A cotton yarn high temperature steam sterilization and disinfection equipment

Abstract

The present invention belongs to the technical field of cotton yarn, and specifically discloses a cotton yarn high-temperature steam sterilization and disinfection device, including a high-temperature steam pot, the internal translation and sliding of the high-temperature steam pot is provided with a swing mechanism, the front end of the swing mechanism is arranged with three bracket mechanisms, the front end of the high-temperature steam pot is provided with a material storage rack, the inner side of the material storage rack is arranged with three material storage plates, and the three material storage plates correspond to the three bracket mechanisms respectively. By setting the swing mechanism and the bracket mechanism, the cotton yarn will slide to the front end of the bracket mechanism under the action of its own gravity, and the cotton yarn can be quickly unloaded. At the same time, the arrangement of the cotton yarn can reduce the contact area between the cotton yarns, which is beneficial to the high-temperature steam sterilization and disinfection of the cotton yarn.

Description

Technical Field

[0001] The invention belongs to the field of cotton yarn, and specifically discloses a cotton yarn high-temperature steam sterilization and disinfection device. Background Art

[0002] Cotton yarn is a yarn made from cotton fibers through spinning technology, and is called cotton thread after being plied. The principle of high-temperature steam sterilization is to use high temperature to denature or coagulate the proteins and enzymes of microorganisms, thereby destroying their structure, causing loss of function, hindering metabolism and causing death, thereby achieving the purpose of sterilization and disinfection. Cotton yarn and other textiles can effectively kill or inhibit the microorganisms attached to them after being treated with high-temperature steam, ensuring the health and safety of users.

[0003] In the existing cotton yarn high-temperature steam sterilization equipment, the cotton yarn is stacked and placed in a tray, and then the tray is directly pushed into the equipment. In this way, the contact area between the cotton yarns is large, which affects the high-temperature steam sterilization operation of the cotton yarn. At the same time, when the tray is pushed and pulled, the cotton yarn will shake and easily fall, making it more troublesome to take the material. Summary of the invention

[0004] In view of this, the purpose of the present invention is to propose a cotton yarn high-temperature steam sterilization and disinfection equipment to solve the problem that the cotton yarns in the prior art are stacked in a tray and then the tray is directly pushed into the equipment. In this way, the contact area between the cotton yarns is large, which affects the high-temperature steam sterilization and disinfection operation of the cotton yarns. At the same time, during the pushing and pulling of the tray, the cotton yarns will shake and are prone to falling, making it troublesome to retrieve the materials.

[0005] To achieve the above purpose, the present invention provides a cotton yarn high-temperature steam sterilization and disinfection device, comprising a high-temperature steam pot, a swing mechanism is arranged inside the high-temperature steam pot for translational sliding, three bracket mechanisms are arranged and installed at the front end of the swing mechanism, a material storage rack is arranged at the front end of the high-temperature steam pot, three material storage plates are arranged and installed on the inner side of the material storage rack, and the three material storage plates correspond to the three bracket mechanisms respectively, a rotating shaft is arranged at the end face of the rear of the material storage plate, and the rear end of the material storage plate is connected to the material storage rack through the rotating shaft, an arc groove is opened on the surface of the material storage rack, a spring is arranged inside the arc groove, a convex plate is arranged at the front end of the material storage plate, and a protruding column is arranged at the end of the convex plate, the protruding column is movably installed inside the arc groove, and the top end of the spring is connected to the protruding column, an arc edge groove is opened on the surface of the material storage plate, a plurality of cotton yarns are arranged inside the arc edge groove, and a round tube is sleeved inside the cotton yarn.

[0006] In the above technical scheme, preferably, the swing mechanism includes a moving bar, an inner column is movably arranged inside the moving bar, three openings are evenly arranged on the surface of the moving bar, three plug-in interfaces are evenly arranged on the surface of the inner column, the plug-in interfaces correspond to the openings, a T-shaped column is fixedly installed inside the plug-in interface, a semicircular frame is installed on the surface of the moving bar and on the side of the opening, the bracket mechanism includes a swing rod, a cross rod is fixedly installed on the front end of the swing rod, a plurality of light rods are evenly arranged on the surface of the cross rod, the surface of the swing rod passes through the opening and is movably installed in the plug-in interface, and the end of the swing rod is sleeved on the surface of the T-shaped column, and the two sides of the swing rod are connected to the semicircular frame through a rotating rod.

