Crack detection device for glass wine bottle

Abstract

The invention relates to the technical field of wine bottle crack detection, in particular to a glass wine bottle crack detection device which comprises a transparent water tank and a fixing frame, the fixing frame is located above the transparent water tank, and the two ends of the fixing frame are detachably connected with the left side face and the right side face of the transparent water tank respectively. A fixing disc is fixedly inserted into the portion, located above the transparent water tank, of the fixing frame, an interlayer cover pipe is arranged below the fixing disc, the outer ring face of the interlayer cover pipe is elastically connected with the bottom face of the fixing disc, and the axis of the interlayer cover pipe is of a through-hole-shaped structure. By arranging the interlayer cover pipe and the blocking elastic air bag, the blocking elastic air bag gradually expands along with the increase of the air pressure in the clamping cavity layer to block a wine bottle opening, and then when the clamping cavity layer continues to be inflated, the interlayer cover pipe is pushed to move downwards relative to the inner column along with the increase of the air pressure in the wine bottle; the bottle is pushed into the deep position of liquid in the transparent water tank, and whether bubbles are generated along with increase of air pressure in the bottle can be observed.

Description

Technical Field

[0001] The invention relates to the technical field of wine bottle crack detection, and in particular to a crack detection device for a glass wine bottle. Background Art

[0002] Glass products are prone to cracks due to the influence of production process and storage environment. In wine production, it is necessary to detect whether there are cracks in the glass bottles before canning. Before canning, the glass bottles have generally undergone surface beautification treatments such as glazing and labeling. The cracks cannot be directly observed by the human eye. In modern industrial production, an airtightness detection machine is used to seal and blow the glass bottles. The air pressure is set within an appropriate range according to the thickness and shape of the glass bottles. Glass bottles with cracks will be blown up, otherwise the glass will be intact.

[0003] Chinese patent announcement number CN109029875B discloses a crack detection device for glass wine bottles, comprising a first conveyor line and a second conveyor line arranged at intervals, a spiral indexing mechanism arranged on one side of the first conveyor line, a rotary conveyor mechanism offset between the first conveyor line and the second conveyor line, and the spiral indexing mechanism is used to adjust the movement rhythm of the wine bottle along the first conveyor line to be consistent with the rhythm of the rotary conveyor mechanism; the rotary conveyor mechanism comprises a frame and a star wheel, a support plate is fixed on the frame, the support plate, the star wheel and the guard plate are arranged coaxially, the star wheel is located above the support plate, and the star wheel is evenly provided with a plurality of conveying units along the circumferential direction, the second rotary motor drives the star wheel to rotate continuously, the glass wine bottle enters the support plate from the first conveyor line, and the star wheel drives the glass wine bottle to rotate to the second conveyor line; the rotary detection mechanism is arranged directly above the rotary conveyor mechanism, and the rotary detection mechanism performs crack detection on the glass wine bottle; the rejection mechanism is arranged in the middle of the second conveyor line, and the rejection mechanism rejects the glass wine bottle with cracks.

[0004] Chinese patent announcement number CN109060276B discloses a crack detection device for glass wine bottles, comprising a first conveyor line and a second conveyor line arranged side by side; a frame is located between the first conveyor line and the second conveyor line, and a plurality of crack detection units with the same structure are arranged on the frame at the same distance along the movement direction of the first conveyor line; a first push mechanism and a second push mechanism in the crack detection unit are both installed on the frame, an intermediate channel is arranged perpendicular to the first conveyor line and is located between the first conveyor line and the second conveyor line, the first push mechanism and the second push mechanism are arranged along the intermediate channel and are located above the intermediate conveyor channel, the intermediate channel comprises a bottom plate, a temporary storage position and a loophole are arranged on the bottom plate, the temporary storage position is close to the first conveyor line, the loophole is close to the second conveyor line, the detection mechanism is used to detect glass wine bottles, and the loophole is used to miss glass wine bottles with cracks. The device can automatically detect whether there are cracks in glass wine bottles.

