Ejector pin cap structure and ejector pin mechanism

Abstract

The invention belongs to the technical field of semiconductors, and provides a thimble cap structure and a thimble mechanism, the thimble cap structure comprises a thimble cap main body and a first expansion part, the first expansion part comprises a first expansion ring and a first locking structure, and the first expansion ring coaxially sleeves the periphery of the thimble cap main body; the first locking structure is used for connecting the first expansion ring to the ejector pin cap body so that the ejector pin cap body can support the first expansion part, the ejector pin cap can adapt to products of various specifications and sizes through cooperation of the first expansion part and the ejector pin cap body, the effect that one cap has multiple purposes is achieved, and it is avoided that ejector pin caps of various specifications are purchased to adapt to the products of different specifications and sizes; the production cost is effectively reduced, and the problem of product quality caused by misoperation due to repeated replacement of the ejector pin cap is avoided. The ejector pin mechanism comprises the ejector pin cap structure.

Description

Technical Field

[0001] The present application relates to the field of semiconductor technology, and in particular to a ejector cap structure and an ejector mechanism. Background Art

[0002] The ejector mechanism is an indispensable mechanism in the chip back-end packaging process, which is used to separate the chip on the wafer from the film. The ejector mechanism is set under the wafer, and the ejector provided in the ejector mechanism will be ejected from the hole of the ejector cap, thereby pushing up the relevant structure of the wafer and the chip in contact, and finally lifting the chip to achieve the separation of the chip from the film.

[0003] The traditional ejector mechanism needs to be equipped with ejector caps of different sizes, clamps for fixing the needle holder, and ejector cap adapters for different products, which increases the production and manufacturing costs of the enterprise. When the size of the product changes, it is necessary to replace the ejector caps of different sizes, clamps for fixing the needle holder, and ejector cap adapters. The frequent disassembly of the ejector mechanism is time-consuming and labor-intensive, which seriously restricts the improvement of production efficiency. In addition, manual disassembly operations are prone to misoperation, which increases the risk of product quality. Based on this, in order to solve the above problems, a new technical solution is urgently needed to reduce production costs and improve production efficiency. Summary of the invention

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present application is to provide a pin cap structure and a pin mechanism to solve the problems of high cost and low production efficiency of the pin mechanism in the prior art.

[0005] In order to achieve the above-mentioned and other related purposes, the present application provides a pin cap structure, including:

[0006] The ejector cap body has a receiving space for placing the ejector, and the ejector cap body is also provided with a plurality of vacuum holes spaced apart from each other, the vacuum holes being connected to the receiving space;

[0007] The first expansion part includes a first expansion ring and a first locking structure. The first expansion ring is coaxially sleeved on the outer periphery of the ejector cap body. The first locking structure is used to connect the first expansion ring to the ejector cap body so that the ejector cap body supports the first expansion part.

[0008] Optionally, at least two main body sliding grooves spaced apart from each other are provided on the side of the ejector cap main body, the main body sliding grooves extend along the axial direction of the ejector cap main body, and an extended positioning groove is provided at the bottom of the main body sliding groove;

[0009] The first extension portion includes at least two first locking structures, the positions of the first locking structures correspond to the positions of the main body sliding grooves, and the first extension portion is fixedly connected to the ejector cap main body through the extension positioning grooves.

[0010] Optionally, the first locking structure is located in the first expansion ring, including a first positioning shaft and a first control button plate, the first control button plate is located on the outer side of the first expansion ring, and the first positioning shaft extends from the first expansion ring to the side where the inner side of the first expansion ring is located.

[0011] Optionally, one end of the first positioning shaft close to the ejector cap body has a first arc-shaped front end;

[0012] When the first control button is pressed, the first arc-shaped front end moves away from the ejector cap body, so that the first extension portion moves along the body sliding groove;

[0013] When the first control button is released, the first arc-shaped front end moves toward the direction close to the ejector cap body and is clamped in the expansion positioning groove to fix the first expansion part to the ejector cap body.

[0014] Optionally, the first expansion ring is provided with a plurality of first expansion holes opening upward, and the plurality of first expansion holes are spaced apart from each other and surround the outer circumference of the ejector cap body.

