A bathtub curing production line

Abstract

A bathtub curing production line saves space and automatically heats the bathtub. The feeder includes a base frame, a lifting mechanism arranged under the base frame, two belt conveyor mechanisms arranged on both sides of the base frame, and first and second stroke switches arranged between the two belt conveyor mechanisms and along the conveying direction of the belt conveyor mechanisms; the conveying line includes a chain conveyor, a plurality of blocking cylinders arranged along the conveying direction of the chain conveyor, and a plurality of third stroke switches arranged at the rear side of the blocking cylinder; a front end of a carrier plate for carrying the bathtub is provided with a trapezoidal opening connected to the shift rod of the blocking cylinder; two groups of conveyor lines are horizontally arranged in the oven, each group of conveyor lines includes two conveyor lines arranged up and down, and the inlet and outlet sides of the oven corresponding to each conveyor line are provided with a door body and a driving device for driving the door body to open and close; the inlet and outlet sides of a feeder correspond to one conveyor line and one group of conveyor lines respectively; the control device is connected to the first, second, and third stroke switches, the blocking cylinder, the lifting mechanism, the belt conveyor mechanism, and the driving device.

Description

Technical Field

[0001] The invention belongs to the technical field of bathtub manufacturing equipment, and in particular relates to a bathtub curing production line. Background Art

[0002] As people's living standards improve day by day, bathtubs have become an indispensable equipment for bathing and washing in the bathroom. At present, the most commonly used bathtubs are made of acrylic materials. Acrylic materials are an organic sheet (or fiberglass material) and are widely used. However, in the manufacturing process of acrylic bathtubs, the rigidity of acrylic bathtubs needs to be enhanced. Therefore, a layer of resin glass fiber is often sprayed on the back of the formed acrylic cylinder body, and then it has to be heated and cured to increase the rigidity of the cylinder body to the required rigidity. However, there is no bathtub curing production line designed today that can save space, has a large processing capacity, and has a high degree of intelligent automation.

[0003] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a bathtub curing production line, which has the advantages of saving space, high efficiency and high degree of intelligent automation.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A bathtub curing production line comprises an oven, wherein the oven further comprises a control device, a feeder, a conveyor line and a carrier plate for carrying the bathtub and movable on the conveyor line and the feeder;

[0007] The loading machine includes a base frame, a lifting mechanism fixed to the bottom of the base frame, two belt conveying mechanisms arranged on both sides of the base frame, and a first travel switch and a second travel switch arranged between the two belt conveying mechanisms and fixed to the base frame along the conveying direction of the belt conveying mechanisms;

[0008] The conveying line includes a chain conveyor, a plurality of third stroke switches, and a plurality of blocking cylinders; the plurality of blocking cylinders are sequentially arranged along the conveying direction of the chain conveyor, and the third stroke switch is correspondingly arranged at the rear side of the blocking cylinder;

[0009] The front end of the carrier plate is provided with a trapezoidal opening connected to the shift rod of the blocking cylinder;

[0010] Two groups of conveyor lines are horizontally arranged inside the oven, and each group of conveyor lines includes two conveyor lines arranged vertically; the oven is provided with a door body and a driving device for driving the door body to move up and down on the inlet side and the outlet side corresponding to each conveyor line inside the oven; one feeder is arranged corresponding to each group of conveyor lines, and one conveyor line is arranged corresponding to the inlet side of each feeder;

[0011] The control device is electrically connected to the first travel switch, the second travel switch, the third travel switch, the blocking cylinder, the lifting mechanism, the belt conveying mechanism, and the driving device respectively.

[0012] In the bathtub curing production line, the belt conveyor mechanism includes a driving shaft and a driven shaft rotatably arranged on a base frame, a conveying belt for conveying a carrier plate, and a driving mechanism for driving the driving shaft to rotate; pulleys are respectively fixed at both ends of the driving shaft and the driven shaft, and the conveying belt is wound around the pulleys of the driving shaft and the driven shaft; the base frame is provided with a plurality of supporting rollers that are rotatable and abut against the inner side surface of the conveying belt.

[0013] In the bathtub curing production line, the driving mechanism is a motor, the motor is fixed to the base frame, the driving shaft is fixed with a transmission wheel, the output shaft of the motor is fixed with a driving wheel, and a chain is meshed and connected between the driving wheel and the transmission wheel.

