Freezer body flattening and bending device and using method thereof

By designing a flat bending device for the refrigerator cabinet body including a flat side folding mechanism, a transmission mechanism, a bending mechanism and an upward pressing mechanism, the problem of slow efficiency in the flat bending process of the refrigerator cabinet body is solved, and efficient plates are achieved Bending processing.

CN119489136APending Publication Date: 2025-02-21宗海啸
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Patent Information

Application Number
CN202411849113.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-02-21

AI Technical Summary

Technical Problem

The refrigerator cabinet body is slow in the process of flat bending, and it is difficult for the prior art to achieve efficient plate bending processing.

Method used

A flat bending device for the refrigerator cabinet body is designed, including a flat side folding mechanism, a transmission mechanism, a bending mechanism and an upward pressing mechanism. By synchronously controlling multiple pressing rollers and transmission systems, the flattening processing and gradual bending of the plate are realized.

Benefits of technology

The bending and processing efficiency of the plates for freezer cabinet processing is improved, ensuring that the fixed parts on the side ends of the plate do not deform, and the overall processing effect is improved.

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Abstract

The invention discloses a refrigerator body flattening and bending device and a using method thereof, and particularly relates to the technical field of refrigerator body machining, the refrigerator body flattening and bending device comprises a device base, a flattening and side bending mechanism is fixedly mounted in the middle of the top end of the device base, and a conveying mechanism is fixedly mounted on one side of the top end of the device base; a limiting mechanism is arranged on the side, close to the flattening and side folding mechanism, of the top end of the conveying mechanism, a bending mechanism is fixedly installed on the side, away from the conveying mechanism, of the top end of the device base, and an upper pressing mechanism is arranged on the side, close to the flattening and side folding mechanism, of the top end of the bending mechanism. And a protection frame is fixedly mounted on the side, close to the flattening and side bending mechanism, of the top end of the device base. The flattening and side bending mechanism is arranged, a plate is conveyed and subjected to flattening machining, meanwhile, the side end of the plate is synchronously and gradually bent, a fixed part is formed at the side end of the plate, and the bending machining efficiency of the plate for refrigerator cabinet body machining is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of refrigerator cabinet body processing, and in particular to a refrigerator cabinet body flattening and bending device and a use method thereof. Background Art

[0002] The refrigerator body flattening and bending device refers to a device or tool used in the refrigerator manufacturing process to flatten and bend the refrigerator shell sheet. This device usually includes components such as pressure rollers, positioning guide devices, and hydraulic systems. By applying pressure and torque to the sheet, the sheet is bent at a specific angle and shape, thereby forming the refrigerator shell structure.

[0003] When the refrigerator body is flattened and bent, it is usually flattened first, and then the side ends are bent to form a fixed part after the flattening is completed. Finally, the bending part is bent at different angles through a bending mechanism, which is inefficient. Therefore, we propose a refrigerator body flattening and bending device and a method of using it to solve the above problems. Summary of the invention

[0004] The object of the present invention is to provide a refrigerator body flattening and bending device and a method of using the same to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for flattening and bending a refrigerator body, comprising a device base, a flattening side folding mechanism is fixedly installed in the middle of the top of the device base, a transmission mechanism is fixedly installed on one side of the top of the device base, a limiting mechanism is provided on the side of the top of the transmission mechanism close to the flattening side folding mechanism, a bending mechanism is fixedly installed on the side of the top of the device base away from the transmission mechanism, a pressing mechanism is provided on the side of the top of the bending mechanism close to the flattening side folding mechanism, a protective frame is fixedly installed on the side of the top of the device base close to the flattening side folding mechanism, and an observation window is fixedly installed in the middle of the protective frame.

[0006] As a preferred technical solution of the present invention, the flat side folding mechanism includes two symmetrically distributed mechanism side frames, both sides of the bottom ends of the mechanism side frames are provided with translation sliding frames, the translation sliding frames are fixedly installed on the top end of the device base, the top sliding card of the translation sliding frame is provided with two symmetrically distributed translation sliding seats, the top end of the translation sliding seat is fixedly installed with the bottom end of the corresponding mechanism side frame, and the bottom end of the mechanism side frame is provided with two symmetrically distributed translation sliding rails on one side close to the translation sliding frame, the translation sliding rails are fixedly installed on the top end of the device base, and the translation sliding A translation guide seat is slidably installed on the rail, and the translation guide seat is fixedly installed at the bottom end of the corresponding mechanism side frame. The end of the mechanism side frame close to the transmission mechanism is provided with two sets of flat pieces, and the end of the mechanism side frame away from the transmission mechanism is provided with a side folding piece. The flat piece includes two first pressure rollers symmetrically distributed up and down, and both ends of the two first pressure rollers are provided with flat side rollers. The opposite ends of the flat side rollers are fixedly sleeved with limit rings, and the vertical corresponding two limit rings are in contact. The side folding piece includes two second pressure rollers symmetrically distributed up and down, and two symmetrically distributed up and down. a third pressing roller, two fourth pressing rollers symmetrically distributed up and down, and two fifth pressing rollers symmetrically distributed up and down, both ends of the second pressing roller at the bottom position are provided with a first bottom folding roller, both ends of the second pressing roller at the top position are provided with a first top folding roller, a first side folding area is formed between the first bottom folding roller and the first top folding roller, both ends of the third pressing roller at the bottom position are provided with a second bottom folding roller, both ends of the third pressing roller at the top position are provided with a second top folding roller, a second side folding area is formed between the second bottom folding roller and the second top folding roller, the bottom Both ends of the fourth pressing roller at the bottom position are provided with a third bottom folding roller, both ends of the fourth pressing roller at the top position are provided with a third top folding roller, a third side folding area is formed between the third bottom folding roller and the third top folding roller, both ends of the fifth pressing roller at the bottom position are provided with a fourth bottom folding roller, and both ends of the fifth pressing roller at the top position are provided with a fourth top folding roller, a fourth side folding area is formed between the fourth bottom folding roller and the fourth top folding roller, and the angles formed by longitudinal sectioning of the first side folding area, the second side folding area, the third side folding area and the fourth side folding area gradually decrease.

