A plastic film width control mechanism for film blowing machine

Abstract

The utility model discloses a plastic film width control mechanism for a film blowing machine, which relates to the technical field of film blowing machines, and includes a base, both sides of which are provided with mounting frames, and the base is provided with four symmetrical adjustment seats, each of which is provided with a cutting module. The utility model discloses a plastic film width control mechanism for a film blowing machine, which has the function of adjusting the distance between two adjustment seats by using a width adjustment component, so as to adjust the spacing between two cutting modules, so as to achieve the purpose of controlling the width of the cut plastic film, and the adjustment distance is controlled by an infrared distance detector, and after the adjustment is completed, a re-inspection operation is performed by using an external inspection auxiliary component, and two detection sheets are respectively attached to the cutting modules on the two adjustment seats, and the re-inspection effect is achieved by the indication on the distance measuring plate, so as to avoid the detection error of the infrared distance detector causing the subsequent cutting production to not meet the prescribed standards.

Description

Technical Field

[0001] The utility model relates to the technical field of film blowing machines, in particular to a plastic film width control mechanism for film blowing machines. Background Art

[0002] The film blowing machine is a mechanical equipment that mainly heats and melts plastic particles and then blows them into thin films. The films produced have the advantages of high transparency and gloss, strong sealing, environmental protection, non-toxicity, antifreeze and moisture resistance, etc., and are widely used in the packaging of various foods, daily necessities, cosmetics and industrial supplies. After the film blowing machine produces the film, it needs to be cut to ensure that the processed plastic film meets the packaging specifications.

[0003] At present, the cutting width of plastic film is adjusted by directly adjusting the position of the cutting knife through the distance meter. Since the distance meter is easily affected by the external environment, for example, the installation of the distance meter becomes loose after long-term use or the signal transmitting end is damaged, the above situations will lead to an increase in the distance measurement error and a large deviation in the cutting width. Utility Model Content

[0004] The utility model discloses a plastic film width control mechanism for a film blowing machine, aiming to solve the technical problem that a distance meter is easily affected by the external environment, resulting in an increase in distance measurement error and a large deviation in cutting width.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a plastic film width control mechanism for a film blowing machine, comprising a base, mounting frames are arranged on both sides of the base, and four adjustment seats symmetrical in pairs are arranged on the base, and cutting modules are arranged on the adjustment seats, two mutually staggered and symmetrical width adjustment components are arranged on the base, and an external inspection auxiliary component is arranged above the base; the width adjustment component comprises an attached slide plate and an infrared distance detector, and the attached slide plate is fixedly connected to the base, the infrared distance detector is located in the middle of the attached slide plate, and the infrared distance detector is fixedly connected to the base; the external inspection auxiliary component comprises a distance measuring plate and two symmetrical detection sheets.

[0006] The device is provided with a base, a mounting frame, an adjustment seat, a cutting module, a width adjustment component and an external inspection auxiliary component. The device uses the width adjustment component to adjust the distance between the two adjustment seats, thereby adjusting the spacing between the two cutting modules and achieving the purpose of controlling the width of the cut plastic film. The adjustment distance is controlled by an infrared distance detector. After the adjustment is completed, a re-inspection operation is performed using the external inspection auxiliary component. The two inspection sheets are respectively attached to the cutting modules on the two adjustment seats, and the re-inspection effect is achieved through the indication on the distance measuring board, thereby avoiding the detection error of the infrared distance detector that causes the subsequent cutting production to fail to meet the specified standards.

[0007] In a preferred solution, the width adjustment assembly also includes two drive seats, which are fixedly connected to the upper side of the adjustment seat, threaded holes are provided on the two drive seats, and side panels are fixedly connected on both sides of the base, a screw rod is movably connected between the two side panels, the screw rod passes through the threaded holes of the two drive seats and is rotatably connected via the inner wall threads, one end of the screw rod is connected to the adjusting motor via a coupling, and the adjusting motor is fixedly connected to the side panel on one side.

