Anti-wrinkle plastic film forming equipment

Abstract

The invention belongs to the technical field of plastic film forming equipment, and particularly relates to anti-wrinkle plastic film forming equipment. Comprising a first supporting frame, a film blowing machine die head is fixedly installed in the first supporting frame, and the film blowing machine die head is used for extruding a tubular film; a second supporting frame is fixedly mounted at the top of the first supporting frame, a pair of rolling frames is arranged in the second supporting frame, and the rolling frames are used for supporting and stretching a tubular film; a turnover mechanism is fixedly mounted in the second supporting frame, is connected with the rolling frame and is used for controlling the rolling frame to rotate and turn over; the angles of the two rolling frames are kept consistent all the time, the problems of bubbles, wrinkles, bending and the like caused by inconsistent pressure borne by a tubular film are avoided, meanwhile, the problem that the rolling frames are replaced due to long-time shutdown is avoided, and the production efficiency is improved; the opening between the rolling frames can be rapidly adjusted, and the wrinkle problem in the film forming process is further reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of plastic film forming equipment, and in particular relates to an anti-wrinkle plastic film forming equipment. Background Art

[0002] Plastic film forming equipment is a machine used to process plastic raw materials into film forms, including various types, such as film blowing machines, cast film machines, etc. Film blowing machines are one type of plastic film forming equipment, mainly used to produce thermoplastic films such as polyethylene. Its operating principle is to heat and melt plastic particles, extrude the molten material to form a film tube, then blow it up with gas, and cool it to obtain a film product of the required thickness and width. In this process, parameters such as material speed, temperature and airflow need to be closely controlled to ensure the quality and uniformity of the film.

[0003] The Chinese patent with application number 202410295129.3 discloses a method for blow molding of polyethylene antistatic film. The equipment involved in the method includes an extrusion structure, a film blowing structure and a blow molding cover covering the film blowing die head connected in sequence, and also includes a film outlet, a positioning component, a thickness detection component one, a thickness adjustment component one, a cooling component, a multilayer component, a thickness detection component two, a thickness adjustment component two and a cooling component. The present invention performs thickness detection from the outside of the film by a thickness detection component one, and a thickness detection component two from the inside of the film. The thickness is adjusted locally from the outside of the film by a thickness adjustment component one, and the thickness is adjusted locally from the inside of the film by a thickness adjustment component two. The cooling component is used to gather and cool from the outside of the film, and the cooling component is used to supply air to cool from the inside of the film. The method has coherent operation, strong controllability and a large range, and realizes the automation and efficiency of polyethylene antistatic film blow molding, and ensures the blow molding effect.

[0004] In the process of preparing plastic film by blown film molding, the herringbone frame has a great influence on the formation of film wrinkles. The top and bottom openings of the herringbone frame need to be kept at a suitable angle according to the different needs of the film to ensure uniform air flow speed, uniform cooling and uniform pressure on the film, thereby reducing the formation of wrinkles. However, the adjustment method of the herringbone frame is usually single, and the deflection angle cannot be synchronized, resulting in quality problems. At the same time, after a long period of use, the roller on the top of the herringbone frame is prone to severe wear and tear. At this time, it is necessary to stop the machine for replacement, resulting in long maintenance time and low production efficiency. In addition, how to quickly adjust the angle of the herringbone frame to avoid wrinkles is also an important research direction for improving the quality of film production. Summary of the invention

[0005] In order to solve the deficiencies in the prior art, the present invention provides an anti-wrinkle plastic film forming device, which realizes the synchronous deflection of a pair of rolling frames, thereby ensuring that the angles of the two rolling frames are always consistent, avoiding the generation of bubbles, wrinkles and bending caused by inconsistent pressure on the tubular film, and at the same time, can also flip the two rolling frames, thereby avoiding the problem of long-term shutdown to replace the rolling frames, and improving production efficiency; the present invention can quickly adjust the opening between the rolling frames, thereby improving production quality and further reducing the wrinkle problem in the film forming process; the present invention can always ensure that the two rolling frames remain horizontal, avoiding the problems of film distortion or wrinkles caused by subsequent film stretching. At the same time, it will not affect the flipping operation of the flipping mechanism.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A wrinkle-proof plastic film forming device comprises a first support frame, in which a film blowing machine die head is fixedly installed, and the film blowing machine die head is used to extrude a tubular film; a second support frame is fixedly installed on the top of the first support frame, and a pair of rolling frames are provided in the second support frame, and the rolling frames are used to support and stretch the tubular film; a flip mechanism is fixedly installed in the second support frame, and the flip mechanism is connected to the rolling frames, and the flip mechanism is used to control the rotation and flipping of the rolling frames; a roller mechanism is installed on the top of the second support frame, and the roller mechanism is used to flatten and pull the tubular film.

