PVC coiled material winding device and production process thereof

Abstract

The present application belongs to the technical field of plate winding, in particular to a device for controlling contact pressure during plate winding, and more particularly to a PVC coiled material winding device and a production process thereof. The PVC coiled material winding device comprises a support body, a conveying roller arranged on the support body, a winding roller arranged on the support body, a pressure roller mechanism for pressing the PVC plate wound by the winding roller, an infrared detection module for detecting the lifting distance of the winding roller, and a control module for adjusting the height of the pressure roller mechanism according to the received lifting distance to adjust the friction force on the PVC plate wound by the winding roller. The lifting distance of the winding roller is detected, and the height of the pressure roller mechanism is adjusted according to the lifting distance to adjust the friction force on the PVC plate wound by the winding roller, so that the friction force between the pressure roller mechanism and the PVC plate is kept within a preset range, avoiding excessive local temperature of the PVC plate caused by the friction force, thereby not affecting the quality of the PVC plate.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of plate winding, and particularly relates to a device for controlling contact pressure during plate winding, and more particularly to a PVC coiled material winding device and a production process thereof. BACKGROUND

[0002] PVC coiled material is one of commonly used materials for floor, and is often in the form of coiled material during production.

[0003] In the related art, since the PVC coiled material used as floor is relatively hard, only the tension of the PVC plate is adjusted during winding, and the PVC coiled material is not tightly wound. Therefore, a pressure roller is provided to press the PVC coiled material after winding, so as to ensure that the PVC coiled material is tightly wound. It is found during use that, as the thickness of the PVC plate increases during winding, the local temperature of the PVC coiled material is overheated, which affects the performance of the PVC coiled material (such as melting of the coating), and the winding speed needs to be reduced to avoid overheating of the local temperature of the PVC coiled material, but reducing the winding speed will reduce the winding efficiency of the PVC coiled material.

[0004] Therefore, how to ensure the winding efficiency of the PVC coiled material while avoiding overheating of the local temperature of the PVC coiled material is a technical problem to be solved at present.

[0005] It should be noted that the above information disclosed in the background section is only used to understand the background of the present application, and therefore, the above description is not considered to constitute prior art information. SUMMARY

[0006] The present application provides at least a PVC coiled material winding device and a production process thereof.

[0007] In a first aspect, the present application provides a PVC coiled material winding device, comprising:

[0008] a support body;

[0009] a conveying roller arranged on the support body;

[0010] a winding roller arranged on the support body;

[0011] a pressure roller mechanism arranged above the winding roller and used for pressing the PVC plate wound by the winding roller;

[0012] an infrared detection module arranged on the support body and used for detecting the lifting distance of the winding roller;

[0013] a control module configured to adjust the height of the pressure roller mechanism according to the received lifting distance, so as to adjust the friction force of the PVC plate wound by the winding roller.

[0014] In an alternative embodiment, the pressure roller mechanism comprises:

[0015] two adjusting cylinders fixedly arranged on both sides of the support body and above the winding roller;

[0016] a pressure rod, both ends of which are elastically connected to the piston rods of the adjusting cylinders through elastic members;

[0017] a plurality of pressure wheels sleeved on the pressure rod and abutting against the outer wall of the PVC plate wound by the winding roller;

[0018] the control module adjusts the height of the pressure roller mechanism according to the received rising distance, i.e., adjusts the extension distance of the piston rods of the adjusting cylinders according to the received rising distance.

[0019] In an alternative embodiment, the rising distance of the winding roller is L, and the extension distance of the piston rods of the adjusting cylinders is H; wherein H = aL.

[0020] In the formula, a is a distance adjustment coefficient, the value of which is 1.5-1.95, and the units of H and L are cm.

[0021] In an alternative embodiment, the pressure roller mechanism further comprises:

[0022] a back plate vertically arranged on the support body and spaced apart to define a plurality of sliding grooves;

[0023] the pressure wheels are sleeved on the pressure rod through sliding pipes;

[0024] the side wall of the sliding pipe is provided with a sliding rod inserted into the sliding groove;

[0025] the pressure wheels rise with the increase of the thickness of the PVC plate wound by the winding roller, thereby driving the sliding rod to slide along the sliding groove, and further adjusting the abutting position of the pressure wheels and the PVC plate wound by the winding roller.

[0026] In an alternative embodiment, the sliding grooves are obliquely arranged on the back plate to drive the sliding pipes to slide along the axial direction of the pressure rod when the pressure wheels rise, thereby adjusting the abutting position of the pressure wheels and the PVC plate wound by the winding roller.

