Blow molding device for manufacturing biodegradable mulching film from plant fibers
Through innovative design of the drive components and flattening structure, the quantitative addition and flattening of biodegradable mulch film were achieved, solving the problem of uneven material addition in the device and improving the stability and applicability of mulch film production.
Patent Information
- Application Number
- CN202520483516.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-19
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-03-19
AI Technical Summary
Existing blow molding equipment for producing biodegradable mulch films from plant fibers cannot achieve quantitative addition of materials, resulting in unstable mulch film performance and affecting its effectiveness.
Employing a drive assembly and a limiting disc system, the motor drives the transmission gears and driven gears to precisely control the opening and closing of the storage box, achieving quantitative feeding of raw materials; combined with the extrusion rollers and spring structure, it automatically adapts to different thicknesses of mulch film for flattening.
To ensure consistent quality of each batch of mulch film products, reduce defect rates, improve the versatility and applicability of the equipment, and meet diverse production needs.
Smart Images

Figure CN223849967U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mulching film production technical field especially relates to a kind of plant fiber making biodegradable mulching film blow molding device. BACKGROUND
[0002] Biodegradable mulching film made of plant fiber is widely used in agricultural planting and horticulture as agricultural covering material, can conserve water and increase temperature, suppress weeds and prevent insects, and has many advantages such as good environmental protection, renewable resources, improving soil structure and promoting crop growth. When biodegradable mulching film is made of plant fiber, a blow molding device is needed. The blow molding device can make the thickness of the mulching film uniform and the physical properties good through the process of extruding and blowing the molten material into a film. The blow molding process can be continuous to improve efficiency, and the stretching and blowing can optimize the mechanical properties of the product to adapt to various environments and prolong the service life. The thickness of the mulching film can also be accurately controlled by controlling parameters to meet different planting needs.
[0003] The plant fiber making biodegradable mulching film blow molding device generally consists of a feeding mechanism, a blow molding head and a traction roller. The biodegradable mulching film market has broad prospects. The plant fiber making biodegradable mulching film blow molding device mixes plant fiber and other raw materials uniformly through raw material processing, plasticizes the raw materials into a melt through extrusion, and then forms a thin film tube through blow molding. The tube is then cooled and shaped, and then wound into a roll. The entire process is precisely controlled and adjusted by a control device to produce qualified products.
[0004] The existing plant fiber making biodegradable mulching film blow molding device cannot realize quantitative addition of materials. The performance of biodegradable mulching film depends on the ratio of plant fiber and other additives. Without quantitative addition of materials, the ratio of each component in the mulching film produced each time will differ, resulting in unstable product performance. High or low plant fiber content will cause the strength, flexibility and degradation speed of the mulching film to deviate from the expected value, affecting its use in agricultural production. Therefore, a plant fiber making biodegradable mulching film blow molding device is proposed to solve the above problems. UTILITY MODEL CONTENTS
[0005] To make up for the above shortcomings, the utility model provides a plant fiber making biodegradable mulching film blow molding device to improve the problem that the existing technology cannot realize quantitative addition of materials.
[0006] To achieve the above purpose, the utility model adopts the following technical solutions:
[0007] The utility model provides a kind of plant fiber makes biodegradable mulch blow molding device, including workbench, the top of the workbench is fixedly connected with shell, the inside of the shell is fixedly connected with the driving assembly for driving part, the inside of the driving assembly is fixedly connected with connecting rod, the top of the connecting rod is fixedly connected with rotating disc, the inside of the rotating disc is fixedly connected with two material storage box, the outside of the connecting rod is rotatably connected with limit disc, the inside of the limit disc is rotatably connected with two connecting blocks, the top of the workbench is fixedly connected with support, the top of the support is slidably connected with the flattening assembly for flattening ground, the top of the workbench is fixedly connected with processing transmission block, the top of the processing transmission block is fixedly connected with feed inlet, the end of the processing transmission block away from feed inlet is fixedly connected with blow molding machine, the top of the processing transmission block is fixedly connected with controller, the outside of the support is fixedly connected with electric roller;
[0008] As a further description of the above technical solution:
[0009] The driving assembly includes motor and driven gear, the outside of the motor is fixedly connected in the inside of the shell, the drive end of the motor is fixedly connected with transmission gear, the outside of the transmission gear is meshed with the outside of the limit plate, the outside of the connecting rod is fixedly connected in the inside of the driven gear;
[0010] As a further description of the above technical solution:
[0011] The flattening assembly includes two extrusion rollers, the two sides of the extrusion roller are slidably connected in the inside of the support, the inside of the extrusion roller is rotatably connected with limit rod, the inside of the limit rod is provided with hole, the inside of the hole is fixedly connected with spring;
[0012] As a further description of the above technical solution:
[0013] The inside of the support is provided with sliding slot, the other end of the spring is fixedly connected in the inside of the sliding slot;
[0014] As a further description of the above technical solution:
[0015] The outside of the limit rod is slidably connected in the inside of the sliding slot, the inside of the support is fixedly connected with limit frame;
[0016] As a further description of the above technical solution:
[0017] The bottom of the connecting block is fixedly connected with plug plate, the end of the plug plate away from connecting block is slidably connected in the bottom of the material storage box;
[0018] As a further description of the above technical solution:
[0019] The bottom of the driven gear is fixedly connected with a limiting plate, and the outer side of the limiting plate is slidably connected to the outer side of the transmission gear.
