Fixing device for inner spraying of aluminum pipe

Abstract

The utility model discloses a fixing device for inner spraying of an aluminum pipe, and relates to the technical field of aluminum pipe spraying devices, in particular to the fixing device for inner spraying of the aluminum pipe, which comprises a belt wheel component, a fixing component, an inner coating cup and an inner coating bushing, the belt wheel component penetrates through the fixing component, and the belt wheel component is rotatably connected with the fixing component; the aluminum pipe is inserted into the cavity of the inner coating bush and the cavity of the inner coating cup, the aluminum pipe abuts against the inner coating bush, the inner coating bush deforms, and due to the fact that the inner space of the inner coating cup is limited, the inner coating bush wraps and compresses the aluminum pipe, and the aluminum pipe is effectively fixed; under the driving of the driving component, the whole belt wheel component can rotate, the belt wheel component drives the inner coating cup to rotate when rotating, the inner coating cup drives the aluminum pipe to rotate at a high speed, and the requirement for rotary spraying of the aluminum pipe can be effectively met; the inner coating lining is made of high polymer materials, is high in friction force and can fix the aluminum pipe in the high-speed rotating process of the aluminum pipe, so that the aluminum pipe meets the technological requirement of rotary spraying.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum tube spraying devices, and more particularly to the technical field of aluminum tube internal spraying devices, and in particular to a fixing device used for aluminum tube internal spraying. Background Art

[0002] At present, aluminum hoses are widely used in daily chemical products, pharmaceuticals and other fields, such as medicinal ointments, cosmetics, toothpaste, food packaging, etc. Among them, in the pharmaceutical field, the use requirements of aluminum hoses are particularly high, and they are particularly suitable for aluminum containers for holding drugs. In practical applications, since aluminum hoses are highly active, in order to avoid chemical reactions caused by direct contact between drugs and aluminum, which affects the quality of drugs, a very thin coating is generally sprayed on the inner wall of the aluminum hose. However, the coating needs to be sprayed evenly without missing any coating to ensure the isolation effect.

[0003] When spraying aluminum tubes, spray guns or disc atomizers are used to disperse the material to be sprayed into uniform and fine droplets by pressure or centrifugal force, and then apply them to the inner wall of the aluminum tube to be coated. The protective performance of the aluminum tube after internal coating can be greatly improved, and the coating adheres to the inner wall of the aluminum tube after curing.

[0004] In the process of spraying the inner wall of aluminum hose, it is necessary to use equipment to rotate the aluminum tube so that the spray gun nozzle can be aimed at various places on the inner wall of the aluminum tube and spray; at the same time, by rotating the aluminum tube, the paint on the inner wall of the aluminum tube is evenly dispersed under the action of centrifugal force and covers the inner wall of the aluminum tube, so that the paint can be more evenly coated on the inner wall of the aluminum tube. However, due to the influence of high-speed rotation, the aluminum hose is easy to loosen or fall off from the equipment. The loosening or falling of the aluminum tube causes uneven coating inside, which seriously affects the product yield and causes the aluminum tube product to be scrapped.

[0005] In the published Chinese patent application, the publication number is CN213494733U, and the patent name is: A curing device for coating inside an aluminum tube. Although the U-shaped block, mounting block, arc-shaped clamping block, slide groove and locking bolt can be used to fix the internal sprayed material to be cured, the possibility of the aluminum tube shaking during curing affecting the curing effect is reduced, and the curing effect of the device is improved. At the same time, the multiple channels formed by the multiple baffles can be used to place multiple aluminum tubes for curing, which improves the curing efficiency of the device. However, after the aluminum tube is clamped and fixed, the curing device shown in the prior art is in a stationary state, and then the spray gun is used to spray the inner wall of the aluminum tube. The aluminum tube cannot rotate, causing the paint sprayed on the inner wall of the aluminum tube to drip and pool, and the paint cannot be evenly coated on the inner wall of the aluminum tube. Therefore, the structural characteristics used in the prior art to fix the aluminum tube are not suitable for spraying paint when the aluminum tube is rotating.

