CN213894341U - Automatic sorting machine for scaffold upright rod sleeves - Google Patents

Abstract

The utility model provides a scaffold pole setting sleeve automatic separation machine, includes, main body frame and installs control box and the electromagnetism pneumatic valve on main body frame, its characterized in that: install near the left side top in main body frame's front and snatch material feeding unit, main body frame's intermediate position is installed and is selected separately positioner, select separately positioner and be located and snatch material feeding unit under, be equipped with on main body frame's right side and be used for placing the telescopic feed bin of work piece, conveyer installs the rear side upper portion position at main body frame, hoisting device installs between feed bin and conveyer, conveyer is connected to slope support one end, other end connection selects separately positioner. The utility model discloses a hoisting device, conveyer, sorting positioning device and snatch material feeding unit draw, convey, select separately the assigned position after the location to the work piece sleeve in the feed bin, this sorter combines other automatic device, realizes scaffold frame pole setting full automated production, reduces workman's intensity of labour, improves production efficiency.

Description

Automatic sorting machine for scaffold upright rod sleeves

Technical Field

The utility model relates to an automatic sorting unit, especially a telescopic automatic feeding of scaffold frame pole setting, sorting unit.

Background

The scaffold pole setting is welded some needs one end welding sleeve, has the hole of two symmetries on the pole setting pipe. The sleeve is provided with four symmetrical holes, two holes are bolt holes, the other two holes are observation holes, the distances from the holes to the two end faces are different, the welded ends of the sleeve and the upright rod circular tube are required to be consistent, and the observation holes in the sleeve and the holes in the circular tube are welded together and are on the same straight line.

At present, the most advanced technology for automatically sorting the vertical rod sleeves of the known scaffold is that the sleeves need to be sorted out from the left and the right by manpower and then are put into a storage bin for automatic positioning, but the method increases the labor intensity of workers and has low production efficiency.

Disclosure of Invention

To the deficiencies of the above technical problem, an object of the utility model is to provide a scaffold pole sleeve automatic separation machine.

The utility model provides a scaffold pole setting sleeve automatic separation machine, includes, main body frame and installs control box and the electromagnetism pneumatic valve on main body frame, its characterized in that: install near the left side top in main body frame's front and snatch material feeding unit, main body frame's intermediate position is installed and is selected separately positioner, select separately positioner be located and snatch material feeding unit under, be equipped with on main body frame's right side and be used for placing the telescopic feed bin of work piece, conveyer installs the rear side upper portion position at main body frame, hoisting device installs between feed bin and conveyer, conveyer is connected to slope support one end, and other end connection selects separately positioner.

The lifting device comprises a speed reducer, chain wheels B, chain wheels C, hanging plates, chains B, chain wheel shafts B, chains C and a lifting motor, wherein the two chain wheel shafts B are respectively fixed at the upper end and the lower end of the main body frame, the three chains B arranged in parallel are respectively hung on the chain wheels of the two chain wheel shafts B, each chain B is uniformly provided with a plurality of hanging plates, a chain wheel C is embedded on a chain wheel shaft B at the lower end, the chain wheel C is connected with the chain wheel B through a chain C, the chain wheel B is fixed on a shaft of the speed reducer, the lifting motor is connected with the speed reducer, the speed reducer is arranged at the bottom of the main body frame, the lifting motor is electrically connected with the control box through a cable, the motor drives the speed reducer to rotate so as to drive the chain wheel B to rotate, the chain wheel B drives the chain wheel C to rotate through the chain C, and then the three parallel chains B move from bottom to top, and the workpiece sleeves are lifted out of the storage bin through the hanging plates on the chains B and are conveyed into the conveying device.

