CN116639467A - Roller way guiding mechanism and roller way conveying device - Google Patents

Abstract

The application discloses a roller way guide mechanism and a roller way conveying device, wherein the roller way guide mechanism is used for guiding a workpiece to be conveyed and comprises two guide parts which are distributed along the transverse direction, the transverse direction is perpendicular to the conveying direction of the workpiece to be conveyed, the guide parts are provided with at least one guide groove, and at least part of the guide grooves form an included angle with the conveying direction; the roller way guiding mechanism further comprises a transmission part and a driving part, at least part of the transmission part is positioned in the guiding groove, and the driving part is used for driving the transmission part to move along the conveying direction so as to drive the two guiding parts to be mutually close or far away along the transverse direction. The roller way guide mechanism can convey workpieces to be conveyed in various specifications and types.

Description

Roller way guiding mechanism and roller way conveying device

Technical Field

The application relates to the technical field of conveying production lines, in particular to a roller way guide mechanism and a roller way conveying device.

Background

Referring to fig. 1, fig. 1 is a schematic diagram of a roller guide mechanism.

The roller way guiding mechanism in fig. 1 comprises a base 1', wherein the base 1' is provided with a plurality of conveying rollers 4 'arranged along the conveying direction, and the conveying rollers 4' rotate to drive corresponding workpieces to be conveyed to move along the conveying direction. In order to prevent the workpiece to be conveyed from being deviated, a guiding component is arranged, the guiding component comprises an inner guiding component 3 'and an outer guiding component 2' in fig. 1, the inner guiding component 3 'can be contacted with the inner side of the workpiece to be conveyed, the outer guiding component 2' can be contacted with the outer side of the workpiece to be conveyed, and the guiding limit is carried out through the inner guiding component 3 'or the outer guiding component 2', and the guiding component can be selected according to the specific structure of the workpiece to be conveyed.

In this embodiment, the outer guide member 2' and the inner guide member 3' are fixed to the base 1', and only the corresponding kinds of workpieces can be conveyed.

Disclosure of Invention

The application aims to provide a track guide mechanism and a roller way conveying device, which can convey workpieces to be conveyed in various specifications and types.

The roller way guide mechanism is used for guiding a workpiece to be conveyed and comprises two guide parts which are distributed along the transverse direction, wherein the transverse direction is perpendicular to the conveying direction of the workpiece to be conveyed, the guide parts are provided with at least one guide groove, and at least part of the guide groove has an included angle with the conveying direction; the roller way guiding mechanism further comprises a transmission part and a driving part, at least part of the transmission part is positioned in the guiding groove, and the driving part is used for driving the transmission part to move along the conveying direction so as to drive the two guiding parts to be mutually close or far away along the transverse direction.

In a specific embodiment, the guide groove comprises at least two straight groove sections and inclined groove sections which are alternately arranged, the straight groove sections extend along the conveying direction, and the inclined groove sections and the conveying direction have the included angle.

In a specific embodiment, the roller way guiding mechanism comprises a transverse guide rail and/or a longitudinal guide rail, the driving part drives the transmission part to move along the longitudinal guide rail, and the guiding part can move along the transverse guide rail.

In a specific embodiment, the roller way guiding mechanism further comprises a moving part, the driving part drives the moving part to move along the longitudinal guide rail, and the transmission parts are connected to the moving part.

In one specific embodiment, the device further comprises a fixing portion, the transverse guide rail is arranged at the top of the fixing portion, and the longitudinal guide rail is arranged at the bottom of the fixing portion.

In one embodiment, the fixing portion is provided with a channel extending in a longitudinal direction, and the transmission portion passes through the channel and is connected with the moving portion.

In a specific embodiment, two of the guide portions are symmetrically arranged along the conveying direction.

In one specific embodiment, the guide part comprises a guide plate and a guide beam, the guide beam protrudes out of the guide plate in the height direction, and the guide groove is formed in the guide plate.

The application also provides a roller way conveying device, which comprises a plurality of conveying rollers distributed along the conveying direction and the roller way guiding mechanism.