[0015] Optionally, at least two first sliding grooves spaced apart from each other are provided on the outer side surface of the first expansion ring, the first sliding groove and the first locking structure are staggered and extend along the axial direction of the ejector cap body, and a first positioning groove is provided at the bottom of the first sliding groove.

[0016] Optionally, it further includes second to Nth extension parts, where N is a positive integer greater than or equal to 2;

[0017] Among them, the i-th extension part includes the i-th extension ring and the i-th locking structure, the i-th extension ring is coaxially sleeved on the outer periphery of the i-1-th extension ring, the i-th locking structure is used to connect the i-th extension part to the i-1-th extension part, and i is a positive integer greater than 1 and less than or equal to N.

[0018] Optionally, the outer side surface of the i-th expansion ring is provided with at least two i-th sliding grooves spaced apart from each other, the i-th sliding groove is staggered with the i-th locking structure and extends along the axial direction of the ejector cap body, and the groove bottom of the i-th sliding groove is provided with an i-th positioning groove;

[0019] The i-th locking structure is located in the i-th expansion ring, and includes an i-th control button plate and an i-th positioning shaft. The i-th control button plate is located on the outer surface of the i-th expansion ring, and the i-th positioning shaft extends from the i-th expansion ring to the side where the inner surface of the i-th expansion ring is located.

[0020] Optionally, the i-th expansion ring is provided with a plurality of i-th expansion holes opening upward, and the plurality of i-th expansion holes are arranged at intervals from each other around the axis of the ejector cap body.

[0021] The present application also provides an ejector mechanism, comprising a base, a needle holder, an adapting structure, and any one of the ejector cap structures in the aforementioned embodiments;

[0022] The ejector cap structure is sleeved on the adapting structure, the needle holder is placed in the accommodating space of the ejector cap structure, and both the needle holder and the adapting structure are connected to the base.

[0023] As described above, the ejector cap structure and ejector mechanism provided by the present application have at least the following beneficial effects:

[0024] The ejector cap structure of the present application can adapt to products of various sizes and specifications by providing a first extension part to cooperate with the ejector cap main body, thereby achieving the effect of one cap for multiple uses, avoiding the need to purchase ejector caps of various specifications to adapt to products of various specifications and sizes, effectively reducing the material costs of the enterprise, and avoiding the problem of product quality caused by improper operation due to repeated replacement of the ejector cap; the first locking structure includes a first positioning shaft and a first control button plate, and a main body sliding groove is provided on the side of the ejector cap main body. By pressing the first control button plate and utilizing the first positioning shaft to cooperate with the main body sliding groove, the first extension part can be quickly installed and disassembled, thereby reducing the equipment changeover time and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 Shown is a structural schematic diagram of the ejector cap structure provided in Example 1 of the present application.

[0027] Figure 2 Display as Figure 1 Schematic diagram of the exploded structure of the ejector cap structure shown.

[0028] Figure 3 Display as Figure 1The ejector cap structure shown is a schematic diagram of a top view along the axial direction of the ejector cap body.

[0029] Figure 4 Display as Figure 1 A schematic structural diagram of the first locking structure in the ejector cap structure is shown.

[0030] Figure 5 Shown is a structural schematic diagram of another ejector pin cap structure provided as an optional embodiment in the second embodiment of the present application.

[0031] Figure 6 Display as Figure 5 A schematic diagram of the top view of the ejector cap structure is shown.

[0032] Figure 7 Display as Figure 5 The schematic diagram of the structure of the first to third locking structures in the ejector cap structure is shown.

[0033] Reference numerals:

[0034] 10. ejector cap structure; 11. ejector cap body; 111. vacuum hole; 112. body sliding groove; 113. extension positioning groove; 12. first extension portion; 121. first extension ring; 1211. first sliding groove; 1212. first positioning groove; 1213. first extension hole; 122. first locking structure; 1221. first positioning shaft; 1222. first control plate; 13. second extension portion; 131. second extension ring; 1311. second Sliding groove; 1312, second positioning groove; 1313, second extension hole; 132, second locking structure; 1321, second positioning shaft; 1322, second control button; 14, third extension part; 141, third extension ring; 1411, third sliding groove; 1412, third positioning groove; 1413, third extension hole; 142, third locking structure; 1421, third positioning shaft; 1422, third control button; 20, base; 30, needle holder. DETAILED DESCRIPTION

[0035] In order to make the technical purpose, technical solution and technical effect of the present application clearer, the technical solution in the present application will be clearly and completely described in conjunction with the embodiments below. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present application is not intended to limit the scope of the present application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In the description of the present application, it should be noted that the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the implementation or example are included in at least one implementation or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same implementation or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more implementations or examples in a suitable manner.

