Woven bag film covering edge strip on-line recycling device

Abstract

The utility model discloses an online recovery device for woven bag film covering edge strips, and relates to the technical field of plastic film leftover material recovery. The hopper is arranged at the bottom of the ventilation frame; the collection box is arranged on one side of the ventilation frame; an exhaust fan is arranged at the top of the collection box; and a plurality of heating guide plates are fixedly clamped on the two sides in the collection box from top to bottom. Through the arrangement of the ventilation frame, the hopper and the collection box, the problems that when one end of an edge strip enters the conveying structure for the first time or again due to breakage, the end of the edge strip may be separated from the conveying structure through a ventilation gap, and the end of the edge strip is difficult to drag a subsequent edge strip due to rapid melting in an extruder, so that the edge strip cannot be damaged are solved. And the extruder and the fan need to be operated continuously, so that the recovery expenditure is greatly increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of recycling plastic film scraps, in particular to an online recycling device for woven bag film edge strips. Background Art

[0002] Woven bags are a type of plastic bag used for packaging. Their raw materials are generally various chemical plastic materials such as polyethylene and polypropylene. They have the advantages of being waterproof, breathable, moisture-proof, impact-resistant, low-cost, and reusable. In the process of packaging materials, woven bags will continuously produce plastic strips. In order to facilitate the collection and reuse of these strips, online strip recycling devices are usually used to recycle a large number of strips to reduce the labor intensity of the staff. However, it still has the following disadvantages in actual use:

[0003] 1. The utility model with publication number CN207207065U discloses an online recycling and granulation device for plastic film edge strips, wherein the horizontal conveying pipe is divided into three sections; a longitudinal distance is separated between the front end of the first horizontal pipe and the rear end of the second horizontal pipe to form a longitudinal gap; an outer sleeve is sleeved on the periphery of the front section of the first horizontal pipe, the front end of the outer sleeve is welded to the rear end of the second horizontal pipe, a circular first radial gap is formed between the outer sleeve and the front end of the first horizontal pipe, and an annular transfer air cavity is formed between the outer sleeve and the front section of the first horizontal pipe; an air supply pipe is arranged between the air outlet of the fan and the transfer air cavity; the front end of the second horizontal pipe is sleeved on the first horizontal pipe. There is a second radial gap in an annular shape between the outer peripheries of the three horizontal tubes, and the second radial gap in an annular shape forms an annular air outlet. When the plastic film edge strips are being recycled, the online recycling device can prevent the plastic film edge strips from violently tumbling in the vertical conveying cylinder and gradually tangling into a ball, ensuring that the edge strips gradually and slowly fall into the feed port of the screw extruder in turn, and are not prone to material blockage. However, in actual operation, when one end of the edge strip begins to enter the inner side of the second horizontal tube, or the edge strip breaks and one end of the edge strip enters the second horizontal tube again, one end of the edge strip may escape from the conveying cylinder through the second radial gap, and the edge strip needs to be manually adjusted, reducing the processing efficiency;

[0004] 2. When recycling the coated edge strips, it is necessary to control the fan to continuously drive the air flow to drive the edge strips into the extruder for heating and melting. One end of the edge strip melts quickly when entering the extruder, making it difficult to drag the subsequent edge strips. In addition, the extruder and fan need to operate non-stop, which greatly increases the recycling costs. Utility Model Content

[0005] The purpose of the utility model is to provide an online recovery device for woven bag coated edge strips. Through a ventilation rack, a hopper and a collection box, the utility model solves the problem that when the online recovery device for edge strips is actually used, one end of the edge strip may escape from the conveying structure through the ventilation gap when entering the conveying structure for the first time or again due to breakage, and one end of the edge strip quickly melts when entering the extruder, making it difficult to drag subsequent edge strips, and the extruder and the fan need to operate non-stop, which greatly increases the recovery cost.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses an online recovery device for woven bag film edge strips, comprising a ventilation frame, a hopper and a collection box, wherein a ventilation support mesh tube is rotatably connected to one end of the ventilation frame, a heating tube is fixedly connected to the ventilation frame, and the heating tube is attached to the inner wall of the ventilation support mesh tube, a hopper is arranged at the bottom of the ventilation frame, a collection box is arranged at one side of the ventilation frame, an exhaust fan is arranged at the top of the collection box, and a plurality of heating guide plates are fixedly connected to both sides of the collection box from top to bottom;

