Calender for PVC sheet production

Abstract

The utility model relates to the technical field of PVC (polyvinyl chloride) sheet production, and discloses a calender for PVC sheet production, which comprises a support frame, a calendering mechanism arranged at the top of the support frame, a top plate fixedly connected to the top of the support frame, an adjusting mechanism arranged at the bottom of the top plate, and a trimming mechanism arranged at the top of the support frame, a collecting mechanism is arranged at the bottom of the supporting frame, and a cooling mechanism is arranged at the top of the top plate. And the trimming mechanism comprises a second motor, the second motor is fixedly connected to the top of the supporting frame, and the output end of the second motor is fixedly connected with a rotating rod. According to the edge trimming device, the second motor is started to enable the rotating rod to drive the connecting rod to rotate, the movable sliding block drives the edge trimming cutters to move, and then the two edge trimming cutters can be adjusted so as to be suitable for cutting off uneven areas on the two sides caused in the rolling process of sheets of different sizes, so that the complexity of subsequent processing links can be reduced, and the production efficiency is improved. And the production efficiency of the sheet is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PVC sheet production, in particular to a calender for PVC sheet production. Background Art

[0002] PVC sheet is a plastic sheet made from polyvinyl chloride (PVC) material. It is widely used in many fields such as construction, packaging, advertising, and automotive interiors. A calendering mechanism is required to process PVC material into plastic sheet. The PVC raw material is heated and extruded to form the required sheet thickness and shape, thus ensuring the uniformity and stability of the material.

[0003] Existing calendering mechanisms typically use multiple rollers to calender PVC material, thereby producing thin plastic sheets. However, these calendering mechanisms can create unevenness on both sides of the PVC material during calendering, reducing product quality. This requires manual cutting using separate processing tools, increasing the number of manual steps and reducing production efficiency. To address these issues, those skilled in the art have proposed a calender for PVC sheet production. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a calender for PVC sheet production, which aims to improve the problem that the existing calendering mechanism will cause unevenness on both sides when calendering PVC materials, requiring manual cutting with other processing tools, resulting in reduced product production efficiency.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a calender for PVC sheet production, comprising a support frame, a calendering mechanism is provided on the top of the support frame, a top plate is fixedly connected to the top of the support frame, an adjustment mechanism is provided at the bottom of the top plate, a trimming mechanism is provided at the top of the support frame, a collecting mechanism is provided at the bottom of the support frame, and a cooling mechanism is provided at the top of the top plate; the trimming mechanism comprises a second motor, the second motor is fixedly connected to the top of the support frame, the output end of the second motor is fixedly connected to a rotating rod, both ends of the rotating rod are rotatably connected to a connecting rod, two limit rods are fixedly connected to both sides of the top of the support frame, the outside of the limit rod is slidably connected to a movable slider, and the outside of the movable slider is fixedly connected to a trimming tool.

[0006] Furthermore, the cooling mechanism includes a cooler, which is fixedly connected to the top of the top plate, an output end of the cooler is fixedly connected to a cooling pipe, and a plurality of nozzles are fixedly connected to the outside of the cooling pipe.

[0007] Furthermore, the calendering mechanism includes two upper heating rollers and a first motor, the output end of the first motor is fixedly connected to a conveying roller, two limit plates are fixedly connected to the top two sides of the support frame, the inner walls of the limit plates are rotatably connected to two lower heating rollers, one end of the lower heating roller on one side is connected to the conveying roller through a first pulley, and the two lower heating rollers are connected through a second pulley.

[0008] Furthermore, the adjustment mechanism includes a cylinder, the top of the cylinder is fixedly connected to the bottom of the top plate, the output end of the cylinder is fixedly connected to a connecting block, the bottom of the top plate is fixedly connected to two telescopic rods, and the bottom of the telescopic rods is fixedly connected to the top of the connecting block.

[0009] Furthermore, the collecting mechanism includes a collecting trough, which is opened through the top of the supporting frame, and a collecting box is provided at the bottom of the supporting frame.

