Casing damage detection equipment

Abstract

The invention belongs to the field of sausage casing production, and particularly relates to sausage casing damage detection equipment which comprises a detection box, the top of the detection box is open, a rotatable optical probe is mounted on the outer side of the detection box, two extrusion pieces capable of controlling closing and opening are arranged on the inner side of the detection box, the two extrusion pieces are arranged in parallel, and the two extrusion pieces are arranged in parallel. Wherein a first lead screw nut mechanism is arranged above one extrusion piece, the movable end of the first lead screw nut mechanism is fixedly connected with the other extrusion piece, a filling pipe capable of being filled with air pressure is arranged on the inner side of the detection box, a blade capable of being lifted and moved is arranged below the two extrusion pieces, and the casing is filled with air pressure through the filling pipe. In the filling process, the squeezing piece far away from the filling pipe needs to be closed, and through the arrangement, the semi-mechanical assisted casing detection process is achieved, manual operation steps are reduced, the detection accuracy is improved, and meanwhile the detection process is facilitated.

Description

Technical Field

[0001] The invention belongs to the field of casing production, in particular to a casing damage detection device. Background Art

[0002] Intestine casings are livestock products made by scraping the large and small intestines of livestock. They are mainly used as the outer casings for stuffing sausages and sausages. According to the type of animal, casings are divided into pig casings, sheep casings and cattle casings. The intestines are divided into four layers from the inside to the outside: mucosa, submucosa, muscular layer and serosa. The treatment of these four layers varies depending on the type of animal and the different requirements of the finished product.

[0003] A patent application with publication number CN116106486A discloses a casing damage detection device and method, comprising: a feed hopper, a rotating feed barrel is installed below the feed hopper. A first limit roller and a second limit roller are used for transportation, and the casing is automatically transported to the inside of the detection box. The outer surface of the casing to be inspected is detected by a flaw detection sensor, so as to detect damage from the outside and automatically detect the damage.

[0004] In the traditional casing inspection process, since the casing is soft and long, the inspection process is generally performed manually throughout the process, resulting in a slow inspection speed. In addition, the traditional inspection method is to inject water into the casing and observe whether there are any leaks on the surface after injection. Such observation is prone to omissions, resulting in the damaged area not being detected.

[0005] To this end, the present invention provides a casing damage detection device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve the technical problem is as follows: a casing damage detection device described in the present invention comprises a detection box, the top of the detection box is open, a rotatable optical probe is installed on the outside of the detection box, two extrusion plates that can be controlled to be closed and opened are arranged on the inside of the detection box, the two extrusion plates are arranged in parallel, a lead screw nut mechanism 1 is arranged above one of the extrusion plates, the moving end of the lead screw nut mechanism 1 is fixedly connected to the other extrusion plate, a filling tube that can be filled with air pressure is arranged on the inside of the detection box, and blades that can be raised and lowered and moved are arranged below the two extrusion plates; Through the setting of the detection box and the extrusion sheet, first inject a certain amount of water into the detection box to put the casing in the liquid, pass the casing through the middle of the two extrusion sheets, put one end of the casing on the extrusion sheet, and fill the casing with air pressure through the filling tube. During the filling process, the extrusion sheet away from the filling tube needs to be closed, so that the filling air pressure will expand the casing to form a raised cylindrical shape. At this time, the casing is below the liquid, and observe whether bubbles appear above the liquid surface. If so, it means that there are holes on the surface of the casing. If not, continue to test, and continue the testing steps: close the two extrusion sheets and then open them slightly, and at the same time pull the casing at one end close to the filling tube. As the casing is pulled, due to the extrusion of the two extrusion sheets, the air pressure filled inside the casing will be between the two extrusion sheets, and as the casing is pulled, the air pressure is transferred to the subsequent casing, and Observe again whether there are bubbles on the liquid surface. The combined force of the extrusion plates prevents the internal air pressure from escaping from the ends of the two extrusion plates, while allowing the casing to be barely pulled. Through this setting, compared with using liquid filling, observing the liquid seepage method in the air can more accurately judge the damage of the casing; when bubbles are found, move the blade to the position where the bubbles are generated, and let the blade push up to split the casing in two. After the bubbles are generated, they will rise vertically. The positioning process is relatively simple, and the cutting position does not need to be too accurate, because the two ends of the casing will be knotted during the subsequent use of the casing. It is only necessary to ensure that there is no damage in the middle part of the casing. Through this setting, semi-mechanical assisted casing detection process is realized, reducing manual operation steps, which not only improves the detection accuracy, but also facilitates the detection process.

[0008] Preferably, a partition is fixedly connected to the middle part of the bottom of the detection box, and a plurality of blocking columns are provided at one end of the partition away from the filling tube. Two restraining frames are installed between the partition and the inner wall of the detection box, and the casings pass through the middle part of the restraining frames. The setting of the partition divides the space of the detection box, one side is used for detecting the casings, and the other side is used for stacking the casings. Since the casings are long, the length of traditional pig intestines can reach tens of meters. In order not to affect the detection process, the subsequent casings are placed on the other side of the partition, and the casings are passed through the blocking columns at the same time. In this way, the casings will pass through the blocking columns with smooth surfaces during the pulling process. Since the casings are soaked in liquid, the friction between them is low, so the casings can pass through the blocking columns alone without causing the problem of mutual entanglement.

