A rod roller round tooling for a rod drawing machine

Abstract

The name of the present invention is a rod-drawing machine sub-rod rolling tool. It belongs to the technical field of optical glass manufacturing. It mainly solves the problem that the sub-rod ovality exceeds the standard when the optical glass rod-drawing machine produces sub-rods with a diameter of 8.2 or more. Its main features are: it includes a double-roller heating gun assembly, a double-roller rotating roller assembly and a double-roller roller displacement assembly; the two rollers of the double-roller rotating roller assembly and its power transmission mechanism are separately arranged on two frames; the double-roller heating gun assembly includes two groups of heating gun assemblies arranged on two frames; the double-roller roller displacement assembly includes two groups of roller displacement assemblies that can make the two frames move toward or away from each other. By rolling the sub-rod in the rolling mold cavity formed by the double rollers and then pulling the rod downward, the ovality of the produced sub-rod can reach the standard. The present invention has the characteristics of simple structure, convenient operation and high rolling precision, and is mainly used for the production of sub-rods with a diameter of 8.2 or more in optical glass rod-drawing machines.

Description

Technical Field

[0001] The invention belongs to the technical field of optical glass manufacturing, and in particular relates to a roller tooling for an optical glass rod drawing machine when producing sub-rods with a diameter of more than 8.2 mm. Background Art

[0002] With the continuous development of the optical glass industry, more and more optical equipment and optical lenses have entered people's daily lives. The increasing demand for optical glass has put forward higher requirements on the production capacity of the optical glass manufacturing industry. At present, the production methods of optical glass molds are mainly based on pressing, rollers and rod drawing. For molds with a diameter of more than φ8.2mm, the sub-rods produced by the rod drawing machine cannot achieve efficient and high-quality production due to excessive ovality. Therefore, molds with a diameter of more than φ8.2mm can only be produced by rollers or pressing. This increases the production pressure of the company's roller and pressing units. The diameter coverage rate of molds produced by the existing rod drawing equipment has seriously restricted the development of the company and the improvement of production capacity. Summary of the invention

[0003] The present invention aims at solving the above-mentioned deficiencies and provides a roller rounding tool for an optical glass rod drawing machine when producing rods with a diameter of more than φ8.2 mm.

[0004] The technical solution of the present invention is: a rod rolling tool for a rod pulling machine, characterized in that: it includes a double-roller heating gun assembly, a double-roller rotating roller assembly that can roll round rods, and a double-roller roller displacement assembly; wherein, the two rollers of the double-roller rotating roller assembly and its power transmission mechanism are separately arranged on two frames; the double-roller heating gun assembly includes two groups of heating gun assemblies arranged on two frames; the double-roller roller displacement assembly includes two groups of roller displacement assemblies that can cause the two frames to displace toward or away from each other.

[0005] The two rollers described in the technical solution of the present invention are provided with a semicircular rolling mold cavity; when the two frames are displaced toward each other and merged, the two rollers are connected to form a circular rolling mold cavity.

[0006] The two frames described in the technical solution of the present invention are both provided with roller mounting holes and roller plugging mounting grooves, roller plugging is installed in the roller plugging mounting grooves, and the roller plugging is provided with plugging roller mounting holes; the two rollers are respectively installed in the roller mounting holes and plugging roller mounting holes of the two frames through F-type copper alloy sleeves; the two frames are both provided with sleeve baffle mounting holes, and sleeve baffles are installed in the sleeve baffle mounting holes.

[0007] The power transmission mechanisms of the two rollers described in the technical solution of the present invention each include a transmission belt, a large spur gear, a small spur gear, a gear shaft, a gear locking ring and a motor; wherein the large spur gear is mounted on a frame via an F-type copper alloy bushing, a gear shaft and a gear locking ring; the motor is mounted on the frame, the small spur gear is mounted on the motor shaft, and the small spur gear is meshed with the large spur gear; the transmission belt is mounted in a transmission belt mounting groove on the roller gear shaft.

[0008] The double-roller roller displacement assembly described in the technical solution of the present invention includes two groups of sliders, two parallel slide rails and two cylinders; wherein the two groups of sliders are respectively installed on two frames and on two slide rails; the two cylinders are respectively connected to the two frames through their stamping rods.

[0009] The frame described in the technical solution of the present invention is provided with a slider mounting hole; the frame is installed on the slider by screws; the slide rail is provided with a slide rail mounting hole; the slide rail is installed on the rod pulling machine frame by screws; the frame is provided with a stamping rod mounting hole of the cylinder, and the stamping rod of the cylinder is connected to the frame by a locking nut; the cylinder is installed on the rod pulling machine frame by screws.