The conveying device comprises a conveying motor, a square tube, a chain wheel shaft A, a chain wheel A and a proximity switch, wherein the square tube is fixed on a main body frame, chain wheel shafts A are arranged at the two ends of the square tube, two chains A arranged in parallel are hung on chain wheels of the two chain wheel shafts A, a transmission motor is arranged on one side of the square tube, a chain wheel A is fixed on the shaft of the transmission motor, the chain wheel A is meshed with a chain A, a proximity switch is fixed on the plane of the right end of the square tube, the proximity switch and the transmission motor are respectively and electrically connected with the control box through cables, the transmission motor drives the chain wheel A to rotate, thereby driving the two parallel chains A to run, conveying the workpiece sleeves falling on the two chains A from one end of the chains A to the other end, after the proximity switch senses a signal, the workpiece sleeve is pushed to the slope support through a push plate fixed on a cylinder rod of the material poking cylinder.

The slope support has certain inclination, installs the material loading cylinder below the one end of slope support, and the work piece sleeve that falls into on the slope support slides to slope support bottom along the slope, and the action is gone into to the material loading cylinder after receiving the signal, pushes up the work piece sleeve on sorting positioner.

The sorting and positioning device comprises a base, a rotary cylinder, an inductor A, a positioning cylinder A, a guide rail A, a slide block A, a right clamping cylinder, a rotary motor, a right clamping sliding plate, a centre, a sleeve support, a mold, a left clamping cylinder, an inductor B and a positioning cylinder B, wherein the base is sequentially provided with the left clamping cylinder, the rotary cylinder and two parallel guide rails A from left to right; the positioning cylinder B is provided with an inductor B, the inductor A and the inductor B are respectively electrically connected with the control box through cables, the two guide rails A are respectively provided with a sliding block A in a sliding mode, the bottom of the right clamping sliding plate is fixed on the two sliding blocks A, the upper end of the right clamping sliding plate is provided with a rotating motor, the tip is fixedly installed on the shaft of the rotating motor, a right clamping cylinder is installed on a vertical plate on the right side of the base, a cylinder rod of the right clamping cylinder is connected with the right clamping sliding plate, and the rotating motor is electrically connected with the control box through cables.

The left clamping cylinder and the right clamping cylinder act simultaneously to drive the die and the tip to clamp a workpiece sleeve falling onto the sleeve support, the workpiece sleeve is driven to rotate through the rotating motor, the positioning cylinder A and the positioning cylinder B act during rotation, and cylinder rods of the positioning cylinder A and the positioning cylinder B are ejected out.

When a cylinder rod of the positioning cylinder A is inserted into a hole of a workpiece sleeve, the sensor A senses a signal, the rotating motor stops rotating, the positioning cylinder B resets, the left clamping cylinder and the right clamping cylinder reset to release the workpiece sleeve, the rotating cylinder rotates 180 degrees to sort, and the sorted workpiece sleeve is taken away by waiting for the grabbing and feeding device.

When a cylinder rod of the positioning cylinder B is inserted into a hole of a workpiece sleeve, the sensor B senses a signal, the rotating motor stops rotating, the positioning cylinder A resets, the left clamping cylinder and the right clamping cylinder reset to release the workpiece sleeve, the rotating cylinder does not act, sorting is completed, and the sorted workpiece sleeve is taken away by waiting for the grabbing and feeding device.

The grabbing and feeding device comprises a bottom plate support, guide rails B, feeding cylinders, a sliding plate, grabbing cylinders, electromagnets and sliding blocks B, wherein the bottom plate support is fixed on a main body frame, the two sliding blocks B arranged in parallel are arranged above the bottom plate support, the guide rails B are respectively arranged on the two sliding blocks B in a sliding manner, the sliding plate is fixed on the two guide rails B, the grabbing cylinders are arranged on vertical plates of the sliding plate, the two electromagnets are respectively arranged on cylinder rods of the grabbing cylinders, the electromagnets are electrically connected with a control box through cables, the feeding cylinders are arranged on the vertical plates of the bottom plate support, the cylinder rods of the feeding cylinders are connected with the sliding plate, the grabbing cylinders move downwards to enable the electromagnets to fall onto the sorted workpiece sleeves, the workpiece sleeves are sucked through the electromagnets, at the moment, the grabbing cylinders reset, the feeding cylinders move to drive the grabbing cylinders to move to place the workpiece sleeves at specified positions, the material grabbing cylinder moves downwards again, after the material grabbing cylinder is in place, the electromagnet is powered off to loosen the sleeve, and the material grabbing cylinder and the feeding cylinder reset to wait for grabbing the next workpiece sleeve.

