Sucking disc structure capable of rapidly switching plugging plates and demolding equipment

Abstract

The utility model relates to the technical field of suction cup structures, in particular to a suction cup structure capable of rapidly switching plugging plates and demolding equipment. The suction cup base of the suction cup structure capable of rapidly switching the plugging plate is communicated with suction equipment through a pipeline, and the suction cup base is provided with a downward opening; the cover plate is detachably arranged below the suction cup base so as to block the opening, a plurality of suction holes distributed in an array mode are formed in the cover plate, suction nozzles are installed in the suction holes, the suction cup base and the cover plate jointly define a containing space, and the containing space is communicated with the pipeline and an air channel of each suction nozzle; and any one of the blocking plates is mounted in the cover plate, and the blocking plates are used for blocking the air channel of the suction nozzle in a material-free area. The additionally-arranged blocking plates can block the suction nozzles in the areas without materials, the materials can be better adsorbed, and the multiple blocking plates of different types can adapt to adsorption of the materials of different types.

Description

Technical Field

[0001] This utility model relates to the field of suction cup structure technology, specifically a suction cup structure and demolding device that can quickly switch sealing plates. Background Technology

[0002] Vacuum suction cups are a common type of industrial equipment widely used in various automation systems. They use vacuum suction to grasp and move various objects. However, during use, when the material does not match the suction cup's width, the portion of the suction cup not covering the material will leak air. This weakens the air pressure inside the suction cup, reducing the suction force and making it easy for the suction cup to fail to hold the material firmly. Utility Model Content

[0003] The purpose of this invention is to propose a suction cup structure and demolding device that can quickly switch sealing plates, aiming to solve the technical problem that existing suction cup devices are prone to failure to hold materials or not holding them tightly.

[0004] To achieve the above objectives, this utility model proposes a suction cup structure with a quick-switching sealing plate, including a suction cup base, which is connected to a suction device through a pipe, and the suction cup base has a downward-facing opening.

[0005] A cover plate is detachably disposed below the suction cup base to seal the opening. The cover plate is provided with a plurality of suction holes arranged in an array. A suction nozzle is installed in the suction hole. The suction cup base and the cover plate together form a receiving space. The receiving space is connected to the air passage of the pipe and the suction nozzle respectively.

[0006] Multiple sealing plates, with any one of the sealing plates installed inside the cover plate, the sealing plates being used to block the air passage of the nozzle in the area without material.

[0007] Preferably, the sealing plate is provided with a plurality of spaced-apart vents, which are used to communicate with the air passage of the nozzle. The area on the sealing plate without the vents is a sealing area, which is used to block the air passage of the nozzle in the area without material.

[0008] Preferably, the vent is polygonal, circular, or elliptical in shape.

[0009] Preferably, the suction cup base and the cover plate are connected to each other by a plurality of fastening components;

[0010] The fastening assembly includes a hook portion, a locking portion, a movable portion, a mounting base, a connecting rod, and a rotating shaft. The mounting base is disposed on the outer side wall of the bottom end of the suction cup seat. The hook portion is disposed on the outer side wall of the cover plate. The movable portion is hinged to the mounting base via the rotating shaft. The locking portion is connected to the movable portion via the connecting rod, such that: when the movable portion is pulled, the movable portion rotates along the rotating shaft, causing the locking portion to fasten with the hook portion; when the movable portion is pulled in the opposite direction, the movable portion rotates in the opposite direction along the rotating shaft, causing the locking portion to loosen from the hook portion.

[0011] Preferably, it further includes a pressure relief assembly for discharging gas from the containment space;

[0012] The pressure relief assembly includes a first telescopic member, a connecting seat, and a movable plate. The first telescopic member and the connecting seat are both disposed on the suction cup seat. The connecting seat is located on one side of the first telescopic member and has multiple first pressure relief ports that communicate with the accommodating space. The movable plate has multiple second pressure relief ports and is movably inserted into the connecting seat. The output end of the first telescopic member is connected to the movable plate, such that when the first telescopic member drives the movable plate to move along the connecting seat, the second pressure relief ports communicate with the first pressure relief ports to discharge the gas in the accommodating space.

