Processing method for single-layer and double-layer heat-insulating cup body

Abstract

The present invention discloses a processing method for a single - double - layer heat - insulating cup body, belonging to the field of glass cup processing. The preliminary shape of the outer shell liner is manufactured by cutting the outer tube, drawing the round mouth of the liner, burning the thick bottom, etc. The preliminary shape of the inner liner is manufactured by cutting the inner tube, rounding the mouth of the inner liner, rolling ribs on the inner liner, and expanding the mouth of the inner liner. Then, the inner liner and the outer shell liner are heated in a round furnace, and after heating, they are taken out and sealed on a double - layer automatic sealing machine. The sealed cup body is placed in the round furnace for heating. After the cup body is heated, it is fired by a single - double - layer welding and shaping machine for single - layer and double - layer lower - end welding. The present invention adopts a single - double - layer structure design with a double - layer upper part and a single - layer lower part. By using reasonable processes, controlling process parameters, and cooperating with equipment and auxiliary mechanisms such as an inner - liner mouth - expanding machine and a single - double - layer welding and shaping machine, a single - double - layer cup body that meets market requirements is manufactured, solving the problems that a single - layer cup does not have heat insulation and anti - scalding functions when users drink water, and that the color of tea leaves and the taste of tea water are poor when using a double - layer cup to soak tea leaves.

Description

Technical Field:

[0001] The present invention relates to the field of glass cup manufacturing, and particularly to a processing method for a single-layer and double-layer heat-insulating cup body. Background Art:

[0002] At present, glass cups on the market are mainly divided into two types: single-layer cups and double-layer cups. Single-layer cups and double-layer cups each have their own advantages and disadvantages. The obvious disadvantage of single-layer cups is that they cannot provide heat insulation and anti-scalding functions. Although double-layer cups can provide heat insulation and anti-scalding functions, they also have disadvantages. Because the heat preservation effect of double-layer cups is better than that of single-layer cups, when brewing tea, the color of the tea leaves and the taste of the tea water are much worse than those brewed in single-layer cups, and the transparency of double-layer cups is not as good as that of single-layer cups.

[0003] Based on the analysis of the advantages and disadvantages of single-layer cups and double-layer cups, as well as the way users hold the tea cup when drinking water and their usage habits, if the upper part of the product is designed as double-layer and the lower part remains single-layer, these problems can be effectively solved.

[0004] Regarding the product structure designed above, a glass cup with a double-layer upper part and a single-layer lower part, how to achieve it in terms of technology is a very difficult and complex problem. First of all, for the water-containing part of the entire cup body, is it the outer shell or the inner liner? If the inner liner holds water, then the upper part of the cup will be larger than the lower part, and the overall appearance of the cup will be very unappealing. Therefore, the present invention application adopts a design structure where the outer shell holds water.

[0005] According to the above design structure where the outer shell holds water, the overall appearance of the cup is beautiful, but there are still many problems. For example: How to seal the outer shell and the inner liner at the end near the mouth (i.e., the upper end)? How to weld the lower ends of the outer shell and the inner liner? How to ensure the perfect combination of the cup body after welding during the sealing and welding process?

[0006] In summary, it is necessary to design a reasonable single-layer and double-layer heat-insulating cup body structure, and at the same time, a reasonable processing technology for the heat-insulating cup body should also be designed to finally achieve a heat-insulating cup body structure that meets market requirements. Summary of the Invention:

[0007] In order to make up for the problems in the prior art, the purpose of the present invention is to provide a processing method for a single-layer and double-layer heat-insulating cup body, which adopts a single-layer and double-layer structure design with a double-layer upper part and a single-layer lower part. By using reasonable processes, controlling process parameters, and cooperating with equipment and auxiliary mechanisms such as an inner liner flaring machine and a single-layer and double-layer welding and shaping machine, a single-layer and double-layer cup body that meets market requirements is manufactured, enabling the single-layer and double-layer cup body to meet the way users hold the tea cup when drinking water and their usage habits, effectively solving the problem that single-layer cups do not have heat insulation and anti-scalding functions when users drink water, and at the same time solving the problem that when brewing tea with double-layer cups, the color of the tea leaves and the taste of the tea water are poor.

