Automatic centering structure for empty pallet

Abstract

The invention relates to an empty pallet automatic centering structure which comprises a bottom plate, a support, a push plate, an air cylinder and a telescopic plate, the air cylinder is installed at the front end of the telescopic plate through a connecting piece, the movable tail end of the air cylinder is connected with the push plate, the push plate is movably connected with the telescopic plate through a connecting piece, the push plate makes contact with and pushes an empty pallet, and long kidney-shaped holes are formed in the two sides of the telescopic plate. Through holes distributed along the edges are formed in the two ends of the support, the telescopic plate and the support are connected through the long kidney-shaped holes and the through holes through connecting pieces, the front end of the support is bent downwards and backwards, the bent position is connected with the bottom plate through a connecting piece, and connection between the support and the bottom plate is provided with connecting hole positions in the forward direction and the reverse direction. Compared with the prior art, the device has the advantages of simple structure, space saving, convenience in operation and the like.

Description

Technical Field

[0001] This invention relates to the field of conveying platform technology for a die-cutting machine logistics system, and in particular to an automatic centering structure for empty pallets. Background Technology

[0002] In existing die-cutting machine paper receiving logistics systems, the placement of empty pallets is done manually by operators within a short timeframe. Consequently, the left-right position of the empty pallets relative to the conveyor platform is arbitrary and often not centered. This results in misalignment and displacement of the paper stack's perimeter relative to the pallet after receiving, hindering smooth downstream logistics and impacting the automation of the logistics system.

[0003] Utility model CN211920167U discloses an automatic positioning device for palletizing. The first cylinder pushes the piston rod to lock the pallet in the pallet placement area. Finally, four second cylinders on the left and right drive the pressure blocks to move towards the center, so that the pallet is centered in the pallet placement area. The width of the pallet that the device can operate on is limited by the size of each component, and it is not possible to operate on pallets of different widths by adjustment. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects of the prior art and provide an automatic centering structure for empty pallets that is simple in structure, space-saving, and easy to operate.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] The present invention provides an automatic centering structure for empty pallets, including a base plate, a support, a push plate, a cylinder, and a telescopic plate. The cylinder is installed at the front end of the telescopic plate through a connector, and the movable end of the cylinder is connected to the push plate. The push plate is movably connected to the telescopic plate through a connector, and the push plate contacts and pushes the empty pallet.

[0007] Furthermore, the telescopic plate has elongated holes on both sides, and the bracket has through holes distributed along the edges at both ends. The telescopic plate and the bracket are connected by connectors through the elongated holes and through holes. The front end of the bracket is bent downward and backward, and the bent part is connected to the base plate by connectors. The connection between the bracket and the base plate has connection holes in both positive and negative directions.

[0008] Furthermore, the telescopic plate is provided with a first scale and a second scale arranged along the long waist holes on both sides. The first scale and the second scale are connected to the telescopic plate through connectors. The first scale and the second scale have different scales, which are used to provide a reference for the relative position of the telescopic plate and the support when they are connected in two different installation positions between the support and the base plate.

[0009] Furthermore, a floating joint is provided in front of the moving end of the cylinder, and a connecting plate is provided in the middle rear of the push plate. The cylinder, floating joint, connecting plate and push plate are connected in sequence.

[0010] Furthermore, the structure also includes a solenoid valve, through which the moving end of the cylinder achieves bidirectional movement.

[0011] Furthermore, the structure also includes guide rails located at the connection points on both sides of the push plate and the telescopic plate, which are used to allow the push plate to slide along the guide rails on the telescopic plate. The guide rails are connected to the push plate via connectors.

[0012] Furthermore, the base plate is fixedly connected to the empty pallet conveying equipment via connectors.

[0013] Furthermore, a cover plate is provided above the telescopic plate, and the cross-section of the cover plate is a U-shape with the opening facing downwards, with the cylinder located inside the cover plate.

[0014] Furthermore, all connectors are screws.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. This invention employs a double-acting cylinder. The cylinder's output shaft is connected to the push plate via a floating joint and a connecting plate. When the double-acting cylinder is reversed by a solenoid valve, the cylinder's output shaft moves from one extreme position to another, causing the connected push plate to change position. As the cylinder moves to its furthest extreme position via its output shaft, the push plate, upon reaching this position, pushes the empty pallet (tray) against the front of the push plate to move to a pre-set working position for centering. When the push plate retracts to its nearest extreme position, it clears a passage for the full pallet (tray) to pass smoothly.

[0017] 2. The telescopic plate of this invention has an elongated hole, and the support has multiple screw holes distributed along the edges on both sides. The position of the elongated hole matches the position of the screw holes. The telescopic plate and the support are connected by screws passing through the elongated hole and the screw holes. During connection, the relative position of the telescopic plate and the support along the direction of the elongated hole can be adjusted by adjusting the fixing position of the screws in the elongated hole. The change in the position of the telescopic plate causes the position of the push plate to change, which can meet the use of empty pallets (trays) of different sizes and specifications.

