Automatic film cutting device

Abstract

The utility model provides an automatic film cutting device which comprises a driving mechanism, a guide block and a cutter assembly, and a guide groove allowing the upper portion of a kit to be inserted is formed in the bottom face of the guide block. The cutter assembly is fixedly connected with the guide block, and the driving mechanism drives the guide block and the cutter assembly to move back and forth relative to the kit; the cutter assembly comprises two blades, and the two blades are located in front of the guide groove and located on the left side and the right side of the kit respectively. When the guide block and the cutter assembly are driven by the driving mechanism to move from back to front relative to the kit to cut the film, the guide groove can guide the position of the kit and can limit lifting of the kit, and the kit is effectively prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of medical instrument technology, and in particular to an automatic membrane cutting device. Background Technology

[0002] A reagent kit is a container used to hold biochemical assay reagents, and it has multiple chambers for holding liquids. To prevent liquid from flowing out of the chambers and contaminants from entering the chambers before analysis, a sealing film is usually heat-sealed onto the top surface of the reagent kit. To improve heat-sealing efficiency, a production method of heat-sealing multiple reagent kits at once is currently used. However, in actual use, the reagent kit is still used as a single unit. To meet the actual demand for finished products, multiple reagent kits are manually cut into individual units using a utility knife, which results in low work efficiency, high labor costs, and inconvenience.

[0003] To address the aforementioned technical problems, Chinese Patent Publication No. CN212096498U provides a reagent kit membrane cutting device, including a base, a sliding assembly, and a blade holder assembly. The sliding assembly includes a guide rail disposed on the base and a slider that can slide on the guide rail. The blade holder assembly includes a blade holder and a plurality of cutting blades disposed on the blade holder. The slider is connected to the blade holder, allowing the blade holder assembly to slide along the guide rail via the slider. In the aforementioned prior art, when the sealing membrane on the reagent kit is cut by the cutting blade, the reagent kit is easily lifted by the force, which can lead to damage to the reagent kit.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] The purpose of this invention is to provide an automatic film cutting device to address the shortcomings and deficiencies of the existing technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides an automatic film cutting device, including a drive mechanism, a guide block and a blade assembly, wherein the bottom surface of the guide block is provided with a guide groove for the upper part of the reagent kit to be inserted;

[0008] The cutting tool assembly is fixedly connected to the guide block, and the driving mechanism drives the guide block and the cutting tool assembly to move back and forth relative to the reagent kit;

[0009] The cutting tool assembly includes two blades, which are located in front of the guide groove and on the left and right sides of the reagent kit, respectively.

[0010] With the above structural design, when the guide block and the cutter assembly move from back to front relative to the reagent kit to cut the membrane under the drive mechanism, the guide groove can guide the position of the reagent kit and limit the reagent kit from lifting, effectively avoiding damage to the reagent kit.

[0011] According to the above scheme, the tool assembly further includes a mounting block, which is detachably and fixedly connected to the guide block. The two blades are detachably connected to the left and right sides of the mounting block, respectively. This structural design improves the ease of mounting the tool assembly to the guide block and facilitates blade replacement.

[0012] According to the above scheme, the blade includes a blade body and a blade edge connected in sequence from top to bottom. The blade edge is configured to be inclined from top to bottom outwards and to contact the edge of the upper surface of the reagent kit.

[0013] By setting the blade to slope downwards and outwards, cutting resistance can be reduced, resulting in smoother cutting.

[0014] According to the above scheme, limiting members are provided on the left and right sides of the blade body, and the two limiting members are detachably fixed on the mounting block; fasteners are detachably fixed on the upper surface of the mounting block, and the two limiting members and the fasteners together limit the blade body.

[0015] The mounting block has a through hole, and a spring is installed in the through hole. The two ends of the spring abut against the blade body of the two blades respectively.

[0016] The above-described structure allows the blade to be flexibly mounted on the mounting block, enabling the blade to adapt to minor deviations in the reagent kit and ensuring smooth contact between the blade edge and the upper surface edge of the reagent kit.

[0017] According to the above scheme, the guide block is provided with a positioning plate, the positioning plate has multiple positioning holes, and the mounting block is provided with multiple positioning posts that cooperate with the positioning holes.

[0018] The above structural design allows the positioning plate to fix the mounting block to the guide block; the cooperation of the positioning holes and positioning pins helps to improve the assembly efficiency of the mounting block on the positioning plate.

