Slitting device for thin film stay wire

Abstract

The utility model discloses a slitting device for a thin film stay wire, which belongs to the technical field of thin film stay wires and comprises an unwinding roller, a film guide roller, an adjusting roller, a heating roller, a traction rubber roller and a winding roller which are sequentially arranged. A slitting knife for slitting the thin film stay wire is arranged between the heating roller and the traction rubber roller; and an anti-sticking roller is arranged above the heating roller. The thin film slitting device comprises an unwinding roller, a film guide roller, an adjusting roller, a heating roller, a traction rubber roller and a winding roller which are sequentially arranged, an anti-sticking rubber roller is arranged above the heating roller, the heating roller can heat a thin film pull wire to soften a thin film, and the winding roller is arranged above the film guide roller. Therefore, the problems that burrs are prone to being generated during slitting and slitting edges are in a sawtooth shape are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to PVC pull line technical field, concretely relates to a film pull line slitting device. BACKGROUND

[0002] Film pull line has the characteristics of high shrinkage, high transparency and good flexibility, and plays an important role in the aspect of convenient unpacking in the pull line industry. With the increase of demand, the slitting of film pull line also causes certain difficulties. At present, film pull line is slitted in the environment of normal temperature, and most of them are in the environment of air-conditioned workshop. Under the condition of low temperature, the film will become relatively hard and brittle, and quality problems such as burr or sawtooth-shaped edge will occur during continuous production, which seriously affects the product quality. Therefore, a continuous production method capable of guaranteeing the quality of film pull line is also urgently needed.

[0003] The film has high flexibility and elasticity. During the slitting process, especially when slitting into thin lines in continuous production, burr and sawtooth-shaped slitting edge are prone to occur. The burr will make the product appearance not good-looking, and the generated chipped material will be brought into the product with the winding, which will also be attached to the surface of the customer's product during the customer's use process. The sawtooth-shaped edge will seriously reduce the breaking strength of the pull line, causing the pull line to break during the customer's use process.

[0004] In view of this, the present application is proposed. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the deficiencies existing in the prior art and providing a film pull line slitting device, so as to solve the problems of burr and sawtooth-shaped slitting edge.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0007] A film pull line slitting device, comprising unwinding rollers, film guide rollers, adjusting rollers, heating rollers, traction rubber rollers and winding rollers arranged in sequence; a slitting knife for slitting the film pull line is arranged between the heating rollers and the traction rubber rollers;

[0008] A glue-proof roller is arranged above the heating roller.

[0009] The film slitting device comprises unwinding rollers, film guide rollers, adjusting rollers, heating rollers, traction rubber rollers and winding rollers arranged in sequence. A glue-proof roller is arranged above the heating roller. The heating roller can heat the film pull line to soften the film, so as to solve the problems of burr and sawtooth-shaped slitting edge.

[0010] Preferably, the glue-proof roller is driven to press against the heating roller by a pneumatic cylinder.

[0011] Preferably, the traction rubber roller comprises a first traction rubber roller and a second traction rubber roller arranged in sequence; a traction steel roll is arranged below the first traction rubber roller, and the traction steel roll is used for pressing the slit film drawing line.

[0012] Preferably, the winding roller is connected with the second traction rubber roller through a film guide roller.

[0013] Preferably, the number of the winding rollers is n, and n is a positive integer greater than or equal to 2.

[0014] Preferably, a mold temperature machine and a rotary joint are further included, the rotary joint is located in the heating roller, and the mold temperature machine is connected with the rotary joint through a first connecting pipe and a second connecting pipe.

[0015] Preferably, the temperature of the surface of the heating roller is 60-80 DEG C, the temperature of the surface of the heating roller is controlled to be 60-80 DEG C, the problems of burr and jagged slit edge generated during the slitting are solved, and the breaking strength and breaking elongation of the film drawing line are effectively improved.

