A high-precision die-cutting and laminating device and automatic laminating method

Abstract

The present invention relates to a high-precision die-cutting and laminating device and an automatic laminating method, belonging to the technical field of film die-cutting and laminating. The high-precision die-cutting and laminating device includes a body, a sliding body, a guide wheel, a flattening mechanism, and a driving member. The sliding body is provided with two sliding bodies, which are relatively slidably arranged on the body and located on opposite sides of a flexible material strip. The guide wheels correspond one to one with the sliding bodies, and the guide wheels are rotatably arranged on the corresponding sliding bodies. The guide wheels are used to abut against the edges of the flexible material strip, the flattening mechanism is used to drive the flexible material strip at the guide wheels to maintain flatness, and the driving member is used to drive the sliding bodies to drive the guide wheels to move. The present invention has the effect of preventing wrinkles from forming on the edges of the flexible material strip, thereby ensuring the quality of die-cutting and laminating to a certain extent.

Description

Technical Field

[0001] The present invention relates to the technical field of film die-cutting and laminating, and in particular to a high-precision die-cutting and laminating device and an automatic laminating method. Background Art

[0002] Die-cutting and laminating technology is widely used in packaging, electronics, medical and other fields. For example, in the production process of electronic substrates, in order to protect the electronic substrates, a die-cutting and laminating device is required to stick a layer of flexible optical film on the surface of the electronic substrate, and then the film-sticking product is cut to obtain independent products with optical films.

[0003] Currently, alignment of the web during die-cutting and laminating is primarily achieved by installing stoppers on either side of the web on the machine body. These stoppers move to correct the web's position, achieving the desired position. When processing flexible webs such as film, using stoppers to limit contact with the web's edges can easily cause wrinkles, impacting die-cutting and laminating quality. Summary of the Invention

[0004] In order to prevent wrinkles from forming on the edges of the flexible material strip and to ensure the die-cutting and laminating quality to a certain extent, the present invention provides a high-precision die-cutting and laminating device and an automatic laminating method.

[0005] In a first aspect, the present invention provides a high-precision die-cutting and laminating device, which adopts the following technical solution:

[0006] A high-precision die-cutting and laminating device, comprising:

[0007] body;

[0008] Sliding bodies, wherein two sliding bodies are provided, and the two sliding bodies are relatively slidably arranged on the machine body, and the two sliding bodies are located on opposite sides of the flexible material strip;

[0009] Guide wheels, each corresponding to a sliding body, rotatably disposed on the corresponding sliding body, and configured to abut against an edge of the flexible material strip;

[0010] A flattening mechanism, the flattening mechanism is used to drive the flexible material strip at the guide wheel to remain flat;

[0011] A driving member is used to drive the sliding body to drive the guide wheel to move.

[0012] Preferably, the guide wheel includes a guide column and a fixed plate. The guide column is rotatably arranged on the corresponding sliding body along the vertical direction. Two fixed plates are provided. The two fixed plates are relatively arranged at both ends of the guide column. The outer wall of the guide column is used to abut against the edge of the flexible material strip. The two fixed plates are located on the upper and lower sides of the flexible material strip.

[0013] Preferably, a fixed column is provided on the sliding body, and the guide column and the fixed plate are rotatably sleeved on the corresponding fixed column. The flattening mechanism includes a gas input pipe provided on the fixed column and a conveying channel provided in the fixed column. The gas input pipe is connected to an external wind source, and the conveying channel is connected to the gas input pipe. A cavity is provided in each of the fixed plates, and the cavity is provided along the circumference of the fixed column, and the cavity is connected to the conveying channel. A plurality of air outlet holes are provided on a side of the fixed plate close to the flexible material strip, and the air outlet holes are connected to the corresponding cavity.

[0014] Preferably, the conveying channel includes an input section and a distribution section, one end of the input section is connected to the gas input pipe, and the other end is connected to the distribution section, the distribution section has two air outlets, the air outlets correspond one-to-one to the fixed plates, the air outlets are connected to the cavity in the corresponding fixed plate, and the two air outlets are equidistant from the position where the input section and the distribution section are connected.

