Four-station rotary feeding device

Abstract

The utility model discloses a four-station rotary feeding device, and belongs to the technical field of rotary feeding. A four-station rotary feeding device comprises a rotary disc which has the rotating capacity. A plurality of material racks are arranged on the rotary table, and each material rack is provided with a storage assembly capable of sliding up and down; the middle part of the turntable is hollowed out, and a manipulator assembly is arranged in the hollowed-out part; the manipulator assembly is arranged corresponding to at least one material rack; a rotating air cylinder is arranged at the front end of the manipulator assembly, a grabbing assembly is arranged at the lower end of the rotating air cylinder, and the middle of the grabbing assembly is detachably connected with the lower end of the rotating air cylinder. And grabbing pieces are arranged at the two ends of the grabbing assembly correspondingly, so that the grabbing assembly grabs two materials on the material frame in a rotating mode. According to the multi-station conveying device, materials can be rapidly and accurately conveyed among a plurality of different stations, so that the production efficiency and the product quality are improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the rotating feeding technical field, more specifically, relate to a four station rotating feeding device. BACKGROUND

[0002] At present, the feeding mode on the market, most of them are through artificial delivery or linear feeding mode, that is, through the feeding device to stack them together, and then through manual taking, complete the discharging process.

[0003] However, with the passage of time, workers repeat the same action mechanically, prone to physical exhaustion injury, and once the speed of taking is not timely, will lead to the material that has been stacked to return to the station, be stacked again, make the material become messy, and subsequent arrangement is very inconvenient, need to spend a lot of time. At the same time, the linear feeding efficiency is low, which cannot accurately and quickly convey the material. Lead to the subsequent cutting work efficiency also has declined, and further influence the efficiency of the whole work line. INNOVATION CONTENT

[0004] The utility model provides a four station rotating feeding device, it can realize the fast, accurate transmission of material between multiple different stations, thereby improving production efficiency and product quality.

[0005] The four station rotating feeding device of the utility model, including the rotating disc, the rotating disc has the ability of rotation, a plurality of material racks are arranged on the rotating disc, the material rack is provided with the article placing assembly that can slide up and down, the middle part of the rotating disc is hollow, and the mechanical hand assembly is arranged in the hollow, the mechanical hand assembly is arranged at least with one material rack, the front end of the mechanical hand assembly is provided with the rotary air cylinder, the rotary air cylinder lower end gripping assembly, the middle part of the gripping assembly is detachably connected with the lower end of the rotary air cylinder, the both ends of the gripping assembly are provided with gripping pieces, so that the gripping assembly can grip two materials on the material rack through the rotary mode.

[0006] As a further improvement of the utility model, it further includes a fixed frame, the fixed frame is rectangular, a layer of chassis is arranged at the lower end of the fixed frame, the chassis is provided with a plurality of rod members fixedly connected with the four wall bodies of the fixed frame, the chassis is provided with a fixed plate from the middle part to one side end, and the fixed plate is detachably connected with the plurality of rod members of the chassis.

[0007] As a further improvement of the utility model, the one side top end to the bottom bracket upper end of the fixed frame is provided with a discharging frame, the discharging frame is located at one side of the fixed frame, the other side of the fixed frame except the discharging frame is provided with a material placing frame, the material placing frame is provided with openable door plate, and the door plate and the edge of the material placing frame are detachably rotatably connected, the bottom end of the fixed frame is provided with a trundle at the corner, the trundle has the ability of rolling, and the trundle and the bottom end of the fixed frame are detachably connected.

[0008] As a further improvement of the utility model, the rotary disc and the fixed plate are detachably connected, the inner circle of the rotary disc is provided with a rotary disc fixing ring, the rotary disc fixing ring and the fixed plate are detachably connected, the outer periphery of the rotary disc fixing ring is provided with a plurality of uniform rotary disc ball bearings, the rotary disc ball bearings and the outer periphery of the rotary disc fixing ring are rolling abutted, the outer periphery of the rotary disc ball bearing is provided with a rotary disc rotating ring, the upper end surface of the rotary disc rotating ring and the lower end surface of the rotary disc are detachably connected, the outer edge of the rotary disc rotating ring is provided with uniform gear grooves, the gear grooves are provided with mutually matched rotary disc pinions on one side, the lower end of the rotary disc pinion is provided with a backing plate, the backing plate and the fixed plate are detachably connected, the lower end of the backing plate is connected with a driving assembly, and the driving assembly is connected with the rotary disc pinion.

