Rotating mechanism, sample preparation instrument and sample preparation method
The rotating mechanism, rotating seat and bearing, the bearing including upper and lower rings, and the transmission mechanism enable flexible rotation of the sample stage, solving the problem of unstable sample stage center of gravity in the prior art, and improving cutting accuracy and motor life.
Patent Information
- Application Number
- CN202511570925.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2025-12-30
AI Technical Summary
Existing technologies cannot flexibly address the challenges of laboratory sample preparation for paper and paper products. One problem that existing technologies cannot effectively solve is that existing instruments cannot adapt to different specifications and sizes, resulting in an unstable sample stage center of gravity and inability to rotate and cut normally.
A rotating mechanism is adopted, including a rotating base and a motor. A bearing is set on the rotating base, and the bearing includes an upper ring and a lower ring. The motor is connected to the bearing through a transmission mechanism, so as to realize the flexible rotation of the sample stage.
It achieves stable support and flexible rotation of the sample stage, adapting to the cutting needs of paper and paper products of different specifications and sizes, and improving cutting accuracy and motor lifespan.
Smart Images
Figure CN121223909A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of shearing equipment for light industrial materials, and particularly to a rotating mechanism, a sample preparation instrument, and a sample preparation method. Background Technology
[0002] In the process of testing paper products, the paper to be tested needs to be cut and shredded. This task can be accomplished by referring to fabric cutting equipment available on the market.
[0003] For example, Chinese patent applications “CN2020110311619, CN115559103A, Sample Shredder and Method for Shredding Sheet Samples” and “CN2022112063720, CN112255058A, Cloth Shredder and Method for Cloth Shredding” can effectively cut and shred paper. Chinese patent applications “CN201120330690, CN201120077880, A Paperboard Flat Crush Strength Sampler Capable of Cutting Circular Samples from Paperboard” and “CN201620896893, CN201610682127, A Laboratory Paperboard Toothless Cutting and Sample Preparation Device” can cut laboratory paper and paper product samples of specific shapes or specific products.
[0004] However, in laboratory sample preparation for paper and paper products, the samples include various types of paper and paper products such as toilet paper, tissue paper, napkins, paper handkerchiefs, kitchen paper towels, and cigarette paper. These products have significant differences in specifications and dimensions, requiring a wide range of sample sizes, and often multiple samples need to be prepared simultaneously. Existing shredders and sample preparation devices offer limited sample preparation methods and sizes, typically achieved through sample molds, and cannot flexibly cut samples to meet different size requirements according to standards. Therefore, when shredding paper and paper products, the sample stage cannot accommodate large areas of paper, and the sample stage cannot rotate 90 degrees after cutting in one direction. Current shredders rotate the sample stage by directly mounting it on the motor output shaft. Based on these considerations, the wide variety of paper and paper product sample specifications and the diverse size requirements, coupled with the limited cutting capabilities of shredders and other sample preparation equipment, make the sample stage unstable and prevent normal rotation and direction switching. Summary of the Invention
[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a rotating mechanism, a sample preparation instrument, and a sample preparation method, which aims to solve the technical problems of large differences in the specifications of paper and paper products, numerous size requirements, and inconvenient cutting in the prior art.
[0006] To achieve the above objectives, the present invention proposes a rotating mechanism, comprising a rotating base and a motor mounted on the rotating base; the rotating base is fixed on a heightening block, the motor is disposed within the heightening block, and a bearing is provided on the rotating base, the bearing comprising an upper ring and a lower ring, the lower ring being fixed on the rotating base, and a sample stage being fixedly connected to the upper ring; the motor is connected to the upper ring via a transmission mechanism, the transmission mechanism comprising a small gear disposed on the output shaft of the motor and a large gear disposed on the upper ring, the large gear and the small gear meshing with each other.
[0007] Preferably, the bearing further includes a roller, and the bearing is a double roller bearing; the output shaft of the motor is connected to the pinion via a coupling.
[0008] Preferably, the sample stage includes a tray frame fixed on the upper ring and a carrier plate disposed on the tray frame; the outer periphery of the tray frame extends upward to form a flange, and the carrier plate is disposed within the flange with the height of the carrier plate being higher than the flange.
