Slitting and unwinding device with variable film width
By designing a variable film width slitting and unwinding device, the retractable chuck seat and the expansion and contraction function of the air-swelling shaft body is solved, the problem of uneven end surfaces of the narrow film roll is improved, and the utilization rate of the product is reduced and the production cost is reduced. .
Patent Information
- Application Number
- CN202421185054.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-28
AI Technical Summary
On the PP film production line, the narrow film roll after slitting often has appearance defects such as uneven end faces or loose rolls, resulting in a decrease in the best yield rate and an increase in production costs.
A variable film width slitting and unwinding device is designed, using a detachable drive side chuck seat and a non-drive side chuck seat, which is connected to the gas expansion shaft body through a quick disassembly mechanism to adjust the gap distance and gas expansion. The expansion and contraction of the shaft body, combined with the motor and belt transmission mechanism, can cut the wide film roll at one time and perform secondary correction and adjustment of the narrow film roll.
It realizes the convenience of operation and wide application scope, improves product utilization, reduces production costs, and effectively solves the appearance defects of narrow film rolls.
Smart Images
Figure CN222273669U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of slitting and unwinding devices, in particular to a slitting and unwinding device with variable film width. Background Art
[0002] On the PP film production line, each production line needs to be equipped with 1-2 slitting machines, which will cut the large film roll wound by the film drawing production line into multiple small rolls of specified width. The length of the unwinding roller of the slitting machine matches the length of the winding steel roll core of the film drawing production line.
[0003] In the actual slitting process of wide film rolls, due to various reasons such as equipment or process, some narrow film rolls after slitting have appearance defects such as uneven end faces or loose rolls. It is very inconvenient to perform corrections and adjustments later, which can easily lead to a decrease in the rate of high-quality products and an increase in production costs. Utility Model Content
[0004] The utility model aims to provide a slitting and unwinding device with variable film width, so as to solve the defects in the above-mentioned background technology.
[0005] The purpose of the utility model can be achieved through the following technical solutions:
[0006] A slitting and unwinding device with variable film width, comprising a driving side chuck seat and a non-driving side chuck seat with a gap arrangement, wherein the driving side chuck seat is rotated and installed on a driving side production line frame, and the non-driving side chuck seat is rotated and installed on a non-driving side production line frame;
[0007] The driving side chuck seat is detachably connected to one end of the gas-expanding shaft body through a quick release mechanism, and the non-driving side chuck seat is detachably connected to the other end of the gas-expanding shaft body through a quick release mechanism.
[0008] As a further solution of the utility model: the quick release mechanism is evenly arranged in plurality along the side end of the gas-inflatable shaft.
[0009] As a further solution of the utility model: the quick-release mechanism includes a spring and a gas-expanding shaft locating pin, the spring is placed in a slide groove opened at the side end of the gas-expanding shaft body, and is elastically abuttingly connected to the gas-expanding shaft locating pin, and the gas-expanding shaft locating pin is slidably installed in the slide groove.
[0010] As a further solution of the utility model: the driving side chuck seat and the non-driving side chuck seat are respectively provided with a locking hole groove corresponding to the positioning pin of the air expansion shaft.
[0011] As a further solution of the utility model: the gap distance between the driving side chuck seat and the non-driving side chuck seat can be adjusted.
[0012] As a further solution of the utility model: a plurality of steel coil core positioning pins are respectively provided on the end faces directly facing the driving side chuck seat and the non-driving side chuck seat.
[0013] As a further solution of the utility model: a motor is fixedly installed on the frame of the driving side production line, and the motor is driven and connected to the driving side chuck seat through a belt transmission mechanism.
[0014] Beneficial effects of the utility model:
[0015] (1) The present application uses a quick-release mechanism to detachably connect the air-inflated shaft to the driving side chuck seat and the non-driving side chuck seat, respectively, so as to realize the operation of unwinding a wide film roll by cutting a wide film roll once and unwinding a narrow film roll by cutting a narrow film roll twice, which is easy to operate and has a wide range of applications.
