Wood chip sampling equipment for papermaking
By automating the design of the support and sampling components, the problem of physical exertion caused by handheld sampling devices in existing technologies is solved, achieving efficient automated sampling and improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 沐川禾丰纸业有限责任公司
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-05
AI Technical Summary
Existing wood chip sampling equipment requires long periods of handheld sampling for repeated insertion and extraction during continuous production, resulting in high physical exertion for operators, increased labor costs, and reduced sampling efficiency.
By employing support and sampling components, and using an electric push rod and a motor-driven pulley to rotate the lead screw, the sampling process is automated, reducing manual operation.
It reduced labor intensity, improved sampling efficiency, lowered labor costs, and prevented a decline in work enthusiasm due to fatigue.
Smart Images

Figure CN224202770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of papermaking production equipment, and in particular to a wood chip sampling device for papermaking. Background Technology
[0002] Paper mills typically use large quantities of wood as raw material, and different batches of wood may vary. Regularly sampling wood chips and comparing them with standard samples can monitor fluctuations in raw material quality and ensure that the wood raw materials used in production are of consistent quality. Therefore, wood chip sampling machines are needed to sample and test the quality of wood chips during the papermaking process.
[0003] Existing wood chip sampling methods typically involve workers holding a sampler and vertically inserting the sampling tube into a pile of wood chips. By manually pushing the handle or pressing a button, the sampling tube is pushed deeper into the pile of wood chips. Once a predetermined depth is reached, a valve or switch is operated to allow wood chips to enter the sampling tube. Then, the sampling tube is slowly pulled out to retrieve the sample.
[0004] However, in large-scale continuous production, holding the sampler for a long time and performing repetitive insertion and extraction actions will cause great physical exhaustion to the operators, which not only increases labor costs, but may also affect sampling efficiency due to factors such as staff fatigue and work enthusiasm. Utility Model Content
[0005] The purpose of this invention is to provide a wood chip sampling device for papermaking to solve the problems mentioned in the background art.
[0006] The technical solution adopted in this utility model is:
[0007] A wood chip sampling device for papermaking includes: a support assembly;
[0008] The support components include:
[0009] Fixture;
[0010] The movable slot is located at the center of the upper surface of the fixed frame;
[0011] The movable block is slidably installed inside the moving slot;
[0012] The first electric push rod is fixed to the lower surface of the movable block;
[0013] A connecting plate is fixed to the output end of the first electric push rod;
[0014] The sampling component includes:
[0015] The motor is fixed to the upper surface of the connecting plate;
[0016] The first pulley is fixed at the output end of the motor;
[0017] Fixed plates are attached to both sides of the connecting plate.
[0018] The lead screw rotates through the middle of the fixed plate;
[0019] Positive thread grooves are formed on one side of the lead screw;
[0020] The reverse thread groove is located on the other side of the lead screw.
[0021] Optionally, limit blocks are fixed on both sides of the connecting plate, and lifting grooves are provided on both sides of the inner wall of the fixing frame, with the limit blocks slidably placed inside the lifting grooves.
[0022] Optionally, a second pulley is fixed to the middle of the lead screw, and a belt connects the first pulley and the second pulley.
[0023] Optionally, two movable rings are threaded through both sides of the outer surface of the lead screw, one threaded through the outer surface of the positive thread groove and the other threaded through the outer surface of the negative thread groove, and limit grooves are opened on both sides of the outer surface of the connecting plate.
[0024] Optionally, a connecting rod is fixed to the middle of the outer surface of the movable ring, and a sampling frame is fixed to the lower end of the connecting rod. The connecting rod slides through the limiting groove.
[0025] Optionally, it also includes an adjustment component; the adjustment component includes: a fixed frame, fixed to both sides of the fixed frame; a movable plate, rotatably passing through the inside of the fixed frame; and a bottom wheel, rotatably passing through the lower end of the movable plate.