[0009] Preferably, two gears 1 are arranged between the two restraining frames, the two gears 1 are meshed with each other, two symmetrically arranged blocking plates are arranged on the outer side of the gear 1, both ends of the gear 1 are rotatably engaged with the blocking plates, a driving motor is fixedly connected to the outer side of the blocking plate, the output end of the driving motor is fixedly connected to one of the gears 1, the outer side of the blocking plate is fixedly connected to the partition, and the outer side of the driving motor is fixedly connected to the detection box, and one of the gears 1 is driven by the driving motor to rotate, so that the two gears 1 pull the casing into the detection area on the other side of the partition at a uniform speed, so that the casing can be pulled between the blocking plate and the extrusion plate, so that the casing can be pulled more easily during subsequent pulling.

[0010] Preferably, a bonding plate is installed on the inner wall of the detection box, a through groove is opened on one side of the bonding plate, the filling tube is located above the through groove, an air pump connected to the filling tube is fixedly connected to the middle of the bonding plate, and a recovery component is provided on the outer side of the bonding plate, the recovery component is used to recover the casings after the detection, when one end of the casing is filled with air pressure, the other end of the casing is placed in the through groove, when a section of casing is detected, the detected casing is pulled into the bonding plate by the recovery component, so that there is no need for manual continuous pulling of the casing, so that the equipment can perform detection by itself, and an optical probe is used to observe the liquid level between the two extrusion sheets when bubbles appear, and the blade is controlled to move to the bottom where the bubbles appear, so that the blade rises to cut off the casing, and then the cut end of the casing needs to be continuously filled with gas and put back into the recovery component for further detection, which greatly reduces the manual operation process.

[0011] Preferably, the recycling component includes an absorption cover, which is mounted on the outside of the detection box, the absorption cover and the bonding plate are fixedly connected, and two mutually meshing gears 2 are installed in the absorption cover, the gears 2 are vertically arranged, and a servo motor for driving the gear 2 to rotate is installed on the top of one of the gears 2, a conveying pipe is fixedly connected to the end of the absorption cover away from the bonding plate, one end of the conveying pipe is connected to the interior of the detection box, a filter screen is provided in the middle of the conveying pipe, and a liquid pump is installed at the connection between the conveying pipe and the detection box, and the two gears 2 in the absorption cover will rotate under the drive of the servo motor. It only needs to press one end of the casing between the two gears 2, and the gear 2 can continuously pull the detected casing into the absorption cover, and at the same time, the absorption cover is connected to the detection box through the conveying pipe, and it only needs to start the liquid pump to slowly absorb the liquid in the detection box and then transport it back to the detection box to form a circulating flow, so that the casing will flow into the conveying pipe and be blocked by the filter screen. After the casing is cut, the filter box is opened to take out the detected casing.

[0012] Preferably, two symmetrically arranged closing plates are slidably connected in the through groove, and an electric telescopic rod three for driving the closing plates to slide is installed at the rear end of the closing plates, and a plurality of irregular protrusions are provided on opposite sides of the two closing plates. An electromagnetic valve is installed between the delivery pipe and the absorption cover, and the other output end of the air pump is connected to the through groove. When the casing is cut, the power of the liquid pump is increased, so that the liquid flow rate is increased, and the two extrusion plates are opened at the same time, and the two gears are rotated to allow the broken casing to enter the through groove along with the liquid, and then the two closing plates are closed to clamp the ends of the casing. At this time, the through groove is closed, and as the liquid pump continues to pump water, the liquid in the absorption cover decreases, and then the electromagnetic valve is closed, and air pressure is injected into the through groove through the air pump. Since there are a plurality of irregular protrusions on the casing port squeezed by the closing plate, although the casing is clamped, a gap is left, and the air pressure in the through groove will gradually rush into the casing, causing the casing to expand, and through the optical The probe observes the expansion situation. At this time, the extrusion piece far away from the closing plate is in a closed state. Due to the gap between the closing plates, the excess air pressure will also be input into the detection box, so the air pressure in the casing is constantly too high. After filling for a period of time, the extrusion piece close to the bonding plate is closed, and the two ends of the casing can be grasped to carry out the detection process. A hydraulic rod is installed on the servo motor of gear two. The hydraulic rod drives the servo motor and the two gears two to approach the closing plate. Gear two is an elastic material and can be close to the surface of the closing plate. In this way, the part of the casing leaking in the closing plate can be grasped. When the closing plate is opened, gear two can continue to pull the casing. In this process, it is easy to lose some of the air pressure in the casing. The two extrusion pieces are driven close to each other through the screw nut mechanism one to ensure that the air pressure is sufficiently expanded in the casing, so that the air pressure can be timely gushed out when it encounters a damaged part, thereby providing detection accuracy. Through this setting, the effect of fully automatic detection of damaged parts of the casing is achieved, which greatly reduces labor costs.