[0019] According to the above scheme, the bottom surface of the guide block is also provided with a clearance groove that communicates with the guide groove, and the clearance groove is located above the guide groove; the shape of the clearance groove is set to match the TIP head placement bracket on the reagent kit.

[0020] Because the reagent kit has a TIP head holder protruding from its upper surface, a clearance groove is provided so that the TIP head holder can pass through the clearance groove when the guide block moves back and forth relative to the reagent kit, thereby preventing interference with the back and forth movement of the guide block. The shape of the clearance groove is designed to match the TIP head holder on the reagent kit, so that when the guide block moves back and forth relative to the reagent kit, the clearance groove also serves to position the reagent kit and prevent displacement of the reagent kit.

[0021] According to the above scheme, a control mechanism is also included, which is electrically connected to the drive mechanism. This structural arrangement allows the user to operate the drive mechanism via the control mechanism.

[0022] According to the above scheme, it also includes a tray, on which a groove is provided that matches the shape of the bottom of the reagent kit.

[0023] By setting a groove on the tray that matches the shape of the bottom of the reagent kit, the reagent kit can be effectively limited. The combination of the groove and the guide groove effectively prevents the reagent kit from shifting during the cutting process.

[0024] According to the above scheme, a base is also included, and the driving mechanism includes a cylinder. The tray and the cylinder are respectively fixed on the base, and the output end of the cylinder is fixedly connected to the blade assembly. The cylinder controls the extension and retraction of the output end, thereby driving the guide block and the blade assembly to move back and forth relative to the reagent kit.

[0025] According to the above scheme, multiple grooves are opened on the tray, the number of guide blocks and tool assemblies is the same as the number of grooves, a connecting plate is fixedly connected to the output end of the cylinder, and multiple tool assemblies are respectively fixed on the connecting plate.

[0026] With the above structural design, the cylinder drives the connecting plate to move back and forth, which in turn drives multiple guide blocks and cutter assemblies to move synchronously relative to their corresponding reagent kits, thereby enabling the simultaneous cutting of the sealing film on the upper surface of multiple reagent kits and improving work efficiency.

[0027] The beneficial effects of this utility model are as follows:

[0028] This invention features a guide groove on the bottom surface of a guide block into which the upper part of the reagent kit can be inserted. The cutter assembly is fixedly connected to the guide block, and a drive mechanism drives the guide block and the cutter assembly to move back and forth relative to the reagent kit. When the guide block and the cutter assembly move from back to front relative to the reagent kit to cut the membrane under the drive mechanism, the guide groove can guide the position of the reagent kit and limit the reagent kit from lifting, effectively preventing damage to the reagent kit. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 yes Figure 1 Enlarged structural diagram of section A in the middle;

[0031] Figure 3 This is a schematic diagram of the structure of the reagent kit described in this utility model placed on a tray;

[0032] Figure 4 This is a schematic diagram of the structure of the cutting tool assembly of this utility model fixed on the guide block. Figure 1 ;

[0033] Figure 5 This is a schematic diagram of the structure of the cutting tool assembly of this utility model fixed on the guide block. Figure 2

[0034] Figure 6 This is a schematic diagram of the structure of the cutting tool assembly described in this utility model;

[0035] Figure 7 This is an exploded view of the cutting tool assembly described in this utility model.

[0036] In the diagram: 1. Guide block; 11. Guide groove; 12. Clearance groove; 13. Positioning plate; 131. Positioning hole; 2. Tool assembly; 21. Blade; 211. Tool body; 212. Blade edge; 22. Mounting block; 221. Through hole; 222. Positioning post; 24. Limiting element; 25. Fastener; 26. Spring; 3. Reagent kit; 31. Sealing film; 32. TIP head holder; 4. Tray; 41. Groove; 5. Base; 6. Cylinder; 7. Connecting plate. Detailed Implementation

[0037] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0038] like Figure 1-7 As shown, this utility model provides an automatic film cutting device, including a driving mechanism, a guide block 1, and a blade assembly 2. The bottom surface of the guide block 1 has a guide groove 11 for the upper part of the reagent kit 3 to be inserted. The blade assembly 2 is fixedly connected to the guide block 1. The driving mechanism drives the guide block 1 and the blade assembly 2 to move back and forth relative to the reagent kit 3. The blade assembly 2 includes two blades 21, which are located in front of the guide groove 11 and on the left and right sides of the reagent kit 3, respectively.

