High-precision barrel sealing performance detection equipment and detection method thereof

Abstract

The invention discloses airtightness detection equipment, and aims to provide high-precision barrel airtightness detection equipment which is convenient to detect, high in detection efficiency and precision, low in cost and good in use effect and a detection method of the high-precision barrel airtightness detection equipment. The to-be-detected barrel body moves to the sealing detection device on the transmission belt to be detected, and the specific detection mode is that the interior of the to-be-detected barrel body is subjected to inflation pressurization, pressure stabilization and pressure maintaining through an air blowing cylinder arranged on the sealing detection device, and in the process of pressure maintaining of the interior of the to-be-detected barrel body, the pressure of the to-be-detected barrel body is maintained; the device can detect the internal pressure of the barrel body, can judge the sealing performance of the barrel body according to the pressure reduction amount, is good in detection effect, is convenient to operate, can achieve the automatic positioning and fitting of the air blowing cylinder and the opening of the to-be-detected barrel body, is high in overall automation degree, is good in practicality, and is suitable for the technical field of the production of spraying boxes.

Description

Technical Field

[0001] The present invention relates to an air tightness detection device, and more specifically, to a high-precision barrel body airtightness detection device and a detection method thereof. Background Art

[0002] A pesticide spray barrel is a tool used for spraying pesticides in agricultural production, and the barrel body is an important component of the pesticide spray barrel. It is usually made of plastic or metal and has openings for adding pesticides and water and a connection port for connecting a nozzle. During the use of the pesticide spray barrel, in order to prevent pesticides from leaking, after the barrel body is processed and formed, the sealing of the barrel body needs to be tested to ensure the overall sealing performance.

[0003] At present, the sealing detection methods for pesticide spray barrels on the market usually adopt pressure change curve detection, overall water immersion detection, and vacuum detection method. Although the above methods can detect the sealing of the barrel body more accurately, large-scale and high-precision instruments are required during the detection process. The detection time of a single barrel is relatively long. At the same time, the detection instruments are large in size, occupy a large area, are difficult to use, and have high costs. It is difficult to meet the basic production needs and the use effect is poor. Summary of the invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a high-precision barrel sealing detection device and a detection method thereof which are convenient to detect, have high detection efficiency and accuracy, low cost and good use effect.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-precision barrel body sealing detection equipment, comprising a frame, a transmission belt is provided on the frame, a plurality of blocking blocks are evenly provided on the transmission belt along its length direction, and a placement area is formed between each of the blocking blocks. A sealing detection device is also provided on the top of the transmission belt, and the sealing detection device comprises a bracket, a positioning mechanism arranged on both sides of the bracket, and a pressurizing mechanism arranged on the top of the bracket, and the pressurizing mechanism is used to pressurize the inside of the barrel body to detect the sealing of the processed barrel body.

[0006] The present invention is further configured as follows: the size of the placement area matches the size of the bottom surface of the processing barrel body, and a through hole communicating with the outside is provided on the top of the processing barrel body.

[0007] The present invention is further configured as follows: the positioning mechanism includes a positioning cylinder arranged on a frame and a positioning plate arranged on the positioning cylinder, a plurality of positioning columns are provided on the positioning plate, the positioning columns are configured to extend and retract on the positioning plate and make the shape of the positioning columns match the outer walls on both sides of the barrel body, and a locking wrench is also provided on the positioning plate, and the locking wrench is used to fix the positioning column to ensure that the distance the positioning column extends out of the positioning plate remains unchanged.

[0008] The present invention is further configured as follows: the pressurizing mechanism comprises a sliding member arranged on the bracket and an air blow cylinder arranged on the sliding member, and the diameter of the air blow cylinder matches the diameter of the through hole of the processing barrel body.

[0009] Preferably, a rubber film is provided on the side wall of the air cylinder, an air outlet is provided on the air cylinder, one end of the air cylinder is connected to a fan, and the air cylinder is used to be inserted into the barrel body and ventilate the inside of the barrel body.