The utility model discloses a hoisting device, conveyer, sorting positioning device and snatch material feeding unit draw, convey, select separately the assigned position after the location to the work piece sleeve in the feed bin, this sorter combines other automatic device, realizes scaffold frame pole setting full automated production, reduces workman's intensity of labour, improves production efficiency.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a left side view of the present invention;

fig. 3 is a right side view of the present invention;

fig. 4 is a rear view of the present invention;

fig. 5 is a top view of the present invention;

fig. 6 is a front view of the sorting positioning device of the present invention;

FIG. 7 is a schematic view of the structure of the workpiece sleeve of the present invention;

fig. 8 is a top view of the sorting and positioning device of the present invention;

fig. 9 is a left side view of the sorting positioning device of the present invention;

fig. 10 is a front view of the gripping and feeding device of the present invention;

fig. 11 is a top view of the gripping and feeding device of the present invention;

fig. 12 is a side view of the gripping and feeding device of the present invention;

figure 13 is a front view of the transfer device of the present invention;

figure 14 is a side view of the transfer device of the present invention;

figure 15 is a top view of the conveyor of the present invention;

figure 16 is a side view of the lifting device of the present invention;

fig. 17 is a front view of the lifting device of the present invention.

In the figure: sorting and positioning device 1, grabbing and feeding device 2, slope support 3, material stirring cylinder 4, control box 5, push plate 6, conveying device 7, main body frame 8, feeding cylinder 9, lifting device 10, base 11, rotary cylinder 12, sensor A13, positioning cylinder A14, guide rail A15, slide block A16, right clamping cylinder 17, rotary motor 18, right clamping slide plate 19, top 20, sleeve support 21, mold 22, left clamping cylinder 23, sensor B24 and positioning cylinder B25, the device comprises a bottom plate bracket 26, a guide rail B27, a feeding cylinder 28, a sliding plate 29, a material grabbing cylinder 30, an electromagnet 31, a sliding block B32, a conveying motor 33, a square tube 34, a chain wheel shaft A35, a chain A36, a chain wheel A37, a proximity switch 38, a speed reducer 39, a chain wheel B40, a chain wheel C41, a hanging plate 42, a chain B43, a chain wheel shaft B44, a chain C45, a lifting motor 46, a bin 47, a workpiece sleeve 48 and an electromagnetic air valve 49.

Detailed Description

As shown in fig. 1, 2, 3, 4, 5 and 7, a grabbing and feeding device 2 is installed on the top of the left side of the front surface of a main body frame 8, a sorting and positioning device 1 is installed at the middle position of the main body frame 8, and the sorting and positioning device 1 is located right below the grabbing and feeding device 2. A magazine 47 for placing a workpiece sleeve 48 is provided at the right side of the main body frame 8, the transfer device 7 is installed at an upper position of the rear side of the main body frame 8, and the lift device 10 is installed between the magazine 47 and the transfer device 7. One end of the slope bracket 3 with a certain inclination angle is connected with the conveying device 7, and the other end is connected with the sorting and positioning device 1. The charging cylinder 9 is installed below one end of the slope bracket 3. The push plate 6 is fixed on the cylinder rod of the material poking cylinder 4. The electromagnetic air valves 49 are electrically connected with the control box 5 through cables, and the electromagnetic air valves 49 are respectively connected with corresponding air cylinders through air pipes.

