A loudspeaker lifting drying tunnel machine

Abstract

The present invention provides a loudspeaker lifting drying tunnel machine, which comprises a conveying mechanism, a tray loading mechanism and a drying tunnel mechanism that are sequentially arranged and installed on a frame. The conveying mechanism includes an upper workbench and a lower workbench arranged on the frame. The tray loading mechanism includes a lifting module and a lowering module. The lowering module is installed between the conveying mechanism and the drying tunnel mechanism, and the lifting module is installed on one side of the lowering module. The drying tunnel mechanism includes an oven and a cooling box that are sequentially arranged on the frame. The loudspeaker lifting drying tunnel machine of the present invention has a simple structure, is convenient to operate, reduces the rejection rate, and saves the enterprise cost; adopts the method of automatic feeding and automatic discharging to realize the automatic operation of loudspeaker drying, and improves the production efficiency; insulating doors are arranged at both ends of the drying tunnel, which improves the thermal efficiency of drying.

Description

Technical Field

[0001] The invention belongs to the field of automatic assembly machinery, in particular to a loudspeaker lifting drying tunnel machine. Background Art

[0002] The existing loudspeaker drying tunnel machines are generally straight drying tunnels, which require manual operation to feed the loudspeakers to be dried and take out the dried loudspeakers. There are no doors at both ends of the drying tunnel or only curtain doors are used for heat insulation, resulting in serious heat loss and low thermal efficiency of drying. Summary of the Invention

[0003] The technical problem solved by the invention is to provide a loudspeaker lifting drying tunnel machine, which improves the thermal efficiency of drying by setting heat-insulating doors at both ends of the drying tunnel. At the same time, the automatic feeding and automatic discharging methods are adopted to realize the automatic operation of loudspeaker drying and improve the production efficiency.

[0004] The technical solution for achieving the purpose of the invention is as follows:

[0005] A loudspeaker lifting drying tunnel machine includes a conveying mechanism, a tray loading mechanism and a drying tunnel mechanism which are sequentially arranged and installed on a frame;

[0006] Among them, the conveying mechanism includes an upper workbench and a lower workbench arranged on the frame. A conveying belt is provided on the upper workbench, and the loudspeakers to be loaded on the tray are placed on the conveying belt. The conveying belt is driven by a stepping motor, and the stepping motor is installed under the upper workbench; A longitudinal bracket along the direction of the conveying belt is fixedly arranged on the upper workbench. A first stepping motor and a belt in the same direction are provided on the longitudinal bracket. A transverse bracket is installed on the belt, and the first stepping motor is used to drive the belt to drive the transverse bracket to make longitudinal reciprocating movements; A second stepping motor is installed on one side of the transverse bracket. The push rod of the second stepping motor is connected to one end of an extension arm. The second stepping motor is used to push the extension arm to make transverse reciprocating movements; A downward first vertical cylinder is installed on the outer side of the other end of the extension arm. The push rod of the first vertical cylinder is connected to a manipulator. The first vertical cylinder is used to push the manipulator to make vertical reciprocating movements, and the manipulator is used to grab the loudspeakers on the conveying belt; A third stepping motor is installed on the lower workbench, and the end of the push rod of the third stepping motor is connected to a push plate. The position of the push plate is horizontally corresponding to the position of the conveying line;

[0007] The tray loading mechanism includes a lifting module and a lowering module. The lowering module is installed between the conveying mechanism and the drying tunnel mechanism, and the lifting module is installed on one side of the lowering module. Among them, the lifting module includes a lifting box body, a worm gear box, a lifting lead screw, a motor, a sliding frame and a vacuum assembly. Two worm gear boxes are respectively installed on both sides of the lifting box body and connected by a shaft. The worm gear box is electrically connected to the motor. The lifting lead screw is installed in the lifting box body and connected to the worm gear box. A bracket is mounted on the lifting lead screw, and the tray to be loaded is placed in the bracket. The sliding frame is installed at the top inside the lifting box body and can slide horizontally into the lowering module. The sliding frame is connected to the connecting plate through a second vertical cylinder. A number of vacuum assemblies are installed downward on the connecting plate, and the vacuum assemblies are connected to the controller. The lowering module includes a lowering box body, a worm gear box, a lowering lead screw, a motor. Two worm gear boxes are respectively installed on both sides of the lowering box body and connected by a shaft. The worm gear box is electrically connected to the motor. The lowering lead screw is installed in the lowering box body and connected to the worm gear box. A bracket is mounted on the lowering lead screw, and the tray to be loaded transferred from the lifting module is placed in the bracket.

