A biodegradable material blown film apparatus

Abstract

The application belongs to the technical field of film blowing equipment, and discloses a biodegradable material film blowing equipment, which comprises a melting film blowing core assembly, wherein the melting film blowing core assembly comprises an equipment assembly support, a degradation material film blowing host is fixedly connected to the inner end of the equipment assembly support, and a film material guiding frame is fixedly connected to the inner end of the equipment assembly support and located above the degradation material film blowing host. Through the structural cooperation of the artificial film pulling auxiliary assembly, the electric winding device, the connecting rope body, the metal clamping block and the herringbone guide frame, the operator controls the metal clamping block to clamp the film material through the clamping holding plate, the metal clamping block is automatically closed by means of the self-rebound hinge, the connecting rope body is driven to pull the film material upward by the electric winding device, and the connecting rope body is guided by the uppermost end of the multi-roller guide plate, so that the artificial film pulling action is effectively assisted, the physical input of the operator is greatly reduced, and the problems of laborious and low efficiency of artificial film pulling in the prior art are solved.

Description

Technical Field

[0001] This invention belongs to the field of blown film equipment technology, specifically a blown film equipment for biodegradable materials. Background Technology

[0002] Existing biodegradable material blown film equipment is mainly used to process biodegradable raw materials such as PLA, PBAT, and starch-based materials into degradable films through processes such as melting, extrusion, blown film, traction, and winding. It is primarily adapted to the production needs of degradable products such as food packaging, agricultural mulch film, and garbage bags. It can be divided into various models according to the degree of automation, production scale, and structural configuration.

[0003] For example, a biodegradable material blown film main unit disclosed in CN108422648B includes a biodegradable material blown film main unit bubble inflation device, a contact heater, and a pressure powder spraying ring. A bidirectional negative pressure ring is rotatably connected above the biodegradable material blown film main unit bubble inflation device. The bidirectional negative pressure ring includes an upper ring plate and a lower ring plate. Several powder blowing blades that guide the airflow upward are fixed on the upper ring plate, and several suction blades that guide the airflow downward are fixed on the lower ring plate. A heating plate that separates the airflow generated by the powder blowing blades from the airflow generated by the suction blades is fixed between the upper ring plate and the lower ring plate. The heater is in contact with the heating plate. The pressure powder spraying ring is located above the heating plate. Several powder spraying nozzles are provided below the pressure powder spraying ring. The powder spraying nozzles are evenly distributed in the lower part of the pressure powder spraying ring. A sealing plate for sealing the powder spraying nozzles is hinged on the pressure powder spraying ring. The end of the sealing plate away from the powder spraying nozzle can abut against the rotating powder blowing blades. This device solves the problem of low production efficiency caused by the need to stop the machine to clean the powder spraying nozzles in the prior art.

[0004] While the above solution addresses the issue of low production efficiency caused by the need for machine shutdown to clean the powder spray nozzle in existing technologies, small and micro enterprises in the field of biodegradable material blown film processing often use semi-automatic, manually assisted blown film equipment due to limitations in funds, space, and production scale. Such equipment lacks effective film-lifting auxiliary structures, and the manual film-lifting process relies entirely on manual operation. In actual production, operators must manually pull the molten film from the outlet of the biodegradable material blown film machine. Furthermore, because the film needs to be kept stable during the lifting process, it is difficult for a single operator to complete the entire lifting operation. Therefore, multiple groups of personnel are needed to work together to lift the film upwards until it is guided to the herringbone guide frame and the film conveying rollers. The entire film-lifting process not only consumes a lot of physical strength from the operators, but also makes it easy for coordination errors to occur when multiple groups of personnel work together, further leading to low operating efficiency. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a biodegradable material blown film device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a biodegradable material blown film device, comprising a melt blown film core component, the melt blown film core component comprising a device assembly support, a biodegradable material blown film host fixedly connected to the lower inner end of the device assembly support, a film material guide frame fixedly connected to the inner end of the device assembly support above the biodegradable material blown film host, a herringbone guide frame fixedly connected to the inner end of the device assembly support above the film material guide frame, a film material conveying guide roller fixedly connected to the inner end of the device assembly support above the herringbone guide frame, and a device climbing ladder frame symmetrically fixedly connected to both sides of the device assembly support; and further comprising a manual film pulling auxiliary component for assisting manual film pulling. The manual film-pulling auxiliary component includes an electrical winder fixedly connected to one side of the equipment assembly support for automatic film-pulling. The outer end of the electrical winder is wound with a connecting rope that transmits the lifting force. A metal clamping block for holding the film material is fixedly connected to one end of the connecting rope near the biodegradable material blown film host. An internal toothed material contact layer is fixedly connected to the inner side wall of the metal clamping block. A clamping gripping plate for controlling the opening and closing of the metal clamping block is fixedly connected to one end of the metal clamping block. A self-rebound hinge is fitted at the rotational connection position of the metal clamping block.

