A plastic film blowing machine with convenient adjustment

Abstract

The utility model relates to the technical field of blowing film machine, the utility model provides a kind of plastic film blowing film machine of convenient adjustment, it includes protective box, the lateral surface of the frame is fixedly connected in protective box, the inside fixed connection of protective box has double-shaft motor.The utility model further includes adjusting plate, and the top of base plate is fixedly connected.The utility model in the middle, through the mutual cooperation between the double-shaft motor of width adjusting mechanism, adjusting arc plate and fixed cylinder and other components, when needing to adjust plastic film width, staff starts double-shaft motor, drives threaded rod rotation, drives threaded bush to move, and then push connecting rod to slide in moving groove.Connecting rod movement drives adjusting arc plate to move, adjusting arc plate changes film width, through the above technical scheme, the technical problem of inaccuracy, complex operation and low adjustment efficiency in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of blown film machine technology, specifically to a plastic film blown film machine that is easy to adjust. Background Technology

[0002] A plastic film blowing machine (also known as a blown film machine) is a type of equipment commonly used in the production of plastic films, especially in the packaging industry. It uses blow molding technology to process plastic raw materials such as polyethylene (PE), polypropylene (PP), and polyester (PET) into films, which are widely used in food packaging, agricultural coverings, and industrial protection.

[0003] According to a public announcement (announcement number: CN 216993048U), a plastic film blowing machine includes a frame, a discharge hopper, and a main unit. The discharge hopper is located at the lower right end of the frame, and the main unit is located on the left side of the frame. A hopper is located at the upper end of the frame, and feed rollers are located on both the left and right sides between the upper end of the hopper and the frame. A pair of guide rollers are rotatably mounted on the upper inner side of the hopper. Rail plates are located on both the left and right sides at the lower end of the guide rollers, and electromagnetic heating strips are installed in the rail plates. A blowing pipe is located at the lower end of the frame. A hot melt ring and a guide wheel assembly are respectively located at the upper and lower ends of the inner side of the blowing pipe, and a film discharge pipe is located between the hot melt ring and the guide wheel assembly. A matching feed groove is formed between the feed rollers and the guide rollers, and a preheating groove is formed between the left and right rail plates.

[0004] In the aforementioned application, the cooperation between the frame and the guide roller assembly makes it difficult to automatically adjust the width of the plastic film under different processing conditions. Manual pulling is required to adjust the width, which requires the technical accumulation and experience of technicians. This makes it impossible to accurately adjust the film thickness and fails to meet the needs of different types of films. Therefore, we propose a plastic film blowing machine that is easy to adjust. Utility Model Content

[0005] To overcome the above-mentioned defects, this utility model provides an easily adjustable plastic film blowing machine, which solves the technical problems of inaccurate adjustment, complicated operation and low adjustment efficiency in the prior art.

[0006] According to one aspect, at least one embodiment of the present invention provides an easily adjustable plastic film blowing machine, comprising: a base plate, a controller disposed on the top of the base plate, a conveying assembly disposed on the top of the base plate, a frame fixedly connected to the top of the base plate, and a width adjustment mechanism disposed inside the frame;

[0007] The width adjustment mechanism includes a protective box, which is fixedly connected to the side of the frame. A dual-axis motor is fixedly connected inside the protective box. A threaded rod is fixedly connected to the output shaft of the dual-axis motor. A threaded sleeve is threadedly connected to the circumferential surface of the threaded rod. A connecting rod is fixedly connected to the bottom of the threaded sleeve. An adjusting arc plate is fixedly connected to the side of the connecting rod. The purpose of this mechanism is to ensure that the thickness of the film can be automatically adjusted.

[0008] For example, in at least one embodiment of the present invention, an easily adjustable plastic film blowing machine is provided, which further includes: a fixing rod fixedly connected to the inner wall of the frame, and a fixing cylinder fixedly connected to the end of the fixing rod away from the inner wall of the frame, the purpose of which is to ensure that the plastic film can be produced in different widths.

