Membrane material unwinding mechanism facilitating tensioning adjustment

Abstract

The utility model relates to the technical field of membrane material processing, in particular to a membrane material unwinding mechanism convenient for tensioning adjustment. According to the technical scheme, the device comprises a base, a control box, an adjusting plate and a tensioning adjusting mechanism, four feet are installed at the four corners of the bottom end of the base in a rectangular array mode, an installation base is installed at the left rear end of the upper surface of the base, a circular shaft is rotationally installed in the middle of the upper end of the installation base through a bearing seat, and an auxiliary gear is installed on the section, located in the installation base, of the circular shaft; the adjusting plate is mounted at the upper end of the right side of the mounting base, a rectangular notch is vertically formed in the upper end of the middle of the adjusting plate, two carrier rollers are symmetrically and rotationally mounted at the upper end of the front face of the adjusting plate relative to the rectangular notch, and a carrier roller is also mounted at the lower right corner of the front face of the adjusting plate. A tensioning adjusting mechanism is installed on the back face of the adjusting plate. According to the utility model, the tightness of a membrane material can be easily adjusted during unwinding, manual adjustment is not needed, and the practicability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of membrane material processing technology, specifically to a membrane material unwinding mechanism that facilitates tension adjustment. Background Technology

[0002] Films are increasingly widely used in our production and daily life. Films are generally made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins. They are used for packaging and as a coating layer. Plastic packaging and plastic packaging products have an increasing market share and are widely used in food, medicine, chemical and other fields. In the production and processing of films, it is necessary to quickly unwind the rolled film so that the unwound film can be efficiently coated, laminated and dried during the transportation process.

[0003] The function of the membrane material unwinding and tensioning mechanism is to ensure that the membrane material maintains a uniform tension during transmission, and to avoid the membrane material being too tight or too loose. The tensioning mechanism in the traditional membrane material unwinding mechanism consists of multiple idlers, which requires manual adjustment with tools, making the operation cumbersome and reducing the practicality of the device. Utility Model Content

[0004] The purpose of this invention is to provide a membrane material unwinding mechanism that facilitates tension adjustment. It allows for easy adjustment of the membrane material tension during unwinding without the need for manual adjustment, thus improving the practicality of the device and solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a film material unwinding mechanism that facilitates tension adjustment, comprising a base, a control box, an adjusting plate, and a tension adjustment mechanism. A mounting seat is installed on the left rear end of the upper surface of the base. A round shaft is rotatably mounted on the upper middle of the mounting seat via a bearing seat. A secondary gear is installed on a section of the round shaft inside the mounting seat. A limit block is installed on the rear end of the round shaft outside the mounting seat, and a threaded sleeve is spirally connected to the front end. The adjusting plate is installed on the upper right side of the mounting seat. A rectangular slot is vertically opened in the upper middle of the adjusting plate. Two rollers are symmetrically mounted on the upper front of the adjusting plate about the rectangular slot. A roller is also installed on the lower right corner of the front of the adjusting plate. A tension adjustment mechanism is installed on the back of the adjusting plate.

[0006] Preferably, the base has four feet arranged in a rectangular array at its bottom corners. These four feet provide stable support for the base.

[0007] Preferably, an unwinding motor is mounted on the back of the mounting base, and a main gear is mounted on the output shaft of the unwinding motor. The main gear is meshed with a secondary gear. By setting up the unwinding motor, the circular shaft is driven to rotate for unwinding.

[0008] Preferably, the tension adjustment mechanism comprises a fixed plate, lifting electric rods, round rods, a movable seat, a mounting block, a smooth rod, a mounting plate, and a tension roller. The fixed plate is installed at the upper middle position of the back of the adjustment plate. Two lifting electric rods are symmetrically installed on the top of the fixed plate, and two round rods are symmetrically installed on the bottom. Movable seats are slidably installed on the two round rods. The extended ends of the two lifting electric rods are fixed on the movable seats. A mounting block is installed at the front end of the movable seat. Two smooth rods are symmetrically slidably installed on the mounting block through a rectangular slot. A mounting plate is installed at the bottom of the two smooth rods, and a tension roller is installed at the bottom of the mounting plate. By setting up the tension adjustment mechanism, the tension of the film material can be easily adjusted during unwinding.

