Production line layout for automatically storing and drying flaky natural rubber

Abstract

The utility model discloses a production line layout for automatically storing and drying flaky natural rubber. Comprising a feeding section, an airing warehouse, a heat pump drying warehouse, a finished product temporary storage warehouse and a finished product discharging section, the feeding section conveys rubber sheets through a feeding conveyor, and the discharging section conveys the rubber sheets through a finished product conveyor; the films are hung on the hanging rack from the airing warehouse, the heat pump drying warehouse and the finished product caching warehouse through hanging rods; the hanging rack is in rolling connection with the tracks in the airing warehouse, the finished product caching warehouse and the heat pump drying warehouse respectively; shuttle vehicles are arranged between the feeding section and the air-drying warehouse, between the finished product temporary storage warehouse and the finished product discharging section, between the air-drying warehouse and the heat pump drying warehouse and between the finished product temporary storage warehouse and the heat pump drying warehouse and are used for conveying hangers; the shuttle vehicle comprises transverse rails and a vehicle body, and the transverse rails are located at feeding ports and discharging ports of the airing warehouse and the finished product temporary storage warehouse correspondingly. The consistency and the yield of the product quality after the sheet rubber is dried are improved, and the drying uniformity and the drying efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber automated processing, in particular to a production line layout for automatic storage and drying of sheet-shaped natural rubber. Background Art

[0002] Natural rubber is divided into smoked rubber, standard rubber, crepe rubber and latex according to the manufacturing process and appearance. Smoked rubber is the most representative variety of natural rubber. It was once the variety with the largest consumption and the widest application. Its main use is in the production and manufacturing of rubber tires, cables and conveyor belts. Its production process is mainly to make smoked rubber sheets after filtering, acid coagulation, sheeting, drying and smoking. Crepe rubber is mainly made of latex clots or mixed rubber as raw materials, which are washed, pressed and refined into rubber with wrinkles on the surface, and dried naturally or with hot air. Crepe rubber is divided into three types according to the appearance, chemical composition and physical and mechanical properties. The quality is assessed, including white crepe, brown crepe and black crepe. Each type is divided into several grades, and there are thin and thick sheets.

[0003] At present, in the sheet rubber drying process, due to the uneven skills of the workers, the baking process is not properly supervised and the firepower is not well controlled, resulting in the product being under-baked, and the residual moisture causing the film to bubble and become uncooked, which in turn causes mildew. Production practice shows that the drying temperature range is a parameter that must be paid attention to, because temperatures that are too high or too low will lead to the production of defective products. For example, in the traditional production process, the finished product compliance rate of smoked sheet rubber is about 75%, and the compliance rate of grades above RSS3 is about 50%. At the same time, due to the low degree of automation in the natural rubber production process, a large amount of manual labor is required to transport and control materials throughout the production process. In addition, the current low degree of drying uniformity when drying sheet rubber makes it difficult to ensure uniform product quality, and it often takes a lot of time to achieve the drying effect.

[0004] Therefore, in order to solve the problems of low automation and low yield of the existing flaky natural rubber production process, the inability to timely monitor and control the status of each production equipment during the production process, uneven drying, high manual operation intensity, and low production efficiency, it is necessary to develop a production line layout for automatic storage and drying of flaky natural rubber. Summary of the invention

[0005] In order to solve the problems of the prior art, the purpose of the utility model is to provide a production line layout for automatic storage and drying of sheet natural rubber, which improves the consistency of product quality and the yield rate by automatically controlling the storage and drying equipment; on the other hand, through the full control of the production process, the status of each production equipment is timely monitored and controlled, the labor intensity of employees is reduced, and the production efficiency is improved; the specific contents are as follows:

[0006] A production line layout for automatic storage and drying of sheet-shaped natural rubber comprises a loading section, a drying warehouse, a heat pump drying warehouse, a finished product buffer warehouse, and a finished product unloading section, wherein the loading section conveys rubber sheets through a feed conveyor, and the unloading section conveys rubber sheets through a finished product conveyor; the rubber sheets are hung on hanging racks through hanging rods in the drying warehouse, the heat pump drying warehouse, and the finished product buffer warehouse; the hanging racks are respectively connected to the tracks in the drying warehouse, the finished product buffer warehouse, and the heat pump drying warehouse in a rolling manner; a shuttle car is arranged between the loading section and the drying warehouse, the finished product buffer warehouse and the finished product unloading section, the drying warehouse and the heat pump drying warehouse, and the finished product buffer warehouse and the heat pump drying warehouse for conveying the hanging rack; the shuttle car comprises a transverse track and a car body, and the transverse track is respectively located at the inlet and outlet of the drying warehouse and the finished product buffer warehouse.

