Medical glass tube cutting device with precise positioning function

By combining the adjustable lead screw and support wheel design with a laser cutter, the problem of inconvenient cutting of glass tubes of different sizes is solved, achieving stable clamping and precise cutting, thus improving processing efficiency and accuracy.

CN223991054UActive Publication Date: 2026-03-13HONGGUANG MEDICINE PACKAGING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

Existing glass tube cutting devices are difficult to adapt to medical glass tubes of different sizes, resulting in inconvenience in cutting.

Method used

The first lead screw is used to adjust the spacing of the adjustment bars. The glass tube is firmly clamped by the upper and lower sets of support wheels. The laser cutter and the motor-driven support wheels are combined to achieve precise rotation and 360° cutting of the glass tube. The position of the laser cutter can be adjusted to meet various specifications by using the linkage mechanism of the second lead screw, adjustment rod and telescopic rod.

Benefits of technology

It enables stable clamping and precise cutting of glass tubes of different sizes, improving processing efficiency and cutting accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a medicine glass tube cutting device with accurate positioning, which relates to the technical field of glass tube processing, and comprises a base, the inner side of the base is provided with adjusting strips which are symmetrically distributed, the inside of the base is fixedly connected with sliding rods which are distributed at equal intervals, and the tops of the adjusting strips are provided with supports which are distributed at equal intervals. The top of the adjusting strip is fixedly connected with a supporting wheel through a support, the supporting wheel is driven by a motor, open holes distributed at equal intervals are formed in the adjusting strip, the adjusting strip is slidably connected to the outer side of the sliding rod through the open holes, the middle of the base is rotationally connected with a first lead screw, and the directions of threads at the two ends of the first lead screw are opposite. According to the medical glass tube cutting device with the precise positioning function, the distance between the adjusting strips is adjusted through the first lead screw, glass tubes of different sizes can be adapted, the glass tubes are stably clamped through the upper supporting wheel and the lower supporting wheel, the stability of the glass tubes in the positioning and cutting process is ensured, and shaking or deviation is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of glass tube processing technology, specifically to a precision positioning medical glass tube cutting device. Background Technology

[0002] The medical glass tube cutting device is a specialized device for precisely cutting glass tubes used in the pharmaceutical industry. Existing glass tube cutting devices produce debris that is difficult to clean up.

[0003] To overcome the above-mentioned defects, a prior art Chinese patent (publication number: CN217600596U) discloses a borosilicate brown medical glass tube round-mouth cutting device, including a round-mouth machine body and a connecting plate. A glass tube is slidably connected to the surface of the round-mouth machine body. A support structure is provided on the surface of the round-mouth machine body. The support structure includes two U-shaped plates. The lower surfaces of the two U-shaped plates are fixedly connected to the round-mouth machine body. A sliding plate is slidably connected to the side of the two U-shaped plates near the round-mouth machine body. Several circular holes are evenly opened on the surface of the U-shaped plates. A round rod is slidably inserted into the inner wall of the circular holes on the surface of the U-shaped plates. An insertion hole is opened on the sliding plate relative to the two round rods. The inner wall size of the insertion hole on the surface of the sliding plate is adapted to the arc size of the round rod. A connecting rod is fixedly connected to the upper surface of the sliding plate. This solves the problem that after the blade cuts the glass tube, it will fall onto the surface of the round-mouth machine and easily break due to the fragility of the glass tube upon contact with the round-mouth machine.

[0004] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation: medical glass tubes with different functions have different sizes, and existing glass tube cutting devices are not convenient for cutting glass tubes of different sizes. Utility Model Content

[0005] The purpose of this invention is to provide a precise positioning medical glass tube cutting device to solve the problem in the background art that medical glass tubes with different functions have different sizes, and existing glass tube cutting devices are not convenient for cutting glass tubes of different sizes.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a precision positioning medical glass tube cutting device, including a base, wherein symmetrically distributed adjustment bars are installed on the inner side of the base, and equally spaced sliding rods are fixedly connected inside the base;

[0007] The top of the adjusting bar is equipped with equally spaced brackets, and the top of the adjusting bar is fixedly connected to a support wheel via the brackets. The support wheel is driven by a motor. The adjusting bar has equally spaced openings inside, and the adjusting bar is slidably connected to the outside of the sliding rod through the openings. The base is rotatably connected to a first lead screw in the middle, and the threads at both ends of the first lead screw are opposite in direction. The two ends of the first lead screw are threaded to the inside of the two adjusting bars.

