A large roll hot melt adhesive laminator

Abstract

This utility model discloses a large roller-type hot melt adhesive laminating machine, including an equipment box, a base plate located on the lower front side of the equipment box, and side plates located at the front and rear ends of the upper side of the base plate. Unwinding rollers and coating rollers are respectively installed at the upper and lower right ends of the two side plates. Tension rollers are installed at multiple locations on the inner sides of the two side plates. A take-up roller is installed on the upper left side of the base plate. The outer side of the take-up roller drives the resonant roll. The resonant roll is driven by the meshing of the teeth on the drive roller with the drive teeth on the inner side of the undulating ring, causing the undulating ring to reciprocate up and down. This movement periodically lifts and releases the raw material roll, preventing jamming or uneven feeding during the process. It ensures that the raw material enters the laminating process at a stable speed and tension, helping to improve the quality stability of the laminated product and reduce laminating defects caused by uneven feeding, such as inconsistent thickness and air bubbles.

Description

Technical Field

[0001] This utility model relates to the field of hot melt adhesive laminating machines, and in particular to a large roller type hot melt adhesive laminating machine. Background Technology

[0002] Large-roller hot melt adhesive laminating machines are high-efficiency industrial equipment primarily used in lamination processes in industries such as textiles, automotive interiors, and filter materials. Their core component is a large-diameter heated roller that melts the hot melt adhesive through a precise temperature control system, achieving seamless bonding of multiple layers of materials under high pressure. Compared to traditional equipment, the large-roller design significantly improves production speed and lamination uniformity, making it particularly suitable for wide-width materials.

[0003] In existing large-roller hot melt adhesive laminating machine technology, tension adjustment during raw material conveying relies heavily on traditional and fixed mechanical structures or simple tension control devices. For example, some equipment adjusts tension solely through fixed counterweights or spring devices. This method cannot adapt to the dynamic changes of raw materials during the lamination process in real time and with precision. When there are differences in the material composition of the raw materials, or when factors such as wear occur during long-term continuous production, tension instability is highly likely to occur. Utility Model Content

[0004] The main purpose of this invention is to propose a large roller hot melt adhesive laminating machine, which aims to solve the problem that in the existing large roller hot melt adhesive laminating machine technology, the tension adjustment of raw materials during the conveying process mostly relies on relatively traditional and fixed mechanical structures or simple tension control devices. This method cannot adapt to the dynamic changes of raw materials in the laminating process in real time and accurately.

[0005] To solve the above problems, this utility model proposes a large roller hot melt adhesive laminating machine, including an equipment box and a bottom plate disposed on the lower front side of the equipment box, and side plates disposed on the upper front and rear ends of the bottom plate;

[0006] The upper and lower ends of the right side of the two side plates are respectively provided with unwinding rollers and gluing rollers;

[0007] Tension rollers are provided at multiple locations on the inner sides of the two side plates, a take-up roller is provided on the upper left side of the bottom plate, and a composite roll is provided on the outer side of the take-up roller for drive winding.

[0008] A heating roller is provided in the middle of the side plate, and multiple observation windows are provided on the inner side of the side plate.

[0009] The equipment box is powered by an external power source.

[0010] A mounting plate is provided on the outer side of the right middle of the front side plate. A drive motor is provided on the outer side of the mounting plate. A transmission shaft is provided on the rear side of the drive motor. A drive roller is connected to the rear end of the transmission shaft. Multiple teeth are provided on the outer side of one side of the drive roller. A wave ring is provided on the outer side of the drive roller. Drive teeth are provided on the inner walls of the left and right ends of the inner side of the wave ring.

[0011] Limiting plates are respectively provided at the left and right ends of the outer side of the wave ring.

[0012] In one embodiment, a control box is provided on the outside of the drive motor, and the drive motor is powered by connecting to the equipment box. A control panel is provided on the left front side of the equipment box. The drive roller and the rear side plate are movably connected, and the front end of the drive roller is bolted to the transmission shaft.

[0013] In one embodiment, the drive roller is connected to the inner drive teeth of the wave ring by meshing teeth, and the drive roller can rotate under the drive of the transmission shaft.

[0014] In one embodiment, the limiting plate is connected to the two side plates by bolts, and the inner side of the limiting plate is tightly fitted to the wave ring.

[0015] In one embodiment, the wave ring is formed by splicing a semi-circular structure at the upper and lower ends and a rectangular structure connected between the two semi-circular structures, and the inside is a hollow structure, with the driving teeth fixedly disposed on the inner wall of the rectangle.