[0009] The protective box has a movable groove inside, and the side of the connecting rod is slidably connected to the inside of the movable groove to ensure that the connecting rod can move stably.

[0010] The frame is equipped with a stretching roller inside, and a fixed plate is fixedly connected to the side of the frame. A conveying roller is rotatably connected inside the fixed plate. The purpose of this is to ensure that the plastic film can be conveyed stably.

[0011] The number of the adjusting arc plates is set to several, and they are symmetrical to each other along the vertical central axis of the frame. The number of the threaded rod, threaded sleeve and moving groove is set to two, and they are symmetrical to each other along the vertical central axis of the frame. The purpose is to ensure balance and stability during the adjustment process.

[0012] According to another aspect, at least one embodiment of this utility model also provides an easily adjustable plastic film blowing machine, comprising: a tension adjustment mechanism, the tension adjustment mechanism including an adjustment plate, the adjustment plate being fixedly connected to the top of a base plate, a support shaft being rotatably connected to the side of the adjustment plate, an adjustment frame being fixedly connected to the circumferential surface of the support shaft, a rotating shaft being fixedly connected to the end of the threaded rod away from the dual-axis motor, a pulley being fixedly connected to the circumferential surface of the rotating shaft, a belt being provided on the circumferential surface of the pulley, an mounting plate being fixedly connected to the side of the frame, a control shaft being rotatably connected to the side of the mounting plate, a pulley being fixedly passed through the circumferential surface of the control shaft, a pull rod being fixedly connected to the circumferential surface of the control shaft, and a rotating plate being fixedly connected to the circumferential surface of the support shaft. The purpose is to adjust the tension of the plastic film after adjusting its width, preventing slack from causing winding problems.

[0013] For example, in at least one embodiment of the present invention, an easily adjustable plastic film blowing machine is provided, which further includes: a sliding groove is provided on the side of the rotating plate, and a telescopic rod is slidably connected inside the sliding groove, the purpose of which is to ensure that the telescopic rod can move through the sliding groove under force.

[0014] The inside of the belt meshes with the circumferential surfaces of pulley one and pulley two. Pulley one is connected to pulley two via the belt for transmission. The purpose is to ensure that the rotation of pulley one can drive pulley two to rotate via the belt.

[0015] The side of the adjustment frame is located below the conveyor roller, and the circumferential surface of the telescopic rod is slidably connected to the inside of the pull rod. The purpose is to improve the adjustment flexibility, accuracy and automation level of the conveyor roller system.

[0016] A torsion spring is fixedly connected to the side of the adjusting plate. The end of the torsion spring away from the side of the adjusting plate is fixedly connected to the circumferential surface of the support shaft. The purpose of this is to ensure that the support shaft can automatically reset and reduce manual intervention.

[0017] The beneficial effects of the embodiments of this utility model are as follows:

[0018] In this invention, through the coordinated operation of components such as the dual-axis motor, adjusting arc plate, and fixed cylinder in the width adjustment mechanism, when the width of the plastic film needs to be adjusted, the operator starts the dual-axis motor, driving the threaded rod to rotate, which in turn moves the threaded sleeve, pushing the connecting rod to slide within the moving groove. The movement of the connecting rod drives the adjusting arc plate to move, and the adjusting arc plate changes the film width. This design achieves precise adjustment of the plastic film width, ensuring accurate dimensional adjustment of the plastic film, meeting work requirements, and improving production efficiency and quality stability.

