A membrane adsorption device

Abstract

The present invention discloses a diaphragm adsorption device, comprising a mounting seat, a shaping outer sleeve, a shaping inner sleeve, and a suction cup for adsorbing diaphragms. The mounting seat comprises a support plate and an air pipe fixedly connected to the upper side of the support plate. The shaping outer sleeve comprises a connecting seat and an extrusion sleeve. The connecting seat is provided with a mounting port, a sliding sleeve fixedly connected to the mounting port. The shaping inner sleeve comprises a pipe portion and a shaping portion. The pipe portion is connected to the air pipe, the pipe portion passes through the sliding sleeve and is slidably connected to the sliding sleeve. The lower side of the shaping portion forms an extrusion edge arranged around the suction cup. The height of the lower side of the extrusion edge is higher than the height of the lower side of the suction cup. The shaping portion is connected to the connecting seat via a spring. A first slide groove is formed in the pipe portion. A ejector pin is slidably connected in the first slide groove. The ejector pin is provided with an air passage running through the upper and lower ends of the ejector pin. The lower end of the ejector pin is located on the lower side of the suction cup. The present invention provides a diaphragm adsorption device, in which the diaphragm is not easily offset from the bottle mouth.

Description

Technical Field

[0001] The present invention relates to the field of filling technology, in particular to a membrane adsorption device. Background Art

[0002] In the field of filling technology, an aluminum film is used to seal the mouth of a container. The sealing process includes placing the aluminum film on the mouth of the bottle. Initially, the aluminum film is a flat sheet structure that relies solely on the support provided by the mouth of the bottle to achieve initial bonding with the container. That is, the aluminum film lies flat on the mouth of the bottle, and the stability of the aluminum film is maintained solely by the friction between the two. Since the operating station for placing the aluminum film on the mouth of the bottle and the operating station for heat-sealing the aluminum film to adhere to the mouth of the bottle are located at different positions, the container after the aluminum film is added will be further transported to the heat-sealing station. Since the connection between the aluminum film and the mouth of the container in the horizontal direction is established only by friction, the container moves forward in a step-by-step manner. After starting and stopping, the inertia of the aluminum film itself forces the relative position of the aluminum film and the mouth of the bottle to change. In severe cases, the aluminum film may even detach from the container. This results in unstable placement of the aluminum film during the sealing process. Summary of the Invention

[0003] In order to solve the shortcoming that the existing aluminum film is easily deviated from the bottle mouth due to inertia when the container is started and stopped, the present invention provides a membrane adsorption device, which makes it difficult for the membrane to deviate from the bottle mouth.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A diaphragm adsorption device comprises a mounting seat, a shaping outer sleeve, a shaping inner sleeve and a suction cup for adsorbing a diaphragm, the mounting seat comprising a support plate and an air pipe fixedly connected to the upper side of the support plate, the shaping outer sleeve comprising a connecting seat fixedly connected to the lower side of the support plate and an extrusion sleeve fixedly connected to the lower side of the connecting seat, the connecting seat is provided with a mounting port corresponding to the air pipe, a sliding sleeve is fixedly connected in the mounting port, the shaping inner sleeve comprises a pipe portion and a shaping portion, the pipe portion is communicated with the air pipe, the pipe portion passes through the sliding sleeve and is slidably connected to the sliding sleeve, The suction cup is sleeved on the lower end of the tube portion, the shaping portion is fixedly connected to the lower end of the tube portion, the lower side of the shaping portion forms an extrusion edge arranged around the suction cup, the height of the lower side of the extrusion edge is higher than the height of the lower side of the suction cup, the height of the lower side of the extrusion sleeve is higher than the height of the lower side of the extrusion edge, the shaping portion is connected to the connecting seat through a spring; a first sliding groove is formed in the tube portion, a thimble is slidably connected in the first sliding groove, the thimble is provided with an air duct running through the upper and lower ends of the thimble, and the lower end of the thimble is located at the lower side of the suction cup.

