Barrel-making assembly line air tightness shunting detection system and detection method

Abstract

The invention belongs to the technical field of container sealing performance detection equipment, and particularly provides a barrel-making assembly line air tightness shunting detection system and a detection method wherein the barrel-making assembly line air tightness shunting detection system comprises a conveyor belt, a detection section and a pressure head mechanism; the invention discloses a barrel making assembly line air tightness shunting detection method. The method comprises a feeding process, a detection process and a discharging and removing process. The specific process comprises the steps that a feeding procedure of a first detection interval is executed; an air tightness detection process of the first detection section is executed, and meanwhile a feeding process of the second detection section is executed; the blanking and rejecting procedure of the first detection section is executed, and meanwhile the air tightness detection procedure of the second detection section is executed; and carrying out the blanking and rejecting processes of the second detection interval, and starting the next working cycle, namely sequentially and repeatedly carrying out the steps 1, 2 and 3. According to the scheme, the effect of batch detection can be achieved through the detection intervals, and the effect of uninterrupted detection is achieved through alternate operation of the two detection intervals.

Description

Technical Field

[0001] The invention belongs to the technical field of container sealing detection equipment, and in particular provides an airtightness diversion detection system and a detection method for a barrel making production line. Background Art

[0002] Liquid barrels are common liquid containers in industrial production and daily life, and their manufacturing process involves several key steps. First, the barrel body is formed by forming and welding the iron plate in the barrel making workshop; then, the barrel bottom and barrel shoulder (the top part used to fasten the barrel cover) are assembled to the bottom and top of the barrel body through the spinning process. The accuracy of the welding and spinning process directly determines the airtightness of the barrel. In actual production, fluctuations in the voltage and current of the welding machine, as well as deviations in the thickness and length of the iron plate, may lead to a decrease in the quality of the barrel body weld, thereby affecting the sealing performance. In addition, the deformation of the barrel bottom and barrel shoulder during the spinning process and insufficient spinning force will also have a negative impact on the sealing.

[0003] Taking the barrel welding machine and spinning machine currently in use on the market as an example, the production efficiency of small-capacity barrel processing is about 40 per minute. The airtightness detection equipment is generally a single barrel test, and the detection efficiency is difficult to meet the needs of production equipment, so it is necessary to cooperate with manual visual screening to complete the detection work. The inspectors may experience visual fatigue, resulting in unstable detection efficiency. The barrels that are missed may have problems such as liquid leakage during the subsequent filling and transportation of liquid materials, affecting the normal development of production and transportation. Summary of the invention

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a barrel making line air tightness diversion detection system, comprising a conveyor belt, a detection zone and a pressure head mechanism, the conveyor belt is arranged in the detection zone, and the two ends of the conveyor belt extend to the front-end assembly line and the rear-end assembly line respectively, and a plurality of pressure head mechanisms are evenly arranged in the detection zone;

[0005] There are two detection intervals, namely, detection interval No. 1 and detection interval No. 2, the two detection intervals are arranged in parallel, and a gap is left between the two detection intervals;

[0006] The conveyor belt is divided into a Y-shaped diversion section, a detection section and an output section. The Y-shaped diversion section is located between the front-end assembly line and the detection section, the detection section is located inside the detection section, and the output section is located at the output side of the detection section. The output section extends in different directions.

[0007] A plurality of counting sensors and a plurality of actuating cylinders are arranged along the conveyor belt.

[0008] Furthermore, the plurality of execution cylinders are divided into diversion execution cylinders, blocking execution cylinders and rejection execution cylinders, the input ends of the two detection intervals are respectively equipped with diversion execution cylinders, the output ends of the two detection intervals are respectively equipped with blocking execution cylinders and rejection execution cylinders, and the rejection execution cylinder is located downstream of the blocking execution cylinder.

[0009] Furthermore, the rejection execution cylinder is arranged outside the two detection zones, and extends from the outside to the inside when the rejection execution cylinder is working.

[0010] Furthermore, the input ends of the two detection intervals are equipped with booster air nozzles, the diversion execution cylinder is located in front of the input port of the detection interval, and the booster air nozzle is located between the detection interval and the diversion execution cylinder.

[0011] Furthermore, the output ends of the two detection intervals are both provided with discharge chains, and the discharge chains are arranged along the conveyor belt.