[0026] Optionally, a connecting frame is fixed to one side of the middle of the movable plate, and a rotating column is fixed inside the connecting frame.
[0027] Optionally, a connecting ring is rotatably passed through the middle of the rotating column, and a second electric push rod is fixed to one end of the connecting ring, and the second electric push rod is fixed to the outer surface of the fixed frame.
[0028] Compared with the prior art, the beneficial effects of this utility model are:
[0029] By using the support and sampling components, during sampling, the operator activates the first electric push rod via an external controller. The first electric push rod extends, causing the connecting plate to descend, along with the structure on the connecting plate. Then, the external controller starts the motor, which drives the first pulley to rotate. With the belt connecting the pulley, the second pulley rotates, and with the fixed plate installed, the second pulley drives the lead screw to rotate. The rotation of the lead screw synchronously drives the positive and negative thread grooves to rotate relative to each other. The relative rotation of the positive and negative thread grooves drives the two movable rings to move relative to each other. The two movable rings move synchronously towards the center, which, through the connecting rod, drives the two sampling frames to move towards the center to frame the wooden piece and remove the sample. Then, the first electric push rod shortens, removing the sample. The entire sampling process is operated uniformly by the external controller. The operator only needs to start and monitor the operation of the equipment, eliminating the need for repetitive manual insertion and extraction operations, greatly reducing labor intensity, improving work efficiency, and solving the problems in the existing technology. Attached Figure Description
[0030] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0031] Figure 1 This is a first-person perspective illustration in this application;
[0032] Figure 2 This is an exploded view of the supporting components in this application;
[0033] Figure 3 This is a schematic diagram of the sampling component in this application;
[0034] Figure 4 This is another perspective structural diagram of the sampling component in this application;
[0035] Figure 5 For this application Figure 2 Enlarged view of point A in the image.
[0036] Figure label:
[0037] 1. Support assembly; 11. Fixing frame; 12. Moving slot; 13. Movable block; 14. First electric push rod; 15. Connecting plate; 151. Limiting block; 16. Lifting slot;
[0038] 2. Sampling assembly; 21. Motor; 22. First pulley; 23. Fixing plate; 231. Limiting groove; 24. Lead screw; 241. Positive thread groove; 242. Negative thread groove; 25. Second pulley; 26. Belt; 27. Movable ring; 28. Connecting rod; 29. Sampling frame;
[0039] 3. Adjustment component; 31. Fixed frame; 32. Movable plate; 33. Bottom wheel; 34. Connecting frame; 35. Rotating column; 36. Connecting ring; 37. Second electric push rod; Detailed Implementation
[0040] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and to simplify the description, and are not intended to 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 this utility model.
[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0042] Given the current technology, in large-scale continuous production, holding the sampler for a long time and performing repetitive insertion and extraction actions will cause significant physical exhaustion for the operators, which not only increases labor costs, but may also affect sampling efficiency due to factors such as personnel fatigue and work enthusiasm.
[0043] like Figure 1-4 As shown, this utility model embodiment provides a wood chip sampling device for papermaking, including...
[0044] Support component 1;
[0045] Support component 1 includes:
[0046] Fixture 11;
[0047] The movable slot 12 is formed at the center of the upper surface of the fixed frame 11;
[0048] The movable block 13 is slidably installed inside the movable slot 12;
[0049] The first electric push rod 14 is fixed to the lower surface of the movable block 13;
[0050] The connecting plate 15 is fixed to the output end of the first electric push rod 14;
[0051] Sampling component 2, which includes:
[0052] Motor 21 is fixed to the upper surface of connecting plate 15;
[0053] The first pulley 22 is fixed at the output end of the motor 21;
[0054] Fixed plate 23 is fixed to both sides of connecting plate 15;
[0055] The lead screw 24 rotates through the middle of the fixed plate 23;
[0056] A positive thread groove 241 is formed on one side of the lead screw 24;
[0057] A reverse thread groove 242 is provided on the other side of the lead screw 24;
[0058] The fixed frame 11 serves as the basic frame of the entire sampling device, providing stable support and installation foundation for other components. The movable slot 12 is located at the center of the upper surface of the fixed frame 11, providing track space for the movable block 13 to be installed. The first electric push rod 14 pushes the movable block 13 to slide up and down in the movable slot 12 through the telescopic movement of its output end. The connecting plate 15 serves as the installation platform for the sampling component 2.
