CN210450583U - Cone forming die - Google Patents

Abstract

The utility model relates to the technical field of washing machine manufacturing, and particularly discloses a cone forming die, which comprises an upper forming die and a lower forming die, wherein the upper forming die comprises a second upper die base and a detachable cone forming plate, a tightening plate is arranged at the periphery of the cone forming plate, and the tightening plate can move along the vertical direction relative to the second upper die base; the shaping lower mould includes the second die holder, and the middle part of second die holder is equipped with the bell jar, and the up end of bell jar main aspects intercommunication second die holder, the tip of bell jar and the lower terminal surface interval of second die holder form the second holding tank, can dismantle in the second holding tank and set up the template of bending, and the upper surface of second die holder is provided with the protection groove. The upper forming die and the lower forming die are both made of split structures, so that the manufacturing difficulty of the whole cone forming die can be reduced, and the universality is improved; by arranging the protection groove, the pre-pressed outer circle flanging of the cylinder opening structure can be protected.

Description

Cone forming die

Technical Field

The utility model relates to a washing machine makes technical field, especially relates to a cone forming die.

Background

As shown in fig. 1 and 2, a cylinder structure of a drum-type washing machine includes a drum 100, one end of the drum 100 is connected to a driving mechanism through a rotating shaft 200, the other end is provided with a cylinder opening structure 300, the cylinder opening structure 300 includes a cylinder opening 310 fixedly connected to the drum 100 and a front sealing plate 320 disposed at one side of the cylinder opening 310 away from the drum 100, the cylinder opening 310 and the front sealing plate 320 have complex structures, the cylinder opening 310 includes a cylinder opening plate body 301, an outer circular flange 302 is disposed at the periphery of the cylinder opening plate body 301, a cone structure 303 is formed at the center of the cylinder opening plate body 301 towards the outside of the drum 100, an outwardly turned flange structure 304 is disposed at one end of the cone structure 303 away from the cylinder opening plate body 301, the front sealing plate 320 has a structure similar to that of the cylinder opening 310, when the cylinder opening structures 300 such as the front sealing plate 320 and the cylinder opening 310 are manufactured, most of the cylinder opening structures 300 such as the, and the crimping structure 304 is typically formed by hand tapping. The traditional manufacturing process has the following defects: 1. if the complex workpiece such as the cylinder opening structure 300 is directly stamped and formed by the existing stamping equipment, the workpiece has certain defects, such as pulling damage on the surface of the workpiece, low concentricity of the workpiece and the like, which can cause rust stains on the workpiece in different degrees at the later stage, and when the washing machine works, the rust stains can scratch clothes or adhere to the clothes; 2. when the stamping equipment is directly formed, more allowance needs to be reserved in advance, and the trimming process is performed after the stamping is finished, so that the working procedures are increased, and materials are wasted; 3. the edge curling structure 304 is made by beating, which not only generates more working noise, but also damages the surface of the workpiece to form defects, thereby causing rust to appear on the workpiece in different degrees in the later period.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides an aim at: the cone forming die is simple in structure, low in cost, high in universality and capable of forming the cone structure of the cylinder opening structure in a one-step compression molding mode.

In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:

provided is a cone forming die, characterized by comprising:

the upper forming die can move in the vertical direction and comprises a second upper die base and a detachable conical forming plate, a pressing plate is arranged on the periphery of the conical forming plate, and the pressing plate can move in the vertical direction relative to the second upper die base;

the shaping lower mould sets up the below of mould in the shaping, the shaping lower mould includes the second die holder, the middle part of second die holder is equipped with the bell jar, the main aspects intercommunication of bell jar the up end of second die holder, the tip of bell jar with the lower terminal surface interval of second die holder forms the second holding tank, can dismantle in the second holding tank and set up the template of bending, the upper surface of second die holder is provided with the protection groove for the excircle turn-ups.

As a preferred scheme of the cone forming die, the second upper die base comprises a base plate and an installation convex part convexly arranged on one side of the base plate, the cone forming plate is detachably installed on the installation convex part, a plurality of air springs are arranged on the base plate in a surrounding mode around the installation convex part, and power ends of the air springs are connected with the abutting plates.

As a preferable scheme of the cone forming die, the gas spring is an ammonia gas spring.

As a preferred scheme of cone forming die, support tight board and include the board body, the hole of stepping down is seted up at the center of board body, the board body is close to the protruding spacing ring board that is equipped with in one side of installation convex part, the interior pore wall of spacing ring board with the pore wall parallel and level in the hole of stepping down, the installation convex part with the toper profiled sheeting can pass the spacing ring board with the hole of stepping down is located in the bell jar.