[0020] As a further description of the above technical solution:
[0021] The top of the workbench is fixedly connected with a storage box, and the bottom of the storage box is slidably connected to the bottom of the storage box.
[0022] The utility model has the advantages of the following beneficial effects:
[0023] 1、 the utility model discloses, drive transmission gear through starting motor, transmission gear drive driven gear, driven gear drive connecting rod, connecting rod drive rotary disc, rotary disc drive storage box, storage box drive baffle, thereby realize the effect of quantitative unloading of material, can accurate control the amount of plant fiber and other biodegradable raw materials that enter the processing link every time, this is important for producing biodegradable mulch, because different raw material proportion can significantly affect the performance of mulch, such as degradation rate, tensile strength etc. Precise quantitative unloading can ensure that each batch of mulch product quality is stable, meets the established production standard, reduces the rate of defective products caused by raw material quantity fluctuation.
[0024] 2、 the utility model discloses, through extrusion roller cooperation limiting rod, limiting rod cooperation hole, hole cooperation spring, thereby realize the flatness of different thicknesses of mulch, can automatically adapt to different thicknesses of mulch, whether it is relatively thin mulch or relatively thick mulch, can be effectively flattened through the mutual cooperation of extrusion roller and spring etc. Component, improve the versatility and applicability of the device, so that it can satisfy multiple production needs, and different flattening equipment does not have to be replaced for different thicknesses of mulch. BRIEF DESCRIPTION OF DRAWINGS
[0025] Figure 1 A three-dimensional schematic view of a plant fiber biodegradable mulch blow molding device is provided for the utility model;
[0026] Figure 2 A structure schematic view of a support of a plant fiber biodegradable mulch blow molding device is provided for the utility model;
[0027] Figure 3 A structure schematic view of a shell of a plant fiber biodegradable mulch blow molding device is provided for the utility model;
[0028] Figure 4 For Figure 3 An enlarged view of A in the middle;
[0029] Figure 5 For Figure 3 An enlarged view of B in the middle;
[0030] Figure 6 For Figure 3 Enlarged view at C.
[0031] Legend:
[0032] 1, workbench; 2, processing transmission block; 3, blow molding device; 4, controller; 5, support; 6, limiting frame; 7, electric roller; 8, shell; 9, motor; 10, transmission gear; 11, driven gear; 12, limiting plate; 13, connecting rod; 14, rotating disc; 15, storage box; 16, storage box; 17, limiting disc; 18, connecting block; 19, blocking plate; 20, extrusion roller; 21, limiting rod; 22, spring; 23, hole; 24, chute. DETAILED DESCRIPTION
[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0034] With reference to Figures 3 to 5 , the utility model provides an embodiment: a kind of plant fiber is made biodegradable mulch blow molding device, including workbench 1, workbench 1 as the basis support structure of whole device, provide stable mounting platform for parts, ensure that device keeps steady during operation, the top of workbench 1 is fixedly connected with storage box 16, storage box 16 is used to store raw materials required for making mulch, its larger capacity can satisfy the production demand of certain time, avoid frequent addition of raw materials to affect work efficiency.
[0035] The top of workbench 1 is fixedly connected with shell 8, shell 8 not only plays the role of protection internal drive assembly, can effectively prevent dust, sundries etc. from entering, guarantee the normal operation of drive assembly, prolong its service life, the inside of shell 8 is fixedly connected with drive assembly for driving parts, drive assembly is the power source of whole device, can accurately control the movement of each part, ensure the smooth progress of production process, drive assembly is fixedly connected with connecting rod 13 in its inside, connecting rod 13 as the key component of connecting drive assembly and rotating disc 14, can stably transmit the power of drive assembly to rotating disc 14, guarantee the coherence and stability of rotation, the top of connecting rod 13 is fixedly connected with rotating disc 14, rotating disc 14 does circular motion under the drive, can drive storage box 15 to realize position conversion, to complete the quantitative transfer of raw materials.
