CN114986969B - Powder hot-press molding equipment - Google Patents
Powder hot-press molding equipment Download PDFInfo
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- CN114986969B CN114986969B CN202210536259.2A CN202210536259A CN114986969B CN 114986969 B CN114986969 B CN 114986969B CN 202210536259 A CN202210536259 A CN 202210536259A CN 114986969 B CN114986969 B CN 114986969B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/02—Cleaning by the force of jets, e.g. blowing-out cavities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0082—Dust eliminating means; Mould or press ram cleaning means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/32—Discharging presses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The application relates to powder hot-press molding equipment, which comprises a hot-press molding assembly; the powder feeding assembly comprises an upper orifice plate positioned at one side of the hot press and horizontally sliding into a forming channel of the hot press, and a supporting plate group which is propped against the lower end of the upper orifice plate and moves along with the upper orifice plate, wherein the upper orifice plate is uniformly provided with a material distributing hole for receiving powder, and the supporting plate group horizontally moves perpendicular to the moving direction of the upper orifice plate, so that the opening at the lower end of the material distributing hole is opened or closed, and the powder in the material distributing hole falls into a forming unit of the hot press; the powder feeding assembly comprises a feeding box which is abutted against the upper end surface of the upper port plate and horizontally moves and drops powder into the distributing hole; and the molding blanking assembly comprises a clamping plate group and a clamping unit, wherein the clamping plate group is positioned on one side of the hot press far away from the upper orifice plate and horizontally moves into a molding channel of the hot press. The method has the characteristics of reducing the probability of advanced solidification, improving the rate of finished products of hot press forming, improving the production efficiency and the like.
Description
Technical Field
The application relates to the technical field of powder forming, in particular to powder hot-press forming equipment.
Background
Currently, powder hot pressing (hot-pressing of powder) is a method of combining press forming of a powder compact and powder sintering, abbreviated as hot pressing. Hot pressing is a thermoforming technique that has been developed and applied earlier in powder metallurgy. In 1912, germany issued a patent on manufacturing compacts from tungsten powder and tungsten carbide powder 211 using hot pressing. In 1926-1927, germany used hot pressing technology to manufacture cemented carbide. Since 1930, hot pressing has progressed more rapidly, mainly for large cemented carbide products, refractory compounds, and modern ceramics. Sometimes, powder metallurgy high-speed steel and copper-based powder products are also hot pressed. At present, new technologies such as vacuum hot pressing, hot isostatic pressing and the like are developed.
The traditional semiautomatic open type flat vulcanizing machine has the advantages that the equipment design does not consider the form of materials, the powdery raw materials with low density are easy to raise dust, the field is difficult to manage and control, the mess is normal, and the environment requirements of increasingly standard cannot be met; the operation interface is simple, so that the labor cost required to be operated is high, and one person can only operate one operation.
When the traditional injection molding machine is used, the formula is unknown, the raw materials can only be coarse particles, the formed product can only be used in the low-end market, and the density is often not standard and can not be used as a good product; the production efficiency is low, at most, only 1 mold cavity can be produced for 8 mold cavities per 30 seconds, and the injection production efficiency is low; the cost of raw materials is high: the waste of the intermediate waste materials such as the runner and the glue inlet is too great. No technology is needed for recycling, and the preparation is not good;
the hot press forming device generally comprises a hot press which is vertically arranged, a hot press forming upper plate positioned at the stamping forming end of the hot press and close to the upper side, and a hot press forming lower plate positioned close to the lower side, wherein the hot press forming upper plate vertically moves downwards, the hot press forming lower plate vertically moves upwards and is matched with the hot press forming upper plate, forming units are uniformly arranged between the hot press forming upper plate and the hot press forming lower plate, and forming channels are formed between the hot press forming upper plate and the hot press forming lower plate.
The existing annular product is a sealing hot-pressed graphite ring for a cooling pump of a new energy automobile, the volume of the sealing hot-pressed graphite ring is smaller, the structure is simpler, the amount of required powder is smaller, after the first hot-press forming of a hot press, a plate under the hot-press forming of the hot press has a certain temperature, at the moment, the powder is directly placed into a forming unit one by one, and the residual temperature can solidify the powder in part of the forming unit, so that the quality of the product is uneven in the process of formal hot-press forming, and the yield of the hot-press forming is affected.
Disclosure of Invention
In order to improve the rate of finished products of hot press forming, the application provides powder hot press forming equipment.
The above object of the present application is achieved by the following technical solutions:
a powder hot press molding apparatus includes a machine frame,
the hot press molding assembly comprises a hot press which is vertically arranged;
the powder feeding assembly comprises an upper orifice plate positioned at one side of the hot press and horizontally sliding into a forming channel of the hot press, and a supporting plate group which is propped against the lower end of the upper orifice plate and moves along with the upper orifice plate, wherein the upper orifice plate is uniformly provided with a material distributing hole for receiving powder, and the supporting plate group horizontally moves perpendicular to the moving direction of the upper orifice plate, so that the opening at the lower end of the material distributing hole is opened or closed, and the powder in the material distributing hole falls into a forming unit of the hot press;
the powder feeding assembly comprises a feeding box which is abutted against the upper end face of the upper port plate and moves horizontally, and the feeding box uniformly drops powder into the distributing holes;
the molding blanking assembly comprises a clamping plate group which is positioned on one side of the hot press away from the upper port plate and horizontally moves to the inside of the molding channel of the hot press, and a clamping unit which is arranged at the lower end of the clamping plate group and used for clamping molded products.