As a preferable scheme of the cone forming die, the conical forming plate is always positioned in the limiting ring plate.

As a preferable scheme of the cone forming mold, second guide rods are arranged at intervals on one side of the gas spring, a limit baffle is screwed at the end of each second guide rod, a second guide hole is formed in the tightening plate, the second guide rods penetrate through the second guide holes, and the limit baffle is arranged on one side, far away from the seat plate, of the tightening plate.

As a preferable scheme of the cone forming die, at least two step holes are concavely arranged on the abutting plate, the stepped hole comprises a first hole and a second hole which are communicated, the first hole is adjacent to the seat plate, the second hole is adjacent to the lower forming die, the diameter of the first hole is larger than that of the second hole, a limit step is formed between the first hole and the second hole, a rebound column is movably arranged in the step hole, a third limit plate is annularly arranged on the rebound column and is abutted against the limit step, one end of the rebound column selectively extends out of the abutting plate from the second hole, the other end of the rebound column is limited in the first hole, the first hole is internally provided with a first spring, the first spring is sleeved outside the rebound column, and the first spring always has a movement trend of driving the rebound column to extend out of the abutting plate.

As a preferable scheme of the cone forming mold, a cap is arranged on one side of the abutting plate close to the seat plate, the cap is fixed on the abutting plate through a screw, and the first spring is blocked in the first hole by the cap.

As a preferable scheme of the cone forming mold, a protection convex part is annularly and convexly arranged on the abutting plate, the protection convex part is inserted into the protection groove, and the outer circle flanging is clamped between the protection convex part and the groove wall of the protection groove.

As a preferable scheme of the cone forming die, the tapered forming plate comprises a first forming plate, one side of the first forming plate is connected with the second upper die base, the other side of the first forming plate is detachably provided with a second forming plate, a groove is concavely arranged on one side, far away from the first forming plate, of the second forming plate, a third forming plate is installed in the groove, and tapered surfaces are arranged on the peripheries of the first forming plate and the second forming plate.

The utility model discloses beneficial effect does: the upper forming die and the lower forming die are made of split structures, so that the manufacturing difficulty of the whole cone forming die can be reduced, the universality can be improved, and different bending templates and cone forming plates can be replaced to realize the forming of cone structures with different lengths; by arranging the protection groove, the pre-pressed outer circle flanging of the cylinder opening structure can be protected.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Fig. 1 is a structural cross-sectional view of the washing machine tub structure manufactured and molded by the method for manufacturing the washing machine tub opening structure of the present invention.

Fig. 2 is an enlarged schematic view of a portion a of fig. 1.

Fig. 3 is a schematic top view of the flanging die of the present invention.

Fig. 4 is a schematic sectional view B-B of fig. 3.

Fig. 5 is a schematic view of the state of the flanging die before die pressing.

Fig. 6 is a schematic view of the state of the flanging die in the molding process of the present invention.

Fig. 7 is a schematic view of the state of the flanging die after die pressing.

Fig. 8 is a schematic cross-sectional view of C-C of fig. 3.

Fig. 9 is an enlarged schematic view of fig. 7 at D.

Fig. 10 is a schematic plan view of the cone forming die of the present invention.

FIG. 11 is a schematic cross-sectional view E-E of FIG. 10.

Fig. 12 is a schematic view of the cone forming mold according to the present invention before molding.

Fig. 13 is a schematic view of the cone forming mold according to the present invention in the molding process.

Fig. 14 is a schematic sectional view G-G of fig. 10.

Fig. 15 is a schematic sectional view F-F of fig. 10.

Fig. 16 is an enlarged view at H of fig. 14.

Fig. 17 is a schematic structural view of the rolling and hemming device of the present invention.

Fig. 18 is a schematic structural diagram of a curling mechanism in the roll curling device of the present invention.

Fig. 19 is a schematic structural diagram of a pressing plate assembly in the roll hemming device of the present invention.

Fig. 20 is a schematic process flow diagram of the rolling and hemming device of the present invention.

Fig. 21 is a process flow diagram of a method for manufacturing a tub opening structure of a washing machine according to the present invention.

