Automatic cover opening and closing module for centrifugal tube

Abstract

The utility model discloses an automatic cap opening and closing module for a centrifugal tube, which comprises a rack, a vertical rodless cylinder, a mounting plate, a plurality of vertical rodless cylinders, a bottle cap rotating module and a bottle body fixing module, the vertical rodless cylinder drives the mounting plate to lift, and the plurality of vertical rodless cylinders are arranged on the mounting plate; the vertical rodless air cylinder comprises a cylinder barrel, a sliding table, an upper end cover and a lower end cover, the periphery of the cylinder barrel is sleeved with a pre-pressing spring, the pre-pressing spring is located between the sliding table and the upper end cover, and the bottle cap rotating module is fixed to the surface of the sliding table; the bottle cap rotating module comprises rotating clamping jaws, a plurality of clamping blocks and a driving assembly, the clamping blocks are fixedly arranged at the bottom ends of jaws of the rotating clamping jaws, the clamping blocks are in a multi-step shape, and the surfaces of the inner side walls of the clamping blocks are arc-shaped surfaces. The bottle cap clamping device has the advantages that the clamping blocks located at the bottom end of the jaw of the rotary clamping jaw are arranged to be in the shape of a plurality of steps, the surfaces of the inner side walls of the clamping blocks are arranged to be the arc-shaped surfaces, and therefore the clamping blocks have better adaptability when clamping bottle caps with different calibers.

Description

TECHNICAL FIELD

[0001] The utility model relates to centrifugal tube using equipment technical field especially relates to a centrifugal tube automatic cover opening and closing module. BACKGROUND

[0002] Centrifugal tube is tubular reagent container, can take sealed cover or gland;Centrifugal tube is the most commonly used container in modern molecular biology experiment, and before the opening and closing of centrifugal tube cover adopts manual operation. The large number of cover buckling and opening made in the experiment is a kind of simple and boring repetitive operation. And some test solvents are toxic and harmful substances, or volatile substances, improper manual operation is easy to spill or volatilize when opening and closing, or cause harm to the body of experimental personnel. In addition, in order to prevent pollution, the operation of centrifugal tube must be carried out in a high-cleanliness working environment, and manual operation can not avoid causing the pollution of centrifugal tube opening, thus the existing centrifugal tube opening and closing module appears.

[0003] The existing centrifugal tube cover opening and closing device includes a support assembly, a tube body rotating assembly, a compression fixing assembly and a cap fixing assembly. When opening and closing the cover, the bottle body of the centrifugal tube is fixed by the compression fixing assembly, the bottle cap of the centrifugal tube is fixed by the cap fixing assembly, the bottle body of the centrifugal tube is rotated by the tube body rotating assembly, and the bottle body and the bottle cap of the centrifugal tube are separated or connected. The cap fixing assembly in the existing centrifugal tube cover opening and closing device has poor fixing adaptability to different caliber bottle caps, and needs to be improved. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a centrifugal tube automatic cover opening and closing module with better adaptability to the fixing of different caliber bottle caps.

[0005] The utility model provides a centrifugal tube automatic cover opening and closing module, including frame, vertical rodless cylinder, mounting panel, a plurality of vertical rodless cylinders, bottle cap rotating module and bottle body fixed module, the vertical rodless cylinder is fixedly arranged on the frame, and drives the mounting panel to lift, a plurality of vertical rodless cylinders are vertically fixedly arranged on the mounting panel, and drive bottle cap rotating module to lift, the vertical rodless cylinder includes cylinder barrel, sliding table, upper end cover and lower end cover, the periphery of cylinder barrel is equipped with precompression spring, the precompression spring is located between sliding table and upper end cover, the surface of bottle cap rotating module is fixed with sliding table, the bottle cap rotating module includes rotating clamp jaw, a plurality of clamping blocks and the drive assembly of the rotation of rotating clamp jaw, a plurality of clamping blocks are fixedly arranged at the bottom of the jaw of each rotating clamp jaw, the clamping block is a plurality of levels ladder, the inner wall surface of clamping block is formed a plurality of layers of arc surfaces, the diameter size of the arc surface of the inner wall of clamping block gradually decreases to the direction of rotating clamp jaw, the bottle body fixed module is located below a plurality of clamping blocks.

