CN102729385B - Single air-inflation structure for working arm of rotational moulding machine - Google Patents
Single air-inflation structure for working arm of rotational moulding machine Download PDFInfo
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- CN102729385B CN102729385B CN201210246371.9A CN201210246371A CN102729385B CN 102729385 B CN102729385 B CN 102729385B CN 201210246371 A CN201210246371 A CN 201210246371A CN 102729385 B CN102729385 B CN 102729385B
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- air
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- 238000001175 rotational moulding Methods 0.000 title claims abstract description 34
- 238000005096 rolling process Methods 0.000 claims description 35
- 238000007789 sealing Methods 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004904 shortening Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The invention discloses a single air-inflation structure for a working arm of a rotational moulding machine, relating to a structure of the working arm of a rotational moulding machine used for producing a hollow rotational moulded product by using a plastic power material. The single air-inflation structure is composed of a main shaft, an auxiliary shaft, an arm head, a disc gear, a mandrel and the like, and the structure is technically characterized in that the single air-inflation structure is added in the working arm of the rotational moulding machine; the single air-inflation structure mainly comprises an air-inflation joint, an air-inflation tube and the like, an air-inflation port is arranged on the air-inflation joint and used for connecting the input end of the air-inflation tube, correspondingly, an air inlet channel is arranged in the arm head and used for connecting the output end of the air-inflation tube, and an air outlet hole and an air outlet channel are formed in the mandrel; and a single air-inflation path is that air enters in a rotational moulding die through the air-inflation port, the air-inflation tube, the air inlet channel, the air outlet hole and the air outlet channel sequentially. The rotational moulding machine has the advantages of shortening machining time, saving energy, improving the quality of the rotational moulded product, increasing production efficiency and the like by adding the structure capable of being automatically inflated with air in the working arm.
Description
Technical field
The present invention relates to the single inflatable structure in a kind of plant equipment, refer in particular in a kind of hollow plastic product device of rotomoulding forming the single inflatable structure for rotational molding machine working arm.
Background technology
Rotational molding machine is a kind of rotomoulding apparatus that adopts plastic powder to make hollow rotomoulded articles, it mainly drives the Plastic Rolling Molds after thermally equivalent to rotate around X-axis and Y-axis by a working arm, make the plastic powder of melting in Plastic Rolling Molds under Action of Gravity Field, be coated with uniformly, adhere to the whole inner surface of Plastic Rolling Molds, thereby make rotomoulded articles moulding, after cooling and shaping, die sinking can be taken out finished product again.The working arm arm type adopting in rotational molding machine is at present to take straight-arm as main, this straight-arm is mainly to consist of main shaft, countershaft, arm head, mandrel etc., wherein main shaft output connects arm head, countershaft output is connected and the transmission that is used as power with the mandrel in arm head by the dish gear being meshed, and Plastic Rolling Molds is mainly arranged on the dish gear of mandrel.
Above-mentioned this rotational molding machine working arm is in whole production process, especially in the most important heating process of rotomoulded articles, be all not possess automatic inflating function, that is to say when working arm drives Plastic Rolling Molds to enter to heat baking oven in, thermal source only acts on the outer surface of Plastic Rolling Molds, and cannot realize heating for Plastic Rolling Molds inner surface, so both caused extending heating time, affect operating efficiency, also wasted a large amount of heat energy, particularly when making complicated rotomoulded articles, iff the heating that relies on Plastic Rolling Molds outer surface, may have dead angle is difficult to be heated, this makes rotomoulded articles because heating is uneven, occur the phenomenon that wall unevenness is even, or occur that open defect causes rotomoulded articles to scrap.
