Magnetic type conveying device for milk powder tank production and using method

Abstract

A kind of milk powder tank production is with magnetic type conveying device and method, belong to the field of conveyor.It includes power device, conveyor belt, magnetic attraction device and limiting device;The power device includes roller;The roller is equipped with multiple, the gap is left between two coaxial rollers, the outside of roller is fixedly connected with the rotating shaft arranged on support, and connecting shaft is fixedly connected between two coaxial rollers;The outer cylindrical surface of roller is equipped with conveyor belt;The side of conveyor belt towards roller is fixedly connected with limiting device;The inside of limiting device is equipped with magnetic attraction device.The present application not only can prevent magnetic block from adsorbing dust by limiting device simultaneously, but also can replace magnetic block directly in the process of conveyor movement by the cooperation of base and replacement device, reduce the time of shutdown maintenance consumption, and then improve processing efficiency.

Description

Technical Field

[0001] This invention relates to a magnetic conveyor device and its usage method for milk powder can production, belonging to the field of conveyor belts. Background Technology

[0002] During the production of milk powder cans, using a magnetic conveyor belt to move the cans vertically can effectively save the floor space of the production line and reduce factory construction costs. Currently used magnetic conveyor belts require regular maintenance, as the magnetism of the magnetic blocks needs to be tested to prevent the magnetic blocks from weakening and failing to effectively attract the milk powder cans, causing them to fall and be damaged. Maintenance requires machine downtime, which reduces processing efficiency. Therefore, it is necessary to improve the system. Summary of the Invention

[0003] The purpose of this invention is to solve the above-mentioned problems in the background art by providing a magnetic conveying device and its usage method for milk powder can production.

[0004] The present invention achieves the above objectives by adopting the following technical solution:

[0005] A magnetic conveying device for milk powder can production includes a power unit, a conveyor belt, a magnetic suction device, and a limiting device. The power unit includes rollers. Multiple rollers are provided, with a gap between two coaxial rollers. A rotating shaft mounted on a support is fixedly connected to the outer side of each roller, and a connecting shaft is fixedly connected between two coaxial rollers. A conveyor belt is provided on the outer circumference of each roller. A limiting device is fixedly connected to the side of the conveyor belt facing the roller. A magnetic suction device is provided inside the limiting device.

[0006] A method of using a magnetic conveying device for milk powder can production, the method comprising the following steps:

[0007] Step 1: Start the motor connected to the rotating shaft, which drives the drum to rotate, and in turn drives the conveyor belt to rotate;

[0008] Step 2: The conveyor belt uses a magnetic attraction device to attract milk powder cans and move them upwards;

[0009] Step 3: As the conveyor belt rotates one revolution and moves downwards, the weakened magnetic blocks are replaced by the magnetic suction devices installed on the replacement device, without stopping the machine and ensuring processing efficiency.

[0010] Compared with the prior art, the beneficial effects of the present invention are: the present invention can not only prevent dust from adsorbing on the magnetic block by limiting the device at the same time, but also directly replace the magnetic block during the conveyor belt movement by the cooperation of the base and the replacement device, reducing the time spent on downtime maintenance, thereby improving processing efficiency. Attached Figure Description

[0011] Figure 1 This is a front view of a magnetic conveying device for milk powder can production according to the present invention;

[0012] Figure 2 yes Figure 1 A magnified structural diagram of A in the middle;

[0013] Figure 3 yes Figure 1 A magnified structural diagram of B in the diagram;

[0014] Figure 4 This is a schematic diagram of the power unit and connecting device of a magnetic conveying device for milk powder can production according to the present invention.

[0015] Figure 5 This is a schematic diagram of the magnetic suction device of a magnetic suction conveying device for milk powder can production according to the present invention;

[0016] Figure 6 This is a bottom view of the rotating drum of a magnetic conveying device for milk powder can production according to the present invention;

[0017] Figure 7 This is a schematic diagram of the limiting device of a magnetic conveying device for milk powder can production according to the present invention;

[0018] Figure 8 This is a bottom view of the conical barrel of a magnetic conveying device for milk powder can production according to the present invention;

[0019] Figure 9 This is a schematic diagram of the replacement device of a magnetic conveying device for milk powder can production according to the present invention;

[0020] Figure 10 This is a schematic diagram showing the result of the magnetic suction device and the replacement device working together in a magnetic suction conveying device for milk powder can production according to the present invention.

[0021] Figure 11 This is a schematic diagram of the magnetic suction device at the downward moving end of the conveyor belt of a magnetic suction conveyor device for milk powder can production according to the present invention.