[0008] The technical solution of the present invention is as follows:

[0009] A processing method for a single - double - layer heat - resistant cup body, characterized by comprising the following steps:

[0010] S 1 、Cut the outer tube and cut the inner tube: Cut the long tube used for the outer shell liner into short tubes of the outer shell liner with the required specifications and dimensions; Cut the long tube used for the inner liner into short tubes of the inner liner with the required specifications and dimensions;

[0011] S 2 、Expand the mouth of the liner: Use a liner mouth - expanding machine to expand the mouth of one end of the short tube of the outer shell liner to form the outer shell liner;

[0012] S 3 、Burn the thick bottom: Use an automatic thick - bottom machine to burn the bottom shape of the outer shell liner;

[0013] S 4 、Round the mouth of the inner liner: Place the short tube of the inner liner into a round - mouth machine to round one end of the mouth part;

[0014] S 5 、Roll the ribs of the inner liner: Use a rib - rolling machine to perform rib - rolling on one end of the inner liner after rounding the mouth;

[0015] S 6 、Expand the mouth of the inner liner: Use an inner - liner mouth - expanding machine to perform mouth - expanding and shaping on the other end of the inner liner. The dimensional tolerance of the inner - liner mouth - expanding is required to be ±0.5 mm;

[0016] S 7 、Double - layer sealing: Heat the inner liner and the outer shell liner in a round furnace, and the heating temperature is not less than 560 °C. After heating, take them out and seal them on a double - layer automatic sealing machine;

[0017] S 8 、Single - double - layer welding: Place the sealed cup body into a round furnace for heating, and the heating temperature is not less than 560 °C. After the cup body is heated, use a single - double - layer welding and shaping machine to perform single - and double - layer lower - end welding.

[0018] For the processing method of the single - double - layer heat - resistant cup body described above, it is characterized in that in step S 6 the dimensional tolerance of the inner - liner mouth - expanding is required to be ±0.3 mm.

[0019] For the processing method of the single - double - layer heat - resistant cup body described above, it is characterized in that in step S 7 the inner liner and the outer shell liner are heated in a round furnace, and the heating temperature is 560 °C - 600 °C.

[0020] For the processing method of the single - double - layer heat - resistant cup body described above, it is characterized in that in step S 8 the sealed cup body is placed into a round furnace for heating, and the heating temperature is 560 °C - 600 °C.

[0021] For the processing method of the single - double - layer heat - resistant cup body described above, it is characterized in that S8 In the middle step, after the cup body is heated, the cup body is clamped at both ends in a single and double layer welding and shaping machine, and the rotational speed requirement of the cup body is 150 - 200 r / min;

[0022] Fire the position of the outer shell of the inner liner at 3 - 10 mm downward from the inner liner. When the outer shell is burned to a soft red circle, slowly pull the cup body 0.5 - 1.2 mm in both end directions. The slightly sunken red soft glass water is slightly sunken inward. When firing the outer shell of the cup body, perform shaping at the same time. Then, quickly squeeze the two ends of the cup body inward, and the squeezed glass water seals the gap between the inner liner and the outer shell;

[0023] Finally, slowly squeeze the two ends of the cup body inward, and at the same time, perform shaping on the outer shell. The single and double layer welding is completed.

[0024] The processing method of the single and double layer anti - scald cup body is characterized in that the inner liner flaring machine includes a frame. A lead screw guide rail is horizontally installed on the upper end face of the frame. A tailstock drive motor is installed at the end of the lead screw guide rail. A tailstock is installed on the lead screw guide rail. A positioning cylinder is horizontally installed on the tailstock. The front end of the piston rod of the positioning cylinder is horizontally installed with a flaring die. The flaring die includes a cylindrical fixed section, and a flaring section in the shape of a cone is connected to the front end of the fixed section;

[0025] A chuck opposite to the flaring die is fixedly installed on one side of the upper end of the frame. A slide rail is installed on the frame between the chuck and the lead screw guide rail. A flaring flame row that sprays fire upward is slidably installed on the slide rail;

[0026] A first control screen with an internal control system is provided on the frame in front of the chuck. A first start switch and a first emergency stop switch electrically connected to the control system are provided below the first control screen. The control system in the first control screen is respectively electrically connected to the tailstock drive motor and the solenoid valve of the positioning cylinder.