[0008] The drying tunnel mechanism includes an oven and a cooling box arranged in sequence on the frame. A second heat insulation door is provided between the oven and the cooling box. A first heat insulation door is provided at the entrance of the oven. Both ends of the oven are open and accommodate a conveying line. The conveying line runs through the inner cavity of the oven. A heating structure and a temperature sensor are provided inside the oven. The heating structure and the temperature sensor are both arranged at the top inside the oven and connected to the controller. At the exit of the cooling box, there is a third heat insulation door. A number of rollers are evenly installed at the bottom inside the cooling box, and the rollers are connected to a stepping motor.

[0009] The cylinder, the motor, the worm gear box, the heating structure, the temperature sensor, and the controller are all connected to the power supply.

[0010] Further, in the loudspeaker lifting drying tunnel machine of the present invention, cylinders and limit plates are provided above the first heat insulation door, the second heat insulation door, and the third heat insulation door. The cylinders are connected to the tops of the first heat insulation door, the second heat insulation door, and the third heat insulation door. The cylinders are used to push the first heat insulation door, the second heat insulation door, and the third heat insulation door to move vertically. The distance between the limit plate and the top surface of the oven is greater than or equal to the height of the first heat insulation door, the second heat insulation door, and the third heat insulation door.

[0011] Further, in the loudspeaker lifting drying tunnel machine of the present invention, the heating structure includes a number of U-shaped heaters and a controller, and the U-shaped heaters are controlled by the controller to heat.

[0012] Further, in the loudspeaker lifting drying tunnel machine of the present invention, the vacuum assembly includes a connecting rod, a vacuum suction cup, a vacuum generator, and a fixing cap. The connecting rod is fixedly connected to the sliding frame through the fixing cap. The vacuum suction cup is installed at the bottom end of the connecting rod. The controller is connected to the vacuum suction cup through the vacuum generator.

[0013] Further, in the speaker lifting drying tunnel machine of the present invention, triangular guiding plates are installed on both the left and right sides along the direction of the conveying belt on the upper working table, and there is a gap between the two guiding plates. The guiding plates are used to guide the speakers on the conveying belt with loading trays to fixed positions; one right-angled edge of the guiding plate is along the edge of the upper working table, and the other right-angled edge is connected to the positioning plate; a groove is provided on the positioning plate corresponding to the gap between the two guiding plates, and the groove is a rounded rectangle, which is used to determine the position of the speaker to be loaded and adjust the direction of the speaker; there is a gap between the guiding plate, the positioning plate and the upper working table.

[0014] Further, in the speaker lifting drying tunnel machine of the present invention, the gap between the guiding plate, the positioning plate and the upper working table is 2 - 20 mm.

[0015] Compared with the prior art, the present invention adopts the above technical solutions and has the following technical effects:

[0016] 1. The speaker lifting drying tunnel machine of the present invention has a simple structure, is easy to operate, reduces the rejection rate, and saves the enterprise cost;

[0017] 2. The speaker lifting drying tunnel machine of the present invention adopts the method of automatic feeding and automatic discharging to realize the automatic operation of speaker drying, and improves the production efficiency;

[0018] 3. The speaker lifting drying tunnel machine of the present invention is provided with heat insulation doors at both ends of the drying tunnel, which improves the heat efficiency of drying. Description of the Drawings

[0019] Figure 1 is the overall structural schematic diagram of the speaker lifting drying tunnel machine of the present invention.

[0020] Figure 2 is the structural schematic diagram of the loading mechanism of the speaker lifting drying tunnel machine of the present invention.

[0021] Figure 3 is the partial structural schematic diagram of the conveying mechanism of the speaker lifting drying tunnel machine of the present invention.

[0022] Figure 4 is the structural schematic diagram of the vacuum component of the speaker lifting drying tunnel machine of the present invention.

