CN204622420U - Two inflation rotational molding machine L arm - Google Patents

Abstract

The utility model discloses a kind of two inflation rotational molding machine L arm, relate to a kind of employing plastic powders, the rotational moulding materials such as resin make the rotational molding machine working arm structure of hollow rotomoulded articles, mainly comprise main shaft, countershaft, L arm, the formation such as arm head and mandrel, and be provided with in main shaft by tracheae, the first air pipe passway that countershaft and outer minor axis are formed and the second air pipe passway, middle inlet channel and inclined inlet channel is provided with in the mandrel of arm head, outer the first gas tube be exposed at outside L arm is finally set again and is communicated with inclined inlet channel and the first air pipe passway respectively, inlet channel and the second air pipe passway during second gas tube is communicated with respectively, by above-mentioned being arranged so that, there are in rotational molding machine working arm two inflation routes, and be filled with atmosphere gas and gases at high pressure respectively, above-mentioned this two inflation connectivity structure simplicity of design, bent angle is few, connect sealing reliable, inflation is not easily leaked, meanwhile, the junction major part of inflatable structure all exposes, and is also convenient to install, overhaul and failture evacuation.

Description

Two inflation rotational molding machine L arm

Technical field

The utility model belongs to the rotational molding machine L arm configuration in a kind of hollow plastic product device of rotomoulding forming, refers in particular to two inflation rotational molding machine L arm.

Background technology

The work of rotational molding machine mainly by Plastic Rolling Molds that rotational molding machine working arm is installed along two vertical axis continuous rotations, thus make to add to the rotational moulding material such as plastic powders, resin in Plastic Rolling Molds can uniform melting gradually under gravity and heat effect, be coated with, be bonded in Plastic Rolling Molds inner surface, and form the rotomoulded articles of required form, in above-mentioned manufacture process, only by baking oven, to the heating of Plastic Rolling Molds outer surface, shaping rotomoulded articles is of low quality, easily occurs the phenomenon of wall unevenness.Therefore, in order to address the aforementioned drawbacks, manufacturer also releases a few money and has the rotational molding machine working arm inflated in Plastic Rolling Molds, as two inflation rotational molding machine straight-arm or two inflation rotational molding machine L arm, the two filling channels in two straight-through Plastic Rolling Molds mainly opened by its project organization in working arm, thus by two filling channel respectively to being filled with gases at high pressure and atmosphere gas in Plastic Rolling Molds, atmosphere gas also can utilize baking oven heat energy in the process in Plastic Rolling Molds and form high-temperature pressure gas being filled with, and remain that being heated evenly of rotomoulded articles is consistent with wall thickness by high-temperature pressure gas, and eliminate rotomoulded articles unmanageable " dead angle " phenomenon, promote the quality of rotomoulded articles, and gases at high pressure can prevent distortion in the process of rotomoulded articles final molding, to obtain excellent rotomoulded articles.But, the design of above-mentioned these pair of inflation rotational molding machine working arm in inflatable structure is too complicated, bent angle is too much, a lot of corner often needs to realize being communicated with by the mode of multiple joint or bend pipe, and the connection sealing realizing corner in limited working arm space will be very difficult, it is also very inconvenient to install, and easily occurs charge leakage; Meanwhile, the junction major part of these inflatable structures is all hide to be arranged in working arm, also brings very big inconvenience to failture evacuation and maintenance.

Summary of the invention

Technical problem to be solved in the utility model be to overcome the defect of prior art and provide that a kind of structural design is simple, inflation connects and not easily leaks, conveniently to install and two inflation rotational molding machine L arms of maintenance.

