On-load powder preparation device

Abstract

The invention discloses a tape-loaded powder preparation device, and relates to the technical field of powder extrusion and clearance wrapping, the tape-loaded powder preparation device comprises a tape winding structure, a tape ironing and powder pressing structure, a heating structure and a powder vibrating structure, the powder vibrating structure is connected to the tape winding structure, and the heating structure is connected to the tape ironing and powder pressing structure; the tape ironing and powder pressing structure and the tape winding structure are driven by a driving structure and are in synchronous transmission connection; the heating structure comprises a heating copper plate and a ceramic heating core which is arranged on the left side of the heating copper plate. According to the belt-loaded powder preparation device, powder is supplied through micro-amplitude vibration of the linear motor, the driving motor drives the polyethylene belt to move, the belt pressing wheel extrudes powder, then the polyethylene belt is subjected to secondary pressing after heating, and therefore the powder is wrapped in the powder, and finally the prepared belt-loaded powder is uniform, not prone to falling off, firm in sealing and accurate in temperature control; the method not only can be applied to preparing micro-nano powder by powder electric explosion, but also can solve the difficulty of powder continuous forming in the powder electric explosion process.

Description

Technical Field

[0001] This invention relates to the field of powder extrusion with gaps and encapsulation technology, and in particular to a powder preparation device with a carrier. Background Technology

[0002] Powder extrusion with gaps is a widely used technique in materials preparation and other fields. It is primarily used to uniformly encapsulate powder within a specific carrier to meet diverse application requirements. Based on the principles of extrusion and encapsulation, the powder is first placed within the gaps of a carrier, and then external force is applied to compress the powder, causing the carrier to encapsulate it. In practice, this is typically accomplished using a combination of various structural elements.

[0003] The prepared carrier powder is typically used in the electro-explosion method for preparing micro / nano powders. By applying a high voltage and high current across the carrier powder, the powder gains significant energy within a short time, resulting in an electro-explosion to prepare micro / nano powders. Compared to the wire electro-explosion method, the energy required for the carrier powder electro-explosion is less than that of the wire electro-explosion because the explosive medium is powder, making its production efficiency far greater. Therefore, preparing carrier powder and performing electro-explosion has become a widely used method for preparing micro / nano powders.

[0004] Existing technologies for powder-carrying equipment suffer from problems such as uneven powder delivery, unreliable belt sealing, poor heating temperature control accuracy, large size, and poor mobility. Summary of the Invention

[0005] The purpose of this invention is to provide a carrier powder preparation device to solve the problems in the background art mentioned above. It provides a simpler, more convenient, and more accurate carrier powder preparation device for preparing micro and nano powders by powder electro-explosion. The final carrier powder is uniform, not easy to fall off, has a reliable seal, and precise temperature control. The prepared carrier powder can not only be used to prepare micro and nano powders by powder electro-explosion, but also solve the difficulty of continuous powder forming during the powder electro-explosion process.

[0006] To achieve the above objectives, the present invention provides a powder preparation device with a belt, including a belt winding structure, a belt pressing structure, a heating structure, and a powder shaking structure. The powder shaking structure is connected to the belt winding structure, the heating structure is connected to the belt pressing structure, and the belt pressing structure and the belt winding structure are synchronously connected by a driving structure. The heating structure includes a heating copper plate and a ceramic heating core, with the ceramic heating core positioned on the left side of the heating copper plate.

[0007] Preferably, the heating copper plate is connected to the stud via a connecting rod, and the stud is connected to the hot-pressing powder structure.

[0008] Preferably, the winding structure includes a first support frame, a take-up reel, a first guide wheel, and a feed reel. The shaft of the feed reel is connected to the bottom of the first support frame via a fixing plate. The first guide wheel is connected to the middle of the first support frame via a connecting frame. The take-up reel is passed through a fixing rod and a reciprocating screw. One end of the reciprocating screw is connected to the first support frame, and the other end of the reciprocating screw is connected to a gear set. The reciprocating lead screw is provided with two bearing mating plates, and the two ends of the fixed rod are connected to the two bearing mating plates. A shift fork plate is provided between the bearing mating plate on the right side and the first support frame.

[0009] Preferably, a detection wheel is provided below the take-up reel, the detection wheel is connected to the shift fork shaft via a connecting plate, and the shift fork shaft is connected to the first support frame.

[0010] Preferably, a U-shaped support frame is fixedly provided on the shift fork plate, and a support wheel is rotatably connected to the U-shaped support frame. The support wheel abuts against the bearing mating plate on the right side.

