An online eccentric adjustment mechanism for chassis of a drawing frame

Abstract

The present invention provides an eccentric online adjustment mechanism for the chassis of a drawing frame, wherein a pallet box assembly comprises a pallet box with an opening facing backward, a pulley and a dynamic tensioning wheel, the pulley and the dynamic tensioning wheel can be axially rotatably installed on the pallet box, the dynamic tensioning wheel can be slidably installed on the pallet box, and two pallet boxes can be installed in a movable chamber in a left-right direction; the first fixed tensioning wheel can be rotatably installed on a bottom plate; the first toothed belt is sequentially wound around a small pulley, one of the pulleys, two dynamic tensioning wheels and the periphery of another pulley, and the first fixed tensioning wheel is meshed with the outer side of the first toothed belt; the two second fixed tensioning wheels can be rotatably installed on the bottom plate and meshed with the outer side of the first toothed belt; the two driving mechanisms are respectively located in two adjustment chambers, and the driving rod of the driving mechanism passes through a perforation and is located in the adjustment chamber, driving the pallet box to move in the left-right direction. The beneficial effects of the technical solution proposed by the present invention are: it eliminates the work of disassembling a large number of parts in the past, and the adjustment is convenient and quick, which greatly improves the efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of textile machinery, in particular to an eccentric online adjustment mechanism for a chassis of a drawing frame. Background Art

[0002] Due to the needs of the process, the existing drawing frames on the market generally need to adjust the eccentricity of the chassis when the tension adjustment causes a large gap between the output sliver and the can wall. First, remove the left and right bottom plate covers and the sliver can chassis, then loosen the belt tensioning device, loosen the left and right bases and move them to the required position and fix them, finally re-tighten the belt, install the sliver can chassis and bottom plate covers, and test run until they meet the requirements. These tasks are cumbersome and increase the labor intensity of employees, affecting the production efficiency of the drawing frame. Summary of the invention

[0003] In view of this, in order to solve the above problems, an embodiment of the present invention provides an online eccentricity adjustment mechanism for a chassis of a drawing frame.

[0004] An embodiment of the present invention provides an online eccentricity adjustment mechanism for a chassis of a drawing frame, comprising:

[0005] The bottom plate is provided with a plurality of chambers with openings facing backward and arranged at intervals, including two adjustment chambers, a moving chamber and a driving chamber, the two adjustment chambers are respectively located on the left and right sides of the moving chamber, and the driving chamber is located on one side of the moving chamber and the adjustment chamber;

[0006] Two pallet box assemblies, the pallet box assemblies comprising a pallet box with an opening facing backward, a belt pulley and a dynamic tensioning wheel, the belt pulley and the dynamic tensioning wheel can be axially rotatably mounted on the pallet box, the dynamic tensioning wheel can be slidably mounted on the pallet box, the two pallet boxes can be movably mounted in the movable chamber in the left and right directions, and are opposite to the adjustment chambers one by one;

[0007] A first fixed tensioning wheel is rotatably mounted on the bottom plate and is located between the two pallet boxes, and the movable tensioning wheel is located between the first fixed tensioning wheel and the pulley;

[0008] A bearing seat, axially rotatably mounted on the bottom plate, located in the driving chamber, with a small pulley fixed on the bearing seat;

[0009] A first toothed belt is sequentially wound around the small pulley, one of the pulleys, the two movable tensioning pulleys and the periphery of the other pulley, and the positions of the moving chamber, the driving chamber, the pallet box and the first toothed belt relative to each other are all penetrated with through holes for the first toothed belt to pass through, and the first fixed tensioning pulley is meshed with the outer side of the first toothed belt;

[0010] Two second fixed tension wheels are rotatably mounted on the bottom plate and meshed with the outer side of the first toothed belt. The two second fixed tension wheels are located on both sides of the bearing seat, and each second fixed tension wheel is located between the bearing seat and each belt pulley; and,

[0011] Two driving mechanisms are respectively located in the two adjusting chambers. A through hole is penetrated through the side of the adjusting chamber facing the movable chamber. The driving rod of the driving mechanism passes through the through hole and is located in the adjusting chamber to drive the pallet box to move in the left and right directions.

[0012] Furthermore, each of the pallet boxes is provided with a swing arm assembly, and the swing arm assembly includes a swing arm member and a positioning member. One end of the swing arm member is hinged to the pallet box to form a hinge point, and the other end can rotate around the hinge point. The dynamic tensioning wheel is fixed on the swing arm member, and the positioning member is used to position the swing arm member after the swing arm member rotates.

