Feeding device for drawing quartz glass tube and drawing device
By adopting a power module design in the quartz glass tube production equipment, and using two drive units to control the high-speed and low-speed movement of the quartz mother material respectively, the problem of poor accuracy of the feeding device in the existing technology is solved, and high-precision quartz glass tube production is realized.
Patent Information
- Application Number
- CN202423230403.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing quartz glass tube production equipment requires a relatively high lifting speed when installing quartz tube master material, but requires an extremely slow speed when drawing, resulting in poor precision of the feeding device and affecting the product forming size and accuracy.
The system adopts a power module design, which includes two cooperating drive units, used to control the movement speed of the quartz mother material at different processes. The first drive unit achieves high-speed movement, while the second drive unit achieves low-speed, high-precision movement, thus meeting the speed requirements of different processes.
This improved the production quality of quartz glass tubes, ensuring high-precision feeding in both high-speed and low-speed processes, and enhancing the size and accuracy of the products.
Smart Images
Figure CN223793053U_ABST
Abstract
Description
Technical Field
[0001] This disclosure generally relates to the field of quartz glass tube drawing equipment, and specifically to a feeding device and a drawing device for drawing quartz glass tubes. Background Technology
[0002] Quartz glass tubes (rods) are a type of special industrial technical glass made primarily from high-purity silicon dioxide. Due to their unique physical and chemical properties, they are widely used in many fields, such as lighting, heating, and the semiconductor industry.
[0003] Currently, in the production process of quartz glass tubes (rods), traditional equipment uses a transmission method that combines a servo motor and a reducer. The reduction ratio, single output speed, and speed accuracy of this method are all related to the servo motor. However, during quartz tube production, a relatively high lifting speed (above 2000 mm / min) is required when installing the quartz tube base material, while the drawing process requires the feeding device to operate at an extremely slow speed (below 1 mm / min), and high operational accuracy is also required.
[0004] Generally, to balance the operating speed of the two processes mentioned above, the operating accuracy of the servo motor at extremely slow speeds is sacrificed. This results in poor accuracy of the feeding mechanism in the drawing device, affecting the forming size and accuracy of the quartz glass tube. Therefore, we propose a novel feeding device for drawing quartz glass tubes. Utility Model Content
[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a feeding device and a drawing device for drawing quartz glass tubes.
[0006] In a first aspect, this application provides a feeding device for drawing quartz glass tubes, comprising:
[0007] The feeding device body has a feeding installation station for installing quartz parent material;
[0008] The feeding device body also has a power module for driving the quartz parent material to move along a preset feeding direction; the power module includes: two cooperating first driving units and second driving units.
[0009] The power module has a first working mode and a second working mode; the first working mode and the second working mode are respectively used to control the movement speed of the quartz mother material at different processes.
[0010] In the first working mode, the first drive unit controls the movement of the quartz matrix, and in the second working mode, the second drive unit controls the movement of the quartz matrix.
[0011] According to the technical solution provided in this application, the feeding device body includes:
[0012] The support frame has two linear guide rails arranged along the preset feeding direction on its side.
[0013] A hoisting assembly is provided, on which the quartz base material is mounted; one end of the hoisting assembly is connected to the output end of the power module for driving the hoisting assembly to slide along the linear guide rail; the hoisting assembly forms the material feeding and installation station.
[0014] According to the technical solution provided in this application, the power module includes: a first coupling and a commutator connected by transmission; the first coupling is connected by a lead screw, and the hoisting assembly is externally threaded to the lead screw; the first drive unit and the second drive unit are respectively connected to the commutator by transmission.
[0015] According to the technical solution provided in this application, the first drive unit includes: a first motor and a second coupling connected in transmission; the second coupling is used for transmission connection with the commutator;
[0016] The second drive unit includes a second motor, a reducer, and an electromagnetic clutch connected in sequence; the electromagnetic clutch is used to drive the commutator.
