A cover plate turning device and a production line applying the same

Abstract

The application discloses a cover plate turning device and a production line applying the same. The cover plate turning device comprises a blocking unit and a receiving unit. The receiving unit is located below the blocking unit and is obliquely arranged. The receiving unit has a first end and a second end, and the first end is higher than the second end. In use, the cover plate is placed above the blocking unit by manual or mechanical hand. When the weights of the cover plates on both sides of the blocking unit are not completely equal, the cover plate will fall under the action of gravity. Since the receiving unit is obliquely arranged and the first end is the highest position, the first side of the cover plate will slowly slide to the second end until the first side of the cover plate slides to the second end. At this time, the other side corresponding to the first side is located at the second end, and the turning of the cover plate is completed. Therefore, the cover plate turning device provided by the application realizes automatic turning by the cooperation of the blocking unit and the receiving unit and the self weight of the cover plate, reduces the labor intensity of employees, and improves the production efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of cover plate turnover, and relates to a cover plate turnover device and a production line using the same. Background Art

[0002] An air conditioner, or air conditioner, regulates the temperature and humidity within a space to meet human comfort requirements. A common type of air conditioner is a split-type unit, consisting of an indoor unit and an outdoor unit, installed indoors and outdoors, respectively, connected by pipes and wires.

[0003] The cover of the air-conditioning outdoor unit has the function of protecting the outdoor unit. The process flow of the cover is an important link in the air-conditioning manufacturing process. The correct process flow can ensure the working efficiency, durability and appearance quality of the outdoor unit. In the process of making the cover, after the cover is continuously stamped and formed on the punch press, the punch press robot takes the material and places it on the conveyor belt. Due to the requirements of palletizing, the cover put down by the robot needs to be turned over before palletizing. The traditional flipping method is to have the operator flip it over, which leads to low manufacturing efficiency of the outdoor unit cover. Summary of the Invention

[0004] In view of this, the present invention provides a cover plate flipping device and a production line using the same, which solves the problem of low cover plate manufacturing efficiency caused by flipping the cover plates by manual operation.

[0005] In order to solve the above problems, according to one aspect of the present application, an embodiment of the present invention provides a cover flipping device, which is used to flip the cover. The cover flipping device includes a blocking unit and a receiving unit. The receiving unit is located below the blocking unit, and the receiving unit is inclined. The receiving unit has a first end and a second end, and the first end is higher than the second end; the cover rotates after passing through the blocking unit so that the first edge of the cover falls on the first end, and the first edge slides to the second end under the action of the inclined receiving unit to realize the flipping of the cover.

[0006] In some embodiments, the blocking unit includes a first fixing member, a second fixing member and a blocking shaft. The first fixing member and the second fixing member are arranged opposite to each other. The blocking shaft is located between the first fixing member and the second fixing member, and one end of the blocking shaft is connected to the first fixing member and the other end is connected to the second fixing member. The cover plate can rotate after passing through the blocking shaft.

[0007] In some embodiments, the receiving unit includes a third fixing member, a fourth fixing member and a slide. The third fixing member and the fourth fixing member are arranged opposite to each other. The slide is located between the third fixing member and the fourth fixing member, and one end of the slide is connected to the third fixing member and the other end is connected to the fourth fixing member. The slide is arranged at an angle.

[0008] In some embodiments, the first fixing member and the second fixing member are horizontally arranged rod-shaped structures, and the third fixing member and the fourth fixing member are vertically arranged rod-shaped structures; and the first fixing member is connected to the third fixing member, and the second fixing member is connected to the fourth fixing member.

[0009] According to another aspect of the present application, an embodiment of the present invention provides a cover plate production line, which includes the above-mentioned cover plate turning device.

[0010] In some embodiments, the cover plate production line further includes a conveyor belt connected to the second end of the receiving unit, and the conveyor belt is capable of receiving the cover plate sliding down through the second end.

[0011] In some embodiments, the cover production line further includes a pallet truck located at the end of the conveyor belt.

[0012] In some embodiments, the cover sheet production line further includes a gripping unit capable of placing the cover sheet on the blocking unit.

[0013] In some embodiments, the cover plate production line also includes a sampling conveyor belt and a controller, the input end of the controller can receive sampling instructions, the output end of the controller is connected to the grabbing unit, and the output end can control the grabbing unit to move the current cover plate to the sampling conveyor belt.

[0014] In some embodiments, the grasping unit is a robotic arm.

