Accurate positioning and conveying device for seamless paper tube production

Abstract

The utility model discloses an accurate positioning and conveying device for seamless paper tube production, and relates to the technical field of seamless paper tube production. The accurate positioning and conveying device for seamless paper tube production comprises a bottom plate, a PLC is fixedly installed above the bottom plate, a direction adjusting mechanism used for adjusting the axial direction of paper tubes is installed above the bottom plate, a conveying mechanism used for conveying the paper tubes at equal intervals is fixedly installed above the bottom plate, and the conveying mechanism is used for conveying the paper tubes at equal intervals. The direction adjusting mechanism comprises sliding grooves fixed to the upper portion of the bottom plate, airflow generated by the air compressor enters the connecting pipe through intermittent opening and closing of an electromagnetic valve, so that intermittent airflow is formed between the sliding grooves, and due to the fact that the paper pipe is of a hollow structure, when the airflow direction is parallel to the axis of the paper pipe, the effect on the paper pipe is limited; when one side of the paper tube with the axis parallel to the movement direction is in contact with airflow, the airflow drives the paper tube to rotate, so that the axis of the paper tube is perpendicular to the movement direction, and the paper tubes are parallel to one another.

Description

Technical Field

[0001] This utility model relates to the field of seamless paper tube production technology, specifically to a precision positioning and conveying device for seamless paper tube production. Background Technology

[0002] Seamless paper tubes are widely used in many fields due to their high strength, light weight, and environmental friendliness. Their advantages include biodegradability, low cost, and easy customization. They are gradually replacing plastics and metals and expanding into emerging fields such as new energy batteries and smart device packaging, becoming a green solution. However, the tubular structure of paper tubes makes it impossible to precisely control their spacing during transportation, which affects the gripping of paper tubes by robotic arms in subsequent packing operations.

[0003] The existing Chinese utility model patent with publication number CN214933657U discloses a conveying device for spandex paper tube production with a limiting function, belonging to the field of paper tube processing technology. It includes a base plate, with supports fixedly connected to the four corners of the top of the base plate. A conveyor belt is fixedly connected to the top of each support. Hydraulic rods are fixedly connected to the four corners of the top of the base plate, and support plates are fixedly connected to the tops of the hydraulic rods. A limiting box is fixedly connected to one side of the support plate, and lead screws are threaded through the front and rear sides of the limiting box. This utility model has the advantages of limiting and guiding the paper tubes and having a drying function. It solves the problems of existing conveying devices for spandex paper tube production, which cannot limit and guide the spandex paper tubes during use, causing the paper tubes to easily deviate during conveying, thus affecting their conveying efficiency. Furthermore, due to its simple structure, it lacks a drying function and cannot dry the surface of the spandex paper tubes, reducing the practicality of the conveying device.

[0004] The aforementioned conveying device limits the relative position between the paper tube and the conveyor belt through a limiting structure, but it cannot limit the spacing between the paper tubes. Furthermore, the paper tube may not be able to maintain a parallel state above the conveyor belt, and the paper tube may deflect above the conveyor belt. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a precision positioning and conveying device for seamless paper tube production, which solves the problems that the paper tubes cannot be kept parallel during conveying and that the spacing between the paper tubes cannot be controlled.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a precision positioning and conveying device for seamless paper tube production, including a base plate, a PLC controller fixedly installed above the base plate, an adjusting mechanism for adjusting the axial direction of the paper tube installed above the base plate, and a conveying mechanism for conveying the paper tube at equal intervals fixedly installed above the base plate.

[0007] The steering mechanism includes a slide groove fixed above the base plate, a metal mesh is fitted into the center of the right side of the slide groove, a limit plate is fixedly installed above the slide groove, a connecting pipe is inserted through the left side of the slide groove, a solenoid valve is fixedly installed below the connecting pipe, and an air compressor is connected to the right end of the connecting pipe.

[0008] The conveying mechanism includes a support frame fixedly installed above the base plate. An infrared laser and an infrared receiver are fixedly installed above the support frame. A connecting shaft is inserted into the inner side of the support frame. A stepper motor is fixedly installed on the outer side of the support frame. A toothed sprocket is fixedly installed on the outer side of the connecting shaft. A chain is engaged on the outer side of the toothed sprocket. A support rod is fixedly installed on the outer side of the chain.

[0009] Preferably, the slope of the front side of the top of the chute is less than the slope of the rear side, and the rear end of the chute is provided with a baffle structure connected to the support frame.