[0013] Preferably, a filter box is provided in the middle of the conveying pipe, the filter screen is provided in the filter box, and a discharge door is rotatably connected to the bottom of the filter box. The detected casings are blocked by the filter screen and remain in the filter box. When the casings are cut and divided, the casings will accumulate on the filter screen. When the discharge door is opened, the liquid will carry the casings out, thereby achieving the effect of continuously recycling the detected casings.

[0014] Preferably, the extrusion sheet is composed of two metal sheets, both ends of the two metal sheets are fixedly connected to each other, one end of the extrusion sheet is fixedly connected to an electric telescopic rod for driving the extrusion sheet to move, the two electric telescopic rods close to the bonding plate are fixedly connected to the detection box and the partition, and the two electric telescopic rods away from the bonding plate are slidingly engaged with the detection box and the partition respectively. The structure of the extrusion sheet can be closed toward the center when the two electric telescopic rods are shortened, so as to catch the casing, and the extrusion sheet away from the absorption cover can be close to the absorption cover under the drive of the screw nut mechanism, so as to compress the gas inside the casing during the detection process, so that the air pressure can pass through relatively small holes, thereby improving the detection efficiency.

[0015] Preferably, a friction pad is attached to the inner wall of the extrusion sheet. The friction pad is made of elastic material and has an outer surface with a smooth transition. The friction pad can protect the extruded casing and reduce damage to the casing when it is extruded.

[0016] Preferably, a jet pipe is fixedly connected to the bottom surface of the detection box, and a plurality of spray holes are provided on the top of the jet pipe. The jet pipe and the delivery pipe, as well as two sides of the blade, are fixedly connected with two electric telescopic rods for driving the blade to rise and fall. A card slot is provided at the bottom of the detection box, and the bottoms of the two electric telescopic rods are slidably engaged in the card slot. A screw nut mechanism two is provided in the card slot for driving the two electric telescopic rods to move. The liquid that flows back into the detection box from the delivery pipe will be sprayed out by the spray holes on the top of the jet pipe, which can effectively act on the casings accumulated in the water, disperse the casings, and reduce the problem of mutual knotting caused by pulling. The screw nut mechanism two is controlled by the optical probe to adjust the blade to move to the position where bubbles are generated, and the casings are cut off by extending the two electric telescopic rods.

[0017] The beneficial effects of the present invention are as follows: 1. The casing damage detection device described in the present invention, through the arrangement of the detection box and the extrusion sheet, first injects a certain amount of water into the detection box, so that the casing is in the liquid, passes the casing through the middle of the two extrusion sheets, puts one end of the casing on the extrusion sheet, and fills the casing with air pressure through the filling tube. During the filling process, the extrusion sheet away from the filling tube needs to be closed, so that the filling air pressure will expand the casing to form a raised cylindrical shape. At this time, the casing is below the liquid, and observe whether bubbles appear above the liquid surface. If bubbles appear, it means that there are holes on the surface of the casing. If not, continue to detect, and continue the detection steps: close the two extrusion sheets and then open them slightly, and at the same time pull the casing at one end close to the filling tube. As the casing is pulled, due to the extrusion of the two extrusion sheets, the air pressure filled in the casing will be between the two extrusion sheets, and as the casing is pulled, the air pressure will turn Move to the subsequent casing and observe whether there are bubbles on the liquid surface again. The combined force of the extrusion sheets prevents the internal air pressure from escaping from the ends of the two extrusion sheets, while allowing the casing to be barely pulled. Through this setting, compared with using liquid filling, observing the liquid seepage method in the air can more accurately judge the damage of the casing; when bubbles are found, move the blade to the position where the bubbles are generated, and let the blade push up to split the casing in two. After the bubbles are generated, they will rise vertically, and the positioning process is relatively simple. At the same time, the cutting position does not need to be too accurate, because during the subsequent use of the casing, the two ends of the casing will be knotted and other operations will be performed. It is only necessary to ensure that there is no damage in the middle part of the casing. Through this setting, the semi-mechanical assisted casing detection process is realized, and the manual operation steps are reduced, which not only improves the detection accuracy, but also facilitates the detection process.