[0022] Figure 12 This is a schematic diagram of the magnetic suction device at the upward moving end of the conveyor belt of a magnetic suction conveyor device for milk powder can production according to the present invention. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the invention, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0024] Specific implementation method one: as follows Figure 1-12 As shown, this embodiment describes a magnetic conveying device for milk powder can production, including a power unit 2, a conveyor belt 3, a magnetic suction device 5, and a limiting device 6. The power unit 2 includes rollers 21; multiple rollers 21 are provided, with a gap between two coaxial rollers 21. A rotating shaft 22 mounted on a support 1 is fixedly connected to the outer side of each roller 21, and a connecting shaft 23 is fixedly connected between two coaxial rollers 21. A conveyor belt 8 is provided on the outer surface of each roller 21. The limiting device 6 is fixedly connected to the side of the conveyor belt 8 facing the roller 21. The magnetic suction device 5 is provided inside the limiting device 6. A motor is connected to the side of one of the rotating shafts 22. The limiting device 6 passes through the gap between two rollers 21 as it moves with the conveyor belt 8. A deflector 4 is provided on the outer side of the conveyor belt 8.

[0025] The limiting device 6 includes an L-shaped fixing plate 64; the horizontal end of the fixing plate 64 is fixedly connected to the conveyor belt 8, and two side plates 610 are fixedly connected to the fixing plate 64 in the traveling direction of the conveyor belt 8; a rotating plate 69 is hinged to the side of the fixing plate 64 away from the conveyor belt 8; a sliding groove 66 is provided on the horizontal end of the fixing plate 64, and a sliding rod 63 is provided in the sliding groove 66 for sliding cooperation with it; a metal block 67 is fixedly connected to one end of the sliding rod 63 located on the two side plates 610, and a stop block 61 is fixedly connected to the other end of the sliding rod 63; a conical barrel 68 is fixedly connected to the outside of the metal block 67, and the conical barrel 68 is located between the two side plates 610.

[0026] The magnetic attraction device 5 includes a magnetic block 51; one end of the magnetic block 51 is attracted to a metal block 67, and the other end of the magnetic block 51 has a circular hole in which a threaded ring 52 is embedded; the threaded ring 52 is threadedly connected to a screw 53, and a base 54 is fixedly connected to the screw 53; the magnetic block 51 is located inside a conical barrel 68. This prevents the magnetic block 51 from attracting dust. When replacing the magnetic block 51, the conical barrel 68 can restrict the movement direction of the magnetic block 51, preventing the magnetic block 51 from shifting from the metal block 67 after attraction.

[0027] The top of the fixed plate 64 is provided with an arc-shaped groove 65 communicating with the slide groove 66; the stop block 61 is spherical and slides in conjunction with the arc-shaped groove 65; a baffle 62 is fixedly connected to the outer circular surface of the stop block 61; after the stop block 61 rotates, the baffle 62 contacts the upper end surface of the fixed plate 64; the inner wall of the conveyor belt 8 is provided with an inclined block 81, which contacts the inclined surface of the inclined block 81 when the base 54 faces downward. This allows the magnetic block 51 to rotate when it attracts the metal block 67, facilitating replacement.

[0028] The base 54 has a rectangular hole 57 at one end away from the magnet 51 and a circular hole communicating with it; a slide rod 55 is provided in the rectangular hole 57 and slides therewith; a magnet 56 is embedded in one end of the slide rod 55 near the magnet 51, and a spring I 58 is fixedly connected to the other end of the slide rod 55; a locking block 510 is fixedly connected to the other end of the spring I 58; the locking block 510 is interference-fitted with the rectangular hole 57; a rotating cylinder 512 is connected to the circular hole through a bearing; a square hole 511 is provided at one end of the rotating cylinder 512 away from the magnet 51, and a spiral groove 59 is provided on the outer circular surface of the rotating cylinder 512; a limiting rod 513 is fixedly connected to the side of the slide rod 55 and slides therewith with the spiral groove 59.

[0029] The magnetic block 51 and the magnet 56 repel each other.

[0030] It also includes a connecting device 9; the connecting device 9 includes a connecting plate I 91 and a connecting plate II 93; there are two connecting plates I 91, which are sleeved on the connecting shaft 23 between the rollers 21 of the vertical moving conveyor belt 8 through bearings, and the opposite surfaces of the two connecting plates I 91 are provided with slide rails; the two ends of the connecting plate II 93 are provided with slide bars 92 that slide in cooperation with the corresponding slide rails.

