Continuous bending mechanism for air conditioner sheet metal parts

Abstract

The present invention discloses a continuous bending mechanism for air conditioner sheet metal parts, comprising: a base, a sliding chamber is opened downward on the upper surface; a driving block is slidably arranged on the base in a vertical direction; a first supporting block, a forming chamber is opened downward on the upper surface, when the driving block moves downward, the driving block presses the sheet metal part into the forming chamber to complete the first bending, the first supporting block is configured to slide downward synchronously with the driving block after the first bending of the sheet metal part; two first sliders, when the first supporting block slides downward, the first supporting block drives the two first sliders toward each other, when the first supporting block slides upward, the first supporting block drives the two first sliders away from each other, when the two first sliders approach each other, the two first sliders squeeze the sheet metal part in the horizontal direction above the forming chamber and complete the second bending of the sheet metal part. The present invention can complete the continuous bending of inverted trapezoidal sheet metal parts in one go, thereby improving processing efficiency and ensuring processing accuracy.

Description

Technical Field

[0001] The present invention relates to the field of sheet metal bending equipment, and in particular to a continuous bending mechanism for air conditioner sheet metal parts. Background Art

[0002] In household appliances, sheet metal parts are usually set to fix the position of internal components of the appliance. In air conditioners, it is necessary to set Figure 1 The inverted trapezoidal sheet metal shown is used to secure the air conditioner's internal wiring within the arched space formed by the sheet metal. To form an inverted trapezoidal sheet metal, the flat sheet metal must be bent multiple times, and each bend angle varies. Existing processes require different bending machines to perform these bending processes, resulting in low processing efficiency. Furthermore, the need to transfer material between different bending machines affects processing accuracy. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a continuous bending mechanism for air conditioner sheet metal parts, which can complete the continuous bending of inverted trapezoidal sheet metal parts in one go, thereby improving processing efficiency and ensuring processing accuracy.

[0004] According to an embodiment of the present invention, the continuous bending mechanism of the air-conditioning sheet metal part includes: a base, the upper surface of the base is provided with a sliding chamber downward; a driving block is slidably arranged on the base in a vertical direction, and the driving block is located above the sliding chamber; a first supporting block is slidably arranged in the middle of the sliding chamber in a vertical direction, the first supporting block can horizontally support the sheet metal part, the upper surface of the first supporting block is provided with a forming chamber downward, and the forming chamber is in an inverted trapezoidal shape. When the driving block moves downward, the driving block presses the sheet metal part into the forming chamber and completes the first bending of the sheet metal part , the first supporting block is configured to slide downward synchronously with the driving block after the first bending of the sheet metal part; two first sliders are arranged in the sliding chamber and are located on the left and right sides of the first supporting block. When the first supporting block slides downward, the first supporting block drives the two first sliders to approach each other. When the first supporting block slides upward, the first supporting block drives the two first sliders to move away from each other. When the two first sliders approach each other, the two first sliders squeeze the sheet metal part in the horizontal direction above the forming chamber and complete the second bending of the sheet metal part.

[0005] At least the following beneficial effects are achieved: during processing, the sheet metal is placed horizontally on the first supporting block, which can support the sheet metal horizontally, and then the driving block is made to slide downward in the vertical direction. During this process, the driving block can press the sheet metal down into the forming chamber of the first supporting block, and the sheet metal can be deformed into a shape that matches the forming chamber under the joint action of the forming chamber and the driving block. During the above process, the driving block completes the first bending of the sheet metal; then, the driving block continues to slide downward to press against the first supporting block and drive the first supporting block to move downward synchronously. During the downward movement of the first supporting block, the first supporting block can drive the two first sliders to approach each other, and the first sliders that approach each other can further bend the sheet metal, thereby achieving the second bending of the sheet metal. The continuous bending mechanism for air-conditioning sheet metal in the present invention can complete the continuous bending of inverted trapezoidal sheet metal at one time, thereby improving processing efficiency and ensuring processing accuracy.