[0013] Preferably, it further includes an X-axis moving component for moving the suction cup base along the X-axis and a Z-axis moving component for moving the suction cup base up and down. The X-axis moving component is mounted on an external device, and the Z-axis moving component is disposed on the X-axis moving component.

[0014] Preferably, the Z-axis moving assembly includes a mounting plate and a second telescopic member. The mounting plate is disposed on the X-axis moving assembly, the second telescopic member is disposed at the lower end of the mounting plate, and the output end of the second telescopic member is connected to the suction cup seat.

[0015] Preferably, the X-axis moving assembly includes a first bracket, a second bracket, a driving component, a drive gear, a transmission chain, a guide rail, a slider, and a linkage shaft. The first bracket and the second bracket are spaced apart on the external device, and the first bracket and the second bracket are connected to each other through multiple connecting rods.

[0016] The driving component is mounted on the first bracket, and its output end is connected to the drive gear. The drive gear is connected to the first transmission gear on the first bracket via a transmission chain. The drive gear is connected to the second transmission gear on the second bracket via a linkage shaft. The second transmission gear is connected to the third transmission gear on the second bracket via another transmission chain. The first transmission gear is connected to the third transmission gear via another linkage shaft. The two sides of the Z-axis moving component are respectively connected to the two transmission chains.

[0017] The inner sides of the first bracket and the second bracket are provided with two sets of parallel guide rails, and each set of guide rails has a slider. The ends of the Z-axis moving component on both sides are respectively connected to the two sliders.

[0018] Preferably, both the first telescopic component and the second telescopic component are cylinders.

[0019] In addition, this utility model also proposes a demolding device, which includes a suction cup structure with a quick-switching sealing plate as described in any of the above claims.

[0020] This utility model discloses a suction cup structure and demolding device with a quickly switchable sealing plate, which has the following beneficial effects: This solution adds a sealing plate to the cover plate. The sealing plate inside the cover plate can block the suction nozzle in areas without material, ensuring that the material matches the suction area of ​​the suction cup. This stabilizes the air pressure within the containment space, resulting in better material adsorption. In actual production, multiple sealing plates with different sealing areas can be prepared in advance. Since the suction cup base and cover plate are detachably connected, when a sealing plate needs to be replaced, simply remove the cover plate from the suction cup base and replace the internal sealing plate. This provides a wider range of applications and can accommodate the adsorption of more different types of materials. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the suction cup structure of the quick-switching sealing plate of this utility model;

[0023] Figure 2 This is a schematic diagram of the suction cup structure of the present invention, which allows for quick switching of the sealing plate, from another angle.

[0024] Figure 3This is a partial structural diagram of the suction cup structure of the quick-switching sealing plate of this utility model;

[0025] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle;

[0026] Figure 5 This is an exploded view of part of the suction cup structure of the quick-switching sealing plate of this utility model;

[0027] Figure 6 This is a schematic diagram of the sealing plate in the suction cup structure of the quick-switching sealing plate of this utility model;

[0028] Figure 7 This is a schematic diagram of another embodiment of the sealing plate in the suction cup structure of the quick-switching sealing plate of this utility model;

[0029] Figure 8 This is a schematic diagram of the movable plate and connecting seat in the suction cup structure of the quick-switching sealing plate of this utility model.

[0030] In the attached diagram: 1-Suction cup base, 11-Pipe, 2-Suction device, 3-Cover plate, 31-Suction hole, 32-Suction nozzle, 4-Sealing plate, 41-Ventilation port, 42-Sealing area, 5-Snap-fit ​​assembly, 51-Hook part, 52-Lock part, 53-Moving part, 54-Mounting base, 55-Connecting rod, 56-Rotating shaft, 6-Pressure relief assembly, 61-First telescopic component, 62-Connecting base, 621-First pressure relief port, 63- Movable plate, 631-Second pressure relief port, 7-X-axis moving assembly, 71-First bracket, 711-First transmission gear, 72-Second bracket, 721-Second transmission gear, 722-Third transmission gear, 73-Drive component, 74-Drive gear, 75-Transmission chain, 76-Guide rail, 77-Slider, 78-Linkage shaft, 79-Connecting rod, 8-Z-axis moving assembly, 81-Mounting plate, 82-Second telescopic component.

