Amber tea cup automatic production device and control method

Abstract

The invention discloses an automatic production device and control method for amber tea cups, which belong to the technical field of amber tea set production, and include a PLC controller, a press, an upper mold, and a lower mold. The device is designed to perform resistance heating through the cup mold resistance wire, the cup bottom mold resistance wire, the cup cavity mold resistance wire, and the upper mold plate resistance wire of the mold, thereby realizing uniform heating of the material in the mold; the control method of the device adopts a design that the PLC controller is connected to the light-controlled switch and the light-controlled probe and the limit point installed on the mold of the press head, thereby realizing precise control of the lifting and lowering of the press and the heating of the resistance wire, overcoming the problem of dark color or even burnt and scorched product caused by temperature and pressure errors generated by manual operation, thereby improving production efficiency and product quality stability.

Description

Technical Field

[0001] The invention belongs to the technical field of amber tea set production, and particularly relates to an automatic production device and a control method for amber tea cups. Background Art

[0002] Amber is an ancient resin fossil. It is an organic compound formed by the deposition, polymerization and geological activities of ancient plant resins. It is an organic gem listed in the National Standard of the People's Republic of China GB / T16552 "Names of Jewelry and Jade". It is transparent or translucent, has a resin luster, a Mohs hardness of 2-2.5, and a density of 1.03-1.08g / cm 3 , refractive index is 1.54.

[0003] Humans have been using amber for more than 7,000 years. Because of its rich colors and exquisite state, people process amber into jewelry to wear or collect. Amber particles or scraps that cannot be used as jewelry are made into large pieces of recycled amber materials through high temperature and high pressure.

[0004] The main components of amber are carbon, hydrogen and oxygen. It is rich in succinic acid, succinosilvic acid, succoxyabietic acid, succinoabietinolic acid, diabietinolic acid, succinoresinol, succinoabietol, borneol, etc. In addition, it also contains trace elements such as sodium, strontium, silicon, iron, tungsten, magnesium, aluminum, cobalt and gallium.

[0005] Amber has extremely high medicinal value. The latest research shows that succinic acid can maintain the acid balance in the human body, enhance human immunity, and is used as a potassium ion inhibitor and antioxidant, with special medicinal value in resisting the aging of human cells.

[0006] Amber softens when heated to about 150°C, melts at about 250°C, and carbonizes above 300°C. Based on the principle of amber pyrolysis evolution, some people use high temperature and high pressure to make broken amber into practical items such as teapots and teacups, turning waste into treasure, and achieving good economic benefits and market recognition.

[0007] The existing amber tea cup pressing equipment includes a press and a mold. The mold includes an upper mold and a lower mold. A heating plate is connected on the plane where the upper mold contacts the pressure head, and a heating plate is connected on the plane where the lower mold contacts the press workbench. A resistance wire is installed in the heating plate, and the mold is placed between the press head and the workbench. When pressing the product, the material is added into the mold, and the resistance wire in the heating plate is manually energized to heat the material in the mold. After the material softens, pressure is applied in sections for pressing. This pressing equipment has the following disadvantages: First, due to the poor thermal conductivity of amber, the material in the lower mold is heated unevenly during heating, and part of the material is oxidized; second, the operator needs to be on duty next to the press to increase the temperature and pressurize based on experience. Due to the large operating error, the pressing temperature and pressure are not accurate enough, resulting in oxidation reaction between the material and the oxygen in the air during pressing and forming, which reduces the transparency of the pressed piece, makes the color dim, and even burns and becomes sticky; third, when the mold temperature is high, the mold needs to be manually knocked for demolding. Low production efficiency and high scrap rate increase production costs. Summary of the invention

[0008] The purpose of the present invention is to solve the problems of uneven material heating, manual operation, low production efficiency and unstable product quality in the existing amber tea cup production equipment, and to provide an automatic amber tea cup production device with high degree of automation, precise control of process conditions, uniform material heating, high production efficiency and stable product quality, and a control method for the automatic amber tea cup production device.

