Plastic film calender

Abstract

The utility model discloses a plastic film calender, which relates to the technical field of plastic film production, and comprises a bottom plate, four corners of the lower end of the bottom plate are symmetrically and fixedly connected with support columns, the front side of the upper end of the bottom plate is fixedly provided with a mounting rack, and the lower end of the inner side of the mounting rack is rotatably connected with a lower compression roller; an adjusting mechanism is installed above the lower pressing roller, a scraping mechanism is installed above the adjusting mechanism, and a first support is fixedly installed on the rear side of the upper end of the bottom plate. Under the cooperation of the sliding groove, the connecting block, the upper pressing roller, the mounting base, the second motor, the guide block, the guide groove and the electric push rod, the electric push rod can push the connecting block to move up and down in the sliding groove, so that the upper pressing roller can be driven to move synchronously, and the distance between the upper pressing roller and the lower pressing roller can be adjusted; therefore, the calender can be used for calendering plastic films with different thicknesses, and the applicability of the calender is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic film production, and particularly relates to a plastic film calender. Background Art

[0002] Films made of polyvinyl chloride, polyethylene, polypropylene, polystyrene and other resins are used for packaging and as a laminating layer. Plastic packaging and plastic packaging products are taking up an increasingly large share in the market. In particular, composite plastic flexible packaging has been widely applied in the fields of food, medicine, chemical industry, etc. Among them, food packaging accounts for the largest proportion, such as beverage packaging, quick-frozen food packaging, cooked food packaging, fast food packaging, etc. These products have brought great convenience to people's lives.

[0003] A calender is a machine composed of two or more rollers arranged in a certain form. At a certain temperature, it presses and extends rubber or plastic into a film with a certain thickness and surface shape, and can apply rubber to fiber cord fabric or steel cord fabric. A plastic calender is mainly a processing machine used in the production of various plastic films and the manufacture of PVC calendered artificial leather products.

[0004] In view of the existing technology, the following problems exist:

[0005] During the actual use of the existing calender, the structure of the existing device is relatively fixed, and it is difficult to adjust the distance between the calender rolls during calendering. Therefore, it is difficult to meet the requirements for different film thicknesses, resulting in certain limitations in use. At the same time, during calendering, the existing calender will adhere to excess impurities on the two groups of calender rolls, thus affecting the production quality of plastic films. Content of the Utility Model

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A plastic film calender includes a bottom plate. Four corners at the lower end of the bottom plate are symmetrically and fixedly connected with support columns. The front side at the upper end of the bottom plate is fixedly installed with a mounting frame. The lower end inside the mounting frame is rotatably connected with a lower calender roll. An adjusting mechanism is installed above the lower calender roll, and a scraping mechanism is installed above the adjusting mechanism. The rear side at the upper end of the bottom plate is fixedly installed with a support frame one. The inside of the support frame one is rotatably connected with an intermediate roll. The rear end of the support frame one is fixedly installed with a support frame two. The inside of the support frame two is rotatably connected with a winding roll. The left front side of the bottom plate is fixedly installed with a fixing plate. The upper end of the fixing plate is fixedly installed with a motor one. The output end of the motor one is drivingly connected with a transmission gear. The lower left side of the left end of the mounting frame is rotatably connected with a driven gear.

[0008] Preferably, the adjusting mechanism includes a sliding groove. The left and right inner walls at the upper end of the mounting frame are symmetrically provided with sliding grooves. A connecting block is slidably connected inside the sliding groove. A upper pressing roller is rotatably connected between the two connecting blocks. A mounting seat is fixedly installed at the left end of the left connecting block. A second motor is fixedly installed at the upper end of the mounting seat. Guide blocks are symmetrically and fixedly installed on both the front and rear sides of the connecting block. Guide grooves are symmetrically provided on both the front and rear inner walls of the sliding groove. An electric push rod is fixedly installed at the top end inside the sliding groove.

[0009] Preferably, the output end of the second motor is drivingly connected to the left end of the upper pressing roller.

[0010] Preferably, the guide block matches the guide groove and is slidably connected therewith. The output end of the electric push rod is fixedly connected to the upper end of the connecting block.