[0013] Furthermore, the swing arm member is penetrated by an arc-shaped through hole, the support plate box is provided with a first threaded hole, one end of the clamping screw passes through the arc-shaped through hole and is connected to the first threaded hole, and the other end abuts against the swing arm member.

[0014] Furthermore, a gas spring is hinged between the swing arm and the support box.

[0015] Furthermore, the upper end of the gas spring is connected to the pallet box via a rotating block, the rotating block is rotatably mounted on the pallet box, and the gas spring is hinged to the rotating block.

[0016] Furthermore, the driving mechanism includes a fixed seat and an adjusting screw, the fixed seat is fixed to the base plate, the adjusting screw can be axially rotatably installed on the fixed seat, the movable chamber, the pallet box and the positions relative to the through-hole are all penetrated by a clearance hole, a nut is welded on the inside of the pallet box, one end of the adjusting screw passes through the through-hole and the clearance hole and cooperates with the nut thread, and the other end is used to be located on the side of the fixed seat away from the pallet box.

[0017] Furthermore, the regulating chamber is covered with a detachable first cover plate.

[0018] Furthermore, a plurality of distance blocks are fixed on the pallet box, and the distance blocks are penetrated by strip-shaped through holes extending in the left and right directions. The bottom plate is provided with a plurality of second threaded holes corresponding to the distance blocks one by one, and one end of the fastening screw passes through the strip-shaped through holes and is connected to the second threaded holes, and the other end abuts against the distance block.

[0019] Furthermore, the two pallet boxes are covered with a second cover plate, the second cover plate is located behind the bottom plate, the second cover plate is provided with a make way hole at a position opposite to the fastening screw, the two second cover plates are spaced apart to form a moving space, and a third cover plate is fixed on the bottom plate, the third cover plate is located behind the second cover plate and covers the moving space.

[0020] Furthermore, a rear tensioning wheel, a lower vertical bearing seat and a second toothed belt are provided in the driving chamber, the lower vertical bearing seat is installed on the base plate, a toothed wheel is rotatably installed on the lower vertical bearing seat, a large pulley is fixed on the bearing seat, the second toothed belt is wrapped around the toothed wheel and the large pulley, and the rear tensioning wheel is meshed with the outer side of the second toothed belt.

[0021] The beneficial effect brought about by the technical solution provided by the embodiment of the present invention is: when you want to adjust the position of the pallet box, loosen the fastening screw and the clamping screw, remove the first cover plate on the movable chamber, and move the pallet box to the left and right by rotating the adjusting screw. Since a dynamic tensioning wheel that can be slidably mounted on the pallet box is provided, the first toothed belt can always be kept in a tensioned state, eliminating the work of disassembling a large number of parts in the past, and the adjustment is convenient and quick, which greatly improves the efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of an embodiment of an online adjustment mechanism for the eccentricity of a chassis of a drawing frame provided by the present invention;

[0023] Figure 2 yes Figure 1 A schematic diagram of the structure of the online eccentric adjustment mechanism of the chassis of the middle drawing frame (a first cover plate, a second cover plate and a third cover plate are hidden);

[0024] Figure 3 yes Figure 2 Enlarged schematic diagram at point A in the middle.

[0025] In the figure: base plate 1, adjusting chamber 11, moving chamber 12, driving chamber 13, rear tensioning wheel 13a, lower bearing seat 13b, second toothed belt 13c, first cover plate 14, pallet box assembly 2, pallet box 21, pulley 22, dynamic tensioning wheel 23, distance block 24, strip through hole 24a, fastening screw 25, first fixed tensioning wheel 3, bearing seat 4, small pulley 41, first toothed belt 5, second fixed tensioning wheel 6, driving mechanism 7, fixed seat 71, adjusting screw 72, nut 73, swing arm member 8, arc through hole 81, gas spring 82, clamping screw 83, second cover plate 9, give way through hole 91, third cover plate 10. DETAILED DESCRIPTION

[0026] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0027] See also Figures 1 to 3 An embodiment of the present invention provides an eccentric online adjustment mechanism for a drawing frame chassis, comprising a base plate 1, two pallet box assemblies 2, a first fixed tensioning wheel 3, a bearing seat 4, a first toothed belt 5, two second fixed tensioning wheels 6 and two driving mechanisms 7.

