Stamping device for stainless steel car window decoration strip production

Abstract

The invention discloses a stamping device for stainless steel car window decoration strip production, and relates to the technical field of automobile part production, the stamping device comprises a feeding mechanism, a guide mechanism, a stamping mechanism and a flanging mechanism, and the stamping mechanism comprises an outer frame located between two vertical plates. One end of a workpiece can be punched, cut off and flanged at a single station, meanwhile, through the arranged outer frame, when the punching mechanism moves, protrusions, caused by stress z during punching and cut off, of the workpiece can be smoothed, and the machining precision of the workpiece is improved. Therefore, excessive abrasion between the workpiece and the flanging die and between the workpiece and the outer frame due to the fact that the cut-off part of the workpiece protrudes in the flanging process is avoided, gaps generated after the workpiece is flanged are the same in size through cooperation between the flanging die and the outer frame, and the problem that a buckle cannot be embedded or looses when installed is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts production, in particular to a stamping device for producing stainless steel window trim strips. Background Art

[0002] Window molding is a decorative and windshielding accessory installed around the edges of car windows. It's primarily made of stainless steel, aluminum alloy, and chrome-plated plastic. The production process for stainless steel window moldings involves cutting, stamping, bending, surface treatment, and lamination. Installation involves installing clips within the strips, which then snap into pre-set slots or holes in the window frame.

[0003] In order to install the clips in the window trim, notches for the clips need to be punched out at both ends of the window trim, and both ends need to be punched and bent inward to form a retracted structure. When processing a workpiece, the existing stamping die needs to frequently move the workpiece to the next processing station. Due to the thin thickness of the window trim, different parts of the workpiece will deflect at different angles when moving, causing the workpiece to deform (such as twisting and bending). This will cause the shape of the trim to not meet the actual data requirements after stamping and flanging, resulting in the appearance of defective products. In addition, some trims use a stainless steel plastic-coated structure. By embedding the outer stainless steel layer on the inner engineering plastic frame, the rigidity is improved while the texture is improved and the cost is reduced. However, this stainless steel layer is more susceptible to the torsion caused by movement, resulting in an increase in the defective rate. Summary of the Invention

[0004] The purpose of the present invention is to provide a stamping device for producing stainless steel window trim strips to solve the deficiencies in the above-mentioned prior art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a stamping device for producing stainless steel window trim, comprising a feeding mechanism, a workpiece, and a frame, wherein the feeding mechanism is fixed to one side of the frame and is used to transport the workpiece, and further comprising: A driving part, comprising a bracket and a horizontal frame fixed on the frame, wherein a downward pressure cylinder and a flattening cylinder are fixed on the bracket; The guide mechanism comprises vertical plates symmetrically fixed to the top surface of the horizontal frame, the side surfaces of the vertical plates are provided with guide slots, and the guide slots are slidably connected to the connecting blocks; The punching mechanism includes an outer frame fixedly connected between two connecting blocks, the outer frame abutting the top surface of the workpiece, symmetrical punching blocks slidably connected inside the outer frame, a smoothing plate hingedly connected to the inner side surface of the outer frame facing the forward direction, and a sliding column slidably connected to the bottom surface of the outer frame. When the sliding column moves upward, the smoothing plate is driven by the transmission structure to rotate from the default vertical state to the horizontal state; The flanging mechanism comprises a flanging cylinder and a flanging die located below the processed end of the workpiece.

[0006] Preferably, the outer frame consists of a front section, a middle section and a rear section. When the connecting block is in the vertical section of the guide slot, the rear section and the sliding column of the outer frame do not contact the workpiece. The smoothing plate is located on the inner side of the rear section facing the front section. The length of the rear section of the outer frame is equal to the length of the notch of the workpiece.

[0007] Preferably, the feeding mechanism consists of a fixed frame and a sliding frame slidably connected to the fixed frame, the workpiece is installed in the sliding frame, a front push rod is fixed inside the sliding frame to push the workpiece forward, and a bracket aligned with the sliding frame is fixed on the top surface of the horizontal frame.

