Automatic positioning turnover device

Abstract

The utility model relates to the technical field of printed matter conveying, and discloses an automatic positioning turnover device which comprises a bottom plate, a machine frame is fixedly installed on the upper surface of the bottom plate through a supporting rod, a stepping motor is fixedly installed on the side wall of the machine frame, a lifting air cylinder is fixedly installed on the upper surface of the bottom plate, and the lifting air cylinder is fixedly installed on the side wall of the machine frame. And an overturning motor is fixedly installed on the side wall of the output end of the lifting air cylinder, a U-shaped clamping block is fixedly installed at the output end of the overturning motor, and an auxiliary positioning assembly is arranged in the U-shaped clamping block. Through the arrangement of the auxiliary positioning assembly, in the downward swinging process of a swing plate till the swing plate makes contact with the surface of a printing paperboard, through continuous downward pressing of the swing plate, a contact plate with the bottom provided with an arc-shaped face deflects outwards with a rotating rod as the rotating center, and thus a Y-shaped contact face is formed on the surface of the printing paperboard; therefore, the anti-skidding and anti-falling effects can be achieved when the printing paperboard is turned over, and the stability of the printing paperboard during turning over is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of printed matter conveying, in particular to an automatic positioning and flipping device. Background Technique

[0002] When printing the surface of printed cardboard, some paper products need to be printed on both sides. However, the printing operation is generally only performed on one side at a time. During the conveying process of the printed cardboard, after the first side is printed, the printed cardboard needs to be flipped, and then continue to be transported to print the other side.

[0003] According to an automatic positioning and flipping device for printing and packaging (publication number: CN216272137U) announced, in the above application, an automatic flipping structure is adopted. During the conveying process, the cardboard is positioned by a positioning component, then the cardboard is lifted to a specified height by a jacking component, and then the cardboard is clamped and continuously lifted by a clamping and rotating flipping component for flipping.

[0004] However, in the actual use process of the above device, during the flipping process, a corresponding positioning fixture is needed to clamp and position the printed cardboard. However, during the clamping process, since the contact area between the fixture and the printed cardboard is small, the acting force on the surface of the printed product is also small, which makes the printed cardboard prone to slipping or displacement during the flipping process, thereby affecting the accuracy of the position of the printed cardboard after flipping. In view of this, we propose an automatic positioning and flipping device. Content of the Utility Model

[0005] The purpose of the utility model is to provide an automatic positioning and flipping device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an automatic positioning and flipping device, including a bottom plate, the upper surface of the bottom plate is fixedly installed with a frame through a support rod, the side wall of the frame is fixedly installed with a stepping motor, the output end of the stepping motor is fixedly installed with a driving roller, a conveyor belt is drivingly connected to the arc-shaped outer wall of the driving roller, the upper surface of the bottom plate is fixedly installed with a lifting device, the output end of the lifting device is fixedly installed with a trigger plate, the upper surface of the bottom plate is fixedly installed with a lifting cylinder, the side wall of the output end of the lifting cylinder is fixedly installed with a flipping motor, the output end of the flipping motor is fixedly installed with a U-shaped clamp block, and an auxiliary positioning component is arranged inside the U-shaped clamp block. The auxiliary positioning component includes:

[0007] A small motor, the side wall of the U-shaped clamp block is fixedly installed with a small motor, the output end of the small motor is fixedly installed with a transmission rod, the transmission rod penetrates through a swing plate, and the swing plate is fixedly connected to the transmission rod;

[0008] A rotating rod, a rectangular groove is formed in the side wall of one end of the swing plate away from the transmission rod, a rotating rod is rotatably installed on the inner wall of the rectangular groove, the rotating rod penetrates through a contact plate, and the contact plate is fixedly connected to the rotating rod, and a scroll spring is sleeved on the arc-shaped outer wall of the rotating rod;

[0009] A round rod, a round rod is rotatably installed on the bottom inner wall of the U-shaped clamp block, and a contact wheel is sleeved on the arc-shaped outer wall of the round rod.

[0010] Preferably, a storage groove with a width adapted to the width of the swing plate is formed in the top inner wall of the U-shaped clamp block. In the initial state, the swing plate is located inside the storage groove.

[0011] Preferably, the number of the contact plates is set to two groups, and the two groups of contact plates are arranged in a V shape. At the same time, the sides of the two groups of contact plates close to each other are set as arc surfaces. By continuously pressing down the swing plate, the contact plates with arc surfaces at the bottom will deflect outward with the rotating rod as the rotation center, so as to form a Y-shaped contact surface on the surface of the printed cardboard.

