Cutting device for sample strip for NOL ring

Abstract

The utility model provides a sample strip cutting device for an NOL ring. The sample strip cutting device comprises a cutting machine and a feeding unit. The feeding assembly comprises a base, a sliding base and a discharging assembly. Wherein the base is provided with a sliding connection part; the sliding seat is slidably arranged on the sliding connection part. The discharging assembly is rotationally arranged on the sliding base, and the rotating axis is arranged in the vertical direction. The discharging assembly is provided with an annular cavity allowing a to-be-cut NOL ring to be embedded and further provided with a plurality of cutting seams which are annularly arranged around the axis of the discharging assembly at intervals and communicate with the annular cavity. And after rotating along with the discharging assembly, each cutting seam can correspond to a cutting part on the cutting machine. According to the sample strip cutting device for the NOL ring, through the arrangement of the annular cavity, it can be guaranteed that the NOL ring is wrapped, the situation that the NOL ring is scattered after being cut for the first time is avoided, the cutting effect of follow-up cutting is guaranteed, and practicability is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of sample strip cutting, and in particular relates to a sample strip cutting device for a NOL ring. Background Art

[0002] As an important performance indicator of the interlaminar characteristics of composite materials, interlaminar shear strength can reflect the strength of the interface between the composite matrix and the reinforcement. The commonly used test method for the apparent interlaminar shear strength of composite materials is the short beam shear method. According to the test standard, a NOL ring with a diameter of 150mm, a thickness of 3mm, and a width of 6mm needs to be cut into a spline with a certain arc length as a specimen.

[0003] In the prior art, the cutting device used for cutting the NOL ring sample strip usually includes a cutting machine and a workbench located in front of the cutting machine and capable of horizontal sliding. The workbench has a circular surface for the NOL ring to be cut, and the NOL ring is driven to move to the cutting machine through the workbench to achieve the cutting of the NOL ring. Although this method can achieve the cutting of the NOL ring, in actual use, because the NOL ring is set on the circular surface of the workbench (the cutting process generally requires two cuts to take a section of the sample strip, and three cuts to take two sections of the sample strip), after the first cutting of the NOL ring, due to the tension of the NOL ring itself, the NOL ring will spread outward, and a gap will appear between it and the circular surface, and then it cannot be stably set on the circular surface. The subsequent cutting work will have a relatively strong vibration, or the cutting position is inaccurate, the cutting quality of the sample strip deteriorates, and the final sample strip sample has low regularity and poor practicality. Utility Model Content

[0004] The embodiment of the utility model provides a sample strip cutting device for a NOL ring, aiming to solve the problem of poor practicability of the existing NOL ring sample strip cutting device due to poor sample strip cutting quality.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a NOL ring sample strip cutting device, including a cutting machine and a feeding unit; wherein the feeding unit includes:

[0006] A base having a sliding connection portion;

[0007] A sliding seat, slidably disposed on the sliding connection portion;

[0008] A material discharge assembly is rotatably arranged on the slide seat, and the rotation axis is arranged along the vertical direction; the material discharge assembly has an annular cavity for embedding the NOL ring to be cut, and also has a plurality of cutting slots arranged in annular intervals around the axis of the material discharge assembly and connected to the annular cavity; each of the cutting slots can correspond to the cutting part on the cutting machine after the material discharge assembly rotates;

[0009] The slide seat drives the discharge assembly to approach the cutting machine, so that the cutting part enters the corresponding cutting seam to cut the NOL ring to be cut.