[0031] It also includes multiple replacement devices 7; each replacement device 7 includes a movable plate I 71, a movable plate II 73, and a movable plate III 74; one end of the movable plate I 71 is hinged to the connecting plate II 93, and the lower end of the movable plate I 71 is provided with a groove 72, and the end of the movable plate I 71 near the connecting plate II 93 is also hinged to a movable plate II 73 that slides in cooperation with the groove 72; the movable plate III 74 is obliquely hinged to the movable plate I 71 by a spring hinge, and is near the hinge point between the movable plate I 71 and the connecting plate II 93, and the connecting plate II 93 is provided with a groove 94 to accommodate the movable plate III 74; the movable plate III 74 is also provided with a spring hinge. The movable plate I 71 has a T-shaped groove 76 at the end away from the movable plate III 74, and a T-shaped slider 78 is provided in the T-shaped groove 76 for sliding engagement with it; a spring II 79 is provided between the T-shaped slider 78 and the inner wall of the T-shaped groove 76; a connecting block 77 is fixedly connected to the upper end of the T-shaped slider 78; the connecting end of the connecting block 77 and the T-shaped slider 78 is rectangular to match the square hole 511, and the end of the connecting block 77 away from the T-shaped slider 78 is arc-shaped; the movable plate I 71 on the higher displacement device 7 pushes the movable plate III 74 on the lower displacement device 7 to rotate. The gap between two adjacent displacement devices 7 is smaller than the gap between two adjacent limiting devices 6. The hinge at the joint between the movable plate II 73 and the movable plate I 71 is a limiting angle hinge.

[0032] The connecting block 77 is equipped with a counterweight 10, a magnetic suction device 12 to be replaced, or a magnetic suction device 11 that has been replaced.

[0033] A method of using a magnetic conveying device for milk powder can production, the method comprising the following steps:

[0034] Step 1: Start the motor connected to the rotating shaft 22, which drives the roller 21 to rotate, and in turn drives the conveyor belt 8 to rotate;

[0035] Step 2: Conveyor belt 8 uses magnetic suction device 5 to attract milk powder cans and move them upwards;

[0036] Step 3: When the conveyor belt 8 rotates one revolution and moves downward, the magnetic block 51 with weakened magnetism is replaced by the magnetic suction device 12 installed on the replacement device 7, without stopping the machine and ensuring processing efficiency.

[0037] The working principle of this invention is as follows: the arrow in the accompanying drawings indicates the direction of movement of the conveyor belt 8;

[0038] When using this device, start the motor connected to the rotating shaft 22 to drive the drum 21 to rotate, which in turn drives the conveyor belt 8 to rotate; the conveyor belt 8 moves to Figure 1 When the position is shown in the lower right corner, the milk powder can is attracted by the magnetic suction device 5 and moved upward to complete the conveying process;

[0039] When the conveyor belt 8 rotates one revolution and moves downward, the fixed plate 64 is positioned above the magnetic suction device 5. Under the influence of gravity, the magnetic suction device 5 moves downward, causing the metal block 67, slide rod 63, and stop block 61 to move downward together. When the base 54 contacts the inclined surface of the inclined block 81, under the influence of gravity, the magnetic suction device 5 slides along its inclined surface, causing the spherical stop block 61 to rotate within the arc-shaped groove 65, and driving the rotating plate 69 to rotate until the stop plate 62 contacts the upper surface of the fixed plate 64. At this point, the magnetic suction device 5 stops moving. Figure 3 , Figure 11 The state shown; at this time, the movable plate I 71 of the replacement device 7, which is loaded with counterweight 10 or has had its magnetic attraction device 11 replaced, presses against the movable plate I 71 on the idle replacement device 7 of the connecting block 77, causing it to rotate around the hinge at the connection point with the connecting plate II 93, so that the idle replacement device 7 of the connecting block 77 rotates to the position shown. Figure 2 The state shown is that the idle connecting block 77 is tilted upwards. At this time, the tilting direction of the connecting block 77 is the same as that of the square hole 511, and the connecting block 77 is located below the square hole 511. As the conveyor belt 8 moves downwards, the square hole 511 fits onto the arc-shaped end of the connecting block 77.