[0005] However, there is a certain risk in detecting whether there are cracks in a wine bottle by blowing it up. In modern industrial production, there is also a detection method, which connects the bottle mouth of the wine bottle with a blowing structure, places the wine bottle to be detected in a liquid, and increases the air pressure in the wine bottle by blowing air into the wine bottle. Whether there are bubbles in the liquid is used to determine whether the wine bottle is cracked. However, the detection device in the prior art is not convenient for completely sealing the bottle mouths of different calibers, so that it is inconvenient to immerse the bottle mouth in the liquid, resulting in the wine bottle being located at a shallow depth in the liquid, the bubble rising distance is short, and the bubbles generated are easily missed. For this reason, a crack detection device for a glass wine bottle is proposed. Summary of the invention

[0006] In order to allow the wine bottles with different calibers to be inserted deep into liquid after being sealed, so as to facilitate observation of generated bubbles, the present invention provides a crack detection device for glass wine bottles.

[0007] The present invention provides a crack detection device for a glass wine bottle, which adopts the following technical scheme: it comprises a transparent water tank and a fixing frame, wherein the fixing frame is located above the transparent water tank, and the two ends of the fixing frame are detachably connected to the left and right sides of the transparent water tank respectively, and the part of the fixing frame located above the transparent water tank is fixedly plugged with a fixing disk, and a sandwich cover tube is arranged below the fixing disk, the outer annular surface of the sandwich cover tube is elastically connected to the bottom surface of the fixing disk, the axis of the sandwich cover tube is a through-hole structure, and the outer surface of the sandwich cover tube is connected to the bottom surface of the sandwich cover tube. An interlayer cavity is provided between the through-hole structures, an inner column is rotatably penetrated on the upper surface of the fixed disk, the lower end of the inner column is slidably inserted into the through-hole structure of the interlayer cover tube, an air supply structure is slidably penetrated on the upper surface of the interlayer cover tube, the lower end of the air supply structure is located inside the interlayer cavity, the fixed disk is fixedly sleeved on the lower end of the air supply structure, a notch is provided on the outer ring surface of the lower end of the interlayer cover tube, a sealing elastic airbag is fixedly inserted inside the notch, an air pressure valve A is fixedly penetrated on the bottom surface of the interlayer cover tube, and the upper end of the air pressure valve A is located inside the interlayer cavity.

[0008] Optionally, the air supply structure includes a ventilation ring and a powered air pump, the bottom surface of the ventilation ring is fixedly connected to a plurality of single-head vertical pipes, the fixed plate is fixedly sleeved on the outer surface of the single-head vertical pipe, the sandwich cover pipe is slidably sleeved on the outer surface of the single-head vertical pipe, the lower end of the single-head vertical pipe is located inside the sandwich cover pipe, and the upper end of the ventilation ring is fixedly sleeved on the air outlet end of the powered air pump.

[0009] Optionally, the upper end of the single-head vertical pipe is open, and the lower end of the single-head vertical pipe is closed. An air outlet is provided at one end of the lower end of the single-head vertical pipe close to the axis of the interlayer cover pipe. The air outlet is contacted and sealed with an air blocking plate on one side close to the axis of the interlayer cover pipe. The air blocking plate is fixed to the inner wall of the interlayer cavity layer, and an air pressure valve B is installed on the upper surface of the ventilation ring.

[0010] Optionally, a bracket is arranged below the sandwich cover tube, a circular ring is fixed to the upper end of the bracket, the circular ring is slidably sleeved on the outer surface of the sandwich cover tube, the bottom surface of the circular ring is elastically connected to the outer surface of the sandwich cover tube, and the lower end of the bracket is arranged as a disc-shaped structure coaxial with the sandwich cover tube.

[0011] Optionally, the inner wall of the outer ring of the sandwich layer is provided with a plurality of through grooves, which are evenly distributed in three rows inside the sandwich layer, and a plurality of air pressure baffles are slidably inserted inside the through grooves, and the air pressure baffles are elastically connected to the inner wall of the through grooves.