[0007] As a preferred technical solution of the present invention, the opposite ends of the smoothing side roller, the opposite ends of the first bottom side folding roller, the opposite ends of the first top side folding roller, the opposite ends of the second bottom side folding roller, the opposite ends of the second top side folding roller, the opposite ends of the third bottom side folding roller, the opposite ends of the third top side folding roller, the opposite ends of the fourth bottom side folding roller and the opposite ends of the fourth top side folding roller are all fixedly installed with roller shafts, and the roller shafts are rotatably installed on the corresponding mechanism side frames, and the opposite ends of the smoothing side rollers, the opposite ends of the first bottom side folding roller, the opposite ends of the first top side folding roller, the opposite ends of the second bottom side folding roller, the opposite ends of the second top side folding roller, the opposite ends of the third bottom side folding roller, the opposite ends of the third top side folding roller, the opposite ends of the fourth bottom side folding roller and the opposite ends of the fourth top side folding roller are all fixedly installed with fixing shafts, and the fixing shafts are movably clamped at the ends of the corresponding first pressing roller, the second pressing roller, the third pressing roller, the fourth pressing roller and the fifth pressing roller.

[0008] As a preferred technical solution of the present invention, a transmission gear is fixedly installed on the end of the roller shaft, and two of the transmission gears are meshed and connected vertically. A sprocket transmission group is fixedly provided on one end corresponding to multiple roller shafts horizontally. The sprocket transmission group includes multiple sprockets and transmission chains meshed on the outsides of the multiple sprockets. The multiple sprockets are respectively fixedly installed on the ends of the corresponding roller shafts, and a second motor is fixedly installed on the outside of one of the side frames of the mechanism, and the driving end of the second motor and the end of the corresponding roller shaft are fixedly installed.

[0009] As a preferred technical solution of the present invention, double-headed screws are rotatably installed in the translation sliding frames, the translation sliding seats are threadedly installed on the outside of the corresponding double-headed screws, and a pulley transmission group is fixedly provided at one end of the two double-headed screws. The pulley transmission group includes two pulleys and a transmission belt movably sleeved on the outside of the two pulleys, and the two pulleys are respectively fixedly installed on the ends of the corresponding double-headed screws, and a first motor is fixedly installed on one side of one of the translation sliding frames, and the driving end of the first motor and the end of the corresponding double-headed screw are fixedly installed.

[0010] As a preferred technical solution of the present invention, the bending mechanism includes a mounting frame, the mounting frame is fixedly mounted on the top of the device base, a loading base plate is fixedly mounted on the top of the mounting frame, a flip groove is opened in the middle of the loading base plate, a bending base plate is movably clamped in the flip groove, a flip shaft is fixedly mounted on one end of the bending base plate, the flip shaft is rotatably mounted on the loading base plate, a connecting frame is fixedly mounted on one side of the bending base plate, a rotating seat is provided on opposite sides of the middle of the connecting frame, a rotating shaft is fixedly mounted on the two rotating seats, the rotating shaft is rotatably mounted in the middle of the connecting frame, a rotating frame is fixedly mounted on the side of the top of the device base close to the rotating seat, a rotating frame is rotatably mounted on the top of the rotating frame, and an electric telescopic rod is fixedly mounted between the top of the rotating frame and the bottom of the corresponding rotating seat.

[0011] As a preferred technical solution of the present invention, the upper pressure mechanism includes a middle pressure frame, and two symmetrically distributed telescopic pressure frames are vertically installed on both ends of the middle pressure frame, and a side pressure frame is provided on the side of the telescopic pressure frame away from the middle pressure frame, and a positioning long groove is opened at the bottom end of the side pressure frame, and a telescopic pressure frame is vertically installed on the side of the side pressure frame close to the telescopic pressure frame, and the telescopic pressure frame is slidably connected to the bottom side of the corresponding telescopic pressure frame, and a guide shaft is fixedly installed on the side of the side pressure frame close to the middle pressure frame, and a guide pressure frame is fixedly installed on the side of the middle pressure frame close to the side pressure frame, and the guide shaft is slidably connected to the corresponding guide pressure frame, and the upper pressure mechanism is fixedly installed through one end of the two side pressure frames and one end of the corresponding mechanism side frame.

[0012] As a preferred technical solution of the present invention, the transmission mechanism includes two groups of transmission side frames, the transmission side frames are fixedly installed on the top of the device base, and transmission rollers are rotatably installed on the top of the transmission side frames. The outer movable sleeves of the two transmission rollers are provided with transmission belts, and a third motor is fixedly installed on the outer side of one of the transmission side frames, and the driving end of the third motor and the end of one of the transmission rollers are fixedly installed.

[0013] As a preferred technical solution of the present invention, the limiting mechanism includes two symmetrically distributed limiting side plates, one end of the limiting mechanism is fixedly installed with a fixing frame, and the limiting mechanism is fixedly installed through two groups of fixing frames and one end of the corresponding mechanism side frame.

[0014] A method for using a refrigerator cabinet flattening and bending device, comprising the following steps:

[0015] Step 1, adjust the flattening and bending device of the refrigerator body according to the width of the plate, control the first motor to start, cooperate with the transmission of the pulley transmission group to drive the two double-headed screws to rotate synchronously, and then control the corresponding translation slides on both sides and the side frames of the mechanism to move back to back, and install the first pressing roller, the second pressing roller, the third pressing roller, the fourth pressing roller and the fifth pressing roller of appropriate length. At this time, the side end of the plate can contact the limit ring, and the bending part of the side end of the plate corresponds to the positions of the first bottom side folding roller, the first top side folding roller, the second bottom side folding roller, the second top side folding roller, the third bottom side folding roller, the third top side folding roller, the fourth bottom side folding roller and the fourth top side folding roller;

[0016] Among them, when the side frame of the mechanism translates, the two side pressing frames are driven to translate, so that the fixed parts formed by the positioning long groove and the side end of the plate can correspond, and the two limiting side plates are driven to translate, so that the two limiting side plates and the limiting rings correspond to each other, and adapt to plates of different widths;

[0017] Step 2: Place the plate on the upper surface of the conveyor belt, control the third motor to start, drive one of the conveyor rollers to rotate, drive the conveyor belt to transmit, automatically transmit the plate, cooperate with the limit of the limit side plate, and accurately move the plate between the two first pressure rollers;

