Automatic paperboard positioning device

Abstract

The utility model discloses a kind of paperboard automatic positioning devices, including paperboard conveyor belt, fixed plate and positioning structure, the front and rear sides of paperboard conveyor belt are respectively fixed with fixed plate, the upper end surface of fixed plate is fixedly connected with positioning structure, the utility model is positioned by being set structure, paperboard is transported by paperboard conveyor belt, infrared sensor detects that paperboard passes, infrared sensor controls electric push rod to stretch, electric push rod pushes baffle to move downward, baffle blocks paperboard, and control motor rotates, the output end transmission of motor bidirectional screw rod rotates, bidirectional screw rod is cooperated with limit rod, so that bidirectional screw rod drives push plate to approach, push plate is centered to paperboard and pushes, and electric push rod is retracted, simple structure, the positioning effect of paperboard is good, reaches the effect of the center positioning of paperboard, it is advantageous to subsequent printing processing of paperboard.

Description

Technical Field

[0001] This utility model relates to the field of cardboard, and in particular to an automatic cardboard positioning device. Background Technology

[0002] Paperboard, also known as cardboard, is a thick sheet of paper made from various pulps and interwoven fibers. It is often used as outer packaging for various products. It is usually made from various plant fibers, but sometimes non-plant fibers are added. It is made by forming paper on a paperboard machine.

[0003] CN217495364U discloses a "Carton Positioning Device for a Fully Automatic Carton Gluing Machine," comprising conveyor belt A and conveyor belt B installed perpendicularly. A fixed base is located at the bottom side of conveyor belt B, with a column mounted on the fixed base. A mounting block is mounted on the column, and a sliding rod is connected to the mounting block. A slider is mounted on the sliding rod. The slider is activated by a motor, moving along the sliding rod to position the cardboard at the junction of conveyor belts A and B. A hydraulic motor is mounted at the bottom of the slider, connected to a hydraulic rod, which in turn is connected to a support frame. The hydraulic motor extends and retracts the hydraulic rod, causing the support frame to move up and down, positioning the cardboard. An air compressor is mounted on the support frame, connected via an air supply pipe to a suction cup at the bottom of support rod A. The negative pressure output by the air compressor causes the suction cup to adsorb the cardboard. After adsorption, the cardboard moves upward under the drive of the hydraulic motor, and then the motor on the slider moves the slider along the sliding rod to position the cardboard.

[0004] Although the aforementioned fully automatic cardboard positioning device for gluing machines has certain advantages in positioning capabilities, it has a complex structure, poor positioning effect, and is not convenient for centering different cardboards, which is not conducive to subsequent printing processing of the cardboard and can easily affect the quality of subsequent printing. Utility Model Content

[0005] Therefore, in order to overcome the above-mentioned shortcomings, this utility model provides an automatic cardboard positioning device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an automatic cardboard positioning device, comprising a cardboard conveyor belt, a fixing plate, and a positioning structure. The front and rear sides of the cardboard conveyor belt are respectively fixed with fixing plates. The upper end face of the fixing plate is fixedly connected to the positioning structure. The positioning structure includes a rectangular plate, a rectangular groove, a limiting plate, a driving structure, and a baffle structure. The front and rear sides of the upper end face of the rectangular plate are provided with rectangular grooves. The front and rear ends of the upper side of the rectangular plate are fixed with limiting plates. The middle of the rear side of the upper end face of the rectangular plate is provided with a driving structure. The middle of the left end face of the rectangular plate is fixedly connected to the baffle structure.

[0007] Optionally, the drive structure includes a motor, a bidirectional screw, a bearing, a push-align plate, and a limiting rod. The output end of the motor is connected to the bidirectional screw via a drive, and the other end of the bidirectional screw is rotatably connected to the bearing. The front end face of the bearing is fixedly connected to the rear end face of the front limiting plate. Push-align plates pass through the front and rear sides of the bidirectional screw, and limiting rods are fixed to the top left and right sides of the adjacent ends of the two limiting plates, with the limiting rods passing through the two push-align plates. The motor is installed on the rear side of the middle of the upper end face of the rectangular plate.

[0008] Optionally, the baffle structure includes a mounting plate, an electric push rod, and a baffle. The electric push rod is mounted on the upper surface of the mounting plate, and the lower end of the electric push rod passes through the mounting plate and is fixedly connected to the baffle. The right end of the mounting plate is fixedly connected to a rectangular plate.