[0006] In summary, the problems existing in the prior art are: the aluminum tube fixing device is not suitable for coating under high-speed rotation, and the inner wall of the aluminum tube cannot be evenly coated after being fixed. In order to solve the problems existing in the prior art, this application is specially proposed to solve them. Utility Model Content

[0007] 1. Technical issues to be resolved

[0008] In view of the deficiencies of the prior art, the utility model provides a fixing device for spraying inside an aluminum tube, which solves the problems raised in the above-mentioned background technology.

[0009] (II) Technical solution

[0010] To achieve the above objectives, the utility model is implemented through the following technical solutions: a fixing device for spraying inside an aluminum tube, comprising a pulley component, a fixing component, an inner coating cup, and an inner coating sleeve, the pulley component passes through the fixing component, and the pulley component is rotatably connected to the fixing component; the inner coating cup is installed at one end of the pulley component, and the inner coating sleeve is arranged at the end of the inner coating cup away from the pulley component, the inner coating cup and the inner coating sleeve are both provided with cavities that are interconnected and used to place the aluminum tube, and the inner coating sleeve is made of polymer material; the pulley component comprises a wheel axle and a wheel axle inner sleeve, the wheel axle inner sleeve is inserted into the interior of the wheel axle, and the wheel axle inner sleeve is fixedly connected to the wheel axle.

[0011] Optionally, the wheel axle consists of a raised portion and a cylindrical portion, and the raised portion is located in the middle of the cylindrical portion.

[0012] Optionally, the fixing component includes a pin shaft and two fixing sleeve assemblies, the two fixing sleeve assemblies are respectively mounted on the outer side walls of the two end portions of the wheel axle, and the two fixing sleeve assemblies are rotatably connected to the wheel axle, and the two ends of the pin shaft are fixedly mounted to the two fixing sleeve assemblies.

[0013] Optionally, the two fixing sleeve assemblies are respectively mounted on the outer side walls at both ends of the cylindrical portion of the wheel axle, and the two fixing sleeve assemblies are respectively located on both sides of the raised portion of the wheel axle.

[0014] Optionally, the fixed sleeve assembly includes an inner fixed sleeve, an outer fixed sleeve, and an inner bearing. The inner fixed sleeve is fixedly connected to the outer fixed sleeve. Mounting holes are provided in the middle of the inner fixed sleeve and the outer fixed sleeve. The inner bearing is arranged in the mounting holes of the inner fixed sleeve and the outer fixed sleeve, and the inner fixed sleeve and the outer fixed sleeve are rotatably connected to the wheel axle through the inner bearing.

[0015] Optionally, the fixed sleeve assembly also includes an outer bearing, which is arranged on one side of the inner bearing, and the inner and outer fixed sleeves are rotatably connected to the wheel axle via the outer bearing. A retaining ring is arranged on the outer side wall of the wheel axle and on the side of the outer bearing away from the inner bearing.

[0016] Optionally, an inner lining ring is sleeved on the middle outer wall of the pin shaft, support cylinders are sleeved on the outer walls at both ends of the pin shaft, and baffles are fixedly installed on the end heads of the pin shaft by bolts.

[0017] Optionally, a fixing device for spraying inside an aluminum tube further includes a driving component, which includes a servo motor, a pulley, and a belt. The pulley is installed on the output shaft end of the servo motor, and the pulley is connected to the wheel shaft through a belt.

[0018] Technical term explanation:

[0019] In the present invention, "aluminum tube" also refers to "aluminum hose".

[0020] (III) Beneficial effects

[0021] The utility model provides a fixing device for spraying inside an aluminum tube, which has the following beneficial effects:

[0022] The fixing device for internal spraying of aluminum tubes has the effect of fixing aluminum hoses through the coordinated arrangement of inner coating bushings, inner coating cups, fixing components, and pulley components. After being fixed, the aluminum hose can rotate at high speed under the drive of the driving component, meeting the need for coating the inner wall of the aluminum hose. The aluminum tube is inserted into the cavity of the inner coating bushing and the inner coating cup by using external equipment, and the inner coating bushing is pressed against by the aluminum tube, causing the inner coating bushing to deform. Due to the limited internal space of the inner coating cup, the inner coating bushing wraps and presses the aluminum tube, so that the aluminum tube is effectively fixed; under the drive of the driving component, the pulley component can rotate as a whole, and the inner coating cup is driven to rotate when the pulley component rotates, and the inner coating cup drives the aluminum tube to rotate at high speed, which can effectively meet the requirements of aluminum tube rotary spraying; the inner coating bushing is made of polymer material, and its friction is relatively high, so that the aluminum tube can be fixed during the high-speed rotation of the aluminum tube, so that the aluminum tube can adapt to the process requirements of rotary spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0024] Figure 1 This is a three-dimensional structural schematic diagram of a fixing device for spraying inside an aluminum tube according to the utility model;