[0010] In a possible implementation, the discharge assembly includes:

[0011] A rotating base is located above the slide seat, and a rotating shaft rotatably connected to the slide seat is provided at the bottom end; the rotating base has a circular cavity with an open top and coaxially arranged with the rotating shaft; a plurality of first notches are provided on the rotating base, each of the first notches is arranged at an annular interval around the axis of the rotating shaft, and each of the first notches is arranged along the radial direction of the circular cavity and passes through the rotating base;

[0012] A cylindrical core is arranged in the circular cavity and fixedly connected to the rotating base; the cylindrical core and the inner wall of the circular cavity enclose an annular channel and a movable cavity located below the annular channel; the cylindrical core is provided with a plurality of second notches corresponding to each of the first notches;

[0013] A push structure is arranged in the circular cavity and connected to the cylindrical core, the push structure has an annular portion that can extend into the annular channel and can move vertically; the push structure is provided with a plurality of third notches corresponding to the first notches;

[0014] An annular top cover is detachably connected to the top end of the cylindrical core, and the annular top cover, the rotating base, the cylindrical core and the annular portion together form the annular cavity; the annular top cover is provided with a plurality of fourth notches corresponding to each of the first notches one by one, and the first notch is combined with the corresponding first notch, second notch and third notch to form the cutting seam.

[0015] In a possible implementation, the rotating base is a cylindrical structure.

[0016] In a possible implementation, at least two limiting columns are provided at the top of the cylindrical core, and the limiting columns are arranged in an annular manner around the axis of the cylindrical core, and a locking nut is connected to the top of each limiting column;

[0017] Wherein, the annular top cover is provided with at least two limiting holes for each of the limiting columns to pass through.

[0018] In a possible implementation, the cylindrical core is connected to the rotating base via a plurality of locking screws, and the locking screws are arranged in an annular manner around the axis of the cylindrical core;

[0019] Wherein, a plurality of sleeves are arranged at the bottom end of the cylindrical core, each sleeve is respectively sleeved on each locking screw, and the bottom end of each cylindrical core abuts against the bottom surface of the circular cavity.

[0020] In a possible implementation, the push structure includes:

[0021] A fixed ring is slidably arranged in the moving cavity, and the top end thereof extends into the annular channel, the fixed ring being the annular portion; the bottom end of the fixed ring is fixedly connected to the bottom plate, and the bottom plate is provided with a plurality of sliding holes slidably connected to the sleeves; each of the third notches is arranged on the fixed ring and the bottom plate;

[0022] The screw rod is rotatably arranged on the cylindrical core along the vertical direction and is coaxially arranged with the cylindrical core. The bottom end of the screw rod extends into the movable cavity. The screw rod is spirally connected with the nut part arranged on the base plate to adjust the lifting and lowering movement of the base plate and the fixing ring.

[0023] In a possible implementation, an axial hole for the screw rod to pass through is provided on the cylindrical core, and a thrust bearing for the screw rod to be connected is provided in the axial hole.

[0024] In a possible implementation, the discharging assembly further includes an angle adjustment structure, and the angle adjustment structure includes:

[0025] A worm gear coaxially connected to the rotating shaft;

[0026] The worm is rotatably arranged on the sliding seat and meshes with the worm wheel.

[0027] In a possible implementation, a push-pull handle is provided on the slide seat.

[0028] In this implementation, the slide in the feeding unit can slide on the base, so that the material discharge assembly is close to the cutting machine. At the same time, the annular cavity on the material discharge assembly can ensure the embedding of the NOL ring to be cut, and the cutting part on the cutting machine can cut the NOL ring in the annular cavity through the corresponding cutting seam. Through the setting of the annular cavity, the wrapping of the NOL ring can be guaranteed, and the NOL ring can be prevented from being scattered after the first cutting, and the cutting effect of the subsequent cutting can be guaranteed, which is highly practical. In addition, with the rotation of the square material assembly, it can be ensured that each cutting seam corresponds to the cutting part respectively, which can ensure the segmented cutting of the NOL ring and the production of the sample strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of the structure of a NOL ring sample strip cutting device provided in an embodiment of the utility model;

[0030] Figure 2A schematic structural diagram of a feeding unit of a NOL ring sample strip cutting device provided in an embodiment of the utility model;

[0031] Figure 3 A schematic cross-sectional structural diagram of a feeding unit of a NOL ring sample strip cutting device provided in an embodiment of the utility model;

[0032] Figure 4 A schematic diagram of the structure of a fixed ring in a feeding unit of a sample strip cutting device for a NOL ring provided in an embodiment of the utility model;