[0018] 2. The casing damage detection device described in the present invention has a partition that divides the space of the detection box. One side is used to detect casings, and the other side is used to stack casings. Since the casings are long, the length of traditional pig intestines can reach tens of meters. In order not to affect the detection process, the subsequent casings are placed on the other side of the partition. At the same time, the casings are passed through the blocking column. In this way, the casings will pass through the blocking column with a smooth surface during the pulling process. Since the casings are soaked in liquid, the friction between them is low. In this way, the casings can pass through the blocking column alone without the problem of mutual entanglement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 is a cross-sectional view of the detection box of the present invention; Figure 3 is a three-dimensional diagram of the restraining frame and the blocking plate of the present invention; Figure 4 is a stereogram of an extruded sheet of the present invention; Figure 5 is a three-dimensional diagram of the laminating plate and the conveying pipe of the present invention; Figure 6 is a stereoscopic diagram of the jet pipe of the present invention; In the figure: 1. detection box; 2. blocking column; 3. optical probe; 4. absorption cover; 5. filter box; 6. discharge door; 7. conveying pipe; 8. blocking plate; 9. restraining frame; 10. screw nut mechanism 1; 12. driving motor; 13. gear 1; 14. extrusion plate; 16. blade; 17. electric telescopic rod 1; 18. electric telescopic rod 2; 19. friction pad; 20. solenoid valve; 21. gear 2; 22. air pump; 23. bonding plate; 24. filling tube; 25. closing plate; 26. through groove; 27. jet pipe; 28. partition. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figures 1 to 3 As shown, a casing damage detection device according to an embodiment of the present invention comprises a detection box 1, the top of the detection box 1 is open, a rotatable optical probe 3 is installed on the outside of the detection box 1, two extrusion sheets 14 that can be controlled to be closed and opened are arranged on the inside of the detection box 1, the two extrusion sheets 14 are arranged in parallel, a screw nut mechanism 10 is arranged above one of the extrusion sheets 14, the moving end of the screw nut mechanism 10 is fixedly connected to the other extrusion sheet 14, a filling pipe 24 that can be filled with air pressure is arranged on the inside of the detection box 1, and blades 16 that can be raised and lowered and moved are arranged below the two extrusion sheets 14; During the work, in the traditional casing inspection process, since the casing is soft and long, the inspection process is generally operated manually throughout the whole process, resulting in a slow inspection speed. In addition, the traditional inspection method is to inject water into the casing and observe whether there are any leaks on the surface after the water is injected. This kind of observation is prone to omissions, resulting in the damaged parts not being detected; Through the setting of the detection box 1 and the extrusion sheet 14, a certain amount of water is first injected into the detection box 1 to make the casing in the liquid, and the casing is passed through the middle of the two extrusion sheets 14, and one end of the casing is put on the extrusion sheet 14, and the air pressure is filled into the casing through the filling tube 24. During the filling process, the extrusion sheet 14 away from the filling tube 24 needs to be closed, so that the filling air pressure will expand the casing to form a raised cylindrical shape. At this time, the casing is below the liquid, and it is observed whether bubbles appear above the liquid surface. If so, it means that there are holes on the surface of the casing. If not, continue to test, and continue the testing steps: close the two extrusion sheets 14 and then open them slightly, and at the same time pull the casing at one end close to the filling tube 24. As the casing is pulled, due to the extrusion of the two extrusion sheets 14, the air pressure filled inside the casing will be between the two extrusion sheets 14, and as the casing is pulled, the air pressure is transferred to the rear The casing is then filled with the extrusion sheets 14, and the liquid surface is observed again to see if there are bubbles. The combined force of the extrusion sheets 14 prevents the internal air pressure from escaping from the ends of the two extrusion sheets 14, while allowing the casing to be barely pulled. By this arrangement, compared with using liquid filling, observing the liquid seepage method in the air can more accurately judge the damage of the casing; when bubbles are found, the blade 16 is moved to the position where the bubbles are generated, and the blade 16 is pushed up to divide the casing in two. After the bubbles are generated, they will rise vertically, and the positioning process is relatively simple. At the same time, the cutting position does not need to be too accurate, because the two ends of the casing will be knotted during the subsequent use of the casing. It is only necessary to ensure that there is no damage in the middle part of the casing. By this arrangement, the semi-mechanically assisted casing detection process is realized, and the manual operation steps are reduced, which not only improves the detection accuracy, but also facilitates the detection process.

[0023] like Figures 1 to 6 As shown, a partition 28 is fixedly connected to the middle of the bottom of the detection box 1, and a plurality of blocking columns 2 are arranged at one end of the partition 28 away from the filling tube 24. Two restraining frames 9 are installed between the partition 28 and the inner wall of the detection box 1, and the casing passes through the middle of the restraining frame 9; During operation, the partition 28 is set to divide the space of the detection box 1, one side is used to detect the casings, and the other side is used to stack the casings. Since the casings are long, the length of traditional pig intestines can reach tens of meters. In order not to affect the detection process, the subsequent casings are placed on the other side of the partition 28, and the casings are allowed to pass through the blocking column 2 at the same time. In this way, the casings will pass through the blocking column 2 with a smooth surface during the pulling process. Since the casings are soaked in liquid, the friction between them is low, so the casings can pass through the blocking column 2 alone without causing the problem of mutual entanglement.

