Hopper structure of film blowing machine and film blowing machine

Abstract

The utility model provides a hopper structure of a film blowing machine and the film blowing machine, and belongs to the technical field of film blowing machines. The hopper structure comprises a feeding bin, a distributing bin and at least one discharging assembly, and the feeding bin is used for being connected with a feeding opening of the film blowing machine; the distributing bin is arranged on the feeding bin and provided with at least two feeding bin bodies, each feeding bin body is correspondingly provided with a distributing opening communicated with the feeding bin, at least one discharging assembly comprises a supporting piece correspondingly arranged in the feeding bin body, a blocking part is constructed at the end, facing the distributing opening, of the supporting piece, and the supporting piece is configured to reciprocate under the action of external force. And the blocking part is used for periodically closing or opening the material distributing opening. According to the hopper structure provided by the invention, the material distributing opening is periodically closed or opened by utilizing the discharging assembly, so that excessive material falling at one time can be avoided, the uniform distribution and full mixing of materials and color master batches can be ensured, and the material mixing efficiency is improved.

Description

Technical Field

[0001] The present application relates to film blowing machine technology, and in particular to a hopper structure of a film blowing machine and a film blowing machine. Background Art

[0002] A film blowing machine is a device that heats and melts plastic raw materials and then blows them into thin films. It is widely used in the packaging material manufacturing industry. There are many types of films blown out by film blowing machines, including polyethylene, polybutylene adipate / terephthalate, and polyamide. Film blowing machines can produce films with different properties according to different needs.

[0003] According to the packaging requirements of different industries and products, appropriate amounts of masterbatch or pigment can be mixed evenly with plastic raw materials according to the required color to form film blowing raw materials. The film blowing raw materials are fed into the heating system of the film blowing machine and heated to the melting point by electric heating wire or gas to melt and mix them, so that the produced film has a specific color.

[0004] However, masterbatch and plastic raw materials are prone to uneven distribution in the feed hopper during mixing, resulting in a long mixing time and easily causing quality defects such as color spots on the finished film. Utility Model Content

[0005] The present application provides a hopper structure of a film blowing machine and a film blowing machine, which are used to solve the technical problem in the related art that the film blowing machine is prone to uneven distribution in the feed hopper during the mixing process, resulting in a long stirring and mixing time.

[0006] In one aspect, the present application provides a hopper structure for a film blowing machine, comprising:

[0007] Feeding bin, used to connect with the feeding port of film blowing machine;

[0008] A material distribution bin is provided on the feeding bin, and the material distribution bin has at least two feeding bin bodies, and each of the feeding bin bodies is provided with a material distribution port connected to the feeding bin;

[0009] At least one unloading component includes a support member corresponding to the feed bin body, and the support member is configured with a blocking portion at one end facing the distribution port. The support member is configured to move back and forth under the action of an external force so that the blocking portion periodically closes or opens the distribution port.

[0010] In a possible implementation, the method further includes:

[0011] A partition plate is provided in the sub-bin to separate the sub-bin into the feed bin body;

[0012] The mounting bracket is arranged on the partition plate. The mounting bracket is provided with a driving member. The driving member is transmission-connected with the supporting member to drive the supporting member to move back and forth in a vertical direction.

[0013] In a possible embodiment, a rotating shaft is rotatably connected to the mounting bracket, and the rotating shaft is in transmission connection with the driving member;

[0014] The blanking assembly further includes a lifting connecting plate, which is connected to the rotating shaft so as to be displaced in a vertical direction under the drive of the rotating shaft, and the support member is provided on the lifting connecting plate.

[0015] In a possible embodiment, two opposite sides of the lifting connecting plate are respectively connected to a supporting member, and each supporting member is located in one of the feeding bins.

[0016] In a possible embodiment, the bottom of the feed bin body has a feeding channel connected to the material distribution port, and the blocking portion of the support member can enter the feeding channel to close the material distribution port; the height of the support member on the lifting connecting plate is adjustable.

[0017] In a possible implementation, the method further includes:

[0018] A stirring rod is fixedly connected to the rotating shaft and rotates coaxially with the rotating shaft, and the stirring rod is located in the feeding bin;

[0019] Wherein, a spiral feeding blade is constructed at the bottom of the stirring rod, and the spiral feeding blade is used to guide the material to be output from the feeding bin.

