Automatic filter paper cutting device

Abstract

The utility model relates to an automatic filter paper cutting device which comprises a conveying part, a clamping part and a tray. The conveying part comprises a rack, a rubber roller part and a driving roller; a shearing mechanism is arranged in the middle of the rack, the rubber roller part and the driving rollers are arranged on two sides of the shearing mechanism, and the right driving roller is connected with a motor; the tray is driven by a motor B and can move back and forth between the shearing mechanism and the clamping part; the clamping part grasps the tray through the long connecting rod and the short connecting rod; firstly, filter paper needing to be cut is wound and inserted into the cutting mechanism through the driving roller and the rubber roller part from right to left, the driving motor and the cutting mechanism are started, and the filter paper continuously and automatically passes through the driving roller and the rubber roller part to be cut below the cutting mechanism; meanwhile, the motor B is started, and the tray bearing the filter paper moves to the clamping part. The utility model has the benefits that the working efficiency is improved, the transportation is safe, and the installation and the maintenance are convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic cutting, in particular to an automatic filter paper cutting device. Background Art

[0002] Currently in chemical laboratories, filter paper sheets used for filtration have higher elasticity and are not easy to break. In order to meet the shearing accuracy of the filter paper sheets, a cutting device suitable for the laboratory is needed. The methods of cutting paper sheets currently used in the market are mainly divided into scissors cutting and punching cutting. Scissors cutting mainly uses the principle of leverage to convert the applied force into shear force at a certain point, but it cannot accurately cut the filter paper into the required shape, so punching cutting is generally used.

[0003] However, the cylindrical filter paper is usually installed manually and then cut by a punch shearing machine. After cutting, the next piece is manually loaded again. The process is cumbersome and the work efficiency is relatively low. There is no special transportation device for the cut filter paper, which makes it easy for excess moisture to be absorbed during the transfer of the filter paper, causing pollution. At the same time, the filter paper may be wrinkled during cutting, resulting in unqualified cut filter paper. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art and provide an automatic filter paper cutting device which improves work efficiency, ensures safe transportation and is easy to install and maintain.

[0005] The purpose of the utility model is achieved through the following technical solutions: an automatic filter paper cutting device, including a shearing mechanism; the shearing mechanism is installed on a base through a bracket, and is characterized in that it also includes a conveying part, a clamping part, and a tray;

[0006] The conveying part includes a frame, a rubber roller part and a driving roller; a shearing mechanism is arranged in the middle of the frame, the rubber roller part and the driving roller are symmetrically arranged on both sides of the shearing mechanism, and the driving roller on the right side is connected to the driving motor;

[0007] The tray is arranged on the frame through a long guide rail, and driven by a motor B, the tray can move back and forth between the shearing mechanism and the clamping part;

[0008] The clamping part comprises a long connecting rod and a short connecting rod; the clamping part uses a driving mechanism to make the long connecting rod and the short connecting rod together form a clamping claw structure to grasp the tray containing the filter paper;

[0009] First, the filter paper to be cut is wound from right to left through the driving roller and the rubber roller part and inserted into the shearing mechanism, and the driving motor and the shearing mechanism are started. The filter paper is continuously and automatically sheared under the shearing mechanism through the driving roller and the rubber roller part; at the same time, the motor B is started, and the tray receiving the filter paper moves to the bottom of the clamping part.

[0010] As a preferred technical solution of the present application, the rubber roller unit includes a short fixing frame and a rubber roller support; the two rubber roller units on the same side are symmetrically arranged, the upper part of the rubber roller unit is a short fixing frame, on which a rubber roller A is passed, and the lower part is arranged as a rubber roller support, in which a rubber roller B is passed, and the filter paper is arranged from right to left in the drive roller-rubber roller unit-shearing mechanism-rubber roller unit-drive roller.

[0011] As a preferred technical solution of the present application, pulleys are provided on both sides of the rubber roller support so that the rubber roller B can move up and down along the edge of the frame in the rubber roller frame. When the filter paper is installed, the filter paper is tensioned during stamping and shearing by moving the rubber roller B up and down.