[0027] In an alternative embodiment, the sliding grooves comprise a plurality of vertical segments spaced apart from bottom to top, and oblique segments connecting adjacent vertical segments;

[0028] wherein the oblique directions of the oblique segments in each sliding groove are consistent.

[0029] In an alternative embodiment, the sliding grooves at both ends are inclined from bottom to top and outward.

[0030] The pressing wheels are lifted with the increase of the thickness of the PVC plate rolled by the rolling roller, so as to drive the sliding rod to slide along the sliding groove, so that the two pressing wheels corresponding to the sliding grooves at both ends slide outward along the axial direction of the pressing rod.

[0031] In an alternative embodiment, the elastic member comprises:

[0032] A lifting plate is arranged on the piston rod of the adjusting cylinder;

[0033] A sleeve is fixedly arranged on the lifting plate;

[0034] A telescopic rod is arranged at one end of the rolling roller and is elastically connected to the sleeve through a return spring, and the other end of the telescopic rod passes through the sleeve;

[0035] The telescopic rod is further provided with a through hole for the pressing rod to pass through;

[0036] The pressing rod is fixedly connected to the telescopic rod after passing through the through hole.

[0037] In a second aspect, the embodiments of the present disclosure further provide a production process applied to the PVC coiled material rolling device as described above, and the process comprises:

[0038] The rolling end of the PVC plate to be rolled is fixed on the rolling cylinder;

[0039] The rolling cylinder is sleeved on the rolling roller, and the rolling roller is inserted into the support body;

[0040] The rotating of the conveying roller is controlled to drive the rolling cylinder to rotate, so as to roll the PVC plate;

[0041] During the rolling, the lifting distance of the rolling roller is detected, and the height of the pressing roller mechanism is adjusted according to the received lifting distance, so as to adjust the friction force received by the PVC plate rolled by the rolling roller.

[0042] In an alternative embodiment, the pressing roller mechanism comprises:

[0043] Two adjusting cylinders are fixedly arranged on both sides of the support body and above the rolling roller;

[0044] The pressing rod is elastically connected to the piston rod of the adjusting cylinder through an elastic member;

[0045] The plurality of pressing wheels are arranged on the pressing rod and abut against the outer wall of the PVC plate after being wound by the winding roller.

[0046] The height of the pressing roller mechanism is adjusted according to the received rising distance, that is, the extension distance of the piston rod of the adjusting cylinder is adjusted according to the received rising distance.

[0047] The PVC coiled material winding device and the production process have the beneficial effects that the rising distance of the winding roller is detected, and the height of the pressing roller mechanism is adjusted according to the rising distance, so that the friction force borne by the PVC plate wound by the winding roller is adjusted, and the friction force between the pressing roller mechanism and the PVC plate is kept within a preset range, so that the local temperature of the PVC plate caused by the friction force is prevented from being too high, and the quality of the PVC plate is not affected.

[0048] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the application. The objects and other advantages of the present application will be realized and attained by the structure particularly pointed out in the description and the drawings.

[0049] In order to make the above-mentioned objects, features and advantages of the present application more apparent, a preferred embodiment is described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0050] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the drawings needed in the specific embodiments or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0051] Figure 1 The structural schematic diagram of the PVC coiled material winding device provided by the embodiment of the present disclosure is shown in the figure.

[0052] Figure 2 The electrical control principle diagram of the PVC coiled material winding device provided by the embodiment of the present disclosure is shown in the figure.

[0053] Figure 3 The sectional view of the PVC coiled material winding device provided by the embodiment of the present disclosure is shown in the figure.

[0054] Figure 4 The front view of the PVC coiled material winding device provided by the embodiment of the present disclosure is shown in the figure.

[0055] Figure 5 The Figure 4 The enlarged view of A in the figure.

[0056] Figure 6 A flow chart of a production process of the PVC coiled material winding device is provided for the embodiments of the present disclosure.

[0057] In the figure: 100, support body; 110, side column; 120, frame; 200, conveying roller; 300, winding roller; 310, winding drum; 400, compression roller mechanism; 410, adjusting cylinder; 420, compression rod; 430, elastic member; 431, lifting plate; 432, sleeve; 433, telescopic rod; 434, reset spring; 440, compression wheel; 441, sliding pipe; 450, back plate; 451, sliding groove; 451a, vertical section; 451b, inclined section; 452, sliding rod; 500, infrared detection module. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme of the present disclosure will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are some of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present disclosure.