As shown in fig. 16 and 17, the lifting device 10 includes a speed reducer 39, a sprocket B40, a sprocket C41, hanging plates 42, a chain B43, a sprocket B44, a chain C45 and a lifting motor 46, wherein two sprocket shafts B44 are respectively fixed at the upper and lower ends of the main body frame 8, three parallel chains B43 are respectively hung on the sprockets of two sprocket shafts B44, and a plurality of hanging plates 42 are uniformly installed on each chain B43. A chain wheel C41 is further inlaid on the chain wheel shaft B44 at the lower end, the chain wheel C41 is connected with a chain wheel B40 through a chain C45, the chain wheel B40 is fixed on a shaft of a speed reducer 39, a lifting motor 46 is connected with the speed reducer 39, the speed reducer 39 is installed at the bottom of the main body frame 8, and the lifting motor 46 is electrically connected with the control box 5 through a cable.

As shown in fig. 13, 14 and 15, the conveyor 7 includes a conveyor motor 33, a square tube 34, a sprocket shaft a35, a chain a36, a sprocket a37 and a proximity switch 38, the square tube 34 is fixed to the main frame 8, the sprocket shaft a35 is mounted on both ends of the square tube 34, and two parallel chains a36 are hung on the sprockets of two sprocket shafts a 35. A conveying motor 33 is installed on one side of a square pipe 34, a chain wheel A37 is fixed on the shaft of the conveying motor 33, a chain wheel A37 is meshed with a chain A36, a proximity switch 38 is fixed on the plane of the right end of the square pipe 34, and the proximity switch 38 and the conveying motor 33 are respectively and electrically connected with a control box 5 through cables.

As shown in fig. 6, 8 and 9, the sorting and positioning device 1 includes a base 11, a rotary cylinder 12, a sensor a13, a positioning cylinder a14, a guide rail a15, a slider a16, a right clamping cylinder 17, a rotary motor 18, a right clamping slide plate 19, a tip 20, a sleeve bracket 21, a mold 22, a left clamping cylinder 23, a sensor B24 and a positioning cylinder B25, wherein the base 11 is sequentially provided with the left clamping cylinder 23, the rotary cylinder 12 and two parallel guide rails a15 from left to right. The left clamping cylinder 23 is installed on the left vertical plate of the base 11, and the die 22 is fixed on the cylinder rod of the left clamping cylinder 23. The sleeve support 21 is fixed on the shaft of the rotary cylinder 12, a positioning cylinder A14 and a positioning cylinder B25 are fixed in the sleeve support 21, and an inductor A13 is installed on the positioning cylinder A14; an inductor B24 is installed on the positioning cylinder B25, and the inductor A13 and the inductor B24 are respectively and electrically connected with the control box 5 through cables. The slide blocks A16 are slidably mounted on the two guide rails A15, the bottom of the right clamping slide plate 19 is fixed on the two slide blocks A16, the upper end of the right clamping slide plate 19 is provided with the rotating motor 18, and the center 20 is fixedly mounted on the shaft of the rotating motor 18. A right clamping cylinder 17 is arranged on a vertical plate on the right side of the base 11, a cylinder rod of the right clamping cylinder 17 is connected with a right clamping sliding plate 19, and a rotating motor 18 is electrically connected with the control box 5 through a cable.

As shown in fig. 10, 11 and 12, the grabbing and feeding device 2 includes a bottom plate bracket 26, a guide rail B27, a feeding cylinder 28, a sliding plate 29, a grabbing cylinder 30, an electromagnet 31 and a sliding block B32, the bottom plate bracket 26 is fixed on the main body frame 8, two sliding blocks B32 arranged in parallel are arranged above the bottom plate bracket 26, the guide rail B27 is slidably mounted on each of the two sliding blocks B32, the sliding plate 29 is fixed on the two guide rails B27, the grabbing cylinder 30 is mounted on a vertical plate of the sliding plate 29, the two electromagnets 31 are respectively mounted on a cylinder rod of the grabbing cylinder 30, and the electromagnet 31 is electrically connected with the control box 5 through a cable. A feeding cylinder 28 is arranged on the vertical plate of the bottom plate bracket 26, and the cylinder rod of the feeding cylinder 28 is connected with a sliding plate 29.