[0018] 3. In this invention, the screw holes on both sides of the base plate and the bracket are arranged symmetrically front and back. The mounting orientation of the bracket on the base plate can be reversed, allowing for two mounting positions: 0 degrees and 180 degrees. Rotating the bracket 180 degrees saves space, avoiding the drawback of conventional adjustment structures requiring significant space. When the bracket is installed at the 0-degree position, a large-sized empty pallet is used. When the bracket is rotated 180 degrees, a small-sized empty pallet is used. These two mounting positions allow the push plate to be adjusted within a wider range of sizes, accommodating more empty pallets of various sizes while minimizing the space occupied.

[0019] 4. The present invention has two types of scales installed on the telescopic plate. The position of the telescopic plate fixed on the bracket can be adjusted according to the size of the empty pallet (tray) with reference to the scales. Attached Figure Description

[0020] Figure 1 A schematic diagram of an automatic centering structure for empty pallets;

[0021] Figure 2 A schematic diagram of the working position of the automatic centering structure for empty pallets;

[0022] Figure 3 Diagram showing the automatic centering function of an empty pallet (tray);

[0023] Figure 4 This is a schematic diagram of the bracket installation location.

[0024] In the diagram, 1. base plate, 2. screw, 3. bracket, 4. screw, 5. push plate, 6. guide rail, 7. screw, 8. screw, 9. connecting plate, 10. floating joint, 11. screw, 12. cylinder, 13. telescopic plate, 14. first scale, 15. screw, 16. screw, 17. cover plate, 18. solenoid valve, 19. second scale. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0026] This embodiment provides an automatic centering structure for empty pallets, which can be used for automatic centering of empty pallets or pallets on empty pallet or pallet conveying devices. For example... Figure 1As shown, the structure mainly includes a base plate 1, a support 3, a push plate 5, a cylinder 12, and a telescopic plate 13. The support 3 is mounted on the base plate 1, the telescopic plate 13 is mounted on the support 3, and the cylinder 12 is mounted on the telescopic plate 13. The cylinder 12 drives the push plate 5 to move back and forth via its movable end. Figure 2 The position shown in part a is moved forward to Figure 2 When the position shown in part b is reached, push the empty pallet to move. Figure 2 When the distance from D is centered, and the push plate 5 moves backward, space is made for the pallet to move along the edge. Figure 3 The arrow indicates the direction of passage.

[0027] Specifically, the telescopic plate 13 has elongated holes distributed along its edges on both sides, and the bracket 3 has multiple screw holes distributed along its edges on both sides. The positions of the elongated holes match the screw holes, and the telescopic plate 13 and the bracket 3 are connected by screws 16 passing through the elongated holes and screw holes. During connection, the relative position of the telescopic plate 13 and the bracket 3 along the direction of the elongated holes can be adjusted by adjusting the fixing position of the screws 16 in the elongated holes to accommodate empty pallets of different widths.

[0028] In this embodiment, the base plate 1 is a horizontal plate with screw holes distributed along the edges on both sides. The front end of the bracket 3 is bent downward and backward, and through holes for screws to pass through are provided on the left and right sides of the backward bend. The screw 4 passes through the through holes and the screw holes on the base plate 1 to fix the bracket 3 to the base plate 1. In addition, the screw 2 passes through the remaining screw holes on the base plate 1 to fix the base plate 1 and the entire structure to the empty pallet conveying equipment.

[0029] Specifically, the screw holes on both sides of the base plate 1 and the bracket 3 are arranged symmetrically front to back, and the mounting position of the bracket 3 on the base plate 1 can be reversed. Figure 4 As shown in part a, in the conventional structure, the support for empty pallets with dimensions ranging from X1 to X3 is achieved entirely by adjusting the relative positional relationship between the telescopic plate 13 and the support 3. Let the length of the structure extending outward from the empty pallet conveying device be B.

[0030] In this embodiment, the bracket 3 has two installation directions on the base plate 1: 0° and 180°. Figure 4 As shown in part b, when the installation direction is 0°, the bracket 3 extends outward from the base plate 1 towards the empty pallet conveying device. At this time, the relative position between the telescopic plate 13 and the bracket 3 can be adjusted to support empty pallets with dimensions ranging from X2 to X3. Let A be the length by which the structure extends outward from the empty pallet conveying device. Figure 4As shown in part c, when the installation direction is 180°, the bracket 3 extends into the inner side of the empty pallet conveying device on the base plate 1. At this time, the relative position between the telescopic plate 13 and the bracket 3 can be adjusted to support empty pallets with a size range of X1-X2. At this time, the length of the structure extending outward from the empty pallet conveying device is 0. It is easy to see that in this embodiment, the two installation directions of the bracket 3 relative to the base plate 1 together realize the adjustable range of empty pallet size X1-X3, and at this time, the outer space A occupied by the structure is much smaller than B.