[0023] Meanings of the attached reference numerals: 1: upper workbench, 2: lower workbench, 3: conveyor belt, 4: stepper motor, 5: longitudinal bracket, 6: first stepper motor, 7: belt, 8: transverse bracket, 9: second stepper motor, 10: push plate, 11: extension arm, 12: first vertical cylinder, 13: manipulator, 14: third stepper motor, 15: lifting module, 16: lowering module, 17: worm gear box, 18: lifting lead screw, 19: sliding carriage, 20: vacuum assembly, 201: connecting rod, 202: fixing cap, 203: vacuum suction cup, 21: tray, 22: oven, 23: cooling box, 24: second heat insulation door, 25: first heat insulation door, 26: heating structure, 27: third heat insulation door, 28: roller, 29: piston rod, 30: limit plate, 31: guide plate, 32: positioning plate, 33: groove, 34: motor. Detailed implementation manners

[0024] The following details the implementation manners of the present invention. Examples of the implementation manners are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The implementation manners described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0025] A loudspeaker lifting drying tunnel machine, comprising a conveying mechanism, a tray loading mechanism and a drying tunnel mechanism which are sequentially arranged and installed on a frame; wherein, the conveying mechanism includes an upper workbench 1 and a lower workbench 2 arranged on the frame. A conveying belt 3 is provided on the upper workbench 1, and loudspeakers to be loaded onto trays are placed on the conveying belt 3. The conveying belt 3 is driven by a stepping motor 4, and the stepping motor 4 is installed below the upper workbench 1. A longitudinal bracket 5 along the direction of the conveying belt 3 is fixedly arranged on the upper workbench 1. A first stepping motor 6 and a belt 7 in the same direction are provided on the longitudinal bracket 5. A transverse bracket 8 is installed on the belt 7. The first stepping motor 6 is used to drive the belt 7 to drive the transverse bracket 8 to make longitudinal reciprocating motion. A second stepping motor 9 is installed on one side of the transverse bracket 8. The push rod of the second stepping motor 9 is connected to one end of an extension arm 11. The second stepping motor 9 is used to push the extension arm 11 to make transverse reciprocating motion. A downward first vertical cylinder 12 is installed on the outer side of the other end of the extension arm 11. The push rod of the first vertical cylinder 12 is connected to a manipulator 13. The first vertical cylinder 12 is used to push the manipulator 13 to make vertical reciprocating motion. The manipulator 13 is used to grab the loudspeakers on the conveying belt 3 or to place the loudspeakers on the trays to be loaded. A third stepping motor 14 is installed on the lower workbench 2. The end of the push rod of the third stepping motor 14 is connected to a push plate 10, and the position of the push plate 10 is horizontally corresponding to the position of the conveying line. The tray loading mechanism includes a lifting module 15 and a lowering module 16. The lowering module 16 is installed between the conveying mechanism and the drying tunnel mechanism, and the lifting module 15 is installed on one side of the lowering module 16. Among them, the lifting module 15 includes a lifting box body, a worm gear box 17, a lifting lead screw 18, a motor 34, a sliding frame 19 and a vacuum assembly 20. Two worm gear boxes 17 are respectively installed on both sides of the lifting box body and are connected by a shaft. The worm gear box 17 is electrically connected to the motor 34. The lifting lead screw 18 is installed in the lifting box body and is connected to the worm gear box 17. The worm gear box 17 is used to drive the lifting lead screw 18 to make up and down reciprocating motion. A bracket is arranged on the lifting lead screw 18, and several trays 21 to be loaded are placed in the bracket. The sliding frame 19 is installed on the top inside the lifting box body and can slide horizontally into the lowering module 16. The sliding frame 19 is connected to a connecting plate through a second vertical cylinder. Several vacuum assemblies 20 are installed downward on the connecting plate, and the vacuum assemblies 20 are connected to a controller. The lowering module 16 includes a lowering box body, a worm gear box, a lowering lead screw and a motor. Two worm gear boxes are respectively installed on both sides of the lowering box body and are connected by a shaft. The worm gear box is electrically connected to the motor. The lowering lead screw is installed in the lowering box body and is connected to the worm gear box. A bracket is arranged on the lowering lead screw, and the trays 21 to be loaded transferred from the lifting module 15 are placed in the bracket. The worm gear box is used to drive the lowering lead screw to make up and down reciprocating motion;The drying tunnel mechanism includes an oven 22 and a cooling box 23 that are sequentially arranged on the frame. A second heat insulation door 24 is provided between the oven 22 and the cooling box 23. A first heat insulation door 25 is provided at the entrance of the oven 22. The oven 22 has openings at both ends and houses a conveyor line. The conveyor line runs through the inner cavity of the oven 22. A heating structure 26 and a temperature sensor are provided inside the oven 22. The heating structure 26 and the temperature sensor are both arranged on the inner top of the oven 22 and are connected to the controller. At the exit of the cooling box 23, there is a third heat insulation door 27. A number of rollers 28 are evenly installed at the bottom of the cooling box 23. The rollers 28 are connected to a stepping motor. The cylinder, motor, worm gear box, heating structure 26, temperature sensor, and controller are all connected to the power supply.

