A syringe medicine bottle neck cutting device

Abstract

The utility model discloses a needle injection medicine bottle neck cutting device relates to medicine bottle opening equipment technical field, solves the problem of poor adaptability of cutting device in prior art to different specifications or manufacturing error's bottle neck cutting. The utility model discloses a support, is provided with rotary drive unit on the support, and rotary drive unit is used for driving the rotation of opening and closing mechanism with opening and closing mechanism cooperation, and the opening and closing end of opening and closing mechanism is provided with floating support mechanism, and floating support mechanism is connected with cutting piece. Floating support mechanism can provide floating support basis for cutting piece, thereby can make cutting piece adaptively adhere to the outer wall of the bottle neck of different specifications or different manufacturing error conditions under the control of opening and closing mechanism, guarantee the effective contact and cutting of cutting piece and bottle neck, solve the problem of poor adaptability of the existing device, improve the versatility, can drive cutting piece and rotate cutting along the bottle neck through the setting rotary drive unit, thereby cutting out the scratch at the bottle neck.

Description

Technical Field

[0001] This utility model relates to the field of medicine bottle opening equipment, and in particular to a neck cutting device for injectable drugs. Background Technology

[0002] In the medical field, injectable medications are widely used, and ampoules, as a common packaging material for injectable drugs, require frequent cutting of the neck to extract the medication during actual drug production and use. Ampoules come in various sizes, and due to manufacturing processes, ampoules of the same size may have variations in the outer diameter, curvature, or height of the neck, resulting in some degree of variation. While existing cutting devices offer some cutting capability, they have significant limitations, particularly when cutting necks of different sizes or with manufacturing errors, exhibiting poor adaptability.

[0003] Currently, most cutting devices on the market have fixed positions and support methods for their cutting components, making it impossible to flexibly adjust them according to the actual size and shape of the bottleneck. For example, some devices have fixed cutting blade positions, which may result in ineffective cutting when cutting smaller bottlenecks due to insufficient contact area between the blade and the bottleneck; while when dealing with larger bottlenecks or those with manufacturing errors, uneven or rough cutting may occur, or even the bottleneck may break, affecting the normal use of the medicine.

[0004] Chinese invention patent CN112357862A discloses a neck cutter for use with ampoules. It primarily provides a machine-based method for cutting ampoules, facilitating use, directly collecting and crushing the neck, and preventing unnecessary infection. The neck cutter includes a rotating mechanism with a cleaning mechanism connected to its top. The rotating mechanism drives the ampoule to rotate, facilitating neck cutting; the cleaning and collection mechanisms collect the cut neck and then crush it, preventing injury to others and potential infection; and a high-speed cutting blade eliminates the need for manual prying, reducing workload.

[0005] In this proposed solution, a fixed-position cutter is used to rotate the ampoule to achieve contact. The cutter's blade needs to cut through the neck of the ampoule, and the high-speed cutting generates more debris. This poses a risk of glass shards from the inside of the neck falling into the ampoule and causing contamination. Therefore, based on practical demonstration, simulating the manual opening of the ampoule by first making a scratch on the neck and then breaking it off, is the optimal solution.

[0006] Existing cutting devices, due to their mostly rigid structures, suffer from poor adaptability to bottlenecks of different specifications or manufacturing errors when performing scratching operations. This seriously affects the versatility and practicality of the cutting devices and limits their widespread application in the pharmaceutical field. There is an urgent need for a cutting device that can better adapt to different bottleneck specifications and manufacturing errors to solve the above problems. Utility Model Content

[0007] To address the shortcomings in the aforementioned background technology, this utility model proposes a bottleneck cutting device for injectable drugs, which solves the problem of poor adaptability of existing cutting devices to bottleneck cutting of different specifications or manufacturing errors.

[0008] The technical solution of this utility model is implemented as follows: a bottleneck cutting device for injectable drugs includes a support, on which a rotary drive unit is provided. The rotary drive unit cooperates with an opening and closing mechanism and is used to drive the opening and closing mechanism to rotate. A floating support mechanism is provided at the opening and closing end of the opening and closing mechanism, and the floating support mechanism is connected to the cutting part.

[0009] Preferably, the floating support mechanism includes a floating block, a support shell at the opening / closing end of the opening / closing mechanism, the floating block being disposed within the support shell, and the floating block being able to slide horizontally relative to the opening / closing direction of the opening / closing mechanism. A spring is disposed between the outer side of the floating block and the support shell. A blade holder capable of vertical sliding is disposed on the floating block, and a cutting element is disposed at the lower end of the blade holder.

