PETG (polyethylene terephthalate glycol) production process applied to decorative film and hot pasting production device

Abstract

The invention relates to a PETG (polyethylene terephthalate glycol) production process and hot pasting production device applied to a decorative film, the PETG production process comprises a bottom plate and an upper plate, the upper plate and the bottom plate are connected through a fourth support rod, a third support rod is arranged on the bottom plate, a third support plate is arranged on the third support rod, and a wood veneer is arranged on the third support plate; two first air cylinders are arranged on the upper plate, and spring telescopic rods are arranged at the output ends of the first air cylinders through supporting assemblies. When a push plate slowly pushes a decorative film in the opposite direction, tiny bubbles between the decorative film and a wood veneer can be effectively extruded out, the process is crucial, and due to the existence of the bubbles, the overall film pasting effect can be damaged, and the firmness and durability of the decorative film can be possibly affected. Bubbles can be efficiently removed from the surface of the film through movement of the push plate, and it is ensured that the final laminating effect is smooth and firm.

Description

Technical Field

[0001] The invention belongs to the technical field of PETG decorative film heat-stamping production, and relates to a PETG production process and a heat-stamping production device applied to decorative films. Background Art

[0002] PETG film is a new type of high-tech building decoration material. Its high-quality characteristics completely solve the many defects of traditional materials in the process of processing and use. It can better reflect energy conservation and environmental protection and create a low-carbon living environment. It is a truly green and environmentally friendly product. In the production process of PETG decorative film, the PETG decorative film needs to be hot-stuck to the surface of the object;

[0003] Existing PETG decorative film hot-sticking production equipment generally adopts the hot pressing method to directly hot-press the PETG decorative film onto the surface of an object. However, during the hot pressing, bubbles are easily generated at the contact surface between the PETG decorative film and the surface of the object, which reduces its quality and affects production efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a PETG production process and a heat-sealing production device for decorative films, which can solve the problems raised by the background technology.

[0005] According to the technical solution provided by the present invention: a PETG hot-stamping production device for decorative film includes a bottom plate and an upper plate, wherein the upper plate and the bottom plate are connected via a fourth support rod, a third support rod is provided on the bottom plate, a third support plate is provided on the third support rod, and a wood veneer panel is provided on the third support plate;

[0006] The upper plate is provided with two first cylinders, the output end of the first cylinder is provided with a spring telescopic rod through a support assembly, the lower end of the spring telescopic rod is provided with a connecting block, a reciprocating screw rod is provided between the two connecting blocks, a sliding rod is provided between the other two connecting blocks, two sliding caps are provided on the sliding rod and the reciprocating screw rod respectively, and a push plate is provided on the sliding cap;

[0007] A gear is sleeved on the reciprocating screw rod, and a rack is meshed on the outer side of the gear. The rack is L-shaped, and one end away from the gear is connected to the support assembly.

[0008] Preferably, the support assembly includes a second support plate and a pressure plate; one end away from the gear is connected to the second support plate, the second support plate is installed on the output end of the first cylinder, and a pressure plate is commonly provided between opposite ends of the second support plate.

[0009] Preferably, a second cylinder is provided on the second supporting plate, a push rod is provided at the output end of the second cylinder, a roller is provided at the lower end of the push rod, and a heating rod is provided inside the roller.

[0010] Preferably, the base plate is provided with a first support rod, one of the first support rods is provided with a circular hole, and the other first support rod is provided with an arc-shaped groove, a circular ring is rotatably provided in the circular hole, a winding roller is provided in the circular ring, and the other end of the winding roller is sleeved with a shaft sleeve located in the groove, and a bolt is also provided in the circular ring, which is threadedly connected to one end of the winding roller, and a decorative film is provided on the winding roller.

[0011] Preferably, a second support rod is provided on the bottom plate, a first support plate is provided on the second support rod, a groove is provided on the first support plate, and at least two roller rods are rotatably provided in the groove.

[0012] Preferably, a concave plate is provided on the first supporting plate, a cleaning plate is provided inside the concave plate, and the lower end of the cleaning plate is made of flexible material.

[0013] Preferably, the cleaning plate is provided with a screw connecting plate, both ends of which are slidably connected to the inner wall of the concave plate, and a screw is rotatably provided at the upper end of the screw connecting plate, the upper end of the screw extends out of the concave plate and is threadedly connected to the concave plate.

[0014] Preferably, two limiting strips are provided on the third supporting plate.

