CN102615752A - Rotational moulding machine - Google Patents
Rotational moulding machine Download PDFInfo
- Publication number
- CN102615752A CN102615752A CN2012100772667A CN201210077266A CN102615752A CN 102615752 A CN102615752 A CN 102615752A CN 2012100772667 A CN2012100772667 A CN 2012100772667A CN 201210077266 A CN201210077266 A CN 201210077266A CN 102615752 A CN102615752 A CN 102615752A
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- heating clamber
- lifting column
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Abstract
The invention relates to a rotational moulding machine which mainly comprises a bracket system, a heating system, a heating chamber and a rail, wherein the heating system is adjacent to the heating chamber and is composed of an oven wall, a front lateral door, a rear lateral door and a bottom baffle; a mould and a driving system for driving the mould to rotate around double shaft are arranged in the bracket system; the height of the mould is adjustable; the heating system is arranged on the side wall of the oven wall and comprises a combustion engine, an air inlet, an air flue, a circulating fan and an air outlet; and the air flue and the heating chamber are integral. On the basis of the integrated design of arranging the freely moving bracket system, fully sealing the periphery of the heating chamber and arranging the air flue with the heating chamber, the heat loss is reduced, the molding efficiency is increased, the energy consumption is reduced, and an independent bottom rotating mechanism is strong in bearing capacity. The working position of the mould is adjusted according to the size and quantity of the mould. A heat conducting chip is arranged between the air inlet and air outlet of the heating chamber, so that the quick heating and uniform heating of the mould are efficiently ensured and the total heat conveyed by the heating chamber is increased.
Description
Technical field
The present invention relates to the rotation molding technical field, relate in particular to the revolving totally-enclosed rotational moulding machine in a kind of formula chassis, this rotational moulding machine is applicable to processing and manufacturing large scale and super, the plastic products that planform is complicated.
Background technology
The rotational moulding machine is applicable to machining large-sized hollow product, so rotomoulding apparatus itself belongs to large-scale plant equipment.Present rotational moulding machine nearly all is open structure; It is the outside that the mechanical arm of rotational moulding machine is arranged on heating clamber; The rotational moulding machine is when heating, and side door can not be closed fully, leaves very big space; Because mechanical arm need bear heavier load, so need bigger size and the space of design could satisfy need of work; And air channel and heating clamber adopt separate design, and promptly the air channel is arranged on the outside of heating clamber, and this structure causes thermal loss greatly, causes that cycle process time is long, production efficiency is low, energy resource consumption is big.In addition, after existing rotational moulding mechanism was created, structure, the position of die frame and heating clamber were all fixed; Can't be adjustable, during for the goods of processing different size and shape, especially complex-shaped goods; The die surface complex structure is difficult to realize that each surface of mould is heated at the heating clamber center, can not guarantee effectively that mould is heated and thermally equivalent fast; So material is difficult to evenly disperse, quality precision such as the goods internal structure that processes, superficial makings are not high.
Summary of the invention
The objective of the invention is defective to existing rotomoulding apparatus existence; Design a kind of rotational moulding machine of compact conformation; Improve the sealing effectiveness of rotational moulding machine, and can freely regulate its operating position, make mould be in best operational position in the inside of heating clamber according to the different size of mould; Guarantee that the die surface heating region does not have the dead angle, thus improve the rotational moulding machine operating efficiency, cut down the consumption of energy, the rotomoulded articles of machining high-precision.