[0008] By exhausting air in the collection box through the exhaust fan, the ventilation rack can be further exhausted, so that the edge strips enter the ventilation rack with the airflow and adhere to the surface of the ventilation support mesh tube with the airflow. The edge strips are rolled up by the rotation of the ventilation support mesh tube to avoid the entanglement of the edge strips, and one end of the edge strip will not be separated from the online recovery device with the airflow, so as to ensure the stability of the recovery. When the ventilation support mesh tube is rolling up the edge strips, the heating tube is started to heat, and the ventilation support mesh tube attached to the heating tube is further heated, so that the edge strips wrapped around the outside of the ventilation support mesh tube are heated and melted after reaching a certain temperature, and the molten edge strip droplets can fall into the material under the action of gravity. The particles are collected in the bucket and enter the next processing equipment. The structure is simple and the operation is convenient. At the same time, when the edge strips are continuously wound through the ventilation support mesh tube, it is only necessary to control the rotation of the ventilation support mesh tube to wind the edge strips. There is no need to start the exhaust fan to continuously exhaust air. It is only necessary to exhaust air again when the edge strips break accidentally so that the edge strips can be wound around the outer peripheral surface of the ventilation support mesh tube again, thereby reducing the recycling cost. When there are partially molten edge strip droplets entering the ventilation connecting pipe of the collection box with the air flow, the edge strip droplets are condensed through the ventilation connecting pipe, and the particles fall into the collection box under the action of gravity. The solidified particles are melted by heating the guide plate, which is convenient for the recovery of the edge strip droplets.

[0009] Furthermore, mounting frames are welded and fixed on both sides of the ventilation frame, and a discharge pipe is welded through one end of the bottom of the ventilation frame, and the discharge pipe is located at the bottom of the ventilation support mesh pipe;

[0010] The device can be installed at a suitable position through the mounting frame, which is convenient for the use of the recovery device. The molten edge strip droplets fall into the hopper through the discharge pipe under the action of gravity, which is convenient for further recovery and processing.

[0011] Furthermore, two limiting guide rollers are clamped in the ventilation frame, and the limiting guide rollers are located in the ventilation frame at the other end relative to the ventilation support mesh tube. A rotating motor is clamped through one side of the ventilation frame, and the rotating motor is connected through the ventilation frame and the ventilation support mesh tube. The rotating motor is located at the other side of the ventilation frame relative to the collection box.

[0012] The airflow can be guided by the limiting guide roller so that the edge strips can quickly fit onto the surface of the ventilation support mesh tube with the airflow. The rotation of the ventilation support mesh tube can be driven by the rotating motor to wind the edge strips. When the ventilation support mesh tube stably winds the edge strips, it is only necessary to control the rotation of the ventilation support mesh tube, and there is no need to start the exhaust fan to continuously exhaust air, thereby reducing recycling expenses. When the ventilation support mesh tube winds the edge strips, the heating tube is started to heat it up, and the ventilation support mesh tube fitted to the heating tube is further heated, so that the edge strips wrapped around the outer peripheral surface of the ventilation support mesh tube are heated and melted, so that the recovery device does not need to set up an additional extruder to extrude the edge strips, thereby simplifying the structure of the recovery device and reducing the cost of the device.

[0013] Furthermore, a first thermal insulation connecting pipe is welded through the bottom of the hopper, a second thermal insulation connecting pipe is welded through the outer peripheral surface of the first thermal insulation connecting pipe, and the hopper is welded through the bottom of the discharge pipe;

[0014] After entering the hopper, the molten edge strip droplets enter the first thermal insulation connecting pipe under the action of gravity, and are connected to the processing equipment through the first thermal insulation connecting pipe, so that the droplets can be further recovered and processed.

[0015] Furthermore, a ventilation connecting pipe is welded through the top of the collection box, a heat dissipation fin is welded and fixed on the outer peripheral surface of the ventilation connecting pipe, the ventilation connecting pipe is clamped through one side of the ventilation frame, and the top of the ventilation connecting pipe is plugged into the inner side of the ventilation support mesh pipe;

[0016] After the airflow enters the inner side of the ventilation connecting pipe, the heat dissipation area of ​​the ventilation connecting pipe is increased through the heat dissipation fins, the airflow is quickly cooled, and at the same time, the edge strip droplets passing through the ventilation connecting pipe can be condensed to prevent the edge strip droplets from entering the environment with the airflow.

