Continuous drawing and cutting integrated equipment for glass tube rod

Abstract

The invention provides glass tube rod continuous drawing and cutting integrated equipment which comprises a vertical stand, the vertical stand is sequentially provided with a rod feeding mechanism, a heating furnace, a roller type traction mechanism, a linear traction mechanism and a cutting mechanism from top to bottom, the rod feeding mechanism comprises a chuck clamp capable of moving up and down, and the chuck clamp is used for clamping the upper end of a quartz tube; the roller type traction mechanism comprises two movable traction wheel sets, a first passing space is formed between the two traction wheel sets, the lower end of the quartz tube penetrates through the heating furnace and the first passing space, the traction wheel sets clamp the outer wall of the quartz tube, the cutting mechanism comprises a second sliding seat capable of transversely moving, and a cutting module is arranged on the second sliding seat. The cutting module comprises a rotatable cutting blade, a collecting mechanism is arranged below the cutting mechanism, the collecting mechanism is provided with a reciprocating frame connected with the vertical stand in a sliding mode, at least two detachable collecting barrels are arranged on the reciprocating frame, and the problem of rapid and continuous production of the glass tube rods is solved.

Description

Technical Field

[0001] This invention relates to the field of optical fiber manufacturing, and in particular to an integrated equipment for continuous drawing and cutting of glass tubes and rods. Background Technology

[0002] Optical fiber preforms are the core masterbatch for optical fiber manufacturing, and glass tubes (usually high-purity quartz tubes) are the key substrate material for preform preparation. Quartz glass tubes can be doped with special elements and then drawn to the required diameter using a heating and drawing process. Subsequently, the quartz tubes are cut into equal-length segments for later use.

[0003] Because the drawing process is continuous, the glass tube hardens after cooling. Unlike optical fibers, it cannot be collected by winding. It must be cut off in time to make room for continued drawing.

[0004] Currently, the cutting process in glass tube drawing is mostly done manually or with simple mechanical assistance. Manual cutting requires workers to operate at close range during the glass tube drawing process. They first pre-mark the surface of the glass tube, and then use a cutting tool to complete the cutting. The timing and force of the cutting must be manually controlled throughout the process, resulting in low cutting efficiency and slow collection. Therefore, the traction speed needs to be reduced to meet the cutting cycle, which indirectly limits production efficiency. Summary of the Invention

[0005] This invention provides an integrated equipment for continuous drawing and cutting of glass tubes and rods, which solves the problem of rapid and continuous production of glass tubes and rods.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: an integrated equipment for continuous drawing and cutting of glass tubes and rods, including a vertical frame, wherein the vertical frame is provided with a rod feeding mechanism, a heating furnace, a roller traction mechanism, a linear traction mechanism and a cutting mechanism from top to bottom. The rod feeding mechanism includes a chuck clamp that can move up and down, which is used to clamp the upper end of the quartz tube. The roller traction mechanism includes two movable traction wheel sets, and a first passage space is provided between the two traction wheel sets. The lower end of the quartz tube passes through the heating furnace and the first passage space. The traction wheel sets clamp the outer wall of the quartz tube. The cutting mechanism includes a second sliding seat that can move laterally, and a cutting module is provided on the second sliding seat. The cutting module includes a rotatable cutting blade. A collecting mechanism is provided below the cutting mechanism. The collecting mechanism is provided with a reciprocating frame that is slidably connected to the vertical frame. At least two detachable collecting cylinders are provided on the reciprocating frame.

[0007] In the preferred embodiment, the vertically moving modules at the upper and lower ends of the heating furnace are provided with furnace openings, the heating furnace is provided with a furnace chamber, a heating sleeve is provided inside the furnace chamber, and an inner tube is fitted inside the heating sleeve, with the upper and lower ends of the inner tube connected to each furnace opening respectively.

[0008] In the preferred embodiment, a perforated mask is provided at the furnace opening. The perforated mask includes a passage opening, an air inlet on the side wall of the passage opening, two oppositely arranged sliding holes at the passage opening, and an openable sliding door. The two sliding doors close together to seal the top of the furnace opening. An extension tube is provided at the opening of the passage opening, and a centrally hollowed-out cover is provided at the upper end of the extension tube.

