Digital intelligent manufacturing control method and integrated system for household appliance glass products

Abstract

A digital intelligent manufacturing control method for household appliance glass products and an integrated system are characterized in that fixed-length cutting is carried out on a glass tube in a fixed-length tube cutting device, specifically, a servo motor is adopted to rotate for turns to reach a set length, then a cutter is fed to rotate a cutting opening, and a cutting position is heated through flaming; the workpiece is subjected to self-stress separation at the cutting opening position through thermal expansion and cold contraction; then a clamping hand of the conveying device is instructed to move the workpiece to be pressed between the neck pressing crank arm wheel and the forming shaft die to form the kettle neck; then a fire spraying ring is instructed to heat one end of the workpiece to complete a pipe opening, and sharp edges of the pipe opening end of the workpiece are eliminated; the driving air cylinder can drive the spout forming wheel to move up and down, and when the spout forming wheel moves downwards to a workpiece, after the spout forming wheel presses the workpiece to form a spout shape, the pressing die wheel and the protruding strip forming groove wheel which is matched with the pressing die wheel to synchronously and reversely rotate at the same speed work to form partial arc protruding strips. And finally, the workpiece is conveyed to a heat treatment device for overall tempering of the kettle body, so that a work cycle is completed.

Description

[Technical Field]

[0001] This invention relates to a digital manufacturing control method and integrated system for glass products used in household appliances. [Background Technology]

[0002] Market research and patent searches revealed that existing handheld cooling fans, such as Chinese patent publication number CN110950524A, disclose a glass kettle forming device and forming process. The glass kettle forming device includes a worktable, a positioning device, and a pressing device; the glass kettle forming process includes steps such as preform positioning and heating angle adjustment, local heating, preliminary pressing, force pressing, and cutting forming. Through improvements to the traditional high borosilicate glass kettle manufacturing process, the glass kettle is made more innovative, practical, and aesthetically pleasing. Compared with welding technology, this solution can improve the smoothness of the connection between the spout and the kettle body, making the spout and the kettle body integrated. This not only improves the aesthetics but also makes pouring water from the glass kettle smoother. It breaks through the limitations of the traditional high borosilicate heat-resistant glass kettle spout manufacturing process, and the manufacturing process is relatively simple and easy to control the specifications and personalized appearance requirements of the spout.

[0003] However, the processing of the glass body of these small household appliances (electric kettles, food processors, ice makers, soy milk makers, etc.) involves separate processes. For example, the spout is produced using mechanized equipment, and different parts require different equipment, resulting in significant waste in industrial production. We have developed a digital intelligent manufacturing control method and integrated system for glass products used in household appliances. [Summary of the Invention]

[0004] The technical problem to be solved by this invention is to provide a digital intelligent production line robot integrated system for the molding of glass products for home appliances. The manufacturing process is easy to achieve large-scale integrated production. It is an automated equipment for processing glass tubes into the body of glass pots. It integrates fixed-length cutting, neck forming, spout forming, neck ring protrusion, side pressing of the pot body and post-heat treatment, which greatly reduces manufacturing costs, saves energy, and has a high degree of automation.

[0005] To achieve the above objectives, the present invention provides a digital intelligent manufacturing control method for glass products used in household appliances, characterized by comprising:

[0006] First, the order specifications and quantity of the kettles are obtained through the computer to generate a production plan and the production capacity of each production line for preparing glass tubes.

[0007] Then, under the full control of the PLC, perform the following manufacturing steps:

[0008] First, the glass tube is cut to a fixed length using a fixed-length tube cutting device. Specifically, the number of rotations of a servo motor can be used to achieve the set length. Then, the feed tool rotates the cutting edge and the cutting position is heated by a flame. Thermal expansion and contraction are used to separate the stress of the workpiece at the cutting edge.

[0009] Then the clamp of the instruction conveyor moves the workpiece between the necking crank wheel and the forming mold to form a neck;

[0010] Next, the flame ring is instructed to heat one end of the workpiece to straighten the pipe opening and eliminate the sharp edge of the workpiece pipe opening; the drive cylinder can drive the spout forming wheel to move up and down. When it moves down to the workpiece, the spout forming wheel presses the workpiece to form a spout shape. Then, the pressing wheel and the convex strip that rotate synchronously and at the same speed in opposite directions form a groove wheel to form a partial arc convex strip.