[0036] The inside of the rotating disc 14 is fixedly connected with two material storage boxes 15, which can accurately receive the raw materials discharged from the storage box 16, and through the rotation of the rotating disc 14, the raw materials are transferred to the designated position, realizing effective control of the addition amount of raw materials. The top of the material storage box 15 is slidingly connected to the bottom of the storage box 16. This sliding connection not only ensures that the material storage box 15 can smoothly obtain raw materials from the storage box 16, but also reduces friction between the two, improving the operating efficiency of the device. The outer side of the connecting rod 13 is rotatably connected with a limiting disc 17, which can limit the movement track of the connecting block 18, ensuring that the connecting block 18 rotates according to the predetermined path, thereby ensuring that the blocking plate 19 can accurately control the opening and closing of the material storage box 15. The inside of the limiting disc 17 is rotatably connected with two connecting blocks 18, which rotate under the action of the limiting disc 17, thereby driving the blocking plate 19 to move, realizing the blocking and opening of the bottom opening of the material storage box 15.
[0037] The bottom of the connecting block 18 is fixedly connected with a blocking plate 19, which can accurately block the bottom opening of the material storage box 15 under the driving of the connecting block 18, preventing the raw materials from falling at the wrong time and ensuring the accuracy of the addition of raw materials. The end of the blocking plate 19 away from the connecting block 18 is slidingly connected to the bottom of the material storage box 15. This sliding connection allows the blocking plate 19 to flexibly control the opening and closing of the material storage box 15, ensuring the quantitative transfer of raw materials. The top of the workbench 1 is fixedly connected with a support 5, which provides support for the limiting frame 6, flattening assembly and other components, ensuring that these components can work stably, and also providing a certain space for the transmission and processing of the mulch film. The inside of the support 5 is fixedly connected with a limiting frame 6, which can limit the position of the electric roller 7 and the mulch film, ensuring that the mulch film remains stable during transmission, avoiding deviation or wrinkles.
[0038] A sliding groove 24 is formed in the inside of the support 5, which provides a track for the sliding of parts, ensuring that the parts can smoothly slide therein (refer to Figure 6 ), thereby adjusting the gap between the extrusion rollers 20. The top of the support 5 is slidingly connected with a flattening assembly for flattening the ground. The flattening assembly can flatten the blown mulch film, making the surface of the mulch film more flat, improving the quality and use effect of the mulch film. The top of the workbench 1 is fixedly connected with a processing transmission block 2, which can further process and handle the raw materials transferred from the material storage box 15, making them suitable for blowing, and then transmitting them to the blowing machine 3. The top of the processing transmission block 2 is fixedly connected with an inlet, which can accurately receive the raw materials transferred from the material storage box 15, ensuring that the raw materials smoothly enter the processing transmission block 2 for processing.
[0039] The end of the processing transmission block 2 away from the feeding port is fixedly connected with a blowing device 3, the blowing device 3 is a key component for making the mulch film, and can blow the processed raw material into the mulch film, and by accurately controlling the blowing parameters, mulch films of different specifications and performances can be produced, the top of the processing transmission block 2 is fixedly connected with a controller 4, the controller 4 can accurately control the operation of the whole device, and the operation parameters of each component are adjusted according to the production requirements, so that the production process is efficient and stable, the outer side of the support 5 is fixedly connected with an electric roller 7, the electric roller 7 can wind and collect the flattened mulch film, and the slow and stable rotating speed of the electric roller 7 can ensure that the mulch film is neatly wound thereon, which is convenient for subsequent storage and transportation.
[0040] The driving assembly comprises a motor 9 and a driven gear 11, the motor 9 serves as a power source of the driving assembly and can provide stable power output, the driven gear 11 is driven to rotate by a transmission gear 10, the driving of the part is realized, the bottom of the driven gear 11 is fixedly connected with a limiting plate 12, the limiting plate 12 can cooperate with the transmission gear 10 to control the rotation and stop of the driven gear 11, so as to accurately control the position of the storage box 15, the outer side of the limiting plate 12 is slidably connected to the outer side of the transmission gear 10, this sliding connection mode enables the limiting plate 12 to accurately control the movement of the driven gear 11 according to the rotation of the transmission gear 10, so as to ensure that the quantitative transfer process of the raw material is accurate, the outer side of the motor 9 is fixedly connected to the inside of the shell 8, the shell 8 can provide good protection for the motor 9, reduce the influence of external factors on the motor 9, and prolong the service life of the motor 9.
