Stirring and conveying device for carbon powder
By combining the design of limiting track, pushing structure, feeding structure, sealing and anti-collision structure and stirring structure, the problems of agglomeration, stratification and impact damage in the process of carbon powder conveying are solved, and stable and efficient powder conveying and forming quality are achieved.
Patent Information
- Application Number
- CN202520093259.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2024-12-31
- Filing Date
- 2025-01-15
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Existing carbon powder conveying devices are prone to causing powder agglomeration, stratification, and damage to the material blocks during the conveying process, and cannot effectively prevent impurities from being mixed in, affecting the quality and efficiency of powder pressing and molding.
The combination design of limiting track, pushing structure, feeding structure, sealing and anti-collision structure and stirring structure ensures that the powder does not agglomerate or separate during the conveying process, and prevents damage from impact through flexible sealing and avoids the mixing of impurities.
It achieves stable conveying of carbon powder, reduces waste, ensures the density and quality of the formed blocks, and improves production efficiency and forming accuracy.
Smart Images
Figure CN223822931U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of powder processing, is suitable for brush, mechanical carbon product and other compression molding products, especially suitable for single molding carbon bearing / shaft sleeve / bushing product's carbon powder molding aspect's carbon powder stirring conveying device. BACKGROUND
[0002] In the powder metallurgy industry, efficient and stable powder conveying mode can effectively ensure the precision and characteristics of product forming, but due to the different characteristics of different powders, such as carbon powder, agglomeration, arching, powder layering and other problems occur during use, which affects the quality of powder compression products, so conveying devices are often used to achieve the purpose of stable conveying of carbon powder.
[0003] When the prior art powder conveying device conveys powder, the powder is usually placed in a box or a conveying box, and the powder is conveyed to the bottom of the box by repeatedly conveying the box with a cylinder or repeatedly vibrating the powder conveying box at the position of the molding mold cavity. After the powder is compressed and formed by the compression tool, the formed block is pushed forward by the box. The box generally adopts a trapezoidal iron box, which is hollow inside to store carbon powder, and has an opening at the bottom to allow the powder in the box to fall into the groove of the machine table and be compressed into a block by the compression tool. When the box moves relative to the machine table, the box pushes the block lifted out of the groove by the compression tool to move forward. Because the lower surface of the iron box in contact with the machine table metal adopts a resin pad, the pad has high hardness, so the friction coefficient is large and hard friction is formed with the machine table metal. When pushing the successfully compressed block, there is a risk of hitting the block. In addition, repeated conveying or vibration of the box not only increases the production time, but also cannot guarantee that the powder will not be layered during conveying. When the box is pushed forward on the track by the cylinder, simple cylinder pushing or mechanical reciprocating motion cannot solve the layering phenomenon of the powder in the box during vibration, especially when metal powder is involved (because vibration can cause the particles of the powder to be graded), and the particles form agglomerates that cannot be dispersed (during powder conveying, the powder in the box moves as a whole, and the powder does not agglomerate due to disturbance). At the same time, when the cylinder pushes, the box is easy to form an obtuse angle with the track on the press table, which is not strong in guidance, and the hard resin pad at the bottom of the box will cause the box to be blocked (such as the front end of the box forming a hard collision with the track after a slight deviation, causing the box to be blocked).
[0004] Therefore, those skilled in the art urgently need a carbon powder conveying device that can solve the above problems during powder conveying. SUMMARY
[0005] In order to solve the prior art, the utility model provides a kind of stirring and conveying device for carbon powder, can efficiently and stably convey powder in the process of carbon powder pressing forming, so that powder does not fall in the material box due to agglomeration in the conveying process, powder does not agglomerate and stratify, and the density performance of the material block formed by pressing powder in sequence is stable, and the quality is good.
[0006] To achieve the above-mentioned purpose of the utility model, the utility model provides a kind of stirring and conveying device for carbon powder, including the material box for temporarily storing carbon powder and being provided with discharge port at bottom, in addition, it further includes: the limiting track for guiding the moving direction of material box and being installed on machine table;Pushing structure for connecting with material box and being used to push material box to move along limiting track;Feeding structure for connecting with the feed inlet of material box and being used to convey carbon powder into material box without accumulation;Sealing anti-collision structure for being arranged at the bottom of material box and being used to seal material box and prevent material block from being damaged when material block is pushed;Stirring structure for being arranged in material box and being used to prevent carbon powder from accumulating and stratifying in material box.
[0007] Preferably, the limiting track includes a pair of guide plates, and the material box is installed between the pair of guide plates.