[0007] Preferably, the inner tooth contact layer is made of rubber, and the surface of the inner tooth contact layer is provided with uniformly distributed serrated anti-slip texture.

[0008] Preferably, a magnetic temporary plate located on one side of the electrical winder is fixedly connected to the upper end of the equipment assembly bracket, and the magnetic temporary plate is magnetically connected to one side of the metal clamping block.

[0009] Preferably, a film waste storage frame is fixedly connected to the lower end of the magnetic temporary placement plate, and the film waste storage frame is used to collect the cut film waste.

[0010] Preferably, the herringbone guide frame consists of two symmetrically arranged multi-roller guide plates, and the included angle of the guide plates can be adjusted between 15 and 30 degrees.

[0011] Preferably, the connecting rope is made of high-strength nylon rope, and the multi-roller guide plate at the uppermost end cooperates with the connecting rope to achieve stable lifting and guiding of the connecting rope.

[0012] Preferably, the upper end of the metal clamping block is provided with a waste removal component, which includes a cutting support protrusion fixedly connected to one side of the upper end of the metal clamping block.

[0013] Preferably, the upper end of the cutting support protrusion is fixedly connected to a blade guide rail plate, and a cutting blade is installed at the output end of the blade guide rail plate, and the cutting blade can reciprocate horizontally along the blade guide rail plate.

[0014] Preferably, a cutting positioning plate is fixedly connected to the other side of the upper end of the metal clamping block, and the upper surface of the cutting positioning plate is in contact with the cutting edge of the cutting blade.

[0015] Preferably, the winding roller of the electrical winder has a cylindrical structure, and the electrical winder is detachably fixed to the equipment assembly bracket by stainless steel bolts, which can be used to adapt to equipment assembly brackets of different heights.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a structure that integrates a manual film-pulling auxiliary component, an electrical winder, a connecting rope, a metal clamping block, and a herringbone guide frame. Operators control the metal clamping block to hold the film material via a clamping grip plate. The metal clamping block automatically closes using a self-rebound hinge. The electrical winder then winds up the connecting rope, pulling the film material upwards. Simultaneously, a multi-roller guide plate at the top guides the connecting rope, effectively assisting manual film-pulling and significantly reducing the operator's physical exertion. This solves the problems of laborious and inefficient manual film-pulling in existing technologies. This invention, through the structural cooperation of a waste removal component, a cutting blade, and a cutting positioning plate, allows the cutting blade and the cutting positioning plate to precisely cut the large clump of film material at the top, ensuring that the film material smoothly passes through the herringbone guide frame and the film material conveying rollers, reducing film material loss and improving the quality of film material production. This invention utilizes a combination of a magnetic temporary placement plate and a waste film storage frame. The magnetic temporary placement plate allows for the magnetic placement of metal clamping blocks, improving operational convenience. The waste film storage frame collects cutting waste in a centralized manner, preventing waste from scattering and affecting the equipment's operating environment. Additionally, the electrical winding device features a detachable connection, adaptable to equipment assembly brackets of different heights, enhancing the equipment's versatility and practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the blown film equipment of the present invention; Figure 2 This is a schematic diagram of the core component structure of the melt blown film of the present invention; Figure 3 This is a schematic diagram of the structure of the biodegradable material blown film main unit of the present invention; Figure 4 This is a schematic diagram of the structure of the manual membrane removal auxiliary component of the present invention; Figure 5 This is a schematic diagram of the waste removal component structure of the present invention; Figure 6 This is a partially truncated enlarged structural diagram of the device assembly bracket of the present invention.

