Filter membrane blanking structure

Abstract

The utility model provides a filter membrane blanking structure. The filter membrane blanking structure comprises two vertical plates which are arranged at an interval, the guide block is connected to the two vertical plates, and a through groove is formed in the guide block; the stamping die is connected to the guide block, and the stamping die and the through groove form a cavity for the filtering membrane to penetrate through; the punching hole penetrates through the guide block and the punching die in the area of the cavity; the stamping knife is arranged in the punched hole of the guide block and moves towards the cavity through the telescopic cylinder; an anti-adhesion structure is arranged on the surface of a tool bit of the stamping tool. The anti-adhesion structure is arranged on the surface of the tool bit of the stamping knife, so that the surface of the tool bit of the stamping knife is not easy to adhere, the technical effect that the blanked filter membrane is not easy to adhere to the surface of the tool bit of the stamping knife is achieved, the working efficiency of filter membrane blanked sample piece taking is improved, and the problem that the surface of the tool bit of the stamping knife is smooth and cannot be damaged is solved. The filter membrane sample piece is easy to adhere to the surface of the stamping knife head, so that the sampling work efficiency is low.

Description

Technical Field

[0001] The utility model relates to the field of filter membrane punching, in particular to a filter membrane punching structure. Background Art

[0002] The small filter for laboratory use mainly includes a filter lower cover, a filter membrane and a filter upper cover. The filter lower cover and the filter upper cover are both T-shaped cover bodies, and the filter membrane is placed between the filter lower cover and the filter upper cover. The assembly of the filter is partly done manually, which is not only inefficient but also prone to secondary pollution; partly mechanized assembly solves the problems of work efficiency and secondary pollution, but because the filter membrane is small and thin, it is very easy for the cut filter membrane to adhere to the cutter and not be transferred away, which greatly increases the unqualified rate of the assembled filter and hinders the improvement of production efficiency.

[0003] Traditional filter membrane punching equipment has serious adhesion problems in practical applications, mainly in the filter membrane punching process. Specifically, the surface of the punch head is usually smooth and the material is single, which makes the filter membrane sample easy to adhere. The material properties of the filter membrane make it more likely to adhere when it contacts the punch head surface, which significantly reduces the efficiency of material removal. This problem not only causes a decrease in work efficiency during the production process, but also may cause inaccurate sampling due to adhesion, which has a negative impact on product quality and consistency.

[0004] Secondly, traditional equipment also faces challenges during the transfer and loading process. The filter membrane is often affected by electrostatic attraction or surface tension during the transfer process, which makes the filter membrane easily adsorbed in the suction nozzle, resulting in unstable transfer and loading, and limited production efficiency. Utility Model Content

[0005] The utility model discloses a filter membrane punching structure, which is used to solve relevant technical problems in the background technology.

[0006] The technical solution provided by the utility model is as follows: a filter membrane punching structure, comprising:

[0007] Two vertical boards set at intervals;

[0008] A guide block is connected to the two vertical plates and has a through slot;

[0009] The punching die is connected to the guide block and forms a cavity with the through groove for the filter membrane to pass through;

[0010] punching a hole through the guide block and the die in the region of the cavity; and

[0011] The punching knife moves toward the cavity through the telescopic cylinder in the punching hole of the guide block; the surface of the knife head of the punching knife is provided with an anti-adhesion structure.

[0012] In one embodiment, a suction nozzle is arranged above the punch die, and the suction nozzle moves toward the cavity in the punch hole through a driving assembly.

[0013] In one embodiment, the suction end of the suction nozzle has a blocking wall, and air holes are opened on the blocking wall.

[0014] In one embodiment, the punching hole in the die is trumpet-shaped, and its diameter is larger than the outer diameter of the suction nozzle.

[0015] In one embodiment, the vertical plate is connected to a cylinder plate on a side away from the guide block, the telescopic cylinder is connected to the cylinder plate, and the telescopic end of the telescopic cylinder passes through the cylinder plate and is connected to a punching knife bracket, and the punching knife is connected to the punching knife bracket.

[0016] In one embodiment, the punching knife support is a frame-type structure, and a sliding group is connected between the vertical plates on both sides of the frame and the two vertical plates; the sliding group includes: a slide rail connected to the vertical plate, and a slider connected to the vertical plate.

[0017] In one embodiment, it also includes: a winding mechanism for winding and releasing the filter membrane; the winding mechanism includes: a loading roller on one side of the cavity, a supporting roller connected to the vertical plate and between the loading roller and the cavity, a waste roller on the other side of the cavity, and a winding motor connected to the waste roller.

[0018] In one embodiment, the anti-adhesion structure is a concave structure or a non-smooth structure opened inwardly on the surface of the punch head.

