Punching device for aerator membrane

Abstract

The utility model relates to the technical field of aerator diaphragm preparation, in particular to a hole pricking device for an aerator diaphragm, which comprises a first part and a second part which are oppositely arranged, the first part comprises a plurality of needle knives which are arranged towards the second part, and the needle knives are arranged on the first part. The second part is movably connected with the first part in the direction close to or away from the first part, the second part comprises a rubber plate arranged towards the needle knife, and the length of the needle knife is larger than the thickness of the membrane. Due to the fact that the rubber plate is arranged on the side, away from the needle knives, of the membrane, the rubber plate can abut against the surface of the membrane, the situation that the outer surface of the membrane located at the knife point is pulled outwards to form a convex tip is avoided, all the needle knives can pierce the membrane to conduct effective hole pricking, and the qualified rate of hole pricking of products is increased. Meanwhile, the rubber plate does not damage the knife point, the tip of the needle knife can be protected, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of aerator diaphragm preparation, and more specifically, to a puncturing device for an aerator diaphragm. Background Art

[0002] Aerators are devices used to introduce air into water bodies and are widely used in fields such as sewage treatment and aquaculture. Aerators typically feature a diaphragm with thousands of micropores. Air enters the water through these pores, forming numerous tiny bubbles. This increases the contact area between the water and the air, improving oxygen diffusion efficiency and providing ample oxygen for aquatic organisms.

[0003] Aerator diaphragms are typically hot-pressed from a flat rubber plate, and the micropores in the diaphragm are formed by piercing with a knife. However, due to the tear resistance of the rubber surface, when the knife tip penetrates the diaphragm and is about to penetrate, the outer surface of the diaphragm at the knife tip will be pulled outward, forming a convex point. This may cause some of the micropores in the diaphragm to appear as blind holes, affecting the product's qualification rate. Utility Model Content

[0004] The utility model aims to overcome the problem that blind holes are easily formed when punching holes in aerator membranes in the prior art, and provides a punching device for aerator membranes, which can effectively improve the qualified rate of membrane punching production.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a puncturing device for an aerator diaphragm, comprising a first component and a second component arranged relatively to each other, the first component comprising a plurality of needle knives arranged toward the second component, the second component being movably connected to the first component in a direction approaching or moving away from the first component, the second component comprising a rubber plate arranged toward the needle knives, and the length of the needle knives being greater than the thickness of the diaphragm.

[0006] In the technical solution of the present utility model, the diaphragm to be punctured is sleeved on the side of the first component where the needle knife is provided, and then the second component is brought close to the first component, and the diaphragm is pressed against the needle knife by squeezing the rubber plate. The length of the needle knife is greater than the thickness of the diaphragm, so after the needle knife pierces the diaphragm, it will continue to pierce the rubber plate, thereby using the needle knife to puncture the diaphragm. Since a rubber plate is provided on the side of the diaphragm away from the needle knife, the rubber plate can support the surface of the mold, preventing the outer surface of the diaphragm at the tip of the knife from being pulled outward to form a convex tip, so that each needle knife can pierce the diaphragm to effectively puncture holes, thereby improving the qualified rate of product punctures. At the same time, the rubber plate itself will not cause damage to the tip of the knife, and can protect the tip of the needle knife and increase the life of the device.

[0007] Furthermore, the length of the needle knife is greater than the thickness of the membrane by 0.5 mm to 0.7 mm.

[0008] In this solution, by setting a reasonable needle knife length, the needle knife can be easily pierced through the membrane and can also be protected from being easily broken.

[0009] Furthermore, the Shore hardness of the rubber plate is 10 to 20 degrees higher than the Shore hardness of the diaphragm.

[0010] In this solution, by setting a reasonable hardness of the rubber plate, the rubber plate can play a role in preventing the membrane from being pulled. At the same time, the knife tip can easily enter the rubber plate after penetrating the membrane without causing damage to the knife tip, thereby increasing the life of the device.

[0011] Furthermore, the first component is connected to a guide post, the second component is connected to a guide sleeve, and the guide post and the guide sleeve are plugged in along the relative movement direction of the first component and the second component.

[0012] In this solution, the guide pillar and the guide sleeve can guide and limit the first component and the second component.