[0008] Preferably, one side of the vertical plate is slidably connected to a slide, the connecting block is slidably connected to the slide, a spring is sleeved on the slide to push the connecting block to move upward, and the connecting block moves in an "L" shape along the guide slot.

[0009] Preferably, the top surface of the horizontal frame is fixedly connected to the vertical frame, and the side surface of the vertical frame is fixedly connected to a push-pull rod with a telescopic end facing the connecting block, and the push-pull rod drives the connecting block to move in the horizontal direction.

[0010] Preferably, the telescopic end of the push-pull rod is fixedly connected to a hook column with a notch, the connecting block is provided with a round hole on the side facing the push-pull rod, the vertical plate is provided with a groove on the side facing the connecting block, and a slide driven by a spring to slide outward is slidably connected inside the connecting block.

[0011] Preferably, when the connecting block is at a right-angle turn in the guide slot, one end of the slide extends into the groove, and after the push-pull rod pushes the connecting block forward and the slide disengages from the groove, the slide engages with the notch on the hook column to relatively fix the connecting block and the telescopic end of the push-pull rod.

[0012] Preferably, the outer side of the sliding column is fixedly sleeved with a connecting frame, the outer frame is fixedly connected with a rope tube, a rope is arranged in the rope tube, one end of the rotating shaft of the smoothing plate is fixedly connected to the coaxial column, the outer side surface of the coaxial column is provided with a rotating slide groove, and the outer frame is slidably connected with a sliding column block that slides along the rotating axis of the smoothing plate, and the side of the sliding column facing the coaxial column is provided with a sliding column with one end located in the rotating slide groove, the two ends of the rope are respectively fixedly connected to one side of the sliding column block and the bottom surface of the connecting frame, and a torsion spring is sleeved on the rotating shaft of the smoothing plate to reset it.

[0013] Preferably, a push block is slidably connected to the outer frame, and its bottom abuts against the punching block. When the push block moves downward, the punching block slides outward and punches the workpiece. A scraper is fixedly connected to the outer frame, and the scraper is located on the outer edge line of the workpiece after it is punched. The push block is pushed by the downward pressure cylinder to move downward, and the push block is driven by the elastic member to have a tendency to move upward.

[0014] Preferably, the telescopic end of the flanging cylinder is fixedly connected to a support frame, the top surface of the support frame is hinged with a support plate, the support plate abuts against the bottom surface of the workpiece, and the support frame is fixedly connected to the flanging die.

[0015] In the above technical solution, the present invention provides a stamping device for the production of stainless steel window trim strips, which enables the present invention to perform stamping and cutting and flanging processing on one end of the workpiece at a single station. At the same time, through the provision of an external frame, when the stamping mechanism moves, the bulge of the workpiece caused by the stress during stamping and cutting can be smoothed, thereby avoiding the bulge of the cut part of the workpiece during flanging, which causes excessive wear between the flanging die and the outer frame. Through the cooperation between the flanging die and the outer frame, the notch size of the workpiece after flanging is the same, avoiding the problem of being unable to be embedded or loose when installing the fastener. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the feeding mechanism of the present invention after conveying the workpiece; Figure 3 Schematic diagram of the driving part structure of the present invention; Figure 4 Schematic diagram of the internal structure of the driving part of the present invention; Figure 5 It is a schematic diagram of the single-side structure of the guide mechanism of the present invention; Figure 6 It is a schematic cross-sectional structural diagram of a part of the guide mechanism of the present invention; Figure 7 It is a schematic structural diagram of the punching mechanism of the present invention; Figure 8 It is a schematic cross-sectional structural diagram of the punching mechanism of the present invention; Figure 9 This is a schematic diagram of the punching mechanism of the present invention from the rear side view with the rear portion removed; Figure 10 This is a schematic structural diagram of a transmission device for driving the smoothing plate to rotate according to the present invention; Figure 11 For the present invention Figure 10 Enlarged view of point A in the middle; Figure 12 For the present invention Figure 10 Schematic diagram of the structure from the middle and lower side; Figure 13 It is a structural schematic diagram of the flanging mechanism of the present invention; Figure 14 This is a schematic diagram of the overall structure of the workpiece after stamping of the present invention; Figure 15 It is a structural schematic diagram of the workpiece during processing in the present invention.