In the figure:

100. a drum; 200. a rotating shaft; 300. a cylinder opening structure; 310. a cylinder opening; 301. a cylinder port plate body; 302. Flanging the outer circle; 303. a pyramidal structure; 304. a crimping structure; 320. a front closing plate; 400. a plate material; 500. A first green body; 600. a second green body;

700. a flanging die; 1. flanging and molding the upper die; 11. a first upper die holder; 111. a first via hole; 12. mounting a template; 121. a second via hole; 122. an extension portion; 13. a first guide hole; 2. flanging the lower die; 21. a first lower die holder; 22. a lower template; 23. a first limit plate; 24. a second limiting plate; 25. an accommodating chamber; 26. a rubber column; 27. a support plate; 271. a first accommodating groove; 28. a first guide post;

800. a cone forming die; 3. forming an upper die; 31. a second upper die holder; 311. a seat plate; 312. a mounting boss; 32. a tapered forming plate; 321. a first molding plate; 322. a second molding plate; 323. a third molding plate; 33. a propping plate; 331. a plate body; 332. a hole of abdication; 333. a limit ring plate; 334. a second guide hole; 335. a stepped bore; 336. a limiting step; 337. a protective protrusion; 34. a gas spring; 35. a second guide bar; 36. a limit baffle; 37. a rebound post; 371. a third limiting plate; 38. a first spring; 39. Capping; 4. forming a lower die; 41. a second lower die holder; 411. a tapered groove; 412. a second accommodating groove; 413. A protective groove; 42. bending the template;

900. a rolling and curling device; 5. a base; 6. a limiting seat; 61. a crimping abdication groove; 7. pressing a cover plate; 71. Hoisting the threaded hole; 72. lifting lugs; 8. a curling mechanism; 81. a mounting seat; 82. a roller seat; 821. a seat body; 822. a connecting plate; 83. a rotating shaft; 831. a shaft body; 832. a fourth limiting plate; 84. a roller; 841. rolling a groove; 85. turning a tool; 86. a connecting nut; 87. a bearing; 9. a platen assembly; 91. a support block; 92. pressing a plate; 93. a compression screw; 94. a second spring.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 21, the present invention provides a method for manufacturing a tub opening structure of a washing machine, comprising the steps of:

step S100, providing a plate 400 with a set size without leaving machining allowance;

step S200, stamping the plate 400 into an outer circle flanging 302 by adopting a flanging die 700 to form a first blank 500;

step S300, stamping the first blank body 500 into a cone structure 303 by using a cone forming die 800 to form a second blank body 600;

step S400, forming a hemming structure 304 on the second blank 600 by rolling with a roller 84 to form the cylinder opening structure 300. By presetting the size of the plate 400 and directly processing without leaving allowance, the trimming operation after molding can be avoided, the operation procedures are reduced, and the manufacturing cost is saved; the outer circle flanging 302 and the cone structure 303 are formed by adopting a die in a stamping mode, so that the forming quality is good, the processing speed is high, and the surface of the cylinder opening structure 300 is not damaged; by forming the rolled edge structure 304 by rolling the roller 84, the striking mode can be avoided, the surface of the cylinder opening structure 300 can be prevented from being damaged, and no noise is generated.

In one embodiment, when the size of the plate 400 is set, the amount of extension is determined according to the material of the plate 400 and subtracted. The sheet material 400 made of the metal material can be extended due to the characteristics of the material when being stamped, and the extension amount is the extension amount, so that the extension amount is deducted when the sheet material 400 is set to be in a size, the size of the cylinder opening structure 300 formed by stamping of the die can be ensured to meet the requirements, the trimming operation is not required, partial operation procedures are omitted, the production efficiency is improved, and most importantly, the cost is saved.

In one embodiment, step S400 includes the following steps:

step S410, moving the roller 84 to the position of the cone-shaped structure 303 along the horizontal direction, and applying pressure to press the roller 84 against the edge of the cone-shaped structure 303, so as to bend and deform the cone-shaped structure 303;

step S420, driving the roller 84 to move circumferentially along the outer circumference of the cone structure 303 in a horizontal plane to form the crimping structure 304.

The operation mode can ensure that the roller 84 can roll the hemming structure 304 with uniform structure, and the production quality of the product is improved.

In this embodiment, step S430 is provided after step S420, and a machining process is performed on the outer burring 302 by using a vertical lathe.

Further, the roller 84 rotates on its axis of the rotation shaft 83 connected to the roller 84 while performing a circumferential motion along the outer periphery of the conical structure 303. The spinning roller 84 can reduce friction with the surface of the conical structure 303, and prevent the roller 84 from damaging the surface of the conical structure 303.