[0015] In some embodiments, the cover plate is a top plate of an outdoor unit of the air conditioner.

[0016] Compared with the prior art, the cover flipping device of the present invention has at least the following beneficial effects:

[0017] The cover flipping device provided by the present invention is used to flip the cover, and the cover flipping device includes a blocking unit and a receiving unit. The receiving unit is located below the blocking unit, and the receiving unit is inclined. The receiving unit has a first end and a second end, and the first end is higher than the second end; the cover rotates after passing through the blocking unit so that the first edge of the cover falls on the first end, and the first edge slides to the second end under the action of the inclined receiving unit, thereby realizing the flipping of the cover.

[0018] During specific use, the cover is placed above the blocking unit manually or by an intelligent device such as a manipulator. When the weight of the cover on both sides of the blocking unit is not completely equal, the cover will fall under the action of gravity. Of course, in order to match the receiving unit below the blocking unit, when placing the cover, most of the cover is placed above the first end. Then, the first side of the cover will rotate toward the first end under the action of gravity and the blocking unit. Since the receiving unit is tilted, the first end is at the highest position, and the first side of the cover will slowly slide toward the second end until the first side of the cover slides to the second end. At this time, the other side corresponding to the first side is located at the second end, and the cover is flipped over. Therefore, the cover flipping device provided by the present invention realizes automatic flipping by relying on the cover's own gravity through the cooperation of the blocking unit and the receiving unit, thereby reducing the labor intensity of employees and improving production efficiency.

[0019] The cover plate production line provided by the present invention is designed based on the above-mentioned cover plate turning device. Its beneficial effects can be found in the beneficial effects of the above-mentioned cover plate turning device, which will not be described in detail here.

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 1 is a schematic structural diagram of a cover flipping device provided by an embodiment of the present invention;

[0023] Figure 2 This is a structural diagram of a cover plate production line provided by an embodiment of the present invention;

[0024] Figure 3 yes Figure 2 A partial enlarged view of point A in the middle;

[0025] Figure 4 is another structural schematic diagram of a cover plate production line provided by an embodiment of the present invention;

[0026] Figure 5 is another structural schematic diagram of a cover plate production line provided by an embodiment of the present invention;

[0027] Figure 6is another structural schematic view of a cover plate production line provided by an embodiment of the present application;

[0028] Figure 7 is a connection diagram of a controller in a cover plate production line provided by an embodiment of the present application.

[0029] wherein:

[0030] 1. a cover plate;

[0031] 2. a blocking unit; 21, a first fixing member; 22, a second fixing member; 23, a blocking shaft;

[0032] 3. a receiving unit; 31, a third fixing member; 32, a fourth fixing member; 33, a sliding plate; 331, a first end; 332, a second end;

[0033] 4. a conveying belt; 41, a conveying support; 42, a first blocking unit; 43, a second blocking unit;

[0034] 5. a stacking trolley; 51, a wheel;

[0035] 6. a grabbing unit;

[0036] 7. an inspection conveying belt; 71, an inspection support;

[0037] 8. a controller;

[0038] 9. an operator. DETAILED DESCRIPTION

[0039] In order to further clarify the technical means and effects taken by the present application to achieve the predetermined purposes, the following describes the specific embodiments, structures, features and effects of the present application in detail in combination with the drawings and preferred embodiments. In the following description, different "an embodiment" or "embodiments" do not necessarily refer to the same embodiment. In addition, the specific features, structures or characteristics in one or more embodiments can be combined in any suitable form.

[0040] In the description of the present application, it should be clear that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence; the terms "vertical", "horizontal", "longitudinal", "front", "back", "left", "right", "up", "down", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not mean that the device or element referred to must have a specific orientation or position, and therefore cannot be understood as a limitation on the present application.

[0041] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0042] Example 1

[0043] This embodiment provides a cover flipping device, such as Figure 1 As shown, the cover plate flipping device is used to flip the cover plate 1, and the cover plate flipping device includes a blocking unit 2 and a receiving unit 3, the receiving unit 3 is located below the blocking unit 2, the receiving unit 3 is tilted, and the receiving unit 3 has a first end 331 and a second end 332, and the first end 331 is higher than the second end 332; the cover plate 1 is rotated after passing through the blocking unit 2 so that the first edge of the cover plate 1 falls on the first end 331, and the first edge slides to the second end 332 under the action of the tilted receiving unit 3, thereby realizing the flipping of the cover plate 1.

