CN220072467U - Pass-through checkweigher - Google Patents

Abstract

The utility model relates to a through-type weight checking machine, wherein a weight measuring device (2-4) is fixedly arranged at the upper part of a weight checking workbench (2-5), the upper part of the weight measuring device (2-4) is connected with a weight checking roller set frame (2-3), the weight checking roller set frame (2-3) is provided with a weight checking roller set (2-2) through a bracket, and a display (2-6) is arranged at the rear part of the weight checking workbench (2-5) through a weight checking display bracket (2-1); the second belt tensioning section (3) is consistent with the first belt tensioning section (1) in structure and opposite in direction; the front part of the weight detection display bracket (2-1) is provided with the photoelectric sensor and the code spraying machine (2-7), and the photoelectric sensor and the code spraying machine (2-7) are opposite to the center point of the weight detection roller set (2-2), so that the weight detection device can automatically count the workpieces and reject the workpieces with larger errors, and meanwhile, the errors of the unqualified weight workpieces are marked to stop repeated weight detection, and the weight detection working efficiency can be effectively improved.

Description

Pass-through checkweigher

Technical field

The utility model relates to the technical field of industrial automation, specifically a through-type checkweigher.

Background technique

The traditional weighing method is to manually place the weighing on a platform scale and read the weight one by one. This method has low inspection efficiency, large errors, high labor costs, and is prone to missed inspections. It cannot meet the inspection needs of large quantities of products, resulting in low production efficiency and quality problems. At the same time, products that fail to pass the inspection need to be repeatedly inspected and then processed, resulting in multiple repeated inspections and reducing costs. Productivity.

In order to solve these problems, the utility model patent number CN216271643U discloses a belt-type automatic checkweigher, which includes a base. A mounting frame is installed on the top of the base. A stopper assembly is provided on the top of the mounting frame. The outer surface of the mounting frame has two sides. Fixed plates are fixed on both sides, and a motor is installed on the top of the fixed plate. The output ends of the two motors are connected with transmission rollers. A transmission belt is connected between the two transmission rollers. A belt cleaning component is provided below the inside of the mounting frame. The utility model is provided with a belt cleaning component. When the conveyor belt transports items, the main pulley will rotate, and then drive the belt and the slave pulley to rotate. The rotation of the slave pulley can drive the movable shaft to rotate, and the movable shaft drives the cleaning The roller rotates. Since the cleaning roller is in contact with the conveyor belt, the cleaning roller can clean the impurities attached to the surface of the conveyor belt after rotating, preventing impurities from adhering to the conveyor belt and affecting the accuracy of weighing items, and improving the accuracy of weighing items. Stability after placement on conveyor belt. However, this application plan is mainly to solve the problem of dirty belts, but does not solve the problem of repeated check-weighing.

Contents of the invention

In view of the problems existing in the above-mentioned prior art, the present utility model provides a pass-through checkweigher, which can automatically weigh workpieces and eliminate workpieces with large errors. At the same time, the errors of unqualified workpieces can be marked to prevent repeated checkweighing. It can effectively improve the efficiency of check-weighing work.

In order to achieve the above purpose, the utility model, a pass-through checkweigher, includes a first belt tightening section, a checkweighing section, a second belt tightening section and a workpiece conveying belt. The first belt tightening section, checkweighing section The first belt tensioning section includes a driving roller set, a tensioning roller mounting frame, a belt tensioning workbench and a tensioning roller mounting frame. In the tightening control machine, the driving roller set is installed on the upper part of the tensioning roller installation frame through a bracket. The tensioning roller installation frame moves back and forth on the upper part of the belt tensioning table through slide rails and rollers. The tensioning roller installation frame tension control The machine is fixedly installed on the lower surface of the belt tensioning workbench through screws and engages the toothed belt on the lower surface of the tensioning roller installation frame through gears; the checkweighing section includes a checkweighing display bracket, a checkweighing roller wheel set, and a checkweighing roller The wheel set frame, weighing device, check weighing workbench and display. The weighing device is fixedly installed on the upper part of the check weighing workbench. The upper part of the weighing device is connected to the check weighing roller wheel set frame. The upper part of the check weighing roller wheel set frame is installed with a bracket to check the weight. Roller set, the rear part of the checkweighing workbench is equipped with a display through the checkweighing display bracket; the second belt tensioning section has the same structure and the opposite direction as the first belt tightening section; a photoelectric sensor is installed on the front of the checkweighing display bracket , the photoelectric sensor is facing the center point of the check weighing roller set.

As a further improvement of the present invention, the driving roller set is driven by a motor.

As a further improvement of the present invention, the tension roller installation frame and the checkweighing roller set frame are equipped with anti-deviation rollers.

As a further improvement of the present invention, the monitor bracket is equipped with a workpiece push-out telescopic arm.

As a further improvement of the present invention, the tensioning roller mounting frames of the first belt tensioning section and the second belt tensioning section are equipped with tension sensors.