[0038] Embodiment 1

[0039] This embodiment provides a pin cap structure 10, which is used to solve the problems in the prior art that the cost of matching the pin mechanism with products of different specifications and sizes is high, and the production efficiency is low due to frequent disassembly. Figure 1 and Figure 2 The ejector cap structure 10 of this embodiment includes an ejector cap body 11 and a first expansion portion 12 .

[0040] Reference Figures 1 to 3 The ejector cap body 11 is provided with a storage space for accommodating the ejector, and the ejector cap body 11 is also provided with a plurality of vacuum holes 111 spaced apart from each other, the vacuum holes 111 are connected with the storage space, and when in use, the vacuum holes 111 are used to achieve adsorption or enable the ejector to be ejected from the ejector cap body 11. Optionally, the ejector cap body 11 is provided with a plurality of vacuum holes 111, and the plurality of vacuum holes 111 may be distributed radially, or in an array, or may be distributed in other suitable ways.

[0041] The first expansion portion 12 includes a first expansion ring 121 and a first locking structure 122. The first expansion ring 121 is sleeved on the outer periphery of the thimble cap body 11. The first locking structure 122 is used to connect the first expansion ring 121 to the thimble cap body 11 so that the thimble cap body 11 can support the first expansion portion 12. Optionally, the first expansion ring 121 is coaxially arranged with the thimble cap body 11.

[0042] In the present embodiment, the first extension portion 12 is an extension of the thimble cap body 11. When the structural dimensions of the thimble cap body 11 are matched with the structural dimensions of the product, the thimble cap body 11 can be used to lift the product. When the structural dimensions of the product change, the first extension portion 12 is sleeved on the outer periphery of the thimble cap body 11, and the first extension portion 12 and the thimble cap body 11 are used together as the thimble cap, so that the thimble cap structure 10 can be applied to products of different specifications and sizes. There is no need to purchase thimble caps of multiple specifications to adapt to products of different specifications and sizes. At the same time, frequent disassembly and adjustment of the thimble cap to adapt to the specifications and sizes of the product is avoided, which saves the material cost of the enterprise, improves production efficiency, and avoids product quality problems caused by misoperation when frequently disassembling the thimble cap.

[0043] Reference Figure 2 and Figure 4 , at least two main body sliding grooves 112 are arranged at intervals on the side of the ejector cap main body 11, and the main body sliding groove 112 extends along the axial direction of the ejector cap main body 11. The bottom of the main body sliding groove 112 is also provided with an extended positioning groove 113. Optionally, the number of extended positioning grooves 113 in the main body sliding groove 112 can be one or more, for example, the bottom of the main body sliding groove 112 is provided with an extended positioning groove 113. The main body sliding groove 112 is used to provide a guide for the movement of the first extension part 12 along the axial direction of the ejector cap main body 11, and the main body positioning groove is used to connect the first extension part 12 to the ejector cap main body 11 to maintain the relative position between the first extension part 12 and the ejector cap main body 11 stable.

[0044] In an optional embodiment, two main body sliding grooves 112 are provided on the side of the pin cap body 11, and the two main body sliding grooves 112 are symmetrically arranged about the axis of the pin cap body 11; or three main body sliding grooves 112 may be provided on the side of the pin cap body 11, and the three main body sliding grooves 112 are evenly spaced around the axis of the pin cap body 11; or the number of the main body sliding grooves 112 can also be four or other suitable numbers, and the plurality of main body sliding grooves 112 are evenly spaced on the side of the pin cap body 11 around the axis of the pin cap body 11.

[0045] In an optional embodiment, the first extension portion 12 includes at least two first locking structures 122, the position of the first locking structure 122 corresponds to the position of the main body sliding groove 112, and the first locking structure 122 extends the positioning groove 113 to fix the first extension portion 12 to the pin cap body 11.