Through adopting above-mentioned technical scheme, when producing the product through this powder hot briquetting equipment, powder storage is in last magazine, in the feed opening of last mouth board is evenly fallen into through last magazine, then in last mouth board and the supporting plate group together horizontal migration to the shaping passageway, the supporting plate group horizontal slip for the powder that is located in the feed opening falls down to the shaping unit, and the supporting plate group resets to one side along with last mouth board after reset to last mouth board lower extreme again, and then hot briquetting is carried out to the powder that the hot briquetting machine compound die is located in the shaping unit, after the shaping, the clamping plate group horizontal migration is in the shaping passageway and through the clamping unit with the product clamp of shaping, then resets, thereby accomplish the complete production process of product. In this scheme, through setting up powder feeding subassembly for the powder carries out the material loading in advance in hot press one side, will fall into the powder of each shaping unit separately, later one with the material loading and fall into shaping unit simultaneously in, then quick compound die carries out hot briquetting, thereby make the quality of same batch of product more even and avoided solidifying phenomenon in advance, on the other hand make material loading and unloading all go on in advance, and with same material loading and unloading all can accomplish same batch hot briquetting's all products, and then effectually improve production efficiency, high frequency instantaneous accurate feeding technique, the unstable problem of manual feeding has been solved to "quick accurate" ground, automatic feeding, high frequency feeding, mould heat preservation and automatic coded disc technique have ensured whole intelligent, can accomplish the unmanned on duty of production, the manpower is saved. The planning of the light-off factory (Light off factory) automated fewest factories can be achieved.
Preferably, the powder feeding assembly further comprises a pushing plate pushing the feeding box to move parallel to the moving direction of the upper port plate, and a pressure set pressing the feeding box to be abutted against the upper end face of the upper port plate.
Through adopting above-mentioned technical scheme, when the marginal powder in to the feed opening through the material loading box, the material loading box needs to support tightly the upper shield, then remove, thereby guarantee except that get into the powder in the feed opening, unnecessary powder can be hung from the upper shield by the material loading box, set up pressure group in the one end at the material loading box in this scheme, make the butt that the material loading box can be tight at the up end of upper shield through pressure group, thereby guarantee not have unnecessary powder remaining at the upper shield, reduce the probability of clearing up residual powder on the upper shield, improve production efficiency and practice thrift the cost, every die cavity is automatic quantitatively transported, do not have any unnecessary overlap, strictly with intelligent space volume ration, the material cost is than 25% or so that reduces before.
Preferably, the powder feeding assembly further comprises a feeding plate which is positioned at the lower end of the supporting plate group and drives the upper orifice plate to move together with the supporting plate group, a material leakage hole aligned with the material separation hole is formed in the feeding plate, and adjusting blocks for adjusting the height of the upper orifice plate are arranged at the upper end of the feeding plate at the two sides of the upper orifice plate.
Through adopting above-mentioned technical scheme, together remove to the shaping passageway through the charge-up board with last mouth board and fagging group, offer the weeping hole on the charge-up board for powder can be along the feed opening entering weeping downthehole and finally get into in the shaping unit, set up the regulating block in the upper end of charge-up board simultaneously, adjust the interval between mouth board and the fagging group through the regulating block, thereby reach the volume of getting into the powder in every feed opening and all can be adjusted, thereby adapt to the production of the different products that need different powder volume.
Preferably, the upper end of the feeding plate is provided with a powder falling hole at one side of the upper port plate away from the hot press, and the lower end of the feeding plate is provided with a waste hopper at the powder falling hole.
Through adopting above-mentioned technical scheme, when powder gets into the feed opening through the charging box, in order to guarantee that there is sufficient powder can fill up all feed openings, the powder that gets into in the charging box at every turn is excessive, if not retrieve excessive powder, will make manufacturing cost become high, through seting up the powder hole that falls in the upper end of delivery sheet in this scheme for the charging box will remove to powder hole department that falls after removing from last oral siphon board, in the charging box unnecessary powder will get into the waste hopper along powder hole that falls, thereby retrieve and recycle.
Preferably, the clamping plate group comprises a first pair of inserting plates and a second pair of inserting plates, the first pair of inserting plates and the second pair of inserting plates slide oppositely, the first pair of inserting plates are located on the upper side of the second pair of inserting plates, first inserting long holes perpendicular to the sliding direction of the upper opening plate are uniformly formed in the first pair of inserting plates, second inserting long holes parallel to the sliding direction of the upper opening plate are uniformly formed in the second pair of inserting plates, and the clamping unit comprises a first clamping chuck and a second clamping chuck, wherein the first clamping chuck is fixed in the first inserting long holes and penetrates through the second inserting long holes to the lower side of the second pair of inserting plates, and the second clamping chuck is fixed on the lower end face of the second pair of inserting plates and is aligned with the first clamping chuck.
Through adopting above-mentioned technical scheme, the grip block group is when carrying out the centre gripping to the shaping work piece, and first to picture peg and second are to the picture peg together reverse movement for first reinforced chuck and second chuck are together to the middle part removal, thereby grasp the shaping work piece, and this scheme makes first to picture peg and second to picture peg accessible multiunit clamping unit together centre gripping to fashioned centre gripping work piece, and is more convenient.
Preferably, the two sides of the first pair of inserting plates and the second pair of inserting plates are respectively provided with an opening and closing limiting block for limiting the sliding stroke of the first pair of inserting plates and the second pair of inserting plates.
