Geological mineral exploration sample storage device

Abstract

The geological mineral exploration sample storage device comprises a cabinet body, and a movable support is installed at the bottom of the cabinet body; the two sets of mounting frames are symmetrically and fixedly connected into the cabinet body, a plurality of rows of lifting frames are fixedly connected to the mounting frames at equal intervals, the material boxes are placed on the lifting frames, and positioning assemblies are installed on the lifting frames; the three-dimensional moving frame is installed in the cabinet body, and a taking and placing assembly is installed on the three-dimensional moving frame; the environment monitoring system is mounted in the cabinet body; the control system comprises a controller and an input device, and the controller is electrically connected with the input device; wherein cabinet doors are installed on the front face and the rear face of the cabinet body respectively, a window is formed in the front side of the cabinet body, a closing plate is installed on the window, and an electric control lock is installed on the closing plate and is in signal connection with the controller. The control system is matched with the three-dimensional moving frame, so that the samples can be quickly positioned and stored, and the difficulty of sample sorting is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of geological sample storage, and in particular to a geological and mineral exploration sample storage device. Background Art

[0002] In geological survey operations, the collection of geological samples is extremely critical. Collecting geological samples is not only convenient for subsequent deeper research, but also can provide people with good display samples. There are many kinds of geological samples, among which solids are the most common, such as rocks of various shapes and colors. Preserving relatively intact rocks is more conducive to the study of geological structures. The current device structure for storing geological samples is relatively simple, and generally uses traditional boxes for storage. During transportation, the rock samples inside are prone to collision with each other, which destroys the integrity of the samples and is not conducive to better use of rock samples for geological research.

[0003] Based on the above technical problems, the present invention provides a geological and mineral exploration sample storage device. Summary of the invention

[0004] The purpose of the present invention is to provide a geological and mineral exploration sample storage device to solve the problems existing in the prior art.

[0005] To achieve the above object, the present invention provides the following solution: The present invention provides a geological and mineral exploration sample storage device, comprising:

[0006] A cabinet body, wherein a movable support is installed at the bottom of the cabinet body;

[0007] Mounting frames, wherein two groups of mounting frames are provided, and the two groups of mounting frames are symmetrically fixedly connected to the cabinet body, and a plurality of rows of lifting frames are fixedly connected to the mounting frames at equal intervals, and the material boxes are placed on the lifting frames, and the lifting frames are installed with positioning components;

[0008] Baffles, two groups of baffles are symmetrically arranged on the front side of the lifting frame, the two groups of baffles are slidably matched with the lifting frame, the baffles are limitedly matched with the material box, the front of the opposite sides of the material box are respectively fixedly connected with control cylinders, the control cylinders are horizontally arranged, and the ends of the control cylinders are fixedly connected with the tops of the baffles;

[0009] A three-dimensional mobile frame, the three-dimensional mobile frame is installed in the cabinet, and a pick-and-place component is installed on the three-dimensional mobile frame;

[0010] An environmental monitoring system, wherein the environmental monitoring system is installed in the cabinet;

[0011] A control system, the control system comprising a controller and an input device, the controller being installed inside the cabinet, the input device being installed on the outer wall of the cabinet, the controller being electrically connected to the input device, and the three-dimensional moving frame being electrically connected to the controller;

[0012] Wherein, cabinet doors are installed on the front and back of the cabinet respectively, a window is opened on the front side of the cabinet, a closing plate is installed on the window, an electric lock is installed on the closing plate, and the electric lock is connected to the controller signal.

[0013] According to the geological and mineral exploration sample storage device provided by the present invention, the three-dimensional movable frame includes a Y-axis linear motor, the Y-axis linear motor is installed in the middle of the bottom surface of the cabinet, and is arranged parallel to the width direction of the cabinet with the Y-axis linear motor, the Y-axis linear motor is installed on the Z-axis linear motor, the Z-axis linear motor is installed on the support plate, the X-axis linear motor is installed on the support plate, the X-axis linear motor is installed on the lifting plate, and the pick-and-place assembly is installed on the lifting plate.