[0059] It is found through research that the compression roller mechanism in the related art uses a reset spring to resist the compression roller. As the thickness of the PVC plate wound by the winding roller increases, the pressure between the compression roller and the PVC plate gradually increases, thereby causing the friction force on the PVC plate to gradually increase. If the winding is performed at the previous speed, the local temperature of the PVC plate will be overheated, affecting the performance of the PVC coiled material.

[0060] Based on the above research, the present embodiments provide a PVC coiled material winding device and a production process thereof. The height of the compression roller mechanism is dynamically adjusted, and thereby the friction force between the PVC plate and the compression roller is adjusted, so as to avoid the local temperature of the PVC plate being too high.

[0061] The defects of the above solutions are the results of the inventors after practice and careful research, and therefore, the discovery process of the above problems and the solutions proposed by the present disclosure to the above problems in this paper should be the contributions of the inventors to the present disclosure in the process of the present disclosure.

[0062] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0063] Some embodiments of the present disclosure will be described in detail below in combination with the drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0064] Referring to Figure 1 and Figure 2 At least one embodiment provides a PVC coiled material winding device, comprising the following structures:

[0065] a support body 100 comprising two side columns 110 and a U-shaped frame 120 connecting the side columns 110.

[0066] a conveying roller 200 arranged on the support body 100.

[0067] Specifically, the conveying roller 200 is arranged to rotate between the two side columns 110, and a driving motor and a corresponding transmission gear set for the rotation of the conveying roller 200 are arranged in at least one side column 110.

[0068] In a preferred embodiment, the number of conveying rollers 200 is two, and the two conveying rollers 200 are arranged side by side.

[0069] a winding roller 300 arranged on the support body 100.

[0070] Specifically, the winding roller 300 is arranged to slide between the two side columns 110, and to rise with the increase of the thickness of the PVC plate being wound.

[0071] a pressing roller mechanism 400 arranged above the winding roller 300 and used to press the PVC plate being wound by the winding roller 300.

[0072] Specifically, the pressing roller mechanism 400 is arranged on the frame 120 of the support body 100, and is in abutment with the PVC plate after being wound by the winding roller 300, and is used to press the PVC plate.

[0073] an infrared detection module 500 arranged on the support body 100 and used to detect the rising distance of the winding roller 300.

[0074] Specifically, the infrared detection module 500 is an infrared distance sensor, and the number of infrared distance sensors is two, and each infrared distance sensor is arranged in a corresponding side column 110.

[0075] a control module configured to adjust the height of the pressing roller mechanism 400 according to the received rising distance, so as to adjust the friction force received by the PVC plate being wound by the winding roller 300.

[0076] The height of the pressing roller mechanism 400 is adjusted by the control module, so as to adjust the friction force received by the PVC plate being wound by the winding roller 300, so as to keep the pressure between the pressing roller mechanism 400 and the PVC plate within a required range, and thus the friction force between the PVC plate and the pressing roller does not affect the quality of the PVC plate at a preset winding speed.

[0077] Please continue to refer to Figure 1 The pressing roller mechanism 400 comprises the following structure: two adjusting cylinders 410 fixedly arranged on both sides of the support body 100 and located above the winding roller 300.

[0078] The two adjusting cylinders 410 are synchronously lifted and lowered under the control of the control module, so that the axis of the pressing roller and the winding roller 300 always remains horizontal.

[0079] A pressing rod 420 is elastically connected to the piston rod of the adjusting cylinder 410 through elastic members 430 at both ends.

[0080] A plurality of pressing wheels 440 are sleeved on the pressing rod 420, and the pressing wheels 440 abut against the outer wall of the PVC plate after winding by the winding roller 300. The heat generated by the friction force is dispersed by the plurality of pressing wheels 440, so as to avoid the local temperature of the PVC plate being too high due to the concentrated contact of the PVC plate by the single pressing roller, thereby avoiding the influence on the performance of the PVC plate.

[0081] The control module adjusts the height of the pressing roller mechanism 400 according to the received lifting distance, that is, adjusts the extension distance of the piston rod of the adjusting cylinder 410 according to the received lifting distance.

[0082] Please refer to Figure 3 The lifting distance of the winding roller 300 is L, and the extension distance of the piston rod of the adjusting cylinder 410 is H; wherein H = aL; in the formula, a is a distance adjustment coefficient, the value of which is 1.5-1.95, and the units of H and L are cm.