[0010] The present application also provides a detection method for a high-precision barrel sealing detection device, wherein an air pressure detection device is also provided at the bottom of the blow tube, one end of the air pressure detection device is electrically connected to the control center, and one end of each positioning column arranged in the pressure plate is also provided with a pressure sensor, the pressure sensor is used to detect the contact state of each positioning column with the barrel surface, the air pressure detection device is used to detect the air pressure change inside the barrel and upload it to the control center for information processing, and an infrared sensor is also provided at the bottom of the bracket, the infrared sensor is used to detect whether there is a barrel on the placement area, and the control method includes the following steps: S1, before processing, the staff loosens the locking wrench on the positioning plate, and puts the matching barrel for matching the positioning column into the placement area, so that the position of the matching barrel matches the position of the positioning plate, and the position of the through hole on the top of the matching barrel matches the position of the blow tube;

[0011] S2, the sliding member drives the blowing cylinder to move downward and extend into the interior of the matching barrel, so that the matching barrel is fixed in the placement area;

[0012] S3, the positioning cylinder drives the positioning plate to move toward the matching barrel body, and at the same time, the pressure sensors on each positioning column detect the pressure value. If the pressure sensor on the positioning column arranged in the middle of the pressure plate detects that the pressure value rises, it is judged that the current positioning column and the side wall of the matching barrel body are matched. The device notifies the staff to tighten the locking wrench and jumps to S4 for sealing detection. Otherwise, the positioning cylinder continues to move;

[0013] S4, the staff places the barrel to be inspected in the placement area of ​​the transmission belt, the transmission belt drives the barrel to be inspected to move, and the infrared sensor detects the current placement area. If the infrared sensor does not detect the existence of the barrel to be inspected, it is determined that there is no barrel in the current placement area, and the transmission belt continues to move to the next placement area. On the contrary, if the infrared sensor detects the existence of a processed barrel, it jumps to S5 to continue detection;

[0014] S5, the positioning cylinder drives the positioning plates on both sides of the barrel to be detected to move toward the barrel to be detected, and at the same time, the pressure detection device on the positioning column detects the pressure change of the positioning column. If the pressure detection device detects the pressure change, it is determined that the positioning columns at both ends of the barrel to be detected are in contact with the barrel to be detected, and the process jumps to S6 for pressure detection. Otherwise, the positioning cylinder continues to drive the positioning plate to move;

[0015] S6, the sliding member drives the air cylinder to move downward, and the air cylinder matches the through hole on the top of the barrel to be tested, forming a seal inside the barrel to be tested;

[0016] S7, the air blower is used to ventilate and pressurize the barrel to be tested, and the ventilation time is T;

[0017] S8, set the detection pressure to P. After the T time period, the air pressure detection device detects the pressure value P1 in the current barrel to be detected. If P1 < P, it is determined that the pressure in the current barrel to be detected is insufficient, and the blow tube continues to ventilate. On the contrary, if P1 ≥ P, it is determined that the pressure value in the current barrel to be detected is sufficient, and jump to S9 to continue the pressure maintenance test;

[0018] S9, the air blower stops blowing and keeps the barrel to be tested sealed for T1;

[0019] S10. After the T1 time period, the air pressure detection device detects the pressure value P2 in the current barrel to be detected. If P1-P2≥1.2, it is judged that the sealing performance of the current barrel to be detected is poor and unqualified. Conversely, if P1-P2<1.2, it is judged that the sealing performance of the current barrel to be detected is qualified.

[0020] By adopting the above technical scheme, the beneficial effects are as follows: 1. By arranging a transmission belt for transporting the barrel body to be inspected on the frame, the barrel body to be inspected is moved on the transmission belt to the sealing detection device for inspection. The specific detection method is that the inside of the barrel body to be inspected is inflated, pressurized, stabilized and maintained by an air blower arranged on the sealing detection device. In the process of maintaining the pressure inside the barrel body to be inspected, the pressure inside the barrel body can be detected, and the sealing performance of the barrel body can be judged according to the pressure reduction. The detection effect is good and the operation is convenient. At the same time, the air blower and the opening of the barrel body to be inspected can be automatically positioned and fitted. The overall degree of automation is high and the practicality is good.