[0009] In the preferred embodiment, a connecting sleeve is provided at the upper end of the opening, and the connecting sleeve is provided with multiple through grooves along the circumference. Each through groove is provided with a slidable telescopic piece, and one end of each telescopic piece is provided with a sliding hole. A sliding sleeve is fitted on the outer side of the connecting sleeve, and multiple inclined guide rods are also provided on the outer wall of the sliding sleeve along the circumference. Each inclined guide rod is inserted into the sliding hole, and the sliding sleeve slides to make the telescopic piece extend and retract.

[0010] In a preferred embodiment, the telescopic plates are divided into two layers along the axial direction of the connecting sleeve, and adjacent telescopic plates are staggered along the axial direction of the connecting sleeve.

[0011] In the preferred embodiment, one end of the connecting sleeve is provided with an outer sleeve, the extension tube is provided inside the outer sleeve, the outer sleeve is provided with a threaded spiral sleeve, the spiral sleeve is rotatably connected to the sliding sleeve, the spiral sleeve rotates to pull the sliding sleeve, the outer sleeve is provided with an air inlet and an air delivery passage, one end of the air delivery passage is connected to the inside of the outer sleeve, the side wall of the outer sleeve is provided with a sliding insertion hole, the sliding door is slidably connected to the sliding insertion hole, and the air inlet is located between the sliding door and the telescopic plate.

[0012] In a preferred embodiment, the extension tube can extend or retract relative to the outer tube.

[0013] In the preferred embodiment, the mask has an annular cavity, a negative pressure port on the outside of the annular cavity, and an air extraction hole inside the annular cavity.

[0014] In a preferred embodiment, the linear traction mechanism includes two vertically arranged linear vertical movement modules, with a second passage space between the two linear vertical movement modules. Each linear vertical movement module is also equipped with a lifting seat, and a tube clamp is provided on the lifting seat. The tube clamps of each linear traction mechanism alternately clamp the quartz tube and move it downward.

[0015] In a preferred embodiment, the cutting mechanism includes a vertically moving module, which has a first sliding seat that can move vertically. The first sliding seat has a base, and the base has a horizontally moving module. A second sliding seat is located on the horizontally moving module. The upper and lower ends of the first sliding seat are respectively provided with an upper support and a lower support. The upper support has an upper bracket, and the lower support has a lower bracket. The cutting module is located between the upper bracket and the lower bracket. The upper bracket and the lower bracket clamp the glass tube, and the second sliding seat drives the cutting blade to move horizontally to cut the glass tube.

[0016] The beneficial effects of this invention are as follows: Each mechanism adopts a vertical linear layout, and through various automated actuators, completes the entire process of glass tube feeding, forming, cutting, and unloading, resulting in high automation and production efficiency; the use of a spaced-out double traction mechanism ensures the verticality of the quartz glass tube through two-point traction, preventing vibration or bending; the lower long-stroke linear traction mechanism uses a double-clamp alternating clamping and traction method, which avoids large-area contact with the tube rod affecting cooling, increases the proportion of traction time during tube rod cooling, reduces the risk of bending, and improves the straightness of the glass tube rod forming; the glass tube cutting mechanism adopts a similar approach... The drawing process is synchronized at the same rate to avoid obstruction of the drawing process when the cutting blade is embedded in the tube rod, which could cause bending. An openable sliding door design allows the furnace opening to be sealed after the mother rod is removed, preventing impurities from entering. An extension tube design at the furnace opening provides a buffer space between the outside and the furnace interior, which can buffer some rare gases and prevent air from entering. An adjustable opening is constructed using multiple telescopic tabs to accommodate the diameter of the quartz tube rod, reducing unnecessary gaps, preventing rare gas waste, and minimizing heat loss. A stepped micro-positive pressure combined with negative pressure creates a pressure gradient at the furnace opening, improving the positive pressure sealing effect and facilitating the recovery of inert gases. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a schematic diagram of the vertical layout of each organization.

[0019] Figure 2 This is a side view of the vertical layout of each organization.

[0020] Figure 3 This is a schematic diagram of the rod feeding mechanism.

[0021] Figure 4 This is a side view of the bar feeding mechanism.

