Filter membrane sampling and slitting device

Abstract

The utility model relates to the technical field of filter membrane cutting, and discloses a filter membrane sampling and cutting device which comprises a membrane cutting seat, a membrane cutting assembly is arranged on the top face in the membrane cutting seat, a driving piece is arranged on the top face of the membrane cutting seat, and the membrane cutting assembly comprises a base plate and a tool bit which are arranged in the membrane cutting seat. The top end of the tool tool bit penetrates through and is fixed to the bottom face of a base plate, the base plate is made of acrylic plates, and a pressing plate is arranged above the base plate. According to the utility model, the base plate made of an acrylic plate is used as a platform for placing a filter membrane to protect the quality level of the cut membrane, and the design that the driving rod drives the eccentric wheel to rotate and press the pressing plate is adopted, so that the pressing stroke of the pressing plate can reach 15mm, the slitting of the filter membranes with different thicknesses can be met, the slitting effect is ensured, and meanwhile, the lever principle is utilized to ensure the quality of the membrane. The tool bit and the base plate are independent tools, the tool bits of various sizes are integrated, and one-time sampling of samples of different sizes required by detection of different performances each time can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of filter membrane slitting, in particular to a filter membrane sampling and slitting device. Background Art

[0002] When performing physical and chemical tests on the contents in a fluid, a filter with a filter membrane is often used to collect the contents. That is, after filtering the fluid through the filter for a certain period of time, the filter membrane in the filter is taken out, and the contents filtered out on the filter membrane are subjected to physical and chemical tests. To ensure the objectivity and accuracy of the test results, according to the different test requirements of the object to be tested, the filter membrane is usually cut into several identical parts, and one part is taken for testing to represent the test results of the current collected sample.

[0003] The existing film cutting and sampling machine (publication number: 202420141715.8) has at least the following drawbacks: This device adopts a mechanical integrated structure with all-metal and fixed-limited cutting tool heads. The metal cutting of the film may damage the film sheets of different materials of the filter membrane, and the quality level of the sampled film sheets cannot be guaranteed. The fixed limit of the cutting tool head restricts the thickness of the slit filter membrane, and there may be a situation where the film cannot be cut when slitting filter membrane sheets of different thicknesses. Only one cutting tool head can be installed on one machine, and only one specification and size of sample can be taken with one cutting tool head, resulting in low sampling efficiency. Content of the Utility Model

[0004] The purpose of the utility model is to solve the deficiencies existing in the prior art, and a filter membrane sampling and slitting device is proposed.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A filter membrane sampling and slitting device includes a film cutting seat. A film cutting assembly is arranged on the inner top surface of the film cutting seat, and a driving member is arranged on the top surface of the film cutting seat. The film cutting assembly includes a backing plate and a tooling cutter head arranged inside the film cutting seat. The top end of the tooling cutter head penetrates and is fixed to the bottom surface of the backing plate. The backing plate is made of acrylic board material, and a pressing plate is arranged above the backing plate.

[0007] As a further solution of the utility model, the driving member includes a rotating shaft arranged above the film cutting seat. Both ends of the rotating shaft are rotatably connected to support rods. A threaded rod is fixed to the bottom of the support rod, and the threaded rod is connected to the top surface of the film cutting seat. Eccentric wheels are fixed to the outer wall of the rotating shaft near the left and right ends, and a driving rod is fixed to the center of the outer wall of the rotating shaft. Two linkage rods are fixed to the top surface of the pressing plate. The linkage rods penetrate and are slidably inserted into the inner top surface of the film cutting seat, and the top ends of the linkage rods are in contact with the outer wall of the eccentric wheel.

[0008] As a further solution of the present utility model, a spring is sleeved on the outer wall of the linkage rod, and the top end and the bottom end of the spring respectively abut against the top end of the linkage rod and the top surface of the film cutting seat.

[0009] As a further solution of the present utility model, the threaded rod penetrates through and is slidably inserted into the top surface of the film cutting seat, and two nuts are threadedly connected to the outer wall of the threaded rod, and the two nuts respectively abut tightly against the top surface and the inner top surface of the film cutting seat.

[0010] As a further solution of the present utility model, the horizontal included angle of the driving rod is 35 degrees, and the maximum downward pressing stroke of the pressing plate is 15 mm.