[0011] Preferably, the scraping mechanism includes a hydraulic cylinder. The lower end of the hydraulic cylinder is fixedly connected to the middle of the top of the mounting frame. The output rod of the hydraulic cylinder is fixedly connected to a connecting plate. A scraping plate is installed at the lower end of the connecting plate. Slide rods penetrate and slide through both the left and right sides of the top of the mounting frame.

[0012] Preferably, the lower end of the connecting plate is fixedly connected to the middle of the upper end of the scraping plate.

[0013] Preferably, the lower ends of the slide rods are symmetrically and fixedly connected to both sides of the upper end of the scraping plate.

[0014] Preferably, both the lower pressing roller and the upper pressing roller are in contact with the inner side of the scraping plate. The left end of the lower pressing roller is drivingly connected to the right end of the driven gear. The driving gear meshes with the driven gear.

[0015] Due to the adoption of the above technical solutions, the technical progress achieved by the present utility model compared with the prior art is as follows:

[0016] 1. The present utility model provides a plastic film calender. Through the adjusting mechanism, with the cooperation of the sliding groove, the connecting block, the upper pressing roller, the mounting seat, the second motor, the guide block, the guide groove, and the electric push rod, the electric push rod can be used to push the connecting block to move up and down in the sliding groove, thereby driving the upper pressing roller to move synchronously, so as to adjust the distance between the upper pressing roller and the lower pressing roller, enabling the calender to calender plastic films of different thicknesses and improving the applicability of the calender.

[0017] 2. The present utility model provides a plastic film calender. Through the scraping mechanism, with the cooperation of the hydraulic cylinder, the connecting plate, the scraping plate, and the slide rod, the hydraulic cylinder can be used to push the scraping plate to move, so that the two scraping plates can contact the lower pressing roller and the upper pressing roller. Then, when the two pressing rollers rotate, the impurities adhered to their surfaces can be scraped and cleaned by the scraping plates, thereby avoiding affecting the production quality of the plastic film. Description of the Drawings

[0018] Figure 1 This is a schematic structural diagram of the plastic film calender of the present utility model;

[0019] Figure 2 This is a schematic structural diagram of the side view of the plastic film calender of the present utility model;

[0020] Figure 3 This is a schematic structural diagram of the detail view of the plastic film calender of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of the adjusting mechanism of the present utility model;

[0022] Figure 5 This is a schematic structural diagram of the scraping mechanism of the present utility model.

[0023] In the figure: 1, bottom plate; 2, support column; 3, mounting frame; 4, lower pressing roller; 5, adjusting mechanism; 6, scraping mechanism; 7, support one; 8, intermediate roller; 9, support two; 10, winding roller; 11, fixing plate; 12, motor one; 13, driving gear; 14, driven gear; 51, sliding groove; 52, connecting block; 53, upper pressing roller; 54, mounting seat; 55, motor two; 56, guiding block; 57, guiding groove; 58, electric push rod; 61, hydraulic cylinder; 62, connecting plate; 63, scraping plate; 64, sliding rod. Detailed Embodiment

[0024] The following further describes the present utility model in detail with reference to embodiments:

[0025] As Figures 1-5 shown, the present utility model provides a plastic film calender, which includes a bottom plate 1. Four corners at the lower end of the bottom plate 1 are symmetrically and fixedly connected with support columns 2. The front side of the upper end of the bottom plate 1 is fixedly installed with a mounting frame 3. The lower end inside the mounting frame 3 is rotatably connected with a lower pressing roller 4. An adjusting mechanism 5 is installed above the lower pressing roller 4. A scraping mechanism 6 is installed above the adjusting mechanism 5. The rear side of the upper end of the bottom plate 1 is fixedly installed with a support one 7. The inside of the support one 7 is rotatably connected with an intermediate roller 8. The intermediate roller 8 can ensure the stability of the conveying during the winding process of the plastic film. The rear end of the support one 7 is fixedly installed with a support two 9. The inside of the support two 9 is rotatably connected with a winding roller 10. The winding roller 10 can wind the plastic film after calendering. The left side of the front end of the bottom plate 1 is fixedly installed with a fixing plate 11. The upper end of the fixing plate 11 is fixedly installed with a motor one 12. The output end of the motor one 12 is drivingly connected with a driving gear 13. The lower side of the left end of the mounting frame 3 is rotatably connected with a driven gear 14.

