A rotary position limiting device for glass tube conveying

By using the limiting rollers and drive motor design of the rotary limiting device, the stress of glass tube movement is consumed, solving the problem of glass tube breakage caused by the limiting plate, and achieving precise positioning and high yield of glass tube.

CN224362036UActive Publication Date: 2026-06-16HUNAN KIBING PHARMACEUTICAL MATERIAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN KIBING PHARMACEUTICAL MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-06-27
Publication Date
2026-06-16

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Abstract

The utility model relates to glass tube processing technical field especially is related to a kind of rotation limiting device for glass tube conveying.The device includes limiting mechanism;Limiting mechanism includes rack and limiting roller;Limiting roller is installed in rack, and can rotate along its own axis, and the top of limiting roller is higher than the lowest point of glass tube;Glass tube moves to limiting roller in perpendicular to the axis direction of limiting roller;When glass tube contacts limiting roller, limiting roller rotates under the driving of glass tube, and guides the end of glass tube and limiting roller contact to incline upwards.The rotation limiting device for glass tube conveying provided by the utility model rotates limiting roller under the driving of glass tube when using, and then consumes stress to drive glass tube to move, so that glass tube slows down to stop, thereby solve the problem that glass tube is prone to burst.
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Description

Technical Field

[0001] This utility model relates to the field of glass tube processing technology, and in particular to a rotary limiting device for glass tube conveying. Background Technology

[0002] During the glass tube processing, the graphite wheel drives the slit glass tube to be inserted into the conveying device so that the conveying device can move the glass tube along a set route for subsequent processing. Because the glass tube is lightweight and has a low surface friction coefficient, a limiting device is needed to restrict the distance the glass tube is inserted into the conveying device.

[0003] The limiting device in the existing technology uses a limiting plate. The end of the glass tube collides with the limiting plate and stops, so as to limit the distance of the glass tube inserted into the conveying device. However, because the limiting plate restricts the movement of the glass tube, it will generate impact force, which makes the glass tube easy to break, thus affecting the yield of glass tube processing. Utility Model Content

[0004] This invention provides a rotary limiting device for conveying glass tubes, which solves the problem that the limiting plate generates impact force during the movement of the glass tube, causing the glass tube to easily break and thus affecting the yield of glass tube processing.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] A rotary limiting device for glass tube conveying:

[0007] The device includes a limiting mechanism; the limiting mechanism includes a frame and a limiting roller; the limiting roller is mounted on the frame and can rotate along its own axis, the top of the limiting roller is higher than the lowest point of the glass tube; the glass tube moves toward the limiting roller in a direction perpendicular to the axis of the limiting roller; when the glass tube contacts the limiting roller, the limiting roller rotates under the drive of the glass tube and guides the end of the glass tube in contact with the limiting roller to tilt upward.

[0008] Furthermore, the limiting roller includes a limiting section and a guiding section; the limiting section is cylindrical, and its top is higher than the lowest point of the glass tube; the guiding section is conical, including a large-diameter end and a small-diameter end; the large-diameter end is connected to the limiting section; the guiding section is configured to guide the glass tube back to horizontal through the conical surface.

[0009] Furthermore, the limiting mechanism also includes a drive motor; the drive motor is mounted on the frame, and its rotation shaft is connected to the limiting roller; the drive motor drives the limiting roller to rotate in the opposite direction to the movement direction of the glass tube, so as to apply a force to the glass tube opposite to its movement direction.

[0010] Furthermore, the limiting mechanism also includes a ranging element; the ranging element is mounted on the frame and its ranging end faces the glass tube; the ranging element is electrically connected to the drive motor and is configured to adjust the speed of the drive motor according to the detected position information of the glass tube.

[0011] Furthermore, the limiting mechanism also includes a lifting bracket; one end of the lifting bracket is connected to the ranging element, the other end is installed on the frame, and it can move in the vertical direction.

[0012] Furthermore, it also includes a positioning mechanism; the positioning mechanism is connected to the frame and is used to drive the frame to move in the vertical direction.

[0013] Furthermore, the adjustment mechanism includes a base plate, a lifting screw, and a lifting nut; one end of the lifting screw is connected to the base plate, and the other end is slidably inserted into the frame; the lifting nut is screwed onto the lifting screw and abuts against the frame.

[0014] Furthermore, the top of the base plate is provided with a strip-shaped mounting hole for adjusting its horizontal position during the installation process.

[0015] Furthermore, the limiting roller includes a wheel body and an elastic sleeve; the elastic sleeve is fitted onto the outer surface of the wheel body.

