Non-standard medicine box automatic position correcting device

Abstract

The utility model relates to automatic position correction technical field discloses a kind of non-standard medicine box automatic position correction device, comprising: organism;Rotating disc, rotatably set in the organism, its upside is provided with the limiting mechanism for clamping medicine box;And correction mechanism, set above the movement path of rotating disc;The correction mechanism includes: at least one support and the mounting plate fixed on the support;Crosspiece, fixed on the upper surface of mounting plate;Motor, installed on the crosspiece, its output end is connected with synchronous pulley one.The utility model in the middle, by setting correction mechanism, utilize symmetrical conical head to extend into medicine box opening to guide centering, and by spring provide flexible buffer, can automatically correct the positioning deviation caused by non-standard medicine box size is not one.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic alignment, in particular to an automatic alignment device for non-standard medicine boxes. Background Art

[0002] In the modern pharmaceutical field, drug packaging is one of the key links to ensure drug quality and medication safety. Automatic packaging production lines have become the standard configuration for major pharmaceutical companies due to their high efficiency, precision, and hygiene. In a typical automated process, medicine boxes need to go through multiple consecutive processes such as forming, positioning, filling, sealing, and labeling. Among them, the precise positioning of the medicine box is the basis of the entire automated production process, and its accuracy directly affects the success or failure of all subsequent processes, especially for processes such as filling and sealing that require extremely high position accuracy. In recent years, with the increasing demand for diversified and personalized drug packaging, the application of various "non-standard medicine boxes" has become increasingly widespread. These medicine boxes may have certain fluctuations in size consistency due to limitations in special designs, materials, or manufacturing processes, posing more stringent challenges to the positioning link in the automated production line.

[0003] Currently, in automatic packaging production lines, for the positioning of box-shaped objects, relatively conventional mechanical positioning methods are generally adopted. A common technique is to use preset station grooves or fixtures on rotary or chain-type conveyors. The medicine box is placed in these grooves customized for its outer contour, and its position is restricted by the four walls of the groove. Another method is to set adjustable rigid baffles or lateral clamping cylinders on both sides of a straight conveyor belt. When the medicine box is conveyed to the designated station, it is pushed against a fixed reference edge by lateral thrust to complete the positioning. The principles of these methods are all based on physical constraints on the overall shape of the medicine box, relying on the medicine box itself having good and consistent dimensions and shapes.

[0004] However, the positioning methods relying on constraining the outer contour of the medicine box in the prior art have exposed their inherent limitations when dealing with non-standard medicine boxes with dimensional tolerances. Due to possible slight dimensional differences or deformations in the production of non-standard medicine boxes, using uniformly sized station grooves or fixed baffles for positioning cannot effectively eliminate the positional errors caused by these individual differences. Specifically, although the overall medicine box is roughly limited to the station, the center position of its key filling opening often has unforeseen small deviations relative to the center point of the actuator (such as a filling nozzle) of the subsequent station. This uncertainty in positioning directly leads to the filling nozzle being unable to accurately align with the medicine box opening, easily causing problems such as liquid splashing, inaccurate filling volume, and contamination of the medicine box outer wall, not only resulting in waste of materials but also seriously affecting the product qualification rate and the overall efficiency of the production line. Therefore, an automatic alignment device for non-standard medicine boxes is proposed to solve the above problems. Content of the Utility Model

[0005] To overcome the above shortcomings, this utility model provides an automatic positioning device for non-standard medicine boxes. It aims to improve upon existing positioning methods that rely on the outer contour of the medicine box. However, due to the dimensional tolerances of non-standard medicine boxes, positioning is often inaccurate, preventing the medicine box opening from precisely aligning with subsequent workstations. This easily leads to material spillage and waste, affecting product qualification rates and production efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic positioning device for non-standard medicine boxes, comprising: a body;

[0007] A turntable is rotatably mounted on the machine body, and a limiting mechanism for holding medicine boxes is provided on its upper side; and a calibration mechanism is provided above the movement path of the turntable;

[0008] The proofreading organizations include:

[0009] At least one bracket and a mounting plate fixed to the bracket;

[0010] A horizontal plate is fixed to the upper surface of the mounting plate;

[0011] The motor is mounted on the horizontal plate, and its output end is connected to a synchronous pulley.

[0012] A lead screw is rotatably mounted on the horizontal plate, and one end of which is fixedly connected to a second synchronous pulley that is in transmission cooperation with the first synchronous pulley.

