Feeding mechanism for overturning workpieces

Abstract

The feeding mechanism comprises a feeding motor and a feeding impeller, an output shaft of the feeding motor is in transmission connection with the center of the feeding impeller, the feeding impeller comprises a plurality of unit blades which are evenly arranged in the circumferential direction, each unit blade is provided with a suction head used for sucking a workpiece, and the suction head is connected with the center of the feeding impeller. The periphery of the edge of the feeding impeller is used for storing a feeding position and a discharging position of workpieces, the suction head is used for sucking the workpieces at the feeding position, and the feeding impeller is driven by the feeding motor to be used for conveying the workpieces at the feeding position to the discharging position. The feeding impeller is provided with the unit blades, each unit blade is provided with the suction head used for sucking the workpieces, the feeding impeller is driven by the feeding motor to rotate, the workpieces can be turned over at the same time, and therefore the workpieces can be turned over efficiently.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of feeding equipment, especially a feeding mechanism of overturning workpieces. BACKGROUND

[0002] In the workpiece processing and production process, the workpiece overturning and feeding process is usually involved. The overturning device is usually used in the production process to realize the automatic overturning of the workpiece. The overturning device of the prior art usually includes a suction head or a mechanical hand for grabbing the workpiece, a cylinder or a motor for driving the suction head or the mechanical hand to rotate by a certain angle.

[0003] For example, the Chinese patent with publication number CN220575264U discloses a product 180-degree overturning mechanism, which includes a support seat, a hinge mechanism, a driving cylinder, a feeding tray, and a vacuum suction head. The vacuum suction head is arranged in the middle of the support seat, the support seat is connected to the end of the driving cylinder through the hinge mechanism, the hinge mechanism is arranged on one side of the feeding tray, and the driving cylinder is arranged on the side of the hinge mechanism away from the feeding tray. The product 180-degree overturning process is as follows: first, the product is placed on the feeding tray, at this time the driving cylinder is retracted, the driving cylinder drives the support seat to the position directly above the product, the product is driven to rise below the support seat to start the vacuum suction head, the product is sucked, then the driving cylinder is extended to the maximum stroke to overturn the product by 180 degrees, and the product is placed in the next station for other mechanisms to suck. The support seat of the above-mentioned overturning mechanism is provided with only one vacuum suction head, so that the driving cylinder can only overturn one product at a time, resulting in low product overturning efficiency.

[0004] In view of the above problems, the utility model provides a feeding mechanism of overturning workpieces. UTILITY MODEL CONTENTS

[0005] The utility model overcomes the above-mentioned technical deficiencies and provides a feeding mechanism of overturning workpieces, which can overturn multiple workpieces at the same time, thereby improving the efficiency of the feeding mechanism in overturning workpieces.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] A feeding mechanism of overturning workpieces, which includes a feeding motor and a feeding impeller. The output shaft of the feeding motor is drivingly connected to the center of the feeding impeller. The feeding impeller includes multiple unit blades arranged uniformly in the circumferential direction. Each unit blade is provided with a suction head for sucking workpieces. The outer periphery of the edge of the feeding impeller is used for storing workpieces in the feeding position and the discharging position. The suction head is used for sucking the workpieces in the feeding position. The feeding impeller is driven by the feeding motor to convey the workpieces in the feeding position to the discharging position.

[0008] Preferably, the feeding mechanism further comprises a guide cam, the guide cam is provided with a shaft through hole through which the output shaft of the feeding motor penetrates, a spiral guide groove around the shaft through hole, one end of the spiral guide groove is close to the shaft through hole, and the other end gradually moves away from the shaft through hole to form a spiral structure; the two ends of the spiral guide groove are connected through a reset opening, the unit blade is provided with a suction head guide rail and a suction head base for mounting the suction head, the suction head base is slidably connected with the suction head guide rail through a sliding block, the suction head guide rail extends from the center of the feeding impeller to the outer periphery, and the suction head base is provided with a sliding part for slidably connecting with the spiral guide groove; the outer periphery of the guide cam is provided with a driving mechanism close to the reset opening, and the driving mechanism is used for pushing the sliding part located at one end of the spiral guide groove close to the shaft through hole to the other end of the spiral guide groove away from the shaft through hole.

[0009] Preferably, the spiral guide groove is arranged close to the edge of the guide cam.

[0010] Preferably, the spiral guide groove comprises a workpiece overturning section and a suction head resetting section, one end of the workpiece overturning section is close to the feeding position, the other end of the workpiece overturning section is close to the discharging position, the one end of the workpiece overturning section close to the discharging position is connected with the one end of the suction head resetting section, and the other end of the suction head resetting section is close to the shaft through hole; the workpiece overturning section is a semicircular arc groove with an unchanged curvature radius, and the curvature radius of the spiral guide groove of the suction head resetting section gradually decreases from the connected end with the workpiece overturning section to the shaft through hole.