[0020] In a possible embodiment, the side wall of the partition plate is configured with a guide portion, and the support member is configured with a clamping portion on the side facing the partition plate, and the clamping portion is engaged with the guide portion to form a sliding connection between the support member and the partition plate.

[0021] In a possible implementation manner, the blocking portion is a baffle bent relative to the support member.

[0022] In a possible implementation manner, the bottom of the distribution bin is embedded in the feeding bin.

[0023] On the other hand, the present application provides a film blowing machine, comprising an equipment body and a hopper structure of the film blowing machine as described in any one of the above items, wherein the hopper structure is connected to a feeding port of the equipment body.

[0024] The present application provides a hopper structure of a film blowing machine and a film blowing machine. The hopper structure of the film blowing machine is provided with a distribution bin, and the distribution bin has at least two feeding bin bodies. Different materials are respectively put into different feeding bin bodies. The provided support members move back and forth under the action of external force, so that the blocking part periodically closes or opens the distribution port. Thus, the materials placed in different feeding bin bodies are intermittently put into the feeding bin, preventing the problem of too much material being dropped at one time and unable to be mixed evenly; in addition, the intermittent feeding of the distribution port can avoid the problem of accumulation and blockage caused by excessive material in the feeding bin, effectively ensuring the normal discharge work. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0026] Figure 1 This is a schematic diagram of the overall structure of the film blowing machine in the embodiment of the present application;

[0027] Figure 2 A three-dimensional diagram of the hopper structure of the film blowing machine in an embodiment of the present application;

[0028] Figure 3 for Figure 2 sectional view of

[0029] Figure 4 This is a structural schematic diagram of the discharge assembly in the hopper structure of the film blowing machine according to an embodiment of the present application;

[0030] Figure 5 This is a structural diagram of the sub-bin in the hopper structure of the film blowing machine in an embodiment of the present application.

[0031] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.

[0032] Description of Reference Numerals

[0033] 100. Equipment body; 101. Feeding bin;

[0034] 200, material distribution bin; 201, material feeding bin body; 202, material feeding channel; 203, support member; 204, blocking portion; 205, lifting connecting plate; 206, mounting bracket; 207, first transmission wheel; 208, rotating shaft; 209, driving member; 210, second transmission wheel; 211, transmission belt; 212, adjustment slot; 213, guide portion; 214, clamping portion; 215, threaded hole;

[0035] 300, stirring rod; 301, stirring blade; 302, spiral feeding blade;

[0036] 400, threaded seat; 401, threaded rod; 402, socket. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below in conjunction with the drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals throughout represent the same or similar parts or parts with the same or similar functions. The described embodiments are part of the embodiments of the present application, not all of the embodiments. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain the present application, and should not be understood as limitations on the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of the present application are described in detail below in conjunction with the drawings.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to a fixed connection, an indirect connection via an intermediate medium, internal communication between two components, or an interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0039] In the description of this application, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. 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 direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0040] The terms "first," "second," "third," "fourth," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the application described herein can, for example, be implemented in an order other than that illustrated or described herein.

[0041] In addition, the terms "comprises" and "having" and any variations thereof are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or apparatus that includes a series of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, product or apparatus.

[0042] As mentioned in the background, the film blowing machine's hopper typically pours raw material, which is heated and melted before the film blowing process. Depending on the packaging needs of different industries and products, an appropriate amount of masterbatch or pigment is mixed with the plastic raw material to create the desired color. This mixed material is then fed into the film blowing machine's heating system, where it is heated to its melting point by electric heating wires or gas, melting and mixing the raw material to produce a film with a specific color.

[0043] However, masterbatch and plastic raw materials are prone to uneven distribution in the feed hopper during mixing, resulting in a long mixing time and easily causing quality defects such as color spots on the finished film, affecting the appearance quality.

