Gas flapping mechanism for energy-saving glass bottle making

Abstract

The invention is applied to the technical field of glass bottle making, and particularly discloses an energy-saving glass bottle making gas trapping mechanism which comprises a lower mounting seat, a supporting column is fixedly mounted on the upper surface of the lower mounting seat, an upper mounting seat is fixedly mounted on the outer surface of the supporting column, and a circular mounting hole is formed in the surface of the upper mounting seat in a penetrating mode. According to the energy-saving air flapping mechanism for glass bottle making, the two air flapping cylinders are arranged, and preheating structures are arranged on the rotating paths of the two air flapping cylinders correspondingly, so that the preheating process of the air flapping cylinders can be completed in the process of switching stations to wait for feeding, and when the air flapping cylinders rotate to the positions of the side plates to wait for glass feeding, the preheating structures are arranged on the rotating paths of the two air flapping cylinders correspondingly; the heating sheets on the surfaces of the side plates can preheat air flow on the surface of the air inflation cylinder and in the air inflation cylinder, extra production time does not need to be occupied, the preheated air inflation cylinder can avoid thermal shock generated by contact of low-temperature air flow and a high-temperature glass blank, and hidden dangers of cracking and deformation of glass products are reduced.

Description

Technical Field

[0001] This invention relates to the field of glass bottle making technology, specifically to an energy-saving gas-expelling mechanism for glass bottle making. Background Technology

[0002] In the glass bottle manufacturing process, the air-flushing mechanism is one of the key pieces of equipment. The air-flushing mechanism introduces compressed air into the high-temperature glass blank, causing the glass blank to be formed into the preset bottle shape in the mold. Therefore, the stability and rationality of the air-flushing effect directly affect the forming quality and production efficiency of glass products.

[0003] Because the temperature is extremely high when the glass blank is formed, while the air-filled cylinder and the compressed air introduced into the traditional air-filling mechanism are at room temperature, the contact between the low-temperature airflow and the high-temperature glass blank will generate a strong thermal shock. The thermal shock can easily cause stress concentration inside the glass blank, which in turn can lead to quality problems such as bottle cracking and deformation, and reduce the product qualification rate. Summary of the Invention

[0004] The purpose of this invention is to provide an energy-saving gas-filling mechanism for glass bottle making, so as to solve the problem mentioned in the background art that the compressed air in the gas-filling mechanism is usually at room temperature, and thermal shock can easily lead to a reduction in the quality of the glass preform.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an energy-saving gas-extinguishing mechanism for glass bottle making, comprising a lower mounting base, a support column fixedly mounted on the upper surface of the lower mounting base, an upper mounting base fixedly mounted on the outer surface of the support column, a circular mounting hole penetrating the surface of the upper mounting base, and a support switching structure provided between the lower mounting base and the upper mounting base, wherein the position of the gas-extinguishing cylinder is switched by rotating the support plate of the support switching structure;

[0006] Preferably, the support switching structure includes a support plate with a circular hole through its surface. The circular hole on the surface of the support plate is fitted onto the outer surface of the support column, and the support plate and the outer surface of the support column are rotatably connected. The support column is a hollow structure with an open upper surface. A No. 1 motor is installed above the support column, and the output end of the No. 1 motor is inserted into the interior of the support column. The No. 1 motor is fixedly installed on the upper surface of the upper mounting base by bolts.

[0007] By adopting the above technical solution, the position of the air vent can be switched through the support and switching structure.

[0008] Preferably, a drive gear is fixedly installed at the output end of the No. 1 motor. The side surface of the drive gear penetrates the surface of the support column. An arc-shaped notch is provided through the surface of the support column. The drive gear meshes with a driven gear. The driven gear has an internal gear structure and is fixedly installed on the upper surface of the support plate.

[0009] Using the above technical solution, the support plate can be rotated by the drive gear and the driven gear.

[0010] Preferably, the surface of the lower mounting base is provided with a guide groove, which is a through arc structure. One end of the guide groove penetrates the side surface of the lower mounting base. Two guide grooves are symmetrically arranged on the surface of the lower mounting base. Each guide groove is provided with a set of driving structures. The driving structures realize the vertical movement of the air pump through ball screws.

