Calendering device for production and processing of HDPE (high-density polyethylene) sheets

Abstract

The utility model relates to the technical field of HDPE (high-density polyethylene) sheet stock production and processing, in particular to a calendering device for HDPE sheet stock production and processing, which comprises a lower calendering component on a bottom plate and an upper calendering component matched with the lower calendering component for use, the upper calendering component or the lower calendering component comprises a fixing frame, a calendering roller is rotatably connected between two inner side walls of the fixing frame, and the upper calendering component and the lower calendering component are arranged on the bottom plate. A cleaning piece for cleaning the calendering roller is arranged in an inner cavity of the fixing frame, the cleaning piece comprises a sliding plate which is vertically connected between the two inner side walls of the fixing frame in a sliding mode, an arc-shaped friction block which abuts against the calendering roller is fixedly installed at the bottom end of the sliding plate through a U-shaped frame, and the top end of the fixing frame is in threaded connection with a threaded rod which is rotationally connected with the sliding plate; according to the utility model, the calender rollers can be selectively cleaned according to the working requirements of workers, so that great convenience is provided for the use of the workers.

Description

Technical Field

[0001] This utility model relates to the field of HDPE sheet production and processing technology, specifically to a calendering device for HDPE sheet production and processing. Background Technology

[0002] HDPE sheets require calendering during production and processing. Calendering HDPE sheets improves their physical properties, achieves precise thickness and dimensions, enhances surface quality, increases ductility and plasticity, and improves production efficiency, thereby meeting the needs of different fields for HDPE sheets.

[0003] In the prior art, a utility model patent with publication number CN219311816U and titled "A Calendering Device for Plastic Mold Processing" includes a frame device for supporting the movement of plastic raw materials. The frame device is equipped with a pressing device for adjusting the calendering thickness by lifting and lowering. It also includes a pilot device installed on one side of the pressing device for pre-pressing and flattening the plastic raw material. The pilot device includes a lifting frame with a pre-pressing roller installed in the middle. Two sliding rods are symmetrically installed on the top of the lifting frame, and springs are installed on the sliding rods. This calendering device for plastic mold processing ensures the flattening and pre-pressing force of the plastic raw material by pressing it onto the support platform with the pre-pressing roller. The elastic pressing prevents the plastic raw material from being jammed. The pilot device's ability to adjust accordingly increases its applicability to different calendering requirements.

[0004] When the rollers in this patented equipment are pressing plastics, excess plastic often adheres to the rollers, which can easily cause contamination on the roller surface. The patented equipment makes it inconvenient to clean the roller surface, which in turn causes some inconvenience for the operators. Utility Model Content

[0005] The purpose of this invention is to provide a calendering device for the production and processing of HDPE sheets.

[0006] The technical problem solved by this utility model is that existing equipment is inconvenient for cleaning the surface of the roller.

[0007] This utility model can be achieved through the following technical solution: a calendering device for HDPE sheet production and processing, including a lower calendering assembly on a base plate and an upper calendering assembly used in conjunction with it. The upper or lower calendering assembly includes a fixed frame, a calendering roller is rotatably connected between the two inner side walls of the fixed frame, a servo motor for driving the calendering roller to rotate is fixedly installed on the outer wall of the fixed frame, and a cleaning component for cleaning the calendering roller is provided in the inner cavity of the fixed frame. The cleaning component includes a sliding plate vertically slidably connected between the two inner side walls of the fixed frame. An arc-shaped friction block that abuts against the calendering roller is fixedly installed at the bottom end of the sliding plate through a U-shaped frame. A threaded rod that is rotatably connected to the sliding plate is threaded to the top end of the fixed frame. Rotating the threaded rod causes the sliding plate to slide up and down in the inner cavity of the fixed frame. The sliding of the sliding plate enables the arc-shaped friction block to slide synchronously. When the arc-shaped friction block abuts against the calendering roller, the surface of the calendering roller is cleaned by the arc-shaped friction block by rotating the calendering roller.