[0006] Preferably, the clamp block comprises a first clamping part, a second clamping part and a fixing part, the first clamping part is located at the upper end of the second clamping part, and the diameter size of the arc surface of the inner side wall of the first clamping part is smaller than that of the second clamping part.

[0007] Preferably, the fixing part is located outside the first clamping part, a transition block is arranged between each clamp block and the jaw of the rotary clamp jaw, and the two ends of the transition block are fixedly connected with the fixing part and the jaw of the rotary clamp jaw respectively.

[0008] Preferably, the clamp block is made of A6061 aluminum alloy material.

[0009] Preferably, a buffer spring is sleeved on the periphery of the cylinder, and the buffer spring is located between the sliding table and the lower end cover.

[0010] Preferably, the bottle body fixing module comprises a bottle body placing table and a bottle body clamping air cylinder, and the bottle body clamping air cylinder is located above the bottle body placing table.

[0011] Preferably, the bottle cap rotating module further comprises a fixing frame fixedly connected with the sliding table and the rotary clamp jaw, a sliding seat is arranged on the fixing frame, a sliding guide rail is vertically arranged on the mounting plate, and the sliding seat is clamped on the sliding guide rail.

[0012] Preferably, the driving assembly comprises a driving motor, a driving wheel, a driven wheel, a synchronous belt and a fixing plate, the fixing plate is horizontally fixedly arranged on the rotary clamp jaw, the driving motor is vertically fixedly arranged on the fixing plate, the driving wheel is fixedly arranged on the rotating shaft of the driving motor, the driven wheel is fixedly arranged on the rotating shaft of the rotary clamp jaw, and the synchronous belt is wound around the periphery of the driving wheel and the driven wheel.

[0013] Preferably, a dust cover is sleeved on the periphery of the driving wheel, the driven wheel and the synchronous belt, and the dust cover is fixedly connected with the fixing plate by bolts.

[0014] From the above description of the utility model, the utility model has the following beneficial effects:

[0015] 1. The clamp block located at the bottom end of the jaw of the rotary clamp is arranged in a plurality of stepped shapes, so that the clamp block can be divided into a first clamping part and a second clamping part, and the inner side wall surface of the clamp block is arranged as an arc surface; when clamping the bottle cap, the corresponding position of the clamp block clamps the bottle cap according to the caliber of the bottle cap, so that each clamp block has better adaptability when clamping bottle caps of different calibers.

[0016] 2. A pre-compression spring is sleeved on the periphery of the cylinder, and the pre-compression spring is arranged between the sliding table and the upper end cover, and the pre-compression spring provides flexible jumping between the bottle cap rotating module and the bottle cap of the centrifugal tube.

[0017] 3. The buffer spring is arranged on the periphery of the cylinder, and the buffer spring is arranged between the sliding table and the lower end cover, the buffer spring is arranged to buffer the bottle cap rotating module, so as to avoid the excessive pressure on the surface of the bottle cap when the bottle cap rotating module is lowered. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a whole structure schematic diagram of an embodiment of a centrifugal tube automatic cover opening and closing module;

[0019] Figure 2 is a structure schematic diagram of an embodiment of a mounting plate and a bottle cap rotating module;

[0020] Figure 3 is a structure schematic diagram of an embodiment of a vertical rodless cylinder, a sliding guide rail and a sliding seat;

[0021] Figure 4 is a structure schematic diagram of an embodiment of a pre-pressing spring and a buffer spring;

[0022] Figure 5 is a structure schematic diagram of an embodiment of a clamping block;

[0023] Figure 6 is a structure schematic diagram of an embodiment of a driving assembly.

[0024] The specific embodiments of the present application will be further described below in conjunction with the accompanying drawings. 1. frame; 2. vertical rodless cylinder; 3. mounting plate; 31. sliding guide rail; 4. vertical rodless cylinder; 41. cylinder; 42. sliding table; 43. upper end cover; 44. lower end cover; 45. pre-pressing spring; 46. buffer spring; 5. bottle cap rotating module; 51. rotating clamping jaw; 52. clamping block; 521. first clamping part; 522. second clamping part; 523. fixed part; 524. arc surface; 53. driving assembly; 531. driving motor; 532. driving wheel; 533. driven wheel; 534. synchronous belt; 535. fixed plate; 536. dust cover; 54. transition block; 55. fixed frame; 56. sliding seat; 6. bottle body fixing module; 61. bottle body placing table; 62. bottle body clamping cylinder. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects of the present application more clear, the following will be further described in conjunction with the accompanying drawings of the embodiments of the present application. Figures 1-6 The specific embodiments described herein are intended to be illustrative only and are not intended to limit the scope of the present application.