[0009] Optionally, an infrared sensor is installed on the right side of the middle of the lower end face of the rectangular plate.

[0010] Optionally, the two push-up plates are symmetrically distributed.

[0011] Optionally, the inner wall of the push plate is threadedly connected to a bidirectional screw.

[0012] Optionally, the two limiting rods are parallel to the bidirectional screw.

[0013] The beneficial effects of this utility model are:

[0014] This utility model is an automatic cardboard positioning device. By setting up a positioning structure, cardboard is transported via a cardboard conveyor belt. An infrared sensor detects the cardboard passing by and controls an electric push rod to extend. The electric push rod pushes a baffle downwards, blocking the cardboard and simultaneously controlling a motor to rotate. The motor's output drives a bidirectional screw to rotate. The bidirectional screw, in conjunction with a limiting rod, causes a pushing plate to approach, centering and straightening the cardboard. Meanwhile, the electric push rod retracts. The structure is simple, and the cardboard positioning effect is good, achieving a centered positioning of the cardboard, which is beneficial for subsequent printing processes. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0017] Figure 3 This is the structure of the utility model Figure 1 Enlarged view of a portion at point A;

[0018] Figure 4 This is a top view of the drive structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the baffle structure of this utility model.

[0020] The components include: cardboard conveyor belt-1, fixing plate-2, positioning structure-3, infrared sensor-4, rectangular plate-31, rectangular groove-32, limiting plate-33, driving structure-34, baffle structure-35, motor-341, bidirectional screw-342, bearing-343, push plate-344, limiting rod-345, mounting plate-351, electric push rod-352, and baffle-353. Detailed Implementation

[0021] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0022] Please see Figure 1 , Figure 2 and Figure 3 This utility model provides an automatic cardboard positioning device, including a cardboard conveyor belt 1, a fixing plate 2, and a positioning structure 3. The fixing plate 2 is fixed to the front and rear sides of the cardboard conveyor belt 1, and the upper end face of the fixing plate 2 is fixedly connected to the positioning structure 3. The positioning structure 3 includes a rectangular plate 31, a rectangular groove 32, a limiting plate 33, a driving structure 34, and a baffle structure 35. The rectangular plate 31 has rectangular grooves 32 on the front and rear sides of the upper end face. The limiting plates 33 are fixed to both the front and rear ends of the upper side of the rectangular plate 31. The driving structure 34 is provided in the middle of the rear side of the upper end face of the rectangular plate 31. The middle of the left end face of the rectangular plate 31 is fixedly connected to the baffle structure 35. An infrared sensor 4 is installed on the right side of the middle of the lower end face of the rectangular plate 31 to facilitate the detection of the cardboard transportation status. The infrared sensor 4 is of model HE-155, which uses infrared light for data processing and has high sensitivity.

[0023] Please see Figure 4This utility model provides an automatic cardboard positioning device. The driving structure 34 includes a motor 341, a bidirectional screw 342, a bearing 343, a push-aligning plate 344, and a limiting rod 345. The output end of the motor 341 is connected to the bidirectional screw 342, and the other end of the bidirectional screw 342 is rotatably connected to the bearing 343. The front end face of the bearing 343 is fixedly connected to the rear end face of the front limiting plate 33. Push-aligning plates 344 are respectively inserted through the front and rear sides of the bidirectional screw 342. Limiting rods 345 are fixed to the left and right sides of the top of the two adjacent ends of the two limiting plates 33, and the limiting rods 345 are inserted through the two push-aligning plates 344. The motor 341 is installed on the rear side of the middle of the upper end face of the rectangular plate 31. The two push-aligning plates 344 are symmetrically distributed, which is beneficial for centering and positioning the cardboard. The inner wall of the push-aligning plate 344... The push plate 344 is threadedly connected to the bidirectional screw 342, facilitating the transmission of the push plate 344 via the bidirectional screw 342. The two limit rods 345 are parallel to the bidirectional screw 352, which helps to limit the push plate 344. The lower end face of the push plate 344 is in contact with the upper end face of the cardboard conveyor belt 1, and the push plate 344 slides along the cardboard conveyor belt 1, which helps the push plate 344 to push and straighten cardboard of different thicknesses. The control system calculates the data of cardboard of different widths to determine the adjustment position of the push plate 344. An encoder is installed on the shaft of the motor 341. The encoder generates a series of pulse signals to indicate the rotation of the motor. By controlling the motor 341 to drive the push plate 344 to move to a preset distance, the centering and positioning of the cardboard is completed, avoiding squeezing and damage to cardboard of different widths.