[0007] In the above technical scheme, preferably, a first slide bar is provided at the bottom of the inner wall of the high-temperature steam pot, a lifting block is provided at the front end of the upper surface of the first slide bar, a second slide bar is provided at the top of the inner wall of the high-temperature steam pot, a lifting bar is provided at the bottom of the second slide bar, an inclined surface is provided at the front end of the lifting bar, the inclined surface cooperates with the lifting block, the upper and lower end surfaces of the inner column are provided with inclined surfaces, the inclined surfaces of the upper and lower end surfaces respectively correspond to the inclined surfaces and the lifting block, the upper and lower end surfaces of the movable bar are provided with extension blocks, and the extension blocks are clamped on the sides of the first slide bar and the second slide bar.

[0008] In the above technical solution, preferably, a plurality of through grooves are arranged on the surface of the convex plate, and the through grooves correspond to the light rods. A positioning circular groove and a plate groove are opened on the surface of the convex plate. The positioning circular groove is arranged at the center of the convex plate, and the positioning circular groove corresponds to the through groove in the middle. The plate groove is arranged on both sides of the positioning circular groove, and the plate groove is located on the upper and lower end surfaces of the through groove. A material blocking mechanism is installed corresponding to the positioning circular groove and the inside of the plate groove.

[0009] In the above technical solution, preferably, the material blocking mechanism includes a circular ring, side wings are fixedly installed on both sides of the circular ring, a round cake is rotatably installed on the surface of the circular ring, a threaded hole is provided in the middle of the round cake, and a threaded surface corresponding to the threaded hole is provided on the surface of the light rod near the front end, the circular ring and the round cake are movably installed inside the positioning circular groove, and the side wings are movably installed inside the plate groove.

[0010] In the above technical solution, preferably, a semicircular groove is provided on the surface of the disc, a positioning mechanism is provided on the top of the convex plate, the positioning mechanism includes a bolt, the bolt thread passes through the convex plate and is installed inside the positioning circular groove, and a semicircular head is provided at the bottom of the bolt, and the semicircular head cooperates with the semicircular groove.

[0011] In the above technical solution, preferably, a support plate is fixedly installed on the bottom of the storage rack.

[0012] In the above technical solution, preferably, a cylinder is installed at the rear of the high-temperature steam cooker, and the output end of the cylinder is connected to the moving bar.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] By setting a swing mechanism and a bracket mechanism, when the swing mechanism moves to the front end of the high-temperature steam pot and the bracket mechanism is fully extended out of the high-temperature steam pot, the front end of the bracket mechanism tilts downward, and at the same time, with the cooperation of the rotating shaft, the arc groove, the spring and other structures, the material storage plate will always be parallel to the light rod, and the cotton yarn will slide toward the front end of the bracket mechanism under the action of its own gravity, so that the cotton yarn can be quickly unloaded. At the same time, the arrangement of the cotton yarn can reduce the contact area between the cotton yarns, which is beneficial to the high-temperature steam sterilization operation of the cotton yarn. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the high temperature steam cooker of the present invention;

[0017] Figure 3 It is a side sectional view of a high temperature steam cooker of the present invention;

[0018] Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle;

[0019] Figure 5 For the present invention Figure 2 The enlarged view of point D in the middle;

[0020] Figure 6 It is a schematic diagram of the material storage rack structure of the present invention;

[0021] Figure 7 This is a schematic structural diagram of a material storage rack from another perspective of the present invention;

[0022] Figure 8 For the present invention Figure 6 The enlarged view of point B in the middle;

[0023] Fig. 9 For the present invention Figure 7 Enlarged view of point C in the middle;

[0024] Fig.10 It is a schematic diagram of the structure of the material blocking mechanism of the present invention;

[0025] Fig.11 It is a schematic diagram of the cotton yarn structure of the present invention.