[0009] The objective of the present invention is achieved through the following technical scheme: an automatic production device for amber tea cups, comprising a PLC controller, a press, an upper mold and a lower mold, characterized in that a T-shaped groove is formed on the bottom plane of the press head, the upper mold fixing bolt of the upper mold slides into the T-shaped groove, and the cup cavity mold insulation plate and the cup cavity mold fixing plate are fastened to the press head through the cup cavity mold fixing plate pressure plate and the nut, a cup cavity mold is provided at the center position of the lower surface of the cup cavity mold fixing plate, a resistance wire and a thermocouple are provided inside the cup cavity mold cylinder, an upper mold spring positioning rod is formed on the upper surface of the upper mold plate, one end of the upper mold spring is sleeved on the upper mold spring positioning rod, and the other end is supported on the bottom plane of the press head, the upper mold plate positioning bolt passes through the upper mold plate positioning bolt hole, and the end head of the upper mold plate positioning bolt screw is threaded into the thread groove of the cup cavity mold fixing plate, an upper mold body is installed at the center position of the upper mold plate, a cup cavity mold hole is formed at the center position of the upper mold body, and the cup cavity mold A cup wall groove is formed on the outside of the hole, and a cup mold wall groove is formed on the outside of the cup wall groove. An inverted T-shaped groove is formed on the top plane of the workbench of the press, and the lower mold fixing bolt of the lower mold slides into the inverted T-shaped groove, and the cup bottom mold insulation plate and the cup bottom mold fixing plate are fastened to the top plane of the press workbench through the cup bottom mold fixing plate pressure plate and the nut. A cup bottom mold is provided at the center of the cup bottom mold fixing plate, and a resistance wire and a thermocouple are provided inside the cylinder of the cup bottom mold. A lower mold spring positioning rod is formed on the lower surface of the lower mold plate, one end of the lower mold spring is sleeved on the lower mold spring positioning rod, and the other end is supported on the top plane of the press workbench, the lower mold plate positioning bolt passes through the lower mold plate positioning bolt rod hole, and the end head of the lower mold plate positioning bolt screw is threaded into the thread groove of the cup bottom mold fixing plate, a cup mold body is installed at the center of the lower mold plate, a cup bottom mold hole is formed at the center of the cup bottom mold body, a cup mold cavity is formed on the outside of the cup bottom mold hole, and a cup mold wall is formed on the outside of the cup mold cavity.

[0010] Preferably, it is characterized in that a resistance wire and a thermocouple are provided around the mold hole of the cup cavity mold of the upper template, a resistance wire and a thermocouple are provided around the mold hole of the cup bottom mold of the lower template, a lower template cover plate is provided on the lower surface of the lower template, a circular hole is formed at the center position of the lower template cover plate, the diameter of the circular hole is larger than the diameter of the cup bottom mold, so that the cup bottom mold can pass through the circular hole to reach the mold hole of the cup bottom mold.

[0011] Preferably, it is characterized in that the PLC controller is connected to a light-controlled switch, and the light-controlled switch includes an upper limit light-controlled probe, an AB segment limit light-controlled probe, a BC segment limit light-controlled probe and a lower limit light-controlled probe. The upper limit light-controlled probe, the AB segment limit light-controlled probe, the BC segment limit light-controlled probe and the lower limit light-controlled probe of the above-mentioned light-controlled probes are installed on the light-controlled limit probe mounting plate in sequence from top to bottom with a certain distance between them. A limit point is installed on the mold of the press ram. When the ram of the hydraulic press moves downward and the light of each segment limit light-controlled probe shines on the limit point, the command signal is turned on or off to realize the control of the lifting and lowering of the press and the heating of the resistance wire.

[0012] The control method of the automatic production device of amber tea cups of the present invention is characterized in that:

[0013] (1) AB section: After the material is loaded into the mold, press the automatic button, the PLC controller output terminal sends a descending command, and the press drives the upper mold to descend for the first time. When the AB section limit light control probe 39 detects the upper mold limit point S1, the upper mold stops descending, and the program issues a command to heat the cup mold resistance wire, the cup bottom mold resistance wire, the cup cavity mold resistance wire and the upper mold plate resistance wire (hereinafter referred to as 1-4 resistance wires) with resistance heating. The temperature is set to 240°C. When the temperature reaches 230°C, the timing starts, and the duration is 20 minutes.

[0014] (2) BC section: 20 minutes later, the PLC controller output terminal issues a second descent command, and the press drives the upper mold to descend for the second time. After the BC section limit light control probe 40 detects the upper mold limit point S1, the upper mold stops descending. Through program instructions, the temperature of the 1-4 resistance wires is set to 180°C. When the temperature reaches 170-185°C, the timing starts, and the duration is 30 minutes.

