Head and tail driving mechanism of film base belt tray conveyor

Abstract

The utility model discloses a driving head and tail mechanism of a sheet base belt tray conveyor, which relates to the technical field of conveyors, and comprises two driving modules, two driven modules, two section bars, two sheet base belts, a driving shaft and a motor, the driving modules, the driven modules, the section bars and the sheet base belts are symmetrically arranged, each driving module comprises a head shell, a driving wheel and a head tensioning wheel, the driven module comprises a tail shell, a driven wheel and a tail tensioning wheel, the piece base belt is in transmission connection with the driving wheel, the head tensioning wheel, the driven wheel and the tail tensioning wheel, the outer circle structures of the driving wheel, the head tensioning wheel, the driven wheel and the tail tensioning wheel are the same, the outer circle section of the driving wheel is in an outwards-protruding arc shape, and the outer circle section of the tail tensioning wheel is in an outwards-protruding arc shape. According to the utility model, the excircle of each wheel is arc-shaped, so that the film base belt can be guided to uniformly deform and tightly wrap each wheel, thereby reducing slippage and uneven contact, and improving the transmission stability and efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to conveyor technical field, concretely is a kind of wafer base tray conveyor drive head tail mechanism. BACKGROUND

[0002] Wafer base tray conveyor is a kind of high-efficiency plane high-speed transmission mechanical equipment, is widely used in various production assembly lines, wafer base tray conveyor is mainly composed of wafer base, drive module, driven module, drive shaft, motor and special section bar and other components.

[0003] Among them, the outer circle of multiple wheels arranged in drive module and driven module and transmissionally connected with wafer base is plane, the setting in the process of wafer base operation, due to the viscoelastic properties of the material itself of wafer base and possible elastic deformation, when transmission with plane wheel, there is additional slip due to stress concentration or release. UTILITY MODEL CONTENTS

[0004] The utility model is to provide a kind of wafer base tray conveyor drive head tail mechanism to solve the problems presented in the above background.

[0005] In order to solve the above technical problems, the utility model provides the following technical scheme: a kind of wafer base tray conveyor drive head tail mechanism, including drive module, driven module, section bar, wafer base, drive shaft and motor, the drive module, driven module, section bar, wafer base are two symmetric settings, the drive module includes head casing, drive wheel and head tension wheel, the driven module includes tail casing, driven wheel and tail tension wheel, the wafer base is transmissionally connected with drive wheel, head tension wheel, driven wheel and tail tension wheel respectively, the outer circle structure of drive wheel, head tension wheel, driven wheel and tail tension wheel is same, the outer circle section of drive wheel is all outwardly convex arc setting.

[0006] Further, the outer circle of drive wheel is provided with multiple limiting strips along its radial direction at equal intervals.

[0007] Further, two installation barrels are arranged in head casing and tail casing, two installation barrels in head casing are rotationally connected with drive wheel and head tension wheel by two bearings respectively, the opposite side of two head casings is provided with through hole for drive shaft, the inner wall of two drive wheels is provided with installation hole for interference fit with the end of drive shaft, the drive shaft is transmissionally connected with the execution end of motor, two installation barrels in tail casing are rotationally connected with driven wheel and tail tension wheel by two bearings respectively, the top end of head casing and tail casing is provided with through slot for transmission between drive wheel, driven wheel and wafer base, the wafer base extends into head casing and tail casing through through slot.

[0008] Further, the drive shaft is a hexagonal shaft.

[0009] Further, the outer end of the mounting cylinder is provided with a limiting boss in the circumferential direction, the side wall of the limiting boss abuts against one side wall of the inner ring of the bearing, the outer end of the head tension pulley, the driven pulley and the tail tension pulley are all provided with a first limiting groove in the circumferential direction, the first limiting groove is provided with an inner snap ring whose side wall abuts against the other side wall of the inner ring of the bearing, the inner wall of the head tension pulley, the driven pulley and the tail tension pulley is all provided with a limiting ring whose side wall abuts against one side wall of the outer ring of the bearing, the inner wall of the head tension pulley, the driven pulley and the tail tension pulley is all provided with a second limiting groove in the circumferential direction, the second limiting groove is provided with an outer snap ring whose side wall abuts against the other side wall of the outer ring of the bearing.

[0010] Further, the side of the head shell and the tail shell away from the drive shaft is provided with an opening, and the opening is connected with a sealing cover through a plurality of bolts.