[0018] At the same time, the second motor is controlled to start, cooperate with the transmission of the sprocket transmission group, and the meshing connection of the two vertically corresponding transmission gears, so as to synchronously drive the two first pressing rollers to rotate in the opposite direction, the two second pressing rollers to rotate in the opposite direction, the two third pressing rollers to rotate in the opposite direction, the two fourth pressing rollers to rotate in the opposite direction, and the two fifth pressing rollers to rotate in the opposite direction;

[0019] Step 3: The plate is moved between the two first pressing rollers, and the side end of the plate contacts the limiting ring to limit the plate. The plate is transported and flattened by the synchronous reverse rotation of the two first pressing rollers and the flattening side rollers;

[0020] Subsequently, the sheet material is gradually moved between the two second rollers, the two third rollers, the two fourth rollers and the two fifth rollers, and the sheet material is continuously conveyed and flattened by the synchronous reverse rotation of the two second rollers, the two third rollers, the two fourth rollers and the two fifth rollers. At the same time, the side end of the sheet material is gradually contacted and extruded by the first bottom folding roller, the first top folding roller, the second bottom folding roller, the second top folding roller, the third bottom folding roller, the third top folding roller, the fourth bottom folding roller and the fourth top folding roller. As the angles formed by the longitudinal sectioning of the first side folding area, the second side folding area, the third side folding area and the fourth side folding area are gradually reduced, the side end of the sheet material is synchronously and gradually bent;

[0021] Step 4: After the sheet is folded sideways, it is continuously transported, and the fixed part is inserted into the positioning long groove for positioning. The sheet is moved under the telescopic pressing frame, the side pressing frame, the telescopic pressing frame and the guide pressing frame until the bending part of the sheet corresponds to the telescopic pressing frame and the telescopic pressing frame at the end position away from the side frame of the mechanism, and the upper surface of the sheet is pressed and positioned;

[0022] Then, the electric telescopic rod is controlled to extend, and the rotating seat and the rotating frame are rotated to drive the bending bottom plate to flip upward, so as to automatically support and turn the plate from the bottom.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. By setting up a flat side folding mechanism, the plate is transmitted and flattened, and the side ends of the plate are synchronously and gradually bent to form a fixed position at the side ends of the plate, thereby improving the bending efficiency of the plate used for processing the refrigerator cabinet.

[0025] 2. By setting up a bending mechanism and using an upper pressing mechanism, the upper surface of the plate is pressed and positioned, which facilitates the upward turning and bending of the bottom plate for bending processing, prevents deformation of the fixed part during subsequent bending of the plate, and further improves the bending effect.

[0026] 3. By setting up a transmission mechanism and using a limiting mechanism in combination, it can adapt to the limiting transmission of the side ends of plates of different widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the structure of the present invention.

[0029] Figure 2 is a schematic diagram of the structural connection of the flat side folding mechanism in the present invention,

[0030] Figure 3 It is a schematic diagram of the partial structural connection of the flat side folding mechanism in the present invention,

[0031] Figure 4 Schematic diagram of the structural connection between the flat part and the side folding part in the present invention,

[0032] Figure 5 It is a schematic diagram of the partial structural connection of the flat part and the side folding part in the present invention,

[0033] Figure 6 is a schematic diagram of the structural connection of the bending mechanism in the present invention,

[0034] Figure 7 This is a schematic diagram of the structural connection of the bending mechanism in the present invention from another angle.

[0035] Figure 8 For the present invention Figure 7 The enlarged view of point A in the middle.

[0036] Fig. 9 It is a structural schematic diagram of the upper pressure mechanism in the present invention,

[0037] Fig.10 For the present invention Fig. 9 The enlarged view of point B in the middle.

[0038] Fig.11 It is a schematic diagram of the structural connection of the transmission mechanism and the limiting mechanism in the present invention.

[0039] In the figure: 1, device base; 2, flat side folding mechanism; 3, transmission mechanism; 4, limiting mechanism; 5, bending mechanism; 6, upper pressure mechanism; 7, protective frame; 71, observation window; 21, mechanism side frame; 22, translation slide frame; 221, translation slide seat; 222, double-headed screw; 223, pulley transmission group; 224, first motor; 23, translation slide rail; 231, translation guide seat; 24, flattening member; 241, first pressure roller; 242, flat side roller; 243, limiting ring; 25, side folding member; 251, second pressure roller; 252, first bottom side folding roller; 253, first top side folding roller; 254, third pressure roller; 255, second bottom side folding roller; 256, second top side folding roller; 257, fourth pressure roller; 258, third bottom side folding roller; 259, third top side Folding roller; 2510, fifth pressure roller; 2511, fourth bottom folding roller; 2512, fourth top folding roller; 26, roller shaft; 261, clamping shaft; 27, transmission gear; 28, sprocket transmission group; 29, second motor; 51, mounting frame; 501, turning groove; 52, material placement bottom plate; 53, bending bottom plate; 531, turning shaft; 54, connecting frame; 55, rotating seat; 551, rotating shaft; 56, rotating frame; 561, rotating frame; 57, electric telescopic rod; 61, middle pressure frame; 62, telescopic pressure frame; 63, side pressure frame; 631, positioning long groove; 64, telescopic pressure frame; 65, guide pressure frame; 651, guide shaft; 31, transmission side frame; 32, transmission roller; 33, transmission belt; 34, third motor; 41, limiting side plate; 42, fixed frame. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Example: Figure 1-11 As shown, the present invention provides a refrigerator cabinet flattening and bending device, including a device base 1, a flattening side folding mechanism 2 is fixedly installed in the middle of the top of the device base 1, a transmission mechanism 3 is fixedly installed on one side of the top of the device base 1, a limiting mechanism 4 is provided on the side of the top of the transmission mechanism 3 close to the flattening side folding mechanism 2, a bending mechanism 5 is fixedly installed on the side of the top of the device base 1 away from the transmission mechanism 3, a pressing mechanism 6 is provided on the side of the top of the bending mechanism 5 close to the flattening side folding mechanism 2, a protective frame 7 is fixedly installed on the side of the top of the device base 1 close to the flattening side folding mechanism 2, an observation window 71 is fixedly installed in the middle of the protective frame 7, and the flattening side folding mechanism 2 is protected by arranging the protective frame 7 and the observation window 71.

