Bag making machine and edge cutting device thereof
By designing an edge cutting device in the bag making machine, the broken plastic film is blown up with a fan and makes it float towards the winding mechanism, the problem of the cut plastic film being cut out after it is broken and cannot be rolled in and involved in the conveying mechanism, and efficient production without guarding is achieved.
Patent Information
- Application Number
- CN202421000315.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-10
AI Technical Summary
During the plastic film bag making process, the part of the plastic film that is cut after the edge cutting operation is prone to break, resulting in the inability to be rolled up and may be wound into the conveying mechanism, affecting production efficiency and increasing the cost of manual care.
An edge cutting device is designed, including a conveying mechanism, a cutting mechanism, a winding mechanism and a blowing mechanism. The winding frame is driven by the motor to rotate the cut-out part of the winding plastic film. When the cut-out part of the plastic film is broken, the fan blows the broken part, causing it to float towards the winding mechanism to prevent it from being wound into the conveying mechanism.
It effectively avoids the removal of plastic film into the conveying mechanism, reduces the need for manual care, reduces labor costs, and improves production efficiency.
Smart Images
Figure CN222628787U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bag making equipment, in particular to a bag making machine and a trimming device thereof. Background Art
[0002] When plastic film is made into plastic bags, it is sometimes necessary to trim the plastic film to remove the excess part at the edge of the plastic film; the remaining part in the middle of the plastic film will continue to be transported downstream through the conveying mechanism to make plastic bags. In order to prevent the cut part of the plastic film from being rolled into the conveying mechanism and affecting the normal transportation of the remaining part of the plastic film, the cut part of the plastic film needs to be rolled up.
[0003] During the production process, the cut part of the plastic film occasionally breaks; this will cause the cut part of the plastic film to be unable to continue to be rolled up and easily get caught in the conveying mechanism. In the past, workers were arranged to guard the trimming device to pull it out in time when the cut part of the plastic film broke. However, the workers are idle most of the time, which is not cost-effective from the perspective of reducing labor costs. Summary of the invention
[0004] The utility model aims to provide a trimming device which can prevent the cut portion of the plastic film from being rolled into a conveying mechanism. Based on the same inventive concept, another purpose of the utility model is to provide a bag making machine having the aforementioned trimming device.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] The trimming device comprises: a conveying mechanism for guiding the plastic film to move forward, a cutting mechanism for cutting the edge of the plastic film, a winding mechanism for winding up the cut portion of the plastic film, and an air blowing mechanism for blowing the cut portion of the plastic film toward the winding mechanism; wherein the conveying mechanism comprises: a guide roller; the cutting mechanism comprises: a cutter; the winding mechanism comprises: a winding frame and a motor for driving the winding frame to rotate; and the air blowing mechanism comprises: a fan for blowing air toward the winding frame.
[0007] Optionally, the blowing mechanism also includes: an extension rod for installing the fan, and a first bracket for installing the extension rod; the first bracket is provided with a guide hole, and the extension rod is limited in the guide hole; the first bracket has a third threaded hole extending from the guide hole to the outer surface, and is installed with a third bolt for tightening the extension rod.
[0008] Optionally, the fan is installed on the extension rod through an adjusting piece; one end of the adjusting piece is rotatably connected to the fan, and the other end is rotatably connected to the extension rod, and the rotation directions of the two ends are perpendicular to each other; the fan is adapted to have a first locking piece for locking it to the adjusting piece, and the adjusting piece is adapted to have a second locking piece for locking it to the extension rod.
[0009] Optionally, one of the adjusting member and the fan is provided with a first threaded hole, and the other is correspondingly provided with a first mounting hole; the first locking member is a first bolt installed in the first threaded hole; one of the adjusting member and the extension rod is provided with a second threaded hole, and the other is correspondingly provided with a second mounting hole; the second locking member is a second bolt installed in the second threaded hole; the first bolt, the second bolt and the extension rod are perpendicular to each other.
[0010] Optionally, the winding mechanism further includes: a second bracket and a limiting member installed on the second bracket; the lower part of the limiting member is placed on the winding frame to press the cut part of the plastic film blown up by the fan toward the winding frame.