[0010] Preferably, the height of the top end of the connecting pipe branch decreases from front to back to match the slope of the chute, and the exhaust end of the air compressor is connected to the bottom end of the connecting pipe.

[0011] Preferably, a baffle structure is provided above the support frame, and the distance between the front end of the baffle structure is greater than that between the rear end. The infrared laser and the infrared receiver are installed in the same vertical line, and the infrared laser points vertically downwards towards the infrared receiver.

[0012] Preferably, the infrared laser and the infrared receiver are located between the chain and the support frame baffle structure, the connecting shaft and the support frame are rotatably connected, and the toothed plate is symmetrically installed on the left and right sides of the support frame.

[0013] Preferably, the chain is symmetrically installed on the outer sides of the toothed plates on both sides of the connecting shaft, and the chain meshes with all toothed plates on the same side. The support rod is installed at equal intervals on the outer side of the chain, and the two sides of the support rod are provided with mirror-symmetrical arc surface structures.

[0014] Beneficial effects

[0015] This invention provides a precision positioning and conveying device for seamless paper tube production. Compared with the prior art, it has the following advantages:

[0016] (1) The precision positioning and conveying device for seamless paper tube production, through the setting of the chute, enables the paper tube to roll under its own weight. Due to the uneven distribution of friction or the torque generated by external disturbance, the axis direction is forced to adjust. When the axis turns to be perpendicular to the direction of movement, the friction torque directly drives the rolling. The system eventually tends to a pure rolling state with lower energy consumption. The airflow generated by the air compressor is allowed to enter the connecting pipe through the intermittent opening and closing of the solenoid valve, thereby forming an intermittent airflow between the chute. Since the paper tube is a hollow structure, the airflow direction is parallel to the paper tube axis, and the effect on the paper tube is limited. When the side of the paper tube whose axis is parallel to the direction of movement comes into contact with the airflow, the airflow will drive the paper tube to rotate, so that the axis of the paper tube is perpendicular to the direction of movement, and the paper tubes are parallel to each other.

[0017] (2) The precision positioning and conveying device for seamless paper tube production uses support rods that are equidistantly installed on the outside of the chain. The support rods have mirror-symmetrical arc structures on both sides. The arc structures on both sides of the support rods restrict the paper tubes between adjacent support rods. A stepper motor drives a single connecting shaft to rotate, causing the toothed disc to drive the chain to rotate, thereby moving the support rods fixed on the outside of the chain. This controls the spacing of the paper tubes during conveying. The baffle structure above the support frame guides the paper tubes to move towards the center of the conveying mechanism. Since the support rods block infrared light, when the support rods are located between the infrared receiver and the infrared laser, the infrared receiver will not be able to receive the infrared signal, causing the electrical signal sent by the infrared receiver to the PLC controller to be interrupted. The PLC controller controls the stepper motor to stop rotating for a period of time and then restart when the electrical signal is interrupted, thereby stopping the chain rotation and allowing the paper tubes to stop at the designated position. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the connecting pipe installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the connecting shaft mounting structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the chain installation structure of this utility model;

[0022] In the diagram: 1. Base plate; 11. PLC controller; 2. Directional mechanism; 21. Slide groove; 22. Metal mesh; 23. Limit plate; 24. Connecting pipe; 25. Solenoid valve; 26. Air compressor; 3. Conveying mechanism; 31. Support frame; 32. Infrared laser; 33. Infrared receiver; 34. Connecting shaft; 35. Stepper motor; 36. Gear plate; 37. Chain; 38. Support rod. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution: a precision positioning and conveying device for seamless paper tube production, including a base plate 1, a PLC controller 11 fixedly installed on the top of the base plate 1, an adjusting mechanism 2 for adjusting the axial direction of the paper tube installed on the top of the base plate 1, the adjusting mechanism 2 including a slide 21 fixed on the top of the base plate 1, a metal mesh 22 embedded in the center of the right side of the slide 21, a limit plate 23 fixedly installed on the top of the slide 21, a connecting pipe 24 inserted on the left side of the slide 21, a solenoid valve 25 fixedly installed below the connecting pipe 24, an air compressor 26 connected to the right end of the connecting pipe 24, the front slope of the top of the slide 21 being less than the rear slope, a baffle structure connected to a support frame 31 being provided at the rear end of the slide 21, the top height of the branch of the connecting pipe 24 decreasing from front to back to match the slope of the slide 21, and the exhaust end of the air compressor 26 being connected to the bottom end of the connecting pipe 24.

