Precise size control device for medium borosilicate medicinal glass tube

Abstract

The invention belongs to the field of accurate control equipment, and particularly relates to a medium borosilicate medicinal glass tube size accurate control device which comprises a base, a vertical plate is fixedly mounted at the top of the base, a transverse plate is fixedly mounted at the top of the vertical plate, a guide sleeve is fixedly mounted at the bottom of the transverse plate, and a supporting frame is fixedly mounted at the top of the base. The top of the supporting frame is rotatably provided with a rotating disc, the top of the rotating disc is fixedly provided with a plurality of supporting sleeves, the tops of the supporting sleeves are fixedly provided with the same placing disc, the top of the base is fixedly provided with a stepping motor, and an output shaft of the stepping motor is fixedly connected with the rotating disc. The device is reasonable in design, the size of a glass tube is accurately detected through the inner diameter and outer diameter detection mechanism, automatic operation is achieved through a stepping motor and a driving motor, stable detection is ensured through the pressing mechanism, an alarm gives an early warning when the glass tube is unqualified, the detection precision, the automation degree and the production efficiency are comprehensively improved, and the problems that existing equipment is low in precision and poor in automation degree are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of precision control equipment, and particularly relates to a device for precisely controlling the size of medium-borosilicate pharmaceutical glass tubes. Background Art

[0002] As a key material for drug packaging, the dimensional accuracy of medium-borosilicate pharmaceutical glass tubes is directly related to the integrity and sealing performance of drug packaging. During the drug production process, dimensional deviations of the glass tubes may lead to poor sealing, exposing the drugs to the external environment, thereby causing problems such as drug deterioration and microbial contamination, seriously threatening the safety and stability of drugs. With the continuous development of the pharmaceutical industry, the control of drug quality has become increasingly strict, which has also promoted the continuous improvement of the dimensional accuracy standards for medium-borosilicate pharmaceutical glass tubes. However, there are many defects in the equipment currently used in the market for detecting the size of glass tubes. Common detection equipment mostly relies on manual operation and simple measuring tools, which not only has low efficiency, but also the detection accuracy is extremely vulnerable to human factors, making it difficult to meet the needs of large-scale and high-precision production. Although automated detection equipment has been applied, most of them can only perform single-dimensional detection and cannot accurately measure the inner diameter and outer diameter of the glass tube simultaneously, resulting in low overall detection accuracy. In addition, the detection data processing and feedback mechanism of existing equipment is imperfect, and it cannot effectively convert the detection results into the basis for production adjustment in a timely manner, making it difficult to perform real-time and precise control on the production process of glass tubes. Therefore, we propose a device for precisely controlling the size of medium-borosilicate pharmaceutical glass tubes to solve the above problems. Summary of the Invention

[0003] The purpose of the present invention is to solve the drawbacks existing in the prior art, and to propose a device for precisely controlling the size of medium-borosilicate pharmaceutical glass tubes.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions: A device for precisely controlling the size of medium-borosilicate pharmaceutical glass tubes, including a base. A vertical plate is fixedly installed at the top of the base, a horizontal plate is fixedly installed at the top of the vertical plate, a guide sleeve is fixedly installed at the bottom of the horizontal plate, a support frame is fixedly installed at the top of the base, a rotating disk is rotatably installed at the top of the support frame, a plurality of support sleeves are fixedly installed at the top of the rotating disk, and the top of the plurality of support sleeves is fixedly installed with the same placing disk. A stepping motor is fixedly installed at the top of the base, and the output shaft of the stepping motor is fixedly connected to the rotating disk. A plurality of placing holes are equidistantly opened at the top of the placing disk, a plurality of grooves are equidistantly opened at the top of the rotating disk, positioning seats are placed in the grooves, positioning grooves are opened at the top of the positioning seats, glass tubes for medium-borosilicate medicine are placed in the placing holes, communication holes are opened on the bottom inner wall of the grooves, and a first magnet is installed at the bottom of the positioning seat; A drive shaft is rotatably installed at the bottom of the horizontal plate. A threaded rod is fixedly installed at the bottom end of the drive shaft. A lifting plate is sleeved on the threaded rod in a threaded manner. A push rod is fixedly installed at the top of the lifting plate. A second magnet is fixedly installed at the top of the push rod, and the second magnet is located directly below the corresponding communication hole. A rotating shaft is rotatably installed at the bottom of the horizontal plate. The rotating shaft is located inside the guide sleeve. An inner diameter detection seat is fixedly installed at the bottom end of the rotating shaft. Inner diameter detection mechanisms are arranged on both sides of the inner diameter detection seat. A plurality of detection sleeves are fixedly installed on the outer sides of the guide sleeves. A plurality of moving holes are formed in the inner wall of the guide sleeve. A second detection mechanism for outer diameter detection is arranged inside the detection sleeve.

