Plant stem segment cutting scissors for tissue culture

Abstract

The utility model discloses a plant stem cutting shear for tissue culture, which belongs to the technical field of stem cutting equipment and comprises a guide rod support, a plurality of slide rail-guide groove cutting shears, a shear distance adjusting component, a cutting driving component and a limiting component. The guide rod support is provided with a guide rod, the slide rail-guide groove cutting shears are connected with the guide rod in a sliding manner, and the shear distance adjusting component is arranged between the slide rail-guide groove cutting shears. The sliding between the two is damping sliding; the position of the sliding rail-guide groove cutting shear can be manually adjusted according to scales of a graduated scale strip-shaped frame in the shear distance adjusting assembly; the cutting driving assembly comprises a linear actuator, the linear actuator can be a hydraulic cylinder or an air cylinder, and the linear actuator can drive the multiple sliding rail-guide groove cutting shears to conduct opening and closing cutting work at the same time through a nested vertical bidirectional sliding rail-sliding block structure. In conclusion, the tissue culture plant stem section shearing device can accurately and rapidly shear the tissue culture plant stem section with the required length requirement, plant stem sections with the same length or different lengths can be cut at the same time, and the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of stem segment cutting equipment for tissue culture, specifically to a plant stem segment cutting shear for tissue culture. Background Technology

[0002] Currently, in the process of plant tissue culture, it is necessary to separate and cut the stem segments of the tissue cultured plants, and other parts also need to be cut and removed. These operations are all essential in the process of plant tissue culture.

[0003] The traditional method for cutting stem segments of tissue culture plants is manual cutting. However, using purely manual stem pruning and cutting may cause irreversible contamination to tissue culture plants. In addition, manual cutting of one segment at a time is labor-intensive, inefficient, and cannot accurately cut the stem segments of tissue culture plants in terms of scale.

[0004] In summary, there is an urgent need to design a plant stem segment cutting device for tissue culture that can accurately and quickly cut tissue culture plant stem segments according to cutting requirements; thereby saving manpower and financial resources and achieving better social value and economic benefits, so as to meet the needs of technicians in the field of stem segment cutting equipment. Utility Model Content

[0005] The purpose of this invention is to solve the above-mentioned technical problems by providing a plant stem cutting shear for tissue culture.

[0006] A plant stem cutting shear for tissue culture includes: a guide rod support 1, n slide rail-guide groove cutting shears 2, a cutting spacing adjustment assembly 3, a cutting drive assembly 4, and a limiting assembly 5;

[0007] The guide rod bracket 1 includes a U-shaped bracket 10, a guide rod 11, and a side handle 12. The guide rod 11 is vertically disposed between the two side wall plates of the U-shaped bracket 10.

[0008] The n slide rail-guide groove cutting shears 2 have the same structure and are slidably connected to the guide rod 11, where n≥3;

[0009] The slide rail-guide groove cutting shear 2 includes a slide rail mounting plate 20, a slider 21, a fixing block 22, a cutting shear body A 23, a cutting shear body B 24, a guide groove pin 25, a connecting column 26, and a guide plate 27;

[0010] The slide rail mounting plate 20 is slidably connected to the guide rod 11, and the upper end of the slide rail mounting plate 20 is provided with a pointed adjustment platform 20b;

[0011] The slide rail mounting plate 20 is provided with a slide rail 20a in the middle, and the slider 21 is disposed inside it and can slide along it in front and back;

[0012] The cutting shears A23 and B24 have their blades arranged opposite each other and are axially connected to the slider 21.

[0013] The fixing block 22 is fixedly connected to the slider 21, and the rear side of the fixing block 22 is fixedly connected to the drive connecting rod 43 of the cutting drive assembly 4;

[0014] The guide plate 27 is connected to the slide rail mounting plate 20 via the connecting column 26. The guide plate 27 is provided with an upper guide groove 27a and a lower guide groove 27b. Both guide grooves are straight grooves and are symmetrically shaped like the number "eight".

