A paper box printing machine's deviation rectifying and positioning device

Abstract

The utility model discloses a kind of deviation rectifying positioning devices of carton printing machine, including conveyor belt, for conveying paperboard;State deviation rectifying mechanism, setting at the input side of conveyor belt, to correct state misaligned paperboard;Path deviation rectifying mechanism, setting at the rear of state deviation rectifying mechanism, to correct paperboard deviating from conveying path;The state deviation rectifying mechanism includes the support across on conveyor belt, a rotating shaft can be rotatably arranged on the support, and the rotating shaft is coaxially connected with motor at one end, at least two groups of blocking components are arranged on the rotating shaft, and the blocking component is electrically connected with motor, and the front end of paperboard is simultaneously pushed two groups of blocking components to drive motor rotation before walking.The present application carries out state correction to misaligned paperboard on conveyor belt by state deviation rectifying mechanism, and then carries out correction to the conveying path of paperboard by path deviation rectifying mechanism, to achieve the problem of correcting paperboard state and path deflection before paperboard printing.

Description

Technical Field

[0001] This utility model relates to auxiliary equipment for a certain carton printing machine, and in particular to a correction and positioning device for a carton printing machine. Background Technology

[0002] Before being processed into cartons, cardboard undergoes several processing steps. During these steps, the transfer of cardboard between various processing devices is typically accomplished via conveyor belts. Printing patterns on the cardboard surface is one of the crucial steps in carton processing. However, it's important to note that during the conveyor belt's transport, misalignment of the cardboard upon entering the belt can lead to misalignment of the printed patterns on the carton surface, affecting print quality.

[0003] Existing printing equipment already incorporates deviation correction devices during the paperboard conveying process, primarily achieved by adjusting the inclination of the conveyor belts on both sides. However, this adjustment method is relatively inefficient, only correcting the slight deviation of the paperboard's path on the conveyor belt. It has very limited effectiveness in correcting overall misalignment of the paperboard on the conveyor belt. Therefore, if a deviation correction and positioning device could be installed on the printing press to correct the deviations that occur during paperboard conveying, the problem of unstable print quality caused by misalignment of the paperboard during printing could be effectively improved. Utility Model Content

[0004] The purpose of this invention is to provide a correction and positioning device for a carton printing machine. Existing correction devices have the problem of limited correction capabilities and low response speed during the conveying of cardboard.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A correction and positioning device for a carton printing machine, comprising:

[0007] Conveyor belts are used to transport cardboard.

[0008] A deviation correction mechanism is installed on the input side of the conveyor belt to correct cardboard that is not in the correct position;

[0009] The path correction mechanism is located behind the status correction mechanism to correct cardboard that deviates from the conveying path;

[0010] The aforementioned state correction mechanism includes a bracket straddling the conveyor belt, on which a rotating shaft is rotatably mounted. One end of the rotating shaft is coaxially connected to a motor, and at least two sets of alignment components are mounted on the rotating shaft. The alignment components are electrically connected to the motor, and the front end of the forward-moving cardboard simultaneously pushes the two sets of alignment components forward to drive the motor to rotate.

[0011] Preferably, the baffle assembly includes a return spring mounted on a rotating shaft, a bushing coaxially mounted on the rotating shaft, the bushing being coaxially connected to the return spring, a baffle rod mounted on the bushing, the baffle extending towards the conveyor belt and its lower end inclined towards the feed side, a push switch mounted on the rotating shaft, and an axially extending lever mounted on the bushing. The rotating baffle rod drives the lever on the bushing to press the switch, thereby driving the motor to rotate.

[0012] Preferably, the blocking assembly further includes an adjusting sleeve, which is axially slidably sleeved on the rotating shaft. The reset spring is fixedly connected to the adjusting sleeve. A locking bolt is also screwed onto the adjusting sleeve. The locking bolt passes through the adjusting sleeve and abuts against the rotating shaft. The push switch is fixedly mounted on the adjusting sleeve.

[0013] Preferably, the rotating shaft has an axially extending guide groove, and the adjusting sleeve is provided with a guide block that slides in the guide groove.

