PVC calendering film production device

Abstract

The invention belongs to the technical field of PVC calendering film production, and particularly relates to a PVC calendering film production device which comprises a portal frame, a heating roller is rotationally assembled on the middle side of the portal frame, a motor in transmission connection with the heating roller is assembled on the outer side of the portal frame, and a pressure mechanism matched with the heating roller is arranged on the upper side of the portal frame. Arc-shaped grooves located on the lower side of the heating roller are symmetrically formed in the left side and the right side of the portal frame in a contrast mode, sliding blocks are slidably assembled in the two arc-shaped grooves and provided with limiting mechanisms matched with the portal frame, a guide roller is rotationally assembled between the two sliding blocks, and driving mechanisms matched with the sliding blocks are arranged on the left side and the right side of the portal frame; by introducing the guide roller and the design of the adjustable contact area, the contact between the PVC calendering film and the heating roller is more sufficient, so that the heating efficiency and the heating uniformity are improved, which is crucial for ensuring the quality of the calendering film.

Description

Technical Field

[0001] The invention belongs to the technical field of PVC calendered film production, and in particular relates to a PVC calendered film production device. Background Art

[0002] PVC calendered film is a thin film material produced by calendering process with polyvinyl chloride (PVC) as the main raw material. PVC calendered film is widely used in packaging, construction, medical treatment, printing, electronics and other fields due to its excellent performance. In the packaging field, it is often used for packaging of food, medicine, daily necessities and other products; in the construction field, it can be used as waterproof material, wallpaper, door and window materials, etc.

[0003] After the calendered film layered reinforcement material is dipped in thermosetting resin, it is processed into a stacked board, and then subjected to pressurized and heated treatment in a laminator to solidify it. Therefore, in the production process of PVC calendered film, a laminator is needed to heat and press the PVC calendered film. However, the current working method is only to pass the PVC calendered film through the upper side of the heating roller, and a pressure roller is provided on the upper side of the heating roller to maintain downward pressure. The PVC calendered film passes through the heating roller and the pressure roller, and the purpose of heating and laminating the PVC calendered film can be achieved. However, such a design has a small contact area between the PVC calendered film and the heating roller. If the PVC calendered film is thick and more thermosetting resin is dipped, the PVC calendered film cannot be effectively heated. Summary of the invention

[0004] The purpose of the present invention is to provide a PVC calendering film production device to solve the problems existing in the background technology.

[0005] In order to achieve the above technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A PVC calendered film production device includes a gantry, a heating roller is rotatably installed on the middle side of the gantry, a motor is installed on the outer side of the gantry for transmission connection with the heating roller, a pressure mechanism matching the heating roller is provided on the upper side of the gantry, arc grooves located on the lower side of the heating roller are symmetrically provided on the left and right sides of the gantry, sliders are slidably installed in the two arc grooves, the two sliders are provided with limiting mechanisms matching the gantry, a guide roller is rotatably installed between the two sliders, and a driving mechanism matching the sliders is provided on the left and right sides of the gantry.

[0007] The pressure mechanism comprises a hydraulic rod arranged on the upper side of the gantry, the output end of the hydraulic rod is equipped with a mounting frame located in the gantry, and the mounting frame is equipped with a pressure wheel.

[0008] The left and right sides of the gantry are both provided with slide grooves, and the left and right sides of the installation frame are both provided with limit blocks extending into the slide grooves.

[0009] The limiting mechanism includes a stepped hole provided in the slider. A spring is provided in the stepped hole. The spring is connected to a top plate. The top plate is provided with a locking rod extending out of the stepped hole. A plurality of locking holes matching the locking rod are uniformly arranged in a ring on the inner wall of the arc-shaped groove. One end of the locking rod facing the locking hole is an arc surface.

[0010] The driving mechanism includes an annular hole provided in the gantry and corresponding to the arc-shaped groove. An annular member connected to the slider is provided in the annular hole.

[0011] The outer surface of the annular member is provided with anti-slip lines.

[0012] The arc-shaped groove is a T-shaped arc-shaped groove, and the slider is a T-shaped slider.

[0013] The present invention has the following technical advantages compared with the prior art:

[0014] 1. By introducing guide rollers and a design with an adjustable contact area, the contact between the PVC calendered film and the heating roller is more sufficient, thereby improving the heating efficiency and heating uniformity, which is crucial for ensuring the quality of the calendered film.

[0015] 2. The device allows the position of the guide rollers to be adjusted according to the parameters of the PVC calendered film, thereby changing the contact area with the heating roller. This flexibility enables the same device to process PVC calendered films of different specifications and thicknesses, improving the versatility and production efficiency of the device.

