Lifting and clamping device for cryopreservation of biological samples

Abstract

The utility model relates to the technical field of biological sample cryopreservation devices, in particular to a lifting and clamping device for biological sample cryopreservation, which comprises a material taking port arranged on a support plate and used for a test tube box to pass through, and a sealing cover arranged at the material taking port and used for covering the material taking port, a material taking mechanism for sequentially clamping the sealing cover and the test tube box is arranged on the vertical linear module; the material taking opening is formed below the material taking mechanism; the test tube box loading barrel comprises a loading barrel body used for containing test tube boxes, a loading barrel cover used for covering a barrel opening of the loading barrel body is arranged at the top of the loading barrel body, and a barrel cover handle is arranged at the top of the loading barrel cover. And a linkage clamping mechanism for clamping a barrel cover handle is arranged on the sealing cover. Through cooperation of the material taking mechanism and the linkage clamping mechanism, the material taking mechanism not only can clamp the test tube box, but also can clamp the sealing cover and the loading barrel cover, so that the step of clamping the test tube box is reduced, the clamping efficiency is improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of biological sample freezing devices, in particular to a lifting and clamping device for freezing biological samples. Background Art

[0002] In the biomedical field, biological samples such as blood samples, vaccines, and bacterial and viral strains need to be placed in liquid nitrogen for long-term active preservation. However, in the process of transporting biological samples to the freezing equipment, the biological samples need to be loaded into a test tube box, and then the test tube box is placed in a test tube box loading barrel. The test tube box loading barrel is transported by an AGV vehicle to transport the test tube box loading barrel to the designated freezing equipment for freezing. In order to prevent staff from directly contacting the test tube box loading barrel, a specific clamping device is required to remove the test tube box containing the biological sample from the test tube box loading barrel. After removal, the test tube box needs to be scanned for identification. After the scanning is completed, the test tube box is transferred to the freezing rack, and the freezing rack is placed in the liquid nitrogen tank of the freezing equipment for low-temperature refrigeration.

[0003] Before taking the biological sample out of the test tube box loading barrel, the lid on the test tube box loading barrel needs to be removed first, and then the test tube box in the test tube box loading barrel can be taken out; however, the existing clamping device has the function of stably clamping the test tube box, but does not have the function of clamping the lid on the test tube box loading barrel, so it is necessary to set up multiple clamping devices to clamp the test tube box and the lid on the test tube box loading barrel respectively. The existing clamping device has a single function and leads to high cost. Therefore, a lifting clamping device for freezing biological samples is provided to solve the above technical problems. Utility Model Content

[0004] The utility model aims to provide a lifting clamping device for freezing biological samples in view of the shortcomings of the prior art, so as to solve the technical problems that the existing clamping devices have a single function and result in high costs.

[0005] To achieve the above purpose, the technical solution of the utility model is as follows:

[0006] A lifting and clamping device for freezing biological samples comprises a support plate and a support truss arranged on the support plate, a horizontal linear module is arranged on the support truss, and a vertical linear module is arranged on the horizontal linear module; a material taking port for a test tube box to pass through is arranged on the support plate, and a sealing cover is placed at the material taking port to cover it, and a material taking mechanism for sequentially clamping the sealing cover and the test tube box is arranged on the vertical linear module; the material taking port is placed below the material taking mechanism;

[0007] The test tube box loading barrel comprises a loading barrel body for accommodating the test tube box, a loading barrel cover for covering the barrel mouth is arranged on the top of the loading barrel body, and a barrel cover handle is arranged on the top of the loading barrel cover; and a linkage clamping mechanism for clamping the barrel cover handle is arranged on the sealing cover.

[0008] Furthermore, the material taking mechanism includes a clamping cylinder installed on the vertical linear module, and clamping blocks are provided on both movable ends of the clamping cylinder, and protrusions are provided on the sides where the clamping blocks on both sides are close to each other to clamp the sealing cover and enable the linkage clamping mechanism to operate.

[0009] Furthermore, an elastic anti-slip part for increasing friction is provided on the side where the two side clamping blocks are close to each other.