[0012] As a preferred technical solution of the present application, the clamping part includes a lifting screw, a movable triangular seat and a fixed triangular seat;

[0013] The lifting screw is driven by a lifting motor, and a main shaft runs through a moving platform arranged in the lifting screw;

[0014] The main shaft is provided with a movable triangular seat and a fixed triangular seat from top to bottom, a long connecting rod is hinged on the movable triangular seat, a short connecting rod is hinged on the fixed triangular seat, and the long connecting rod is connected to the tail of the short connecting rod;

[0015] When the movable triangular seat is moved downward, since the fixed triangular seat is fixed to the main shaft, the long connecting rod drives the short connecting rod to open outward to form a clamping claw structure; when the movable triangular seat is moved upward, the clamping claw structure is tightened inward to clamp the tray.

[0016] As a preferred technical solution of the present application, the cam is arranged above the movable triangle seat, the cam is rotated by the motor A, and the large diameter end of the cam pushes the movable triangle seat downward to open the hinged long connecting rod, and opens synchronously with the short connecting rod electrically connected to it.

[0017] As a preferred technical solution of the present application, the spring is arranged between the movable triangular seat and the fixed triangular seat. When the cam rotates so that its small diameter end faces the movable triangular seat, the movable triangular seat can move upward due to the action of the spring.

[0018] The utility model has the following advantages:

[0019] (1) Improve the efficiency of filter paper cutting;

[0020] At present, filter paper is usually installed manually into a punching and shearing device for shearing. After a batch of filter paper is sheared, it is installed manually again. The whole process is time-consuming and labor-intensive, and the shearing efficiency is very low. The automatic filter paper cutting device designed in this scheme is equipped with a driving roller and a rubber roller part on both sides of the punching and shearing mechanism. The driving roller can be rotated by a motor to unfold the filter paper to be sheared in the shearing mechanism through the rubber roller part, so that the filter paper can be continuously and automatically transported to the shearing mechanism for punching and shearing, thereby realizing the automation of the device, thereby improving the shearing efficiency and saving time and effort.

[0021] (2) The structure is simple, easy to operate, and convenient to install and maintain;

[0022] In this solution, the shearing mechanism is installed in the center position, and the driving roller and the rubber roller part are symmetrically arranged on the frame around the shearing mechanism. The mechanical structure in the device is screwed to the frame through the triangular frame mounting seat, and the structure is stable and simple; the structure of the clamping part is also relatively simple, and the height is adjusted by controlling the up and down movement of the clamping body through the lead screw, and the gripping is achieved by the clamping claw composed of the cam and the connecting rod. The cam rotates and applies force on the movable triangular seat through its large diameter end to open the connecting rod, and then the movable triangular seat is raised by the spring arranged between the two triangular seats, and the connecting rod is retracted to clamp the pallet, which is simple and easy to operate;

[0023] (3) The filter paper is transported quickly and safely;

[0024] The tray designed in this scheme cooperates with the long guide rail, so that the cut filter paper directly enters the tray, and then is transported to the clamping part by the guide rail and transferred to the filtering device. The whole process does not require manual operation and is very fast, avoiding contamination of the filter paper by moisture in the air during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model from the first perspective;

[0026] Figure 2 This is a schematic diagram of the structure of the utility model from a frontal perspective;

[0027] Figure 3 This is a schematic diagram of the structure of the utility model from a top view;

[0028] Figure 4 This is a schematic diagram of the structure of the utility model from a first-view perspective after the base and the support frame are removed;

[0029] Figure 5 This is a structural schematic diagram of the cutting part and the clamping part of the utility model from a front view perspective;

[0030] Figure 6It is a structural schematic diagram of the clamping part and the tray of the utility model from a front view perspective;

[0031] Figure 7 It is a structural schematic diagram of the first viewing angle of the rubber roller part of the utility model which is symmetrical on the same side;

[0032] Figure 8 It is a structural schematic diagram of the first viewing angle of the rubber roller part of the utility model after the rubber roller frame is removed;

[0033] Fig. 9 This is a structural schematic diagram of the clamping part of the utility model from a first viewing angle;

[0034] Fig.10 It is a structural schematic diagram of the clamping claw structure of the clamping part of the utility model from a side view;

