Plastic panel in-mold film coating forming device

Abstract

The utility model relates to a plastic panel in-mold film coating forming device, which belongs to the technical field of plastic panel forming machines, and comprises a mouth mold, the mouth mold comprises an upper mold, a lower mold and two side plates, the upper mold and the lower mold are vertically arranged at an interval, and the two side plates are respectively arranged on the left side and the right side of the upper mold and the lower mold in a sealed manner and are fixedly connected with the upper mold and the lower mold. A front opening of the panel forming channel is arranged to be a panel outlet, a rear opening of the panel forming channel is arranged to be a hot melt adhesive inlet, the front portion of the lower die protrudes out of the front lower portion of the upper die, an adjusting block is arranged on the front side of the upper die, and the height of the bottom of the adjusting block can be adjusted relative to the front protruding portion of the lower die. The thickness of the plastic panel is adjusted by adjusting the height of the panel outlet; an upper film pressing block used for pressing and attaching a film to the top face of the plastic panel is arranged on the front side of the adjusting block, and a lower film pressing block used for pressing and attaching the film to the bottom face of the plastic panel is arranged on the front side of the lower die.

Description

Technical Field

[0001] This utility model relates to the field of plastic panel molding machine technology, and in particular to an in-mold coating molding device for plastic panels. Background Technology

[0002] Traditional plastic panel molding equipment with in-mold coating function does not have height adjustment function for the panel outlet of the die, and can only be used to mold plastic panels of the same thickness, which is not flexible enough. Utility Model Content

[0003] The present invention aims to provide an in-mold coating forming device for plastic panels, wherein the panel exit height of the die is adjustable to suit the forming of plastic panels of different thicknesses.

[0004] Therefore, the present invention adopts the following technical solution:

[0005] A plastic panel in-mold coating forming device includes a die, which comprises an upper die, a lower die, and two side plates. The upper and lower dies are positioned vertically apart. The two side plates are enclosed on the left and right sides of the upper and lower dies and are fixedly connected to the upper and lower dies, forming a through-flow panel forming channel. The front opening of the panel forming channel is designated as the panel outlet, and the rear opening is designated as the hot melt adhesive inlet. The front part of the lower die protrudes below the front of the upper die. An adjusting block is provided on the front side of the upper die. The bottom height of the adjusting block can be adjusted relative to the front protrusion of the lower die to adjust the thickness of the plastic panel by adjusting the height of the panel outlet. An upper pressing block is provided on the front side of the adjusting block for pressing the film onto the top surface of the plastic panel, and a lower pressing block is provided on the front side of the lower die for pressing the film onto the bottom surface of the plastic panel.

[0006] As a preferred embodiment, the adjusting block includes a body, on which a first longitudinal elongated hole is provided that is connected from front to back. A first screw passes through the first longitudinal elongated hole, and a first screw hole is screwed into a first screw hole corresponding to the front end face of the upper mold, so as to lock and fix the adjusting block on the upper mold and enable the height of the entire adjusting block to be adjusted.

[0007] As a preferred embodiment, the bottom of the main body is bent forward horizontally to form an elastic pressing part. A screw seat is provided on the main body above the elastic pressing part. The screw seat has a second screw hole that is connected to the top and bottom. An adjusting screw is screwed into the second screw hole. The bottom end of the adjusting screw is aligned with the front of the elastic pressing part so as to achieve individual adjustment of the bottom height of the adjusting block by adjusting the height of the elastic pressing part.

[0008] As a preferred embodiment, the bottom surface of the upper pressure block is not higher than the bottom surface of the elastic pressing part.

[0009] As a preferred embodiment, the upper pressure block and the adjusting block are separated by a top-to-bottom communicating channel for guiding the film to the upper film channel between the upper pressure block and the plastic panel.

[0010] As a preferred embodiment, the upper pressure film block is provided with a second longitudinal elongated hole at both ends, and a second screw is inserted into each of the second longitudinal elongated holes at both ends. The second screws at both ends are respectively screwed into the corresponding third screw holes provided on the two side plates, so as to lock and fix the upper pressure film block to the two side plates and make the height of the upper pressure film block adjustable.

[0011] As a preferred option, the top surface of the pressure plate should not be lower than the top surface of the lower die.

[0012] As a preferred embodiment, the lower pressure film block and the lower mold are separated by a top-bottom communicating channel for guiding the film to the lower film channel between the lower pressure film block and the plastic panel.

[0013] As a preferred embodiment, the pressure diaphragm block is provided with a third longitudinal elongated hole at both ends, and a third screw is inserted into each of the third longitudinal elongated holes at both ends. The third screw is screwed into the fourth screw holes provided on the two side plates respectively, so as to lock and fix the pressure diaphragm block to the two side plates and make the height of the pressure diaphragm block adjustable.

