A film laminating machine for carton production

Abstract

The utility model discloses a kind of film laminating machines for carton production, including paperboard film laminating machine and the cantilever support fixed in its discharge port side, paperboard blanking auxiliary structure is installed on the cantilever support.This structure includes by drive motor through worm and gear pair driving driving shaft, driving shaft is fixed with material receiving roller with hollow inside and being provided with annular reinforcing rib by connecting block and connecting shaft, wear-resistant resistance coating is covered on the outer wall of material receiving roller.The utility model sets up the auxiliary structure that can support and overturn unloading in film laminating machine discharge port, effectively prevent the bending and crease generated by paperboard due to self-weight sag after film laminating, ensure product flatness;Material receiving roller overturn unloading is driven using worm and gear transmission with self-locking function.

Description

Technical Field

[0001] This utility model relates to the technical field of cardboard box production equipment, specifically a laminating machine for cardboard box production. Background Technology

[0002] Cardboard boxes, as essential containers widely used in product packaging, transportation, and storage, have their production quality directly impacting packaging effectiveness and product protection. During cardboard box production, the surface of the cardboard is typically laminated to enhance its waterproof, moisture-proof, abrasion-resistant, and aesthetically pleasing properties. Cardboard laminating machines are key equipment for this process, completing the lamination by hot-pressing or bonding materials such as plastic film to the cardboard surface.

[0003] However, in existing technologies, when laminating large-sized or large-area cardboard, as the cardboard is gradually output from the laminating machine's outlet, the already laminated portion tends to sag or bend due to its own gravity, while the unlaminated portion remains in the processing stage. This bending phenomenon caused by its own weight can not only affect the stability and quality of the laminating process but also easily cause creases or deformations in the cardboard, thereby reducing the precision and quality of subsequent carton forming, folding, and gluing processes, and even leading to a decrease in the strength or appearance defects of the finished carton.

[0004] Therefore, we propose a laminating machine for cardboard box production. Utility Model Content

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a laminating machine for carton production. By utilizing a cardboard feeding auxiliary structure, it achieves automatic support and unloading of laminated cardboard, ensuring product flatness and effectively solving the problems in the background technology.

[0006] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: a laminating machine for carton production, comprising a cardboard laminating machine, wherein a cantilever support is fixedly installed on one side of the machine frame at the discharge port, and a cardboard feeding auxiliary structure is installed on the cantilever support. The cardboard feeding auxiliary structure includes a first support arm, a second support arm, a transmission box, a drive motor, a drive shaft, a connecting block, a receiving roller, a connecting shaft, a worm gear and a worm, and the receiving roller has a hollow internal structure, and annular reinforcing ribs are fixedly installed at equal intervals inside the receiving roller, and a wear-resistant and drag-reducing coating is provided on the outer wall of the receiving roller.

[0007] Preferably, the first support arm is fixed to one end of the inner wall of the cantilever bracket near the cardboard laminating machine, the second support arm is fixed to the other end of the inner wall of the cantilever bracket, the transmission box is fixed to the outer surface of the second support arm away from the cardboard laminating machine, and the drive motor is fixed to one side of the upper outer surface of the transmission box.

[0008] Preferably, the drive shaft is connected between the first support arm and the second support arm, and one end of the drive shaft extends into the interior of the transmission box. The connecting blocks are fixed at equal intervals on the outer wall of the drive shaft. The connecting shaft is fixed on the outer surface of the connecting block away from the cantilever bracket. The outer surface of the connecting shaft away from the connecting block is fixedly connected to the middle of the outer surface of the receiving roller.

[0009] Preferably, a sealed bearing is provided between the drive shaft and the first support arm, the second support arm, and the transmission box, and the drive shaft is rotatably connected to the first support arm, the second support arm, and the transmission box through the sealed bearing.

[0010] Preferably, both the worm and the worm wheel are located inside the transmission box. The worm wheel is fixed to the outer wall of one end of the drive shaft, and the worm is located on one side of the outer surface of the worm wheel. A sealed bearing is provided between the worm and the transmission box, and the worm is rotatably connected to the transmission box through the sealed bearing. A coupling is provided between the worm and the drive motor, and the upper outer surface of the worm is fixedly connected to the lower outer surface of the output shaft of the drive motor through the coupling. One side of the outer surface of the worm meshes with one side of the outer surface of the worm wheel, and the lead angle of the worm is less than or equal to the equivalent friction angle when it meshes with the worm wheel.

[0011] Preferably, the wear-resistant and drag-reducing coating is a polytetrafluoroethylene coating, and the thickness of the wear-resistant and drag-reducing coating is 0.2 mm to 0.5 mm.