Technical problem of the present utility model is achieved through the following technical solutions:

A kind of two inflation rotational molding machine L arm, comprises main shaft, countershaft gear that mainshaft gear, countershaft and driving countershaft that drive shaft is rotated rotate; Described main shaft and the output of countershaft are provided with L arm, and this L arm comprises vertical arm, counterweight and the horizontal outer arm that is vertically connected in vertical arm and horizontal inner arm, and this horizontal inner arm is rotatably installed in horizontal outer arm; Described main shaft output is fixedly connected in the vertical arm of L arm; Described countershaft is rotatably installed in main shaft, is provided with the Chain conveyer syndeton being used as power and transmitting between this countershaft output and horizontal inner arm input; Described horizontal outer arm output is provided with arm head, the mandrel rotating and install is provided with in this arm head, be provided with between this mandrel with horizontal inner arm output and engage and the dish gear train transmitted that is used as power, described countershaft input is provided with the outer minor axis be tightly connected, this outer minor axis is rotatably installed in main shaft, and outer minor axis outer end is stretched out main shaft and installed countershaft gear, is provided with tracheae in countershaft and outer minor axis, this tracheal strips forms the first air pipe passway, forms the second air pipe passway between tracheae and countershaft, outer minor axis; Be provided with middle inlet channel and inclined inlet channel in described mandrel, in this, between inlet channel and the second air pipe passway, be provided with the second gas tube interconnected, between this inclined inlet channel and first air pipe passway, be provided with the first gas tube interconnected.

Described countershaft output is provided with the interior minor axis be tightly connected, and this interior minor axis is rotatably installed in vertical arm, is provided with the Chain conveyer syndeton being used as power and transmitting between interior minor axis and horizontal inner arm input; Described tracheae stretches in interior minor axis, the first air cavity of connection first air pipe passway is provided with in this interior minor axis, interior minor axis is provided with the second air cavity of connection second air pipe passway, and the first described gas tube and the first air cavity are done to be communicated with and installed, and the second gas tube and the second air cavity are done to be communicated with and installed.

The seal that two are arranged on the second air cavity both sides is respectively provided with between described interior minor axis and vertical arm.

Be filled with atmosphere gas in described the first air pipe passway interconnected, the first air cavity and inclined inlet channel, in the second air pipe passway interconnected, the second air cavity and middle inlet channel, be filled with gases at high pressure.

The first described gas tube and the second gas tube are all in L-type.

Described L-type first gas tube and L-type second gas tube are all close to L arm and are exposed setting.

Compared with prior art, the utility model is mainly provided with the first air pipe passway and the second air pipe passway that are made up of tracheae, countershaft and outer minor axis in the main shaft of rotational molding machine L arm, middle inlet channel and inclined inlet channel is provided with in the mandrel of arm head, outer the first gas tube be exposed at outside L arm is finally set again and is communicated with inclined inlet channel and the first air pipe passway respectively, inlet channel and the second air pipe passway during second gas tube is communicated with respectively, above-mentioned this two inflation connectivity structure simplicity of design, bent angle be few, connect that sealing is reliable, inflation is not easily leaked; Meanwhile, the junction major part of inflatable structure all exposes, and is also convenient to install, overhaul and failture evacuation.

Accompanying drawing explanation

Fig. 1 is sectional structure schematic diagram of the present utility model.

Fig. 2 is the A place enlarged drawing of Fig. 1.

Fig. 3 is the B place enlarged drawing of Fig. 1.

Detailed description of the invention

To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.

As shown in FIG. 1 to 3,1. bearing block, 2. main shaft, 21. mainshaft gears, 3. countershaft, 31. countershaft gears, 4. tracheae, 41. first air pipe passways, 42. second air pipe passways, 5. counterweight, 6. in minor axis, 61. first air cavitys, 62. second air cavitys, inlet channel, 92. inclined inlet channel, 10. horizontal outer arms, 11. horizontal inner arms, 12. dish gear train, 13. arm heads, 14. vertical arm, 15. Chain conveyer syndetons, 16. outer minor axises in 63. seals, 7. the first gas tube, 8. the second gas tube, 9. mandrel, 91..

