Device for firing glass tube

Abstract

The utility model provides a glass tube firing device which comprises a rack, a movable chuck assembly arranged on the left side of the upper end of the rack in a sliding mode, a fixed chuck assembly fixedly arranged on the right side of the upper end of the rack and a firing structure fixedly arranged on the front side of the upper end of the rack, and the firing structure is located between the movable chuck assembly and the fixed chuck assembly. The firing structure comprises a firing mounting seat, a firing driving air cylinder II arranged on the front side of the firing mounting seat, a firing connecting seat arranged at the output end of the firing driving air cylinder II, a driving air cylinder I arranged on the side wall of the firing connecting seat, and a firing fixing seat arranged at the output end of the firing driving air cylinder I; and the firing spray head is arranged on the side wall of the firing fixing seat. The firing driving air cylinder I and the firing driving air cylinder II are used as power sources of the firing spray head, so that compared with a comparison file, the device for firing the glass tube has the advantages of being small in occupied space and compact in structure.

Description

Technical Field

[0001] The utility model relates to a glass tube processing device, in particular to a glass tube firing device. Background Art

[0002] Currently, Chinese patent publication number CN111499164A discloses a glass tube heating and firing device for manufacturing high-borosilicate glass containers. The device comprises a fixed frame, to which a gas canister is fixed. The fixed frame is equipped with a translation mechanism driven by a motor. The translation mechanism is equipped with a screw sleeve. A limiter is fixed to the bottom of the screw sleeve. A nozzle connected to the gas canister is slidably mounted on the limiter. The screw sleeve is equipped with a lifting mechanism for vertically adjusting the nozzle. The translation mechanism includes a screw coaxially fixed to the output shaft of the motor. The screw sleeve is threadedly mounted on the screw. A horizontal rod is horizontally fixed to the fixed frame. A limiter is slidably mounted on the horizontal rod. A vertical tube is connected to the nozzle, and the vertical tube and the gas canister are connected via a bellows. The lifting mechanism includes a lifting gear rotatably mounted on the screw sleeve. The lifting gear is meshed with a spur rack fixed to the side wall of the vertical tube. However, in the above-mentioned firing device, the translation mechanism and the lifting mechanism for controlling the movement of the nozzle have the disadvantages of occupying a large space and having a relatively loose structure. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a device for firing a glass tube, which has the advantages of occupying less space and having a more compact structure.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a device for firing a glass tube, comprising a frame, a movable chuck assembly slidably arranged on the left side of the upper end of the frame, a fixed chuck assembly fixedly arranged on the right side of the upper end of the frame, and a firing structure fixedly arranged on the front side of the upper end of the frame, the firing structure is located between the movable chuck assembly and the fixed chuck assembly, and is used to fire the glass tube blank clamped by the movable chuck assembly and the fixed chuck assembly, the firing structure comprises a firing mounting seat, a second firing drive cylinder arranged on the front side of the firing mounting seat, a firing connecting seat arranged at the output end of the second firing drive cylinder, a first firing drive cylinder arranged at the side wall of the firing connecting seat, a firing fixed seat arranged at the output end of the first firing drive cylinder, and a firing nozzle arranged at the side wall of the firing fixed seat.

[0005] According to the above technical solution, when in use, the glass tube blank is placed between the movable chuck assembly and the fixed chuck assembly, and the glass tube blank is clamped and fixed by the movable chuck assembly and the fixed chuck assembly.

[0006] When the movable and fixed chuck assemblies clamp the glass tube blank, firing drive cylinder 1 drives the firing nozzle toward the glass tube blank until it is directly below the glass tube blank. During the firing process, firing drive cylinder 2 can be used to move the firing nozzle left and right to fire different positions of the glass tube blank, thereby obtaining a more uniformly shaped glass tube. When the glass tube is fired, the firing drive cylinder drives the firing nozzle away from the glass tube blank, staggering the firing nozzle and the glass tube.

[0007] By using the firing drive cylinder 1 and the firing drive cylinder 2 as the power source of the firing nozzle, the above-mentioned glass tube firing device has the advantages of occupying less space and having a more compact structure compared with the comparative documents.

[0008] Preferably, two air inlets are provided on the side wall of the firing nozzle for connecting combustible gas and inert gas respectively.

[0009] The above technical solution allows the flame state to be altered by changing the intake rates of combustible gas and inert gas. Increasing the intake rate of combustible gas and decreasing the intake rate of inert gas strengthens the flame. Decreasing the intake rate of combustible gas and increasing the intake rate of inert gas weakens the flame.