[0041] The driving end of the motor 9 is fixedly connected with a transmission gear 10, the transmission gear 10 can transmit the power of the motor 9 to the driven gear 11, and by the special tooth design, the intermittent driving of the driven gear 11 is realized, so as to control the rotation and stop of the storage box 15, the outer side of the transmission gear 10 is in meshing connection with the outer side of the limiting plate 12, this meshing connection mode can ensure the effective transmission of power and the stable operation of the device, the outer side of the connecting rod 13 is fixedly connected to the inside of the driven gear 11, the rotation of the driven gear 11 can drive the connecting rod 13 to rotate, and then drive the rotating disc 14 and the storage box 15 to move, so as to realize the quantitative transfer and processing of the raw material.
[0042] Reference Figure 1 , Figure 2 and Figure 6The flattening assembly comprises two extrusion rollers 20, which can flatten the blown film to make the film surface more flat, improve the quality and appearance of the film, and are both slidingly connected to the inside of the bracket 5. This sliding connection allows the extrusion rollers 20 to work stably under the limitation of the bracket 5, ensuring the consistency of the flattening effect. The inside of the extrusion roller 20 is rotationally connected to a limiting rod 21, which can slide in a sliding groove 24 to provide support and guidance for the extrusion roller 20, ensuring that the extrusion roller 20 can automatically adjust its position according to the thickness of the film. The outside of the limiting rod 21 is slidingly connected to the inside of the sliding groove 24, which provides a stable track for the sliding of the limiting rod 21, ensuring that the position adjustment of the extrusion roller 20 is accurate and smooth.
[0043] The inside of the limiting rod 21 is provided with a hole 23, which provides a mounting space for the spring 22, allowing the spring 22 to function within it and achieve elastic adjustment of the gap between the extrusion rollers 20. The inside of the hole 23 is fixedly connected with the spring 22, which has good elasticity and can automatically adjust the gap between the extrusion rollers 20 according to the thickness of the film, ensuring effective flattening of films of different thicknesses. The other end of the spring 22 is fixedly connected to the inside of the sliding groove 24, which allows the spring 22 to work stably. When the extrusion rollers 20 are subjected to external forces, the spring 22 can elastically deform in time to adjust the position of the extrusion rollers 20. When the change in film thickness disappears, the spring 22 can also restore the extrusion rollers 20 to their original position.
[0044] When the staff needs to make the mulch, the raw material of the mulch can be poured into the inside of the storage box 16, and the motor 9 is started to drive the transmission gear 10, and the outer side of the transmission gear 10 is engaged with the driven gear 11. Because one side of the transmission gear 10 has teeth, and the other side does not have teeth, when the side with teeth of the transmission gear 10 rotates to the outside of the driven gear 11, the limiting plate 12 can be driven. When the limiting plate 12 rotates, the connecting rod 13 and the rotating disc 14 connected to the top of the connecting rod 13 are driven together. The inside of the rotating disc 14 is connected with two storage boxes 15. At this time, the storage box 15 is driven by the rotating disc 14, so that the storage box 15 slides at the bottom of the storage box 16. The bottom of the storage box 16 is provided with a port for discharging the internal material. At this time, the material will enter the inside of the storage box 15. When the storage box 15 rotates to the bottom of the storage box 16, the transmission gear 10 rotates to the side of the driven gear 11 without teeth. The limiting plate 12 at the bottom of the driven gear 11 will stop the driven gear 11 because it is on the side without teeth of the transmission gear 10. At this time, the storage box 15 can have time to fill the inside. When the transmission gear 10 rotates one circle, the driven gear 11 can be driven again, so that the storage box 15 drives the blocking plate 19 together, so that the connecting block 18 connected to one side of the blocking plate 19 rotates in the inside of the limiting disc 17. The inside of the limiting disc 17 is irregular. When it rotates to the top of the feeding port connected to the processing transmission block 2, it will be inclined in the inside of the limiting disc 17 because of the irregular shape in the inside. When it rotates to the bottom of the storage box 16, the connecting block 18 will be restored to normal because of the inside of the limiting disc 17, so that the blocking plate 19 is resisted at the bottom of the storage box 15 to avoid the material in the inside of the storage box 15 from falling. The transfer of the storage box 16 by the storage box 15 can make the material entering the inside of the processing transmission block 2 at a time be controlled, so that the processing transmission block 2 can better process the material. After being transmitted to the inside of the blow molding machine 3 by the processing transmission block 2, the material can be blown out from the inside of the blow molding machine 3 by starting the blow molding machine 3. The blown mulch can pass through the gap between the two extrusion rollers 20, so that the mulch is wound on the outside of the motor roller 7. At this time, the motor roller 7 is started, so that the motor roller 7 rotates slowly and continuously, so that the mulch is all wound on the outside of the motor roller 7.