[0016] The utility model also provides a kind of slitting method of film drawing line, based on the slitting device of film drawing line described above, including the following steps:

[0017] Heat the heat-conducting oil in the mold temperature machine to 60-80 DEG C, the heat-conducting oil enters the heating roller through the first connecting pipe and one end of the rotary joint, heats the surface of the heating roller, and the heat-conducting oil returns to the mold temperature machine through the other end of the rotary joint and the second connecting pipe;

[0018] Place the film drawing line on the unwinding roller, the film drawing line passes through the film guide roller and the adjusting roller in sequence, the adjusting roller adjusts the wrap angle of the film drawing line and the heating roller, the anti-adhesive roller presses the film drawing line with the heating roller through the cylinder, the film drawing line is cut by the slitting cutter after being heated, and then passes through the traction rubber roller and the winding roller in sequence, to complete the slitting.

[0019] Preferably, the surface is heated to 60-80 DEG C.

[0020] Preferably, the wrap angle of the film drawing line and the heating roller is 60-120 DEG.

[0021] Preferably, the angle between the slitting cutter and the film drawing line is 60-70 DEG.

[0022] Wherein, process parameters are set when slitting: machine speed 80-150 m / min, unwinding tension 20-30 N, slitting width 2.5±0.1 mm, winding line distance 1.5-3.0 mm, winding tension 0.1-0.3 N, anti-adhesive roller pressure 0.1-0.3 MPa.

[0023] The utility model discloses a beneficial effect lies in: the film slitting device of the utility model includes the unwinding roller, membrane guide roller, adjusting roller, heating roller, traction rubber roller and winding roller who sets gradually, be equipped with the anti -adhesive roller on the heating roller, the heating roller can heat the film fishing line, make the film soften, thereby solve the problem that slitting is easy to produce the raw edge and slitting edge has the jaggedness. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is the film fishing line's slitting device drawing of the utility model.

[0025] Marked in the drawing: 1, unwinding roller;2, membrane guide roller;3, adjusting roller;4, heating roller;5, slitting knife;6, traction steel roller;7, first traction rubber roller, 8, second traction rubber roller;9, winding roller;10, mould temperature machine;11, swivel joint;12, first connecting pipe;13, second connecting pipe;14, anti -adhesive roller;15, pneumatic cylinder. DETAILED DESCRIPTION

[0026] To make the purpose, technical scheme and advantage of the embodiment of the application more clear, the technical scheme in the embodiment of the application will be clearly and completely described below, obviously, the described embodiment is a part of the embodiment of the application, not all the embodiment. Based on the embodiment in the application, all other embodiments obtained by the person skilled in the art without making creative labor belong to the scope of protection of the application.

[0027] In the application, the technical features described in an open way include both the closed technical solution consisting of the listed features and the open technical solution containing the listed features.

[0028] In the application, if no special instructions are given, the value range is regarded as continuous and includes the minimum value and the maximum value of the range and every value between the minimum value and the maximum value. Further, when a range is referred to an integer, every integer between the minimum value and the maximum value of the range is included. In addition, when multiple ranges are provided to describe a feature or a characteristic, the ranges can be combined. In other words, unless otherwise specified, all the ranges disclosed in the application should be understood as including any and all subranges.

[0029] In the application, the specific dispersion and stirring treatment method is not particularly limited.

[0030] Unless otherwise specified, the component raw materials or instruments used in the embodiments and the comparative examples of the utility model are commercially available raw materials or instruments, and the component raw materials used in each parallel experiment are the same.

[0031] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of technical features. Thus, features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0032] The following examples are provided to facilitate an understanding of the present application. The provision of these examples is not intended to limit the scope of the claims.

[0033] Example 1

[0034] As shown in Figure 1 The present embodiment provides a slitting device for film pull line, which comprises unwinding roller 1, film guide roller 2, adjusting roller 3, heating roller 4, traction rubber roller and winding roller 9 arranged in sequence. A slitting knife 5 for slitting the film pull line is arranged between the heating roller and the traction rubber roller. An anti-adhesive roller 14 is arranged above the heating roller, and the anti-adhesive roller is driven by a pneumatic cylinder to press against the heating roller.

