Sampling knife assembly and sampling device
By aligning the sampling tool with the shaft assembly and wedge ring structure, the problem of ensuring coaxiality during the sampling tool assembly process is solved, improving assembly efficiency and safety, and simplifying the sampling tool replacement process.
Patent Information
- Application Number
- CN202422514671.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-10-17
AI Technical Summary
In existing rubber tire and product factories, the sampling knife may chip when it collides with foreign objects during sampling, and the assembly process is inefficient, making it difficult to ensure the coaxiality of the upper knife, pressure plate, and lower knife.
When the upper and lower mounting bases are fixed by the alignment kit, the sampling knife is aligned. The coaxiality is improved by the wedge ring structure, including the cooperation of the first and second wedge rings with the sampling knife, the upper mounting base and the lower mounting base. Precise alignment is achieved by using threaded connectors and stepped structures.
It improves the coaxiality and efficiency of the sampling blade during assembly, reduces the risk of blade collision, simplifies the assembly process, and facilitates the replacement and adjustment of the sampling blade.
Smart Images
Figure CN223597236U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of rubber production, in particular to a sampling cutter assembly and a sampling device. BACKGROUND
[0002] In the mixing process of a rubber tire and product factory, each batch of rubber material needs to be sampled and inspected. Due to abnormal conditions, there may be hard impurities such as metal in the rubber, which causes the cutter to collide with the foreign matter during sampling, resulting in blade collapse. As a result, the cutter needs to be replaced over time. However, since the rubber material needs to be cut, the gap between the upper cutter and the lower cutter is extremely small. The existing solution is to connect the cutter and the cutter seat only by screws. However, during installation, a special tool needs to be used for installation, and after installation, the position of the cutter needs to be adjusted to ensure the coaxiality of the upper cutter, the pressing plate and the lower cutter. If the adjustment is not proper, there is a risk of cutter collision due to the small gap, and this process is very inefficient. CONTENT OF THE UTILITY MODEL
[0003] The utility model aims to provide a sampling cutter assembly and a sampling device to improve the assembly effect of the sampling cutter.
[0004] The sampling cutter assembly provided by the application comprises a coaxial upper mounting seat and a lower mounting seat, a shaft alignment assembly nested outside the lower mounting seat, and a sampling cutter sleeved outside the shaft alignment assembly.
[0005] The upper mounting seat and the lower mounting seat are fixedly connected through a threaded connecting piece.
[0006] The shaft alignment assembly comprises a first wedge-shaped ring and a second wedge-shaped ring, and the first wedge-shaped ring and the second wedge-shaped ring are coaxial with the upper mounting seat.
[0007] The wedge-shaped surfaces of the first wedge-shaped ring and the second wedge-shaped ring are pressed against each other; the second right-angled surface and the first right-angled surface of the first wedge-shaped ring are pressed against the upper mounting seat; the second right-angled surface of the second wedge-shaped ring is pressed against the lower mounting seat, and the first right-angled surface of the second wedge-shaped surface is pressed against the sampling cutter.
[0008] In the above technical solution, the shaft alignment assembly is used to align the sampling cutter when the upper mounting seat and the lower mounting seat are fixed, thereby improving the coaxiality of the sampling cutter and the upper mounting seat during assembly.
[0009] In a specific implementation, the outer side wall of the upper mounting seat has a first stepped structure.
[0010] The second right-angled surface of the first wedge-shaped ring is pressed against the stepped surface of the first stepped structure, and the first right-angled surface is pressed against the vertical surface of the first stepped structure.
[0011] In one specific implementation, the lower mounting base comprises a base body and a shoulder fixedly connected with the base body.
[0012] The second right-angle surface of the second wedge-shaped ring abuts against the shoulder.
[0013] In one specific implementation, the inner wall of the sampling knife is provided with a second step structure; the second right-angle surface of the second wedge-shaped ring abuts against the step surface of the second step structure.
[0014] In one specific implementation, the sampling knife and the lower mounting base are in clearance fit.
[0015] In one specific implementation, the first wedge-shaped ring comprises a plurality of first wedge-shaped blocks arranged in a ring shape at intervals;
[0016] The second wedge-shaped ring comprises a plurality of second wedge-shaped blocks arranged in a ring shape at intervals, and the plurality of first wedge-shaped blocks correspond one-to-one to the plurality of second wedge-shaped blocks.