[0006] Through the above-mentioned arrangement, the diaphragm is not easily offset from the bottle mouth. Specifically, the upper end of the trachea is fixedly connected to a pipe, and the pipe is connected to a vacuum pump. The vacuum pump can control the air pressure in the pipe. When the pipe and the trachea are connected, the pipe controls the air pressure in the suction cup through the trachea, the pipe part and the airway, thereby realizing the suction cup's adsorption and release of the diaphragm. The pipe is connected to a driving device, which can be set as an electric cylinder. The driving device can drive the pipe to move up and down and horizontally, thereby realizing the up and down movement and horizontal movement of the present application. When adsorbing the diaphragm, the present application moves to the upper side of the diaphragm under the action of the driving device. Under the action of the driving device, the suction cup moves downward and abuts against the diaphragm. The diaphragm pushes the ejector pin, causing the ejector pin to move upward along the first slide groove. The operation of the vacuum pump reduces the air pressure in the suction cup, and the diaphragm is adsorbed on the suction cup. Due to the reduction in air pressure, the suction cup is deformed. At this time, the diaphragm abuts against the extrusion edge. Under the action of the driving device, the present application moves horizontally to the upper side of the container. Under the action of the driving device, the present application moves downward. The diaphragm moves downward, the lower side of the diaphragm contacts the bottle mouth, the extrusion edge fits the bottle mouth, the extrusion edge presses the diaphragm tightly against the edge of the bottle mouth, the inner diameter of the extrusion sleeve fits the outer diameter of the bottle mouth, the driving device continues to drive the application downward, the spring is compressed, the extrusion sleeve continues to move downward, and under the action of the extrusion sleeve, the extrusion sleeve folds the part of the diaphragm extending outside the bottle mouth downward to form a flange, and the diaphragm is deformed from a flat plate structure to a cover-like structure with an opening downward. The flange can prevent the diaphragm and the bottle mouth from deviating, the vacuum pump stops working, and the air pressure in the suction cup begins to When the bottle is lifted up, the driving device drives the extrusion sleeve to move upward, and the spring extends. Under the action of the spring, the extrusion edge always squeezes the diaphragm on the bottle mouth, thereby preventing the diaphragm from being pulled up by the extrusion sleeve. When the spring returns to its initial state, the extrusion sleeve has been disengaged from the diaphragm. At this time, the driving device continues to drive the mounting seat to move upward. When the extrusion edge and the diaphragm are disengaged, the suction cup is still attached to the upper side of the diaphragm. It should be noted that due to the hysteresis of the air pressure in the suction cup, that is, when the vacuum pump stops working, the air pressure in the suction cup will not immediately return to atmospheric pressure. When the suction cup begins to move upward, the air pressure inside the suction cup may still be in a negative pressure state, that is, the suction cup still has a small suction force on the diaphragm. Under the action of the gravity of the ejector, the ejector exerts a downward pressure on the diaphragm. At this time, the ejector resists the suction force of the suction cup on the diaphragm, thereby preventing the diaphragm from being brought up by the suction cup. Finally, the suction cup and the diaphragm are disengaged, and the diaphragm is installed. At this point, when the container moves horizontally, the diaphragm will not deviate from the bottle mouth due to inertia. The diaphragm can move stably with the container to the next process for heat sealing.

[0007] Furthermore, the upper end of the pipe portion is threadedly connected to a limiting bolt, and the limiting bolt is provided with an air hole.

[0008] Through the above arrangement, the movement range of the ejector pin can be limited, thereby preventing the ejector pin from leaving the first chute upwards. The air hole is used to connect the air pipe and the first chute.

[0009] Furthermore, the lower end of the ejector pin is provided with an air leakage groove opening downward.

[0010] With the above arrangement, when the lower end of the ejector pin contacts the diaphragm, the suction cup is connected through the air leakage groove, the air channel and the air pipe, thereby facilitating the vacuum pump to change the air pressure in the suction cup, thereby facilitating the control of the suction cup to adsorb and release the diaphragm.

[0011] Furthermore, a sealing ring is provided between the mounting seat and the shaping jacket.

[0012] Through the above arrangement, good air tightness is achieved between the mounting seat and the shaping jacket.

[0013] Furthermore, the first slide groove includes an upper section and a lower section, the upper end of the upper section extends to the limiting bolt, the lower end of the lower section extends to the suction cup, the radius of the upper section is greater than the radius of the lower section, and the upper section and the lower section are transitioned by a limiting surface, the ejector includes a first section slidably connected to the upper section and a second section slidably connected to the lower section, and the lower end of the first section abuts against the limiting surface.