[0009] Preferably, the pallet frame is provided with countersunk holes, and the upper ring is provided with corresponding screw holes, so that the pallet frame is fixed to the upper ring by bolts.
[0010] To achieve the above objectives, the present invention proposes a sample preparation instrument, including a frame and a lifting and translating device, a cutting device, and a rotating mechanism disposed on the frame. The rotating mechanism is the aforementioned mechanism. The cutting device is mounted on the lifting and translating device, which drives the cutting device to move up and down and horizontally, so that the cutting device rolls and cuts the paper sample on the rotating mechanism.
[0011] Preferably, a horizontal moving frame is provided on the frame, and the rotating mechanism is mounted on the horizontal moving frame.
[0012] To achieve the above objectives, the present invention proposes a sample preparation method using the aforementioned sample preparation instrument, comprising the following steps: (1) Start the sample preparation instrument, adjust the sample stage back and forth to the operating position by using the horizontal moving frame, and place the stacked paper on the sample stage; (2) Move the sample stage to the working position by adjusting it back and forth using the horizontal moving frame. At this time, the cutting device is located above the rear side of the sample stage. (3) Drive the cutter device down to the sample stage position and press the paper firmly onto the sample stage; (4) Drive the cutting device to roll and cut the paper on the sample stage in the left and right directions; (5) After the rolling cut is completed, the drive cutter device is raised; (6) Drive the sample stage forward a distance on the horizontal moving frame, the distance of which matches the width of the cutting device; (7) Repeat steps 3) to 6) until the paper on the sample stage is cut in the left and right directions; (8) Drive the sample stage back to the working position, and the rotating mechanism will rotate the sample stage 90 degrees; (9) Move the drive cutter device to the top of the rear side of the sample stage; (10) Repeat steps 3) to 6) until the paper on the sample stage is rolled into pieces of the predetermined size; (11) Drive the sample stage from the working position to the operating position to collect the cut paper fragments.
[0013] Compared with the prior art, the beneficial effects of the rotating mechanism, sample preparation instrument, and sample preparation method provided by the present invention are as follows: 1. The sample stage is supported by double roller bearings, which increases the load-bearing capacity of the sample stage and makes the load-bearing surface larger.
[0014] 2. The sample stage is reversed through gear transmission, which has high angular accuracy, low motor starting power, and longer service life.
[0015] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0017] Figure 2 This is a schematic diagram of the internal structure without the upper shell.
[0018] Figure 3 This is a schematic diagram of the sample stage device.
[0019] Figure 4 This is a schematic diagram of the rotating mechanism.
[0020] Figure 5 It is attached Figure 4 A sectional view.
[0021] Figure 6 It is attached Figure 4 A schematic diagram of the structure of the cloud-dropping rotating seat.
[0022] In the diagram: 1. Frame; 2. Lifting and translating device; 3. Cutting device; 4. Sample stage; 5. Horizontal moving frame; 6. Rotating mechanism; 7. Rotating seat; 8. Motor; 9. Bearing; 10. Lower ring; 11. Upper ring; 12. Transmission mechanism; 13. Tray frame; 14. Carrier plate; 15. Flanged edge; 16. Bolt; 17. Roller; 18. Large gear; 19. Small gear; 20. Heightening block; 21. Coupling. Detailed Implementation
[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.
[0024] In the description of this invention, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.
[0025] In the description of this invention, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.
[0026] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.
[0027] See Figure 1 and Figure 2This invention provides a sample preparation instrument, including a frame 1 and a lifting and translating device 2, a cutting device 3, and a rotating mechanism 6 mounted on the frame 1. The cutting device 3 is mounted on the lifting and translating device 2, which drives the cutting device 3 to move up and down and horizontally, causing the cutting device 3 to roll and cut the paper sample on the rotating mechanism 6. A horizontal moving frame 5 is provided on the frame 1, and the rotating mechanism 6 is mounted on the horizontal moving frame 5. The rotating mechanism 6 has a rotating base 7 fixed on a lifting block 20, a motor 8 disposed within the lifting block 20, a tray frame 13 on the rotating base 7, and a carrier plate 14 on the tray frame 13. The horizontal moving frame 5 adjusts the position of the cardboard (in this invention, cardboard refers to paper and paper products) on the carrier plate 14, the lifting and translating device 2 adjusts the position of the cutting device 3 relative to the cardboard, and the rotating mechanism 6 adjusts the cutting angle of the cardboard, causing the cutting device 3 to roll and cut different positions of the paper sample on the sample stage 4.