[0014] In the bathtub curing production line, protective plates are respectively provided on the outer sides of the base frame and the chain conveyor, the distance between the two protective plates is greater than or equal to the width of the carrier plate, the top surface of the protective plate is higher than the top surface of the carrier plate, and the carrier plate is a square plate.

[0015] In the bathtub curing production line, the inner side surface of the protective plate is provided with a groove which is slidably connected to the carrier plate.

[0016] In the bathtub curing production line, the lifting mechanism is a fixed hydraulic lift.

[0017] In the bathtub curing production line, the door body is made of transparent glass.

[0018] In the bathtub curing production line, the oven is provided with a slide rail slidably connected to the door body.

[0019] Beneficial effects:

[0020] The present invention provides a bathtub curing production line, which has the advantages of space saving, high efficiency and high intelligent automation. Compared with the prior art, the present invention is provided with four conveyor lines in the oven, which greatly increases the processing capacity of the oven and improves the space utilization rate; two loading machines are arranged outside the oven, and the lifting of the loading machines is realized by a lifting mechanism, so as to convey the bathtub to the conveyor line located at the upper part of the oven; a first stroke switch, a second stroke switch, a third stroke switch and a blocking cylinder are arranged, so that the bathtub can be conveyed to the loading machine in an orderly manner, so that the loading machine can convey the bathtub to the four conveyor lines inside the oven according to the working conditions of the oven, and can avoid the bathtub from colliding with the conveyor line and the loading machine to cause damage, which shows that the intelligent automation level is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a structural stereogram of the bathtub curing production line provided by the present invention.

[0022] Figure 2 This is a structural stereogram of a conveyor line in the bathtub curing production line provided by the present invention.

[0023] Figure 3 This is a structural stereogram of a loading machine in the bathtub curing production line provided by the present invention.

[0024] Figure 4 A top view of the structure of a loading machine in the bathtub curing production line provided by the present invention.

[0025] Figure 5 This is a schematic diagram of the interior of an oven in the bathtub curing production line provided by the present invention.

[0026] Figure 6 This is a schematic diagram of the connection between the door body and the driving device in the bathtub curing production line provided by the present invention. DETAILED DESCRIPTION

[0027] The present invention provides a bathtub curing production line. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0028] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 The present invention provides a bathtub curing production line, comprising an oven 3, which also includes a control device (not shown in the figure), a feeder 2, a conveyor line 1, and a carrier plate 4 for carrying a bathtub and movable on the conveyor line 1 and the feeder 2. The newly formed bathtub is placed on the carrier plate 4 through a bracket, passes through the conveyor line 1 and the feeder 2 in sequence, and enters the oven 3 for heating and curing treatment.

[0029] Among them, the loader 2 includes a base frame 21, a lifting mechanism 22 fixedly connected to the bottom of the base frame 21 by welding or bolts, two belt conveyor mechanisms arranged on both sides of the base frame 21, and a first travel switch 28 and a second travel switch 27 arranged between the two belt conveyor mechanisms and fixed to the base frame 21 along the conveying direction of the belt conveyor mechanisms.

[0030] Specifically, the belt conveying mechanism includes a driving shaft 23 and a driven shaft 24 rotatably arranged on the base frame 21 through bearings, a conveying belt 26 for conveying the carrier plate 4, and a driving mechanism 29 for driving the driving shaft 23 to rotate; pulleys 231 are respectively fixed at both ends of the driving shaft 23 and the driven shaft 24 by welding or integral molding, and the conveying belt 26 is wound around the pulleys 231 of the driving shaft 23 and the driven shaft 24; the base frame 21 is provided with a plurality of support rollers 20 that are rotatable and abut against the inner side surface of the conveying belt 26. In this embodiment, the support rollers 20 are rotatably arranged on the outer side surface of the base frame 21 at uniform intervals, contacting the inner side surface of the conveying belt 26, and are used to support the conveying belt, provide effective supporting force, and prevent the conveying belt from breaking due to excessive gravity of the bathtub body, so that the conveying belt can convey the bathtub body smoothly and quickly for a long time.

