ABS (acrylonitrile butadiene styrene) plastic panel in-mold double-sided laminating integrated forming device

Abstract

The utility model relates to an ABS (Acrylonitrile Butadiene Styrene) plastic panel in-mold double-sided laminating integrated forming device, which belongs to the technical field of plastic panel forming machines, and comprises a forming module and a shaping module, the forming module comprises a mouth mold, the shaping module comprises a front shaping mold, the front shaping mold is arranged on the rear side of the mouth mold, and a front-back through forming channel is arranged in the mouth mold; a front shaping channel which is through in the front-back direction and is in butt joint with the forming channel is arranged in the front shaping mold, the forming channel is a transverse flat hole and used for outputting flat plastic panels, the front shaping channel is a transverse flat hole, and the bottom face of the front shaping channel is a downwards-concave arc face which is low in the middle and high in the left side and the right side, and the situation that the shaped plastic panels are not straight and uneven in thickness can be avoided.

Description

Technical Field

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

[0002] When the plastic panel emerges from the extruder die, it has not yet cooled and solidified. Therefore, it needs to be guided into a setting mold for cooling and solidification. Traditional plastic panel molding equipment uses a straight setting channel within the setting mold to shape flat plastic panels. However, for flat plastic panels made of ABS material, due to the material's properties, using a straight setting channel will cause the panel to bend irregularly downwards on both sides as it moves within the channel. This results in uneven stress distribution, leading to a non-flat and uneven thickness on the panel surface. Utility Model Content

[0003] The present invention aims to provide a molding apparatus specifically for flat plastic panels made of ABS material, so as to eliminate the above-mentioned defects of traditional plastic panel molding equipment.

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

[0005] An in-mold double-sided lamination integrated molding device for ABS plastic panels includes a molding module and a shaping module. The molding module includes a die, and the shaping module includes a front shaping mold located behind the die. The die has a molding channel that runs through it from front to back, and the front shaping mold has a front shaping channel that runs through it from front to back and aligns with the molding channel. The molding channel is a horizontal flat hole for outputting flat plastic panels. The front shaping channel is a horizontal flat hole with a concave arc surface that is low in the middle and high on the left and right sides.

[0006] This invention features a front shaping mold arranged sequentially outside the die, with a front shaping channel inside the mold that is lower in the middle and higher on both sides. The ABS plastic panel coming from the die can have the effects of uneven stress eliminated by the front shaping channel, preventing the shaped plastic panel from being uneven in straightness and thickness. Furthermore, this invention also has the function of simultaneously applying double-sided lamination to the plastic panel. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0008] Figure 2 This is a cross-sectional view of the molding module structure of this utility model;

[0009] Figure 3 For this Figure 2 Enlarged view of the local structure within the dashed circle;

[0010] Figure 4 This is a schematic diagram of the pre-forming mold structure of this utility model;

[0011] Figure 5 This is a schematic diagram of the post-forming mold structure of this utility model;

[0012] Figure 6 This is a schematic diagram showing the positional relationship between the front shaping channel and the rear shaping channel of this utility model;

[0013] Figure 7 This is a schematic diagram illustrating the usage method of this utility model. Detailed Implementation

[0014] To better understand this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. The directional terms "front," "rear," "left," and "right" used in this utility model refer to the direction of movement of the plastic panel, with the forward direction of the plastic panel considered as the front, and do not represent the actual direction of the object.

[0015] like Figure 1 The ABS plastic panel in-mold double-sided film coating integrated molding device shown includes a molding module 10 and a shaping module 20. The molding module 10 includes a die 11, an adjusting block 12, an upper pressure block 13 and a lower pressure block 14. The shaping module 20 includes a front shaping mold 21 and a rear shaping mold 22.

[0016] like Figures 2 to 3 As shown, the die 11 includes an upper die 11.1, a lower die 11.2, two side plates 11.4, and a hot melt adhesive inlet die 11.5. The upper die 11.1 and the lower die 11.2 are arranged vertically apart. The two side plates 11.4 are closed and respectively disposed on the left and right sides of the upper die 11.1 and the lower die 11.2 and are fixedly connected to the upper die 11.1 and the lower die 11.2 to fix the upper die 11.1 and the lower die 11.2 into one piece. They together form a forming channel 11.3 that is open from front to back with the upper die 11.3. The forming channel 11.3 is a horizontal flat hole with its front opening as a panel outlet and its rear opening as a hot melt adhesive inlet. The hot melt adhesive inlet die 11.5 is fixedly disposed at the rear of the die 11 and is connected to the hot melt adhesive inlet.