[0018] Explanation of the accompanying drawings: 1. feeding mechanism; 11. fixed frame; 12. sliding frame; 13. front push rod; 2. workpiece; 3. frame; 4. driving part; 41. bracket; 42. horizontal frame; 43. bracket; 44. vertical frame; 45. pressing cylinder; 46. flattening cylinder; 5. guiding mechanism; 51. vertical plate; 52. sliding frame; 53. guide chute; 54. connecting block; 55. push-pull rod; 56. groove; 57. slide plate; 58. circular hole; 6. stamping mechanism; 61. outer frame; 62. stamping block; 63. smoothing plate; 64. sliding column; 641. connecting frame; 65. rope tube; 66. coaxial column; 661. rotating chute; 662. sliding column block; 67. push block; 68. scraper; 7. flanging mechanism; 71. flanging cylinder; 72. flanging die; 73. supporting frame; 74. supporting plate. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 15 As shown, an embodiment of the present invention provides a stamping device for producing stainless steel window trim, comprising a feeding mechanism 1, a workpiece 2, and a frame 3. The feeding mechanism 1 is fixed to one side of the frame 3 and is used to convey the workpiece 2. The device also includes: The driving part 4 includes a bracket 41 and a horizontal bracket 42 fixed on the frame 3. A downward pressing cylinder 45 and a flattening cylinder 46 are fixed on the bracket 41; The guide mechanism 5 includes a vertical plate 51 symmetrically fixed to the top surface of the horizontal frame 42. A guide slot 53 is provided on the side of the vertical plate 51. A connecting block 54 is slidably connected to the guide slot 53. The punching mechanism 6 includes an outer frame 61 fixedly connected between the two connecting blocks 54. The outer frame 61 abuts against the top surface of the workpiece 2. Symmetrical punching blocks 62 are slidably connected to the outer frame 61. A smoothing plate 63 is hingedly connected to the inner side of the outer frame 61 facing the forward direction. A sliding column 64 is slidably connected to the bottom surface of the outer frame 61. When the sliding column 64 moves upward, the smoothing plate 63 is driven by the transmission structure to rotate from the default vertical state to the horizontal state. The flanging mechanism 7 includes a flanging cylinder 71 and a flanging die 72 located below the processed end of the workpiece 2 .

[0021] exist Figure 15 The workpiece 2 shown in FIG. 1 is in a state where one end has been punched out and the other end has been punched out and flanging.

[0022] In the present invention, the length of the punching block 62 is greater than the length of the material to be removed from the workpiece 2. In the process of punching and removing the excess material on both sides of the workpiece 2, there will be problems such as uneven shearing force, which will cause the cut portion of the workpiece 2 near the end after punching to bulge and other bending deformations. This will cause the upturned end of the workpiece 2 to directly abut against the inner side of the outer frame 61 when the punching mechanism 6 is pushed forward after the punching is completed, causing the front end of the workpiece 2 to be abutted by the moving punching mechanism 6 and folded, making it impossible to perform the subsequent flanging process. By setting the smoothing plate 63, as the punching mechanism 6 is pushed forward, the sliding column 64 It moves to the stop block of the flanging mechanism 7 for limiting the workpiece 2, thereby moving the sliding column 64 upward, and then rotating the smoothing plate 63 in the outer frame 61 through hydraulic driving. When the smoothing plate 63 rotates and contacts the raised part of the workpiece 2 caused by the stamping and cutting, the raised part will be pressed downward, and the raised part will be pushed outward through cooperation with the punching block 62, so that the front end of the workpiece 2 is flatly attached to the bracket 43, which not only avoids direct contact between the stamping mechanism 6 and the end of the workpiece 2 when it continues to move forward, but also facilitates the subsequent flanging process and avoids excessive wear of the flanging die 72 due to bending of the front end of the workpiece 2.

