Preparation equipment of degradable preservative film

Abstract

The utility model relates to the technical field of preservative film preparation, and discloses a degradable preservative film preparation device which solves the problems in the background technology and comprises a feeding port, an extrusion plasticizing mechanism is arranged at the bottom of the feeding port, and a forming module is arranged at the end, away from the feeding port, of the extrusion plasticizing mechanism. The forming module comprises a first mold plate, the first mold plate is connected with the tail end of the extrusion plasticizing mechanism, the first mold plate is sleeved with a second mold plate, the two ends of the second mold plate are in threaded connection with lead screws, the two lead screws are connected with the output end of a rotating motor, and a through hole is formed in the first mold plate; the mold has the advantages that the mold does not need to be frequently replaced, the production and storage cost of the mold is reduced, the mold can be immediately completed according to the market requirement or the change of the product specification, and the production flexibility is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of preservative film preparation, specifically to a kind of preparation equipment of degradable preservative film. BACKGROUND

[0002] With the continuous enhancement of environmental protection consciousness, traditional non-degradable plastic products gradually attract the attention of all sectors of society because of its difficult degradation and serious pollution to ecological environment, so the new type of environmental protection preservative film based on biodegradable materials such as polylactic acid and polyhydroxyalkanoate becomes the main material for preparing environmental protection film.

[0003] In the preparation equipment of traditional film, the adjustment of film thickness usually depends on fixed mold design, which is specifically manifested as that the width of mold opening has been determined when manufacturing, and once put into use, it is difficult to quickly adjust according to production demand, and it is difficult to adapt to market demand of different specifications, if film thickness needs to be changed, it can only be realized by replacing mold, which not only increases mold manufacturing and storage cost, but also leads to production line downtime, affects efficiency, therefore, we propose a kind of preparation equipment of degradable preservative film. UTILITY MODEL CONTENT

[0004] In order to solve the problems proposed in the background art, the utility model provides the following technical scheme: a kind of preparation equipment of degradable preservative film, including feed inlet, the extrusion plasticizing mechanism is arranged at the bottom of feed inlet, the end of extrusion plasticizing mechanism away from feed inlet is provided with forming module,

[0005] The forming module includes a first template, the first template is connected with the end of extrusion plasticizing mechanism, the first template is provided with a second template, the second template is threadedly connected with lead screw at both ends, the two lead screws are connected with the output end of rotary motor, the first template is provided with a through hole, the other end of lead screw penetrates through the through hole, the diameter of through hole is greater than the diameter of lead screw, the lead screw drives the second template to be close to or away from the first template by rotary motor, the first template and the second template form a movable space, and the movable space has an opening at the bottom.

[0006] Preferably, the first template is a flat plate, the second template has a main body parallel to the first template, the main body is connected with a baffle on the side, the first template is slidingly connected with the baffle on the edge, the first template and the second template form a cavity with only the bottom opening, and the boundary of movable space is defined by the sliding connection of baffle, to ensure sealing and stability, the cavity design helps to stabilize the flow path of material, prevents material leakage or uneven flow, and improves film forming quality.

[0007] Preferably, the extrusion plasticizing mechanism comprises a melting cylinder connected with the bottom of the feeding port, a stirring screw rod arranged in the melting cylinder, one end of the stirring screw rod penetrating through the melting cylinder and connected with the output end of the stirring motor, and a heating cylinder arranged outside the melting cylinder, so that the material is fully mixed in the melting cylinder, the problem of insufficient melting of the raw material particles is prevented, and the material uniformity is improved.

[0008] Preferably, a plurality of infrared heating pipes are arranged in the heating cylinder, so that a high-efficiency and uniform heat source is provided.

[0009] Preferably, high-temperature-resistant elastic rubber is arranged at the connection position of the first template and the second template, so that the sealing performance of the equipment in a high-temperature environment is improved, the material leakage is prevented, and the service life of the equipment is prolonged.

[0010] Preferably, a scale line is arranged on the lead screw, the precision of the scale line is 0.1 mm, an intuitive adjustment reference is provided for the user, and the high-precision control requirement for the film thickness is met.

[0011] Compared with the prior art, the utility model has the beneficial effects that:

[0012] In work, the degradable plastic raw material is added into the equipment through the feeding port, the stirring screw rod rotates under the driving of the stirring motor, the raw material is conveyed forward, the heating cylinder outside the melting cylinder provides heat, the infrared heating pipe arranged inside uniformly heats the raw material, the raw material is gradually melted, the raw material in the molten state is extruded by the screw rod, enters the forming module, the molten material flows from the first template into the second template, and is extruded through the movable space between the two templates to form the preservative film. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model.

[0014] Fig. 1 It is a side view structure schematic view of the utility model;

[0015] Fig. 2 It is a side view section structure schematic view of the utility model;

[0016] In the figure: 1, feed inlet; 2, melting cylinder; 3, stirring screw; 4, stirring motor; 5, heating cylinder; 6, infrared heating pipe; 7, first template; 8, second template; 9, screw rod; 10, rotating motor; 11, moving space. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be apparently 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 the other embodiments obtained by the ordinary skilled in the art without creative labor belong to the protection scope of the utility model.