[0011] Using the above technical solution, the vertical movement of the air pump can be achieved through the ball screw.

[0012] Preferably, the drive structure includes a ball screw, which is inserted through the guide groove. The upper end of the ball screw passes through the surface of the support plate and is fixedly connected to the output end of the second motor. The second motor is fixedly installed on the upper surface of the support plate.

[0013] Using the above technical solution, the vertical movement of the air pump can be achieved by the No. 2 motor.

[0014] Preferably, the slide on the outer surface of the ball screw is fixedly connected to the outer surface of the air cylinder, and a valve is provided through the upper surface of the air cylinder. One end of the valve is inserted into the air cylinder, and the other end of the valve is connected to the air inlet pipe. The air inlet pipe is a flexible hose structure for external compressed air connection.

[0015] Using the above technical solution, the gas extinguishing process can be achieved through the gas extinguishing cylinder.

[0016] Preferably, the air-filled cylinder has a three-section reduced structure, and the inner wall of the air-filled cylinder is provided with a two-stage flow guiding structure. The two-stage flow guiding structure achieves the effect of guiding and diverting air through the upper flow guiding plate and the lower flow guiding plate.

[0017] By adopting the above technical solution, the air can be guided and diverted through the two-stage flow guiding structure inside the air vent.

[0018] Preferably, the dual-stage flow guiding structure includes an upper flow guiding plate, which is a spiral plate structure. The upper flow guiding plate is fixedly installed on the inner wall of the air-filling cylinder near the valve end. An air outlet is provided at the bottom of the air-filling cylinder. A lower flow guiding plate is fixedly installed on the inner wall of the air-filling cylinder near the air outlet end. The lower flow guiding plate is an annular structure with a conical through hole at its center. Circular diversion holes are equidistantly arranged on the surface of the lower flow guiding plate. A separator membrane is fixedly installed on the inner wall of the circular diversion holes on the surface of the lower flow guiding plate. A cross-shaped opening is provided through the surface of the separator membrane.

[0019] By adopting the above technical solution, the upper and lower guide plates can achieve the effect of guiding and diverting gas.

[0020] Preferably, the surface of the lower mounting base is provided with a preheating structure, which preheats the surface of the air cylinder through a side plate and heating elements.

[0021] By adopting the above technical solution, the surface of the air venting cylinder can be preheated through the preheating structure.

[0022] Preferably, the preheating structure includes a side plate, which is an arc-shaped plate structure. The side plate is fixedly installed on the outer surface of the lower mounting base. The side plate is perpendicular to the guide groove. Two side plates are symmetrically arranged in the center. The two side plates are respectively located on the rotation path of the air pump. A heating element is fixedly installed on the side surface of the side plate. The heating element is connected to an external power source.

[0023] Using the above technical solution, the surface of the air venting cylinder can be preheated by heating elements.

[0024] Compared with the prior art, the beneficial effects of the present invention are: the energy-saving air-purging mechanism for glass bottle making:

[0025] 1. This invention provides two air-filling cylinders, each with a preheating structure along its rotation path. This allows the air-filling cylinders to complete the preheating process while waiting for material loading at different workstations. When the air-filling cylinder rotates to the side plate position to wait for glass loading, the heating element on the side plate surface can preheat the surface of the air-filling cylinder and the internal airflow without requiring additional production time. Furthermore, the preheated air-filling cylinder avoids thermal shock caused by the contact between the low-temperature airflow and the high-temperature glass blank, reducing the risk of cracking and deformation of the glass products. At the same time, the preheated airflow reduces the temperature difference loss with the glass blank, reducing the energy consumption required for compressed air temperature compensation and increasing the energy-saving effect of the device.