[0026] In the figure: 1. high-temperature steam pot; 2. first slide bar; 3. lifting block; 4. second slide bar; 5. lifting bar; 6. swing mechanism; 7. moving bar; 8. inner column; 9. opening; 10. plug interface; 11. T-shaped column; 12. bracket mechanism; 13. semicircular frame; 14. swing rod; 15. cross bar; 16. bare rod; 17. threaded surface; 18. material storage rack; 19. material storage plate; 20. rotating shaft; 21. arc groove; 22. spring; 23. extending column; 24. through groove; 25. positioning circular groove; 26. plate groove; 27. material blocking mechanism; 28. round cake; 29. ​​semicircular groove; 30. circular ring; 31. flank; 32. threaded hole; 33. positioning mechanism; 34. bolt; 35. semicircular head; 36. cotton yarn; 37. round tube. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] like Figure 1-Figure 11The cotton yarn high-temperature steam sterilization and disinfection equipment shown in the figure comprises a high-temperature steam pot 1, wherein a swing mechanism 6 is arranged inside the high-temperature steam pot 1 for translational sliding, and three support mechanisms 12 are arranged and installed at the front end of the swing mechanism 6. By setting the cooperation between the swing mechanism 6 and the support mechanism 12, when the swing mechanism 6 moves to the front end of the high-temperature steam pot 1 and the support mechanism 12 is fully extended out of the high-temperature steam pot 1, the front end of the support mechanism 12 tilts downward, and a material storage rack 18 is arranged at the front end of the high-temperature steam pot 1, and three material storage plates 19 are arranged and installed on the inner side of the material storage rack 18, and the three material storage plates 19 correspond to the three support mechanisms 12 respectively, and a rotating shaft 20 is arranged on the rear end face of the material storage plate 19, and the rear end of the material storage plate 19 is connected to the material storage rack 18 through the rotating shaft 20, and an arc groove 21 is provided on the surface of the material storage rack 18, and the inside of the arc groove 21 A spring 22 is provided, and a convex plate is provided at the front end of the material storage plate 19, and a protruding column 23 is provided at the end of the convex plate. The protruding column 23 is movably installed in the arc groove 21, and the top of the spring 22 is connected to the protruding column 23. An arc edge groove is provided on the surface of the material storage plate 19, and a plurality of cotton yarns 36 are arranged inside the arc edge groove. A round tube 37 is sleeved inside the cotton yarn 36. With the cooperation of the rotating shaft 20, the arc groove 21, the spring 22 and other structures, the material storage plate 19 will always correspond to the light rod 16 in parallel. When the bracket mechanism 12 is fully extended out of the high-temperature steam boiler 1, the cotton yarn 36 will slide to the front end of the bracket mechanism 12 under the action of its own gravity, so that the cotton yarn 36 can be quickly unloaded. At the same time, the arrangement of the cotton yarn 36 can reduce the contact area between the cotton yarn 36 and the cotton yarn 36, which is beneficial to the high-temperature steam sterilization operation of the cotton yarn 36.

[0030] The swing mechanism 6 includes a moving bar 7, an inner column 8 is movably arranged inside the moving bar 7, three openings 9 are evenly arranged on the surface of the moving bar 7, three plug-in ports 10 are evenly arranged on the surface of the inner column 8, the plug-in ports 10 correspond to the openings 9, a T-shaped column 11 is fixedly installed inside the plug-in port 10, a semicircular frame 13 is installed on the surface of the moving bar 7 and on the side of the opening 9, a bracket mechanism 12 includes a swing rod 14, a cross bar 15 is fixedly installed on the front end of the swing rod 14, a plurality of light rods 16 are evenly arranged on the surface of the cross bar 15, the surface of the swing rod 14 passes through the opening 9 and is movably installed in the plug-in port 10, and the end of the swing rod 14 is sleeved on the surface of the T-shaped column 11. The two sides of the swing rod 14 are connected to the semicircular frame 13 through a rotating rod. Through the cooperation of the swing mechanism 6 and the bracket mechanism 12, through the principle of lever, when the inner column 8 moves upward, the end of the swing rod 14 inside the plug-in interface 10 is lifted by the T-shaped column 11, with the semicircular frame 13 as the center, and the swing rod 14 on the other side of the semicircular frame 13 drops. At this time, the cross bar 15 and the light rod 16 will swing downward with the semicircular frame 13 as the center. At this time, the staff will pull the material storage rack 18 outward. Since the light rod 16 is in a tilted state, the cotton yarn 36 on the surface of the light rod 16 will slide down to the surface of the material storage plate 19 due to the tilt of the light rod 16 and its own gravity, thereby realizing rapid material retrieval.

