A stretch forming apparatus for producing a kettle

Abstract

The utility model belongs to kettle production technical field, concretely is a kind of production kettle and is drawn into shape device, including the loading assembly of the core component of installable device, setting up the shaping assembly of the blank material that can be drawn into shape to kettle blank on loading assembly, still setting up the positioning assembly of the blank rectification and automatic ejection stretch finished product on loading assembly.The utility model is convenient to integrate multiple rectification means on the lifting vice disc with ejection function, so that the rectification block is limited by limiting rod, spring limit, and the position can be accurately adjusted by reset piece according to blank size, can form limit during blank placement stage, and continuously provide flexible pressure during subsequent drawing forming process, realize the positioning, rectification of blank, effectively inhibit blank deviation phenomenon, and guarantee forming quality.

Description

Technical Field

[0001] This utility model belongs to the field of kettle manufacturing technology, specifically relating to a stretch forming device for producing kettles. Background Technology

[0002] The stretch forming device is the core equipment in the manufacturing of stainless steel kettles. Its function is to drive the mold to force the flat blank into the cavity mold, causing plastic deformation to form a hollow kettle body, thereby efficiently and in large quantities producing kettle blanks with uniform shape and compact structure.

[0003] Chinese patent document CN219378615U discloses a stainless steel kettle blank stretching and forming device, including a base, a stretching hydraulic press, and upper and lower molds. During operation, the upper mold is pressed down under the drive of the hydraulic press, cooperating with the lower mold to complete the stretching and forming of the blank. Subsequently, the ejection mechanism pushes the formed kettle body upward to achieve demolding. The device also improves processing conditions through a built-in lubrication system.

[0004] However, in the existing technology, stretch forming devices generally lack the function of correcting blank deviation. Even if an automated feeding system is used for initial positioning, the blank is still prone to slight deviation before mold closing due to mechanical clearance, external vibration and other factors. This eventually leads to problems such as wall thickness deviation or even tearing after the product is molded. Therefore, a stretch forming device for producing kettles is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a stretch forming device for producing kettles.

[0006] The technical solution adopted in this utility model is as follows:

[0007] A stretch forming apparatus for producing kettles includes a loading assembly on which the core components of the apparatus can be installed. The loading assembly is provided with a shaping assembly that can stretch the kettle blank into shape. The loading assembly is also provided with a positioning assembly that can correct the deviation of the blank and automatically eject the stretched finished product.

[0008] The loading components include a platform;

[0009] The shaping component includes a positioning seat fixedly mounted on the support platform, and a lower mold fixedly mounted above the positioning seat;

[0010] The positioning components include an ejector with an initial height flush with the upper edge of the lower mold, multiple correction components that can clamp the blank to prevent it from shifting, and a reset component that can simultaneously adjust the position of each correction component to place the blank.

[0011] The ejector includes multiple telescopic rods fixedly connected to the side of the support platform. A lifting main plate coaxial with the lower mold is fixedly connected between the telescopic ends of the telescopic rods. A lifting auxiliary plate is fixedly connected above the lifting main plate.

[0012] The correction component includes multiple limit rods fixedly installed inside the lifting sub-plate. A correction block is movably connected to the outer side of the limit rod. A spring is sleeved on the limit rod on the side of the correction block away from the lower mold. An insert rod is fixedly connected below the correction block.

[0013] Preferably, the ejector also includes multiple leakage grooves provided on the lower side of the lifting main plate, two limiting grooves provided on the outer side of the lifting main plate, and guide grooves provided on the lifting auxiliary plate.

[0014] Preferably, the reset component includes a turntable movably installed inside the lifting main plate. The turntable has multiple arc-shaped grooves and multiple leakage holes integrally formed on it. The outer side of the turntable is fixedly connected with screws that pass through two limiting grooves respectively, and a handle is threaded onto the screws.

[0015] Preferably, the positioning seat, lower mold, lifting main plate, and lifting auxiliary plate are all coaxial, and multiple telescopic rods are arranged at equal angular intervals around the axis of the positioning seat.

[0016] Preferably, the lifting main plate is rotatably connected to the turntable.

[0017] Preferably, the lifting sub-plate and the limit rod are slidably connected to the correction block.