[0017] like Figure 2 and 3As shown, the front of the lower mold 11.2 protrudes from the front of the upper mold 11.1. The adjusting block 12 is located on the front side of the upper mold 11.1 and is spaced apart from the lower mold 11.2 by an adjusting opening 15. The adjusting block 12 includes a body 12.1. The body 12.1 has a first longitudinal elongated hole that is connected to the front and rear. A first screw passes through the first longitudinal elongated hole. The first screw hole is screwed into the first screw hole corresponding to the front end of the upper mold 11.1, so as to lock the adjusting block 12 onto the upper mold 11.1 and make the height of the entire adjusting block 12 adjustable. The bottom of the main body 12.1 is bent forward horizontally to form an elastic pressing part 12.2. A screw seat 12.3 is provided on the main body 12.1 above the elastic pressing part 12.2. The screw seat 12.3 is provided with a second screw hole that is connected to the top and bottom. An adjusting screw 16 is screwed into the second screw hole. The bottom end of the adjusting screw 16 is aligned with the front part of the elastic pressing part 12.2 so as to achieve individual adjustment of the bottom height of the adjusting block 12 by adjusting the height of the elastic pressing part 12.2.

[0018] like Figure 2 and 3 As shown, the upper pressure block 13 is located on the front side of the adjusting block 12. The upper pressure block 13 and the adjusting block 12 are separated by an upper film channel 17 that is open from top to bottom and is used to guide the film into the top surface of the plastic panel. Specifically, the upper pressure block 13 has a second longitudinal elongated hole that is open from front to back at both ends. A second screw is inserted into the second longitudinal elongated hole at both ends. The second screws at both ends are screwed into the third screw holes that are correspondingly provided on the front of the two side plates 11.4, so as to lock and fix the upper pressure block 13 onto the two side plates 11.4 and make the height of the upper pressure block 13 adjustable.

[0019] like Figure 2 and 3 As shown, the lower pressure block 14 is located on the front side of the lower mold 11.2. The lower pressure block 14 and the lower mold 11.2 are separated by a lower film channel 18 that is open at the top and bottom and is used to guide the film into the bottom surface of the plastic panel. Specifically, the lower pressure block 14 has a third longitudinal long hole that is open 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 that is provided on the front of the two side plates 11.4 respectively, so as to lock the lower pressure block 14 onto the two side plates 11.4 and make the height of the lower pressure block 14 adjustable.

[0020] like Figures 4 to 6As shown, the front shaping mold 21 is located on the rear side of the die 11, and the rear shaping mold 22 is located on the rear side of the front shaping mold 22. The front shaping mold 21 and the rear shaping mold 22 are located at a distance from each other on the top of the same base plate 23 and are both fixed to the base plate 23 by bolts. Both the front shaping mold 21 and the rear shaping mold 22 are rectangular blocks with equal length, width, and height. The front shaping mold 21 has a front shaping channel 21.1 that runs through and connects to the forming channel 11.3. The rear shaping mold 22 has a rear shaping channel 22.1 that runs through and connects to the front shaping channel 21.1. Both the front shaping channel 21.1 and the rear shaping channel 22.1 are horizontally flat holes with the same horizontal width, vertical height, and lowest point height. The top and bottom surfaces of the front shaping channel 21.1 are concave arc surfaces that curve upwards to the left and right, while the left and right sides are flat surfaces. The top and bottom surfaces, as well as the left and right sides of the rear shaping channel 22.1, are flat surfaces. The front shaping mold 21 has front air holes on both sides for connecting the front shaping channel 21.1 and the cooling device, and the rear shaping mold 22 has rear air holes on both sides for connecting the rear shaping channel 22.1 and the cooling device.

[0021] like Figure 7 As shown, the plastic panel forming method using the above-mentioned plastic panel forming apparatus is as follows:

[0022] S1. Connect the hot melt adhesive inlet mold 11.5 to the extruder. The extruder melts the ABS plastic and forms it into a plastic panel through the forming channel 11.3 of the inlet mold 11 of the hot melt adhesive inlet mold 11.5.

[0023] S2, The plastic panel that will come out of the panel outlet is led out between the upper pressure block 13 and the lower pressure block 14;

[0024] S3. The upper film on one film release roller is sequentially led out through the upper film channel 17 and the bottom of the upper pressure block 13 so that the upper film is attached to the top surface of the plastic panel. At the same time, the lower film on another film release roller is sequentially led out through the lower film channel 18 and the top of the lower pressure block 14 so that the lower film is attached to the bottom surface of the plastic panel, thereby simultaneously completing the forming and double-sided lamination of the plastic panel.

[0025] S4. The plastic panel with both the top and bottom surfaces covered with film is led out sequentially along the front shaping channel 21.1 and the rear shaping channel 22.1.