As shown in fig. 1 to 20, an embodiment of the present invention further provides a manufacturing apparatus for a cylinder opening structure of a washing machine, which includes an oil press (not shown in the drawings), a workbench (not shown in the drawings) and a vertical lathe (not shown in the drawings), wherein a flanging die 700, a cone forming die 800 and a rolling and curling device 900 are arranged on the workbench at intervals, the flanging die 700 includes an upper flanging die 1 and a lower flanging die 2, the upper flanging die 1 is connected to a first output shaft of the oil press to realize vertical movement, the lower flanging die 2 is fixed on the workbench, the cone forming die 800 includes an upper forming die 3 and a lower forming die 4, the upper forming die 3 is connected to a second output shaft of the oil press to realize vertical movement, the lower forming die 4 is fixed on the workbench, the rolling and curling device 900 includes a base 5 and a curling mechanism 8, the base 5 is fixed on the workstation, can dismantle the structure that is provided with tight cylinder mouth structure 300 on the base 5, curling mechanism 8 includes mount pad 81, mount pad 81 install in on the knife rest of merry go round machine bed, mount pad 81 sets up the base 5 top, selectively set up gyro wheel seat 82 or lathe tool 85 on the mount pad 81, it is provided with gyro wheel 84 to rotate through axis of rotation 83 on the gyro wheel seat 82, the axis perpendicular to horizontal plane of axis of rotation 83. The utility model discloses a washing machine jar mouth structure manufacture equipment can be in proper order compression molding jar mouth structure 300's excircle turn-ups 302, cone structure 303 and turn-up structure 304, compression molding's is of high quality, jar mouth structure 300's surface not damaged, and the size is unbiased, and the product yield is high.

As shown in fig. 3 to 9, the flanging upper die 1 of the flanging die 700 includes a first upper die holder 11 and an upper die plate 12 detachably disposed on a lower surface of the first upper die holder 11; the flanging lower die 2 is arranged below the flanging upper die 1, the flanging lower die 2 comprises a first lower die holder 21, a lower die plate 22 and a first limiting plate 23, the lower die plate 22 and the first limiting plate 23 can be detachably arranged on the upper surface of the first lower die holder 21, the first limiting plate 23 is annularly arranged on the periphery of the lower die plate 22, and the height of the first limiting plate 23 is greater than that of the lower die plate 22; the upper die plate 12 can move into the first limiting plate 23, and a gap is formed between the outer peripheral wall of the upper die plate 12 and the inner hole wall of the first limiting plate 23, wherein the gap is larger than the thickness of the cylinder opening structure 300. Through all adopting split type structure with turn-ups mould 700's last mould and lower mould, can change different cope match-plate pattern 12 and lower bolster 22 and first limiting plate 23 and realize the shaping of the excircle turn-ups 302 of the jar mouth structure 300 of unidimensional, promote whole turn-ups mould 700's commonality, and split type turn-ups is gone up mould 1 and turn-ups lower mould 2 and is convenient for make more, can effectively reduce turn-ups mould 700's manufacturing cost.

In an embodiment, the upper surface of the first lower die holder 21 is further provided with a second limiting plate 24, the peripheral wall of the second limiting plate 24 and the inner hole wall of the first limiting plate 23 are separated to form a containing cavity 25 for containing the lower die plate 22, the lower die plate 22 is movably arranged in the containing cavity 25, and in an initial state, the upper surface of the lower die plate 22 is flush with the upper surface of the first limiting plate 23, and in a die pressing state, the upper surface of the lower die plate 22 is flush with the upper surface of the second limiting plate 24. Through the first limiting plate 23 and the second limiting plate 24 that set up the height structure, panel 400 before the mould pressing can be supported to first limiting plate 23, and second limiting plate 24 is used for limiting the first body 500 after the mould pressing (the structure behind panel 400 punching excircle turn-ups 302 promptly), can cooperate the mould pressing operation of whole panel 400.

In this embodiment, a plurality of elastic members are annularly disposed in the accommodating cavity 25, and the elastic members drive the lower template 22 to be always in the initial state. Through setting up the elastic component, can make the first body 500 after the mould pressing demold more easily, withdraw from back as cope match-plate pattern 12, do not have the back for the decurrent effort of lower bolster 22, the elasticity of elastic component can drive lower bolster 22 upward movement, and then the first body 500 of bearing upward movement.

