Shearing device for automatic fluoride tester

Abstract

The present invention discloses a shearing device for an automatic fluoride measuring instrument, including a chassis and a controller. A film holding plate is arranged in the chassis. A presser, a circular cutter located inside the presser, and a push plate located inside the circular cutter are arranged in sequence above the film holding plate. The tops of the presser, the circular cutter, and the push plate are driven to rise and fall by a driving mechanism, and the controlled end of the driving mechanism is connected to the output end of the controller. A circular leak hole matching the circular cutter is provided on the film holding plate. A paper shredding mechanism is arranged below the film holding plate, and a discharge port is arranged at the bottom of the paper shredding mechanism, and the controlled end of the paper shredding mechanism is connected to the output end of the controller. The present invention can realize continuous shearing of filter membranes without manual supervision. By arranging a paper shredding mechanism below the film holding plate, the present invention can shred the filter membrane after circular cutting into uniform, standard-compliant fragments.

Description

Technical Field

[0001] The invention relates to the technical field of fluoride detection devices, in particular to a shearing device for an automatic fluoride measuring instrument. Background Art

[0002] There are two types of fluoride in the ambient air: gaseous fluorine and dusty fluorine. Gaseous fluorine is mainly hydrogen fluoride, and fluorine-containing dust is mainly cryolite, fluorite, aluminum fluoride and apatite. Pollution mainly comes from gases and dust emitted or dispersed by aluminum electrolytic plants, phosphate fertilizer plants and cryolite plants. Hydrogen fluoride in humans is 400-430 mg / m 3 Low concentrations can cause acute poisoning and lead to death. Long-term inhalation of low concentrations of fluorine and its compound gases and dust can affect the normal physiological functions of various tissues and organs, and even cause chronic fluorine poisoning and skeletal fluorosis. Therefore, it is very important to accurately measure fluoride pollution in ambient air.

[0003] The monitoring process of fluoride mainly includes three stages: sample sampling, separation and analysis. After fluoride sampling, the filter membrane needs to be taken out and the fluoride on the filter membrane needs to be separated.

[0004] The traditional way to remove the filter membrane is to manually remove the filter membrane, but it is easy to cause human contamination. At present, there is no equipment specifically for cutting filter membranes on the market, and they are all cut directly with scissors. Although the manual cutting method can complete the cutting of the filter membrane, the size of the cut filter membrane is not standardized, and the purpose of automatic unattended operation cannot be achieved. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a shearing device for an automatic fluoride analyzer to solve the problems of non-standard size of filter membranes cut by direct shearing with scissors, easy human pollution and inability to achieve automatic unattended operation, so that the filter membrane can be evenly crushed to improve the subsequent fluoride extraction efficiency, while avoiding the influence of human factors and achieving continuous shearing of the filter membrane without manual supervision.

[0006] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows.

[0007] A shearing device for an automatic fluoride analyzer comprises a chassis and a controller for controlling the overall operation of the device, wherein a film holding plate is arranged in the chassis, and a presser for pressing a filter membrane clamp into the film holding plate, a circular cutter located inside the presser and used to shear the filter membrane clamp in the film holding plate, and a push plate located inside the circular cutter are arranged in sequence directly above the film holding plate, the presser, the circular cutter and the push plate are driven to rise and fall by a driving mechanism, and the controlled end of the driving mechanism is connected to the output end of the controller; a circular leak hole matched with the circular cutter is provided on the film holding plate; a shredder mechanism for crushing the cut filter membrane is arranged below the film holding plate, and a discharge port capable of conveying the crushed filter membrane to a reaction device is arranged at the bottom of the shredder mechanism, and the controlled end of the shredder mechanism is connected to the output end of the controller.

[0008] To further optimize the technical solution, the shredding mechanism includes two rows of shredders arranged alternately and a shredding drive motor connected to the two rows of shredders through a drive assembly for driving the two rows of shredders to move relative to each other, and the controlled end of the shredding drive motor is connected to the output end of the controller.