Disclosed China Patent No. is that 200820167983.8 " rotational molding machine " disclosed a kind of through hole that is provided with in Plastic Rolling Molds, and by external pipeline, distinguish the rotational molding machine structure of connecting through hole and air compressor, the Main Function of this structure is by air compressor, to provide plenum in to Plastic Rolling Molds when Plastic Rolling Molds is cooling, make to fit tightly between rotomoulded articles and Plastic Rolling Molds, thereby avoid rotomoulded articles to produce deformation in cooling forming process, improve yield rate.Yet the inflation of this patent structure only acts on the cooling procedure of Plastic Rolling Molds, because inflatable structure design is too simple and crude, while heating in Plastic Rolling Molds enters baking oven, this inflatable structure obviously cannot normally be worked, therefore exist compared with macrostructure defect.
Summary of the invention
Goal of the invention of the present invention be to overcome the defect of prior art and provide a kind of can be to carrying out single inflatable structure of the rotational molding machine working arm of automatic inflating in Plastic Rolling Molds, and by this can automatic inflating rotational molding machine working arm structure make rotational molding machine there is the process time of shortening, save the energy, promote rotomoulded articles quality, the advantage such as enhance productivity.
Goal of the invention of the present invention realizes by following technical proposal:
A single inflatable structure for rotational molding machine working arm, comprises main shaft and countershaft, and this main shaft is provided with the spindle sprocket that drive shaft is rotated, and this countershaft is provided with the countershaft sprocket that drives countershaft to rotate; Described main shaft output is connected on arm head, in this arm head, be provided with the mandrel with bearing supporting, between this mandrel one end and countershaft output, be respectively equipped with the dish gear that meshes and be used as power and transmit, and on the dish gear of mandrel, Plastic Rolling Molds is installed, the gas tube that rotates and support with bearing is installed in described main shaft or in countershaft, this gas tube input is provided with the gas-charging connection being tightly connected, and this gas-charging connection is provided with the inflation inlet being connected with gas tube input;
In described arm head, be provided with inlet channel; In mandrel, be provided with and the outlet passageway being connected in Plastic Rolling Molds, be also provided with the venthole being connected with outlet passageway, inlet channel respectively;
Described gas tube output is connected on arm head, and the inlet channel in this gas tube output, arm head, the venthole on mandrel and the outlet passageway in mandrel are all done sealing and be communicated with.
The inflation route of described single inflatable structure is that gas enters in Plastic Rolling Molds by inflation inlet, gas tube, inlet channel, venthole, outlet passageway successively.
Described countershaft is arranged on outside main shaft, and this main shaft, with the supporting that rotates of the bearing in bearing block, is provided with the bearing of the supporting that rotates between this countershaft and main shaft.
Described main shaft is arranged on outside countershaft, and this main shaft, with the supporting that rotates of the bearing in bearing block, is provided with the bearing of the supporting that rotates between this countershaft and main shaft.
Compared with prior art, the present invention has additional single inflatable structure in rotational molding machine working arm, this list inflatable structure mainly comprises gas-charging connection, gas tube etc., and inflation inlet is set on gas-charging connection for being communicated with gas tube input, the corresponding inlet channel that also arranges in arm head is for being communicated with gas tube output, mandrel is provided with venthole and outlet passageway, this list inflation route comprises that gas passes through inflation inlet successively, gas tube, inlet channel, venthole, outlet passageway enters in Plastic Rolling Molds, and by working arm, set up this can automatic inflating structure, can make rotational molding machine possess shortening process time, save the energy, promote rotomoulded articles quality, the advantage such as enhance productivity.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of the first structure of the present invention.
Fig. 2 is the A place enlarged drawing of Fig. 1.
Fig. 3 is the profile schematic diagram of the first structure of the present invention.
Fig. 4 is the cross-sectional schematic of the second structure of the present invention.
Fig. 5 is the B place enlarged drawing of Fig. 4.
Fig. 6 is the profile schematic diagram of the second structure of the present invention.
The specific embodiment
Below in conjunction with above-mentioned accompanying drawing and adopt specific embodiment to be described in detail again the present invention.
