A continuous die, punch and processing method for protective box

Abstract

The application provides a continuous die for protective box production, a punch and a protective box processing method, and belongs to the technical field of molds. The continuous die comprises an upper die base and a lower die base. A front processing station, a bending station, a shaping station and a round rolling station are arranged between the upper die base and the lower die base. When the continuous die is used for protective box production, a feeding device feeds the plate into the continuous die, and the plate sequentially passes through the front processing station, the bending station, the shaping station and the round rolling station along the feeding direction, and the protective box is obtained. The continuous die integrates all production links of the protective box, can improve the production efficiency of the protective box, ensure the quality of the produced protective box and improve the production benefit of the enterprise.

Description

Technical Field

[0001] The present invention relates to the technical field of molds, and in particular to a continuous mold and a punching machine for producing a protection box, and a method for processing the protection box. Background Art

[0002] Products and parts produced using molds offer high production efficiency, enabling high-speed, high-volume production, saving raw materials, and enabling non-cutting processing. They also offer stable product quality and good interchangeability, as well as simple operation without high operator skills requirements. Among these advantages, continuous stamping dies are becoming increasingly popular. These are cold stamping dies that use a press to stamp raw material in a strip form, completing multiple stamping steps simultaneously on a single die using several different stations. Each time the die completes a stamping cycle, the material strip moves a fixed distance until the product is complete.

[0003] In some special situations, relays are equipped with protective boxes to reduce damage from external interference. Existing relay protective boxes are typically manufactured in a workshop using equipment that bends sheet metal multiple times. This production method is discontinuous between processing steps, resulting in low production efficiency. Furthermore, due to the disjointed nature of each step, the quality of the protective boxes produced cannot be guaranteed, resulting in a high rate of defective products. Summary of the Invention

[0004] In order to overcome the problems existing in the related art, one of the purposes of the present invention is to provide a continuous mold for the production of protective boxes. The continuous mold integrates various production links of the protective boxes, which can improve the production efficiency of the protective boxes, ensure the quality of the produced protective boxes, and improve the production benefits of the enterprise.

[0005] A continuous die for producing a protective box, comprising an upper die base and a lower die base, wherein a front processing station, a bending station, a shaping station and a rounding station are arranged between the upper die base and the lower die base;

[0006] When the continuous die is used to produce a protective box, the feeding device feeds the plate into the continuous die, and along the feeding direction, the plate passes through the pre-processing station, the bending station, the shaping station and the rolling station in sequence to obtain a protective box.

[0007] In a preferred technical solution of the present invention, a feed port and a discharge port are provided between the upper die base and the lower die base, and the front processing station, the bending station, the shaping station and the rolling station are sequentially provided between the feed port and the discharge port.

[0008] In a preferred technical solution of the present invention, the front processing station includes a primary punching station, a secondary punching station and a tapping station arranged in sequence along the feeding direction;

[0009] When the plate is conveyed to the primary punching station, a first side hole is punched out;

[0010] When the plate is conveyed to the secondary punching station, a second side hole is punched out;

[0011] When the plate is conveyed to the tapping station, the tapping machine processes connecting screw holes.

[0012] In a preferred technical solution of the present invention, the bending station includes a placement position, a lifting plate and a bending block. The placement position is used to place the plate to be processed; the lifting plate is arranged below the placement position, and the bending block is arranged on the lifting plate. The lifting plate rises upward to drive the bending block to rise and bend the plate.

[0013] In a preferred technical solution of the present invention, the lifting plate includes a base plate, a movable plate and a lifting drive device, the base plate is fixed on the lower mold base, the lifting drive device is fixed on the base plate, the movable plate is arranged above the base plate, and is driven to lift and lower by the lifting drive device.

[0014] In a preferred technical solution of the present invention, the bending block is arranged on the movable plate, and there are four bending blocks, which are arranged in a rectangular shape on the movable plate; four bending pieces are provided on the plate, and the bending block is raised to bend the bending pieces.