[0017] Furthermore, an exhaust pipe is welded through the top of the collection box, the exhaust fan is clamped on the top of the exhaust pipe, and the other end of the second thermal insulation connecting pipe relative to the first thermal insulation connecting pipe is clamped on the bottom of one side of the collection box;

[0018] The exhaust fan can drive the air flow, further allowing the external air flow to enter the ventilation rack, so that one end of the edge strip enters the ventilation rack with the air flow for recycling and processing; when the edge strip droplets enter the ventilation connecting pipe and condense, the particles fall into the collection box under the action of gravity, and the droplets are melted by the heating guide plate, so that the droplets move along the heating guide plate under the action of gravity and enter the first insulation connecting pipe through the second insulation connecting pipe for further recycling and processing.

[0019] The utility model has the following beneficial effects:

[0020] 1. The utility model solves the problem that when the plastic film edge strips are recycled, the online recycling device can prevent the plastic film edge strips from tumbling violently and gradually tangling into a ball in the vertical conveying cylinder, and ensure that the edge strips gradually and slowly fall into the feed port of the screw extruder in turn, which is not easy to block the material. However, in actual operation, when one end of the edge strip begins to enter the inner side of the conveying cylinder, or the edge strip breaks and one end of the edge strip enters the conveying cylinder again, one end of the edge strip may escape from the conveying cylinder through the second radial gap, and the edge strip needs to be manually adjusted, thereby reducing the processing efficiency. The air flow is driven by the exhaust fan, so that the edge strip enters the ventilation rack with the airflow and fits to the outer peripheral surface of the ventilation support mesh tube under the action of the airflow. The rotation of the ventilation support mesh tube is driven by the rotating motor to reel in the edge strip, thereby avoiding the entanglement of the edge strip, and one end of the edge strip will not escape from the online recycling device with the airflow, thereby ensuring the stability of the recycling.

[0021] 2. The utility model solves the problem that when the coated edge strips are recycled, the fan needs to be controlled to continuously drive the air flow to drive the edge strips to enter the extruder for heating and melting, one end of the edge strip melts quickly when entering the extruder, making it difficult for it to drag the subsequent edge strips, and the extruder and the fan need to operate uninterruptedly, which greatly increases the recycling cost. When the ventilation support mesh tube is winding the edge strip, the heating tube is started to heat at the same time, and the ventilation support mesh tube attached to the heating tube is further heated, so that the edge strips wrapped around the outer peripheral surface of the ventilation support mesh tube are heated, and the edge strips are heated for a certain period of time to reach the temperature and then melted. The molten edge strip droplets fall into the hopper under the action of gravity and are collected and enter the next processing equipment. The structure is simple and the operation is convenient. At the same time, when the edge strips are continuously wound through the ventilation support mesh tube, it is only necessary to control the rotation of the ventilation support mesh tube to wind the edge strips, and there is no need to start the exhaust fan to continuously exhaust air. It is only necessary to exhaust air again when the edge strips are accidentally broken so that the edge strips are wound around the outer peripheral surface of the ventilation support mesh tube again, thereby reducing the recycling cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a structural diagram of the ventilation rack of the utility model;

[0024] Figure 3 It is a cross-sectional view of the ventilation rack of the utility model;

[0025] Figure 4 This is a structural diagram of the hopper of the utility model;

[0026] Figure 5 This is a structural diagram of the collection box of the utility model;

[0027] Figure 6 It is a cross-sectional view of the collection box of the utility model.

[0028] Reference numerals:

[0029] 1. Ventilation rack; 101. Rotating motor; 102. Discharging pipe; 103. Mounting rack; 104. Positioning guide roller; 105. Ventilation support mesh pipe; 106. Heating pipe; 2. Hopper; 201. First thermal insulation connecting pipe; 202. Second thermal insulation connecting pipe; 3. Collecting box; 301. Ventilation connecting pipe; 302. Heat dissipation fins; 303. Exhaust pipe; 304. Exhaust fan; 305. Heating guide plate. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0031] See also Figure 1-6 As shown, the utility model is an online recovery device for woven bag film edge strips, including a ventilation rack 1, a hopper 2 and a collection box 3, a ventilation support mesh tube 105 is rotatably clamped at one end of the ventilation rack 1, a heating tube 106 is clamped and fixed in the ventilation rack 1, and the heating tube 106 is attached to the inner wall of the ventilation support mesh tube 105, a hopper 2 is arranged at the bottom of the ventilation rack 1, a collection box 3 is arranged at one side of the ventilation rack 1, an exhaust fan 304 is arranged at the top of the collection box 3, and a plurality of heating guide plates 305 are clamped and fixed on both sides of the collection box 3 from top to bottom;

