Unwinding device

Abstract

The utility model belongs to the technical field of printing, and particularly relates to an unwinding device which comprises a machine body, an unwinding shaft and an unwinding motor, the unwinding shaft is rotationally arranged on the surface of one side of the machine body, the unwinding motor is installed on the surface of the other side of the machine body, and the power output end of the unwinding motor is in transmission connection with the unwinding shaft. A mounting frame is welded to the surface of one side of the machine body and located on one side of the unwinding shaft, a driving roller is rotationally arranged on the mounting frame, a pressing roller is rotationally arranged above the driving roller, the two ends of the pressing roller are rotationally connected with lifting bases, and connecting rods are connected to the tops of the lifting bases. Printing coiled materials are extruded through the pressing roller and the driving roller, meanwhile, the printing coiled materials are heated through the heating ring, the printing coiled materials can be ironed, the flatness of the surfaces of the printing coiled materials is guaranteed, the two ends of the pressing roller are connected with the ends of the connecting frames through the lifting bases and the connecting rods, and the two ends of the pressing roller can move synchronously during adjustment, so that the printing coiled materials can be ironed conveniently. And the adjustment accuracy of the compression roller can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of printing, and specifically relates to an unwinding device. Background Technique

[0002] During the printing process, common printing substrates include paper, textiles, plastics, leather, PC, etc. Before use, the printing substrates are usually wound around the outside of a paper tube for easy storage and transportation. When in use, the printing substrates need to be unwound, and the paper tube needs to be installed in the unwinding system; through patent retrieval, it is found that the publication number: CN114852738A discloses a printing substrate unwinding system for printing, which has different paper tubes sleeved on different positioning sleeves respectively. The positioning sleeves are all rotatably connected with the positioning rollers, so that different paper tubes can rotate and unwind at different speeds on the same group of positioning rollers, and different printing substrates can be unwound simultaneously, improving the unwinding efficiency.

[0003] When the existing unwinding device is in use, when there are wrinkles on the surface of the printed coil material, the wrinkles cannot be quickly smoothed out, resulting in the wrinkles affecting the printing quality of the printed coil material during the subsequent printing process. At the same time, when adjusting, the two ends of the pressure roller are adjusted respectively, which will cause the levelness of the pressure roller to change during adjustment, affecting the fit degree between the pressure roller and the printed coil material. To solve the above problems, an unwinding device is proposed in this application. Summary of the Utility Model

[0004] (1) Purpose of the Utility Model

[0005] To solve the technical problems in the background technique, the utility model proposes an unwinding device. The printed coil material is extruded by the pressure roller and the driving roller, and at the same time, the heating ring heats the printed coil material, which can iron the printed coil material to ensure the flatness of the surface of the printed coil material. The two ends of the pressure roller are connected to the end of the connecting frame through the lifting seat and the connecting rod. During adjustment, the two ends of the pressure roller can move synchronously, improving the accuracy of the pressure roller adjustment, and solving the problems proposed in the background technique.

[0006] (2) Technical Solution

[0007] To solve the above technical problems, the utility model provides an unwinding device, which includes a machine body, an unwinding shaft and an unwinding motor. The unwinding shaft is rotatably arranged on one side surface of the machine body, the unwinding motor is installed on the other side surface of the machine body, and the power output end of the unwinding motor is in transmission connection with the unwinding shaft. An installation frame is welded on one side surface of the machine body. The installation frame is located on one side of the unwinding shaft. A driving roller is rotatably arranged on the installation frame, and a pressure roller is rotatably arranged above the driving roller;

[0008] Both ends of the pressure roller are rotatably connected to the lifting seats. Connecting rods are connected to the tops of the lifting seats. A connecting frame is connected to the tops of the connecting rods. An adjusting screw rod is threadedly penetrated through the middle of the connecting frame.

[0009] A heating ring is arranged inside the pressure roller.

[0010] Preferably, a driving motor is installed at the bottom of the inner cavity of the mounting frame. The power output end of the driving motor is drivingly connected to a driving wheel.

