Sheet thermal laminating device
By precisely adjusting the position of the curved roller, the problem of wrinkling caused by the deformation of the film under high temperature conditions was solved, thus improving the coating quality and yield of the sheet thermal lamination device.
Patent Information
- Application Number
- CN202522804024.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-30
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-12-30
AI Technical Summary
Existing sheet thermal lamination equipment is prone to film deformation under high temperature conditions, resulting in wrinkling, which affects the lamination quality and yield. Furthermore, traditional arc roller positioning mechanisms are difficult to accurately control the film conveying path and position.
A position adjustment mechanism is used to precisely adjust the position of the curved roller, so that it is as close as possible to the pressing gap between the fixed roller and the pressure roller without interfering with the die head. This shortens the film length between the curved roller and the fixed roller and the pressure roller, reducing the problem of film wrinkling.
It effectively reduces or prevents wrinkling of the film before lamination, improving the lamination effect and yield.
Smart Images
Figure CN223890475U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sheet production equipment, specifically to a sheet heat coating device. Background Technology
[0002] With increasingly stringent requirements for sheet surface properties, such as waterproofing, moisture resistance, lightfastness, and tensile strength, lamination has become a common processing method. By attaching a protective film to the sheet surface, it not only enhances the sheet's durability but also improves its functionality. Especially in some specialized processes, thermal lamination is required, which involves laminating at higher temperatures to promote adhesion and uniformity between the film and the sheet.
[0003] Existing sheet thermal laminating equipment typically includes a pressure roller, a stationary roller, and an arc roller. The pressure roller and stationary roller press against each other and rotate relative to each other. The gap between the pressure roller and stationary roller is generally located below the extrusion port of the sheet forming machine's die. The arc roller is positioned to one side of the stationary roller. During operation, the sheet extruded from the die of the sheet forming machine passes between the pressure roller and stationary roller, while the film exits from the arc roller and enters the space between the stationary roller and pressure roller to laminate with the sheet. However, because the thermal laminating process is usually close to the die, the ambient temperature is high, reaching 130℃-180℃. Under these high-temperature conditions, the film is prone to deformation due to heat before entering the space between the stationary roller and pressure roller to laminate with the sheet after exiting from the arc roller, leading to wrinkling on the film surface. This affects the laminating quality and yield. Furthermore, the traditional arc roller positioning mechanism struggles to accurately control the film's transport path and position, further exacerbating the wrinkling problem. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a sheet thermal lamination device. This device can adjust the position of the arc-shaped roller to minimize the film length between the arc-shaped roller and the stationary roller and the pressure roller, effectively reducing or preventing wrinkling of the film before lamination, thereby improving the lamination effect. The technical solution adopted is as follows:
[0005] A sheet thermal laminating apparatus includes a base, a fixed roller, a pressure roller, and an arc-shaped roller. The fixed roller and the pressure roller are rotatably mounted on the base and are arranged in a left-right direction. The pressure roller is located to the left or right of the fixed roller. The pressure roller and the fixed roller press against each other and rotate relative to each other. The arc-shaped roller is disposed on one side of the fixed roller and is located above the pressing gap between the pressure roller and the fixed roller. The apparatus is characterized in that: the sheet thermal laminating apparatus further includes two adjusting seats and a position adjusting mechanism for adjusting the position of the two adjusting seats in the front-back and up-down directions. The two adjusting seats are mounted on the base through the position adjusting mechanism and are arranged side by side. The left and right ends of the arc-shaped roller are rotatably mounted on the two adjusting seats respectively.
[0006] Typically, the aforementioned sheet heat coating device is located below the die head of the sheet forming machine, with the pressing gap between the pressure roller and the stationary roller located below the extrusion port of the die head. The stationary roller rotates continuously under the drive of a drive motor, and the pressing state between the pressure roller and the stationary roller drives the pressure roller to rotate relative to each other.