[0012] Optionally, the outer annular surface of the sealing elastic airbag is provided with a plurality of annular grooves, and a plurality of suction cups are fixed inside each annular groove.

[0013] Optionally, the bottom surface of the inner column is provided with a plurality of evenly distributed air relief slots A, the outer diameter of the inner column and the fixed plate is smaller than the outer diameter of the rest of the inner column, the upper surface of the inner column and above each air relief slot A are provided with air relief slots B, and the upper surface of the fixed plate is provided with a plurality of evenly distributed ventilation slots.

[0014] Optionally, the number of the ventilation slots is equal to the number of the relief slots A, the distance between the ventilation slots and the axis of the inner column is equal to the distance between the relief slots A and the axis of the inner column, the relief slots A are coaxially arranged with the relief slots B located below, the sizes of the relief slots A, B and the ventilation slots are adapted, and the width between each two adjacent ventilation slots is greater than the width of the ventilation slots.

[0015] Optionally, the inner column is located between a plurality of single-ended vertical tubes, and the plurality of single-ended vertical tubes are evenly distributed in an axial circumferential array of the sandwich cover tube.

[0016] In summary, the present invention includes the following beneficial technical effects: 1. The present invention arranges a sandwich cover tube, a sealing elastic airbag and an inner column, so that the sealing elastic airbag is located in the mouth of the wine bottle, and inflates the inner cavity layer. As the air pressure inside the sandwich layer increases, the sealing elastic airbag gradually expands to seal the mouth of the wine bottle. Then, when the sandwich layer continues to be inflated, the air pressure in the sandwich layer reaches a certain level and the air pressure valve A opens, so that the gas in the sandwich layer can enter the interior of the wine bottle through the air pressure valve A. As the air pressure inside the wine bottle increases, the sandwich cover tube is pushed downward relative to the inner column, and the bottle is pushed into the deep liquid inside the transparent water tank. It can be observed whether bubbles are generated as the air pressure inside the bottle increases, and the detection is safe.

[0017] 2. The present invention arranges a bracket, a circular ring, an air blocking plate and an air outlet, and places the wine bottle above the lower end circular disc structure of the bracket, and at the same time places a sealing elastic airbag at the bottle mouth of the wine bottle. The gravity of the wine bottle drives the interlayer cover tube to move downward a certain distance relative to the fixed plate, driving the air blocking plate and the air outlet to be misaligned, so that the single-head vertical tube can inflate the interlayer cavity, effectively preventing the sealing elastic airbag from inflating the interlayer cavity before being inserted into the wine bottle, and making it inconvenient to insert the sealing elastic airbag into the wine bottle after it is expanded.

[0018] 3. The present invention provides a through groove and an air pressure baffle. When the air pressure in the sandwich layer increases, the air pressure baffle is gradually pushed out of the through groove. The extended air pressure baffle blocks the circular ring, effectively preventing the sealing elastic airbag from being separated from the wine bottle after the air pressure in the wine bottle increases.

[0019] 4. The present invention sets an air relief slot A, an air relief slot B and a ventilation slot. Before testing, the inner column is rotated to misalign the air relief slot A with the ventilation slot, so that the air pressure below the inner column can be increased. After the test is completed, the inner column is rotated to drive the ventilation slot to connect with the air relief slot A and the air relief slot B, and the air pressure below the inner column and in the wine bottle is relieved, so that the wine bottle moves downward and separates from the liquid due to the elastic connection between the interlayer cover tube and the fixed plate, and then the power air pump is stopped to separate the wine bottle from the sealing elastic airbag, thereby effectively preventing the test liquid from entering the wine bottle and causing pollution to the inside of the wine bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 is a schematic structural diagram of the connection between the fixing frame and the fixing plate in an embodiment of the present invention; Figure 3 is a schematic diagram of the structure of the connection between the sandwich cover tube and the fixed disk in an embodiment of the present invention; Figure 4 It is a schematic front view of some structures in an embodiment of the present invention; Figure 5 Schematic diagram of the internal structure of the inner column in an embodiment of the present invention; Figure 6 Schematic diagram of the internal structure of the sandwich cover tube in an embodiment of the present invention; Figure 7 2 is a schematic diagram of the structure of the connection between the blocking elastic airbag and the gap in an embodiment of the present invention; Figure 8 In the embodiment of the present invention Figure 7 A schematic diagram of the structure enlargement in the middle; Fig. 9 In the embodiment of the present invention Figure 7 Enlarged schematic diagram of the structure at point B in the middle.