[0025] Figure 2 This is a three-dimensional structural schematic diagram of a wheel axle of a fixing device for internal spraying of an aluminum tube according to the utility model;

[0026] Figure 3 This is a front view structural schematic diagram of a fixing device for spraying inside an aluminum tube according to the utility model;

[0027] Figure 4 The utility model is a schematic cross-sectional structure diagram of a fixing device for spraying inside an aluminum tube.

[0028] In the figure: 1. inner coating bushing; 2. inner coating cup; 3. axle; 301. raised portion; 302. cylinder portion; 4. inner fixing sleeve; 5. outer fixing sleeve; 7. supporting sleeve; 8. inner bearing; 9. outer bearing; 10. retaining ring; 11. pin shaft; 12. retaining plate; 13. inner lining ring; 14. inner sleeve of axle. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Embodiment 1

[0031] See also Figures 1 to 4 The utility model provides a technical solution: a fixing device for internal spraying of aluminum tubes, comprising a pulley component, a fixing component, an inner coating cup 2, and an inner coating bushing 1. The pulley component penetrates the fixing component, and the pulley component is rotatably connected with the fixing component. The inner coating cup 2 is installed at one end of the pulley component, and the inner coating bushing 1 is arranged at the end of the inner coating cup 2 away from the pulley component. The inner coating cup 2 and the inner coating bushing 1 are both provided with cavities that are interconnected and used to place the aluminum tube, and the inner coating bushing 1 is made of polymer material.

[0032] Among them, the inner coating cup 2 and the inner coating sleeve 1 are used to fix the aluminum tube. The aluminum tube is inserted into the cavity of the inner coating sleeve 1 and the inner coating cup 2 by using external equipment A (referring to the unexpected equipment of this device). The aluminum tube presses the inner coating sleeve 1, and the inner coating sleeve 1 is deformed. Since the internal space of the inner coating cup 2 is limited, the inner coating sleeve 1 wraps and presses the aluminum tube, so that the aluminum tube is effectively fixed. The functions of the fixing component: 1. It is used to fix the pulley component so that the pulley component can rotate on the fixing component; 2. It is used to fix the device shown in this application as a whole on the external equipment B. When the pulley component rotates, it drives the inner coating cup 2 to rotate, and the inner coating cup 2 drives the inner coating sleeve 1 and the aluminum tube to rotate at high speed.

[0033] The inner coating bushing 1 is made of polymer material. Specifically, the inner coating bushing 1 can be made of one or more of rubber, fiber, plastic, polymer adhesive, polymer coating, polymer-based composite material, etc.

[0034] The pulley component includes a wheel axle 3 and a wheel axle inner sleeve 14 . The wheel axle inner sleeve 14 is inserted into the wheel axle 3 , and the wheel axle inner sleeve 14 is fixedly connected to the wheel axle 3 .

[0035] The pulley component is arranged on the fixing component and can rotate on the fixing component.

[0036] A fixing device for spraying inside an aluminum tube also includes a driving component, which includes a servo motor, a pulley, and a belt. The pulley is installed at the output shaft end of the servo motor, and the pulley is connected to the wheel shaft 3 through a belt.

[0037] The driving component is used to drive the pulley component to rotate on the fixed component. After the servo motor is started, the pulley is driven to rotate, and the pulley drives the wheel shaft 3 in the pulley component to rotate as a whole through the belt.

[0038] Specifically, the axle 3 is composed of a protruding portion 301 and a cylindrical portion 302 , and the protruding portion 301 is located in the middle of the cylindrical portion 302 .

[0039] The raised portion 301 of the axle 3 is used to cooperate with the belt, and the belt is wound around the raised portion 301 of the axle 3. The barrel portion 302 is used to penetrate the fixed component, and the barrel portion 302 is rotatably connected to the fixed component.

