CN218967897U - Conveying device - Google Patents

Abstract

A conveying device is helpful for suppressing dust generated by a supporting part of a conveying belt when one of the conveying belts approaches to or separates from the other conveying belt, thereby causing adverse effects on conveying objects and the like. The carrying device of the present utility model comprises: a pair of transmission shafts whose axial directions are parallel to a first direction and which are aligned in a second direction perpendicular to the first direction; and a pair of conveyor belts arranged in the first direction, each of the conveyor belts being provided to the pair of transmission shafts via a belt pulley frame and being carried by a transport object, wherein the pulley provided to one of the pair of conveyor belts is supported by the transmission shaft via a sleeve, and the sleeve is supported by the transmission shaft via balls so as to be movable in the first direction.

Description

Conveying device

Technical Field

The present utility model relates to a conveying device.

Background

Conventionally, there is a transport apparatus including: a pair of transmission shafts whose axial directions are parallel to a first direction and which are aligned in a second direction perpendicular to the first direction; and a pair of conveyor belts arranged in the first direction, each of the pair of conveyor belts being provided on the pair of transmission shafts via a belt pulley frame and being supported by a circuit board or the like to be conveyed.

However, in practice, there are cases where the conveyance object has various sizes, and therefore, it is preferable that one of the pair of conveyor belts can be moved closer to or farther from the other so as to match the size of the conveyance object.

However, when one of the conveyor belts approaches or separates from the other, dust may be generated in the supporting portion of the conveyor belt, which may adversely affect the conveyance object or the like.

Disclosure of Invention

The present utility model has been made in view of the above-described problems, and an object thereof is to provide a conveying apparatus that helps to suppress dust from being generated in a supporting portion of a pair of conveyor belts when one of the conveyor belts approaches or separates from the other, thereby adversely affecting a conveying object or the like.

In order to achieve the above object, the present utility model provides a transporting device comprising: a pair of transmission shafts whose axial directions are parallel to a first direction and which are aligned in a second direction perpendicular to the first direction; and a pair of conveyor belts arranged in the first direction, each of the conveyor belts being provided to the pair of transmission shafts via a belt pulley frame and being carried by a transport object, wherein the pulley provided to one of the pair of conveyor belts is supported by the transmission shaft via a sleeve, and the sleeve is supported by the transmission shaft via balls so as to be movable in the first direction.

According to the conveying device of the present utility model, since the pulley supported by the drive shaft via the sleeve and the sleeve supported by the drive shaft via the balls so as to be movable in the first direction, when the sleeve is required to be moved relative to the drive shaft to adjust the distance between the pair of conveyor belts depending on the size of the object to be conveyed, the sleeve can smoothly slide on the drive shaft, the resistance of the adjustment work is small, and dust is not generated by friction when the sleeve slides on the drive shaft, and the object to be conveyed is not adversely affected.

In the conveying device according to the present utility model, it is preferable that grooves for accommodating the balls are provided on an inner peripheral surface of the sleeve and an outer peripheral surface of the transmission shaft, respectively.

According to the conveying device of the present utility model, since the grooves for accommodating the balls are provided on the inner peripheral surface of the sleeve and the outer peripheral surface of the transmission shaft, respectively, smooth sliding of the sleeve with respect to the transmission shaft in the first direction and rotation of the sleeve together with the transmission shaft can be easily achieved at the same time, and therefore, there is no need to provide a conveying mechanism separately from the pair of conveyor belts, and the conveying structure can be simplified.

In the carrying device according to the present utility model, it is preferable that the plurality of grooves are provided at equal intervals in the circumferential direction of the drive shaft.

According to the carrying device of the present utility model, since the plurality of grooves are provided at equal intervals in the circumferential direction of the drive shaft, it is possible to stably support the boss in the circumferential direction by the drive shaft.

In the transporting device according to the present utility model, it is preferable that the groove extends in the first direction, and the balls are arranged in a plurality in the first direction.

