Preheater for corrugated paper production

By designing structures such as slots, limiting grooves, and driving pressure rollers in the preheating machine for corrugated paper production, the problem of corrugated paper base paper being difficult to pass through the machine for preheating quickly has been solved, achieving rapid and stable preheating and drying of corrugated paper base paper and improving preheating efficiency.

CN224186517UActive Publication Date: 2026-05-01QINGDAO ZHENGCHANG PACKAGING TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO ZHENGCHANG PACKAGING TECHNOLOGY CO LTD
Filing Date
2025-05-12
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing preheating machines used in corrugated paper production cannot quickly pass corrugated base paper through the machine for preheating, which affects the efficiency of preheating.

Method used

The preheater housing is designed with slots and limiting slides at both ends. Combined with the drive pressure roller and roller, and through the cooperation of the limiting pin and pressure strip, the corrugated paper base paper is stably conveyed. The heating mechanism and heating plate are used to preheat and dry both sides of the paper at the same time.

Benefits of technology

This technology enables corrugated paper to pass through the machine for preheating quickly and stably, improving preheating efficiency and production efficiency.

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Abstract

The utility model relates to the field of corrugated paper production, and discloses a pre-heater for corrugated paper production, which comprises a pre-heater shell, notches are formed in the two ends of the pre-heater shell in a penetrating manner, a movable frame is arranged in an inner cavity of the pre-heater shell, limiting sliding chutes are symmetrically formed in the inner wall of the pre-heater shell, and the limiting sliding chutes are arranged in the movable frame. According to the preheating machine for corrugated paper production, through cooperation of the limiting sliding grooves and the rolling wheels at the bottoms of the supporting legs, after the moving frame penetrating through a notch is moved out of a shell of the preheating machine, a pressing strip is taken down, and the moving frame is moved out of the shell of the preheating machine through the limiting sliding grooves and the rolling wheels at the bottoms of the supporting legs; after the end of the corrugated base paper is put into the pressing groove, the pressing strip is put back to press the end of the base paper, then the pressing strip is limited through cooperation with the groove and the limiting pin, the movable frame is pushed back, then the corrugated base paper can be preheated, and the problem that according to an existing preheating machine, the corrugated base paper is difficult to penetrate through the machine rapidly to be preheated is solved.
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Description

A preheater for corrugated paper production Technical Field

[0001] This utility model relates to the field of corrugated paper production technology, specifically a preheating machine for corrugated paper production. Background Technology

[0002] A corrugated board production line, or simply a corrugated line, is a key production equipment for corrugated box manufacturers. It is the most important production line equipment in a carton packaging company, and includes several important components such as wet end equipment, dry end equipment, and production management system.

[0003] Patent CN218410604U discloses a preheating machine for corrugated paper production. It includes a base plate, with support plates fixedly connected to both sides of the top of the base plate. A platform is fixedly connected to the top of the support plates, and a housing is fixedly connected to the top of the platform. A transmission plate is fixedly connected to the inner wall of the housing. A rotating rod is movably connected to the surface of the transmission plate, and a transmission roller is fixedly connected to the surface of the rotating rod. This device allows the preheating machine to simultaneously dry both sides of the corrugated paper base, thereby increasing the preheating effect of the corrugated paper base and improving the efficiency of corrugated paper production, which is highly suitable for the current market.

