Dustproof suction rod
By designing a dustproof cover in the vacuum suction rod to wrap the lower end of the spring suction rod, the problem of dust and lubricating oil drop caused by friction of the suction rod is solved, and the equipment cleanliness and product quality is improved.
Patent Information
- Application Number
- CN202421983707.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-15
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-15
AI Technical Summary
In the long-term use of existing vacuum suction rods, due to the friction of the spring telescopic structure, metal debris dust on the surface may cause lubricating oil to fall, affecting the cleanliness of the equipment and product quality.
A dust-proof suction rod is designed, adopting a combined structure of a spring suction rod and a dust-proof cover. The dust-proof cover wraps the lower end of the spring suction rod from bottom to top and can be deformed to capture falling dust and lubricating oil.
It effectively prevents dust and lubricating oil from falling off the surface of the suction rod, improves the cleanliness of the equipment and the quality of the product, and does not affect the movement performance of the suction rod.
Smart Images
Figure CN223000605U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of liquid crystal display panel processing, and particularly relates to a dust-proof suction rod. Background Art
[0002] A liquid crystal display panel is composed of an upper substrate and a lower substrate. A port area (abbreviated as a terminal area) for signal introduction is arranged at one or two edge positions of the lower substrate. In the prior art, the terminal area is first exposed by cutting with a cutter wheel, and then the liquid crystal display panel is transported by a transplanting arm in subsequent processes. The liquid crystal display panel is mainly adsorbed and fixed on the transplanting arm by a vacuum suction rod. Since it is necessary to transfer the liquid crystal display panel between different process equipment, in order to avoid pressing and damaging the glass surface of the liquid crystal display panel during the process of the transplanting arm contacting the carrying platform, the vacuum suction rod adopts a spring telescopic structure. When the transplanting arm presses down and contacts the glass surface, the spring telescopic structure provides buffering through telescoping.
[0003] However, with the long-term high-density telescoping of the spring telescopic structure, the outer suction rod and the inner suction rod of the vacuum suction rod rub against each other, resulting in a large amount of metal debris dust on the surface of the vacuum suction rod, posing a great risk to the cleanliness of the equipment and the quality of the product in subsequent processes. Similarly, the lubricating oil or grease coated inside the vacuum suction rod also has the risk of falling off due to the mutual friction between the outer suction rod and the inner suction rod of the vacuum suction rod. Summary of the Utility Model
[0004] In order to solve the above problems existing in the prior art, the utility model provides a dust-proof suction rod. The technical problems to be solved by the utility model are realized through the following technical solutions:
[0005] The utility model provides a dust-proof suction rod, including: a spring suction rod, a nozzle mounting mechanism, a dust-proof cover and a nozzle arranged in sequence along the vertical direction; the spring suction rod includes: an inner suction rod, an outer suction rod and a spring. The outer suction rod is sleeved outside the inner suction rod, and the inner suction rod and the outer suction rod can slide relatively along the vertical direction; the spring is sleeved outside the inner suction rod and is arranged between the lower ends of the inner suction rod and the outer suction rod along the vertical direction, and can be compressed along with the relative sliding between the inner suction rod and the outer suction rod; an air suction cavity penetrating through is arranged inside the inner suction rod; the nozzle mounting mechanism is threadedly connected to the inner suction rod, and an air suction hole is arranged through the inside thereof; the lower end of the dust-proof cover is detachably connected to the inner suction rod and the nozzle mounting mechanism respectively. The dust-proof cover extends upward along the vertical direction, surrounds the outside of the lower end of the inner suction rod and at least partially covers the outer suction rod; the dust-proof cover can be deformed, and the maximum outer diameter of the dust-proof cover is greater than the maximum outer diameter of the outer suction rod; a vacuum air suction hole is arranged through the nozzle, and the air suction cavity, the air suction hole and the vacuum air suction hole are communicated in sequence.
[0006] In an embodiment of the present utility model, a first step is provided at the lower end of the inner suction rod, a second step is provided at the lower end of the outer suction rod, and both ends of the spring are respectively located between the first step and the second step.