[0011] Optionally, the winding mechanism further comprises: a wetting unit for wetting the cut portion of the plastic film.
[0012] Optionally, the limiting member is made of a sponge or a towel; the limiting member constitutes a component of the wetting unit; the wetting unit also includes a water tank, and the upper part of the limiting member is immersed below the water surface of the water tank.
[0013] Optionally, the cutting mechanism also includes: a guide rail extending in the front-to-back direction, a slider limited to the guide rail, and a tool holder installed on the slider; the cutter is detachably installed on the tool holder; the slider is provided with a fourth threaded hole, and a fourth bolt is installed to lock the slider on the guide rail.
[0014] Optionally, two blowing mechanisms are provided, distributed on the left and right sides of the plastic film.
[0015] The present application also provides a bag making machine, which has the aforementioned edge trimming device.
[0016] The working principle of the utility model is: the motor drives the reel frame to rotate to reel in the cut-off portion of the plastic film. When the cut-off portion of the plastic film breaks, the subsequent cut-off portion of the plastic film will be blown up by the fan and float in the direction of the reeling mechanism; in this way, the subsequent cut-off portion of the plastic film can be prevented from being rolled into the conveying mechanism. As the subsequent cut-off portion of the plastic film continues to lengthen, the portion away from the fan will float downward and entangle with the reel frame; in this way, the reel frame can continue to reel in the subsequent cut-off portion of the plastic film.
[0017] It can be seen from this that the beneficial effect of the utility model is that it can prevent the cut portion of the plastic film from being drawn into the conveying mechanism, and there is no need for continuous supervision by staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0019] Figure 1 is a structural schematic diagram of a trimming device;
[0020] Figure 2 A schematic diagram of a trimming device cutting an edge of a plastic film;
[0021] Figure 3 It is a connection diagram of the fan, the extension rod, the first bracket and the adjustment member.
[0022] Attached figures: 1. guide roller; 2. cutter; 3. winding frame; 4. motor; 5. fan; 6. extension rod; 7. first bracket; 8. adjusting member; 9. first bolt; 10. second bolt; 11. third bolt; 12. limit member; 13. water tank; 14. guide rail; 15. slider. DETAILED DESCRIPTION
[0023] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.
[0024] In the description of the present invention, it should be understood that the terms "front", "rear", "left", "right" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0026] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] The disclosure below provides many different embodiments or examples to implement 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 only examples and are not intended to limit the present invention.
[0028] The following is combined with Figure 1 ~Attached Figure 3 The embodiments of the present utility model are described in detail.
[0029] The embodiment of the utility model provides a trimming device. The trimming device includes: a conveying mechanism for guiding the plastic film to move, a cutting mechanism for cutting the edge of the plastic film, a winding mechanism for winding up the cut portion of the plastic film, and an air blowing mechanism for blowing the cut portion of the plastic film toward the winding mechanism. The conveying mechanism includes: a guide roller 1. It should be understood that the conveying mechanism is a prior art, and reference can be made to the existing bag making machine or trimming device, which will not be described in detail here. The cutting mechanism includes: a cutter 2. It should be understood that a cutter 2 made of an alloy is usually used; sometimes, a cutter 2 that is cut by laser can also be used. The winding mechanism includes: a winding frame 3, and a motor 4 that drives the winding frame 3 to rotate. The air blowing mechanism includes: a fan 5 that blows air toward the winding frame 3.
[0030] The specific implementation of the trimming device is described below: the motor 4 drives the reel 3 to rotate to reel in the cut portion of the plastic film. When the cut portion of the plastic film breaks, the subsequent cut portion of the plastic film will be blown up by the fan 5 and float in the direction of the reeling mechanism; in this way, the subsequent cut portion of the plastic film can be prevented from being rolled into the conveying mechanism. As the subsequent cut portion of the plastic film continues to lengthen, the portion away from the fan 5 will float downward and become entangled with the reel 3; in this way, the reel 3 can continue to reel in the subsequent cut portion of the plastic film. The utility model can prevent the cut portion of the plastic film from being rolled into the conveying mechanism, and does not require continuous supervision by staff, and is worth promoting and using.
