Cutting device for stretch-resistant decorative film production

Abstract

The utility model relates to a cutting device for producing a tensile decorative film. The device comprises a feeding conveying belt, a three-axis servo knife rest and a cutting knife, and further comprises an anti-adhesion mechanism which is composed of a reel, a flexible spacer, a traction rod and a horizontal traction module; the lifting stacking mechanism is composed of a horizontal lifting table, a sliding block, a plurality of vertical guide rails and an electric cylinder. The servo carrying mechanism is composed of a horizontal servo module, a vertical servo module and a carrying frame, and a plurality of negative pressure suction cups which are vertically and downwards arranged are arranged at the bottom of the carrying frame. And adhesion between the moving decorative film finished product pieces and the stacked decorative film finished product pieces on the horizontal lifting table is avoided, so that the effect of neat stacking is achieved.

Description

Technical Field

[0001] This utility model relates to a sheet cutting device, and more particularly to a cutting device for producing tensile-resistant decorative film. Background Technology

[0002] Tensile decorative film is a film material made from high-molecular polymers with various additives, processed through calendering and lamination. It can be used for surface lamination of substrates such as wood, plastic cups, and aluminum plates, achieving a decorative effect. Due to customer customization requirements, some decorative films require a cutting process followed by stacking and packaging. Existing film cutting equipment generally consists of a cutting table, conveyor belt, three-axis servo blade holder, and cutting blades. The cutting blades are divided into circular blades and vibrating blades, capable of cutting decorative films into any irregular shape. However, the finished films lack dedicated stacking equipment and must be stacked manually, significantly increasing labor costs. Therefore, to reduce labor costs and improve automation, the decorative film manufacturing industry urgently needs to develop a cutting machine with automatic stacking capabilities. Summary of the Invention

[0003] This invention provides a cutting device for producing tensile decorative film, which solves the problem in the prior art that it is impossible to automatically stack the cut materials.

[0004] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a cutting device for producing tensile decorative film, including a feeding conveyor belt, a three-axis servo tool holder and a cutting blade, and further including:

[0005] The anti-adhesion mechanism consists of a spool, a flexible partition wound on the spool, a traction rod fixed to the front end of the flexible partition, and a horizontal traction module. The spool is located behind the feeding conveyor belt, and the axis of the spool is perpendicular to the conveying direction of the feeding conveyor belt. The horizontal traction module can drive the traction rod and the flexible partition to move back and forth.

[0006] The lifting and stacking mechanism consists of a horizontal lifting platform, sliders arranged around the horizontal lifting platform, several vertical guide rails, and an electric cylinder. The sliders are slidably mounted on the vertical guide rails. The electric cylinders are vertically arranged at the bottom of the horizontal lifting platform and push the horizontal lifting platform up and down. The horizontal lifting platform is located behind the reel, and the upper stop point of the horizontal lifting platform is lower than the trajectory of the traction rod.

[0007] The servo transport mechanism consists of a horizontal servo module, a vertical servo module, and a transport frame. The length direction of the horizontal servo module is parallel to the conveying direction of the feeding conveyor belt. The bottom of the transport frame is provided with several vertically downward-facing negative pressure suction cups. The servo transport mechanism can transport the decorative film on the feeding conveyor belt to the horizontal lifting platform.

[0008] In this invention, the feeding conveyor belt transports the continuous decorative film backward to the cutting area. Under the control of the control center, the three-axis servo tool holder and the cutting blade cut the decorative film in the cutting area. After cutting, the three-axis servo tool holder moves the cutting blade forward a certain distance, providing sufficient space for the servo conveying mechanism. The horizontal servo module within the servo conveying mechanism drives the vertical servo module and the conveying frame to the cutting area. Then, the vertical servo module controls the conveying frame to descend, and the negative pressure suction cups on the conveying frame activate, gripping the rear end area of ​​the finished decorative film. Simultaneously, the vertical servo module controls the conveying frame to slightly rise. The horizontal servo module moves backward, pulling the finished decorative film towards the horizontal lifting platform. Simultaneously, before the finished decorative film leaves the feeding conveyor belt, the horizontal traction module in the anti-adhesion mechanism pulls the traction rod and flexible partition backward until the flexible partition covers the top of the horizontal lifting platform. Then, when the finished decorative film is transferred to the top of the horizontal lifting platform by the servo handling mechanism, the horizontal traction module pushes the traction rod back to its original position, the reel simultaneously winds up the flexible partition, and then the negative pressure suction cup on the transport frame closes, allowing the finished decorative film to fall onto the horizontal lifting platform. This completes one cutting and stacking operation. Once the servo handling mechanism pulls the finished decorative film away from the feeding conveyor belt, the next cutting operation can begin. As the number of films stacked on the horizontal lifting platform increases, to avoid interference with the traction rod, the electric cylinder can controllably lower the horizontal lifting platform. To reduce the operating frequency and accuracy requirements of the electric cylinder, the single descent stroke of the electric cylinder in this invention is no less than 5mm. The electric cylinder is only activated to perform the descent operation when the thickness of the newly stacked film approaches the single descent stroke of the electric cylinder. Therefore, before cutting, the thickness of the sheet to be cut needs to be manually input, and the system will automatically calculate the descent interval of the electric cylinder.