[0014] According to the geological and mineral exploration sample storage device provided by the present invention, the picking and placing assembly includes a pad, the bottom surface of the pad is coaxially fixedly connected with a support ring, the support ring is rotatably connected to the top surface of the lifting plate, and the support ring and the lifting plate are coaxially arranged, the outer wall of the support ring is provided with a tooth groove, the top surface of the lifting plate is fixedly connected with a first drive motor, the output shaft of the first drive motor is fixedly connected with a drive gear, the drive gear is meshed with the support ring, and the center position of the pad is provided with an installation groove, and the transmission assembly is installed in the installation groove.

[0015] According to the geological and mineral exploration sample storage device provided by the present invention, the transmission component includes a plurality of transmission gear rollers arranged in parallel, the transmission gear rollers are rotatably connected in the installation groove through an installation shaft, and a gap is provided between adjacent transmission gear rollers. The bottom surface of the pad is fixedly connected to a second drive motor through a mounting frame, and a gap is provided between the second drive motor and the pad. The output shaft of the second drive motor is fixedly connected to a drive gear roller, and the drive gear roller is meshed with one of the transmission gear rollers.

[0016] According to the geological and mineral exploration sample storage device provided by the present invention, the positioning assembly includes a first positioning plate and a second positioning plate. The cross-sectional shapes of the first positioning plate and the second positioning plate are both right trapezoids. The inclined surface of the first positioning plate is slidably engaged with the inclined surface of the second positioning plate. Telescopic rods are fixedly connected to the side surfaces of the first positioning plate and the second positioning plate respectively. The first positioning plate is fixedly connected to the bottom surface of the lifting frame through the telescopic rod, and the second positioning plate is fixedly connected to the side surface of the lifting frame through the telescopic rod. Compression springs are fixedly connected between the first positioning plate and the bottom surface of the lifting frame, and between the second positioning plate and the side surface of the lifting frame respectively. The compression springs are sleeved on the telescopic rods. Both the first positioning plate and the second positioning plate are in contact with the material box.

[0017] According to the geological and mineral exploration sample storage device provided by the present invention, a chute is provided on the inclined surface of the first positioning plate, and a slider is fixedly connected to the inclined surface of the second positioning plate. The slider is slidably connected in the chute.

[0018] According to the geological and mineral exploration sample storage device provided by the present invention, a dehumidifier is installed in the cabinet. There are four groups of dehumidifiers, and the four groups of dehumidifiers are respectively arranged at the four corners in the cabinet. The dehumidifier is electrically connected to the controller.

[0019] According to the geological and mineral exploration sample storage device provided by the present invention, the environmental monitoring system includes a temperature sensor and a humidity sensor. Both the temperature sensor and the humidity sensor are installed in the cabinet.

[0020] According to the geological and mineral exploration sample storage device provided by the present invention, the mobile support includes universal wheels. There are four groups of universal wheels, and the four groups of universal wheels are symmetrically arranged in pairs at the bottom of the cabinet.

[0021] According to the geological and mineral exploration sample storage device provided by the present invention, a limiting frame is fixedly connected to the top surface of the cushion plate. The limiting frame is of a U-shaped structure. The installation groove is arranged between the limiting frames, and the limiting frames are arranged corresponding to the material box.

[0022] The present invention discloses the following technical effects:

[0023] When the present invention is working, firstly, a plurality of lifting racks are encoded through the controller, and the lifting rack at the corresponding position is directly selected during access, and input is made on the input device, the input device transmits the signal to the controller, the controller locates the position of the lifting rack, and controls the electric lock to open, the operator opens the closed door, and puts the material box into the pick-and-place assembly in the cabinet through the window, the three-dimensional moving rack drives the pick-and-place assembly to move to the position of the corresponding lifting rack, and places the material box on the lifting rack to complete the storage of the sample, when the sample needs to be taken out, the corresponding lifting rack number is input through the input device, the controller controls the three-dimensional moving rack and the pick-and-place assembly to take out the material box, and transfer it to the operator through the window.

