Novel three-roller calender

Abstract

The utility model discloses a novel three-roller calender, which comprises a left calendering wall plate and a right calendering wall plate, and is characterized in that an upper cooling roller, a middle cooling roller and a lower cooling roller are rotatably arranged between the left calendering wall plate and the right calendering wall plate, the middle cooling roller and the lower cooling roller are horizontally arranged side by side, a cooling gap for a PP sheet to pass through is arranged between the middle cooling roller and the lower cooling roller, and the lower cooling roller is rotatably arranged on a front-back adjusting mechanism. The front-back adjusting mechanism is connected to the left calendering wall plate and the right calendering wall plate and used for driving the lower cooling roller to move back and forth in place so as to adjust the cooling gap, the upper cooling roller is located above the middle cooling roller, a flowing channel for a PP sheet to penetrate through is formed between the upper cooling roller and the middle cooling roller, and the upper cooling roller is rotationally connected to the up-down adjusting mechanism. And the up-down adjusting mechanism is connected to the left and right calendering wallboards and is used for driving the upper cooling roller to move up and down in place so as to adjust the flow channel distance between the upper and middle cooling rollers. According to the utility model, the cooling effect of the PP sheet is improved, and the adjustment of the bending degree of the cooling wrap angle of the PP sheet is realized.

Description

Technical Field

[0001] The utility model relates to an improved invention of a calender, and in particular to an improved invention of a new three-roller calender. Background Art

[0002] With the advancement of science and technology and the improvement of people's living standards, PP products have shown their unique value in more fields. Common PP products are used to make plastic beverage cups, ice cream cups, yogurt cups, lids, plates, packaging boxes and other packaging containers. Conventional three-roll calenders, due to the non-advanced processing equipment, do not meet the processing accuracy requirements of the cooling rollers, resulting in uneven thickness and poor cooling during sheet production, and the output does not meet the expected requirements. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a novel three-roller calender.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a new three-roll calender, including a right calendering wall panel and a left calendering wall panel, characterized in that: a lower cooling roller, a middle cooling roller and an upper cooling roller are rotatably provided between the right calendering wall panel and the left calendering wall panel, the middle cooling roller and the lower cooling roller are horizontally arranged side by side, and a cooling gap for the PP sheet to pass through is provided between the lower cooling roller and the middle cooling roller, the lower cooling roller can be rotatably provided on a front-and-rear adjustment mechanism, the front-and-rear adjustment mechanism is connected to the right calendering wall panel and the left calendering wall panel, and is used to drive the lower cooling roller to move forward and backward into position to adjust the cooling gap, the upper cooling roller is located above the middle cooling roller, and a flow channel for the PP sheet to pass through is provided between the upper cooling roller and the middle cooling roller, the upper cooling roller can be rotatably connected to the upper and lower adjustment mechanism, the upper and lower adjustment mechanism is connected to the right calendering wall panel and the left calendering wall panel, and is used to drive the upper cooling roller to move up and down into position to adjust the flow channel spacing between the upper cooling roller and the middle cooling roller.

[0005] The front-to-back adjustment mechanism includes a first sliding bearing seat, a second sliding bearing seat, a first hydraulic cylinder, and a second hydraulic cylinder; the first sliding bearing seat and the second sliding bearing seat are respectively slidably connected to the right rolling wall panel and the left rolling wall panel along the front-to-back direction, one end of the lower cooling roller is rotatably connected to the first sliding bearing seat, and the other end of the lower cooling roller is rotatably connected to the second sliding bearing seat; the first hydraulic cylinder is connected to the right rolling wall panel and is transmission-connected to the first sliding bearing seat, and the second hydraulic cylinder is connected to the left rolling wall panel and is connected to the second sliding bearing seat.

[0006] The up and down adjustment mechanism includes a third sliding bearing seat, a fourth sliding bearing seat and a third hydraulic cylinder and a fourth hydraulic cylinder; the third sliding bearing seat and the fourth sliding bearing seat are respectively connected to the right rolled wall panel and the left rolled wall panel for sliding along the up and down directions; one end of the upper cooling roller can be rotatably connected to the third sliding bearing seat, and the other end of the upper cooling roller can be rotatably connected to the fourth sliding bearing seat; the third hydraulic cylinder and the fourth hydraulic cylinder are respectively connected to the right rolled wall panel and the left rolled wall panel, and the third hydraulic cylinder and the fourth hydraulic cylinder are respectively connected to the third sliding bearing seat and the fourth sliding bearing seat, and are used to drive the third sliding bearing seat and the fourth sliding bearing seat to move up and down into place.

