Drop hammer fabric tear instrument calibration device

Abstract

The utility model discloses a kind of drop hammer type fabric tearing instrument calibration device, the utility model relates to fabric tearing instrument technical field.This kind of drop hammer type fabric tearing instrument calibration device, including bottom plate, calibration mechanism and tearing mechanism are provided with in bottom plate upper portion;Calibration mechanism includes cutting part and calibration part;Cutting part includes control frame and cutting knife, calibration part includes two adjusting plate and calibration block;Fixed sleeve is fixedly arranged on bottom plate top surface, fixed sleeve inner side and control frame outer wall are slidably connected, technical effect is that calibration mechanism is accurately positioned cutting by the sliding cooperation of fixed sleeve and control frame, bolt connection cutting knife, when gap is generated when control frame wears, adjusting structure, which is composed of adjusting plate, fixed frame and extruding screw rod, can be quickly separated and cutting knife position is adjusted according to calibration block, after completing calibration, re-adhering and fixing, the design can eliminate calibration error caused by component wear, and also has the characteristics of simple operation, flexible adjustment.

Description

Technical Field

[0001] This utility model relates to the field of fabric tearing instrument technology, specifically a falling weight type fabric tearing instrument calibration device. Background Technology

[0002] The pendulum fabric tear tester, also known as the Elmendorf tear tester, is a classic and traditional instrument. It measures the decrease in the pendulum's potential energy, converting this amount into the work required to tear the sample, and then calculates the average tearing force based on the original sample length. Due to its simple structure, ease of use, and stable test data, it remains widely used in many industries, including textiles, papermaking, and packaging.

[0003] Existing pendulum fabric tearing machines require a cutting blade for initial cutting during use. However, the position of the cutting blade may deviate over time, leading to errors in the cutting position and affecting the accuracy of fabric tearing. Therefore, a calibration device for a falling weight fabric tearing machine is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a calibration device for a falling-weight fabric tearing tester, which solves the problem that the position of the cutting blade may deviate during long-term use, leading to errors in the cutting position and affecting the accuracy of fabric tearing.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a base plate, and a calibration mechanism and a tearing mechanism are provided on the top of the base plate;

[0008] The calibration mechanism includes a cutting section and a calibration section;

[0009] The cutting section includes a control frame and a cutting blade, while the calibration section includes two adjustment plates and a calibration block.

[0010] A fixing sleeve is fixedly installed on the top surface of the base plate. The inner side of the fixing sleeve is slidably connected to the outer wall of the control frame. The outer wall of the control frame is bolted to the outer wall of the cutting blade by two bolts. The inner side of the fixing sleeve is slidably connected to the outer walls of two adjusting plates. The adjacent sides of the two adjusting plates are slidably connected to the outer wall of the control frame.

[0011] Preferably, the tearing mechanism includes a column, the bottom surface of which is fixedly connected to the top surface of the base plate. A connecting rod is fixedly provided on the outer wall of the column. A pendulum is rotatably sleeved on the outer wall of the connecting rod through a bearing seat. Two clamping frames are fixedly provided on the outer wall of the pendulum and the outer wall of the column, respectively. Two clamping plates are slidably provided on the inner sides of the two clamping frames. Two wedge-shaped grooves are opened on the inner sides of the two clamping frames, and two wedge-shaped blocks are slidably provided on the inner walls of the two wedge grooves. The top surfaces of the two wedge-shaped blocks are fixedly connected to the bottom surfaces of the two clamping plates, respectively.

[0012] Preferably, a connecting frame is fixedly provided on the top surface of the base plate, and the outer wall of the connecting frame is fixedly connected to the outer wall of the calibration block.

[0013] Preferably, a fixed frame is fixedly provided on the top surface of the base plate, the inner sides of the two adjusting plates are slidably connected to the outer wall of the fixed frame, two fixed brackets are fixedly provided on the outer walls of the two adjusting plates respectively, the inner sides of the two fixed brackets are slidably connected to the outer wall of the fixed frame, and two extrusion screws are threaded through the outer walls of the two fixed brackets respectively, extending to the inner side of the fixed frame.

[0014] Preferably, two limiting plates are fixedly provided on the opposite side of the two adjusting plates, and the opposite side of the two limiting plates slides through the inner side of the fixed sleeve and extends to the outer side of the fixed sleeve.

[0015] Preferably, the outer wall of the connecting rod is rotatably fitted with a pointer through a bearing seat two, and two adjusting screws are threaded through the outer walls of the two clamping frames, extending to the inner side of the two clamping frames. The two adjusting screws are rotatably connected to the outer walls of the two clamping plates through two bearing seats three.

[0016] (III) Beneficial Effects

[0017] This invention provides a calibration device for a falling weight type fabric tear tester. It has the following advantages:

[0018] (I) The calibration device for a falling weight fabric tearing tester has a calibration mechanism that achieves precise positioning and cutting by sliding fit between the fixed sleeve and the control frame and bolt connection of the cutting blade. When the control frame wears and gaps are generated, the adjustment structure composed of the adjustment plate, the fixed frame and the extrusion screw can be quickly disengaged and the position of the cutting blade can be adjusted according to the calibration block. After calibration, it can be re-fitted and fixed. This design can eliminate calibration errors caused by component wear and also has the characteristics of simple operation and flexible adjustment, effectively improving calibration accuracy and efficiency.