[0031] Specifically, the driving mechanism 29 is a motor, which is fixed to the base frame 21 by bolts, a driving shaft 23 is fixed with a transmission wheel (not marked in the figure), the output shaft of the motor is fixed with a driving wheel (not marked in the figure), and a chain 291 is meshed and connected between the driving wheel and the transmission wheel. When the motor works, power is transmitted through the chain, driving the driving shaft 23 to rotate, thereby driving the conveying belt 26 to work. Of course, a belt can also be used instead of the chain 291 to complete the power transmission.

[0032] The conveyor line 1 includes a chain conveyor 11, a plurality of third travel switches 13, and a plurality of blocking cylinders 12; the plurality of blocking cylinders 12 are sequentially arranged along the conveying direction of the chain conveyor 11, and the third travel switch 13 is correspondingly arranged at the rear side of the blocking cylinder 12. In this embodiment, only one third travel switch 13 and one blocking cylinder 12 are shown, and according to actual needs, a plurality of third travel switches and a plurality of blocking cylinders can be arranged along the conveying direction of the chain conveyor.

[0033] The front end of the carrier plate 4 is provided with a trapezoidal opening 41 connected to the stop rod of the blocking cylinder 12. Specifically, the outer side of the base frame 21 is provided with a protective plate 25, the protective plate 25 is located on the outer side of the conveying belt 26, the distance between the two protective plates 25 is greater than or equal to the width of the carrier plate 4, and the top surface of the protective plate 25 is higher than the top surface of the carrier plate 4. In addition, the outer side of the chain conveyor 11 is provided with a protective plate 14, the protective plate 14 is located on the outer side of the conveying chain on both sides of the chain conveyor 11, the distance between the two protective plates 14 is greater than or equal to the width of the carrier plate, and the top surface of the protective plate 14 is higher than the top surface of the carrier plate 4. In this embodiment, the spacing between the protective plates 25 on both sides of the base frame 21 is consistent with the spacing between the protective plates 14 on both sides of the chain conveyor 11. In addition, the carrier plate 4 is a square plate. The setting of the protective plate plays a role of limiting and guiding, which can prevent the carrier from falling from the conveyor belt and chain conveyor. More importantly, it ensures that the carrier can move along the conveying direction of the conveyor line, loader, and conveyor line in the oven in sequence, to prevent it from shifting on the horizontal plane and causing the carrier to get stuck, resulting in production line failure.

[0034] Specifically, the inner side surfaces of the protective plates 25 on both sides of the bottom frame 21 and the inner side surfaces of the protective plates 14 on both sides of the chain conveyor 11 are respectively provided with grooves 251 and 15 that are slidably connected to the carrier plate 4. Of course, guide wheels that can rotate and connect to the outer side surface of the carrier plate 4 can also be arranged in the grooves to make the carrier plate move more smoothly and stably.

[0035] Specifically, the lifting mechanism 22 is a fixed hydraulic lift. In this embodiment, the lifting mechanism includes an X-shaped bracket, a telescopic cylinder 221 for driving the X-shaped bracket to prop up, and a base fixed on the ground. The X-shaped bracket is connected to the base frame 21 and the base, and the folding of the X-shaped bracket is completed by the telescopic cylinder 221, thereby realizing the lifting of the base frame 21.

