Rapid cooling and shaping equipment based on injection molding in plastic garbage can production

Abstract

The invention relates to the technical field of plastic garbage can production, in particular to rapid cooling and shaping equipment based on injection molding in plastic garbage can production, which comprises a bearing rack, a back plate, an adjusting component and a heat exchange component, a liquid inlet pipe is arranged on the front side of the heat exchange component, a liquid pump is mounted at the lower end of the liquid inlet pipe, and a water tank is arranged on the lower side of the liquid pump; a water pumping pipe is arranged in the water tank, a liquid outlet pipe is arranged at the position, close to the liquid inlet pipe, of the front side of the heat exchange component, a cooling component is arranged at the lower end of the liquid outlet pipe, and a circulating pipe is arranged at the lower end of the cooling component. Injection molding liquid in the injection mold is cooled and shaped through the heat exchange component, the production efficiency of the plastic garbage can is improved, liquid circulating in the heat exchange coil pipe is refrigerated through the cooling component, the cooling and shaping efficiency is further improved, the position of the heat exchange component is adjusted through the adjusting component, and the cooling and shaping uniformity is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plastic trash can production, in particular to rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans. Background Art

[0002] Plastic trash can is a low-cost, easy-to-use garbage holding device. It is made of two new plastics, high-density polyethylene (HDPE) or polypropylene (PP). Injection molding is an important step in the production of plastic trash cans. Injection molding is also called injection molding. It is a molding method of injection and molding. In order to quickly shape the plastic trash can after injection molding, cooling and shaping equipment are required to assist in the operation to improve the production efficiency of the plastic trash can.

[0003] However, currently in the market, the production of plastic trash cans based on injection molding equipment relies on the mold to cool and shape itself, and the cooling and shaping efficiency is low, which is not conducive to the production efficiency of plastic trash cans. The uniformity of cooling and shaping is low, which is not conducive to the molding effect of plastic trash cans and affects the processing quality of plastic trash cans. Therefore, those skilled in the art provide a rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans to solve the problems raised in the above background technology. Summary of the invention

[0004] The purpose of the present invention is to provide a rapid cooling and shaping device based on injection molding in the production of plastic trash cans to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a rapid cooling and shaping device based on injection molding in the production of plastic trash cans, comprising a bearing frame, a back plate, an adjusting component and a heat exchange component, wherein the back plate is located at the upper side of the bearing frame, the adjusting component is located at the front side of the back plate, the heat exchange component is located at the inner side of the adjusting component, a liquid inlet pipe is arranged at the front side of the heat exchange component, a liquid pump is installed at the lower end of the liquid inlet pipe, a water tank is arranged at the lower side of the liquid pump, a water pump is arranged inside the water tank, and the heat exchange component A liquid outlet pipe is provided at a position adjacent to the liquid inlet pipe on the front side, a cooling component is provided at the lower end of the liquid outlet pipe, a circulation pipe is provided at the lower end of the cooling component, an injection mold is provided on the inner side of the heat exchange component, the heat exchange component includes a heat exchange box, a heat exchange coil is provided inside the heat exchange box, an air intake box is provided on one side of the heat exchange box, a first filter is provided on one side of the air intake box, an air intake fan is installed inside the air intake box, exhaust nets are provided at both sides of the heat exchange box, and a first mounting plate is provided on the outer side of the heat exchange box.

[0006] As a further solution of the present invention: the adjusting component includes a second mounting plate, a first through-type screw motor is mounted on the upper side of the second mounting plate, a first screw body is arranged inside the first through-type screw motor, an adjusting frame is arranged on the lower side of the first screw body, second through-type screw motors are mounted at both sides of the adjusting frame, and a second screw body is arranged inside the second through-type screw motor.

