Automatic forming steam heating device for paper container
By integrating the wetting and heating of the cup rim of paper containers with a steam jet device, the problems of uneven wetting and low heating efficiency in paper container production are solved, the edge-rolling quality and production efficiency are improved, and automated production is realized.
Patent Information
- Application Number
- CN202511718172.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-21
- Publication Date
- 2026-01-23
AI Technical Summary
In current paper container production, the cup rim wetting and heat treatment processes suffer from unevenness, low efficiency, and low automation, which affect the edge-rolling quality and production efficiency.
It adopts a steam jet device that integrates steam jet wetting and synchronous heating functions. The steam jet seat evenly wets and heats the mouth of the cup. Combined with the steam heating coil and heat insulation cover, it achieves efficient integrated wetting and heating.
It achieves uniform wetting and heating of the rim of paper containers, improves the quality of edge rolling and production efficiency, increases the degree of automation, and meets the needs of continuous production.
Smart Images
Figure CN121375210A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the improvement of paper container forming equipment, in particular to the improvement of a paper container automatic forming steam heating device. BACKGROUND
[0002] In the automatic production process of paper containers (such as paper cups, paper bowls, etc.), cup edge curling is one of the key process links. The purpose of curling is to enhance the structural strength of the cup edge, improve the sealing performance, and improve the appearance of the product. However, before curling, the cup edge area must be properly wetted and heated to soften the paper fibers to prevent cracking, wrinkling or deformation during curling.
[0003] The traditional cup edge processing method is usually realized by manual or semi-automatic method: for example, using a wet towel to wipe the cup edge, or spraying water on the cup edge through a spraying device, and then using an independent heating element for drying or preheating. This method has the following significant defects: uneven wetting: spraying or wiping is difficult to ensure that each cup edge is consistent in moisture level, which can lead to fluctuations in curling quality; low heating efficiency: the separate heating station increases the equipment space and cycle time, affecting the production efficiency of the whole line; low automation level: relying on manual intervention or multi-process connection is not conducive to continuous and intelligent production. SUMMARY
[0004] The technical problem to be solved by the present application is to overcome the shortcomings of the prior art and provide a paper container automatic forming steam heating device.
[0005] To solve the above technical problems, the present application adopts the following technical scheme: the paper container automatic forming steam heating device comprises a steam spraying seat, characterized in that: the steam spraying seat comprises a main seat body, a plurality of steam spraying ports arranged around the lower part of the main seat body, and a steam distribution cavity connected with each steam spraying port, a heating and wetting cavity matched with the cup edge is arranged in the main seat body, and a steam inlet channel connected with the steam distribution cavity is arranged on one side of the main seat body.
[0006] The steam inlet channel is provided with steam inlets and reflux ports distributed upward and downward.
[0007] The steam inlet channel is provided with a spoiler, a flow divider and a barrier plate, the spoiler is uniformly distributed on the inner wall of the steam inlet channel, the flow divider is arranged at the steam inlet, and the barrier plate is arranged at the reflux port.
[0008] The lower part of the steam inlet channel is provided with a slope, and the reflux port is located at the bottom end of the slope.
[0009] A steam heating ring is arranged on the upper part of the outer periphery of the main seat body.
[0010] A heat shield is arranged on the outer side of the main seat body and the steam inlet channel.
[0011] The steam outlet is arranged obliquely downward and corresponds to the cup edge area to be crimped.
[0012] The steam spraying seat is arranged in a lifting manner.
[0013] The improved paper container automatic forming steam heating device is characterized in that a steam generator sends steam into a steam spraying seat through an air inlet channel, the steam is sprayed to the cup edge area to be crimped through a steam outlet, a steam heating ring heats the steam, a heat insulation material wraps the steam, and the above combines the wetting and heating processes into one, which can effectively improve the automation and production efficiency of the machine. BRIEF DESCRIPTION OF DRAWINGS
[0014] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings.
[0015] Fig. 1 The present application is a structural schematic diagram.
[0016] Fig. 2 The present application is a structural sectional view. DETAILED DESCRIPTION
[0017] The drawings show the structure of the present application, and the related details will be further described below with reference to the drawings. In the present embodiment, referring to the drawings, Figs. 1-2 The paper container automatic forming steam heating device comprises a steam spraying seat, the steam spraying seat comprises a main seat body 1, a plurality of steam outlets 2 arranged in a ring shape at the lower part of the main seat body 1, and a steam distribution cavity 3 connected with each steam outlet 2, the steam distribution cavity 3 is arranged in a ring shape at the outer periphery of the main seat body 1, a heating and wetting cavity 4 is arranged in the main seat body 1, the lower end of the main seat body 1 is matched with the cup edge, and a steam inlet channel 5 connected with the steam distribution cavity 3 is arranged on one side of the main seat body 1.