[0018] Preferably, the limiting groove matches the screw, the guide groove matches the correction block, and the arc-shaped groove matches the insertion rod.

[0019] Preferably, the number of guide grooves and limit rods are the same, the axis of the lifting sub-disc is perpendicular to the axis of the limit rod, and multiple guide grooves are arranged at equal angular intervals around the axis of the lifting sub-disc.

[0020] The beneficial effects of this utility model are as follows: By integrating multiple correction components on the lifting sub-plate with ejection function, the correction block, which is limited by the limiting rod and spring and whose position can be precisely adjusted by the reset component according to the size of the blank, can form a limit during the blank placement stage and continuously provide flexible resistance during the subsequent stretching and forming process, thereby realizing the positioning and correction of the blank, effectively suppressing the blank deviation phenomenon and ensuring the forming quality. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of a stretch forming device for producing kettles according to the present invention;

[0023] Figure 2 This is a schematic diagram of the main structure of a stretch forming device for producing kettles according to the present invention;

[0024] Figure 3 yes Figure 1 Schematic diagram of some component structures;

[0025] Figure 4 yes Figure 3 Schematic diagram of some component structures;

[0026] Figure 5 yes Figure 4 Schematic diagram of some of the exploded components;

[0027] Figure 6 yes Figure 4 A schematic diagram of the structure at point A.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Loading assembly; 101. Support platform; 102. Upright pole; 103. Carrier platform; 2. Shaping assembly; 201. Positioning seat; 202. Hydraulic cylinder; 203. Lifting frame; 204. Lower mold; 205. Upper mold; 3. Positioning assembly; 301. Telescopic rod; 302. Lifting main platen; 303. Lifting auxiliary platen; 304. Leakage groove; 305. Limiting groove; 306. Guide groove; 307. Turntable; 308. Arc groove; 309. Leakage hole; 310. Screw; 311. Handle; 312. Limiting rod; 313. Correction block; 314. Spring; 315. Insert rod. Detailed Implementation

[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] The present invention will be further described below with reference to the embodiments and accompanying drawings.

[0033] like Figures 1-6 As shown, a stretch forming device for producing kettles includes a loading assembly 1 on which the core components of the device can be installed. The loading assembly 1 is provided with a shaping assembly 2 that can stretch the kettle blank into shape. The loading assembly 1 is also provided with a positioning assembly 3 that can correct the deviation of the blank and automatically eject the stretched finished product.

[0034] In this embodiment: the loading component 1 includes a support platform 101, a plurality of uprights 102 are fixedly connected to the upper side of the support platform 101, and a carrier 103 is fixedly connected to the upper end of the uprights 102.

[0035] The support platform 101 provides installation positions for components such as the positioning seat 201 and the telescopic rod 301. The upright 102 sets the platform 103 at a certain height above the support platform 101. The upright 102 can also limit the lifting frame 203. The platform 103 provides installation positions for the hydraulic cylinder 202.

[0036] In this embodiment: the shaping component 2 includes a positioning seat 201 fixedly installed on the support platform 101, a hydraulic cylinder 202 fixedly installed above the platform 103, a lifting frame 203 fixedly connected to the telescopic end of the hydraulic cylinder 202, a lower mold 204 fixedly installed above the positioning seat 201, and an upper mold 205 coaxial with the lower mold 204 fixedly installed below the lifting frame 203.

[0037] The upright 102 is slidably connected to the lifting frame 203. The positioning seat 201 and the lifting frame 203 provide installation positions for the matching lower mold 204 and upper mold 205, respectively. The lower mold 204 and the upper mold 205 form a cavity for plastic deformation of the billet. The lifting frame 203 transmits the pressure from the hydraulic cylinder 202 to the upper mold 205 to realize the height change of the upper mold 205 and enable the upper mold 205 to cooperate with the lower mold 204 to apply pressure to the billet.

[0038] In this embodiment: the positioning component 3 includes an ejector with an initial height flush with the upper edge of the lower mold 204, multiple correction components that can clamp the blank to prevent it from shifting, and a reset component that can synchronously adjust the position of each correction component so that the blank can be placed.