[0036] Two groups of conveyor lines are arranged horizontally inside the oven 3, and each group of conveyor lines includes two conveyor lines arranged vertically; the inlet side and the outlet side of each conveyor line inside the oven are respectively provided with a door body and a driving device (not shown in the figure) for driving the door body to move up and down; a feeder is arranged corresponding to each group of conveyor lines, and a conveyor line is arranged corresponding to the inlet side of each feeder. In this embodiment, the conveyor line 31 located inside the oven 3 is consistent with the conveyor line 1 located on the inlet side of the feeder 2, and both are equipped with a chain conveyor 11, a third stroke switch 13 and a blocking cylinder 12. The bathtub curing production line is provided with two feeders 2, and two conveyor lines 1 are arranged corresponding to the inlet end of the feeder 2 to convey the bathtub to the feeder 2; and a total of four conveyor lines 31 are arranged inside the oven 3, which are divided into two groups, and each group of conveyor lines includes two conveyor lines 31 arranged vertically and parallelly, and the conveyor line 31 located above is stably supported by a bracket 34. The outlet end of the loader 2 corresponds to the inlet end of each group of conveyor lines, so that the loader can deliver bathtubs to each group of conveyor lines. Specifically, the door body is made of transparent glass. In addition, a door body is set corresponding to each conveyor line 31 inside the oven 3, wherein a door body 32 is set for the upper conveyor line, and a door body 33 is set for the lower conveyor line. The door bodies 32 and 33 can slide up and down relative to the oven, and the oven 3 is provided with a slide rail slidably connected to the door body. By setting the slide rail, the door body is limited so that the door body can only move up and down along the slide rail. In this embodiment, Figure 6 As shown, the driving device includes a telescopic cylinder, a sprocket and a chain. The two ends of the chain 35 are respectively fixed to the top two sides of the door body 32, and then a telescopic cylinder 38 is set. The piston rod of the telescopic cylinder 38 is fixedly connected to a movable sprocket 37, and the chain 35 is meshed and connected with the movable sprocket 37. At the same time, a rotatable fixed sprocket 36 is fixed to the oven 3, and the chain 35 is meshed and connected with the fixed sprocket 36. When the door body 32 needs to be opened, the telescopic cylinder 38 works, the piston rod of the telescopic cylinder 38 retracts, drives the movable sprocket 37 to move downward, and the movable sprocket 38 drags the chain 35 to move. The chain 35 exerts a pulling force on the door body 32 so that the door body 32 can move upward; conversely, the telescopic cylinder 38 drives the movable sprocket 37 to move upward, and the door body 32 moves downward due to its own gravity. In addition, the connection relationship between the door body 33 and the driving device is also the same. Of course, telescopic cylinders can also be used to be fixedly connected to both sides of each door body, and the opening and closing of each door body can be individually controlled by the operation of the telescopic cylinders.

[0037] The control device is electrically connected to the first travel switch, the second travel switch, the third travel switch, the blocking cylinder, the lifting mechanism, the belt conveying mechanism and the driving device respectively.

[0038] The control device can be but is not limited to a PLC controller, which is used to receive trigger signals from the first travel switch 28, the second travel switch 27, and the third travel switch 13, and can control the working state of the blocking cylinder 12, the lifting mechanism 22, the driving mechanism 29 of the belt conveyor mechanism, and the driving device.

[0039] A conveyor line 1 for conveying bathtubs is provided at the inlet end of each of the two loading machines 2. The chain conveyor 11, the third travel switch 13 and the blocking cylinder 12 of the conveyor line 1, as well as the driving mechanism 29, the lifting mechanism 22, the first travel switch 28 and the second travel switch 27 of the loading machine 2 are all electrically connected to the control device, and the control device can control the working state of the conveyor line 1 and the loading machine 2. In addition, a group of conveyor lines 31 located inside the oven 3 are provided at the outlet end of each of the two loading machines.

[0040] After the conveyor line 1 at the inlet end of the feeder 2 conveys the carrier plate 4 with the bathtub cylinder body to the feeder 2, the cylinder body continues to be conveyed under the operation of the conveyor belt 26; when the front end of the carrier plate 4 carrying the cylinder body touches the roller of the first stroke switch 28, the first stroke switch 28 will send a trigger signal to the control device, and the control device will send a signal to stop conveying to the conveyor line 1 at the inlet side of the feeder 2, so that the conveyor line 1 stops conveying the cylinder body to the feeder 2 to avoid collision and breakage between the cylinder bodies on the feeder. At this moment, the blocking cylinder 12 plays the role of stopping the carrier plate, and the carrier plate 4 moves along the conveying direction under the operation of the chain conveyor 11 until the trapezoidal opening 41 of the carrier plate 4 contacts the stop rod of the blocking cylinder 12, and the carrier plate stops moving forward. Before the carrier plate 4 contacts the blocking cylinder 12, it will collide with the roller of the third stroke switch 13 arranged on the rear side of the blocking cylinder 12. The third stroke switch 13 sends a signal to the control device to indicate that the carrier plate has moved to the current position. Since the blocking cylinder does not move, the carrier plate stops at the current position. Then the control device controls the working state of the blocking cylinder on the rear side to prevent the chain conveyor 11 from conveying more carrier plates to the current position, so that the cylinder bodies on the carrier plates collide with each other, and the cylinder bodies are conveyed in an orderly manner. When the feeder 2 sends a feeding signal to the control device, the control device controls the blocking cylinder 12 to release the carrier plate and allow the carrier plate to move toward the feeder. After release, the blocking cylinder 12 and the third stroke switch 13 are automatically reset. After receiving the signal, the control device controls the blocking cylinder on the rear side to release the carrier plate, so that the chain conveyor 11 continues to convey the carrier plate 4. Since a plurality of third travel switches 13 and blocking cylinders 12 are provided on the conveying line 1, the third travel switches 13 cooperate with the blocking cylinders 12 to realize orderly conveyance of the cylinders, and prevent damage to the cylinders caused by collisions between the cylinders.