Preferably, the elastic member is a rubber column 26, and two ends of the rubber column 26 are respectively connected with the bottom of the accommodating cavity 25 and the lower template 22. The rubber column 26 has certain elasticity and a supporting plane, can provide enough resilience force for the lower template 22, and can also ensure that the lower template 22 is driven to move stably; through being connected the both ends with rubber column 26 respectively with the chamber bottom and the lower bolster 22 that hold chamber 25, can prevent that lower bolster 22 and rubber column 26 from taking place great position and removing, and then guarantee that the mould pressing operation of panel 400 can go on smoothly.

Further, the rubber column 26 is respectively connected with the bottom of the accommodating cavity 25 and the lower template 22 through screws, and the screws do not protrude from the upper surface of the lower template 22. The screw connection mode can be convenient for disassembly and assembly, and the screw does not protrude out of the upper surface of the lower template 22, so that the surface of the first blank 500 formed by die pressing can be ensured to be flat.

The size of the rubber column 26 is smaller than that of the accommodating cavity 25, and the outer wall of the rubber column 26 is spaced from the cavity wall of the accommodating cavity 25. This design can provide the space for the deformation that takes place when the rubber column 26 compresses, guarantees that rubber column 26 can be normal deformation power storage.

In an embodiment, a supporting plate 27 is disposed on the first die holder 21, a first receiving groove 271 is annularly formed in the supporting plate 27, the first receiving groove 271 is communicated with the receiving cavity 25, the width of the first receiving groove 271 is greater than that of the receiving cavity 25, the supporting plate 27 is fixed on the first die holder 21 by screws, and the first limiting plate 23 and the second limiting plate 24 are respectively disposed on two sides of the first receiving groove 271 and connected to the supporting plate 27 by screws. Through setting up backup pad 27, can avoid adopting the first die holder 21 of thicker plate preparation, reduce material cost, also can change backup pad 27, first limiting plate 23 and second limiting plate 24 according to the jar mouth structure 300 of difference simultaneously, prevent that whole mould from changing, reduce mould cost.

In an embodiment, the first limiting plate 23 is convexly provided with a first guiding column 28, and the first upper die holder 11 is provided with a first guiding hole 13 for the first guiding column 28 to be inserted. Through setting up first guide post 28 and first guiding hole 13, can lead the removal of first upper die base 11 and cope match-plate pattern 12, precision when promoting the punching press.

A threaded hole is formed in the first limiting plate 23, an external thread is arranged at the lower end of the first guide column 28, and the lower end of the first guide column 28 is screwed in the threaded hole. The first guide post 28 is fixed in a threaded manner, so that the first guide post 28 can be disassembled and assembled simply, and the first guide post 28 with different lengths can be replaced conveniently.

A first through hole 111 is formed in the center of the first upper die holder 11, a second through hole 121 is formed in the center of the upper die plate 12, and an extending portion 122 is formed by extending the hole wall of the second through hole 121 toward the hole wall of the first through hole 111. Through the arrangement of the first via hole 111 and the second via hole 121, the weight and material consumption of the flanging upper die 1 can be reduced, the cost is saved, and in addition, the matching accuracy of the upper die plate 12 and the first upper die holder 11 can be improved through the matching of the extension portion 122 and the first via hole 111, so that the assembly of the upper die plate 12 and the first upper die holder 11 is facilitated.

As shown in fig. 10 to 16, the upper molding die 3 of the cone molding die 800 includes a second upper die holder 31 and a detachable tapered molding plate 32, a tightening plate 33 is disposed on the periphery of the tapered molding plate 32, and the tightening plate 33 is movable in the vertical direction relative to the second upper die holder 31; the shaping lower mould 4 sets up the below of mould 3 in the shaping, shaping lower mould 4 includes second die holder 41, the middle part of second die holder 41 is equipped with bell jar 411, the main aspects intercommunication of bell jar 411 the up end of second die holder 41, the tip of bell jar 411 with the lower terminal surface interval of second die holder 41 forms second holding tank 412, can dismantle in the second holding tank 412 and set up template 42 of bending, the upper surface of second die holder 41 is provided with protection groove 413 for excircle turn-ups 302. The upper forming die 3 and the lower forming die 4 are made of split structures, so that the manufacturing difficulty of the whole cone forming die 800 can be reduced, the universality can be improved, and different bending die plates 42 and different cone forming plates 32 can be replaced to realize the forming of cone structures 313 with different lengths; by providing the protection groove 413, the previously pressed outer flange 302 of the cylinder opening structure 300 can be protected.