[0014] Through the above arrangement, the movement range of the ejector can be limited. Specifically, when the lower end of the first section abuts against the limiting surface, the ejector cannot continue to slide downward along the first sliding groove.

[0015] A diaphragm adsorption device comprises a mounting seat, a shaping outer sleeve, a shaping inner sleeve and a suction cup for adsorbing the diaphragm, the mounting seat comprising a support plate and an air pipe fixedly connected to the upper side of the support plate, the shaping outer sleeve comprising a connecting seat fixedly connected to the lower side of the support plate and an extrusion sleeve fixedly connected to the lower side of the connecting seat, the connecting seat is provided with a mounting port corresponding to the air pipe, a sliding sleeve is fixedly connected in the mounting port, the shaping inner sleeve comprises a pipe portion and a shaping portion, the pipe portion is communicated with the air pipe, the pipe portion passes through the sliding sleeve and is slidably connected to the sliding sleeve, the suction cup is sleeved on the The shaping part is fixedly connected to the lower end of the tube part, and the lower side of the shaping part forms an extrusion edge arranged around the suction cup, the lower side of the extrusion edge and the lower side of the suction cup are on the same horizontal plane, the height of the lower side of the extrusion sleeve is higher than the height of the lower side of the extrusion edge, and the shaping part is connected to the connecting seat through a spring; a second slide groove with a downward opening is formed between the lower end of the tube part and the shaping part, and a gravity ring is slidably connected in the second slide groove, and the gravity ring is arranged around the suction cup, and the height of the lower side of the gravity ring is lower than the height of the lower side of the suction cup.

[0016] Through the above-mentioned arrangement, the diaphragm is not easily offset from the bottle mouth. Specifically, the upper end of the trachea is fixedly connected to a pipe, and the pipe is connected to a vacuum pump. The vacuum pump can control the air pressure in the pipe. When the pipe and the trachea are connected, the pipe controls the air pressure in the suction cup through the trachea, the pipe part and the airway, thereby realizing the suction cup's adsorption and release of the diaphragm. The pipe is connected to a driving device, which can be set as an electric cylinder. The driving device can drive the pipe to move up and down and horizontally, thereby realizing the up and down movement and horizontal movement of the present application. When adsorbing the diaphragm, the present application moves to the upper side of the diaphragm under the action of the driving device. Under the action of the driving device, the suction cup moves downward and abuts against the diaphragm. The diaphragm pushes the gravity ring, causing the gravity ring to move upward along the second slide groove. The operation of the vacuum pump reduces the air pressure in the suction cup, and the diaphragm is adsorbed on the suction cup. Due to the reduction in air pressure, the suction cup is deformed. At this time, the diaphragm abuts against the extrusion edge. Under the action of the driving device, the present application moves horizontally to the upper side of the container. Under the action of the driving device, the present application moves downward. The diaphragm moves downward, the lower side of the diaphragm contacts the bottle mouth, the extrusion edge fits the bottle mouth, the extrusion edge presses the diaphragm tightly against the edge of the bottle mouth, the inner diameter of the extrusion sleeve fits the outer diameter of the bottle mouth, the driving device continues to drive the application downward, the spring is compressed, and the extrusion sleeve continues to move downward. Under the action of the extrusion sleeve, the extrusion sleeve folds the part of the diaphragm extending outside the bottle mouth downward to form a flange, and the diaphragm is deformed from a flat plate structure to a cover-like structure with an opening downward. The flange can prevent the diaphragm and the bottle mouth from deviating, the vacuum pump stops working, and the air pressure in the suction cup begins to recover. When the bottle is lifted up, the driving device drives the extrusion sleeve to move upward, and the spring stretches. Under the action of the spring, the extrusion edge always squeezes the diaphragm on the bottle mouth, thereby preventing the diaphragm from being pulled up by the extrusion sleeve. When the spring returns to its initial state, the extrusion sleeve has been disengaged from the diaphragm. At this time, the driving device continues to drive the mounting seat to move upward. When the extrusion edge and the diaphragm are disengaged, the suction cup is still attached to the upper side of the diaphragm. It should be noted that due to the hysteresis of the air pressure in the suction cup, that is, when the vacuum pump stops working, the air pressure in the suction cup will not immediately return to atmospheric pressure. When the suction cup When it starts to move upward, the air pressure in the suction cup may still be in a negative pressure state, that is, the suction cup still has a small suction force on the diaphragm. Under the action of the gravity of the gravity ring, the gravity ring has a downward pressure on the diaphragm. At this time, the gravity ring resists the suction force of the suction cup on the diaphragm, thereby preventing the diaphragm from being brought up by the suction cup. Finally, the suction cup and the diaphragm are detached, and the diaphragm is installed. At this time, when the container moves in the horizontal direction, the diaphragm will not deviate from the bottle mouth due to inertia. The diaphragm can move stably with the container to the next process for heat sealing.