[0025] Specifically, the base plate 1 can limit the position between the slide 21 and the support frame 31, the PLC controller 11 can control the opening interval of the solenoid valve 25, and when the infrared receiver 33 does not receive the infrared light generated by the infrared laser 32, the stepper motor 35 is turned off for a period of time. The slide 21 can make the paper tube roll under its own weight. Due to the uneven distribution of friction or the torque generated by external disturbance, the axis direction is forced to adjust. When the axis turns to be perpendicular to the direction of movement, the friction torque directly drives the rolling. The system eventually tends to a pure rolling state with lower energy consumption. The airflow generated by the air compressor 26 is allowed to enter the interior of the connecting pipe 24 through the intermittent opening and closing of the solenoid valve 25, thereby forming an intermittent airflow between the slides 21. When the side of the paper tube whose axis is parallel to the direction of movement comes into contact with the airflow, the airflow will drive the paper tube to rotate, so that the axis of the paper tube is perpendicular to the direction of movement and the paper tubes are parallel to each other. The metal mesh 22 can prevent the paper tube from falling while allowing the airflow to pass through. The limiting plate 23 can prevent the airflow from blowing the paperboard out of the slide 21.

[0026] A conveying mechanism 3 for equidistantly conveying paper tubes is fixedly installed above the base plate 1. The conveying mechanism 3 includes a support frame 31 fixedly installed above the base plate 1. An infrared laser 32 and an infrared receiver 33 are fixedly installed above the support frame 31. A connecting shaft 34 is inserted into the inner side of the support frame 31. A stepper motor 35 is fixedly installed on the outer side of the support frame 31. A toothed sprocket 36 is fixedly installed on the outer side of the connecting shaft 34. A chain 37 is meshed on the outer side of the toothed sprocket 36. A support rod 38 is fixedly installed on the outer side of the chain 37. A baffle structure is provided above the support frame 31, and the distance between the front and rear ends of the baffle structure is greater than that between the front and rear ends. The infrared laser 32 and the infrared receiver 33 are connected to the support frame 31. The infrared receiver 33 is installed in the same vertical line. The infrared laser 32 points vertically downwards towards the infrared receiver 33. The infrared laser 32 and the infrared receiver 33 are located between the chain 37 and the baffle structure of the support frame 31. The connecting shaft 34 and the support frame 31 form a rotating connection. The chain 36 is symmetrically installed on the left and right sides of the support frame 31. The chain 37 is symmetrically installed on the outside of the chain 36 on the left and right sides of the connecting shaft 34. The chain 37 is meshed with all the chain 36 on the same side. The support rod 38 is installed at equal intervals on the outside of the chain 37. The two sides of the support rod 38 are provided with mirror symmetrical arc surface structures.

[0027] Specifically, the support frame 31 can restrict the position of the connecting shaft 34, while the baffle structure above the support frame 31 can guide the paper tube to move towards the center of the conveying mechanism 3. The infrared laser 32 can generate infrared light pointing towards the infrared receiver 33. The infrared receiver 33 can generate an electrical signal when it receives the infrared light and send it to the PLC controller 11. The stepper motor 35 drives the single connecting shaft 34 to rotate, causing the toothed sprocket 36 to drive the chain 37 to rotate. The arc-shaped structures on both sides of the support rod 38 restrict the paper tube between the support rods 38, thereby controlling the paper tube. During the conveying process, because the support rod 38 blocks infrared light, when the support rod 38 is located between the infrared receiver 33 and the infrared laser 32, the infrared receiver 33 will not be able to receive the infrared signal, causing the electrical signal transmitted from the infrared receiver 33 to the PLC controller 11 to be interrupted. When the electrical signal is interrupted, the PLC controller 11 controls the stepper motor 35 to stop rotating for a period of time to stop the rotation of the chain 37, so that the paper tube can stop at the designated position. At the same time, the contents not described in detail in this specification are all prior art known to those skilled in the art.

