CN111872251A - Rapid manufacturing device and method for rotational molding machine mold - Google Patents
Rapid manufacturing device and method for rotational molding machine mold Download PDFInfo
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- CN111872251A CN111872251A CN202010734762.XA CN202010734762A CN111872251A CN 111872251 A CN111872251 A CN 111872251A CN 202010734762 A CN202010734762 A CN 202010734762A CN 111872251 A CN111872251 A CN 111872251A
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- molding machine
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- rotational molding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
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Abstract
The invention provides a rotational molding machine die rapid manufacturing device and a method, which comprises a base, a left supporting rod, a cross beam, a forming punch, a right supporting rod, a fixing frame, a metal plate, an adjusting bolt and a working platform, wherein a boss is arranged in the middle of the base, the lower end surface of the left supporting rod and the lower end surface of the right supporting rod are respectively and fixedly connected with the upper end surfaces of the base at the left side and the right side of the boss, the upper end surface of the left supporting rod and the upper end surface of the right supporting rod are respectively and fixedly connected with the left side and the right side of the lower end surface of the cross beam, the forming punch is arranged on the cross beam, the working platform is arranged on the upper end surface of the boss, the fixing frame is arranged on the upper end surface of the: the quick assembly disassembly of being convenient for, the flexibility is strong, and is fixed firm, is favorable to the quick manufacturing of mould.
Description
Technical Field
The invention discloses a device and a method for quickly manufacturing a rotational molding machine die, and belongs to the technical field of dies.
Background
In recent years, the degree of manufacturing of Chinese molds has been greatly improved. The plastic mold in China is rapidly increased, and the specific gravity is continuously improved. In recent years, plastic molds in China develop rapidly. According to survey data of subdivided product production and sale requirements and prospect prediction analysis reports in the Chinese mold manufacturing industry of 2013 plus 2017 of the prospective network, at present, the proportion of the plastic mold in the whole mold industry is about 30%, and the proportion of the plastic mold in an inlet and an outlet of the mold is as high as 50-70%. Along with China machinery, automobiles, household appliances, electronic information and 2006 and 2008, plastic rubber molds account for the proportion of the mold inlets and the mold outlets in the same period. It is understood that about 200 pieces of interior trim molds are required to manufacture a common car, and only about 50% of large and medium-sized plastic molds required to manufacture bumpers, instrument panels, fuel tanks, steering wheels, and the like can be satisfied. The plastic building materials are also intended to replace traditional materials in large quantity, the popularization rate of plastic doors and windows and plastic pipes in the whole country in 2010 is expected to reach 30% -50%, the market share of plastic drainage pipes is expected to exceed 50%, and the demand on the molds is greatly increased. According to the prediction of experts, the overall heat trend of the mold market is steady and upward, in the future mold market, the development speed of plastic molds is higher than that of other molds, and the proportion in the mold industry is gradually increased.