[0009] Furthermore, the horizontal traction module is provided in two sets and is distributed on both sides of the horizontal lifting platform. The horizontal traction module includes a horizontal guide rail, a horizontal slider and a synchronous pulley set. The two horizontal sliders are fixed to both ends of the traction rod and are driven by the synchronous pulley set to slide along the horizontal guide rail.

[0010] Furthermore, the spool is equipped with a spring reset device or a torsion spring reset device, causing the spool to rotate in the direction of winding up the flexible spacer. This allows the spool to autonomously wind up the flexible spacer during the traction rod reset process and helps keep the pulled-out flexible spacer taut at all times.

[0011] Furthermore, the three-axis servo tool holder or the moving frame is provided with at least one distance sensor for detecting the distance between the two, so as to avoid collision between the three-axis servo tool holder and the moving frame.

[0012] Therefore, this utility model has the following characteristics compared with the prior art: 1. This utility model can autonomously transport the finished decorative film sheet from the cutting area to the horizontal lifting platform through a servo conveying mechanism. At the same time, an anti-adhesion mechanism is set to prevent the finished decorative film sheet in motion from sticking to the finished decorative film sheet that has been stacked on the horizontal lifting platform, thereby achieving a neat stacking effect. Attached Figure Description

[0013] Appendix Figure 1 This is a side view of the present invention;

[0014] Appendix Figure 2 This is a top view of the present invention;

[0015] Appendix Figure 3 It is an assembly diagram of the traction rod and the horizontal guide rail. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Example 1: See Figure 1 and Figure 2 A cutting device for producing tensile decorative film includes a feeding conveyor belt 10, a three-axis servo cutter head 20, and a vibrating cutter 30, and further includes:

[0019] The anti-adhesion mechanism 100 consists of a roller 110, a flexible partition 120 wound on the roller, a traction rod 130 fixed to the front end of the flexible partition, and a horizontal traction module. The roller is located behind the feeding conveyor belt, and the axis of the roller is perpendicular to the conveying direction of the feeding conveyor belt. The horizontal traction module can drive the traction rod and the flexible partition to move back and forth. The width of the flexible partition is approximately the width of the feeding conveyor belt.

[0020] The lifting and stacking mechanism 200 consists of a horizontal lifting platform 210, four sliders 220 arranged around the horizontal lifting platform, four vertical guide rails 230, a base plate 250, and an electric cylinder 240. The sliders are slidably installed on the vertical guide rails. The electric cylinder is vertically arranged at the bottom of the horizontal lifting platform and pushes the horizontal lifting platform up and down. The horizontal lifting platform is located behind the roller, and the upper stop point of the horizontal lifting platform is lower than the trajectory of the traction rod.

[0021] The servo conveying mechanism 300 consists of a horizontal servo module 310, a vertical servo module 320, and a conveying frame 330. The length direction of the horizontal servo module is parallel to the conveying direction of the feeding conveyor belt. The bottom of the conveying frame is equipped with several vertically downward-facing negative pressure suction cups 340. The negative pressure suction cups are connected to a negative pressure air pump through flexible air pipes. The servo conveying mechanism can transport the decorative film on the feeding conveyor belt to the horizontal lifting platform.

[0022] In this embodiment, the feeding conveyor belt is used to transport the continuous decorative film backward to the cutting area. Under the control of the control center, the three-axis servo tool holder and the cutting blade can cut the decorative film in the cutting area. After cutting, the three-axis servo tool holder drives the cutting blade forward a certain distance, providing sufficient space for the servo conveying mechanism. The horizontal servo module within the servo conveying mechanism drives the vertical servo module and the conveying frame to move to the cutting area. Then, the vertical servo module controls the conveying frame to descend, and the negative pressure suction cups on the conveying frame are activated to hold the rear end area of ​​the finished decorative film. Then, the vertical servo module controls the conveying frame to rise slightly. The horizontal servo module moves backward, pulling the finished decorative film towards the horizontal lifting platform. Simultaneously, before the finished decorative film leaves the feeding conveyor belt, the horizontal traction module in the anti-adhesion mechanism pulls the traction rod and flexible partition backward until the flexible partition covers the top of the horizontal lifting platform. Then, when the finished decorative film is transferred to the top of the horizontal lifting platform by the servo handling mechanism, the horizontal traction module pushes the traction rod back to its original position, the reel simultaneously winds up the flexible partition, and then the negative pressure suction cup on the transport frame closes, allowing the finished decorative film to fall onto the horizontal lifting platform. This completes one cutting and stacking operation in this embodiment. Once the servo handling mechanism pulls the finished decorative film away from the feeding conveyor belt, this embodiment can begin the next cutting operation. As the number of films stacked on the horizontal lifting platform increases, to avoid interference with the traction rod, the electric cylinder can controllably lower the horizontal lifting platform. To reduce the operating frequency and accuracy requirements of the electric cylinder, the single descent stroke of the electric cylinder in this embodiment is 5mm. The electric cylinder is only activated to perform the descent action when the thickness of the newly stacked film approaches the single descent stroke of the electric cylinder. Therefore, before cutting, this embodiment requires manual input of the film thickness of the sheet to be cut, and the system will automatically calculate the descent interval of the electric cylinder.

