A weighing system for an automatic pipe packaging machine

Abstract

This utility model provides a weighing system for an automatic tube packaging machine, including a weighing plate, a middle plate, a base plate, a connecting rod, a weighing sensor, a connecting spring, and a stabilizing mechanism. The stabilizing mechanism includes a rack, an electric slide, a rotary motor, gears, a laser sensor, and a main control unit. Before weighing, the rotary motor drives the gears to rotate, which in turn drives the weighing plate to descend via the rack, pre-compressing the connecting springs. When the tube is placed on the weighing plate, there is no excessive vibration. The main control unit can estimate the approximate weight by using the shape parameters of the tube collected by the laser sensor. Then, the rotary motor drives the rack to move upward via the gears, causing the weighing plate to rise synchronously. When the weight rises to a point where the data collected by the weighing sensor is close to the estimated approximate weight, the main control unit drives the electric slide to move, causing the gears to disengage from the rack. At this point, the weighing plate will not shake significantly, achieving rapid stabilization to obtain accurate weight data.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, and in particular to a weighing system for an automatic pipe packaging machine. Background Technology

[0002] With the acceleration of industrialization, pipes are increasingly widely used in construction, chemical, and energy fields. The requirements for the accuracy and efficiency of weight detection in their production and packaging processes are constantly increasing. In the automatic packaging process of pipes, the weighing system is the core unit, which directly affects the accuracy of packaging specification classification and the efficiency of production line operation. Most commonly used weighing systems place the packaged pipes on the weighing platform for direct measurement. However, most weighing platforms use a support spring structure. When placing the pipes, the inertial impact causes the weighing platform to vibrate continuously, which takes a long time to reach a stable state, seriously affecting the weighing efficiency. Often, workers need to stabilize the pipes, which increases the labor intensity of the workers. In addition, workers are at risk of being cut by the cut surface of the pipes when they intervene to stabilize them. Utility Model Content

[0003] In view of this, the present invention proposes a weighing system for an automatic pipe packaging machine. By pre-compressing the connecting spring, the vibration time of the weighing plate can be reduced, the pipe can be quickly stabilized, and the weighing efficiency can be improved.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A weighing system for an automatic pipe packaging machine includes a weighing plate, a middle plate, a bottom plate, a connecting rod, a weighing sensor, a connecting spring, and a stabilizing mechanism. The weighing plate, middle plate, and bottom plate are arranged sequentially from top to bottom. The connecting rod connects the middle plate and the bottom plate. The weighing sensor is located on the top surface of the middle plate. The top end of the connecting spring is connected to the bottom surface of the weighing plate, and its bottom end is connected to the weighing sensor. The stabilizing mechanism includes a rack, an electric slide, a rotary motor, a gear, a laser sensor, and a main control unit. The middle plate has a through-hole. The top end of the rack is connected to the bottom surface of the weighing plate and is located above the through-hole. The electric slide is located on the middle plate. The rotary motor is located on the top surface of the mover of the electric slide, and its output shaft is connected to the gear. The rack is located on the movement path of the gear. The laser sensors are symmetrically arranged on the top surface of the weighing plate. The main control unit is located on the side wall of the middle plate and is electrically connected to the weighing sensor, the electric slide, the rotary motor, and the laser sensor.

[0006] Preferably, it also includes a display screen, which is disposed on the side wall of the middle layer plate, and the main control unit is electrically connected to the display screen.

[0007] Preferably, the stabilizing mechanism further includes a guide rod, the top end of which is connected to the bottom surface of the weighing plate, and the bottom end of which passes through the middle layer plate.

[0008] Preferably, the top surface of the weighing plate is provided with an arc-shaped recess for placing the pipe to be weighed.

[0009] Preferably, it also includes anti-slip pads, which are spaced apart on the bottom surface of the base plate and in the arc-shaped recess.

[0010] Preferably, the anti-slip pad within the arc-shaped recess is concave.

[0011] Preferably, the stabilizing mechanism further includes an electric turntable and a rotating plate. The electric turntable is symmetrically arranged on the side wall of the weighing plate, and its rotation surface is connected to one side of the rotating plate. The laser sensor is arranged on the opposite side wall of the rotating plate, and the main control unit is electrically connected to the electric turntable.