[0031] As a preferred embodiment, the bracket 3 is a frame structure with a hollow center to reduce weight and material costs.

[0032] In this embodiment, the cylinder 12 is installed at the middle of the front end of the telescopic plate 13 by screws 11, and the connecting plate 9 is installed at the middle of the rear end of the push plate 5 by screws 8. The movable end of the front end of the cylinder 12 is connected to the connecting plate 9 through the floating joint 10, so that the motion output by the cylinder 12 can be transmitted to the push plate 5, driving the push plate 5 to move back and forth.

[0033] In this embodiment, the push plate 5 is connected to the telescopic plate 13, and a pair of guide rails 6 are provided at the connection point to realize the relative sliding of the push plate 5 relative to the telescopic plate 13 along the guide rails 6. The guide rails 6 and the push plate 5 are connected by screws 7.

[0034] In this embodiment, a first ruler 14 and a second ruler 19 are installed on the inner side of the telescopic plate 13 near the elongated hole. These rulers provide dimensional references when adjusting the relative position between the telescopic plate 13 and the bracket 3 to accommodate empty pallets of different sizes. The first ruler 14 is used for the empty pallet size in the 180° installation direction, and the second ruler 19 is used for the empty pallet size in the 0° installation direction. Both the first ruler 14 and the second ruler 19 are fixed to the telescopic plate 13 with screws 15.

[0035] This embodiment provides a cover plate 17 with an inverted U-shaped cross section for dust prevention and protection of the cylinder 12. The cover plate 17 is fixed on the telescopic plate 13 and covers the cylinder 12 inside it.

[0036] Specifically, this embodiment includes a solenoid valve 18 connected to a cylinder 12. When the cylinder 12 is controlled by the solenoid valve 18 to change direction, the output shaft of the cylinder 12 moves from one extreme position to another, driving the push plate 5 connected to it to change its position. When the push plate 5 moves forward to its farthest extreme position, it pushes the empty pallet against the front of the push plate 5 to move together to a preset working position to achieve centering. When the push plate 5 moves backward to its nearest extreme position, it opens a passage to facilitate the smooth passage of the pallet.

[0037] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automatic centering structure for an empty pallet, characterized in that, It includes a base plate (1), a bracket (3), a push plate (5), a cylinder (12), and a telescopic plate (13). The cylinder (12) is installed on the front end of the telescopic plate (13) through a connector, and the movable end of the cylinder (12) is connected to the push plate (5). The push plate (5) is movably connected to the telescopic plate (13) through a connector. The push plate (5) contacts and pushes the empty pallet.

2. The automatic centering structure for an empty pallet according to claim 1, characterized in that, The telescopic plate (13) has elongated waist holes on both sides, and the bracket (3) has through holes distributed along the edges at both ends. The telescopic plate (13) and the bracket (3) are connected by connectors through the elongated waist holes and through holes. The front end of the bracket (3) is bent downward and backward, and the bent part is connected to the base plate (1) by connectors. The connection between the bracket (3) and the base plate (1) has connection holes in both positive and negative directions.

3. The automatic centering structure for an empty pallet according to claim 2, characterized in that, The telescopic plate (13) is provided with a first scale (14) and a second scale (19) arranged along the long waist hole on both sides. The first scale (14) and the second scale (19) are connected to the telescopic plate (13) through a connector. The scales of the first scale (14) and the second scale (19) are different, which are used to provide a reference for the relative position of the telescopic plate (13) and the support (3) when they are connected in two different installation positions between the support (3) and the base plate (1).

4. The automatic centering structure for an empty pallet according to claim 1, characterized in that, A floating joint (10) is provided in front of the movable end of the cylinder (12), and a connecting plate (9) is provided in the middle rear of the push plate (5). The cylinder (12), the floating joint (10), the connecting plate (9) and the push plate (5) are connected in sequence.

5. The automatic centering structure for an empty pallet according to claim 1, characterized in that, The structure also includes a solenoid valve (18), and the moving end of the cylinder (12) can achieve bidirectional movement by switching through the solenoid valve (18).

6. The automatic centering structure for an empty pallet according to claim 1, characterized in that, The structure also includes a guide rail (6), which is located at the connection between the push plate (5) and the telescopic plate (13) on both sides, and is used to allow the push plate (5) to slide on the telescopic plate (13) along the guide rail (6). The guide rail (6) is connected to the push plate (5) through a connector.

7. The automatic centering structure for an empty pallet according to claim 1, characterized in that, The base plate (1) is fixedly connected to the empty pallet conveying equipment via connectors.

8. The automatic centering structure for an empty pallet according to claim 1, characterized in that, The telescopic plate (13) is provided with a cover plate (17) above it. The cross-section of the cover plate (17) is a U-shape with the opening facing downwards. The cylinder (12) is located inside the cover plate (17).

9. An automatic centering structure for an empty pallet according to any one of claims 1-8, characterized in that, All the connecting parts are screws.

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