[0009] To further optimize the technical solution, a paper feeding mechanism for transferring the cut filter membrane to the inside of the paper shredding mechanism is provided directly below the circular leakage hole of the membrane holding plate, and the controlled end of the paper feeding mechanism is connected to the output end of the controller.

[0010] To further optimize the technical solution, the paper feeding mechanism includes a paper feeding roller and a paper feeding drive motor connected to the paper feeding roller for driving the paper feeding roller to rotate, and a controlled end of the paper feeding drive motor is connected to an output end of the controller.

[0011] To further optimize the technical solution, a filter membrane holding groove is provided on the top of the membrane holding plate, which is arranged to penetrate from front to back and is used to hold the filter membrane clamp, and a circular leakage hole is provided on the bottom wall of the filter membrane holding groove.

[0012] To further optimize the technical solution, a paper discharge funnel for conveying the shredded filter membrane to the interior of the reaction device is also provided at the bottom of the discharge port of the paper shredding mechanism.

[0013] To further optimize the technical solution, an anti-static system for removing static electricity is provided on the outer wall of the paper discharge hopper, and a controlled end of the anti-static system is connected to the output end of the controller.

[0014] To further optimize the technical solution, the bottom end of the chassis is arranged on a moving mechanism for driving the entire device to move left and right, and the controlled end of the moving mechanism is connected to the output end of the controller.

[0015] Due to the adoption of the above technical scheme, the technical progress achieved by the present invention is as follows.

[0016] The present invention can realize continuous shearing of the filter membrane without manual supervision. By arranging a paper shredding mechanism under the membrane holding plate, the present invention can pulverize the filter membrane after being cut into a circle into uniform fragments that meet the standards, thereby improving the extraction efficiency of fluoride in the later stage. The pulverized filter membrane can be directly discharged into the reaction device from the discharge port without manual taking and placing, thus avoiding the influence of human factors.

[0017] The paper discharge funnel arranged at the bottom of the discharge port of the paper shredding mechanism of the present invention can conveniently ensure the transportation of the shredded filter membrane. The static electricity removal system arranged on the outer wall of the paper discharge funnel can eliminate the static electricity generated by the shredded filter membrane during transportation, so that the shredded filter membrane can fall into the reaction device smoothly, ensuring the normal extraction of fluoride.

[0018] The bottom end of the chassis of the present invention is arranged on the moving mechanism, which can drive the whole device to move left and right on the fluoride automatic measuring instrument, thereby realizing that the paper discharge funnel can move and align with the reaction device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention;

[0020] Figure 2 It is a rear view of the present invention;

[0021] Figure 3 is a side view of the present invention;

[0022] Figure 4 A top view of the present invention;

[0023] Figure 5 It is a cutaway view of the present invention;

[0024] Figure 6 It is a partially cutaway view of the present invention.

[0025] Among them: 1. chassis, 2. circular cutting knife, 21. middle template, 3. clamp, 31. bottom template, 34. slideway b, 35. connecting column, 4. driving mechanism, 41. motor, 42. connecting plate, 43. screw rod, 5. membrane holding plate, 51. filter membrane holding slot, 6. paper feeding mechanism, 61. paper feeding roller, 62. paper feeding drive motor, 7. paper shredding mechanism, 71. paper shredding knife, 72. paper shredding drive motor, 8. paper discharge funnel, 9. anti-static system, 10. limiter, 11. push template, 12. top template. DETAILED DESCRIPTION

[0026] The present invention will be further described in detail below with reference to specific embodiments.

[0027] A shearing device for an automatic fluoride measuring instrument, combined with Figures 1 to 6As shown, it includes a chassis 1, a film holding plate 5, a presser 3, a circular cutting knife 2, a push plate 11, a driving mechanism 4 and a paper shredding mechanism 7.

