A multi-model dishwasher inner container flanging machine

Abstract

This invention relates to a multi-model dishwasher inner drum flanging machine, comprising a base plate and a top plate, which are symmetrically arranged on a base. Each of the top and bottom plates has two sets of positioning supports, which extend and position the inner drum on the four supports via a guide cylinder. The top and bottom plates are respectively equipped with a pressing mechanism, a flanging mechanism, and a shaping mechanism. The pressing mechanism presses the inner drum on the positioning supports, the flanging mechanism flanging the inner drum, and the shaping mechanism shapes the flanged edge of the inner drum using shaping blocks to make the entire flanged surface flat. A multi-model changing mechanism is installed on the base. Driven by a servo motor, the top part slides on a linear guide rail, providing space for the installation and removal of the changing blocks. By replacing different models of changing blocks on the pressing, flanging, and shaping mechanisms, the flanging machine can be compatible with producing multiple models of inner drums.

Description

Technical Field

[0001] This invention relates to a sheet metal processing equipment for dishwasher inner liner, specifically to a processing equipment for a multi-model dishwasher inner liner flanging machine. Background Technology

[0002] Traditional dishwasher inner tub, see Figure 1 (a) The top plate, middle plate, and bottom plate are joined together by a seaming machine to form a bottomed cylindrical body consisting of five sides. Since the cylindrical body is already formed, a flanging machine is not required. For the newly developed inner liner, see... Figure 1 (b) consists of a top plate, a bottom plate, a left side plate, and a right side plate. After the edge-biting machine bites the edges together, a bottomless cylinder is formed. The next process requires welding the cylinder. Due to the welding process, the edge-bitten cylinder needs to be turned over. The turned-over edge is then welded to the bottom plate to form a bottomed five-sided cylinder.

[0003] The height L between the top and bottom plates varies, resulting in different dishwasher tub capacities. For compatibility with various dishwasher tub models (heights L1, L2, L3, or L4, etc.), please refer to [link / reference]. Figure 2 The newly developed flanging machine needs to have a shape-changing function. By adjusting the shape-changing block, the shape-changing needs can be met. One flanging machine can be compatible with multiple models of inner tubes with different heights.

[0004] Traditional dishwashers are limited by the interlocking process. The middle plate and top plate are interlocked, and the middle plate and bottom plate are also interlocked. The middle plate is U-shaped, and the interlocking position cannot be a right angle, but can only use a rounded transition. Due to the influence of the rounded transition, the volume of the inner tank with the same external dimensions is smaller compared with the newly developed inner tank.

[0005] The newly developed dishwasher uses a process where the top, bottom, left, and right middle panels are interlocked before being flanged and welded to the back panel. This process eliminates the need for rounded corners at the joints, and right-angle welding is used between the top and back panels, the middle and back panels, and the bottom and back panels, significantly increasing the number of dishes that can be placed. Considering the limited space in traditional Chinese kitchens, the dishwasher's compact size and large capacity can increase its market share.

[0006] A new flanging process is proposed for the new type of inner liner; see details below. Figure 3 (a) and (b). Therefore, it is necessary to design a multi-model dishwasher inner drum flanging machine suitable for the new flanging process. Summary of the Invention

[0007] This invention addresses the technical requirement of flanging the inner liner of a dishwasher, which has four rounded corners and four straight edges on the back, before welding it to the back panel. It proposes a multi-model dishwasher inner liner flanging machine. Using this inner liner flanging machine simplifies the manufacturing process of the new dishwasher inner liner, shortens the manufacturing time, reduces the scrap rate, effectively reduces manufacturing costs, and allows one flanging machine to be compatible with multiple models of inner liners, enabling the production of multiple models of dishwashers and saving on initial equipment investment costs.

[0008] To achieve the above objectives, the technical solution of the present invention is: a multi-model dishwasher inner drum flanging machine, comprising a base plate and a top plate, the base plate and the top plate being symmetrically arranged on a base. Each of the top plate and the base plate is provided with two sets of positioning supports, which extend and position the inner drum on the four positioning supports via a guide cylinder. Each of the top plate and the base plate is provided with a pressing mechanism, a flanging mechanism, and a shaping mechanism. The pressing mechanism is used to press the inner drum on the positioning supports; the flanging mechanism is used to flanging the inner drum; and the shaping mechanism uses shaping blocks to shape the flanged edge of the inner drum, making the entire flanged surface flat. A multi-model changing mechanism is installed on the base. Driven by a servo motor, the top part slides on a linear guide rail, providing space for the installation and removal of the changing blocks. By replacing different models of changing blocks on the pressing mechanism, the flanging mechanism, and the shaping mechanism, the flanging machine can be compatible with producing multiple models of inner drums.