[0019] (II) The calibration device for a falling weight fabric tearing tester includes a tearing mechanism consisting of a clamping frame, a clamping plate, a wedge block, and an adjusting screw. The clamping structure can automatically adjust the clamping force according to the fabric material and thickness to achieve a uniform and firm clamping effect. The pendulum is rotated and mounted on the connecting rod via a bearing seat, enabling it to quickly tear the fabric with its own kinetic energy. At the same time, the pointer linked to it rotates via a bearing seat to visually display the swing amplitude of the pendulum and the tearing force on the fabric. This mechanism ensures the accuracy and reliability of the test data and improves the testing efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the calibration mechanism of this utility model;

[0022] Figure 3 This is a schematic diagram of the calibration block in the calibration mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the tearing mechanism of this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the tearing mechanism of this utility model.

[0025] In the diagram: 1. Base plate; 2. Calibration mechanism; 21. Control frame; 22. Fixing sleeve; 23. Cutting blade; 24. Adjusting plate; 25. Connecting frame; 26. Fixing frame; 27. Fixing frame; 28. Calibration block; 29. ​​Extrusion screw; 210. Limiting plate; 3. Tearing mechanism; 31. Column; 32. Connecting rod; 33. Pendulum; 34. Pointer; 35. Clamping frame; 36. Clamping plate; 37. Adjusting screw; 38. Wedge block. Detailed Implementation

[0026] 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.

[0027] Please see Figure 1-5 The present invention provides a technical solution: including a base plate 1, and a calibration mechanism 2 and a tearing mechanism 3 are arranged on the top of the base plate 1;

[0028] Calibration mechanism 2 includes a cutting section and a calibration section;

[0029] The cutting section includes a control frame 21 and a cutting blade 23, and the calibration section includes two adjustment plates 24 and a calibration block 28;

[0030] A fixing sleeve 22 is fixedly installed on the top surface of the base plate 1. The inner side of the fixing sleeve 22 is slidably connected to the outer wall of the control frame 21. The outer wall of the control frame 21 is bolted to the outer wall of the cutting blade 23 by two bolts. The inner side of the fixing sleeve 22 is slidably connected to the outer walls of two adjusting plates 24. The adjacent sides of the two adjusting plates 24 are slidably connected to the outer wall of the control frame 21. A connecting frame 25 is fixedly installed on the top surface of the base plate 1. The outer wall of the connecting frame 25 is fixedly connected to the outer wall of the calibration block 28. A fixing frame 27 is fixedly installed on the top surface of the base plate 1. The two adjusting plates 23... 4 The inner sides of the two plates 24 are slidably connected to the outer wall of the fixed frame 27. Two fixed brackets 26 are fixedly installed on the outer walls of the two adjusting plates 24 respectively. The inner sides of the two fixed brackets 26 are slidably connected to the outer wall of the fixed frame 27. Two extrusion screws 29 are threaded through the outer walls of the two fixed brackets 26 respectively and extend to the inner side of the fixed frame 27. Two limiting plates 210 are fixedly installed on the opposite side of the two adjusting plates 24 respectively. The opposite side of the two limiting plates 210 is slidably connected through the inner side of the fixed sleeve 22 and extends to the outer side of the fixed sleeve 22.

[0031] The tearing mechanism 3 includes a column 31, the bottom surface of which is fixedly connected to the top surface of the base plate 1. A connecting rod 32 is fixedly installed on the outer wall of the column 31. A pendulum 33 is rotatably sleeved on the outer wall of the connecting rod 32 through a bearing seat 1. Two clamping frames 35 are fixedly installed on the outer wall of the pendulum 33 and the outer wall of the column 31, respectively. Two clamping plates 36 are slidably installed on the inner sides of the two clamping frames 35. Two wedge-shaped grooves are opened on the inner sides of the two clamping frames 35. Two wedge-shaped blocks 38 are slidably installed on the inner walls of the two wedge grooves, respectively. The top surfaces of the two wedge-shaped blocks 38 are fixedly connected to the bottom surfaces of the two clamping plates 36, respectively. A pointer 34 is rotatably sleeved on the outer wall of the connecting rod 32 through a bearing seat 2. Two adjusting screws 37 are threaded through the outer walls of the two clamping frames 35 and extend to the inner sides of the two clamping frames 35. The sides of the two adjusting screws 37 near the two clamping plates 36 are rotatably connected to the outer walls of the two clamping plates 36 through two bearing seats 3, respectively.

[0032] In use, in the cutting section, the control frame 21 can slide along its inner wall inside the fixed sleeve 22, and the cutting blade 23 is bolted to the outer wall of the control frame 21 by two bolts. This connection method allows the cutting blade 23 to move with the control frame 21, thereby cutting the fabric.