[0007] The third sliding bearing seat includes a third seat body, a third slider plate, a third seat cover and a third adjustment component; the fourth sliding bearing seat includes a fourth seat body, a fourth slider plate, a fourth seat cover and a fourth adjustment component; the third slider plate and the fourth slider plate are respectively connected to the right rolling wall plate and the left rolling wall plate in a sliding manner in the up-down direction; the third seat cover is connected to the third seat body in a sliding manner in the front-back direction; the fourth seat cover is connected to the fourth seat body in a sliding manner in the front-back direction; one end of the upper cooling roller is rotatably connected to the third seat body, and the other end of the upper cooling roller is rotatably connected to the fourth seat body; the third adjustment component is respectively connected to the third seat body, the third slider plate and the third seat cover, and is used to drive the third seat body, the third slider plate and the third seat cover to move up and down on the rolling wall plate; the fourth adjustment component is respectively connected to the fourth seat body, the fourth slider plate and the fourth seat cover, and is used to drive the fourth seat body, the fourth slider plate and the fourth seat cover to move up and down; the third hydraulic cylinder and the fourth hydraulic cylinder are respectively connected to the third seat body and the fourth seat body, and are used to drive the third seat body and the fourth seat body to move up and down into place.

[0008] The third adjustment assembly includes a third connecting block, a third push rod, a third limit block and a third nut corresponding to the third push rod; the third push rod and the third connecting block are threadedly connected, and the third connecting block is threadedly connected to the third seat body; the third nut is threadedly connected to the third push rod, and the fourth adjustment assembly includes a fourth connecting block, a fourth push rod, a fourth limit block and a fourth nut corresponding to the fourth push rod; the fourth push rod and the fourth connecting block are threadedly connected; the fourth connecting block is threadedly connected to the fourth seat body; the fourth nut is threadedly connected to the fourth push rod.

[0009] The left rolled wall panel and the right rolled wall panel are equipped with two sets of lifting drive mechanisms arranged front and back, and the lifting drive mechanisms include a first screw lift, a second screw lift, a linkage shaft and a first adjusting motor; the first screw lift is connected to the right rolled wall panel, and the second screw lift is connected to the left rolled wall panel, one end of the linkage shaft is connected to the input shaft of the first screw lift, and the other end of the linkage shaft is connected to the input shaft of the second screw lift; the first adjusting motor is connected to the input shaft of the first screw lift, and is used to drive the input shaft of the first screw lift to rotate and then drive the input shaft of the second screw lift to rotate through the linkage shaft.

[0010] It also includes: a first rotation drive mechanism connected to the lower cooling roller and used to drive the lower cooling roller to rotate; a second rotation drive mechanism connected to the middle cooling roller and used to drive the middle cooling roller to rotate; and a third rotation drive mechanism connected to the upper cooling roller and used to drive the upper cooling roller to rotate.

[0011] The first rotary drive mechanism includes a first drive servo motor, a first reduction gearbox, a first reduction gearbox mounting seat, a first reduction gear shaft, a first reduction gear sprocket and a first sprocket; the first drive servo motor is connected to the input end of the first reduction gearbox; the first reduction gearbox is fixedly mounted on the first reduction gearbox mounting seat; the first reduction gear shaft is sleeved into the output end of the first reduction gearbox; the first reduction gear sprocket is sleeved on the first reduction gear shaft; the first sprocket is sleeved on the lower cooling roller; the first reduction gearbox mounting seat is fixed on the left rolling wall panel; the output end of the first reduction gearbox and the lower cooling roller are driven by a chain; the second rotary drive mechanism includes a second drive servo motor, a second reduction gearbox, a second reduction gearbox mounting seat, a second reduction gear shaft, a second reduction gear sprocket and a second sprocket; the second drive servo motor is connected to the input end of the second reduction gearbox; the second reduction gearbox mounting seat Installed and fixed on the second reduction gearbox mounting seat; the second reducer shaft is sleeved into the output end of the second reduction gearbox; the second reducer sprocket is sleeved on the second reducer shaft; the second sprocket is sleeved on the middle cooling roller; the second reduction gearbox mounting seat is fixed on the left rolling wall panel; the third rotation drive mechanism includes a third drive servo motor, a third reduction gearbox, a third reduction gearbox mounting seat, a third reducer shaft, a third reducer sprocket, a third sprocket and a reduction gear mounting plate; the third drive servo motor is connected to the input end of the third reduction gearbox; the third reduction gearbox is installed and fixed on the third reduction gearbox mounting seat; the third reducer shaft is sleeved into the output end of the third reduction gearbox; the third reducer sprocket is sleeved on the third reducer shaft; the third sprocket is sleeved on the upper cooling roller; the third reduction gearbox mounting seat is fixed on the reducer mounting plate; the reducer mounting plate is fixed on the fourth sliding bearing seat.