[0011] Further, the top end of the head shell and the tail shell is fixed with a supporting plate through a plurality of bolts.

[0012] The utility model discloses the reached beneficial effects are:

[0013] By setting the outer circle of the driving wheel, the head tension pulley, the driven pulley and the tail tension pulley as the arc that protrudes outward, the sheet base band can be guided to deform along the outer circle naturally, and then the sheet base band is wrapped on the contact surface of the driving wheel, the head tension pulley, the driven pulley and the tail tension pulley respectively, which reduces the unstable transmission caused by uneven contact or slip of the sheet base band, and the wrapping mode also increases the adhesion of the sheet base band to the contact surface of the driving wheel, the head tension pulley, the driven pulley and the tail tension pulley respectively, thereby improving the stability and efficiency of transmission.

[0014] The limiting strip can increase the friction between the driving wheel and the sheet base band, thereby further preventing the slip of the sheet base band during transmission.

[0015] The drive shaft is set as a hexagonal shaft, and compared with the traditional circular shaft transmission, the hexagonal shaft can provide a larger contact area due to the polygonal structure, and the engagement between the hexagonal shaft and the mounting hole is more compact, thereby reducing the relative sliding and friction loss.

[0016] The limiting boss and the inner snap ring limit the two sides of the inner ring of the bearing, and the limiting ring and the outer snap ring limit the two sides of the outer ring of the bearing, which significantly reduces the failure probability caused by the displacement of the bearing, and makes the driving wheel, the head tension pulley, the driven pulley and the tail tension pulley more stable and smooth during operation.

[0017] The setting of the supporting plate effectively avoids the inner wall of the film base band from contacting the top end of the head shell and the tail shell, thereby reducing the abrasion of the film base band, and meanwhile, the U-shaped groove on the supporting plate can limit the film base band, thereby avoiding the sliding of the film base band. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure schematic view of a driving head and tail mechanism of a film base band tray conveyor in the embodiment;

[0019] Figure 2 A sectional view of a driving wheel in the embodiment;

[0020] Figure 3 A partially enlarged sectional view of an outer circle of a driving wheel in the embodiment;

[0021] Figure 4 A Figure 1 A sectional view along the A-A direction;

[0022] Figure 5 A Figure 1 A sectional view along the B-B direction;

[0023] Figure 6 A structure schematic view of a driving module in the embodiment in an exploded state;

[0024] Figure 7 A structure schematic view of a driven module in the embodiment in an exploded state. DETAILED DESCRIPTION

[0025] The utility model will be further described in connection with the drawings.

[0026] As Figure 1 , 2 , 4-7, the utility model discloses a film base band tray conveyor driving head and tail mechanism, include: driving module 1, driven module 2, section bar 3, film base band 4, driving shaft 5 and motor 6, driving module 1, driven module 2, section bar 3, film base band 4 are two symmetrical settings, and driving module 1 includes head shell 11, driving wheel 12 and head tension pulley 13, and driven module 2 includes tail shell 21, driven wheel 22 and tail tension pulley 23, and film base band 4 is respectively connected with driving wheel 12, head tension pulley 13, driven wheel 22 and tail tension pulley 23 transmission, and the outer circle structure of driving wheel 12, head tension pulley 13, driven wheel 22 and tail tension pulley 23 is identical, and the outer circle section of driving wheel 12 is all outward convex arc setting.

[0027] Based on the above structure, as Figure 1 , 2, 4-7, when the conveyor is running, the outer circle of the driving wheel 12, the head tensioning wheel 13, the driven wheel 22 and the tail tensioning wheel 23 are arranged in an outwardly convex arc shape, when the sheet base band 4 is in contact with the surface thereof, the sheet base band 4 can be naturally guided to deform along the outer circle thereof, and further form a wrapping of the sheet base band 4 on the contact surface of the driving wheel 12, the head tensioning wheel 13, the driven wheel 22 and the tail tensioning wheel 23 respectively, thereby reducing the unstable transmission of the sheet base band 4 due to uneven contact or slipping, and the wrapping mode also increases the fit of the sheet base band 4 with the contact surface of the driving wheel 12, the head tensioning wheel 13, the driven wheel 22 and the tail tensioning wheel 23 respectively, thereby improving the stability and efficiency of the transmission.