[0027] In the processing method of a single and double layer anti - scald cup body, it is characterized in that an auxiliary mechanism that moves synchronously is installed at the rear side of the tailstock. The auxiliary mechanism includes a longitudinal guide post. A lifting seat is slidably installed on the longitudinal guide post. A rotating shaft with the same orientation as the flaring die is rotatably installed on the lifting seat. A servo motor is installed at the upper end of the lifting seat. The output shaft of the servo motor is connected to the rotating shaft through a worm and gear mechanism. A rotating handle perpendicular to the rotating shaft is installed at the front end of the rotating shaft. A shaping die is provided on the rotating handle. The shaping die has the same orientation as the flaring die;

[0028] It also includes a lifting motor. The lifting motor is fixed on the frame on one side of the lifting seat. The output shaft end of the lifting motor is connected to a lifting lead screw. The lifting lead screw is rotatably installed on the lead screw nut on the lifting seat;

[0029] The solenoid valves of the servo motor and the lifting motor are electrically connected to the control system in the first control screen.

[0030] The processing method of the single- and double-layer heat-insulating cup body is characterized in that the single- and double-layer welding and shaping machine comprises a machine body, on which a left lead screw guide rail and a right lead screw guide rail are oppositely arranged, and the ends of the left lead screw guide rail and the right lead screw guide rail are respectively connected with a left tailstock driving motor and a right tailstock driving motor; a left tailstock and a right tailstock are respectively installed on the left lead screw guide rail and the right lead screw guide rail, and a left chuck and a right chuck are arranged on the opposite surfaces of the left tailstock and the right tailstock, and a left air cylinder and a right air cylinder are respectively arranged at the ends of the left chuck and the right chuck;

[0031] A middle slide rail is installed on the machine body between the left lead screw guide rail and the right lead screw guide rail, and a welding and shaping flame row that sprays fire upwards is slidably installed on the middle slide rail; an auxiliary mechanism for synchronous movement is installed at the rear side of the right tailstock;

[0032] A second control screen with an internal control system is arranged at the front side of the machine body, and a second start switch and a second emergency stop switch electrically connected to the control system are arranged below the second control screen. The control system in the second control screen is electrically connected to the solenoid valves of the power systems of the left tailstock driving motor, the right tailstock driving motor and the auxiliary mechanism.

[0033] The advantages of the present invention are as follows:

[0034] 1. The product structure of the present invention has a unique design concept. The glass cup with a single layer on the upper part and a double layer on the lower part has a beautiful overall appearance, and perfectly solves the technical problems that people have always wanted to solve but have not been solved: the single-layer cup does not have heat insulation and anti-scalding functions when users drink water, and the color of the tea leaves and the taste of the tea water are poor when using a double-layer cup to soak tea.

[0035] 2. The present invention adopts a design structure in which the outer shell liner holds water. The outer shell liner and the inner liner are close to one end of the mouth part (i.e., the upper end). The inner liner short tube is put into a round mouth machine to round the mouth part at one end, and a rolling rib process is carried out on one end of the rounded inner liner by a rolling rib machine; the other end of the inner liner is subjected to flaring and shaping by an inner liner flaring machine. The inner liner and the outer shell liner are heated by a round furnace, and the heating temperature is not less than 560 °C. After heating, they are taken out and sealed on a double-layer automatic sealing machine, effectively solving the sealing problem at one end of the single- and double-layer close to the mouth part.

[0036] 3. The inner liner flaring machine of the present invention cooperates with a flaring die and an auxiliary mechanism to flare the inner liner. During the flaring process, the dimensional tolerance of the inner liner flaring is required to be within ±0.3 mm, which can improve the standard of the outer dimensions of the single- and double-layer cups and reduce the rejection rate.

[0037] 4. The unique single - layer and double - layer welding of the present invention. After sealing the cup body, it is placed in a circular furnace for heating, and the heating temperature is not less than 560 °C. After the cup body is heated, a single - layer and double - layer welding and shaping machine is used for firing to perform single - layer and double - layer lower - end welding. During the welding process, high requirements are imposed on the process parameters of each part. By firing the position of the outer shell liner 3 - 10 mm below the inner liner, when the outer shell liner is fired to a soft red - colored circle, the cup body is slowly pulled 0.5 - 1.2 mm in both end directions. The softened glass water of the red - colored part slightly sinks inward. When firing the outer shell liner of the cup body, shaping is simultaneously carried out. Then, the two ends of the cup body move inward and are quickly squeezed. The squeezed glass water seals the gap between the inner liner and the outer shell. Finally, the two ends of the cup body are slowly squeezed inward, and at the same time, the outer shell liner is shaped, and the single - layer and double - layer welding is completed.

