Four-roller calendaring mechanism in PVC (polyvinyl chloride) film calendaring machine
By designing a four -roller pressure mechanism in the PVC membrane pressure machine, the combination of baking lights and material gallery is used to solve the problem of rubber drop and improve the quality of the membrane.
Patent Information
- Application Number
- CN202421421253.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-20
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-20
AI Technical Summary
The four-roll calendered part of the existing PVC film calendering machine is affected by the rolling order, causing the glue to fall off, affecting the quality of the film.
A four -roller pressure delay mechanism in the PVC membrane pressing machine is designed. By installing cross rods, brackets, guidance rails, auxiliary shafts, adjustment seats, baking lights, and collective baffles on the rack Collect and bake the auxiliary heating.
By setting the baking light and collecting baffle, the rubber is dropped to the membrane material of the four roller four, thereby improving the quality of the PVC membrane pressure delay.
Smart Images
Figure CN222406829U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of machinery and relates to a four-roller calendering mechanism in a PVC film calendering machine. Background Art
[0002] PVC film is made through a calendering process. Calendering is the process of passing heated polyvinyl chloride plastic through the gap between one or more pairs of horizontal rollers rotating in opposite directions, so that the material is subjected to extrusion and extension, and becomes a film with a certain thickness, width and smooth surface.
[0003] In the four-roll calendering part of the existing PVC film calender, due to the influence of the roller pressing sequence, rubber will fall between the pressing roller one and the pressing roller two and enter the pressing roller four, thereby affecting the quality of the entire PVC film. Therefore, it is necessary to design a four-roll calendering mechanism in the PVC film calender. Summary of the invention
[0004] The utility model aims to solve the above problems in the prior art and proposes a four-roller calendering mechanism in a PVC film calendering machine.
[0005] The purpose of the utility model can be achieved through the following technical solutions: a four-roll calendering mechanism in a PVC film calender, comprising a frame, on which pressure roller one, pressure roller two, pressure roller three and pressure roller four are horizontally rotatably arranged in sequence from top to bottom, and characterized in that a cross bar is installed on the frame, and brackets are fixed at the ends of the cross bar, and a guide rail is horizontally installed between the two brackets and an auxiliary shaft is horizontally rotatably installed, the guide rail is located directly above the auxiliary shaft, an adjustment seat is slidably installed on the guide rail, the adjustment seat is connected to a baking lamp through a mounting rod, and the baking lamp is arranged tilted downward, a screw is also threadedly connected to the adjustment seat, and an aggregate baffle is also installed on the auxiliary shaft.
[0006] A reset torsion spring is arranged between one end of the auxiliary shaft and the bracket. A nut is also threadedly connected to one end of the auxiliary shaft, and the nut can abut against the bracket.
[0007] The other end of the auxiliary shaft is connected with a limiting plate, and an upper limit piece and a lower limit piece matched with the limiting plate are installed on the bracket.
[0008] The upper limit piece and the lower limit piece are both made of rubber material.
[0009] The guide rail is provided with scale lines.
[0010] The screws and nuts are both hand-tightened parts.
[0011] Compared with the prior art, the four-roller calendering mechanism in this PVC film calender has the following advantages:
[0012] In the utility model, a baking lamp and a material collecting baffle are arranged. The baking lamp can assist heating for the local resetting of the pressing roller three, and the material collecting baffle prevents the rubber material dropped between the pressing roller one and the pressing roller two from dropping onto the film material of the pressing roller four, thereby greatly improving the quality of PVC film calendering. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the plane structure of the utility model;
[0014] Figure 2 It is a three-dimensional structural schematic diagram of the utility model with parts removed;
[0015] In the figure, 1, frame; 2, pressure roller four; 3, pressure roller three; 4, pressure roller two; 5, pressure roller one; 6, baking lamp; 7, aggregate baffle; 8, cross bar; 9, lower limit piece; 10, limit plate; 11, upper limit piece; 12, guide rail; 13, mounting rod; 14, screw; 15, nut; 16, reset torsion spring; 17, auxiliary shaft; 18, adjustment seat; 19, bracket. DETAILED DESCRIPTION
[0016] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.