[0017] In one specific implementation, the first wedge-shaped ring is fixedly connected with the upper mounting base.
[0018] In one specific implementation, the upper mounting base is provided with a plurality of through holes, and the lower mounting base is provided with a threaded hole corresponding to each through hole;
[0019] Further comprising a bolt corresponding to each through hole and threadedly connected with the corresponding threaded hole.
[0020] In the second aspect, the sampling device comprises a support and the sampling knife assembly according to any one of the above technical solutions.
[0021] In the above technical solution, the sampling knife is aligned with the upper mounting base when the upper mounting base and the lower mounting base are fixed by using the shaft alignment kit, thereby improving the coaxiality of the sampling knife and the upper mounting base during assembly. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 A sectional view of the sampling knife provided by the embodiment of the present application;
[0023] Figure 2 A sectional view of the sampling knife provided by the embodiment of the present application; Figure 1 A local enlarged view of A in FIG. 4;
[0024] Figure 3 A sectional view of the upper mounting base provided by the embodiment of the present application;
[0025] Figure 4 A sectional view of the lower mounting base provided by the embodiment of the present application;
[0026] Figure 5 A cross-sectional view of a sampling knife provided by an embodiment of the present application. DETAILED DESCRIPTION
[0027] In order to make the purposes, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings.
[0028] It should be noted that, unless otherwise defined, technical or scientific terms used in one or more embodiments of the present application should be understood as having the meaning commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first", "second", and similar terms used in one or more embodiments of the present application do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right", and the like are only used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.
[0029] To facilitate understanding of the sampling knife assembly provided by the embodiments of the present application, first, the application scenario thereof is described. The sampling knife assembly provided by the embodiments of the present application is applied to sampling rubber. In the prior art, when sampling rubber, a sampling knife is used to cut rubber to take samples from the rubber. However, in the current sampling knife, coaxiality with other components needs to be ensured during assembly. If the debugging is not proper, there is a risk of collision. Therefore, the embodiments of the present application provide a sampling knife assembly to improve the effect and assembly efficiency of the sampling knife during assembly. The specific drawings and embodiments will be described in detail below.
[0030] Reference Figure 1 , Figure 1 A cross-sectional view of a sampling knife assembly provided by an embodiment of the present application is shown. The sampling knife assembly provided by the embodiments of the present application mainly includes an upper mounting seat 10, a lower mounting seat 20, an alignment sleeve assembly 40, and a sampling knife 30. The upper mounting seat 10 and the lower mounting seat 20 are used to cooperate and fix the sampling knife 30, and the alignment sleeve assembly 40 is used to align the sampling knife 30, the upper mounting seat 10, and the lower mounting seat 20 to ensure the coaxiality of the sampling knife 30 with the upper mounting seat 10 during assembly. It should be understood that the upper mounting seat 10, the lower mounting seat 20, the alignment sleeve assembly 40, and the sampling knife 30 provided by the embodiments of the present application are not necessarily cylindrical structures. The specific structure of the sampling knife assembly provided by the embodiments of the present application will be described in detail below with reference to the drawings. Figure 1This application provides a detailed description of the structure of each part of the sampling knife assembly provided in the embodiments.
[0031] Continue to refer to Figure 1 and Figure 2 , Figure 2 for Figure 1 The enlarged view at point A shows that the upper mounting base 10 provided in this embodiment serves as the support structure for the entire sampling knife assembly. When the sampling knife assembly is in use, the upper mounting base 10 cooperates with other devices to fix the sampling knife 30. Therefore, it is necessary to ensure the coaxiality of the sampling knife 30 and the upper mounting base 10. When fixing the sampling knife 30, the lower mounting base 20 is required for fixation. Therefore, it is necessary to simultaneously ensure the coaxiality of the upper mounting base 10, the sampling knife 30, and the lower mounting base 20.
[0032] Combination Figure 1 As can be seen, in the final sampling knife assembly, the upper mounting base 10 and the lower mounting base 20 provided in this embodiment are coaxial and fixedly connected. Specifically, the upper mounting base 10 and the lower mounting base 20 are connected by threaded connectors, such as bolts or screws. However, when using threaded connectors for assembly, due to the lower machining accuracy of the threaded connectors, a certain deviation is unavoidable when the upper mounting base 10 and the lower mounting base 20 are connected, resulting in the upper mounting base 10 and the lower mounting base 20 not being coaxial.