[0015] Preferably, a wind limiting group is provided on the fixed column, and the wind limiting group corresponds one-to-one to the cavity. Each group of the wind limiting groups includes a wind limiting plate provided on opposite sides of the fixed column, and the wind limiting plate extends into the corresponding cavity. The gap between the wind limiting plate and the inner wall of the corresponding cavity is less than 1 mm.

[0016] Preferably, the arrangement direction of the two wind limiting plates in each wind limiting group is parallel to the conveying direction of the flexible material strip.

[0017] Preferably, the diameter of the air outlet is less than 1 mm.

[0018] Preferably, the guide post is covered with an elastic layer, and the elastic layer is used to abut against the edge of the flexible material strip.

[0019] Preferably, the driving member includes a cylinder provided on the machine body, the cylinder corresponds to the sliding body one-to-one, and the sliding body is connected to the piston rod of the corresponding cylinder.

[0020] In a second aspect, the present invention provides an automatic lamination method, which adopts the following technical solution:

[0021] An automatic laminating method, using the high-precision die-cutting and laminating device, comprises the following steps:

[0022] The material belt is conveyed and slid onto the guide wheels on both sides, driving the guide wheels to rotate;

[0023] When the driving member drives the sliding body to drive the guide wheel to move to correct the material strip, the flattening mechanism drives the flexible material strip at the guide wheel to remain flat;

[0024] The material strip is then conveyed to the laminating area for lamination or to the die-cutting area for slitting.

[0025] In summary, the present invention has the following beneficial technical effects:

[0026] 1. During the conveying process of the flexible strip, the edge of the strip slides against the guide wheel. Since the guide wheel can rotate, the friction force on the edge of the flexible strip is small. When the position of the strip needs to be adjusted for positioning, the driving member is started, and the two sliding bodies are driven by the driving member to move synchronously in the required direction. Then, the guide wheel on the sliding body drives the flexible strip to move. At this time, the flattening mechanism drives the flexible strip at the guide wheel to remain flat, so that wrinkles are not easily formed on the edge of the flexible strip, which ensures the die-cutting and laminating quality to a certain extent.

[0027] 2. When the sliding body moves, the external blower is started to deliver air to the gas input pipe. The air enters the delivery channel through the gas input pipe, and then enters the cavities of the two corresponding fixed plates. Then the air flow is ejected from multiple air outlets, so that the upper and lower sides of the edge of the flexible strip are evenly subjected to wind pressure, which helps to keep the surface of the flexible strip flat and not prone to wrinkles. At the same time, it can also be applied to strips of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0029] Figure 2 It is a schematic diagram of the overall structure of the guide wheel on one side of the material belt in an embodiment of the present invention.

[0030] Figure 3 It is a sectional view of the overall structure of the guide wheel in an embodiment of the present invention.

[0031] Figure 4 2 is another cross-sectional view of the guide wheel in the embodiment of the present invention.

[0032] Explanation of the accompanying symbols: 1. Machine body; 2. Sliding body; 3. Guide wheel; 31. Guide column; 32. Fixed plate; 4. Fixed column; 5. Gas input pipe; 6. Conveying channel; 61. Input section; 62. Distribution section; 7. Cavity; 8. Air outlet; 9. Air outlet; 10. Air limiting group; 101. Air limiting plate; 11. Cylinder; 12. Vertical plate; 13. Guide rail. DETAILED DESCRIPTION

[0033] The following combination Figure 1-Figure 4 The present invention is described in further detail.