[0021] 2. Furthermore, in order to improve the positioning effect of the barrel body and enable the equipment to adapt to barrel bodies of different shapes, a positioning mechanism is provided on the device, and the positioning mechanism has a positioning plate and a positioning column that can be retracted and extended on the positioning plate. After the positioning column is retracted and transformed on the positioning plate, it will form a shape matching the outer wall of the barrel body to be detected, and after the transformation is completed, it is locked by a locking wrench so that the positioning mechanism fits the outer wall of the barrel body to be detected, thereby fixing the barrel body to be detected. At the same time, the pressurizing mechanism includes a sliding member arranged on the bracket and an air blower arranged on the sliding member. Specifically, the position of the air blower on the bracket can be adjusted by moving on the sliding member, so that the air blower can match the position of the opening of the barrel body to be detected on the transmission belt, so that the air blower can be inserted into the opening of the barrel body to be detected. The positioning accuracy is high, so that the device can adapt to barrel bodies of different shapes, thereby increasing the scope of use. Moreover, after the barrel body is switched, the position of the air blower and the shape of the positioning column can be automatically adjusted, and the degree of automation is high.

[0022] 3. At the same time, in order to improve the positioning accuracy of the sealing detection device on the barrel body to be detected during the detection process, it is necessary to make the opening on the top of the barrel body to be detected match the position of the air cylinder when the positioning mechanism positions the barrel body to be processed, and maintain the stability of the barrel body to be detected during the process of inserting the air cylinder to detect the air tightness of the barrel body. Before the detection, the shape of the positioning column on the positioning plate is adjusted to adapt to barrel bodies to be detected in different shapes. Specifically, the locking wrench on the positioning plate is loosened to allow the positioning column to slide on the positioning plate. At the same time, before adjusting the shape of the positioning column, the barrel body to be detected is fixed by the air cylinder to prevent the positioning column from conflicting with the barrel body to be detected after the positioning cylinder pushes the positioning plate, thereby causing the movement of the barrel body to be detected. The positioning column is also provided with a pressure sensor. When the pressure sensor detects that the pressure value of the positioning column located in the middle of the pressure plate rises, it is judged that the positioning column in the middle of the pressure plate cannot continue to shrink, and the shape of the positioning mechanism matches the shape of the current barrel body to be processed. At this time, the locking wrench is tightened to fix the position of the positioning column on the positioning plate. When the positioning cylinder pushes the positioning plate to move toward the barrel body to be inspected, if the position of the barrel body to be inspected is offset and does not match the sealing detection device, the positioning column conflicts with the side wall of the barrel body to be inspected, so that the barrel body to be inspected moves to the corresponding position, thereby realizing automatic positioning of the barrel body to be inspected. The degree of automation is high, the use effect is good, and the positioning before detection and the fixation of the barrel body to be detected during the detection process can be automatically realized, and the processing effect is good.

