Pressure cooker cover stamping machining device

Abstract

The invention relates to the technical field of pot cover manufacturing, in particular to a pressure cooker cover stamping device which comprises a stamping machine body and a workbench arranged on the stamping machine body, a containing cavity and a forming cavity are formed in the top of the workbench, and a lifting table is arranged on the stamping machine body and located above the workbench. A spring pressing mechanism and a first arc-shaped module are arranged on the lifting table, a second arc-shaped module is arranged on the first arc-shaped module in a sliding fit mode, and the first arc-shaped module and the second arc-shaped module are both matched with the forming cavity; a locking assembly is arranged on the spring pressing mechanism and used for limiting the position of the second arc-shaped module. In the using process, the pot cover is automatically positioned firstly, then the pot cover is preliminarily stamped to form an annular groove, and then multiple positions of the edge of the pot cover are stamped at the same time to form grooves, so that the pot cover stamping device has multiple functions and is high in automation degree and high in working efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of pot cover manufacturing, and in particular to a pressure cooker pot cover stamping processing device. Background Art

[0002] In the manufacturing process of pressure cooker lid, the shaping of the lid edge is a very important link, which mainly involves stamping and flanging the lid edge to improve the sealing and durability of the lid.

[0003] When using traditional pressure cooker lid stamping equipment, most of them use multiple molds to gradually stamp and shape the lid. However, the replacement of different molds greatly affects work efficiency. In addition, traditional stamping equipment requires multiple shaping situations for the same mold, and the position of the lid or the stamping mold needs to be constantly adjusted to achieve gradual stamping of the lid in multiple places. However, this stamping method is not efficient, and the displacement is prone to errors that affect the quality of the finished product. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a pressure cooker cover stamping processing device to solve the above problems.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A pressure cooker lid stamping processing device comprises a stamping machine body and a workbench arranged on the stamping machine body, a placing cavity and a molding cavity are arranged on the top of the workbench, a lifting platform is arranged on the stamping machine body above the workbench, a spring clamping mechanism and a first arc-shaped module are arranged on the lifting platform, a second arc-shaped module is slidably matched on the first arc-shaped module, and both the first arc-shaped module and the second arc-shaped module match the molding cavity; a locking assembly is arranged on the spring clamping mechanism, and the locking assembly is used to limit the position of the second arc-shaped module; a fixed arc-shaped block group is fixedly connected to the top of the workbench, and a movable arc-shaped block group and a filling block group are slidably matched in a direction perpendicular to the central axis of the molding cavity, and the fixed arc-shaped block group, the movable arc-shaped block group and the filling block group are surrounded by a ring;

[0007] The top of the workbench is rotatably connected to a swivel, on which are provided a number of trapezoidal blocks, whose two waist surfaces are respectively driven and cooperated with a fixed arc-shaped block group and a movable arc-shaped block group; a reciprocating rotating mechanism is installed on the punching machine body, and the driving part of the reciprocating rotating mechanism is linked with the swivel.

[0008] Preferably, the first arc module and the second arc module form a ring, the first arc module includes a plurality of fixed arc molds, the fixed arc molds are fixed on the bottom of the lifting platform, the second arc module includes a plurality of movable arc molds, the fixed arc molds and the movable arc molds are alternately arranged on the lifting platform, a first guide groove is provided on the fixed arc mold, a first guide block is fixedly connected to the movable arc mold, the inner wall of the first guide groove is slidably matched with the outer surface of the first guide block, and a first spring is installed between the first guide block and the inner bottom wall of the first guide groove.

[0009] Preferably, the fixed arc block group includes a plurality of fixed arc blocks, and the setting position of the movable arc mold matches the setting position of the fixed arc block; the movable arc block group includes a plurality of movable arc blocks, and the setting position of the fixed arc mold matches the setting position of the movable arc block; the filling block group includes a plurality of filling blocks, and the filling blocks are located between the fixed arc block and the movable arc block.

[0010] Preferably, the workbench is provided with a second guide groove and a third guide groove, the second guide groove and the third guide groove are both perpendicular to the central axis of the molding cavity, and the bottom of the movable arc-shaped stop block and the filling block are fixedly connected with the second guide block and the third guide block respectively; the second guide groove is slidably matched with the second guide block, and a second spring is installed in the second guide groove on one side of the second guide block, and the third guide groove is slidably matched with the third guide block, and a third spring is installed in the third guide groove on one side of the third guide block.

[0011] Preferably, the movable arc-shaped stop block and the filling block are respectively fixedly connected with a first protrusion and a second protrusion, and the two waist surfaces of the trapezoidal block are matched with the first protrusion and the second protrusion respectively.