[0015] A PETG production process for decorative film comprises the following steps:

[0016] S1. First, slide the wood veneer panel along the roller rod on one side and push it between the two limit strips. When the roller rod slides, the upper end surface of the wood veneer panel contacts the lower end of the cleaning plate to clean the surface of the wood veneer panel; then pull the decorative film to lay one end of the decorative film flat on the upper end of the wood veneer panel.

[0017] S2. The two first cylinders move downward simultaneously, driving the second support plate to move downward. As the second support plate moves downward, the lower end of the push plate contacts the decorative film on the upper end of the wood veneer panel.

[0018] S3. As the first cylinder moves downward, the second support plate continues to move downward under the action of the spring telescopic rod, and the rack meshes with the gear and drives the gear to rotate; during the rotation of the gear, the sliding cap meshing with it is driven to move in the opposite direction, thereby driving the two push plates to move in the opposite direction, so as to push the decorative film so that the decorative film fits the wood veneer panel.

[0019] S4. When the push plate moves out from both ends of the wood veneer panel, the second support plate continues to move downward, and the pressure plate fits the upper end of the wood veneer panel, and then the second cylinder is started, so that the second cylinder drives the roller to move on the wood veneer panel.

[0020] The positive effects of this application are:

[0021] The PETG production process and heat-sealing production device for decorative films provided in the embodiments of the present invention have the following advantages:

[0022] 1. The two push plates run in opposite directions, ensuring that the decorative film can be evenly spread out when being pushed, extending from the central area to both sides, so as to accurately cover the surface of the wood veneer. This push plate running in opposite directions not only ensures that the decorative film can be closely attached to every detail of the wood veneer, but also avoids wrinkles or misalignment problems that may be caused by pushing in one direction;

[0023] When the push plate slowly pushes the decorative film in the opposite direction, it helps to effectively squeeze out the tiny bubbles between the decorative film and the wood veneer. This process is crucial because the presence of bubbles will not only destroy the overall film effect, but also may affect the firmness and durability of the decorative film. The movement of the push plate can effectively remove bubbles from the film surface, ensuring that the final bonding effect is both flat and firm. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a perspective view of the present invention.

[0025] Figure 2 yes Figure 1 A magnified view of the structure at A.

[0026] Figure 3 It is a front view of the present invention.

[0027] Figure 4 It is a side view of the present invention.

[0028] Figure 5 It is a rear view stereogram of the figure.

[0029] Figure 6 It is a connection schematic diagram of the bottom plate, support rods and upper plate of the present invention.

[0030] In the figure: bottom plate 1; first support rod 11; decorative film 13; ring 14; bolt 15; sleeve 16; second support rod 2; first support plate 21; roller rod 22; concave plate 3; screw rod 31; screw rod connecting plate 32; cleaning plate 33; spring telescopic rod 4; connecting block 41; reciprocating screw rod 42; sliding rod 43; gear 44; rack 45; sliding cap 46; push plate 47; second support plate 5; pressing plate 51; third support rod 6; third support plate 61; limit strip 62; fourth support rod 7; upper plate 71; first cylinder 72; second cylinder 73; push rod 74; roller 75; heating rod 76; wood veneer panel 8. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0033] like Figure 1-6 As shown, the present invention is a PETG hot-stamping production device for decorative film, comprising a bottom plate 1 and an upper plate 71, wherein the upper plate 71 is connected to the bottom plate 1 via a fourth support rod 7, a third support rod 6 is disposed on the bottom plate 1, a third support plate 61 is disposed on the third support rod 6, and a wood veneer panel 8 is disposed on the third support plate 61;

[0034] Two first cylinders 72 are provided on the upper plate 71, and a spring telescopic rod 4 is provided at the output end of the first cylinder 72 through a supporting assembly, and a connecting block 41 is provided at the lower end of the spring telescopic rod 4, wherein a reciprocating screw rod 42 is provided between two connecting blocks 41, and a sliding rod 43 is provided between the other two connecting blocks 41, and two sliding caps 46 are provided on the sliding rod 43 and the reciprocating screw rod 42, respectively, and a push plate 47 is provided on the sliding cap 46;

[0035] The reciprocating screw rod 42 is sleeved with a gear 44 , and a rack 45 is meshed on the outer side of the gear 44 . The rack 45 is L-shaped, and one end away from the gear 44 is connected to the support assembly.