[0006] According to some embodiments of the present invention, two second sliders are further included, and the two second sliders are symmetrically arranged on the left and right sides of the driving block. The second sliders slide in cooperation with the driving block, and the driving block is configured to drive the two second sliders away from each other when sliding downward, and drive the two second sliders towards each other when sliding upward.

[0007] According to some embodiments of the present invention, a first inclined plane and a second inclined plane are respectively provided on the left and right sides of the driving block, the first inclined plane gradually tilts downward from left to right, and the second inclined plane gradually tilts downward from right to left, and the two second sliders are both provided with a third inclined plane, and the two third inclined planes are respectively fitted with the first inclined plane and the second inclined plane, and the two second sliders can slide up and down obliquely along the first inclined plane and the second inclined plane, respectively, and the driving block is provided with two guide columns, and the axial directions of the two guide columns are respectively parallel to the first inclined plane and the second inclined plane, and the two guide columns are both provided with a first compression spring, which can be extended and retracted along the axial direction of the guide column, and the two ends of the first compression spring are respectively connected to the driving block and the second slider.

[0008] According to some embodiments of the present invention, a second supporting block is provided on the upper part of the first supporting block, and the second supporting block can slide between an initial position and an end position in a vertical direction. The upper surface of the second supporting block is flush with the upper surface of the first supporting block at the initial position, and a accommodating chamber is opened downward on the bottom surface of the forming chamber. In the process of the driving block pressing down the sheet metal part, the second supporting block always adheres to the lower surface of the sheet metal part and finally moves down into the accommodating chamber. When the second supporting block is located in the accommodating chamber, the second supporting block is in the end position and the upper surface of the second supporting block is flush with the lower surface of the forming chamber.

[0009] According to some embodiments of the present invention, a second compression spring is provided between the second supporting block and the first supporting block, and a third compression spring is provided between the first supporting block and the base.

[0010] According to some embodiments of the present invention, the force with which the second compression spring is forced to deform is smaller than the force with which the third compression spring is forced to deform.

[0011] According to some embodiments of the present invention, the sliding chamber is in a flared shape with the opening facing upward, and the left and right sides of the inner surface of the sliding chamber are guide surfaces. The first slider can slide up and down obliquely along the guide surfaces. The upper end of the first slider is provided with a top portion in the left and right directions, and the top portion is located on the side of the first slider away from the guide surface. The top portion extends in a horizontal direction, and the driving block is provided with a bending portion, which is recessed toward the interior of the driving block. When the first supporting block slides downward and drives the two first sliders closer to each other, the top portion can press the sheet metal against the bending portion to enable the sheet metal to complete a second bending.

[0012] According to some embodiments of the present invention, first vertical surfaces are vertically provided on both sides of the first supporting block, and a second vertical surface is provided on the side of the first sliding block away from the top guide surface. During the first bending process of the sheet metal part, the first vertical surface is in contact with the second vertical surface.

[0013] According to some embodiments of the present invention, one end of the abutting portion for abutting the sheet metal part is provided with a rounded corner.

[0014] According to some embodiments of the present invention, the base is provided with a pushing member that slides in the vertical direction, and two pressure blocks are provided on the pushing member, and the pressure blocks are located above the first sliding block and can slide in the horizontal direction relative to the pushing member, the driving block is provided with a fourth inclined surface, and the pressure block is provided with a fifth inclined surface parallel to the fourth inclined surface. After the pushing member drives the pressure block to slide downward to a state where the fourth inclined surface is in contact with the fifth inclined surface, the downward movement of the pushing member can drive the two pressure blocks to slide obliquely downward along the two fourth inclined surfaces and move away from each other. When the two pressure blocks move away from each other, the pressure block horizontally pushes the end of the sheet metal and flattens the end of the sheet metal onto the first sliding block to complete the third bending of the sheet metal.

[0015] According to some embodiments of the present invention, two sliding grooves are provided on the base, and the pressure block is horizontally provided with a column, and the columns of the two pressure blocks can slide along the two sliding grooves respectively, and the sliding groove includes a vertical section and an inclined section, and the inclination direction of the inclined section is parallel to the fourth inclined surface, and the inclined section of the sliding groove on the left side of the driving block gradually inclines downward from right to left, and the inclined section of the sliding groove on the right side of the driving block gradually inclines downward from left to right, and when the fourth inclined surface is in contact with the fifth inclined surface, the column is located at the junction of the vertical section and the inclined section.

