Guide roller for automatic continuous production of PVC (polyvinyl chloride) film

Abstract

The utility model provides a guide roller for the automatic continuous production of PVC film, including guide roller body, guide roller body is composed of outer sleeve, inner core and two connecting shaft, the surface of inner core is nested and connected with outer sleeve, the both ends of inner core are provided with telescopic connecting shaft, and the connecting shaft is connected with the outer sleeve. A fixing assembly is arranged at the connecting position of the connecting shaft and the inner core, a plurality of limiting sliding grooves are formed in the surface of the inner core at equal intervals, a plurality of limiting sliding strips matched with the limiting sliding grooves are fixedly arranged on the inner wall of the outer sleeve at equal intervals, and the limiting sliding strips are connected with the corresponding limiting sliding grooves in a nested mode. According to the guide roller structure, a traditional integrated design is replaced through a combined design, on one hand, replacement of the surface outer sleeve is facilitated, the service life of the guide roller body is prolonged, on the other hand, the connecting shaft of the guide roller is of a telescopic design, the length of the connecting shaft can be adjusted according to assembly requirements during assembly, and the assembly efficiency is improved. And the assembling convenience of the guide roller body is improved.

Description

Technical Field

[0001] This utility model belongs to the field of PVC film processing technology, and relates to guide rollers used in automated continuous production of PVC film. Background Technology

[0002] The main component of PVC film is polyvinyl chloride plastic, which is usually yellowish and translucent with a glossy appearance. Its structure generally includes three layers: the top layer is a coating, which mainly serves a decorative and protective function. In the automated production process, the PVC film is mainly guided and conveyed by guide rollers.

[0003] Traditional guide rollers are mainly integrally molded. During use, when local damage occurs on the surface of the guide roller, it affects the use of the entire guide roller. Secondly, the connecting shaft length of the guide roller is fixed, which affects the convenience of installation when installing equipment. Summary of the Invention

[0004] The purpose of this invention is to provide guide rollers for automated continuous production of PVC film, so as to solve the problems mentioned in the background art.

[0005] The objective of this utility model can be achieved through the following technical solution: a guide roller for automated continuous production of PVC film, comprising a guide roller body, the guide roller body being composed of an outer sleeve, an inner core, and two connecting shafts, the outer sleeve being nested on the surface of the inner core, and retractable connecting shafts being provided at both ends of the inner core, with a fixing component provided at the connection between the connecting shaft and the inner core, and multiple limiting grooves being equidistantly opened on the surface of the inner core, and multiple limiting strips adapted to the limiting grooves being fixedly provided equidistantly on the inner wall of the outer sleeve, the limiting strips being nested and connected to the corresponding limiting grooves.

[0006] In the aforementioned guide roller for automated continuous production of PVC film, the fixing component includes an upper clamping block and a lower clamping block. The upper clamping block and the lower clamping block are respectively fixedly connected to the inner core end face. Both ends of the upper clamping block and the lower clamping block are fixedly provided with connecting blocks that are connected as one unit. A fixing bolt is threaded between the two connecting blocks that are aligned, and a fixing nut is threaded to the bottom of the fixing bolt.

[0007] In the aforementioned guide rollers used for automated continuous production of PVC film, rubber pads are fixedly bonded to the inner walls of both the upper and lower clamping blocks, and the surface of the rubber pads is provided with uniformly distributed anti-slip textures.

[0008] In the aforementioned guide roller for automated continuous production of PVC film, the inner core has a cavity, and the cavity is fixedly provided with circumferentially distributed skeletons at equal intervals, with an electric heating block fixedly installed between two adjacent skeletons.

[0009] In the aforementioned guide roller for automated continuous production of PVC film, a threading sleeve is inserted and connected to one side of the cavity. The threading sleeve is rotatably connected to the center of the connecting shaft. A metal wire is inserted and connected inside the threading sleeve. One end of the metal wire is fixedly provided with a contact piece, and the contact piece is in contact with the electric heating block.