[0010] Furthermore, both ends of the two upper heating rollers are rotatably connected to both sides of the connecting block, and the upper heating rollers are located directly above the lower heating roller.

[0011] Furthermore, the trimming mechanism is located between the conveying roller and the lower heating roller, and one end of the connecting rod is rotatably connected to the top of the movable slider.

[0012] Furthermore, feed ports are fixedly connected to both sides of the top of the support frame, and the discharge end of the feed port is located between the upper heating roller and the lower heating roller.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the present invention, by starting the second motor to make the rotating rod drive the connecting rod to rotate, the movable slider drives the trimming tool to move synchronously, and the two trimming tools can be adjusted to be suitable for cutting off the uneven areas on both sides of sheets of different sizes, thereby reducing the complexity of subsequent processing links and improving the production efficiency of the sheets.

[0015] 2. In the present invention, the cooler is started to extract and cool the external gas, and then the cooled gas is allowed to enter the cooling pipe at the output end of the cooler and is ejected through the nozzle, thereby cooling the transported PVC sheet, thereby quickly improving the stability and surface smoothness of the sheet, so that subsequent processing steps can be carried out quickly, thereby improving overall production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional diagram of a calender for producing PVC sheets proposed in the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the first pulley of a calender for producing PVC sheets proposed in the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of the second pulley of a calender for PVC sheet production proposed in the utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A.

[0020] Legend:

[0021] 1. Support frame; 2. Top plate; 3. Adjustment mechanism; 301. Cylinder; 302. Telescopic rod; 303. Connecting block; 4. Calendering mechanism; 401. First motor; 402. First pulley; 403. Conveying roller; 404. Upper heating roller; 405. Lower heating roller; 406. Limiting plate; 407. Second pulley; 5. Trimming mechanism; 501. Second motor; 502. Rotating rod; 503. Connecting rod; 504. Moving slider; 505. Limiting rod; 506. Trimming tool; 6. Collecting mechanism; 601. Collecting trough; 602. Collecting box; 7. Cooling mechanism; 701. Cooler; 702. Cooling pipe; 703. Nozzle; 8. Feed inlet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] Reference Figure 1 、 Figure 3 and Figure 4The utility model provides an embodiment: a calender for producing PVC sheets, comprising a support frame 1, a calendering mechanism 4 is provided on the top of the support frame 1, wherein the calendering mechanism 4 is used to calender the PVC raw material into sheets, a top plate 2 is fixedly connected to the top of the support frame 1, an adjusting mechanism 3 is provided at the bottom of the top plate 2, wherein the adjusting mechanism 3 is used to adjust the thickness required for extrusion of different sheets, a trimming mechanism 5 is provided on the top of the support frame 1, a collecting mechanism 6 is provided at the bottom of the support frame 1, wherein the collecting mechanism 6 is used to collect the cut waste, a cooling mechanism 7 is provided on the top of the top plate 2, and the cooling mechanism 7 is used to cool the calendered sheet; the trimming mechanism 5 includes a second motor 501, which is fixedly connected to the top of the support frame 1, and is connected to the support frame 1 through the support frame 1. The second motor 501 is fixed, and the output end of the second motor 501 is fixedly connected to the rotating rod 502, and both ends of the rotating rod 502 are rotatably connected to the connecting rod 503. Through the mutual cooperation between the rotating rod 502 and the connecting rod 503, the movable slider 504 can be driven to move. Two limit rods 505 are fixedly connected to the top two sides of the support frame 1, wherein the limit rods 505 limit the movable slider 504, so that the movable slider 504 can move along the outside of the limit rod 505, and the outside of the limit rod 505 is slidably connected to the movable slider 504, and the outside of the movable slider 504 is fixedly connected to the trimming tool 506, which fixes the trimming tool 506 through the movable slider 504, thereby synchronously driving the trimming tool 506 to move. The collection mechanism 6 includes a collection trough 601 extending through the top of the support frame 1. Through the action of the collection trough 601, the excised waste material falls into a collection box 602, thereby collecting the waste material. The collection box 602 is provided at the bottom of the support frame 1. The trimming mechanism 5 is located between the conveyor roller 403 and the lower heating roller 405. As the sheet moves, one end of the connecting rod 503 is rotatably connected to the top of the movable slider 504.