[0007] During operation, the pressure roller and the stationary roller press against each other and rotate relative to each other. The sheet extruded from the die of the sheet forming machine passes between the pressure roller and the stationary roller, while the film passes over the surface of the curved roller and enters the space between the stationary roller and the pressure roller to be laminated with the sheet. Before production, the positions of the two adjusting seats and the curved roller in the front-back and up-down directions can be precisely adjusted by the position adjustment mechanism to precisely adjust the relative position of the curved roller and the stationary roller. This ensures that the curved roller is as close as possible to the pressing gap between the stationary roller and the pressure roller without interfering with the die, thus minimizing the film length between the curved roller and the stationary roller (the shorter the better). This effectively reduces or prevents wrinkling of the film before lamination, thereby improving the lamination effect.
[0008] In a preferred embodiment of this invention, the position adjustment mechanism includes two position adjustment units arranged side-by-side. Each position adjustment unit includes a vertical adjustment component and a horizontal adjustment component. The vertical adjustment component is mounted on the base, and the horizontal adjustment component is mounted on the adjustment end of the vertical adjustment component. Two adjustment seats correspond one-to-one with the two position adjustment units, and are mounted on the adjustment ends of the horizontal adjustment components of the corresponding position adjustment units. With this structure, the vertical positions of the corresponding horizontal adjustment components and adjustment seats can be adjusted using the two vertical adjustment components, and the horizontal positions of the corresponding adjustment seats can be adjusted using the two horizontal adjustment components, thereby enabling adjustment of the positions of the two adjustment seats in both the horizontal and vertical directions.
[0009] As a further preferred embodiment of this utility model, the up-down adjustment assembly includes a supporting base plate, an adjusting plate, and two adjusting screws. The supporting base plate is mounted on the machine base, and the lower ends of the two adjusting screws are respectively fixedly mounted on the two ends of the supporting base plate. The adjusting plate is positioned above the supporting base plate and has two vertically oriented connecting through holes, each corresponding to one of the two adjusting screws. The middle section of each adjusting screw is located in and engages with the corresponding connecting through hole. Each adjusting screw is equipped with an upper adjusting nut and a lower adjusting nut, which are located on the upper and lower sides of the adjusting plate, respectively, and together clamp the adjusting plate. The adjusting seat is mounted on the adjusting plate via the front-rear adjustment assembly. When it is necessary to adjust the position of the adjusting seat in the up-down direction, the positions of the two upper adjusting nuts and the two lower adjusting nuts on the corresponding adjusting screws can be adjusted downwards or upwards to change the position of the adjusting plate, the front-rear adjustment assembly, and the adjusting seat in the up-down direction.
[0010] As a further preferred embodiment of this utility model, the front and rear adjustment assembly includes a strip-shaped adjustment hole, two positioning bolts, and two positioning nuts. The strip-shaped adjustment hole is formed on the adjustment plate and extends in the front-rear direction. The adjustment seat is disposed on the adjustment plate. The front and rear ends of the adjustment seat are respectively provided with vertically oriented connecting through holes. The two positioning bolts correspond one-to-one with the two connecting through holes. The screws of the positioning bolts pass downwards through the connecting through holes and the strip-shaped adjustment hole in sequence, and then engage with the corresponding positioning nuts. The heads of the two positioning bolts and the two positioning nuts together clamp the adjustment seat and the adjustment plate. When it is necessary to adjust the position of the adjustment seat in the front-rear direction, first loosen the two positioning nuts of the front and rear adjustment assembly, then move the two positioning bolts forward or backward along the strip-shaped adjustment hole to the target position, and finally tighten the two positioning nuts. The heads of the two positioning bolts and the two positioning nuts together clamp the adjustment seat and the adjustment plate, fixing the adjustment seat to the adjustment plate.