[0035] In the figure: 1-base, 2-support frame, 3-top frame, 4-bottom frame, 5-shearing mechanism, 6-power unit, 7-rubber roller frame, 8-short fixed frame, 9-rubber roller A, 10-rubber roller support, 11-rubber roller B, 12-pulley, 13-drive roller, 14-drive motor, 15-bracket, 16-gripping platform, 17-vertical bracket, 18-lifting motor, 19-coupling, 20-lifting screw, 21-vertical bar, 22-connecting block, 23-moving platform, 24-triangle frame mounting seat, 25-spindle, 26-mounting plate, 27-motor A, 28-cam, 29-movable triangle seat, 30-fixed triangle seat, 31-long connecting rod, 32-short connecting rod, 33-hinged member, 34-spring, 35-tray, 36-guide screw, 37-sliding seat, 38-motor B, 39-guide bottom plate. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0037] It should be noted that the directions or positional relationships indicated by "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when in use, or are the directions or positional relationships commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0039] Therefore, based on the above issues, see Figure 1 The utility model proposes an automatic filter paper cutting device to solve the problem.

[0040] (Example 1)

[0041] See also Figures 1 to 10 , an automatic filter paper cutting device proposed in this embodiment includes a base 1, a cutting part, a conveying part, a clamping part, and a tray 35;

[0042] Among them, see Figure 1 and Figure 5 The cutting part includes a cutting mechanism 5 and a bracket 15; the bracket 15 is arranged on the base 1 and the cutting mechanism 5 is installed on the bracket 15;

[0043] Among them, see Figure 1 to Figure 4 The conveying part includes a frame, a driving roller 13, and a rubber roller part; the frame is arranged on the base 1, and roller shafts are arranged on the left and right sides of the shearing mechanism 5 on the frame, and the driving roller 13 is rotatably arranged on the roller shaft, and the roller shaft on the right side is connected to the driving motor 14;

[0044] Among them, see Figure 4 and Figure 8 Two rubber roller frames 7 are symmetrically arranged on the frame, and a rubber roller part is arranged in the rubber roller frame 7; the rubber roller part includes a rubber roller support 10 and a short fixing frame 8; the short fixing frame 8 is symmetrically arranged in the rubber roller frame 7, and a rubber roller A9 is inserted in the short fixing frame 8, and the rubber roller support 10 is arranged below the short fixing frame 8, and pulleys 12 are arranged on both sides of the rubber roller support 10 to slide up and down along the side of the rubber roller frame 7, and a rubber roller B11 is inserted in the rubber roller support 10, and the rubber roller B11 can be driven by the rubber roller support 10 to move up and down along the frame;

[0045] Among them, see Figure 5 and Fig. 9 A clamping part is installed beside the frame of the shearing mechanism 5, and the clamping part includes a lifting screw 20, a moving platform 23, a movable triangular seat 29, and a fixed triangular seat 30; the lifting screw 20 is arranged on the clamping platform 16 and a lifting motor 18 is installed on the top of the lifting screw 20, and the moving platform 23 is movably sleeved on the lifting screw 20, and a main shaft 25 is passed through the moving platform 23, and a movable triangular seat 29 and a fixed triangular seat 30 are passed through the main shaft 25;

[0046] Among them, see Figure 5 The movable triangle seat 29 is movably arranged below the moving platform 23, and the upper surface of the movable triangle seat 29 is in contact with the cam 28, and the movable triangle seat 29 is vertically hinged downward with a plurality of long connecting rods 31;

[0047] Among them, see Fig.10The fixed triangular seat 30 is fixedly arranged below the movable triangular seat 29 and is separated by a certain distance. The movable triangular seat 29 is connected to the fixed triangular seat 30 through a spring 34, and a plurality of short connecting rods 32 are hinged on the lower surface of the fixed triangular seat 30, and the tail of each short connecting rod 32 is connected to the tail of the long connecting rod 31;

[0048] Among them, see Figure 5 and Figure 6 A long guide rail is provided below the tray 35, and the long guide rail is provided on the frame, and the tray 35 can move along the front-rear direction on the long guide rail, so that the tray 35 can move back and forth below the clamping part and the cutting mechanism to transport the filter paper.

