A winding pressure roller adjusting mechanism

Abstract

This utility model provides a winding pressure roller adjustment mechanism, relating to the technical field of winding equipment. It includes: an adjustment roller, the main body of which is a cylindrical structure, with a pressure sensor fixedly installed on the outer end face of the middle portion of the adjustment roller; and connecting plates, two sets of which are symmetrically arranged and fixedly installed at the front and rear ends of the adjustment roller. In this utility model, the pressure sensor continuously detects the pressure applied to the film, and then a signal transmitter transmits the data to a controller via an electrical signal. The controller then sends a command to the drive motor, which, upon starting, drives the drive shaft to rotate, allowing the adjustment roller to rotate left and right. This achieves the purpose of dynamically adjusting the film winding pressure, solving the problems of traditional film winding equipment which struggles to dynamically adjust based on changes in film thickness, material, and winding speed, and lacks tension threshold monitoring and alarm functions, failing to provide timely warnings when the film tension exceeds the safe range.

Description

Technical Field

[0001] This utility model relates to the field of winding equipment technology, and in particular to a winding pressure roller adjustment mechanism. Background Technology

[0002] Films are widely used in product packaging. In the industrial fields of film production, packaging, and printing, film winding is one of the key processes. The quality of winding directly affects the flatness, tensile strength, and applicability of the film for subsequent processing. Film tension is the key factor affecting winding quality.

[0003] However, existing film winding pressure adjustment mechanisms still have some shortcomings in use: First, traditional film winding equipment mostly uses mechanical springs or manual adjustment of pressure rollers to control tension, which makes it difficult to dynamically adjust according to changes in film thickness, material and winding speed. For example, when the film winding diameter gradually increases, traditional mechanisms cannot compensate for tension attenuation in real time, leading to problems such as wrinkles, loosening or breakage of the film. Secondly, traditional adjustment mechanisms typically lack tension threshold monitoring and alarm functions. When the membrane tension exceeds the safe range, there is no timely warning, which may lead to overload damage to equipment components or even membrane breakage. Utility Model Content

[0004] This utility model relates to a winding pressure roller adjustment mechanism, which solves the problems of traditional film winding equipment being unable to dynamically adjust according to changes in film thickness, material and winding speed, as well as lacking tension threshold monitoring and alarm functions, and failing to provide timely warnings when film tension exceeds the safe range.

[0005] This utility model provides a winding pressure roller adjustment mechanism, specifically including: a work frame; Two guide rollers are symmetrically installed inside the work frame, and a device box is fixedly installed on the outer end face of the front side plate of the work frame; The adjusting roller has a cylindrical structure, and a pressure sensor is fixedly installed on the outer end face of the middle part of the adjusting roller. The connecting plates are symmetrically arranged in two sets. The connecting plates are fixedly installed at the front and rear ends of the adjusting roller. A rotating shaft is fixedly installed on the outer end face of the rear connecting plate. The rotating shaft is rotatably connected to the rear side plate of the work frame. A connecting shaft is fixedly installed on the outer end face of the front connecting plate. The connecting shaft drives the front side plate of the work frame and is rotatably connected to the device box. The rack is located inside the device box. A side baffle is installed at each of the left and right ends of the rack. The lower end face of the side baffle is rotatably connected to the bottom plate of the device box. The drive motor is fixedly mounted on the outer end face of the device box, and the front end face of the drive motor is connected to the drive shaft. The controller is fixedly installed on the upper surface of the device box and is electrically connected to the drive motor.

[0006] Furthermore, a cavity is provided in the middle of the adjusting roller, and a signal transmitter is fixedly installed inside the cavity. The signal transmitter is electrically connected to the controller.

[0007] Furthermore, an alarm is fixedly installed on the upper surface of the device box, and the alarm is electrically connected to the controller.

[0008] Furthermore, a gear is fixedly mounted on the surface of the connecting shaft, and the gear meshes with the rack.