[0033] Description of reference numerals:

[0034] 10. Cutting machine;

[0035] 20. base; 21. sliding joint;

[0036] 30. Sliding seat; 31. Push-pull handle;

[0037] 40. Discharging assembly; 41. Rotating base; 42. Cylindrical core; 421. Limiting column; 422. Locking nut; 43. Pushing structure; 431. Fixing ring; 432. Bottom plate; 433. Screw; 44. Annular top cover; 45. Annular cavity; 46. Cutting slit; 47. Sleeve; 48. Locking screw;

[0038] 50. Angle adjustment structure; 51. Worm gear; 52. Worm. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0040] Please also read Figure 1 and Figure 2 , the sample strip cutting device for NOL rings provided by the utility model is now described. The sample strip cutting device for NOL rings includes a cutting machine 10 and a feeding unit. The feeding assembly includes a base 20, a slide 30 and a discharge assembly 40. The base 20 has a sliding portion 21. The slide 30 is slidably arranged on the sliding portion 21. The discharge assembly 40 is rotatably arranged on the slide 30, and the axis of rotation is arranged along the vertical direction. The discharge assembly 40 has an annular cavity 45 for embedding the NOL ring to be cut, and also has a plurality of cutting slits 46 arranged at annular intervals around the axis of the discharge assembly 40 and connected to the annular cavity 45. Each cutting slit 46 can correspond to the cutting portion on the cutting machine 10 after the discharge assembly 40 rotates.

[0041] Specifically, the slide 30 drives the unloading assembly 40 to approach the cutting machine 10, so that the cutting part enters the corresponding cutting seam 46 to cut the NOL ring to be cut.

[0042] Compared with the prior art, the sample strip cutting device for NOL rings provided in this embodiment has a slide 30 in the feeding unit that can slide on the base 20, so that the material discharge component 40 is close to the cutting machine 10. At the same time, the annular cavity 45 on the material discharge component 40 can ensure that the NOL ring to be cut is embedded, and the cutting part on the cutting machine 10 can cut the NOL ring in the annular cavity 45 through the corresponding cutting slit 46. Through the setting of the annular cavity 45, the wrapping of the NOL ring can be guaranteed, and the situation that the NOL ring is scattered after the first cutting can be avoided, and the cutting effect of the subsequent cutting can be guaranteed, which is highly practical. In addition, with the rotation of the square material component, it can be ensured that each cutting slit 46 corresponds to the cutting part respectively, which can ensure the segmented cutting of the NOL ring and the production of the sample strip.

[0043] It should be noted that the cutting machine 10 can be a saw blade type, or a wire cutting, or a laser cutting, and these technologies are all existing technologies and will not be described in detail here.

[0044] In some embodiments, the discharge assembly 40 may be configured as follows: Figure 3 See the structure shown. Figure 3 The discharge assembly 40 includes a rotating base 41, a cylindrical core 42, a push structure 43 and an annular top cover 44. The rotating base 41 is located above the slide 30, and a rotating shaft rotatably connected to the slide 30 is provided at the bottom. The rotating base 41 has a circular cavity with an open top and coaxially arranged with the rotating shaft. The rotating base 41 is provided with a plurality of first notches, each of which is arranged at an annular interval around the axis of the rotating shaft, and each of the first notches is arranged along the radial direction of the circular cavity and passes through the rotating base 41. The cylindrical core 42 is arranged in the circular cavity and is fixedly connected to the rotating base 41. The cylindrical core 42 and the inner wall of the circular cavity enclose an annular channel and a movable cavity located below the annular channel. The cylindrical core 42 is provided with a plurality of second notches corresponding to each of the first notches. The push structure 43 is arranged in the circular cavity and connected to the cylindrical core 42. The push structure 43 has an annular portion that can be extended into the annular channel and can move vertically. The push structure 43 is provided with a plurality of third notches corresponding to the first notches. The annular top cover 44 is detachably connected to the top of the cylindrical core 42. The annular top cover 44, the rotating base 41, the cylindrical core 42 and the annular portion enclose an annular cavity 45. The annular top cover 44 is provided with a plurality of fourth notches corresponding to the first notches one by one. The first notch and the corresponding first notch, second notch, and third notch are combined to form a cutting slit 46.

