Pressure adjusting structure of plastic film pressing machine

Abstract

The utility model relates to the technical field of pressure adjusting structures, and discloses a pressure adjusting structure of a plastic film laminator, which comprises a mounting frame, a motor is mounted at the bottom of the mounting frame, a first turntable is mounted at the rotor output end of the motor, a second turntable is arranged on the rear side of the first turntable, and the second turntable is mounted on the mounting frame. A belt is connected between the first rotating disc and the second rotating disc in a sleeving manner; the guide rod is arranged below the first rotating disc and the second rotating disc, and the surface of the guide rod is rotationally connected with an adjusting rod; the additionally-arranged motor can drive the first rotating disc to rotate, so that the second rotating disc can be driven to rotate synchronously through the belt, then the adjusting rod can be driven to ascend and descend synchronously, the distance between the eccentric cam and the film pressing roller can be adjusted, and the eccentric cam can make close contact with the film pressing roller; therefore, the problem that gaps appear in a positioning working area due to abrasion of the surface of the eccentric cam can be solved, and the pressure of the plastic film pressing machine can be accurately adjusted.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulation structure technology, specifically a pressure regulation structure for a plastic film pressing machine. Background Technology

[0002] The pressure adjustment structure of a plastic film pressing machine includes mechanical adjustment, hydraulic and pneumatic adjustment, and electrical control adjustment. Pressure adjustment is achieved by changing the relative position of the film pressing roller and related components or by using various power sources and control methods.

[0003] The pressure adjustment method of common plastic film pressing machines is generally to use an eccentric cam mechanism. By rotating the eccentric cam, the distance between the film pressing roller and the hot pressing roller is changed, thereby adjusting the pressure.

[0004] However, since the eccentric wheel is installed on the eccentric shaft with a clearance fit, the surface of the offset cam will inevitably wear after long-term use. The wear on the surface of the eccentric cam will cause a gap in the positioning working area, resulting in the inability to accurately adjust the pressure of the plastic film pressing machine. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a pressure adjustment structure for a plastic film press, which solves the problem mentioned in the background art that the surface of the offset cam will inevitably wear after long-term use, and the wear of the eccentric cam surface will cause a gap in the positioning working area, resulting in the inability to accurately adjust the pressure of the plastic film press.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure regulating structure for a plastic film pressing machine, comprising:

[0007] The mounting frame has a motor mounted at its bottom, a first turntable mounted at the rotor output end of the motor, a second turntable located behind the first turntable, and a belt connecting the first turntable and the second turntable.

[0008] Guide rods are located below the first and second turntables, and each guide rod has an adjusting rod screwed onto its surface;

[0009] The mounting frame is located below the mounting bracket. Connecting plates are installed on both the front and back of the mounting frame, and the bottom ends of the adjusting rods are connected to the surfaces of the connecting plates.

[0010] A motor is mounted on the inner wall of the mounting frame. An eccentric shaft is mounted on the rotor output end of the motor, and eccentric cams are evenly distributed on the surface of the eccentric shaft.

[0011] Preferably, sliders are installed on both sides of the installation frame, and slide rails are welded to both sides of the bottom of the installation bracket. The sliders are inserted into the interior of the slide rails, which can limit the installation frame and can also cooperate with the adjusting rod to stably install the installation frame.

[0012] Preferably, the second turntable is connected to the bottom of the installation bracket through a bearing, and the connecting end of the eccentric shaft is also installed on the inner wall of the installation frame through a bearing, enabling the second turntable and the eccentric shaft to rotate stably.

[0013] Preferably, the installation bracket is designed in a "day" shape, which can reduce the gravity of the installation bracket and facilitate the installation of the installation bracket. The connecting plate is designed in a "roof" shape, which can increase the distance between the connecting plate and the installation frame and provide space for the eccentric cam to rotate. Limit blocks are installed on both sides of the adjusting rod, and limit rails are welded to the corresponding positions at the bottom of the installation bracket. The limit blocks are inserted into the interior of the limit rails, enabling the adjusting rod to stably adjust the distance between the eccentric cam and the film pressing roller.

[0014] Preferably, support rods are installed at the four corners of the bottom of the installation bracket, and mounting seats are installed at the bottoms of the support rods. The parts where the support rods are installed are far from the installation frame, thus not affecting the normal installation of the film pressing roller.