[0016] Furthermore, the limiting roller also includes a deflection shaft; both ends of the deflection shaft are inserted into the frame and rotatably connected to the frame.

[0017] The beneficial effects of the rotary limiting device for glass tube conveying in this invention are analyzed as follows:

[0018] The device includes a limiting mechanism; the limiting mechanism includes a frame and a limiting roller; the limiting roller is mounted on the frame and can rotate along its own axis, with the top of the limiting roller being higher than the lowest point of the glass tube; the glass tube moves toward the limiting roller in a direction perpendicular to the axis of the limiting roller; when the glass tube contacts the limiting roller, the limiting roller rotates under the drive of the glass tube and guides the end of the glass tube in contact with the limiting roller to tilt upward.

[0019] The rotary limiting device for glass tube conveying provided by this utility model, when in use, sets the top of the limiting roller higher than the lowest point of the glass tube, so that the limiting roller rotates under the drive of the glass tube, thereby consuming the stress driving the glass tube to move, causing the glass tube to decelerate to a stop, thus solving the problem that the glass tube is prone to breakage.

[0020] In addition, by setting the top of the limiting roller higher than the lowest point of the glass tube, the limiting roller applies an upward supporting force to the glass tube, thereby guiding the glass tube to tilt and further applying resistance to the glass tube. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments or related technologies of this utility model, the drawings used in the description of the specific embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A schematic diagram of the structure of the rotating limiting device for glass tube conveying provided in this embodiment of the utility model;

[0023] Figure 2 A front view of the rotating limiting device for glass tube conveying provided in this embodiment of the utility model;

[0024] Figure 3 Left view of the rotary limiting device for glass tube conveying provided in this embodiment of the utility model;

[0025] Figure 4 Right view of a rotating limiting device for transporting glass tubes provided in this embodiment of the present invention.

[0026] icon:

[0027] 100-Limiting mechanism; 110-Frame; 120-Limiting roller; 121-Wheel body; 122-Elastic sleeve; 123-Deflection shaft; 130-Drive motor; 140-Distance measuring element; 150-Lifting bracket; 200-Adjusting mechanism; 210-Base plate; 211-Strip mounting hole; 220-Lifting screw; 230-Lifting nut. Detailed Implementation

[0028] Because the limiting plate restricts the movement of the glass tube, it generates impact force, which makes the glass tube prone to breakage, thus affecting the yield rate of glass tube processing.

[0029] In view of this, the present solution provides a rotary limiting device for glass tube conveying, including a limiting mechanism 100.

[0030] The following combination Figures 1-4 The structure and shape of the rotary limiting device used for glass tube conveying are described in detail:

[0031] The limiting mechanism 100 includes a frame 110 and a limiting roller 120. The limiting roller 120 is mounted on the frame 110 and can rotate along its own axis. The top of the limiting roller 120 is higher than the lowest point of the glass tube. The glass tube moves toward the limiting roller 120 in a direction perpendicular to the axis of the limiting roller 120. When the glass tube contacts the limiting roller 120, the limiting roller 120 rotates under the drive of the glass tube and guides the end of the glass tube in contact with the limiting roller 120 to tilt upward.

[0032] In this embodiment, by setting the top of the limiting roller 120 to be higher than the lowest point of the glass tube, the limiting roller 120 is rotated under the drive of the glass tube, thereby consuming the stress driving the glass tube to move and causing the glass tube to decelerate to a stop, thus solving the problem of easy breakage of the glass tube during the limiting process.

[0033] In addition, by setting the top of the limiting roller 120 to be higher than the lowest point of the glass tube, the limiting roller 120 applies an upward supporting force to the glass tube, thereby guiding the glass tube to tilt and further applying resistance to the glass tube.

[0034] To reduce the impact on the glass tube during the reset process:

[0035] like Figure 2 As shown, the limiting roller includes a limiting section and a guiding section; the limiting section is cylindrical and its top is higher than the lowest point of the glass tube; the guiding section is conical and includes a large-diameter end and a small-diameter end; the large-diameter end is connected to the limiting section; the guiding section is configured to guide the glass tube back to horizontal through the conical surface.

[0036] In this embodiment, after the glass tube inserted into the conveying device contacts the limiting section of the limiting roller 120 and stops moving, the conveying device drives the glass tube to move along the limiting roller 120 so that the glass tube moves from the limiting section to the guiding section, thereby reducing the height of the contact end between the glass tube and the limiting roller 120, so as to guide the tilted glass tube to return to horizontal, thereby reducing the impact on the glass tube during the reset process.