In a specific embodiment, the roller way conveying device comprises two rows of conveying rollers, the two rows of conveying rollers are distributed in the transverse direction, and the guide part of the roller way guide mechanism is positioned between the two rows of conveying rollers.

The roller way guiding mechanism in this application passes through the cooperation of guide way and drive division, can realize that two guide parts are close to each other or keep away from each other in horizontal, and then adjust the interval of two guide parts, and the guide part is for contacting the work piece of waiting to carry in order to carry out the direction, so this interval corresponds to the direction width of waiting to carry the work piece, and the interval is adjusted, correspondingly also can adjust multiple direction width to satisfy the transportation direction requirement of waiting to carry the work piece of multiple specification model, realize the function of the collineation transmission of same roller way multiple work piece, expand roller way conveyor's application scope.

Moreover, the transmission part converts the movement along the longitudinal direction into the movement of the guide part along the transverse direction, so that if the guide part is subjected to the transverse thrust when the transmission part is not driven by the driving part, the thrust can be decomposed if the transmission part is positioned at the inclined part of the guide groove due to the inclined arrangement of the guide groove, and the possibility that the guide part is pushed can be reduced compared with the movement of the guide part directly driven along the transverse direction, so that the position stability of the guide part is improved.

In a specific technical scheme, the guide way is provided with straight groove sections and inclined groove sections which are alternately arranged, when the guide way is adjusted to the corresponding guide width position, the transmission part is positioned on the straight groove sections, and if the guide part is subjected to transverse external force, the groove walls on two sides of the straight groove sections can limit the movement of the guide part, so that the transmission part and the guide part are locked, namely, the roller way guide mechanism can be locked at the positions of all required guide widths, and the position of the roller way guide mechanism is stable.

Drawings

FIG. 1 is a schematic view of a roller guide mechanism of the prior art;

FIG. 2 is a schematic view of a roller conveyor according to an embodiment of the present application;

FIG. 3 is a right side view of the lane conveyor of FIG. 2;

FIG. 4 is a top view of the lane conveyor of FIG. 2;

FIG. 5 is a schematic view of the lane conveyor of FIG. 2 with workpieces to be conveyed;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 4;

FIG. 7 is a schematic view of a guide plate of the guide of FIG. 4;

FIG. 8 is a schematic view showing four position changes of the guide portion of FIG. 4 moving in a lateral direction;

fig. 9 is an enlarged view of the portion B in fig. 7.

The reference numerals in fig. 1-9 are illustrated as follows:

1' -base; 2' -outer guide members; 3' -inner guide member; 4' -conveying rollers;

100-a roller way conveying device;

1-a guide part;

1.1-a guide beam; 1.2-guide plates; 1.2 a-guide slots; 1.21-a first straight trough section; 1.22-a first inclined groove section; 1.23-a second straight trough section; 1.24-a second inclined groove section; 1.25-a third straight trough section; 1.26-a third inclined groove section; 1.27-fourth straight trough sections;

2-a base;

3-a transverse slider;

4-a transverse guide rail;

5-a fixing part;

6-longitudinal guide rails;

7-a driving part;

8-a transmission part; 8.1-driving idler wheels; 8.2-a transmission shaft;

9-a belt;

10-a moving part;

11-a longitudinal slide;

12-conveying rollers;

13-an electric motor;

200-workpiece to be conveyed.

Detailed Description

In order to better understand the aspects of the present application, the present application will be described in further detail with reference to the accompanying drawings and detailed description.

2-5, FIG. 2 is a schematic view of a roller conveyor according to an embodiment of the present application; FIG. 3 is a right side view of the lane conveyor of FIG. 2; FIG. 4 is a top view of the lane conveyor of FIG. 2; fig. 5 is a schematic view of the roller conveyor of fig. 2 with a workpiece to be conveyed.