[0007] Furthermore, the loading section includes a film hanging device, a film hanging robot, a loading buffer conveyor, a hanging rod robot, and an elevator; the film enters the feeding end of the film hanging device from the feed conveyor, and multiple films are arranged side by side in sequence above the position where the hanging rod of the film hanging device conveying channel can be lifted up and down; the film hanging robot is respectively connected to the hanging rod interface of the film hanging device and the loading buffer conveyor; the hanging rod robot is respectively connected to the loading buffer conveyor and the hanging rod interface set on the hanger of the elevator.

[0008] Furthermore, the finished product unloading section includes an elevator, a hanging rod robot, and an unloading buffer conveyor; the hanging rod robot is respectively connected to the unloading buffer conveyor and the hanging rod interface arranged on the upper bracket of the elevator; the unloading buffer conveyor is connected to the finished product conveyor.

[0009] Furthermore, the heat pump drying warehouse includes a heat pump device, a pipeline system, a box, a track, and an external pipeline system; the pipeline system is respectively connected to the heat pump device and the box; the track is fixed to the inside of the box; and the external pipeline system is respectively connected to the box and the drying warehouse.

[0010] Furthermore, the box body of the heat pump drying store comprises a box frame and a partition; the box frame is arranged and installed inside the box body, and is composed of a number of parallel frame structures; the plane where the box frame is located is parallel to the plane where the entrance of the heat pump drying store is located; the partition is arranged and installed inside the box body, and its plate surface is perpendicular to the plane where the box frame is located and divides the box body equally in the width direction; the depth of the partition is less than the depth of the box body, the outward end of the partition is flush with the entrance of the box body, and the inward end keeps a certain distance from the inner end of the box body; the rails are respectively arranged on both sides of the partition inside the box body, and the two sides of the partition can be connected to the hanger; the connection points of the box body with the pipeline system and the connection points with the external pipeline system are respectively located on the side walls on both sides of the box body inlet.

[0011] Furthermore, it also includes a plurality of windshield roller blinds, which are arranged and installed on the top of the box frame, respectively located on both sides of the partition and the width of the windshield roller blinds is less than half of the width of the box frame; two adjacent windshield roller blinds located on the same side of the partition are respectively close to the partition and the box frame; the windshield roller blinds include a roller blind, a rotating shaft and a driving device; one end of the roller blind is fixedly connected to the rotating shaft, and the driving device is rotationally fixedly matched with one end of the rotating shaft; after all the brackets enter the interior of the box body, the windshield roller blinds are lowered, and at this time, the positions of the brackets and the windshield roller blinds alternate with each other.

[0012] Furthermore, a transverse windshield plate 116 is provided below the track 15 below the position corresponding to each windshield roller blind.

[0013] The rubber materials are cut and arranged side by side, and the moisture content of the incoming materials is ≤35%: the thickness of the sheets is 3-12mm; after being transported to the feeding section by the feeding conveyor, the rubber sheets are hung on the hanging rod by the hanging device 2, and then the hanging rod with the hanging rubber sheets is moved to the feeding buffer conveyor 4 by the hanging robot 3, and then the hanging rod in the feeding buffer conveyor 4 is moved to the hanging rack 10 by the hanging robot 5. Then, the hanging rack 10 is moved to the drying warehouse 7 by the shuttle car 9 to drip-dry the rubber sheets on the hanging rack 10, and the ambient temperature range is maintained at 20-40°C during drying, and the ambient humidity is ≤80%, and the moisture content of the rubber sheets after drying is ≤15%; then, the hanging rack 10 after drip-drying in the drying warehouse 7 is moved to the heat pump drying warehouse 1 by the shuttle car 9 for drying. After the rack 10 is in place in the heat pump drying warehouse 1, the windproof roller curtain in the heat pump drying warehouse 1 is lowered, and then the heat pump device 12 is started to allow the hot air to pass through the racks 10 arranged in the heat pump drying warehouse 1 through the pipeline system 13, and then the hot air is discharged from the external pipeline system 14. The drying temperature range is 80-90°C during drying, and the moisture content of the film after drying is ≤1%. After drying, the rack 10 is moved to the finished product buffer warehouse 8 by the shuttle car 9, and the film is unloaded through the finished product unloading section and then conveyed by the finished product conveyor.