[0023] Moreover, when the workpiece 2 is punched out and the flanging is completed, the flanging mechanism 7 is first reset, and then the push-pull rod 55 is controlled to retract and the punching mechanism 6 is pulled back. At this time, since the workpiece 2 has been flanging, the punching mechanism 6 will drive the workpiece 2 to move together, thereby avoiding the slight deformation of the workpiece 2 when it is adsorbed by the electromagnet. After the material rebounds after power is cut off, the workpiece 2 is tightly attached to the sliding frame 12, which increases the difficulty of separation.

[0024] By setting up the stamping mechanism 6 and the flanging mechanism 7, the workpiece 2 can be processed at one workstation, avoiding the need for the existing stamping production mold to frequently move the workpiece 2 when forming the workpiece 2, causing the workpiece 2 to undergo twisting, bending and other deformations, and further causing the workpiece 2 to be unable to be accurately installed on the car window, affecting the aesthetic effect of the car window trim.

[0025] In this embodiment, the outer frame 61 is composed of a front section, a middle section and a rear section. When the connecting block 54 is in the vertical section of the guide groove 53, the rear section of the outer frame 61 and the sliding column 64 do not contact the workpiece 2. The smoothing plate 63 is located on the inner side of the rear section facing the front section. The length of the rear section of the outer frame 61 is equal to the length of the notch of the workpiece 2.

[0026] After the workpiece 2 is punched and cut, as the outer frame 61 moves forward, when the inner side surface of the rear section of the outer frame 61 abuts against one end of the bracket 43, the outer frame 61 cannot move further. At this time, after driving the flanging mechanism 7 to work, the flanging die 72 and the outer frame 61 cooperate and extrude to make the gap reserved after the workpiece 2 is flanging the same length as the rear section of the outer frame 61, thereby avoiding the different flanging lengths of the workpiece 2 during the flanging process, resulting in different gap widths, and avoiding the gap width being too small, resulting in the fastener being unable to slide into the workpiece 2, or the gap width being too large, resulting in the fastener being scratched into the workpiece 2 and then detached from the workpiece 2 due to bumps during transportation.

[0027] In this embodiment, the feeding mechanism 1 is composed of a fixed frame 11 and a sliding frame 12 slidably connected to the fixed frame 11. The workpiece 2 is installed in the sliding frame 12. A front push rod 13 is fixed inside the sliding frame 12 to push the workpiece 2 forward. The top surface of the horizontal frame 42 is fixed with a bracket 43 aligned with the sliding frame 12.

[0028] By placing the workpiece 2 to be processed on the sliding frame 12 and controlling the sliding frame 12 to move forward so that the front end of the workpiece 2 enters under the stamping mechanism 6, the subsequent stamping and flanging processes are carried out. The front push rod 13 is used to make the front end of the workpiece 2 rest against the limit block of the support plate 74, ensuring that the workpiece 2 can be cut off by the stamping mechanism 6 with a sufficient length of material, and avoiding the occurrence of insufficient length during flanging and resulting in the processing of defective products. Secondly, by arranging an electromagnet on the sliding frame 12 to fix the workpiece 2 on the sliding frame 12, it is ensured that after the loading of the workpiece 2 is completed, the stamping mechanism 6 will not drive the workpiece 2 to move when it moves.