The roller way conveying device 100 in this embodiment includes a plurality of conveying rollers 12 distributed along a conveying direction, and is further provided with a power component for driving the conveying rollers 12 to rotate, where the power component may be a motor 13 in this embodiment, the conveying rollers 12 are mounted on a transmission shaft, and the motor 13 may drive the transmission shaft to rotate through a belt 9, so as to drive the conveying rollers 12 to rotate. As shown in fig. 4, a row of conveying rollers 12 are respectively arranged at both sides of the conveying direction, and as shown in fig. 5, the workpiece 200 to be conveyed is supported above the roller conveyor 100, specifically, both sides of the workpiece 200 to be conveyed are supported on the conveying rollers 12 at both sides of the roller conveyor 100, so as to be moved in the conveying direction to be conveyed to a target position by the rotation of the conveying rollers 12. The roller conveyor 100 comprises a base 2, and the above-mentioned motor 13, conveyor roller 12, etc. may be mounted directly or indirectly on the base 2.

Continuing to understand with reference to fig. 6, fig. 6 is a cross-sectional view taken along A-A in fig. 4.

The roller conveyor 100 in this embodiment includes a roller guide mechanism including a guide portion 1, where the direction perpendicular to the conveying direction in the horizontal direction is defined as transverse, and the roller guide mechanism includes two guide portions 1 distributed along the transverse direction, where the guide portion 1 is used for guiding and matching with the workpiece 200 to be conveyed, that is, the two guide portions 1 in the transverse direction may contact with the workpiece 200 to be conveyed, so as to limit the position of the workpiece 200 to be conveyed in the transverse direction and prevent the workpiece 200 to be conveyed from shifting in the conveying direction. As can be seen from fig. 4 and 6, in this embodiment, the guide portion 1 has a beam structure extending along the conveying direction, and the workpiece 200 to be conveyed is always guided by the guide portion 1 during conveying.

It should be noted that, the roller way guiding mechanism in this embodiment further includes a transmission portion 8, a driving portion 7, a longitudinal rail 6, and a transverse rail 4, where the longitudinal direction is a direction parallel to the conveying direction, the guiding portion 1 may move along the transverse rail 4, the transmission portion 8 may move along the longitudinal rail 6, and the driving portion 7 is used to drive the transmission portion 8 to move along the longitudinal rail 6. In addition, the guiding part 1 is provided with at least one guiding groove 1.2a, the transmission part 8 can be vertically inserted into the guiding groove 1.2a, that is, at least part of the transmission part 8 is located in the guiding groove 1.2a, vertically, that is, vertically and horizontally, the guiding groove 1.2a can be a through groove structure which is vertically arranged through the guiding part 1, and can also be understood as a through hole structure, the guiding groove 1.2a can also be a groove structure which is provided with a notch on one side facing the transmission part 8, in fig. 6, the guiding groove 1.2a is a through groove structure, the transmission part 8 is arranged below the guiding part 1, and the guiding groove 1.2a can be inserted from bottom to top.

It should be noted that, in this embodiment, the guiding portion 1 includes a guiding beam 1.1 and a guiding plate 1.2, the guiding groove 1.2a is disposed on the guiding plate 1.2, the guiding beam 1.1 protrudes upward from the guiding plate 1.2 in the height direction, the guiding beam 1.1 is used for contacting the workpiece 200 to be conveyed, the plate surface of the guiding plate 1.2 is horizontally disposed, that is, the thickness direction of the guiding plate 1.2 is vertical, in this embodiment, the guiding beam 1.1 is located outside the guiding plate 1.2, and the middle position close to the two guiding portions 1 is inward, otherwise, is outward. As shown in fig. 5, the workpiece 200 to be conveyed has a central passage 200a, and guide beams 1.1 on both sides and inner side walls 2001 on both sides of the central passage 200a of the workpiece 200 to be conveyed are respectively in contact or clearance fit to restrict displacement of the workpiece 200 to be conveyed in the lateral direction, preventing the workpiece 200 to be conveyed from being deviated.

As will be appreciated in connection with fig. 7, fig. 7 is a schematic view of the guide plate 1.2 of the guide part 1 in fig. 4.