[0010] Furthermore, the linkage clamping mechanism includes a pair of clamping assemblies arranged in a mirror image; a pair of positioning holes for positioning the clamping block is provided on the sealing cover; the clamping assembly includes a fixed block arranged on the sealing cover, and a movable block is movably provided on the fixed block, one end of the movable block is placed at the positioning hole and is used to contact the protrusion, and the other end of the movable block is provided with a clamping portion extending to the bottom of the sealing cover and used to clamp the barrel cover handle.

[0011] Furthermore, a mounting block is provided at the center point of the sealing cover, and a spring for applying force to the movable block is provided between the movable block and the mounting block.

[0012] Furthermore, a transfer mechanism is included for transferring the test tube box loading bucket to the material taking port.

[0013] Furthermore, a barrel cover placement location for placing a sealing cover and a loading barrel cover is provided on the support plate, and the barrel cover placement location is located on a track of the transverse movement of the material taking mechanism.

[0014] Furthermore, the transverse linear module includes a transverse guide rail installed on the supporting truss, and a sliding seat that can slide back and forth laterally is provided on the transverse guide rail, and the vertical linear module is arranged on the sliding seat; a first screw rod arranged laterally is provided in the transverse guide rail, and the first screw rod is threadedly connected to the sliding seat, and a first servo motor is also installed on the transverse guide rail, and the output shaft of the first servo motor is connected to one end of the first screw rod through a transmission member.

[0015] Furthermore, the vertical linear module includes a vertical guide rail installed on a sliding seat, the vertical guide rail is provided with a slider that can slide up and down, the slider is provided with a lifting frame, and the clamping cylinder is arranged on the lifting frame; a second servo motor with an output shaft facing downward is installed on the top of the vertical guide rail, and a vertically arranged second screw rod is provided on the output shaft of the second servo motor, and the second screw rod is threadedly connected to the slider.

[0016] The beneficial effects of the utility model are as follows: the test tube box loading barrel is sent to align with the material taking port, and then moved upward to make the top of the loading barrel body contact with the bottom of the support plate, and the barrel cover handle on the loading barrel cover is placed in the linkage clamping mechanism on the sealing cover, and then the vertical linear module is operated to drive the material taking mechanism to move downward, so that the material taking mechanism clamps the sealing cover, and the material taking mechanism causes the linkage clamping mechanism to operate after clamping the sealing cover to clamp the barrel cover handle, and in the process of the vertical linear module driving the material taking mechanism to move upward, the sealing cover and the loading barrel cover are taken away at the same time, and through the cooperation of the material taking mechanism and the linkage clamping mechanism, the material taking mechanism can not only clamp the test tube box, but also clamp the sealing cover and the loading barrel cover, thereby reducing the steps of clamping the test tube box, improving the clamping efficiency, and reducing the cost.

[0017] In addition, when the top of the loading barrel body contacts the bottom of the support plate and the loading barrel cover is removed, the loading barrel body is connected to the relatively sealed space through the material taking port, so that the test tube box placed in the loading barrel body is always in a relatively sealed environment; under the action of the sealing cover set at the material taking port, the horizontal linear module, the vertical linear module and the material taking mechanism are always in a relatively sealed space, so that the test tube box can be transported in a relatively sealed state to prevent bacteria from entering. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0019] Figure 2 It is a partial structural schematic diagram of the utility model.

[0020] Figure 3 It is a structural schematic diagram of the horizontal linear module, the vertical linear module and the material taking mechanism of the utility model.

[0021] Figure 4 It is a structural schematic diagram of the linkage clamping mechanism of the utility model.

[0022] Figure 5 This is a schematic structural diagram of the linkage clamping mechanism of the utility model from another perspective.

[0023] Figure 6 The figure is a schematic diagram of the internal structure of the test tube box loading barrel of the utility model.

[0024] Reference numerals include:

[0025] 2. Transfer mechanism; 3. Test tube box loading barrel; 301. Loading barrel body; 302. Loading barrel cover; 303. Barrel cover handle; 304. Test tube box; 4. Support plate; 501. Support truss; 502. Horizontal linear module; 5021. Horizontal guide rail; 5022. Sliding seat; 5023. First screw rod; 5024. First servo motor; 5025. Transmission member; 503. Vertical linear module; 5031. Vertical guide rail; 5032. Sliding block; 5033. The second servo motor; 5034, the second screw rod; 5035, the lifting frame; 5036, the guide rod; 504, the material taking mechanism; 5041, the clamping claw cylinder; 5042, the clamping block; 5043, the raised portion; 5044, the elastic anti-slip part; 505, the sealing cover; 5051, the fixed block; 5052, the movable block; 5053, the clamping portion; 5054, the mounting block; 5055, the spring; 5056, the positioning hole; 506, the material taking port; 507, the barrel cover placement place. DETAILED DESCRIPTION

[0026] The following is a detailed description of a lifting and clamping device for freezing biological samples of the present invention in conjunction with the accompanying drawings.