[0026] The lower pressing roller 4 and the upper pressing roller 53 are both in contact with the inner side of the scraping plate 63. The left end of the lower pressing roller 4 is drivingly connected to the right end of the driven gear 14, and the driving gear 13 meshes with the driven gear 14.

[0027] Through the adjusting mechanism 5, the electric push rod 58 can be used to push the connecting block 52 to move up and down in the sliding groove 51, so as to drive the upper pressing roller 53 to move synchronously, so as to adjust the distance between the upper pressing roller 53 and the lower pressing roller 4, so that the calender can calender plastic films of different thicknesses, improving the applicability of the calender. Through the scraping mechanism 6, the hydraulic cylinder 61 can be used to push the scraping plate 63 to move, so that the two scraping plates 63 can contact the lower pressing roller 4 and the upper pressing roller 53. Then, when the two pressing rollers rotate, the impurities adhering to their surfaces can be scraped and cleaned by the scraping plate 63, thus avoiding affecting the production quality of the plastic film.

[0028] As Figure 4 shown, the adjusting mechanism 5 includes a sliding groove 51. The left and right inner walls of the upper end of the mounting frame 3 are symmetrically provided with sliding grooves 51. A connecting block 52 is slidably connected inside the sliding groove 51. An upper pressing roller 53 is rotatably connected between the two connecting blocks 52. A mounting seat 54 is fixedly installed at the left end of the left connecting block 52. A second motor 55 is fixedly installed at the upper end of the mounting seat 54. Guide blocks 56 are symmetrically and fixedly installed on the front and rear sides of the connecting block 52. Guide grooves 57 are symmetrically provided on the front and rear inner walls of the sliding groove 51. An electric push rod 58 is fixedly installed at the top end inside the sliding groove 51.

[0029] The output end of the second motor 55 is drivingly connected to the left end of the upper pressing roller 53.

[0030] The guide block 56 is matched with the guide groove 57 and is slidably connected. The output end of the electric push rod 58 is fixedly connected to the upper end of the connecting block 52.

[0031] When the connecting block 52 moves up and down in the sliding groove 51, it will drive the guide block 56 to slide synchronously in the guide groove 57, thereby improving the stability of the connecting block 52 during movement.

[0032] As Figure 5 shown, the scraping mechanism 6 includes a hydraulic cylinder 61. The lower end of the hydraulic cylinder 61 is fixedly connected to the middle of the top of the mounting frame 3. The output rod of the hydraulic cylinder 61 is fixedly connected to a connecting plate 62. A scraping plate 63 is installed at the lower end of the connecting plate 62. Slide rods 64 penetrate and slide on the left and right sides of the top of the mounting frame 3.

[0033] The lower end of the connecting plate 62 is fixedly connected to the middle of the upper end of the scraping plate 63.

[0034] The lower ends of the slide rods 64 are symmetrically and fixedly connected to both sides of the upper end of the scraping plate 63.

[0035] When the squeegee 63 moves, it will drive the slide bar 64 to slide synchronously, thereby improving the stability of the squeegee 63 during movement.

[0036] Next, the working principle of the plastic film calender will be specifically described.

[0037] As Figures 1-5 shown, when the plastic film calender is in use, first place the plastic film between the lower pressing roller 4 and the upper pressing roller 53, so that the lower pressing roller 4 and the upper pressing roller 53 can contact the plastic film. Then, start the first motor 12 and the second motor 55 at the same time. The first motor 12 drives the transmission gear 13 to rotate, so that the rotating transmission gear 13 drives the lower pressing roller 4 to rotate through the engaged driven gear 14, and the second motor 55 drives the upper pressing roller 53 to rotate. Furthermore, the upper pressing roller 53 and the lower pressing roller 4 are used to calender the plastic film. At the same time, the electric push rod 58 can be started, so that the electric push rod 58 drives the connecting block 52 to slide up and down in the chute 51, so that the connecting block 52 drives the upper pressing roller 53 to move synchronously. Furthermore, the distance between the upper pressing roller 53 and the lower pressing roller 4 can be adjusted, so as to meet the calendering of plastic films with different thicknesses, improving the applicability of the calender. At the same time, the hydraulic cylinder 61 can be started, so that the hydraulic cylinder 61 pushes the squeegee 63 towards the upper pressing roller 53 and the lower pressing roller 4 through the connecting plate 62, so that the two squeegees 63 are closely attached to the lower pressing roller 4 and the upper pressing roller 53. When the two pressing rollers rotate to calender the plastic film, the squeegee 63 can scrape the two pressing rollers, and the attached impurities can be scraped off, avoiding the influence of impurities attached to the pressing rollers on the production quality of plastic film calendering.

