Sample preparation rag grinder for textile ph value detection

By using a servo motor-driven roller shearing mechanism and an electrostatic elimination device, the problems of low sample preparation efficiency and static electricity in the pH value testing of textiles are solved, achieving efficient and accurate sample preparation and ensuring the accuracy and repeatability of test results.

CN224535564UActive Publication Date: 2026-07-21WENZHOU RONGKE INSTRUMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU RONGKE INSTRUMENT CO LTD
Filing Date
2026-06-08
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing technologies, sample preparation efficiency for pH value testing of textiles is low, and manual cutting leads to dimensional inconsistencies and static electricity problems, affecting the accuracy and repeatability of test results.

Method used

The servo motor-driven rotary shearing mechanism, combined with an electrostatic meter and a built-in vacuum cleaner, enables efficient and precise sample preparation, eliminates static electricity, and keeps the equipment clean.

Benefits of technology

It improved sample preparation efficiency, ensured sample size consistency, reduced the impact of static electricity, reduced cleaning workload, and protected the health of operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to textile processing technical field, and disclose a kind of sample preparation cloth cutting machine for textile PH value detection;Including machine body, still including the feed inlet and discharge port of being set in the both sides of machine body top, the support of being fixedly connected in the machine body interior, the bottom of the support inner chamber is fixedly connected with servo motor, the utility model adopts servo motor drive's hob type shearing mechanism, and a large number of conforming standard size (5mmx5mm) cloth sample of preparation can be prepared every hour, compared with hand scissors shearing, efficiency is improved, and electrostatic instrument is set in shearing zone, effectively eliminates static electricity, prevents fine fabric scrap to be adsorbed on cutter die or machine body, both avoid sample loss, and reduce cleaning work, built-in dust collector sucks shearing dust in real time through dust suction port, keep equipment internal clean, prevent dust from spreading to laboratory air at the same time, protect operator health.
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Description

Technical Field

[0001] This utility model relates to the field of textile processing technology, specifically to a sample preparation shredder for testing the pH value of textiles. Background Technology

[0002] In chemical analysis projects such as pH value testing and formaldehyde content testing of textiles, sample preparation is a crucial step affecting the accuracy of the test results. According to the standard requirements for determining the pH value of textile aqueous extracts and the formaldehyde content of textiles, the test sample needs to be cut into small pieces of approximately 5mm × 5mm to ensure sufficient extraction and consistent results. Currently, laboratories commonly use manual scissors to cut the samples piece by piece. However, this traditional method has the following technical shortcomings:

[0003] First, manual sample cutting is inefficient. A skilled tester can only prepare tens of grams of qualified samples per hour. When the batch testing tasks are heavy, the sample preparation process becomes the bottleneck of the entire testing process, which seriously affects the testing cycle.

[0004] Secondly, manual sample cutting makes it difficult to ensure the consistency and uniformity of sample size. Manual operation is prone to producing fragments of different sizes and rough edges, which can lead to insufficient extraction or fluctuations in the concentration of the extract, thereby introducing measurement errors and affecting the repeatability and accuracy of pH and formaldehyde content detection data.

[0005] Furthermore, textiles are prone to static electricity due to friction during the cutting process. Static electricity can cause small fabric debris to adhere to the scissors, containers, and work surfaces, resulting in sample loss and increased cleaning difficulty. Utility Model Content

[0006] The purpose of this invention is to provide a sample preparation shredder for testing the pH value of textiles, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a sample preparation shredder for textile pH value testing, comprising a machine body, and further comprising:

[0008] The inlet and outlet are located on both sides of the top of the machine body;

[0009] A bracket is fixedly connected inside the machine body. A servo motor is fixedly connected to the bottom of the inner cavity of the bracket. A planetary reducer is provided at the output end of the servo motor. A drive sprocket is fixedly connected to the output end of the planetary reducer. A chain is driven to the outside of the drive sprocket. A tension sprocket is provided on one side of the chain. A driven sprocket is driven to the drive sprocket through the chain. A blade rest is fixedly connected to the axis of the driven sprocket. A blade die is provided above the blade rest.

[0010] A dust extraction port is provided on one side of the die and located on the side of the bracket, and an electrostatic meter is provided on one side of the die.

[0011] Preferably, the blade rest is rotatably connected inside the bracket, and one end of the blade rest is fixedly connected to a drive gear.