[0022] Figure 5 This is a schematic diagram of a roller-type traction mechanism.

[0023] Figure 6 This is a side view of a roller-type traction mechanism.

[0024] Figure 7 This is a schematic diagram of a linear traction mechanism.

[0025] Figure 8 This is a top view of a double-bar clamp.

[0026] Figure 9 This is a side view of the cutting mechanism.

[0027] Figure 10 This is a structural diagram of the lateral movement module of the cutting mechanism.

[0028] Figure 11 This is a schematic diagram of the structure at the clamping cylinder of the armrest.

[0029] Figure 12 This is a schematic diagram of the collection mechanism.

[0030] Figure 13 This is a schematic diagram of a heating furnace.

[0031] Figure 14 This is a schematic diagram of the furnace opening structure.

[0032] Figure 15 This is a schematic diagram of the extension tube extending out.

[0033] Figure 16 This is a structural diagram of the furnace opening of the heating furnace.

[0034] Figure 17 This is a schematic diagram of the bottom of the furnace opening structure.

[0035] In the diagram: Vertical moving module 1; First sliding seat 101; Base 102; Upper support 103; Lower support 104; Adjusting block 105; Waist-shaped groove 106; Adjusting screw 107; Upper support frame 2; Clamping cylinder 201; Forward extension frame 202; Positioning block 203; Connecting block 204; Contact piece 205; Lower support frame 3; Cutting module 4; Main spindle motor 401; Cutting blade 402; Main spindle clamping sleeve 403; Horizontal moving module 5; Second sliding seat 5 01; Hole Mask 6; Pass-through Port 601; Air Inlet 602; Sliding Door 603; Sliding Insertion Hole 604; Connecting Sleeve 7; Telescopic Plate 701; Sliding Hole 702; Inclined Guide Rod 703; Through Slide Groove 704; Sliding Sleeve 705; Spiral Sleeve 706; Outer Tube 707; Air Inlet 708; Air Delivery Channel 709; Inclined Platform 710; Extension Tube 8; Mask Retractor 9; Negative Pressure Port 901; Annular Cavity 902; Air Extraction Hole 903; Vertical Stand 10; Rod Feeding Mechanism 11 ; Chuck clamp 1101; Chuck connecting seat 1102; First transverse slide 1103; First transverse plate 1104; Second transverse slide 1105; Second transverse plate 1106; Vertical lifting slide 1107; Lifting platform 1108; Heating furnace 12; Furnace opening 1201; Heating jacket 1202; Inner tube 1203; Furnace chamber 1204; Diameter measuring instrument 13; Roller-type traction mechanism 14; Traction wheel set 1401; First passage space 14 02; Drive wheel 1403; Driven wheel 1404; Traction belt 1405; Fixed seat 1406; Linear push cylinder 1407; First guide wheel mechanism 15; Linear traction mechanism 16; Linear vertical movement module 1601; Lifting seat 1602; Pipe rod clamp 1603; Second passage space 1604; Second guide wheel mechanism 17; Cutting mechanism 18; Collection mechanism 19; Reciprocating frame 1901; Switching screw 1902; Collection cylinder 1903. Detailed Implementation

[0036] like Figure 1-17 A glass tube rod continuous drawing and cutting integrated device includes a vertical frame 10. The vertical frame 10 is provided with a rod feeding mechanism 11, a heating furnace 12, a roller traction mechanism 14, a linear traction mechanism 16 and a cutting mechanism 18 from top to bottom. The rod feeding mechanism 11 includes a vertically movable chuck clamp 1101 for clamping the upper end of the quartz tube. The roller traction mechanism 14 includes two movable traction wheel sets 1401. A first passage space 1402 is provided between the two traction wheel sets 1401. The lower end of the quartz tube passes through the heating furnace 12 and the first passage space 1402. The traction wheel sets 1401 clamp the outer wall of the quartz tube. A collecting mechanism 19 is provided below the cutting mechanism 18. The collecting mechanism 19 is provided with a reciprocating frame 1901 that is slidably connected to the vertical frame 10. At least two detachable collecting cylinders 1903 are provided on the reciprocating frame 1901.

