Tensioning device for plastic film printing
By adopting a combined structure of rocker and counterweight ring in the tensioning device for plastic film printing, the problem of untimely adjustment of existing tensioning devices is solved, and the rapid tensioning and fitting of plastic film is achieved, and the working efficiency of printing is improved.
Patent Information
- Application Number
- CN202421015813.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-11
AI Technical Summary
The existing tensioning devices are not adjusted in time during plastic film printing, resulting in the inability to accurately adjust the tension, which can easily cause wrinkles and tear of the plastic film, reducing the printing efficiency.
A tensioning device for plastic film printing is designed, and a combined structure of rocker and counterweight ring is adopted. Through the inclination of rocker and the adjustment of counterweight ring, the plastic film can be quickly tensioned and fitted, and frequent adjustments are avoided.
The device can respond quickly and adjust the tension accurately, reducing damage to the plastic film during the printing process and improving the printing efficiency.
Smart Images
Figure CN222612515U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plastic film tensioning mechanisms, in particular to a tensioning device used for plastic film printing. Background Art
[0002] Plastic film is a film made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. It is used for packaging and as a coating layer. Plastic packaging has been widely used in food, medicine, chemical industry and other fields. With the widespread use of plastic film, the demand for plastic film packaging will also increase. Sales manufacturers will print different graphics according to customer needs. A tensioning device will be used in the plastic film printing process to adjust the tension of the plastic film.
[0003] The existing tensioning device is driven by a motor, and is prone to the problem of untimely adjustment, which causes the user to fail to adjust the tension properly, thereby causing wrinkles and tears in the plastic film during printing, reducing the efficiency of plastic film printing. Therefore, those skilled in the art provide a tensioning device for plastic film printing to solve the problems raised in the above background technology. Utility Model Content
[0004] In view of the deficiencies of the prior art, the utility model provides a tensioning device for plastic film printing to solve the problem that the existing tensioning mechanism is not adjusted in time, resulting in the user's inability to adjust the tension properly, thereby reducing the work efficiency of plastic film printing.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a tensioning device for plastic film printing, comprising a conveying bracket and a counterweight ring, a conveying roller group is installed on one side wall of the conveying bracket, a fixed bracket is arranged on the front side of the conveying roller group, a positioning hole is opened at the upper end of the fixed bracket, a rocker is arranged on the rear side of the positioning hole, a positioning shaft is installed in the middle of the rocker, a fixed shaft is installed on the rear side of both ends of the rocker, a roller sleeve is sleeved on the fixed shaft, and a hanging rod is installed on the front side of both ends of the rocker.
[0006] Preferably, the rocker is rotatably engaged with the positioning hole on the fixed bracket through the positioning shaft, the rocker tilts, and during the tilting process, the roller sleeves at both ends cooperate with the conveying roller group to achieve a tensioning effect on the plastic film.
[0007] Preferably, the counterweight ring is movably connected to the hanging rod, so the counterweight ring can be increased or decreased, and the counterweight can be adjusted according to the rotation speed of the winding mechanism or the thickness and toughness of the plastic film to avoid damage to the plastic film.
[0008] Preferably, the roller sleeve is rotatably sleeved with the fixed shaft.
[0009] Preferably, the fixed bracket is fixedly installed with the conveying bracket.
[0010] Compared with the prior art, the utility model provides a tensioning device for plastic film printing, which has the following beneficial effects:
[0011] Through design, a hanging rod is installed on the front side of the rocker, and a counterweight ring is arranged on the hanging rod. When the plastic film is conveyed in the conveying roller, the counterweight ring is hung on the hanging rod at one end of the rocker. Under the action of the counterweight ring, the rocker tilts, and in the tilting process, the roller sleeves at both ends cooperate with the conveying roller group to achieve the tensioning effect on the plastic film. Due to the setting of the counterweight ring, the roller sleeves can effectively fit the plastic film, and under the action of the counterweight ring, the tensioning mechanism can respond quickly, and there is no need for frequent tensioning adjustments. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of a tensioning device for plastic film printing provided in an embodiment of the present application.
[0013] Figure 2 It is a structural schematic diagram of a positioning hole in a tensioning device for plastic film printing provided in an embodiment of the present application.
[0014] Figure 3 It is a schematic diagram of the structure of a hanging rod in a tensioning device for plastic film printing provided in an embodiment of the present application.
[0015] In the figure: 1. conveying bracket; 2. conveying roller group; 3. fixed bracket; 301, positioning hole; 4. rocker; 5. positioning shaft; 6. hanging rod; 7. counterweight ring; 8. fixed shaft; 9. roller sleeve. DETAILED DESCRIPTION
[0016] 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 in 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.