[0015] (3) CD segment: 30 minutes later, the PLC controller output terminal issues the third descent command, and the press drives the upper mold to descend for the third time. When the press head drops to the press compaction limit point S3, the upper mold stops descending, and the upper mold and the lower mold are compacted. The program issues a cooling command, and the 1-4 resistance wires begin to cool down. The temperature is set to 110°C. When the temperature of the 1-4 resistance wires reaches 110-114°C, the timing starts, and the duration is 35 minutes.

[0016] (4) DE section: demolding stage. After 35 minutes, the output terminal of the PLC controller sends an upper mold rising command, and the press drives the upper mold to rise. When the AB section limit light control probe 39 detects the upper mold limit point S1, the upper mold stops rising, and the program issues a cooling command. The temperature of the 1-4 resistance wires is set to 0°C. After 20 minutes of natural cooling, the alarm is triggered to notify the demolding.

[0017] The beneficial effects of the present invention are:

[0018] The automatic production device and control method of an amber tea cup of the present invention realizes uniform heating of the material in the mold and overcomes oxidation of the material through the design of resistance heating of the cup mold resistance wire, the cup bottom mold resistance wire, the cup cavity mold resistance wire and the upper mold plate resistance wire of the mold;

[0019] The PLC controller is used to connect the light-controlled switch and light-controlled probe as well as the design of the limit point installed on the die of the press head, which realizes the precise control of the press lifting and the heating of the resistance wire. The operator does not need to be trained, which overcomes the temperature and pressure errors caused by manual operation and the problems of dark or even burnt products caused by the errors, thus improving the production efficiency and product quality stability.

[0020] When demolding, the press head is lifted, and the lower die spring and the upper die spring bounce up the upper and lower die plates to achieve automatic demolding, which overcomes the problem of manual knocking on the mold for demolding when the mold temperature is high in existing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a front view of the lower mold of an automatic production device for amber tea sets of the present invention;

[0022] Figure 2 This is a top view of the lower template of an automatic production device for amber tea sets of the present invention;

[0023] Figure 3 This is a front view of the upper mold of an automatic production device for amber tea sets of the present invention;

[0024] Figure 4 This is a bottom view of an upper template of an automatic production device for amber tea sets of the present invention;

[0025] Figure 5 It is a schematic diagram of a light control system of an automatic production device for amber tea sets of the present invention;

[0026] In the figure: 1- lower template, 2- cup mold body, 3- cup bottom mold fixing plate pressure plate, 4- lower mold fixing bolt, 5- lower template positioning bolt, 6- lower template cover plate, 7- lower mold spring positioning rod, 8- cup bottom mold insulation plate, 9- cup bottom mold fixing plate, 10- lower mold spring, 11- cup bottom mold resistance wire interface, 12- upper mold fixing bolt, 13- cup bottom mold, 14- cup mold resistance wire interface, 15- cup cavity mold fixing plate pressure plate, 16- upper mold spring positioning rod, 17- cup cavity mold resistance wire interface, 18- cup cavity mold fixing plate, 19- cup cavity mold insulation plate, 20- upper template resistance wire interface, 21- cup cavity mold, 22- upper template, 23- upper template positioning bolt, 24- upper mold spring, 25- upper mold body, 26- cup mold wall groove, 27- Upper template positioning bolt hole, 28- lower template positioning bolt head hole, 29- cup wall groove, 30- cup cavity mold hole, 31- lower template positioning bolt rod hole, 32- upper template positioning bolt head hole, 33- cup bottom mold hole, 34- cup mold cavity, 35- cup mold wall, 36- controller, 37- optical limit probe mounting plate, 38- upper limit optical control probe, 39- AB segment limit optical control probe, 40- BC segment limit optical control probe, 41- lower limit optical control probe.

