Dishwasher inner tank central axis linkage flanging machine

Abstract

The present invention relates to a center shaft linkage flanging machine for the inner tank of a dishwasher. The flanging mechanism with center shaft linkage is installed in the middle of the frame, and a pressing mechanism and a shaping mechanism are installed around it. The flanging mechanism with center shaft linkage includes a die with four-sided inclination, a shrinkage die, a slide plate connecting block, a lifting module, a center shaft, a flanging oil cylinder, a guide sleeve, a straight-edge slide plate, a rounded-edge slide plate and a flanging die. The flanging oil cylinder is fixed on the frame, and the piston rod of the flanging oil cylinder is fixedly connected with the die with four-sided inclination through the center shaft. The center shaft is slidably and cooperatively connected with the guide sleeve fixed in the frame. Straight-edge slide plates are respectively installed on the four sides of the frame corresponding to the four sides of the die with four-sided inclination, and rounded-edge slide plates are installed at the top corners. A cover plate is arranged on the straight-edge slide plates and the rounded-edge slide plates. Flanging dies and shrinkage blocks for straight edges and rounded edges are respectively installed on the straight-edge slide plates and the rounded-edge slide plates. The rounded-edge slide plates and the straight-edge slide plates move between the bottom plate and the cover plate under the push of the die with four-sided inclination.

Description

Technical Field

[0001] The present invention relates to a flanging machine for the inner liner of a dishwasher, and more particularly to a central axis linkage flanging machine for the inner liner of a dishwasher. Background Art

[0002] Dishwashers are a necessity, and the needs of users will be gradually explored and met. With the emergence of household appliances such as washing machines and robot vacuum cleaners, people have gradually freed their hands. However, washing dishes immerses the hands in cold water and oil stains, wasting a lot of people's time over the years, and there are also many hygiene hidden danger problems in hand washing. Handing dishwashing to machines and freeing the hands is a real need, which can save people's time and effort. Secondly, dishwashers not only have a single dishwashing function, but can also wash many other items. In addition to providing a good cleaning function, dishwashers also have uses such as sterilization and drying. The cleaning principle of spray dishwashers mainly adopts a 360-degree all-round spray system and a spray hole design at a scientific angle. During the operation of the dishwasher, the upper and lower spray pipes flush with high pressure, which can comprehensively cover every corner of the tableware, and the high-pressure water flow can effectively remove the stain residues.

[0003] Traditional dishwashers are limited by manufacturing equipment and production processes, with a large transition fillet radius. For dishwashers of the same external dimensions, the effective volume of the dishwasher is small. In order to increase the effective volume of the dishwasher, by improving the manufacturing process, reducing the fillet or adopting a right-angle welding form, the effective volume of the dishwasher can be greatly increased.

[0004] The newly developed dishwasher uses a top plate, a bottom plate and a middle plate to bite. After the inner liner after biting is flanged and then welded to the back plate. This process can reduce the biting fillet. The top plate and the back plate, and the cover plate and the back plate are directly welded at a right angle, greatly increasing the number of tableware that can be placed. Considering the actual situation of small kitchen areas in traditional Chinese kitchens, dishwashers with small volumes and large capacities can increase the market share of the equipment.

[0005] For the new type of inner liner, as Figure 1 , shown in Figure 2, including a rounded corner A and a straight edge section B, a new flanging process is proposed. After the inner liner is bitten by a hemming machine and then flanged by a flanging machine, it is a key process in dishwasher manufacturing. In order to increase the capacity of the dishwasher, a top plate, a bottom plate and two middle plates are bitten, and after biting, the back of the inner liner is flanged by a flanging machine, and finally the flanged inner liner is welded to the back plate to form a stainless steel inner liner.

[0006] The original flanging machine can only flange the three front edges of the inner liner or the four rounded corners on the back. Therefore, it is necessary to design a linkage flanging machine that can flange the four rounded corners on the back and the four straight edges at the same time. Summary of the Invention

[0007] The present invention is aimed at the requirement that the four rounded corners and four straight edges of the back of the inner tank need to be flanging, and then welded to the back plate after flanging. A center axis linkage flanging machine for the inner tank of a dishwasher is proposed. Through the center axis linkage mechanism, a center axis is used to directly push the four straight edge slides and indirectly push the four rounded corner slides, so that the four rounded corners and four straight edges are flipped at the same time. This makes the manufacturing process of the new dishwasher inner tank simple, the inner tank manufacturing time is short, the scrap rate is low, and the manufacturing cost is effectively reduced. A perfect inner tank can make the entire dishwasher product have a long service life, low production cost, small size and large capacity, and easy to occupy the market.