[0014] The utility model has the following beneficial effects compared with the prior art:

[0015] (i) The utility model improves the consistency of product quality and yield rate of sheet rubber after drying, improves the automation degree and production efficiency of the production line, and reduces the labor intensity of employees.

[0016] (ii) The entire drying process is segmented, and a drying warehouse is set up to pre-dehydrate the film on the rack, initially reduce the moisture content of the film, and improve the overall drying efficiency.

[0017] (3) By installing windproof roller shutters in the heat pump drying warehouse, hot air is ensured to pass through each rack in turn, so that the film is heated more evenly during the drying process, thereby improving the drying quality and drying efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the production line described in the utility model;

[0019] Figure 2 This is a schematic diagram of the connection relationship between the heat pump drying storehouse and the shuttle vehicle of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the heat pump drying storehouse described in the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the heat pump drying storehouse of the utility model;

[0022] Figure 5 This is a top view of the heat pump drying storehouse of the utility model;

[0023] Figure 6 This is a front cross-sectional view of the heat pump drying store described in the utility model.

[0024] In the figure:

[0025] 1—heat pump drying room, 11—box body, 111—box frame, 112—partition board, 113—rolling curtain,

[0026] 114 - shaft, 115 - drive device, 116 - windshield, 12 - heat pump device, 13 - pipe

[0027] Road system, 14—external pipeline system, 15—track;

[0028] 2-piece hanging device, 3-piece hanging robot, 4-buffer conveyor, 5-hanging rod robot, 6-lift

[0029] Drop machine, 7-drying warehouse, 8-finished product buffer warehouse, 9-shuttle car, 91-horizontal track, 92

[0030] —body, 10—rack. DETAILED DESCRIPTION

[0031] In order to make the technical means and creative features realized by the utility model and achieve the purpose of being easy to understand, the technical solution of the invention is further explained below in combination with one of the embodiments and specific implementation methods of a ground subsidence evaluation and early warning control method provided by the utility model.

[0032] like Figure 1-6 As shown, the specific embodiments given for the invention are as follows:

[0033] The invention discloses a production line layout used in a method for automatic storage and drying of sheet-shaped natural rubber, comprising a loading section, a drying warehouse 7, a heat pump drying warehouse 1, a finished product buffer warehouse 8, and a finished product unloading section. The loading section conveys the rubber sheets through a feed conveyor, and the unloading section conveys the rubber sheets through a finished product conveyor. The rubber sheets in the drying warehouse 7, the heat pump drying warehouse 1, and the finished product buffer warehouse 8 are all hung on a hanging rack 10 through hanging rods. The hanging rack 10 is respectively connected to the tracks 15 in the drying warehouse 7, the finished product buffer warehouse 8, and the heat pump drying warehouse 1 in a rolling manner. A shuttle vehicle 9 is provided between the loading section and the drying warehouse 7, the finished product buffer warehouse 8 and the finished product unloading section, the drying warehouse 7 and the heat pump drying warehouse 1, and the finished product buffer warehouse 8 and the heat pump drying warehouse 1 for conveying the hanging rack 10. The shuttle vehicle 9 includes a transverse track 91 and a vehicle body 92, and the transverse track is respectively located at the inlet and outlet of the drying warehouse 7 and the finished product buffer warehouse 8. The shuttle vehicle 9 includes a transverse track 91 and a vehicle body 92, and the transverse track is respectively located at the inlet and outlet of the drying warehouse 7 and the finished product buffer warehouse 8.

[0034] The loading section includes a film hanging device 2, a film hanging robot 3, a loading buffer conveyor 4, a hanging rod robot 5, and an elevator 6; the film enters the feeding end of the film hanging device 2 from the feed conveyor, and multiple films are arranged side by side in sequence above the position where the hanging rod of the conveying channel of the film hanging device 2 can be raised and lowered; the film hanging robot 3 is respectively connected to the hanging rod interface of the film hanging device 2 and the loading buffer conveyor 4; the hanging rod robot 5 is respectively connected to the loading buffer conveyor 4 and the hanging rod interface of the hanger 10 arranged on the elevator 6.

[0035] The finished product unloading section includes an elevator 6, a hanging rod robot 5, and an unloading buffer conveyor 4; the hanging rod robot 5 is respectively connected to the unloading buffer conveyor 4 and the hanging rod interface arranged on the hanging bracket 10 of the elevator 6; the unloading buffer conveyor 4 is connected to the finished product conveyor.