[0009] Furthermore, a return spring is fixedly installed on the outer end face of the side baffle at the right end of the rack, and the outer end face of the return spring is fixedly connected to the right side plate of the device box.

[0010] Furthermore, a cam is fixedly mounted on the surface of the drive shaft, and the right end face of the cam is in contact with the left side baffle of the rack.

[0011] This utility model provides a winding pressure roller adjustment mechanism, which has the following beneficial effects: 1. The film passes through the top of the guide roller on the left, then passes under the adjusting roller, and passes through the top of the guide roller again, forming a V-shaped path. The two guide rollers are on the same horizontal line, and the adjusting roller is located below the guide roller. The adjusting roller can adjust the tension of the film.

[0012] 2. A pressure sensor is installed on the outer end face of the adjusting roller, which can continuously detect the pressure applied to the film. This pressure value is positively correlated with the film tension. The pressure sensor transmits the detected data to the signal transmitter in the cavity inside the adjusting roller. The signal transmitter transmits the data to the controller on the device box through an electrical signal. The controller compares the received pressure signal with the preset tension threshold, and then sends a command to the drive motor. After the drive motor starts, it drives the drive shaft to rotate, so that the adjusting roller can rotate left and right, thereby achieving the purpose of dynamically adjusting the film winding pressure.

[0013] 3. The eccentric profile of the cam pushes the side baffle on the left side of the rack to move left and right. The rack moves laterally under the push of the cam. At the same time, the rack meshes with the gear on the connecting shaft, which drives the gear to rotate. The gear drives the front connecting plate to rotate through the connecting shaft. The rear connecting plate rotates synchronously around the rotating shaft, causing the adjusting roller to swing up and down around the rear rotating shaft. When the adjusting roller moves downward, it can increase the film tension. When the adjusting roller moves upward, it can reduce the film tension. In addition, a return spring is fixedly installed on the outer end face of the right side baffle. Under the action of the return spring, it can ensure that the cam and the left side baffle are tightly fitted.

[0014] 4. When the membrane tension exceeds the preset safety threshold of the controller, the signal transmitted by the pressure sensor triggers the overload protection program of the controller. The controller sends an electrical signal to the alarm on the device box, and the alarm sounds and lights to remind the operator to deal with the abnormal tension in time. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram: Figure 1 A schematic diagram of the overall device structure of this utility model is shown; Figure 2 A front view schematic diagram of the guide roller and adjusting roller of this utility model is shown; Figure 3 A schematic diagram of the adjusting roller and connecting plate structure of this utility model is shown; Figure 4 This utility model is shown Figure 3 A magnified view of the structure at point A in the middle; Figure 5 A schematic diagram of the connection structure of the rack, gear and return spring of this utility model is shown; Figure 6 A schematic diagram of the internal structure of the device box of this utility model is shown.

[0018] List of reference numerals in the attached diagram: 1. Work frame; 101. Guide roller; 102. Device box; 2. Adjusting roller; 201. Pressure sensor; 202. Cavity; 2021. Signal transmitter; 3. Connecting plate; 301. Connecting shaft; 3011. Gear; 4. Rack; 401. Side baffle; 4011. Return spring; 5. Drive motor; 501. Drive shaft; 5011. Cam; 6. Controller; 601. Alarm. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] Example 1: Please refer to Figures 1 to 6 : This utility model proposes a winding pressure roller adjustment mechanism, including: a working frame 1; Two guide rollers 101 are symmetrically installed inside the work frame 1, and a device box 102 is fixedly installed on the outer end face of the front side plate of the work frame 1. Adjusting roller 2, the main body of adjusting roller 2 is cylindrical, and a pressure sensor 201 is fixedly installed on the outer end face of the middle part of adjusting roller 2; The connecting plate 3 is provided in two symmetrical sets. The connecting plate 3 is fixedly installed at the front and rear ends of the adjusting roller 2. The outer end face of the rear connecting plate 3 is fixedly installed with a rotating shaft, which is rotatably connected to the rear side plate of the working frame 1. The outer end face of the front connecting plate 3 is fixedly installed with a connecting shaft 301, which drives the front side plate of the working frame 1 and is rotatably connected to the device box 102. Rack 4 is located inside device box 102. A side baffle 401 is installed at each of the left and right ends of rack 4. The lower end face of the side baffle 401 is rotatably connected to the bottom plate of device box 102. The drive motor 5 is fixedly installed on the outer end face of the device box 102, and the front end face of the drive motor 5 is connected to the drive shaft 501. The controller 6 is fixedly installed on the upper surface of the device box 102, and is electrically connected to the drive motor 5.