[0011] Preferably, the feeding mechanism further comprises a rack, the feeding motor is mounted on the rack through a motor support, and the guide cam is fixedly connected with the motor support through a cam support.

[0012] Preferably, the driving mechanism comprises a push-pull cylinder and a hooking part for hooking the sliding part, the power output end of the push-pull cylinder is a piston rod, and the piston rod is connected with the hooking part through a transmission assembly.

[0013] Preferably, the feeding mechanism further comprises a cylinder support, the push-pull cylinder is mounted on the cylinder support, and the cylinder support is connected with the edge of the cam support.

[0014] Preferably, the transmission assembly comprises an L-shaped connecting piece, a push-pull guide rail parallel to the piston rod, the L-shaped connecting piece comprises a first connecting part and a second connecting part connected with the first connecting part perpendicularly, the first connecting part is connected with the piston rod perpendicularly, one end of the push-pull guide rail is connected with the second connecting part, the other end of the push-pull guide rail is connected with the hooking part, the cylinder support is fixedly connected with a guide block, the guide block is provided with a guide groove, the push-pull guide rail is slidably connected with the guide groove, the reset opening is a linear opening, and the reset opening is parallel to the piston rod.

[0015] Preferably, a sensor for checking the suction head is arranged around the upper loading position.

[0016] Compared with the prior art, the utility model has the beneficial effects that:

[0017] 1. The upper loading impeller of the utility model is provided with a plurality of unit blades, each unit blade is provided with a suction head for sucking workpieces, the upper loading motor drives the upper loading impeller to rotate, a plurality of workpieces can be flipped simultaneously, thereby realizing efficient flipping of workpieces.

[0018] 2. The guide cam of the utility model is provided with a spiral guide groove, the sliding part of the suction head base is slidably connected with the spiral guide groove, in the rotating process of the upper loading impeller, the sliding part slides in the spiral guide groove, so that the upper loading impeller is more stable in the rotating process.

[0019] 3. The spiral guide groove comprises a workpiece flipping section and a suction head resetting section, the curvature radius of the spiral guide groove of the suction head resetting section gradually decreases from one end in communication with the workpiece flipping section to the shaft through hole, in the suction head resetting process, the sliding part moves in the suction head resetting section, so that the suction head base is closer and closer to the center of the upper loading impeller, the force arm and the moment when the suction head base rotates are reduced, thereby making the upper loading mechanism more stable in operation.

[0020] 4. The utility model hooks the sliding part through the hooking part, and then pulls the sliding part back to the workpiece flipping section through the push-pull cylinder, in this process, the push-pull guide rail cooperates with the guide block, so that the resetting process of the sliding part is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is the overall schematic of the upper loading mechanism of the utility model for flipping workpieces Figure 1 ;

[0022] Figure 2 is the overall schematic of the upper loading mechanism of the utility model for flipping workpieces Figure 2 ;

[0023] Figure 3 is the structural schematic of the guide cam of the utility model;

[0024] Figure 4 is the structural schematic of the upper loading impeller of the utility model;

[0025] The implementation, functional characteristics and advantages of the utility model will be further described with reference to the drawings in combination with embodiments. DETAILED DESCRIPTION

[0026] The features of the utility model and other related features are further described in detail through examples below, so as to facilitate the understanding of the skilled in the art:

[0027] Referring to Figures 1-4 , an embodiment of the feeding mechanism for overturning workpieces is proposed:

[0028] The feeding mechanism for overturning workpieces comprises a feeding motor 1 and a feeding impeller 2. The output shaft of the feeding motor 1 is in driving connection with the center of the feeding impeller 2. The feeding impeller 2 comprises four unit blades 21 arranged uniformly in the circumferential direction. Each unit blade 21 is provided with a suction head 23 for sucking workpieces. The outer periphery of the edge of the feeding impeller 2 is used for storing workpieces in a feeding position 3 and a discharging position. The suction head 23 is used for sucking workpieces in the feeding position 3. The feeding impeller 2 is driven by the feeding motor 1 to convey the workpieces in the feeding position 3 to the discharging position.

[0029] In other embodiments, the feeding impeller 2 can be provided with two, three, five or eight or more unit blades 21.