[0015] In a preferred technical solution of the present invention, the shaping station includes a first shaping station and a second shaping station sequentially arranged along the conveying direction;

[0016] The protection box includes a long side and a short side. The first shaping position is used to fold up the long side panels of the protection box to form the left and right walls of the protection box; the second shaping position is used to fold up the short side panels of the protection box to form the front and rear side walls of the protection box.

[0017] In a preferred technical solution of the present invention, the curling station includes a downward pressure block; the left side wall, right side wall, front side wall and rear side wall of the protective box are all provided with curling edges. When the protective box comes out of the second shaping station and is transported to the curling station, the downward pressure block presses the curling edges from top to bottom, so that the curling edges form curls on each side wall of the protective box.

[0018] A third object of the present invention is to provide a punching machine, comprising a main body, a feeding device provided on the main body, and a continuous die for producing a protective box as described above mounted on the main body; a primary punching machine, a secondary punching machine, a tapping machine, and a curling press machine are sequentially provided on the main body along the feeding direction of the feeding device;

[0019] The primary punching machine punches the plate once at the primary punching station; the secondary punching machine punches the plate twice at the secondary punching station; the tapping machine taps the plate at the tapping station; the curling press presses down onto the side wall of the protection box at the curling station, so that the curled edge of the side wall of the protection box forms a curl.

[0020] A third object of the present invention is to provide a method for processing a protective box, which is implemented based on the punching machine described above and includes the following steps:

[0021] Placing the plate on the feeding device, starting the feeding device to convey the plate to the primary punching station, and the primary punching machine punches the plate once;

[0022] The plate after the primary punching is transported to the secondary punching station, and the secondary punching machine performs secondary punching on the plate;

[0023] The plate after the secondary punching is transported to the tapping station, and the tapping machine taps the plate;

[0024] The tapped sheet is transported to the bending section for bending operation;

[0025] The bent sheet is conveyed to the first shaping station, where the long side panels of the sheet are folded up so that the long side panels form the left and right walls of the protective box;

[0026] The plate processed in the first shaping station is conveyed to the second shaping station, where the side panels of the short sides of the plate are folded so that the side panels of the short sides form the front side walls and the rear side walls of the protection box, thereby obtaining the box body structure of the protection box;

[0027] The box structure is transported to the curling station, and processed at the curling station so that the curled edge of the box body forms a curl, completing the protective box processing.

[0028] The beneficial effects of the present invention are:

[0029] The present invention provides a continuous die and a punch press for producing protective boxes. The continuous die includes an upper die base and a lower die base. A pre-processing station, a bending station, a shaping station, and a rolling station are provided between the upper die base and the lower die base. The continuous die is installed on the punch press, and a feeding device is provided on the punch press. When the continuous die is used to produce protective boxes, the feeding device feeds the plate into the continuous die, and makes the plate pass through the pre-processing station, the bending station, the shaping station, and the rolling station in sequence along the feeding direction. After the plate is processed at each processing station, it is fed out by the feeding device, and finally a protective box is obtained. The continuous die integrates the various production links of the protective box, which can improve the production efficiency of the protective box, and can avoid the defects of the existing technology in which the various production links are separated from each other, thereby ensuring the quality of the produced protective box and improving the production efficiency of the enterprise.

[0030] The present invention also provides a production method for a protective box based on the above-mentioned continuous die and punch press. The protective boxes produced by this method have high production efficiency and high yield rate, which is conducive to ensuring the production benefits of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional diagram of a continuous mold for producing a protective box provided by the present invention;

[0032] Figure 2 This is a three-dimensional diagram of a continuous die for producing a protective box provided by the present invention, excluding the upper die base;

[0033] Figure 3 It is a three-dimensional diagram of the bending station of the continuous die provided by the present invention;

[0034] Figure 4 It is a structural schematic diagram of the side surface of the bending station of the continuous die provided by the present invention;

[0035] Figure 5 It is a three-dimensional diagram of the first shaping position of the continuous mold provided by the present invention;

[0036] Figure 6 is a three-dimensional diagram of the protection box provided by the present invention;

[0037] Figure 7 It is a structural schematic diagram of the punch press provided by the present invention;

[0038] Figure 8 The figure is a flow chart of the protective box processing method provided by the present invention.