[0029] In this embodiment, a slide 52 is slidably connected to one side of the vertical plate 51, and a connecting block 54 is slidably connected to the slide 52. A spring is provided on the slide 52 to push the connecting block 54 to move upward, and the connecting block 54 moves in an "L" shape along the guide groove 53; the top surface of the horizontal frame 42 is fixedly connected to the vertical frame 44, and the side of the vertical frame 44 is fixedly connected to a push-pull rod 55 with the telescopic end facing the connecting block 54, and the push-pull rod 55 drives the connecting block 54 to move in the horizontal direction.

[0030] Under the guiding limit action of the guide slot 53, the connecting block 54 is pushed downward by the pressing cylinder 45 together with the punching mechanism 6, and reaches the bottom end of the vertical part of the guide slot 53. At this time, the punching mechanism 6 punches and cuts the workpiece 2, and then controls the telescopic end of the push-pull rod 55 to extend, thereby pushing the connecting block 54 to move along the horizontal part of the guide slot 53, so that the punching mechanism 6 moves together. The locking structure provided in the connecting block 54 makes the connecting block 54 return as the push-pull rod 55 retracts after being pushed forward by the push-pull rod 55. When the connecting block 54 reaches the right-angle turn of the guide slot 53, the locking structure makes The push-pull rod 55 is separated from the connecting block 54, so that the connecting block 54 can be lifted up by the spring arranged underneath it, thereby separating the stamping mechanism 6 from the workpiece 2. At this time, it is only necessary to control the return of the sliding frame 12 to make the front end of the workpiece 2 leave the driving part 4, so as to facilitate the removal of the processed workpiece 2. In the entire processing flow of the workpiece 2, it is only necessary to place the workpiece 2 on the sliding frame 12 and push the workpiece 2 into the processing position by the front push rod 13, and then fix the workpiece 2 on the sliding frame 12, avoiding the problem of frequent movement of the workpiece 2 when using a multi-station stamping die to process the workpiece 2 in the existing equipment, resulting in deformation of the workpiece 2.

[0031] In this embodiment, the telescopic end of the push-pull rod 55 is fixedly connected to a hook column with a notch, a circular hole 58 is opened on the side of the connecting block 54 facing the push-pull rod 55, and a groove 56 is opened on the side of the vertical plate 51 facing the connecting block 54. A slide plate 57 driven by a spring to slide outward is slidably connected in the connecting block 54; when the connecting block 54 is at a right-angle turn in the guide slot 53, one end of the slide plate 57 extends into the groove 56, and after the push-pull rod 55 pushes the connecting block 54 forward and the slide plate 57 disengages from the groove 56, the slide plate 57 engages with the notch on the hook column to fix the connecting block 54 and the telescopic end of the push-pull rod 55 relatively.

[0032] like Figure 5 and Figure 6 As shown, through the cooperation between the hook column at the front end of the push-pull rod 55 and the slide plate 57, as the hook column is inserted into the circular hole 58, the front end of the hook column abuts against the connecting block 54. After the telescopic end of the push-pull rod 55 is extended, the connecting block 54 is pushed to move. At this time, the outer frame 61 of the stamping mechanism 6 is pushed together, thereby moving the stamping mechanism 6.

[0033] In this embodiment, the outer side of the sliding column 64 is fixedly sleeved with a connecting frame 641, and a rope tube 65 is fixedly connected to the inner side of the outer frame 61. A rope is arranged in the rope tube 65, and one end of the rotating shaft of the caressing plate 63 is fixedly connected to the coaxial column 66. The outer side surface of the coaxial column 66 is provided with a rotating groove 661. A sliding column block 662 that slides along the rotating axis of the caressing plate 63 is slidably connected to the inner side of the outer frame 61, and a sliding column with one end located in the rotating groove 661 is provided on the side of the sliding column 662 facing the coaxial column 66. The two ends of the rope are respectively fixedly connected to one side of the sliding column block 662 and the bottom surface of the connecting frame 641, and a torsion spring is sleeved on the rotating shaft of the caressing plate 63 to reset it.

[0034] The rope in the rope tube 65 is an inelastic steel rope, and a roller is provided inside the rope tube 65 to reduce friction between the rope and the inner wall of the rope tube 65 .