Through adopting above-mentioned technical scheme, the shaping work piece just after shaping, its state can not be very stable, leads to its intensity can not be very high, in case first clamp material chuck and second clamp material chuck when too big to the strength of shaping work piece centre gripping, probably can lead to shaping work piece to damage, in this scheme through setting up the stopper that opens and shuts in the both sides of first to picture peg and second to the picture peg, according to the size of work piece self for the stopper butt that opens and shuts is in the both ends of first to picture peg and second to the picture peg, thereby make first to picture peg and second to the picture peg just can carry out the centre gripping with shaping work piece when the limit of removal, thereby guarantee the yield of work piece.
Preferably, the molding blanking assembly further comprises a discharging sliding table carrying the clamping plate group to move, and a powder cleaning assembly for cleaning residual powder in the molding unit is arranged at one side end of the discharging sliding table, which is close to the molding channel.
Through adopting above-mentioned technical scheme, drive grip block group through ejection of compact slip table and remove together, guarantee that the displacement deviation can not appear between first to picture peg and the second to the picture peg, reduce the influence to follow-up shaping work piece centre gripping, simultaneously after holding the work piece, clear up the remaining powder of shaping unit department through powder clearance subassembly in the en route that removes to reset, avoid causing the influence to follow-up shaping.
Preferably, the powder cleaning assembly comprises an air blowing row which is rotationally connected to one side end of the discharging sliding table, which is close to the hot press, an air passage which is perpendicular to the moving direction of the discharging sliding table is horizontally arranged in the middle of the air blowing row, and air holes which are communicated with the air passage are uniformly formed in the side end of the air blowing row.
Through adopting above-mentioned technical scheme, when using this powder clearance subassembly, ejection of compact slip table drives grip block group and prepares the roll-off by shaping passageway, blows this moment and arranges the rotation for blow and arrange the directional shaping unit of last gas pocket slope of row, a large amount of air admission air flue, the air flue is with air transmission to gas pocket department and blowout, thereby blow off the unshaped and remaining powder on the shaping unit, whole process does not need to stop ejection of compact slip table's removal, just directly accomplish the clearance at ejection of compact slip table's removal process, it is more convenient, more quick.
Preferably, the upper end of the discharging sliding table is provided with an upper cover plate covered on the clamping plate group.
Through adopting above-mentioned technical scheme, the powder drifts in the air and will influence the environment of production, sets up the upper cover plate in the upper end of ejection of compact slip table in this scheme, carries out the buckle closure with grip block group through the upper cover plate for the powder that blows up through the powder clearance subassembly can be blocked by the upper cover plate, thereby reduces the probability that the powder flies away. Ensuring the production environment.
Preferably, the fagging group is including the first fagging that is located the upside and the second fagging that is located the downside, first fagging with the second fagging subtend slides, first fagging with the second fagging is equipped with along the slip direction and gives way the slot hole, give way the slot hole have a plurality of and follow the upper shed board slip direction evenly arranged, first fagging in give way the slot hole in evenly be provided with first separation blade along length direction, the second fagging in give way in the slot hole in evenly be provided with the second separation blade along length direction, the second separation blade inlay locate in the slot hole of giving way of first fagging and butt in first separation blade side, second separation blade up end and parallel and level in first separation blade up end, the first separation blade of butt each other with the second separation blade is a set of and butt alignment in the branch hole.
Through adopting above-mentioned technical scheme, when powder falls in the feed opening, first separation blade and second separation blade support in the bottom of feed opening, after last oral siphon and diaphragm group together remove the shaping passageway, first fagging and second fagging reverse movement to mobilize first baffle and second separation blade to one side that keeps away from each other and remove until completely disengaging in the feed opening, and first baffle and second baffle all butt are at the oral siphon lower terminal surface, make the in-process feed opening's that removes inner wall will stay powder, and finally fall into the shaping unit from the feed opening. The scheme ensures that the powder falls more accurately, can effectively reduce the powder residue and saves the cost.
In summary, the beneficial technical effects of the application are:
1. when the powder hot press molding equipment is used for producing products, powder is stored in the feeding box, the powder uniformly falls into the material distribution holes of the upper orifice plate through the feeding box, then the upper orifice plate and the supporting plate group move horizontally into the molding channel together, the supporting plate group slides horizontally, the powder positioned in the material distribution holes falls into the molding unit, the supporting plate group resets to one side along with the upper orifice plate after resetting to the lower end of the upper orifice plate, then the powder positioned in the molding unit is subjected to hot press molding by the die assembly of the hot press machine, and after molding, the clamping plate group horizontally moves into the molding channel and clamps the molded products by the clamping unit and then resets, so that the complete production process of the products is completed. According to the scheme, powder is pre-fed on one side of the hot press by arranging the powder feeding assembly, the powder which is about to fall into each forming unit is separated independently, then fed together and falls into the forming units at the same time, and then hot press forming is performed by fast die assembly, so that the quality of the same batch of products is more uniform, the phenomenon of solidification in advance is avoided, on the other hand, feeding and discharging are performed automatically, and all products of the same batch of hot press forming can be completed by the same batch of feeding and discharging, so that the production efficiency is effectively improved;
2. when the powder falls into the distributing hole, the first baffle plate and the second baffle plate are supported at the bottom of the distributing hole, and after the upper orifice plate and the transverse plate group move together to the forming channel, the first support plate and the second support plate move reversely, so that the first baffle plate and the second baffle plate are moved to the side far away from each other until the distributing hole is completely separated, and the first baffle plate and the second baffle plate are abutted against the lower end surface of the upper orifice plate, so that the powder can be retained by the inner wall of the distributing hole in the moving process and finally falls into the forming unit from the distributing hole, the powder falling is more accurate, powder residues can be effectively reduced, and the cost is saved;
3. the ejection of compact slip table drives grip block group and prepares the roll-off by the shaping passageway, blows this moment and arrange the rotation for blow and arrange the directional shaping unit of last gas pocket slope of arranging, a large amount of air admission air flue, the air flue is with air transmission to gas pocket department and blowout, thereby blow off the remaining powder of not forming on the shaping unit, the removal of ejection of compact slip table need not stop in whole process, just directly accomplish the clearance at the removal process of ejection of compact slip table, it is more convenient, more quick.