[0014] This invention features a height-adjustable block at the panel exit of the die. By adjusting the height of this block, the height of the die's panel exit can be adjusted, thereby allowing for the adjustment of the plastic panel thickness and the production of plastic panels of varying thicknesses. This invention improves the operational flexibility of plastic panel molding machines. Attached Figure Description

[0015] Figure 1 A schematic diagram of the overall structure of the in-mold coating molding device for plastic panels;

[0016] Figure 2 This is a cross-sectional view of the overall structure of the in-mold coating forming device for plastic panels;

[0017] Figure 3 This is a schematic diagram of a partial structure of an in-mold coating forming device for plastic panels from a certain angle.

[0018] Figure 4 This is a schematic diagram of a partial structure of an in-mold coating device for plastic panels from another angle. Detailed Implementation

[0019] To better understand this utility model, it will be described below with reference to the accompanying drawings and specific embodiments.

[0020] like Figures 1 to 4The plastic panel forming and laminating machine shown includes a die 10, which includes an upper die 11, a lower die 12, two side plates 13, and a hot melt adhesive inlet die 15. The upper die 11 and the lower die 12 are arranged vertically apart. The two side plates 13 are closed and respectively arranged on the left and right sides of the upper die 11 and the lower die 12 and are fixedly connected to the upper die 11 and the lower die 12, so as to form a panel forming cavity 14 that is open from front to back with the upper die 11 and the lower die 12. The front opening of the panel forming cavity 14 is set as the panel outlet and the rear opening is set as the hot melt adhesive inlet. The discharge end of the hot melt adhesive inlet die 15 is inserted and fixed in the hot melt adhesive inlet.

[0021] like Figure 2 As shown, the front of the lower mold 12 protrudes below the front of the upper mold 11. An adjusting block 20 is provided at the front end of the upper mold 11. The bottom height of the adjusting block 20 can be adjusted relative to the front protrusion of the lower mold 12 to adjust the thickness of the plastic panel by adjusting the height of the panel outlet. The adjusting block 20 includes a body 21 with a first longitudinal elongated hole that runs through the front and rear. A first screw passes through the first longitudinal elongated hole, and a first screw hole is screwed into a corresponding first screw hole on the front end of the upper mold 11 to lock the adjusting block 20 onto the upper mold 11 and allow the height of the entire adjusting block 20 to be adjusted. The bottom of the main body 21 is bent forward horizontally to form an elastic pressing part 22. A screw seat 23 is provided on the main body 21 above the elastic pressing part 22. The screw seat 23 has a second screw hole that is connected to the top and bottom. An adjusting screw 30 is screwed into the second screw hole. The bottom end of the adjusting screw 30 is aligned with the front of the elastic pressing part 22 so as to adjust the height of the bottom of the adjusting block 20 individually by adjusting the height of the elastic pressing part 22.

[0022] like Figures 1 to 4 As shown, the front side of the adjusting block 20 is provided with an upper pressure film block 40 for pressing the film onto the top surface of the plastic panel. The upper pressure film block 40 has two longitudinally connected holes at both ends, and a second screw passes through each of these holes. These screws are screwed into corresponding third screw holes on the front sides of the two side plates 13, thereby locking the upper pressure film block 40 onto the two side plates 13 and allowing the height of the upper pressure film block 40 to be adjusted so that its bottom surface is not higher than the bottom surface of the elastic pressing part 22. An upper film channel 60, which is connected to the top and bottom of the upper pressure film block 40, is provided between the upper pressure film block 40 and the adjusting block 20 to guide the film between the upper pressure film block 40 and the plastic panel.

[0023] like Figures 1 to 4As shown, the front side of the lower mold 12 is provided with a pressing film block 50 for pressing the film onto the bottom surface of the plastic panel. The pressing film block 50 has three longitudinal holes at both ends, and a third screw passes through each of these holes. These screws are screwed into corresponding fourth screw holes on the front sides of the two side plates 13, thereby locking the pressing film block 50 onto the two side plates 13 and allowing the height of the pressing film block 50 to be adjusted so that its top surface is not lower than the top surface of the lower mold 12. A lower film channel 70, with top and bottom communication, guides the film between the pressing film block 50 and the plastic panel.

[0024] In addition, such as Figures 1 to 2 As shown, an upper support 80 is provided at the top of the die 10, and an upper guide roller 81 is provided on the upper support 80 for guiding the film from the rear of the die 10 into the upper film channel 50. A lower support 90 is provided at the bottom of the die 10, and a lower guide roller 91 is provided on the lower support 90 for guiding the film from the rear of the die 10 into the lower film channel 70.

