Hot air exhaust system of cap welding machine

Abstract

The utility model relates to the field of cover welding equipment, and discloses a hot air exhaust system of a cover welding machine, the cover welding machine is located in a sealing box body, an air supply system which vertically blows air downwards is arranged at the top of the sealing box body, an air outlet is formed in the bottom of the sealing box body, and the hot air exhaust system comprises an air exhaust mechanism used for exhausting hot air in the sealing box body. The exhaust mechanism comprises a centrifugal fan and an exhaust collecting pipe, the centrifugal fan is arranged outside the sealed box body, the exhaust collecting pipe is arranged inside the sealed box body, the exhaust collecting pipe is located at the bottom of the sealed box body and located above the air outlet, a plurality of hot air collecting holes are formed in the exhaust collecting pipe, and the centrifugal fan is communicated with the exhaust collecting pipe. The heating area and the non-heating area of the cover welding machine are separated, and the exhaust system is arranged in the heating area of the cover welding machine to pump and exhaust hot air generated when the cover welding machine works, so that heat is prevented from being directly dissipated into a room to increase the load of an air conditioning system and influence the working environment of workers and equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of cap welding equipment, in particular to a hot air exhaust system for a cap welding machine. Background Art

[0002] In the production of large infusion plastic bottles, the nickel-chromium alloy heating plate on the cap welding machine preheats the plastic bottle and the plastic combination cap by thermal radiation, heating the bottle mouth and the end surface of the plastic combination cap to a softened and molten state, thereby achieving the purpose of welding.

[0003] However, the nickel-chrome heating plate needs to reach a relatively high temperature to heat the bottle mouth and the end cap surface to a softened and molten state. The heat released during the heating period of the nickel-chrome heating plate will cause the surrounding air temperature to rise sharply.

[0004] In actual production, as the cap welding machine's operating time accumulates, the indoor temperature continues to rise, causing workers and production equipment to work in a harsh, ultra-high temperature environment for a long time. At the same time, the excessively high ambient air temperature increases the load on the indoor air conditioning system, significantly increasing air conditioning energy consumption. Therefore, it is necessary to develop an exhaust system that can remove the hot air from the cap welding machine equipment to improve the workers' working environment. Utility Model Content

[0005] In view of the problems existing in the prior art: the heat emitted by the welding cap machine during long-term operation causes the indoor temperature to continue to rise, seriously affecting the working environment of workers and equipment. The purpose of this utility model is to provide a hot air exhaust system for the welding cap machine. The heating area of ​​the welding cap machine is isolated from the non-heating area, and an exhaust system is set in the heating area of ​​the welding cap machine to extract and discharge the hot air generated by the welding cap machine when it is working, thereby avoiding direct heat dissipation into the room, increasing the load of the air-conditioning system and affecting the working environment of workers and equipment.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is:

[0007] A hot air exhaust system for a welding cover machine, the welding cover machine is located inside a sealed box, an air supply system for blowing air vertically downward is provided on the top of the sealed box, an air outlet is provided at the bottom of the sealed box, the hot air exhaust system includes an exhaust mechanism for exhausting hot air from the inside of the sealed box, the exhaust mechanism includes a centrifugal fan and an exhaust collection pipe, the centrifugal fan is provided outside the sealed box and the exhaust collection pipe is provided inside the sealed box, the exhaust collection pipe is located at the bottom of the sealed box and above the air outlet, a number of hot air collection holes are provided on the exhaust collection pipe, and the centrifugal fan is connected to the exhaust collection pipe.

[0008] The utility model is further configured as follows: the hot air collecting hole is located at the bottom of the exhaust collecting pipe.

[0009] The utility model is further configured as follows: the hot air collecting holes are evenly distributed on the exhaust collecting pipe.

[0010] The utility model is further configured to include an isolation baffle, which divides the sealed box into a heating area and a non-heating area. The welding capping machine generates heat only in the heating area, and the exhaust collection pipe is located in the heating area.

[0011] The utility model is further configured as follows: the top of the isolation baffle is located below the heating plate of the cap welding machine, and the bottom of the isolation baffle is located above the air outlet.