[0011] Preferably, a synchronous wheel is drivingly connected to the end of the driving roller. The synchronous wheel and the driving wheel are driven by a belt.

[0012] Preferably, lifting grooves are symmetrically formed at the top of the mounting frame. The lifting seats are slidably connected to the lifting grooves.

[0013] Preferably, bearing seats are rotatably arranged on one side surface of the machine body. The bearing seats are symmetrically distributed. The two groups of bearing seats are located between the unwinding shaft and the pressure roller.

[0014] Preferably, a first guide roller is rotatably connected to the surface of one group of the bearing seats, and a second guide roller is rotatably connected to the surface of the other group of the bearing seats.

[0015] Preferably, a triangular pushing plate is arranged in the middle of the first guide roller and the second guide roller. The triangular pushing plate is fixed on the surface of the machine body through a bracket. A support spring is connected to the bottom of the connecting rod. The bottom of the support spring is connected to the top of the lifting seat.

[0016] The above technical solutions of the present utility model have the following beneficial technical effects:

[0017] 1. In the present utility model, the printed coil is extruded by the pressure roller and the driving roller, and at the same time, the heating ring heats the printed coil, which can play an ironing role on the printed coil to ensure the flatness of the surface of the printed coil. Both ends of the pressure roller are connected to the end of the connecting frame through the lifting seat and the connecting rod, and the two ends of the pressure roller can be moved synchronously during adjustment, which can improve the accuracy of the adjustment of the pressure roller.

[0018] 2. In the present utility model, the triangular pushing plate can push impurities off the surface of the printed coil. When there are still impurities remaining, when the pressure roller presses on the impurities, the impurities will push up the top of the pressure roller and compress the support spring, which can avoid excessive pressure of the pressure roller on the impurities causing damage to the printed coil and improve the printing quality of the printed coil. Description of the Drawings

[0019] Figure 1 It is a schematic diagram of the overall structure of a coil unwinding device of the present utility model;

[0020] Figure 2Schematic diagram of the driving roll driving structure of a unwind device of the present utility model;

[0021] Figure 3 Schematic diagram of the pressing roll lifting and adjusting structure of a unwind device of the present utility model;

[0022] Figure 4 Schematic diagram of the triangular push plate structure of a unwind device of the present utility model;

[0023] Figure 5 Schematic diagram of the cross-sectional structure of the pressing roll of a unwind device of the present utility model.

[0024] Reference numerals:

[0025] 1, body; 2, unwind shaft; 3, unwind motor; 4, mounting bracket; 5, driving roll; 6, driving motor; 7, driving wheel; 8, synchronous wheel; 9, lifting groove; 10, lifting seat; 11, connecting rod; 12, connecting frame; 13, adjusting screw rod; 14, pressing roll; 15, heating ring; 16, triangular push plate; 17, first guide roll; 18, second guide roll; 19, support spring. Detailed implementation manners

[0026] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.

[0027] As Figures 1-5 shown, a unwind device proposed by the present utility model includes a body 1, a unwind shaft 2 and a unwind motor 3. The unwind shaft 2 is rotatably arranged on one side surface of the body 1, the unwind motor 3 is installed on the other side surface of the body 1, and the power output end of the unwind motor 3 is in transmission connection with the unwind shaft 2. A mounting bracket 4 is welded on one side surface of the body 1. The mounting bracket 4 is located on one side of the unwind shaft 2. A driving roll 5 is rotatably arranged on the mounting bracket 4. A pressing roll 14 is rotatably arranged above the driving roll 5;

[0028] Both ends of the pressing roll 14 are rotatably connected to the lifting seats 10. Connecting rods 11 are connected to the tops of the lifting seats 10. A connecting frame 12 is connected to the tops of the connecting rods 11. An adjusting screw rod 13 is threadedly penetrated through the middle of the connecting frame 12;

[0029] A heating ring 15 is arranged in the inner cavity of the pressing roll 14.