[0040] Specifically, the fixing component includes a pin shaft 11 and two fixing sleeve assemblies. The two fixing sleeve assemblies are respectively installed on the outer side walls of the two ends of the wheel axle 3, and the two fixing sleeve assemblies are rotatably connected to the wheel axle 3. The two ends of the pin shaft 11 are fixedly installed with the two fixing sleeve assemblies.

[0041] The pin 11 has the following functions: 1. It is used to fix the two fixing sleeve assemblies so that the two fixing sleeve assemblies are fixedly connected through the pin 11; 2. It is used to cooperate with the external device B for installation, so that the device of the invention is installed as a whole on the external device B. The two fixing sleeve assemblies are used to support the wheel shaft 3, and the wheel shaft 3 can rotate on the two fixing sleeve assemblies.

[0042] The device of the invention also includes other parts and electrical components to meet the need of fixing the high-speed rotating aluminum tube and the need of evenly coating the paint on the aluminum tube when the aluminum tube rotates at a high speed.

[0043] When in use, the specific steps are as follows: 1. Fix the aluminum tube: use external equipment A to insert the aluminum tube into the cavity of the inner coating sleeve 1 and the inner coating cup 2. The aluminum tube presses the inner coating sleeve 1, and the inner coating sleeve 1 is deformed. Due to the limited internal space of the inner coating cup 2, the inner coating sleeve 1 wraps and presses the aluminum tube, so that the aluminum tube is effectively fixed.

[0044] Second, the device shown in the invention is moved as a whole to the paint spray gun by using external equipment B, and the spray gun nozzle is located inside the aluminum tube.

[0045] 3. Aluminum tube rotation: start the servo motor in the driving component, the servo motor output shaft drives the pulley to rotate, the pulley drives the wheel shaft 3 to rotate through the belt, the wheel shaft 3 drives the inner coating cup 2 at its end to rotate, and the inner coating cup 2 drives the aluminum tube to rotate at a high speed, which can effectively meet the process requirements of aluminum tube rotation spraying.

[0046] 3. Start the paint spray gun, and the paint spray gun sprays the paint through the nozzle. The paint is coated on the inner wall of the rotating aluminum tube, and the paint is evenly distributed due to the centrifugal force during rotation, and the paint is evenly distributed to form a coating.

[0047] Afterwards, the aluminum tube enters the curing process.

[0048] Embodiment 2

[0049] See also Figures 1 to 4 Compared with the first embodiment, the present embodiment has the following differences: the two fixing sleeve assemblies are respectively installed on the outer side walls at both ends of the cylinder portion 302 of the wheel axle 3, and the two fixing sleeve assemblies are respectively located on both sides of the raised portion 301 of the wheel axle 3.

[0050] The two fixing sleeve assemblies are arranged on both sides of the raised portion 301 of the axle 3 to prevent the belt from falling off. At the same time, the two fixing sleeve assemblies are arranged on both ends of the barrel portion 302 of the axle 3 to effectively stabilize the axle 3 and prevent the axle 3 from deflecting when rotating at high speed.

[0051] Specifically, the fixed sleeve assembly includes an inner fixed sleeve 4, an outer fixed sleeve 5, and an inner bearing 8. The inner fixed sleeve 4 is fixedly connected to the outer fixed sleeve 5. Mounting holes are provided in the middle of the inner fixed sleeve 4 and the outer fixed sleeve 5. The inner bearing 8 is arranged in the mounting holes of the inner fixed sleeve 4 and the outer fixed sleeve 5, and the inner fixed sleeve 4 and the outer fixed sleeve 5 are rotatably connected to the wheel axle 3 through the inner bearing 8.

[0052] The inner fixing sleeve 4 and the outer fixing sleeve 5 are rotatably connected to the wheel shaft 3 through the inner bearing 8, so that the wheel shaft 3 can rotate at high speed on the inner fixing sleeve 4 and the outer fixing sleeve 5 through the bearings under the drive of the driving component.