[0008] Preferably, a limiting plate is fixedly connected to the top of one end of the base, and limiting plates are fixedly connected to both sides of the end of the base near the limiting plate, and the limiting plates are symmetrically distributed at the end of the base.

[0009] Preferably, a cover plate is fixedly connected to the top of the support rod, a rotating disk is rotatably connected inside the limiting disk, and a moving plate is slidably connected to the inner side of the two support rods.

[0010] Preferably, the bottom of the motion plate is slidably connected to two symmetrically distributed motion brackets via guide rails, and the bottom of the motion brackets is equipped with support wheels. A connecting rod is fixedly connected to one side of the motion bracket, and a pull ring is slidably connected to the outside of the connecting rod, and the pull ring is fixedly connected to the top of the adjusting bar.

[0011] Preferably, a pull ring is fixedly connected to the top of the motion plate, and the pull ring is slidably connected inside the cover plate, with the top of the pull ring extending to the top of the cover plate. Springs are fixedly connected between the top two sides of the motion plate and the cover plate, and the springs are located outside the support rod.

[0012] Preferably, the top two sides of the base are rotatably connected with symmetrically distributed second lead screws, and the end of the second lead screw away from the limiting plate is fixedly connected with a bevel tooth. The second lead screw is connected to a transmission rod through the bevel tooth, and an adjusting rod is installed between the two transmission rods. The transmission rod and the adjusting rod are connected to each other through the bevel tooth.

[0013] Preferably, the two second lead screws are threaded to the outside of an adjustment bracket, and a telescopic rod is fixedly connected to the top center of the adjustment bracket. The bottom ends of the adjustment bracket are slidably connected to the inside of the base. The telescopic end of the telescopic rod extends to the inside of the adjustment bracket, and a laser cutter is fixedly connected to the telescopic end of the telescopic rod.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This precision-positioning medical glass tube cutting device can adapt to glass tubes of different sizes by adjusting the spacing of the adjusting strips through the first lead screw. The upper and lower sets of support wheels firmly clamp the glass tube, ensuring the stability of the glass tube during positioning and cutting, and preventing shaking or displacement.

[0016] By combining the laser cutter with the motor-driven support wheels, the glass tube can be precisely rotated and laser-cut 360°, greatly improving processing efficiency. The linkage mechanism of the second lead screw, adjusting rod and telescopic rod can flexibly adjust the position of the laser cutter to ensure cutting accuracy and meet various specification requirements. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the base structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the motion plate structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the adjusting strip structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the rotating disk structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the second lead screw structure of this utility model.

[0023] In the diagram: 1. Base; 2. Adjusting bar; 3. Slide rod; 4. First lead screw; 5. Support wheel; 6. Limiting plate; 7. Support rod; 8. Cover plate; 9. Rotating plate; 10. Moving plate; 11. Moving bracket; 12. Pull ring; 13. Spring; 14. Second lead screw; 15. Transmission rod; 16. Adjusting rod; 17. Adjusting bracket; 18. Telescopic rod. Detailed Implementation

[0024] 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.

[0025] Example 1: Please refer to Figure 1 - Figure 6This utility model provides the following technical solution: a precision-positioning medical glass tube cutting device, comprising a base 1, symmetrically distributed adjusting strips 2 installed on the inner side of the base 1, and equidistantly distributed sliding rods 3 fixedly connected inside the base 1; equidistantly distributed brackets installed on the top of the adjusting strips 2, and support wheels 5 fixedly connected to the top of the adjusting strips 2 through the brackets, the support wheels 5 being driven by a motor; equidistantly distributed openings provided inside the adjusting strips 2, and the adjusting strips 2 being slidably connected to the outer side of the sliding rods 3 through the openings; a first lead screw 4 rotatably connected in the middle of the base 1, the threads at both ends of the first lead screw 4 having opposite directions, and the two ends of the first lead screw 4 being threadedly connected to the inside of two adjusting strips 2; a limiting plate 6 fixedly connected to the top of one end of the base 1, and limiting plates 6 fixedly connected to both sides of the end of the base 1 near the limiting plate 6. Furthermore, the limiting discs 6 are symmetrically distributed at the end of the base 1; the top of the support rod 7 is fixedly connected to the cover plate 8, and the inside of the limiting disc 6 is rotatably connected to the rotating disc 9, and the inner sides of the two support rods 7 are slidably connected to the moving plate 10; the bottom of the moving plate 10 is slidably connected to two symmetrically distributed moving brackets 11 via guide rails, and the bottom of the moving brackets 11 is equipped with support wheels 5, a connecting rod is fixedly connected to one side of the moving bracket 11, and a pull ring 12 is slidably connected to the outside of the connecting rod, and the pull ring 12 is fixedly connected to the top of the adjusting bar 2; the top of the moving plate 10 is fixedly connected to the pull ring 12, and the pull ring 12 is slidably connected to the inside of the cover plate 8, and the top of the pull ring 12 extends to the top of the cover plate 8; springs 13 are fixedly connected between the top two sides of the moving plate 10 and the cover plate 8, and the springs 13 are located outside the support rods 7.

