Adjustable spherical workpiece conveying device

Abstract

The invention relates to an adjustable spherical workpiece conveying device, and belongs to the field of galvanizing production lines, the adjustable spherical workpiece conveying device comprises a rack, a plurality of conveying rollers are rotatably arranged on the rack, the conveying rollers comprise a plurality of long rollers and a plurality of short rollers, the long rollers are directionally arranged, the arrangement direction is perpendicular to the axial direction of the long rollers, every two short rollers are coaxial, and the long rollers are arranged on the rack. A containing gap is formed between the two coaxial short rollers, the short rollers slide relative to the rack, the sliding direction is parallel to the axial direction of the short rollers, and the adjusting mechanism is used for controlling sliding of the short rollers. The short rollers can slide to change the size of the containing gap, and therefore the conveying device can adapt to smooth descending conveying of spherical workpieces of various sizes.

Description

Technical Field

[0001] The present application relates to the field of galvanizing production lines, and in particular to an adjustable spherical workpiece conveying device. Background Art

[0002] At present, in the automated production line of spherical workpieces, especially after galvanizing, a conveyor track is usually used to convey the workpieces. The conveyor track consists of a roller frame and several conveyor rollers arranged side by side, which are used to support and convey the workpieces; the workpieces are placed on the conveyor rollers, and all the conveyor rollers rotate in the same direction at the same time, and the workpieces above them move in a directional manner under the action of rolling friction.

[0003] When the conveying height needs to be lowered, the conveying track needs to be adjusted: under the premise that the height of the conveying roller remains unchanged, the position where one conveying roller should be set is changed to two coaxial conveying rollers, and a descending gap is formed between the two conveying rollers. Along the direction of the workpiece movement, each descending gap gradually expands. When the spherical workpiece moves to this point, due to the lack of middle support, the spherical workpiece can gradually descend.

[0004] In the above structure, each pair of conveying rollers is independently arranged on the roller frame, and the gap between the two coaxial conveying rollers is fixed, which cannot adapt to spherical workpieces of different sizes, resulting in problems of jamming or premature falling during the conveying process. Summary of the invention

[0005] In order to improve the above-mentioned problem, the present application provides an adjustable spherical workpiece conveying device.

[0006] The adjustable spherical workpiece conveying device provided in the present application adopts the following technical solution: An adjustable spherical workpiece conveying device comprises a frame on which a plurality of conveying rollers are rotatably arranged, the conveying rollers comprising a plurality of long rollers and a plurality of short rollers, the plurality of long rollers being arranged in a direction perpendicular to their own axes, every two short rollers being coaxial, a containing gap being formed between the two coaxial short rollers, the short rollers sliding relative to the frame, the sliding direction being parallel to their own axes, and an adjusting mechanism being further included, the adjusting mechanism being used to control the sliding of the short rollers.

[0007] By adopting the above technical solution, the position of the short rollers is slidably adjusted according to the size of the spherical workpiece, thereby changing the size of the accommodating gap between the short rollers, so that the conveying device can adapt to the descending conveyance of spherical workpieces of various sizes.

[0008] Preferably, the adjustment mechanism includes a propulsion sleeve and a propeller, the propulsion sleeve is slidably connected to the frame, the sliding direction is consistent with the axial direction of the short roller, the short roller coaxially passes through the propulsion sleeve and is coaxially rotatably connected to the propulsion sleeve, the propeller is connected to the frame, and the propeller is used to apply thrust or pulling force to the propulsion sleeve.

[0009] By adopting the above technical solution, the propulsion sleeve can slide but cannot rotate, the propeller drives the propulsion sleeve to slide, and the propulsion sleeve carries the short roller to move synchronously, but does not affect the rotation of the short roller.

[0010] Preferably, the thruster comprises a thrust cylinder and a connecting rod, the piston rod of the thrust cylinder is connected to one end of the connecting rod, and the other end of the connecting rod is connected to the thrust sleeve.

[0011] Preferably, a driving sleeve is also provided on the frame, the driving sleeve is rotatably connected to the frame, the short roller passes through the driving sleeve coaxially, the short roller and the driving sleeve are circumferentially fixed and axially relatively slideable, and also includes a driving assembly for controlling the synchronous rotation of multiple driving sleeves.