For realizing that the technical scheme that above-mentioned purpose adopts is: a kind of rotational molding shaping machine; Mainly form by mounting system, heating system, heating clamber, track, heating system next-door neighbour heating clamber, said heating clamber is surrounded by baking oven wall, front side door, rear door, bottom baffle; Bottom baffle is positioned at the bottom of baking oven wall; Bottom baffle blocks the bottom opening of baking oven wall when mounting system moves into heating clamber inside, and making heating clamber is an enclosure space, and front side door, rear door and bottom baffle can be opened; Be convenient to mounting system and move into and shift out heating clamber; Mounting system can and shift out heating clamber from front side door, rear door immigration, include mould in the mounting system and reach to mould provides around biaxial rotated drive system, and the height of mould can be regulated; Heating system is arranged on the side of baking oven wall, comprises combustor, air inlet, air channel, conducting strip, circulating fan, air outlet, and air inlet and air outlet are that the air quantity that adds hot-flow flue is imported and exported, and are the air outlet and the air inlet of heating clamber simultaneously; Combustor is installed in the top in air channel, and for heating clamber provides heat, air inlet is arranged on the top in heating clamber and air channel, a side of combustor, and air channel and heating clamber adopt the one design; The air channel is arranged on a side of heating clamber, and an end in air channel communicates with air inlet, and conducting strip is installed between air inlet and the air outlet, and conducting strip promptly is a part of baking oven wall of heating clamber; Also be a side in air channel, conducting strip adopts the high thermal conductivity coefficient material, when hot blast is flowed through the air channel; Conducting strip is heated, and for heating clamber provides heat, circulating fan is arranged on the below of heating clamber; Attract the combustor heated hot air heated, air outlet be arranged on heating clamber the below, communicate with the air channel other end, when the rotational moulding machine is worked; Air inlet sucks the air channel with hot blast unnecessary in the heating clamber, and this wind is delivered to air outlet through combustor heating back through the air channel and got into heating clamber, and bottom baffle is arranged on the below of heating clamber; Bottom baffle is formed by two, the lower end incision of baking oven wall is installed, retractable respectively; When mounting system was in heating clamber inside, bottom baffle was closed, and realized heating clamber lower end complete closed.
A kind of rotational molding shaping machine of the present invention, described mounting system can realize double for two covers; Every cover mounting system comprises vehicle frame, drive motors, lifting column one, lifting column two, rotating disc, die frame one, die frame two, power transmission shaft, electric rotating machine, and track is fixedly mounted on ground or the workbench, and vehicle frame is arranged on the top of track; Drive motors is fixedly mounted on the below of vehicle frame, and the drive motor drives vehicle frame passes in and out heating clamber along track, adopts this mechanism to be provided with to mounting system; Can guarantee heating clamber when work, the front side door of rotational moulding machine and rear door complete closed, mounting system and mould are in the inside of heating clamber fully like this; Lifting column one is installed in the top of vehicle frame, and lifting column two is installed in the inside of lifting column one, and lifting column one can freely be regulated height according to the size of mould at perpendicular with lifting column two; The mould of different size is heated in the area of space of the best, and rotating disc is installed in the top of lifting column two, is connected with electric rotating machine with lifting column two through lifting column one; Die frame one is fixedly mounted on the rotating disc, rotatablely moves with rotating disc, and die frame two is installed between the both sides of die frame one; Under the driving of electric rotating machine and power transmission shaft; Die frame two can rotate around the axis of parallel, horizontal face, and power transmission shaft is installed on the die frame one, and gear matched, the other end on an end and the die frame two and the planetary gear of installing above the rotating disc cooperate; Electric rotating machine is installed on the vehicle frame, lifting column one below; Driven in rotation dish and power transmission shaft motion, the Union Movement of rotating disc and die frame two can realize that mould rotatablely moves in the space of heating clamber, thereby realizes the even dispersion of material.
The invention has the beneficial effects as follows:
1, through free-moving mounting system is set, can realize the rotational moulding machine when work, sealing fully reduces the loss of heat around the heating clamber; Integrated design with air channel and heating clamber are set together also can reduce the loss of heat, improves shaping efficiency, cuts down the consumption of energy.
2, through different lifting columns are set, can be flexibly, freely according to the optimum position of the size adjustment mold work of mould, guarantee that effectively mould is heated and thermally equivalent fast, realize that material evenly disperses, thereby improve Products Quality; This structure has handles sensitive, easy improved characteristics of later stage, compares with traditional rotational moulding machine, and structure is compact more.
3, the rotational moulding machine pivoted arm of transmission is deep in the heating clamber, and its pivoted arm is a cantilever beam structures, and mold weight is prone to cause pivoted arm to destroy when big, and twin shaft of the present invention rotation, lifting column one and lifting column two pressurizeds, bearing capacity is strong, and is survivable.
4, between the air inlet of heating clamber and air outlet conducting strip is set, has increased the total amount of heat of carrying to heating clamber, the heating clamber quick heating reaches design temperature more quickly, and the efficiency of heating surface improves.
Description of drawings
Fig. 1 is the rotary hermetically sealed rotational moulding machine structural representation in a kind of chassis of the present invention.
Fig. 2 is the rotary hermetically sealed rotational moulding machine support system architecture sketch map in a kind of chassis of the present invention.