[0016] 3. The combination of the hydraulic rod and the pressure roller provides a stable pressure for the PVC calendered film, which helps to ensure the lamination effect during the calendering process and maintain the consistency and high quality of the product.

[0017] 4. Through the cooperation of the sliding groove and the limiting block, as well as the special design of the slider and the arc-shaped groove, the structural stability of the entire device is enhanced, reducing the shaking and errors during operation and improving the production accuracy.

[0018] 5. The design of the annular member, combined with the anti-slip lines, enables the staff to easily adjust the position of the slider, while the design of the limiting mechanism simplifies the locking and unlocking process, making the operation and maintenance of the entire device more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention can be further illustrated by the non-limiting embodiments given in the drawings.

[0020] Figure 1 is a schematic structural diagram of the present invention;

[0021] Figure 2 is a schematic cross-sectional structure diagram of the present invention Figure 1 ;

[0022] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0023] Figure 4 The cross-sectional structure of the present invention is shown in FIG. Figure 2 ;

[0024] The main component symbols are described as follows:

[0025] Gantry 1, heating roller 11, motor 12, arc groove 13, slider 14, guide roller 15, hydraulic rod 2, mounting frame 21, pressure wheel 22, slide groove 23, step hole 3, spring 31, top plate 32, locking rod 33, locking hole 34, annular hole 35, annular member 36. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figures 1-4 As shown, a PVC calendered film production device of the present invention includes a gantry 1, a heating roller 11 is rotatably installed on the middle side of the gantry 1, a motor 12 connected to the heating roller 11 is installed on the outer side of the gantry 1, a pressure mechanism matching the heating roller 11 is provided on the upper side of the gantry 1, arc grooves 13 located on the lower side of the heating roller 11 are symmetrically provided on the left and right sides of the gantry 1, sliders 14 are slidably installed in the two arc grooves 13, the two sliders 14 are provided with limiting mechanisms matching the gantry 1, a guide roller 15 is rotatably installed between the two sliders 14, and a driving mechanism matching the slider 14 is provided on the left and right sides of the gantry 1.

[0028] When the PVC calendered film needs to be laminated, one end of the PVC calendered film can be passed through the lower side of the guide roller 15, and then the PVC calendered film can be bent toward the upper side of the guide roller 15, so that the PVC calendered film is close to the heating roller 11, and then the PVC calendered film is passed between the heating roller 11 and the pressure mechanism. Compared with the PVC calendered film directly passing through the heating roller 11 and the pressure mechanism, this design increases the contact area between the PVC calendered film and the heating roller 11, and improves the heating effect of the PVC calendered film. At the same time, the pressure mechanism maintains downward pressure, so that the heated PVC calendered film can be pressed tightly to maintain the lamination effect of the PVC calendered film.

[0029] When it is necessary to heat-laminate PVC calendered films with different parameters, the contact area between the PVC calendered film and the heating roller 11 can be adjusted. The staff can drive the sliders 14 on both sides through the driving mechanism and simultaneously drive them to slide in the arc-shaped grooves 13, driving the sliders 14 to rotate around the heating roller 11. When the guiding roller 15 slides towards the side where the PVC calendered film is fed, the contact area between the PVC calendered film and the heating roller 11 can be reduced. When the driving mechanism drives the guiding roller 15 to slide in the arc-shaped groove 13 away from the side where the PVC calendered film is fed, the contact area between the PVC calendered film and the heating roller 11 can be increased. Therefore, with such a design, when adjusting the position of the slider 14 in the arc-shaped groove 13, the position of the guiding roller 15 relative to the heating roller 11 can be adjusted, thus adjusting the contact area between the PVC calendered film and the heating roller 11, and then adjusting the heating area between the PVC calendered film and the heating roller 11 according to PVC calendered films with different parameters;

[0030] The slider 14 is provided with a limiting mechanism matching the gantry 1. When the driving mechanism drives the slider 14 to slide in the arc-shaped groove 13, the limit of the limiting mechanism on the slider 14 is overcome. When the slider 14 is moved to a suitable position, the slider 14 is then limited by the limiting mechanism, thereby limiting the guiding roller 15.

[0031] The pressure mechanism includes a hydraulic rod 2 provided on the upper side of the gantry 1. The output end of the hydraulic rod 2 is equipped with a mounting frame 21 located inside the gantry 1, and the mounting frame 21 is equipped with a pressing wheel 22.

[0032] The PVC calendered film can pass through between the pressing wheel 22 and the heating roller 11. The contraction and extension of the hydraulic rod 2 drive the mounting frame 21 to slide up and down in the gantry 1, and the mounting frame 21 can drive the pressing wheel 22 to slide up and down, thus adjusting the pressure of the pressing wheel 22 on the PVC calendered film.