[0012] It also includes a first fixed bearing seat, a second fixed bearing seat, a first rotary joint, a second rotary joint and a temperature detection gauge; the first fixed bearing seat is connected to the right rolling wall panel; the second fixed bearing seat is connected to the left rolling wall panel; one end of the middle cooling roller can be rotatably connected to the first fixed bearing seat, and the other end of the middle cooling roller can be rotatably connected to the second fixed bearing seat; one end of the first rotary joint can be rotatably connected to one end of the middle cooling roller, and one end of the second rotary joint can be rotatably connected to the other end of the middle cooling roller; the temperature detection gauge is threadedly connected to the other end of the second rotary joint.

[0013] The right rolled wall panel and the left rolled wall panel are connected via a plurality of arch support tubes; two roller devices are respectively connected to the bottom of the right rolled wall panel and the left rolled wall panel; a travel motor is connected to one set of the roller devices, and the travel motor is connected to the roller device and is used to drive the roller device to rotate.

[0014] The beneficial effect of the utility model is that the improved new three-roll calender, the PP sheet passes through the cooling gap and the flow channel in sequence, in the cooling gap, the lower cooling roller and the middle cooling roller press the PP sheet and cool the PP sheet to shape it, and the PP sheet passes through the flow channel and then winds around the upper cooling roller, and the upper cooling roller can further cool the glass PP sheet. After adopting the above structure, the cooling effect of the PP sheet is greatly increased, thereby preventing the PP sheet from being unsightly due to insufficient cooling during the production process, and improving the completeness and qualified rate of the PP sheet cooling molding. Among them, the degree of bending of the cooling wrap angle of the PP sheet can be adjusted by adjusting the spacing between the upper cooling roller and the middle cooling roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a three-roll calender of the utility model;

[0016] Figure 2 It is a front view of the three-roll calender of the utility model;

[0017] Figure 3 It is a right side view of the three-roll calender of the utility model;

[0018] Figure 4 It is a left side view of the three-roll calender of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the bending route of the PP sheet in the utility model.

[0020] Description of the accompanying drawings: 1, right rolled wall panel, 2, left rolled wall panel, 3, lower cooling roller, 4, middle cooling roller, 5, upper cooling roller, 6, cooling gap, 7, flow channel, 8, first sliding bearing seat, 9, second sliding bearing seat, 10, first hydraulic cylinder, 11, second hydraulic cylinder, 12, third sliding bearing seat, 13, fourth sliding bearing seat, 14, third hydraulic cylinder, 15, fourth hydraulic cylinder, 16, third seat body, 17, third slider plate, 18, third seat cover, 19, third adjustment assembly, 20, fourth seat body, 21, fourth slider plate, 22, fourth seat cover, 23, fourth adjustment assembly, 24, fourth connecting block, 25, fourth push rod, 26, fourth limit block, 27, The fourth nut, 28. The first screw lift, 29. The second screw lift, 30. The linkage shaft, 31. The first adjusting motor, 32. The first rotation drive mechanism, 33. The second rotation drive mechanism, 34. The third rotation drive mechanism, 35. The third drive servo motor, 36. The third reducer, 37. The third reducer mounting seat, 38. The third reducer shaft, 39. The third reducer sprocket, 40. The third sprocket, 41. The reducer mounting plate, 42. The first fixed bearing seat, 43. The second fixed bearing seat, 44. The first rotary joint, 45. The second rotary joint, 46. The temperature detection meter, 47. The arch support pipe, 48. The roller device, 49. The walking motor, 100. The PP sheet. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In order to make the content of the utility model more clearly understood, the utility model is further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0023] like Figure 1 As shown, a novel three-roll calender comprises a right calender wallboard 1, a left calender wallboard 2, a lower cooling roller 3, a middle cooling roller 4, an upper cooling roller 5, a front-rear adjustment mechanism, an upper-lower adjustment mechanism and a lifting drive mechanism; wherein,

[0024] A lower cooling roller 3, a middle cooling roller 4 and an upper cooling roller 5 are rotatably provided between the right calendering wallboard 1 and the left calendering wallboard 2. The middle cooling roller 4 and the lower cooling roller 3 are arranged horizontally side by side. A cooling gap 6 is provided between the lower cooling roller 3 and the middle cooling roller 4 for the PP sheet 100 to pass through.

