Film hanging prevention device for air bellow of transverse pulling mechanism

Abstract

The utility model provides an air bellow anti-film-hanging device of a transverse pulling mechanism, and belongs to the technical field of film material manufacturing. The air bellow anti-film-hanging device of the transverse pulling mechanism comprises a heating assembly, an annular metal separation net, a driving assembly and a supporting frame. The heating assembly comprises an upper heating unit and a lower heating unit which are opposite up and down and are distributed at intervals, and a heating channel for a membrane material to pass through is formed between the upper heating unit and the lower heating unit; the annular metal separation net is located in the heating channel and located on the side close to the lower heating unit, and the annular metal separation net is configured to be capable of covering the top end face of the lower heating unit; the driving assembly is in transmission connection with the two ends of the annular metal separation net so that the annular metal separation net can move in the breadth direction of the membrane material or the conveying direction of the membrane material. The supporting frame is located below the driving assembly, rotatably connected with the driving assembly and used for supporting the driving assembly, and the transverse pulling mechanism air bellow anti-film-hanging device has the advantages of being simple in structure, small in occupied space and the like.

Description

Technical Field

[0001] The present application relates to the technical field of membrane material manufacturing, and in particular to a bellows anti-film hanging device of a horizontal pulling mechanism. Background Art

[0002] During the manufacturing process of the membrane material, steps such as longitudinal stretching and transverse stretching usually require heating with the aid of a static pressure box. The following operations are generally used during the heating process of the membrane material: the membrane material is clamped by a clamp on both sides along the width direction, and moves synchronously with the clamp along the conveying direction of the membrane material. The fan sends the heated air into the static pressure box. After passing through the static pressure box, the air is evenly blown onto the surface of the film to achieve the effect of heating the film. In order to prevent the film from detaching from the clamp or the film from breaking and falling directly onto the lower static pressure box, causing the production line to stop, an anti-film hanging device is usually required to carry and collect the fallen film material without affecting the heating effect. However, the existing anti-film hanging device has the problem of occupying a large space due to unreasonable structural design. Utility Model Content

[0003] The purpose of the present application is to provide a horizontal pulling mechanism bellows anti-film hanging device, which has the advantages of simple structure and small space occupation.

[0004] The embodiment of the present application is implemented as follows:

[0005] The embodiment of the present application provides a horizontal pulling mechanism bellows anti-film hanging device, comprising a heating assembly, an annular metal screen, a driving assembly and a support frame. The heating assembly comprises an upper heating unit and a lower heating unit which are opposite to each other and spaced apart, and a heating channel for the film material to pass through is formed between the upper heating unit and the lower heating unit; the annular metal screen is located in the heating channel and on the side close to the lower heating unit, and the annular metal screen is configured to cover the top end surface of the lower heating unit; the driving assembly is transmission-connected to both ends of the annular metal screen so that the annular metal screen can move along the width direction of the film material or the conveying direction of the film material; the support frame is located below the driving assembly and rotatably connected to the driving assembly, and is used to support the driving assembly.

[0006] In the prior art, the annular metal screen in the anti-film-hanging device usually surrounds the lower heating unit as a whole. Since the overall size of the lower heating unit is relatively large, the annular metal screen also needs to be relatively large, which causes the entire anti-film-hanging device to have problems such as occupying a large space and being difficult to install and fix. In the present application, the annular metal screen is entirely installed in the heating channel formed between the upper heating unit and the lower heating unit, and the operation of the annular metal screen is realized with the help of a driving assembly and a supporting frame. The annular metal screen under this arrangement has a relatively small size, so that the entire anti-film-hanging device has the advantage of occupying a small space, and at the same time, it is also convenient to install and fix it in a limited space.

[0007] In some optional embodiments, the driving assembly includes a first rotating rod, a second rotating rod and a driving member. Along the movement direction of the annular metal partition, the two rotating rods are spaced apart on both sides of the lower heating unit and are respectively connected to the two ends of the annular metal partition in a transmission manner. The end of the first rotating rod is connected to the driving member, and the driving member is configured to drive the first rotating rod to rotate to drive the annular metal partition to move; the support frame is located below the driving assembly and is rotatably connected to the two rotating rods.

[0008] In the above technical solution, the driving assembly is configured in the form of two rotating rods and a driving member cooperating with each other, which has the advantages of simple structure, small volume, and easy installation and fixing. Among them, along the driving direction of the annular metal screen, the two rotating rods are spaced apart and distributed on both sides of the lower heating unit and are respectively connected to the two ends of the annular metal screen in a transmission manner, so that the annular metal screen can cover the entire top end surface of the lower heating unit, thereby reducing the risk of broken film falling onto the upper surface of the lower heating unit.