Through the above solution, the present invention at least has the following advantages: compared with conventional manual weighing, by embedding a pass-through checkweigher on the production line and adding a photoelectric sensor and an inkjet printer, workpieces can be automatically weighed. , and eliminate workpieces with large errors, and mark the weight error on unqualified workpieces, which can effectively improve the efficiency of inspection work.

Description of drawings

Figure 1 is a three-dimensional schematic diagram of a pass-through checkweigher;

In the picture: 1. The first belt tensioning section, 1-1, driving roller group, 1-2, tensioning roller mounting frame, 1-3, belt tensioning workbench, 1-4, tensioning roller Install the frame tensioning control machine, 2. Checkweighing section, 2-1, Checkweighing display bracket, 2-2, Checkweighing roller set, 2-3, Checkweighing roller set frame, 2-4, Weighing device , 2-5. Checkweighing workbench, 2-6. Display, 2-7. Photoelectric sensor and inkjet printer, 3. Second belt tensioning section, 4. Workpiece conveyor belt.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, this pass-through checkweigher includes a first belt tensioning section 1, a checkweighing section 2, a second belt tensioning section 3 and a workpiece conveying belt 4. The first belt tensioning section 1 , the check-weighing section 2 and the second belt tensioning section 3 transfer workpieces by the workpiece conveying belt 4; the first belt tensioning section 1 includes a driving roller group 1-1, a tensioning roller installation frame 1-2, The belt tensioning workbench 1-3 and the tensioning roller installation frame tensioning control machine 1-4, the driving roller group 1-1 is installed on the upper part of the tensioning roller installation frame 1-2 through the bracket, and the tensioning roller is installed The frame 1-2 moves back and forth on the upper part of the belt tensioning workbench 1-3 through slide rails and rollers. The tensioning roller installation frame tensioning control machine 1-4 is installed on the lower surface of the belt tensioning workbench 1-3 through screws. And the toothed belt on the lower surface of the roller mounting frame 1-2 is tightened through gear mesh; the checkweighing section 2 includes a checkweighing display bracket 2-1, a checkweighing roller set 2-2, and a checkweighing roller set frame 2-3. Weighing device 2-4, weighing workbench 2-5, display 2-6, photoelectric sensor and inkjet printer 2-7. Weighing device 2- is fixedly installed on the upper part of the weighing workbench 2-5. 4. The upper part of the weighing device 2-4 is connected to the checkweighing roller frame 2-3. The upper part of the checkweighing roller frame 2-3 is installed with the checkweighing roller set 2-2 through the bracket. After the checkweighing workbench 2-5 The display 2-6 is installed through the check-weighing display bracket 2-1; the second belt tightening section 3 has the same structure as the first belt tightening section 1 and has the opposite direction; the front of the check-weighing display bracket 2-1 is installed with a photoelectric The sensor and inkjet printer 2-7, the photoelectric sensor and inkjet printer 2-7 are facing the center point of the check weighing roller set 2-2. In order to enable the driving roller set 1-1 to drive the workpiece conveying belt 4, the driving roller set 1-1 is driven by a motor. In order to prevent the workpiece conveying belt 4 from deflecting, the tension roller installation frame 1-2 and the checkweighing roller group frame 2-3 are equipped with anti-deviation rollers. In order to enable the equipment to automatically push unqualified workpieces into the basket next to the checkweigher, the monitor bracket 2-1 is equipped with a workpiece push-out telescopic arm. In order to enable the equipment to reduce the impact of belt tightness on the checkweighing as much as possible, the tensioning roller mounting frames of the first belt tensioning section 1 and the second belt tensioning section 3 are equipped with tension sensors.

When in use, install the pass-through checkweigher and embed it into the production line, and the equipment can be put into operation. The utility model with the patent number CN216271643U discloses a belt-type automatic checkweigher, which includes a base. An installation frame is installed on the top of the base. A stopper assembly is provided on the top of the installation frame. Fixed mounting brackets are fixed on both sides of the outer surface of the installation frame. plate, a motor is installed on the top of the fixed plate, the output ends of the two motors are connected to transmission rollers, a transmission belt is sleeved between the two transmission rollers, and a belt cleaning component is provided below the inside of the mounting frame. The utility model is provided with a belt cleaning component. When the conveyor belt transports items, the main pulley will rotate, and then drive the belt and the slave pulley to rotate. The rotation of the slave pulley can drive the movable shaft to rotate, and the movable shaft drives the cleaning The roller rotates. Since the cleaning roller is in contact with the conveyor belt, the cleaning roller can clean the impurities attached to the surface of the conveyor belt after rotating, preventing impurities from adhering to the conveyor belt and affecting the accuracy of weighing items, and improving the accuracy of weighing items. Stability after placement on conveyor belt. However, this application plan is mainly to solve the problem of dirty belts, but does not solve the problem of repeated check-weighing. By embedding a pass-through checkweigher on the production line and adding photoelectric sensors and inkjet printers 2-7, workpieces can be automatically weighed, workpieces with large errors can be eliminated, and unqualified workpieces can be marked with Weight error can effectively improve the efficiency of check-weighing work.