As shown in Fig. 1 ~ Fig. 6,1. gas-charging connection, 2. spindle sprocket, 3. bearing block, 4. main shaft, 5. gas tube, 6. countershaft sprocket, 7. countershaft, 8. arm head, 9. dish gear, 10. mandrel, 11. inflation inlets, 12. outlet passageways, 13. annular grooves, 14. ventholes, 15. inlet channels.
A kind of single inflatable structure of rotational molding machine working arm, as shown in Fig. 1, Fig. 3, Fig. 4, Fig. 6, it is a kind of working arm structure adopting on the rotational molding machine that plastic powder makes hollow rotomoulded articles, single inflatable structure that the present embodiment adopts is arranged in the working arm that arm type is straight-arm, this working arm comprises main shaft 4 and countershaft 7, this main shaft is provided with the spindle sprocket 2 that drive shaft is rotated, and this countershaft is provided with the countershaft sprocket 6 that drives countershaft to rotate.
Described working arm list inflatable structure mainly comprises two kinds of versions, the first structure is as shown in Fig. 1 ~ Fig. 3, main shaft 4 is with the supporting that rotates of the bearing in bearing block 3, countershaft 7 is arranged on outside main shaft 4, and between countershaft and main shaft, be also provided with rotate supporting bearing, therefore main shaft 4 at interior, countershaft 7 outside, can independent rotation between major and minor axle.
In described main shaft 4, be provided with a gas tube 5, this gas tube input stretches out main shaft 4 and is provided with the gas-charging connection 1 being tightly connected, and this gas-charging connection is provided with the inflation inlet 11 being connected with gas tube input; Described gas tube 5 outputs are connected on arm head 8.
Described main shaft 4 outputs are provided with the fixing arm head 8 that is threaded as shown in Figure 2, in this arm head, be provided with the mandrel 10 rotating with bearing supporting, this mandrel and main shaft 4 are at right angle setting relation, described mandrel 10 one end are provided with dish gear 9, this dish gear is arranged on pinion stand, on dish gear 9, Plastic Rolling Molds is also installed; Described countershaft 7 outputs are also provided with the fixing dish gear 9 of screw, the transmission that is meshed and is used as power of dish gear on this countershaft and the dish gear of mandrel 10 one end, between dish gear on countershaft 7 and arm head 8, be provided with bearing supporting, therefore can not produce movement interference between the dish gear 9 on arm head and countershaft.
In described arm head 8, be provided with inlet channel 15, and gas tube 5 outputs are threaded on arm head 8, and are connected with the inlet channel 15 in arm head; In described mandrel 10, be provided with outlet passageway 12, this outlet passageway arranges along the axial line of mandrel 10, and be connected with in Plastic Rolling Molds, in this mandrel 10, be also provided with the venthole 14 that is communicated with respectively outlet passageway 12 and inlet channel 15, and being communicated with between inlet channel 15 and venthole 14 is to be mainly provided with annular groove 13 structures on arm head 8 inwalls, can not have influence on connection situation after mandrel 10 being rotated by annular groove so yet.
The structure that the main shaft 4 of this rotational molding machine working arm outside and then is respectively realized transmission of power by spindle sprocket 2 and countershaft sprocket 6 at interior, countershaft 7 can greatly facilitate the improvement to the countershaft sprocket 6 on countershaft 7 and dish gear 9, it can need to increase countershaft sprocket 6 or dish gear 9 diameters according to the actual use of rotational molding machine, increase countershaft sprocket 6 or dish gear 9 numbers of teeth, the corresponding output torque that also strengthens working arm, therefore more can be applicable to carry out on massive rotationally moulded machine the processing of massive rotationally moulded products.
The second structure of described rotational molding machine working arm list inflatable structure is as shown in Fig. 4 ~ Fig. 6, main shaft 4 is with the supporting that rotates of the bearing in bearing block 3, countershaft 7 is arranged in main shaft 4, and between countershaft and main shaft, be also provided with rotate supporting bearing, therefore main shaft 4 outside, countershaft 7 is interior, can independent rotation between major and minor axle.