[0012] Preferably, the lifting platform comprises a cylinder body mounted on the punching machine body, the free end of the cylinder body is arranged downward and a mounting plate is provided at the end thereof.

[0013] Preferably, the spring clamping mechanism includes an inner cylinder fixed to the bottom of the mounting plate, a pressing cylinder is sleeved on the inner cylinder, and the outer surface of the inner cylinder is slidably matched with the inner wall of the pressing cylinder, and a fourth spring is installed between the bottom of the mounting plate and the inner bottom wall of the pressing cylinder; a distance sensor is installed on the inner bottom wall of the pressing cylinder, the detection part of the distance sensor is arranged toward the mounting plate, and the cylinder body is electrically connected to the distance sensor.

[0014] Preferably, a plurality of give-way grooves are provided on the outer surface of the pressing cylinder, a limiting portion is fixedly connected to the movable arc-shaped mold, and the other end of the limiting portion extends to the inside of the give-way groove; a plurality of positioning grooves are provided on the side wall of the pressing cylinder, and the two ends of the give-way groove are respectively connected to the give-way groove and the inside of the pressing cylinder, and a stop block is slidably fitted in the positioning groove, and both ends of the stop block are set to be conical; a movable groove is provided on the side wall of the pressing cylinder, and the stop block passes through the movable groove, and a movable plate is installed on the stop block located in the movable groove, and the inner wall of the movable groove is slidably fitted with the outer surface of the movable plate, and an elastic block is installed in the movable groove on one side of the movable plate.

[0015] Preferably, the reciprocating rotation mechanism includes a forward and reverse motor installed in the punching machine body, the distance sensor is electrically connected to the forward and reverse motor, a power gear is provided on the output end of the forward and reverse motor, a connecting rod is provided at the bottom of the rotating ring, an arc groove is opened on the workbench, the connecting rod passes through the arc groove and the bottom end thereof is fixedly connected to a ring gear, and the power gear is meshingly connected with the ring gear.

[0016] Preferably, a one-way bearing is coaxially arranged on the ring gear, a sleeve is arranged on the one-way bearing, a mounting groove is arranged on the inner bottom wall of the placement cavity, a top plate is slidably fitted in the mounting groove, a lifting column is rotatably connected to the bottom of the top plate, the bottom end of the lifting column passes through the sleeve, a V-shaped groove is arranged on the outer surface of the lifting column, and a ball matching the V-shaped groove is arranged on the inner wall of the sleeve;

[0017] A support block is hinged on the fixed arc-shaped stop block, and an elastic sheet is arranged on the top of the support block. The elastic sheet is arched, and the other end of the elastic sheet is fixedly connected to the fixed arc-shaped stop block.

[0018] The beneficial effects of the present invention are:

[0019] 1. During the use of the present invention, the pot cover is automatically positioned first, then the pot cover is preliminarily punched to form an annular groove, and then multiple places on the edge of the pot cover are punched simultaneously to form grooves, so that the present invention has multifunctionality, and the degree of automation of the present invention is high, so that the present invention has high working efficiency.

[0020] 2. During the use of the present invention, the fixed arc mold and the movable arc mold first descend at a high speed, and when approaching the pre-punching position, the downward movement speed is automatically reduced, thereby improving the punching accuracy. The present invention ensures the quality of the finished product on the basis of shortening the punching time to the greatest extent.

[0021] 3. After the stamping work of the present invention is completed, the top plate automatically rises and pushes the pot cover out of the placement cavity, and the support block supports the pot cover so that the pot cover is in a suspended state, thereby facilitating the staff to take out the pot cover, thereby improving the practicality of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention.

[0023] Figure 2 It is a cross-sectional structural schematic diagram of the present invention.

[0024] Figure 3 It is a schematic cross-sectional structural diagram of the pressing cylinder of the present invention.

[0025] Figure 4 The structure of the fixed arc-shaped block, the movable arc-shaped block and the filling block combination of the present invention is schematically shown. Figure 1 .

[0026] Figure 5 The structure of the fixed arc-shaped block, the movable arc-shaped block and the filling block combination of the present invention is schematically shown. Figure 2 .

[0027] Figure 6 For the present invention Figure 3 Schematic diagram of the structure with a partial enlargement at point A in the middle.

[0028] Figure 7 It is a structural schematic diagram of the fixed arc mold of the present invention.

[0029] Figure 8 For the present invention Figure 3 Schematic diagram of the structure with a partial enlargement at point B in the middle.

[0030] Fig. 9 It is a schematic diagram of the explosion structure of the sleeve of the present invention.

