A device for sealing glass tubes suitable for pharmaceutical glass tube production lines

Abstract

The utility model relates to a device for sealing glass tube of medicinal glass tube production line, and relates to glass tube production technical field, ignites sealing lamp holder, and the lamp holder combustion carries out heating to glass tube sealing position, when glass tube is transported to glass tube self-rotation belt and glass tube head self-rotation belt position, because height adjusting mechanism I drives slide III to descend to the upper end of glass tube and belt I contact, height adjusting mechanism II drives slide IV to descend to the upper end of glass tube and belt II contact, glass tube can rotate along its axial when glass tube is transported from rear to front end, and glass tube and glass tube head are driven to rotate by belt I and belt II and are stretched to two directions, and sealing of glass tube end is realized in the process of movement, improve glass tube sealing efficiency, reduce cutting waste pipe rate, and the glass tube after sealing can improve product physical and chemical performance when subsequent glass tube is processed into ampoule vial, and the replacement caused by the outer diameter of glass tube is saved.

Description

Technical Field

[0001] This invention relates to the field of glass tube manufacturing technology, and more specifically to a device for sealing glass tubes in a pharmaceutical glass tube production line. Background Technology

[0002] Currently, the sealing structure of glass tube sealing equipment in pharmaceutical glass tube production lines mainly adopts a spiral or gripper structure. The problems with this are low production efficiency and a large amount of waste glass tubes. Furthermore, glass tube sealing equipment using spiral or gripper mechanisms has limited adjustment of the sealed glass tube length during production. Therefore, when producing glass tubes of different specifications, it is necessary to change the spiral or gripper according to the outer diameter of the glass tube, thus affecting production efficiency. Summary of the Invention

[0003] In order to overcome the shortcomings of the above technologies, the present invention provides a device for sealing glass tubes in pharmaceutical glass tube production lines, which improves production line efficiency and glass utilization.

[0004] The technical solution adopted by this invention to overcome its technical problems is: An apparatus for sealing glass tubes in a pharmaceutical glass tube production line, comprising: The base has a linear guide rail I installed at its upper end along the left and right directions; The frame, located at the top of the base, is mounted on slider I of linear guide I; A rack drive mechanism, mounted on the base, is used to drive the rack to move left and right along the base; A chain conveyor mechanism, mounted on the frame, is used to transport glass tubes from the rear end to the front end; A fixed frame is installed at the top of the machine frame. The fixed frame is horizontally set in the left and right direction. A fixed seat is fixed at the outer end of the fixed frame, and a linear guide rail II is horizontally installed at the inner end in the left and right direction. The movable seat is installed on the slider II of the linear guide rail II. The slide block III is mounted on the fixed base via the height adjustment mechanism I. The height adjustment mechanism I drives the slide block III to move vertically. The left end of the slide block III is rotatably mounted with pulley I, and the right end is rotatably mounted with pulley II. The pulley I and pulley II are connected by a belt I. The slide block IV is equipped with a power mechanism I for driving the belt I. The transmission direction of the belt I matches the conveying direction of the conveyor chain. The height adjustment mechanism I drives the slide block III to move down until the belt I contacts the upper end of the glass tube. Slide IV is mounted on slide IV via height adjustment mechanism II. Height adjustment mechanism II drives slide IV to move vertically. Pulley IV is rotatably mounted on the left end of slide IV, and pulley III is rotatably mounted on its right end. Pulley III and pulley IV are connected by belt II. Slide IV is equipped with a power mechanism II for driving belt II. The transmission direction of belt II matches the conveying direction of the conveyor chain. Height adjustment mechanism II drives slide IV to move downwards until belt II contacts the upper end of the glass tube; and Several lamp heads are mounted on the frame, with each lamp head spaced apart in the left-right direction and located at the inner end of the conveyor chain.

[0005] Furthermore, the aforementioned frame drive mechanism includes a screw I rotatably mounted in the base, the axis of the screw I being parallel to the length direction of the linear guide rail I, the screw I being threadedly connected to the frame, and a handwheel I being mounted at the head end of the screw I.

[0006] Furthermore, the aforementioned chain conveying mechanism includes a passive sprocket rotatably mounted on the frame and a driving sprocket rotatably mounted on the frame. The axes of the passive sprocket and the driving sprocket are horizontally arranged in the left-right direction. The passive sprocket and the driving sprocket are connected by a conveying chain. A motor is mounted on the frame, and the output shaft of the motor is connected to the driving sprocket.