[0010] Preferably, the support shell is threaded with a knob, the end of which engages with a spring, and the support shell is provided with a set screw that engages with the knob.

[0011] Preferably, the floating support mechanism includes an elastic support rod fixedly disposed at the opening and closing end of the opening and closing mechanism, and a collar that can slide along the elastic support rod is provided on the elastic support rod, and the cutting element is fixedly disposed on the collar.

[0012] Preferably, the floating support mechanism includes a telescopic support rod fixedly disposed at the opening and closing end of the opening and closing mechanism, and the cutting element is fixedly disposed on the telescopic support rod.

[0013] Preferably, the cutting element is a grinding wheel. The rotary drive unit is a drive motor or a swing cylinder fixedly mounted on the support; the opening and closing mechanism is an opening and closing cylinder or an electric opening and closing cylinder fixedly mounted on the rotating end of the drive motor or the swing cylinder.

[0014] Preferably, the support includes legs, each with a mounting base, and the rotary drive unit is fixedly mounted on the mounting base. A cantilever is connected to the mounting base, and wiping blocks are symmetrically arranged on the cantilever.

[0015] The beneficial effects of this utility model are: The floating support mechanism can provide a floating support base for the cutting part, so that under the control of the opening and closing mechanism, the cutting part can adapt to the outer wall of the bottleneck with different specifications or manufacturing errors in a floating form, ensuring effective contact between the cutting part and the bottleneck and realizing cutting, solving the problem of poor adaptability of existing devices and improving versatility.

[0016] By incorporating a rotary drive unit, the cutting element can be driven to rotate and cut along the bottleneck, thus creating scratches. A floating support mechanism, in conjunction with an opening and closing mechanism, can adjust the cutting force and position according to the size and shape of the bottleneck, achieving a uniform and smooth cut, preventing bottleneck breakage, reducing glass fragments, minimizing contamination risks, and protecting the safety of operators and pharmaceuticals. This device can adapt to various bottleneck sizes and those with manufacturing errors, eliminating the need for component replacement, reducing operating costs, and expanding its applicability. Attached Figure Description

[0017] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the rotary drive unit and opening / closing mechanism of this utility model; Figure 3 This is a schematic cross-sectional view of the first type of floating support mechanism of this utility model; Figure 4 This is an exploded view of the first type of floating support mechanism of this utility model; Figure 5 This is a perspective structural diagram of the first type of floating support mechanism of this utility model; Figure 6 This is a schematic diagram of the second type of floating support mechanism of this utility model; Figure 7 This is a schematic diagram of the third type of floating support mechanism of this utility model; Figure 8 This is a schematic diagram showing the state of the wiping block when it is installed in this utility model; In the diagram: 1: Support, 2: Rotary drive unit, 3: Opening and closing mechanism, 4: Floating support mechanism, 5: Cutting component, 41: Floating block, 42: Support shell, 43: Spring, 44: Tool holder, 45: Knob, 46: Set screw, 47: Elastic support rod, 48: Collar, 49: Telescopic support rod, 11: Support leg, 12: Mounting base, 13: Cantilever, 14: Wiping block, 491: Sleeve, 492: Inner sleeve rod, 493: Floating spring Detailed Implementation

[0019] 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.

[0020] Example 1: A neck-cutting device for injectable drugs, such as... Figure 1 , 2 As shown in Figure 3, the device includes a support 1, on which a rotary drive unit 2 is mounted. The rotary drive unit 2 cooperates with the opening and closing mechanism 3 and drives the opening and closing mechanism 3 to rotate. A floating support mechanism 4 is provided at the opening and closing end of the opening and closing mechanism 3, and the floating support mechanism 4 is connected to the cutting piece 5. In this embodiment, the rotary drive unit 2 drives the opening and closing mechanism 3 to rotate, enabling the cutting piece 5 to rotate and cut around the bottleneck, thereby creating scratches at the bottleneck and meeting the bottleneck cutting requirements. The floating support mechanism provides a floating support base for the cutting piece 5, allowing it to adaptably fit the outer wall of the bottleneck with different specifications or manufacturing errors under the control of the opening and closing mechanism 3, ensuring effective contact and cutting between the cutting piece 5 and the bottleneck, and improving versatility and applicability.