[0026] The glass tube is placed horizontally on the support wheel 5 at the top of the base 1. The support wheel 5 is fixed by a bracket installed on the adjustment bar 2 and is driven by a motor to rotate. The support wheel 5 can support the glass tube and prevent it from sliding. The glass tube is moved along the direction of the support wheel 5 so that its end gradually approaches the moving plate 10. During the movement, it is ensured that the glass tube and the support wheel 5 remain in contact to avoid displacement.

[0027] Pulling the ring 12 upwards causes the moving plate 10 connected to the ring to rise simultaneously. The moving plate 10 then moves the moving support 11 at its bottom upwards as well. Another set of support wheels 5 are installed at the bottom of the moving support 11. As the moving support moves upwards, these support wheels gradually come into contact with the surface of the glass tube. When the glass tube moves to the rotating disk 9 and just touches it, the ring 12 is released. At this time, the spring 13 releases its elastic force, pushing the moving plate 10 downwards.

[0028] The downward movement of the motion plate 10 will press the support wheel 5 of the motion bracket 11 firmly against the surface of the glass tube, thereby clamping the glass tube. Under the combined action of the upper and lower support wheels 5, the glass tube is stably clamped. The upper support wheel 5 is installed at the bottom of the motion bracket 11 and its position is controlled by a pull ring and a spring. The lower support wheel 5 is located at the top of the adjustment bar 2. The position of the support wheel is adjusted by the adjustment bar to prevent the glass tube from shaking or shifting during subsequent processing.

[0029] If glass tubes of different sizes need to be processed, the spacing of the adjusting strips 2 can be adjusted by rotating the first lead screw 4. The threads at both ends of the first lead screw 4 are opposite. Rotating the lead screw will cause the adjusting strips 2 on both sides to slide inward or outward along the slide bar 3 simultaneously. The distance between the adjusting strips 2 can be precisely controlled to adapt to glass tubes of different diameters and facilitate quick changes in processing specifications.

[0030] Example 2: Based on Example 1, the following structure is also disclosed: Symmetrically distributed second lead screws 14 are rotatably connected to both sides of the top of the base 1, and a bevel tooth is fixedly connected to the end of the second lead screw 14 away from the limiting plate 6. A transmission rod 15 is connected to the second lead screw 14 through the bevel tooth, and an adjusting rod 16 is installed between the two transmission rods 15. The transmission rod 15 and the adjusting rod 16 are interconnected through the bevel tooth. An adjusting bracket 17 is threaded to the outer side of the two second lead screws 14, and a telescopic rod 18 is fixedly connected to the top center of the adjusting bracket 17. The bottom ends of the adjusting bracket 17 are slidably connected to the inside of the base 1. The telescopic end of the telescopic rod 18 extends to the inner side of the adjusting bracket 17, and a laser cutter is fixedly connected to the telescopic end of the telescopic rod 18.

[0031] The manual rotation of the adjusting rod 16 drives the transmission rod 15 to rotate via the bevel gear transmission mechanism. The transmission rod 15 is connected to the second lead screw 14. Rotating the transmission rod will cause the second lead screw to rotate synchronously. The threaded structure of the second lead screw 14 is connected to the adjusting bracket 17. When the second lead screw 14 rotates, the adjusting bracket 17 will slide along the track of the base 1, moving closer to or away from the glass tube. During the movement of the adjusting bracket 17, the pointer at one end, in conjunction with the scale line on the base 1, can display the current position of the adjusting bracket in real time.