[0024] Please see Figure 5 This utility model provides an automatic cardboard positioning device. The baffle structure 35 includes a mounting plate 351, an electric push rod 352 and a baffle 353. The electric push rod 352 is mounted on the upper end of the mounting plate 351. The lower end of the electric push rod 352 passes through the mounting plate 351 and is fixedly connected to the baffle 353. The right end of the mounting plate 351 is fixedly connected to the rectangular plate 31.

[0025] The working principle is as follows:

[0026] First, place the new device in the desired location and connect the circuitry.

[0027] Second, the cardboard is transported by the cardboard conveyor belt 1. The cardboard moves from right to left. Whenever the infrared sensor 4 detects that the cardboard is passing to the left, the infrared sensor 4 feeds back data to the external controller. The external controller controls the electric push rod 352 to extend. The electric push rod 352 pushes the baffle 353 to move downward. After the baffle 353 blocks the cardboard, the operation of the cardboard conveyor belt 1 stops.

[0028] Third, when the baffle 353 blocks the cardboard, the motor 341 rotates, and the output end of the motor 341 drives the bidirectional screw 342 to rotate. The bidirectional screw 342, being parallel to the limit rod 345, drives the two push plates 344 to approach each other using the rectangular slot 32. After the push plates 344 push the cardboard 353 to be aligned, the electric push rod 352 retracts, and the motor 341 controls the push plates 344 to reset, achieving the effect of centering and positioning the cardboard. After the action is completed, the limit on the cardboard is released, and the cardboard conveyor belt 1 resumes operation through the external controller, thus completing a complete positioning action. This allows the cardboard conveyor belt 1 to transport the cardboard to the left, facilitating subsequent printing work.

[0029] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

[0030] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic cardboard positioning device, characterized in that: The device includes a cardboard conveyor belt (1), a fixing plate (2), and a positioning structure (3). The front and rear sides of the cardboard conveyor belt (1) are respectively fixed with the fixing plate (2). The upper end face of the fixing plate (2) is fixedly connected to the positioning structure (3). The positioning structure (3) includes a rectangular plate (31), a rectangular groove (32), a limiting plate (33), a driving structure (34), and a baffle structure (35). The front and rear sides of the upper end face of the rectangular plate (31) are provided with rectangular grooves (32). The front and rear ends of the upper side of the rectangular plate (31) are fixed with limiting plates (33). The middle of the rear side of the upper end face of the rectangular plate (31) is provided with a driving structure (34). The middle of the left end face of the rectangular plate (31) is fixedly connected to the baffle structure (35).

2. The automatic cardboard positioning device according to claim 1, characterized in that: The drive structure (34) includes a motor (341), a bidirectional screw (342), a bearing (343), a push plate (344), and a limiting rod (345). The output end of the motor (341) is connected to the bidirectional screw (342) for transmission, and the other end of the bidirectional screw (342) is rotatably connected to the bearing (343). The front end face of the bearing (343) is fixedly connected to the rear end face of the front limiting plate (33). Push plates (344) are respectively passed through the front and rear sides of the bidirectional screw (342). Limiting rods (345) are respectively fixed on the left and right sides of the top of the two adjacent ends of the two limiting plates (33), and the limiting rods (345) pass through the two push plates (344). The motor (341) is installed on the rear side of the middle of the upper end face of the rectangular plate (31).

3. The automatic cardboard positioning device according to claim 1, characterized in that: The baffle structure (35) includes a mounting plate (351), an electric push rod (352), and a baffle (353). The electric push rod (352) is mounted on the upper surface of the mounting plate (351). The lower end of the electric push rod (352) passes through the mounting plate (351) and is fixedly connected to the baffle (353). The right end of the mounting plate (351) is fixedly connected to the rectangular plate (31).

4. The automatic cardboard positioning device according to claim 1, characterized in that: An infrared sensor (4) is installed on the right side of the middle part of the lower end face of the rectangular plate (31).

5. The automatic cardboard positioning device according to claim 2, characterized in that: The two push plates (344) are symmetrically distributed.

6. The automatic cardboard positioning device according to claim 2, characterized in that: The inner wall of the push plate (344) is threadedly connected to the bidirectional screw (342).

7. The automatic cardboard positioning device according to claim 2, characterized in that: The two limiting rods (345) and the bidirectional screw (342) are parallel to each other.

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