[0009] Preferably, springs are fitted onto both optical rods. By incorporating springs, the tensioning roller becomes elastic, thus preventing damage to the membrane from excessive tensioning roller adjustment.

[0010] Preferably, the control box is installed at the upper left end of the mounting base, and is electrically connected to the unwinding motor and the two lifting electric rods. By providing the control box, the overall control of the unwinding operation can be easily achieved.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention, by setting up a tension adjustment mechanism, allows for easy adjustment of the film material tension during unwinding. Two lifting electric rods can be activated via the control box, causing a movable seat to move up and down along the two round rods. This up-and-down movement of the movable seat, in turn, causes the tension roller to move up and down, thus tensioning the film material. This eliminates the need for manual adjustment and improves the practicality of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a partial side view of the present invention;

[0015] Figure 3 This is a rear view of the present invention.

[0016] In the diagram: 1. Base; 2. Mounting seat; 3. Foot; 4. Round shaft; 5. Threaded sleeve; 6. Control box; 7. Adjusting plate; 8. Lifting electric rod; 9. Idler roller; 10. Rectangular slot; 11. Moving seat; 12. Mounting block; 13. Smooth rod; 14. Spring; 15. Mounting plate; 16. Tensioning roller; 17. Secondary gear; 18. Limiting block; 19. Unwinding motor; 20. Main gear; 21. Fixing plate; 22. Round rod. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1 to 3 This utility model provides a technical solution for a membrane material unwinding mechanism that facilitates tension adjustment: A membrane material unwinding mechanism that facilitates tension adjustment includes a base 1, a control box 6, an adjustment plate 7, and a tension adjustment mechanism. Four feet 3 are mounted in a rectangular array at the four corners of the base 1's bottom end. A mounting seat 2 is mounted on the left rear end of the upper surface of the base 1. A round shaft 4 is rotatably mounted on the middle of the upper end of the mounting seat 2 via a bearing seat. A secondary gear 17 is mounted on a section of the round shaft 4 inside the mounting seat 2. A limit block 18 is mounted on the rear end of the round shaft 4 outside the mounting seat 2, and a threaded sleeve 5 is spirally connected to the front end. An unwinding motor 19 is mounted on the back of the mounting seat 2. A main gear 20 is mounted on the output shaft of the unwinding motor 19, and the main gear 20 meshes with the secondary gear 17. In use, first, the membrane roll is inserted into the round shaft 4, and the threaded sleeve 5 is tightened to fix the membrane roll. Then, the membrane is sequentially unwound from three rollers 9 (e.g., ...). Figure 1 Bypassing the control box 6, start the unwinding motor 19. The unwinding motor 19 drives the main gear 20 to rotate, the main gear 20 drives the auxiliary gear 17 to rotate, and the auxiliary gear 17 drives the round shaft 4 to rotate, thereby driving the film roll to rotate for unwinding.

[0019] The adjusting plate 7 is installed on the upper right side of the mounting base 2. A rectangular slot 10 is vertically opened in the upper middle part of the adjusting plate 7. Two rollers 9 are symmetrically mounted on the upper front of the adjusting plate 7 about the rectangular slot 10. A roller 9 is also installed on the lower right corner of the front of the adjusting plate 7. A tensioning adjustment mechanism is installed on the back of the adjusting plate 7. The tensioning adjustment mechanism consists of a fixed plate 21, a lifting electric rod 8, a round rod 22, a movable base 11, a mounting block 12, a smooth rod 13, a mounting plate 15, and a tensioning roller 16. The fixed plate 21 is installed in the middle of the upper back of the adjusting plate 7. Two lifting electric rods 8 are symmetrically mounted on the top of the fixed plate 21, and two round rods 22 are symmetrically mounted on the bottom. A movable base 11 is slidably mounted on the mounting base 2. Two lifting electric rods 8 have their extended ends fixed to the movable base 11. An mounting block 12 is mounted at the front end of the movable base 11. Two smooth rods 13 are symmetrically slidably mounted on the mounting block 12 through a rectangular slot 10. Springs 14 are fitted onto each of the two smooth rods 13. A mounting plate 15 is mounted at the bottom of the two smooth rods 13, and a tension roller 16 is mounted at the bottom of the mounting plate 15. During unwinding, the two lifting electric rods 8 can be activated via the control box 6. The operation of the two lifting electric rods 8 drives the movable base 11 to move up and down along the two round rods 22. The up-and-down movement of the movable base 11 drives the tension roller 16 to move up and down, tensioning the film material. Adjustment is convenient. The control box 6 is installed at the upper left side of the mounting base 2 and is electrically connected to the unwinding motor 19 and the two lifting electric rods 8.