[0008] Preferably, the pushing structure includes a cylinder, a motor crankshaft or a hydraulic cylinder connected with the material box and used to reciprocate the material box along the limiting track.
[0009] Preferably, the feeding structure includes: a hopper for receiving carbon powder;A pipeline connected with the outlet of the hopper at upper end and connected with the feed inlet of the material box at lower end;An anti-accumulation piece arranged in the pipeline and used to prevent carbon powder conveyed through the pipeline from accumulating in the pipeline.
[0010] Preferably, the anti-accumulation piece is a spring connected with the inner wall of the hopper or the upper part of the pipeline at one end and connected with the inner cavity of the material box at the other end.
[0011] Preferably, the sealing anti-collision structure is a felt pad arranged at the bottom of the material box and located at the periphery of the discharge port.
[0012] Preferably, the stirring structure includes: a rotating shaft rotatably installed on the material box, and the axial direction of the rotating shaft is perpendicular to the moving direction of the material box;A shell reamer fixedly installed on the rotating shaft and used to stir carbon powder in the material box to prevent carbon powder from accumulating and stratifying in the material box when the material box moves.
[0013] Further, it further includes an anti-jamming force transmission structure for transmitting the acting force of the pushing structure to the stirring structure and avoiding the material box and the limiting track from being jammed, which includes: a gear fixedly installed at one end of the rotating shaft;A toothed track installed on the machine table and located at one side of the limiting track, and the gear cooperates with the toothed track.
[0014] Compared with the prior art, the present invention provides a stirring and conveying device for carbon powder with the following advantages:
[0015] 1. The present invention provides a stirring and conveying device for carbon powder, which can efficiently and stably convey the powder during the carbon powder pressing and molding process. This prevents the powder from agglomerating and failing to fall into the material box during the conveying process. The powder will not clump or separate into layers. There is little powder waste and no impurities mixed in during the conveying process, which makes the density performance of the pressed and molded material stable and of good quality.
[0016] 2. This utility model relates to a carbon powder mixing and conveying device. The feeding structure can convey carbon powder into the material box without accumulation. The limiting track can guide the movement of the material box. The cooperation of the toothed rail and gears also ensures that the material box will not collide with the limiting track and get stuck during the powder conveying process. The smooth movement of the material box can ensure the smooth conveying of powder and the pressing of the material blocks. The sealing and anti-collision structure forms soft friction with the metal mechanical table of the machine, which can not only seal the material box and reduce powder waste, but also prevent impurities from mixing into the powder and affecting the quality of the powder pressed products. It can also prevent the material box from colliding and damaging the material blocks when pushing the forming blocks, thus affecting the quality of the blocks. The stirring structure can continuously stir the powder temporarily stored in the material box, effectively preventing the powder from accumulating and agglomerating in the material box and avoiding the occurrence of powder stratification.
[0017] The present invention will now be described in detail with reference to the accompanying drawings. Attached Figure Description
[0018] Figure 1 This is a perspective view of the carbon powder mixing and conveying device of this utility model (the pushing structure and feeding structure are not shown);
[0019] Figure 2 This is a front view of the carbon powder mixing and conveying device of this utility model;
[0020] Figure 3 This is a front view sectional view of the carbon powder mixing and conveying device of this utility model;
[0021] Figure 4 This is a right view of the carbon powder mixing and conveying device of this utility model. Detailed Implementation
[0022] like Figures 1-4 The figures shown are schematic diagrams of the carbon powder mixing and conveying device provided by this utility model from different perspectives. Figures 1-4 It can be seen that the carbon powder mixing and conveying device of this utility model includes: a material box 5 for temporarily storing carbon powder and having a discharge port at the bottom; and a material box 5 for installing on the machine base 8. Figure 1The utility model discloses a kind of carbon powder stirring and conveying devices, including the limit rail of guiding material box movement direction on part of machine platform shown in the figure); with the pushing structure for pushing material box to move along limit rail and being connected with material box;With the feeding structure for conveying carbon powder without accumulation into material box and being connected with the feed inlet of material box;Sealing anti-collision structure for sealing material box and preventing damage to material block when material box pushes material block is arranged at the bottom of material box;Stirring structure for preventing carbon powder from accumulating and stratifying in material box is arranged in material box.
[0023] Specifically, the limit rail of the carbon powder stirring and conveying device includes a pair of guide plates, which enclose a track space with the machine table. The material box is placed in the track space and can reciprocate in the space along the extension direction of the pair of guide plates.