[0036] The first cylinder 72 moves downward, and the spring telescopic rod 4 is initially in a stretched state. When the first cylinder 72 descends, the push plate 47 contacts the surface of the decorative film 13. At this time, the decorative film 13 and the wood veneer panel 8 give a supporting force to the spring telescopic rod 4. At this time, the first cylinder 72 continues to move downward, and the rack 45 meshes with the gear 44, driving the gear 44 to rotate;

[0037] The two push plates 47 run in opposite directions, ensuring that the decorative film 13 can be evenly spread out when being pushed, extending from the central area to both sides, so as to accurately cover the surface of the wood veneer panel 8. Such push plates running in opposite directions not only ensure that the decorative film can be closely attached to every detail of the wood veneer panel, but also avoid wrinkles or misalignment problems that may be caused by unidirectional pushing;

[0038] More importantly, when the push plate 47 slowly pushes the decorative film 13 in the opposite direction, it helps to effectively squeeze out the tiny bubbles between the decorative film and the wood veneer panel. This process is crucial because the presence of bubbles will not only destroy the overall film-sticking effect, but also may affect the firmness and durability of the decorative film. The movement of the push plate 47 can effectively remove the bubbles from the film surface, ensuring that the final bonding effect is both smooth and firm;

[0039] It not only significantly improves the efficiency of film pasting, making the entire operation process smoother and faster, but more importantly, it fundamentally improves the quality of film pasting, and the decorative film 13 and the wood veneer panel 8 fit tightly together, in a perfect state without bubbles or wrinkles.

[0040] Preferably, the support assembly includes a second support plate 5 and a pressing plate 51; one end away from the gear 44 is connected to the second support plate 5, the second support plate 5 is installed on the output end of the first cylinder 72, and a pressing plate 51 is provided between the opposite ends of the second support plate 5; when the pressing plate 51 moves downward, it fits with the surface of the wood veneer panel 8, so that when the roller 75 rolls the decorative film 13, the pressing plate 51 plays a role in protecting the decorative film 13, avoiding direct contact between the roller 75 and the decorative film 13, thereby reducing scratches or damage caused by friction;

[0041] At the same time, the pressing plate 51 can ensure the uniform distribution of the decorative film 13 on the surface of the wood veneer panel 8, avoiding local wrinkles or bubbles during the bonding process. The back and forth pressing of the roller 75 on the pressing plate 51 further enhances the uniformity of the bonding, so that the glue between the decorative film 51 and the surface of the wood veneer panel 8 can be evenly distributed to form a tight fit.

[0042] Under the action of heating and pressing, the air between the pressing plate 51 and the surface of the wood veneer panel 8 and the bubbles in the glue can be discharged more effectively, which helps to reduce bubbles and gaps after bonding and improve the bonding quality.

[0043] The combination of the pressing plate 51 and the roller 75 can realize rapid lamination of large-area workpieces, which not only improves work efficiency, but also ensures the consistency of lamination quality and reduces errors caused by manual operation.

[0044] Preferably, a second cylinder 73 is provided on the second support plate 5, a push rod 74 is provided at the output end of the second cylinder 73, a roller 75 is provided at the lower end of the push rod 74, and a heating rod 76 is provided inside the roller 75; the first cylinder 72 moves downward to make the roller 75 decorate the surface of the film 13, and then the heating rod 76 is started to heat the roller 75, and then the second cylinder 73 makes the heated roller 75 roll on the surface of the decorative film 13, and then the surface of the decorative film 13 is thermally bonded, so that the decorative film 13 and the surface of the wood veneer panel 8 are rolled by the roller 15, so that no bubbles are generated when the decorative film 13 and the surface of the wood veneer panel 8 are thermally bonded, thereby improving the production quality.

[0045] Preferably, a first support rod 11 is provided on the base plate 1, a circular hole is opened on one of the first support rods 11, and an arc-shaped groove is opened on the other first support rod. A circular ring 14 is rotatably provided in the circular hole, a winding roller is provided in the circular ring 14, and the other end of the winding roller is sleeved with a shaft sleeve 16 located in the groove. A bolt 15 is also provided in the circular ring 14, and the bolt 15 is screwed to one end of the winding roller, and a decorative film 13 is provided on the winding roller; by rotating the bolt 15, the decorative film 13 can be removed as a whole, and at the same time, the arrangement of the circular ring 14 and the shaft sleeve 16 facilitates the rotation of the decorative film 13.