[0011] Then, the command instructs multiple sets of lateral pressing dies to feed the lateral pressing dies toward the center, thereby extruding the workpiece and simultaneously forming multiple recessed inner grooves on the side.

[0012] Finally, the workpiece is sent to a heat treatment device for overall tempering of the kettle body to complete one work cycle.

[0013] Furthermore, the following manufacturing steps are carried out under the full control instructions of the PLC, including the use of a conveying device to provide position changes for the workpiece in each step and to automatically determine the standby station, so as to achieve seamless replacement production; in order to balance the production line and achieve full production line operation.

[0014] Under the same concept, we also provide an integrated system for realizing the above-mentioned intelligent manufacturing control method for glass products for home appliances, including: a PLC control cabinet, a conveying device, a frame, an automatic station device and a heat treatment device. The automatic station device includes a fixed-length tube cutting device, a neck forming device, a spout forming device, a neck convex strip forming device and a body side pressing device.

[0015] Furthermore, the neck forming device, spout forming device, and neck protrusion forming device are all equipped with an active rotating inner clamping arm mechanism.

[0016] The active rotating inner clamping arm mechanism includes a turntable, a guide rod disposed in the turntable groove, and a slider movably disposed on the guide rod. The slider is connected to the inner tensioning clamping arm. The slider moves outward synchronously relative to each other, causing the inner tensioning clamping arms to move away from each other and abut against the inner wall of the workpiece to tension.

[0017] Furthermore, the neck forming device includes a neck pressing crank arm wheel and a forming shaft mold, the active rotating inner clamping arm receives the workpiece fed into the forming shaft mold, and a flame ring is provided on one side of the neck forming device.

[0018] Furthermore, the neck forming device includes a neck pressing crank arm wheel and a forming shaft mold, the active rotating inner clamping arm receives the workpiece fed into the forming shaft mold, and a flame ring is provided on one side of the neck forming device.

[0019] Furthermore, the spout forming device includes a spout forming wheel and upper and lower stroke guide rails and a driving cylinder for driving the spout forming wheel; the neck rib forming device includes a pressing wheel and a rib forming groove wheel that rotates synchronously and at the same speed in opposite directions with the pressing wheel; the body side pressing device includes multiple sets of lateral pressing dies and a slide rail that moves the lateral pressing dies toward the center.

[0020] The advantages of this invention compared to the prior art are:

[0021] Because the present invention adopts the above-mentioned solution, the manufacturing process is easy to achieve large-scale integrated production. It is an automated equipment for processing glass tubes into the main body of a glass pot, integrating fixed-length cutting, neck forming, spout forming, neck ring protrusion, side pressing of the pot body and post-heat treatment, which greatly reduces manufacturing costs, saves energy, and has a high degree of automation. [Attached Image Description]

[0022] Figure 1 A schematic block diagram of a digital manufacturing control method for glass products used in home appliances;

[0023] Figure 2 This is a schematic diagram of the structure of a digital intelligent production line robot integration system for molding household appliance glass products in one embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the intelligent production line robot integration system for molding household glass products according to one embodiment of the present invention, viewed from another perspective.

[0025] Figure 4 This is a partial structural schematic diagram of an automated workstation device in a digital intelligent production line robot integration system for molding household appliance glass products, according to one embodiment of the present invention.

[0026] Figure 5 This is a partial structural schematic diagram of the automatic workstation device in the intelligent production line robot integration system for molding glass products for home appliances, from another perspective, according to one embodiment of the present invention.

[0027] Figure 6 for Figure 4 Enlarged view of point A in the middle;

[0028] Figure 7 for Figure 4 Enlarged view at point B in the middle;

[0029] Figure 8 for Figure 4 Enlarged view at point C;

[0030] Figure 9 for Figure 4 Enlarged view at point D;

[0031] Figure 10 for Figure 5 Enlarged view of point E in the middle.

Detailed Implementation Methods

[0032] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.