[0040] When the magnet 51 on the adsorption device 5 has sufficient magnetism, the repulsive force between the magnet 51 and the magnet 56 is large, compressing the spring I 58 and driving the rotating drum 512 to rotate. This creates an angle between the square hole 511 at the lower end of the rotating drum 512 and the rectangular part at the bottom of the connecting block 77. After the arc-shaped part of the connecting block 77 enters the square hole 511, the rectangular part of the connecting block 77 cannot enter the square hole 511 due to the angle. As the conveyor belt 8 continues to move downward, it pushes the movable plate I 71 to rotate around the hinge. The movable plate I 71 drives the movable plate III 74 to rotate together. The movable plate III 74 drives the movable plate I 71 on the replacement device 7 above it to move until the square hole 511 disengages from the arc-shaped part at the top of the connecting block 77. Under the pressure of the gravity of the movable plate I 71 of the replacement device 7, which is loaded with the counterweight 10 or has had its magnetic adsorption device 11 replaced, the movable plates I 71 and III 74 on the idle replacement device 7 of the connecting block 77 rotate again. Figure 2 The state shown;

[0041] When the magnet 51 on the magnetic attraction device 5 is not sufficiently magnetic, the repulsive force between the magnet 51 and the magnet 56 is small. Under the elastic action of the spring I 58, the slide rod 55 is pushed towards the magnet 51, which in turn moves the limiting rod 513 on its side. This moves the rotating drum 512 through the spiral groove 59, making the angle between the square hole 511 at the lower end of the rotating drum 512 and the rectangular part at the bottom of the connecting block 77 0°. After the arc-shaped part of the connecting block 77 enters the square hole 511, the rectangular part of the connecting block 77 slides in the T-shaped slide groove 76 due to the 0° angle and then enters the square hole 511. Since the connecting block 77 is fully inserted into the square hole 511 and the stop block 61 can no longer rotate, as the conveyor belt 8 moves downward, the angle between the base 54 and the movable plate I 71 is fixed. The rectangular part of the connecting block 77 drives the magnetic suction device 5 to rotate, exposing a gap between the magnetic block 51 and the metal plate 67, and finally causing the magnetic block 51 to detach from the metal plate 67. This transforms the magnetic suction device 5 into a replaced magnetic suction device 11 connected to the connecting block 77. During the downward movement of the conveyor belt 8, under the pushing force of the fixed plate 64 and the gravity of the magnetic suction device 5, the newly replaced magnetic suction device... The device 5 rotates, which in turn drives the movable plate I 71 to rotate, causing it to press down on the movable plate III 74 on the replacement device 7 below it. This, in turn, causes the movable plate III 74 on the replacement device 7 below it to drive the movable plate I 71 to rotate, causing the movable plate I 71 to lift the magnetic suction device 12 to be replaced to below the fixed plate 64. When the metal plate 67 moves to a position close to the magnetic block 51, under the action of magnetic attraction, the magnetic block 51 moves away from the movable plate I 71 and is attracted to the metal plate 67. Because the magnetic block 51 moves away from the movable plate I 71, the square hole 511... After detaching from the rectangular portion of the connecting block 77, the rotating drum 512 is no longer restricted by the rectangular portion of the connecting block 77. Under the action of the magnetic block 51 and the magnet 56, the rotating drum 512 rotates. Therefore, as the conveyor belt 8 continues to move downward, the square hole 511 pushes the arc-shaped portion of the connecting block 77 to move, preventing the rectangular portion of the connecting block 77 from entering again. Subsequently, it moves in the manner described above when the magnetic block 51 on the adsorption device 5 has sufficient magnetism. The replacement of the magnetic adsorption device 5 is completed without stopping the machine, reducing the time consumed by stopping to replace the magnetic adsorption device 5 or to detect the magnetic strength of the magnetic block 51, thereby improving processing efficiency.

[0042] The limiting device 6 and the magnetic attraction device 5 rotate to the bottom of the conveyor belt 8, that is, after rotating 90°, the magnetic attraction device 5 slides along the inclined block 81 under the action of gravity until the conical barrel 68 is against the conveyor belt 8. After rotating another 90°, the limiting device 6 and the magnetic attraction device 5 rotate to the state of conveying the milk powder can upwards. Figure 12 As shown, under the action of gravity, the magnetic attraction device 5, along with the metal block 67 and the conical barrel 68, enters the upper end of the L-shaped fixed plate 64 and begins to work.