[0033] Therefore, in this embodiment, a shaft alignment kit 40 is used to align the upper mounting base 10 and the sampling blade 30. Specifically, the shaft alignment kit 40 is fitted outside the lower mounting base 20, and the sampling blade 30 is fitted outside the shaft alignment kit 40; that is, the shaft alignment kit 40 is located between the lower mounting base 20 and the sampling blade 30. The axis of the shaft alignment kit 40 is parallel to the axis of the upper mounting base 10.
[0034] Continue to refer to Figure 1 The shaft assembly 40 is a wedge-shaped component. Specifically, the shaft assembly 40 includes a first wedge ring 41 and a second wedge ring 42, which are coaxial with the upper mounting base 10. In a specific configuration, the first wedge ring 41 and the second wedge ring 42 are nested, with the first wedge ring 41 located on the inner side and the second wedge ring 42 on the outer side, and the wedge-shaped surfaces of the first wedge ring 41 and the second wedge ring 42 abut against each other. Furthermore, the first wedge ring 41 and the second wedge ring 42 also have two right-angled surfaces, which are named the first right-angled surface and the second right-angled surface for ease of description. Figure 1 If the placement direction of the sampling blade assembly is taken as the reference direction, then the first right-angled surface is a vertical surface, and the second right-angled surface is a horizontal surface.
[0035] When the shaft sleeve 40 is matched with the upper mounting seat 10, the lower mounting seat 20 and the sampling cutter 30 respectively, the two vertical faces of the first wedge ring 41 are pressed against the upper mounting seat 10, that is, the second right-angled face and the first right-angled face of the first wedge ring 41 are pressed against the upper mounting seat 10. The pressing refers to the pressing after the final assembly of the upper mounting seat 10 and the lower mounting seat 20. That is, the upper mounting seat 10 has two right-angled faces matched with the first wedge ring 41, that is, the right-angled faces are matched one by one, so that the right-angled faces can be fitted when the two components are matched, and finally the right-angled faces are pressed and matched after the complete assembly of the sampling cutter 30.
[0036] The two right-angled faces of the second wedge ring 42 are matched with the sampling cutter 30 and the lower mounting seat 20 respectively. Specifically, the second right-angled face of the second wedge ring 42 is pressed against the lower mounting seat 20, and the first right-angled face of the second right-angled face is pressed against the sampling cutter 30.
[0037] In the assembly, the shaft sleeve 40 is sleeved on the lower mounting seat 20, then the sampling cutter 30 is sleeved on the shaft sleeve 40, and the lower mounting seat 20 and the upper mounting seat 10 are closed together. The first wedge ring 41 of the shaft sleeve 40 is sleeved on the upper mounting seat 10 (right-angled face matching). The threaded connecting piece is connected with the lower mounting seat 20 after passing through the upper mounting seat 10. Because there is a gap between the threaded connecting piece and the assembly hole of the upper mounting seat 10 and the lower mounting seat 20, the upper mounting seat 10 and the lower mounting seat 20 are offset, and in this state, the first wedge ring 41 and the second wedge ring 42 do not tension the sampling cutter 30. Then the threaded connecting piece is tightened. With the tightening of the threaded connecting piece, the lower mounting seat 20 moves towards the upper mounting seat 10. At this time, along the axial direction of the upper mounting seat 10, the lower mounting seat 20 drives the second wedge ring 42 to move towards the upper mounting seat 10. The first wedge ring 41 and the second wedge ring 42 increase in the radial direction through the matching of the wedge faces, and tension the sampling cutter 30. Because the first wedge ring 41 and the second wedge ring 42 are coaxial, and the first wedge ring 41 is coaxial with the upper mounting seat 10, therefore, in the process of fixing the lower mounting seat 20 and the upper mounting seat 10, the second wedge ring 42 drives the sampling cutter 30 to be coaxial with the upper mounting seat 10.