[0010] In the aforementioned guide roller for automated continuous production of PVC film, a bearing is fixedly installed on the surface of the connecting shaft, and a detachable limiting block is provided at the connection between the bearing and the connecting shaft.

[0011] Compared with the prior art, the advantages of the guide roller for automated continuous production of PVC film of this utility model are as follows: The guide roller structure replaces the traditional one-piece design with a modular design. On the one hand, it facilitates the replacement of the outer sleeve and extends the service life of the guide roller body. On the other hand, the connecting shaft of the guide roller is telescopic, and the length of the connecting shaft can be adjusted according to the assembly requirements during assembly, which improves the convenience of assembling the guide roller body. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the guide roller used in the automated continuous production of PVC film according to this utility model.

[0013] Figure 2 This is a cross-sectional structural diagram of the guide roller used in the automated continuous production of PVC film according to this utility model.

[0014] Figure 3 This is a partial structural schematic diagram of the guide roller used in the automated continuous production of PVC film according to this utility model.

[0015] In the figure, 1. Guide roller body; 2. Outer sleeve; 3. Fixing assembly; 301. Upper clamping block; 302. Lower clamping block; 303. Connecting block; 304. Fixing bolt; 305. Fixing nut; 4. Inner core; 5. Connecting shaft; 6. Threading sleeve; 7. Bearing; 8. Limiting slide groove; 9. Limiting slide bar; 10. Electric heating block; 11. Frame. Detailed Implementation

[0016] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0017] like Figure 1-3As shown, the guide roller for automated continuous production of PVC film of this utility model includes a guide roller body 1, which is composed of an outer sleeve 2, an inner core 4 and two connecting shafts 5. The outer sleeve 2 is nested on the surface of the inner core 4. Both ends of the inner core 4 are provided with retractable connecting shafts 5. A fixing component 3 is provided at the connection between the connecting shaft 5 and the inner core 4. Multiple limiting grooves 8 are equally spaced on the surface of the inner core 4. Multiple limiting strips 9 that are adapted to the limiting grooves 8 are fixedly provided at equal intervals on the inner wall of the outer sleeve 2. The limiting strips 9 are nested and connected to the corresponding limiting grooves 8.

[0018] Specifically, the guide roller structure replaces the traditional one-piece design with a modular design. On the one hand, it facilitates the replacement of the outer sleeve 2 and extends the service life of the guide roller body 1. On the other hand, the connecting shaft 5 of the guide roller is telescopic, and the length of the connecting shaft 5 can be adjusted according to the assembly requirements during assembly, which improves the convenience of assembling the guide roller body 1.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, the guide roller for automated continuous production of PVC film of this utility model has a fixing component 3 including an upper clamping block 301 and a lower clamping block 302. The upper clamping block 301 and the lower clamping block 302 are respectively fixedly connected to the end face of the inner core 4. Both ends of the upper clamping block 301 and the lower clamping block 302 are fixedly provided with a connecting block 303 that is connected as a whole. The two connecting blocks 303 that are aligned are threadedly connected with a fixing bolt 304. The bottom of the fixing bolt 304 is threadedly connected with a fixing nut 305.

[0020] Both the upper clamping block 301 and the lower clamping block 302 have rubber pads fixedly bonded to their inner walls, and the surface of the rubber pads has evenly distributed anti-slip textures.

[0021] Specifically, the upper clamping block 301 and the lower clamping block 302 work together to clamp and fix the connecting shaft 5, thereby ensuring the stability of the connection between the connecting shaft 5 and the inner core 4.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the guide roller for automated continuous production of PVC film of this utility model has a cavity inside the inner core 4, and a skeleton 11 distributed circumferentially is fixedly arranged at equal intervals inside the cavity. An electric heating block 10 is fixedly installed between two adjacent skeletons 11.

[0023] A wire threading sleeve 6 is inserted and connected to one side of the cavity. The wire threading sleeve 6 is rotatably connected to the center of the connecting shaft 5. A metal wire is inserted and connected inside the wire threading sleeve 6. One end of the metal wire is fixedly provided with a contact piece, and the contact piece is in contact with the electric heating block 10.

