Adjustable wheel set

Abstract

The utility model discloses an adjustable wheel set, which belongs to the technical field of glass tube forming and comprises a plurality of graphite wheel sets, support frames are arranged at two ends of each graphite wheel set, the graphite wheel sets are fixedly connected with rotating shafts and can rotate relative to the support frames by taking the rotating shafts as axes, adjusting grooves are arranged on the support frames, and the graphite wheel sets are arranged in the adjusting grooves. The rotating shaft is inserted into the adjusting groove, the adjusting groove comprises a vertical section and a plurality of straight sections, and the rotating shaft can be adjusted and moved in the vertical section and the plurality of straight sections of the adjusting groove. According to the graphite wheel set, each straight section corresponds to a glass tube with one diameter, so that when the height of the graphite wheel set is adjusted, only the graphite wheel set needs to be moved to the corresponding straight section according to the diameter of the glass tube, calculation and empirical values are not needed, and the height accuracy of the graphite wheel set is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of glass tube forming technology, and in particular relates to an adjustable wheel set. Background Technology

[0002] In the molding process of medical glass tubes, graphite wheel assemblies serve as key conveying and guiding components. Through their comprehensive characteristics of high temperature resistance, low friction, uniform thermal conductivity, and chemical stability, graphite wheel assemblies achieve the following:

[0003] (1) Stable conveying – avoid slippage or jamming;

[0004] (2) Protect the surface – ensure the glass tube is free of scratches;

[0005] (3) Temperature control optimization - auxiliary molding cooling;

[0006] (4) Long-term reliability - reducing maintenance costs.

[0007] When handling medical glass tubes of different diameters via graphite wheel sets, it is usually necessary to adjust the height of the graphite wheel sets. When the diameter of the glass tube increases, if the height of the graphite wheel sets remains unchanged, the contact area and pressure will increase, which may lead to excessive friction, causing scratches on the surface of the glass tube or excessive wear of the graphite wheel sets. When the diameter of the glass tube decreases, if the height of the graphite wheel sets remains unchanged, the contact pressure will be insufficient, which may cause the glass tube to slide unsteadily or even derail.

[0008] Currently, when processing medical glass tubes of different diameters, it is necessary to determine the height variation of the graphite wheel assembly through formulas or empirical values. However, the "empirical values" of different operators may vary significantly (e.g., some tend to make conservative adjustments, while others prefer aggressive ones), resulting in poor process consistency.

[0009] Therefore, there is an urgent need to design an adjustable wheelset to solve the problems mentioned above. Utility Model Content

[0010] The purpose of this invention is to provide an adjustable wheelset that has the advantages of adjusting the height of the graphite wheelset accurately without relying on manual experience, thus solving the problems mentioned in the background art.

[0011] To achieve the above objectives, the specific technical solution of this utility model for an adjustable wheelset is as follows:

[0012] An adjustable wheel assembly includes multiple graphite wheel assemblies. Each graphite wheel assembly has a support frame at both ends. A rotating shaft is fixedly connected to each graphite wheel assembly. The graphite wheel assembly can rotate relative to the support frame about the rotating shaft as the axis. An adjustment groove is provided on the support frame. The rotating shaft is inserted into the adjustment groove. The adjustment groove includes a vertical section and multiple horizontal sections. The rotating shaft can be adjusted and moved within the vertical section and multiple horizontal sections of the adjustment groove.

[0013] Furthermore, the same end of multiple straight sections is connected to a vertical section so that the rotating shaft can be adjusted horizontally or vertically in the adjustment groove.

[0014] Furthermore, the spacing between multiple straight sections is set according to the diameter of the glass tube. Based on the diameter of the glass tube, the position of the straight section of the rotating shaft in the adjustment groove is adjusted to change the height of the graphite wheel assembly.

[0015] Furthermore, the rotating shaft is inserted into the adjustment groove and extends beyond the adjustment groove.

[0016] Furthermore, an auxiliary component is provided on the rotating shaft. The auxiliary component applies a thrust to the rotating shaft so that when no external force drives the rotating shaft, the rotating shaft is located at the end of the straight section of the adjusting groove away from the vertical section.