[0026] Reference Figures 1-4The application discloses a centrifugal tube automatic cover opening and closing module which comprises a rack 1, a vertical rodless cylinder 2, a mounting plate 3, a pair of vertical rodless cylinders 4, a pair of bottle cap rotating modules 5 and a pair of bottle body fixing modules 6. The vertical rodless cylinder 2 is vertically fixed on the rack 1, the mounting plate 3 is fixed with the vertical rodless cylinder 2, and the mounting plate 3 is driven to ascend and descend by the vertical rodless cylinder 2. The two vertical rodless cylinders 4 are vertically fixed on the mounting plate 3 and are kept parallel to each other, and the vertical rodless cylinder 4 comprises a cylinder barrel 41, a sliding table 42, an upper end cover 43 and a lower end cover 44. The upper end cover 43 and the lower end cover 44 are respectively located at two ends of the cylinder barrel 41, and the sliding table 42 can slide on the cylinder barrel 41.

[0027] The bottle cap rotating module 5 comprises rotating clamping jaws 51, a plurality of clamping blocks 52, a driving assembly 53 and a fixing frame 55. The fixing frame 55 is fixed with the surface of the sliding table 42, a sliding seat 56 is fixed on the surface of the fixing frame 55, a sliding guide rail 31 is vertically fixed on the surface of the mounting plate 3 in correspondence with the sliding seat 56, and the sliding seat 56 is clamped on the sliding guide rail 31. The rotating clamping jaws 51 are fixed with the fixing frame 55, transition blocks 54 are fixed on the bottom ends of the jaws of the rotating clamping jaws by means of bolt locking, and the plurality of clamping blocks 52 are fixed on the bottom ends of the transition blocks 54.

[0028] With reference to Figure 5 The clamping block 52 comprises a first clamping part 521, a second clamping part 522 and a fixing part 523. The first clamping part 521 is located at the top end of the second clamping part 522, so that the clamping block 52 is in a two-layer stepped shape. The fixing part 523 is located at one side of the first clamping part 521, and the fixing part 523 and the transition block 54 are fixed by means of bolt locking, so that the clamping block 52 is stably installed. The inner side surface of the first clamping part 521 and the inner side surface of the second clamping part 522 are both arc surfaces 524, and the diameter size of the arc surface 524 of the inner side wall of the first clamping part 521 is smaller than that of the arc surface 524 of the inner side wall of the second clamping part 522. Therefore, the first clamping parts 521 of the clamping blocks 52 can be mutually closed to clamp small-diameter bottle caps, and the second clamping parts 522 of the clamping blocks 52 can be mutually closed to clamp large-diameter bottle caps. The transition block 54 plays a transition role between the clamping blocks 52 and the jaws of the rotating clamping jaws 51, so as to avoid the interference phenomenon between the clamping blocks 52. The clamping block 52 is provided in a multi-layer stepped shape, so that the automatic cover opening and closing module has better adaptability to the opening of bottle caps with different diameters. The clamping block 52 is made of A6061 aluminum alloy material. Since the A6061 aluminum alloy has good machining performance, the clamping block 52 is convenient to process and form, and has the advantage of not being easy to deform after processing.

[0029] With reference to Figure 1 And Figure 2The bottle body fixing module 6 is arranged at the bottom end of the bottle cap rotating module 5, and the bottle body is fixed by the bottle body fixing module 6. The bottle body fixing module 6 comprises a bottle body placing platform 61 and a pair of bottle body clamping cylinders 62, and the two bottle body clamping cylinders 62 are arranged on the bottle body placing platform 61 and located at the bottom end of the two bottle cap rotating modules 5 respectively. The centrifuge tube to be opened is placed on the bottle body placing platform, and the centrifuge tube is clamped and fixed by the bottle body clamping cylinder 62. When the small-diameter bottle cap needs to be opened, the vertical rodless cylinder 2 drives the mounting plate 3, the vertical rodless cylinder 4 and the bottle cap rotating module 5 to descend, so that the bottle cap rotating module 5 approaches the bottle cap. When the top surface of the small-diameter bottle cap abuts against the bottom end of each transition block 54, the rotary jaw 51 drives each clamping block 52 to approach each other to clamp the small-diameter bottle cap by the first clamping part 521 of each clamping block 52. When the large-diameter bottle cap needs to be opened, the top surface of the large-diameter bottle cap abuts against the bottom end of each first clamping part 521, the rotary jaw 51 drives each clamping block 52 to approach each other to clamp the large-diameter bottle cap by the second clamping part 522 of each clamping block 52.