[0026] Embodiment 1

[0027] A loudspeaker lifting drying tunnel machine, as Figure 1 shown, includes a conveying mechanism, a tray loading mechanism, and a drying tunnel mechanism that are sequentially arranged and installed on the frame.

[0028] Among them, the conveying mechanism includes an upper workbench 1 and a lower workbench 2 arranged on the frame. A conveying belt 3 is provided on the upper workbench 1. Loudspeakers to be tray-loaded are placed on the conveying belt 3. The conveying belt 3 is driven by a stepping motor 4, and the stepping motor 4 is installed below the upper workbench 1.

[0029] On the upper workbench 1, triangular guiding plates 31 are installed on both the left and right sides along the direction of the conveying belt 3, and there is a spacing between the two guiding plates 31. The guiding plates 31 are used to guide the loudspeakers to be tray-loaded on the conveying belt 3 to a fixed position. One right-angled edge of the guiding plate 31 is along the edge of the upper workbench 1, and the other right-angled edge is connected to a positioning plate 32. A groove 33 is provided on the positioning plate 32 corresponding to the spacing between the two guiding plates 31. The groove 33 is a rounded rectangle, which is used to determine the position of the loudspeaker to be tray-loaded and adjust the direction of the loudspeaker. There is a gap between the guiding plate 31, the positioning plate 32 and the upper workbench 1. The gap between the guiding plate 31, the positioning plate 32 and the upper workbench 1 is 2 - 20 mm, so that a safe distance is maintained between the guiding plate 31, the positioning plate 32 and the upper workbench 1.

[0030] A longitudinal bracket 5 along the direction of the conveying belt 3 is fixedly arranged on the upper workbench 1. A first stepping motor 6 and a belt 7 in the same direction are provided on the longitudinal bracket 5. A transverse bracket 8 is installed on the belt 7. The first stepping motor 6 is used to drive the belt 7 to drive the transverse bracket 8 to make longitudinal reciprocating movements. A second stepping motor 9 is installed on one side of the transverse bracket 8. The push rod of the second stepping motor 9 is connected to one end of an extension arm 11. The second stepping motor 9 is used to push the extension arm 11 to make transverse reciprocating movements.

[0031] On the outer side of the other end of the lengthened arm 11, a downward first vertical cylinder 12 is installed. The push rod of the first vertical cylinder 12 is connected to the manipulator 13. The first vertical cylinder 12 is used to push the manipulator 13 to perform vertical reciprocating motion, and the manipulator 13 is used to grab the speakers on the conveyor belt 3.

[0032] On the lower workbench 2, a third stepping motor 14 is installed. The end of the push rod of the third stepping motor 14 is connected to the push plate 10, and the position of the push plate 10 corresponds horizontally to the position of the conveyor line.