[0039] Reference numerals:

[0040] 2. Main body; 3. Protective box; 11. Upper die base; 12. Lower die base; 21. Primary punch; 22. Secondary punch; 23. Tapping machine; 24. Rolling press; 25. Feeding device; 22. Lower die base; 31. Left side wall; 32. Right side wall; 33. Front side wall; 34. Rear side wall; 35. Bending piece; 36. Rolling; 100. Front processing station; 110. Primary punch Workstation; 120, secondary punching station; 130, tapping station; 200, bending station; 210, lifting plate; 220, placement position; 230, bending block; 300, shaping station; 310, first shaping position; 320, second shaping position; 400, rolling station; 2101, bottom plate; 2102, movable plate; 2103, lifting drive device; 3101, bending pressure block. DETAILED DESCRIPTION

[0041] The preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete and to fully convey the scope of the present invention to those skilled in the art.

[0042] The terms used in this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The singular forms "a," "the," and "the" used in this invention and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0043] It should be understood that although the terms "first", "second", "third", etc. may be used to describe various information in the present invention, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0044] like Figures 1-6 As shown, a continuous die for producing a protective box claimed in the present application includes an upper die base 11 and a lower die base 12;

[0045] A front processing station 100, a bending station 200, a shaping station 300 and a curling station 400 are provided between the upper die base 11 and the lower die base 12;

[0046] When the continuous die is used to produce the protective box 3, the feeding device 25 feeds the plate into the continuous die, and makes the plate pass through the pre-processing station 100, the bending station 200, the shaping station 300 and the rolling station 400 in sequence along the feeding direction to obtain the protective box 3.

[0047] Specifically, a processing channel is provided between the upper die base 11 and the lower die base 12. The processing channel is provided with a feed port and a discharge port. The pre-processing station 100, the bending station 200, the shaping station 300, and the rolling station 400 are sequentially provided between the feed port and the discharge port. When the sheet metal passes through the pre-processing station 100, the sheet metal is pre-processed; when the sheet metal passes through the bending station 200, the sheet metal is bent; when the sheet metal passes through the shaping station 300 and the rolling station 400, the sheet metal is shaped and rolled, respectively. It should be noted that the continuous die to be protected in this application is used on a punching machine or other processing equipment, and the punching machine or other processing equipment is provided with a processing device that cooperates with it. For example, a pre-processing device is provided on the punching machine, and the pre-processing device corresponds to the pre-processing station 100 of the continuous die, so that the sheet metal can be pre-processed by the pre-processing device when it passes through the pre-processing station 100.

[0048] The above-mentioned continuous die for producing a protective box includes an upper die base 11 and a lower die base 12, and a front processing station 100, a bending station 200, a shaping station 300 and a rolling station 400 are arranged between the upper die base 11 and the lower die base 12. The continuous die is installed on a punching machine, and a feeding device 25 is provided on the punching machine. When the continuous die is used to produce a protective box 3, the feeding device 25 feeds the plate into the continuous die, and makes the plate pass through the front processing station 100, the bending station 200, the shaping station 300 and the rolling station 400 in sequence along the feeding direction. After the plate is processed at each processing station, it is sent out by the feeding device 25, and finally the protective box 3 is obtained. The continuous die integrates the various production links of the protective box, which can improve the production efficiency of the protective box 3, and can avoid the defects of the existing technology in which the various production links are separated from each other, thereby ensuring the quality of the produced protective box 3 and improving the production efficiency of the enterprise.

[0049] In a specific embodiment, the front processing station 100 includes a primary punching station 110, a secondary punching station 120 and a tapping station 130 arranged in sequence along the feeding direction;

[0050] When the plate is conveyed to the primary punching station 110, a first side hole is punched out;

[0051] When the plate is conveyed to the secondary punching station 120, a second side hole is punched out;

[0052] When the plate is conveyed to the tapping station 130 , the tapping machine 23 processes connecting screw holes.