In described countershaft 7, be provided with a gas tube 5, this gas tube input is identical with the first structure, is also to stretch out main shaft 4 and be provided with the gas-charging connection 1 being tightly connected, and this gas-charging connection is provided with the inflation inlet 11 being connected with gas tube input; Described gas tube 5 outputs are connected on arm head 8.
Described main shaft 4 outputs are provided with the fixing arm head 8 that is threaded as shown in Figure 5, in this arm head, be provided with the mandrel 10 rotating with bearing supporting, this mandrel and main shaft 4 are at right angle setting relation, and described mandrel 10 one end are provided with dish gear 9, on this dish gear 9, Plastic Rolling Molds are installed; Described countershaft 7 outputs are also provided with the fixing dish gear 9 of screw, the transmission that is meshed and is used as power of the dish gear on this countershaft and the dish gear of mandrel 10 one end.
The interior set single inflation route of described arm head 8, mandrel 10 is identical with the first structure, so locate to be no longer repeated in this description.
The countershaft 7 of this rotational molding machine working arm, in main shaft 4, cannot improve the countershaft sprocket 6 on countershaft 7 and dish gear 9, therefore be more suitable for the processing of carrying out small-sized rotomoulded articles on small-sized rotational molding machine.
Single inflation route in this rotational molding machine working arm is that gas enters in Plastic Rolling Molds by inflation inlet 11, gas tube 5, inlet channel 15, venthole 14, outlet passageway 12 successively.
The present invention can be arranged in the working arm that arm type is straight-arm, also can design in arm type is the working arms such as L arm or U arm, wherein single inflatable structure of working arm input and output is identical, just in the difference of combination arm type, at the enterprising line correlation of middle part connectivity structure, improves.
The working arm that is designed with this list inflatable structure is arranged on one conventionally can be along on the mobile vehicle frame of guide rail slippage, and by mobile vehicle frame, working arm is delivered in baking oven and heated, its working method is as follows: mobile vehicle frame is sent into working arm in baking oven and heated along guide rail, spindle sprocket 2 drives main shaft 4 to rotate simultaneously, and then drive arm head 8 around the axial line of main shaft 4, to complete 360 ° of rotations of X-axis, countershaft sprocket 6 drives countershaft 7 to rotate, and then with moving mandrel 10, around the axial line of mandrel, complete 360 ° of rotations of Y-axis by the dish gear 9 being meshed, now Plastic Rolling Molds will participate in the rotation of X-axis and Y-axis simultaneously, Plastic Rolling Molds is heated in baking oven more even.
While heating in Plastic Rolling Molds enters baking oven, corresponding working arm is also heated simultaneously, now booster air pump is inflated route for gas is provided in Plastic Rolling Molds by list, this gas is also become hot gas by Synchronous Heating in course of conveying, therefore, plastic powder in Plastic Rolling Molds is in the extremely extraneous heating that is subject to arrive, also can also form heating by inner hot gas, this dual-heated mode can better realize the Flashmelt of plastic powder, greatly shortened the heat time, energy-saving effect is brought up to more than 50%.Especially when making complicated rotomoulded articles, if only rely on the heating of Plastic Rolling Molds outer surface, may there is heating dead angle, this often causes rotomoulded articles because heating is uneven, to occur the phenomenon that wall unevenness is even, or occur open defect and cause rotomoulded articles to scrap, and enter in Plastic Rolling Molds by hot gas, can directly blow being difficult to the dead angle of heating, the temperature of charge that makes it to reach in Plastic Rolling Molds is identical, thereby produces outstanding rotomoulded articles.And need to also can between Plastic Rolling Molds and mandrel 10, have additional again one section of bellows according to real work, to improve gas-heated temperature, this design does not change the heat source of traditional rotational molding machine, just the thermal source in traditional design is made full use of, and reaches energy-conservation, efficient object.