[0008] Furthermore, the rolling frame includes a support frame, which includes two support plates, and the middle parts between the two support plates are fixedly connected by a fixing rod; a plurality of rollers are rotatably connected between the two support plates, and the plurality of rollers are evenly arranged at equal distances; an adjustment groove is fixedly provided on the outer side of one of the support plates, and rotating holes are penetrated at both ends of the adjustment groove, and a lead screw is rotatably connected on the two rotating holes, an adjustment motor is fixedly installed on the outer side of one end of the adjustment groove, and the output end of the adjustment motor is fixedly connected to one end of the lead screw.

[0009] Furthermore, the flipping mechanism includes a gear box, a supporting foot is fixedly provided at the bottom of the gear box, and the supporting foot is fixedly connected to the second supporting frame; a driven gear is provided on both sides of the interior of the gear box, and a driving gear is provided between the two driven gears, and the driven gears are meshed with the driving gear; a first rotating shaft is fixedly connected to the driving gear, and first rotating holes are correspondingly opened on both sides of the gear box, and both ends of the first rotating shaft pass through the corresponding first rotating holes and are rotatably connected thereto; a transmission motor is fixedly installed on the outer wall of the gear box through a bracket, and the output end of the transmission motor is fixedly connected to one end of the first rotating shaft.

[0010] Furthermore, a second rotating shaft is fixedly connected to the driven gear, and second rotating holes are correspondingly opened through both sides of the gear box, and both ends of the second rotating shaft pass through the corresponding second rotating holes and are rotatably connected thereto;

[0011] One end of the second rotating shaft extends into the corresponding adjusting groove and is slidably connected with the adjusting groove; a threaded hole is formed at one end of the second rotating shaft located inside the adjusting groove, and the threaded hole is threadedly connected with the corresponding screw rod.

[0012] Furthermore, the number of teeth of the driven gear is greater than the number of teeth of the driving gear.

[0013] Furthermore, the roller mechanism includes an active roller and a driven roller, and fixed shafts are fixed at both ends of the active roller; an adjustment mechanism is installed on the top of the second support frame, and the adjustment mechanism includes two mounting plates symmetrically fixed at both ends of the top of the second support frame, and second rotating holes are opened through the mounting plates, and the fixed shafts at both ends of the active roller pass through the corresponding second rotating holes and are rotatably connected to the second rotating holes; a second motor is fixedly installed on the outer side of the mounting plate, and the output end of the second motor is fixedly connected to the fixed shaft of the active roller.

[0014] Furthermore, a sliding groove is penetrated through the mounting plate, the driven roller is rotatably connected to the rotating shaft, and both ends of the rotating shaft respectively pass through the corresponding sliding grooves and are slidably connected to the sliding grooves; both ends of the rotating shaft are fixedly connected to transmission plates, one end of the mounting plate is fixedly connected to the base plate, an electric telescopic rod is fixedly installed on the base plate, and one end of the electric telescopic rod is fixedly connected to the corresponding transmission plate.

[0015] Furthermore, a horizontal detection mechanism is provided on a pair of the rolling frames and on a side away from the flipping mechanism, and the horizontal detection mechanism includes a horizontal trough body, and a second fixed rod is fixedly connected to one end of the support plate away from the flipping mechanism, and a slider is fixed to the second fixed rod; the two sliders are located inside the horizontal trough body and are slidably connected to the horizontal trough body; a liquid level is fixedly provided on the side of the horizontal trough body and away from the rolling frame.

[0016] Furthermore, the first support frame includes a base, and the film blowing machine die head is fixedly installed on the base; support rods are fixedly arranged around the base, and the upper ends of the four support rods are fixedly connected to a square frame;

[0017] The second support frame includes a three-dimensional frame and an intermediate rod. The four sides of the square frame are fixedly connected to the three-dimensional frame through the intermediate rod. The roller mechanism is installed on the top of the three-dimensional frame.

