Constant-temperature water-cooling intelligent control structure of paper cup bottom rolling mold

Abstract

The invention discloses a constant-temperature water-cooling intelligent control structure of a paper cup bottom rolling die, which comprises a bottom rolling die and a main shaft, the bottom rolling die is fixed at the upper end of the main shaft, the main shaft is rotatably arranged on a shaft seat, and the constant-temperature water-cooling intelligent control structure is characterized in that a cold water seat is arranged below the bottom rolling die, and the upper end surface of the cold water seat is in contact with or close to the lower end surface of the bottom rolling die; the cold water seat is arranged on the main shaft in a relative rotation manner; a cold water groove is formed in the cold water base, a water inlet and a water outlet are correspondingly formed in the outer circle of the cold water base, an oil inlet hole and an oil outlet hole which are communicated with each other are further formed in the cold water base, the oil inlet hole is located in the outer circle of the cold water base, the oil outlet hole is located in the upper end face of the cold water base, and a circle of oil storage holes are correspondingly formed in the lower end face of the bottom rolling die in a surrounding mode. The cold water seat is further provided with a temperature sensor, the water inlet is provided with an electromagnetic valve, and the temperature sensor and the electromagnetic valve are both connected with a control system. The cold water base is reasonably arranged, effective cooling of the bottom rolling die is achieved, intelligent adjustment is achieved, and the constant temperature is kept.

Description

Technical Field

[0001] This invention relates to an improvement of paper cup forming equipment, and more particularly to an improvement of a constant temperature water-cooled intelligent control structure for a paper cup roll bottom mold. Background Technology

[0002] In the paper cup manufacturing industry, the bottom-rolling process requires bonding the cup bottom to the cup body using hot melt adhesive. Traditional bottom-rolling molds (especially when handling heat-sensitive materials such as double PE coated paper) have the following technical drawbacks: the high-speed rotation of the bottom-rolling mold and the friction with the paper cup generate high temperatures, causing the coated paper to melt and break. Existing bottom-rolling molds lack effective cooling devices and rely solely on air for heat dissipation, which is inefficient and cannot meet the requirements of high-speed operation. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a constant temperature water-cooled intelligent control structure for paper cup roll bottom mold.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a constant temperature water-cooled intelligent control structure for a paper cup bottom rolling mold, comprising a bottom rolling mold and a main shaft, wherein the bottom rolling mold is fixed to the upper end of the main shaft, and the main shaft is rotatably mounted on a shaft seat, characterized in that: a cold water seat is provided below the bottom rolling mold, the upper end face of the cold water seat contacts or is close to the lower end face of the bottom rolling mold, and the cold water seat is rotatably mounted on the main shaft; a cold water tank is provided inside the cold water seat, and a water inlet and a water outlet are provided on the corresponding outer circle of the cold water seat; the cold water seat is also provided with an oil inlet hole and an oil outlet hole that are interconnected, the oil inlet hole is located on the outer circle of the cold water seat, and the oil outlet hole is located on the upper end face of the cold water seat; a ring of oil storage holes is provided around the lower end face of the corresponding bottom rolling mold; a temperature sensor is also provided on the cold water seat, and a solenoid valve is provided at the water inlet, and both the temperature sensor and the solenoid valve are connected to the control system.

[0005] A bearing is provided between the cold water base and the main shaft, and a positioning plate is connected between the cold water base and the shaft seat.

[0006] A positioning key is provided between the cold water base and the positioning plate, and a keyway is provided on the outer circle of the cold water base and the upper end of the positioning plate.

[0007] The cold water tank is circular.

[0008] The outer diameter of the cold water base is slightly larger than that of the roll bottom die, and a ring of oil-blocking protrusions is provided on the outer edge of the cold water base.

[0009] Both the lower end face of the roll bottom mold and the upper end face of the cold water base are planar.

[0010] The beneficial effect of this invention is that the improved paper cup bottom rolling mold has a constant temperature water-cooled intelligent control structure. For paper materials such as double PE that have temperature requirements, this structure innovatively adds a cooling structure compared to the traditional bottom rolling structure, and realizes intelligent adjustment to maintain a constant temperature, effectively cooling the bottom rolling mold, protecting the paper cup, and improving the bottom rolling effect. Attached Figure Description

[0012] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] Figure 2 This is a cross-sectional view of the structure of the present invention.

[0015] Figure 3 This is a structural diagram of the roll bottom mold of the present invention.