[0005] Preferably, the first detection mechanism includes a moving groove, a first detection protrusion, a pressure sensor, and a fixing spring. The moving groove is formed on both sides of the inner diameter detection seat. The first detection protrusion is slidably installed in the moving groove. A pressure sensor is fixedly installed on one inner wall of the moving groove. A fixing spring is fixedly installed on one side of the pressure sensor. One end of the fixing spring is fixedly installed on the first detection protrusion.

[0006] Preferably, the second detection mechanism includes a second pressure sensor, a second detection protrusion, and a connecting spring. The pressure sensor is fixedly installed on the inner wall of the detection sleeve. The second detection protrusion is slidably installed in the corresponding moving hole. A connecting spring is fixedly installed on one side of the pressure sensor. One end of the connecting spring is fixedly installed on the second detection protrusion.

[0007] Preferably, a guide rod is fixedly installed at the top of the base. A guide hole is formed in the lifting plate, and the guide rod is slidably connected to the corresponding guide hole.

[0008] Preferably, a control box is fixedly installed at the top of the horizontal plate. A drive motor is fixedly installed at the top of the control box, and the output shaft of the drive motor is fixedly connected to the drive shaft. A transmission mechanism is arranged between the drive motor and the rotating shaft.

[0009] Preferably, the transmission mechanism includes a driving belt pulley, a driven belt pulley, and a belt. The driving belt pulley is fixedly installed on the output shaft of the drive motor. The driven belt pulley is fixedly installed on the rotating shaft, and the same belt is sleeved on the driving belt pulley and the driven belt pulley for transmission.

[0010] Preferably, connecting grooves with open tops are equidistantly formed on the inner wall of the groove. A pressing mechanism for fixing the glass tube is arranged between the positioning seat and the support sleeve.

[0011] Preferably, the pressing mechanism includes a rectangular hole, a trapezoidal seat, and a rubber seat. The rectangular hole is formed in the inner wall of the positioning groove. A trapezoidal seat is slidably installed in the rectangular hole. A rubber seat is fixedly installed on one side of the trapezoidal seat. The rubber seat is in contact with the glass tube, and the trapezoidal seat is adapted to the support sleeve.

[0012] Preferably, a controller is fixedly installed on the top of the base, and the stepping motor, the driving motor, the first pressure sensor and the second pressure sensor are all electrically connected to the controller, and an alarm is installed on the controller.

[0013] Preferably, an annular rotating groove is formed at the top of the support frame, and an annular rotating seat is formed at the bottom of the rotating disc, and the annular rotating seat is rotationally connected to the annular rotating groove.

[0014] The beneficial effects of the present invention: 1. Place the glass tube into the placement hole so that the bottom of the glass tube is placed in the positioning groove. By starting the stepping motor, the stepping motor can drive the rotating disc, the support sleeve and the placement disc to rotate, and the placement disc can drive the glass tube to rotate to directly below the inner diameter detection mechanism and the outer diameter detection mechanism; 2. Through the cooperation of the driving motor, the driving shaft, the threaded rod and the lifting plate, the lifting plate drives the magnet II to move upward through the push rod. The magnet II is adsorbed to the magnet I, and the magnet I can push the seat and the glass tube upward. The glass tube can enter the guide sleeve. When the positioning seat moves upward, the support sleeve can squeeze the trapezoidal seat so that the trapezoidal seat can move toward the direction close to the glass tube, and the trapezoidal seat squeezes and fixes the glass tube through the rubber seat; 3. When the glass tube enters the guide sleeve, the outer side of the guide sleeve squeezes the detection convex block II, and the detection convex block II squeezes the second pressure sensor through the connecting spring. The second pressure sensor can collect the pressure data, and the inner diameter detection seat can be inserted into the glass tube. The inner wall of the glass tube can squeeze the detection convex block I, and the detection convex block I squeezes the first pressure sensor through the fixing spring. The first pressure sensor can collect the pressure change data. When the inner diameter or outer diameter of the glass tube has a large error, the pressure change data is large at this time. When the pressure change data is greater than the set value, the glass tube is judged as unqualified and an alarm is used for early warning; 4. Through the cooperation of the driving pulley, the belt and the driven pulley, the driving motor can drive the rotating shaft to rotate, the rotating shaft can drive the inner detection seat to rotate, and the inner detection seat can drive the detection convex block I to rotate. When the glass tube moves upward, the detection convex block I rotates at the same time, which can change the collected position and improve the detection accuracy. Description of the drawings