[0007] To improve the reliability of the conveying process, the shaft height of the aforementioned driving sprocket is higher than the shaft height of the driven sprocket.

[0008] Furthermore, the aforementioned height adjustment mechanism I includes a linear guide rail III mounted vertically on a slide block III and a screw III rotatably mounted in a fixed base. The slider III of the linear guide rail III is mounted on the fixed base. The axis of the screw III is set vertically. The screw III is threadedly connected to the slide block III. A handwheel III is mounted on the upper end of the screw III.

[0009] Furthermore, the aforementioned height adjustment mechanism II includes a linear guide rail IV mounted vertically on a slide block IV and a screw IV rotatably mounted in the slide block IV. The slider IV of the linear guide rail IV is mounted on a movable seat. The axis of the screw IV is set vertically. The screw IV is threadedly connected to the slide block IV. A handwheel IV is mounted on the upper end of the screw IV.

[0010] Furthermore, the aforementioned power mechanism I includes a motor II mounted on a fixed base, a driving pulley I mounted on the output shaft of the motor II, and a driven pulley I coaxially mounted on pulley I or pulley II. The driving pulley I and the driven pulley I are connected by a transmission belt I.

[0011] Furthermore, the aforementioned power mechanism II includes a motor III mounted on a slide IV, a drive pulley II mounted on the output shaft of the motor III, and a driven pulley II coaxially mounted on pulley III or pulley IV. The drive pulley II and the driven pulley II are connected by a transmission belt II.

[0012] To accommodate glass tubes of different diameters, the system also includes a guide rail mounted vertically on the frame, a slide block I slidably mounted on the guide rail, and a screw II rotatably mounted on the frame. The axis of the screw II is set vertically, and the screw II is threadedly connected to the slide block I. A handwheel II is installed at the lower end of the screw II. The chain conveyor mechanism and each lamp head are mounted on the slide block I.

[0013] To facilitate adjustment of the sealing position, a bracket is also included. Each lamp head is installed on the bracket. Connecting plates are horizontally installed at the left and right ends of the bracket along the front and back directions. Elongated holes are provided in the connecting plates along the front and back directions. Hand-tightened bolts pass through the elongated holes and are screwed into the frame.

[0014] The beneficial effects of this invention are as follows: Igniting the sealing lamp heats the sealing area of ​​the glass tube. When the glass tube is conveyed to the positions of the glass tube rotation belt and the glass tube head rotation belt, the height adjustment mechanism I drives the slide III to move down until the belt I contacts the upper end of the glass tube, and the height adjustment mechanism II drives the slide IV to move down until the belt II contacts the upper end of the glass tube. Since the transmission directions of belts I and II match the transmission direction of the conveyor chain, belts I and II press the glass tube tightly against the conveyor chain at the upper end, allowing the glass tube to rotate axially as it is conveyed from back to front. The glass tube and the glass tube head are driven to rotate and stretch in two directions by belts I and II, achieving sealing of the glass tube end during this movement. This improves the glass tube sealing efficiency, reduces the waste rate from cutting, and enhances the physical and chemical properties of the sealed glass tube when it is subsequently processed into ampoules. Furthermore, it eliminates the need for replacement parts due to different glass tube outer diameters. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a front view structural diagram of the present invention; Figure 3 for Figure 1 GG-direction cross-section view; Figure 4 This is a three-dimensional structural diagram of the fixing seat portion of the present invention; Figure 5 This is a perspective structural view of the movable seat portion of the present invention; Figure 6 This is a cross-sectional view of the fixing seat portion of the present invention; Figure 7This is a cross-sectional structural view of the movable seat portion of the present invention; Figure 8 This is a schematic diagram of the working state of the present invention; Figure 9 This is a perspective structural view of the connecting plate portion of the present invention; In the diagram, 1. Base; 2. Linear guide rail I; 3. Slider I; 4. Frame; 5. Screw I; 6. Handwheel I; 7. Slide I; 8. Guide rail; 9. Handwheel II; 10. Conveyor chain; 11. Lamp head; 12. Fixing bracket; 13. Fixing seat; 14. Linear guide rail II; 15. Slider II; 16. Slide II seat; 17. Driven sprocket; 18. Motor I; 19. Screw II; 20. Belt I; 21. Belt II; 22. Drive sprocket; 23. Linear guide rail III; 24. Slider III; 25. Slide III; 26. Motor II; 27. Drive pulley I; 28. Handwheel III; 29. ​​Screw III; 30. Pulley I; 31. Pulley II; 32. Linear guide rail IV; 33. Slider IV; 34. Slide IV; 35. Motor III; 36. Drive pulley II; 37. Handwheel IV; 38. Pulley III 39. Pulley IV 40. Driven Pulley I 41. Screw IV 42. Glass Tube 43. Bracket 44. Connecting Plate 45. Long Hole 46. Hand-Tightened Bolt 47. Driven Pulley II. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1 To be continued Figure 9 The present invention will be further described below.