[0008] A further technical improvement of this utility model is that: an inner groove is provided on the side of the arc-shaped friction block near the calendering roller, and a sponge plate matching the shape of the calendering roller is vertically and elastically slidably connected between the two inner side walls of the inner groove. A repair liquid receiving groove is provided in the inner cavity of the arc-shaped friction block and communicates with the inner groove. The inner cavity of the repair liquid receiving groove contains repair liquid, and the repair liquid receiving groove and the inner groove are sealed by a plug bead. The repair liquid in the inner cavity of the repair liquid receiving groove is easily transported to the sponge plate by sliding the plug bead.

[0009] A further technical improvement of this utility model is that: the top of the arc-shaped friction block is vertically and elastically slidably connected to a control rod that is fixed to the plug bead, and the vertically sliding control rod makes the plug bead slide synchronously.

[0010] A further technical improvement of this utility model is that a support plate is fixedly installed on the base plate, at least one telescopic cylinder is fixedly installed on the support plate, a lifting plate is fixedly installed at the output end of the telescopic cylinder, and the lifting plate is fixedly connected to the fixed frame in the upper calendering assembly.

[0011] A further technical improvement of this utility model is that the two fixed frames are fixedly connected to the base plate or the lifting plate through two fixed plates.

[0012] A further technical improvement of this utility model is that a pretreatment mechanism is provided on the base plate. The pretreatment mechanism includes a support platform fixed on the base plate, a synchronous plate fixedly installed on one side of the lifting plate, at least one sliding rod vertically and elastically slidably connected to the top of the synchronous plate, a connecting frame fixedly installed at the bottom of the sliding rod, and a pre-pressure roller rotatably connected between the two inner side walls of the connecting frame.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When cleaning the calender rolls, this utility model involves rotating two threaded rods in sequence. The rotation of the threaded rods causes the sliding plate to slide vertically, and the movement of the sliding plate drives the arc-shaped friction block to move synchronously. When the arc-shaped friction block comes into contact with the calender roll, the rotation of the threaded rods is stopped. At this time, two servo motors are driven, and the rotation of the two calender rolls facilitates the cleaning of their surfaces by the arc-shaped friction block. After cleaning is completed, the two threaded rods are rotated in the opposite direction to reset the arc-shaped friction block. By resetting it, damage to the calender rolls during normal use is avoided. This allows workers to selectively clean the calender rolls according to their work needs, thus providing great convenience for workers.

[0015] 2. This utility model allows for selective repair of the calender rolls after cleaning, based on their usage condition. During repair, two control levers are pressed and fixed with positioning pins. The blocking beads are slid synchronously by sliding the control levers. The sliding of the blocking beads not only facilitates the delivery of the repair liquid from the repair liquid container to the sponge board, but also ensures that the sponge board can come into contact with the surface of the calender roll. At this point, two servo motors are driven to rotate the two calender rolls. The rotation of the calender rolls ensures that the surface of the calender rolls makes uniform contact with the repair liquid in the sponge board, thus facilitating effective repair. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a side view of the connection structure of the fixing frame of this utility model;

[0019] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a side view of the U-shaped frame of this utility model.

[0021] In the picture:

[0022] 1. Base plate; 11. Support plate; 12. Telescopic cylinder; 13. Lifting plate; 14. Synchronous plate; 15. Sliding rod; 16. Compression spring; 17. Connecting frame; 18. Preload roller; 19. Support platform;

[0023] 2. Upper calendering assembly; 21. Fixing frame; 22. Calendering roll; 23. Servo motor; 24. Threaded rod; 25. Sliding plate; 26. U-shaped frame; 27. Arc-shaped friction block; 28. Fixing plate;

[0024] 3. Lower calendering assembly; 31. Inner tank; 32. Sponge board; 33. Repair fluid container; 34. Plug; 35. Control lever; 36. Sealing plug. Detailed Implementation

[0025] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0026] Please see Figure 1-4 As shown, this embodiment provides a technical solution: a calendering device for HDPE sheet production and processing, including a base plate 1, a calendering mechanism disposed on the base plate 1, the calendering mechanism including a support plate 11 fixed to the base plate 1 by a support rod, at least one telescopic cylinder 12 fixedly installed on the support plate 11, a lifting plate 13 fixedly installed at the output end of the telescopic cylinder 12, an upper calendering component 2 disposed at the bottom end of the lifting plate 13, and a lower calendering component 3 disposed on the base plate 1 for use in conjunction with the upper calendering component 2.

