Sheet slitting and rolling equipment

Abstract

The utility model relates to the technical field of rolled sheet production equipment, in particular to sheet slitting and rolling equipment. In the slitting process of the to-be-slit material, the roll diameter of the to-be-slit material in the unwinding device can be gradually reduced along with the slitting process, and then the unwinding tension of the to-be-slit material at the unwinding device is gradually reduced. And the rolling diameter of the slit material in the rolling device is gradually increased along with the slitting process, so that the rolling tension of the slit material at the rolling device is gradually increased. In the slitting process, the adjusting force of the first adjusting device on the unwinding tension is gradually reduced, and the adjusting force of the second adjusting device on the winding tension is gradually increased, so that the unwinding tension is prevented from being reduced along with the slitting process, and the winding tension is prevented from being increased along with the slitting process. In this way, the unwinding tension and the winding tension meet the expected requirements, and then it is guaranteed that the slitting and winding effects of the sheet meet the expected requirements.

Description

Technical Field

[0001] The present application relates to the technical field of calendered sheet production equipment, and in particular to a sheet slitting and winding equipment. Background Art

[0002] Calendering is an important polymer material processing technology. It uses the strong shear force between rollers and the corresponding processing temperature to squeeze and stretch the viscous material multiple times, eventually forming a thin sheet product with a specific width and thickness. Through calendering, plastic films or sheets can be produced. These materials have a wide range of uses, including but not limited to packaging materials in the fields of packaging, blister packaging, cosmetics, food, toys, printing, clothing, etc. For example, the PVC calendering sheet production line can produce various types of PVC transparent sheets, colored sheets, blister sheets, folding box sheets, printing sheets, window sticker sheets, etc.

[0003] In different usage scenarios, the requirements for sheet size are different. Usually, slitting is used to cut wider sheets into the expected width to meet the production needs of sheets of different widths.

[0004] Since the roll diameter of the sheet in the unwinding roller will become smaller and smaller, and the roll diameter of the sheet in the winding roller will become larger and larger, therefore, in the process of slitting the sheet, the tension change law of the sheet in the unwinding roller and the tension change law of the winding roller will be different, and the unwinding roller and the winding roller need to be controlled separately to control the unwinding tension and winding tension of the sheet to meet the expected requirements, thereby ensuring that the slitting and winding effects of the sheet meet the expected requirements.

[0005] It can be seen that how to ensure that the slitting and winding effects of the sheet meet the expected requirements during the sheet production process is a technical problem that needs to be solved urgently. Summary of the Invention

[0006] The present application provides a sheet slitting and winding device, which aims to solve the technical problem in the prior art of how to ensure that the slitting and winding effects of the sheet meet the expected requirements during the sheet production process.

[0007] The present application provides a sheet slitting and winding device, comprising:

[0008] An unwinding device, the unwinding device is used to unwind the material to be cut;

[0009] A slitting device, the slitting device is used to slit the material to be slit;

[0010] A winding device, which is used to wind up the slit materials;

[0011] a first adjusting device, the first adjusting device being used to adjust the unwinding tension of the unwinding device;

[0012] a second adjusting device, the second adjusting device being used to adjust the winding tension of the winding device;

[0013] During the slitting process, the first adjusting device gradually reduces the adjustment force of the unwinding tension, and the second adjusting device gradually increases the adjustment force of the rewinding tension.

[0014] Optionally, the unwinding device includes:

[0015] Mounting seat assembly;

[0016] an unwinding roller assembly, the unwinding roller assembly being rotatably mounted on the mounting seat assembly;

[0017] Wherein, the first adjusting device includes a brake assembly, the brake assembly is fixedly mounted on the mounting seat assembly, and the brake assembly is used to adjust the unwinding tension of the unwinding roller assembly.

[0018] Optionally, the unwinding device further includes:

[0019] A moving assembly, the moving assembly being used to drive the mounting seat assembly to move along the central axis direction of the unwinding roller assembly;

[0020] a detection sensor, the detection sensor being used to detect the material to be cut being pulled out from the unwinding roller assembly;

[0021] When the detection state of the detection sensor changes, the moving component drives the mounting seat component to move.