[0007] In an embodiment of the present utility model, the nozzle mounting mechanism includes: a first connecting portion, a second locking portion, and a third connecting portion connected in sequence. The first connecting portion is threadedly connected to the inner suction rod, and the third connecting portion is fixedly connected to the nozzle.
[0008] In an embodiment of the present utility model, a third step is further provided below the first step of the inner suction rod, and the lower end of the dust cover is located between the step surface of the third step and the upper surface of the second locking portion.
[0009] In an embodiment of the present utility model, an external thread is provided on the first connecting portion, and a matching internal thread is provided at the lower end of the suction cavity of the inner suction rod.
[0010] In an embodiment of the present utility model, the outer contour of the second locking portion is square or hexagonal.
[0011] In an embodiment of the present utility model, the dust cover includes: a receiving bowl, the lower end of the receiving bowl is located between the step surface of the third step and the upper surface of the second locking portion, and the dust cover extends upward in the vertical direction and the diameter gradually increases to form an inverted conical tube shape.
[0012] In an embodiment of the present utility model, the dust cover includes: a telescopic sheath, the lower end of the telescopic sheath is located between the step surface of the third step and the upper surface of the second locking portion, the dust cover extends upward in the vertical direction, and a plurality of recessed portions and a plurality of protruding portions are provided between the lower end and the upper end of the telescopic sheath. The diameter of the protruding portion is larger than that of the recessed portion, and the plurality of recessed portions and the plurality of protruding portions are alternately arranged and connected in sequence.
[0013] In an embodiment of the present utility model, the upper end of the telescopic sheath is a protruding portion.
[0014] In an embodiment of the present utility model, the inner diameter of the recessed portion is greater than or equal to the maximum outer diameter of the outer suction rod.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] For the dust-proof suction rod of the present utility model, the spring suction rod has a buffering effect and is not likely to damage the product when adsorbing the product, which is beneficial to ensuring the product yield. The dust cover wraps the lower end of the spring suction rod from bottom to top, and the dust cover can be deformed, which not only does not affect the up and down movement of the spring suction rod, but also effectively solves the problems of product pollution and equipment cleanliness caused by the wear of the suction rod or the dropping of lubricating oil.
[0017] The above description is only an overview of the technical solution of the present utility model. In order to better understand the technical means of the present utility model, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present utility model more obvious and understandable, the following provides preferred embodiments and, in conjunction with the accompanying drawings, details are described as follows. Description of the Drawings
[0018] Figure 1 FIG. is a schematic structural diagram of a dust-proof suction rod provided by an embodiment of the present utility model;
[0019] Figure 2 FIG. is a cross-sectional structural view of a dust-proof suction rod provided by an embodiment of the present utility model;
[0020] Figure 3 FIG. is a schematic structural diagram of another dust-proof suction rod provided by an embodiment of the present utility model;
[0021] Figure 4 FIG. is a cross-sectional structural view of another dust-proof suction rod provided by an embodiment of the present utility model.
[0022] Reference Numerals: 1 - spring suction rod; 11 - inner suction rod; 111 - suction cavity; 112 - first step; 113 - third step; 12 - outer suction rod; 121 - second step; 13 - spring; 2 - nozzle mounting mechanism; 21 - first connecting portion; 22 - second locking portion; 23 - third connecting portion; 24 - suction hole; 3 - dust-proof cover; 31 - receiving bowl; 32 - telescopic sheath; 4 - nozzle; 41 - vacuum suction hole. Detailed Description of the Preferred Embodiments
[0023] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the intended utility model purpose, the following provides a detailed description of a dust-proof suction rod according to the present utility model in conjunction with the accompanying drawings and specific embodiments.
[0024] The foregoing and other technical contents, features and effects of the present utility model can be clearly presented in the following detailed description in conjunction with the accompanying drawings. Through the description of the specific embodiments, a more in-depth and specific understanding of the technical means and effects adopted by the present utility model to achieve the intended purpose can be obtained. However, the accompanying drawings are only for reference and illustration, and are not used to limit the technical solution of the present utility model.