[0046] Preferably, a second support rod 2 is provided on the base plate 1, and a first support plate 21 is provided on the second support rod 2. A groove is opened on the first support plate 21, and at least two roller rods 22 are rotatably provided in the groove; the roller rods 22 are not only smooth and wear-resistant, but also flexible in rotation, which provides great convenience for the sliding of the wood veneer panel 8. When the wood veneer panel is placed on the roller rods 22, it can slide smoothly along the roller rods 22 with a light push, without the need for laborious carrying or dragging, which not only improves work efficiency, but also greatly reduces the labor intensity of operators; at the same time, the rotation characteristics of the roller rods 22 can also effectively reduce the friction between the wood veneer panel and the supporting structure, thereby avoiding scratches or damage caused by friction, and protecting the integrity and aesthetics of the wood veneer panel.

[0047] Preferably, a concave plate 3 is provided on the first support plate 21, and a cleaning plate 33 is provided inside the concave plate 3. The lower end of the cleaning plate 33 is made of a flexible material to protect the upper end of the wood veneer panel 8 to prevent scratching of the wood veneer panel 8;

[0048] The cleaning plate 33 is provided with a screw connecting plate 32, both ends of which are slidably connected with the inner wall of the concave plate 3, and the upper end of the screw connecting plate 32 is rotatably provided with a screw 31, the upper end of the screw 31 extends out of the concave plate 3 and is screwed with the concave plate 3;

[0049] By setting the cleaning plate 33, when it contacts the wood veneer panel 8, it can effectively clean the impurities on the surface of the wood veneer panel 8, such as dust, debris, etc., thereby ensuring the cleanliness of the wood veneer panel 8. This step is very important for the subsequent attachment of the decorative film, because only by ensuring the cleanliness of the wood veneer panel 8 can it be ensured that the decorative film 13 will not generate bubbles during the attachment process, thereby improving the overall decorative effect and aesthetics;

[0050] The setting of the screw rod 31 adds great flexibility and applicability to the entire device. By rotating the screw rod 31, the distance between the cleaning plate 33 and the wood veneer panel 8 can be adjusted. This function enables the device to easily cope with wood veneer panels 8 of different specifications and thicknesses, greatly improving its scope of application and practicality. Whether dealing with thin or thick wood veneer panels, the best cleaning effect can be achieved through simple adjustment, laying a solid foundation for the subsequent decorative film attachment work.

[0051] Preferably, two limit strips 62 are provided on the third support plate 61 to limit the positions of the two ends of the wood veneer panel 8 to prevent displacement or shaking during the attachment process, which not only improves the attachment efficiency of the decorative film 13, but also virtually improves the overall work quality. Because only when the wood veneer panel 8 remains stable can the operator focus more on the attachment of the decorative film, thereby avoiding problems such as uneven attachment and bubbles caused by the movement of the wood veneer panel.

[0052] The steps include:

[0053] S1. First, slide the wood veneer panel 8 along the roller rod 22 on one side and push it between the two limit strips 62. When the wood veneer panel 8 slides on the roller rod 22, the upper end surface of the wood veneer panel 8 contacts the lower end of the cleaning plate 33 to clean the surface of the wood veneer panel 8; then, pull the decorative film 13 to lay one end of the decorative film 13 flat on the upper end of the wood veneer panel 8.

[0054] S2. The two first cylinders 72 move downward simultaneously, driving the second support plate 5 to move downward. As the second support plate 5 moves downward, the lower end of the push plate 47 contacts the decorative film 13 on the upper end of the wood veneer panel 8 .

[0055] S3. As the first cylinder 72 moves downward, the second support plate 5 continues to move downward under the action of the spring telescopic rod 4, and the rack 45 is also meshed with the gear 44, driving the gear 44 to rotate; during the rotation of the gear 44, the sliding cap 46 meshed with it is driven to move in the opposite direction, thereby driving the two push plates 47 to move in the opposite direction, so as to push the decorative film 13, so that the decorative film 13 is fitted with the wood veneer panel 8.

[0056] S4. When the push plate 47 moves out from both ends of the wood veneer panel 8, the second support plate 5 continues to move downward, and the pressing plate 51 fits the upper end of the wood veneer panel 8, and then the second cylinder 73 is started, so that the second cylinder 73 drives the roller 75 to move on the wood veneer panel 8:

[0057] It is to be understood that the above embodiments are merely exemplary embodiments used to illustrate the principles of the present invention, but the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also considered to be within the scope of protection of the present invention.