[0037] The chuck clamp 1101 holds the upper end of the quartz tube. The lower end of the quartz tube is heated when it passes through the heating chamber of the heating furnace 12. The lower end of the heating furnace 12 is pulled down by the roller traction mechanism 14, making the quartz tube thinner.

[0038] There is a certain gap between the linear traction mechanism 16 and the roller traction mechanism 14, which allows the quartz tube at a higher temperature to have repeated time to cool and harden.

[0039] An optical non-contact diameter measuring instrument 13 is provided at the lower end of the heating furnace 12.

[0040] A first guide wheel mechanism 15 is provided above the roller-type traction mechanism 14.

[0041] The switching screw 1902 is fitted with a screw nut, which is connected to the reciprocating frame 1901. The switching screw 1902 can be used manually or connected to an external motor.

[0042] The cutting mechanism 18 cuts glass tubes and rods, and the collecting cylinder 1903 receives the tube segments. The reciprocating frame 1901 has three stroke positions: left, middle, and right. The middle position is the working position. When the empty collecting cylinder 1903 is switched to the middle position, the full collecting cylinder 1903 is in the unloading position on both sides. The operator can take out the full collecting cylinder 1903 and replace it with an empty collecting cylinder 1903.

[0043] The roller-type traction mechanism 14 includes a fixed base 1406, and each traction wheel set 1401 is slidably connected to the fixed base 1406. The traction wheel set 1401 includes a driving wheel 1403 and a driven wheel 1404. A traction belt 1405 is provided between the driving wheel 1403 and the driven wheel 1404. A linear push cylinder 1407 is provided between the fixed base 1406 and each traction wheel set 1401. The linear push cylinder 1407 drives the two traction wheel sets 1401 to move in opposite directions so that the traction belt 1405 contacts the outer wall of the quartz tube.

[0044] Since the roller-type traction mechanism 14 is close to the heating furnace 12 and the quartz tube has not been fully hardened, the traction belt 1405 is used as the contact part, which has a large contact area and avoids local deformation.

[0045] The bar feeding mechanism 11 includes a vertical lifting slide 1107, which is provided with a lifting platform 1108. The lifting platform 1108 is provided with a first transverse slide 1103 and a second transverse slide 1105 arranged orthogonally. The chuck clamp 1101 is connected to the second transverse slide 1105.

[0046] The first transverse slide 1103 is provided with a first transverse plate 1104, the second transverse slide 1105 is provided on the first transverse plate 1104, the second transverse slide 1105 is provided with a second transverse plate 1106, the second transverse plate 1106 is provided with a chuck connecting seat 1102, and the lower end of the chuck connecting seat 1102 is connected to the chuck clamp 1101.

[0047] The vertical lifting slide 1107, the first transverse slide 1103, and the second transverse slide 1105 are all servo motor-screw-rail type structures. The vertically orthogonally arranged transverse slides can adjust the clamping axis position of the chuck clamp 1101 to align with the heating chamber axis of the heating furnace 12. The vertical lifting slide 1107 has a long stroke and can drive the chuck clamp 1101 to rise and fall. When the lower end of the quartz tube is consumed, the chuck clamp 1101 moves down synchronously to replenish the consumption and maintain the continuity of the pulling.

[0048] In the preferred embodiment, the vertically moving module 1 at both ends of the heating furnace 12 is provided with a furnace opening 1201, the heating furnace 12 is provided with a furnace chamber 1204, the furnace chamber 1204 is provided with a heating sleeve 1202, and the heating sleeve 1202 is fitted with an inner tube 1203, the upper and lower ends of the inner tube 1203 are respectively connected to each furnace opening 1201.

[0049] For high-temperature heating furnaces, heating jacket 1202 mainly adopts a graphite structure, while for medium- and low-temperature heating furnaces, heating jacket 1202 mainly adopts an electric heating coil.

[0050] In the preferred embodiment, a perforated mask 6 is provided at the furnace opening 1201. The perforated mask 6 includes a passage 601, an air inlet 602 on the side wall of the passage 601, two oppositely arranged sliding holes 604 at the passage 601, and an openable sliding door 603. The two sliding doors 603 close together to seal the top of the furnace opening 1201. An extension tube 8 is provided at the opening of the passage 601, and a centrally hollowed-out receiving mask 9 is provided at the upper end of the extension tube 8.