According to the carrying device of the utility model, the grooves extend along the first direction, and the balls are arranged in a plurality along the first direction, so that the shaft sleeve can slide on the transmission shaft along the first direction more smoothly.

In the transporting device according to the present utility model, it is preferable that the transporting device further includes a sleeve driving mechanism that drives the sleeve to move on the transmission shaft in the first direction.

In the transporting device according to the present utility model, the sleeve driving mechanism preferably includes: a lead screw extending in the first direction; a nut engaged with the screw shaft and interlocked with the shaft sleeve in the first direction; and a motor that drives the screw to rotate, thereby moving the nut in the first direction.

In the transporting device according to the present utility model, it is preferable that the sleeve driving mechanism further includes a guide rail that guides the nut to move in the first direction and restricts the nut from rotating.

In addition, the conveyance device according to the present utility model preferably further includes a drive shaft drive mechanism that drives the drive shaft to rotate.

In the transporting device of the present utility model, it is preferable that the transporting object is a circuit board.

(effects of the utility model)

According to the present utility model, since the pulley on which one of the pair of conveyor belts is supported by the drive shaft via the sleeve and the sleeve is supported by the drive shaft via the balls so as to be movable in the first direction, when the sleeve is required to be moved relative to the drive shaft to adjust the gap between the pair of conveyor belts depending on the size of the object to be conveyed, the sleeve can smoothly slide on the drive shaft, the resistance of the adjustment work is small, and dust is not generated by friction when the sleeve slides on the drive shaft, and the object to be conveyed is not adversely affected.

Drawings

Fig. 1 is a perspective view schematically showing the overall structure of a conveying device according to an embodiment of the present utility model.

Fig. 2 is a perspective view schematically showing a carry-in unit of the carrying device according to the embodiment of the present utility model.

Fig. 3 is another perspective view schematically showing a carry-in unit of the carrying device according to the embodiment of the present utility model.

Fig. 4 is a further perspective view schematically showing a carry-in unit of the carrying device according to the embodiment of the present utility model.

Fig. 5 is a front view schematically showing a drive shaft and a sleeve in a carry-in unit of a carrying device according to an embodiment of the present utility model.

Fig. 6A is a side view schematically showing a drive shaft and a sleeve in a carry-in unit of a carrying device according to an embodiment of the present utility model.

Fig. 6B is a partial cross-sectional view taken along line A-A of fig. 6A.

(symbol description)

1. Conveying device

10. Carry-in unit

11. Transmission shaft

11A first transmission shaft

12. Conveying belt

12A first conveyor belt

12B second conveyer belt

13. Shaft sleeve

13A first shaft sleeve

13B second sleeve

13C third sleeve

13D fourth shaft sleeve

14. Ball bearing

15. Shaft sleeve driving mechanism

151. Screw rod

151A first lead screw

151B second lead screw

152. Nut

152A first nut

152B second nut

153. Motor with a motor housing

154. Guide rail

154A first guide rail

154B second guide rail

155. Transmission belt

156. Transmission belt

16. Transmission shaft driving mechanism

161. Motor with a motor housing

162. Transmission belt

19. Supporting table

191. Table surface portion

192. Leg portion

193. Support plate

20. Cleaning unit

30. Carrying-out unit

W transporting object

GV groove

GV1 groove

GV2 groove

GV3 groove

GV4 groove

Detailed Description

Next, a carrying device according to an embodiment of the present utility model will be described with reference to fig. 1 to 6B, in which fig. 1 is a perspective view schematically showing the overall structure of the carrying device according to an embodiment of the present utility model, fig. 2 is a perspective view schematically showing a carrying-in unit of the carrying device according to an embodiment of the present utility model, fig. 3 is another perspective view schematically showing the carrying-in unit of the carrying device according to an embodiment of the present utility model, fig. 4 is a further perspective view schematically showing the carrying-in unit of the carrying device according to an embodiment of the present utility model, fig. 5 is a front view schematically showing a drive shaft and a sleeve in the carrying-in unit of the carrying device according to an embodiment of the present utility model, fig. 6A is a side view schematically showing the drive shaft and the sleeve in the carrying-in unit of the carrying device according to an embodiment of the present utility model, and fig. 6B is a partial cross-sectional view taken along line A-A of fig. 6A.

