Double-station hot-press forming machine for paper-plastic composite bags

By designing a dual-station hot press forming machine, using guide rollers, hot press rollers, partitions, and pressing components, the machine enables the simultaneous processing of paper-plastic composite bags of different styles and sizes, solving the problems of bulky equipment and large footprint, and improving production efficiency and adaptability.

CN224375035UActive Publication Date: 2026-06-19安徽众之锐包装制品有限公司

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
安徽众之锐包装制品有限公司
Filing Date
2025-07-02
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing paper-plastic composite bag thermoforming equipment has a single-station structure, resulting in bulky equipment, large footprint, and difficulty in processing different styles and sizes of paper-plastic composite bags simultaneously, thus increasing production costs.

Method used

Design a dual-station hot press forming machine, which adopts a guide roller and hot press roller structure, combined with partition, pressing component and servo motor, to realize the synchronous processing of two sets of paper-plastic composite bags of different styles and sizes. The height of the pressing roller is adjusted by electric push rod and the synchronous belt drive mechanism of servo motor ensures processing stability and adaptability.

Benefits of technology

It improves production efficiency and equipment flexibility, reduces equipment footprint, and enables the simultaneous processing of paper-plastic composite bags of different styles and thicknesses, thereby reducing production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of paper-plastic composite bag double-station hot press forming machine, belong to hot press forming machine technical field, including hot press, the inside rotation of hot press is provided with several guide rollers, the inside rotation of hot press is also provided with hot press roller;Partition, the partition is set in the outside of guide roller, and partition is used for the auxiliary location of double-station composite bag;Compression assembly, the compression assembly includes positioning frame, and the positioning frame is fixedly connected at the top of hot press, the upper surface of positioning frame is fixedly connected with electric push rod, and the jacking end of electric push rod is connected with support plate and is penetrated to the below of positioning frame. Through the setting of double-station structure, so that the device can simultaneously match two groups of different styles small size paper-plastic composite bag to carry out processing production, and then improve the production efficiency of the device, reduce equipment investment, i.
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Description

Technical Field

[0001] This utility model relates to the field of hot press forming machine technology, specifically a dual-station hot press forming machine for paper-plastic composite bags. Background Technology

[0002] Paper-plastic composite bags are made of plastic and kraft paper. The plastic layer is usually made of flat woven fabric with polypropylene or polyethylene as the base material, while the kraft paper is made of refined composite special kraft paper. It has the characteristics of high strength, good water resistance and beautiful appearance. It is one of the most popular packaging materials and is widely used in plastic raw materials, cement, feed, chemical, fertilizer and other industries. The plastic and kraft paper are mainly formed by hot pressing with hot rollers.

[0003] Existing hot press rollers for thermoforming paper-plastic composite bags mainly adopt a customized structure, adapted to the width of the paper-plastic composite bags being processed. They are usually single-station structures, working in conjunction with pressure rollers to complete the thermoforming of the paper-plastic composite bags. However, some paper-plastic composite bags are small in size. If a single-station design is adopted, the roller body width is narrow, making the external connecting frame and other drive components appear bulky. At the same time, if two different styles of paper-plastic composite bags are produced and processed simultaneously, two production lines need to be prepared, resulting in a large equipment footprint. A large area is required to achieve simultaneous processing of two or more production lines, increasing production costs.

[0004] Therefore, this utility model provides a dual-station hot pressing molding machine for paper-plastic composite bags to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides a dual-station hot press forming machine for paper-plastic composite bags, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a dual-station hot press forming machine for paper-plastic composite bags, including a hot press, wherein a plurality of guide rollers are rotatably arranged inside the hot press, and a hot press roller is also rotatably arranged inside the hot press;

[0009] A partition is sleeved outside the guide roller and is used for auxiliary positioning of the dual-station composite bag;

[0010] A pressing assembly includes a positioning frame, which is fixedly connected to the top of the hot press. An electric push rod is fixedly connected to the upper surface of the positioning frame. The lifting end of the electric push rod extends through to the bottom of the positioning frame and is connected to a support plate. Connecting parts are fixedly connected to both ends of the bottom of the support plate, and a pressing roller is rotatably arranged between the connecting parts. The pressing roller is used for auxiliary pressing above the hot press roller.

[0011] As a preferred technical solution of this application, the partition is provided in two sets, and each set of the partition has two partitions. The outer wall of each partition is fixedly connected with a guide sleeve, and the guide sleeve has a guide shaft passing through it. The guide shaft is fixedly connected between the hot presses.

[0012] As a preferred technical solution of this application, the guide sleeve has a threaded hole on its outside, and a hand-tightening bolt is threaded inside the threaded hole, the hand-tightening bolt abutting against the outer wall of the guide shaft.

[0013] As a preferred technical solution of this application, the pressing rollers are provided in two sets, and the height of the two sets of pressing rollers can be adjusted independently by an electric push rod. The axis of the pressing rollers and the axis of the hot pressing rollers are on the same horizontal plane.

