Compact cap screwing device for cryopreservation tube

Abstract

The utility model discloses a compact type cap screwing device for a cryopreservation tube. The compact type cap screwing device for the cryopreservation tube comprises a supporting structure and a cap screwing structure, the lifting structure is used for controlling the descending and ascending of the cap screwing grabbing structure; the grabbing and cap screwing structure comprises a specially-made cap screwing shaft and a cap screwing chuck, two air inlet channels are formed in the specially-made cap screwing shaft, clamping and releasing of the cap screwing chuck can be achieved, and the cap screwing chuck is made of an open-close type elastic element and has high rebound resilience; in this way, when the lifting structure descends, the cap screwing chuck can be controlled to conduct clamping, the linear motor is matched to achieve cap clamping, the structure is high in compactness, the situation that a traditional clamping jaw type air cylinder is large in occupied space and dense in arrangement interference is avoided, the multi-station cap screwing process is optimized, and the cap screwing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the "field of biological sample preservation technology", "field of cryogenic tube equipment manufacturing" and "field of mechanical capping devices", and in particular to a compact capping device for cryogenic tubes. Background Art

[0002] In the field of biological sample preservation technology, cryotubes are a commonly used sample storage container, and the tightness of their screw caps directly affects the preservation effect of samples. Therefore, the screw capping operation of cryotubes is an important task, and the accuracy and efficiency of screw capping need to be guaranteed. In the field of cryotube equipment manufacturing, the screw capping device is an important part of the cryotube equipment, and its design and performance directly affect the convenience and efficiency of the use of cryotubes. In the field of mechanical screw capping devices, various types of screw capping devices are widely used in different industries, and their design and performance are of great significance for improving production efficiency and product quality. Existing cryotube screw capping devices usually adopt a cylinder drive mode, and the screw capping structure is driven to rise and fall by the telescopic movement of the cylinder, thereby realizing the screw capping operation. In addition, some screw capping devices are driven by motors, and the rotation of the screw capping structure is driven by the rotational movement of the motor, thereby realizing the screw capping operation. However, there are some problems with the existing cryotube screw capping devices. First, the traditional clamping claw cylinder occupies a large space, and interference is prone to occur when densely arranged, which not only affects the compactness of the screw capping device, but also may affect the accuracy and efficiency of the screw capping operation. Secondly, the existing capping device may damage the cryotube during the capping process, which not only affects the preservation effect of the sample, but also may increase the cost of using the cryotube. Finally, the existing capping device may generate vibration during the capping process, which not only affects the stability of the capping operation, but also may affect the service life of the cryotube. Utility Model Content

[0003] Based on this, the technical solution mainly solves: 1) the technical problem that traditional claw-type cylinders occupy a large space and are prone to interference when densely arranged; 2) the technical problem that the existing capping device may cause damage to the cryogenic tube during the capping process; 3) the technical problem that the existing capping device may generate vibration during the capping process, affecting the stability of the capping operation and the service life of the cryogenic tube.

[0004] In a first aspect, an embodiment of the present application provides a compact capping device for a cryogenic tube, comprising a supporting structure, a lifting structure and a grabbing and capping structure, wherein the supporting structure supports the entire capping device;

[0005] The lifting structure is installed on the supporting structure;

[0006] The grabbing and capping structure comprises a connecting piece, a grabbing part and a capping part. The grabbing part comprises a rigid capping chuck to grasp the cap, and the capping part comprises a special capping shaft to tighten the cap and control the lifting and lowering of the grabbing part.

[0007] In some embodiments, the support structure serves as a basis for fixing the entire cryotube compact capping device.

[0008] In some embodiments, the lifting structure includes a cylinder bracket and a pneumatic slide. The pneumatic slide is fixed to the upper part of the supporting structure through the cylinder bracket. The pneumatic slide can achieve the lifting and lowering of the entire grabbing and screwing capping structure by inflating and deflating air.

[0009] In some embodiments, the pneumatic slide includes a slide and a sliding body. The slide descends when inflated and ascends when deflated.

[0010] In some embodiments, the screw cap part is connected to the connecting part by bolts, the screw cap part includes a driving structure, a coupling, a screw cap gas block assembly, a buffer part, and a linear guide rail, the driving structure and the screw cap gas block assembly are connected by the coupling, and the screw cap gas block assembly also includes a bearing, a seal, a screw cap shaft and a screw cap gas block.

[0011] In some embodiments, the capping shaft includes two air inlets, two air passages and two air outlets, and the two air outlets extend to the gripping portion.

[0012] In some embodiments, the gripping portion includes a screw cap pressing sleeve, a screw cap shell assembly and a screw cap chuck, the screw cap chuck is fixed to the screw cap portion by bolts, the screw cap shell assembly includes a screw cap shell and a screw cap end ring, the screw cap shell is fixed to the screw cap pressing sleeve by bolts, and the gripping portion can slide up and down relative to the screw cap portion.

[0013] In some embodiments, the screw cap chuck is made of elastic metal material, preferably spring steel, and when the screw cap pressing sleeve is pressed down, the screw cap chuck can grasp the cap.

