Filter membrane circular cutter set

Abstract

The utility model discloses a filter membrane cutting circular knife set, which comprises a bedplate, a fixed seat and a cutting tool, the lower end of the fixed seat is provided with a clamping hole matched with the bedplate, the upper end of the fixed seat is provided with a guide hole matched with the cutting tool, the clamping hole is communicated with the guide hole, the lower end of the cutting tool is provided with a circular knife, and the cutting tool is provided with a cutter. The cutting tool rotates around the axis of the circular knife in the guide hole, and the hole diameter of the guide hole is smaller than that of the clamping hole. Compared with the prior art, the filter membrane cutting device has the advantages that a filter membrane is placed on the platen and then sleeved with the fixing seat to fix the filter membrane, the cutting tool enters the guide hole to rotate to drive the circular knife to rotationally cut the filter membrane, and after cutting is completed, the cutting tool and the fixing seat are sequentially taken down. The whole structure is simple, manufacturing cost is low, cutting procedures are few, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of filter membrane cutting, in particular to a filter membrane circular cutting knife set. Background Art

[0002] Filter membranes are widely used in environmental monitoring of total particulate matter (such as PM 2.5 and PM 10 ) and element content, source analysis, etc. In many cases, multiple types of pollutants are collected on the same filter membrane, such as organic matter, inorganic matter, salt ions, etc., and the corresponding pre-treatment methods are also completely different. Secondly, in the process of determining the value of the standard filter membrane of the X-ray fluorescence spectrometer (including wavelength dispersion and energy dispersion), it is necessary to examine and evaluate the uniformity within the membrane, except for the micro-area X-ray fluorescence spectrometry method to scan the element distribution in the local area, but the equipment required for this method is of high value (millions of yuan), the use unit is extremely limited, and due to the lack of relevant standard substances, the element content cannot be directly traced. Therefore, the uniformity assessment and determination process urgently need traditional chemical analysis with reliable traceability and acceptable accuracy. Due to the different levels of particulate pollutant content and the different components of concern, a set of efficient tools is needed to achieve the cutting of filter membranes, and even the Mylar membrane required for X-ray fluorescence spectrometry. Based on the existing technology, it is found that the existing filter membrane cutting equipment or instruments are relatively expensive, and it costs a lot to purchase them separately for this purpose. However, in metrological detection and analysis, they are rarely used and the idle rate of the equipment is high, which will cause a huge waste of resources. Utility Model Content

[0003] The utility model provides a filter membrane circular cutting knife set, which is used to solve the problem that the existing filter membrane cutting device is relatively expensive but has a low utilization rate.

[0004] The utility model provides a filter membrane circular cutting knife set, comprising: a table, a fixing seat and a cutter, wherein the lower end of the fixing seat is provided with a clamping hole matched with the table, the upper end of the fixing seat is provided with a guide hole adapted to the cutter, the clamping hole is communicated with the guide hole, the lower end of the cutter is provided with a circular knife, the cutter rotates around the axis of the circular knife in the guide hole, and the aperture of the guide hole is smaller than the aperture of the clamping hole.

[0005] Preferably, the table top is made of plastic.

[0006] Preferably, the cutting tool is provided with an observation hole.

[0007] Preferably, the cutter includes a guide section, the outer diameter of the circular knife gradually decreases from one end close to the guide section to the other end, and the observation hole passes through the guide section.

[0008] Preferably, a knob section is fixed to the upper end of the guide section, the outer diameter of the knob section is larger than the diameter of the guide section, and the observation hole passes through the knob section.

[0009] Preferably, the outer surface of the knob section is provided with anti-slip grooves.

[0010] Preferably, the upper end of the platform and the opening of the clamping hole are both provided with a rounded corner structure or a chamfered right-angle structure.

[0011] Preferably, the outer contour of the fixing seat is circular, and the anti-slip pattern is also provided on the outer surface of the fixing seat.

[0012] Preferably, the cutting tool and the fixing seat are both made of stainless steel.

[0013] Preferably, a plurality of guide holes are provided at the upper end of the fixing seat.

[0014] Compared with the existing technology, in this utility model, the filter membrane is placed on the table, and then the fixing seat is put on to fix the filter membrane. The cutter enters the guide hole and rotates to drive the circular knife to cut the filter membrane. After cutting is completed, the cutter and the fixing seat are removed in sequence. The overall structure is simple, the production cost is low, the cutting process is reduced, and the efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 This is a schematic structural diagram of the first embodiment of the present utility model;

[0017] Figure 2 This is a schematic structural diagram of a fixing base according to the first embodiment of the present invention;

[0018] Figure 3 This is a schematic structural diagram of a cutting tool according to a first embodiment of the present invention;

[0019] Figure 4 This is a cross-sectional schematic diagram of a cutting tool according to the first embodiment of the present utility model;

[0020] Figure 5 This is a cross-sectional view of another cutting tool according to the first embodiment of the present invention;

[0021] Figure 6 This is a schematic structural diagram of the second embodiment of the present utility model;

[0022] Figure 7 This is a schematic structural diagram of the fixing base of the second embodiment of the present utility model.