[0019] In one embodiment, the anti-sticking structure is an anti-sticking pad connected to the surface of the punch head.

[0020] In one embodiment, the anti-sticking pad is made of Teflon material.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] (1) The filter membrane punching structure of the utility model provides an anti-adhesion structure on the surface of the punch head, so that the surface of the punch head is not easy to stick, thereby achieving the technical effect that the punched filter membrane is not easy to stick to the surface of the punch head, thereby improving the work efficiency of the filter membrane punching sample collection, and further solving the technical problem of low sampling efficiency due to the smooth surface of the punch head and the filter membrane sample easily sticking to the surface of the punch head.

[0023] (2) The filter membrane punching structure of the utility model can prevent the punched filter membrane from being sucked into the suction nozzle by setting a blocking wall with air holes at the end of the suction nozzle. At the same time, the design of the air holes makes the end surface of the blocking wall relatively rough, and the filter membrane is not easy to adhere to the blocking wall, so that the filter membrane transfer and feeding is more stable, and the production efficiency of the equipment is further improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the filter membrane punching structure and workstation of the utility model from the first perspective;

[0025] Figure 2 It is a structural schematic diagram of the filter membrane punching structure and the second viewing angle of the workstation of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the filter membrane punching structure of the utility model;

[0027] Figure 4 It is a three-dimensional structural schematic diagram of part of the structure of the utility model;

[0028] Figure 5 It is a front view of a part of the structure of the utility model;

[0029] Figure 6 It is a cross-sectional view of the suction nozzle in the utility model;

[0030] Figure 7 This is a schematic structural diagram of an anti-adhesion structure in one embodiment of the utility model;

[0031] Figure 8 This is a schematic structural diagram of an anti-adhesion structure in one embodiment of the utility model;

[0032] Fig. 9 It is a cross-sectional view of the guide block and the punch die in the utility model.

[0033] The accompanying drawings are marked as follows: 1. vertical plate; 2. guide block; 21. cavity; 3. die; 4. punching; 5. punching knife; 6. suction nozzle; 61. barrier wall, 62. air hole; 7. anti-sticking structure; 71. concave structure; 72. anti-sticking pad; 8. telescopic cylinder; 9. driving assembly; 10. cylinder plate; 11. punching knife bracket; 111. vertical plate; 12. sliding group; 121. slide rail; 122. slider; 13. winding mechanism; 131. feeding roller; 132. supporting roller; 133. waste roller; 134. winding motor; 100. work station. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0035] like Figure 1-9As shown, the utility model is a filter membrane punching structure, comprising: a vertical plate 1, a guide block 2, a die 3, a punching hole 4, a punching knife 5, and a suction nozzle 6; the two vertical plates 1 are arranged at a distance, the guide block 2 is connected to the top of the two vertical plates 1 by a threaded member, and the die 3 is connected to the top of the guide block 2 by a threaded member; a through groove is provided on the top of the guide block 2, and a cavity 21 is formed between the through groove and the die 3 for the filter membrane to pass through; the punching hole 4 passes through the guide block 2 and the die 3, and is within the cross-sectional area of ​​the cavity 21, so that the punching knife 5 punches out a circular filter membrane sample from the filter membrane in the cavity 21 in the punching hole 4; and the surface of the blade head of the punching knife 5 is provided with an anti-adhesion structure 7, so that the punched filter membrane sample will not be adsorbed on the blade head surface of the punching knife 5 due to static electricity, so that the filter membrane sample can be adsorbed and transferred by the suction nozzle 6. The filter membrane passes through the cavity 21, the telescopic cylinder 8 drives the punching knife 5 to move along the punching hole 4 toward the cavity 21, the driving assembly 9 drives the suction nozzle 6 to move toward the cavity 21, and the punching knife 5 cooperates with the suction nozzle 6 to punch out the filter membrane into a filter membrane sample. Since there is an anti-adhesion structure 7 on the end face of the punching knife 5, the suction nozzle 6 can absorb the punched filter membrane sample and move it out of the punching hole 4 through the driving assembly 9 and place it at the work station 100. The filter membrane punching structure of the utility model, by providing the anti-adhesion structure 7 on the surface of the punching knife 5, makes the surface of the punching knife 5 not easy to stick, thereby achieving the technical effect that the punched filter membrane is not easy to stick to the surface of the punching knife 5, improving the working efficiency of the filter membrane punching sample taking, and then solving the technical problem of low sampling efficiency due to the smooth surface of the punching knife 5 and the easy adhesion of the filter membrane sample on the surface of the punching knife 5.