[0017] Furthermore, the gravity ring includes a ring portion, the upper side of the ring portion extends outward to form a first limiting convex edge, the upper side of the ring portion is fixedly connected to a plurality of limiting columns, the lower side of the shaping portion extends inward to form a second limiting convex edge, and the first limiting convex edge abuts against the upper side of the second limiting convex edge.

[0018] Through the above setting, the movement range of the gravity ring can be limited. Specifically, when the first limiting convex edge and the second limiting convex edge are in contact, the gravity ring cannot continue to move downward along the second slide groove. When the limiting column and the upper side of the shaping part are in contact, the gravity ring cannot continue to move upward along the second slide groove.

[0019] Furthermore, a sealing protrusion is provided on the outer side of the lower end of the tube portion, the suction cup includes an adsorption portion and a connecting portion provided on the upper side of the adsorption portion, a sealing groove adapted to the sealing protrusion is provided on the inner side of the connecting portion, the connecting portion is sleeved on the tube portion, and the sealing protrusion is embedded in the sealing groove.

[0020] Through the above arrangement, the air tightness between the connecting portion and the tube portion is improved, thereby preventing air leakage from the suction cup.

[0021] Furthermore, the number of the limiting posts is three, and the limiting posts are arranged in a ring array with the axis of the ring portion as the center.

[0022] Through the above arrangement, the up and down movement of the gravity ring is made more stable.

[0023] Furthermore, the connecting seat is fixedly connected to a limiting flange, the limiting flange abuts against the lower side of the sliding sleeve, and the supporting plate abuts against the upper side of the sliding sleeve.

[0024] Through the above arrangement, stable installation of the sliding sleeve can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of Example 1 during operation.

[0026] Figure 2 This is a cross-sectional view of Example 1.

[0027] Figure 3 Schematic diagram of the suction cup adsorbing the film in Example 1.

[0028] Figure 4 Schematic diagram of the extrusion sleeve folded membrane of Example 1.

[0029] Figure 5 Schematic diagram of Example 1 and the diaphragm being separated.

[0030] Figure 6 This is a schematic diagram of Example 2.

[0031] Figure 7 Schematic diagram of the gravity ring of Example 2.

[0032] Figure 8 Schematic diagram of the suction cup adsorbing the film in Example 2.

[0033] Figure 9Schematic diagram of the extrusion sleeve folded membrane of Example 2.

[0034] Figure 10 Schematic diagram of Example 2 and diaphragm separation. DETAILED DESCRIPTION

[0035] The technical solution of the present invention will be further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0036] Example 1:

[0037] See also Figures 1 to 5 , a diaphragm adsorption device includes a mounting seat 11, a shaping outer sleeve 12, a shaping inner sleeve 13 and a suction cup 14 for adsorbing a diaphragm 21, the mounting seat 11 includes a support plate 111 and an air pipe 112 fixedly connected to the upper side of the support plate 111, the shaping outer sleeve 12 includes a connecting seat 121 fixedly connected to the lower side of the support plate 111 and an extrusion sleeve 122 fixedly connected to the lower side of the connecting seat 121, the connecting seat 121 is provided with a mounting port 1211 corresponding to the air pipe 112, a sliding sleeve 1212 is fixedly connected to the mounting port 1211, the shaping inner sleeve 13 includes a pipe portion 131 and a shaping portion 132, the pipe portion 131 is communicated with the air pipe 112, the pipe portion 131 passes through the sliding sleeve 1212 and is slidably connected to the sliding sleeve 1212 The suction cup 14 is sleeved on the lower end of the tube portion 131, and the shaping portion 132 is fixedly connected to the lower end of the tube portion 131. The lower side of the shaping portion 132 forms an extrusion edge 1321 arranged around the suction cup 14. The height of the lower side of the extrusion edge 1321 is higher than the height of the lower side of the suction cup 14. The height of the lower side of the extrusion sleeve 122 is higher than the height of the lower side of the extrusion edge 1321. The shaping portion 132 is connected to the connecting seat 121 through a spring 15; a first sliding groove 1311 is formed in the tube portion 131, and a ejector pin 1312 is slidably connected in the first sliding groove 1311. The ejector pin 1312 is provided with an air channel 1313 running through the upper and lower ends of the ejector pin 1312, and the lower end of the ejector pin 1312 is located at the lower side of the suction cup 14.