[0012] Preferably, a driven gear is meshed with the outer side of the drive gear, and the axis of the driven gear is fixedly connected to one end of the die.

[0013] Preferably, the die is rotatably connected inside the bracket, and a pressure roller is provided on the top of the die.

[0014] Preferably, a USB interface and a power socket are respectively provided on one side of the machine body, and an electrical maintenance port for servo motor maintenance is provided on the side of the USB interface and the power socket.

[0015] Preferably, a power button, a stop button, and a start button are respectively provided on the front side of the machine body, and a touch screen is provided on one side of the power button, the stop button, and the start button.

[0016] Preferably, the machine body is provided with a built-in vacuum cleaner cleaning door on one side of the discharge port, and the vacuum cleaner inside the built-in vacuum cleaner cleaning door is connected to the vacuum port.

[0017] Preferably, the bracket is provided with an outer shell, and the two sides of the outer shell are respectively provided with a die-cutting mold observation door and a die-cutting mold maintenance door.

[0018] Preferably, digital positioners are respectively provided on both sides of the top of the bracket, and an adjustment knob is threadedly connected to the top of the bracket, with the adjustment knob located on top of the digital positioners.

[0019] Preferably, the bottom of the adjustment knob is rotatably connected to the top of the connecting blocks on both sides of the pressure roller, and the pressure roller is slidably connected to the inner wall of the bracket through the connecting blocks on both sides.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] This invention employs a servo motor-driven rotary shearing mechanism, capable of producing a large number of standard-sized (5mm×5mm) fabric scraps per hour. Compared to manual shearing, this improves efficiency. Furthermore, an electrostatic meter is installed in the shearing area to effectively eliminate static electricity, preventing fine fabric scraps from adhering to the die or machine body. This avoids sample loss and reduces cleaning work. A built-in vacuum cleaner continuously extracts shearing dust through the suction port, keeping the equipment clean and preventing dust from spreading into the laboratory air, thus protecting the health of operators. Attached Figure Description

[0022] Figure 1 A schematic diagram of a preferred embodiment of the textile pH value testing sample preparation shredder provided by this utility model;

[0023] Figure 2 A schematic diagram of the body structure provided by this utility model;

[0024] Figure 3 A schematic diagram of the support structure provided by this utility model;

[0025] Figure 4 Another perspective structural diagram of the bracket provided by this utility model;

[0026] Figure 5 This is a schematic diagram of the die-cutting mold and pressure roller structure provided by this utility model;

[0027] Figure 6 A side sectional view of the bracket provided by this utility model;

[0028] Figure 7 The right view of the body provided by this utility model;

[0029] Figure 8 The front view of the machine body provided by this utility model;

[0030] Figure 9 The left view of the body provided by this utility model;

[0031] Figure 10 A top view of the machine body provided for this utility model.

[0032] In the diagram: 1. Machine body; 2. USB interface; 3. Die-cutting mold observation door; 4. Electrical maintenance port; 5. Power socket; 6. Power button; 7. Stop button; 8. Start button; 9. Digital positioner; 10. Adjustment knob; 11. Touch screen; 12. Die-cutting mold maintenance door; 13. Built-in vacuum cleaner cleaning door; 14. Discharge port; 15. Feed port; 16. Tensioning sprocket; 17. Drive sprocket; 18. Chain; 19. Driven sprocket; 20. Bracket; 21. Servo motor; 22. Planetary reducer; 23. Drive gear; 24. Driven gear; 25. Vacuum port; 26. Die-cutting pillow; 27. Die-cutting mold; 28. Pressure roller; 29. ​​Electrostatic meter. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figures 1-10 As shown, a sample preparation shredder for testing the pH value of textiles includes a machine body 1, and further includes:

[0035] The feed inlet 15 and the discharge outlet 14 are located on both sides of the top of the machine body 1;

[0036] A bracket 20 is fixedly connected inside the body 1. A servo motor 21 is fixedly connected to the bottom of the inner cavity of the bracket 20. A planetary reducer 22 is provided at the output end of the servo motor 21. A drive sprocket 17 is fixedly connected to the output end of the planetary reducer 22. A chain 18 is driven to the outside of the drive sprocket 17. A tension sprocket 16 is provided on one side of the chain 18. A driven sprocket 19 is driven to the drive sprocket 17 through the chain 18. A blade rest 26 is fixedly connected to the shaft of the driven sprocket 19. A blade die 27 is provided above the blade rest 26.