[0021] Figure numerals: 1. transparent water tank; 2. fixing frame; 3. fixing plate; 4. sandwich cover tube; 5. sandwich cavity layer; 6. air supply structure; 61. ventilation ring; 62. power air pump; 63. single-head vertical pipe; 631. air outlet; 632. air blocking plate; 633. air pressure valve B; 7. sealing elastic air bag; 8. notch; 9. air pressure valve A; 10. bracket; 11. circular ring; 12. transparent groove; 13. air pressure baffle; 14. ring groove; 15. suction cup; 16. air relief slot A; 17. inner column; 18. air relief slot B; 19. ventilation slot. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] It should be noted that all directional indications in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0024] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0025] The following is combined with Figure 1-9 The present invention is described in further detail.

[0026] The embodiment of the present invention discloses a crack detection device for a glass wine bottle. Figure 1-9As shown, it includes a transparent water tank 1 and a fixing frame 2, the fixing frame 2 is located above the transparent water tank 1, the transparent water tank 1 is made of transparent material, which is convenient for observing the bubbles generated below the liquid surface, the two ends of the fixing frame 2 are detachably connected to the left and right sides of the transparent water tank 1 respectively, the part of the fixing frame 2 located above the transparent water tank 1 is fixedly plugged with a fixing disk 3, a sandwich cover tube 4 is arranged below the fixing disk 3, the outer annular surface of the sandwich cover tube 4 is elastically connected to the bottom surface of the fixing disk 3, the axis of the sandwich cover tube 4 is a through-hole structure, and a sandwich cavity layer 5 is opened between the outer surface of the sandwich cover tube 4 and the through-hole structure of the sandwich cover tube 4, the fixing frame 2, the fixing disk 3 and the sandwich cover tube 4 can be increased according to the number of inspections, and multiple wine bottles can be inspected at the same time.

[0027] A bracket 10 is arranged below the sandwich cover tube 4, and a ring 11 is fixed to the upper end of the bracket 10. The ring 11 is slidably sleeved on the outer surface of the sandwich cover tube 4. The bottom surface of the ring 11 is elastically connected to the outer surface of the sandwich cover tube 4, and the lower end of the bracket 10 is arranged as a disc-shaped structure coaxial with the sandwich cover tube 4.

[0028] The inner wall of the outer ring of the sandwich layer 5 is provided with a plurality of through grooves 12, and the plurality of through grooves 12 are evenly distributed in three rows inside the sandwich layer 5. A plurality of air pressure baffles 13 are slidably inserted inside the through grooves 12, and the air pressure baffles 13 are elastically connected to the inner walls of the through grooves 12. When the wine bottle is inspected, the bottom of the wine bottle is placed above the disc-shaped structure of the bracket 10. When the air pressure in the sandwich layer 5 increases, the air pressure baffles 13 are gradually pushed out of the through grooves 12, and the extended air pressure baffles 13 block the circular ring 11.

[0029] An inner column 17 is rotatably penetrated through the upper surface of the fixed plate 3 , and the lower end of the inner column 17 is slidably inserted into the through-hole structure of the sandwich cover tube 4 .

[0030] The bottom surface of the inner column 17 is provided with a plurality of evenly distributed air relief slots A16, the outer diameter of the inner column 17 where it cooperates with the fixed plate 3 is smaller than the outer diameter of the rest of the inner column 17, the upper surface of the inner column 17 and above each air relief slot A16 are provided with air relief slots B18, and the upper surface of the fixed plate 3 is provided with a plurality of evenly distributed ventilation slots 19.