Drawings
FIG. 1 is a schematic view of a powder hot press molding apparatus;
FIG. 2 is a schematic view of a powder hot press forming apparatus from another perspective;
FIG. 3 is an enlarged view at A of FIG. 2;
FIG. 4 is a partial exploded view of the powder feed assembly;
FIG. 5 is a schematic view of the powder feeding assembly;
FIG. 6 is a schematic view of the structure of the powder feeding assembly;
FIG. 7 is a schematic view of a partial explosion of a molded blanking assembly;
FIG. 8 is an enlarged view at B of FIG. 7;
FIG. 9 is a schematic view of a partial explosion of a molded blanking assembly;
fig. 10 is a schematic structural view of the powder cleaning assembly.
In the figure: 1. hot press molding the assembly; 11. a hot press; 12. hot-press forming an upper plate; 13. hot-press forming the lower plate; 14. a molding unit; 141. forming a hole; 142. forming a punch; 143. a core rod; 15. an ejection cylinder; 16. forming a channel; 17. an aluminum bracket; 171. a feeding oil cylinder; 172. a discharging oil cylinder; 2. a powder feed assembly; 21. a feeding plate; 211. a material leakage hole; 212. a shaft with holes; 213. an adjusting block; 2131. a waist-shaped hole; 214. a side bracket; 2141. a rack; 215. powder falling holes; 216. a waste hopper; 22. a brace plate group; 221. a first stay plate; 2211. a yielding slot; 2212. a first baffle; 222. a second stay plate; 2221. a second baffle; 23. an upper orifice plate; 231. a material distributing hole; 3. a powder feeding assembly; 31. a feeding barrel; 32. a feeding box; 33. a pushing plate; 331. a driving motor; 3311. a gear; 34. a pressure set; 341. a pressure rod; 342. a transition support plate; 343. a rocker; 344. a pressure spring; 345. a brace rod; 346. positioning a nut; 4. forming a blanking assembly; 41. a discharging sliding table; 411. an upper cover plate; 42. a clamping plate group; 421. a first pair of insert plates; 4211. a first insertion slot; 422. a second pair of plugboards; 4221. a second insertion slot; 423. a support rod; 43. a clamping unit; 431. a first clamping chuck; 432. a second clamping chuck; 44. a discharge port; 45. an opening and closing limit seat; 451. a guide bolt; 452. an opening and closing limiting block; 453. an adjusting bolt; 5. a powder cleaning assembly; 51. a turnover cylinder; 52. blowing and discharging; 521. an airway; 522. air holes; 53. a shielding plate.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-10.
Referring to fig. 1, a powder hot press molding apparatus includes a hot press molding assembly 1 for molding a hot press product, a powder feeding assembly 2 for feeding powder into the hot press molding assembly 1, a powder feeding assembly 3 for feeding powder into the powder feeding assembly 2, and a molding blanking assembly 4 for clamping a molded workpiece out of the hot press molding assembly 1.
Referring to fig. 2 and 3, the hot press forming assembly 1 includes a hot press 11 disposed vertically, a hot press forming upper plate 12 disposed at an upper side of a press forming end of the hot press 11, and a hot press forming lower plate 13 disposed at a lower side of the press forming end, wherein the hot press forming upper plate 12 and the hot press forming lower plate 13 are driven by cylinders, forming units 14 are disposed between the hot press forming upper plate 12 and the hot press forming upper plate 12 in an array manner, the forming units 14 include forming holes 141 formed in the hot press forming lower plate 13 and forming punches 142 fixed to a lower end surface of the hot press forming upper plate 12 by bolts, an ejector cylinder 15 is fixed to a lower end of the hot press 11 by bolts, a plurality of core rods 143 are vertically fixed upward to a piston rod of the ejector cylinder 15 by bolts, and the core rods 143 are disposed in an array shape and vertically penetrate into each forming hole 141.
When the hot press 11 does not work, a forming channel 16 is formed between the hot press forming lower plate 13 and the hot press forming upper plate 12, the hot press 11 is horizontally fixed with aluminum brackets 17 on two sides of the forming channel 16 through bolts, and the upper ends of the aluminum brackets 17 are fixed with sliding rails horizontally extending to two sides of the hot press 11 through bolts.
Referring to fig. 3 and 4, the powder feeding assembly 2 includes a feeding plate 21 horizontally disposed on a slide rail, a stay plate group 22 horizontally slidably disposed at an upper end of the feeding plate 21, and an upper orifice plate 23 fixed to an upper end of the feeding plate 21 and disposed at an upper side of the stay plate group 22.