[0034] The embodiment of the present invention discloses a high-precision die-cutting and laminating device. Figure 1 and Figure 2The high-precision die-cutting and laminating device includes a body 1, a sliding body 2, a guide wheel 3, a flattening mechanism, and a driving member. Two sliding bodies 2 are provided, and the two sliding bodies 2 are relatively slidably arranged on the body 1. The sliding direction of the sliding body 2 is perpendicular to the conveying direction of the material strip. The two sliding bodies 2 are located on opposite sides of the material strip. Specifically, to facilitate the sliding of the sliding body 2, two vertical plates 12 are fixed on the body 1 on both sides of the material strip. Guide rails 13 are fixedly mounted on both vertical plates 12. The guide rails 13 correspond to the sliding bodies 2 one by one. The length direction of the guide rails 13 is parallel to the moving direction of the sliding body 2. The sliding body 2 is slidably sleeved on the corresponding guide rails 13. The sliding body 2 can be in any of the following shapes: plate, strip, or block, and is not limited here. The driving member is provided on the vertical plate 12, and the driving member is used to drive the sliding body 2 to move.

[0035] Reference Figure 2 A fixed column 4 is fixed on each sliding body 2, and the fixed column 4 is arranged in the vertical direction. The guide wheel 3 corresponds to the sliding body 2 one by one. The guide wheel 3 is rotatably sleeved on the fixed column 4 of the corresponding sliding body 2 through a bearing. The rotation axis of the guide wheel 3 is arranged in the vertical direction. The guide wheel 3 is used to abut against the edge of the flexible material strip; the flattening mechanism is used to drive the flexible material strip at the guide wheel 3 to keep it flat.

[0036] During the transmission of the flexible material strip, the edge of the material strip slides against the guide wheel 3. Since the guide wheel 3 can rotate, the friction force on the edge of the flexible material strip is small, and it is not easy to cause wear of the material strip. When it is necessary to adjust the position of the material strip for positioning correction, the driving member is started, and the two sliding bodies 2 are driven by the driving member to move synchronously in the required direction. Then, when the guide wheel 3 on the sliding body 2 drives the flexible material strip to move, the flexible material strip at the guide wheel 3 is driven by the flattening mechanism to remain flat, so that it is not easy for the edge of the flexible material strip to form wrinkles, thereby improving the accuracy of die-cutting and fitting, and ensuring the die-cutting and fitting quality to a certain extent.

[0037] Specifically, the guide wheel 3 in the present invention can be installed before the material strip is laminated, or can be installed after laminating and before die-cutting. The installation position can be set by the operator as needed.

[0038] Reference Figure 2 To facilitate the movement of the sliding body 2, the driving member includes a cylinder 11. Each cylinder 11 corresponds to each sliding body 2 and is fixedly mounted on a corresponding vertical plate 12. The extension direction of the cylinder 11 is parallel to the sliding direction of the sliding body 2. The sliding body 2 is fixedly connected to the piston rod of the corresponding cylinder 11. Both cylinders 11 are electrically connected to the controller on the body 1. In other embodiments, the cylinders 11 can be replaced with electric cylinders, electric push rods, etc.

[0039] When it is detected that the material strip is deflected, the controller on the body 1 drives the two cylinders 11 to start, and the two cylinders 11 synchronously drive the corresponding sliding bodies 2 to move in the direction away from the deflection of the material strip, so that the material strip can be driven to move through the guide wheel 3 to correct the position of the material strip; using a controller for unified control helps to achieve synchronization of the two sliding bodies 2 and improve the accuracy of die-cutting and laminating.

[0040] Reference Figure 2 and Figure 3 In order to facilitate the limiting of the material strip, the guide wheel 3 includes a guide column 31 and a fixed plate 32. The guide column 31 is rotatably sleeved on the corresponding fixed column 4 in the vertical direction through a bearing. There are two fixed plates 32, and the two fixed plates 32 are relatively fixed at both ends of the guide column 31. The fixed plates 32 are also rotatably sleeved on the corresponding fixed columns 4, so that the longitudinal section of the guide wheel 3 is I-shaped. The outer wall of the guide column 31 is used to abut the edge of the flexible material strip. The two fixed plates 32 are located on the upper and lower sides of the flexible material strip, thereby providing sufficient space for the passage of the material strip and adapting to the passage of material strips of different thicknesses.