[0039] With the above structural design, when the guide block 1 and the cutter assembly 2 move from back to front relative to the reagent kit 3 to cut the membrane under the drive mechanism, the guide groove 11 can guide the position of the reagent kit 3 and restrict the reagent kit 3 from lifting, effectively avoiding damage to the reagent kit 3.

[0040] Furthermore, the tool assembly 2 also includes a mounting block 22, which is detachably and fixedly connected to the guide block 1. The two blades 21 are detachably connected to the left and right sides of the mounting block 22, respectively. This structural design improves the ease of mounting the tool assembly 2 to the guide block 1 and facilitates the replacement of the blades 21.

[0041] Furthermore, the blade 21 includes a blade body portion 211 and a blade edge portion 212 connected sequentially from top to bottom. The blade edge portion 212 is configured to be inclined outward and contacts the edge of the upper surface of the reagent kit 3.

[0042] By setting the blade portion 212 to be inclined outward, the cutting resistance can be reduced, thereby making the cutting smoother.

[0043] Furthermore, the blade body 211 is provided with limiting members 24 on its left and right sides respectively, and the two limiting members 24 are detachably fixed to the mounting block 22; the upper surface of the mounting block 22 is detachably fixed with fasteners 25, and the two limiting members 24 and the fasteners 25 together limit the blade body 211.

[0044] The mounting block 22 has a through hole 221, and a spring 26 is provided in the through hole 221. The two ends of the spring 26 abut against the blade body 211 of the two blades 21 respectively.

[0045] With the above structural design, the blade 21 is flexibly mounted on the mounting block 22, which allows the blade 21 to adapt to minor deviations in the reagent kit 3, thereby ensuring that the blade 212 smoothly contacts the edge of the upper surface of the reagent kit 3.

[0046] Furthermore, the guide block 1 is provided with a positioning plate 13, the positioning plate 13 is provided with a plurality of positioning holes 131, and the mounting block 22 is provided with a plurality of positioning posts 222 that cooperate with the positioning holes 131.

[0047] The above-mentioned structural design allows the positioning plate 13 to fix the mounting block 22 to the guide block 1; the cooperation between the positioning hole 131 and the positioning post 222 helps to improve the assembly efficiency of the mounting block 22 on the positioning plate 13.

[0048] Furthermore, the bottom surface of the guide block 1 is provided with a clearance groove 12 that communicates with the guide groove 11, and the clearance groove 12 is located above the guide groove 11; the shape of the clearance groove 12 is set to match the TIP head placement bracket 32 ​​on the reagent kit 3.

[0049] Because the reagent kit 3 has a TIP head holder 32 protruding from its upper surface, a clearance groove 12 is provided so that when the guide block 1 moves back and forth relative to the reagent kit 3, the TIP head holder 32 can pass through the clearance groove 12, thereby preventing interference with the back and forth movement of the guide block 1. The shape of the clearance groove 12 is designed to match the TIP head holder 32 on the reagent kit 3, so that when the guide block 1 moves back and forth relative to the reagent kit 3, the clearance groove 12 also serves to position the reagent kit 3.

[0050] Furthermore, it also includes a control mechanism (not shown in the figure), which is electrically connected to the drive mechanism. This structural arrangement allows the user to operate the drive mechanism via the control mechanism.

[0051] Furthermore, it also includes a tray 4, on which a groove 41 is provided that matches the shape of the bottom of the reagent kit 3.

[0052] By setting a groove 41 on the tray 4 that matches the bottom shape of the reagent kit 3, the reagent kit 3 can be effectively limited. The combination of the groove 41 and the guide groove 11 effectively prevents the reagent kit 3 from shifting during the cutting process.

[0053] Furthermore, it also includes a base 5, and the driving mechanism includes a cylinder 6. The tray 4 and the cylinder 6 are respectively fixed on the base 5, and the output end of the cylinder 6 is fixedly connected to the cutter assembly 2. The cylinder 6 controls the extension and retraction of the output end, thereby driving the guide block 1 and the cutter assembly 2 to move back and forth relative to the reagent kit 3.

[0054] Furthermore, the tray 4 has multiple grooves 41, the number of guide blocks 1 and tool assemblies 2 is the same as the number of grooves 41, the output end of the cylinder 6 is fixedly connected to a connecting plate 7, and multiple tool assemblies 2 are respectively fixed on the connecting plate 7.

[0055] With the above structural design, the cylinder 6 drives the connecting plate 7 to move back and forth, which in turn drives multiple guide blocks 1 and the cutting tool assembly 2 to move synchronously relative to their corresponding reagent kits 3, thereby achieving simultaneous cutting of the sealing film 31 on the upper surface of multiple reagent kits 3 and improving work efficiency.