[0028] During operation, the slide 21 allows the paper tube to roll under its own weight. Due to uneven friction distribution or external disturbances generating torque, the axis direction is forced to adjust. When the axis turns to be perpendicular to the direction of movement, the friction torque directly drives the rolling, and the system eventually tends to a pure rolling state with lower energy consumption. The intermittent opening and closing of the solenoid valve 25 allows the airflow generated by the air compressor 26 to enter the connecting pipe 24, thereby forming an intermittent airflow between the slides 21. Since the paper tube is a hollow structure, when the airflow direction is parallel to the paper tube axis, the effect on the paper tube is limited. When the side of the paper tube whose axis is parallel to the direction of movement comes into contact with the airflow, the airflow will drive the paper tube to rotate, thereby making the axis of the paper tube perpendicular to the direction of movement and making the paper tubes parallel to each other. Through the setting of the support rod 38, the support rod 38 is installed at equal intervals on the outside of the chain 37, and mirror pairs are set on both sides of the support rod 38. The arc-shaped structure on both sides of the support rod 38 restricts the paper tube between adjacent support rods 38. The stepper motor 35 drives the single connecting shaft 34 to rotate, causing the toothed disc 36 to drive the chain 37 to rotate, thereby moving the support rod 38 fixed to the outside of the chain 37, thus controlling the spacing of the paper tube during conveying. The baffle structure above the support frame 31 can guide the paper tube to move towards the center of the conveying mechanism 3. Since the support rod 38 blocks infrared light, when the support rod 38 is located between the infrared receiver 33 and the infrared laser 32, the infrared receiver 33 will not be able to receive the infrared signal, causing the electrical signal sent by the infrared receiver 33 to the PLC controller 11 to be interrupted. When the electrical signal is interrupted, the PLC controller 11 controls the stepper motor 35 to stop rotating for a period of time and then restart, thereby stopping the rotation of the chain 37 and allowing the paper tube to stop at the designated position.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[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 precision positioning and conveying device for seamless paper tube production, comprising a base plate (1), characterized in that: A PLC controller (11) is fixedly installed above the base plate (1), an adjustment mechanism (2) for adjusting the axis of the paper tube is installed above the base plate (1), and a conveying mechanism (3) for conveying the paper tube at equal intervals is fixedly installed above the base plate (1). The steering mechanism (2) includes a slide (21) fixed above the base plate (1), a metal mesh (22) is fitted into the center of the right side facade of the slide (21), a limit plate (23) is fixedly installed above the slide (21), a connecting pipe (24) is inserted through the left side of the slide (21), a solenoid valve (25) is fixedly installed below the connecting pipe (24), and an air compressor (26) is connected to the right end of the connecting pipe (24). The conveying mechanism (3) includes a support frame (31) fixedly installed above the base plate (1). An infrared laser (32) and an infrared receiver (33) are fixedly installed above the support frame (31). A connecting shaft (34) is inserted into the inner side of the support frame (31). A stepper motor (35) is fixedly installed on the outer side of the support frame (31). A toothed disc (36) is fixedly installed on the outer side of the connecting shaft (34). A chain (37) is meshed on the outer side of the toothed disc (36). A support rod (38) is fixedly installed on the outer side of the chain (37).

2. The precision positioning and conveying device for seamless paper tube production according to claim 1, characterized in that: The slope of the front side of the top of the chute (21) is smaller than that of the rear side, and the rear end of the chute (21) is provided with a baffle structure connected to the support frame (31).

3. The precision positioning and conveying device for seamless paper tube production according to claim 1, characterized in that: The top height of the branch of the connecting pipe (24) decreases from front to back to match the slope of the slide groove (21), and the exhaust end of the air compressor (26) is connected to the bottom end of the connecting pipe (24).

4. The precision positioning and conveying device for seamless paper tube production according to claim 1, characterized in that: A baffle structure is provided above the support frame (31), and the distance between the front end of the baffle structure is greater than that between the rear end. The infrared laser (32) and the infrared receiver (33) are installed in the same vertical line, and the infrared laser (32) points vertically downwards towards the infrared receiver (33).

5. The precision positioning and conveying device for seamless paper tube production according to claim 1, characterized in that: The infrared laser (32) and infrared receiver (33) are located between the chain (37) and the baffle structure of the support frame (31). The connecting shaft (34) and the support frame (31) are rotatably connected. The toothed plate (36) is symmetrically installed on the left and right sides of the support frame (31).

6. The precision positioning and conveying device for seamless paper tube production according to claim 1, characterized in that: The chain (37) is symmetrically installed on the outside of the toothed discs (36) on the left and right sides of the connecting shaft (34), and the chain (37) meshes with all the toothed discs (36) on the same side. The support rod (38) is installed at equal intervals on the outside of the chain (37), and the two sides of the support rod (38) are provided with mirror symmetrical arc surface structures.

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