[0031] The bottom of the inner wall of the high-temperature steam pot 1 is provided with a first slide bar 2, and the front end of the upper surface of the first slide bar 2 is provided with a lifting block 3. The top of the inner wall of the high-temperature steam pot 1 is provided with a second slide bar 4, and the bottom of the second slide bar 4 is provided with a lifting bar 5. The front end of the lifting bar 5 is provided with an inclined surface, which cooperates with the lifting block 3. The upper and lower end surfaces of the inner column 8 are provided with inclined surfaces, and the inclined surfaces of the upper and lower end surfaces correspond to the inclined surfaces and the lifting block 3 respectively. When the moving bar 7 moves to the front end of the high-temperature steam pot 1, the inclined surface at the bottom of the inner column 8 moves upward under the action of the lifting block 3. When the moving bar 7 is in the state inside the high-temperature steam pot 1, the inclined surface at the top of the inner column 8 presses the inner column 8 downward under the action of the lifting bar 5. The upper and lower end surfaces of the moving bar 7 are provided with extension blocks, which are clamped on the sides of the first slide bar 2 and the second slide bar 4. Under the action of the extension block, the stability of the moving bar 7 during movement can be ensured.

[0032] The surface of the convex plate is provided with a plurality of through grooves 24, which correspond to the light rod 16. When the movable bar 7 moves forward, the light rod 16 can be inserted into the through groove 24 to cooperate with the convex plate. The surface of the convex plate is provided with a positioning circular groove 25 and a plate groove 26. The positioning circular groove 25 is set at the center of the convex plate, and the positioning circular groove 25 corresponds to the through groove 24 in the middle. The plate groove 26 is set on both sides of the positioning circular groove 25, and the plate groove 26 is located at the upper and lower end surfaces of the through groove 24. The positioning circular groove 25 and the plate groove 26 are correspondingly installed with a material blocking mechanism 27. Under the action of the positioning circular groove 25 and the plate groove 26, the material blocking mechanism 27 can be installed inside the convex plate, and when the light rod 16 is inserted into the through groove 24, the light rod 16 will also cooperate with the material blocking mechanism 27.

[0033] The material blocking mechanism 27 includes a circular ring 30, on both sides of which side wings 31 are fixedly installed, a circular cake 28 is rotatably installed on the surface of the circular ring 30, a threaded hole 32 is provided in the middle of the circular cake 28, and a threaded surface 17 corresponding to the threaded hole 32 is provided on the surface of the polished rod 16 near the front end. The circular ring 30 and the circular cake 28 are movably installed inside the positioning circular groove 25, and the side wings 31 are movably installed inside the plate groove 26. When the polished rod 16 is inserted into the through groove 24, the polished rod 16 will also pass through the threaded hole 32. Since the circular cake 28 is rotatably installed on the surface of the circular ring 30, the threaded surface 17 on the surface of the polished rod 16 can be threadedly sleeved in the threaded hole 32. At this time, the material blocking mechanism 27 is positioned on the middle surface of the polished rod 16 under the action of the circular cake 28.

[0034] A semicircular groove 29 is provided on the surface of the round cake 28, and a positioning mechanism 33 is provided on the top of the convex plate. The positioning mechanism 33 includes a bolt 34. The bolt 34 is threaded through the convex plate and installed inside the positioning circular groove 25. A semicircular head 35 is provided at the bottom of the bolt 34. The semicircular head 35 cooperates with the semicircular groove 29. When the bolt 34 spirally penetrates the convex plate, the semicircular head 35 can be inserted into the semicircular groove 29 to achieve the positioning of the round cake 28.