[0056] In practical use, taking the cutting of a kit group consisting of seven reagent kits 3 as an example, the grooves 41, guide blocks 1, and blade assemblies 2 are all set to seven. Before cutting the membrane, the automatic membrane cutting device drives the connecting plate 7 to move backward to the initial position where the blade assembly 2 is located above and behind the tray 4, inserting the bottoms of the seven reagent kits 3 into the grooves 41 respectively; the cylinder 6 drives the connecting plate 7 to move forward, thereby driving multiple guide blocks 1 and blade assemblies 2 to move forward synchronously until the upper part of the reagent kit 3 is inserted into the guide groove 11; then the cylinder 6 continues to drive the connecting plate 7 to move forward, the guide groove 11 guides the position of the reagent kit 3 and can restrict the reagent kit 3 from lifting, the blades 212 on the left and right sides of the reagent kit 3 cut the sealing film 31 along the upper surface edge of the reagent kit 3, thereby realizing the division of the kit group into seven reagent kits 3; after the membrane cutting is completed, the cylinder 6 drives the connecting plate 7 to return to the initial position, and the cut seven reagent kits 3 are taken out from the tray 4.

[0057] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An automatic film cutting device characterized by, Including driving mechanism, guide block (1) and cutter assembly (2), the bottom surface of the guide block (1) is provided with a guide groove (11) for the upper part of the kit (3) to be inserted; The cutter assembly (2) is fixedly connected with the guide block (1), and the driving mechanism drives the guide block (1) and the cutter assembly (2) to move forward and backward relative to the kit (3). The cutter assembly (2) includes two blades (21), which are located in front of the guide groove (11) and are respectively located on the left and right sides of the kit (3).

2. The automatic film cutting device of claim 1, wherein, The cutter assembly (2) further includes a mounting block (22), which is detachably fixedly connected with the guide block (1), and the two blades (21) are respectively detachably connected on the left and right side surfaces of the mounting block (22).

3. The automatic film cutting device of claim 2, wherein, The blade (21) includes a cutter body part (211) and a cutter edge part (212) connected in sequence from top to bottom, the cutter edge part (212) is inclined outward from top to bottom, and the cutter edge part (212) is in contact with the upper surface edge of the kit (3).

4. The automatic film cutting device of claim 3, wherein, The left and right sides of the cutter body part (211) are respectively provided with limit pieces (24), and the two limit pieces (24) are detachably fixed on the mounting block (22); The upper surface of the mounting block (22) is detachably fixed with a fastener (25), and the two limit pieces (24) and the fastener (25) jointly limit the cutter body part (211); A through hole (221) is formed in the mounting block (22), a spring (26) is arranged in the through hole (221), and the two ends of the spring (26) are respectively in abutment with the cutter body parts (211) of the two blades (21).

5. The automatic film cutting device of claim 2, wherein, A positioning plate (13) is arranged on the guide block (1), the positioning plate (13) is provided with a plurality of positioning holes (131), and the mounting block (22) is provided with a plurality of positioning columns (222) matched with the positioning holes (131).

6. The automatic film cutting device of claim 1, wherein, The bottom surface of the guide block (1) is further provided with an avoidance groove (12) communicated with the guide groove (11), and the avoidance groove (12) is located above the guide groove (11); the avoidance groove (12) is matched with the TIP head placing rack (32) on the kit (3).

7. The automatic film cutting device of claim 1, wherein, Further comprising a control mechanism, the control mechanism is electrically connected with the driving mechanism.

8. The automatic film cutting apparatus according to any one of claims 1 to 7, characterized by Further comprising a tray (4), the tray (4) is provided with a groove (41) matched with the shape of the bottom of the kit (3).

9. The automatic film cutting device of claim 8, wherein, Further comprising a base (5), the driving mechanism includes a cylinder (6), the tray (4) and the cylinder (6) are respectively fixed on the base (5), and the output end of the cylinder (6) is fixedly connected with the cutter assembly (2).

10. The automatic film cutting device of claim 9, wherein, A plurality of grooves (41) are formed in the tray (4), the number of guide blocks (1) and cutter assemblies (2) is the same as the number of grooves (41), a connecting plate (7) is fixedly connected to the output end of the cylinder (6), and a plurality of cutter assemblies (2) are respectively fixed on the connecting plate (7).

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