[0083] It should be noted that when the pressure between the pressing wheel and the winding material is constant, the extension distance H of the piston rod = 2L, and since the PVC plate increases in thickness as it is wound, in order to ensure the winding effect, the pressure between the pressing wheel and the winding material needs to be slightly increased, that is, a coefficient a smaller than 2 needs to be selected to meet the winding use requirement. After multiple tests, the value of a is 1.5-1.95, which does not have a great influence on the winding speed, and at the same time, it also meets the winding requirement. The value of a is set according to different winding material thicknesses and winding speeds when selected.

[0084] At the same time, the increase in the winding thickness will make the heat generated by the friction force more dispersed, thereby avoiding the local temperature being too high.

[0085] Please refer to Figure 4 and Figure 5 The pressing roller mechanism 400 further comprises the following structure:

[0086] A back plate 450 is vertically arranged on the support body 100 and is spaced apart to form a plurality of sliding grooves 451.

[0087] The distance between the back plate 450 and the winding roller 300 is greater than the thickness of the PVC plate wound by the winding roller 300.

[0088] The pressing roller 440 is sleeved on the pressing rod 420 through the sliding pipe 441, and the side wall of the sliding pipe 441 is provided with a sliding rod 452 inserted into the sliding groove 451.

[0089] It should be noted that the pressing roller 440 is rotationally arranged on the sliding pipe 441, and the two sides of the sliding pipe 441 extend radially outward to limit the flange, so as to limit the pressing roller 440 from sliding off the sliding pipe 441.

[0090] The pressing roller 440 rises with the increase of the thickness of the PVC plate wound by the winding roller 300, so as to drive the sliding rod 452 to slide along the sliding groove 451, thereby adjusting the abutting position of the pressing roller 440 and the PVC plate wound by the winding roller.

[0091] In some embodiments, the sliding groove 451 is obliquely arranged on the back plate 450, so as to drive the sliding pipe 441 to slide along the axial direction of the pressing rod 420 when the pressing roller 440 rises, thereby adjusting the abutting position of the pressing roller 440 and the PVC plate wound by the winding roller. The sliding direction of the pressing roller 440 is as shown in F1 or F2 in the figure. Figure 4 The inclination angle a of the sliding groove 451 is in the range of 70°-85°.

[0092] Taking the winding speed of 1 m / s and the thickness of the winding material of 1.5 mm as an example, the inclination angle a and the local temperature of the winding material are shown in the following table:

[0093] Angle of inclination a (°) Coiled material surface temperature (°C) Temperature fluctuation (± °C) 70 47.2 ±2.1 75 59.4 ±1.8 80 66.1 ±1.5 85 76.3 ±1.2

[0094] The temperature resistance value of the PVC winding material is 80℃, that is, the surface temperature of the winding material cannot be higher than 80℃ during winding. According to the above table, when the inclination angle a is in the range of 70°-85°, the temperature resistance requirement of the PVC winding material can be met. When the inclination angle a is 85°, the surface temperature of the winding material is close to 80℃.

[0095] Therefore, in the preferred embodiment, the inclination angle a is 75°.

[0096] During winding, the abutting position between the pressing roller 440 and the PVC plate is changed, so as to change the position of the PVC plate subjected to friction, thereby avoiding the local temperature of the PVC plate being too high.

[0097] Please refer to Figure 5The sliding groove 451 comprises a plurality of vertical segments 451a arranged in a downward-to-upward direction and a plurality of inclined segments 451b connecting adjacent vertical segments 451a.

[0098] The horizontal distance between two adjacent vertical segments is greater than the width of the compression roller, i.e., the compression positions of the compression roller on each vertical segment are staggered, so as to change the position of the PVC plate subjected to friction and avoid local overheat of the PVC plate.

[0099] In the preferred embodiment, the opening direction of the sliding grooves 451 at both ends is inclined outward from the bottom to the top, so that the compression roller 440 rises with the increase of the thickness of the PVC plate wound by the winding roller 300, thereby driving the sliding rod 452 to slide along the sliding groove 451, so that the two compression rollers 440 corresponding to the sliding grooves 451 at both ends slide outward along the axial direction of the compression rod 420.