[0023] For details, see Figure 2 and Figure 3Two horizontal traction modules are provided and distributed on both sides of the horizontal lifting platform. The horizontal traction module includes a horizontal guide rail 140, a horizontal slider 150 and a synchronous pulley set 160. The two horizontal sliders are fixed to both ends of the traction rod and are driven by the synchronous pulley set to slide along the horizontal guide rail.

[0024] Specifically, the reel is equipped with a torsion spring reset device, which causes the reel to rotate in the direction of winding up the flexible spacer.

[0025] For details, see Figure 1 and Figure 2 The horizontal servo module has two sets and is symmetrically distributed on the left and right. The two horizontal servo modules are equipped with a moving frame 350 for transmission. The vertical servo module is fixed on the moving frame. The moving frame is also equipped with two vertical slide rails 351. The transport frame is slidably installed on the two vertical slide rails and is connected to the vertical servo module for transmission.

[0026] For details, see Figure 1 The moving frame is equipped with a distance sensor 40 for detecting the distance between the two, so as to avoid collision between the three-axis servo tool post and the moving frame.

[0027] For details, see Figure 1 The feed conveyor belt is also equipped with a waste material winding roller 50 at the lower rear end, which is used to automatically wind up the remaining scraps.

[0028] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.

Claims

1. A cutting device for producing tensile decorative film, comprising a feeding conveyor belt, a three-axis servo tool holder, and a cutting blade, characterized in that, It also includes: The anti-adhesion mechanism consists of a spool, a flexible partition wound on the spool, a traction rod fixed to the front end of the flexible partition, and a horizontal traction module. The spool is located behind the feeding conveyor belt, and the axis of the spool is perpendicular to the conveying direction of the feeding conveyor belt. The horizontal traction module can drive the traction rod and the flexible partition to move back and forth. The lifting and stacking mechanism consists of a horizontal lifting platform, sliders arranged around the horizontal lifting platform, several vertical guide rails, and an electric cylinder. The sliders are slidably mounted on the vertical guide rails. The electric cylinders are vertically arranged at the bottom of the horizontal lifting platform and push the horizontal lifting platform up and down. The horizontal lifting platform is located behind the reel, and the upper stop point of the horizontal lifting platform is lower than the trajectory of the traction rod. The servo transport mechanism consists of a horizontal servo module, a vertical servo module, and a transport frame. The length direction of the horizontal servo module is parallel to the conveying direction of the feeding conveyor belt. The bottom of the transport frame is provided with several vertically downward-facing negative pressure suction cups. The servo transport mechanism can transport the decorative film on the feeding conveyor belt to the horizontal lifting platform.

2. The cutting device for producing tensile decorative film according to claim 1, characterized in that: The horizontal traction module is provided in two sets and is distributed on both sides of the horizontal lifting platform. The horizontal traction module includes a horizontal guide rail, a horizontal slider and a synchronous pulley set. The two horizontal sliders are fixed to both ends of the traction rod and are driven by the synchronous pulley set to slide along the horizontal guide rail.

3. The cutting device for producing tensile decorative film according to claim 1 or 2, characterized in that: The spool is equipped with a spring reset device or a torsion spring reset device, which causes the spool to rotate in the direction of winding up the flexible spacer.

4. The cutting device for producing tensile decorative film according to claim 1, characterized in that: The horizontal servo module is provided in two sets and is symmetrically distributed on the left and right. A moving frame is driven on the two horizontal servo modules. The vertical servo module is fixed on the moving frame. The moving frame is also provided with two vertical guide rails. The transport frame is slidably installed on the two vertical guide rails and is drivenly connected to the vertical servo module.

5. The cutting device for producing tensile decorative film according to claim 4, characterized in that: At least one distance sensor for detecting the distance between the two is provided on the three-axis servo tool holder or the moving frame.

6. The cutting device for producing tensile decorative film according to claim 1, characterized in that: The feed conveyor belt is also equipped with a waste material take-up roller on the lower rear end.

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