[0014] Preferably, the path correction mechanism includes a movable conveyor belt, a U-shaped bracket connected below the movable conveyor belt, a universal support rod at the bottom of the U-shaped bracket, the universal support rod being connected to the middle position of the U-shaped bracket, and telescopic top rods on both sides of the universal support rod, driving the telescopic top rods to extend and retract to control the tilt angle of the movable conveyor belt.

[0015] Compared with the prior art, the beneficial effects of this utility model are: this solution corrects the state of the cardboard on the conveyor belt by means of a state correction mechanism, and then corrects the conveying path of the cardboard by means of a path correction mechanism, thereby correcting the state of the cardboard and the path deviation before printing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a partial enlarged view of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the blocking component in this scheme.

[0019] Reference numerals: 1. Conveyor belt; 2. Path correction mechanism; 21. Movable conveyor belt; 22. U-shaped bracket; 23. Universal support rod; 24. Telescopic top rod; 3. Status correction mechanism; 31. Bracket; 32. Rotating shaft; 32a. Guide groove; 33. Motor; 34. Alignment assembly; 341. Return spring; 342. Bushing; 343. Stop bar; 344. Push switch; 345. Toggle lever; 346. Adjusting sleeve; 347. Locking bolt; 348. Guide block. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figures 1-3 The illustrated guideline positioning device for a carton printing machine includes a conveyor belt 1 for conveying cardboard to be printed. A set of state correction mechanisms 3 is mounted on the conveyor belt to guide cardboard that is out of alignment. Simultaneously, a set of path correction mechanisms 2 is installed behind the state correction mechanisms 3, which is mainly used to correct cardboard that has deviated from the conveying path.

[0024] Specifically, the alignment correction mechanism 3 includes a support 31 straddling the conveyor belt 1. A rotating shaft 32 is rotatably mounted on the support 31, and one end of the shaft is coaxially connected to a motor 33. The rotation of the motor drives the shaft to rotate synchronously. It should be noted that at least two sets of alignment blocking components 34 are also provided on the shaft, positioned on either side of it. When cardboard transported by the conveyor belt arrives at the alignment correction mechanism, the front end of the cardboard that is misaligned is blocked by the alignment blocking components. It should be noted that the alignment blocking components 34 are electrically connected to the motor 33. When at least two sets of alignment blocking components are activated, the cardboard alignment is corrected, the motor starts, and the shaft rotates, allowing the alignment blocking components 34 to create a path for the aligned cardboard to pass through.

[0025] It is important to note that in the above solution, the guide assembly 34 includes a rotatable bushing 342 fitted onto the rotating shaft and a coaxial return spring 341 mounted on the rotating shaft. One end of the return spring is fixedly connected to the bushing, and the other end is connected to the rotating shaft, allowing the bushing to automatically return to its original position after rotating a certain angle. A stop bar 343 is also connected to the bushing, extending towards the conveyor belt, with its lower end inclined towards the feed side to allow for rotation after being subjected to the action of the cardboard. Furthermore, an axially extending lever 345 is provided at one end of the bushing, and a pressure switch 344 is installed on the rotating shaft in conjunction with it. When the lever is pushed by the cardboard, it drives the lever on the bushing to rotate, which in turn presses against the pressure switch, triggering it. In this solution, the pressure switch is connected to the motor's electrical signal; when all pressure switches are triggered, the motor rotates.

[0026] It's important to know that the cardboard specifications for carton processing are variable. To accommodate more cardboard sizes, the position of the alignment component 34 on the rotating shaft is adjustable. Specifically, the spacing between at least two sets of alignment components can be flexibly adjusted to accommodate different cardboard widths. Specifically, the alignment component includes an adjusting sleeve 346 that slides on the rotating shaft. A locking bolt 347 is screwed onto the adjusting sleeve, with its end abutting against the rotating shaft to lock the adjusting sleeve in place. Furthermore, a return spring is connected to the adjusting sleeve; adjusting the position of the adjusting sleeve on the rotating shaft effectively adjusts the spacing between the alignment components. It's also important to know that a push-button switch, compatible with the above structure, is also mounted on the adjusting sleeve.

[0027] In addition, to prevent the adjustment sleeve from changing its rotational state during sliding, an axially extending guide groove 32a is provided on the rotating shaft 32. At the same time, a guide block 348 is also provided on the adjustment sleeve 346, which slides in the guide groove.