[0023] 4. In order to accurately detect the sealing of the barrel to be inspected, an infrared sensor is provided at the bottom of the bracket, which can control the air blower to detect the barrel when the barrel is detected to pass, thereby improving the detection efficiency. The air blower is provided with an air pressure detection device. When the inside of the barrel to be inspected is inflated for detection, the air pressure detection device will detect an increase in the pressure value. At the same time, the threshold of the air pressure in the barrel is set to P. When the air pressure in the barrel is filled to P, the next step is jumped to perform pressure maintenance detection. If the P value is not reached, the inflation continues. Similarly, as an optimization of the solution, the maximum inflation time can be selectively added to the inflation detection. Generally speaking, if the sealing performance of the barrel is good, it will inevitably reach the P pressure after a period of inflation. value. If the current barrel body does not reach the P pressure value after long-term use, it is judged that the current barrel body is leaking while inflating. Furthermore, in the process of pressure-maintaining detection of the barrel body, if the sealing performance of the barrel body is good, then during the continuous pressure-maintaining time, the pressure value measured by the air pressure detection device has a small drop. When the pressure value drop is less than the set value, it is judged that the current barrel body to be detected is qualified. At the same time, in order to reduce the influence of external factors on the air tightness of the device, a rubber film is provided on the side wall of the air blow tube. When the air blow tube is inserted into the through hole of the barrel body to be detected, the rubber film on the side wall of the through hole forms a seal with the through hole of the barrel body to be detected, with good sealing, which effectively prevents gas from leaking from the through hole, improves the accuracy of the air tightness detection process, and has a good detection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a specific structural schematic diagram of an embodiment of a high-precision barrel sealing detection device and a detection method thereof of the present invention;

[0025] Figure 2 A schematic diagram of the barrel structure of an embodiment of a high-precision barrel sealing detection device and a detection method thereof according to the present invention;

[0026] Figure 3 It is a schematic diagram of the specific structure of the positioning mechanism of an embodiment of a high-precision barrel sealing detection device and a detection method thereof of the present invention;

[0027] Figure 4 It is a schematic diagram of the specific structure of a pressurizing mechanism of an embodiment of a high-precision barrel sealing detection device and a detection method thereof of the present invention;

[0028] Figure 5 This is the first part of the flow chart of the detection method of the embodiment of a high-precision barrel sealing detection device and a detection method thereof of the present invention;

[0029] Figure 6 The second part of the flow chart of the detection method of the embodiment of the high-precision barrel sealing detection device and the detection method thereof of the present invention;

[0030] The reference numerals in the figure are: 1. frame; 2. transmission belt; 3. blocking block; 4. placement area; 5. sealing detection device; 6. bracket; 7. positioning mechanism; 71. positioning cylinder; 72. positioning plate; 73. positioning column; 74. locking wrench; 8. pressurizing mechanism; 81. sliding part; 82. blow cylinder; 83. rubber membrane; 84. air outlet; 9. barrel; 91. through hole. DETAILED DESCRIPTION

[0031] Reference Figures 1 to 6 The present invention further describes a high-precision barrel sealing detection device and a detection method embodiment thereof.

[0032] For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" and the like are used in the embodiments to illustrate the relationship of one element or feature shown in the figure relative to another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here can be interpreted accordingly.

[0033] Furthermore, relational terms such as “first” and “second” and the like are merely used to distinguish one component from another having the same name, but do not necessarily require or imply any such actual relationship or order between these components.

[0034] A high-precision barrel body sealing detection equipment comprises a frame 1, a transmission belt 2 is arranged on the frame 1, a plurality of blocking blocks 3 are evenly arranged on the transmission belt 2 along its length direction, a placement area 4 is formed between each of the blocking blocks 3, a sealing detection device 5 is also arranged on the top of the transmission belt 2, the sealing detection device 5 comprises a bracket 6, a positioning mechanism 7 arranged on both sides of the bracket 6 and a pressurizing mechanism 8 arranged on the top of the bracket 6, the pressurizing mechanism 8 is used to pressurize the inside of the barrel body 9 to detect the sealing of the processed barrel body 9.

[0035] The size of the placement area 4 matches the size of the bottom surface of the processing barrel body 9, and a through hole 91 communicating with the outside is provided on the top of the processing barrel body 9.

[0036] The positioning mechanism 7 includes a positioning cylinder 71 arranged on the frame 1 and a positioning plate 72 arranged on the positioning cylinder 71. The positioning plate 72 is provided with a plurality of positioning columns 73. The positioning columns 73 are configured to be retracted on the positioning plate 72 and to make the shape of the positioning columns 73 match the outer walls on both sides of the barrel body 9. The positioning plate 72 is also provided with a locking wrench 74, and the locking wrench 74 is used to fix the positioning column 73 to ensure that the distance at which the positioning column 73 extends out of the positioning plate 72 remains unchanged.