[0009] Furthermore, the positioning support consists of a cylinder with a guide post and a positioning support block. The positioning support block is mounted on the cylinder with the guide post. The extension and retraction of the cylinder with the guide post causes the positioning support block to slide, providing positioning and support for the inner liner.

[0010] Furthermore, the pressing mechanism consists of a slider cover plate, a side baffle, a slider, a transition slide plate, a side pressing slide plate, a cylinder connecting block, a side pressing cylinder, a support, a middle pressing cylinder, a middle slide plate, a middle slider, a lubricating oil groove, a positioning pin, and a pull block. The side pressing cylinder pushes the transition slide plate, and under the action of the small-angle inclined surface of the transition slide plate, the side pressing slide plate presses the side of the inner liner. The middle pressing cylinder extends and directly pushes the middle slide plate to press the top or bottom plate of the inner liner under the guidance of the middle slider.

[0011] Furthermore, the lubricating oil groove provides lubricating oil to the slide plate, reducing resistance and increasing the service life of the equipment; the positioning pin is used for the transition positioning of the slide plate and the slider cover; the slider cover is used to press the entire slide plate assembly together to prevent the slider from moving.

[0012] Furthermore, the flanging mechanism comprises a pressure plate, side slide plates, adjusting blocks, sliders, pulling blocks, corner slide plates, middle slide plates, positioning pins, wear-resistant plates, lubricating oil connectors, brackets, base plates, inclined pulling blocks, connecting blocks, push blocks, pull shafts, a base, and flanging cylinders. The base plate and bracket provide mounting support for the flanging mechanism. The side slide plates, corner slide plates, and sliders are mounted on the base plate, and the flanging cylinders are mounted on the frame. When the cylinders retract, they drag the pull shafts back. Under the action of the inclined surface of the push block, the side slide plates and the middle slide plates slide out, and the side slide plates and the middle slide plates extend in conjunction with them. The wear-resistant blocks mounted on the three slide plates flanging the inner liner. When the cylinders extend, the pull blocks pull all three slide plates back. The cover plate presses against the sliders to prevent them from sliding back, and the positioning pins are used for precise positioning of the flanging mechanism.

[0013] Furthermore, the shaping mechanism consists of a guide post, a guide seat, a shaping cylinder, a side shaping block, a corner shaping block one, a shaping base, a middle shaping block, and a corner shaping seat two. The shaping cylinder, guide post, and guide seat are mounted on the frame. The guide post is connected to the shaping base. The shaping cylinder pushes the shaping base to move along the direction of the guide post and pushes the side shaping block, the middle shaping block, and the corner shaping blocks one and two to repeatedly press the inner liner to make the flange flat.

[0014] Furthermore, the changing mechanism consists of a servo motor, a mounting base, a coupling, a fixed bearing seat, a ball screw, a screw nut, a slipper, a linear guide rail, and a sliding bearing seat. The servo motor is mounted on the mounting base, which is mounted on the base. The ball screw and the fixed bearing seat are mounted on the base. The screw nut and the slipper are connected to the top plate support. The base is connected to the linear guide rail. The servo motor drives the top plate support to move back and forth along the linear guide rail, completing the free changing of multiple inner liner models.

[0015] Furthermore, the changing block consists of a pressing mechanism adjusting slide plate, a pressing block, a flanging slider, a flanging mechanism adjusting slide plate, a shaping pressing block, and a shaping mechanism adjusting base plate. One model of inner liner corresponds to one set of changing blocks, and multiple models of inner liner correspond to multiple sets of changing blocks.

[0016] Furthermore, the forming block is bolted to the flanging machine, with a stop for positioning, making it easy to assemble and disassemble and simple to maintain.