[0053] More specifically, the fixed sleeve assembly also includes an outer bearing 9, which is arranged on one side of the inner bearing 8. The inner fixed sleeve 4 and the outer fixed sleeve 5 are rotatably connected to the wheel axle 3 through the outer bearing 9. A retaining ring 10 is arranged on the outer side wall of the wheel axle 3 and on the side of the outer bearing 9 away from the inner bearing 8.

[0054] The outer bearing 9 is used to improve the rotational connection strength between the inner fixing sleeve 4 , the outer fixing sleeve 5 and the axle 3 , so as to meet the high-speed rotation requirement of the axle 3 .

[0055] More specifically, an inner lining ring 13 is sleeved on the outer wall of the middle part of the pin shaft 11, and support cylinders 7 are sleeved on the outer walls of both ends of the pin shaft 11. Blocking pieces 12 are fixedly installed on the ends of the pin shaft 11 by bolts.

[0056] The inner liner 13 serves as a cushion for the pin 11 to meet the need for fixing and installing the pin 11 and the external device B.

[0057] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fixing device for spraying inside an aluminum tube, characterized in that: The invention comprises a pulley component, a fixed component, an inner coating cup (2), and an inner coating bushing (1); the pulley component penetrates the fixed component, and the pulley component is rotatably connected to the fixed component; the inner coating cup (2) is installed at one end of the pulley component, and the inner coating bushing (1) is arranged at the end of the inner coating cup (2) away from the pulley component; the inner coating cup (2) and the inner coating bushing (1) are both provided with cavities that are interconnected and used to place an aluminum tube; and the inner coating bushing (1) is made of a polymer material; The pulley component comprises a wheel axle (3) and a wheel axle inner sleeve (14); the wheel axle inner sleeve (14) is inserted into the interior of the wheel axle (3), and the wheel axle inner sleeve (14) is fixedly connected to the wheel axle (3).

2. A fixing device for internal spraying of aluminum tubes according to claim 1, characterized in that: The wheel axle (3) is composed of a raised portion (301) and a cylindrical portion (302), and the raised portion (301) is located in the middle of the cylindrical portion (302).

3. A fixing device for internal spraying of aluminum tubes according to claim 2, characterized in that: The fixing component comprises a pin shaft (11) and two fixing sleeve assemblies. The two fixing sleeve assemblies are respectively mounted on the outer side walls of the two end portions of the wheel axle (3). The two fixing sleeve assemblies are rotatably connected to the wheel axle (3). The two end portions of the pin shaft (11) are fixedly mounted to the two fixing sleeve assemblies.

4. A fixing device for internal spraying of aluminum tubes according to claim 3, characterized in that: The two fixing sleeve assemblies are respectively mounted on the outer side walls at both ends of the cylindrical portion (302) of the wheel axle (3), and the two fixing sleeve assemblies are respectively located on both sides of the raised portion (301) of the wheel axle (3).

5. A fixing device for internal spraying of aluminum tubes according to claim 4, characterized in that: The fixing sleeve assembly comprises an inner fixing sleeve (4), an outer fixing sleeve (5), and an inner bearing (8); the inner fixing sleeve (4) is fixedly connected to the outer fixing sleeve (5); mounting holes are provided in the middle of the inner fixing sleeve (4) and the outer fixing sleeve (5); the inner bearing (8) is arranged in the mounting holes of the inner fixing sleeve (4) and the outer fixing sleeve (5); and the inner fixing sleeve (4) and the outer fixing sleeve (5) are rotatably connected to the wheel shaft (3) via the inner bearing (8).

6. A fixing device for internal spraying of aluminum tubes according to claim 5, characterized in that: The fixed sleeve assembly further comprises an outer bearing (9), wherein the outer bearing (9) is arranged on one side of the inner bearing (8), and the inner fixed sleeve (4) and the outer fixed sleeve (5) are rotatably connected to the wheel shaft (3) via the outer bearing (9). A retaining ring (10) is arranged on the outer side wall of the wheel shaft (3) and on the side of the outer bearing (9) away from the inner bearing (8).

7. A fixing device for internal spraying of aluminum tubes according to claim 3, characterized in that: The middle outer wall of the pin shaft (11) is sleeved with an inner lining ring (13), the outer walls at both ends of the pin shaft (11) are sleeved with support cylinders (7), and the end heads at both ends of the pin shaft (11) are fixed with baffles (12) by bolts.

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