[0010] Preferably, the movable chuck assembly includes a movable base slidably arranged at the upper end of the frame, a spindle structure 1 fixedly arranged at the upper end of the movable base, a three-claw clamping structure 1 fixedly arranged at the right end of the spindle structure 1, and a driving structure 1 fixedly arranged at the upper end of the frame, and the output end of the driving structure 1 is connected to the movable base to drive the movable base close to or away from the fixed chuck assembly.

[0011] Through the above technical solution, the main shaft structure 1 can not only control the three-claw clamping structure 1 to clamp or loosen the glass tube blank, but also drive the three-claw clamping structure 1 to rotate circumferentially after the three-claw clamping structure 1 clamps the glass tube blank.

[0012] Preferably, the driving structure 1 includes a servo motor fixedly arranged at the upper end of the frame, and a lead screw fixedly arranged at the output end of the servo motor, and the lead screw passes through the movable base and is threadedly connected to the movable base.

[0013] Through the above technical solution, when in use, the servo motor drives the screw to rotate circumferentially, and the screw drives the movable base threadedly connected thereto to move, so that the three-jaw clamping structure moves closer to or away from the fixed chuck assembly.

[0014] Preferably, the fixed chuck assembly includes a fixed base fixedly arranged at the upper end of the frame, a second spindle structure fixedly arranged at the upper end of the fixed base, and a second three-claw clamping structure fixedly arranged at the left end of the second spindle structure.

[0015] Through the above technical solution, the main shaft structure 2 can not only control the three-jaw clamping structure 2 to clamp or loosen the glass tube blank, but also drive the three-jaw clamping structure 2 to rotate circumferentially after the three-jaw clamping structure 2 clamps the glass tube blank.

[0016] Preferably, a glass tube receiving structure is provided on the rear side of the upper end of the frame, and the glass tube receiving structure is located between the movable chuck assembly and the fixed chuck assembly. The glass tube receiving structure includes a receiving bracket, a receiving drive cylinder fixedly arranged on the right side of the receiving bracket, a receiving mounting block fixedly arranged on the output end of the receiving drive cylinder, and a receiving hopper fixedly arranged on the right side of the receiving mounting block.

[0017] With the above technical solution, when the glass tube is fired, the receiving hopper is controlled by the receiving drive cylinder to move toward the side of the three-claw clamping structure 2 until it moves directly below the three-claw clamping structure 2. When the three-claw clamping structure 2 releases the glass tube, the glass tube falls into the receiving hopper. The glass tube receiving structure configured as above has the advantage of a high degree of automation, which can significantly improve the production capacity of the above-mentioned glass tube firing device.

[0018] Preferably, a buffer pad is provided on the inner side of the receiving hopper.

[0019] Through the above technical solution, when the glass tube falls into the inner side of the receiving hopper, the buffer pad can play a buffering role, making the glass tube less likely to be damaged.

[0020] Preferably, a waste guide plate extending obliquely downward is provided on the left side of the movable base, the upper end of the waste guide plate is located below the three-jaw clamping structure 1, and the lower end of the waste guide plate extends away from the fixed clamping head assembly.

[0021] With this technical solution, when the three-jaw clamping structure releases excess glass tube blanks, the glass tube blanks fall into the waste guide plate and move along the waste guide plate, achieving centralized waste recovery. The lower end of the waste guide plate extends away from the fixed chuck assembly to avoid the firing tools.

[0022] Preferably, a material receiving drive cylinder is provided on the side wall of the movable base, and the output end of the material receiving drive cylinder is connected to the waste guide plate to drive the waste guide plate to approach or move away from the movable base.

[0023] With the above technical solution, when the glass tube blank needs to be fired, the material receiving drive cylinder drives the waste guide plate to move toward the movable base to avoid the firing tools. When the glass tube is fired, the material receiving drive cylinder drives the waste guide plate away from the movable base until the upper end of the waste guide plate moves directly below the three-jaw clamping structure 1. Then, when the three-jaw clamping structure 1 releases the excess glass tube blank, the glass tube blank falls into the waste guide plate and moves along the waste guide plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of an embodiment;

[0025] Figure 2 A partial schematic diagram of an embodiment Figure 1 ;

[0026] Figure 3 A partial schematic diagram of an embodiment Figure 2 ;

[0027] Figure 4 A partial schematic diagram of an embodiment Figure 3 .