[0027] Embodiments of the present invention are described below with reference to the accompanying drawings. DETAILED DESCRIPTION

[0028] The automatic production device of amber tea cups of the present invention comprises a PLC controller (programmable logic controller) 36, a hydraulic press (the press of the present embodiment adopts a hydraulic press), an upper mold (see Figure 3 ), lower mold (see Figure 1), characterized in that a T-shaped slot is formed on the bottom plane of the hydraulic press head, and there are two T-shaped slots that penetrate the bottom plane of the hydraulic press head. There are four upper mold fixing bolts 12, and the top diameter of the upper mold fixing bolts 12 is larger than the diameter of the screw. The top of the upper mold fixing bolt 12 of the upper mold slides into the T-shaped slot, and the cup cavity mold insulation plate 19 and the cup cavity mold fixing plate 18 are fastened to the hydraulic press head through the cup cavity mold fixing plate pressure plate 15 and the nut. A cup cavity mold resistance wire interface 17 is formed on the side of the cup cavity mold fixing plate 18, which is used to connect the cup cavity mold resistance wire and thermocouple. A cup cavity mold 21 is provided at the center position of the lower surface of the cup cavity mold fixing plate 18. The shape of the cup cavity mold 21 is consistent with the cup mold cavity 34. The interior of the cylindrical body of the cup cavity mold 21 is provided with a resistance wire and a thermocouple. The resistance wire heats the cup cavity mold 21, and the thermocouple is used to detect the temperature of the cup cavity mold 21. Four upper die spring positioning rods 16 are welded on the upper surface of the upper die plate 22. One end of the four upper die springs 24 is sleeved on the upper die spring positioning rods 16, and the other end is supported on the bottom plane of the hydraulic press head. The upper die plate 22 is provided with an upper die positioning bolt hole 27 and a lower die positioning bolt head hole 28. When the upper die plate 22 and the lower die plate 1 are pressed together, the lower die positioning bolt head can be inserted into the lower die positioning bolt head hole 28, so that the upper die plate 22 and the lower die plate 1 fit together. The upper die positioning bolt 23 can pass through the upper die positioning bolt hole 27, and the end of the upper die positioning bolt 23 screw is screwed into the thread groove of the cup cavity mold fixing plate 18. The upper die body 25 is installed at the center of the upper die plate 22, and the cup cavity mold hole 30 is formed at the center of the upper die body 25. The cup cavity mold 21 can pass through the cup cavity mold hole 30 to press the material in the cup mold cavity 34. A cup wall groove 29 is formed on the outside of the cup cavity mold hole 30, so that when the pressure head is pressed down, the cup wall of the teacup can be formed. A cup mold wall groove 26 is formed on the outside of the cup wall groove 29, and the cup mold wall groove 26 can be pressed with the cup mold wall 35. The side of the upper mold plate 22 is formed with an upper mold plate resistance wire interface 20 for connecting the upper mold plate resistance wire and thermocouple. The resistance wire and thermocouple surround the upper mold plate 22 around the cup cavity mold hole 30, and are used to heat and detect the temperature of the upper mold body 25. The outer side of the upper mold plate positioning bolt hole 27 of the upper mold plate 22 is symmetrically formed with four lower mold plate positioning bolt head holes 28. When the hydraulic press pressure head descends, the lower mold plate positioning bolt head enters the lower mold plate positioning bolt head hole 28, so that the upper mold plate 22 and the lower mold plate 1 can be pressed together.

