Airflow suspension tank entering device

Abstract

The utility model belongs to the technical field of two-piece can manufacturing, and particularly relates to an airflow suspension can entering device. The airflow suspension tank entering device comprises more than one group of air knife components; the air knife assembly comprises an air storage chamber and an air exhaust face arranged on the air storage chamber, and further comprises an air inlet assembly communicating with the air storage chamber. The exhaust faces of the air knife assemblies are oppositely arranged and spaced by a certain distance, so that a suspension air channel allowing a tank to pass through is formed between the exhaust faces. The air knife assemblies are matched with one another to form a suspension channel for discharging two cans, so that the probability that the cans collide with other devices when entering the cans at a high speed is reduced, the rejection rate caused by collision of the two cans is effectively reduced, the roots of the cans are basically free of collision or indentation at the same speed compared with a traditional can entering mode, and the service life of the cans is prolonged. The color printing quality is obviously improved, and meanwhile the production efficiency is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to two piece can manufacturing technical field, concretely relates to a kind of airflow suspension inlet can device. BACKGROUND

[0002] Two piece can is a kind of container commonly seen in food industry, which is composed of can body and can cover, wherein the can body is made of stretched aluminum plate or tin-plated steel plate, so that the can bottom and the can body become a whole. Since the can body is directly formed by stamping process, it is leakproof, and the leakage detection process can be omitted to ensure product quality. Two piece cans do not need to be welded and sealed, which avoids lead pollution of soldering tin cans and ensures product hygiene. Since the can body and the can bottom do not need to be welded, color printing can be directly performed on the can body, so the printing effect is better.

[0003] The common color printing process of two piece can body is to sequentially sleeve two piece cans on a rotating turntable, and the turntable drives the two piece cans to rotate and sequentially pass through a roller brush, so as to print a designed pattern on the can body. In order to more quickly perform color printing and facilitate the turntable to receive two piece cans to be color printed, a height difference is usually provided between the inlet and the turntable of the color printing machine, and the two piece cans are automatically fed into the inlet without interruption under the action of gravity. In the traditional color printing process, a guide groove is provided between the inlet and the turntable to control the falling direction of the two piece cans. However, the two piece cans are prone to collision during falling, especially the root of the can, which is prone to indentation, affecting the subsequent color printing process and the quality of the final product.

[0004] To solve the above problems, as disclosed in patent CN201520166895.6, a spiral descending device is provided between the inlet and the color printing turntable. In use, empty cans slide down along the spiral conveying rod to the full-spraying turntable for spraying. The conveying speed is synchronized with the working speed of the full-spraying machine, ensuring the orderly and stable spraying of empty cans. However, this technical solution can reduce the impact of empty cans, and the empty cans need to continuously rub against the spiral conveying rod during falling, which is more likely to cause damage to the can body and affect the color printing effect. Moreover, the falling speed of the empty cans is slow, which is difficult to meet the requirements of automatic and rapid production of two piece cans. UTILITY MODEL CONTENTS

[0005] The utility model is to overcome the defects in the prior art that two piece cans are prone to impact and wear during feeding in the high-speed color printing process, which affects the subsequent color printing effect. The utility model provides an airflow suspension inlet can device to overcome the above defects.

[0006] To achieve the above purpose, the utility model realizes the following technical solutions:

[0007] An airflow suspension inlet can device, comprising:

[0008] The wind knife assembly includes an air storage chamber and an air exhaust surface arranged on the air storage chamber, and further includes an air inlet assembly connected with the air storage chamber.

[0009] The two-piece can is composed of a can body and a can cover. The can body is formed by punching a circular aluminum plate or tin-plated steel plate on a punch press, thereby forming a structure in which the can bottom and the can body are integrated. In the production process of the two-piece can, in order to facilitate printing of patterns on the can body, color printing is usually performed before the can cover is installed. However, in this way, the impact resistance of the can body as a whole is poor due to the lack of reinforcement of the can cover. In addition, without the can cover, the center of gravity of the can body is closer to the can root portion, so that the can root portion is particularly prone to being dented by knocking during the production process.