[0042] The flat side folding mechanism 2 includes two symmetrically distributed mechanism side frames 21, and translation slide frames 22 are provided on both sides of the bottom ends of the mechanism side frames 21. The translation slide frames 22 are fixedly installed on the top of the device base 1, and the top sliding card of the translation slide frame 22 is provided with two symmetrically distributed translation slide seats 221. The top of the translation slide seat 221 is fixedly installed with the bottom end of the corresponding mechanism side frame 21; double-headed screws 222 are rotatably installed in the translation slide frame 22, and the translation slide seat 221 is threadedly installed on the outer side of the corresponding double-headed screw 222. One end of the two double-headed screws 222 is fixedly provided with a pulley transmission group 223, and the pulley transmission group 223 includes two pulleys and a transmission belt movably sleeved on the outer sides of the two pulleys. The two belts The wheels are fixedly mounted on the ends of the corresponding double-headed screws 222, and a first motor 224 is fixedly mounted on one side of one of the translation slide frames 22. The driving end of the first motor 224 and the end of the corresponding double-headed screw 222 are fixedly mounted. By controlling the first motor 224 to be turned on and the transmission of the pulley transmission group 223 is used in conjunction with the transmission, the two double-headed screws 222 are driven to rotate synchronously, thereby controlling the corresponding translation slides 221 and the mechanism side frames 21 on both sides to move in opposite directions. On the contrary, the first motor 224 is controlled to be turned on and the transmission of the pulley transmission group 223 is used in conjunction with the transmission, thereby driving the two double-headed screws 222 to rotate synchronously in the opposite direction, thereby controlling the corresponding translation slides 221 and the mechanism side frames 21 on both sides to move toward each other.

[0043] Two symmetrically distributed translation rails 23 are provided on one side of the bottom end of the mechanism side frame 21 close to the translation slide frame 22. The translation rails 23 are fixedly mounted on the top of the device base 1. Translation guide seats 231 are slidably mounted on the translation rails 23. The translation guide seats 231 are fixedly mounted on the bottom end of the corresponding mechanism side frame 21 to increase the translation stability of the mechanism side frame 21.

[0044] Two sets of flat pieces 24 are provided at one end of the mechanism side frame 21 close to the transmission mechanism 3, and a side folding piece 25 is provided at one end of the mechanism side frame 21 away from the transmission mechanism 3;

[0045] The flattening member 24 comprises two first pressing rollers 241 symmetrically distributed in the upper and lower parts, and both ends of the two first pressing rollers 241 are provided with flattening side rollers 242, and both opposite ends of the flattening side rollers 242 are fixedly sleeved with limiting rings 243, and the two corresponding limiting rings 243 are in contact vertically. When in use, the plate for processing the refrigerator body is moved between the two first pressing rollers 241, and the side ends of the plate are in contact with the limiting rings 243 to limit the plate. Through the synchronous reverse rotation of the two first pressing rollers 241 and the flattening side rollers 242, the plate is transmitted and flattened.

[0046] The side folding member 25 comprises two second pressing rollers 251 symmetrically arranged in the upper and lower parts, two third pressing rollers 254 symmetrically arranged in the upper and lower parts, two fourth pressing rollers 257 symmetrically arranged in the upper and lower parts, and two fifth pressing rollers 2510 symmetrically arranged in the upper and lower parts, both ends of the second pressing roller 251 at the bottom position are provided with a first bottom folding roller 252, both ends of the second pressing roller 251 at the top position are provided with a first top folding roller 253, a first side folding area is formed between the first bottom folding roller 252 and the first top folding roller 253, both ends of the third pressing roller 254 at the bottom position are provided with a second bottom folding roller 255, and the third pressing roller 257 at the top position is provided with a first bottom folding roller 256. The second top folding roller 256 is provided at both ends of the pressing roller 254, and a second side folding area is formed between the second bottom folding roller 255 and the second top folding roller 256. The third bottom folding roller 258 is provided at both ends of the fourth pressing roller 257 at the bottom, and the third top folding roller 259 is provided at both ends of the fourth pressing roller 257 at the top, and a third side folding area is formed between the third bottom folding roller 258 and the third top folding roller 259. The fourth bottom folding roller 2511 is provided at both ends of the fifth pressing roller 2510 at the bottom, and the fourth top folding roller 2512 is provided at both ends of the fifth pressing roller 2510 at the top. A fourth side folding area is formed between the fourth bottom folding roller 2511 and the fourth top folding roller 2512, and the angles formed by the first side folding area, the second side folding area, the third side folding area and the fourth side folding area after longitudinal sectioning gradually decrease. The plate for processing the refrigerator body gradually moves between the two second pressing rollers 251, the two third pressing rollers 254, the two fourth pressing rollers 257 and the two fifth pressing rollers 2510. The plate is continuously transported and flattened by the synchronous reverse rotation of the two second pressing rollers 251, the two third pressing rollers 254, the two fourth pressing rollers 257 and the two fifth pressing rollers 2510. At the same time, the plate The side ends gradually come into contact with the first bottom side folding roller 252, the first top side folding roller 253 for extrusion plasticity, the second bottom side folding roller 255, the second top side folding roller 256 for extrusion plasticity, the third bottom side folding roller 258, the third top side folding roller 259 for extrusion plasticity, and the fourth bottom side folding roller 2511, the fourth top side folding roller 2512 for extrusion plasticity. Since the angles formed by the first side folding area, the second side folding area, the third side folding area and the fourth side folding area after longitudinal sectioning gradually decrease, the side ends of the plate are gradually bent synchronously to form a fixed position at the side ends of the plate, thereby improving the bending processing efficiency of the plate used for processing the refrigerator cabinet body.