[0018] In the diagram: 1. Core component of melt blown film; 100. Equipment assembly support; 101. Degradable material blown film main unit; 102. Film material guide frame; 103. A-frame guide; 104. Film material conveying guide roller; 105. Equipment climbing ladder; 2. Manual film pulling auxiliary component; 200. Electrical winding device; 201. Connecting rope; 202. Metal clamping block; 203. Internal tooth contact layer; 204. Clamping gripping plate; 205. Self-rebound hinge; 206. Film material waste storage frame; 207. Magnetic temporary placement plate; 3. Waste removal component; 300. Cutting support protrusion; 301. Blade guide rail plate; 302. Cutting blade; 303. Cutting positioning plate. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figures 1 to 6 As shown, the present invention provides a biodegradable material blown film equipment, including a melt blown film core component 1. The melt blown film core component 1 includes an equipment assembly support 100 for supporting the entire equipment and ensuring the stability of equipment operation. A biodegradable material blown film host 101 for extruding biodegradable raw materials into a film is fixedly connected to the lower inner end of the equipment assembly support 100. A film material guide frame 102 located above the biodegradable material blown film host 101 is fixedly connected to the inner end of the equipment assembly support 100 for initially limiting and guiding the film material extruded by the biodegradable material blown film host 101. A herringbone guide frame 103 located above the film material guide frame 102 is fixedly connected to the inner end of the equipment assembly support 100 for flattening the film bubble and guiding the film material upward. A film material conveying guide roller 104 located above the herringbone guide frame 103 is fixedly connected to the inner end of the equipment assembly support 100 for guiding the flattened film material to be smoothly conveyed to the subsequent process. Equipment climbing ladder frames 105 are symmetrically fixedly connected to both sides of the equipment assembly support 100.

[0021] The above solution is adopted: the equipment assembly support 100 adopts a frame structure and is made of high-strength steel. The biodegradable material blown film host 101, the film material guide frame 102, the herringbone guide frame 103, and the film material conveying guide roller 104 are all in the same vertical working plane, ensuring that the film material extruded by the biodegradable material blown film host 101 can be conveyed vertically upward and smoothly pass through the limiting area of ​​the film material guide frame 102, the flattening structure of the herringbone guide frame 103, and the guiding range of the film material conveying guide roller 104 in sequence, ensuring the smoothness of the entire process from extrusion to subsequent conveying of the film material.

[0022] like Figures 2 to 6 As shown, it also includes a manual film-pulling auxiliary component 2 for assisting manual film pulling and reducing the manual lifting load. The manual film-pulling auxiliary component 2 includes an electrical winder 200 fixedly connected to one side of the equipment assembly support 100 for realizing automatic film lifting action. The outer end of the electrical winder 200 is wound with a connecting rope 201 for transmitting the lifting force. The end of the connecting rope 201 near the biodegradable material blown film host 101 is fixedly connected to a metal clamping block 202 for clamping the film material. The inner sidewall of the metal clamping block 202 is fixedly connected with internal teeth. The contact layer 203 and the metal clamping block 202 are fixedly connected at one end to a clamping gripping plate 204 that controls the opening and closing of the metal clamping block 202. The rotating connection position of the metal clamping block 202 is equipped with a self-rebound hinge 205. The inner tooth contact layer 203 is made of rubber and the surface of the inner tooth contact layer 203 is provided with evenly distributed serrated anti-slip texture. The upper end of the equipment assembly bracket 100 is fixedly connected to a magnetic temporary plate 207 located on one side of the electric winding device 200. The magnetic temporary plate 207 is magnetically connected to one side of the metal clamping block 202.