[0012] By adopting the above technical solution, the drive sleeve can rotate but not slide, and the drive assembly can rotate each drive sleeve rotatably arranged on the frame, and the drive sleeve drives the short roller to rotate synchronously without affecting the axial sliding of the short roller.

[0013] Preferably, the drive assembly includes a first sprocket, a second sprocket and a drive chain, the first sprocket and the second sprocket are coaxially fixedly connected to the drive sleeve, and the drive chain simultaneously bypasses the first sprockets of two adjacent drive sleeves or the second sprockets of two adjacent drive sleeves.

[0014] By adopting the above technical solution, the chain transmission mechanism of the first sprocket, the second sprocket and the drive chain enables torque transmission between adjacent drive sleeves, and each drive sleeve can rotate synchronously in the same direction.

[0015] Preferably, a synchronization groove is opened on the inner wall of the driving sleeve along its own axial direction, and a synchronization key is connected to the short roller. The length direction of the synchronization key is parallel to the axial direction of the short roller. The synchronization key is located in the synchronization groove and abuts against the groove wall of the synchronization groove.

[0016] By adopting the above technical solution, the synchronization key slides in the synchronization groove, thereby realizing the axial sliding of the short roller in the driving sleeve.

[0017] Preferably, the adjustment mechanism also includes an amplifying component, which includes a primary rack, an amplifying gear set and a secondary rack. The output end of the propeller is fixedly connected to the primary rack, and the propulsion sleeve is fixedly connected to the secondary rack. The amplifying gear set includes an initial gear and an output gear. Both the initial gear and the output gear are rotatably connected to the frame and the initial gear and the output gear are coaxially fixedly connected. The diameter of the output gear is larger than the diameter of the initial gear. The primary rack is meshed with the initial gear, and the output gear is meshed with the secondary rack.

[0018] By adopting the above technical solution, under the action of the amplifying gear set, the moving distance of the propulsion sleeve and the short roller is greater than the moving distance of the output end of the propeller, thereby increasing the adjustable distance of the short roller.

[0019] Preferably, a contact body is provided at one end of the short roller close to the accommodating gap, the contact body abuts against the spherical workpiece, and the contact body and the short roller are elastically and movably connected.

[0020] Preferably, the contact body includes a contact cylinder and a connecting spring, one end of the short roller close to the accommodating gap is coaxially fixedly connected with a matching ball, the contact cylinder is sleeved on the matching ball, the inner wall of the contact cylinder is in close contact with the spherical surface of the matching ball, one end of the connecting spring is connected to the contact cylinder, and the other end is connected to the end face of the short roller.

[0021] By adopting the above technical solution, when the spherical workpiece moves to a certain accommodating gap, the spherical workpiece directly abuts the contact body there, the contact cylinder is instantly subjected to force and swings relative to the short roller through the matching ball, and the connecting spring is either extended or compressed to buffer the force and reduce damage to the short roller.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the arrangement of short rollers and sliding and adjusting mechanisms, the position of the short rollers is adjusted by sliding according to the size of the spherical workpiece, thereby changing the size of the accommodation gap between the short rollers, so that the conveying device can adapt to the descending conveying of spherical workpieces of various sizes; 2. Through the setting of the driving assembly, the driving sleeves on the adjacent short rollers can be rotated synchronously through chain transmission, so that the synchronous operation of all short rollers can be controlled under the condition of limited driving source. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the adjustable spherical workpiece conveying device in the first embodiment of the present application.

[0024] Figure 2 It is a structural diagram used to embody the adjustment mechanism in the second embodiment of the present application.

[0025] Figure 3 It is a structural schematic diagram used to reflect the amplification component and the contact body in the second embodiment of the present application.

[0026] Explanation of the reference numerals: 1. frame; 2. conveying roller; 21. long roller; 22. short roller; 221. matching ball; 222. accommodating gap; 223. synchronization key; 3. adjustment mechanism; 31. propulsion sleeve; 32. propeller; 321. propulsion cylinder; 322. connecting rod; 33. amplification assembly; 331. primary rack; 332. secondary rack; 333. amplification gear set; 3331. initial gear; 3332. output gear; 4. driving sleeve; 41. synchronization groove; 42. driving assembly; 421. first sprocket; 422. second sprocket; 423. driving chain; 43. driving motor; 5. contact body; 51. connecting spring; 52. contact cylinder; 521. connecting part; 522. consumable part. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-3 This application is described in further detail.