[0018] The present invention also claims a method for forming a film using the above-mentioned wrinkle-resistant plastic film forming device, comprising the following steps:

[0019] S1. When the angle of a pair of rolling frames needs to be adjusted, the transmission motor is controlled so that the pair of rolling frames change their angles at the same speed;

[0020] S2, when the bottom opening between the pair of rolling frames is too large, firstly, the end of the second rotating shaft is located above the adjusting slot by controlling the adjusting motor, and then the pair of rolling frames are changed in angle by controlling the transmission motor, so that the bottom opening between the pair of rolling frames changes faster than the top opening;

[0021] S3, when the opening at the top between the pair of rolling frames is too large, firstly, the end of the second rotating shaft is located below the adjusting slot by controlling the adjusting motor, and then the pair of rolling frames are changed in angle by controlling the transmission motor, so that the opening at the bottom between the pair of rolling frames changes at a speed slower than that at the top;

[0022] S4, when the rollers at the top of the pair of rolling frames are seriously worn, the end of the second rotating shaft is firstly positioned above the adjusting slot by controlling the adjusting motor, and then the pair of rolling frames are flipped by controlling the transmission motor, and after flipping, the rolling frames are then kept at the previous angle by cooperating with the adjusting motor;

[0023] S5. Use the liquid level of the level detection mechanism to detect whether the two rolling frames are in the same horizontal state, and control the motor to keep the pair of rolling frames horizontal.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) The present invention realizes the synchronous deflection of a pair of rolling frames through the cooperation of the flipping mechanism and the rolling frame, thereby ensuring that the angles of the two rolling frames are always consistent, avoiding the generation of bubbles, wrinkles and bending caused by inconsistent pressure on the tubular film, and at the same time, it can also flip the two rolling frames, so that the roller with severe wear on the upper end of the rolling frame is replaced to the bottom and the roller with less wear on the lower end of the rolling frame is replaced to the top, thereby avoiding the problem of long-term shutdown to replace the rolling frame and improving production efficiency; specifically, when it is necessary to adjust the angle of a pair of rolling frames, the driving gear is rotated by controlling the transmission motor, and the driven gear is engaged, so that the two driven gears are rotated in opposite directions synchronously at the same speed; because the second rotating shaft and one end located inside the adjustment groove are provided with a threaded hole and the threaded hole is threadedly connected to the corresponding lead screw, when the driven gear rotates, the adjustment groove Since the limit of the screw rod will follow the rotation, the support frame fixedly connected to the adjusting groove will follow the rotation to make a pair of rolling frames deflect synchronously, thereby ensuring that the angles of the two rolling frames are always consistent, avoiding the occurrence of bubbles, wrinkles and bending caused by inconsistent pressure on the tubular film; at the same time, when the roller at the top of a pair of rolling frames is severely worn, the screw rod is first rotated by controlling the adjusting motor, and due to the limit of the adjusting groove, the end of the second rotating shaft is slid on the adjusting groove, so that the end of the second rotating shaft is located above the adjusting groove; then the pair of rolling frames are flipped by controlling the transmission motor, and after flipping, the rolling frames are kept at the previous angle through the coordinated control of the adjusting motor, so that the roller with severe wear on the upper end of the rolling frame is replaced to the bottom and the roller with lighter wear on the lower end of the rolling frame is replaced to the top, thereby avoiding the problem of long-term shutdown to replace the rolling frame and improving production efficiency.

[0026] (2) The present invention realizes different ways of angle adjustment of the rolling frames through the structural design of the adjustment groove, so that the opening between the rolling frames can be quickly adjusted, thereby improving the production quality and further reducing the wrinkle problem in the film forming process; specifically, when the bottom opening between a pair of rolling frames is too large, the adjusting motor is first controlled to make the end of the second rotating shaft located above the adjusting groove, and then the transmission motor is controlled to change the angle of the pair of rolling frames, so that the bottom opening between the pair of rolling frames changes faster than the top opening speed, thereby quickly adjusting the opening between the rolling frames; when the top opening between the pair of rolling frames is too large, the adjusting motor is first controlled to make the end of the second rotating shaft located below the adjusting groove, and then the transmission motor is controlled to change the angle of the pair of rolling frames, so that the bottom opening between the pair of rolling frames changes faster than the top opening speed, thereby quickly adjusting the opening between the rolling frames, and comprehensively realizing different ways of angle adjustment of the rolling frames, so that the opening between the rolling frames can be quickly adjusted, thereby improving the production quality and further reducing the wrinkle problem in the film forming process.

[0027] (3) The present invention can ensure that the two rolling frames remain horizontal at all times through the cooperation of the adjustment groove and the horizontal detection mechanism, thereby avoiding problems such as film distortion or wrinkles caused by subsequent film stretching and the like, and at the same time, will not affect the flipping operation of the flipping mechanism; specifically, when the two rolling frames are not in a horizontal state, the liquid level will display the status, and at this time, the pair of rolling frames can be kept horizontal by controlling one of the adjustment motors; at the same time, when the flipping mechanism performs a flipping operation, since the two sliders are located inside the horizontal groove body and are slidably connected to the horizontal groove body, the sliders will adaptively slide inside the horizontal groove body during the flipping process, thereby preventing the problem of jamming. Until the flipping is completed, the horizontal groove body at the opposite end is still in a horizontal state, and horizontal detection can still be performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of an anti-wrinkle plastic film forming device of the present invention;