[0015] The cutting shear blades A23 and B24 are provided with guide groove pins 25 on the same side of the handle; the guide groove pins 25 are located in the upper guide groove 27a and the lower guide groove 27b respectively, and can slide along them;

[0016] The linear actuator of the cutting drive assembly 4 can push and pull the slider 21 back and forth via the connecting rod 43 to realize the opening and closing motion of the slide rail-guide groove cutting shear 2.

[0017] The length of the guide pin 25 at the rear handle of the cutting shear body A23 and the cutting shear body B24 differs by the thickness of one blade.

[0018] The shear spacing adjustment component 3 includes a scale bar frame 30 and a damping ring 31;

[0019] The two ends of the scale bar frame 30 are symmetrically fixed to the side wall of the U-shaped bracket 10; the pointed end of the pointed adjustment platform 20b at the upper end of the rail mounting plate 30 is opposite to the scale side of the scale bar frame 30.

[0020] The damping ring 31 is disposed on the outer edge of the sliding engagement guide hole between the slide rail mounting plate 20 and the guide rod 11, so that the sliding between the slide rail mounting plate 20 and the guide rod 11 is damped sliding.

[0021] The cutting drive assembly 4 includes a cutting linear actuator 40, a drive slide plate 41, a drive slider 42, and a drive connecting rod 43.

[0022] The cutting linear actuator 40 includes an actuator cylinder 40a and an actuator telescopic rod 40b;

[0023] The actuator cylinder 40a is fixed to the rear end of the U-shaped bracket 10, and the front end of the actuator telescopic rod 40b is fixedly connected to the rear end of the drive slide plate 41.

[0024] The drive slide plate 41 is slidably connected to the slide plate guide rails 10a on both sides of the U-shaped bracket 10.

[0025] The drive slide plate 41 is provided with a slide rail parallel to the guide rod 11. The rear side of the drive connecting rod 43 is fixedly connected to the drive slider 42. The drive slider 42 slides left and right within the slide rail of the drive slide plate 41.

[0026] The limiting component 5 includes a tissue culture stem cutting limiting ring 50 and a tissue culture stem limiting baffle 51, the tissue culture stem limiting baffle 51 being fixedly connected to one side wall of the U-shaped bracket 10.

[0027] This invention provides a stem cutting shear for tissue culture plants, belonging to the technical field of stem cutting equipment. It includes: a guide rod support, multiple slide rail-guide groove cutting shears, a cutting spacing adjustment component, a cutting drive component, and a limiting component. The guide rod support is equipped with a guide rod, and the slide rail-guide groove cutting shears are slidably connected to it, with damped sliding between them. The position of the slide rail-guide groove cutting shears can be manually adjusted according to the scale of the scale bar frame in the cutting spacing adjustment component. The cutting drive component includes a linear actuator, which can be a hydraulic cylinder or a pneumatic cylinder. It can simultaneously drive multiple slide rail-guide groove cutting shears to open and close for cutting operations through a nested vertical bidirectional slide rail-slider structure. In summary, this invention enables precise and rapid cutting of tissue culture plant stem segments of the required length, and can simultaneously cut plant stem segments of the same or different lengths, improving work efficiency.

[0028] The cutting device is equipped with multiple slide rail-guide groove cutting shears, whose positions and spacing can be precisely adjusted according to a scale. The multiple slide rail-guide groove cutting shears are driven by the same cutting drive component, which converts the linear drive into the opening and closing motion of the slide rail-guide groove cutting shears, thereby enabling precise and rapid cutting of tissue culture plant stem segments of the required length.

[0029] The present invention provides a plant stem segment cutting shear for tissue culture, which has the following beneficial effects and advantages:

[0030] 1. The guide rod support 1 includes multiple guide rods 11, and the multiple slide rail-guide groove cutting shears 2 can slide along the guide rods 11; and according to the scale on the scale bar frame 30, the position and spacing of the multiple slide rail-guide groove cutting shears 2 can be manually and quickly adjusted according to the required cutting length, so that the tissue culture stems can be cut in large batches according to the required cutting length.

