PVC color film thermal cutting device

By using upper and lower cutting blades arranged in opposite directions and a temperature-controlled cylindrical heater, the problems of deformation and carbonization of PVC colored film during the cutting process are solved, achieving a highly efficient and non-destructive cutting effect.

CN223812167UActive Publication Date: 2026-01-20CHANGZHOU TIANCAI WOOD IND CO LTD
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Patent Information

Application Number
CN202520182443.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2026-01-20
Estimated Expiration
2035-02-06

AI Technical Summary

Technical Problem

In existing technologies, PVC colored films are prone to deformation during cold cutting and charring during hot cutting, resulting in damage to the finished product.

Method used

The system employs back-to-back cutting blades, combined with a temperature-adjustable cylindrical heater and an anti-sintering agent, to ensure cutting efficiency and finished product quality.

Benefits of technology

It enables efficient cutting of PVC colored film, avoiding deformation and carbonization, and improving cutting efficiency and finished product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of PVC color film processing, and particularly relates to a PVC color film thermal cutting device which comprises a production base and a conveying platform, and the conveying platform is installed on the production base through a support. A thermal cutting device is further mounted on the production base, and the thermal cutting device is arranged on one side of the conveying platform; the thermal cutting device comprises a lower cutting die and an upper cutting die, the lower cutting die comprises a lower tool apron and a lower cutting knife, and the upper cutting die comprises an upper tool apron and an upper cutting knife; the lower cutting knife is fixed on the lower knife holder through a bolt, and the upper cutting knife is fixed on the upper knife holder through a bolt; the cutting edge of the upper cutting knife and the cutting edge of the lower cutting knife are arranged back to back; according to the color film cutting device, a large color film can be rapidly cut, the precision and accuracy of film cutting are improved by arranging the cutting knife and heating the knife body, and the damage rate of the film is effectively reduced.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to PVC color film processing technical field, concretely relates to a PVC color film hot cutting device. BACKGROUND

[0002] PVC (polyvinyl chloride) color film is a kind of material widely used in decoration and protection field.It has the characteristics such as rich color, various patterns, waterproof and moisture-proof, easy cleaning, therefore, it is widely used in the field such as home decoration, commercial place, car film etc.

[0003] According to the different use demand of PVC color film, the whole PVC color film is cut in the production process, especially for the PVC color film that has been pasted on the base material.The conventional cutting mode is straight cutting by blade, since PVC color film has certain toughness, this cold cutting mode is prone to draw-in phenomenon, and it is easy to cause the deformation of cut product, and damage the original structure of product.The conventional laser hot processing mode is fast in cutting speed, and does not deform PVC color film, but it is easy to cause the carbonization of material due to the poor heat resistance of PVC material, still can damage the integrity of PVC color film, and cause loss. INVENTION CONTENTS

[0004] The utility model aims at providing a PVC color film hot cutting device, including production base and transmission platform, the transmission platform is installed on the production base through support;The production base is also installed with hot cutting device, and the hot cutting device is arranged on one side of the transmission platform;The hot cutting device includes lower cutting die and upper cutting die, and the lower cutting die includes lower tool seat and lower cutting knife, and the upper cutting die includes upper tool seat and upper cutting knife;The lower cutting knife is fixed on the lower tool seat by bolt, and the upper cutting knife is fixed on the upper tool seat by bolt;The cutting edge of the upper cutting knife and the cutting edge of the lower cutting knife are arranged as back to each other.

[0005] Preferably, the top of the upper cutting die is connected with a gas cylinder, and the gas cylinder is installed on the side wall plate, so that the upper cutting die is located above the lower cutting die.

[0006] Preferably, it further includes a finished product conveying device, and the finished product conveying device is arranged obliquely on the side of the lower cutting die away from the transmission platform.

[0007] Preferably, the surface of the finished product conveying device is a Teflon conveying net, and the Teflon conveying net is driven by a motor, a rotating drum and a hinge.

[0008] Preferably, the side edges of the upper tool seat and the lower tool seat are both installed with a cylinder heater.

[0009] Preferably, the upper cutting die and the lower cutting die are coated with an anti-sintering agent.

[0010] Preferably, the production base is provided with an infrared monitoring device on four corners.

[0011] The beneficial effects of the present application are as follows:

[0012] By setting the upper cutting knife and the lower cutting knife to be opposite to each other, the pressure between the upper and lower cutting knives is reduced, so that the cutting force of the cutting knife on the PVC color film is enhanced; by installing the temperature-controllable barrel heater on the side of the upper and lower knife holders, the cutting knife has the ability to heat during the working process, and the cut PVC color film is not burned by high temperature, so that the cutting efficiency and the product quality are improved.

[0013] Other features and advantages of the present application will be set forth in the following description of the application, and in part will become apparent to those skilled in the art upon examination of the following or can be learned by practice of the application. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the written description and claims thereof as well as the appended drawings.

[0014] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the following preferred embodiments are described in detail, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor.

[0016] Fig. 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0017] Fig. 2 is a schematic diagram of the cutting knife position of the embodiment of the present application;

[0018] Fig. 3 is a schematic diagram of the infrared detection device of the embodiment of the present application.