[0035] More specifically, the traction rubber roller comprises first traction rubber roller 7 and second traction rubber roller 8 arranged in sequence. A traction steel roller 6 is arranged below the first traction rubber roller, and the traction steel roller is used to press the slitted film pull line.

[0036] More specifically, the number of winding rollers is 50, and the winding rollers are connected with the second traction rubber roller through film guide rollers.

[0037] More specifically, it further comprises mold temperature controller 10 and rotary joint 11, and the rotary joint is arranged inside the heating roller. The mold temperature controller is connected with the rotary joint through first connecting pipe 12 and second connecting pipe 13.

[0038] The slitting method for film pull line is based on the above-mentioned slitting device for film pull line, and comprises the following steps:

[0039] The temperature in the slitting workshop is normal temperature, the heat conduction oil in the mold temperature controller is heated to 60 DEG C, the heat conduction oil enters the heating roller through the first connecting pipe and one end of the rotary joint, the surface of the heating roller is heated to 60 DEG C, and the heat conduction oil returns to the mold temperature controller through the other end of the rotary joint and the second connecting pipe, thereby forming a heat conduction oil circulation and maintaining the temperature of the surface of the heating roller at 60 DEG C.

[0040] The machine speed is adjusted to 100 m / min, the unwinding tension is 30 N, the slitting width is 2.5 mm, the winding line distance is 1.65 mm, the winding tension is 0.1 N, the anti-adhesive roller pressure is 0.15 MPa, the film pulling line is placed on the unwinding roller, the film pulling line sequentially passes through the film guide roller and the adjusting roller, the adjusting roller adjusts the wrap angle between the film pulling line and the heating roller to 75 DEG C, the anti-adhesive roller is pressed against the film pulling line by the heating roller through the air cylinder, the film pulling line is cut by the slitting cutter after being heated, and then sequentially passes through the traction rubber roller and the winding roller to complete the slitting.

[0041] Example 2

[0042] Example 2 is different from example 1 in that the preparation parameters are different, and the others are the same.

[0043] The film pulling line slitting method is based on the film pulling line slitting device, and includes the following steps:

[0044] The temperature of the slitting workshop is normal temperature, the heat conduction oil in the mold temperature machine is heated to 70 DEG C, the heat conduction oil enters the heating roller through the first connecting pipe and one end of the rotary joint, the surface of the heating roller is heated to 70 DEG C, and the heat conduction oil returns to the mold temperature machine through the other end of the rotary joint and the second connecting pipe to form a heat conduction oil circulation, so that the temperature of the surface of the heating roller is maintained at 70 DEG C.

[0045] The machine speed is adjusted to 90 m / min, the unwinding tension is 25 N, the slitting width is 2.5 mm, the winding line distance is 1.73 mm, the winding tension is 0.1 N, the anti-adhesive roller pressure is 0.2 MPa, the film pulling line is placed on the unwinding roller, the film pulling line sequentially passes through the film guide roller and the adjusting roller, the adjusting roller adjusts the wrap angle between the film pulling line and the heating roller to 100 DEG C, the anti-adhesive roller is pressed against the film pulling line by the heating roller through the air cylinder, the film pulling line is cut by the slitting cutter after being heated, and then sequentially passes through the traction rubber roller and the winding roller to complete the slitting.

[0046] Example 3

[0047] Example 3 is different from example 1 in that the preparation parameters are different, and the others are the same.

[0048] The film pulling line slitting method is based on the film pulling line slitting device, and includes the following steps:

[0049] The temperature of the slitting workshop is normal temperature, the heat conduction oil in the mold temperature machine is heated to 80 DEG C, the heat conduction oil enters the heating roller through the first connecting pipe and one end of the rotary joint, the surface of the heating roller is heated to 80 DEG C, and the heat conduction oil returns to the mold temperature machine through the other end of the rotary joint and the second connecting pipe to form a heat conduction oil circulation, so that the temperature of the surface of the heating roller is maintained at 80 DEG C.