[0038] As can be seen from the above description, the sampling cutter assembly provided by the embodiment of the application improves the coaxiality of the sampling cutter 30 with the upper mounting seat 10 during assembly by using the shaft sleeve 40 to align the sampling cutter 30 when the upper mounting seat 10 and the lower mounting seat 20 are fixed. In addition, in the above scheme, the sampling cutter 30 does not need to be additionally aligned, and the alignment of the sampling cutter 30 can be realized during the assembly process. The effect of the sampling cutter 30 during alignment and the assembly efficiency are improved. In addition, when the sampling cutter 30 needs to be replaced, the sampling cutter 30 can be conveniently replaced without additional adjustment.
[0039] Exemplarily, when the upper mounting seat 10 is fixedly connected with the lower mounting seat 20, a plurality of through holes 11 are arranged on the upper mounting seat 10, and a threaded hole 23 corresponding to each through hole 11 is arranged on the lower mounting seat 20; in addition, the sampling assembly further comprises a bolt corresponding to each through hole 11, and the bolt is threadedly connected with the corresponding threaded hole 23.
[0040] With reference to Figure 3 shown, Figure 3 A sectional view of the upper mounting seat 10 is shown. The outer side wall of the upper mounting seat 10 provided by the embodiment of the present application has a first stepped structure 12, which forms a right angle surface matched with the first wedge-shaped ring 41. Specifically, when the upper mounting seat 10 is fixed with the lower mounting seat 20, the second right angle surface of the first wedge-shaped ring 41 abuts against the stepped surface of the first stepped structure 12, and the first right angle surface abuts against the vertical surface of the first stepped structure 12. That is, the positioning and matching of the first wedge-shaped ring 41 and the upper mounting seat 10 are realized through the stepped structure, so as to ensure the coaxiality of the sampling knife 30 and the upper mounting seat 10 when the second wedge-shaped ring 42 moves.
[0041] As an optional solution, when the first wedge-shaped ring 41 is sleeved on the upper mounting seat 10, the first wedge-shaped ring 41 is also sleeved on the lower mounting seat 20. That is, the first right angle surface of the first wedge-shaped ring 41 is also sleeved on the lower mounting seat 20 and abuts against the lower mounting seat 20, so as to ensure that the lower mounting seat 20 is also aligned with the upper mounting seat 10 when the alignment assembly 40 aligns the sampling knife 30 and the upper mounting seat 10.
[0042] With reference to Figure 4 , Figure 4 A sectional view of the lower mounting seat 20 is shown. The lower mounting seat 20 comprises a seat body 21 and a shoulder 22, which is arranged on the seat body 21 and fixedly connected with the seat body 21. In an embodiment, the seat body 21 and the shoulder 22 are integrally prepared.
[0043] When the second wedge-shaped ring 42 is aligned with the lower mounting seat 20, the second right angle surface of the second wedge-shaped ring 42 abuts against the shoulder 22. In this way, when the lower mounting seat 20 is mounted with the upper mounting seat 10, the shoulder 22 can push the second wedge-shaped ring 42 to move relative to the first wedge-shaped ring 41, so as to tension the sampling knife 30 and align the sampling knife 30.
[0044] With reference to Figure 5 , Figure 5A structural schematic diagram of the sampling knife 30 is shown. The inner wall of the sampling knife 30 is provided with a second step structure 31 when cooperating with the second wedge ring 42, wherein the second right-angled surface of the second wedge ring 42 abuts against the step surface of the second step structure 31. That is, when the second wedge ring 42 cooperates with the sampling knife 30, the first right-angled surface and the second right-angled surface of the second wedge ring 42 are both in abutment with the sampling knife 30, so as to ensure the coaxiality of the sampling knife 30 with the second wedge ring 42 and improve the precision of the sampling knife 30 during assembly.
[0045] With reference to the foregoing Figure 1 It can be seen that, in the embodiment of the present application, the sampling knife 30 is in clearance fit with the lower mounting seat 20, so as to increase the space between the lower mounting seat 20 and the sampling knife 30, thereby ensuring sufficient assembly space for the shaft sleeve 40.
