A preheating mechanism based on a paperboard round-to-flat embosser
By designing the preheating mechanism of the cardboard rotary embossing machine and utilizing an infrared heating module and exhaust pipe structure, the problems of fiber breakage and inaccurate temperature control during the cardboard embossing process were solved, achieving uniform preheating of the cardboard and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGYIN XINYI COLOR PRITING PACKAGING CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-29
AI Technical Summary
Embossing cardboard at room temperature can easily lead to fiber breakage, unclear embossing, and delamination. Existing preheating methods suffer from inaccurate temperature control and low production efficiency.
Design a preheating mechanism based on a cardboard rotary embossing machine. Through an infrared heating module and an exhaust pipe structure, uniform preheating of the cardboard is achieved, reducing embossing pressure and extending mold life.
It achieves uniform preheating of cardboard, reduces embossing pressure, extends mold life, and improves production efficiency and energy saving.
Smart Images
Figure CN224302327U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cardboard embossing technology, and in particular relates to a preheating mechanism based on a cardboard rotary embossing machine. Background Technology
[0002] For rotary embossing machines for cardboard, the cooperation of male and female mold rollers can press and form embossing. However, cold pressing defects may occur, that is, cardboard fibers are relatively rigid at room temperature, and direct high pressure embossing can easily lead to fiber breakage, unclear embossing, or even delamination of the cardboard.
[0003] Preheating plates can be used to pre-dry cardboard, but this results in uneven heating and reduces production cycle time. Local heating (such as hot air guns) can also be used, but this can lead to inaccurate temperature control, which can cause cardboard deformation or over-drying. Summary of the Invention
[0004] The purpose of this utility model is to provide a preheating mechanism based on a cardboard rotary embossing machine. Through the design of the preheating mechanism, preheating can be performed before rotary embossing. Hot air can soften the cardboard, reduce the pressure required for embossing, save energy and extend the mold life, and at the same time, high-speed continuous embossing can be achieved, improving production efficiency.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] This utility model is a preheating mechanism based on a cardboard rotary embossing machine, including an embossing module and a preheating mechanism body. The embossing module is composed of male and female mold rollers that cooperate with each other.
[0007] The preheating mechanism body includes an exhaust pipe and a set of end fixing seats;
[0008] The end fixing seat includes a set of sleeves. The two sleeves are respectively fixed to the shaft ends of the male mold roller and the female mold roller by bearings. A connecting section is provided between the two sleeves. A folding arm is fixed on one side of the connecting section by fasteners.
[0009] The two end fixing seats are respectively fixed at both ends of the embossing module, and the exhaust pipe is fixed between the folded arms of the two end fixing seats;
[0010] The exhaust pipe includes a rectangular chamber and a heating chamber, with a constricted channel connecting the rectangular chamber and the heating chamber. An infrared heating module is fixed inside the heating chamber. An air inlet pipe is provided at the top of one end of the heating chamber. Several exhaust ports are provided on the bottom surface of the rectangular chamber. The diameter of the several exhaust ports of the rectangular chamber decreases sequentially from one end of the air inlet pipe to the other end.
[0011] Furthermore, it also includes a cardboard body that passes through a male mold roller and a female mold roller, with the bottom surface of the rectangular compartment facing the cardboard body parallel to it.
[0012] Furthermore, the end of the air inlet pipe is connected to an external air source, which is an air pump or a variable frequency fan.
[0013] Furthermore, the outer ring of the bearing is fixed to the inner wall of the sleeve, and an inner tube is fixed inside the inner ring of the bearing. The inner tube is connected to the shaft end by a pin.
[0014] Furthermore, the outer end of the folding arm is provided with a preset opening, and both ends of the exhaust pipe are fixed with screws. The screws pass through the preset opening and are threadedly connected with tightening nuts.
[0015] Furthermore, several temperature sensors are linearly arranged inside the rectangular chamber.
[0016] This utility model has the following beneficial effects:
[0017] 1. This utility model, through the design of a preheating mechanism, can preheat the cardboard before circular embossing. The hot air can soften the cardboard, reduce the pressure required for embossing, save energy and extend the mold life, and at the same time enable high-speed continuous embossing, thereby improving production efficiency.
[0018] 2. The present invention utilizes the design of the exhaust pipe, which, through the constricted channel, can achieve a certain pressurization effect, facilitating the discharge of hot air. The design of the exhaust port can evenly distribute the hot air, and the design of the port diameter from large to small can further ensure uniform exhaust and uniform preheating.
[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the preheating mechanism based on a cardboard circular embossing machine according to the present invention;
[0022] Figure 2 This is a schematic diagram of the structure at the connection between the end fixing seat and the male and female mold rollers;
[0023] Figure 3 This is a cross-sectional view of the exhaust pipe.