[0008] To achieve the above-mentioned purpose, the technical solution of the present invention is as follows: a center-axis linked flanging machine for dishwasher inner tank, which is composed of a pressing mechanism, a center-axis linked flanging mechanism, a shaping mechanism and a frame. The center-axis linked flanging mechanism is installed in the middle of the frame, and is surrounded by a pressing mechanism and a shaping mechanism. The center-axis linked flanging mechanism includes a four-sided inclined mold, a shrinking mold, a slide connecting block, a pulling module, a center axis, a flanging cylinder, a guide sleeve, a straight-edge slide, a rounded-corner slide and a flanging mold. The flanging cylinder is fixed on the frame. The piston rod of the flanging cylinder is fixedly connected to the mold with four inclined sides through the center axis, and the center axis is slidably connected to the guide sleeve fixed in the frame; the frame is provided with straight-edge slides on the four sides corresponding to the mold with four inclined sides, and a rounded-corner slide is provided at the top corner, and a cover plate is provided on the straight-edge slide and the rounded-corner slide, and the straight-edge slide and the rounded-corner slide are respectively provided with flanging molds with straight edges and rounded corners and shrinkage blocks, and the rounded-corner slide and the straight-edge slide move between the base plate and the cover plate under the push of the mold with four inclined sides.

[0009] Furthermore, the clamping mechanism is composed of a clamping cylinder, a clamping frame, a guide column, a support, a guide column cover, a clamping mold and a cylinder connecting sleeve. The two sides of the support are fixedly connected to the clamping cylinder respectively. The piston rod of the clamping cylinder is fixedly connected to the clamping frame through the cylinder connecting sleeve. The clamping frame is slidably connected to the support through the guide column and the guide sleeve. A clamping mold is installed at the front end of the clamping frame.

[0010] Furthermore, the shaping mechanism consists of a shaping mold, a mold connecting plate, a guide column, a self-lubricating bearing and a shaping cylinder. The mold connecting plate is fixedly connected to the frame through the guide column and the self-lubricating bearing. The guide column is installed in the self-lubricating bearing. The guide column can slide up and down in the self-lubricating bearing. The cylinder body of the shaping cylinder is fixed on the frame, the piston rod is fixedly connected to the mold connecting plate, and the shaping mold is installed on the mold connecting plate.

[0011] Furthermore, the frame is provided with a pressing mechanism mounting support, a center axis linkage flanging mechanism mounting support, and a shaping mechanism mounting support.

[0012] The beneficial effects of the present invention are:

[0013] The center-axis linkage flanging machine of the present invention mainly consists of a pressing mechanism, a center-axis linkage flanging mechanism, and a shaping mechanism. Through the cyclic actions among the mechanisms, the flanging of the four rounded corners and four straight edges on the back of the inner liner is completed.

[0014] The entire pressing mechanism of the flanging machine consists of four sets of independent pressing mechanisms. The pressing oil cylinder pushes the pressing die to press the inner liner, pressing the four rounded corners and four straight edge segments of the inner liner. The inner side of the inner liner is completely attached to the guide pillar cover plate, and the outer side is completely attached to the pressing die, accurately positioning the flanging height of the inner liner and ensuring that the inner liner does not slide during the flanging process. After the inner liner shaping is completed, the four sets of pressing oil cylinders retract, and the inner liner can be demolded.

[0015] The center-axis linkage flanging mechanism is pulled down by the flanging oil cylinder installed under the center axis. The center axis drives the four-sided inclined die to move downward. The four-sided inclined die simultaneously drives the four straight-edge slide plates to link and flang the four straight edge segments by relying on the four inclined surfaces. The straight-edge slide plates synchronously slide and indirectly drive the rounded-corner slide plates to slide. In this way, one center axis simultaneously directly drives the four straight-edge slide plates and indirectly drives the four rounded-corner slide plates to slide simultaneously, flanging the four straight edge segments and four rounded corners of the inner liner at one time. After the inner liner is flanged, the oil cylinder jacks up, the center axis jacks up the four-sided inclined die, and the four straight-edge flanging dies are retracted through the shrinkage die. The four straight-edge flanging dies drive the four rounded-corner flanging dies to link and retract.

[0016] After the inner liner is flanged, the flanged inner liner will rebound. In order to ensure that the flanged edge is perpendicular to that before flanging, the shaping mechanism is needed to shape it again. After shaping, the inner liner rebounds again to meet the requirement of being perpendicular before and after flanging.

[0017] The present invention completes the flanging of the dishwasher inner liner through feeding → pressing → flanging → shaping → discharging.