[0051] Inert gas is introduced into the passage 601 from the air inlet 602. Part of the inert gas enters the heating furnace 12 along the furnace opening 1201, carrying heat downwards to accelerate heat exchange in the furnace and protect the furnace structure from oxidation. The other part diffuses upwards and downwards, expelling the air in the passage 601 and the extension pipe 8, and forming a positive pressure seal to prevent air from re-entering.

[0052] When the quartz tube needs to be replaced, it is moved upwards. When the lower end of the quartz tube disengages from the sliding door 603, the sliding door 603 closes, sealing the upper part of the passage 601. Due to the presence of the extension tube 8, the quartz tube is still within the extension tube 8 section, creating some obstruction to the outside air. Furthermore, the extension tube 8 section also contains inert gas, making it difficult for outside air to enter. When the quartz tube is completely withdrawn from the extension tube 8, the sliding door 603 is already closed. Since the commonly used inert gas is argon, which is denser than air, it will remain inside the extension tube 8. When the replaced quartz tube is reinserted into the extension tube 8, any air brought in will have difficulty entering the bottom section of the extension tube 8. When the quartz tube is inserted close to the passage 601, the sliding door 603 is reopened, and the quartz tube continues to move downwards into the heating furnace 12.

[0053] Because the furnace opening can be sealed, heat loss is minimal, and the reheating time of the replaced furnace body is short. Furthermore, outside air is difficult to enter the furnace body during the replacement of quartz tubing, and there is no need to reconstruct an oxygen-free environment. Therefore, the time from replacement to redrawing of quartz tubing is short, improving production efficiency and avoiding heat waste.

[0054] The same furnace opening structure can also be used at the lower end of the heating furnace 12.

[0055] Different quartz tubes have different gaps with the sidewall of the extension tube 8. If the quartz tube is replaced with a smaller diameter specification, the gap between the extension tube 8 and the outer wall of the tube will increase, which may lead to an increase in the leakage of rare gases, and air may also enter through the gap.

[0056] In a preferred embodiment, a connecting sleeve 7 is provided at the upper end of the port 601. The connecting sleeve 7 has multiple through grooves 704 along the circumference. Each through groove 704 has a slidable telescopic piece 701. One end of each telescopic piece 701 has a sliding hole 702. A sliding sleeve 705 is fitted on the outside of the connecting sleeve 7. The outer wall of the sliding sleeve 705 is also provided with multiple inclined guide rods 703 along the circumference. Each inclined guide rod 703 is inserted into the sliding hole 702. The sliding sleeve 705 slides to make the telescopic piece 701 extend and retract.

[0057] In a preferred embodiment, the telescopic piece 701 is divided into two layers in the axial direction of the connecting sleeve 7, and adjacent telescopic pieces 701 are staggered in the axial direction of the connecting sleeve 7.

[0058] From a circumferential perspective, the adjacent telescopic plates 701 are arranged in two layers in an alternating manner. Therefore, when the telescopic plates 701 are retracted, the adjacent telescopic plates 701 will overlap near the axis end of the connecting sleeve 7. All the telescopic plates 701 form a retractable orifice, and the orifice diameter can be adjusted according to the outer diameter of the quartz tube rod to ensure reasonable gap and eliminate the need to replace it with an extension tube 8 of a smaller diameter.

[0059] In a preferred embodiment, one end of the connecting sleeve 7 is provided with an outer sleeve 707, and the extension tube 8 is provided inside the outer sleeve 707. The outer sleeve 707 is provided with a threaded spiral sleeve 706, which is rotatably connected to the sliding sleeve 705. The spiral sleeve 706 rotates spirally to pull the sliding sleeve 705. The outer sleeve 707 is provided with an air inlet 708 and an air delivery channel 709. One end of the air delivery channel 709 is connected to the inside of the outer sleeve 707. The side wall of the outer sleeve 707 is provided with a sliding insertion hole 604, and the sliding door 603 is slidably connected to the sliding insertion hole 604. The air inlet 708 is located between the sliding door 603 and the telescopic plate 701.

[0060] The sliding door 603 and the spiral sleeve 706 can be connected to an external automated drive mechanism to control their actions.