[0014] In some embodiments, the buffer portion includes an upper buffer rod and a lower buffer rod, the linear guide rail includes a guide rail fixed to the screw-on gas block and a slider that can slide up and down, and the buffer portion and the slider can be used to adjust the height difference of multiple screw-on portions when they descend, so that each screw-on portion is in a stressed state, thereby facilitating the completion of the screw-on action.

[0015] The second aspect of the embodiment of the present application further provides a high-speed filling machine, comprising the above-mentioned compact capping device for cryogenic tubes, wherein the compact capping device for cryogenic tubes is installed on the jig filling machine.

[0016] Compared with the existing technology, the beneficial effects of the technical solution are as follows: 1. The compact capping device for cryotubes of the present invention can effectively avoid interference even in the case of dense arrangement through special design, thereby improving the compactness of the capping device and also improving the accuracy and efficiency of the capping operation. 2. The compact capping device for cryotubes of the present invention adopts a special capping shaft and a rigid capping chuck, which can realize the stable grasping and tightening of the lid, avoiding damage to the cryotube during the capping process, thereby ensuring the preservation effect of the sample and reducing the use cost of the cryotube. 3. The compact capping device for cryotubes of the present invention can adjust the height difference of multiple capping parts when they are descended by setting a buffer part, so that each capping part is in a stressed state, which is convenient for completing the capping action, thereby improving the stability of the capping operation and extending the service life of the cryotube. In general, the compact capping device for cryotubes of the present invention has higher capping efficiency and better capping effect than the existing technology, while avoiding damage to the cryotube, improving the service life of the cryotube, and having high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 This is a front view of the compact capping device for pre-frozen storage tubes of the utility model;

[0019] Figure 2 It is a front view of the lifting structure of the compact capping device for pre-frozen storage tubes of the utility model;

[0020] Figure 3 It is a front view of the grabbing and screwing capping structure of the compact screwing capping device for pre-freezing tubes of the utility model;

[0021] Figure 4 This is a cross-sectional view of the grabbing and screwing capping structure of the compact screwing capping device for pre-frozen tubes of the utility model:

[0022] Figure 5 It is a right side view of the compact capping device for pre-frozen storage tubes of the utility model.

[0023] Figure 6 It is a cross-sectional view of the capping shaft of the compact capping device for pre-freezing tubes of the utility model;

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, the descriptions of "first", "second", etc. in the present utility model are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0028] like Figure 1-Figure 5 As shown, an embodiment of the present application provides a compact capping device for cryogenic tubes, which can be used in various types of cryogenic tube filling machines, such as single-channel filling machines, multi-channel filling machines, etc. The compact capping device for cryogenic tubes includes: a supporting structure 1, a lifting structure 2 and a grabbing and capping structure 3, wherein the supporting structure 1 supports the entire capping device; the lifting structure 2 is installed on the supporting structure 1 to control the descent and ascent of the grabbing and capping structure 3; the grabbing and capping structure 3 includes a connecting piece 31, a grabbing portion 33 and a capping portion 32, the grabbing portion 33 contains a rigid capping chuck 333, which can realize the grabbing of the cap; the capping portion 32 contains a special capping shaft 3243, which can realize the tightening of the cap and the lifting and lowering control of the grabbing portion 33.

[0029] In this embodiment, the lifting structure includes a cylinder bracket 21 and a pneumatic slide 22. The pneumatic slide can be fixed to the upper part of the support structure 1 through the cylinder bracket 21, and can also be directly fixed on the support structure 1. The pneumatic slide 22 can realize the overall rise and fall of the grabbing and screwing cover structure 3 by inflating and deflating air, thereby completing the fixing and rotation of the lid and completing the screwing cover operation.

[0030] In this embodiment, the pneumatic slide 22 includes a slide 222 and a sliding body 221. The slide 222 descends when inflated and ascends when deflated. The lifting and lowering control of the grabbing and screwing capping structure 3 is achieved by inflation and deflation.

[0031] In this embodiment, the screw cap part 32 is connected to the connecting part 31 by bolts, and the screw cap part 32 includes a driving structure 321, a coupling 322, a screw cap gas block assembly 324, a buffer part 325, and a linear guide 323. The driving structure 321 and the screw cap gas block assembly 324 are connected by the coupling 322. The screw cap gas block assembly 324 also includes a bearing 3241, a seal 3242, a screw cap shaft 3243 and a screw cap gas block 3244. The screw cap gas block assembly 324 can fix the screw cap shaft 3243 to prevent the screw cap shaft 3243 from shaking.

[0032] Furthermore, the screw cap shaft 3243 includes two air inlets 32431, two air passages 32432 and two air outlets 32433, and the two air outlets 32433 extend to the gripping portion. During operation, air is successively introduced into the air inlet 32431, and air can be supplied to the gripping portion 33 through the air passage 32432, thereby realizing the up and down movement of the gripping portion 33 and completing the clamping and releasing of the cap.