In one embodiment, the second upper die holder 31 includes a seat plate 311 and a mounting protrusion 312 protruding from one side of the seat plate 311, the tapered forming plate 32 is detachably mounted on the mounting protrusion 312, a plurality of gas springs 34 are disposed on the seat plate 311 around the mounting protrusion 312, and power ends of the gas springs 34 are connected to the abutting plates 33. The gas spring 34 is arranged to push the abutting plate 33 to move along the vertical direction, so that prepressing and fixing of the first blank 500 (the plate 400 after the outer flanging 302) on the second lower die holder 41 can be realized, the first blank 500 is prevented from shifting in the die pressing process, and the precision of the compression-molded cone structure 303 is ensured.

In this embodiment, the gas spring 34 is a nitrogen gas spring.

In an embodiment, the fastening plate 33 includes a plate body 331, the center of the plate body 331 is provided with a yielding hole 332, one side of the plate body 331 close to the installation convex portion 312 is convexly provided with a limit ring plate 333, an inner hole wall of the limit ring plate 333 is flush with a hole wall of the yielding hole 332, and the installation convex portion 312 and the tapered forming plate 32 can pass through the limit ring plate 333 and the yielding hole 332 and be located in the tapered groove 411.

In this embodiment, the tapered forming plate 32 is always located within the stop ring plate 333. The stop ring plate 333 guides the movement of the tapered forming plate 32.

In an embodiment, the second guide rods 35 are disposed at intervals on one side of the gas spring 34, the end portions of the second guide rods 35 are screwed with the limit baffles 36, the tightening plate 33 is provided with second guide holes 334, the second guide rods 35 penetrate through the second guide holes 334, and the limit baffles 36 are disposed on one side of the tightening plate 33 away from the seat plate 311. The limiting baffle 36 can prevent the abutting plate 33 from being separated from the second guide rod 35, and limit the abutting plate 33 to only move on the second guide rod 35, so that the abutting plate 33 can move along with the second upper die base 31 while the pre-tightening work can be completed.

In one embodiment, the fastening plate 33 is at least concavely provided with two step holes 335, the step holes 335 include a first hole and a second hole which are communicated with each other, the first hole is adjacent to the seat plate 311, the second hole is adjacent to the lower molding die 4, the diameter of the first hole is larger than that of the second hole, a limit step 336 is formed between the first hole and the second hole, a rebound column 37 is movably arranged in the stepped hole 335, a third limit plate 371 is annularly arranged on the rebound column 37, the third limiting plate 371 abuts against the limiting step 336, one end of the resilient column 37 selectively extends out of the abutting plate 33 from the second hole, the other end of the resilient leg 37 is confined within the first bore, within which is disposed a first spring 38, the first spring 38 is sleeved outside the resilient column 37, and the first spring 38 always has a movement tendency of driving the resilient column 37 to extend out of the abutting plate 33. By providing the combination structure of the step hole 335, the resilient column 37 and the first spring 38, when the second blank 600 is pressed and molded, and the gas spring 34 is withdrawn, the resilient column 37 is pushed by the elastic force of the first spring 38 to extend out of the abutting plate 33, so as to assist in demolding.

In this embodiment, a cap 39 is disposed on a side of the fastening plate 33 close to the seat plate 311, the cap 39 is fixed to the fastening plate 33 by a screw, and the first spring 38 is blocked in the first hole by the cap 39. By arranging the detachable cap 39, the installation of the first spring 38 and the rebound post 37 can be facilitated, and the first spring 38 and the rebound post 37 can be limited from being separated from the step hole 335 of the abutting plate 33, so that the accumulation of the rebound post 37 and the auxiliary demoulding operation are ensured not to be failed.

In an embodiment, the abutting plate 33 is provided with a protection convex portion 337 in an annular protruding manner, the protection convex portion 337 is inserted into the protection groove 413, and the outer flanging 302 is clamped between the protection convex portion 337 and a groove wall of the protection groove 413. Through setting up protection convex part 337, can protect excircle turn-ups 302, prevent the mould pressing in-process, excircle turn-ups 302 is pulled and takes place to warp.

In one embodiment, the tapered forming plate 32 includes a first forming plate 321, one side of the first forming plate 321 is connected to the second upper die holder 31, the other side is detachably provided with a second forming plate 322, a groove is recessed on one side of the second forming plate 322, which is far away from the first forming plate 321, a third forming plate 323 is installed in the groove, and tapered surfaces are provided on the peripheries of the first forming plate 321 and the second forming plate 322. By assembling and forming the tapered forming plate 32 by a plurality of forming plates, the manufacturing cost can be reduced, and the tapered forming plate 32 is not manufactured by adopting an ultra-thick plate.