[0041] Reference Figure 2 and Figure 3 The outer wall of the guide post 31 is covered with an elastic layer (not shown). This elastic layer is used to abut against the edge of the flexible strip. Specifically, the elastic layer can be a polyurethane layer, a rubber layer, or the like, without limitation. Direct contact between the elastic layer and the edge of the flexible strip reduces frictional damage to the strip due to its low hardness, thus preventing wrinkles at the edge of the strip.

[0042] Reference Figure 2 and Figure 3 To facilitate the flattening of the flexible material strip at the guide wheel 3, the flattening mechanism includes a gas input pipe 5 and a delivery channel 6. The gas input pipe 5 is fixedly installed at the upper end of the fixed column 4 and is used to communicate with an external air source. Specifically, the gas input pipe 5 can be connected to an external blower to input airflow. The delivery channel 6 is arranged in the fixed column 4 and is connected to the gas input pipe 5. Each fixed plate 32 has a cavity 7, which is opened along the circumference of the fixed column 4 and passes through the inner wall of the fixed plate 32. The cavity 7 is connected to the delivery channel 6, so that gas can enter the cavity 7 through the gas input pipe 5 and the delivery channel 6. The fixed plate 32 has a plurality of air outlet holes 8 on the side close to the flexible material strip, and the air outlet holes 8 are connected to the corresponding cavities 7. Specifically, the plurality of air outlet holes 8 are arranged in multiple circles along the circumference of the fixed plate 32. The air outlet holes 8 on the upper and lower fixed plates 32 are aligned one by one. The diameter of the air outlet holes 8 is less than 1 mm, which helps to uniformly apply wind pressure to the surface of the flexible material strip.

[0043] When the sliding body 2 moves, the external blower is started to deliver air source to the gas input pipe 5. The air source enters the delivery channel 6 through the gas input pipe 5, and then enters the cavities 7 corresponding to the two fixed plates 32 respectively. Then the air flow is ejected from multiple air outlets 8, so that the upper and lower sides of the edge of the flexible material strip are evenly subjected to wind pressure, which helps to drive the surface of the flexible material strip to remain flat and not prone to wrinkles; at the same time, it can also be applied to material strips of different thicknesses.

[0044] In other embodiments, the gas input pipe 5 and the delivery channel 6 can also be replaced by a plurality of balls rollingly mounted on the fixed plate 32. The balls are located on the side of the fixed plate 32 close to the flexible material strip. The balls abut against the surface of the material strip. During the movement of the sliding body 2, the balls always clamp the edge of the material strip. Similarly, during the movement of the sliding body 2, it is not easy for the edge of the flexible material strip to wrinkle.

[0045] Reference Figure 2 and Figure 3 In order to facilitate the air flow to enter the two cavities 7 at the same time, the conveying channel 6 includes an input section 61 and a distribution section 62. The input section 61 is opened in the fixed column 4. The input section 61 is L-shaped. One end of the input section 61 is connected to the gas input pipe 5, and the other end is connected to the distribution section 62. The length direction of the distribution section 62 is parallel to the length direction of the fixed column 4. The distribution section 62 has two air outlets 9, which correspond one-to-one to the fixed plates 32. The air outlets 9 are aligned with the side where the material belt passes. The air outlets 9 are connected to the cavity 7 in the corresponding fixed plate 32. The input section 61 is connected to the middle part of the distribution section 62, and the distances between the two air outlets 9 and the connection point between the input section 61 and the distribution section 62 are equal.

[0046] The airflow entering the gas input pipe 5 is transported to the distribution section 62 through the input section 61, and then flows into the cavities 7 at both ends through the distribution section 62. Since the two air outlets 9 are at equal distances from the connection point between the input section 61 and the distribution section 62, the fixed plates 32 on the upper and lower sides of the material strip can simultaneously apply air pressure to the edge surface of the material strip to ensure the flatness of the flexible material strip.