[0035] After the punching and cutting is completed, the bottom of the sliding column 64 is now in contact with the support plate 74, and the front end of the workpiece 2 does not contact the rear section of the outer frame 61. At this time, after the punching block 62 returns, since the length of the punching block 62 is less than the single side length of the workpiece 2, the part of the workpiece 2 not pressed by the punching block 62 will be slightly bent due to the stress generated during punching (for example, when the edge of the workpiece 2 near the rear of the outer frame 61 that is punched and cut appears slightly upturned or concave). Since the rear part of the outer frame 61 does not contact the workpiece 2 when it is not pushed in the horizontal direction, after the outer frame 61 is pushed, the deformed end of the workpiece 2 will directly abut against the rear end face of the outer frame 61, thereby causing the end of the workpiece 2 to be squeezed, folded and deformed, resulting in the workpiece 2 being a defective product after the flanging process.

[0036] At this time, through the provided sliding column 64, when the outer frame 61 is pushed to move, the sliding column 64 moves forward with the movement of the outer frame 61, and then the bottom of the sliding column 64 will contact the stopper provided on the top surface of the support plate 74 for limiting the position of the workpiece 2, thereby sliding upward due to the obstruction of the stopper. When the sliding column 64 slides upward, the connecting frame 641 is driven to move upward together, thereby pulling the rope in the rope tube 65. At this time, the sliding column block 662 connected to the other end of the rope is pulled toward one end of the rope tube 65, and under the action of the sliding column connected to the side of the sliding column block 662, as the sliding column block 662 moves, it drives the coaxial column 66 to rotate by rotating the slide groove 661, thereby rotating the smoothing plate 63 attached to the rear of the outer frame 61 until it is in contact with the workpiece 2, thereby flattening the slight protrusions and depressions on the workpiece 2, thereby preventing the end of the workpiece 2 from abutting against the rear of the outer frame 61, causing the end of the workpiece 2 to be wrinkled and scrapped.

[0037] In this embodiment, a push block 67 is slidably connected to the outer frame 61, and its bottom abuts against the punching block 62. When the push block 67 moves downward, the punching block 62 slides outward and punches the workpiece 2. A scraper 68 is fixedly connected to the outer frame 61. The scraper 68 is located on the outer edge line of the workpiece 2 after it is punched. The push block 67 is pushed downward by the downward pressure cylinder 45, and the push block 67 has a tendency to move upward driven by the elastic member.

[0038] By setting a scraper 68 embedded in the outer frame 61, as the stamping mechanism 6 is pushed forward by the push-pull rod 55, the scraper 68 slides on the outer edge of the workpiece 2, thereby flattening and scraping off the burrs generated on the workpiece 2 during the stamping and cutting process, ensuring that during the process of picking up and transporting the stamped workpiece 2, the surface of the workpiece 2 will not leave scratches that cannot be removed in the subsequent surface treatment process due to friction with the burrs. At the same time, it also avoids the problem of the protective film being scratched by the burrs after the lamination is completed, and also avoids the burrs scratching the vehicle paint when the staff are installing the window trim.

[0039] In this embodiment, the telescopic end of the flanging cylinder 71 is fixedly connected to a support frame 73 , the top surface of the support frame 73 is hinged with a support plate 74 , the support plate 74 abuts against the bottom surface of the workpiece 2 , and the support frame 73 is fixedly connected to the flanging die 72 .

[0040] During the process of stamping and cutting the workpiece 2, the rear section of the outer frame 61 is located on the flanging mechanism 7. After the stamping process of the workpiece 2 is completed, the stamping mechanism 6 is pushed forward by the push-pull rod 55, so that the surface of the workpiece 2 is smoothed by the cooperation of the stamping block 62 and the smoothing plate 63, thereby avoiding the bulge of the workpiece 2 after the stamping and cutting, and further avoiding the uneven state of the flanging part after the subsequent flanging process, which makes the workpiece 2 unable to be installed in the mounting groove on the car window.