[0024] The material box is hollow and used for temporarily storing carbon powder. An upper portion of the material box is provided with a feeding connector 7, and a bottom portion of the material box is provided with a discharging port. The material box can adopt a shape of a material box in the prior art. A sealing anti-collision structure is fixed on a surface around the discharging port at the bottom of the material box by means of gluing or other methods. The sealing anti-collision structure is a felt pad made of flexible and wear-resistant felt material. The thickness of the felt pad can be comparable to the thickness of a material block to be pressed and formed. The felt pad can seal the material box and the surface of the machine table to prevent carbon powder from leaking out of the gap between the material box and the machine table when the material box moves, thereby reducing the waste of carbon powder and preventing powder impurities from mixing into the carbon powder and affecting the quality of the carbon powder and the quality of the material block formed in the subsequent pressing process. In addition, when the material box moves on the machine table, the felt pad can form soft friction with the metal mechanical surface of the machine table, thereby avoiding hard friction between the material box and the surface of the machine table and the possible travel gap when a resin pad block is used in the prior art. When the material block pressed and formed is pushed forward by the material box, the felt pad contacts the material block to form flexible protection for the material block, so that the material block is not damaged.
[0025] The material box moves along the limit rail under the pushing of the pushing structure. The pushing structure includes a cylinder 12 or a motor crankshaft or a hydraulic cylinder connected with the material box for pushing the material box to reciprocate along the limit rail. Only the cylinder is shown in the figure. Hereinafter, the structure of the cylinder pushing the material box will be described by way of example.
[0026] As shown in Figure 4 , the pushing structure includes the cylinder 12. The cylinder body is supported by the cylinder support 13 located on one side (such as the rear side) of the machine table. The piston rod of the cylinder extends toward the limit rail. The extending end of the piston rod is connected with the rear end of the pull rod 11. The front end of the pull rod is fixedly connected with the rear side of the material box. When the cylinder works, the piston rod extends to push the material box to move forward along the limit rail (i.e., to move to the left of Figure 4 ). When the piston rod retracts, the material box is pulled to move backward (i.e., to move to the right of Figure 4 ).
[0027] When the hopper moves, the carbon powder temporarily stored in the hopper falls into the groove of the machine table through the discharge port, and then the powder entering the groove is pressed into a briquette by the pressing tool, and after the briquette is formed, the pressing tool is lifted to be flush with the machine table surface, and then the hopper is pushed forward. The carbon powder in the hopper is sent into the hopper through the feeding structure. As shown in Figures 2-4 , the feeding structure comprises a hopper 10 for receiving carbon powder, which is supported by a support and fixed, and the outlet of the hopper is higher than the hopper; a pipe 9 connected to the outlet of the hopper at the upper end and connected to the feed port of the hopper feed joint at the lower end; an anti-accumulation member 14 arranged in the pipe for preventing the carbon powder transported through the pipe from accumulating in the pipe.
[0028] Among them, the pipe can adopt a large-diameter PVC steel wire hose (also known as a flexible spring pipe), which can be appropriately bent according to needs, and is elongated or shortened with the reciprocating movement of the hopper, and is connected at an angle of 45° (as shown in Figure 1 ) with the feed port of the hopper joint, and the hopper can drive the pipe to vibrate when moving. The anti-accumulation member arranged in the pipe can be a spring connected to the inner wall of the upper part of the hopper or the pipe at one end and connected to the inner cavity of the hopper at the other end. When the cylinder pushes the hopper to move forward or pulls the hopper to move backward, the spring will be elongated or shortened under the driving of the hopper, and the expansion and contraction of the spring will disperse and unblock the possibly agglomerated and blocked powder entering the pipe from the hopper, ensuring that the powder is smoothly transported from the pipe to the hopper. In addition, the accumulation member can also be made of other materials with certain elasticity in the prior art.
[0029] In order to prevent the powder from accumulating, agglomerating and stratifying in the hopper during the process of transporting the carbon powder into the groove, the utility model also sets a stirring structure on the hopper, which comprises: a rotating shaft 4 rotatably installed on the hopper, the axial direction of which is perpendicular to the moving direction of the hopper, and both ends thereof extend out of the hopper; a reamer 6 fixedly installed on the rotating shaft for stirring the carbon powder in the hopper to prevent it from accumulating, agglomerating and stratifying in the hopper when the hopper moves. The powder temporarily stored in the hopper is continuously stirred by the rotating reamer. The reamer can adopt a multi-tooth fence rolling type stirring knife as shown in Figure 1 , Figure 3 .