[0038] The above arrangement prevents the diaphragm 21 from being easily offset from the bottle mouth. Specifically, the upper end of the air tube 112 is fixedly connected to a pipe 31, which is connected to a vacuum pump (not shown in the figure). The vacuum pump can control the air pressure in the pipe. When the pipe is connected to the air tube 112, the pipe controls the air pressure in the suction cup 14 through the air tube 112, the pipe portion 131, and the air channel 1313, thereby achieving the suction and release of the diaphragm 21 by the suction cup 14. The pipe is connected to a drive device (not shown in the figure), which can be configured as an electric cylinder. The drive device can drive the pipe to move up and down and horizontally, thereby achieving the up and down movement and horizontal movement of the present application. When the diaphragm 21 is adsorbed, the present application moves to the upper side of the diaphragm 21 under the action of the driving device. Under the action of the driving device, the suction cup 14 moves downward and abuts against the diaphragm 21. The diaphragm 21 pushes the ejector pin 1312, causing the ejector pin 1312 to move upward along the first slide groove 1311. The vacuum pump runs, causing the air pressure in the suction cup 14 to decrease, and the diaphragm 21 is adsorbed on the suction cup 14. Due to the decrease in air pressure, the suction cup 14 is deformed. At this time, the diaphragm 21 abuts against the extrusion edge 1321. Under the action of the driving device, the present application moves horizontally to the upper side of the container 41. Figure 3 Under the action of the driving device, the present invention moves downward, the lower side of the diaphragm 21 abuts against the bottle mouth, the extrusion edge 1321 fits with the bottle mouth, the extrusion edge 1321 presses the diaphragm 21 against the edge of the bottle mouth, the inner diameter of the extrusion sleeve 122 fits with the outer diameter of the bottle mouth, the driving device continues to drive the present invention to move downward, the spring 15 is compressed, and the extrusion sleeve 122 continues to move downward. Under the action of the extrusion sleeve 122, the extrusion sleeve 122 folds the part of the diaphragm 21 extending outside the bottle mouth downward to form a flange. The diaphragm 21 is deformed from a flat plate structure to a cover-like structure with an opening downward. The flange can prevent the diaphragm 21 and the bottle mouth from deviating. Figure 4, the vacuum pump stops working, the air pressure in the suction cup 14 begins to rise, the driving device drives the extrusion sleeve 122 to move upward, the spring 15 extends, and under the action of the spring 15, the extrusion edge 1321 always squeezes the diaphragm 21 on the bottle mouth, thereby preventing the diaphragm 21 from being brought up by the extrusion sleeve 122. When the spring 15 returns to its initial state, the extrusion sleeve 122 has disengaged from the diaphragm 21. At this time, the driving device continues to drive the mounting base 11 to move upward. When the extrusion edge 1321 and the diaphragm 21 are disengaged, the suction cup 14 is still attached to the upper side of the diaphragm 21. It should be noted that Due to the hysteresis of the air pressure in the suction cup 14, that is, when the vacuum pump stops operating, the air pressure in the suction cup 14 will not immediately return to atmospheric pressure. When the suction cup 14 starts to move upward, the air pressure in the suction cup 14 may still be in a negative pressure state, that is, the suction cup 14 still has a small suction force on the diaphragm 21. Under the action of the gravity of the ejector pin 1312, the ejector pin 1312 exerts a downward pressure on the diaphragm 21. At this time, the ejector pin 1312 resists the suction force of the suction cup 14 on the diaphragm 21, thereby preventing the diaphragm 21 from being brought up by the suction cup 14. Finally, the suction cup 14 and the diaphragm 21 are detached. Figure 5 At this point, the diaphragm 21 is installed. At this time, when the container moves in the horizontal direction, the diaphragm 21 will not deviate from the bottle mouth due to inertia. The diaphragm 21 can stably move with the container to the next process for heat sealing.