In this embodiment, at least part of the guiding groove 1.2a formed in the guiding portion 1 has an included angle α with the conveying direction, where the included angle α is greater than 0 ° and less than 90 °, so that when the driving portion 8 moves along the longitudinal guide rail 6, the driving portion 1 will interfere with the groove wall of the groove section of the guiding groove 1.2a, so as to drive the guiding portion 1 to move along the transverse guide rail 4, that is, the movement of the driving portion 8 along the longitudinal direction is converted into the movement of the guiding portion 1 along the transverse direction, so that when the driving portion 8 is not driven by the driving portion 7, if the guiding portion 1 is subjected to the transverse thrust, due to the inclined arrangement of the guiding groove 1.2a, the thrust is decomposed, compared with the movement of the guiding portion 1 along the transverse direction, the possibility that the guiding portion 1 is pushed can be reduced, so as to improve the position stability of the guiding portion 1. In fig. 7, the guide grooves 1.2a formed in the two guide portions 1 are symmetrically arranged along the longitudinal center line, so that when the transmission portions 8 on both sides move in the same direction in the longitudinal direction, the moving directions of the two guide portions 1 in the transverse direction are opposite, that is, the two guide portions 1 are close to or far from each other in the transverse direction.

Referring again to fig. 8, fig. 8 is a schematic view showing four position changes of the guide portion 1 in fig. 4 moving in the lateral direction.

The view angle of fig. 8 is defined as a first position state, a second position state, a third position state, and a fourth position device from top to bottom in sequence. In the first position, the two guide parts 1 are at a minimum distance in the transverse direction, and the two guide beams 1.1 of the two guide parts 1 have a distance D1 in the transverse direction; on the basis of the first position state, the two guide parts 1 are driven to move in a mutually separated manner in the transverse direction, so that the two guide parts 1 can reach the second position state after moving a certain distance, at the moment, the distance between the two guide parts 1 in the transverse direction is increased, and the distance D2 is reserved between the two guide beams 1.1 of the two guide parts 1 in the transverse direction; on the basis of the second position state, the two guide parts 1 are driven to move in a mutually separated manner in the transverse direction, so that the two guide parts 1 can reach a third position state after moving for a certain distance, at the moment, the distance between the two guide parts 1 in the transverse direction is continuously increased, and the distance D3 is reserved between the two guide beams 1.1 of the two guide parts 1 in the transverse direction; on the basis of the third position state, the two guide parts 1 are driven to move further apart from each other in the transverse direction, so that the fourth position state can be reached after a certain distance of movement, at this time, the distance between the two guide parts 1 further increases in the transverse direction, and the distance D4 is provided between the two guide beams 1.1 of the two guide parts 1 in the transverse direction.

In this way, the roller way guiding mechanism can adjust four guiding width positions, thereby meeting the conveying and guiding requirements of the workpieces 200 to be conveyed of four structural machine types, realizing the function of collinear conveying of multiple workpieces of the same roller way and expanding the application range of the roller way conveying device 100.

The guide part 1 includes a guide beam 1.1 and a guide plate 1.2 which are separately arranged, the guide plate 1.2 is fixedly connected with the guide beam 1.1 in a separated manner, the guide beam 1.1 and the guide plate can be detachably connected through a fastener, and the guide part can be fixed in a welding manner or the like, so that the embodiment is not particularly limited. It can be known that the guiding portion 1 may be of an integral structure, and is disposed separately, so as to facilitate processing, and the guiding beam 1.1 is used for contacting with the workpiece 200 to be conveyed and limiting, and belongs to an easily worn part, after the guiding beam 1.1 is worn, the guiding beam 1.1 can be maintained or replaced independently, and the whole roller way guiding mechanism is not required to be replaced.

In addition, as shown in fig. 6, the roller guide mechanism in this embodiment further includes a transverse slider 3, where the transverse slider 3 is fixed to the guide portion 1, specifically, to the guide plate 1.2, and the guide plate 1.2 and the transverse slider 3 may be screwed or fastened by other fasteners. The transverse sliding block 3 is used for being matched with the transverse guide rail 4, the guide part 1 is in sliding fit with the transverse sliding block 3 and the transverse guide rail 4, sliding is smoother and more reliable, and the transverse sliding block 3 can be integrally formed with the guide part 1. I.e. without the transverse slider 3, the guide plate 1.2 is in direct sliding engagement with the transverse rail 4.