[0029] Figure 2 A schematic diagram of the dispersed structure of an anti-wrinkle plastic film forming device of the present invention;

[0030] Figure 3 It is a schematic diagram of the roller mechanism and the adjustment mechanism structure of an anti-wrinkle plastic film forming device of the present invention;

[0031] Figure 4 It is a schematic diagram of the dispersed structure of the roller mechanism of an anti-wrinkle plastic film forming device of the present invention;

[0032] Figure 5 This is a schematic diagram of the rolling frame and the turning mechanism structure of an anti-wrinkle plastic film forming device of the present invention;

[0033] Figure 6 It is a schematic diagram of the partial structure of a horizontal tank body of an anti-wrinkle plastic film forming device of the present invention;

[0034] Figure 7 It is a schematic diagram of a partially dispersed structure of an anti-wrinkle plastic film forming device of the present invention;

[0035] Figure 8 It is a schematic diagram of the partial structure of the adjustment slot of an anti-wrinkle plastic film forming device of the present invention;

[0036] Fig. 9 The present invention is a schematic diagram of the decentralized structure of the turnover mechanism of the anti-wrinkle plastic film forming equipment.

[0037] The reference numerals are as follows:

[0038] first support frame-100; base-110; support rod-120; frame-130; film blowing machine die head-200; second support frame-300; three-dimensional frame-310; middle rod-320; roller mechanism-400; active roller-410; fixed shaft-411; driven roller-420; rotating shaft-421; transmission plate-422; rolling frame-500; support frame-510; support plate-511; fixed rod-512; roller-520; second fixed rod-530; slider-531; adjustment slot-540; adjustment motor-541 ; Screw-542; Rotating hole-543; Flipping mechanism-600; Gear box-610; Support foot-611; Second rotating hole-612; First rotating hole-613; Driven gear-620; Second rotating shaft-621; Threaded hole-622; Driving gear-630; First rotating shaft-631; Transmission motor-640; Adjustment mechanism-700; Mounting plate-710; Bottom plate-720; Sliding groove-730; Electric telescopic rod-740; Second motor-750; Second rotating hole-760; Horizontal trough-800; Liquid level-810. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the embodiments. Of course, the specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0040] Although the steps in the present invention are arranged with numbers, they are not used to limit the order of the steps. Unless the order of the steps is clearly stated or the execution of a certain step requires other steps as a basis, the relative order of the steps can be adjusted. It is understood that the term "and / or" used in this article involves and covers any and all possible combinations of one or more of the associated listed items.

[0041] Example

[0042] like Figures 1 to 9 As shown, an anti-wrinkle plastic film forming device includes a first support frame 100, in which a film blowing machine die head 200 is fixedly installed, and the film blowing machine die head 200 is used to extrude a tubular film; a second support frame 300 is fixedly installed on the top of the first support frame 100, and a pair of rolling frames 500 are provided in the second support frame 300, and the rolling frames 500 are used to support and stretch the tubular film; a flipping mechanism 600 is fixedly installed in the second support frame 300, and the flipping mechanism 600 is connected to the rolling frames 500, and the flipping mechanism 600 is used to control the rotation and flipping of the rolling frames 500; a roller mechanism 400 is installed on the top of the second support frame 300, and the roller mechanism 400 is used to flatten and pull the tubular film.

[0043] The present invention realizes the synchronous deflection of a pair of rolling frames 500 through the cooperation of the flipping mechanism 600 and the rolling frame 500, thereby ensuring that the angles of the two rolling frames 500 are always consistent, avoiding the generation of bubbles, wrinkles and bending caused by inconsistent pressure on the tubular film, and at the same time, the two rolling frames 500 can be flipped, so that the roller 520 with severe wear on the upper end of the rolling frame 500 is replaced to the bottom and the roller 520 with lighter wear on the lower end of the rolling frame 500 is replaced to the top, thereby avoiding the problem of long-term shutdown for replacing the rolling frame 500 and improving production efficiency; the flipping mechanism 600 and the rolling frame 500 will be described in detail later.

[0044] It is worth noting that the power equipment such as the film blowing machine die head 200 of the present invention are all powered by an external power supply, and the film blowing machine die head 200 is a prior art, and the feeding equipment such as the screw extrusion equipment connected thereto is also a conventional technology, which will not be described in detail here.

