Plastic bag winding correcting and deviation preventing device

Abstract

The utility model discloses a plastic bag winding correction anti-deviation device which comprises a rack, wallboards are symmetrically arranged at one end of the rack, a leading-in roller is rotationally installed between the wallboards through an adjusting mechanism, the other end of the rack is rotationally connected with a roller plate through a hinge, and a leading-out roller is rotationally connected to the roller plate. The side, away from the hinge, of the roller plate is connected with a working rod of an air cylinder through a hinged support, the air cylinder is connected to the rack through a hinged support, an adjusting roller is arranged in the middle of the rack, an end shaft at one end of the adjusting roller sleeves a first step base, an end shaft at the other end of the adjusting roller sleeves a second step base of a correcting mechanism, and the correcting mechanism is arranged on the supporting plate. The plastic bag guiding-in device is simple in structure, reasonable in design and novel and unique in idea, the height of the guiding-in roller is adjusted through the adjusting mechanism, effective contact guiding-in in the plastic bag width displacement process is facilitated, meanwhile, tensioning is achieved through rotation of the roller plate supported by the air cylinder, it is guaranteed that the tightness degree of the plastic bag is proper in the plastic bag width displacement process, and wrinkles generated during rolling are avoided.

Description

A plastic bag winding correction and anti-winding device Technical Field

[0001] This utility model relates to the field of new material application technology, and in particular to a device for correcting and preventing deviating during the rolling of plastic bags. Background Technology

[0002] Blow molding, also known as hollow blow molding, is a rapidly developing plastic processing method. The manufacturing process of blown films is very similar in principle to that of blown hollow products, but it does not use molds. From the perspective of plastic processing technology classification, the forming process of blown films is usually included in extrusion.

[0003] After the plastic bag film tube is blow-molded, it needs to be traction-displaced and finally wound up. During the winding process, due to wear of the mechanical structure and installation defects, the displacement of the two sides of the plastic bag film tube may be deviated or asynchronous. Therefore, this application discloses a plastic bag winding correction and anti-winding device. Summary of the Invention

[0004] The purpose of this invention is to address existing problems by providing a device for correcting and preventing misalignment during the winding of plastic bags.

[0005] This utility model is achieved through the following technical solution: a plastic bag winding correction and anti-winding device, including a frame, with wall plates symmetrically arranged at one end of the frame, and an inlet roller rotatably installed between the wall plates through an adjustment mechanism, the other end of the frame is rotatably connected to a roller plate through a hinge, and an outlet roller is rotatably connected to the roller plate, the side of the roller plate away from the hinge is connected to the working rod of a cylinder through a hinge seat, the cylinder is connected to the frame through the hinge seat, an adjustment roller is arranged in the middle of the frame, one end shaft of the adjustment roller is fitted onto a step seat one, and the other end shaft of the adjustment roller is fitted onto a step seat two of the correction mechanism, the correction mechanism is arranged on a support plate.

[0006] As a further improvement to the above solution, the adjustment mechanism includes a waist hole, which is set on the wall panel. A slider is engaged in the waist hole, and the end shaft of the guide roller is rotatably sleeved in the slider. A bushing is sleeved on the end shaft outside the slider, and the lower end of the lead screw is rotatably connected to the bushing. The lead screw is threaded through and connected to the hanging plate. The upper end of the lead screw is connected to a ring handle, and the hanging plate is connected to the upper outer side of the wall panel.

[0007] Rotating the ring handle drives the lead screw to rotate, and the lead screw rotates on the hanging plate and undergoes relative displacement. The lead screw drives the bushing and, through the end shaft, drives the guide roller to perform height displacement, while the slider slides height within the waist hole.

[0008] As a further improvement to the above solution, the correction mechanism includes a step seat two, which is rotatably sleeved on the end shaft of the adjusting roller. The lower end of the step seat two is connected to the end plate, and a universal joint is connected below the end plate. The universal joint is supported on the support plate, and a guide rod is provided on the outside of the universal joint. The guide rod is located in the guide groove, which is connected through the support plate. The upper end of the guide rod is connected to the lower part of the end plate.

[0009] The adjusting roller swings horizontally along the universal joint via the step seat 2 and the end plate, while the guide rod slides within the arc-shaped guide groove, ensuring smooth swinging of the adjusting roller with the step seat 1 as the fulcrum.

[0010] As a further improvement to the above solution, the lower end of the guide rod is connected to an end cap;

[0011] The end cap ensures that the guide rod remains within the arc-shaped guide groove, preventing the guide rod from detaching from the guide groove.

[0012] As a further improvement to the above solution, the tray is connected to the outside of the frame, and the tray is supported and connected to the frame by several corner plates below.

[0013] Angle plates are used to stabilize and reinforce the pallet, preventing it from deforming under load and ensuring smooth horizontal oscillation adjustment of the adjusting roller.

[0014] Compared with the prior art, this utility model has the following advantages: it has a simple structure, reasonable design, and novel and unique concept. The height of the introductory roller is adjusted by the adjustment mechanism to facilitate effective contact and introduction of the plastic bag during the width displacement process. At the same time, the rotation of the roller plate supported by the cylinder achieves tension, ensuring that the tightness of the plastic bag is suitable during the width displacement process and avoiding wrinkles during winding. In addition, the adjustment roller swings with the step seat as the fulcrum and in conjunction with the correction mechanism to ensure the correction of the plastic bag width displacement and ensure that the two sides of the plastic bag move synchronously. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the first aspect of the present invention.

[0016] Figure 2 is a schematic diagram of the second aspect of the present invention.

[0017] Figure 3 is a schematic diagram of the adjustment mechanism.