There are three common methods for making rotational molding dies: welding steel plates, casting aluminum alloy and electroplating. The die for welding steel plates and casting aluminum alloy is generally adopted in China. The rotational molding process is suitable for producing large and ultra-large products. Mainly the independence of the product. Most of the products can be used without secondary processing or manufacturing, the single-layer structure products have large deformation, and the precision is difficult to control. Such as shipping baskets, tool boxes, etc. Wherein the application of the aluminium alloy casting mould is most capable of ensuring the quality of the rotational moulding product. The aluminum alloy used by the rotational molding die must meet the following requirements: high strength, good fluidity, fine crystal grains and small pore tendency. In view of the above conditions, aluminum alloy zl 101a is preferred. The size of the shrinkage rate is related to the precision of the size of the die, the shrinkage rate of about 1.1% of aluminum alloy is firstly added when the wood die is manufactured, and then different plastic shrinkage rates are added according to different plastic varieties, and the shrinkage rate is in a larger relation with the shape of a product. When the shrinkage of the plastic is released, the mold manufacturing factory and the rotational molding manufacturing factory are closely matched. The casting of the blank is a crucial ring: whether the surface of a blank has air holes or not is a big problem which puzzles the rotational molding world, if the air holes are generated, the previous work is abandoned, and the melting of the alloy is a very technical work: the crucible for melting is non-iron to prevent the iron crucible from adding iron to the aluminium alloy, the high iron content will increase the grain size of the alloy, it is not good for obtaining smooth mould surface, usually graphite crucible or stainless steel crucible is used, the crucible is preheated to dark red before melting, then zinc oxide coating is brushed, when the white coating is changed to yellow, the aluminium ingot is added, the aluminium ingot is preheated before adding to prevent water. The melting of the alloy needs to be accelerated and fast poured, and the long retention time in a furnace is avoided. Degassing and refining deterioration of the alloy is a critical part. The degassing agent has various types, but most of the degassing agents can only remove large bubbles in the alloy, and no obvious effect is caused on pinhole bubbles influencing the surface quality of the rotational molding die. After long-term research, the degassing modification covering agent is adopted to cover the surface of the aluminum alloy melt to prevent the aluminum alloy from further absorbing gas, and on the other hand, a substance capable of bringing out hydrogen in the aluminum alloy is added to discharge the hydrogen, so that the aim of thoroughly removing the gas in the aluminum alloy is fulfilled. The mold processing process is carried out by adopting a processing center from a wood mold, so that the uniform wall thickness of the mold can be ensured, the mold is required to be subjected to electric spark processing after being subjected to CNC processing, and then the whole set of mold is manufactured through a plurality of procedures of bench worker polishing, dermatoglyph manufacturing, Teflon spraying and the like. However, the aluminum alloy mold has the following disadvantages: the process is complicated and difficult and the cost is high. The process comprises the procedures of wood pattern manufacturing, manual assembly of the wood pattern, vacuum gravity casting, mold CNC machining, electric spark machining, bench worker polishing, leather grain manufacturing and the like. The quality is difficult to ensure, and the surface of the blank is difficult to ensure to have no air holes during casting. The shrinkage of the casting mould is not easy to determine, the surface area is difficult to obtain accurately, and the size and the feeding amount of the plastic product are difficult to control. The aluminum alloy has low strength, the wall thickness of the die is 3-4 times of that of the steel die, and the overall heat transfer performance is inferior to that of the steel die. It typically takes several months or even longer from the design of the mold to the creation of the object, with high cycle times and expense. The shape and structure design of the die is restricted by the complexity. The machining equipment and machine tools are numerous and expensive.
In the existing die manufacturing, the selected metal plate to be formed is directly fixed on a working platform, so that the flexibility is poor, the rapid disassembly and assembly are inconvenient, and the fixation is not firm, so that the device for rapidly manufacturing the die of the rotational molding machine, which is convenient to disassemble and assemble and firm in fixation, is used for solving the problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a device and a method for quickly manufacturing a rotational molding machine die, which solve the problems in the background art by adding a fixing frame, a fixing clamping block and a clamping groove.
In order to achieve the purpose, the invention is realized by the following technical scheme: a rotational molding machine die rapid manufacturing device comprises a base, a left support rod, a cross beam, a forming punch, a right support rod, a fixing frame, a metal plate, an adjusting bolt and a working platform, wherein a boss is arranged in the middle of the base, the lower end surface of the left support rod and the lower end surface of the right support rod are respectively and fixedly connected with the upper end surfaces of the base on the left side and the right side of the boss, the upper end surface of the left support rod and the upper end surface of the right support rod are respectively and fixedly connected with the left side and the right side of the lower end surface of the cross beam, the forming punch is arranged on the cross beam, the working platform is arranged on the upper end surface of the boss, the fixing frame is arranged on the upper end surface of the working platform, the metal plate is clamped in the fixing frame, the adjusting bolt is arranged on the front surface, and a clamping groove is arranged on the working platform.