[0026] 2. The air-filling cylinder in this invention is designed with a three-section reduction structure. The airflow velocity gradually increases inside the air-filling cylinder. The air-filling cylinder is equipped with an upper guide plate and a lower guide plate. The spiral upper guide plate can guide the compressed air to form a stable vortex. With the cooperation of the air-filling cylinder reduction structure, the airflow rate is gradually increased to ensure the stability of airflow delivery. The annular lower guide plate, through the combination of a central conical through hole and annular equidistant diversion holes, can divide the airflow into a main airflow and an auxiliary diversion airflow. The main airflow acts on the central area of ​​the glass blank, and the auxiliary diversion airflow is evenly diffused to the edge of the blank through the diversion hole with a cross-shaped opening separator, realizing all-round air filling and avoiding airflow turbulence and pressure unevenness during the air filling process. Attached Figure Description

[0027] Figure 1 This is a front view structural diagram of the present invention;

[0028] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0029] Figure 3 This is a schematic diagram of the structure of the present invention from a bottom view;

[0030] Figure 4 This is a schematic diagram of the ball screw mounting structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the support column installation structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the mounting structure of the drive gear and driven gear of the present invention;

[0033] Figure 7 This is a schematic diagram of the guide groove structure of the present invention;

[0034] Figure 8 This is a schematic diagram of the air-filled cylinder structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the internal structure of the air-filled cylinder of the present invention;

[0036] Figure 10 This is a schematic diagram of the lower guide plate and separator membrane structure of the present invention.

[0037] In the diagram: 1. Lower mounting base; 2. Support column; 3. Upper mounting base; 4. Support plate; 5. Motor No. 1; 6. Drive gear; 7. Driven gear; 8. Guide groove; 9. Ball screw; 10. Motor No. 2; 11. Air pump; 12. Valve; 13. Air inlet pipe; 14. Upper guide plate; 15. Lower guide plate; 16. Separator membrane; 17. Side plate; 18. Heating element. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1-10 The present invention provides a technical solution: an energy-saving air-extinguishing mechanism for glass bottle making, comprising a lower mounting base 1, a support column 2, an upper mounting base 3, a support plate 4, a first motor 5, a drive gear 6, a driven gear 7, a guide groove 8, a ball screw 9, a second motor 10, an air-extinguishing cylinder 11, a valve 12, an air inlet pipe 13, an upper guide plate 14, a lower guide plate 15, a separator membrane 16, a side plate 17, and a heating element 18.

[0040] A support column 2 is fixedly mounted on the upper surface of the lower mounting base 1, and an upper mounting base 3 is fixedly mounted on the outer surface of the support column 2. A circular mounting hole is provided through the surface of the upper mounting base 3. A support switching structure is provided between the lower mounting base 1 and the upper mounting base 3. The support switching structure realizes the position switching of the air cylinder 11 by rotating the support plate 4. The support switching structure includes a support plate 4, and a circular hole is provided through the surface of the support plate 4. The circular hole on the surface of the support plate 4 is fitted onto the outer surface of the support column 2, and there is a rotatable connection between the support plate 4 and the outer surface of the support column 2. Next, the support column 2 is a hollow structure with an open upper surface. A No. 1 motor 5 is installed above the support column 2. The output end of the No. 1 motor 5 is inserted into the interior of the support column 2. The No. 1 motor 5 is fixedly installed on the upper surface of the upper mounting base 3 by bolts. A drive gear 6 is fixedly installed on the output end of the No. 1 motor 5. The side surface of the drive gear 6 penetrates the surface of the support column 2. An arc-shaped notch is provided through the surface of the support column 2. The drive gear 6 meshes with the driven gear 7. The driven gear 7 is an internal gear structure. The driven gear 7 is fixedly installed on the upper surface of the support plate 4.

[0041] like Figure 1 , Figure 2 and Figure 3 As shown, when using this device, the upper mounting base 3 is fixed to the air-filling setting position of the glass bottle making station using bolts through the mounting holes on the surface, so that the two air-filling cylinders 11 are aligned with the two glass bottle forming stations respectively. During use, the two air-filling cylinders 11 form glass bottles on both sides respectively. The rotation of the support plate 4 can drive the two air-filling cylinders 11 to switch positions, thereby removing the two air-filling cylinders 11 from the glass bottle forming station to facilitate glass feeding. Specifically, the rotation process is as follows: the first motor 5 is started, and the output end of the first motor 5 rotates to drive the drive gear 6. When the drive gear 6 rotates, it transmits torque to the driven gear 7, causing the driven gear 7 to rotate around the axis of the support column 2. Since the driven gear 7 is fixedly installed on the upper surface of the support plate 4, the rotation of the driven gear 7 can drive the support plate 4 to rotate synchronously around the outer surface of the support column 2. During the rotation of the support plate 4, the circular hole on its surface maintains rotational engagement with the outer surface of the support column 2 to ensure a stable rotation trajectory. The circumferential rotation of the support plate 4 drives the air pump 11 to move around the support column 2 in a circular motion, thereby enabling the air pump 11 to enter different work positions along the guide groove 8.