[0028] It should be noted that the horizontal moving frame 5, the cutting device 3, and the lifting and translating device 2 can all use structures in the prior art, such as the structures in the patent applications mentioned in the background art.
[0029] Furthermore, see Figure 3-6 This invention provides a rotating mechanism 6, including a rotating base 7 and a motor 8 mounted on the rotating base 7. The rotating base 7 is fixed to a heightening block 20, and the motor 8 is disposed within the heightening block 20, which reduces the overall volume. A bearing 9 is provided on the rotating base 7, comprising an upper ring 11 and a lower ring 10. The lower ring 10 is fixed to the rotating base 7, and a sample stage 4 is fixedly connected to the upper ring 11. The motor 8 is connected to the upper ring 11 via a transmission mechanism 12. The transmission mechanism 12 includes a small gear 19 mounted on the output shaft of the motor 8 and a large gear 18 mounted on the upper ring 11, with the large gear 18 and small gear 19 meshing with each other. During rotation, the motor 8 starts, driving the small gear 19 to rotate, which in turn drives the large gear 18 to rotate, which in turn drives the upper ring 11 to rotate, and the upper ring 11 drives the rotating base 7 to rotate, thereby achieving steering. This method results in lower starting power and a longer service life for the motor.
[0030] Furthermore, see Figure 5 and Figure 6 The bearing 9 also includes a roller 17. The bearing 9 is a double roller bearing, and the rollers 17 are arranged alternately to withstand a large radial force. The output shaft of the motor 8 is connected to the pinion 19 via a coupling 21.
[0031] Furthermore, see Figure 3-4The sample stage 4 includes a tray frame 13 fixed to the upper ring 11 and a carrier plate 14 disposed on the tray frame 13. The outer periphery of the tray frame 13 extends upward to form a flange 15, and the carrier plate 14 is disposed within the flange 15 with its height higher than the flange 15. Specifically, flanges 15 are provided at the four corners of the tray frame 13, and there are gaps between the flanges 15 to facilitate the installation of the carrier plate 14 and to prevent it from shaking after installation.
[0032] Furthermore, see Figure 3-4 The pallet frame 13 has countersunk holes, and the upper ring 11 has corresponding screw holes. The pallet frame 13 is fixed to the upper ring 11 by bolts 16. The pallet frame 13 can rotate with the upper ring 11, making it easy to adjust the cutting position.
[0033] To accommodate the large area of paper, the sample stage was made into a large-area platform. The horizontal moving frame and the heightening block were correspondingly enlarged. By using a large support surface on the bearing, the sample stage can rotate and move under heavy weight and large area conditions in the laboratory sample preparation line.
[0034] For laboratory sample preparation of large-area paper, the aforementioned sample preparation instrument was used. The specific sample preparation method includes the following steps: (1) Start the sample preparation instrument, with Figure 1 For example, the sample stage 4 is moved forward and backward to the operating position using the horizontal moving frame 5, with the foremost position selected for easy operation. Stacked papers are then placed on the sample stage 4. The forward and backward movement of the sample stage 4 is controlled automatically via the automatic control button.
[0035] (2) The sample stage 4 is moved to the working position by adjusting the horizontal moving frame 5. The working position is further away from the operator than the operating position. At this time, the cutting device is located above the rear side of the sample stage 4. If the stacked paper area is too large, the cutting device 3 cannot completely cover the paper axially, so a segmented cutting method is adopted.
[0036] (3) Drive the cutter device 3 down to the sample stage 4 and press the paper firmly onto the sample stage 4.