[0061] The outer wall of the sliding sleeve 705 is provided with multiple inclined platforms 710, and the inclined guide rod 703 is threadedly connected to the inclined platform 710. The threaded connection makes the inclined guide rod 703 detachable and easy to install. The other end of the inclined guide rod 703 is a large-diameter end to prevent it from sliding out of the sliding hole 702.

[0062] The gas supply duct 709 connects to the lower part of the inner part of the outer casing 707 to avoid being blocked by the extension tube 8.

[0063] After the telescopic plate 701 closes and closes, the gap between it and the quartz tube can be very small, and less rare gas leaks from the gap. At this time, air is introduced through the air inlet 708, so that the area above the telescopic plate 701 is quickly vented of air.

[0064] While the extension tube 8 can effectively improve the positive pressure sealing performance, the quartz tube rod needs to be extended to reach the interior of the heating furnace 12 due to the added height. In other words, each tube rod will waste a section of height.

[0065] In a preferred embodiment, the extension tube 8 is telescopic relative to the outer tube 707.

[0066] Since the telescopic plate 701, sliding door 603 and other structures occupy a certain space in the height direction, they can serve as the base position for the extension tube 8. The extension tube 8 can be designed to be half the original length. In the retracted state, the quartz tube rod does not need to be too long to extend into the heating furnace 12, and the wasted length of the quartz tube rod is also halved accordingly.

[0067] In the preferred embodiment, the mask 9 has an annular cavity 902, a negative pressure port 901 on the outside of the annular cavity 902, and an air extraction hole 903 inside the annular cavity 902.

[0068] The air pressure at inlet 602, inlet 708, and negative pressure port 901 is set to decrease sequentially. Inlet 602 and inlet 708 are at positive pressure, while negative pressure port 901 is at negative pressure and slightly lower than the outside atmospheric pressure. At this time, external air and impurities will be drawn away when they approach the retractable mask 9, making it difficult for them to penetrate deep into the extension tube 8. Furthermore, the rare gas at inlet 708 is also guided to move upward against gravity, assisting in the exhaust of air.

[0069] The negative pressure port 901 can be connected to the collection tube to collect the inhaled rare gases, which can then be separated for reuse, reducing costs.

[0070] Due to the pressure difference, the extension tube 8 and the outer tube 707 can be further shortened, further reducing the wasted length of the quartz tube rod.

[0071] In a preferred embodiment, the linear traction mechanism 16 includes two vertically arranged linear vertical movement modules 1601, with a second passage space 1604 between the two linear vertical movement modules 1601. Each linear vertical movement module 1601 is also provided with a lifting seat 1602, and a tube clamp 1603 is provided on the lifting seat 1602. The tube clamp 1603 of each linear traction mechanism 16 alternately clamps the quartz tube and moves it downward.

[0072] The 1603 tube clamp is a parallel cylinder with flexible buffer pads installed on the gripping fingers to prevent damage to the quartz tube.

[0073] When the quartz tube reaches the linear traction mechanism 16, it already possesses a certain structural strength, enabling it to withstand the clamping force of the fixture without deformation. The linear traction mechanism 16, in conjunction with the roller-type traction mechanism 14, provides a more stable dual-point clamping of the quartz tube. The linear traction mechanism 16 has a longer clamping stroke, allowing for control of the quartz tube's position over a longer period of time and space, preventing deflection during pulling.

[0074] The linear traction mechanism 16 uses an alternating clamping and pulling method to pull the quartz tube. The contact area with the quartz tube is small, allowing the quartz tube to continue cooling until it is completely hardened. After reaching the cutting mechanism 18, it is cut into segments of a fixed length.

[0075] In a preferred embodiment, the cutting mechanism 18 includes a vertical moving module 1, which has a first sliding seat 101 that can move vertically. The first sliding seat 101 has a base 102, and the base 102 has a horizontal moving module 5. The horizontal moving module 5 includes a second sliding seat 501 that can move horizontally. The second sliding seat 501 has a cutting module 4, which includes a rotatable cutting blade 402. The upper and lower ends of the first sliding seat 101 are respectively provided with an upper support 103 and a lower support 104. The upper support 103 is provided with an upper support 2, and the lower support 104 is provided with a lower support 3. The cutting module 4 is located between the upper support 2 and the lower support 3. The upper support 2 and the lower support 3 clamp the glass tube, and the second sliding seat 501 drives the cutting blade 402 to move horizontally to cut the glass tube.