The lower end of the feeding plate 21 is fixedly provided with a sliding block which is embedded in the sliding rail and slides along the length direction of the sliding rail through a bolt, the side end of the middle part of the aluminum bracket 17 is fixedly provided with a feeding oil cylinder 171 through a bolt, a piston rod of the feeding oil cylinder 171 is parallel to the sliding rail and is fixedly arranged at the side end of the feeding plate 21 through a bolt, and the feeding plate 21 can be driven to slide on the sliding rail through the feeding oil cylinder 171.
Referring to fig. 4 and 5, an air cylinder is fixed at the upper end of the feeding plate 21 at two sides of the upper opening plate 23 through bolts, the piston rods of the air cylinders are horizontally perpendicular to the sliding direction of the feeding plate 21, the supporting plate group 22 comprises a first supporting plate 221 and a second supporting plate 222 which are respectively fixed on the piston rods of the air cylinders through bolts, the first supporting plate 221 and the second supporting plate 222 are horizontally moved under the driving of the air cylinders and move in a direction perpendicular to the moving direction of the feeding plate 21, the first supporting plate 221 is located at the upper end of the second supporting plate 222, the first supporting plate 221 and the second supporting plate 222 are provided with yielding slots 2211 along the sliding direction, the yielding slots 2211 are provided with a plurality of yielding slots 2211 and are uniformly arranged along the sliding direction of the feeding plate 21, the first supporting plate 221 is uniformly and integrally provided with a first retaining piece 2212 along the length direction in the yielding slots 2211, the second retaining piece 2221 is embedded in the yielding slots 2211 and is abutted to the first retaining piece 2212, and the second retaining piece 2222 is embedded in the yielding slots 2211 and abutted to the first retaining piece 2212 side end, and the second retaining piece 222 is abutted to the first retaining piece 2212 side end surface and the second retaining piece 222 side is abutted to the first retaining piece 2211.
The upper port plate 23 is uniformly provided with the distributing holes 231, the feeding plate 21 is uniformly provided with the material leakage holes 211 aligned with the distributing holes 231, the distributing holes 231 and the material leakage holes 211 are of the same diameter, the feeding plate 21 is fixedly provided with the perforated shaft 212 in the material leakage holes 211 through bolts, the perforated shaft 212 penetrates through the connecting positions of the first baffle 2212 and the second baffle 2221 and is inserted into the distributing holes 231, powder is blocked by the first baffle 2212 and the second baffle 2221 when falling into the distributing holes 231, and when the first support plate 221 and the second support plate 222 move in the opposite direction, the first baffle 2212 and the second baffle 2221 move to the side far away from the perforated shaft 212, and at the moment, the powder can fall into the material leakage holes 211 from the distributing holes 231 and leak out.
The upper end of the feeding plate 21 is fixed with an adjusting block 213 on two sides of the upper orifice plate 23 through bolts, waist-shaped holes 2131 are vertically formed in the adjusting block 213, two side ends of the upper orifice plate 23 penetrate through the waist-shaped holes 2131 through bolts to be respectively fixed on the adjusting block 213, the height of the upper orifice plate 23 can be adjusted through the position of the adjusting bolts 453 in the waist-shaped holes 2131, and then the amount of powder falling into the distributing holes 231 can be adjusted.
The powder feeding assembly 3 comprises a feeding barrel 31 fixed on one side of the top of the hot press 11 through bolts, a feeding box 32 communicated with the discharge end of the feeding barrel 31 through a pipeline and propped against the upper end face of the upper port plate 23 to horizontally move, a pushing plate 33 pushing the feeding box 32 to move parallel to the moving direction of the upper port plate 23, and a pressure set 34 compacting the feeding box 32 and propped against the upper end face of the upper port plate 23.
Referring to fig. 5 and 6, a side bracket 214 is horizontally fixed at one side end of the feeding plate 21 far away from the hot press 11 through a bolt, a rack 2141 is horizontally fixed at the side bracket 214 through a bolt, a slide rail is horizontally fixed at the top of the side bracket 214 through a bolt, the lower end surface of the pushing plate 33 is embedded with the slide rail, the pushing plate 33 can slide along the length direction of the slide rail, a driving motor 331 is fixed at the side end of the pushing plate 33 through a bolt, a gear 3311 is coaxially fixed on an output shaft of the driving motor 331 through a bolt, and the gear 3311 is meshed with the rack 2141, so that the driving motor 331 can drive the pushing plate 33 to move when working.
The pressure group 34 comprises pressure rods 341 which are rotatably connected to the middle parts of two side ends of the feeding box 32 through a rotating shaft, a transition support plate 342 which is connected with one end of the two pressure rods 341 far away from the feeding box 32 through bolts and is positioned on one side of the feeding box 32 far away from the hot press 11, a lifting plate 343 which is connected to the middle part of the transition support plate 342 through bolts, a pressure spring 344 which is arranged at the upper end of the pushing plate 33 and is positioned on one side of the rotating shaft center far away from the hot press 11, the middle part of the lifting plate 343 is rotatably connected to the upper end of the pushing plate 33 through the rotating shaft, a supporting rod 345 is rotatably connected to one side far away from the hot press 11 through the rotating shaft, one end of the supporting rod 345 far away from the rotating shaft penetrates out of the lifting plate 343 and is provided with a positioning nut 346 through a threaded connection at the end, the pressure spring 344 is sleeved on the supporting rod 345 and is abutted against the lower end face of the lifting plate 343, so that the pressure spring 344 provides a certain force to the lifting plate 343, and the lifting plate 343 transfers the force to the other end, so that the feeding box 32 is abutted against the upper end face of the upper plate 23.