[0011] Preferably, the hot-pressing powder structure includes a second support frame, a first pressing roller, a second pressing roller, a second guide roller, and a pulley. The pulley is connected to the second support frame via a pulley shaft. The first pressing roller, the second pressing roller, and the second guide roller are all disposed on the outer periphery of the pulley. The second guide roller, the first pressing roller, and the second pressing roller are respectively connected to the second support frame, the connecting frame, and the stud via a receiving plate. The stud is connected to the second support frame. The first pressure roller is a tapered roller.

[0012] Preferably, the drive structure includes a drive motor connected to the right side of the pulley shaft, the drive motor being connected to one end of a transmission shaft, the other end of the transmission shaft being disposed in a groove of a transmission block, the transmission block being connected to the shift fork shaft, and a friction wheel being connected to the end of the transmission shaft, the friction wheel being in contact with the bearing mating plate, and the friction wheel being disposed inside the groove.

[0013] Preferably, the powder-vibrating structure includes a capillary funnel and a linear motor. The two ends of the linear motor are connected to a connecting column via elastic guide rails. The connecting column is connected to the connecting frame. The capillary funnel is located on the left side of the linear motor and is fixedly connected to the elastic guide rails.

[0014] Preferably, a polyethylene belt is wound on the feed reel, the polyethylene belt passes through the first guide wheel and is wound around the pulley, and then connected to the take-up reel via the second guide wheel, and an embedding groove is provided on the top of the polyethylene belt.

[0015] Preferably, the drive motor, the ceramic heating core, and the linear motor are all controlled by an FPGA.

[0016] Therefore, this invention employs the aforementioned powder-carrying device, which uses a linear motor to vibrate and feed powder at small amplitudes, a drive motor to move a polyethylene belt, a pressure roller to squeeze the powder, and heating the polyethylene belt to close it, thus encapsulating the powder within the polyethylene belt. The resulting powder-carrying device is uniform and does not easily fall off, making it suitable for the preparation of micro- and nano-powders and significantly improving preparation efficiency. This device uses a contact heating copper plate for more concentrated heating and adjustable temperature. The linear motor provides uniform and controllable vibration. The FPGA control ensures more precise and uniform powder feeding. The device is also small in size, making it easy to move and disassemble.

[0017] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of the powder preparation device according to the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an embodiment of the powder preparation device according to the present invention. Figure 2 ; Figure 3 This is a front view of an embodiment of the powder preparation apparatus of the present invention; Figure 4 This is a schematic diagram of the winding structure of a powder preparation device according to the present invention. Figure 1 ; Figure 5 This is a schematic diagram of the winding structure of a powder preparation device according to the present invention. Figure 2 ; Figure 6 for Figure 5 Enlarged schematic diagram of the structure at point A; Figure 7 This is a schematic diagram of the winding structure of a powder preparation device according to the present invention. Figure 3 ; Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point B; Figure 9 This is a schematic diagram of the hot-pressing powder structure of a powder preparation device with a powder carrier according to the present invention; Figure 10 This is a schematic diagram of the heating structure of a powder preparation device according to the present invention; Figure 11 This is a schematic diagram of a powder-shaking structure with a powder-carrying preparation device according to the present invention; Figure 12 for Figure 11 Enlarged schematic diagram of the structure at point C; Figure 13 This is a cross-sectional view of a polyethylene belt with a powder-carrying preparation device according to the present invention; Figure 14 This is a schematic diagram of a powder preparation device according to the present invention; Reference numerals: 1. Winding structure; 101. First support frame; 102. Feeding reel; 103. First guide wheel; 104. Taking reel; 105. Fixing plate; 106. Connecting frame; 107. Reciprocating screw; 108. Fixing rod; 109. Bearing mating plate; 110. Shift fork plate; 111. Detection wheel; 112. Connecting plate; 113. Shift fork shaft; 114. U-shaped support frame; 115. Support wheel; 2. Hot-pressing and powder-pressing structure; 21. Second support frame; 22. First pressure wheel; 23. Second pressure wheel; 24. Second guide wheel; 1. **Pulley;** 25. **Pulley;** 26. **Supporting Plate;** 3. **Heating Structure;** 31. **Heating Copper Plate;** 32. **Ceramic Heating Core;** 33. **Connecting Rod;** 34. **Stud;** 4. **Powder-Shocking Structure;** 41. **Capillary Funnel;** 42. **Linear Motor;** 43. **Elastic Guide Rail;** 44. **Connecting Column;** 5. **Drive Structure;** 51. **Drive Motor;** 52. **Drive Shaft;** 53. **Drive Block;** 54. **Friction Wheel;** 6. **Polyethylene Belt;** 7. **Gear Set;** 71. **First Pinion;** 72. **Second Pinion;** 73. **First Large Gear;** 74. **Second Large Gear;** 75. **Connecting Shaft. Detailed Implementation