[0013] Furthermore, the first component is also connected to a limiting rod for abutting against the second component.

[0014] In this solution, the minimum distance between the first component and the second component can be limited by the limiting rod, thereby protecting the acupuncture knife.

[0015] Furthermore, the first component further includes a bottom plate, a first pad and a needle plate stacked in sequence from bottom to top, and each of the needle knives is vertically arranged on the needle plate.

[0016] In this solution, the bottom plate, the first pad and the needle plate are stacked and connected in sequence, so that the needle knife can be disassembled and replaced separately.

[0017] Furthermore, the needle plate is a polygonal structure, with a circular tool installation area in the middle of the needle plate, and the side of the needle plate has an extended support ear portion, and the needle knives are evenly distributed in the tool installation area.

[0018] In this solution, the ear portions can play a positioning role when the diaphragm is sleeved, and the space between adjacent ear portions can facilitate the removal of the diaphragm.

[0019] Furthermore, the second component further includes a top plate and a second pad, the top surface of the second pad is fixedly connected to the bottom surface of the top plate, and the bottom surface of the second pad is fixedly connected to the top surface of the rubber plate.

[0020] In this solution, the top plate, the second pad and the rubber plate are connected in sequence, so that the rubber plate can be disassembled and replaced separately.

[0021] Furthermore, the second component is connected to a linear drive mechanism to drive the second component to move toward or away from the first component.

[0022] In this solution, the second component is driven by connecting to an external linear drive mechanism so as to move relative to the first component.

[0023] Furthermore, the rubber plate is made of rubber or elastomeric material.

[0024] In this solution, the rubber material or the urethane material can protect the tip of the knife from being damaged.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] First, the puncturing device for aerator membranes of this utility model features a rubber plate positioned on the side of the membrane away from the needle blades. This plate supports the surface of the membrane, preventing the outer surface of the membrane at the blade tips from being pulled outward to form convex points. This allows each needle blade to effectively pierce the membrane, thereby improving the product's puncture pass rate. Furthermore, the rubber plate itself does not damage the blade tips, protecting the needle blade tips and extending the life of the device.

[0027] Second, by setting a reasonable needle blade length, the present invention not only facilitates the needle blade's penetration of the membrane but also protects it from breaking. By setting a reasonable rubber plate hardness, the rubber plate acts as a barrier to the membrane's pull. Furthermore, after penetrating the membrane, the blade tip easily enters the rubber plate without causing damage, thereby extending the life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the overall structure of the piercing device for the aerator membrane of the utility model;

[0029] Figure 2 yes Figure 1 An exploded view showing the separation of the first component and the second component;

[0030] Figure 3 yes Figure 1 AA section view;

[0031] Figure 4 is a schematic structural diagram of the first component from a top view;

[0032] Figure 5 It is a schematic diagram of the needle knife piercing into the membrane and the rubber plate;

[0033] Figure 6 It is a schematic diagram of the structure of the diaphragm;

[0034] Figure 7 yes Figure 6 sectional view of .

[0035] In the accompanying drawings: 100, diaphragm; 1, first component; 11, needle knife; 12, needle plate; 121, tool installation area; 122, ear portion; 13, first pad; 14, bottom plate; 2, second component; 21, rubber plate; 22, top plate; 23, second pad; 3, guide column; 4, guide sleeve; 5, limit rod. DETAILED DESCRIPTION

[0036] The drawings are for illustrative purposes only and should not be construed as limiting this patent. To better illustrate the embodiments, some components in the drawings may be omitted, enlarged, or reduced in size, and do not represent actual product dimensions. Those skilled in the art will understand that some well-known structures and their descriptions may be omitted from the drawings. The positional relationships depicted in the drawings are for illustrative purposes only and should not be construed as limiting this patent.

[0037] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0038] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0039] Example 1

[0040] refer to Figures 1 to 7 This embodiment discloses a puncturing device for an aerator membrane, comprising a first component 1 and a second component 2 arranged relatively to each other, the first component 1 comprising a plurality of needle knives 11 arranged toward the second component 2, the second component 2 being movably connected to the first component 1 in a direction approaching or moving away from the first component 1, the second component 2 comprising a rubber plate 21 arranged toward the needle knives 11, the length of the needle knives 11 being greater than the thickness of the membrane 100.