[0018] When the inner liner needs to be produced, the incoming material sensor senses that there is an inner liner on the flanging machine, and the flanging button is pressed. Each mechanism of the flanging machine operates according to the above process to complete the flanging of the inner liner. It is safe and reliable, with good flanging quality, high efficiency, and low scrap rate. Brief Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the new inner liner before flanging;

[0020] [[ID=*]] Figure 2 It is a schematic diagram of the new inner liner after flanging;

[0021] Figure 3 It is a schematic diagram of the overall structure of the center-axis linkage flanging machine for the dishwasher inner liner;

[0022] Figure 4 It is a schematic diagram of the structure of the pressing mechanism;

[0023] Figure 5It is a sectional view of the center - axis linkage flanging mechanism;

[0024] Figure 6 It is a top view of the center - axis linkage flanging mechanism;

[0025] Figure 7 It is a schematic structural diagram of the shaping mechanism;

[0026] Figure 8 It is a schematic structural diagram of the frame Specific implementation manner

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] As Figure 3 shown, the flanging machine of the present invention is generally composed of a pressing mechanism 1, a center - axis linkage flanging mechanism 2, a shaping mechanism 3, a frame 4, etc. Each mechanism is installed on the same frame 4, and the mechanisms act cyclically for the inner liner flanging. Among them, the center - axis linkage flanging mechanism 2 is installed in the middle of the frame 4, and the pressing mechanism 1 and the shaping mechanism 3 are installed around it.

[0029] As Figure 4 shown, the pressing mechanism 1 is composed of a pressing oil cylinder 201, a pressing frame 202, guide columns 203, a support 204, a guide column cover plate 205, a pressing die 206, an oil cylinder connecting sleeve 207, etc. The pressing oil cylinder 201 is installed on the support 204 using bolts, the piston rod of the oil cylinder is installed with the oil cylinder connecting sleeve 207, and then the oil cylinder connecting sleeve 207 is fixed on the pressing frame 202 using bolts. The guide columns 203 are installed in the guide sleeves, the guide sleeves are installed in the support 204, the guide columns 203 and the guide sleeves are in sliding fit, the guide sleeves and the support 204 are in tight fit, the other ends of the guide columns 203 are fixed on the pressing frame 202 using the guide column cover plate 205 and bolts, and finally the pressing die 206 is fixed on the pressing frame 202 using bolts.

[0030] When the pressing mechanism 1 acts, the pressing oil cylinder 201 extends to press, the outer side of the inner liner is completely attached to the pressing die 206, the inner side of the inner liner is completely attached to the guide column cover plate 205, and the inner liner is firmly fixed on the flanging machine. After shaping, the pressing oil cylinder 201 retracts, the pressing die 206 is separated from the inner liner, and the inner liner can be taken out manually.

[0031] As Figure 5, as shown in Figure 6, the flanging mechanism 2 with central axis linkage consists of a four-sided inclined die 301, a shrinkage die 302, a slide plate connecting block 303, a lifting module 304, a central axis 305, a flanging oil cylinder 306, a guide sleeve 307, a cover plate 308, a bottom plate 309, a locking nut 310, a straight-edge slide plate 311, a rounded-edge slide plate 312, a flanging die 313, etc. The flanging oil cylinder 306 is fixed on the frame 4 using bolts. The piston rod of the flanging oil cylinder 306 is fixed on the central axis 305 using threads. The guide sleeve 307 is fixed on the frame 4. The central axis 305 can slide up and down within the guide sleeve 307. The central axis 305 is a stepped shaft. The upper part of the central axis 305 is connected to the four-sided inclined die 301. The four-sided inclined die 301 is firmly fixed on the central axis 305 using the locking nut 310. The up and down sliding of the central axis 305 can drive the up and down sliding of the four-sided inclined die 301. The lower bottom plate 309 is fixed on the frame 4 using bolts. The rounded-edge slide plate 312 and the straight-edge slide plate 311 are installed on the bottom plate 309 using bolts. Finally, the cover plate 308 is covered. The rounded-edge slide plate 312 and the straight-edge slide plate 311 can move between the bottom plate 309 and the cover plate 308 under the push of the four-sided inclined die 301. The flanging die 313 with straight edges and rounded edges and the shrinkage block 302 are respectively installed on the straight-edge slide plate 311 and the rounded-edge slide plate 312.

[0032] When the flanging oil cylinder 306 of the flanging mechanism 2 retracts, the central axis 305 drives the four-sided inclined die 301 to move downward, the straight-edge slide plate 311 and the rounded-edge slide plate 312 extend, and the flanging die 313 installed on the slide plate is used to flange the inner liner; when the flanging oil cylinder 306 extends, the central axis 305 drives the four-sided inclined die 301 to move upward, and the shrinkage block 302 installed on the straight-edge slide plate 311 retracts the straight-edge slide plate 311 and the rounded-edge slide plate 312 to complete the flanging.