[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0021] Example Please see Figures 1-14 This invention provides a powder preparation apparatus with a carrier. For example... Figure 1As shown, the device includes a wrapping structure 1, a pressing and powdering structure 2, a heating structure 3, and a powder-vibrating structure 4, with the powder-vibrating structure 4 connected to the wrapping structure 1. The heating structure 3 is connected to the pressing and powdering structure 2, and the pressing and powdering structure 2 and the wrapping structure 1 are connected by a drive structure 5. Figure 2 As shown, the drive structure 5 consists of a drive motor 51, a transmission shaft 52, and a transmission block 53.

[0022] like Figure 4 As shown, the winding structure 1 includes a first support frame 101, a feed reel 102, a first guide wheel 103, and a take-up reel 104. The shaft of the feed reel 102 is connected to the bottom of the first support frame 101 via a fixing plate 105, and the feed reel 102 is fixed to the lower part of the take-up reel 104. The first guide wheel 103 is connected to the middle of the first support frame 101 via a connecting frame 106. The take-up reel 104 is passed through a fixing rod 108 and a reciprocating screw 107. The fixing rod 108 drives the take-up reel 104 to rotate, and the reciprocating screw 107 rotates, causing the take-up reel 104 to reciprocate left and right. The reciprocating distance of the reciprocating screw is exactly the width of the polyethylene belt, ultimately evenly winding the belt-loaded powder onto the take-up reel. Figure 7 As shown, a detection wheel 111 is provided below the take-up reel 104. The detection wheel 111 is connected to the shift fork shaft 113 through the connecting plate 112. The shift fork shaft 113 is connected to the first support frame 101.

[0023] like Figure 4 As shown, the reciprocating screw 107 is provided with two bearing mating plates 109, and the two ends of the fixing rod 108 are connected to the two bearing mating plates 109. A shift fork plate 110 is provided between the right bearing mating plate 109 and the first support frame 101. Figure 5 and Figure 6 As shown, a U-shaped support frame 114 is fixedly installed on the shift fork plate 110, and a support wheel 115 is rotatably connected to the U-shaped support frame 114. The support wheel 115 abuts against the right bearing mating plate 109.

[0024] like Figure 7 and Figure 8As shown, one end of the reciprocating screw 107 passes through the bearing mating plate 109 and is connected to the first support frame 101 via a bearing. The other end of the reciprocating screw 107 passes through the bearing mating plate 109 and is fixedly connected to the first large gear 73 and the second large gear 74 located inside the first support frame 101. The first large gear 73 is fixedly connected to the bearing mating plate 109 by screws. The first large gear 73 meshes with the first small gear 71 located above it. The first small gear 71 is fixedly connected to one end of the connecting shaft 75. The other end of the connecting shaft 75 is fixedly connected to the second small gear 72, which meshes with the second large gear 74. The connecting shaft is connected to the shift fork plate 110 via a bearing. The gear set 7 creates a speed difference between the reciprocating screw 107 and the fixed rod 108, causing the take-up reel to reciprocate on the reciprocating screw. The friction wheel 54 drives the bearing mating plate 109 to rotate, which in turn drives the first large gear 73 to rotate. The first large gear 73 drives the first small gear 71 that meshes with it to rotate. Through the transmission action of the connecting shaft 75, the second small gear 72 is driven to rotate. The second small gear 72 drives the second large gear 74 to rotate, which in turn drives the reciprocating screw 107 to rotate, causing the take-up reel 104 to reciprocate on it.