[0010] With the further improvement of automation level, the color printing speed of the color printing machine for the two-piece can is also increasing. Therefore, the can feeding speed needs to be matched with the color printing speed. In the traditional color printing process, a certain height difference is usually arranged between the can feeding opening and the rotating disc of the color printing machine, so that the two-piece cans are automatically fed without interruption by the action of gravity. With the increase of the can feeding speed, the impact force received by the two-piece cans when falling and colliding with the guide groove is also greater. As described above, the center of gravity of the can body is concentrated in the can root portion, so that the can root portion first contacts other devices when falling, and the impact force received is also greater, resulting in an increase in the frequency of wear and even denting. Therefore, in order to control the can root knocking scrap rate, the color printing speed is usually limited to below 1300 cpm.

[0011] Therefore, in order to reduce the occurrence of can root knocking and improve the color printing speed, the utility model discloses an air flow suspension can feeding device which discards the traditional guide groove can feeding mode and guides the falling direction of the two-piece cans by air flow to reduce the impact force of the can root portion contacting the device. The air flow suspension can feeding device of the utility model includes one or more wind knife assemblies, each of which mainly includes an air inlet assembly, an air storage chamber and an air exhaust surface. When the gas enters the air storage chamber through the air inlet assembly, the gas first fills the entire air storage chamber, and then is discharged through the air exhaust surface arranged on the air storage chamber, so as to ensure that the air volume at different positions on the entire air exhaust surface is basically the same. The two wind knife assemblies are arranged oppositely, so that the air exhaust surfaces form a suspension air channel allowing the cans to pass through. After the can body enters the air channel, it can be in a suspended state due to the action of the upper and lower air exhaust surfaces, thereby avoiding collision with other devices. Then, the can body slides out of the air channel under the action of gravity, thereby completing the can feeding process. In this way, the requirement of high-speed can feeding is met, and the probability of can body knocking and scrapping is reduced.

[0012] As preferred, at least one side of the air exhaust surface is provided with air exhaust openings. As described above, the tank root is more vulnerable to collision, and the weight of the tank body is concentrated on the tank root, so on the air exhaust surface, a plurality of air exhaust openings can be arranged along the air exhaust surface, and the wind force received by different positions of the tank body is adjusted by the arrangement of the air exhaust openings. In practice, the air exhaust openings can be arranged only on the side close to the tank root, so that the exhaust air first contacts the tank root and provides a larger blowing force to it. The blocked air flows to the tank head together to support the tank body, while the other air exhaust surface applies a blowing force to the tank root to prevent the tank body from deviating from the air duct, and finally the tank body is balanced in the air duct.

[0013] As further preferred, the air exhaust openings are unevenly arranged on the air exhaust surface. Due to the high speed of the tank, in practice, the air exhaust openings can be more densely arranged around the outlet of the suspension air duct, and the air exhaust openings can be more sparsely arranged at the inlet of the tank.

[0014] As preferred, the air inlet assembly comprises a gas distribution funnel, the gas distribution funnel comprises an air outlet opening connected with the air storage chamber, and an air inlet opening with an area smaller than the air outlet opening. In order to better fill the air storage chamber with air, an air distribution funnel is specially installed on the air inlet assembly, a taper is formed between the small air inlet opening and the large air outlet opening, which facilitates the diffusion of air and better blows into the edge of the air storage chamber, and facilitates the control of the air volume output by the air exhaust surface.

[0015] As further preferred, the air inlet assembly further comprises an air volume adjusting device arranged on the air inlet opening. In the actual use process of the utility model, the air inlet speed needs to be adjusted to ensure the balance of the tank body in the suspension air duct, and by installing the air volume adjusting device at the air inlet opening position, the size of the air outlet of the air exhaust surface can be controlled at any time during the operation of the device.

[0016] As further preferred, the air volume adjusting device comprises an adjusting plate connected with the air inlet opening, and a plug plate inserted on the adjusting plate for changing the area of the air inlet opening. In order to facilitate the control of the air volume, the utility model sets a plug plate device at the air inlet opening, the positioning channel on the adjusting plate is sleeved with the air inlet opening, and then the plug plate is inserted on the adjusting plate, and the air volume is adjusted by the size of the plug plate shielding the air inlet opening.