As shown in fig. 17 to 20, the structure detachably disposed on the base 5 for clamping the cylinder opening structure 300 includes a limiting seat 6 and a gland plate 7, the limiting seat 6 and the gland plate 7 are detachably disposed on the base 5, the gland plate 7 is annularly disposed on the periphery of the limiting seat 6, the periphery of the limiting seat 6 and the inner hole wall of the gland plate 7 are both tapered surfaces matched with the tapered structure 303 of the cylinder opening structure 300, and the tapered structure 303 is sandwiched between the limiting seat 6 and the gland plate 7; hemming mechanism 8 the mount pad 81 can realize the removal of level and vertical direction and follow under actuating mechanism (the actuating mechanism of the knife rest of merry go round machine bed)'s drive the rotatory rotary motion in center of base 5, the mount pad 81 sets up base 5 top, selectively set up gyro wheel seat 82 or lathe tool 85 on the mount pad 81, it is provided with gyro wheel 84 to rotate through axis of rotation 83 on the gyro wheel seat 82, the axis perpendicular to horizontal plane of axis of rotation 83. By arranging the mounting seat 81 which can move horizontally and vertically and rotate, and installing the roller seat 82 or the turning tool 85 on the mounting seat 81 according to requirements, the end part of the cone structure 303 can be curled by using the roller 84 on the roller seat 82 to form a curled structure 304, and the cylinder opening structure 300 can be machined by using the turning tool 85; through can dismantling the setting on base 5 with spacing seat 6 and gland plate 7, can change the processing of spacing seat 6 and gland plate 7 in order to realize different jar mouth structures 300 of difference, promoted whole roll extrusion hemming device 900's commonality.

In one embodiment, the roller 84 is recessed with a rolling groove 841. The formation of the crimping structure 304 may be facilitated by the provision of the rolled groove 841. In this embodiment, the rolling groove 841 is an arc-shaped groove. By providing the rolled groove 841 as an arc-shaped groove, damage to the surface of the cylinder port structure 300 can be reduced by the arc-shaped surface.

In one embodiment, the roller seat 82 includes a seat body 821, the seat body 821 is detachably connected to the mounting seat 81 through a screw, two parallel connection plates 822 are disposed at an interval at one end of the seat body 821, connection holes are formed in the connection plates 822, the rotating shaft 83 includes a shaft body 831, a fourth limiting plate 832 is disposed at one end of the shaft body 831, the other end of the shaft body 831 sequentially penetrates through the two connection holes and is rotatably connected to a connection nut 86, a bearing 87 is disposed on the shaft body 831, the roller 84 is connected to the shaft body 831 through the bearing 87, and an outer peripheral wall of the roller 84 is disposed at an interval with the seat body 821. The roller mount 82 of this design may facilitate the replacement of different rollers 84 to form different crimping structures 304.

In one embodiment, the limiting seat 6 is fixed on the base 5 through screws, at least two pressure plate assemblies 9 are annularly arranged on the periphery of the pressure cover plate 7, and the pressure plate assemblies 9 press the pressure cover plate 7 on the base 5. Through setting up clamp plate assembly 9, can compress tightly fixedly to gland board 7, prevent that gland board 7 from taking place to remove along vertical and horizontal direction.

In this embodiment, the pressing plate assembly 9 includes a supporting block 91 and a pressing plate 92, the supporting block 91 is fixed on the base 5 by screws, a through hole is formed at a non-end position of the pressing plate 92, a pressing screw 93 penetrates through the through hole and is screwed in a threaded hole of the base 5, and two ends of the pressing plate 92 respectively abut against the upper end surfaces of the pressing cover plate 7 and the supporting block 91.

Preferably, a second spring 94 is sleeved outside the compression screw 93, one end of the second spring 94 abuts against the base 5, and the other end abuts against one side surface of the pressure plate 92 close to the base 5.

In one embodiment, the platen assembly 9 is removably mounted to the platen plate 7. When the turning tool 85 is installed on the installation seat 81, the pressing plate assembly 9 is movably installed on the pressing cover plate 7, the outer flanging 302 of the cylinder opening structure 300 is exposed for machining, and the pressing plate assembly 9 is prevented from blocking machining operation.