[0030] With reference to Figure 4 In order to make the position height of the bottle cap rotating module 5 driven by the vertical rodless cylinder 2 after lifting adaptable to the centrifuge tube with different caliber bottle caps. The pre-press spring 45 and the buffer spring 46 are arranged outside the cylinder barrel 41, wherein the pre-press spring 45 is located between the sliding table 42 and the upper end cover 43, and the two ends of the pre-press spring 45 abut against the sliding table 42 and the upper end cover 43 respectively. The buffer spring 46 is arranged between the sliding table 42 and the lower end cover 44, and the two ends of the buffer spring 46 abut against the sliding table 42 and the lower end cover 44 respectively. The pre-press spring 45 is arranged to pre-press the bottle cap of the centrifuge tube, and the degree of extrusion of the pre-press spring 45 by the sliding table 42 enables each clamping block 52 to adapt to the clamping of the centrifuge tube with different lengths and provides flexible bounce between the bottle cap rotating module 5 and the centrifuge tube. The buffer spring 46 is arranged to buffer the descent of the bottle cap rotating module 5, so as to avoid excessive pressure on the surface of the bottle cap when the bottle cap rotating module 5 descends.

[0031] With reference to Figure 6The rotating jaw 51 drives each clamping block 52 to firmly clamp the bottle cap, and then the rotating jaw 51 and the bottle cap are driven by the driving assembly 53 to rotate, so as to open the bottle cap on the centrifugal tube. The driving assembly 53 comprises a driving motor 531, a driving wheel 532, a driven wheel 533, a synchronous belt 534 and a fixed plate 535. The fixed plate 535 is horizontally fixed at the top end of the rotating jaw 51, and the rotating shaft of the rotating jaw 51 is arranged to pass through the surface of the fixed plate 535. The driving motor 531 is fixed at the bottom end of the fixed plate 535, and the rotating shaft of the driving motor 531 also passes through the surface of the fixed plate 535. The driving wheel 532 is fixed on the rotating shaft of the driving motor 531, and the driven wheel 533 is fixed on the rotating shaft of the rotating jaw 51. The synchronous belt 534 is arranged around the driving wheel 532 and the driven wheel 533, so that the driving wheel 532 and the driven wheel 533 are in transmission connection. The rotating shaft of the driving motor 531 rotates to drive the rotating jaw 51 to rotate through the synchronous belt 534, so as to open the bottle cap on the centrifugal tube. In order to prevent dust from accumulating and affecting the transmission effect between the driving motor 531 and the rotating jaw 51, a dust cover 536 is arranged around the driving wheel 532, the driven wheel 533 and the synchronous belt 534, and the dust cover 536 is fixed between the fixed plate 535 by bolts.

[0032] The specific implementation principle of the embodiment of the present application is as follows: when it is needed to open the bottle cap on the centrifugal tube by the automatic cap opening and closing module, the centrifugal tube is placed on the bottle body placing table 61, and the bottle body of the centrifugal tube is clamped stably by the bottle body clamping cylinder 62, so that the centrifugal tube is located directly below the rotating jaw 51. The vertical rodless cylinder 2 drives the bottle cap rotating module 5 and each clamping block 52 to descend. When the bottle cap to be opened is a small-diameter bottle cap, the bottle cap rotating module 5 descends to make the top end of the small-diameter bottle cap abut against the bottom end surface of the transition block 54, and the rotating jaw 51 drives each clamping block 52 to clamp the small-diameter bottle cap stably. When the bottle cap to be opened is a large-diameter bottle cap, the bottle cap rotating module 5 descends to make the top end of the large-diameter bottle cap abut against the bottom end surface of the first clamping portion 521, and the large-diameter bottle cap is clamped against the inner side arc surface of the second clamping portion 522. Then the rotating shaft of the driving motor 531 rotates to drive the rotating jaw to rotate through the synchronous belt 534, so as to open the bottle cap on the centrifugal tube.