[0028] Embodiment 1: The present application embodiment discloses an adjustable spherical workpiece conveying device, such as Figure 1 As shown, it includes a frame 1, on which a plurality of conveying rollers 2 are rotatably arranged, and the conveying rollers 2 are arranged in a directional manner to form a channel for the workpiece to pass through; the conveying rollers 2 include a plurality of long rollers 21 and a plurality of short rollers 22, and all the short rollers 22 are located at one end of the long roller 21 along the workpiece conveying direction, that is, the spherical workpiece will be conveyed from the long roller 21 part to the short roller 22 part. Every two short rollers 22 are coaxial with each other and are located on opposite sides of the channel, respectively, and a receiving gap 222 is formed between the two coaxial short rollers 22, and the short rollers 22 and the frame 1 slide relative to each other, and the sliding direction is parallel to the axis of the short rollers themselves. An adjusting mechanism 3 is provided on the frame 1, and the adjusting mechanism 3 is used to adjust the axial position of the short roller 22, thereby adjusting the width of the receiving gap 222.

[0029] like Figure 1 and 2As shown, the adjustment mechanism 3 includes a propulsion sleeve 31 and a propeller 32, the number of which is consistent with the number of short rollers 22 and the three correspond one to one. The propulsion sleeve 31 is slidably connected to the frame 1, and the sliding direction is consistent with the axial direction of the short roller 22. The short roller 22 coaxially passes through the propulsion sleeve 31 and is coaxially connected to the propulsion sleeve 31. After the two are connected, they cannot move relative to each other in the axial direction. The propeller 32 is installed on the frame 1, and the propeller 32 is used to apply thrust or pull to the propulsion sleeve 31 to drive it to move. In this embodiment, the propeller 32 includes a propulsion cylinder 321 and a connecting rod 322. The piston rod of the propulsion cylinder 321 is connected to one end of the connecting rod 322, and the other end of the connecting rod 322 is connected to the wall of the propulsion sleeve 31. The propulsion direction of the propulsion cylinder 321 is consistent with the axial direction of the propulsion sleeve 31, and the length direction of the connecting rod 322 is perpendicular to the axial direction of the propulsion sleeve 31, so that the piston rod of the propulsion cylinder 321 is extended and retracted to control the axial movement of the propulsion sleeve 31 carrying the short roller 22.

[0030] like Figure 1 and 2 As shown, the frame 1 is also provided with a driving sleeve 4, which is rotatably connected to the frame 1. The number of driving sleeves 4 and short rollers 22 is the same and the two correspond one to one. The driving sleeve 4 is located on the side of the propulsion sleeve 31 away from the accommodating gap 222. The short roller 22 coaxially passes through the driving sleeve 4, and the short roller 22 and the driving sleeve 4 are fixed in the circumferential direction and slide relative to each other in the axial direction: the inner wall of the driving sleeve 4 is provided with a synchronization groove 41 along its own axial direction, and a synchronization key 223 is detachably connected to the short roller 22 by bolts, and the length direction of the synchronization key 223 is parallel to the axial direction of the short roller 22, and the synchronization key 223 is located in the synchronization groove 41 and abuts against the groove wall of the synchronization groove 41.

[0031] like Figure 1 and 2 As shown, the conveying device also includes a driving assembly 42 for controlling the synchronous rotation of each driving sleeve 4, and the driving assembly 42 includes a driving motor 43, a first sprocket 421, a second sprocket 422 and a driving chain 423 (the sawtooth structure of the sprocket and the joint structure of the chain are not shown in the figure), the first sprocket 421 and the second sprocket 422 are coaxially fixedly connected to the outer wall of the driving sleeve 4, and the driving chain 423 simultaneously bypasses the first sprocket 421 of two adjacent driving sleeves 4 or the second sprocket 422 of two adjacent driving sleeves 4. The driving motor 43 is fixedly mounted on the frame 1, and the output shaft of the driving motor 43 is coaxially fixedly connected to the driving sleeve 4 located at the end of the channel. The driving assembly 42 enables the torque to be transmitted between each driving sleeve 4. When the driving motor 43 is started, all driving sleeves 4 and the short rollers 22 rotate synchronously in the same direction.