[0031] Fig.10 For the present invention Figure 4 Schematic diagram of the partially enlarged structure at point C in the middle.

[0032] Fig.11 It is a schematic diagram of the structure of the pot cover after stamping of the present invention.

[0033] In the attached drawings: 1, punching machine body; 2, workbench; 3, placement chamber; 4, cylinder body; 5, swivel; 6, trapezoidal block; 7, fixed arc mold; 8, movable arc mold; 9, first guide groove; 10, first guide block; 11, fixed arc block; 12, movable arc block; 13, filling block; 14, second guide groove; 15, third guide groove; 16, first spring; 17, support block; 18, elastic sheet; 19, second spring; 20, third spring; 21, mounting plate; 22, inner cylinder; 23, pressing cylinder ; 24. Fourth spring; 25. Distance sensor; 26. Give way groove; 27. Limiting part; 28. Stop block; 29. ​​Movable groove; 30. Movable plate; 31. Elastic block; 32. First protrusion; 33. Second protrusion; 34. Forward and reverse motor; 35. Power gear; 36. Connecting rod; 37. Arc groove; 38. Ring gear; 39. One-way bearing; 40. Molding cavity; 41. Sleeve; 42. Mounting groove; 43. Top plate; 44. Lifting column; 45. V-shaped groove; 46. Ball bearing; 47. Pot cover. DETAILED DESCRIPTION

[0034] The following will refer to Figures 1 to 11 The embodiments of the present invention are described in detail. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0035] A pressure cooker lid stamping processing device, such as Figure 1-Figure 4 and Fig.10 As shown, it includes a punching machine body 1 and a workbench 2 arranged on the punching machine body 1, a placement cavity 3 and a molding cavity 40 are arranged on the top of the workbench 2, the placement cavity 3 and the molding cavity 40 are integrally formed, the placement cavity 3 is used to place the pot cover 47 to be processed, and a lifting platform is arranged on the punching machine body 1 above the workbench 2, the lifting platform includes a cylinder body 4 installed on the punching machine body 1, the cylinder body 4 is a hydraulic cylinder, the free end of the cylinder body 4 is arranged downward and a mounting plate 21 is arranged at its end; a spring clamping mechanism and a first arc module are arranged on the lifting platform, a second arc module is slidably matched on the first arc module, the first arc module and the second arc module are both matched with the molding cavity 40, when the first arc module is aligned with the second arc module, the first arc module and the second arc module form a ring; when the cylinder body 4 drives the mounting plate 21 to descend, as shown Figure 2 and Figure 4 As shown, the first arc-shaped die set and the second arc-shaped die set descend and preliminarily punch the pot cover 47 (the pot cover 47 before punching is cylindrical), and cooperate with the setting of the forming cavity 40, as shown in FIG. Fig.11 As shown, an annular groove D is formed on the pot cover 47.

[0036] like Figure 3 , Figure 6 and Figure 7As shown, the first arc module includes a plurality of fixed arc molds 7, which are fixed at the bottom of the lifting platform, and the second arc module includes a plurality of movable arc molds 8, which are alternately arranged on the lifting platform. The fixed arc mold 7 is provided with a first guide groove 9, and the setting direction of the first guide groove 9 is vertical. The movable arc mold 8 is fixedly connected with a first guide block 10, and the inner wall of the first guide groove 9 is slidably matched with the outer surface of the first guide block 10. A first spring 16 is installed between the first guide block 10 and the inner bottom wall of the first guide groove 9. Through the matching setting of the first guide block 10 and the first guide groove 9, the movable arc mold 8 can move up and down relative to the fixed arc mold 7; a locking assembly is provided on the spring clamping mechanism, and the locking assembly is used to limit the position of the second arc module.

[0037] like Figure 3-Figure 6 As shown, the top of the workbench 2 is fixedly connected with a fixed arc-shaped block group and a movable arc-shaped block group and a filling block group that are slidably matched in a direction perpendicular to the central axis of the molding cavity 40. The fixed arc-shaped block group, the movable arc-shaped block group and the filling block group form a ring; the fixed arc-shaped block group includes a plurality of fixed arc-shaped blocks 11, and the setting position of the movable arc-shaped mold 8 matches the setting position of the fixed arc-shaped block 11; the movable arc-shaped block group includes a plurality of movable arc-shaped blocks 12, and the setting position of the fixed arc-shaped mold 7 matches the setting position of the movable arc-shaped block 12; the filling block group includes a plurality of filling blocks 13, and the filling block 13 is located between the fixed arc-shaped block 11 and the movable arc-shaped block 12; the inner diameter of the ring body surrounded by the fixed arc-shaped block 11, the movable arc-shaped block 12 and the filling block 13 is consistent with the inner diameter of the molding cavity 40. During the stamping process of the fixed arc-shaped mold 7 and the movable arc-shaped mold 8, the ring body cooperates with the molding cavity 40 to shape the pot cover 47, as shown in FIG. Figure 6 and Fig.11 As shown, after the pot cover 47 is initially punched to form the annular groove D, the edge portion of the pot cover 47 extends to the interior of the annular body.