[0022] Optionally, the number of the detection sensors is two, and the detection sensors are respectively arranged on both sides of the unwinding roller assembly;

[0023] Wherein, the detection sensor is used to detect the edge of the material to be cut;

[0024] When at least one of the detection sensors fails to detect the material to be cut, the moving assembly drives the mounting base assembly to move, so that both of the detection sensors can detect the material to be cut.

[0025] Optionally, the unwinding device further includes:

[0026] A guide assembly is used to guide the mounting seat assembly.

[0027] Optionally, the winding device includes:

[0028] A winding roller assembly, the winding roller assembly is used to rewind the slit material;

[0029] Wherein, the second adjustment device includes a driving assembly, and the driving assembly is used to drive the winding roller assembly to rotate, and the driving assembly is used to change the rotation speed of the winding roller assembly to adjust the winding tension.

[0030] Optionally, the slitting device includes:

[0031] A slitting roller assembly, wherein the slitting roller assembly is provided with a plurality of slitting cutter assemblies, and the distance between the slitting cutter assemblies is adjustable;

[0032] A slitting bottom roller assembly, wherein the slitting bottom roller assembly is arranged side by side with the slitting roller assembly;

[0033] Wherein, during the slitting process, the material to be slit passes between the slitting roller assembly and the slitting bottom roller assembly, so that the slitting hob assembly slits the material to be slit.

[0034] Optionally, the unwinding device is provided with an unwinding tension sensor, and the unwinding tension sensor is used to detect the unwinding tension;

[0035] The winding device is provided with a winding tension sensor, and the winding tension sensor is used to detect the winding tension;

[0036] The first adjusting device adjusts the unwinding tension according to the unwinding tension parameter detected by the unwinding tension sensor;

[0037] The second adjustment sensor adjusts the winding tension according to the winding tension parameter detected by the winding tension sensor.

[0038] The beneficial effects achieved by the present application are as follows: the material to be cut is loaded into a roll in an unwinding device, the material to be cut is unwound by the unwinding device, the material to be cut is cut by the slitting device, and the cut material is rewound by the rewinding device. During the slitting process of the material to be cut, the roll diameter of the material to be cut in the unwinding device gradually decreases as the slitting process proceeds, thereby causing the unwinding tension of the material to be cut at the unwinding device to gradually decrease; on the other hand, the roll diameter of the cut material in the rewinding device gradually increases as the slitting process proceeds, thereby causing the rewinding tension of the cut material at the rewinding device to gradually increase. The unwinding tension is adjusted by a first adjusting device, thereby maintaining a stable unwinding tension during the slitting process; the rewinding tension is adjusted by a second adjusting device, thereby maintaining a stable rewinding tension during the slitting process. During the slitting process, the first adjustment device gradually reduces the unwinding tension, while the second adjustment device gradually increases the rewinding tension. This prevents the unwinding tension from decreasing as the slitting process progresses, and prevents the rewinding tension from increasing as the slitting process progresses. In this way, the unwinding tension and rewinding tension meet the expected requirements, thereby ensuring that the slitting and rewinding effects of the sheet meet the expected requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic diagram of the principle structure of the sheet slitting and winding equipment in the embodiment of the utility model.

[0040] Description of main unit symbols:

[0041] 10. Sheet slitting and winding equipment; 20. Unwinding device; 21. Mounting seat assembly; 22. Unwinding roller assembly; 23. Moving assembly; 24. Detection sensor; 25. Guide assembly; 26. Unwinding tension sensor; 30. Slitting device; 31. Slitting roller assembly; 32. Slitting hob assembly; 33. Slitting bottom roller assembly; 40. Rewinding device; 41. Rewinding roller assembly; 42. Rewinding tension sensor; 50. First adjusting device; 51. Braking assembly; 60. Second adjusting device; 61. Driving assembly. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals throughout represent the same or similar units or units with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and are not to be construed as limiting the present invention. In addition, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0043] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "left", "right", "horizontal", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 unit referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the described features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0045] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two units or interaction between two units. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0046] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0047] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but a person of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0048] See also Figure 1 In some embodiments of the present application, the present application provides a sheet slitting and rewinding device 10, comprising: an unwinding device 20, a slitting device 30, a rewinding device 40, a first adjusting device 50, and a second adjusting device 60. The unwinding device 20 is used to unwind the material to be slit. The slitting device 30 is used to slit the material to be slit. The rewinding device 40 is used to rewind the slit material. The first adjusting device 50 is used to adjust the unwinding tension of the unwinding device 20. The second adjusting device 60 is used to adjust the rewinding tension of the rewinding device 40. During the slitting process, the adjustment force of the unwinding tension by the first adjusting device 50 gradually decreases, and the adjustment force of the rewinding tension by the second adjusting device 60 gradually increases.

[0049] The material to be slit is loaded into a roll in the unwinding device 20. The unwinding device 20 unwinds the material to be slit, the slitting device 30 slits the material to be slit, and the rewinding device 40 rewinds the slit material. During the slitting process, the roll diameter of the material to be slit in the unwinding device 20 gradually decreases as the slitting process progresses, resulting in a gradual decrease in the unwinding tension of the material to be slit at the unwinding device 20. On the other hand, the roll diameter of the slit material in the rewinding device 40 gradually increases as the slitting process progresses, resulting in a gradual increase in the rewinding tension of the slit material at the rewinding device 40. The unwinding tension is adjusted by the first adjustment device 50 to maintain a stable unwinding tension during the slitting process, and the rewinding tension is adjusted by the second adjustment device 60 to maintain a stable rewinding tension during the slitting process. During the slitting process, the first adjusting device 50 gradually reduces the unwinding tension and the second adjusting device 60 gradually increases the rewinding tension, thereby preventing the unwinding tension from decreasing as the slitting process progresses and preventing the rewinding tension from increasing as the slitting process progresses. In this way, the unwinding tension and rewinding tension meet the expected requirements, thereby ensuring that the slitting and rewinding effects of the sheet meet the expected requirements.

[0050] In some embodiments of the present application, the unwinding device 20 includes a mounting assembly 21 and an unwinding roller assembly 22. The unwinding roller assembly 22 is rotatably mounted on the mounting assembly 21. The first adjustment device 50 includes a brake assembly 51 fixedly mounted on the mounting assembly 21 and configured to adjust the unwinding tension of the unwinding roller assembly 22.

[0051] During the slitting process of the material to be slit, the material is reeled by the rotation of the reeling device 40. During the process of the reeling device 40 reeling the slit material, the reeling device 40 provides power through the linkage effect of the material to be slit, driving the unwinding roller assembly 22 in the unwinding device 20 to rotate, thereby pulling the material to be slit out of the unwinding device 20. The brake assembly 51 provides braking force to the unwinding roller assembly 22, thereby adjusting the speed of the unwinding roller assembly 22 and thus adjusting the unwinding tension.

[0052] It is understood that the greater the braking force provided by the brake assembly 51 to the unwinding roller assembly 22, the greater the pulling force required when the unwinding roller assembly 22 is driven to rotate, thereby increasing the unwinding tension. Conversely, reducing the braking force provided by the brake assembly 51 to the unwinding roller assembly 22 can reduce the unwinding tension.

[0053] In some embodiments of the present application, the unwinding device 20 further includes a moving assembly 23 and a detection sensor 24. The moving assembly 23 is configured to drive the mounting base assembly 21 to move along the central axis of the unwinding roller assembly 22. The detection sensor 24 is configured to detect the material to be slit being pulled from the unwinding roller assembly 22. When the detection state of the detection sensor 24 changes, the moving assembly 23 drives the mounting base assembly 21 to move.

[0054] The material to be cut is detected by the detection sensor 24, thereby preventing the material to be cut from deviating during the cutting process, thereby preventing the width of the cut material from being uneven, thereby improving the uniformity and accuracy of the width of the cut material and ensuring product quality.