[0036] The heat pump drying warehouse 1 includes a heat pump device 12, a pipeline system 13, a box 11, a track 15, and an external pipeline system 14; the pipeline system 13 is respectively connected to the heat pump device 12 and the box 11; the track 15 is fixed to the inside of the box 11; the external pipeline system 14 is respectively connected to the box 11 and the drying warehouse 7.

[0037] The box body 11 of the heat pump drying storage 1 includes a box frame 111 and a partition 112; the box frame 111 is arranged inside the box body 11, and is composed of a plurality of parallel frame structures; the partition 112 is arranged inside the box body 11, and its plate surface is perpendicular to the plane where the box frame 111 frame is located and divides the box body 11 equally in the width direction; the depth of the partition 112 is less than the depth of the box body 11, and the outer end of the partition 112 is flush with the entrance of the box body 11, and the inner end is kept at a certain distance from the inner end of the box body 11; rails 15 are respectively arranged on both sides of the partition 112 inside the box body 11, and both sides of the partition 112 can pass through the hanger 10; the connection points of the box body 11 and the pipeline system 13 and the connection points with the external pipeline system 14 are respectively located on the side walls on both sides of the inlet of the box body 11.

[0038] It also includes a number of windshield roller blinds, which are installed on the top of the box frame 111, respectively located on both sides of the partition 112, and the width of the windshield roller blinds is less than half the width of the box frame 111; the two adjacent windshield roller blinds located on the same side of the partition 112 are respectively close to the partition 112 and the box frame 111; the windshield roller blinds include roller blinds 113, rotating shafts 114 and driving devices 115; one end of the roller blinds 113 is fixedly connected to the rotating shaft 114, and the driving device 115 is rotationally fixedly matched with one end of the rotating shaft 114; after the bracket 10 is fully entered into the box body 11, the windshield roller blinds are lowered, and at this time, the positions of the bracket 10 and the windshield roller blinds are alternated. A horizontal windshield plate 116 is provided under the track 15 below the position corresponding to each windshield roller blind. Prevent hot air from passing under the track 15

[0039] A method for automatically storing and drying sheet-like natural rubber comprises the following steps:

[0040] S1, buffer arrangement, rubber material cutting, arrange the films cut to a certain length side by side, so that they become multiple films in a row, so as to facilitate the next link of hanging film loading; the moisture content of the incoming material is ≤35%: the film thickness is 3-12mm; S2, hanging film loading, after being transported to the loading section by the feeding conveyor, the film hanging device 2 hangs the film on the hanging rod, and then the hanging rod with the film is moved to the loading buffer conveyor 4 by the hanging robot 3, and then the hanging rod in the loading buffer conveyor 4 is moved to the hanger 10 by the hanging robot 5. S3, drying, then the shuttle 9 moves the rack 10 to the drying warehouse 7 to drip and dry the film on the rack 10, and the ambient temperature range is maintained at 20-40°C during drying, the ambient humidity is ≤80%, and the moisture content of the film after drying is ≤15%; S4, drying, then the shuttle 9 moves the rack 10 that has been dripped and dried in the drying warehouse 7 to the heat pump drying warehouse 1 for drying. After the rack 10 enters the heat pump drying warehouse 1 and is in place, the windproof roller curtain in the heat pump drying warehouse 1 is lowered, and then the heat pump device 12 is started to pass the hot air through the pipe system 13 to pass through the racks 10 arranged in the heat pump drying warehouse 1, and then the hot air is discharged from the external pipe system 14. The drying temperature range is 80-90°C during drying, and the moisture content of the film after drying is ≤1%. S5, take the film and unload it. After drying, the rack 10 is moved to the finished product buffer 8 by the shuttle 9. After the film is unloaded through the finished product unloading section, it is transported by the finished product conveyor. S6, packing: After taking the film, pack the finished film.

[0041] It should be understood that the above specific embodiments are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. The claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or the equivalent forms of such scope and boundaries.