[0014] As a preferred technical solution of this application, two guide rods are fixedly connected to the upper surface of each support plate, and the guide rods slide through to the top of the positioning frame. The cross-section of the connector is L-shaped, and the two ends of the pressure roller are rotatably connected to the connector through ball bearings.

[0015] As a preferred technical solution of this application, a set of servo motors is fixedly connected to the upper surface of each support plate, the output end of the servo motor is connected to a synchronous belt drive mechanism, and the other end of the synchronous belt drive mechanism is connected to the end shaft of the pressure roller.

[0016] As a preferred technical solution of this application, the synchronous belt drive mechanism includes a synchronous belt and two synchronous pulleys, and the two synchronous pulleys are respectively fixedly connected to the outer wall of the shaft at the output end of the servo motor and the end of the pressure roller. The synchronous pulleys and the synchronous belt are meshed and connected in a transmission manner.

[0017] (III) Beneficial Effects

[0018] The beneficial effects of this application are as follows:

[0019] 1. This utility model, through the setting of a dual-station structure, enables the device to simultaneously process two sets of small-sized paper-plastic composite bags of different styles, thereby improving the production efficiency of the device, reducing equipment investment, and realizing the synchronous processing of multiple sets of different styles, thus improving its processing flexibility and adaptability.

[0020] 2. This utility model enables the individual control of the pressing rollers on the two sets of workstations, allowing for individual adjustment of the pressing depth. This allows the device to achieve dual-workstation processing, enabling the processing of paper-plastic composite bags with different decorative styles and thicknesses, thereby further improving its adaptability and flexibility.

[0021] 3. This utility model, through the setting of partitions, can divide the guide rollers into areas, so that they can effectively cooperate with the two paper-plastic composite bags for conveying. At the same time, it plays a good guiding and limiting role in the conveying, avoiding the conveying deviation caused by defects on the roller surface during the conveying process. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0023] Figure 2 For the present utility model Figure 1 A magnified structural diagram of A in the middle;

[0024] Figure 3 This is a schematic diagram of a partial explosion of the clamping component of this utility model;

[0025] Figure 4 For the present utility model Figure 3 A magnified structural diagram of B in the diagram;

[0026] Figure 5 This is a frontal planar structural diagram of the present invention.

[0027] In the picture:

[0028] 1. Hot press; 11. Guide roller; 12. Hot press roller; 2. Partition plate; 21. Guide sleeve; 22. Hand-tightening bolt; 23. Guide shaft; 3. Pressing assembly; 31. Positioning frame; 32. Electric push rod; 33. Support plate; 34. Connecting piece; 35. Pressing roller; 36. Guide rod; 37. Servo motor; 38. Synchronous belt drive mechanism. Detailed Implementation

[0029] 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.

[0030] like Figure 1-5As shown, this utility model provides a dual-station hot press forming machine for paper-plastic composite bags, including a hot press 1, with several guide rollers 11 rotatably arranged inside the hot press 1, and a hot press roller 12 rotatably arranged inside the hot press 1; a partition 2, which is sleeved on the outside of the guide rollers 11 and is used for auxiliary positioning of the dual-station composite bag; and a pressing assembly 3, which includes a positioning frame 31, which is fixedly connected to the top of the hot press 1, and an electric push rod 32 is fixedly connected to the upper surface of the positioning frame 31. The lifting end of the electric push rod 32 extends through to the bottom of the positioning frame 31 and is connected to a support plate 33. The bottom ends of the support plate 33 are connected to the support plate 33. A connector 34 is fixedly connected, and a pressure roller 35 is rotatably arranged between the connectors 34. The pressure roller 35 is used for auxiliary pressing above the hot press roller 12. With the arrangement of two sets of pressure rollers 35, the device can simultaneously perform hot pressing of two small-sized paper-plastic composite bags, thereby improving the flexibility of the device. The height of the pressure roller 35 can be flexibly controlled by the pull of the electric push rod 32. It can not only adjust the pressing force of the paper-plastic composite bag, but also adapt to the pressing of paper-plastic composite bags of different thicknesses. Thus, the device can achieve dual-station operation and greatly improve its processing adaptability.

[0031] Furthermore, there are two sets of partitions 2, and each set of partitions 2 has two partitions. Each partition 2 has a guide sleeve 21 fixedly connected to its outer wall, and a guide shaft 23 passes through the inside of the guide sleeve 21. The guide shaft 23 is fixedly connected between the hot press 1. The guide sleeve 21 has a threaded hole on its outside, and a hand-tightening bolt 22 is threaded inside the threaded hole. The hand-tightening bolt 22 abuts against the outer wall of the guide shaft 23. By setting up two sets of partitions 2, the two paper-plastic composite bags can be auxiliaryly limited to ensure their conveying stability and avoid deviation during the conveying process. The sliding structure can effectively adapt to the width of the paper-plastic composite bag.

[0032] Furthermore, there are two sets of pressure rollers 35, and the height of the two sets of pressure rollers 35 can be adjusted independently by electric push rod 32. The axis of the pressure roller 35 is on the same horizontal plane as the axis of the hot press roller 12. By pressing the auxiliary pressure above the hot press roller 12 with the pressure roller 35, the paper-plastic composite bag conveyed between the two can be hot-pressed. The high temperature and high pressure of the hot press roller 12 melts the plastic particles and hot-presses the kraft paper and plastic woven fabric together.

