Tray conveyor

Abstract

The utility model relates to the technical field of conveyors, in particular to a tray conveyor which comprises two supporting cross rods which are symmetrically arranged in parallel, each supporting cross rod is provided with a supporting shaft perpendicular to a body of the supporting cross rod, a first rotating wheel is rotationally arranged on each supporting shaft, and the tray conveyor further comprises a rotating shaft penetrating through the two supporting cross rods. Two second rotating wheels are arranged on the portion, between the two supporting transverse rods, of the rotating shaft in a spaced mode, each second rotating wheel is provided with one first rotating wheel corresponding to the second rotating wheel, two annular conveying belts are further included, and the inner side of each annular conveying belt is provided with a positioning protruding strip surrounding the annular conveying belt in a protruding mode; annular grooves matched with the positioning raised lines in width are concavely formed in the circumferential side surfaces of each first rotating wheel and each second rotating wheel; each annular conveying belt is arranged on the corresponding first rotating wheel and the corresponding second rotating wheel in a sleeving mode, and the positioning protruding strips on the inner sides of the annular conveying belts are clamped into the annular grooves formed in the first rotating wheels and the annular grooves formed in the second rotating wheels. The conveying device further comprises a driving assembly used for driving the rotating shafts to rotate.

Description

Technical Field

[0001] The present application relates to the technical field of conveyors, and more particularly, to a pallet conveyor. Background Art

[0002] Conveyors have a long history. The high drum carts and water-lifting tipping carts in ancient China are the prototypes of modern bucket elevators and scraper conveyors. Conveyors are material handling machinery that continuously transports materials on a certain route, also known as continuous conveyors. Conveyors can be horizontal or inclined conveyors, and can also form spatial conveying routes. Conveyor routes are generally fixed. Conveyors have large conveying capacity and long transport distances. They can also complete several process operations simultaneously during the conveying process, so they are widely used.

[0003] Aluminum profile-formed pallets are generally rectangular structures used as baking trays, freezing trays, etc. In the automatic production of aluminum profile-formed pallets, the pallets need to be polished or punched after forming, so a conveyor is needed to transport the pallets to various processing stations after forming, and the position and swing direction of the pallets need to be relatively fixed during the transportation of the pallets. In the related art, the conveyor for conveying pallets generally includes a frame, an active roller and a driven roller rotatably set on the frame, a conveyor belt sleeved on the active roller and the transmission roller, and a driving member that drives the active roller to rotate and drive the conveyor belt. The pallet is transported by positioning it on the belt. This structure is easy to deviate during the transmission process of the conveyor belt, causing the pallet to be offset, and when the pallet is placed, it is easy to be affected by foreign objects on the belt, causing its swing direction to be inaccurate. Utility Model Content

[0004] In order to solve the problems in the related art that the conveyor belt is prone to deviation during transmission, causing the pallet to be offset, and the pallet is easily affected by foreign objects on the belt when placed, causing its swing direction to be inaccurate, the present application provides a pallet conveyor.

[0005] A pallet conveyor, characterized in that:

[0006] It comprises two supporting cross bars, the two supporting cross bars are arranged in parallel and symmetrically, a connecting rod is arranged between the two supporting cross bars to fix the two supporting cross bars, the spacing between the two supporting cross bars matches the width of the pallet, the ends of the two supporting cross bars in the same direction are both provided with supporting shafts perpendicular to the bodies thereof, the two supporting shafts are both extended between the two supporting cross bars, and the part of each supporting shaft between the two supporting cross bars is rotatably provided with a first rotating wheel;

[0007] A rotating shaft, the rotating shaft passes through the ends of the two supporting cross bars away from the supporting shaft and is rotatably connected to the two supporting cross bars, and two second rotating wheels are arranged at intervals between the two supporting cross bars on the rotating shaft, and each of the second rotating wheels is aligned with one of the first rotating wheels;

[0008] Two endless conveyor belts, each of which has a positioning convex strip protruding on its inner side, each of which has an annular groove matching the width of the positioning convex strip on its circumferential side, each of which has a first rotating wheel and a second rotating wheel, each of which is sleeved on a first rotating wheel and a second rotating wheel at opposite positions, and the positioning convex strips on the inner side of the endless conveyor belt are inserted into the annular grooves provided on the first rotating wheel and the second rotating wheel;

[0009] A driving assembly is connected to the rotating shaft to drive the rotating shaft to rotate.