[0017] According to the technical solution provided in this application, the different processes include at least: a hoisting process and a material feeding process;
[0018] During the hoisting process, the electromagnetic clutch is in the disengaged state, and the first motor controls the hoisting of the quartz mother material to the designated position through the commutator;
[0019] During the feeding process, the electromagnetic clutch is in an engaged state, and the second motor controls the quartz mother material to move along the preset feeding direction through the reducer and the commutator.
[0020] Secondly, this application provides a drawing device that uses the above-mentioned feeding device and further includes a furnace, wherein the feeding device body is suspended above the furnace;
[0021] The furnace has a heating channel in the middle, which is used to heat the quartz parent material fed into the heating channel by the feeding device body to a molten state.
[0022] According to the technical solution provided in this application, the drawing device further includes: a traction wheel set, which is located below the furnace;
[0023] The traction wheel assembly includes at least two rotatable traction wheels, which are used to pull the molten quartz matrix obtained after passing through the heating channel to produce quartz glass tubes of corresponding size and specifications.
[0024] In summary, this technical solution specifically discloses a feeding device and a drawing device for drawing quartz glass tubes. The feeding device includes a feeding device body with a feeding installation station for installing quartz master material. The feeding device body also has a power module for driving the quartz master material to move along a preset feeding direction. The power module includes two cooperating first driving units and second driving units. The power module has a first working mode and a second working mode. The first working mode and the second working mode are respectively used to control the movement speed of the quartz master material at different processes. In the first working mode, the first driving unit controls the movement of the quartz master material, and in the second working mode, the second driving unit controls the movement of the quartz master material.
[0025] Existing drawing devices cannot meet the speed requirements of quartz glass tubes during drawing and feeding, ultimately affecting product quality. In the feeding device body of this application, the power module driving the quartz mother material has a first working mode and a second working mode, which can be used to control the movement speed of the quartz mother material at different processes. This not only speeds up the production pace but also provides a low-speed, high-precision conveying environment for the quartz glass tubes during drawing and feeding, improving product quality. Attached Figure Description
[0026] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0027] Figure 1 This is a schematic diagram of a feeding device for drawing quartz glass tubes.
[0028] Figure 2 This is a schematic diagram of the power module in a feeding device for drawing quartz glass tubes.
[0029] The following are the labeling elements in the diagram: 1. Feeding device body; 2. Quartz base material; 3. Power module; 31. First drive unit; 32. Second drive unit; 33. First coupling; 34. Commutator; 35. Lead screw; 36. First motor; 37. Second coupling; 38. Second motor; 39. Reducer; 40. Electromagnetic clutch; 4. Furnace; 41. Heating channel; 5. Support frame; 6. Linear guide rail; 7. Lifting assembly; 71. Extension rod; 8. Traction wheel. Detailed Implementation
[0030] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.
[0031] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0032] Example 1
[0033] To make the technical solutions of the embodiments of this application clearer and easier to understand, the application background of the embodiments of this application is introduced below.
[0034] Quartz glass tubes (rods) are a type of special industrial technical glass made primarily from high-purity silicon dioxide. Due to their unique physical and chemical properties, they are widely used in many fields, such as lighting, heating, and the semiconductor industry.
[0035] Currently, in the production of quartz glass tubes (rods), traditional equipment uses a transmission method combining a servo motor and a reducer. In this method, the reduction ratio and single output speed, as well as the speed accuracy, are related to the servo motor. However, during quartz tube production, a relatively high lifting speed (above 2000 mm / min) is required when installing the quartz tube base material, while the drawing process requires the feeding device to operate at an extremely slow speed (below 1 mm / min), with high precision requirements. Existing single-reduction-ratio power output devices, in order to balance the operating speeds of these two processes, sacrifice the operating accuracy of the servo motor at extremely slow speeds. This fails to meet the speed requirements for feeding during quartz glass tube drawing, resulting in unstable product dimensions.
[0036] In view of this, the embodiments of this application design a feeding device for drawing quartz glass tubes with a single-axis power module capable of both high and low speed output, based on the aforementioned problems. This ensures both high-speed and low-speed operation of the feeding device, while also meeting the accuracy requirements. For details, please refer to... Figure 1 The schematic diagram shown in this embodiment illustrates a feeding device for drawing quartz glass tubes, comprising:
[0037] The feeding device body 1 has a feeding installation station for installing the quartz mother material 2.