[0023] The above solution is adopted: the electrical winder 200 is specifically a deceleration stepper type electrical winder equipped with a driver, which can achieve precise speed adjustment and has a power failure self-locking function, which can effectively prevent the connecting rope 201 from loosening and causing the film material to fall during the film lifting process. At the same time, this model of electrical winder 200 is small in size and suitable for the equipment installation needs of small and micro enterprises.

[0024] like Figures 2 to 6 As shown, a film waste storage frame 206 is fixedly connected to the lower end of the magnetic temporary plate 207. The film waste storage frame 206 is used to collect the film waste after cutting. The herringbone guide frame 103 is composed of two symmetrically arranged multi-roller guide plates. The included angle of the guide plates can be adjusted between 15 and 30 degrees. The connecting rope 201 is made of high-strength nylon rope. The multi-roller guide plate at the uppermost end and the connecting rope 201 cooperate with each other to realize the smooth lifting and guidance of the connecting rope 201. The winding roller of the electric winder 200 has a cylindrical structure. The electric winder 200 and the equipment assembly bracket 100 are detachably fixedly connected by stainless steel bolts, which can be adapted to equipment assembly brackets 100 of different heights.

[0025] The above solution employs the following: The magnetic temporary plate 207 is made of a magnetic metal plate with moderate magnetic strength, which can stably adsorb the metal clamp block 202 while allowing operators to easily remove it, avoiding excessively tight adsorption that makes separation difficult. The magnetic temporary plate 207 is bolted to the equipment assembly bracket 100, and its installation position can be adjusted according to actual operational needs. The film waste storage frame 206 is made of plastic or stainless steel, and its opening size is adapted to the size of the cutting waste, enabling centralized collection of waste and preventing waste from scattering into the equipment or on the ground, thus affecting the equipment operating environment and the operator's safety.

[0026] like Figures 2 to 6 As shown, a waste removal component 3 is provided at the upper end of the metal clamping block 202. The waste removal component 3 includes a cutting support protrusion 300 fixedly connected to one side of the upper end of the metal clamping block 202. A blade guide rail plate 301 is fixedly connected to the upper end of the cutting support protrusion 300. A cutting blade 302 is installed at the output end of the blade guide rail plate 301, and the cutting blade 302 can move horizontally back and forth along the blade guide rail plate 301. A cutting positioning plate 303 is fixedly connected to the other side of the upper end of the metal clamping block 202, and the upper surface of the cutting positioning plate 303 is in contact with the cutting edge of the cutting blade 302.

[0027] The above solution is adopted: the blade guide plate 301 adopts a long strip structure with a sliding groove inside. The lower end of the cutting blade 302 is provided with a slider that matches the sliding groove. The slider and the sliding groove are fitted with a clearance to ensure that the cutting blade 302 can slide smoothly along the blade guide plate 301 without jamming. The cutting blade 302 is made of high-speed steel and the cutting edge is sharpened to be able to quickly and accurately cut off the large clump of film material at the top. At the same time, the high-speed steel material has high hardness and wear resistance, which can extend the service life of the cutting blade 302.

