Roller extruding and conveying device for bamboo tubes

Abstract

The roller extruding and conveying device comprises a mounting frame, two first rotating shafts which are symmetrically arranged in the left-right direction are rotationally arranged on the mounting frame, swing arms are arranged on the two first rotating shafts, one end of each swing arm is rotationally connected with the corresponding first rotating shaft, and a second rotating shaft is arranged at the end, away from the corresponding first rotating shaft, of each swing arm; the first rotating shafts are parallel to the second rotating shafts, rollers concentric with the second rotating shafts are fixed to the second rotating shafts, a rotating driving mechanism is arranged on the mounting frame and drives the two first rotating shafts to synchronously and reversely rotate, a transmission structure is arranged between the first rotating shafts and the second rotating shafts, and the first rotating shafts drive the second rotating shafts to rotate through the transmission structure. And self-centering air cylinders are arranged on the sides, away from each other, of the two swing arms, the bottom ends of the two self-centering air cylinders are hinged to the mounting frame, driving shafts of the two self-centering air cylinders are hinged to the swing arms close to the driving shafts correspondingly, and the bamboo tubes with different diameters are clamped in a self-adaptive mode, so that the bamboo tubes are stably conveyed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bamboo tube conveying, and more particularly to a roller extrusion conveying device for bamboo tubes. BACKGROUND

[0002] Roller extrusion conveying is a common material conveying method, which is widely used in industrial production. It conveys materials from one location to another through the rotation and extrusion of the roller, and is suitable for the conveying of bamboo tubes and other long strip materials.

[0003] In related technologies, the adjustment of the roller gap relies on a manual mechanical device (such as a screw rod adjustment), which has a slow adjustment speed and low precision, and cannot adapt to bamboo tubes of different diameters and the same bamboo tube with different diameters in real time. When the diameter difference of the bamboo tube is large, the large gap leads to slipping during conveying, and the small gap causes excessive extrusion, resulting in poor processing consistency. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem of slow adjustment speed and low precision of the adjustment of the roller gap relying on a manual mechanical device in related technologies, the present application provides a roller extrusion conveying device for bamboo tubes.

[0005] A roller extrusion conveying device for bamboo tubes comprises a mounting frame, two first rotating shafts arranged in left and right and symmetrically arranged are rotationally arranged on the mounting frame, a swing arm is arranged on each of the two first rotating shafts, one end of the swing arm is rotationally connected with the first rotating shaft, a second rotating shaft is arranged at the end of each swing arm away from the first rotating shaft, the first rotating shaft is parallel to the second rotating shaft, and a roller concentric with the second rotating shaft is fixed on the second rotating shaft, a rotating drive mechanism is arranged on the mounting frame, the rotating drive mechanism is used to drive the two first rotating shafts to rotate synchronously and reversely, a transmission structure is arranged between the first rotating shaft and the second rotating shaft, the transmission structure is arranged on the swing arm and drives the first rotating shaft to drive the second rotating shaft to rotate synchronously and in the same direction through the transmission structure, a self-centering cylinder is arranged on the side away from each of the two swing arms, and the bottom end of each self-centering cylinder is hingedly connected to the mounting frame, and the drive shaft of each self-centering cylinder is hingedly connected to the swing arm close to the self-centering cylinder.

[0006] Preferably, the rotating drive mechanism comprises a first gear, a second gear, a third gear and a servo motor, the first gear is concentrically fixed on one of the first rotating shafts, the second gear is concentrically fixed on the other second rotating shaft, the first gear is engaged with the second gear, the servo motor is fixed on the mounting frame, and the third gear is fixed on the drive shaft of the servo motor and arranged on the same axis center as the drive shaft, and the third gear is engaged with the first gear or the second gear.

[0007] Preferably, the transmission structure comprises a reversing shaft, a first reversing gear and a second reversing gear arranged at two ends of the reversing shaft respectively, the reversing shaft is rotationally connected with the swing arm and is arranged perpendicularly to the first shaft and the second shaft, the first shaft is concentrically provided with a third reversing gear, the second shaft is concentrically provided with a fourth reversing gear, the first reversing gear is engaged with the third reversing gear, and the second reversing gear is engaged with the fourth reversing gear.

[0008] Preferably, the two swing arms are each provided with a fourth gear at one end close to the first shaft, and the fourth gears are arranged on the same axis as the first shaft, and the two fourth gears are engaged.

[0009] Preferably, the side walls of the two rollers are each provided with a friction stripe.