[0012] (III) Beneficial Effects Compared with the prior art, this utility model provides a laminating machine for carton production, which has the following beneficial effects: 1. This type of laminating machine for carton production features a cardboard feeding auxiliary structure on one side of the machine's discharge port. The receiving roller on this structure supports the laminated cardboard portion during the discharge process, effectively counteracting the sagging tendency caused by the cardboard's own weight. This prevents the cardboard from bending or creased during discharge, ensuring the flatness of the laminated cardboard and laying a solid foundation for subsequent precise folding and forming processes, thus improving the quality of the final carton product.

[0013] 2. This type of laminating machine for carton production, through the transmission combination of a drive motor, worm gear and worm, can drive the receiving roller to perform a controllable flipping action, which can flip and tilt to smoothly unload the supported cardboard to the designated position or conveyor line. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of a laminating machine for cardboard box production according to this utility model.

[0015] Figure 2 This is a schematic diagram of the auxiliary structure for feeding cardboard in a laminating machine for carton production according to this utility model.

[0016] Figure 3 This is a front cross-sectional view of the transmission box in a laminating machine for carton production according to this utility model.

[0017] Figure 4 This is a front cross-sectional view of the receiving roller in a laminating machine for carton production according to this utility model.

[0018] In the diagram: 1. Cardboard laminating machine; 2. Cardboard feeding auxiliary structure; 3. Cantilever bracket; 4. First support arm; 5. Second support arm; 6. Transmission box; 7. Drive motor; 8. Drive shaft; 9. Connecting block; 10. Receiving roller; 11. Wear-resistant and drag-reducing coating; 12. Annular reinforcing rib; 13. Connecting shaft; 14. Worm gear; 15. Worm. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] like Figure 1-4 As shown, this utility model provides a laminating machine for carton production, including a cardboard laminating machine 1. The frame of the cardboard laminating machine 1 is mounted on one side of the discharge port with a cantilever bracket 3 fixed by bolts. A cardboard feeding auxiliary structure 2 is mounted on the cantilever bracket 3.

[0021] The cardboard feeding auxiliary structure 2 includes a first support arm 4, a second support arm 5, a transmission box 6, a drive motor 7, a drive shaft 8, a connecting block 9, a receiving roller 10, a connecting shaft 13, a worm gear 14, and a worm 15. The first support arm 4 is welded to one end of the inner wall of the cantilever bracket 3 near the outlet of the cardboard laminating machine 1, and the second support arm 5 is similarly welded to the other end of the inner wall of the cantilever bracket 3. The transmission box 6 is fixed to the outer surface of the second support arm 5 on the side away from the cardboard laminating machine 1, and the drive motor 7 is fixed to one side of the upper outer surface of the transmission box 6.

[0022] The drive shaft 8 is rotatably connected between the first support arm 4 and the second support arm 5 via a sealed bearing, and one end of the drive shaft 8 extends into the interior of the transmission box 6. Connecting blocks 9 are fixed at equal intervals to the outer wall of the drive shaft 8. One end of the connecting shaft 13 is fixed to the outer surface of the connecting block 9 on the side away from the cantilever bracket 3, and the outer surface of the connecting shaft 13 on the side away from the connecting block 9 is fixedly connected to the middle of the outer surface of the receiving roller 10, so that the receiving roller 10 can rotate synchronously with the rotation of the drive shaft 8.

[0023] Both the worm 15 and the worm wheel 14 are housed inside the transmission housing 6. The worm wheel 14 is fixed to the outer wall of the end of the drive shaft 8 that extends into the transmission housing 6. The worm 15 is rotatably connected to the transmission housing 6 via a sealed bearing and is located on one side of the worm wheel 14. The upper outer surface of the worm 15 is fixedly connected to the lower outer surface of the output shaft of the drive motor 7 via a coupling. One outer surface of the worm 15 meshes with one outer surface of the worm wheel 14, forming a worm gear transmission pair. To ensure the self-locking property of the transmission and prevent the receiving roller 10 from accidentally reversing under load, the lead angle of the worm 15 is designed to be less than or equal to its equivalent friction angle when meshing with the worm wheel 14.

[0024] The receiving roller 10 has a hollow interior to reduce overall weight. To ensure structural strength, annular reinforcing ribs 12 are fixedly installed at equal intervals inside the receiving roller 10. To reduce frictional resistance between the cardboard and the outer wall of the receiving roller 10 and prevent scratches on the coated surface, a wear-resistant and friction-reducing coating 11 is provided on the outer wall of the receiving roller 10. In this embodiment, the wear-resistant and friction-reducing coating 11 is preferably a polytetrafluoroethylene (PTFE) coating with a thickness controlled between 0.2 mm and 0.5 mm. This coating combines excellent wear resistance and an extremely low coefficient of friction.

