CPP film drawing machine
By designing the roller and limit wheel structure of the CPP film stretching machine, the automatic adjustment of film tension was realized, the problem of wrinkles during film winding was solved, and production quality and efficiency were improved.
Patent Information
- Application Number
- CN202520338417.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-28
AI Technical Summary
CPP film cannot automatically adjust its tension after stretching, resulting in wrinkles during the winding process and affecting production quality.
A CPP film stretching machine was designed. Through the combination of roller structure and limiting wheel, the tension of the film can be automatically adjusted. The lifting and lowering of the roller is controlled by a motor-driven long screw and lifting screw sleeve. With the cooperation of spring and slider, the film can be limited and tensioned.
This effectively prevents wrinkles from forming on the film during the winding process, improving production quality and efficiency.
Smart Images
Figure CN223803085U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of film stretching machine, specifically a kind of CPP film stretching machine. BACKGROUND
[0002] CPP film is cast polypropylene film, is the polypropylene film produced using casting process, according to different uses can be divided into general CPP film, aluminized grade CPP film and cooking grade CPP film etc., since it has good transparency, high gloss, strong moisture resistance, high heat resistance, easy to heat seal and other advantages, application is very extensive on market, especially mainly food packaging, CPP film needs to use stretching machine to stretch during production.
[0003] However, in the implementation of related technology, it is found that the tension of the film after stretching cannot be automatically adjusted during use, which causes wrinkles in the CPP film during winding, affecting the production quality of the film.
[0004] Therefore, we propose a CPP film stretching machine. INVENTION CONTENTS
[0005] To solve the problems raised in the above background art, the utility model provides a CPP film stretching machine, which can automatically adjust the tension of the film after stretching CPP film during use, prevent wrinkles in the CPP film during winding, and improve the production quality of the CPP film.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: a CPP film stretching machine, comprising a shell, a rotating shaft one is arranged on the inner wall of the shell, a telescopic shaft one is arranged on the outer side of the rotating shaft one, a roller one is arranged on the other end of the telescopic shaft one, and a connecting rod one is arranged on the front end of the roller one and rotates with the telescopic shaft one, a side plate is arranged on the other end of the connecting rod one, a connecting rod two is arranged on the other end of the side plate, a plug shaft is arranged inside both ends of the side plate and rotates with the connecting rod one and the connecting rod two, a telescopic shaft two is arranged on the other end of the connecting rod two, a rotating shaft two is arranged on the other end of the telescopic shaft two and rotates with the shell, and a roller two is arranged on the rear side of the telescopic shaft two and rotates with the connecting rod two.
[0007] Preferably, a fixed block is fixed on the outer side of the shell, a sliding block is arranged inside the fixed block, a spring is fixed on the top end of the sliding block, and the other end of the spring is fixedly connected with the inner wall of the fixed block.
[0008] Preferably, a lifting screw sleeve is fixedly arranged at the middle position of the side plate, and a long screw rod is spirally arranged inside the lifting screw sleeve and rotates with the shell.
[0009] Preferably, the front side inner wall of the shell is fixedly provided with a motor, and the end of the main shaft of the motor is fixedly provided with a long screw rod.
[0010] Preferably, the front side of the lifting screw sleeve is fixedly provided with a circular plate matched with the shell.
[0011] Preferably, the front side of the circular plate is fixedly provided with a guide block, and the guide block is slidingly arranged in the shell.
[0012] Preferably, a vertical groove is formed in the center of the front side inner wall of the shell, and the guide block is located in the vertical groove of the shell.
[0013] Preferably, the outer side of the sliding block is rotatably provided with a first limiting wheel, the inner wall of the shell is rotatably provided with a second limiting wheel, and the top end of the first limiting wheel is matched with the top end of the second limiting wheel.
[0014] Compared with the prior art, the utility model has the beneficial effects as follows:
[0015] 1、The utility model discloses a roller one cooperation roller two structure design can be tensioned to CPP membrane, thereby reach in the use process can be adjusted automatically to CPP film's tension degree after the film is drawn, prevent CPP film from appearing wrinkle in the process of winding, improved CPP film production quality.