[0011] In another preferred embodiment of this utility model, the position adjustment mechanism includes two position adjustment units arranged side by side. Each position adjustment unit includes a vertical adjustment component and a horizontal adjustment component. The horizontal adjustment component is mounted on the base, and the vertical adjustment component is mounted on the adjustment end of the horizontal adjustment component. Two adjustment seats correspond one-to-one with the two position adjustment units, and are mounted on the adjustment ends of the vertical adjustment components of the corresponding position adjustment units. With this structure, the positions of the corresponding vertical adjustment components and adjustment seats in the horizontal direction can be adjusted separately using the two horizontal adjustment components, and the positions of the corresponding adjustment seats in the vertical direction can be adjusted separately using the two vertical adjustment components. This allows for adjustment of the positions of the two adjustment seats in both the horizontal and vertical directions.
[0012] As a preferred embodiment of this utility model, the adjusting seat is provided with an insertion groove for the end of the arc-shaped roller to be inserted. The side wall of the adjusting seat is provided with a locking screw hole communicating with the insertion groove. A locking bolt is installed in the locking screw hole, and the end of the locking bolt's screw is in close contact with the corresponding end of the arc-shaped roller. An adjusting handwheel is installed on the head of the locking bolt. In use, the adjusting handwheel can be rotated to separate the end of the locking bolt from the corresponding end of the arc-shaped roller, thereby adjusting the orientation of the arc-shaped roller to adjust the flattening effect. Finally, the handwheel can be reversed to ensure that the end of the locking bolt's screw is in close contact with the corresponding end of the arc-shaped roller.
[0013] Compared with the prior art, this utility model has the following advantages:
[0014] This sheet thermal laminating device can precisely adjust the relative positions of the curved roller and the fixed roller by adjusting the positions of the two adjusting seats in the front-back and up-down directions through the position adjustment mechanism. This allows the curved roller to be as close as possible to the pressing gap between the fixed roller and the pressure roller without interfering with the die head, so as to shorten the film length between the curved roller and the fixed roller and the pressure roller as much as possible (the shorter the better). This effectively reduces or prevents the film from wrinkling before lamination, thereby improving its laminating effect. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the sheet heat coating device according to a preferred embodiment of the present invention.
[0016] Figure 2 yes Figure 1 A schematic diagram of the position adjustment mechanism in the sheet thermal coating device shown.
[0017] Figure 3 yes Figure 2 The diagram shows the connection and cooperation between the position adjustment unit, the adjustment seat, and the arc roller in the position adjustment mechanism. Detailed Implementation
[0018] like Figures 1-3 As shown, this sheet heat-coating device includes a base 1, a fixed roller 2, a pressure roller 3, a drive motor (not shown in the figure), an arc roller 4, a position adjustment mechanism 5, and two adjustment seats 6. The fixed roller 2 and the pressure roller 3 are rotatably mounted on the base 1 and are arranged in a left-right direction. The drive motor is mounted on the base 1, and the output shaft of the drive motor is connected to the fixed roller 2. The pressure roller 3 is located to the left of the fixed roller 2, and the pressure roller 3 and the fixed roller 2 press against each other and rotate relative to each other. The arc roller 4 is located on one side of the fixed roller 2 and is above the pressing gap between the pressure roller 3 and the fixed roller 2. The position adjustment mechanism 5 includes two position adjustment units arranged side by side. Each position adjustment unit includes an up-down adjustment component 51 and a front-back adjustment component 52. The up-down adjustment component 51 is mounted on the base 1, and the front-back adjustment component 52 is mounted on the adjustment end of the up-down adjustment component 51. The two adjustment seats 6 correspond one-to-one with the two position adjustment units. The two adjustment seats 6 are respectively mounted on the adjustment ends of the front-back adjustment components 52 of the corresponding position adjustment units. The left and right ends of the arc roller 4 are rotatably mounted on the two adjustment seats 6.