[0016] In one embodiment, a raw material roll is disposed on the outer side of the unwinding roller, and a hot melt adhesive roll is disposed on the outer side of the coating roller.

[0017] In one embodiment, the wave ring can move upward or downward under the meshing rotation of the drive roller drive teeth and the clamping teeth. When the wave ring moves upward, it can lift the upper raw material roll.

[0018] In one embodiment, the heating roller is equipped with a heating resistance wire, which is connected to a heating device inside the equipment box for heating, and the coating roll passes through the heating roller.

[0019] In one embodiment, the coating roll and the raw material roll are combined on a plurality of tension rollers on the left side, and after being combined on the plurality of tension rollers, the coating roll and the raw material roll are wound up on the take-up roller.

[0020] In one embodiment, the equipment housing is provided with multiple drive motors, and the output shafts of the multiple drive motors drive and connect multiple tension rollers in the two side plates.

[0021] Beneficial effects: This utility model provides a large roller-type hot melt adhesive laminating machine, which has the following beneficial effects:

[0022] 1. The drive roller's teeth mesh with the drive teeth on the inner side of the wavering ring, causing the wavering ring to reciprocate up and down. This motion periodically lifts and releases the raw material roll, preventing jamming or uneven feeding during the process. This ensures that the raw material enters the lamination process at a stable speed and tension, improving the quality stability of the laminated product and reducing defects caused by uneven feeding, such as inconsistent thickness and air bubbles.

[0023] 2. During the lamination process, raw material rolls may experience localized accumulation or loosening due to various reasons (such as tension changes, speed fluctuations, etc.). The up-and-down movement of the oscillating ring can adjust the raw material rolls in a timely manner. When the raw material rolls tend to accumulate, the lifting action of the oscillating ring will apply an upward force to the material, thereby preventing further accumulation. When the material becomes loose, the lowering action of the oscillating ring can promptly apply a certain tension to the material, keeping it taut. This effectively prevents material accumulation and loosening, improves material utilization, and reduces costs increased due to material waste.

[0024] 3. The movement of the wave ring can provide a buffering effect to some extent. During the operation of the laminating machine, factors such as equipment vibration and motor start-up and shutdown may impact the raw material roll. The wave ring, through its up-and-down movement, can absorb and mitigate this impact energy, reducing the direct force on the raw material roll, lowering the risk of damage due to impact, and extending the service life of the raw material. It also helps protect other components of the laminating machine, preventing wear or failure caused by sudden changes in the stress on the raw material. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0026] Figure 1 This is a schematic diagram of the structure of the device in this utility model.

[0027] Figure 2 In this utility model Figure 1 A diagram showing the view from the front.

[0028] Figure 3 This is a structural schematic diagram of the device from a rear half-section perspective in this utility model.

[0029] Figure 4This is a schematic diagram of the structure of the drive motor, drive roller, and wave ring in this utility model.

[0030] Figure 5 In this utility model Figure 4 A structural diagram from a side view.

[0031] Figure 6 In this utility model Figure 5 A magnified structural diagram of the inner circular region.

[0032] Figure 7 In this utility model Figure 3 A magnified structural diagram of the inner circular region.

[0033] Figure 8 In this utility model Figure 4 A structural diagram from the left side.

[0034] The annotations in the attached figures are explained as follows:

[0035] 1. Equipment box; 2. Control panel; 3. Base plate; 4. Take-up roll; 5. Side plate; 6. Observation window; 7. Composite roll; 8. Tension roll; 9. Unwind roll; 10. Drive motor; 11. Glue roller; 12. Heating roll; 13. Mounting plate; 14. Drive shaft; 15. Wavering ring; 16. Limit plate; 17. Clamping teeth; 18. Drive roll; 19. Control box; 20. Drive teeth. Detailed Implementation

[0036] 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.

[0037] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0038] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0040] This utility model provides, for example Figures 1-8 The large roller hot melt adhesive laminating machine shown includes an equipment box 1, a base plate 3 disposed on the lower front side of the equipment box 1, and side plates 5 disposed on the front and rear ends of the upper side of the base plate 3.

[0041] The upper and lower ends of the right side of the two side plates 5 are respectively provided with unwinding rollers 9 and gluing rollers 11;

[0042] Optionally, high-precision bearing housings are installed at both ends of the unwinding roller 9 and the coating roller 11. These housings are equipped with deep groove ball bearings, capable of withstanding large radial loads, ensuring smooth operation of the rollers during high-speed rotation and reducing vibration and noise. Simultaneously, keyways are designed at the shaft ends of the unwinding roller 9 and the coating roller 11, allowing for reliable power transmission via a flat key to the motor's output shaft or transmission device, ensuring uniform speed during the unwinding and coating processes.