[0028] The bottom plate 1 is provided with a plurality of chambers with openings facing backward and arranged at intervals, including two adjusting chambers 11, a movable chamber 12 and a driving chamber 13. The two adjusting chambers 11 are respectively located on the left and right sides of the movable chamber 12, and the driving chamber 13 is located on one side of the movable chamber 12 and the adjusting chamber 11. In this embodiment, the driving chamber 13 is located on the upper side of the movable chamber 12 and the adjusting chamber 11.

[0029] Each pallet box assembly 2 includes a pallet box 21 with an opening facing backward, a pulley 22 and a dynamic tensioning wheel 23. The pulley 22 and the dynamic tensioning wheel 23 can be axially rotatably mounted on the pallet box 21, and the dynamic tensioning wheel 23 can be slidably mounted on the pallet box 21. The two pallet boxes 21 can be movably mounted in the movable chamber 12 in the left and right directions, and are opposite to the adjustment chamber 11 one by one. The pallet box 21 can be slidably mounted on the bottom plate 1 by means of a guide rail and a slide groove, and the fixation of the pallet box 21 is achieved by the friction between the guide rail and the slide groove. In this embodiment, a plurality of distance blocks 24 are fixed on the pallet box 21. Specifically, the four corners of the pallet box 21 are all provided with distance blocks 24. The distance blocks 24 are penetrated with strip-shaped through holes 24a extending in the left and right directions. The bottom plate 1 is provided with a plurality of second threaded holes corresponding to the distance blocks 24. One end of the fastening screw 25 passes through the strip-shaped through hole 24a and is connected to the second threaded hole, and the other end abuts against the distance block 24. The pallet box 21 can be moved left and right by loosening the fastening screw 25, and the pallet box 21 can be positioned by tightening the fastening screw 25. The operation is simple and the fixing strength of the pallet box 21 can be ensured at the same time.

[0030] The two driving mechanisms 7 are respectively located in the two adjusting chambers 11. A through hole is provided on the side of the adjusting chamber 11 facing the moving chamber 12. The driving rod of the driving mechanism 7 passes through the through hole and is located in the adjusting chamber 11, driving the pallet box assembly 2 to move in the left and right directions. The driving mechanism 7 can be a one-way cylinder, etc. In this embodiment, the driving mechanism 7 includes a fixed seat 71 and an adjusting screw 72. The fixed seat 71 is fixed on the bottom plate 1. The adjusting screw 72 can be axially rotatably installed on the fixed seat 71. The adjusting screw 72 extends in the left and right directions. The positions of the moving chamber 12 and the pallet box 21 relative to the through hole are all penetrated with a clearance through hole. A nut 73 is welded on the inner side of the pallet box 21. One end of the adjusting screw 72 passes through the through hole and the clearance through hole and is threadedly matched with the nut 73, and the other end is used to be located on the side of the fixed seat 71 away from the pallet box 21. By rotating the adjusting screw 72, the pallet box 21 can be driven to move left and right. In order to prevent dust and the like from entering the adjusting chamber 11, the adjusting chamber 11 is covered with a removable first cover plate 14. After the first cover plate 14 is removed, the adjusting screw 72 can be manually rotated to adjust the pallet box 21.

[0031] The first fixed tensioning wheel 3 is rotatably mounted on the bottom plate 1 and is located between the two pallet boxes 21 . The movable tensioning wheel 23 is located between the first fixed tensioning wheel 3 and the pulley 22 .

[0032] The bearing seat 4 can be axially rotatably mounted on the bottom plate 1 and is located in the driving chamber 13. A small pulley 41 is fixed on the bearing seat 4. A rear tensioning wheel 13a, a lower vertical bearing seat 13b and a second toothed belt 13c are also provided in the driving chamber 13. The lower vertical bearing seat 13b is mounted on the bottom plate 1. A toothed wheel is rotatably mounted on the lower vertical bearing seat 13b. A large pulley is fixed on the bearing seat 4. The second toothed belt 13c is arranged around the outer periphery of the toothed wheel and the large pulley. The rear tensioning wheel 13a is meshed with the outer side of the second toothed belt 13c. The lower vertical bearing seat 13b is used to be connected with the rotating shaft. The rotation of the rotating shaft drives the toothed wheel to rotate, thereby rotating the second toothed belt 13c, and then driving the bearing seat 4 to rotate.