[0009] In some optional embodiments, the first rotating rod includes a rotating part and a fixed part rotatably mounted on both ends of the rotating part, the rotating part is located in an area between the two fixed parts and is transmission-connected to the end of the annular metal partition net, and one end of the rotating part is transmission-connected to the driving member to drive the annular metal partition net to move; the support frame is located below the first rotating rod and is respectively connected to the two fixed parts.

[0010] In the above technical solution, the first rotating rod is configured in a form in which the fixed part and the rotating part can be rotatably matched, which is similar to a common bearing-type structure, and has the advantages of simple structure, good transmission stability, and convenience for industrial manufacturing. Among them, the support frame is located below the first rotating rod and is connected to the two fixed parts located at both ends of the rotating part to play a role in stably supporting the first rotating rod.

[0011] In some optional embodiments, a gear that can move synchronously with the rotating part is provided on the outer shell of the rotating part, and the rotating part is transmission-connected to the end of the annular metal partition through the gear.

[0012] In the above technical solution, the rotating part and the annular metal partition are connected by gears, which has the advantages of good transmission stability and a relatively compact overall structure.

[0013] In some optional embodiments, the driving member is a rotating handle, and the driving assembly further includes a limit guide unit, which is connected to the rotating handle and is configured to enable the rotating handle to rotate in one direction.

[0014] In the above technical solution, the rotating handle is used as a driving part, and a limiting guide unit is provided that only allows the rotating handle to rotate in one direction. This can accurately and controllably transport the film material on the annular metal partition net to the designated area along the set direction, thereby facilitating centralized processing.

[0015] In some optional embodiments, the limit guide unit includes a limit gear, a metal sheet and a spring. The limit gear is sleeved on the connecting rod of the rotating handle. A limit groove is provided on the end face of the support frame close to the driving assembly. One end of the metal sheet is embedded in the limit groove, and the other end of the metal sheet extends to the tooth groove of the limit gear. The spring is located in the limit groove and is compressed and abutted between the metal sheet and the groove wall of the limit groove.

[0016] In the above technical solution, the limit guide unit is composed of a limit gear, a metal sheet and a spring. At the same time, a limit groove is opened on the end face of the support frame, and one end of the metal sheet is fixed in the limit groove and the other end is extended into the tooth groove of the limit gear, so that the metal sheet can always apply resistance to the limit gear in the clockwise or counterclockwise direction to prevent it from rotating, thereby realizing the unidirectional rotation of the rotating handle.

[0017] In some optional embodiments, the movement direction of the annular metal screen is the same as the width direction of the film material.

[0018] In the above technical scheme, the epoxy metal screen moves along the width direction of the membrane material. Compared with the movement along the conveying direction of the membrane material, the travel of the annular metal screen under the first setting form is shorter, and the distance for the membrane material that falls onto the annular metal screen to reach the collection point is short, which can achieve efficient conveying and collection of the membrane material; in addition, the middle area of ​​the annular metal screen under the first setting form is not easy to sag due to its own excessive gravity (that is, the annular metal screen is not easy to contact the upper surface of the lower heating unit), which can reduce the operating failure rate of the equipment.

[0019] In some optional embodiments, the horizontal pulling mechanism bellows anti-film hanging device also includes a collecting box for collecting broken films dropped from the annular metal partition mesh. Along the movement direction of the annular metal partition mesh, the collecting box is located below the corresponding end of the annular metal partition mesh.

[0020] In the above technical solution, a collection box is added to the horizontal pulling mechanism bellows anti-film hanging device at one end corresponding to the movement path of the annular metal screen to collect the broken films dropped from the annular metal screen. This can effectively solve the problem of broken films being scattered everywhere during the recycling process and at the same time, can also play the function of temporarily storing broken films.

[0021] In some optional embodiments, the outer surface of the annular metal partition is sprayed with a Teflon coating.

[0022] In the above technical solution, the outer surface of the annular metal screen is sprayed with Teflon coating, which can reduce the risk of film fragments sticking to the annular metal screen due to its high temperature resistance and low viscosity, thereby facilitating the transportation and collection of the film fragments.

[0023] In some optional embodiments, the specification of the annular metal screen is 5-15 meshes.