[0025] The lower cooling roller 3 is rotatably arranged on a front-rear adjustment mechanism, the front-rear adjustment mechanism is connected to the right calendering wallboard 1 and the left calendering wallboard 2 and is used to drive the lower cooling roller 3 to move forward and backward to adjust the cooling gap 6, the upper cooling roller 5 is rotatably connected to the up-down adjustment mechanism, the upper cooling roller 5 is located above the middle cooling roller 4, and a flow channel 7 for the PP sheet 100 to pass through is provided between the upper cooling roller 5 and the middle cooling roller 4;

[0026] The up-down adjustment mechanism is connected to the right rolled wallboard 1 and the left rolled wallboard 2 and is used to drive the upper cooling roller 5 to move up and down to adjust the distance between the upper cooling roller 5 and the middle cooling roller 4;

[0027] In the cooling gap 6, the lower cooling roller 3 and the middle cooling roller 4 press the PP sheet 100 and cool the PP sheet 100 to shape it. After passing through the flow channel 7, the PP sheet 100 is wound around the upper cooling roller 5, and the upper cooling roller 5 can further cool the PP sheet 100. After adopting the above structure, the cooling effect of the PP sheet 100 is greatly increased, thereby preventing the PP sheet 100 from having an unsightly surface due to insufficient cooling effect, and improving the completeness and qualified rate of the cooling molding of the PP sheet 100. In this embodiment, the lower cooling roller 3, the middle cooling roller 4 and the upper cooling roller 5 all adopt the existing high-precision cooling roller structure; the bending degree of the glass PP sheet can be adjusted by adjusting the spacing between the upper cooling roller 5 and the middle cooling roller 4.

[0028] like Figure 1 As shown, the front-rear adjustment mechanism includes a first sliding bearing seat 8, a second sliding bearing seat 9, a first hydraulic cylinder 10, and a second hydraulic cylinder 11; wherein,

[0029] The first sliding bearing seat 8 and the second sliding bearing seat 9 are both slidably connected to the right rolled wall panel 1 and the left rolled wall panel 2 in the front-rear direction;

[0030] One end of the lower cooling roller 3 is rotatably connected to the first sliding bearing seat 8;

[0031] The other end of the lower cooling roller 3 is rotatably connected to the second sliding bearing seat 9;

[0032] The first hydraulic cylinder 10 is connected to the right rolled wall panel 1 and is connected to the first sliding bearing seat 8;

[0033] The second hydraulic cylinder 11 is connected to the left rolled wall panel 2 and connected to the second sliding bearing seat 9;

[0034] like Figure 1As shown, the up and down adjustment mechanism includes a third sliding bearing seat 12, a fourth sliding bearing seat 13 and a third hydraulic cylinder 14 and a fourth hydraulic cylinder 15; wherein,

[0035] The third sliding bearing seat 12 and the fourth sliding bearing seat 13 are both slidably connected to the right rolled wall panel 1 and the left rolled wall panel 2 in the up-down direction;

[0036] One end of the upper cooling roller 5 is rotatably connected to the third sliding bearing seat 12;

[0037] The other end of the upper cooling roller 5 is rotatably connected to the fourth sliding bearing seat 13; the third hydraulic cylinder 14 and the fourth hydraulic cylinder 15 are connected to the right rolled wall panel 1 and the left rolled wall panel 2, and the third hydraulic cylinder 14 and the fourth hydraulic cylinder 15 are respectively connected to the third sliding bearing seat 12 and the fourth sliding bearing seat 13 and are used to drive the third sliding bearing seat 12 and the fourth sliding bearing seat 13 to move up and down into place.