[0038] A second guide groove 14 and a third guide groove 15 are provided on the workbench 2, and the second guide groove 14 and the third guide groove 15 are both perpendicular to the central axis of the molding cavity 40, and the bottoms of the movable arc-shaped stop block 12 and the filling block 13 are fixedly connected with the second guide block and the third guide block respectively, and the second guide block and the third guide block are not drawn; the second guide groove 14 is slidably matched with the second guide block, so that the movable arc-shaped stop block 12 can move along the direction of the second guide groove 14; a second spring 19 is installed on one side of the second guide block in the second guide groove 14, and the third guide groove 15 is slidably matched with the third guide block, so that the filling block 13 can move along the direction of the third guide groove 15, and a third spring 20 is installed on one side of the third guide block in the third guide groove 15, and when the fixed arc-shaped stop block 11, the movable arc-shaped stop block 12 and the filling block 13 form a ring, the third spring 20 is in a stretched and force-accumulated state.

[0039] The top of the workbench 2 is rotatably connected with a swivel ring 5, on which a number of trapezoidal blocks 6 are arranged, and the two waist surfaces of the trapezoidal blocks 6 are respectively driven and matched with the fixed arc-shaped block group and the movable arc-shaped block group; a reciprocating rotating mechanism is installed on the punching machine body 1, and the driving part of the reciprocating rotating mechanism is linked with the swivel ring 5; the movable arc-shaped block 12 and the filling block 13 are respectively fixedly connected with the first protrusion 32 and the second protrusion 33, and the two waist surfaces of the trapezoidal block 6 are respectively matched with the first protrusion 32 and the second protrusion 33; when the device performs preliminary stamping work, one waist surface of the trapezoidal block 6 is against the second protrusion 33, at this time, the fixed arc-shaped block 11, the movable arc-shaped block 12 and the filling block 1 3 is surrounded by a ring body, and the movable arc-shaped stopper 12 cannot move toward the direction close to the forming cavity 40; when the device performs secondary stamping, the reciprocating rotation mechanism drives the rotating ring 5 to rotate forward, the trapezoidal block 6 no longer abuts against the second protrusion 33, and the third spring 20 pulls the third guide block to make the filling block 13 away from the forming cavity 40, and a gap is generated between the movable arc-shaped stopper 12 and the filling block 13 (by generating a gap, the movable arc-shaped stopper 12 has a movable space so that it can move toward the forming cavity 40), and the rotating ring 5 continues to rotate. When the other waist surface of the trapezoidal block 6 abuts the first protrusion 32, the movable arc-shaped stopper 12 moves along the second guide groove 14 and approaches the forming cavity 40. Fig.11 As shown, the pot cover 47 is further punched for a second time to form a groove E on the pot cover 47.

[0040] like Figure 4 As shown, it should be noted that there are multiple movable arc-shaped blocks 12 on the device, and the device is used to punch multiple locations of the pot cover 47 at the same time. Compared with the traditional technology (in the traditional technology, the position of the pot cover 47 or the mold is continuously adjusted to achieve a mold that gradually punches multiple locations of the pot cover 47), the stamping method in the device is more efficient.

[0041] like Figure 3 and Figure 6As shown, the spring pressing mechanism includes an inner cylinder 22 fixed to the bottom of the mounting plate 21, a pressing cylinder 23 is sleeved on the inner cylinder 22, and the outer surface of the inner cylinder 22 is slidably matched with the inner wall of the pressing cylinder 23, the outer diameter of the pressing cylinder 23 should be equal to or slightly smaller than the inner diameter of the pot cover 47, and the pressing cylinder 23 can only slide up and down relative to the inner cylinder 22 (for example, the outer surface of the inner cylinder 22 and the inner wall of the pressing cylinder 23 are set to be elliptical), and a fourth spring 24 is installed between the bottom of the mounting plate 21 and the inner bottom wall of the pressing cylinder 23; a distance sensor 25 is installed on the inner bottom wall of the pressing cylinder 23, and the distance sensor 25 The detection part is arranged toward the mounting plate 21, and the cylinder body 4 is electrically connected to the distance sensor 25; when the mounting plate 21 descends, the pressing cylinder 23 extends into the interior of the pot cover 47 and presses against the inner bottom wall of the pot cover 47. When the mounting plate 21 continues to descend, the fourth spring 24 is compressed. Under the reaction force of the fourth spring 24, the pressing cylinder 23 presses the pot cover 47 to locate the position of the pot cover 47; and the pressing cylinder 23 slides relative to the inner cylinder 22 and approaches the mounting plate 21. The distance sensor 25 detects that the distance to the mounting plate 21 is reduced, and the distance sensor 25 controls the free end of the cylinder body 4 to reduce the extension speed.