[0043] Tension rollers 8 are installed at multiple locations on the inner side of the two side plates 5, and a take-up roller 4 is installed on the upper left side of the bottom plate 3. A composite roll 7 is installed on the outer side of the take-up roller 4 for drive winding.

[0044] A heating roller 12 is provided in the middle of the side plate 5, and multiple observation windows 6 are provided on the inner side of the side plate 5. The equipment box 1 is powered by connecting to an external power source.

[0045] A mounting plate 13 is provided on the outer side of the middle right side of the front side plate 5. A drive motor 10 is provided on the outer side of the mounting plate 13. A transmission shaft 14 is provided on the rear side of the drive motor 10. A drive roller 18 is connected to the rear end of the transmission shaft 14. Multiple teeth 17 are provided on the outer side of one side of the drive roller 18. A wave ring 15 is provided on the outer side of the drive roller 18. Drive teeth 20 are provided on the inner walls of the left and right ends of the inner side of the wave ring 15.

[0046] Limiting plates 16 are respectively provided at the left and right ends of the outer side of the undulating ring 15. Heating resistance wires are provided inside the heating roller 12 and are connected to the heating equipment in the equipment box 1 for heating.

[0047] Optionally, the internal heating resistance wire of the heating roller 12 is made of a special nickel-chromium alloy material, which has high resistivity and good high temperature resistance, and can generate stable heat during long-term operation.

[0048] The coating roll passes through the heating roller 12. The coating roll and the raw material roll are combined on multiple tension rollers 8 on the left side. After being combined on multiple tension rollers 8, the coating roll and the raw material roll are wound up on the take-up roller 4. Multiple drive motors are installed inside the equipment box 1, and the output shafts of the multiple drive motors drive and connect multiple tension rollers 8 in the two side plates 5. A control box 19 is installed outside the drive motor 10, and the drive motor 10 is powered by connecting to the equipment box 1. A control panel 2 is installed on the left front side of the equipment box 1. The drive roller 18 and the rear side plate 5 are movably connected, and the front end of the drive roller 18 is bolted to the drive shaft 14.

[0049] The unwinding roller 9 and the coating roller 11 release the raw material roll and the hot melt adhesive roll respectively. Under the action of multiple tension rollers 8, the tension is kept stable during the material conveying process to ensure smooth material transmission. The heating roller 12 has an internal heating resistance wire connected to the heating equipment in the equipment box 1 to heat the passing hot melt adhesive roll, so that the hot melt adhesive changes from a solid state to a liquid state with good fluidity and viscosity.

[0050] During the merging process, the liquid hot melt adhesive is heated by the heating roller 12 and then tensioned by the tension roller 8 to coat the raw material. The two materials are then merged under the guidance of the tension roller 8, and the adhesive properties of the hot melt adhesive are used to bond the raw material to the coated roll. The take-up roller 4 rotates to wind the composite material into a composite roll 7.

[0051] The drive motor 10 provides power to the drive roller 18 through the transmission shaft 14. The drive roller 18 meshes with the wave ring 15 to move the wave ring 15, which can adjust the position of the raw material roll to meet different composite requirements. The drive motor in the equipment box 1 provides power to the tension roller 8 to ensure material conveying.

[0052] In this embodiment, the user first connects an external power source to ensure that the equipment box 1 is powered normally; then, the user installs the raw material roll on the unwinding roller 9 and the hot melt adhesive roll on the coating roller 11. Then, through the control panel 2 on the left front side of the equipment box 1, the user sets the heating temperature and other parameters of the heating roller 12 according to the characteristics of the hot melt adhesive and the composite requirements.

[0053] At this time, the user can start the equipment normally. The transmission motor inside the equipment box 1 drives the tension roller 8 to rotate, the unwind roller 9 releases the raw material roll, and the coating roller 11 releases the hot melt adhesive roll. The hot melt adhesive roll is heated and melted by the heating roller 12. The coating roll and the raw material roll are conveyed and initially combined under the action of multiple tension rollers 8. The combined material is wound up on the take-up roller 4 to form a composite roll 7.