[0007] As a further solution of the present invention: the cooling component includes a refrigeration box, heat sinks are arranged at both ends of the upper side of the refrigeration box, an exhaust fan is installed on the outside of the heat sink, a third mounting plate is arranged at the upper end of the inner side of the heat sink, a cold air output strip is arranged on the lower side of the third mounting plate, an air outlet pipe is arranged on the inner side of the cold air output strip, an air pump is installed on the lower end of the air outlet pipe, an air inlet pipe is arranged on the upper side of the refrigeration box, semiconductor refrigerators are installed on both sides of the refrigeration box, a support frame is arranged on the lower side of the refrigeration box, and a second filter is arranged on the lower side of the refrigeration box.

[0008] As a further scheme of the present invention: the lower end of the water pumping pipe is located at the lower end of the water tank, the output end of the water pumping pipe is connected with the input end of the liquid pump, the output end of the liquid pump is connected with the input end of the liquid inlet pipe, the output end of the liquid inlet pipe is connected with the input end of the heat exchange coil, the output end of the heat exchange coil is connected with the input end of the liquid outlet pipe, the output end of the liquid outlet pipe is connected with the input end of the cooling component, the output end of the cooling component is connected with the input end of the circulation pipe, and the output end of the circulation pipe is connected with the upper end of the water tank.

[0009] As a further solution of the present invention: one end of the air inlet box is connected to the heat exchange box, and the heat exchange box slides at an outer position of the injection mold.

[0010] As a further solution of the present invention: the rear side of the second mounting plate is fixed to the front position of the back plate, the upper end of the first screw rod body slides at the internal position of the second mounting plate, the first screw rod body slides at the internal position of the second mounting plate through the first through-type screw rod motor, and the adjustment frame slides at the lower side position of the second mounting plate through the first screw rod body.

[0011] As a further solution of the present invention: the outer end of the second screw rod body slides at the outer position of the adjusting frame, the second screw rod body slides at the outer position of the adjusting frame through the second through-type screw rod motor, the inner end of the second screw rod body is fixed at the outer position of the first mounting plate, and the first mounting plate slides at the inner position of the adjusting frame through the second screw rod body.

[0012] As a further solution of the present invention: the output end of the liquid outlet pipe is connected to the input end of the heat sink, and the output end of the heat sink is connected to the input end of the circulation pipe.

[0013] As a further solution of the present invention: the upper end of the refrigeration box is connected to the input end of the air inlet pipe, the output end of the air inlet pipe is connected to the input end of the air pump, the output end of the air pump is connected to the input end of the air outlet pipe, and the output end of the air outlet pipe is connected to the input end of the cold air output strip.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The rapid cooling and shaping device based on injection molding in the production of plastic trash cans of the present invention cools and shapes the injection liquid inside the injection mold through the heat exchange component, thereby improving the production efficiency of the plastic trash cans, and refrigerates the liquid circulating in the heat exchange coil through the cooling component, thereby further improving the cooling and shaping efficiency and maintaining the cooling and shaping effect; The position of the heat exchange component is adjusted by the adjusting component, and the uniformity of cooling and shaping is improved, which is beneficial to the molding effect of the plastic trash can and improves the processing quality of the plastic trash can. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a rapid cooling and shaping device based on injection molding in the production of plastic trash cans; Figure 2 This is the assembly drawing of the rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans; Figure 3 A perspective view of a heat exchange component in a rapid cooling and shaping device based on injection molding in the production of a plastic trash can; Figure 4 It is a structural schematic diagram of the regulating component in the rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans; Figure 5 A perspective view of the cooling components in a rapid cooling molding device based on injection molding in the production of plastic trash cans.