[0017] Furthermore, the auxiliary component includes a spring, one end of which is connected to the rotating shaft, and the end of the spring away from the rotating shaft is connected to an auxiliary plate, which can slide relative to the support frame.

[0018] Furthermore, the support frame is provided with a sliding groove, and when the rotating shaft is vertically adjusted in the adjustment groove, the auxiliary plate slides relative to the support frame along the sliding groove.

[0019] Furthermore, a collar is fitted onto the rotating shaft, and the end of the spring away from the auxiliary plate is connected to the collar.

[0020] Furthermore, a connecting rod is fixedly connected to the collar, the connecting rod passes through the auxiliary plate and extends beyond the auxiliary plate, and a spring is sleeved on the connecting rod.

[0021] Furthermore, one end of each connecting rod extends beyond the auxiliary plate and connects to an adjacent collar so that the height of the graphite wheel assembly connected to it is adjusted synchronously when the height of one graphite wheel assembly is adjusted.

[0022] This invention has the following advantages: each straight section corresponds to a glass tube of a certain diameter, so when adjusting the height of the graphite wheel set, it is only necessary to move the graphite wheel set to the corresponding straight section according to the diameter of the glass tube, without the need for calculation or experience, thus ensuring the height accuracy of the graphite wheel set. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the wheel set of this utility model. Figure 1 ;

[0024] Figure 2 This is a schematic diagram of the overall structure of the wheel set of this utility model. Figure 2 ;

[0025] Figure 3 This is a schematic diagram of the structure of each graphite wheel assembly in this utility model;

[0026] Figure 4 This is a schematic diagram of the structure of the present invention, showing the rotating shaft being inserted into the adjusting groove;

[0027] Figure 5 This is an exploded view of the structure of each graphite wheel assembly in this utility model;

[0028] The markings in the diagram are as follows: 1. Graphite wheel assembly; 11. Rotating shaft; 2. Support frame; 21. Auxiliary plate; 22. Adjustment groove; 221. Straight section; 222. Vertical section; 23. Slide groove; 3. Auxiliary component; 31. Connecting rod; 32. Spring; 33. Collar. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

[0031] The following is a reference to the appendix. Figure 1 To be continued Figure 5 This invention describes an adjustable wheel assembly.

[0032] When handling medical glass tubes of different diameters via graphite wheel assemblies, it is usually necessary to adjust the height of the graphite wheel assemblies. When the glass tube diameter increases, if the height of the graphite wheel assemblies remains constant, the contact area and pressure will increase, potentially leading to excessive friction, scratches on the glass tube surface, or excessive wear of the graphite wheel assemblies. Conversely, when the glass tube diameter decreases, if the height of the graphite wheel assemblies remains constant, insufficient contact pressure may cause the glass tube to slide unsteadily or even derail. Furthermore, glass tubes of different diameters have different centers of gravity and rigidity; adjusting the height ensures that they remain axially centered when passing through the graphite wheel assemblies, preventing bending or wobbling due to eccentric forces. Larger diameter glass tubes dissipate heat more slowly; appropriately lowering the height of the graphite wheel assemblies increases the contact area and helps with uniform heat dissipation. Smaller diameter tubes require less contact to avoid localized overcooling.

[0033] Currently, when processing medical glass tubes of different diameters, it is necessary to determine the height variation of the graphite wheel assembly through formulas or empirical values. However, the "empirical values" of different operators may vary significantly (e.g., some tend to make conservative adjustments, while others prefer aggressive ones), resulting in poor process consistency.