[0037] A dust extraction port 25 is provided on one side of the die 27 and located on the side of the bracket 20. An electrostatic meter 29 is provided on one side of the die 27.

[0038] The blade rest 26 is rotatably connected inside the bracket 20, and a drive gear 23 is fixedly connected to one end of the blade rest 26. A driven gear 24 is meshed with the outer side of the drive gear 23. The shaft of the driven gear 24 is fixedly connected to one end of the die 27. The die 27 is rotatably connected inside the bracket 20, and a pressure roller 28 is provided on the top of the die 27.

[0039] The machine body 1 serves as the outer shell and supporting frame of the entire machine. It is formed by welding sheet metal and is hollow inside to accommodate various functional components. The machine body 1 has external dimensions of 600mm×580mm×520mm and weighs about 60kg. It has a stable structure and runs smoothly. The feed port 15 is located on the top side of the machine body 1. It is a narrow opening with a width of ≤110mm and is used to manually or automatically feed the textile sample to be cut. The inner side of the feed port 15 is connected to the interlocking area between the die 27 and the blade rest 26 to ensure that the fabric enters the cutting area smoothly. The discharge port 14 is located on the other side of the top of the machine body 1, opposite to the feed port 15. It is a downward sloping channel used to discharge the 5mm×5mm scraps of fabric that have been cut out of the machine for easy collection.

[0040] The bracket 20 is fixedly connected inside the machine body 1, serving as the mounting base for all transmission and shearing components. The bracket 20 adopts a high-strength cast iron or steel plate welded structure, which has sufficient rigidity and vibration damping performance. The servo motor 21 is fixedly installed at the bottom of the inner cavity of the bracket 20, providing power for the entire machine. The speed of the servo motor 21 can be adjusted from 0-6000mm / min linear speed to adapt to textiles of different thicknesses and materials. The planetary reducer 22 is connected to the output end of the servo motor 21 to reduce the speed and increase the torque, so that the die 27 obtains a stable and powerful shearing force, while ensuring smooth operation and low noise. The drive sprocket 17 is fixed on the output shaft of the planetary reducer 22. The chain 18 drives the drive sprocket 17 and the driven sprocket 19, transmitting power from the servo motor 21 end to the blade rest 26. A tension sprocket 16 is provided on one side of the chain 18 to adjust the chain tension and prevent slippage or jumping.

[0041] Driven sprocket 19 is linked to drive sprocket 17 via chain 18. A blade rest 26 is fixedly connected to its shaft. When driven sprocket 19 rotates, it drives blade rest 26 to rotate synchronously. Blade rest 26 is rotatably connected inside bracket 20. It is cylindrical or roller-shaped. Its surface has annular shearing grooves or knurling distributed along the axial direction for cooperating with die 27 to achieve shearing. Die 27 is set above blade rest 26 and is also rotatably connected inside bracket 20. The surface of die 27 has raised annular blades distributed along the axial direction. The spacing of the blades determines the size of the shredded cloth (5mm for this machine). The gap between die 27 and blade rest 26 is adjustable to accommodate samples of different thicknesses.

[0042] The drive gear 23 is fixedly connected to one end of the blade rest 26 and can rotate synchronously with the blade rest 26. The driven gear 24 is meshed with the outside of the drive gear 23, and its shaft is fixedly connected to one end of the die 27. Through gear meshing, the rotational power of the blade rest 26 is transmitted in the opposite direction to the die 27, so that the die 27 and the blade rest 26 rotate relative to each other in opposite directions, thereby forming a shearing engagement. The pressure roller 28 is set on the top of the die 27 and is slidably connected to the inner wall of the bracket 20 through the connecting blocks on both sides. The function of the pressure roller 28 is to apply downward pressure to the die 27 during the shearing process, so that the engagement between the die 27 and the blade rest 26 is tighter, ensuring thorough shearing and no blade breakage.

[0043] The electrostatic meter 29 is located on one side of the die 27, close to the shearing area. The electrostatic meter 29 adopts non-contact electrostatic elimination technology (such as ion air bar or high voltage electrostatic eliminator), which can neutralize the static electricity generated by the friction between the fabric and the die in real time, prevent small pieces of fabric from being attracted to the surface of the die or die rest due to static electricity, ensure that the pieces of fabric fall smoothly and are discharged from the discharge port 14, and at the same time reduce the impact of static electricity on the operator.