[0038] like Figure 1 , 3 As shown in , 4, the third sliding bearing seat 12 includes a third seat body 16, a third slider plate 17, a third seat cover 18 and a third adjustment assembly 19; the fourth sliding bearing seat 13 includes a fourth seat body 20, a fourth slider plate 21, a fourth seat cover 22 and a fourth adjustment assembly 23;

[0039] The third slider plate 17 and the fourth slider plate 21 are respectively connected to the right rolled wall plate 1 and the left rolled wall plate 2 in a sliding manner in the up-down direction;

[0040] The third seat cover 18 is slidably connected to the third seat body 16 along the front-rear direction;

[0041] The fourth seat cover 22 is slidably connected to the fourth seat body 20 along the front-to-back direction; one end of the upper cooling roller 5 is rotatably connected to the third seat body 16, and the other end of the upper cooling roller 5 is rotatably connected to the fourth seat body 20; the third adjustment component 19 is respectively connected to the third seat body 16 and the third slider plate 17 and the third seat cover 18 and is used to drive the third seat body 16 to move up and down on the right rolled wall panel 1; the fourth adjustment component 23 is respectively connected to the fourth seat body 20 and the fourth slider plate 21 and the fourth seat cover 22 and is used to drive the fourth seat body 20 The fourth slider plate 21 and the fourth seat cover 22 move up and down; the hydraulic drive mechanism is connected to the third seat body 16 and the fourth seat body 20 respectively and is used to drive the third seat body 16 and the fourth seat body 20 to move up and down into position; specifically, the upper and lower positions of the third sliding bearing seat 12 and the upper and lower positions of the fourth sliding bearing seat 13 can be adjusted up and down, so that the upper cooling roller 5 and the middle cooling roller 4 form a flow channel 7, ensuring that the PP sheet 100 passes through the cooling gap 6 and is formed with the same thickness at both ends and the middle thickness, ensuring that there is no difference in the overall thickness of the PP sheet 100. The design of the adjustable mechanism can provide sufficient cooling effect for the production of sheets of different thicknesses, so it can play a compensatory role when the rollers are working.

[0042] like Figure 4 As shown, the third adjustment assembly 19 includes a third connecting block, a third push rod, a third limit block and a third nut corresponding to the third push rod; wherein,

[0043] The third push rod is threadedly connected to the third connecting block;

[0044] The third connecting block is threadedly connected to the third seat body 16;

[0045] The third nut is threadedly connected to the third push rod;

[0046] The fourth adjustment assembly 23 includes a fourth connecting block 24, a fourth push rod 25, a fourth limit block 26 and a fourth nut 27 corresponding to the fourth push rod; wherein,

[0047] The fourth push rod 25 is threadedly connected to the fourth connecting block 24;

[0048] The fourth connecting block 24 is threadedly connected to the fourth seat body 20; the fourth nut 27 is threadedly connected to the fourth push rod 25;

[0049] In this embodiment, when it is necessary to adjust the fourth seat body 20 upward for producing sheets of different thicknesses, first loosen the fourth nut 27, and then rotate the fourth push rod 25 to slide the fourth seat body 20 upward, thereby increasing the flow channel 7 of the upper cooling roller 5 and the middle cooling roller 4, so that the PP sheet 100 can be cooled and formed better and the output is higher.

[0050] like Figure 1 As shown, the left rolled wall panel 2 and the right rolled wall panel 1 are equipped with two sets of lifting drive mechanisms arranged front and back, and the lifting drive mechanisms include a first screw lift 28, a second screw lift 29, a linkage shaft 30 and a first adjustment motor 31; wherein,

[0051] The first screw lift 28 is connected to the right rolled wall panel 1; the second screw lift 29 is connected to the left rolled wall panel 2;

[0052] One end of the linkage shaft 30 is connected to the input shaft of the first screw lift 28, and the other end of the linkage shaft 30 is connected to the input shaft of the second screw lift 29;

[0053] The first adjusting motor 31 is connected to the input shaft of the first screw lift 28 and is used to drive the input shaft of the first screw lift 28 to rotate and then drive the input shaft of the second screw lift 29 to rotate through the linkage shaft 30 .

[0054] Specifically, the novel three-roll calender may further include:

[0055] A first rotation driving mechanism 32 connected to the lower cooling roller 3 and used for driving the lower cooling roller 3 to rotate;

[0056] A second rotation driving mechanism 33 connected to the middle cooling roller 4 and used for driving the middle cooling roller 4 to rotate;

[0057] A third rotation driving mechanism 34 connected to the upper cooling roller 5 and used for driving the upper cooling roller 5 to rotate.

