Woven bag and woven bag production process

Abstract

The invention relates to the field of woven bag processing, in particular to a woven bag and a woven bag production technology.The woven bag comprises a fixing frame, a glue extruding barrel is fixedly connected to the fixing frame, a material extruding screw is rotationally connected into the glue extruding barrel, two discharging pipes are fixedly connected to the glue extruding barrel, and two conveying rollers are rotationally connected to the lower end of the fixing frame; the two conveying rollers are fixedly connected with gears, the two gears are in meshing transmission, one conveying roller and the material extruding screw rod are fixedly connected with belt wheels, the two belt wheels are connected through a synchronous belt, a gluing mechanism is arranged above the two conveying rollers and comprises two gluing heads, the two gluing heads are rotationally connected to the fixing frame, and the two gluing heads are arranged on the fixing frame. According to the woven bag film coating device, film coating treatment can be stopped while a woven bag stops running, and the proportion of waste materials is further reduced.

Description

Technical Field

[0001] The invention relates to the field of woven bag processing, in particular to a woven bag and a woven bag production process thereof. Background Art

[0002] Woven bags, also known as snakeskin bags, are a type of plastic bag. Their raw materials are generally various chemical plastic raw materials such as polyethylene and polypropylene. The production process of woven bags includes drawing, weaving, printing, sewing and other steps. Among them, drawing is to heat and melt the plastic raw materials and then draw them into filaments, and weaving is to make these filaments into bags through a specific weaving process. After the plastic filaments are woven into bags, they need to be coated on the surface. However, due to the asynchronous transmission mechanism and coating mechanism of conventional coating equipment, plastic will accumulate on the surface of the woven bag after it stops running, thereby increasing the proportion of waste and wasting resources. Therefore, this application is proposed to address the above problems. Summary of the invention

[0003] In view of this, the technical problem to be solved by the present invention is to provide a woven bag and a woven bag production process thereof. The present invention can stop the coating process when the woven bag stops running, thereby further reducing the proportion of waste materials.

[0004] A woven bag production device comprises a fixed frame, a rubber extrusion cylinder is fixedly connected to the fixed frame, an extrusion screw is rotatably connected inside the rubber extrusion cylinder, two discharge pipes are fixedly connected to the rubber extrusion cylinder, and the lower end of the fixed frame is rotatably connected to two conveying rollers, both of which are fixedly connected to gears, and the two gears are meshed for transmission, one of the conveying rollers and the extrusion screw are fixedly connected to pulleys, the two pulleys are connected by a synchronous belt, and a glue coating mechanism is arranged above the two conveying rollers.

[0005] The gluing mechanism comprises two gluing heads, both of which are rotatably connected to a fixed frame, both of which are provided with a glue discharge port, and both of which are fixedly connected with a glue inlet pipe.

[0006] Torsion springs are installed at the rotational connection points between the two glue coating heads and the fixing frame.

[0007] A plurality of spray heads are fixedly connected to both left and right sides of the lower end of the fixing frame, and the plurality of spray heads are connected to a water pump.

[0008] The two glue coating heads are both provided with sliding grooves, and a scraper is slidably connected between the two sliding grooves.

[0009] The lower ends of the two glue coating heads are fixedly connected with scrapers.

[0010] The rubber extrusion cylinder is fixedly connected with a driving motor, and the extrusion screw is fixedly connected to the output shaft of the driving motor.

[0011] The surfaces of the two conveying rollers are both provided with a plurality of anti-slip ridges. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0013] Figure 1 and Figure 2 It is a schematic diagram of the overall structure of a woven bag production device;

[0014] Figure 3 It is a schematic diagram of the structure of the conveying roller;

[0015] Figure 4 It is a structural schematic diagram of the glue coating head;

[0016] Figure 5 It is a schematic diagram of the structure of the nozzle;

[0017] Figure 6 It is a structural schematic diagram of a rubber extrusion cylinder;

[0018] Figure 7 It is a schematic diagram of the structure of the scraper;

[0019] Figure 8 It is a structural schematic diagram of the chute. DETAILED DESCRIPTION

[0020] The present invention is described in detail with reference to the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 3-4 ,

[0022] A woven bag production device includes a fixed frame 101, to which a rubber extrusion cylinder 102 is fixedly connected by bolts, an extrusion screw 103 is rotatably connected inside the rubber extrusion cylinder 102 by a bearing, two discharge pipes 104 are fixedly connected to the rubber extrusion cylinder 102, and the lower end of the fixed frame 101 is rotatably connected to two conveying rollers 301 by a bearing, the two conveying rollers 301 are both fixedly connected by bolts with gears 303, the two gears 303 are meshed for transmission, one of the conveying rollers 301 and the extrusion screw 103 is fixedly connected with a pulley 304 by a key, and the two pulleys 304 are connected by a synchronous belt.