[0013] The slide rail is fixed to the mounting plate;

[0014] The slider is slidably connected to the slide rail;

[0015] A connecting block is threadedly connected to the outer wall of the lead screw;

[0016] A fixed plate, one end of which is fixedly connected to the connecting block and the other end of which is fixedly connected to the slider; and two symmetrically arranged fixed blocks, which are fixed to the fixed plate. Each fixed block is slidably connected to a limit rod, and the lower end of the limit rod is fixed with a conical head.

[0017] As a further description of the above technical solution:

[0018] The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt drive.

[0019] As a further description of the above technical solution:

[0020] The calibration mechanism includes two brackets, and the mounting plate is fixedly connected between the two brackets.

[0021] As a further description of the above technical solution:

[0022] The two fixing blocks are symmetrically arranged on the side of the fixing plate facing the turntable.

[0023] As a further description of the above technical solution:

[0024] A spring is fitted on the outer wall of the limiting rod, and the two ends of the spring abut against the inner wall of the fixing block and the upper surface of the conical head, respectively.

[0025] As a further description of the above technical solution:

[0026] The conical surface of the conical head is used to contact the open sidewall of the medicine box to guide and correct the medicine box.

[0027] As a further description of the above technical solution:

[0028] The upper surface of the turntable is also provided with a filling mechanism and an unlocking mechanism in sequence along its circumference.

[0029] As a further description of the above technical solution:

[0030] The positions of the calibration mechanism, filling mechanism, and unlocking mechanism correspond to the positions of the limiting mechanism when the turntable rotates to the corresponding workstation.

[0031] This utility model has the following beneficial effects:

[0032] 1. In this utility model, by setting up a calibration mechanism, the position of the medicine box can be accurately calibrated before it enters the next process. When the turntable moves the medicine box below the calibration mechanism, the motor drives the lead screw to rotate, causing the limiting rod with a conical head to descend. The two symmetrical conical heads use their conical surface structure to guide and center the opening of the medicine box, automatically correcting any minor positional deviations that may exist in the limiting mechanism. The spring on the outer wall of the limiting rod provides flexible cushioning, avoiding damage to the medicine box from rigid impacts, ensuring the accuracy of calibration and the protection of the medicine box. This solves the problem of inaccurate positioning caused by non-standard medicine boxes with varying sizes, significantly improving the alignment accuracy and product qualification rate of subsequent filling processes.

[0033] 2. In this utility model, the calibration mechanism adopts a combination of a motor, synchronous pulley, lead screw, and slide rail slider, accurately converting the rotational motion of the motor into the vertical linear motion of the calibration components. The operation is stable, the positioning is precise, and the degree of automation is high. This system integrates clamping, calibration, filling, and unlocking functions onto a turntable, realizing a streamlined automated operation process, effectively reducing manual intervention and labor intensity. Its compact structure and smooth operation not only improve production efficiency but also provide good adaptability and versatility for different specifications of medicine boxes, making it highly practical. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural diagram of an automatic alignment device for non-standard medicine boxes proposed in this utility model;

[0035] Figure 2 This is a schematic diagram of the limiting mechanism of an automatic positioning device for non-standard medicine boxes proposed in this utility model;

[0036] Figure 3 This is a schematic diagram of the calibration mechanism of an automatic calibration device for non-standard medicine boxes proposed in this utility model;

[0037] Figure 4 This is a schematic diagram of the support structure of an automatic alignment device for non-standard medicine boxes proposed in this utility model.

[0038] Legend:

[0039] 1. Machine body; 2. Turntable; 3. Limiting mechanism; 4. Calibration mechanism; 401. Bracket; 402. Mounting plate; 403. Horizontal plate; 404. Motor; 405. Synchronous pulley one; 406. Synchronous pulley two; 407. Slide rail; 408. Slider; 409. Connecting block; 410. Fixing plate; 411. Fixing block; 412. Limiting rod; 413. Conical head; 414. Spring; 415. Lead screw; 5. Filling mechanism; 6. Unlocking mechanism. Detailed Implementation

[0040] 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.