[0032] Embodiment 2: like Figure 3As shown, the difference from the first embodiment is that the connecting rod 322 is not provided in this embodiment, the adjustment mechanism 3 also includes an amplifying component 33, the amplifying component 33 includes a primary rack 331, an amplifying gear set 333 and a secondary rack 332, the piston rod of the propulsion cylinder 321 and the primary rack 331 are fixedly connected and the length directions of the two are consistent, the secondary rack 332 is fixedly connected to the outer wall of the propulsion sleeve 31 and the length directions of the two are consistent; the amplifying gear set 333 includes an initial gear 3331 and an output gear 3332, the initial gear 3331 and the output gear 3332 are both rotatably connected to the frame 1 and the initial gear 3331 and the output gear 3332 are coaxially fixedly connected, the diameter of the output gear 3332 is larger than the diameter of the initial gear 3331, the primary rack 331 is meshed with the initial gear 3331, and the output gear 3332 is meshed with the secondary rack 332. When the piston rod of the propulsion cylinder 321 is extended and retracted, the initial gear 3331 and the output gear 3332 rotate, thereby driving the propulsion sleeve 31 to move, and the moving stroke of the propulsion sleeve 31 is greater than the moving stroke of the piston rod of the propulsion cylinder 321, thereby increasing the adjustable distance of the short roller 22.

[0033] like Figure 3 As shown, a contact body 5 is provided at one end of the short roller 22 near the accommodation gap 222, and the contact body 5 and the short roller 22 are elastically and movably connected. When the spherical workpiece moves to the short roller 22 part, the lower surface of the spherical workpiece will directly abut against the contact body 5. The contact body 5 includes a contact cylinder 52 and a connecting spring 51. A matching ball 221 is coaxially and fixedly connected to one end of the short roller 22 near the accommodation gap 222. The contact cylinder 52 is sleeved on the matching ball 221. The inner wall of the contact cylinder 52 and the spherical surface of the matching ball 221 are in close contact. One end of the connecting spring 51 is fixedly connected to the end face of the contact cylinder 52 facing the short roller 22, and the other end is fixedly connected to the end face of the short roller 22. The connecting spring 51 and the short roller 22 are coaxial. The contact cylinder 52 includes a connecting portion 521 and a consumable portion 522. The connecting portion 521 is directly connected to the connecting spring 51. The consumable portion 522 is located on the side of the connecting portion 521 away from the connecting spring 51. The connecting portion 521 and the consumable portion 522 are detachably connected by bolts, which pass through the consumable portion 522 and then screw into the connecting portion 521. When the spherical workpiece moves to a certain accommodation gap 222, the spherical workpiece directly abuts against the consumable portion 522 there, and the contact cylinder 52 is instantly subjected to force and swings relative to the short roller 22 through the matching ball 221. The connecting spring 51 is either extended or compressed to buffer the force and reduce damage to the short roller 22.

[0034] The implementation principle of the adjustable spherical workpiece conveying device of the present application is: The position of the short roller 22 is adjusted according to the size of the spherical workpiece, thereby adjusting the width of the accommodating gap 222 of the short roller 22 part, and the width of the accommodating gap 222 gradually expands along the conveying direction of the workpiece. When the spherical workpiece moves to the short roller 22 part, the supporting point of the conveying roller 2 for the spherical workpiece gradually moves away from the center position, and the spherical workpiece can be continuously lowered, achieving the purpose of lowering the height of the workpiece during conveyance.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An adjustable spherical workpiece conveying device, comprising a frame (1), on which a plurality of conveying rollers (2) are rotatably arranged, wherein the conveying rollers (2) comprise a plurality of long rollers (21) and a plurality of short rollers (22), wherein the plurality of long rollers (21) are arranged in a directional manner, the arrangement direction being perpendicular to the axial direction thereof, and every two of the short rollers (22) are coaxial, and an accommodation gap (222) is formed between the two coaxial short rollers (22), characterized in that: The short roller (22) and the frame (1) slide relative to each other, and the sliding direction is parallel to the axis of the frame itself. The frame also includes an adjustment mechanism (3) for controlling the sliding of the short roller (22).