[0016] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0018] Figure 1 Schematic diagram of the structure of the sheet metal part after three bendings in an embodiment of the present invention;

[0019] Figures 2 to 4 Schematic diagram of the cross-sectional structure of the driving member in an embodiment of the present invention when it gradually moves downward and performs the first bending;

[0020] Figures 5 to 9 The driving member in the embodiment of the present invention is Figure 3 Schematic diagram of the cross-sectional structure when the foundation continues to move gradually downward and performs a second bend;

[0021] Figures 10 to 12 The push member in the embodiment of the present invention is Figure 7 Schematic diagram of the cross-sectional structure when the foundation gradually moves downward and performs the third bend;

[0022] Figure Number:

[0023] Base 100, sliding chamber 110, guide surface 120, push member 130, pressure block 131, fifth inclined surface 132, column 133, slide groove 140, vertical section 141, inclined section 142;

[0024] Driving block 200, guide post 210, first compression spring 220, first inclined surface 230, second inclined surface 240, fourth inclined surface 250;

[0025] The first supporting block 300, the forming chamber 310, the accommodating chamber 311, the first vertical surface 320, and the third compression spring 330;

[0026] Sheet metal part 400, first bending position 410, second bending position 420, third bending position 430;

[0027] A first slider 500, an abutting top 510, and a second vertical surface 520;

[0028] The second slider 600, the third inclined surface 610, and the bent portion 620;

[0029] The second supporting block 700 and the second compression spring 710 . DETAILED DESCRIPTION

[0030] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0032] In the description of the present invention, if there is a description of first, second, third, fourth, and fifth, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, and accommodating should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figures 1 to 12 The present invention discloses a continuous bending mechanism for air-conditioning sheet metal parts, which includes a base 100 , a driving block 200 , a first supporting block 300 and two first sliding blocks 500 .

[0035] The upper surface of the base 100 is provided with a sliding chamber 110 downwardly, the driving block 200 is slidably arranged on the base 100 in a vertical direction, the driving block 200 is located above the sliding chamber 110, and the first supporting block 300 is slidably arranged in the middle of the sliding chamber 110 in a vertical direction. The first supporting block 300 can horizontally support the sheet metal part 400, and the upper surface of the first supporting block 300 is provided with a forming chamber 310 downwardly, and the forming chamber 310 is in an inverted trapezoidal shape. When the driving block 200 moves downward, the driving block 200 presses the sheet metal part 400 into the forming chamber 310 and presses the sheet metal part 400 into the forming chamber 310 and presses the sheet metal part 400 into the forming chamber 310. Figure 1 The first bending of the sheet metal part 400 is completed at the first bending position 410 in the forming chamber. The first supporting block 300 is configured to slide downward synchronously with the driving block 200 after the first bending of the sheet metal part 400. The two first sliders 500 are arranged in the sliding chamber 110 and are located on the left and right sides of the first supporting block 300. When the first supporting block 300 slides downward, the first supporting block 300 drives the two first sliders 500 to approach each other. When the first supporting block 300 slides upward, the first supporting block 300 drives the two first sliders 500 to move away from each other. When the two first sliders 500 approach each other, the two first sliders 500 squeeze the sheet metal part 400 in the horizontal direction above the forming chamber 310 and press the sheet metal part 400 in the horizontal direction. Figure 1 The second bending of the sheet metal part 400 is completed at the second bending position 420 in FIG.

