Device for performing rod hot melting welding

Abstract

The utility model is applicable to the technical field of preform rod hot melting welding, and provides a device for preform rod hot melting welding, which comprises two groups of preform rod clamping components, a movable screw rod, a preform rod part, a heating component and a fixed connection component, the preform rod clamping components are suitable for clamping the preform rod part; the preform clamping assembly comprises a mounting plate, three sets of clamping jaws are arranged on one side of the mounting plate, a motor is arranged on the side, away from the clamping jaws, of the mounting plate, a driving gear is arranged at the output end of the motor, and a chuck gear is connected to the top end of the driving gear in a meshed mode; the movable screw rod is arranged at the bottom end of one group of preform rod clamping components and is suitable for driving the preform rod clamping components on the movable screw rod to move; and the preform rod part is arranged in the center of the preform rod clamping assembly. The device solves the problem of accuracy of the butt joint center of the prefabricated rod, and achieves the effects of shortening the hot melting welding time, improving the welding efficiency, improving the accuracy of the whole center after the prefabricated rod is lengthened and improving the hot melting welding quality.

Description

Technical Field

[0001] The utility model relates to the technical field of prefabricated rod hot-melt welding, and more particularly to a device for prefabricated rod hot-melt welding. Background Art

[0002] Preform hot-melt welding is a critical process that connects the preform body to its extension. In optical fiber manufacturing and other related industries, preforms are the core material for producing high-quality optical fibers. Proper preform extension can significantly improve the overall utilization rate of preform drawing, thereby reducing costs while improving production efficiency and product quality.

[0003] Currently, the main hot-melt welding method is mostly performed manually. During the welding operation, workers first heat the extension of the preform rod. Once the extension gradually melts under the high temperature, it is connected to the main preform rod. However, this manual welding method has a serious problem. Due to the limitations of manual operation, it is difficult to ensure the accuracy of the preform rod's docking center when docking the main preform rod and the extension. It is difficult for workers to completely align the centers of the two parts with the naked eye and manual operation. Even with the help of simple auxiliary tools, it is difficult to achieve the desired accuracy. This deviation in the docking center will have an impact on the subsequent processing.

[0004] Therefore, a device for hot-melt welding of preform rods is proposed to solve the problem of the accuracy of the butt joint center of the preform rods. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a device for hot melt welding of preform rods, which reduces the hot melt welding time, improves the welding efficiency, improves the overall center accuracy of the preform rod after lengthening, and improves the hot melt welding quality.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A device for hot-melt welding of preform rods comprises two sets of preform rod clamping assemblies, a movable screw, a preform rod portion, a heating assembly, and a fixing assembly. The preform rod clamping assemblies are suitable for clamping the preform rod portion. The preform rod clamping assemblies include a mounting plate with three sets of clamping jaws disposed on one side of the mounting plate. A motor is disposed on the side of the mounting plate away from the clamping jaws. A drive gear is disposed at the output end of the motor, and the top end of the drive gear is meshedly connected to a chuck gear. The movable screw is disposed at the bottom end of one set of the preform rod clamping assemblies and is suitable for driving the preform rod clamping assembly thereon to move. The preform rod portion is disposed at the center of the preform rod clamping assembly and is a preform rod product. The preform rod portion includes an extension rod with a preform rod body disposed at one end of the extension rod. The heating assembly is disposed on one side of one set of the preform rod clamping assemblies and is suitable for heating the extension rod. The fixing assembly is disposed outside the heating assembly and is suitable for providing shape support after the extension rod is heated and melted.

[0008] The utility model is further configured as follows: two groups of preform rod clamping assemblies are symmetrically arranged, three groups of clamping jaws are slidably connected to the mounting plate, and an annular groove is provided on one side of the clamping jaws close to the chuck gear.

[0009] The utility model is further configured as follows: the chuck gear is adapted to the shape of the clamping claw, and the chuck gear is slidably connected to the clamping claw.