[0019] In this invention, through the cooperation of components such as the adjusting frame, belt, and pulling rod of the tension adjustment mechanism, the threaded rod rotates, driving the rotating shaft to rotate, which in turn drives pulley one to rotate pulley two via the belt. Pulley two drives the control shaft to rotate, which in turn pushes the pulling rod, which in turn moves the telescopic rod. The telescopic rod pushes the rotating plate, causing the support shaft to rotate, and finally the adjusting frame to rotate, adjusting the roller angle and precisely adjusting the tension of the plastic film. This design achieves the effect of adjusting the tension of the plastic film, ensuring uniform film tension and improving production stability and efficiency. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0021] Figure 1 This is a structural schematic diagram of the overall three-dimensional appearance of the base plate in one embodiment of the present invention;

[0022] Figure 2This is a schematic diagram of the overall three-dimensional cross-section of the base plate in one embodiment of the present invention;

[0023] Figure 3 As one embodiment of this utility model Figure 2 A three-dimensional magnified structural diagram of A in the diagram;

[0024] Figure 4 As one embodiment of this utility model Figure 2 A three-dimensional magnified structural diagram of B;

[0025] Figure 5 As one embodiment of this utility model Figure 1 A three-dimensional magnified structural diagram of C.

[0026] In the diagram: 1. Base plate; 2. Controller; 3. Conveying assembly; 4. Frame; 5. Width adjustment mechanism; 51. Protective box; 52. Dual-axis motor; 53. Threaded rod; 54. Threaded sleeve; 55. Connecting rod; 56. Adjusting arc plate; 57. Fixed rod; 58. Moving groove; 59. Fixed cylinder; 6. Tension roller; 7. Fixed plate; 8. Conveying roller; 9. Tension adjustment mechanism; 91. Adjusting plate; 92. Support shaft; 93. Adjusting frame; 94. Rotating shaft; 95. Pulley 1; 96. Belt; 97. Mounting plate; 98. Control shaft; 910. Pulley 2; 911. Pulling rod; 912. Rotating plate; 913. Slide groove; 914. Telescopic rod; 915. Torsion spring. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] like Figures 1-5 As shown, it illustrates an easily adjustable plastic film blowing machine according to an embodiment of the present invention, comprising: a base plate 1, a controller 2 disposed on the top of the base plate 1, a conveying assembly 3 disposed on the top of the base plate 1, a frame 4 fixedly connected to the top of the base plate 1, and a width adjustment mechanism 5 disposed inside the frame 4.

[0034] The width adjustment mechanism 5 includes a protective box 51, which is fixedly connected to the side of the frame 4. A dual-axis motor 52 is fixedly connected inside the protective box 51. A threaded rod 53 is fixedly connected to the output shaft of the dual-axis motor 52. A threaded sleeve 54 is threadedly connected to the circumferential surface of the threaded rod 53. A connecting rod 55 is fixedly connected to the bottom of the threaded sleeve 54. An adjusting arc plate 56 is fixedly connected to the side of the connecting rod 55. The purpose of this is to ensure that the thickness of the film can be automatically adjusted.

[0035] In some examples, a fixing rod 57 is fixedly connected to the inner wall of the frame 4, and a fixing cylinder 59 is fixedly connected to the end of the fixing rod 57 away from the inner wall of the frame 4. The purpose is to ensure that the plastic film can be produced in different widths.

[0036] The protective box 51 has a movable groove 58 inside, and the side of the connecting rod 55 is slidably connected to the inside of the movable groove 58. The purpose of this is to ensure that the connecting rod 55 can move stably.

[0037] The frame 4 is equipped with a stretching roller 6 inside, and a fixing plate 7 is fixedly connected to the side of the frame 4. A conveying roller 8 is rotatably connected inside the fixing plate 7. The purpose is to ensure that the plastic film can be conveyed stably.

[0038] The number of adjusting arc plates 56 is set to be several, and they are symmetrical to each other along the vertical central axis of the frame 4. The number of threaded rods 53, threaded sleeves 54 and moving grooves 58 is set to be two, and they are symmetrical to each other along the vertical central axis of the frame 4. The purpose is to ensure balance and stability during the adjustment process.