[0041] When using the puncturing device of this embodiment, the diaphragm 100 to be punctured is first placed on the side of the first component 1 where the needle knife 11 is provided, and then the second component 2 is brought close to the first component 1, and the diaphragm 100 is pressed against the needle knife 11 by squeezing the rubber plate 21. The length of the needle knife 11 is greater than the thickness of the diaphragm 100, so after the needle knife 11 pierces the diaphragm 100, it will continue to pierce the rubber plate 21, thereby using the needle knife 11 to puncture the diaphragm 100. Since the rubber plate 21 is provided on the side of the diaphragm 100 away from the needle knife 11, the rubber plate 21 can support the surface of the mold, preventing the outer surface of the diaphragm 100 at the knife tip from being pulled outward to form a convex tip, so that each needle knife 11 can pierce the diaphragm 100 to effectively puncture the hole, thereby improving the qualified rate of the product puncture. At the same time, the rubber plate 21 itself will not cause damage to the knife tip, and can protect the tip of the needle knife 11 and increase the life of the device.

[0042] The movable connection between the first component 1 and the second component 2 may be achieved by directly connecting the first component 1 and the second component 2 via a sliding mechanism, or by connecting the first component 1 and the second component 2 respectively via other external devices so that the first component 1 and the second component 2 can move relative to each other.

[0043] For example, in some embodiments, the first component 1 can be fixed on the working plane of the punch press, and the second component 2 can be fixed on the moving end of the punch press. The punch press can drive the second component 2 to reciprocate, so that the first component 1 and the second component 2 can be movably connected to each other to move closer or farther away.

[0044] The side of the first component 1 facing the second component 2 is a first working surface, to which multiple needle knives 11 are fixedly connected. The number of needle knives 11 is determined by the number of micropores in the diaphragm 100, and for example, thousands of needle knives 11 are provided. The side of the second component 2 facing the first component 1 is a second working surface, to which a rubber sheet 21 is fixedly connected. Specifically, the first working surface and the second working surface are arranged in parallel, and the rubber sheet 21 is also parallel to the plane where the tips of the needle knives 11 are located, so that the rubber sheet 21 can be evenly squeezed onto the diaphragm 100.

[0045] In this embodiment, the length of the needle knife 11 is greater than the thickness of the diaphragm 100 by 0.5mm to 0.7mm, which ensures the puncture rate while also ensuring the structural strength of the needle knife 11. The inventors have found through research that the outer surface of the diaphragm 100 at the tip of the knife will be pulled outward to form a convex tip, which may cause some of the micropores in the diaphragm 100 to appear as blind holes, affecting the product's pass rate. Although increasing the length of the needle knife 11 can reduce the occurrence of blind holes and improve the puncture rate to a certain extent. However, if the length of the needle knife 11 is too long, the needle knife 11 will be prone to breakage during the puncture process, reducing the life of the device. Therefore, it is preferred that the length of the needle knife 11 is greater than the thickness of the diaphragm 100 by 0.5mm to 0.7mm.

[0046] It is understood that the length of the needle knife 11 refers to the length of the portion of the needle knife 11 that can be used to penetrate the membrane 100, and does not include the length of the connection portion. When the needle knife 11 penetrates the membrane 100, the tip of the knife can exceed the thickness of the membrane 100 by 0.5 mm to 0.7 mm, for example, 0.5 mm, 0.6 mm, 0.7 mm, or other values ​​within the range.

[0047] In this embodiment, the Shore hardness of rubber sheet 21 is 10 to 20 degrees higher than that of diaphragm 100, enabling rubber sheet 21 to resist pulling of diaphragm 100. Furthermore, after penetrating diaphragm 100, the tip of the knife can easily enter rubber sheet 21 without damaging the tip, thereby improving the lifespan of the device. For example, the Shore hardness of rubber sheet 21 can be 10, 15, 20, or any other value within this range higher than that of diaphragm 100.

[0048] Example 2

[0049] refer to Figures 1 to 7 This embodiment is similar to embodiment 1 and discloses a puncturing device for an aerator membrane, including a first component 1 and a second component 2 arranged relatively to each other, the first component 1 including a plurality of needle knives 11 arranged toward the second component 2, the second component 2 being movably connected to the first component 1 in a direction approaching or moving away from the first component 1, the second component 2 including a rubber plate 21 arranged toward the needle knives 11, and the length of the needle knives 11 being greater than the thickness of the membrane 100.