[0004] However, the preheater housing of this device is a single unit, while the corrugated base paper to be dried is relatively soft. Directly inserting the soft corrugated base paper into the housing from the feed port makes it difficult to ensure that the corrugated base paper can quickly pass through the housing and be moved out from the outlet at the other end, thus affecting the preheating treatment of the corrugated base paper. To address this issue, a preheater for corrugated paper production is proposed to solve the problem that existing preheaters cannot quickly pass the corrugated base paper through the machine for preheating. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a preheating machine for corrugated paper production, which solves the aforementioned problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a preheating machine for corrugated paper production, comprising a preheating machine housing, with slots extending through both ends of the preheating machine housing, a movable frame disposed within the inner cavity of the preheating machine housing, symmetrically provided limit grooves on the inner wall of the preheating machine housing, symmetrically and fixedly connected support legs at the bottom of the movable frame, rollers disposed at the bottom of the support legs, a driving pressure roller disposed within the inner cavity of the preheating machine housing, the driving pressure roller being disposed within the inner cavity of the preheating machine housing via a rotating shaft, rollers rotatably disposed within the inner cavity of the movable frame, a pressure groove disposed at the top of the movable frame, a pressure strip disposed within the inner cavity of the pressure groove, grooves disposed on both sides of the movable frame, limit pins extending through the inner cavity of the grooves, a preheating mechanism disposed on one side of the preheating machine housing, and a driving mechanism disposed on the other side of the preheating machine housing.

[0009] Preferably, the movable frame passes through the slots at both ends of the preheater housing, the two sides of the movable frame are located in the inner cavity of the limiting slide groove and are slidably connected, and the driving pressure roller is located at the top of the roller.

[0010] Preferably, the limiting pin passes through the groove into the inner cavity of the pressure groove, and the limiting pin passes through the inner cavity of the pressure strip.

[0011] Preferably, the preheating mechanism includes a heating seat disposed on one side of the preheater housing, the heating seat being hollow and provided with a heating tube, and heating plates being symmetrically arranged in the inner cavity of the preheater housing.

[0012] Preferably, the heating plate is hollow inside and communicates with the inner cavity of the heating seat. The two heating plates are located at the top and bottom of the moving frame, respectively. An exhaust hole is opened through the side of the heating plate facing the moving frame. A fan is fixedly connected to the top of the preheater housing. A connecting pipe is provided on one side of the fan and communicates with the heating seat.

[0013] Preferably, the drive mechanism includes a drive sprocket fixedly connected to the rotating shaft, the drive sprocket being connected via a drive chain, and a motor fixedly connected to one side of the preheater housing, the output shaft of the motor being fixedly connected to the rotating shaft.

[0014] (III) Beneficial Effects

[0015] 1. This preheating machine for corrugated paper production, through the cooperation of the limiting slide groove and the rollers at the bottom of the support legs, moves the moving frame through the groove opening out of the preheating machine housing, removes the pressure bar, puts the end of the corrugated paper into the pressure groove, puts the pressure bar back to press the end of the paper, and then uses the groove and limiting pin to limit the pressure bar, pushes the moving frame back to perform the preheating treatment of the corrugated paper, which solves the problem that existing preheating machines are difficult to quickly pass the corrugated paper through the machine for preheating.

[0016] 2. In this preheating machine for corrugated paper production, when one end of the corrugated paper is limited on the moving frame and the moving frame is reset, the corrugated paper can smoothly pass through the preheating machine housing. At this time, the corrugated paper is located between the drive pressure roller and the roller and is pressed. Then, the drive mechanism, in conjunction with the rotating shaft, drives the drive pressure roller to rotate and transport the paper. With the preheating mechanism, the paper can be preheated and dried from both sides at the same time. The drive pressure roller and the roller flatten the corrugated paper, ensuring the preheating and drying effect of this preheating machine for corrugated paper production. Attached Figure Description

[0017] Figure 1 is a structural diagram of this utility model;

[0018] Figure 2 is a cross-sectional view of the structure of this utility model;

[0019] Figure 3 is a structural diagram of this utility model;

[0020] Figure 4 is a cross-sectional view of the heating base and heating plate of this utility model.

[0021] Figure 5 is a structural diagram of this utility model.