[0045] Furthermore, the rolling frame 500 includes a support frame 510, and the support frame 510 includes two support plates 511, and the middle part between the two support plates 511 is fixedly connected by a fixing rod 512; a plurality of rollers 520 are rotatably connected between the two support plates 511, and the plurality of rollers 520 are evenly arranged at equal distances; an adjusting groove 540 is fixedly provided on the outer side of one of the support plates 511, and rotating holes 543 are formed at both ends of the adjusting groove 540, and a screw rod 542 is rotatably connected to the two rotating holes 543, and an adjusting motor 541 is fixedly installed on the outer side of one end of the adjusting groove 540, and the output end of the adjusting motor 541 is fixedly connected to one end of the screw rod 542.

[0046] Furthermore, the flip mechanism 600 includes a gear box 610, a supporting foot 611 is fixedly provided at the bottom of the gear box 610, and the supporting foot 611 is fixedly connected to the second support frame 300; a driven gear 620 is provided on both sides of the interior of the gear box 610, and a driving gear 630 is provided between the two driven gears 620, and the driven gears 620 are meshed with the driving gear 630; a first rotating shaft 631 is fixedly connected to the driving gear 630, and first rotating holes 613 are correspondingly opened on both sides of the gear box 610, and both ends of the first rotating shaft 631 pass through the corresponding first rotating holes 613 and are rotatably connected thereto; a transmission motor 640 is fixedly installed on the outer wall of the gear box 610 through a bracket, and the output end of the transmission motor 640 is fixedly connected to one end of the first rotating shaft 631.

[0047] It is worth noting that the transmission motor 640 and the adjustment motor 541 of the present invention are both stepper motors, which can rotate at a fixed angle and can rotate forward or reverse. They are existing mature technologies and will not be described in detail here.

[0048] Furthermore, the driven gear 620 is fixedly connected with a second rotating shaft 621, and the two sides of the gear box 610 are correspondingly penetrated with second rotating holes 612, and both ends of the second rotating shaft 621 pass through the corresponding second rotating holes 612 and are rotatably connected thereto;

[0049] One end of the second rotating shaft 621 extends into the corresponding adjustment slot 540 and is slidably connected to the adjustment slot 540 ; a threaded hole 622 is formed at one end of the second rotating shaft 621 located inside the adjustment slot 540 and the threaded hole 622 is threadedly connected to the corresponding screw rod 542 .

[0050] When the present invention needs to adjust the angle of a pair of rolling frames 500, the driving gear 630 is rotated by controlling the transmission motor 640, and the driven gear 620 is engaged, so that the two driven gears 620 can rotate synchronously in opposite directions at the same speed; since the second rotating shaft 621 and one end located inside the adjusting groove 540 is provided with a threaded hole 622 and the threaded hole 622 is threadedly connected to the corresponding screw rod 542, when the driven gear 620 rotates, the adjusting groove 540 will rotate accordingly due to the limitation of the screw rod 542, and then the support frame 510 fixedly connected to the adjusting groove 540 will rotate accordingly to make the pair of rolling frames 500 deflect synchronously, thereby ensuring that the angles of the two rolling frames 500 are always consistent, avoiding bubbles, wrinkles and bending caused by inconsistent pressure on the tubular film. and other problems arise; at the same time, when the roller 520 at the top of a pair of rolling frames 500 is severely worn, the screw rod 542 is first rotated by controlling the adjusting motor 541, and due to the limitation of the adjusting slot 540, the end of the second rotating shaft 621 is realized to slide on the adjusting slot 540, so that the end of the second rotating shaft 621 is located above the adjusting slot 540; and then the pair of rolling frames 500 are flipped by controlling the transmission motor 640. After flipping, the adjusting motor 541 is then used to cooperate with the control to make the rolling frames 500 maintain the previous angle, so that the roller 520 with severe wear on the upper end of the rolling frame 500 is replaced to the bottom and the roller 520 with lighter wear on the lower end of the rolling frame 500 is replaced to the top, thereby avoiding the problem of long-term shutdown to replace the rolling frame 500, thereby improving production efficiency.

[0051] It is worth mentioning that, in the process of flipping a pair of rolling racks 500, the purpose of sliding the end of the second rotating shaft 621 on the adjusting groove 540 to ensure that the end of the second rotating shaft 621 is located above the adjusting groove 540 is to avoid collision and interference between the subsequent rolling racks 500 when flipping; and the present invention does not further limit the structural dimensions of the adjusting groove 540, which can be flexibly adjusted according to actual conditions, and is not described in detail here.

[0052] Furthermore, the number of teeth of the driven gear 620 is greater than the number of teeth of the driving gear 630. This design facilitates precise adjustment of the rotation angle of the rolling frame 500.