[0028] Reference numerals: 1, frame; 2, movable chuck assembly; 21, movable base; 22, spindle structure 1; 23, three-jaw clamping structure 1; 24, drive structure 1; 241, servo motor; 242, lead screw; 3, fixed chuck assembly; 31, fixed base; 32, spindle structure 2; 33, three-jaw clamping structure 2; 4, glass tube receiving structure; 41, receiving bracket; 42, receiving drive cylinder; 43, receiving mounting block; 44, receiving hopper; 5 , buffer pad; 6. Material receiving drive cylinder; 7. Waste guide plate; 8. Extension bracket; 9. Blank supporting seat; 10. Blank supporting groove; 11. Opening; 12. Feeding bracket; 13. Feeding drive cylinder; 14. Feeding structure; 15. Firing structure; 151. Firing drive cylinder 1; 152. Firing fixing seat; 153. Firing nozzle; 154. Firing mounting seat; 155. Firing drive cylinder 2; 156. Firing connecting seat; 16. Air inlet. DETAILED DESCRIPTION

[0029] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings to make the technical solutions of the present invention easier to understand and grasp.

[0030] A glass tube firing device, such as Figures 1 to 4As shown, the frame 1 includes a movable chuck assembly 2 slidably mounted on the left side of the upper end of the frame 1, and a fixed chuck assembly 3 fixedly mounted on the right side of the upper end of the frame 1. When in use, a glass tube blank is placed between the movable chuck assembly 2 and the fixed chuck assembly 3, and the movable chuck assembly 2 and the fixed chuck assembly 3 clamp the glass tube blank.

[0031] The movable chuck assembly 2 includes a movable base 21 slidably mounted on the upper end of the frame 1, a spindle structure 22 fixedly mounted on the upper end of the movable base 21, a three-jaw clamping structure 23 fixedly mounted on the right end of the spindle structure 22, and a drive structure 24 fixedly mounted on the upper end of the frame 1. The movable base 21 is slidably connected to the upper end of the frame 1 via two parallel slide rails, thereby ensuring smooth sliding of the movable base 21. The spindle structure 22 not only controls the three-jaw clamping structure 23 to clamp or release the glass tube blank, but also drives the three-jaw clamping structure 23 to rotate circumferentially after the three-jaw clamping structure 23 has clamped the glass tube blank. The output end of the drive structure 24 is connected to the movable base 21 to drive the movable base 21 toward or away from the fixed chuck assembly 3.

[0032] Drive structure 1 24 comprises a servo motor 241 fixedly mounted at the top end of frame 1 and a lead screw 242 fixedly mounted at the output end of servo motor 241. Lead screw 242 extends from left to right through movable base 21 and is threadedly connected to movable base 21. During operation, servo motor 241 drives lead screw 242 to rotate circumferentially, which in turn moves movable base 21, thereby causing three-jaw clamping structure 1 23 to move closer to or further from fixed chuck assembly 3.

[0033] The fixed chuck assembly 3 comprises a fixed base 31 fixedly mounted at the upper end of the frame 1, a second spindle structure 32 fixedly mounted at the upper end of the fixed base 31, and a second three-jaw clamping structure 33 fixedly mounted at the left end of the second spindle structure 32. The second spindle structure 32 not only controls the second three-jaw clamping structure 33 to tighten or loosen the glass tube blank, but also drives the second three-jaw clamping structure 33 to rotate circumferentially after the third three-jaw clamping structure 33 has tightened the glass tube blank. In this embodiment, the central axis of the second three-jaw clamping structure 33 coincides with the central axis of the first three-jaw clamping structure 23.

[0034] When the glass tube needs to be fired, one end of the glass tube blank is first clamped and fixed by the three-claw clamping structure 1 23, and then the movable base 21 is driven to move toward the side of the fixed base 31 by the driving structure 1 24 until the other end of the glass tube blank enters the three-claw clamping structure 2 33, and then the other end of the glass tube blank is clamped and fixed by the three-claw clamping structure 2 33, and finally the glass tube blank is driven to rotate circumferentially by the main shaft structure 1 22 and the main shaft structure 2 32.

[0035] When the glass tube firing process is completed, the glass tube is loosened by the three-claw clamping structure 2 33, so that the glass tube automatically falls down. At the same time, the movable base 21 is driven by the driving structure 1 24 to move away from the fixed base 31 until the movable base 21 is reset. Then, the excess glass tube blank is loosened by the three-claw clamping structure 1 23, so that the glass tube blank automatically falls down.