[0044] The suction port 25 is located on one side of the die 27 and on the side of the bracket 20. It is connected to the built-in vacuum cleaner via a hose. The built-in vacuum cleaner (located inside the built-in vacuum cleaner cleaning door 13) continuously sucks up the dust, short fibers and tiny debris generated during the cutting process through the suction port 25, keeping the inside of the machine clean, preventing dust accumulation from affecting the operation of the transmission components, and improving the working environment. The machine body 1 is provided with a built-in vacuum cleaner cleaning door 13 on one side of the discharge port 14. The vacuum cleaner inside the built-in vacuum cleaner cleaning door 13 is connected to the suction port 25. The built-in vacuum cleaner cleaning door 13 is located on the side of the machine body 1 located at the discharge port 14. After opening, the dust collection box of the built-in vacuum cleaner can be taken out for cleaning.

[0045] A USB interface 2 and a power socket 5 are respectively provided on one side of the main body 1, and an electrical maintenance port 4 for servo motor 21 is provided on the side of the USB interface 2 and the power socket 5.

[0046] The front of the main body 1 is equipped with a power button 6, a stop button 7 and a start button 8, and a touch screen 11 is located on one side of the power button 6, the stop button 7 and the start button 8.

[0047] The bracket 20 is provided with an outer shell, and the two sides of the outer shell are respectively provided with a die observation door 3 and a die maintenance door 12.

[0048] Digital positioners 9 are respectively provided on both sides of the top of the bracket 20, and an adjustment knob 10 is threadedly connected to the top of the bracket 20. The adjustment knob 10 is located on the top of the digital positioners 9.

[0049] The bottom of the adjusting knob 10 is rotatably connected to the top of the connecting blocks on both sides of the pressure roller 28, and the pressure roller 28 is slidably connected to the inner wall of the bracket 20 through the connecting blocks on both sides.

[0050] The touch screen 11 is located on the front of the machine body 1 for human-machine interaction. Operators can set the cutting speed, motor operating parameters, etc. through the touch screen 11 and monitor the equipment status in real time. This is existing technology. The power button 6 controls the power supply of the whole machine. The stop button 7 and the start button 8 are used for emergency stop and start control of the servo motor 21.

[0051] USB interface 2 can be used to export device operation logs or update control programs. Power socket 5 is used to connect an external AC220V power supply. Electrical inspection port 4 is located on one side of USB interface 2 and power socket 5. After opening, the servo motor 21 and electrical circuits can be inspected and maintained. The die observation door 3 and die maintenance door 12 are located on both sides of the outer shell of the machine body 1. They are used to observe the operating status of the die 27 and to replace or clean the die 27, respectively.

[0052] Digital positioners 9 are located on both sides of the top of the bracket 20 to accurately display the position of the pressure roller 28 or the gap value between the die 27 and the blade rest 26. The digital positioners 9 can be digital display dial indicators or electronic displacement sensors, which operators can use for fine adjustments.

[0053] The adjustment knob 10 is threaded to the top of the bracket 20 and located above the digital positioner 9. The bottom of the adjustment knob 10 is rotatably connected to the top of the connecting blocks on both sides of the pressure roller 28. When the adjustment knob 10 is rotated, the connecting blocks drive the pressure roller 28 to move up and down, thereby changing the pressure of the pressure roller 28 on the die 27, and thus finely adjusting the engagement depth between the die 27 and the die rest 26. The adjustment knob 10, in conjunction with the digital positioner 9, can achieve precise control of the sample preparation accuracy and ensure the consistency of the fabric scrap size.