[0024] like Figures 1 to 6As shown, two gears 13 are arranged between the two restraining frames 9, the two gears 13 are meshed with each other, two symmetrically arranged blocking plates 8 are arranged on the outside of the gear 13, both ends of the gear 13 are rotatably engaged with the blocking plates 8, a driving motor 12 is fixedly connected to the outside of the blocking plates 8, the output end of the driving motor 12 is fixedly connected to one of the gears 13, the outside of the blocking plates 8 is fixedly connected to the partition 28, and the outside of the driving motor 12 is fixedly connected to the detection box 1; During operation, the driving motor 12 drives one of the gears 13 to rotate, and then the two gears 13 pull the casing to the detection area on the other side of the partition 28 at a uniform speed, so that the casing can be pulled between the blocking plate 8 and the extrusion plate 14, so that the casing can be pulled more easily during subsequent pulling.

[0025] like Figures 1 to 6 As shown, a bonding plate 23 is installed on the inner wall of the test box 1, a through slot 26 is opened through one side of the bonding plate 23, the filling tube 24 is located above the through slot 26, an air pump 22 connected to the filling tube 24 is fixedly connected to the middle of the bonding plate 23, and a recovery component is arranged on the outer side of the bonding plate 23, and the recovery component is used to recover the casing after the test; During operation, after one end of the casing is filled with air pressure, the other end of the casing is placed in the through groove 26. After a section of casing is inspected, the inspected casing is pulled into the laminating plate 23 through the recovery component. In this way, there is no need to pull the casing continuously manually, so that the equipment can perform the inspection by itself. At the same time, the optical probe 3 is used to observe the liquid level between the two extrusion sheets 14. When bubbles appear, the blade 16 is controlled to move to the bottom of the bubble, so that the blade 16 rises to cut off the casing. After that, the cut end of the casing needs to be filled with gas again and put back into the recovery component for further inspection, which greatly reduces the manual operation process.

[0026] like Figures 1 to 6 As shown, the recycling assembly includes an absorption cover 4, which is installed on the outside of the detection box 1, and the absorption cover 4 is fixedly connected to the bonding plate 23. Two mutually meshing gears 21 are installed in the absorption cover 4, and the gears 21 are vertically arranged. A servo motor for driving the gear 21 to rotate is installed on the top of one of the gears 21. A conveying pipe 7 is fixedly connected to one end of the absorption cover 4 away from the bonding plate 23, and one end of the conveying pipe 7 is connected to the inside of the detection box 1. A filter screen is arranged in the middle of the conveying pipe 7, and a liquid pump is installed at the connection between the conveying pipe 7 and the detection box 1; During operation, the two gears 21 in the absorption cover 4 will rotate driven by the servo motor. It is only necessary to press one end of the casing between the two gears 21, and the gear 21 can continuously pull the tested casing into the absorption cover 4. At the same time, the absorption cover 4 is connected with the detection box 1 through the conveying pipe 7. It is only necessary to start the liquid pump to slowly absorb the liquid in the detection box 1 and then convey it back to the detection box 1 to form a circulating flow. In this way, the casing will flow into the conveying pipe 7 and be blocked by the filter. After the casing is cut, the filter box 5 is opened to take out the tested casing.

[0027] like Figures 1 to 6 As shown, two symmetrically arranged closing plates 25 are slidably connected in the through groove 26, and an electric telescopic rod 3 for driving the closing plate 25 to slide is installed at the rear end of the closing plate 25, and a plurality of irregular protrusions are arranged on the opposite side of the two closing plates 25, and a solenoid valve 20 is installed between the delivery pipe 7 and the absorption cover 4, and the other output end of the air pump 22 is connected to the through groove 26; During operation, after the casing is cut, the power of the liquid pump is increased to increase the liquid flow rate. At the same time, the two extrusion plates 14 are opened, and the two gears 13 are rotated to allow the broken casing to flow into the through groove 26 along with the liquid. Then the two closing plates 25 are closed to clamp the ends of the casing. At this time, the through groove 26 is closed. As the liquid pump continues to pump water, the liquid in the absorption cover 4 decreases. Then the solenoid valve 20 is closed and air pressure is injected into the through groove 26 through the air pump 22. Since there are multiple irregular protrusions at the casing port squeezed by the closing plate 25, although the casing is clamped, there is a gap. The air pressure in the through groove 26 will gradually rush into the casing to expand the casing. The expansion is observed by the optical probe 3. At this time, the extrusion plate 14 away from the closing plate 25 is in a closed state. Since there is a gap between the closing plates 25, the excess air pressure will also be input into the detection box. 1, so there is a constant situation of excessive air pressure in the casing. After filling for a period of time, the extrusion sheet 14 close to the fitting plate 23 is closed, so that the two ends of the casing can be grasped and the detection process is carried out. A hydraulic rod is installed on the servo motor of the gear 21, and the hydraulic rod drives the servo motor and the two gears 21 to approach the closing plate 25. The gear 21 is made of elastic material and can be close to the surface of the closing plate 25. In this way, the part of the casing leaking on the closing plate 25 can be grasped. When the closing plate 25 is opened, the gear 21 can continue to pull the casing. In this process, it is easy to lose part of the air pressure in the casing. The two extrusion sheets 14 are driven close to each other through the screw nut mechanism 10 to ensure that the air pressure is sufficiently expanded in the casing, so that the air pressure can be timely gushed out when it encounters a damaged part, thereby providing detection accuracy. Through this setting, the effect of fully automatic detection of damaged parts of the casing is achieved, which greatly reduces labor costs.

