Novel pre-filled needle de-nesting machine

Abstract

The utility model relates to medical instrument technical field discloses a novel prefill needle nest -removing machine, including base, the recess is equipped with in base upper end surface center place, base upper end surface is equipped with the clamping structure, and the side surface center lower place of base is equipped with the lifting structure, the clamping structure includes first hydraulic cylinder, and first hydraulic cylinder is located the other side surface center lower place of base, and the second rotary motor is equipped with in first hydraulic cylinder output end center place, and the fixed base is equipped with in second rotary motor output end center place, and the long groove is equipped with in fixed base upper end surface center place rear place. In the utility model, through the rotation speed and direction of control second rotary motor, can accurate adjustment the clamping force of moving strip, adapts to the prefill needle of different size and material quality, and the synchronous rotation of first threaded rod and second threaded rod, has guaranteed that the opposite movement of two moving strips is synchronous, has guaranteed the stability and reliability of clamping action.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, and in particular to a novel pre-filled needle detachment machine. Background Technology

[0002] Pre-filled syringes typically contain a pre-filled syringe that can be used directly without additional drug filling steps. In the production process of pre-filled syringes, the detacher is a key piece of equipment, whose main function is to remove the pre-filled syringe from the pod and transport it to subsequent processing or packaging steps.

[0003] Traditional mechanical clamping devices typically employ a fixed clamping force, which is difficult to adapt to pre-filled needles of different sizes and materials. Excessive clamping force may cause deformation or damage to the pre-filled needles, while insufficient clamping force may lead to unstable clamping and affect production efficiency. Therefore, those skilled in the art have provided a novel pre-filled needle unpacking machine to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel pre-filled needle removal machine. By controlling the rotational speed and direction of the second rotary motor, the clamping force of the moving strip can be precisely adjusted to adapt to pre-filled needles of different sizes and materials. At the same time, the synchronous rotation of the first and second threaded rods ensures that the opposing movement of the two moving strips is synchronized, guaranteeing the stability and reliability of the clamping action.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a novel pre-filled needle detachment machine, comprising a base, a groove at the center of the upper end face of the base, a clamping structure at the upper end face of the base, and a lifting structure at the lower center of one side of the base; The clamping structure includes a first hydraulic cylinder located at the lower center of the other side of the base. A second rotary motor is located at the center of the output end of the first hydraulic cylinder, and a fixed seat is located at the center of the output end of the second rotary motor. A long groove is located at the rear center of the upper surface of the fixed seat, and a third rotary motor is located at the rear center of the lower inner wall of the long groove. A first threaded rod is fixedly connected to the output end of the third rotary motor, and a second threaded rod is fixedly connected to the front end face of the first threaded rod. A fixed strip is located at the center of the upper surface of the fixed seat, and movable strips are located at the front and rear centers of the upper surface of the fixed seat. The lower end of the movable strip at the front is sleeved on the rear center of the outer side of the first threaded rod, and the movable strip at the front is sleeved on the front center of the outer side of the second threaded rod. Through the above technical solution, the second rotary motor is controlled to start and drive the first and second threaded rods to rotate. The rotation of the first and second threaded rods drives the two moving bars to move towards the fixed bar in the middle to clamp the pre-charge needle. Then, the first hydraulic cylinder is controlled to start and pull the clamped pre-charge needle out of the nest box. The second rotary motor is then controlled to transport the clamped pre-charge needle to the next stage. By controlling the rotation speed and direction of the second rotary motor, the clamping force of the moving bars can be precisely adjusted to adapt to pre-charge needles of different sizes and materials. At the same time, the synchronous rotation of the first and second threaded rods ensures that the opposite movement of the two moving bars is synchronous, thus guaranteeing the stability and reliability of the clamping action.

[0006] Furthermore, the lifting structure includes a rectangular groove located at the center of the lower inner wall of the groove. Worm gears are provided at the front and rear positions of the center of the lower inner wall of the rectangular groove. A lead screw is provided on the upper end face of each of the two worm gears. The two worm gears are respectively sleeved on the lower outer center of the two lead screws. A movable plate is threadedly connected to the upper outer center of the two lead screws. A second hydraulic cylinder is provided at the center of the upper upper surface of the movable plate. A pin plate is provided at the center of the output end of the second hydraulic cylinder. A worm is rotatably connected to the center of the other inner side wall of the rectangular groove. The worm passes through one inner side wall of the rectangular groove and extends to one outer side wall of the base. Through the above technical solution, the worm gear is manually controlled to rotate, which drives two worm wheels to rotate. The two worm wheels then drive two lead screws to rotate, and the two lead screws, through a threaded connection, drive the second hydraulic cylinder on the moving plate to move up and down. This allows for the disassembly of pre-charged needles of different lengths. By manually controlling the rotation angle of the worm gear, the height of the moving plate and the second hydraulic cylinder can be precisely adjusted, thereby lifting pre-charged needles of different lengths and enabling the equipment to adapt to pre-charged needles of various specifications.