[0015] Preferably, bolts are screwed on the upper surfaces of the mounting seats, and the lower parts of the bolts are screwed on the surface of the plastic film pressing machine. The mounting seats can be fixed through the bolts, thereby improving the stability of the device. Beneficial effects

[0016] Compared with the prior art, the present utility model provides a pressure adjustment structure for a plastic film pressing machine, having the following beneficial effects:

[0017] For the pressure adjustment structure of the plastic film pressing machine, the added motor can drive the eccentric shaft to rotate, and the eccentric shaft can drive the eccentric cam to rotate. Adjusting the eccentric cam to an appropriate position can adjust the extrusion pressure of the film pressing roller. At the same time, the added motor can drive the first turntable to rotate, and can thereby drive the second turntable to rotate synchronously through the belt, and further drive the adjusting rod to lift and lower synchronously, and can adjust the distance between the eccentric cam and the film pressing roller, enabling the eccentric cam to closely contact the film pressing roller, thus being able to compensate for the problem of gaps appearing in the positioning working area due to wear on the surface of the eccentric cam, and accurately adjusting the pressure of the plastic film pressing machine. Description of the drawings

[0018] Figure 1 It is a schematic structural diagram of the present utility model;

[0019] Figure 2 It is a schematic installation structure diagram of the adjusting rod of the present utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the eccentric cam of this utility model.

[0021] In the diagram: 1. Mounting bracket; 2. Motor; 3. First turntable; 31. Belt; 4. Second turntable; 5. Guide rod; 6. Adjusting rod; 7. Mounting frame; 8. Connecting plate; 9. Motor; 10. Eccentric shaft; 11. Eccentric cam; 12. Slider; 13. Slide rail; 14. Limit block; 15. Limiting track; 16. Support rod; 17. Mounting base; 18. Bolt. Detailed Implementation

[0022] 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.

[0023] This utility model provides a technical solution: a pressure regulating structure for a plastic film pressing machine. (See attached image.) Figure 1 This includes mounting bracket 1, with motor 2 mounted at the bottom of mounting bracket 1. Please refer to [link / reference]. Figure 2 The rotor output end of motor 2 is equipped with a first turntable 3, and a second turntable 4 is provided on the rear side of the first turntable 3. A belt 31 is sleeved between the first turntable 3 and the second turntable 4.

[0024] Guide rod 5 is located below the first turntable 3 and the second turntable 4, and an adjusting rod 6 is screwed onto the surface of each guide rod 5;

[0025] The starter motor 2 can drive the first turntable 3 to rotate, which in turn can drive the second turntable 4 to rotate synchronously via the belt 31, and thus drive the adjusting rod 6 to rise and fall synchronously.

[0026] Please see Figure 1 Mounting frame 7 is located below mounting bracket 1. Please refer to [link / reference]. Figure 3 The front and back of the mounting frame 7 are both equipped with connecting plates 8, and the bottom of the adjusting rod 6 is connected to the surface of the connecting plate 8.

[0027] Motor 9 is located on the inner wall of mounting frame 7. An eccentric shaft 10 is installed at the rotor output end of motor 9. Eccentric cams 11 are evenly distributed on the surface of eccentric shaft 10.

[0028] Slider 12 is installed on both sides of the mounting frame 7. Please refer to [link / reference]. Figure 1, Slide rails 13 are welded to both sides of the bottom of the mounting frame 1. The slider 12 is inserted into the interior of the slide rail 13, which can limit the mounting frame 7 and can also cooperate with the adjusting rod 6 to stably mount the mounting frame 7;

[0029] Starting the motor 9 can drive the eccentric shaft 10 to rotate. Through the eccentric shaft 10, the eccentric cam 11 can be driven to rotate. Adjusting the eccentric cam 11 to an appropriate position can adjust the extrusion pressure of the film pressing roller.

[0030] Please refer to Figure 2 , The second turntable 4 is connected to the bottom of the mounting frame 1 through a bearing. The connecting end of the eccentric shaft 10 is also installed on the inner wall of the mounting frame 7 through a bearing, so that the second turntable 4 and the eccentric shaft 10 can rotate stably.