[0053] More specifically, the progressive die is mounted on a punching machine, which is equipped with a primary punching machine 21 and a secondary punching machine 22 for punching. The punching machine is also equipped with a tapping machine 23 for tapping. During the specific processing of the protective box 3, the sheet material is a long strip. After the primary and secondary punching, the sheet material can be bent to form the sidewalls.

[0054] Furthermore, the bending station 200 includes a placement position 220, a lifting plate 210 and a bending block 230. The placement position 220 is used to place the plate to be processed; the lifting plate 210 is arranged below the placement position 220, and the bending block 230 is arranged on the lifting plate 210. The lifting plate 210 rises upward to drive the bending block 230 to rise and bend the plate.

[0055] More specifically, the lifting plate 210 includes a base plate 2101, a movable plate 2102 and a lifting drive device 2103. The base plate 2101 is fixed on the lower mold base 12, the lifting drive device 2103 is fixed on the base plate 2101, and the movable plate 2102 is arranged above the base plate 2101 and is driven to rise and fall by the lifting drive device 2103.

[0056] The base plate 2101 is fixed to the lower die base 12 by screws, and the lifting drive device 2103 can be a cylinder, which is activated to drive the movable plate 2102 to move. Since the bending block 230 is fixed to the movable plate 2102, when the movable plate 2102 moves, the plate on the placement position 220 is stationary, so there will be relative movement between the movable plate 2102 and the plate in the vertical direction. In actual application, the bending block 230 is set on the movable plate 2102 and protrudes from the surface of the movable plate 2102. The bending block 230 will move upward to squeeze the plate on the placement position 220, causing the plate to bend.

[0057] In a more specific embodiment, four bending blocks 230 are arranged in a rectangle on the moving plate 2102; the plate is provided with four bending pieces 35, and the bending blocks 230 are raised to bend the bending pieces 35. When the plate is placed on the placing position 220, the positions of the bending pieces 35 correspond to the positions of the bending blocks 230, and the bending blocks 230 are located below the bending pieces 35. Therefore, when the bending blocks 230 are moved upward, the bending pieces 35 are pressed, so that the bending pieces 35 are bent to form the required structure. It should be noted that the bending pieces 35 and the plate are provided with preset bending marks, and when the bending blocks 230 press the bending pieces 35 upward, the bending pieces 35 are bent along the bending marks.

[0058] Further, the shaping station 300 comprises a first shaping position 310 and a second shaping position 320 arranged in sequence along the conveying direction;

[0059] The protection box 3 comprises long sides and short sides, the first shaping position 310 is used to fold the long side side plates of the protection box 3 to form the left side wall 31 and the right side wall 32 of the protection box 3; the second shaping position 320 is used to fold the short side side plates of the protection box 3 to form the front side wall 33 and the rear side wall 34 of the protection box 3.

[0060] The working principles of the first shaping position 310 and the second shaping position 320 are similar. The first shaping position 310 and the second shaping position 320 are both provided with a work position for placing the plate. It should be noted that the plate is fixed in the work position, and the fixing of the plate can be realized by the components on the upper die seat 11. The first shaping position 310 and the second shaping position 320 are provided with bending pressing blocks 3101 on both sides which can be raised and lowered. When the plate is located in the first shaping position 310, the bending pressing blocks 3101 located on both sides of the long side of the plate are raised, so that the long side of the plate is folded to form the left side wall 31 and the right side wall 32 of the protection box 3. Similarly, when the plate is located in the second shaping position 320, the bending pressing blocks 3101 located on both sides of the short side of the plate are raised, so that the short side of the plate is folded to form the front side wall 33 and the rear side wall 34 of the protection box 3.

