A square can conveying and reversing device

Abstract

The utility model discloses a square can's conveying and reversing device, including first, second belt conveyer, be equipped with carousel mechanism between first, second belt conveyer, carousel mechanism includes frame, carousel, frame is equipped with one end face, carousel is fixedly connected a central shaft, and the central shaft is hinged on the frame through one way bearing, and carousel is parallel with the end face on the frame, and the periphery of carousel is evenly equipped with a plurality of clamping slots, be equipped with one first limit piece with recessed arc limit surface on the frame, first, second belt conveyor top all are equipped with the guide rod of guiding can head movement, first belt conveyer drive power is driven carousel rotation with the help of first belt conveyer transmission that first belt conveyer sends can head into the clamping slot, and the recessed arc limit surface restricts can head to separate the clamping slot, and carousel drives can head to rotate and reverse again and pushes can head to second belt conveyer after. The utility model has higher action reliability, can better protect can head appearance, and control is relatively simple.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment manufacturing technology, and in particular to a conveying and reversing device for square cans. Background Technology

[0002] Canned food is a type of packaged food made from sheet metal, glass, plastic, or a combination of these materials, forming a sealable container. After specific processing to achieve commercial sterility, it can be kept at room temperature for an extended period without spoiling. A large proportion of cans made from sheet metal are square in shape, and these containers typically have a handle on the top for easy opening.

[0003] After these types of canned goods are manufactured, the top surface of the sealed container needs to be printed with codes to show information such as the manufacturing date. However, the direction of the printed codes on the cans is often inconsistent with the direction of the cans being packed into the boxes. Therefore, the cans need to be rotated 90 degrees during the transportation process before being packed into boxes.

[0004] To achieve automatic steering during transport, various conveying devices have been designed. For example, a Chinese utility model patent, patent number ZL202420416082.7, entitled "Conveying Device," was published on December 20, 2024. This patent includes: a base; a first conveying member movably mounted on the base for conveying a tank; a second conveying member movably mounted on the base for conveying the tank, intersecting with the first conveying member at a predetermined angle; a reversing structure located at the intersection of the first and second conveying members and above them; and a deceleration mechanism adjacent to the reversing structure, including a contact mechanism located above the first conveying member, which contacts and engages with the tank to reduce its moving speed. The technical solution of this application effectively solves the problem in related technologies where the tank's surface is easily damaged due to collision with the guide structure when its moving direction changes. However, this method of using a fixed reversing structure to change the direction of the tank still requires the side of the tank to rub against the reversing structure to achieve the change, which still affects the side of the tank. At the same time, a deceleration mechanism is needed to reduce the moving speed of the tank to prevent the tank from colliding with the guide structure and causing damage to its appearance. Therefore, the overall structure is relatively complex and difficult to control. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a conveying and reversing device for square cans, which has high reliability, can better protect the appearance of the cans, and is relatively simple to control.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows: a conveying and reversing device for square cans, including a first belt conveyor and a second belt conveyor, with a turntable mechanism provided between the first belt conveyor and the second belt conveyor. The turntable mechanism includes a base and a turntable. The base has an end face, and the turntable is fixedly connected to a central shaft. The central shaft is pivotally connected to the base via a one-way bearing. The turntable is parallel to the end face on the base. The outer periphery of the turntable is evenly provided with multiple slots. Each slot has the same structure and size. Each slot has two sides that contact the square cans, and the included angle between the two sides is 90°.

[0007] The belt drive end faces of the first belt conveyor and the second belt conveyor are flush with the end face of the machine base;

[0008] The base is also equipped with a first limiting member with a concave arc limiting surface, which is located near the turntable; both the first belt conveyor and the second belt conveyor are equipped with guide rods to guide the movement of the square cans.

[0009] The first belt conveyor feeds the square cans into the slot and, with the driving force transmitted by the square cans, drives the turntable to rotate. The turntable drives the square cans to rotate and change direction before pushing the square cans onto the second belt conveyor. During the turning process of the square cans, the concave arc limiting surface restricts the square cans from leaving the slot.

[0010] Preferably, the outer periphery of the turntable is provided with 12 evenly distributed slots; the central axis of the concave arc limiting surface overlaps with the central axis of the turntable.

[0011] Preferably, the belt drive end face of the first belt conveyor, the belt drive end face of the second belt conveyor, and the end face of the machine base are horizontally arranged.

[0012] A further improvement involves installing a stop bar on top of the first belt conveyor, arranged along the conveying direction of the square cans. The stop bar prevents the square cans from detaching from the first belt conveyor. This effectively prevents the square cans from jumping off the first belt conveyor and ensures that multiple square cans at the output end of the first belt conveyor remain close together, driving the turntable to rotate.