[0036] It is understandable that when processing, Figures 2 to 4 As shown, the sheet metal part 400 is placed horizontally on the first supporting block 300. The first supporting block 300 can horizontally support the sheet metal part 400, and then the driving block 200 is made to slide downward in the vertical direction. During this process, the driving block 200 can press the sheet metal part 400 down into the forming chamber 310 of the first supporting block 300. The sheet metal part 400 can be deformed into a shape that fits the forming chamber 310 under the joint action of the forming chamber 310 and the driving block 200. In the above process, the driving block 200 completes the first bending of the sheet metal part 400; then, as shown in FIG. Figures 5 to 9 As shown, the driving block 200 continues to slide downward, thereby abutting against the first supporting block 300 and driving the first supporting block 300 to move downward synchronously. During the downward movement of the first supporting block 300, the first supporting block 300 can drive the two first sliders 500 to approach each other. The approaching first sliders 500 can further bend the sheet metal part 400, achieving a second bending of the sheet metal part 400. The continuous bending mechanism for air conditioner sheet metal parts of the present invention can complete the continuous bending of inverted trapezoidal sheet metal parts in one go, thereby improving processing efficiency and ensuring processing accuracy.

[0037] It should be noted that the movement of the driving block 200 can be achieved by a driving source such as a cylinder or a motor. In addition, the inverted trapezoidal sheet metal part 400 can form an arched shape in the middle, which is convenient for arranging the wiring inside the arched position, and can optimize the wiring of the air-conditioning product. Figure 1 As shown, the wiring can also be clamped in the groove formed between the second bending position 420 and the third bending position 430 of the sheet metal part 400. In the use state, the sheet metal part 400 can be placed in the vertical direction with the Figure 1 The state of the middle sheet metal part 400 is opposite.

[0038] like Figures 2 to 12 As shown, this embodiment of the present invention may further include two second sliders 600, symmetrically disposed on the left and right sides of the driver block 200. The second sliders 600 and the driver block 200 slide in cooperation, and the driver block 200 is configured to drive the two second sliders 600 away from each other when sliding downward, and to drive the two second sliders 600 toward each other when sliding upward. When the two second sliders 600 are moving away from each other, the bottom surfaces of the second sliders 600 and the bottom surface of the driver block 200 can simultaneously contact the sheet metal part 400, increasing the area for pressing down on the sheet metal part 400 and improving structural stability. When the two second sliders 600 are moving toward each other, the bent sheet metal part 400 can be easily removed from the second sliders 600, facilitating blanking of the sheet metal part 400.

[0039] Reference Figures 2 to 12 In one embodiment of the present invention, a first inclined surface 230 and a second inclined surface 240 are respectively provided on the left and right sides of the driving block 200. The first inclined surface 230 gradually slopes downward from left to right, and the second inclined surface 240 gradually slopes downward from right to left. Both second sliders 600 are provided with a third inclined surface 610. The two third inclined surfaces 610 are respectively aligned with the first inclined surface 230 and the second inclined surface 240. The two second sliders 600 can slide up and down along the first inclined surface 230 and the second inclined surface 240, respectively. When the driving block 200 slides upward, the two second sliders 600 can slide downward relative to the driving block 200 under the action of their own weight and approach each other.

[0040] Reference Figures 2 to 12 In another embodiment of the present invention, the driver block 200 is provided with two guide posts 210. The axes of the two guide posts 210 are parallel to the first inclined surface 230 and the second inclined surface 240, respectively. A first compression spring 220 is sleeved around each guide post 210. The first compression spring 220 is retractable along the axial direction of the guide post 210. The ends of the first compression spring 220 are respectively connected to the driver block 200 and the second slider 600. When the driver block 200 slides downward, the first compression spring 220 is compressed. When the driver block slides upward, the first compression spring 220 gradually returns to its original state.

[0041] like Figures 2 to 12 As shown, a second supporting block 700 is disposed above the first supporting block 300. The second supporting block 700 can slide vertically between an initial position and an end position. In the initial position, the upper surface of the second supporting block 700 is flush with the upper surface of the first supporting block 300. At this point, the first supporting block 300 and the second supporting block 700 can jointly horizontally support the sheet metal component 400. The second supporting block 700 can support the sheet metal component 400 at its bottom during the downward movement of the driving block 200, thereby improving the stability of the sheet metal component 400 during the first bending process. In addition, a accommodating chamber 311 is opened downward on the bottom surface of the forming chamber 310. During the process of the driving block 200 pressing down the sheet metal part 400, the second supporting block 700 always adheres to the lower surface of the sheet metal part 400 and finally moves down into the accommodating chamber 311. When the second supporting block 700 is located in the accommodating chamber 311, the second supporting block 700 is in the said terminal position and the upper surface of the second supporting block 700 is flush with the lower surface of the forming chamber 310. At this time, the upper surface of the second supporting block 700 and the forming chamber 310 together form an inverted trapezoidal space for the sheet metal part 400 to be formed.