[0045] The rotating base 41 can ensure rotation on the slide 30, and can ensure that each cutting seam 46 corresponds to the cutting part. The annular channel formed between the rotating base 41 and the cylindrical core 42 can ensure that the NOL ring is limited in the radial direction of the cylindrical core 42, ensuring the stability of the NOL ring during cutting. The push structure 43 can move in the moving cavity, and at the same time has an annular portion extending into the annular channel, which can clamp and limit the NOL ring in the vertical direction with the annular top cover 44, and can adjust the width of the annular cavity 45 to adapt to NOL rings of different widths, so as to avoid the NOL ring from moving up and down in the annular cavity 45. In addition, because the size of the annular cavity 45 is small, the NOL ring is not easy to take out. Therefore, after the NOL ring is cut into a sample strip, the NOL ring in the annular cavity 45 can be ejected by the push assembly after the annular top cover 44 is disassembled, so that the sample strip can be easily taken out.

[0046] The first notch, the second notch, the third notch and the fourth notch are mainly provided to ensure that the cutting part in the cutting machine 10 can pass through. The lengths thereof can be adaptively set according to the actual cutting part, and will not be elaborated here.

[0047] In some embodiments, the rotating base 41 may be configured as follows: Figure 2 See the structure shown. Figure 2 The rotating base 41 is a cylindrical structure, which is easy to manufacture and can also facilitate cutting by the cutting machine 10 .

[0048] In some embodiments, the cylindrical core 42 may be formed as follows: Figure 2 See the structure shown. Figure 2 At least two limiting posts 421 are provided at the top of the cylindrical core 42 . The limiting posts 421 are arranged in an annular manner around the axis of the cylindrical core 42 . A locking nut 422 is connected to the top of each limiting post 421 .

[0049] The annular top cover 44 is provided with at least two limiting holes for the limiting columns 421 to pass through respectively.

[0050] The two limiting posts 421 can ensure that the annular top cover 44 is limited in the circumferential direction, ensure that each fourth notch on the annular top cover 44 can correspond to each first notch one by one, ensure the stability of the cutting seam 46, and further ensure the cutting effect.

[0051] In addition, the top end of the limiting column 421 may be provided with an external thread, and the annular top cover 44 may be locked by adapting the locking nut 422 to the limiting column 421, thereby ensuring the stability of the annular top cover 44 and ensuring the convenient disassembly and assembly of the annular top cover 44.

[0052] In some embodiments, the cylindrical core 42 may be formed as follows: Figure 3See the structure shown. Figure 3 The cylindrical core 42 is connected to the rotating base 41 through a plurality of locking screws 48 , and each locking screw 48 is arranged at an annular interval around the axis of the cylindrical core 42 .

[0053] A plurality of sleeves 47 are disposed at the bottom end of the cylindrical core 42 , and each sleeve 47 is sleeved on each locking screw 48 , respectively. The bottom end of each cylindrical core 42 abuts against the bottom surface of the circular cavity.

[0054] Each sleeve 47 can support the cylindrical core 42. This structure can ensure the formation of the movable cavity. At the same time, each locking screw 48 passes through the bolt hole set on the cylinder and then passes through each sleeve 47 to be threadedly connected with the bottom surface of the cylindrical cavity. This structure can also ensure the stability of the connection between the cylindrical core 42 and the rotating base 41. The structure is simple and practical.