[0044] Specifically, the cover of the air conditioner outdoor unit, that is, the top cover of the air conditioner outdoor unit, has the function of protecting the outdoor unit. The process of the cover is an important link in the air conditioner manufacturing process. The correct process can ensure the working efficiency, durability and appearance quality of the outdoor unit. The manufacturing process of the cover is generally as follows:

[0045] The first step is to make a thin plate:

[0046] Select suitable thin plate materials, generally galvanized steel or aluminum alloy plates, and cut the thin plates to specifications. The cut thin plates need to remove burrs and corners to ensure the flatness of the plate surface.

[0047] The second step is stamping and bending;

[0048] The thin plate cut to specifications is placed in an electronic punching machine for punching to punch out the outline, and then bent and folded to form the top cover of the external unit.

[0049] The third step is coding:

[0050] The coding is done on the top cover of the external machine, usually to identify the product model, production date, brand and other information.

[0051] Step 4: spraying:

[0052] The outer machine top cover that has been punched and bent is sprayed; first, surface treatment is performed to remove oil and oxides, then primer is sprayed on the surface, and after the primer is dried, topcoat is sprayed. The color, thickness, and type of layer of the spray need to be determined according to product requirements and relevant standards.

[0053] Fifth step, packaging and delivery:

[0054] The sprayed outer machine top cover is inspected for quality and performance to see if it meets product standards, then it is packaged into a complete product and prepared for delivery.

[0055] After the second step is completed, the top cover needs to be turned over and stacked. In order to better achieve the turning over, in this embodiment, the cover plate 1 is placed on the blocking unit 2 by manual or intelligent equipment such as a robot, when the weights of the cover plates 1 on both sides of the blocking unit 2 are not completely equal, the cover plate 1 will fall under the action of gravity. Of course, in order to match the receiving unit 3 below the blocking unit 2, when placing the cover plate 1, most of the cover plate 1 is placed above the first end 331, then the first side of the cover plate 1 will rotate to the first end 331 under the action of gravity and the blocking unit 2, and because the receiving unit 3 is inclined, the first end 331 is the highest position, so the first side of the cover plate 1 will slowly slide to the second end 332, until the first side of the cover plate 1 slides to the second end 332, at this time the other side corresponding to the first side is located at the second end, thus completing the turning over of the cover plate 1.

[0056] Therefore, the cover plate turning over device provided in this embodiment realizes automatic turning over by the cooperation of the blocking unit 2 and the receiving unit 3 and the self-gravity of the cover plate 1, reduces the labor intensity of employees, and improves the production efficiency.

[0057] In specific embodiments, as shown in Figure 1 the blocking unit 2 includes a first fixing member 21, a second fixing member 22, and a blocking shaft 23, the first fixing member 21 and the second fixing member 22 are oppositely arranged, the blocking shaft 23 is located between the first fixing member 21 and the second fixing member 22, one end of the blocking shaft 23 is connected with the first fixing member 21, and the other end of the blocking shaft 23 is connected with the second fixing member 22; the cover plate 1 can rotate after passing through the blocking shaft 23.

[0058] Specifically, the first fixing member 21 and the second fixing member 22 are aluminum profiles; the first fixing member 21 has a first recess on the side facing the second fixing member 22, and one end of the blocking shaft is arranged in the first recess; the second fixing member 22 has a second recess on the side facing the first fixing member 21, and the other end of the blocking shaft is arranged in the second recess.

[0059] In this embodiment, for better description, the two surfaces of the cover plate 1 are referred to as the first surface and the second surface. In the specific use process, the cover plate 1 is first placed on the stop shaft 23 by manual or intelligent equipment such as a robot, at this time, the first surface faces downward, that is, the first surface is partially in contact with the stop shaft 23, and it is ensured that the stop shaft 23 is not on the center line of the cover plate 1. At the same time, it is necessary to ensure that the left side of the stop shaft 23 ( Figure 1 In the embodiment of the present invention, the first and second sides of the cover plate 1 are respectively a first side and a second side, wherein the first side is the side on the same side as the first end 331 and the second side is the side on the same side as the second end 332; then, under the action of the gravity of the cover plate 1 and the action of the stop shaft 23, since there are more cover plates 1 on the left side of the stop shaft 23, the first side of the cover plate 1 tilts downward, and when the first side of the cover plate 1 contacts the second end 332, it will slide toward the second end 332 along the inclined receiving unit 3, and at this time, the second side of the cover plate 1 is still blocked by the stop shaft 23. When the cover plate 1 slides to a certain extent, the first side falls toward the first end 331, and the second side is located at the second end 332. At this time, the second side is facing down, and the cover plate 1 is flipped over.