[0024] The present invention can realize rapid positioning and access of samples through the control system in conjunction with the three-dimensional mobile rack, thereby reducing the difficulty of sample induction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 This is a schematic diagram of the structure of the geological and mineral exploration sample storage device of the present invention;

[0027] Figure 2 This is a schematic diagram of the internal structure of the geological and mineral exploration sample storage device of the present invention;

[0028] Figure 3 It is a structural schematic diagram of the positioning assembly of the present invention;

[0029] Figure 4 It is a schematic diagram of the structure of the pick-and-place assembly of the present invention.

[0030] Among them, 1. cabinet; 2. mounting frame; 3. lifting frame; 4. material box; 5. controller; 6. input device; 7. cabinet door; 8. window; 9. closing plate; 10. electric lock; 11. Y-axis linear motor; 12. Z-axis linear motor; 13. support plate; 14. X-axis linear motor; 15. lifting plate; 16. pad; 17. support ring; 18. first drive motor; 19. drive gear; 20. mounting groove; 21. transmission gear roller; 22. second drive motor; 23. drive gear roller; 24. first positioning plate; 25. second positioning plate; 26. telescopic rod; 27. compression spring; 28. dehumidifier; 29. ​​universal wheel; 30. control cylinder. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figure 1-Figure 4 The present invention provides a geological and mineral exploration sample storage device, comprising:

[0034] Cabinet 1, a movable support is installed at the bottom of the cabinet 1;

[0035] Mounting rack 2, two groups of mounting racks 2 are provided, the two groups of mounting racks 2 are symmetrically fixedly connected in the cabinet 1, a plurality of rows of lifting racks 3 are fixedly connected to the mounting racks 2 at equal intervals, the material box 4 is placed on the lifting racks 3, and a positioning assembly is installed on the lifting racks 3;

[0036] Baffles, two groups of baffles are symmetrically arranged on the front side of the lifting frame 3, both groups of baffles are slidably matched with the lifting frame 3, and the baffles are limitedly matched with the material box 4. The front of the opposite sides of the material box 4 are respectively fixedly connected with control cylinders 30, the control cylinders 30 are horizontally arranged, and the ends of the control cylinders 30 are fixedly connected to the top of the baffles;

[0037] A three-dimensional mobile frame, which is installed in the cabinet 1 and has a pick-and-place assembly installed on it;

[0038] Environmental monitoring system, the environmental monitoring system is installed in the cabinet 1;

[0039] The control system includes a controller 5 and an input device 6. The controller 5 is installed in the cabinet 1, and the input device 6 is installed on the outer wall of the cabinet 1. The controller 5 is electrically connected to the input device 6, and the three-dimensional moving frame is electrically connected to the controller 5;

[0040] Cabinet doors 7 are installed at the front and back of the cabinet 1 respectively, a window 8 is opened on the front side of the cabinet 1, a closing plate 9 is installed on the window 8, an electric lock 10 is installed on the closing plate 9, and the electric lock 10 is connected to the controller 5 by signal.

[0041] When the present invention is working, firstly, a plurality of lifting racks 3 are encoded through the controller 5. When accessing, the lifting rack 3 at the corresponding position is directly selected and inputted on the input device 6. The input device 6 transmits the signal to the controller 5. The controller 5 locates the position of the lifting rack 3 and controls the electric lock 10 to open. The operator opens the closed door and puts the material box 4 into the pick-and-place assembly in the cabinet 1 through the window 8. The three-dimensional moving frame drives the pick-and-place assembly to move to the position of the corresponding lifting rack 3, and places the material box 4 on the lifting rack 3 to complete the storage of the sample. When the sample needs to be taken out, the corresponding lifting rack 3 number is inputted through the input device 6. The controller 5 controls the three-dimensional moving frame and the pick-and-place assembly to take out the material box 4 and transfer it to the operator through the window 8.

[0042] The present invention can realize rapid positioning and access of samples through the control system in conjunction with the three-dimensional mobile rack, thereby reducing the difficulty of sample induction.