[0046] Furthermore, the first extension portion 12 includes two first locking structures 122, and two main body sliding grooves 112 are provided on the side of the pin cap main body 11. The first locking structure 122 is located in the first extension ring 121. The two first locking structures 122 are symmetrically arranged about the axis of the pin cap main body 11. The positions of the two main body sliding grooves 112 correspond to the positions of the two first locking structures 122 respectively. Through the two first locking structures 122, the first extension portion 12 can be fixedly connected to the pin cap main body 11, so that the pin cap main body 11 supports the first extension portion 12.

[0047] Reference Figure 4 , the first locking structure 122 is located in the first expansion ring 121, and optionally, the first locking structure 122 is fixedly connected to the first expansion ring 121. The first locking structure 122 includes a first positioning shaft 1221 and a first control plate 1222, the first control plate 1222 is located on the outer side of the first expansion ring 121, and the first positioning shaft 1221 extends from the first expansion ring 121 to the side where the inner side of the first expansion ring 121 is located. Optionally, a first locking hole is provided on the inner side of the first expansion ring 121, and the first positioning shaft 1221 is located in the first locking hole; when the first locking structure 122 is in a free state, that is, when the first control plate 1222 is not pressed, the first positioning shaft 1221 extends to the outside of the first locking hole; when the first control plate 1222 is pressed, the first positioning shaft 1221 shrinks into the first locking hole.

[0048] In an optional embodiment, the first positioning shaft 1221 has a first arc-shaped front end at one end close to the ejector cap body 11. When the first control button 1222 is pressed, the first arc-shaped front end moves in a direction away from the ejector cap body 11, so that the first arc-shaped front end is located in the main body sliding groove 112 or in the first locking hole, so that the first extension portion 12 can move along the extension direction of the main body sliding groove 112; when the first control button 1222 is released, the first arc-shaped front end moves in a direction close to the ejector cap body 11, so that the first arc-shaped front end abuts against the bottom of the main body sliding groove 112, or is clamped in the extension positioning groove 113, so that the first extension portion 12 is fixedly connected to the ejector cap body 11.

[0049] In an optional embodiment, a plurality of first expansion holes 1213 opening upward are provided on the first expansion ring 121. The plurality of first expansion holes 1213 are spaced apart from each other and surround the outer circumference of the ejector cap body 11 for collecting scattered particles and other impurities to reduce the risk of contamination to the product or machine. The number, size and arrangement of the first expansion holes 1213 can be set according to actual needs. Optionally, a plurality of first expansion holes 1213 are distributed around the circumference of the ejector cap body 11.

[0050] As described above, the ejector cap structure 10 of the present embodiment can adapt to products of various specifications and sizes by providing the first extension portion 12 to cooperate with the ejector cap body 11, thereby achieving the effect of one cap for multiple uses. There is no need to purchase ejector caps of various specifications to adapt to products of various specifications and sizes, which effectively reduces the material cost of the enterprise and avoids the problem of product quality caused by improper operation due to repeated replacement of the ejector cap; the first locking structure 122 includes a first positioning shaft 1221 and a first control button 1222, and a main body sliding groove 112 is provided on the side of the ejector cap body 11. By pressing the first control button 1222 and using the first positioning shaft 1221 to cooperate with the main body sliding groove 112, the first extension portion 12 can be quickly installed and disassembled, thereby reducing the equipment changeover time and improving production efficiency; the first expansion ring 121 is also provided with a plurality of first expansion holes 1213, which can collect scattered particles and other impurities and reduce the risk of contamination to products or machines.

[0051] Embodiment 2

[0052] This embodiment provides another ejector cap structure 10, which also includes the ejector cap body 11 and the first extension portion 12 in the first embodiment. The same points as the first embodiment are not repeated here. The difference is that, referring to Figure 5 The pin cap structure 10 of the present embodiment further includes second to N-th extension parts, wherein N is a positive integer greater than or equal to 2, that is, the pin cap structure 10 of the present embodiment includes first to N-th extension parts.