[0058] like Figure 1 , 2 As shown, the first rotary drive mechanism 32 includes a first driving servo motor, a first reduction box, a first reduction box mounting seat, a first reduction machine shaft, a first reduction machine sprocket and a first sprocket; wherein,

[0059] The first driving servo motor is connected to the input end of the first reduction box;

[0060] The first reduction gearbox is mounted and fixed on the first reduction gearbox mounting seat;

[0061] The first reducer shaft is sleeved into the output end of the first reduction box; the first reducer sprocket is sleeved on the first reducer shaft;

[0062] The first sprocket is sleeved on the lower cooling roller 3;

[0063] The first reduction gearbox mounting seat is fixed on the left rolling wallboard 2; the output end of the first reduction gearbox and the lower cooling roller 3 are driven by a chain;

[0064] The second rotation drive mechanism 33 includes a second driving servo motor, a second reduction box, a second reduction box mounting seat, a second reduction machine shaft, a second reduction machine sprocket and a second sprocket; wherein the second driving servo motor is connected to the input end of the second reduction box;

[0065] The second reduction gearbox is mounted and fixed on the second reduction gearbox mounting seat;

[0066] The second reducer shaft is sleeved into the output end of the second reduction box; the second reducer sprocket is sleeved on the second reducer shaft;

[0067] The second sprocket is sleeved on the middle cooling roller 4; the second reduction box mounting seat is fixed on the left rolling wallboard 2;

[0068] The third rotary drive mechanism 34 includes a third driving servo motor 35, a third reduction box 36, a third reduction box mounting seat 37, a third reduction machine shaft 38, a third reduction machine sprocket 39, a third sprocket 40 and a reduction machine mounting plate 41; wherein,

[0069] The third driving servo motor 35 is connected to the input end of the third reduction box 36;

[0070] The third reduction box 36 is mounted and fixed on the third reduction box mounting seat 37;

[0071] The third reducer shaft 38 is inserted into the output end of the third reduction box 36;

[0072] The third reducer sprocket 39 is sleeved on the third reducer shaft 38;

[0073] The third sprocket is sleeved on the upper cooling roller 5; the third reduction gearbox mounting seat 37 is fixed on the reduction gearbox mounting plate 41;

[0074] The reducer mounting plate 41 is fixed on the fourth sliding bearing seat 13;

[0075] like Figure 1 As shown, the right rolled wall panel 1, the left rolled wall panel 2, the first fixed bearing seat 42, the second fixed bearing seat 43, the first rotary joint 44, the second rotary joint 45 and the temperature detection meter 46; wherein,

[0076] The first fixed bearing seat 42 is connected to the right rolled wall panel 1;

[0077] The second fixed bearing seat 43 is connected to the left rolled wall panel 2;

[0078] One end of the middle cooling roller 4 is rotatably connected to the first fixed bearing seat 42;

[0079] The other end of the middle cooling roller 4 is rotatably connected to the second fixed bearing seat 43; one end of the first rotary joint 44 is rotatably connected to one end of the middle cooling roller 4; one end of the second rotary joint 45 is rotatably connected to the other end of the middle cooling roller 4;

[0080] The temperature detection gauge 46 is threadedly connected to the other end of the second rotary joint 45 .

[0081] In this embodiment, the external water source enters from the first rotary joint 44, passes through the middle cooling roller 4 and then flows into the second rotary joint 45. The temperature detection meter 46 is used to detect the temperature of the return water end of the second rotary joint 45. Through such an inlet and outlet water channel method, the PP sheet 100 can be better cooled, thereby increasing the output.

[0082] like Figure 1 , 2 As shown, the right rolled wall panel 1 and the left rolled wall panel 2 are connected via a plurality of arch support pipes 47;

[0083] The bottom of the right rolled wall panel 1 and the bottom of the left rolled wall panel 2 are respectively connected to two roller devices 48;

[0084] A travel motor 49 is connected to one of the roller devices 48, and the travel motor 49 is connected to the roller device 48 and is used to drive the roller device 48 to rotate, thereby driving the entire three-roll calender to move forward and backward; wherein, the specific structure of the roller device 48 is the prior art well known to those skilled in the art and will not be described in detail herein.

[0085] In summary, the PP sheet 100 passes through the cooling gap 6 and the flow channel 7 in sequence. In the cooling gap 6, the lower cooling roller 3 and the middle cooling roller 4 press the PP sheet 100 and cool the PP sheet 100 to shape it. After passing through the flow channel 7, the PP sheet 100 is wound around the upper cooling roller 5, and the upper cooling roller 5 can further cool the PP sheet 100. After adopting the above structure, the cooling effect of the PP sheet 100 is greatly increased, thereby preventing the PP sheet from being unsightly due to insufficient cooling during the production process, and improving the completeness and qualified rate of the PP sheet cooling molding. Among them, the degree of bending of the cooling wrap angle of the PP sheet can be adjusted by adjusting the spacing between the upper cooling roller and the middle cooling roller.