[0037] To precisely limit the distance the glass tube is inserted into the conveying device:

[0038] like Figure 2 As shown, the limiting mechanism 100 also includes a drive motor 130; the drive motor 130 is mounted on the frame 110, and its rotation shaft is connected to the limiting roller 120; the drive motor 130 drives the limiting roller 120 to rotate in the opposite direction of the glass tube's movement, so as to apply a force to the glass tube that is opposite to its movement direction.

[0039] In this embodiment, the drive motor 130 drives the limiting roller 120 to rotate, so as to apply a force opposite to the expected direction of movement to the glass tube, thereby slowing down the glass tube to a stop; during the process of the conveying device driving the glass tube to return to a horizontal position, the limiting roller 120 drives the glass tube to move in the opposite direction, so as to disengage the glass tube from the limiting roller 120, thereby achieving precise limitation of the distance the glass tube is inserted into the conveying device.

[0040] To prevent the glass tube from failing to disengage from the limit roller 120:

[0041] like Figure 2 As shown, the limiting mechanism 100 also includes a ranging element 140; the ranging element 140 is mounted on the frame 110 and its ranging end faces the glass tube; the ranging element 140 is electrically connected to the drive motor 130 and is configured to adjust the speed of the drive motor 130 according to the detected position information of the glass tube.

[0042] In this embodiment, when the glass tube moves a distance exceeding the threshold along the length of the limiting roller 120, the ranging element 140 is triggered, so that the drive motor 130 drives the limiting roller 120 to rotate faster, thereby causing the limiting roller 120 to pull the glass tube away from it. The ranging element 140 includes, but is not limited to, a laser rangefinder and a proximity switch.

[0043] To adjust the measuring position of the ranging element 140:

[0044] like Figure 3 As shown, the limiting mechanism 100 also includes a lifting bracket 150; one end of the lifting bracket 150 is connected to the ranging element 140, the other end is installed on the frame 110, and it can move in the vertical direction.

[0045] To move the lifting support 150 vertically:

[0046] like Figure 3 As shown, the lifting bracket 150 is installed on the frame 110 by lifting bolts and nuts; the frame 110 has a strip-shaped lifting hole on its surface; the lifting bolt is inserted into the strip-shaped lifting hole and can move along the strip-shaped lifting hole; by driving the lifting bolt to move along the lifting hole, the lifting bracket 150 moves in the vertical direction. After the lifting bracket 150 moves to the set position, the lifting bracket 150 is fixed to the frame 110 by the lifting bolts and nuts.

[0047] In this embodiment, the lifting bracket 150 drives the ranging element 140 to move in the vertical direction so that the ranging end of the ranging element 140 is aligned with the threshold position on the limiting roller 120.

[0048] To accommodate glass tubes of different outer diameters:

[0049] like Figure 2As shown, it also includes a positioning mechanism 200; the positioning mechanism 200 is connected to the frame 110 and is used to drive the frame 110 to move in the vertical direction.

[0050] In this embodiment, the lowest point is determined based on the outer diameter of the glass tube and the size of the annular groove on the graphite wheel. Then, the tilt height is determined based on the characteristics of the glass tube. Finally, the adjusting mechanism 200 drives the limiting mechanism 100 to move vertically so that the minimum distance between the top of the limiting roller 120 and the lowest point of the glass tube reaches the set tilt height.

[0051] In order to enable the adjustment mechanism 200 to drive the frame 110 to move vertically:

[0052] like Figure 4 As shown, the adjustment mechanism 200 includes a base plate 210, a lifting screw 220 and a lifting nut 230; one end of the lifting screw 220 is connected to the base plate 210, and the other end is slidably inserted into the frame 110; the lifting nut 230 is screwed onto the lifting screw 220 and abuts against the frame 110.

[0053] In this embodiment, by rotating the lifting nut 230, the lifting nut 230 drives the frame 110 to move along the lifting screw 220 under the engagement of the thread, thereby driving the limit roller 120 to move.

[0054] To align the limiting section of the limiting roller 120 with the glass tube insertion area:

[0055] like Figure 1 As shown, a strip-shaped mounting hole 211 is provided on the top of the base plate 210 for adjusting its horizontal position during the installation process.

[0056] In this embodiment, the base plate 210 is fixed in a set position by mounting bolts. The mounting bolts are inserted into the strip mounting hole 211 and can move along the strip mounting hole 211. By driving the strip mounting hole 211 to move along the mounting bolts, the limiting section of the limiting roller 120 is aligned with the glass tube insertion area.

[0057] To reduce the impact on the glass tube during contact with the limiting roller 120:

[0058] like Figure 4 As shown, the limiting roller 120 includes a wheel body 121 and an elastic sleeve 122; the elastic sleeve 122 is fitted onto the outer surface of the wheel body 121.