[0033] The first toothed belt 5 is sequentially wound around the small pulley 41, one of the pulleys 22, the two movable tensioning wheels 23 and the periphery of the other pulley 22. The positions of the moving chamber 12, the driving chamber 13 and the pallet box 21 relative to the first toothed belt 5 are all penetrated with through holes for the first toothed belt 5 to pass through. The first fixed tensioning wheel 3 is meshed with the outside of the first toothed belt 5. The two second fixed tensioning wheels 6 can be rotatably mounted on the bottom plate 1 and meshed with the outside of the first toothed belt 5. The two second fixed tensioning wheels 6 are located on both sides of the bearing seat 4, and each second fixed tensioning wheel 6 is located between the bearing seat 4 and each pulley 22.

[0034] The rotation of the bearing seat 4 drives the first toothed belt 5 to rotate. When you want to adjust the position of the pallet box 21, loosen the fastening screws 25. In this embodiment, after loosening the fastening screws 25 on the four top corners of the pallet box 21, the first cover plate 14 on the movable chamber 12 is removed, and the pallet box 21 can be moved to the left and right directions by rotating the adjusting screw 72. Since a dynamic tensioning wheel 23 that can be slidably mounted on the pallet box 21 is provided, the first toothed belt 5 can always be kept in a tensioned state, eliminating the work of disassembling a large number of parts in the past. The adjustment is convenient and quick, and the efficiency is greatly improved.

[0035] In this embodiment, each of the pallet boxes 21 is provided with a swing arm assembly, and the swing arm assembly includes a swing arm member 8 and a positioning member. One end of the swing arm member 8 is hinged to the pallet box 21 to form a hinge point, and the other end can rotate around the hinge point. The dynamic tensioning wheel 23 is fixed on the swing arm member 8. The positioning member is used to position the swing arm member 8 after the swing arm member 8 rotates. The dynamic tensioning wheel 23 can be moved by rotating the swing arm member 8, so that the first toothed belt 5 is always in a tensioned state. Specifically, an arc-shaped through hole 81 is penetrated through the swing arm member 8, and a first threaded hole is provided on the pallet box 21. One end of the clamping screw 83 passes through the arc-shaped through hole 81 and is connected to the first threaded hole, and the other end abuts against the swing arm member 8. The clamping screw 83 is the positioning member. By loosening the clamping screw 83, the swing arm member 8 can be rotated to drive the dynamic tensioning wheel 23 to move, and by tightening the clamping screw 83, the swing arm member 8 can be fixed. A gas spring 82 is hinged between the swing arm 8 and the pallet box 21. The gas spring 82 pushes the swing arm 8 to keep the first toothed belt 5 in a tensioned state. Specifically, the upper end of the gas spring 82 is connected to the pallet box 21 through a rotating block, and the rotating block is rotatably mounted on the pallet box 21. The gas spring 82 is hinged to the rotating block to facilitate the connection between the gas spring 82 and the pallet box 21.

[0036] In order to prevent dust and the like from entering the moving chamber 12, the two pallet boxes 21 are covered with a second cover plate 9, which is located behind the bottom plate 1. The two second cover plates 9 are spaced apart to form a moving space, and a third cover plate 10 is fixed to the bottom plate 1, which is located behind the second cover plate 9 and covers the moving space. The pallet box 21 moves while driving the second cover plate 9 to move. The second cover plate 9 is provided with a clearance hole 91 at a position relative to the fastening screw 25, so that the fastening screw 25 can be adjusted without removing the second cover plate 9.