[0033] In the following description, the term "connection" should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral connection; it can also refer to a mechanical connection; it can refer to a direct connection or a connection through an intermediate medium; or it 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 invention according to the specific circumstances.

[0034] In this invention, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "below" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] PLC stands for Programmable Logic Controller. It is a programmable logic controller that stores programs internally to execute logical operations, sequentially control fixed-length cutting, neck forming, spout forming, neck ring protrusion, body side pressing and post-heat treatment, conveying and other station instructions, and controls various types of machinery or devices in the pot-making process through digital or analog input / output. PLC has the characteristics of simple structure, superior performance and strong adaptability, and is widely used in the field of industrial control.

[0036] Reference Figure 1 The illustration shows a preferred embodiment of the present invention, a digital manufacturing control method for glass products used in household appliances, comprising:

[0037] First, the order specifications and quantity of the kettles are obtained through the computer to generate a production plan and the production capacity of each production line for preparing glass tubes.

[0038] Then, under the full control of the PLC, perform the following manufacturing steps:

[0039] First, the glass tube is cut to a fixed length using a fixed-length tube cutting device. Specifically, the number of rotations of a servo motor can be used to achieve the set length. Then, the feed tool rotates the cutting edge and the cutting position is heated by a flame. Thermal expansion and contraction are used to separate the stress of the workpiece at the cutting edge.

[0040] Then the clamp of the instruction conveyor moves the workpiece between the necking crank wheel and the forming mold to form a neck;

[0041] Next, the flame ring is instructed to heat one end of the workpiece to straighten the pipe opening and eliminate the sharp edge of the workpiece pipe opening; the drive cylinder can drive the spout forming wheel to move up and down. When it moves down to the workpiece, the spout forming wheel presses the workpiece to form a spout shape. Then, the pressing wheel and the convex strip that rotate synchronously and at the same speed in opposite directions form a groove wheel to form a partial arc convex strip.

[0042] Then, the command instructs multiple sets of lateral pressing dies to feed the lateral pressing dies toward the center, thereby extruding the workpiece and simultaneously forming multiple recessed inner grooves on the side.

[0043] Finally, the workpiece is sent to a heat treatment device for overall tempering of the kettle body to complete one work cycle.

[0044] Furthermore, the following manufacturing steps are carried out under the full control instructions of the PLC, including the use of a conveying device to provide position changes for the workpiece in each step and to automatically determine the standby station, so as to achieve seamless replacement production; in order to balance the production line and achieve full production line operation.

[0045] Reference Figure 2-9 The preferred embodiment shown is an integrated system for realizing the above-mentioned intelligent manufacturing control method for glass products for home appliances, specifically including a PLC control cabinet 1, a frame 2, a conveying device 3, an automatic workstation device 4, and a heat treatment device 5, wherein the PLC control cabinet 1 is located on one side of the frame 2.

[0046] The conveying device 3 is movably mounted on the frame 2 and is used to move the workpiece and change its processing position. The automatic station device 4 is connected to the PLC control cabinet 1 and is located below the conveying device 3. The automatic station device 4 includes a fixed-length pipe cutting device 41, a neck forming device 42, a spout forming device 43, a neck rib forming device 44, and a body side pressing device 45. The workpiece is fed to the cutting tool 47 by the fixed-length pipe cutting device 41 with the help of the stepper motor 46 to reach the set distance, so that the cutting edge is rotated and then heated by the flame. The workpiece is subjected to stress separation at the cutting edge by thermal expansion and contraction.

[0047] The conveying device 3 clamps the separated workpiece into the neck forming device 42. The neck forming device 42 includes a neck pressing crank arm 421, an active rotating inner clamping arm mechanism 422, and a forming shaft mold 423. The active rotating inner clamping arm 422 receives the workpiece and feeds it into the forming shaft mold 423. The workpiece is pressed between the neck pressing crank arm 421 and the forming shaft mold 423 to form a neck. A flame ring 47 is provided on one side of the neck forming device. The flame ring 47 heats one end of the workpiece to straighten the tube opening and eliminate the sharp edge of the tube opening end.