[0031] The number of ventilation slots 19 is equal to the number of air relief slots A16, the distance between the ventilation slots 19 and the axis of the inner column 17 is equal to the distance between the air relief slots A16 and the axis of the inner column 17, the air relief slots A16 are coaxially arranged with the air relief slots B18 located below, the sizes of the air relief slots A16, the air relief slots B18 and the ventilation slots 19 are adapted to each other, the width between each two adjacent ventilation slots 19 is greater than the width of the ventilation slots 19, to ensure that the air relief slots A16 can be completely misaligned with the ventilation slots 19, and the inner column 17 is rotated before testing to misalign the air relief slots A16 and the ventilation slots 19, so that the air pressure below the inner column 17 can be increased, and after the test is completed, the inner column 17 is rotated to drive the ventilation slots 19 to communicate with the air relief slots A16 and the air relief slots B18, so as to relieve the air pressure below the inner column 17 and in the wine bottle.

[0032] An air supply structure 6 is slidably penetrated through the upper surface of the sandwich cover tube 4 . The lower end of the air supply structure 6 is located inside the sandwich cavity layer 5 . The fixing plate 3 is fixedly sleeved on the lower end of the air supply structure 6 .

[0033] The air supply structure 6 includes a ventilation ring 61 and a powered air pump 62. The bottom surface of the ventilation ring 61 is fixedly connected to a plurality of single-head vertical pipes 63. The fixed plate 3 is fixedly sleeved on the outer surface of the single-head vertical pipe 63. The sandwich cover pipe 4 is slidably sleeved on the outer surface of the single-head vertical pipe 63. The lower end of the single-head vertical pipe 63 is located inside the sandwich cover pipe 4. The upper end of the ventilation ring 61 is fixedly sleeved on the air outlet end of the powered air pump 62.

[0034] A notch 8 is provided on the outer ring surface of the lower end of the sandwich cover tube 4, and a sealing elastic airbag 7 is fixedly inserted inside the notch 8. The material of the sealing elastic airbag 7 can produce elastic expansion after inflation, and a plurality of annular grooves 14 are provided on the outer ring surface of the sealing elastic airbag 7. A plurality of suction cups 15 are fixed inside each of the annular grooves 14. When the sealing elastic airbag 7 expands and contacts the inner wall of the wine bottle mouth, the suction cup 15 is driven to contact the wine bottle, thereby effectively preventing the sealing elastic airbag 7 from moving up and down relative to the wine bottle.

[0035] An air pressure valve A9 is fixedly passed through the bottom surface of the sandwich cover tube 4 , and the upper end of the air pressure valve A9 is located inside the sandwich cavity layer 5 .

[0036] The upper end of the single-head vertical tube 63 is open, and the lower end of the single-head vertical tube 63 is closed. An air outlet 631 is provided at one end of the lower end of the single-head vertical tube 63 close to the axis of the sandwich cover tube 4, and an air blocking plate 632 is in contact with and blocked on one side of the air outlet 631 close to the axis of the sandwich cover tube 4. When no wine bottle is placed on the bracket 10, the air blocking plate 632 blocks the air outlet 631 under the elastic connection between the sandwich cover tube 4 and the fixed disk 3, effectively preventing the sealing elastic airbag 7 from being inflated into the sandwich cavity layer 5 before the sealing elastic airbag 7 is inserted into the wine bottle. After the sealing elastic airbag 7 is inflated, it is inconvenient to insert it into the wine bottle. After the wine bottle is placed above the lower end disc structure of the bracket 10, the gravity of the wine bottle drives the sandwich cover tube 4 to move downward a certain distance relative to the fixed disk 3, so that the air blocking plate 632 is misaligned with the air outlet 631, and the powered air pump 62 can inflate the sandwich cavity layer 5 through the single-head vertical tube 63 and the air outlet 631.