[0038] 5. The single - layer and double - layer welding and shaping machine of the present invention is combined with an auxiliary mechanism. The servo motor in the auxiliary mechanism (with the same structure as the auxiliary mechanism of the inner - liner flaring machine) drives the shaping die to descend and fit to the firing and welding position of the cup body, and then clamps the two ends of the cup body and moves inward quickly to squeeze. The squeezed glass water will seal the gap between the inner liner and the outer shell. Then, the two ends are slowly squeezed inward (the squeezing speed is very important. Too fast will cause bulges at the welding position, and too slow will cause depressions at the welding position). The purpose is to let the shaping die shape the welding position so that the single - layer and double - layer welding is perfectly combined. Brief Description of the Drawings:

[0039] Figure 1 It is a frame diagram of the working principle of the present invention.

[0040] Figure 2 It is a schematic structural diagram of the single - layer and double - layer heat - insulating cup body of the present invention.

[0041] Figure 3 It is a schematic structural diagram of the inner - liner flaring machine of the present invention.

[0042] Figure 4 It is a schematic structural diagram of the single - layer and double - layer welding and shaping machine of the present invention. Detailed Description of the Invention:

[0043] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0044] A processing method for a single - layer and double - layer heat - insulating cup body includes the following steps:

[0045] S 1 Cutting the outer tube and the inner tube: Cutting the long tube used for the outer shell liner 1 into short tubes of the outer shell liner with the required specifications for the outer tube; cutting the short tubes of the inner liner with the required specifications for the long tube used for the inner liner;

[0046] S 2, Pull the gallbladder and round the mouth: Burn the short pipe of the outer shell gallbladder with a gallbladder round mouth machine to form the outer shell gallbladder 1;

[0047] S 3 , Burn the thick bottom: Burn the bottom shape of the outer shell gallbladder 1 with an automatic thick bottom machine;

[0048] S 4 , Round the mouth of the inner gallbladder: Put the short pipe of the inner gallbladder into the round mouth machine to round one end of the mouth;

[0049] S 5 , Roll the ribs of the inner gallbladder: Perform the rib rolling process on one end of the inner gallbladder 2 after rounding the mouth with a rib rolling machine;

[0050] S 6 , Expand the mouth of the inner gallbladder: Use an inner gallbladder mouth expanding machine to expand and shape the other end of the inner gallbladder 2. The dimensional tolerance of the expanded mouth is required to be ±0.5mm;

[0051] S 7 , Double - layer sealing: Heat the inner gallbladder 2 and the outer shell gallbladder 1 in a round furnace. The heating temperature is not less than 560°C. After heating, take them out and seal them on a double - layer automatic sealing machine;

[0052] S 8 , Single - and double - layer welding: Put the sealed cup body into the round furnace for heating. The heating temperature is not less than 560°C. After the cup body is heated, use a single - and double - layer welding and shaping machine to perform single - and double - layer lower - end welding.

[0053] As Figure 2 shown: After welding is completed, a double - layer structure is formed in the upper part and a single - layer structure is formed in the lower part between the inner gallbladder 2 and the outer shell gallbladder 1. An annular closed cavity 3 is formed between the inner gallbladder 2 and the outer shell gallbladder 1, which helps with heat insulation and preventing burns.

[0054] Step S 6 The dimensional tolerance of the inner gallbladder mouth expansion is required to be within ±0.3mm. In order to ensure the standard of the external dimensions and reduce the rejection rate, the dimensional tolerance of the inner gallbladder mouth expansion is required to be within ±0.2mm.

[0055] Step S 7 In this step, heat the inner gallbladder and the outer shell gallbladder in a round furnace. The heating temperature is 560°C - 600°C, and the temperature is usually kept constant at 560°C during the working process.