In this embodiment, the roller guide mechanism is further provided with a moving portion 10, the moving portion 10 is in a plate structure in fig. 6, the transmission portion 8 is connected with the moving portion 10, the driving portion 7 drives the moving portion 10 to move, and the moving portion 10 drives the transmission portion 8 to move. As shown in fig. 6, in order to relatively and smoothly drive the guide parts 1 to move, a plurality of guide grooves 1.2a are uniformly distributed in the conveying direction in each guide part 1, and correspondingly, a corresponding number of transmission parts 8 are provided, in this embodiment, three or six transmission parts 8 are provided on each side, and all the transmission parts 8 can be fixedly or limitedly connected to the moving part 10, so that the driving part 7 only drives the moving part 10 to move, and can drive all the transmission parts 8 to move longitudinally at the same time, thereby simplifying the driving connection of the driving part 7 to the plurality of transmission parts 8, or saving the number of driving parts 7, that is, one driving part 7 can realize synchronous driving of the transmission parts 8 in two guide parts 1, and keeping the driving stability. However, it is understood that two moving parts 10 may be provided, that is, one driving part 7 and one moving part 10 may be provided for each guide part 1, or one driving part 7 may be provided for each transmission part 8 without providing the moving parts 10, or the transmission parts 8 may be driven to move by other transmission components, which is not particularly limited in this embodiment.

The driving part 7 in the embodiment is a cylinder, which has the advantages of simple structure and low cost, but the driving part 7 can also have other structures, such as a motor, and the driving part 10 can be driven by a threaded screw structure or the like to directly drive the driving part 8.

As a specific scheme, as shown in fig. 6, the transmission part 8 in this embodiment includes a transmission shaft 8.2 and a transmission roller 8.1, the transmission roller 8.1 is sleeved on the transmission shaft 8.2, and the transmission shaft 8.2 may be inserted into the guide groove 1.2a and pass through the guide groove 1.2a or not pass through the guide groove 1.2a. In detail, if the upward penetration of the guide groove 1.2a affects the support of the workpiece 200 to be conveyed, the guide groove 1.2a may not be penetrated, and if the support of the workpiece 200 to be conveyed is not hindered, the guide groove 1.2a may be penetrated or not penetrated. The transmission roller 8.1 is positioned in the guide groove 1.2a, the transmission roller 8.1 is in rolling contact with the groove wall of the guide groove 1.2a or in clearance fit, the transmission roller 8.1 is allowed to roll in the guide groove 1.2a along the extending direction of the guide groove 1.2a, the transmission roller 8.1 is arranged to be in rolling fit with the guide groove 1.2a, sliding friction force can be reduced, the smoothness of the movement of the transmission part 8 relative to the guide groove 1.2a is improved, and clamping stagnation is avoided.

In fig. 6, the upper end of the transmission shaft 8.2 is provided with a step shoulder, the transmission roller 8.1 is sleeved with the transmission shaft 8.2 and supported on the step shoulder, so that the transmission roller 8.1 can be limited to move downwards, and the upper end of the transmission roller 8.1 is blocked by a bolt and a gasket fixed on the top of the transmission shaft 8.2, so that the transmission roller 8.1 is limited to be separated from the transmission shaft 8.2 upwards. Of course, the drive roller 8.1 can also be connected rotationally to the drive shaft 8.2 by other connection means.