[0031] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] It should be noted that if the embodiments of this utility model involve directional indication, the directional indication is only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0034] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0035] like Figures 1 to 8 As shown, a suction cup structure capable of quickly switching sealing plates includes:

[0036] A suction cup base 1 is connected to a suction device 2 via a pipe 11, and the suction cup base 1 has a downward-facing opening;

[0037] A cover plate 3 is detachably disposed below the suction cup seat 1 to seal the opening. The cover plate 3 is provided with a plurality of arrayed suction holes 31. A suction nozzle 32 is installed in the suction hole 31. The suction cup seat 1 and the cover plate 3 together form a receiving space. The receiving space is connected to the air passage of the pipe 11 and the suction nozzle 32 respectively.

[0038] Multiple sealing plates 4, any one of the sealing plates 4 is installed inside the cover plate 3, the sealing plate 4 is used to block the air passage of the suction nozzle 32 in the area without material.

[0039] The suction cup structure with a quick-change sealing plate in this solution is particularly suitable for gripping and handling bread-like materials. Of course, it can also be applied to the adsorption and movement of other materials.

[0040] Specifically, the suction cup structure mainly includes a suction cup base 1, a cover plate 3, and a suction device 2. In actual production, the suction device 2 can be a vacuum pump or blower, etc. Air is drawn out by the suction device 2 to create a vacuum environment, generating strong suction to firmly adsorb the material. The cover plate 3 has multiple suction nozzles 32, each of which can firmly adsorb the material, facilitating subsequent demolding. Because this design adds a sealing plate 4 to the cover plate 3, the sealing plate 4 inside the cover plate 3 can block the suction nozzles 32 in areas without material, ensuring that the material matches the adsorption area of ​​the suction cup, stabilizing the air pressure within the containment space, and better adsorbing the material. In actual production, multiple sealing plates 4 in different positions and sealing areas 42 are prepared in advance. Since the suction cup base 1 and the cover plate 3 are detachably connected, when it is necessary to replace the sealing plate 4, the cover plate 3 is removed from the suction cup base 1 and the internal sealing plate 4 is replaced. This design has a wider range of applications and can accommodate the adsorption of more different types of materials.

[0041] Furthermore, the sealing plate 4 is provided with a plurality of spaced air vents 41, which are used to communicate with the air passage of the suction nozzle 32. The area on the sealing plate 4 without the air vents 41 is the sealing area 42, which is used to block the air passage of the suction nozzle 32 in the area without material.

[0042] like Figures 6 to 7 As shown, in this embodiment, the sealing plate 4 has an air vent 41 in the area where there is material. For example, the air vent 41 can be set to match the overall size of the bread mold. The air vent 41 is connected to the receiving space through the air passage of the suction nozzle 32, so that the suction nozzle 32 at the air vent 41 can tightly adsorb the material. Each air vent 41 is set at intervals. The area without material forms a sealing area 42 because no air vent 41 is opened. All the suction nozzles 32 in the sealing area 42 are blocked by the sealing plate 4 at the same time, so there will be no air leakage.

[0043] Furthermore, the vent 41 is polygonal, circular, or elliptical in shape. The vent 41 is preferably rectangular or circular, and its size can be adjusted to suit the specifications of the material.