[0043] Further optimization scheme, the three-dimensional moving frame includes a Y-axis linear motor 11, which is installed in the middle of the bottom surface of the cabinet 1 and is arranged parallel to the width direction of the cabinet 1. The Y-axis linear motor 11 is installed with a Z-axis linear motor 12, and the Z-axis linear motor 12 is installed with a support plate 13, and the support plate 13 is installed with an X-axis linear motor 14, and the X-axis linear motor 14 is installed with a lifting plate 15, and the pick-and-place assembly is installed on the lifting plate 15. The X-axis linear motor 14, the Y-axis linear motor 11, and the Z-axis linear motor 12 cooperate to form movement in three dimensions, so that the material box 4 can be moved to any position in the cabinet 1.

[0044] A further optimized solution is that the pick-and-place assembly includes a pad 16, and a support ring 17 is coaxially fixedly connected to the bottom surface of the pad 16. The support ring 17 is rotatably connected to the top surface of the lifting plate 15, and the support ring 17 and the lifting plate 15 are coaxially arranged. The outer wall of the support ring 17 is provided with a tooth groove, and the top surface of the lifting plate 15 is fixedly connected to a first drive motor 18, and the output shaft of the first drive motor 18 is fixedly connected to a drive gear 19, which is meshed with the support ring 17. An installation groove 20 is provided at the center of the pad 16, and a transmission assembly is installed in the installation groove 20.

[0045] A further optimized solution is that the transmission assembly includes a plurality of parallel arranged transmission gear rollers 21, which are rotatably connected in the mounting groove 20 via a mounting shaft, and a gap is provided between adjacent transmission gear rollers 21. The bottom surface of the pad 16 is fixedly connected to a second drive motor 22 via a mounting frame 2, and a gap is provided between the second drive motor 22 and the pad 16. The output shaft of the second drive motor 22 is fixedly connected to a drive gear roller 23, and the drive gear roller 23 is meshed with one of the transmission gear rollers 21.

[0046] The first drive motor 18 controls the drive gear 19 to rotate, thereby driving the overall support ring 17 to rotate. The rotation of the support ring 17 can adjust the discharge angle. The second drive motor 22 controls the drive gear roller 23 to rotate, thereby driving the transmission gear roller 21 to rotate. The transmission gear roller 21 is in direct contact with the material box 4, so that the material box 4 can be pushed out, or the material box 4 can be moved to the top surface of the pad 16, thereby realizing automatic picking and placing of the device.

[0047] A further optimized solution is that the positioning assembly includes a first positioning plate 24 and a second positioning plate 25. The cross-sectional shapes of the first positioning plate 24 and the second positioning plate 25 are both right-angled trapezoids. The inclined surface of the first positioning plate 24 slides with the inclined surface of the second positioning plate 25. The side surfaces of the first positioning plate 24 and the second positioning plate 25 are respectively fixedly connected with telescopic rods 26. The first positioning plate 24 is fixedly connected to the bottom surface of the lifting frame 3 through the telescopic rod 26. The second positioning plate 25 is fixedly connected to the side surface of the lifting frame 3 through the telescopic rod 26. Compression springs 27 are respectively fixedly connected between the first positioning plate 24 and the bottom surface of the lifting frame 3 and between the second positioning plate 25 and the side surface of the lifting frame 3. The compression springs 27 are sleeved on the telescopic rod 26. The first positioning plate 24 and the second positioning plate 25 are both in contact with the material box 4.

[0048] The first positioning plate 24 and the second positioning plate 25 are arranged vertically, and the size of the slider is smaller than that of the slide groove, so that a certain misalignment can be formed between the two. When the first positioning plate 24 is squeezed, the second positioning plate 25 slides relative to the first positioning plate 24 so that the second positioning plate 25 can always press the material box 4.