[0038] The feeding device body 1 also has a power module 3 for driving the quartz mother material 2 to move along a preset feeding direction; the power module 3 includes: two cooperating first drive units 31 and second drive units 32.
[0039] The power module 3 has a first working mode and a second working mode; the first working mode and the second working mode are respectively used to control the moving speed of the quartz mother material 2 at different processes;
[0040] In the first working mode, the first drive unit 31 controls the movement of the quartz mother material 2, and in the second working mode, the second drive unit 32 controls the movement of the quartz mother material 2.
[0041] In this embodiment, the feeding device body 1 has a feeding installation station for feeding the quartz mother material 2 for subsequent drawing and forming production. However, since the moving speed of the quartz mother material 2 varies greatly in different processes, such as the aforementioned lifting and subsequent feeding, the power module 3 for driving the movement of the quartz mother material 2 in the feeding device body 1 has two cooperating first drive units 31 and second drive units 32. Different drive units can output corresponding high and low speeds in different processes.
[0042] See Figure 1 In a preferred embodiment, the feeding device body 1 includes:
[0043] The support frame 5 has two linear guide rails 6 arranged along the preset feeding direction on its side.
[0044] The hoisting assembly 7 has a material feeding and installation station located on it, and the quartz mother material 2 is installed on the hoisting assembly 7. One end of the hoisting assembly 7 is connected to the output end of the power module 3 for driving the hoisting assembly 7 to slide along the linear guide rail 6.
[0045] Specifically, the support frame 5 is a component that supports and guides the movement of the hoisting assembly 7, and a hoisting assembly with a feeding and installation station is provided on it; the hoisting assembly 7 is a component used to hoist the quartz mother material 2, and the hoisting assembly 7 is used to drive the hoisted quartz mother material 2 to move along the linear guide rail 6; the hoisting assembly 7 here can be a component with a hook or clamp to fix the quartz mother material 2, and its structure is not specifically limited here.
[0046] It should be noted that the front end of the hoisting assembly 7 is fixed to the quartz mother material 2 by an extension rod 71. The length of the extension rod 71 is sufficient to allow the installed quartz mother material 2 to be completely fed into the furnace 4 located below the feeding device body 1 before the hoisting assembly 7 reaches the thread of the linear guide rail 6. The lengths of the linear guide rail 6 and the extension rod 71 can also stably and conveniently ensure the hoisting and feeding of the quartz mother material 2 into the furnace 4. Further details will not be elaborated here.
[0047] See Figure 2In a preferred embodiment, the power module 3 includes: a first coupling 33 and a commutator 34 that are connected by transmission; the first coupling 33 is connected by a lead screw 35, and the hoisting assembly 7 is externally threaded to the lead screw 35; the first drive unit 31 and the second drive unit 32 are respectively connected by transmission to the commutator 34.
[0048] In the power module 3, the lead screw 35 that drives the hoisting assembly 7 is connected to the first coupling 33 and the commutator 34. The commutator 34 can connect multiple motors to work together to achieve a specific function. The first coupling 33 is used to transmit the power output from the commutator 34 to the lead screw 35 to drive the lead screw 35 to rotate, thereby driving the hoisting assembly 7 on it to reciprocate along the linear guide rail 6.
[0049] See Figure 1 and Figure 2 In a preferred embodiment, the first drive unit 31 includes: a first motor 36 and a second coupling 37 that are connected in a transmission connection; the second coupling 37 is used to be connected in a transmission connection with the commutator 34.
[0050] The second drive unit 32 includes a second motor 38, a reducer 39, and an electromagnetic clutch 40 connected in sequence; the electromagnetic clutch 40 is used to drive the commutator 34.