[0010] The beneficial technical effects of the present application are as follows: the driving shafts of the two self-centering cylinders are synchronously extended or synchronously retracted to drive the two swing arms to synchronously swing towards or away from each other, so that the two rollers synchronously move towards or away from each other, so that when the bamboo cylinder is placed between the two rollers, the two rollers clamp the bamboo cylinder, the two first shafts are synchronously and reversely rotated by the rotation driving mechanism to drive the two second shafts and the two rollers to synchronously and reversely rotate, the bamboo cylinder is driven to move due to the rolling and extrusion of the rollers, the bamboo cylinder moves stably and is not easy to fall off between the two rollers due to the axial pressure applied to the swing arm by the self-centering cylinder and transmitted to the roller, and the self-centering cylinder is internally integrated with elastic elements (such as springs or rubber pads) or pneumatic buffer devices, when an external force acts, the driving shaft absorbs displacement through elastic deformation or air pressure buffering, realizes self-adaptive adjustment, realizes self-adaptive adjustment of the two rollers to always press against the bamboo cylinder and balance the pressure when the diameter of the bamboo cylinder changes, so that the bamboo cylinder is stable and not easy to slip and cause excessive extrusion damage to the bamboo cylinder during the conveying process, compared with the manual mechanical device of the related art for adjusting the gap between the two rollers, the cylinder driving is high in automation degree, fast in response speed, realizes self-adaptive matching, so that the bamboo cylinder conveying speed is faster, and the processing efficiency of the bamboo cylinder is improved. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of a roller extrusion conveying device for a bamboo cylinder.

[0012] Figure 2 It is a schematic diagram of the connection structure of the swing arm, the second shaft, the roller and the transmission structure.

[0013] Signs: 1, mounting frame; 11, mounting bottom plate; 12, upper mounting plate; 13, first connecting column; 14, mounting side strip; 15, connecting block; 16, vertical strip; 17, threaded seat; 2, first rotating shaft; 21, third reversing gear; 3, swing arm; 31, upper arm plate; 32, lower arm plate; 321, bearing seat; 322, fourth gear; 33, second connecting column; 4, second rotating shaft; 41, second reversing gear; 5, roller; 51, friction stripe; 6, rotating drive mechanism; 61, first gear; 62, second gear; 63, third gear; 64, servo motor; 7, transmission structure; 71, reversing rotating shaft; 72, first reversing gear; 73, second reversing gear; 8, self-centering cylinder. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0015] Reference Figure 1A bamboo tube extrusion and conveying device using a roller 5 includes a mounting frame 1. The mounting frame 1 includes a mounting base plate 11, an upper mounting plate 12, and first connecting columns 13. The upper mounting plate 12 and the mounting base plate 11 are arranged vertically and are connected and fixed to each other by the first connecting columns 13. There are multiple first connecting columns 13. Two first rotating shafts 2 are rotatably arranged horizontally and symmetrically on the mounting frame 1. Specifically, the top end of the first rotating shaft 2 is rotatably connected to the upper mounting plate 12, and the bottom end of the first rotating shaft 2 is rotatably connected to the mounting base plate 11. Bearings are provided between the first rotating shaft 2 and the upper mounting plate 12 and the mounting base plate 11 to ensure smooth rotation of the first rotating shaft 2. A swing arm 3 is provided on each of the two first rotating shafts 2, and one end of the swing arm 3 is rotatably connected to the first rotating shaft 2. A bearing is provided between the swing arm 3 and the first rotating shaft 2 to ensure smooth swing of the swing arm 3. Each swing arm 3 has a second rotating shaft 4 at the end furthest from the first rotating shaft 2. The first rotating shaft 2 and the second rotating shaft 4 are parallel. Each second rotating shaft 4 has a concentric roller 5 fixed on it, and the roller 5 is higher than the height of the upper mounting plate 12. The mounting frame 1 is equipped with a rotation drive mechanism 6, which drives the two first rotating shafts 2 to rotate synchronously and in opposite directions. A transmission structure 7 is provided between the first rotating shafts 2 and the second rotating shafts 4. The transmission structure 7 is set on the swing arm 3 and drives the first rotating shafts 2 to rotate in opposite directions. Shaft 2 drives the second rotating shaft 4 to rotate synchronously and in the same direction. The bottom of the mounting base plate 11 is provided with mounting side strips 14 on the side away from the two swing arms 3. The mounting side strips 14 are fixed with connecting blocks 15 on the side away from the two connecting blocks 15. Vertical strips 16 are fixed on the two connecting blocks 15. A self-centering cylinder 8 is hinged to the vertical strip 16. The two self-centering cylinders 8 are arranged symmetrically on the left and right, and the vertical strips 16 are hinged to the bottom end of the self-centering cylinder 8. The drive shaft of the self-centering cylinder 8 is hinged to the swing arm 3 that is close to it.

[0016] Reference Figure 1 Furthermore, both ends of the two mounting side strips 14 are provided with threaded seats 17, and the threaded seats 17 are provided with threaded holes. The threaded seats 17 are threadedly connected to the external fixing bracket through the threaded holes, so that the mounting bracket 1 is fixed.