[0050] The difference between this embodiment and embodiment 1 is that Figures 1 to 3 The first component 1 is connected to a guide column 3, and the second component 2 is connected to a guide sleeve 4. The guide column 3 and the guide sleeve 4 are plugged in along the relative movement direction of the first component 1 and the second component 2.

[0051] refer to Figures 1 to 3Specifically, the side of the first component 1 facing the second component 2 is the first working surface, and guide posts 3 are connected to both side regions of the first working surface. The guide posts 3 can be arranged perpendicular to the first working surface and facing the second component 2. The side of the second component 2 facing the first component 1 is the second working surface, and guide sleeves 4 are arranged on both side regions of the second working surface at positions corresponding to the guide posts 3. The guide sleeves 4 can be arranged perpendicular to the second working surface and facing the first part.

[0052] refer to Figure 3 The first and second working surfaces are arranged in parallel, the guide post 3 and the guide sleeve 4 are arranged in parallel, and the guide sleeve 4 has a guide groove axially formed inside for accommodating the guide post 3. When the second component 2 moves relative to the first component 1, the guide post 3 can move in the guide groove. The limiting relationship between the guide post 3 and the guide groove can prevent the first component 1 and the second component 2 from being misaligned in the horizontal direction, and prevent the needle knife 11 from being broken due to tilting or misalignment between the first component 1 and the second component 2.

[0053] In other embodiments, a guide sleeve 4 may be provided on the first component 1 and a guide post 3 may be provided on the second component 2, so that the guide post 3 and the guide sleeve 4 cooperate to achieve a limiting function.

[0054] refer to Figure 1 and Figure 2 In this embodiment, the first component 1 is preferably further connected to a stopper rod 5 for contact with the second component 2. The length of the stopper rod 5 can be configured as needed, so that when the second component 2 moves toward the first component 1, it cannot move further after reaching a predetermined position, thereby protecting the blade tip. More specifically, the length of the stopper rod 5 is configured to achieve the minimum distance between the first component 1 and the second component 2 at corresponding positions during operation.

[0055] In some other embodiments, the limiting rod 5 may also be provided on the second component 2 for abutting against the first component 1 .

[0056] In this embodiment, the second component 2 is connected to an external linear drive mechanism. The external linear drive mechanism is used to drive the second component 2 toward or away from the first component 1. For example, the external linear drive mechanism can be a pneumatic cylinder, a hydraulic cylinder, or an electric push rod, or it can be the drive end of a punch press.

[0057] Preferably, the rubber plate 21 is made of rubber or elastomeric material. When the needle knife 11 is inserted into the rubber plate 21, it can effectively protect the knife tip and avoid damage to the knife tip due to hard collision.

[0058] Example 3

[0059] refer to Figures 1 to 7This embodiment is similar to embodiment 1 and discloses a puncturing device for an aerator membrane, including a first component 1 and a second component 2 arranged relatively to each other, the first component 1 including a plurality of needle knives 11 arranged toward the second component 2, the second component 2 being movably connected to the first component 1 in a direction approaching or moving away from the first component 1, the second component 2 including a rubber plate 21 arranged toward the needle knives 11, and the length of the needle knives 11 being greater than the thickness of the membrane 100.

[0060] refer to Figures 1 to 3 , the difference between this embodiment and the embodiment is that the first component 1 also includes a base plate 14, a first pad 13 and a needle plate 12 stacked in sequence from bottom to top, one side of the first pad 13 is fixedly connected to the base plate 14, and the other end of the first pad 13 is fixedly connected to the needle plate 12, and each needle knife 11 is vertically arranged on the needle plate 12. The base plate 14, the first pad 13 and the needle plate 12 can be detachably connected by bolts. By disassembling and replacing the needle plate 12, the number and length parameters of the needle knives 11 can be adjusted, so that the device can produce diaphragms 100 of different specifications. Among them, the base plate 14 can be fixedly connected to an external device, and the external device can be, for example, the working plane of a punch press. The first pad 13 is used for an intermediate transition connection, and the needle plate 12 is used for fixed connection of the needle knives 11.