[0022] In the diagram: 1. Preheater housing; 2. Groove; 3. Moving frame; 4. Limiting slide; 5. Support leg; 6. Roller; 7. Drive pressure roller; 8. Roller; 9. Pressure groove; 10. Pressure strip; 11. Groove; 12. Limiting pin; 13. Preheating mechanism; 131. Heating seat; 132. Heating tube; 133. Heating plate; 134. Exhaust port; 135. Fan; 136. Connecting pipe; 14. Rotating shaft; 15. Drive mechanism; 151. Drive sprocket; 152. Drive chain; 153. Motor. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example: Please refer to Figures 1-5. A preheating machine for corrugated paper production includes a preheating machine housing 1. Both ends of the preheating machine housing 1 are provided with slots 2. The inner cavity of the preheating machine housing 1 is provided with a movable frame 3. The inner wall of the preheating machine housing 1 is symmetrically provided with limiting grooves 4. The bottom of the movable frame 3 is symmetrically and fixedly connected with support legs 5. The bottom of the support legs 5 is provided with rollers 6. The inner cavity of the preheating machine housing 1 is provided with a driving pressure roller 7. The driving pressure roller 7 is set in the inner cavity of the preheating machine housing 1 through a rotating shaft 14. The inner cavity of the movable frame 3 is rotatably provided with rollers 8. The top of the movable frame 3 is provided with a pressure groove 9. The inner cavity of the pressure groove 9 is provided with a pressure strip 10. Both sides of the movable frame 3 are provided with grooves 11. The inner cavity of the grooves 11 is provided with limiting pins 12. One side of the preheating machine housing 1 is provided with a preheating mechanism 13. The other side of the preheating machine housing 1 is provided with a driving mechanism 15.

[0025] Furthermore, the movable frame 3 passes through the slots 2 at both ends of the preheater housing 1, and the two sides of the movable frame 3 are located in the inner cavity of the limiting slide groove 4 and are slidably connected. The driving pressure roller 7 is located on top of the roller 8.

[0026] Furthermore, the limiting pin 12 penetrates the groove 11 into the inner cavity of the pressure groove 9, and the limiting pin 12 penetrates into the inner cavity of the pressure strip 10.

[0027] Furthermore, the preheating mechanism 13 includes a heating seat 131 disposed on one side of the preheater housing 1. The heating seat 131 is hollow inside and is provided with a heating pipe 132. The inner cavity of the preheater housing 1 is symmetrically provided with heating plates 133.

[0028] Furthermore, the heating plate 133 is hollow inside and communicates with the inner cavity of the heating base 131. The two heating plates 133 are located at the top and bottom of the moving frame 3, respectively. The side of the heating plate 133 facing the moving frame 3 has an exhaust hole 134. A fan 135 is fixedly connected to the top of the preheater housing 1. A connecting pipe 136 is provided on one side of the fan 135. The connecting pipe 136 communicates with the heating base 131. When the corrugated paper passes through the preheater housing 1 and is transported, the fan 135 guides the air into the heating base 131 through the connecting pipe 136. The guided air is heated by the heating pipe 132 and then enters the heating plate 133. Finally, it is discharged from the exhaust hole 134 and blown onto the corrugated paper, thereby preheating and drying both sides of the corrugated paper at the same time, improving the preheating effect.

[0029] Furthermore, the drive mechanism 15 includes a drive sprocket 151 fixedly connected to the rotating shaft 14. The drive sprocket 151 is connected via a drive chain 152. A motor 153 is fixedly connected to one side of the preheater housing 1. The output shaft of the motor 153 is fixedly connected to the rotating shaft 14. The motor 153 can drive the rotating shaft 14 to rotate. Under the action of the drive sprocket 151 and the drive chain 152, the three drive pressure rollers 7 inside the preheater housing 1 can be driven to rotate simultaneously in the same direction. This improves the stability of the corrugated paper base paper conveying process and simultaneously flattens the corrugated paper base paper in multiple places, further improving the processing effect of this preheater for corrugated paper production.