[0056] Step S 8 In this step, put the sealed cup body into the round furnace for heating. The heating temperature is 560°C - 600°C, and the temperature is usually kept constant at 560°C during the working process.

[0057] Step S 8 After the cup body is heated, place the cup body in the single - and double - layer welding and shaping machine and clamp both ends. The rotational speed of the cup body is required to be 150 - 200r / min;

[0058] Fire the position of the outer shell liner 3 - 10 mm downward from the inner liner. When the outer shell liner burns to a soft red circle, slowly pull the cup body 0.5 - 1.2 mm in both ends directions. The soft red glass water slightly sinks inward. While firing the outer shell liner of the cup body, perform shaping at the same time. Then, quickly squeeze the two ends of the cup body inward. The squeezed glass water seals the gap between the inner liner and the outer shell.

[0059] Finally, slowly squeeze the two ends of the cup body inward, and at the same time, perform shaping on the outer shell liner. The single - layer and double - layer welding is completed.

[0060] See Figure 3 : The inner liner flaring machine 4 includes a frame 4 - 1. A lead screw guide rail 4 - 2 is horizontally installed on the upper end surface of the frame 4 - 1. A tailstock drive motor 4 - 3 is installed at the end of the lead screw guide rail 4 - 2. A tailstock 4 - 4 is installed on the lead screw guide rail 4 - 2, and the tailstock 4 - 4 is driven to move left and right through the lead screw guide rail 4 - 2. A positioning cylinder 4 - 5 is horizontally installed on the tailstock 4 - 4. The front end of the piston rod of the positioning cylinder 4 - 5 is horizontally installed with a flaring die 4 - 6. The flaring die 4 - 6 includes a cylindrical fixed section, and a conical flaring section is connected to the front end of the fixed section.

[0061] A chuck 4 - 7 opposite to the flaring die is fixedly installed on one side of the upper end of the frame 4 - 1. A slide rail 4 - 8 is installed on the frame between the chuck 4 - 7 and the lead screw guide rail 4 - 2. A flaring burner 4 - 9 that sprays fire upward is slidably installed on the slide rail 4 - 8.

[0062] A first control panel 4 - 10 with an internal control system is provided on the frame in front of the chuck 4 - 7. A first start switch 4 - 11 and a first emergency stop switch 4 - 12 electrically connected to the control system are provided below the first control panel 4 - 10. The control system in the first control panel 4 - 10 is electrically connected to the tailstock drive motor 4 - 3 and the solenoid valve of the positioning cylinder 4 - 5 respectively.

[0063] An auxiliary mechanism that moves synchronously is installed at the rear of the tailstock. The auxiliary mechanism includes a longitudinal guide post 4 - 13. A lifting seat 4 - 14 is slidably installed on the longitudinal guide post 4 - 13. A rotating shaft 4 - 15 with the same orientation as the flaring die is rotatably installed on the lifting seat 4 - 14. A servo motor 4 - 16 is installed at the upper end of the lifting seat 4 - 14. The output shaft of the servo motor 4 - 16 is connected to the rotating shaft 4 - 15 through a worm and worm gear mechanism (not shown in the figure, which is a simple existing mechanical transmission structure). A rotating handle 4 - 17 perpendicular to the rotating shaft 4 - 15 is installed at the front end of the rotating shaft 4 - 15. A shaping die 4 - 18 is provided on the rotating handle 4 - 17. The shaping die 4 - 18 is in the shape of a shaft rod, and the shaping die 4 - 18 has the same orientation as the flaring die 4 - 16.

[0064] It further includes a lifting motor 4-19 which is fixed on the frame of the lifting seat 4-14. The output shaft end of the lifting motor 4-19 is connected to a lifting lead screw 4-20. The lower end of the lifting lead screw 4-20 is rotatably installed on the frame and the lifting lead screw 4-20 is rotatably installed on a lead screw nut (not shown in the figure) on the lifting seat 4-14;

[0065] The solenoid valves of the servo motor 4-16 and the lifting motor 4-19 are electrically connected to the control system in the control panel 4-10.