[0007] Furthermore, a support column is provided at the front center of one side of the base, and a first rotary motor is provided at the center of the upper end of the support column. The output end of the first rotary motor passes through one side of the base and extends to the other side. A cylinder is provided at the rear center of one side of the base, and the cylinder passes through one side of the base and extends to the other side. Rings are rotatably connected to the outer center of the cylinder on both sides. Conveyor belts are sleeved and connected to the outer center of the rings and the output end of the first rotary motor on both sides. The above technical solution controls the first rotary motor to drive the conveyor belt to rotate, and the conveyor belt drives the ring to rotate, forming a stable transmission system to stably transport the nest box.

[0008] Furthermore, limiting plates are provided on both sides of the center of the upper end surface of the base; Through the above technical solution, the limiting plate limits the nest box when the pre-filled needle leaves the nest, preventing the pre-filled needle from lifting the nest box when it leaves, thus affecting the nest removal effect.

[0009] Furthermore, a buffer seat is provided at the lower center of the rear end face of the base; The above technical solution protects the nest box after it has finished molting by using a cushioning seat, preventing it from falling directly and causing damage.

[0010] Furthermore, the first threaded rod and the second threaded rod have opposite thread configurations; The above technical solution enables the two moving bars to move towards the middle for clamping when the first and second threaded rods rotate in the same direction, by using opposite threaded configurations.

[0011] Furthermore, a handle is provided at one end of the outer center of the worm gear; The above technical solution allows for precise control of the lifting structure by manually rotating the worm gear using a handle.

[0012] This utility model has the following beneficial effects: In this invention, the novel pre-filled needle removal machine can precisely adjust the clamping force of the moving strip by controlling the rotation speed and direction of the second rotary motor, adapting to pre-filled needles of different sizes and materials. At the same time, the synchronous rotation of the first threaded rod and the second threaded rod ensures that the opposite movement of the two moving strips is synchronous, guaranteeing the stability and reliability of the clamping action.

[0013] In this invention, the height of the moving plate and the second hydraulic cylinder can be precisely adjusted by manually controlling the rotation angle of the worm gear, thereby enabling the lifting of pre-charge needles of different lengths and allowing the equipment to adapt to pre-charge needles of various specifications. Attached Figure Description

[0014] Figure 1 This is a perspective view of a novel pre-filled needle detachment machine proposed in this utility model; Figure 2 This is a perspective view of a novel pre-filled needle detachment machine proposed in this utility model. Figure 3 This is a perspective view of a novel pre-filled needle detachment machine lifting structure proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 4 Enlarged diagram of point B in the middle.

[0015] Legend: 1. Base; 2. Groove; 3. Clamping structure; 4. Lifting structure; 5. Support column; 6. First rotary motor; 7. Cylinder; 8. Ring; 9. Conveyor belt; 10. Limiting plate; 11. Buffer seat; 301. First hydraulic cylinder; 302. Second rotary motor; 303. Fixed seat; 304. Long groove; 305. Third rotary motor; 306. First threaded rod; 307. Second threaded rod; 308. Fixed bar; 309. Moving bar; 401. Rectangular groove; 402. Worm gear; 403. Lead screw; 404. Moving plate; 405. Second hydraulic cylinder; 406. Ejector plate; 407. Worm gear; 408. Handle. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Reference Figure 1-5 The present invention provides an embodiment of a novel pre-filled needle detachment machine, comprising a base 1, a groove 2 at the center of the upper surface of the base 1, a clamping structure 3 at the upper surface of the base 1, and a lifting structure 4 at the lower center of one side of the base 1.