[0028] The chassis 1 is configured as a frame body, and is hollow inside. A film holding plate 5, a pressing device 3, a circular cutting knife 2 and a push plate 11 are arranged inside the chassis 1.

[0029] The membrane holding plate 5 is used to hold the pushed-in filter membrane clip, and a circular leak hole is provided on the membrane holding plate 5 to match the circular cutting knife 2 and allow the cut filter membrane to fall out. A filter membrane holding groove 51 is provided at the top of the membrane holding plate 5, and the filter membrane holding groove 51 is arranged through the front and back to hold the filter membrane clip, and the circular leak hole is provided on the bottom wall of the filter membrane holding groove 51.

[0030] The pressing device 3 is arranged just above the membrane holding plate 5, and is used to press the filter membrane clamp into the membrane holding plate 5. The pressing device 3 comprises a bottom template 31, and the bottom end of the bottom template 31 is arranged in a cylindrical shape, and is used to press the membrane clamp.

[0031] The circular cutter 2 is arranged just above the membrane holding plate 5, in a cylindrical shape, on the inner side of the sleeve of the pressing device 3, and is used to cut the filter membrane clip in the membrane holding plate 5. The circular cutter 2 is a circular cylindrical blade, and the circular cutter 2 is fixedly arranged at the lower part of the middle template 21. The circular cutter 2 can protrude from the bottom template 31, so that when the bottom template 31 clamps the filter membrane clip, the filter membrane on the filter membrane clip can be cut by the circular cutter 2.

[0032] The pusher template 11 is located inside the circular cutter 2 and is arranged just above the film holding plate 5, and is used to push the filter membrane cut by the circular cutter 2 downward to the paper feeding mechanism 6 arranged just below the film holding plate 5. The pusher template 11 includes a guide cylinder and a transverse spring steel sheet, and the top end of the guide cylinder is fixedly arranged on the top template 12.

[0033] Two slideways b34 are provided on the left and right inner walls of the chassis 1, and the two side walls of the bottom template 31, the middle template 21 and the top template 12 are slidably mounted on the two slideways b34 in sequence. A connecting column 35 is also connected between the bottom template 31, the middle template 21 and the top template 12. Reset springs are respectively provided between the bottom template 31 and the middle template 21, and between the middle template 21 and the top template 12.

[0034] The top of the pressing device 3, the circular cutter 2 and the pusher plate 11 are driven to rise and fall by the driving mechanism 4, and the controlled end of the driving mechanism 4 is connected to the output end of the controller. The driving mechanism 4 includes a motor 41, and a screw rod 43 is connected to the output shaft end of the motor 41. A connecting plate 42 is fixedly provided on the top plate 12. The connecting plate 42, the top plate 12 and the guide cylinder are respectively matched with the screw rod, and the circular cutter 2 and the pressing device 3 are driven to rise and fall when the screw rod of the motor 41 rotates.

[0035] The pressing device 3, the circular cutting knife 2 and the pushing plate 11 are arranged in sequence from the outside to the inside. During the membrane cutting process, the filter membrane clamp is pressed by the pressing device 3, and then the circular cutting knife 2 is used to cut the membrane into a circle, and then the pushing plate 11 pushes the cut membrane into the paper feeding mechanism 6.

[0036] The shredder mechanism 7 is arranged below the membrane holding plate 5, and is used for shredding the cut filter membrane. A discharge port is arranged at the bottom end of the shredder mechanism 7, and the discharge port can transport the shredded filter membrane into the reaction device. The controlled end of the shredder mechanism 7 is connected to the output end of the controller.

[0037] The shredding mechanism 7 includes two rows of shredding knives 71 arranged in an interlaced manner and a shredding driving motor 72 connected to the two rows of shredding knives 71 through a driving assembly. The shredding driving motor 72 is used to drive the two rows of shredding knives 71 to move relative to each other. The controlled end of the shredding driving motor 72 is connected to the output end of the controller. When the driving assembly drives the two rows of shredding knives 71 to move relative to each other, the shredding function is realized. The driving assembly can be driven in the form of a cam or a connecting rod, or in other forms, as long as the function of the two rows of shredding knives 71 moving relative to each other can be realized.