[0037] The pressurizing mechanism 8 comprises a sliding member 81 arranged on the bracket 6 and a blow cylinder 82 arranged on the sliding member 81 . The diameter of the blow cylinder 82 matches the diameter of the through hole 91 of the processing barrel body 9 .

[0038] Preferably, a rubber film 83 is provided on the side wall of the air cylinder 82 , an air outlet 84 is provided on the air cylinder 82 , one end of the air cylinder 82 is connected to a fan, and the air cylinder 82 is used to be inserted into the barrel body 9 and ventilate the inside of the barrel body 9 .

[0039] By arranging a transmission belt 2 for transporting the barrel body 9 to be inspected on the frame 1, the barrel body 9 to be inspected is moved on the transmission belt 2 to the sealing detection device 5 for inspection of the barrel body 9. The specific inspection method is that the interior of the barrel body 9 to be inspected is inflated, pressurized, stabilized and maintained by the air blow tube 82 arranged on the sealing detection device 5. In the process of maintaining the pressure inside the barrel body 9 to be inspected, the pressure inside the barrel body 9 can be detected, and the sealing performance of the barrel body 9 can be judged according to the pressure reduction. The inspection effect is good and the operation is convenient. At the same time, the air blow tube 82 and the opening of the barrel body 9 to be inspected can be automatically positioned and fitted, and the overall degree of automation is high and the practicality is good.

[0040] Further, in order to improve the positioning effect of the barrel body 9 and enable the device to adapt to barrel bodies 9 of different shapes, a positioning mechanism 7 is provided on the device, and the positioning mechanism 7 has a positioning plate 72 and a positioning column 73 that can be telescopic on the positioning plate 72. After the positioning column 73 is telescopically transformed on the positioning plate 72, it will form a shape that matches the outer wall of the barrel body 9 to be detected, and after the transformation is completed, it is locked by a locking wrench 74, so that the positioning mechanism 7 fits the outer wall of the barrel body 9 to be detected, thereby fixing the barrel body 9 to be detected. At the same time, the pressurizing mechanism 8 includes a bracket provided on the bracket. 6 and a blow tube 82 arranged on the slide 81. Specifically, the position of the blow tube 82 on the bracket 6 can be adjusted by moving on the slide 81, so that the blow tube 82 can match the position of the opening of the barrel body 9 to be detected on the transmission belt 2, which is convenient for the blow tube 82 to be inserted into the opening of the barrel body 9 to be detected. The positioning accuracy is high, so that the device can adapt to barrel bodies 9 of different shapes, thereby improving the scope of use. After the barrel body 9 is switched, the position of the blow tube 82 and the shape of the positioning column 73 can be automatically adjusted, and the degree of automation is high.

[0041] The present application also provides a detection method for a high-precision barrel sealing detection device, wherein an air pressure detection device is also provided at the bottom of the blow tube, one end of the air pressure detection device is electrically connected to the control center, and one end of each positioning column arranged in the pressure plate is also provided with a pressure sensor, the pressure sensor is used to detect the contact state of each positioning column with the barrel surface, the air pressure detection device is used to detect the air pressure change inside the barrel and upload it to the control center for information processing, and an infrared sensor is also provided at the bottom of the bracket, the infrared sensor is used to detect whether there is a barrel on the placement area, and the control method includes the following steps: S1, before processing, the staff loosens the locking wrench on the positioning plate, and puts the matching barrel for matching the positioning column into the placement area, so that the position of the matching barrel matches the position of the positioning plate, and the position of the through hole on the top of the matching barrel matches the position of the blow tube;

[0042] S2, the sliding member drives the blowing cylinder to move downward and extend into the interior of the matching barrel, so that the matching barrel is fixed in the placement area;