With continued reference to fig. 6, the roller guide mechanism may further include a fixing portion 5, where the fixing portion 5 is in a plate structure in this embodiment, the transverse guide 4 may be mounted on the fixing portion 5, and both ends of the fixing portion 5 may be provided with the transverse guide 4 along the conveying direction, specifically, the transverse guide 4 may be fixed on the fixing portion 5, that is, mounted on the top of the fixing portion 5, specifically, may be connected and fixed to the fixing portion 5 through a fastener, or may be directly integrally formed on the fixing portion 5. The fixing portion 5 is fixed to the base frame of the roller conveyor 100, and the fixing portion 5 thus provided can support the transverse rail 4 relatively stably, and it is understood that the transverse rail 4 may be directly fixed to the frame of the roller conveyor 100 without providing the fixing portion 5. The bottom of the fixing portion 5 in this embodiment is higher than the bottom of the transmission portion 8, the moving portion 10 is located below the fixing portion 5, at this time, a channel extending longitudinally can be hollowed out on the fixing portion 5, the transmission portion 8 can pass through the channel, and the channel avoids the transmission portion 8, so as to allow the transmission portion 8 to move longitudinally, and meanwhile, the transmission portion 8 is also limited transversely. The longitudinal guide rail 6 may be disposed at the bottom of the fixing portion 5, and may be fixed at the bottom of the fixing portion 5 by a fastener, or integrally formed at the bottom of the fixing portion 5, so that the longitudinal guide rail 6 and the transverse guide rail 4 are separately disposed at the upper and lower sides of the fixing portion 5, which is more beneficial to spatial arrangement, the longitudinal guide rail 6 is disposed at the bottom of the fixing portion 5, and the transmission portion 8 may have a certain height, which is also beneficial to transmission.

The roller way guiding mechanism may further be provided with a longitudinal sliding block 11, where the longitudinal sliding block 11 is slidably matched with the longitudinal guide rail 6, and the longitudinal sliding block 11 may be connected with the transmission portion 8 or connected with the moving portion 10, and in this embodiment, the tops of the longitudinal sliding block 11 and the moving portion 10 are fixed. The cooperation of the longitudinal sliding block 11 and the longitudinal guide rail 6 makes the sliding smoother and more reliable, and of course, the longitudinal sliding block 11 may be integrally formed with the moving part 10 or the transmission part 8, i.e. the longitudinal sliding block 11 is not arranged, and the moving part 10 or the transmission part 8 is directly in sliding fit with the longitudinal guide rail 6.

In the above embodiment, the guide grooves 1.2a provided on the two guide portions 1 are symmetrically disposed with respect to the conveying direction, specifically symmetrically disposed with respect to the longitudinal center line of the roller conveying device 100, so that when the driving portion 7 drives the transmission portion 8 to move in the same longitudinal direction, the two guide portions 1 can move in opposite directions in the transverse direction, thereby adjusting the distance in the transverse direction. However, it is known that the guide grooves 1.2a are not limited to be symmetrically arranged, and the guide grooves 1.2a may be arranged in the same direction, and the driving part 7 may respectively drive the guide parts 1 at both sides through different driving components, so that the guide parts 1 at both sides move in the transverse direction; alternatively, the guide portions 1 on both sides may be driven to move in opposite directions by different driving portions 7. In this embodiment, the arrangement mode is simpler, the structure is simpler, the cost is lower, the moving synchronism of the guide parts 1 on two sides is better, and the space adjustment is more controllable.

It should be emphasized that the guide groove 1.2a in this embodiment is not a straight groove, and it can be understood with reference to fig. 9, and fig. 9 is an enlarged view of the portion B in fig. 7.

As can be seen from fig. 9, the guide slot 1.2a comprises four straight slot sections and three inclined slot sections, which from right to left can be defined as a first straight slot section 1.21, a first inclined slot section 1.22, a second straight slot section 1.23, a second inclined slot section 1.24, a third straight slot section 1.25, a third inclined slot section 1.26, a fourth straight slot section 1.27, respectively, the inclination angle of which is the above-mentioned angle α, the extension direction of the four straight slot sections being parallel to the conveying direction, i.e. extending longitudinally. So arranged, when the transmission part 8 is located in the guide groove 1.2a, it can be located in the straight groove section, so that the inclined groove section can act as a lock for the transmission part 8.