Furthermore, a groove is formed in the inner side of the front wall of the fixing frame, an adjusting knob is arranged on the front end face of the adjusting bolt, the rear end face of the adjusting bolt penetrates through the middle of the front end faces of the fixing frame and the clamping plate and is fixedly connected with the middle of the front end faces of the fixing frame and the clamping plate, the clamping plate is arranged in the groove, and the shape and the size of the clamping plate are matched with the.
Furthermore, the left side and the right side of the clamping groove are both provided with air pressure rods, the surfaces of the air pressure rods facing the direction of the middle shaft of the clamping groove are both provided with fixing clamping plates, the quantity of the clamping grooves is the same as that of the fixing clamping blocks, and the clamping grooves and the fixing clamping blocks are in one-to-one correspondence.
Further, fixed frame passes through fixed fixture block and draw-in groove fixed connection, sheet metal passes through adjusting bolt to be fixed inside fixed frame.
Further, the working platform is provided with around extending the piece, it is partly that the height is working platform about extending the piece, the terminal surface is at same horizontal plane with working platform terminal surface under extending the piece, working platform uses the screw fixation in the middle of the base up end through extending the piece, the screw is provided with a plurality ofly.
Furthermore, the inner sides of the front wall, the right wall and the rear wall of the fixing frame are provided with non-slip mats.
Further, the metal plate is fixed inside the fixing frame through an adjusting bolt.
Furthermore, the rear end face of the clamping plate is provided with an anti-slip pad, and the left fixing rod and the right fixing rod are bilaterally symmetrical.
Further, can not rock the card that fixed fixture block is firm in the draw-in groove through air pressure bar and fixed cardboard, fix sheet metal at fixed frame in advance, be connected fixed frame and work platform through draw-in groove and fixed fixture block, can realize fixed frame and work platform's quick assembly disassembly.
The invention has the beneficial effects that: according to the rapid manufacturing device for the rotational molding machine die, the metal plate can be fixed in the fixing frame in advance by adding the fixing frame, the metal plate can be clamped in the fixing frame by the adjusting bolt and the clamping plate, the metal plate can be prevented from sideslipping by the anti-slip mat, so that the rapid manufacturing device is convenient to use and operate, the fixing frame is connected with the working platform through the clamping groove and the fixing clamping block, the fixing frame and the working platform can be rapidly disassembled and assembled, the fixing frame of the metal plate is fixed in the clamping groove through the fixing clamping block by arranging the fixing clamping block and the clamping groove, the fixing clamping block can be firmly clamped in the clamping groove by the air pressure rod and the fixing clamping plate and cannot shake, and the rapid manufacturing device is more suitable.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic front view of a rapid manufacturing apparatus for a rotational molding machine mold according to the present invention;
FIG. 2 is a schematic sectional front view of a rapid manufacturing apparatus for a rotational molding machine mold according to the present invention;
FIG. 3 is a schematic top sectional view of a rapid manufacturing apparatus for a rotational molding machine mold according to the present invention;
in the figure: 1-base, 2-left support rod, 3-beam, 4-forming punch, 5-right support rod, 6-fixing frame, 7-working platform, 8-metal plate, 61-adjusting bolt, 62-non-slip pad, 63-clamping plate, 71-air pressure rod, 72-clamping groove, 73-screw and 81-fixing clamping block.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1-3, the present invention provides a technical solution: a rotational molding machine mould rapid manufacturing device comprises a base 1, a left support rod 2, a cross beam 3, a forming pressure head 4, a right support rod 5, a fixing frame 6, a metal plate 8, an adjusting bolt 61 and a working platform 7, wherein a boss is arranged in the middle of the base 1, the lower end surface of the left support rod 2 and the lower end surface of the right support rod 5 are respectively and fixedly connected with the upper end surface of the base 1 on the left side and the right side of the boss, the upper end surface of the left support rod 2 and the upper end surface of the right support rod 5 are respectively and fixedly connected with the left side and the right side of the lower end surface of the cross beam 3, the forming pressure head 4 is arranged on the cross beam 3, the working platform 7 is arranged on the upper end surface of the boss, the fixing frame 6 is arranged on the upper end surface of the working platform 7, the metal plate 8 is clamped in the fixing frame 6, the adjusting bolt 61, the working platform 7 is provided with a clamping groove 72.