[0047] The opposite ends of the flattening side roller 242, the opposite ends of the first bottom side folding roller 252, the opposite ends of the first top side folding roller 253, the opposite ends of the second bottom side folding roller 255, the opposite ends of the second top side folding roller 256, the opposite ends of the third bottom side folding roller 258, the opposite ends of the third top side folding roller 259, the opposite ends of the fourth bottom side folding roller 2511, and the opposite ends of the fourth top side folding roller 2512 are all fixedly mounted with roller shafts 26, and the roller shafts 26 are rotatably mounted on the corresponding mechanism side frames 21;

[0048] The opposite end of the flattening side roller 242, the opposite end of the first bottom side folding roller 252, the opposite end of the first top side folding roller 253, the opposite end of the second bottom side folding roller 255, the opposite end of the second top side folding roller 256, the opposite end of the third bottom side folding roller 258, the opposite end of the third top side folding roller 259, the opposite end of the fourth bottom side folding roller 2511, and the opposite end of the fourth top side folding roller 2512 are all fixedly mounted with a clamping shaft 261, and the clamping shaft 261 is movably clamped on the corresponding first pressing roller 241 The ends of the second pressing roller 251, the third pressing roller 254, the fourth pressing roller 257 and the fifth pressing roller 2510 are convenient for disassembling the first pressing roller 241, the second pressing roller 251, the third pressing roller 254, the fourth pressing roller 257 and the fifth pressing roller 2510, and replacing the first pressing roller 241, the second pressing roller 251, the third pressing roller 254, the fourth pressing roller 257 and the fifth pressing roller 2510 of different lengths to adapt to the side bending processing of plates of different widths, thereby improving the flexibility of use of the entire device.

[0049] A transmission gear 27 is fixedly installed on the end of the roller shaft 26, and the two vertically corresponding transmission gears 27 are meshed and connected. A sprocket transmission group 28 is fixedly installed on one end of the horizontally corresponding multiple roller shafts 26. The sprocket transmission group 28 includes multiple sprockets and transmission chains meshed on the outsides of the multiple sprockets. The multiple sprockets are respectively fixedly installed on the ends of the corresponding roller shafts 26. A second motor 29 is fixedly installed on the outside of one of the mechanism side frames 21. The driving end of the second motor 29 is fixedly installed on the end of the corresponding roller shaft 26. When in use, the second motor 29 is controlled to start, cooperate with the transmission of the sprocket transmission group 28, and the meshing connection of the two vertically corresponding transmission gears 27, so as to synchronously drive the two first pressure rollers 241 to rotate in reverse, the two second pressure rollers 251 to rotate in reverse, the two third pressure rollers 254 to rotate in reverse, the two fourth pressure rollers 257 to rotate in reverse, and the two fifth pressure rollers 2510 to rotate in reverse.

[0050] The bending mechanism 5 includes a mounting frame 51, which is fixedly mounted on the top of the device base 1. A material placing bottom plate 52 is fixedly mounted on the top of the mounting frame 51. A turning groove 501 is provided in the middle of the material placing bottom plate 52. A bending bottom plate 53 is movably mounted in the turning groove 501. A turning shaft 531 is fixedly mounted on one end of the bending bottom plate 53. The turning shaft 531 is rotatably mounted on the material placing bottom plate 52 to facilitate the turning of the bending bottom plate 53, thereby supporting the turning and bending of the sheet from the bottom.

[0051] A connecting frame 54 is fixedly installed on one side of the bending base plate 53, and a rotating seat 55 is provided on the opposite sides of the middle part of the connecting frame 54. A rotating shaft 551 is fixedly installed on the two rotating seats 55, and the rotating shaft 551 is rotatably installed in the middle part of the connecting frame 54. A rotating frame 56 is fixedly installed on the side of the top of the device base 1 close to the rotating seat 55, and a rotating frame 561 is rotatably installed on the top of the rotating frame 56. An electric telescopic rod 57 is fixedly installed between the top of the rotating frame 561 and the bottom end of the corresponding rotating seat 55. When in use, the electric telescopic rod 57 is controlled to be opened and extended, and the rotating installation of the rotating seat 55 and the rotating frame 561 is coordinated to drive the bending base plate 53 to flip upward.

[0052] The upper pressure mechanism 6 includes a middle pressure frame 61, and two symmetrically distributed telescopic pressure frames 62 are vertically installed at both ends of the middle pressure frame 61. A side pressure frame 63 is provided on the side of the telescopic pressure frame 62 away from the middle pressure frame 61. A positioning long groove 631 is opened at the bottom end of the side pressure frame 63. A telescopic pressure frame 64 is vertically installed on the side of the side pressure frame 63 close to the telescopic pressure frame 62. The telescopic pressure frame 62 is slidably connected to the bottom side of the corresponding telescopic pressure frame 64. A guide shaft 651 is fixedly installed on the side of the side pressure frame 63 close to the middle pressure frame 61. A guide pressure frame 65 is fixedly installed on the side of the middle pressure frame 61 close to the side pressure frame 63. The guide shaft 651 is slidably connected to the corresponding guide pressure frame 65. The upper pressure mechanism 6 is connected through one end of the two side pressure frames 63 and the corresponding One end of the mechanism side frame 21 is fixedly installed. When the mechanism side frame 21 moves horizontally, it drives the two side pressure frames 63 to move horizontally to adapt to plates of different widths. At this time, the positioning long groove 631 corresponds to the fixed part formed at the side end of the plate. The plate continues to be transmitted after being folded sideways. The fixed part is inserted into the positioning long groove 631 for positioning. The plate is moved under the telescopic pressure frame 62, the side pressure frame 63, the telescopic pressure frame 64 and the guide pressure frame 65 until the bending part of the plate corresponds to the telescopic pressure frame 62 and the telescopic pressure frame 64 at the end position of one side away from the mechanism side frame 21. The upper surface of the plate is pressed and positioned to facilitate the upward turning and bending bottom plate 53 for bending processing, thereby preventing the fixed part from being deformed during subsequent bending of the plate, thereby further improving the bending effect.