[0011] As a further solution of the present utility model, a support plate is placed on the inner top surface of the film cutting seat, the tooling cutter head is placed on the top surface of the support plate, and the area of the support plate is larger than that of the pressing plate and the backing plate.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] By using the backing plate made of acrylic plate as the platform for placing the filter membrane, the quality level of the film after film cutting can be effectively protected. The design of using the driving rod to drive the eccentric wheel to rotate and press down the pressing plate enables the downward pressing stroke of the pressing plate to reach 15 mm, which can meet the requirements of cutting filter membranes with different thicknesses and ensure the cutting effect. At the same time, the lever principle is utilized to make the film cutting process more labor-saving. The tooling cutter head and the backing plate adopt independent tooling, and multiple sizes of tooling cutter heads are integrated, which can realize one-time sampling of the sample sizes required for different performance detections each time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. 1 is a schematic perspective view of a filter membrane sampling and cutting device proposed by the present utility model;

[0015] Figure 2 FIG. 2 is a schematic front view of a filter membrane sampling and cutting device proposed by the present utility model;

[0016] Figure 3 FIG. 3 is a schematic side view of a filter membrane sampling and cutting device proposed by the present utility model;

[0017] Figure 4 FIG. 4 is a schematic top view of the backing plate of a filter membrane sampling and cutting device proposed by the present utility model.

[0018] In the figure: 1, film cutting seat; 2, backing plate; 201, tooling cutter head; 202, pressing plate; 203, rotating shaft; 204, support rod; 205, threaded rod; 206, eccentric wheel; 207, driving rod; 208, linkage rod; 3, spring; 4, nut; 5, support plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to make the technical means, creative features, achieved purposes and functions realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0022] As Figures 1-4 shown, a filter membrane sampling and slitting device includes a film slitting base 1. A film slitting assembly is provided on the inner top surface of the film slitting base 1, and a driving member is provided on the top surface of the film slitting base 1. The film slitting assembly includes a backing plate 2 and a tooling cutter head 201 provided inside the film slitting base 1. The top end of the tooling cutter head 201 penetrates and is fixed to the bottom surface of the backing plate 2. The backing plate 2 is made of acrylic board material, and a pressing plate 202 is provided above the backing plate 2.

[0023] As Figures 2-4As shown, in this embodiment, the driving member includes a rotating shaft 203 disposed above the film cutting seat 1. Both ends of the rotating shaft 203 are rotatably connected to support rods 204. A threaded rod 205 is fixed to the bottom of the support rod 204, and the threaded rod 205 is connected to the top surface of the film cutting seat 1. Eccentric wheels 206 are fixed to the outer wall of the rotating shaft 203 near both left and right ends. A driving rod 207 is fixed to the center of the outer wall of the rotating shaft 203. Two linkage rods 208 are fixed to the top surface of the pressing plate 202. The linkage rods 208 penetrate through and are slidably inserted into the inner top surface of the film cutting seat 1. The top ends of the linkage rods 208 are in contact with the outer walls of the eccentric wheels 206. By using the cushion plate 5 made of acrylic plate as the platform for placing the filter membrane, the quality level of the film after cutting can be effectively protected. By adopting the design of driving the eccentric wheel 206 to rotate and press down the pressing plate 202 by pressing down the driving rod 207, the lever principle is utilized, making the film cutting process more labor-saving. By using the independent tooling for the tool bit 201 and the cushion plate 2 and integrating tool bits 201 of various sizes, the sample sizes required for different performance tests can be sampled at one time.

[0024] As Figures 2-4 shown, in this embodiment, a spring 3 is sleeved on the outer wall of the linkage rod 208. The top end and the bottom end of the spring 3 are respectively in contact with the top end of the linkage rod 208 and the top surface of the film cutting seat 1. By the arrangement of the spring 3, after each film cutting, the linkage rod 208 and the pressing plate 202 can be automatically lifted by the elastic force of the spring 3, facilitating the taking of the cut filter membrane.

[0025] As Figures 2-4 shown, in this embodiment, the threaded rod 205 penetrates through and is slidably inserted into the top surface of the film cutting seat 1. Two nuts 4 are threadedly connected to the outer wall of the threaded rod 205. The two nuts 4 are respectively in close contact with the top surface and the inner top surface of the film cutting seat 1. By the threaded rod 205 penetrating through and being slidably inserted into the top surface of the film cutting seat 1 and using two nuts 4 to fix the threaded rod 205, the disassembly of structures such as the rotating shaft 203 and the eccentric wheel 206 can be realized, facilitating the maintenance thereof.

[0026] As Figures 2-4 shown, in this embodiment, the horizontal included angle of the driving rod 207 is 35 degrees, and the maximum downward pressing stroke of the pressing plate 202 is 15 mm. By setting the horizontal included angle of the driving rod 207 to 35 degrees, it is convenient for the staff to have sufficient space to press and rotate the driving rod 207. By the maximum downward pressing stroke of the pressing plate 202 being 15 mm, the cutting of filter membranes with different thicknesses can be satisfied, and the cutting effect can be ensured.