[0055] In some embodiments, the push structure 43 may be configured as follows: Figure 2 and Figure 4 See the structure shown. Figure 2 and Figure 4 The push structure 43 includes a fixed ring 431 and a screw rod 433. The fixed ring 431 is slidably arranged in the movable cavity, and the top end extends into the annular channel. The fixed ring 431 is an annular portion. The bottom end of the fixed ring 431 is fixedly connected to the bottom plate 432, and the bottom plate 432 is provided with a plurality of sliding holes slidably connected to each sleeve 47. Each third notch is provided on the fixed ring 431 and the bottom plate 432. The screw rod 433 is rotatably arranged on the cylindrical core 42 along the vertical direction, and is coaxially arranged with the cylindrical core 42. The bottom end of the screw rod 433 extends into the movable cavity. The screw rod 433 is spirally connected with the nut part arranged on the bottom plate 432, and can adjust the lifting and lowering movement of the bottom plate 432 and the fixed ring 431.

[0056] The fixing ring 431 can be ensured to extend into the annular channel and support the NOL ring at the bottom of the annular channel, thereby ensuring the stability of the NOL ring. The bottom plate 432 connected to the bottom end of the fixing ring 431 can ensure sliding connection with each sleeve 47. At the same time, it is spirally connected with the screw rod 433 through the nut part, which can ensure that after the screw rod 433 rotates, the fixing ring 431 is driven to move up and down through the bottom plate 432 to adjust the width of the annular cavity 45 or eject the NOL ring in the annular cavity 45. The structure is simple and practical.

[0057] In addition, the sliding connection between the bottom plate 432 and each sleeve 47 can prevent the bottom plate 432 from circumferentially moving relative to the circular cavity, thereby ensuring the sliding stability of the bottom plate 432 and having strong practicality.

[0058] It should be noted that a knob may be provided at the top end of the lead screw to ensure the adjustment of the rotation of the lead screw 433 .

[0059] In some embodiments, the cylindrical core 42 may be formed as follows: Figure 2 See the structure shown. Figure 2 The cylindrical core 42 is provided with an axial hole for the screw rod 433 to pass through, and a thrust bearing for the screw rod 433 to be connected is provided in the axial hole.

[0060] The shaft hole can ensure the passage of the screw rod 433 , and the setting of the thrust bearing can ensure that the screw rod 433 can withstand a large axial force, thereby ensuring the stability of the position of the screw rod 433 and ensuring stable driving of the base plate 432 .

[0061] In some embodiments, the discharge assembly 40 may be configured as follows: Figure 2 and Figure 3 See the structure shown. Figure 2 and Figure 3 The material discharging assembly 40 further includes an angle adjustment structure 50, which includes a worm wheel 51 and a worm 52. The worm wheel 51 is coaxially connected to the rotating shaft. The worm 52 is rotatably disposed on the slide seat 30 and meshes with the worm wheel 51.

[0062] By adjusting the worm 52, the worm wheel 51 can be driven to rotate, thereby ensuring the rotation adjustment of the rotating shaft and the rotating base 41, ensuring the accuracy of the rotation angle, and at the same time ensuring the stability of the rotating base 41 during the cutting process to ensure the cutting quality.

[0063] It should be noted that a bearing may be provided between the rotating shaft and the sliding seat 30 to ensure stable rotation of the rotating base 41 .

[0064] In addition, a knob may be provided on the protruding end of the worm 52 to ensure convenient adjustment of the worm 52 .

[0065] In some embodiments, the slide 30 may be Figure 2 See the structure shown. Figure 2 A push-pull handle 31 is provided on the slide 30. The push-pull handle 31 can be held by a worker to drive the slide 30 to move so that the slide 30 moves close to the cutting machine 10 to facilitate the cutting process.

[0066] In this embodiment, the sliding part 21 can be two parallel sliding posts arranged at intervals, and corresponding sliding holes can be provided on the sliding seat 30. Of course, in order to prevent the sliding seat 30 from contacting the cutting machine 10, a limit block can be provided on the sliding post, or the length of the sliding post can be limited. This technology is well known to those skilled in the art and will not be described in detail here.