[0027] The upper calendering assembly 2 or the lower calendering assembly 3 includes a fixed frame 21. A calendering roller 22 is rotatably connected between the two inner side walls of the fixed frame 21. A servo motor 23 for driving the calendering roller 22 to rotate is fixedly installed on the outer wall of the fixed frame 21. A cleaning component for cleaning the calendering roller 22 is provided in the inner cavity of the fixed frame 21. The cleaning component includes a sliding plate 25 that is vertically slidably connected between the two inner side walls of the fixed frame 21. An arc-shaped friction block 27 that abuts against the calendering roller 22 is fixedly installed at the bottom end of the sliding plate 25 through a U-shaped frame 26. A threaded rod 24 is threadedly connected to the top end of the fixed frame 21. The bottom end of the threaded rod 24 is rotatably connected to the sliding plate 25 through a bearing.

[0028] An inner groove 31 is formed on the side of the arc-shaped friction block 27 near the calender roll 22. A sponge plate 32 is arranged between the two inner sidewalls of the inner groove 31. The sponge plate 32 matches the shape of the calender roll 22. Connecting blocks are fixedly installed on both sides of the sponge plate 32. A connecting groove for the connecting blocks to slide is formed in the inner cavity of the arc-shaped friction block 27. A support spring is fixedly installed at the top of the inner wall of the connecting groove and is fixed to the connecting block. A repair fluid receiving groove 33 is also formed in the inner cavity of the arc-shaped friction block 27, which communicates with the inner groove 31. The inner cavity of the repair fluid receiving groove 33 contains the repair fluid for repairing the calender roll 22. The repair fluid receiving tank 33 and the inner tank 31 are sealed by a plug bead 34. The top of the arc-shaped friction block 27 is vertically slidably connected to a control rod 35 fixed to the plug bead 34. A connecting spring is fixedly sleeved on the outer peripheral wall of the control rod 35. One end of the connecting spring is fixedly connected to the limiting handle at the top of the control rod 35, and the other end of the connecting spring is fixedly connected to the arc-shaped friction block 27. The control rod 35 and the arc-shaped friction block 27 are fixed by a positioning pin. The top of the arc-shaped friction block 27 has an opening that communicates with the repair fluid receiving tank 33. The inner cavity of the opening is threaded with a sealing plug 36.

[0029] The two fixed frames 21 are fixedly connected to the base plate 1 or the lifting plate 13 via two fixed plates 28.

[0030] A pretreatment mechanism is provided on the base plate 1. The pretreatment mechanism includes a support platform 19 fixed on the base plate 1. A synchronous plate 14 is fixedly installed on one side of the lifting plate 13. At least one sliding rod 15 is vertically slidably connected to the top of the synchronous plate 14. A connecting frame 17 is fixedly installed at the end of the sliding rod 15 away from the synchronous plate 14. A pre-pressure roller 18 is rotatably connected between the two inner side walls of the connecting frame 17. A compression spring 16 is fixedly sleeved on the outer peripheral wall of the sliding rod 15. One end of the compression spring 16 is fixedly connected to the synchronous plate 14, and the other end of the compression spring 16 is fixedly connected to the connecting frame 17.

[0031] In use, the HDPE raw material passes between two calendering rollers 22. Two servo motors 23 are driven simultaneously to rotate the two calendering rollers 22. The rotation of the two calendering rollers 22 facilitates the calendering of the HDPE raw material. The telescopic cylinder 12 is controlled to drive the calendering rollers 22 in the upper calendering assembly 2 to rise and fall via the lifting plate 13. The distance between the two calendering rollers 22 can be adjusted to adjust the thickness of the HDPE raw material calendering according to the actual needs of the workers. At the same time, the lifting plate 13 drives the synchronous plate 14 to move synchronously. Meanwhile, the compression spring 16 sleeved on the outer peripheral wall of the sliding rod 15 pushes down the connecting frame 17 through the elastic force of the spring, so that the pre-pressing roller 18 presses the HDPE raw material onto the support platform 19, thereby ensuring the flattening and pre-tightening force of the HDPE raw material.