[0023] When using the production device, the staff first adds plastic particles into the glue extrusion cylinder 102, then passes the woven woven bag through the glue coating mechanism, and then passes it between the two conveying rollers 301, and uses the relative rotation of the two conveying rollers 301 to convey the woven bag downward.

[0024] During the conveying process of the woven bag, the molten plastic is extruded through the two discharge pipes 104 by controlling the rotation of the extrusion screw 103, and then the discharge pipe 104 is connected to the glue coating mechanism, and the molten plastic is covered on the surface of the woven bag in a film shape through the glue coating mechanism. With the cooperation of the two pulleys 304 and the synchronous belt connection, the extrusion screw 103 can drive the two conveying rollers 301 to rotate relative to each other while rotating, thereby realizing the synchronous control of the conveying rollers 301 and the extrusion screw 103, and realizing the function of coating while conveying the woven bag. When it is necessary to stop the conveying of the woven bag, the extrusion screw 103 stops rotating, and the two conveying rollers 301 also stop rotating at the same time, thereby realizing the function of stopping coating on the surface of the woven bag when the woven bag stops running, and there is no need to control the extrusion screw 103 separately, thereby avoiding the phenomenon of plastic accumulation on the surface of the woven bag, further ensuring the quality of the woven bag, reducing the proportion of waste, and saving resources.

[0025] See also Figure 7-8 ,

[0026] The gluing mechanism comprises two gluing heads 201 , which are rotatably connected to the fixing frame 101 via bearings. A glue discharge port 204 is provided on the two gluing heads 201 , and a glue inlet pipe 203 is fixedly connected to the two gluing heads 201 .

[0027] By connecting the glue inlet pipe 203 and the discharge pipe 104 on the same side through a hose, when the molten plastic in the glue extrusion cylinder 102 is extruded, it can enter the glue coating head 201 through the hose, and finally be discharged through the glue discharge port 204 on the glue coating head 201 and smeared on the surface of the woven bag.

[0028] See also Figure 4 ,

[0029] Torsion springs 202 are installed at the rotating connection between the two gluing heads 201 and the fixed frame 101. Under the action of the torsion springs 202, the two gluing heads 201 can have a tendency to rotate upward, so that during the process of conveying the woven bag, the two gluing heads 201 can be tightly attached to the surface of the woven bag, thereby achieving a uniform coating effect, avoiding the phenomenon of the gluing heads 201 being separated from the woven bag, and further ensuring the overall quality of the woven bag.

[0030] See also Figure 4 ,

[0031] A plurality of spray heads 207 are fixedly connected to the left and right sides of the lower end of the fixing frame 101 by bolts, and the plurality of spray heads 207 are all connected to a water pump.

[0032] After the film coating on the surface of the woven bag is completed, cold water is sprayed out through multiple nozzles 207 by a water pump, and the cold water is sprayed on the surface of the woven bag, thereby realizing the function of cooling the woven bag and promoting the cooling and shaping of the plastic film.

[0033] See also Figure 7-8 ,

[0034] The two glue coating heads 201 are both provided with a slide groove 206 , and a scraper 207 is slidably connected between the two slide grooves 206 .

[0035] After the coating is completed, the staff inserts the scraper 207 into the two slide grooves 206. The two slide grooves 206 cooperate to limit the scraper 207, thereby ensuring that the scraper 207 moves in a straight line. The scraper 207 can scrape off the residual plastic at the glue discharge port 204 of the two glue coating heads 201, thereby avoiding blockage of the glue discharge port 204 after cooling and solidification.

[0036] See also Figure 1-3 ,

[0037] The two glue coating heads 201 are welded with scrapers 205 at the lower ends. The scrapers 205 are used to scrape off excess plastic on the surface of the woven bag to ensure the smooth surface of the woven bag and further improve the quality of the woven bag. At the same time, the scraped plastic will accumulate above the scrapers 205, which is convenient for subsequent scraping using scraper 207.

[0038] See also Figure 3 ,

[0039] The rubber extrusion cylinder 102 is fixedly connected to a driving motor 305 via bolts, and the extrusion screw 103 is fixedly connected to the output shaft of the driving motor 305 .

[0040] The extrusion screw 103 is driven to rotate by the driving motor 305 to realize the functions of extruding the plastic and conveying the woven bag.