[0031] 2. The multiple slide rail-guide groove cutting shears 2 are linearly driven to open and close, and the multiple slide rail-guide groove cutting shears 2 are driven by the same cutting linear actuator 40; the linear actuator 40 can be a hydraulic cylinder or a pneumatic cylinder, which simultaneously drives the multiple slide rail-guide groove cutting shears 2 to perform opening and closing cutting work through a nested vertical bidirectional slide rail-slider structure;

[0032] 3. The limiting component 5 includes a tissue culture stem cutting limiting ring 50. The limiting ring is used to limit the plant stem segment and can prevent the cutting accuracy of the plant stem segment from being affected by the shearing force. The inner diameter of the limiting ring can be reasonably selected according to the actual plant stem segment being cut.

[0033] In summary, this utility model of a plant stem cutting shear for tissue culture can accurately and quickly cut plant stem segments of the required length, and can cut plant stem segments of the same or different lengths at the same time, which greatly improves work efficiency and accuracy compared with manual cutting. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of a plant stem segment cutting shear for tissue culture according to this utility model;

[0035] Figure 2 This is a schematic diagram of the specific structure of the guide rod support for a plant stem segment cutting shear for tissue culture according to this utility model;

[0036] Figure 3 This is a schematic diagram of the specific structure of the slide rail-guide groove cutting shear for cutting plant stem segments for tissue culture according to this utility model;

[0037] Figure 4 This is an exploded view of the slide rail-guide groove cutting shear for cutting plant stem segments for tissue culture according to this utility model;

[0038] Figure 5 This is a schematic diagram of the specific structure of the cutting drive component and the shearing spacing adjustment component of the plant stem segment cutting shears for tissue culture according to this utility model;

[0039] Figure 6 This is a schematic diagram of the closed state of the cutting drive assembly controlling the slide rail-guide groove of the cutting shear for tissue culture plant stem segment cutting according to this utility model;

[0040] Figure 7 This is a schematic diagram of the control slide rail-guide groove cutting shear in the open state of the cutting drive assembly of a plant stem segment cutting shear for tissue culture according to this utility model;

[0041] Figure 8 This is a schematic diagram of the structural state of a device for cutting plant stem segments for tissue culture when all the multiple slide rails and guide grooves of the cutting shears are located on one side.

[0042] Figure 9 This is a side view of a plant stem cutting shear for tissue culture according to this utility model.

[0043] in:

[0044] 1. Guide rod bracket; 10. U-shaped bracket; 10a. Slide rail; 10b. Mounting hole; 11. Guide rod; 12. Side handle;

[0045] 2. Slide rail-guide groove cutting shear; 20. Slide rail mounting plate; 20a. Slide rail; 20b. Pointed head adjusting table; 21. Sliding block; 22. Fixing block; 23. Cutting shear body A; 24. Cutting shear body B; 25. Guide groove pin; 26. Connecting column; 27. Guide plate; 27a. Upper guide groove; 27b. Lower guide groove;

[0046] 3. Shear gap adjustment assembly; 30. Scale bar frame; 31. Damping ring;

[0047] 4. Cutting drive assembly; 40. Cutting linear actuator; 40a. Actuator cylinder; 40b. Actuator telescopic rod; 41. Drive slide plate; 42. Drive slider; 43. Drive connecting rod;

[0048] 5. Limiting component; 50. Tissue culture stem cutting limiting ring; 51. Tissue culture stem limiting baffle. Detailed Implementation

[0049] Example 1

[0050] See appendix Figure 1-9 A plant stem cutting shear for tissue culture includes: a guide rod support 1, four slide rail-guide groove cutting shears 2, a cutting spacing adjustment assembly 3, a cutting drive assembly 4, and a limiting assembly 5, wherein:

[0051] The guide rod bracket 1 includes a U-shaped bracket 10, four guide rods 11, and a side handle 12. The four guide rods 11 are perpendicular to the two side wall plates of the U-shaped bracket 10, and the line connecting the centers of the projections of the four guide rods 11 on the side wall forms a rectangle. The side handle 12 is fixed to the outside of the side wall plate of the U-shaped bracket 10.

[0052] The four slide rail-guide groove cutting shears 2 have the same structure and are slidably connected to the guide rod 11 in the left and right directions.