[0053] The transmission mechanism 3 includes two sets of transmission side frames 31, which are fixedly installed on the top of the device base 1. The tops of the transmission side frames 31 are rotatably installed with transmission rollers 32, and the outer sides of the two transmission rollers 32 are movably sleeved with transmission belts 33. A third motor 34 is fixedly installed on the outer side of one of the transmission side frames 31, and the driving end of the third motor 34 and the end of one of the transmission rollers 32 are fixedly installed; the limiting mechanism 4 includes two symmetrically distributed limiting side plates 41, and one end of the limiting mechanism 4 is fixedly installed with a fixing frame 42. The limiting mechanism 4 is connected through two sets of The fixing frame 42 is fixedly installed on one end of the corresponding mechanism side frame 21. When the mechanism side frame 21 translates, the two limiting side plates 41 are driven to translate, so that the two limiting side plates 41 correspond to the limiting rings 243, which are adapted to the limiting transmission of the side ends of plates with different widths. When in use, the plate is placed on the upper surface of the conveyor belt 33, and the third motor 34 is controlled to start, driving one of the conveyor rollers 32 to rotate, driving the conveyor belt 33 to transmit, and automatically transmitting the plate. In cooperation with the limiting of the limiting side plate 41, the plate is accurately moved between the two first pressure rollers 241.

[0054] A method for using a refrigerator cabinet flattening and bending device, comprising the following steps:

[0055] Step 1, adjust the flattening and bending device of the refrigerator body according to the width of the plate, control the first motor 224 to start, cooperate with the transmission of the pulley transmission group 223, drive the two double-headed screws 222 to rotate synchronously, and then control the corresponding two-side translation slide 221 and the mechanism side frame 21 to move back to back, install the first pressing roller 241, the second pressing roller 251, the third pressing roller 254, the fourth pressing roller 257 and the fifth pressing roller 2510 of appropriate length, at this time, the side end of the plate can contact the limiting ring 243, and the bending part of the side end of the plate corresponds to the first bottom side folding roller 252, the first top side folding roller 253, the second bottom side folding roller 255, the second top side folding roller 256, the third bottom side folding roller 258, the third top side folding roller 259 and the fourth bottom side folding roller 2511, the fourth top side folding roller 2512;

[0056] When the side frame 21 of the mechanism translates, the two side pressure frames 63 are translated, the positioning long groove 631 and the fixed part formed by the side end of the plate can correspond to each other, and the two limiting side plates 41 are translated, so that the two limiting side plates 41 correspond to the limiting ring 243, and are adapted to plates of different widths;

[0057] Step 2: Place the plate on the upper surface of the conveyor belt 33, control the third motor 34 to start, drive one of the conveyor rollers 32 to rotate, drive the conveyor belt 33 to convey, automatically convey the plate, cooperate with the limiting side plate 41 to accurately move the plate between the two first pressing rollers 241;

[0058] At the same time, the second motor 29 is controlled to start, cooperate with the transmission of the sprocket transmission group 28, and the meshing connection of the two vertically corresponding transmission gears 27, so as to synchronously drive the two first pressing rollers 241 to rotate in the opposite direction, the two second pressing rollers 251 to rotate in the opposite direction, the two third pressing rollers 254 to rotate in the opposite direction, the two fourth pressing rollers 257 to rotate in the opposite direction, and the two fifth pressing rollers 2510 to rotate in the opposite direction;

[0059] Step 3: The plate is moved between the two first pressing rollers 241, and the side end of the plate contacts the limiting ring 243 to limit the plate. The plate is transported and flattened by the synchronous reverse rotation of the two first pressing rollers 241 and the flattening side roller 242;

[0060] Subsequently, the sheet material is gradually moved between the two second pressing rollers 251, the two third pressing rollers 254, the two fourth pressing rollers 257 and the two fifth pressing rollers 2510, and the sheet material is continuously transported and flattened by the synchronous reverse rotation of the two second pressing rollers 251, the two third pressing rollers 254, the two fourth pressing rollers 257 and the two fifth pressing rollers 2510. At the same time, the side end of the sheet material is gradually contacted with the first bottom side folding roller 252, the first top side folding roller 253 for plastic extrusion, the second bottom side folding roller 255, the second top side folding roller 256 for plastic extrusion, the third bottom side folding roller 258, the third top side folding roller 259 for plastic extrusion, and the fourth bottom side folding roller 2511, the fourth top side folding roller 2512 for plastic extrusion. Since the angles formed by the longitudinal sectioning of the first side folding area, the second side folding area, the third side folding area and the fourth side folding area are gradually reduced, the side end of the sheet material is synchronously and gradually bent;

[0061] Step 4: After the sheet is folded sideways, it is continuously transported, and the fixed part is inserted into the positioning long groove 631 for positioning. The sheet is moved under the telescopic pressing frame 62, the side pressing frame 63, the telescopic pressing frame 64 and the guide pressing frame 65 until the bending part of the sheet corresponds to the telescopic pressing frame 62 and the telescopic pressing frame 64 at the end position of one side away from the mechanism side frame 21, and the upper surface of the sheet is pressed and positioned;

[0062] Then, the electric telescopic rod 57 is controlled to extend, and the rotating seat 55 and the rotating frame 561 are rotated to drive the bending bottom plate 53 to flip upward, so as to automatically support and flip the plate from the bottom.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A refrigerator body flattening and bending device, comprising a device base (1), characterized in that: A flat side folding mechanism (2) is fixedly mounted in the middle of the top of the device base (1); a transmission mechanism (3) is fixedly mounted on one side of the top of the device base (1); a limiting mechanism (4) is provided on the side of the top of the transmission mechanism (3) close to the flat side folding mechanism (2); a bending mechanism (5) is fixedly mounted on the side of the top of the device base (1) away from the transmission mechanism (3); a pressing mechanism (6) is provided on the side of the top of the bending mechanism (5) close to the flat side folding mechanism (2); a protective frame (7) is fixedly mounted on the side of the top of the device base (1) close to the flat side folding mechanism (2); and an observation window (71) is fixedly mounted in the middle of the protective frame (7).