[0076] The vertical moving module 1 and the horizontal moving module 5 are servo motor-lead screw-guide rail structures.

[0077] The first sliding block 101 drives the cutting and clamping mechanism to move downward synchronously, with the speed being consistent with the speed of the glass tube. The cutting module 4 and the glass tube maintain relative restraint for a period of time to prevent the glass tube from being pulled and deformed.

[0078] The cutting module 4 includes a spindle motor 401, a cutting blade 402 is mounted on the shaft end of the spindle motor 401, and the spindle motor 401 is clamped and mounted on the second sliding seat 501 by a spindle clamping sleeve 403.

[0079] The upper support 103 has an L-shaped adjusting block 105 at its upper end. The adjusting block 105 has a waist-shaped groove 106. An adjusting screw 107 is provided in the waist-shaped groove 106. The adjusting screw 107 is threadedly connected to the upper support 103.

[0080] The upper support frame 2 and the lower support frame 3 have the same structure. The lower support frame 3 is used as the base. The position of the upper support frame 2 is adjusted by the waist-shaped groove 106 so that the clamping center of the upper support frame 2 is coaxial with the lower support frame 3.

[0081] The upper support frame 2 and the lower support frame 3 include a clamping cylinder 201. The clamping cylinder 201 has a front extension frame 202 at both ends that can clamp. Each front extension frame 202 has a positioning block 203 and a connecting block 204 at its end. The connecting block 204 has a contact piece 205.

[0082] The connecting block 204 can be replaced according to the working conditions to adapt to different glass tube specifications. For example, when the stroke of the clamping cylinder 201 reaches its limit, clamping and limiting can be achieved by replacing the connecting block 204 with one of different thicknesses.

[0083] The contact piece 205 is an arc-shaped piece, and the contact piece 205 is made of a material with a certain degree of flexibility to improve friction and prevent excessive compression of the glass tube.

[0084] The linear traction mechanism 16 is equipped with second guide wheel mechanisms 17 at both the upper and lower ends.

[0085] Because the linear traction mechanism 16 is relatively long, a set of rollers needs to be installed at both the upper and lower ends to limit the position of the tube bar.

[0086] The above embodiments are merely preferred technical solutions of the present invention and should not be considered as limitations on the present invention. The scope of protection of the present invention should be limited to the technical solutions described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. An integrated equipment for continuous drawing and cutting of glass tubes and rods, characterized in that: The system includes a vertical support frame (10), which, from top to bottom, comprises a rod feeding mechanism (11), a heating furnace (12), a roller-type traction mechanism (14), a linear traction mechanism (16), and a cutting mechanism (18). The rod feeding mechanism (11) includes a vertically movable chuck clamp (1101) used to clamp the upper end of the quartz tube. The roller-type traction mechanism (14) includes two movable traction wheel sets (1401), with a first passage space (1402) between the two traction wheel sets (1401). The lower end of the quartz tube passes through the heating furnace. The furnace (12) and the first passage space (1402) are connected. The traction wheel group (1401) clamps the outer wall of the quartz tube. The cutting mechanism (18) includes a second sliding seat (501) that can move laterally. The second sliding seat (501) is provided with a cutting module (4). The cutting module (4) includes a rotatable cutting blade (402). A collection mechanism (19) is provided below the cutting mechanism (18). The collection mechanism (19) is provided with a reciprocating frame (1901) that is slidably connected to the vertical frame (10). At least two detachable collection cylinders (1903) are provided on the reciprocating frame (1901).

2. The integrated equipment for continuous drawing and cutting of glass tubes and rods according to claim 1, characterized in that: The heating furnace (12) has a furnace opening (1201) on both the upper and lower ends of the vertical moving module (1). The heating furnace (12) has a furnace chamber (1204) inside. The furnace chamber (1204) has a heating sleeve (1202) inside. The heating sleeve (1202) has an inner tube (1203) inside. The upper and lower ends of the inner tube (1203) are connected to each furnace opening (1201) respectively.