[0010] By adopting the above technical solution, the driving motor drives the driving gear to rotate, and the driving gear engages with the chuck gear, so that the chuck gear rotates following the driving gear, but the rotation direction of the driving gear is opposite to that of the chuck gear. The annular groove opened by the clamping jaw cooperates with the chuck gear. When the chuck gear rotates, the clamping jaw and the chuck gear slide, so that the three groups of clamping jaws can move inward or outward to clamp the preform rod part. The clamping jaws are made of rubber material, which can effectively reduce the possibility of crushing the extension rod, improve the surface flatness of the extension rod, and facilitate subsequent processing and procedures.

[0011] The utility model is further configured as follows: the heating component includes a driving electric cylinder, a rotating cylinder is provided at the output end of the driving electric cylinder, a heater is provided at the output end of the rotating cylinder, and the inner wall diameter of the heater is larger than that of the extension rod.

[0012] By adopting the above technical solution, the heater heats the hot melt welding position of the extension rod and the preform rod body. After the heating is completed, the electric cylinder is driven to drive the heater to move to the side away from the movable screw rod, so that the heater is away from the hot melt welding position of the extension rod and the preform rod body. The rotating cylinder is driven to drive the heater to rotate and further away from the hot melt welding position. At this time, by driving the movable screw rod, the extension rod can be brought close to the preform rod body, and wait for cooling and shaping to complete the hot melt welding, thereby reducing the hot melt welding time and improving the welding efficiency.

[0013] The utility model is further configured as follows: the fixing assembly includes two groups of arc plates, the two groups of arc plates are symmetrically arranged, and a fixing cylinder is arranged on the arc plates near the center of the preform rod part.

[0014] The utility model is further configured as follows: a fixing plate is provided at the output end of the fixing cylinder, and the inner wall diameter of the fixing plate is consistent with that of the extension rod.

[0015] By adopting the above technical solution, when the heater completes heating the hot melt welding position and moves away from the extension rod, the extension rod will enter a soft flow state due to hot melting, and the fixing cylinder arranged on the outside of the heating component will be affected by the heater and the temperature will rise. At this time, the fixing cylinder is driven to drive the fixing plate to move toward the center of the extension rod, and the hot-melt extension rod will not be deformed until the extension rod is completely close to the preform rod body, waiting for cooling and shaping to complete the hot melt welding, achieve center alignment, improve the overall center accuracy of the preform rod after lengthening, and improve the quality of hot melt welding.

[0016] In summary, this application includes at least one of the following beneficial technical effects:

[0017] 1. The driving motor drives the driving gear to rotate, and the driving gear meshes with the chuck gear. The chuck gear rotates with the driving gear, but the driving gear rotates in the opposite direction to the chuck gear. The annular groove on the clamping jaw cooperates with the chuck gear. When the chuck gear rotates, the clamping jaw and the chuck gear slide, so that the three sets of clamping jaws can move inward or outward to clamp the preform rod. The clamping jaws are made of rubber material, which can effectively reduce the possibility of crushing the extension rod, improve the surface smoothness of the extension rod, and facilitate subsequent processing and procedures.

[0018] 2. The heater heats the hot melt welding position of the extension rod and the preform body. After the heating is completed, the electric cylinder is driven to drive the heater to move away from the movable screw rod, so that the heater is away from the hot melt welding position of the extension rod and the preform body. The rotary cylinder is driven to drive the heater to rotate and further away from the hot melt welding position. At this time, the extension rod can be moved close to the preform body by driving the movable screw rod, and the hot melt welding is completed after cooling and shaping, thereby reducing the hot melt welding time and improving the welding efficiency.

[0019] 3. When the heater completes heating the hot melt welding position and moves away from the extension rod, the extension rod will enter a soft flow state due to the hot melt, and the fixing cylinder set on the outside of the heating component will be affected by the heater and the temperature will rise. At this time, the fixing cylinder is driven to drive the fixing plate to move toward the center of the extension rod, and the hot-melt extension rod is fixed so that it will not deform until the extension rod is completely close to the preform body and waits for cooling and shaping to complete the hot melt welding, achieve center alignment, improve the overall center accuracy of the preform after lengthening, and improve the quality of hot melt welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic structural diagram of a device for hot-melt welding of preformed rods.

[0021] Figure 2 for Figure 1 A partial enlarged view of area A in the middle.