[0059] The motor 21 drives the first pulley 22 to rotate by outputting rotational power, providing initial power for the subsequent transmission mechanism. The first pulley 22 is used to receive the rotational power transmitted from the motor 21 and transmit it to the second pulley 25 through the belt 26. The fixed plate 23 provides stable support and positioning for the lead screw 24. The lead screw 24 is provided with a positive thread groove 241 and a negative thread groove 242. When the lead screw 24 rotates, the two movable rings 27 will move towards the middle or separate to both sides under the action of the positive and negative thread grooves, respectively.
[0060] Limiting blocks 151 are fixed on both sides of the connecting plate 15. Lifting grooves 16 are provided on both sides of the inner wall of the fixing frame 11. The limiting blocks 151 are slidably placed inside the lifting grooves 16. The middle of the lead screw 24 is fixed with a second pulley 25. A belt 26 is connected between the first pulley 22 and the second pulley 25. Two movable rings 27 are threaded through both sides of the outer surface of the lead screw 24. One thread passes through the outer surface of the positive thread groove 241, and the other thread passes through the outer surface of the negative thread groove 242. Limiting grooves 231 are provided on both sides of the outer surface of the connecting plate 15. A connecting rod 28 is fixed in the middle of the outer surface of the movable ring 27. A sampling frame 29 is fixed at the lower end of the connecting rod 28. The connecting rod 28 slides through the inside of the limiting groove 231.
[0061] The second pulley 25 transmits the power from the motor 21 via the first pulley 22 to the lead screw 24. During sampling, the two movable rings 27 move towards the center under the drive of the positive and negative thread grooves, and the sampling frame 29 retracts inward through the connecting rod 28 to grasp the wood chip. When the wood chip needs to be released, the movable rings 27 separate to the sides, and the sampling frame 29 opens accordingly to complete the release action of the wood chip.
[0062] During use, when sampling, the staff activates the first electric push rod 14 via an external controller. The first electric push rod 14 extends, causing the connecting plate 15 to descend, and the structure on the connecting plate 15 descends as well. Then, the external controller activates the motor 21, which drives the first pulley 22 to rotate. With the connection of the belt 26, the second pulley 25 rotates. With the installation of the fixed plate 23, the second pulley 25 drives the lead screw 24 to rotate. The rotation of the lead screw 24 synchronously drives the positive thread groove 241 and the negative thread groove 242 to rotate relative to each other. The relative rotation of the positive thread groove 241 and the negative thread groove 242 drives the two movable rings 27 to move relative to each other. The two movable rings 27 move synchronously towards the center, which drives the two sampling frames 29 to move towards the center via the connecting rod 28 to frame the wood chip and remove the sample. Then, the first electric push rod 14 shortens to remove the sample. The entire sampling process is operated uniformly by the external controller. The staff only needs to start and monitor the operation of the equipment, without having to perform repetitive operations such as manual insertion and extraction, which greatly reduces labor intensity and improves work efficiency.
[0063] Specifically, such as Figure 1-5 As shown,
[0064] Adjustment component 3; Adjustment component 3 includes: a fixed frame 31, fixed on both sides of the fixed frame 11; a movable plate 32, which rotates through the inside of the fixed frame 31; and a bottom wheel 33, which rotates through the lower end of the movable plate 32.
[0065] The fixed frame 31 serves as the support structure for the movable plate 32, ensuring the stability and accuracy of the movable plate 32 during rotation. The movable plate 32 is the core component of the adjustment assembly 3, and its rotation is achieved by the rotation of the bottom wheel 33. The bottom wheel 33 bears the weight of the movable plate 32, allowing the operator to adjust the position and angle of the sampling device by controlling the rotation of the bottom wheel 33.