[0018] like Figure 1 , 2As shown in Figure 3, the clamping structure 3 includes a first hydraulic cylinder 301, which is located at the lower center of the other side of the base 1. A second rotary motor 302 is located at the center of the output end of the first hydraulic cylinder 301, and a fixed seat 303 is located at the center of the output end of the second rotary motor 302. A long groove 304 is located at the rear center of the upper surface of the fixed seat 303, and a third rotary motor 305 is located at the rear center of the lower inner wall of the long groove 304. A first threaded rod 306 is fixedly connected to the output end of the third rotary motor 305, and a second threaded rod 307 is fixedly connected to the front end of the first threaded rod 306. A fixing strip 308 is located at the center of the upper surface of the fixed seat 303, and movable strips 309 are located at the front and rear centers of the upper surface of the fixed seat 303. The lower end of the movable strip 309 at the front is sleeved on the outer rear center of the first threaded rod 306. 09 is mounted on the outer center of the second threaded rod 307. The second rotary motor 302 is started to drive the first threaded rod 306 and the second threaded rod 307 to rotate. The rotation of the first threaded rod 306 and the second threaded rod 307 drives the two moving bars 309 to move towards the middle fixed bar 308 to clamp the pre-charge needle. Then, the first hydraulic cylinder 301 is started to pull the clamped pre-charge needle out of the nest box. The second rotary motor 302 is then controlled to transport the clamped pre-charge needle to the next stage. By controlling the rotation speed and direction of the second rotary motor 302, the clamping force of the moving bars 309 can be precisely adjusted to adapt to pre-charge needles of different sizes and materials. At the same time, the synchronous rotation of the first threaded rod 306 and the second threaded rod 307 ensures that the opposite movement of the two moving bars 309 is synchronous, ensuring the stability and reliability of the clamping action.

[0019] like Figure 1 , 3As shown in Figure 5, the lifting structure 4 includes a rectangular groove 401 located at the center of the lower inner wall of the groove 2. Worm gears 402 are provided at the front and rear positions of the center of the lower inner wall of the rectangular groove 401. A lead screw 403 is provided on the upper surface of each worm gear 402. The worm gears 402 are respectively sleeved on the lower outer center of the two lead screws 403. A movable plate 404 is threadedly connected to the upper outer center of the two lead screws 403. A second hydraulic cylinder 405 is provided at the center of the upper surface of the movable plate 404. A pin plate 406 is provided at the center of the output end of the second hydraulic cylinder 405. A worm gear 407 is rotatably connected to the center of the other inner wall of the rectangular groove 401. 07 passes through the inner wall of the rectangular groove 401 and connects to the outer wall of the base 1. The worm gear 407 is manually controlled to rotate, which drives the two worm wheels 402 to rotate. The two worm wheels 402 drive the two lead screws 403 to rotate. The rotation of the two lead screws 403 drives the second hydraulic cylinder 405 on the moving plate 404 to move up and down through the threaded connection, thereby realizing the discharging of pre-charge needles of different lengths. By manually controlling the rotation angle of the worm gear 407, the height of the moving plate 404 and the second hydraulic cylinder 405 can be precisely adjusted, thereby realizing the lifting of pre-charge needles of different lengths, so that the equipment can adapt to pre-charge needles of various specifications.

[0020] A support column 5 is located at the center of one side of the base 1, and a first rotary motor 6 is located at the center of the upper surface of the support column 5. The output end of the first rotary motor 6 passes through one side of the base 1 and extends to the other side. A cylinder 7 is located at the upper rear of the center of one side of the base 1, and the cylinder 7 passes through one side of the base 1 and extends to the other side. A ring 8 is rotatably connected to the outer center of the cylinder 7 on both sides. A conveyor belt 9 is sleeved and connected to the outer center of the ring 8 and the output end of the first rotary motor 6 on both sides. The first rotary motor 6 drives the conveyor belt 9 to rotate, and the conveyor belt 9 drives the ring 8 to rotate, forming a stable transmission system for stable transmission of the nest box.

[0021] Limiting plates 10 are provided on both sides of the center of the upper surface of the base 1. The limiting plates 10 limit the nest box when the pre-filling needle leaves the nest, so as to prevent the pre-filling needle from lifting the nest box when leaving the nest box and affecting the nest removal effect.

[0022] A buffer seat 11 is provided at the lower center of the rear end face of the base 1. The buffer seat 11 protects the nest box after it leaves the nest, preventing it from falling directly and causing damage to the nest box.

[0023] The first threaded rod 306 and the second threaded rod 307 have opposite thread settings. The opposite thread settings enable the first threaded rod 306 and the second threaded rod 307 to move the two moving bars 309 towards the middle for clamping when they rotate in the same direction.

[0024] A handle 408 is provided at one end of the outer center of the worm gear 407. The worm gear 407 is rotated by the handle 408, and the rotation of the worm gear 407 is manually controlled to precisely control the lifting structure 4.