[0039] For example, such as Figures 1-5 As shown, when precise adjustment of the width of the plastic film is required, the operator first starts the dual-axis motor 52. The output shaft of the motor begins to rotate, pushing the threaded rod 53 to rotate. The rotation of the threaded rod 53 causes the threaded sleeve 54 to move along its axial direction. The movement of the threaded sleeve 54 then drives the connecting rod 55 to slide along a predetermined track in the moving groove 58. As the connecting rod 55 moves, the adjusting arc plate 56 also moves accordingly. The adjusting arc plate 56 moves smoothly inside the fixed cylinder 59 through its specific design. Through this precise linkage mechanism, the adjusting arc plate 56 changes the width of the plastic film, ensuring that the size of the plastic film can be precisely adjusted according to work requirements.

[0040] like Figures 1-5 As shown, this invention illustrates an easily adjustable plastic film blowing machine according to another embodiment of the present invention, comprising: a tension adjustment mechanism 9, which includes an adjustment plate 91 fixedly connected to the top of a base plate 1; a support shaft 92 rotatably connected to the side of the adjustment plate 91; an adjustment frame 93 fixedly connected to the circumferential surface of the support shaft 92; a rotating shaft 94 fixedly connected to the end of a threaded rod 53 away from the dual-axis motor 52; a pulley 95 fixedly connected to the circumferential surface of the rotating shaft 94; a belt 96 provided on the circumferential surface of the pulley 95; an mounting plate 97 fixedly connected to the side of a frame 4; a control shaft 98 rotatably connected to the side of the mounting plate 97; a pulley 910 fixedly passing through the circumferential surface of the control shaft 98; a pull rod 911 fixedly connected to the circumferential surface of the control shaft 98; and a rotating plate 912 fixedly connected to the circumferential surface of the support shaft 92. The purpose of this mechanism is to adjust the tension of the plastic film after width adjustment to prevent slack from causing winding problems.

[0041] In some examples, the side of the rotating plate 912 is provided with a groove 913, and a telescopic rod 914 is slidably connected inside the groove 913. The purpose is to ensure that the telescopic rod 914 can move through the groove 913 when subjected to force.

[0042] The inside of belt 96 meshes with the circumferential surfaces of pulley 95 and pulley 910. Pulley 95 is connected to pulley 910 via belt 96. The purpose is to ensure that the rotation of pulley 95 can drive pulley 910 to rotate via belt 96.

[0043] The side of the adjustment frame 93 is located below the conveyor roller 8, and the circumferential surface of the telescopic rod 914 is slidably connected to the inside of the pull rod 911. The purpose is to improve the adjustment flexibility, accuracy and automation level of the conveyor roller 8 system.

[0044] A torsion spring 915 is fixedly connected to the side of the adjusting plate 91. The end of the torsion spring 915 away from the side of the adjusting plate 91 is fixedly connected to the circumferential surface of the support shaft 92. The purpose is to ensure that the support shaft 92 can automatically reset and reduce manual intervention.

[0045] For example, such as Figures 1-5 As shown, when the threaded rod 53 rotates, it drives the rotating shaft 94 to rotate. The rotating shaft 94 rotates, which drives the first pulley 95 to rotate. The rotation of the first pulley 95 drives the second pulley 910 to rotate via the belt 96. The rotation of the second pulley 910 drives the pulling rod 911 to rotate via the control shaft 98. The rotation of the pulling rod 911 drives the telescopic rod 914 to move. The telescopic rod 914 is subjected to force, which drives the support shaft 92 to rotate via the rotating plate 912. The rotation of the support shaft 92 drives the adjusting frame 93 to rotate. The rotation of the adjusting frame 93 drives the internal rollers to adjust the angle, thereby adjusting the tension of the plastic film.