[0061] refer to Figure 4 In this embodiment, the needle plate 12 preferably has a polygonal structure, with a circular blade mounting area 121 in the center. Extending lugs 122 are provided on the sides of the needle plate 12, and the needle knives 11 are evenly distributed within the blade mounting area 121. For example, the needle plate 12 may have a symmetrical polygonal structure, with the central circular area of ​​the needle plate 12 being used to mount the needle knives 11. Eight lugs 122 are evenly distributed around the perimeter of the needle plate 12 for positioning.

[0062] refer to Figure 3 、 Figure 6 and Figure 7 Diaphragm 100 assumes a roughly circular cap-like configuration. When diaphragm 100 is attached to needle plate 12 in a cap-like manner, a gripping space is created between the portion between two adjacent ears 122 and diaphragm 100. While ears 122 provide positioning when attached, the space between adjacent ears 122 facilitates removal of the finished diaphragm 100. The number of ears 122 can be four, six, or eight, preferably evenly distributed.

[0063] refer to Figures 1 to 3In this embodiment, the second component 2 further includes a top plate 22 and a second pad 23. One side of the second pad 23 is fixedly connected to the top plate 22, and the other side of the second pad 23 is fixedly connected to the rubber plate 21. The top plate 22, the second pad 23, and the rubber plate 21 can also be detachably connected by bolts to facilitate replacement of the rubber plate 21, so that the rubber plate 21 can maintain its protective effect on the needle knife 11. The top plate 22 is used to be fixed to an external linear drive mechanism, which can be the moving end of a punch press. The second pad 23 is used for an intermediate transition connection, and the rubber plate 21 is fixed to the second pad 23.

[0064] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. A person skilled in the art will be able to make other variations or modifications based on the above description. It is not necessary and impossible to enumerate all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A puncturing device for an aerator membrane, characterized in that: The invention comprises a first component (1) and a second component (2) arranged relative to each other, wherein the first component (1) comprises a plurality of needle knives (11) arranged toward the second component (2), the second component (2) is movably connected to the first component (1) in a direction approaching or moving away from the first component (1), the second component (2) comprises a rubber plate (21) arranged toward the needle knives (11), and the length of the needle knives (11) is greater than the thickness of the membrane (100).

2. The piercing device for aerator membrane according to claim 1, characterized in that: The length of the needle knife (11) is greater than the thickness of the membrane (100) by 0.5 mm to 0.7 mm.

3. The piercing device for aerator membrane according to claim 1, characterized in that: The Shore hardness of the rubber plate (21) is 10 to 20 degrees higher than the Shore hardness of the diaphragm (100).

4. The piercing device for an aerator membrane according to any one of claims 1 to 3, characterized in that: The first component (1) is connected to a guide column (3), the second component (2) is connected to a guide sleeve (4), and the guide column (3) and the guide sleeve (4) are plugged in along the relative movement direction of the first component (1) and the second component (2).

5. The piercing device for aerator membrane according to claim 4, characterized in that: The first component (1) is also connected to a limiting rod (5) for abutting against the second component (2).

6. The piercing device for aerator membrane according to claim 1, characterized in that: The first component (1) further comprises a bottom plate (14), a first pad (13) and a needle plate (12) stacked in sequence from bottom to top, and each needle knife (11) is vertically arranged on the needle plate (12).

7. The piercing device for aerator membrane according to claim 6, characterized in that: The needle plate (12) is a polygonal structure, and has a circular tool installation area (121) in the middle of the needle plate (12). The side of the needle plate (12) has an extended support ear (122), and each needle knife (11) is evenly distributed in the tool installation area (121).

8. The puncturing device for aerator membrane according to claim 1, characterized in that: The second component (2) further comprises a top plate (22) and a second pad (23), wherein the top surface of the second pad (23) is fixedly connected to the bottom surface of the top plate (22), and the bottom surface of the second pad (23) is fixedly connected to the top surface of the rubber plate (21).

9. The piercing device for aerator membrane according to claim 1, characterized in that: The second component (2) is connected to a linear drive mechanism to drive the second component (2) to move toward or away from the first component (1).

10. The piercing device for aerator membrane according to claim 1, characterized in that: The rubber plate (21) is made of rubber or elastomeric material.

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