Workpiece arranging and conveying device

Abstract

The present invention provides a workpiece arranging and conveying device, comprising a bracket, a conveyor belt arranged on the bracket, and a driving mechanism arranged at one end of the bracket and used to drive the conveyor belt to rotate. The bracket is also provided with a workpiece lifting mechanism corresponding to the output end of the conveyor belt. The workpiece lifting mechanism comprises a plurality of lifting plate groups arranged in sequence along the conveying direction of the conveyor belt, a plurality of lifting cylinders respectively connected to the plurality of lifting plate groups, and a plurality of workpiece induction switches respectively arranged on the plurality of lifting plate groups. Each of the lifting plate groups comprises two symmetrically arranged side lifting plates, and is respectively provided on both sides of the conveyor belt. The workpiece arranging and conveying device of the present invention has a simple structure, can automatically arrange workpieces and can prevent the occurrence of missing parts, greatly improving the speed of workpiece arranging and improving production efficiency.

Description

Technical Field

[0001] The present invention relates to the field of workpiece processing, and in particular to a workpiece arranging and conveying device. Background Art

[0002] To offset the pressure of rising labor costs, the pace of intelligent transformation in the domestic manufacturing industry is accelerating. The popularization of "machine replacement" is also driving the development of high-tech manufacturing. Robots that automatically handle and pack workpieces are an indispensable device in automatic production lines. To improve production efficiency, production lines must produce several workpieces simultaneously, and robots must simultaneously handle and pack multiple workpieces. However, during production, it is inevitable that a group of workpieces will be missing due to waste or missing parts. These parts need to be sorted before robots can handle and pack them. However, this can only be done manually, which not only increases the labor intensity of workers but also affects processing efficiency. Summary of the Invention

[0003] In order to solve the problems of high labor intensity and low processing efficiency in manual workpiece arrangement in the prior art, the present invention provides a workpiece arrangement and conveying device that can automatically arrange workpieces with high efficiency.

[0004] The present invention provides a workpiece sorting and conveying device, comprising a bracket, a conveyor belt arranged on the bracket, and a driving mechanism arranged at one end of the bracket and used to drive the conveyor belt to rotate. The bracket is also provided with a workpiece lifting mechanism corresponding to the output end of the conveyor belt. The workpiece lifting mechanism includes a plurality of lifting plate groups arranged in sequence along the conveying direction of the conveyor belt, a plurality of lifting cylinders respectively connected to the plurality of lifting plate groups, and a plurality of workpiece sensing switches respectively arranged on the plurality of lifting plate groups. Each of the lifting plate groups includes two symmetrically arranged side lifting plates, which are respectively arranged on both sides of the conveyor belt.

[0005] As a further improvement of the present invention, the conveyor belt includes two sets of synchronous pulleys and synchronous belts arranged on the two sets of synchronous pulleys, and the driving mechanism includes a driving motor fixed on the bracket and a transmission belt for connecting the output end of the driving motor and one of the sets of synchronous pulleys.

[0006] As a further improvement of the present invention, there are two synchronous belts which are arranged in parallel, and the lifting plate group further includes a middle lifting plate arranged between the two synchronous belts, and the middle lifting plate has the same height as the side lifting plates.

[0007] As a further improvement of the present invention, the workpiece lifting mechanism further includes a support plate, which is disposed below the conveyor belt and fixedly connected to the bracket, and the multiple lifting cylinders are fixed on the support plate.

[0008] As a further improvement of the present invention, a guide limit plate is provided on each side of the conveyor belt at the upper end of the bracket, and the guide limit plate is higher than the upper end surface of the conveyor belt.

[0009] As a further improvement of the present invention, a control box is further provided at one end of the bracket, and a controller for controlling the operation of the jacking mechanism and the driving mechanism is provided in the control box.

[0010] As a further improvement of the present invention, a support foot with adjustable height is provided at the lower end of the bracket.

[0011] The beneficial effects of the present invention are as follows: the workpiece arranging and conveying device of the present invention has a simple structure, can automatically arrange workpieces and prevent the occurrence of missing parts, greatly improves the speed of workpiece arranging and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a workpiece arranging and conveying device of the present invention;

[0013] Figure 2 It is a structural schematic diagram of an embodiment of a workpiece arranging and conveying device of the present invention;

[0014] Figure 3 yes Figure 2 Control flow chart of an embodiment.