[0036] Specifically, the vertical plate 1 is connected to a cylinder plate 10 on the side away from the guide block 2, the telescopic cylinder 8 is connected to the cylinder plate 10, and the telescopic end of the telescopic cylinder 8 passes through the cylinder plate 10 and is connected to a punching knife bracket 11, and the punching knife bracket 11 is connected to the punching knife 5; the punching knife bracket 11 is a frame-type structure, and the vertical plates 111 on both sides thereof are connected to a sliding group 12 between the two vertical plates 1; the sliding group 12 includes: a slide rail 121 connected to the vertical plate 1, and a slider 122 connected to the vertical plate 111. When the telescopic cylinder 8 starts to work, its telescopic end moves the punching knife 5 through the punching knife bracket 11 to realize the punching action. The design of the sliding group 12 of this embodiment is used to support the punching knife bracket 11 so that it can move up and down stably.

[0037] Specifically, Fig. 9 As shown, the punching hole 4 in the die 3 is trumpet-shaped, and its diameter is larger than the outer diameter of the suction nozzle 6. The trumpet-shaped design can ensure that the suction nozzle 6 can move in the punching hole 4; the inner diameter of the punching hole 4 in the guide block 2 is slightly larger than the outer diameter of the punching knife 5, so that the punching knife 5 can smoothly complete the punching action.

[0038] The other end of the suction nozzle 6 of this embodiment is connected to a vacuum pump. When the vacuum pump is working, the punched filter membrane sample is sucked through the suction nozzle 6 and moved to the workstation 100 through the driving assembly 9.

[0039] Furthermore, the suction end of the suction nozzle 6 has a blocking wall 61, and an air hole 62 is opened on the blocking wall 61; when the suction nozzle 6 is working, the blocking wall 61 can prevent the punched filter membrane sample from being sucked into the suction nozzle 6, and at the same time, the setting of the air hole 62 makes the surface of the blocking wall 61 relatively rough, which can prevent the adsorption of the filter membrane sample; in this embodiment, by setting the blocking wall 61 with the air hole 62 at the end of the suction nozzle 6, not only can the punched filter membrane sample be prevented from being sucked into the suction nozzle, but also, the design of the air hole 62 makes the end surface of the blocking wall 61 relatively rough, and the filter membrane sample is not easy to adhere to the blocking wall 61, so that the transfer and feeding of the filter membrane sample is more stable, and the production efficiency of the equipment is further improved.

[0040] Specifically, Figure 3 As shown, it also includes: a winding mechanism 13 for winding and releasing the filter membrane; the winding mechanism 13 includes: a feeding roller 131, a supporting roller 132, a waste roller 133 and a winding motor 134; an L-shaped feeding bracket is connected to one side of the vertical plate 1, the feeding roller 131 and the supporting roller 132 are axially connected on the vertical plate of the feeding bracket, the waste roller 133 is axially connected on the horizontal plate of the feeding bracket, and the winding motor 134 is connected to the horizontal plate of the feeding bracket, and the output shaft of the winding motor 134 is connected to the waste roller 133 through a pulley and a belt; the filter membrane is pulled out from the feeding roller 131, bypasses the supporting roller 132 and passes through the cavity 21, and then is wound around the waste roller 133, and the waste roller 133 is driven by the winding motor 134 to rewind the waste filter membrane that has been punched; the feeding and winding action of the filter membrane is realized through the winding mechanism 13.

[0041] like Figure 7 As shown, in one embodiment, the anti-adhesion structure 7 is a concave structure 71 opened inwardly on the surface of the blade head of the punching knife 5; the concave structure 71 can be a wave-shaped, tooth-shaped, convex structure that does not exceed the surface of the blade head of the punching knife 5, or a concave roughness design on the surface of the blade head of the punching knife 5; this structure can effectively prevent the electrostatic adhesion of the filter membrane punching sample, thereby achieving the technical effect that the punched filter membrane is not easy to adhere to the surface of the blade head of the punching knife 5, improving the work efficiency of the filter membrane punching sample material collection, and then solving the technical problem of low sampling efficiency due to the smooth surface of the blade head of the punching knife 5 and the filter membrane sample is easy to adhere to the surface of the blade head of the punching knife 5.

[0042] The non-smooth surface mainly refers to the corresponding texture design formed by etching on the surface of the punch blade 5, the roughened surface formed by the roughening process, the slightly rough coated surface formed by the spraying process, or the slightly rough plated surface formed by the coating process. By forming a non-smooth surface on the surface of the punch blade 5, the adhesion between the cut filter membrane and the end face of the cut end can be greatly reduced by increasing the surface roughness, thereby ensuring the effective transfer of the filter membrane and improving the assembly qualification rate.