[0017] A device for sealing glass tubes in a pharmaceutical glass tube production line includes: a base 1 with a linear guide rail I 2 arranged on its upper end in the left-right direction; a frame 4 located on the upper end of the base 1 and mounted on the slider I 3 of the linear guide rail I 2; a frame drive mechanism disposed on the base 1 for driving the frame 4 to move left and right along the base 1; a chain conveyor mechanism disposed on the frame 4 for conveying glass tubes 42 from the rear end to the front end; a fixed frame 12 mounted on the upper end of the frame 4, the fixed frame 12 being horizontally arranged in the left-right direction, a fixed seat 13 fixed to the outer end of the fixed frame 12, and a linear guide rail II 14 horizontally mounted on its inner end in the left-right direction, a movable seat 16 mounted on the slider II 15 of the linear guide rail II 14; and a slide III 25 mounted on the fixed seat 13 via a height adjustment mechanism I, the height adjustment mechanism I driving the slide III 25 to move vertically, with a pulley I rotatably mounted on the left end of the slide III 25. 30, with pulley II 31 rotatably mounted on its right end, and pulley I 30 and pulley II 31 connected by belt I 20. A power mechanism I for driving belt I 20 is provided on slide IV 34, the transmission direction of belt I 20 matching the conveying direction of conveyor chain 10. Height adjustment mechanism I drives slide III 25 down until belt I 20 contacts the upper end of glass tube 42; slide IV 34, mounted on slide IV 34 via height adjustment mechanism II, which drives slide IV 34 to move vertically. Pulley IV 39 is rotatably mounted on the left end of slide IV 34, and pulley III 38 is rotatably mounted on its right end, with pulley III 38 and pulley IV 39 connected by belt II 21. A power mechanism II for driving belt II 21 is provided on slide IV 34. The transmission direction of belt 21 matches the conveying direction of conveyor chain 10. Height adjustment mechanism II drives slide 34 to move down until belt II 21 contacts the upper end of glass tube 42. Several lamp heads 11 are mounted on frame 4, spaced apart in the left-right direction, and located on the inner end of conveyor chain 10. Based on the sealing position of glass tube 42, frame drive mechanism drives frame 4 to move back and forth relative to base 1. Chain conveying mechanism is mounted on frame to convey glass tube 42 from rear to front.The sealing lamp is lit, and the burning lamp heats the sealing position of the glass tube 42. When the glass tube 42 is conveyed to the position of the glass tube rotation belt and the glass tube head rotation belt, the height adjustment mechanism I drives the slide III 25 to move down to contact the upper end of the glass tube 42 with the belt I 20, and the height adjustment mechanism II drives the slide IV 34 to move down to contact the upper end of the glass tube 42 with the belt II 21. Since the transmission direction of the belt I 20 and the belt II 21 matches the transmission direction of the conveyor chain 10, the belt I 20 and the belt II 21 press the glass tube 42 tightly onto the conveyor chain at the upper end of the glass tube 42, so that the glass tube 42 can rotate along its axis when conveyed from back to front. The glass tube 42 and the glass tube head are driven to rotate by the belt I 20 and the belt II 21 and stretched in two directions, thus sealing the end of the glass tube during the movement. This invention relates to a device for sealing glass tubes in pharmaceutical glass tube production lines. Installed on the production line, it enables continuous sealing of glass tube ends. The sealing lamp head heats the glass tube to ensure sealing during the stretching process. This improves sealing efficiency, reduces waste tubes during cutting, and enhances the physicochemical properties of the sealed glass tubes when they are subsequently processed into ampoules. Furthermore, it eliminates the need for replacement parts due to variations in glass tube outer diameter.