[0009] As a further improvement of the utility model, the material placing assembly comprises a lifting support, the lifting support is located at the edge corner end of each material shelf, and the lifting support and the material shelf are integrally made, each lifting support is provided with a corresponding linear guide rail, and each linear guide rail is oppositely arranged towards the middle part of the material shelf, the linear guide rails arranged on the same side are provided with lifting support plates, the lifting support plates are synchronously and slidably connected with the two linear guide rails on the same side, and the two opposite lifting support plates in each material shelf are provided with abutting plates which extend towards the middle part of the material shelf, the abutting plates are provided with lifting plates, and the lifting plates and the abutting plates are detachably connected.

[0010] As a further improvement of the utility model, the mechanical hand assembly and the fixed plate are detachably connected; the mechanical hand assembly comprises a mechanical hand stand column arranged vertically, a mechanical hand base is arranged at the bottom end of the mechanical hand stand column, and the mechanical hand base is detachably connected with the fixed plate; a mechanical hand support is arranged at one end of the upper end of the mechanical hand stand column in a horizontal direction, and the mechanical hand support is fixedly connected with the upper end of the mechanical hand stand column; a cylinder is arranged at one end of the mechanical hand support close to the discharging frame, the cylinder is arranged towards the lower end in the vertical direction, and the cylinder is detachably connected with the front end of the mechanical hand support; a cylinder gasket is arranged at the lower end of the cylinder, and the cylinder gasket is coupled with the cylinder; a rotary cylinder is arranged at the lower end of the cylinder gasket, the rotary cylinder is coupled with the cylinder gasket, a rotating head is arranged at the lower end of the rotary cylinder, and the rotary cylinder drives the rotating head; a connecting block is connected to the lower end of the rotating head, the rotating head is detachably connected with the connecting block, and the connecting block is indirectly detachably connected with the rotary cylinder.

[0011] As a further improvement of the utility model, the grabbing assembly comprises a rotary support, and the middle part of the rotary support is detachably connected with the rotary cylinder; first and second connecting frames are arranged at the two ends of the rotary support respectively, the first connecting frame is detachably connected with the rotary support, and the second connecting frame is detachably connected with the rotary support; the first and second connecting frames are arranged perpendicularly to the direction of the rotary support.

[0012] As a further improvement of the utility model, the grabbing component comprises a plurality of suction disc frames, and the plurality of suction disc frames are respectively located at the two ends of the first and second connecting frames; the suction disc frames are detachably connected with the corresponding first and second connecting frames respectively; a plurality of vacuum suction discs are arranged on the suction disc frames.

[0013] As a further improvement of the utility model, the front end of the mechanical hand assembly is provided with a lifting mechanism; the lifting mechanism comprises a lifting connecting seat arranged at the bottom end, a lifting base is arranged at the lower end of the lifting connecting seat, the lifting base is detachably connected with the fixed plate, and the lifting connecting seat is detachably connected with the lifting base; a lifting motor is detachably connected to the upper end of the lifting connecting seat, a lifting guide rail rod is arranged at the front end of the lifting motor, and the lifting motor is electrically connected with the lifting guide rail rod.

[0014] As a further improvement of the utility model, the lifting guide rail rod and the mechanical hand assembly are provided with a lifting bracket in the corresponding direction, the lifting bracket is fixedly connected with the guide rail in the lifting guide rail rod; a supporting plate is protrusively arranged at one end of the lifting bracket towards the discharging frame, and the supporting plate is always arranged at the lower end of the placing assembly.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The scheme sets multiple material racks with vertical sliding capability in the rotating disc, realizes multi-station feeding through the multiple material racks, greatly improves the feeding speed, saves the feeding time, and speeds up the production efficiency. Meanwhile, a material clamping device is arranged at the end of the discharging frame, and the material clamping device can rotate to grab two materials. When one material is grabbed, the material clamping device is rotated by 180 degrees to grab the material again through the other end of the material clamping device, greatly improving the precision of feeding, improving the product quality, and improving the speed of grabbing the material. Meanwhile, the gear matching part arranged at the bottom of the rotating disc can realize accurate positioning of the station through gear rotation transmission, preventing deviation. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0018] Figure 2 It is a three-dimensional structure schematic view of the utility model without a fixed frame;

[0019] Figure 3 It is a three-dimensional structure schematic view of the utility model Figure 2 It is an enlarged structure schematic view of position A in the utility model;

[0020] Figure 4 It is a three-dimensional structure schematic view of a local part of the utility model;

[0021] Figure 5 It is an enlarged structure schematic view of position B in the utility model; Figure 4

[0022] Figure 6 It is a plane structure schematic view of the bottom of the utility model;

[0023] Figure 7 It is a side view structure schematic view of a single station of the utility model.