[0033] The tray loading mechanism includes a lifting module 15 and a lowering module 16. The lowering module 16 is installed between the conveying mechanism and the baking channel mechanism, and the lifting module 15 is installed on one side of the lowering module 16. Among them, the lifting module 15 includes a lifting box body, a worm gear box 17, a lifting lead screw 18, a motor 34, a sliding frame 19 and a vacuum assembly 20. Two worm gear boxes 17 are respectively installed on both sides of the lifting box body and connected by a shaft. The worm gear box 17 is electrically connected to the motor 34. The lifting lead screw 18 is installed in the lifting box body and connected to the worm gear box 17. The worm gear box 17 drives the lifting lead screw 18 to perform up and down reciprocating motion. A bracket is installed on the lifting lead screw 18, and several trays to be loaded 21 are placed in the bracket. The sliding frame 19 is installed at the top inside the lifting box body and can slide horizontally into the lowering module 16. The sliding frame 19 is connected to the connecting plate through a second vertical cylinder. Several vacuum assemblies 20 are installed downward on the connecting plate, and the vacuum assemblies 20 are connected to the controller. The lowering module 16 includes a lowering box body, a worm gear box, a lowering lead screw and a motor. Two worm gear boxes are respectively installed on both sides of the lowering box body and connected by a shaft. The worm gear box is electrically connected to the motor. The lowering lead screw is installed in the lowering box body and connected to the worm gear box. A bracket is installed on the lowering lead screw, and the trays to be loaded 21 transferred from the lifting module 15 are placed in the bracket. The worm gear box drives the lowering lead screw to perform up and down reciprocating motion. The vacuum assembly 20 includes a connecting rod 201, a vacuum suction cup 203, a vacuum generator and a fixing cap 202. The connecting rod 201 is fixedly connected to the sliding frame 19 through the fixing cap 202. The vacuum suction cup is installed at the bottom end of the connecting rod 201. The controller is connected to the vacuum suction cup 203 through the vacuum generator.

[0034] The drying oven mechanism includes an oven 22 and a cooling box 23 that are sequentially arranged on the frame. A second heat insulation door 24 is provided between the oven 22 and the cooling box 23, and a first heat insulation door 25 is provided at the entrance of the oven 22. Both ends of the oven 22 are open and accommodate a conveyor line. The conveyor line runs through the inner cavity of the oven 22. A heating structure 26 and a temperature sensor are provided inside the oven 22. The heating structure 26 and the temperature sensor are both arranged at the top inside the oven 22 and are connected to a controller. At the exit of the cooling box 23, there is a third heat insulation door 27. A number of rollers 28 are evenly installed at the bottom inside the cooling box 23, and the rollers 28 are connected to a stepping motor. Above the first heat insulation door 25, the second heat insulation door 24, and the third heat insulation door 27, there are cylinders 29 and limit plates 30. The cylinders 29 are connected to the tops of the first heat insulation door 25, the second heat insulation door 24, and the third heat insulation door 27. The cylinders are used to push the first heat insulation door 25, the second heat insulation door 24, and the third heat insulation door 27 to move vertically. The distance between the limit plate 30 and the top surface of the oven 22 is greater than or equal to the height of the first heat insulation door 25, the second heat insulation door 24, and the third heat insulation door 27. The heating structure 26 includes a number of U-shaped heaters and a controller, and the U-shaped heaters are controlled by the controller to heat.

[0035] The above-mentioned cylinders, motors, heating structures, temperature sensors, and controllers are all connected to a power source.

[0036] Embodiment 2

[0037] The overall working process of the loudspeaker lifting drying oven machine is as follows:

[0038] 1. Place the tray

[0039] Start the worm gear box 17 to control the lowering screw rod to adjust the bracket in the lowering module 16 to the upper working plane; place the tray 21 to be loaded on the bracket in the lifting module 15. Start the worm gear box 17 to control the lifting screw rod 18 to lift the tray 21 to be loaded together with the bracket to the upper working plane. Start the second vertical cylinder to control the vacuum assembly 20 to move downward and suck the uppermost tray 21 to be loaded, and then return to the original position. Transfer the tray 21 to be loaded to the bracket in the lowering module 16 via the sliding frame 19, and the vacuum assembly 20 slides back into the lifting module 15.

[0040] 2. Grab the loudspeaker

[0041] Place the loudspeaker to be loaded on the conveyor belt 3. Turn on the stepping motor 4, and the conveyor belt 3 moves forward, driving the loudspeaker to be loaded forward and guiding it to the designated position by the guide plate 31 and the positioning plate 32. Turn on the first vertical cylinder 12, and the manipulator 13 grabs the loudspeaker on the conveyor belt 3 downward and returns to the original position of the manipulator 13.

