Vibration and stability protection device for PVC (polyvinyl chloride) calendering main machine

Abstract

The utility model relates to a PVC (polyvinyl chloride) calendaring host vibration and stability protection device which comprises a swivel joint, a fixing rod is movably mounted at the top of the swivel joint, a connecting plate is mounted on the fixing rod in a sleeving manner, a fixing plate is arranged at one end of the connecting plate, a hinge seat is fixedly arranged on the outer wall of the fixing plate, and the hinge seat is fixedly connected with the swivel joint. And the end of the connecting plate is movably connected with the hinge seat, a fixing groove is formed in the middle of the fixing plate, a fixing clamping plate is fixedly installed on the inner wall of the fixing plate, a support is fixedly installed on the outer wall of the top of the fixing plate, and a pull rod in sliding connection with the support is vertically installed on the support. According to the vibration and stability protection device for the PVC calendering main machine, when the swivel joints go wrong, the bottom rods of the fixing rods can continuously collide with the connecting plates due to shaking, so that the prompting effect is achieved, the service life of the swivel joints is prolonged, fluctuation and deviation of the thickness of a film are reduced, the product quality is improved, and the swivel joints cannot influence one another.

Description

Technical Field

[0001] The utility model relates to the technical field of film production equipment, in particular to a vibration and stability protection device for a PVC calender main machine. Background Technique

[0002] PVC film is a kind of film material made of polyvinyl chloride. Due to its excellent properties such as high transparency, good chemical resistance, waterproof, flame retardant and other characteristics, it is widely used in many industries.

[0003] The rotary joint is an important component of the calender, mainly used to connect and fix pipelines and rotating components (such as rollers), ensuring that during the rotation of the rollers, cooling water or other fluids can flow in and out smoothly, so as to maintain the temperature control of the rollers and ensure the smooth progress of the calendering process.

[0004] If the rotary joint vibrates, it will cause fluctuations and deviations in the film thickness, affecting the product quality. In existing calenders, several consecutive rotary joints are usually connected together by connecting rods. However, if one rotary joint vibrates, it may pull other rotary joints and cause them to break, affecting the service life of the rotary joint.

[0005] Therefore, there is an urgent need for a vibration and stability protection device for a PVC calender main machine that can extend the service life of the rotary joint and improve the product quality. Summary of the Invention

[0006] The purpose of the utility model is to overcome the above deficiencies and provide a vibration and stability protection device for a PVC calender main machine that can extend the service life of the rotary joint and improve the product quality.

[0007] The purpose of the utility model is achieved as follows:

[0008] A vibration and stability protection device for a PVC calender main machine includes a rotary joint. A fixed rod is movably installed at the top of the rotary joint. A connecting plate is sleeved on the fixed rod. One end of the connecting plate is provided with a fixed plate. A hinge seat is fixedly arranged on the outer wall of the fixed plate, and the end of the connecting plate is movably connected to the hinge seat. A fixed groove is formed at the middle position of the fixed plate. Fixed clamping plates are fixedly installed on the inner wall of the fixed plate, and a support is fixedly installed on the outer wall at the top of the fixed plate. A pull rod is vertically installed on the support and is slidably connected thereto. The bottom of the pull rod penetrates through the support and is fixedly installed with a movable clamping plate. A spring is sleeved on the outside of the pull rod, and the spring is located between the support and the movable clamping plate.

[0009] Preferably, the fixing rod includes a base movably installed on the top of the rotary joint, a bottom rod fixedly arranged on the top of the base, and a top rod fixedly arranged on the top of the bottom rod, and the diameter of the bottom rod is larger than that of the top rod.

[0010] Preferably, a circular hole for accommodating the fixing rod is formed at one end of the connecting plate away from the fixing plate. The diameter of the circular hole is smaller than the diameter of the bottom rod and larger than the diameter of the top rod. A groove is formed at the top of the connecting plate near one end of the fixing plate.

[0011] Preferably, the fixed clamping plate is located at the bottom of the fixing groove, and both the fixed clamping plate and the movable clamping plate are in a "V"-shaped plate structure. The side length of the movable clamping plate is larger than that of the fixed clamping plate.

[0012] Preferably, limiting seats are fixedly arranged on both sides of the outer wall of the fixing plate. A top column slidably connected therewith is vertically installed on the limiting seat. The lower part of the top column penetrates through the limiting seat and is sleeved with a spring and a nut for limiting the spring.

[0013] Preferably, the cross section of the bottom of the top column is arc-shaped.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. For the vibration and stability protection device of the PVC calendering main machine of the present utility model, by opening a hole in the connecting plate and passing the top rod of the fixing rod through the hole, when the rotary joint has problems such as vibration and looseness, it will drive the fixing rod to shake, and the bottom rod of the fixing rod will continuously collide with the connecting plate due to the shaking, thereby playing a prompting role, prolonging the service life of the rotary joint, reducing the fluctuation and deviation of the film thickness, improving the product quality, and a separate fixing rod is installed on each rotary joint, and there will be no mutual influence between the rotary joints.