[0024] Mark explanation in the drawing:

[0025] Fixed frame 1, base frame 11, fixed plate 111, discharging frame 12, material placing frame 13, door plate 131, caster 14, mechanical hand assembly 2, mechanical hand stand 21, mechanical hand base 211, mechanical hand support 22, air cylinder 23, air cylinder gasket 231, rotary air cylinder 24, connecting block 241, rotary support 25, first connecting frame 251, second connecting frame 252, suction disc support 26, vacuum suction disc 261, rotating disc 3, rotating disc fixing ring 31, rotating disc ball 311, rotating disc rotating ring 32, gear slot 321, rotating disc pinion 33, backing plate 34, driving assembly 35, material rack 4, lifting support 41, linear guide rail 411, lifting support plate 412, blocking piece 413, lifting plate 42, lifting mechanism 5, lifting connecting base 51, lifting base 511, lifting motor 52, lifting guide rail rod 53, lifting bracket 54, material 6.​ DETAILED DESCRIPTION

[0026] Specific embodiment one: please refer to Figures 1-7 A four-station rotary feeding device, comprising a fixed frame 1, the fixed frame 1 is placed in the rotary feeding device, the fixed frame 1 is preferably rectangular. The lower end of the fixed frame 1 is provided with a layer of chassis 11, the chassis 11 is provided with a plurality of rod members fixedly connected with the four wall bodies of the fixed frame 1. The chassis 11 is provided with a fixed plate 111 from the middle to one side end, the fixed plate 111 is detachably connected with the plurality of rod members of the chassis 11. The top end of one side of the fixed frame 1 to the upper end of the chassis 11 is provided with a discharging frame 12, the discharging frame 12 is located on one side of the fixed frame 1. The side of the fixed frame 1 except the discharging frame 12 is provided with a material placing frame 13, the material placing frame 13 is provided with an openable door plate 131, the door plate 131 is detachably rotatably connected with the edge of the material placing frame 13. The door plate 131 is provided with a window, so as to observe the position state of the material in the delivery process. The bottom end of the fixed frame 1 is provided with casters 14 at the corners, the casters 14 have the ability to roll, and the casters 14 are detachably connected with the bottom end of the fixed frame 1.

[0027] The upper end of the middle fixed plate 111 is provided with a mechanical hand assembly 2, which is detachably connected with the fixed plate 111 and placed in the fixed frame 1. The mechanical hand assembly 2 comprises a vertical mechanical hand column 21, the bottom end of which is provided with a mechanical hand base 211, which is detachably connected with the fixed plate 111. The upper end of the mechanical hand column 21 is provided with a mechanical hand support 22 towards one end of the discharging frame 12, which is fixedly connected with the upper end of the mechanical hand column 21. The mechanical hand support 22 is provided with a cylinder 23 near one end of the discharging frame 12, which is provided towards the vertical lower end and detachably connected with the front end of the mechanical hand support 22. The lower end of the cylinder 23 is provided with a cylinder gasket 231, which is coupled with the cylinder 23. The lower end of the cylinder gasket 231 is provided with a rotary cylinder 24, which is coupled with the cylinder gasket 231. The lower end of the rotary cylinder 24 is provided with a rotating head, which is driven by the rotary cylinder 24 to have the ability of rotation. The rotating head is connected with a connecting block 241, which is detachably connected with the rotating head and indirectly detachably connected with the rotary cylinder 24. The lower end of the connecting block 241 is provided with a rotary support 25, the middle part of which is detachably connected with the connecting block 241 and provided towards the discharging frame 12. The two ends of the rotary support 25 are respectively provided with a first connecting frame 251 and a second connecting frame 252, which are detachably connected with the rotary support 25. The first connecting frame 251 and the second connecting frame 252 are both provided perpendicular to the direction of the rotary support 25. The two ends of the first connecting frame 251 and the second connecting frame 252 are both provided with corresponding suction disc frames 26, which are detachably connected with the corresponding first connecting frame 251 and the second connecting frame 252. The suction disc frames 26 are both provided with a plurality of vacuum suction discs 261, so that the two ends of the rotary support 25 can grasp the processed materials by the vacuum suction discs. The suction disc frames 26 grasp the materials 6 with the lower end by the plurality of vacuum suction discs 261.