[0033] After prolonged use, wear will cause a gap between the control frame 21 and the two adjusting plates 24. The two adjusting plates 24 can be adjusted to calibrate the control frame 21. During the calibration process, the cutting blade 23 is first moved to the calibration block 28, and then the two extrusion screws 29 are manually loosened. After the two extrusion screws 29 are loosened, the two adjusting plates 24 can be separated from the control frame 21, so that the position of the cutting blade 23 can be adjusted according to the calibration block 28. After the adjustment is completed, the two adjusting plates 24 are manually controlled to fit with the control frame 21. After the two adjusting plates 24 are fitted with the control frame 21, the two extrusion screws 29 are manually tightened. After the two extrusion screws 29 are tightened, the calibration of the control frame 21 and the cutting blade 23 is completed.

[0034] During the tear test, the fabric is placed in two clamping frames 35. By rotating the adjusting screw 37, which is rotatably connected to the clamping plate 36 through the bearing seat 3, the rotation of the adjusting screw 37 can be converted into the sliding of the clamping plate 36 in the clamping frame 35. As the clamping plate 36 slides, the wedge block 38 moves in the wedge groove, thereby clamping and fixing the fabric.

[0035] After the fabric is fixed, the pendulum 33 is swung to gain a certain kinetic energy. During the swing, the pendulum 33 strikes the fabric and tears it using its own kinetic energy. At the same time, the pointer 34 is rotated and mounted on the connecting rod 32 through the bearing seat. When the pendulum 33 swings, it will drive the pointer 34 to rotate. The rotation angle of the pointer 34 can reflect the swing amplitude of the pendulum 33 and the force that the fabric bears when it is torn, thus obtaining the tear performance data of the fabric.

[0036] 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.

[0037] 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 calibration device for a falling weight fabric tear tester, comprising a base plate (1), characterized in that: A calibration mechanism (2) and a tearing mechanism (3) are provided above the base plate (1); The calibration mechanism (2) includes a cutting section and a calibration section; The cutting section includes a control frame (21) and a cutting blade (23), and the calibration section includes two adjustment plates (24) and a calibration block (28); A fixing sleeve (22) is fixedly installed on the top surface of the base plate (1). The inner side of the fixing sleeve (22) is slidably connected to the outer wall of the control frame (21). The outer wall of the control frame (21) is bolted to the outer wall of the cutting blade (23) by two bolts. The inner side of the fixing sleeve (22) is slidably connected to the outer wall of the two adjusting plates (24). The two adjusting plates (24) are slidably connected to the outer wall of the control frame (21) on the side closest to each other.

2. The calibration device for a falling weight fabric tear tester according to claim 1, characterized in that: The tearing mechanism (3) includes a column (31), the bottom surface of the column (31) is fixedly connected to the top surface of the base plate (1), a connecting rod (32) is fixedly provided on the outer wall of the column (31), and a pendulum (33) is rotatably sleeved on the outer wall of the connecting rod (32) through a bearing seat. Two clamping frames (35) are fixedly provided on the outer wall of the pendulum (33) and the outer wall of the column (31), respectively. Two clamping plates (36) are slidably provided on the inner side of the two clamping frames (35), and two wedge-shaped grooves are opened on the inner side of the two clamping frames (35). Two wedge-shaped blocks (38) are slidably provided on the inner wall of the two wedge-shaped grooves, respectively. The top surface of the two wedge-shaped blocks (38) is fixedly connected to the bottom surface of the two clamping plates (36).

3. The calibration device for a falling weight fabric tear tester according to claim 1, characterized in that: A connecting frame (25) is fixedly installed on the top surface of the base plate (1), and the outer wall of the connecting frame (25) is fixedly connected to the outer wall of the calibration block (28).

4. The calibration device for a falling weight fabric tear tester according to claim 1, characterized in that: A fixed frame (27) is fixedly installed on the top surface of the base plate (1). The inner sides of the two adjustment plates (24) are slidably connected to the outer wall of the fixed frame (27). Two fixed brackets (26) are fixedly installed on the outer walls of the two adjustment plates (24). The inner sides of the two fixed brackets (26) are slidably connected to the outer wall of the fixed frame (27). Two extrusion screws (29) are threaded through the outer walls of the two fixed brackets (26) and extend to the inner side of the fixed frame (27).

5. The calibration device for a falling weight fabric tear tester according to claim 1, characterized in that: Two limiting plates (210) are fixedly provided on the opposite side of the two adjusting plates (24). The opposite side of the two limiting plates (210) slides through the inner side of the fixing sleeve (22) and extends to the outer side of the fixing sleeve (22).

6. The calibration device for a falling weight fabric tear tester according to claim 2, characterized in that: The outer wall of the connecting rod (32) is rotatably fitted with a pointer (34) through a bearing seat. The outer walls of the two clamping frames (35) are respectively threaded through with two adjusting screws (37) extending to the inner side of the two clamping frames (35). The two adjusting screws (37) are rotatably connected to the outer walls of the two clamping plates (36) through two bearing seats.

Images