[0034] Therefore, this adjustable wheel assembly includes multiple graphite wheel assemblies 1, each graphite wheel assembly 1 having a support frame 2 at both ends. A rotating shaft 11 is fixedly connected to each graphite wheel assembly 1, allowing the graphite wheel assembly 1 to rotate relative to the support frame 2 about the rotating shaft 11. The support frame 2 has an adjustment groove 22, into which the rotating shaft 11 is inserted. The vertical position of the rotating shaft 11 within the adjustment groove 22 is adjusted according to the diameter of the glass tube to change the height of the graphite wheel assembly 1. The adjustment groove 22 includes a vertical section 222 and multiple horizontal sections 221, allowing the rotating shaft 11 to be adjusted within the vertical section 222 and the multiple horizontal sections 221 of the adjustment groove 22. When the rotating shaft 11 is in the straight section 221, the rotating shaft 11 can be adjusted and moved horizontally along the straight section 221. At this time, the rotating shaft 11 cannot be adjusted and moved vertically, so the height of the graphite wheel assembly 1 cannot be adjusted. This ensures that the height of the graphite wheel assembly 1 will not change when the graphite wheel assembly 1 is conveying the glass tube. When the rotating shaft 11 is in the vertical section 222, the rotating shaft 11 can be adjusted and moved vertically in the vertical section 222. This allows the graphite wheel assembly 1 to be adjusted to different positions according to glass tubes of different diameters. After adjusting the position of the graphite wheel assembly 1, the rotating shaft 11 is moved from the vertical section 222 to the straight section 221.

[0035] The graphite wheel assembly 1 is adjusted from the vertical section 222 to the corresponding horizontal section 221, depending on the diameter of the glass tube. Each horizontal section 221 corresponds to a glass tube of a certain diameter. Therefore, when adjusting the height of the graphite wheel assembly 1, it is only necessary to move the graphite wheel assembly 1 to the corresponding horizontal section 221 according to the diameter of the glass tube. No calculation or experience is required, thus ensuring the height accuracy of the graphite wheel assembly 1.

[0036] Specifically, the adjustment groove 22 includes a vertical section 222 and multiple horizontal sections 221. The same end of the multiple horizontal sections 221 is connected to the vertical section 222 so that the rotating shaft 11 can be adjusted horizontally or vertically in the adjustment groove 22. The multiple horizontal sections 221 correspond to multiple glass tubes of different diameters. Each horizontal section 221 corresponds to a glass tube of a certain diameter. After determining the diameter of the glass tube, the rotating shaft 11 is directly moved through the vertical section 222 to the horizontal section 221 that matches the diameter of the glass tube.

[0037] Preferably, each straight section 221 is marked with a corresponding diameter scale, so that after the diameter of the glass tube is determined, the graphite wheel assembly 1 can be accurately and quickly moved to the straight section 221 that matches the diameter of the glass tube by means of the diameter scale.

[0038] Preferably, the spacing between the multiple straight segments 221 is set according to the diameter of the glass tube.

[0039] Specifically, the rotating shaft 11 is inserted into the adjusting groove 22 and extends beyond the adjusting groove 22, thereby facilitating manual movement of the rotating shaft 11 and the graphite wheel assembly 1. Preferably, a hand sleeve is provided at one end of the rotating shaft 11 that extends beyond the adjusting groove 22, and the hand sleeve is fitted onto the rotating shaft 11 to facilitate manual movement of the rotating shaft 11 and the graphite wheel assembly 1.

[0040] Furthermore, an auxiliary component 3 is provided on the rotating shaft 11. The auxiliary component 3 applies a thrust to the rotating shaft 11 so that when no external force drives the rotating shaft 11, the rotating shaft 11 is located at the end of the straight section 221 of the adjusting groove 22 away from the vertical section 222. Specifically, the auxiliary component 3 includes a spring 32, one end of which is connected to the rotating shaft 11, and the end of the spring 32 away from the rotating shaft 11 is connected to an auxiliary plate 21. The auxiliary plate 21 can slide relative to the support frame 2. When no external force drives the rotating shaft 11, the elastic force of the spring 32 always pushes the rotating shaft 11, so that when no external force drives the rotating shaft 11, the rotating shaft 11 is located at the end of the straight section 221 of the adjusting groove 22 away from the vertical section 222.

[0041] Regarding the way in which the auxiliary plate 21 can slide relative to the support frame 2, preferably, the support frame 2 is provided with a sliding groove 23, which is vertically arranged. When the rotating shaft 11 is vertically adjusted in the adjusting groove 22, the auxiliary plate 21 slides relative to the support frame 2 along the sliding groove 23.

[0042] A collar 33 is fitted on the rotating shaft 11. The end of the spring 32 away from the auxiliary plate 21 is connected to the collar 33. The rotating shaft 11 can rotate relative to the collar 33. The connection between the spring 32 and the collar 33 avoids interference between the spring 32 and the rotating shaft 11 when the rotating shaft 11 rotates, as the spring 32 would directly contact the rotating shaft 11.