[0028] The outer periphery of the mechanical hand assembly 2 is sleeved with a rotating disc 3, the rotating disc 3 is detachably connected with the fixed plate 111, and the mechanical hand base 211 is located in the middle part of the rotating disc 3. The middle part of the rotating disc 3 is hollow, so that the mechanical hand assembly 2 is placed in the hollow part of the rotating disc 3 and connected with the fixed plate 11. The inner ring of the rotating disc 3 is provided with a rotating disc fixing ring 31, and the rotating disc fixing ring 31 is detachably connected with the fixed plate 111. The outer periphery of the rotating disc fixing ring 31 is provided with a plurality of uniform rotating disc ball bearings 311, and the rotating disc ball bearings 311 are in rolling abutment with the outer periphery of the rotating disc fixing ring 31. The outer periphery of the rotating disc ball bearing 311 is provided with a rotating disc rotating ring 32, so that the rotating disc rotating ring 32 can abut against the rotating disc ball bearing 311 to rotate. The upper end face of the rotating disc rotating ring 32 is detachably connected with the lower end face of the rotating disc 3, and the outer edge of the rotating disc rotating ring 32 is provided with uniform tooth grooves 321, and the tooth grooves 321 are provided with mutually matched rotating disc pinions 33 on one side, so that the rotating disc pinions 33 can drive the rotating disc rotating ring 32 to rotate through the tooth grooves 321. The lower end of the rotating disc pinion 33 is provided with a backing plate 34, and the backing plate 34 is detachably connected with the fixed plate 111. The lower end of the backing plate 34 is connected with a driving assembly 35, and the driving assembly 35 is connected with the rotating disc pinion 33, so that the driving assembly 35 drives the rotating disc pinion 33 to rotate. The driving assembly 35 includes a motor and a speed reducer, and the driving mode is prior art, which will not be described here.

[0029] The end faces of the rotating disc 3 in four directions perpendicular to each other are provided with material shelves 4, and the discharge frame 12 and a plurality of material placing frames 13 correspond to the material shelves 4 respectively. The edge angle end of each material shelf 4 is provided with a lifting support 41, and the lifting support 41 is integrally made with the material shelf 4. A corresponding straight line guide rail 411 is arranged on each lifting support 41, and each straight line guide rail 411 is oppositely arranged towards the middle part of the material shelf 4. The straight line guide rails 411 arranged on the same side are provided with lifting support plates 412, and the lifting support plates 412 are synchronously and slidingly connected with the two straight line guide rails 411 on the same side. The two opposite lifting support plates 412 in each material shelf 4 are provided with abutting plates extending towards the middle part of the material shelf 4, and the abutting plates are provided with lifting plates 42, and the lifting plates 42 are detachably connected with the abutting plates, so that the lifting plates 42 are indirectly and slidingly connected with the straight line guide rails 411 by the two lifting support plates 412 on both sides. The top end of each lifting support 41 is provided with a blocking piece 413, and the blocking piece 413 is detachably connected with each straight line guide rail 411 respectively, so that the blocking piece 413 blocks the sliding track along the straight line guide rail 411.

[0030] The front end of the mechanical arm assembly 2 is provided with a lifting mechanism 5, which is arranged towards the discharging frame 12, and the lifting mechanism 5 is arranged in the hollow part of the rotating disc 3. The lifting mechanism 5 comprises a lifting connecting seat 51 arranged at the bottom end, and the lower end of the lifting connecting seat 51 is provided with a lifting base 511 which is detachably connected with the fixed plate 111, and the lifting connecting seat 51 is detachably connected with the lifting base 511. The upper end of the lifting connecting seat 51 is detachably connected with a lifting motor 52, and the front end of the lifting motor 52 is provided with a lifting guide rail rod 53 which is electrically connected with the lifting motor 52, so as to control the up-down movement of the guide rail in the lifting guide rail rod 53. The lower end of the lifting guide rail rod 53 is arranged close to the edge of the discharging frame 12 relative to the lifting connecting seat 51, and the top end of the lifting guide rail rod 53 extends to the lower end of the mechanical arm support 22. The end of the lifting guide rail rod 53 towards the discharging frame 12 is provided with a lifting bracket 54 which is fixedly connected with the guide rail in the lifting guide rail rod 53, so as to drive the lifting bracket 54 to move up and down when the guide rail in the lifting guide rail rod 53 moves up and down. The end of the lifting bracket 54 towards the discharging frame 12 is provided with a supporting plate which protrudes, and the supporting plate is always arranged at the lower end of the lifting plate 42, so as to drive the lifting bracket 54 to lift or drop the lifting plate 42.