[0042] In an embodiment of the present invention, a second compression spring 710 may be disposed between the second support block 700 and the first support block 300, and a third compression spring 330 may be disposed between the first support block 300 and the base 100. The second compression spring 710 assists the upward movement of the second support block 700 during the upward movement of the driving block 200; the third compression spring 330 assists the upward movement of the first support block 300 during the upward movement of the driving block 200. The second and third compression springs 710 and 330 help the first and second support blocks 300 and 700 within the bending mechanism automatically return to their initial state and position.

[0043] It can be understood that the force of the forced deformation of the second compression spring 710 can be set to be smaller than the force of the forced deformation of the third compression spring 330, so that when the driving block 200 moves downward, the driving block 200 can first force the second compression spring 710 to deform, thereby causing the second supporting block 700 to slide downward. At this time, the third compression spring 330 has not reached the critical force of deformation. Therefore, the first supporting block 300 will not move. Only when the second supporting block 700 is pressed down into place and enters the accommodating chamber 311, the downward movement of the driving block 200 will reach the force that forces the third compression spring 330 to deform, thereby causing the driving block 200, the second supporting block 700 and the first supporting block 300 to move downward synchronously.

[0044] Reference Figures 5 to 9The sliding chamber 110 is in an upwardly expanding shape, and guide surfaces 120 are provided on both sides of the inner surface of the sliding chamber 110. The first slider 500 can slide up and down obliquely along the guide surface 120. The upper end of the first slider 500 is provided with a stopper 510 along the left and right directions. The stopper 510 is located on the side of the first slider 500 away from the guide surface 120. The stopper 510 extends in the horizontal direction. The driving block 200 is provided with a bending portion 620, and the bending portion 620 is recessed into the interior of the driving block 200. When the first supporting block 300 slides downward and drives the two first sliders 500 close to each other, the stopper 510 can press the sheet metal part 400 against the bending portion 620 to enable the sheet metal part 400 to complete the second bending.

[0045] like Figures 2 to 9 As shown, first vertical surfaces 320 are vertically provided on both sides of the first supporting block 300, and a second vertical surface 520 is provided on the side of the first slider 500 away from the abutting guide surface 120. During the first bending process of the sheet metal part 400, the first vertical surface 320 and the second vertical surface 520 are in contact with each other. The contact between the first vertical surface 320 and the second vertical surface 520 can provide guidance for the vertical movement of the first supporting block 300, thereby improving the stability of the structure and preventing the first slider 500 from sliding down during the first bending process. Figures 8 and 9 In the process of change, although Figure 8 In the state of the first slider 500, the first slider 500 is placed on the plane of the first supporting block 300 by gravity. However, when the driving block 200 continues to slide downward, the driving block 200 will drive the sheet metal part 400 to move downward synchronously. At this time, the sheet metal part 400 will be forced to deform at the position of the top 510 until it is Figure 9 In this state, the first supporting block 300 and the first sliding block 500 are completely moved to their positions and fit into each other to complete the second bending.

[0046] It should be noted that the end of the abutting portion 510 used to abut the sheet metal component 400 may be provided with a rounded corner.