[0012] Preferably, the number of the contact wheels is set to multiple groups, and the multiple groups of contact wheels are arranged in a linear array on the bottom inner wall of the U-shaped clamp block, and the bottom surface of the U-shaped clamp block is set as an arc surface, so as to avoid the situation of jamming during the movement of the printed product, and ensure the stability of the flipping operation process.

[0013] Preferably, an anti-slip component is arranged inside the contact wheel. The anti-slip component includes a fixed block. The fixed block is fixedly installed on the arc-shaped outer wall of the round rod. A return spring is fixedly connected between the fixed block and the inner wall of the contact wheel. The arc-shaped outer wall of the contact wheel is provided with corrugations.

[0014] Preferably, a rectangular groove with a width adapted to the width of the fixed block is formed inside the contact wheel, and the return spring is arranged inside the rectangular groove.

[0015] Compared with the prior art, the present utility model provides an automatic positioning and flipping device, which has the following

[0016] Beneficial effects:

[0017] 1. For this automatic positioning and flipping device, by providing an auxiliary positioning component, when the swing plate swings downward until it contacts the surface of the printed cardboard, by continuously pressing down the swing plate, the contact plates with arc surfaces at the bottom will deflect outward with the rotating rod as the rotation center, so as to form a Y-shaped contact surface on the surface of the printed cardboard, thereby playing an anti-slip and anti-detachment effect on the printed cardboard during flipping, and ensuring the stability of the printed cardboard during flipping.

[0018] 2. The automatic positioning and flipping device is provided with an anti-slip component. When the swing plate swings downward until the contact plate presses against the surface of the printed cardboard, the printed cardboard will shift horizontally inside the U-shaped clamping block. At this time, through the horizontal pushing of the printed cardboard on the contact wheel and the elastic force of the return spring, multiple groups of contact wheels can provide a reverse force towards the center side of the printed cardboard in the horizontal direction to ensure the stability of the printed cardboard during the flipping process, thereby facilitating the subsequent printing operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the main structure of the present utility model;

[0020] Figure 2 is a schematic diagram of the lifting cylinder and the U-shaped clamping block structure of the present utility model;

[0021] Figure 3 is a schematic cross-sectional view of the U-shaped clamping block of the present utility model;

[0022] Figure 4 is a partial exploded view of the auxiliary positioning component of the present utility model;

[0023] Figure 5 is a schematic cross-sectional view of the contact wheel of the present utility model.

[0024] In the figure: 1, bottom plate; 2, frame; 3, stepping motor; 4, driving roller; 5, conveyor belt; 6, lifting device; 7, trigger plate; 8, lifting cylinder; 9, flipping motor; 10, U-shaped clamping block; 11, auxiliary positioning component; 111, small motor; 112, transmission rod; 113, swing plate; 114, rotating rod; 115, contact plate; 116, volute spring; 117, round rod; 118, contact wheel; 12, anti-slip component; 121, fixed block; 122, return spring; 123, wavy pattern. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] As Figures 1 - 5As shown in the figure, the present utility model provides a technical solution: an automatic positioning and flipping device, which includes a bottom plate 1. The upper surface of the bottom plate 1 is fixedly installed with a frame 2 through a support rod. A stepping motor 3 is fixedly installed on the side wall of the frame 2. The output end of the stepping motor 3 is fixedly installed with a driving roller 4. A conveyor belt 5 is drivingly connected to the arc-shaped outer wall of the driving roller 4. A lifting device 6 is fixedly installed on the upper surface of the bottom plate 1. The output end of the lifting device 6 is fixedly installed with a trigger plate 7. A lifting cylinder 8 is fixedly installed on the upper surface of the bottom plate 1. A flipping motor 9 is fixedly installed on the side wall of the output end of the lifting cylinder 8. The output end of the flipping motor 9 is fixedly installed with a U-shaped clamp 10. An auxiliary positioning component 11 is arranged inside the U-shaped clamp 10. The auxiliary positioning component 11 includes a small motor 111, a transmission rod 112, a swing plate 113, a rotating rod 114, a contact plate 115, a volute spring 116, a round rod 117 and a contact wheel 118.

[0026] In an embodiment of the present utility model, a small motor 111 is fixedly installed on the side wall of the U-shaped clamp 10. The output end of the small motor 111 is fixedly installed with a transmission rod 112. The transmission rod 112 penetrates through a swing plate 113, and the swing plate 113 is fixedly connected to the transmission rod 112. A rectangular groove is opened on the side wall of the end of the swing plate 113 away from the transmission rod 112. A rotating rod 114 is rotatably installed on the inner wall of the rectangular groove. The rotating rod 114 penetrates through a contact plate 115, and the contact plate 115 is fixedly connected to the rotating rod 114. A volute spring 116 is sleeved on the arc-shaped outer wall of the rotating rod 114. A round rod 117 is rotatably installed on the bottom inner wall of the U-shaped clamp 10. A contact wheel 118 is sleeved on the arc-shaped outer wall of the round rod 117.

