Traction roller synchronous tool apron based on gap automatic compensation

Abstract

The utility model provides a traction roller synchronous tool apron based on clearance automatic compensation, which relates to the technical field of conveying equipment and comprises a traction mounting seat, a traction bottom roller and a traction rubber roller are mounted on the traction mounting seat, a mounting frame is mounted on the traction mounting seat, and a first rotating shaft and a second rotating shaft are rotatably mounted on the mounting frame. The first rotating shaft is in transmission connection with the traction bottom roller, the automatic clearance compensation device comprises two connecting discs, a middle disc is arranged between the two connecting discs, each connecting disc is hinged to the middle disc through a rocker arm assembly, one connecting disc is fixedly connected with the second rotating shaft, and the other connecting disc is in transmission connection with the traction rubber roller. Through flexible swinging of the gap automatic compensation device, the radial gap between the traction rubber roller and the traction bottom roller is automatically compensated, the situation that the traction rubber roller and the traction bottom roller rotate asynchronously is avoided, and synchronous conveying of multiple layers of materials with different thicknesses is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a traction roller synchronous knife seat based on automatic gap compensation. Background Art

[0002] The rotation and power transmission of the drive shaft on the tool holder of the circular knife machine mostly rely on the gears on the drive shaft. The rollers on each drive shaft are arranged on the tool holder in a certain order and are close to each other. They rely on roller pillows with the same diameter as the gear pitch circle to achieve tangential contact with each other. According to the principle of gear transmission, when the gears of each roller are meshed with each other and the rollers are in tangential contact, the linear speed of the outer side of the roller surface can be guaranteed to be the same. Therefore, when the two roller shafts cannot meet the gear meshing at the pitch circle, or although the gears are correctly meshed, the roller shafts cannot achieve tangential contact, the two roller shafts that cooperate with each other will have a speed difference in the linear speed of the outer side of the corresponding roller surface.

[0003] At present, a common case is that in the traction knife seat, when the traction rubber roller passes through materials of different thicknesses, the gears cannot mesh at the pitch circle due to the thickness of the material, which may cause the linear speed of the bottom roller below the material and the upper traction roller to be inconsistent. Alternatively, the elasticity of the rubber roller can be used to adjust the pressure above the traction roller to make the gears mesh smoothly. However, this method is only suitable for thin materials, and as the thickness of the material increases, the diameter change caused by the compression of the rubber roller will cause the linear speed of the rubber roller to be slightly slower than the material speed. For thicker materials, the upper and lower gears cannot mesh after disengagement. The movement power after the rubber roller is pressed comes from the material, which is a passive rotation. It cannot ensure that the conveying speed of the top and bottom layers of thicker multi-layer materials is the same, and it cannot pull the multi-layer materials synchronously. There are still certain limitations.

[0004] Therefore, there is a need for a traction roller synchronous knife seat based on automatic gap compensation to solve the above problems. Utility Model Content

[0005] The utility model provides a traction roller synchronous knife seat based on automatic gap compensation. Through the flexible swing of the automatic gap compensation device, the radial gap between the traction rubber roller and the traction bottom roller is automatically compensated, thereby avoiding the occurrence of asynchronous rotation of the traction rubber roller and the traction bottom roller, and realizing synchronous transportation of multi-layer materials with different thicknesses.

[0006] The technical solution of the utility model is achieved in this way:

[0007] The traction roller synchronous knife seat based on automatic gap compensation includes a traction mounting seat, a traction bottom roller and a traction rubber roller are installed on the traction mounting seat, the traction bottom roller is connected to a power device, the traction mounting seat is installed with a mounting frame, a first rotating shaft and a second rotating shaft arranged horizontally are rotatably installed on the mounting frame, the first rotating shaft and the second rotating shaft are connected by a gear pair, the first rotating shaft is connected to the traction bottom roller by transmission, and also includes an automatic gap compensation device, the automatic gap compensation device includes two connecting plates, an intermediate plate is arranged between the two connecting plates, the intermediate plate is arranged parallel to the two connecting plates, each of the connecting plates is hinged to the intermediate plate through a rocker arm assembly, one of the connecting plates is fixedly connected to the second rotating shaft, and the other connecting plate is connected to the traction rubber roller by transmission, and each of the rocker arm assemblies includes at least two rockers, one end of each rocker arm is hinged to the corresponding connecting plate, and the other end of each rocker arm is hinged to the intermediate plate.

[0008] As a preferred technical solution, there are three rocker arms, and the three rocker arms are evenly distributed.

[0009] As a preferred technical solution, the gear pair includes a first transmission gear and a second transmission gear, the first transmission gear is arranged on the first rotating shaft, the second transmission gear is arranged on the second rotating shaft, and the first transmission gear is meshed with the second transmission gear.

[0010] As a preferred technical solution, the traction rubber roller is slidably mounted on the traction mounting seat along the vertical direction through a pressure knife assembly.