[0053] In this embodiment, refer to Figure 2 , at least two first sliding grooves 1211 are arranged on the outer side of the first expansion ring 121, the first sliding grooves 1211 extend along the axial direction of the ejector cap body 11, the first sliding grooves 1211 and the first locking structure 122 are arranged in a staggered manner, and the bottom of the first sliding groove 1211 also has a first positioning groove 1212; the number of the first sliding grooves 1211 can be two, or it can also be other suitable numbers, the bottom of the first sliding groove 1211 can be provided with one first positioning groove 1212, or multiple first positioning grooves 1212. Optionally, two first sliding grooves 1211 are arranged on the outer side of the first expansion ring 121, the two first sliding grooves 1211 are symmetrically arranged about the axis of the ejector cap body 11, the bottom of the first sliding groove 1211 is provided with a first positioning groove 1212, and the position and size of the first positioning groove 1212 can be set according to actual needs.

[0054] Reference Figure 5 and Figure 6In the second to Nth extension parts of this embodiment, the i-th extension part includes an i-th extension ring and an i-th locking structure, and the i-th extension ring is sleeved on the outer periphery of the i-1th extension ring. Optionally, the i-th extension ring is coaxially arranged with the i-1th extension ring, that is, the i-th extension ring is coaxially arranged with the ejector cap body 11. The i-th locking structure is used to connect the i-th extension part to the i-1th extension ring, wherein i is a positive integer greater than 1 and less than or equal to N. Optionally, the i-th extension part includes at least two i-th locking structures, and at least two i-th locking structures are arranged in the i-th extension ring at intervals around the axis of the ejector cap body 11; further, the i-th extension part includes two i-th locking structures, and the two i-th locking structures are symmetrically arranged about the axis of the ejector cap body 11.

[0055] In an optional embodiment, for example, N is 2, and the ejector cap structure 10 includes a first extension portion 12 and a second extension portion 13 sequentially sleeved on the outer periphery of the ejector cap body 11. For example, N is 3, and along the radial direction of the ejector cap body 11 from inside to outside, the ejector cap structure 10 includes a first extension portion 12, a second extension portion 13, and a third extension portion 14 sequentially sleeved on the outer periphery of the ejector cap body 11. Or, for example, N is 4, and along the radial direction of the ejector cap body 11 from inside to outside, the ejector cap structure 10 includes a first extension portion 12, a second extension portion 13, a third extension portion 14, and a fourth extension portion sequentially sleeved on the outer periphery of the ejector cap body 11.

[0056] Reference Figure 5 , an i-th sliding groove is provided on the outer side of the i-th expansion ring, and the i-th sliding groove extends along the axial direction of the ejector cap body 11; optionally, at least two i-th sliding grooves are provided on the outer side of the i-th expansion ring, and the at least two i-th sliding grooves are evenly spaced around the axis of the ejector cap body 11; further, for example, two i-th sliding grooves are provided on the outer side of the i-th expansion ring, and the two i-th sliding grooves are symmetrically arranged about the axis of the ejector cap body 11. The bottom of the i-th sliding groove is provided with an i-th positioning groove, and the number of the i-th positioning grooves can be one or more. The i-th expansion part can be fixedly connected to the i-1 expansion part by the i-th locking structure in combination with the i-1 positioning groove. Optionally, the bottom of the i-th sliding groove is provided with an i-th positioning groove, and the position and size of the i-th positioning groove can be set according to actual needs.

[0057] In an alternative embodiment, reference Figure 7, the i-th locking structure is located in the i-th expansion ring, and optionally, the i-th locking structure is fixedly connected to the i-th expansion ring. The i-th expansion ring includes an i-th control plate and an i-th positioning shaft, the i-th control plate is located on the outer side of the i-th expansion ring, and the i-th positioning shaft extends from the i-th expansion ring to the side where the inner side of the i-th expansion ring is located. Optionally, an i-th locking hole is provided on the inner side of the i-th expansion ring, and the i-th positioning shaft is located in the i-th locking hole; when the i-th locking structure is in a free state, that is, when the i-th control plate is not pressed, the i-th positioning shaft extends to the outside of the i-th locking hole; when the i-th control plate is pressed, the i-th positioning shaft contracts into the i-th locking hole.

[0058] Furthermore, the end of the i-th positioning shaft close to the ejector cap body 11 has an i-th arc-shaped front end. When the i-th control button is pressed, the i-th arc-shaped front end moves in a direction away from the ejector cap body 11, so that the first arc-shaped front end is located in the i-1 sliding groove or the i-th locking hole, so that the i-th extension part can move along the i-1 sliding groove; when the i-th control button is released, the i-th arc-shaped front end moves in a direction close to the ejector cap body 11, so that the i-th arc-shaped front end abuts against the bottom of the i-1 sliding groove, or is clamped in the i-1 positioning groove, so as to fix the i-th extension part to the i-1 extension part.