The bin 47 is filled with the workpiece sleeves 48, the lifting motor 46 is electrically rotated to drive the speed reducer 39 to rotate so as to drive the chain wheel B40 to rotate, the chain wheel B40 drives the chain wheel C41 to rotate through the chain C45, then the three parallel chains B43 move from bottom to top, and the workpiece sleeves 48 are lifted out of the bin 47 through the hanging plates 42 on the chains B43 and fall into the chain A36 of the conveying device 7. The conveying motor 33 is electrified to rotate, the chain wheel A37 is driven to rotate, two parallel chains A36 are driven to operate, the workpiece sleeve 48 is conveyed to the other end from one end of the chain A36, the proximity switch 38 senses a signal, the material shifting cylinder 4 acts, the workpiece sleeve 48 is pushed onto the slope support 3 through the push plate 6, the workpiece sleeve 48 slides to the bottom of the slope support 3 along the slope, the material loading cylinder 9 acts after receiving the signal, the workpiece sleeve 48 is jacked onto the sleeve support 21 of the sorting and positioning device 1, the left clamping cylinder 23 and the right clamping cylinder 17 act simultaneously, the die 22 and the center 20 are driven to clamp the workpiece sleeve 48, the rotating motor 18 is electrified after clamping to drive the workpiece sleeve 48 to rotate, the positioning cylinder A14 and the positioning cylinder B25 act during rotation, and the cylinder rods of the positioning cylinder A14 and the positioning cylinder B25 are jacked out. If the cylinder rod of the positioning cylinder A14 is inserted into the hole of the workpiece sleeve 48, the sensor A13 senses a signal, the rotating motor 18 stops rotating, the positioning cylinder B25 resets, the left clamping cylinder 23 and the right clamping cylinder 17 reset to release the workpiece sleeve 48, and the rotating cylinder 12 rotates 180 degrees to finish sorting; if the cylinder rod of the positioning cylinder B25 is inserted into the hole of the workpiece sleeve 48, the sensor B24 senses a signal, the rotating motor 18 stops rotating, the positioning cylinder A14 is reset, the left clamping cylinder 23 and the right clamping cylinder 17 are reset to release the workpiece sleeve 48, the rotating cylinder 12 does not act, and sorting is completed. Waiting for the gripper feeder 2 to remove the sorted workpiece sleeves 48. After the workpiece sleeve 48 is taken away by the grabbing and feeding device 2, the rotary cylinder 12 is reset again to wait for the next sleeve to fall down. The material grabbing cylinder 30 moves downwards to enable the electromagnet 31 to fall onto the sorted workpiece sleeve 48, the electromagnet 31 is electrified to suck the workpiece sleeve 48, the material grabbing cylinder 30 resets, then the feeding cylinder 28 moves to drive the sliding plate 29 to drive the material grabbing cylinder 30 to move to place the workpiece sleeve 48 at a specified position, the material grabbing cylinder 30 moves downwards again, the electromagnet 31 is powered off to release the sleeve after the workpiece sleeve is in place, the material grabbing cylinder 30 resets, and the feeding cylinder 28 also resets to wait for grabbing the next workpiece sleeve 48.

Claims (9)

1. The utility model provides a scaffold pole setting sleeve automatic separation machine, includes, main body frame (8) and installs control box (5) and electromagnetism pneumatic valve (49) on main body frame (8), its characterized in that: install by left side top in the front of main body frame (8) and snatch material feeding unit (2), the intermediate position of main body frame (8) is installed and is selected separately positioner (1), select separately positioner (1) be located and snatch material feeding unit (2) under, be equipped with feed bin (47) that are used for placing work piece sleeve (48) on the right side of main body frame (8), conveyer (7) are installed in the rear side upper portion position of main body frame (8), hoisting device (10) are installed between feed bin (47) and conveyer (7), conveyer (7) are connected to slope support (3) one end, sorting positioner (1) is connected to the other end.