[0016] 2、The utility model discloses a first limiting wheel and second limiting wheel are set up, first CPP film is passed through the bottom of first limiting wheel, and spring occurs elastic deformation and contracts, and the sliding block is slid in the inside of fixed block under the drive of spring, and the bottom of CPP film is matched with the top of second limiting wheel, thereby reach the purpose of limiting CPP film. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is the whole structure schematic diagram of the utility model;
[0018] Figure 2 It is the cross section structure schematic diagram of the shell of the utility model;
[0019] Figure 3 It is the installation structure schematic diagram of the circular plate of the utility model;
[0020] Figure 4 It is the A structure schematic diagram of the utility model Figure 1 .
[0021] In the figure: 1, the shell; 2, rotating shaft one; 3, telescopic shaft one; 4, roller one; 5, connecting rod one; 6, motor; 7, long screw; 8, lifting screw sleeve; 9, round plate; 10, guide block; 11, side plate; 12, inserting shaft; 13, connecting rod two; 14, telescopic shaft two; 15, roller two; 16, rotating shaft two; 17, fixed block; 18, sliding block; 19, spring; 20, first limiting wheel; 21, second limiting wheel. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0023] As Figures 1 to 4 shown, the utility model provides a kind of CPP film stretcher, including shell 1, the inner wall of shell 1 is rotationally equipped with rotating shaft one 2, the outer side of rotating shaft one 2 is rotationally equipped with telescopic shaft one 3, another end of telescopic shaft one 3 is rotationally provided with roller one 4, and the front end of roller one 4 is rotationally provided with connecting rod one 5 with the rotation of telescopic shaft one 3 end, another end of connecting rod one 5 is attached and provided with side plate 11, another end of side plate 11 is attached and provided with connecting rod two 13, the inside of both ends of side plate 11 is rotationally provided with inserting shaft 12, and inserting shaft 12 is rotationally provided with connecting rod one 5 and connecting rod two 13, another end of connecting rod two 13 is rotationally provided with telescopic shaft two 14, another end of telescopic shaft two 14 is rotationally provided with rotating shaft two 16 rotationally provided with shell 1, telescopic shaft one 3 and telescopic shaft two 14 are symmetrically provided, and each is provided with two pairs, is located at the front and back of roller one 4 and roller two 15 respectively, can stably keep the stability of roller structure, the rear side of telescopic shaft two 14 is rotationally provided with roller two 15 that is rotated with connecting rod two 13, is moved up and down by the transmission structure of connecting rod, to be tensioned to CPP film to the roller structure, and the end of telescopic shaft is tensioned by spring traction built-in telescopic shaft one 3 and telescopic shaft two 14.
[0024] Specifically, the outer side of shell 1 is fixedly provided with fixed block 17, the inside of fixed block 17 is slidably provided with sliding block 18, the top end of sliding block 18 is fixedly provided with spring 19, and the other end of spring 19 is fixedly connected with the inner wall of fixed block 17, the outer side of sliding block 18 is rotationally provided with first limiting wheel 20, the inner wall of shell 1 is rotationally provided with second limiting wheel 21, and the top end of first limiting wheel 20 is attached with second limiting wheel 21, CPP film is passed through the bottom end of first limiting wheel 20, spring 19 is elastically deformed to stretch and contract, sliding block 18 is slid in the inside of fixed block 17 driven by spring 19, and the bottom end of CPP film is attached with the top end of second limiting wheel 21.
[0025] The middle position of the side plate 11 is fixedly provided with a lifting screw sleeve 8, a long screw rod 7 rotatingly provided in the lifting screw sleeve 8 is spirally provided in the inside of the lifting screw sleeve 8, a motor 6 is fixedly provided on the front inner wall of the shell 1, and the tail end of the main shaft of the motor 6 is fixedly provided with the long screw rod 7, the motor 6 drives the long screw rod 7 at the tail end of the main shaft to rotate, drives the lifting screw sleeve 8 to lift, a circular plate 9 is fixedly provided on the front side of the lifting screw sleeve 8 and is attached to the shell 1, a guide block 10 is fixedly provided on the front side of the circular plate 9 and is slidingly provided on the shell 1, a vertical slot is formed in the center position of the front inner wall of the shell 1, and the guide block 10 is located in the vertical slot of the shell 1, and the circular plate 9 can be stably moved in the vertical slot through the guide block 10.