Claims

1. A PETG heat transfer production device for decorative films, characterized in that: It comprises a bottom plate (1) and an upper plate (71), wherein the upper plate (71) and the bottom plate (1) are connected via a fourth support rod (7), a third support rod (6) is provided on the bottom plate (1), a third support plate (61) is provided on the third support rod (6), and a wood veneer panel (8) is provided on the third support plate (61); Two first cylinders (72) are provided on the upper plate (71), and a spring telescopic rod (4) is provided at the output end of the first cylinder (72) through a supporting assembly, and a connecting block (41) is provided at the lower end of the spring telescopic rod (4), wherein a reciprocating screw rod (42) is provided between the two connecting blocks (41), and a sliding rod (43) is provided between the other two connecting blocks (41), and two sliding caps (46) are respectively provided on the sliding rod (43) and the reciprocating screw rod (42), and a push plate (47) is provided on the sliding cap (46); The reciprocating screw rod (42) is sleeved with a gear (44), the outer side of the gear (44) is meshed with a rack (45), the rack (45) is L-shaped, and one end away from the gear (44) is connected to the support assembly.

2. A PETG heat transfer production device for decorative films as claimed in claim 1, characterized in that: The support assembly comprises a second support plate (5) and a pressure plate (51); an end away from the gear (44) is connected to the second support plate (5), the second support plate (5) is mounted on the output end of the first cylinder (72), and a pressure plate (51) is provided between opposite ends of the second support plate (5).

3. A PETG heat-stamping production device for decorative film according to claim 1, characterized in that: A second cylinder (73) is provided on the second support plate (5), a push rod (74) is provided at the output end of the second cylinder (73), a roller (75) is provided at the lower end of the push rod (74), and a heating rod (76) is provided inside the roller (75).

4. A PETG heat-stamping production device for decorative film according to claim 1, characterized in that: The bottom plate (1) is provided with a first support rod (11), one of the first support rods (11) is provided with a circular hole, the other first support rod is provided with an arc-shaped groove, a circular ring (14) is rotatably provided in the circular hole, a winding roller is provided in the circular ring (14), the other end of the winding roller is sleeved with a shaft sleeve (16) located in the groove, a bolt (15) is also provided in the circular ring (14), the bolt (15) is screwed to one end of the winding roller, and a decorative film (13) is provided on the winding roller.

5. A PETG heat transfer production device for decorative film as claimed in claim 1, characterized in that: The bottom plate (1) is provided with a second support rod (2), the second support rod (2) is provided with a first support plate (21), the first support plate (21) is provided with a groove, and at least two roller rods (22) are rotatably provided in the groove.

6. A PETG heat-stamping production device for decorative film as claimed in claim 5, characterized in that: A concave plate (3) is provided on the first support plate (21), a cleaning plate (33) is provided inside the concave plate (3), and the lower end of the cleaning plate (33) is made of a flexible material.

7. A PETG heat transfer production device for decorative films as claimed in claim 6, characterized in that: The cleaning plate (33) is provided with a screw connecting plate (32), the two ends of the screw connecting plate (32) are slidably connected to the inner wall of the concave plate (3), the upper end of the screw connecting plate (32) is rotatably provided with a screw (31), the upper end of the screw (31) extends out of the concave plate (3) and is screwed to the concave plate (3).

8. A PETG heat transfer production device for decorative films as claimed in claim 1, characterized in that: The third support plate (61) is provided with two limiting strips (62).

9. A PETG production process for decorative films, using a PETG heat transfer production device for decorative films as claimed in any one of claims 1 to 8, characterized in that: The steps include: S1. First, slide the wood veneer panel (8) along the roller rod (22) on one side and push it between the two limit strips (62). When the wood veneer panel (8) slides on the roller rod (22), the upper end surface of the wood veneer panel (8) contacts the lower end of the cleaning plate (33) to clean the surface of the wood veneer panel (8); then, pull the decorative film (13) to lay one end of the decorative film (13) flat on the upper end of the wood veneer panel (8). S2. The two first cylinders (72) move downward simultaneously, driving the second support plate (5) to move downward. As the second support plate (5) moves downward, the lower end of the push plate (47) contacts the decorative film (13) at the upper end of the wood veneer panel (8). S3. As the first cylinder (72) moves downward, the second support plate (5) continues to move downward under the action of the spring telescopic rod (4), and the rack (45) also meshes with the gear (44) and drives the gear (44) to rotate; during the rotation of the gear (44), the sliding cap (46) meshed with it is driven to move in the opposite direction, thereby driving the two push plates (47) to move in the opposite direction, so as to push the decorative film (13) so that the decorative film (13) and the wood veneer panel (8) are fitted. S4. When the push plate (47) moves out from both ends of the wood veneer panel (8), the second support plate (5) continues to move downward, and the pressing plate (51) is in contact with the upper end of the wood veneer panel (8), and then the second cylinder (73) is started, so that the second cylinder (73) drives the roller (75) to move on the wood veneer panel (8).

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