[0049] When starting work, the cylindrical filter paper to be cut is first unfolded through the driving roller 13 and the rubber roller part, and the filter paper is transported to the shearing mechanism 5 for stamping and shearing, and the driving motor 14 is started. Since the driving roller 13 moves up and down in the frame, the filter paper is driven to be tightened, which is convenient for cutting; when the filter paper is cut, the tray 35 is moved to the bottom of the shearing mechanism 5 through the guide rail platform, and the cut filter paper disc is received on the tray 35 and then moved to the bottom of the clamping part through the guide rail, and the lifting motor 18 is started to move the moving platform 23 down to a suitable position, and then the movable triangle seat 29 is actuated by rotating the cam 28, and the tray 35 is clamped by the long connecting rod 31 and the short connecting rod 32 and moved to the filtering device for filtering.

[0050] At present, due to the need to realize automation and unmanned process operation of the filtration process in chemical laboratories, the filter paper made of special materials (with higher elasticity and not easy to break) is cut to a suitable size before filtering. Scissors cutting and punching cutting are usually used on the market, but there is currently no punching cutting device suitable for automatic cutting in laboratories, and it needs to be automatically transported to the filtration device after cutting; this scheme designs an automatic filter paper cutting device, which can realize the entire cutting-transportation to the filtration device process at one time, and the device has high stability and work efficiency; First, the cylindrical filter paper is manually wrapped around the driving roller 13 and the rubber roller part at the left and right ends. The unfolded part of the filter paper is pressed and sheared against the shearing mechanism 5, and the filter paper is transported by the motor-driven roller 13, which is efficient and fast. The rubber roller part is a fixed rubber roller and a movable rubber roller that cooperate to tighten the filter paper to avoid wrinkles during shearing. The filter paper is then transported and grabbed for filtration through the cooperation of the tray 35 and the clamping part arranged below. The utility model has a compact structure and is easy to install and disassemble. The shearing-transporting process of the filter paper is fast and safe, and will not be contaminated by air or moisture.

[0051] In this embodiment, refer to Figure 1As for the design of the base 1, the base 1 is a rectangular long board, and supporting feet are provided at the four top corners below the long board to play a supporting role; a supporting frame 2 is arranged on the base 1, and the supporting frame 2 is a rectangular frame, and the two side edges of the supporting frame 2 are respectively connected to the two side edges of the upper layer of the frame, covering the shearing mechanism 5 and the clamping part in the middle, which plays a role of protecting and supporting the device.

[0052] In this embodiment, refer to Figure 2-Figure 3 As for the design of the transport part, the frame includes a top frame 3 and a bottom frame 4; there is a certain space between the top frame 3 and the bottom frame 4 and the two are connected by a plurality of pillars, and the pillars are connected to the top frame 3 and the bottom frame 4 by mounting screws; the top frame 3 and the bottom frame 4 form a shape similar to a convex character and are symmetrically arranged, and a cube frame is formed by the top frame 3, the bottom frame 4 and the pillars in the center of the frame, and a shearing mechanism 5 is arranged in the notch of the cube frame; two rubber roller frames 7 are respectively installed in the left and right side frames of the cube frame (symmetrically arranged on the left and right), and the two rubber roller frames 7 on the same side are also symmetrically arranged, and the upper and lower surfaces of the rubber roller frames 7 are respectively aligned with the top frame 3 and the bottom frame. 4 is connected, a short fixing frame 8 is installed on the upper part of the rubber roller frame 7, the center of the short fixing frame 8 is opened, and a rubber roller A9 is horizontally penetrated in the short fixing frame 8, a rubber roller support 10 is arranged at the lower part of the rubber roller frame 7, and a rubber roller B11 is also penetrated in the rubber roller support 10, and pulleys 12 are opened on both sides of the rubber roller support 10, which can slide with the two sides of the rubber roller frame 7 - that is, the rubber roller B11 can be driven to move up and down along the rubber roller frame 7; driving rollers 13 are arranged on the left and right sides of the cube frame, a roller shaft is penetrated in the driving roller 13, and a driving motor 14 is connected to one end of the roller shaft on the right side, and the driving motor 14 is installed on the top frame 3.

[0053] Furthermore, the extended shaft end of the rubber roller A9 fixed in the short fixing frame 8 is connected to the extended shaft end of the rubber roller B11 arranged in the movable rubber roller support 10 through a tension spring. The tension spring can achieve further tensioning after the filter paper is installed into the rubber roller part, so that the filter paper remains tensioned during stamping and shearing, thereby avoiding wrinkles when the filter paper is sheared.