[0016] 2. For the vibration and stability protection device of the PVC calendering main machine of the present utility model, by arranging a fixing plate at one end of the connecting plate, and opening a fixing groove on the fixing plate and arranging a fixed clamping plate and a movable clamping plate, the clamping force provided by the fixed clamping plate and the spring for the movable clamping plate can fix the fixing plate on the bolt head or other protruding objects, which is convenient for installation and fixation and easy to operate. The connecting plate is movably connected with the fixing plate, so that the connecting plate can droop downward, thereby ensuring the contact between the connecting plate and the fixing rod.

[0017] 3. For the vibration and stability protection device of the PVC calendering main machine of the present utility model, by arranging top columns at the bottom of both sides of the fixing plate, and the top columns are supported by springs, the top columns play a supporting role on both sides of the fixing plate, preventing the fixing plate from tilting to both sides after installation, and at the same time improving the fixing firmness and stability of the fixing plate. Description of the Drawings

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the vibration and stability protection device for the PVC calendering main machine of the present utility model.

[0019] Figure 2 This is an exploded structural schematic diagram of a part of the vibration and stability protection device for the PVC calendering main machine of the present utility model.

[0020] Figure 3 This is a structural schematic diagram of the fixed rod part of the vibration and stability protection device for the PVC calendering main machine of the present utility model.

[0021] Figure 4 This is a structural schematic diagram of the fixing plate part of the vibration and stability protection device for the PVC calendering main machine of the present utility model.

[0022] Among them: rotary joint 1, fixed rod 2, base 2.1, bottom rod 2.2, top rod 2.3, connecting plate 3, fixing plate 4, hinge seat 5, fixing groove 6, fixing clamp 7, support 8, pull rod 9, movable clamp 10, limit seat 11, top column 12, nut 13, spring 14. Specific implementation mode

[0023] See Figures 1 to 4 , the vibration and stability protection device for the PVC calendering main machine involved in the present utility model includes a rotary joint 1, and a fixed rod 2 is movably installed at the top of the rotary joint 1. When the rotary joint 1 has problems such as vibration and loosening, it will drive the fixed rod 2 to shake, and a separate fixed rod is installed on each rotary joint 1, and there will be no mutual influence between the rotary joints 1.

[0024] The fixed rod 2 includes a base 2.1 movably installed at the top of the rotary joint 1. A bottom rod 2.2 is fixedly arranged at the top of the base 2.1. A top rod 2.3 is fixedly arranged at the top of the bottom rod 2.2, and the diameter of the bottom rod 2.2 is larger than that of the top rod 2.3. A connecting plate 3 is sleeved on the fixed rod 2. One end of the connecting plate 3 is provided with a fixing plate 4. A circular hole for accommodating the fixed rod 2 is opened at the end of the connecting plate 3 away from the fixing plate 4. The diameter of the circular hole is smaller than the diameter of the bottom rod 2.2 and larger than the diameter of the top rod 2.3, so that the top rod 2.3 can pass through the circular hole, while the bottom rod 2.2 abuts against the connecting plate 3. The bottom rod 2.2 of the fixed rod 2 will continuously collide with the connecting plate 3 due to shaking, thus playing a prompting role, prolonging the service life of the rotary joint 1, reducing the fluctuation and deviation of the film thickness, and improving the product quality.

[0025] A hinge seat 5 is fixedly arranged on the outer wall of the fixing plate 4, and the end of the connecting plate 3 is movably connected with the hinge seat 5. The connecting plate 3 is movably connected with the fixing plate 4, so that the connecting plate 3 can droop downward, thereby ensuring the contact between the connecting plate 3 and the fixed rod 2.

[0026] A fixing groove 6 is provided at the middle position of the fixing plate 4. A fixing clamping plate 7 is fixedly installed on the inner wall of the bottom of the fixing plate 4, and a support 8 is fixedly installed on the outer wall of the top of the fixing plate 4. A pull rod 9 which is vertically installed and slidably connected therewith is installed on the support 8. A groove is provided at the top of the end of the connecting plate 3 close to the fixing plate 4 to reserve space for the installation and operation of the pull rod 9.

[0027] In order to fix the fixing plate 4, the bottom of the pull rod 9 penetrates through the support 8 and is fixedly installed with a movable clamping plate 10. Both the fixing clamping plate 7 and the movable clamping plate 10 are in a "V"-shaped plate structure. The side length of the movable clamping plate 10 is greater than that of the fixing clamping plate 7, which can better adapt to objects of different shapes and make the fixing more stable at the same time. A spring 14 is sleeved on the outside of the pull rod 9, and the spring 14 is located between the support 8 and the movable clamping plate 10. The clamping force provided by the fixing clamping plate 7 and the spring 1 for the movable clamping plate 10 can fix the fixing plate 4 on the bolt head or other protruding objects, which is convenient for installation and fixing and easy to operate.