[0020] All motors in this utility model are designed using the small servo motor model 14HS2408. This model of motor is only for reference by those skilled in the art. Those skilled in the art can select motors with the same parameters and functions for installation and debugging according to actual production needs. This utility model will not elaborate further.

[0021] In use, this invention first inserts the film roll into the round shaft 4, tightens the threaded sleeve 5 to fix the film roll, and then the film is sequentially fed from the three support rollers 9 (e.g., ...). Figure 1 Bypassing the control box 6, the unwinding motor 19 is started. The unwinding motor 19 drives the main gear 20 to rotate, which in turn drives the auxiliary gear 17 to rotate. The auxiliary gear 17 then drives the round shaft 4 to rotate, thereby driving the film roll to rotate for unwinding. During the unwinding process, the two lifting electric rods 8 can be started through the control box 6. The two lifting electric rods 8 drive the moving seat 11 to move up and down along the two round rods 22. The up and down movement of the moving seat 11 drives the tensioning roller 16 to move up and down to tension the film material. Adjustment is convenient.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A membrane material unwinding mechanism for easy tension adjustment, comprising a base (1), a control box (6), an adjusting plate (7), and a tension adjustment mechanism, characterized in that: The base (1) has a mounting seat (2) installed on the left rear end of its upper surface. A round shaft (4) is rotatably mounted on the upper middle of the mounting seat (2) through a bearing seat. A secondary gear (17) is installed on a section of the round shaft (4) inside the mounting seat (2). A limit block (18) is installed on the rear end of the round shaft (4) outside the mounting seat (2), and a threaded sleeve (5) is spirally connected to the front end. The adjusting plate (7) is installed on the upper right side of the mounting seat (2). A rectangular slot (10) is vertically opened on the upper middle part of the adjusting plate (7). Two rollers (9) are symmetrically mounted on the upper front of the adjusting plate (7) about the rectangular slot (10). A roller (9) is also installed on the lower right corner of the front of the adjusting plate (7). A tensioning adjustment mechanism is installed on the back of the adjusting plate (7).

2. The membrane material unwinding mechanism for easy tension adjustment according to claim 1, characterized in that: The base (1) has four feet (3) arranged in a rectangular array at its four corners.

3. The membrane material unwinding mechanism for easy tension adjustment according to claim 1, characterized in that: The mounting base (2) is equipped with an unwinding motor (19) on its back. The output shaft of the unwinding motor (19) is equipped with a main gear (20), which meshes with the auxiliary gear (17).

4. The membrane material unwinding mechanism for easy tension adjustment according to claim 1, characterized in that: The tension adjustment mechanism consists of a fixed plate (21), lifting electric rods (8), round rods (22), a movable seat (11), a mounting block (12), a smooth rod (13), a mounting plate (15), and a tension roller (16). The fixed plate (21) is installed at the middle of the upper back of the adjustment plate (7). Two lifting electric rods (8) are symmetrically installed on the top of the fixed plate (21), and two round rods (22) are symmetrically installed on the bottom. The movable seat (11) is slidably installed on the two round rods (22). The extended ends of the two lifting electric rods (8) are fixed on the movable seat (11). The mounting block (12) is installed at the front end of the movable seat (11). Two smooth rods (13) are symmetrically slidably installed on the mounting block (12) through the rectangular slot (10). The mounting plate (15) is installed at the bottom of the two smooth rods (13), and the tension roller (16) is installed at the bottom of the mounting plate (15).

5. The membrane material unwinding mechanism for easy tension adjustment according to claim 4, characterized in that: Springs (14) are fitted onto both of the aforementioned light rods (13).

6. The membrane material unwinding mechanism for easy tension adjustment according to claim 1, characterized in that: The control box (6) is installed on the upper left side of the mounting base (2), and the control box (6) is electrically connected to the unwinding motor (19) and the two lifting electric rods (8).

Images