[0054] It should be noted that, see Figure 4 and Figure 5 As for the cutting part, the shearing mechanism 5 is a prior art, which adopts a punching and shearing mechanism, and its power unit 6 is arranged on the top frame 3. A bracket 15 is arranged at the lower end of the shearing mechanism 5 to support the shearing mechanism 5 and adjust it to a suitable height to facilitate the installation of the filter paper.

[0055] In this embodiment, refer to Figure 5-Figure 6For the clamping part, a clamping platform 16 is arranged on the top frame 3 on the left side of the shearing mechanism 5, and a vertical bracket 1715 is vertically arranged on the clamping platform 16. A lifting motor 18 is installed on the top of the vertical bracket 1715. The motor shaft of the lifting motor 18 is connected to the lifting screw 20 through a coupling 19. Two vertical bars 21 (located on both sides of the lifting screw 20) are also connected between the base 1 of the lifting motor 18 and the clamping platform 16, which play the role of a supporting and stabilizing device. The rod 21 and the lifting screw 20 are connected by a connecting block 22. Three holes are opened on the connecting block 22, which can be inserted into the vertical rod 21 and the lifting screw 20 to prevent the screw from shifting or deflecting when the lifting motor 18 rotates to rotate the lifting screw 20; below the connecting block 22, a moving platform 23 is set to pass through the vertical rod 21 and the lifting screw 20. The moving platform 23 is threadedly matched with the lifting screw 20. When the lifting screw 20 rotates, the moving platform 23 can move up and down along the lifting screw 20.

[0056] In this embodiment, refer to Fig. 9 and Fig.10 The side of the moving platform 23 is connected to a triangular frame mounting seat 24 by screws. A vertical downward main shaft 25 is set in the center of the triangular frame mounting seat 24. The movable triangular seat 29 is movably set on the main shaft 25. At the same time, the fixed triangular seat 30 is fixedly set on the main shaft 25. A mounting plate 26 is vertically opened on the lower surface of the triangular frame mounting seat 24. A motor A27 is set in the mounting plate 26, and a cam 28 is connected to the motor shaft of the motor A27. The cam 28 is irregular and similar to an ellipse. The circle with a smaller radius and the ellipse with a larger radius constitute its edge, so that the upper surface of the movable triangular seat 29 can be abutted against the small diameter end of the cam 28. The lower surface of the movable triangular seat 29 is hinged with three long connecting rods 31, and the three long connecting rods 31 are arranged at equal intervals in a circle to form a structure similar to a clamp; the fixed triangular seat 30 is located below the movable triangular seat 29 and is hinged with three short connecting rods 32, which are arranged at equal intervals in a circle, and the tail of each short connecting rod 32 is connected to the tail of the long connecting rod 31.

[0057] Furthermore, the top and tail of the long connecting rod 31 and the short connecting rod 32 are provided with grooves inwardly, and through holes are provided on both sides of the grooves. The long connecting rod 31 and the short connecting rod 32 are inserted into and matched with the pin holes provided on the triangular plates A and B through the grooves at the top and are movably hinged by screws; the tails of the long connecting rod 31 and the short connecting rod 32 are also connected to the hinge 33 through the grooves.

[0058] Furthermore, a spring 34 is arranged between the lower surface of the movable triangular seat 29 and the upper surface of the fixed triangular seat 30. When the motor A27 is started, the motor A27 rotates to drive the cam 28 connected thereto to rotate, pushing the movable triangular seat 29 downward, and because the long connecting rod 31 is connected to the tail end of the short connecting rod 32 and the fixed triangular seat 30 is fixedly arranged on the main shaft 25, the long connecting rod 31 and the short connecting rod 32 will open synchronously to form a claw-like structure, contacting the tray 35; then when the cam 28 is rotated so that its small diameter end faces the movable triangular seat 29, the movable triangular seat 29 loses the downward force, and due to the restoring action of the spring 34, the movable triangular seat 29 moves upward, so that the long connecting rod 31 drives the short connecting rod 32 to shorten the connecting rod 32 and retract the tray 35, and then the movable platform 23 is moved upward by the lifting motor 18 to lift the tray 35 and transfer it to the filtering device for filtration.