Claims

1. A production line layout for automatic storage and drying of sheet natural rubber, characterized by: The invention comprises a loading section, a drying warehouse (7), a heat pump drying warehouse (1), a finished product buffer warehouse (8), and a finished product unloading section. The loading section conveys the film through a feed conveyor, and the unloading section conveys the film through a finished product conveyor. The film is hung on a hanging rack (10) through hanging rods in the drying warehouse (7), the heat pump drying warehouse (1), and the finished product buffer warehouse (8). The hanging rack (10) is respectively connected to the tracks (10) in the drying warehouse (7), the finished product buffer warehouse (8), and the heat pump drying warehouse (1). 5) are connected in a rolling manner; a shuttle vehicle (9) is arranged between the loading section and the drying warehouse (7), the finished product buffer warehouse (8) and the finished product unloading section, the drying warehouse (7) and the heat pump drying warehouse (1), and the finished product buffer warehouse (8) and the heat pump drying warehouse (1) for conveying the hanger (10), the shuttle vehicle (9) comprising a transverse track (91) and a vehicle body (92), and the transverse track is respectively located at the inlet and outlet of the drying warehouse (7) and the finished product buffer warehouse (8).

2. A production line layout for automatic storage and drying of sheet-shaped natural rubber as claimed in claim 1, characterized in that: The loading section comprises a film hanging device (2), a film hanging robot (3), a loading buffer conveyor (4), a hanging rod robot (5), and an elevator (6); the film enters the feeding end of the film hanging device (2) from the feeding conveyor, and is hung on the hanging rod through the film hanging device (2); the film hanging robot (3) is respectively connected to the hanging rod interface of the film hanging device (2) and the loading buffer conveyor (4); the hanging rod robot (5) is respectively connected to the loading buffer conveyor (4) and the hanging rod interface of the hanging bracket (10) arranged on the elevator (6).

3. A production line layout for automatic storage and drying of sheet-shaped natural rubber as claimed in claim 1, characterized in that: The finished product unloading section comprises an elevator (6), a hanging rod robot (5), and an unloading buffer conveyor (4); the hanging rod robot (5) is respectively connected to the unloading buffer conveyor (4) and a hanging rod interface arranged on a hanging frame (10) on the elevator (6); the unloading buffer conveyor (4) is connected to the finished product conveyor.

4. A production line layout for automatic storage and drying of sheet-shaped natural rubber as claimed in claim 1, characterized in that: The heat pump drying storehouse (1) comprises a heat pump device (12), a pipe system (13), a box (11), a track (15), and an external pipe system (14); the pipe system (13) is respectively connected to the heat pump device (12) and the box (11); the track (15) is fixedly connected to the inside of the box (11); and the external pipe system (14) is respectively connected to the box (11) and the drying storehouse (7).

5. A production line layout for automatic storage and drying of sheet-shaped natural rubber as claimed in claim 4, characterized in that: The box body (11) of the heat pump drying storehouse (1) comprises a box frame (111) and a partition (112); the box frame (111) is arranged inside the box body (11) and is composed of a plurality of parallel frame structures; the plane where the box frame (111) is located is parallel to the plane where the entrance of the heat pump drying storehouse (1) is located; the partition (112) is arranged inside the box body (11), the plate surface of which is perpendicular to the plane where the box frame (111) is located and divides the box body (11) equally in the width direction; the depth of the partition (112) is less than the width of the partition (112). The depth of the box (11) is such that the outer end of the partition (112) is flush with the inlet of the box (11), and the inner end is kept at a certain distance from the inner end of the box (11); the rails (15) are respectively arranged on both sides of the partition (112) inside the box (11), and the hanger (10) can be accessed on both sides of the partition (112); the connection point between the box (11) and the pipeline system (13) and the connection point with the external pipeline system (14) are respectively located on the side walls on both sides of the inlet of the box (11).

6. A production line layout for automatic storage and drying of sheet-shaped natural rubber as claimed in claim 5, characterized in that: The invention also comprises a plurality of wind-shielding rolling curtains, which are arranged and installed on the top of the box frame (111), respectively located on both sides of the partition (112), and the width of the wind-shielding rolling curtains is less than half of the width of the box frame (111); two adjacent wind-shielding rolling curtains located on the same side of the partition (112) are respectively close to the partition (112) and the box frame (111); the wind-shielding rolling curtain comprises a rolling curtain (113), a rotating shaft (114) and a driving device (115); one end of the rolling curtain (113) is fixedly connected to the rotating shaft (114), and the driving device (115) is rotationally fixedly matched with one end of the rotating shaft (114); after the hanging bracket (10) completely enters the interior of the box body (11), the wind-shielding rolling curtain is lowered, and at this time, the positions of the hanging bracket (10) and the wind-shielding rolling curtain are alternated with each other.

7. A production line layout for automatic storage and drying of sheet-shaped natural rubber as claimed in claim 6, characterized in that: A transverse windshield plate (116) is arranged below the track (15) below the position corresponding to each windshield roller curtain.

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