[0047] Reference Figure 3 and Figure 4 In order to reduce gas loss, a limited wind group 10 is set on the fixed column 4. The wind limiting groups 10 correspond to the cavities 7 one by one. Each wind limiting group 10 includes two wind limiting plates 101. The two wind limiting plates 101 are relatively fixed on both sides of the fixed column 4. The arrangement direction of the two wind limiting plates 101 in each wind limiting group 10 is parallel to the conveying direction of the flexible material belt, so that the wind source can be reasonably blocked from flowing toward the cavity 7 on the side of the fixed plate 32 away from the material belt. The wind limiting plates 101 extend into the corresponding cavities 7, and the gap between the wind limiting plates 101 and the inner wall of the corresponding cavities 7 is less than 1 mm, which not only achieves the effect of blocking the airflow, but also is not easy to affect the rotation of the fixed plate 32.

[0048] The gas entering the cavity 7 from the air outlet 9 is blocked by the two wind limiting plates 101. Although the fixed plate 32 rotates continuously, most of the gas is still concentrated in the space of the cavity 7 aligned with the material strip, and then sprayed toward the material strip from the corresponding air outlet 8, which helps to reduce the gas ejected from the air outlet 8 on the side of the fixed plate 32 away from the material strip, thereby reducing gas loss and achieving energy saving.

[0049] The implementation principle of the embodiment of the present invention is: during the transmission of the flexible material strip, the edge of the material strip slides and abuts against the elastic layer on the guide wheel 3. Since the guide wheel 3 can rotate and the hardness of the elastic layer is small, the friction force on the edge of the flexible material strip is small, and it is not easy to cause wear on the edge of the material strip.

[0050] When it is necessary to adjust the position of the material belt for positioning and correction, the controller on the body 1 drives the two cylinders 11 to start, and the two cylinders 11 synchronously drive the corresponding sliding bodies 2 to move in the same required direction, and then the guide column 31 of the guide wheel 3 can drive the material belt to move horizontally. At this time, the external blower is started to deliver air source to the gas input pipe 5 respectively, and the air source enters the input section 61 through the gas input pipe 5, and then enters the upper and lower fixed plates 32 cavities 7 of the material belt from the distribution section 62 at the same time. The airflow in the cavity 7 is blocked by the two wind limiting plates 101 and concentrated on the side of the cavity 7 aligned with the material belt, and then the airflow is ejected from multiple air outlets 8, so that the upper and lower sides of the edge of the flexible material belt are subjected to uniform wind pressure, which helps to drive the surface of the flexible material belt to remain flat, improve the accuracy of die-cutting and fitting, and not easily cause wrinkles to form on the edge of the flexible material belt, thereby ensuring the die-cutting and fitting quality to a certain extent.

[0051] The present invention also discloses an automatic laminating method. The automatic laminating method uses the above-mentioned high-precision die-cutting and laminating device and includes the following steps:

[0052] Step 1: The material belt is conveyed and slid onto the guide wheels 3 on both sides. The guide wheels 3 are driven to rotate during the movement of the material belt.

[0053] Step 2: When the cylinder 11 drives the sliding body 2 to move the guide wheel 3 to correct the material belt, the external blower is started to input air into the gas input pipes 5 on both sides of the material belt. The air flows through the input section 61 and the distribution section 62 and enters the fixed plates 32 at both ends. Then, it is ejected through the air outlet 8 on the fixed plates 32 aligned with the material belt, and evenly applies air pressure to the upper and lower sides of the edge of the flexible material belt, driving the flexible material belt at the guide wheel 3 to remain flat.

[0054] Step 3: The material strip is then conveyed to the laminating area for lamination or to the die-cutting area for slitting.