[0066] The working principle of the inner container flaring machine in the present invention is described as follows:

[0067] First, place the inner container 2 into the chuck (three-jaw chuck) 4-7 and clamp it. Press the start switch 4-11, and the machine starts to operate. The tailstock 4-4 drives the positioning cylinder 4-5 to position the inner container 2. After positioning, the tailstock 4-4 returns to its original position. Then, adjust the flaring burner 4-9 to the appropriate position and turn on the flame to fire one end of the inner container 2. When it becomes soft, the flame of the flaring burner 4-9 is extinguished. Then, the tailstock 4-4 moves to the left to the specified position, and the flaring die 4-6 enters the specified position inside the inner container 2. The positioning cylinder 4-5 drives the flaring die 4-6 to flare. Finally, after flaring is completed, the flaring die 4-6 returns to its original position, the tailstock 4-4 moves to the right to its original position, the machine stops operating, the chuck (three-jaw chuck) 4-7 is loosened, and the product is taken out.

[0068] During the flaring process of the inner container 2, an auxiliary mechanism with synchronous movement needs to be installed at the rear of the tailstock. Through the fitting and shaping of the shaping die (controlling the distance between the shaping die and the inner container, not elaborated here), ensure that the flaring dimensional tolerance requirement is ±0.2 mm. If the flaring size is too large, it will touch the inner wall of the outer shell 1 during the subsequent sealing process, resulting in slight scratches or even the risk of machine collision in severe cases; if the flaring size is too small, the probability of water leakage will increase during single-layer and double-layer welding due to the large gap between the inner and outer pipes, posing a risk of water leakage.

[0069] See Figure 4 : The single-layer and double-layer welding and shaping machine 5 includes a machine body 5-1. On the machine body 5-1, a left lead screw guide rail 5-2 and a right lead screw guide rail 5-3 are arranged oppositely. The ends of the left lead screw guide rail 5-2 and the right lead screw guide rail 5-3 are respectively connected to a left tailstock drive motor 5-8 and a right tailstock drive motor 5-9; left and right tailstocks 5-4 and 5-5 are respectively installed on the left lead screw guide rail 5-2 and the right lead screw guide rail 5-3. Left and right chucks 5-6 and 5-7 are provided on the opposite surfaces of the left tailstock 5-4 and the right tailstock 5-5. Left and right cylinders 5-16 and 5-17 are respectively provided at the ends of the left chuck 5-6 and the right chuck 5-7;

[0070] An intermediate slide rail 5-10 is installed on the machine body between the left lead screw guide rail 5-2 and the right lead screw guide rail 5-3. A welding and shaping flame row 5-11 that sprays fire upward is slidably installed on the intermediate slide rail 5-10; an auxiliary mechanism (with the same structure as the auxiliary mechanism of the inner liner flaring machine) 5-12 that moves synchronously is installed at the rear side of the right tailstock 5-5;

[0071] On the front side of the machine body 5-1, there is a second control screen 5-13 with an internal control system. Below the second control screen 5-13, there are a second start switch 5-14 and a second emergency stop switch 5-15 that are electrically connected to the control system. The control system inside the second control screen 5-13 is electrically connected to the left tailstock drive motor 5-8, the right tailstock drive motor 5-9, and the power system in the auxiliary mechanism.

[0072] In the present invention, the working principle of the single-layer and double-layer welding and shaping machine is described in detail as follows:

[0073] First, the cup body after sealing (the cup body with the inner liner 1 and the outer shell liner 2 sealed and fixed at one end close to the cup mouth) is placed in a circular furnace for heating. The heating temperature is 560 °C. The heating temperature of the circular furnace must reach 560 degrees. If the temperature is not enough, it will cause problems such as water vapor in the interlayer and insufficient air temperature in the interlayer, resulting in air expansion during welding heating and the softened glass water bulging;

[0074] Next, after the cup body is heated, it is clamped by a circular clamp and taken out of the circular furnace, and then placed in the left chuck (three-jaw chuck) 5-6 and tightened. The right chuck (three-jaw chuck) 5-7 moves to the left to clamp the other end of the cup body. The right tailstock drive motor 5-9 drives the right chuck (three-jaw chuck) 5-7 to move the cup body to the specified position. Press the start switch 5-14, and the machine starts to work. The required rotational speed of the machine spindle is 160 - 170 r / min.