The upper end surface of the feeding plate 21 is provided with a powder falling hole 215 at one side of the upper opening plate 23 far away from the hot press 11, and the lower end surface of the feeding plate 21 is fixedly provided with a waste hopper 216 at the powder falling hole 215 through bolts, so that redundant powder in the feeding box 32 can enter the waste hopper 216 along the powder falling hole 215 for collection.
Referring to fig. 1 and 7, the molding blanking assembly 4 includes a discharging sliding table 41 disposed on a sliding rail at the other side of the hot press 11, a clamping plate set 42 disposed at an upper end of the discharging sliding table 41, a clamping unit 43 disposed at a lower end of the clamping plate set 42 and aligned with the molding unit 14 one by one, a discharging port 44 fixed on one end of the aluminum bracket 17 far away from the hot press 11 and located at a lower side of the discharging sliding table 41 and collecting molded products through bolts, a discharging cylinder 172 fixed on a side end of a middle portion of the aluminum bracket 17 through bolts, and a piston rod of the discharging cylinder 172 is parallel to a length direction of the sliding rail on the aluminum bracket 17 and fixed on a side end of the discharging sliding table 41 through bolts.
Referring to fig. 7 and 8, the clamping plate set 42 includes a first pair of insertion plates 421 and a second pair of insertion plates 422, the first pair of insertion plates 421 are located at the upper side of the second pair of insertion plates 422, two air cylinders are fixed on the upper end surface of the discharging sliding table 41 through bolts, the two air cylinders are located at two sides of the first pair of insertion plates 421 and the second pair of insertion plates 422 respectively, piston rods of the two air cylinders are perpendicular to the sliding direction of the discharging sliding table 41 and are fixed at one side ends of the first pair of insertion plates 421 and the second pair of insertion plates 422 through bolts respectively, so that the first pair of insertion plates 421 and the second pair of insertion plates 422 slide oppositely.
The first inserting long holes 4211 perpendicular to the sliding direction of the upper opening plate 23 are uniformly formed in the first pair of inserting plates 421, the second inserting long holes 4221 parallel to the sliding direction of the upper opening plate 23 are uniformly formed in the second pair of inserting plates 422, a plurality of supporting rods 423 are horizontally fixed to the upper end face of the first pair of inserting plates 421 through bolts, the supporting rods 423 are uniformly arranged along the direction of the first inserting holes, the length direction of the supporting rods 423 is perpendicular to the length direction of the first inserting holes, the clamping unit comprises a first clamping chuck 431 fixed to the lower side end of the supporting rods 423 through bolts and sequentially penetrating through the first inserting long holes 4211 and the second inserting long holes 4221, and a second clamping chuck 432 welded to the lower end face of the second pair of inserting plates 422 and aligned to the first clamping chuck 431, and the air cylinder drives the first pair of inserting plates 421 and the second pair of inserting plates 422 to reversely move, and the first clamping chuck 431 and the second clamping chuck 432 can clamp a product from the forming unit 14.
The upper end face of the discharging sliding table 41 is fixedly provided with an opening and closing limiting seat 45 on one side of two air cylinders through bolts, two groups of guide bolts 451 are fixedly arranged on the opening and closing limiting seat 45, each group of guide bolts 451 comprise two guide bolts 451, the length direction of each guide bolt 451 is parallel to the moving direction of the first pair of inserting plates 421 and the second pair of inserting plates 422, one end, close to each other, of each opening and closing limiting seat 45 is provided with an opening and closing limiting block 452 in a sliding mode on the same group of guide bolts 451, the opening and closing limiting seat 45 is in threaded connection with an adjusting bolt 453 which is abutted to one end of the opening and closing limiting block 452 between the two guide bolts 451 of the same group, two opening and closing limiting blocks 452 on the same opening and closing limiting seat 45 are respectively abutted to one side ends of the first pair of inserting plates 421 and the second pair of inserting plates 422, and four opening and closing limiting blocks 452 on the two opening and closing limiting seats 45 can limit moving strokes of the first pair of inserting plates 421 and the second pair of inserting plates 422, and simultaneously the stroke can be adjusted through the adjusting bolts 453.
Referring to fig. 9 and 10, a powder cleaning assembly 5 is disposed at one side end of the discharging sliding table 41, which is close to the hot press 11, and the powder cleaning assembly 5 includes two overturning cylinders 51 rotatably connected to the upper end surface of the discharging sliding table 41 and located at two sides of the clamping plate set 42 through a rotating shaft, and an air blowing row 52 rotatably connected to one side end of the discharging sliding table 41, which is close to the forming channel 16, through the rotating shaft, a piston rod of the overturning cylinder 51 is rotatably connected to two ends of the air blowing row 52 through the rotating shaft, and two rotation axes of the air blowing row 52 are not coincident, so that the air blowing row 52 can be driven to rotate through the overturning cylinder 51.
The middle part of the blowing row 52 is provided with an air passage 521 along the direction of the rotation axis, the side end of the blowing row 52 is uniformly provided with air holes 522 communicated with the air passage 521 along the length direction, and the blowing row 52 is rotated to enable the air holes 522 to be obliquely directed to the forming unit 14, so that residual powder is blown off, one side end of the blowing row 52, which is close to the hot press 11, is fixedly provided with a shielding plate 53 through bolts, and the blown powder is shielded through the shielding plate 53.
The upper end surface of the discharging sliding table 41 is fixed with an upper cover plate 411 covered on the clamping plate group 42 through bolts.