[0039] As an implementation method, the upper end of the tube portion 131 is threadedly connected to a limiting bolt 1314 , and the limiting bolt 1314 is provided with an air hole 1315 .

[0040] Through the above arrangement, the movement range of the ejector pin 1312 can be limited, thereby preventing the ejector pin 1312 from moving upwardly away from the first chute 1311 . The air hole 1315 is used to connect the air pipe 112 and the first chute 1311 .

[0041] As an implementation method, the lower end of the ejector pin 1312 is provided with an air leakage groove 1316 opening downward.

[0042] Through the above arrangement, when the lower end of the ejector pin 1312 abuts against the diaphragm 21, the suction cup 14 is connected through the air leakage groove 1316, the air channel 1313 and the air pipe 112, thereby facilitating the vacuum pump to change the air pressure in the suction cup 14, and further facilitating the control of the suction cup 14 to adsorb and release the diaphragm 21.

[0043] As an implementation method, a sealing ring 113 is provided between the mounting seat 11 and the shaping jacket 12 .

[0044] Through the above arrangement, the mounting seat 11 and the shaping jacket 12 have good airtightness.

[0045] As an implementation method, the first slide groove 1311 includes an upper section 13111 and a lower section 13112, the upper end of the upper section 13111 extends to the limiting bolt 1314, and the lower end of the lower section 13112 extends to the suction cup 14, the radius of the upper section 13111 is greater than the radius of the lower section 13112, and the upper section 13111 and the lower section 13112 are transitioned by a limiting surface 13113, the ejector pin 1312 includes a first section 13121 slidably connected to the upper section 13111 and a second section 13122 slidably connected to the lower section 13112, and the lower end of the first section 13121 abuts against the limiting surface 13113.

[0046] Through the above arrangement, the movement range of the ejector pin 1312 can be limited. Specifically, when the lower end of the first section 13121 abuts against the limiting surface 13113 , the ejector pin 1312 cannot continue to slide downward along the first sliding groove 1311 .

[0047] Example 2:

[0048] See also Figure 6 and Figure 10 , a diaphragm adsorption device includes a mounting seat 11, a shaping outer sleeve 12, a shaping inner sleeve 13 and a suction cup 14 for adsorbing a diaphragm 21, the mounting seat 11 includes a support plate 111 and an air pipe 112 fixedly connected to the upper side of the support plate 111, the shaping outer sleeve 12 includes a connecting seat 121 fixedly connected to the lower side of the support plate 111 and an extrusion sleeve 122 fixedly connected to the lower side of the connecting seat 121, the connecting seat 121 is provided with a mounting port 1211 corresponding to the air pipe 112, a sliding sleeve 1212 is fixedly connected to the mounting port 1211, the shaping inner sleeve 13 includes a pipe portion 131 and a shaping portion 132, the pipe portion 131 is communicated with the air pipe 112, the pipe portion 131 passes through the sliding sleeve 1212 and is slidably connected to the sliding sleeve 1212, the suction cup 14 is sleeved on the lower end of the tube 131, and the shaping part 132 is fixedly connected to the lower end of the tube 131, and the lower side of the shaping part 132 forms an extrusion edge 1321 arranged around the suction cup 14, and the lower side of the extrusion edge 1321 and the lower side of the suction cup 14 are on the same horizontal plane, and the height of the lower side of the extrusion sleeve 122 is higher than the height of the lower side of the extrusion edge 1321, and the shaping part 132 is connected to the connecting seat 121 through a spring 15; a second sliding groove 1322 with an opening downward is formed between the lower end of the tube 131 and the shaping part 132, and a gravity ring 1323 is slidably connected in the second sliding groove 1322, and the gravity ring 1323 is arranged around the suction cup 14, and the height of the lower side of the gravity ring 1323 is lower than the height of the lower side of the suction cup 14.