[0017] The beneficial effects of this invention are:

[0018] The multi-model dishwasher inner drum flanging machine of this invention mainly consists of a positioning support, a pressing mechanism, a flanging mechanism, a shaping mechanism, a changing mechanism, and multi-model changing blocks. The flanging of the dishwasher inner drum is completed through feeding → positioning → pressing → flanging → shaping → unloading. When a model needs to be changed, replacing the changing blocks allows for free switching between multiple inner drum models.

[0019] When it is necessary to flip the inner liner, the material sensor detects that there is an inner liner on the flipping machine. Press the flipping button, and the various mechanisms of the flipping machine will complete the flipping of the inner liner according to the above-mentioned procedures. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the dishwasher's inner drum structure;

[0021] Among them: (a) traditional dishwasher inner tub, (b) new type dishwasher inner tub

[0022] Figure 2 These are schematic diagrams of the inner drums of various dishwasher models with different heights;

[0023] Figure 3 This is a schematic diagram of the flanging process used in the new type of dishwasher;

[0024] Wherein: (a) flanging, (b) after flanging

[0025] Figure 4 This is a general drawing of a multi-model dishwasher inner drum flanging machine;

[0026] Figure 5 This is a schematic diagram of the positioning support structure;

[0027] Figure 6 This is a schematic diagram of the clamping mechanism;

[0028] Figure 7 This is a schematic diagram of the flange mechanism;

[0029] Wherein: (a) perspective view, (b) sectional view

[0030] Figure 8 This is a schematic diagram of the plastic surgery mechanism;

[0031] Wherein: (a) plan view, (b) partial 3D view

[0032] Figure 9 This is a schematic diagram of the changing mechanism;

[0033] Figure 10 This is a schematic diagram of the shape-changing block structure;

[0034] In the diagram: 1. Multiple models of inner liner; 2. Protective cover; 3. Positioning support; 4. Pressing mechanism; 5. Flanging mechanism; 6. Shaping mechanism; 7. Multiple models of changing block; 8. Changing mechanism; 9. Base plate support; 10. Top plate support; 11. Base; 201. Cylinder with guide post; 202. Positioning support block; 301. Slider cover plate; 302. Side baffle; 303. Slider; 304. Transition slide plate; 305. Side pressing slide plate. 306. Plate, 307. Hydraulic cylinder connecting block, 308. Side clamping hydraulic cylinder, 309. Support, 310. Middle clamping hydraulic cylinder, 311. Middle sliding plate, 312. Middle slider, 313. Lubricating oil groove, 314. Positioning pin, 405. Pull block, 406. Pressure plate, 407. Side sliding plate, 408. Adjusting block, 409. Slider, 4000. Pull block, 401. Angle sliding plate, 401. Middle sliding plate, 402. Positioning pin, 403. Wear-resistant plate, 410. Lubricating oil connector, 411. Bracket, 412. Base plate, 413. Pull block, 414. Connecting block, 415. Push block, 416. Pull shaft, 417. Base, 418. Flanging cylinder, 501. Guide post, 502. Guide seat, 503. Shaping cylinder, 504. Side shaping block, 505. Corner shaping block one, 506. Shaping base, 507. Middle shaping block, 508. Corner shaping seat two 601. Servo motor; 602. Mounting base; 603. Coupling; 604. Fixed bearing housing; 605. Ball screw; 606. Screw nut; 607. Slipper; 608. Linear guide; 609. Sliding bearing housing; 701. Clamping mechanism adjusting slide plate; 702. Clamping block; 703. Flanging slider; 704. Flanging mechanism adjusting slide plate; 705. Shaping pressure block; 706. Shaping mechanism adjusting base plate. Detailed Implementation

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] like Figure 4 As shown, the multi-model dishwasher inner drum flanging machine of the present invention consists of two parts: a bottom plate and a top plate, which are arranged symmetrically. The entire flanging machine is composed of four sets of positioning supports, two sets each for the top plate and the bottom plate. In use, the positioning supports extend under the action of the cylinder with guide columns, and the inner drum is placed on the four positioning supports. The clamping mechanism clamps the inner drum, and under the action of two sets of clamping mechanisms, the inner drum does not slide. The four sets of positioning supports retract under the action of the cylinder.