[0042] A plurality of clearance grooves 26 are provided on the outer surface of the pressing cylinder 23, and a limiting portion 27 is fixedly connected to the movable arc-shaped mold 8. The limiting portion 27 is made of a metal block with a certain flexibility, and the other end of the limiting portion 27 extends to the inside of the clearance groove 26; a plurality of positioning grooves are provided on the side wall of the pressing cylinder 23, and the two ends of the clearance groove 26 are respectively connected to the clearance groove 26 and the inside of the pressing cylinder 23, and a stop block 28 is slidably matched in the positioning groove, and the two ends of the stop block 28 are both set to be conical; a movable groove 29 is provided on the side wall of the pressing cylinder 23, and the stop block 28 is provided to the movable groove 29. The block 28 passes through the movable groove 29, and a movable plate 30 is installed on the stop block 28 located in the movable groove 29. The inner wall of the movable groove 29 slides with the outer surface of the movable plate 30, and an elastic block 31 is installed on one side of the movable plate 30 in the movable groove 29; when the mounting plate 21 descends to make the pressing cylinder 23 slide relative to the inner cylinder 22, when the inner cylinder 22 pushes against one end of the stop block 28 extending into the pressing cylinder 23, since both ends of the stop block 28 are set to be conical, the stop block 28 slides in the positioning groove and makes the other end extend into the yield groove 26.

[0043] like Figure 2-Figure 5 and Fig. 9 As shown, the reciprocating rotation mechanism includes a forward and reverse motor 34 installed in the punching machine body 1, the distance sensor 25 is electrically connected to the forward and reverse motor 34, a power gear 35 is provided on the output end of the forward and reverse motor 34, a connecting rod 36 is provided at the bottom of the rotating ring 5, an arc groove 37 is opened on the workbench 2, the connecting rod 36 passes through the arc groove 37 and a ring gear 38 is fixedly connected to its bottom end, the power gear 35 is meshed and connected with the ring gear 38, when the forward and reverse motor 34 drives the power gear 35 to reciprocate, the ring gear 38 drives the rotating ring 5 to reciprocate through the connecting rod 36.

[0044] like Figure 3 , Figure 8 and Fig. 9 As shown, a one-way bearing 39 is coaxially arranged on the ring gear 38, and a sleeve 41 is arranged on the one-way bearing 39. Through the arrangement of the one-way bearing 39, the sleeve 41 will rotate only when the ring gear 38 rotates in the opposite direction. A mounting groove 42 is provided on the inner bottom wall of the placement chamber 3, and a top plate 43 is slidably fitted in the mounting groove 42. A lifting column 44 is rotatably connected to the bottom of the top plate 43. The bottom end of the lifting column 44 penetrates into the sleeve 41, and a V-shaped groove 45 is provided on the outer surface of the lifting column 44. A ball 46 matching the V-shaped groove 45 is provided on the inner wall of the sleeve 41; when the sleeve 41 rotates, the ball 46 slides in the V-shaped groove 45 through the matching arrangement of the V-shaped groove 45 and the ball 46, so that the lifting column 44 is lifted and lowered, and the top plate 43 is lifted and lowered along the mounting groove 42; when the top plate 43 rises, the pot cover 47 in the placement chamber 3 can be ejected.

[0045] like Figure 4 and Fig.10 As shown, a support block 17 is hinged on the fixed arc-shaped stop block 11 , and an elastic sheet 18 is provided on the top of the support block 17 . The elastic sheet 18 is arched, and the other end of the elastic sheet 18 is fixedly connected to the fixed arc-shaped stop block 11 .

[0046] It should be noted that the device is provided with a control system (for example, a PLC controller is installed on the device), and the control system can control the output speed of the cylinder 4 and the forward and reverse rotation of the forward and reverse motor 34.

[0047] When the device is used, the pot cover 47 is first placed in the placement cavity 3, and then the cylinder body 4 is started and the free end of the cylinder body 4 is quickly extended, the mounting plate 21 is quickly lowered, and the fixed arc mold 7, the movable arc mold 8 and the pressing cylinder 23 are all synchronously lowered with the mounting plate 21.