[0010] The double-roller heating musket assembly described in the technical solution of the present invention includes two musket bodies, two musket air pipe joints and two musket mounting plates; wherein the two musket mounting plates are respectively mounted on two frames; the two musket bodies are respectively welded on the two musket mounting plates; the two musket air pipe joints are respectively mounted on the two musket bodies.

[0011] The technical solution of the present invention provides a musket air pipe joint mounting hole at one end of the musket body, and the musket air pipe joint is connected to the musket body by threads; the frame is provided with a musket mounting plate mounting hole, and the musket mounting plate is mounted on the frame by screws.

[0012] The two rollers described in the technical solution of the present invention are both shafts with a thick middle section and thin ends, and the thick shaft section in the middle section is provided with an annular groove with a semicircular cross-sectional area.

[0013] The slide rail described in the technical solution of the present invention is installed on the frame of the rod drawing machine; and the cylinder is installed on the frame of the rod drawing machine.

[0014] The present invention adopts a sub - rod roller rounding tooling for a rod drawing machine, which consists of a double - roller heating torch assembly, a double - roller rotary roller assembly capable of rounding the sub - rod, and a double - roller displacement assembly. Among them, the two rollers of the double - roller rotary roller assembly and their power transmission mechanisms are respectively arranged on two frames. The double - roller heating torch assembly includes two groups of heating torch assemblies respectively arranged on two frames. The double - roller displacement assembly includes two groups of roller displacement assemblies that can move the two frames towards or away from each other. The double - roller displacement assembly is installed on the rod drawing machine frame. When the two frames move away from each other, it is convenient for the rod drawing machine to clamp the mother rod. When the two frames move towards each other, it is convenient for the two rollers to clamp, so that the two rollers are joined to form a die cavity. The double - roller rotary roller assembly can drive the sub - rod to draw the rod downwards. Therefore, when producing the sub - rod, the sub - rod can be rounded to meet the ovality standard.

[0015] The present invention has the characteristics of simple structure, convenient operation and high roller rounding accuracy. The present invention is mainly used for rounding the sub - rod when an optical glass rod drawing machine produces sub - rods with a diameter of more than φ8.2mm. Brief Description of the Drawings

[0016] Figure 1 is a schematic structural diagram of the present invention.

[0017] Figure 2 is a top view of the present invention.

[0018] In the figure: 1. Frame; 2. Roller; 3. Roller plug; 4. Sleeve baffle; 5. Transmission belt; 6. Large straight gear; 7. Small straight gear; 8. Gear shaft; 9. Gear locking ring; 10. Motor; 11. Slide block; 12. Slide rail; 13. Cylinder; 14. Torch body; 15. Torch gas pipe joint; 16. Torch mounting plate. Detailed Description of the Invention

[0019] As Figure 1 、 Figure 2 shown, an embodiment of a sub - rod roller rounding tooling for an optical glass rod drawing machine according to the present invention includes a double - roller heating torch assembly, a double - roller rotary roller assembly capable of rounding the sub - rod, and a double - roller displacement assembly, which is used for rounding the sub - rod when an optical glass rod drawing machine produces sub - rods with a diameter of more than φ8.2mm.

[0020] The frame 1 includes two identical frames. The frame is in the shape of a rectangular box, with an extended bottom plate extending out of the box body at the bottom, and a motor mounting plate is provided on the extended bottom plate.