[0037] (4) Drive the cutting device 3 to roll and cut the paper on the sample stage 4 in the left and right direction.
[0038] (5) After the rolling cut is completed, drive the cutter device 3 to rise; (6) Drive the sample stage 4 to move forward a distance on the horizontal frame 5. If the stacked paper area is too large, the axial direction of the cutting device 3 cannot completely cover the paper. The method of segmented cutting is adopted. This distance is matched with the width of the cutting device 3, that is, a distance that is the axial length of the cutting device 3 or it can be less than this distance, so that the paper can be cut in both the front and back directions.
[0039] (7) Repeat steps (3) to (6) until the paper on the sample stage is cut in the left and right directions.
[0040] (8) Drive the sample stage back to the working position, and the rotating mechanism will rotate the sample stage 90 degrees.
[0041] (9) Drive the cutter device to move to the top of the rear side of the sample stage.
[0042] (10) Repeat steps (3) to (6) until the paper on the sample stage is rolled into pieces of the predetermined size.
[0043] (11) Drive the sample stage from the working position to the operating position to collect the cut paper fragments.
[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A rotating mechanism comprising a rotating base and a motor arranged on the rotating base; characterized in that: The rotating seat is fixed on the heightening block, the motor is arranged in the heightening block, a bearing is arranged on the rotating seat, the bearing comprises an upper ring and a lower ring, the lower ring is fixed on the rotating seat, a sample table is fixedly connected on the upper ring, the motor is connected with the upper ring through a transmission mechanism, the transmission mechanism comprises a pinion arranged on an output shaft of the motor and a gear arranged on the upper ring, and the gear and the pinion are engaged with each other.
2. A rotating mechanism as claimed in claim 1, characterized in that: The bearing further comprises a roller, and the bearing is a double-roller bearing; and the output shaft of the motor is connected with the pinion through a shaft coupling.
3. A rotating mechanism as claimed in claim 2, characterized in that: The sample table comprises a tray frame fixed on the upper ring and a carrier plate arranged on the tray frame; the tray frame is extended upwards to form a flange at the periphery, and the carrier plate is arranged in the flange and has a height higher than the flange.
4. A rotating mechanism as claimed in claim 3, characterized in that: A counterbore is arranged on the tray frame, and a corresponding screw hole is arranged on the upper ring, and the tray frame is fixed on the upper ring through a bolt.
5. A sample preparation instrument, characterized by: The device comprises a rack, a lifting and translating device, a cutter device and a rotating mechanism arranged on the rack, the rotating mechanism is the mechanism as claimed in any one of claims 1-4, the cutter device is installed on the lifting and translating device, and the lifting and translating device drives the cutter device to lift and horizontally move, so that the cutter device rolls and cuts the paper sample on the rotating mechanism.
6. A sample preparation instrument as claimed in claim 5, characterized in that: A horizontal moving rack is arranged on the rack, and the rotating mechanism is installed on the horizontal moving rack.
7. A method of sample preparation, characterized by: The sample preparation instrument as claimed in any one of claims 5-6 is used, and the following steps are included: (1) starting the sample preparation instrument, adjusting and moving the sample table to an operation position through the horizontal moving rack, and placing the stacked paper on the sample table; (2) adjusting and moving the sample table to a working position through the horizontal moving rack, and locating the cutter device above the rear side edge of the sample table; (3) driving the cutter device to descend to the sample table position and press the paper on the sample table; (4) driving the cutter device to roll and cut the paper on the sample table in the left-right direction; (5) driving the cutter device to ascend after the rolling and cutting is completed; (6) driving the sample table to move forward by a distance on the horizontal moving rack, and the distance matches the width of the cutter device; (7) repeating steps (3) to (6) until the paper on the sample table is cut in the left-right direction; (8) driving the sample table to return to the working position, and rotating the sample table by 90 degrees through the rotating mechanism; (9) driving the cutter device to move to above the rear side edge of the sample table; (10) repeating steps (3) to (6) until the paper on the sample table is rolled and cut into pieces of a predetermined size; (11) driving the sample table to move from the working position to the operation position, and collecting the cut paper pieces.