[0012] The utility model is further configured as follows: the exhaust collection pipe is arranged around the heating area.

[0013] The utility model is further configured as follows: the exhaust mechanism also includes a ventilation duct, and the centrifugal fan is connected to the exhaust collection pipe through the ventilation duct.

[0014] The utility model is further configured to include: a damper, which is arranged in the heating area, connecting the heating area and the non-heating area, and automatically opens or closes according to the air pressure difference between the heating area and the non-heating area.

[0015] The utility model is further configured as follows: a wind direction sensor is arranged around the damper, the wind direction sensor and the centrifugal fan are both electrically connected to a controller, and the controller controls the power of the centrifugal fan according to a signal from the wind direction sensor.

[0016] The utility model is further configured as follows: the wind direction sensor is arranged on the isolation baffle.

[0017] In summary, the beneficial effects achieved by the present invention are as follows:

[0018] (1) When the cap welding machine is working, the air supply system above the cap welding machine blows air vertically downward, and a sealed box is set around the cap welding machine. The heat generated by the cap welding machine is blown downward to the bottom of the sealed box. The exhaust collection pipe connected to the centrifugal fan is set at the bottom of the sealed box and higher than the air outlet of the sealed box. There is a negative pressure in the exhaust collection pipe, which can attract the hot air into the exhaust collection pipe before it is discharged from the sealed box and be discharged from the room, thereby preventing the heat generated by the cap welding machine from causing the indoor temperature to continue to rise;

[0019] (2) An isolation baffle is used in the sealed box to separate the heating area of ​​the welding capping machine from the non-heating area of ​​the welding capping machine, thereby reducing the space affected by the heating of the welding capping machine and improving the collection efficiency of the exhaust collection pipe for hot air;

[0020] (3) The exhaust collection pipe is arranged around the heating area, so that it can absorb the hot air in the entire heating area; the numerous hot air collection holes on the exhaust collection pipe have small apertures, high density, and are evenly distributed, which can ensure uniform air suction volume at any position in the heating area, which is conducive to improving the hot air capture effect;

[0021] (4) The hot air collection hole is located at the bottom of the exhaust collection pipe, which effectively prevents foreign particles from entering the exhaust collection pipe and also facilitates cleaning of the exhaust collection pipe;

[0022] (5) Since the exhaust collection pipe in the heating area continuously draws air outward, the air pressure in the heating area is lower than that in the non-heating area. The damper can balance the pressure difference between the heating area and the non-heating area to a certain extent, ensure the production process conditions, and prevent the wind speed at the air outlet from being too fast;

[0023] (6) The wind direction sensor at the damper and the centrifugal fan in the exhaust mechanism are electrically connected to the controller, so that the controller can control the power of the centrifugal fan according to the signal of the wind direction sensor, and then control the size of the negative pressure in the exhaust collection pipe to avoid exacerbating the pressure difference between the heating area and the non-heating area. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the specification. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 This is a top view of the hot air exhaust system of the cap welding machine in the present invention;

[0026] Figure 2 This is a front view of the hot air exhaust system of the cap welding machine in the utility model;

[0027] Figure 3 It is a bottom view of the exhaust collection pipe in the utility model.

[0028] In the figure: 1. Cap welding machine; 11. Heating plate; 2. Sealing box; 21. Air outlet; 3. Air supply system; 4. Exhaust mechanism; 41. Centrifugal fan; 42. Ventilation duct; 43. Exhaust collection pipe; 431. Hot air collection hole; 5. Isolation baffle; 6. Wind direction sensor; 7. Air damper; 8. Heating area; 9. Non-heating area. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "up", "down", "inside", "outside", "bottom", etc. used in this specification to indicate directions or positional relationships are based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present application.

[0030] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work shall fall within the scope of protection of the present invention.

[0031] As attached Figure 1-3 As shown, a hot air exhaust system for a cap welding machine is used to exhaust the heat generated by the cap welding machine 1 to the outside. The cap welding machine 1 is a mature device in the prior art. The cap welding machine 1 is equipped with arc-shaped heating plates 11. When the cap welding machine 1 is in operation, the heating plates 11 continuously generate a large amount of heat.