[0041] Reference Figure 1 - Figure 4This utility model provides an embodiment of an automatic alignment device for non-standard medicine boxes, comprising: a body 1, which serves as the supporting foundation for the entire device and provides a stable mounting platform for each moving component; a turntable 2, rotatably mounted on the body 1 for conveying medicine boxes between different workstations, with a limiting mechanism 3 on its upper side for initially clamping and fixing the medicine boxes; and an alignment mechanism 4, positioned above the movement path of the turntable 2 for precisely positioning the medicine boxes before subsequent processes; the alignment mechanism 4 includes: at least one bracket 401 for supporting the entire structure of the alignment mechanism 4, and a mounting plate 402 fixed to the bracket 401, which serves as a connecting base plate; a horizontal plate 403 fixed to the upper surface of the mounting plate 402 for mounting driving components; a motor 404 mounted on the horizontal plate 403 as the power source for the entire alignment action, with a synchronous pulley 405 connected to its output end for outputting rotational power; and a lead screw 415 rotatably mounted on the body 1. Mounted on the horizontal plate 403, it converts rotary motion into precise linear motion. One end is fixedly connected to a second synchronous pulley 406, which engages with the first synchronous pulley 405, to receive power from the motor 404. A slide rail 407, fixed to the mounting plate 402, provides precise guidance for the linear motion of the calibration assembly. A slider 408 is slidably connected to the slide rail 407, ensuring smooth movement of the moving parts along a predetermined trajectory. A connecting block 409 is threaded to the outer wall of the lead screw 415, serving as a... The lead screw 415 is an actuator that converts rotation into linear displacement; the fixed plate 410 has one end fixedly connected to the connecting block 409 and the other end fixedly connected to the slider 408, forming an integral movable platform; and two symmetrically arranged fixed blocks 411 are fixed on the fixed plate 410. Each fixed block 411 has a limit rod 412 slidably connected inside, and the lower end of the limit rod 412 is fixed with a conical head 413 for contacting the medicine box and performing the final alignment action.

[0042] Specifically, when the motor 404 starts, its rotational motion is precisely transmitted to the lead screw 415 through a synchronous transmission system consisting of synchronous pulley 405, synchronous belt, and synchronous pulley 406, driving its rotation. Since the connecting block 409 is threadedly connected to the lead screw 415, and the fixed plate 410 connected to it is constrained to the slide rail 407 via the slider 408, the rotation of the lead screw 415 is converted into a stable, wobbly, vertical linear motion of the entire fixed plate 410 assembly. This linear motion causes the limiting rod 412 and the lower conical head 413 within the fixed block 411 to descend. The conical surface structure of the two symmetrical conical heads 413 guides and centers the opening of the medicine box, thereby actively correcting any minor positional deviations that may exist in the limiting mechanism 3. This design precisely converts rotational drive into linear positioning action, using the medicine box opening as a reference for positioning, effectively overcoming the positioning difficulties caused by varying medicine box dimensions and ensuring the accuracy of subsequent processes.

[0043] Reference Figure 1 - Figure 4 Synchronous pulley 405 and synchronous pulley 406 are connected by a synchronous belt drive. This synchronous belt drive method ensures transmission accuracy and eliminates slippage error, ensuring that the rotation angle of motor 404 is accurately transmitted to lead screw 415. The calibration mechanism 4 includes two supports 401, with a mounting plate 402 fixedly connected between them. This structure forms a stable gantry frame, providing high-rigidity support for the movement of the calibration components and ensuring the stability of the positioning process. Two fixing blocks 411 are symmetrically arranged on the side of fixing plate 410 facing turntable 2. This symmetrical layout ensures that the force applied to the medicine box by the two conical heads 413 is uniform during calibration. The balance ensures precise centering and alignment. A spring 414 is fitted on the outer wall of the limiting rod 412, with its two ends abutting against the inner wall of the fixing block 411 and the upper surface of the conical head 413, respectively. The spring 414 acts as a buffer and provides flexible pressure, preventing damage to the medicine box from rigid contact and accommodating the height tolerance of the medicine box. The conical surface of the conical head 413 is used to contact the opening side wall of the medicine box for guiding and correcting the medicine box, which is the core functional component for achieving alignment. A filling mechanism 5 and an unlocking mechanism 6 are also sequentially arranged along the circumference of the upper surface of the turntable 2, thus forming a complete automated operation process. The positions of the filling mechanism 5 and the unlocking mechanism 6 correspond to the positions of the limiting mechanism 3 when the turntable 2 rotates to the corresponding work position, ensuring precise connection between each process.

[0044] Specifically, precise control of the alignment action is ensured by synchronous belt drive. The stable structure formed by the two supports 401 provides a foundation for accurate alignment. After the medicine box is brought to the alignment station by the turntable 2, the two symmetrical conical heads 413 descend into the opening of the medicine box. Their conical structure can automatically guide and center the medicine box, directly using the functional opening as a reference for positioning, rather than relying on the imprecise outer contour. The presence of the spring 414 makes this process flexible, effectively protecting the medicine box. After alignment is completed, the turntable 2 continues to rotate, and the precisely positioned medicine box will sequentially reach the stations of the filling mechanism 5 and the unlocking mechanism 6. Since each station corresponds precisely to the stopping position of the turntable 2, the accuracy of subsequent operations such as filling and unlocking is guaranteed.