[0086] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel three-roll calender, comprising a right calender wallboard and a left calender wallboard, characterized in that: A lower cooling roller, a middle cooling roller and an upper cooling roller are rotatably provided between the right calendering wall panel and the left calendering wall panel, the middle cooling roller and the lower cooling roller are arranged horizontally side by side, a cooling gap is provided between the lower cooling roller and the middle cooling roller for the PP sheet to pass through, the lower cooling roller is rotatably provided on a front-rear adjustment mechanism, the front-rear adjustment mechanism is connected to the right calendering wall panel and the left calendering wall panel, and is used to drive the lower cooling roller to move forward and backward into position to adjust the cooling gap, the upper cooling roller is located above the middle cooling roller, a flow channel is provided between the upper cooling roller and the middle cooling roller for the PP sheet to pass through, the upper cooling roller is rotatably connected to the upper-lower adjustment mechanism, the upper-lower adjustment mechanism is connected to the right calendering wall panel and the left calendering wall panel, and is used to drive the upper cooling roller to move up and down into position to adjust the flow channel spacing between the upper cooling roller and the middle cooling roller.

2. A novel three-roll calender according to claim 1, characterized in that: The front-to-back adjustment mechanism includes a first sliding bearing seat, a second sliding bearing seat, a first hydraulic cylinder, and a second hydraulic cylinder; the first sliding bearing seat and the second sliding bearing seat are respectively slidably connected to the right rolling wall panel and the left rolling wall panel along the front-to-back direction, one end of the lower cooling roller is rotatably connected to the first sliding bearing seat, and the other end of the lower cooling roller is rotatably connected to the second sliding bearing seat; the first hydraulic cylinder is connected to the right rolling wall panel and is transmission-connected to the first sliding bearing seat, and the second hydraulic cylinder is connected to the left rolling wall panel and is connected to the second sliding bearing seat.

3. A novel three-roll calender according to claim 1, characterized in that: The up and down adjustment mechanism includes a third sliding bearing seat, a fourth sliding bearing seat and a third hydraulic cylinder and a fourth hydraulic cylinder; the third sliding bearing seat and the fourth sliding bearing seat are respectively connected to the right rolled wall panel and the left rolled wall panel for sliding along the up and down directions; one end of the upper cooling roller can be rotatably connected to the third sliding bearing seat, and the other end of the upper cooling roller can be rotatably connected to the fourth sliding bearing seat; the third hydraulic cylinder and the fourth hydraulic cylinder are respectively connected to the right rolled wall panel and the left rolled wall panel, and the third hydraulic cylinder and the fourth hydraulic cylinder are respectively connected to the third sliding bearing seat and the fourth sliding bearing seat, and are used to drive the third sliding bearing seat and the fourth sliding bearing seat to move up and down into place.

4. A novel three-roll calender according to claim 3, characterized in that: The third sliding bearing seat includes a third seat body, a third slider plate, a third seat cover and a third adjustment component; the fourth sliding bearing seat includes a fourth seat body, a fourth slider plate, a fourth seat cover and a fourth adjustment component; the third slider plate and the fourth slider plate are respectively connected to the right rolling wall plate and the left rolling wall plate in a sliding manner in the up-down direction; the third seat cover is connected to the third seat body in a sliding manner in the front-back direction; the fourth seat cover is connected to the fourth seat body in a sliding manner in the front-back direction; one end of the upper cooling roller is rotatably connected to the third seat body, and the other end of the upper cooling roller is rotatably connected to the fourth seat body; the third adjustment component is respectively connected to the third seat body, the third slider plate and the third seat cover, and is used to drive the third seat body, the third slider plate and the third seat cover to move up and down on the rolling wall plate; the fourth adjustment component is respectively connected to the fourth seat body, the fourth slider plate and the fourth seat cover, and is used to drive the fourth seat body, the fourth slider plate and the fourth seat cover to move up and down; the third hydraulic cylinder and the fourth hydraulic cylinder are respectively connected to the third seat body and the fourth seat body, and are used to drive the third seat body and the fourth seat body to move up and down into place.