[0059] In an alternative embodiment, reference Figure 6 The i-th expansion ring is provided with a plurality of i-th expansion holes opening upward, and the plurality of i-th expansion holes are spaced apart from each other around the axis of the ejector cap body 11. Optionally, the i-th expansion ring is provided with a plurality of i-th expansion holes, and the plurality of i-th expansion holes are distributed circumferentially around the axis of the ejector cap body 11. By providing the i-th expansion hole, scattered impurities such as particles can be collected, reducing the risk of impurities such as particles adversely affecting the machine and the product during installation, disassembly and use.

[0060] To further illustrate the ejector cap structure 10 of this embodiment, refer to Figures 5 to 7 Taking N as 3 as an example, the ejector cap structure 10 includes an ejector cap body 11 , a first extension portion 12 , a second extension portion 13 and a third extension portion 14 .

[0061] The first extension portion 12 is sleeved on the outer circumference of the ejector cap body 11 and can move along the main body sliding groove 112. The first extension portion 12 includes a first extension ring 121 and two first locking structures 122 symmetrically arranged along the axis. The first locking structure 122 includes a first positioning shaft 1221 and a first control button 1222. The first positioning shaft 1221 is clamped in the main body positioning groove to fix the first extension portion 12 to the ejector cap body 11.

[0062] The second extension portion 13 is sleeved on the outer periphery of the first extension portion 12 and can move along the first sliding groove 1211. The second extension portion 13 includes a second extension ring 131 and two second locking structures 132 symmetrically arranged along the axis. The second locking structure 132 includes a second positioning shaft 1321 and a second control button 1322. The second positioning shaft 1321 is clamped in the first positioning groove 1212 to fix the second extension portion 13 to the first extension portion 12.

[0063] The third extension part 14 is sleeved on the outer periphery of the second extension part 13 and can move along the second sliding groove 1311. The third extension part 14 includes a third extension ring 141 and two third locking structures 142 symmetrically arranged along the axis. The third locking structure 142 includes a third positioning shaft 1421 and a third control button 1422. The third positioning shaft 1421 is clamped in the second positioning groove 1312 to fix the third extension part 14 to the second extension part 13, thereby forming the ejector cap structure 10 as a whole. Optionally, the outer side surface of the third extension ring 141 is also provided with two third sliding grooves 1411 symmetrically distributed along its axis, and the bottom of the third sliding groove 1411 is provided with a third positioning groove 1412.

[0064] The first expansion portion 12 , the second expansion portion 13 , and the third expansion portion 14 are respectively provided with a first expansion hole 1213 , a second expansion hole 1313 , and a third expansion hole 1413 , which can collect scattered impurities such as particles.

[0065] As described above, the ejector cap structure 10 of this embodiment also includes an ejector cap body 11 and a first extension portion 12, and thus also has the beneficial effects of the first embodiment. In addition, the ejector cap structure 10 of this embodiment also includes second to Nth extension portions, which can independently expand the ejector cap body 11 in sequence, so as to flexibly meet the use needs of products of various specifications and sizes in the packaging field, and is suitable for products of more specifications and sizes, further improving the applicability of the ejector cap structure 10.

[0066] Embodiment 3

[0067] This embodiment provides a pin mechanism, referring to Figure 5 , including a base 20, a needle holder 30, an adapting structure, and any one of the ejector cap structures 10 in the first or second embodiment. The ejector cap structure 10 is sleeved on the adapting structure, and a receiving space is provided in the ejector cap structure 10, and the needle holder 30 is placed in the receiving space. The needle holder 30 and the adapting structure are both connected to the base 20, and the base 20 supports the ejector cap structure 10 through the adapting structure. The ejector pin is placed in the needle holder 30, and when in use, the ejector pin can be ejected from the vacuum hole 111 of the ejector cap structure 10. Optionally, the needle holder 30 and the base 20 are fixedly connected by a clamping structure, and further, the needle holder 30 and the adapting structure can be fixedly connected to the base 20 by bolts.