[0061] In a more specific embodiment, the curling station 400 includes a downward pressing block; the left side wall 31, the right side wall 32, the front side wall 33, and the rear side wall 34 of the protective box 3 are all provided with curling edges. When the protective box 3 comes out of the second shaping station 320 and is transported to the curling station 400, the downward pressing block presses the curling edges from top to bottom, so that the curling edges form curls 36 on each side wall of the protective box 3. The curling edges on each side wall of the protective box 3 are all located at the edge of each side wall. After the protective box 3 is shaped by the second shaping station 320, each curling edge is located at the top of each side wall of the protective box 3 in the vertical direction. Therefore, when the downward pressing block presses downward, the curling edges will bend to form curls 36. The curling edges 36 are convenient for connecting the protective box 3 with other components, so that the protective box 3 does not need to be welded when connected with other components, which helps to reduce costs.

[0062] like Figure 7 As shown, the present invention further provides a punching machine, which includes a main body 2, on which a feeding device 25 is provided. The main body 2 is equipped with the above-mentioned continuous die for producing protective boxes; the main body 2 is provided with a primary punching machine 21, a secondary punching machine 22, a tapping machine 23, and a curling press 24 in sequence along the feeding direction of the feeding device 25. The curling press 24 is provided with a downward pressing block, which drives the downward pressing block to move in the vertical direction to achieve curling processing of the plate;

[0063] The primary punching machine 21 punches the plate once at the primary punching station 110; the secondary punching machine 22 punches the plate twice at the secondary punching station 120; the tapping machine 23 taps the plate at the tapping station 130; the curling press 24 presses down onto the side wall of the protection box 3 at the curling station 400, so that the curled edge of the side wall of the protection box 3 forms a curl 36.

[0064] The punching machine is provided with a station for placing the continuous die. When the continuous die is placed on the station, the primary punching machine 21 corresponds to the primary punching station 110, the secondary punching machine 22 corresponds to the secondary punching station 120, the tapping machine 23 corresponds to the tapping station 130, and the curling press 24 corresponds to the curling station 400. By using the punching machine in conjunction with the above-mentioned continuous die, the various steps of the protective box 3 can be continuously processed, thereby improving the production efficiency of the protective box 3.

[0065] like Figure 8 As shown, the present invention also provides a protection box processing method, which is implemented based on the punching machine as described above, and includes the following steps:

[0066] S100, place the plate on the feeding device 25, start the feeding device 25, and transport the plate to the first punching station 110, and the first punching machine 21 punches the plate once;

[0067] S200, transport the plate after the first punching to the second punching station 120, and the second punching machine 22 punches the plate twice;

[0068] S300, transport the plate after the second punching to the tapping station 130, and the tapping machine 23 taps the plate; tapping is to tap the required screw holes on the plate.

[0069] S400, transport the plate after tapping to the bending part for bending operation; more specifically, the bending operation is to bend the bending piece 35 on the plate along the bending mark.

[0070] S500, transport the plate after bending to the first shaping station 310, and the side plate of the long edge of the plate is folded in the first shaping station 310, so that the long edge side plate forms the left side wall 31 and the right side wall 32 of the protection box 3.

[0071] S600, transport the plate processed in the first shaping station 310 to the second shaping station 320, and the side plate of the short edge of the plate is folded in the second shaping station 320, so that the short edge side plate forms the front side wall 33 and the rear side wall 34 of the protection box 3, and the box body structure of the protection box 3 is obtained; it should be noted that "front, back, left and right" here is defined with respect to the feeding direction of the feeding device 25. More specifically, the left side wall 31 of the protection box 3 is close to the inlet, and the right side wall 32 of the protection box 3 is close to the outlet.

[0072] S700, transport the box body structure to the rounding station 400, and process the box body structure in the rounding station 400, so that the edge of the box body is rounded to form the rounding 36, and the processing of the protection box 3 is completed.

[0073] The protection box 3 produced by the above method has high production efficiency and high yield, which is beneficial to ensure the production benefit of the enterprise.

[0074] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be subsequently positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used herein are interpreted accordingly.