[0043] S3, the positioning cylinder drives the positioning plate to move toward the matching barrel body, and at the same time, the pressure sensors on each positioning column detect the pressure value. If the pressure sensor on the positioning column arranged in the middle of the pressure plate detects that the pressure value rises, it is judged that the current positioning column and the side wall of the matching barrel body are matched. The device notifies the staff to tighten the locking wrench and jumps to S4 for sealing detection. Otherwise, the positioning cylinder continues to move;

[0044] S4, the staff places the barrel to be inspected in the placement area of ​​the transmission belt, the transmission belt drives the barrel to be inspected to move, and the infrared sensor detects the current placement area. If the infrared sensor does not detect the existence of the barrel to be inspected, it is determined that there is no barrel in the current placement area, and the transmission belt continues to move to the next placement area. On the contrary, if the infrared sensor detects the existence of a processed barrel, it jumps to S5 to continue detection;

[0045] S5, the positioning cylinder drives the positioning plates on both sides of the barrel to be detected to move toward the barrel to be detected, and at the same time, the pressure detection device on the positioning column detects the pressure change of the positioning column. If the pressure detection device detects the pressure change, it is determined that the positioning columns at both ends of the barrel to be detected are in contact with the barrel to be detected, and the process jumps to S6 for pressure detection. Otherwise, the positioning cylinder continues to drive the positioning plate to move;

[0046] S6, the sliding member drives the air cylinder to move downward, and the air cylinder matches the through hole on the top of the barrel to be tested, forming a seal inside the barrel to be tested;

[0047] S7, the air blower is used to ventilate and pressurize the barrel to be tested, and the ventilation time is T;

[0048] S8, set the detection pressure to P. After the T time period, the air pressure detection device detects the pressure value P1 in the current barrel to be detected. If P1 < P, it is determined that the pressure in the current barrel to be detected is insufficient, and the blow tube continues to ventilate. On the contrary, if P1 ≥ P, it is determined that the pressure value in the current barrel to be detected is sufficient, and jump to S9 to continue the pressure maintenance test;

[0049] S9, the air blower stops blowing and keeps the barrel to be tested sealed for T1;

[0050] S10. After the T1 time period, the air pressure detection device detects the pressure value P2 in the current barrel to be detected. If P1-P2≥1.2, it is judged that the sealing performance of the current barrel to be detected is poor and unqualified. Conversely, if P1-P2<1.2, it is judged that the sealing performance of the current barrel to be detected is qualified.

[0051] In order to improve the positioning accuracy of the sealing detection device 5 on the barrel body 9 to be detected during the detection process, it is necessary to make the opening on the top of the barrel body 9 to be detected match the position of the air cylinder 82 when the positioning mechanism 7 positions the barrel body 9 to be processed, and maintain the stability of the barrel body 9 to be detected during the process of inserting the air cylinder 82 to detect the air tightness of the barrel body 9. Before the detection, the shape of the positioning column 73 on the positioning plate 72 is adjusted to adapt to the barrel body 9 to be detected of different shapes. Specifically, the locking wrench 74 on the positioning plate 72 is loosened to allow the positioning column 73 to slide on the positioning plate 72. At the same time, before the shape of the positioning column 73 is adjusted, the barrel body 9 to be detected is fixed by the air cylinder 82 to prevent the positioning column 73 from conflicting with the barrel body 9 to be detected after the positioning cylinder 71 pushes the positioning plate 72, thereby causing the barrel body 9 to move. In addition, a pressure sensor is provided on the positioning column 73. When the pressure sensor detects that the pressure value of the positioning column 73 located in the middle of the pressure plate increases, it is determined that the positioning column 73 in the middle of the pressure plate cannot continue to shrink, and the shape of the positioning mechanism 7 matches the shape of the current barrel body 9 to be processed. At this time, the locking wrench 74 is tightened to fix the position of the positioning column 73 on the positioning plate 72. When the positioning cylinder 71 pushes the positioning plate 72 to move toward the barrel body 9 to be detected, if the position of the barrel body 9 to be detected is offset and does not match the sealing detection device 5, the positioning column 73 conflicts with the side wall of the barrel body 9 to be detected, so that the barrel body 9 to be detected moves to the corresponding position, thereby realizing automatic positioning of the barrel body 9 to be detected. The degree of automation is high, the use effect is good, the positioning before detection and the fixation of the barrel body 9 to be detected during the detection process can be automatically realized, and the processing effect is good.