Here, for convenience of explanation, three directions orthogonal to each other are defined as an X direction, a Y direction, and a Z direction, one side of the X direction is defined as X1, the other side of the X direction is defined as X2, one side of the Y direction is defined as Y1, the other side of the Y direction is defined as Y2, one side of the Z direction is defined as Z1, and the other side of the Z direction is defined as Z2.

(integral Structure of handling device)

As shown in fig. 1, the conveyance device 1 includes a carry-in unit 10, a cleaning unit 20, and a carry-out unit 30, and a conveyance object W such as a circuit board is conveyed from the carry-in unit 10 to the conveyance unit 30 via the cleaning unit 20.

Here, the carry-in unit 10, the cleaning unit 20, and the carry-out unit 30 are sequentially arranged in the X direction (corresponding to the second direction in the present utility model).

(Structure of carry-in Unit)

As shown in fig. 2 to 6B, the carry-in unit 10 includes: a pair of transmission shafts 11, the axial direction of the pair of transmission shafts 11 being parallel to the Y direction (corresponding to the first direction in the present utility model) and being aligned in the X direction perpendicular to the Y direction; and a pair of conveyor belts 12, the pair of conveyor belts 12 being arranged in the Y direction, being respectively supported on the pair of transmission shafts 11 via pulleys (not shown), and being supported on a transport object W such as a circuit board, the pulleys being supported on the transmission shaft 11 via a sleeve 13, the sleeve 13 being supported on the transmission shaft 11 via balls 14 so as to be movable in the Y direction.

Here, as shown in fig. 3, the pair of drive shafts 11 includes a first drive shaft 11A and a second drive shaft (not shown), and the first drive shaft 11A is located on the X2 direction side (rear side in the conveying direction of the conveying object W) of the second drive shaft. The pair of conveyor belts 12 includes a first conveyor belt 12A (corresponding to one of the pair of conveyor belts in the present utility model) and a second conveyor belt 12B, and the first conveyor belt 12A is located on the Y1 direction side of the second conveyor belt 12B. The first conveyor belt 12A is supported by the first transmission shaft 11A via a first pulley (not shown) and by the second transmission shaft via a second pulley (not shown), and the second conveyor belt 12B is supported by the first transmission shaft 11A via a third pulley (not shown) and by the second transmission shaft via a fourth pulley (not shown). As shown in fig. 5, the sleeve 13 includes a first sleeve 13A and a second sleeve 13B, the first pulley on which the first conveyor belt 12A is mounted is supported by the first transmission shaft 11A via the first sleeve 13A, and the second pulley on which the first conveyor belt 12A is mounted is supported by the second transmission shaft via the second sleeve 13B. The sleeve 13 further includes a third sleeve 13C and a fourth sleeve 13D, the third pulley supported by the first transmission shaft 11A via the third sleeve 13C for the second belt 12B, and the fourth pulley supported by the second transmission shaft via the fourth sleeve 13D for the second belt 12B.

As shown in fig. 6A and 6B, grooves GV in which the balls 14 are accommodated are provided in the inner peripheral surface of the sleeve 13 and the outer peripheral surface of the transmission shaft 11, respectively. Specifically, the groove GV1 in which the ball 14 is accommodated is provided on the inner peripheral surface of the first boss 13A, the groove GV2 in which the ball 14 is accommodated is provided at a portion of the outer peripheral surface of the first transmission shaft 11A which is radially opposed to the groove GV1, the groove GV3 in which the ball 14 is accommodated is provided on the inner peripheral surface of the second boss 13B, and the groove GV4 in which the ball 14 is accommodated is provided at a portion of the outer peripheral surface of the second transmission shaft which is radially opposed to the groove GV 3. Grooves for accommodating the balls 14 may be provided on the inner peripheral surface of the third sleeve 13C and the outer peripheral surface of the first transmission shaft 11A, and grooves for accommodating the balls 14 may be provided on the inner peripheral surface of the fourth sleeve 13D and the outer peripheral surface of the second transmission shaft.