[0042] 3. Place the loudspeaker

[0043] Start the first stepping motor 6, the belt 7 starts to move forward, driving the transverse bracket 8 to move forward, and then realizing the forward movement of the manipulator 13; when the manipulator 13 moves above the first row of the tray 21 to be loaded, start the first vertical cylinder 12, and the manipulator 13 places the speaker downward at the position of the first column in the first row; the manipulator 13 returns to the original position and grabs the next speaker.

[0044] Start the second stepping motor 9, the push rod pushes the extension arm 11, and then realizes the rightward movement of the manipulator 13; start the first stepping motor 6, and the manipulator 13 moves forward; when the manipulator 13 moves above the tray 21 to be loaded, start the first vertical cylinder 12, and the manipulator 13 places the speaker downward at the position of the second column in the first row; the manipulator 13 returns to the original position and grabs the next speaker.

[0045] And so on. After filling the first row, the manipulator 13 returns to the original position and grabs the next speaker, and starts to place the speaker in the second row of the tray until the tray is full of speakers.

[0046] 4. Dry the speakers

[0047] Start the worm gear box 17 to control the descending lead screw to move the bracket in the descending module 16 from the upper working plane to the lower working plane, open the first heat insulation door 25, and start the third stepping motor 14 to control the push plate 10 to push the tray 21 full of speakers into the oven 22.

[0048] Repeat the above steps until the conveyor line in the oven 22 is full of trays 21; start the heating structure 26 to dry the speakers; after drying, open the second heat insulation door 24, transfer the tray to the cooling box 23 through the rollers 28, close the second heat insulation door 24, and open the third heat insulation door 27 after a certain time, and use the rollers 28 to remove the tray.

[0049] The speaker lifting and drying tunnel machine of the present invention has a simple structure, convenient operation, reduces the rejection rate, and saves the enterprise cost; adopts the automatic feeding and automatic discharging method to realize the automatic operation of speaker drying, and improves the production efficiency; heat insulation doors are arranged at both ends of the drying tunnel to improve the heat efficiency of drying.

[0050] The above are only some embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements can still be made, and these improvements should be regarded as the protection scope of the present invention.