[0031] Working principle:

[0032] When the utility model is used, the driving assembly drives the rotating disc pinion gear and the rotating disc rotating ring to perform gear transmission movement, and the bottom rotating disc coaxial with the rotating disc rotating ring starts to rotate. When reaching the expected position, the rotating disc pinion gear stops working, the lifting motor starts working, the lifting bracket drives the lifting plate and the material on the plate to move upward in a straight line, when reaching the expected position, the lifting motor stops working, the air cylinder starts working, the vacuum chuck lifts the workpiece, then the rotary air cylinder starts working, the rotary support starts to drive the chuck frame to rotate, rotates 180 degrees to reach the expected position, the air cylinder stops working, the vacuum chuck puts down the workpiece, and at the same time, the lifting motor starts working, the lifting bracket moves downward to drive the bracket plate to return to the original position. The above-mentioned behavior is repeated until the control system issues a stop command.

Claims

1. A four-station rotary feeding device, characterized in that: it comprises a rotating disc (3) provided with rotating capability; a plurality of material racks (4) are arranged on the rotating disc (3), and each of the material racks (4) is provided with a placing assembly capable of sliding up and down; the middle part of the rotating disc (3) is hollow, and a mechanical hand assembly (2) is arranged in the hollow part; the mechanical hand assembly (2) is arranged in correspondence with at least one material rack (4); a rotary cylinder (24) is arranged at the front end of the mechanical hand assembly (2), and a grabbing assembly is arranged at the lower end of the rotary cylinder (24); the middle part of the grabbing assembly is detachably connected with the lower end of the rotary cylinder (24); grabbing pieces are arranged at both ends of the grabbing assembly, so that the grabbing assembly can grab two materials on the material rack (4) by rotating. It also comprises a fixed frame (1) which is rectangular, and a layer of base frame (11) is arranged at the lower end of the fixed frame (1); a plurality of rod members are fixedly connected with the four wall bodies of the fixed frame (1); a fixed plate (111) is arranged on one side of the base frame (11) from the middle part to the end; and the fixed plate (111) is detachably connected with the plurality of rod members of the base frame (11).

2. A four-station rotary feed device according to claim 1, characterized in that: A discharging frame (12) is arranged on the upper end of one side of the base frame (11) of the fixed frame (1); material placing frames (13) are arranged on the other three sides of the fixed frame (1) except the side of the discharging frame (12); openable door plates (131) are arranged in the material placing frames (13); the door plates (131) are detachably and rotatably connected with the edges of the material placing frames (13); and casters (14) are arranged at the corners of the bottom end of the fixed frame (1); the casters (14) are provided with rolling capability and are detachably connected with the bottom end of the fixed frame (1).

3. A four station rotary feed apparatus as claimed in claim 2 wherein: The rotating disc (3) is detachably connected with the fixed plate (111); a rotating disc fixing ring (31) is arranged on the inner circle of the rotating disc (3); the rotating disc fixing ring (31) is detachably connected with the fixed plate (111); a plurality of uniform rotating disc balls (311) are arranged on the outer periphery of the rotating disc fixing ring (31); the rotating disc balls (311) roll against the outer periphery of the rotating disc fixing ring (31); a rotating disc rotating ring (32) is arranged on the outer periphery of the rotating disc balls (311); the upper end surface of the rotating disc rotating ring (32) is detachably connected with the lower end surface of the rotating disc (3); uniform tooth grooves (321) are formed on the outer edge of the rotating disc rotating ring (32); rotating disc pinions (33) are arranged on one side of the tooth grooves (321); a pad plate (34) is arranged at the lower end of the rotating disc pinions (33); the pad plate (34) is detachably connected with the fixed plate (111); a driving assembly (35) is connected with the lower end of the pad plate (34); and the driving assembly (35) is connected with the rotating disc pinions (33).