[0012] Furthermore, the counting sensor includes a shunt counting sensor, an entry counting sensor and an exit counting sensor. The shunt counting sensor is arranged at the intersection of the conveyor belt of the Y-shaped shunt section, the two entry counting sensors are respectively arranged at the input ports of the two detection intervals, and the two exit counting sensors are respectively arranged at the output ports of the two detection intervals.

[0013] Furthermore, the pressure head mechanism includes a lifting cylinder, a connecting column, an upper metal washer, a conical column, a lower metal washer and a bolt. The lifting cylinder is mounted on a frame in the detection section and is located directly above the conveyor belt. The connecting column is mounted on the output end of the lifting cylinder. The upper metal washer is fixedly installed in the middle of the connecting column. The conical column and the lower metal washer are sleeved on the connecting column from bottom to top, and the conical column is squeezed and positioned by the upper metal washer and the lower metal washer. The bolt passes through the lower metal washer from bottom to top and is screwed on the lower end surface of the connecting column. The radius of the upper metal washer is larger than that of the conical column, and an O-ring is installed on the lower surface of the upper metal washer.

[0014] A barrel-making line air tightness diversion detection method, using a barrel-making line air tightness diversion detection system, including a loading process, a detection process, and a unloading and rejection process;

[0015] The loading process is to start the conveyor belt, input a batch of barrels to be tested into the testing area, mark the input barrels and record the numbers;

[0016] The testing process is that the pressure head mechanism falls, pressurizes the barrel, performs air tightness test, records the serial number of the problematic barrel, and then lifts the pressure head mechanism;

[0017] The unloading and rejection process is to start the conveyor belt to discharge the barrels in the detection interval. During the discharge process, the barrels first pass through the counting sensor and then pass through the execution cylinder. According to the number of the problem barrel recorded in the loading process, the counting sensor identifies the problem barrel. Subsequently, the problem barrel is pushed out of the conveyor belt when passing through the execution cylinder and falls into the gap between the two detection intervals.

[0018] The specific process is as follows:

[0019] Step 1: Execute the loading process of the No. 1 detection area;

[0020] Step 2: perform the air tightness test process of the first test area and perform the material loading process of the second test area at the same time;

[0021] Step 3: perform the material unloading and rejection process in the No. 1 detection zone, and perform the air tightness detection process in the No. 2 detection zone at the same time;

[0022] Step 4: Execute the unloading and rejection process in the second detection area, and start the next work cycle at the same time, that is, repeat steps 1, 2 and 3 in sequence.

[0023] The beneficial effects of using the present invention are:

[0024] The airtightness diversion detection system of this scheme can use conventional profiles to build its main frame, and the conveyor belt and pressure head mechanism can be assembled by purchasing common parts. The overall structure is simple, the production cost is low, and the detection effect is reliable;

[0025] The detection interval of this solution can achieve the effect of batch detection, and adopts a dual detection interval design. By alternating the two detection intervals, the effect of uninterrupted detection can be achieved, effectively improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A top view of the present invention;

[0027] Figure 2 It is a schematic diagram of the pressing head mechanism of the present invention in a lifted state;

[0028] Figure 3 It is an axial section view of the pressure head mechanism of the present invention;

[0029] Figure 4 It is a schematic diagram of the falling state of the pressure head mechanism of the present invention;

[0030] Reference numerals include:

[0031] 1. Conveyor belt; 2. Detection area;

[0032] 3. Pressure head mechanism; 301. Lifting cylinder; 302. Connecting column; 303. Upper metal washer; 304. Conical column; 305. Lower metal washer; 306. Bolt; 307. Silicone sealing washer; 308. O-type sealing rubber ring; 309. Three-way joint; 310. Air pressure detection sensor; 311. Inlet check valve;

[0033] 4. Diverter actuator cylinder; 5. Block actuator cylinder; 6. Rejection actuator cylinder; 7. Booster air nozzle; 8. Discharge chain; 9. Diverter counting sensor; 10. Entry counting sensor; 11. Delivery counting sensor; 12. Bucket. DETAILED DESCRIPTION

[0034] The present invention is described in detail below with reference to the accompanying drawings.