[0035] A pallet is fixedly mounted on the bottom of the material storage rack 18, and the staff can use a hydraulic vehicle to carry the material storage rack 18.

[0036] A cylinder is installed at the rear of the high-temperature steam cooker 1, and the output end of the cylinder is connected to the moving bar 7. The cylinder can drive the moving bar 7 to move inside the high-temperature steam cooker 1 to ensure the integrity of the structure.

[0037] Working principle: First, the swing mechanism 6 is pushed to the front of the high-temperature steam boiler 1 by the cylinder. During the movement of the swing mechanism 6, the inclined surface at the top of the inner column 8 presses the inner column 8 downward under the action of the lifting bar 5. At this time, the plug-in interface 10 on the surface of the inner column 8 is on the same horizontal line as the opening 9, and the bracket mechanism 12 and the swing mechanism 6 are in a vertical state. During this process, the light rod 16 inside the bracket mechanism 12 will pass through the round tube 37 in turn, so that the arranged cotton yarn 36 is installed on the surface of the light rod 16 in turn, and then the swing mechanism 6 Continue to move forward, the light rod 16 can be inserted into the through groove 24, and then when the moving bar 7 moves to the front end of the high-temperature steam pot 1, the inclined surface at the bottom of the inner column 8 moves upward under the action of the jacking block 3, the inner column 8 moves upward, the plug-in port 10 gradually moves upward, and the end of the swing rod 14 inside the plug-in port 10 is lifted by the T-shaped column 11, with the semicircular frame 13 as the center, and the swing rod 14 on the other side of the semicircular frame 13 is lowered. At this time, the cross bar 15 and the light rod 16 will swing downward with the semicircular frame 13 as the center, and the storage plate 19 is pressed downward by the end of the polished rod 16 under the cooperation of the rotating shaft 20, the arc groove 21, the spring 22 and other structures, and the material storage plate 19 is always parallel to the polished rod 16. At the same time, the threaded surface 17 on the surface of the polished rod 16 can be threadedly sleeved in the threaded hole 32, and the round cake 28 is positioned on the surface of the middle polished rod 16. The cylinder drives the swing mechanism 6 to move inside the high-temperature steam pot 1. Under the action of the blocking mechanism 27, the cotton yarn 36 will also be brought into the high-temperature steam pot 1 to achieve high-temperature steam sterilization of the cotton yarn 36. , the cylinder pushes the swing mechanism 6 toward the front of the high-temperature steam boiler 1 again. After the above working process, the staff screws the bolt 34 through the convex plate, and the semicircular head 35 is inserted into the semicircular groove 29. At this time, the round cake 28 can be positioned inside the positioning circular groove 25, and the cotton yarn 36 is placed in the arc groove under the action of the inclination of the polished rod 16 and its own gravity. The bottom of the cotton yarn 36 is placed in the arc groove, and the swing mechanism 6 is moved toward the inside of the high-temperature steam boiler 1 again, and the polished rod 16 will be pulled out of the round tube 37 to realize the feeding operation of the cotton yarn 36.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A cotton yarn high-temperature steam sterilization device, comprising a high-temperature steam pot (1), characterized in that: The high-temperature steam pot (1) is provided with a swing mechanism (6) for translational sliding inside. Three support mechanisms (12) are arranged and installed at the front end of the swing mechanism (6). The high-temperature steam pot (1) is provided with a material storage rack (18) at the front end. Three material storage plates (19) are arranged and installed inside the material storage rack (18). The three material storage plates (19) correspond to the three support mechanisms (12) respectively. A rotating shaft (20) is provided at the rear end surface of the material storage plate (19). The rear end of the material storage plate (19) is connected to the material storage rack (18) via the rotating shaft (20). An arc groove (21) is provided on the surface of the material storage rack (18). A spring (22) is provided inside the arc groove (21). The material storage plate (19) A convex plate is provided at the front end, a protruding column (23) is provided at the end of the convex plate, the protruding column (23) is movably mounted inside the arc groove (21), and the top end of the spring (22) is connected to the protruding column (23), an arc edge groove is provided on the surface of the material storage plate (19), a plurality of cotton yarns (36) are arranged inside the arc edge groove, a round tube (37) is sleeved inside the cotton yarn (36), the bracket mechanism (12) comprises a swing rod (14), a cross rod (15) is fixedly mounted at the front end of the swing rod (14), a plurality of light rods (16) are evenly arranged on the surface of the cross rod (15), and a plurality of through grooves (24) are provided on the surface of the convex plate, and the through grooves (24) correspond to the light rods (16).