[0031] Furthermore, the air blowing mechanism further includes: an extension rod 6 for installing the fan 5, and a first bracket 7 for installing the extension rod 6; the first bracket 7 is provided with a guide hole, and the extension rod 6 is limited in the guide hole; the first bracket 7 has a third threaded hole extending from the guide hole to the outer surface, and is provided with a third bolt 11 for tightening the extension rod 6. It should be understood that by moving the extension rod 6 in the front-back direction along the first bracket 7, the position of the fan 5 can be flexibly adjusted according to the actual needs; after adjusting the position of the fan 5, tightening the third bolt 11 can keep the extension rod 6 fixed.
[0032] Further, the fan 5 is mounted on the extension rod 6 through an adjustment member 8; one end of the adjustment member 8 is rotatably connected to the fan 5, and the other end is rotatably connected to the extension rod 6, and the rotation directions of the two ends are perpendicular to each other; the fan 5 is adapted to a first locking member that locks it with the adjustment member 8, and the adjustment member 8 is adapted to a second locking member that locks it with the extension rod 6. It should be understood that the fan 5 can rotate relative to the adjustment member 8, and the adjustment member 8 can rotate relative to the extension rod 6, so that the direction of the fan 5 can be flexibly adjusted according to the actual needs.
[0033] Further, one of the adjusting member 8 and the fan 5 is provided with a first threaded hole, and the other is provided with a first mounting hole accordingly; the first locking member is a first bolt 9 installed in the first threaded hole; one of the adjusting member 8 and the extension rod 6 is provided with a second threaded hole, and the other is provided with a second mounting hole accordingly; the second locking member is a second bolt 10 installed in the second threaded hole; the first bolt 9, the second bolt 10, and the extension rod 6 are perpendicular to each other. It should be understood that the first bolt 9 first passes through the first mounting hole and then connects with the first threaded hole; loosening the first bolt 9 can rotate the fan 5 relative to the adjusting member 8; tightening the first bolt 9 can keep the fan 5 fixed relative to the adjusting member 8. The second bolt 10 first passes through the second mounting hole and then connects with the second threaded hole; loosening the second bolt 10 can rotate the adjusting member 8 and the fan 5 relative to the extension rod 6; tightening the second bolt 10 can keep the fan 5 and the adjusting member 8 fixed relative to the extension rod 6.
[0034] Furthermore, the winding mechanism further includes: a second bracket, a stopper 12 mounted on the second bracket; the lower part of the stopper 12 is placed on the winding frame 3 to press the cut-off portion of the plastic film blown up by the fan 5 toward the winding frame 3. It should be understood that by providing the stopper 12, the cut-off portion of the plastic film can be blocked so that the end away from the fan 5 is accumulated between the stopper 12 and the winding frame 3, so that the cut-off portion of the plastic film can be entangled with the winding frame 3 faster and easier.
[0035] Furthermore, the winding mechanism further comprises: a wetting unit for wetting the cut portion of the plastic film. It should be understood that by slightly wetting the surface of the cut portion of the plastic film, when the cut portion of the plastic film is broken, the subsequent cut portion of the plastic film can be more easily attached to the cut portion of the plastic film wound on the winding frame 3, so that the subsequent cut portion of the plastic film is more easily entangled with the winding frame 3.
[0036] Furthermore, the limiting member 12 is made of a sponge or a towel; the limiting member 12 constitutes a component of the wetting unit; the wetting unit also includes a water tank 13, and the upper part of the limiting member 12 is immersed under the water surface of the water tank 13.
[0037] Furthermore, the cutting mechanism also includes: a guide rail 14 extending in the front-to-back direction, a slider 15 limited to the guide rail 14, and a tool holder installed on the slider 15; the cutter 2 is detachably installed on the tool holder; the slider 15 is provided with a fourth threaded hole, and a fourth bolt is installed to lock the slider 15 on the guide rail 14.
[0038] Furthermore, the blowing mechanism is provided with two, distributed on the left and right sides of the plastic film. It should be understood that sometimes cutting mechanisms are provided on the front and rear sides respectively to cut the front and rear edges of the plastic film respectively; in this case, a winding mechanism can be provided on the front and rear sides of the conveying mechanism respectively, and a blowing mechanism is provided accordingly.