[0035] Embodiment 1

[0036] Reference Figure 1-Figure 4 , a barrel making line air tightness diversion detection system, comprising a conveyor belt 1, a detection zone 2 and a pressure head mechanism 3, the conveyor belt 1 is arranged in the detection zone 2, and the two ends of the conveyor belt 1 extend to the front-end assembly line and the rear-end assembly line respectively, and a plurality of pressure head mechanisms 3 are evenly arranged in the detection zone 2;

[0037] There are two detection intervals 2, namely, detection interval No. 1 and detection interval No. 2. The two detection intervals 2 are arranged in parallel. The conveyor belt 1 is divided into a Y-shaped diversion section, a detection section and an output section. The Y-shaped diversion section is located between the front-end assembly line and the detection interval 2, and is used to divert the barrels 12 conveyed by the front-end assembly line into the two detection intervals 2 in batches. The detection section is located inside the detection interval 2, and the output section is located on the output side of the detection interval 2. The output section extends in different directions;

[0038] Among them, limited guardrails are set on both sides of the conveyor belt of the detection section, and the spacing of the limited guardrails on both sides matches the width of the barrel;

[0039] A plurality of counting sensors and a plurality of actuating cylinders are arranged along the conveyor belt 1;

[0040] A gap is left between the two detection zones 2, and the width of the gap is greater than the diameter of the barrel 12. The gap is used to temporarily store the barrel 12 with airtightness problems.

[0041] Preferably, a barrel making line air tightness diversion detection system is equipped with an open source PLC controller electrical system.

[0042] When the barrel 12 passes through the position of the input port of the detection zone 2 during the process of being input into the detection zone 2, each barrel 12 is marked by a counting sensor.

[0043] The specifications of the pressure head mechanism 3 correspond to the barrel 12 to be tested. The pressure head mechanism 3 can completely block the barrel mouth of the barrel 12 after being pressed down. The external air supply equipment pressurizes the barrel 12 through the pressure head mechanism 3, and monitors the pressure in the barrel 12 through the sensor. When the pressure reaches a preset value, the pressure is stopped, and the pressure in the barrel 12 is continuously monitored. Within the preset detection time, if there is no obvious change in the pressure in the barrel 12, it is determined that the air tightness of the current barrel 12 is good. Otherwise, if the pressure in the barrel 12 changes significantly, it is determined that there is a problem with the air tightness of the current barrel 12.

[0044] The plurality of execution cylinders are divided into a diversion execution cylinder 4, a blocking execution cylinder 5 and a rejection execution cylinder 6. The input ends of the two detection intervals 2 are respectively equipped with a diversion execution cylinder 4, and the output ends of the two detection intervals 2 are respectively equipped with a blocking execution cylinder 5 and a rejection execution cylinder 6, and the rejection execution cylinder 6 is located downstream of the blocking execution cylinder 5.

[0045] The two diversion execution cylinders 4 are in an extended state and a contracted state respectively. Correspondingly, the two detection intervals 2 are in a closed state and an open state respectively. The two diversion execution cylinders 4 are alternately extended and retracted to make the two detection intervals 2 open alternately, and cooperate with the conveyor belt 1 to transport multiple barrels 12 to be detected into the detection interval 2 respectively.

[0046] Among them, the blocking execution cylinder 5 can effectively control the positions of multiple barrels arranged on the left and right conveying chain plates to ensure that the round mouth of the shoulder of each barrel faces the upper pressure head mechanism 3 during the air tightness test;

[0047] Specifically, when the barrel 12 is transported from the front-end assembly line to the Y-shaped diversion section of the conveyor belt 1, a gap is left between two adjacent barrels 12. When the barrel 12 enters the detection interval 2, the blocking execution cylinder 5 extends, and the barrel 12 at position No. 1 of this batch in the detection interval 2 is stopped when it moves to the end of the detection interval 2. The barrel 12 at position No. 2 continues to move forward until it contacts the barrel 12 at position No. 1, until all the barrels 12 of this batch enter the detection interval 2.

[0048] Preferably, the rejection execution cylinder 6 is arranged outside the two detection zones 2, and the rejection execution cylinder 6 extends from the outside to the inside when working.

[0049] The input ends of the two detection intervals 2 are equipped with booster air nozzles 7 , the diversion execution cylinder 4 is located in front of the input port of the detection interval 2 , and the booster air nozzle 7 is located between the detection interval 2 and the diversion execution cylinder 4 .

[0050] The output ends of the two detection zones 2 are both provided with a discharge chain 8 , and the discharge chain 8 is arranged along the conveyor belt 1 .