[0044] Furthermore, the suction cup base 1 and the cover plate 3 are interconnected by multiple fastening components 5;

[0045] like Figure 4As shown, the fastening assembly 5 includes a hook portion 51, a locking portion 52, a movable portion 53, a mounting base 54, a connecting rod 55, and a rotating shaft 56. The mounting base 54 is disposed on the outer side wall of the bottom end of the suction cup seat 1. The hook portion 51 is disposed on the outer side wall of the cover plate 3. The movable portion 53 is hinged to the mounting base 54 via the rotating shaft 56. The locking portion 52 is connected to the movable portion 53 via the connecting rod 55, such that: when the movable portion 53 is pulled, the movable portion 53 rotates along the rotating shaft 56, causing the locking portion 52 to fasten with the hook portion 51; when the movable portion 53 is pulled in the opposite direction, the movable portion 53 rotates in the opposite direction along the rotating shaft 56, causing the locking portion 52 to loosen from the hook portion 51.

[0046] Multiple fastening components 5 can be provided on both sides of the suction cup base 1, which are used to lock or unlock the suction cup base 1 and the cover plate 3. Specifically, when the handle of the movable part 53 is manually pulled downward, the movable part 53 rotates along the rotating shaft 56, causing the locking part 52 to move downward a certain distance and disengage from the hook of the hook part 51, thus separating the suction cup base 1 and the cover plate 3 to replace the internal sealing plate 4. When the handle of the movable part 53 is manually pulled upward, the movable part 53 rotates along the rotating shaft 56, causing the locking part 52 to move upward a certain distance, and the locking part 52 engages with the hook of the hook part 51, thus locking the suction cup base 1 and the cover plate 3 together and isolating the receiving space from the outside.

[0047] In other embodiments, the fastening component 5 may also be other conventional fasteners.

[0048] Furthermore, such as Figure 3 and Figure 8 As shown, it also includes a pressure relief assembly 6 for discharging gas from the containment space;

[0049] The pressure relief assembly 6 includes a first telescopic member 61, a connecting seat 62, and a movable plate 63. The first telescopic member 61 and the connecting seat 62 are both disposed on the suction cup seat 1. The connecting seat 62 is located on one side of the first telescopic member 61 and has a plurality of first pressure relief ports 621, which communicate with the accommodating space. The movable plate 63 has a plurality of second pressure relief ports 631 and is movably inserted into the connecting seat 62. The output end of the first telescopic member 61 is connected to the movable plate 63, such that when the first telescopic member 61 drives the movable plate 63 to move along the connecting seat 62, the second pressure relief ports 631 communicate with the first pressure relief ports 621 to discharge the gas in the accommodating space.

[0050] In this embodiment, the overall structure of the pressure relief component 6 is relatively simple. The pressure relief of the suction cup structure is achieved by the first telescopic member 61 driving the movable plate 63 to move back and forth.

[0051] Furthermore, it also includes an X-axis moving component 7 for driving the suction cup base 1 to move along the X-axis and a Z-axis moving component 8 for driving the suction cup base 1 to move up and down. The X-axis moving component 7 is mounted on an external device, and the Z-axis moving component 8 is disposed on the X-axis moving component 7.

[0052] To expand the range of materials that the suction cup structure can adsorb, this embodiment includes an X-axis moving component 7 and a Z-axis moving component 8 to move the suction cup base 1 / nozzle 32. The X-axis moving component 7 can drive the suction cup base 1 / nozzle 32 to move freely along the X-axis, while the Z-axis moving component 8 can drive the suction cup base 1 / nozzle 32 to rise and fall freely, thus completing the gripping and movement of materials.

[0053] Furthermore, the Z-axis moving assembly 8 includes a mounting plate 81 and a second telescopic member 82. The mounting plate 81 is disposed on the X-axis moving assembly 7, and the second telescopic member 82 is disposed at the lower end of the mounting plate 81, with the output end of the second telescopic member 82 connected to the suction cup base 1. In this embodiment, the free lifting and lowering of the suction cup base 1 / nozzle 32 is driven by the extension and retraction of the second telescopic member 82.

[0054] Furthermore, the X-axis moving assembly 7 includes a first bracket 71, a second bracket 72, a driving component 73, a drive gear 74, a transmission chain 75, a guide rail 76, a slider 77, and a linkage shaft 78. The first bracket 71 and the second bracket 72 are spaced apart on the external device, and the first bracket 71 and the second bracket 72 are interconnected by multiple connecting rods 79.