[0030] It should be noted that the printed coil passes between the pressure roller 14 and the driving roller 5, passes between the No. 1 guide roller 17 and the No. 2 guide roller 18 and the triangular push plate 16, and is connected to the coil rack. The coil rack is plugged into the unwinding shaft 2 and fixed by a locking nut. The unwinding motor 3 drives the unwinding shaft 2, and the printed coil can be unwound through the coil rack. During the unwinding process, the adjusting screw rod 13 is rotated. The adjusting screw rod 13 applies a downward thrust to the lifting seat 10 through the connecting frame 12 and the connecting rod 11 under the action of the surface thread. The lifting slot 9 and the lifting seat 10 can be matched to guide the lifting and lowering adjustment of the pressure roller 14. The pressing roller 14 is pressed on the surface of the printed coil, the driving motor 6 drives the synchronous wheel 8 through the driving wheel 7 and the belt, the synchronous wheel 8 can drive the driving roller 5 to rotate, the driving roller 5 can convey the printed coil, the printed coil is squeezed by the pressing roller 14 and the driving roller 5, and the heating ring 15 heats the printed coil, which can iron the printed coil to ensure the flatness of the surface of the printed coil. The two ends of the pressing roller 14 are connected to the end of the connecting frame 12 through the lifting seat 10 and the connecting rod 11. When adjusting, the two ends of the pressing roller 14 can be moved synchronously, which can improve the accuracy of the adjustment of the pressing roller 14.

[0031] In this embodiment, if Figure 2 and Figure 3 As shown, a driving motor 6 is installed at the bottom of the inner cavity of the mounting frame 4, and the power output end of the driving motor 6 is transmission-connected to a driving wheel 7, and the end of the driving roller 5 is transmission-connected to a synchronous wheel 8, and the synchronous wheel 8 and the driving wheel 7 are driven by a belt.

[0032] It should be noted that the driving motor 6 drives the synchronous wheel 8 through the driving wheel 7 and the belt, the synchronous wheel 8 can drive the driving roller 5 to rotate, and the driving roller 5 can play a role in conveying the printed coil.

[0033] In this embodiment, if Figure 2 and Figure 3 As shown, a lifting slot 9 is symmetrically opened on the top of the mounting frame 4, and the lifting seat 10 is slidably connected to the lifting slot 9.

[0034] It should be noted that the lifting seat 10 is slidably connected to the lifting slot 9 and can guide the lifting and lowering of the pressure roller 14.

[0035] In this embodiment, if Figure 3 and Figure 4As shown in the figure, a bearing seat is rotatably provided on one side surface of the machine body 1. The bearing seats are symmetrically distributed. The two groups of bearing seats are located between the unwinding shaft 2 and the pressure roller 14. A first guide roller 17 is rotatably connected to the surface of one group of bearing seats, and a second guide roller 18 is rotatably connected to the surface of the other group of bearing seats. A triangular push plate 16 is provided in the middle of the first guide roller 17 and the second guide roller 18. The triangular push plate 16 is fixed to the surface of the machine body 1 through a bracket. The bottom of the connecting rod 11 is connected with a support spring 19, and the bottom of the support spring 19 is connected with the top of the lifting seat 10.

[0036] It should be noted that when there are impurities on the surface of the printed coil material, the pressure roller 14 presses on the impurities, and the impurities will push up the top of the pressure roller 14 and compress the support spring 19, which can avoid damage to the printed coil material caused by excessive pressure of the pressure roller 14 on the impurities. After the impurities pass through the pressure roller 14, the triangular push plate 16 can push the impurities off the surface of the printed coil material, which can improve the unwinding quality of the printed coil material.