[0048] The pressing cylinder 23 extends into the interior of the pot cover 47 and presses against the inner bottom wall of the pot cover 47. When the mounting plate 21 continues to descend, the pressing cylinder 23 cannot descend any further, so it slides relative to the inner cylinder 22 and approaches the mounting plate 21. At the same time, the fourth spring 24 is compressed. Under the influence of the reaction force of the fourth spring 24, the pressing cylinder 23 presses the pot cover 47, thereby achieving the positioning of the pot cover 47.

[0049] The fixed arc mold 7 and the movable arc mold 8 descend and abut against the pot cover 47 (at this time, the fixed arc mold 7 and the movable arc mold 8 form a ring), and then the pot cover 47 is preliminarily stamped to form an annular groove D on the pot cover 47.

[0050] It should be noted that when the mounting plate 21 descends to make the pressing cylinder 23 slide relative to the inner cylinder 22, it means that the fixed arc mold 7 and the movable arc mold 8 are close to the pre-pressing position of the pot cover 47, and the distance sensor 25 detects that the distance to the mounting plate 21 is reduced. The distance sensor 25 transmits a signal to the control system, and the control system controls the free end of the cylinder body 4 to reduce the extension speed to prevent the fixed arc mold 7 and the movable arc mold 8 from descending too fast, which makes the stamping amount difficult to control, that is, reduces the quality of the finished product.

[0051] It is worth mentioning that when the mounting plate 21 descends and causes the pressing cylinder 23 to slide relative to the inner cylinder 22, when the inner cylinder 22 pushes against the stop block 28 and extends into one end of the pressing cylinder 23, since both ends of the stop block 28 are configured to be conical, the stop block 28 slides and causes the other end to extend into the clearance groove 26 (at the same time, the movable plate 30 follows the movement of the stop block 28 to compress the elastic block 31 and store force); it should be noted that the pressing cylinder 23 also slides relative to the movable arc-shaped mold 8, and the stop block 28 will not prevent the limiting portion 27 from moving downward along the clearance groove 26.

[0052] After the initial stamping of the device is completed, the free end of the control cylinder 4 is controlled to contract, so that the mounting plate 21 rises slowly. In the initial stage of the rising of the mounting plate 21, the fixed arc mold 7 and the inner cylinder 22 both rise synchronously with the mounting plate 21, and are affected by the reset force of the fourth spring 24. At this time, the pressing cylinder 23 is still in the state of pressing the pot cover 47, that is, the position of the pressing cylinder 23 is fixed, and the distance from the distance sensor 25 to the mounting plate 21 increases; it should be noted that the elastic hardness of the fourth spring 24 is higher than the elastic hardness of the first spring 16, and is restricted by the stop block 28. At this time, the movable arc mold 8 cannot rise, and the movable arc mold 8 slides relative to the fixed arc mold 7 (at the same time, the first guide block 10 slides in the first guide groove 9, and the first spring 16 is compressed to store force).

[0053] During the rising process of the mounting plate 21, the fixed arc mold 7 rises to make way. When the distance sensor 25 detects that the distance from the mounting plate 21 increases to the set value, it means that the fixed arc mold 7 rises to completely disengage from the annular groove D of the pot cover 47. At this time, the movable arc mold 8 still abuts against the inner wall of the annular groove D. The distance sensor 25 transmits a signal to the control system, and the control system controls the forward and reverse motor 34 to start, and the forward and reverse motor 34 drives the power gear 35 to make the ring gear 38 rotate forward, and the connecting rod 36 drives the swivel 5 to rotate forward, and the trapezoidal block 6 rotates forward and no longer abuts against the second protrusion 33, the third spring 20 pulls the third guide block to make the filling block 13 away from the forming cavity 40, and a gap is generated between the movable arc-shaped abutment block 12 and the filling block 13, and the swivel 5 continues to rotate. When the other waist surface of the trapezoidal block 6 abuts against the first protrusion 32, the movable arc-shaped abutment block 12 moves along the second guide groove 14 and approaches the forming cavity 40 (at the same time, the second spring 19 is stretched to store force), thereby performing a second stamping on the pot cover 47. At this time, since only the movable arc mold 8 supports the inner wall of the annular groove D, a groove E is formed on the pot cover 47.

[0054] Then, when the mounting plate 21 rises to the point where the inner cylinder 22 no longer presses against the stop block 28, the elastic block 31 releases its force to cause the movable plate 30 to slide in the opposite direction, and the stop block 28 moves out of the clearance groove 26, thereby releasing the limit on the limit portion 27. The first spring 16 releases its force to expand, and causes the movable arc mold 8 to rise along the first guide groove 9, and the fixed arc mold 7 is realigned with the movable arc mold 8 and forms a ring.