[0028] Further, as shown in Figure 3 , in order to further avoid the problem of slipping of the sheet base band, a plurality of limiting strips 121 are arranged at equal intervals along the radial direction of the outer circle of the driving wheel 12, the limiting strips 121 can increase the friction between the driving wheel 12 and the sheet base band 4, thereby further preventing the sheet base band 4 from slipping during transmission.

[0029] Further, as shown in Figures 4-7 , two mounting cylinders 111 are arranged in the head shell 11 and the tail shell 21, the two mounting cylinders 111 arranged in the head shell 11 are rotatably connected with the driving wheel 12 and the head tensioning wheel 13 through two bearings respectively, the opposite side of the two head shells 11 is provided with a through hole 112 for the driving shaft 5 to pass through, the inner wall of the two driving wheels 12 is provided with a mounting hole 122 in interference fit with the end of the driving shaft 5, the driving shaft 5 is drivingly connected with the execution end of the motor 6, the two mounting cylinders 111 arranged in the tail shell 21 are rotatably connected with the driven wheel 22 and the tail tensioning wheel 23 through two bearings respectively, the top end of the head shell 11 and the tail shell 21 is respectively provided with a through slot 113 for the driving wheel 12 and the driven wheel 22 to drive the sheet base band 4, and the sheet base band 4 extends into the head shell 11 and the tail shell 21 through the through slot 113.

[0030] Further, as shown in Figure 1 and 5 , the driving shaft 5 is a hexagonal shaft, the hexagonal shaft transmission can provide a larger contact area due to its polygonal structure, and the engagement between the hexagonal shaft and the mounting hole 122 is more closely, thereby reducing the relative sliding and friction loss.

[0031] Further, as shown in Figure 4 , 6As shown in 7, in order to avoid the bearing damage due to excessive movement, the outer end of the mounting cylinder 111 is provided with a limiting boss 114 in the circumferential direction, the side wall of the limiting boss 114 abuts against one side wall of the bearing inner ring, the outer end of the mounting cylinder 111 of the head tensioning wheel 13, the driven wheel 22 and the tail tensioning wheel 23 is provided with a first limiting groove 115 in the circumferential direction, the first limiting groove 115 is provided with an inner snap ring 116 which abuts against the other side wall of the bearing inner ring, the inner wall of the head tensioning wheel 13, the driven wheel 22 and the tail tensioning wheel 23 close to the limiting boss 114 is provided with a limiting ring 117 which abuts against one side wall of the bearing outer ring, the inner wall of the head tensioning wheel 13, the driven wheel 22 and the tail tensioning wheel 23 is provided with a second limiting groove 118 in the circumferential direction, the second limiting groove 118 is provided with an outer snap ring 119 which abuts against the other side wall of the bearing outer ring, the two sides of the bearing inner ring are limited by the limiting boss 114 and the inner snap ring 116, and the two sides of the bearing outer ring are limited by the limiting ring 117 and the outer snap ring 119, so that the failure probability caused by the bearing displacement is significantly reduced, and the driving wheel 12, the head tensioning wheel 13, the driven wheel 22 and the tail tensioning wheel 23 are more stable and smooth during operation.

[0032] Further, as shown in Figure 6 、 7 , the side of the head shell 11 and the tail shell 21 away from the driving shaft 5 is provided with an opening, the opening is connected with a sealing cover 7 through a plurality of bolts, the driving end of the driving shaft 5 penetrates through one of the sealing covers 7 and is in transmission connection with the executing end of the motor 6, and the sealing cover 7 is beneficial to replacement when any one of the driving wheel 12 / the head tensioning wheel 13 / the driven wheel 22 / the tail tensioning wheel 23 / the bearing is damaged.

[0033] Further, as shown in Figure 1 、 5 -7, the top end of the head shell 11 and the tail shell 21 is fixed with a supporting plate 8 through a plurality of bolts, the top end of the supporting plate 8 is provided with a U-shaped groove, the inner wall bottom end of the U-shaped groove is smoothly and horizontally arranged, the inner wall of the sheet base band 4 is attached to the inner wall bottom end of the U-shaped groove, the supporting plate 8 is provided with a through groove in communication with the inner wall of the through groove 113, and the sheet base band 4 extends into the head shell 11 / the tail shell 21 in sequence through the corresponding side through groove and the through groove 113, the setting of the supporting plate 8 effectively avoids the contact between the inner wall of the sheet base band 4 and the top end of the head shell 11 and the tail shell 21, thereby reducing the abrasion of the sheet base band 4, and meanwhile the U-shaped groove can limit the sheet base band 4, and then the sheet base band 4 is prevented from slipping.