[0049] Further optimization scheme, a slide groove is provided on the inclined surface of the first positioning plate 24, and a slider is fixedly connected to the inclined surface of the second positioning plate 25, and the slider is slidably connected in the slide groove. Through the setting of the positioning component, material boxes 4 of different sizes can be positioned. In this embodiment, a U-shaped groove is provided on the bottom surface of the lifting frame 3. The setting of the U-shaped groove can ensure that the lifting plate 15 at the bottom can pass through the lifting frame 3, so that the material box 4 can be directly placed on the lifting frame 3. At the same time, it should be noted that sufficient space needs to be reserved between adjacent rows of lifting frames 3, and a certain amount of space is reserved in the front and rear sections of the cabinet 1, respectively, to facilitate the passage and position adjustment of the three-dimensional mobile frame.

[0050] Further optimizing the scheme, a dehumidifier 28 is installed in the cabinet 1, and four groups of dehumidifiers 28 are provided. The four groups of dehumidifiers 28 are respectively provided at four corners in the cabinet 1, and the dehumidifiers 28 are electrically connected to the controller 5. The provision of the dehumidifier 28 can ensure a dry environment in the cabinet 1, which is controlled by the controller 5. A shutter is provided on the side of the cabinet 1 for air exchange between the cabinet 1 and the external environment.

[0051] Further optimized solution: The environmental monitoring system includes a temperature sensor and a humidity sensor, both of which are installed in the cabinet 1. The temperature sensor and the humidity sensor respectively detect the temperature and humidity inside the cabinet 1.

[0052] Further optimized solution: The mobile support includes four sets of universal wheels 29, which are symmetrically arranged in pairs at the bottom of the cabinet 1. A braking component is provided on the universal wheels 29. The setting of the universal wheels 29 facilitates the movement of the device.

[0053] Further optimized solution: A limiting frame is fixedly connected to the top surface of the backing plate 16. The limiting frame is in a U-shaped structure. The installation groove 20 is arranged between the limiting frames, and the limiting frames are correspondingly arranged with the material box 4. The setting of the limiting frames can position the material box 4 and prevent the material box 4 from detaching from the backing plate 16.

[0054] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0055] The embodiments described above are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should fall within the protection scope determined by the claims of the present invention.

Claims

1. A geological and mineral exploration sample storage device, characterized in that: include: A cabinet (1), wherein a movable support is installed at the bottom of the cabinet (1); A mounting frame (2), wherein the mounting frame (2) is provided with two groups, the two groups of the mounting frames (2) are symmetrically fixedly connected in the cabinet (1), a plurality of rows of lifting frames (3) are fixedly connected at equal intervals on the mounting frame (2), the material box (4) is placed on the lifting frames (3), and a positioning component is installed on the lifting frames (3); baffles, wherein two groups of baffles are symmetrically arranged on the front side of the lifting frame (3), the two groups of baffles are slidably matched with the lifting frame (3), the baffles are limitedly matched with the material box (4), and the front of the opposite sides of the material box (4) are respectively fixedly connected with control cylinders (30), the control cylinders (30) are horizontally arranged, and the ends of the control cylinders (30) are fixedly connected to the top ends of the baffles; A three-dimensional mobile frame, the three-dimensional mobile frame is installed in the cabinet (1), and a pick-and-place component is installed on the three-dimensional mobile frame; An environmental monitoring system, the environmental monitoring system being installed in the cabinet (1); A control system, the control system comprising a controller (5) and an input device (6), the controller (5) being installed in the cabinet (1), the input device (6) being installed on the outer wall of the cabinet (1), the controller (5) being electrically connected to the input device (6), and the three-dimensional moving frame being electrically connected to the controller (5); The cabinet body (1) is provided with cabinet doors (7) at the front and rear sides respectively, the cabinet body (1) is provided with a window (8) at the front side, a closing plate (9) is provided on the window (8), an electric lock (10) is provided on the closing plate (9), and the electric lock (10) is connected to the controller (5) by signal.

2. A geological and mineral exploration sample storage device according to claim 1, characterized in that: The three-dimensional moving frame comprises a Y-axis linear motor (11), the Y-axis linear motor (11) is installed in the middle of the inner bottom surface of the cabinet (1), and is arranged parallel to the width direction of the Y-axis linear motor (11) and the cabinet (1), the Y-axis linear motor (11) is installed with a Z-axis linear motor (12), the Z-axis linear motor (12) is installed with a support plate (13), the support plate (13) is installed with an X-axis linear motor (14), the X-axis linear motor (14) is installed with a lifting plate (15), and the pick-and-place assembly is installed on the lifting plate (15).