[0025] Embodiment 1
[0026] As Figure 1 and Figure 2As shown in the figure, the utility model provides a dust-proof suction rod, which comprises a spring suction rod 1, a nozzle mounting mechanism 2, a dust-proof cover 3 and a nozzle 4 arranged in sequence along the vertical direction. A communicating gas passage is arranged among the spring suction rod 1, the nozzle mounting mechanism 2 and the nozzle 4, and the nozzle 4 adsorbs on the glass surface of the liquid crystal display panel to facilitate fixation during transfer. The dust-proof cover 3 wraps the lower end of the spring suction rod 1 from bottom to top to prevent the powder or lubricating oil on the surface of the spring suction rod 1 from falling on the liquid crystal display panel or equipment below.
[0027] Specifically, as Figure 2 shown, the spring suction rod 1 comprises an inner suction rod 11, an outer suction rod 12 and a spring 13. The outer suction rod 12 is sleeved outside the inner suction rod 11, and the inner suction rod 11 and the outer suction rod 12 can slide relative to each other along the vertical direction; the spring 13 is sleeved outside the inner suction rod 11 and is arranged between the lower ends of the inner suction rod 11 and the outer suction rod 12 along the vertical direction, and can be compressed as the inner suction rod 11 and the outer suction rod 12 slide relative to each other. The nozzle mounting mechanism 2 is threadedly connected to the inner suction rod 11.
[0028] Further, a first step 112 is arranged at the lower end of the inner suction rod 11, a second step 121 is arranged at the lower end of the outer suction rod 12, and both ends of the spring 13 are respectively located between the first step 112 and the second step 121, that is, both ends of the spring 13 respectively abut against the surfaces between the first step 112 and the second step 121.
[0029] The principle is that the inner suction rod 11, the nozzle mounting mechanism 2 and the nozzle 4 are fixedly connected as a whole. When the nozzle 4 contacts the glass surface of the liquid crystal display panel, as the outer suction rod 12 moves downward, its second step 121 abuts against the upper end of the spring 13. Since the spring 13 is coaxially sleeved on the outer surface of the inner suction rod 11, under the guidance of the inner suction rod 11, the spring 13 is compressed downward along the vertical direction by the oppression of the outer suction rod 12, playing a buffering role. Similarly, as the outer suction rod 12 is lifted upward, the compression of the spring 13 gradually recovers and it is jacked up to achieve reset.
[0030] As Figure 2 shown, the nozzle mounting mechanism 2 comprises a first connecting part 21, a second locking part 22 and a third connecting part 23 which are connected in sequence. The first connecting part 21 is threadedly connected to the inner suction rod 11, and the third connecting part 23 is fixedly connected to the nozzle 4.
[0031] Specifically, an external thread is arranged on the first connecting part 21, and a matching internal thread is arranged at the lower end of the suction cavity 111 of the inner suction rod 11, that is, the first connecting part 21 is screwed into the suction cavity 111 of the inner suction rod 11 and fixed by threads.
[0032] Optionally, the outer contour of the second locking part 22 is square or hexagonal for easy locking.
[0033] As shown Figure 2 in the figure, the lower ends of the dust covers 3 are detachably connected to the inner suction rods 11 and the nozzle mounting mechanism 2 respectively. The dust covers 3 extend upward in the vertical direction. The dust covers 3 surround the outer sides of the lower ends of the inner suction rods 11 and at least partially cover the outer suction rods 12. The dust covers 3 can be deformed, and the maximum outer diameter of the dust covers 3 is greater than the maximum outer diameter of the outer suction rods 12. In other words, the projection of the spring suction rod 1 in the vertical direction falls within the projection of the dust cover 3 in the vertical direction.
[0034] It should be noted that in this embodiment, the dust cover 3 also has other specific implementation forms. The following is only an example. Taking a specific implementation form of the dust cover 3 as an example, it includes: a receiving bowl 31. The lower end of the receiving bowl 31 is located between the step surface of the third step 113 and the upper surface of the second locking portion 22. The dust cover 3 extends upward in the vertical direction and its diameter gradually increases to form an inverted conical cylinder. On this basis, the projection of the spring suction rod 1 in the vertical direction falls within the projection of the receiving bowl 31 in the vertical direction.