[0052] Furthermore, in order to accurately detect the sealing of the barrel body 9 to be inspected, an infrared sensor is provided at the bottom of the bracket 6, which can control the air blower 82 to detect the barrel body 9 when detecting the passage of the barrel body 9, thereby improving the detection efficiency. The air blower 82 is provided with an air pressure detection device. When the inside of the barrel body 9 to be inspected is inflated for detection, the air pressure detection device will detect an increase in the pressure value. At the same time, the threshold value of the air pressure in the barrel body 9 is set to P. When the air pressure in the barrel body 9 is filled to P, the next step is jumped to perform pressure maintenance detection. If the P value is not reached, the inflation is continued. Similarly, as an optimization of the solution, the maximum inflation time can be selectively added to the inflation detection. Generally speaking, if the sealing performance of the barrel body 9 is good, it will inevitably reach the P pressure value after a period of inflation. If the current barrel body 9 does not reach the P pressure value after long-term use, it is judged that the current barrel body 9 is leaking while inflating. Furthermore, in the process of pressure-maintaining detection of the barrel body 9, if the sealing performance of the barrel body 9 is good, the pressure value measured by the air pressure detection device decreases by a small amount during the pressure-maintaining time. When the pressure value decreases by less than the set value, it is judged that the current barrel body 9 to be detected is qualified. At the same time, in order to reduce the influence of external factors on the air tightness of the device, a rubber film 83 is provided on the side wall of the air blow tube 82. When the air blow tube 82 is inserted into the through hole 91 of the barrel body 9 to be detected, the rubber film 83 on the side wall of the through hole 91 forms a seal with the through hole 91 of the barrel body 9 to be detected, with good sealing performance, effectively preventing gas from leaking from the through hole 91, thereby improving the accuracy of the air tightness detection process and achieving good detection effect.

[0053] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Common changes and substitutions made by those skilled in the art within the scope of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision barrel sealing detection device, comprising a frame (1), characterized in that: The frame (1) is provided with a transmission belt (2), and a plurality of blocking blocks (3) are evenly arranged on the transmission belt (2) along its length direction, and a placement area (4) is formed between each of the blocking blocks (3). A sealing detection device (5) is also provided on the top of the transmission belt (2), and the sealing detection device (5) comprises a bracket (6), a positioning mechanism (7) arranged on both sides of the bracket (6), and a pressurizing mechanism (8) arranged on the top of the bracket (6), and the pressurizing mechanism (8) is used to pressurize the inside of the barrel body (9) to detect the sealing performance of the processed barrel body (9).

2. A high-precision barrel sealing detection device according to claim 1, characterized in that: The size of the placement area (4) matches the size of the bottom surface of the processing barrel body (9), and a through hole (91) communicating with the outside is provided on the top of the processing barrel body (9).

3. The high-precision barrel sealing detection device according to claim 1 is characterized in that: The positioning mechanism (7) comprises a positioning cylinder (71) arranged on the frame (1) and a positioning plate (72) arranged on the positioning cylinder (71); a plurality of positioning columns (73) are arranged on the positioning plate (72); the positioning columns (73) are configured to be retracted on the positioning plate (72) and to make the shape of the positioning columns (73) match the outer walls of both sides of the barrel body (9); the positioning plate (72) is also provided with a locking wrench (74); the locking wrench (74) is used to fix the positioning columns (73) to ensure that the distance that the positioning columns (73) extend from the positioning plate (72) remains unchanged.