[0036] A glass tube receiving structure 4 is located at the rear upper end of the frame 1. Positioned between the movable chuck assembly 2 and the fixed chuck assembly 3, it receives glass tubes dropped from the three-jaw clamping structure 2 33. The glass tube receiving structure 4 comprises a receiving bracket 41, a receiving drive cylinder 42 fixedly mounted to the right of the receiving bracket 41, a receiving mounting block 43 fixedly mounted at the output end of the receiving drive cylinder 42, and a receiving hopper 44 fixedly mounted to the right of the receiving mounting block 43.

[0037] When the glass tube is fired, the receiving hopper 44 is controlled by the receiving driving cylinder 42 to move toward the side of the three-claw clamping structure 2 33 until the receiving hopper 44 moves to the bottom of the three-claw clamping structure 2 33 . In this way, when the three-claw clamping structure 2 33 releases the glass tube, the glass tube will fall into the receiving hopper 44 .

[0038] A buffer pad 5 is provided on the inner side of the receiving hopper 44. When the glass tube falls into the inner side of the receiving hopper 44, the buffer pad 5 can play a buffering role, so that the glass tube is not easily damaged.

[0039] A material receiving drive cylinder 6 is provided on the side wall of the movable base 21, and a waste guide plate 7 extending obliquely downward is fixedly provided at the output end of the material receiving drive cylinder 6. The upper end of the waste guide plate 7 is located below the three-claw clamping structure 23, and the lower end of the waste guide plate 7 extends to the side away from the fixed chuck assembly 3.

[0040] When the glass tube blanks need to be fired, the receiving drive cylinder 6 drives the waste guide plate 7 toward the movable base 21 to avoid the firing tools. When the glass tubes are fired, the receiving drive cylinder 6 drives the waste guide plate 7 away from the movable base 21 until the upper end of the waste guide plate 7 moves directly below the three-jaw clamping structure 1 23. When the three-jaw clamping structure 1 23 releases the excess glass tube blanks, the glass tube blanks fall into the waste guide plate 7 and move along the waste guide plate 7.

[0041] An extension bracket 8 is fixedly mounted on the left side of the receiving and mounting block 43. A blank carrier 9 is fixedly mounted on the upper end of the extension bracket 8. A blank carrier slot 10 is defined at the upper end of the blank carrier 9 for receiving glass tube blanks. During use, glass tube blanks are placed one by one into the blank carrier slot 10. The receiving and mounting block 43 is then moved to transport the glass tube blanks between the first and second three-jaw clamping structures 23 and 33.

[0042] An opening 11 is formed in the middle of the upper end of the blank support seat 9. The opening 11 is connected to the blank support groove 10 and extends through the blank support seat 9 in the front-to-back direction. The addition of the opening 11 reduces the contact area between the blank support seat 9 and the glass tube blank, making it easier to remove and place the glass tube blank.

[0043] A feed bracket 12 is fixedly mounted on the rear upper end of the frame 1. A feed drive cylinder 13 is mounted on the upper end of the feed bracket 12. A receiving bracket 41 is fixedly mounted on the output end of the feed drive cylinder 13. When the three-jaw clamping structure 23 clamps one end of the glass tube blank, the feed drive cylinder 13 drives the receiving bracket 41 downward, separating the blank support 9 from the glass tube blank.

[0044] A feeding structure 14 is fixedly provided on the upper end of the feeding bracket 12 , and a discharge end of the feeding structure 14 is connected to the blank carrying groove 10 of the blank carrying seat 9 , so as to place the glass tube blanks into the blank carrying groove 10 one by one.

[0045] A firing structure 15 is provided on the front side of the upper end of the frame 1 . The firing structure 15 is located between the movable chuck assembly 2 and the fixed chuck assembly 3 and is used to fire the glass tube blank clamped by the movable chuck assembly 2 and the fixed chuck assembly 3 .

[0046] The firing mechanism 15 comprises a firing drive cylinder 151, a firing mount 152 located at the output end of the firing drive cylinder 151, and a firing nozzle 153 located on the sidewall of the firing mount 152. When the movable chuck assembly 2 and the fixed chuck assembly 3 clamp the glass tube blank, the firing drive cylinder 151 drives the firing nozzle 153 toward the glass tube blank until it is directly below the glass tube blank. When the glass tube is fired, the firing drive cylinder drives the firing nozzle 153 away from the glass tube blank, causing the firing nozzle 153 to be offset from the glass tube.