[0023] Reference numerals:

[0024] 1. Table, 2. Fixed seat, 3. Cutting tool, 21. Clamping hole, 22. Guide hole, 31. Circular knife, 32. Guide section, 33. Knob section, 100. Observation hole. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1

[0027] Refer to the attached Figure 1 This embodiment provides a filter membrane circular cutter set, which is characterized by comprising: a platen 1, a fixing seat 2 and a cutter 3, as shown in the attached Figure 2 The lower end of the fixed seat 2 is provided with a card hole 21 that matches the table 1, and the upper end of the fixed seat 2 is provided with a guide hole 22 that matches the cutter 3. The card hole 21 is connected to the guide hole 22. Figure 3 , a circular knife 31 is provided at the lower end of the cutter 3, and the cutter 3 rotates around the axis of the circular knife 31 in the guide hole 22. The aperture of the guide hole 22 is smaller than the aperture of the clamping hole 21, and the height of the table 1 is greater than the depth of the clamping hole 21. The fixing seat 2 can press the filter membrane onto the table 1 by its own weight. In the utility model, a filter membrane is placed on the table 1, and then the fixing seat 2 is put on the table 1. The filter membrane is stuck between the fixing seat 2 and the table 1, and then the fixing seat 2 cooperates to restrict the filter membrane on the table 1 by gravity, so that the filter membrane can be effectively fixed. The cutter 3 enters along the guide hole 22, and the circular knife 31 rests on the filter membrane. The cutter 3 rotates in the guide hole 22 to drive the circular knife 31 to rotate, thereby rotating and cutting the filter membrane. Specifically, attached Figure 4 The inner diameter of the circular knife 31 is 49 mm. Figure 5 The inner diameter of the circular knife 31 is 34 mm. The circular knife 31 is designed to not interfere with the sample on the filter membrane when cutting the filter membrane.

[0028] Specifically, the tabletop 1 is cylindrical, and the cylindrical shape is designed to facilitate the tabletop 1 to be inserted into the clamping hole 21 .

[0029] As another embodiment of the present invention: the table 1 is made of plastic material. Through this structural design, when the circular knife 31 cuts the filter membrane on the table 1, the wear of the circular knife 31 can be reduced. Specifically, the table 1 is made of POM polyoxymethylene.

[0030] As another embodiment of the present invention, the cutter 3 is provided with an observation hole 100 , which facilitates observation of the condition of the filter membrane in the guide hole 22 .

[0031] As another embodiment of the present invention: Figure 3 The cutter 3 includes a guide section 32 that is slidably connected to the guide hole 22 and can rotate within the guide hole 22. The outer diameter of the circular blade 31 gradually decreases from one end near the guide section 32 to the other end. Through this arrangement, the cutting edge of the circular blade 31 will not be interfered with by the fixed base 2 when the circular blade 31 rotates to cut the filter membrane. The observation hole 100 passes through the guide section 32. Specifically, the cutting edge of the circular blade 31 needs to be surface hardened.

[0032] As another embodiment of the present invention, a knob section 33 is fixed to the upper end of the guide section 32. The outer diameter of the knob section 33 is larger than the diameter of the guide section 32. The observation hole 100 passes through the knob section 33. Specifically, the outer surface of the knob section 33 is knurled. This structural design facilitates the rotation of the cutter 3.

[0033] As another embodiment of the present invention, the upper end of the table 1 and the opening of the clamping hole 21 are both provided with a rounded corner structure or a chamfered right-angle structure. This structural design facilitates guiding the table 1 to be clamped into the clamping hole 21.

[0034] As another embodiment of the present invention: the outer contour of the fixing seat 2 is circular, and anti-slip patterns are also provided on the outer surface of the fixing seat 2. The fixing seat 2 is relatively heavy, and the anti-slip pattern design can increase friction and facilitate holding the fixing seat 2.

[0035] As another embodiment of the present invention: the cutting tool 3 and the fixing base 2 are both made of stainless steel.

[0036] Example 2

[0037] This embodiment 1 is basically the same as the first embodiment, except that:

[0038] Refer to the attached Figure 6 and attached Figure 7 A plurality of guide holes 22 are provided at the upper end of the fixing seat 2. After the filter membrane is fixed, the cutter 3 enters different guide holes 22 to rotary cut a plurality of membrane sheets, thereby improving the cutting efficiency.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A filter membrane circular cutter set, characterized in that: include: A table, a fixing seat and a cutter, wherein the lower end of the fixing seat is provided with a clamping hole matching the table, the upper end of the fixing seat is provided with a guide hole matching the cutter, the clamping hole is connected to the guide hole, the lower end of the cutter is provided with a circular knife, the cutter rotates around the axis of the circular knife in the guide hole, and the aperture of the guide hole is smaller than the aperture of the clamping hole.

2. The filter membrane circular cutter set according to claim 1, characterized in that: The table top is made of plastic material.

3. The filter membrane circular cutter set according to claim 1, characterized in that: The cutting tool is provided with an observation hole.

4. The filter membrane circular cutter set according to claim 3, characterized in that: The cutter includes a guide section, the outer diameter of the circular knife gradually decreases from one end close to the guide section to the other end, and the observation hole passes through the guide section.

5. The filter membrane circular cutter set according to claim 4, characterized in that: A knob section is fixed to the upper end of the guide section. The outer diameter of the knob section is larger than the diameter of the guide section. The observation hole passes through the knob section.

6. The filter membrane circular cutter set according to claim 5, characterized in that: The outer surface of the knob section is provided with anti-slip grooves.

7. The filter membrane circular cutter set according to claim 6, characterized in that: The upper end of the platform and the opening of the clamping hole are both provided with a rounded corner structure or a chamfered right-angle structure.

8. The filter membrane circular cutter set according to claim 7, characterized in that: The outer contour of the fixing seat is circular, and the anti-slip pattern is also provided on the outer surface of the fixing seat.

9. The filter membrane circular cutter set according to claim 2, characterized in that: The cutting tool and the fixing seat are both made of stainless steel.

10. The filter membrane circular cutter set according to claim 1, characterized in that: The upper end of the fixing seat is provided with a plurality of guide holes.

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