[0013] A further improvement involves providing a second limiting member at the input end of the second belt conveyor. The limiting portion of the second limiting member is positioned perpendicular to the conveying direction of the square cans, and its lower side restricts the square cans from detaching from the second belt conveyor. This prevents the square cans from leaving the second belt conveyor.

[0014] Furthermore, the second limiting member can be adjusted in position along the conveying direction of the square can; the first belt conveyor and the second belt conveyor are parallel to each other and staggered, so that the second limiting member is in a better position.

[0015] As a further improvement, a cover plate is fixed to the base, covering part of the turntable, to enhance safety during use.

[0016] In a further improvement, the square can is replaced with a rectangular can. The output end of the second belt conveyor is equipped with a screening guide, which has a U-shaped guide groove. The distance between the two inner sides of the U-shaped guide groove is greater than the length of the square can. The bottom surface of the U-shaped guide groove has a rectangular screening hole. The two inner sides of the rectangular screening hole are parallel to the two inner sides of the U-shaped guide groove. The distance between the two inner sides of the rectangular screening hole is greater than the width of the square can but less than its length. This ensures that incorrectly oriented square cans will fall through the rectangular screening hole and be screened out, guaranteeing that the output square cans are correctly oriented, facilitating subsequent packing processes.

[0017] In a further improvement, the device also includes a coding mechanism for square cans. The coding mechanism includes a third belt conveyor connected to the first belt conveyor. The upper surface of the square can is provided with a handle for opening the can. The third belt conveyor transports the coded square can to the first belt conveyor.

[0018] The third belt conveyor is equipped with a camera, a first inkjet terminal, and a second inkjet terminal. The camera, the first inkjet terminal, and the second inkjet terminal are all electrically connected to the controller. The camera sends a signal to the controller by identifying the position of the handle on the square can. The controller then controls the first inkjet terminal or the second inkjet terminal to print the code, so that the printing position on the upper surface of different square cans is consistent.

[0019] Furthermore, the first belt conveyor and the third belt conveyor are connected as one unit.

[0020] This invention features a turntable mechanism located between the first and second belt conveyors. The turntable rotates only in one direction, and then drives the square cans to rotate and change direction via slots. Since the turntable mechanism requires no separate power source, instead relying on the driving force from the first belt conveyor transmitted by the square cans to rotate the turntable, it avoids discrepancies in the conveying rhythm that could cause the turntable to jam, effectively improving the reliability of the operation. Furthermore, as long as the conveying speeds of the first and second belt conveyors are kept essentially the same, the entire device is relatively simple to control.

[0021] Secondly, during the turning process of square cans, the two sides of the slot do not need to move relative to the two sides of the square can, and there will be no relative friction, which can better protect the appearance of the can.

[0022] This invention can be used not only for conveying and reversing square canned goods, but also for conveying and reversing materials similar to square canned goods. Attached Figure Description

[0023] Figure 1 This is a top-view perspective view of the present invention;

[0024] Figure 2 This is a top view of the present invention;

[0025] Figure 3 This is a top-view perspective view of the concealed cover plate of this utility model;

[0026] Figure 4 yes Figure 3 Enlarged view of point A;

[0027] Figure 5 This is a bottom-view perspective view of this utility model. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0029] Figures 1 to 5 As shown, a conveying and reversing device for square cans includes a first belt conveyor 1 and a second belt conveyor 2. A turntable mechanism 3 is provided between the first belt conveyor 1 and the second belt conveyor 2. The turntable mechanism 3 includes a base 4 and a turntable 5. The base 4 is provided with an end face 41. The turntable 5 is fixedly connected to a central shaft 51. The central shaft 51 is pivotally connected to the base 4 through a one-way bearing 52. The turntable 5 is parallel to the end face 41 on the base 4. Twelve slots 53 are evenly distributed on the outer periphery of the turntable 5. Each slot 53 has the same structure and size. Each slot 53 is provided with two side faces 54 that contact the square can 10. The included angle between the two side faces 54 is 90°.

[0030] The belt drive end faces of the first belt conveyor 1 and the second belt conveyor 2 are flush with the end face 41 of the base 4; furthermore, the belt drive end faces of the first belt conveyor 1, the second belt conveyor 2, and the end face 41 of the base 4 are horizontally arranged.

[0031] The base 4 is also equipped with a first limiting member 6 having a concave arc limiting surface 61. The first limiting member 6 is plate-shaped and is located close to the turntable 5. The central axis 51 of the concave arc limiting surface 61 overlaps with the central axis 51 of the turntable 5. Both the first belt conveyor 1 and the second belt conveyor 2 are equipped with two guide rods 7. The two guide rods 7 are parallel to the conveying direction of the square can 10 and are used to guide the movement of the square can 10. The conveying direction of the square can 10 is as follows: Figure 2 As shown by arrow e.