[0021] The adjusting roller 2 has a cavity 202 in the middle, and a signal transmitter 2021 is fixedly installed inside the cavity 202. The signal transmitter 2021 is electrically connected to the controller 6. An alarm 601 is fixedly installed on the upper surface of the device box 102. The alarm 601 is electrically connected to the controller 6. During use, when the film tension exceeds the preset safety threshold of the controller 6, the signal transmitted by the pressure sensor 201 triggers the overload protection program of the controller 6. The controller 6 sends an electrical signal to the alarm 601 on the device box 102, and the alarm 601 emits an audible and visual alarm to prompt the operator to deal with the abnormal tension in time.

[0022] Among them, a gear 3011 is fixedly installed on the surface of the connecting shaft 301. The gear 3011 meshes with the rack 4. The gear 3011 drives the front connecting plate 3 to rotate through the connecting shaft 301. The rear connecting plate 3 rotates synchronously around the rotating shaft, causing the adjusting roller 2 to swing up and down around the rear rotating shaft. When the adjusting roller 2 moves downward, it can increase the film tension. When the adjusting roller 2 moves upward, it can reduce the film tension.

[0023] Among them, a return spring 4011 is fixedly installed on the outer end face of the side baffle 401 at the right end of the rack 4. The outer end face of the return spring 4011 is fixedly connected to the right side plate of the device box 102. During use, under the action of the return spring 4011, the cam 5011 can be tightly fitted with the side baffle 401 on the left side.

[0024] Among them, a cam 5011 is fixedly mounted on the surface of the drive shaft 501. The right end face of the cam 5011 is in contact with the left side baffle 401 of the rack 4. In use, the cam 5011 will drive the rack 4 to move laterally when it rotates.

[0025] The working principle of this embodiment: In this utility model, as shown in the appendix Figure 2As shown, the film passes through the upper end of the guide roller 101 on the left, then passes under the adjusting roller 2, and passes through the upper end of the guide roller 101 again, forming a V-shaped path. The two guide rollers 101 are on the same horizontal line. The adjusting roller 2 is located below the guide roller 101. The adjusting roller 2 can adjust the tension of the film. The pressure sensor 201 on the outer end face of the adjusting roller 2 continuously detects the pressure applied to the film. This pressure value is positively correlated with the film tension. The pressure sensor 201 transmits the detected data to the signal transmitter 2021 in the cavity 202 inside the adjusting roller 2. The signal transmitter 2021 transmits the data to the control unit on the device housing 102 via an electrical signal. The controller 6 compares the received pressure signal with a preset tension threshold. If the pressure value is too low, indicating insufficient tension, the controller 6 sends a forward rotation command to the drive motor 5. If the pressure value is too high, indicating excessive tension, the controller sends a reverse rotation command. Upon receiving the command, the drive motor 5 rotates the drive shaft 501. The cam 5011 fixed on the drive shaft 501 rotates synchronously. The eccentric profile of the cam 5011 pushes the side baffle 401 on the left side of the rack 4 to move left and right. The rack 4 moves laterally under the push of the cam 5011. At the same time, the rack 4 meshes with the gear 3011 on the connecting shaft 301, thereby driving the gear 3011 to move forward. As the gear 3011 rotates, it drives the front connecting plate 3 to rotate via the connecting shaft 301. The rear connecting plate 3 rotates synchronously around the shaft, causing the adjusting roller 2 to swing up and down around the rear shaft. When the adjusting roller 2 moves downward, it increases the film tension; when it moves upward, it decreases the film tension. A return spring 4011 is fixedly installed on the outer end face of the right side baffle 401. Under the action of the return spring 4011, the cam 5011 is ensured to fit tightly against the left side baffle 401. When the film tension exceeds the preset safety threshold of the controller 6, the signal transmitted by the pressure sensor 201 triggers the overload protection function of the controller 6. In the sequence, the controller 6 sends an electrical signal to the alarm 601 on the device box 102. The alarm 601 emits an audible and visual alarm, prompting the operator to deal with the abnormal tension in time. In summary, the pressure value detected by the pressure sensor 201 is transmitted to the controller 6 through the signal transmitter 2021. After analysis, the controller 6 can command the drive motor 5 to start, thereby causing the cam 5011 on the surface of the drive shaft 501 to rotate. The rack 4 can drive the gear 3011 to rotate during the lateral movement, thereby enabling the adjusting roller 2 to move left and right, forming a closed-loop control system to monitor and adjust the film tension in real time, ensuring the tension is stable during the winding process.