[0067] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sample strip cutting device for NOL rings, characterized in that: It includes a cutting machine and a feeding unit; wherein the feeding unit includes: A base having a sliding connection portion; A sliding seat, slidably disposed on the sliding connection portion; A material discharge assembly is rotatably arranged on the slide seat, and the rotation axis is arranged along the vertical direction; the material discharge assembly has an annular cavity for embedding the NOL ring to be cut, and also has a plurality of cutting slots arranged in annular intervals around the axis of the material discharge assembly and connected to the annular cavity; each of the cutting slots can correspond to the cutting part on the cutting machine after the material discharge assembly rotates; The slide seat drives the discharge assembly to approach the cutting machine, so that the cutting part enters the corresponding cutting seam to cut the NOL ring to be cut.

2. The NOL ring sample strip cutting device according to claim 1, characterized in that: The discharge assembly comprises: A rotating base is located above the slide seat, and a rotating shaft rotatably connected to the slide seat is provided at the bottom end; the rotating base has a circular cavity with an open top and coaxially arranged with the rotating shaft; a plurality of first notches are provided on the rotating base, each of the first notches is arranged at an annular interval around the axis of the rotating shaft, and each of the first notches is arranged along the radial direction of the circular cavity and passes through the rotating base; A cylindrical core is arranged in the circular cavity and fixedly connected to the rotating base; the cylindrical core and the inner wall of the circular cavity enclose an annular channel and a movable cavity located below the annular channel; the cylindrical core is provided with a plurality of second notches corresponding to each of the first notches; A push structure is arranged in the circular cavity and connected to the cylindrical core, the push structure has an annular portion that can extend into the annular channel and can move vertically; the push structure is provided with a plurality of third notches corresponding to the first notches; An annular top cover is detachably connected to the top end of the cylindrical core, and the annular top cover, the rotating base, the cylindrical core and the annular portion together form the annular cavity; the annular top cover is provided with a plurality of fourth notches corresponding to each of the first notches one by one, and the first notch is combined with the corresponding first notch, second notch and third notch to form the cutting seam.

3. The NOL ring sample strip cutting device according to claim 2, characterized in that: The rotating base is a cylindrical structure.

4. The NOL ring sample strip cutting device according to claim 2, characterized in that: At least two limiting columns are arranged at the top of the cylindrical core, and each limiting column is arranged in an annular manner around the axis of the cylindrical core, and a locking nut is connected to the top of each limiting column; Wherein, the annular top cover is provided with at least two limiting holes for each of the limiting columns to pass through.

5. The NOL ring sample strip cutting device according to claim 2, characterized in that: The cylindrical core is connected to the rotating base via a plurality of locking screws, and each of the locking screws is arranged at an annular interval around the axis of the cylindrical core; Wherein, a plurality of sleeves are arranged at the bottom end of the cylindrical core, each sleeve is respectively sleeved on each locking screw, and the bottom end of each cylindrical core abuts against the bottom surface of the circular cavity.

6. The NOL ring sample strip cutting device according to claim 5, characterized in that: The push structure comprises: A fixed ring is slidably arranged in the moving cavity, and the top end thereof extends into the annular channel, the fixed ring being the annular portion; the bottom end of the fixed ring is fixedly connected to the bottom plate, and the bottom plate is provided with a plurality of sliding holes slidably connected to the sleeves; each of the third notches is arranged on the fixed ring and the bottom plate; The screw rod is rotatably arranged on the cylindrical core along the vertical direction and is coaxially arranged with the cylindrical core. The bottom end of the screw rod extends into the movable cavity. The screw rod is spirally connected with the nut part arranged on the base plate to adjust the lifting and lowering movement of the base plate and the fixing ring.

7. The NOL ring sample strip cutting device according to claim 6, characterized in that: The cylindrical core is provided with an axial hole for the screw rod to pass through, and a thrust bearing for the screw rod to be connected is provided in the axial hole.

8. The NOL ring sample strip cutting device according to any one of claims 2 to 7, characterized in that: The discharging assembly further includes an angle adjustment structure, which includes: A worm gear coaxially connected to the rotating shaft; The worm is rotatably arranged on the sliding seat and meshes with the worm wheel.

9. The NOL ring sample strip cutting device according to claim 1, characterized in that: A push-pull handle is provided on the slide seat.

Images