[0037] The working principle and usage process of the present utility model: When the printed coil material passes between the pressure roller 14 and the driving roller 5, and then passes between the first guide roller 17, the second guide roller 18 and the triangular push plate 16, it is connected to the coil material rack. The coil material rack is inserted on the unwinding shaft 2 and fixed by a locking nut. The unwinding motor 3 drives the unwinding shaft 2, and the printed coil material can be unwound through the coil material rack. During the unwinding process, by rotating the adjusting screw rod 13, under the action of the thread on the surface, the adjusting screw rod 13 exerts a downward thrust on the lifting seat 10 through the connecting frame 12 and the connecting rod 11. The lifting groove 9 and the lifting seat 10 cooperate to play a guiding role in the lifting adjustment of the pressure roller 14. The pressure roller 14 presses on the surface of the printed coil material. The driving motor 6 drives the synchronous wheel 8 through the driving wheel 7 and the belt. The synchronous wheel 8 can drive the driving roller 5 to rotate. The driving roller 5 can convey the printed coil material. The printed coil material is extruded by the pressure roller 14 and the driving roller 5, and at the same time, the heating ring 15 heats the printed coil material, which can iron the printed coil material to ensure the flatness of the surface of the printed coil material. The two ends of the pressure roller 14 are connected to the end of the connecting frame 12 through the lifting seat 10 and the connecting rod 11. During adjustment, the two ends of the pressure roller 14 can move synchronously, which can improve the accuracy of the adjustment of the pressure roller 14. When there are impurities on the surface of the printed coil material, the triangular push plate 16 can push the impurities off the surface of the printed coil material. When there are still impurities remaining, the pressure roller 14 presses on the impurities, and the impurities will push up the top of the pressure roller 14 and compress the support spring 19, which can avoid damage to the printed coil material caused by excessive pressure of the pressure roller 14 on the impurities, and can improve the printing quality of the printed coil material.

[0038] It should be understood that the above specific embodiments of the present utility model are only for illustrative explanation or interpretation of the principles of the present utility model, and do not constitute a limitation on the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present utility model shall be included within the protection scope of the present utility model. In addition, the appended claims of the present utility model are intended to cover all variations and modifications that fall within the scope and boundaries of the appended claims or equivalent forms of such scope and boundaries.

Claims

1. A reeling device, comprising a body (1), a reeling shaft (2) and a reeling motor (3), wherein the reeling shaft (2) is rotatably arranged on one side surface of the body (1), the reeling motor (3) is installed on the other side surface of the body (1), and the power output end of the reeling motor (3) is transmission-connected to the reeling shaft (2), characterized in that: On one side surface of the body (1), a mounting frame (4) is welded. The mounting frame (4) is located on one side of the unwinding shaft (2). A driving roller (5) is rotatably provided on the mounting frame (4). Above the driving roller (5), a pressure roller (14) is rotatably provided. Both ends of the pressure roller (14) are rotatably connected to a lifting seat (10). Connecting rods (11) are provided at the tops of the lifting seats (10). A connecting frame (12) is connected to the tops of the connecting rods (11). An adjusting screw rod (13) is threadedly penetrated through the middle of the connecting frame (12). A heating ring (15) is provided inside the pressure roller (14).

2. The unwind device according to claim 1, characterized in that, At the bottom inside the mounting frame (4), a driving motor (6) is installed. The power output end of the driving motor (6) is drivingly connected to a driving wheel (7).

3. The unwinding device according to claim 2, characterized in that, One end of the driving roller (5) is drivingly connected to a synchronous wheel (8). The synchronous wheel (8) and the driving wheel (7) are connected by a belt drive.

4. The unwinding device according to claim 3, characterized in that, Lifting grooves (9) are symmetrically formed at the top of the mounting frame (4). The lifting seats (10) are slidably connected to the lifting grooves (9).

5. The unwind device according to claim 1, characterized in that, On one side surface of the body (1), bearing seats are rotatably provided. The bearing seats are symmetrically distributed. The two groups of bearing seats are located between the unwinding shaft (2) and the pressure roller (14).

6. The unwinding device according to claim 5, characterized in that, A first guide roller (17) is rotatably connected to the surface of one group of the bearing seats, and a second guide roller (18) is rotatably connected to the surface of the other group of the bearing seats.

7. The unwinding device according to claim 6, characterized in that, A triangular push plate (16) is provided in the middle of the first guide roller (17) and the second guide roller (18). The triangular push plate (16) is fixed to the surface of the body (1) through a bracket. A support spring (19) is connected to the bottom of the connecting rod (11). The bottom of the support spring (19) is connected to the top of the lifting seat (10).

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