[0059] In this embodiment, the glass tube contacts the limiting roller 120 so that the elastic sleeve 122 undergoes elastic deformation, thereby buffering and reducing the impact force generated during the contact between the glass tube and the limiting roller 120.

[0060] In addition, the elastic sleeve 122 reduces the distance between the limiting section of the limiting roller 120 and the lowest point of the glass tube by elastic deformation, thereby reducing the impact on the glass tube. After the glass tube moves onto the elastic sleeve 122, the elastic sleeve 122 restores its deformation to make the glass tube tilt at a set angle.

[0061] To reduce the probability of limit roller 120 deformation failure:

[0062] like Figure 2 As shown, the limiting roller 120 also includes a deflection shaft 123; both ends of the deflection shaft 123 are inserted into the frame 110 and are rotatably connected to the frame 110.

[0063] In this embodiment, due to the high temperature in the glass tube production environment, the limiting roller 120 is prone to deformation. By rotating both ends of the deflection shaft 123 and inserting it into the frame 110, both ends of the deflection shaft 123 are supported, thereby reducing the probability of deformation failure of the limiting roller 120.

[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A rotary limiting device for conveying glass tubes, characterized in that: Includes a limiting mechanism (100); The limiting mechanism (100) includes a frame (110) and limiting rollers (120); The limiting roller (120) is mounted on the frame (110) and can rotate along its own axis. The top of the limiting roller (120) is higher than the lowest point of the glass tube. The glass tube moves toward the limiting roller (120) in a direction perpendicular to the axis of the limiting roller (120); When the glass tube comes into contact with the limiting roller (120), the limiting roller (120) rotates under the drive of the glass tube and guides the end of the glass tube that is in contact with the limiting roller (120) to tilt upward.

2. The rotary limiting device for glass tube conveying according to claim 1, characterized in that: The limiting roller (120) includes a limiting section and a guiding section; The limiting section is cylindrical, and its top is higher than the lowest point of the glass tube; The guide section is tapered, including a large-diameter end and a small-diameter end; the large-diameter end is connected to the limiting section; The guide section is configured to guide the glass tube back to horizontal via a tapered surface.

3. The rotary limiting device for glass tube conveying according to claim 2, characterized in that: The limiting mechanism (100) also includes a drive motor (130); The drive motor (130) is mounted on the frame (110), and its rotation shaft is connected to the limiting roller (120); The drive motor (130) drives the limiting roller (120) to rotate in the opposite direction of the glass tube's movement, so as to apply a force to the glass tube that is opposite to its movement direction.

4. The rotary limiting device for glass tube conveying according to claim 3, characterized in that: The limiting mechanism (100) also includes a ranging element (140); The ranging element (140) is mounted on the frame (110) with its ranging end facing the glass tube; The ranging element (140) is electrically connected to the drive motor (130) and is configured to adjust the rotational speed of the drive motor (130) according to the detected position information of the glass tube.

5. The rotary limiting device for glass tube conveying according to claim 4, characterized in that: The limiting mechanism (100) also includes a lifting bracket (150); One end of the lifting bracket (150) is connected to the ranging element (140), and the other end is installed on the frame (110), and can move in the vertical direction.

6. The rotary limiting device for glass tube conveying according to claim 5, characterized in that: It also includes a positioning mechanism (200); The adjustment mechanism (200) is connected to the frame (110) and is used to drive the frame (110) to move in the vertical direction.

7. The rotary limiting device for glass tube conveying according to claim 6, characterized in that: The adjustment mechanism (200) includes a base plate (210), a lifting screw (220), and a lifting nut (230); One end of the lifting screw (220) is connected to the base plate (210), and the other end is slidably inserted into the frame (110); The lifting nut (230) is screwed onto the lifting screw (220) and abuts against the frame (110).

8. The rotary limiting device for glass tube conveying according to claim 7, characterized in that: The top of the base plate (210) is provided with a strip-shaped mounting hole (211) for adjusting its horizontal position during the installation of the base plate (210).

9. The rotary limiting device for glass tube conveying according to claim 8, characterized in that: The limiting roller (120) includes a wheel body (121) and an elastic sleeve (122); The elastic sleeve (122) is fitted onto the outer surface of the wheel body (121).

10. The rotary limiting device for glass tube conveying according to claim 9, characterized in that: The limiting roller (120) also includes a deflection shaft (123); Both ends of the deflection shaft (123) are inserted into the frame (110) and are rotatably connected to the frame (110).