[0047] The firing structure 15 also includes a firing mounting base 154 disposed on the front side of the fixed base 31, a second firing drive cylinder 155 disposed on the front side of the firing mounting base 154, and a firing connection base 156 disposed at the output end of the second firing drive cylinder 155. The first firing drive cylinder 151 is disposed on the side wall of the firing connection base 156. During the firing process of the glass tube blank, the second firing drive cylinder 155 can be used to drive the firing nozzle 153 to move left and right, thereby firing different positions of the glass tube blank, thereby obtaining a glass tube with a more uniform shape.

[0048] Two air inlets 16 are provided on the sidewall of the firing nozzle 153, respectively for connecting the combustible gas and the inert gas. During operation, the flame state can be altered by varying the amount of combustible gas and inert gas supplied. Increasing the combustible gas flow and decreasing the inert gas flow strengthens the flame. Decreasing the combustible gas flow and increasing the inert gas flow weakens the flame.

[0049] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementation methods. Any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of protection required by the present invention.

Claims

1. A device for firing a glass tube, characterized by: The invention comprises a frame (1), a movable clamping head assembly (2) slidably arranged on the left side of the upper end of the frame (1), a fixed clamping head assembly (3) fixedly arranged on the right side of the upper end of the frame (1), and a firing structure (15) fixedly arranged on the front side of the upper end of the frame (1); the firing structure (15) is located between the movable clamping head assembly (2) and the fixed clamping head assembly (3) and is used to fire the glass tube blank clamped by the movable clamping head assembly (2) and the fixed clamping head assembly (3); and the firing structure (15) is fixedly arranged on the front side of the upper end of the frame (1). The structure (15) includes a firing mounting seat (154), a firing driving cylinder 2 (155) arranged on the front side of the firing mounting seat (154), a firing connecting seat (156) arranged at the output end of the firing driving cylinder 2 (155), a firing driving cylinder 1 (151) arranged at the side wall of the firing connecting seat (156), a firing fixing seat (152) arranged at the output end of the firing driving cylinder 1 (151), and a firing nozzle (153) arranged at the side wall of the firing fixing seat (152).

2. A glass tube firing device according to claim 1, characterized in that: Two air inlets (16) are provided on the side wall of the firing nozzle (153) for connecting combustible gas and inert gas respectively.

3. The glass tube firing device according to claim 1, wherein: The movable chuck assembly (2) comprises a movable base (21) slidably arranged at the upper end of the frame (1), a main shaft structure (22) fixedly arranged at the upper end of the movable base (21), a three-claw clamping structure (23) fixedly arranged at the right end of the main shaft structure (22), and a driving structure (24) fixedly arranged at the upper end of the frame (1), wherein the output end of the driving structure (24) is connected to the movable base (21) for driving the movable base (21) to move closer to or away from the fixed chuck assembly (3).

4. The glass tube firing device according to claim 3, wherein: The driving structure (24) comprises a servo motor (241) fixedly arranged at the upper end of the frame (1), and a lead screw (242) fixedly arranged at the output end of the servo motor (241); the lead screw (242) passes through the movable base (21) and is threadedly connected to the movable base (21).

5. The glass tube firing device according to claim 1, wherein: The fixed chuck assembly (3) comprises a fixed base (31) fixedly arranged at the upper end of the frame (1), a second spindle structure (32) fixedly arranged at the upper end of the fixed base (31), and a second three-claw clamping structure (33) fixedly arranged at the left end of the second spindle structure (32).

6. The glass tube firing device according to claim 1, characterized in that: A glass tube receiving structure (4) is provided at the rear side of the upper end of the frame (1), and the glass tube receiving structure (4) is located between the movable clamp assembly (2) and the fixed clamp assembly (3). The glass tube receiving structure (4) comprises a receiving bracket (41), a receiving drive cylinder (42) fixedly arranged on the right side of the receiving bracket (41), a receiving mounting block (43) fixedly arranged at the output end of the receiving drive cylinder (42), and a receiving hopper (44) fixedly arranged on the right side of the receiving mounting block (43).

7. The glass tube firing device according to claim 6, characterized in that: A buffer pad (5) is provided on the inner side of the receiving hopper (44).

8. The glass tube firing device according to claim 3, characterized in that: A waste guide plate (7) extending obliquely downward is provided on the left side of the movable base (21), the upper end of the waste guide plate (7) is located below the three-claw clamping structure (23), and the lower end of the waste guide plate (7) extends away from the fixed clamping head assembly (3).

9. The glass tube firing device according to claim 8, characterized in that: A material receiving drive cylinder (6) is provided on the side wall of the movable base (21), and an output end of the material receiving drive cylinder (6) is connected to the waste guide plate (7) for driving the waste guide plate (7) to move closer to or away from the movable base (21).

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