[0100] Specifically, the sliding direction of the compression roller 440 corresponding to the leftmost sliding groove 451 is shown as F1, and the sliding direction of the compression roller 440 corresponding to the rightmost sliding groove 451 is shown as F2. Figure 4 Figure 4 Specifically, the sliding direction of the compression roller 440 corresponding to the leftmost sliding groove 451 is shown as F1, and the sliding direction of the compression roller 440 corresponding to the rightmost sliding groove 451 is shown as F2.

[0101] Referring to Figure 1 The elastic member 430 comprises a lifting plate 431 arranged on the piston rod of the adjusting cylinder 410, a sleeve 432 fixedly arranged on the lifting plate 431, a telescopic rod 433 arranged on one end of the sleeve 432 and elastically connected with the sleeve 432 through a return spring 434, and a through hole for the compression rod 420 to pass through, wherein the other end of the telescopic rod 433 passes through the sleeve 432.

[0102] Referring to Figure 6 At least one embodiment provides a production process applied to the PVC coiled material winding device.

[0103] Step S1, fixing the winding end of the PVC plate to be wound on the winding drum 310;

[0104] Step S2, arranging the winding drum sleeve 310 behind the winding roller 300 and inserting the winding roller into the bracket body 100;

[0105] Step S3, controlling the conveying roller 200 to start rotating, thereby driving the winding drum 310 to rotate and winding the PVC plate.​

[0106] Step S4, during winding, the rising distance of the winding roller 300 is detected, and the height of the pressure roller mechanism 400 is adjusted according to the received rising distance, so as to adjust the friction force received by the PVC plate wound by the winding roller 300.

[0107] Please refer to Figure 1 The pressure roller mechanism 400 comprises the following structure:

[0108] Two adjusting air cylinders 410 are fixedly arranged on both sides of the support body 100 and above the winding roller 300. The two adjusting air cylinders 410 are synchronously lifted and lowered under the control of the control module, so that the axis of the pressure roller and the winding roller 300 always remains horizontal.

[0109] A pressure rod 420 is elastically connected to the piston rod of the adjusting air cylinder 410 through elastic members 430 at both ends of the pressure rod 420.

[0110] A plurality of pressure wheels 440 are sleeved on the pressure rod 420, and the pressure wheels 440 abut against the outer wall of the PVC plate after being wound by the winding roller 300.

[0111] The plurality of pressure wheels 440 are used to disperse the heat generated by the friction force, so as to avoid the local temperature of the PVC plate being too high due to the concentrated contact of the PVC plate by the single pressure roller, thereby avoiding the influence on the performance of the PVC plate.

[0112] According to the received rising distance, the height of the pressure roller mechanism 400 is adjusted, that is, the extension distance of the piston rod of the adjusting air cylinder 410 is adjusted according to the received rising distance.

[0113] In summary, the present application provides a PVC coiled material winding device and a production process thereof, wherein the PVC coiled material winding device comprises a support body 100, a conveying roller 200 arranged on the support body 100, a winding roller 300 arranged on the support body 100, a pressing roller mechanism 400 arranged above the winding roller 300 and used for pressing the PVC plate wound by the winding roller 300, an infrared detection module 500 arranged on the support body 100 and used for detecting the lifting distance of the winding roller 300, and a control module configured to adjust the height of the pressing roller mechanism 400 according to the received lifting distance, so as to adjust the friction force of the PVC plate wound by the winding roller 300. By detecting the lifting distance of the winding roller 300 and adjusting the height of the pressing roller mechanism 400 according to the lifting distance, the friction force of the PVC plate wound by the winding roller 300 is adjusted, so that the friction force between the pressing roller mechanism 400 and the PVC plate is kept within a preset range, the local temperature of the PVC plate caused by the friction force is avoided to be too high, and thus the quality of the PVC plate is not affected.

[0114] The above is the ideal embodiment of the present application, and the related personnel can make various changes and modifications without deviating from the technical idea of the present application. The technical scope of the present application is not limited by the content of the specification, and must be determined by the scope of the claims.