[0008] By providing a width adjustment component, the width adjustment component can adjust the position of the two adjustment seats so that the two adjustment seats are moved away from or closer to each other, so as to ensure that the cutting modules on the two adjustment seats are at a preset cutting spacing position. The cutting spacing is detected and controlled by an infrared distance detector. The adjustment process does not require manual operation and is directly controlled by an adjustment motor, thereby improving the adjustment efficiency.

[0009] In a preferred solution, the cutting module includes a movable knife seat, a cutting motor and a cutting knife, and a slide groove is provided on the adjustment seat, and the movable knife seat is movably connected in the slide groove of the adjustment seat; a hydraulic cylinder is fixedly connected to the adjustment seat, and the telescopic end of the hydraulic cylinder is fixedly connected to the movable knife seat.

[0010] By providing a hydraulic cylinder, the extension and retraction of the hydraulic cylinder can adjust the position of the movable knife seat to achieve the purpose of adjusting the cutting height, so that the device is suitable for plastic film cutting needs with different requirements.

[0011] In a preferred solution, a short shaft is fixedly connected to one side of the two side panels away from the base, the two side panels are movably connected to the mounting frames on the same side, and a flip motor is fixedly connected to the mounting frame on one side, the output end of the flip motor is connected to a rotating shaft through a coupling, and the other end of the rotating shaft is fixedly connected to the short shaft of a side panel.

[0012] By providing a flip motor, after the spacing adjustment of the adjustment seat is completed, the flip motor is started to flip the two cutting modules downward into the working area after the adjustment is completed; during the adjustment process, the cutting module on the adjustment seat is in a flipped upward state, which is convenient for personnel to directly observe the cutting module and can timely detect the state and integrity of the cutting knife.

[0013] In a preferred solution, the external inspection auxiliary component also includes an external inspection frame, which is located between the two mounting frames, and the ranging plate is fixedly connected to the external inspection frame, with scale lines on the ranging plate and symmetrical slide grooves on the upper side of the ranging plate, and two symmetrical movable seats are movably connected to the upper side of the ranging plate, and the two movable seats are respectively fixedly connected to the two detection pieces, and the two movable seats are fixedly connected on one side away from the detection pieces, and the indicator rod is located on the upper side of the ranging plate; the outer sides of the two mounting frames are fixedly connected with bending arc support frames, and the external inspection frame is fixedly connected between the two bending arc support frames.

[0014] By providing an external inspection auxiliary component, the external inspection auxiliary component can re-inspect the cutting module spacing after adjustment, thereby avoiding the subsequent cutting production failing to meet the specified standards due to the detection error of the infrared distance detector.

[0015] From the above, it can be seen that the utility model provides a plastic film width control mechanism for a film blowing machine, which utilizes a width adjustment component to adjust the distance between two adjustment seats, thereby realizing the spacing adjustment between two cutting modules, and achieving the purpose of controlling the width of the cut plastic film. The adjustment distance is controlled by an infrared distance detector. At the same time, after the adjustment is completed, a re-inspection operation is performed using an external inspection auxiliary component, and the two inspection pieces are respectively attached to the cutting modules on the two adjustment seats. The re-inspection effect is achieved through the indication on the distance measuring board, thereby avoiding the technical effect of subsequent cutting production not meeting the specified standards due to the detection error of the infrared distance detector. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a plastic film width control mechanism for a film blowing machine proposed by the utility model;

[0017] Figure 2 This is a schematic structural diagram of a width adjustment component of a plastic film width control mechanism for a film blowing machine proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a base and external inspection auxiliary components of a plastic film width control mechanism for a film blowing machine proposed by the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the structure of an external inspection auxiliary component of a plastic film width control mechanism for a film blowing machine.

[0020] In the attached drawings: 1. base; 2. mounting frame; 3. adjustment seat; 4. cutting module; 401. movable knife seat; 402. cutting motor; 403. cutting knife; 5. width adjustment component; 501. attached slide plate; 502. infrared distance detector; 503. side plate; 504. drive seat; 505. screw rod; 506. adjustment motor; 6. external inspection auxiliary component; 601. distance measuring plate; 602. detection sheet; 603. external inspection frame; 604. scale line; 605. movable seat; 606. indicator rod; 7. hydraulic cylinder; 8. flip motor; 9. bending arc support frame. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0022] The utility model discloses a plastic film width control mechanism for a film blowing machine, which is mainly used in the scenario where a distance meter is easily affected by an external environment, resulting in an increase in distance measurement error and a large deviation in cutting width.