[0048] The spout forming device 43 is arranged adjacent to the neck forming device 42. The spout forming device 43 includes a spout forming wheel 431, a vertical travel guide rail 432 for driving the spout forming wheel, and a drive cylinder 433. The drive cylinder 433 can drive the spout forming wheel 431 to move up and down. When it moves downward to the workpiece, the spout forming wheel 431 presses the workpiece to form a spout shape, and then moves upward to complete one working cycle of spout forming. Of course, in different embodiments, a motor can also be used to drive the spout forming wheel 431 up and down by driving a lead screw, or a hydraulic cylinder, gear drive, etc. Those skilled in the art should understand and be able to implement various driving methods, which will not be listed and described one by one here.

[0049] The neck protrusion forming device 44 includes a pressing roller 441 and a protrusion forming grooved roller 442 that rotates synchronously and at the same speed but in opposite directions with the pressing roller;

[0050] The side forming device 45 of the pot body includes multiple sets of side pressing molds 451 and a slide rail 452 that moves the side pressing molds 451 toward the center. The workpiece is fed by multiple sets of side pressing molds 451 and multiple recessed inner grooves are formed on the side at the same time.

[0051] It also includes a heat treatment device 5, which is connected to the end of the frame 2 and is arranged adjacent to the side forming device 45 of the kettle body. After the workpiece is grooved on the side forming device 45, it enters the heat treatment device 5 for heat treatment and then is output to the next process.

[0052] To significantly improve production efficiency, multiple side-forming devices 45 can be used, arranged in a matrix. Multiple neck-forming devices 42 can also be used, spaced apart on the support frame 48. Multiple neck-shaped strip forming devices 44 can also be used, spaced apart on the support frame 48. Where space permits, multiple neck-forming devices 42, spout-forming devices 43, neck-shaped strip forming devices 44, and side-forming devices 45 can be used, symmetrically arranged on the support frame 48.

[0053] The automatic workstation device 4 includes multiple flamers 49, which are fixed-length pipe cutting device 41, neck forming device 42, spout forming device 43, neck convex strip forming device 44, and body side pressing device 45. The flamers are activated to heat the workpiece before processing to facilitate shaping.

[0054] The active rotating inner clamping arm mechanism 422 includes a turntable 4221, a guide rod 4222 disposed in a groove of the turntable 4221, and a slider 4223 movably disposed on the guide rod 4222. The slider 4223 is connected to an inner tensioning clamping arm 4224. The slider 4224 moves outward synchronously relative to the inner tensioning clamping arms, causing the inner tensioning clamping arms to move away from each other and abut against the inner wall of the workpiece for tensioning. The active rotating inner clamping arm mechanism is not only used in the neck forming device 42 for inner clamping and feeding of the workpiece. The active rotating inner clamping arm mechanism can also be applied in the spout forming device 43 and the neck protrusion forming device 44 with the same or similar structure.

[0055] The side of the molding roller 442 is provided with multiple spaced forming grooves 4421. The forming grooves 4421 roll the surface of the workpiece, so that the workpiece material is heated and squeezed into the space of the forming groove to form a partial annular rib.

[0056] In summary, and in conjunction with all the accompanying drawings, the working process is further briefly described as follows:

[0057] Under the full control of the PLC, the glass tube is first cut by the fixed-length cutting device 41 to form a glass tube with a length of 280mm. The stepper motor 46 feeds the cutting tool 47 to a set distance to rotate the cutting edge, and then the cutting position is heated by a flame. Thermal expansion and contraction cause the workpiece to separate from its own stress at the cutting edge. Then, the clamping device 3 is instructed to move the workpiece between the necking crank wheel 421 and the forming mold 423 to form a neck. A flame ring 47 is provided on one side of the neck forming device. The flame ring 47 heats one end of the workpiece to straighten the pipe opening, eliminating the sharp edge. The drive cylinder 433 drives the spout forming wheel 431 to move up and down. When the spout forming wheel 431 moves downward to the workpiece, it presses the workpiece to form a spout shape. Then, the pressing wheel 441 and the convex groove forming wheel 442, which rotates synchronously and at the same speed but in opposite directions, work to form a partially arc-shaped convex strip. Then, multiple sets of lateral pressing dies 451 are fed towards the center, pressing the workpiece to form multiple recessed inner grooves on the side. Finally, the workpiece is sent to the heat treatment device 5 for overall tempering to complete one work cycle and then sent to the next installation process.