[0028] Working principle and usage process of this invention: Firstly, the equipment assembly support 100 provides fixed support for the entire equipment. The climbing ladder 105 is symmetrically fixed on both sides of the equipment assembly support 100, facilitating operators to climb to the top of the equipment for operation and maintenance. The biodegradable material blown film generator 101 is fixedly connected to the lower inner end of the equipment assembly support 100. After startup, it heats and melts the biodegradable raw material and extrudes it to form a film. The film guide frame 102 is fixed to the inner end of the equipment assembly support 100 and located above the biodegradable material blown film generator 101. It provides initial limiting and guidance for the initial film extruded by the biodegradable material blown film generator 101, preventing deviation when the film is first extruded and ensuring smooth upward transport of the film. The herringbone guide frame 1... 03 is fixed inside the equipment assembly support 100 and above the film material guide frame 102. The herringbone guide frame 103 is composed of two symmetrically arranged multi-roller guide plates. The included angle of the guide plates can be adjusted between 15 and 30 degrees. It can flexibly adjust the guiding angle according to the width and thickness of the film material to flatten the film bubble extruded by the biodegradable material blown film host 101. At the same time, the multi-roller structure can reduce the friction between the film material and the guide plate and prevent the film material from being scratched. The film material conveying guide roller 104 is fixed inside the equipment assembly support 100 and above the herringbone guide frame 103. It further guides the film material after it has been flattened by the herringbone guide frame 103 and guides the film material to be smoothly conveyed to the subsequent process. When manual film removal is required, the manual film removal auxiliary component 2 begins to function. The electrical winding device 200 is fixedly connected to the upper side of one side of the equipment assembly bracket 100. Its winding roller has a cylindrical structure and is detachably fixed to the equipment assembly bracket 100 by stainless steel bolts. It can be installed and adjusted according to different heights of the equipment assembly bracket 100 to adapt to different specifications of equipment. The operator controls the opening and closing of the metal clamping block 202 through the clamping holding plate 204, placing the tip of the manually removed film material into the metal clamping block 202. The inner toothed contact layer 203 fixed to the inner wall of the metal clamping block 202 is made of rubber, with evenly distributed serrated anti-slip textures on the surface. This increases the friction between the metal clamping block and the film material, preventing slippage and detachment during clamping, and also avoids direct contact between the metal clamping block 202 and the film material, thus preventing damage. After clamping is completed and the clamping gripping plate 204 is released, the self-returning hinge 205 can automatically reset the metal clamping block 202 to the closed state, activating the electric winding machine 200. The winding roller of the electric winding machine 200 begins to rotate and wind up the connecting rope 2. 01. The metal clamping block 202 and the clamped film material are lifted upwards. At the same time, the multi-roller guide plate at the top and the connecting rope 201 cooperate to provide stable guidance for the connecting rope 201, preventing it from shifting during the lifting process, thus ensuring that the film material can be smoothly conveyed upwards. After the film material is lifted to the designated position, the worker on the top of the equipment climbing ladder frame 105 takes over the suspended metal clamping block 202. At this time, before feeding the film material into the film material conveying guide roller 104, the worker can manually push it. The cutting blade 302 moves horizontally back and forth along the blade guide rail 301. The cutting positioning plate 303 is fixedly connected to the other side of the upper end of the metal clamping block 202, and the upper surface of the cutting positioning plate 303 is in contact with the cutting edge of the cutting blade 302. During cutting, the cutting blade 302 moves along the blade guide rail 301 toward the cutting positioning plate 303, and cooperates with the cutting positioning plate 303 to achieve precise cutting of the large clump of film material at the top, ensuring that the cut film material can smoothly pass through the herringbone guide frame 103 and the subsequent film material conveying guide roller 104. Waste film material generated during the cutting process is collected directly by the operator into a specially designed waste film material storage box 206. This waste film material storage box 206 is firmly fixed to the bottom of the magnetic temporary placement plate 207. Its design not only facilitates the centralized storage of waste material, but also effectively prevents waste material from scattering around the equipment, thereby avoiding the adverse effects that waste material accumulation may have on the equipment operating environment, ensuring the cleanliness of the production site and the stable operation of the equipment. After the film lifting action is completed, the operator can adsorb the metal clamping block 202 used to hold the film material onto the magnetic temporary placement plate 207 for temporary storage. This design makes tool retrieval and placement more convenient, reduces preparation time during operation, and allows the operator to immediately proceed with subsequent operation steps, significantly improving the smoothness and convenience of the overall operation. The cut film material will continue to be flattened by the herringbone guide 103 to ensure that the surface of the film material is flat and wrinkle-free. Then, guided by the film material conveying guide roller 104, it will be smoothly transported to the subsequent production process.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A biodegradable material blown film device, comprising a melt blown film core component (1), wherein the melt blown film core component (1) includes a device assembly support (100), a biodegradable material blown film host (101) is fixedly connected to the lower inner end of the device assembly support (100), a film material guide frame (102) located above the biodegradable material blown film host (101) is fixedly connected to the inner end of the device assembly support (100), a herringbone guide frame (103) located above the film material guide frame (102) is fixedly connected to the inner end of the device assembly support (100), a film material conveying guide roller (104) located at the upper end of the herringbone guide frame (103) is fixedly connected to the inner end of the device assembly support (100), and device climbing ladder frames (105) are symmetrically fixedly connected to both sides of the device assembly support (100), characterized in that: It also includes a manual membrane removal auxiliary component (2) for assisting manual membrane removal. The manual film-pulling auxiliary component (2) includes an electrical winder (200) fixedly connected above one side of the equipment assembly bracket (100) for realizing automatic film-pulling action. The outer end of the electrical winder (200) is wound with a connecting rope (201) that transmits the lifting force. The end of the connecting rope (201) near the biodegradable material blown film host (101) is fixedly connected to a metal clamping block (202) for clamping the film material. The inner sidewall of the metal clamping block (202) is fixedly connected to an inner toothed contact layer (203). One end of the metal clamping block (202) is fixedly connected to a clamping gripping plate (204) for controlling the opening and closing of the metal clamping block (202). The rotating connection position of the metal clamping block (202) is equipped with a self-rebound hinge (205).