[0015] Figure numerals: 1-bracket; 11-guide limit plate; 12-support leg; 2-conveyor belt; 21-synchronous pulley; 22-synchronous belt; 3-driving mechanism; 31-driving motor; 32-transmission belt; 41-lifting plate group; 42-lifting cylinder; 43-workpiece induction switch; 44-support plate; 5-control box; 6-workpiece. DETAILED DESCRIPTION

[0016] like Figure 1As shown, the present invention discloses a workpiece sorting and conveying device, comprising a bracket 1, a conveyor belt 2 arranged on the bracket 1, and a driving mechanism 3 arranged at one end of the bracket 1 and used to drive the conveyor belt 2 to rotate. The bracket 1 is also provided with a workpiece jacking mechanism corresponding to the output end of the conveyor belt 2, and the workpiece jacking mechanism includes a plurality of jacking plate groups 41 arranged in sequence along the conveying direction of the conveyor belt 2, a plurality of jacking cylinders 42 respectively connected to the plurality of jacking plate groups 41, and a plurality of workpiece sensing switches 43 respectively arranged on the plurality of jacking plate groups 41, each of the jacking plate groups 41 includes two symmetrically arranged side jacking plates, and are respectively arranged on both sides of the conveyor belt 2, the conveyor belt 2 is used to convey the workpiece 6, and the plurality of workpiece jacking plate groups 41 can jack the conveyed workpiece 6 in sequence, thereby ensuring that there will be a fixed number of workpieces 6 at the output end of the conveyor belt 2, so as to facilitate the robot to unload and pack, and prevent the occurrence of missing parts.

[0017] During operation, the processed and sorted workpieces 6 will be placed by the robot into the output end of the conveyor belt 2 of the workpiece sorting and conveying device. Of course, there may be missing parts in the group of workpieces 6 placed in. At this time, the first workpiece sensing switch on the lifting mechanism at the output end of the conveyor belt 2 will detect whether there is a workpiece at the upper end. The workpiece sensing switch 43 at the end of the output end of the conveyor belt 2 is the first workpiece sensing switch, which is arranged backward in sequence. If the first workpiece sensing switch does not sense the workpiece, the driving mechanism 3 will drive the conveyor belt 2 to rotate a unit distance so that a group of workpieces can advance a fixed distance at the same time. Then the first workpiece sensing switch will detect again whether there is a workpiece at the upper end until the first workpiece sensing switch detects that there is a workpiece at the upper end. At this time, the first lifting plate group 41 moves upward under the drive of the first lifting cylinder 42 to lift the workpiece so that the workpiece is separated from the conveyor belt 2. Then the second workpiece sensing switch detects whether there is a workpiece at the upper end. If a workpiece is detected at the upper end, the second lifting plate group 41 moves upward under the drive of the second lifting flagpole. The movement lifts the workpiece. If it is detected that there is no workpiece at the upper end, the driving mechanism 3 will drive the conveyor belt 2 to rotate a unit distance, so that a group of workpieces advance a fixed distance at the same time, and then the second workpiece sensing switch will detect again whether there is a workpiece at the upper end until the second workpiece sensing switch detects that there is a workpiece at the upper end. At this time, the second lifting plate moves upward under the drive of the second lifting cylinder 42 to lift the corresponding workpiece, so that the workpiece is separated from the conveyor belt 2, and this is repeated until the workpiece sensing switches on the n lifting plate groups 41 all detect that there is a workpiece at the upper end and are lifted by the n lifting plate groups 41, where n is an integer and greater than or equal to 2. If the n workpiece sensing switches 43 do not all sense the workpiece after the conveyor belt 2 rotates 2n-1 distances, the workpiece sorting and conveying device stops running and waits for the loading robot to put the workpiece on the conveyor belt 2 of the workpiece sorting and conveying device again. The workpiece sorting and conveying device starts sorting again until the n workpiece sensing switches all sense the workpiece, and the workpiece sorting and conveying device stops running and waits for the robot to grab the sorted workpiece.

[0018] In this technical solution, the conveyor belt 2 includes two sets of synchronous pulleys 21 and synchronous belts 22 arranged on the two sets of synchronous pulleys 21. The driving mechanism 3 includes a driving motor 31 fixed on the bracket 1 and a transmission belt 32 for connecting the output end of the driving motor 31 with one set of the synchronous pulleys 21. In this embodiment, the driving motor 31 is a servo motor. The driving mechanism 3 has a simple structure, reliable operation and low cost.