[0017] As further preferred, the edge of the plug plate is provided with a bending part for convenient holding.

[0018] As further preferred, the adjusting plate is provided with a fastener for fixing the position of the plug plate. When the air inlet volume is large, the plug plate may move under the influence of the wind, which is not conducive to the stable operation of the device. Therefore, in practice, a fastening bolt can be arranged on the adjusting plate, the bottom end of the fastening bolt abuts against the plug plate, and the position of the plug plate is fixed by tightening the bolt.

[0019] As preferred, each group of air knife assembly is divided into an upper air knife assembly and a lower air knife assembly, the exhaust surface of the upper air knife assembly is an outward convex arc surface, the exhaust surface of the lower air knife assembly is an inward concave arc surface, so that the suspension air duct formed between the exhaust surfaces is arc-shaped. On the one hand, the arc-shaped inlet channel can make the tank body more stable when sliding out of the suspension air duct, reducing the knocking; on the other hand, the arc-shaped design can make the exhaust of the lower air knife more concentrated, providing greater blowing force.

[0020] As further preferred, the upper air knife assembly is further provided with a positioning member for fixing the upper air knife group.

[0021] Therefore, the utility model has the following beneficial effects:

[0022] (1) The utility model discloses a mutual cooperation of air knife assembly forms the suspension passage of two-piece tank lower tank, makes the tank body reduce the probability of knocking with other devices when high-speed inlet tank, effectively reduces the waste rate of two-piece tank because of knocking.

[0023] (2) The utility model discloses the exhaust port setting of preferred scheme, strengthens the support intensity of the tank root of weight concentration, improves the stability of tank body in the process of inlet tank, reduces the tank root knocking and scrap situation.

[0024] (3) The utility model effectively solves the quality problem of color printing 1500cpm and more high-speed lower tank root knocking or indentation, compared with the traditional inlet tank mode, the lower tank root is basically without knocking or indentation at the same speed, and the color printing quality is obviously improved, and the production efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a gas flow suspension inlet tank device installation schematic drawing of the utility model embodiment 1.

[0026] Figure 2 It is a gas flow suspension inlet tank device gas distribution funnel structure schematic drawing of the utility model.

[0027] Figure 3 It is a gas flow suspension inlet tank device gas amount adjusting assembly structure schematic drawing of the utility model.

[0028] Figure 4 It is a gas flow suspension inlet tank device lower air knife assembly structure schematic drawing of the utility model embodiment 2.

[0029] Figure 5 It is a gas flow suspension inlet tank device upper air knife assembly structure schematic drawing of the utility model embodiment 2.

[0030] In the diagram: 1. Air knife assembly; 2. Air storage chamber; 3. Exhaust surface; 4. Suspended air duct; 5. Exhaust port; 10. Air intake assembly; 11. Air distribution funnel; 12. Air inlet; 13. Exhaust opening; 14. Air volume regulating device; 15. Adjusting plate; 16. Insert plate; 17. Bending part; 18. Fastener; 20. Upper air knife assembly; 21. Positioning component; 30. Lower air knife assembly. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Those skilled in the art will be able to implement the present invention based on these descriptions. Furthermore, the embodiments of the present invention described below are generally only a part of the embodiments of the present invention, and not all of the embodiments. Therefore, all other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0032] Example 1:

[0033] The airflow suspension inlet device in this embodiment, such as Figure 1 As shown, it includes two air knife assemblies 1, which are divided into an upper air knife assembly 20 and a lower air knife assembly 30 according to their positions. The lower air knife assembly 30 is located below the inlet path of the two tanks and provides the main air support for the two tanks. It has a hexagonal prism-shaped air storage chamber 2. On its two corresponding larger side surfaces, one side is equipped with an air inlet assembly 10, and the other side is curved inward to form an arc-shaped exhaust surface 3. Exhaust ports 5 are evenly distributed on the exhaust surface.