2. The biodegradable material blown film equipment according to claim 1, characterized in that: The inner tooth contact layer (203) is made of rubber, and the surface of the inner tooth contact layer (203) is provided with uniformly distributed serrated anti-slip texture.

3. The biodegradable material blown film equipment according to claim 1, characterized in that: The upper end of the equipment assembly bracket (100) is fixedly connected to a magnetic temporary plate (207) located on one side of the electrical winder (200), and the magnetic temporary plate (207) is magnetically connected to one side of the metal clamping block (202).

4. The biodegradable material blown film equipment according to claim 3, characterized in that: The lower end of the magnetic temporary plate (207) is fixedly connected to a membrane waste storage frame (206), which is used to collect the membrane waste after cutting.

5. The biodegradable material blown film equipment according to claim 1, characterized in that: The herringbone guide (103) consists of two symmetrically arranged multi-roller guide plates, and the included angle of the guide plates can be adjusted between 15 and 30 degrees.

6. The biodegradable material blown film equipment according to claim 5, characterized in that: The connecting rope (201) is made of high-strength nylon rope, and the multi-roller guide plate at the uppermost end cooperates with the connecting rope (201) to achieve stable lifting and guidance of the connecting rope (201).

7. The biodegradable material blown film equipment according to claim 1, characterized in that: The upper end of the metal clamping block (202) is provided with a waste removal component (3), which includes a cutting support protrusion (300) fixedly connected to one side of the upper end of the metal clamping block (202).

8. The biodegradable material blown film equipment according to claim 7, characterized in that: The upper end of the cutting support protrusion (300) is fixedly connected to the blade guide rail plate (301), and the output end of the blade guide rail plate (301) is equipped with a cutting blade (302), and the cutting blade (302) can move horizontally back and forth along the blade guide rail plate (301).

9. The biodegradable material blown film equipment according to claim 8, characterized in that: A cutting positioning plate (303) is fixedly connected to the other side of the upper end of the metal clamping block (202), and the upper surface of the cutting positioning plate (303) is in contact with the cutting edge of the cutting blade (302).

10. The biodegradable material blown film equipment according to claim 1, characterized in that: The winding roller of the electrical winder (200) has a cylindrical structure, and the electrical winder (200) is detachably fixed to the equipment assembly bracket (100) by stainless steel bolts.

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