5. A novel three-roll calender according to claim 4, characterized in that: The third adjustment assembly includes a third connecting block, a third push rod, a third limit block and a third nut corresponding to the third push rod; the third push rod and the third connecting block are threadedly connected, and the third connecting block is threadedly connected to the third seat body; the third nut is threadedly connected to the third push rod, and the fourth adjustment assembly includes a fourth connecting block, a fourth push rod, a fourth limit block and a fourth nut corresponding to the fourth push rod; the fourth push rod and the fourth connecting block are threadedly connected; the fourth connecting block is threadedly connected to the fourth seat body; the fourth nut is threadedly connected to the fourth push rod.

6. A novel three-roll calender according to claim 1, characterized in that: The left rolled wall panel and the right rolled wall panel are equipped with two sets of lifting drive mechanisms arranged front and back, and the lifting drive mechanisms include a first screw lift, a second screw lift, a linkage shaft and a first adjusting motor; the first screw lift is connected to the right rolled wall panel, and the second screw lift is connected to the left rolled wall panel, one end of the linkage shaft is connected to the input shaft of the first screw lift, and the other end of the linkage shaft is connected to the input shaft of the second screw lift; the first adjusting motor is connected to the input shaft of the first screw lift, and is used to drive the input shaft of the first screw lift to rotate and then drive the input shaft of the second screw lift to rotate through the linkage shaft.

7. A novel three-roll calender according to claim 1, characterized in that: Also includes: A first rotation drive mechanism connected to the lower cooling roller and used to drive the lower cooling roller to rotate; A second rotation drive mechanism connected to the middle cooling roller and used to drive the middle cooling roller to rotate; A third rotation drive mechanism is connected to the upper cooling roller and is used to drive the upper cooling roller to rotate.

8. A novel three-roll calender according to claim 7, characterized in that: The first rotary drive mechanism includes a first driving servo motor, a first reduction box, a first reduction box mounting seat, a first reduction machine shaft, a first reduction machine sprocket and a first sprocket; the first driving servo motor is connected to the input end of the first reduction box; the first reduction box is mounted and fixed on the first reduction box mounting seat; The first reducer shaft is sleeved into the output end of the first reduction box; the first reducer sprocket is sleeved on the first reducer shaft; the first sprocket is sleeved on the lower cooling roller; the first reduction box mounting seat is fixed on the left rolling wall panel; the output end of the first reduction box and the lower cooling roller are driven by a chain; the second rotation drive mechanism includes a second drive servo motor, a second reduction box, a second reduction box mounting seat, a second reducer shaft, a second reducer sprocket and a second sprocket; the second drive servo motor is connected to the input end of the second reduction box; the second reduction box is installed and fixed on the second reduction box mounting seat; the second reducer shaft is sleeved into the output end of the second reduction box; the second reducer sprocket is sleeved on the second reducer shaft ; The second sprocket is sleeved on the middle cooling roller; the second reduction gearbox mounting seat is fixed on the left rolling wall panel; the third rotation drive mechanism includes a third driving servo motor, a third reduction gearbox, a third reduction gearbox mounting seat, a third reducer shaft, a third reducer sprocket, a third sprocket and a reducer mounting plate; the third driving servo motor is connected to the input end of the third reduction gearbox; the third reduction gearbox is installed and fixed on the third reduction gearbox mounting seat; the third reducer shaft is sleeved into the output end of the third reduction gearbox; the third reducer sprocket is sleeved on the third reducer shaft; the third sprocket is sleeved on the upper cooling roller; the third reduction gearbox mounting seat is fixed on the reducer mounting plate; the reducer mounting plate is fixed on the fourth sliding bearing seat.

9. A novel three-roll calender according to claim 1, characterized in that: It also includes a first fixed bearing seat, a second fixed bearing seat, a first rotary joint, a second rotary joint and a temperature detection gauge; the first fixed bearing seat is connected to the right rolling wall panel; the second fixed bearing seat is connected to the left rolling wall panel; one end of the middle cooling roller can be rotatably connected to the first fixed bearing seat, and the other end of the middle cooling roller can be rotatably connected to the second fixed bearing seat; one end of the first rotary joint can be rotatably connected to one end of the middle cooling roller, and one end of the second rotary joint can be rotatably connected to the other end of the middle cooling roller; the temperature detection gauge is threadedly connected to the other end of the second rotary joint.

10. A novel three-roll calender according to claim 9, characterized in that: The right rolled wall panel and the left rolled wall panel are connected via a plurality of arch support tubes; two roller devices are respectively connected to the bottom of the right rolled wall panel and the left rolled wall panel; a travel motor is connected to one set of the roller devices, and the travel motor is connected to the roller device and is used to drive the roller device to rotate.

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