[0032] In the prior art, the outer housing of the capping machine 1 is provided with a rectangular sealed box 2. The top and surrounding sidewalls of the sealed box 2 are sealed, with only an air outlet 21 approximately 10 centimeters high located at the bottom of the sidewalls. To meet production process requirements, an air supply system 3 is also installed on the top of the sealed box 2. This system uses a fan to evenly blow filtered air vertically downward toward the capping machine 1, thereby controlling particulate matter within the sealed box 2. The air from the air supply system 3 passes through the capping machine 1 and is then discharged from the sealed box 2 through the air outlet 21, thus creating air convection.

[0033] The hot air exhaust system includes an exhaust mechanism 4, an isolation baffle 5, a wind direction sensor 6 and a damper 7.

[0034] An isolation baffle 5 is vertically disposed between the outside of the capping machine 1 and the inside of the sealed housing 2. Two isolation baffles 5 are disposed within the sealed housing 2, thereby dividing the interior of the sealed housing 2 into a heating area 8 and a non-heating area 9. The capping machine 1 is provided with a heating plate 11 within the heating area 8, thereby generating heat during operation. The capping machine 1 does not have a heating plate 11 in the non-heating area 9, and therefore does not generate heat.

[0035] Since the air supply system 3 blows air vertically downward toward the cap welding machine 1, the top of the isolation baffle 5 can be set below the heating plate 11 of the cap welding machine 1 without contacting the top of the sealing box 2. The bottom of the isolation baffle 5 is set above the air outlet 21.

[0036] The exhaust mechanism 4 is used to exhaust hot air inside the sealed box 2 . The exhaust mechanism 4 includes a centrifugal fan 41 , a ventilation duct 42 and an exhaust collection pipe 43 .

[0037] A centrifugal fan 41 is located outside the sealed housing 2 and is capable of discharging the extracted hot air to the outside. An exhaust collection pipe 43 is located inside the sealed housing 2, and the ends of a ventilation duct 42 are connected to the centrifugal fan 41 and the exhaust collection pipe 43, respectively. In this embodiment, two ventilation ducts 42 are provided on the exhaust collection pipe 43, and a centrifugal fan 41 is located at the end of each ventilation duct 42.

[0038] The exhaust collecting pipe 43 is located in the heating area 8 . The exhaust collecting pipe 43 is U-shaped as a whole, so that it can be arranged around the heating area 8 .

[0039] The end of the exhaust collection pipe 43 is closed, and a number of hot air collection holes 431 with small apertures, high density and uniform distribution are opened at its bottom. When the centrifugal fan 41 is working, negative pressure is transmitted to the exhaust collection pipe 43 through the ventilation duct 42. At this time, the air near the exhaust collection pipe 43 can enter the exhaust collection pipe 43 through the hot air collection holes 431.

[0040] The exhaust collection pipe 43 is vertically positioned at the bottom of the side wall of the sealed box 2, thereby better absorbing the hot air blown downward by the air supply system 3. Furthermore, since the hot air collection hole 431 is located at the bottom of the exhaust collection pipe 43, the exhaust collection pipe 43 is located above the air outlet 21, thereby ensuring that the hot air is completely drawn away by the exhaust collection pipe 43 before being discharged from the air outlet 21.

[0041] The damper 7 is a passage connecting the heated area 8 and the non-heated area 9. The damper 7 is arranged in the heated area 8 and can automatically open or close in response to the pressure difference between the heated area 8 and the non-heated area 9. Specifically, because the heated area 8 continuously draws air out, when the pressure in the heated area 8 is lower than that in the non-heated area 9 and reaches a certain threshold, the damper 7 opens, and air from the non-heated area 9 is automatically replenished into the heated area 8.

[0042] A wind direction sensor 6 is provided on the isolation baffle 5 around the damper 7. The wind direction sensor 6 is used to measure the wind direction information at the damper 7 and transmit the electrical signal to the controller. The controller can be an industrial controller commonly used in the prior art. The wind direction sensor 6 and the centrifugal fan 41 are both electrically connected to the controller, so that the controller can control the power of the centrifugal fan 41 according to the signal from the wind direction sensor 6. Specifically, when the damper 7 is opened, the wind direction sensor 6 detects the wind direction circulation information. At this time, the difference between the air pressure in the heating area 8 and the air pressure in the non-heating area 9 has reached a certain threshold. The controller reduces the power of the centrifugal fan 41 by reducing the frequency of the centrifugal fan 41, thereby eliminating the air pressure difference between the heating area 8 and the non-heating area 9.