[0019] In this technical solution, there are two synchronous belts 22, which are arranged in parallel. The lifting plate group 41 also includes a middle lifting plate arranged between the two synchronous belts 22. The middle lifting plate is at the same height as the side lifting plates, which has a good conveying effect and can ensure the stability of the lifting of the lifting plate group 41.

[0020] In this technical solution, the workpiece lifting mechanism also includes a support plate 44, which is arranged under the conveyor belt 2 and fixedly connected to the bracket 1. The multiple lifting cylinders 42 are fixed on the support plate 44, which is convenient for fixing the workpiece lifting mechanism, and the support through the support plate 44 has better stability and a simpler structure.

[0021] In this technical solution, the upper end of the bracket 1 is located on both sides of the conveyor belt 2 and is respectively provided with a guide limit plate 11. The guide limit plate 11 is higher than the upper end surface of the conveyor belt 2. The guide limit plate 11 can guide and limit the workpiece when conveying the workpiece to prevent the workpiece from falling.

[0022] In this technical solution, a control box 5 is further provided at one end of the bracket 1, and a controller for controlling the operation of the jacking mechanism and the driving mechanism 3 is provided in the control box 5. The controller can detect the detection signal of the workpiece sensing switch and control the jacking cylinder 42 and the driving motor 31 according to the detection signal. The controller is an existing technology and its control function can be realized by simple programming operation by technicians in this field.

[0023] In this technical solution, the lower end of the bracket 1 is provided with a support foot 12 whose height can be adjusted to facilitate leveling of the device.

[0024] The following describes the working process in detail using four jacking plate groups 41 as an example. Figure 2 and Figure 3 As shown:

[0025] Step 1. The loading robot puts a group of workpieces 6 on the workpiece sorting conveyor line. This group of workpieces is missing a workpiece at the second position on the left. Figure 2 shown.

[0026] Step 2: Clear the conveyor line step count to 0.

[0027] Step 3. The workpiece sensing switch on the first lifting plate group 41 (the rightmost lifting plate group 41) does not sense the workpiece.

[0028] Step 4. The controller in the control box 5 controls the drive motor 31 to rotate, and drives the synchronous belt 22 to advance a fixed distance through the transmission belt 32, so that the group of workpieces advance a fixed distance at the same time, and the step number increases by 1.

[0029] Step 5. Repeat steps 3 and 4 until the conveyor belt 2 advances a fixed distance for the fourth time and the first workpiece sensing switch senses the workpiece. The number of steps is 4.

[0030] Step 6. The first lifting cylinder is lifted, driving the lifting plate group 41 on the cylinder to lift the workpiece, so that the workpiece is separated from the conveyor belt 2.

[0031] Step 7. The workpiece sensing switch on the second lifting cylinder senses the workpiece.

[0032] Step 8. The second cylinder lifts up, driving the top plate on the cylinder to lift the workpiece, so that the workpiece is separated from the conveyor belt 2.

[0033] Step 9. The workpiece sensing switches on the three lifting cylinders do not sense the workpiece.

[0034] Step 10. The controller in the control box 5 controls the drive motor 31 to rotate, and drives the synchronous belt 22 to advance a fixed distance through the transmission belt 32, so that the group of workpieces advance a fixed distance at the same time, and the step number is increased by 1, and the step number is 5.

[0035] Step 11. The third workpiece sensing switch senses the workpiece.

[0036] Step 12: The third lifting cylinder is lifted, driving the lifting plate assembly 41 on the cylinder to lift the workpiece, so that the workpiece is separated from the conveyor belt 2.

[0037] Step 13. The workpiece sensing switch on the fourth lifting cylinder does not sense the workpiece.

[0038] Step 14. The controller in the control box 5 controls the driving motor 31 to rotate, and drives the synchronous belt 22 to advance a fixed distance through the transmission belt 32, so that the reorganized workpiece advances a fixed distance at the same time, and the step number increases by 1.

[0039] Step 15. Repeat steps 13 and 44 until the workpiece sensing switch on the fourth lifting cylinder has not sensed the workpiece after the conveyor belt 2 advances a fixed distance for the 7th time. The step number is 7.

[0040] Step 16. The workpiece sorting conveyor line stops running and waits for the robot to put workpiece 6 on the workpiece sorting conveyor line again, and then continues to sort the workpiece according to the above steps until the fourth workpiece sensing switch senses the workpiece, the workpiece sorting conveyor device stops running, and waits for the robot to grab the sorted workpiece.