[0058] Although the invention has been described with reference to preferred embodiments, variations, substitutions, and equivalents fall within the scope of the invention. It should also be noted that many alternative ways of implementing the invention exist; therefore, the appended claims are intended to be interpreted as including all such variations, substitutions, and equivalents that fall within the true spirit and scope of the invention. Through the above description of the structure and principles, those skilled in the art should understand that the invention is not limited to the specific embodiments described above, and improvements and substitutions based on the invention using techniques known in the art all fall within the protection scope of the invention and should be defined by the claims.

Claims

1. A digital manufacturing control method for glass products used in household appliances, characterized in that, include: First, the order specifications and quantity of the kettles are obtained through the computer to generate a production plan and the production capacity of each production line for preparing glass tubes. Then, under the full control of the PLC, perform the following manufacturing steps: First, the glass tube is cut to a fixed length using a fixed-length tube cutting device. Specifically, the number of rotations of a servo motor can be used to achieve the set length. Then, the feed tool rotates the cutting edge and the cutting position is heated by a flame. Thermal expansion and contraction are used to separate the stress of the workpiece at the cutting edge. Then the clamp of the instruction conveyor moves the workpiece between the necking crank wheel and the forming mold to form a neck; Next, the flame ring is instructed to heat one end of the workpiece to straighten the pipe opening and eliminate the sharp edge of the workpiece pipe opening; the drive cylinder can drive the spout forming wheel to move up and down. When it moves down to the workpiece, the spout forming wheel presses the workpiece to form a spout shape. Then, the pressing wheel and the convex strip that rotate synchronously and at the same speed in opposite directions form a groove wheel to form a partial arc convex strip. Then, the command instructs multiple sets of lateral pressing dies to feed the lateral pressing dies toward the center, thereby extruding the workpiece and simultaneously forming multiple recessed inner grooves on the side. Finally, the workpiece is sent to a heat treatment device for overall tempering of the kettle body to complete one work cycle.

2. The intelligent manufacturing control method for glass products used in household appliances according to claim 1, characterized in that, The following production steps are carried out under the full control of PLC, including the use of conveying devices to provide position changes for workpieces in each step and automatic determination of standby stations to achieve seamless replacement production; so as to balance the production line and achieve full production line operation.

3. An integrated system for realizing the above-mentioned intelligent manufacturing control method for glass products used in household appliances, characterized in that, include: The system includes a PLC control cabinet, a conveying device, a frame, an automatic workstation device, and a heat treatment device. The automatic workstation device includes a fixed-length pipe cutting device, a neck forming device, a spout forming device, a neck rib forming device, and a body side pressing device.

4. The intelligent production line robot integration system for molding household appliance glass products according to claim 3, characterized in that: The neck forming device, spout forming device, and neck protrusion forming device are all equipped with an active rotating inner clamping arm mechanism. The active rotating inner clamping arm mechanism includes a turntable, a guide rod disposed in the turntable groove, and a slider movably disposed on the guide rod. The slider is connected to the inner tensioning clamping arm. The slider moves outward synchronously relative to each other, causing the inner tensioning clamping arms to move away from each other and abut against the inner wall of the workpiece to tension.

5. The integrated system according to claim 4, characterized in that: The neck forming device includes a neck pressing crank wheel and a forming shaft mold. The active rotating inner clamping arm receives the workpiece fed into the forming shaft mold. A flame ring is provided on one side of the neck forming device.

6. The integrated system according to claim 5, characterized in that: The neck forming device includes a neck pressing crank wheel and a forming shaft mold. The active rotating inner clamping arm receives the workpiece fed into the forming shaft mold. A flame ring is provided on one side of the neck forming device.

7. The integrated system according to claim 6, characterized in that: The spout forming device includes a spout forming wheel, a guide rail for driving the spout forming wheel's upper and lower strokes, and a driving cylinder; the neck rib forming device includes a pressing wheel and a rib forming groove wheel that rotates synchronously and at the same speed in opposite directions with the pressing wheel; the body side forming device includes multiple sets of lateral pressing dies and a slide rail that moves the lateral pressing dies toward the center.

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