[0011] As a preferred technical solution, the knife pressing assembly includes a horizontally arranged lower mounting plate, the traction rubber roller is rotatably mounted on the bottom of the lower mounting plate through a pair of bearing boxes, an upper mounting plate is horizontally arranged above the lower mounting plate, the upper mounting plate is installed on the top of the traction mounting seat, an adjusting screw is vertically arranged on the upper mounting plate, the lower end of the adjusting screw passes through the upper mounting plate and is connected to the lower mounting plate, a pair of guide columns and a pair of guide shafts are symmetrically arranged between the upper mounting plate and the lower mounting plate, each of the guide shafts is sleeved with a return spring, and each of the return springs is arranged between the upper mounting plate and the lower mounting plate.

[0012] By adopting the above technical solution, the beneficial effects of the utility model are as follows:

[0013] Since the traction roller synchronous knife holder based on automatic gap compensation includes an automatic gap compensation device, when using the knife holder to pull materials, the adjusting screw is rotated to move the lower installation up in the vertical direction, the material is placed between the traction bottom roller and the traction rubber roller, and the adjusting screw is rotated in the opposite direction, the material is pressed between the traction bottom roller and the traction rubber roller, and the drive shaft rotates under the rotation of the driving motor, the fourth gear on the drive shaft is meshed with the third gear, the traction bottom roller drives the first rotating shaft to rotate, the first gear on the first rotating shaft is meshed with the second gear on the second rotating shaft, thereby driving the second rotating shaft to rotate, and the second rotating shaft rotates through the gap The automatic gap compensation device drives the traction rubber roller to rotate, thereby completing the traction of thicker multi-layer materials. Compared with the traditional traction knife seat adopts the gear meshing transmission mode, the traction rubber roller of the present invention automatically compensates the radial gap between the two connecting plates through the flexible swing of the rocker arm during the movement of the traction rubber roller in the vertical direction, so that the rotation speed of the traction rubber roller and the traction bottom roller of the present invention is the same when traction thicker multi-layer materials. Because the traction rubber roller drives the top layer of the multi-layer material forward, and the traction bottom roller drives the bottom layer of the multi-layer material forward, the synchronous conveying of multi-layer materials with different thicknesses is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the automatic gap compensation device;

[0017] Figure 3 It is a structural schematic diagram of the rocker arm;

[0018] Figure 4 This is a reference diagram of the meshing state of the gears when the traditional traction knife holder is traction of thin materials;

[0019] Figure 5 This is a reference diagram of the gear meshing state when the traditional traction knife holder is traction thick materials.

[0020] Wherein: 1. traction mounting seat; 2. traction bottom roller; 3. traction rubber roller; 4. mounting frame; 5. first rotating shaft; 6. second rotating shaft; 7. automatic gap compensation device; 8. connecting plate; 9. intermediate plate; 10. rocker arm; 11. first transmission gear; 12. second transmission gear; 13. lower mounting plate; 14. bearing box; 15. upper mounting plate; 16. adjusting screw; 17. guide column; 18. guide shaft; 19. reset spring; 20. driving motor; 21. third transmission gear; 22. fourth transmission gear. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figure 1-Figure 3 As shown together, a traction roller synchronous knife seat based on automatic gap compensation includes a traction mounting seat 1, on which a traction bottom roller 2 and a traction rubber roller 3 are installed, the traction bottom roller 2 is connected to a power device, and the traction mounting seat 1 is installed with a mounting frame 4, on which a horizontally arranged first rotating shaft 5 and a second rotating shaft 6 are rotatably installed, the first rotating shaft 5 and the second rotating shaft 6 are connected by a gear pair, the first rotating shaft 5 is connected to the traction bottom roller 2 by transmission, and also includes an automatic gap compensation device 7, the automatic gap compensation device 7 includes two connecting plates 8, an intermediate plate 9 is arranged between the two connecting plates 8, the intermediate plate 9 is arranged parallel to the two connecting plates 8, each connecting plate 8 is hinged to the intermediate plate 9 through a rocker arm assembly, wherein one connecting plate 8 is fixedly connected to the second rotating shaft 6, and the other connecting plate 8 is connected to the traction rubber roller 3 by transmission, and each rocker arm assembly includes at least two rocker arms 10, one end of each rocker arm 10 is hinged to the corresponding connecting plate 8, and the other end of each rocker arm 10 is hinged to the intermediate plate 9.

[0023] There are three rocker arms 10 , and the three rocker arms 10 are evenly distributed.

[0024] Furthermore, the gear pair includes a first transmission gear 11 and a second transmission gear 12 . The first transmission gear 11 is disposed on the first rotating shaft 5 , and the second transmission gear 12 is disposed on the second rotating shaft 6 . The first transmission gear 11 is meshed with the second transmission gear 12 .

[0025] Furthermore, the traction rubber roller 3 is slidably mounted on the traction mounting seat 1 along the vertical direction through a pressure knife assembly.