Claims

1. A winding pressure roller adjustment mechanism, comprising: a work frame (1), wherein two guide rollers (101) are symmetrically installed inside the work frame (1), and a device box (102) is fixedly installed on the outer end face of the front side plate of the work frame (1); characterized in that, Adjusting roller (2), the main body of the adjusting roller (2) is a cylindrical structure, and a pressure sensor (201) is fixedly installed on the outer end face of the middle part of the adjusting roller (2); connecting plate (3), two sets of connecting plates (3) are symmetrically arranged, the connecting plates (3) are fixedly installed at the front and rear ends of the adjusting roller (2), the outer end face of the rear connecting plate (3) is fixedly installed with a rotating shaft, the rotating shaft is rotatably connected to the rear side plate of the work frame (1), and the outer end face of the front connecting plate (3) is fixedly installed with a connecting shaft (301), the connecting shaft (301) drives the front side plate of the work frame (1) to rotate with the device box (102). Connection; rack (4), the rack (4) is located inside the device box (102), and a side baffle (401) is installed at the left and right ends of the rack (4), and the lower end face of the side baffle (401) is rotatably connected to the bottom plate of the device box (102); drive motor (5), the drive motor (5) is fixedly installed on the outer end face of the device box (102), and the front end face of the drive motor (5) is connected to the drive shaft (501); controller (6), the controller (6) is fixedly installed on the upper end face of the device box (102), and the controller (6) is electrically connected to the drive motor (5).

2. The winding pressure roller adjustment mechanism according to claim 1, characterized in that, A cavity (202) is provided in the middle of the inner part of the adjusting roller (2). A signal transmitter (2021) is fixedly installed inside the cavity (202). The signal transmitter (2021) is electrically connected to the controller (6).

3. The winding pressure roller adjustment mechanism according to claim 1, characterized in that, An alarm (601) is fixedly installed on the upper surface of the device box (102), and the alarm (601) is electrically connected to the controller (6).

4. The winding pressure roller adjustment mechanism according to claim 1, characterized in that, A gear (3011) is fixedly mounted on the surface of the connecting shaft (301), and the gear (3011) meshes with the rack (4).

5. The winding pressure roller adjustment mechanism according to claim 1, characterized in that, A reset spring (4011) is fixedly installed on the outer end face of the side baffle (401) at the right end of the rack (4), and the outer end face of the reset spring (4011) is fixedly connected to the right end side plate of the device box (102).

6. The winding pressure roller adjustment mechanism according to claim 1, characterized in that, A cam (5011) is fixedly mounted on the surface of the drive shaft (501), and the right end face of the cam (5011) is in contact with the left side baffle (401) of the rack (4).

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