[0033] When the vertical rodless cylinder 2 drives the bottle cap rotating module 5 to descend, the pre-press spring 45 is arranged to make the transition block 54 or the first clamping part 521 to have a pre-press effect on the bottle cap, and to provide flexible bounce between the bottle cap rotating module 5 and the centrifugal tube. The arrangement of the buffer spring 46 has a buffering effect on the descent of the bottle cap rotating module 5, so as to avoid the bottle cap rotating module 5 from descending too much and causing excessive pressure on the surface of the bottle cap. The clamping block 52 is arranged in a multi-layer stepped shape, so that the automatic opening and closing module has better adaptability to the opening of bottle caps of different diameters.

[0034] The utility model has been described above in conjunction with the drawings, and obviously, the specific implementation of the utility model is not limited by the above-mentioned mode, as long as various non-essential improvements are made by adopting the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model is directly applied to other occasions without improvement, and all falls within the protection scope of the utility model.

Claims

1. A centrifuge tube automatic cap opening and closing module, characterized in that: The vertical rodless cylinder is fixedly arranged on the rack and drives the mounting plate to ascend and descend, and the vertical rodless cylinders are vertically fixedly arranged on the mounting plate and drive the bottle cap rotating module to ascend and descend. The vertical rodless cylinder comprises a cylinder, a sliding table, an upper end cover and a lower end cover, a pre-press spring is arranged on the periphery of the cylinder, the pre-press spring is located between the sliding table and the upper end cover, and the bottle cap rotating module is fixed to the surface of the sliding table. The bottle cap rotating module comprises rotating clamps, a plurality of clamping blocks and a driving assembly for driving the rotating clamps to rotate, the clamping blocks are fixedly arranged at the bottom end of the jaws of the rotating clamps, the clamping blocks are in a plurality of stepped forms, the inner side wall surface of the clamping blocks is formed into a plurality of arc surfaces, the diameters of the arc surfaces of the inner side walls of the clamping blocks gradually decrease in the direction of the rotating clamps, and the bottle body fixing module is located below the clamping blocks.

2. The automatic cap opening and closing module for centrifuge tubes according to claim 1, characterized in that: The clamping block comprises a first clamping part, a second clamping part and a fixing part, the first clamping part is located at the upper end of the second clamping part, and the diameter of the arc surface of the inner side wall of the first clamping part is smaller than that of the second clamping part.

3. The automatic cap opening and closing module for centrifuge tubes according to claim 2, characterized in that: The fixing part is located outside the first clamping part, a transition block is arranged between each clamping block and the jaw of the rotating clamp, and the two ends of the transition block are fixedly connected with the fixing part and the jaw of the rotating clamp respectively.

4. The automatic cap opening and closing module for centrifuge tubes according to claim 1, characterized in that: The clamping block is made of A6061 aluminum alloy material.

5. The automatic cap opening and closing module for centrifuge tubes according to claim 1, characterized in that: The periphery of the cylinder is sleeved with a buffer spring, and the buffer spring is located between the sliding table and the lower end cover.

6. The automatic cap opening and closing module for centrifuge tubes according to claim 1, characterized in that: The bottle body fixing module comprises a bottle body placing table and a bottle body clamping cylinder, and the bottle body clamping cylinder is located above the bottle body placing table.

7. The automatic cap opening and closing module for centrifuge tubes according to claim 1, characterized in that: The bottle cap rotating module further comprises a fixing frame, the fixing frame is fixed with the sliding table and the rotating clamp respectively, a sliding seat is arranged on the fixing frame, a sliding guide rail is vertically arranged on the mounting plate, and the sliding seat is clamped on the sliding guide rail.

8. The automatic cap opening and closing module for centrifuge tubes according to claim 1, characterized in that: The driving assembly comprises a driving motor, a driving wheel, a driven wheel, a synchronous belt and a fixing plate, the fixing plate is horizontally fixed on the rotating clamp, the driving motor is vertically fixed on the fixing plate, the driving wheel is fixed on the rotating shaft of the driving motor, the driven wheel is fixed on the rotating shaft of the rotating clamp, and the synchronous belt is arranged on the periphery of the driving wheel and the driven wheel.

9. The automatic cap opening and closing module for centrifuge tubes according to claim 8, characterized in that: The periphery of the driving wheel, the driven wheel and the synchronous belt is sleeved with a dust cover, and the dust cover is fixed with the fixing plate by bolts.

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