3. A geological and mineral exploration sample storage device according to claim 2, characterized in that: The pick-and-place assembly comprises a pad (16), the bottom surface of the pad (16) is coaxially fixedly connected with a support ring (17), the support ring (17) is rotatably connected to the top surface of the lifting plate (15), and the support ring (17) and the lifting plate (15) are coaxially arranged, the outer wall of the support ring (17) is provided with a tooth groove, the top surface of the lifting plate (15) is fixedly connected with a first drive motor (18), the output shaft of the first drive motor (18) is fixedly connected with a drive gear (19), the drive gear (19) is meshed with the support ring (17), and the center position of the pad (16) is provided with an installation groove (20), and a transmission assembly is installed in the installation groove (20).

4. A geological and mineral exploration sample storage device according to claim 3, characterized in that: The conveying assembly includes a number of conveying tooth rollers (21) arranged in parallel. The conveying tooth rollers (21) are rotationally connected in the mounting groove (20) through a mounting shaft. There is a gap between adjacent conveying tooth rollers (21). The bottom surface of the backing plate (16) is fixedly connected to a second driving motor (22) through a mounting frame (2). There is a gap between the second driving motor (22) and the backing plate (16). The output shaft of the second driving motor (22) is fixedly connected to a driving tooth roller (23). The driving tooth roller (23) meshes with one of the conveying tooth rollers (21).

5. A geological and mineral exploration sample storage device according to claim 1, characterized in that: The positioning assembly includes a first positioning plate (24) and a second positioning plate (25). The cross-sectional shapes of the first positioning plate (24) and the second positioning plate (25) are both right trapezoids. The inclined surface of the first positioning plate (24) is in sliding fit with the inclined surface of the second positioning plate (25). The sides of the first positioning plate (24) and the second positioning plate (25) are respectively fixedly connected with telescopic rods (26). The first positioning plate (24) is fixedly connected to the bottom surface of the lifting frame (3) through the telescopic rod (26). The second positioning plate (25) is fixedly connected to the side surface of the lifting frame (3) through the telescopic rod (26). Compression springs (27) are respectively fixedly connected between the first positioning plate (24) and the bottom surface of the lifting frame (3), and between the second positioning plate (25) and the side surface of the lifting frame (3). The compression springs (27) are sleeved on the telescopic rods (26). Both the first positioning plate (24) and the second positioning plate (25) are in contact with the material box (4).

6. A geological and mineral exploration sample storage device according to claim 5, characterized in that: A chute is provided on the inclined surface of the first positioning plate (24), and a slider is fixedly connected to the inclined surface of the second positioning plate (25). The slider is slidably connected in the chute.

7. A geological and mineral exploration sample storage device according to claim 1, characterized in that: A dehumidifier (28) is installed in the cabinet (1). There are four groups of dehumidifiers (28), and the four groups of dehumidifiers (28) are respectively arranged at the four corners in the cabinet (1). The dehumidifier (28) is electrically connected to the controller (5).

8. A geological and mineral exploration sample storage device according to claim 1, characterized in that: The environmental monitoring system includes a temperature sensor and a humidity sensor. The temperature sensor and the humidity sensor are both installed in the cabinet (1).

9. A geological and mineral exploration sample storage device according to claim 1, characterized in that: The moving support includes universal wheels (29). There are four groups of universal wheels (29), and the four groups of universal wheels (29) are symmetrically arranged in pairs at the bottom of the cabinet (1).

10. A geological and mineral exploration sample storage device according to claim 3, characterized in that: A limiting frame is fixedly connected to the top surface of the backing plate (16). The limiting frame is of a U-shaped structure. The mounting groove (20) is arranged between the limiting frames. The limiting frames are arranged corresponding to the material box (4).

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