[0060] In a specific embodiment, Figure 1 As shown, the receiving unit 3 includes a third fixing member 31, a fourth fixing member 32 and a slide 33. The third fixing member 31 and the fourth fixing member 32 are arranged opposite to each other. The slide 33 is located between the third fixing member 31 and the fourth fixing member 32, and one end of the slide 33 is connected to the third fixing member 31 and the other end is connected to the fourth fixing member 32; the slide 33 is arranged at an angle.

[0061] Specifically, the third fixing member 31 has a general outline of a column with a third groove on one side, and the fourth fixing member 31 has a general outline of a column with a fourth groove on one side. One side of the slide 33 is connected to the third groove, and the other side of the slide 33 is connected to the fourth groove.

[0062] During the specific implementation process, when the cover plate 1 is placed above the stop shaft 23, the cover plate 1 is under the action of gravity and the stop shaft 23. Since there are more cover plates 1 on the left side of the stop shaft 23, the first side of the cover plate 1 tilts downward. When the first side of the cover plate 1 contacts the second end 332, it will slide along the inclined slide 33 toward the second end 332. At this time, the second side of the cover plate 1 is still blocked by the stop shaft 23. When the cover plate 1 slides to a certain extent, the first side falls toward the first end 331. At this time, the second side is located at the second end 332. At this time, the second side is facing down, and the cover plate 1 is flipped over.

[0063] As can be seen from the above, in order to better achieve flipping, the distance between the blocking shaft 23 and the slide 33 below it cannot be less than the distance between the first side and the second side to avoid flipping failure.

[0064] In a specific embodiment, the first fixing member 21 and the second fixing member 22 are horizontally arranged rod-shaped structures, and the third fixing member 31 and the fourth fixing member 32 are vertically arranged rod-shaped structures; and the first fixing member 21 is connected to the third fixing member 31, and the second fixing member 22 is connected to the fourth fixing member 32.

[0065] That is to say, after the third fixing member 31 is placed vertically, one side of its top is connected to one end of the horizontally arranged first fixing member 21, and after the fourth fixing member 31 is placed vertically, one side of its top is connected to one end of the horizontally arranged second fixing member 22; the first fixing member 21 and the second fixing member 22 are arranged in parallel, the third fixing member 31 and the fourth fixing member 32 are arranged in parallel, and the first fixing member 21 and the third fixing member 31 are arranged perpendicularly, and the second fixing member 22 and the fourth fixing member 32 are arranged perpendicularly.

[0066] The specific working process of the cover plate turning device provided in this embodiment is as follows:

[0067] First, manually or by a robot, place the cover plate 1 on the stop shaft 23. Note that the stop shaft 23 cannot be located on the center line of the cover plate 1.

[0068] Afterwards, the cover plate 1 flips over under the action of its own weight and the blocking shaft 23, and the first side of the cover plate 1 tilts downward and contacts the second end 332;

[0069] Afterwards, the cover plate 1 slides along the inclined slide 33 toward the second end 332. When the cover plate 1 slides to a certain extent, the first side falls toward the first end 331. At this time, the second side is located at the second end 332, and the cover plate 1 is turned over.

[0070] The cover flipping device provided in this embodiment realizes automatic flipping of the cover 1 by relying on its own gravity through the cooperation of the blocking unit 2 and the receiving unit 3, thereby reducing the labor intensity of employees and improving production efficiency.

[0071] In addition, the cover plate in this embodiment may be the top plate of the outdoor unit of the air conditioner, and of course may also be other plate-like structures that need to be turned over during the manufacturing process or the transfer process.

[0072] Example 2

[0073] This embodiment provides a cover plate production line, such as Figure 1-7 As shown, the cover plate production line includes the cover plate turning device described in Example 1.

[0074] The cover plate production line provided in this embodiment includes the cover plate turning device in Example 1, so it has all the beneficial effects of the cover plate turning shaft in Example 1.

[0075] In a specific embodiment, Figure 4 and Figure 5 As shown, the cover plate production line further includes a conveyor belt 4, which is connected to the second end of the receiving unit 3, and the conveyor belt 4 can receive the cover plate 1 that slides down from the second end.