[0042] A guide groove 8 is provided through the surface of the lower mounting base 1. The guide groove 8 is a through arc structure. One end of the guide groove 8 passes through the side surface of the lower mounting base 1. Two guide grooves 8 are symmetrically arranged at the center of the surface of the lower mounting base 1. Each guide groove 8 is provided with a set of driving structures. The driving structure realizes the vertical movement of the air pump 11 through the ball screw 9. The driving structure includes the ball screw 9, which is inserted through the guide groove 8. The upper end of the ball screw 9 passes through the surface of the support plate 4 and is fixedly connected to the output end of the second motor 10. The second motor 10 is fixedly installed on the upper surface of the support plate 4. The slide on the outer surface of the ball screw 9 is fixedly connected to the outer surface of the air pump 11. A valve 12 is provided through the upper surface of the air pump 11. One end of the valve 12 is inserted into the air pump 11, and the other end of the valve 12 is connected through the air inlet pipe 13. The air inlet pipe 13 is a flexible hose structure that connects to compressed air.

[0043] like Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the air inlet pipe 13 is connected to an external compressed air source. After the air venting cylinder 11 rotates to the target position through the support switching structure, the second motor 10 is started. The output end of the second motor 10 drives the ball screw 9 to rotate synchronously. When the ball screw 9 rotates, the slide table on the outer surface moves vertically along the axis of the ball screw 9. Since the slide table is fixedly connected to the air venting cylinder 11, the vertical movement of the slide table will drive the air venting cylinder 11 to rise and fall synchronously, realizing the height adjustment of the air venting cylinder 11. During the rising and falling process, when the air venting cylinder 11 is adjusted to a suitable height, the second motor 10 is turned off, the air venting cylinder 11 stops rising and falling and maintains its current position, the valve 12 is opened, and the external compressed air enters the valve 12 through the air inlet pipe 13 and flows into the air venting cylinder 11, providing a stable airflow for subsequent air venting operations.

[0044] The air pump 11 has a three-section compression structure. The inner wall of the air pump 11 is provided with a two-stage flow guiding structure. The two-stage flow guiding structure achieves the effect of guiding and diverting air through the upper flow guide plate 14 and the lower flow guide plate 15. The two-stage flow guiding structure includes the upper flow guide plate 14, which is a spiral plate structure. The upper flow guide plate 14 is fixedly installed on the inner wall of the air pump 11 near the valve 12. An air outlet is provided at the bottom of the air pump 11. The lower flow guide plate 15 is fixedly installed on the inner wall of the end of the air pump 11 near the air outlet. The lower flow guide plate 15 is an annular structure. The center of the lower flow guide plate 15 is a conical through hole. The surface of the lower flow guide plate 15 is provided with circular diversion holes at equal intervals. A separator membrane 16 is fixedly installed on the inner wall of the circular diversion holes on the surface of the lower flow guide plate 15. A cross-shaped opening is provided through the surface of the separator membrane 16.

[0045] like Figure 8 , Figure 9 and Figure 10As shown, when compressed air enters the air-filled cylinder 11 through the inlet pipe 13 and valve 12, it first contacts the upper guide plate 14. Since the upper guide plate 14 has a spiral plate structure, the airflow flows along a spiral trajectory under its guidance, forming a stable vortex. Simultaneously, the three-section reduction structure of the air-filled cylinder 11 gradually reduces the internal space. During the vortex flow, the airflow is constrained by space, and its velocity gradually increases. The vortex airflow with a certain velocity continues to flow towards the outlet at the bottom of the air-filled cylinder 11. Upon reaching the lower guide plate 15, it is split, with a portion of the airflow passing through the lower guide plate. The conical through-hole at the center of the flow plate 15 forms the main airflow. The structure of the conical through-hole further converges the airflow, enhancing the impact force of the main airflow, which acts on the central area of ​​the glass blank. Another part of the airflow enters the circular diversion hole on the surface of the lower guide plate 15. Under the action of the dividing membrane 16 on the inner wall of the diversion hole, it diffuses evenly through the cross-shaped opening to form an auxiliary diversion airflow. The auxiliary diversion airflow covers the edge area of ​​the glass blank and works with the main airflow to achieve all-round air blasting of the glass blank, avoiding defects such as uneven bottle wall thickness and bottle mouth deformation caused by airflow turbulence or uneven pressure.