[0053] Furthermore, the roller mechanism 400 includes an active roller 410 and a driven roller 420, and fixed shafts 411 are fixed at both ends of the active roller 410; an adjustment mechanism 700 is installed on the top of the second support frame 300, and the adjustment mechanism 700 includes two mounting plates 710 symmetrically fixed at both ends of the top of the second support frame 300, and a second rotating hole 760 is opened through the mounting plate 710, and the fixed shafts 411 at both ends of the active roller 410 pass through the corresponding second rotating holes 760 and are rotatably connected to the second rotating holes 760; a second motor 750 is fixedly installed on the outer side of the mounting plate 710, and the output end of the second motor 750 is fixedly connected to the fixed shaft 411 of the active roller 410.

[0054] Furthermore, a sliding groove 730 is penetrated through the mounting plate 710, the driven roller 420 is rotatably connected to the rotating shaft 421, and both ends of the rotating shaft 421 respectively pass through the corresponding sliding grooves 730 and are slidably connected to the sliding grooves 730; both ends of the rotating shaft 421 are fixedly connected to the transmission plate 422, one end of the mounting plate 710 is fixedly connected to the base plate 720, an electric telescopic rod 740 is fixedly installed on the base plate 720, and one end of the electric telescopic rod 740 is fixedly connected to the corresponding transmission plate 422.

[0055] The tubular film of the present invention is flattened and pulled between the active roller 410 and the driven roller 420 through the rotation of the active roller 410; at the same time, the adjustment mechanism 700 of the present invention can quickly adjust the gap between the active roller 410 and the driven roller 420 by controlling the electric telescopic rod 740, thereby facilitating and quickly controlling the thickness and molding quality of the film.

[0056] Furthermore, a horizontal detection mechanism is provided on a side of a pair of the rolling frames 500 away from the flipping mechanism 600, and the horizontal detection mechanism includes a horizontal trough body 800, and one end of the support plate 511 away from the flipping mechanism 600 is fixedly connected with a second fixed rod 530, and a slider 531 is fixed to the second fixed rod 530; the two sliders 531 are located inside the horizontal trough body 800 and are slidably connected to the horizontal trough body 800; a liquid level 810 is fixedly provided on the side of the horizontal trough body 800 away from the rolling frame 500.

[0057] The present invention can ensure that the two rolling frames 500 always remain horizontal through the cooperation of the adjustment groove 540 and the horizontal detection mechanism, thereby avoiding problems such as film distortion or wrinkles caused by subsequent film stretching and the like, and at the same time, will not affect the flipping operation of the flipping mechanism 600; specifically, when the two rolling frames 500 are not in a horizontal state, the liquid level 810 will display the status, and at this time, the pair of rolling frames 500 can be kept horizontal by controlling one of the adjustment motors 541; at the same time, when the flipping mechanism 600 performs a flipping operation, since the two sliders 531 are located inside the horizontal groove body 800 and are slidably connected to the horizontal groove body 800, the sliders 531 will adaptively slide inside the horizontal groove body 800 during the flipping process, so that the problem of jamming will not occur, and the horizontal groove body 800 is still in a horizontal state at the opposite end after the flipping is completed, and horizontal detection can still be performed.

[0058] Further, the first support frame 100 includes a base 110, and the film blowing machine die head 200 is fixedly installed on the base 110; support rods 120 are fixedly arranged around the base 110, and the upper ends of the four support rods 120 are fixedly connected to a square frame 130;

[0059] The second support frame 300 includes a three-dimensional frame 310 and an intermediate rod 320. The four sides of the square frame 130 are fixedly connected to the three-dimensional frame 310 through the intermediate rod 320. The roller mechanism 400 is installed on the top of the three-dimensional frame 310. The first support frame 100 and the second support frame 300 facilitate the fixing of components and the transmission of the film.

[0060] A method for film forming using the above-mentioned wrinkle-proof plastic film forming device comprises the following steps:

[0061] S1. When the angles of the pair of rolling frames 500 need to be adjusted, the transmission motor 640 is controlled to change the angles of the pair of rolling frames 500 at the same speed;

[0062] S2. When the bottom opening between the pair of rolling frames 500 is too large, the end of the second rotating shaft 621 is firstly positioned above the adjusting slot 540 by controlling the adjusting motor 541, and then the pair of rolling frames 500 are changed in angle by controlling the transmission motor 640, so that the bottom opening between the pair of rolling frames 500 changes faster than the top opening.

[0063] S3, when the opening at the top between the pair of rolling frames 500 is too large, the end of the second rotating shaft 621 is firstly controlled to be located below the adjusting slot 540 by controlling the adjusting motor 541, and then the pair of rolling frames 500 are changed in angle by controlling the transmission motor 640, so that the opening at the bottom between the pair of rolling frames 500 changes at a speed slower than that at the top;

[0064] S4, when the roller 520 at the top between the pair of rolling frames 500 is seriously worn, the end of the second rotating shaft 621 is firstly controlled to be located above the adjusting slot 540 by controlling the adjusting motor 541, and then the pair of rolling frames 500 are turned over by controlling the transmission motor 640, and after turning over, the adjusting motor 541 is then used to coordinate and control the rolling frames 500 to maintain the previous angle;

[0065] S5. The liquid level meter 810 of the level detection mechanism detects whether the two rolling frames 500 are in the same horizontal state, and the motor 541 is controlled to adjust the pair of rolling frames 500 to maintain the horizontal state.