[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An easily adjustable plastic film blowing machine, characterized in that, include: A base plate (1) is provided with a controller (2) on the top of the base plate (1), a conveying assembly (3) is provided on the top of the base plate (1), a frame (4) is fixedly connected to the top of the base plate (1), and a width adjustment mechanism (5) is provided inside the frame (4). The width adjustment mechanism (5) includes a protective box (51), which is fixedly connected to the side of the frame (4). A dual-axis motor (52) is fixedly connected inside the protective box (51). A threaded rod (53) is fixedly connected to the output shaft of the dual-axis motor (52). A threaded sleeve (54) is threadedly connected to the circumferential surface of the threaded rod (53). A connecting rod (55) is fixedly connected to the bottom of the threaded sleeve (54). An adjusting arc plate (56) is fixedly connected to the side of the connecting rod (55).

2. The easily adjustable plastic film blowing machine according to claim 1, characterized in that, A fixing rod (57) is fixedly connected to the inner wall of the frame (4), and a fixing cylinder (59) is fixedly connected to one end of the fixing rod (57) away from the inner wall of the frame (4).

3. The easily adjustable plastic film blowing machine according to claim 2, characterized in that, The protective box (51) has a movable groove (58) inside, and the side of the connecting rod (55) is slidably connected to the inside of the movable groove (58).

4. The easily adjustable plastic film blowing machine according to claim 3, characterized in that, The frame (4) is provided with a stretching roller (6) inside, and a fixing plate (7) is fixedly connected to the side of the frame (4). A conveying roller (8) is rotatably connected inside the fixing plate (7).

5. The easily adjustable plastic film blowing machine according to claim 4, characterized in that, The number of the adjusting arc plates (56) is set to several, and they are symmetrical to each other along the vertical central axis of the frame (4). The number of the threaded rod (53), threaded sleeve (54) and moving groove (58) is set to two, and they are symmetrical to each other along the vertical central axis of the frame (4).

6. The easily adjustable plastic film blowing machine according to claim 5, characterized in that, A tension adjustment mechanism (9) is provided on the top of the base plate (1). The tension adjustment mechanism (9) includes an adjustment plate (91), which is fixedly connected to the top of the base plate (1). A support shaft (92) is rotatably connected to the side of the adjustment plate (91). An adjustment bracket (93) is fixedly connected to the circumferential surface of the support shaft (92). A rotating shaft (94) is fixedly connected to the end of the threaded rod (53) away from the dual-axis motor (52). The circumferential surface of the rotating shaft (94) is fixedly connected to the end of the threaded rod (53) away from the dual-axis motor (52). A pulley (95) is fixedly connected to the frame (4), and a belt (96) is provided on the circumferential surface of the pulley (95). A mounting plate (97) is fixedly connected to the side of the frame (4), and a control shaft (98) is rotatably connected to the side of the mounting plate (97). A pulley (910) is fixedly passed through the circumferential surface of the control shaft (98), and a pull rod (911) is fixedly connected to the circumferential surface of the control shaft (98). A rotating plate (912) is fixedly connected to the circumferential surface of the support shaft (92).

7. The easily adjustable plastic film blowing machine according to claim 6, characterized in that, The rotating plate (912) has a groove (913) on its side, and a telescopic rod (914) is slidably connected inside the groove (913).

8. The easily adjustable plastic film blowing machine according to claim 7, characterized in that, The inside of the belt (96) meshes with the circumferential surfaces of pulley one (95) and pulley two (910), and pulley one (95) is connected to pulley two (910) via the belt (96).

9. The easily adjustable plastic film blowing machine according to claim 8, characterized in that, The side of the adjusting frame (93) is located below the conveying roller (8), and the circumferential surface of the telescopic rod (914) is slidably connected to the inside of the pulling rod (911).

10. The easily adjustable plastic film blowing machine according to claim 9, characterized in that, A torsion spring (915) is fixedly connected to the side of the adjusting plate (91), and one end of the torsion spring (915) away from the side of the adjusting plate (91) is fixedly connected to the circumferential surface of the support shaft (92).

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