[0032] A telescopic rod 18 is fixedly connected to the top center of the adjusting bracket 17. A laser cutter is installed at one end of the telescopic rod. When the adjusting bracket 17 is moved to the appropriate position, the height of the laser cutting head can be adjusted through the telescopic end of the telescopic rod 18 to ensure that the cutting path of the laser cutter is aligned with the glass tube. The motor is started to drive the bottom support wheel 5 to rotate. The support wheel 5 drives the glass tube to rotate at a certain speed, thereby ensuring that the cutting path is uniform. The laser cutter emits a high-energy laser beam and uses the rotation of the glass tube to achieve 360° cutting.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" or "linked" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can refer to a mechanical connection or an electrical connection; it can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A precision positioning medical glass tube cutting device, comprising a base (1) and a support rod (7), the inside of the base (1) is provided with symmetrically distributed adjusting strips (2), and the inside of the base (1) is fixedly connected with equidistantly distributed slide rods (3); characterized in that The top of the adjusting strip (2) is provided with equidistantly distributed supports, and the top of the adjusting strip (2) is fixedly connected with support wheels (5) through the supports, and the support wheels (5) are driven by a motor, the inside of the adjusting strip (2) is provided with equidistantly distributed openings, and the adjusting strip (2) is slidably connected with the outside of the slide rod (3) through the openings, a first lead screw (4) is rotatably connected in the middle of the base (1), the screw directions of the two ends of the first lead screw (4) are opposite, and the two ends of the first lead screw (4) are threadedly connected to the insides of the two adjusting strips (2).

2. A precision positioned medical glass tubing cutting device as defined in claim 1, wherein: One end of the base (1) is fixedly connected with a limiting disc (6), both sides of the end of the base (1) close to the limiting disc (6) are fixedly connected with limiting discs (6), and the limiting discs (6) are symmetrically distributed on the end of the base (1).

3. A precision positioned medical glass tubing cutting device as defined in claim 2, wherein: The top of the support rod (7) is fixedly connected with a cover plate (8), the inside of the limiting disc (6) is rotatably connected with a rotating disc (9), and the insides of the two support rods (7) are slidably connected with movement plates (10).

4. A precision positioned medical glass tubing cutting device as defined in claim 3, wherein: The bottom of the movement plate (10) is slidably connected with two symmetrically distributed movement supports (11) through guide rails, the bottom of the movement support (11) is provided with a support wheel (5), one side of the movement support (11) is fixedly connected with a connecting rod, the outside of the connecting rod is slidably connected with a pull ring (12), and the pull ring (12) is fixedly connected to the top of the adjusting strip (2).

5. A precision positioned medical glass tubing cutting device as defined in claim 4, wherein: The top of the movement plate (10) is fixedly connected with a pull ring (12), the pull ring (12) is slidably connected to the inside of the cover plate (8), and the top of the pull ring (12) extends to the top of the cover plate (8), springs (13) are fixedly connected between the top of the movement plate (10) and the cover plate (8) on both sides, and the springs (13) are located on the outside of the support rod (7).

6. A precision positioned medical glass tubing cutting device as defined in claim 1, wherein: The top of the base (1) is rotatably connected with symmetrically distributed second lead screws (14), one end of the second lead screw (14) away from the limiting disc (6) is fixedly connected with a bevel gear, the second lead screw (14) is connected with a transmission rod (15) through the bevel gear, an adjusting rod (16) is mounted between the two transmission rods (15), and the transmission rod (15) and the adjusting rod (16) are connected with each other through the bevel gears.

7. A precision positioned medical glass tubing cutting device as defined in claim 6, wherein: The outside of the second lead screw (14) is threadedly connected with an adjusting support (17), the top of the adjusting support (17) is fixedly connected with an extension rod (18) in the middle, and the bottoms of the two ends of the adjusting support (17) are slidably connected to the inside of the base (1), the extension end of the extension rod (18) extends to the inside of the adjusting support (17), and the extension end of the extension rod (18) is fixedly connected with a laser cutter.

Citation Information

Patent Citations

  • Cutting device of borosilicate brown medical glass tube round mouth machine

    CN217600596U