[0049] The above arrangement prevents the diaphragm 21 from easily deviating from the bottle mouth. Specifically, a pipe is fixedly connected to the upper end of the air tube 112, and the pipe is connected to a vacuum pump. The vacuum pump can control the air pressure in the pipe. When the pipe and the air tube 112 are connected, the pipe controls the air pressure in the suction cup 14 through the air tube 112, the pipe portion 131, and the air channel 1313, thereby achieving the suction and release of the diaphragm 21 by the suction cup 14. The pipe is connected to a drive device, which can be configured as an electric cylinder. The drive device can drive the pipe to move up and down and horizontally, thereby achieving the up and down movement and horizontal movement of the present application. When the diaphragm 21 is adsorbed, the present application moves to the upper side of the diaphragm 21 under the action of the driving device. Under the action of the driving device, the suction cup 14 moves downward and abuts against the diaphragm 21. The diaphragm 21 pushes the gravity ring 1323, causing the gravity ring 1323 to move upward along the second slide groove 1322. The vacuum pump is running, causing the air pressure in the suction cup 14 to decrease, and the diaphragm 21 is adsorbed on the suction cup 14. Due to the decrease in air pressure, the suction cup 14 is deformed. At this time, the diaphragm 21 abuts against the extrusion edge 1321. Under the action of the driving device, the present application moves horizontally to the upper side of the container. Figure 8 Under the action of the driving device, the present invention moves downward, the lower side of the diaphragm 21 abuts against the bottle mouth, the extrusion edge 1321 fits with the bottle mouth, the extrusion edge 1321 presses the diaphragm 21 against the edge of the bottle mouth, the inner diameter of the extrusion sleeve 122 fits with the outer diameter of the bottle mouth, the driving device continues to drive the present invention to move downward, the spring 15 is compressed, and the extrusion sleeve 122 continues to move downward. Under the action of the extrusion sleeve 122, the extrusion sleeve 122 folds the part of the diaphragm 21 extending outside the bottle mouth downward to form a flange. The diaphragm 21 is deformed from a flat plate structure to a cover-like structure with an opening downward. The flange can prevent the diaphragm 21 and the bottle mouth from deviating. Figure 9 , the vacuum pump stops working, the air pressure in the suction cup 14 begins to rise, the driving device drives the extrusion sleeve 122 to move upward, the spring 15 extends, and under the action of the spring 15, the extrusion edge 1321 always squeezes the diaphragm 21 on the bottle mouth, thereby preventing the diaphragm 21 from being brought up by the extrusion sleeve 122. When the spring 15 returns to its initial state, the extrusion sleeve 122 has disengaged from the diaphragm 21. At this time, the driving device continues to drive the mounting base 11 to move upward. When the extrusion edge 1321 and the diaphragm 21 are disengaged, the suction cup 14 is still attached to the upper side of the diaphragm 21. It should be noted that due to the suction The hysteresis of the air pressure in the cup 14 means that when the vacuum pump stops working, the air pressure in the cup 14 will not return to atmospheric pressure immediately. When the cup 14 starts to move upward, the air pressure in the cup 14 may still be in a negative pressure state, that is, the cup 14 still has a small suction force on the diaphragm 21. Under the action of the gravity of the gravity ring 1323, the gravity ring 1323 exerts a downward pressure on the diaphragm 21. At this time, the gravity ring 1323 resists the suction force of the cup 14 on the diaphragm 21, thereby preventing the diaphragm 21 from being brought up by the cup 14. Finally, the cup 14 and the diaphragm 21 are detached. Figure 10 At this point, the diaphragm 21 is installed. At this time, when the container moves in the horizontal direction, the diaphragm 21 will not deviate from the bottle mouth due to inertia. The diaphragm 21 can stably move with the container to the next process for heat sealing.

[0050] As an implementation method, the gravity ring 1323 includes a ring portion 13231, the upper side of the ring portion 13231 extends outward to form a first limiting convex edge 13232, and the upper side of the ring portion 13231 is fixedly connected with a plurality of limiting columns 13233, and the lower side of the shaping portion 132 extends inward to form a second limiting convex edge 1324, and the first limiting convex edge 13232 abuts against the upper side of the second limiting convex edge 1324.

[0051] Through the above-mentioned setting, the movement range of the gravity ring 1323 can be limited. Specifically, when the first limiting protrusion 13232 and the second limiting protrusion 1324 are in contact, the gravity ring 1323 cannot continue to move downward along the second slide groove 1322. When the limiting column 13233 and the upper side of the shaping part 132 are in contact, the gravity ring 1323 cannot continue to move upward along the second slide groove 1322.