[0026] Secondly, the knife pressing assembly includes a horizontally arranged lower mounting plate 13, the traction rubber roller 3 is rotatably mounted on the bottom of the lower mounting plate 13 through a pair of bearing boxes 14, an upper mounting plate 15 is horizontally arranged above the lower mounting plate 13, the upper mounting plate 15 is installed on the top of the traction mounting seat 1, and an adjusting screw 16 is vertically arranged on the upper mounting plate 15. The lower end of the adjusting screw 16 passes through the upper mounting plate 15 and is connected to the lower mounting plate 13. A pair of guide columns 17 and a pair of guide shafts 18 are symmetrically arranged between the upper mounting plate 15 and the lower mounting plate 13. A return spring 19 is sleeved on each guide shaft 18, and each return spring 19 is arranged between the upper mounting plate 15 and the lower mounting plate 13.

[0027] The power device includes a drive motor 20 installed on the traction mounting seat 1, the drive motor 20 is connected to the transmission shaft, a third transmission gear 21 is provided on the transmission shaft, a fourth transmission gear 22 is provided on the traction bottom roller 2, and the third transmission gear 21 is meshed with the fourth transmission gear 22.

[0028] like Figure 4 As shown, when the traditional traction knife seat is traction of thinner multi-layer materials, the two gears are meshed at position A, and the distance from position A to the center of the two gears is equal. According to the linear speed calculation formula used to determine the speed of rotation of an object, that is, the linear speed is equal to the product of the angular speed and the rotation radius, the traditional traction knife seat can achieve synchronous traction of multiple layers of thinner materials. However, if Figure 5 As shown, when the traditional traction knife seat is traction of thicker multi-layer materials, due to the increase in material thickness, it is necessary to increase the gap between the traction rollers to ensure the smooth passage of the thicker multi-layer materials, which changes the meshing position of the two gears, and then causes the two gears to mesh at position B. The distance from position B to the center of the two gears is not equal, resulting in inconsistent rotation speeds of the two traction rollers. Therefore, the traditional traction knife seat cannot achieve synchronous traction of multiple layers of thinner materials.

[0029] In summary, the utility model automatically compensates for the radial gap between the traction rubber roller and the traction bottom roller through the flexible swing of the gap automatic compensation device, avoids the occurrence of asynchronous rotation of the traction rubber roller and the traction bottom roller, and realizes synchronous transportation of multi-layer materials of different thicknesses.

[0030] 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 principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The traction roller synchronous knife holder based on automatic gap compensation is characterized by: The traction mounting seat is provided with a traction bottom roller and a traction rubber roller, the traction bottom roller is connected with a power device, the traction mounting seat is provided with a mounting frame, a first rotating shaft and a second rotating shaft arranged horizontally are rotatably mounted on the mounting frame, the first rotating shaft and the second rotating shaft are connected through a gear pair, the first rotating shaft is connected to the traction bottom roller through transmission, and an automatic gap compensation device is also provided, the automatic gap compensation device comprises two connecting plates, an intermediate plate is arranged between the two connecting plates, the intermediate plate is arranged parallel to the two connecting plates, each of the connecting plates is hinged to the intermediate plate through a rocker arm assembly, one of the connecting plates is fixedly connected to the second rotating shaft, and the other connecting plate is connected to the traction rubber roller through transmission, and each of the rocker arm assemblies comprises at least two rocker arms, one end of each rocker arm is hinged to the corresponding connecting plate, and the other end of each rocker arm is hinged to the intermediate plate.

2. The traction roller synchronous knife holder based on automatic gap compensation according to claim 1 is characterized in that: There are three rocker arms, and the three rocker arms are evenly distributed.

3. The traction roller synchronous knife holder based on automatic gap compensation according to claim 1 is characterized in that: The gear pair includes a first transmission gear and a second transmission gear, the first transmission gear is arranged on the first rotating shaft, the second transmission gear is arranged on the second rotating shaft, and the first transmission gear is meshed with the second transmission gear.

4. The traction roller synchronous knife holder based on automatic gap compensation according to claim 1 is characterized in that: The traction rubber roller is slidably mounted on the traction mounting seat along a vertical direction through a pressure knife assembly.

5. The traction roller synchronous knife holder based on automatic gap compensation according to claim 4 is characterized in that: The knife pressing assembly includes a horizontally arranged lower mounting plate, the traction rubber roller is rotatably mounted on the bottom of the lower mounting plate through a pair of bearing boxes, an upper mounting plate is horizontally arranged above the lower mounting plate, the upper mounting plate is mounted on the top of the traction mounting seat, an adjusting screw is vertically arranged on the upper mounting plate, the lower end of the adjusting screw passes through the upper mounting plate and is connected to the lower mounting plate, a pair of guide columns and a pair of guide shafts are symmetrically arranged between the upper mounting plate and the lower mounting plate, each of the guide shafts is sleeved with a return spring, and each of the return springs is arranged between the upper mounting plate and the lower mounting plate.

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