[0029] The top plane of the hydraulic press workbench is provided with an inverted T-shaped groove, and there are two inverted T-shaped grooves, which penetrate the top plane of the hydraulic press workbench. The four lower mold fixing bolts 4 of the lower mold slide into the inverted T-shaped grooves, and the cup bottom mold insulation plate 8 and the cup bottom mold fixing plate 9 are fastened to the top plane of the hydraulic press workbench through four cup bottom mold fixing plate pressure plates 3 and nuts. A cup bottom mold 13 is provided at the center of the cup bottom mold fixing plate 9. The cup bottom mold 13 is cylindrical with a convex top. The diameter of the cup bottom mold 13 is larger than the diameter of the cup bottom mold mold hole 33, so that the cup bottom mold 13 will not pass through the cup bottom mold mold hole 33, and the top convex of the cup bottom mold 13 will press against the material in the cup bottom mold mold hole 33, playing a molding role and pressing into a cup bottom. A resistance wire and a thermocouple are provided inside the cylinder of the cup bottom mold 13, and the cup bottom mold resistance wire and the thermocouple are connected through the cup bottom mold resistance wire interface 11 on the side of the cup bottom mold fixing plate 9. The lower mold plate 1 is rectangular and has the same size as the upper mold plate 22. Four lower mold spring positioning rods 7 are formed near the four corners of the lower surface of the lower mold plate 1. One end of the four lower mold springs 10 is sleeved on the lower mold spring positioning rod 7, and the other end is supported on the top plane of the hydraulic press workbench. The lower mold plate 1 is formed with an upper mold plate positioning bolt head hole 32 and a lower mold plate positioning bolt rod hole 31. When the upper mold plate 22 and the lower mold plate 1 are pressed together, the bolt head of the lower mold fixing bolt 4 can be inserted into the upper mold plate positioning bolt head hole 32, so that the upper mold plate 22 and the lower mold plate 1 fit together, and the lower mold plate positioning bolt 5 can pass through the lower mold plate positioning bolt rod hole 31. The end of the screw of the lower mold plate positioning bolt 5 is screwed into the thread groove of the cup bottom mold fixing plate 9 to achieve the positioning of the lower mold plate 1 and the lower mold spring 10. The center of the lower mold plate 1 is provided with a cup mold body 2, the center of the cup mold body 2 is provided with a cup bottom mold hole 33, the outer side of the cup bottom mold hole 33 is provided with a cup mold cavity 34, the outer side of the cup mold cavity 34 is provided with a cup mold wall 35, and the lower mold plate 1 is provided with a cup mold resistance wire and a thermocouple around the cup bottom mold hole 33, and the cup mold resistance wire and the thermocouple are connected through the cup mold resistance wire interface 14. The lower surface of the lower mold plate 1 is provided with a lower mold plate cover plate 6, and the center of the lower mold plate cover plate 6 is provided with a circular hole, the diameter of the circular hole is larger than the diameter of the cup bottom mold 13, so that the cup bottom mold 13 can pass through the circular hole to reach the cup bottom mold hole 33.

[0030] When the hydraulic press head presses down, the lower mold plate 1 moves downward, and the lower mold spring 10 is compressed, so that the cup bottom mold 13 passes through the lower mold cover plate 6 and presses against the material in the cup bottom mold hole 33. The upper mold plate 22 moves upward, and the upper mold spring 24 is compressed, so that the cup cavity mold 21 passes through the cup cavity mold hole 30 of the upper mold plate 22, and the upper mold body 25 and the lower mold body 2 are pressed together, and the material in the cup mold cavity 34 is pressed into a teacup. When the hydraulic press head rises, the upper mold plate 22 and the lower mold plate 1 are bounced apart by the upper mold spring 24 and the lower mold spring 10.

[0031] The PLC controller 36 is connected to a light-controlled switch, which includes an upper limit light-controlled probe 38, an AB segment limit light-controlled probe 39, a BC segment limit light-controlled probe 40 and a lower limit light-controlled probe 41. The upper limit light-controlled probe 38, the AB segment limit light-controlled probe 39, the BC segment limit light-controlled probe 40 and the lower limit light-controlled probe 41 of the light-controlled probe are sequentially installed on the light-controlled limit probe mounting plate 37 at a certain distance from top to bottom. The mold of the hydraulic press ram is installed with an upper mold limit point S1 and a ram protection limit point S2, and the hydraulic press is also equipped with a hydraulic press compaction limit point S3. When the output end of the PLC controller sends a descending command, the hydraulic press drives the upper mold to descend for the first time, and when the AB segment limit light-controlled probe 39 detects the upper mold limit point S1, the upper mold stops descending. When the output end of the PLC controller sends a descending command, the hydraulic press drives the upper mold to descend for the second time, and when the BC segment limit light-controlled probe 40 detects the upper mold limit point S1, the upper mold stops descending. When the output end of the PLC controller issues the third descending command, the hydraulic press drives the upper mold to descend for the third time. When the hydraulic press head descends to the hydraulic press compaction limit point S3, the upper mold stops descending, and the upper mold and the lower mold are compacted. When the lower limit optical control probe 41 detects the upper mold limit point S1, the hydraulic press head stops moving downward, which protects the head. When the light of each limit optical control probe irradiates the limit point, the command signal is turned on or off to realize the control of the lifting and lowering of the hydraulic press head and the heating of the resistance wire.