[0016] (2) By adopting the technical solution of the present application, the existing slitting equipment can be used to carry out structural design improvement. The slitting and unwinding device of the present application can not only normally slit the wide film rolls wound up by the film drawing production line, but also perform secondary slitting on the narrow film rolls with appearance defects, thereby effectively improving product utilization and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The utility model is further described below in conjunction with the accompanying drawings.
[0018] Figure 1 This is a schematic diagram of the installation structure of the gas expansion shaft of the utility model;
[0019] Figure 2 It is a schematic diagram of the installation structure of the driving side chuck seat and the non-driving side chuck seat of the utility model;
[0020] Figure 3 It is a schematic diagram of the structure of the gas expansion shaft of the utility model, in which the two ends thereof are respectively provided with quick-release mechanisms;
[0021] Figure 4 It is a schematic cross-sectional view of the driving side chuck seat of the utility model;
[0022] Figure 5 It is a cross-sectional schematic diagram of a non-driving side chuck seat of the utility model.
[0023] In the figure: 1. Driving side chuck seat; 2. Non-driving side chuck seat; 3. Driving side production line frame; 4. Non-driving side production line frame; 5. Pneumatic shaft; 50. Slide groove; 6. Quick release mechanism; 60. Spring; 61. Pneumatic shaft locating pin; 7. Locking hole groove; 8. Steel coil core locating pin; 9. Motor. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] In the description of the present invention, it should be understood that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the 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 element 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; in the description of the present invention, "multiple" and "several" mean at least two, for example two, three, etc., unless otherwise clearly and specifically defined.
[0026] See also Figures 1 to 5 As shown, the utility model is a slitting and unwinding device with variable film width, including a driving side chuck seat 1 and a non-driving side chuck seat 2 with a gap setting, the driving side chuck seat 1 is rotated and installed on the driving side production line frame 3, and the non-driving side chuck seat 2 is rotated and installed on the non-driving side production line frame 4; the driving side chuck seat 1 is detachably connected to one end of the air-inflating shaft 5 through a quick-release mechanism 6, and the non-driving side chuck seat 2 is detachably connected to the other end of the air-inflating shaft 5 through the quick-release mechanism 6.
[0027] When the slitting and unwinding device of the present application is used for wide film rolls, the wide film roll core is sleeved and installed on the air-inflated shaft body 5. The expansion block on the air-inflated shaft body 5 can inflate and fix the wide film roll core, so as to achieve one-time slitting and unwinding of the wide film roll.
[0028] When the slitting and unwinding device of the present application is used for the operation of the narrow film roll after slitting, the air-inflating shaft 5 can be easily removed through the quick-release mechanism 6. The removed air-inflating shaft 5 is easy to be installed on the narrow film roll core, and the air-inflating shaft 5 is installed on the driving side chuck seat 1 and the non-driving side chuck seat 2 again through the quick-release mechanism 6, and the narrow film roll core is adjusted to a suitable slitting position. The expansion block on the air-inflating shaft 5 structure can inflate and fix the narrow film roll core, so as to realize the secondary slitting and correction of the narrow film roll after unwinding, thereby solving the appearance defects of the narrow film roll after slitting, such as uneven end faces or loose rolls. The operation and application are convenient, and the rate of high-quality products can be effectively improved, and the production cost can be reduced.
[0029] In this specific embodiment, a plurality of quick-release mechanisms 6 are evenly arranged along the side ends of the gas-inflatable shaft body 5 . The evenly arranged plurality of quick-release mechanisms 6 facilitate stable and reliable installation and connection of the gas-inflatable shaft body 5 , thereby ensuring the quality of the rotary unwinding.