[0017] The utility model provides a technical solution, a tensioning device for plastic film printing, please refer to Figure 1 , Figure 2 , including a conveying bracket 1 and a counterweight ring 7, a conveying roller group 2 is installed on one side wall of the conveying bracket 1, a fixed bracket 3 is arranged on the front side of the conveying roller group 2, the fixed bracket 3 is fixedly installed with the conveying bracket 1, a positioning hole 301 is opened on the upper end of the fixed bracket 3, and a rocker 4 is arranged on the rear side of the positioning hole 301, please refer to Figure 1 , Figure 3 A positioning shaft 5 is installed in the middle of the rocker 4, and a fixed shaft 8 is installed on the rear sides of both ends of the rocker 4. A roller sleeve 9 is sleeved on the fixed shaft 8, and the roller sleeve 9 is rotatably sleeved with the fixed shaft 8. A hanging rod 6 is installed on the front sides of both ends of the rocker 4, and the counterweight ring 7 is movably connected to the hanging rod 6. The rocker 4 is rotatably connected with the positioning hole 301 on the fixed bracket 3 through the positioning shaft 5, and the counterweight ring 7 is hung on the hanging rod 6 at one end of the rocker 4. Under the action of the counterweight ring 7, the rocker 4 tilts, and during the tilting process, the roller sleeves 9 at both ends cooperate with the conveying roller group 2 to achieve the tensioning effect of the plastic film.
[0018] See also Figure 3 The counterweight ring 7 is movably connected to the hanging rod 6, so the counterweight ring 7 can be increased or decreased. Therefore, the counterweight can be adjusted according to the rotation speed of the winding mechanism or the thickness and toughness of the plastic film to avoid damage to the plastic film.
[0019] In the present invention, a conveying roller group 2 is installed on one side of the conveying bracket 1, and a fixed bracket 3 is installed on the conveying bracket 1 opposite to the conveying roller group 2. A positioning hole 301 is opened at the end of the fixed bracket 3, and a rocker 4 is arranged on the side of the fixed bracket 3 facing the conveying roller group 2. A positioning shaft 5 is installed in the middle of the rocker 4. The rocker 4 is rotatably connected with the positioning hole 301 on the fixed bracket 3 through the positioning shaft 5, and a fixed shaft 8 is installed on the rear side of both ends of the rocker 4. A roller sleeve 9 is installed on the fixed shaft 8 to cooperate with the conveying roller group 2 to tension the conveyed plastic film;
[0020] A hanging rod 6 is installed on the front side of the rocker 4, and a counterweight ring 7 is arranged on the hanging rod 6. When the conveying roller group 2 conveys the plastic film, the counterweight ring 7 is hung on the hanging rod 6 at one end of the rocker 4. Under the action of the counterweight ring 7, the rocker 4 tilts, and in the tilting process, the roller sleeves 9 at both ends cooperate with the conveying roller group 2 to achieve the tensioning effect on the plastic film. Due to the setting of the counterweight ring 7, the roller sleeve 9 can effectively fit the plastic film, and under the action of the counterweight ring 7, the tensioning mechanism can react quickly, and there is no need to frequently adjust the tensioning.
[0021] Furthermore, the weight ring 7 can be increased or decreased, so the weight can be adjusted according to the rotation speed of the winding mechanism or the thickness and toughness of the plastic film to avoid damage to the plastic film.
[0022] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0023] In this document, unless otherwise clearly stipulated and limited, terms such as "installation", "setting", "connection", "fixation", and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical 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. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in this utility model according to the specific circumstances.
[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tensioning device for plastic film printing, comprising a conveying support (1) and a counterweight ring (7), characterized in that: A conveying roller group (2) is installed on one side wall of the conveying bracket (1); a fixed bracket (3) is arranged on the front side of the conveying roller group (2); a positioning hole (301) is opened at the upper end of the fixed bracket (3); a rocker (4) is arranged on the rear side of the positioning hole (301); a positioning shaft (5) is installed in the middle of the rocker (4); fixed shafts (8) are installed on the rear sides of both ends of the rocker (4); a roller sleeve (9) is sleeved on the fixed shaft (8); and hanging rods (6) are installed on the front sides of both ends of the rocker (4).
2. A tensioning device for plastic film printing according to claim 1, characterized in that: The counterweight ring (7) is movably connected to the hanging rod (6).
3. A tensioning device for plastic film printing according to claim 1, characterized in that: The roller sleeve (9) is rotatably sleeved with the fixed shaft (8).
4. A tensioning device for plastic film printing according to claim 1, characterized in that: The rocker (4) is rotatably engaged with the positioning hole (301) on the fixed bracket (3) via the positioning shaft (5).
5. The tensioning device for plastic film printing according to claim 1, characterized in that: The fixed support (3) is fixedly mounted on the conveying support (1).