[0016] In the figure: 1, bearing frame; 2, back plate; 3, adjusting component; 4, heat exchange component; 5, liquid inlet pipe; 6, liquid pump; 7, water pumping pipe; 8, water tank; 9, liquid outlet pipe; 10, cooling component; 11, circulation pipe; 12, injection mold; 13, heat exchange box; 14, heat exchange coil; 15, air inlet box; 16, first filter; 17, air intake fan; 18, exhaust net; 19, first mounting plate; 20, second mounting plate; 21, first through-type screw motor; 22, first screw body; 23, adjusting frame; 24, second through-type screw motor; 25, second screw body; 26, refrigeration box; 27, heat sink; 28, exhaust fan; 29, third mounting plate; 30, cold air output strip; 31, air outlet pipe; 32, air pump; 33, air inlet pipe; 34, semiconductor refrigerator; 35, support frame; 36, second filter. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figures 1 to 5In an embodiment of the present invention, a rapid cooling and shaping device based on injection molding in the production of a plastic trash can comprises a bearing platform 1, a back plate 2, an adjusting component 3 and a heat exchange component 4, wherein the back plate 2 is located at the upper side of the bearing platform 1, the adjusting component 3 is located at the front side of the back plate 2, the heat exchange component 4 is located at the inner side of the adjusting component 3, a liquid inlet pipe 5 is arranged at the front side of the heat exchange component 4, a liquid pump 6 is installed at the lower end of the liquid inlet pipe 5, a water tank 8 is arranged at the lower side of the liquid pump 6, a water pumping pipe 7 is arranged inside the water tank 8, a liquid outlet pipe 9 is arranged at the front side of the heat exchange component 4 near the liquid inlet pipe 5, a cooling component 10 is arranged at the lower end of the liquid outlet pipe 9, a circulation pipe 11 is arranged at the lower end of the cooling component 10, an injection mold is arranged inside the heat exchange component 4, and a liquid pump 6 is installed at the lower end of the liquid inlet pipe 5. The heat exchange component 4 includes a heat exchange box 13, a heat exchange coil 14 is arranged inside the heat exchange box 13, an air inlet box 15 is arranged on one side of the heat exchange box 13, a first filter screen 16 is arranged on one side of the air inlet box 15, an air intake fan 17 is installed inside the air inlet box 15, exhaust nets 18 are arranged at both sides of the heat exchange box 13, a first mounting plate 19 is arranged on the outside of the heat exchange box 13, the lower end of the water pump 7 is located at the lower end of the water tank 8, the output end of the water pump 7 is connected with the input end of the liquid pump 6, the output end of the liquid pump 6 is connected with the input end of the liquid inlet pipe 5, the output end of the liquid inlet pipe 5 is connected with the input end of the heat exchange coil 14, the output end of the heat exchange coil 14 is connected with the input end of the liquid outlet pipe 9, and the output end of the liquid outlet pipe 9 is connected with the input end of the heat exchange coil 14. The end is connected with the input end of the cooling member 10, the output end of the cooling member 10 is connected with the input end of the circulation pipe 11, the output end of the circulation pipe 11 is connected with the upper end of the water tank 8, one end of the air intake box 15 is connected with the heat exchange box 13, and the heat exchange box 13 slides at the outer position of the injection mold 12. First, the injection mold 12 is installed on the upper side of the supporting platform 1, and the heat exchange member 4 is located on the outer side of the injection mold 12. Then, the injection mold 12 is injection molded in the production of the plastic trash can. The adjustment member 3 operates to adjust the position of the heat exchange member 4 on the outer side of the injection mold 12. The adjustment member 3 operates to push the heat exchange box 13 to move through the first mounting plate 19, and the heat exchange box 13 is stuck to the outer side of the injection mold 12. The liquid pump 6 operates to pump The water pipe 7 draws the liquid from the water tank 8, and the liquid is introduced into the heat exchange coil 14 through the liquid inlet pipe 5. The water temperature of the heat exchange coil 14 is conducted to the heat exchange box 13, and the injection mold 12 is cooled by the heat exchange box 13. The liquid inside the heat exchange coil 14 is circulated to the inside of the cooling component 10 through the liquid outlet pipe 9. The cooling component 10 operates to cool the internal liquid, and the refrigerated liquid is circulated to the inside of the water tank 8 through the circulation pipe 11, completing the cooling and shaping operation of the injection mold 12 at the heat exchange box 13. The adjusting component 3 operates to adjust the position of the heat exchange component 4 outside the injection mold 12, and the cooling and shaping operation is performed again. Finally, the cooling and shaping of the injection molding liquid inside the injection mold 12 is completed, the injection mold 12 is opened, and the plastic trash can after production is taken out.