[0053] The slide rail-guide groove cutting shear 2 includes a slide rail mounting plate 20, a slider 21, a fixing block 22, a cutting shear body A 23, a cutting shear body B 24, a guide groove pin 25, a connecting column 26, and a guide plate 27;

[0054] The slide rail mounting plate 20 is slidably connected to the four guide rods 11. The upper end of the slide rail mounting plate 20 is provided with a pointed adjustment platform 20b, which can be used to adjust the position of the four slide rail-guide groove cutting shears 2.

[0055] The slide rail mounting plate 20 is provided with a slide rail 20a in the middle, and the slider 21 is disposed in the slide rail 20a and can slide along it in front and back.

[0056] The cutting shear blades A23 and B24 are arranged with their blades facing each other and intersecting, and are simultaneously axially connected to the front of the slider 21;

[0057] The fixing block 22 is fixedly connected to the slider 21, and the rear side of the fixing block 22 is fixedly connected to the drive connecting rod 43 of the cutting drive assembly 4 by a threaded connection;

[0058] The guide plate 27 is fixedly connected to the slide rail mounting plate 20 in parallel via the connecting column 26. The guide plate 27 is provided with an upper guide groove 27a and a lower guide groove 27b. Both guide grooves are straight grooves and are symmetrically shaped like the number "eight".

[0059] The cutting shear blades A23 and B24 are provided with guide pins 25 perpendicularly on the same side of the rear handle; the two guide pins 25 are located in the straight grooves of the upper guide groove 27a and the lower guide groove 27b respectively, and can slide along them.

[0060] The linear actuator of the cutting drive assembly 4 can push and pull the fixing block 22 back and forth through the connecting rod 43 to realize the forward opening and backward closing of the slide rail-guide groove cutting shear 2.

[0061] See appendix Figure 3 and attached Figure 4 The length of the guide pin 25 at the rear handle of the cutting shear body A23 is longer than the length of the guide pin 25 at the rear handle of the cutting shear body B24 by the thickness of the blade body.

[0062] The shear spacing adjustment component 3 includes a scale bar frame 30 and a damping ring 31;

[0063] The left and right ends of the scale bar frame 30 are fixed to the side walls of the U-shaped bracket 10; the pointed adjustment platform 20b at the upper end of the rail mounting plate 20 is located inside the frame, and its pointed end is opposite to the scale of the scale bar frame 30.

[0064] The damping ring 31 is disposed on the outer edge of the sliding engagement guide hole between the slide rail mounting plate 20 and the guide rod 11, so that the sliding between the slide rail mounting plate 20 and the guide rod 11 is a micro-damped sliding.

[0065] When the slide rail mounting plate 20 is subjected to sufficient lateral thrust, it can slide relative to the guide rod 11. When the lateral force is removed, the slide rail mounting plate 20 remains stationary relative to the guide rod 11.

[0066] The cutting drive assembly 4 includes a cutting linear actuator 40, a drive slide plate 41, a drive slider 42, and a drive connecting rod 43.

[0067] The cutting linear actuator 40 can be selected as a hydraulic cylinder or a pneumatic cylinder, and includes an actuator cylinder body 40a and an actuator telescopic rod 40b; the front part of the actuator cylinder body 40a passes through the mounting hole 10b of the U-shaped bracket 10 and is fixedly connected by a nut.

[0068] The front end of the actuator telescopic rod 40b is fixedly connected to the rear end of the drive slide plate 41, and the left and right side protrusions of the drive slide plate 41 are slidably connected to the slide plate guide rails 10a on the left and right sides of the U-shaped bracket 10.

[0069] The drive slide plate 41 is provided with a slide rail parallel to the guide rod 11. The rear sides of the four drive connecting rods 43 are all fixedly connected to the drive slider 42. The drive slider 42 is located in the slide rail and can slide left and right relative to the drive slide plate 41.

[0070] This forms a nested vertical bidirectional slide rail-slider structure (front and back - left and right).

[0071] The limiting component 5 includes two tissue culture stem cutting limiting rings 50 and a tissue culture stem limiting baffle 51. The root parts of the two tissue culture stem cutting limiting rings 50 are respectively fixedly connected to the two side walls of the U-shaped support 10. The inner diameter of the cylindrical ring at the outer end can be reasonably selected and replaced according to the outer diameter of the actual tissue culture plant stem segment cut. The tissue culture stem limiting baffle 51 is fixedly connected to the right side wall of the U-shaped support 10.