4. The high-precision barrel sealing detection device according to claim 1 is characterized in that: The pressurizing mechanism (8) comprises a sliding member (81) arranged on the bracket (6) and a blow cylinder (82) arranged on the sliding member (81); the diameter of the blow cylinder (82) matches the diameter of the through hole (91) of the processing barrel body (9).

5. The high-precision barrel sealing detection device according to claim 4 is characterized in that: The side wall of the air cylinder (82) is provided with a rubber film (83), the air cylinder (82) is provided with an air outlet (84), one end of the air cylinder (82) is connected to a fan, and the air cylinder (82) is used to be inserted into the barrel body (9) and ventilate the inside of the barrel body (9).

6. A detection method applicable to a high-precision barrel sealing detection device as described in claims 1-5, characterized in that: An air pressure detection device is also provided at the bottom of the blow tube, one end of which is electrically connected to the control center, and a pressure sensor is also provided at one end of each positioning column arranged in the pressure plate, and the pressure sensor is used to detect the contact state of each positioning column with the surface of the barrel body, and the air pressure detection device is used to detect the air pressure change inside the barrel body and upload it to the control center for information processing. An infrared sensor is also provided at the bottom of the bracket, and the infrared sensor is used to detect whether there is a barrel body in the placement area. The control method includes the following steps: S1. Before processing, the staff loosens the locking wrench on the positioning plate, and puts the matching barrel body used for matching the positioning column into the placement area, so that the position of the matching barrel body matches the position of the positioning plate, and the position of the through hole on the top of the matching barrel body matches the position of the blow tube; S2, the sliding member drives the blowing cylinder to move downward and extend into the interior of the matching barrel, so that the matching barrel is fixed in the placement area; S3, the positioning cylinder drives the positioning plate to move toward the matching barrel body, and at the same time, the pressure sensors on each positioning column detect the pressure value. If the pressure sensor on the positioning column arranged in the middle of the pressure plate detects that the pressure value rises, it is judged that the current positioning column and the side wall of the matching barrel body are matched. The device notifies the staff to tighten the locking wrench and jumps to S4 for sealing detection. Otherwise, the positioning cylinder continues to move; S4, the staff places the barrel to be detected in the placement area of ​​the transmission belt, the transmission belt drives the barrel to be detected to move, and the infrared sensor detects the current placement area. If the infrared sensor does not detect the existence of the barrel to be detected, it is determined that there is no barrel in the current placement area, and the transmission belt continues to move to the next placement area. On the contrary, if the infrared sensor detects the existence of the barrel to be detected, it jumps to S5 to continue detection; S5, the positioning cylinder drives the positioning plates on both sides of the barrel to be detected to move toward the barrel to be detected, and at the same time, the pressure detection device on the positioning column detects the pressure change of the positioning column. If the pressure detection device detects the pressure change, it is determined that the positioning columns at both ends of the barrel to be detected are in contact with the barrel to be detected, and the process jumps to S6 for pressure detection. Otherwise, the positioning cylinder continues to drive the positioning plate to move; S6, the sliding member drives the air cylinder to move downward, and the air cylinder matches the through hole on the top of the barrel to be tested, forming a seal inside the barrel to be tested; S7, the air blower is used to ventilate and pressurize the barrel to be tested, and the ventilation time is T; S8, set the detection pressure to P. After the T time period, the air pressure detection device detects the pressure value P1 in the current barrel to be detected. If P1 < P, it is determined that the pressure in the current barrel to be detected is insufficient, and the blow tube continues to ventilate. On the contrary, if P1 ≥ P, it is determined that the pressure value in the current barrel to be detected is sufficient, and jump to S9 to continue the pressure maintenance test; S9, the air blower stops blowing and keeps the barrel to be tested sealed for T1; S10. After the T1 time period, the air pressure detection device detects the pressure value P2 in the current barrel to be detected. If P1-P2≥1.2, it is judged that the sealing performance of the current barrel to be detected is poor and unqualified. Conversely, if P1-P2<1.2, it is judged that the sealing performance of the current barrel to be detected is qualified.

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