[0034] When high-speed gas passes sequentially through the intake assembly 10, the gas storage chamber 2, and the exhaust surface 3, due to the large area of ​​the exhaust surface 3, gas is easily discharged from a portion of the exhaust surface 3 before completely filling the gas storage chamber 2. This results in a severe imbalance of airflow across the entire exhaust surface 3, making it easier for the tank to collide with other parts of the tank in areas with weaker airflow. Therefore, the intake assembly 10 in this embodiment includes a... Figure 2 The air distribution funnel 11 shown has a small circular air inlet 12 at its lower end and a large exhaust outlet 13 at its upper end. The exhaust outlet 13 is welded to the air storage chamber to form a conical gas passage. During inflation, the gas is guided by the conical gas passage, which can quickly fill the entire air storage chamber 2, and then be evenly discharged from the exhaust surface 3.

[0035] Before the device is put into operation, it is necessary to adjust the appropriate air outlet speed. However, frequently changing the air volume of the blower is cumbersome. Therefore, in order to facilitate the adjustment of the air intake volume, this embodiment sets a baffle device at the air inlet as an air volume adjustment device 14. Figure 3As shown, the air volume adjusting device 14 includes an adjusting plate 15 for connecting with the air inlet 12, and a plug plate 16 with a bending part 17. The adjusting plate 15 is provided with a circular ring on one side for sleeving with the air inlet 12, and a rectangular recess on the other side for plugging the plug plate 16, and the rectangular recess is further provided with a fastener 18 for fixing the position of the plug plate 16, which is composed of a fastening screw and a hole plate on the adjusting plate 15. In use, the adjusting plate 15 is first sleeved with the air inlet 12, and then the other side of the adjusting plate 15 is fixed with other devices. At this time, the worker can hold the bending part 17 to plug the plug plate 16 into the recess, change the area of the air inlet 12 by adjusting the depth of the plug plate 16, and then change the air inlet speed. Finally, the plug plate 16 is fixed by the fastener 18, and the fastening screw is tightened to make the plug plate 16 abut against other devices installed on the adjusting plate 15, so as to realize the fixation of the plug plate 16 and complete the air volume adjustment.

[0036] The upper air knife assembly 20 is arranged above the two-piece can entering path, and mainly provides small air force to prevent the two-piece cans from deviating from the entering path due to excessive blowing force of the lower air knife assembly 30. The upper air knife assembly 20 also includes the air inlet assembly 10, the air storage chamber 2, and the air exhaust surface 3, which is outwardly curved to form an outward convex curved surface with a curvature matching that of the air exhaust surface 3 of the lower air knife assembly 30. On the side opposite to the air exhaust surface 3, the same air distribution funnel 11 and air volume adjusting device 14 as those of the lower air knife assembly 30 are arranged, so as to facilitate simultaneous air volume adjustment of the upper and lower air knife assemblies. In addition, in order to stably fix the upper air knife assembly 20, two positioning members 21 are further arranged on the air storage chamber 2, which are clamped with other devices and fastened by screws, so that the upper air knife assembly 20 is firmly arranged above the two-piece can entering path.

[0037] After the installation of the upper air knife assembly 20 and the lower air knife assembly 30 is completed, the arc-shaped suspension air duct 4 allowing the two-piece can bodies to pass through is formed between the two arc-shaped air exhaust surfaces 3. Through the arc-shaped design, the entering process is smoother. Through the air volume adjustment of the upper and lower air knife assemblies, in an ideal state, the can bodies can not contact the upper air knife assembly 20 and the lower air knife assembly 30 when falling, and when the can bodies reach the bottom end of the arc-shaped suspension air duct 4, the air knife can provide sufficient supporting force to prevent the collision with the lower air knife assembly 30, and finally stably slide out of the suspension air duct 4.