[0018] As a further improved specific embodiment, the steam inlet channel 5 is provided with steam inlets 6 and reflux ports 7 distributed upward and downward. The steam inlets 6: make the steam in the steam generator enter through the pipeline; the reflux ports 7: recycle the water formed in the steam due to condensation and flow disturbance, so as to avoid the influence of excessive water on the steam temperature.
[0019] As a further improved embodiment, the steam inlet channel 5 is provided with a spoiler 8, a flow divider 9 and a barrier plate 10, the spoiler 8 is uniformly distributed on the inner wall of the steam inlet channel 5, the flow divider 9 is arranged at the steam inlet 6, and the barrier plate 10 is arranged at the backflow port 7. Among them, the flow divider 9: slows down the steam entering speed, prevents the steam flow from being too large on one side of the steam inlet 6 and insufficient on the other side; the spoiler 8: reduces the excess water vapor in the steam, avoids excessive wetting and softening of the cup cylinder edge, and also has the effect of slowing down the steam flow rate; the barrier plate 10: blocks the backflow port 7 to prevent steam from being directly discharged from the backflow port 7 without being utilized.
[0020] As a further improved embodiment, the lower part of the steam inlet channel 5 is provided with a slope, and the backflow port 7 is located at the bottom end of the slope to guide the condensate backflow and discharge.
[0021] As a further improved embodiment, the outer periphery of the main seat body 1 is provided with a steam heating ring 11, preferably a steam heating copper ring, which has a steam inlet and outlet and can be connected to a steam generator to provide heat for the steam jet seat and ensure the temperature of the steam sprayed by the steam jet seat.
[0022] As a further improved embodiment, the main seat body 1 and the steam inlet channel 5 are provided with a heat shield 12 made of heat insulating material, which covers the outer side of the main seat body 1, the steam inlet channel 5 and the upper end of the heating and humidifying cavity 4 to avoid heat loss and cause insufficient steam temperature.
[0023] As a further improved embodiment, the steam jet port 2 is arranged obliquely downward and corresponds to the area to be curled of the cup opening. The obliquely sprayed steam can uniformly contact the area to be curled of the cup opening, and the heat-exchanged steam is discharged downward. At the same time, the cup opening can be externally arranged in the heating and humidifying cavity 4, preferably flush with the heating and humidifying cavity 4, or the insertion amount of the cup opening in the heating and humidifying cavity 4 can be reduced.
[0024] As a further improved embodiment, the steam jet seat can be arranged to be liftable, which is achieved by being connected to a lifting mechanism. By lifting, the heating and humidifying cavity 4 can be brought close to or sleeved into the cup opening.
[0025] The working principle of the paper container automatic forming steam heating device is to realize efficient pretreatment of the cup opening area of the paper container (such as a paper cup or a paper bowl) by integrating steam jet humidification and synchronous heating functions. The core is to use high-temperature saturated steam to simultaneously complete the two key steps of wetting and softening the paper fiber and heating to increase the temperature, thereby providing ideal conditions for the subsequent curling process.
[0026] The basic flow is as follows: steam generator → steam inlet channel 5 → steam distribution chamber 3 → steam outlet 2 → cup edge to be crimped area → steam heating ring 11 continuous heating + heat insulation cover 12 heat preservation → maintain stable temperature and humidity environment → crimped paper fiber fully softened and heated evenly → achieve high quality crimped forming.
[0027] To sum up, the above is only the preferred embodiment of the present application, not for limiting the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. An apparatus for automatically forming and steam heating paper containers, comprising a steam jet seat, characterized in that: The steam spraying seat comprises a main seat body, a plurality of steam spraying ports arranged around the lower part of the main seat body, and steam distribution cavities connected with the steam spraying ports, the steam distribution cavities are arranged around the periphery of the main seat body, a heating and humidifying cavity is arranged in the main seat body, the lower end of the main seat body is matched with a cup opening, a steam inlet channel connected with the steam distribution cavities is arranged on one side of the main seat body, steam inlets and backflow ports distributed upward and downward are arranged on the steam inlet channel, and a steam generator is connected with the steam inlets.
2. The paper container automated forming steam heating apparatus as claimed in claim 1, wherein: A spoiler, a flow divider and a barrier plate are arranged in the steam inlet channel, the spoiler is uniformly arranged on the inner wall of the steam inlet channel, the flow divider is arranged at the steam inlets, and the barrier plate is arranged at the backflow ports.
3. The paper container automated forming steam heating apparatus as claimed in claim 2, wherein: The lower part of the steam inlet channel is arranged as a slope, and the backflow ports are located at the bottom end of the slope.
4. The paper container automated forming steam heating apparatus as claimed in claim 1, wherein: A heat shield is arranged outside the main seat body and the steam inlet channel.
5. The paper container automated forming steam heating apparatus as claimed in claim 1, wherein: The steam spraying ports are arranged obliquely downward and correspond to the edge rolling area of the cup opening.
6. The paper container automated forming steam heating apparatus as claimed in claim 1, wherein: The steam spraying seat is arranged in a lifting mode.