[0028] like Figures 1 to 6As shown, a filter box 5 is provided in the middle of the conveying pipe 7, the filter screen is provided in the filter box 5, and a discharge door 6 is rotatably connected to the bottom of the filter box 5; During operation, the inspected casings are blocked by the filter and remain in the filter box 5. After the casings are cut and divided, they will accumulate on the filter. When the discharge door 6 is opened, the liquid will carry the casings out, thereby achieving the effect of continuously recycling the inspected casings.

[0029] like Figures 1 to 6 As shown, the extrusion sheet 14 is composed of two metal sheets, the two ends of the two metal sheets are fixedly connected to each other, one end of the extrusion sheet 14 is fixedly connected to an electric telescopic rod 17 for driving the extrusion sheet 14 to move, the two electric telescopic rods 17 close to the laminating plate 23 are fixedly connected to the detection box 1 and the partition 28, and the two electric telescopic rods 17 away from the laminating plate 23 are respectively slidably engaged with the detection box 1 and the partition 28; During operation, the structure of the extrusion sheet 14 can close toward the center when the two electric telescopic rods 17 are shortened, thereby grabbing the casing. The extrusion sheet 14 away from the absorption cover 4 can be driven by the screw nut mechanism 10 to approach the absorption cover 4. During the detection process, this can be used to compress the internal gas of the casing, allowing the air pressure to pass through smaller holes, thereby improving the detection efficiency.

[0030] like Figures 1 to 6 As shown, a friction pad 19 is attached to the inner wall of the extrusion sheet 14. The friction pad 19 is made of elastic material, and the outer surface of the friction pad 19 is smoothly transitioned. When working, the setting of the friction pad 19 can protect the extruded casing and reduce the damage to the casing when it is extruded.

[0031] like Figures 1 to 6 As shown, a jet pipe 27 is fixedly connected to the bottom surface of the detection box 1, and a plurality of spray holes are provided on the top of the jet pipe 27. The jet pipe 27 and the delivery pipe 7, and both sides of the blade 16 are fixedly connected with an electric telescopic rod 18 for driving the blade 16 to move up and down. A card slot is provided at the bottom of the detection box 1, and the bottoms of the two electric telescopic rods 18 are slidably engaged in the card slot, and a screw nut mechanism 2 for driving the electric telescopic rod 18 to move is provided in the card slot; During operation, the liquid that flows back from the delivery pipe 7 to the detection box 1 will be sprayed out by the spray hole at the top of the jet pipe 27, which can effectively act on the casings accumulated in the water, allowing the casings to disperse and reduce the problem of mutual tangling caused by pulling; the screw nut mechanism 2 is controlled by the optical probe 3, and the blade 16 is adjusted to move to the position where the bubble is generated, and the casings are cut off by extending the electric telescopic rod 18.