[0021] The double roller rotary roller assembly includes two rollers 2 and their power transmission mechanism which are separately arranged on two frames 1. Both rollers 2 are shafts with a thick middle and thin ends. The thick shaft section in the middle is provided with an annular groove with a semicircular cross-sectional area. When the two frames 1 are displaced toward each other and merged, the two rollers 2 are connected to form a circular rolling mold cavity. The two frames 1 are provided with roller mounting holes and roller plugging mounting grooves on one side. The roller plugging 3 is installed in the roller plugging mounting groove. The roller plugging 3 is provided with a plugging roller mounting hole. One end of the roller 2 is installed in the roller mounting hole of the frame 1 through an F-type copper alloy sleeve, and the other end is installed in the roller mounting hole of the roller plugging 3 through an F-type copper alloy sleeve. The roller plugging 3 is installed on the frame by screws. Both frames 1 are provided with sleeve baffle mounting holes, and sleeve baffle 4 is installed on the sleeve baffle mounting hole of frame 1 by screws to limit the axial movement of F-type copper alloy sleeve, wherein the F-type copper alloy sleeve cooperates with roller 2 and the shoulder of roller 2, thereby limiting the axial movement of roller 2 and ensuring that roller 2 can rotate freely. The power transmission mechanism includes a transmission belt 5, a large spur gear 6, a small spur gear 7, a gear shaft 8, a gear locking ring 9 and a motor 10. Frame 1 is provided with a gear shaft mounting hole, and gear shaft 8 is installed on the gear shaft mounting hole of frame 1 through an F-type copper alloy sleeve. Gear shaft 8 is provided with a keyway, and large spur gear 6 is installed on gear shaft 8 through key cooperation, and gear locking ring 9 is provided with a set screw mounting hole, and gear locking ring 9 is installed on gear shaft 8 through a set screw. Roller 2 and gear shaft 8 are provided with a transmission belt mounting groove, and transmission belt 5 is installed in the transmission belt mounting groove on roller 2 and gear shaft 8. The motor mounting plate of the frame 1 is provided with a motor mounting hole, and the motor 10 is mounted on the frame 1 by screws. The small spur gear 7 is provided with a set screw mounting hole, and the small spur gear 7 is mounted on the motor shaft by a set screw. During operation, the motor 10 drives the small spur gear 7 to rotate, and the small spur gear 7 drives the large spur gear 6 to rotate through gear meshing. The large spur gear 6 is mounted on the gear shaft 8 through a key and a gear locking ring 9, and then drives the gear shaft 8 to rotate, and the gear shaft 8 drives the roller 2 to rotate through the transmission belt 5.

[0022] Double roller displacement assembly The double roller displacement assembly includes two groups of sliders 11, two parallel slide rails 12 and two cylinders 13, which are divided into two groups and can make the two frames 1 move toward or away from each other. Among them, the side of the frame 1 far from the roller 2 is provided with a punch rod connecting hole of the cylinder 13, the punch rod of the cylinder 13 is connected to the frame 1 by threading and locked by a locking nut, and the body of the cylinder 13 is installed on the frame of the rod drawing machine by screws. Each group of sliders 11 includes four sliders, and the bottom of the side of the frame 1 far from the extended bottom plate is provided with two slider mounting holes, and the extended bottom plate is provided with two slider mounting holes. The four sliders are installed on the frame 1 and its extended bottom plate by screws. The slide rail 12 is provided with a slide rail mounting hole, and the slide rail 12 is installed on the frame of the rod drawing machine by screws. The two groups of sliders 11 are assembled with the two slide rails 12 to ensure that the sliders 11 can slide freely along the slide rails 12, driving the two frames 1 to move toward or away from each other. During operation, the punching rod of the cylinder 13 is extended under the action of compressed air, pushing the frame 1 and the components thereon to slide as a whole along the slide rail 12 to the working position.

[0023] The double roller heating musket assembly includes two musket bodies 14, two musket air pipe joints 15 and two musket mounting plates 16, which are divided into two groups and installed on two frames 1. Among them, the frame 1 is provided with mounting holes for the musket mounting plates 16 on both sides above the roller 2, and the musket mounting plates 16 are installed on the frame 1 by screws. The musket body 14 is welded to the musket mounting plate 16. One end of the musket body 14 is provided with a musket air pipe joint mounting hole, and the musket air pipe joint 15 is connected to the musket body 14 by pipe thread. When working, the musket air pipe joint 15 is connected to the natural gas, and the heating musket heats the roller 2 by open flame.

[0024] When producing sub-rods with a diameter of φ8.2 mm or larger, the punching rod of the cylinder 13 is first retracted under the action of compressed air, and the frame 1 and its components are pulled to slide along the slide rail 12 as a whole, so that the left and right parts of the tooling are separated. After the rod drawing machine has clamped the mother rod and the sub-rod has completed the leading work, the motor 10 is energized to drive the roller to rotate. At the same time, the punching rod of the cylinder 13 is extended under the action of compressed air, pushing the frame 1 and its components to slide along the slide rail 12 as a whole until the left and right rollers are combined, so that the annular grooves of the two rollers are connected to form a rolling die cavity, so that the sub-rod is rolled round by the double rollers in the rolling die cavity and then pulled downward, so that the ovality of the produced sub-rod meets the standard. During the entire process of producing the sub-rod, the rollers are heated by a double roller heating gun. When a new mother rod needs to be replaced, the above process is repeated.