[0015] Figure 1 is a three-dimensional structural schematic diagram of a precise size control device for a middle borosilicate medicinal glass tube proposed by the present invention; Figure 2 is a bottom three-dimensional structural schematic diagram of a precise size control device for a middle borosilicate medicinal glass tube proposed by the present invention; Figure 3Schematic diagram of the partial three-dimensional structure of a device for precisely controlling the dimensions of a medium-borosilicate pharmaceutical glass tube proposed by the present invention; Figure 4 is Figure 3 the schematic diagram of the sectional three-dimensional structure in; Figure 5 is Figure 4 the schematic diagram of part A structure in; Figure 6 Another schematic diagram of the partial three-dimensional structure of a device for precisely controlling the dimensions of a medium-borosilicate pharmaceutical glass tube proposed by the present invention; Figure 7 is Figure 6 the schematic diagram of the sectional three-dimensional structure in; Figure 8 is Figure 7 the schematic diagram of part B structure in; Figure 9 is Figure 6 the schematic diagram of part C structure in.

[0016] In the figure: 101, base; 102, vertical plate; 103, horizontal plate; 201, support frame; 202, rotating disk; 203, support sleeve; 204, placement disk; 205, stepper motor; 301, placement hole; 302, glass tube; 303, groove; 304, positioning seat; 305, positioning groove; 401, connecting groove; 402, rectangular hole; 403, trapezoidal seat; 404, rubber seat; 405, communication hole; 406, magnet one; 501, control box; 502, drive motor; 503, drive shaft; 504, threaded rod; 505, stabilizing plate; 601, lifting plate; 602, guide rod; 603, push rod; 604, magnet two; 701, guide sleeve; 702, rotating shaft; 703, inner diameter detection seat; 704, moving groove; 705, detection protrusion one; 706, pressure sensor one; 707, fixing spring; 801, detection sleeve; 802, moving hole; 803, detection protrusion two; 804, pressure sensor two; 805, connecting spring; 901, driving pulley; 902, driven pulley; 903, belt; 1001, controller; 1002, alarm. Detailed implementation manners

[0017] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0018] When a component is said to be "disposed on" another component, it can be directly on the other component or there can be an intermediate component. "Disposed" represents a way of existence and can be connection methods such as connection, installation, fixed connection, active connection, etc. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this invention belongs. The terms used in the specification of this invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0020] Referring to Figures 1 - 9 , a device for precisely controlling the size of a medium borosilicate medicinal glass tube, comprising a base 101, a vertical plate 102 fixedly installed on the top of the base 101, a horizontal plate 103 fixedly installed on the top of the vertical plate 102, a guide sleeve 701 fixedly installed on the bottom of the horizontal plate 103, a support frame 201 fixedly installed on the top of the base 101, a rotating disk 202 rotatably installed on the top of the support frame 201, a plurality of support sleeves 203 fixedly installed on the top of the rotating disk 202, the top of the plurality of support sleeves 203 fixedly installing the same placement disk 204, a stepping motor 205 fixedly installed on the top of the base 101, the output shaft of the stepping motor 205 being fixedly connected to the rotating disk 202, a plurality of placement holes 301 being equidistantly opened on the top of the placement disk 204, a plurality of grooves 303 being equidistantly opened on the top of the rotating disk 202, a positioning seat 304 being placed in the groove 303, a positioning groove 305 being opened on the top of the positioning seat 304, a glass tube 302 for medium borosilicate medicine being placed in the placement hole 301, a communication hole 405 being opened on the bottom inner wall of the groove 303, and a first magnet 406 being installed at the bottom of the positioning seat 304; The bottom of the cross plate 103 is rotatably installed with a drive shaft 503. The bottom end of the drive shaft 503 is fixedly installed with a threaded rod 504. A lifting plate 601 is sleeved on the threaded rod 504 in a threaded manner. The top of the lifting plate 601 is fixedly installed with a push rod 603. The top of the push rod 603 is fixedly installed with a second magnet 604, and the second magnet 604 is located directly below the corresponding communication hole 405. The top of the base 101 is fixedly installed with a guide rod 602. A guide hole is opened on the lifting plate 601, and the guide rod 602 is slidably connected to the corresponding guide hole. The bottom of the cross plate 103 is rotatably installed with a rotating shaft 702. The rotating shaft 702 is located inside the guide sleeve 701. The bottom end of the rotating shaft 702 is fixedly installed with an inner diameter detection seat 703. Inner diameter detection mechanisms are provided on both sides of the inner diameter detection seat 703. A plurality of detection sleeves 801 are fixedly installed on the outer sides of the guide sleeves 701. A plurality of moving holes 802 are opened on the inner walls of the guide sleeves 701. A second detection mechanism for outer diameter detection is provided inside the detection sleeves 801.