[0017] Reference Figure 1Further, the rotating driving mechanism 6 comprises a first gear 61, a second gear 62, a third gear 63 and a servo motor 64, the first gear 61 is concentrically fixed on the first rotating shaft 2, the second gear 62 is concentrically fixed on the second rotating shaft 4, the first gear 61 is engaged with the second gear 62, the servo motor 64 is vertically fixed on the bottom of the mounting bottom plate 11, and the mounting bottom plate 11 is provided with a avoiding hole corresponding to the driving shaft position of the servo motor 64 for the driving shaft of the servo motor 64 to extend out of the top surface of the mounting bottom plate 11, the third gear 63 is fixed on the driving shaft of the servo motor 64 and arranged on the same axis with the driving shaft, the third gear 63 is engaged with the second gear 62, the third gear 63 is driven to rotate by the servo motor 64, the second gear 62 is driven to rotate by the third gear 63, the first rotating shaft 2 is driven to rotate by the second gear 62, and the first gear 61 is driven to rotate by the first rotating shaft 2, and the two externally engaged gears rotate in opposite directions to realize the opposite rotation of the two first rotating shafts 2.

[0018] With reference to Figure 1 And Figure 2 Further, the swing arm 3 comprises an upper arm plate 31, a lower arm plate 32 and a second connecting column 33, the upper arm plate 31 and the lower arm plate 32 are arranged in an up-down manner and connected and fixed by the second connecting column 33, the number of the second connecting column 33 is multiple, one end of the upper arm plate 31 and the lower arm plate 32 pointing in the same direction is rotatably connected with the first rotating shaft 2, and bearings are arranged between the two arm plates and the first rotating shaft 2 to make the rotation smooth, the other end of the upper arm plate 31 and the lower arm plate 32 pointing in the same direction is rotatably connected with the second rotating shaft 4, and bearings are arranged between the two arm plates and the second rotating shaft 4 to make the rotation smooth, the second rotating shaft 4 protrudes out of the top end of the upper arm plate 31, the roller 5 is fixed on the part of the second rotating shaft 4 protruding out of the top end of the upper arm plate 31, the transmission structure 7 is fixed between the upper arm plate 31 and the lower arm plate 32, and the driving shaft of the self-centering cylinder 8 is hinged with the second connecting column 33 close to the second rotating shaft 4.

[0019] With reference to Figure 1 And Figure 2Further, the transmission structure 7 comprises a reversing shaft 71 and a first reversing gear 72 and a second reversing gear 73 arranged at two ends of the reversing shaft 71 respectively, the top surface of the lower arm plate 32 is provided with a bearing seat 321, the bearing seat 321 is provided with a bearing, the reversing shaft 71 is arranged in the bearing inner hole and is connected and fixed with the bearing, the reversing shaft 71 is arranged vertically with the first shaft 2 and the second shaft 4, the first shaft 2 is provided with a third reversing gear 21 concentrically, the second shaft 4 is provided with a fourth reversing gear 41 concentrically, the first reversing gear 72 is engaged with the third reversing gear 21, the second reversing gear 73 is engaged with the fourth reversing gear 41, the first shaft 2 is rotated to drive the third reversing gear 21 to rotate, the third reversing gear 21 is rotated to drive the reversing shaft 71 to rotate, the reversing shaft 71 is rotated to drive the second reversing gear 73 to rotate, the second reversing gear 73 is rotated to drive the second shaft 4 to rotate, the direction of the rotation of the second shaft 4 is the same as that of the first shaft 2, the reversing gear engagement realizes the conversion of vertical rotation into horizontal rotation and the conversion of horizontal rotation into vertical rotation, so that the linkage of the first shaft 2 and the second shaft 4 with distance and vertically is realized.

[0020] With reference to Figure 1 and Figure 2 Further, the two lower arm plates 32 of the two swing arms 3 are provided with fourth gears 322 at one end close to the first shaft 2, the fourth gears 322 are arranged on the same axis with the first shaft 2, and the two fourth gears 322 are engaged, due to the poor synchronization of the two self-centering cylinders 8, the linkage of the two engaged fourth gears 322 realizes the increase of the synchronization of the two swing arms 3, so that the swing angles of the two swing arms 3 are equal, and the two rollers 5 can accurately clamp the bamboo cylinder, and the positioning accuracy of the bamboo cylinder is high.

[0021] With reference to Figure 1 and Figure 2 Further, the side walls of the two rollers 5 are provided with friction stripes 51, the friction between the rollers 5 and the bamboo cylinder is high through the friction stripes 51, so that the slipping of the bamboo cylinder during conveying is reduced.