[0043] The implementation principle of the above embodiment is:

[0044] When the capping machine 1 is operating, the air supply system 3 above the capping machine 1 blows air vertically downward, and the heat generated by the capping machine 1 is blown downward to the exhaust collection pipe 43 at the bottom of the sealed box 2. Because the hot air is relatively concentrated in the heating area 8 and the hot air collection holes 431 on the exhaust collection pipe 43 are evenly and densely arranged, the exhaust collection pipe 43 has a highly efficient capture effect on the hot air, so that the hot air at the bottom of the sealed box 2 can completely enter the exhaust collection pipe 43 and be pumped outdoors, preventing the heat generated by the capping machine 1 from causing the indoor temperature to continue to rise.

[0045] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they are aware of the basic inventive concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention. Clearly, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, to the extent such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to encompass such changes and modifications.

Claims

1. A hot air exhaust system for a cap welding machine, wherein the cap welding machine (1) is located inside a sealed box (2), a vertically downward blowing air supply system (3) is provided on the top of the sealed box (2), and an air outlet (21) is provided at the bottom of the sealed box (2), characterized in that: The hot air exhaust system comprises an exhaust mechanism (4) for exhausting hot air from the sealed box (2), the exhaust mechanism (4) comprising a centrifugal fan (41) and an exhaust collection pipe (43), the centrifugal fan (41) being arranged outside the sealed box (2) and the exhaust collection pipe (43) being arranged inside the sealed box (2), the exhaust collection pipe (43) being located at the bottom of the sealed box (2) and above the air outlet (21), a plurality of hot air collection holes (431) being provided on the exhaust collection pipe (43), and the centrifugal fan (41) being in communication with the exhaust collection pipe (43).

2. The hot air exhaust system for the cap welding machine according to claim 1, characterized in that: The hot air collection hole (431) is located at the bottom of the exhaust collection pipe (43).

3. The hot air exhaust system for the cap welding machine according to claim 1 or 2, characterized in that: The hot air collection holes (431) are evenly distributed on the exhaust collection pipe (43).

4. The hot air exhaust system for the cap welding machine according to claim 1, characterized in that: It also includes an isolation baffle (5), which divides the sealed box (2) into a heating area (8) and a non-heating area (9). The welding capping machine (1) generates heat only in the heating area (8). The exhaust collection pipe (43) is located in the heating area (8).

5. The hot air exhaust system for the cap welding machine according to claim 4, characterized in that: The top of the isolation baffle (5) is located below the heating plate (11) of the cap welding machine (1), and the bottom of the isolation baffle (5) is located above the air outlet (21).

6. The hot air exhaust system for the cap welding machine according to claim 4, characterized in that: The exhaust collection pipe (43) is arranged around the heating area (8).

7. The hot air exhaust system for the cap welding machine according to claim 1, characterized in that: The exhaust mechanism (4) further comprises a ventilation duct (42), and the centrifugal fan (41) is connected to the exhaust collection pipe (43) via the ventilation duct (42).

8. The hot air exhaust system for the cap welding machine according to claim 4, characterized in that: The device further comprises an air door (7), wherein the air door (7) is arranged in the heating area (8), the air door (7) connects the heating area (8) and the non-heating area (9), and the air door (7) automatically opens or closes according to the air pressure difference between the heating area (8) and the non-heating area (9).

9. The hot air exhaust system for the cap welding machine according to claim 8, characterized in that: A wind direction sensor (6) is provided around the damper (7), and the wind direction sensor (6) and the centrifugal fan (41) are both electrically connected to a controller, and the controller controls the power of the centrifugal fan (41) according to a signal from the wind direction sensor (6).

10. The hot air exhaust system for the cap welding machine according to claim 9, characterized in that: The wind direction sensor (6) is arranged on the isolation baffle (5).

Images