[0024] Specifically, the metal wire inside the threaded sleeve 6 contacts the internal electric heating block 10, enabling the electric heating block 10 to heat the guide roller body 1. When the guide roller guides the PVC film along the pressure, it can improve the thermal stability of the PVC film.

[0025] A bearing 7 is fixedly mounted on the surface of the connecting shaft 5, and a detachable limiting block is provided at the connection between the bearing 7 and the connecting shaft 5.

[0026] Specifically, by setting the limit block, the bearing 7 can be limited, which improves the stability of the bearing 7 assembly.

[0027] In specific implementation, during the production of the guide roller, the inner core 4 is first nested with the outer sleeve 2, and nested with the limiting slide 9 through the limiting slide groove 8 to complete the assembly of the outer sleeve 2. Then, the lengths of the two connecting shafts 5 are adjusted according to the installation position requirements of the guide roller body 1. The fixing nut 305 is loosened manually to make the upper clamping block 301 and the lower clamping block 302 in a relaxed state. Then, the connecting shaft 5 is pushed outward or inward manually to adjust the extension length of the connecting shaft 5 to match the installation position. Then, the fixing nut 305 is rotated manually to clamp and fix the connecting shaft 5 through the upper clamping block 301 and the lower clamping block 302, thus completing the length adjustment of the guide roller body 1 and improving the convenience of assembling the guide roller body 1.

[0028] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A guide roller for automated continuous production of PVC film, comprising a guide roller body (1), the guide roller body (1) being composed of an outer sleeve (2), an inner core (4), and two connecting shafts (5), wherein the outer sleeve (2) is nested on the surface of the inner core (4), and both ends of the inner core (4) are provided with retractable connecting shafts (5), characterized in that, A fixing component (3) is provided at the connection between the connecting shaft (5) and the inner core (4). Multiple limiting grooves (8) are equally spaced on the surface of the inner core (4). Multiple limiting strips (9) that are adapted to the limiting grooves (8) are fixedly provided at equal intervals on the inner wall of the outer sleeve (2). The limiting strips (9) are nested and connected with the corresponding limiting grooves (8).

2. The guide roller for automated continuous production of PVC film according to claim 1, characterized in that, The fixing component (3) includes an upper clamping block (301) and a lower clamping block (302). The upper clamping block (301) and the lower clamping block (302) are fixedly connected to the end face of the inner core (4). Both ends of the upper clamping block (301) and the lower clamping block (302) are fixedly provided with a connecting block (303) that is connected as one piece. The two connecting blocks (303) that are aligned are threadedly connected with a fixing bolt (304). The bottom of the fixing bolt (304) is threadedly connected with a fixing nut (305).

3. The guide roller for automated continuous production of PVC film according to claim 2, characterized in that, The inner walls of the upper clamping block (301) and the lower clamping block (302) are both fixedly bonded with rubber pads, and the surface of the rubber pads is provided with uniformly distributed anti-slip textures.

4. The guide roller for automated continuous production of PVC film according to claim 1, characterized in that, The inner core (4) has a cavity inside, and the cavity is fixedly provided with circumferentially distributed skeletons (11) at equal intervals. An electric heating block (10) is fixedly installed between two adjacent skeletons (11).

5. The guide roller for automated continuous production of PVC film according to claim 4, characterized in that, A threading sleeve (6) is inserted and connected to one side of the cavity. The threading sleeve (6) is rotatably connected to the center of the connecting shaft (5). A metal wire is inserted and connected inside the threading sleeve (6). One end of the metal wire is fixedly provided with a contact piece, and the contact piece is in contact with the electric heating block (10).

6. The guide roller for automated continuous production of PVC film according to claim 5, characterized in that, A bearing (7) is fixedly installed on the surface of the connecting shaft (5), and a detachable limiting block is provided at the connection between the bearing (7) and the connecting shaft (5).

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