[0030] Working principle: When using this preheating machine for corrugated paper production, the moving frame 3, which passes through the slot 2, is moved out of the preheating machine housing 1 through the cooperation of the limiting slide 4 and the rollers 6 at the bottom of the support leg 5. Then, the pressure strip 10 is removed, the end of the corrugated paper is placed into the pressure groove 9, and the pressure strip 10 is put back to press the end of the paper. Then, the pressure strip 10 is limited by the groove 11 and the limiting pin 12, and the moving frame 3 is pushed back to perform the preheating treatment of the corrugated paper. This solves the problem that existing preheating machines are difficult to quickly pass the corrugated paper through the machine for preheating. When one end of the corrugated paper is limited on the moving frame 3 and the moving frame 3 is reset, the corrugated paper can smoothly pass through the preheater housing 1. At this time, the corrugated paper is located between the drive pressure roller 7 and the roller 8 and is pressed. Then, the drive mechanism 15, in conjunction with the rotating shaft 14, drives the drive pressure roller 7 to rotate and transport the paper. With the help of the preheating mechanism 13, the paper can be preheated and dried from both sides at the same time. At the same time, the drive pressure roller 7 and the roller 8 flatten the corrugated paper, ensuring the preheating and drying effect of the preheater for corrugated paper production.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A preheating machine for corrugated paper production, comprising a preheating machine housing (1), characterized in that: Both ends of the preheater housing (1) are provided with slots (2). The inner cavity of the preheater housing (1) is provided with a movable frame (3). The inner wall of the preheater housing (1) is symmetrically provided with limit grooves (4). The bottom of the movable frame (3) is symmetrically and fixedly connected with support legs (5). The bottom of the support legs (5) is provided with rollers (6). The inner cavity of the preheater housing (1) is provided with a driving pressure roller (7). The driving pressure roller (7) is mounted on the preheater housing through a rotating shaft (14). In the inner cavity of (1), the inner cavity of the movable frame (3) is provided with rollers (8), the top of the movable frame (3) is provided with a pressure groove (9), the inner cavity of the pressure groove (9) is provided with a pressure strip (10), the two sides of the movable frame (3) are provided with grooves (11), the inner cavity of the groove (11) is provided with a limit pin (12), the preheating machine housing (1) is provided with a preheating mechanism (13) on one side, and the preheating machine housing (1) is provided with a driving mechanism (15) on the other side.

2. The preheating machine for corrugated paper production according to claim 1, characterized in that: The movable frame (3) passes through the slots (2) at both ends of the preheater housing (1). The two sides of the movable frame (3) are located in the inner cavity of the limiting slide groove (4) and the two are slidably connected. The driving pressure roller (7) is located at the top of the roller (8).

3. A preheating machine for corrugated paper production according to claim 1, characterized in that: The limiting pin (12) penetrates the groove (11) into the inner cavity of the pressure groove (9), and the limiting pin (12) penetrates into the inner cavity of the pressure strip (10).

4. A preheating machine for corrugated paper production according to claim 1, characterized in that: The preheating mechanism (13) includes a heating seat (131) disposed on one side of the preheater housing (1). The heating seat (131) is hollow inside and is provided with a heating tube (132). The inner cavity of the preheater housing (1) is symmetrically provided with heating plates (133).

5. A preheating machine for corrugated paper production according to claim 4, characterized in that: The heating plate (133) is hollow inside and communicates with the inner cavity of the heating seat (131). The two heating plates (133) are located at the top and bottom of the moving frame (3) respectively. The side of the heating plate (133) facing the moving frame (3) is provided with an exhaust hole (134). A fan (135) is fixedly connected to the top of the preheater housing (1). A connecting pipe (136) is provided on one side of the fan (135). The connecting pipe (136) communicates with the heating seat (131).

6. A preheating machine for corrugated paper production according to claim 1, characterized in that: The drive mechanism (15) includes a drive sprocket (151) fixedly connected to the rotating shaft (14). The drive sprocket (151) is connected by a drive chain (152). A motor (153) is fixedly connected to one side of the preheater housing (1). The output shaft of the motor (153) is fixedly connected to the rotating shaft (14).

Citation Information

Patent Citations

  • Preheater for corrugated paper production

    CN218410604U