[0021] Specifically, in this embodiment, the cutting component 5 uses a high-hardness grinding wheel. The grinding wheel slides against the outer wall of the bottle neck, creating scratches. Finally, the bottle neck is broken off from the bottle neck manually or mechanically for extraction of the medicine. During the process of bringing the grinding wheel into contact with the bottle neck, the position of the opening and closing mechanism is adjusted according to the bottle size, ensuring the cutting component fits snugly against the neck and applying a certain preload. At this point, the floating support mechanism provides a certain degree of floating buffer support, preventing excessive preload from directly pressing on the bottle neck and causing breakage. Additionally, it ensures the cutting blade fits at the smallest radius within the concave area of ​​the bottle neck, improving cutting stability. Driven by the opening and closing mechanism, the floating support mechanism adapts to the bottle neck size and shape, adjusting the cutting force and position of the cutting component to achieve a uniform and flat cut, preventing bottle neck breakage, reducing glass fragments, lowering the risk of contamination, and protecting the safety of operators and medicines. This device can adapt to various bottle sizes and those with manufacturing errors without requiring additional adjustments or replacements, reducing operating costs and expanding its applicability. The support, rotary drive unit, and opening / closing mechanism work together to make the device compact, easy to install and maintain, and further optimize performance.

[0022] Example 2, based on Example 1, such as Figure 4 , 5As shown, the floating support mechanism 4 includes a floating block 41. The opening and closing end of the opening and closing mechanism 3 is provided with a support shell 42. The floating block 41 is movably disposed within the support shell 42, which provides a supporting connection base for the floating block 41. A spring 43 is provided between the outer side of the floating block 41 and the support shell 42, allowing the floating block 41 to move horizontally relative to the opening and closing direction of the opening and closing mechanism 3, thus enabling the floating block to float in the horizontal direction. Additionally, the floating block 41 is provided with a vertically sliding blade holder 44. The cutting component 5 is disposed at the lower end of the blade holder 44. Through the sliding connection between the blade holder and the floating block, vertical floating support is achieved for the cutting component, allowing it to adaptively cooperate with the bottleneck in the vertical direction.

[0023] Specifically, in this embodiment, the floating block 41 has protrusions on both sides, and the support shell 42 has horizontally symmetrically arranged sliding tracks that cooperate with the protrusions, thereby guiding the floating block to slide. The floating block has an opening, and a tool holder passes through the opening. Both ends of the tool holder have anti-detachment caps to prevent it from slipping out of the opening during vertical sliding. The cutting piece 5 is bolted to the lower end of the tool holder. Thus, vertical floating is achieved by sliding the tool holder within the opening. Alternatively, as a first option, a key and keyway are provided between the tool holder and the opening, thereby limiting rotation and preventing relative rotation between the tool holder and the opening, thus preventing the cutting piece from rotating and affecting the cutting effect. As a second option, a flat cutting surface is provided on the tool holder, and a flat surface is provided on the inner wall of the opening, using the flat cutting surface and the flat surface to limit the rotation of the tool holder.

[0024] During the process of bringing the grinding wheel into contact with the bottle neck, the position of the opening and closing end of the opening and closing mechanism is adjusted according to the bottle neck size to ensure the cutting part fits the bottle neck. A certain preload is applied in conjunction with spring 43. When the cutting part 5 contacts the bottle neck, the floating block 41 can float horizontally. Spring 43 provides a certain buffering effect on the floating block in the radial direction, preventing excessive preload from causing the cutting part to directly press against the bottle neck and break. The preload applied to the cutting part maintains the contact strength between the cutting part and the bottle neck. Furthermore, thanks to the floating connection of the blade holder 44, which can slide vertically, the cutting part 5 can move along the curvature of the bottle neck to the point of minimum radius when it fits against the bottle neck. This allows for better contact with the outer wall of the bottle neck, limiting the cutting path, maintaining cutting stability, adapting to bottles of different specifications and shapes, improving cutting effect and adaptability, and effectively solving the problem of poor adaptability in existing devices.

[0025] As a further specific implementation, to achieve adjustment of the spring preload, a knob 45 is threadedly connected to the support shell 42, and the end of the knob 45 engages with the spring 43. When it is necessary to adjust the spring force, the knob is rotated, and the end of the knob moves along its own axial direction, thereby compressing or relaxing the spring, thus changing the spring's preload on the floating block and adjusting the cutting force of the cutting component connected to the floating block on the bottleneck. Furthermore, to prevent the knob from loosening and causing changes in the preload during long-term use after adjusting the preload, in this embodiment, a set screw 46 is provided on the support shell 42 to engage with the knob 45, and the end of the set screw abuts against the knob, thereby limiting the position of the knob after adjustment.