Among the figure, 1-mounting system, 2-heating system, 3-baking oven wall, 4-heating clamber, 5-front side door, 6-mould; The 7-rear door, 8-combustor, 9-air inlet, 10-air channel, 11-conducting strip, 12-circulating fan; The 13-air outlet, 14-bottom baffle, 15-track, 16-vehicle frame, 17-drive motors, 18-lifting column one; 19-lifting column two, 20-rotating disc, 21-die frame one, 22-die frame two, 23-power transmission shaft, 24-electric rotating machine.
The specific embodiment
A kind of rotational molding shaping machine of the present invention, as depicted in figs. 1 and 2, mainly comprise mounting system 1, heating system 2, heating clamber 4, track 15 compositions; Said heating clamber 4 is surrounded by baking oven wall 3, front side door 5, rear door 7, bottom baffle 14; Bottom baffle 14 is positioned at the bottom of baking oven wall 3, when mounting system 1 moves into heating clamber 4 inside, blocks the bottom opening of baking oven wall 3, and front side door 5, rear door 7 can be opened; Be convenient to mounting system 1 and move into and shift out heating clamber 4; Mounting system 1 comprises vehicle frame 16, drive motors 17, lifting column 1, lifting column 2 19, rotating disc 20, die frame 1, die frame 2 22, power transmission shaft 23, electric rotating machine 24, and mould 6 is installed on the die frame 2 22, and die frame 2 22 is installed on the die frame 1; Die frame one is installed on the rotating disc 20; Electric rotating machine 24 and rotating disc 20 provide around the rotatablely moving of vertical axis and horizontal axis for mould 6, and lifting column 1 provides moving of the short transverse of mould at heating clamber with lifting column 2 19, and mounting system 1 setting is on the ground or on the track 15; In heating clamber 4 inside and outside freely-movables, mobile power comes from drive motors 17 and worm drive system thereof to mounting system 1 by vehicle frame 16; Heating system 2 is arranged on the side of baking oven wall 3, comprises combustor 8, air inlet 9, air channel 10, conducting strip 11, circulating fan 12, air outlet 13, and air inlet 9 is the air quantity import and export of heat tunnel with air outlet 13; Be the air outlet and the air inlet of heating clamber 4 simultaneously, combustor 8 is installed in the top in air channel 10, for heating clamber 4 provides heat; Air inlet 9 is arranged on the top in heating clamber 4 and air channel 10, a side of combustor 8, and the one design is adopted with heating clamber 4 in air channel 10, and air channel 10 is arranged on a side of heating clamber 4; One end in air channel 10 communicates with air inlet 9, and conducting strip 11 is installed between air inlet 9 and the air outlet 13, and conducting strip 11 promptly is a part of baking oven wall of heating clamber 4; Also be a side in air channel 10, conducting strip 11 adopts the high thermal conductivity coefficient material, when hot blast is flowed through air channel 10; Conducting strip 11 is heated, and for heating clamber 4 provides heat, circulating fan 12 is arranged on the below of heating clamber 4; Attract combustor 8 heated hot air heated, air outlet 13 be arranged on heating clamber 4 the below, communicate with air channel 10 other ends, when the rotational moulding machine is worked; Air inlet 9 sucks the air channel with hot blast unnecessary in the heating clamber 4, and this wind is delivered to air outlet 13 through combustor 8 heating backs through air channel 10 and got into heating clamber 4, and bottom baffle 14 is arranged on the below of heating clamber 4; Bottom baffle 14 is formed by two, the lower end incision of baking oven wall 3 is installed, retractable respectively; When mounting system 1 was in heating clamber 4 inside, bottom baffle 14 was closed, and realizes heating clamber 4 lower end complete closed.