[0021] In this embodiment, the first detection mechanism includes a moving groove 704, a first detection convex block 705, a pressure sensor, and a fixing spring 707. The moving groove 704 is opened on both sides of the inner diameter detection seat 703. The first detection convex block 705 is slidably installed in the moving groove 704. A pressure sensor is fixedly installed on one inner wall of the moving groove 704. A fixing spring 707 is fixedly installed on one side of the pressure sensor. One end of the fixing spring 707 is fixedly installed on the first detection convex block 705. Through the cooperation of the pressure sensor and the fixing spring 707, the change in the inner diameter of the glass tube 302 can be accurately sensed and converted into an electrical signal, effectively improving the accuracy of inner diameter detection. In this embodiment, the second detection mechanism includes a second pressure sensor 804, a second detection convex block 803, and a connecting spring 805. The pressure sensor is fixedly installed on the inner wall of the detection sleeve 801. The second detection convex block 803 is slidably installed in the corresponding moving hole 802. A connecting spring 805 is fixedly installed on one side of the pressure sensor. One end of the connecting spring 805 is fixedly installed on the second detection convex block 803. This structure enables the change in the outer diameter of the glass tube 302 to be accurately transmitted to the second pressure sensor 804 through the second detection convex block 803, greatly improving the accuracy of outer diameter detection.

[0022] In this embodiment, a control box 501 is fixedly installed at the top of the cross plate 103. A drive motor 502 is fixedly installed at the top of the control box 501, and the output shaft of the drive motor 502 is fixedly connected to the drive shaft 503. A transmission mechanism is provided between the drive motor 502 and the rotating shaft 702. The transmission mechanism includes a driving pulley 901, a driven pulley 902, and a belt 903. The driving pulley 901 is fixedly installed on the output shaft of the drive motor 502, the driven pulley 902 is fixedly installed on the rotating shaft 702, and the same belt 903 is sleeved on the driving pulley 901 and the driven pulley 902 for transmission. Through this transmission mechanism, it can ensure that the power of the drive motor 502 is efficiently and stably transmitted to the rotating shaft 702, ensure the stable rotation of the inner diameter detection seat 703, and improve the stability and reliability of the detection.

[0023] In this embodiment, connecting grooves 401 with openings at the top are equidistantly formed on the inner wall of the groove 303. A pressing mechanism for fixing the glass tube 302 is provided between the positioning seat 304 and the support sleeve 203. The pressing mechanism includes a rectangular hole 402, a trapezoidal seat 403, and a rubber seat 404. The rectangular hole 402 is formed on the inner wall of the positioning groove 305. A trapezoidal seat 403 is slidably installed in the rectangular hole 402. A rubber seat 404 is fixedly installed on one side of the trapezoidal seat 403. The rubber seat 404 is in contact with the glass tube 302, and the trapezoidal seat 403 is adapted to the support sleeve 203. This pressing mechanism can firmly fix the glass tube 302 during the detection process, effectively prevent the glass tube 302 from shaking, and provide a strong guarantee for accurate detection. In this embodiment, a controller 1001 is fixedly installed at the top of the base 101, and the stepper motor 205, the drive motor 502, the first pressure sensor 706, and the second pressure sensor 804 are all electrically connected to the controller 1001. An alarm 1002 is installed on the controller 1001. An annular rotating groove is formed at the top of the support frame 201, and an annular rotating seat is formed at the bottom of the rotating disk 202. The annular rotating seat is rotatably connected to the annular rotating groove. The controller 1001 realizes the centralized automatic control of each component, and the cooperation between the annular rotating groove and the annular rotating seat ensures the smooth rotation of the rotating disk 202, and overall improves the automation level and operation stability of the device.