[0041] As the punching mechanism 6 is pushed by the push-pull rod 55, and the rear section of the outer frame 61 contacts the notched cut surface of the workpiece 2, the rear section of the outer frame 61 is no longer directly above the flanging mechanism 7. At this time, the telescopic rod connected to the bottom surface of the driving support plate 74 retracts, so that the two support plates 74 are horizontal, and the upper flattening cylinder 46 is pressed down, thereby roughly pressing the front end of the workpiece 2, so that in the subsequent flanging process, the front end of the workpiece 2 is more easily punched into the required plane by the flanging die 72.

[0042] After the flattening cylinder 46 completes the rough pressing, the flattening cylinder 46 retracts, causing the flanging cylinder 71 to extend upward, thereby causing the flanging die 72 to move upward and contact the bottom surface of the workpiece 2. As the flanging die 72 moves upward, the front end of the workpiece 2 bends upward, and through the cooperation between the side of the flanging die 72 and the side of the outer frame 61, the front end of the workpiece 2 is bent upward and punched into a horizontal plane, thereby realizing the forming of one end of the workpiece 2.

[0043] When using the present invention, the workpiece 2 is first placed on the sliding frame 12, and then the sliding frame 12 moves forward for feeding, and then the pressing cylinder 45 is driven to press down to push the stamping mechanism 6 to move down and stamp the workpiece 2, and then the pressing cylinder 45 is retracted, and then the push-pull rod 55 pushes the stamping mechanism 6 forward to smooth the front end of the workpiece 2, and then the flattening cylinder 46 is driven to press down, and at the same time, the telescopic rod under the support plate 74 is retracted to roughly press the front end of the workpiece 2, and then the telescopic rod of the flanging cylinder 71 is controlled to extend upward to perform multiple progressive flanging on the front end of the workpiece 2, and after the flanging cylinder 71 is reset, the push-pull rod 55 is controlled to pull back the stamping mechanism 6, and as the push-pull rod 55 is unlocked, the stamping mechanism 6 moves upward together with the connecting block 54 to reset, and then the sliding frame 12 is controlled to retreat for unloading.

[0044] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A stamping device for producing stainless steel window trim strips, comprising a feeding mechanism (1), a workpiece (2) and a frame (3), wherein the feeding mechanism (1) is fixed to one side of the frame (3) and is used to convey the workpiece (2), and is characterized in that: Also includes: A driving unit (4), comprising a bracket (41) and a horizontal bracket (42) fixed on the frame (3), wherein a downward pressing cylinder (45) and a flattening cylinder (46) are fixed on the bracket (41); A guide mechanism (5) comprising a vertical plate (51) symmetrically fixed to the top surface of the horizontal frame (42), a guide slot (53) being provided on a side surface of the vertical plate (51), and a connecting block (54) being slidably connected in the guide slot (53); A punching mechanism (6) includes an outer frame (61) fixedly connected between two connecting blocks (54), the outer frame (61) abutting against the top surface of the workpiece (2), a symmetrical punching block (62) being slidably connected inside the outer frame (61), a smoothing plate (63) being hingedly connected to the inner side surface of the outer frame (61) facing the forward direction, a sliding column (64) being slidably connected to the bottom surface of the outer frame (61), and the sliding column (64) driving the smoothing plate (63) to rotate from a default vertical state to a horizontal state through a transmission structure when the sliding column (64) moves upward; A flanging mechanism (7) comprises a flanging cylinder (71) and a flanging die (72) located below the processed end of the workpiece (2).

2. A stamping device for producing stainless steel window trims according to claim 1, characterized in that: The outer frame (61) is composed of a front section, a middle section and a rear section. When the connecting block (54) is in the vertical section of the guide slot (53), the rear section of the outer frame (61) and the sliding column (64) do not contact the workpiece (2). The smoothing plate (63) is located on the inner side of the rear section facing the front section. The length of the rear section of the outer frame (61) is equal to the length of the notch of the workpiece (2).