[0027] Furthermore, a controller is provided on the upper surface of the bottom plate 1, and the controller is electrically connected to the stepping motor 3, the lifting device 6, the lifting cylinder 8, the flipping motor 9, and the small motor 111 through wires. The operator can control the start and stop of the corresponding devices through the controller to facilitate the normal use of the flipping device. At the same time, two sets of conveyor belts 5 are provided, and the two sets of conveyor belts 5 are mirror-symmetrically arranged at both ends of the central axis of the driving roller 4, so as to form a cavity in the central area of the frame 2. The two sets of conveyor belts 5 can support both sides of the printed product to ensure its stable transmission. In addition, the lifting device 6 is arranged on the central axis of the bottom plate 1. At the same time, an inductor is provided on the side of the trigger plate 7. When the driving roller 4 rotates, and then cooperates with the conveyor belt 5 to drive the printed product on its surface to move. Until the surface of the printed product contacts the trigger plate 7, the controller on the bottom plate 1 controls the lifting cylinder 8 to start. At this time, the printed cardboard is inside the U-shaped clamping block 10. Then, through the lifting of the lifting cylinder 8, the U-shaped clamping block 10 drives the printed cardboard to move upward until it reaches the preset position. Then, the flipping motor 9 is started to make the U-shaped clamping block 10 drive the printed cardboard to flip 180°. Thus, the originally lower side of the printed cardboard is flipped to the upper side. After the flipping is completed, the flipping motor 9 is turned off. At this time, the lifting cylinder 8 is controlled to contract, so that the U-shaped clamping block 10 drives the printed cardboard to contact the conveyor belt 5. At the same time, the controller controls the lifting device 6 to drive the trigger plate 7 to move downward, no longer blocking the movement of the printed cardboard. At this time, in cooperation with the movement of the conveyor belt 5, the printed cardboard can be driven to continue to be transported to the right and enter the next printing operation area.

[0028] In addition, a storage groove with a width adapted to the width of the swing plate 113 is provided on the inner wall of the top of the U-shaped clamping block 10. In the initial state, the swing plate 113 is inside the storage groove. At the same time, the end of the storage groove is trapezoidal, which is convenient for storing the contact plate 115. Specifically, two sets of contact plates 115 are provided, and the two sets of contact plates 115 are arranged in a V-shape. At the same time, the mutually approaching sides of the two sets of contact plates 115 are provided with arc-shaped surfaces. So that when the swing plate 113 swings downward until it contacts the surface of the printed cardboard, through the continuous downward pressure of the swing plate 113, the contact plate 115 with an arc-shaped surface at the bottom will deflect outward with the rotating rod 114 as the rotation center to form a Y-shaped contact surface on the surface of the printed cardboard. Thus, it can play an anti-slip and anti-detachment effect on the printed cardboard when it is flipped. Furthermore, multiple sets of contact wheels 118 are provided, and the multiple sets of contact wheels 118 are linearly arranged on the inner wall of the bottom of the U-shaped clamping block 10. And the bottom surface of the U-shaped clamping block 10 is provided with an arc-shaped surface. By providing multiple sets of contact wheels 118 and cooperating with the U-shaped clamping block 10 with an arc-shaped surface at the bottom, it is possible to avoid the situation of jamming of the printed product during movement and ensure the stability of the flipping operation process.

[0029] In an embodiment of the present utility model, an anti-slip component 12 is disposed inside the contact wheel 118. The anti-slip component 12 includes a fixing block 121. The fixing block 121 is fixedly installed on the arc-shaped outer wall of the round rod 117. A return spring 122 is fixedly connected between the fixing block 121 and the inner wall of the contact wheel 118. A corrugation 123 is disposed on the arc-shaped outer wall of the contact wheel 118.

[0030] Specifically, a rectangular groove with a width adapted to the width of the fixing block 121 is formed inside the contact wheel 118, and the return spring 122 is disposed inside this rectangular groove. At the same time, the return spring 122 is disposed on the left and right sides of the fixing block 121, so that the contact wheel 118 can move horizontally along the round rod 117. When the swing plate 113 swings downward until the contact plate 115 presses against the surface of the printed cardboard, the printed cardboard will be laterally offset inside the U-shaped clamping block 10. At this time, through the lateral push of the printed cardboard on the contact wheel 118 and the elastic force of the return spring 122, multiple groups of contact wheels 118 can provide a reverse force toward the center side of the printed cardboard in the horizontal direction to ensure the stability of the printed cardboard during the flipping process, thereby facilitating the subsequent printing operation.