[0025] Working principle: When using the device, first, manually control the worm gear 407 to rotate. The rotation of the worm gear 407 drives the two worm wheels 402 to rotate, which in turn drives the two lead screws 403 to rotate. The rotation of the two lead screws 403 drives the second hydraulic cylinder 405 on the moving plate 404 to move up and down through the threaded connection, thereby realizing the removal of pre-filled needles of different lengths from the nest. By manually controlling the rotation angle of the worm gear 407, the height of the moving plate 404 and the second hydraulic cylinder 405 can be precisely adjusted, thereby lifting the pre-filled needles of different lengths. This allows the device to adapt to pre-filled needles of various specifications. Then, control the first rotary motor 6 to drive the conveyor belt 9 to rotate, which in turn drives the ring 8 to rotate, forming a stable transmission system to stably transport the nest box. Finally, the nest box moves to the limit plate 10. When the device is in the upper position, the second rotary motor 302 is started to drive the first threaded rod 306 and the second threaded rod 307 to rotate. The rotation of the first threaded rod 306 and the second threaded rod 307 drives the two moving bars 309 to move towards the middle fixed bar 308 to clamp the pre-charge needle. Then, the first hydraulic cylinder 301 is started to pull the clamped pre-charge needle out of the nest box. The second rotary motor 302 is then controlled to transport the clamped pre-charge needle to the next stage. By controlling the rotation speed and direction of the second rotary motor 302, the clamping force of the moving bars 309 can be precisely adjusted to adapt to pre-charge needles of different sizes and materials. At the same time, the synchronous rotation of the first threaded rod 306 and the second threaded rod 307 ensures that the opposite movement of the two moving bars 309 is synchronous, ensuring the stability and reliability of the clamping action.

[0026] The first rotary motor 6 is a hybrid stepper motor, which controls its movement by receiving digital pulse signals. Each pulse signal corresponds to a step angle. By changing the frequency of the pulse signal, the speed of the motor can be controlled. This is a commonly used technique in existing transmission structures, and will not be elaborated on here.

[0027] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel pre-filled needle detachment machine, comprising a base (1), characterized in that: The base (1) has a groove (2) at the center of the upper end face, a clamping structure (3) at the upper end face, and a lifting structure (4) at the lower center of one side of the base (1). The clamping structure (3) includes a first hydraulic cylinder (301), which is located at the lower center of the other side of the base (1). A second rotary motor (302) is provided at the center of the output end of the first hydraulic cylinder (301), and a fixed seat (303) is provided at the center of the output end of the second rotary motor (302). A long groove (304) is provided at the rear center of the upper surface of the fixed seat (303), and a third rotary motor (305) is provided at the rear center of the lower inner wall of the long groove (304). 305) A first threaded rod (306) is fixedly connected to the output end. A second threaded rod (307) is fixedly connected to the front end face of the first threaded rod (306). A fixing strip (308) is provided at the center of the upper end face of the fixing seat (303). Movable strips (309) are provided at the front and rear of the center of the upper end face of the fixing seat (303). The lower end of the movable strip (309) at the front is sleeved on the outer center of the first threaded rod (306) at the rear. The movable strip (309) at the front is sleeved on the outer center of the second threaded rod (307) at the front.

2. The novel pre-filled needle detachment machine according to claim 1, characterized in that: The lifting structure (4) includes a rectangular groove (401), which is located at the center of the lower inner wall of the groove (2). Worm gears (402) are provided at the front and rear of the center of the lower inner wall of the rectangular groove (401). Screws (403) are provided on the upper end face of the two worm gears (402). The two worm gears (402) are respectively sleeved on the lower outer center of the two screws (403). A moving plate (404) is threadedly connected to the upper outer center of the two screws (403). A second hydraulic cylinder (405) is provided at the center of the upper end face of the moving plate (404). A pin plate (406) is provided at the center of the output end of the second hydraulic cylinder (405). A worm (407) is rotatably connected to the center of the other inner side wall of the rectangular groove (401). The worm (407) passes through one inner side wall of the rectangular groove (401) and extends to one outer side wall of the base (1).

3. The novel pre-filled needle detachment machine according to claim 1, characterized in that: A support column (5) is provided at the front center of one side of the base (1). A first rotary motor (6) is provided at the center of the upper end of the support column (5). The output end of the first rotary motor (6) passes through one side of the base (1) and extends to the other side. A cylinder (7) is provided at the rear center of one side of the base (1). The cylinder (7) passes through one side of the base (1) and extends to the other side. A ring (8) is rotatably connected to the outer center of the cylinder (7) on both sides. A conveyor belt (9) is sleeved and connected to the outer center of the ring (8) and the output end of the first rotary motor (6) on both sides.

4. A novel pre-filled needle detachment machine according to claim 3, characterized in that: Limiting plates (10) are provided on both sides of the center of the upper surface of the base (1).

5. A novel pre-filled needle detachment machine according to claim 1, characterized in that: A buffer seat (11) is provided at the lower center of the rear end face of the base (1).

6. A novel pre-filled needle detachment machine according to claim 1, characterized in that: The first threaded rod (306) and the second threaded rod (307) have opposite thread configurations.

7. A novel pre-filled needle detachment machine according to claim 2, characterized in that: A handle (408) is provided at one end of the outer center of the worm (407).

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