[0068] The ejector mechanism of this embodiment includes the ejector cap structure 10 in the first or second embodiment. Therefore, the ejector mechanism of this embodiment also has the beneficial effects of the first and second embodiments.

[0069] The above embodiments are merely illustrative of the principles and effects of the present application and are not intended to limit the present application. Anyone familiar with the technology may modify, change or combine the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A thimble cap structure, characterized in that: include: The ejector cap body has a receiving space for placing the ejector, and the ejector cap body is also provided with a plurality of vacuum holes spaced apart from each other, the vacuum holes being connected to the receiving space; The first expansion part includes a first expansion ring and a first locking structure. The first expansion ring is coaxially sleeved on the outer periphery of the ejector cap body. The first locking structure is used to connect the first expansion ring to the ejector cap body so that the ejector cap body supports the first expansion part.

2. The ejector cap structure according to claim 1, characterized in that: The side surface of the ejector cap body is provided with at least two body sliding grooves spaced apart from each other, the body sliding grooves extend along the axial direction of the ejector cap body, and the bottom of the body sliding grooves is provided with expansion positioning grooves; The first extension portion includes at least two first locking structures, the positions of the first locking structures correspond to the positions of the main body sliding grooves, and the first extension portion is fixedly connected to the ejector cap main body through the extension positioning grooves.

3. The ejector cap structure according to claim 2, characterized in that: The first locking structure is located in the first expansion ring, and includes a first positioning shaft and a first control button. The first control button is located on the outer side of the first expansion ring, and the first positioning shaft extends from the first expansion ring to the inner side of the first expansion ring.

4. The ejector cap structure according to claim 3, characterized in that: The first positioning shaft has a first arc-shaped front end at one end close to the ejector cap body; When the first control button is pressed, the first arc-shaped front end moves away from the ejector cap body, so that the first extension portion moves along the body sliding groove; When the first control button is released, the first arc-shaped front end moves toward the direction close to the ejector cap body and is clamped in the expansion positioning groove to fix the first expansion part to the ejector cap body.

5. The ejector cap structure according to claim 1, characterized in that: The first expansion ring is provided with a plurality of first expansion holes opening upward, and the plurality of first expansion holes are spaced apart from each other and surround the outer circumference of the ejector cap body.

6. The ejector cap structure according to claim 1, characterized in that: At least two first sliding grooves spaced apart from each other are arranged on the outer side surface of the first expansion ring, the first sliding groove and the first locking structure are staggered and extend along the axial direction of the ejector cap body, and a first positioning groove is arranged at the bottom of the first sliding groove.

7. The ejector cap structure according to claim 1, characterized in that: Also includes second to Nth extension parts, N is a positive integer greater than or equal to 2; Among them, the i-th extension part includes the i-th extension ring and the i-th locking structure, the i-th extension ring is coaxially sleeved on the outer periphery of the i-1-th extension ring, the i-th locking structure is used to connect the i-th extension part to the i-1-th extension part, and i is a positive integer greater than 1 and less than or equal to N.

8. The ejector cap structure according to claim 7, characterized in that: The outer side surface of the i-th expansion ring is provided with at least two i-th sliding grooves spaced apart from each other, the i-th sliding groove is staggered with the i-th locking structure and extends along the axial direction of the ejector cap body, and the groove bottom of the i-th sliding groove is provided with an i-th positioning groove; The i-th locking structure is located in the i-th expansion ring, and includes an i-th control button plate and an i-th positioning shaft. The i-th control button plate is located on the outer surface of the i-th expansion ring, and the i-th positioning shaft extends from the i-th expansion ring to the side where the inner surface of the i-th expansion ring is located.

9. The ejector cap structure according to claim 7, characterized in that: The i-th expansion ring is provided with a plurality of i-th expansion holes opening upward, and the plurality of i-th expansion holes are arranged at intervals around the axis of the ejector cap body.

10. A ejector mechanism, characterized in that: It comprises a base, a needle holder, an adapting structure and the ejector cap structure according to any one of claims 1 to 9; The ejector cap structure is sleeved on the adapting structure, the needle holder is placed in the accommodating space of the ejector cap structure, and both the needle holder and the adapting structure are connected to the base.

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