4. A four-station rotary feed device according to claim 2, characterized in that: ​ 5. A four-station rotary feed device according to claim 1, characterized in that: The storage assembly comprises a lifting support (41) located at the edge corner end of each material shelf (4), and the lifting support (41) is integrally formed with the material shelf (4); each lifting support (41) is provided with a corresponding linear guide rail (411), and each linear guide rail (411) is oppositely arranged towards the middle part of the material shelf (4); the linear guide rails (411) arranged on the same side are each provided with a lifting support plate (412), and the lifting support plate (412) is synchronously and slidably connected with the two linear guide rails (411) on the same side; the two opposite lifting support plates (412) in each material shelf (4) are each provided with an abutting plate extending towards the middle part of the material shelf (4), and the abutting plate is provided with a lifting plate (42), and the lifting plate (42) is detachably connected with the abutting plate; the top end of each lifting support (41) is provided with a blocking piece (413), and the blocking piece (413) is detachably connected with each linear guide rail (411).

6. A four station rotary feed apparatus as claimed in claim 2, wherein: The mechanical hand assembly (2) is detachably connected with the fixed plate (111); the mechanical hand assembly (2) comprises a vertical mechanical hand stand (21), the bottom end of the mechanical hand stand (21) is provided with a mechanical hand base (211), the mechanical hand base (211) is detachably connected with the fixed plate (111); the upper end of the mechanical hand stand (21) is provided with a mechanical hand support (22) towards one end of the horizontal direction, and the mechanical hand support (22) is fixedly connected with the upper end of the mechanical hand stand (21); one end of the mechanical hand support (22) close to the discharging frame (12) is provided with a gas cylinder (23), the gas cylinder (23) is provided towards the lower end of the vertical direction, and the gas cylinder (23) is detachably connected with the front end of the mechanical hand support (22); the lower end of the gas cylinder (23) is provided with a gas cylinder gasket (231), and the gas cylinder gasket (231) is coupled with the gas cylinder (23); the lower end of the gas cylinder gasket (231) is provided with a rotary gas cylinder (24), and the rotary gas cylinder (24) is coupled with the gas cylinder gasket (231), and the lower end of the rotary gas cylinder (24) is provided with a rotating head, and the rotary gas cylinder (24) drives the rotating head; the rotating head is connected with a connecting block (241), the rotating head is detachably connected with the connecting block (241), and the connecting block (241) is indirectly detachably connected with the rotary gas cylinder (24).

7. A four-station rotary feed device according to claim 1, characterized in that: The grabbing assembly comprises a rotating support (25), and the middle part of the rotating support (25) is detachably connected with the rotary gas cylinder (24); the two ends of the rotating support (25) are respectively provided with a first connecting frame (251) and a second connecting frame (252), the first connecting frame (251) is detachably connected with the rotating support (25), and the second connecting frame (252) is detachably connected with the rotating support (25); the first connecting frame (251) and the second connecting frame (252) are both perpendicular to the direction of the rotating support (25).

8. A four station rotary feed apparatus as claimed in claim 7 wherein: The grabbing piece comprises a plurality of suction disc racks (26), which are respectively located at two ends of the first connecting rack (251) and the second connecting rack (252); the suction disc racks (26) are respectively detachably connected with the corresponding first connecting rack (251) and the second connecting rack (252); and a plurality of vacuum suction discs (261) are arranged on the suction disc racks (26).

9. A four station rotary feed apparatus as claimed in claim 2, wherein: The front end of the mechanical arm assembly (2) is provided with a lifting mechanism (5); the lifting mechanism (5) comprises a lifting connecting seat (51) arranged at the bottom end, a lifting base (511) arranged at the lower end of the lifting connecting seat (51), a fixing plate (111) detachably connected with the lifting base (511), and a lifting motor (52) detachably connected with the upper end of the lifting connecting seat (51); the front end of the lifting motor (52) is provided with a lifting guide rail rod (53), and the lifting motor (52) is electrically connected with the lifting guide rail rod (53).

10. A four station rotary feed apparatus as claimed in claim 9 wherein: The lifting guide rail rod (53) and the mechanical arm assembly (2) are provided with a lifting bracket (54) in the corresponding direction; the lifting bracket (54) is fixedly connected with the guide rail in the lifting guide rail rod (53); and the end of the lifting bracket (54) protruding towards the discharging frame (12) is provided with a supporting plate, and the supporting plate is always arranged at the lower end of the article placing assembly.

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