[0026] Example 3, based on Example 1, such as Figure 6 As shown, unlike Embodiment 2, the floating support mechanism 4 includes an elastic support rod 47 fixedly mounted on the opening / closing end of the opening / closing mechanism 3. A collar 48, capable of sliding along the elastic support rod 47, is provided on the elastic support rod 47, and the cutting element 5 is fixedly mounted on the collar 48. In this embodiment, the elastic support rod can be made of rubber, allowing the elastic support rod 47 to undergo elastic deformation. This provides a certain degree of elastic buffering when the cutting element 5 contacts the bottle neck, achieving the floating purpose and preventing the medicine bottle from breaking due to rigid contact.

[0027] In addition, a gap is left between the collar and the elastic support rod to better achieve sliding. The collar is provided with a keyway, and the elastic support rod is a splined shaft. The circumferential spline of the splined shaft and the keyway cooperate to achieve sliding guidance and prevent the collar from rotating. This prevents the cutting part from rotating relative to the elastic support rod during the rotation driven by the rotary drive unit. In addition, a limiting block is provided on the elastic support rod to limit the sliding range of the collar and limit the floating range of the cutting part. By sliding the collar 48 along the elastic support rod 47, the cutting part 5 is provided with a certain range of position adjustment capability in the axial direction of the elastic support rod, so that it can adapt to different bottleneck sizes and curvature shapes. When the cutting part contacts the bottleneck, it tends to move towards the minimum bottleneck point. When rotating and cutting at the minimum bottleneck point, the path is more stable, achieving better fit and cutting. Compared with embodiment 2, the structure is different, but it can achieve the same better adaptability.

[0028] Example 4, based on Example 1, such as Figure 7As shown, unlike embodiments 2 and 3, the floating support mechanism of this application can float in the axial direction. The floating support mechanism 4 includes a telescopic support rod 49 fixedly mounted on the opening and closing end of the opening and closing mechanism 3, and the cutting element 5 is fixedly mounted on the telescopic support rod 49. In this embodiment, the telescopic support rod 49 is a two-section telescopic rod. The opening and closing mechanism drives the cutting element to press against the neck of the medicine bottle. When the cutting element 5 contacts the neck, it can move along the neck to the area with the smallest radius under the guidance of the neck's curvature. At this time, the telescopic support rod extends and retracts with the movement of the cutting element and provides support. This adapts to different specifications of necks, increases the flexibility and adaptability of the device, and is more advantageous when cutting necks of different sizes.

[0029] Furthermore, to determine the initial position of the telescopic support rod, the two-section telescopic rod includes two slidingly inserted sleeves 491 and an inner sleeve rod 492. The inner end of the inner sleeve rod 492 is fixedly connected to a floating spring 493, which is located inside the sleeve 491. The other end of the floating spring 493 is connected and fixed to a baffle at the end of the sleeve 491. The cutting piece 5 is fixedly installed outside the sleeve 491. The upper part of the inner sleeve rod is fixedly connected to the opening and closing end of the opening and closing mechanism. The floating spring ensures that the overall length of the telescopic support rod 49 is stable before contacting the bottleneck. During the contact with the bottleneck and continuous pressure application, the cutting piece slides along the bottleneck surface to the minimum radius, achieving a stable fit. At this time, the inner sleeve rod moves relative to the sleeve, compressing or stretching the floating spring. After cutting, the cutting piece returns to its initial position under the reset force of the floating spring.

[0030] In Example 5, based on the above examples, the rotary drive unit 2 is a drive motor or a swing cylinder fixedly mounted on the support 1; the opening and closing mechanism 3 is an opening and closing cylinder or an electric opening and closing cylinder fixedly mounted on the rotating end of the drive motor or the swing cylinder. Opening and closing cylinders or electric opening and closing cylinders are common power and opening / closing components, operating stably and easy to install and maintain. In this example, a drive motor is used to drive the rotation of the opening and closing mechanism. When the rotary drive unit uses a pneumatic swing cylinder, the opening and closing mechanism uses the opening and closing cylinder as the power output, both connected to an air circuit controller. The air circuit controller is connected to an air pump, which provides the power source. The air circuit controller controls the direction distribution and opening / closing control of the air circuit. In actual use, by controlling the air supply direction to the swing cylinder, the swing cylinder can reciprocate to achieve the cutting action. By controlling the air supply to the opening and closing cylinder, the opening and closing action can be achieved.

[0031] Additionally, the support 1 includes a leg 11, on which a mounting base 12 is provided, and the rotary drive unit 2 is fixedly mounted on the mounting base 12. In this embodiment, the leg is an adjustable telescopic leg, with a foot at the lower end for easy connection with other equipment components or wall bolts, and the upper end connected to the mounting base.