[0037] A clamping mechanism is installed on the top plate and another on the bottom plate. After the inner liner is placed into the flanging machine mold for positioning, the clamping mold extends under the action of eight clamping cylinders. The four straight edges and four rounded corners of the inner liner are firmly fixed to the flanging cover plate by the clamping mold. The clamping force is large, which can prevent the inner liner from slipping during flanging. A changeover interface is reserved on the flanging slider, which allows for compatibility with multiple models of inner liners by changing the changeover block.

[0038] A flanging mechanism is arranged on the top plate, and another flanging mechanism is symmetrically arranged on the bottom plate. Driven by the pulling force of the flanging cylinder, the pull shaft pulls the inclined block. Under the pushing force of the inclined block, the straight-edge slider is pushed out, and the rounded-corner slider slides out simultaneously under the linkage of the straight-edge slider. The wear-resistant plate installed on the slider flanged the inner liner. After flanging, under the pushing force of the cylinder, the inclined block moves upward, and the connecting block pulls the straight-edge slide back. Under the linkage of the straight-edge slide, the rounded-corner slide also retracts. Change-out interfaces are reserved on the four straight-edge slides, allowing for compatibility with multiple inner liner models by replacing the change-out blocks.

[0039] There are two shaping mechanisms, one for the top plate and one for the bottom plate. By repeatedly pressing the already turned edge with shaping blocks, the dents can be flattened, reducing the springback of the turned edge and making the entire turned edge surface flat. A shape-changing interface is reserved on the shaping base plate, which can be used to change shapes by replacing the shape-changing blocks to accommodate multiple models of inner liner.

[0040] To enable free switching between multiple models, a multi-model switching mechanism is installed on the base. Driven by a servo motor, the top part can slide freely on a linear guide rail, which also provides space for the installation and removal of the switching blocks.

[0041] By replacing the different types of changing blocks on the clamping mechanism, flanging mechanism, and shaping mechanism, the flanging machine can be made compatible with the production of multiple types of inner liner.

[0042] Example:

[0043] like Figure 4 As shown, the multi-model dishwasher inner drum flanging machine mainly consists of a protective cover 2, positioning support 3, pressing mechanism 4, flanging mechanism 5, shaping mechanism 6, multi-model changing block 7, changing mechanism 8, bottom plate support 9, top plate support 10, and base 11. Through the cyclical movements between these mechanisms, the flanging of the four rounded corners and four straight edges on the back of the inner drum is completed. The bottom plate support 9 and top plate support 10 are symmetrically arranged on the base 11. Each of the bottom plate support 9 and top plate support 10 has two sets of symmetrically arranged positioning supports 3. The top plate support 10 is equipped with one set of pressing mechanism 4, one set of flanging mechanism 5, and one set of shaping mechanism 6. The bottom plate support 9 is equipped with one set of pressing mechanism 4, two sets of symmetrically arranged flanging mechanisms 5, and one set of shaping mechanism 6. To install the multi-model changing mechanism 7 on the base 11, a servo motor drives the top part to slide freely on a linear guide rail, providing space for the installation and removal of the changing block. By replacing different types of changing blocks on the pressing mechanism 4, the flanging mechanism 5, and the shaping mechanism 6, the flanging machine can be compatible with the production of multiple types of inner liner.

[0044] like Figure 5As shown, each positioning support 3 consists of a cylinder 201 with a guide post and a positioning support block 202. The positioning support block 202 is mounted on the cylinder 201 with the guide post. The extension and retraction of the cylinder allows the positioning support block 202 to slide freely, providing positioning and support for the inner liner.

[0045] like Figure 6 As shown, each clamping mechanism 4 consists of a slider cover plate 301, a side baffle plate 302, a slider 303, a transition slide plate 304, a side clamping slide plate 305, a cylinder connecting block 306, a side clamping cylinder 307, a support 308, a central clamping cylinder 309, a central slide plate 310, a central slider 311, a lubricating oil groove 312, a positioning pin 313, and a pull block 314. The side clamping cylinder 307 pushes the transition slide plate 304, and under the action of the small-angle inclined surface of the transition slide plate 304, the side clamping slide plate 305 clamps the side of the inner liner. The central clamping cylinder 309 extends and directly pushes the central slide plate 310, which, guided by the central slider 311, clamps the top or bottom plate of the inner liner. The lubricating oil groove 312 provides lubricating oil to the slide plate, reducing resistance and increasing the service life of the equipment. The positioning pin 313 provides accurate installation positioning for the transition slide plate 304 and the slider cover plate 301. The slider cover plate 301 presses the entire slide plate assembly firmly to prevent the slider 303 from moving. When the hydraulic cylinder retracts, the transition slide plate 304 is dragged back by the pull block 314.