[0041] See also Figure 3 ,

[0042] The surfaces of the two conveying rollers 301 are provided with multiple anti-skid ridges 302, which serve to increase the friction between the conveying rollers 301 and the surface of the woven bag, thereby preventing the surface of the woven bag from slipping after being stained with cold water, ensuring that the woven bag runs at a uniform speed, thereby ensuring uniform coating treatment.

[0043] A woven bag production process, the process comprising the following steps:

[0044] Step 1: Add plastic particles into the glue extrusion cylinder 102, then pass the woven woven bag through the glue coating mechanism, and then pass it between the two conveying rollers 301, and use the two conveying rollers 301 to rotate relative to each other to convey the woven bag downward;

[0045] Step 2: Control the rotation of the extrusion screw 103 to extrude the molten plastic through the two discharge pipes 104, and then connect the discharge pipes 104 to the glue coating mechanism, so that the molten plastic is covered on the surface of the woven bag in a film shape through the glue coating mechanism;

[0046] Step 3: Use a water pump to spray cold water through multiple nozzles 207, and spray the cold water on the surface of the woven bag;

[0047] Step 4: scrape off the excess plastic on the surface of the woven bag by two scrapers 205, and the scraped excess plastic is accumulated above the two scrapers 205;

[0048] Step 5: Use the scraper 207 to scrape away the residual plastic at the glue discharge ports 204 of the two glue coating heads 201 .

[0049] A woven bag produced by a production device, the raw materials of which include: polypropylene, talcum powder, antioxidant, masterbatch, plasticizer, lubricant and dispersant.

Claims

1. A woven bag production device, characterized in that: The invention comprises a fixed frame (101), a rubber extrusion cylinder (102) is fixedly connected to the fixed frame (101), an extrusion screw (103) is rotatably connected inside the rubber extrusion cylinder (102), two discharge pipes (104) are fixedly connected to the rubber extrusion cylinder (102), two conveying rollers (301) are rotatably connected to the lower end of the fixed frame (101), the two conveying rollers (301) are both fixedly connected to gears (303), the two gears (303) are meshed for transmission, one of the conveying rollers (301) and the extrusion screw (103) are both fixedly connected to a pulley (304), the two pulleys (304) are connected via a synchronous belt, and a glue coating mechanism is arranged above the two conveying rollers (301).

2. A woven bag production device according to claim 1, characterized in that: The gluing mechanism comprises two gluing heads (201), both of which are rotatably connected to a fixed frame (101), both of which are provided with a glue discharge port (204), and both of which are fixedly connected to a glue inlet pipe (203).

3. A woven bag production device according to claim 2, characterized in that: Torsion springs (202) are installed at the rotational connection points between the two glue coating heads (201) and the fixing frame (101).

4. A woven bag production device according to claim 3, characterized in that: A plurality of spray heads (207) are fixedly connected to both left and right sides of the lower end of the fixing frame (101), and the plurality of spray heads (207) are all connected to a water pump.

5. A woven bag production device according to claim 4, characterized in that: The two glue coating heads (201) are both provided with a sliding groove (206), and a scraper (207) is slidably connected between the two sliding grooves (206).

6. A woven bag production device according to claim 5, characterized in that: The lower ends of the two glue coating heads (201) are both fixedly connected with scrapers (205).

7. A woven bag production device according to claim 6, characterized in that: The rubber extrusion cylinder (102) is fixedly connected to a driving motor (305), and the extrusion screw (103) is fixedly connected to an output shaft of the driving motor (305).

8. A woven bag production device according to claim 1, characterized in that: The surfaces of the two conveying rollers (301) are both provided with a plurality of anti-slip ridges (302).

9. A woven bag production process, characterized in that: The process includes the following steps: Step 1: Add plastic particles into the glue extrusion cylinder (102), then pass the woven woven bag through the glue coating mechanism, and then pass it between two conveying rollers (301), and use the two conveying rollers (301) to rotate relative to each other to convey the woven bag downward; Step 2: controlling the rotation of the extrusion screw (103) to extrude the molten plastic through two discharge pipes (104), and then connecting the discharge pipes (104) to a glue coating mechanism, so that the molten plastic is coated on the surface of the woven bag in a film shape through the glue coating mechanism; Step 3: Use a water pump to spray cold water through multiple nozzles (207) so that the cold water is sprayed on the surface of the woven bag; Step 4: scraping off the excess plastic on the surface of the woven bag by two scrapers (205), and the scraped excess plastic is accumulated above the two scrapers (205); Step 5: Use a scraper (207) to scrape off the residual plastic at the glue discharge ports (204) of the two glue coating heads (201).

10. A woven bag produced by a production device, the raw materials of which include: Polypropylene, talc, antioxidant, masterbatch, plasticizer, lubricant and dispersant.

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