[0017] like Figure 1-Figure 2As shown, the four-roll calendering mechanism in the present PVC film calender comprises a frame 1, on which roller one 5, roller two 4, roller three 3 and roller four 2 are horizontally rotatably arranged in sequence from top to bottom. Roller one 5, roller two 4, roller three 3 and roller four 2 adopt the existing structure, a cross bar 8 is installed on the frame 1, and brackets 19 are fixed at the ends of the cross bar 8. A guide rail 12 and an auxiliary shaft 17 are horizontally installed between the brackets 19, and the guide rail 12 is located directly above the auxiliary shaft 17. An adjustment seat 18 is slidably installed on the guide rail 12, and the adjustment seat 18 is connected to a baking lamp 6 through a mounting rod 13, and the baking lamp 6 is arranged tilted downward. With this structure, the baking lamp 6 can be adjusted to a desired baking position by cooperating with the adjustment seat 18 and the guide rail 12; a screw 14 is also threadedly connected to the adjustment seat 18, and an aggregate baffle 7 is also installed on the auxiliary shaft 17 Specifically: a reset torsion spring 16 is provided between one end of the auxiliary shaft 17 and the bracket 19, and a nut 15 is also threadedly connected to one end of the auxiliary shaft 17, and the nut 15 can abut against the bracket 19, and the other end of the auxiliary shaft 17 is connected to a limiting plate 10, and an upper limit piece 11 and a lower limit piece 9 matching with the limiting plate 10 are installed on the bracket 19. With this structure, when it is necessary to clean the aggregate baffle 7, the nut 15 is loosened, and under the elastic force of the torsion spring, the aggregate baffle 7 is flipped outward, and the limiting plate 10 abuts against the upper limit piece 11, so that the aggregate baffle 7 is inclined, thereby facilitating the cleaning of the aggregate baffle 7, and when the aggregate baffle 7 needs to work, the aggregate baffle 7 is pressed downward, the limiting plate 10 abuts against the lower limit piece 9, and the nut 15 can make the aggregate baffle 7 horizontal, and the rubber material dropped between the pressure roller 1 5 and the pressure roller 2 4 can be collected on the aggregate baffle 7.
[0018] The upper limit member 11 and the lower limit member 9 are both made of rubber material.
[0019] The guide rail 12 has scale lines on it.
[0020] The screw 14 and the nut 15 are both hand-tightened parts.
[0021] The above components are all common standard parts or components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.
[0022] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A four-roller calendering mechanism in a PVC film calendering machine, comprising a frame (1), on which a first pressing roller (5), a second pressing roller (4), a third pressing roller (3) and a fourth pressing roller (2) are horizontally arranged in sequence from top to bottom, characterized in that: A cross bar (8) is mounted on the frame (1), and brackets (19) are fixed to the ends of the cross bar (8). A guide rail (12) and an auxiliary shaft (17) are mounted horizontally between the brackets (19). The guide rail (12) is located directly above the auxiliary shaft (17). An adjustment seat (18) is slidably mounted on the guide rail (12). The adjustment seat (18) is connected to a baking lamp (6) via a mounting rod (13), and the baking lamp (6) is arranged tilted downward. A screw (14) is also threadedly connected to the adjustment seat (18), and an aggregate baffle (7) is also mounted on the auxiliary shaft (17).
2. The four-roller calendering mechanism in a PVC film calender according to claim 1, characterized in that: A return torsion spring (16) is provided between one end of the auxiliary shaft (17) and the bracket (19); one end of the auxiliary shaft (17) is also threadedly connected to a nut (15), and the nut (15) can abut against the bracket (19).
3. The four-roller calendering mechanism in a PVC film calender according to claim 2, characterized in that: The other end of the auxiliary shaft (17) is connected to a limiting plate (10), and an upper limit member (11) and a lower limit member (9) which match the limiting plate (10) are mounted on the bracket (19).
4. The four-roller calendering mechanism in a PVC film calender according to claim 3, characterized in that: The upper limit member (11) and the lower limit member (9) are both made of rubber material.
5. The four-roller calendering mechanism in a PVC film calender according to claim 1, characterized in that: The guide rail (12) has scale lines on it.
6. The four-roller calendering mechanism in a PVC film calender according to claim 2, characterized in that: The screw (14) and nut (15) are both hand-tightened parts.