In one embodiment, at least two lifting threaded holes 71 are annularly formed in the gland plate 7, and lifting lugs 72 are screwed into the lifting threaded holes 71. Lifting lugs 72 are arranged, so that lifting tools such as a crane can move the gland plate 7 conveniently, and the operation difficulty is reduced.

Furthermore, the upper end face of the limiting seat 6 is concavely provided with a crimping abdicating groove 61. By providing the crimping relief groove 61, the upper end surface of the stopper 6 can be prevented from blocking the movement of the roller 84, and the crimping operation can be smoothly performed.

In the description herein, it is to be understood that the terms "upper" and "lower" are used in an orientation or positional relationship shown in the drawings for convenience of description and simplicity of operation, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, configuration or operation, and are not to be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used merely for descriptive purposes and are not intended to have any special meaning.

In the description herein, references to the description of "an embodiment," "an example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be appropriately combined to form other embodiments as will be appreciated by those skilled in the art.

The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.

Claims (10)

1. A cone forming die, comprising:

the upper forming die can move in the vertical direction and comprises a second upper die base and a detachable conical forming plate, a pressing plate is arranged on the periphery of the conical forming plate, and the pressing plate can move in the vertical direction relative to the second upper die base;

the shaping lower mould sets up the below of mould in the shaping, the shaping lower mould includes the second die holder, the middle part of second die holder is equipped with the bell jar, the main aspects intercommunication of bell jar the up end of second die holder, the tip of bell jar with the lower terminal surface interval of second die holder forms the second holding tank, can dismantle in the second holding tank and set up the template of bending, the upper surface of second die holder is provided with the protection groove for the excircle turn-ups.

2. The cone forming die of claim 1, wherein the second upper die base comprises a base plate and a mounting convex portion protruding from one side of the base plate, the cone forming plate is detachably mounted on the mounting convex portion, a plurality of gas springs are arranged on the base plate and surround the mounting convex portion, and power ends of the gas springs are connected with the abutting plate.

3. The cone forming die of claim 2, wherein the gas spring is an ammonia gas spring.

4. The cone forming die of claim 2, wherein the abutting plate comprises a plate body, a step hole is formed in the center of the plate body, a limit ring plate is convexly arranged on one side of the plate body close to the mounting convex portion, the inner hole wall of the limit ring plate is flush with the hole wall of the step hole, and the mounting convex portion and the cone forming plate can penetrate through the limit ring plate and the step hole to be located in the cone groove.

5. The cone-forming die of claim 4 wherein the conical forming plate is located within the retainer ring plate at all times.

6. The cone forming die of claim 2, wherein a second guide rod is disposed at an interval on one side of the gas spring, a limit baffle is screwed on an end of the second guide rod, a second guide hole is formed on the tightening plate, the second guide rod penetrates through the second guide hole, and the limit baffle is disposed on a side of the tightening plate away from the seat plate.

7. The cone forming die of claim 2, wherein the abutting plate is at least concavely provided with two stepped holes, the stepped hole comprises a first hole and a second hole which are communicated, the first hole is adjacent to the seat plate, the second hole is adjacent to the lower forming die, the diameter of the first hole is larger than that of the second hole, a limit step is formed between the first hole and the second hole, a rebound column is movably arranged in the step hole, a third limit plate is annularly arranged on the rebound column and is abutted against the limit step, one end of the rebound column selectively extends out of the abutting plate from the second hole, the other end of the rebound column is limited in the first hole, the first hole is internally provided with a first spring, the first spring is sleeved outside the rebound column, and the first spring always has a movement trend of driving the rebound column to extend out of the abutting plate.

8. The cone forming die of claim 7, wherein a cap is disposed on a side of the tightening plate close to the seat plate, the cap is fixed to the tightening plate by a screw, and the first spring is blocked in the first hole by the cap.

9. The cone forming die of any one of claims 1 to 8, wherein a protection convex portion is annularly and convexly arranged on the abutting plate, the protection convex portion is inserted into the protection groove, and the outer flanging is clamped between the protection convex portion and a groove wall of the protection groove.

10. The cone forming die of any one of claims 1 to 8, wherein the tapered forming plate comprises a first forming plate, one side of the first forming plate is connected with the second upper die base, the other side of the first forming plate is detachably provided with a second forming plate, a groove is concavely arranged on one side of the second forming plate, which is far away from the first forming plate, a third forming plate is arranged in the groove, and tapered surfaces are arranged on the peripheries of the first forming plate and the second forming plate.

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