[0019] exist Figure 2 , 4 In: The adjusting member 3 includes a second mounting plate 20, a first through-type screw motor 21 is mounted on the upper side of the second mounting plate 20, a first screw body 22 is arranged inside the first through-type screw motor 21, an adjusting frame 23 is arranged on the lower side of the first screw body 22, second through-type screw motors 24 are mounted on both sides of the adjusting frame 23, a second screw body 25 is arranged inside the second through-type screw motor 24, the rear side of the second mounting plate 20 is fixed to the front side of the back plate 2, the upper end of the first screw body 22 slides at the inner position of the second mounting plate 20, the first screw body 22 slides at the inner position of the second mounting plate 20 through the first through-type screw motor 21, the adjusting frame 23 slides at the lower side of the second mounting plate 20 through the first screw body 22, and the outer end of the second screw body 25 slides At the outer position of the adjusting frame 23, the second screw rod body 25 slides at the outer position of the adjusting frame 23 through the second through-type screw rod motor 24, the inner end of the second screw rod body 25 is fixed at the outer position of the first mounting plate 19, the first mounting plate 19 slides at the inner position of the adjusting frame 23 through the second screw rod body 25, the injection mold 12 performs injection molding in the production of plastic trash cans, the first through-type screw rod motor 21 drives the first screw rod body 22 to slide inside the second mounting plate 20, and the position of the heat exchange component 4 located outside the injection mold 12 is adjusted by the adjusting frame 23. The second through-type screw rod motor 24 drives the second screw rod body 25 to slide on the outside of the adjusting frame 23, and the second screw rod body 25 pushes the heat exchange box 13 to move through the first mounting plate 19, and the heat exchange box 13 is stuck to the outside of the injection mold 12.

[0020] exist Figure 2 , 5The cooling member 10 includes a refrigeration box 26, and heat sinks 27 are arranged at both ends of the upper side of the refrigeration box 26. An exhaust fan 28 is installed on the outer side of the heat sink 27. A third mounting plate 29 is arranged at the inner upper end of the heat sink 27. A cold air output strip 30 is arranged on the lower side of the third mounting plate 29. An air outlet pipe 31 is arranged on the inner side of the cold air output strip 30. An air pump 32 is installed at the lower end of the air outlet pipe 31. An air inlet pipe 33 is arranged on the upper side of the refrigeration box 26. A semiconductor refrigerator 34 is installed, a support frame 35 is provided on the lower side of the refrigeration box 26, a second filter screen 36 is provided on the lower side of the refrigeration box 26, the output end of the liquid outlet pipe 9 is connected with the input end of the heat sink 27, the output end of the heat sink 27 is connected with the input end of the circulation pipe 11, the upper end of the refrigeration box 26 is connected with the input end of the air inlet pipe 33, the output end of the air inlet pipe 33 is connected with the input end of the air pump 32, the output end of the air pump 32 is connected with the input end of the air outlet pipe 31, and the air outlet pipe 3 The output end of the cooling device 1 is connected to the input end of the cooling output strip 30, the liquid pump 6 operates to extract the liquid in the water tank 8 through the water pumping pipe 7, the liquid is introduced into the heat exchange coil 14 through the liquid inlet pipe 5, the water temperature of the heat exchange coil 14 is transmitted to the heat exchange box 13, the injection mold 12 is cooled by the heat exchange box 13, the liquid in the heat exchange coil 14 is circulated to the inside of the heat sink 27 through the liquid outlet pipe 9, the semiconductor refrigerator 34 operates to cool the inside of the cooling box 26, and the air pump 32 operates to cool the external gas through the second After being filtered by the filter 36, the cold air in the refrigeration box 26 enters the interior of the cold air output bar 30 through the air inlet pipe 33, the air pump 32 and the air outlet pipe 31. The cold air output bar 30 sprays cold air to cool the radiator 27. The exhaust fan 28 runs to accelerate the air circulation outside the radiator 27, completing the cooling of the liquid inside the radiator 27. The cooled liquid circulates to the inside of the water tank 8 through the circulation pipe 11, completing the cooling and shaping operation of the injection mold 12 at the heat exchange box 13.