[0012] Preferably, it also includes an electromagnetic shielding tube, which is disposed on the top surface of the middle layer plate, the weighing sensor is disposed inside the electromagnetic shielding tube, and the bottom end of the connecting spring extends into the electromagnetic shielding tube and is electrically connected to the weighing sensor.

[0013] Preferably, the stabilizing mechanism further includes a trigger button, which is disposed on the top surface of the base plate and located below the passageway, and the main control unit is electrically connected to the trigger button.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] ①When the pipe to be weighed is placed on the weighing plate, the weighing plate will be pressed down, and the connecting spring will apply pressure to the weighing sensor. When the weighing plate and the pipe are in a static state, the weight of the pipe can be obtained by collecting pressure data through multiple weighing sensors, so as to determine the quality of pipe processing and packaging.

[0016] ② Before weighing, the rotary motor can drive the gear to rotate, and the gear can drive the rack to descend, causing the load-bearing plate to descend as well, thus pre-compressing the connecting spring. When the pipe is placed on the weighing plate, since the connecting spring is pre-compressed, the pipe will not vibrate excessively when placed on the weighing plate. Then the rotary motor drives the gear in the opposite direction, causing the load-bearing plate to rise. When it rises to the designated position, the electric slide table drives the gear to disengage from the rack. At this time, the weight of the pipe can be collected by the weighing sensor to realize the automatic weighing of the pipe.

[0017] ③ The laser sensor installed on the weighing plate can collect the shape and size parameters of the pipe. The main control unit can estimate the approximate weight range of the pipe. When the weighing plate rises to the corresponding position, it drives the electric slide to drive the rotary motor and gear to leave the rack. This ensures that the elastic force applied by the connecting spring to the weighing plate is close to the weight of the pipe, further avoiding vibration of the weighing plate and improving the weighing efficiency of the pipe. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the weighing system of an automatic tube packaging machine according to the present invention;

[0020] Figure 2 This is a schematic diagram of the connection structure between the weighing sensor and the connecting spring in the weighing system of an automatic tube packaging machine according to this utility model.

[0021] Figure 3 This is a structural schematic diagram of the weighing system of an automatic tube packaging machine according to the present invention;

[0022] In the diagram, 1. Weighing plate; 2. Middle plate; 3. Base plate; 4. Connecting rod; 5. Weighing sensor; 6. Connecting spring; 7. Rack; 8. Electric slide; 9. Rotary motor; 10. Gear; 11. Laser sensor; 12. Main control unit; 13. Through-hole; 14. Display screen; 15. Guide rod; 16. Arc-shaped recess; 17. Anti-slip pad; 18. Electric turntable; 19. Rotating plate; 20. Electromagnetic shielding tube; 21. Trigger button. Detailed Implementation

[0023] To better understand the technical content of this utility model, a specific embodiment is provided below, and the utility model will be further described in conjunction with the accompanying drawings.

[0024] See Figures 1 to 3This utility model provides a weighing system for an automatic tube packaging machine, comprising a weighing plate 1, a middle plate 2, a bottom plate 3, a connecting rod 4, a weighing sensor 5, a connecting spring 6, and a stabilizing mechanism. The weighing plate 1, middle plate 2, and bottom plate 3 are arranged sequentially from top to bottom. The connecting rod 4 connects the middle plate 2 and the bottom plate 3. The weighing sensor 5 is located on the top surface of the middle plate 2. The top end of the connecting spring 6 is connected to the bottom surface of the weighing plate 1, and its bottom end is connected to the weighing sensor 5. The stabilizing mechanism includes a rack 7, an electric slide 8, a rotary motor 9, a gear 10, a laser sensor 11, and... The main control unit 12 has a through-hole 13 on the middle plate 2. The top of the rack 7 is connected to the bottom surface of the weighing plate 1 and is located above the through-hole 13. The electric slide 8 is set on the middle plate 2. The rotary motor 9 is set on the top surface of the mover of the electric slide 8, and its output shaft is connected to the gear 10. The rack 7 is located on the moving path of the gear 10. The laser sensor 11 is symmetrically arranged on the top surface of the weighing plate 1. The main control unit 12 is set on the side wall of the middle plate 2 and is electrically connected to the weighing sensor 5, the electric slide 8, the rotary motor 9 and the laser sensor 11 respectively.