[0038] For example, the driving assembly can also be driven by a lead screw and a nut, that is, two paper shredding driving motors are provided, the output shaft of each paper shredding driving motor is respectively connected to a lead screw, and the two lead screws are respectively equipped with a lead nut, and each lead nut is fixedly connected to a row of paper shredding knives. The driving directions of the two paper shredding driving motors are opposite, thereby driving the two rows of paper shredding knives to move relative to each other.

[0039] A paper feeding mechanism 6 is also provided directly below the circular leakage hole of the film holding plate 5. The paper feeding mechanism 6 is used to transfer the cut filter membrane to the inside of the paper shredding mechanism 7. The controlled end of the paper feeding mechanism 6 is connected to the output end of the controller.

[0040] The paper feeding mechanism 6 includes a paper feeding roller 61 and a paper feeding drive motor 62 connected to the paper feeding roller 61 for driving the paper feeding roller 61 to rotate. The controlled end of the paper feeding drive motor 62 is connected to the output end of the controller. When the paper feeding drive motor 62 is in operation, it can drive the paper feeding roller 61 to rotate, and then transport the filter membrane falling on the paper feeding roller 61 to the inside of the paper shredding mechanism 7.

[0041] The bottom of the discharging port of the paper shredding mechanism 7 is also provided with a paper discharging funnel 8, which is used to transport the shredded filter membrane to the inside of the reaction device. The paper discharging funnel 8 is arranged in an inclined shape, and the internal cross section of the paper discharging funnel 8 decreases from top to bottom.

[0042] The sheared filter membrane will generate static electricity during the shearing process, causing the sheared filter membrane to be adsorbed on the cutter and inside the paper discharge funnel 8, affecting the subsequent extraction of fluoride. In order to prevent the above problems from occurring, the outer wall of the paper discharge funnel 8 of the present invention is provided with a static removal system 9 for removing static electricity, and the paper shredding mechanism 7 and the discharge port of the paper discharge funnel 8 are provided with an air supply system. The static electricity generated during the paper shredding process and the conveying process is eliminated by blowing ion wind through the static removal system 9, and the controlled end of the air supply system and the static removal device is connected to the output end of the controller.

[0043] The bottom end of the chassis 1 is arranged on a moving mechanism, and the moving mechanism is used to drive the device to move left and right as a whole, and the controlled end of the moving mechanism is connected to the output end of the controller. The moving mechanism is a lead screw drive mechanism, including a lead screw that is rotatably arranged on the fluoride automatic measuring instrument and a moving drive motor connected to one end of the lead screw. The lead screw is matched with the bottom end of the chassis 1, and can drive the device as a whole to move left and right on the fluoride automatic measuring instrument, thereby realizing that the paper discharge funnel 8 and the measuring system 56 can be moved to align with the reaction device.

[0044] A limiter 10 is arranged on the side wall of the bottom end of the chassis 1, and the output end of the limiter 10 is connected to the input end of the controller, thereby being able to limit the moving position of the device.

[0045] The actual working process of the present invention is as follows.

[0046] S1. The filter membrane clamp automatic pushing device pushes the sampled filter membrane clamp into the filter membrane holding slot 51 of the membrane holding plate 5.

[0047] S2, the controller controls the driving mechanism 4 to drive the pressing device 3, the circular cutter 2 and the push-out template 11 to move downward, and clamp and cut the filter membrane clamp. The controller controls the motor 41 to rotate, driving the pressing device 3, the circular cutter 2 and the push-out template 11 to move downward, and a filter membrane clamp holding position is formed between the bottom template 31 of the pressing device 3 and the filter membrane holding groove 51. At the same time, the circular cutter 2 cuts the filter membrane in the filter membrane clamp. The push-out template 11 is continuously controlled to move downward, and the push-out template 11 pushes the cut filter membrane through the circular leak hole to the paper feeding roller 61 of the paper feeding mechanism 6.