2. The automatic sorting machine for scaffold upright sleeves according to claim 1, characterized in that: the lifting device (10) comprises a speed reducer (39), a chain wheel B (40), a chain wheel C (41), hanging plates (42), a chain B (43), a chain wheel shaft B (44), a chain C (45) and a lifting motor (46), wherein the two chain wheel shafts B (44) are respectively fixed at the upper end and the lower end of a main body frame (8), the three chains B (43) arranged in parallel are respectively hung on the chain wheels of the two chain wheel shafts B (44), a plurality of hanging plates (42) are uniformly arranged on each chain B (43), one chain wheel C (41) is embedded on the chain wheel shaft B (44) at the lower end, the chain wheel C (41) is connected with the chain wheel B (40) through the chain C (45), the chain wheel B (40) is fixed on the shaft of the speed reducer (39), the lifting motor (46) is connected with the speed reducer (39), and the speed reducer (39) is installed at the bottom of the main body frame (8), lifting motor (46) are connected with control box (5) electricity through the cable, thereby motor (46) drive speed reducer (39) rotation drive sprocket B (40) and rotate, and sprocket B (40) pass through chain C (45) drive sprocket C (41) and rotate, and then make three parallel chains B (43) from the up-down motion, promote work piece sleeve (48) from feed bin (47) through link plate (42) on chain B (43) and send into conveyer (7).

3. The automatic sorting machine for scaffold upright sleeves according to claim 2, characterized in that: conveyer (7) include, conveying motor (33), square pipe (34), sprocket shaft A (35), chain A (36), sprocket A (37) and proximity switch (38), square pipe (34) are fixed on main body frame (8), sprocket shaft A (35) is installed at the both ends of square pipe (34), two parallel arrangement's chain A (36) are hung and are put on the sprocket of two sprocket shaft A (35), conveying motor (33) is installed to one side of square pipe (34), sprocket A (37) are fixed on the axle of conveying motor (33), sprocket A (37) and chain A (36) meshing, proximity switch (38) are fixed on the plane of square pipe (34) right-hand member, proximity switch (38) and conveying motor (33) be connected with control box (5) electricity through the cable respectively, conveying motor (33) drive sprocket A (37) rotatory to drive two parallel chain A (36) operation, the workpiece sleeves (48) falling onto the two chains A (36) are conveyed from one end to the other end of the chains A (36), and after a proximity switch (38) senses a signal, the workpiece sleeves (48) are pushed onto the slope support (3) through a push plate (6) fixed on a cylinder rod of the material poking cylinder (4).

4. The automatic sorting machine for scaffold upright sleeves according to claim 3, wherein: the slope support (3) have certain inclination, install material loading cylinder (9) below the one end of slope support (3), work piece sleeve (48) that fall into on slope support (3) slide down to slope support (3) bottom along the slope, material loading cylinder (9) action after receiving the signal, push work piece sleeve (48) into on sorting positioner (1).

5. The automatic sorting machine for scaffold upright sleeves according to claim 4, wherein: the sorting positioning device (1) comprises a base (11), a rotary cylinder (12), an inductor A (13), a positioning cylinder A (14), a guide rail A (15), a slide block A (16), a right clamping cylinder (17), a rotary motor (18), a right clamping sliding plate (19), a tip (20), a sleeve support (21), a mold (22), a left clamping cylinder (23), an inductor B (24) and a positioning cylinder B (25), wherein the base (11) is sequentially provided with the left clamping cylinder (23), the rotary cylinder (12) and two parallel guide rails A (15) from left to right, the left clamping cylinder (23) is arranged on a left vertical plate of the base (11), the mold (22) is fixed on a cylinder rod of the left clamping cylinder (23), the sleeve support (21) is fixed on a shaft of the rotary cylinder (12), the positioning cylinder A (14) and the positioning cylinder B (25) are fixed in the sleeve support (21), an inductor A (13) is arranged on the positioning cylinder A (14); install inductor B (24) on location cylinder B (25), inductor A (13) and inductor B (24) be connected with control box (5) electricity through the cable respectively, equal slidable mounting slider A (16) on two guide rails A (15), the bottom of right side clamp sliding plate (19) is fixed on two slider A (16), install rotating electrical machines (18) in the upper end of right side clamp sliding plate (19), top (20) fixed mounting is epaxial at rotating electrical machines (18), install right clamp cylinder (17) on the riser of base (11) right side, the cylinder pole and the right side of right clamp cylinder (17) press from both sides sliding plate (19) and be connected, rotating electrical machines (18) are connected with control box (5) electricity through the cable.