[0054] The drive motor 10 drives the drive roller 18 to rotate via the transmission shaft 14. The locking teeth 17 of the drive roller 18 mesh with the inner drive teeth 20 of the wave ring 15, causing the wave ring 15 to move and adjust the position of the raw material roll. Through the continuous rotation of the drive roller 18, the wave ring 15 can move up and down within the two limit plates 16 by using the locking teeth and the inner drive teeth 20 of the wave ring 15. Through the reciprocating up and down motion, the raw material roll is continuously lifted and shaken. In this action, not only is the tension of the raw material roll guaranteed, but the dust adhering to the raw material roll can also be cleaned.

[0055] like Figures 1-8 As shown, the drive roller 18 is connected to the inner drive teeth 20 of the wave ring 15 by the meshing of the locking teeth 17, and the drive roller 18 can rotate under the drive of the transmission shaft 14. The limiting plate 16 is connected to the two side plates 5 by bolts, and the inner side of the limiting plate 16 is tightly attached to the wave ring 15. The wave ring 15 is spliced ​​from the semi-circular structure at the upper and lower ends and the rectangular structure connected between the two semi-circular structures, and the inside is a hollow structure. The drive teeth 20 are fixedly set on the inner wall of the rectangle. The raw material roll is set on the outside of the unwinding roller 9, and the hot melt glue roll is set on the outside of the coating roller 11. The wave ring 15 can move to the upper side or the lower side under the meshing rotation of the drive teeth 20 and the locking teeth 17 of the drive roller 18. When the wave ring 15 moves to the upper side, it can lift the raw material roll above.

[0056] Preferably, the user can start the equipment via control panel 2. The drive motor inside the equipment housing 1 drives each tension roller 8 to rotate, and the unwinding roller 9 and coating roller 11 begin unwinding. At this time, the drive motor 10 mounted on the mounting plate 13 is started. The drive motor 10 drives the transmission shaft 14 to rotate, which in turn drives the drive roller 18 to rotate. When the drive roller 18 rotates, the retaining tooth 17 on one side engages with the drive tooth 20 on one end of the inner side of the wavering ring 15. As the drive roller 18 continues to rotate, the retaining tooth 17 pushes the drive tooth 20, lifting the wavering ring 15 upwards. During the upward movement of the wavering ring 15, its top contacts and lifts the raw material roll. When the retaining tooth 17 of the drive roller 18 rotates to engage with the drive tooth 20 on the other side of the wavering ring 15, the drive roller 18 continues to rotate, driving the wavering ring 15 downwards, thereby releasing the lifted raw material roll. This cycle repeats, with the drive roller 18 continuously rotating, continuously lifting and lowering the raw material roll.

[0057] Optionally, the retaining teeth 17 provided on one side of both ends of the drive roller 18 engage sequentially with the drive teeth 20 on the inner walls of both ends of the wave ring 15 during the rotation of the drive roller 18. Due to the special structural design of the retaining teeth 17 and the drive teeth 20, when the retaining teeth 17 engage with one side of the drive teeth 20, with the circumferential movement of the drive roller 18, the retaining teeth 17 generate an upward or downward thrust on the drive teeth 20, thereby driving the wave ring 15 to move up and down in the vertical direction. The limiting plate 16 is installed on the outside of the rectangular outer wall of the wave ring 15. Its function is to restrict the movement of the wave ring 15 to the vertical direction only, so as to avoid affecting the lifting effect of the raw material coil due to displacement in other directions.

[0058] The undulating ring 15 moves up and down under the drive of the drive roller 18. When the undulating ring 15 moves upward, its top contacts the raw material roll and applies an upward force, lifting the raw material roll to a certain height. When the undulating ring 15 moves downward, the lifting force on the raw material roll disappears, and the raw material roll falls back down. Through this periodic lifting and falling action, the position of the raw material roll is dynamically adjusted.

[0059] In the lamination process, the tension of the raw materials has a significant impact on the lamination quality. By periodically raising and lowering the raw material roll, the tension of the raw materials during transportation can be dynamically adjusted. When the raw material tension is too high, the oscillating ring 15 lowers the raw material roll to relax the raw material and reduce the tension; when the raw material tension is too low, the oscillating ring 15 raises the raw material roll to appropriately increase the tension, thereby ensuring that the raw materials maintain a suitable tension throughout the lamination process and improving the lamination quality.

[0060] Furthermore, raw materials of different materials and thicknesses require different conveying conditions during lamination. This structure can adapt to the characteristics of various materials by adjusting the speed of the drive motor 10, thereby changing the frequency and amplitude of the lifting and lowering of the raw material roll by the wavering ring 15. For example, for thinner and softer materials, the speed of the drive motor 10 can be reduced, allowing the wavering ring 15 to lift and lower the raw material roll slowly and with small amplitude, avoiding damage to the material; for thicker and more rigid materials, the speed of the drive motor 10 can be appropriately increased, increasing the lifting and lowering force of the wavering ring 15 to ensure smooth material conveying and lamination.