[0059] In this embodiment, refer to Figure 5 and Figure 6 The long guide rail includes a guide rail lead screw 36, a sliding seat 37, a motor B38, and a guide rail base plate 39; the long guide rail is arranged above the base frame 4 of the frame and is perpendicular to the right side horizontal bar of the base frame 4. The guide rail base plate 39 is fixed to the base frame 4 by screws. A track is provided on the guide rail base plate 39. A connecting block 22 is provided at one end of the guide rail base plate 39. Three long axes are provided to penetrate the connecting block 22 and the guide rail base plate 39. The middle long axis is a lead screw B with an external thread, and one end of the lead screw B is connected to the motor B38 through a coupling 19. The other end of the lead screw is threadedly connected to the sliding seat 37. The bottom of the sliding seat 37 is adapted to the track of the guide rail base plate 39. When the motor B38 is started, the lead screw B rotates, so that the sliding seat 37 slides along the guide rail base plate 39 and can move to the bottom of the shearing mechanism 5 and the clamping part.

[0060] In this embodiment, the participants Figure 6 The tray 35 is detachably mounted on the sliding seat 37. The tray 35 is disc-shaped and can hold the cut filter paper. By starting the motor B38, the sliding seat 37 moves on the track to the filter paper outlet below the shearing mechanism 5. After the punched and sheared filter paper falls into the tray 35, the tray 35 moves to the bottom of the clamping part, and the long connecting rod 31 and the short connecting rod 32 cooperate to clamp the tray 35 and lift it to the filtering device.

[0061] It should be noted that a sensor is installed at the front end of the tray 35 and a sensor is installed on the guide rail bottom plate 39. The sensor can transmit the displacement model of the tray 35 in real time for accurate positioning. The sensors are all existing technologies.

[0062] The utility model discloses an automatic filter paper cutting device. When working, firstly, a cylindrical filter paper is manually sleeved on a driving roller 13, and one end of the cylindrical filter paper is pulled out to be wound around a rubber roller A9 and a rubber roller B11 of a rubber roller part, and then passes through a shearing opening in a shearing mechanism 5, and then is similarly wound around the other side rubber roller part and the driving roller 13, so that the filter paper is unfolded in the device; the rubber roller part comprises a fixed rubber roller A9 and a movable rubber roller B11, and since the rubber roller B11 can move up and down, the filter paper can be tightly wrapped to avoid wrinkles; after starting a driving motor 14 and a shearing mechanism 5, the filter paper can continuously pass through the driving roller 13 and the rubber roller part, and is sheared by the shearing mechanism 5, so that the automatic shearing of the filter paper is realized. , which improves the working efficiency; then, by starting the motor B38, the tray 35 is moved to the filter paper outlet of the shearing mechanism 5 via the sliding seat 37, and the filter paper disc falls into the tray 35 and then moves to the clamping part, and the lifting motor 18 is started to move the movable platform 23 down to a suitable height, and then the motor A27 is started, and the cam 28 is used to apply force to open the clamping claw structure, and then the cam 28 rotates to the small diameter end to align with the movable triangular seat 29. Due to the action of the spring 34, the clamping claw is retracted to grasp the tray 35, and finally the lifting motor 18 is used to move the movable platform 23 upward - that is, the tray 35 moves upward. The structure is relatively ingenious and the whole device is stable and safe during operation. Finally, the filter paper is moved to the filtering device for filtering.

[0063] The filter paper automatic cutting device designed in this scheme can realize the automatic cutting and transportation of filter paper that needs to be filtered in the chemical laboratory. At present, there is no stamping cutting device used in the chemical laboratory to realize the automatic cutting of filter paper. Usually, the cylindrical filter paper is manually installed into the cutting machine, and then taken out after cutting and a new cylindrical filter paper is put in. The process is cumbersome and the work efficiency is relatively low. There is no special conveying device for conveying the cut filter paper, which is easy to cause air or water pollution. The scheme arranges a driving roller 13 and a rubber roller part on both sides of the shearing mechanism 5 to cooperate to unfold the cylindrical filter paper, and through the driving roller 13, the cylindrical filter paper is unfolded and the cylindrical filter paper is conveyed to the cutting machine. The motor 14 rotates to rotate the driving roller 13, so that the filter paper can be continuously and automatically transported to the shearing mechanism 5 for shearing, thereby realizing the automatic transportation of the device, improving work efficiency and making the working process stable and fast, without wasting time and effort; when the cut filter paper is clamped, the lifting screw 20 is used to realize the up and down movement of the clamping part, and the cam 28 structure and the spring 34 and the clamping claw structure are used to realize the automatic clamping of the clamping part, which has a simple structure and is easy to operate; the cutting device designed in this scheme has a simple structure, is easy to install and maintain, and the operation process is stable and safe, and the filter paper will not be contaminated by air or moisture.