[0045] Working principle: When the device is needed, the non-standard medicine box is first placed on the limiting mechanism 3 on the upper side of the turntable 2 for initial fixation. Then, the turntable 2 rotates, transporting the limiting mechanism 3 holding the medicine box to directly below the calibration mechanism 4. At this time, the calibration mechanism 4 starts, and the motor 404 on its horizontal plate 403 starts working, driving the synchronous pulley 406 to rotate through the synchronous pulley 405 and the synchronous belt, which in turn drives the lead screw 415 to rotate. Since the connecting block 409 is threadedly engaged with the lead screw 415, and the fixed plate 410 connected to it is restricted to vertical movement on the slide rail 407 by the slider 408, the rotation of the lead screw 415 will drive the connecting block 409 and the entire fixed plate 410 assembly to move vertically downward. As the fixed plate 410 descends, the limiting rods 412 in the two fixed blocks 411 fixed on it and the conical head 413 at the lower end also descend, until the conical surface of the conical head 413 extends into the opening of the medicine box. Using the guiding effect of the conical surface, two symmetrical conical heads 413 squeeze and fine-tune the medicine box, forcing it to move to a precise center position symmetrical about the center line of the two conical heads. After calibration, the motor 404 reverses, driving the entire calibration component to lift and reset, and the turntable 2 continues to rotate, sending the precisely positioned medicine box to the next station for subsequent operations such as filling.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is 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. An automatic positioning device for non-standard medicine boxes, characterized in that, include: Body (1); A turntable (2) is rotatably mounted on the machine body (1), and a limiting mechanism (3) for holding medicine boxes is provided on its upper side; and a calibration mechanism (4) is provided above the movement path of the turntable (2); The proofreading agency (4) includes: At least one bracket (401) and a mounting plate (402) fixed to the bracket (401); A horizontal plate (403) is fixed to the upper surface of the mounting plate (402); The motor (404) is mounted on the horizontal plate (403), and its output end is connected to a synchronous pulley (405); The lead screw (415) is rotatably mounted on the cross plate (403), and one end of it is fixedly connected to the synchronous pulley (406) which is in transmission cooperation with the synchronous pulley (405); The slide rail (407) is fixed to the mounting plate (402); The slider (408) is slidably connected to the slide rail (407); The connecting block (409) is threaded to the outer wall of the lead screw (415); A fixing plate (410) is fixedly connected at one end to the connecting block (409) and at the other end to the slider (408); and two symmetrically arranged fixing blocks (411) are fixed on the fixing plate (410). Each fixing block (411) is slidably connected to a limit rod (412), and a tapered head (413) is fixed at the lower end of the limit rod (412).

2. The automatic positioning device for non-standard medicine boxes according to claim 1, characterized in that: The first synchronous pulley (405) and the second synchronous pulley (406) are connected by a synchronous belt drive.

3. The automatic positioning device for non-standard medicine boxes according to claim 1, characterized in that: The calibration mechanism (4) includes two brackets (401), and the mounting plate (402) is fixedly connected between the two brackets (401).

4. The automatic positioning device for non-standard medicine boxes according to claim 1, characterized in that: The two fixing blocks (411) are symmetrically arranged on the side of the fixing plate (410) facing the turntable (2).

5. The automatic positioning device for non-standard medicine boxes according to claim 4, characterized in that: A spring (414) is sleeved on the outer wall of the limiting rod (412), and the two ends of the spring (414) abut against the inner wall of the fixing block (411) and the upper surface of the conical head (413), respectively.

6. The automatic positioning device for non-standard medicine boxes according to claim 1, characterized in that: The conical surface of the conical head (413) is used to contact the open sidewall of the medicine box to guide and correct the medicine box.

7. The automatic positioning device for non-standard medicine boxes according to claim 1, characterized in that: The upper surface of the turntable (2) is also provided with a filling mechanism (5) and an unlocking mechanism (6) in sequence along its circumference.

8. The automatic positioning device for non-standard medicine boxes according to claim 7, characterized in that: The positions of the calibration mechanism (4), filling mechanism (5) and unlocking mechanism (6) correspond to the positions of the limiting mechanism (3) when the turntable (2) rotates to the corresponding work station.

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