[0031] In the present utility model, during use, the stepping motor 3 is started, and in cooperation with the transmission roller 4 and the conveyor belt 5, the printed cardboard is transported from left to right until the surface of the printed product contacts the trigger plate 7. Then, the controller on the bottom plate 1 controls the lifting cylinder 8 to start. At this time, the printed cardboard is inside the U-shaped clamping block 10. Then, the small motor 111 is started, and in cooperation with the transmission rod 112, the swing plate 113 is driven to rotate until the contact plate 115 is tightly attached to the surface of the printed cardboard until the printed cardboard is fixed with the U-shaped clamping block 10. Then, through the lifting of the lifting cylinder 8, the U-shaped clamping block 10 drives the printed cardboard to move upward until it reaches a preset position. Then, the flipping motor 9 is started to make the U-shaped clamping block 10 drive the printed cardboard to perform a 180° flip, so that the originally lower side of the printed cardboard is flipped to the upper side. After the flipping is completed, the flipping motor 9 is turned off. At this time, the lifting cylinder 8 is controlled to contract so that the U-shaped clamping block 10 drives the printed cardboard to contact the conveyor belt 5. At the same time, the controller controls the lifting device 6 to drive the trigger plate 7 to move downward, no longer blocking the movement of the printed cardboard. At this time, in cooperation with the movement of the conveyor belt 5, the printed cardboard can be driven to continue moving to the right and enter the next printing operation area.

[0032] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the technical field. Therefore, modifications or improvements made without departing from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. An automatic positioning and flipping device, comprising a base plate (1), the upper surface of the base plate (1) is fixedly mounted on a frame (2) through a support rod, a stepper motor (3) is fixedly mounted on the side wall of the frame (2), a transmission roller (4) is fixedly mounted on the output end of the stepper motor (3), a conveyor belt (5) is connected to the arc-shaped outer wall of the transmission roller (4), a lifting device (6) is fixedly mounted on the upper surface of the base plate (1), a trigger plate (7) is fixedly mounted on the output end of the lifting device (6), a lifting cylinder (8) is fixedly mounted on the upper surface of the base plate (1), a flipping motor (9) is fixedly mounted on the side wall of the output end of the lifting cylinder (8), and a U-shaped clamp (10) is fixedly mounted on the output end of the flipping motor (9), characterized in that: An auxiliary positioning component (11) is arranged inside the U-shaped clamp block (10), and the auxiliary positioning component (11) comprises: A small motor (111), the side wall of the U-shaped clamp (10) is fixedly mounted with the small motor (111), the output end of the small motor (111) is fixedly mounted with a transmission rod (112), the transmission rod (112) is penetrated by a swing plate (113), and the swing plate (113) is fixedly connected to the transmission rod (112); A rotating rod (114), a side wall of one end of the swing plate (113) away from the transmission rod (112) is provided with a rectangular groove, the inner wall of the rectangular groove is rotatably mounted with the rotating rod (114), the rotating rod (114) is penetrated by a contact plate (115), and the contact plate (115) is fixedly connected to the rotating rod (114), and a spiral spring (116) is sleeved on the arc-shaped outer wall of the rotating rod (114); A round rod (117) is rotatably mounted on the bottom inner wall of the U-shaped clamping block (10), and a contact wheel (118) is sleeved on the arc-shaped outer wall of the round rod (117).

2. The automatic positioning and flipping device according to claim 1, characterized in that: A receiving groove having a width matching that of the swing plate (113) is provided on the top inner wall of the U-shaped clamp block (10).

3. The automatic positioning and flipping device according to claim 1, characterized in that: The contact plates (115) are arranged in two groups, and the two groups of contact plates (115) are arranged in an eight-shaped shape, and the sides of the two groups of contact plates (115) that are close to each other are arranged in an arc-shaped surface.

4. The automatic positioning and flipping device according to claim 1, characterized in that: The contact wheels (118) are provided in a plurality of groups, and the plurality of groups of contact wheels (118) are provided in a linear array on the bottom inner wall of the U-shaped clamp block (10), and the bottom surface of the U-shaped clamp block (10) is provided as an arc-shaped surface.

5. The automatic positioning and flipping device according to claim 1, characterized in that: An anti-skid component (12) is arranged inside the contact wheel (118), and the anti-skid component (12) includes a fixed block (121). The fixed block (121) is fixedly installed on the arc-shaped outer wall of the round rod (117), and a return spring (122) is fixedly connected between the fixed block (121) and the inner wall of the contact wheel (118). The arc-shaped outer wall of the contact wheel (118) is provided with a wavy pattern (123).

6. The automatic positioning and turning device according to claim 5, characterized in that: A rectangular groove having a width matching that of the fixing block (121) is provided inside the contact wheel (118), and the return spring (122) is arranged inside the rectangular groove.

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