[0025] When using, such as Figure 2 As shown, hot melt adhesive is introduced into mold 15 and connected to the hot melt adhesive outlet of the extruder. After the hot melt adhesive is formed in the panel forming cavity 14, it becomes a plastic panel. The plastic panel is then led out from below the adjusting block 20 and between the upper pressure film block 40 and the lower pressure film block 60. Meanwhile, the upper film 01 on one film release roller is led out sequentially along the upper guide film roller 81, the upper film channel 60, and the bottom of the upper pressure film block 40, allowing the upper film 01 to be attached to the top surface of the plastic panel. The lower film 02 on another film release roller is led out sequentially along the lower guide film roller 91, the lower film channel 70, and the top of the lower pressure film block 50, allowing the lower film 02 to be attached to the bottom surface of the plastic panel. This simultaneously completes the forming of the plastic panel and the coating of both the top and bottom surfaces.

Claims

1. An in-mold coating forming device for plastic panels, characterized in that: The die includes a die (10), which includes an upper die (11), a lower die (12), and two side plates (13). The upper die (11) and the lower die (12) are set apart vertically. The two side plates (13) are closed and respectively set on the left and right sides of the upper die (11) and the lower die (12) and are fixedly connected to the upper die (11) and the lower die (12) to form a panel forming channel (14) that runs through the front and back of the upper die (11) and the lower die (12). The front opening of the panel forming channel (14) is set as the panel outlet and the rear opening is set as the panel outlet. The hot melt adhesive inlet has a lower mold (12) with its front part protruding below the front of the upper mold (11). The upper mold (11) has an adjustment block (20) on its front side. The bottom height of the adjustment block (20) can be adjusted relative to the front protrusion of the lower mold (12) to adjust the thickness of the plastic panel by adjusting the height of the panel outlet. The front side of the adjustment block (20) has an upper pressing block (40) for pressing the film onto the top surface of the plastic panel, and the front side of the lower mold (12) has a lower pressing block (50) for pressing the film onto the bottom surface of the plastic panel.

2. The in-mold coating forming device for plastic panels according to claim 1, characterized in that: The adjusting block (20) includes a body (21), on which a first longitudinal long hole is provided that is connected from front to back. A first screw is inserted into the first longitudinal long hole, and the first screw hole is screwed into the first screw hole corresponding to the front end face of the upper mold (11) so as to lock and fix the adjusting block (20) on the upper mold (11) and make the height of the entire adjusting block (20) adjustable.

3. The in-mold coating forming device for plastic panels according to claim 2, characterized in that: The bottom of the body (21) is bent forward horizontally to form an elastic pressing part (22). A screw seat (23) is provided on the body (21) above the elastic pressing part (22). A second screw hole with the top and bottom connected is provided on the screw seat (23). An adjusting screw (30) is screwed into the second screw hole. The bottom end of the adjusting screw (30) is aligned with the front of the elastic pressing part (22) so as to realize the individual adjustment of the bottom height of the adjusting block (20) by adjusting the height of the elastic pressing part (22).

4. The in-mold coating forming device for plastic panels according to claim 1, characterized in that: The bottom surface of the upper pressure block (40) is not higher than the bottom surface of the elastic pressing part (22).

5. The in-mold coating forming apparatus for plastic panels according to claim 1 or 4, characterized in that: The upper pressure block (40) and the adjusting block (20) are separated by a top-to-bottom communicating channel (60) for guiding the film to the upper film channel (40) between the upper pressure block (40) and the plastic panel.

6. The in-mold coating forming apparatus for plastic panels according to claim 5, characterized in that: The upper pressure block (40) has a second longitudinal long hole that is connected from front to back at both ends. A second screw is inserted into the second longitudinal long hole at both ends. The second screw at both ends is screwed into the third screw hole corresponding to the front of the two side plates (13) to lock and fix the upper pressure block (40) onto the two side plates (13) and to make the height of the upper pressure block (40) adjustable.

7. The in-mold coating forming apparatus for plastic panels according to claim 1, characterized in that: The top surface of the lower pressure block (50) is not lower than the top surface of the lower mold (12).

8. The in-mold coating forming apparatus for plastic panels according to claim 1 or 7, characterized in that: The lower pressure film block (50) and the lower mold (12) are separated by a top-bottom communication channel (70) for guiding the film to the lower film channel (50) between the lower pressure film block (50) and the plastic panel.

9. The in-mold coating forming apparatus for plastic panels according to claim 8, characterized in that: The pressure diaphragm block (50) has a third longitudinal long hole that is connected to the front and back at both ends. A third screw is inserted into the third longitudinal long hole at both ends. The third screw is screwed into the fourth screw hole provided on the front of the two side plates (13) respectively, so as to lock the pressure diaphragm block (50) onto the two side plates (13) and make the height of the pressure diaphragm block (50) adjustable.

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