[0043] A connecting rod 31 is fixedly connected to the collar 33. The connecting rod 31 passes through the auxiliary plate 21 and extends beyond the auxiliary plate 21. The spring 32 is sleeved on the connecting rod 31. By setting the connecting rod 31, the contraction or expansion stroke of the spring 32 is limited, further ensuring the stability of the spring 32.

[0044] Currently, adjusting the height of graphite wheel set 1 requires manual adjustment one graphite wheel set 1 at a time, which is time-consuming and labor-intensive.

[0045] Therefore, at one end of each connecting rod 31 extending beyond the auxiliary plate 21, it is connected to the adjacent collar 33 so that when adjusting the height of one graphite wheel set 1, the height of the graphite wheel set 1 connected to it is adjusted synchronously, saving time and effort. During adjustment, each connected graphite wheel set 1 can move synchronously from the straight section 221 to the vertical section 222, and similarly from the vertical section 222 to the straight section 221. Each connected graphite wheel set 1 moves synchronously.

[0046] The number of adjacent graphite wheel sets 1 can be determined based on actual usage.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An adjustable wheelset, characterized in that, The system includes multiple graphite wheel sets (1), each graphite wheel set (1) having a support frame (2) at both ends. The graphite wheel set (1) is fixedly connected to a rotating shaft (11), and the graphite wheel set (1) can rotate relative to the support frame (2) about the rotating shaft (11) as the axis. The support frame (2) is provided with an adjustment groove (22), and the rotating shaft (11) is inserted into the adjustment groove (22). The adjustment groove (22) includes a vertical section (222) and multiple horizontal sections (221). The rotating shaft (11) can be adjusted and moved in the vertical section (222) and multiple horizontal sections (221) of the adjustment groove (22).

2. The adjustable wheel set according to claim 1, characterized in that, The same end of each of the multiple straight sections (221) is connected to the vertical section (222) so that the rotating shaft (11) can be adjusted horizontally or vertically in the adjusting groove (22).

3. The adjustable wheel set according to claim 2, characterized in that, The spacing between the multiple straight sections (221) is set according to the diameter of the glass tube. The position of the straight section of the rotating shaft (11) in the adjusting groove (22) is adjusted according to the diameter of the glass tube to change the height of the graphite wheel assembly (1).

4. The adjustable wheel set according to claim 1, characterized in that, The rotating shaft (11) is inserted into the adjusting groove (22) and extends beyond the adjusting groove (22).

5. The adjustable wheel set according to claim 1, characterized in that, An auxiliary component (3) is provided on the rotating shaft (11). The auxiliary component (3) applies a thrust to the rotating shaft (11) so that when there is no external force driving the rotating shaft (11), the rotating shaft (11) is located at the end of the straight section (221) of the adjusting groove (22) away from the vertical section (222).

6. The adjustable wheel set according to claim 5, characterized in that, The auxiliary component (3) includes a spring (32), one end of which is connected to a rotating shaft (11), and the end of the spring (32) away from the rotating shaft (11) is connected to an auxiliary plate (21), which can slide relative to the support frame (2).

7. The adjustable wheel set according to claim 6, characterized in that, The support frame (2) is provided with a sliding groove (23). When the rotating shaft (11) is vertically adjusted in the adjusting groove (22), the auxiliary plate (21) slides relative to the support frame (2) along the sliding groove (23).

8. The adjustable wheel set according to claim 6, characterized in that, A collar (33) is fitted on the rotating shaft (11), and the end of the spring (32) away from the auxiliary plate (21) is connected to the collar (33).

9. The adjustable wheel set according to claim 8, characterized in that, A connecting rod (31) is fixedly connected to the collar (33). The connecting rod (31) passes through the auxiliary plate (21) and extends beyond the auxiliary plate (21). The spring (32) is sleeved on the connecting rod (31).

10. The adjustable wheel set according to claim 9, characterized in that, Each of the connecting rods (31) extends beyond the auxiliary plate (21) to one end and connects to the adjacent collar (33) so that when the height of one graphite wheel assembly (1) is adjusted, the height of the graphite wheel assembly (1) connected to it is adjusted synchronously.

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