In the production process, a fixed temperature is maintained, so that the stability of the process can be improved; the feeding heat preservation can ensure that all feeding systems are maintained in a dry state and are not easy to rust, and the relative size is accurate; the maintenance of the temperature of the die can also ensure the size and the density of the material; the feeding keeps the temperature and keeps the temperature before feeding to avoid the absorption of water vapor, the humidity control is an important means for precise plastic injection, and is naturally the object of our study, and the prevention of rust is also facilitated by the iron-based metal and alloy powder to avoid water vapor.
The implementation principle of the embodiment is as follows:
when the powder hot press forming device is used for producing products, a certain amount of powder is poured into the feeding barrel 31 according to the amount of the products produced once and the amount of the powder required by the products, the powder enters the feeding box 32 through the feeding barrel 31, at the moment, the pressure spring 344 pushes one end of the lifting rocker 343, the other end of the lifting rocker 343 which is rotationally connected with the middle part has downward trend, the transition support plate 342 drives the pressure rod 341 to apply pressure to the two ends of the feeding box 32, so that the feeding box 32 can be tightly abutted against the upper end face of the upper orifice plate 23, the pushing plate 33 drives the feeding box 32 to move from one side close to the hot press 11 to one side far away from the hot press 11, in the moving process, the powder directly enters the distributing hole 231, and redundant powder is directly scraped from the upper orifice plate 23 until the feeding box 32 moves to the powder falling hole 215, the excessive powder enters the waste hopper 216 along the powder falling hole 215 to be collected, then, the feeding oil cylinder 171 drives the feeding plate 21 to move into the forming channel 16, at this time, the material leakage hole 211 on the feeding plate 21 is aligned with the forming unit 14, the first supporting plate 221 and the second supporting plate 222 are driven by the air cylinder to move in opposite directions, so that the first blocking piece 2212 and the second blocking piece 2221 aligned with the same material distributing hole 231 are far away from each other until the lower opening of the material distributing hole 231 is completely exposed, at this time, the powder falls out from the material distributing hole 231 and passes through the material leakage hole 211 to enter the forming unit 14, when the first supporting plate 221 and the second supporting plate 222 are reset together, the first supporting plate 221 and the second supporting plate 222 are driven by the feeding plate 21 to be reset together, then, the upper plate 12 is moved downwards, the lower plate 13 is moved upwards and clamped by the hot press forming the powder into a product by a certain pressure and a certain temperature, the hot-press forming upper plate 12 and the hot-press forming lower plate 13 are reset respectively, the core rod 143 is ejected under the driving of the ejection cylinder 15 at the lower end, so that a product is ejected, at this time, the ejection cylinder 172 drives the ejection sliding table 41 to horizontally slide into the forming channel 16, then the cylinder drives the first pair of inserting plates 421 and the second pair of inserting plates 422 to reversely move together, the first clamping head 431 and the second clamping head 432 cooperate to clamp a workpiece, the ejection sliding table 41 horizontally moves and resets, the overturning cylinder 51 drives the blowing row 52 to rotate in the moving process, so that air holes 522 on the blowing row 52 are obliquely directed to the forming unit 14, a large amount of air enters the air passage 521, the air passage 521 transmits the air to the air holes 522 and ejects the air holes, so that the powder which is not formed on the forming unit 14 is blown away, and the formed product is released by the clamping unit 43 automatically falls into the discharging interface 44 when the clamping plate group 42 moves back to the upper side of the discharging interface 44, and the complete production process of the product is completed.
The embodiments of the present invention are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in this way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (9)
1. A powder hot briquetting equipment, its characterized in that: comprising the steps of (a) a step of,
a hot press forming assembly (1), wherein the hot press forming assembly (1) comprises a hot press (11) which is vertically arranged;
the powder feeding assembly (2) comprises an upper orifice plate (23) positioned on one side of the hot press (11) and horizontally sliding into a forming channel (16) of the hot press (11), and a supporting plate group (22) which is abutted to the lower end of the upper orifice plate (23) and moves along with the upper orifice plate (23), wherein the upper orifice plate (23) is uniformly provided with a material distributing hole (231) for receiving powder, the supporting plate group (22) horizontally moves in a direction perpendicular to the moving direction of the upper orifice plate (23), so that the opening of the lower end of the material distributing hole (231) is opened or closed, and the powder in the material distributing hole (231) falls into a forming unit (14) of the hot press (11);
the powder feeding assembly (3) comprises a feeding box (32) which is abutted against the upper end face of the upper port plate (23) and horizontally moves, and the feeding box (32) uniformly drops powder into the distributing holes (231);
the molding blanking assembly (4) comprises a clamping plate group (42) which is positioned on one side of the hot press (11) away from the upper port plate (23) and horizontally moves into a molding channel (16) of the hot press (11), and a clamping unit (43) which is arranged at the lower end of the clamping plate group (42) and used for clamping a molded product;
the clamping plate group (42) comprises a first pair of inserting plates (421) and a second pair of inserting plates (422), the first pair of inserting plates (421) and the second pair of inserting plates (422) slide oppositely, the first pair of inserting plates (421) are located on the upper side of the second pair of inserting plates (422), first inserting long holes (4211) perpendicular to the sliding direction of the upper opening plate (23) are uniformly formed in the first pair of inserting plates (421), second inserting long holes (4221) parallel to the sliding direction of the upper opening plate (23) are uniformly formed in the second pair of inserting plates (422), and the clamping unit (43) comprises first clamping clamps (431) fixed in the first inserting long holes (4211) and penetrating through the second inserting long holes (4221) to the lower side of the second pair of inserting plates (422), and second clamping clamps (432) fixed on the lower end faces of the second pair of inserting plates (422) and aligned with the first clamping clamps (431).