[0021] The working principle of the present invention is: first, the injection mold 12 is installed on the upper side of the supporting platform 1, and the heat exchange component 4 is located on the outside of the injection mold 12. Then, the injection mold 12 performs injection molding in the production of plastic trash cans. The first through-type screw motor 21 drives the first screw body 22 to slide inside the second mounting plate 20, and the position of the heat exchange component 4 located outside the injection mold 12 is adjusted by the adjusting frame 23. The second through-type screw motor 24 drives the second screw body 25 to slide on the outside of the adjusting frame 23. The second screw body 25 pushes the heat exchange box 13 to move through the first mounting plate 19. The heat exchange box 13 is stuck to the outside of the injection mold 12. The liquid pump 6 runs through the water pump 7 to extract the liquid inside the water tank 8. The liquid is introduced into the inside of the heat exchange coil 14 through the liquid inlet pipe 5. The water temperature of the heat exchange coil 14 is conducted to the heat exchange box 13, and the injection mold 12 is cooled by the heat exchange box 13. The liquid circulates to the inside of the heat sink 27 through the liquid outlet pipe 9, the semiconductor refrigerator 34 operates to cool the inside of the refrigeration box 26, the air pump 32 operates to filter the external air through the second filter 36 and then enter the inside of the refrigeration box 26, the cold air inside the refrigeration box 26 enters the inside of the cold air output strip 30 through the air inlet pipe 33, the air pump 32 and the air outlet pipe 31, the cold air output strip 30 sprays cold air to cool the heat sink 27, the exhaust fan 28 operates to accelerate the air circulation outside the heat sink 27, and completes the refrigeration of the liquid inside the heat sink 27, the refrigerated liquid circulates to the inside of the water tank 8 through the circulation pipe 11, and the cooling and shaping operation of the injection mold 12 at the heat exchange box 13 is completed, the adjusting component 3 operates to adjust the position of the heat exchange component 4 outside the injection mold 12, and the cooling and shaping operation is performed again. Finally, the cooling and shaping of the injection molding liquid inside the injection mold 12 is completed, the injection mold 12 is opened, and the plastic trash can after production is taken out.

[0022] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0023] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rapid cooling and shaping device based on injection molding in the production of plastic trash cans, comprising a supporting frame (1), a back plate (2), an adjusting component (3) and a heat exchange component (4), wherein the back plate (2) is located at the upper side of the supporting frame (1), the adjusting component (3) is located at the front side of the back plate (2), and the heat exchange component (4) is located at the inner side of the adjusting component (3), characterized in that: A liquid inlet pipe (5) is arranged on the front side of the heat exchange component (4), a liquid pump (6) is installed at the lower end of the liquid inlet pipe (5), a water tank (8) is arranged on the lower side of the liquid pump (6), a water pumping pipe (7) is arranged inside the water tank (8), a liquid outlet pipe (9) is arranged on the front side of the heat exchange component (4) near the liquid inlet pipe (5), a cooling component (10) is arranged at the lower end of the liquid outlet pipe (9), a circulation pipe (11) is arranged at the lower end of the cooling component (10), and a heat exchange component (4) is arranged on the inner side of the heat exchange component (4). An injection mold (12) is provided, wherein the heat exchange component (4) comprises a heat exchange box (13), a heat exchange coil (14) is arranged inside the heat exchange box (13), an air intake box (15) is arranged on one side of the heat exchange box (13), a first filter screen (16) is arranged on one side of the air intake box (15), an air intake fan (17) is installed inside the air intake box (15), exhaust screens (18) are arranged at positions on both sides of the heat exchange box (13), and a first mounting plate (19) is arranged on the outside of the heat exchange box (13).