[0033] Furthermore, two guide rods 36 are fixedly connected to the upper surface of each support plate 33, and the guide rods 36 slide through to the top of the positioning frame 31. The cross-section of the connecting piece 34 is L-shaped, and the two ends of the pressure roller 35 are rotatably connected to the connecting piece 34 through ball bearings. A set of servo motors 37 are fixedly connected to the upper surface of each support plate 33. The output end of the servo motor 37 is connected to a synchronous belt drive mechanism 38, and the other end of the synchronous belt drive mechanism 38 is connected to the end shaft of the pressure roller 35. The synchronous belt drive mechanism 38 includes a synchronous belt. The system includes two synchronous pulleys, which are fixedly connected to the output end of the servo motor 37 and the outer wall of the shaft at the end of the pressing roller 35, respectively. The synchronous pulleys and the synchronous belt are meshed and connected. Through the servo motor 37 and the synchronous belt transmission mechanism 38, the pressing roller 35 can be further driven to rotate, so that the pressing roller 35 rotates synchronously with the rotation of the hot pressing roller 12. At the same time, the rotation speed of the two rollers is the same, which ensures the stability of the hot pressing of the paper-plastic composite bag and avoids the deviation between the rotation speed of the pressing roller 35 and the rotation speed of the hot pressing roller 12, which could lead to delamination.

[0034] Working principle: First, two different paper-plastic composite bags are guided between the hot press roller 12 and the pressing roller 35. The high temperature of the hot press roller 12 melts the plastic layer inside the paper-plastic composite bag. At the same time, the pressing roller 35 presses the plastic layer and the kraft paper together, thus realizing the hot pressing of the paper-plastic composite bag. The pressing height of the two sets of pressing rollers 35 can be adjusted independently, so that when the device processes two paper-plastic composite bags, the height of the pressing rollers 35 can be adjusted according to their thickness specifications.

[0035] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A dual-station hot-press forming machine for paper-plastic composite bags, characterized in that: Includes a hot press (1), wherein a plurality of guide rollers (11) are rotatably arranged inside the hot press (1), and a hot press roller (12) is also rotatably arranged inside the hot press (1); Partition (2), which is sleeved on the outside of the guide roller (11), and the partition (2) is used for auxiliary positioning of the double-station composite bag; The pressing assembly (3) includes a positioning frame (31), which is fixedly connected to the top of the hot press (1). An electric push rod (32) is fixedly connected to the upper surface of the positioning frame (31). The lifting end of the electric push rod (32) extends through to the bottom of the positioning frame (31) and is connected to a support plate (33). Connecting parts (34) are fixedly connected to the bottom two ends of the support plate (33), and a pressing roller (35) is rotatably arranged between the connecting parts (34). The pressing roller (35) is used for auxiliary pressing above the hot press roller (12).

2. The paper-plastic composite bag dual-station hot pressing molding machine according to claim 1, characterized in that: There are two sets of partitions (2), and each set of partitions (2) has two partitions. Each partition (2) has a guide sleeve (21) fixedly connected to its outer wall, and a guide shaft (23) passes through the inside of the guide sleeve (21). The guide shaft (23) is fixedly connected between the hot press (1).

3. The paper-plastic composite bag dual-station hot pressing molding machine according to claim 2, characterized in that: The guide sleeve (21) has a threaded hole on its outside, and a hand-tightening bolt (22) is threaded inside the threaded hole. The hand-tightening bolt (22) abuts against the outer wall of the guide shaft (23).

4. The paper-plastic composite bag dual-station hot pressing molding machine according to claim 3, characterized in that: There are two sets of the pressing rollers (35), and the height of the two sets of pressing rollers (35) can be adjusted separately by electric push rod (32). The axis of the pressing rollers (35) is on the same horizontal plane as the axis of the hot pressing roller (12).

5. The paper-plastic composite bag dual-station hot pressing molding machine according to claim 1, characterized in that: Two guide rods (36) are fixedly connected to the upper surface of each support plate (33), and the guide rods (36) slide through to the top of the positioning frame (31). The cross-section of the connector (34) is L-shaped, and the two ends of the pressure roller (35) are rotatably connected to the connector (34) through ball bearings.

6. The paper-plastic composite bag dual-station hot pressing molding machine according to claim 5, characterized in that: Each of the support plates (33) has a set of servo motors (37) fixedly connected to its upper surface. The output end of the servo motor (37) is connected to a synchronous belt drive mechanism (38), and the other end of the synchronous belt drive mechanism (38) is connected to the end shaft of the pressure roller (35).

7. A dual-station hot press forming machine for paper-plastic composite bags according to claim 6, characterized in that: The synchronous belt drive mechanism (38) includes a synchronous belt and two synchronous pulleys, and the two synchronous pulleys are respectively fixedly connected to the outer wall of the shaft at the output end of the servo motor (37) and the end of the pressure roller (35). The synchronous pulleys and the synchronous belt are meshed and connected.