[0026] The motor 6 is a prior art and will not be described herein; meanwhile, the utility model also comprises a power supply, a controller, a switch and the like, which are not the main technical points of the patent and will not be described herein; the "front, rear, left and right" visual angle of the device is taken as the reference direction of the schematic view. Figure 1
[0027] Working principle: when the staff uses, first CPP film is worn through the bottom end of first limit wheel 20, spring 19 occurs elastic deformation and stretches and contracts, spring 19 drives sliding block 18 to slide in fixed block 17, the bottom end of CPP film is attached to the top end of second limit wheel 21, CPP film is worn through roller one 4 and roller two 15 in proper order, the motor 6 structure in the shell 1 is started, the output end of motor 6 rotates and drives long screw rod 7 to rotate, thereby controlling the lifting of lifting screw sleeve 8 structure on the outside of long screw rod 7, the guide movement of guide block 10 on the front side of circular plate 9 in the vertical slot of shell 1, and the synchronous rotation of connecting rod one 5 and connecting rod two 13 driven by the insertion shaft 12 in the side plate 11 on the outside of lifting screw sleeve 8, thereby controlling the upward and downward movement of roller one 4 and roller two 15, and controlling the distance between roller one 4 and roller two 15 to be shortened or expanded by the traction of telescopic shaft one 3 and telescopic shaft two 14, so that CPP film can be stretched according to the use requirement in the use process, a large amount of time and effort of the staff is saved, and the production efficiency is improved.
[0028] It should be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0029] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.
Claims
1. A CPP film stretcher comprising a housing (1), characterized in that: The inner wall of the shell (1) is rotatably provided with a rotating shaft (2), the outer side of the rotating shaft (2) is rotatably provided with an extension shaft (3), the other end of the extension shaft (3) is rotatably provided with a roller (4), and the front end of the roller (4) is rotatably provided with a connecting rod (5) rotatably connected with the end of the extension shaft (3), the other end of the connecting rod (5) is abuttingly provided with a side plate (11), the other end of the side plate (11) is abuttingly provided with a connecting rod (13), the inner wall of the side plate (11) is rotatably provided with an insertion shaft (12), and the insertion shaft (12) is rotatably provided with the connecting rod (5) and the connecting rod (13), the other end of the connecting rod (13) is rotatably provided with an extension shaft (14), the other end of the extension shaft (14) is rotatably provided with a rotating shaft (16) rotatably connected with the shell (1), and the rear side of the extension shaft (14) is rotatably provided with a roller (15) rotatably connected with the connecting rod (13).
2. A CPP film stretching machine according to claim 1, characterized in that: The outer side of the shell (1) is fixedly provided with a fixed block (17), the inner wall of the fixed block (17) is slidably provided with a sliding block (18), the top end of the sliding block (18) is fixedly provided with a spring (19), and the other end of the spring (19) is fixedly connected with the inner wall of the fixed block (17).
3. The CPP film stretching machine of claim 1, wherein: The middle position of the side plate (11) is fixedly provided with a lifting screw sleeve (8), and the inner wall of the lifting screw sleeve (8) is spirally provided with a long screw rod (7) rotatably connected with the shell (1).
4. A CPP film stretching machine according to claim 3, characterized in that: The front inner wall of the shell (1) is fixedly provided with a motor (6), and the main shaft end of the motor (6) is fixedly provided with a long screw rod (7).
5. A CPP film stretching machine according to claim 3, characterized in that: The front side of the lifting screw sleeve (8) is fixedly provided with a circular plate (9) abuttingly connected with the shell (1).
6. A CPP film stretching machine according to claim 5, characterized in that: The front side of the circular plate (9) is fixedly provided with a guide block (10) slidably connected with the shell (1).
7. A CPP film stretching machine according to claim 6, characterized in that: The front inner wall of the shell (1) is provided with a vertical groove, and the guide block (10) is located in the vertical groove of the shell (1).
8. A CPP film stretching machine according to claim 2, characterized in that: The outer side of the sliding block (18) is rotatably provided with a first limiting wheel (20), the inner wall of the shell (1) is rotatably provided with a second limiting wheel (21), and the top end of the first limiting wheel (20) is abuttingly connected with the second limiting wheel (21).