[0027] like Figure 1-2 As shown, an embodiment of the lifting and clamping device for freezing biological samples of the utility model includes a support plate 4 fixedly arranged on a liquid nitrogen tank (not shown in the figure), a support truss 501 is fixedly arranged on the top of the support plate 4, a horizontal linear module 502 is arranged on the support truss 501, and a vertical linear module 503 is arranged on the horizontal linear module 502. By running the horizontal linear module 502, the vertical linear module 503 can be made to move back and forth horizontally on the support truss 501. The vertical linear module 503 is provided with a material picking mechanism 504 for clamping the test tube box 304. The material picking mechanism 504 can move up and down by running the vertical linear module 503. With the cooperation of the vertical linear module 503 and the horizontal linear module 502, the material picking mechanism 504 can freely move vertically and horizontally. After the test tube box loading barrel 3 is moved to the specified position, the material picking mechanism 504 is controlled to move downward to clamp the test tube box 304 placed in the test tube box loading barrel 3, and then the test tube box 304 is transported to the next mechanism.

[0028] The test tube box loading barrel 3 includes a loading barrel body 301 (such as Figure 6As shown, a test tube box 304 containing a biological sample is placed in a loading barrel body 301, and a loading barrel cover 302 for covering the barrel mouth is provided on the top of the loading barrel body 301. After the biological sample is placed in the test tube box 304, the test tube box 304 is placed in the loading barrel body 301, and the loading barrel body 301 is covered by the loading barrel cover 302. When the AGV trolley transports the biological sample, the loading barrel body 301 can not only keep the temperature, but also protect the test tube box 304; in addition, a barrel cover handle 303 is provided on the top of the loading barrel cover 302, and the barrel cover handle 303 is used to facilitate the loading barrel cover 302 to be taken.

[0029] The horizontal linear module 502, the vertical linear module 503 and the material taking mechanism 504 arranged on the support plate 4 are all placed in a relatively sealed space, so that the test tube box 304 can be transported in a relatively sealed environment. In order to clamp the test tube box 304 into the relatively sealed space, a material taking port 506 is provided on the support plate 4 for the test tube box 304 to pass through and is placed directly below the material taking mechanism 504. A sealing cover 505 is placed at the material taking port 506 to cover it. Under the action of the sealing cover 505, the horizontal linear module 502, the vertical linear module 503 and the material taking mechanism 504 are always in a relatively sealed space to prevent bacteria from entering.

[0030] The lifting and clamping device also includes a transfer mechanism 2 for transferring the test tube box loading barrel 3 to the material taking port 506. After the test tube box loading barrel 3 is automatically placed on the transfer mechanism 2 by the AGV trolley for transporting the test tube box loading barrel 3, the transfer mechanism 2 is operated to send the test tube box loading barrel 3 to the material taking port 506, and then the test tube box loading barrel 3 is driven to move upward to contact the top of the loading barrel body 301 with the bottom of the support plate 4, and then the vertical linear module 503 is operated to drive the material taking mechanism 504 to move downward, so that the material taking mechanism 504 clamps the sealing cover 505, thereby clamping the sealing cover 505. To the side of the material taking port 506, the material taking mechanism 504 is reset, and the loading barrel cover 302 is removed from the loading barrel body 301 with the same mechanical action. After the loading barrel cover 302 is removed, the loading barrel body 301 is connected to the relatively sealed space through the material taking port 506, so that the test tube box 304 placed in the loading barrel body 301 is always in a relatively sealed environment; finally, the vertical linear module 503 cooperates with the material taking mechanism 504 to take out the test tube box 304 in the loading barrel body 301, and the horizontal linear module 502 is operated to transport the test tube box 304 horizontally to the scanning position for scanning processing.