[0066] The present invention realizes different ways of angle adjustment of the rolling rack 500 through the structural design of the adjustment slot 540, so that the opening between the rolling racks 500 can be quickly adjusted, thereby improving the production quality and further reducing the wrinkle problem in the film forming process; specifically, when the bottom opening between a pair of rolling racks 500 is too large, the end of the second rotating shaft 621 is firstly positioned above the adjustment slot 540 by controlling the adjustment motor 541, and then the pair of rolling racks 500 are changed in angle by controlling the transmission motor 640, so that the opening change speed at the bottom between the pair of rolling racks 500 is greater than the opening change speed at the top, thereby quickly adjusting the rolling racks. 500; when the opening at the top between a pair of rolling racks 500 is too large, the end of the second rotating shaft 621 is firstly positioned below the adjusting slot 540 by controlling the adjusting motor 541, and then the transmission motor 640 is controlled to change the angle of the pair of rolling racks 500, so that the opening at the bottom between the pair of rolling racks 500 changes faster than the opening at the top, thereby quickly adjusting the opening between the rolling racks 500, and comprehensively realizing different angle adjustments of the rolling racks 500, so that the opening between the rolling racks 500 can be quickly adjusted, thereby improving the production quality and further reducing the wrinkle problem in the film forming process.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and changes without departing from the creative concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A wrinkle-proof plastic film forming device, characterized in that: The invention comprises a first support frame (100), wherein a film blowing machine die head (200) is fixedly installed in the first support frame (100), and the film blowing machine die head (200) is used for extruding a tubular film; a second support frame (300) is fixedly installed on the top of the first support frame (100), and a pair of rolling frames (500) are arranged in the second support frame (300), and the rolling frames (500) are used for supporting and stretching the tubular film; a turning mechanism (600) is fixedly installed in the second support frame (300), and the turning mechanism (600) is connected to the rolling frames (500), and the turning mechanism (600) is used for controlling the rotation and turning of the rolling frames (500); a roller mechanism (400) is installed on the top of the second support frame (300), and the roller mechanism (400) is used for flattening and pulling the tubular film.

2. The wrinkle-proof plastic film forming device according to claim 1, characterized in that: The rolling frame (500) comprises a support frame (510), the support frame (510) comprises two support plates (511), the middle part between the two support plates (511) is fixedly connected by a fixing rod (512); a plurality of rollers (520) are rotatably connected between the two support plates (511), and the plurality of rollers (520) are evenly arranged at equal distances; an adjustment groove (540) is fixedly provided on the outer side of one of the support plates (511), rotation holes (543) are provided through both ends of the adjustment groove (540), and screw rods (542) are rotatably connected to the two rotation holes (543); an adjustment motor (541) is fixedly installed on the outer side of one end of the adjustment groove (540), and the output end of the adjustment motor (541) is fixedly connected to one end of the screw rod (542).

3. The wrinkle-proof plastic film forming device according to claim 2, characterized in that: The flip mechanism (600) comprises a gear box (610), the bottom of which is fixedly provided with a support foot (611), and the support foot (611) is fixedly connected to the second support frame (300); a driven gear (620) is provided on both sides of the interior of the gear box (610), and a driving gear (630) is provided between the two driven gears (620), and the driven gears (620) are meshed with the driving gear (630); a first rotating shaft (631) is fixedly connected to the driving gear (630), and first rotating holes (613) are correspondingly opened and penetrated on both sides of the gear box (610), and both ends of the first rotating shaft (631) pass through the corresponding first rotating holes (613) and are rotatably connected thereto; a transmission motor (640) is fixedly installed on the outer wall of the gear box (610) through a bracket, and the output end of the transmission motor (640) is fixedly connected to one end of the first rotating shaft (631).

4. The wrinkle-resistant plastic film forming device according to claim 3, characterized in that: The driven gear (620) is fixedly connected with a second rotating shaft (621), and second rotating holes (612) are correspondingly opened through the two sides of the gear box (610), and both ends of the second rotating shaft (621) pass through the corresponding second rotating holes (612) and are rotatably connected thereto; One end of the second rotating shaft (621) extends into the corresponding adjustment groove (540) and is slidably connected to the adjustment groove (540); a threaded hole (622) is formed on one end of the second rotating shaft (621) located inside the adjustment groove (540), and the threaded hole (622) is threadedly connected to the corresponding screw rod (542).