[0051] Here, the first drive unit 31 outputs high speed to meet the high-speed movement requirements of the drawing device and accelerate the production pace. For example, as mentioned above, when installing the quartz tube mother material 2 during quartz tube production, a large lifting speed (above 2000mm / min) is required. The first drive unit 31 can be directly driven by the first motor 36, and the power is transmitted to the commutator 34 through the second coupling 37. Since the electromagnetic clutch 40 is disengaged at this time, the power is transmitted only through the output shaft of the first motor 36, achieving high-speed output. The second drive unit 32 outputs low speed to meet the low-speed movement requirements of the drawing device, providing higher running accuracy for conveying the quartz mother material 2 and improving the product dimensional quality. The second drive unit 32 is driven by the second motor 38, and the power is transmitted to the reducer 39 and then to the commutator 34. Since the electromagnetic clutch 40 is engaged at this time, the first motor 36 moves accordingly, and the output shaft speed is the speed of the second motor 37 after passing through the reducer 39, thereby achieving ultra-low speed and high-precision operation.
[0052] Furthermore, considering the actual motion scenario, the above-mentioned different processes include at least: hoisting process and material feeding process;
[0053] During the hoisting process, the electromagnetic clutch 40 is in the disengaged state, and the first motor 36 controls the quartz mother material 2 to be hoisted to the designated position through the commutator 34;
[0054] During the feeding process, the electromagnetic clutch 40 is in the engaged state, and the second motor 38 controls the quartz mother material 2 to move along the preset feeding direction through the reducer 39 and the commutator 34.
[0055] Specifically, in the hoisting of the quartz mother material 2, after the quartz mother material 2 is installed on the hoisting assembly 7, the first motor 36 transmits power to the commutator 34 through the second coupling 37. Then, the commutator 34 transmits its power to the first coupling 33, which drives the lead screw 35 to rotate. At this time, under the drive of the first motor 36, the hoisting assembly 7 can quickly and stably hoist the quartz mother material 2 to the designated position, which can be above the furnace 4. After entering the feeding process, that is, after the process of feeding the quartz mother material 2 into the furnace 4, the electromagnetic clutch 40 is controlled to engage and the potential energy of the first motor 36 is cut off. At this time, the power of the second motor 38 is transmitted to the commutator 34 through the reducer 39. The power received by the first coupling 33 is output by the second motor 38, so that the lead screw 35 can rotate at a low speed and drive the hoisting assembly 7 to slowly feed the quartz mother material 2 into the furnace 4 in a direction closer to the furnace 4.
[0056] Based on the above description, this application proposes a feeding device for drawing quartz glass tubes, the specific working principle of which is as follows:
[0057] After the quartz mother material 2 is installed onto the hoisting assembly 7, the power module's control terminal controls the first motor 36 to output a specified speed via the PLC, and transmits the power to the commutator 34 via the second coupling 37. The commutator 34 then transmits the power to the first coupling 33, which drives the lead screw 35 to rotate at high speed. At this time, the hoisting assembly 7, driven by the first motor 36, quickly lifts the quartz mother material 2 above the furnace 4. Subsequently, in the feeding process, the electromagnetic clutch 40 is engaged and cut off by the PLC. The potential energy of the first motor 36 is used to transmit the power of the second motor 38 to the commutator 34 via the reducer 39. After receiving the power output from the second motor 38, the first coupling 33 can rotate the lead screw 35 at a low speed, and drive the hoisting assembly 7 to slowly feed the quartz mother material 2 into the furnace 4 towards the direction of the furnace 4. The quartz mother material 2 is heated to a molten state. Under the continuous movement of the hoisting assembly 7, the molten quartz mother material 2 enters between the two traction wheels 8 and is drawn into a quartz glass tube of a specific specification and size.
[0058] Example 2
[0059] Based on the feeding device for drawing quartz glass tubes proposed in Embodiment 1, this application proposes a drawing device, which further includes: a furnace 4, with the feeding device body 1 suspended above the furnace 4; the furnace 4 has a heating channel 41 in the middle, used to heat the quartz parent material 2 entering the heating channel 41 to a molten state.
[0060] The furnace 4 is a component used to heat the quartz parent material 2 to a molten state. A heating channel 41 is formed in the middle of the furnace 4 to accommodate the quartz parent material 2. The quartz parent material 2 is fed into the furnace 4 by the feeding device body 1 above the furnace 4, and the quartz parent material 2 is heated at the heating channel 41 and turns into a molten state. For example, the furnace 4 can be heated by arranging graphite electrode rods or thermocouples, etc., and the current quartz glass continuous melting furnace can be selected.