[0055] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-precision die-cutting and laminating device, characterized in that: include: Body (1); A sliding body (2), wherein two sliding bodies (2) are provided, and the two sliding bodies (2) are relatively slidably arranged on the machine body (1), and the two sliding bodies (2) are located on opposite sides of the flexible material strip; A guide wheel (3), wherein the guide wheel (3) corresponds to the sliding body (2) on a one-to-one basis, the guide wheel (3) is rotatably arranged on the corresponding sliding body (2), and the guide wheel (3) is used to abut against the edge of the flexible material strip; A flattening mechanism, the flattening mechanism is used to drive the flexible material strip at the guide wheel (3) to remain flat; A driving member, the driving member is used to drive the sliding body (2) to drive the guide wheel (3) to move; The guide wheel (3) comprises a guide column (31) and a fixing plate (32), two fixing plates (32) are provided, and the two fixing plates (32) are relatively arranged at the two ends of the guide column (31), and the outer wall of the guide column (31) is used to abut against the edge of the flexible material strip; A fixed column (4) is provided on the sliding body (2), and the guide column (31) and the fixed plate (32) are both rotatably sleeved on the corresponding fixed column (4). The flattening mechanism includes a gas input pipe (5) provided on the fixed column (4) and a conveying channel (6) provided in the fixed column (4). The gas input pipe (5) is connected to an external wind source, and the conveying channel (6) is connected to the gas input pipe (5). A cavity (7) is provided in each of the fixed plates (32), and the cavity (7) is provided along the circumference of the fixed column (4). The cavity (7) is connected to the conveying channel (6). A plurality of air outlet holes (8) are provided on a side of the fixed plate (32) close to the flexible material strip, and the air outlet holes (8) are connected to the corresponding cavities (7). A wind limiting group (10) is provided on the fixed column (4), and the wind limiting group (10) corresponds to the cavity (7) one by one. Each group of the wind limiting groups (10) includes wind limiting plates (101) provided on opposite sides of the fixed column (4), and the wind limiting plates (101) extend into the corresponding cavity (7). The gap between the wind limiting plates (101) and the inner wall of the corresponding cavity (7) is less than 1 mm. The arrangement direction of the two wind limiting plates (101) in each group of the wind limiting groups (10) is parallel to the transmission direction of the flexible material strip.

2. The high-precision die-cutting and laminating device according to claim 1, characterized in that: The guide column (31) is rotatably arranged on the corresponding sliding body (2) along the vertical direction, and the two fixing plates (32) are located on the upper and lower sides of the flexible material strip.

3. The high-precision die-cutting and laminating device according to claim 1, characterized in that: The delivery channel (6) comprises an input section (61) and a distribution section (62). One end of the input section (61) is connected to the gas input pipe (5), and the other end is connected to the distribution section (62). The distribution section (62) has two gas outlets (9). The gas outlets (9) correspond one-to-one with the fixed plates (32). The gas outlets (9) are connected to the cavities (7) in the corresponding fixed plates (32). The two gas outlets (9) are equidistant from the connection point between the input section (61) and the distribution section (62).

4. The high-precision die-cutting and laminating device according to claim 1, characterized in that: The diameter of the air outlet hole (8) is less than 1 mm.

5. The high-precision die-cutting and laminating device according to claim 1, characterized in that: The guide column (31) is covered with an elastic layer, and the elastic layer is used to abut against the edge of the flexible material strip.

6. A high-precision die-cutting and laminating device according to any one of claims 1 to 5, characterized in that: The driving member comprises a cylinder (11) arranged on the machine body (1), the cylinder (11) corresponds to the sliding body (2) one by one, and the sliding body (2) is connected to the piston rod of the corresponding cylinder (11).

7. An automatic laminating method using the high-precision die-cutting and laminating device according to any one of claims 1 to 6, characterized in that: The steps include: The material belt is conveyed and slidably overlapped on the guide wheels (3) on both sides, driving the guide wheels (3) to rotate; When the driving member drives the sliding body (2) to drive the guide wheel (3) to move to correct the material strip, the flattening mechanism drives the flexible material strip at the guide wheel (3) to remain flat; The material strip is then conveyed to the laminating area for lamination or to the die-cutting area for slitting.

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