[0035] It can be understood that with the reciprocating movement between the inner suction rod 11, the outer suction rod 12 and the spring 13, metal debris dust will be generated on the friction surface, and lubricating oil or grease will also fall off. The inverted conical cylinder-shaped receiving bowl 31 wraps the lower end of the inner suction rod 11 from bottom to top and at least partially covers the outer suction rod 12. A gap is left between the inner side of the receiving bowl 31 and the inner suction rod 11 or the outer suction rod 12 for receiving the metal debris dust, lubricating oil or grease that falls from top to bottom. In addition, the spring 13 is also located within the vertical coverage range of the receiving bowl 31, that is, the areas where relatively frequent mutual friction occurs are all within the vertical coverage range of the receiving bowl 31.
[0036] To achieve vacuum adsorption, a through suction cavity 111 is provided inside the inner suction rod 11. Correspondingly, a suction hole 24 is provided through the inside of the nozzle mounting mechanism 2, and a vacuum suction hole 41 is provided through the inside of the nozzle 4. The suction cavity 111, the suction hole 24 and the vacuum suction hole 41 are sequentially connected to form a connected gas passage.
[0037] As Figure 2As shown, a third step 113 is further provided below the first step 112 of the inner suction rod 11, the lower end of the dust cover 3 is located between the step surface of the third step 113 and the upper surface of the second locking portion 22, and the lower end of the dust cover 3 is clamped between the inner suction rod 11 and the nozzle mounting mechanism 2. Since the first connecting portion 21 of the nozzle mounting mechanism 2 is threadedly connected to the inner suction rod 11, the deformable dust cover 3 is firmly clamped as the first connecting portion 21 is tightened. In addition, with use, if there is too much metal dust accumulated in the dust cover 3, or if it is aged or damaged, it can be quickly disassembled or replaced to ensure its working performance.
[0038] like Figure 3 and Figure 4 As shown, this embodiment also provides another specific implementation form of the dustproof suction rod, and its dust cover 3 includes: a telescopic sleeve 32, the lower end of the telescopic sleeve 32 is located between the step surface of the third step 113 and the upper surface of the second locking portion 22, the dust cover 3 extends upward in the vertical direction, and a plurality of recessed portions and a plurality of protruding portions are arranged between the lower end and the upper end of the telescopic sleeve 32, the diameter of the protruding portion is larger than the recessed portion, and the plurality of recessed portions and the plurality of protruding portions are alternately arranged and connected in sequence.
[0039] It is worth noting that the inner diameter of the concave portion is greater than or equal to the maximum outer diameter of the outer suction rod 12, and the upper end of the telescopic sheath 32 is a protrusion. On this basis, the projection of the spring suction rod 1 along the vertical direction falls within the range of the projection of the telescopic sheath 32 along the vertical direction. In addition, the areas where mutual friction occurs more frequently are also located within the coverage of the telescopic sheath 32 along the vertical direction.
[0040] The principle is that a gap is left between the inner side of the telescopic sheath 32 and the inner suction rod 11 or the outer suction rod 12. The telescopic sheath 32 can be telescoped through its several recessed parts and several protruding parts. During the operation of the dustproof suction rod, the telescopic amount of the spring suction rod 1 is not affected, and at the same time, the metal debris, dust, lubricating oil or grease falling from top to bottom can be absorbed.
[0041] The dustproof suction rod of the utility model has a spring suction rod with a buffering effect, which is not easy to damage the product when sucking the product, which is conducive to ensuring the product yield. The lower end of the spring suction rod is wrapped from bottom to top by a dust cover, and the dust cover can be deformed, which does not affect the up and down movement of the spring suction rod, and effectively solves the product pollution and equipment cleanliness problems caused by suction rod wear or lubricating oil falling.
[0042] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant is intended to cover non-exclusive inclusion, so that an article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the article or device comprising said element. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The orientation or positional relationship indicated by "above", "below", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0043] The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention pertains, without departing from the concept of the present invention, several simple deductions or substitutions can be made, and all should be regarded as belonging to the protection scope of the present invention.