[0023] Reference Figure 1-Figure 4 A plastic film width control mechanism for a film blowing machine includes a base 1, mounting frames 2 are provided on both sides of the base 1, and four adjustment seats 3 symmetrical in pairs are provided on the base 1, and cutting modules 4 are provided on the adjustment seats 3, two mutually staggered and symmetrical width adjustment components 5 are provided on the base 1, and an external inspection auxiliary component 6 is provided above the base 1; the width adjustment component 5 includes an attached slide plate 501 and an infrared distance detector 502, and the attached slide plate 501 is connected to the base 1 by bolts, the infrared distance detector 502 is located in the middle of the attached slide plate 501, and the infrared distance detector 502 is connected to the base 1 by bolts; the external inspection auxiliary component 6 includes a distance measuring plate 601 and two symmetrical detection sheets 602.

[0024] Reference Figure 2 and Figure 3 In a preferred embodiment, the width adjustment assembly 5 also includes two drive seats 504, which are located on the upper side of the adjustment seat 3 and connected by bolts. Threaded holes are provided on the two drive seats 504, and both sides of the base 1 are connected to the side plates 503 by bolts. A screw rod 505 is rotatably connected between the two side plates 503 through a bearing. The screw rod 505 passes through the threaded holes of the two drive seats 504 and is rotatably connected through the inner wall thread. One end of the screw rod 505 is connected to an adjusting motor 506 through a coupling, and the adjusting motor 506 is connected to the side plate 503 on one side by bolts.

[0025] Reference Figure 2 In a preferred embodiment, the cutting module 4 includes a movable knife seat 401, a cutting motor 402 and a cutting knife 403, and a slide groove is provided on the adjusting seat 3, and the movable knife seat 401 is slidably connected in the slide groove of the adjusting seat 3; a hydraulic cylinder 7 is connected to the adjusting seat 3 by bolts, and the telescopic end of the hydraulic cylinder 7 is connected to the movable knife seat 401 by bolts.

[0026] Reference Figure 2 and Figure 3 In a preferred embodiment, the two side plates 503 are connected to short shafts on one side away from the base 1 by bolts, the two side plates 503 are rotatably connected to the mounting frame 2 on the same side by bearings, and the mounting frame 2 on one side is connected to the flip motor 8 by bolts, the output end of the flip motor 8 is connected to a rotating shaft through a coupling, and the other end of the rotating shaft is connected to the short shaft of one side plate 503 by bolts.

[0027] Reference Figure 3 and Figure 4 In a preferred embodiment, the external inspection auxiliary component 6 also includes an external inspection frame 603, which is located between the two mounting frames 2, and the distance measuring plate 601 is connected to the external inspection frame 603 by bolts. A scale line 604 is provided on the distance measuring plate 601, and a symmetrical sliding groove is provided on the upper side of the distance measuring plate 601. Two symmetrical movable seats 605 are slidably connected to the upper side of the distance measuring plate 601, and the two movable seats 605 are respectively connected to the two detection pieces 602 by bolts. The sides of the two movable seats 605 away from the detection pieces 602 are both connected by bolts with indicator rods 606, and the indicator rods 606 are located on the upper side of the distance measuring plate 601; the outer sides of the two mounting frames 2 are both connected with bending arc brackets 9 by bolts, and the external inspection frame 603 is located between the two bending arc brackets 9 and connected by bolts.

[0028] Working principle: the positions of the two adjustment seats 3 are adjusted according to the preset specifications, that is: the adjustment motor 506 is started to drive the screw rod 505 to rotate, and the two driving seats 504 move on the attached slide 501 to synchronously approach or move away, the spacing between the two adjustment seats 3 is adjusted, and the infrared distance detector 502 detects the distance between the two adjustment seats 3 to make it reach the specified spacing; after the two adjustment seats 3 are adjusted, the two active seats 605 are pushed to move toward the cutting knife 403 of the cutting module 4 until the two detection pieces 602 are in contact with the two cutting knives 403, at this time, the indicator rod 606 on the active seat 605 is observed to determine whether the indication of the indicator rod 606 is the same as the spacing number fed back by the infrared distance detector 502; after the adjustment and re-inspection operations are completed, the flip motor 8 is started to flip the two cutting modules 4 after the adjustment is completed and enter the working area to perform the plastic film cutting operation.