[0019] In this embodiment, the up-down adjustment assembly 51 includes a support base plate 511, an adjustment plate 512, and two adjustment screws 513. The support base plate 511 is mounted on the machine base 1. The lower ends of the two adjustment screws 513 are respectively fixedly mounted on the two ends of the support base plate 511. The adjustment plate 512 is disposed above the support base plate 511. The adjustment plate 512 has two vertically oriented connecting through holes, which correspond one-to-one with the two adjustment screws 513. The middle section of the adjustment screw 513 is located in the corresponding connecting through hole and engages with the connecting through hole. Each adjustment screw 513 is equipped with an upper adjusting nut 514 and a lower adjusting nut 515. 4. The lower adjusting nuts 515 are located on the upper and lower sides of the adjusting plate 512 respectively, and together they clamp the adjusting plate 512; the front and rear adjusting assembly 52 includes a strip-shaped adjusting hole, two positioning bolts and two positioning nuts. The strip-shaped adjusting hole is opened on the adjusting plate 512 and extends in the front and rear direction. The adjusting seat 6 is set on the adjusting plate 512. The front and rear ends of the adjusting seat 6 are respectively provided with vertically oriented connecting through holes. The two positioning bolts correspond one-to-one with the two connecting through holes. The screw of the positioning bolt passes through the connecting through hole and the strip-shaped adjusting hole in sequence and then engages with the corresponding positioning nut; the heads of the two positioning bolts and the two positioning nuts together clamp the adjusting seat 6 and the adjusting plate 512. When the position of the adjusting seat 6 in the vertical direction needs to be adjusted, the positions of the two upper adjusting nuts 514 and the two lower adjusting nuts 515 on the corresponding adjusting screws 513 can be adjusted down or up to change the position of the adjusting plate 512, the front and rear adjusting components 52 and the adjusting seat 6 in the vertical direction. When the position of the adjusting seat 6 in the front and rear direction needs to be adjusted, first loosen the two positioning nuts of the front and rear adjusting components 52, then move the two positioning bolts forward or backward along the strip-shaped adjusting hole to the target position, and finally tighten the two positioning nuts. The heads of the two positioning bolts and the two positioning nuts together clamp the adjusting seat 6 and the adjusting plate 512, fixing the adjusting seat 6 on the adjusting plate 512.
[0020] In this embodiment, the adjusting seat 6 is provided with an insertion groove for the end of the arc-shaped roller 4 to be inserted. The side wall of the adjusting seat 6 is provided with a locking screw hole communicating with the insertion groove. A locking bolt 7 is installed in the locking screw hole. The end of the screw of the locking bolt 7 is in close contact with the corresponding end of the arc-shaped roller 4. An adjusting handwheel 8 is installed on the head of the locking bolt 7. In use, the adjusting handwheel 8 can be rotated to separate the end of the screw of the locking bolt 7 from the corresponding end of the arc-shaped roller 4, and then the orientation of the arc-shaped roller 4 can be adjusted to adjust the flattening effect. Finally, the handwheel 8 can be adjusted in the opposite direction to make the end of the screw of the locking bolt 7 in close contact with the corresponding end of the arc-shaped roller 4.
[0021] The working principle of this sheet heat-coating device is briefly described below:
[0022] The sheet heat coating device is located below the die head 60 of the sheet machine, and the pressing gap between the pressure roller 3 and the fixed roller 2 is located below the extrusion port of the die head 60.
[0023] During operation, the fixed roller 2 rotates continuously under the drive of the drive motor. Utilizing the pressure roller 3's contact with the fixed roller 2, the pressure roller 3 rotates relative to the fixed roller 2. The sheet extruded from the die head 60 of the sheet forming machine passes between the pressure roller 3 and the fixed roller 2, while the film 100 passes over the surface of the curved roller 4 and enters the space between the fixed roller 2 and the pressure roller 3 to laminate with the sheet. Before production, the positions of the corresponding front-rear adjustment components 52 and adjustment seats 6 in the vertical direction can be adjusted using the two vertical adjustment components 51 of the position adjustment mechanism 5, and the positions of the corresponding adjustment seats 6 in the front-rear direction can be adjusted using the front-rear adjustment components 52. This allows for precise adjustment of the relative position of the curved roller 4 and the fixed roller 2, ensuring that the curved roller 4 is as close as possible to the contact gap between the fixed roller 2 and the pressure roller 3 without interfering with the die head 60. This minimizes the film length of the film 100 between the curved roller 4 and the fixed roller 2 and the pressure roller 3 (the shorter the better), effectively reducing or preventing wrinkling of the film 100 before lamination, thereby improving the lamination effect.