As an embodiment of the present invention: the left side and the right side of the clamping groove 72 are provided with the air pressure rods 71, the surfaces of the air pressure rods 71 facing to the direction of the central axis of the clamping groove 72 are provided with the fixing clamping plates, the quantity of the clamping grooves 72 is the same as that of the fixing clamping blocks 81, the air pressure rods 71 and the fixing clamping plates correspond to each other one by one, the fixing clamping blocks can be firmly clamped in the clamping grooves and cannot shake, the periphery of the working platform 7 is provided with the extension blocks, the upper height and the lower height of the extension blocks are parts of the working platform 7, the lower end faces of the extension blocks and the lower end faces of the working platform 7 are on the same horizontal plane, the working platform.
As an embodiment of the present invention: the inboard recess of seting up of fixed frame 6 antetheca, the terminal surface is provided with adjust knob before adjusting bolt 61, fixed connection in the middle of the terminal surface before adjusting bolt 61 rear end face runs through fixed frame 6 antetheca and splint 63, splint 63 sets up in the recess, splint 63 shape size and recess phase-match, fixed frame 6 is through fixed fixture block 81 and draw-in groove 72 fixed connection, sheet metal 8 passes through adjusting bolt 61 to be fixed inside fixed frame 6, fixed frame 6 antetheca, right side wall and back wall inboard all are provided with slipmat 62, splint 63 rear end face is provided with slipmat 62, left side dead lever 2 and right dead lever 5 bilateral symmetry.
As an embodiment of the present invention: the metal plate 8 can be fixed in the fixed frame 6 in advance, the metal plate 8 can be clamped in the fixed frame 6 through the adjusting bolt 61 and the clamping plate 63, the anti-slip pad 62 can prevent the metal plate 8 from sideslipping, after the previous metal plate 8 is processed, the fixed frame 6 with the metal plate 8 fixed inside can be fixed in the clamping groove 72 through the fixing clamping block 81, the fixing clamping block 81 can be firmly clamped in the clamping groove 72 through the air pressure rod 71 and the fixing clamping plate and cannot shake, the metal plate 8 is fixed in the fixed frame 6 in advance, and the fixed frame 6 is connected with the working platform 7 through the clamping groove 72 and the fixing clamping block 81, so that the fixed frame 6 and the working platform 7 can be quickly disassembled and assembled.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (9)
1. The utility model provides a quick manufacturing installation of rotational moulding machine mould, includes base, left branch vaulting pole, crossbeam, shaping drift, right branch vaulting pole, fixed frame, sheet metal, adjusting bolt and work platform, its characterized in that: be provided with the boss in the middle of the base, terminal surface under left branch vaulting pole and the right branch vaulting pole respectively with the base up end fixed connection of boss left and right sides, left branch vaulting pole up end and right branch vaulting pole up end respectively with terminal surface left and right sides fixed connection under the crossbeam, the drift that takes shape sets up on the crossbeam, work platform sets up the up end at the boss, fixed frame sets up at the work platform up end, sheet metal is inside fixed frame by the centre gripping, adjusting bolt sets up openly at fixed frame, fixed frame left surface sets up to no wall, terminal surface all is provided with two fixed fixture blocks under terminal surface and the back wall under the fixed frame antetheca, the last draw-in groove that is provided with of work platform.
2. The rotational molding machine mold rapid manufacturing device according to claim 1, characterized in that: the inner side of the front wall of the fixing frame is provided with a groove, the front end face of the adjusting bolt is provided with an adjusting knob, the rear end face of the adjusting bolt penetrates through the middle of the front end faces of the front wall of the fixing frame and the clamping plate and is fixedly connected with the middle of the front end face of the clamping plate, the clamping plate is arranged in the groove, and the shape and the size of the clamping plate are matched.