[0024] Reference Figure 1 and Figure 2 The cooling mechanism 7 includes a cooler 701, which is fixedly connected to the top of the top plate 2. The top plate 2 fixes the cooler 701 so that the cooler 701 can operate stably. The output end of the cooler 701 is fixedly connected to a cooling pipe 702. The cooling gas can be transported through the cooling pipe 702. The outside of the cooling pipe 702 is fixedly connected to a plurality of nozzles 703. The gas is sprayed out through the nozzles 703, thereby cooling the sheet.

[0025] Reference Figure 1 、 Figure 2 and Figure 3The calendering mechanism 4 includes two upper heating rollers 404 and a first motor 401. The output end of the first motor 401 is fixedly connected to the conveying roller 403. The first motor 401 is used as a driving source to drive the conveying roller 403 to rotate. Two limit plates 406 are fixedly connected to the top and bottom of the support frame 1. The inner wall of the limit plate 406 is rotatably connected to the two lower heating rollers 405. The limit plates 406 limit the lower heating rollers 405 and the conveying rollers 403. In this way, the lower heating rollers 405 and the conveying rollers 403 can rotate stably. One end of the lower heating roller 405 on one side is connected to the conveying roller 403 through the first pulley 402, and the two lower heating rollers 405 are connected through the second pulley 407. Through the action of the first pulley 402 and the second pulley 407, the conveying roller 403 is driven to rotate by the first motor 401, and the two lower heating rollers 405 can be rotated synchronously. The adjustment mechanism 3 includes a cylinder 301, the top of which is fixedly connected to the bottom of the top plate 2. The output end of the cylinder 301 is fixedly connected to a connecting block 303. The cylinder 301 allows for convenient height adjustment of the connecting block 303. Two telescopic rods 302 are fixedly connected to the bottom of the top plate 2. The bottoms of the telescopic rods 302 are fixedly connected to the top of the connecting block 303. The telescopic rods 302 limit the connecting block 303, allowing for stable adjustment. Two upper heating rollers 404 are pivotally connected to either side of the connecting block 303. The upper heating rollers 404 are positioned directly above the lower heating roller 405. This interaction allows for convenient calendaring of the PVC material. A feed port 8 is fixedly connected to both sides of the top of the support frame 1, with the discharge end of the feed port 8 positioned between the upper and lower heating rollers 404, 405.

[0026] Working principle: When using this device, a mixture of PVC resin and other additives is placed inside the feed port 8. In this way, the thickness required for calendering can be adjusted by starting the cylinder 301, and with the cooperation of the telescopic rod 302, it is made more stable during the calendering or lifting process. In this way, the first motor 401 is started to drive the conveying roller 403 to rotate, so that the lower heating roller 405 can be driven to rotate synchronously with the cooperation of the first motor 401. Therefore, under the action of the second pulley 407, the two lower heating rollers 405 can be rotated synchronously on the inner walls of the two limit plates 406, thereby realizing the calendering of the PVC mixed material into PVC sheets;

[0027] The PVC sheet is driven to move during the calendering process, so the second motor 501 is started to drive the rotating rod 502 to rotate, so that the two ends of the rotating rod 502 drive one end of the connecting rod 503 to rotate. In this way, under the action of the traction force on one end of the connecting rod 503, the other end of the connecting rod 503 can drive the moving slider 504 to move along the outside of the two limit rods 505, so as to drive the trimming tool 506 to move synchronously, so as to facilitate the adjustment of the two trimming tools 506, thereby facilitating the removal of unqualified areas on both sides during the calendering process, and limiting the moving direction of the scrap by a side baffle so that it passes through the collecting trough 601 and falls into the collecting box 602, thereby realizing the removal of the irregular sides of the PVC sheet and the collection and treatment of the waste;