[0047] Reference Figures 10 to 12 , the base 100 is provided with a pushing member 130 that slides in the vertical direction, and two pressing blocks 131 are provided on the pushing member 130. The pressing block 131 is located above the first sliding block 500 and can slide horizontally relative to the pushing member 130. The driving block 200 is provided with a fourth inclined surface 250, and the pressing block 131 is provided with a fifth inclined surface 132 parallel to the fourth inclined surface 250. After the pushing member 130 drives the pressing block 131 to slide downward until the fourth inclined surface 250 and the fifth inclined surface 132 are in contact with each other, the downward movement of the pushing member 130 can drive the two pressing blocks 131 to slide obliquely downward along the two fourth inclined surfaces 250 and move away from each other. When the two pressing blocks 131 move away from each other, the pressing block 131 pushes the end of the sheet metal part 400 horizontally and flattens the end of the sheet metal part 400 on the first sliding block 500 to Figure 1 The third bend of the sheet metal part 400 is completed at the third bend position 430. It is understood that conventional inverted trapezoidal sheet metal parts can also be bent only on the front two sides without the third bend. Furthermore, the pressing block 131 is suspended from the lower surface of the push member 130, meaning that the pressing block 131 has only the freedom to slide left and right relative to the push member 130.

[0048] It should be noted that the pushing member 130 may be driven by a driving source such as a cylinder or a motor, and the driving sources of the pushing member 130 and the driving block 200 may be different driving sources.

[0049] In an embodiment of the present invention, after the sheet metal part 400 completes the bending of the front two sides, the end of the sheet metal part 400 is tilted upward. By providing the pushing member 130 and the pressing block 131, the position of the sheet metal part 400 close to the end surface will be pressed down first to form a smaller arc bend without causing curling at the end surface of the sheet metal part 400; then, with the cooperation of the fourth inclined surface 250 and the fifth inclined surface 132, the pressing block 131 moves horizontally and pushes the end of the sheet metal part 400 laterally, so that the end of the sheet metal part 400 can naturally fit on the upper surface of the first slider 500, completing the third bending.

[0050] Reference Figures 10 to 12 The base 100 has two chutes 140, and the pressure block 131 is horizontally provided with a column 133. The columns 133 of the two pressure blocks 131 can slide along the two chutes 140 respectively. The chutes 140 include a vertical section 141 and an inclined section 142. The inclined direction of the inclined section 142 is parallel to the fourth inclined surface 250. The inclined section 142 of the chutes 140 on the left side of the driving block 200 gradually slopes downward from right to left, while the inclined section 142 of the chutes 140 on the right side of the driving block 200 gradually slopes downward from left to right. When the fourth inclined surface 250 and the fifth inclined surface 132 are in contact, the column 133 is located at the intersection of the vertical section 141 and the inclined section 142. The provision of the chutes 140 can assist the pressure blocks 131 in returning to their original position during the upward movement of the push member 130. It will be understood that in embodiments without chutes 140, the pressure blocks 131 can be reset by a horizontally arranged spring.

[0051] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. Air conditioner sheet metal continuous bending mechanism, characterized in that: include: A base, wherein a sliding chamber is downwardly opened on the upper surface of the base, the sliding chamber is in an upwardly expanding shape, the left and right sides of the inner surface of the sliding chamber are guide surfaces, and the base is provided with two slide grooves, the slide grooves including a vertical section and an inclined section; a driving block, slidably disposed on the base in a vertical direction, the driving block being located above the sliding chamber, the driving block being provided with a bent portion, the bent portion being recessed toward the interior of the driving block; a first supporting block, slidably disposed in a vertical direction in the middle of the sliding chamber, the first supporting block being capable of horizontally supporting the sheet metal part; a forming chamber being downwardly opened on the upper surface of the first supporting block, the forming chamber being in an inverted trapezoidal shape; when the driving block moves downward, the driving block presses the sheet metal part into the forming chamber and completes the first bending of the sheet metal part; the first supporting block is configured to slide downward synchronously with the driving block after the first bending of the sheet metal part; Two first sliders are provided in the sliding chamber and are located on the left and right sides of the first supporting block. The first sliders can slide up and down obliquely along the guide surface. An abutment portion is provided on the upper end of the first slider in the left and right directions. The abutment portion is located on the side of the first slider away from the guide surface. The abutment portion extends in the horizontal direction. When the first supporting block slides downward, the first supporting block drives the two first sliders to approach each other. When the first supporting block slides upward, the first supporting block drives the two first sliders to move away from each other. When the two first sliders approach each other, the abutment portion can press the sheet metal against the bending portion to enable the sheet metal to complete a second bending. The pushing member is slidably arranged on the base in the vertical direction, and two pressure blocks are provided on the pushing member, and the pressure block is located above the first sliding block and can slide horizontally relative to the pushing member, and the driving block is provided with a fourth inclined surface, and the pressure block is provided with a fifth inclined surface parallel to the fourth inclined surface, and the pressure block is horizontally provided with a column, and the columns of the two pressure blocks can slide along the two sliding grooves respectively, and the inclination direction of the inclined section is parallel to the fourth inclined surface, and the inclined section of the sliding groove on the left side of the driving block gradually tilts downward from right to left, and the driving The inclined section of the slide groove on the right side of the movable block gradually tilts downward from left to right. After the pushing member drives the pressure block to slide downward to a state where the fourth inclined surface is in contact with the fifth inclined surface, the column is located at the junction of the vertical section and the inclined section. The downward movement of the pushing member can drive the two pressure blocks to slide obliquely downward along the two fourth inclined surfaces and move away from each other. When the two pressure blocks move away from each other, the pressure block horizontally pushes the end of the sheet metal and flattens the end of the sheet metal onto the first slider to complete the third bending of the sheet metal.