[0024] In the above technical solution, a ring-shaped metal screen of specific specifications is used, which can better balance the functions of collecting broken films and conveying hot air (if the aperture is too small, it is easy to affect the conveying of hot air; if the aperture is too large, the broken films are easy to pass through the holes and fall onto the lower heating unit). BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of an existing horizontal pulling mechanism bellows anti-film hanging device in a first viewing angle;

[0027] Figure 2 A schematic structural diagram of a bellows anti-film-hanging device of a horizontal pulling mechanism provided in an embodiment of the present application at a first viewing angle;

[0028] Figure 3 A schematic structural diagram of a bellows anti-film-hanging device of a horizontal pulling mechanism provided in an embodiment of the present application at a second viewing angle;

[0029] Figure 4 for Figure 3 Schematic diagram of the local structure;

[0030] Figure 5 A schematic diagram of a local structure of a driving assembly provided in an embodiment of the present application after a guide limit unit is provided at a first viewing angle;

[0031] Figure 6 A schematic structural diagram of another bellows anti-film hanging device of a horizontal pulling mechanism provided in an embodiment of the present application at a first viewing angle.

[0032] Icons: 10a- bellows device for preventing film hanging of horizontal pulling mechanism; 10b- bellows device for preventing film hanging of horizontal pulling mechanism; 100- heating assembly; 110- upper heating unit; 120- lower heating unit; 130- heating channel; 200- annular metal partition; 300- driving assembly; 310- first rotating rod; 311- rotating part; 312- fixed part; 313- gear; 320- second rotating rod; 330- driving member; 331- hand-held rod; 332- connecting rod; 340- limiting guide unit; 341- limiting gear; 342- metal sheet; 343- spring; 400- supporting frame; 410- supporting rod; 411- limiting groove; 500- collecting box; a- width direction of film material; b- conveying direction of film material. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of this application, it should be noted that the terms "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0037] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0039] See also Figure 1 In the existing horizontal pulling mechanism bellows anti-film-hanging device 10a, its annular metal screen 200 is usually set to completely surround the lower heating unit 120, resulting in the annular metal screen 200 itself having a large size (based on this structure, at least four corners need to be provided with conveying rollers to achieve the normal operation of the annular metal screen 200), which leads to the overall size and space occupation of the horizontal pulling mechanism bellows anti-film-hanging device 10a. The problem is that it is large in overall size and space occupation and is not easy to install and fix; at the same time, the large size also leads to a large stroke, making it difficult to achieve efficient collection of broken films. Therefore, considering the rationality of the layout of the equipment installation and the efficient operation of the production line, there is an urgent need for an anti-film-hanging device with a simpler overall structure and a smaller space occupation.

[0040] The following is a detailed description of the horizontal pulling mechanism bellows anti-film hanging device provided in the present application.

[0041] See also Figure 2 and Figure 3 The embodiment of the present application provides a horizontal pulling mechanism bellows anti-film hanging device 10b, comprising a heating assembly 100, an annular metal screen 200, a driving assembly 300 and a supporting frame 400. The heating assembly 100 comprises an upper heating unit 110 and a lower heating unit 120 which are opposite to each other and spaced apart from each other, and a heating channel 130 is formed between the upper heating unit 110 and the lower heating unit 120 for the film material to pass through; the annular metal screen 200 is located in the heating channel 130 and is located on a side close to the lower heating unit 120, and the annular metal screen 200 is configured to cover the top end surface of the lower heating unit 120; the driving assembly 300 is transmission-connected to both ends of the annular metal screen 200 so that the annular metal screen 200 can move along the width direction a of the film material or the conveying direction b of the film material; the supporting frame 400 is located below the driving assembly 300 and is rotatably connected to the driving assembly 300, and is used to support the driving assembly 300.

[0042] In the present application, the annular metal mesh 200 is entirely installed in the heating channel 130 formed between the upper heating unit 110 and the lower heating unit 120, and the operation of the annular metal mesh 200 is achieved with the help of the driving assembly 300 and the support frame 400. The annular metal mesh 200 under this setting has a smaller size, so that the entire anti-film device has the advantage of occupying less space, and at the same time, it is also convenient to install and fix it in a limited space.

[0043] It should be noted that the forms of the upper heating unit 110 and the lower heating unit 120 are not limited and can be set according to actual needs. For example, along the conveying direction b of the film material, the heating units can each adopt a large-sized static pressure box or a plurality of small-sized static pressure boxes distributed at intervals.