[0026] Because the bottom surface of the front shaping channel 21.1 is a concave arc surface, the left and right sides of the ABS plastic panel will not bend irregularly downwards under the support of the front shaping channel 21.1, so that the stress of each part is uniform and does not deform. After the initial cooling of the front shaping mold 21, the ABS plastic panel that has completed the initial shaping is not easy to deform again. Therefore, the shaping can be completed by secondary cooling through the straight rear shaping channel 22.1.

[0027] The height of the adjustment port 15 can be adjusted by adjusting the height of the adjustment block 12, thereby adjusting the thickness of the plastic panel. The height of the elastic part 12.2 at the bottom of the adjustment block 12 can also be adjusted by adjusting the screw 16 to achieve fine adjustment of the height of the adjustment port 15. In addition, by adjusting the height of the upper pressure block 13 and the lower pressure block 14, the film can be adhered more tightly to the plastic panel.

Claims

1. An in-mold double-sided film coating integrated molding device for ABS plastic panels, characterized in that: The assembly includes a molding module (10) and a shaping module (20). The molding module (10) includes a die (11), and the shaping module (20) includes a front shaping mold (21). The front shaping mold (21) is located behind the die (11). The die (11) has a molding channel (11.3) that runs through the front and back. The front shaping mold (21) has a front shaping channel (21.1) that runs through the front and back and connects to the molding channel (11.3). The molding channel (11.3) is a horizontal flat hole for outputting flat plastic panels. The front shaping channel (21.1) is a horizontal flat hole and its bottom surface is a concave arc surface that is low in the middle and high on the left and right sides.

2. The ABS plastic panel in-mold double-sided film coating integral molding device according to claim 1, characterized in that: The die (11) includes an upper die (11.1), a lower die (11.2) and two side plates (11.4). The two side plates (11.4) are enclosed on the left and right sides of the upper die (11.1) and the lower die (11.2) and are fixedly connected to the upper die (11.1) and the lower die (11.2) to form a molding channel (11.3) between the upper die (11.1) and the lower die (11.2). The front opening of the molding channel (11.3) is set as the panel outlet and the rear opening is set as the hot melt adhesive inlet. The front part of the lower die (11.2) protrudes from the front of the upper die (11.1). The front end of the upper die (11.1) is provided with an adjustment block (12). The bottom height of the adjustment block (12) can be adjusted relative to the front protrusion of the lower die (11.2) so as to adjust the thickness of the plastic panel by adjusting the height of the panel outlet.

3. The ABS plastic panel in-mold double-sided film coating integrated molding device according to claim 2, characterized in that: The adjusting block (12) includes a body (12.1). The body (12.1) has a first longitudinal long hole that is connected to the front and back. A first screw passes through the first longitudinal long hole. The first screw hole is screwed to the first screw hole corresponding to the front end of the upper mold (11.1) so as to lock the adjusting block (12) onto the upper mold (11.1) and make the height of the entire adjusting block (12) adjustable.

4. The ABS plastic panel in-mold double-sided film coating integrated molding device according to claim 3, characterized in that: The bottom of the main body (12.1) is bent forward horizontally to form an elastic pressing part (12.2). A screw seat (12.3) is provided on the main body (12.1) above the elastic pressing part (12.2). A second screw hole with the top and bottom connected is provided on the screw seat (12.3). An adjusting screw (16) is screwed into the second screw hole. The bottom end of the adjusting screw (16) is aligned with the front of the elastic pressing part (12.2) so as to realize the individual adjustment of the bottom height of the adjusting block (12) by adjusting the height of the elastic pressing part (12.2).

5. The ABS plastic panel in-mold double-sided film coating integral molding device according to claim 4, characterized in that: An upper pressure block (13) is provided on the front side of the adjusting block (12). The upper pressure block (13) and the adjusting block (12) are separated by an upper film channel (17) that is connected from top to bottom and used to guide the film into the top surface of the plastic panel.

6. The ABS plastic panel in-mold double-sided film coating integral molding device according to claim 5, characterized in that: The upper pressure block (13) has a second longitudinal long hole that is connected to the front and 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 (11.4) to lock the upper pressure block (13) onto the two side plates (11.4) and to make the height of the upper pressure block (13) adjustable.

7. The ABS plastic panel in-mold double-sided film coating integrated molding device according to claim 2, characterized in that: The lower mold (11.2) is also provided with a lower pressure block (14) on the front side. The lower pressure block (14) is separated from the lower mold (11.2) by a lower film channel (18) that is connected from top to bottom and is used to guide the film into the bottom surface of the plastic panel.

8. The ABS plastic panel in-mold double-sided film coating integral molding device according to claim 7, characterized in that: The lower pressure block (14) has a third longitudinal long hole that is connected from front to 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 (11.4) respectively, so as to lock the lower pressure block (14) onto the two side plates (11.4) and make the height of the lower pressure block (14) adjustable.

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