[0025] The working principle of this utility model is as follows: During the paperboard lamination process, the laminated paperboard is output from the discharge port of the paperboard laminating machine 1. Initially, the receiving roller 10 of the paperboard feeding auxiliary structure 2 is in a horizontal supporting position (e.g., ...). Figure 1 (As shown). The front end and the laminated portion of the output cardboard are horizontally supported on the receiving roller 10. The wear-resistant and friction-reducing coating 11 provides a low-friction contact surface, which effectively counteracts the sagging tendency of the cardboard due to its own weight, avoids bending or creases in the cardboard, and ensures the flatness of the cardboard after lamination.

[0026] Once a single sheet of cardboard is fully laminated and conveyed onto the receiving roller 10, the drive motor 7 is activated. The drive motor 7 drives the worm gear 15 to rotate via a coupling. The worm gear 15 drives the meshing worm wheel 14 to rotate, which in turn drives the drive shaft 8 to rotate. The drive shaft 8, through the connecting block 9 and the connecting shaft 13, ultimately rotates the receiving roller 10 around its axis by a certain angle, thus smoothly unloading the supported cardboard onto the collection platform, conveyor belt, or stacking device below. After unloading, the drive motor 7 reverses, causing the receiving roller 10 to return to its horizontal supporting position, ready for the next receiving operation.

[0027] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A laminating machine for carton production, comprising a cardboard laminating machine (1), characterized in that: The cardboard laminating machine (1) has a cantilever bracket (3) fixedly installed on one side of the outlet of the frame. The cardboard feeding auxiliary structure (2) is installed on the cantilever bracket (3). The cardboard feeding auxiliary structure (2) includes a first support arm (4), a second support arm (5), a transmission box (6), a drive motor (7), a drive shaft (8), a connecting block (9), a receiving roller (10), a connecting shaft (13), a worm gear (14), and a worm (15). The receiving roller (10) has a hollow structure inside. The receiving roller (10) has annular reinforcing ribs (12) fixedly installed at equal intervals inside. The outer wall of the receiving roller (10) is provided with a wear-resistant and drag-reducing coating (11).

2. The laminating machine for cardboard box production according to claim 1, characterized in that: The first support arm (4) is fixed to one end of the inner wall of the cantilever bracket (3) near the cardboard laminating machine (1), the second support arm (5) is fixed to the other end of the inner wall of the cantilever bracket (3), the transmission box (6) is fixed to the outer surface of the second support arm (5) away from the cardboard laminating machine (1), and the drive motor (7) is fixed to one side of the upper outer surface of the transmission box (6).

3. A laminating machine for cardboard box production according to claim 2, characterized in that: The drive shaft (8) is connected between the first support arm (4) and the second support arm (5), and one end of the drive shaft (8) extends into the interior of the transmission box (6). The connecting blocks (9) are fixed at equal intervals on the outer wall of the drive shaft (8). The connecting shaft (13) is fixed on the outer surface of the connecting block (9) away from the cantilever bracket (3). The outer surface of the connecting shaft (13) away from the connecting block (9) is fixedly connected to the middle of the outer surface of the receiving roller (10).

4. A laminating machine for cardboard box production according to claim 3, characterized in that: Sealed bearings are provided between the drive shaft (8) and the first support arm (4), the second support arm (5), and the transmission box (6). The drive shaft (8) is rotatably connected to the first support arm (4), the second support arm (5), and the transmission box (6) through the sealed bearings.

5. A laminating machine for cardboard box production according to claim 4, characterized in that: The worm (15) and worm wheel (14) are both located inside the transmission box (6). The worm wheel (14) is fixed to the outer wall of one end of the drive shaft (8). The worm (15) is located on one side of the outer surface of the worm wheel (14). A sealed bearing is provided between the worm (15) and the transmission box (6). The worm (15) is rotatably connected to the transmission box (6) through the sealed bearing. A coupling is provided between the worm (15) and the drive motor (7). The upper outer surface of the worm (15) is fixedly connected to the lower outer surface of the output shaft in the drive motor (7) through the coupling. One side of the outer surface of the worm (15) meshes with one side of the outer surface of the worm wheel (14). The lead angle of the worm (15) is less than or equal to the equivalent friction angle when it meshes with the worm wheel (14).

6. A laminating machine for cardboard box production according to claim 5, characterized in that: The wear-resistant and drag-reducing coating (11) is a polytetrafluoroethylene coating, and the thickness of the wear-resistant and drag-reducing coating (11) is 0.2 mm to 0.5 mm.

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