[0044] It should be noted that the form of the support frame 400 is not limited, as long as it can support the driving assembly 300 and does not affect its rotation, for example, it can be in the form of a plurality of support rods 410 distributed at intervals.

[0045] It should be noted that the specific form of the driving assembly 300 is not limited, as long as it can drive the annular metal screen 200 to move along a set direction.

[0046] See also Figure 2 As an example, the driving assembly 300 includes a first rotating rod 310, a second rotating rod 320 and a driving member 330. Along the movement direction of the annular metal partition 200, the two rotating rods are spaced apart on both sides of the lower heating unit 120 and are respectively connected to the two ends of the annular metal partition 200 for transmission. The end of the first rotating rod 310 is connected to the driving member 330. The driving member 330 is configured to drive the first rotating rod 310 to rotate so as to drive the annular metal partition 200 to move. The support frame 400 is located below the driving assembly 300 and is rotatably connected to the two rotating rods respectively.

[0047] In this embodiment, the driving assembly 300 is configured in the form of two rotating rods and a driving member 330 cooperating with each other, which has the advantages of simple structure, small volume, and easy installation and fixing. Among them, along the driving direction of the annular metal screen 200, the two rotating rods are spaced apart and distributed on both sides of the lower heating unit 120 and are respectively connected to the two ends of the annular metal screen 200 in a transmission manner, so that the annular metal screen 200 can cover the entire top end surface of the lower heating unit 120, thereby reducing the risk of broken film falling onto the upper surface of the lower heating unit 120.

[0048] See also Figure 4As an example, the first rotating rod 310 includes a rotating part 311 and a fixed part 312 rotatably mounted on both ends of the rotating part 311. The rotating part 311 is located in an area between the two fixed parts 312 and is transmission-connected to the end of the annular metal partition 200. One end of the rotating part 311 is transmission-connected to the driving member 330 to drive the annular metal partition 200 to move. The support frame 400 is located below the first rotating rod 310 and is respectively connected to the two fixed parts 312.

[0049] In this embodiment, the first rotating rod 310 is configured in a form in which the fixed portion 312 and the rotating portion 311 can be rotatably matched, which is similar to a common bearing-type structure, and has the advantages of simple structure, good transmission stability, and convenience for industrial manufacturing. Among them, the support frame 400 is located below the first rotating rod 310 and is connected to the two fixed portions 312 located at both ends of the rotating portion 311, so as to play a role in stably supporting the first rotating rod 310.

[0050] See also Figure 4 As an example, the outer sleeve of the rotating part 311 is provided with a gear 313 which can move synchronously with the rotating part 311 , and the rotating part 311 is transmission-connected to the end of the annular metal partition 200 via the gear 313 .

[0051] In this embodiment, the rotating part 311 and the annular metal partition 200 are connected in transmission via the gear 313, which has the advantages of good transmission stability and a relatively compact overall structure.

[0052] As an example, a plurality of gears 313 are provided, and the plurality of gears 313 are distributed at intervals along the axial direction of the first rotating rod 310 .

[0053] It should be noted that the number of the gears 313 is not limited and can be adjusted according to actual needs, for example, it can be two, three or four.

[0054] It should be noted that the second rotating rod 320 can be configured with reference to the first transmission rod, and the difference between the second rotating rod 320 and the first rotating rod 310 is that the second rotating rod 320 does not need to be transmission-connected with the driving member 330 .

[0055] As an example, the second movable rod includes a rotating part 311 and a fixed part 312 rotatably mounted on both ends of the rotating part 311. The rotating part 311 is located in an area between the two fixed parts 312 and is transmission-connected to the end of the annular metal partition 200 to drive the annular metal partition 200 to move under the action of the driving member 330; the support frame 400 is located below the second rotating rod 320 and is respectively connected to the two fixed parts 312.

[0056] See also Figure 4 and Figure 5 ,in, Figure 5Only the connecting rod 332 of the rotating handle is shown, and the holding rod 331 of the rotating handle is not shown. As an example, the driving member 330 is a rotating handle, and the driving assembly 300 also includes a limit guide unit 340, which is connected to the rotating handle and is configured to enable the rotating handle to rotate in one direction.

[0057] In this embodiment, the rotating handle is used as the driving member 330, and a limiting guide unit 340 is provided that only allows the rotating handle to rotate in one direction. This can accurately and controllably transport the film material on the annular metal mesh 200 to a designated area along a set direction, thereby facilitating centralized processing.