[0032] The first belt conveyor 1 feeds the square can 10 into the slot 53 and drives the turntable 5 to rotate with the driving force transmitted by the first belt conveyor 10. The turntable 5 drives the square can 10 to rotate and change direction before pushing the square can 10 onto the second belt conveyor 2. During the turning process of the square can 10, the concave arc limiting surface 61 restricts the square can from leaving the slot 53.

[0033] A stop bar 8 is provided on the top of the first belt conveyor 1. The stop bar 8 is arranged along the conveying direction of the square can 10 and the stop bar 8 restricts the square can 10 from leaving the first belt conveyor 1.

[0034] A second limiting member 21 is provided at the input end of the second belt conveyor 2. The limiting part 22 of the second limiting member 21 is arranged along the conveying direction perpendicular to the square can 10. The lower side of the limiting part 22 restricts the square can 10 from leaving the second belt conveyor 2.

[0035] The second limiting member 21 can be adjusted in position along the conveying direction of the square can 10; the first belt conveyor 1 and the second belt conveyor 2 are parallel to each other and staggered.

[0036] A cover plate 42 is fixed on the base 4, covering part of the turntable 5 to improve safety during use.

[0037] The square can 10 is a rectangular can. The output end of the second belt conveyor 2 is equipped with a screening guide 9. The screening guide 9 has a U-shaped guide groove 91. The distance between the two inner guide surfaces of the U-shaped guide groove 91 is greater than the length dimension of the square can 10. The bottom surface of the U-shaped guide groove 91 has a rectangular screening through-hole 92. The two inner long sides of the rectangular screening through-hole 92 are parallel to the two inner sides of the U-shaped guide groove 91. The distance between the two inner long sides of the rectangular screening through-hole 92 is greater than the width dimension of the square can 10 but less than its length dimension. Thus, if the square can 10 fails to turn successfully or is misaligned, it will fall through the rectangular screening through-hole 92 and be screened out. Conversely, square cans 10 in the correct orientation can pass smoothly through the U-shaped guide groove 91, ensuring that the square cans 10 are output in the correct direction and guaranteeing smooth packing in subsequent processes.

[0038] This embodiment also includes a coding mechanism 20 for the square can 10. The coding mechanism 20 includes a third belt conveyor 201 connected to the first belt conveyor 1. The upper surface of the square can 10 is provided with a handle 101 for opening the can. The third belt conveyor 201 conveys the coded square can 10 to the first belt conveyor 1.

[0039] The third belt conveyor 201 is equipped with a camera 202, a first spray terminal 203, and a second spray terminal 204. The camera 202, the first spray terminal 203, and the second spray terminal 204 are all electrically connected to the controller. The camera 202 sends a signal to the controller by identifying the position of the handle 101 on the square can 10. Then the controller controls the first spray terminal 203 or the second spray terminal 204 to spray code, so that the spray code position on the upper surface 41 of different square cans 10 is consistent.

[0040] As a variation, the first belt conveyor 1 and the third belt conveyor 201 can be integrated into one unit. The stop bar 8 can extend to the top of the third belt conveyor 201. The third belt conveyor 201 is provided with two guide rods 7 parallel to the conveying direction of the square can 10 for guiding the movement of the square can 10.

[0041] The first belt conveyor 1 is also equipped with a photoelectric sensor 11 to determine whether there are still square cans 10 passing on the first belt conveyor 1.

[0042] The usage process of this embodiment is as follows: The square can 10 is sent to the third belt conveyor 201. Under the guidance of the two guide rods 7, the square can 10 moves horizontally. When the square can 10 reaches the camera 202, the camera 202 identifies the position of the handle 101 on the square can 10 and sends a signal to the controller. Then the controller controls the first spraying dock 203 or the second spraying dock 204 to spray code, so as to ensure that the spraying position of the upper surface 41 of different square cans 10 is consistent.

[0043] After being inkjet-coded, the square cans 10 are sent to the first belt conveyor 1. The square cans 10 move horizontally along their length. Then, the square cans 10 at the front are pushed by the square cans 10 behind them onto a slot 53 of the turntable 5 and supported on the end face 41 of the machine base 4. Since the central shaft 51 of the turntable 5 is pivotally connected to the machine base 4 via a one-way bearing 52, as... Figure 4 As shown, the turntable 5 can only rotate counterclockwise and not clockwise. Therefore, with the driving force of the first belt conveyor 1 and through the transmission of the front square can 10, the turntable 5 drives the square can 10 in the slot 53 to rotate 90° and then send it to the second belt conveyor 2. A guide rod of the second belt conveyor 2 blocks the square can 10, causing the square can 10 to disengage from the slot 53 on the turntable 5.