Claims

1. A speaker lifting drying tunnel machine, characterized in that It includes a conveying mechanism, a tray loading mechanism and a baking channel mechanism that are sequentially arranged and installed on a rack; Among them, the conveying mechanism includes an upper workbench (1) and a lower workbench (2) arranged on the rack. A conveying belt (3) is provided on the upper workbench (1). Speakers to be loaded onto trays are placed on the conveying belt (3). The conveying belt (3) is driven by a stepping motor (4), and the stepping motor (4) is installed below the upper workbench (1); A longitudinal bracket (5) along the direction of the conveying belt (3) is fixedly arranged on the upper workbench (1). A first stepping motor (6) and a belt (7) in the same direction are provided on the longitudinal bracket (5). A transverse bracket (8) is installed on the belt (7). The first stepping motor (6) is used to drive the belt (7) to drive the transverse bracket (8) to make longitudinal reciprocating movements; A second stepping motor (9) is installed on one side of the transverse bracket (8). The push rod of the second stepping motor (9) is connected to one end of an extension arm (11). The second stepping motor (9) is used to push the extension arm (11) to make transverse reciprocating movements; A downward first vertical cylinder (12) is installed on the outer side of the other end of the extension arm (11). The push rod of the first vertical cylinder (12) is connected to a manipulator (13). The first vertical cylinder (12) is used to push the manipulator (13) to make vertical reciprocating movements. The manipulator (13) is used to grab the speakers on the conveying belt (3); A third stepping motor (14) is installed on the lower workbench (2). The end of the push rod of the third stepping motor (14) is connected to a push plate (10). The position of the push plate (10) is horizontally corresponding to the position of the conveying line; The tray loading mechanism includes a lifting module (15) and a lowering module (16). The lowering module (16) is installed between the conveying mechanism and the baking channel mechanism. The lifting module (15) is installed on one side of the lowering module (16); Among them, the lifting module (15) includes a lifting box body, a worm gear box (17), a lifting lead screw (18), a motor (34), a sliding frame (19) and a vacuum assembly (20). Two worm gear boxes (17) are respectively installed on both sides of the lifting box body and are connected by a shaft. The worm gear box (17) is electrically connected to the motor (34). The lifting lead screw (18) is installed in the lifting box body and is connected to the worm gear box (17). A tray is provided on the lifting lead screw (18). A tray to be loaded (21) is placed in the tray; The sliding frame (19) is installed on the top inside the lifting box body and can slide horizontally into the lowering module (16). The sliding frame (19) is connected to a connecting plate through a second vertical cylinder. A number of vacuum assemblies (20) are installed downward on the connecting plate. The vacuum assembly (20) is connected to a controller; The lowering module (16) includes a lowering box body, a worm gear box, a lowering lead screw, a motor. Two worm gear boxes are respectively installed on both sides of the lowering box body and are connected by a shaft. The worm gear box is electrically connected to the motor. The lowering lead screw is installed in the lowering box body and is connected to the worm gear box. A tray is provided on the lowering lead screw. A tray to be loaded (21) transferred from the lifting module (15) is placed in the tray; The drying oven mechanism includes an oven (22) and a cooling box (23) that are sequentially arranged on the frame. A second heat insulation door (24) is provided between the oven (22) and the cooling box (23). A first heat insulation door (25) is provided at the entrance of the oven (22). The oven (22) has openings at both ends and houses a conveyor line. The conveyor line runs through the inner cavity of the oven (22). A heating structure (26) and a temperature sensor are provided inside the oven (22). The heating structure (26) and the temperature sensor are both arranged at the top inside the oven (22) and are connected to a controller. At the exit of the cooling box (23), a third heat insulation door (27) is provided. A number of rollers (28) are evenly installed at the bottom inside the cooling box (23). The rollers (28) are connected to a stepping motor. The cylinder, motor, worm gear box, heating structure (26), temperature sensor, and controller are all connected to a power source. Above the first heat insulation door (25), the second heat insulation door (24), and the third heat insulation door (27), a cylinder (29) and a limit plate (30) are provided. The cylinder (29) is connected to the top ends of the first heat insulation door (25), the second heat insulation door (24), and the third heat insulation door (27). The cylinder is used to push the first heat insulation door (25), the second heat insulation door (24), and the third heat insulation door (27) to move vertically. The distance between the limit plate (30) and the top surface of the oven (22) is greater than or equal to the height of the first heat insulation door (25), the second heat insulation door (24), and the third heat insulation door (27). The heating structure (26) includes a number of U-shaped heaters and a controller. The U-shaped heaters are controlled by the controller to heat.

2. The loudspeaker lifting drying tunnel machine according to claim 1, characterized in that, The vacuum assembly (20) includes a connecting rod (201), a vacuum suction cup (203), a vacuum generator, and a fixing cap (202). The connecting rod (201) is fixedly connected to the sliding frame (19) through the fixing cap (202). The vacuum suction cup is installed at the bottom end of the connecting rod (201). The controller is connected to the vacuum suction cup (203) through the vacuum generator.

3. The loudspeaker lifting drying tunnel machine according to claim 1, characterized in that On the upper workbench (1), triangular guiding plates (31) are installed on both the left and right sides along the direction of the conveyor belt (3). There is a gap between the two guiding plates (31). The guiding plates (31) are used to guide the speaker with a tape reel on the conveyor belt (3) to a fixed position. One right-angled edge of the guiding plate (31) is along the edge of the upper workbench (1), and the other right-angled edge is connected to a positioning plate (32). Grooves (33) are provided on the positioning plates (32) corresponding to the gap between the two guiding plates (31). The grooves (33) are rounded rectangles, which are used to determine the position of the speaker to be loaded on the tray and adjust the direction of the speaker. There are gaps between the guiding plates (31), the positioning plates (32), and the upper workbench (1).

4. The loudspeaker lifting drying tunnel machine according to claim 3, characterized in that The gaps between the guiding plates (31), the positioning plates (32), and the upper workbench (1) are 2 - 20 mm.

Images