slide rails. The vertical slide rails are fixedly installed on the bracket. The lower end of the vertical slide rail is provided with a fixing block, and the fixing block is provided with a threaded hole. The threaded hole is threadedly connected with a supporting screw, and the upper end of the supporting screw supports the adjusting slide.

7. The substrate online powder spreading device according to claim 6, characterized in that: Each of the adjusting slide plates is fixedly connected with a connecting plate, a long mounting hole is provided on the connecting plate, a fastening screw is provided in the long mounting hole, an upper locking nut and a lower locking nut are threadedly connected to the fastening screw, the connecting plate is clamped between the corresponding upper locking nut and the lower locking nut, and a positioning wheel is rotatably connected to the upper end of the fastening screw.

8. The substrate online powder spreading device according to claim 7, characterized in that: An annular clamping groove with a V-shaped cross section is arranged on the circumferential surface of the positioning wheel.

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