2. The device for flattening and bending a refrigerator body according to claim 1, characterized in that: The flat side folding mechanism (2) comprises two symmetrically distributed mechanism side frames (21), both sides of the bottom end of the mechanism side frames (21) are provided with translation sliding frames (22), the translation sliding frames (22) are fixedly mounted on the top end of the device base (1), the top end sliding card of the translation sliding frame (22) is provided with two symmetrically distributed translation sliding seats (221), the top end of the translation sliding seat (221) and the bottom end of the corresponding mechanism side frame (21) are fixedly mounted, and the bottom end of the mechanism side frame (21) is provided with two symmetrically distributed translation sliding rails (23) on one side close to the translation sliding frame (22), the translation sliding rails (23) are fixedly mounted on the top end of the device base (1), and the translation guide seats (231) are slidably mounted on the translation sliding rails (23), the The translation guide seat (231) is fixedly installed at the bottom end of the corresponding mechanism side frame (21); the mechanism side frame (21) is provided with two groups of flattening members (24) at one end close to the transmission mechanism (3); the mechanism side frame (21) is provided with a side folding member (25) at one end away from the transmission mechanism (3); the flattening member (24) comprises two first pressure rollers (241) symmetrically distributed up and down; both ends of the two first pressure rollers (241) are provided with flattening side rollers (242); the opposite ends of the flattening side rollers (242) are fixedly sleeved with limiting rings (243), and the two corresponding limiting rings (243) are in contact vertically; the side folding member (25) comprises two second pressure rollers (251) symmetrically distributed up and down, and two third pressure rollers (252) symmetrically distributed up and down. 4), two fourth pressing rollers (257) symmetrically distributed up and down and two fifth pressing rollers (2510) symmetrically distributed up and down, both ends of the second pressing roller (251) at the bottom position are provided with a first bottom folding roller (252), both ends of the second pressing roller (251) at the top position are provided with a first top folding roller (253), a first side folding area is formed between the first bottom folding roller (252) and the first top folding roller (253), both ends of the third pressing roller (254) at the bottom position are provided with a second bottom folding roller (255), both ends of the third pressing roller (254) at the top position are provided with a second top folding roller (256), a second side folding area is formed between the second bottom folding roller (255) and the second top folding roller (256), the bottom Both ends of the fourth pressing roller (257) at the bottom position are provided with a third bottom folding roller (258), and both ends of the fourth pressing roller (257) at the top position are provided with a third top folding roller (259), and a third side folding area is formed between the third bottom folding roller (258) and the third top folding roller (259), and both ends of the fifth pressing roller (2510) at the bottom position are provided with a fourth bottom folding roller (2511), and both ends of the fifth pressing roller (2510) at the top position are provided with a fourth top folding roller (2512), and a fourth side folding area is formed between the fourth bottom folding roller (2511) and the fourth top folding roller (2512), and the angles formed by longitudinally sectioning the first side folding area, the second side folding area, the third side folding area and the fourth side folding area gradually decrease.

3. The device for flattening and bending a refrigerator body according to claim 2, characterized in that: The opposite ends of the flattening side roller (242), the opposite ends of the first bottom side folding roller (252), the opposite ends of the first top side folding roller (253), the opposite ends of the second bottom side folding roller (255), the opposite ends of the second top side folding roller (256), the opposite ends of the third bottom side folding roller (258), the opposite ends of the third top side folding roller (259), the opposite ends of the fourth bottom side folding roller (2511), and the opposite ends of the fourth top side folding roller (2512) are all fixedly mounted with roller shafts (26), and the roller shafts (26) are rotatably mounted on the corresponding mechanism side frame (21). The opposite ends of the flattening side roller (242), the first bottom side folding roller (253), the opposite ends of the second bottom side folding roller (255), the opposite ends of the second top side folding roller (256), the opposite ends of the third bottom side folding roller (258), the opposite ends of the third top side folding roller (259), the opposite ends of the fourth bottom side folding roller (2511), and the opposite ends of the fourth top side folding roller (2512) are all fixedly mounted with roller shafts (26). The opposite ends of the first pressing roller (241), the second pressing roller (251), the third pressing roller (254), the fourth pressing roller (257) and the fifth pressing roller (2510) are fixedly mounted with a fixing shaft (261), and the fixing shaft (261) is movably connected to the ends of the first pressing roller (241), the second pressing roller (251), the third pressing roller (254), the fourth pressing roller (257) and the fifth pressing roller (2510).

4. The device for flattening and bending a refrigerator body according to claim 3, characterized in that: A transmission gear (27) is fixedly mounted on the end of the roller shaft (26), and two of the transmission gears (27) are meshed and connected vertically. A sprocket transmission group (28) is fixedly mounted on one end of a plurality of roller shafts (26) horizontally. The sprocket transmission group (28) includes a plurality of sprockets and a transmission chain meshed on the outside of the plurality of sprockets. The plurality of sprockets are respectively fixedly mounted on the ends of the corresponding roller shafts (26). A second motor (29) is fixedly mounted on the outside of one of the mechanism side frames (21), and a driving end of the second motor (29) is fixedly mounted on the end of the corresponding roller shaft (26).

5. The device for flattening and bending a refrigerator body according to claim 2, characterized in that: A double-headed screw (222) is rotatably installed in each of the translation slide frames (22); the translation slide seat (221) is threadedly installed on the outer side of the corresponding double-headed screw (222); a pulley transmission group (223) is fixedly installed at one end of each of the two double-headed screws (222); the pulley transmission group (223) comprises two pulleys and a transmission belt movably sleeved on the outer sides of the two pulleys; the two pulleys are respectively fixedly installed at the ends of the corresponding double-headed screw (222); a first motor (224) is fixedly installed on one side of one of the translation slide frames (22); a driving end of the first motor (224) is fixedly installed on the end of the corresponding double-headed screw (222).

6. The device for flattening and bending a refrigerator body according to claim 1, characterized in that: The bending mechanism (5) comprises a mounting frame (51), the mounting frame (51) is fixedly mounted on the top of the device base (1), a material placing base plate (52) is fixedly mounted on the top of the mounting frame (51), a turning groove (501) is provided in the middle of the material placing base plate (52), a bending base plate (53) is movably arranged in the turning groove (501), a turning shaft (531) is fixedly mounted on one end of the bending base plate (53), the turning shaft (531) is rotatably mounted on the material placing base plate (52), and a turning shaft (531) is fixedly mounted on one side of the bending base plate (53). A connecting frame (54) is provided, and rotating seats (55) are provided on opposite sides of the middle of the connecting frame (54). Rotating shafts (551) are fixedly mounted on the two rotating seats (55), and the rotating shafts (551) are rotatably mounted in the middle of the connecting frame (54). A rotating frame (56) is fixedly mounted on the top of the device base (1) and close to the rotating seat (55). A rotating frame (561) is rotatably mounted on the top of the rotating frame (56), and an electric telescopic rod (57) is fixedly mounted between the top of the rotating frame (561) and the bottom of the corresponding rotating seat (55).