[0051] Specifically, the counting sensors include a diversion counting sensor 9, an entry counting sensor 10 and an exit counting sensor 11. The diversion counting sensor 9 is arranged at the intersection of the conveyor belt 1 of the Y-shaped diversion section, the two entry counting sensors 10 are respectively arranged at the input ports of the two detection intervals 2, and the two exit counting sensors 11 are respectively arranged at the output ports of the two detection intervals 2.

[0052] The pressure head mechanism 3 includes a lifting cylinder 301, a connecting column 302, an upper metal washer 303, a conical column 304, a lower metal washer 305 and a bolt 306. The lifting cylinder 301 is assembled on the frame of the detection section 2 and is located directly above the conveyor belt 1. The connecting column 302 is assembled on the output end of the lifting cylinder 301. The upper metal washer 303 is fixedly installed in the middle of the connecting column 302. The conical column 304 and the lower metal washer 305 are sleeved on the connecting column 302 from bottom to top, and the conical column 304 is squeezed and positioned by the upper metal washer 303 and the lower metal washer 305. The bolt 306 passes through the lower metal washer 305 from bottom to top and is screwed on the lower end surface of the connecting column 302. The radius of the upper metal washer 303 is larger than that of the conical column 304, and an O-type sealing rubber ring 308 is installed on the lower surface of the upper metal washer 303.

[0053] An air delivery channel is provided inside the connecting column 302 , a through hole is provided in the center of the bolt 306 , one end of the air delivery channel is connected to the through hole, and the other end of the air delivery channel is connected to an external air supply device.

[0054] The top end surface of the conical cylinder 304 is larger than the bottom end surface, and the top diameter matches the inner diameter of the barrel 12;

[0055] When the pressure head mechanism 3 falls and cooperates with the barrel 12, if there is a small error in the coaxiality between the position of the barrel 12 and the pressure head mechanism 3, the conical cylinder 304 can guide the barrel 12 to move and calibrate the error.

[0056] A silicone sealing gasket 307 is press-fitted between the upper metal gasket 303 , the lower metal gasket 305 and the end surface of the conical column 304 .

[0057] Specifically, a three-way joint 309 is provided on the connecting pipeline between the gas transmission channel and the external gas supply device, an intake check valve 311 is installed at the intake port of the three-way joint 309, and an air pressure detection sensor 310 is installed on the branch of the three-way joint 309.

[0058] Embodiment 2

[0059] A barrel-making line air tightness diversion detection method, which uses a barrel-making line air tightness diversion detection system in the first embodiment, and its processes include a loading process, a detection process, and a unloading and rejection process;

[0060] The loading process is to start the conveyor belt 1, input a batch of barrels 12 to be inspected into the inspection zone 2, mark the input barrels 12 and record the numbers;

[0061] The testing process is that the pressure head mechanism 3 falls down to pressurize the barrel 12, perform air tightness testing, and record the serial number of the problematic barrel 12, and then lift the pressure head mechanism 3;

[0062] The unloading and rejection process is to start the conveyor belt 1 to discharge the barrel 12 in the detection interval 2. During the discharge process, the barrel 12 first passes through the counting sensor and then passes through the rejection execution cylinder 6. According to the number of the problem barrel 12 recorded in the loading process, the counting sensor identifies the problem barrel. Subsequently, the problem barrel is pushed out of the conveyor belt when passing through the rejection execution cylinder 6 and falls into the gap between the two detection intervals 2.

[0063] A method for detecting the air tightness of a barrel production line by splitting the flow, the specific process of which is as follows:

[0064] Step 1: Execute the loading process of the No. 1 detection area;

[0065] Step 2: perform the air tightness test process of the first test area and perform the material loading process of the second test area at the same time;

[0066] Step 3: perform the material unloading and rejection process in the No. 1 detection zone, and perform the air tightness detection process in the No. 2 detection zone at the same time;

[0067] Step 4: Execute the unloading and rejection process in the second detection area, and start the next work cycle at the same time, that is, repeat steps 1, 2 and 3 in sequence.

[0068] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, many changes can be made in the specific implementation methods and application scopes based on the ideas of the present invention. As long as these changes do not deviate from the concept of the present invention, they all belong to the protection scope of the present invention.