[0018] In one embodiment of the present invention, the frame drive mechanism includes a screw I 5 rotatably mounted in the base 1. The axis of the screw I 5 is parallel to the length direction of the linear guide rail I 2. The screw I 5 is threadedly connected to the frame 4, and a handwheel I 6 is mounted on the head end of the screw I 5. The handwheel I 6 can easily drive the screw I 5 to rotate. Since the screw I 5 is threadedly connected to the frame 4, the rotation of the screw I 5 causes the frame 4 to move left and right along the linear guide rail I 2, which facilitates the adjustment of the sealing position according to the glass tube 42 of different lengths.

[0019] In one embodiment of the present invention, the chain conveying mechanism includes a passive sprocket 17 rotatably mounted on a frame 4 and a driving sprocket 22 rotatably mounted on the frame 4. The axes of the passive sprocket 17 and the driving sprocket 22 are horizontally arranged in the left-right direction. The passive sprocket 17 and the driving sprocket 22 are connected by a conveying chain 10. A motor 18 is mounted on the frame 4, and the output shaft of the motor 18 is connected to the driving sprocket 22. The rotation of the motor 18 drives the driving sprocket 22 to rotate. Since the passive sprocket 17 and the driving sprocket 22 are connected by the conveying chain 10, the conveying chain 10 is driven to move, conveying the glass tube 42 from the rear end to the front end. The structure is simple and the operation is reliable. Rollers with bearings are installed at intervals on the conveying chain 10 to ensure that the glass tube 42 can rotate and roll during the conveying process on the chain.

[0020] In one embodiment of the present invention, the axis height of the driving sprocket 22 is higher than the axis height of the driven sprocket 17. This allows the glass tube 42 to be conveyed at an angle from low to high as it is transported from the rear end to the front end, ensuring that the glass tube 42 is in close contact with the conveyor chain 10 during transport, thereby preventing the glass tube 42 from moving axially.

[0021] In one embodiment of the present invention, the height adjustment mechanism I includes a linear guide rail III 23 mounted vertically on a slide III 25 and a screw III 29 rotatably mounted in a fixed base 13. A slider III 24 of the linear guide rail III 23 is mounted on the fixed base 13. The axis of the screw III 29 is vertically oriented, and the screw III 29 is threadedly connected to the slide III 25. A handwheel III 28 is mounted on the upper end of the screw III 29. The handwheel III 28 facilitates the rotation of the screw III 29. Because the screw III 29 is threadedly connected to the slide III 25, the rotation of the screw III 29 drives the slide III 25 to move up and down along the slider III 24 using the linear guide rail III 23. The height adjustment mechanism II includes a linear guide rail IV 32 mounted vertically on the slide IV 34 and a screw IV 41 rotatably mounted in the slide IV 34. The slider IV 33 of the linear guide rail IV 32 is mounted on the movable seat 16. The axis of the screw IV 41 is set vertically. The screw IV 41 is threadedly connected to the slide IV 34. A handwheel IV 37 is mounted on the upper end of the screw IV 41, which facilitates the rotation of the screw IV 41. Since the screw IV 41 is threadedly connected to the slide IV 34, the rotation of the screw IV 41 drives the slide IV 34 to move up and down along the slider IV 33 using the linear guide rail IV 32, making adjustment convenient and quick.

[0022] In one embodiment of the present invention, the power mechanism I includes a motor II 26 mounted on a fixed base 13, a driving pulley I 27 mounted on the output shaft of the motor II 26, and a driven pulley I 40 coaxially mounted on pulley I 30 or pulley II 31. The driving pulley I 27 and the driven pulley I 40 are connected by a transmission belt I. When the motor II 26 operates, it drives the driving pulley I 27 to rotate. Since the driving pulley I 27 and the driven pulley I 40 are connected by the transmission belt I, the driving pulley I 30 or pulley II 31 is rotated, thereby driving the belt I 20 to move. The power mechanism II includes a motor III 35 mounted on a slide IV 34, a driving pulley II 36 mounted on the output shaft of the motor III 35, and a driven pulley II 47 coaxially mounted on pulley III 38 or pulley IV 39. The driving pulley II 36 and the driven pulley II 47 are connected by a transmission belt II. When motor Ⅲ 35 is activated, it drives the active pulley Ⅱ 36 to rotate. Since the active pulley Ⅱ 36 and the passive pulley Ⅱ 47 are connected by the transmission belt Ⅱ, the drive pulley Ⅲ 38 or pulley Ⅳ 39 is rotated, thereby driving the belt Ⅱ 21 to move.