[0039] The ejector assembly includes multiple telescopic rods 301 fixedly connected to the upper side of the support platform 101. A lifting main plate 302, coaxial with the lower mold 204, is fixedly connected between the telescopic ends of the telescopic rods 301. A lifting auxiliary plate 303 is fixedly connected above the lifting main plate 302. Multiple leakage grooves 304 are provided on the lower side of the lifting main plate 302. Two limiting grooves 305 are provided on the outer surface of the lifting main plate 302. A guide groove 306 is provided on the lifting auxiliary plate 303. The reset assembly includes a turntable 307 movably installed inside the lifting main plate 302. Multiple... An arc-shaped groove 308, a turntable 307 integrally formed with multiple leakage holes 309, a screw 310 fixedly connected to the outer side of the turntable 307 respectively passing through two limiting grooves 305, a handle 311 threadedly connected to the screw 310, the correction component includes multiple limiting rods 312 fixedly installed in the lifting sub-disc 303, a correction block 313 movably connected to the outer side of the limiting rod 312, a spring 314 sleeved on the limiting rod 312 on the side of the correction block 313 away from the lower mold 204, and an insert rod 315 fixedly connected below the correction block 313;

[0040] The positioning seat 201, lower mold 204, lifting main plate 302, and lifting secondary plate 303 are all coaxial. Multiple telescopic rods 301 are arranged at equal angular intervals around the axis of the positioning seat 201. The lifting main plate 302 is rotatably connected to the turntable 307. The lifting secondary plate 303 and the limiting rod 312 are slidably connected to the correction block 313. The limiting groove 305 is engaged with the screw 310. The guide groove 306 is engaged with the correction block 313. The arc groove 308 is engaged with the insertion rod 315. The number of guide grooves 306 is the same as that of the limiting rod 312. The axis of the lifting secondary plate 303 is perpendicular to the axis of the limiting rod 312. Multiple guide grooves 306 are arranged at equal angular intervals around the axis of the lifting secondary plate 303.

[0041] The assembled main lifting plate 302 and auxiliary lifting plate 303 are mounted by means of the telescopic rod 301 with a built-in elastic element that causes its telescopic end not subjected to external force to have a tendency to move upward toward the carrier 103, so that the main lifting plate 302 and the auxiliary lifting plate 303 have an upward tendency when not subjected to external force. The lubricating fluid flowing into the main lifting plate 302 through the guide groove 306 can naturally flow out via the liquid leakage groove 304 and the liquid leakage hole 309 (the lubricating fluid is provided by the lubrication system supporting the stretch forming device, and functions to form an isolation film between the die and the blank, so as to greatly reduce friction and prevent the blank from being cracked by stretching and surface scratching. Since the lubrication system is not an innovative part of the present application and is well-established prior art in the technical field, it will not be elaborated further). The limiting groove 305 allows the screw 310 to pass through the side wall of the main lifting plate 302 and then connect to the turntable 307, and the limiting groove 305 can also limit the rotation amplitude of the screw 310 around the axis of the main lifting plate 302. The guide groove 306 cooperates with the limiting rod 312 to limit the position of the deviation correcting block 313. The grip 311, which can rotate around the axis of the screw 310, makes it easy for the staff to rotate the turntable 307, and the sequentially rotated grip 311 can lock the rotation of the turntable 307 through the change in the magnitude of friction between itself and the outer side surface of the main lifting plate 302. The spring 314 causes the deviation correcting block 313 not subjected to external force to have a tendency to move toward the lower die 204. Through the insertion rod 315 inserted into the arc-shaped groove 308, the deviation correcting block 313 can move correspondingly along the limiting rod 312 when the turntable 307 rotates.

[0042] Working principle: When the present device is completely installed and used for the stretch forming work of kettle production, the turntable 307 can be horizontally rotated via the grip 311, so that through the change of the contact position between the insertion rod 315 and the arc-shaped groove 308, the deviation correcting blocks 313 are driven to move along the length direction of the limiting rod 312 in the direction away from the lower die 204, so that there is sufficient space between each deviation correcting block 313 for the blank to be placed on the auxiliary lifting plate 303. After the blank is placed, the grip 311 can be released. At this time, under the action of the spring 314, each deviation correcting block 313 will move toward the blank and drive the turntable 307 to rotate. After each deviation correcting block 313 is in full contact with the outer side surface of the blank, it indicates that the blank has completed positioning under the condition of limited offset. At this time, the hydraulic cylinder 202 can drive the lifting frame 203 to descend, so that the upper die 205 can move toward the blank, and cooperate with the lower die 204 to stretch and form the blank;