6. The automatic sorting machine for scaffold upright sleeves according to claim 5, wherein: the left clamping cylinder (23) and the right clamping cylinder (17) act simultaneously to drive the die (22) and the tip (20) to clamp a workpiece sleeve (48) falling onto the sleeve support (21), the workpiece sleeve (48) is driven to rotate through the rotating motor (18), the positioning cylinder A (14) and the positioning cylinder B (25) act while rotating, and cylinder rods of the positioning cylinder A (14) and the positioning cylinder B (25) are ejected out.

7. The automatic sorting machine for scaffold upright sleeves according to claim 6, wherein: when a cylinder rod of the positioning cylinder A (14) is inserted into a hole of the workpiece sleeve (48), the sensor A (13) senses a signal, the rotating motor (18) stops rotating, the positioning cylinder B (25) resets, the left clamping cylinder (23) and the right clamping cylinder (17) reset to release the workpiece sleeve (48), the rotating cylinder (12) rotates 180 degrees to complete sorting, and the sorted workpiece sleeve (48) is taken away by the grabbing and feeding device (2).

8. The automatic sorting machine for scaffold upright sleeves according to claim 6, wherein: when a cylinder rod of the positioning cylinder B (25) is inserted into a hole of the workpiece sleeve (48), the sensor B (24) senses a signal, the rotating motor (18) stops rotating, the positioning cylinder A (14) resets, the left clamping cylinder (23) and the right clamping cylinder (17) reset to release the workpiece sleeve (48), the rotating cylinder (12) does not act, sorting is completed, and the sorted workpiece sleeve (48) is taken away by the grabbing and feeding device (2).

9. An automatic sorting machine for scaffold upright sleeves according to claim 7 or 8, characterised in that: the grabbing and feeding device (2) comprises a bottom plate support (26), a guide rail B (27), a feeding cylinder (28), a sliding plate (29), a grabbing cylinder (30), electromagnets (31) and sliding blocks B (32), wherein the bottom plate support (26) is fixed on a main body frame (8), the two sliding blocks B (32) which are arranged in parallel are arranged above the bottom plate support (26), the guide rail B (27) is arranged on the two sliding blocks B (32) in a sliding mode, the sliding plate (29) is fixed on the two guide rails B (27), the grabbing cylinder (30) is arranged on a vertical plate of the sliding plate (29), the two electromagnets (31) are respectively arranged on cylinder rods of the grabbing cylinder (30), the electromagnets (31) are electrically connected with a control box (5) through cables, the feeding cylinder (28) is arranged on the vertical plate of the bottom plate support (26), and cylinder rods of the feeding cylinder (28) are connected with the sliding plate (29), the material grabbing cylinder (30) moves downwards, the electromagnet (31) falls onto the sorted workpiece sleeve (48), the workpiece sleeve (48) is sucked by the electromagnet (31), at the moment, the material grabbing cylinder (30) resets, the feeding cylinder (28) moves, the sliding plate (29) is driven, the material grabbing cylinder (30) is driven to move, the workpiece sleeve (48) is placed at a specified position, the material grabbing cylinder (30) moves downwards again, the electromagnet (31) is powered off to release the sleeve after the workpiece sleeve is placed in place, the material grabbing cylinder (30) and the feeding cylinder (28) reset, and the next workpiece sleeve (48) is grabbed and taken.

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