[0043] like Figure 8 As shown, in one embodiment, the anti-sticking structure 7 is an anti-sticking pad 72 connected to the surface of the blade head of the punching knife 5, and the anti-sticking pad 72 is made of Teflon material; the design of the anti-sticking pad 72 of Teflon material can effectively prevent the electrostatic adhesion of the filter membrane punching sample, thereby achieving the technical effect that the punched filter membrane is not easy to adhere to the surface of the blade head of the punching knife 5, thereby improving the work efficiency of the filter membrane punching sample collection, and further solving the technical problem of low sampling efficiency due to the smooth surface of the blade head of the punching knife 5 and the filter membrane sample is easy to adhere to the surface of the blade head of the punching knife 5.

[0044] Working principle: the filter membrane is pulled out from the loading roller 131, bypasses the supporting roller 132 and passes through the cavity 21, and then wraps around the waste roller 133; the telescopic cylinder 8 drives the punching knife 5 to move along the punching hole 4 toward the cavity 21, and the driving component 9 drives the suction nozzle 6 to move toward the cavity 21, and the punching knife 5 and the suction nozzle 6 cooperate to punch out the filter membrane into a filter membrane sample; the vacuum pump works, sucks the punched filter membrane sample through the suction nozzle 6, and moves it to the workstation 100 through the driving component 9; at the same time, the waste roller 133 is driven to roll up the punched filter membrane waste through the winding motor 134. By providing an anti-adhesion structure 7 on the surface of the blade head of the punching knife 5, the surface of the blade head of the punching knife 5 is not easy to stick, thereby achieving the technical effect that the punched filter membrane is not easy to stick to the surface of the blade head of the punching knife 5, thereby improving the work efficiency of the filter membrane punching sample collection, and further solving the technical problem of low sampling efficiency due to the smooth surface of the blade head of the punching knife 5 and the filter membrane sample being easy to stick to the surface of the blade head of the punching knife 5.

[0045] In this application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings. These terms are mainly used to better describe the utility model and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0046] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A filter membrane punching structure, characterized in that: include: Two vertical plates (1) arranged at a distance from each other; A guide block (2) connected to the two vertical plates (1), and a through groove is formed on the guide block (2); A punching die (3) connected to the guide block (2) and forming, together with the through groove, a cavity (21) for the filter membrane to pass through; a punching hole (4), in the region of the cavity (21), penetrating the guide block (2) and the punching die (3); and The punching knife (5) is in the punching hole (4) of the guide block (2) and moves toward the cavity (21) through a telescopic cylinder (8); the surface of the blade head of the punching knife (5) is provided with an anti-adhesion structure (7).

2. A filter membrane punching structure as claimed in claim 1, characterized in that: A suction nozzle (6) is provided above the punching die (3), and the suction nozzle (6) moves toward the cavity (21) in the punching hole (4) through a driving component (9).

3. A filter membrane punching structure as claimed in claim 2, characterized in that: The suction end of the suction nozzle (6) has a blocking wall (61), and an air hole (62) is opened on the blocking wall (61).

4. A filter membrane punching structure as claimed in claim 2, characterized in that: The punch hole (4) in the punch die (3) is trumpet-shaped, and its diameter is larger than the outer diameter of the suction nozzle (6).

5. A filter membrane punching structure as claimed in claim 1, characterized in that: The vertical plate (1) is connected to a cylinder plate (10) on a side away from the guide block (2); the telescopic cylinder (8) is connected to the cylinder plate (10); and the telescopic end of the telescopic cylinder (8) passes through the cylinder plate (10) and is connected to a punching knife bracket (11); the punching knife bracket (11) is connected to the punching knife (5).

6. A filter membrane punching structure as claimed in claim 5, characterized in that: The punching knife support (11) is a frame-shaped structure, and a sliding group (12) is connected between the vertical plates (111) on both sides and the two vertical plates (1); the sliding group (12) comprises: a sliding rail (121) connected to the vertical plate (1), and a sliding block (122) connected to the vertical plate (111).

7. A filter membrane punching structure as claimed in claim 1, characterized in that: Also includes: A winding mechanism (13) for winding up and releasing the filter membrane; the winding mechanism (13) comprises: a loading roller (131) on one side of the cavity (21), a supporting roller (132) connected to the vertical plate (1) and between the loading roller (131) and the cavity (21), a waste roller (133) on the other side of the cavity (21), and a winding motor (134) drivingly connected to the waste roller (133).

8. A filter membrane punching structure as claimed in claim 1, characterized in that: The anti-adhesion structure (7) is an inwardly concave structure (71) or a non-smooth structure opened inwardly on the surface of the blade head of the punching knife (5).

9. A filter membrane punching structure as claimed in claim 1, characterized in that: The anti-adhesion structure (7) is an anti-adhesion pad (72) connected to the surface of the blade head of the punching knife (5).

10. A filter membrane punching structure according to claim 9, characterized in that: The anti-sticking pad (72) is made of Teflon material.

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