[0031] In order to facilitate the simultaneous removal of the sealing cover 505 and the loading barrel cover 302, a linkage clamping mechanism for clamping the barrel cover handle 303 is provided on the sealing cover 505. After the transfer mechanism 2 is operated to send the test tube box loading barrel 3 to align with the material removal port 506, the test tube box loading barrel 3 is driven to move upward to contact the top of the loading barrel body 301 with the bottom of the support plate 4. The barrel cover handle 303 on the loading barrel cover 302 is placed in the linkage clamping mechanism, and then cooperates with the material removal mechanism 504 through the vertical linear module 503. After the material removal mechanism 504 clamps the sealing cover 505, the linkage clamping mechanism operates to clamp the barrel cover handle 303. In the process of the vertical linear module 503 driving the material removal mechanism 504 to move upward, the sealing cover 505 and the loading barrel cover 302 are removed at the same time, reducing the steps of clamping the test tube box 304 and improving the clamping efficiency. In addition, a barrel cover placement place 507 for placing the sealing cover 505 and the loading barrel cover 302 is provided on the support plate 4. The barrel cover placement place 507 is placed on the track of the horizontal movement of the material taking mechanism 504. After the material taking mechanism 504 takes away the sealing cover 505 and the loading barrel cover 302 at the same time, the sealing cover 505 and the loading barrel cover 302 can be placed on the barrel cover placement place 507 at one time. When the test tube box 304 is subsequently put back into the loading barrel body 301, the material taking mechanism 504 can clamp the sealing cover 505 and the loading barrel cover 302 to the initial position at the barrel cover placement place 507.

[0032] like Figure 3 As shown, the transverse linear module 502 includes a transverse guide rail 5021 installed on the supporting truss 501, and a sliding seat 5022 is provided on the transverse guide rail 5021, and the sliding seat 5022 can slide back and forth along the transverse direction on the transverse guide rail 5021, and the vertical linear module 503 is arranged on the sliding seat 5022; in order to enable the sliding seat 5022 to automatically slide on the transverse guide rail 5021, a transversely arranged first screw rod 5023 is provided in the transverse guide rail 5021, and the first screw rod 5023 is threadedly connected to the sliding seat 5022, and a first servo motor 5024 is also installed on the transverse guide rail 5021, and the output shaft of the first servo motor 5024 is connected to one end of the first screw rod 5023 through a transmission member 5025. The first servo motor 5024 is started to drive the first screw rod 5023 to rotate through the transmission member 5025, thereby driving the sliding seat 5022 to slide back and forth freely on the transverse guide rail 5021.

[0033] Furthermore, the vertical linear module 503 includes a vertical guide rail 5031 installed on the sliding seat 5022, and a slider 5032 that can slide up and down is provided on the vertical guide rail 5031, and a lifting frame 5035 is provided on the slider 5032. The material picking mechanism 504 is arranged on the lifting frame 5035. When the slider 5032 slides up and down on the vertical guide rail 5031, the lifting frame 5035 and the material picking mechanism 504 arranged on the lifting frame 5035 can be moved up and down to control the material picking mechanism 504 to be placed at a specified height, so as to clamp the sealing cover 505 and the loading barrel cover 302 together to the barrel cover placement place 507. After the material picking mechanism 504 is reset, it passes through the material picking port 506 to extend into the loading barrel body 301, and the material picking mechanism 504 is operated to clamp the test tube box 304 containing the biological sample, and then the slider 5032 is driven to move upward to realize automatic lifting and material picking processing.

[0034] In order to drive the slider 5032 to freely move up and down on the vertical guide rail 5031, a second servo motor 5033 with an output shaft facing downward is installed on the top of the vertical guide rail 5031, and a second screw rod 5034 arranged vertically is provided on the output shaft of the second servo motor 5033, and the second screw rod 5034 is threadedly connected with the slider 5032; when it is necessary to control the height of the material taking mechanism 504, the second servo motor 5033 is started, and the second screw rod 5034 is driven to rotate to drive the slider 5032 to freely move up and down on the vertical guide rail 5031. In addition, a vertically arranged guide rod 5036 is fixed on the lifting frame 5035, and the guide rod 5036 is slidably arranged with the vertical guide rail 5031. Under the action of the guide rod 5036, the lifting frame 5035 can be more stable when moving up and down, thereby improving the accuracy of material taking.