2. A cotton yarn high temperature steam sterilization equipment according to claim 1, characterized in that: The swing mechanism (6) comprises a moving bar (7), an inner column (8) is movably arranged inside the moving bar (7), three openings (9) are evenly arranged on the surface of the moving bar (7), three plug-in ports (10) are evenly arranged on the surface of the inner column (8), the plug-in ports (10) correspond to the openings (9), a T-shaped column (11) is fixedly installed inside the plug-in port (10), a semicircular frame (13) is arranged on the surface of the moving bar (7) and on the side of the opening (9), and the end of the swing rod (14) is sleeved on the surface of the T-shaped column (11), and the two sides of the swing rod (14) are connected to the semicircular frame (13) through rotating rods.

3. A cotton yarn high temperature steam sterilization equipment according to claim 2, characterized in that: A first slide bar (2) is arranged at the bottom of the inner wall of the high-temperature steam pot (1), and a lifting block (3) is arranged at the front end of the upper surface of the first slide bar (2). A second slide bar (4) is arranged at the top of the inner wall of the high-temperature steam pot (1), and a lifting block (5) is arranged at the bottom of the second slide bar (4). An inclined surface is arranged at the front end of the lifting block (5), and the inclined surface cooperates with the lifting block (3). The upper and lower end surfaces of the inner column (8) are both provided with inclined surfaces, and the inclined surfaces of the upper and lower end surfaces correspond to the inclined surface and the lifting block (3) respectively. The upper and lower end surfaces of the movable bar (7) are both provided with extension blocks, and the extension blocks are clamped on the sides of the first slide bar (2) and the second slide bar (4).

4. A cotton yarn high temperature steam sterilization equipment according to claim 2, characterized in that: A positioning circular groove (25) and a plate groove (26) are provided on the surface of the convex plate. The positioning circular groove (25) is arranged at the center of the convex plate, and the positioning circular groove (25) corresponds to the through groove (24) in the middle. The plate groove (26) is arranged on both sides of the positioning circular groove (25), and the plate groove (26) is located at the upper and lower end surfaces of the through groove (24). A material blocking mechanism (27) is correspondingly installed inside the positioning circular groove (25) and the plate groove (26).

5. A cotton yarn high temperature steam sterilization equipment according to claim 4, characterized in that: The material blocking mechanism (27) comprises a circular ring (30), with side wings (31) fixedly mounted on both sides of the circular ring (30), a round cake (28) rotatably mounted on the surface of the circular ring (30), a threaded hole (32) being provided in the middle of the round cake (28), a threaded surface (17) corresponding to the threaded hole (32) being provided on the surface of the polished rod (16) close to the front end, the circular ring (30) and the round cake (28) being movably mounted inside the positioning circular groove (25), and the side wings (31) being movably mounted inside the plate groove (26).

6. A cotton yarn high temperature steam sterilization equipment according to claim 5, characterized in that: A semicircular groove (29) is provided on the surface of the round cake (28); a positioning mechanism (33) is provided on the top of the convex plate; the positioning mechanism (33) comprises a bolt (34); the bolt (34) is threadedly passed through the convex plate and is installed inside the positioning circular groove (25); a semicircular head (35) is provided at the bottom of the bolt (34); the semicircular head (35) cooperates with the semicircular groove (29).

7. The cotton yarn high temperature steam sterilization equipment according to claim 1, characterized in that: A support plate is fixedly mounted on the bottom of the material storage rack (18).

8. The cotton yarn high temperature steam sterilization equipment according to claim 3, characterized in that: A cylinder is installed at the rear of the high-temperature steam boiler (1), and the output end of the cylinder is connected to the moving bar (7).

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