Further, as shown in fig. 6A and 6B, a plurality of grooves GV are provided at intervals (preferably at equal intervals) in the circumferential direction of the propeller shaft 11. The groove GV extends in the Y direction, and a plurality of balls 14 are arranged in the Y direction.

Further, as shown in fig. 2 and 3, the carry-in unit 10 further has a sleeve driving mechanism 15, and the sleeve driving mechanism 15 drives the sleeve 13 to move on the transmission shaft 11 in the Y direction. Specifically, the sleeve driving mechanism 15 includes: a lead screw 151, the lead screw 151 extending in the Y direction; a nut 152 engaged with the lead screw 151 and interlocked with the boss 13 in the Y direction; and a motor 153, the motor 153 driving the screw 151 to rotate, thereby moving the nut 152 in the Y direction. Also, the sleeve driving mechanism 15 further includes a guide rail 154, the guide rail 154 guides the nut 152 to move in the Y direction, and restricts the nut 152 from rotating. More specifically, the lead screws 151 include a first lead screw 151A and a second lead screw 151B, the first lead screw 151A being located on the X2 direction side of the second lead screw 151B. The nut 152 includes a first nut 152A and a second nut 152B, the first nut 152A being engaged with the first screw 151A and interlocked with the first sleeve 13A in the Y direction, the second nut 152B being engaged with the second screw 151B and engaged with the second sleeve 13B in the Y direction (in the illustrated example, the first nut 152A and the second nut 152B are connected together via a connection plate, but not limited thereto). The guide rail 154 includes a first guide rail 154A and a second guide rail 154B, the first guide rail 154A guiding the first nut 152A to move in the Y direction and restricting the first nut 152A from rotating, and the second guide rail 154B guiding the second nut 152B to move in the Y direction and restricting the second nut 152B from rotating. The sleeve driving mechanism 15 further includes a belt 155 and a belt 156, the belt 155 being supported by an output shaft of the motor 153 and the second screw 151B (in the illustrated example, the end on the Y1 direction side) via pulleys, and the belt 156 being provided on the first screw 151A and the second screw 151B (in the illustrated example, the end on the Y2 direction side) via a pulley frame.

As shown in fig. 2 and 3, the carry-in unit 10 further includes a drive shaft driving mechanism 16, and the drive shaft driving mechanism 16 drives the drive shaft 11 to rotate. Specifically, the propeller shaft drive mechanism 16 includes a motor 161 and a belt 162, and the belt 162 is stretched over an output shaft of the motor 161 and the propeller shaft 11 (the first propeller shaft 11A in the illustrated example) via a pulley, and transmits rotational power output from the motor 161 to the propeller shaft 11 (the first propeller shaft 11A in the illustrated example).

As shown in fig. 2 to 4, the carry-in unit 10 further includes a support base 19, and the support base 19 supports the transmission shaft 11, the sleeve drive mechanism 15, and the transmission shaft drive mechanism 16. Specifically, the support table 19 has a table surface portion 191, leg portions 192, and a support plate 193. The mesa portion 191 has a rectangular plate shape having a thickness direction coincident with the Z direction, and a rectangular through hole penetrating in the Z direction is formed in the center of the mesa portion 191. The leg portions 192 extend from four corners of the table portion 191 in the Z2 direction, respectively. The support plate 193 is provided on the Z1 direction side of the mesa portion 191, extends along the X direction so that the thickness direction coincides with the Y direction, and is provided on each of the edges on both sides of the mesa portion 191 in the Y direction. Both ends of the drive shaft 11 and both ends of the lead screw 151 are supported by the support plate 193, respectively. The guide rail 154 is provided on the Z1 direction side of the table surface portion 191, and is provided along the edges of both sides of the table surface portion 191 in the X direction. The motor 153 and the motor 161 are supported by the table 191 on the Z1 direction side (in the illustrated example, are provided on the Y1 direction side edges of the table 191).