[0010] Preferably, the facing sides of the two supporting cross bars are both provided with smooth surfaces for fitting against the opposite sides of the tray.

[0011] Preferably, the outer sides of the ends of the two supporting cross bars away from the rotating shaft are recessed with a slide groove extending along the length direction of the main body, and each of the supporting cross bars is provided with a runway-shaped hole penetrating the main body at the bottom of the slide groove, and the extension direction of the runway-shaped hole is consistent with the extension direction of the slide groove, and each of the supporting cross bars is provided with a slider slidably arranged in the slide groove, the support shaft is arranged on the slider and passes through the runway-shaped hole, and each of the sliders is provided with a locking assembly for locking and fixing with the supporting cross bar.

[0012] The outer side surface of each of the supporting cross bars is recessed with a receiving groove, and the receiving groove and the sliding groove are arranged at intervals in the length direction of the supporting cross bar. The supporting cross bar is also provided with a through hole on the side wall of the sliding groove to connect with the receiving groove. The locking assembly includes a bolt and two locking nuts. The bolt is arranged on the side wall of the slider and is perpendicular to the slider, and the bolt passes through the through hole into the receiving groove. The two locking nuts are both threadedly connected with the bolts, and one locking nut is located in the sliding groove, and the other locking nut is located in the receiving groove.

[0013] Preferably, the driving assembly includes a mounting plate, a motor, and a belt transmission structure, wherein the mounting plate is fixed on one of the supporting cross bars, and the motor is fixed on the mounting plate and connected to the rotating shaft via the belt transmission structure to drive the rotating shaft to rotate.

[0014] It also includes two support plates, both of which are provided with positioning grooves matching the positioning convex strips, one of the support plates is fixed to the inner side surface of one of the support cross bars and is located between a group of aligned first and second wheels, and the support plate is in contact with the inner side surface of the upper section of the endless conveyor belt supported by the first and second wheels, and the protruding positioning convex strips of the endless conveyor belt are inserted into the recessed positioning grooves of the support plate, the other support plate is fixed to the inner side surface of another of the support cross bars and is located between another group of aligned first and second wheels, and the support plate is in contact with the inner side surface of the upper section of the endless conveyor belt supported by the first and second wheels, and the protruding positioning convex strips of the endless conveyor belt are inserted into the recessed positioning grooves of the support plate.

[0015] The beneficial technical effects of the present application are as follows: two sets of aligned first and second rotating wheels respectively support an endless conveyor belt, and the pallet is placed on the two endless conveyor belts. The driving assembly drives the rotating shaft to rotate and drives the two endless conveyor belts to transmit, thereby conveying the pallet; the spacing between the two supporting cross bars matches the width of the pallet, and when the pallet is placed, the two opposite side surfaces of the pallet are respectively in contact with the inner side surfaces of the two supporting cross bars, and the two supporting cross bars limit the pallet so that the pallet can be swung accurately, and the pallet is always in contact with the supporting cross bars during the conveying process and is not easy to deviate. The annular groove and the positioning convex strip of the endless conveyor belt are used to limit the cooperation, so that the endless conveyor belt is not easy to deviate during the transmission process, further reducing the deviation of the pallet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a pallet conveyor of this embodiment.