[0046] The surface of the lower mounting base 1 is provided with a preheating structure. The preheating structure preheats the surface of the air cylinder 11 through the side plate 17 and the heating element 18. The preheating structure includes the side plate 17, which is an arc-shaped plate structure. The side plate 17 is fixedly installed on the outer surface of the lower mounting base 1. The side plate 17 is perpendicular to the guide groove 8. There are two side plates 17 symmetrically arranged in the center. The two side plates 17 are located on the rotation path of the air cylinder 11. The side surface of the side plate 17 is fixedly installed with the heating element 18, which is connected to an external power supply.

[0047] like Figure 1 and Figure 2 As shown, before starting the glass bottle making production line, the external power supply of the heating element 18 is connected in advance. After the heating element 18 is powered on, it starts to heat up. The heat is transferred to the arc-shaped inner surface of the side plate 17 through the side plate 17. Since the side plate 17 is located on the rotation path of the air-filling cylinder 11, when the air-filling cylinder 11 rotates to the preheating station corresponding to the side plate 17 through the support switching structure, the outer surface of the air-filling cylinder 11 corresponds to the arc-shaped inner surface of the side plate 17. The heat generated by the heating element 18 is transferred to the surface of the air-filling cylinder 11. After the heat is continuously transferred to the surface of the air-filling cylinder 11, it penetrates into the interior of the air-filling cylinder 11 and heats the internal space of the air-filling cylinder 11. While the air-filling cylinder 11 is waiting for material to be loaded at the preheating station, the internal air is heated and the temperature rises, thus preheating the internal airflow and avoiding thermal shock during subsequent air filling.

[0048] Working principle: The upper mounting base 3 is fixed to the glass bottle making gas filling station with bolts, so that the two gas filling cylinders 11 are respectively aligned with the forming station. The air inlet pipe 13 is connected to the compressed air source. The heating element 18 is connected to the power supply for preheating. The first motor 5 is started, and the drive gear 6 drives the driven gear 7 to rotate, thereby driving the support plate 4 to rotate around the support column 2. The gas filling cylinder 11 switches stations along the guide groove 8. The gas filling cylinder 11 in the idle station is facing the side plate 17. The cylinder body and internal airflow are preheated by the heating element 18. After the gas filling cylinder 11 is in place, the second motor 10 is started, and the ball screw 9 drives the gas filling cylinder 11 to rise and fall vertically. After adjusting to the appropriate height, the machine is stopped. The valve 12 is opened, and the compressed air enters the gas filling cylinder 11 through the air inlet pipe 13. It forms a stable vortex through the spiral upper guide plate 14, and then passes through the conical through hole of the lower guide plate 15 and the diversion hole with the separator 16, which divides into the main airflow and the auxiliary airflow, and rushes into the glass blank from all directions to complete the forming.

[0049] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention.

Claims

1. An energy-saving gas-expelling mechanism for glass bottle making, comprising a lower mounting base (1), wherein a support column (2) is fixedly mounted on the upper surface of the lower mounting base (1), characterized in that: The upper mounting base (3) is fixedly installed on the outer surface of the support column (2). A circular mounting hole is provided through the surface of the upper mounting base (3). A support switching structure is provided between the lower mounting base (1) and the upper mounting base (3). The support switching structure realizes the position switching of the air pump (11) by rotating the support plate (4).