[0044] Based on the above relevant description, one or more embodiments of the present application provide a hopper structure of a film blowing machine and a film blowing machine. In the hopper structure, a distribution bin is used to separate the initial feeding types of the material, and the provided support member is moved back and forth under the action of an external force, so that the displaced blocking part periodically closes or opens the distribution port. Thus, the materials placed in different feed bins are intermittently fed into the feed bin to prevent the problem of too much material being dropped at one time and unable to be mixed evenly; in addition, the intermittent feeding of the distribution port can avoid the problem of accumulation and blockage caused by excessive material in the feed bin, effectively ensuring the normal discharge of the material.

[0045] The hopper structure in the embodiment of the present application is described below with reference to the accompanying drawings.

[0046] like Figures 1 to 5 As shown, an embodiment of the present application provides a hopper structure of a film blowing machine, including a feeding bin 101, a distribution bin 200 and at least one unloading component.

[0047] The feeding bin 101 is used to be connected to the feeding port of the film blowing machine. The distribution bin 200 is arranged on the feeding bin 101. The distribution bin 200 has at least two feeding bin bodies 201. Each feeding bin body 201 is respectively provided with a distribution port connected to the feeding bin 101; at least one unloading component includes a support member 203 arranged in the feeding bin body 201, and the support member 203 is configured with a blocking portion 204 at one end facing the distribution port. The support member 203 is configured to move back and forth under the action of external force so that the displaced blocking portion 204 periodically closes or opens the distribution port.

[0048] It can be seen from the above description that in the embodiment of the present application, the hopper structure is divided into a feeding bin 101 and a distribution bin 200. The two feeding bin bodies 201 separated in the distribution bin 200 can be used to put masterbatches and plastic raw materials respectively. Due to the unloading component provided in the feeding bin body 201, the distribution port is intermittently opened or closed, and the masterbatches or plastic raw materials are intermittently fed into the feeding bin 101 for subsequent mixing and stirring, which can avoid the problem of too much material being discharged at one time and unable to be mixed evenly; in addition, the intermittent feeding of the distribution port can avoid the problem of accumulation and blockage of too much material in the feeding bin 101, which is conducive to reducing the stirring time and ensuring the normal discharge work.

[0049] like Figure 1 As shown, in the embodiment of the present application, the hopper structure is arranged on the equipment body 100 of the film blowing machine, and the equipment body 100 has a feeding port, the discharge end of the feeding bin 101 is connected to the feeding port, and the feeding port of the feeding bin 200 is connected to the feeding end of the feeding bin 101. Figure 1 In the apparatus, the sub-bin 200 is located above the feeding bin 101. Raw materials such as masterbatch and plastic raw materials can enter the equipment body 100 through the sub-bin 200 and the feeding bin 101 in sequence under the action of gravity for subsequent film blowing process.

[0050] like Figure 2 As shown, in some embodiments, the hopper structure further includes a divider plate and a mounting bracket 206 .

[0051] Among them, a partition plate is arranged in the distribution bin 200 to separate the distribution bin 200 into two feeding bin bodies 201; the mounting bracket 206 is arranged on the partition plate, and a driving member 209 is provided on the mounting bracket 206. The driving member 209 is connected to the support member 203 in a transmission manner to drive the support member 203 to move back and forth along the height direction.

[0052] The aforementioned distribution bin 200 is specifically a cylindrical bin body, and the partition plate evenly divides the distribution bin 200, ensuring that the dimensions of the two feed bin bodies 201 are equal. Exemplarily, the mounting bracket 206 is a U-shaped bracket, bolted or welded to the top of the partition plate. The mounting bracket 206 provides a mounting base for the blanking assembly and the drive member 209. Furthermore, the exposed mounting bracket 206 on the partition plate facilitates timely adjustment and maintenance of the blanking assembly.

[0053] Of course, there may be more than two feed bins, which is only illustrated by way of example in the embodiments of the present application.

[0054] like Figure 3As shown, in the embodiment of the present application, a rotating shaft 208 is rotatably connected to the mounting bracket 206, and the rotating shaft 208 is transmission-connected to the driving member 209; the blanking assembly also includes a lifting connecting plate 205, which is threadedly connected to the rotating shaft 208 so as to be displaced in the vertical direction under the drive of the rotating shaft 208, and the support member 203 is arranged on the lifting connecting plate 205.