Claims

1. A barrel making line air tightness diversion detection system, characterized by: It includes a conveyor belt, a detection zone and a pressure head mechanism. The conveyor belt is arranged in the detection zone, and the two ends of the conveyor belt extend to the front-end assembly line and the rear-end assembly line respectively. A plurality of pressure head mechanisms are evenly arranged in the detection zone. There are two detection intervals, namely, detection interval No. 1 and detection interval No. 2, the two detection intervals are arranged in parallel, and a gap is left between the two detection intervals; The conveyor belt is divided into a Y-shaped diversion section, a detection section and an output section. The Y-shaped diversion section is located between the front-end assembly line and the detection section, the detection section is located inside the detection section, and the output section is located at the output side of the detection section. The output section extends in different directions. A plurality of counting sensors and a plurality of actuating cylinders are arranged along the conveyor belt.

2. According to the barrel making line air tightness diversion detection system described in claim 1, it is characterized by: The multiple execution cylinders are divided into diversion execution cylinders, blocking execution cylinders and rejection execution cylinders. The input ends of the two detection intervals are respectively equipped with diversion execution cylinders, and the output ends of the two detection intervals are respectively equipped with blocking execution cylinders and rejection execution cylinders, and the rejection execution cylinder is located downstream of the blocking execution cylinder.

3. According to the barrel making line air tightness diversion detection system as described in claim 2, it is characterized by: The rejection execution cylinder is arranged outside the two detection zones, and extends from the outside to the inside when the rejection execution cylinder is working.

4. According to the barrel making line air tightness diversion detection system of claim 1, it is characterized by: The input ends of the two detection intervals are equipped with booster air nozzles, the diversion execution cylinder is located in front of the input port of the detection interval, and the booster air nozzle is located between the detection interval and the diversion execution cylinder.

5. According to the barrel making line air tightness diversion detection system of claim 1, it is characterized by: The output ends of the two detection zones are both provided with discharge chains, and the discharge chains are arranged along the conveyor belt.

6. According to the barrel making line air tightness diversion detection system of claim 1, it is characterized by: The counting sensors include a shunt counting sensor, an entry counting sensor and an exit counting sensor. The shunt counting sensor is arranged at the intersection of the conveyor belt of the Y-shaped shunt section, the two entry counting sensors are respectively arranged at the input ports of the two detection intervals, and the two exit counting sensors are respectively arranged at the output ports of the two detection intervals.

7. According to the barrel making line air tightness diversion detection system of claim 1, it is characterized by: The pressure head mechanism includes a lifting cylinder, a connecting column, an upper metal washer, a conical column, a lower metal washer and a bolt. The lifting cylinder is mounted on a frame in the detection section and is located directly above the conveyor belt. The connecting column is mounted on the output end of the lifting cylinder. The upper metal washer is fixedly installed in the middle of the connecting column. The conical column and the lower metal washer are sleeved on the connecting column from bottom to top, and the conical column is squeezed and positioned by the upper metal washer and the lower metal washer. The bolt passes through the lower metal washer from bottom to top and is screwed on the lower end surface of the connecting column. The radius of the upper metal washer is larger than that of the conical column, and an O-ring is installed on the lower surface of the upper metal washer.

8. A method for detecting air tightness flow diversion of a barrel making line, using the air tightness flow diversion detection system of a barrel making line as described in claim 1, comprising a loading process, a detection process, and a unloading and rejection process; The loading process is to start the conveyor belt, input a batch of barrels to be tested into the testing area, mark the input barrels and record the numbers; The testing process is that the pressure head mechanism falls, pressurizes the barrel, performs air tightness test, records the serial number of the problematic barrel, and then lifts the pressure head mechanism; The unloading and rejection process is to start the conveyor belt to discharge the barrels in the detection interval. During the discharge process, the barrels first pass through the counting sensor and then pass through the execution cylinder. According to the number of the problem barrel recorded in the loading process, the counting sensor identifies the problem barrel. Subsequently, the problem barrel is pushed out of the conveyor belt when passing through the execution cylinder and falls into the gap between the two detection intervals. The specific process is as follows: Step 1: Execute the loading process of the No. 1 detection area; Step 2: perform the air tightness test process of the first test area and perform the material loading process of the second test area at the same time; Step 3: perform the material unloading and rejection process in the No. 1 detection zone, and perform the air tightness detection process in the No. 2 detection zone at the same time; Step 4: Execute the unloading and rejection process in the second detection area, and start the next work cycle at the same time, that is, repeat steps 1, 2 and 3 in sequence.

Images