[0041] When the carrier moves from the conveyor line 1 to the loader 2, under the operation of the conveyor belt 26, the carrier continues to move forward after touching the first stroke switch 28 until it touches the second stroke switch 27; at this moment, the control device receives the trigger signals of the first stroke switch 28 and the second stroke switch 27 respectively, and the control device controls the driving mechanism 29 to stop running, so that the conveyor belt 26 stops conveying, so that the cylinder body stays on the loader 2, waiting for the oven 3 to send a feeding signal to the control device; at the same time, the blocking cylinder 12 closest to the loader 2 can be controlled to work, so that the blocking cylinder continues to stop the carrier, and the conveyor line 1 is suspended from continuing to convey the cylinder body to the loader 2 until the cylinder body on the loader 2 is delivered to the oven.

[0042] In this embodiment, the contact surface between the conveyor belt 26 and the carrier plate 4 is rough, and a plurality of protrusions are provided on the outer side of the conveyor belt 26 to increase the friction between the conveyor belt and the carrier plate so that the carrier plate will not slip during transportation, thereby avoiding the driving mechanism from doing too much useless work and increasing energy consumption.

[0043] Since the space in the curing production line is limited, the number of bathtubs that can be accommodated is limited. In this embodiment, each group of conveyor lines 31 inside the oven 3 is arranged into an upper and lower working area (that is, two conveyor lines arranged in parallel up and down), turning the bathtub curing production line into a four-channel heating and curing line.

[0044] The control device controls the working state of the lifting mechanism 22 of the feeder 2 according to the feeding signals sent by the upper working area and the lower working area in the oven. If the upper working area of ​​the oven sends a feeding signal to the control device, the lifting mechanism 22 of the feeder 2 corresponding to the upper working area is activated, and the lifting mechanism 22 will lift the bottom frame 21. Then, the control device controls the driving mechanism 29 to work and transport the cylinder body to the upper working area of ​​the oven through the conveyor belt 26. After completion, the first stroke switch 28 and the second stroke switch 27 will be reset. Then, the lifting mechanism 22 lowers the bottom frame 21. After the control device receives the signal that the lifting mechanism has completed the lowering of the bottom frame, the control device controls the conveyor line 1 to continue to transport the cylinder body to the feeder 2. Similarly, if the lower working area of ​​the oven sends a feeding signal to the control device, the control device controls the driving mechanism 29 of the feeder 2 corresponding to the lower working area to work and transport the cylinder body to the lower working area of ​​the oven through the conveyor belt 26. After completion, the first stroke switch 28 and the second stroke switch 27 will be reset. Subsequently, the control device controls the conveyor line 1 to continue conveying the cylinder body to the loader 2 .

[0045] A liftable discharge conveying mechanism can be provided at the outlet side of the conveying line 31 provided inside the oven, and the structure of the discharge conveying mechanism is the same as that of the feeder, and the structure and working principle of the conveying line 31 are basically the same as those of the conveying line 1, and it is also provided with a blocking cylinder 12 and a third travel switch 13. When the blocking cylinder closest to the feeder in the oven releases the carrier, it indicates that the working position is in an empty state, and then after the control device receives the blocking cylinder signal (i.e., the feeding signal), the control device controls the driving device to work accordingly, and allows the driving device to open the corresponding door body, so that the feeder can transport the cylinder body to the empty working position.