[0055] Specifically, the driving member 209 is a driving motor, the output end of which is fixedly connected to a second transmission wheel 210. The end of the rotating shaft 208 is fixedly connected to the first transmission wheel 207. The first transmission wheel 207 and the second transmission wheel 210 are synchronously connected via a transmission belt 211, so that the driving motor drives the rotating shaft 208 to rotate. Here, the first rotating wheel and the rotating shaft 208, and the second rotating wheel and the output end of the driving motor can be connected by a key, which is only illustrative in the present embodiment.

[0056] The lifting connecting plate 205 is provided with a threaded hole 215, through which the rotating shaft 208 is inserted, thereby forming a threaded connection between the rotating shaft 208 and the lifting connecting plate 205. For example, when the rotating shaft 208 rotates in the forward direction, the lifting connecting plate 205 rises, and when the rotating shaft 208 rotates in the reverse direction, the lifting connecting plate 205 descends. This also shows that the drive motor is a motor capable of both forward and reverse rotation, which will not be further described in the present embodiment.

[0057] Furthermore, a feeding channel 202 communicating with the material distribution port is provided at the bottom of the feeding bin body 201 , and the blocking portion 204 of the support member 203 is located in the feeding channel 202 ; the height of the support member 203 on the lifting connecting plate 205 is adjustable.

[0058] Depend on Figure 3 It can be seen that the bottom end of the distribution bin 200 in the embodiment of the present application gradually shrinks into a conical shape. When the blocking portion 204 of the support member 203 is located in the feeding channel 202, the distribution opening is blocked. When the blocking portion 204 rises with the support member 203 and is separated from the feeding channel, the distribution opening is opened, and the raw material in the feeding bin body 201 falls into the feeding bin 101 through the distribution opening. Specifically, the support member 203 is a plate-shaped member, and the blocking portion 204 is a baffle bent relative to the support member 203. The size of the feeding channel is roughly equivalent to that of the blocking portion 204, so that the blocking portion 204 can cover the feeding channel.

[0059] For example, Figure 4As shown, the lifting connecting plate 205 is provided with an adjustment groove 212 for inserting the support member 203, and a threaded seat 400 is welded and fixed on one side of the lifting connecting plate 205. The support member 203 is provided with a plurality of sockets 402 at intervals along its own length direction. The support member 203 is fixed to the lifting connecting plate 205 by a threaded rod 401 that passes through the threaded seat 400 and the socket 402.

[0060] When it is necessary to adjust the height of the support member 203 on the lifting connecting plate 205, unscrew the threaded rod 401 to release the fixed state of the support member 203 and the lifting connecting plate 205. After readjusting the height of the support member 203, screw the threaded rod 401 into the socket 402 at the current position of the support member 203 again.

[0061] The height of the support member 203 on the lifting connecting plate 205 is adjustable, which can change the height of the blocking part 204 of the support member 203 accordingly, so that the blocking part 204 can enter or exit the feed channel faster, or enter or exit the feed channel later. This setting can adjust the opening or closing frequency and duration of the distribution port, thereby adjusting the amount of raw material falling from the feed channel into the feeding bin 101, and more flexibly adjusting the input ratio of the raw material according to production needs. In addition, the height-adjustable design of the support member 203 can also facilitate the input of raw materials of particles of different sizes, and has strong versatility.

[0062] In some embodiments, a support member 203 is connected to opposite sides of the lifting connecting plate 205, and each support member 203 is located in a feed bin 201. Here, each support member 203 can be set with reference to the connection and installation method of the support member 203 and the lifting connecting plate 205 described above, which will not be repeated in the embodiments of the present application.

[0063] By providing a support member 203 in each feed bin 201, the two feed bins 201 can more conveniently adjust the amount and frequency of the raw materials falling in. The separately provided support members 203 can also be adjusted in height separately, thereby allowing staff to independently control the unloading process of each feed bin 201 and achieve more accurate material ratio and flow management.

[0064] like Figure 4 and Figure 5 As shown, the side wall of the partition plate in the embodiment of the present application is constructed with a guide portion 213, and the side of the support member 203 facing the partition plate is constructed with a snap-fit ​​portion 214, which cooperates with the guide portion 213 to form a sliding connection between the support member 203 and the partition plate.