[0016] Figure 4 This is a structural diagram of the water-cooled base of the present invention. Detailed Implementation

[0017] The accompanying drawings illustrate the structure of the present invention, and further details will be described below in conjunction with the drawings. In this embodiment, see the attached drawings. Figure 1-4 The constant temperature water-cooled intelligent control structure of the paper cup bottom rolling mold includes a bottom rolling mold 1 and a main shaft 2. The bottom rolling mold 1 is fixed to the upper end of the main shaft 2. The main shaft 2 is rotatably mounted on a shaft seat 3. A transmission gear is provided at the lower end of the main shaft 2. A cold water seat 4 is provided below the bottom rolling mold 1. The upper end surface of the cold water seat 4 contacts or is close to the lower end surface of the bottom rolling mold 1. The cold water seat 4 is rotatably mounted on the main shaft 2. A cold water tank 45 is provided inside the cold water seat 4, and a water inlet is provided on the outer circle of the corresponding cold water seat 4. The cooling water base 4 has an inlet 41 and an outlet 42. It also has an oil inlet 43 and an oil outlet 44 that communicate with each other. The oil inlet 43 is located on the outer circumference of the cooling water base 4, and the oil outlet 44 is located on the upper surface of the cooling water base 4. A ring of oil storage holes 11 is provided on the lower surface of the corresponding bottom-rolling die 1 to store additional lubricating oil. The cooling water base is also equipped with a temperature sensor, and the inlet is equipped with a solenoid valve. Both the temperature sensor and the solenoid valve are connected to a control system, which is an existing mechanical control system. When the cooling water base 4 and the bottom-rolling die 1 are placed close together, the gap between them is small, and the lubricating oil adheres between them, carrying out heat conduction and acting as a medium for heat transfer, thus accelerating heat transfer.

[0018] As a further improved specific implementation, a bearing 5 is provided between the cold water base 4 and the main shaft 2, and a positioning plate 6 is connected between the cold water base 4 and the shaft seat 3 to realize the relative rotation between the cold water base 4 and the main shaft 2.

[0019] As a further improved specific implementation, a positioning key 7 is provided between the cold water base 4 and the positioning plate 6, and a keyway is provided on the outer circle of the cold water base 4 and the upper end of the positioning plate 6. The positioning key 7 is inserted into the keyway from above, so that the cold water base 4 is limited to the positioning plate 6.

[0020] As a further improved specific implementation, the cold water tank 45 is annular to fully cool the cold water base 4.

[0021] As a further improved specific implementation, the outer diameter of the cold water base 4 is slightly larger than that of the roll bottom mold 1, and a ring of oil-blocking protrusions is provided on the outer edge of the cold water base 4 to physically block the splashing of lubricating oil and avoid contaminating the paper cup.

[0022] As a further improved implementation, the lower end face of the roll bottom mold 1 and the upper end face of the cold water base 4 are both planar, which improves the heat conduction efficiency.

[0023] The working principle of this invention is as follows: During the bottom rolling process, the bottom rolling mold 1 rotates at high speed, while the cold water base 4 is fixed in place by the limiting plate and the limiting key. In the cold water base 4, cooling water circulates through the inlet 41, the cold water tank 45, and the outlet 42 to cool the cold water base 4. The cold water base 4 is cooled by contact with the bottom rolling mold 1 or by contact with lubricating oil. The lubricating oil reaches the space between the cold water base 4 and the bottom rolling mold 1 through the oil inlet 43 and the oil outlet 44, playing a role in lubrication and heat transfer. The temperature sensor is used to sense the temperature of the cold water base and transmit the temperature signal to the control system. The control system controls the opening of the solenoid valve to control the supply of cold water, thereby automatically adjusting the temperature and maintaining a constant temperature.

[0024] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention, such as those applied to the bottom of paper bowl rolls, should be included within the scope of protection of the present invention.

Claims

1. A constant temperature water cooling intelligent control structure of a paper cup bottom curling mold, comprising a curling mold and a main shaft, the curling mold is fixed on the upper end of the main shaft, and the main shaft is rotatably arranged on a shaft seat, characterized in that: The cold water seat is rotatably arranged on the main shaft, and the upper end surface of the cold water seat contacts or is close to the lower end surface of the roll bottom mold. ​ 2. The constant temperature water cooling intelligent control structure of the paper cup bottom rolling die according to claim 1, characterized in that: A circle of oil storage holes is arranged on the lower end surface of the roll bottom mold.

3. The constant temperature water cooling intelligent control structure of the paper cup bottom rolling die according to claim 1, characterized in that: A bearing is arranged between the cold water seat and the main shaft, and a positioning plate is connected between the cold water seat and the shaft seat.

4. The constant temperature water cooling intelligent control structure of the paper cup bottom rolling die according to claim 3, characterized in that: A positioning key is arranged between the cold water seat and the positioning plate, and a key groove is arranged on the upper end of the positioning plate.

5. The constant temperature water cooling intelligent control structure of the paper cup bottom rolling die according to claim 1, characterized in that: The cold water tank is annular.

6. The constant temperature water cooling intelligent control structure of the paper cup bottom rolling die according to claim 1, characterized in that: The outer diameter of the cold water seat is slightly larger than that of the roll bottom mold, and a circle of oil blocking protrusions is arranged on the outer edge of the cold water seat.

7. The constant temperature water cooling intelligent control structure of the paper cup bottom rolling die according to claim 1, characterized in that: The lower end surface of the roll bottom mold and the upper end surface of the cold water seat are both flat.

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