[0046] like Figure 7 As shown in (a) and (b), each flanging mechanism consists of a pressure plate 401, a side slide plate 402, an adjusting block 403, a slider 404, a pulling block 405, an angle slide plate 406, a middle slide plate 407, a positioning pin 408, a wear-resistant plate 409, a lubricating oil connector 410, a bracket 411, a base plate 412, an inclined pull block 413, a connecting block 414, a push block 415, a pull shaft 416, a base 417, and a flanging cylinder 418. The base plate 412 and the bracket 411 provide mounting support for the flanging mechanism. The side slide plate 402, the angle slide plate 406, and the slider 404 are mounted on the base plate 412. The cover plate presses down on the slider 404 to prevent it from moving. The positioning pin 408 provides precise positioning for the flanging mechanism. The flanging cylinder 418 is mounted on the frame. When the cylinder retracts, it drags the pull shaft 416 back. Under the action of the inclined surface of the push block 415, the side slide plates 402 and 404 slide out. The side slide plates 402 and 404 then drive the corner slide plate 406 to extend in conjunction. The wear-resistant blocks 409 mounted on the three slide plates flanging the inner liner. When the cylinder extends, the pull block 405 pulls all three slide plates back.

[0047] like Figure 8As shown in (a) and (b), the shaping mechanism mainly consists of guide post 501, guide seat 502, shaping cylinder 503, side shaping block 504, corner shaping block 1 505, shaping base 506, middle shaping block 507, and corner shaping block 2 508. The shaping cylinder 503 is mounted on the frame, as are the guide post 501 and guide seat 502. The guide post 501 is connected to the shaping base 506, allowing the shaping cylinder 503 to push the shaping base 506 to slide freely along the direction of the guide post 501. The side shaping block 504, middle shaping block 507, and corner shaping blocks 1 and 2 505 and 508 repeatedly press the inner liner to flatten the flange.

[0048] like Figure 9 As shown, the changing mechanism mainly consists of a servo motor 601, a mounting base 602, a coupling 603, a fixed bearing seat 604, a ball screw 605, a screw nut 606, a sliding shoe 607, a linear guide rail 608, and a sliding bearing seat 609. The servo motor 601 is mounted on the mounting base 602, which is mounted on the base. The ball screw 605 and the fixed bearing seat 604 are mounted on the base, and the screw nut 606 is connected to the top plate support. The top plate support is connected to the sliding shoe 607, and the base is connected to the linear guide rail 608. The servo motor 601 can drive the top plate support to move back and forth along the linear guide rail 608, completing the free changing of multiple inner liner models.

[0049] like Figure 10 As shown, the forming block mainly consists of a pressing mechanism adjusting slide plate 701, a pressing block 702, a flanging slider 703, a flanging mechanism adjusting slide plate 704, a shaping pressing block 705, and a shaping mechanism adjusting base plate 706. One set of forming blocks corresponds to one model of inner liner; multiple models of inner liner correspond to multiple sets of forming blocks. The forming block is bolted to the flanging machine, with a stop-position design, making assembly and disassembly convenient and maintenance simple.

[0050] The top plate bracket, bottom plate bracket, and base provide support and installation foundation for the flanging machine.