[0065] Exemplarily, the guide portion 213 is a T-shaped slot provided on the side wall of the partition plate, and the clamping portion 214 is a T-shaped block provided on one side of the support member 203. The T-shaped block is clamped and limited in the T-shaped slot. The clamping fit between the clamping portion 214 and the guide portion 213 does not affect the vertical displacement of the support member 203, but limits the support member 203 from separating from the partition plate. This setting can ensure the smooth sliding of the support member 203 on the partition plate, thereby enhancing the stability of the lifting and lowering displacement of the support member 203.

[0066] It should be noted that, in the above embodiment, the socket 402 on the support member and the threaded rod 401 can be connected by threaded fitting, or can be directly penetrated and fixed. When the threaded rod 401 directly penetrates the socket 402, the support member 203 is firmly fixed on the lifting connecting plate 205 through the snap-fit ​​fitting of the guide portion 213 and the snap-fit ​​portion 214.

[0067] like Figure 3 As shown, in some embodiments, the hopper structure of the film blowing machine also includes a stirring rod 300, which is fixedly connected to the rotating shaft 208 and rotates coaxially with the rotating shaft 208. The stirring rod 300 is located in the feeding bin 101; wherein, the bottom of the stirring rod 300 is constructed with a spiral feeding blade 302, and the spiral feeding blade 302 is used to guide the material to be output from the feeding bin 101.

[0068] The stirring rod 300 and the rotating shaft 208 can be integrally formed. The stirring rod 300 rotates synchronously with the rotation of the rotating shaft 208. The bottom of the feeding bin 101 gradually shrinks into a cone shape. The stirring rod 300 is respectively fixed with a stirring blade 301 and a spiral feeding blade 302, wherein the stirring blade 301 is located above the spiral feeding blade 302, and the spiral feeding blade 302 is arranged near the discharge end of the feeding bin 101. After the raw material enters the feeding bin 101, it is first stirred and mixed evenly by the stirring blade 301, and then transported and guided into the feeding port of the film blowing machine by the spiral feeding blade 302 for the subsequent film blowing process. The provision of the stirring blade 301 can ensure that the mixed material in the feeding bin 101 is mixed and stirred evenly, and the spiral feeding blade 302 can further accelerate the transportation of the mixed mixed material into the feeding port.

[0069] like Figure 3 As shown, since the bottom of the distribution bin 200 gradually shrinks into a cone shape, the bottom of the distribution bin 200 can be embedded in the upper end of the feeding bin 101. This design makes the connection between the feeding bin 101 and the distribution bin 200 more compact, saving installation space, and the embedded design of the distribution bin 200 enhances the supporting stability of the connection between the two, further avoiding the distribution bin 200 from shaking or shifting during the blanking process, thereby improving the overall stability of the film blowing machine.

[0070] Of course, the material falling into the feed bin 201 in the embodiment of the present application can be the aforementioned masterbatch or plastic raw material, or other different materials that need to be mixed and stirred, and there is no absolute limitation on this.

[0071] An exemplary use process of the hopper structure of the film blowing machine in the embodiment of the present application is as follows:

[0072] When in use, the plastic raw materials required for film blowing and the masterbatch for dyeing are poured into the two feeding bins 201 respectively, so that they fall into their respective feeding channels. At this time, the distributing port at the end of the feeding channel is blocked by the blocking portion 204, and the plastic raw materials and masterbatch cannot be discharged. The driving member 209 is opened to drive the second transmission wheel 210 to rotate. The rotating second transmission wheel 210 drives the first transmission wheel 207 to rotate through the transmission cooperation of the transmission belt 211. The first transmission wheel 207 drives the rotating shaft 208 to rotate on the mounting bracket 206. The rotating shaft 208 drives the lifting connecting plate 205 to reciprocate vertically through the threaded cooperation with the threaded hole 215. When the lifting connecting plate 205 descends, it drives the support member 203 to descend. The support member 203 drives the blocking portion 204 to disengage the feeding channel, open the distributing port, and allow the plastic raw materials and masterbatch to fall into the feeding bin 101. When the blocking portion 204 falls, it resets and closes the distributing port. This reciprocating process can make the materials intermittently fall into the feeding bin 101.