[0017] Figure numerals: 1. supporting cross bar; 11. supporting shaft; 12. first rotating wheel; 13. smooth surface; 14. slide groove; 15. racetrack-shaped hole; 16. slider; 17. locking assembly; 171. bolt; 172. locking nut; 18. accommodating groove; 2. connecting rod; 3. rotating shaft; 31. second rotating wheel; 4. endless conveyor belt; 41. positioning convex strip; 5. driving assembly; 51. mounting plate; 52. motor; 53. belt transmission structure; 531. first pulley; 532. second pulley; 533. belt; 6. supporting plate; 61. positioning groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0019] Reference Figure 1 A pallet conveyor comprises two parallel and symmetrically arranged support cross bars 1, a connecting rod 2 is arranged between the two support cross bars 1 to fix the two support cross bars 1, the spacing between the two support cross bars 1 matches the width of the pallet, and the ends of the two support cross bars 1 in the same direction are provided with support shafts 11 perpendicular to their bodies, the two support shafts 11 extend between the two support cross bars 1, and the part of each support shaft 11 between the two support cross bars 1 is rotatably provided with a first rotating wheel 12.

[0020] Reference Figure 1 A pallet conveyor also includes a rotating shaft 3, which passes through the ends of the two supporting cross bars 1 away from the first rotating wheel 12 and is rotatably connected to the two supporting cross bars 1. The rotating shaft 3 is provided with two second rotating wheels 31 at a partial interval between the two supporting cross bars 1, and each second rotating wheel 31 is aligned with a first rotating wheel 12.

[0021] Reference Figure 1 A pallet conveyor also includes two endless conveyor belts 4, each of which is provided with a positioning convex strip 41 surrounding itself, and each first rotating wheel 12 and each second rotating wheel 31 are provided with an annular groove matching the width of the positioning convex strip 41 on the peripheral side surface, each endless conveyor belt 4 is sleeved on a first rotating wheel 12 and a second rotating wheel 31 in relative positions, and the positioning convex strips 41 on the inner side of the endless conveyor belt 4 are inserted into the annular grooves provided on the first rotating wheel 12 and the second rotating wheel 31.

[0022] Reference Figure 1 , a pallet conveyor also includes a driving component 5, which is connected to the rotating shaft 3 to drive the rotating shaft 3 to rotate and drive two annular conveyor belts 4 to transmit synchronously.

[0023] When in use, the pallet is placed on the two circular conveyor belts 4, and the inner sides of the two supporting cross bars 1 are in contact with the opposite sides of the pallet. The swing direction of the pallet is limited so that the pallet swings accurately. The driving component 5 drives the two circular conveyor belts 4 to synchronously drive the pallet from one processing station to another, thereby realizing the transmission of the pallet. During the transmission of the pallet, the two supporting cross bars 1 are always in contact with the side of the pallet to limit the pallet and reduce the deviation of the pallet during movement. During the transmission process, the circular conveyor belt 4 is not easy to deviate through the limited cooperation of the annular grooves recessed in the first rotating wheel 12 and the second rotating wheel 31 and the positioning convex strips 41 convex on the inner side thereof.

[0024] Reference Figure 1 Furthermore, the sides of the two supporting cross bars 1 facing each other are provided with smooth surfaces 13, and the contact position between the two supporting cross bars 1 and the pallet is at the smooth surface 13, which is conducive to reducing friction and making the pallet transmission more stable.

[0025] Reference Figure 1 Furthermore, the outer sides of the ends of the two supporting cross bars 1 away from the rotating shaft 3 are recessed with a slide groove 14 extending along the length direction of the main body thereof, and each supporting cross bar 1 is provided with a runway-shaped hole 15 penetrating the main body thereof at the bottom of the slide groove 14, and the extension direction of the runway-shaped hole 15 is consistent with the extension direction of the slide groove 14, and each supporting cross bar 1 is slidably provided with a slider 16 in the slide groove 14, and the slider 16 can slide back and forth along the length direction of the slide groove 14, and the support shaft 11 is provided on the slider 16 and passes through the runway-shaped hole 15, and the sliding of the slider 16 drives the support shaft 11 to move, and the runway-shaped hole 15 avoids the support shaft 11, and each slider 16 is provided with a locking assembly 17 for locking or releasing the slider 16 and the supporting cross bar 1.