[0035] Furthermore, the material-retrieving mechanism 504 includes a clamping cylinder 5041 installed at the bottom end of the lifting frame 5035, and clamping blocks 5042 are provided on both movable ends of the clamping cylinder 5041, and protrusions 5043 are provided on the sides where the clamping blocks 5042 on both sides are close to each other, which clamp the sealing cover 505 and enable the linkage clamping mechanism to operate; after controlling the clamping cylinder 5041 to move downward to a specified height, so that the clamping blocks 5042 on both sides are respectively placed at specified positions, the clamping cylinder 5041 is operated, and the clamping blocks 5042 on both sides are close to each other to clamp the sealing cover 505. At the same time, the barrel cover handle 303 is clamped through the linkage clamping mechanism, so that the sealing cover 505 and the loading barrel cover 302 can be taken away at one time. Furthermore, when the clamping jaw cylinder 5041 clamps the test tube box 304 for transportation, the protrusion 5043 can also hold the test tube box 304. When the clamping jaw cylinder 5041 is operated to control the clamping block 5042 to clamp the test tube box 304, the test tube box 304 is driven to move upward and then move horizontally. During the movement, the protrusion 5043 always holds the test tube box 304 to prevent the test tube box 304 from falling during the clamping and transportation of the test tube box 304, thereby causing leakage of the biological sample. In addition, an elastic anti-slip member 5044 for increasing friction is provided on the side where the clamping blocks 5042 on both sides are close to each other. The elastic anti-slip member 5044 can be a silicone strip, a rubber strip, or a PVC plastic strip.

[0036] like Figure 4-5 As shown, the linkage clamping mechanism includes a pair of clamping components arranged in a mirror image. After the clamping claw cylinder 5041 is controlled to move downward to a specified height, the clamping claw cylinder 5041 is operated to make the clamping blocks 5042 on both sides approach each other, driving the protrusions 5043 to approach each other to push the pair of clamping components to operate simultaneously, thereby clamping the barrel cover handle 303 set on the loading barrel cover 302. In addition, a pair of positioning holes 5056 for positioning the clamping blocks 5042 are provided on the sealing cover 505. After the clamping claw cylinder 5041 is controlled to move downward to a specified height, the clamping blocks 5042 on both sides are respectively inserted into different positioning holes 5056, and the protrusions 5043 are also placed in the positioning holes 5056. Then the clamping claw cylinder 5041 is operated, and the clamping blocks 5042 approach each other. While clamping the sealing cover 505, the clamping blocks 5042 push the clamping components on both sides to operate through the protrusions 5043 to clamp the barrel cover handle 303.

[0037] Among them, the clamping assembly includes a fixed block 5051 arranged on the sealing cover 505, and a movable block 5052 is movably arranged on the fixed block 5051, one end of the movable block 5052 is placed at the positioning hole 5056 and is used to contact the protrusion 5043, and the other end of the movable block 5052 is provided with a clamping portion 5053 extending to the bottom of the sealing cover 505 and used to clamp the barrel cover handle 303; when the clamping blocks 5042 on both sides are respectively inserted into different positioning holes 5056, the clamping claw cylinder 5041 is operated, and the clamping blocks 5042 are close to each other so that the protrusion 5043 pushes the movable block 5052 to move, and the movable blocks 5052 on both sides are close to each other, so that the barrel cover handle 303 is clamped by the clamping portion 5053, so as to realize the simultaneous clamping of the sealing cover 505 and the loading barrel cover 302. When the force applied to the movable block 5052 stops, in order to enable the movable block 5052 to return to its initial position, a mounting block 5054 is provided at the center point of the sealing cover 505, and a spring 5055 for applying force to the movable block 5052 is provided between the movable block 5052 and the mounting block 5054; when the clamping portion 5053 clamps the barrel cover handle 303, the spring 5055 is compressed, and after the force applied to the movable block 5052 stops, under the action of the compressed spring 5055, the movable block 5052 returns to the direction away from each other with the clamping portion 5053.

[0038] In summary, it can be seen that the utility model has the above-mentioned excellent characteristics, which can enhance the performance unprecedented in the prior art and become a product with great practical value.