Claims

1. A multi-model dishwasher inner drum flanging machine, comprising a base plate and a top plate, characterized in that: The bottom plate and top plate are symmetrically arranged on the base. Each of the top and bottom plates has two sets of positioning supports, which extend and position the inner liner on the four supports via a guide cylinder. The top and bottom plates are respectively equipped with a pressing mechanism, a flanging mechanism, and a shaping mechanism. The pressing mechanism presses the inner liner on the positioning supports; the flanging mechanism flanging the inner liner; and the shaping mechanism uses shaping blocks to shape the flanged edge of the inner liner, ensuring a smooth flanged surface. The base... The machine is equipped with a multi-model changing mechanism. Driven by a servo motor, the top part slides on a linear guide rail, providing space for the installation and removal of the changing blocks. By replacing different models of changing blocks on the pressing mechanism, flanging mechanism, and forming mechanism, the flanging machine can produce multiple models of inner liner. The pressing mechanism consists of a slider cover plate, side baffle, slider, transition slide plate, side pressing slide plate, hydraulic cylinder connecting block, side pressing hydraulic cylinder, support, middle pressing hydraulic cylinder, middle slide plate, middle slider, lubricating oil groove, positioning pin, and pull block. The side pressing hydraulic cylinder pushes... The transition slide plate, under the action of its small-angle inclined surface, presses the side of the inner liner with the side clamping slide plate; the middle clamping cylinder extends and directly pushes the middle slide plate, guided by the middle slider, to press the top or bottom plate of the inner liner; the lubrication groove provides lubricating oil to the slide plate, reducing resistance and increasing the service life of the equipment; the positioning pin is used for the installation and positioning of the transition slide plate and the slider cover plate; the slider cover plate is used to press the entire slide plate assembly tightly to prevent the slider from moving; the flanging mechanism consists of a pressure plate, side slide plate, adjusting block, slider, pulling block, corner slide plate, middle slide plate, and positioning... The machine is composed of a pin, wear-resistant plate, lubricating oil connector, bracket, base plate, inclined pull block, connecting block, push block, pull shaft, base and flanging cylinder. The base plate and bracket provide installation support for the flanging mechanism. The side slide plate, corner slide plate and slider are installed on the base plate. The flanging cylinder is installed on the frame. When the cylinder retracts, it drags the pull shaft back. Under the action of the inclined surface of the push block, the side slide plate and middle slide plate slide out. The side slide plate and middle slide plate drive the corner slide plate to extend in linkage. The wear-resistant block installed on the three slide plates flanging the inner liner. When the cylinder extends, it pulls all three slide plates back under the action of the pull block.

2. The multi-model dishwasher inner drum flanging machine according to claim 1, characterized in that: The positioning support consists of a cylinder with a guide post and a positioning support block. The positioning support block is mounted on the cylinder with the guide post. The extension and retraction of the cylinder with the guide post causes the positioning support block to slide, providing positioning and support for the inner liner.

3. The multi-model dishwasher inner drum flanging machine according to claim 1, characterized in that: The pressure plate presses down on the slider to prevent it from moving, and the positioning pin is used for precise positioning of the flanging mechanism.

4. The multi-model dishwasher inner drum flanging machine according to claim 1, characterized in that: The shaping mechanism consists of a guide post, a guide seat, a shaping cylinder, a side shaping block, a corner shaping block one, a shaping base, a middle shaping block, and a corner shaping block two. The shaping cylinder, guide post, and guide seat are mounted on the frame. The guide post is connected to the shaping base. The shaping cylinder pushes the shaping base to move along the direction of the guide post and pushes the side shaping block, the middle shaping block, and the corner shaping blocks one and two to repeatedly press the inner liner to make the flange flat.

5. The multi-model dishwasher inner drum flanging machine according to claim 1, characterized in that: The changing mechanism consists of a servo motor, a mounting base, a coupling, a fixed bearing seat, a ball screw, a screw nut, a sliding shoe, a linear guide rail, and a sliding bearing seat. The servo motor is mounted on the mounting base, which is mounted on the base. The ball screw and the fixed bearing seat are mounted on the base. The screw nut and the sliding shoe are connected to the top plate support. The base is connected to the linear guide rail. The servo motor drives the top plate support to move back and forth along the linear guide rail, completing the free changing of multiple inner liner models.

6. The multi-model dishwasher inner drum flanging machine according to claim 1, characterized in that: The changing block consists of a pressing mechanism adjusting slide plate, a pressing block, a flanging slider, a flanging mechanism adjusting slide plate, a shaping pressing block, and a shaping mechanism adjusting base plate. One model of inner liner corresponds to one set of changing blocks, and multiple models of inner liner correspond to multiple sets of changing blocks.

7. The multi-model dishwasher inner drum flanging machine according to claim 6, characterized in that: The changing block is bolted to the flanging machine, with a stop for positioning, making it easy to assemble and disassemble and simple to maintain.

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