[0030] As Figure 1 shown, the feeding mechanism further comprises a guide cam 4. The guide cam 4 is provided with a shaft through hole 41 through which the output shaft of the feeding motor 1 penetrates, and a spiral guide groove 42 surrounding the shaft through hole 41. One end of the spiral guide groove 42 is close to the shaft through hole 41, and the other end gradually moves away from the shaft through hole 41 to form a spiral structure. The two ends of the spiral guide groove 42 are connected through a reset opening 43. The unit blade 21 is provided with a suction head guide rail 22 and a suction head base 24 for mounting the suction head 23. The suction head base 24 is slidably connected with the suction head guide rail 22 through a sliding block 25. The suction head guide rail 22 extends from the center to the outer periphery of the feeding impeller 2. The suction head base 24 is provided with a sliding part 241 for slidably connecting with the spiral guide groove 42. The sliding part 241 is located at the outer periphery of the unit blade 21. The outer periphery of the guide cam 4 is provided with a driving mechanism 5 close to the reset opening 43. The driving mechanism 5 is used for pushing the sliding part 241 located at one end of the spiral guide groove 42 close to the shaft through hole 41 to the other end of the spiral guide groove 42 away from the shaft through hole 41.

[0031] The spiral guide groove 42 is arranged close to the edge of the guide cam 4. The size of the spiral guide groove 42 around the area determines the size of the guide cam 4. In the utility model, the guide groove is arranged in a spiral shape. Compared with the circular guide groove, the spiral guide groove 42 has a smaller surrounding area, thereby reducing the size of the guide cam 4 and the volume of the feeding device.

[0032] The spiral guide groove 42 comprises a workpiece overturning section 421 and a suction head resetting section 422. One end of the workpiece overturning section 421 is close to the feeding position 3, and the other end of the workpiece overturning section 421 is close to the discharging position. The one end of the workpiece overturning section 421 close to the discharging position is connected with one end of the suction head resetting section 422, and the other end of the suction head resetting section 422 is close to the shaft through hole 41. The workpiece overturning section 421 is a semicircular arc-shaped groove with a constant curvature radius. When the sliding part 241 slides in the workpiece overturning section 421, the suction head 23 sucks the workpiece. Since the curvature radius of the workpiece overturning section 421 is constant, the suction head base 24 will only rotate under the driving of the feeding motor 1, and the suction head base 24 will not translate relative to the unit blade 21, which is conducive to the stable suction of the workpiece by the suction head 23.

[0033] When the sliding part 241 slides in the suction head resetting section 422, the suction head 23 does not suck the workpiece. The curvature radius of the spiral guide groove 42 of the suction head resetting section 422 gradually decreases from the one end connected with the workpiece overturning section 421 to the shaft through hole 41, so that the suction head base 24 is closer and closer to the center of the feeding impeller 2, and the force arm and the moment of the suction head base 24 when rotating are reduced, thereby making the feeding mechanism more stable when operating.

[0034] The feeding mechanism further comprises a rack 6, and the feeding motor 1 is installed on the rack 6 through a motor support 61. The guide cam 4 is fixedly connected with the motor support 61 through a cam support 62. Specifically, the rack 6 extends in the vertical direction. The front end of the feeding motor 1 is provided with an output shaft, and the rear end of the feeding motor 1 is fixedly connected with the rack 6 through the motor support 61. The guide cam 4 is located in front of the feeding motor 1. The cam support 62 comprises a first mounting plate 621 and a second mounting plate 622 fixedly connected with the first mounting plate 621 in the vertical direction. The first mounting plate 621 is provided with a motor mounting hole for the feeding motor 1 to pass through, and the rear end of the cam support 62 is fixedly connected with the front end of the first mounting plate 621. The second mounting plate 622 fixedly connects the top of the first mounting plate 621 with the motor support 61.

[0035] The driving mechanism 5 comprises a push-pull cylinder 51 and a hooking and pulling component 52 for hooking the sliding part 241. The power output end of the push-pull cylinder 51 is a piston rod 511. The piston rod 511 is connected with the hooking and pulling component 52 through a transmission assembly.

[0036] The feeding mechanism further comprises a cylinder support 53, and the push-pull cylinder 51 is installed on the cylinder support 53. The cylinder support 53 is connected with the edge of the cam support 62. Specifically, the cylinder support 53 is fixedly connected with the right edge of the first mounting plate 621.

[0037] The transmission assembly comprises an L-shaped connecting piece 54 and a push-pull guide rail 55 parallel to the piston rod 511.

[0038] A sensor 57 is arranged around the loading position 3 for checking the suction head 23, and when the sensor 57 detects that the suction head 23 reaches a specified position, the suction head 23 is started to suck the workpiece at the loading position 3.

[0039] The workpiece is flipped by 180 degrees in the following process: first, one of the unit blades 21 of the loading mechanism is close to the loading position 3, and when the sliding part 241 of the unit blade 21 is located at one end of the workpiece flipping section 421 close to the loading position 3, the suction head 23 sucks the workpiece on the loading position 3.

[0040] Then the suction head 23 stops sucking the workpiece, and other mechanisms take away the flipped workpiece.

[0041] Then the suction head 23 stops sucking the workpiece, and other mechanisms take away the flipped workpiece.