[0018] Figure 4 is a schematic diagram of the correction mechanism. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] As shown in Figures 1 to 4, a plastic bag winding correction and anti-winding device includes a frame 1. One end of the frame 1 is symmetrically provided with wall plates 3. An inlet roller 2 is rotatably installed between the wall plates 3 through an adjusting mechanism 4. The other end of the frame 1 is rotatably connected to a roller plate 10 through a hinge. An outlet roller 11 is rotatably connected to the roller plate 10. The side of the roller plate 10 away from the hinge is connected to the working rod of a cylinder 12 through a hinge seat. The cylinder 12 is connected to the frame 1 through the hinge seat. An adjusting roller 5 is provided in the middle of the frame 1. One end bushing 42 of the adjusting roller 5 is mounted on a step seat 6. The other end bushing 42 of the adjusting roller 5 is mounted on a step seat 71 of a correction mechanism 7. The correction mechanism 7 is provided on a support plate 8.

[0021] As a further improvement to the above solution, the adjustment mechanism 4 includes a waist hole 31, which is set on the wall panel 3. A slider 41 is engaged in the waist hole 31. The end shaft of the guide roller 2 is rotatably sleeved in the slider 41. A bushing 42 is sleeved on the end shaft outside the slider 41. The lower end of the lead screw 43 is rotatably connected to the bushing 42. The lead screw 43 is threadedly connected to the hanging plate 44. The upper end of the lead screw 43 is connected to the ring handle 45. The hanging plate 44 is connected to the outer side of the upper end of the wall panel 3.

[0022] Rotating the ring handle 45 drives the lead screw 43 to rotate. The lead screw 43 rotates on the hanging plate 44 and undergoes relative displacement. The lead screw 43 drives the bushing 42 and the guide roller 2 through the end shaft to perform height displacement. At the same time, the slider 41 slides in height within the waist hole 31.

[0023] As a further improvement to the above solution, the correction mechanism 7 includes a step seat 71, which is rotatably sleeved on the end shaft of the adjusting roller 5. The lower end of the step seat 71 is connected to the end plate 72, and a universal joint 73 is connected below the end plate 72. The universal joint 73 is supported on the support plate 8. A guide rod 74 is provided on the outside of the universal joint 73. The guide rod 74 is located in the guide groove 9, which is connected through the support plate 8. The upper end of the guide rod 74 is connected to the lower part of the end plate 72.

[0024] The adjusting roller 5 swings horizontally with the universal joint 73 via the step seat 71 and the end plate 72, while the guide rod 74 slides within the arc-shaped guide groove 9, ensuring that the adjusting roller 5 swings smoothly with the step seat 6 as the fulcrum.

[0025] As a further improvement to the above solution, the lower end of the guide rod 74 is connected to the end cap 75;

[0026] The end cap 75 ensures that the guide rod 74 is always within the arc-shaped guide groove 9, preventing the guide rod 74 from detaching from the guide groove 9.

[0027] As a further improvement to the above solution, the tray 8 is connected to the outside of the frame 1, and the tray 8 is supported and connected to the frame 1 by several corner plates.

[0028] The support plate 8 is stabilized and reinforced by the corner plate to prevent it from deforming under load, thus ensuring the smooth operation of the adjusting roller 5 during horizontal swing adjustment.

[0029] The working principle of a plastic bag winding correction and anti-winding device is as follows: The height of the inlet roller 2 is adjusted by the adjustment mechanism 4 to ensure effective contact and introduction of the plastic bag during the width displacement process. At the same time, the roller plate 10 supported by the cylinder 12 is rotated to achieve tension, ensuring that the tightness of the plastic bag is appropriate during the width displacement process and avoiding wrinkles during winding. In addition, the adjustment roller 5 is oscillated with the step seat 6 as the fulcrum and in conjunction with the correction mechanism 7 to ensure the correction of the plastic bag width displacement and ensure that the two sides of the plastic bag move synchronously.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A plastic bag winding correction and anti-winding device, comprising a frame, characterized in that, The frame has symmetrical wall plates at one end, and an inlet roller is rotatably installed between the wall plates through an adjustment mechanism. The other end of the frame is rotatably connected to a roller plate through a hinge, and an outlet roller is rotatably connected to the roller plate. The side of the roller plate away from the hinge is connected to the working rod of a cylinder through a hinge seat. The cylinder is connected to the frame through the hinge seat. An adjustment roller is set in the middle of the frame. The end shaft of one end of the adjustment roller is fitted onto a step seat one, and the end shaft of the other end of the adjustment roller is fitted onto a step seat two of the correction mechanism. The correction mechanism is set on a support plate.

2. The plastic bag winding correction and anti-winding device according to claim 1, characterized in that, The adjustment mechanism includes a waist hole, which is set on the wall panel. A slider is engaged in the waist hole. The end shaft of the guide roller is rotatably sleeved in the slider. A bushing is sleeved on the end shaft outside the slider. The lower end of the lead screw is rotatably connected to the bushing. The lead screw is threaded through and connected to the hanging plate. The upper end of the lead screw is connected to a ring handle. The hanging plate is connected to the upper outer side of the wall panel.

3. The device according to claim 1, wherein the device is characterized by: The correction mechanism includes a step seat two, which is rotatably sleeved on the end shaft of the adjusting roller. The lower end of the step seat two is connected to the end plate, and a universal joint is connected below the end plate. The universal joint is supported on the support plate, and a guide rod is provided on the outside of the universal joint. The guide rod is located in the guide groove, which is connected through the support plate. The upper end of the guide rod is connected to the bottom of the end plate.

4. The device according to claim 3, wherein the device is characterized by: The lower end of the guide rod is connected to an end cap.

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