[0027] As Figures 2-4As shown, in this embodiment, a support plate 5 is placed on the inner top surface of the film cutting base 1, and the tooling cutter head 201 is placed on the top surface of the support plate 5. The area of the support plate 5 is larger than that of the pressing plate 202 and the backing plate 2. By setting the support plate 5 with an area larger than that of the pressing plate 202 and the backing plate 2, the tooling cutter head 201 and the backing plate 2 can be first placed on the support plate 5, and then the pressing plate 202 is driven to press down the tooling cutter head 201 by pressing down the driving rod 207 to achieve slicing.

[0028] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects: In use, the corresponding backing plate 2 and tooling cutter head 201 are selected according to the slitting requirements of the filter membrane. Subsequently, the filter membrane is placed on the top surface of the backing plate 5, and then the backing plate 2 and the tooling cutter head 201 are placed on the top surface of the support plate 5. The support plate 5 is pushed into the interior of the film cutting base 1 to make the backing plate 2 and the filter membrane correspond to the position of the pressing plate 202. Subsequently, the driving rod 207 is held and pressed down. At this time, the driving rod 207 drives the rotating shaft 203 to rotate, and the rotating shaft 203 drives the eccentric wheel 206 to rotate. The eccentric wheel 206 presses down on the linkage rod 208, causing the pressing plate 202 to press tightly against the backing plate 2. During this process, the spring 3 is compressed, and the filter membrane is slit in cooperation with the tooling cutter head 201. Subsequently, the staff releases the driving rod 207. At this time, the spring 3 exerts an elastic force on the linkage rod 208, and the linkage rod 208 and the pressing plate 202 move upward to reset. At this time, the tooling 2 and 201 are taken out, and the slit filter membrane can be taken out. By passing through and slidably inserting the threaded rod 205 through the top surface of the film cutting base 1 and fixing the threaded rod 205 with two nuts 4, the disassembly of structures such as the rotating shaft 203 and the eccentric wheel 206 can be realized, which is convenient for maintenance. By setting the horizontal angle of the driving rod 207 to 35 degrees, it is convenient for the staff to have sufficient space to press and rotate the driving rod 207. With the maximum pressing stroke of the pressing plate 202 being 15 mm, the slitting of filter membranes with different thicknesses can be satisfied, and the slitting effect can be ensured.

[0029] The above shows and describes the basic principles, main features, and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A filter membrane sampling and slitting device, comprising a film slitting base (1), characterized in that, The inner top surface of the film cutting base (1) is provided with a film cutting assembly, and the top surface of the film cutting base (1) is provided with a driving member. The film cutting assembly includes a backing plate (2) and a tooling cutter head (201) disposed inside the film cutting base (1). The top end of the tooling cutter head (201) penetrates and is fixed to the bottom surface of the backing plate (2). The backing plate (2) is made of acrylic plate material, and a pressing plate (202) is disposed above the backing plate (2).

2. The filter membrane sampling and slitting device according to claim 1, characterized in that, The driving member includes a rotating shaft (203) disposed above the film cutting base (1). Both ends of the rotating shaft (203) are rotatably connected to support rods (204). A threaded rod (205) is fixed to the bottom of the support rod (204). The threaded rod (205) is connected to the top surface of the film cutting base (1). Eccentric wheels (206) are fixed to the outer wall of the rotating shaft (203) near the left and right ends. A driving rod (207) is fixed to the center of the outer wall of the rotating shaft (203). Two linkage rods (208) are fixed to the top surface of the pressing plate (202). The linkage rods (208) penetrate and are slidably inserted into the inner top surface of the film cutting base (1). The top end of the linkage rod (208) abuts against the outer wall of the eccentric wheel (206).

3. A filter membrane sampling and slitting device according to claim 2, characterized in that, A spring (3) is sleeved on the outer wall of the linkage rod (208). The top end and the bottom end of the spring (3) respectively abut against the top end of the linkage rod (208) and the top surface of the film cutting base (1).

4. A filter membrane sampling and slitting device according to claim 3, characterized in that, The threaded rod (205) penetrates and is slidably inserted into the top surface of the film cutting base (1). Two nuts (4) are threadedly connected to the outer wall of the threaded rod (205). The two nuts (4) respectively abut tightly against the top surface and the inner top surface of the film cutting base (1).

5. A filter membrane sampling and slitting device according to claim 4, wherein The horizontal angle of the driving rod (207) is 35 degrees, and the maximum downward pressing stroke of the pressing plate (202) is 15 mm.

6. The slit sampling device for filter membrane according to claim 5, wherein, A support plate (5) is placed on the inner top surface of the film cutting base (1). The tooling cutter head (201) is placed on the top surface of the support plate (5). The area of the support plate (5) is larger than that of the pressing plate (202) and the backing plate (2).

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