5. The wrinkle-proof plastic film forming device according to claim 3, characterized in that: The number of teeth of the driven gear (620) is greater than the number of teeth of the driving gear (630).

6. The wrinkle-resistant plastic film forming device according to claim 1, characterized in that: The roller mechanism (400) comprises an active roller (410) and a driven roller (420), and fixed shafts (411) are fixedly provided at both ends of the active roller (410); an adjustment mechanism (700) is installed on the top of the second support frame (300), and the adjustment mechanism (700) comprises two mounting plates (710) symmetrically fixed at both ends of the top of the second support frame (300), and second rotating holes (760) are penetrated through the mounting plates (710), and the fixed shafts (411) at both ends of the active roller (410) pass through the corresponding second rotating holes (760) and are rotatably connected to the second rotating holes (760); a second motor (750) is fixedly installed on the outer side surface of the mounting plate (710), and the output end of the second motor (750) is fixedly connected to the fixed shaft (411) of the active roller (410).

7. The wrinkle-resistant plastic film forming device according to claim 6, characterized in that: The mounting plate (710) is provided with a sliding groove (730) extending therethrough, the driven roller (420) is rotatably connected to the rotating shaft (421), and both ends of the rotating shaft (421) respectively pass through the corresponding sliding grooves (730) and are slidably connected to the sliding grooves (730); both ends of the rotating shaft (421) are fixedly connected to a transmission plate (422), one end of the mounting plate (710) is fixedly connected to a bottom plate (720), an electric telescopic rod (740) is fixedly mounted on the bottom plate (720), and one end of the electric telescopic rod (740) is fixedly connected to the corresponding transmission plate (422).

8. The wrinkle-resistant plastic film forming device according to claim 3, characterized in that: A horizontal detection mechanism is provided on one side of a pair of the rolling frames (500) and away from the flipping mechanism (600), the horizontal detection mechanism comprising a horizontal trough (800), one end of a support plate (511) away from the flipping mechanism (600) is fixedly connected to a second fixing rod (530), and a slider (531) is fixed to the second fixing rod (530); the two sliders (531) are located inside the horizontal trough (800) and are slidably connected to the horizontal trough (800); a liquid level (810) is fixedly provided on one side of the horizontal trough (800) and away from the rolling frame (500).

9. The wrinkle-resistant plastic film forming device according to claim 1, characterized in that: The first support frame (100) comprises a base (110), and the film blowing machine die head (200) is fixedly mounted on the base (110); support rods (120) are fixedly arranged around the base (110), and the upper ends of the four support rods (120) are fixedly connected to a square frame (130); The second support frame (300) comprises a three-dimensional frame (310) and an intermediate rod (320); the four sides of the square frame (130) are fixedly connected to the three-dimensional frame (310) via the intermediate rod (320); and the roller mechanism (400) is installed on the top of the three-dimensional frame (310).

10. A method for forming a film using the wrinkle-resistant plastic film forming device according to any one of claims 1 to 9, characterized in that: The steps include: S1, when the angles of the pair of rolling frames (500) need to be adjusted, the transmission motor (640) is controlled so that the pair of rolling frames (500) change their angles at the same speed; S2, when the opening at the bottom between the pair of rolling frames (500) is too large, the end of the second rotating shaft (621) is firstly positioned above the adjusting slot (540) by controlling the adjusting motor (541), and then the pair of rolling frames (500) are changed in angle by controlling the transmission motor (640), so that the speed of changing the opening at the bottom between the pair of rolling frames (500) is greater than the speed of changing the opening at the top; S3, when the opening at the top between the pair of rolling frames (500) is too large, the end of the second rotating shaft (621) is firstly controlled to be located below the adjusting slot (540) by controlling the adjusting motor (541), and then the pair of rolling frames (500) are changed in angle by controlling the transmission motor (640), so that the opening at the bottom between the pair of rolling frames (500) changes at a speed lower than that at the top; S4, when the roller (520) at the top between the pair of rolling frames (500) is severely worn, the end of the second rotating shaft (621) is firstly positioned above the adjusting groove (540) by controlling the adjusting motor (541), and then the transmission motor (640) is controlled to turn the pair of rolling frames (500), and after turning, the adjusting motor (541) is then used to coordinate and control the rolling frames (500) to maintain the previous angle; S5. Using the liquid level meter (810) of the level detection mechanism to detect whether the two rolling frames (500) are in the same horizontal state, the pair of rolling frames (500) are kept horizontal by controlling the regulating motor (541).

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