[0055] During the rising process of the mounting plate 21, when the distance sensor 25 detects that the distance to the mounting plate 21 increases to the maximum value, it means that the pressing cylinder 23 no longer presses the pot cover 47, and the distance sensor 25 transmits a signal to the control system. The control system controls the free end of the cylinder body 4 to shrink quickly, so that the mounting plate 21 rises quickly, and after a delay of a period of time, for example, 3 seconds, 5 seconds, etc. (the delay time is set according to demand, and the delay control can be completed by setting the control instruction of the PLC controller, or by setting the clock circuit. This is the prior art and will not be described in detail here), the control system controls the forward and reverse motor 34 to reversely drive the power gear 35, so that the ring gear 38 rotates in the opposite direction, the connecting rod 36 drives the swivel 5 to rotate in the opposite direction, the trapezoidal block 6 rotates in the opposite direction and no longer abuts against the first protrusion 32, the second spring 19 pulls the movable arc-shaped abutment block 12 away from the molding cavity 40 and resets it, and the trapezoidal block 6 abuts against the second protrusion 33 again, so that the filling block 13 approaches the molding cavity 40 and resets it.

[0056] When the annular gear 38 rotates in the opposite direction, the one-way bearing 39 rotates with the sleeve 41, and the V-groove 45 and the ball 46 are matched to make the lifting column 44 perform lifting and lowering motion, and the top plate 43 moves up and down along the mounting groove 42; when the top plate 43 rises, the pot cover 47 punched out in the placement cavity 3 can be ejected, and when the pot cover 47 rises, the annular groove D of the pot cover 47 abuts against the bottom of the support block 17, so that the support block 17 turns upward, and at the same time the elastic sheet 18 is deformed, and the support block 17 will not block the rising motion of the pot cover 47. When the pot cover 47 rises to the annular groove D and passes over the support block 17, the elastic sheet 18 releases the force and makes the support block 17 rotate in the opposite direction to reset; when the top plate 43 descends, the support block 17 can support the annular groove D of the pot cover 47, so that the pot cover 47 is in a suspended state, which is convenient for the staff to take out the pot cover 47.

[0057] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0058] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0059] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A pressure cooker lid stamping processing device, comprising a stamping machine body (1) and a workbench (2) arranged on the stamping machine body (1), a placement cavity (3) and a molding cavity (40) are arranged on the top of the workbench (2), and a lifting platform is arranged on the stamping machine body (1) above the workbench (2), characterized in that: The lifting platform is provided with a spring clamping mechanism and a first arc module, the first arc module is slidably matched with a second arc module, and the first arc module and the second arc module are both matched with the molding cavity (40); the spring clamping mechanism is provided with a locking assembly, and the locking assembly is used to limit the position of the second arc module; the top of the workbench (2) is fixedly connected with a fixed arc block group and a movable arc block group and a filling block group that are slidably matched in a direction perpendicular to the central axis of the molding cavity (40), and the fixed arc block group, the movable arc block group and the filling block group are surrounded by a ring; The top of the workbench (2) is rotatably connected to a swivel ring (5), on which a plurality of trapezoidal blocks (6) are arranged, and two waist surfaces of the trapezoidal blocks (6) are respectively driven and matched with a fixed arc-shaped block group and a movable arc-shaped block group; a reciprocating rotating mechanism is installed on the punching machine body (1), and the driving part of the reciprocating rotating mechanism is linked with the swivel ring (5).

2. The pressure cooker cover stamping device according to claim 1, characterized in that: The first arc module and the second arc module form a ring. The first arc module includes a plurality of fixed arc molds (7). The fixed arc molds (7) are fixed on the bottom of the lifting platform. The second arc module includes a plurality of movable arc molds (8). The fixed arc molds (7) and the movable arc molds (8) are alternately arranged on the lifting platform. A first guide groove (9) is provided on the fixed arc mold (7). A first guide block (10) is fixedly connected to the movable arc mold (8). The inner wall of the first guide groove (9) is slidably matched with the outer surface of the first guide block (10). A first spring (16) is installed between the first guide block (10) and the inner bottom wall of the first guide groove (9).

3. The pressure cooker cover stamping device according to claim 2, characterized in that: The fixed arc-shaped stop block group includes a plurality of fixed arc-shaped stop blocks (11), and the setting position of the movable arc-shaped mold (8) matches the setting position of the fixed arc-shaped stop block (11); the movable arc-shaped stop block group includes a plurality of movable arc-shaped stop blocks (12), and the setting position of the fixed arc-shaped mold (7) matches the setting position of the movable arc-shaped stop block (12); the filling block group includes a plurality of filling blocks (13), and the filling blocks (13) are located between the fixed arc-shaped stop block (11) and the movable arc-shaped stop block (12).