[0066] A connecting frame 34 is fixed to one side of the middle of the movable plate 32, and a rotating column 35 is fixed inside the connecting frame 34. A connecting ring 36 is rotatably passed through the middle of the rotating column 35. A second electric push rod 37 is fixed to one end of the connecting ring 36, and the second electric push rod 37 is fixed to the outer surface of the fixed frame 11.
[0067] The connecting frame 34 serves as a support structure for the rotating column 35, ensuring the stability and accuracy of the rotating column 35 on the movable plate 32. The rotating column 35 serves as the rotation axis of the connecting ring 36, allowing the connecting ring 36 to rotate on it. The connecting ring 36 serves as a bridge connecting the rotating column 35 and the second electric push rod 37, converting the telescopic motion of the second electric push rod 37 into the rotational motion of the rotating column 35.
[0068] During use, if the ground is uneven during sampling, the second electric push rod 37 can be activated via an external controller. The second electric push rod 37 extends, which will drive the connecting ring 36 to move outward, and the lower end of the movable plate 32 to move outward, so that the movable plate 32 supports the sampling device on a flat ground, maintaining the stability of the sampling device. By adjusting the position of the movable plate 32, the sampling device can be stably supported on a flat ground, which can reduce the safety risks during operation and protect the safety of operators and equipment.
[0069] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A wood chip sampling device for papermaking, characterized in that, include: Support components; The support assembly includes: a fixing frame; A movable slot is formed at the center of the upper surface of the fixed frame; a movable block is slidably installed inside the movable slot; a first electric push rod is fixed to the lower surface of the movable block; A connecting plate is fixed to the output end of the first electric push rod; a sampling assembly is included, the sampling assembly comprising: The motor is fixed to the upper surface of the connecting plate; The first pulley is fixed at the output end of the motor; Fixed plates are attached to both sides of the connecting plate. The lead screw rotates through the middle of the fixed plate; Positive thread grooves are formed on one side of the lead screw; The reverse thread groove is located on the other side of the lead screw.
2. The wood chip sampling device for papermaking according to claim 1, characterized in that, Limiting blocks are fixed on both sides of the connecting plate, and lifting grooves are provided on both sides of the inner wall of the fixing frame, with the limiting blocks slidingly placed inside the lifting grooves.
3. The wood chip sampling device for papermaking according to claim 2, characterized in that, A second pulley is fixed in the middle of the lead screw, and a belt connects the first pulley and the second pulley.
4. The wood chip sampling device for papermaking according to claim 3, characterized in that, Two movable rings are threaded through both sides of the outer surface of the lead screw. One thread passes through the outer surface of the positive thread groove, and the other thread passes through the outer surface of the negative thread groove. Limiting grooves are opened on both sides of the outer surface of the connecting plate.
5. A wood chip sampling device for papermaking according to claim 4, characterized in that, A connecting rod is fixed to the middle of the outer surface of the movable ring, and a sampling frame is fixed to the lower end of the connecting rod. The connecting rod slides through the limiting groove.
6. The wood chip sampling device for papermaking according to claim 5, characterized in that, It also includes an adjustment component; the adjustment component includes: a fixed frame, fixed to both sides of the fixed frame; a movable plate, which rotates through the inside of the fixed frame; and a bottom wheel, which rotates through the lower end of the movable plate.
7. A wood chip sampling device for papermaking according to claim 6, characterized in that, A connecting frame is fixed to one side of the middle of the movable plate, and a rotating column is fixed inside the connecting frame.
8. A wood chip sampling device for papermaking according to claim 7, characterized in that, A connecting ring is rotatably passed through the middle of the rotating column. A second electric push rod is fixed to one end of the connecting ring and is fixed to the outer surface of the fixed frame.