[0032] The present invention adopts Mitsubishi FX2N-32MR PLC, and the programming software used is GX Works2. Temperature is collected through thermocouples, and then the voltage signal is transmitted to the input end of the signal collector. The signal collector transmits the signal to the PLC controller through the FX2N-485-BD communication module. The automatic control button and the light-controlled switch are connected to the input end (DI) of the FX2N-32MR PLC, and the lifting and lowering of the hydraulic press and the heating of the resistance wire are controlled through the output end (DO) of the FX2N-32MR PLC.

[0033] The PLC controller program control process of this embodiment is as follows:

[0034] (1) AB section: After the material is loaded into the mold, press the automatic button, the PLC controller output terminal sends a descending command, and the hydraulic press drives the upper mold to descend for the first time. When the AB section limit light control probe 39 detects the upper mold limit point S1, the upper mold stops descending, and the program issues a command to heat the cup mold resistance wire, cup bottom mold resistance wire, cup cavity mold resistance wire and upper mold plate resistance wire (hereinafter referred to as 1-4 resistance wires) with resistance heating. The temperature is set to 240°C. When the temperature reaches 230°C, the timing starts, and the duration is 20 minutes.

[0035] (2) BC section: 20 minutes later, the PLC controller output terminal issues a second descent command, and the hydraulic press drives the upper mold to descend for the second time. After the BC section limit light control probe 40 detects the upper mold limit point S1, the upper mold stops descending. Through program instructions, the temperature of the 1-4 resistance wires is set to 180°C, and the fan is used for cooling. When the temperature reaches 170-185°C, the timing starts, and the duration is 30 minutes.

[0036] (3) CD segment: 30 minutes later, the output terminal of the PLC controller issues the third descent command, and the hydraulic press drives the upper mold to descend for the third time. When the hydraulic press head drops to the hydraulic press compaction limit point S3, the upper mold stops descending, and the upper mold and the lower mold are compacted. The program issues a cooling command, and the 1-4 resistance wires begin to cool down. The temperature is set to 110°C and the fan is used for cooling. When the temperature of the 1-4 resistance wires reaches 110-114°C, the timing starts, and the duration is 35 minutes.

[0037] (4) DE section: demolding stage. After 35 minutes, the output terminal of the PLC controller sends an upper mold rising command, and the hydraulic press drives the upper mold to rise. When the AB section limit light control probe 39 detects the upper mold limit point S1, the upper mold stops rising, and the program issues a cooling command. The temperature of the 1-4 resistance wires is set to 0°C. After 20 minutes of air cooling, the alarm is triggered. The alarm duration is set to five minutes, notifying the demolding. After 5 minutes, the alarm is automatically released. During this period, the alarm can also be manually canceled.

Claims

1. An automatic production device for amber tea cups, comprising a PLC controller (36), a press, an upper mold, and a lower mold, characterized in that A T-shaped groove is formed on the bottom plane of the press head, and the upper mold fixing bolt (12) of the upper mold slides into the T-shaped groove. The cup cavity mold insulation plate (19) and the cup cavity mold fixing plate (18) are fastened to the press head through the cup cavity mold fixing plate pressure plate (15) and the nut. A cup cavity mold (21) is provided at the center position of the lower surface of the cup cavity mold fixing plate (18). The interior of the cylindrical body of the cup cavity mold (21) is provided with a resistance wire and a thermocouple. The upper surface of the upper mold plate (22) is provided with an upper mold spring positioning rod (16). One end of the upper mold spring (24) is sleeved on the upper mold. The spring positioning rod (16) is supported on the bottom plane of the press head. The upper template positioning bolt (23) passes through the upper template positioning bolt hole (27). The end of the screw of the upper template positioning bolt (23) is screwed into the thread groove of the cup cavity mold fixing plate (18). The upper mold body (25) is installed at the center of the upper mold body (22). The center of the upper mold body (25) is formed with a cup cavity mold hole (30). The outer side of the cup cavity mold hole (30) is formed with a cup wall groove (29). The outer side of the cup wall groove (29) is formed with a cup mold wall groove (2 6), an inverted T-shaped groove is formed on the top plane of the workbench of the press machine, the lower mold fixing bolt (4) of the lower mold slides into the inverted T-shaped groove, and the cup bottom mold insulation plate (8) and the cup bottom mold fixing plate (9) are fastened to the top plane of the workbench of the press machine through the cup bottom mold fixing plate pressure plate (3) and the nut, a cup bottom mold (13) is provided at the center position of the cup bottom mold fixing plate (9), and a resistance wire and a thermocouple are provided inside the cylinder of the cup bottom mold (13), a lower mold spring positioning rod (7) is formed on the lower surface of the lower mold plate (1), and one end of the lower mold spring (10) is sleeved on the lower mold spring. The mold spring is supported on a positioning rod (7), and the other end is supported on the top plane of the press workbench. The lower mold positioning bolt (5) passes through the lower mold positioning bolt rod hole (31), and the end of the screw of the lower mold positioning bolt (5) is screwed into the thread groove of the cup bottom mold fixing plate (9). A cup mold body (2) is installed at the center of the lower mold (1), and a cup bottom mold hole (33) is formed at the center of the cup mold body (2). A cup mold cavity (34) is formed on the outside of the cup bottom mold hole (33), and a cup mold wall (35) is formed on the outside of the cup mold cavity (34).