[0028] It should be noted that the path correction mechanism 2 in this solution includes a movable conveyor belt 21, to the bottom of which is connected a U-shaped support 22. A universal support rod 23 is located at the bottom of the U-shaped support 22, positioned at the center of the bottom, allowing the movable conveyor belt to rotate flexibly with the universal support rod as a fulcrum. Furthermore, two telescopic top rods 24 are symmetrically arranged on both sides of the universal support rod 23. Adjusting the extension height of these two telescopic top rods controls the tilt angle of the movable conveyor belt 21.

[0029] Working Principle: The cardboard moves towards the alignment mechanism 3 under the drive of the conveyor belt. The front end of the cardboard then contacts at least two sets of guide components in the alignment mechanism. It's important to understand that if the cardboard is misaligned, its front end will contact the guide components sequentially until the cardboard is fully aligned. At this point, all guide pin components are pushed forward to trigger, and the motor electrically connected to the push-button switch in the guide component starts, driving the rotating shaft. As the shaft rotates, the guide bar is flipped upwards, opening a path for the aligned cardboard. It's crucial to note that although the cardboard is aligned, its path position on the conveyor belt may change, requiring adjustment by the path correction mechanism. Specifically, the path correction mechanism controls the tilt angle of the movable conveyor belt by controlling the extension length of the telescopic top rod, thereby causing the cardboard on the movable conveyor belt to correct its path deviation. It should be noted that in this scheme, the universal support rod used for adjusting the path correction is located in the middle of the U-shaped bracket, so the adjustment efficiency of the angle of the movable conveyor belt will also be affected by the unilateral adjustment.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A correction and positioning device for a carton printing machine, characterized in that: include Conveyor belt (1), used for conveying cardboard; A state correction mechanism (3) is set on the input side of the conveyor belt (1) to correct cardboard with incorrect state; The path correction mechanism (2) is located behind the status correction mechanism (3) to correct cardboard that deviates from the conveying path; The state correction mechanism (3) includes a bracket (31) straddling the conveyor belt (1). A rotating shaft (32) is rotatably mounted on the bracket (31). One end of the rotating shaft (32) is coaxially connected to a motor (33). At least two sets of straightening components (34) are mounted on the rotating shaft (32). The straightening components (34) are electrically connected to the motor (33). The front end of the moving cardboard pushes the two sets of straightening components (34) forward at the same time to drive the motor (33) to rotate.

2. The alignment and positioning device for a carton printing machine as described in claim 1, characterized in that: The stop assembly (34) includes a return spring (341) disposed on a rotating shaft (32). A bushing (342) is coaxially sleeved on the rotating shaft (32). The bushing (342) is coaxially connected to the return spring (341). A stop bar (343) is disposed on the bushing (342). The stop bar (343) extends toward the conveyor belt (1) and its lower end is inclined toward the feeding side. A push switch (344) is disposed on the rotating shaft (32). An axially extending lever (345) is disposed on the bushing (342). The rotating stop bar (343) drives the lever (345) on the bushing (342) to press the switch (344) to drive the motor (33) to rotate.

3. The alignment and positioning device for a carton printing machine as described in claim 2, characterized in that: The blocking assembly (34) also includes an adjusting sleeve (346), which is axially slidably sleeved on the rotating shaft (32). The reset spring (341) is fixedly connected to the adjusting sleeve (346). A locking bolt (347) is also screwed onto the adjusting sleeve (346). The locking bolt (347) passes through the adjusting sleeve (346) and abuts against the rotating shaft (32). The push switch (344) is fixedly mounted on the adjusting sleeve (346).

4. The alignment and positioning device for a carton printing machine as described in claim 3, characterized in that: The rotating shaft (32) is provided with an axially extending guide groove (32a), and the adjusting sleeve (346) is provided with a guide block (348) that slides in the guide groove (32a).

5. The alignment and positioning device for a carton printing machine as described in claim 4, characterized in that: The path correction mechanism (2) includes a movable conveyor belt (21), a U-shaped bracket (22) is connected below the movable conveyor belt (21), a universal support rod (23) is provided at the bottom of the U-shaped bracket (22), the universal support rod (23) is connected to the middle position of the U-shaped bracket (22), and telescopic top rods (24) are provided on both sides of the universal support rod (23) to drive the telescopic top rods (24) to extend and retract to control the tilt angle of the movable conveyor belt (21).

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