[0024] Working principle of the present invention: Place the glass tube 302 into the placement hole 301 so that the bottom of the glass tube 302 is placed in the positioning groove 305. By starting the stepper motor 205, the stepper motor 205 can drive the rotating disk 202, the support sleeve 203, and the placement disk 204 to rotate. The placement disk 204 can drive the glass tube 302 to rotate to directly below the inner diameter detection mechanism and the outer diameter detection mechanism. By starting the driving motor 502, the driving motor 502 drives the threaded rod 504 to rotate through the driving shaft 503. The threaded rod 504 can drive the lifting plate 601 to move upward. The lifting plate 601 drives the magnet two 604 to move upward through the push rod 603. The magnet two 604 adsorbs to the magnet one 406, and the magnet one 406 can push the seat and the glass tube 302 to move upward. The glass tube 302 can enter the guide sleeve 701. When the positioning seat 304 moves upward, the support sleeve 203 can squeeze the trapezoidal seat 403 so that the trapezoidal seat 403 can move in the direction close to the glass tube 302. The trapezoidal seat 403 squeezes and fixes the glass tube 302 through the rubber seat 404; When the glass tube 302 enters the guide sleeve 701, the outer side of the guide sleeve 701 squeezes the detection bump two 803. The detection bump two 803 squeezes the pressure sensor two 804 through the connecting spring 805. The pressure data can be collected through the pressure sensor two 804. And the inner diameter detection seat 703 can be inserted into the glass tube 302. The inner wall of the glass tube 302 can squeeze the detection bump one 705. The detection bump one 705 squeezes the pressure sensor one 706 through the fixing spring 707. The pressure change data can be collected through the pressure sensor one 706. When the inner diameter or outer diameter error of the glass tube 302 is relatively large, the pressure change data is relatively large at this time. When the pressure change data is greater than the set value, the glass tube 302 is judged as unqualified at this time and a warning is given through the alarm 1002. Through the cooperation of the driving pulley 901, the belt 903, and the driven pulley 902, the driving motor 502 can drive the rotating shaft 702 to rotate. The rotating shaft 702 can drive the inner detection seat to rotate. The inner detection seat can drive the detection bump one 705 to rotate. When the glass tube 302 moves upward and the detection bump one 705 rotates at the same time, the collected position can be changed, and the detection accuracy can be improved.

[0025] The above has introduced in detail a device for precisely controlling the size of a medium-borosilicate pharmaceutical glass tube provided by the present invention. Specific embodiments are used in this article to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can still be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A device for accurately controlling the size of a borosilicate medicinal glass tube, characterized in that: The invention comprises a base (101), a vertical plate (102) is fixedly mounted on the top of the base (101), a horizontal plate (103) is fixedly mounted on the top of the vertical plate (102), a guide sleeve (701) is fixedly mounted on the bottom of the horizontal plate (103), a support frame (201) is fixedly mounted on the top of the base (101), a rotating disk (202) is rotatably mounted on the top of the support frame (201), a plurality of support sleeves (203) are fixedly mounted on the top of the rotating disk (202), a same placement disk (204) is fixedly mounted on the top of the plurality of support sleeves (203), a stepping motor (205) is fixedly mounted on the top of the base (101), and an output shaft of the stepping motor (205) is fixedly connected to the rotating disk (202); The top of the placement plate (204) is provided with a plurality of placement holes (301) at equal intervals, the top of the rotating plate (202) is provided with a plurality of grooves (303) at equal intervals, a positioning seat (304) is placed in the groove (303), a positioning groove (305) is provided on the top of the positioning seat (304), a glass tube (302) for borosilicate medicine is placed in the placement hole (301), a connecting hole (405) is provided on the inner wall of the bottom of the groove (303), and a magnet 1 (406) is installed at the bottom of the positioning seat (304); A driving shaft (503) is rotatably mounted on the bottom of the horizontal plate (103); a threaded rod (504) is fixedly mounted on the bottom end of the driving shaft (503); a lifting plate (601) is threadedly sleeved on the threaded rod (504); a push rod (603) is fixedly mounted on the top of the lifting plate (601); a second magnet (604) is fixedly mounted on the top of the push rod (603); and the second magnet (604) is located directly below the corresponding connecting hole (405); A rotating shaft (702) is rotatably mounted at the bottom of the horizontal plate (103), the rotating shaft (702) is located in the guide sleeve (701), an inner diameter detection seat (703) is fixedly mounted at the bottom end of the rotating shaft (702), inner diameter detection mechanisms are arranged on both sides of the inner diameter detection seat (703), a plurality of detection sleeves (801) are fixedly mounted on the outer side of the guide sleeve (701), a plurality of movable holes (802) are opened on the inner wall of the guide sleeve (701), and a second detection mechanism for outer diameter detection is arranged in the detection sleeve (801).