7. The device for flattening and bending a refrigerator body according to claim 2, characterized in that: The upper pressing mechanism (6) comprises a middle pressing frame (61), two ends of the middle pressing frame (61) are vertically mounted with two symmetrically distributed telescopic pressing frames (62), a side pressing frame (63) is arranged on the side of the telescopic pressing frame (62) away from the middle pressing frame (61), a positioning long groove (631) is opened at the bottom end of the side pressing frame (63), a telescopic pressing frame (64) is vertically mounted on the side of the side pressing frame (63) close to the telescopic pressing frame (62), and the telescopic pressing frame (62) is slidable. The movable clamp is connected to one side of the bottom of the corresponding telescopic pressure frame (64); a guide shaft (651) is fixedly installed on one side of the side pressure frame (63) close to the middle pressure frame (61); a guide pressure frame (65) is fixedly installed on one side of the middle pressure frame (61) close to the side pressure frame (63); the guide shaft (651) is slidably clamped in the corresponding guide pressure frame (65); and the upper pressure mechanism (6) is fixedly installed through one end of the two side pressure frames (63) and one end of the corresponding mechanism side frame (21).

8. The device for flattening and bending a refrigerator body according to claim 1, characterized in that: The transmission mechanism (3) comprises two groups of transmission side frames (31), the transmission side frames (31) are fixedly mounted on the top of the device base (1), the top of each of the transmission side frames (31) is rotatably mounted with a transmission roller (32), the outer movable sleeves of the two transmission rollers (32) are provided with a transmission belt (33), the outer side of one of the transmission side frames (31) is fixedly mounted with a third motor (34), and the driving end of the third motor (34) and the end of one of the transmission rollers (32) are fixedly mounted.

9. The device for flattening and bending a refrigerator body according to claim 2, characterized in that: The limiting mechanism (4) comprises two symmetrically distributed limiting side plates (41), one end of the limiting mechanism (4) is fixedly mounted with a fixing frame (42), and the limiting mechanism (4) is fixedly mounted via two sets of fixing frames (42) and one end of a corresponding mechanism side frame (21).

10. A method for using the refrigerator body flattening and bending device according to any one of claims 1 to 9, characterized in that: The steps include: Step 1, adjusting the flattening and bending device of the refrigerator body according to the width of the plate, by controlling to start the first motor (224), and cooperating with the transmission of the pulley transmission group (223), driving the two double-headed screws (222) to rotate synchronously, thereby controlling the corresponding two-side translation slides (221) and the mechanism side frame (21) to move back to back, and installing the first pressing roller (241), the second pressing roller (251), the third pressing roller (254), the fourth pressing roller (257) and the fifth pressing roller (2510) of appropriate lengths. At this time, the side end of the plate can contact the limiting ring (243), and the bending part of the side end of the plate corresponds to the position of the first bottom side folding roller (252), the first top side folding roller (253), the second bottom side folding roller (255), the second top side folding roller (256), the third bottom side folding roller (258), the third top side folding roller (259) and the fourth bottom side folding roller (2511), and the fourth top side folding roller (2512); When the side frame (21) of the mechanism translates, the two side pressure frames (63) are driven to translate, so that the positioning long groove (631) and the fixed part formed by the side end of the plate can correspond to each other, and the two limiting side plates (41) are driven to translate, so that the two limiting side plates (41) and the limiting ring (243) correspond to each other, so as to adapt to plates of different widths; Step 2: Place the plate on the upper surface of the conveyor belt (33), control the third motor (34) to start, drive one of the conveyor rollers (32) to rotate, drive the conveyor belt (33) to transmit, automatically transmit the plate, cooperate with the limit of the limit side plate (41), and accurately move the plate between the two first pressure rollers (241); At the same time, the second motor (29) is controlled to start, cooperate with the transmission of the sprocket transmission group (28), and the meshing connection of the two vertically corresponding transmission gears (27), so as to synchronously drive the two first pressing rollers (241) to rotate in the opposite direction, the two second pressing rollers (251) to rotate in the opposite direction, the two third pressing rollers (254) to rotate in the opposite direction, the two fourth pressing rollers (257) to rotate in the opposite direction, and the two fifth pressing rollers (2510) to rotate in the opposite direction; Step 3: The plate is moved between the two first pressing rollers (241), and the side end of the plate contacts the limiting ring (243) to limit the plate. The plate is transported and flattened by synchronously rotating the two first pressing rollers (241) and the flattening side roller (242) in opposite directions. Subsequently, the sheet material is gradually moved between the two second pressing rollers (251), the two third pressing rollers (254), the two fourth pressing rollers (257) and the two fifth pressing rollers (2510), and the sheet material is continuously transported and flattened by the synchronous reverse rotation of the two second pressing rollers (251), the two third pressing rollers (254), the two fourth pressing rollers (257) and the two fifth pressing rollers (2510). At the same time, the side end of the sheet material is gradually contacted with the first bottom folding roller (252), the first top folding roller (253) for plastic extrusion, the second bottom folding roller (255), the second top folding roller (256) for plastic extrusion, the third bottom folding roller (258), the third top folding roller (259) for plastic extrusion, and the fourth bottom folding roller (2511) and the fourth top folding roller (2512) for plastic extrusion. As the angles formed by the longitudinal section of the first side folding area, the second side folding area, the third side folding area and the fourth side folding area gradually decrease, the side end of the sheet material is synchronously and gradually bent. Step 4: After the plate is folded sideways, it is continuously transported, and the fixed part is inserted into the positioning long groove (631) for positioning. The plate is moved under the telescopic pressing frame (62), the side pressing frame (63), the telescopic pressing frame (64) and the guide pressing frame (65), until the bending part of the plate corresponds to the telescopic pressing frame (62) and the telescopic pressing frame (64) at the end position of one side away from the mechanism side frame (21), and the upper surface of the plate is pressed and positioned; Subsequently, the electric telescopic rod (57) is controlled to be extended, and the rotating seat (55) and the rotating frame (561) are coordinated to rotate and install, so as to drive the bending bottom plate (53) to flip upward, and the plate is automatically supported and turned from the bottom.