[0026] Through the structural setting of the slider 16 and the slide groove 14, when installing the endless conveyor belt 4, first slide the two sliders 16 in the direction close to the rotating shaft 3, so that the first rotating wheel 12 moves in the direction close to the second rotating wheel 31, and the distance between the first rotating wheel 12 and the second rotating wheel 31 is smaller than the inner width of the endless conveyor belt 4. The endless conveyor belt 4 is more convenient to be sleeved on the first rotating wheel 12 and the second rotating wheel 31. After the endless conveyor belt 4 is sleeved on the first rotating wheel 12 and the second rotating wheel 31, slide the slider 16 in the direction away from the rotating shaft 3 so that the first rotating wheel 12 slides in the direction away from the second rotating wheel 31 to tighten the endless conveyor belt 4, and lock and fix the slider 16 and the supporting cross bar 1 through the locking assembly 17 so that the endless conveyor belt 4 is not easy to loosen during transmission.

[0027] Reference Figure 1 The locking assembly 17 includes a bolt 171 and two locking nuts 172. The outer side surface of each supporting cross bar 1 is concavely provided with a receiving groove 18. The receiving groove 18 and the slide groove 14 are arranged at intervals in the length direction of the supporting cross bar 1. The supporting cross bar 1 is provided with a through hole on the side wall of the slide groove 14, and the slide groove 14 and the receiving groove 18 are connected through the through hole. The bolt 171 is arranged on the side wall of the slider 16 and is perpendicular to the slider 16, and the bolt 171 passes through the through hole into the receiving groove 18. The two locking nuts 172 are both The bolt 171 is threadedly connected, and one locking nut 172 is located in the slide groove 14, and the other locking nut 172 is located in the receiving groove 18. The two locking nuts 172 clamp the support cross bar 1 between the slide groove 14 and the receiving groove 18 to partially limit the movement of the slider 16 to achieve locking and fixing of the slider 16 and the support cross bar 1. By twisting the two locking nuts 172 to move the two locking nuts 172 away from each other, the bolt 171 has space to move, thereby releasing the fixation between the slider 16 and the support cross bar 1.

[0028] Reference Figure 1Furthermore, the driving assembly 5 includes a mounting plate 51, a motor 52, and a belt transmission structure 53. The mounting plate 51 is fixed on a supporting cross bar 1. The motor 52 is connected to the rotating shaft 3 through the belt transmission structure 53. The belt transmission structure 53 includes a first pulley 531 arranged on the rotating shaft 3 and a second pulley 532 arranged on the driving shaft of the motor 52, and a belt 533 sleeved on the first pulley 531 and the second pulley 532. The motor 52 drives the belt 533 to drive the rotating shaft 3 to rotate to realize the synchronous transmission of the two annular conveyor belts 4.

[0029] Reference Figure 1 Furthermore, a pallet conveyor also includes two supporting plates 6, both supporting plates 6 are concavely provided with positioning grooves 61 matching the positioning convex strips 41, one supporting plate 6 is fixed to the inner side surface of a supporting cross bar 1 and is located between a set of aligned first rotating wheels 12 and the second rotating wheels 31, and the supporting plate 6 is in contact with the inner side surface of the upper section of the endless conveyor belt 4 supported by the first rotating wheels 12 and the second rotating wheels 31, and the positioning convex strips 41 convexly provided on the endless conveyor belt 4 are inserted into the positioning grooves 61 concavely provided on the supporting plate 6, and the other supporting plate 6 is fixed to the inner side surface of another supporting cross bar 1 and is located between another set of aligned first rotating wheels 12 The supporting plate 6 is between the first rotating wheel 12 and the second rotating wheel 31, and the supporting plate 6 is in contact with the inner side surface of the upper section of the endless conveyor belt 4 supported by the first rotating wheel 12 and the second rotating wheel 31, and the protruding positioning rib 41 of the endless conveyor belt 4 is inserted into the recessed positioning groove 61 of the supporting plate 6. The endless conveyor belt 4 is supported by the supporting plate 6, and when the pallet is placed on the endless conveyor belt 4, the endless conveyor belt 4 provides better support for the pallet, making it less likely for the pallet to shake during transportation, further reducing the deviation of the pallet, and the protruding positioning rib 41 of the endless conveyor belt 4 is inserted into the recessed positioning groove 61 of the supporting plate 6, further limiting the deviation of the endless conveyor belt 4 during transmission.