[0028] When the calendered PVC sheet moves on top of the conveying roller 403, the cooler 701 can be started to extract gas through the input end for cooling, and then the cooled gas is transported into the cooling pipe 702 through the output end. Under the action of the nozzle 703, the cooling gas is ejected, thereby cooling the conveyed PVC sheet, thereby quickly improving the stability and surface smoothness of the sheet.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A calender for producing PVC sheets, comprising a support frame (1), characterized in that: A calendering mechanism (4) is provided on the top of the support frame (1), a top plate (2) is fixedly connected to the top of the support frame (1), an adjusting mechanism (3) is provided on the bottom of the top plate (2), a trimming mechanism (5) is provided on the top of the support frame (1), a collecting mechanism (6) is provided on the bottom of the support frame (1), and a cooling mechanism (7) is provided on the top of the top plate (2); The trimming mechanism (5) comprises a second motor (501), the second motor (501) is fixedly connected to the top of the support frame (1), the output end of the second motor (501) is fixedly connected to a rotating rod (502), both ends of the rotating rod (502) are rotatably connected to connecting rods (503), two limiting rods (505) are fixedly connected to both sides of the top of the support frame (1), the outer portion of the limiting rod (505) is slidably connected to a moving slider (504), the outer portion of the moving slider (504) is fixedly connected to a trimming tool (506), and one end of the connecting rod (503) is rotatably connected to the top of the moving slider (504).

2. A calender for producing PVC sheets according to claim 1, characterized in that: The cooling mechanism (7) comprises a cooler (701), the cooler (701) being fixedly connected to the top of the top plate (2), the output end of the cooler (701) being fixedly connected to a cooling pipe (702), and the outside of the cooling pipe (702) being fixedly connected to a plurality of nozzles (703).

3. A calender for producing PVC sheets according to claim 1, characterized in that: The calendering mechanism (4) comprises two upper heating rollers (404) and a first motor (401), the output end of the first motor (401) is fixedly connected to a conveying roller (403), two limiting plates (406) are fixedly connected to both sides of the top of the support frame (1), the inner wall of the limiting plate (406) is rotatably connected to two lower heating rollers (405), one end of the lower heating roller (405) is connected to the conveying roller (403) via a first pulley (402), and the two lower heating rollers (405) are connected via a second pulley (407).

4. A calender for producing PVC sheets according to claim 1, characterized in that: The regulating mechanism (3) comprises a cylinder (301), the top of the cylinder (301) is fixedly connected to the bottom of the top plate (2), the output end of the cylinder (301) is fixedly connected to a connecting block (303), the bottom of the top plate (2) is fixedly connected to two telescopic rods (302), and the bottoms of the telescopic rods (302) are fixedly connected to the top of the connecting block (303).

5. A calender for producing PVC sheets according to claim 1, characterized in that: The collecting mechanism (6) comprises a collecting trough (601), the collecting trough (601) is opened through the top of the supporting frame (1), and a collecting box (602) is provided at the bottom of the supporting frame (1).

6. A calender for producing PVC sheets according to claim 3, characterized in that: The two ends of the two upper heating rollers (404) are rotatably connected to the two sides of the connecting block (303), and the upper heating rollers (404) are located directly above the lower heating roller (405).

7. A calender for producing PVC sheets according to claim 1, characterized in that: The trimming mechanism (5) is located between the conveying roller (403) and the lower heating roller (405).

8. A calender for producing PVC sheets according to claim 1, characterized in that: Feed ports (8) are fixedly connected to both sides of the top of the support frame (1), and the discharge end of the feed port (8) is located between the upper heating roller (404) and the lower heating roller (405).

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