3. The integrated equipment for continuous drawing and cutting of glass tubes and rods according to claim 2, characterized in that: A perforated mask (6) is provided at the furnace opening (1201). The perforated mask (6) includes a passage (601). An air inlet (602) is provided on the side wall of the passage (601). Two sliding holes (604) are also provided at the passage (601). A sliding door (603) is also provided. The two sliding doors (603) close together to seal the top of the furnace opening (1201). An extension tube (8) is provided at the opening of the passage (601). A centrally hollowed-out cover (9) is provided at the upper end of the extension tube (8).

4. The integrated equipment for continuous drawing and cutting of glass tubes and rods according to claim 3, characterized in that: The upper end of the opening (601) is provided with a connecting sleeve (7), and the connecting sleeve (7) is provided with multiple through grooves (704) along the circumference. Each through groove (704) is provided with a sliding telescopic piece (701), and one end of each telescopic piece (701) is provided with a sliding hole (702). The outer side of the connecting sleeve (7) is fitted with a sliding sleeve (705), and the outer wall of the sliding sleeve (705) is also provided with multiple inclined guide rods (703) along the circumference. Each inclined guide rod (703) is inserted into the sliding hole (702), and the sliding sleeve (705) slides to make the telescopic piece (701) extend and retract.

5. The integrated equipment for continuous drawing and cutting of glass tubes and rods according to claim 4, characterized in that: The telescopic piece (701) is divided into two layers in the axial direction of the connecting sleeve (7), and the adjacent telescopic pieces (701) are staggered in the axial direction of the connecting sleeve (7).

6. The integrated equipment for continuous drawing and cutting of glass tubes and rods according to claim 4, characterized in that: One end of the connecting sleeve (7) is provided with an outer sleeve (707), and the extension tube (8) is provided inside the outer sleeve (707). The outer sleeve (707) is provided with a threaded spiral sleeve (706). The spiral sleeve (706) is rotatably connected to the sliding sleeve (705). The spiral sleeve (706) rotates spirally to pull the sliding sleeve (705). The outer sleeve (707) is provided with an air inlet (708) and an air delivery channel (709). One end of the air delivery channel (709) is connected to the inside of the outer sleeve (707). The side wall of the outer sleeve (707) is provided with a sliding insertion hole (604). The sliding door (603) is slidably connected to the sliding insertion hole (604). The air inlet (708) is located between the sliding door (603) and the telescopic plate (701).

7. The integrated equipment for continuous drawing and cutting of glass tubes and rods according to claim 6, characterized in that: The extension tube (8) is telescopic relative to the outer tube (707).

8. The integrated equipment for continuous drawing and cutting of glass tubes and rods according to claim 6, characterized in that: The mask (9) has an annular cavity (902), a negative pressure port (901) on the outside of the annular cavity (902), and an air extraction hole (903) inside the annular cavity (902).

9. The integrated equipment for continuous drawing and cutting of glass tubes and rods according to claim 1, characterized in that: The linear traction mechanism (16) includes two vertically arranged linear vertical movement modules (1601), and a second passage space (1604) is provided between the two linear vertical movement modules (1601). Each linear vertical movement module (1601) is also provided with a lifting seat (1602), and a tube clamp (1603) is provided on the lifting seat (1602). The tube clamp (1603) of each linear traction mechanism (16) alternately clamps the quartz tube and moves it downward.

10. The integrated equipment for continuous drawing and cutting of glass tubes and rods according to claim 1, characterized in that: The cutting mechanism (18) includes a vertical moving module (1), which is provided with a first sliding seat (101) that can move vertically. A base (102) is provided on the first sliding seat (101), and a horizontal moving module (5) is provided on the base (102). A second sliding seat (501) is provided on the horizontal moving module (5). An upper support (103) and a lower support (104) are provided at the upper and lower ends of the first sliding seat (101), respectively. An upper support (2) is provided on the upper support (103), and a lower support (3) is provided on the lower support (104). The cutting module (4) is located between the upper support (2) and the lower support (3). The upper support (2) and the lower support (3) clamp the glass tube. The second sliding seat (501) drives the cutting blade (402) to move horizontally to cut the glass tube.

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