[0043] When installing the magnetic suction device 12 to be replaced, remove the connecting plate II 93 from the connecting plate I 91, and then start the installation from below the connecting plate II 93. The magnetic suction device 5 is not installed on the connecting block 77 of the replacement device 7 at the bottom of the connecting plate II 93. Rotate the rotating cylinder 512 at the lower end of the magnetic suction device 12 to the state where the angle between the square hole 511 and the rectangular portion of the connecting block 77 is 0°. Then, fit the square hole 511 onto the connecting block 77 and push the movable plate III 74 on the replacement device 7 below, causing it to rotate around the spring hinge so that its side is close to the side of the base 54 of the magnetic suction device 12 to be replaced. This prevents the magnetic suction device 5 to be replaced from rotating around the rotating cylinder 512, which could cause the angle of the magnetic block 51 to shift, thus affecting the replacement of the magnetic suction device 5. At the same time, rotate the movable plate II 73 at the bottom of the movable plate I 71 to the state where... Figure 2 As shown, an angle exists between the movable plate I 71 and the connecting plate II 93. This causes the movable plate III 74 to rotate to its normal position under the action of the spring hinge when it is not under pressure from the magnetic suction device 12 on the previous replacement device 7. Because of the angle between the movable plate I 71 and the connecting plate II 93, the movable plate III 74 rotates, thus reducing the angle between them. This increases the projected area of ​​the movable plate III 74 on the connecting plate II 93, ensuring the replacement above it... When the movable plate I 71 on device 7 rotates downward, it can press the movable plate III 74, thereby driving the movable plate I 71 on the replacement device 7 below to rotate, so as to move the magnetic suction device 12 to be replaced on it to the position of the replacement magnetic block 51; a counterweight is installed on the connecting block 77 on the uppermost replacement device 7, and the connecting block 77 on the second replacement device 7 from top to bottom is not equipped with the magnetic suction device 12 to be replaced, so that it is pressed by the first replacement device 7 and tilts upward, so as to receive the magnetic suction device 5 with weakened magnetism on the conveyor belt 8;

[0044] When the replacement device 7 causes the magnetic suction device 12 to tilt upwards, the movable plate II 73 remains vertical under the influence of gravity. Figure 2 As shown, when the connecting block 77 receives the replaced magnetic suction device 11, the movable plate I 71 rotates towards the connecting plate II 93. Under the influence of gravity, the movable plate II 73 remains vertical until it adheres to the connecting plate II 93 and enters the groove 72. When the connecting block on the movable plate I 71 receives the replaced magnetic suction device 11 and rotates towards the connecting plate II 93, the movable plate III 74 causes the movable plate I 71 on the replacement device 71 above it to tilt upwards and detach from the movable plate III 74. The replacement device 7 above rotates under the action of the replaced magnetic suction device 5 or the counterweight 10, pushing the movable plate III 74 on the replacement device 7 below to rotate around the spring hinge until... Figure 2The position of the counterweight 10 indicates that the distance between the replaced magnetic suction device 5 and the connecting plate II 93 is reduced, thus avoiding affecting the movement of the limiting device 6 and the magnetic suction device 5 on the conveyor belt.