[0033] Chute grooves 23 are provided on both the left and right sides of the gantry 1, and limiting blocks extending into the chute grooves 23 are provided on both the left and right sides of the mounting frame 21. When the mounting frame 21 slides up and down in the gantry 1, it drives the limiting blocks to slide up and down in the chute grooves 23, thereby improving the stability of the mounting frame 21 sliding in the gantry 1.

[0034] The limiting mechanism includes a stepped hole 3 provided in the slider 14. A spring 31 is provided in the stepped hole 3. The spring 31 is connected to a top plate 32. The top plate 32 is provided with a locking rod 33 extending out of the stepped hole 3. A number of locking holes 34 matching the locking rod 33 are annularly and evenly provided on the inner wall of the arc-shaped groove 13. One end of the locking rod 33 facing the locking hole 34 is an arc surface.

[0035] The contact against the top plate 32 maintained under the action of the spring 31 in extension keeps the locking rod 33 extending out of the stepped hole 3 within the locking hole 34, thereby enabling the limiting of the slider 14, and then the guiding roller 15 can be limited. When the slider 14 moves under the action of the driving mechanism, and since the end face of the locking rod 33 is an arc surface, it is pressed back into the stepped hole 3 under the guiding action of the end face of the locking rod 33, driving the spring 31 to compress. In this way, the locking rod 33 can be driven to retract into the stepped hole 3. When the slider 14 moves to a suitable position and the locking rod 33 corresponds to the corresponding locking hole 34, it can be driven by the spring 31 in extension to extend the locking rod 33 out of the stepped hole 3 and lock it into the locking hole 34, thereby limiting the slider 14.

[0036] The driving mechanism includes an annular hole 35 provided in the gantry 1 and corresponding to the arc-shaped groove 13, and an annular member 36 connected to the slider 14 is provided in the annular hole 35. When the staff rotates the annular member 36 forcefully, the slider 14 can be driven to slide in the arc-shaped groove 13.

[0037] The outer surface of the annular member 36 is provided with anti-slip lines. The design of the anti-slip lines facilitates the staff to rotate the annular member 36.

[0038] The arc-shaped groove 13 is a T-shaped arc-shaped groove, and the slider 14 is a T-shaped slider. With such a design, when the slider 14 slides in the arc-shaped groove 13, the slider 14 can be prevented from moving out of the arc-shaped groove 13.

[0039] The above embodiments are only used to exemplarily illustrate the principles and effects of the present invention, rather than to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A PVC calendered film production device, comprising a gantry (1), characterized in that: A heating roller (11) is rotatably mounted on the middle side of the gantry (1), a motor (12) drivingly connected to the heating roller (11) is mounted on the outer side of the gantry (1), a pressure mechanism matching the heating roller (11) is disposed on the upper side of the gantry (1), arc grooves (13) located on the lower side of the heating roller (11) are symmetrically disposed on the left and right sides of the gantry (1), sliders (14) are slidably mounted in the two arc grooves (13), the two sliders (14) are both provided with limiting mechanisms matching the gantry (1), a guide roller (15) is rotatably mounted between the two sliders (14), and a driving mechanism matching the sliders (14) is disposed on the left and right sides of the gantry (1).

2. A PVC calendered film production device according to claim 1, characterized in that: The pressure mechanism comprises a hydraulic rod (2) arranged on the upper side of the gantry (1); the output end of the hydraulic rod (2) is equipped with a mounting frame (21) located inside the gantry (1); and the mounting frame (21) is equipped with a pressure wheel (22).

3. A PVC calendered film production device according to claim 1, characterized in that: The gantry (1) is provided with slide grooves (23) on both sides, and the installation frame (21) is provided with limit blocks extending into the slide grooves (23) on both sides.

4. A PVC calendering film production device according to claim 1, characterized in that: The limiting mechanism comprises a stepped hole (3) arranged in a slider (14), a spring (31) is arranged in the stepped hole (3), the spring (31) is connected to a top plate (32), the top plate (32) is provided with a locking rod (33) extending out of the stepped hole (3), a plurality of locking holes (34) matching the locking rod (33) are evenly arranged in an annular shape on the inner wall of the arc-shaped groove (13), and one end of the locking rod (33) facing the locking hole (34) is an arc surface.

5. A PVC calendered film production device according to claim 1, characterized in that: The driving mechanism comprises an annular hole (35) arranged on the gantry (1) and connected to the arc groove (13), and an annular member (36) connected to the slide block (14) is arranged in the annular hole (35).

6. A PVC calendered film production device according to claim 1, characterized in that: The outer surface of the annular member (36) is provided with anti-slip grooves.

7. A PVC calendered film production device according to claim 1, characterized in that: The arc groove (13) is a T-shaped arc groove, and the slider (14) is a T-shaped slider.

Images