[0058] It should be noted that the rotating handle includes a hand-held rod 331 and a connecting rod 332 , and the connecting rod 332 is connected to one end corresponding to the rotating part 311 .

[0059] See also Figure 5 As an example, the limit guide unit 340 includes a limit gear 341, a metal sheet 342 and a spring 343. The limit gear 341 is sleeved on the connecting rod 332 of the rotating handle. A limit groove 411 is provided on the end face of the support frame 400 close to the driving assembly 300. One end of the metal sheet 342 is embedded in the limit groove 411, and the other end of the metal sheet 342 extends to the tooth groove of the limit gear 341. The spring 343 is located in the limit groove 411 and is compressed and abutted between the metal sheet 342 and the groove wall of the limit groove 411.

[0060] In this embodiment, the limit guide unit 340 is composed of a limit gear 341, a metal sheet 342 (such as an iron sheet) and a spring 343. At the same time, a limit groove 411 is opened on the end face of the support frame 400, and one end of the metal sheet 342 is fixed in the limit groove 411 and the other end is extended to the tooth groove of the limit gear 341, so that the metal sheet 342 can always apply resistance to the limit gear 341 in the clockwise or counterclockwise direction to prevent it from rotating, thereby realizing the unidirectional rotation of the handle.

[0061] In order to better understand the technical solution, a possible form is used for auxiliary explanation. For example, when the rotating handle is driven counterclockwise, the limit gear 341 moves in the reverse direction and squeezes the metal sheet 342. At this time, the spring 343 is compressed so that the limit gear 341 can rotate in the reverse direction; and when the rotating handle is driven clockwise, the limit gear 341 moves forward and squeezes the metal sheet 342. At this time, the other end of the metal sheet 342 is pressed by the groove wall of the limit groove 411 without any movable space, so that the limit gear 341 cannot continue to rotate forward. In other words, the rotating handle can only be driven in the reverse direction.

[0062] In other possible implementations, the driving member 330 may also be a motor, and the corresponding end of the rotating portion 311 is directly connected to the output end of the motor.

[0063] As an example, the movement direction of the annular metal screen 200 is the same as the width direction a of the film material.

[0064] In this embodiment, the epoxy metal screen moves along the width direction of the film material. Compared with the movement along the conveying direction b of the film material, the travel of the annular metal screen 200 in the first setting form is shorter, and the distance for the film material dropped onto the annular metal screen 200 to reach the collection point is short, which can achieve efficient conveying and collection of the film material; in addition, the middle area of ​​the annular metal screen 200 in the first setting form is not easy to sag due to its own excessive gravity (that is, the annular metal screen 200 is not easy to contact the upper surface of the lower heating unit 120), which can reduce the operating failure rate of the equipment.

[0065] See also Figure 6 As an example, the horizontal pulling mechanism bellows anti-film hanging device 10b also includes a collecting box 500 for collecting broken films dropped from the annular metal mesh 200. Along the moving direction of the annular metal mesh 200, the collecting box 500 is located below the corresponding end of the annular metal mesh 200.

[0066] It should be noted that, during the startup and operation of the equipment, the annular metal screen 200 moves in one direction so as to transport the broken films that fall onto the upper surface of the annular metal screen 200 to a designated location for collection, which corresponds to the scheme of setting a limit guide unit 340 so that the rotating handle can only rotate in one direction.

[0067] In this embodiment, a collection box 500 is added to the horizontal pulling mechanism bellows anti-film hanging device 10a at one end corresponding to the movement path of the annular metal partition 200, which is used to collect the broken films dropped from the annular metal partition 200, which can effectively solve the problem of broken films being scattered everywhere during the recycling process, and at the same time, can also play the function of temporarily storing broken films.

[0068] It is understandable that, considering the convenience of carrying the collection box 500 , the structure of the collection box 500 may be optimized. For example, a plurality of handles may be provided on the outer side wall of the collection box 500 .

[0069] It is understandable that, considering the positioning accuracy of the collection box 500, in order to accurately collect the broken films that fall from the metal partition net, a positioning groove can be opened in the corresponding area of ​​the collection box 500, and accordingly, a positioning block is set in the corresponding area of ​​the collection box 500 to achieve the positioning of the collection box 500 through the snap-fit ​​cooperation between the two.

[0070] As an example, the outer surface of the annular metal partition 200 is sprayed with a Teflon coating.

[0071] In this embodiment, the outer surface of the annular metal screen 200 is sprayed with Teflon coating, which can reduce the risk of the broken film sticking to the annular metal screen 200 due to its high temperature resistance and low viscosity, thereby facilitating the transportation and collection of the broken film.