[0042] Then the sliding part 241 slides to the reset opening 43, the hooking and pulling component 52 hooks the sliding part 241, finally, the cylinder pulls the first connecting part 541 outward, so that the sliding part 241 is pulled to one end of the workpiece flipping section 421 close to the loading position 3, and the suction head base 24 is reset as a whole.

[0043] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation or direct or indirect application in other related technical fields based on the content of the present application specification and drawings are also included in the patent protection scope of the present application.

Claims

1. A workpiece-flipping loading mechanism, characterized in that, The device includes a feeding motor (1) and a feeding impeller. The output shaft of the feeding motor (1) is connected to the center of the feeding impeller (2). The feeding impeller (2) includes multiple unit blades (21) evenly arranged in the circumference. Each unit blade (21) is provided with a suction head (23) for picking up workpieces. The outer periphery of the feeding impeller (2) is used to store the workpieces at the feeding position (3) and the unloading position. The suction head (23) is used to pick up the workpieces at the feeding position (3). The feeding impeller (2) is driven by the feeding motor (1) to transfer the workpieces at the feeding position (3) to the unloading position.

2. The workpiece flipping feeding mechanism according to claim 1, characterized in that, It also includes a guide cam (4), which has a shaft through hole (41) through which the output shaft of the feeding motor (1) passes, and a vortex-shaped guide groove (42) around the shaft through hole (41). One end of the vortex-shaped guide groove (42) is close to the shaft through hole (41), and the other end gradually moves away from the shaft through hole (41) to form a vortex structure. The two ends of the vortex-shaped guide groove (42) are connected through a reset opening (43). The unit blade (21) is provided with a suction head guide rail (22) and a suction head base (24) for mounting the suction head (23). 24) The slider is slidably connected to the suction head guide rail (22), which extends from the center of the feeding impeller (2) to the outer periphery. The suction head base (24) is provided with a sliding part (241) for slidably connecting with the vortex-shaped guide groove (42). The guide cam (4) is provided with a drive mechanism (5) near the reset opening (43) on its outer periphery. The drive mechanism (5) is used to push the sliding part (241) located at one end of the vortex-shaped guide groove (42) near the shaft through hole (41) to one end of the vortex-shaped guide groove (42) away from the shaft through hole (41).

3. The workpiece-flipping feeding mechanism according to claim 2, characterized in that, The vortex-shaped guide groove (42) is located near the edge of the guide cam (4).

4. The workpiece flipping feeding mechanism according to claim 2, characterized in that, The vortex-shaped guide groove (42) includes a workpiece flipping section (421) and a suction head reset section (422). One end of the workpiece flipping section (421) is close to the loading position (3), and the other end of the workpiece flipping section (421) is close to the unloading position. The end of the workpiece flipping section (421) close to the unloading position is connected to one end of the suction head reset section (422), and the other end of the suction head reset section (422) is close to the shaft through hole (41). The workpiece flipping section (421) is a semi-circular arc-shaped groove with a constant radius of curvature. The radius of curvature of the vortex-shaped guide groove (42) of the suction head reset section (422) gradually decreases from the end connected to the workpiece flipping section (421) toward the shaft through hole (41).

5. The workpiece flipping feeding mechanism according to claim 2, characterized in that, It also includes a frame (6), the feeding motor (1) is mounted on the frame (6) via a motor bracket (61), and the guide cam (4) is fixedly connected to the motor bracket (61) via a cam bracket (62).

6. The workpiece flipping feeding mechanism according to claim 5, characterized in that, The drive mechanism (5) includes a push-pull cylinder (51) and a hook-pull component (52) for hooking the sliding part (241). The power output end of the push-pull cylinder (51) is a piston rod (511), and the piston rod (511) is connected to the hook-pull component (52) through a transmission assembly.

7. The workpiece flipping feeding mechanism according to claim 6, characterized in that, It also includes a cylinder bracket (53), on which the push-pull cylinder (51) is mounted, and the cylinder bracket (53) is connected to the edge of the cam bracket (62).

8. The workpiece flipping feeding mechanism according to claim 7, characterized in that, The transmission assembly includes an L-shaped connector (54) and a push-pull guide rail (55) parallel to the piston rod (511). The L-shaped connector (54) includes a first connecting part (541) and a second connecting part (542) perpendicularly connected to the first connecting part (541). The first connecting part (541) is perpendicularly connected to the piston rod (511). One end of the push-pull guide rail (55) is connected to the second connecting part (542), and the other end of the push-pull guide rail (55) is connected to the hook member (52). The cylinder bracket (53) is fixedly connected to a guide block (56). The guide block (56) is provided with a guide groove. The push-pull guide rail (55) is slidably connected to the guide groove. The reset opening (43) is a straight opening and is parallel to the piston rod (511).

9. The workpiece flipping feeding mechanism according to claim 1, characterized in that, The feeding position (3) is surrounded by a sensor (57) for checking the suction head (23).

Images