[0072] Example 2

[0073] In some embodiments, the number of slide rail-guide groove cutting shears 2 can be set to n (n≥3). The position and spacing of multiple slide rail-guide groove cutting shears 2 can be adjusted by manually pushing the tip adjustment platform 20b of the slide rail mounting plate 20 and using the scale of the scale bar frame 30 as a reference.

[0074] The cutting drive assembly 4 can still adopt the nested vertical bidirectional slide rail-slider structure described above. Only the corresponding drive slider 42 and drive connecting rod 43 need to be added according to the number of slide rail-guide groove cutting shears 2 to complete the opening and closing drive of multiple slide rail-guide groove cutting shears 2.

[0075] In Example 1, the forward opening and backward closing of the slide rail-guide groove cutting shear 2 can be achieved by adjusting the orientation of the symmetrical "figure-eight" shape of the upper guide groove 27a and the lower guide groove 27b of the guide plate 27 (see Appendix). Figure 3 With the "figure-eight" shape facing backward, the slide rail-guide groove cutting shear 2 can close forward and open backward, thus enabling the driving shearing function.

[0076] This utility model provides a plant stem segment cutting shear for tissue culture, the working principle of which is as follows:

[0077] First, the tissue culture stem cutting limiting ring 50 in the device is reasonably selected and replaced according to the outer diameter of the actual tissue culture plant stem segment being cut; before cutting the tissue culture stem, the cutting device of this utility model is used to remove a certain length of the head and tail of the plant stem segment to ensure flatness.

[0078] During operation, first manually push the pointed adjustment platform 20b of the slide rail mounting plate 20, and use the scale of the scale bar frame 30 in the shear spacing adjustment component 3 as a reference to adjust the position and spacing of the slide rail-guide groove cutting shear 2 according to the required length; after completion, the position of the slide rail-guide groove cutting shear 2 is no longer adjusted.

[0079] For example, in the above embodiment, using four slide rail-guide groove cutting shears 2, four effective lengths can be cut. The first effective length is the distance between the slide rail-guide groove cutting shear 2 closest to the tissue culture stem limiting baffle 51 and its end face. The second, third, and fourth effective lengths are the distances between two slide rail-guide groove cutting shears 2 that are successively close to each other. In summary, the four effective lengths can be the same or different. Similarly, when using n slide rail-guide groove cutting shears 2, n effective lengths can be cut, and these n effective lengths can be the same or different.

[0080] Subsequently, the actuator telescopic rod 40b of the linear actuator 40 in the cutting drive assembly 4 drives the drive slide plate 41 to move forward, and then drives the slide rail-guide groove cutting shear 2 to open forward through the four drive connecting rods 43; and uses tweezers to hold the plant stem segment so that it passes through the tissue culture stem cutting limit rings 50 on the left and right sides and puts one end of the tissue culture stem against the tissue culture stem limit baffle 51.

[0081] Finally, the actuator extension rod 40b of the linear actuator 40 in the cutting drive assembly 4 drives the drive slide plate 41 to move backward, and then drives the slide rail-guide groove cutting shear 2 to close backward through the four drive connecting rods 43, completing one cutting task; usually, after setting the length of the tissue culture stem cutting segment, a large number of tissue culture plant stem segments can be cut according to this length.

[0082] In summary, this utility model of a plant stem segment cutting shear for tissue culture can accurately and quickly cut tissue culture plant stem segments of the required length. It can cut plant stem segments of the same or different lengths simultaneously, which greatly improves work efficiency and accuracy compared to ordinary manual single-segment cutting. It should be noted that, in order to better showcase the internal structure of this utility model, the external protective cover of the cutting device is not shown. In actual production and use, a protective cover should be added for operational safety, and the equipment should be operated properly.