[0032] When it is necessary to recycle the film edge strips of the woven bag, turn on the exhaust fan 304 to drive the air flow, so that the outside air enters the ventilation rack 1, and drives one end of the edge strip to enter the ventilation rack 1, and at the same time control the rotating motor 101 to drive the rotation of the ventilation support mesh tube 105. When the edge strip is attached to the surface of the ventilation support mesh tube 105 with the airflow, the edge strip is wound by the rotation of the ventilation support mesh tube 105, and at the same time start the heating tube 106 to heat the ventilation support mesh tube 105, and further heat the edge strip wound on the outer peripheral surface of the ventilation support mesh tube 105, so that the edge strip reaches a certain temperature and melts after being wound for a certain period of time, and the melted edge strip is melted. The material can fall into the hopper 2 under the action of gravity, be collected and enter the next processing equipment. When the edge strip is stably wound, turn off the exhaust fan 304. When the edge strip breaks unexpectedly, just start the exhaust fan 304 again to exhaust air so that the edge strip can be wound around the outer peripheral surface of the ventilation support mesh tube 105 again. When partially melted edge strip droplets enter the ventilation connecting pipe 301 of the collecting box 3 with the air flow, the edge strip droplets are condensed through the ventilation connecting pipe 301, and the particles fall into the collecting box 3 under the action of gravity. The solidified particles are melted again by heating the guide plate 305 and the droplets are guided, so that the edge strip droplets enter the first insulation connecting pipe 201 for recovery.

[0033] Among them Figure 1-4 As shown, mounting frames 103 are welded and fixed on both sides of the ventilation frame 1, a discharge pipe 102 is welded through one end of the bottom of the ventilation frame 1, and the discharge pipe 102 is located at the bottom of the ventilation support mesh tube 105, and two limiting guide rollers 104 are clamped in the ventilation frame 1, and the limiting guide rollers 104 are located in the ventilation frame 1 relative to the other end of the ventilation support mesh tube 105, and a rotating motor 101 is clamped through one side of the ventilation frame 1, and the rotating motor 101 is connected to the ventilation support mesh tube 105 through the ventilation frame 1, and the rotating motor 101 is located at the other side of the ventilation frame 1 relative to the collection box 3;

[0034] A first heat-insulating connecting pipe 201 is welded through the bottom of the hopper 2, a second heat-insulating connecting pipe 202 is welded through the outer circumference of the first heat-insulating connecting pipe 201, and the hopper 2 is welded through the bottom of the discharge pipe 102;

[0035] The online recovery device is installed at a suitable position through the mounting frame 103, and the bottom of the first thermal insulation connecting tube 201 is connected to the next recovery and processing equipment. When the woven bag coated edge strips are recovered, the airflow drives the edge strips into the ventilation frame 1, and the airflow is guided by the limiting guide roller 104, so that the edge strips are quickly attached to the surface of the ventilation support mesh tube 105 with the airflow, and the rotating motor 101 drives the rotation of the ventilation support mesh tube 105 to wind the edge strips, and at the same time starts the heating tube 106 to heat, and further heats the ventilation support mesh tube 105 attached to the heating tube 106, so that the edge strips are heated and melted after reaching a certain temperature, and the molten droplets fall into the hopper 2 through the discharge pipe 102, and the droplets fall into the next recovery and processing equipment through the first thermal insulation connecting tube 201 for further recovery and processing.

[0036] Among them Figure 1 , 5 As shown in , 6, a ventilation connecting pipe 301 is welded through the top of the collection box 3, and a heat dissipation fin 302 is welded and fixed on the outer peripheral surface of the ventilation connecting pipe 301. The ventilation connecting pipe 301 is inserted into one side of the ventilation frame 1, and the top of the ventilation connecting pipe 301 is plugged into the inner side of the ventilation support mesh pipe 105. An exhaust pipe 303 is welded through the top of the collection box 3, and the exhaust fan 304 is clamped on the top of the exhaust pipe 303. The other end of the second thermal insulation connecting pipe 202 relative to the first thermal insulation connecting pipe 201 is inserted into the bottom of one side of the collection box 3;

[0037] When recycling the coated edge strips of the woven bag, turn on the exhaust fan 304 to drive the air flow, so that the outside air enters the ventilation rack 1, and the air flows through the ventilation support mesh tube 105 to make the edge strip fit the surface of the ventilation support mesh tube 105. The air enters the ventilation connecting pipe 301 to cool down and is discharged through the exhaust pipe 303. When the edge strip is stably wound, turn off the exhaust fan 304. When the edge strip droplets enter the ventilation connecting pipe 301 with the air flow, the edge strip droplets are condensed through the ventilation connecting pipe 301 and fall into the collection box 3. The droplets are melted by the heating guide plate 305, so that the droplets move along the heating guide plate 305 under the action of gravity and enter the first insulation connecting pipe 201 through the second insulation connecting pipe 202 for further recycling processing.