[0033] As Figure 7 shown, the shaping mechanism 3 consists of a shaping die 401, a die connecting plate 402, a guide post 403, a self-lubricating bearing 404, a shaping oil cylinder 405, etc. The self-lubricating bearing 404 is fixed on the frame 4 using bolts. Then the guide post 403 is installed inside the self-lubricating bearing 404. The other end of the guide post 403 is connected to the die connecting plate 402 using bolts. The guide post 403 can slide up and down within the self-lubricating bearing 404. The cylinder block of the shaping oil cylinder 405 is fixed on the frame 4, and the piston rod is fastened to the die connecting plate 402. Finally, the shaping die 401 is fixed on the die connecting plate 402 using bolts. The shaping die 402 adopts a negative angle. After shaping, the inner liner rebounds, and after rebounding, it can ensure that the inner liner is perpendicular before and after flanging, achieving the expected shaping purpose.

[0034] When the shaping oil cylinder 405 extends, the shaping die 401 presses for shaping; when the shaping oil cylinder 405 retracts, the shaping die 401 disengages from the inner liner, and the shaping is completed.

[0035] As Figure 8 shown, the rack 4 is provided with a pressing mechanism installation support 501, a central shaft linkage flanging mechanism installation support 502, and a shaping mechanism installation support 503. Installation supports are provided for each mechanism to ensure that there is no interference during the movement of each mechanism and to guarantee the safe and reliable operation of the equipment.

Claims

1. A center shaft linkage flanging machine for the inner liner of a dishwasher, which is composed of a pressing mechanism, a flanging mechanism linked by a center shaft, a shaping mechanism and a frame, and is characterized in that: The flanging mechanism linked to the central axis is installed in the middle of the frame, and is surrounded by a pressing mechanism and a shaping mechanism; the flanging mechanism linked to the central axis includes a mold inclined on four sides, a shrinking mold, a slide connecting block, a lifting module, a central axis, a flanging cylinder, a guide sleeve, a straight-edge slide, a rounded slide and a flanging mold, the flanging cylinder is fixed on the frame, the piston rod of the flanging cylinder is fixedly connected to the mold inclined on four sides through the central axis, and the central axis is slidably connected to the guide sleeve fixed in the frame; the frame The four sides of the mold corresponding to the four inclined sides are respectively provided with straight-edge slides, and the top corners are provided with rounded-corner slides. Cover plates are provided on the straight-edge slides and the rounded-corner slides. Straight-edge and rounded-corner flanging molds and shrinkage molds are respectively provided on the straight-edge slides and the rounded-corner slides. The rounded-corner slides and the straight-edge slides move between the bottom plate and the cover plate under the push of the four-sided inclined mold. The clamping mechanism consists of a clamping cylinder, a clamping frame, a guide column, a support, a guide column cover plate, a clamping mold and a cylinder connecting sleeve. The two sides of the support They are fixedly connected to the clamping oil cylinder, the piston rod of the clamping oil cylinder is fixedly connected to the clamping frame through the cylinder connecting sleeve, the clamping frame is slidably connected to the support through the guide column and the guide sleeve, and a clamping die is installed at the front end of the clamping frame; the entire clamping mechanism is composed of four sets of independent clamping mechanisms, the clamping oil cylinder pushes the clamping die to clamp the inner liner, and the four rounded corners and four straight edge sections of the inner liner are compressed, the inner side of the inner liner is completely fitted with the guide column cover plate, and the outer side is completely fitted with the clamping die, and the flange height of the inner liner is accurately positioned. Ensure that the liner does not slide during the flanging process; the center axis linkage flanging mechanism is pulled down by the flanging cylinder installed under the center axis, and the center axis drives the four-sided inclined mold to move downward. The four-sided inclined mold relies on the four inclined surfaces to simultaneously drive the four straight-side slides to link and flanging the four straight-side sections. The straight-side slides slide synchronously to indirectly drive the rounded-corner slide to slide, completing a center axis directly driving the four straight-side slides and indirectly driving the four rounded-corner slides to slide at the same time, and flipping the four straight-side sections and four rounded corners of the liner at one time.

2. The center axis linkage flanging machine for the inner liner of a dishwasher according to claim 1, characterized in that: The shaping mechanism consists of a shaping mold, a mold connecting plate, a guide column, a self-lubricating bearing and a shaping oil cylinder. The mold connecting plate is fixedly connected to the frame through the guide column and the self-lubricating bearing. The guide column is installed in the self-lubricating bearing. The guide column can slide up and down in the self-lubricating bearing. The cylinder body of the shaping oil cylinder is fixed on the frame, the piston rod is fixedly connected to the mold connecting plate, and the shaping mold is installed on the mold connecting plate.

3. The center shaft linkage flanging machine for the inner liner of a dishwasher according to claim 1, characterized in that: The frame is provided with a pressing mechanism mounting support, a center axis linkage flanging mechanism mounting support, and a shaping mechanism mounting support.

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