[0030] Although the embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pallet conveyor, characterized in that: It comprises two supporting cross bars, the two supporting cross bars are arranged in parallel and symmetrically, a connecting rod is arranged between the two supporting cross bars to fix the two supporting cross bars, the spacing between the two supporting cross bars matches the width of the pallet, the ends of the two supporting cross bars in the same direction are both provided with supporting shafts perpendicular to the bodies thereof, the two supporting shafts are both extended between the two supporting cross bars, and the part of each supporting shaft between the two supporting cross bars is rotatably provided with a first rotating wheel; A rotating shaft, the rotating shaft passes through the ends of the two supporting cross bars away from the supporting shaft and is rotatably connected to the two supporting cross bars, and two second rotating wheels are arranged at intervals between the two supporting cross bars on the rotating shaft, and each of the second rotating wheels is aligned with one of the first rotating wheels; Two endless conveyor belts, each of which has a positioning convex strip protruding on its inner side, each of which has an annular groove matching the width of the positioning convex strip on its circumferential side, each of which has a first rotating wheel and a second rotating wheel, each of which is sleeved on a first rotating wheel and a second rotating wheel at opposite positions, and the positioning convex strips on the inner side of the endless conveyor belt are inserted into the annular grooves provided on the first rotating wheel and the second rotating wheel; A driving assembly is connected to the rotating shaft to drive the rotating shaft to rotate.

2. A pallet conveyor according to claim 1, characterized in that: The facing sides of the two support cross bars are both provided with smooth surfaces for fitting the two opposite side surfaces of the tray.

3. A pallet conveyor according to claim 1, characterized in that: The outer sides of the ends of the two supporting cross bars away from the rotating shaft are recessed with sliding grooves extending along the length direction of the main body, and each supporting cross bar is provided with a runway-shaped hole penetrating the main body at the bottom of the sliding groove. The extension direction of the runway-shaped hole is consistent with the extension direction of the sliding groove. Each supporting cross bar is slidably provided with a slider in the sliding groove, and the slider can slide back and forth along the length direction of the sliding groove. The support shaft is arranged on the slider and passes through the runway-shaped hole. The sliding of the slider drives the support shaft to move, and the runway-shaped hole avoids the support shaft. A locking assembly is provided on each slider for locking or releasing the slider and the supporting cross bar.

4. A pallet conveyor according to claim 3, characterized in that: The outer side surface of each of the supporting cross bars is recessed with a receiving groove, and the receiving groove and the sliding groove are arranged at intervals in the length direction of the supporting cross bar. The supporting cross bar is also provided with a through hole on the side wall of the sliding groove to connect with the receiving groove. The locking assembly includes a bolt and two locking nuts. The bolt is arranged on the side wall of the slider and is perpendicular to the slider, and the bolt passes through the through hole into the receiving groove. The two locking nuts are both threadedly connected with the bolts, and one locking nut is located in the sliding groove, and the other locking nut is located in the receiving groove.

5. A pallet conveyor according to claim 1, characterized in that: The driving assembly includes a mounting plate, a motor, and a belt transmission structure. The mounting plate is fixed on one of the supporting cross bars. The motor is fixed on the mounting plate and connected to the rotating shaft through the belt transmission structure to drive the rotating shaft to rotate.

6. A pallet conveyor according to claim 1, characterized in that: It also includes two support plates, both of which are provided with positioning grooves matching the positioning convex strips, one of the support plates is fixed to the inner side surface of one of the support cross bars and is located between a group of aligned first and second wheels, and the support plate is in contact with the inner side surface of the upper section of the endless conveyor belt supported by the first and second wheels, and the protruding positioning convex strips of the endless conveyor belt are inserted into the recessed positioning grooves of the support plate, the other support plate is fixed to the inner side surface of another of the support cross bars and is located between another group of aligned first and second wheels, and the support plate is in contact with the inner side surface of the upper section of the endless conveyor belt supported by the first and second wheels, and the protruding positioning convex strips of the endless conveyor belt are inserted into the recessed positioning grooves of the support plate.

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