[0032] During operation, through the setting of the detection box 1 and the extrusion sheet 14, a certain amount of water is first injected into the detection box 1 to allow the casing to be in the liquid, and the casing is passed through the middle of the two extrusion sheets 14, one end of the casing is put on the extrusion sheet 14, and the air pressure is filled into the casing through the filling tube 24. During the filling process, the extrusion sheet 14 away from the filling tube 24 needs to be closed, so that the filling air pressure will expand the casing to form a raised cylindrical shape. At this time, the casing is below the liquid, and observe whether bubbles appear above the liquid surface. If bubbles appear, it means that there are holes on the surface of the casing. If not, continue to detect, and continue the detection steps: close the two extrusion sheets 14 and then open them slightly, and at the same time pull the casing at one end close to the filling tube 24. As the casing is pulled, due to the extrusion of the two extrusion sheets 14, the air pressure filled inside the casing will be between the two extrusion sheets 14, and as the casing is pulled, the air pressure is transferred To the subsequent casing, and observe again whether there are bubbles on the liquid surface. The combined force of the extrusion sheets 14 prevents the internal air pressure from escaping from the ends of the two extrusion sheets 14, and at the same time allows the casing to be barely pulled. Through this setting, compared with using liquid filling, observing the liquid seepage method in the air can more accurately judge the damage of the casing; when bubbles are found, move the blade 16 to the position where the bubbles are generated, and at the same time let the blade 16 push up to split the casing here into two. After the bubbles are generated, they will rise vertically. The positioning process is relatively simple, and the cutting position does not need to be too accurate, because the two ends of the casing will be knotted during the subsequent use of the casing. It is only necessary to ensure that there is no damage in the middle part of the casing. Through this setting, the semi-mechanical assistance casing detection process is realized, and the manual operation steps are reduced, which not only improves the detection accuracy, but also facilitates the detection process. The partition 28 is set to divide the space of the detection box 1. One side is used for detecting casings, and the other side is used for stacking casings. Since the casings are long, the length of traditional pig intestines can reach tens of meters. In order not to affect the detection process, the subsequent casings are placed on the other side of the partition 28, and the casings are allowed to pass through the blocking column 2 at the same time. In this way, the casings will pass through the smooth surface of the blocking column 2 during the pulling process. Since the casings are soaked in liquid, the friction between them is low, so the casings can pass through the blocking column 2 alone without the problem of mutual entanglement. The driving motor 12 drives one of the gears 13 to rotate, so that the two gears 13 uniformly pull the casing to the detection area on the other side of the partition 28, so that the casing can be pulled between the blocking plate 8 and the extrusion plate 14, so that the casing can be pulled more easily in the subsequent pulling; When one end of the casing is filled with air pressure, the other end of the casing is placed in the through groove 26. When a section of casing is tested, the tested casing is pulled into the laminating plate 23 by the recovery component. In this way, there is no need to pull the casing manually, so that the device can perform the test by itself. At the same time, the optical probe 3 is used to observe the liquid level between the two extrusion sheets 14. When bubbles appear, the blade 16 is controlled to move to the bottom where the bubbles appear, so that the blade 16 rises to cut the casing. After that, the cut end of the casing needs to be filled with gas again and put back into the recovery component for further testing, which greatly reduces the manual operation process. The two gears 21 in the absorption cover 4 will rotate driven by the servo motor. Just press one end of the casing between the two gears 21, and the gear 21 can continuously pull the tested casing into the absorption cover 4. At the same time, the absorption cover 4 is connected with the detection box 1 through the conveying pipe 7. Just start the liquid pump to slowly absorb the liquid in the detection box 1 and then convey it back to the detection box 1 to form a circulation flow. In this way, the casing will flow into the conveying pipe 7 and be blocked by the filter. After the casing is cut, the filter box 5 is opened to take out the tested casing. After the casing is cut, the power of the liquid pump is increased so that the liquid flow rate increases, and the two extrusion plates 14 are opened at the same time, and the two gears 13 are rotated to allow the broken casing to enter the through groove 26 along with the liquid. Then the two closing plates 25 are closed to clamp the ends of the casing. At this time, the through groove 26 is closed. As the liquid pump continues to pump water, the liquid in the absorption cover 4 decreases, and then the solenoid valve 20 is closed, and air pressure is injected into the through groove 26 through the air pump 22. Since there are multiple irregular protrusions at the casing port squeezed by the closing plate 25, although the casing is clamped, there is a gap, and the air pressure in the through groove 26 will gradually rush into the casing, causing the casing to expand. The expansion is observed by the optical probe 3. At this time, the extrusion plate 14 away from the closing plate 25 is in a closed state. Since there is a gap between the closing plates 25, the excess air pressure will also be input into the detection box 1. , so there is a constant situation of excessive air pressure in the casing. After filling for a period of time, the extrusion sheet 14 close to the laminating plate 23 is closed, and the two ends of the casing can be caught and the detection process is carried out. A hydraulic rod is installed on the servo motor of the gear 21. The hydraulic rod drives the servo motor and the two gears 21 to approach the closing plate 25. The gear 21 is made of elastic material and can be close to the surface of the closing plate 25. In this way, the part of the casing leaking on the closing plate 25 can be caught. When the closing plate 25 is opened, the gear 21 can continue to pull the casing. In this process, it is easy to lose part of the air pressure in the casing. The two extrusion sheets 14 are driven close to each other through the screw nut mechanism 10 to ensure that the air pressure in the casing is sufficiently expanded, so that the air pressure can be timely gushed out when it encounters a damaged part, thereby providing detection accuracy. Through this setting, the effect of fully automatic detection of damaged parts of the casing is achieved, which greatly reduces labor costs; The inspected casings are blocked by the filter and remain in the filter box 5. When the casings are cut and divided, they will accumulate on the filter. When the discharge door 6 is opened, the liquid will carry the casings out, thereby achieving the effect of continuously recycling the inspected casings. The structure of the extrusion sheet 14 can be closed toward the center when the two electric telescopic rods 17 are shortened, so as to catch the casing. The extrusion sheet 14 far away from the absorption cover 4 can be driven by the screw nut mechanism 10 to approach the absorption cover 4. During the detection process, the internal gas of the casing can be compressed so that the air pressure can pass through relatively small holes, thereby improving the detection efficiency. The friction pad 19 can protect the squeezed casing and reduce the damage to the casing when it is squeezed; The liquid that flows back from the delivery pipe 7 to the detection box 1 will be sprayed out by the spray hole at the top of the jet pipe 27, which can effectively act on the casings accumulated in the water, disperse the casings, and reduce the problem of mutual knotting caused by pulling; the screw nut mechanism 2 is controlled by the optical probe 3, and the blade 16 is adjusted to move to the position where the bubble is generated, and the casings are cut off by extending the electric telescopic rod 18.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A casing damage detection device, characterized in that: The invention comprises a detection box (1), wherein the top of the detection box (1) is open, a rotatable optical probe (3) is mounted on the outside of the detection box (1), two extrusion sheets (14) which can be controlled to be closed and opened are arranged on the inside of the detection box (1), the two extrusion sheets (14) are arranged in parallel, a lead screw nut mechanism (10) is arranged above one of the extrusion sheets (14), the movable end of the lead screw nut mechanism (10) is fixedly connected to the other extrusion sheet (14), a filling pipe (24) which can be filled with air pressure is arranged on the inside of the detection box (1), and blades (16) which can be raised and lowered and moved are arranged below the two extrusion sheets (14).