A kind of rotational molding shaping machine of the present invention, like Fig. 2, described mounting system 1 can be two covers; Realize double, mounting system 1 comprises track 15, vehicle frame 16, drive motors 17, lifting column 1, lifting column 2 19, rotating disc 20, die frame 1, die frame 2 22, power transmission shaft 23, electric rotating machine 24, and track 15 is fixedly mounted on ground or the workbench; Vehicle frame 16 is arranged on the top of track 15, and drive motors 17 is fixedly mounted on the below of vehicle frame 16, and drive motors 17 drives vehicle frame 16 along track 15 turnover heating clambers 4; Adopt this mechanism to be provided with to mounting system 1, can guarantee heating clamber 4 when work, the front side door 5 and rear door 7 complete closed of rotational moulding machine; Mounting system 1 and mould 6 are in the inside of heating clamber 4 fully like this; Lifting column 1 is installed in the top of vehicle frame 16, and lifting column 2 19 is installed in the inside of lifting column 1, and lifting column 1 can freely be regulated height according to the size of mould at perpendicular with lifting column 2 19; The mould of different size is heated in the area of space of the best; Rotating disc 20 is installed in the top of lifting column 2 19, is connected with electric rotating machine 24 with lifting column 2 19 through lifting column 1, and die frame 1 is fixedly mounted on the rotating disc 20; Rotatablely move with rotating disc 20; Die frame 2 22 is installed between the both sides of die frame 1, and under the driving of electric rotating machine 24 and power transmission shaft 23, die frame 2 22 can rotate around the axis of parallel, horizontal face; Power transmission shaft 23 is installed on the die frame 1; Gear matched on one end and the die frame 2 22, the other end cooperate with the planetary gears of installing above the rotating disc 20, and electric rotating machine 24 is installed on the vehicle frame 16, lifting column one 18 belows, and driven in rotation dish 20 moves with power transmission shaft 23; The Union Movement of rotating disc 20 and die frame 2 22 can realize that mould 6 rotatablely moves in the space of heating clamber 4, thereby realizes the even dispersion of material.
Claims (4)
1. rotational molding shaping machine; Mainly comprise mounting system, heating system, heating clamber, track, it is characterized in that: heating system next-door neighbour heating clamber, said heating clamber is surrounded by baking oven wall, front side door, rear door, bottom baffle; Bottom baffle is positioned at the bottom of baking oven wall; Bottom baffle can block the bottom opening of baking oven wall, and front side door, rear door and bottom baffle can be opened, and mounting system can move into, shift out heating clamber from front side door and rear door; Include mould in the mounting system and reach to mould provides around biaxial rotated drive system, the height of mould can be regulated; Heating system is arranged on the side of baking oven wall; Comprise combustor, air inlet, air channel, circulating fan, air outlet, air inlet and air outlet are that the air quantity that adds hot-flow flue is imported and exported, and are the air outlet and the air inlet of heating clamber simultaneously; Combustor is installed in the top in air channel; Air inlet is arranged on the top in heating clamber and air channel, a side of combustor, and air outlet is arranged on the below in heating clamber and air channel, and air channel and heating clamber adopt the one design.
2. a kind of rotational molding shaping machine according to claim 1 is characterized in that: described mounting system is two covers, realizes double; Every cover comprises vehicle frame, drive motors, lifting column one, lifting column two, rotating disc, die frame one, die frame two, power transmission shaft, electric rotating machine, and track is fixedly mounted on ground or the workbench, and vehicle frame is arranged on the top of track; Drive motors is fixedly mounted on the below of vehicle frame, and the drive motor drives vehicle frame passes in and out heating clamber along track, and lifting column one is installed in the top of vehicle frame; Lifting column two is installed in the inside of lifting column one; Lifting column one is freely regulated height at perpendicular according to the size of mould with lifting column two, and rotating disc is installed in the top of lifting column two, is connected with electric rotating machine with lifting column two through lifting column one; Die frame one is fixedly mounted on the rotating disc; Die frame two is installed between the both sides of die frame one, and die frame two can rotate around the axis of parallel, horizontal face, and power transmission shaft is installed on the die frame one; Gear matched, the other end on one end and the die frame two and the planetary gear of installing above the rotating disc cooperate, and electric rotating machine is installed on the vehicle frame, lifting column one below.
3. a kind of rotational molding shaping machine according to claim 1 is characterized in that: between air inlet and air outlet, conducting strip is installed.
