[0016] Such as figure 1 , 2 , 3 shows: the fully automatic test tube dry ice cleaning machine of the present invention includes a dry ice cleaning part in the middle and a symmetrically arranged conveying part on both sides of the dry ice cleaning part.
[0017] The conveying parts on the left and right have the same configuration. Including a conveying frame 18, the upper ends of the conveying frame 18 are respectively installed with a driving roller 3 and a driven roller 17 through shafts and bearings. The shaft end of the driving roller 3 is connected to the conveying driving mechanism. The conveying driving mechanism includes mounting There is a transmission transmission pair 1 between the conveying motor 2 on the conveying frame 18, the output shaft of the conveying motor 2 and the shaft end of the driving roller 3, and the conveying transmission pair 1 can be a chain mechanism or a belt mechanism.
[0018] A belt 4 is wound around the driving roller 3 and the driven roller 17, and a baffle 5 is arranged on the belt 4 at intervals. The baffle 5 prevents the conveyed articles on the belt 4 from sliding relative to the belt 4.
[0019] Symmetrical and parallel side plates 6 are fixed on both sides of the upper end of the conveying frame 18, and symmetrical side grooves 28 are provided on the inner side of the upper side of the side plate 6. The belt 4 is equipped with a box holder 9 for inserting test tubes 10, and the bottom side of the box holder 9 has edges extending to the outside. The edges match the side grooves 28. The box holder 9 is attached to the belt 4 When the belt moves, the edge can slide in the side groove 28.
[0020] The dry ice cleaning part includes a frame composed of two vertical plates 13 arranged in parallel, a bottom plate 14 located at the lower end of the vertical plate 13, and a cross beam 8 located on the side of the vertical plate 13 connected to the upper end of the vertical plate 13.
[0021] A turning frame 19 is rotatably connected to the upper end of the frame between the two vertical plates 13 through a shaft 25. The end of the rotating shaft 25 is connected to a turning drive mechanism. The turning drive mechanism includes a bracket 21. A turning motor 24 is installed on the bracket 21. There is a turning drive pair 23 between the output shaft of the turning motor 24 and the shaft end of the turning shaft 25. 23 can be a chain mechanism or a belt mechanism.
[0022] The turning frame 19 matches the box frame 9, and the edges extending outward on both sides of the bottom edge of the turning frame 19 are located in the grooves on the turning frame 19 that match the edges to ensure that the test tube on the box frame 9 is rotated by 90° When the upper mouth is downward, the box rack 9 can be hung on the turning rack 19 without falling off.
[0023] A steering gear 11 is provided on the turning frame 19, the output shaft of the steering gear 11 is equipped with a gear, and the bottom surface of the box frame 9 is provided with a rack that meshes with the gear. The steering gear 11 can also be replaced by a motor reducer, and the output shaft of the motor reducer is equipped with a gear, which meshes with the rack under the box frame 9.
[0024] A dry ice machine 15 is provided on the bottom plate 14, and a lifting box 16 is provided above the dry ice machine 15. The inner cavity of the lifting box 16 is connected with the ice spray port of the dry ice machine 15 through a telescopic tube 22, and the upper end of the telescopic tube 22 It is connected with the interface under the lifting box 16 to ensure that the inner cavity of the lifting box 16 is connected to the ice spray port of the dry ice machine 15 through the telescopic tube 22.
[0025] A nut is fixed on the lifting box 16, the nut is threadedly connected with the screw 7 arranged vertically, the screw 7 is connected to the rotation driving mechanism, and the screw 7 is rotatably connected with the frame and is axially limited. The rotation drive mechanism includes a motor reducer mounted on the beam 8. A gear transmission pair is provided between the output shaft of the motor reducer and the upper end of the screw 7. The motor reducer can drive the screw 7 to rotate, and the screw 7 passes through it. The matched nut drives the lifting box 16 to move up and down. The upper and lower ends of the lead screw 7 are rotatably connected with the cross beam 8 and the bottom plate 14 through bearings.
[0026] A guide post 20 is provided on the frame, and a guide sleeve 27 matched with the guide post 20 is fixed on the lifting box 16.
[0027] A plurality of vertically arranged ice spray pipes 12 are connected to the lifting box 16. The inner cavity of the ice spray pipe 12 is communicated with the inner cavity of the lifting box 16, and an ice spray port is provided at the upper end of the ice spray pipe 12.
[0028] After the turning frame 19 is rotated downwards, the ports of the test tubes 10 inserted on the box frame 9 can correspond exactly to the ice spray tubes 12 one by one.
[0029] In the fully automatic test tube dry ice cleaning machine of the present invention, the steering gear 11, the motors, and the dry ice machine 15 are all connected with the control device. After the lifting box 16 is moved into position and the turning frame 19 is rotated into position, it can be connected with the control device. Position switch for positioning control. When in use, the test tube 10 is fastened and inserted on the box rack 9. The box rack 9 is placed on the belt 4 of the conveying part on one side, and the box rack 9 is transferred to the middle position through the baffle 5 and the belt 4, when the box rack 9 When the front part of the box reaches the turning frame 19, the steering gear 11 drives the gear to rotate, and the gear drives the box frame 9 to continue to move, so that the box frame 9 is all located on the turning frame 19, and the edges on both sides of the bottom side of the box frame 9 are stuck in the turning frame. In the corresponding slot on 19. Then the turning motor moves, driving the turning frame 19 and the box frame 9 to rotate 180° so that the upper mouth of the test tube 10 faces downward, and the upper mouth of each test tube 10 is opposite to the upper end of one of the ice spray tubes 12, and then it is connected to the lead screw 7. The connected motor reducer drives the lead screw 7 to rotate, and drives the lifting box 16 to move up, so that each ice spray tube 12 is inserted into each test tube 10. After being stopped by the position switch, the dry ice machine 15 runs through the telescopic tube 22, The lifting box 16, each ice spray tube 12 and the ice spray port at the upper end of the ice spray tube 12 spray dry ice into the test tube 10, and dry ice wash the test tube 10. The dirt formed after washing falls off and is removed from the test tube under the test tube. The bottom plate made of ion exchange resin is collected. After cleaning, the components are driven by the drive mechanism to perform opposite actions to return, so that the upper mouth of the test tube 10 faces upwards, and the steering gear 11 drives the box holder 9 to convey to the other side of the conveying part, so that the box holder 9 reaches the belt on the other side. 4, remove the box rack 9 after transporting it in place. It has the advantages of batch cleaning, high degree of automation, time-saving and labor-saving, thorough cleaning, low cost and low energy consumption.