Two inflation rotational molding machine L arm, as shown in Figure 1, it is that a kind of rotational moulding such as plastic powders, resin material that adopts is to the working arm structure on the rotational molding machine making hollow rotomoulded articles.

Described rotational molding machine L arm comprises main shaft 2 and countershaft 3, on the bearing of these main shaft two ends difference rotating support in two bearing blocks 1, be provided with mainshaft gear 21 at main shaft 2 input, to facilitate spindle motor drive shaft 2 to rotate, main shaft 2 output is vertically fixedly connected in the vertical arm 14 of L arm.

Described countershaft 3 is arranged in main shaft 2, is respectively equipped with at the input of countershaft 3 and output the outer minor axis 16 and interior minor axis 6 that are tightly connected; Wherein, outer minor axis 16 passes through bearing rotating support in main shaft 2, outer minor axis 16 outer end is stretched out main shaft 2 and is installed countershaft gear 31, interior minor axis 6 two ends respectively by bearing rotating support in vertical arm 14, therefore interior minor axis 6, outer minor axis 16 and countershaft 3 is by the supporting of three bearings, again by the driving of countershaft gear 31, thus make three can form synchronous axial system in main shaft 2.

Install a tracheae 4 in described interior minor axis 3, outer minor axis 16 and countershaft 3, this tracheal strips forms the first air pipe passway 41, forms the second air pipe passway 42 between tracheae 4 and countershaft 3, outer minor axis 16, interior minor axis 6; Wherein, tracheae 4 stretches in interior minor axis 6 the first air cavity 61 being also formed with and can being communicated with the first air pipe passway 41, interior minor axis 6 is provided with the second air cavity 62 of connection second air pipe passway 42, the seal 63 that two are arranged on the second air cavity 62 both sides respectively is also provided with, to promote connection sealing between interior minor axis 6 and vertical arm 14.

Described L arm comprises vertical arm 14, counterweight 5 and the horizontal outer arm 10 be vertically connected in vertical arm 14 and horizontal inner arm 11, and the output of this horizontal outer arm 10 is fixedly connected with arm head 13, is provided with the mandrel 9 of the supporting that to rotate with bearing in arm head; The two ends of this horizontal inner arm 11 with bearing rotating support in horizontal outer arm 10, the input of horizontal inner arm 11 stretches in vertical arm 14, and and between interior minor axis 6, be provided with the Chain conveyer syndeton 15 being used as power and transmitting, the output of horizontal inner arm 11 engages and the dish gear train 12 transmitted that is used as power with being provided with between mandrel 9, therefore the power transmission of whole working arm is mainly divided into two: one to drive whole L upper-arm circumference to rotate around the axis of main shaft 2 for main shaft 2 rotates; Another drives horizontal inner arm 11 to rotate for countershaft 3 rotates through Chain conveyer syndeton 15, then is with moving mandrel 9 to rotate around its axis through dish gear train 12.

Be provided with parallel to each other and disconnected middle inlet channel 91 and inclined inlet channel 92 in described mandrel 9, and be also provided with outside L arm and be close to the first gas tube 7 and the second gas tube 8 that L arm exposes setting, these two gas tubes are also in L-type; Wherein, first gas tube 7 one end is installed and is communicated with inclined inlet channel 92, and the other end installs connection first air cavity 61; Inlet channel 91 in connection is installed in second gas tube 8 one end, and the other end installs connection second air cavity 62; Therefore, by formation two inflation line in this working arm, one is the first air pipe passway 41, first air cavity 61 of interconnecting and inlet channel 92 partially, is mainly filled with atmosphere gas in it; And another second air pipe passway 42, second air cavity 62 and middle inlet channel 91 for interconnecting, be mainly filled with gases at high pressure in it.Atmosphere gas route as shown in the arrow 1 in Fig. 2, Fig. 3 runs, and gases at high pressure route as shown in the arrow 2 in Fig. 2, Fig. 3 runs, and finally enters in Plastic Rolling Molds respectively by the inclined inlet channel 92 in mandrel 9 and middle inlet channel 91 simultaneously.