[0039] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A lifting and clamping device for freezing biological samples, characterized in that: The invention comprises a support plate (4) and a support truss (501) arranged on the support plate (4); a horizontal linear module (502) is arranged on the support truss (501), and a vertical linear module (503) is arranged on the horizontal linear module (502); a material taking port (506) for a test tube box (304) to pass through is arranged on the support plate (4), and a sealing cover (505) is placed at the material taking port (506) to cover the material taking port; a material taking mechanism (504) for sequentially clamping the sealing cover (505) and the test tube box (304) is arranged on the vertical linear module (503); the material taking port (506) is placed below the material taking mechanism (504); The test tube box loading barrel (3) comprises a loading barrel body (301) for accommodating a test tube box (304); a loading barrel cover (302) for covering the barrel opening is arranged on the top of the loading barrel body (301); and a barrel cover handle (303) is arranged on the top of the loading barrel cover (302); and a linkage clamping mechanism for clamping the barrel cover handle (303) is arranged on the sealing cover (505).

2. A lifting and clamping device for freezing biological samples according to claim 1, characterized in that: The material taking mechanism (504) comprises a clamping cylinder (5041) mounted on the vertical linear module (503), and clamping blocks (5042) are provided on both movable ends of the clamping cylinder (5041), and protrusions (5043) are provided on the sides of the clamping blocks (5042) close to each other, which clamp the sealing cover (505) and enable the linkage clamping mechanism to operate.

3. A lifting and clamping device for freezing biological samples according to claim 2, characterized in that: An elastic anti-slip part (5044) for increasing friction is provided on the side where the two side clamping blocks (5042) are close to each other.

4. The lifting and clamping device for freezing biological samples according to claim 2, characterized in that: The linkage clamping mechanism comprises a pair of clamping assemblies arranged in mirror image; a pair of positioning holes (5056) for positioning a clamping block (5042) are provided on the sealing cover (505); the clamping assembly comprises a fixed block (5051) arranged on the sealing cover (505), and a movable block (5052) is movably provided on the fixed block (5051), one end of the movable block (5052) is placed at the positioning hole (5056) and is used to contact the protrusion (5043), and the other end of the movable block (5052) is provided with a clamping portion (5053) extending to the bottom of the sealing cover (505) and used to clamp the barrel cover handle (303).

5. The lifting and clamping device for freezing biological samples according to claim 4, characterized in that: A mounting block (5054) is provided at the center point of the sealing cover (505), and a spring (5055) for applying force to the movable block (5052) is provided between the movable block (5052) and the mounting block (5054).

6. The lifting and clamping device for freezing biological samples according to claim 1, characterized in that: It comprises a transfer mechanism (2) for transferring a test tube box loading bucket (3) to a material taking port (506).

7. The lifting and clamping device for freezing biological samples according to claim 1, characterized in that: A barrel cover placement place (507) for placing a sealing cover (505) and a loading barrel cover (302) is provided on the support plate (4), and the barrel cover placement place (507) is placed on a track of the transverse movement of the material taking mechanism (504).

8. The lifting and clamping device for freezing biological samples according to claim 2, characterized in that: The transverse linear module (502) comprises a transverse guide rail (5021) mounted on the supporting truss (501), and a sliding seat (5022) capable of sliding back and forth transversely is arranged on the transverse guide rail (5021), and the vertical linear module (503) is arranged on the sliding seat (5022); a first screw rod (5023) arranged transversely is arranged in the transverse guide rail (5021), and the first screw rod (5023) is threadedly connected to the sliding seat (5022), and a first servo motor (5024) is also mounted on the transverse guide rail (5021), and an output shaft of the first servo motor (5024) is transmission-connected to one end of the first screw rod (5023) via a transmission member (5025).

9. The lifting and clamping device for freezing biological samples according to claim 8, characterized in that: The vertical linear module (503) comprises a vertical guide rail (5031) mounted on a sliding seat (5022), a slider (5032) which can slide up and down is arranged on the vertical guide rail (5031), a lifting frame (5035) is arranged on the slider (5032), and a clamping cylinder (5041) is arranged on the lifting frame (5035); a second servo motor (5033) with an output shaft facing downward is installed on the top of the vertical guide rail (5031), and a second screw rod (5034) arranged vertically is arranged on the output shaft of the second servo motor (5033), and the second screw rod (5034) is threadedly connected to the slider (5032).

Images