[0033] In this embodiment, the grabbing portion 33 includes a screw cap pressing sleeve 332, a screw cap shell assembly 331 and a screw cap chuck 333. The screw cap chuck 333 is fixed to the screw cap portion 32 by bolts. The screw cap shell assembly 331 includes a screw cap shell 3312 and a screw cap end ring 3311. The screw cap shell 3312 is fixed to the screw cap pressing sleeve 332 by bolts. The grabbing portion 33 can slide up and down relative to the screw cap portion 32.

[0034] Furthermore, the capping chuck 333 is made of an elastic metal material, preferably spring steel. When the capping sleeve 332 is pressed down, the capping chuck 333 can grasp the cap, and vice versa, the cap can be released.

[0035] In this embodiment, the buffer portion 325 includes an upper buffer rod 3251 and a lower buffer rod 3252, and the linear guide rail 323 includes a guide rail 3232 fixed to the screw-on gas block 3244 and a slider 3231 that can slide up and down. The buffer portion 325 and the slider 3231 can be used to adjust the height difference of multiple screw-on portions 32 when they descend, so that each screw-on portion 32 is in a stressed state, which is convenient for completing the screw-on action.

[0036] In some embodiments, the pneumatic slide 22 can also be changed to an electric slide. Only the driving method is different, and both can realize the lifting and lowering of the corresponding control structure.

[0037] In some embodiments, the number of the grabbing and screwing capping structures 3 can be increased or decreased according to the process, and the remaining structures only need to be increased or decreased accordingly.

[0038] In some embodiments, when the number of the grabbing and screwing capping structure 3 is 1, the buffer portion 325 may not be provided, and the corresponding screwing capping function may also be achieved.

[0039] The above-mentioned compact capping device for cryopreservation tubes can tighten multiple bottle caps at the same time when screwing caps, which not only meets the tightening requirements of multiple bottle caps, but also ensures the stability of the capping. At the same time, the structure is greatly simplified, and the capping efficiency is improved.

[0040] In addition, the embodiment of the utility model further provides a high-speed filling machine, which includes a high-speed filling machine and any one of the above-mentioned cryogenic tube compact capping devices for the high-speed filling machine. The above-mentioned high-speed filling machine can specifically be a cryogenic tube high-speed filling machine, or it can be other types of high-speed filling machines. In specific applications, after the bottle with a cap reaches the capping position, the cryogenic tube compact capping device grabs the bottle with a cap and randomly completes the cap tightening action, thereby realizing the simultaneous capping of multiple bottles with caps, greatly improving the capping efficiency.

[0041] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A compact capping device for cryopreservation tubes, characterized in that: include: A supporting structure, wherein the supporting structure supports the entire capping device; A lifting structure, wherein the lifting structure is installed on the supporting structure; The grabbing and screwing cap structure comprises a connecting piece, a grabbing part and a screwing cap part, and is characterized in that the grabbing part contains a rigid screwing cap chuck to realize the grabbing of the cap, and the screwing cap part contains a screwing cap shaft to realize the tightening of the cap and the lifting and lowering control of the grabbing part.

2. The compact capping device for cryotubes according to claim 1, characterized in that: The support structure serves as a basis for fixing the entire cryotube compact capping device.

3. The compact capping device for cryotubes according to claim 1, characterized in that: The lifting structure comprises a cylinder bracket and a pneumatic slide. The pneumatic slide is fixed to the upper part of the supporting structure through the cylinder bracket. The pneumatic slide can realize the lifting and lowering of the whole grabbing and screwing capping structure by inflating and deflating air.

4. The compact capping device for cryotubes according to claim 3, characterized in that: The pneumatic slide comprises a slide and a slide body. The slide descends when inflated and ascends when deflated.

5. The compact capping device for cryotubes according to claim 1, characterized in that: The screw cap part is connected to the connecting part by bolts, and the screw cap part includes a driving structure, a coupling, a screw cap gas block assembly, a buffer part, and a linear guide rail. The driving structure and the screw cap gas block assembly are connected by the coupling, and the screw cap gas block assembly also includes a bearing, a seal, a screw cap shaft, and a screw cap gas block.

6. The compact capping device for cryotubes according to claim 5, characterized in that: The capping shaft comprises two air inlets, two air passages and two air outlets, and the two air outlets extend to the gripping portion.

7. The compact capping device for cryotubes according to claim 1, characterized in that: The gripping part comprises a screw cap pressing sleeve, a screw cap shell assembly and a screw cap chuck, the screw cap chuck is fixed to the screw cap part by bolts, the screw cap shell assembly comprises a screw cap shell and a screw cap end ring, the screw cap shell is fixed to the screw cap pressing sleeve by bolts, and the gripping part can slide up and down relative to the screw cap part.

8. The compact capping device for cryotubes according to claim 7, characterized in that: The capping chuck is made of elastic metal material, preferably spring steel. When the capping sleeve is pressed down, the capping chuck can grasp the cap.

9. The compact capping device for cryotubes according to claim 5, characterized in that: The buffer part includes an upper buffer rod and a lower buffer rod, and the linear guide rail includes a guide rail fixed to the screw-on gas block and a slider that can slide up and down. The buffer part and the slider can be used to adjust the height difference of multiple screw-on parts when they descend, so that each screw-on part is in a stressed state, which is convenient for completing the screw-on action of multiple stations.

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