2. According to claim 1, a device for accurately controlling the size of a borosilicate pharmaceutical glass tube, characterized in that: The detection mechanism 1 comprises a movable groove (704), a detection protrusion 1 (705), a pressure sensor and a fixed spring (707); the movable groove (704) is provided on both sides of the inner diameter detection seat (703); the detection protrusion 1 (705) is slidably mounted in the movable groove (704); a pressure sensor is fixedly mounted on an inner wall of one side of the movable groove (704); a fixed spring (707) is fixedly mounted on one side of the pressure sensor; and one end of the fixed spring (707) is fixedly mounted on the detection protrusion 1 (705).

3. The device for accurately controlling the size of a borosilicate pharmaceutical glass tube according to claim 1, characterized in that: The second detection mechanism comprises a second pressure sensor (804), a second detection protrusion (803) and a connecting spring (805); the pressure sensor is fixedly mounted on the inner wall of the detection sleeve (801); the second detection protrusion (803) is slidably mounted in the corresponding movable hole (802); a connecting spring (805) is fixedly mounted on one side of the pressure sensor; one end of the connecting spring (805) is fixedly mounted on the second detection protrusion (803).

4. The device for accurately controlling the size of a borosilicate pharmaceutical glass tube according to claim 1, characterized in that: A guide rod (602) is fixedly mounted on the top of the base (101), a guide hole is provided on the lifting plate (601), and the guide rod (602) is slidably connected to the corresponding guide hole.

5. The device for accurately controlling the size of a borosilicate pharmaceutical glass tube according to claim 1, characterized in that: A control box (501) is fixedly mounted on the top of the transverse plate (103), a drive motor (502) is fixedly mounted on the top of the control box (501), an output shaft of the drive motor (502) is fixedly connected to the drive shaft (503), and a transmission mechanism is provided between the drive motor (502) and the rotating shaft (702).

6. The device for accurately controlling the size of a borosilicate pharmaceutical glass tube according to claim 5, characterized in that: The transmission mechanism comprises a driving pulley (901), a driven pulley (902) and a belt (903); the driving pulley (901) is fixedly mounted on the output shaft of the driving motor (502); the driven pulley (902) is fixedly mounted on the rotating shaft (702); and the driving pulley (901) and the driven pulley (902) are provided with the same belt (903) on their transmission sleeves.

7. The device for accurately controlling the size of a borosilicate pharmaceutical glass tube according to claim 1, characterized in that: Connecting grooves (401) with an open top are provided at equal intervals on the inner wall of the groove (303), and a clamping mechanism for fixing the glass tube (302) is provided between the positioning seat (304) and the supporting sleeve (203).

8. The device for accurately controlling the size of a borosilicate pharmaceutical glass tube according to claim 7, characterized in that: The clamping mechanism comprises a rectangular hole (402), a trapezoidal seat (403) and a rubber seat (404); the rectangular hole (402) is formed on the inner wall of the positioning groove (305); the trapezoidal seat (403) is slidably mounted in the rectangular hole (402); a rubber seat (404) is fixedly mounted on one side of the trapezoidal seat (403); the rubber seat (404) is in contact with the glass tube (302), and the trapezoidal seat (403) is adapted to the support sleeve (203).

9. The device for accurately controlling the size of a borosilicate pharmaceutical glass tube according to claim 1, characterized in that: A controller (1001) is fixedly mounted on the top of the base (101), and the stepper motor (205), the drive motor (502), the pressure sensor 1 (706) and the pressure sensor 2 (804) are all electrically connected to the controller (1001), and an alarm (1002) is mounted on the controller (1001).

10. The device for accurately controlling the size of a borosilicate pharmaceutical glass tube according to claim 1, characterized in that: The top of the support frame (201) is provided with an annular rotating groove, the bottom of the rotating disk (202) is provided with an annular rotating seat, and the annular rotating seat is rotatably connected to the annular rotating groove.

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