[0019] In the drawings:

[0020] Production base 1, transmission platform 2, hot cutting device 3, lower cutting die 4, lower knife holder 401, lower cutting knife 402, upper cutting die 5, upper knife holder 501, upper cutting knife 502, air cylinder 6, side wall plate 7, finished product conveying device 8, Teflon conveying net 9, barrel heater 10, infrared monitoring device 11. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the utility model will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are some embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] As shown in the position relationship, the cutting edge of the upper cutting knife 502 and the cutting edge of the lower cutting knife 402 are arranged oppositely, so as to reduce the pressure between the cutting tips during cutting, increase the longitudinal shearing force, and make the PVC color film with greater toughness be cut off quickly. Figs. 1 to 3 The utility model provides a PVC color film hot cutting device, including production base 1 and transmission platform 2, the transmission platform 2 is installed on the production base 1 through support, and the transmission platform 2 is stainless steel material, which is used for receiving the whole PVC color film conveyed by the last stage work station;The production base 1 is also provided with hot cutting device 3, and the hot cutting device 3 is arranged on one side of the transmission platform 2;The hot cutting device 3 includes lower cutting die 4 and upper cutting die 5, the lower cutting die 4 includes lower knife seat 401 and lower cutting knife 402, and the upper cutting die 5 includes upper knife seat 501 and upper cutting knife 502;The lower cutting knife 402 is fixed on the lower knife seat 401 by bolt, and the upper cutting knife 502 is fixed on the upper knife seat 501 by bolt;As shown in the position relationship, the cutting edge of the upper cutting knife 502 and the cutting edge of the lower cutting knife 402 are arranged oppositely, so as to reduce the pressure between the cutting tips during cutting, increase the longitudinal shearing force, and make the PVC color film with greater toughness be cut off quickly. Fig. 2 The top of the upper cutting die 5 is connected with a cylinder 6, the cylinder 6 is installed on the side wall plate 7, so that the upper cutting die 5 is located above the lower cutting die 4. The cylinder 6 is electrically connected with a control end, the starting frequency of the cylinder 6 is controlled according to the feeding speed of the PVC color film calculated by the control end, the ejecting action makes the upper cutting die 5 press down instantaneously, and the passing PVC color film is cut quickly.

[0023] According to the preheating and softening characteristics of the PVC color film, the side edges of the upper knife seat 501 and the lower knife seat 401 are both provided with a barrel heater 10 electrically connected with a control end, the temperature of the upper cutting die 5 and the lower cutting die 4 is controlled, the cutting knife is kept at a temperature that can soften the PVC color film but will not make it carbonize, the pulling degree between the PVC color films during cutting is reduced, and the cutting efficiency is effectively improved. The surfaces of the upper cutting die 5 and the lower cutting die 4 are both smeared with an anti-sintering agent to form a protective film, so as to prevent the cutting die from being damaged due to heating.

[0024]

[0025] ​Also included is a finished product conveying device 8, which is arranged obliquely on the side of the lower cutting die 4 away from the conveying platform 2. Due to the proximity to the heat source, the surface of the finished product conveying device 8 is a Teflon conveying net 9, which will not be deformed by high temperature, and the net structure helps the finished product to cool and set quickly after cutting. The Teflon conveying net 9 is driven by a motor, a rotating drum and a hinge to convey the finished product to another place.

[0026] In order to prevent the operator from being dangerous by accidentally touching the cutting knife, an infrared monitoring device 11 is arranged on the four corners of the production base 1, which is connected with the emergency stop switch of the device. When the infrared monitoring device 11 detects a human body in the range, the receiving state of the infrared ray changes, and the infrared monitoring device 11 feeds back a signal to start the emergency stop instantly. Fig. 3 As shown in the device distribution and infrared emission path, the infrared monitoring device 11 includes two diagonally placed receiving devices and two diagonally placed emitting devices. The emitting device can emit infrared rays in two directions at the same time, and the receiving device can also receive infrared rays from two directions at the same time, forming complete monitoring of four surfaces and improving the safety of the device.

[0027] In the present application, each device (parts not described in detail) selected is a general standard part or a part known to those skilled in the art, and its structure and principle can be known by the technical personnel through the technical manual or through the conventional experimental method.

[0028] In the description of the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In the description of the present application, it should be pointed out that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0030] With the above ideal embodiment of the present application as the inspiration, through the above description, relevant staff can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited to the content of the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A PVC color film hot cutting device, comprising a production base (1) and a transmission platform (2), the transmission platform (2) is installed on the production base (1) through a support; characterized in that: The production base (1) is further provided with a hot cutting device (3), which is arranged on one side of the transmission platform (2); the hot cutting device (3) comprises a lower cutting die (4) and an upper cutting die (5), the lower cutting die (4) comprises a lower cutter seat (401) and a lower cutting knife (402), and the upper cutting die (5) comprises an upper cutter seat (501) and an upper cutting knife (502); the lower cutting knife (402) is fixed on the lower cutter seat (401) by bolts, and the upper cutting knife (502) is fixed on the upper cutter seat (501) by bolts; the cutting edge of the upper cutting knife (502) and the cutting edge of the lower cutting knife (402) are arranged opposite to each other.

2. The PVC color film hot cutting device according to claim 1, characterized in that: The top of the upper cutting die (5) is connected with a gas cylinder (6), the gas cylinder (6) is installed on a side wall plate (7), so that the upper cutting die (5) is located above the lower cutting die (4).

3. The PVC color film hot cutting device according to claim 2, characterized in that: Further comprising a finished product conveying device (8), which is arranged obliquely on the side of the lower cutting die (4) away from the transmission platform (2).

4. The PVC color film hot cutting device according to claim 3, characterized in that: The surface of the finished product conveying device (8) is a Teflon conveying net (9), which is driven by a motor, a rotating drum and a hinge.

5. The PVC color film hot cutting device according to claim 4, characterized in that: The side edges of the upper cutter seat (501) and the lower cutter seat (401) are both provided with a cylindrical heater (10).

6. The PVC color film hot cutting device according to claim 5, characterized in that: The surfaces of the upper cutting die (5) and the lower cutting die (4) are both coated with an anti-sintering agent.

7. The PVC color film hot cutting device according to claim 1, characterized in that: The production base (1) is provided with an infrared monitoring device (11) on four corners.