4. a kind of rotational molding shaping machine according to claim 1 is characterized in that: bottom baffle is formed by two, the lower end incision of baking oven wall is installed, retractable respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210077266.7A CN102615752B (en) | 2012-03-21 | 2012-03-21 | Rotational moulding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210077266.7A CN102615752B (en) | 2012-03-21 | 2012-03-21 | Rotational moulding machine |
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| Publication Number | Publication Date |
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| CN102615752A true CN102615752A (en) | 2012-08-01 |
| CN102615752B CN102615752B (en) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210077266.7A Active CN102615752B (en) | 2012-03-21 | 2012-03-21 | Rotational moulding machine |
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| CN (1) | CN102615752B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381638A (en) * | 2013-07-30 | 2013-11-06 | 杭州雄魁塑胶科技有限公司 | Ultra-large plastic inspection well full-automatic production system |
| CN104118085A (en) * | 2014-07-01 | 2014-10-29 | 常州飞盛塑料机械有限公司 | Efficient energy-saving shuttle-type rotational moulding machine |
| CN104354255A (en) * | 2014-11-15 | 2015-02-18 | 温岭市旭日滚塑科技有限公司 | Rotational molding drying tunnel and rotational molding mold heating device |
| CN105583983A (en) * | 2016-02-29 | 2016-05-18 | 浙江海洋学院 | Mould rotating device of rotational moulding yacht |
| CN105666767A (en) * | 2016-02-24 | 2016-06-15 | 南京正源搪瓷设备制造有限公司 | Three-dimensional gas rotomolding furnace |
| CN105666764A (en) * | 2016-02-29 | 2016-06-15 | 浙江海洋学院 | Mold swing device of rotational moulding yacht |
| CN106273147A (en) * | 2016-08-22 | 2017-01-04 | 安徽九洲环保设备有限公司 | A kind of rotational molding machine baking box |
| CN111421728A (en) * | 2020-05-07 | 2020-07-17 | 东莞市勇兴富五金塑胶有限公司 | Full-automatic rotational molding machine |
| CN111660477A (en) * | 2020-06-24 | 2020-09-15 | 浙江本凡机械有限公司 | Control and transmission system for supporting shuttle type rotational molding machine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767299A (en) * | 1986-01-27 | 1988-08-30 | Peter Friesen | Rotational molding machine |
| CN201493998U (en) * | 2009-08-27 | 2010-06-02 | 林宝树 | Base opened type rocking rotational molding machine |
| CN202462750U (en) * | 2012-03-21 | 2012-10-03 | 北京化工大学 | Rotational molding machine |
-
2012
- 2012-03-21 CN CN201210077266.7A patent/CN102615752B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4767299A (en) * | 1986-01-27 | 1988-08-30 | Peter Friesen | Rotational molding machine |
| CN201493998U (en) * | 2009-08-27 | 2010-06-02 | 林宝树 | Base opened type rocking rotational molding machine |
| CN202462750U (en) * | 2012-03-21 | 2012-10-03 | 北京化工大学 | Rotational molding machine |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381638B (en) * | 2013-07-30 | 2015-11-18 | 杭州雄魁塑胶科技有限公司 | Super-large size plastic inspection shaft fully-automatic production system |
| CN103381638A (en) * | 2013-07-30 | 2013-11-06 | 杭州雄魁塑胶科技有限公司 | Ultra-large plastic inspection well full-automatic production system |
| CN104118085B (en) * | 2014-07-01 | 2017-02-15 | 常州飞盛塑料机械有限公司 | Efficient energy-saving shuttle-type rotational moulding machine |
| CN104118085A (en) * | 2014-07-01 | 2014-10-29 | 常州飞盛塑料机械有限公司 | Efficient energy-saving shuttle-type rotational moulding machine |
| CN104354255A (en) * | 2014-11-15 | 2015-02-18 | 温岭市旭日滚塑科技有限公司 | Rotational molding drying tunnel and rotational molding mold heating device |
| CN104354255B (en) * | 2014-11-15 | 2016-11-09 | 温岭市旭日滚塑科技有限公司 | Rotational moulding drying tunnel and Plastic Rolling Molds heater |
| CN105666767A (en) * | 2016-02-24 | 2016-06-15 | 南京正源搪瓷设备制造有限公司 | Three-dimensional gas rotomolding furnace |
| CN105583983A (en) * | 2016-02-29 | 2016-05-18 | 浙江海洋学院 | Mould rotating device of rotational moulding yacht |
| CN105666764A (en) * | 2016-02-29 | 2016-06-15 | 浙江海洋学院 | Mold swing device of rotational moulding yacht |
| CN105583983B (en) * | 2016-02-29 | 2019-01-18 | 浙江海洋学院 | A kind of mould rotary device of rotational moulding yacht |
| CN105666764B (en) * | 2016-02-29 | 2019-01-18 | 浙江海洋学院 | A kind of mold rocking equipment of rotational moulding yacht |
| CN106273147A (en) * | 2016-08-22 | 2017-01-04 | 安徽九洲环保设备有限公司 | A kind of rotational molding machine baking box |
| CN111421728A (en) * | 2020-05-07 | 2020-07-17 | 东莞市勇兴富五金塑胶有限公司 | Full-automatic rotational molding machine |
| CN111660477A (en) * | 2020-06-24 | 2020-09-15 | 浙江本凡机械有限公司 | Control and transmission system for supporting shuttle type rotational molding machine |
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|---|---|
| CN102615752B (en) | 2014-06-18 |
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