[0025] like Figure 9 As shown, the powder pressing structure 2 includes a second support frame 21, a first pressing roller 22, a second pressing roller 23, a second guide roller 24, and a pulley 25. The pulley 25 is connected to the second support frame 21 via a shaft. The first pressing roller 22, the second pressing roller 23, and the second guide roller 24 are all located on the outer periphery of the pulley 25. The second guide roller 24, the first pressing roller 22, and the second pressing roller 23 are respectively connected to the second support frame 21, the connecting frame 106, and the stud 34 via a receiving plate 26. The stud 34 is connected to the second support frame 21. The first pressing roller 22 is fixed to the top of the pulley and is designed as a conical roller to improve the effect of pressing the powder into the polyethylene belt. The second pressing roller 23 is fixed to the lower side of the heating copper plate 31, squeezing the heated polyethylene belt 6 to close it, so that the polyethylene belt 6 wraps the powder inside. The second guide roller 24 is located to the lower side of the pulley, guiding the closed polyethylene belt 6 to the collection reel 104 for collection.

[0026] like Figure 10 As shown, the heating structure 3 includes a heating copper plate 31 and a ceramic heating core 32. The ceramic heating core 32 is located on the left side of the heating copper plate 31 to heat the polyethylene strip. The heating copper plate 31 is connected to a stud 34 via a connecting rod 33, and the stud 34 is connected to the hot-pressing powder structure 2.

[0027] like Figure 11 and Figure 12As shown, the powder-vibrating structure 4 includes a capillary funnel 41 and a linear motor 42. The two ends of the linear motor 42 are connected to a connecting post 44 via elastic guide rails 43. The connecting post 44 is connected to a connecting frame 106. The capillary funnel 41 is located to the left of the linear motor 42 and is fixedly connected to the elastic guide rails 43. The linear motor vibrates the capillary funnel via FPGA control, causing the powder to fall into the polyethylene belt.

[0028] like Figure 5 and Figure 6 As shown, the drive structure 5 includes a drive motor 51 connected to the right side of the pulley shaft. One end of the drive shaft 52 is connected to the drive motor 51, and the other end of the drive shaft 52 is disposed in the groove of the transmission block 53. The transmission block 53 is connected to the shift fork shaft 113. A friction wheel 54 is connected to the end of the transmission shaft 52. The friction wheel 54 is in contact with the bearing mating plate 109 and is disposed inside the groove. The drive motor 51 is used to control the movement of the pulley 25. The transmission shaft 52 connects the pulley 25 and the friction wheel 54. When the drive motor 51 is started, it drives the transmission shaft 52 to rotate, which in turn drives the friction wheel 54 to rotate. The friction wheel 54 drives the bearing mating plate 109 to rotate, and drives the take-up reel 104 to rotate through the fixing rod 108 fixed on it. As more and more polyethylene tape 6 is collected, the linear speed of the tape reel 104 increases, causing the detection wheel 111 to rotate outward. The shift fork shaft 113 rotates, driving the transmission block 53 to rotate downward. The groove on the block pushes the friction wheel 54 to move outward toward the bearing mating plate 109 to match its speed.

[0029] A polyethylene belt 6 is wound around the tape reel 102, such as Figure 13 As shown, the cross-section of polyethylene strip 6 is semi-circular, as... Figure 3 As shown, the polyethylene belt 6 passes through the first guide wheel 103 and the feed reel 102 and is wound around the pulley 25. The top of the polyethylene belt 6 is provided with an embedding groove to facilitate receiving powder.

[0030] The movement of the drive motor 51, the heating temperature of the ceramic heating core 32, and the vibration frequency of the linear motor 42 are all controlled by an FPGA, such as... Figure 14 The specific control method is shown. The drive motor 51 is controlled by the FPGA. The drive motor 51 drives the pulley 25 and the transmission shaft 52 to move. At the same time, it controls the heating of the ceramic heating core 32 and the vibration of the linear motor 42. The surface temperature of the polyethylene belt is detected by a temperature sensor. The temperature sensor is installed on the heating copper plate 31 and located below the ceramic heating core 32. The temperature sensor is connected to the FPGA and transmits the detection results to the FPGA. Finally, the experimental information such as temperature and vibration frequency is displayed on the LCD screen.

[0031] In practical use, such as Figure 3As shown, the empty polyethylene tape 6 is wound on the feed reel 102. Driven by the drive motor 51, it passes through the first guide wheel 103 to reach the capillary funnel 41. The linear motor 42 vibrates the capillary funnel 41, causing the powder in the capillary funnel 41 to fall into the embedding groove of the polyethylene tape 6. Then, the first pressure roller 22 squeezes the powder in the embedding groove. The heating copper plate 31 then heats the polyethylene tape 6 to close it. The second pressure roller 23 squeezes it to make it more compact. Finally, the tape returns to the take-up reel 104 through the second guide roller 24 and is finally collected in the take-up reel 104.