[0025] Before weighing the pipe, the main control unit 12 drives the rotary motor 9 to rotate the gear 10. The gear 10 drives the rack 7 downward and moves the weighing plate 1 downward synchronously, compressing the connecting spring 6. At this time, the connecting spring 6 can be pre-compressed and kept stable by the gear 10 and rack 7. When the pipe to be weighed is placed on the weighing plate 1, the weighing plate 1 will not vibrate excessively because the connecting spring 6 is pre-compressed. The laser sensor 11 on the weighing plate 1 can collect the shape parameters of the pipe and transmit them to the main control unit 12. The main control unit 12 can estimate the approximate weight of the pipe based on the shape parameters and material density. Then, the main control unit 12 drives the rotary motor 9 to reverse, and the gear 10 drives the rack 7 upward. The weighing plate 1 moves the pipe upwards. When the weight collected by the weighing sensor 5 is close to the estimated weight, the main control unit 12 drives the electric slide 8 to move the rotary motor 9 and gear 10 to one side, causing the gear 10 to disengage from the rack 7. At this time, the weighing plate 1 can make small-amplitude vibration adjustments based on the weight of the pipe under the action of the connecting spring 6, and quickly come to a stop. The weight data collected by the weighing sensor 5 after it stops is transmitted to the main control unit 12. The main control unit 12 calculates the weight of the pipe based on the data collected by the weighing sensor 5. The vibration time of the pipe on the weighing plate 1 can be reduced by the pre-compression-release-gear 10 and rack 7 separation, thereby achieving rapid stopping of the pipe and improving the weighing efficiency of the pipe.

[0026] For the main control unit 12, a single-chip microcomputer of the STM32 series is selected, while the weighing sensor 5 is of model SB-5t and the laser sensor 11 is of model Banner Q4X. Before weighing, the gear 10 will drive the rack 7 to move downward along the through-hole 13. The middle plate 2 provides support for the weighing sensor 5, and the middle plate 2 and the bottom plate 3 below it are connected by a connecting rod 4 to form an overhead layer so that the bottom end of the rack 7 can move downward.

[0027] Preferably, it also includes a display screen 14, which is disposed on the side wall of the middle layer plate 2, and the main control unit 12 is electrically connected to the display screen 14.

[0028] After the main control unit 12 collects the weighing data from the weighing sensor 5, it can calculate the weight of the pipe and transmit the weight of the pipe to the display screen 14 for display, so that the staff can check the weight of the pipe.

[0029] Preferably, the stabilizing mechanism further includes a guide rod 15, the top end of which is connected to the bottom surface of the weighing plate 1, and the bottom end of which passes through the middle plate 2.

[0030] During the lifting and lowering process of the weighing plate 1, the guide rod 15 will move along the slot on the middle plate 2 to prevent the weighing plate 1 from shifting and to ensure that the pressure applied by the connecting spring 6 to the weighing sensor 5 is not erroneous.

[0031] Preferably, the top surface of the weighing plate 1 is provided with an arc-shaped recess 16, which is used to place the pipe to be weighed.

[0032] The arc-shaped recess 16 allows for the placement of pipes, ensuring their stability on the weighing plate 1 and preventing them from shaking unnecessarily.

[0033] Preferably, it also includes anti-slip pads 17, which are spaced apart on the bottom surface of the base plate 3 and within the arc-shaped recess 16, wherein the anti-slip pads 17 within the arc-shaped recess 16 are concave.

[0034] When the pipe is placed into the placement position, the friction can be increased by the anti-slip pad 17, which further prevents the pipe from shaking. During the entire weighing process, the anti-slip pad 17 at the bottom of the base plate 3 can also prevent the entire system from shifting, ensuring the stability of the system.

[0035] Preferably, the stabilizing mechanism further includes an electric turntable 18 and a rotating plate 19. The electric turntable 18 is symmetrically arranged on the side wall of the weighing plate 1, and its rotation surface is connected to one side of the rotating plate 19. The laser sensor 11 is arranged on the opposite side wall of the rotating plate 19. The main control unit 12 is electrically connected to the electric turntable 18.

[0036] The laser sensor 11 is mounted on the rotating plate 19. The electric turntable 18 can drive the laser sensor 11 to rotate via the rotating plate 19, so that the laser sensor 11 is located on the upper and lower sides of the weighing plate 1. When the pipe needs to be placed on the weighing plate 1, the laser sensor 11 can be located on the lower side of the weighing plate 1 to avoid obstructing the placement of the pipe. After the pipe is placed on the weighing plate 1, the electric turntable 18 can drive the rotating plate 19 to rotate, so that the laser sensor 11 rotates to the upper side of the weighing plate 1 to realize the acquisition of the shape parameters of the pipe.