As shown in fig. 8 and 9, when the distance between the guide beams 1.1 of the two guide parts 1 is D1, the transmission part 8 is located in the fourth straight groove section 1.27, if the driving part 7 is not driven, if the guide parts 1 are subjected to a transverse external force, the groove walls on two sides of the fourth straight groove section 1.27 can limit the movement of the guide parts 1, so that the transmission part 8 and the guide parts 1 can be locked, the transmission part 8 can be kept in the fourth straight groove section 1.27 from being separated from the current position due to the unexpected external force; under the action of the drive 7, the transmission 8 passes over the third inclined groove section 1.26 into the third straight groove section 1.25, as well as the third straight groove section 1.25 preventing the transmission 8 from rocking to the left or right. It can be seen that, for fig. 9, four straight groove sections are used as four guiding width positions of the roller way guiding mechanism, and have locking effect, and it is known that if more guiding width positions or less than four guiding width positions are to be realized, corresponding straight groove sections and inclined groove sections can be added or reduced, and for conveying the workpieces 200 to be conveyed with various specifications, it is obvious that at least two straight groove sections can be provided to form at least two guiding width positions, and the straight groove sections and the inclined groove sections are alternately arranged.

The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present application and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the application can be made without departing from the principles of the application and these modifications and adaptations are intended to be within the scope of the application as defined in the following claims.

Claims (10)

1. A roller way guiding mechanism for guiding a workpiece (200) to be conveyed, characterized by comprising two guiding parts (1) distributed along a transverse direction, wherein the transverse direction is perpendicular to the conveying direction of the workpiece (200) to be conveyed, the guiding parts (1) are provided with at least one guiding groove (1.2 a), and at least part of the guiding groove (1.2 a) has an included angle with the conveying direction; the roller way guiding mechanism further comprises a transmission part (8) and a driving part (7), at least part of the transmission part (8) is located in the guiding groove (1.2 a), and the driving part (7) is used for driving the transmission part (8) to move along the conveying direction so as to drive the two guiding parts (1) to be close to or far away from each other along the transverse direction.

2. Roller way guiding mechanism according to claim 1, characterized in that the guiding groove (1.2 a) comprises alternately arranged flat groove sections and inclined groove sections, the number of flat groove sections being at least two, the flat groove sections extending in the conveying direction, the inclined groove sections and the conveying direction having the angle.

3. Roller guide mechanism according to claim 1, characterized in that it comprises a transverse rail (4) and/or a longitudinal rail (6), the drive (7) driving the transmission (8) along the longitudinal rail (6), the guide (1) being movable along the transverse rail (4) in a transverse direction.

4. A roller guide mechanism according to claim 3, further comprising a moving part (10), wherein the driving part (7) drives the moving part (10) to move along the longitudinal rail (6), and wherein the transmission parts (8) are connected to the moving part (10).

5. Roller guide mechanism according to claim 4, further comprising a fixing portion (5), wherein the transverse guide rail (4) is arranged at the top of the fixing portion (5), and wherein the longitudinal guide rail (6) is arranged at the bottom of the fixing portion (5).

6. Roller guide mechanism according to claim 5, characterized in that the fixed part (5) is provided with a longitudinally extending channel through which the transmission part (8) passes before being connected to the moving part (10).

7. A roller guide mechanism according to claim 3, characterized in that two of the guide portions (1) are symmetrically arranged along the conveying direction.

8. Roller way guiding mechanism according to any of claims 1-7, characterized in that the guiding part (1) comprises a guiding plate (1.2) and a guiding beam (1.1), the guiding beam (1.1) protrudes in the height direction from the guiding plate (1.2), and the guiding groove (1.2 a) is arranged in the guiding plate (1.2).

9. A roller conveyor device, the roller conveyor device (100) comprising a plurality of conveyor rollers (12) distributed in a conveying direction, characterized by a roller guide mechanism according to any one of claims 1-8.

10. Roller conveyor according to claim 9, characterized in that the roller conveyor (100) comprises two rows of conveyor rollers (12), the conveyor rollers (12) of two rows being distributed in the lateral direction, the guide (1) of the roller guide being located between the conveyor rollers (12) of two rows.