Claims (4)
1. a single inflatable structure for rotational molding machine working arm, comprises main shaft (4) and countershaft (7), and this main shaft is provided with the spindle sprocket (2) that drive shaft is rotated, and this countershaft is provided with the countershaft sprocket (6) that drives countershaft to rotate; Described main shaft (4) output is connected on arm head (8), in this arm head, be provided with the mandrel (10) with bearing supporting, between this mandrel one end and countershaft (7) output, be respectively equipped with the dish gear (9) that meshes and be used as power and transmit, and on the dish gear of mandrel (10), Plastic Rolling Molds is installed, it is characterized in that:
In a, described main shaft (4) or in countershaft (7), be provided with the rotate gas tube (5) of supporting of bearing, this gas tube input is provided with the gas-charging connection (1) being tightly connected, and this gas-charging connection is provided with the inflation inlet (11) being connected with gas tube (5) input;
In b, described arm head (8), be provided with inlet channel (15); In mandrel (10), be provided with and the outlet passageway being connected in Plastic Rolling Molds (12), be also provided with the venthole (14) being connected with outlet passageway (12), inlet channel (15) respectively;
It is upper that c, described gas tube (5) output are connected to arm head (8), and inlet channel (15), the venthole (14) on mandrel (10) and the outlet passageway (12) in mandrel in this gas tube output, arm head (8) all done sealing and be communicated with.
2. single inflatable structure of a kind of rotational molding machine working arm according to claim 1, is characterized in that the inflation route of described single inflatable structure is that gas enters in Plastic Rolling Molds by inflation inlet (11), gas tube (5), inlet channel (15), venthole (14), outlet passageway (12) successively.
3. single inflatable structure of a kind of rotational molding machine working arm according to claim 1, it is characterized in that described countershaft (7) is arranged on outside main shaft (4), this main shaft, with the supporting that rotates of the bearing in bearing block (3), is provided with the bearing that rotates and support between this countershaft (7) and main shaft (4).
4. single inflatable structure of a kind of rotational molding machine working arm according to claim 1, it is characterized in that described main shaft (4) is arranged on outside countershaft (7), this main shaft, with the supporting that rotates of the bearing in bearing block (3), is provided with the bearing that rotates and support between this countershaft (7) and main shaft (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210246371.9A CN102729385B (en) | 2012-07-17 | 2012-07-17 | Single air-inflation structure for working arm of rotational moulding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210246371.9A CN102729385B (en) | 2012-07-17 | 2012-07-17 | Single air-inflation structure for working arm of rotational moulding machine |
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| Publication Number | Publication Date |
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| CN102729385A CN102729385A (en) | 2012-10-17 |
| CN102729385B true CN102729385B (en) | 2014-04-09 |
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| CN201210246371.9A Expired - Fee Related CN102729385B (en) | 2012-07-17 | 2012-07-17 | Single air-inflation structure for working arm of rotational moulding machine |
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| CN110757699B (en) * | 2018-07-26 | 2024-06-18 | 湖北科技学院 | Rotational molding machine |
| CN113774706A (en) * | 2021-09-08 | 2021-12-10 | 江苏九九久科技有限公司 | Aerify reinforcing formula drum shaft |
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| CN201283618Y (en) * | 2008-11-12 | 2009-08-05 | 王海平 | Rotational molding machine |
| CN202668843U (en) * | 2012-07-17 | 2013-01-16 | 孙罗娇 | Single inflation structure for plastic rolling machine working arm |
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Owner name: DESHUN CONTAINER CO., LTD., CIXI CITY Free format text: FORMER OWNER: SUN LUOJIAO Effective date: 20140403 |
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Effective date of registration: 20140403 Address after: 315327 Zhejiang city of Ningbo Province, Cixi City Road Andong Industrial Park No. 298 Patentee after: Deshun Container Co., Ltd., Cixi City Address before: 315327 Zhejiang city of Ningbo Province, Cixi City Road Andong Industrial Park No. 298 Patentee before: Sun Luojiao |
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