2. The adjustable spherical workpiece conveying device according to claim 1, characterized in that: The adjustment mechanism (3) comprises a propulsion sleeve (31) and a propeller (32); the propulsion sleeve (31) is slidably connected to the frame (1); the sliding direction is consistent with the axial direction of the short roller (22); the short roller (22) coaxially passes through the propulsion sleeve (31) and is coaxially rotatably connected to the propulsion sleeve (31); the propeller (32) is connected to the frame (1); and the propeller (32) is used to apply a thrust or a pull to the propulsion sleeve (31).

3. The adjustable spherical workpiece conveying device according to claim 2, characterized in that: The propeller (32) comprises a propulsion cylinder (321) and a connecting rod (322), wherein a piston rod of the propulsion cylinder (321) is connected to one end of the connecting rod (322), and the other end of the connecting rod (322) is connected to the propulsion sleeve (31).

4. The adjustable spherical workpiece conveying device according to claim 2, characterized in that: The frame (1) is also provided with a driving sleeve (4), the driving sleeve (4) and the frame (1) are rotatably connected, the short roller (22) coaxially passes through the driving sleeve (4), the short roller (22) and the driving sleeve (4) are circumferentially fixed and axially relatively slidable, and also includes a driving assembly (42) for controlling the synchronous rotation of multiple driving sleeves (4).

5. The adjustable spherical workpiece conveying device according to claim 4, characterized in that: The driving assembly (42) comprises a first sprocket (421), a second sprocket (422) and a driving chain (423); the first sprocket (421) and the second sprocket (422) are both coaxially fixedly connected to the driving sleeve (4); and the driving chain (423) simultaneously bypasses the first sprockets (421) of two adjacent driving sleeves (4) or the second sprockets (422) of two adjacent driving sleeves (4).

6. The adjustable spherical workpiece conveying device according to claim 4, characterized in that: The inner wall of the driving sleeve (4) is provided with a synchronization groove (41) along its own axial direction, and the short roller (22) is connected with a synchronization key (223), the length direction of the synchronization key (223) is parallel to the axial direction of the short roller (22), and the synchronization key (223) is located in the synchronization groove (41) and abuts against the groove wall of the synchronization groove (41).

7. The adjustable spherical workpiece conveying device according to claim 2, characterized in that: The regulating mechanism (3) further comprises an amplifying assembly (33), the amplifying assembly (33) comprising a primary rack (331), an amplifying gear set (333) and a secondary rack (332); the output end of the propeller (32) is fixedly connected to the primary rack (331); the propulsion sleeve (31) is fixedly connected to the secondary rack (332); the amplifying gear set (333) comprises an initial gear (3331) and an output gear (3332); the initial gear (3331) and the output gear (3332) are both rotatably connected to the frame (1); the initial gear (3331) and the output gear (3332) are coaxially fixedly connected; the diameter of the output gear (3332) is greater than the diameter of the initial gear (3331); the primary rack (331) and the initial gear (3331) are meshed; the output gear (3332) and the secondary rack (332) are meshed.

8. The adjustable spherical workpiece conveying device according to claim 1, characterized in that: A contact body (5) is provided at one end of the short roller (22) close to the accommodating gap (222), the contact body (5) abuts against the spherical workpiece, and the contact body (5) and the short roller (22) are elastically and movably connected.

9. The adjustable spherical workpiece conveying device according to claim 8, characterized in that: The contact body (5) comprises a contact cylinder (52) and a connecting spring (51); one end of the short roller (22) close to the accommodating gap (222) is coaxially fixedly connected with a matching ball (221); the contact cylinder (52) is sleeved on the matching ball (221); the inner wall of the contact cylinder (52) is in close contact with the spherical surface of the matching ball (221); one end of the connecting spring (51) is connected to the contact cylinder (52), and the other end is connected to the end surface of the short roller (22).

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