[0076] In addition, in the specific implementation process, a first blocking unit 42 is provided on one side of the conveyor belt 4, and a second blocking unit 43 is provided on the other side. The gap between the first blocking unit 42 and the second blocking unit 43 is not less than the length or width of the cover plate 1. The setting of the first blocking unit 42 and the second blocking unit 43 can prevent the cover plate 1 from slipping when moving on the conveyor belt 4.

[0077] More specifically, the conveyor belt 4 is fixed by a conveying bracket 41, which is a rectangular structure, and one of its long sides is connected to the second end of the receiving unit 3; in the specific use process, the cover 1 after being turned over by the cover turning device is conveyed to the conveyor belt 4. The area of ​​the conveyor belt 4 is large and multiple cover plates 1 can be placed at the same time. The end of the conveyor belt 4 is the collection point of the cover plates 1, where the cover plates can be stacked and collected, or they can enter the next process.

[0078] In a specific embodiment, Figure 6 As shown, the cover plate production line further comprises a pallet truck 5, which is located at the end of the conveyor belt 4. In addition, the bottom of the pallet truck 5 has a plurality of wheels 51 for moving the pallet truck 5, and the wheels 51 include fixed wheels and universal wheels.

[0079] More specifically, the palletizer 5 is a cubic structure with a storage space, which can receive the cover plate 1 transported by the conveyor belt 4. After the cover plate 1 is turned over by the cover plate turning device, it is directly palletized on the palletizer 5 through the conveyor belt 4, realizing automatic palletizing and further reducing labor costs.

[0080] In a specific embodiment, Figure 6 As shown, the cover plate production line further includes a grabbing unit 6, which can place the cover plate 1 on the blocking unit 2. The grabbing unit 6 is a robot.

[0081] In a specific embodiment, Figure 4 and Figure 7As shown, the cover plate production line also includes a sampling conveyor belt 7 and a controller 8. The input end of the controller 8 can receive a sampling instruction, the output end of the controller 8 is connected to the grabbing unit 6, and the output end can control the grabbing unit 6 to move the current cover plate 1 to the sampling conveyor belt 7.

[0082] On the one hand, the grabbing unit 6 can stack the cover plate 1 after it has been turned over and transported via the conveyor belt 4 at the pallet truck 5 without the need for manual stacking; on the other hand, the grabbing unit 6 can place the grabbed cover plate 1 on the sampling conveyor belt 7 for quality inspection.

[0083] The sampling conveyor belt 7 is fixed by a sampling bracket 71 .

[0084] Specifically, the cover plate production line provided in this embodiment has an operation button. When quality sampling is required, the operator 9 presses the operation button, and the controller 8 receives the signal and transmits the signal to the grabbing unit 6. After receiving the signal, the grabbing unit 6 moves the current cover plate 1 to the sampling conveyor belt 7. At this time, the staff next to the sampling conveyor belt 7 performs quality inspection on the cover plate 1.

[0085] When it is necessary to check the product quality, press the operation button on the equipment cabinet. After receiving the signal, the grabbing unit 6 puts the cover 1 currently on the conveyor belt 4 onto the inspection conveyor belt 7, and the operator 9 performs quality inspection.

[0086] This embodiment is designed to automatically flip the cover 1 during the falling process, and combined with the electrical control logic, it can achieve the goal of random inspection at any time as needed; reduce employee labor intensity and improve production efficiency; shorten the turnover process and reduce product quality risks.

[0087] In a specific embodiment, the cover plate 1 may be a top plate of an outdoor unit of an air conditioner, and of course may also be other plate-like structures that need to be turned over during the manufacturing process or the transfer process.

[0088] In order to achieve a compact structure, the layout of the cover plate production line provided in this embodiment is as follows:

[0089] The general outlines of the sampling conveyor belt 7 and the conveyor belt 4 are both rectangular structures; the layout is centered on the grabbing unit 6, and the grabbing unit 6 has four faces, corresponding to four spaces respectively. It is assumed that the four spaces are the first space, the second space, the third space and the fourth space; the first space and the third space are two spaces set opposite to each other, and the second space and the fourth space are two spaces set opposite to each other; wherein, the sampling conveyor belt 7 is located in the first space, and is arranged along the length direction, with two short sides located at both ends respectively, one of the short sides is the space for the quality inspector to stand, and the other short side is in contact with the long side of the conveyor belt 4 located in the second space, and one short side of the conveyor belt 4 is in contact with the pallet truck 5 located in the third space; in addition, the third fixing part 31 and the fourth fixing part 32 are located between the sampling conveyor belt 7 and the conveyor belt 4. At the same time, the first fixing part 21 and the second fixing part 22 on the top of the third fixing part 31 and the fourth fixing part 32 extend toward the conveyor belt 4.