[0032] When the surface of the calendering roller 22 needs to be cleaned after the HDPE raw material has been calendered, the two threaded rods 24 are rotated in sequence. The rotation of the threaded rods 24 causes the sliding plate 25 to slide vertically. The movement of the sliding plate 25 drives the arc-shaped friction block 27 to move synchronously. When the arc-shaped friction block 27 comes into contact with the calendering roller 22, the rotation of the threaded rods 24 is stopped. At this time, the two servo motors 23 are driven. The rotation of the two calendering rollers 22 facilitates the cleaning of their surface by the arc-shaped friction block 27. After cleaning, selective repairs can be performed on the calendering rollers 22 according to their condition. During repair, press the two control levers 35 respectively and fix them with positioning pins. Slide the control levers 35 to make the plug bead 34 slide synchronously. The sliding of the plug bead 34 not only facilitates the delivery of repair liquid in the repair liquid receiving tank 33 to the sponge plate 32, but also facilitates the sponge plate 32 to abut against the surface of the calendering roller 22. At this time, drive the two servo motors 23 to make the two calendering rollers 22 rotate. The rotation of the calendering rollers 22 facilitates the uniform contact between the surface of the calendering rollers 22 and the repair liquid in the sponge plate 32, thus facilitating the repair.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A calendering apparatus for HDPE sheet production and processing, comprising a lower calendering assembly (3) above a base plate (1) and an upper calendering assembly (2) used in conjunction with it, characterized in that: The upper calendering assembly (2) or the lower calendering assembly (3) includes a fixed frame (21). A calendering roller (22) is rotatably connected between the two inner sidewalls of the fixed frame (21). The inner cavity of the fixed frame (21) is provided with a cleaning component for cleaning the calendering roller (22). The cleaning component includes a sliding plate (25) that is vertically slidably connected between the two inner sidewalls of the fixed frame (21). The bottom end of the sliding plate (25) is fixedly installed with an arc-shaped friction block (27) that abuts against the calendering roller (22) through a U-shaped frame (26). The top end of the fixed frame (21) is threadedly connected with a threaded rod (24) that is rotatably connected to the sliding plate (25).

2. The calendering apparatus for HDPE sheet production and processing according to claim 1, characterized in that, The arc-shaped friction block (27) has an inner groove (31) on the side near the calendering roller (22). A sponge plate (32) matching the shape of the calendering roller (22) is vertically and elastically slidably connected between the two inner sidewalls of the inner groove (31). The inner cavity of the arc-shaped friction block (27) has a repair fluid receiving groove (33) communicating with the inner groove (31). The repair fluid receiving groove (33) and the inner groove (31) are sealed by a plug bead (34).

3. The calendering apparatus for HDPE sheet production and processing according to claim 2, characterized in that, The top of the arc-shaped friction block (27) is vertically and elastically slidably connected to a control lever (35) that is fixed to the plug bead (34).

4. The calendering apparatus for HDPE sheet production and processing according to claim 1, characterized in that, A support plate (11) is fixedly installed on the base plate (1), and at least one telescopic cylinder (12) is fixedly installed on the support plate (11). A lifting plate (13) is fixedly installed at the output end of the telescopic cylinder (12), and the lifting plate (13) is fixedly connected to the fixing frame (21) in the upper rolling assembly (2).

5. A calendering apparatus for HDPE sheet production and processing according to claim 4, characterized in that, The two fixed frames (21) are fixedly connected to the base plate (1) or the lifting plate (13) by two fixed plates (28).

6. A calendering apparatus for HDPE sheet production and processing according to claim 4, characterized in that, A pretreatment mechanism is provided on the base plate (1). The pretreatment mechanism includes a support platform (19) fixed on the base plate (1). A synchronous plate (14) is fixedly installed on one side of the lifting plate (13). At least one sliding rod (15) is vertically and elastically slidably connected to the top of the synchronous plate (14). A connecting frame (17) is fixedly installed at the bottom of the sliding rod (15). A pre-pressure roller (18) is rotatably connected between the two inner sidewalls of the connecting frame (17).

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