[0045] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of the equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A magnetic conveying device for milk powder can production, characterized in that: The device includes a power unit (2), a conveyor belt (8), a magnetic suction device (5), and a limiting device (6); the power unit (2) includes a roller (21); multiple rollers (21) are provided, with a gap between two coaxial rollers (21), and a rotating shaft (22) fixedly connected to the outer side of the roller (21) and a connecting shaft (23) fixedly connected between two coaxial rollers (21); a conveyor belt (8) is provided on the outer circumference of the roller (21); a limiting device (6) is fixedly connected to the side of the conveyor belt (8) facing the roller (21); a magnetic suction device (5) is provided inside the limiting device (6); The limiting device (6) includes an L-shaped fixing plate (64); the horizontal end of the fixing plate (64) is fixedly connected to the conveyor belt (8), and the fixing plate (64) has two side plates (610) fixedly connected in the traveling direction of the conveyor belt (8); a rotating plate (69) is hinged to the side of the fixing plate (64) away from the conveyor belt (8); a sliding groove (66) is provided on the horizontal end of the fixing plate (64), and a sliding rod (63) is provided in the sliding groove (66) for sliding cooperation with it; a metal block (67) is fixedly connected to one end of the sliding rod (63) located on the two side plates (610), and a stop block (61) is fixedly connected to the other end of the sliding rod (63); a conical barrel (68) is fixedly connected to the outside of the metal block (67), and the conical barrel (68) is located between the two side plates (610); The top of the fixed plate (64) is provided with an arc-shaped groove (65) that communicates with the sliding groove (66); the stop block (61) is spherical and slides in conjunction with the arc-shaped groove (65); a baffle (62) is fixedly connected to the outer circular surface of the stop block (61); after the stop block (61) rotates, the baffle (62) contacts the upper end surface of the fixed plate (64); The magnetic attraction device (5) includes a magnetic block (51); one end of the magnetic block (51) is attracted to a metal block (67), and the other end of the magnetic block (51) is provided with a round hole, in which a threaded ring (52) is embedded; the threaded ring (52) is connected to a screw (53) by a thread, and a base (54) is fixedly connected to the screw (53); the magnetic block (51) is located inside the conical barrel (68); the inner wall of the conveyor belt (8) is provided with an inclined block (81); when the base (54) faces downward, it contacts the inclined surface on the inclined block (81); The base (54) has a rectangular hole (57) and a circular hole communicating with the rectangular hole (57) at one end away from the magnet (51); a slide rod (55) is provided in the rectangular hole (57) and slides therewith; a magnet (56) is embedded in one end of the slide rod (55) near the magnet (51); a spring I (58) is fixedly connected to the other end of the slide rod (55); a locking block (510) is fixedly connected to the other end of the spring I (58); the locking block (510) is interference-fitted with the rectangular hole (57); a rotating cylinder (512) is connected to the circular hole through a bearing; a square hole (511) is provided at one end of the rotating cylinder (512) away from the magnet (51), and a spiral groove (59) is provided on the outer circular surface of the rotating cylinder (512); a limiting rod (513) that slides with the spiral groove (59) is fixedly connected to the side of the slide rod (55). It also includes multiple replacement devices (7); each replacement device (7) includes a movable plate I (71), a movable plate II (73), and a movable plate III (74); the lower end of the movable plate I (71) is provided with a groove (72), and one end of the movable plate I (71) is hinged to a movable plate II (73) that slides in cooperation with the groove (72); the movable plate III (74) is obliquely hinged to the movable plate I (71) by a spring hinge, and the end of the movable plate I (71) away from the movable plate III (74) is provided with a T-shaped groove (76), and the T-shaped groove (76) is provided with a spring hinge. The sliding T-shaped slider (78) is provided with a spring II (79) between the T-shaped slider (78) and the inner wall of the T-shaped groove (76); a connecting block (77) is fixedly connected to the upper end of the T-shaped slider (78); the connecting end of the connecting block (77) and the T-shaped slider (78) is set as a rectangle that matches the square hole (511), and the end of the connecting block (77) away from the T-shaped slider (78) is arc-shaped; the movable plate I (71) on the high displacement device (7) pushes the movable plate III (74) on the low displacement device (7) to rotate.

2. The magnetic conveying device for milk powder can production according to claim 1, characterized in that: The magnetic block (51) and the magnet (56) repel each other.

3. The magnetic conveying device for milk powder can production according to claim 2, characterized in that: It also includes a connecting device (9); the connecting device (9) includes a connecting plate I (91) and a connecting plate II (93); there are two connecting plates I (91), and the two connecting plates I (91) are mounted on the connecting shaft (23) between the rollers (21) of the vertically moving conveyor belt (8) through bearings, and the two connecting plates I (91) are provided with slide rails on their opposite surfaces; the two ends of the connecting plate II (93) are provided with slide bars (92) that slide in cooperation with the corresponding slide rails.

4. The magnetic conveying device for milk powder can production according to claim 3, characterized in that: The connecting block (77) is equipped with a counterweight (10), a magnetic suction device (12) to be replaced, or a magnetic suction device (11) that has been replaced.

5. A magnetic conveying device for milk powder can production according to claim 4, characterized in that: One end of the movable plate I (71) is hinged to the connecting plate II (93), and the movable plate III (74) is close to the hinge point between the movable plate I (71) and the connecting plate II (93). The connecting plate II (93) is provided with a groove (94) to accommodate the movable plate III (74).

6. The method of using the magnetic conveying device for milk powder can production according to claim 5, characterized in that: The method of use includes the following steps: Step 1: Start the motor connected to the rotating shaft (22), drive the drum (21) to rotate, and then drive the conveyor belt (8) to rotate; Step 2: The conveyor belt (8) uses the magnetic suction device (5) to attract the milk powder can and move it upward; Step 3: When the conveyor belt (8) rotates one revolution and moves downward, the magnetic block (51) with weakened magnetism is replaced by the magnetic suction device (12) to be replaced installed on the replacement device (7), without stopping the machine, thus ensuring processing efficiency.

Images