[0090] The workflow of the cover plate production line provided in this embodiment is as follows:

[0091] After the cover plate 1 is picked up by the punching machine manipulator, it moves to the top of the blocking shaft 23. Then the suction cup of the punching machine manipulator is released and the cover plate 1 falls automatically.

[0092] When the cover plate 1 falls, it hits the stop shaft 23 and is rotated by the force, falls on the slide plate 33 below, and turns over at the same time;

[0093] The turned cover plate 1 is transported to the pallet truck 5 via the conveyor belt 4 for automatic palletizing or palletizing by the grabbing unit 6;

[0094] During the normal palletizing process, when the controller 8 receives a request for quality inspection, the grabbing unit 6 places the grabbed cover 1 on the inspection conveyor belt 7 for quality inspection by the operator 9 .

[0095] The cover plate production line provided in this embodiment utilizes a stop shaft and a slide plate to realize the automatic turning over function of the cover plates, and has a simple and stable structure. At the same time, it utilizes a grabbing unit to realize the automatic stacking function, thereby reducing labor costs. It utilizes two conveyor belts (conveyor belt 4 and sampling conveyor belt 7) to realize the automatic stacking and random inspection functions at any time, thereby reducing the labor intensity of employees and reducing product quality risks.

[0096] In summary, it is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous technical features can be freely combined and superimposed.

[0097] The above are merely preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A cover flipping device, characterized in that: The cover plate turning device is used to turn the cover plate over, and the cover plate turning device includes a blocking unit and a receiving unit, the receiving unit is located below the blocking unit, the receiving unit is inclined, the receiving unit has a first end and a second end, and the first end is higher than the second end; after passing the blocking unit, the cover plate rotates so that the first edge of the cover plate falls on the first end, and the first edge slides to the second end under the action of the inclined receiving unit, thereby realizing the turning of the cover plate; The blocking unit includes a first fixing member, a second fixing member, and a blocking shaft. The first fixing member and the second fixing member are arranged opposite to each other. The blocking shaft is located between the first fixing member and the second fixing member, and one end of the blocking shaft is connected to the first fixing member and the other end is connected to the second fixing member. The cover plate can rotate after passing through the blocking shaft. The receiving unit includes a third fixing member, a fourth fixing member and a slide. The third fixing member and the fourth fixing member are arranged opposite to each other. The slide is located between the third fixing member and the fourth fixing member, and one end of the slide is connected to the third fixing member and the other end is connected to the fourth fixing member. The slide is arranged at an angle.

2. The cover turning device according to claim 1, characterized in that: The first fixing member and the second fixing member are horizontally arranged rod-shaped structures, and the third fixing member and the fourth fixing member are vertically arranged rod-shaped structures; the first fixing member is connected to the third fixing member, and the second fixing member is connected to the fourth fixing member.

3. A cover production line, characterized in that: The cover plate production line includes the cover plate turning device according to any one of claims 1-2.

4. The cover board production line according to claim 3, characterized in that: The cover plate production line further includes a conveyor belt connected to the second end of the receiving unit, and the conveyor belt is capable of receiving the cover plate that slides down through the second end.

5. The cover board production line according to claim 4, characterized in that: The cover plate production line further comprises a pallet truck, which is located at the end of the conveyor belt.

6. The cover board production line according to any one of claims 3 to 5, characterized in that: The cover plate production line further includes a gripping unit capable of placing the cover plate on the blocking unit.

7. The cover board production line according to claim 6, characterized in that: The cover plate production line also includes a sampling conveyor belt and a controller. The input end of the controller can receive a sampling instruction, the output end of the controller is connected to the grabbing unit, and the output end can control the grabbing unit to move the current cover plate to the sampling conveyor belt.

8. The cover board production line according to claim 6, characterized in that: The grasping unit is a robot arm.

9. The cover board production line according to any one of claims 3 to 5, characterized in that: The cover plate is the top plate of the outdoor unit of the air conditioner.

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