Atmosphere gas will utilize baking oven heat energy to become high-temperature pressure gas in the process entering Plastic Rolling Molds through working arm, this high-temperature pressure gas better can heat " dead angle " of rotomoulded articles when making complicated rotomoulded articles, make rotomoulded articles homogeneous heating, wall thickness consistent, reduce the generation of defect, avoid rotomoulded articles to scrap; And gases at high pressure can prevent rotomoulded articles distortion when being incubated when being filled with, promote rotomoulded articles quality.

Claims (6)

1. a two inflation rotational molding machine L arm, comprises main shaft (2), mainshaft gear (21) that drive shaft is rotated, countershaft (3) and drive the countershaft gear (31) of countershaft rotation; Described main shaft (2) and the output of countershaft (3) are provided with L arm, this L arm comprises vertical arm (14), counterweight (5) and the horizontal outer arm (10) be vertically connected in vertical arm (14) and horizontal inner arm (11), and this horizontal inner arm is rotatably installed in horizontal outer arm (10); Described main shaft (2) output is fixedly connected in the vertical arm (14) of L arm; Described countershaft (3) is rotatably installed in main shaft (2), the Chain conveyer syndeton (15) that being provided with between this countershaft (3) output and horizontal inner arm (11) input is used as power transmits; Described horizontal outer arm (10) output is provided with arm head (13), is provided with the mandrel (9) rotating and install, is provided with and engages and the dish gear train (12) transmitted that is used as power, it is characterized in that between this mandrel with horizontal inner arm (11) output in this arm head:

A, described countershaft (3) input are provided with the outer minor axis (16) be tightly connected, this outer minor axis is rotatably installed in main shaft (2), outer minor axis (16) outer end is stretched out main shaft (2) and is installed countershaft gear (31), tracheae (4) is provided with in countershaft (3) and outer minor axis (16), this tracheal strips forms the first air pipe passway (41), forms the second air pipe passway (42) between tracheae (4) and countershaft (3), outer minor axis (16);

Middle inlet channel (91) and inclined inlet channel (92) is provided with in b, described mandrel (9), be provided with the second gas tube (8) interconnected in this between inlet channel (91) and the second air pipe passway (42), between this inclined inlet channel (92) and first air pipe passway (41), be provided with the first gas tube (7) interconnected.

2. two inflation rotational molding machine L arm according to claim 1, it is characterized in that described countershaft (3) output is provided with the interior minor axis (6) be tightly connected, this interior minor axis is rotatably installed in vertical arm (14), the Chain conveyer syndeton (15) that being provided with between interior minor axis (6) and horizontal inner arm (11) input is used as power transmits; Described tracheae (4) stretches in interior minor axis (6), first air cavity (61) of connection first air pipe passway (41) is provided with in this interior minor axis, interior minor axis (6) is provided with second air cavity (62) of connection second air pipe passway (42), described the first gas tube (7) is done to be communicated with the first air cavity (61) and is installed, and the second gas tube (8) is done to be communicated with the second air cavity (62) and installed.

3. two inflation rotational molding machine L arm according to claim 2, is characterized in that being provided with the seal (63) that two are arranged on the second air cavity (62) both sides respectively between described interior minor axis (6) and vertical arm (14).

4. two inflation rotational molding machine L arm according to claim 2, it is characterized in that being filled with atmosphere gas in described the first air pipe passway (41) interconnected, the first air cavity (61) and inclined inlet channel (92), in the second air pipe passway (42) interconnected, the second air cavity (62) and middle inlet channel (91), be filled with gases at high pressure.

5. two inflation rotational molding machine L arm according to claim 1 and 2, is characterized in that described the first gas tube (7) and the second gas tube (8) are all in L-type.

6. two inflation rotational molding machine L arm according to claim 5, is characterized in that described L-type first gas tube (7) and L-type second gas tube (8) are all close to L arm and are exposed setting.