[0023] In one embodiment of the present invention, the device further includes a guide rail 8 vertically mounted on the frame 4, a slide block I 7 slidably mounted on the guide rail 8, and a screw II 19 rotatably mounted on the frame 4. The axis of the screw II 19 is vertically oriented, and the screw II 19 is threadedly connected to the slide block I 7. A handwheel II 9 is mounted on the lower end of the screw II 19. The chain conveying mechanism and each lamp head 11 are mounted on the slide block I 7. The handwheel II 9 can easily drive the screw II 19 to rotate. Since the screw II 19 is threadedly connected to the slide block I 7, the slide block I 7 can be driven to move up and down relative to the frame 4 along the guide rail 8, which facilitates the adjustment of the height position of the conveying chain 10 and each lamp head 11, thereby adapting to glass tubes 42 of different diameters.

[0024] In one embodiment of the invention, a bracket 43 is also included. Each lamp holder 11 is mounted on a bracket 34. Connecting plates 44 are horizontally mounted on the left and right ends of the bracket 43 along the front-back direction. Elongated holes 45 are provided in the connecting plates 44 along the front-back direction. Hand-tightened bolts 46 pass through the elongated holes 45 and are screwed into the frame 4. After loosening the hand-tightened bolts 46, the hand-tightened bolts 46 act as guides. The bracket 43 can be finely adjusted in front-back position through the elongated holes 45 under the guidance of the hand-tightened bolts 46, so as to achieve precise adjustment of the sealing position. After adjustment, the hand-tightened bolts 46 can be tightened. The operation is simple and convenient.

[0025] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. 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 device for sealing glass tubes in a pharmaceutical glass tube production line, characterized in that, include: The base (1) has a linear guide rail I (2) installed at its upper end along the left and right directions; The frame (4) is located on the upper end of the base (1) and is mounted on the slider (3) of the linear guide rail (2); A frame drive mechanism is mounted on the base (1) and is used to drive the frame (4) to move left and right along the base (1); A chain conveyor mechanism is mounted on the frame (4) and is used to convey the glass tube (42) from the rear end to the front end; A fixed frame (12) is installed on the upper end of the frame (4). The fixed frame (12) is horizontally arranged in the left and right direction. A fixed seat (13) is fixed on the outer end of the fixed frame (12). A linear guide rail (14) is horizontally installed on the inner end in the left and right direction. A movable seat (16) is installed on the slider (15) of the linear guide rail (14). The slide block Ⅲ (25) is mounted on the fixed base (13) via the height adjustment mechanism Ⅰ. The height adjustment mechanism Ⅰ drives the slide block Ⅲ (25) to move in the vertical direction. The left end of the slide block Ⅲ (25) is rotatably mounted with pulley Ⅰ (30), and the right end is rotatably mounted with pulley Ⅱ (31). The pulley Ⅰ (30) and pulley Ⅱ (31) are connected by belt Ⅰ (20). The slide block Ⅳ (34) is provided with a power mechanism Ⅰ for driving the belt Ⅰ (20) to move. The transmission direction of belt Ⅰ (20) matches the transmission direction of the conveyor chain (10). The height adjustment mechanism Ⅰ drives the slide block Ⅲ (25) to move down until the belt Ⅰ (20) contacts the upper end of the glass tube (42). Slide Ⅳ (34) is mounted on slide Ⅳ (34) via height adjustment mechanism Ⅱ. Height adjustment mechanism Ⅱ drives slide Ⅳ (34) to move vertically. Pulley Ⅳ (39) is rotatably mounted on the left end of slide Ⅳ (34), and pulley Ⅲ (38) is rotatably mounted on its right end. Pulley Ⅲ (38) and pulley Ⅳ (39) are connected by belt Ⅱ (21). Slide Ⅳ (34) is provided with power mechanism Ⅱ for driving belt Ⅱ (21). The transmission direction of belt Ⅱ (21) matches the transmission direction of conveyor chain (10). Height adjustment mechanism Ⅱ drives slide Ⅳ (34) to move down until belt Ⅱ (21) contacts the upper end of glass tube (42); and Several lamp heads (11) are installed on the frame (4), and each lamp head (11) is arranged at intervals in the left and right direction. Each lamp head (11) is located at the inner end of the conveyor chain (10).