[0028] In order to improve the stability of the fixing plate 4 during installation, limiting seats 11 are fixedly arranged on both sides of the outer wall of the fixing plate 4. A top column 12 which is vertically installed and slidably connected therewith is installed on the limiting seats 11. The lower part of the top column 12 penetrates through the limiting seats 11 and is sleeved with a spring 14 and a nut 13 which plays a role in limiting the spring 14. The top column 12 plays a supporting role on both sides of the fixing plate 4 to prevent the fixing plate 4 from tilting to both sides after installation, and can improve the fixing firmness and stability of the fixing plate 4 at the same time.

[0029] Furthermore, the cross-section of the bottom of the top column 12 is arc-shaped, so that the top column 12 can better contact the supporting object at the bottom.

[0030] The working principle of the vibration and stability protection device of the PVC calender main engine of the present utility model is as follows: First, select a suitable installation position, pull up the pull rod 9 to lift the movable clamping plate 10, then select a suitable bolt head or other protruding object and insert it into the fixing groove 6, release the pull rod 9, and the movable clamping plate 10 clamps under the action of the spring 14. Then insert the ejector rod 2.3 at the top of the fixing rod 2 into the connecting plate 3, and connect the base 2.1 at the bottom of the fixing rod 2 with the rotary joint 1. When the rotary joint 1 has problems such as vibration and looseness, it will drive the fixing rod 2 to shake, and the bottom rod 2.2 of the fixing rod 2 will continuously collide with the connecting plate 3 due to the shaking, thus playing a prompting role.

[0031] In addition: It should be noted that the above specific implementation manner is only an optimized solution of this patent. Any modification or improvement made by those skilled in the art according to the above conceptions is within the protection scope of this patent.

Claims

1. The vibration and stability protection device for the PVC calendering main machine is characterized in that: It includes a swivel joint (1), on the top of which a fixed rod (2) is movably installed. A connecting plate (3) is sleeved on the fixed rod (2). One end of the connecting plate (3) is provided with a fixing plate (4). A hinge seat (5) is fixedly arranged on the outer wall of the fixing plate (4), and the end of the connecting plate (3) is movably connected with the hinge seat (5). A fixing groove (6) is formed in the middle position of the fixing plate (4). A fixed clamping plate (7) is fixedly installed on the inner wall of the fixing plate (4), and a support (8) is fixedly installed on the outer wall of the top of the fixing plate (4). A pull rod (9) vertically installed and slidably connected with the support (8) is arranged on the support (8). The bottom of the pull rod (9) penetrates through the support (8) and is fixedly installed with a movable clamping plate (10). A spring (14) is sleeved on the outside of the pull rod (9), and the spring (14) is located between the support (8) and the movable clamping plate (10).

2. The PVC calender main machine vibration and stability protection device according to claim 1, characterized in that: The fixed rod (2) includes a base (2.1) movably installed on the top of the swivel joint (1). A bottom rod (2.2) is fixedly arranged on the top of the base (2.1). A top rod (2.3) is fixedly arranged on the top of the bottom rod (2.2), and the diameter of the bottom rod (2.2) is larger than that of the top rod (2.3).

3. The PVC calender main machine vibration and stability protection device according to claim 2, characterized in that: One end of the connecting plate (3) far from the fixing plate (4) is provided with a round hole for accommodating the fixed rod (2). The diameter of the round hole is smaller than the diameter of the bottom rod (2.2) and larger than the diameter of the top rod (2.3). A groove is formed at the top of one end of the connecting plate (3) close to the fixing plate (4).

4. The PVC calendering main machine vibration and stability protection device according to claim 1, characterized in that: The fixed clamping plate (7) is located at the bottom of the fixing groove (6). Both the fixed clamping plate (7) and the movable clamping plate (10) are in a "V"-shaped plate structure, and the side length of the movable clamping plate (10) is larger than that of the fixed clamping plate (7).

5. The PVC calendering main machine vibration and stability protection device according to claim 1, characterized in that: On both sides of the outer wall of the fixing plate (4), limit seats (11) are also fixedly arranged. A top column (12) vertically installed and slidably connected with the limit seats (11) is arranged on the limit seats (11). The lower part of the top column (12) penetrates through the limit seats (11) and is sleeved with a spring (14) and a nut (13) for limiting the spring (14).

6. The PVC calendering main machine vibration and stability protection device according to claim 5, characterized in that: The cross-section of the bottom of the top column (12) is arc-shaped.

Images