[0045] When the local film passes through the gap between the two extrusion rollers 20, the extrusion rollers 20 can adjust the gap according to the thickness of the local film, because the limiting rods 21 connected inside the extrusion rollers 20 slide inside the sliding grooves 24, and the sliding grooves 24 are provided with sliding grooves 24 inside. When thicker local film is encountered, the upper extrusion roller 20 will be extruded upward by the local film, and the limiting rod 21 is provided with a hole 23 inside, and the hole 23 is connected with a spring 22 inside. At this time, the lower extrusion roller 20 will extrude the spring 22 downward, so that the spring 22 is contracted. When the local film is completely rolled up, the gap between the extrusion rollers 20 will be extruded upward and downward by the things in the gap, so the spring 22 will return to the original position by rebounding, so as to realize the winding of the extrusion roller 7 of the local film of different thickness.
[0046] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.
Claims
1. A plant fiber made biodegradable mulch blow molding device comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected with a shell (8), the inside of the shell (8) is fixedly connected with a driving assembly for driving parts, the inside of the driving assembly is fixedly connected with a connecting rod (13), the top of the connecting rod (13) is fixedly connected with a rotating disc (14), the inside of the rotating disc (14) is fixedly connected with two storage boxes (15), the outer side of the connecting rod (13) is rotatably connected with a limiting disc (17), the inside of the limiting disc (17) is rotatably connected with two connecting blocks (18), the top of the workbench (1) is fixedly connected with a support (5), the top of the support (5) is slidably connected with a flattening assembly for flattening the ground, the top of the workbench (1) is fixedly connected with a processing transmission block (2), the top of the processing transmission block (2) is fixedly connected with a feeding port, the end of the processing transmission block (2) away from the feeding port is fixedly connected with a blow molding device (3), the top of the processing transmission block (2) is fixedly connected with a controller (4), the outer side of the support (5) is fixedly connected with an electric roller (7).
2. A plant fiber-made biodegradable mulching film blowing apparatus according to claim 1, characterized by: The driving assembly comprises a motor (9) and a driven gear (11), the outer side of the motor (9) is fixedly connected in the inside of the shell (8), the driving end of the motor (9) is fixedly connected with a transmission gear (10), the outer side of the transmission gear (10) is meshingly connected with the outer side of a limiting plate (12), and the outer side of the connecting rod (13) is fixedly connected in the inside of the driven gear (11).
3. A plant fiber made biodegradable mulch blown film device according to claim 1, characterized in that: The flattening assembly comprises two extrusion rollers (20), the two sides of the extrusion rollers (20) are slidably connected in the inside of the support (5), the inside of the extrusion roller (20) is rotatably connected with a limiting rod (21), the inside of the limiting rod (21) is provided with a hole (23), and the inside of the hole (23) is fixedly connected with a spring (22).
4. A plant fiber made biodegradable mulch blown film device according to claim 3, characterized in that: The inside of the support (5) is provided with a sliding groove (24), and the other end of the spring (22) is fixedly connected in the inside of the sliding groove (24).
5. A plant fiber made biodegradable mulch blown film device according to claim 4, characterized in that: The outer side of the limiting rod (21) is slidably connected in the inside of the sliding groove (24), and the inside of the support (5) is fixedly connected with a limiting frame (6).
6. A plant fiber made biodegradable mulch blown film device according to claim 1, characterized in that: The bottom of the connecting block (18) is fixedly connected with a blocking plate (19), and the end of the blocking plate (19) away from the connecting block (18) is slidably connected in the bottom of the storage box (15).
7. A plant fiber made biodegradable mulch blown film device according to claim 2, characterized in that: The bottom of the driven gear (11) is fixedly connected with a limiting plate (12), and the outer side of the limiting plate (12) is slidably connected on the outer side of the transmission gear (10).
8. A plant fiber made biodegradable mulch blown film device according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected with a storage box (16), and the top of the storage box (15) is slidably connected in the bottom of the storage box (16).