2. The powder hot press molding apparatus according to claim 1, wherein: the powder feeding assembly (3) further comprises a pushing plate (33) for pushing the feeding box (32) to move parallel to the moving direction of the upper port plate (23), and a pressure group (34) for pressing the feeding box (32) to be abutted against the upper end face of the upper port plate (23).
3. The powder hot press molding apparatus according to claim 1, wherein: the powder feeding assembly (2) further comprises a feeding plate (21) which is positioned at the lower end of the supporting plate group (22) and drives the upper opening plate (23) to move together with the supporting plate group (22), a material leakage hole (211) which is aligned with the material separation hole (231) is formed in the feeding plate (21), and adjusting blocks (213) which are used for adjusting the height of the upper opening plate (23) are arranged at the upper end of the feeding plate (21) at two sides of the upper opening plate (23).
4. A powder hot briquetting apparatus according to claim 3, characterised in that: powder falling holes (215) are formed in the upper end of the feeding plate (21) at one side, far away from the hot press (11), of the upper opening plate (23), and a waste hopper (216) is arranged at the lower end of the feeding plate (21) at the position of the powder falling holes (215).
5. The powder hot press molding apparatus according to claim 1, wherein: the two sides of the first pair of plugboards (421) and the second pair of plugboards (422) are respectively provided with an opening and closing limiting block (452) for limiting the sliding travel of the first pair of plugboards (421) and the second pair of plugboards (422).
6. The powder hot press molding apparatus according to claim 1, wherein: the molding blanking assembly (4) further comprises a discharging sliding table (41) which is used for carrying the clamping plate group (42) to move, and a powder cleaning assembly (5) for cleaning residual powder in the molding unit (14) is arranged at one side end of the discharging sliding table (41) close to the molding channel (16).
7. The powder hot press molding apparatus according to claim 6, wherein: the powder cleaning assembly (5) comprises an air blowing row (52) which is rotationally connected to one side end of the discharging sliding table (41) close to the hot press (11), an air passage (521) perpendicular to the moving direction of the discharging sliding table (41) is horizontally arranged in the middle of the air blowing row (52), and air holes (522) communicated with the air passage (521) are uniformly formed in the side end of the air blowing row (52).
8. The powder hot press molding apparatus according to claim 6, wherein: the upper end of the discharging sliding table (41) is provided with an upper cover plate (411) covered on the clamping plate group (42).
9. The powder hot press molding apparatus according to claim 1, wherein: the support plate group (22) comprises a first support plate (221) located at the upper side and a second support plate (222) located at the lower side, the first support plate (221) and the second support plate (222) slide oppositely, a plurality of position-keeping long holes (2211) are formed in the first support plate (221) and the second support plate (222) along the sliding direction, the position-keeping long holes (2211) are uniformly arranged along the sliding direction of the upper opening plate (23), the first support plate (221) is uniformly provided with first baffle plates (2212) in the position-keeping long holes (2211) along the length direction, the second baffle plates (222) are uniformly provided with second baffle plates (2221) in the position-keeping long holes (2211) of the first support plate (221) in an embedded manner and are abutted to the side ends of the first baffle plates (2212), and the second baffle plates (2221) are aligned with the first baffle plates (2212) along the length direction, and the second baffle plates (2212) are abutted to each other.
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| CN203804217U (en) * | 2013-11-27 | 2014-09-03 | 南通国谊锻压机床有限公司 | Powder product charging device |
| CN110834437A (en) * | 2019-11-28 | 2020-02-25 | 湖北文理学院 | Full-automatic hot-pressing forming device for drum brake pad |
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| JP3737331B2 (en) * | 1999-03-31 | 2006-01-18 | Ｓｐｓシンテックス株式会社 | Automatic powder filling method and apparatus |
| WO2001008864A1 (en) * | 1999-07-29 | 2001-02-08 | Materials Innovation, Inc. | Hydraulic powder press |
| JP4761050B2 (en) * | 2006-01-24 | 2011-08-31 | Ｔｄｋ株式会社 | Powder filling apparatus and powder filling method, molding apparatus, molding method, and method for producing rare earth sintered magnet |
| CN105538572B (en) * | 2015-12-29 | 2017-10-31 | 重庆迪斯步特摩擦材料有限公司江津分公司 | Brake block production equipment |
| CN112935247A (en) * | 2019-11-26 | 2021-06-11 | 精点自动化（昆山）有限公司 | Quantitative powder feeding mechanism capable of automatically adjusting powder filling amount and powder feeding method |
| CN212920150U (en) * | 2020-07-24 | 2021-04-09 | 扬州丽华汽车内饰件有限公司 | Hot-press forming machine |
| CN112427638A (en) * | 2020-12-04 | 2021-03-02 | 湖南伊澍工业技术有限公司 | Oscillating hot-pressing sintering furnace with pressurizing auxiliary structure |
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| CN203804217U (en) * | 2013-11-27 | 2014-09-03 | 南通国谊锻压机床有限公司 | Powder product charging device |
| CN110834437A (en) * | 2019-11-28 | 2020-02-25 | 湖北文理学院 | Full-automatic hot-pressing forming device for drum brake pad |
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