[0061] During the lamination process, the uniformity of bonding between the raw material and the coated roll is crucial. By continuously lifting the raw material roll, different parts of the raw material can be subjected to alternating pressure when bonding with the coated roll. This helps the hot melt adhesive to be distributed more evenly on the surface of the raw material, thereby improving the quality of the laminated product and reducing product defects caused by uneven bonding.

[0062] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A large roller hot melt adhesive laminating machine, comprising an equipment box (1) and a base plate (3) disposed on the lower front side of the equipment box (1), and side plates (5) disposed on the front and rear ends of the upper side of the base plate (3); The upper and lower ends of the right side of the two side plates (5) are respectively provided with unwinding rollers (9) and coating rollers (11); Tension rollers (8) are provided at multiple locations on the inner side of the two side plates (5), and a take-up roller (4) is provided on the upper left side of the bottom plate (3). A composite roll (7) is provided on the outer side of the take-up roller (4) for drive winding. A heating roller (12) is provided at the middle position of the side plate (5), and multiple observation windows (6) are provided on the inner side of the side plate (5); The equipment box (1) is powered by connecting to an external power source; Its features are: A mounting plate (13) is provided on the outer side of the right middle of the front side plate (5). A drive motor (10) is provided on the outer side of the mounting plate (13). A transmission shaft (14) is provided on the rear side of the drive motor (10). A drive roller (18) is connected to the rear end of the transmission shaft (14). A plurality of teeth (17) are provided on the outer side of one side of the drive roller (18). A wave ring (15) is provided on the outer side of the drive roller (18). Drive teeth (20) are provided on the inner walls of the left and right ends of the inner side of the wave ring (15). Limiting plates (16) are respectively provided at the left and right ends of the outer side of the wave ring (15).

2. The large roller hot melt adhesive laminating machine according to claim 1, characterized in that: A control box (19) is provided on the outside of the drive motor (10), and the drive motor (10) is powered by the connected equipment box (1). A control panel (2) is provided on the left front side of the equipment box (1). The drive roller (18) and the rear side plate (5) are connected by a movable connection, and the front end of the drive roller (18) is bolted to the transmission shaft (14).

3. The large roller hot melt adhesive laminating machine according to claim 2, characterized in that: The drive roller (18) is connected to the inner drive teeth (20) of the clasp (17) and the wave ring (15) by meshing, and the drive roller (18) can rotate under the transmission of the drive shaft (14).

4. The large roller hot melt adhesive laminating machine according to claim 3, characterized in that: The limiting plate (16) is connected to the two side plates (5) by bolt connection, and the inner side of the limiting plate (16) is tightly fitted with the wave ring (15).

5. A large roller-type hot melt adhesive laminating machine according to claim 4, characterized in that: The wave ring (15) is formed by splicing a semi-circular structure at the upper and lower ends and a rectangular structure connected between the two semi-circular structures, and the inside is a hollow structure. The driving teeth (20) are fixedly set on the inner wall of the rectangle.

6. The large roller hot melt adhesive laminating machine according to claim 1, characterized in that: The unwinding roller (9) has a raw material roll on its outer side, and the coating roller (11) has a hot melt adhesive roll on its outer side.

7. A large roller-type hot melt adhesive laminating machine according to claim 6, characterized in that: The wave ring (15) can move upward or downward under the meshing rotation of the drive roller (18), drive teeth (20) and clamping teeth (17). When the wave ring (15) moves upward, it can lift the upper raw material roll.

8. A large roller-type hot melt adhesive laminating machine according to claim 7, characterized in that: The heating roller (12) is equipped with a heating resistance wire, which is connected to the heating equipment in the equipment box (1) for heating. The coating roll passes through the heating roller (12).

9. A large roller-type hot melt adhesive laminating machine according to claim 8, characterized in that: The coating roll and the raw material roll are combined on the multiple tension rollers (8) on the left side. After being combined on the multiple tension rollers (8), the coating roll and the raw material roll are wound up on the take-up roller (4).

10. A large roller-type hot melt adhesive laminating machine according to claim 1, characterized in that: The equipment box (1) is equipped with multiple drive motors, and the output shafts of the multiple drive motors drive and connect multiple tension rollers (8) in the two side plates (5).

Images