[0075] Then, the flame of the shaping flame row (six-hole flame row) 5-11 is turned on, and the position of the outer shell liner 1 at 5 mm below the inner liner is fired. When the outer shell liner 1 is burned to a soft red in a circle, the left chuck 5-6 and the right chuck 5-7 on both sides slowly pull outwards by 0.8 - 1 mm. The softened glass water will slightly sink inwards (the distance of pulling outwards needs to be within the range of 0.8 - 1 mm. When the distance of pulling outwards is too large, the glass water will become thinner, and it will not stack well during welding, and the welding effect will be discounted, affecting water sealing; when the distance of pulling outwards is too small, the depression will be incomplete. During the subsequent rapid inward extrusion welding, the glass water will have no direction, and the risk of the glass water bulging outwards will increase. Once the glass water bulges outwards, this will cause a defective appearance of strip-shaped protrusions); the purpose of slowly pulling outwards by 0.8 - 1 mm is to control the direction of the glass water during the subsequent rapid inward extrusion welding.

[0076] The servo motor in the auxiliary mechanism (with the same structure as the auxiliary mechanism of the inner liner flaring machine) 5-12 drives the shaping die to descend and fit onto the firing and welding position of the cup body, and then the left chuck 5-6 and the right chuck 5-7 that clamp both ends of the cup body move inward and quickly squeeze. The squeezed glass water will seal the gap between the inner liner and the outer shell. Then, the left chuck 5-6 and the right chuck 5-7 at both ends slowly squeeze inward (the squeezing speed is very important. If it is too fast, it will cause the welding position to bulge; if it is too slow, it will cause the welding position to sink). The purpose is to let the shaping die shape the welding position so that the single-layer and double-layer welds are perfectly combined together.

[0077] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing method for a single - and double - layer heat - resistant cup body, characterized in that, it includes the following steps: S 1 、Cut the outer tube and the inner tube: Cut the long tube used for the outer shell into short tubes of the outer shell with the required specifications for the outer tube; cut the long tube used for the inner liner into short tubes of the inner liner with the required specifications; S 2 , Pull the gallbladder round mouth: Burn the short pipe of the outer shell gallbladder with a pull gallbladder round mouth machine to form the outer shell gallbladder; S 3 , Burn the thick bottom: Use an automatic thick bottom machine to burn the bottom shape of the outer shell liner; S 4 , Inner liner round mouth: Place the short tube of the inner liner into the round mouth machine to round the mouth at one end of the mouthpiece; S 5 、Inner liner bead rolling: Perform the bead rolling process on one end of the inner liner after rounding the opening using a bead rolling machine; S 6 , Inner liner flaring: Flare and shape the other end of the inner liner with an inner liner flaring machine. The dimensional tolerance of the inner liner flaring is required to be ±0.5 mm; S 7 Double-layer sealing: Heat the inner container and the outer container in a circular furnace at a heating temperature of not less than 560 °C, and then take them out and seal them on a double-layer automatic sealing machine after heating. S 8 , Single- and double-layer welding: Place the sealed cup body in a circular furnace for heating at a temperature of not less than 560 °C. After the cup body is heated, use a single- and double-layer welding and shaping machine to perform single- and double-layer bottom welding. After the cup body is heated, the cup body is clamped at both ends in a single - and double - layer welding and shaping machine; the outer shell of the inner liner is fired at the position where the inner liner is downward. When the outer shell is burned to a soft red circle, the cup body is slowly pulled in the direction of both ends. The softened red glass water slightly sinks inward. When firing the outer shell of the cup body, shaping is carried out at the same time. Then, the two ends of the cup body move inward quickly and are squeezed. The squeezed glass water seals the gap between the inner liner and the outer shell; Finally, the two ends of the cup body are slowly squeezed inward, and at the same time, the outer shell is shaped, and the single - and double - layer welding is completed.

2. The processing method for a single - and double - layer heat - resistant cup body according to claim 1, characterized in that, Step S 6 The dimensional tolerance of the inner liner flaring is required to be ±0.3 mm.

3. The processing method for a single - and double - layer heat - resistant cup body according to claim 1, characterized in that, Step S 7 In this step, the inner liner and the outer shell liner are heated in a circular furnace at a heating temperature of 560°C to 600°C.

4. The processing method for a single - and double - layer heat - resistant cup body according to claim 1, characterized in that, Step S 8 Put the sealed cup body into a circular furnace for heating, and the heating temperature is 560°C to 600°C.