[0037] The air blocking plate 632 is fixed to the inner wall of the sandwich layer 5, and an air pressure valve B633 is installed on the upper surface of the ventilation ring 61. The inner column 17 is located between multiple single-end vertical pipes 63, and the multiple single-end vertical pipes 63 are evenly distributed in an array around the axis of the sandwich cover tube 4. The sealing elastic airbag 7 gradually expands with the increase of the internal air pressure of the sandwich layer 5 and contacts the inner wall of the bottle mouth of the wine bottle. The expanded sealing elastic airbag 7 blocks the bottle mouth. At this time, the air pressure in the sandwich layer 5 cannot open the air pressure valve A9, and the air pressure in the sandwich layer 5 continues to After the increase, the air pressure pushes the air pressure valve A9 to open, allowing the gas to enter the bottom of the inner column 17 and the inside of the wine bottle. Then, when the air pressure in the wine bottle and under the inner column 17 is too high, the air pressure in the ventilation ring 61 increases synchronously, and the air pressure can push the air pressure valve B633 to open, and the internal air pressure is relieved. The air pressure opening range of the air pressure valve A9 and the air pressure valve B633 and the elasticity of the elastic connection between the interlayer cover tube 4 and the fixed disk 3 meet the structural operating conditions. After one end of the air pressure valve is subjected to a certain pressure, the two ends of the valve body can be connected.

[0038] The working principle is as follows: the wine bottle is placed on the lower disc structure of the bracket 10, and the sealing elastic airbag 7 is placed at the mouth of the wine bottle. The gravity of the wine bottle drives the interlayer cover tube 4 to move downward a certain distance relative to the fixed plate 3, so that the air blocking plate 632 and the air outlet 631 are misaligned. The power air pump 62 inflates air into the sandwich layer 5 through the single-head vertical pipe 63 and the air outlet 631. The sealing elastic airbag 7 gradually expands and contacts the inner wall of the mouth of the wine bottle as the air pressure inside the sandwich layer 5 increases. The expanded sealing elastic airbag 7 blocks the mouth of the wine bottle. At the same time, when the air pressure in the sandwich layer 5 increases, it gradually pushes the air pressure baffle 13 in the through groove. 12 extends outward, and the extended air pressure baffle 13 blocks the circular ring 11, which effectively prevents the sealing elastic airbag 7 from being separated from the wine bottle after the air pressure in the wine bottle increases. Then, when the interlayer layer 5 continues to be inflated, the air pressure in the interlayer layer 5 continues to increase. After the air pressure in the interlayer layer 5 reaches a certain level, the air pressure valve A9 opens, so that the gas in the interlayer layer 5 can enter the interior of the wine bottle through the air pressure valve A9. As the air pressure in the wine bottle increases, the interlayer cover tube 4 is pushed downward relative to the inner column 17, and the bottle is pushed into the deep liquid inside the transparent water tank 1, so that it can be observed whether bubbles are generated as the air pressure inside the bottle increases.

[0039] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A crack detection device for a glass wine bottle, comprising a transparent water tank (1) and a fixing frame (2), characterized in that: The fixing frame (2) is located above the transparent water tank (1), and the two ends of the fixing frame (2) are detachably connected to the left and right sides of the transparent water tank (1), respectively. The part of the fixing frame (2) located above the transparent water tank (1) is fixedly plugged with a fixing plate (3), and a sandwich cover tube (4) is arranged below the fixing plate (3). The outer annular surface of the sandwich cover tube (4) is elastically connected to the bottom surface of the fixing plate (3), and the axis of the sandwich cover tube (4) is a through-hole structure. A sandwich cavity layer (5) is provided between the outer surface of the sandwich cover tube (4) and the through-hole structure of the sandwich cover tube (4). The upper surface of the fixing plate (3) is rotated. An inner column (17) is inserted through the inner column (17), and the lower end of the inner column (17) is slidably inserted into the through-hole structure of the sandwich cover tube (4). The upper surface of the sandwich cover tube (4) is slidably inserted with an air supply structure (6), and the lower end of the air supply structure (6) is located inside the sandwich cavity layer (5). The fixed plate (3) is fixedly sleeved on the lower end of the air supply structure (6). A notch (8) is opened on the outer ring surface of the lower end of the sandwich cover tube (4), and a sealing elastic air bag (7) is fixedly inserted inside the notch (8). An air pressure valve A (9) is fixedly inserted through the bottom surface of the sandwich cover tube (4), and the upper end of the air pressure valve A (9) is located inside the sandwich cavity layer (5).