[0024] The attached diagram lists the components represented by each number as follows:
[0025] 1-Male mold roller, 2-Female mold roller, 3-Exhaust pipe, 4-End fixing seat, 301-Rectangular chamber, 302-Heating chamber, 303-Necked channel, 304-Infrared heating module, 305-Air inlet pipe, 306-Exhaust port, 307-Screw, 308-Tightening nut, 401-Sleeve, 402-Bearing, 403-Connecting section, 404-Folding arm, 405-Inner tube. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figure 1-2 As shown, this utility model is a preheating mechanism based on a cardboard rotary embossing machine, including an embossing module and a preheating mechanism body. The embossing module is composed of a male mold roller 1 and a female mold roller 2 that cooperate with each other.
[0028] The preheating mechanism body includes an exhaust pipe 3 and a set of end fixing seats 4;
[0029] The end fixing seat 4 includes a set of sleeves 401. The two sleeves 401 are fixed to the shaft ends of the male mold roller 1 and the female mold roller 2 respectively by bearings 402. A connecting section 403 is provided between the two sleeves 401. A folding arm 404 is fixed on one side of the connecting section 403 by fasteners.
[0030] The two end fixing seats 4 are respectively fixed to both ends of the embossing module, and the exhaust pipe 3 is fixed between the two end fixing seats 4 folding arms 404;
[0031] The exhaust pipe 3 includes a rectangular chamber 301 and a heating chamber 302. A constricted channel 303 connects the rectangular chamber 301 and the heating chamber 302. An infrared heating module 304 is fixed inside the heating chamber 302. An air inlet pipe 305 is provided at the top of one end of the heating chamber 302. Several exhaust ports 306 are provided on the bottom surface of the rectangular chamber 301. The diameter of the several exhaust ports 306 of the rectangular chamber 301 decreases sequentially from one end of the air inlet pipe 305 to the other end.
[0032] It also includes a cardboard body, which passes through the male mold roller 1 and the female mold roller 2, with the bottom surface of the rectangular compartment 301 facing the cardboard body in parallel.
[0033] The air inlet pipe 305 is connected to an external air source, which is an air pump or a variable frequency fan.
[0034] Among them, such as Figure 1-2 As shown, the outer ring of bearing 402 is fixed to the inner wall of sleeve 401, and an inner tube 405 is fixed inside the inner ring of bearing 402. The inner tube 405 is connected to the shaft end by a pin key.
[0035] Among them, such as Figure 1-2 As shown, the outer end of the folding arm 404 is provided with a preset port, and both ends of the exhaust pipe 3 are fixed with screws 307. The screws 307 pass through the preset port and are threadedly connected to tightening nuts 308.
[0036] Several temperature sensors are linearly installed inside the rectangular hopper 301.
[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A preheating mechanism based on a cardboard rotary embossing machine, comprising an embossing module and a preheating mechanism body, wherein the embossing module is composed of a male die roller (1) and a female die roller (2) that cooperate with each other, characterized in that: The preheating mechanism body includes an exhaust pipe (3) and a set of end fixing seats (4); The end fixing seat (4) includes a set of sleeves (401). The two sleeves (401) are fixed on the shaft ends of the male mold roller (1) and the female mold roller (2) respectively by bearings (402). A connecting section (403) is provided between the two sleeves (401). A folding arm (404) is fixed on one side of the connecting section (403) by fasteners. The two end fixing seats (4) are respectively fixed at both ends of the embossing module, and the exhaust pipe (3) is fixed between the folding arms (404) of the two end fixing seats (4); The exhaust pipe (3) includes a rectangular chamber (301) and a heating chamber (302). A constricted channel (303) is connected between the rectangular chamber (301) and the heating chamber (302). An infrared heating module (304) is fixed inside the heating chamber (302). A gas inlet pipe (305) is provided at the top of one end of the heating chamber (302). A number of exhaust ports (306) are provided on the bottom surface of the rectangular chamber (301). The diameter of the exhaust ports (306) of the rectangular chamber (301) decreases sequentially from one end of the gas inlet pipe (305) to the other end.
2. The preheating mechanism based on a cardboard rotary embossing machine according to claim 1, characterized in that, It also includes a cardboard body that passes through a male mold roller (1) and a female mold roller (2), with the bottom surface of the rectangular compartment (301) facing the cardboard body parallel to it.
3. The preheating mechanism based on a cardboard rotary embossing machine according to claim 1, characterized in that, The end of the air inlet pipe (305) is connected to an external air source, which is an air pump or a variable frequency fan.
4. The preheating mechanism based on a cardboard rotary embossing machine according to claim 1, characterized in that, The outer ring of the bearing (402) is fixed to the inner wall of the sleeve (401), and an inner tube (405) is fixed inside the inner ring of the bearing (402). The inner tube (405) is connected to the shaft end by a key.
5. A preheating mechanism based on a cardboard rotary embossing machine according to claim 1, characterized in that, The outer end of the folding arm (404) is provided with a preset opening, and both ends of the exhaust pipe (3) are fixed with screws (307). The screws (307) pass through the preset opening and are threadedly connected with tightening nuts (308).
6. The preheating mechanism based on a cardboard rotary embossing machine according to claim 1, characterized in that, Several temperature sensors are linearly arranged inside the rectangular compartment (301).