5. The processing method for a single - and double - layer heat - resistant cup body according to claim 1, characterized in that, S 8 In the step, after the cup body is heated, place the cup body in the single and double layer welding and shaping machine and clamp both ends. The rotation speed requirement of the cup body is 150 - 200 r / min; The outer shell of the inner liner is fired at the position 3 - 10 mm below the inner liner. When the outer shell is burned to a soft red circle, the cup body is slowly pulled 0.5 - 1.2 mm in the direction of both ends. The softened red glass water slightly sinks inward. When firing the outer shell of the cup body, shaping is carried out at the same time. Then, the two ends of the cup body move inward quickly and are squeezed. The squeezed glass water seals the gap between the inner liner and the outer shell; Finally, the two ends of the cup body are slowly squeezed inward, and at the same time, the outer shell is shaped, and the single - and double - layer welding is completed.

6. The processing method for a single - and double - layer heat - resistant cup body according to claim 1, characterized in that, The inner liner flaring machine includes a frame. A lead screw guide rail is horizontally installed on the upper end surface of the frame. A tailstock drive motor is installed at the end of the lead screw guide rail. A tailstock is installed on the lead screw guide rail. A positioning cylinder is horizontally installed on the tailstock. A flaring die is horizontally installed at the front end of the piston rod of the positioning cylinder. The flaring die includes a cylindrical fixed section, and a flaring section in the shape of a cone is connected to the front end of the fixed section; A chuck opposite to the flaring die is fixedly installed on one side of the upper end of the frame. A slide rail is installed on the frame between the chuck and the lead screw guide rail. A flaring flame row that sprays fire upward is slidably installed on the slide rail; A first control screen with an internal control system is provided on the frame in front of the chuck. A first start switch and a first emergency stop switch electrically connected to the control system are provided below the first control screen. The control system in the first control screen is respectively electrically connected to the tailstock drive motor and the solenoid valve of the positioning cylinder.

7. The processing method for a single - and double - layer heat - resistant cup body according to claim 6, characterized in that, An auxiliary mechanism that moves synchronously is installed at the rear side of the tailstock. The auxiliary mechanism includes a longitudinal guide post. A lifting seat is slidably installed on the longitudinal guide post. A rotating shaft with the same orientation as the flaring die is rotatably installed on the lifting seat. A servo motor is installed at the upper end of the lifting seat. The output shaft of the servo motor is connected to the rotating shaft through a worm - gear mechanism. A rotating handle perpendicular to it is installed at the front end of the rotating shaft. A shaping die is provided on the rotating handle. The shaping die has the same orientation as the flaring die; It further includes a lifting motor, which is fixed on the frame on one side of the lifting seat. The output shaft end of the lifting motor is connected to a lifting lead screw, and the lifting lead screw is rotatably installed on the lead screw nut on the lifting seat; The electromagnetic valves of the servo motor and the lifting motor are electrically connected to the control system in the first control panel.

8. A processing method of a single-layer and double-layer anti-scald cup body according to claim 1 or 6, characterized in that, The single-layer and double-layer welding and shaping machine includes a machine body, on which a left lead screw guide rail and a right lead screw guide rail are arranged oppositely. The ends of the left lead screw guide rail and the right lead screw guide rail are respectively connected to a left tailstock drive motor and a right tailstock drive motor; a left tailstock and a right tailstock are respectively installed on the left lead screw guide rail and the right lead screw guide rail. Left chucks and right chucks are provided on the opposite surfaces of the left tailstock and the right tailstock, and left cylinders and right cylinders are respectively provided at the ends of the left chuck and the right chuck; An intermediate slide rail is installed on the machine body between the left lead screw guide rail and the right lead screw guide rail, and a welding and shaping flame row that sprays fire upward is slidably installed on the intermediate slide rail; an auxiliary mechanism that moves synchronously is installed at the rear of the right tailstock; A second control panel with a built-in control system is provided on the front side of the machine body. A second start switch and a second emergency stop switch electrically connected to the control system are provided below the second control panel. The control system in the second control panel is electrically connected to the electromagnetic valves of the power systems of the left tailstock drive motor, the right tailstock drive motor, and the auxiliary mechanism.

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