[0043] During the stretching process, the upper die 205 simultaneously presses down on the lifting sub-plate 303, causing it to decrease in height and the telescopic rod 301 to shorten. However, when the upper die 205 resets, the lifting sub-plate 303 will move upward again under the action of the telescopic rod 301. Therefore, after the blank is stretched, the lifting sub-plate 303 will be no longer under the pressure of the upper die 205 and will push the finished product pressed onto the lower die 204 upward. After the upper die 205 resets to its initial position, the operator can rotate the turntable 307 again using the handle 311 to quickly remove the stretched finished product and place and position subsequent blanks.

[0044] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A stretch forming apparatus for producing kettles, characterized in that: The device includes a loading assembly (1) on which the core components of this device can be installed. The loading assembly (1) is provided with a shaping assembly (2) that can stretch the pot-making blank into shape. The loading assembly (1) is also provided with a positioning assembly (3) that can correct the deviation of the blank and automatically eject the stretched finished product. The loading assembly (1) includes a platform (101); The shaping component (2) includes a positioning seat (201) fixedly installed on the support (101), and a lower mold (204) is fixedly installed above the positioning seat (201); The positioning component (3) includes an ejector with an initial height flush with the upper edge of the lower mold (204), multiple correction components that can clamp the blank to prevent it from shifting, and a reset component that can synchronously adjust the position of each correction component so that the blank can be placed. The ejector includes multiple telescopic rods (301) fixedly connected to the upper side of the support platform (101). A lifting main plate (302) coaxial with the lower mold (204) is fixedly connected between the telescopic ends of the telescopic rods (301). A lifting auxiliary plate (303) is fixedly connected above the lifting main plate (302). The correction component includes multiple limiting rods (312) fixedly installed in the lifting sub-plate (303). A correction block (313) is movably connected to the outer side of the limiting rod (312). A spring (314) sleeved on the limiting rod (312) is provided on the side of the correction block (313) away from the lower mold (204). A plug rod (315) is fixedly connected below the correction block (313).

2. The stretch forming apparatus for producing kettles according to claim 1, characterized in that: The ejector also includes multiple drain grooves (304) provided on the lower side of the lifting main plate (302), two limiting grooves (305) provided on the outer side of the lifting main plate (302), and a guide groove (306) provided on the lifting auxiliary plate (303).

3. The stretch forming apparatus for producing kettles according to claim 2, characterized in that: The reset component includes a turntable (307) movably installed inside the lifting main plate (302). The turntable (307) is provided with a plurality of arc-shaped grooves (308). The turntable (307) is integrally formed with a plurality of leakage holes (309). The outer side of the turntable (307) is fixedly connected with screws (310) that pass through two of the limiting grooves (305). The screws (310) are threaded with handles (311).

4. The stretch forming apparatus for producing kettles according to claim 1, characterized in that: The positioning seat (201), the lower mold (204), the lifting main plate (302), and the lifting auxiliary plate (303) are all coaxial, and multiple telescopic rods (301) are arranged at equal angular intervals around the axis of the positioning seat (201).

5. The stretch forming apparatus for producing kettles according to claim 3, characterized in that: The lifting main plate (302) is rotatably connected to the turntable (307).

6. The stretch forming apparatus for producing kettles according to claim 1, characterized in that: The lifting sub-plate (303) and the limiting rod (312) are both slidably connected to the correction block (313).

7. The stretch forming apparatus for producing kettles according to claim 5, characterized in that: The limiting groove (305) is matched with the screw (310), the guide groove (306) is matched with the correction block (313), and the arc groove (308) is matched with the insertion rod (315).

8. The stretch forming apparatus for producing kettles according to claim 2, characterized in that: The number of guide grooves (306) is the same as the number of limiting rods (312). The axis of the lifting sub-disc (303) is perpendicular to the axis of the limiting rod (312). Multiple guide grooves (306) are arranged at equal angular intervals around the axis of the lifting sub-disc (303).

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