[0061] See Figure 1 In a preferred embodiment, the drawing device further includes a traction wheel set located below the furnace 4; the traction wheel set includes at least two rotatable traction wheels 8, which are used to draw the molten quartz mother material 2 obtained after passing through the heating channel 41 to produce quartz glass tubes of corresponding size and specifications.
[0062] The molten quartz mother material 2 obtained in furnace 4 can be pulled by two rotating and adjustable traction wheels 8. Combined with the precise feeding speed provided by the matching feeding device body 1 and the rotation speed of the traction wheels 8 themselves, the pulled quartz glass tube can achieve a specific outer diameter and wall thickness, thereby improving the product quality of the quartz glass tube.
[0063] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.
Claims
1. A feeding device for drawing quartz glass tubes, characterized in that, include: The feeding device body (1) has a feeding installation station for installing quartz mother material (2). The feeding device body (1) also has a power module (3) for driving the quartz mother material (2) to move along a preset feeding direction; the power module (3) includes: two cooperating first driving units (31) and second driving units (32). The power module (3) has a first working mode and a second working mode; the first working mode and the second working mode are respectively used to control the speed of the quartz mother material (2) at different processes; In the first working mode, the first driving unit (31) controls the movement of the quartz mother material (2), and in the second working mode, the second driving unit (32) controls the movement of the quartz mother material (2).
2. The feeding device for drawing quartz glass tubes according to claim 1, characterized in that, The feeding device body (1) includes: Support frame (5), the side of the support frame (5) is provided with two linear guide rails (6) arranged along the preset feeding direction; The hoisting assembly (7) is on which the quartz mother material (2) is installed; one end of the hoisting assembly (7) is connected to the output end of the power module (3) for driving the hoisting assembly (7) to slide along the linear guide rail (6); the hoisting assembly (7) forms the material feeding and installation station.
3. The feeding device for drawing quartz glass tubes according to claim 2, characterized in that, The power module (3) includes: a first coupling (33) and a commutator (34) for transmission connection; the first coupling (33) is connected to a lead screw (35) for transmission connection, and the hoisting assembly (7) is externally threaded to the lead screw (35); the first drive unit (31) and the second drive unit (32) are respectively connected to the commutator (34) for transmission connection.
4. The feeding device for drawing quartz glass tubes according to claim 3, characterized in that, The first drive unit (31) includes: a first motor (36) and a second coupling (37) connected in transmission; the second coupling (37) is used to be connected in transmission with the commutator (34); The second drive unit (32) includes: a second motor (38), a reducer (39) and an electromagnetic clutch (40) connected in sequence; the electromagnetic clutch (40) is used to drive the commutator (34).
5. The feeding device for drawing quartz glass tubes according to claim 4, characterized in that, The different processes include at least: hoisting process and material feeding process; During the hoisting process, the electromagnetic clutch (40) is in the disengaged state, and the first motor (36) controls the quartz mother material (2) to be hoisted to the designated position through the commutator (34); In the feeding process, the electromagnetic clutch (40) is in the engaged state, and the second motor (38) controls the quartz mother material (2) to move along the preset feeding direction through the reducer (39) and the commutator (34).
6. A drawing device, characterized in that, The application includes a feeding device for drawing quartz glass tubes according to any one of claims 1-5, further comprising: a furnace (4), wherein the feeding device body (1) is suspended above the furnace (4); The furnace (4) has a heating channel (41) in the middle, which is used to heat the quartz parent material (2) fed into the heating channel (41) by the feeding device body (1) to a molten state.
7. A drawing device according to claim 6, characterized in that, The drawing device further includes: a traction wheel set, which is located below the furnace (4); The traction wheel assembly includes at least two rotatable traction wheels (8), which are used to pull the quartz mother material (2) in a molten state obtained after passing through the heating channel (41) to produce quartz glass tubes of corresponding size and specifications.