(Structure of cleaning Unit)

As shown in fig. 1, the cleaning unit 20 has a plurality of cleaning rollers arranged in the Z direction.

The cleaning unit 20 cleans the conveyance object W such as the circuit board conveyed from the carry-in mechanism 10 by a plurality of cleaning rollers, and conveys the conveyance object W to the carry-out mechanism 30.

Here, since the cleaning unit 20 is not an important point of the present utility model, a detailed description will not be given.

(Structure of carrying-out Unit)

As shown in fig. 1, the carry-out mechanism 30 includes a pair of transmission shafts and a pair of conveyor belts respectively supported by the transmission shafts via pulleys, similarly to the carry-in mechanism 10.

The carrying-out mechanism 30 carries the object W to be carried, such as the circuit board discharged from the cleaning unit 20, by a pair of conveyor belts.

Here, since the carry-out mechanism 30 is not an important point of the present utility model, a detailed description thereof will not be given.

(example of the operation of the conveying device)

When the conveying device is operated, for example, a width adjustment operation is performed. Specifically, the motor 153 is operated according to the size (the size in the Y direction) of the conveyance object W, and thereby the belt 155 rotates to drive the second screw 151B to rotate, and the belt 156 drives the first screw 151A to rotate together. By the rotation of the first and second lead screws 151A and 151B, the first nut 152A moves in the Y direction under the guide of the first guide rail 154A, and the second nut 152B moves in the Y direction under the guide of the second guide rail 154B, whereby the first and second bushings 13A and 13B are moved in the Y direction, thereby driving the first and second conveyor belts 12A and 12B to move in the Y direction until the distance between the first and second conveyor belts 12A and 12B matches the size of the conveyance object W such as the circuit board.

Then, carrying operation is performed. Specifically, for example, the conveyance object W such as a circuit board is moved in the Z1 direction by a lifting mechanism, not shown, and is carried on the first conveyor 12A and the second conveyor 12B. Then, the motor 161 is operated, whereby the belt 162 is rotated, thereby rotating the first transmission shaft 11A. The first shaft sleeve 13A and the third shaft sleeve rotate with the rotation of the first transmission shaft 11A, thereby driving the first conveyor belt 12A and the second conveyor belt 12B to rotate, and the first conveyor belt 12A and the second conveyor belt 12B convey the conveyance object W such as the circuit board toward the X1 direction side.

(main effects of the present embodiment)

According to the conveying device 1 of the present embodiment, since the pulley on which one of the pair of conveyor belts 12 is supported by the drive shaft 11 via the sleeve 13 and the sleeve 13 is supported by the drive shaft 11 so as to be movable in the Y direction via the balls 14, when the sleeve 13 needs to be moved relative to the drive shaft 11 to adjust the interval between the pair of conveyor belts 12 depending on the size of the conveying object W, the sleeve 13 can smoothly slide on the drive shaft 11, the resistance of the adjustment work is small, and dust is not generated by friction when the sleeve 13 slides on the drive shaft 11, and adverse effects on the conveying object W and the like are not caused.

Further, according to the conveying device 1 of the present embodiment, since the grooves GV in which the balls 14 are accommodated are provided on the inner peripheral surface of the sleeve 13 and the outer peripheral surface of the drive shaft 11, respectively, smooth sliding of the sleeve 13 with respect to the drive shaft 11 in the Y direction and rotation of the sleeve 13 together with the drive shaft 11 can be easily and simultaneously achieved, and therefore, in the carry-in unit 10, there is no need to provide a conveying mechanism other than the pair of conveyor belts 13 to convey the conveyance object W in the X direction, thereby simplifying the conveying structure.

The utility model has been described above by way of example with reference to the accompanying drawings, it being apparent that the utility model is not limited to the embodiments described above.