2. The casing damage detection device according to claim 1, characterized in that: A partition (28) is fixedly connected to the middle of the bottom of the detection box (1); a plurality of blocking columns (2) are arranged at one end of the partition (28) away from the filling tube (24); two restraining frames (9) are installed between the partition (28) and the inner wall of the detection box (1); and the casing passes through the middle of the restraining frames (9).

3. The casing damage detection device according to claim 2, characterized in that: Two gears (13) are arranged between the two restraining frames (9), the two gears (13) mesh with each other, two symmetrically arranged blocking plates (8) are arranged on the outside of the gears (13), both ends of the gears (13) are rotatably engaged with the blocking plates (8), a driving motor (12) is fixedly connected to the outside of the blocking plates (8), the output end of the driving motor (12) is fixedly connected to one of the gears (13), the outside of the blocking plates (8) is fixedly connected to the partition (28), and the outside of the driving motor (12) is fixedly connected to the detection box (1).

4. The casing damage detection device according to claim 3, characterized in that: A laminating plate (23) is installed on the inner wall of the test box (1), a through groove (26) is provided through one side of the laminating plate (23), the filling tube (24) is located above the through groove (26), an air pump (22) connected to the filling tube (24) is fixedly connected to the middle of the laminating plate (23), and a recovery component is provided on the outer side of the laminating plate (23), the recovery component is used to recover the casing after the test is completed.

5. The casing damage detection device according to claim 4, characterized in that: The recycling assembly comprises an absorption cover (4), the absorption cover (4) being mounted on the outside of the detection box (1), the absorption cover (4) being fixedly connected to the bonding plate (23), two mutually meshing gears (21) being mounted in the absorption cover (4), the gears (21) being arranged vertically, a servo motor for driving the gears (21) to rotate being mounted on the top of one of the gears (21), a delivery pipe (7) being fixedly connected to one end of the absorption cover (4) away from the bonding plate (23), one end of the delivery pipe (7) being connected to the inside of the detection box (1), a filter screen being arranged in the middle of the delivery pipe (7), and a liquid pump being installed at the connection between the delivery pipe (7) and the detection box (1).

6. The casing damage detection device according to claim 5, characterized in that: Two symmetrically arranged closing plates (25) are slidably connected in the through groove (26); an electric telescopic rod (3) for driving the closing plates (25) to slide is installed at the rear end of the closing plates (25); a plurality of irregular protrusions are provided on opposite sides of the two closing plates (25); a solenoid valve (20) is installed between the delivery pipe (7) and the absorption cover (4); and the other output end of the air pump (22) is connected to the through groove (26).

7. The casing damage detection device according to claim 6, characterized in that: A filter box (5) is arranged in the middle of the conveying pipe (7), the filter screen is arranged in the filter box (5), and a discharge door (6) is rotatably connected to the bottom of the filter box (5).

8. The casing damage detection device according to claim 7, characterized in that: The extrusion sheet (14) is composed of two metal sheets, the two ends of the two metal sheets are fixedly connected to each other, one end of the extrusion sheet (14) is fixedly connected to an electric telescopic rod (17) for driving the extrusion sheet (14) to move, the two electric telescopic rods (17) close to the laminating plate (23) are fixedly connected to the detection box (1) and the partition (28), and the two electric telescopic rods (17) away from the laminating plate (23) are respectively slidably engaged with the detection box (1) and the partition (28).

9. The casing damage detection device according to claim 8, characterized in that: A friction pad (19) is attached to the inner wall of the extrusion sheet (14); the friction pad (19) is made of elastic material, and the outer surface of the friction pad (19) is arranged to be smoothly transitioned.

10. The casing damage detection device according to claim 9, characterized in that: A jet pipe (27) is fixedly connected to the bottom surface of the detection box (1), and a plurality of jet holes are provided at the top of the jet pipe (27). The jet pipe (27) and the conveying pipe (7) are fixedly connected to two electric telescopic rods (18) for driving the blade (16) to move up and down on both sides of the blade (16). A card slot is provided at the bottom of the detection box (1), and the bottoms of the two electric telescopic rods (18) are slidably engaged in the card slot. A lead screw nut mechanism (2) for driving the electric telescopic rods (18) to move is provided in the card slot.

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