4. The pressure cooker cover stamping device according to claim 3, characterized in that: The workbench (2) is provided with a second guide groove (14) and a third guide groove (15), the second guide groove (14) and the third guide groove (15) are both perpendicular to the central axis of the molding cavity (40), and the bottoms of the movable arc-shaped stop block (12) and the filling block (13) are respectively fixedly connected with the second guide block and the third guide block; the second guide groove (14) is slidably matched with the second guide block, and a second spring (19) is installed on one side of the second guide block in the second guide groove (14); the third guide groove (15) is slidably matched with the third guide block, and a third spring (20) is installed on one side of the third guide block in the third guide groove (15).

5. The pressure cooker cover stamping device according to claim 3, characterized in that: The movable arc-shaped stop block (12) and the filling block (13) are respectively fixedly connected with a first protrusion (32) and a second protrusion (33); the two waist surfaces of the trapezoidal block (6) are respectively matched with the first protrusion (32) and the second protrusion (33).

6. The pressure cooker cover stamping device according to claim 2, characterized in that: The lifting platform comprises a cylinder body (4) mounted on a punching machine body (1); the free end of the cylinder body (4) is arranged downward and a mounting plate (21) is provided at the end thereof.

7. The pressure cooker cover stamping device according to claim 6, characterized in that: The spring pressing mechanism comprises an inner cylinder (22) fixed to the bottom of the mounting plate (21), a pressing cylinder (23) being sleeved on the inner cylinder (22), and the outer surface of the inner cylinder (22) is slidably matched with the inner wall of the pressing cylinder (23), and a fourth spring (24) is installed between the bottom of the mounting plate (21) and the inner bottom wall of the pressing cylinder (23); a distance sensor (25) is installed on the inner bottom wall of the pressing cylinder (23), and the detection part of the distance sensor (25) is arranged toward the mounting plate (21), and the cylinder body (4) is electrically connected to the distance sensor (25).

8. The pressure cooker cover punching device according to claim 7, characterized in that: The outer surface of the pressing cylinder (23) is provided with a plurality of clearance grooves (26); a limiting portion (27) is fixedly connected to the movable arc-shaped mold (8), and the other end of the limiting portion (27) extends to the inside of the clearance groove (26); a plurality of positioning grooves are provided on the side wall of the pressing cylinder (23); the two ends of the clearance groove (26) are respectively connected to the clearance groove (26) and the inside of the pressing cylinder (23); a stop block (28) is slidably fitted in the positioning groove, and both ends of the stop block (28) are set to be conical; a movable groove (29) is provided on the side wall of the pressing cylinder (23); the stop block (28) passes through the movable groove (29); a movable plate (30) is installed on the stop block (28) located in the movable groove (29); the inner wall of the movable groove (29) is slidably fitted with the outer surface of the movable plate (30); an elastic block (31) is installed in the movable groove (29) on one side of the movable plate (30).

9. The pressure cooker cover punching device according to claim 7, characterized in that: The reciprocating rotating mechanism comprises a forward and reverse motor (34) installed in the punching machine body (1), the distance sensor (25) is electrically connected to the forward and reverse motor (34), a power gear (35) is provided on the output end of the forward and reverse motor (34), a connecting rod (36) is provided at the bottom of the rotating ring (5), an arc groove (37) is opened on the workbench (2), the connecting rod (36) passes through the arc groove (37) and the bottom end thereof is fixedly connected to a ring gear (38), and the power gear (35) is meshedly connected with the ring gear (38).

10. The pressure cooker cover punching device according to claim 9, characterized in that: A one-way bearing (39) is coaxially arranged on the ring gear (38), a sleeve (41) is arranged on the one-way bearing (39), a mounting groove (42) is provided on the inner bottom wall of the placement cavity (3), a top plate (43) is slidably fitted in the mounting groove (42), a lifting column (44) is rotatably connected to the bottom of the top plate (43), the bottom end of the lifting column (44) is inserted into the sleeve (41), a V-shaped groove (45) is provided on the outer surface of the lifting column (44), and a ball (46) matching the V-shaped groove (45) is provided on the inner wall of the sleeve (41); A support block (17) is hingedly connected to the fixed arc-shaped stop block (11). An elastic sheet (18) is provided on the top of the support block (17). The elastic sheet (18) is arched, and the other end of the elastic sheet (18) is fixedly connected to the fixed arc-shaped stop block (11).

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