[0038] Example 2:

[0039] The air flow suspension can entering device of the present embodiment includes two air knife assemblies 1, which are divided into an upper air knife assembly 20 and a lower air knife assembly 30 according to their positions, and the installation positions are as shown in Figure 1As shown. The difference between this embodiment and Embodiment 1 lies in the special distribution of the exhaust vents 5 on the exhaust surface 3. Since the two cans entering the printing machine do not have lids, their center of gravity is closer to the base of the can. If air is blown evenly across the entire can body, the can head is more easily blown up, causing the two cans to tilt in the suspended air duct 4, making them more prone to collision. For example... Figure 4 As shown, in this embodiment, the exhaust port 5 is only provided on the side of the exhaust surface 3 near the root of the can. This design not only reduces the waste of airflow but also makes it easier to find a suitable airflow, ensuring that the two cans are always parallel to the exhaust surface 3 within the suspended air duct 4. Furthermore, since the two cans move faster at the end of the suspended air duct 4, therefore... Figure 4 As shown, the exhaust vents 5 at the end of the suspended air duct 4 are more densely packed than those in other parts. Figure 5 As shown, the distribution of the exhaust ports 5 of the upper air knife assembly 20 corresponds to that of the lower air knife assembly 30, thereby maintaining the stability of the two cans in the suspended air duct 4. Furthermore, in this embodiment, the exhaust surface 3 of the upper air knife assembly 20 extends beyond the exhaust surface 3 of the lower air knife assembly 20 by a certain distance at the beginning of the suspended air duct 4, and the exhaust ports 5 are more densely packed along this distance. This is to apply a certain resistance to the two cans immediately entering the suspended air duct 4, preventing them from directly colliding with the upper air knife assembly 20.

[0040] The embodiments of this specification have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical applications, or technological improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. An air suspension tank filling apparatus characterized by: The wind knife assembly (1) comprises a gas storage chamber (2) and an air exhaust surface (3) arranged on the gas storage chamber (2), and further comprises an air inlet assembly (10) connected with the gas storage chamber (2). The air exhaust surfaces (3) of the wind knife assemblies (1) in each group are oppositely arranged and spaced apart by a distance, so that the air exhaust surfaces (3) form a floating air duct (4) allowing the tank to pass through. At least one side of the air exhaust surface (3) is provided with an air exhaust port (5).

2. An air suspension tank filling device according to claim 1, characterised in that: The air exhaust port (5) is unevenly arranged on the air exhaust surface (3).

3. An air suspension tank filling apparatus according to claim 2, wherein: The air inlet assembly (10) comprises a gas distribution funnel (11), the gas distribution funnel (11) comprises an air outlet opening (13) connected with the gas storage chamber (2), and an air inlet port (12) with an area smaller than the air outlet opening (13).

4. An air suspension tank filling apparatus according to claim 1, wherein: The air inlet assembly (10) further comprises a gas amount adjusting device (14) arranged on the air inlet port (12).

5. An air suspension tank filling apparatus according to claim 4, wherein: The gas amount adjusting device (14) comprises an adjusting plate (15) connected with the air inlet port (12), and a plug-in plate (16) plugged on the adjusting plate (15) for changing the area of the air inlet port (12).

6. An air suspension tank filling apparatus according to claim 5, wherein: The edge of the plug-in plate (16) is provided with a bending part (17) for convenient holding.

7. An air suspension tank filling apparatus according to claim 6, wherein: The adjusting plate (15) is provided with a fastener (18) for fixing the position of the plug-in plate (16).

8. An air suspension tank filling apparatus according to claim 6, wherein: Each group of wind knife assemblies (1) is divided into an upper wind knife assembly (20) and a lower wind knife assembly (30), the air exhaust surface (3) of the upper wind knife assembly (20) is an outward convex arc surface, and the air exhaust surface (3) of the lower wind knife assembly (30) is an inward concave arc surface, so that the floating air duct (4) formed between the air exhaust surfaces (3) is arc-shaped.

9. An air suspension tank filling apparatus according to any one of claims 1 to 8, wherein: The upper wind knife assembly (20) is further provided with a positioning member (21) for fixing the upper wind knife assembly (20).

10. An air suspension tank filling apparatus according to claim 9, wherein: ​

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