[0029] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. The replacement can be a replacement of part of the structure, device, method step, or a complete technical solution. Equivalent replacement or change based on the technical solution of the utility model and its utility model concept should be included in the protection scope of the utility model.

Claims

1. A plastic film width control mechanism for a film blowing machine, comprising a base (1), characterized in that: Mounting frames (2) are provided on both sides of the base (1), and four adjustment seats (3) are provided on the base (1) in pairs, and cutting modules (4) are provided on the adjustment seats (3). Two mutually offset and symmetrical width adjustment components (5) are provided on the base (1), and an external inspection auxiliary component (6) is provided above the base (1); the width adjustment component (5) comprises an attached slide plate (501) and an infrared distance detector (502), and the attached slide plate (501) and the base (1) are fixedly connected, the infrared distance detector (502) is located in the middle of the attached slide plate (501), and the infrared distance detector (502) and the base (1) are fixedly connected; the external inspection auxiliary component (6) comprises a distance measuring plate (601) and two symmetrical detection sheets (602).

2. A plastic film width control mechanism for a film blowing machine according to claim 1, characterized in that: The width adjustment assembly (5) further comprises two drive seats (504), the drive seats (504) being fixedly connected to the upper side of the adjustment seat (3), the two drive seats (504) being provided with threaded holes, and the two sides of the base (1) being fixedly connected to side plates (503), a screw rod (505) being movably connected between the two side plates (503), the screw rod (505) passing through the threaded holes of the two drive seats (504) and being rotatably connected via inner wall threads, one end of the screw rod (505) being connected to an adjustment motor (506) via a coupling, and the adjustment motor (506) being fixedly connected to the side plate (503) on one side.

3. A plastic film width control mechanism for a film blowing machine according to claim 1, characterized in that: The cutting module (4) comprises a movable knife seat (401), a cutting motor (402) and a cutting knife (403), and a sliding groove is provided on the adjustment seat (3), and the movable knife seat (401) is movably connected in the sliding groove of the adjustment seat (3).

4. A plastic film width control mechanism for a film blowing machine according to claim 3, characterized in that: The adjustment seat (3) is fixedly connected to a hydraulic cylinder (7), and the telescopic end of the hydraulic cylinder (7) is fixedly connected to the movable knife seat (401).

5. A plastic film width control mechanism for a film blowing machine according to claim 2, characterized in that: A short shaft is fixedly connected to one side of the two side plates (503) away from the base (1), the two side plates (503) are movably connected to the mounting frame (2) on the same side, and a flip motor (8) is fixedly connected to the mounting frame (2) on one side, the output end of the flip motor (8) is connected to a rotating shaft via a coupling, and the other end of the rotating shaft is fixedly connected to the short shaft of one side plate (503).

6. A plastic film width control mechanism for a film blowing machine according to claim 1, characterized in that: The external inspection auxiliary component (6) further comprises an external inspection frame (603), the external inspection frame (603) being located between the two mounting frames (2), the distance measuring plate (601) being fixedly connected to the external inspection frame (603), a scale line (604) being provided on the distance measuring plate (601), and a symmetrical sliding groove being provided on the upper side of the distance measuring plate (601), two symmetrical movable seats (605) being movably connected to the upper side of the distance measuring plate (601), the two movable seats (605) being fixedly connected to the two detection sheets (602) respectively, and an indicating rod (606) being fixedly connected to the side of the two movable seats (605) away from the detection sheet (602), and the indicating rod (606) being located on the upper side of the distance measuring plate (601).

7. A plastic film width control mechanism for a film blowing machine according to claim 6, characterized in that: The outer sides of the two mounting frames (2) are both fixedly connected with curved support frames (9), and the external inspection frame (603) is located between the two curved support frames (9) and is fixedly connected.

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