[0037] In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0038] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An online adjustment mechanism for the eccentricity of a drawing frame chassis, characterized in that: include: The bottom plate is provided with a plurality of chambers with openings facing backward and arranged at intervals, including two adjustment chambers, a moving chamber and a driving chamber, the two adjustment chambers are respectively located on the left and right sides of the moving chamber, and the driving chamber is located on one side of the moving chamber and the adjustment chamber; Two pallet box assemblies, the pallet box assemblies comprising a pallet box with an opening facing backward, a belt pulley and a dynamic tensioning wheel, the belt pulley and the dynamic tensioning wheel can be axially rotatably mounted on the pallet box, the dynamic tensioning wheel can be slidably mounted on the pallet box, the two pallet boxes can be movably mounted in the movable chamber in the left and right directions, and are opposite to the adjustment chambers one by one; A first fixed tensioning wheel is rotatably mounted on the bottom plate and is located between the two pallet boxes, and the movable tensioning wheel is located between the first fixed tensioning wheel and the pulley; A bearing seat, axially rotatably mounted on the bottom plate, located in the driving chamber, with a small pulley fixed on the bearing seat; A first toothed belt is sequentially wound around the small pulley, one of the pulleys, the two movable tensioning pulleys and the periphery of the other pulley, and the positions of the moving chamber, the driving chamber, the pallet box and the first toothed belt relative to each other are all penetrated with through holes for the first toothed belt to pass through, and the first fixed tensioning pulley is meshed with the outer side of the first toothed belt; Two second fixed tension wheels are rotatably mounted on the bottom plate and meshed with the outer side of the first toothed belt. The two second fixed tension wheels are located on both sides of the bearing seat, and each second fixed tension wheel is located between the bearing seat and each belt pulley; and, Two driving mechanisms are respectively located in the two adjusting chambers, and a through hole is formed on one side of the adjusting chamber facing the moving chamber. A driving rod of the driving mechanism passes through the through hole and is located in the adjusting chamber to drive the pallet box to move in the left and right directions. Each of the pallet boxes is provided with a swing arm assembly, the swing arm assembly comprising a swing arm member and a positioning member, one end of the swing arm member is hinged with the pallet box to form a hinge point, and the other end can rotate around the hinge point, the dynamic tensioning wheel is fixed on the swing arm member, and the positioning member is used to position the swing arm member after the swing arm member rotates; The driving mechanism includes a fixed seat and an adjusting screw, the fixed seat is fixed to the base plate, the adjusting screw can be axially rotatably installed on the fixed seat, the movable chamber, the pallet box and the positions relative to the through-hole are all penetrated by a clearance hole, a nut is welded on the inner side of the pallet box, one end of the adjusting screw passes through the through-hole and the clearance hole and cooperates with the nut thread, and the other end is used to be located on the side of the fixed seat away from the pallet box.

2. The online eccentricity adjustment mechanism for the chassis of the drawing frame according to claim 1, characterized in that: The swing arm member is penetrated by an arc-shaped through hole, the support plate box is provided with a first threaded hole, one end of the clamping screw passes through the arc-shaped through hole and is connected to the first threaded hole, and the other end abuts against the swing arm member.

3. The online eccentricity adjustment mechanism for the chassis of the drawing frame according to claim 1, characterized in that: A gas spring is hinged between the swing arm member and the support plate box.

4. The online eccentricity adjustment mechanism for the chassis of the drawing frame according to claim 3, characterized in that: The upper end of the gas spring is connected to the pallet box via a rotating block, the rotating block is rotatably mounted on the pallet box, and the gas spring is hinged to the rotating block.

5. The on-line eccentricity adjustment mechanism for the chassis of the drawing frame according to claim 1, characterized in that: The regulating chamber is covered with a detachable first cover plate.

6. The online eccentricity adjustment mechanism for the chassis of the drawing frame according to claim 1, characterized in that: A plurality of distance blocks are fixed on the pallet box, and the distance blocks are penetrated by strip-shaped through holes extending in the left and right directions. The bottom plate is provided with a plurality of second threaded holes corresponding to the distance blocks one by one, and one end of the fastening screw passes through the strip-shaped through holes and is connected to the second threaded holes, and the other end abuts against the distance block.

7. The on-line eccentricity adjustment mechanism for the chassis of the drawing frame according to claim 6, characterized in that: The two pallet boxes are both covered with a second cover plate, which is located behind the bottom plate. The second cover plate is provided with a clearance hole at a position opposite to the fastening screw. The two second cover plates are spaced apart to form a moving space. A third cover plate is fixed on the bottom plate, which is located behind the second cover plate and covers the moving space.

8. The on-line eccentricity adjustment mechanism for the chassis of the drawing frame according to claim 1, characterized in that: The driving chamber is provided with a rear tensioning wheel, a lower vertical bearing seat and a second toothed belt, the lower vertical bearing seat is installed on the base plate, the lower vertical bearing seat is rotatably mounted with a toothed wheel, a large pulley is fixed on the bearing seat, the second toothed belt is arranged around the toothed wheel and the large pulley, and the rear tensioning wheel is meshed with the outer side of the second toothed belt.

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