2. According to the automatic production device of amber tea cups described in claim 1, it is characterized in that A resistance wire and a thermocouple are arranged around the mold hole (30) of the cup cavity mold of the upper mold plate (22); a resistance wire and a thermocouple are arranged around the mold hole (33) of the cup bottom mold of the lower mold plate (1); a lower mold plate cover plate (6) is arranged on the lower surface of the lower mold plate (1); a circular hole is formed at the center of the lower mold plate cover plate (6); the diameter of the circular hole is larger than the diameter of the cup bottom mold (13), so that the cup bottom mold (13) can pass through the circular hole and reach the mold hole (33) of the cup bottom mold.

3. The automatic production device for amber tea cups according to claim 1 or 2, characterized in that The PLC controller (36) is connected to a light-controlled switch, which includes an upper limit light-controlled probe (38), an AB segment limit light-controlled probe (39), a BC segment limit light-controlled probe (40) and a lower limit light-controlled probe (41). The upper limit light-controlled probe (38), the AB segment limit light-controlled probe (39), the BC segment limit light-controlled probe (40) and the lower limit light-controlled probe (41) of the light-controlled probes are sequentially installed on a light-controlled limit probe installation plate (37) at a certain distance from top to bottom. A limit point is installed on the mold of the press head. When the press head moves downward and the light of each limit light-controlled probe irradiates the limit point, the command signal is turned on or off, thereby realizing the control of the lifting and lowering of the press and the heating of the resistance wire.

4. A control method for the automatic production device of amber tea cups according to any one of claims 1 to 3, characterized in that: ① AB section: After the material is loaded into the mold, the automatic button is pressed, and the output terminal of the PLC controller issues a descending command. The press drives the upper mold to descend for the first time. When the AB section limit light control probe (39) detects the upper mold limit point S1, the upper mold stops descending. The program issues a command, and the cup mold resistance wire, cup bottom mold resistance wire, cup cavity mold resistance wire and upper mold plate resistance wire, i.e., 1-4 resistance wires, are heated by resistance. The temperature is set to 240°C. When the temperature reaches 230°C, the timing starts, and the duration is 20 minutes. ② BC section: 20 minutes later, the PLC controller output terminal issues a second descent command, and the press drives the upper mold to descend for the second time. After the BC section limit optical control probe (40) detects the upper mold limit point S1, the upper mold stops descending. Through program instructions, the temperature of the 1-4 resistance wires is set to 180°C. When the temperature reaches 170-185°C, the timing starts, and the duration is 30 minutes. ③ CD segment: 30 minutes later, the PLC controller output terminal issues the third descent command, and the press drives the upper mold to descend for the third time. When the press head drops to the press compaction limit point S3, the upper mold stops descending, and the upper mold and the lower mold are compacted. The program issues a cooling command, and the 1-4 resistance wires begin to cool down. The temperature is set to 110°C. When the temperature of the 1-4 resistance wires reaches 110-114°C, the timing starts, and the duration is 35 minutes. ④ DE section: demoulding stage. After 35 minutes, the PLC controller output terminal issues an upper mold rising command, and the press drives the upper mold to rise. When the AB section limit light control probe (39) detects the upper mold limit point S1, the upper mold stops rising. The program issues a command to continue cooling. The temperature of the 1-4 resistance wires is set to 0℃. After 20 minutes of natural cooling, the alarm is triggered to notify demoulding.

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