[0030] In this specific embodiment, the quick-release mechanism 6 includes a spring 60 and an air-expansion shaft locating pin 61. The spring 60 is placed in a slide groove 50 opened at the side end of the air-expansion shaft body 5, and is elastically connected to the air-expansion shaft locating pin 61, and the air-expansion shaft locating pin 61 is slidably installed in the slide groove 50; the driving side chuck seat 1 and the non-driving side chuck seat 2 are respectively provided with a locking hole groove 7 corresponding to the air-expansion shaft locating pin 61; during the operation and application of the quick-release mechanism 6, when the spring 60 elastically contacts the air-expansion shaft locating pin 61 and enters the locking hole groove 7, the driving side chuck seat 1, the air-expansion shaft body 5 and the non-driving side chuck seat 2 are quickly installed and connected, so as to realize the rotary unwinding action; when the air-expansion shaft locating pin 61 is pulled to compress the spring 60 and move away from the locking hole groove 7, the driving side chuck seat 1, the air-expansion shaft body 5 and the non-driving side chuck seat 2 are quickly disconnected, so as to facilitate the rapid removal of the air-expansion shaft body 5 for replacement and installation of a wide film roll core or a narrow film roll core, which is convenient to operate and has high practicality.
[0031] In this specific embodiment, the gap distance between the driving side chuck seat 1 and the non-driving side chuck seat 2 can be adjusted. During the unwinding and slitting process of film roll cores with different widths, the driving side production line frame 3 and the non-driving side production line frame 4 connected at their telescopic ends by cylinders can be slid closer or moved away along the guide rails to adjust the gap distance between the driving side chuck seat 1 and the non-driving side chuck seat 2, thereby realizing the unwinding and slitting of film roll cores with different widths, and having a wide range of operating applications.
[0032] In this specific embodiment, a plurality of steel core positioning pins 8 are respectively provided on the facing end faces of the driving side chuck seat 1 and the non-driving side chuck seat 2. The steel core positioning pins 8 cooperate with the chuck seat to fix the film core unwinding by an external clamping method.
[0033] In this specific embodiment, a motor 9 is fixedly installed on the driving side production line frame 3, and the motor 9 is driven and connected to the driving side chuck seat 1 through a belt transmission mechanism, so that the driving side chuck seat 1 can be driven to rotate by the motor 9, so that the driving side chuck seat 1, the air-inflated shaft 5 and the non-driving side chuck seat 2 can rotate and unwind as a whole.
[0034] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.
Claims
1. A slitting and unwinding device with variable film width, characterized in that: It comprises a driving side chuck seat (1) and a non-driving side chuck seat (2) with a gap arrangement, wherein the driving side chuck seat (1) is rotated and installed on a driving side production line frame (3), and the non-driving side chuck seat (2) is rotated and installed on a non-driving side production line frame (4); The driving side chuck seat (1) is detachably connected to one end of the gas expansion shaft (5) via a quick release mechanism (6), and the non-driving side chuck seat (2) is detachably connected to the other end of the gas expansion shaft (5) via a quick release mechanism (6).
2. A slitting and unwinding device with variable film width according to claim 1, characterized in that: A plurality of quick-release mechanisms (6) are evenly distributed along the side ends of the inflatable shaft body (5).
3. The slitting and unwinding device with variable film width according to claim 2, characterized in that: The quick release mechanism (6) comprises a spring (60) and a gas expansion shaft positioning pin (61); the spring (60) is placed in a slide groove (50) provided at the side end of the gas expansion shaft body (5) and is elastically contact-connected with the gas expansion shaft positioning pin (61); the gas expansion shaft positioning pin (61) is slidably installed in the slide groove (50).
4. The slitting and unwinding device with variable film width according to claim 3, characterized in that: The driving side chuck seat (1) and the non-driving side chuck seat (2) are respectively provided with a locking hole groove (7) corresponding to the air expansion shaft positioning pin (61).
5. The slitting and unwinding device with variable film width according to claim 1, characterized in that: The gap distance between the driving side chuck seat (1) and the non-driving side chuck seat (2) can be adjusted.
6. The slitting and unwinding device with variable film width according to claim 1, characterized in that: A plurality of steel coil core positioning pins (8) are respectively provided on the end surfaces facing each other of the driving side chuck seat (1) and the non-driving side chuck seat (2).
7. The slitting and unwinding device with variable film width according to claim 1, characterized in that: A motor (9) is fixedly mounted on the drive side production line frame (3), and the motor (9) is driven and connected to the drive side chuck seat (1) via a belt transmission mechanism.