For example, in the above embodiment, the conveyance target is a circuit board, but the conveyance target is not limited to this, and other components may be used.

In the above embodiment, the carrying device 1 includes the carry-in unit 10, the cleaning unit 20, and the carry-out unit 30, but the present utility model is not limited to this, and the carry-in unit 10 may be used alone.

In addition, in the above embodiment, the sleeve 13 includes the third sleeve 13C and the fourth sleeve 13D, and the third sleeve 13C and the fourth sleeve 13D may have the same structure as the first sleeve 13A and the second sleeve 13B, or may have a structure different from the first sleeve 13A and the second sleeve 13B.

In the above embodiment, the third pulley on which the second conveyor belt 12B is supported by the first transmission shaft 11A via the third sleeve 13C, and the fourth pulley on which the second conveyor belt 12B is supported by the second transmission shaft via the fourth sleeve 13D, but the present utility model is not limited thereto, and the third sleeve 13C and the fourth sleeve 13D may be omitted, so that the second conveyor belt 12B is directly supported by the first transmission shaft 11A and the second transmission shaft via the third pulley and the fourth pulley.

In the above embodiment, the grooves GV in which the balls 14 are accommodated are provided on the inner peripheral surface of the sleeve 13 and the outer peripheral surface of the transmission shaft 11, but the present utility model is not limited thereto, and the grooves GV in which the balls 14 are accommodated may be provided only on one of the inner peripheral surface of the sleeve 13 and the outer peripheral surface of the transmission shaft 11, and in this case, another conveyance mechanism may be provided to convey the object W such as the circuit board in the X direction.

In the above embodiment, the carry-in unit 10 has the sleeve driving mechanism 15, and the sleeve driving mechanism 15 drives the sleeve 13 to move on the transmission shaft 11 in the Y direction, but the present utility model is not limited thereto, and the sleeve 13 may be manually moved on the transmission shaft 11 in the Y direction according to circumstances.

It is to be understood that the present utility model can freely combine the respective portions in the embodiment, or appropriately modify and omit the respective portions in the embodiment within the scope thereof.

Claims (9)

1. A handling device, comprising: a pair of transmission shafts whose axial directions are parallel to a first direction and which are aligned in a second direction perpendicular to the first direction; and a pair of conveyor belts arranged in the first direction, respectively provided on the pair of transmission shafts via a belt pulley frame, and carried by the object to be conveyed,

the pulley on which one of the pair of conveyor belts is mounted is supported by the drive shaft via a sleeve,

the sleeve is supported on the transmission shaft via balls so as to be movable in the first direction.

2. The handling device of claim 1, wherein the handling device comprises a frame,

grooves for accommodating the balls are respectively formed in the inner peripheral surface of the sleeve and the outer peripheral surface of the transmission shaft.

3. Handling device according to claim 2, wherein,

the grooves are provided at equal intervals in the circumferential direction of the drive shaft.

4. Handling device according to claim 2, wherein,

the slot extends in the first direction,

the balls are arranged in a plurality along the first direction.

5. The handling device of claim 1, wherein the handling device comprises a frame,

also has a shaft sleeve driving mechanism,

the shaft sleeve driving mechanism drives the shaft sleeve to move on the transmission shaft along the first direction.

6. The handling device of claim 5, wherein the handling device comprises a frame,

the sleeve driving mechanism includes:

a lead screw extending in the first direction;

a nut engaged with the screw shaft and interlocked with the shaft sleeve in the first direction; and

and a motor that drives the screw to rotate, thereby moving the nut in the first direction.

7. The handling device of claim 6, wherein the handling device comprises a frame,

the shaft sleeve driving mechanism also comprises a guide rail,

the guide guides the nut to move in the first direction and restricts the nut from rotating.

8. The handling device of claim 1, wherein the handling device comprises a frame,

also has a driving mechanism of a transmission shaft,

the transmission shaft driving mechanism drives the transmission shaft to rotate.

9. The handling device of claim 1, wherein the handling device comprises a frame,

the object to be conveyed is a circuit board.

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