[0055] The driving component 73 is mounted on the first bracket 71. The output end of the driving component 73 is connected to the driving gear 74. The driving gear 74 is connected to the first transmission gear 711 on the first bracket 71 via a transmission chain 75. The driving gear 74 is connected to the second transmission gear 721 on the second bracket 72 via a linkage shaft 78. The second transmission gear 721 is connected to the third transmission gear 722 on the second bracket 72 via another transmission chain 75. The first transmission gear 711 and the third transmission gear 722 are connected via another linkage shaft 78. The two sides of the Z-axis moving component 8 are respectively connected to the two transmission chains 75.

[0056] The inner sides of the first bracket 71 and the second bracket 72 are provided with two sets of parallel guide rails 76, and each set of guide rails 76 has a slider 77. The ends of the Z-axis moving assembly 8 on both sides are respectively connected to the two sliders 77.

[0057] In this embodiment, the movement of the X-axis moving component 7 is achieved by the driving component 73 (motor). The driving component 73 can drive the drive gear 74 to rotate. Since the drive gear 74 is connected to the first transmission gear 711 and the second transmission gear 721 respectively, and the first transmission gear 711 and the third transmission gear 722 are also connected through the linkage shaft 78, the movement of all drive gears 74 and transmission gears is synchronized, and the movement of the two transmission chains 75 is also synchronized. Since the two sides of the Z-axis moving component 8, i.e. the mounting plate 81, are connected to the two transmission chains 75 respectively, the mounting plate 81 can move continuously along the X-axis following the rotation of the transmission chains 75. At the same time, the mounting plate 81 is precisely guided by the sliders 77 and guide rails 76 on both sides during the movement.

[0058] Furthermore, both the first telescopic component 61 and the second telescopic component 82 are cylinders. Using cylinders as the power source to move the movable plate 63 or the suction cup base 1 results in a simple structure, low cost, and ease of installation and maintenance. It also features smooth movement and fast response, enabling precise control of the movement distance of the movable plate 63 or the suction cup base 1. Specifically, the first telescopic component 61 is a miniature cylinder, while the second telescopic component 82 is a larger-sized cylinder.

[0059] In particular, this utility model also proposes a demolding device that uses a suction cup structure with a quickly switchable sealing plate as described in any of the above claims. This demolding device includes any of the aforementioned suction cup structures with a quickly switchable sealing plate, and therefore has the same beneficial effects as the aforementioned suction cup structures with quickly switchable sealing plates, which will not be elaborated upon here.

[0060] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A suction cup structure with a quick-switching sealing plate, characterized in that, include: A suction cup seat (1) is connected to a suction device (2) via a pipe (11), and the suction cup seat (1) has a downward opening; A cover plate (3) is detachably disposed below the suction cup seat (1) to seal the opening. The cover plate (3) is provided with a plurality of arrayed suction holes (31). A suction nozzle (32) is installed in the suction hole (31). The suction cup seat (1) and the cover plate (3) together form a receiving space. The receiving space is connected to the air passage of the pipe (11) and the suction nozzle (32) respectively. Multiple sealing plates (4), any one of the sealing plates (4) is installed inside the cover plate (3), the sealing plate (4) is used to block the air passage of the nozzle (32) in the area without material.

2. The suction cup structure with a quickly switchable sealing plate according to claim 1, characterized in that, The sealing plate (4) is provided with a plurality of spaced air vents (41), which are used to communicate with the air passage of the nozzle (32). The area on the sealing plate (4) without the air vents (41) is the sealing area (42), which is used to block the air passage of the nozzle (32) in the area without material.

3. The suction cup structure with a quickly switchable sealing plate according to claim 2, characterized in that, The shape of the vent (41) is polygonal, circular or elliptical.