[0038] The above has generally described the present invention in detail. However, based on the present invention, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, the modifications or improvements made without departing from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A plastic film calender, comprising a bottom plate (1), wherein four corners of the bottom end of the bottom plate (1) are symmetrically fixedly connected with pillars (2), characterized in that: A mounting frame (3) is fixedly mounted on the front side of the upper end of the base plate (1), a lower pressure roller (4) is rotatably connected to the inner lower end of the mounting frame (3), an adjustment mechanism (5) is mounted above the lower pressure roller (4), a scraping mechanism (6) is mounted above the adjustment mechanism (5), a bracket 1 (7) is fixedly mounted on the rear side of the upper end of the base plate (1), an intermediate roller (8) is rotatably connected to the inner side of the bracket 1 (7), a bracket 2 (9) is fixedly mounted on the rear end of the bracket 1 (7), a receiving roller (10) is rotatably connected to the inner side of the bracket 2 (9), a fixing plate (11) is fixedly mounted on the left side of the front end of the base plate (1), a motor 1 (12) is fixedly mounted on the upper end of the fixing plate (11), a transmission gear (13) is transmission-connected to the output end of the motor 1 (12), and a driven gear (14) is rotatably connected to the lower left end of the mounting frame (3).

2. A plastic film calender according to claim 1, characterized in that: The adjusting mechanism (5) comprises a slide groove (51), the left and right inner walls of the upper end of the mounting frame (3) are symmetrically provided with slide grooves (51), the interior of the slide groove (51) is slidably connected with a connecting block (52), an upper pressure roller (53) is rotatably connected between two groups of the connecting blocks (52), a mounting seat (54) is fixedly installed at the left end of the left connecting block (52), a motor 2 (55) is fixedly installed at the upper end of the mounting seat (54), guide blocks (56) are symmetrically fixedly installed on the front and rear sides of the connecting block (52), the front and rear inner walls of the slide groove (51) are symmetrically provided with guide grooves (57), and an electric push rod (58) is fixedly installed at the top end of the interior of the slide groove (51).

3. A plastic film calender according to claim 2, characterized in that: The output end of the second motor (55) is transmission-connected to the left end of the upper pressing roller (53).

4. A plastic film calender according to claim 3, characterized in that: The guide block (56) matches the guide groove (57) and is slidably connected, and the output end of the electric push rod (58) is fixedly connected to the upper end of the connection block (52).

5. A plastic film calender according to claim 1, characterized in that: The scraping mechanism (6) comprises a hydraulic cylinder (61), the lower end of which is fixedly connected to the middle of the top of the mounting frame (3), the output rod of the hydraulic cylinder (61) is fixedly connected to a connecting plate (62), a scraper (63) is installed at the lower end of the connecting plate (62), and sliding rods (64) are inserted and slidably penetrate the left and right sides of the top of the mounting frame (3).

6. A plastic film calender according to claim 5, characterized in that: The lower end of the connecting plate (62) is fixedly connected to the middle of the upper end of the scraper (63).

7. A plastic film calender according to claim 6, characterized in that: The lower end of the sliding rod (64) is symmetrically fixedly connected to both sides of the upper end of the scraper (63).

8. A plastic film calender according to claim 1, characterized in that: The lower pressure roller (4) and the upper pressure roller (53) are both in contact with the inner side of the scraper (63); the left end of the lower pressure roller (4) is transmission-connected to the right end of the driven gear (14); and the transmission gear (13) is meshed with the driven gear (14).

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