[0024] Furthermore, it should be noted that the names of the various parts of the specific embodiments described in this specification may differ. All equivalent or simple variations made to the structure, features, and principles of this utility model patent are included within the protection scope of this utility model patent. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, as long as they do not deviate from the structure of this utility model or exceed the scope defined by the claims, they should all fall within the protection scope of this utility model.
Claims
1. A sheet thermal laminating apparatus, comprising a base, a fixed roller, a pressure roller, and an arc-shaped roller, wherein the fixed roller and the pressure roller are rotatably mounted on the base and are arranged in a left-right orientation, the pressure roller is located to the left or right of the fixed roller, the pressure roller and the fixed roller press against each other and rotate relative to each other, and the arc-shaped roller is disposed on one side of the fixed roller and is located above the pressing gap between the pressure roller and the fixed roller; characterized in that: The sheet heat coating device also includes two adjusting seats and a position adjusting mechanism for adjusting the position of the two adjusting seats in the front-back and up-down directions. The two adjusting seats are installed on the machine base through the position adjusting mechanism. The two adjusting seats are arranged side by side, and the left and right ends of the arc-shaped roller are rotatably installed on the two adjusting seats respectively.
2. The sheet thermal coating apparatus according to claim 1, characterized in that: The position adjustment mechanism includes two position adjustment units arranged side by side. Each position adjustment unit includes a vertical adjustment component and a front-back adjustment component. The vertical adjustment component is mounted on the base, and the front-back adjustment component is mounted on the adjustment end of the vertical adjustment component. The two adjustment seats correspond one-to-one with the two position adjustment units and are mounted on the adjustment end of the front-back adjustment component of the corresponding position adjustment unit.
3. The sheet thermal coating apparatus according to claim 2, characterized in that: The up-down adjustment assembly includes a support base plate, an adjustment plate, and two adjustment screws. The support base plate is mounted on the machine base. The lower ends of the two adjustment screws are fixedly mounted on the two ends of the support base plate, respectively. The adjustment plate is positioned above the support base plate and has two vertically oriented connecting through holes. The two connecting through holes correspond one-to-one with the two adjustment screws. The middle section of the adjustment screw is located in the corresponding connecting through hole and engages with the connecting through hole. Each adjustment screw is equipped with an upper adjustment nut and a lower adjustment nut. The upper and lower adjustment nuts are located on the upper and lower sides of the adjustment plate, respectively, and together clamp the adjustment plate. The adjustment seat is mounted on the adjustment plate via the front-rear adjustment assembly.
4. The sheet thermal coating apparatus according to claim 3, characterized in that: The front and rear adjustment assembly includes a strip-shaped adjustment hole, two positioning bolts, and two positioning nuts. The strip-shaped adjustment hole is opened on the adjustment plate and extends in the front and rear direction. The adjustment seat is set on the adjustment plate. The front and rear ends of the adjustment seat are respectively provided with vertically oriented connecting through holes. The two positioning bolts correspond one-to-one with the two connecting through holes. The screw of the positioning bolt passes downward through the connecting through hole and the strip-shaped adjustment hole in sequence and then engages with the corresponding positioning nut. The heads of the two positioning bolts and the two positioning nuts together clamp the adjustment seat and the adjustment plate.
5. A sheet heat-coating apparatus according to any one of claims 1-4, characterized in that: The adjusting seat is provided with a slot for inserting the end of the arc-shaped roller. The side wall of the adjusting seat is provided with a locking screw hole that communicates with the slot. A locking bolt is installed in the locking screw hole. The end of the locking bolt is in close contact with the corresponding end of the arc-shaped roller. An adjusting handwheel is installed on the head of the locking bolt.