[0037] Preferably, it also includes an electromagnetic shielding tube 20, which is disposed on the top surface of the middle layer plate 2. The weighing sensor 5 is disposed inside the electromagnetic shielding tube 20, and the bottom end of the connecting spring 6 extends into the electromagnetic shielding tube 20 and is electrically connected to the weighing sensor 5.

[0038] The electromagnetic shielding tube 20 can prevent the external electromagnetic environment from affecting the weighing sensor 5, and at the same time, it can limit the deformation of the connecting spring 6 and prevent the connecting spring 6 from undergoing lateral deformation.

[0039] Preferably, the stabilizing mechanism further includes a trigger button 21, which is disposed on the top surface of the base plate 3 and located below the passageway 13. The main control unit 12 is electrically connected to the trigger button 21.

[0040] When gear 10 drives rack 7 to descend, rack 7 will move downward along through opening 13. When rack 7 moves to the lowest end, it will contact trigger button 21, triggering trigger button 21 to send a signal to main control unit 12. At this time, main control unit 12 can stop the drive of rotating motor 9, and then the staff will place the pipe to be weighed on weighing plate 1.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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. A weighing system for an automatic pipe packaging machine, characterized in that, The system includes a weighing plate, a middle plate, a base plate, a connecting rod, a load cell, a connecting spring, and a stabilizing mechanism. The weighing plate, middle plate, and base plate are arranged sequentially from top to bottom. The connecting rod connects the middle plate and the base plate. The load cell is located on the top surface of the middle plate. The top end of the connecting spring is connected to the bottom surface of the weighing plate, and its bottom end is connected to the load cell. The stabilizing mechanism includes a rack, an electric slide, a rotary motor, a gear, a laser sensor, and a main control unit. The middle plate has a through-hole. The top end of the rack is connected to the bottom surface of the weighing plate and is located above the through-hole. The electric slide is located on the middle plate. The rotary motor is located on the top surface of the mover of the electric slide, and its output shaft is connected to the gear. The rack is located on the movement path of the gear. The laser sensors are symmetrically arranged on the top surface of the weighing plate. The main control unit is located on the side wall of the middle plate and is electrically connected to the load cell, the electric slide, the rotary motor, and the laser sensor.

2. The weighing system of an automatic pipe packaging machine according to claim 1, characterized in that, It also includes a display screen, which is disposed on the side wall of the middle layer plate, and the main control unit is electrically connected to the display screen.

3. The weighing system of an automatic pipe packaging machine according to claim 1, characterized in that, The stabilizing mechanism also includes a guide rod, the top of which is connected to the bottom surface of the weighing plate, and the bottom of which passes through the middle layer plate.

4. The weighing system of an automatic pipe packaging machine according to claim 1, characterized in that, The weighing plate has an arc-shaped recess on its top surface, which is used to place the pipe to be weighed.

5. The weighing system of an automatic pipe packaging machine according to claim 4, characterized in that, It also includes anti-slip pads, which are spaced apart on the bottom surface of the base plate and in the arc-shaped recess.

6. The weighing system of an automatic pipe packaging machine according to claim 5, characterized in that, The anti-slip pad inside the arc-shaped recess is concave.

7. The weighing system of an automatic pipe packaging machine according to claim 1, characterized in that, The stabilizing mechanism also includes an electric turntable and a rotating plate. The electric turntable is symmetrically arranged on the side wall of the weighing plate, and its rotation surface is connected to one side of the rotating plate. The laser sensor is arranged on the opposite side wall of the rotating plate, and the main control unit is electrically connected to the electric turntable.

8. The weighing system of an automatic pipe packaging machine according to claim 1, characterized in that, It also includes an electromagnetic shielding tube, which is disposed on the top surface of the middle layer plate. The weighing sensor is disposed inside the electromagnetic shielding tube, and the bottom end of the connecting spring extends into the electromagnetic shielding tube and is electrically connected to the weighing sensor.

9. The weighing system of an automatic pipe packaging machine according to claim 1, characterized in that, The stabilizing mechanism also includes a trigger button, which is located on the top surface of the base plate and below the passageway. The main control unit is electrically connected to the trigger button.

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