[0044] Then the square cans 10 move horizontally along the width direction on the second belt conveyor 2, and after passing through the U-shaped guide groove 91 of the screening guide 9, they are sent to the packing machine for packing.

[0045] At this point, if the square can 10 is oriented incorrectly, it will fall through the rectangular screening hole 92 during the process of passing through the U-shaped guide groove 91, ensuring that all square cans 10 are output in the correct orientation.

[0046] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A conveying and reversing device for square canned goods, comprising a first belt conveyor and a second belt conveyor, characterized in that: A turntable mechanism is provided between the first belt conveyor and the second belt conveyor. The turntable mechanism includes a base and a turntable. The base has an end face. The turntable is fixed to a central shaft. The central shaft is pivotally connected to the base through a one-way bearing. The turntable is parallel to the end face on the base. The outer periphery of the turntable is evenly provided with multiple slots. Each slot has the same structure and size. Each slot has two sides that contact the square can. The included angle between the two sides is 90°. The belt drive end faces of the first belt conveyor and the second belt conveyor are flush with the end face of the machine base; The base is also equipped with a first limiting member with a concave arc limiting surface, which is located near the turntable; both the first belt conveyor and the second belt conveyor are equipped with guide rods to guide the movement of the square cans. The first belt conveyor feeds the square cans into the slot and, with the driving force transmitted by the square cans, drives the turntable to rotate. The turntable drives the square cans to rotate and change direction before pushing the square cans onto the second belt conveyor. During the turning process of the square cans, the concave arc limiting surface restricts the square cans from leaving the slot.

2. The conveying and reversing device for square canned goods according to claim 1, characterized in that: The turntable has 12 evenly distributed slots around its outer perimeter; the central axis of the concave arc limiting surface overlaps with the central axis of the turntable.

3. The conveying and reversing device for square canned goods according to claim 1, characterized in that: The belt drive end face of the first belt conveyor, the belt drive end face of the second belt conveyor, and the end face of the base are horizontally arranged.

4. The conveying and reversing device for square canned goods according to claim 1, characterized in that: A stop bar is provided on the top of the first belt conveyor. The stop bar is arranged along the conveying direction of the square cans and prevents the square cans from leaving the first belt conveyor.

5. The conveying and reversing device for square canned goods according to claim 1, characterized in that: A second limiting member is provided at the input end of the second belt conveyor. The limiting part of the second limiting member is arranged perpendicular to the conveying direction of the square can. The lower side of the limiting part restricts the square can from leaving the second belt conveyor.

6. The conveying and reversing device for square canned goods according to claim 5, characterized in that: The second limiting member can be adjusted in position along the conveying direction of the square can; the first belt conveyor and the second belt conveyor are parallel to each other and staggered.

7. The conveying and reversing device for square canned goods according to claim 1, characterized in that: A cover plate is fixed on the base, and the cover plate covers part of the turntable.

8. The conveying and reversing device for square canned goods according to claim 1, characterized in that: The square can is a rectangular can. The output end of the second belt conveyor is provided with a screening guide. The screening guide is provided with a U-shaped guide groove. The distance between the two inner guide surfaces of the U-shaped guide groove is greater than the length dimension of the square can. The bottom surface of the U-shaped guide groove is provided with a rectangular screening through hole. The inner surfaces of the two long sides of the rectangular screening through hole are parallel to the two inner surfaces of the U-shaped guide groove. The distance between the inner surfaces of the two long sides of the rectangular screening through hole is greater than the width dimension of the square can but less than the length dimension of the square can.

9. A conveying and reversing device for square canned goods according to any one of claims 1 to 8, characterized in that: It also includes a coding mechanism for square cans, the coding mechanism including a third belt conveyor connected to the first belt conveyor, the upper surface of the square cans is provided with a handle to open the cans, and the third belt conveyor conveys the coded square cans to the first belt conveyor. The third belt conveyor is equipped with a camera, a first inkjet terminal, and a second inkjet terminal. The camera, the first inkjet terminal, and the second inkjet terminal are all electrically connected to the controller. The camera sends a signal to the controller by identifying the position of the handle on the square can. The controller then controls the first inkjet terminal or the second inkjet terminal to print the code, so that the printing position on the upper surface of different square cans is consistent.

10. A conveying and reversing device for square canned goods according to claim 9, characterized in that: The first belt conveyor and the third belt conveyor are connected as one unit.

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