[0038] The specific working principle of the utility model is as follows: the online recycling device is installed at a suitable position through the mounting frame 103, and the bottom of the first heat-insulating connecting pipe 201 is connected to the next recycling and processing equipment. When the woven bag coated edge strips are recycled, the exhaust fan 304 is turned on to drive the air flow, so that the outside air enters the ventilation frame 1, and the airflow drives the edge strips into the ventilation frame 1. The airflow is guided by the limiting guide roller 104 so that the edge strips quickly adhere to the surface of the ventilation support mesh tube 105 with the airflow, and the rotating motor 101 drives the rotation of the ventilation support mesh tube 105 to wind the edge strips. When the edge strips are stably wound, the exhaust fan 304 is turned off, and the heating tube 106 is started to heat, and further The ventilation support mesh tube 105 is heated so that the edge strips wrapped around the outer peripheral surface of the ventilation support mesh tube 105 are heated and melted after reaching a certain temperature, and the molten droplets fall into the hopper 2 through the discharge pipe 102, and the droplets fall into the next recovery and processing equipment through the first insulation connecting tube 201 for further recovery and processing. When the edge strip droplets enter the ventilation connecting tube 301 with the airflow, the edge strip droplets are condensed through the ventilation connecting tube 301 and fall into the collection box 3, and the droplets are melted by the heating guide plate 305, so that the droplets move along the heating guide plate 305 under the action of gravity and enter the first insulation connecting tube 201 through the second insulation connecting tube 202 for further recovery and processing.

[0039] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. An online recovery device for woven bag film edge strips, comprising a ventilation rack (1), a hopper (2) and a collection box (3), characterized in that: A ventilation support mesh tube (105) is rotatably clamped in one end of the ventilation rack (1), a heating tube (106) is clamped and fixed in the ventilation rack (1), and the heating tube (106) is attached to the inner wall of the ventilation support mesh tube (105), a hopper (2) is arranged at the bottom of the ventilation rack (1), a collection box (3) is arranged at one side of the ventilation rack (1), an exhaust fan (304) is arranged at the top of the collection box (3), and a plurality of heating guide plates (305) are clamped and fixed from top to bottom on both sides of the collection box (3).

2. The online recycling device for woven bag film edge strips according to claim 1 is characterized by: Mounting frames (103) are welded and fixed on both sides of the ventilation frame (1), and a discharge pipe (102) is welded through one end of the bottom of the ventilation frame (1), and the discharge pipe (102) is located at the bottom of the ventilation support mesh pipe (105).

3. The online recycling device for woven bag film edge strips according to claim 1 is characterized by: Two limiting guide rollers (104) are clamped in the ventilation frame (1), and the limiting guide rollers (104) are located in the ventilation frame (1) at the other end relative to the ventilation support mesh tube (105). A rotating motor (101) is clamped through one side of the ventilation frame (1), and the rotating motor (101) is connected to the ventilation support mesh tube (105) through transmission. The rotating motor (101) is located at the other side of the ventilation frame (1) relative to the collection box (3).

4. The online recycling device for woven bag film edge strips according to claim 2 is characterized in that: A first thermal insulation connecting pipe (201) is welded through the bottom of the hopper (2), a second thermal insulation connecting pipe (202) is welded through the outer peripheral surface of the first thermal insulation connecting pipe (201), and the hopper (2) is welded through the bottom of the discharge pipe (102).

5. The online recycling device for woven bag film edge strips according to claim 1 is characterized in that: A ventilation connecting pipe (301) is welded through the top of the collection box (3), a heat dissipation fin (302) is welded and fixed to the outer peripheral surface of the ventilation connecting pipe (301), the ventilation connecting pipe (301) is inserted through and clamped on one side of the ventilation frame (1), and the top of the ventilation connecting pipe (301) is plugged into the inner side of the ventilation support mesh pipe (105).

6. The online recycling device for woven bag film edge strips according to claim 4 is characterized in that: An exhaust pipe (303) is welded through the top of the collection box (3), the exhaust fan (304) is clamped on the top of the exhaust pipe (303), and the other end of the second thermal insulation connecting pipe (202) relative to the first thermal insulation connecting pipe (201) is clamped on the bottom of one side of the collection box (3).

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