[0050] The machine speed is adjusted to 90 m / min, the unwinding tension is 25 N, the slitting width is 2.5 mm, the winding line distance is 1.73 mm, the winding tension is 0.1 N, the adhesive preventing roller pressure is 0.2 MPa, the film pulling line is placed on the unwinding roller, the film pulling line passes through the film guide roller and the adjusting roller in sequence, the adjusting roller adjusts the wrap angle between the film pulling line and the heating roller to 100℃, the film pulling line is pressed by the adhesive preventing roller and the heating roller, the film pulling line is cut by the slitting knife after being heated, and then passes through the traction rubber roller and the winding roller in sequence, and the slitting is completed.

[0051] Comparative Example 1

[0052] Comparative Example 1 is different from Example 1 in that no heat conducting oil is introduced in Comparative Example 1, that is, the heat conducting roller in this comparative example does not work, and the others are the same.

[0053] Comparative Example 2

[0054] Comparative Example 2 is different from Example 1 in that the temperature of the surface of the heating roller in Comparative Example 2 is 40℃, and the others are the same.

[0055] Comparative Example 3

[0056] Comparative Example 3 is different from Example 1 in that the temperature of the surface of the heating roller in Comparative Example 3 is 90℃, and the others are the same.

[0057] Comparative Example 4

[0058] Comparative Example 4 is different from Example 1 in that the adjusting roller in Comparative Example adjusts the wrap angle between the film pulling line and the heating roller to 30℃, and the others are the same.

[0059] Comparative Example 5

[0060] Comparative Example 5 is different from Example 1 in that the adjusting roller in Comparative Example adjusts the wrap angle between the film pulling line and the heating roller to 150℃, and the others are the same.

[0061] Test Example

[0062] The film pulling lines prepared in the above examples are respectively subjected to the following performance tests:

[0063] 1. Appearance: visually compared with the standard sample to see if there is deviation. Standard sample: the pulling line is flat, without curling, and the edge is without fluff and sawtooth shape.

[0064] 2. Breaking strength: according to GB / T 1040.3, the pulling line with a width of 2.5 mm is sampled for 150 mm-300 mm, the two ends are clamped by the clamp of the electronic universal tensile testing machine, and the tensile test is carried out at a speed of 100 mm / min.

[0065] 3. Elongation at break: according to GB / T 1040.3, take 150mm-300mm sample of the slitting thread of 2.5mm width, clamp both ends with the clamp of the electronic universal tensile testing machine, and perform tensile test at a speed of 100mm / min.

[0066] Table 1

[0067]

[0068]

[0069] As can be seen from Table 1, the film slitting device can obtain the film slitting thread with neat edges, no burr and sawtooth shape, the breaking strength is ≥4.2kN / m, and the elongation at break is ≥126%.

[0070] It should be noted that the above examples are only used to illustrate the technical solutions of the present application, and are not intended to limit the scope of protection of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the present application.

Claims

1. A slitting apparatus for film pull-tab, characterized by, The film drawing machine comprises unwinding roller, film guide roller, adjusting roller, heating roller, traction rubber roller and winding roller arranged in sequence; a slitting cutter is arranged between the heating roller and the traction rubber roller for slitting the film drawing line; A non-stick rubber roller is arranged above the heating roller.

2. The apparatus of claim 1, wherein The non-stick rubber roller is driven by a pneumatic cylinder to press the heating roller.

3. The apparatus of claim 1 wherein, The traction rubber roller comprises a first traction rubber roller and a second traction rubber roller arranged in sequence; a traction steel roll is arranged below the first traction rubber roller for pressing the slitted film drawing line.

4. The apparatus of claim 3, wherein The winding roller is connected with the second traction rubber roller through the film guide roller.

5. The apparatus of claim 1 wherein, A mold temperature machine and a rotary joint are further arranged, the rotary joint is arranged in the heating roller, and the mold temperature machine is connected with the rotary joint through a first connecting pipe and a second connecting pipe.

6. The apparatus of claim 1 wherein, The temperature of the surface of the heating roller is 60-80℃.

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