[0054] Working Principle: First, connect the equipment to AC220V power and press the power button 6 to start. Set the cutting speed (e.g., 3000mm / min) via the touch screen 11. Rotate the adjustment knob 10 according to the thickness of the sample to be cut, so that the gap between the die 27 and the blade rest 26 reaches a suitable value. At the same time, observe the position parameters displayed on the digital positioner 9. Turn on the built-in vacuum cleaner and electrostatic meter 29. The operator feeds the textile sample to be cut (width not exceeding 110mm) flat into the feed inlet 15 until the front end of the sample enters the meshing area between the die 27 and the blade rest 26. Press the start button 8, and the servo motor 21 starts to rotate. The power is transmitted through the planetary reducer 22, drive sprocket 17, and chain 18 to the driven sprocket 19, which drives the blade rest 26 to rotate. The drive gear 23 at one end of the blade rest 26 meshes with the driven gear 24, causing the blade rest 26 to rotate. The die 27 and the blade rest 26 rotate in opposite directions. The sample is drawn between the die 27 and the blade rest 26 and is rolled into uniform small squares of 5mm×5mm by the interlocking action of the annular blade and the shearing groove. During the shearing process, the electrostatic meter 29 continuously releases ion wind to neutralize the static electricity generated by the friction between the fabric and the die 26, preventing the fabric scraps from sticking together. At the same time, the built-in vacuum cleaner removes the dust and short fibers generated through the suction port 25 in a timely manner, keeping the inside of the machine clean. The cut fabric scraps are pushed to the discharge port 14 as the die 27 and the blade rest rotate, and are discharged from the discharge port 14 into the collection container below. When all samples have been cut, press the stop button 7 to stop the servo motor 21. Open the built-in vacuum cleaner cleaning door 13 periodically to remove the dust collection box and clean the dust. Open the die maintenance door 12 to clean or replace the die 27 and the blade rest 26.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sample preparation shredder for detecting the pH value of textiles, comprising a machine body (1), characterized in that, Also includes: The feed inlet (15) and the discharge outlet (14) are located on both sides of the top of the machine body (1). A bracket (20) is fixedly connected inside the body (1). A servo motor (21) is fixedly connected to the bottom of the inner cavity of the bracket (20). A planetary reducer (22) is provided at the output end of the servo motor (21). A drive sprocket (17) is fixedly connected to the output end of the planetary reducer (22). A chain (18) is driven to the outside of the drive sprocket (17). A tension sprocket (16) is provided on one side of the chain (18). A driven sprocket (19) is driven to the drive sprocket (17) through the chain (18). A blade rest (26) is fixedly connected to the shaft of the driven sprocket (19). A blade die (27) is provided above the blade rest (26). A dust extraction port (25) is provided on one side of the die (27) and on the side of the bracket (20), and an electrostatic meter (29) is provided on one side of the die (27).

2. The sample preparation shredder for textile pH value testing according to claim 1, characterized in that: The blade rest (26) is rotatably connected inside the bracket (20), and a drive gear (23) is fixedly connected to one end of the blade rest (26).

3. A sample preparation shredder for detecting the pH value of textiles according to claim 2, characterized in that: The drive gear (23) is meshed with a driven gear (24) on its outer side, and the shaft of the driven gear (24) is fixedly connected to one end of the die (27).

4. A sample preparation shredder for detecting the pH value of textiles according to claim 1, characterized in that: The die (27) is rotatably connected inside the bracket (20), and a pressure roller (28) is provided on the top of the die (27).

5. A sample preparation shredder for detecting the pH value of textiles according to claim 1, characterized in that: The machine body (1) is provided with a USB interface (2) and a power socket (5) on one side, and an electrical inspection port (4) for inspecting the servo motor (21) is provided on the side of the USB interface (2) and the power socket (5).

6. A sample preparation shredder for detecting the pH value of textiles according to claim 1, characterized in that: The front side of the body (1) is provided with a power button (6), a stop button (7) and a start button (8), and a touch screen (11) is provided on one side of the power button (6), the stop button (7) and the start button (8).

7. A sample preparation shredder for detecting the pH value of textiles according to claim 1, characterized in that: The machine body (1) is provided with a built-in vacuum cleaner cleaning door (13) on one side of the discharge port (14), and the vacuum cleaner inside the built-in vacuum cleaner cleaning door (13) is connected to the vacuum port (25).

8. A sample preparation shredder for detecting the pH value of textiles according to claim 1, characterized in that: The bracket (20) is provided with an outer shell, and the two sides of the outer shell are respectively provided with a die observation door (3) and a die maintenance door (12).

9. A sample preparation shredder for detecting the pH value of textiles according to claim 4, characterized in that: Digital positioners (9) are respectively provided on both sides of the top of the bracket (20), and an adjustment knob (10) is threadedly connected to the top of the bracket (20). The adjustment knob (10) is located on the top of the digital positioner (9).

10. A sample preparation shredder for detecting the pH value of textiles according to claim 9, characterized in that: The bottom of the adjustment knob (10) is rotatably connected to the top of the connecting blocks on both sides of the pressure roller (28), and the pressure roller (28) is slidably connected to the inner wall of the bracket (20) through the connecting blocks on both sides.