[0030] In order to make the reamer continuously rotate in the material box to stir the material powder, the utility model also includes a anti-jamming force transmission structure for transmitting the acting force of the pushing structure to the stirring structure and avoiding the material box and the limiting track from being jammed, which comprises: a gear 3 fixedly installed at one end of the rotating shaft extending out of the material box; a toothed track 2 for being installed on the machine table and located at one side (such as the upper side or the outer side) of the limiting track, which cooperates with the gear, when the material box moves along the limiting track under the action of the pushing structure, the gear simultaneously rolls on the toothed track, the rotation of the gear drives the rotating shaft to rotate, so that the reamer installed on the rotating shaft rotates with it. When the material box moves along the limiting track under the action of the pushing structure, the cooperation of the toothed track and the gear can correct the swing of the material box, thereby avoiding the material box from being jammed with the limiting track.
[0031] In conclusion, the utility model discloses the stirring and conveying device for carbon powder material, the anti-accumulation piece can continuously vibrate with the extension during the movement of the material box, effectively prevents the powder from being accumulated and blocking the pipeline, so that the carbon powder material can be conveyed into the material box without accumulation, the material box moves between the pair of guide plates of the limiting track, and the cooperation of the toothed track and the gear makes the material box not collide with the limiting track during the powder conveying process, the felt pad can seal the gap between the bottom of the material box and the machine table, and form the soft friction between the material box and the metal mechanical table surface of the machine table, which can seal the material box, reduce the waste of the powder, prevent impurities from mixing into the powder and affecting the quality of the pressed product, prevent the material box from being damaged by rigid collision when pushing the formed material block, and affect the quality of the material block pressed subsequently, the stirring structure can continuously stir the temporarily stored powder in the material box, effectively prevent the powder from being accumulated and agglomerated in the material box, and avoid the occurrence of powder stratification. In addition, the parts are simple to disassemble, have no too many connecting structural members, and can be independently disassembled, so that the maintenance and assembly are quick and simple.
[0032] Although the utility model has been described in detail above, the utility model is not limited to this, and the person skilled in the art can modify according to the principle of the utility model, therefore, all kinds of modifications according to the principle of the utility model should be understood as falling into the protection scope of the utility model.
Claims
1. A mixing and conveying device for carbon powder, comprising a material box for temporarily storing carbon powder and having a discharge port at the bottom, characterized in that, Also includes: A limiting track for guiding the movement direction of the material box when mounted on a machine base; A push structure connected to the material box and used to push the material box along the limiting track; A feeding structure connected to the feed inlet of the material box for conveying carbon powder into the material box without accumulation; A sealing and anti-collision structure located at the bottom of the material box to seal the material box and prevent damage to the material block when the material box pushes the molding block; A stirring structure installed inside the material box to prevent carbon powder from accumulating, agglomerating, and separating.
2. The mixing and conveying device for carbon powder according to claim 1, characterized in that, The limiting track includes a pair of guide plates, and the material box is installed between the pair of guide plates.
3. The mixing and conveying device for carbon powder according to claim 1 or 2, characterized in that, The pushing structure includes a cylinder, motor crankshaft, or hydraulic cylinder connected to the material box for pushing the material box to reciprocate along the limiting track.
4. The mixing and conveying device for carbon powder according to claim 3, characterized in that, The feeding structure includes: A hopper for receiving carbon powder; The upper end of the pipe connects to the outlet of the hopper, and the lower end connects to the inlet of the material box; An anti-accumulation component installed inside a pipeline to prevent carbon powder transported through the pipeline from accumulating inside the pipeline.
5. The mixing and conveying device for carbon powder according to claim 4, characterized in that, The anti-accumulation component is a spring with one end connected to the inner wall of the hopper or the upper part of the pipe and the other end connected to the inner cavity of the material box.
6. The mixing and conveying device for carbon powder according to claim 1, characterized in that, The sealing and anti-collision structure is a felt pad located at the bottom of the material box and on the outer periphery of its outlet.
7. The mixing and conveying device for carbon powder according to claim 1, characterized in that, The stirring structure includes: Rotate the shaft mounted on the material box, with its axis perpendicular to the direction of movement of the material box; A reamer is fixedly mounted on the rotating shaft to stir the carbon powder in the material box as it moves, preventing it from accumulating, agglomerating, and separating within the material box.
8. The mixing and conveying device for carbon powder according to claim 7, characterized in that, It also includes an anti-jamming force transmission structure for transmitting the force of the pushing structure to the stirring structure and preventing the material box from jamming with the limiting track, which includes: A gear fixedly installed at one end of the rotating shaft; A toothed rail for mounting on a machine base and located on one side of the limiting rail, which engages with a gear.