[0055] In some embodiments of the present application, the detection sensor 24 includes an infrared sensor.

[0056] When the detection sensor 24 fails to detect the material to be cut, it indicates that the material to be cut has deviated, and the moving assembly 23 drives the mounting base assembly 21 to move, so that the mounting base assembly 21, the unwinding roller assembly 22, and the material to be cut move together, so that the material to be cut returns to the position before the deviation, thereby ensuring the uniformity of the width of the cut material. When the detection sensor 24 can detect the material to be cut again, it indicates that the material to be cut has returned to the position before the deviation.

[0057] In some embodiments of the present application, there are two detection sensors 24, one on each side of the unwinding roller assembly 22. The detection sensors 24 are used to detect the edge of the material to be cut. When at least one detection sensor 24 fails to detect the material to be cut, the moving assembly 23 drives the mounting base assembly 21 to move so that both detection sensors 24 can detect the material to be cut.

[0058] When at least one detection sensor 24 fails to detect the material to be cut, it indicates that the material to be cut has deviated, and the moving assembly 23 drives the mounting seat assembly 21 to move so that the material to be cut returns to the position before the deviation. At this time, both detection sensors 24 can detect the material to be cut.

[0059] In some embodiments of the present application, the unwinding device 20 further includes a guide assembly 25 . The guide assembly 25 is used to guide the mounting seat assembly 21 .

[0060] As the moving assembly 23 drives the mounting assembly 21 to move, the guide assembly 25 guides the mounting assembly 21, thereby making the movement of the mounting assembly 21 smoother and preventing the mounting assembly 21 from shaking during movement. This prevents shaking of the mounting assembly 21 during movement from causing shaking of the material to be cut during the cutting process, thereby preventing uneven width of the cut material due to shaking of the material to be cut. In this way, the uniformity of the width of the cut material is improved, ensuring product quality.

[0061] In some embodiments of the present application, the winding device 40 includes a winding roller assembly 41. The winding roller assembly 41 is used to rewind the slit material. The second adjustment device 60 includes a drive assembly 61. The drive assembly 61 is used to rotate the winding roller assembly 41. The drive assembly 61 is used to adjust the winding tension by changing the speed of the winding roller assembly 41.

[0062] During the slitting process, the drive assembly 61 drives the reel assembly 41 to rotate, which in turn causes the reeling device 40 to reel the material. As the reeling device 40 reels the slit material, the higher the speed of the reel assembly 41, the greater the reeling tension; the lower the speed of the reel assembly 41, the lower the reeling tension. Thus, by adjusting the speed of the reel assembly 41 through the drive assembly 61, and thereby adjusting the reeling tension, excessive reeling tension can be avoided, preventing the slit material from being stretched, thereby ensuring product quality.

[0063] In some embodiments of the present application, the slitting device 30 includes a slitting roller assembly 31 and a slitting bottom roller assembly 33. The slitting roller assembly 31 is provided with multiple slitting cutter assemblies 32, and the distance between the slitting cutter assemblies 32 is adjustable. The slitting bottom roller assembly 33 is arranged side by side with the slitting roller assembly 31. During the slitting process, the material to be slitting passes between the slitting roller assembly 31 and the slitting bottom roller assembly 33, so that the slitting cutter assemblies 32 slit the material to be slitting.

[0064] During the slitting process, the slitting roller assembly 32 slits the material to be slit so that the width of the slit material meets the desired requirements. By adjusting the distance between the slitting roller assemblies 32, the width of the slit material can be adjusted, so that the sheet slitting and winding device 10 can adapt to the slitting requirements of sheets of different widths.

[0065] In some embodiments of the present application, the unwinding device 20 is provided with an unwinding tension sensor 26 for detecting the unwinding tension. The rewinding device 40 is provided with a rewinding tension sensor 42 for detecting the rewinding tension. The first adjustment device 50 adjusts the unwinding tension based on the unwinding tension parameter detected by the unwinding tension sensor 26. The second adjustment sensor adjusts the rewinding tension based on the rewinding tension parameter detected by the rewinding tension sensor 42.