Claims

1. A rod-drawing machine rod rolling tool, which relates to an optical glass rod-drawing machine when producing rods with diameters of 8.2 mm or more. Features: The invention comprises a double roller heating lance assembly, a double roller rotary roller assembly capable of rolling a rod into a round shape, and a double roller roller displacement assembly; wherein the two rollers (2) of the double roller rotary roller assembly and a power transmission mechanism thereof are arranged on two frames (1); the double roller heating lance assembly comprises two groups of heating lance assemblies arranged on the two frames (1) for heating the rollers (2) by means of an open flame; the double roller roller displacement assembly comprises two groups of roller displacement assemblies capable of causing the two frames (1) to be displaced towards or away from each other; the two rollers (2) are provided with a semicircular rolling die cavity; when the two frames (1) are displaced towards each other and merged, the two rollers (2) are connected to form a circular rolling die cavity, so that the rod is rolled into a round shape by the two rollers (2) in the rolling die cavity and then pulled downward, so that the ovality of the produced rod reaches the standard.

2. A rod drawing machine rod rolling tool according to claim 1, Features: The two frames (1) are each provided with a roller mounting hole and a roller plugging mounting groove, a roller plug (3) is installed in the roller plugging mounting groove, and the roller plug (3) is provided with a plugging roller mounting hole; the two rollers (2) are respectively installed in the roller mounting holes and the plugging roller mounting holes of the two frames (1) through F-type copper alloy shaft sleeves; the two frames (1) are each provided with a shaft sleeve baffle mounting hole, and a shaft sleeve baffle (4) is installed in the shaft sleeve baffle mounting hole.

3. A rod drawing machine rod rolling tool according to claim 1, Features: The power transmission mechanisms of the two rollers (2) each comprise a transmission belt (5), a large spur gear (6), a small spur gear (7), a gear shaft (8), a gear locking ring (9) and a motor (10); wherein the large spur gear (6) is mounted on a frame (1) via an F-type copper alloy bushing, a gear shaft (8) and a gear locking ring (9); the motor (10) is mounted on the frame (1), the small spur gear (7) is mounted on the motor shaft, and the small spur gear (7) meshes with the large spur gear (6); and the transmission belt (5) is mounted in a transmission belt mounting groove on the roller (2) and the gear shaft (8).

4. A rod drawing machine rod roller rounding tool according to any one of claims 1 to 3, Features: The double-roller roller displacement assembly comprises two sets of sliders (11), two parallel slide rails (12) and two cylinders (13); wherein the two sets of sliders (11) are respectively mounted on two frames (1) and on two slide rails (12); and the two cylinders (13) are respectively connected to the two frames (1) via their punching rods.

5. A rod drawing machine rod rolling tool according to claim 4, Features: The frame (1) is provided with a slider mounting hole; the frame (1) is mounted on the slider (11) by means of screws; the slide rail (12) is provided with a slide rail mounting hole; the slide rail (12) is mounted on the rod drawing machine frame by means of screws; the frame (1) is provided with a punching rod mounting hole of the cylinder (13); the punching rod of the cylinder (13) is connected to the frame (1) by means of a locking nut; the cylinder (13) is mounted on the rod drawing machine frame by means of screws.

6. A rod drawing machine rod roller rounding tool according to any one of claims 1-3 and 5, Features: The double-roller heating musket assembly comprises two musket bodies (14), two musket air pipe joints (15) and two musket mounting plates (16); wherein the two musket mounting plates (16) are respectively mounted on two frames (1); the two musket bodies (14) are respectively welded to the two musket mounting plates (16); and the two musket air pipe joints (15) are respectively mounted on the two musket bodies (14).

7. A rod drawing machine rod rolling tool according to claim 6, Features: A musket gas pipe joint mounting hole is provided at one end of the musket body (14), and a musket gas pipe joint (15) is connected to the musket body (14) by means of threads; a musket mounting plate mounting hole is provided on the frame (1), and the musket mounting plate (16) is mounted on the frame (1) by means of screws.

8. A rod drawing machine rod roller rounding tool according to any one of claims 1-3, 5 and 7, Features: The two rollers (2) are both shafts that are thick in the middle and thin at both ends, and the thick shaft section in the middle is provided with an annular groove with a semicircular cross-sectional area.

9. The rod drawing machine rod rolling tool according to claim 4, Features: The slide rail (12) is mounted on the rod drawing machine frame; and the cylinder (13) is mounted on the rod drawing machine frame.

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