[0022] Figure 3 This is a partial exploded schematic diagram of the preform rod clamping assembly in the present invention.

[0023] Figure 4 It is a structural schematic diagram of the heating component in the present utility model.

[0024] Figure 5 It is a structural diagram of the fixed component in the utility model.

[0025] Figure 6 It is a structural schematic diagram of the preform rod part in the utility model.

[0026] Description of reference numerals: 1, preform clamping assembly; 11, mounting plate; 12, clamping claw; 13, motor; 14, driving gear; 15, chuck gear;

[0027] 2. Move the screw;

[0028] 3. Heating assembly; 31. Driving electric cylinder; 32. Rotating cylinder; 33. Heater;

[0029] 4. Fixed assembly; 41. Arc plate; 42. Fixed cylinder; 43. Fixed plate;

[0030] 5. Preform rod portion; 51. Extension rod; 52. Preform rod body. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] For example 1, please refer to Figure 1-6 , the utility model provides the following technical solutions:

[0034] Specifically refers to a device for hot melt welding of preform rods, see Figure 1-2, comprising two groups of preform rod clamping assemblies 1, a movable screw 2, a preform rod portion 5, a heating assembly 3 and a fixing assembly 4, wherein the preform rod clamping assembly 1 is suitable for clamping the preform rod portion 5; the movable screw 2 is arranged at the bottom end of one group of preform rod clamping assemblies 1, and the movable screw 2 is suitable for driving the preform rod clamping assembly 1 thereon to move; the preform rod portion 5 is arranged at the center of the preform rod clamping assembly 1, and the preform rod portion 5 is a preform rod product; the preform rod portion 5 includes an extension rod 51, and a preform rod body 52 is arranged at one end of the extension rod 51; the heating assembly 3 is arranged on one side of one group of preform rod clamping assemblies 1, and the heating assembly 3 is suitable for heating the extension rod 51; the fixing assembly 4 is arranged on the outside of the heating assembly 3, and the fixing assembly 4 is suitable for providing shape support after the extension rod 51 is heated and melted.

[0035] See Figure 3 The preform rod clamping assembly 1 includes a mounting plate 11, three groups of clamping jaws 12 are provided on one side of the mounting plate 11, a motor 13 is provided on the side of the mounting plate 11 away from the clamping jaws 12, a driving gear 14 is provided at the output end of the motor 13, and a chuck gear 15 is meshed and connected to the top of the driving gear 14; the two groups of preform rod clamping assemblies 1 are symmetrically arranged, the three groups of clamping jaws 12 are slidably connected to the mounting plate 11, an annular groove is provided on the side of the clamping jaws 12 close to the chuck gear 15, the chuck gear 15 is adapted in shape to the clamping jaw 12, and the chuck gear 15 is slidably connected to the clamping jaw 12.

[0036] Specifically, the driving motor 13 drives the driving gear 14 to rotate, and the driving gear 14 engages with the chuck gear 15, so that the chuck gear 15 rotates following the driving gear 14, but the rotation direction of the driving gear 14 is opposite to that of the chuck gear 15. The annular groove opened by the clamping jaws 12 cooperates with the chuck gear 15. When the chuck gear 15 rotates, the clamping jaws 12 slide with the chuck gear 15, so that the three groups of clamping jaws 12 can move inward or outward to clamp the preform rod part 5. The clamping jaws 12 are made of rubber material, which can effectively reduce the possibility of crushing the extension rod 51, improve the surface flatness of the extension rod 51, and facilitate subsequent processing and procedures.

[0037] See Figure 4-5 The heating component 3 includes a driving electric cylinder 31, a rotating cylinder 32 is provided at the output end of the driving electric cylinder 31, and a heater 33 is provided at the output end of the rotating cylinder 32. The inner wall diameter of the heater 33 is larger than the extension rod 51.

[0038] Specifically, the heater 33 heats the hot melt welding position of the extension rod 51 and the preform rod body 52. ​​After the heating is completed, the driving electric cylinder 31 is driven to drive the heater 33 to move to the side away from the movable screw rod 2, so that the heater 33 is away from the hot melt welding position of the extension rod 51 and the preform rod body 52. ​​The rotating cylinder 32 is driven to drive the heater 33 to rotate, further away from the hot melt welding position. At this time, by driving the movable screw rod 2, the extension rod 51 can be brought close to the preform rod body 52, waiting for cooling and shaping to complete the hot melt welding, thereby reducing the hot melt welding time and improving the welding efficiency.