2. A crack detection device for a glass wine bottle according to claim 1, characterized in that: The air supply structure (6) comprises a ventilation ring (61) and a power air pump (62); the bottom surface of the ventilation ring (61) is fixedly connected to a plurality of single-end vertical pipes (63); the fixed plate (3) is fixedly sleeved on the outer surface of the single-end vertical pipe (63); the sandwich cover pipe (4) is slidably sleeved on the outer surface of the single-end vertical pipe (63); the lower end of the single-end vertical pipe (63) is located inside the sandwich cover pipe (4); and the upper end of the ventilation ring (61) is fixedly sleeved on the air outlet end of the power air pump (62).

3. A crack detection device for a glass wine bottle according to claim 2, characterized in that: The upper end of the single-end vertical pipe (63) is open, and the lower end of the single-end vertical pipe (63) is closed. An air outlet (631) is provided at one end of the lower end of the single-end vertical pipe (63) close to the axis of the sandwich cover pipe (4). A gas blocking plate (632) is provided on one side of the air outlet (631) close to the axis of the sandwich cover pipe (4). The gas blocking plate (632) is fixed to the inner wall of the sandwich cavity layer (5). An air pressure valve B (633) is installed on the upper surface of the ventilation ring (61).

4. The crack detection device for a glass wine bottle according to claim 1, characterized in that: A bracket (10) is arranged below the sandwich cover tube (4), a circular ring (11) is fixed to the upper end of the bracket (10), the circular ring (11) is slidably sleeved on the outer surface of the sandwich cover tube (4), the bottom surface of the circular ring (11) is elastically connected to the outer surface of the sandwich cover tube (4), and the lower end of the bracket (10) is arranged as a disc-shaped structure coaxial with the sandwich cover tube (4).

5. A crack detection device for a glass wine bottle according to claim 4, characterized in that: The inner wall of the outer ring of the sandwich layer (5) is provided with a plurality of through grooves (12), the plurality of through grooves (12) being evenly distributed in three rows inside the sandwich layer (5), a plurality of air pressure baffles (13) being slidably inserted inside the through grooves (12), the air pressure baffles (13) being elastically connected to the inner wall of the through grooves (12).

6. The crack detection device for a glass wine bottle according to claim 1, characterized in that: The outer annular surface of the sealing elastic airbag (7) is provided with a plurality of annular grooves (14), and a plurality of suction cups (15) are fixed inside each annular groove (14).

7. The crack detection device for a glass wine bottle according to claim 1, characterized in that: The bottom surface of the inner column (17) is provided with a plurality of evenly distributed air relief slots A (16); the outer diameter of the portion where the inner column (17) and the fixed plate (3) meet is smaller than the outer diameter of the rest of the inner column (17); an air relief slot B (18) is provided on the upper surface of the inner column (17) and above each air relief slot A (16); and the upper surface of the fixed plate (3) is provided with a plurality of evenly distributed ventilation slots (19).

8. The crack detection device for a glass wine bottle according to claim 7, characterized in that: The number of the vent holes (19) is equal to the number of the air relief holes A (16); the distance between the vent holes (19) and the axis of the inner column (17) is equal to the distance between the vent holes A (16) and the axis of the inner column (17); the air relief holes A (16) and the air relief holes B (18) located below are coaxially arranged; the sizes of the air relief holes A (16), the air relief holes B (18) and the vent holes (19) are adapted; and the width between each two adjacent vent holes (19) is greater than the width of the vent holes (19).

9. The crack detection device for a glass wine bottle according to claim 3, characterized in that: The inner column (17) is located between a plurality of single-ended vertical tubes (63), and the plurality of single-ended vertical tubes (63) are evenly distributed in an array around the axis of the sandwich cover tube (4).

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