3. The rotational molding machine mold rapid manufacturing device according to claim 1, characterized in that: the clamping groove is characterized in that air pressure rods are arranged on the left side and the right side of the clamping groove, fixing clamping plates are arranged on the surfaces, facing the direction of the middle shaft of the clamping groove, of the air pressure rods, the quantity of the clamping grooves is the same as that of the fixing clamping blocks, and the clamping grooves and the fixing clamping blocks are in one-to-one correspondence.
4. The rotational molding machine mold rapid manufacturing device according to claim 1, characterized in that: the fixing frame is fixedly connected with the clamping groove through the fixing clamping block.
5. The rotational molding machine mold rapid manufacturing device according to claim 1, characterized in that: the working platform is provided with the extension piece all around, the height is a part of working platform about extending the piece, terminal surface and working platform under the extension piece are at same horizontal plane, working platform uses the screw fixation in the middle of the base up end through extending the piece, the screw is provided with a plurality ofly.
6. The rotational molding machine mold rapid manufacturing device according to claim 1, characterized in that: and the inner sides of the front wall, the right wall and the rear wall of the fixing frame are provided with non-slip pads.
7. The rotational molding machine mold rapid manufacturing device according to claim 1, characterized in that: the metal plate is fixed inside the fixing frame through the adjusting bolt.
8. The rotational molding machine mold rapid manufacturing device according to claim 1, characterized in that: the rear end face of the clamping plate is provided with an anti-slip pad, and the left fixing rod and the right fixing rod are bilaterally symmetrical.
9. A rapid rotational molding machine mold manufacturing method according to any one of claims 1 to 8, characterized in that: can not rock the card that fixed fixture block is firm in the draw-in groove through air pressure bar and fixed cardboard, fix sheet metal at fixed frame in advance, be connected fixed frame and work platform through draw-in groove and fixed fixture block, can realize fixed frame and work platform's quick assembly disassembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010734762.XA CN111872251A (en) | 2020-07-27 | 2020-07-27 | Rapid manufacturing device and method for rotational molding machine mold |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010734762.XA CN111872251A (en) | 2020-07-27 | 2020-07-27 | Rapid manufacturing device and method for rotational molding machine mold |
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| CN111872251A true CN111872251A (en) | 2020-11-03 |
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| CN202010734762.XA Pending CN111872251A (en) | 2020-07-27 | 2020-07-27 | Rapid manufacturing device and method for rotational molding machine mold |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107812821A (en) * | 2017-12-07 | 2018-03-20 | 成都易活动科技有限公司 | A kind of automobile case pressing equipment |
| CN207787448U (en) * | 2017-12-29 | 2018-08-31 | 东莞市宝钰机械有限公司 | A kind of cooperative mechanical is quick-moving to change combination cold punching die device |
| CN208277084U (en) * | 2018-05-31 | 2018-12-25 | 沭阳县华伟木制品厂 | A kind of multilayer board press fitting clamping device |
| CN109201927A (en) * | 2018-07-26 | 2019-01-15 | 丹江口市东明工贸有限公司 | It is a kind of for producing the punching machine of automobile key |
| EP3632588A1 (en) * | 2018-10-04 | 2020-04-08 | Astes4 Sa | Improved apparatus for handling metal sheets and operation method thereof |
-
2020
- 2020-07-27 CN CN202010734762.XA patent/CN111872251A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107812821A (en) * | 2017-12-07 | 2018-03-20 | 成都易活动科技有限公司 | A kind of automobile case pressing equipment |
| CN207787448U (en) * | 2017-12-29 | 2018-08-31 | 东莞市宝钰机械有限公司 | A kind of cooperative mechanical is quick-moving to change combination cold punching die device |
| CN208277084U (en) * | 2018-05-31 | 2018-12-25 | 沭阳县华伟木制品厂 | A kind of multilayer board press fitting clamping device |
| CN109201927A (en) * | 2018-07-26 | 2019-01-15 | 丹江口市东明工贸有限公司 | It is a kind of for producing the punching machine of automobile key |
| EP3632588A1 (en) * | 2018-10-04 | 2020-04-08 | Astes4 Sa | Improved apparatus for handling metal sheets and operation method thereof |
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