[0066] The unwinding tension sensor 26 obtains the unwinding tension parameter, allowing the first adjustment device 50 to adjust the unwinding tension based on the unwinding tension parameter, thereby maintaining the unwinding tension within a preset range. The rewinding tension sensor 42 obtains the rewinding tension parameter, allowing the second adjustment device 60 to adjust the rewinding tension based on the rewinding tension parameter, thereby maintaining the rewinding tension within a preset range. This prevents excessive tension from causing the lace material to sag, and also prevents insufficient tension from causing unsatisfactory slitting results. Thus, by adjusting the tension, product quality is guaranteed.

[0067] Throughout this specification, references to terms such as "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that a specific feature, structure, material, or characteristic described in conjunction with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0068] Furthermore, the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A sheet slitting and winding device, characterized in that: include: An unwinding device, the unwinding device is used to unwind the material to be cut; A slitting device, the slitting device is used to slit the material to be slit; A winding device, which is used to wind up the slit materials; a first adjusting device, the first adjusting device being used to adjust the unwinding tension of the unwinding device; a second adjusting device, the second adjusting device being used to adjust the winding tension of the winding device; During the slitting process, the first adjusting device gradually reduces the adjustment force of the unwinding tension, and the second adjusting device gradually increases the adjustment force of the rewinding tension.

2. The sheet slitting and winding equipment according to claim 1, characterized in that: The unwinding device comprises: Mounting seat assembly; an unwinding roller assembly, the unwinding roller assembly being rotatably mounted on the mounting seat assembly; Wherein, the first adjusting device includes a brake assembly, the brake assembly is fixedly mounted on the mounting seat assembly, and the brake assembly is used to adjust the unwinding tension of the unwinding roller assembly.

3. The sheet slitting and winding equipment according to claim 2, characterized in that: The unwinding device also includes: A moving assembly, the moving assembly being used to drive the mounting seat assembly to move along the central axis direction of the unwinding roller assembly; a detection sensor, the detection sensor being used to detect the material to be slit pulled out from the unwinding roller assembly; When the detection state of the detection sensor changes, the moving component drives the mounting seat component to move.

4. The sheet slitting and winding equipment according to claim 3, characterized in that: There are two detection sensors, which are respectively arranged on both sides of the unwinding roller assembly; Wherein, the detection sensor is used to detect the edge of the material to be cut; When at least one of the detection sensors fails to detect the material to be cut, the moving assembly drives the mounting base assembly to move, so that both of the detection sensors can detect the material to be cut.

5. The sheet slitting and winding equipment according to claim 3, characterized in that: The unwinding device also includes: A guide assembly is used to guide the mounting seat assembly.

6. The sheet slitting and winding equipment according to claim 1, characterized in that: The winding device comprises: A winding roller assembly, the winding roller assembly is used to rewind the slit material; Wherein, the second adjustment device includes a driving assembly, and the driving assembly is used to drive the winding roller assembly to rotate, and the driving assembly is used to change the rotation speed of the winding roller assembly to adjust the winding tension.

7. The sheet slitting and winding equipment according to claim 1, characterized in that: The slitting device comprises: A slitting roller assembly, wherein the slitting roller assembly is provided with a plurality of slitting cutter assemblies, and the distance between the slitting cutter assemblies is adjustable; A slitting bottom roller assembly, wherein the slitting bottom roller assembly is arranged side by side with the slitting roller assembly; Wherein, during the slitting process, the material to be slit passes between the slitting roller assembly and the slitting bottom roller assembly, so that the slitting hob assembly slits the material to be slit.

8. The sheet slitting and winding equipment according to claim 1, characterized in that: The unwinding device is provided with an unwinding tension sensor, and the unwinding tension sensor is used to detect the unwinding tension; The winding device is provided with a winding tension sensor, and the winding tension sensor is used to detect the winding tension; The first adjusting device adjusts the unwinding tension according to the unwinding tension parameter detected by the unwinding tension sensor; The second adjustment sensor adjusts the winding tension according to the winding tension parameter detected by the winding tension sensor.

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