[0039] The embodiment of the utility model further provides a bag making machine, which has the aforementioned trimming device. It should be understood that the utility model only needs to add a small fan 5, an extension rod 6, a first bracket 7, a second bracket, a sponge or a towel and other simple components that are easy to obtain on the basis of the original bag making machine, so as to achieve the effect of freeing up manpower and reducing labor costs, and has the value of being promoted and used.
[0040] Although specific embodiments of the present invention are described above, those skilled in the art should understand that various changes or modifications may be made to these embodiments without departing from the principle and essence of the present invention, but these changes and modifications are all within the scope of protection of the present invention.
Claims
1. A trimming device, characterized in that: include: A conveying mechanism for guiding the plastic film to travel; and A cutting mechanism for cutting the edge of the plastic film; and A reeling mechanism for reeling in the cut-off portion of the plastic film; and A blowing mechanism for blowing the cut-off portion of the plastic film toward the rewinding mechanism; in, The conveying mechanism comprises: a guide roller (1); The cutting mechanism comprises: a cutting knife (2); The reeling mechanism comprises: a reeling frame (3), and a motor (4) for driving the reeling frame (3) to rotate; The air blowing mechanism comprises a fan (5) for blowing air towards the winding frame (3).
2. The trimming device according to claim 1, characterized in that: The air blowing mechanism further comprises: an extension rod (6) for mounting the fan (5), and a first bracket (7) for mounting the extension rod (6); The first bracket (7) is provided with a guide hole, and the extension rod (6) is limited in the guide hole; The first bracket (7) has a third threaded hole extending from the guide hole to the outer surface, and is provided with a third bolt (11) for tightening the extension rod (6).
3. The trimming device according to claim 2, characterized in that: The fan (5) is mounted on the extension rod (6) via an adjusting member (8); One end of the adjusting member (8) is rotatably connected to the fan (5), and the other end is rotatably connected to the extension rod (6), and the rotation directions of the two ends are perpendicular to each other; The fan (5) is adapted to have a first locking member for locking it with the adjusting member (8), and the adjusting member (8) is adapted to have a second locking member for locking it with the extension rod (6).
4. The trimming device according to claim 3, characterized in that: One of the adjusting member (8) and the fan (5) is provided with a first threaded hole, and the other is correspondingly provided with a first mounting hole; the first locking member is a first bolt (9) mounted in the first threaded hole; One of the adjusting member (8) and the extension rod (6) is provided with a second threaded hole, and the other is correspondingly provided with a second mounting hole; the second locking member is a second bolt (10) mounted in the second threaded hole; The first bolt (9), the second bolt (10), and the extension rod (6) are perpendicular to each other.
5. The trimming device according to any one of claims 1 to 4, characterized in that: The winding mechanism further comprises: a second bracket and a limiting member (12) mounted on the second bracket; The lower part of the limiting member (12) rests on the reeling frame (3) so as to press the cut-off part of the plastic film blown up by the fan (5) toward the reeling frame (3).
6. The trimming device according to claim 5, characterized in that: The winding mechanism further comprises: a wetting unit for wetting the cut portion of the plastic film.
7. The trimming device according to claim 6, characterized in that: The limiting member (12) is made of a sponge or a towel; the limiting member (12) constitutes a component of a wetting unit; the wetting unit also includes a water tank (13), and the upper part of the limiting member (12) is immersed below the water surface of the water tank (13).
8. The trimming device according to any one of claims 1 to 4, characterized in that: The cutting mechanism further comprises: a guide rail (14) extending in the front-rear direction, a sliding block (15) limited on the guide rail (14), and a knife holder mounted on the sliding block (15); The cutting knife (2) is detachably mounted on the knife holder; The slider (15) is provided with a fourth threaded hole and is provided with a fourth bolt for locking the slider (15) on the guide rail (14).
9. The trimming device according to any one of claims 1 to 4, characterized in that: The air blowing mechanisms are provided with two, which are distributed on the left and right sides of the plastic film.
10. Bag making machine, characterized in that: A trimming device according to any one of claims 1 to 9.