4. The suction cup structure with a quickly switchable sealing plate according to claim 1, characterized in that, The suction cup base (1) and the cover plate (3) are connected to each other by multiple fastening components (5); The fastening assembly (5) includes a hook part (51), a locking part (52), a movable part (53), a mounting base (54), a connecting rod (55), and a rotating shaft (56). The mounting base (54) is disposed on the outer side wall of the bottom end of the suction cup seat (1). The hook part (51) is disposed on the outer side wall of the cover plate (3). The movable part (53) is hinged to the mounting base (54) through the rotating shaft (56). The locking part (52) is connected to the movable part (53) through the connecting rod (55), such that: when the movable part (53) is pulled, the movable part (53) rotates along the rotating shaft (56), causing the locking part (52) to fasten with the hook part (51); when the movable part (53) is pulled in the opposite direction, the movable part (53) rotates in the opposite direction along the rotating shaft (56), causing the locking part (52) to loosen from the hook part (51).

5. The suction cup structure for quickly switching sealing plates according to claim 1, characterized in that, It also includes a pressure relief assembly (6) for discharging gas from the containment space; The pressure relief assembly (6) includes a first telescopic member (61), a connecting seat (62), and a movable plate (63). The first telescopic member (61) and the connecting seat (62) are both disposed on the suction cup seat (1). The connecting seat (62) is located on one side of the first telescopic member (61). The connecting seat (62) is provided with a plurality of first pressure relief ports (621). The first pressure relief ports (621) are connected to the accommodating space. The movable plate (63) is provided with a plurality of second pressure relief ports (631). The movable plate (63) is movably inserted into the connecting seat (62). The output end of the first telescopic member (61) is connected to the movable plate (63), such that when the first telescopic member (61) drives the movable plate (63) to move along the connecting seat (62), the second pressure relief ports (631) are connected to the first pressure relief ports (621) to discharge the gas in the accommodating space.

6. The suction cup structure for quickly switching sealing plates according to claim 5, characterized in that, It also includes an X-axis moving assembly (7) for moving the suction cup base (1) along the X-axis and a Z-axis moving assembly (8) for moving the suction cup base (1) up and down. The X-axis moving assembly (7) is mounted on an external device and the Z-axis moving assembly (8) is mounted on the X-axis moving assembly (7).

7. The suction cup structure for quickly switching sealing plates according to claim 6, characterized in that, The Z-axis moving assembly (8) includes a mounting plate (81) and a second telescopic member (82). The mounting plate (81) is disposed on the X-axis moving assembly (7), and the second telescopic member (82) is disposed at the lower end of the mounting plate (81). The output end of the second telescopic member (82) is connected to the suction cup seat (1).

8. The suction cup structure for quickly switching sealing plates according to claim 6, characterized in that, The X-axis moving assembly (7) includes a first bracket (71), a second bracket (72), a driving component (73), a drive gear (74), a transmission chain (75), a guide rail (76), a slider (77), and a linkage shaft (78). The first bracket (71) and the second bracket (72) are spaced apart on the external device, and the first bracket (71) and the second bracket (72) are connected to each other by multiple connecting rods (79). The drive unit (73) is mounted on the first bracket (71). The output end of the drive unit (73) is connected to the drive gear (74). The drive gear (74) is connected to the first transmission gear (711) on the first bracket (71) via a transmission chain (75). The drive gear (74) is connected to the second transmission gear (721) on the second bracket (72) via a linkage shaft (78). The second transmission gear (721) is connected to the third transmission gear (722) on the second bracket (72) via another transmission chain (75). The first transmission gear (711) and the third transmission gear (722) are connected via another linkage shaft (78). The two sides of the Z-axis moving assembly (8) are connected to the two transmission chains (75) respectively. The inner sides of the first bracket (71) and the second bracket (72) are provided with two sets of parallel guide rails (76), and the sliders (77) are on both sets of guide rails (76). The ends of the Z-axis moving assembly (8) on both sides are respectively connected to the two sliders (77).

9. The suction cup structure for quickly switching sealing plates according to claim 7, characterized in that, Both the first telescopic component (61) and the second telescopic component (82) are cylinders.

10. A demolding device, characterized in that, The suction cup structure includes the quick-switchable sealing plate as described in any one of claims 1-9.

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