[0039] See Figure 6 The fixing assembly 4 includes two sets of curved plates 41, which are symmetrically arranged. A fixing cylinder 42 is provided near the center of the preform portion 5 on each of the curved plates 41. A fixing plate 43 is provided at the output end of the fixing cylinder 42. The inner diameter of the fixing plate 43 is the same as that of the extension rod 51. When the heater 33 completes heating the hot melt welding position and moves away from the extension rod 51, the extension rod 51 enters a soft and fluid state due to the hot melt. At the same time, the fixing cylinder 42, which is located outside the heating assembly 3, is affected by the heater 33 and its temperature rises. At this time, the fixing cylinder 42 is driven to move the fixing plate 43 toward the center of the extension rod 51, fixing the hot melt extension rod 51 to prevent deformation. The extension rod 51 is completely close to the preform body 52, and then waits for cooling and finalization to complete the hot melt welding, achieve center alignment, improve the overall center accuracy of the lengthened preform, and enhance the quality of the hot melt welding.

[0040] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

Claims

1. A device for hot-melt welding of preform rods, characterized in that: It comprises two groups of preform rod clamping assemblies (1), a movable screw rod (2), a preform rod portion (5), a heating assembly (3) and a fixing assembly (4), wherein the preform rod clamping assembly (1) is suitable for clamping the preform rod portion (5); The preform rod clamping assembly (1) comprises a mounting plate (11), three groups of clamping jaws (12) are provided on one side of the mounting plate (11), a motor (13) is provided on the side of the mounting plate (11) away from the clamping jaws (12), a driving gear (14) is provided at the output end of the motor (13), and a chuck gear (15) is meshedly connected at the top end of the driving gear (14); The movable screw rod (2) is arranged at the bottom end of one group of preform rod clamping assemblies (1), and the movable screw rod (2) is suitable for driving the preform rod clamping assembly (1) thereon to move; The preform rod portion (5) is arranged at the center of the preform rod clamping assembly (1), and the preform rod portion (5) is a preform rod product; The preform rod portion (5) comprises an extension rod (51), and a preform rod body (52) is provided at one end of the extension rod (51); The heating assembly (3) is arranged on one side of one group of preform rod clamping assemblies (1), and the heating assembly (3) is suitable for heating the extension rod (51); The fixing assembly (4) is arranged outside the heating assembly (3), and the fixing assembly (4) is suitable for providing shape support after the extension rod (51) is heated and melted.

2. The device for hot-melt welding of preform rods according to claim 1, characterized in that: The two groups of preform rod clamping assemblies (1) are symmetrically arranged, and the three groups of clamping jaws (12) are slidably connected to the mounting plate (11). An annular groove is provided on one side of the clamping jaws (12) close to the chuck gear (15).

3. The device for hot-melt welding of preform rods according to claim 2, characterized in that: The chuck gear (15) is adapted in shape to the clamping claw (12), and the chuck gear (15) is slidably connected to the clamping claw (12).

4. The device for hot-melt welding of preform rods according to claim 3, characterized in that: The heating assembly (3) comprises a driving electric cylinder (31), a rotating cylinder (32) is provided at the output end of the driving electric cylinder (31), a heater (33) is provided at the output end of the rotating cylinder (32), and the inner wall diameter of the heater (33) is larger than that of the extension rod (51).

5. The device for hot-melt welding of preform rods according to claim 1, characterized in that: The fixing assembly (4) comprises two groups of arc-shaped plates (41), the two groups of arc-shaped plates (41) are symmetrically arranged, and a fixing cylinder (42) is arranged on the arc-shaped plates (41) near the center of the preform rod part (5).

6. The device for hot-melt welding of preform rods according to claim 5, characterized in that: The output end of the fixed cylinder (42) is provided with a fixed plate (43), and the inner wall diameter of the fixed plate (43) is consistent with that of the extension rod (51).

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