3. The punching device for producing stainless steel window trim strips according to claim 1, characterized in that: The feeding mechanism (1) is composed of a fixed frame (11) and a sliding frame (12) slidably connected to the fixed frame (11); the workpiece (2) is installed in the sliding frame (12); a front push rod (13) is fixed inside the sliding frame (12) to push the workpiece (2) forward; and a bracket (43) aligned with the sliding frame (12) is fixed on the top surface of the horizontal frame (42).

4. A stamping device for producing stainless steel window trims according to claim 1, characterized in that: One side of the vertical plate (51) is slidably connected to a slide (52), and the connecting block (54) is slidably connected to the slide (52). A spring is sleeved on the slide (52) to push the connecting block (54) to move upward, and the connecting block (54) moves in an "L" shape along the guide slot (53).

5. The punching device for producing stainless steel window trim strips according to claim 1, characterized in that: The top surface of the horizontal frame (42) is fixedly connected to a vertical frame (44), and the side surface of the vertical frame (44) is fixedly connected to a push-pull rod (55) with a telescopic end facing the connecting block (54), and the push-pull rod (55) drives the connecting block (54) to move in the horizontal direction.

6. A stamping device for producing stainless steel window trims according to claim 5, characterized in that: The telescopic end of the push-pull rod (55) is fixedly connected to a hook column with a notch, the connecting block (54) is provided with a circular hole (58) on the side facing the push-pull rod (55), the vertical plate (51) is provided with a groove (56) on the side facing the connecting block (54), and a slide plate (57) driven by a spring to slide outward is slidably connected inside the connecting block (54).

7. A stamping device for producing stainless steel window trim strips according to claim 6, characterized in that: When the connecting block (54) is at a right-angle turn of the guide chute (53), one end of the slide plate (57) extends into the groove (56). After the push-pull rod (55) pushes the connecting block (54) forward and the slide plate (57) is disengaged from the groove (56), the slide plate (57) engages with the notch on the hook column to relatively fix the connecting block (54) and the telescopic end of the push-pull rod (55).

8. The punching device for producing stainless steel window trim strips according to claim 1, characterized in that: The outer side of the sliding column (64) is fixedly sleeved with a connecting frame (641), the outer frame (61) is fixedly connected with a rope tube (65), and a rope is arranged in the rope tube (65). One end of the rotating shaft of the smoothing plate (63) is fixedly connected with a coaxial column (66), and the outer side surface of the coaxial column (66) is provided with a rotating groove (661). The outer frame (61) is slidably connected with a sliding column block (662) that slides along the rotating axis of the smoothing plate (63). The sliding column block (662) is provided with a sliding column with one end located in the rotating groove (661) on the side facing the coaxial column (66). The two ends of the rope are respectively fixedly connected to one side of the sliding column block (662) and the bottom surface of the connecting frame (641). The rotating shaft of the smoothing plate (63) is sleeved with a torsion spring for resetting it.

9. The punching device for producing stainless steel window trim strips according to claim 1, characterized in that: A push block (67) is slidably connected to the outer frame (61), the bottom of which abuts against the punching block (62). When the push block (67) moves downward, the punching block (62) slides outward and punches the workpiece (2). A scraper (68) is fixedly connected to the outer frame (61). The scraper (68) is located on the outer edge of the workpiece (2) after being punched. The push block (67) is pushed downward by the downward pressure cylinder (45). The push block (67) has a tendency to move upward driven by the elastic member.

10. The punching device for producing stainless steel window trim strips according to claim 1, characterized in that: The telescopic end of the flanging cylinder (71) is fixedly connected to a support frame (73), the top surface of the support frame (73) is hinged to a support plate (74), the support plate (74) abuts against the bottom surface of the workpiece (2), and the support frame (73) is fixedly connected to the flanging die (72).

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