2. The continuous bending mechanism for air conditioner sheet metal parts according to claim 1, characterized in that: It also includes two second sliders, which are symmetrically arranged on the left and right sides of the driving block. The second sliders slide in cooperation with the driving block. The driving block is configured to drive the two second sliders away from each other when sliding downward, and drive the two second sliders towards each other when sliding upward.

3. The continuous bending mechanism for air conditioner sheet metal parts according to claim 2, characterized in that: A first inclined surface and a second inclined surface are respectively provided on the left and right sides of the driving block, the first inclined surface gradually tilts downward from left to right, and the second inclined surface gradually tilts downward from right to left, and the two second sliders are both provided with a third inclined surface, and the two third inclined surfaces are respectively fitted with the first inclined surface and the second inclined surface, and the two second sliders can slide up and down obliquely along the first inclined surface and the second inclined surface respectively, and the driving block is provided with two guide columns, and the axial directions of the two guide columns are respectively parallel to the first inclined surface and the second inclined surface, and the two guide columns are both provided with a first compression spring, which can be extended and retracted along the axial direction of the guide column, and the two ends of the first compression spring are respectively connected to the driving block and the second slider.

4. The continuous bending mechanism for air conditioner sheet metal parts according to claim 1, characterized in that: A second supporting block is provided on the upper part of the first supporting block, and the second supporting block can slide between an initial position and an end position in a vertical direction. The upper surface of the second supporting block is flush with the upper surface of the first supporting block at the initial position, and a accommodating chamber is opened downward on the bottom surface of the forming chamber. In the process of the driving block pressing down the sheet metal part, the second supporting block always adheres to the lower surface of the sheet metal part and finally moves down into the accommodating chamber. When the second supporting block is located in the accommodating chamber, the second supporting block is in the end position and the upper surface of the second supporting block is flush with the lower surface of the forming chamber.

5. The continuous bending mechanism for air conditioner sheet metal parts according to claim 4, characterized in that: A second compression spring is provided between the second supporting block and the first supporting block, and a third compression spring is provided between the first supporting block and the base.

6. The continuous bending mechanism for air conditioner sheet metal parts according to claim 5, characterized in that: The force with which the second compression spring is forced to deform is smaller than the force with which the third compression spring is forced to deform.

7. The continuous bending mechanism for air conditioner sheet metal parts according to claim 1, characterized in that: First vertical surfaces are vertically provided on both sides of the first supporting block, and a second vertical surface is provided on the side of the first sliding block away from the abutting guide surface. During the first bending process of the sheet metal part, the first vertical surface fits into contact with the second vertical surface.

8. The continuous bending mechanism for air conditioner sheet metal parts according to claim 1, characterized in that: One end of the abutting portion for abutting the sheet metal part is provided with a rounded corner.

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