[0072] As an example, the specification of the annular metal screen 200 is 5 to 15 meshes, for example but not limited to any one of 5 meshes, 8 meshes, 10 meshes, 12 meshes and 15 meshes or a range between any two of them.

[0073] In this embodiment, a ring-shaped metal screen 200 of specific specifications is used to better balance the functions of collecting broken films and conveying hot air (if the aperture is too small, it is easy to affect the conveying of hot air; if the aperture is too large, the broken films are easy to pass through the holes and fall onto the lower heating unit 120).

[0074] It should be noted that any structure not specifically described or limited in the horizontal pulling mechanism bellows anti-film-hanging device 10b can be arranged according to conventional selections in the art.

[0075] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A horizontal pulling mechanism bellows anti-film hanging device, characterized in that: include: A heating assembly, the heating assembly comprising an upper heating unit and a lower heating unit which are opposite to each other and spaced apart from each other, and a heating channel for the film material to pass through is formed between the upper heating unit and the lower heating unit; an annular metal partition, the annular metal partition is located in the heating channel and at a side close to the lower heating unit, and the annular metal partition is configured to cover the top end surface of the lower heating unit; A driving assembly, wherein the driving assembly is drivingly connected to both ends of the annular metal screen, so that the annular metal screen can move along the width direction of the film material or the conveying direction of the film material; as well as A support frame is located below the driving assembly and is rotatably connected to the driving assembly, and is used to support the driving assembly.

2. The horizontal pulling mechanism bellows anti-film hanging device according to claim 1 is characterized in that: The driving assembly includes a first rotating rod, a second rotating rod and a driving member. Along the movement direction of the annular metal partition, the two rotating rods are spaced apart on both sides of the lower heating unit and are respectively connected to the two ends of the annular metal partition in a transmission manner. The end of the first rotating rod is connected to the driving member, and the driving member is configured to drive the first rotating rod to rotate so as to drive the annular metal partition to move. The support frame is located below the driving assembly and is rotatably connected to the two rotating rods respectively.

3. The horizontal pulling mechanism bellows anti-film hanging device according to claim 2 is characterized in that: The first rotating rod includes a rotating part and a fixed part rotatably mounted on both ends of the rotating part. The rotating part is located in an area between the two fixed parts and is transmission-connected to the end of the annular metal partition. One end of the rotating part is transmission-connected to the driving member to drive the annular metal partition to move. The support frame is located below the first rotating rod and is respectively connected to the two fixed parts.

4. The horizontal pulling mechanism bellows anti-film hanging device according to claim 3 is characterized in that: The outer sleeve of the rotating part is provided with a gear which can move synchronously with the rotating part, and the rotating part is transmission-connected with the end of the annular metal partition net through the gear.

5. The horizontal pulling mechanism bellows anti-film hanging device according to claim 4, characterized in that: The driving member is a rotating handle, and the driving assembly further comprises a limiting guide unit, which is connected to the rotating handle and is configured to enable the rotating handle to rotate in one direction.

6. The horizontal pulling mechanism bellows anti-film hanging device according to claim 5, characterized in that: The limit guide unit includes a limit gear, a metal sheet and a spring. The limit gear is sleeved on the connecting rod of the rotating handle. The support frame is provided with a limit groove on the end face close to the driving assembly. One end of the metal sheet is embedded in the limit groove, and the other end of the metal sheet extends to the tooth groove of the limit gear. The spring is located in the limit groove and is compressed and abutted between the metal sheet and the groove wall of the limit groove.

7. The anti-film-hanging device of the bellows of the horizontal pulling mechanism according to any one of claims 1 to 6, characterized in that: The movement direction of the annular metal screen is the same as the width direction of the film material.

8. The horizontal pulling mechanism bellows anti-film hanging device according to claim 7, characterized in that: The horizontal pulling mechanism bellows anti-film hanging device also includes a collecting box for collecting broken films dropped from the annular metal partition. Along the moving direction of the annular metal partition, the collecting box is located below the corresponding end of the annular metal partition.

9. The horizontal pulling mechanism bellows anti-film hanging device according to any one of claims 1 to 6, characterized in that: The outer surface of the annular metal partition is sprayed with Teflon coating.

10. The bellows anti-film-hanging device of the horizontal pulling mechanism according to any one of claims 1 to 6, characterized in that: The specification of the annular metal separator is 5 to 15 meshes.

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