[0048] S3, the paper feeding drive motor 62 drives the paper feeding roller 61 to rotate, and the paper feeding roller 61 drives the cut filter membrane to be transported to the paper shredding mechanism 7 for shredding. The two rows of paper shredding knives 71 of the paper shredding mechanism 7 shred the filter membrane when they move relative to each other.

[0049] S4, the crushed filter membrane falls into the paper discharge funnel 8, and then falls into the reaction device from the paper discharge funnel 8 for extraction.

[0050] In step S4, the static electricity removal system 9 is set up to eliminate the static electricity generated by the crushed filter membrane during transportation, so that the crushed filter membrane can fall smoothly into the reaction device, ensuring the normal extraction of fluoride.

Claims

1. Shearing device for automatic fluoride analyzer, Features: The invention comprises a case (1) and a controller for controlling the overall operation of the device. A membrane holding plate (5) is arranged in the case (1). A pressing device (3) for pressing a membrane clamp into the membrane holding plate (5), a circular cutting knife (2) located inside the pressing device (3) and used for shearing the membrane clamp in the membrane holding plate (5), and a push plate (11) located inside the circular cutting knife (2) are arranged in sequence directly above the membrane holding plate (5). The pressing device (3), the circular cutting knife (2) and the push plate (11) are connected to the top of the pressing device (3), and the top of ... circular cutting knife (2). The end is driven to rise and fall by a driving mechanism (4), and the controlled end of the driving mechanism (4) is connected to the output end of the controller; a circular leak hole matched with the circular cutting knife (2) is provided on the film holding plate (5); a shredder mechanism (7) for shredding the cut filter membrane is provided below the film holding plate (5), and a discharge port for conveying the shredded filter membrane to the reaction device is provided at the bottom end of the shredder mechanism (7), and the controlled end of the shredder mechanism (7) is connected to the output end of the controller; The paper shredding mechanism (7) comprises two rows of paper shredding knives (71) arranged in a staggered manner and a paper shredding drive motor (72) connected to the two rows of paper shredding knives (71) via a drive assembly and used to drive the two rows of paper shredding knives (71) to move relative to each other, wherein a controlled end of the paper shredding drive motor (72) is connected to an output end of a controller; A paper feeding mechanism (6) for transferring the cut filter membrane to the inside of the paper shredding mechanism (7) is also provided directly below the circular leak hole of the film holding plate (5), and a controlled end of the paper feeding mechanism (6) is connected to an output end of the controller; A paper discharge funnel (8) for conveying the shredded filter membrane to the interior of the reaction device is also provided at the bottom of the discharge port of the paper shredding mechanism (7).

2. The shearing device for the fluoride automatic measuring instrument according to claim 1, Features: The paper feeding mechanism (6) comprises a paper feeding roller (61) and a paper feeding drive motor (62) connected to the paper feeding roller (61) and used for driving the paper feeding roller (61) to rotate, wherein the controlled end of the paper feeding drive motor (62) is connected to the output end of the controller.

3. The shearing device for the fluoride automatic measuring instrument according to claim 1, Features: The top of the membrane holding plate (5) is provided with a membrane holding groove (51) which is arranged to penetrate from front to back and is used to hold the membrane clip, and a circular leak hole is provided on the bottom wall of the membrane holding groove (51).

4. The shearing device for the fluoride automatic measuring instrument according to claim 1, Features: An anti-static system (9) for removing static electricity is arranged on the outer side wall of the paper discharge funnel (8), and a controlled end of the anti-static system (9) is connected to an output end of a controller.

5. The shearing device for the fluoride automatic measuring instrument according to claim 1, Features: The bottom end of the chassis (1) is arranged on a moving mechanism for driving the device to move left and right as a whole, and the controlled end of the moving mechanism is connected to the output end of the controller.

Images