[0041] The workpiece arranging and conveying device of the present invention has a simple structure, can automatically arrange workpieces and prevent the occurrence of missing parts, greatly improves the speed of workpiece arranging and enhances production efficiency.

[0042] The above is a further detailed description of the present invention in conjunction with specific preferred embodiments, and the specific implementation of the present invention should not be considered to be limited to these descriptions. For those skilled in the art of the present invention, without departing from the concept of the present invention, several simple deductions or substitutions can be made, which should be considered to fall within the scope of protection of the present invention.

Claims

1. A workpiece arranging and conveying device, characterized in that: The present invention relates to a method for raising and lowering the conveyor belt to a lifting position, wherein the lifting mechanism comprises a plurality of lifting plate groups arranged in sequence along the conveying direction of the conveyor belt, a plurality of lifting cylinders respectively connected to the plurality of lifting plate groups and a plurality of workpiece induction switches respectively arranged on the plurality of lifting plate groups, each of the lifting plate groups comprises two symmetrically arranged side lifting plates, and is respectively arranged on both sides of the conveyor belt, the conveyor belt comprises two sets of synchronous pulleys and synchronous belts arranged on the two sets of synchronous pulleys, the driving mechanism comprises a driving motor fixed to the support and a driving mechanism for connecting the driving motor output The transmission belt of one group of synchronous pulleys is connected to the workpiece jacking mechanism, and the workpiece jacking mechanism also includes a support plate, which is arranged under the conveyor belt and fixedly connected to the bracket. The multiple jacking cylinders are fixed on the support plate. During operation, the processed workpieces to be sorted are placed on the output end of the conveyor belt of the workpiece sorting and conveying device by the manipulator. At this time, the first workpiece sensing switch on the jacking mechanism at the output end of the conveyor belt detects whether there is a workpiece at the upper end. The workpiece sensing switch at the end of the conveyor belt output end is the first workpiece sensing switch, which is arranged backward in sequence. If the first workpiece sensing switch does not sense the workpiece, the driving mechanism drives the conveyor belt to rotate a unit distance so that a group of workpieces can advance a fixed distance at the same time. Then the first workpiece sensing switch detects whether there is a workpiece at the upper end again, until the first workpiece sensing switch detects that there is a workpiece at the upper end, at this time, the first lifting plate group moves upward under the drive of the first lifting cylinder to lift the workpiece, so that the workpiece is off the conveyor belt, and then the second workpiece sensing switch detects whether there is a workpiece at the upper end. If a workpiece is detected at the upper end, the second lifting plate group moves upward under the drive of the second lifting flagpole to lift the workpiece. If it is detected that no workpiece is at the upper end, the driving mechanism drives the conveyor belt to rotate a unit distance, so that a group of workpieces advance a fixed distance at the same time, and then the second workpiece sensing switch detects whether there is a workpiece at the upper end again, until the second workpiece sensing switch detects that there is a workpiece When the workpiece is at the upper end, the second lifting plate moves upward driven by the second lifting cylinder to lift the corresponding workpiece, so that the workpiece is off the conveyor belt, and this is repeated until the workpiece sensing switches on the n lifting plate groups all detect that there is a workpiece at the upper end and are lifted by the n lifting plate groups, where n is an integer greater than or equal to 2. If the n workpiece sensing switches do not all sense the workpiece after the conveyor belt rotates 2n-1 distances, the workpiece sorting and conveying device stops running and waits for the loading robot to put the workpiece on the conveyor belt of the workpiece sorting and conveying device again. The workpiece sorting and conveying device starts sorting again until all n workpiece sensing switches sense the workpiece, the workpiece sorting and conveying device stops running and waits for the robot to grab the sorted workpiece.

2. The workpiece arranging and conveying device according to claim 1, characterized in that: There are two synchronous belts, which are arranged in parallel. The lifting plate group also includes a middle lifting plate arranged between the two synchronous belts. The middle lifting plate has the same height as the side lifting plates.

3. The workpiece arranging and conveying device according to claim 1, characterized in that: The upper end of the bracket is located on both sides of the conveyor belt and is respectively provided with a guide limit plate, and the guide limit plate is higher than the upper end surface of the conveyor belt.

4. The workpiece arranging and conveying device according to claim 1, characterized in that: A control box is further provided at one end of the bracket, and a controller for controlling the operation of the jacking mechanism and the driving mechanism is provided in the control box.

5. The workpiece arranging and conveying device according to claim 1, characterized in that: The lower end of the bracket is provided with a support foot with adjustable support foot height.

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