[0032] Therefore, the present invention employs the aforementioned powder-carrying device, which uses a linear motor to vibrate and feed powder with micro-amplitude vibration, a drive motor to drive a polyethylene belt to move, a pressure roller to squeeze the powder, and heats the polyethylene belt to close it, thus wrapping the powder in the polyethylene belt. The resulting powder-carrying device produces uniform and controllable powder that is not easily detached, which is used for the preparation of micro and nano powders and significantly improves the preparation efficiency.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the technical solutions of the present invention, and these modifications or equivalent substitutions cannot cause the modified technical solutions to deviate from the spirit and scope of the technical solutions of the present invention.

Claims

1. A device for the preparation of a band loaded powder, characterized in that: The device comprises a winding structure, a hot tape powder pressing structure, a heating structure and a powder shaking structure, the powder shaking structure is connected to the winding structure, the heating structure is connected to the hot tape powder pressing structure, and the hot tape powder pressing structure and the winding structure are synchronously driven by a driving structure. The heating structure comprises a heating copper plate and a ceramic heating core, and the ceramic heating core is arranged on the left side of the heating copper plate.

2. A device for preparing a load of powder according to claim 1, characterized in that: The heating copper plate is connected to a stud through a connecting rod, and the stud is connected to the hot tape powder pressing structure.

3. A device for the preparation of a load of powder according to claim 2, characterized in that: The winding structure comprises a first support frame, a tape winding disc, a first guide wheel and a tape feeding disc, the disc shaft of the tape feeding disc is connected to the bottom of the first support frame through a fixing plate, the first guide wheel is connected to the middle of the first support frame through a connecting frame, the tape winding disc is penetrated by a fixing rod and a reciprocating lead screw, one end of the reciprocating lead screw is connected to the first support frame, and the other end of the reciprocating lead screw is connected to a gear set. Two bearing matching plates are arranged on the reciprocating lead screw, and the two ends of the fixing rod are connected to the two bearing matching plates, and a yoke plate is arranged between the right bearing matching plate and the first support frame.

4. A device for the preparation of a load of powder according to claim 3, characterized in that: A detection wheel is arranged below the tape winding disc, the detection wheel is connected to a yoke shaft through a connecting plate, and the yoke shaft is connected to the first support frame.

5. A device for the preparation of a load of powder according to claim 4, characterized in that: A U-shaped support frame is fixedly arranged on the yoke plate, a support wheel is rotatably connected to the U-shaped support frame, and the support wheel abuts against the right bearing matching plate.

6. A device for the preparation of a load of powder according to claim 5, characterized in that: The hot tape powder pressing structure comprises a second support frame, a first tape pressing wheel, a second tape pressing wheel, a second guide wheel and a belt wheel, the belt wheel is connected to the second support frame through a belt wheel shaft, the first tape pressing wheel, the second tape pressing wheel and the second guide wheel are arranged on the outer periphery of the belt wheel, the second guide wheel, the first tape pressing wheel and the second tape pressing wheel are respectively connected to the second support frame, the connecting frame and the stud through bearing plates, and the stud is connected to the second support frame. The first tape pressing wheel is a conical wheel.

7. A device for the preparation of a load of powder according to claim 6, characterized in that: The driving structure comprises a driving motor connected to the right side of the belt wheel shaft, one end of the driving motor is connected to a transmission shaft, the other end of the transmission shaft is arranged in a groove of a transmission block, the transmission block is connected to the yoke shaft, the end of the transmission shaft is connected to a friction wheel, the friction wheel is in contact with the bearing matching plate, and the friction wheel is arranged on the inner side of the groove.

8. A device for the preparation of a load of powder according to claim 7, characterized in that: The powder shaking structure comprises a capillary funnel and a linear motor, the two ends of the linear motor are connected to a connecting column through elastic guide rails, the connecting column is connected to the connecting frame, the capillary funnel is arranged on the left side of the linear motor, and the capillary funnel is fixedly connected to the elastic guide rails.

9. A device for the production of a load powder according to claim 8, characterized in that A polyethylene tape is wound on the tape feeding disc, the polyethylene tape is wound on the belt wheel after penetrating through the first guide wheel, is connected to the tape winding disc through the second guide wheel, and the top of the polyethylene tape is provided with an embedded groove.

10. A device for the preparation of a load of powder according to claim 9, characterized in that: The driving motor, the ceramic heating core and the linear motor are all controlled by an FPGA.

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