Claims

1. A PVC web winding device, characterized in that, The utility model relates to a PVC plate rolling device, which comprises the following components: a support body (100); a conveying roller (200) arranged on the support body (100); a winding roller (300) arranged on the support body (100); a pressure roller mechanism (400) arranged above the winding roller (300) and used for pressing the PVC plate wound by the winding roller (300); an infrared detection module (500) arranged on the support body (100) and used for detecting the lifting distance of the winding roller (300); a control module configured to adjust the height of the pressure roller mechanism (400) according to the received lifting distance, so as to adjust the friction force applied to the PVC plate wound by the winding roller (300); the pressure roller mechanism (400) comprises: two adjusting cylinders (410) fixedly arranged on both sides of the support body (100) and located above the winding roller (300); a pressure rod (420) elastically connected to the piston rod of the adjusting cylinder (410) through elastic members (430) at both ends of the pressure rod (420); a plurality of pressure wheels (440) sleeved on the pressure rod (420) and abutting against the outer wall of the PVC plate wound by the winding roller (300); the control module adjusts the height of the pressure roller mechanism (400) according to the received lifting distance, that is, adjusts the extension distance of the piston rod of the adjusting cylinder (410) according to the received lifting distance; the lifting distance of the winding roller is L, and the extension distance of the piston rod of the adjusting cylinder is H; wherein, H = alpha L; in the formula, alpha is a distance adjustment coefficient, the value of which is 1.5-1.95, and the units of H and L are cm; the pressure roller mechanism (400) further comprises: a back plate (450) vertically arranged on the support body (100) and provided with a plurality of sliding grooves (451) at intervals; the pressure wheel (440) is sleeved on the pressure rod (420) through a sliding pipe (441); the side wall of the sliding pipe (441) is provided with a sliding rod (452) inserted into the sliding groove (451); the pressure wheel (440) rises with the increase of the thickness of the PVC plate wound by the winding roller (300), so as to drive the sliding rod (452) to slide along the sliding groove (451), thereby adjusting the abutting position of the pressure wheel (440) and the PVC plate wound by the winding roller (300); the sliding groove (451) is obliquely arranged on the back plate (450) to drive the sliding pipe (441) to slide along the axial direction of the pressure rod (420) when the pressure wheel (440) rises, thereby adjusting the abutting position of the pressure wheel (440) and the PVC plate wound by the winding roller (300); the sliding groove (451) comprises a plurality of vertical segments (451a) arranged at intervals from bottom to top and a plurality of inclined segments (451b) connecting adjacent vertical segments (451a); the inclined direction of the inclined segment (451b) in each sliding groove (451) is consistent; the opening direction of the sliding grooves (451) at both ends of the plurality of sliding grooves (451) is inclined outward from bottom to top. The pressing wheels (440) rise with the increase of the thickness of the PVC plate rolled by the rolling roller (300), thereby driving the sliding rods (452) to slide along the sliding grooves (451), so that two pressing wheels (440) corresponding to the sliding grooves (451) at both ends of the plurality of sliding grooves (451) slide outward along the axial direction of the pressing rod (420).

2. The PVC coiled material rolling device according to claim 1, characterized in that, The elastic member (430) comprises: a lifting plate (431) arranged on the piston rod of the adjusting cylinder (410); a sleeve (432) fixedly arranged on the lifting plate (431); a telescopic rod (433) having one end arranged towards the rolling roller (300) and being elastically connected with the sleeve (432) through a return spring (434), the other end of the telescopic rod (433) penetrating through the sleeve (432); the telescopic rod (433) is further provided with a through hole for the pressing rod (420) to penetrate through; the pressing rod (420) is fixedly connected with the telescopic rod (433) after penetrating through the through hole.

3. A production process applied to the PVC web winding device as claimed in claim 1, characterized in that, The process comprises: fixing the rolling end of the PVC plate to be rolled on the rolling cylinder (310); sleeving the rolling cylinder (310) on the rolling roller (300) and inserting the rolling roller into the support body (100); controlling the conveying roller (200) to start rotating, thereby driving the rolling cylinder (310) to rotate and rolling the PVC plate; detecting the rising distance of the rolling roller (300) during rolling and adjusting the height of the pressing roller mechanism (400) according to the received rising distance, so as to adjust the friction force received by the PVC plate rolled by the rolling roller (300).

4. The production process of the PVC coiled material rolling device according to claim 3, characterized in that, The pressing roller mechanism (400) comprises: two adjusting cylinders (410) fixedly arranged on both sides of the support body (100) and located above the rolling roller (300); a pressing rod (420) having both ends elastically connected with the piston rods of the adjusting cylinders (410) through the elastic members (430); a plurality of pressing wheels (440) sleeved on the pressing rod (420) and abutting against the outer wall of the PVC plate rolled by the rolling roller (300); adjusting the height of the pressing roller mechanism (400) according to the received rising distance, that is, adjusting the extension distance of the piston rods of the adjusting cylinders (410) according to the received rising distance.

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