[0046] In the embodiment of the present application, the first wedge ring 41 and the second wedge ring 42 have different structures. For example, the first wedge ring 41 and the second wedge ring 42 can both be an integral annular structure. Alternatively, the first wedge ring 41 and the second wedge ring 42 can have a split structure. For example, the first wedge ring 41 includes a plurality of first wedge blocks arranged in an annular array at intervals; the second wedge ring 42 includes a plurality of second wedge blocks arranged in an annular array at intervals, and the plurality of first wedge blocks correspond one-to-one to the plurality of second wedge blocks. The alignment of the sampling knife 30 is realized by cooperation of the corresponding first wedge blocks and second wedge blocks.
[0047] It should be understood that, in an implementable scheme, the first wedge ring 41 is fixedly connected with the upper mounting seat 10. For example, the first wedge ring 41 and the upper mounting seat 10 can be integrally cast, or fixedly connected by adhesive bonding or other different manners.
[0048] Alternatively, the second wedge ring 42 can also be fixedly connected with the sampling knife 30. For example, by integrally casting or adhesive bonding.
[0049] The embodiment of the present application also provides a sampling device, which comprises a support and the sampling knife assembly of any one of the above.
[0050] In the above technical solution, the sampling knife assembly provided by the embodiment of the present application improves the coaxiality of the sampling knife 30 with the upper mounting seat 10 during assembly by using the shaft sleeve 40 to align the sampling knife 30 when the upper mounting seat 10 and the lower mounting seat 20 are fixed.
[0051] It is intended that all such additional substitutions, modifications and variations be included within the scope of the application, the general principles and specific embodiments described herein are intended to be illustrative only and not restrictive. Accordingly, all such modifications and variations without departing from the spirit and scope of the present disclosure are intended to be included herein.
[0052] The above description is only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A sampling knife assembly comprising: The sampling knife assembly comprises a coaxial upper mounting base and a lower mounting base, a shaft sleeve set nested outside the lower mounting base, and a sampling knife sleeved outside the shaft sleeve set. The upper mounting base and the lower mounting base are fixedly connected through a threaded connecting piece. The shaft sleeve set comprises a first wedge-shaped ring and a second wedge-shaped ring, and the first wedge-shaped ring and the second wedge-shaped ring are coaxial with the upper mounting base. The wedge-shaped surfaces of the first wedge-shaped ring and the second wedge-shaped ring abut against each other, the second right-angled surface and the first right-angled surface of the first wedge-shaped ring abut against the upper mounting base, the second right-angled surface of the second wedge-shaped ring abuts against the lower mounting base, and the first right-angled surface of the second wedge-shaped ring abuts against the sampling knife.
2. The sampling knife assembly of claim 1, wherein, The outer sidewall of the upper mounting base has a first stepped structure. The second right-angled surface of the first wedge-shaped ring abuts against the stepped surface of the first stepped structure, and the first right-angled surface abuts against the vertical surface of the first stepped structure.
3. The sampling knife assembly of claim 2, wherein, The lower mounting base comprises a seat body and a shoulder fixedly connected with the seat body. The second right-angled surface of the second wedge-shaped ring abuts against the shoulder.
4. The sampling knife assembly of claim 2, wherein, The inner wall of the sampling knife is provided with a second stepped structure, and the second right-angled surface of the second wedge-shaped ring abuts against the stepped surface of the second stepped structure.
5. The sampling knife assembly of claim 1, wherein, The sampling knife and the lower mounting base are clearance-fitted.
6. The sampling knife assembly of claim 1, wherein, The first wedge-shaped ring comprises a plurality of first wedge-shaped blocks arranged in a ring shape at intervals. The second wedge-shaped ring comprises a plurality of second wedge-shaped blocks arranged in a ring shape at intervals, and the plurality of first wedge-shaped blocks correspond one-to-one to the plurality of second wedge-shaped blocks.
7. The sampling knife assembly of claim 1, wherein, The first wedge-shaped ring is fixedly connected with the upper mounting base.
8. The sampling knife assembly of claim 1, wherein, The upper mounting base is provided with a plurality of through holes, and the lower mounting base is provided with a threaded hole corresponding one-to-one to each through hole. The sampling knife assembly further comprises a bolt corresponding one-to-one to each through hole, and the bolt is threadedly connected with the corresponding threaded hole.
9. A sampling device, characterized by The sampling knife assembly comprises a support and the sampling knife assembly according to any one of claims 1-8 connected with the support.