Claims

1. A cutting shear for plant stem sections for tissue culture, characterized by: It includes guide rod support (1), n handle slide rail-guide slot cutting scissors (2), cutting distance adjusting assembly (3), cutting drive assembly (4), limiting assembly (5). The guide rod support (1) includes a U-shaped support (10), a guide rod (11) and a side handle (12), and the guide rod (11) is vertically arranged between the two side wall plates of the U-shaped support (10). The n handle slide rail-guide slot cutting scissors (2) are structurally identical and are connected with the guide rod (11) left and right slidingly, and n is greater than or equal to 3. The slide rail-guide slot cutting scissors (2) include a slide rail mounting plate (20), a sliding block (21), a fixed block (22), a cutting scissors body A (23), a cutting scissors body B (24), a guide slot pin (25), a connecting column (26) and a guide plate (27). The slide rail mounting plate (20) is connected with the guide rod (11) slidingly, and the slide rail mounting plate (20) is provided with a pointed head adjusting table (20b) at the upper end. The slide rail (20a) is arranged in the middle of the slide rail mounting plate (20), and the sliding block (21) is arranged in the slide rail (20a) and can slide forward and backward. The cutting scissors body A (23) and the cutting scissors body B (24) are arranged in a cross shape with the cutting edges opposite to each other and are connected with the sliding block (21) on the same shaft. The fixed block (22) is fixedly connected with the sliding block (21), and the rear side of the fixed block (22) is fixedly connected with a drive connecting rod (43) of the cutting drive assembly (4). The guide plate (27) is connected with the slide rail mounting plate (20) through the connecting column (26), and the guide plate (27) is provided with an upper guide slot (27a) and a lower guide slot (27b), both of which are straight slots and are symmetrically arranged in an "eight" shape. The guide slot pins (25) are vertically arranged at the same side of the rear handles of the cutting scissors body A (23) and the cutting scissors body B (24), and the guide slot pins (25) are respectively arranged in the upper guide slot (27a) and the lower guide slot (27b) and slide along the guide slots. The linear drive of the cutting drive assembly (4) can push and pull the sliding block (21) to move forward and backward through the connecting rod (43), so as to realize the opening and closing movement of the slide rail-guide slot cutting scissors (2).

2. A plant stem section cutting shear for tissue culture according to claim 1, characterized in that: The lengths of the guide slot pins (25) at the rear handles of the cutting scissors body A (23) and the cutting scissors body B (24) are different by the thickness of a cutting body.

3. The plant stem cutting scissors for tissue culture according to claim 1 or 2, characterized in that: The cutting distance adjusting assembly (3) includes a scale strip frame (30) and a damping ring (31). The two ends of the scale strip frame (30) are fixedly connected with the side wall plates of the U-shaped support (10) symmetrically, and the pointed end of the pointed head adjusting table (20b) at the upper end of the slide rail mounting plate (20) is opposite to the scale side of the scale strip frame (30). The damping ring (31) is arranged on the outer edge of the sliding fit guide hole between the slide rail mounting plate (20) and the guide rod (11), so that the sliding between the slide rail mounting plate (20) and the guide rod (11) is damping sliding.

4. The plant stem cutting scissors for tissue culture according to claim 3, characterized in that: The cutting driving assembly (4) comprises a cutting linear actuator (40), a driving sliding plate (41), a driving sliding block (42) and a driving connecting rod (43), The cutting linear actuator (40) comprises an actuator cylinder (40a) and an actuator telescopic rod (40b); The actuator cylinder (40a) is fixed to the rear end of the U-shaped support (10), and the front end of the actuator telescopic rod (40b) is fixedly connected with the rear end of the driving sliding plate (41), The driving sliding plate (41) is slidably connected with the sliding plate guide rails (10a) on the left and right sides of the U-shaped support (10) in front and back directions; The driving sliding plate (41) is internally provided with a sliding rail parallel to the guide rod (11), the rear side of the driving connecting rod (43) is fixedly connected with the driving sliding block (42), and the driving sliding block (42) is slidably arranged in the sliding rail of the driving sliding plate (41).

5. The plant stem cutting shear for tissue culture according to claim 4, characterized in that: The limiting assembly (5) comprises a tissue culture stem cutting limiting ring (50) and a tissue culture stem limiting baffle (51), and the tissue culture stem limiting baffle (51) is fixedly connected to one side wall plate of the U-shaped support (10).

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