2. The rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans according to claim 1 is characterized in that: The adjusting member (3) comprises a second mounting plate (20), a first through-type screw motor (21) being mounted on the upper side of the second mounting plate (20), a first screw body (22) being arranged inside the first through-type screw motor (21), an adjusting frame (23) being arranged on the lower side of the first screw body (22), second through-type screw motors (24) being mounted at both sides of the adjusting frame (23), and a second screw body (25) being arranged inside the second through-type screw motor (24).

3. The rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans according to claim 1 is characterized in that: The cooling component (10) comprises a refrigeration box (26), heat sinks (27) are arranged at both ends of the upper side of the refrigeration box (26), an exhaust fan (28) is installed on the outside of the heat sink (27), a third mounting plate (29) is arranged at the upper end of the inner side of the heat sink (27), a cold air output strip (30) is arranged on the lower side of the third mounting plate (29), an air outlet pipe (31) is arranged on the inner side of the cold air output strip (30), an air pump (32) is installed on the lower end of the air outlet pipe (31), an air inlet pipe (33) is arranged on the upper side of the refrigeration box (26), semiconductor refrigerators (34) are installed on both sides of the refrigeration box (26), a support frame (35) is arranged on the lower side of the refrigeration box (26), and a second filter screen (36) is arranged on the lower side of the refrigeration box (26).

4. The rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans according to claim 1 is characterized in that: The lower end of the water pumping pipe (7) is located at the lower end of the water tank (8); the output end of the water pumping pipe (7) is connected to the input end of the liquid pump (6); the output end of the liquid pump (6) is connected to the input end of the liquid inlet pipe (5); the output end of the liquid inlet pipe (5) is connected to the input end of the heat exchange coil (14); the output end of the heat exchange coil (14) is connected to the input end of the liquid outlet pipe (9); the output end of the liquid outlet pipe (9) is connected to the input end of the cooling component (10); the output end of the cooling component (10) is connected to the input end of the circulation pipe (11); and the output end of the circulation pipe (11) is connected to the upper end of the water tank (8).

5. The rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans according to claim 1 is characterized in that: One end of the air inlet box (15) is connected to the heat exchange box (13), and the heat exchange box (13) slides at an outer position of the injection mold (12).

6. The rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans according to claim 2, characterized in that: The rear side of the second mounting plate (20) is fixed to the front side of the back plate (2), the upper end of the first screw rod body (22) slides at an inner position of the second mounting plate (20), the first screw rod body (22) slides at an inner position of the second mounting plate (20) via a first through-type screw rod motor (21), and the adjustment frame (23) slides at a lower side of the second mounting plate (20) via the first screw rod body (22).

7. The rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans according to claim 2 is characterized in that: The outer end of the second screw rod body (25) slides at an outer position of the adjustment frame (23), the second screw rod body (25) slides at an outer position of the adjustment frame (23) through a second through-type screw rod motor (24), the inner end of the second screw rod body (25) is fixed at an outer position of the first mounting plate (19), and the first mounting plate (19) slides at an inner position of the adjustment frame (23) through the second screw rod body (25).

8. The rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans according to claim 3 is characterized in that: The output end of the liquid outlet pipe (9) is connected to the input end of the heat sink (27), and the output end of the heat sink (27) is connected to the input end of the circulation pipe (11).

9. The rapid cooling and shaping equipment based on injection molding in the production of plastic trash cans according to claim 3, characterized in that: The upper end of the refrigeration box (26) is connected to the input end of the air inlet pipe (33), the output end of the air inlet pipe (33) is connected to the input end of the air pump (32), the output end of the air pump (32) is connected to the input end of the air outlet pipe (31), and the output end of the air outlet pipe (31) is connected to the input end of the cold air output strip (30).

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