[0031] Please refer to Figure 1 , The mounting frame 1 is designed in a shape like the Chinese character 'ri', which can reduce the gravity of the mounting frame 1, thus facilitating the installation of the mounting frame 1. The connecting plate 8 is designed in a shape like the Chinese character'mi', which can increase the distance between the connecting plate 8 and the mounting frame 7, providing space for the eccentric cam 11 to rotate. Please refer to Figure 2 , Limit blocks 14 are installed on both sides of the adjusting rod 6. Limit tracks 15 are welded to the bottom of the mounting frame 1 at positions corresponding to the limit blocks 14. The limit blocks 14 are inserted into the interior of the limit tracks 15, enabling the adjusting rod 6 to stably adjust the distance between the eccentric cam 11 and the film pressing roller.

[0032] Please refer to Figure 1 , Support rods 16 are installed at the four corners of the bottom of the mounting frame 1. Mounting seats 17 are installed at the bottoms of the support rods 16. The parts where the support rods 16 are installed are far from the mounting frame 7, thus not affecting the normal installation of the film pressing roller.

[0033] Bolts 18 are screwed on the upper surfaces of the mounting seats 17. The lower parts of the bolts 18 are screwed on the surface of the plastic film pressing machine. The mounting seats 17 can be fixed through the bolts 18, thereby improving the stability of the device.

[0034] In operation, this solution works as follows: First, the mounting base 17 is fixed by bolts 18, which improves the stability of the device. The support rod 16 is installed far from the mounting frame 7, so it will not affect the normal installation of the pressure roller. Then, the motor 9 is started, which drives the eccentric shaft 10 to rotate. The eccentric shaft 10 drives the eccentric cam 11 to rotate. Moving the eccentric cam 11 to the appropriate position can adjust the pressing force of the pressure roller. Finally, the motor 2 is started, which drives the first turntable 3 to rotate. This drives the second turntable 4 to rotate synchronously through the belt 31, which in turn drives the adjusting rod 6 to rise and fall synchronously. This can adjust the distance between the eccentric cam 11 and the pressure roller, so that the eccentric cam 11 can make close contact with the pressure roller. This can compensate for the gap caused by the wear of the eccentric cam 11 surface in the positioning working area, and can accurately adjust the pressure of the plastic film pressing machine.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] 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 pressure regulating structure for a plastic film pressing machine, characterized in that, Comprising: An installation frame (1), a motor (2) is installed at the bottom of the installation frame (1), a first turntable (3) is installed at the rotor output end of the motor (2), a second turntable (4) is provided behind the first turntable (3), and a belt (31) is sleeved between the first turntable (3) and the second turntable (4); Guide rods (5), arranged below the first turntable (3) and the second turntable (4), and adjusting rods (6) are rotatably connected to the surfaces of the guide rods (5); An installation frame (7), arranged below the installation frame (1), connecting plates (8) are installed on both the front and the back of the installation frame (7), and the bottom ends of the adjusting rods (6) are connected to the surfaces of the connecting plates (8); A motor (9), arranged inside the installation frame (7), an eccentric shaft (10) is installed at the rotor output end of the motor (9), and eccentric cams (11) are evenly distributed on the surface of the eccentric shaft (10).

2. The pressure adjustment structure of a plastic film pressing machine according to claim 1, characterized in that: Sliders (12) are installed on both sides of the installation frame (7), and slide rails (13) are welded to both sides of the bottom of the installation frame (1).

3. The pressure adjustment structure of a plastic film pressing machine according to claim 1, characterized in that: The second turntable (4) is connected to the bottom of the installation frame (1) through a bearing, and the connecting end of the eccentric shaft (10) is also installed inside the installation frame (7) through a bearing.

4. The pressure adjustment structure of a plastic film pressing machine according to claim 1, characterized in that: The installation frame (1) is designed in a shape like the Chinese character 'ri', the connecting plate (8) is designed in a shape like the Chinese character'mi', limiting blocks (14) are installed on both sides of the adjusting rod (6), and limiting tracks (15) are welded to the corresponding positions on the bottom of the installation frame (1) corresponding to the limiting blocks (14).

5. The pressure adjustment structure of a plastic film pressing machine according to claim 1, characterized in that: Support rods (16) are installed at the four corners of the bottom of the installation frame (1), and mounting seats (17) are installed at the bottoms of the support rods (16).

6. The pressure adjustment structure of a plastic film pressing machine according to claim 5, characterized in that: Bolts (18) are rotatably connected to the upper surfaces of the mounting seats (17), and the lower parts of the bolts (18) are rotatably connected to the surface of the plastic film pressing machine.

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