Claims
1. A dust-proof suction rod, characterized in that: include: A spring suction rod (1), a suction nozzle mounting mechanism (2), a dust cover (3) and a suction nozzle (4) are arranged in sequence along a vertical direction; The spring suction rod (1) comprises: an inner suction rod (11), an outer suction rod (12) and a spring (13); the outer suction rod (12) is sleeved outside the inner suction rod (11), and the inner suction rod (11) and the outer suction rod (12) can slide relative to each other along the vertical direction; the spring (13) is sleeved outside the inner suction rod (11), and is arranged between the lower ends of the inner suction rod (11) and the outer suction rod (12) along the vertical direction, and can be compressed with the relative sliding between the inner suction rod (11) and the outer suction rod (12); the inner suction rod (11) is provided with a penetrating suction cavity (111); The suction nozzle mounting mechanism (2) is threadedly connected to the inner suction rod (11), and is provided with a suction hole (24) therein; The lower end of the dust cover (3) is detachably connected to the inner suction rod (11) and the suction nozzle mounting mechanism (2), and the dust cover (3) extends upward in the vertical direction. The dust cover (3) surrounds the outer side of the lower end of the inner suction rod (11) and at least partially covers the outer suction rod (12); the dust cover (3) can be deformed, and the maximum outer diameter of the dust cover (3) is greater than the maximum outer diameter of the outer suction rod (12); A vacuum suction hole (41) is provided through the suction nozzle (4), and the suction cavity (111), the suction hole (24) and the vacuum suction hole (41) are connected in sequence.
2. The dust-proof suction rod according to claim 1, characterized in that: The lower end of the inner suction rod (11) is provided with a first step (112), the lower end of the outer suction rod (12) is provided with a second step (121), and the two ends of the spring (13) are respectively located between the first step (112) and the second step (121).
3. The dust-proof suction rod according to claim 2, characterized in that: The suction nozzle mounting mechanism (2) comprises: a first connecting portion (21), a second locking portion (22) and a third connecting portion (23) which are connected in sequence, the first connecting portion (21) being threadedly connected to the inner suction rod (11), and the third connecting portion (23) being fixedly connected to the suction nozzle (4).
4. The dust-proof suction rod according to claim 3, characterized in that: A third step (113) is further provided below the first step (112) of the inner suction rod (11), and the lower end of the dust cover (3) is located between the step surface of the third step (113) and the upper surface of the second locking portion (22).
5. The dust-proof suction rod according to claim 3, characterized in that: The first connecting portion (21) is provided with an external thread, and the lower end of the air suction cavity (111) of the inner suction rod (11) is provided with a matching internal thread.
6. The dust-proof suction rod according to claim 3, characterized in that: The outer contour of the second locking portion (22) is square or hexagonal.
7. The dust-proof suction rod according to claim 4, characterized in that: The dust cover (3) comprises: a receiving bowl (31), the lower end of the receiving bowl (31) is located between the step surface of the third step (113) and the upper surface of the second locking portion (22), and the dust cover (3) extends upward in the vertical direction and its diameter gradually increases to form an inverted cone shape.
8. The dust-proof suction rod according to claim 4, characterized in that: The dust cover (3) comprises: a telescopic sleeve (32), the lower end of the telescopic sleeve (32) is located between the step surface of the third step (113) and the upper surface of the second locking portion (22), the dust cover (3) extends upward in the vertical direction, and a plurality of recessed portions and a plurality of protruding portions are arranged between the lower end and the upper end of the telescopic sleeve (32), the diameter of the protruding portion is larger than the recessed portion, and the plurality of recessed portions and the plurality of protruding portions are alternately arranged and connected in sequence.
9. The dust-proof suction rod according to claim 8, characterized in that: The upper end of the telescopic sheath (32) is the protruding portion.
10. The dust-proof suction rod according to claim 8, characterized in that: The inner diameter of the recessed portion is greater than or equal to the maximum outer diameter of the outer suction rod (12).