[0064] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An automatic filter paper cutting device, comprising a cutting mechanism (5); the cutting mechanism (5) is mounted on a base (1) via a bracket (15), characterized in that: It also includes a transporting portion, a clamping portion, and a tray (35); The conveying part comprises a frame, a rubber roller part and a driving roller (13); a shearing mechanism (5) is arranged in the middle of the frame, the rubber roller part and the driving roller (13) are symmetrically arranged on both sides of the shearing mechanism (5), and the driving roller (13) on the right side is connected to a driving motor (14); The tray (35) is arranged on the frame via a long guide rail and driven by a motor B (38), so that the tray (35) can move back and forth between the shearing mechanism (5) and the clamping part; The clamping part comprises a long connecting rod (31) and a short connecting rod (32); the clamping part uses a driving mechanism to make the long connecting rod (31) and the short connecting rod (32) together form a clamping claw structure to grasp the tray (35) containing the filter paper; First, the filter paper to be cut is wound from right to left through the driving roller (13) and the rubber roller part and inserted into the shearing mechanism (5), and the driving motor (14) and the shearing mechanism (5) are started, and the filter paper is continuously and automatically sheared below the shearing mechanism (5) through the driving roller (13) and the rubber roller part; at the same time, the motor B (38) is started, and the tray (35) receiving the filter paper moves to the bottom of the clamping part.

2. The automatic filter paper cutting device according to claim 1, characterized in that: The rubber roller part comprises a short fixing frame (8) and a rubber roller support (10); the two rubber roller parts on the same side are symmetrically arranged, the upper part of the rubber roller part is a short fixing frame (8) through which a rubber roller A (9) is passed, and the lower part is arranged as a rubber roller support (10), in which a rubber roller B (11) is passed, and the filter paper is arranged from right to left in the driving roller (13) - rubber roller part - shearing mechanism (5) - rubber roller part - driving roller (13).

3. The automatic filter paper cutting device according to claim 2, characterized in that: Pulleys (12) are provided on both sides of the rubber roller support (10), so that the rubber roller B (11) can move up and down along the edge of the rubber roller frame (7). When the filter paper is installed, the filter paper is tensioned during punching and shearing by moving the rubber roller B (11) up and down.

4. The automatic filter paper cutting device according to claim 1, characterized in that: The clamping part comprises a lifting screw (20), a movable triangular seat (29) and a fixed triangular seat (30); The lifting screw (20) is driven by a lifting motor (18), and a main shaft (25) passes through a moving platform (23) arranged in the lifting screw (20); The main shaft (25) is provided with a movable triangular seat (29) and a fixed triangular seat (30) from top to bottom, a long connecting rod (31) is hinged on the movable triangular seat (29), a short connecting rod (32) is hinged on the fixed triangular seat (30), and the tails of the long connecting rod (31) and the short connecting rod (32) are connected; When the movable triangular seat (29) is moved downward, since the fixed triangular seat (30) is fixed to the main shaft (25), the long connecting rod (31) drives the short connecting rod (32) to open outward to form a clamping claw structure; when the movable triangular seat is moved upward, the clamping claw structure is tightened inward to clamp the tray (35).

5. The automatic filter paper cutting device according to claim 1, characterized in that: The invention also comprises a cam (28) arranged above the movable triangular seat (29), the cam (28) is rotated by a motor A (27), and the large diameter end of the cam (28) pushes the movable triangular seat (29) downward to open the hinged long connecting rod (31), and opens synchronously with the short connecting rod (32) electrically connected thereto.

6. The automatic filter paper cutting device according to claim 1, characterized in that: The invention also includes a spring (34) arranged between the movable triangular seat (29) and the fixed triangular seat (30). When the cam (28) rotates so that its small diameter end faces the movable triangular seat (29), the movable triangular seat (29) can be moved upward due to the action of the spring (34).

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