2. The energy-saving gas-extinguishing mechanism for glass bottle making according to claim 1, characterized in that: The support switching structure includes a support plate (4), and a circular hole is provided through the surface of the support plate (4). The circular hole on the surface of the support plate (4) is fitted onto the outer surface of the support column (2). The support plate (4) and the outer surface of the support column (2) are rotatably connected. The support column (2) is a hollow structure with an open upper surface. A No. 1 motor (5) is provided above the support column (2). The output end of the No. 1 motor (5) is inserted into the interior of the support column (2). The No. 1 motor (5) is fixedly installed on the upper surface of the upper mounting base (3) by bolts.

3. The energy-saving gas-extinguishing mechanism for glass bottle making according to claim 2, characterized in that: The output end of the No. 1 motor (5) is fixedly installed with a drive gear (6). The side surface of the drive gear (6) penetrates the surface of the support column (2). The surface of the support column (2) is provided with an arc-shaped notch. The drive gear (6) meshes with the driven gear (7). The driven gear (7) is an internal gear structure. The driven gear (7) is fixedly installed on the upper surface of the support plate (4).

4. The gas-extinguishing mechanism for energy-saving glass bottle making according to claim 1, characterized in that: The surface of the lower mounting base (1) is provided with a guide groove (8), which is a through arc structure. One end of the guide groove (8) penetrates the side surface of the lower mounting base (1). The surface of the lower mounting base (1) is symmetrically provided with two guide grooves (8). Each guide groove (8) is provided with a set of driving structures. The driving structures realize the vertical movement of the air pump (11) through the ball screw (9).

5. The energy-saving gas-extinguishing mechanism for glass bottle making according to claim 4, characterized in that: The drive structure includes a ball screw (9), which is inserted through the guide groove (8). The upper end of the ball screw (9) passes through the surface of the support plate (4) and is fixedly connected to the output end of the second motor (10). The second motor (10) is fixedly installed on the upper surface of the support plate (4).

6. The energy-saving gas-extinguishing mechanism for glass bottle making according to claim 5, characterized in that: The slide on the outer surface of the ball screw (9) is fixedly connected to the outer surface of the air pump (11). A valve (12) is provided through the upper surface of the air pump (11). One end of the valve (12) is inserted into the air pump (11), and the other end of the valve (12) is connected through the air inlet pipe (13). The air inlet pipe (13) is a flexible hose structure connected to compressed air.

7. The energy-saving gas-extinguishing mechanism for glass bottle making according to claim 1, characterized in that: The air-blowing cylinder (11) has a three-section shrinkage structure. The inner wall of the air-blowing cylinder (11) is provided with a two-stage flow guiding structure. The two-stage flow guiding structure achieves the effect of guiding and diverting air through the upper flow guiding plate (14) and the lower flow guiding plate (15).

8. The energy-saving gas-extinguishing mechanism for glass bottle making according to claim 7, characterized in that: The dual-stage flow guiding structure includes an upper flow guiding plate (14), which is a spiral plate structure. The upper flow guiding plate (14) is fixedly installed on the inner wall of the air-filling cylinder (11) near the valve (12). An air outlet is provided at the bottom of the air-filling cylinder (11). A lower flow guiding plate (15) is fixedly installed on the inner wall of the air-filling cylinder (11) near the air outlet. The lower flow guiding plate (15) is an annular structure. The center of the lower flow guiding plate (15) is a conical through hole. Circular diversion holes are arranged equidistantly on the surface of the lower flow guiding plate (15). A separator membrane (16) is fixedly installed on the inner wall of the circular diversion holes on the surface of the lower flow guiding plate (15). A cross-shaped opening is provided through the surface of the separator membrane (16).

9. The energy-saving gas-extinguishing mechanism for glass bottle making according to claim 1, characterized in that: The surface of the lower mounting base (1) is provided with a preheating structure, which preheats the surface of the air cylinder (11) through the side plate (17) and the heating plate (18).

10. The energy-saving gas-extinguishing mechanism for glass bottle making according to claim 9, characterized in that: The preheating structure includes a side plate (17), which is an arc-shaped plate structure. The side plate (17) is fixedly installed on the outer surface of the lower mounting base (1). The side plate (17) is perpendicular to the guide groove (8). There are two side plates (17) arranged symmetrically in the center. The two side plates (17) are located on the rotation path of the air pump (11). A heating element (18) is fixedly installed on the side surface of the side plate (17). The heating element (18) is connected to an external power source.

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