When the utility model is in use, the specific work is as follows:

When in use, the equipment is installed and embedded in the production line. When the workpiece is transferred to the workpiece transfer belt 4 of the first belt tensioning section 1 via the production line conveyor belt, the workpiece transfer belt 4 continues under the action of the driving roller set 1-1. Moving forward, after the workpiece reaches the bottom of the photoelectric sensor and inkjet printer 2-7, the photoelectric sensor in the photoelectric sensor and inkjet printer 2-7 senses the workpiece, and the signal can be transmitted to the checkweighing display bracket 2-1 The control machine in the control machine controls the driving roller group 1-1 of the first belt tensioning section 1 to stop, so that the workpiece stays between the photoelectric sensor and the inkjet printer 2-7. At this time, in order to ensure the tight belt Without affecting the accuracy of the weighing device 2-4, the control machine can control the tensioning roller installation frame. The tensioning control machine 1-4 controls the gear to drive the tensioning roller installation frame 1-2 along the track to the check-weighing section. 2 moves, and then the workpiece conveying belt 4 is relaxed, and the weighing device 2-4 can start to work. When the weight is checked, the result is returned to the control machine. If the control machine determines that the workpiece is normal, the control machine can control the tensioning roller. The control gear of the installation frame tensioning control machine 1-4 drives the tensioning roller installation frame 1-2 to move along the track in the opposite direction of the checkweighing section 2, thereby tightening the workpiece conveying belt 4 and driving the roller group 1-1 Continue to work and drive the workpiece conveyor belt 4 to take the workpiece to the next section. If the control machine determines that the weight of the workpiece is abnormal, the control machine will calculate the difference in workpiece weight based on the data returned by the weighing device 2-4 and control the photoelectric sensor. and the inkjet printer in the inkjet printer 2-7 marks the surface of the workpiece, and then the display bracket 2-1 is equipped with a workpiece push-out telescopic arm to push the unqualified workpiece out of the workpiece conveyor belt 4, causing it to drop to a basket placed aside. in the basket.

Claims (5)

1. A pass-through checkweigher, including a checkweighing section (2) and a workpiece conveying belt (4), characterized by a first belt tensioning section (1), a checkweighing section (2) and a second belt tensioning section (3) The workpiece is transferred by the workpiece transfer belt (4); the first belt tensioning section (1) includes a driving roller group (1-1), a tensioning roller installation frame (1-2), a belt tensioning section The tensioning table (1-3) and the tensioning roller installation frame tensioning control machine (1-4), the driving roller group (1-1) is installed on the upper part of the tensioning roller installation frame (1-2) through the bracket , the tensioning roller installation frame (1-2) moves back and forth on the upper part of the belt tensioning workbench (1-3) through slide rails and rollers, and the tensioning roller installation frame tensioning control machine (1-4) is fixed by screws The toothed belt is installed on the lower surface of the belt tensioning workbench (1-3) and meshes with the toothed belt on the lower surface of the tensioning roller mounting frame (1-2); the checkweighing section (2) includes a checkweighing display bracket ( 2-1), check weighing roller set (2-2), check weighing roller set frame (2-3), weighing device (2-4), check weighing workbench (2-5), display (2 -6) and photoelectric sensor and inkjet printer (2-7), the weighing device (2-4) is fixedly installed on the upper part of the weighing workbench (2-5), and the upper part of the weighing device (2-4) is connected to the weighing device The roller set frame (2-3), the upper part of the check weighing roller set frame (2-3) is installed with the check weighing roller set (2-2) through the bracket, and the rear part of the check weighing workbench (2-5) passes the check weighing The display bracket (2-1) installs the display (2-6); the second belt tensioning section (3) has the same structure and the opposite direction as the first belt tensioning section (1); the check-weighing display bracket (2- 1) Install the photoelectric sensor and inkjet printer (2-7) at the front, and the photoelectric sensor and inkjet printer (2-7) are facing the center point of the check weighing roller set (2-2). 2. The pass-through checkweigher according to claim 1, characterized in that the driving roller set (1-1) is driven by a motor. 3. The pass-through checkweigher according to claim 1 or 2, characterized in that the tension roller installation frame (1-2) and the checkweighing roller set frame (2-3) are equipped with anti- Deflection roller. 4. The pass-through checkweigher according to claim 1, characterized in that the display bracket (2-1) is equipped with a workpiece push-out telescopic arm. 5. The pass-through checkweigher according to claim 1 or 4, characterized in that the tensioning roller mounting frame of the first belt tensioning section (1) and the second belt tensioning section (3) All equipped with tension sensors.