[0032] In this embodiment, the device can be selected as part of a conventional automated injectable drug solution extraction device, and can be used to replace the ampoule neck cutting component in a hospital ampoule drug dispensing machine disclosed in Chinese Utility Model Patent No. CN221797014U, or the cap opening component in a drug dispensing device that is easy to maintain disclosed in Chinese Utility Model Patent No. CN222517314U.

[0033] The existing equipment or wall surface has a receiving slot for holding injectable medicine bottles. When the neck of the bottle needs to be cut, the bottle is placed in the receiving slot, which can limit the position of the bottle and avoid excessive changes in the cutting position each time, thus affecting the cutting effect.

[0034] As a further alternative, for existing equipment with a medicine bottle conveying mechanism, the receiving tank is set on a conventional conveying mechanism, which can be a disc conveying mechanism, such as... Figure 8 As shown, a cantilever 13 is connected to the mounting base 12, and two symmetrical wiping blocks 14 are arranged on the cantilever 13. The wiping blocks 14 can be made of rubber or sponge. The cantilever provides support for the installation of the wiping blocks. In the initial state, the opening and closing mechanism is in an expanded state. When the medicine bottle is transported by the conveying mechanism to the position corresponding to the symmetrical center of the opening and closing mechanism, it stops. The neck of the medicine bottle enters the symmetrical center position of the two cutting parts, and the opening and closing mechanism closes. At the same time, under the floating support of the floating support mechanism, the cutting parts adhere to the outer wall of the neck. After cutting driven by the rotary drive unit, the opening and closing mechanism expands, and continues to move under the drive of the conveying mechanism. When passing through the gap between the two wiping blocks, the wiping blocks can wipe the scratched neck of the bottle, reducing the residue of glass shards and reducing the amount of glass fragments falling into the medicine bottle when it is broken open.

[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 device for cutting the neck of an injectable drug, comprising a support (1), characterized in that: The support (1) is provided with a rotary drive unit (2), which cooperates with the opening and closing mechanism (3) and is used to drive the opening and closing mechanism (3) to rotate; the opening and closing end of the opening and closing mechanism (3) is provided with a floating support mechanism (4), which is connected to the cutting part (5).

2. The syringe bottle neck cutting device according to claim 1, characterized in that: The floating support mechanism (4) includes a floating block (41), and the opening and closing end of the opening and closing mechanism (3) is provided with a support shell (42). The floating block (41) is located inside the support shell (42), and the floating block (41) can slide horizontally relative to the opening and closing direction of the opening and closing mechanism (3). A spring (43) is provided between the outer side of the floating block (41) and the support shell (42).

3. The syringe bottle neck cutting device according to claim 2, characterized in that: The floating block (41) is provided with a blade holder (44) that can slide vertically, and the cutting part (5) is located at the lower end of the blade holder (44).

4. The syringe bottle neck cutting device according to claim 3, characterized in that: A knob (45) is threaded onto the support shell (42), and the end of the knob (45) engages with a spring (43). A set screw (46) that engages with the knob (45) is provided on the support shell (42).

5. The syringe bottle neck cutting device according to claim 1, characterized in that: The floating support mechanism (4) includes an elastic support rod (47) fixedly installed at the opening and closing end of the opening and closing mechanism (3). The elastic support rod (47) is provided with a collar (48) that can slide along the elastic support rod (47). The cutting piece (5) is fixedly installed on the collar (48).

6. The syringe bottle neck cutting device according to claim 1, characterized in that: The floating support mechanism (4) includes a telescopic support rod (49) fixedly installed at the opening and closing end of the opening and closing mechanism (3), and a cutting piece (5) fixedly installed on the telescopic support rod (49).

7. The injectable drug neck cutting device according to any one of claims 2 to 5, characterized in that: The cutting component (5) is a grinding wheel.

8. The syringe bottle neck cutting device according to claim 1, characterized in that: The rotary drive unit (2) is a drive motor or swing cylinder fixedly mounted on the support (1); the opening and closing mechanism (3) is an opening and closing cylinder or electric opening and closing cylinder fixedly mounted on the rotating end of the drive motor or swing cylinder.

9. The injectable drug neck cutting device according to any one of claims 1 to 6 and 8, characterized in that: The support (1) includes a leg (11), and a mounting seat (12) is provided on the leg (11). The rotary drive unit (2) is fixedly installed on the mounting seat (12).

10. The syringe bottle neck cutting device according to claim 9, characterized in that: The mounting base (12) is connected to a cantilever (13), and wiping blocks (14) are symmetrically arranged on the cantilever (13).

Images