[0046] The present invention not only sets two groups of conveyor lines 31 inside the oven, but also sets corresponding loaders to convey cylinder bodies to each conveyor line 31 located in the oven, thereby improving space utilization and increasing the curing processing capacity of the oven; and through the coordinated work of the first stroke switch, the second stroke switch, the third stroke switch and the blocking cylinder, the position of the cylinder body is intelligently and orderly controlled to avoid collision between the cylinder bodies, thereby realizing automatic conveying of the cylinder body and reducing manpower input.

[0047] In summary, the present invention provides a bathtub curing production line, which has the advantages of space saving, high efficiency, and high intelligent automation. Compared with the prior art, the present invention is provided with four conveyor lines in the oven, which greatly increases the processing capacity of the oven and improves the space utilization rate; two loading machines are arranged outside the oven, and the lifting of the loading machines is realized by a lifting mechanism, so as to convey the bathtub to the conveyor line located at the upper part of the oven; a first stroke switch, a second stroke switch, a third stroke switch and a blocking cylinder are arranged, so that the bathtub can be conveyed to the loading machine in an orderly manner, so that the loading machine can convey the bathtub to the four conveyor lines inside the oven according to the working conditions of the oven, and can avoid the bathtub from colliding with the conveyor line and the loading machine and causing damage, which shows that the intelligent automation level is high.

[0048] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the claims attached to the present invention.

Claims

1. A bathtub curing production line, comprising an oven, characterized in that: Also included are a control device, a loader, a conveyor line, and a carrier plate for carrying the bathtub and movable on the conveyor line and the loader; The loading machine includes a base frame, a lifting mechanism fixed to the bottom of the base frame, two belt conveying mechanisms arranged on both sides of the base frame, and a first travel switch and a second travel switch arranged between the two belt conveying mechanisms and fixed to the base frame along the conveying direction of the belt conveying mechanisms; The conveying line includes a chain conveyor, a plurality of third stroke switches, and a plurality of blocking cylinders; the plurality of blocking cylinders are sequentially arranged along the conveying direction of the chain conveyor, and the third stroke switch is correspondingly arranged at the rear side of the blocking cylinder; The front end of the carrier plate is provided with a trapezoidal opening connected to the shift rod of the blocking cylinder; Two groups of conveyor lines are horizontally arranged inside the oven, and each group of conveyor lines includes two conveyor lines arranged vertically; the oven is provided with a door body and a driving device for driving the door body to move up and down on the inlet side and the outlet side corresponding to each conveyor line inside the oven; one feeder is arranged corresponding to each group of conveyor lines, and one conveyor line is arranged corresponding to the inlet side of each feeder; The control device is electrically connected to the first travel switch, the second travel switch, the third travel switch, the blocking cylinder, the lifting mechanism, the belt conveying mechanism, and the driving device respectively; The outer sides of the base frame and the chain conveyor are respectively provided with protective plates, the distance between the two protective plates is greater than or equal to the width of the carrier plate, the top surface of the protective plates is higher than the top surface of the carrier plate, the carrier plate is a square plate, and the belt conveying mechanism includes a driving shaft and a driven shaft rotatably arranged on the base frame, a conveying belt for conveying the carrier plate, and a driving mechanism for driving the driving shaft to rotate; pulleys are respectively fixed at both ends of the driving shaft and the driven shaft, and the conveying belt is wound around the pulleys of the driving shaft and the driven shaft; the base frame is provided with a plurality of supporting rollers that are rotatable and abut against the inner side surface of the conveying belt, the inner side surface of the protective plate is provided with a groove that is slidably connected to the carrier plate, and a guide wheel that is rotatable and connected to the outer side surface of the carrier plate is provided in the groove.

2. The bathtub curing production line according to claim 1, characterized in that: The driving mechanism is a motor, which is fixed to the base frame. The driving shaft is fixed with a transmission wheel, the output shaft of the motor is fixed with a driving wheel, and a chain is meshed and connected between the driving wheel and the transmission wheel.

3. The bathtub curing production line according to claim 1, characterized in that: The lifting mechanism is a fixed hydraulic lift.

4. The bathtub curing production line according to claim 1, characterized in that: The door body is made of transparent glass.

5. The bathtub curing production line according to claim 1, characterized in that: The oven is provided with a slide rail which is slidably connected with the door body.

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