[0022] The implementation principle of the roller 5 extrusion conveying device for bamboo tubes is as follows: the bamboo tube is placed on the upper mounting plate 12, the bamboo tube is supported by the upper mounting plate 12, and the bamboo tube is between the two rollers 5, the synchronous extension of the driving shafts of the two self-centering cylinders 8 drives the two swing arms 3 to swing towards each other, so that the two rollers 5 clamp the bamboo tube, the servo motor 64 drives the third gear 63 to rotate, the rotation of the third gear 63 drives the second gear 62 meshing therewith to rotate, the rotation of the second gear 62 drives the first rotating shaft 2 connected therewith to rotate and drives the first gear 61 meshing therewith to rotate, and the two externally meshing gears rotate in opposite directions, realizing the opposite rotation of the two first rotating shafts 2, the rotation of the first rotating shaft 2 drives the third reversing gear to rotate, the rotation of the third reversing gear drives the reversing shaft 71 to rotate, the rotation of the reversing shaft 71 drives the second reversing gear 73 to rotate, the rotation of the second reversing gear 73 drives the second rotating shaft 4 to rotate, the rotation of the second rotating shaft 4 drives the roller 5 to rotate, and the rotation of the roller 5 is opposite rotation, so that the two rollers 5 roll and extrude the bamboo tube to move and convey the bamboo tube, the bamboo tube is subjected to the axial pressure applied by the self-centering cylinder 8 to the swing arm 3 and transmitted to the roller 5, so that the bamboo tube moves stably and is not easy to fall off between the two rollers 5, and the self-centering cylinder 8 is internally integrated with elastic elements (such as springs or rubber pads) or pneumatic buffer devices, when external force acts, the driving shaft absorbs displacement through elastic deformation or air pressure buffer, realizes self-adaptive adjustment, realizes the diameter change of the bamboo tube, the two rollers 5 can self-adaptively adjust the position to always press against the bamboo tube and be evenly pressed, so that the bamboo tube is stable during conveying and is not easy to slip and cause excessive extrusion damage to the bamboo tube, compared with the related art manual mechanical device adjusting the gap between the two rollers 5, the cylinder drive has high automation degree, fast response speed, and realizes self-adaptive matching, so that the bamboo tube conveying speed is faster, and the processing efficiency of the bamboo tube is facilitated.

[0023] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A roller extrusion conveying device for bamboo culms, characterized by: The mounting frame is provided with two first rotating shafts arranged in left and right sides and symmetrically, two swing arms are arranged on the two first rotating shafts, one end of each swing arm is rotationally connected with the first rotating shaft, a second rotating shaft is arranged at the end of each swing arm away from the first rotating shaft, the first rotating shaft is parallel with the second rotating shaft, a drum concentric with the second rotating shaft is fixed on the second rotating shaft, a rotating driving mechanism is arranged on the mounting frame and is used to drive the two first rotating shafts to synchronously and reversely rotate, a transmission structure is arranged between the first rotating shaft and the second rotating shaft, the transmission structure is arranged on the swing arm and drives the first rotating shaft to drive the second rotating shaft to synchronously and forwardly rotate, a self-centering air cylinder is arranged on the side of each swing arm away from the other swing arm, and the bottom end of each self-centering air cylinder is hingedly connected with the mounting frame, and the driving shaft of each self-centering air cylinder is hingedly connected with the swing arm close to the self-centering air cylinder.

2. The roller extrusion conveying device for bamboo tubes according to claim 1, characterized in that: The rotating driving mechanism comprises a first gear, a second gear, a third gear and a servo motor, the first gear is concentrically fixed on one of the first rotating shafts, the second gear is concentrically fixed on the other second rotating shaft, the first gear is engaged with the second gear, the servo motor is fixed on the mounting frame, the third gear is fixed on the driving shaft of the servo motor and arranged on the same axis with the driving shaft, and the third gear is engaged with the first gear or the second gear.

3. The roller extrusion conveying device for bamboo tubes according to claim 1, characterized in that: The transmission structure comprises a reversing rotating shaft and first and second reversing gears arranged at two ends of the reversing rotating shaft, the reversing rotating shaft is rotationally connected with the swing arm and perpendicularly arranged with the first and second rotating shafts, a third reversing gear is concentrically arranged on the first rotating shaft, a fourth reversing gear is concentrically arranged on the second rotating shaft, the first reversing gear is engaged with the third reversing gear, and the second reversing gear is engaged with the fourth reversing gear.

4. The roller extrusion conveying device for bamboo tubes according to claim 1, characterized in that: The end of each swing arm close to the first rotating shaft is provided with a fourth gear, the fourth gear is arranged on the same axis with the first rotating shaft, and the two fourth gears are engaged.

5. The roller extrusion conveying device for bamboo tubes according to claim 1, characterized in that: The side wall of each drum is provided with a friction stripe.

Images