[0034] The sheet base band tray conveyor driving head and tail mechanism used in the utility model has the same operation mode as the conveyor disclosed in CN220200398U and entitled "Sheet base band tray conveyor", which has been the prior art, and will not be repeated here.

[0035] The above merely is a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto, any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, all should be covered in the protection scope of the present application.

Claims

1. A drive head and tail mechanism for a sheet base belt pallet conveyor, comprising a drive module (1), a driven module (2), a profile (3), a sheet base belt (4), a drive shaft (5), and a motor (6), wherein the drive module (1), the driven module (2), the profile (3), and the sheet base belt (4) are all arranged in pairs symmetrically; the drive module (1) comprises a head housing (11), a drive wheel (12), and a head tension wheel (13); the driven module (2) comprises a tail housing (21), a driven wheel (22), and a tail tension wheel (23); the sheet base belt (4) is connected to the drive wheel (12), the head tension wheel (13), the driven wheel (22), and the tail tension wheel (23) respectively, characterized in that: The outer circular structures of the drive wheel (12), head tension wheel (13), driven wheel (22) and tail tension wheel (23) are the same, and the outer circular cross section of the drive wheel (12) is an outwardly convex arc shape.

2. The head and tail drive mechanism for a film base conveyor with a tray according to claim 1, characterized in that: The outer circumference of the drive wheel (12) is provided with multiple limiting strips (121) at equal intervals along its radial direction.

3. The head and tail drive mechanism for a film base conveyor with a tray according to claim 1, characterized in that: Two mounting cylinders (111) are provided inside the head housing (11) and the tail housing (21). The two mounting cylinders (111) located inside the head housing (11) are rotatably connected to the drive wheel (12) and the head tension wheel (13) respectively through two bearings. Each of the two head housings (11) has a through hole (112) for the drive shaft (5) to pass through on its opposite side. The inner walls of the two drive wheels (12) are provided with mounting holes (122) that are interference fit with the end of the drive shaft (5). 5) The two mounting cylinders (111) located in the tail housing (21) are connected to the driven wheel (22) and the tail tensioning wheel (23) respectively through two bearings. The top of the head housing (11) and the tail housing (21) are respectively provided with through grooves (113) for the drive wheel (12) and the driven wheel (22) to drive the base belt (4). The base belt (4) extends into the head housing (11) and the tail housing (21) through the through grooves (113).

4. The head and tail drive mechanism for a film base conveyor with a tray according to claim 3, characterized in that: The drive shaft (5) is a hexagonal shaft.

5. The head and tail drive mechanism for a film base conveyor with a tray according to claim 3, characterized in that: The mounting cylinder (111) has a limiting boss (114) circumferentially arranged at its outer end. The side wall of the limiting boss (114) abuts against one side wall of the inner ring of the bearing. The outer ends of the mounting cylinder (111) located at the head tension wheel (13), driven wheel (22) and tail tension wheel (23) are all provided with a first limiting groove (115) circumferentially arranged. An inner retaining ring (116) whose side wall abuts against the other side wall of the inner ring of the bearing is engaged in the first limiting groove (115). The tensioning wheel (13), driven wheel (22) and tail tensioning wheel (23) are all fitted with a limiting ring (117) whose side wall abuts against one side wall of the bearing outer ring on the inner wall of the head tensioning wheel (13), driven wheel (22) and tail tensioning wheel (23). A second limiting groove (118) is provided circumferentially on the inner wall of the head tensioning wheel (13), driven wheel (22) and tail tensioning wheel (23). An outer retaining ring (119) whose side wall abuts against the other side wall of the bearing outer ring is fitted in the second limiting groove (118).

6. The head and tail drive mechanism for a film base tray conveyor according to claim 3, characterized in that: Both the head housing (11) and the tail housing (21) have openings on the side away from the drive shaft (5), and the openings are connected to sealing caps (7) by multiple bolts.

7. The head and tail drive mechanism for a film base conveyor with a tray according to claim 3, characterized in that: The top of both the head shell (11) and the tail shell (21) are fixed with a support plate (8) by multiple bolts.

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