[0018] By Figs. 1-2 The utility model discloses a feed inlet 1 is provided with extrusion plasticization mechanism at the bottom, and the end away from the feed inlet 1 of extrusion plasticization mechanism is provided with forming module,

[0019] The forming module includes a first template 7, which is connected to the end of the extrusion plasticization mechanism. The first template 7 is provided with a second template 8. The second template 8 is threadedly connected with a screw rod 9 at both ends. The two screw rods 9 are connected with the output end of a rotating motor 10. A through hole is formed in the first template 7. The other end of the screw rod 9 penetrates the through hole. The diameter of the through hole is larger than the diameter of the screw rod 9. The screw rod 9 drives the second template 8 to move closer to or away from the first template 7 through the rotating motor 10. An activity space 11 is formed between the first template 7 and the second template 8. The activity space 11 has an opening at the bottom.

[0020] The first template 7 is a flat plate. The second template 8 has a main body parallel to the first template 7. A baffle is connected to the side of the main body. The edge of the first template 7 is slidingly connected with the baffle. A cavity with an open bottom is formed between the first template 7 and the second template 8. The sliding connection of the baffle defines the boundary of the activity space 11, ensuring the sealing and stability. The design of the cavity helps to stabilize the flow path of the material, preventing material leakage or uneven flow, and improving the quality of film forming.

[0021] The extrusion plasticization mechanism includes a melting cylinder 2 connected to the bottom of the feed inlet 1. A stirring screw 3 is arranged in the melting cylinder 2. One end of the stirring screw 3 penetrates the melting cylinder 2 and is connected with the output end of a stirring motor 4. A heating cylinder 5 is arranged outside the melting cylinder 2, ensuring the sufficient mixing of the material in the melting cylinder 2, preventing the problem of insufficient melting of the raw material particles, and improving the uniformity of the material.

[0022] The heating cylinder 5 is provided with a plurality of infrared heating pipes 6, providing efficient and uniform heat source.

[0023] The first template 7 and the second template 8 are provided with high-temperature-resistant elastic rubber at the connection position, so that the sealing performance of the equipment in a high-temperature environment is improved, material leakage is prevented, and the service life of the equipment is prolonged.

[0024] The screw rod 9 is provided with a scale line, and the scale line has an accuracy of 0.1 mm, so that an intuitive adjustment reference is provided for a user, and the high-precision control requirement for the film thickness is met.

[0025] Working principle: when working, the degradable plastic raw material is added into the equipment through the feeding port 1, the stirring screw rod 3 rotates under the driving of the stirring motor 4, the raw material is conveyed forward, the heating cylinder 5 outside the melting cylinder 2 provides heat, the infrared heating pipe 6 arranged inside uniformly heats the raw material, so that the raw material is gradually melted, the raw material in the melted state is extruded by the screw rod, enters the forming module, the melted material flows into the second template 8 from the first template 7, and is extruded through the movable space 11 between the two templates, so that the preservative film is formed, the operator can change the width of the movable space 11 according to the production requirement, so that the film thickness is adjusted, the rotary motor 10 is started, the screw rod 9 drives the second template 8 to move along the axial direction through the threaded connection, so that the distance between the first template 7 and the second template 8 is accurately adjusted, so that the film thickness is adjusted, the formed film enters the next process through the opening, the mold does not need to be frequently replaced, the production and storage cost of the mold is reduced, the production flexibility is greatly improved.

[0026] It should be noted that, in the present text, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A preparation device of degradable cling film, comprising a feeding port (1), characterized in that: The bottom of the feeding port (1) is provided with an extrusion plasticizing mechanism, and the end of the extrusion plasticizing mechanism away from the feeding port (1) is provided with a forming module, The forming module comprises a first template (7) connected with the end of the extrusion plasticizing mechanism, and the first template (7) is sleeved with a second template (8), the two ends of the second template (8) are threadedly connected with a lead screw (9), and the two lead screws (9) are connected with the output end of a rotary motor (10); a through hole is formed in the first template (7), the other end of the lead screw (9) penetrates through the through hole, the diameter of the through hole is larger than the diameter of the lead screw (9), the lead screw (9) drives the second template (8) to move close to or away from the first template (7) through the rotary motor (10), an active space (11) is formed between the first template (7) and the second template (8), and the bottom of the active space (11) has an opening.

2. The preparation device of a degradable preservative film according to claim 1, characterized in that: The first template (7) is a flat plate, the second template (8) has a main body parallel to the first template (7), the side edge of the main body is connected with a baffle, the edge of the first template (7) is slidably connected with the baffle, and a cavity with only an open bottom is formed between the first template (7) and the second template (8).

3. The preparation device of a degradable cling film according to claim 2, characterized in that: The extrusion plasticizing mechanism comprises a melting cylinder (2) connected with the bottom of the feeding port (1), and a stirring screw (3) is arranged in the melting cylinder (2); one end of the stirring screw (3) penetrates through the melting cylinder (2) and is connected with the output end of a stirring motor (4); and the melting cylinder (2) is sleeved with a heating cylinder (5).

4. The preparation device of a degradable cling film according to claim 3, characterized in that: The heating cylinder (5) is provided with a plurality of infrared heating pipes (6).

5. The apparatus for preparing a degradable cling film according to claim 4, wherein: The connection between the first template (7) and the second template (8) is provided with high-temperature-resistant elastic rubber.

6. The preparation device of a degradable cling film according to claim 5, characterized in that: The lead screw (9) is provided with a scale line, and the accuracy of the scale line is 0.1mm.

Images