[0073] In another embodiment of the present application, a film blowing machine is provided, which includes an equipment body 100 and a hopper structure of the film blowing machine in any of the above embodiments, wherein the hopper structure is connected to a feeding port of the equipment body 100 .

[0074] Since the film blowing machine includes the above hopper structure, it has all the advantages of the hopper structure.

[0075] In addition, it should be noted that the device body 100 in the embodiment of the present application can refer to the relevant components required for film blowing by the film blowing machine in the related art, and no further details will be given.

[0076] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, and the true scope and spirit of the present application are indicated by the following claims.

[0077] It should be understood that the present application is not limited to the exact structure described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. A hopper structure of a film blowing machine, characterized in that: include: A feeding bin (101) is used to be connected to a feeding port of a film blowing machine; A material distribution bin (200) is provided on the feeding bin (101), the material distribution bin (200) having at least two feeding bin bodies (201), each of the feeding bin bodies (201) being provided with a material distribution port communicating with the feeding bin (101); At least one material discharge assembly comprises a support member (203) correspondingly arranged in the feed bin body (201), wherein one end of the support member (203) facing the material distribution opening is provided with a blocking portion (204), and the support member (203) is configured to move back and forth under the action of an external force so that the blocking portion (204) periodically closes or opens the material distribution opening.

2. The hopper structure of the film blowing machine according to claim 1, characterized in that: Also includes: A partition plate is provided in the sub-bin (200) to separate the sub-bin (200) into the respective feed bin bodies (201); A mounting bracket (206) is provided on the partition plate. A driving member (209) is provided on the mounting bracket (206). The driving member (209) is in transmission connection with the support member (203) to drive the support member (203) to move back and forth in a vertical direction.

3. The hopper structure of the film blowing machine according to claim 2, characterized in that: A rotating shaft (208) is rotatably connected to the mounting bracket (206), and the rotating shaft (208) is transmission-connected to the driving member (209); The blanking assembly further comprises a lifting connecting plate (205), wherein the lifting connecting plate (205) is connected to the rotating shaft (208) so as to be displaced in a vertical direction under the drive of the rotating shaft (208), and the support member (203) is provided on the lifting connecting plate (205).

4. The hopper structure of the film blowing machine according to claim 3, characterized in that: Two opposite sides of the lifting connection plate (205) are respectively connected to a support member (203), and each support member (203) is located in a feed bin body (201).

5. The hopper structure of the film blowing machine according to claim 3, characterized in that: The bottom of the feed bin (201) has a feeding channel (202) connected to the material distribution opening, and the blocking portion (204) of the support member (203) can enter the feeding channel (202) to close the material distribution opening; the height of the support member (203) on the lifting connecting plate (205) is adjustable.

6. The hopper structure of the film blowing machine according to claim 3, characterized in that: Also includes: a stirring rod (300) fixedly connected to the rotating shaft (208) and coaxially rotating with the rotating shaft (208); the stirring rod (300) is located in the feeding bin (101); The bottom of the stirring rod (300) is provided with a spiral feeding blade (302), and the spiral feeding blade (302) is used to guide the material to be output from the feeding bin (101).

7. The hopper structure of the film blowing machine according to any one of claims 2 to 6, characterized in that: The side wall of the partition plate is configured with a guide portion (213), and the support member (203) is configured with a clamping portion (214) on one side facing the partition plate. The clamping portion (214) is engaged with the guide portion (213) to form a sliding connection between the support member (203) and the partition plate.

8. The hopper structure of the film blowing machine according to any one of claims 1 to 6, characterized in that: The blocking portion (204) is a baffle bent relative to the supporting member (203).

9. The hopper structure of the film blowing machine according to any one of claims 1 to 6, characterized in that: The bottom of the distribution bin (200) is embedded in the feeding bin (101).

10. A film blowing machine, characterized in that: The invention comprises an equipment body (100) and a hopper structure of the film blowing machine according to any one of claims 1 to 9, wherein the hopper structure is connected to a feeding port of the equipment body (100).

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