[0052] As an implementation method, a sealing protrusion 1317 is provided on the outer side of the lower end of the tube portion 131, and the suction cup 14 includes an adsorption portion 141 and a connecting portion 142 arranged on the upper side of the adsorption portion 141, and a sealing groove 1421 adapted to the sealing protrusion 1317 is provided on the inner side of the connecting portion 142, the connecting portion 142 is sleeved on the tube portion 131, and the sealing protrusion 1317 is embedded in the sealing groove 1421.

[0053] Through the above arrangement, the airtightness between the connecting portion 142 and the tube portion 131 is improved, thereby preventing the suction cup 14 from leaking.

[0054] As an implementation manner, the number of the limiting posts 13233 is three, and the limiting posts 13233 are arranged in a ring array with the axis of the ring portion 13231 as the center.

[0055] Through the above arrangement, the up and down movement of the gravity ring 1323 is made more stable.

[0056] As an implementation method, the connection seat 121 is fixedly connected to a limiting flange 1213 , the limiting flange 1213 abuts against the lower side of the sliding sleeve 1212 , and the support plate 111 abuts against the upper side of the sliding sleeve 1212 .

[0057] Through the above arrangement, the sliding sleeve 1212 can be stably installed.

[0058] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the appended claims of the present invention.

Claims

1. A membrane adsorption device, characterized in that: The top end of the lifting plug is connected with the support frame, and the bottom end of the lifting plug is connected with the support frame by a spring. A first slide groove is formed in the tube portion, a thimble is slidably connected in the first slide groove, and the thimble is provided with an air passage passing through the upper and lower ends of the thimble, and the lower end of the thimble is located at the lower side of the suction cup.

2. A membrane adsorption device according to claim 1, characterized in that: The upper end of the pipe portion is threadedly connected to a limiting bolt, and the limiting bolt is provided with an air hole.

3. The membrane adsorption device according to claim 1, characterized in that: The lower end of the ejector pin is provided with an air leakage groove opening downward.

4. The membrane adsorption device according to claim 1, characterized in that: A sealing ring is provided between the mounting seat and the shaping jacket.

5. The membrane adsorption device according to claim 1, characterized in that: The first slide groove includes an upper section and a lower section, the upper end of the upper section extends to the limiting bolt, and the lower end of the lower section extends to the suction cup. The radius of the upper section is greater than the radius of the lower section, and the upper section and the lower section are transitioned by a limiting surface. The ejector includes a first section slidably connected to the upper section and a second section slidably connected to the lower section, and the lower end of the first section abuts against the limiting surface.

6. A membrane adsorption device, characterized in that: The top end of the lifting plug is connected with the support frame, and the bottom end of the lifting plug is connected with the support frame by a spring. A second chute opening downward is formed between the lower end of the tube and the shaping portion, and a gravity ring is slidably connected in the second chute. The gravity ring is arranged around the suction cup, and the lower side of the gravity ring is lower than the lower side of the suction cup.

7. The membrane adsorption device according to claim 6, characterized in that: The gravity ring includes a ring portion, the upper side of the ring portion extends outward to form a first limiting convex edge, the upper side of the ring portion is fixedly connected to a plurality of limiting columns, the lower side of the shaping portion extends inward to form a second limiting convex edge, and the first limiting convex edge abuts against the upper side of the second limiting convex edge.

8. The membrane adsorption device according to claim 6, characterized in that: A sealing protrusion is provided on the outer side of the lower end of the tube portion, the suction cup includes an adsorption portion and a connecting portion provided on the upper side of the adsorption portion, a sealing groove adapted to the sealing protrusion is provided on the inner side of the connecting portion, the connecting portion is sleeved on the tube portion, and the sealing protrusion is embedded in the sealing groove.

9. The membrane adsorption device according to claim 7, characterized in that: The number of the limiting posts is three, and the limiting posts are arranged in a ring array with the axis of the ring portion as the center.

10. The membrane adsorption device according to claim 6, characterized in that: The mounting seat is fixedly connected to a limiting flange, the limiting flange abuts against a lower side of the sliding sleeve, and the support plate abuts against an upper side of the sliding sleeve.

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