[0075] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this application. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can be subject to various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A continuous die for producing a protective box, comprising an upper die base and a lower die base, characterized in that: A front processing station, a bending station, a shaping station and a rolling station are provided between the upper die base and the lower die base; When the continuous die is used to produce the protective box, the feeding device feeds the plate into the continuous die, and the plate is sequentially passed through the pre-processing station, the bending station, the shaping station and the rolling station along the feeding direction to obtain the protective box; The shaping station includes a first shaping station and a second shaping station arranged in sequence along the conveying direction; The protection box includes a long side and a short side. The first shaping position is used to fold up the long side panels of the protection box to form the left side wall and the right side wall of the protection box. The second shaping position is used to fold up the short side panels of the protection box to form the front side wall and the rear side wall of the protection box. The curling station includes a downward pressing block; The left side wall, right side wall, front side wall and rear side wall of the protective box are all provided with curling edges. When the protective box comes out of the second shaping position and is transported to the curling station, the downward pressing block presses the curling edges from top to bottom, so that the curling edges form curls on each side wall of the protective box.

2. A continuous mold for producing a protective box according to claim 1, characterized in that: A feed port and a discharge port are provided between the upper die base and the lower die base, and the front processing station, the bending station, the shaping station and the rolling station are sequentially provided between the feed port and the discharge port.

3. The continuous mold for producing a protective box according to claim 2, characterized in that: The front processing station includes a primary punching station, a secondary punching station and a tapping station arranged in sequence along the feeding direction; When the plate is conveyed to the primary punching station, a first side hole is punched out; When the plate is conveyed to the secondary punching station, a second side hole is punched out; When the plate is conveyed to the tapping station, the tapping machine processes connecting screw holes.

4. The continuous mold for producing a protective box according to claim 1, characterized in that: The bending station includes a placement position, a lifting plate and a bending block. The placement position is used to place the plate to be processed; the lifting plate is arranged below the placement position, and the bending block is arranged on the lifting plate. The lifting plate rises upward to drive the bending block to rise and bend the plate.

5. The continuous mold for producing a protective box according to claim 4, characterized in that: The lifting plate includes a base plate, a movable plate and a lifting drive device. The base plate is fixed on the lower mold base, the lifting drive device is fixed on the base plate, and the movable plate is arranged above the base plate and is driven to rise and fall by the lifting drive device.

6. The continuous mold for producing a protective box according to claim 5, characterized in that: The bending block is arranged on the movable plate, and there are four bending blocks, which are arranged in a rectangular shape on the movable plate; four bending pieces are provided on the plate, and the bending block is raised to bend the bending pieces.

7. A punch press, comprising a main body provided with a feeding device, characterized in that: The main body is provided with a continuous die for producing a protective box as claimed in claim 6; the main body is provided with a primary punching machine, a secondary punching machine, a tapping machine and a curling press machine in sequence along the feeding direction of the feeding device; The primary punching machine punches the plate once at the primary punching station; the secondary punching machine punches the plate twice at the secondary punching station; the tapping machine taps the plate at the tapping station; the curling press presses down onto the side wall of the protective box at the curling station, so that the curled edge of the side wall of the protective box forms a curl.

8. A method for processing a protective box, characterized in that: The protection box processing method is implemented based on the punching machine according to claim 7, and the protection box processing method includes the following steps: Placing the plate on the feeding device, starting the feeding device to convey the plate to the primary punching station, and the primary punching machine punches the plate once; The plate after the primary punching is transported to the secondary punching station, and the secondary punching machine performs secondary punching on the plate; The plate after the secondary punching is transported to the tapping station, and the tapping machine taps the plate; The tapped sheet is transported to the bending section for bending operation; The bent sheet is conveyed to the first shaping station, where the long side panels of the sheet are folded up so that the long side panels form the left and right walls of the protective box; The plate processed in the first shaping station is conveyed to the second shaping station, where the side panels of the short sides of the plate are folded so that the side panels of the short sides form the front side walls and the rear side walls of the protection box, thereby obtaining the box body structure of the protection box; The box structure is transported to the curling station, and the curling press processes the box structure so that the curled edge of the box body forms a curl, completing the protection box processing.

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