2. The device for sealing glass tubes in a pharmaceutical glass tube production line according to claim 1, characterized in that: The frame drive mechanism includes a screw I (5) rotatably mounted in the base (1). The axis of the screw I (5) is parallel to the length direction of the linear guide I (2). The screw I (5) is threadedly connected to the frame (4). A handwheel I (6) is installed at the head end of the screw I (5).

3. The device for sealing glass tubes in a pharmaceutical glass tube production line according to claim 1, characterized in that: The chain conveying mechanism includes a passive sprocket (17) rotatably mounted on the frame (4) and a driving sprocket (22) rotatably mounted on the frame (4). The axes of the passive sprocket (17) and the driving sprocket (22) are horizontally arranged in the left-right direction. The passive sprocket (17) and the driving sprocket (22) are connected by a conveying chain (10). A motor (18) is mounted on the frame (4), and the output shaft of the motor (18) is connected to the driving sprocket (22).

4. The device for sealing glass tubes in a pharmaceutical glass tube production line according to claim 3, characterized in that: The height of the axis of the driving sprocket (22) is higher than the height of the axis of the driven sprocket (17).

5. The device for sealing glass tubes in a pharmaceutical glass tube production line according to claim 1, characterized in that: The height adjustment mechanism I includes a linear guide rail III (23) mounted vertically on a slide III (25) and a screw III (29) rotatably mounted in a fixed seat (13). The slider III (24) of the linear guide rail III (23) is mounted on the fixed seat (13). The axis of the screw III (29) is set vertically. The screw III (29) is threadedly connected to the slide III (25). A handwheel III (28) is mounted on the upper end of the screw III (29).

6. The apparatus for sealing glass tubes in a pharmaceutical glass tube production line according to claim 1, characterized in that: The height adjustment mechanism II includes a linear guide rail IV (32) mounted vertically on a slide block IV (34) and a screw IV (41) rotatably mounted in the slide block IV (34). The slider IV (33) of the linear guide rail IV (32) is mounted on a movable seat (16). The axis of the screw IV (41) is set vertically. The screw IV (41) is threadedly connected to the slide block IV (34). A handwheel IV (37) is mounted on the upper end of the screw IV (41).

7. The apparatus for sealing glass tubes in a pharmaceutical glass tube production line according to claim 1, characterized in that: The power mechanism I includes a motor II (26) mounted on a fixed base (13), a drive pulley I (27) mounted on the output shaft of the motor II (26), and a passive pulley I (40) coaxially mounted on pulley I (30) or pulley II (31). The drive pulley I (27) and the passive pulley I (40) are connected by a transmission belt I.

8. The apparatus for sealing glass tubes in a pharmaceutical glass tube production line according to claim 1, characterized in that: The power mechanism II includes a motor III (35) mounted on a slide IV (34), a drive pulley II (36) mounted on the output shaft of the motor III (35), and a passive pulley II (47) coaxially mounted on pulley III (38) or pulley IV (39). The drive pulley II (36) and the passive pulley II (47) are connected by a transmission belt II.

9. The apparatus for sealing glass tubes in a pharmaceutical glass tube production line according to claim 1, characterized in that: It also includes a guide rail (8) mounted vertically on the frame (4), a slide block I (7) slidably mounted on the guide rail (8), and a screw II (19) rotatably mounted on the frame (4). The axis of the screw II (19) is set vertically. The screw II (19) is threadedly connected to the slide block I (7). A handwheel II (9) is installed at the lower end of the screw II (19). The chain conveyor mechanism and each lamp head (11) are all mounted on the slide block I (7).

10. The apparatus for sealing glass tubes in a pharmaceutical glass tube production line according to claim 1, characterized in that: It also includes a bracket (43), each lamp head (11) is installed on the bracket (34), and the left and right ends of the bracket (43) are respectively horizontally installed with connecting plates (44) in the front and back directions. The connecting plates (44) have elongated holes (45) in the front and back directions. The hand-tightened bolts (46) pass through the elongated holes (45) and are screwed into the frame (4).

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